Logistics unmanned aerial vehicle abnormal behavior intelligent identification method based on isolated forest method

A technology of intelligent recognition and unmanned aerial vehicles, applied in the direction of character and pattern recognition, computer components, instruments, etc., can solve the problems of poor robustness, weak generalization ability, low efficiency, etc., and achieve the effect of reducing pressure

Pending Publication Date: 2021-11-09
XIHUA UNIV
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Problems solved by technology

The traditional low-altitude supervision industry adopts the human-carried loop loop method to detect the abnormal behavior of drones based on the knowledge base and physical model, which has problems such as low efficiency and poor accuracy, and requires the inspectors to have sufficient professionalism and knowledge systems to be effectiv

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  • Logistics unmanned aerial vehicle abnormal behavior intelligent identification method based on isolated forest method
  • Logistics unmanned aerial vehicle abnormal behavior intelligent identification method based on isolated forest method
  • Logistics unmanned aerial vehicle abnormal behavior intelligent identification method based on isolated forest method

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0035] The specific steps of an intelligent identification method for abnormal behavior of logistics drones based on the isolated forest method are as follows:

[0036] Step 1: Firstly, calculate and observe the outliers in the flight data of the logistics UAV, so as to facilitate the comparative analysis of the abnormal identification results.

[0037] Here, the mean square error of all data is used to describe the outlier of a single sample data, namely:

[0038]

[0039] Table 1 UAV attitude information

[0040] serial number longitude latitude elevation angle climb speed 1 115.7786 28.3647 18 0.18 2 114.2685 29.3587 -8 -0.11 3 114.9785 28.9687 -53 -0.30 4 115.0138 28.8154 12 0.07 5 115.3987 ...

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Abstract

The invention discloses a logistics unmanned aerial vehicle abnormal behavior intelligent identification method based on an isolated forest method. The logistics unmanned aerial vehicle abnormal behavior intelligent identification method comprises the following specific steps: 1, carrying out outlier calculation and observation on logistics unmanned aerial vehicle flight data; 2, constructing isolated trees according to the input data, combining the single isolated trees with the data features, and constructing a set of isolated forests; 3, calculating the average path length of each isolated tree and the expectation E (h (x)) of the path length, and finally solving the abnormal score of the sample through the E (h(x)); 4, dividing the abnormal data according to the calculation result of the abnormal score; 5, substituting the longitude, latitude, elevation angle, climbing speed and abnormal score data into the model, and evaluating the accuracy. The method has the advantages that intelligent learning and efficient detection of unmanned aerial vehicle abnormal behaviors are achieved, the pressure of high-speed development unmanned aerial vehicle operation on flight safety and public safety can be effectively relieved, and thereby a technical foundation is laid for development of the unmanned aerial vehicle logistics distribution industry.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to an intelligent identification method for abnormal behavior of logistics unmanned aerial vehicles based on the isolated forest method. Background technique [0002] The average annual growth rate of express parcels in my country has reached 10 billion, surpassing developed economies such as the United States, Japan, and Europe for six consecutive years. At present, the single-day express delivery volume in my country exceeds 100 million pieces, and the growing business volume makes it increasingly difficult for traditional delivery methods to meet the growing service demand. With the disappearance of the demographic dividend, logistics companies are beginning to face the current situation of high labor costs and difficult distribution. Using drones to participate in logistics distribution can not only greatly reduce distribution costs, but also improve efficiency...

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Application Information

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IPC IPC(8): G06K9/62
CPCG06F18/24323G06F18/2433
Inventor 唐立张学军张祖耀
Owner XIHUA UNIV
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