Design Of Wireless Meter Reading System Based On Mesh Network

Meter reading system based on wireless Mesh network become relevant industry research and application directions,with advantages which convenient remote operation,convenient construction and low operating cost.There are already have a lot of researches.Several years ago,zigbee mesh network based on the internet of things applications would emerged.At the same time,the State Grid has also been implemented the scheme which based on the wireless private network communication on the frequency 230MHz.But with the project ran,its drawbacks gradually revealed.Such as limited to the network of transmission power,frequency,longer communication distance,and the impact of inter-building obstacles have become bottleneck to be addressed in the application.To response these problems,this paper proposes a wireless communication based on high-power RF transmission frequency band,and using Mesh and Star networks(Tree-Mesh)hybrid network of wireless communications,make advantage of the newer LoRa spread spectrum communication technology in long-distance transmission,that technically effectively improve the quality of communication,and greatly improved the communication efficiency.Meanwhile,constantly researching and comparing with the normal wireless network operation system,filter out the wireless network operating system Conkiti,and make it suit for this paper.In the actual communication,Technicians have also been the focus of the security of wireless communication issue.By improving the technical means,this paper uses the timing so that masters and nodes to interact with large numbers of time stamp packets method,the device clock and the master clock be synchronization,namely time instead of accuracy.Then,taking advantage of this method design the automatically random hopping scheme,and further effectively improve the security of communications.Effectively reduce the possibility of being listened to.The paper theoretical analysis of the feasibility of this method.This paper simulates the real use of the environment,and build a real-world platform.After sufficient research and exploration in the software and hardware,we have made considerable progress,and completed a series of test experiments,gained valuable situ data,and also accumulated a wealth of experience.The system is running as usual.After field proven,the system,to some extent,solve the technical bottlenecks in communications,and alse improve the reliability and security of wireless meter reading.