Research on Temperature Monitoring System for Electrical Equipment Based on Wireless Sensor Networks

2011 ◽  
Vol 128-129 ◽  
pp. 706-709
Author(s):  
Dan Ping Jia ◽  
Lin Qiu ◽  
Song Lin ◽  
Ji Hua Yang

A wireless temperature monitoring system based on fluorescence lifetime is researched in this paper, which mainly consists of the temperature acquisition unit and the master control monitoring unit. The wireless module with the core of low-power microcontroller (SX1212) and the sensor based on optical-fiber fluorescence are designed. And the unit of fluorescence temperature measurement is introduced in detail. Testing result indicates that the communication distance of the wireless module can be up to 300 meters, which meets the requirements very well. There are many advantages in this system, such as no wiring, better scalability, real-time monitoring.

2014 ◽  
Vol 27 (5) ◽  
pp. 436-442 ◽  
Author(s):  
Shangbin Jiao ◽  
Dan Song ◽  
Qing Zhang ◽  
Jinwei Tang

2018 ◽  
Vol 8 (6) ◽  
pp. 350-359 ◽  
Author(s):  
Fekher Khelifi ◽  
Abbas Bradai ◽  
Med Lassaad Kaddachi ◽  
Priyanka Rawat

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Glauco Feltrin ◽  
Nemanja Popovic ◽  
Kallirroi Flouri ◽  
Piotr Pietrzak

Wireless sensor networks have been shown to be a cost-effective monitoring tool for many applications on civil structures. Strain cycle monitoring for fatigue life assessment of railway bridges, however, is still a challenge since it is data intensive and requires a reliable operation for several weeks or months. In addition, sensing with electrical resistance strain gauges is expensive in terms of energy consumption. The induced reduction of battery lifetime of sensor nodes increases the maintenance costs and reduces the competitiveness of wireless sensor networks. To overcome this drawback, a signal conditioning hardware was designed that is able to significantly reduce the energy consumption. Furthermore, the communication overhead is reduced to a sustainable level by using an embedded data processing algorithm that extracts the strain cycles from the raw data. Finally, a simple software triggering mechanism that identifies events enabled the discrimination of useful measurements from idle data, thus increasing the efficiency of data processing. The wireless monitoring system was tested on a railway bridge for two weeks. The monitoring system demonstrated a good reliability and provided high quality data.


2017 ◽  
Vol 13 (08) ◽  
pp. 4
Author(s):  
Yong Jin ◽  
Zhenjiang Qian ◽  
Xiaoshuang Xing ◽  
Lu Shen

ensor nodes vulnerable becomes a major bottleneck restricting the wide application of wireless sensor networks WSNs (Wireless Sensor Networks). In order to satisfy the needs of industrial production and daily living environment monitoring, it is important to improve the survivability of wireless sensor networks in environmental monitoring application. In order to have a reliable environment monitoring system, this paper analyzed the damage types and causes of WSNs and the measurement methods of WSNs survivability. Then, we studied the fault detection method and finally realized the design can improve the survivability of the scheme. The robust guarantee scheme through hardware design and algorithm model, realized the remote wireless communication services and prolonged the network life cycle, so as to improve the survivability of the environmental monitoring system.


2017 ◽  
Vol 13 (07) ◽  
pp. 36
Author(s):  
Yuxia Shen

<p><span style="font-size: medium;"><span style="font-family: 宋体;">In wireless sensor networks, for improving the time synchronization perfromance of online monitoring and application of ZigBee protocol, a scheme is designed. For this objective, first of all, the ZigBee protocol specification is summarized, a profound analysis of the hardware abstraction architecture of TinyOS operating system is made; the advantages of the ZigBee protocol compared with the traditional radio technology are comparatively analyzed. At the same time, the node design block diagram based on CC2430 and related development system is provided. In the TinyOS2.x operating system, we analyze CC2430 application program abstract architecture, and on this basis, give the realization process of program design. The research results showed that we achieve an on-line monitoring system based on ZigBee protocol, which has realistic significance of applying ZigBee protocol in wireless sensor network of electrical equipment online monitoring. Based on the above research, it is concluded that the online monitoring system can collect the temperature parameters of the monitored object in real time that it can be widely applied in wireless sensor networks.</span></span></p>


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