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Electric fence monitoring method for unmanned aerial vehicle plant protecting operations

A technology of electronic fence and unmanned aerial vehicle, which is applied in the field of information processing of agricultural plant protection, can solve problems such as inability to realize remote monitoring and no early warning

Inactive Publication Date: 2017-02-15
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is that when the monitoring target has a tendency to cross the border, no early warning is given
Its disadvantage is that the invention can only be used for on-site monitoring of UAV flight, and cannot realize remote monitoring

Method used

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  • Electric fence monitoring method for unmanned aerial vehicle plant protecting operations
  • Electric fence monitoring method for unmanned aerial vehicle plant protecting operations
  • Electric fence monitoring method for unmanned aerial vehicle plant protecting operations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0190] Example 1, dynamic generation of security boundaries

[0191] according to Figure 7 The algorithm shown generates the security boundary of the plant protection UAV (such as Figure 10 shown); Figure 10 The outer boundary shown in Figure a in the middle is the original boundary of the plot (an orchard in Haidian District, Beijing), and the inner boundary is the safety boundary. These two polygonal boundaries are similar and concentric. When the UAV is flying within the safe boundary, there is no cross-border trend and no cross-border detection is required; when the UAV is flying between the two boundaries, the UAV may have a cross-border tendency, and cross-border detection is required; when the UAV is in the original boundary When it is outside, the drone has crossed the line. When the drone speeds up, the safety margin shrinks. exist Figure 10 In Figure b, the smallest polygonal box is the latest generated security boundary.

[0192] To sum up, the safety boun...

Embodiment 2

[0193] Embodiment 2, electronic fence system of UAV

[0194] The algorithm of this system is implemented based on the JavaScript language and runs on the front-end browser. Through the Ajax technology, the UAV flight data update is obtained from the server every second, and then the UAV flight overflight status is detected through the electronic fence algorithm. This paper chooses the experimental orchard for the flight test of the plant protection UAV. The results show that even with a lower configuration server, it can still handle 2000 concurrent requests at the same time, which can meet the working requirements of multiple electronic fence systems.

[0195] like Figure 11The UAV shown is flying in the security boundary. The electronic fence system developed in this paper detects that the UAV is flying in the security boundary through the ray method. This strategy greatly reduces the amount of calculation, improves the working efficiency of the system, and further improv...

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Abstract

The invention belongs to the technological field of agricultural plant protecting information processing, and discloses an electric fence monitoring method for unmanned aerial vehicle plant protecting operations. An agricultural plant protecting operation plot has boundaries and to ensure the security and efficiency of a plant protection unmanned aerial vehicle in executing the operations of plant protecting, the plant protection unmanned aerial vehicle should not trespass the boundaries. Therefore, it is necessary to monitor the electric fence for the unmanned aerial vehicle plant protecting operations. The method in doing so comprises the following steps: 1) generating in a dynamic manner a security boundary; 2) establishing a dual link communication system based on an unmanned aerial vehicle radio station and a 4G module; and 3) determining the boundary trespassing and the tendency of trespassing of the unmanned aerial vehicle so as to raise the detection efficiency of the boundary trespassing of the unmanned aerial vehicle. According to the invention, it is possible to make pre-warnings when there is tendency for the unmanned aerial vehicle to trespass the boundary so that the user of the unmanned aerial vehicle is able to change the flight direction instantly and that high efficiency unmanned aerial vehicle boundary trespassing can be detected. Therefore, the computational complexity is reduced greatly and the algorithmic efficiency is increased.

Description

technical field [0001] The invention belongs to the technical field of information processing of agricultural plant protection, and in particular relates to an electronic fence monitoring method for drone plant protection operations. Background technique [0002] With the rapid development of science and technology and the continuous improvement of people's awareness of environmental protection and safety, drones are gradually used in various technical fields in China. Plant protection drones have shown outstanding advantages in paddy fields, high-stalk crop operations, and dealing with explosive pests and diseases. They can also deal with the reduction of rural labor force, and have developed rapidly in recent years. The light unmanned helicopter for plant protection has the advantages of high operating efficiency, no need for special take-off and landing airports, reduced chance of personal injury from pesticides, reduced labor intensity of farmers, reduced use of pesticid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0428G05B2219/24024H04W4/021H04W4/40
Inventor 郑立华杨泽王星明杨玮李民赞
Owner CHINA AGRI UNIV
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