谭科华 蒋津
摘 要:随着汽车数量的激增,停车位越来越紧张,那么对车位的有效与智能管理就尤为重要。它主要研究智能车位锁的设计,采用STC89C52RC作为控制核心,实现主从机控制系统,主机安装在车位锁内部,从机安装在汽车内部,蓝牙无线通信,控制升降杆升起与降落,语音提示,通过超声波检测车位前方是否有其他车辆停放,并发出语音提示一方面避免撞车,另一方面也避免其他车辆挡在车位外面,主从机未连接时,主机处于低功耗待机状态,电池使用时间更持久,适用性较强。
关键词:STC89C52RC;智能车位锁;无线通信;语音提示
中图分类号:U491.7 文献标志码:A 文章编号:2095-2945(2018)23-0089-03
Abstract: With the rapid increase in the number of cars, parking spaces are becoming more and more tense, so the effective and intelligent management of parking spaces is particularly important. It mainly studies the design of intelligent parking lock. STC89C52RC is used as the control core to realize the master-slave control system. The master is installed inside the parking lock, the slave is installed inside the car, Bluetooth wireless communication is used to control the rise and fall of the lifting rod. Voice prompt, ultrasonic detection of whether there are other vehicles parked in front of the car, and issued voice warning to avoid collision on the one hand; on the other hand, to prevent other vehicles from blocking outside the parking space, when the master-slave machine is not connected. The host computer is in the standby state of low power consumption, the battery life is longer and the applicability is stronger.
Keywords: STC89C52RC; intelligent parking space lock; wireless communication; voice prompt
引言
該项目应用于车位的智能管理,该系统由控制系统与受控系统组成,控制系统安装在汽车内部,受控系统安装在车位锁里面,当汽车靠近车位时,蓝牙无线通信自动连接,控制舵机转动,车位锁打开,并且蜂鸣器语音提示车主可以安全停车,车主离开后,车位锁自动关闭,同时也提示挡在车位外面的车辆,不仅解决了下车和按按钮的麻烦,还能避免其他车辆挡住车位,给用户方便、舒适、放心的体验。同时,受控系统可安装干电池和蓄电池两种电源,两种电源可自动切换,也可以只安装一种电源,供电方式多样。
1 系统设计
系统由车位锁遥控器与车位锁受控端组成,车位锁遥控器由显示电路、按键电路、蓝牙电路和单片机最小系统组成,遥控器总体设计电路如图1所示。车位锁受控端由太阳能充电电路、电源切换电路、蜂鸣器驱动电路、舵机驱动电路、蓝牙驱动电路、超声波电路和单片机最小系统组成,受控端总体设计电路如图2所示。……