一种新型智能大厦局域网中继器的设计

the design of a new-style repeater for using in intelligent building

本文介绍了智能建筑通信系统对通信的要求,以RS485为例设计一种适用于智能建筑的新型中继器,它利用单片机外部中断检测串行通信的起始位,定时器定时控制数据收发周期,从而将数据按字节收发,实现中继器的功能。本方案以RS485通信方式为例,其思想亦适用于其他通信方式。

The paper introduce the communication demands of intelligent buildings, design a new-style repeater for it according to RS485 communication. The repeater detects the start bit of the serial communication with the external interrupt pins, timer control the communication periods of every byte, during it a byte is repeated from one side to another, then reach repeater＇s function. The design is based on RSA85 communication, the idea is also the same with other communication.