• 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:
    System and method of detection of fluid theft in tanks, detect the vibration of the deposit by means of a sensor (1) and the vibration of a structure related to the deposit, but different from the deposit, by means of a reference sensor (3), verifying (14) firstly if the vibration of the sensor (1) exceeds a predetermined stolen reference threshold level stored experimentally; in which case it is verified (15) whether the signal level of the sensor (1) exceeds the signal level of the reference vibration sensor (3), generating, when the verification (15) is carried out, an alarm signal (18) The alarm signals are sent to an alarm controller (4) in which all incidents are recorded even if the alarm controller has been uninhabited. It is applied in any installation of tanks, especially in vehicles. It avoids the generation of false alarms and detects possible theft by the driver. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2676741A1
    申请号:ES201730081
    申请日:2017-01-24
    公开日:2018-07-24
    发明作者:Antonio NO RODRIGUEZ
    申请人:Handfleet S L；Handfleet SL；
    IPC主号:
    专利说明:

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    of alarms can include a GPS (Global Position System) to detect the position of the vehicle at all times, so that it detects where each alarm signal has occurred, each alarm activation and the different incidents.
    Also, the alarm controller is configured to communicate with a system.
    5 remote in which the different data stored in said alarm controller is received and stored, so that the user is allowed to access the remote system from a web page, from which he can obtain the data of the different alarms generated in the processor.
    10 In accordance with all of the above, the data stored in the alarm controller allows you to establish which has been the deposit in which the alarm has been detected, with what intensity has occurred, that is, whether it has been a large or small vibration , and count the number of times and when the driver has opened the deposit so that the owner can compare it with the number of times the vehicle has refueled.
    In all the previous cases, and according to an embodiment of the invention, it is envisaged that when the circumstance occurs that the signal picked up by the vibration sensor exceeds the threshold value and that when the circumstance occurs that the signal detected by the vibration sensor exceeds the level of the signal detected by the sensor
    20 reference vibrations, these improvements must be produced in a percentage, previously established, for the alarm signal to be generated. In short, it is a question of verifying whether the vibration signal captured from the tank is related to the vibration signal captured from the structure related to the tank.
    The invention also relates to a new method of detecting theft of fluid in tanks comprising the following phases:
    -store at least one reference threshold, which has been previously obtained experimentally. This reference threshold corresponds to the vibration that is
    30 occurs in a tank when the theft of the fluid contained in said tank is stolen, as described for the system,
    -  detect the vibration of the tank using a vibration sensor,
    -  detect the vibration of a structure related to the deposit, but different from said deposit, by means of a reference vibration sensor,
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    present, and are configured according to the sensitivity that you want to give to the alarm.
    In accordance with the foregoing, the method of the invention provides that as the sensor
    (one) it detects vibrations (10), and the reference sensor (3) detects vibrations (12), the processor (2) checks if the motor is running or stopped and if it is started it performs a high-pass filtering (11 and 13) of the signals provided by the sensors (1 and 3) to eliminate the low frequencies produced by the motor to be able to focus on robbery attempts and access the stored thresholds corresponding to the state of the started motor and from them verify
    (14) if the vibration detected by the sensor (1) exceeds the thresholds stored for the engine started. In the same way in the case where the motor is stopped, the processor (2) does not filter (11 and 13) the vibrations obtained and directly verifies (14) if the threshold established for the case in which The engine is stopped. This functionality is performed by the processor (2) checking whether the amplitude and / or frequency measured, exceed the thresholds defined by the user, in which case it is indicative that the theft of the vehicle's fuel may be occurring, although it is not safe, since vibrations indicative of the existence of a robbery, they can also be caused by other causes, as indicated in the background of the invention.
    In the case where the threshold is exceeded, which may be indicative that there may be a fuel withdrawal from the tank, as described, and to avoid generating a false alarm, the processor (2) makes the comparison ( 15) of the vibrations received from the sensor (1) with the vibrations received from the reference sensor (3), by means of a differential comparator implemented in said processor (2). Next, it is verified (16) if the result of the comparison of the signal from the sensor (1) is greater than that of the reference sensor (3) and if so, a manipulation has occurred in the tank and is generated an alarm signal (18) sent to an alarm controller (4), since in the case of handling the tank, the vibrations that occur in it are greater than those transmitted to the rest of the vehicle. On the other hand, if the signal from the sensor (1) is of the same level or less than that of the reference sensor (3), it is detected that the vibrations produced in the tank are not due to its manipulation, but that it is a vibration produced in a place of the vehicle other than the deposit or outside the vehicle, as the deposit vibrates at a similar level
    or less than the rest of the vehicle and no alarm signal is generated (17). The alarm controller (4) can be integrated in the circuit or electronic card in which it is
    14


    arranged the processor. The invention provides that the alarm controller (4) can communicate with a remote system (5) to which the different detected alarms are sent, as will be described later.
    Figure 3 shows a possible signal form that the sensor (1) detects when refueling the tank, in which the peak (19) corresponds to the opening of the cap, reference (20) indicates the introduction of the refueling hose, the reference
    (21) the fuel load, the reference (22) the reference removed from the hose, the reference (23) the cap closure and the reference (24) the subsequent start of the vehicle. When the processor (2) detects the first threshold (19), according to the operation described above, it generates an alarm signal (18) that it sends to the alarm controller (4), in which said alarm is processed and managed.
    In the event that a perforation of the tank occurs, the signal captured by the sensor (1) far exceeds the stored thresholds and is also a level signal higher than the signal captured by the reference sensor (3), with that the processor (2) generates the alarm signal (18).
    The alarm controller (4) also allows two-way communication with the remote system (5). For this, both the alarm controller (4) and the remote system (5) are equipped with a GPRS (General Packet Radio Service) modem (not shown) or any other. This alarm controller (4) is also configured to allow the user to modify, via the web, the system parameters such as the alarm thresholds, previously mentioned.
    The invention provides that in one embodiment the alarm controller (4) is responsible for detecting the state of the engine: started or stopped. For this, for example, the vehicle contactor is connected to said communications processor (4) which, upon detecting the start signal, communicates it to the processor (2) so that it can perform the high-pass filtering (11 and 13) already mentioned.
    In addition, the processor (2) and alarm controller (4), comprise a communications module (not shown) that are configured to perform bidirectional communication between said processor (2) and the communications processor (4). This communication can be via serial, RS485, Bluetooth or other type.
    In the preferred embodiment of the invention it is envisioned that the alarm controller (4) is
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    According to the description made, the invention detects the intrusion before the thief has subtracted a single liter in any of the previous states, because as soon as the vibrations are detected, according to the description made the alarm is generated, which It is a great advantage over current systems.
    Another advantage is also that when the alarm is detected, together with the GPS position of the vehicle, it is possible to create a service that will notify the competent authorities close to the vehicle to act as soon as possible.
    The invention can be applied in any installation that has one or more fuel tanks, such as an agricultural installation, equivalent to that described for a vehicle. In this case the sensor (1) is located attached to the tank in an equivalent way as described for a vehicle, and the reference sensor (3) is arranged fixed in the tank frame. In this example, the operation described for the engine does not apply.
    The installation may include a plurality of deposits, so that if said deposits are supported in a common structure, for example supported on frames connected to each other, the incorporation of a single reference sensor (3) fixed to one of the frames is provided. , since the vibrations that occur are transmitted throughout the entire structure, so that the processor (2) first verifies (14) if the signals captured by the sensor (1) exceed the previously established thresholds and in If this is the case, perform the differential comparison (15) between the signal captured by the sensor (1) and the reference sensor (3), in the manner already explained, and if the signal captured by one or more of the sensors (1) is higher than the one detected by the reference sensor (3) generates the corresponding alarm signal (18) of fuel theft in the tank or tanks whose sensor (1) detects a signal higher than that of the sensor reference (3).
    In the case where the racks are independent, a reference sensor (3) attached to each rack is used, in this case, the processor (2) detects the manipulation of each tank independently of the way in which It was described for a single deposit.
    In an embodiment of the invention, for all the cases described, it is envisaged that when there is a circumstance that the signal picked up by the vibration sensor exceeds the threshold value and that when there is a circumstance that the signal detected by the sensor of vibrations exceeds the level of the signal detected by the vibration sensor of
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    权利要求:
    Claims (1)
    [1]
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    同族专利:
    公开号 | 公开日
    ES2676741B1|2019-04-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4547771A|1982-08-13|1985-10-15|A. W. Chesterton Company|Vibration sensor|
    GB2343283A|1998-10-28|2000-05-03|Robert William Wilkinson|A fuel tank alarm system|
    US20130181829A1|2006-09-13|2013-07-18|Florida Power & Light Company|System, method, and device for measuring and reporting changing levels of liquids in storage tanks|
    WO2010031531A1|2008-09-16|2010-03-25|Kenneth Mcfeeters|Anti-theft alarm for a liquid storage tank|
    GB2501679A|2012-04-23|2013-11-06|Stealth And Secure Ltd|Fuel theft surveillance system|
    法律状态:
    2018-07-24| BA2A| Patent application published|Ref document number: 2676741 Country of ref document: ES Kind code of ref document: A1 Effective date: 20180724 |
    2019-04-29| FG2A| Definitive protection|Ref document number: 2676741 Country of ref document: ES Kind code of ref document: B1 Effective date: 20190429 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201730081A|ES2676741B1|2017-01-24|2017-01-24|SYSTEM AND METHOD OF DETECTION OF FLUID OF FLUID IN DEPOSITS|ES201730081A| ES2676741B1|2017-01-24|2017-01-24|SYSTEM AND METHOD OF DETECTION OF FLUID OF FLUID IN DEPOSITS|
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