The Research And Improvement Of CTP Routing Protocol In Wireless Sensor Networks For Meteorological Observation

In recent years, with the rapid development of sensor technology and wireless coummunication technology, micro sensor integrated information collection, data processing and wireless communications,and other functions.A large number of inexpensive sensor nodes deployed in the monitoring area form a wireless sensor network, through wireless communication form a multi hop ad hoc network system. At present, it has been widely used in many applications. We use the wireless sensor that can be quickly deployed, do not need the advantages of infrastructure, combining wireless sensor network with meteorological observation, can make up for the shortcomings of traditional meteorological observation station.In the application scenario of meteorological observation, the research of routing protocols for wireless sensor networks is a very important research point. A reasonable routing protocol can support the efficient transmission of data in the whole wireless sensor network. Based on this, the research contents carried out in this paper are as follows:The first is to complete the design of ACTP routing protocol algorithm, ventured an energy balance and data delivery ratio optimization protocol based on CTP.The remaining energy and the package rate are added to the node’s link selection strategy, not relying on a single ETX value, join probability selection mechanism to extend the life cycle of the whole network and improve the delivery ratio of data.Then we propose an anomaly detection algorithm for the temperature data collected by the nodes. The algorithm is designed to run on a node that is limited in performance to avoid a large number of abnormal date transmission. Save the limited energy of the entire network. Anomaly detection algorithm using spatial correlation, arrording to the temperature data acquisition in the neighbor node, judges whether the data collected is reasonable.Experimental results show that our proposed ACTP and anomaly detection algorithms are effective to achieve the goal of the early design. The network lifetime is prolonged, the delivery ratio is improved, and the transmission of abnormal data is avoided.