基于单片机的机动车智能安全带的设计  

Design of intelligent safety belts for motor vehicle based on single chip microcomputer

作　　者：恩德[1] 陈亚柯[1] 邓三星[1] 孙攀[1] 毛哲龙 

机构地区：[1]河南理工大学电气工程及其自动化学院,河南焦作454000 [2]河南省鹤壁供电公司,河南鹤壁458000

出　　处：《微型机与应用》2014年第23期44-46,61,共4页Microcomputer & Its Applications

基　　金：国家自然科学基金(41074090);河南省科技计划重点攻关项目(022102210360)

摘　　要：为了保证驾乘人员行车时的安全,提出了一种基于单片机的可自动系解的智能安全带的设计和实现方案。该装置以单片机AT89S52为控制核心,通过传感器检测和按键控制,利用L298N来控制步进电机的正反转和停止,实现安全带的收紧、锁定、解除等动作。另外,抽拉式安全带采用预收紧和拉力限制装置,以及微碰开关,可实现及时收紧、适度放松和防过卷等功能。In order to ensure the safety of driver and passenger when they are driving, the paper provided a design and realization plan of intelligent device of automatic fastening and removing motor vehicle safety belt. The AT89S52 MCU is used as its control core, controlled by sensors and buttons. And L298N is used to control the turning, reverse and stop of the stepper motor and to achieve tightening, locking and removing of the safety belt. Besides, pull type safety belt has pre-tightening and force limiting device, sensitive switches. It can achieve the function of timely tighten, moderately relaxed and preventing overwind, etc.

关 键 词：AT89S52 安全带 自动锁定 步进电机 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]