• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: A monitoring system and a method are provided to support inspection on a train by automatically collecting conditions of main equipments of the train to support operators with the collected conditions. CONSTITUTION: A condition detecting circuit(100) outputs electric signals about conditions of various devices and electric apparatuses related to train operation. A terminals(200) is separately arranged in each coach, and receives signals from a condition detecting circuit(100), processes the signals into data information for inspecting conditions of the devices, and transmits the data information through communication lines. A central control panel(300) controls terminals(200) to request condition information about the devices, and receives various condition information of coaches transmitted from the terminals(200) to determine existence of failure. A signal modem(400) transmits digital data received through the communication lines into analog signal, and demodulates received analog signals into digital data to relay communication. An operator sleeping prevention apparatus(500) causes operators to input secret codes in a certain time period to prevent the operators from sleeping.
    公开号:KR20000059333A
    申请号:KR1019990006829
    申请日:1999-03-03
    公开日:2000-10-05
    发明作者:임헌호；황우성；황동희；최재곤
    申请人:구자영；케이티전기 주식회사；
    IPC主号:
    专利说明:

    A monitering system and method of a railway vehicle
    The present invention relates to a monitoring system of a railroad car, and more particularly, to collect driving status and failure data of major devices and electric devices of a railroad car, and to allow a driver to check and take action through a central computer device of a cab (engine room). In addition, the present invention relates to a monitoring system for railroad cars that can be used for maintenance and repair work by providing various data as a database.
    The railway vehicle is equipped with various equipment and devices necessary for driving the vehicle, and auxiliary devices for the convenience of the passenger, and a plurality of vehicles are connected and run in series. For safety inspection of railroad cars or inspection according to driving conditions, check the inspection device for each device or inspect the device itself. The electric device is equipped with a control panel for each vehicle to display the operation status and operate by using an operation switch. Doing. Therefore, it is necessary to carry out individual inspection for each expense and individual inspection for each vehicle, and it is impossible to check the status of the vehicle, brake, or other equipment or devices necessary for safe operation while driving, and it is not easy to know the record of the failure status. there was.
    As a prior patent for improving such a conventional problem, Korean Patent Publication No. 97-8505 proposes "Failure data monitoring method of a railway vehicle using a personal computer", which records the failure status of each device on an IC card. An invention has been proposed in which the information of the IC card can be read from a personal computer to improve the efficiency of maintenance and repair of railroad cars by performing fault detection record, fault indication record and data analysis.
    However, the preceding patent is a technology that is used for analysis or inspection necessary for maintenance, regardless of whether the driver monitors the state of the vehicle in real time while driving, since the fault data is recorded in advance on the IC card to analyze and check the fault data. to be.
    On the other hand, the "monitoring device for railway vehicles" of Korean Patent Publication No. 97-10507 is to display the failure situation of various equipment of the railway vehicle in accordance with the item to make it easy to maintain the vehicle equipment of the railway vehicle, which is a failure As a degree of displaying the state in a predefined character, it is different from the apparatus for monitoring the state of the device in the cab of the entire vehicle to be proposed in the present invention.
    Another prior patent is the Korean National Patent Publication No. 96-22054, "Railway Vehicle Monitoring System", which installs the central unit in the front and rear cars, respectively, and installs the terminal unit in the remaining vehicles, through the communication line. An apparatus for receiving, storing and monitoring an abnormal state signal of a vehicle device while communicating, characterized in that the terminal device includes an external memory device, a touch screen, an internal memory device, an input / output control unit, and a display control unit. As a result, the test function can be recorded or confirmed in the terminal device so that various vehicle devices can be tested even in the event of an error in the communication line or the central device.
    However, these prior patents simply detect abnormal conditions of some vehicle devices and collect and determine them, and do not check the fatigue state, brake state, high heat state of axle oil, etc., which are a risk of vehicle derailment or large accident. There was a drawback that the driver could not monitor and manipulate all the conditions of the vehicle comprehensively.
    Accordingly, the present invention collects all the monitoring information such as the electric device for each passenger car of the railway vehicle, the state of the vehicle, the axle state, and the like in the cab to allow the driver to determine the state of the railway vehicle and control the operation. It is to provide a monitoring system and method for railway vehicles that can prevent them in advance and support prompt, accurate measures and cause identification.
    The present invention is equipped with a terminal device in each passenger car, the terminal device is connected to the central control unit in a serial transmission method to automatically collect the state of the main equipment of the train to support the crew driving work and support vehicle inspection Configure.
    The present invention displays the state information and the fault state of the device during operation to support the crew operation by displaying on the cab display device. If a fault occurs on the monitored device, the fault name and alarm is output to assist the crew in driving.
    In addition, initial setting information necessary for the operation of the apparatus, such as the knitting number, the number of knitting, the date, the time, and the axle limit data, is input by key operation through the touch screen of the display device. Collects and records data on failure and abnormality of equipment. Records recorded data of failures and abnormalities on a zip disk, and prints recorded data of failures and abnormalities in print.
    The system features a high-performance driving display device that combines a high-resolution graphic display and a touch screen input system, and records and manages fault data on ground equipment using a recording medium such as a straw disk. In addition, the microcomputer is used to analyze and display the device quickly and accurately when a failure occurs, and to monitor the operation status of each vehicle device in real time.
    The railroad vehicle monitoring system of the present invention includes a sensing circuit for sensing the state of various equipment of each passenger vehicle as an electrical signal, a terminal apparatus for transmitting information sensed by the sensing circuit at the request of the central control panel, and the terminal of each passenger vehicle. Central control panel that collects data from the device, analyzes the collected information, displays it on the touch screen, saves it as a database, manages it, and selects and monitors the desired information through the touch screen. And a drowsiness preventing device for monitoring the driver's condition by allowing the driver to input a password at regular time intervals, and installed between each terminal device and the central control panel to convert mutual transmission signals into analog signals and convert the received signals into digital signals. Is characterized by including a demodulator and a demodulator for demodulating and transmitting have.
    The detection circuit is configured to monitor the condition of compressors, heaters, fans, etc. of the air conditioners of each passenger car, detect door conditions of railroad cars, detect faults of brake control devices, detect sewage tank levels of vehicles, and fail to switch toilet air compressors. Supervision and control, including sensing, axle temperature sensing, bogie fatigue / crack sensing, wheel wear sensing, generator synchronization and load control sensing of the generating vehicle.
    1 is a configuration diagram of a monitoring system for a railway vehicle according to the present invention.
    Figure 2 is a block diagram of a terminal device of a railway vehicle monitoring system according to the present invention.
    Figure 3 is a central control panel configuration of the railway vehicle monitoring system according to the present invention.
    Figure 4 is a communication line connection diagram through the signal modulator, demodulator according to the present invention.
    5 is a block diagram of a signal modulator according to the present invention.
    Figure 6a is a block diagram of a driver drowsiness prevention device according to the present invention.
    Figure 6b is a panel configuration of the driver's drowsiness prevention apparatus according to the present invention.
    7 is a monitoring control flowchart of the central control panel according to the present invention.
    8 is an exemplary view showing a screen of the vehicle display mode according to the present invention.
    9 is an exemplary view showing a screen of a character display mode according to the present invention.
    10 is an exemplary view showing an axle temperature general display screen according to the present invention.
    11 is an exemplary view showing an axle temperature trend screen according to the present invention.
    12 is an exemplary view showing an axle temperature distribution screen according to the present invention.
    Figure 13 is an exemplary view showing a balance screen according to the present invention.
    14 is an exemplary view showing a generator status screen of a power generation vehicle according to the present invention.
    15 is an exemplary view showing a door control screen according to the present invention.
    16 is an exemplary view showing a system display screen according to the present invention.
    17 is an exemplary view showing an information change screen according to the present invention.
    <Description of the code | symbol about the principal part of drawing>
    100: state detection circuit 200: terminal device
    210: digital input unit 220: analog input unit
    230: control unit 240: operation unit
    250: status display unit 260: communication module
    230: storage 300: central control panel
    310: communication module 320: status determination unit
    330: data analysis unit 340: central control unit
    350: database 360: alarm
    370: touch screen 380: output unit
    400: signal modulator / demodulator 410: modulation circuit
    411: current amplifier 412: modulation coil part
    420: demodulation circuit 421: demodulation coil
    422: amplifier circuit 423: comparator circuit
    500: driver drowsiness prevention device 510: communication unit
    520 control unit 530 display unit
    540: key input unit 550: alarm output unit
    Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    1 is a conceptual diagram of a central monitoring and control system for a railway vehicle according to the present invention. As shown in FIG. 1, an air conditioner and an indoor temperature, a door, a braking device, a toilet, axle temperature, a crack state of a truck, and wheel wear of a corresponding vehicle are illustrated. A state detection circuit 100 for detecting a state of various devices and electrical devices related to the operation of the vehicle, such as a state, respectively, as an electrical signal, and are independently provided for each passenger vehicle, so that the digital signals and analog signals of the state detection circuit 100 are provided. Each terminal device is connected to the terminal device 200 and the terminal device 200 of each passenger vehicle through a communication line to process the data information for diagnosing the state of the various devices received through the communication line; Request the status information of the devices by controlling the 200, and receives a variety of device status information of each of the passenger cars transmitted from each terminal device 200, whether or not a failure occurs It analyzes each state information data and makes it into a database, stores it, displays the state of the desired car or the desired devices on the screen by the driver's operation through the touch screen, and handles alarm control and output of recorded data. And digital data transmitted to the communication line by being installed in the central control panel 300, the terminal apparatus 200 of each passenger vehicle, and the central control panel 300, respectively, as an analog signal, and the received analog signal is digital. It is connected to the central control panel 300 and the signal modulator / demodulator 400 which demodulates the data and relays the communication. The password is input at predetermined time intervals. It is configured to include a driver drowsiness prevention device 500 to check the alarm control to prevent drowsiness All.
    FIG. 2 is a block diagram of a terminal device installed in each carriage of a monitoring system for a railroad vehicle according to the present invention. As shown therein, a state sensing circuit 100 for detecting a state of various devices and electrical devices of the corresponding carriage is shown. The digital input unit 210 and the analog input unit 220, which receives the digital signal and the analog signal sensed from the digital signal, respectively, and processes the various state signals input through the digital input unit 210 and the analog input unit 220 A control unit 230 for displaying and serial communication control, a control unit 240 for inputting user control signals such as self-diagnosis, status check, and operation control to the control unit 230; and the state signal of the control unit 230. A status display unit 250 which displays various device names and the state of the device by the processing, and transmits state information to the central control panel 300 under the control of the controller 230. It is configured to include a communication module 260, a storage unit 270 for storing the status signal of each unit in the processing program and the controller 230 for processing the status signal of the controller 230.
    3 is a configuration diagram of the central control panel of the railway vehicle monitoring system according to the present invention, as shown in the figure, connected to each terminal through the communication line from the terminal device 200 installed to receive the status information request and status information A state determination unit 320 for decoding the state information of various devices for each vehicle received through the communication module 310 and determining the state of various devices, and the state determination unit 320. Data analysis unit 330 for analyzing and analyzing the state determination data of each vehicle, date and time, device, and state change information, and state information of various devices analyzed by the data analysis unit 330. Control the database 350, the communication module 310, the state determining unit 320, the data analyzing unit 330, and the database 350, respectively, and store a failure according to the state determination. Display The central control unit 340 for controlling the alarm control and the communication between the terminal devices 200, and the status display for each vehicle and device on the screen in a predefined format by the control of the central control unit 340. In addition, the touch screen 370 for receiving a user's operation signal to the central control unit 340, and the alarm unit 360 for outputting an alarm according to the failure caused by the control of the central control unit 340, And an output unit 380 for outputting information of the database 350 to a printed or external recording medium under the control of the central control unit 340.
    The state sensing circuit 100 includes a digital sensing circuit for detecting an on / off state of a relay or a switch of each device, and an analog sensing circuit for detecting an analog signal such as a temperature or a gauge. Detection, wheel wear detection, truck crack detection, air conditioner and room temperature detection, passenger door detection and control, dirt handling device, water tank level, small variable automatic water extraction device, line indicator, electric signboard, self-regulating heater It is made to detect each state.
    In addition, the communication between the terminal device 200 and the central control panel 300 has a dual port to perform communication through one communication port, and when an error occurs in transmitting and receiving information, the communication is performed through another communication port. Each terminal device 200 includes a self-diagnosis circuit to perform a self-diagnosis function in a system test mode. The self-diagnosis circuit constitutes a circuit for outputting the self-diagnosis signal to the input terminals of the digital input unit 210 and the analog input unit 220 in the control unit 230, and the control unit 230 outputs the self-diagnosis signal at the time of self-diagnosis. Output to the input port in turn to compare the signal input through each input circuit with the output of the self-diagnostic signal is configured to determine whether or not normal.
    4 is a communication line connection diagram of a monitoring system for a railway vehicle according to the present invention. As shown in FIG. 4, a modulation circuit 410 for modulating digital transmission data TX into an analog signal and transmitting it to a communication line, and a communication line Communication between the communication module of each terminal 200 and the central control panel 300 includes a signal modulator / demodulator 400 having a demodulation circuit 420 for demodulating the analog signal received through the digital reception data RX. Each module is configured to communicate using signal modulation and demodulation.
    5 is a block diagram of a signal modulator according to the present invention. As shown in FIG. 5, the modulation circuit 410 includes a current amplifier 411 for receiving and amplifying digital transmission data TX, and a current type amplifier. A modulation coil unit 412 for modulating the transmission signal amplified by the amplifier 411 into an analog transmission signal and transmitting the signal to the communication line. The demodulation circuit 420 includes a demodulation coil section 421 for demodulating an analog received signal received from a communication circuit into a digital signal, an amplifier circuit 422 for amplifying a demodulation signal of the demodulation coil section 421. And a comparator circuit 423 which converts the signal amplified by the amplifier circuit 422 to a reference value and converts the digital amplified data into RX.
    Figure 6a is a block diagram of the driver's drowsiness prevention device according to the present invention, Figure 6b is a driver's drowsiness prevention device of the present invention, as shown, is connected to the central control panel 300 and communicates with the central control panel 300 The communication unit 510 for receiving the password, the password input time, the first, second, the third alarm time setting value from the central control panel 300 through the communication unit 510 and stored in the internal memory, the password The remaining time for the input is counted and displayed, and if there is no password input until the password input time elapses, the alarm is controlled based on the alarm time and notified to the central control panel 300. Control unit 520 that automatically stores the conversion time in the internal memory to process the information so that it can be confirmed after the operation, and the time remaining under the control of the control unit 520 A display unit 530 for displaying a key, a key input unit 540 for inputting a password for confirming drowsiness prevention in the control unit 520, and a drowsiness prevention control by the drowsiness prevention alarm control of the central control panel 300. It comprises a driver drowsiness prevention device 500 consisting of an alarm unit 550 for generating an alarm sound and an alarm display.
    In addition, a drowsiness prevention setting mode for setting a password, a password input time, an alarm time in the drowsiness prevention information changing mode in the central control panel 300, and first, second, and third alarms of the drowsiness prevention device 500 If no password is input afterwards, it is configured to further include a drowsiness control mode that controls to automatically decelerate the speed of the train.
    Referring to the operation of the railroad vehicle monitoring system configured as described above is as follows.
    The state detection circuit 100 installed on the monitoring target of each vehicle includes the air conditioner and the heater of the passenger car, the heater of the water tank, the anti-skid device of the brake device, the automatic door of the passenger car, the waste disposal device, the small variable automatic water extraction device, the side. Detects the operation status of general equipment, bearing temperature of axles, wheel wear detection, bogie crack detection, bogie crack detection, etc. It performs indoor temperature control, passenger car door control, power generator generator automatic synchronization and load control.
    The detection of the operation state of the general devices, the on / off state of the relay and the switch of each device, or the state detection using a general sensing circuit according to the characteristics such as resistance value change, voltage change, current change using a sensor Do In addition, each terminal device 200 is connected to the control device and the control line so as to control the device by the control command of the central control panel 300.
    In the terminal device 200, an on / off state signal such as a relay or a switch is input through the digital input unit 210, and the resistance value, the current value, and the voltage value change of the sensors are analog / digital converted through the analog input unit 220. Take input. The input state signals are stored in the storage unit 270 by processing data for transmission, and transmits the corresponding information through the communication module 260 whenever there is a request for information transmission from the central control panel 300.
    The communication method between the central control panel 300 and the terminal device 200 modulates and transmits the transmitted data into an analog signal through each signal modulator / demodulator 400, and receives and demodulates the received analog signal into digital data. . That is, the digital transmission signal is amplified by the current amplifier 411 and modulated to the analog transmission signal through the modulation coil unit 412 and transmitted to the communication line. The analog received signal received from the communication line is demodulated into a digital signal through the demodulation coil unit 421, amplified through the amplifier circuit 422, and then shaped into a digital signal through the comparator circuit 423. Is demodulated to a digital signal and received.
    The communication is performed by the serial communication (RS-232c) method using the signal modulator and demodulator 400. By using the signal modulator and demodulator 400 between the units, the communication effective distance becomes long, It is also strong in contact resistance that occurs at the connection connector between the passenger and the passenger car, so that the data exchange between each passenger car is smooth.
    In addition, the communication modem may use RS-485, current loop, or CAN (Controller Area Network) method, and it can cope properly according to the surrounding environment, and the communication line of each unit is secured by two channels. It is configured to ensure stability.
    On the other hand, the drowsiness prevention device 500 connected to the central control panel 300 is configured as a separate independent terminal device to be configured around the driver, and set the driver to input a password within a certain set time, if there is no password input , Alarm control. If there is no password input within the set time, it sends the control command to automatically decelerate the speed of the train if there is no password input even after the alarm process is requested for the first time and the alarm process is over a predetermined number of times (example 3 times). In addition, the central control panel 300 controls the speed control device of the train according to the deceleration command and controls to notify the command room of the train stop when the train is stopped due to the deceleration. In addition, the central control panel 300 allows the user to set a password, basic check time (set time), first, second and third alarm intervals, and at least 30 minutes in case the driver arbitrarily delays the check time. It is not possible to set the time, and all changed information and conversion time during the driving are automatically stored in the internal memory device so that it can be checked after the driving.
    As shown in FIG. 7, after the system initialization and self-diagnosis are performed, the central control panel 300 calls the terminal device 200 of the passenger vehicle to request status information and receives the status information from the terminal device 200. When the received information is analyzed, the analyzed information is stored in a database and the status information is detected. When the abnormal state is detected, the driver is controlled by the alarm control, and the terminal number 200 is increased to call the terminal device 200 of another vehicle to request information. That is, the central control panel 300 sequentially calls the plurality of terminal apparatuses 200 at regular time intervals, requests status information, receives information, analyzes the received information, displays the information on a screen, and makes a database. do.
    Since the central control panel 300 is configured to monitor the state of each vehicle by the screen manipulation using the touch screen 370, the driver directly manipulates the graphic or text icon provided on the screen to obtain desired state information. Monitor
    The screen configuration of the touch screen includes a main screen for displaying graphics and texts in the center of the screen, a mode display, a date and time display window at the top of the screen, and a vehicle display, text display, and axle at the right end of the screen. Place menu icons such as temperature, balance status, generator, door, alarm status, alarm list, system, information change, and help, and at the bottom of the screen, a letter icon or a button icon representing the menu of the current mode displayed on the main screen, In addition, the menu display window is configured to display texts of the three most recent fault conditions among the current alarm information.
    FIG. 8 is a diagram illustrating a screen display of a vehicle display mode according to the present invention. In addition to the picture of the vehicle, the display lamp and the air conditioner, the indoor temperature, etc., which indicate the overall situation of each vehicle, are shown. The display lamps collectively display all the states of each vehicle, and are displayed in green when normal and in red when any one of the various devices being monitored has a problem. The air conditioner display lamp is a lamp indicating the condition of the air conditioner installed in each vehicle and is displayed by dividing the normal and abnormality into green and red, respectively. In addition, the indoor temperature display window is a portion that displays the indoor temperature of each vehicle, and is displayed in red letters when out of the preset temperature range.
    9 is a view showing a screen of the character display mode according to the present invention, by pressing the character display icon on the right side of the screen to select, the main screen axle temperature group, the balance crack state group, wheel wear state group, air conditioner and room temperature group In addition, the system is divided into the brake status group, the slipper group, the door status group, and the toilet status group, and each group can be directly selected on the screen.
    FIG. 10 illustrates a general display screen of an axle temperature. As shown in the drawing, a vehicle display and an axle of each vehicle are displayed on a center portion of the screen, and a temperature is displayed for each axle number by using a letter table at the upper and lower ends.
    The axle bearing temperature detection, which is a main feature of the present invention, may cause damage of the bearing of the axle when the temperature is excessively high. In the related art, the display flag is projected according to the bearing temperature of each axle, It could not be monitored during operation because the inspector could check only when the eyes of the manager were checked.
    Accordingly, the present invention provides a temperature sensor on each axle, and transmits the temperature value of each axle detected through the temperature sensor to the central control panel 300 through the terminal device 200, the central control panel 300 installed in the cab In text and graphic form, the driver can easily observe the temperature of all axles in one place.
    When the axle temperature is selected in the right mode selection unit on the screen, the first screen appears as shown in FIG. 10, and the temperature of the axle for each vehicle is displayed numerically on one screen together with the shape of the vehicle. Each value becomes normal / abnormal state according to the preset standard value. If it is normal, it is displayed in green letters, and in abnormal cases, it is displayed in red letters, and the wheel color of the vehicle picture in the center is also changed.
    In addition, there is a screen display in the form of a trend and a distribution chart. To switch to another screen, the screen is switched by selecting a menu at the bottom left.
    FIG. 11 is an exemplary diagram of an axle temperature trend screen according to the present invention. As shown in FIG. 11, bearing temperatures of eight axles for each vehicle are displayed in a graph form on the trend screen, and only the current value is displayed. It also keeps data up to 24 hours old and shows it on the screen. For this function, the screen is largely divided into two parts: the upper part shows the data of the current channel along with the contents of the data, and the lower part shows the temperature change state of each of the eight axles according to the color of the upper part. Show in form A red cursor bar is provided on the graph so that when the user touches the cursor bar on the screen, it moves to the position within the graph range.
    At this time, the time of the position where the cursor bar is placed and the data of each axle temperature at that time are displayed on the screen, and when the zoom button is pressed, the graph is enlarged / reduced based on the cursor bar. If you press the button of the current position, the position of the graph is automatically moved to the position of the current time. To see the status of other vehicles, press the number button at the bottom to move to the vehicle screen of the corresponding number.
    On the other hand, Figure 12 is an illustration of the axle temperature distribution screen according to the present invention, as shown in the graph, in the form of a distribution chart showing the number of the corresponding axle by temperature range by combining the total vehicle axle temperature of the entire axle This is a screen that you can see at a glance the temperature distribution status. At the bottom of the graph on the screen, the number of abnormal axles outside of each threshold is displayed numerically. That is, some numbers below the lower limit temperature, some above the upper limit temperature, some above the upper limit temperature, etc. are displayed as numbers.
    Figure 13 is an exemplary view of the balance screen according to the present invention, which illustrates a screen for monitoring the crack (or fatigue) state and the wear state of the wheel, which is one of the main features of the monitoring target of the present invention.
    Among the vehicle condition monitoring function, the wheel wear detection detects the wear level of the wheels installed and driven in each vehicle, and transmits the data to the central control panel 300, and the wear level of each wheel is measured by the central control panel 300. An alarm is generated for a wheel that is displayed on one screen and falls below a predetermined standard value so that replacement can be performed before an accident due to wear of the wheel occurs.
    The present invention is equipped with a sensor on one of the four wheels included in one truck in order to measure the diameter of each wheel, and after driving a certain section to detect the number of revolutions of the wheel, at this time using the travel distance and rotation speed After calculating the circumferential length of the wheel, the diameter of the wheel is finally detected and displayed on the screen using this data. The reference data used at this time are the minimum allowable diameter and the maximum allowable diameter of the wheel, which can be manipulated in the system, and the condition of the wheel is classified as normal and abnormal according to the data. That is, less than the minimum value is abnormal, normal between the minimum value and the maximum value is abnormal, abnormality above the maximum value is abnormal, and when there is no detection value, the sensor line error is displayed.
    In addition, the bogie crack monitoring function is equipped with a single-phase gauge (Gauge) at the position where the crack of each bogie can occur, detects the signal generated from the gauge to determine the crack state of the bogie to transmit information to the central control panel 300 And, by displaying the crack state of the balance in the central control panel 300 to prevent accidents due to the crack and damage of the balance in advance. The trolley crack detection sensor uses a method of detecting a crack by attaching a thin film pattern to a site where a crack is concerned and detecting a change in impedance caused by the crack, and a method of detecting a crack using an ultrasonic sensor. In the central control panel 300, when the information of the corresponding vehicle is transmitted, it is displayed in green when it is normal and in red when it is abnormal so that the driver can grasp the state of all vehicles at a glance.
    14 is a diagram illustrating an example of a generator status screen of a power generation vehicle according to the present invention. When two or more generators are used in parallel operation, the synchronous injection timing is automatically determined and the synchronous injection is automatically performed according to the load variation. It is to monitor the generator control state that performs comprehensive power control, such as controlling the generator and automatically adjusting the amount of power generated and increasing and decreasing the number of generators used. In order to satisfy the above functions, various functions are performed by using ASD (Auto Synchro Device) and PWC (Power Controller). Main functions include light load control, overload control, faucet low limit control, and generator upper limit schedule control. , Generator proportional control, generator optimal control, bus frequency constant control, power factor control, etc. In the present invention, the overall operating state of the generator is displayed in a graphic form on the screen of the system so that the driver can monitor the execution state of the above functions, each content is displayed in the normal or alarm state according to the state. That is, as shown in FIG. 14, the generator driving state of the power generation vehicle is displayed on the screen. When two or more generators are operated in parallel, various information such as the state and operation mode of each generator, a load, an error state, and the like are displayed.
    15 is an exemplary view of the door control screen according to the present invention, as shown in this, shows the opening and closing state of the doors on the left and right sides of each passenger car, in addition to the button for giving the opening and closing command for each door is prepared Remote control can be performed. The opening and closing command of each door can be done individually, and when the train arrives at the station and opens and closes the doors of all passengers at the same time, the buttons for opening and closing the doors on the left and right sides can be used. do. In the figure of train, the opening / closing status of each door is displayed by color so that you can understand the door status of all vehicles at a glance.
    On the other hand, the alarm status screen displays the date and time that occurred together with the contents of the alarm information currently generated, and these alarm information means information that is in the current alarm state and has not been recovered yet. Alarm information is displayed using the English abbreviation meaning the eight monitoring group names and the number indicating the sequence of the corresponding channel, and the number of the data of the corresponding channel is the data content (Example 1 3 axle bearing temperature) is displayed, and the values that set the alarm range such as the lower limit, upper limit, and limit are displayed numerically, and if not applicable, blank or digital input indicates 'open' or 'close'. do. The current value, alarm date and time are displayed.
    All alarm information is displayed as above, and up to 20 alarms are displayed on one screen, and if more than 20 alarm data are passed to the next page, the page number generated according to the number of alarms at the bottom of the screen Appears and press this number to switch to the screen of the page.
    Unlike the alarm status, the alarm list screen displays not only the current alarm but also the information of the alarm that was previously generated and released. The basic display content is the same as the alarm status screen. In the alarm list, the display color of the text is displayed in red when the information is in the current alarm state, but in yellow for the alarms that have occurred before and released. Do it.
    The number of pages that can be displayed on this screen is up to 16, which can represent a total of 320 data. Even though the total number of data can be displayed on the screen, all data is stored separately in the internal memory area. The data is stored for a while. When the train enters the maintenance window and collects only the recording medium (disk mounted on the Zip Drive) in the central control panel 300 and inputs it to a separate vehicle management computer, all stored data are checked, reviewed and It can be printed and inspected, reducing the hassle of writing a separate vehicle management journal or paper.
    FIG. 16 is an exemplary view of a system display screen according to the present invention. As shown therein, the system display screen shows information on the situation of the railway vehicle monitoring system of the present invention, not information on a state of a train.
    On the screen, a picture of the train and a local unit (terminal device 200) mounted on each train and a picture of the central unit (central control panel 300) are displayed together, and each terminal device and the central control panel indicate a situation. If the unit is operated normally with a lamp, it will be displayed in green. If the unit cannot be exchanged properly due to malfunction or disconnection of the communication line, it will be displayed in red. In the system display of such a railway vehicle monitoring system, each terminal and the central control panel are provided with a self-diagnosis circuit to monitor each state by performing a self-diagnosis function.
    FIG. 17 is an exemplary view of an information change screen according to the present invention. As shown therein, a date setting, a time setting, a password change, a model, a vehicle number, a trained amount, a departure point, a destination information, a sleepiness prevention time, The vehicle information and the input keypad are displayed in one screen, and the vehicle information displays the upper limit, the lower limit, and the maximum information of the room temperature, the axle temperature, the wheel outer diameter, and the like. When the information is touched, a cursor appears in the corresponding part when the corresponding item is touched, and the data can be modified by inputting or deleting data on the keypad of the screen.
    The help screen is a screen that presents instructions on how to use the system or how to operate the system. The main screen is displayed at the top of the screen. If you select a menu at the top, a description of the menu is displayed on the screen. , 'Previous Screen', 'Up', 'Down', 'Next Screen', etc. to operate using the control button.
    As described in detail above, the present invention can be easily monitored at all times through the central control panel installed in the cab for the essential parts of the train operation, and in particular, the bearing temperature of the axle, the fatigue state of the bogie, etc. Since it can be monitored, accidents can be prevented in advance, and the information recorded in the data storage device can be easily used to comprehensively manage all trains.
    In addition, the present invention provides a display environment in which a driver can easily monitor and monitor the various monitoring groups, and analyzes the corresponding information to alert normal and abnormal conditions, thereby simplifying the overall monitoring and making it very easy even for non-experts. It is effective to provide the monitoring result on the screen for easy understanding.
    In addition, the present invention is equipped with a drowsiness prevention device for preventing the driver's drowsiness during long-distance operation of the train by allowing the driver to enter a password every certain time, thereby preventing the driver's drowsiness to prevent accidents in advance have.
    权利要求:
    Claims (12)
    [1" claim-type="Currently amended] The state that detects the state of various devices and electric devices related to the operation of the vehicle, such as air conditioner, room temperature, door, brake system, toilet, axle temperature, bogie crack, wheel wear, etc. Sensing circuit 100,
    The terminal device 200 is installed independently for each passenger vehicle and receives the digital signal and the analog signal of the state detection circuit 100 and processes them as data information for diagnosing the state of the various devices and transmits them through a communication line. ,
    Is connected to the terminal device 200 of each vehicle by a communication line to control the respective terminal device 200 to request the status information of the devices, and receives the various device status information of each vehicle transmitted from each terminal device 200 Determining whether a failure occurs, analyzing and storing each state information data and storing it as a database, and displaying the state of the desired passenger car or the desired devices on the screen by the driver's operation through the watch screen, and the alarm control and recording data. Central control panel 300 for processing and controlling the output and the like,
    Signal modulation and demodulation, which is installed in the terminal device 200 and the central control panel 300 of each passenger vehicle, respectively transmits digital data transmitted through a communication line as an analog signal, and demodulates the received analog signal into digital data to perform communication relay. 400,
    The driver drowsiness prevention device 500 connected to the central control panel 300 is mounted in the cab and checks the driver's state at regular time intervals by inputting a password at a predetermined time interval, and performs an alarm control for preventing drowsiness. Monitoring system for a railway vehicle, characterized in that configured to include.
    [2" claim-type="Currently amended] According to claim 1, wherein the driver drowsiness prevention device 500,
    A communication unit 510 connected with the central control panel 300 for communication;
    Through the communication unit 510 receives the setting value for the password, password input time, the first, second, third alarm time from the central control panel 300 and stores in the internal memory, and counting the remaining time for the password input In addition to controlling the display, if there is no password input until the password input time elapses, the alarm is controlled based on the alarm time and notified to the central control panel 300, and automatically stores the changed information and the conversion time during driving in the internal memory. The control unit 520 for processing information so that the operation can be confirmed after the operation;
    A display unit 530 for displaying the remaining time under control of the control unit 520, a key input unit 540 for inputting a password for confirming drowsiness prevention into the control unit 520,
    By the drowsiness prevention alarm control of the central control panel 300 is made of an alarm unit 550 for generating an alarm sound for alarming drowsiness and alarm display,
    The drowsiness prevention setting mode for setting a password, a password input time, an alarm time in the drowsiness prevention information change mode to the central control panel 300, and a password even after the first, second, and third alarms of the drowsiness prevention device 500 If is not input, the railway vehicle monitoring system, characterized in that it further comprises a sleepiness control mode for controlling to automatically reduce the speed of the train.
    [3" claim-type="Currently amended] The method of claim 1, wherein the terminal device 200,
    A digital input unit 210 and an analog input unit 220 for receiving a digital signal and an analog signal sensed by the state detection circuit 100 that detects a state of various devices and electric devices of the vehicle as digital signals, respectively;
    A control unit 230 which processes various status signals inputted through the digital input unit 210 and the analog input unit 220 to control display and serial communication;
    An operation unit 240 for inputting a user operation signal such as self-diagnosis, status check, operation control, etc. to the controller 230;
    A status display unit 250 which displays various device names and the state of the device by the status signal processing of the controller 230;
    A communication module 260 having a dual communication port for transmitting state information to the central control panel 300 under the control of the controller 230;
    And a storage unit (270) for storing a program for processing the state signal of the control unit (230) and a state signal of each device processed by the control unit (230).
    [4" claim-type="Currently amended] The method of claim 1, wherein the central control panel 300,
    A communication module 310 having a dual communication port connected to each vehicle through a communication line from the terminal devices 200 installed in each passenger vehicle to receive a status information request and receive status information;
    A state determination unit 320 for decoding the state information of the various devices for each vehicle received through the communication module 310 to determine the state of the various devices;
    A data analysis unit 330 which analyzes the state determination data of the state determination unit 320 and analyzes and processes the vehicle, date, time, device, and state change information into a database;
    A database 350 for storing state information of various devices analyzed by the data analyzer 330;
    The communication module 310, the state determination unit 320, the data analysis unit 330, and the database 350, respectively, the failure display and alarm control according to the status determination and each terminal device 200 A central control unit 340 for controlling communication with the;
    By displaying the state of each vehicle and device on the screen in a predefined format by the control of the central control unit 340, and receiving the user's operation button display and its operation signal to the central control unit 340 Watch screen 370,
    An alarm unit 360 for outputting an alarm according to a failure occurrence under the control of the central control unit 340, and an output for printing or recording information of the database 350 on a recording medium under control of the central control unit 340; Railroad vehicle monitoring system, characterized in that configured to include a unit (380).
    [5" claim-type="Currently amended] The method of claim 1, wherein the signal modulator 400,
    A current amplifier 411 for receiving and amplifying the digital transmission data TX, and a modulation coil portion 412 for modulating the transmission signal amplified by the current amplifier 411 into an analog transmission signal and transmitting it to a communication line. A modulation circuit 410 formed;
    A demodulation coil section 421 for demodulating an analog received signal received from a communication circuit into a digital signal, an amplifier circuit 422 for amplifying a demodulation signal of the demodulation coil section 421;
    Monitoring a railway vehicle comprising a demodulation circuit 420 consisting of a comparator circuit 423 for converting the signal amplified by the amplifier circuit 422 to a reference value and converting the signal amplified into digital reception data RX. system.
    [6" claim-type="Currently amended] The terminal device detects the state of the monitored devices of each train through a sensing circuit and collects them, and the state of various devices is operated by the driver through the watch screen at the central control panel of the cab connected to the terminal device of each car by a communication line. In addition, to configure the monitoring system of the railway vehicle including a driver drowsiness prevention device that monitors the driver's condition by inputting a password to prevent drowsiness at regular intervals,
    The central control panel may include: a first process of initializing various reference values for determining a vehicle state at system booting and transmitting and initializing the reference values to a terminal device of each passenger vehicle;
    The central control panel includes a second step of requesting status information by sequentially calling terminal equipment of each passenger at regular time intervals after system initialization;
    The terminal device is connected to the axle temperature, the balance crack state, the wheel wear state, the air conditioner and the room temperature, the braking state, the anti-slip device, the entrance door state through the state sensing circuit. It detects and stores the 'toilet situation' as an electrical signal and determines whether the abnormality is detected for each sensing object, and transmits the status information of the stored various monitoring target devices to the central control panel when the status information is requested from the central control panel. 3 courses;
    When the central control panel receives the status information from the terminal device, a fourth step of analyzing the received information to detect whether there is an abnormality for each device by the status information, and to store the received information into a database;
    The central control panel is based on the state information of the devices for each passenger vehicle stored in the fourth process' vehicle display ',' axle temperature ',' carriage status', 'generator', 'door access',' alarm status', ' A fifth process of displaying on the watch screen screen for each of the alarm list ',' system ',' information change 'and' help 'modes and displaying detailed information of the corresponding mode by the operator's screen operation;
    The central control panel transmits 'password', 'password input time', and 'alarm time' information to the driver's drowsiness preventing device in the system initialization process of the first process, and whether the password is input from the driver's drowsiness preventing device and alarm And a sixth process of receiving information on whether to make a database as driver state monitoring information and storing the database, and instructing a deceleration control of the train when a predetermined number of sleepiness prevention alarms are generated.
    [7" claim-type="Currently amended] The method of claim 6, wherein the second process and the third process,
    A signal modulation and demodulation device is provided for each terminal device of the central control panel and the passenger car to modulate and transmit the transmitted data into an analog signal, to demodulate and receive the received signal into digital data, and to communicate in one-to-one serial communication system. Monitoring method of rolling stock.
    [8" claim-type="Currently amended] The screen of the watch screen of the fifth process,
    In the center of the screen, place the main screen that displays the status by graphic, text,
    Place the mode display, date and time display at the top of the screen,
    'Vehicle Display', 'Character Display', 'Axle Temperature', 'Car Status', 'Generator', 'Access Door', 'Alarm Status', 'Alarm List', 'System', 'Change Information' , Place a menu icon for "help",
    At the bottom of the screen, a menu icon is displayed to display a text icon or a button icon representing a menu of the current mode displayed on the main screen, and the three most recent fault conditions among the current alarm information.
    Operating the menu icon, and the character or button icon of the menu to select the desired information to monitor the railway vehicle characterized in that it was made to monitor.
    [9" claim-type="Currently amended] The method of claim 6, wherein the fifth process,
    Each vehicle has a picture of the vehicle with a car number, a vehicle status display lamp that shows the overall condition of each vehicle, an air conditioner display lamp that displays the operating condition of the air conditioner, and an indoor temperature display window that displays the room temperature numerically. The vehicle display mode by displaying the array;
    'Axle temperature group', 'balance crack group', 'wheel wear condition group', 'air conditioner and room temperature', 'braking device status group', 'anti-skid device group', 'door condition group', 'toilet situation' A text display mode for displaying a character display initial screen for selecting a group 'and a state of each device for each passenger vehicle of the group by text and numerical value by selecting each group on the text display initial screen;
    The temperature sensor is installed on each axle to detect the temperature value of each axle collected according to the preset reference color by distinguishing between normal / abnormal color and displaying character and graphic form for each axle of the car so that the driver can check the temperature of all axles in one place. With an axle temperature mode for easy viewing;
    Detects the diameter of at least one wheel for each passenger car and displays the numerical value, and generates distinctive indications and alarms for wheels below a preset standard value. A bogie state monitoring mode in which a gauge is mounted and detects a signal generated by the gauge and discriminates and displays whether it is normal or abnormal based on a reference value;
    Generator status monitoring mode for displaying various types of information such as status and operation mode, load and error status of each generator in a graphic form when two or more generators of the generating vehicle are operated in parallel;
    The opening and closing status of the doors on the left and right sides of each passenger car is displayed in color with the picture of the train, showing the opening and closing status of each door at a glance so that the status of all doors can be identified at a glance. A door monitoring mode for remotely controlling left and right sides as well as individual control;
    An alarm status mode for simultaneously displaying the date and time of occurrence of the alarm information and the page selection button for a plurality of pages;
    Unlike the alarm status, not only the current alarm but also all the information of the alarm that was previously generated and released, display the alarm that occurred in the past and the alarm that occurred in the past, and displays the alarm status information in the internal memory area. An alarm list mode for storing separately in addition to the recording medium and collecting only the recording medium and inputting the recording medium into a separate vehicle management computer to check, review and print and check all stored data;
    In addition to the picture of the train, the terminal equipment mounted on each train and the picture of the central control panel are displayed together, and each terminal device and the central control panel have lamps to indicate the status of the system. Wow;
    Date setting, time setting, password change, vehicle type, vehicle number, trained amount, starting point, destination information, drowsiness check time, vehicle information, input keypad are displayed on one screen, and the vehicle information is the indoor temperature axle temperature The upper limit, lower limit, and maximum limit information of the wheel diameter, etc. are displayed. In the information change mode, a cursor appears at a corresponding part when the corresponding item is touched, and at this time, an information change mode for modifying by inputting or deleting data on the keypad of the screen;
    Display the main menu at the top of the screen to display the instructions on how to use the system or how to operate the system.If you select the menu at the top, the description of the menu is displayed on the screen. A method for monitoring a railway vehicle, wherein a help mode for operating by using a control button unit such as a screen, a 'up', 'down', and a 'next screen' is selectively displayed on a lower surface by an operation of a watch screen.
    [10" claim-type="Currently amended] The method of claim 9, wherein the axle temperature mode is
    In addition to the shape of the vehicle, the axle temperature for each vehicle is displayed as a number on one screen, and each value is normal / abnormal according to a preset reference value. A general display screen of the axle temperature, which is displayed while the wheel color of the vehicle picture in the center is changed;
    The bearing temperature of 8 axles for each vehicle is stored up to 24 hours before the current value along with the current value, and the data of the corresponding channel is displayed in text together with the contents of the data. It shows the temperature change status of two axles in the form of a graph. When the user places the cursor bar on the screen, it provides a red cursor bar on the graph to move to the position within the graph range. In addition to displaying the time of the location and the data of each axle temperature at that time, it also provides a zoom button for the corresponding part, a current location button that automatically moves the graph position to the current time location, An axle temperature trend screen for displaying and displaying a number button for moving to a vehicle screen of a corresponding number;
    The total axle temperature of the vehicle is summarized to show the number of axles by temperature range in the form of a distribution chart.The lower part of the graph on the screen shows how many below the lower limit temperature, how many above the upper limit temperature, how many above the extreme temperature. A method for monitoring a railway vehicle, comprising: providing a display screen for displaying axle temperature distributions for displaying individual numbers as numbers.
    [11" claim-type="Currently amended] The method of claim 9, wherein the wheel wear monitoring of the balance state monitoring mode,
    In order to measure the diameter of each wheel, one of the four wheels included in one truck is equipped with a speed sensor, and after driving a certain section, the speed of the wheel is detected and the driving distance and the speed are used. After calculating the circumferential length of the wheel, using this data, the diameter of the wheel is finally detected and displayed on the screen.
    The minimum allowable diameter and the maximum allowable diameter of the wheel are set in advance, and the diameter of the detected wheel is compared and judged. The value is less than the minimum value is abnormal, the value is normal between the minimum value and the maximum value, and the abnormal value is abnormal. Monitoring method of a railway vehicle, characterized in that the display.
    [12" claim-type="Currently amended] The balance crack monitoring of the balance state monitoring mode according to claim 9, wherein
    The thin film pattern is attached to the area where the crack of the truck is concerned, and the crack of each truck is detected by the crack detection of the truck by the impedance change of the thin film pattern and the crack detection of the truck detected by the ultrasonic sensor. The display lamp is displayed on the screen according to the picture of the vehicle with the balance indication of the vehicle, and in the case of normal, the display lamp is displayed in green, and in case of abnormality, it is displayed in red so that the driver can grasp the state of all vehicles at a glance. How to monitor your vehicle.
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    同族专利:
    公开号 | 公开日
    KR100288748B1|2001-04-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1999-03-03|Application filed by 구자영, 케이티전기 주식회사
    1999-03-03|Priority to KR1019990006829A
    2000-10-05|Publication of KR20000059333A
    2001-04-16|Application granted
    2001-04-16|Publication of KR100288748B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019990006829A|KR100288748B1|1999-03-03|1999-03-03|A monitering system and method of a railway vehicle|
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