Positioning method for automatic navigation of agricultural vehicle

Zhang Man; Zhou Jianjun; Ji Ying; Chen Yan; Liu Chunhong; Liu Gang

Volume 25 Issue 13

Oct. 2009

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Abstract

Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2009 > 25(13): 74-77.

Zhang Man, Zhou Jianjun, Ji Ying, Chen Yan, Liu Chunhong, Liu Gang. Positioning method for automatic navigation of agricultural vehicle[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2009, 25(13): 74-77.

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Positioning method for automatic navigation of agricultural vehicle

Key Laboratory of Modern Precision Agriculture System Integration Research, China Agricultural University, Beijing 100083, China

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Received Date: June 29, 2009
Revised Date: September 10, 2009
Published Date: October 30, 2009

Graphical Abstract

Abstract

Abstract

Automatic navigation technology for agricultural vehicle can improve position accuracy of the vehicle effectively and realize large-scale production of cropland. An electric bicycle was adopted as experimental platform and system performance with two positioning methods of automatic navigation respectively was analyzed, the one was GPS positioning method and the other was the method based on a fusion of two data source (RTD DGPS and digital compass) by Kalman filter. RTK DGPS and RTD-DGPS were equipped on the vehicle to collect position data, and the data of RTK DGPS was used as standard trajectory. Synthesized weighting values were calculated, which were 0.006 and 0.002 for the GPS positioning method and the fusion method by Kalman filter respectively. The results showed that the fusion method by Kalman filter had a higher accuracy and a better stability than GPS positioning method.
- agriculture,
- vehicle,
- navigation,
- Kalman Filter,
- testing,
- evaluation

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