基于51单片机的公交车投币箱红外遥控密码锁研制

Development of Bus Money-Box Infrared Remote Controlled Code Lock Based on 51 Single-chip Processor

为了解决公交车投币箱机械式密码锁密码量少、安全性差和管理、使用较繁琐等问题,通过对课题的分析,利用红外遥控抗干扰能力强、工作可靠和使用方便等优点,提出了采用AT89C51单片机为控制核心,接合红外遥控技术来组成密码锁硬件结构,设计了8位密码的任意组合设定、开/关锁控制、防止多次解密试探等功能软件,同时还提供了语音提示等人性化处理;实践证明,该密码锁具有可靠性高、成本低、操作简便等特点,有较高的推广价值。

In order to resolve shortage of key quantity of Bus money-box code lock, lack of safety and uneasy in management and application, a kind of code lock hardware construction is put forward by adopting AT89C51 single-chip. Processor as control core is provided with infrared remote control technique which has high anti-jamming and high reliability, convenient to application. It has function software to prevent tentative unlock by adopting arbitrary combination of 8-bit key on/off lock control, at the same time, it also provides personality voice prompt. It turns out to be high reliability, low cost, convenience usage and high generalizing value.