Title:
AGRICULTURAL MACHINERY OPERATION AREA CALCULATION METHOD BASED ON POSITIONING DRIFT CALCULATION MODEL
Document Type and Number:
WIPO Patent Application WO/2021/068177
Kind Code:
A1
Abstract:
An agricultural machinery operation area calculation method based on a positioning drift calculation model. The method comprises the following steps: step 1, collecting and preprocessing moving trajectory points of agricultural machinery, involving: preprocessing sensor data, screening out agricultural machinery operation state information, and constructing a trajectory point time sequence conforming to an operation state; step 2, constructing a positioning trajectory and an operation trajectory, and establishing a polygon according to an operation width; step 3, calculating a coverage area of the operation trajectory, involving: calculating a trajectory area, coverage area and blank area of the operation trajectory from different angles; step 4, constructing a positioning drift calculation model by using extracted core features, and a training sample learning model parameters; and step 5, calculating an agricultural machinery operation area, involving: inputting an operation trajectory and operation area to be calculated into the positioning drift calculation model to obtain an accurate agricultural machinery operation area. The problem of a low calculation accuracy of an agricultural machinery operation area caused when there are multiple operation types in an agricultural machinery farming process and overlapping areas and non-operation areas are generated is solved.
Inventors:
HUANG HE (CN)
WU XIAOWEI (CN)
ZHANG WEI (CN)
SHI YANG (CN)
WU XIAOWEI (CN)
ZHANG WEI (CN)
SHI YANG (CN)
Application Number:
PCT/CN2019/110510
Publication Date:
April 15, 2021
Filing Date:
October 11, 2019
Export Citation:
Assignee:
ANHUI ZHONGKE INTELLIGENT PERCEPTION INDUSTRIAL TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
G01B21/28
Domestic Patent References:
| WO2015193822A1 | 2015-12-23 |
Foreign References:
| CN108332652A | 2018-07-27 | |||
| CN106017400A | 2016-10-12 | |||
| CN107036572A | 2017-08-11 | |||
| CN103673937A | 2014-03-26 | |||
| CN102890706A | 2013-01-23 | |||
| CN109813273A | 2019-05-28 | |||
| CN104992072A | 2015-10-21 |
Other References:
HUI LIU, ZHIJUN MENG, WEIQIANG FU: "Overlap and skip evaluation for agricultural machinery operation based on GPS track logs", TRANSACTIONS OF THE CHINESE SOCIETY OF AGRICULTURAL ENGINEERING, CHINESE SOCIETY OF AGRICULTURAL ENGINEERING, ZHONGGUO NONGYE GONGCHENG XUEHUI, CN, vol. 28, no. 18, 1 September 2012 (2012-09-01), CN, pages 149 - 154, XP055800896, ISSN: 1002-6819, DOI: 10.3969/j.issn.10026819.2012.18.022
Attorney, Agent or Firm:
WUHU SICHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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