Agricultural Robot Navigation Research Based On CAN Bus

After entering the21st century, with the developing of agricultural production industrialization and large-scale and the continuous development of precision, new multifunctional agricultural machinery will be used widely, agricultural robot research and development has become one of the important content of agricultural machinery research. Agricultural robot research and development of China was beginning later, less investment, slow development, so it has certain gap compared with developed countries and it is at the stage of initial stage, because the agricultural robot’s job objects are delicate sex and complexity; The working environment is predictive variability and difficulty; The use object and the price are specially. So it is put forward higher requirements for agricultural robot navigation and path planning. Our country’s agricultural robot intelligent level is not perfect enough to satisfy the needs of agricultural production. Difficult to development and the production cost is high, which restricted the development of the agricultural robots.This paper analyzes the development status and trend of agricultural robot navigation firstly, as the support of sensor technology, embedded technology, the Internet of things technology, GPS signal processing technology, differential positioning technology, multi-sensor information fusion technology and on the basis of the wheeled mobile robot platform, gives the agricultural robot integrated navigation system based on CAN bus design; Secondly, it designed the agricultural robot navigation control system based on CAN bus, because the applying of CAN bus successfully manage the various navigation control module, and increasing the robustness and scalability of the system. Thirdly, it designed the GPS signal processing device, giving the coordinate transformation model, and designed the GPS differential positioning system; Fourthly, based on GPS navigation and navigation calculation method, developed a set of integrated navigation system, robot can complete the information collection for navigation and positioning, and finally the system was installed and debugging in experimental verification, through the test run, the system is stable and reliable.Research results show that this topic plan adopted by the method is feasible, various performance indexes can meet the expected design requirements, because of the addition of CAN bus, the system has low power consumption, stable, strong anti-interference ability, strong scalability, etc, and it has good popularization value and practical value.