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Vol. 158, Issue 11, November 2013, pp. 100-106

 

Bullet

 

The Testing System of Thermal Performance of Heating Radiators Based on ZigBee Wireless Sensor Network Technology
 
1 Zhiguang GONG, 2 Xudong MENG

1 College of Electrical Engineering, Hebei Institute of Architecture Civil Engineering, Zhangjiakou City, Hebei province, 075000, China

2 College of Science, Hebei North University, Zhangjiakou City, Hebei Province, 075000, China
Tel.: 0086-313-8367146, 2 0086-313-4029811
E-mail: gzg9902@126.com, mxd_1981@163.com

 

Received: 30 September 2013   /Accepted: 25 October 2013   /Published: 30 November 2013

Digital Sensors and Sensor Sysstems

 

Abstract: Based on Zigbee Wireless Sensor Network technology and fuzzy control technology, a design scheme of the testing system of thermal performance of heating radiators is put forward, which is no wiring, low-cost and high precision. The project adopts Zigbee wireless communication technology to transmit temperature data, and is no wiring, temperature measuring points can be laid out flexibly. By adopting piecewise polynomial fitting nonlinear soft correction technology, Zigbee wireless network and RS-485 bus to transmit digital temperature signals, transmission error is reduced and temperature measuring accuracy is improved. By adopting Fuzzy-PID control, the control precision of temperature and flow rate are improved, the control precision of temperature is 0.1 %, the control precision of flow rate is 1 %. Experiments prove that the system has a fast response, a stable control process, the high measuring and control precision to meet the requirements of national standard.

 

Keywords: Thermal performance of heating radiators, ZigBee Wireless Sensor Network, Soft correction, Fuzzy-PID control, RS-485 communication, CC2530.

 

 

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