WO2020097862A1 - 一种基于车载监控设备的防拆检测系统 - Google Patents

一种基于车载监控设备的防拆检测系统 Download PDF

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Publication number
WO2020097862A1
WO2020097862A1 PCT/CN2018/115684 CN2018115684W WO2020097862A1 WO 2020097862 A1 WO2020097862 A1 WO 2020097862A1 CN 2018115684 W CN2018115684 W CN 2018115684W WO 2020097862 A1 WO2020097862 A1 WO 2020097862A1
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Prior art keywords
module
vehicle
cable
control module
main control
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PCT/CN2018/115684
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English (en)
French (fr)
Inventor
马鹏
范章华
张要星
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深圳市锐明技术股份有限公司
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Application filed by 深圳市锐明技术股份有限公司 filed Critical 深圳市锐明技术股份有限公司
Priority to PCT/CN2018/115684 priority Critical patent/WO2020097862A1/zh
Priority to CN201880002029.XA priority patent/CN109789847B/zh
Publication of WO2020097862A1 publication Critical patent/WO2020097862A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
    • B60R25/042—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor operating on the fuel supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/102—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security company or the owner

Definitions

  • This solution belongs to the technical field of anti-disassembly detection of equipment, and particularly relates to an anti-disassembly detection system based on vehicle monitoring equipment.
  • the vehicle-mounted monitoring equipment is hailed as a black box in the car, which not only undertakes the monitoring of the real-time video images of the roads and passengers of the vehicle, but also undertakes the function of real-time vehicle scheduling of the vehicle through the network platform of the fleet transportation maintenance department.
  • vehicle-mounted monitoring equipment plays a decisive role.
  • the traditional management mode of the operation and maintenance department uses manual maintenance, that is, the operation and maintenance personnel are arranged to check and maintain the vehicle monitoring equipment after the vehicle is collected.
  • This method not only wastes labor cost and time cost, but also has a certain lag. It is often impossible to know the equipment is dismantled in the first time. At the same time, this method cannot control the vehicle's oil circuit and circuit, which increases the vehicle's The risk of theft.
  • the existing anti-disassembly detection technology for vehicle-mounted monitoring equipment has the method of manual inspection and maintenance, resulting in the problem that it is impossible to know the equipment is dismantled in the first time, increasing the risk of vehicle theft.
  • the purpose of this solution is to provide a tamper detection system based on on-board monitoring equipment, which aims to solve the existing tamper detection technology for on-board monitoring equipment that uses manual inspection and maintenance methods, which makes it impossible to obtain the first time Knowing that the equipment is being dismantled increases the risk of vehicle theft.
  • the solution provides a tamper detection system based on vehicle monitoring equipment, the tamper detection system includes a power supply module, a detection module, a collection module, a control module, and a vehicle monitoring device;
  • the power module is connected to the vehicle monitoring device through a first cable, and is used to supply power to the vehicle monitoring device;
  • the detection module is connected to the vehicle-mounted monitoring equipment through a second cable, and is used to detect a tamper-resistant ground signal;
  • the collection module is connected to the vehicle-mounted monitoring device through a third cable, and is used to collect images and video signals inside and outside the vehicle;
  • the control module is connected to the vehicle-mounted monitoring device through a fourth cable, and is used to control the oil circuit of the vehicle to be turned on or off;
  • the vehicle-mounted monitoring equipment includes a first switch module, a second switch module, a main control module, a communication positioning module and an alarm module;
  • the first switch module is connected to the power module, and the second switch module is connected to the control module,
  • the main control module is respectively connected to the power supply module, the detection module, the acquisition module, the control module, the first switch module and the second switch module.
  • the communication positioning module is connected to the The main control module is connected, and the alarm module is connected to the main control module;
  • the first switch module is used to turn on or off the power circuit of the vehicle
  • the second switch module is used to turn on or off the vehicle's oil circuit
  • the main control module is used to detect and judge When any one or more of the first cable, the second cable, the third cable, and the fourth cable are removed, output a control signal to control the communication positioning module to send
  • the positioning data is sent to the background server, and the alarm module is controlled to issue an alarm signal.
  • This solution provides an anti-disassembly detection system based on vehicle monitoring equipment, which includes a power module and a detection module that are respectively connected to the vehicle monitoring equipment by using a first cable, a second cable, a third cable, and a fourth cable.
  • Acquisition module and control module when the main control module inside the vehicle monitoring equipment detects and judges that any one or more of the first cable, the second cable, the third cable and the fourth cable are removed, control
  • the communication positioning module sends positioning data to the background server, and controls the alarm module to send out an alarm signal. In this way, the anti-disassembly detection and alarm functions of the vehicle monitoring equipment are realized.
  • the anti-disassembly detection technology of the monitoring equipment has the method of manual inspection and maintenance, which leads to the problem that it is impossible to know the equipment is dismantled in the first time, which increases the risk of vehicle theft.
  • FIG. 1 is a schematic diagram of a module structure of an anti-disassembly detection system based on vehicle monitoring equipment provided by an embodiment of the solution.
  • FIG. 2 is an example circuit diagram of a tamper detection system based on a vehicle-mounted monitoring device provided by an embodiment of the solution.
  • the above-mentioned anti-disassembly detection system based on vehicle monitoring equipment includes a power module, a detection module, and a collection module connected to the vehicle monitoring equipment by using a first cable, a second cable, a third cable, and a fourth cable, respectively And control module; when the main control module inside the vehicle monitoring equipment detects and judges that any one or more of the first cable, the second cable, the third cable and the fourth cable are removed, it controls the communication positioning The module sends positioning data to the background server, and controls the alarm module to send out an alarm signal. In this way, the anti-disassembly detection and alarm functions of the vehicle monitoring equipment are realized.
  • on-board monitoring equipment includes on-board security related equipment such as on-board digital video recorders, on-board car driving recorders, and so on.
  • FIG. 1 shows a module structure of a tamper detection system based on vehicle monitoring equipment provided by an embodiment of the present solution. For ease of explanation, only parts related to this embodiment are shown, and details are as follows:
  • the above-mentioned anti-disassembly detection system based on vehicle monitoring equipment includes a power module 101, a detection module 102, an acquisition module 103, a control module 104, and a vehicle monitoring device 20.
  • the power module 101 is connected to the vehicle monitoring device 20 through the first cable A, and is used to supply power to the vehicle monitoring device 20.
  • the detection module 102 is connected to the in-vehicle monitoring device 20 through the second cable B, and is used to detect a tamper-resistant ground signal.
  • the collection module 103 is connected to the vehicle-mounted monitoring device 20 through a third cable C, and is used to collect images and video signals inside and outside the vehicle.
  • the control module 104 is connected to the on-board monitoring device 20 through the fourth cable D, and is used to control the turning on or off of the vehicle's oil circuit.
  • the on-board monitoring device 20 includes a first switch module 206, a second switch module 207, a main control module 201, a communication positioning module 209, and an alarm module 210.
  • the first switch module 206 is connected to the power module 101 and used to turn on or off the power circuit of the vehicle.
  • the second switch module 207 is connected to the control module 104 for turning on or off the vehicle's oil circuit.
  • the main control module 201 is connected to the power module 101, the detection module 102, the acquisition module 103, the control module 104, the first switch module 206, and the second switch module 207, respectively, for detecting and judging the first cable A and the second cable When any one or more of the cable B, the third cable C, and the fourth cable D are removed, a control signal is output.
  • the communication positioning module 209 is connected to the main control module 201, and is used for sending positioning data to the background server according to the control signal.
  • the alarm module 210 is connected to the main control module 201 and is used to issue an alarm signal according to the control signal.
  • the on-board monitoring device 20 further includes an auxiliary power supply module 208.
  • the auxiliary power supply module 208 is connected to the main control module 201 and is used to supply power to the main control module 201 when the power module 101 is powered off.
  • the auxiliary power supply module 208 has the effect of self-powering when the power supply module 101 is powered off, so that the vehicle-mounted monitoring device 20 can always be in a working state.
  • the above-mentioned on-board monitoring device further includes a voltage detection module 202, a first voltage comparison module 203, a second voltage comparison module 204, and an analog-to-digital conversion module 205.
  • the voltage detection module 202 is connected to the power module 101 and the main control module 201, and is used to convert the electrical signal output by the power module 101 to the first serial signal to the main control module 201 after voltage conversion.
  • the first voltage comparison module 203 is connected to the detection module 102 and the main control module 201, and is used to compare the detected tamper proof ground signal with the first reference signal, and then output a second serial port signal to the main control module 201.
  • the second voltage comparison module 204 is connected to the acquisition module 103 and the main control module 201, and is used to compare the image and video signals with the second reference signal, and then output a third serial port signal to the main control module 201.
  • the analog-to-digital conversion module 205 is connected to the control module 104 and the main control module 201, and is used to convert the analog signal output by the control module 104 into a digital signal, and then output a fourth serial port signal to the main control module 201.
  • FIG. 2 shows an example circuit of a tamper detection system based on a vehicle-mounted monitoring device provided by an embodiment of this solution. For ease of description, only parts related to this embodiment are shown. Details are as follows:
  • both the first switch module 206 and the second switch module 207 are implemented using relays. Therefore, when the first cable A is removed, the delayed vehicle power-off process is controlled through the relay; when the fourth cable D is removed, the delayed vehicle fuel-off process is controlled through the relay.
  • the power supply module 101 includes a DC power supply with a preset voltage value, and the preset voltage value ranges from 5V to 12V.
  • the above detection module 102 is implemented using an existing detection circuit.
  • the collection module 103 includes a camera, and the camera is used to capture images or videos inside and outside the vehicle.
  • the above control module 104 includes a solenoid valve, which is an industrial device controlled by solenoid and belongs to an actuator. It is not limited to hydraulic and pneumatic. It is used to adjust the direction, flow, speed and other parameters of the medium. .
  • the auxiliary power supply module 208 includes an uninterruptible power supply (represented by a UPS in FIG. 2).
  • the above-mentioned communication positioning module 209 is implemented using an existing positioning circuit (represented by GPS in FIG. 2).
  • the alarm module 210 includes a speaker or sound.
  • the above-mentioned main control module 201 is implemented by a single-chip U1.
  • the voltage detection module 202 includes a transformer chip or a transformer circuit
  • the first voltage comparison module 203 and the second voltage comparison module 204 are both implemented by a voltage comparator
  • the analog-to-digital conversion module 205 includes an analog Number converter.
  • the power supply module 101 is connected to the vehicle monitoring device 20 through the first cable A to realize the power supply of the vehicle monitoring device 20.
  • the single chip microcomputer U1 reads the ADC voltage value of the power supply module 101 through the IO1 port, and obtains a voltage higher than 7V for 700 ms continuously It is judged as the normal mode of the system;
  • the detection module 102 is connected to the negative pole of the vehicle, and is sent to the IO2 of the microcontroller U1 after the voltage comparison by the first voltage comparison module 203.
  • the first voltage comparison module 203 is implemented by a voltage comparator, the circuit parameter of the voltage comparator is set as follows: the reference threshold is 7V, and the default output level is high.
  • the voltage comparator circuit When the input of the anti-disassembly ground detection signal is lower than 7V, the voltage comparator circuit outputs a low-level signal to the IO2 of the microcontroller U1, and similarly higher than 7V outputs a high-level signal.
  • the anti-disassembly grounding detection signal is a low voltage because the negative signal of the vehicle is connected, so when the IO2 of the microcontroller U1 receives a low-level signal, it is determined to be the system normal mode;
  • 3V3 DC level is the normal camera detection signal sent to the voltage comparator for comparison and then sent to the IO3 of the microcontroller U1, IO3 of the microcontroller U1 reads the level status in real time to determine the camera status at this time.
  • the voltage comparator circuit parameters are set as follows: the reference threshold is 2.8V, and the default output level is low.
  • the camera detection signal input When the camera detection signal input is lower than 2.8V, it outputs a low-level signal to the IO3 of the microcontroller U1, and the same is higher than 2.8V to output a high-level signal. Under normal circumstances, the camera detection signal input 3.3V, so when the IO3 of the microcontroller U1 receives the high level signal, the system is judged to be in the normal mode;
  • the solenoid valve input is connected to the on-board monitoring device 20 through the fourth cable D.
  • the microcontroller U1 reads the ADC voltage value of the solenoid valve through the IO4 port. It is determined that the system is in normal mode after reading the voltage higher than 12V for 700 ms.
  • the first cable A is artificially cut, and the uninterruptible power supply UPS starts to supply power to the microcontroller U1.
  • the IO1 of the microcontroller U1 starts to be monitored by the ADC circuit as 0V, which is judged to be an abnormal state in the range below 7V;
  • the second cable B is artificially cut off, the signal at the input terminal of the voltage comparator circuit is equivalent to floating, and the default high level is output.
  • IO2 of MCU U1 is detected as high level and judged as abnormal state;
  • the third cable C is artificially cut off, the camera has no DC level output, the signal at the input terminal of the voltage comparator circuit U7 is equivalent to floating, and the output is set to the default low level.
  • IO3 of MCU U1 is detected as low level and judged as abnormal state;
  • the fourth cable D is artificially cut, and the IO4 of the microcontroller U1 starts to be monitored by the ADC circuit to be 0V, which belongs to the abnormal range of less than 12V, and is judged as an abnormal state.
  • the microcontroller U1 After the microcontroller U1 obtains the vehicle shutdown command issued by the operation and maintenance department through the communication positioning module 209, it starts to delay the shutdown of the two
  • the relay realizes the functions of stopping oil control and power supply of the vehicle, ensuring that the vehicle cannot start before the abnormal state is cleared, and realizing the anti-theft function.
  • the vehicle-mounted monitoring device 20 can quickly notify the vehicle operation and maintenance personnel in the case of external man-made damage, and at the same time can quickly control the vehicle oil circuit and circuit to prevent the vehicle from being stolen; reduce the labor time cost and improve the efficiency of the operation and maintenance department.
  • an anti-disassembly detection system based on vehicle monitoring equipment includes a power supply connected to the vehicle monitoring equipment using a first cable, a second cable, a third cable, and a fourth cable, respectively Module, detection module, acquisition module and control module; when the main control module inside the vehicle monitoring equipment detects and judges any one or more of the first cable, the second cable, the third cable and the fourth cable When being dismantled, the control communication positioning module sends positioning data to the background server, and the control alarm module sends out an alarm signal. In this way, the anti-disassembly detection and alarm functions of the vehicle monitoring equipment are realized.
  • the anti-disassembly detection technology of the monitoring equipment has the method of manual inspection and maintenance, which leads to the problem that it is impossible to know the equipment is dismantled in the first time, which increases the risk of vehicle theft.

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Abstract

一种基于车载监控设备的防拆检测系统，包括分别采用第一线缆（A）、第二线缆（B）、第三线缆（C）以及第四线缆（D）与车载监控设备（20）连接的电源模块（101）、检测模块（102）、采集模块（103）以及控制模块（104）；当车载监控设备（20）内部的主控模块（201）检测并判断第一线缆（A）、第二线缆（B）、第三线缆（C）以及第四线缆（D）中的任意一项或多项被拆除时，控制通讯定位模块（209）发送定位数据给后台服务器，以及控制报警模块（210）发出警报信号。由此实现了对车载监控设备的防拆检测与报警功能，一旦车载监控设备被拆除，可快速报警通知运维人员，并自动锁车控油，防止车辆被盗。

Description

一种基于车载监控设备的防拆检测系统 技术领域
本方案属于设备防拆检测技术领域，尤其涉及一种基于车载监控设备的防拆检测系统。
 背景技术
车载监控设备被喻为汽车内的黑匣子，其不仅承担车辆道路、司乘人员的实时视频画面的监控，还承担着车队运输维护部门通过网络平台对车辆实时车辆调度的功能。由此可见，车载监控设备具有举足轻重的作用。然而，不可避免的是受汽车内外部环境的复杂影响，特别是在人为故意拆坏车载监控设备的情况下，监控设备如何快速的报警通知运维人员、如何快速的控制车辆，是每个车队运输维护部门需要重点考虑的问题。
传统的运维部门管理方式使用人工维护，即每次车辆收车后安排运维人员上车检查和维护车载监控设备。这种方式浪费的不仅仅是人力成本、时间成本，而且有一定的滞后性，往往无法第一时间得知设备被拆，同时该方式无法对车辆进行油路、电路的控制，增加了车辆被盗的风险。
因此，现有的用于车载监控设备的防拆检测技术存在着采用人工检查和维护的方式，导致无法第一时间得知设备被拆，增加车辆被盗风险的问题。
 技术问题
本方案的目的在于提供一种基于车载监控设备的防拆检测系统，旨在解决现有的用于车载监控设备的防拆检测技术存在着采用人工检查和维护的方式，导致无法第一时间得知设备被拆，增加车辆被盗风险的问题。
 技术解决方案
本方案提供的一种基于车载监控设备的防拆检测系统，所述防拆检测系统包括电源模块、检测模块、采集模块、控制模块以及车载监控设备；
所述电源模块通过第一线缆与所述车载监控设备连接，用于对所述车载监控设备进行供电；
所述检测模块通过第二线缆与所述车载监控设备连接，用于检测防拆接地信号；
所述采集模块通过第三线缆与所述车载监控设备连接，用于采集车辆内外部的图像及视频信号；
所述控制模块通过第四线缆与所述车载监控设备连接，用于控制所述车辆的油路导通或关断；
其中，所述车载监控设备包括第一开关模块、第二开关模块、主控模块、通讯定位模块以及报警模块；
所述第一开关模块与所述电源模块相连接，所述第二开关模块与所述控制模块相连接，
所述主控模块分别与所述电源模块、所述检测模块、所述采集模块、所述控制模块、所述第一开关模块以及所述第二开关模块相连接，所述通讯定位模块与所述主控模块相连接，所述报警模块与所述主控模块相连接；
所述第一开关模块用于导通或关断所述车辆的电源回路，所述第二开关模块用于导通或关断所述车辆的油路，所述主控模块用于检测并判断所述第一线缆、所述第二线缆、所述第三线缆以及所述第四线缆中的任意一项或多项被拆除时，输出控制信号以控制所述通讯定位模块发送定位数据给后台服务器，以及控制所述报警模块发出警报信号。
 有益效果
本方案提供的一种基于车载监控设备的防拆检测系统，包括分别采用第一线缆、第二线缆、第三线缆以及第四线缆与车载监控设备连接的电源模块、检测模块、采集模块以及控制模块；当车载监控设备内部的主控模块检测并判断第一线缆、第二线缆、第三线缆以及第四线缆中的任意一项或多项被拆除时，控制通讯定位模块发送定位数据给后台服务器，以及控制报警模块发出警报信号。由此实现了对车载监控设备的防拆检测与报警功能，一旦车载监控设备被拆除，可快速报警通知运维人员，并自动锁车控油，防止车辆被盗，解决了现有的用于车载监控设备的防拆检测技术存在着采用人工检查和维护的方式，导致无法第一时间得知设备被拆，增加车辆被盗风险的问题。
 附图说明
图1是本方案实施例提供的一种基于车载监控设备的防拆检测系统的模块结构示意图。
图2是本方案实施例提供的一种基于车载监控设备的防拆检测系统的示例电路图。
 本发明的实施方式
为了使本方案要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本方案进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本方案，并不用于限定本方案。
为了使本领域的技术人员更好地理解本方案的技术方案，下面结合附图和具体实施例对本方案作进一步的详细说明。
上述的一种基于车载监控设备的防拆检测系统，包括分别采用第一线缆、第二线缆、第三线缆以及第四线缆与车载监控设备连接的电源模块、检测模块、采集模块以及控制模块；当车载监控设备内部的主控模块检测并判断第一线缆、第二线缆、第三线缆以及第四线缆中的任意一项或多项被拆除时，控制通讯定位模块发送定位数据给后台服务器，以及控制报警模块发出警报信号。由此实现了对车载监控设备的防拆检测与报警功能，一旦车载监控设备被拆除，可快速报警通知运维人员，并自动锁车控油，防止车辆被盗。其中，车载监控设备包括车载数字录像机、车载汽车行驶记录仪等车载安防相关设备。
图1示出了本方案实施例提供的一种基于车载监控设备的防拆检测系统的模块结构，为了便于说明，仅示出了与本实施例相关的部分，详述如下：
上述一种基于车载监控设备的防拆检测系统，包括电源模块101、检测模块102、采集模块103、控制模块104以及车载监控设备20。
电源模块101通过第一线缆A与车载监控设备20连接，用于对车载监控设备20进行供电。
检测模块102通过第二线缆B与车载监控设备20连接，用于检测防拆接地信号。
采集模块103通过第三线缆C与车载监控设备20连接，用于采集车辆内外部的图像及视频信号。
控制模块104通过第四线缆D与车载监控设备20连接，用于控制车辆的油路导通或关断。
其中，上述车载监控设备20包括第一开关模块206、第二开关模块207、主控模块201、通讯定位模块209以及报警模块210。
第一开关模块206与电源模块101相连接，用于导通或关断车辆的电源回路。
第二开关模块207与控制模块104相连接，用于导通或关断车辆的油路。
主控模块201分别与电源模块101、检测模块102、采集模块103、控制模块104、第一开关模块206以及第二开关模块207相连接，用于检测并判断第一线缆A、第二线缆B、第三线缆C以及第四线缆D中的任意一项或多项被拆除时，输出控制信号。
通讯定位模块209与主控模块201相连接，用于根据控制信号，发送定位数据给后台服务器。
报警模块210与主控模块201相连接，用于根据控制信号，发出警报信号。
作为本方案一实施例，上述车载监控设备20还包括辅助供电模块208，辅助供电模块208与主控模块201相连接，用于当电源模块101断电时，对主控模块201进行供电，因此，辅助供电模块208起到了在电源模块101断电时自供电的效果，使得车载监控设备20能处于一直工作状态。
作为本方案一实施例，上述所述车载监控设备还包括电压检测模块202、第一电压比较模块203、第二电压比较模块204以及模数转换模块205。
电压检测模块202与电源模块101及主控模块201相连接，用于对电源模块101输出的电信号进行电压转换后，输出第一串口信号给主控模块201。
第一电压比较模块203与检测模块102及主控模块201相连接，用于将检测防拆接地信号与第一基准信号进行比较后，输出第二串口信号给主控模块201。
第二电压比较模块204与采集模块103及主控模块201相连接，用于将图像及视频信号与第二基准信号进行比较后，输出第三串口信号给主控模块201。
模数转换模块205与控制模块104及主控模块201相连接，用于对控制模块104输出的模拟信号转换为数字信号后，输出第四串口信号给主控模块201。
图2示出了本方案实施例提供的一种基于车载监控设备的防拆检测系统的示例电路，为了便于说明，仅示出了与本实施例相关的部分，详述如下：
作为本方案一实施例，上述第一开关模块206和第二开关模块207均采用继电器实现。因此，在第一线缆A被拆除时，通过继电器远程实现控制车辆延时断电处理；在第四线缆D被拆除时，通过继电器远程实现控制车辆延时断油处理。
作为本方案一实施例，上述电源模块101包括具备预设电压值的直流电源，预设电压值的范围为5V~12V。
作为本方案一实施例，上述检测模块102采用现有的检测电路实现。
作为本方案一实施例，上述采集模块103包括摄像头，摄像头用于拍摄车辆内外部的图像或视频。
作为本方案一实施例，上述控制模块104包括电磁阀，电磁阀为电磁控制的工业设备，属于执行器，并不限于液压、气动，其用于调整介质的方向、流量、速度和其他的参数。
作为本方案一实施例，上述辅助供电模块208包括不间断电源（图2采用UPS表示）。
作为本方案一实施例，上述通讯定位模块209采用现有的定位电路（图2采用GPS表示）实现。
作为本方案一实施例，上述报警模块210包括喇叭或音响。
作为本方案一实施例，上述主控模块201采用单片机U1实现。
作为本方案一实施例，上述电压检测模块202包括变压芯片或变压电路，上述第一电压比较模块203和第二电压比较模块204均采用电压比较器实现，上述模数转换模块205包括模数转换器。
以下结合图1-图2，对上述一种基于车载监控设备的防拆检测系统的工作原理进行描述如下：
检测正常状态：
1、电源模块101通过第一线缆A接入车载监控设备20，实现车载监控设备20的供电，单片机 U1通过IO1口读取电源模块101的ADC电压值，连续700ms获取到电压高于7V，则判断为系统正常模式；
2、检测模块102接入车辆负极，经过第一电压比较模块203进行电压比较后送给单片机U1的IO2。为了防止误判断，第一电压比较模块203采用电压比较器实现，电压比较器电路参数设置为：参考门限值为7V，默认输出电平高电平。当防拆接地检测信号输入低于7V时，电压比较器电路输出低电平信号给单片机U1的IO2，同理高于7V输出高电平信号。正常情况下，防拆接地检测信号由于接车辆负极信号为低电压，故单片机U1的IO2收到低电平信号时，判断为系统正常模式；
3、正常工作的外置摄像头供电后会输出音频、视频模拟信号供给车载监控设备20，摄像头输出的音频信号上会叠加1个3V3的直流电平，单片机U1可通过检测该直流电平来判断摄像头的工作状态，具体实现方式：3V3直流电平即正常的摄像头检测信号送到电压比较器进行比较后送给单片机U1的IO3，单片机U1的IO3实时读取电平状态来判断此时的摄像头状态。为了防止误判，电压比较器电路参数设置为：参考门限值为2.8V，默认输出电平低电平。当摄像头检测信号输入低于2.8V时，输出低电平信号给单片机U1的IO3，同理高于2.8V输出高电平信号。正常情况下摄像头检测信号输入3.3V，故单片机U1的IO3收到高电平信号时，判断系统为正常模式；
4、电磁阀输入通过第四线缆D接入车载监控设备20，单片机 U1通过IO4口读取电磁阀的ADC电压值，连续700ms读到电压高于12V判断为系统正常模式。
检测异常状态：
1、第一线缆A被人为剪断，不间断电源UPS开始给单片机U1供电，单片机U1的IO1通过ADC电路开始监测到为0V，属于低于7V范围判断为异常状态；
2、第二线缆B被人为剪断，电压比较器电路输入端信号相当于悬空，输出默认高电平。单片机U1的IO2监测到为高电平，判断为异常状态；
3、第三线缆C被人为剪断，摄像头无直流电平输出，电压比较器电路U7输入端信号相当于悬空，输出设置的默认低电平。单片机U1的IO3监测到为低电平，判断为异常状态；
4、第四线缆D被人为剪断，单片机U1的IO4通过ADC电路开始监测到为0V，属于低于12V异常范围，判断为异常状态。
报警响应：
1、当第一线缆A/第四线缆D被人为剪断，单片机U1的IO1/IO4接收到异常状态时候，通过通讯定位模块209快速上报给运维人员，同时报警模块210的喇叭启动，提示线缆被剪。此时两个继电器输入由于被剪断，车辆无法控油，供电，保证车辆无法启动，实现防被盗功能。运维人员通过网络平台获悉车辆异常状态定位信息后，派出相关人员及时前往进行维护和排查；
2、当第二线缆B/第三线缆C被人为剪断，单片机U1的IO2/IO3接收到异常状态时候，通过通讯定位模块209快速上报给给运维人员，同时报警模块210的喇叭启动，提示线缆被剪。运维人员通过网络平台获悉车辆异常状态定位信息，可以实时远程下发关闭车辆和控油指令，单片机U1通过通讯定位模块209获取到运维部门下发的关闭车辆指令后，开始延时关闭两个继电器，实现车辆停止控油和供电功能，保证车辆在异常状态未清除前无法启动，实现防盗功能。
因此，车载监控设备20在外部人为破坏的情况下，可快速通知车辆运维人员，同时能够快速控制车辆油路、电路，防止车辆被盗；减少人力时间成本，提高运维部门效率。
综上，本方案实施例提供的一种基于车载监控设备的防拆检测系统，包括分别采用第一线缆、第二线缆、第三线缆以及第四线缆与车载监控设备连接的电源模块、检测模块、采集模块以及控制模块；当车载监控设备内部的主控模块检测并判断第一线缆、第二线缆、第三线缆以及第四线缆中的任意一项或多项被拆除时，控制通讯定位模块发送定位数据给后台服务器，以及控制报警模块发出警报信号。由此实现了对车载监控设备的防拆检测与报警功能，一旦车载监控设备被拆除，可快速报警通知运维人员，并自动锁车控油，防止车辆被盗，解决了现有的用于车载监控设备的防拆检测技术存在着采用人工检查和维护的方式，导致无法第一时间得知设备被拆，增加车辆被盗风险的问题。
以上所述仅为本方案的较佳实施例而已，并不用以限制本方案，凡在本方案的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本方案的保护范围之内。

Claims (10)

  1. 一种基于车载监控设备的防拆检测系统，其特征在于，所述防拆检测系统包括电源模块、检测模块、采集模块、控制模块以及车载监控设备；
    所述电源模块通过第一线缆与所述车载监控设备连接，用于对所述车载监控设备进行供电；
    所述检测模块通过第二线缆与所述车载监控设备连接，用于检测防拆接地信号；
    所述采集模块通过第三线缆与所述车载监控设备连接，用于采集车辆内外部的图像及视频信号；
    所述控制模块通过第四线缆与所述车载监控设备连接，用于控制所述车辆的油路导通或关断；
    其中，所述车载监控设备包括第一开关模块、第二开关模块、主控模块、通讯定位模块以及报警模块；
    所述第一开关模块与所述电源模块相连接，所述第二开关模块与所述控制模块相连接，
    所述主控模块分别与所述电源模块、所述检测模块、所述采集模块、所述控制模块、所述第一开关模块以及所述第二开关模块相连接，所述通讯定位模块与所述主控模块相连接，所述报警模块与所述主控模块相连接；
    所述第一开关模块用于导通或关断所述车辆的电源回路，所述第二开关模块用于导通或关断所述车辆的油路，所述主控模块用于检测并判断所述第一线缆、所述第二线缆、所述第三线缆以及所述第四线缆中的任意一项或多项被拆除时，输出控制信号以控制所述通讯定位模块发送定位数据给后台服务器，以及控制所述报警模块发出警报信号。
  2. 如权利要求1所述的防拆检测系统，其特征在于，所述车载监控设备还包括：
    与所述主控模块相连接，用于当所述电源模块断电时，对所述主控模块进行供电的辅助供电模块。
  3. 如权利要求1所述的防拆检测系统，其特征在于，所述车载监控设备还包括：
    与所述电源模块及所述主控模块相连接，用于对所述电源模块输出的电信号进行电压转换的电压检测模块；
    与所述检测模块及所述主控模块相连接，用于将所述检测防拆接地信号与第一基准信号进行比较的第一电压比较模块；
    与所述采集模块及所述主控模块相连接，用于将所述图像及所述视频信号与第二基准信号进行比较的第二电压比较模块；以及
    与所述控制模块及所述主控模块相连接，用于对所述控制模块输出的模拟信号转换为数字信号的模数转换模块。
  4. 如权利要求1所述的防拆检测系统，其特征在于，所述第一开关模块和所述第二开关模块均采用继电器实现。
  5. 如权利要求1所述的防拆检测系统，其特征在于，所述电源模块包括具备预设电压值的直流电源。
  6. 如权利要求1所述的防拆检测系统，其特征在于，所述采集模块包括摄像头。
  7. 如权利要求1所述的防拆检测系统，其特征在于，所述控制模块包括电磁阀。
  8. 如权利要求2所述的防拆检测系统，其特征在于，所述辅助供电模块包括不间断电源。
  9. 如权利要求2所述的防拆检测系统，其特征在于，所述报警模块包括喇叭或音响。
  10. 如权利要求2所述的防拆检测系统，其特征在于，所述主控模块采用单片机实现。
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