A New Ultra-Low Power Wireless Sensor Network with Integrated Energy Harvesting, Data Sensing, and Wireless Communication

2011 ◽  
Author(s):  
Jingxian Wu ◽  
Guoqing Zhou
Keyword(s):  
Wireless Sensor Network ◽  
Energy Harvesting ◽  
Wireless Communication ◽  
Low Power ◽  
Sensor Network ◽  
Wireless Sensor ◽  
Ultra Low Power

An Electronic Shelf Label System Based on WSN

2013 ◽  
Vol 765-767 ◽  
pp. 1718-1721 ◽  
Author(s):  
Chun Hui Zhou ◽  
Pan Mei ◽  
Li Wen Huang ◽  
Ke Zhong Liu ◽  
Yuan Qiao Wen
Keyword(s):  
Wireless Sensor Network ◽  
Wireless Communication ◽  
Low Power ◽  
Base Station ◽  
Wireless Sensor ◽  
Low Power Consumption ◽  
High Error Rate ◽  
Ultra Low Power ◽  
Label System ◽  
Time Price

Traditional paper labels on the supermarkets shelves are of many shortcomings such as the high error rate, high losing rate, increasing cost and unrealizable realtime-updating caused by manual management. In order to overcome these shortcomings, this paper aims to design a new Electronic Shelf Label system. Firstly, the overall framework is introduced. Then an ultra-low-power ESL and wireless communication base station modules are studied respectively. The MAC and router protocols are also designed based on Wireless Sensor Network (WSN) to meet the requirement of low power consumption and real-time price update. The Electronic Shelf Label system can improve the efficiency of the label management greatly and enhance customers experiences thus has a wide prospect of application.

The Development and Application of Ultra-Low-Power Wireless Sensor Network Nodes

2013 ◽  
Vol 846-847 ◽  
pp. 411-414
Author(s):  
Zhi Ming Li ◽  
Xiang Guang Chen
Keyword(s):  
Energy Consumption ◽  
Wireless Sensor Network ◽  
Low Power ◽  
Sensor Network ◽  
Wireless Sensor ◽  
Power Module ◽  
Ultra Low Power ◽  
Network Nodes ◽  
Processing Module ◽  
Wireless Module

In order to extend the life span of battery-powered wireless sensor network nodes, this article proceed from the power module, data processing module, wireless module and MAC protocols to design an ultra-low-power wireless sensor network nodes. The nodes improve the power module efficiency maximally, at the same time it utilizes the ultra-low-power data processing module and the asynchronous MAC protocol adopting a sleep wake-up mechanism. Thus it reduces the integrated energy consumption of wireless module significantly. The life span of the nodes has been increased more than three times. In a word, the design in proposed in this paper greatly cuts down the energy consumption of wireless sensor network, which has practical significance of expanding the application space and improving the application effects of wireless sensor network.

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