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Hardware Dynamic Behavior Assessing of WSN and Semi-passive RFID Tags in Temperature Monitoring System

  

  1. (Department of Computer Engineering, Jiangxi Polytechnic College, Pingxiang 337055, China)
  • Received:2015-04-23 Online:2015-10-10 Published:2015-10-10

Abstract: For the issue that traditional low temperature monitoring systems tend to ignore the dynamic behavior characteristics of hardware, a dynamic behavior characteristic assessing method based on wireless sensor networks (WSN) and semi-passive tags of radio frequency identification (RFID) is proposed. Thus, the aim is to evaluate the sensors dynamic behavior. The experimental test temperature is freezer temperature (5 ℃), room temperature (23 ℃) and greenhouse temperature (35 ℃). And three different sensor configurations WSN motes particles and four kinds of RFID tags (packaged or not packaged) were compared. In order to assess the hardware dynamic range of the sensor response, first-order response of the sensor is logarithmically and nonlinearly fitted. Experimental results show that the temperature sensor packages containing wireless and RFID nodes will affect the dynamic response, and its properties can monitor fast temperature changes, ensuring the normal operation of the cold chain system.

Key words: wireless sensor networks, radio frequency identification, cold chain system, monitoring, temperature sensors

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