The Research And Development Of Construction Machinery-used Forepart Monitoring System Based On PC104

Because of the low technological content, traditional construction machinery products that were designed by general electronic control techniques gradually loses the market competition force. With the advancement of technology and the demand of the modern construction project, the new generation construction machinery not only need integrating operation and intelligent control, but also need they build the intelligent machinery group cooperating control system based on internet, to get the high efficiency and low consumption of the building project, meanwhile, finish the project as soon as possible. So, developing a new construction machinery monitoring system which can take the local centralized control, supervision and maintenance, at the same time, can remote monitor, diagnose, and attemper, has become a hot problem in our country.Based on the functions of moved construction machinery remote monitoring system, aiming at machine-used forepart monitoring system,the paper has done some research and development works.Firstly, this thesis brings out the three-layer model of construction machinery monitoring system, and put forward a PC104 motherboard and embedded Linux scheme of machine-used forepart monitoring system. Secondly, the paper deeply analyzes and studies Linux kernel reduce, filesystem reduce and the choice of bootloader etc , to transplant embedded Linux operating system on PC104. Thirdly, the paper researches the programming method of char device driver on linux, and finishes CAN device driver. Fourthly, features of some typical embedded GUIs are compared, and the works-to-be-done on transplanting MiniGUI to PC104 under embedded Linux are summarized.A technology of development embedded GUI on MiniGUI in embedded system is given. Finally, the paper researches the technology of serial communicantion on Linux, at same time, has realized video monitoring system based on VC312 image collection card, and has resolved the problem of remote wireless internet of moved construction machinery.The system has been experimented with other subsystems and long-distance monitoring center. The result testified that the system has friendly man-machine conversation interface,easily using,reliable communication,high reliability etc. The communications speed can achieve the requirement of applications. This also indicates the validity and application value of the research result.