摘要
在分析热泵热水器运转测试项目的基础上,首先提出了测试生产线的设计要求。重点阐述了测试系统的软硬件原理。系统基于RS485总线,以AVR单片机为主体构成一主多从的总线型结构,设计了测量仪硬件及主控机的总线接口,并给出了通信协议。在此基础上,介绍了主从机的软件设计和上位机的软件功能。
After analyzing the running test items of air-source heat-pump water heater,the paper first puts forward the design demands for test production line,Then it emphasizes the principle of hardware and software in testing systerm.The system is composed of AVR singlechip basing RS485 bus,and forms itself into a single-master＆multiple-slave bus structure.The measurement instrument and master-controller are designed as well as their bus interface,and the communication protocols are given.On the basis,the paper introduces the design of master＆slave microcontroller software and the functions of PC software.
出处
《工业控制计算机》
2006年第11期55-57,共3页
Industrial Control Computer
