China's first self-developed Beidou navigation agricultural machinery automatic driving system passed the appraisal

China's first self-developed Beidou navigation agricultural machinery automatic driving system passed the appraisal

The appraisal committee consists of 10 experts including Academician Sun Jiadong of the Chinese Academy of Sciences, Academician Shen Rongjun of the Chinese Academy of Engineering, Academician Liu Jingan of the Chinese Academy of Engineering, and Academician Chen Xuegeng of the Chinese Academy of Engineering. They said that the project is facing the major needs of China's modern agricultural development. The project is timely, innovative and innovative, and the results have reached the international advanced level.

"Beidou/GNSS high-precision positioning and low-cost MEMS sensor fusion technology to achieve rapid entry into the international lead." The appraisal committee believes that the product has achieved mass application, achieved significant social and economic benefits, and has a good prospect of promotion and application.

The Beidou navigation agricultural machinery automatic driving system was developed by Beijing Hezhong Shuangzhuang [1.94% Fund Research] Technology Co., Ltd. Guo Xinping, chairman of Hezhong Shuangzhuang, told reporters that the system has completely independent research and development from core components, software algorithms and application display control. It can serve users with different needs and domestic tractor factories, and is more in line with the current domestic farming operations.

It is understood that the system uses a number of independent intellectual property core technologies based on Beidou as the main technology, and developed a new Beidou-based GNSS positioning and MEMS sensor fusion navigation automatic driving system. Adopting forward, stop and backward continuous automatic driving technology to achieve continuous control, less than 15 meters fast entry (fast reverse entry less than 10 meters). It also uses piecewise linearization technology to achieve a very simplified school bus process with guaranteed accuracy. An algorithm model suitable for various application scenarios was developed, and the application of the diagonal operation mode in the agricultural automatic driving system was realized.

The test group consisting of experts from China Agricultural University and China Satellite Navigation and Positioning Association was actually tested at the Xinjiang operation site. The results show that the “Hui Nong” Beidou navigation agricultural automatic driving system achieves a straight line accuracy of 2.5 cm and a transfer line accuracy of 2.5 cm. The stopover starts without a starting curve, and the reverse line distance is less than 10 meters. The actual performance has reached the international advanced products. Level.

Guo Xinping said that while greatly improving the efficiency of agricultural machinery operations, the centimeter-level accuracy of farmland repeated operations such as arable land, sowing, spraying and harvesting is ensured, the driver's labor intensity is reduced, environmental pollution is reduced, unit output is increased, and farmers are brought. More revenue.

In addition, China Satellite Navigation and Positioning Association and China Agricultural Machinery Industry Association and China's Overseas Agricultural Development Industry Alliance signed a strategic cooperation agreement to jointly promote the application of Beidou satellite navigation system in the agricultural machinery industry.

(Original title: China self-developed Beidou navigation agricultural automatic driving system)