摘要
为了解决人工抄表带来的工作量大、抄表难、收费难等一系列问题,可靠地实现了社区电能集中采集,在电度表通讯中,采用RS 485串行通讯,很好地解决了上述问题。详细介绍了串行口RS 485接口的通讯原理、硬件电路原理图和51单片机的软件子程序。实际应用证明:串行口RS 485接口能够使电表数据可靠地集中采集,不但在设计硬件上简单、成本低廉,而且在软件上也很方便、可靠。
To solve a serial of problems about mass workload,hard copying data of meters and hard charging, brought by copying data of meters by manpower,a method of the serial connect RS 485 communication is adopted to carry out reliably concentrated collection of data of electric energy in communication of electric energy metes of community. The design detailed introduces RS 485 communication theory, the circuit diagram of the serial connect RS 485 communication and sinlge chip 51 software subprogramme. Practical operation shows that data of electric energy is reliably concentrated collected by the serial connect RS 485 communication and it makes not only the design of hardware straight forward,the cost low but also it makes the design of software advantageous.
出处
《现代电子技术》
2006年第17期90-91,共2页
Modern Electronics Technique
关键词
RS
485
通信
电能表
集中采集
RS 485
communication
watt-hour meter
concentrated collection