基于ZigBee传输的高精度压力控制器

摘要

针对压力控制器存在精度差、分辨率低等缺点,设计了基于ZigBee传输的高精度压力控制器,给出了设计框图、硬件组成及软件系统.该系统采用51单片机、10位高精度A/D转换芯片HX711、悬臂梁式电阻应变传感器和ZigBee无线传输模块,可以将系统实时采集到的高精度重力值通过数码管显示;采用ZigBee无线传输的方式,将当前数据传送给终端设备(如PC,手机等),方便使用者在异地实时查看最新数据.该系统在提高使用效率的同时,也保证了数据的实时性和效率.%High precision pressure controller based on ZigBee transmission is designed to solve shortcomings of pressure controller with poor precision and low resolution.The design block diagram,hardware composition and software system are given.The system uses 51 single chip microcomputer,ten high precision A/D conversion chip HX711,cantilever type resistance strain sensor and ZigBee wireless transmission module.The high precision gravity value collected by the system can be displayed by digital tube.ZigBee wireless transmission is adopted to transmit the current data to terminal devices(such as,PC,mobile phone,etc.),so that users can see the latest data in real time in different places.The system improves the efficiency while ensuring the real-time and efficiency of data.