火灾报警控制器通信接口设置参数的识别

本文针对串行通信的特点，在无法确知火灾报警控制器串行通信接口所发出的具体数据定义的情况下，提出两种数据采集方法：直接与间接法，取得串行数据的脉冲跳变及跳变时间长度，通过软件编程计算，实现火灾报警控制器串行通信接口设置参数的自动检测识别功能，并对两种采集方法进行了比较．

Recognition of Communication Interface Parameter of Fire Alarm Control

Basing on tho featuros of serial communication, two data collection methods- direct and indirect- are proposed for the condition when specific data definition sent out from tho serial communication interface of the firo alarm control can＇t be obtained, The principles of the above methods are as follows： programming the impulse jump and jump duration of serial data bY softwaro, thus achieving tho automatic detection and recognitlon of communication interface paramoter, in addition, comparisons and contrasts of the above two methods are also delivered.