Research And Application Of Oil Field Vehicle Management System Based On Wireless Sensor Network

Since the birth of the first car in the world, auto industry and manufacturing advances to a new height with the development of technology. Cars in China have reached 180 million, so how to standardize the management of vehicles has brought new problems and challenges to the enterprise. Daqing oil field management units of motor vehicles has been carried out by the artificial, although institutes a series of rules and regulations, exists a wide range of issues in the implementation process due to various objective and man-made factors. In view of this, the article developes a wireless vehicle computer management system, makes the vehicle management achieve the modernization and automation, prevents the use of improper behavior fundamentally.The paper introduces the development of vehicle management system of the status quo and the related technologies, analysis of the current shortage of vehicle management systems specifically; and then carries out a needs analysis of the vehicle management system software and hardware, identifies the design idea of the system software and hardware, finally determines the system requirements on the operating environment.The design of the hardware system including the power supply units of each module, communication interface, temperature sensors and the corresponding control units, details of the functional modules of the circuit schematics, PCB design as well as the various functional modules of the design of hardware drivers; In addition, designs a system of wireless communication protocol modules: in the course of designing MAC layer protocol, introduced in several commonly used channel access and contrast their advantages and disadvantages, then combined with the practical application of the system, channel access using CSMA means the use of non-adhering to backoff algorithm of the CSMA backoff algorithm, the use of ARQ error control algorithm method, the final design of the MAC layer of wireless communication data frame format; in the design of routing protocols, the first comparison of several popular routing protocols, pointed out the advantages and disadvantages of each, the last in on-demand routing protocol DSR and DSDV proactive routing protocol based on the design of a routing protocol for the system and design found in the corresponding routing algorithm;in order to ensure the security of wireless data transmission ,reliability and real-time,this article gives the corresponding data encryption algorithm and verification algorithm,a large number of experiments to prove the algorithm is secure,reliable,able to meet the system requirements.After complete hardware system design, this paper designs the system software, the system control software interface uses Delphi7.0, remote access part of the main interface in the Visual Studio.Net environment using C # language design, database structure using three-tier C/S structure. System management software primarily consists of real-time display of information inquiries and system settings, remote access parts achieve some of the major information of the network, system software and remote access parts share local database.After the completion of software design, the paper starts to validate the design of function modules and related routing protocols. In the verification process, first compares of several common network topology, in accordance with their respective advantages and disadvantages, designs of a suitable topology of the system that is linear and star-shaped topology mixed, and then builds a small wireless sensor network according to the topology structure using the fuction modules, in the platform validates the routing protocols.Finally, the article summarizes the design and application and makes prospect of vehicle management system in the future.