Design Of Agricultural Comprehensive Dispatching Vehicle Terminal Based On STM32

Precise agriculture is the tendency of the production and development of modern agriculture. It is a comprehensive system covering many disciplines and sectors, guaranteeing the low-cost, high-efficiency, high quality and product safety. It includes automatic control, positioning, remote control and GIA geographic techniques. Its rapid development is a new point to improve the agricultural quality. On the other hand, agricultural machinery has been comprehensively used in China. How to get reasonable scheduling and make full use of agricultural machinery has become a salient problem.In view of the practical needs, this paper designs an embedded integrated agricultural vehicle terminal based on STM32, and conducts actual tests. Comprehensive agricultural vehicle terminal in this paper is developed by STM32F103VET6micro controller. It integrates functions of owner identity authentication, real-time positioning, anti-theft alarm, the locomotive dispatching information notification, remote start and flameout. The paper firstly analyzes the background and meaning of agricultural machine rescheduling and summarizes its development situation. Meanwhile, the paper conducts analysis on design demand and approaches. In hardware part, on the basis of STM32microcontroller’s minimum system, the paper expands off-chip memory, HCI, and designs Beidou/GPS positioning system, wifi communication system, ID recognition system, etc; In software part, the paper conducts μ C/OS-Operation System and μ C/GUI interface transplant, and conducts analysis and introduction of communication among tasks.(1)The vehicle terminal is Beidou and GPS dual-mode positioning, and the positioning information through GPRS module is transmitted to the remote server, the server will be parsed data passed to the GIS system, so as to realize the real-time monitoring and tracking of agricultural machinery.(2)The NFC identity module will recognize the owners of the vehicle. In the non-owner verification mode, if the locomotive movement exceeds a certain range, the system will alarm and then the vehicle will inform the owner. It will effectively guarantee the safety of agricultural machinery.(3)The vehicle terminal interface simply displays vehicle information in real time through the LCD screen.(4)At the end of this paper, we have a test on the agricultural vehicle terminal; the experiment shows that this system can complete the expected goal perfectly. At the same time every function is a modular design, and it can be upgraded and replaced conveniently in the future, at the same time the vehicle terminal’s cost is lower, and is adaptable in large scale.