The invention discloses a vehicle-mounted terminal anti-disassembly device and method based on Hall sensor detection, and relates to the technical field of vehicle-mounted terminal anti-disassembly. The vehicle-mounted terminal comprises a vehicle-mounted terminal box body, wherein an embedded magnet is mounted on the vehicle-mounted terminal box body; the top layer and the bottom layer of the circuit board are respectively provided with a linear Hall sensor; the first magnet is installed over the linear Hall sensor on the top layer of the circuit board and used for detecting whether the upper cover is detached or not. The second magnet is installed under the linear Hall sensor on the bottom layer of the circuit board and used for detecting whether the lower cover is dismantled or not. The MCU is used for acquiring data of the linear Hall sensor through an ADC (Analog to Digital Converter) interface and processing the data; and the MCU judges the dismounting condition of the upper cover and the lower cover according to whether the position of the embedded magnet relative to the linear Hall sensor is changed or not. According to the invention, a single terminal can realize an anti-disassembly function of the equipment, the upper cover and the lower cover of the equipment can be detected at the same time, and the application scene is wider.
本发明公开了一种基于霍尔传感器检测的车载终端防拆装置及方法,涉及车载终端防拆技术领域。本发明包括车载终端盒体,所述车载终端盒体上安装有内嵌式磁铁;电路板,所述电路板的顶层、底层分别安装有线性霍尔传感器;磁铁一安装在电路板顶层的线性霍尔传感器的正上方,用以检测上盖是否拆除;磁铁二安装在电路板底层的线性霍尔传感器的正下方,用以检测下盖是否拆除;MCU,所述MCU通过ADC接口采集线性霍尔传感器的数据并进行处理;所述MCU根据内嵌式磁铁相对线性霍尔传感器的位置是否变化,判断上下盖拆除情况。本发明实现了单个终端就可以实现设备防拆的功能,也可以同时对设备的上盖和下盖进行同时检测,应用场景更广泛。
Vehicle-mounted terminal anti-disassembly device and method based on Hall sensor detection
一种基于霍尔传感器检测的车载终端防拆装置及方法
2024-03-15
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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