设计说明书
总字数：16000+
摘要
随着汽车工业的飞速发展，汽车安全性与便捷性成为用户关注的核心要点，而中央门锁控制系统作为汽车安全与便捷的重要组成部分，其性能直接影响驾驶体验与车辆安全。传统的汽车门锁控制方式多依赖机械钥匙或单一按键，存在操作繁琐、安全性不足、缺乏智能化联动等问题，难以满足现代汽车对自动化、智能化控制的需求。
基于 STM32F103C8T6 单片机的汽车中央门锁控制系统，整合了按键模块、VS1838 红外遥控模块、MPU6050 碰撞监测模块、D203S 人体热释电模块、KY-003 霍尔测速模块、声光报警模块及门锁驱动装置，实现了汽车门锁的多元化控制与智能安全管理。系统核心功能包括：通过按键控制门锁开关，操作时触发声音报警 3 声；借助 VS1838 红外遥控实现门锁远程开关，同步触发声音报警 3 声；当 MPU6050 监测到车辆发生碰撞时，自动解锁车门并启动 3 秒声光报警；D203S 人体热释电模块检测到驾驶室内无人时，自动上锁并发出 3 声报警；KY-003 霍尔测速模块监测到车辆行驶状态时，自动上锁且伴随 3 声报警。
该系统的实现，有效提升了汽车门锁控制的便捷性与安全性，通过多模块协同工作实现了门锁的智能化联动控制，为现代汽车安全系统的设计提供了高效、可靠的解决方案，同时为同类汽车电子控制设备的研发提供了参考，具有较高的实际应用价值。
关键词：STM32F103C8T6；汽车中央门锁；控制系统；传感器；智能联动；安全防护
ABSTRACT
With the rapid development of the automobile industry, vehicle safety and convenience have become core concerns for users. As an important component of automobile safety and convenience, the performance of the central door lock control system directly affects the driving experience and vehicle safety. Traditional automobile door lock control methods mostly rely on mechanical keys or a single button, which have problems such as cumbersome operation, insufficient safety, and lack of intelligent linkage, making it difficult to meet the needs of modern automobiles for automated and intelligent control.
The automobile central door lock control system based on the STM32F103C8T6 microcontroller integrates a key module, VS1838 infrared remote control module, MPU6050 collision monitoring module, D203S human body pyroelectric module, KY-003 Hall speed measurement module, sound-light alarm module, and door lock driving device, realizing diversified control and intelligent safety management of automobile door locks. The core functions of the system include: controlling the door lock switch through buttons, triggering a sound alarm 3 times during operation; realizing remote door lock switching through VS1838 infrared remote control, synchronously triggering a sound alarm 3 times; when the MPU6050 detects a vehicle collision, automatically unlocking the door and activating a 3-second sound-light alarm; when the D203S human body pyroelectric module detects no one in the driver’s cabin, automatically locking the door and issuing 3 alarms; when the KY-003 Hall speed measurement module detects the vehicle is driving, automatically locking the door with 3 alarms.
The implementation of this system effectively improves the convenience and safety of automobile door lock control. Through the collaborative work of multiple modules, it realizes intelligent linkage control of door locks, provides an efficient and reliable solution for the design of modern automobile safety systems, and also offers a reference for the research and development of similar automotive electronic control equipment, with high practical application value.
Keywords: STM32F103C8T6; Automobile central door lock; Control system; Sensor; Intelligent linkage; Safety protection
目录
第 1 章 绪论
1.1 研究的目的及意义
1.2 国内外发展情况
1.3 本文主要研究内容
第2章 设计思路与方案论证
2.1 主要元器件选择
2.1.1 主控芯片选择
2.1.2 红外接收模块选择
2.1.3 碰撞监测模块选择
2.1.4 人体热释电模块选择
2.1.5 霍尔测速模块选择
2.1.6 按键模块选择
2.1.7 声光报警模块选择
2.2整体设计方案
第 3 章 硬件设计
3.1 主控电路模块
3.2 红外接收模块电路
3.3 碰撞监测模块电路
3.4 人体热释电模块电路
3.5 霍尔测速模块电路
3.6 按键模块电路
3.7 声光报警模块电路
3.8 门锁驱动模块电路
第4章 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 独立按键
4.4 MPU6050模块子流程设计
4.5 红外接收子流程设计
第 5 章 实物测试
5.1 整体实物测试
5.2 红外遥控模块功能测试
5.3 碰撞监测模块功能测试
5.4 人体热释电模块功能测试
5.5 霍尔测速模块功能测试
5.6 按键模块功能测试
5.7 声光报警与门锁驱动模块功能测试
第 6 章 总结与展望
6.1 总结
6.2 展望
致谢
参考文献
附录
附录一：原理图
附录二：PCB
附录三：主程序
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