Intelligent Vehicle Gps / Gsm System And Its Applications In The Vehicle Location

In this dissertation, a GPS receiver device with record memory is proposed, which is used in the fields of electronic information, automatic control and automobile industry.By receiving data from a GPS OEM Broad, storing the data in the record memory, and displaying where the automobile was in the past a month using the electronic map in the computer, the administration of a group of automobiles is realized. Firstly, the theory of the vehicle positioning and navigation is presented with briefness.Secondly, the hardware design and the software design for the GPS receiver device is introduced. Lastly, a study on the accuracy of the vehicle positioning is argued.In the design of the GPS receiver device, this dissertation introduces the hardware design and the software design with a chapter respectively.By using the GARMIN GPS OEM Board and the Motorola GSM Module, controlled by the microcomputer MCS-51, the GPS main controlled circuit board is madeo In the software design, the main program, the program of the communication between the GPS main controlled circuit board and the GPS OEM Board, the program of the erase and the read for the record memory, the program of the short message service, the program of the data transformation from the record memory to the computer is proposed.Although the Global Positioning System is the most accurate wireless positioning system at present, many users are not satisfied with the origin accuracy and hope to have better quality. The data processing based the output data is a widely used technology.In the last section of the dissertation, the types and the reasons of the error is presented, and the medium filter used to improve the accuracy is argued.The stimulation shows that the method is feasible.Finally, the assembly program according to the medium filter is programmed, and the program is transformed into the microcomputer, thus the accuracy of the output data from the GPS receiver device is improved.