The development of agricultural machinery industry to a certain extent, promoted the development of agriculture. In recent years, people also gradually realized the importance of agricultural machinery and equipment, the demand for agricultural machinery and equipment also increased year by year, the quality requirements of agricultural machinery has also gradually increased. In the agricultural machinery industry, the rapid development of emerging business, but also for us put forward the new requirements of agricultural machinery operation monitoring technology, development of the Internet of Things happen to meet this demand. Application of GPS Navigation Automatic Driving Technology in Agricultural Machinery Operation Automatic navigation has a wide range of uses in many aspects such as automatic spraying of pesticide fertilizer, harvesting operations, cultivating and weeding, and planting rice. At present, the navigation technologies for agricultural vehicles mainly focus on machine vision and GPS navigation. The main contents of agricultural vehicle automatic navigation technology include environment perception, path planning, vehicle model establishment and control methods. Through the visual sensor and GPS can get the vehicle's navigation information. Visual sensors identify the route and detect obstacles, play a relative role in positioning, GPS system provides the vehicle's three-dimensional spatial location information. DR trajectory estimation and MM (map matching technology) and other positioning methods to ensure navigation accuracy and reliability, and geographic information system (GIS) continuous acceptance, analysis, statistics, a large number of field information, combined with the GPS system, the large Range of working path planning. The last is to establish a precise mathematical model of the vehicle, according to the state of the vehicle and work environment to provide appropriate control commands to make the vehicle along the ideal path forward. Agricultural machinery remote monitoring and dispatching system application Agricultural machinery remote monitoring and dispatching system is a relying on GSM, 3G digital public communication network, global satellite navigation system and geographic information system technology to provide real-time agricultural information service platform. The system can accurately obtain the real-time position, operation status, fuel consumption and other data of the current farm machinery and provide retrieval and replay of the agricultural history track and job site video; support information display based on high-resolution remote sensing or aerial photography, Class rational distribution of agricultural machinery and hand machine resources, real-time communication scheduling and operational efficiency of the comparative statistical analysis of agricultural operations to achieve the remote monitoring and control of auxiliary managers and stand-alone operations coordination and monitoring and scheduling. Application of Farm Machinery Quality Control Technology Quality control includes four aspects, namely, site preparation quality control, sowing quality control, cultivating quality control and harvest quality control. The quality control of the preparation is mainly the monitoring of the quality of the farmland, including its flat condition and the thickness of the topsoil. The use of laser control technology to improve the formation of flat land, in order to effectively improve the efficiency of farmland irrigation water. The technology is mainly used laser measurement plane and electronic control system as a non-visual control means, as well as traction load sensor, hydraulic pressure sensor control hydraulic adjustment system to achieve automatic lifting of the ground shovel, to achieve the purpose of fine farmland formation. The monitoring of tillage depth through servo and microcomputer according to the size of the load and tillage for automatic control. The technology is through farming resistance force signal and the depth of the displacement of the displacement signal superimposed, and then set the depth of the input to the servo amplifier or computer, and then output control signals to control the electro-hydraulic servo valve, change the control valve The formation and direction of the input tractor to change the fuel tank to enhance the flow and flow to achieve the purpose of controlling the tillage. Sowing quality control, through high-precision GPS navigation and automatic driving technology, the installation of high-precision flow and pressure sensors on the pipeline to achieve real-time monitoring of species and card kinds of automatic alarm, to solve due to the trajectory is not caused by direct leakage, make up Sowing and two stubble and other issues. Cultivation quality control, that is precisely and automatically control the application of chemical fertilizers and pesticides. The use of high-precision differential GPS and advanced speed radar to accurately locate the job location and locomotive operating speed; the use of pipelines to install high-precision flow and pressure sensors, precise control of the amount of fertilizer and spray through the hydraulic pressure, fertilization and application prescription Precision variable fertilization and spraying operations to reduce the amount of inputs; through the positioning of the job information and real-time back, storage, statistical analysis, to achieve the history of historical information history tracking, playback and spatial distribution of the display. Harvest quality monitoring mainly uses the advanced technologies such as high-precision GPS positioning system, ultrasonic sensors, flow sensors, pressure sensors and rapid grain quality testing to measure and charge the area harvested, the spatial distribution of output and the spatial distribution of grain quality. 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