设计说明书
总字数：16000+
摘要
随着电动车保有量的快速增长，车辆被盗问题愈发突出，传统机械锁具防盗能力弱、无实时预警与远程监控功能的弊端日益显现，无法满足用户对车辆安全的全方位需求。电动车一旦被盗，不仅造成经济损失，还可能因车辆被非法使用引发交通隐患，因此研发一种具备实时监测、声光报警、远程控制功能的智能防盗系统，对保障车辆安全、提升用户使用安全感具有重要现实意义。
本设计提出了一种基于 STM32F103C8T6 单片机的电动车防盗系统。系统核心功能包括：通过 SW-420 振动模块实时检测车辆振动状态，当车辆处于锁闭状态且检测到异常振动时，立即触发声光报警模块发出警示；通过 2262 四路无线遥控模块，实现一键开锁与锁车操作（开锁时单片机控制继电器驱动电磁锁解锁，锁车时控制电磁锁锁闭）；集成 Air780e 4G 模块，支持系统与手机端的远程通信，用户可通过手机远程查看车辆当前状态（如是否锁闭、是否触发报警）；同时，用户可通过手机 APP 直接发送指令，实现远程开锁与关锁，无需依赖物理遥控。
该电动车防盗系统的应用价值在于，为用户提供了多层次、智能化的车辆防盗解决方案。通过本地振动检测与声光报警实现即时威慑，借助无线遥控满足近距离便捷操作，依托 Air780e 4G 模块与手机联动实现远程监控与控制，全方位提升电动车防盗能力，减少车辆被盗风险，保障用户财产安全，同时提升使用便捷性，为电动车安全管理提供有力支持。
关键词：STM32F103C8T6；电动车防盗系统；SW-420；无线遥控；4G 模块
Electric vehicle anti-theft system
Abstract
With the rapid growth of electric vehicle ownership, the problem of vehicle theft has become increasingly prominent. The drawbacks of traditional mechanical locks, such as weak anti-theft capabilities, lack of real-time warning and remote monitoring functions, are becoming increasingly apparent, which cannot meet the comprehensive needs of users for vehicle safety. Once an electric vehicle is stolen, it not only causes economic losses, but may also pose traffic hazards due to illegal use. Therefore, developing an intelligent anti-theft system with real-time monitoring, sound and light alarm, and remote control functions is of great practical significance for ensuring vehicle safety and enhancing users’ sense of security.
This design proposes an electric vehicle anti-theft system based on STM32F103C8T6 microcontroller. The core functions of the system include: real-time detection of vehicle vibration status through the SW-420 vibration module. When the vehicle is in a locked state and abnormal vibration is detected, the sound and light alarm module is immediately triggered to issue a warning; By using the 2262 four-way wireless remote control module, one click unlocking and locking operations can be achieved (when unlocking, the microcontroller controls the relay to drive the electromagnetic lock to unlock, and when locking, the electromagnetic lock is controlled to lock); Integrated Air780e 4G module, supporting remote communication between the system and mobile devices. Users can remotely view the current status of the vehicle (such as whether it is locked or triggered) through their mobile phones; Meanwhile, users can directly send commands through the mobile app to achieve remote unlocking and unlocking without relying on physical remote control.
The application value of this electric vehicle anti-theft system lies in providing users with multi-level and intelligent vehicle anti-theft solutions. Real time deterrence is achieved through local vibration detection and sound and light alarm, and convenient operation at close range is achieved through wireless remote control. Remote monitoring and control are achieved through the linkage of Air780e 4G module and mobile phone, comprehensively improving the anti-theft ability of electric vehicles, reducing the risk of vehicle theft, ensuring the safety of user property, and improving the convenience of use, providing strong support for electric vehicle safety management.
Keywords： STM32F103C8T6; Electric vehicle anti-theft system; SW-420； Wireless remote control; 4G module.
目 录
1 绪论
1.1 研究背景及意义
1.2 国内外研究现状
1.3 主要内容
2 系统总体方案设计
2.1系统总体设计
2.2 主要模块方案选择
3 系统硬件设计
3.1 总体硬件框架
3.2 主控模块电路设计
3.3 振动检测模块电路设计
3.4 无线遥控模块电路设计
3.5 4G 通信模块电路设计
3.6 执行（继电器 + 电磁锁）模块电路设计
3.7 声光报警模块电路设计
4 系统程序设计
4.1 编程软件介绍
4.2 系统主流程设计
4.3 震动检测模块子流程设计
4.4 无线遥控器模块子流程设计
4.5 4G模块联网子流程设计
4.6 声光报警模块子流程设计
5 实物制作与功能测试
5.1 实物制作
5.2 振动检测与声光报警功能测试
5.3 无线遥控开锁 / 锁车功能测试
5.4 4G 远程控制与报警功能测试
6 总结
参考文献
致谢
附录A 原理图
附录B PCB
附录C 主程序
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