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1、I基于无线传输的狭小环境生命探测小车设计摘 要进入本世纪以来，地震频发，目前人类尚不能对地震的发生做出准确预报，地震发生后第一时间的救援行动就显得尤为重要。如何有效发现幸存者就是这其中非常重要的一个环节。该无线生命探测小车以 AT89S52 单片机为控制核心，通过 433MHz 无线发射和接收器接收遥控器的控制信号，并对信号快速处理，转换成 PWM 信号来产生不同的直流电压控制直流电机；通过液晶，无线数据通信及温度检测电路，将小车所处环境的温度经无线数据通信显示在遥控器的液晶显示屏上，从而实现实时的无线数据采集。虽尚不能做到生命探测，只作为一种生命救援，环境探测的探索。该无线遥控小车的功能如下
2、：在有障碍物的情况下实现 20 米内的无线遥控；实现前进、后退、加速、减速、左转、右转以及对速度档的选择；对小车所处环境的温度进行数据采集；实现车载移动系统和无线遥控系统的数据通信；液晶显示器显示小车当前的运行状况和车载移动系统采集到的数据。关键词：无线遥控，单片机，PWM，无线数据采集IIA life detection car based on the wireless transmission of narrow environmentAbstractSince this centery, earthquakes have been taking place frequently. At
3、 precent, people could not make an accurate forecast of the earthquake. So the emergency rescue is particularly important. And how to find survivors effectively is one of the most important parts.The wireless remote control car used car frame to the core for the control of single-chip AT89S52， throu
4、gh the launch and 433MHz wireless receiver to receive commands， instructions and fast processing， converted into PWM signals to produce a different DC voltage control of DC motor; through LCD， wireless data communication and the temperature and humidity detection circuit， the cars temperature and hu
5、midity environment of wireless data communications by the remote control displayed on the LCD screen in order to achieve wireless data collection The functions of the wireless remote control car is as follows： there are obstacles in the realization of the case within 20 meters of the wireless remote
6、 control; the realization of forward and backward， speed up， slow down， turn left， turn right and the choice of speed profile; on car temperature environment humidity data collection; the realization of mobile systems and wireless vehicle remote control system data access; liquid crystal display sho
7、ws the current vehicle operating conditions and vehicle mobile data collection systemKeywords： Wireless remote control; single-chip microcomputer; PWM; Wireless Data AcquisitionIII目 录摘 要 .IAbstract.II1 绪论 . 11.1 课题背景和意义 .11.2 国内外研究现状 .22 设计 说明 .32.1 设计任务 .32.2 原理描述 .32.2.1 总体方案设计 .32.2.2 系统原理 .32.3 方案设计与论证 .42.3.1 车体的设计 .42.3.2 控制器模块 .42.3.3 遥控模块 .52.3.4 电机驱动模块 .52.3.5 显示模块 .52.3.6 温度检测模块 .62.3.7 无线通信模块 .62.3.8 电源模块 .63 车载模块设计 .73.1 电机驱动与控制电路设计 .
