• 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:
    A method for simulating the real-time delivery, to an avionics equipment (24), of data on an aircraft aircraft system comprising receiving the simulation data and providing the simulated data to the avionics equipment (24).
    公开号:FR3022655A1
    申请号:FR1555618
    申请日:2015-06-19
    公开日:2015-12-25
    发明作者:Stephen Dabrowski
    申请人:GE Aviation Systems LLC；
    IPC主号:
    专利说明:

    [0001] 1 Method for Simulating the Real-Time Delivery to Aircraft Equipment of Aircraft System Data Aircraft avionics systems may include a plurality of apparatus for operating an aircraft. For example, data generation equipment, such as Global Positioning System (GPS), Inertial Reference Sensors (INU), Communication Devices (ACARS) and driver-accessible control panels, can produce data. or data signals (collectively referred to as "data") for a computer system such as a flight management system (SGS). The VMS also calculates or processes the data to control certain operations or systems of the aircraft such as the autopilot, or to provide a pilot with relevant information on the operation of the aircraft, including providing a flight plan. flight and / or a heading or by commanding a main flight screen. In one aspect, there is provided a method for simulating the real-time delivery of data to an aircraft system to avionics equipment of an aircraft. The method comprises receiving a request from the user to enter real-time data relating to an aircraft on-board circuit, extracting data streams corresponding to the user's request. in a database of previously recorded real-time data streams, synchronizing the received data streams and delivering the synchronized data streams as input data for the avionics equipment.
    [0002] The invention will be better understood from the detailed study of some embodiments taken by way of nonlimiting examples and illustrated by the appended drawings in which: FIG. 1 is a schematic view of an avionic equipment for aircraft; FIG. 2 is a diagrammatic view of avionic equipment provided with an avionic simulation device according to one embodiment of the invention; FIG. 3 is a schematic view of the avionic simulation device according to one embodiment of the present invention; and FIG. 4 is a flowchart illustrating an operation of the avionic simulation device. Embodiments of the invention may be implemented in any environment simulating a plurality of data streams for use as single or plural input data for a computing and / or control system. Although the present disclosure relates primarily to the environment of an aircraft and / or avionics system, embodiments of the invention are applicable in any environment using a machine in which a plurality of input data is provided. are provided to a data receiving equipment. Thus, a brief overview of the envisioned environment should facilitate a more complete understanding.
    [0003] Modern aircraft are equipped with avionics systems or equipment for performing individual or circuit functions for the aircraft in response to supplies of data signals and / or data inputs (collectively referred to as "input data streams" ) generated by sensors, pilot accessible controls and / or additional avionics equipment. Among sources creating data, non-limiting examples may be given of at least one of a reference inertial device, a global positioning system (GPS), an inertial reference sensor 5 (INU), a several aircraft (ACARS), an aerial data center, instrument landing systems, navigation systems, distance measuring equipment systems, or selectable instructions on control panels such as only pilot-controlled model control boards or display control boards. Control panels controlled by the pilot may include, for example, buttons, keys, mice, touch screens, etc. to receive instructions entered by the pilot. In this sense, the input data streams can respectively represent at least one of reference inertial data, global positioning system data, anemobarometric data center data, aerial data, data of the data system, instrument landing, navigation data, data measuring equipment data or selectable data on the control boards. Other non-limiting examples of additional avionics systems or equipment include communication systems, navigation systems, display and management systems, collision avoidance systems, meteorological radars, and even surveillance systems. of state and use of the material. An example of avionics equipment is the flight management system (SGV). SGV is a specialized computer system that automates all kinds of flying tasks, reducing the workload of the pilots and / or the 3022655 4 crew. The VMS can calculate and / or process flight plan data, flight path creation, waypoint speed profiles, and other aspects of flight plan development. response to received input data extracted from input data streams. The VMS can also control one or more interfaces to display the resulting functions that are performed by the VMS, including the Main Flight Screen (EVP), a command display device, and / or a navigation screen, each 10 of them can be in the cockpit. For example, the EVP uses input data, VMS, and / or other avionics to accurately measure elevation, anemometry, rate of climb, and other measurements using survey data. atmospheric pressure and barometry, which are presented to the pilot by display in a readable format. Like many screens, these interfaces may be constructed around a liquid crystal display or cathode ray display device and may have additional input means, controlled by the pilot, such as buttons, buttons, knobs or pointing devices such as a mouse, to interact with the interface and / or the SGV. Figure 1 shows a schematic view of an avionics system 10 for use in an aircraft. As shown, one or more input means for aircraft equipment or input means for creating input data 12, comprising as shown a GPS device 14, an overhead data center 16, an aircraft equipment device, The distance measurement 18 and a display control panel 20 generate input data that can be supplied to an avionics data bus 22. In this sense, the data acquisition means 12 for creating data can provide the data. in real time to the data bus 22 a plurality of input data streams 13, or "channels" of input data. The data bus 22 may, in turn, provide the input data to another avionics system equipment such as a flight management system (SGS) 24. In the illustrated example, the SGV 24 performs calculations on and / or processing the input data, which are then provided to one or more additional avionics systems, equipment and / or interfaces, represented as the control display device 26, of the EVP 28 and the navigation screen 30. Additional input means 12 for the creation of data and additional equipment and / or avionics interfaces may be present, since the equipment shown are only non-limiting examples of this equipment.
    [0004] The avionic data bus 22 may include one or more routing or switching components for providing the data streams 13 to the SGV 24. In this sense, embodiments of the avionics data bus 22 may include systems and or interfaces capable of transmitting analog and / or digital data streams 13 via a network bus interface. Ethernet may be a non-limiting example of interface support for transmitting the data trains 13. An additional transmission medium may be present. In another example, the data bus 22 may comprise members adapted, for example, to convert an analog signal into a digital signal to be transmitted, or vice versa. The data bus 22 may also operate according to a series of industry or regulatory standards. ARINC 429 and ARINC 664 may be non-limiting examples of standards for the operation of data bus 22.
    [0005] The embodiment illustrated in Figure 1 can be used to operate in an aircraft the described avionics system; however, there may be other operating environments. For example, for purposes of development, testing, maintenance, etc., it may be advantageous to install such an avionics system 10 in a setting other than aeronautics, such as a test laboratory. point or tests. However, reproducing in such an environment the operation of the illustrated avionics system 10 raises particular difficulties in providing access to input means 12 for creating data capable of creating the data streams 13, due to the lack of exposure of input means 12 to operating environments such as those of aircraft, including high altitude, high temperatures, high wind speeds, etc.
    [0006] European Patent EP769465 ("the '465 patent") describes a random access recording method for recording and reading avionics data for a similar avionics system, in which, for example, the data streams 13 of the input means 12 for the creation of data are recorded and stored as a plurality of data files in similar or different formats, arranged in chronological order. In addition to recording and storing the plurality of data streams, the '465 patent proposes storing a pointer file based on separate delays to create a time-based recorded index for the plurality of data streams. stored data streams, so that a particular (non-initial) reading time can be selected during reading of the stored data, and the recorded time index can be used to correspond to a common delay for the stored data streams, and allows the consultation of the 30 stored data streams according to this particular reading time. In this sense, the '465 patent proposes means for using an avionics system 10 in an aircraft, during flight maneuvers, in order to record and memorize the data streams 13 of the input means 12 for the creation of data, 5 in an orderly way in time and in real time, for a later reading. FIG. 2 shows another avionics system 110 for simulating the real-time delivery, to a real or simulated avionics equipment such as SGV 24, of data on an on-board system from one or more data files. saved and stored. The present embodiment is similar to the avionics system 10 of Figure 1; therefore, the like parts will be designated by the same numbers increased by 100, it being understood that, unless otherwise stated, the description of the like parts of Fig. 1 is for the embodiment according to Fig. 2. As shown, a device memory 132 provides one or more input data to a reader device 142 which, in turn, provides one or more simulated data streams 113 to the avionics data bus 22 and / or the avionics equipment, which present in the form of the SGV 24. The reading device 142 further receives from a user interface 146 at least one instruction entered by the user. The storage device 132 may comprise a memory 134 such as a random access memory (RAM), a read only memory (ROM), a flash memory or one or more types of portable electronic memories such as disks, DVDs, CDs ROM, etc., or any suitable combination of these types of memories, for storing pre-recorded, chronologically sorted, real-time recorded avionic data 136, such as the data streams 13 of Figure 1. On 3022655 8 may include non-limiting examples of the avionics data 136 one or more data files stored in a hierarchical file system format or in a database format. Additional storage systems and / or formats may be included. The storage device 132 as shown further comprises a control unit 138 designed to view the avionics data 136 and create a plurality of data channels 140 from the avionics data 136, each channel 140 having a relationship with each other. chronological order with a corresponding data stream 113. The different channels 140 are then supplied to the reading device 142. The control unit 138 may, for example, read, consult or extract one or more of the recorded avionics data 136, stored in the memory 134, and distributing the data 136 between the different channels 140. In addition to the plurality of channels 140, the control unit 138 can read, consult or extract the recorded time index 141 described above, concerning the avionics data. recorded 136, and provide the recorded time index 141 to the reading device 142, with the plurality of channels 140. Although In the case of the recorded time index 141, embodiments of the invention may include reading, accessing, or retrieving only a portion of the recorded time index 141 or, for example, routing. of information from the index 141 to the reading device 142 corresponding to the avionics data 136 and / or the plurality of channels 140 extracted (es). Alternatively, embodiments of the invention may include the distribution, by the controller 138, of the stored features and / or information in the recorded time index 141 in a single channel or between of the different channels 140. Although a plurality of channels 140 are provided which provide the reader device 142 with a single channel in parallel for each distributed data channel 136, embodiments of the invention may have no more than a physical connection, for example a single Ethernet connection, for supplying the plurality of channels 140 to the reader device 142. The reading device 142, as shown, comprises at least one read control unit 144, each read control unit 144 receiving at least one channel 140 in addition to the recorded time index 141 and simulates, provides and / or converts each channel 140 of avionics data. The read control unit 144 may also be connected to any other control units of the reading device 142 of the aircraft collecting data. Data and, for example, may include a memory containing executable program code, and one or more processors, which may execute any appropriate programs stored in or out of memory. The user interface 146 may be any interface device for entering one or more data entered by the user, or user requests 148, for controlling the operation and / or reading of the reading device 142 and / or or avionics system 110. Non-limiting examples of user interface devices include buttons, keys, touch screens, computer user interfaces and / or a computer mouse. In one embodiment, the user may have a user interface 146 with a graphical timeline showing stored avionics data in chronological order. The user can interact with the user interface 146 to generate the user request 148, which is provided to the reader 142.
    [0007] In an example of a user request 148, a user may include the selection of one or more available data channels and / or data streams 113 from which the user wishes it to be (1). (s) is / are provided to the SGV 24. In this example, the user request 148 supplied to the reader device 142 may use the control unit 144 to, for example, control those of the channels 140 which are provided to the reader device 142, via a control signal 150, supplied to the storage device 132. Alternatively, the storage device 132 may provide all the available data channels 140 and the device 142, in response to the request 148 of the user, can intervene only on the channels 140 corresponding to the selected channels of the user request 148. In another example of a user request 148, a user may wish to move the reading of the data channels 140 and / or the data streams 113, for example, to a different time from the initial time or to a non-real time. sequential to the current reading, in particular by returning, from a time different from the initial time, to the beginning of the recorded avionics data 136. In the present example, the user request 148 supplied to the The reader 142 may use the control unit 144 to, for example, control the storage device 132, via the control signal 150, and the reading device 142, in order to stop the current extraction of the data. avionics data 136, and start a new avionics data retrieval 136 corresponding to the instant of user request 148 selected by the user. In yet another example of a user request 148, a user may wish to increase or decrease the read rate of data channels 140 and / or data streams 113 to arrive, for example, at a real time speed, a speed greater than real-time (eg a double speed) or smaller than real-time (eg a speed reduced by half). Speeds, time steps, a stop time, a playing time, a reading direction (eg advancing in time or falling back in time), and / or variable step increments additional time, selectable by the user, may be included. In the present example, the user request 148 supplied to the reader device 142 may use the control unit 144 to, for example, control the storage device 132, via the control signal 150, and the reading device 142, to realize the different channels 140 and / or trains 113 of data at the selected reading speed. The read control unit 144 may further manipulate data received by each respective channel 140, based on information received in the recorded time index 141. For example, the recorded time index 141 may inform the unit. During recording, 10 bytes of data were recorded every 80 microseconds for a particular channel. In this example, the read control unit 144 can divide the received data on that particular channel into 10-byte portions before supplying the input data to the avionics data bus 22 and / or the SGV 24. In this example, In this sense, the data stream 113 for that particular channel may not be a continuous data stream, but rather a stream of 3022655 12 byte data pieces resulting from division, provided every 80 microseconds. Although an example has been described with 10 bytes of data recorded every 80 microseconds, embodiments of the invention may include data streams containing different amounts of data, different timing requirements, or even actual continuous trains of data transmitted without interruption. Other embodiments of the invention may include separating different channels 140 in one or more corresponding read control units 144 based on common characteristics of recorded data or common values of recorded time indices 141. By For example, all channels 140 that provide data every 80 microseconds can be processed by a first read command unit 144, while all channels 140 that provide data every 20 microseconds can be processed by a second read unit 144. 144. In this sense, the different read control units 144 may be specifically designed to support some data trains 113 based on inter-processor load sharing, cycle time, and / or the rift or temporal resolution of the data (eg number, frequency). In the present example, each read control unit 144 can process at least one or more channels 140.
    [0008] Furthermore, each read control unit 144 receives the recorded time index 141, at least one channel 140 and the request 148 from the user and seeks to synchronize the simulated delivery of the data streams to the avionics data bus 22 and or at SGV 24 depending on the rate of previously recorded real-time avionics data trains. In other words, the read control unit 144 seeks to faithfully recreate and / or simulate the recorded avionics data streams by supplying the recorded data streams to the data bus 22 and / or the SGV 24 in accordance with the rate of the data streams. 5 original recorded data streams. Embodiments of the invention have the technical effect that the reading device 142 can provide the simulated data streams, from a real data stream record, to one or more avionics equipment, the supply being synchronized with the original registration. In this sense, a realistic simulation process of real-time data from an on-board system to an avionics equipment can be implemented in a context other than aeronautics, for example in the context of an implementation laboratory. at the point or tests. On the other hand, the same recorded data can be simulated repeatedly during testing or development of avionics equipment. The synchronization can be effected, for example, by channel 140 or by data train 113. In another example, synchronization may be by read control unit 144, with the channels being separated as explained above. Referring now to FIG. 3, the reader device 142 will be described in more detail. Each data train 113 is provided by the reader device 142 and / or the read control unit 144 may comprise an interface 152 comprising buffer 154. The interface 152 may comprise physical components, for example an Ethernet port, a twisted wired connection or other communication interfaces, necessary (for example) for ARINC 429, or may comprise a software implementation of interface, including forming 30 packets for another connection. The buffer 154 may be designed to contain a portion of a data stream 113, which may be transmitted, for example, according to a signal or a control program. In one example, the buffer 154 may be sized according to the demand (eg size and throughput) of data streams 113 of each corresponding channel and operate on a first-in, first-out basis. Also as shown, each control unit 144 may further comprise a corresponding timing feedback loop 156 including a clock 158, a scheduler 160 and the read control unit 144. The synchronization feedback loop 156 may, by For example, receiving from the control unit 144 a "send" instant value comprising a first portion of information corresponding to the actual rate of delivery of a portion of the data stream 113 to the avionics data bus 22. or the transmission thereof by the interface 152. The sending instant value may also include a second piece of information from the registered time index 141 and corresponding to a time stamp of the record of this part of the data train 113.
    [0009] The scheduler 160 may receive from the clock 158 the two pieces of information of the send time value, in addition to a current time value, and determine, calculate or estimate an inherent delay of the device. In other words, the processing by the read control unit 144 and / or the provision of the data stream 113 via the interface 152 may introduce an unexpected delay preventing a fidelity of the data. real-time simulation against recorded avionics data. The synchronization feedback loop 156 seeks to further synchronize the delivery of the data train 113 taking into account this delay, for example by scheduling (using the scheduler 160) the provision of the data train 113. depending on the delay. For example, if the scheduler 160 determines that the actual rate of delivery is 5 microseconds slower than it should be, as determined from a relative cadence of the clock 158 and a rate relative to the recorded time index 141, the scheduler 160 may "program" or cause the read control unit 144 to "program" the delivery of the respective data stream 10 to occur. microseconds earlier than, otherwise, it would have provided the 113 train of data. As with the synchronization described above, synchronization by the feedback loop 156 may be by channel 140, by data stream 113, by channel groups 140, or by data streams 113 or by read control unit 144. Although a clock 158 is described, embodiments of the invention may include the use of another clock reading for synchronization by the feedback loop 156, for example using a GPS clock.
    [0010] Fig. 4 shows an exemplary flowchart illustrating an embodiment of the invention. The method assumes that real-time data streams relating to a previous flight have already been recorded and stored in an accessible format, usable by the method, as described above. The method begins with step 200. A user may optionally present a user request in step 210. The user's request 210 may contain a simulation start and / or read instant, an instant stop, a read speed, a read direction (forward in time or backward in time), step increments, etc., as explained above. The request of the user during step 210 may also contain a recorded time index 215, as explained above. In step 220, the method retrieves the recorded avionics data 230, in accordance with the user request of step 210. In step 240, the reading device can allocate and process the channel data, according to the recorded time index 215 and / or the user request of step 210. In step 250, the reading device synchronizes the data stream in accordance with the recorded time index and / or the user request of step 210. In optional step 260, the synchronization feedback loop may perform additional programming to accommodate other possible synchronization issues. Finally, in step 270, the reading device supplies the data stream to the avionics equipment according to timing and program. The order of the steps mentioned is only indicative and is not intended to limit the process, it being understood that the steps may follow one another in a different logical order or that additional or intermediate steps may be included in the output of the process. frame of the embodiments of the invention. Many other possible embodiments and configurations, in addition to that illustrated in the figures described above are contemplated by the present invention. For example, one embodiment of the invention contemplates the distribution of the recorded avionics data 136 between the different channels 140 in the reading device 142. In addition, the design and arrangement of the various members can be rearranged in such a way that a number of online configurations can be realized.
    [0011] The embodiments described herein provide a method for simulating the real-time provision, to avionic equipment, of recorded avionics data relating to an aircraft on-board system. The embodiments described above have the technical effect of allowing repeated call-up of recorded avionics data which creates a signal environment identical to that experienced by avionics during the acquisition process. An achievable advantage in the above embodiments is that the embodiments described above make it possible to test the hardware and / or the software, especially during hardware simulation of the loop, which requires electrical signals necessary for operate avionics equipment to be tested as if it were installed to operate in full scale. In some cases, to provide these electrical signals, specific equipment is needed whose cost is prohibitive. In addition, laboratories with specific equipment may be limited in number and / or availability. Thus, by virtue of the embodiments of the invention, expensive specific hardware can not be dispensed with to provide the data, resulting in a sharp decrease in hardware cost for loop simulations. For example, a low-cost host computer and commercially available avionics interface cards may be able to simulate a functionality similar to that of the specific hardware.
    [0012] Another advantage is achievable by the embodiments described above in the repeat testing procedure, since the embodiments can be used to continually simulate the same data deliveries without errors and with repeated real-time fidelity during each simulation. This allows for simpler and more accurate regression tests, for example in the context of a laboratory or debugging. Insofar as this is not already described, the various details and structures of the various embodiments can be used at will in combination with each other. The fact that a detail may not be included in all of the embodiments should not be interpreted to mean that it can not, since the purpose is the brevity of the description. Thus, the various details of different embodiments can be mixed and adapted as desired to create new embodiments, whether or not the new embodiments are expressly described. All combinations or permutations of details described herein are covered by this disclosure.
    [0013] 3022655 Marker List 19 10 Avionics System 142 Read Device 12 Input Devices for Data Creation 144 Read Control Unit 13 Data Trains 146 User Interface 14 Global System Device 148 Location User Request 16 Central Station Aerial Data 18 Distance Measuring Equipment Device 20 Display Control Panel 22 Avionics Data Bus 24 Flight Management System 26 Command Display Device 28 Main Flight Screen 150 Command Signal 152 Interface 154 Buffer Memory 156 Synchronization Feedback Loop 158 Clock 160 Scheduler 200 Start Process 210 User Request 3022655 30 Navigation Screen 113 Data Trains 20 220 Extraction Step 230 Recorded Avionics 132 Storage Device 240 Dispatch and Process Step 134 Memory 250 Synchronization step of 136 Data avionics data train registered 138 Control unit 140 Channel 141 Registered time index 260 Provisioning step 270 Data transmission step
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. A method for simulating the real-time delivery to an avionics equipment (24) of data on an aircraft on-board system, the method comprising: receiving a request (146) from the user for the provision of real-time data on an onboard system; extracting data streams (140) corresponding to the user's request (146) from a previously recorded real-time data stream database (132); synchronizing the extracted data streams (140); and providing the synchronized data streams (113) the avionics equipment (24).
    [0002]
    The method of claim 1, wherein the request (146) of the user contains a read rate and the supply of the synchronized data streams (113) is at the read speed.
    [0003]
    3. The method of claim 2, wherein the playback speed is equal to the real time and / or slower than real time and / or faster than real time.
    [0004]
    The method of claim 1, wherein the data trains (140) comprise data trains (140) representative of at least one of reference inertial data, global positioning system data, overhead data , instrument landing system data, navigation data, distance measurement equipment data, and selectable control panel data.
    [0005]
    The method of claim 1, wherein the avionic equipment (24) comprises a flight management system and / or a control display device and / or a main flight screen and / or a flight display screen. navigation.
    [0006]
    The method of claim 1, wherein the providing further comprises providing the synchronized data streams (113) via an ARINC compliant interface 429.
    [0007]
    The method of claim 1, further comprising extracting, from the previously recorded data stream database (132), a recorded time index (141) corresponding to the data streams (140). 10
    [0008]
    The method of claim 7, further comprising synchronizing the extracted data stream (140) in accordance with the recorded time index (141).
    [0009]
    The method of claim 8, wherein the synchronizing further comprises programming to provide the synchronized data streams (113).
    [0010]
    The method of claim 9, wherein the delivery is according to the program.
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    优先权:
    申请号 | 申请日 | 专利标题
    US14/311,436|US9482552B2|2014-06-23|2014-06-23|Method of simulating a real-time aircraft system input to an avionics component|
    US14/311436|2014-06-23|
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