Study On The Remote Update Application For Wireless Sensor Network

Wireless Sensor Networks (WSN) is composed of a large number of small resource-restrained sensor nodes with certain computing and wireless communication abilities. Because of its low-cost and low power consumption features, WSN has fairly extensive application prospects in many fields and becomes a research hotspot of information technology during recent years.Applications for WSN can be updated dynamically by means of wireless upgrade mechanisms. Current research efforts in wireless upgrade mechanisms for WSN have focused on transmitting application packets for upgrades via wireless medium. However, these schemes require significant overhead involved in sending and receiving application packets that affect the sensor operation, in addition to bringing the nodes down to reprogram and restart them.By designing applications in a way that allows dynamic functionality changes during operation, the overhead and sensor delays can be eliminated. Remote Update Application (RUA) is a novel scheme for designing WSN applications whose behavior can be rapidly and dynamically changed during operation. The results indicate that the energy consumed does not vary significantly for interchanging the modules during application operation. The time to completion for RUA is lesser than that for achieving identical operation in upgrade protocols a veritable functionality change. RUA is achieved in a span of a few milliseconds.