Wireless communication networking method of electric car charging pile cluster

Abstract

The invention relates to a wireless communication networking method of an electric car charging pile cluster. According to the method, the core is that a geographical-location-information-based self-networking route control method of a wireless sensor network is provided. Node / charging pile position information is obtained by a non-ranging positioning algorithm. On the basis of a self-adaption dynamic cluster idea, a hierarchical network is constructed. In terms of the network environment of the charging occasion, a novel threshold defining method is provided by considering a partial node density and a distance factor between the node and the sink base station, thereby improving the network load balancing degree. Moreover, the hotspot problem is also relieved to a certain extent. In order to ensure connection of a larger-scale network, an auxiliary cluster head node is introduced; and the cluster nod and the sink node carry out route path selection according to a trust value. Furthermore, after limited circulation, a partial optimized route with the section upper limit performance index constraint is determined based on the route optimization model. Therefore, the provided method has the great economic benefit foreground relative to the wired framework; and the networking capability and the data processing capability of the management system can be effectively improved.

Description

Technical field: [0001] The invention relates to a wireless communication networking method for electric vehicle charging pile clusters based on geographic location information. It belongs to the field of wireless communication technology. Background technique: [0002] How to solve the energy supply problem of electric vehicles (EVs) is one of the key issues facing the rapid popularization of electric vehicles. At present, the energy supply of electric vehicles is mainly provided by charging piles. On the basis of providing safe and efficient charging services, electric vehicle charging piles need to conduct centralized monitoring and unified management of multiple charging piles in the same area through advanced technical means, and provide a complete cluster management system to promote the development of the electric vehicle industry. develop. [0003] There are many kinds of monitoring equipment such as chargers, power distribution equipment, and protection measureme...

AI Technical Summary

Problems solved by technology

For distribution lines, Miao Shihong et al. proposed to use multi-path reliable information routing mechanism to meet the network reliability requirements. The path selection mainly considered the channel quality and the number of hops from the sensor node to the sink node to ensure the fast transmission of data, but the network throughput The amount cannot be guaranteed; Preetika et al. analyzed the feasibility of using wireless sensor networks for energy management of electric vehicles and realizing information system management and electronic billing, and adopted the method of combining Cluster-Tree routing with AODVjr routing to improve the performance of the algorithm, but only Suitable for smaller networks, where routing paths may not be optimal

Sun Wei and others pointed out that the nodes in the distribution network are powered by mains power, and there is no energy supply problem. They proposed a routing control method based on layered wireless sensor network topology and link quality, using layered multi-path to balance the load. Power distribution equipment provides data communication services with low packet error rate and short delay, but the algorithm is not sensitive to changes in network topology and cannot guarantee that all nodes are connected to the network

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