Design And Implementation Of High Concurrent Communication Gateway For Vehicle Information

The development of urbanization and industrialization leads to frequent traffic accidents,traffic congestion and environmental pollution.In order to solve these problems,people use new technology to create a new solution,intelligent transportation system.In the field of intelligent transportation system,vehicle monitoring system as the main subject is also with the development of the society,the increase of motor vehicles,but also develope rapidly.In large-scale vehicle monitoring system,communication gateway to connect the number of car terminal is very large.In the past,the load scale of the vehicle monitoring system no longer meet the needs of the society,with the increase of the load,the performance of the system is reduced,and even the system is paralyzed.Under such background,this paper studies the design of the communication gateway in the vehicle monitoring system,aiming at the specific project background,and finds the optimized part to realize the support of large scale vehicle.This paper start the gateway communication throughout the development cycle,first clear the communication gateway functional requirements,performance requirements and the communication gateway were the overall structure of the design,and performance optimization design,and detailed design and implement to support the communication gateway to access large scale vehicle.This paper mainly does the following work.1.Design the architecture of the communication gateway,and the design of each function module is designed,and some performance optimization design is carried out.2.Using high performance network application netty framework design and implement and vehicle terminal network communication module,then design and realize the netty frame codec and the event processor based on,to meet the communication gateway of high concurrent connection demand.3.The message response module and data processing module are designed and realized by using the thread pool technology.4.Using Hibernate framework to achieve data persistence layer,the use of ehcache cache framework to achieve the data cache,reduce the database access due to the decline in the performance of the system.