ABSTRACT
This paper introduces a design method of environmental monitoring based on the YD/T 1363.3-2005 communication protocol. This design mainly consists of a control module whose core is the PIC18F6520 microcontroller, using temperature and humidity sensor to gather temperature and humidity of environmental, using smoke sensors to detection smoke, and displaying environmental data on the display panel, while through the RS-232and RS-485 communication with the control center, both of communications sides are comply with YD/T 1363.3-2005 communication protocol, the monitoring center can send the corresponding command to read environment data of system and set the parameters of system, if the system in the alarm, the alarm message will be sent to the control centers of the remote monitoring system.
Keywords: communication protocol, PIC18F6520 microcontroller, monitor
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