Method for automatic identification and area statistics of work plots based on spatial grid division
An automatic identification and spatial grid technology, applied in the field of satellite positioning and identification, achieves the effects of fast speed, overcoming positioning data drift, and high degree of automation
Active Publication Date: 2017-10-27
江苏北斗卫星应用产业研究院有限公司 +1
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However, due to the limitation of a series of objective factors such as signal noise, communication failure and system error, the data is not completely reliable, so the adaptability and reliability of the designed method are very important, and the current measurement methods have not overcome the above problems
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[0043] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.
[0044] see figure 1 As shown, the main algorithm steps involved in the automatic identification and statistical method of working plots through the positioning track points of agricultural machinery vehicles are as follows
[0045] A) data preprocessing;
[0046] B) location point mapping and area clustering;
[0047]C) Operation area boundary tracking;
[0048] D) Area area calculation.
[0049] In the step A), the data preprocessing mainly completes:
[0050] (1) Elimination of positioning drift points. The data reporting interval of the positioning terminal is t seconds, and the maximum driving speed of the agricultural machinery is V m...
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The invention discloses a method for automatic identification and area statistics of work plots based on spatial grid subdivision, which uses satellites to locate the work track points of agricultural machinery and vehicles, mainly including the following steps: A) data preprocessing; B) position point mapping and area clustering; C) operation area boundary tracking; D) area area calculation. The present invention has the following technical advantages: 1. The algorithm processing process does not require human intervention, has a high degree of automation, and can be executed as a task background triggered by a timing trigger in an actual application system, greatly improving the efficiency of agricultural machinery production supervision and management; 2. The calculation is stable and reliable, Through mechanisms such as preprocessing and adaptive threshold, it can effectively overcome the interference of positioning data drift, positioning error and non-operation positioning points; 3. It has good adaptability to actual agricultural machinery operation areas of different shapes, and can generate non-convex operation area boundary polygons , the area calculation is accurate, and the algorithm execution efficiency is high and the speed is fast.
Description
technical field [0001] The invention belongs to the technical field of satellite positioning and identification, and in particular relates to a method for automatic identification and area statistics of work plots based on spatial grid division. Background technique [0002] Traditional agriculture is mostly manual intervention, and the degree of automation is not high. For example, in the overall planning and calculation of agricultural land area, it is generally divided and measured manually, which consumes a lot of labor, and there are certain errors in manual measurement, which cannot accurately reflect the actual situation of cultivated land area. [0003] Precision agriculture is considered to be the frontier of the development of agricultural science and technology in the 21st century. Its high technological content and strong integration and comprehensiveness have greatly improved the efficiency of agricultural production and operations, and it is also an important go...
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IPC IPC(8): G06K9/00G06K9/62
Inventor 徐爱国史余强庄怀宇丁双文陈伏州沈飞马志荣
Owner 江苏北斗卫星应用产业研究院有限公司