Design and Implementation of Message Receiving and Storage System for Real-Time Vehicle Traffic Information

摘要

In order to make travelling more convenient for the public, the traffic information service attracts more and more attention. Nowadays, based on the vehicle traffic information such as vehicle location, speed and route, pushing safety service information accurately and dynamically to the users is becoming a more and more important technology direction. Due to the large volume property of vehicle traffic information, it's a key technical difficulty to design an efficient and stable algorithm for collecting these information. Based on Internet Of Vehicles (IOV) technology, a solution of receiving and storing high-concurrency traffic information was proposed in this paper. The background and the system framework of the project were introduced briefly, followed by a storage performance requirement of the vehicle traffic information service system. Then, the design of data communication based on Netty framework was introduced and a data-receiving algorithm based on multi-thread and double-buffer was proposed. In addition, two data storage methods based on Mybatis were tested according the requirement mentioned above. In our experiment, the performance of the batch insert approach is one-third higher than the item-by-item insert approach, which gives a guidance to choose the batch insert approach in our system. The experimental results show that the data receiving and storage system proposed in the paper achieves higher efficiency and better stability, which can satisfy the requirements of receiving and storing vehicle traffic information well.