国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

To improve the automation and intelligent level of agricultural machinery operation, the automatic navigation and control system of agricultural machinery is designed using wireless sensor network, which is composed of a vehicle navigation and control terminal, server and ZigBee wireless network. The vehicle navigation and control terminal is developed on the platform of embedded controller S3C2240 and uses PID fuzzy control algorithm to adjust the motion state of agricultural machinery and communicates with the server. The sever utilizes the fixed step continuous point searching method to plan driving route of the agricultural machinery according to the operated area, accurately positioning by means of multi point location algorithm after receiving the received signal strength indicator RSSI from the mobile vehicle navigation and control terminal, and sends the expected velocity and direction command back. The experimental results show that the designed automatic navigation and control system of intelligent agricultural machinery can achieve accurately positioning and velocity control, the average localization error is only 0.217 m, and the average velocity is 0.984 m/s in the condition of setting 1 m/s, which can fully meet the needs of automatic navigation and operation of agricultural machinery.