Research On The Strategy For Keeping Data’s Reliability In Wireless Sensor Network Information Collection System

Abstract：With the rapid development of network communication technology, a verymeaningful and challenging study field-wireless sensor networks(WSN) is rapidlymaturing, Wireless sensor networks can be real-time monitoring, sensing andcollecting environment and information in the distribution network region, andprocessing information in order to obtain detailed and accurate information whichwill be sent to the users who need them. The researchers had carried out extensiveresearch on the media access issues, routing issues, power management, Quality ofservice(QoS) issues, security issues, transport layer and so on.In this article，Host computer software for the wireless sensor networkinformation collection system was developed based on the hardware experimentalplatform. So a complete wireless sensor network system was constructed. Using thecomplete system to research on the data’s reliability from the following three aspects:(1) As the wireless sensor networks often working in the environmentalconditions that are vulnerable to the influence of human, hostile environment, andeasy to lead to sensor fault. According to this phenomenon in this article, a method ofsensor fault detection is proposed.(2) As the wireless sensor networks with large-scale, easy-node failure andother unique nature, the first goal of designing routing protocols is to effectivelyconserve energy and extend the life cycle network. At the same time, in order to meetthe needs of different applications, we also need to take into account therequirements of different business for QoS. The author analyzed several methods thatkeeping data’s reliability at home and abroad, assimilated excellence idea amongthem, and proposed the cluster-based muti-hop, muti-path transmission scheme basedon the differentiated services scheme. The NS2simulation results show that thisstrategy can achieve better data transmission reliability than using LEACH.(3) The accuracy of sensor data is a critical index to evaluate the reliability ofdata in wireless sensor network. Variable-self linear regression was adopted and apredictive model including its’ predictive method over data stream in sensor networks when prediction was defected. Analytical and experimental results showthat this algorithm is effective and correct.