An OBU anti-disassembly device and anti-disassembly method in an ETC system

Abstract

The present invention discloses an OBU anti-disassembly device and an anti-disassembly method in an ETC system, wherein the anti-disassembly device comprises an OBU device, a connecting wire harness and a vehicle-end interface, one end of the connecting wire harness is connected to the OBU device, the other end of the connecting wire harness is connected to the vehicle-end interface, the vehicle-end interface is provided with a hidden PIN short-circuit mechanism, and a wire harness interface verification module is provided in the OBU device, and the wire harness interface verification module is used to match and verify the vehicle-end interface connected to the OBU device. The effect is achieved as follows: by setting the wire harness mechanism for anti-disassembly, it is possible to quickly determine whether disassembly and misappropriation between different vehicle models occurs; by using Bluetooth anti-disassembly, it is possible to further accurately detect whether disassembly and misappropriation between the same vehicle model occurs, thereby realizing the anti-disassembly function of the front-mounted OBU.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle accessories, in particular to an OBU anti-dismantling device in an ETC system, and also to an OBU anti-dismantling method in the ETC system. Background Art

[0002] According to regulations, the OBU device of the ETC system must have an anti-dismantling function to prevent vehicle owners from dismantling it and using it on other vehicles.

[0003] The ETC OBU (OBU for short) currently on the market are all after-market devices, powered by built-in batteries and solar charging; OBU is usually installed on the car windshield, and there is a physical anti-dismantling button on the back of the body; after the OBU is installed and activated, the button will remain pressed; if it is removed from the car windshield, the button will pop out, the circuit will detect that the button has popped out, and the OBU will become invalid due to being disassembled.

[0004] However, the pre-installed OBU device draws power directly from the vehicle. After unplugging the power cord, the OBU will be powered off as a whole. After the overall power is cut off, the circuit will no longer work and the button pop-up cannot be detected. Therefore, the old method is no longer effective. After the OBU is transferred to other vehicles, as long as the button is restored to the pressed state before power is restored, the removal event cannot be recognized and the OBU can still work normally.

[0005] In addition, the anti-tampering button method of cracking is also quite common. There are even related equipment for sale on Taobao, but it is not very anti-tampering. Summary of the invention

[0006] To this end, the present invention provides an OBU anti-dismantling device in an ETC system to solve the problem of poor anti-dismantling performance of the front-mounted OBU equipment in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] According to the first aspect of the present invention, an OBU anti-disassembly device in an ETC system includes an OBU device, a connecting wire harness and a vehicle-end interface, one end of the connecting wire harness is connected to the OBU device, and the other end of the connecting wire harness is connected to the vehicle-end interface, the vehicle-end interface is provided with a hidden PIN short-circuiting mechanism, and a wire harness interface verification module is provided in the OBU device, and the wire harness interface verification module is used to perform matching verification on the vehicle-end interface connected to the OBU device.

[0009] Furthermore, the OBU device also includes a Bluetooth address storage module, and the Bluetooth address storage module is used to store the vehicle Bluetooth MAC address of the original vehicle.

[0010] Furthermore, the OBU device also includes a Bluetooth address verification module, which is used to verify whether the vehicle Bluetooth MAC address of the vehicle to which the OBU device is connected is the vehicle Bluetooth MAC address of the original vehicle, and data encryption protection is performed during the verification process.

[0011] Furthermore, the OBU device also includes a time setting module, and the time setting module is used to set the detection time threshold of the Bluetooth address verification module.

[0012] Furthermore, the OBU device also includes a time verification module, and the time verification module is used to determine whether the search verification time of the Bluetooth address verification module exceeds a detection time threshold.

[0013] Furthermore, it also includes a battery, and the OBU device is electrically connected to the battery.

[0014] Furthermore, the OBU device also includes an alarm module, and the alarm module is used to issue an alarm reminder when it is detected that the OBU device is disassembled.

[0015] Furthermore, the alarm module is a buzzer.

[0016] Furthermore, the OBU device also includes a wireless transmission module, and the wireless transmission module is used to transmit the detection result information to a remote terminal.

[0017] Furthermore, the remote terminal is a mobile phone terminal.

[0018] According to a second aspect of the present invention, an OBU anti-disassembly method in an ETC system comprises the following steps:

[0019] Step S100: a hidden PIN short-circuit mechanism is provided at the vehicle-side interface, and the vehicle Bluetooth MAC address information is pre-written into the OBU device;

[0020] Step S200, check the wiring harness interface mechanism. If the check fails, it is determined to be disassembled. If the check passes, execute step S300.

[0021] Furthermore, the method further includes step S300, verifying the vehicle Bluetooth MAC address of the current vehicle. If the verification fails, it is determined that the vehicle has been disassembled. If the verification passes, step S400 is executed.

[0022] Furthermore, the method further includes step S400, setting a detection time threshold;

[0023] Step S500: determine whether the Bluetooth search time exceeds the detection time threshold. If so, it is determined that the device has been disassembled. If a Bluetooth match can be found, it is determined that the device has not been disassembled.

[0024] The present invention has the following advantages:

[0025] 1. By setting the anti-disassembly function of the wiring harness mechanism, it is possible to quickly determine whether disassembly or misappropriation occurs between different models;

[0026] 2. Through Bluetooth anti-disassembly, it can further accurately detect whether there is disassembly and misappropriation between the same models;

[0027] 3. It can cope with the situation that the OBU is powered off as a whole. When the OBU is powered off as a whole, there is no battery inside, which is safer to use in a high-temperature direct environment, and the anti-tampering function is not affected;

[0028] 4. If the OBU is powered off due to a simple battery failure or maintenance, it will not be identified as disassembled and will not affect the normal battery maintenance and power supply needs;

[0029] 5. Through the wiring harness mechanism and Bluetooth verification, the anti-dismantling function of the front-mounted OBU is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0031] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0032] Figure 1 A structural diagram of an OBU anti-dismantling device in an ETC system provided for some embodiments of the present invention.

[0033] Figure 2 A structural diagram of an OBU anti-dismantling device in an ETC system provided for some embodiments of the present invention.

[0034] Figure 3 A circuit diagram of an OBU anti-dismantling device in an ETC system provided in some embodiments of the present invention.

[0035] Figure 4 A flowchart of an OBU anti-dismantling method in an ETC system provided in some embodiments of the present invention.

[0036] Figure 5 A Bluetooth anti-tampering principle diagram of an OBU anti-tampering method in an ETC system provided in some embodiments of the present invention.

[0037] In the figure: 100, OBU equipment, 101, Bluetooth address storage module, 102, wiring harness interface verification module, 103, Bluetooth address verification module, 104, time setting module, 105, time verification module, 200, connecting wiring harness, 300, vehicle end interface. DETAILED DESCRIPTION

[0038] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1

[0040] like Figures 1 to 3 As shown, an OBU anti-disassembly device in an ETC system in this embodiment includes an OBU device 100, a connecting harness 200 and a vehicle-end interface 300, one end of the connecting harness 200 is connected to the OBU device 100, and the other end of the connecting harness 200 is connected to the vehicle-end interface 300, the vehicle-end interface 300 is provided with a hidden PIN short-circuit mechanism, and a harness interface verification module 102 is provided in the OBU device 100, and the harness interface verification module 102 is used to perform matching verification on the vehicle-end interface 300 connected to the OBU device 100.

[0041] The technical effects achieved by this embodiment are as follows: by setting up the wiring harness mechanism for anti-dismantling, it is possible to quickly determine whether disassembly and misappropriation between different vehicle models occurs; it can cope with the situation where the OBU is powered off as a whole. When the OBU is powered off as a whole, the internal battery may not be contained, and it is safer to use in a high-temperature direct sunlight environment, and the anti-dismantling function is not affected; the OBU power outage caused by a simple battery failure or maintenance will not be identified as disassembled, and will not affect the normal battery maintenance and power feeding needs.

[0042] Example 2

[0043] like Figures 1 to 3As shown, an OBU anti-dismantling device in an ETC system in the present embodiment includes all the technical features in Example 1. In addition, the OBU device 100 also includes a Bluetooth address storage module 101, and the Bluetooth address storage module 101 is used to store the vehicle Bluetooth MAC address of the original vehicle; the OBU device 100 also includes a Bluetooth address verification module 103, and the Bluetooth address verification module 103 is used to verify whether the vehicle Bluetooth MAC address of the vehicle to which the OBU device 100 is connected is the vehicle Bluetooth MAC address of the original vehicle, and data encryption protection is performed during the verification process.

[0044] The beneficial effects of this embodiment are: through Bluetooth anti-dismantling, it is possible to further accurately detect whether disassembly and misappropriation between the same models occurs; through the wiring harness mechanism and Bluetooth verification, the anti-dismantling function of the front-mounted OBU is realized.

[0045] Example 3

[0046] like Figures 1 to 3 As shown, an OBU anti-disassembly device in an ETC system in this embodiment includes all the technical features in Example 2. In addition, the OBU device 100 also includes a time setting module 104, and the time setting module 104 is used to set the detection time threshold of the Bluetooth address verification module 103; the OBU device 100 also includes a time verification module 105, and the time verification module 105 is used to determine whether the search verification time of the Bluetooth address verification module 103 exceeds the detection time threshold; by setting the time verification module 105, the power loss caused by the failure to detect Bluetooth matching for a long time is avoided.

[0047] Optionally, a battery is also included, and the OBU device 100 is electrically connected to the battery. By providing the battery, continuous endurance is provided for Bluetooth detection; in addition, those skilled in the art should know that the battery may not be provided.

[0048] Optionally, the OBU device 100 further includes an alarm module, which is used to send out an alarm reminder when it is detected that the OBU device 100 is disassembled, thereby realizing an anti-disassembly alarm function.

[0049] Optionally, the alarm module is a buzzer.

[0050] Optionally, the OBU device also includes a wireless transmission module, which is used to transmit the detection result information to a remote terminal, thereby realizing long-distance transmission of the detection result.

[0051] Optionally, the remote terminal is a mobile phone terminal, thereby realizing remote viewing.

[0052] Example 4

[0053] like Figures 4 to 5As shown, an OBU anti-disassembly method in an ETC system in this embodiment includes the following steps: step S100, a hidden PIN short-circuit mechanism is set at the vehicle-end interface, and the vehicle's vehicle Bluetooth MAC address information is pre-written into the OBU device; step S200, a wiring harness interface mechanism check is performed, if the test fails, it is judged to have been disassembled, if the test passes, step S300 is executed.

[0054] The technical effect achieved by this embodiment is: through the above steps, the wiring harness interface mechanism detection and judgment function is realized.

[0055] Example 5

[0056] like Figure 4 and Figure 5 As shown, an OBU anti-dismantling method in an ETC system in the present embodiment includes all the technical features in Example 4, and in addition, also includes step S300, verifying the vehicle Bluetooth MAC address of the current vehicle, if the verification fails, it is judged to be disassembled, if the verification passes, execute step S400; also includes step S400, setting a detection time threshold; step S500, judging whether the Bluetooth search time exceeds the detection time threshold, if it exceeds the detection time threshold, it is judged to be disassembled, if a Bluetooth match can be searched, it is judged to be not disassembled.

[0057] The beneficial effects of this embodiment are: the Bluetooth verification function is realized through the above steps, and in addition, the timeout detection function is also realized.

[0058] The specific working process is as follows: an anti-disassembly mechanism is set in the vehicle-side interface 300 of the power supply harness of the OBU device 100, and two PINs in the vehicle-side interface 300 are short-circuited together and hidden in an invisible area in the car. At this time, it is considered that the device has not been disassembled and can be used normally, and ordinary car owners do not know the mechanism; before the OBU device 100 is officially activated and used, the vehicle-mounted Bluetooth MAC address of the corresponding vehicle will be pre-written as a unique identification mark; during use, first detect whether the OBU device 100 is disassembled and misappropriated between different models. If the vehicle cannot provide a harness interface with the same mechanism, the two PINs are no longer short-circuited, and it is identified as disassembled; if the harness interface mechanism is verified, then detect whether the OBU device 100 is disassembled and misappropriated between the same model, and the OBU device 100 will detect the Bluetooth MAC address of the current vehicle once; if the Bluetooth MAC address searched is inconsistent with the preset one, it is judged to be disassembled, and if it is consistent with the preset one, it is judged to be not disassembled; if the vehicle-mounted Bluetooth is not searched for a long time, the operation times out and it is judged to be disassembled.

[0059] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

[0060] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. An OBU anti-disassembly device in an ETC system, characterized in that: The invention comprises an OBU device (100), a connecting wire harness (200) and a vehicle-end interface (300), wherein one end of the connecting wire harness (200) is connected to the OBU device (100), and the other end of the connecting wire harness (200) is connected to the vehicle-end interface (300), and the vehicle-end interface (300) is provided with a hidden PIN short-circuit mechanism. The OBU device (100) is provided with a wire harness interface verification module (102), and the wire harness interface verification module (102) is used to perform matching verification on the vehicle-end interface (300) connected to the OBU device (100); The OBU device (100) further comprises a Bluetooth address storage module (101), wherein the Bluetooth address storage module (101) is used to store the Bluetooth MAC address of the original vehicle; The OBU device (100) further comprises a Bluetooth address verification module (103), wherein the Bluetooth address verification module (103) is used to verify whether the vehicle Bluetooth MAC address of the vehicle to which the OBU device (100) is connected is the vehicle Bluetooth MAC address of the original vehicle, and data encryption protection is performed during the verification process; The OBU device (100) further comprises a time setting module (104), wherein the time setting module (104) is used to set a detection time threshold of the Bluetooth address verification module (103); The OBU device (100) further comprises a time verification module (105), wherein the time verification module (105) is used to determine whether the search verification time of the Bluetooth address verification module (103) exceeds a detection time threshold; It also includes a battery, and the OBU device (100) is electrically connected to the battery.

2. The OBU anti-disassembly device in an ETC system according to claim 1, characterized in that: The OBU device (100) further comprises an alarm module, wherein the alarm module is used to issue an alarm reminder when detecting that the OBU device (100) is disassembled.

3. A method for preventing OBU from being dismantled in an ETC system, characterized in that: The following steps are involved: Step S100: A hidden PIN shorting mechanism is provided on the vehicle-side interface, and the vehicle's Bluetooth MAC address information is pre-written into the OBU device; Step S200: Check the wiring harness interface mechanism. If the test fails, it is determined that the wiring harness has been disassembled. If the test passes, step S300 is executed. The method also includes step S300, verifying the Bluetooth MAC address of the current vehicle. If the verification fails, it is determined that the vehicle has been disassembled. If the verification passes, step S400 is executed. The method further includes step S400, setting a detection time threshold; Step S500: Determine whether the Bluetooth search time exceeds the detection time threshold. If so, it is determined that the device has been disassembled. If a Bluetooth match can be found, it is determined that the device has not been disassembled.

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