DESIGN AND STUDY OF THE DISTRIBUTED INTELLIGENT SUPERVISION CONTROL SYSTEM FOR THE CENTRAL HEATING STATION

摘要

In order to promote the efficiency and the supervisory of the heat supply systems in the north of China, a new intelligent central heating supervision and control system for heat supply station was proposed and designed. The proposed system consists of the intellectualized distributed data acquisition system based on the CAN (Control Area Network)bus with multi-channel and multi-function, the high accuracy embedded controller with HMI (Humane Machine interface)which supported by the high resolution LCD (Liquid Crystal Display) and the ability of wireless communication via GPRS.The feedforward-feedback (fuzzy PID) control was taken as the control scheme of the proposed system. Also, the hardware of the whole system and the software of the control slave node are described in detail. The practical application shows that the system can enhance the advantage of the central heat supply system and has a very high practicality value.