Plant area high-accuracy person positioning method and positioning system

A positioning system and personnel positioning technology, applied in positioning, radio wave measurement system, navigation through speed/acceleration measurement, etc., can solve problems such as weak anti-interference ability, blind spots in positioning system, poor positioning accuracy, etc., and achieve environmental impact Small size, high positioning accuracy, and reduced deployment difficulty

Active Publication Date: 2019-01-01
NANJING SCIYON AUTOMATION GRP
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the defects in the prior art and provide a method for high-precision positioning that can solve the problems of blind spots, poor positioning accuracy, and weak anti-interference ability in the positioning system in complex environments.

Method used

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  • Plant area high-accuracy person positioning method and positioning system
  • Plant area high-accuracy person positioning method and positioning system
  • Plant area high-accuracy person positioning method and positioning system

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Embodiment Construction

[0026] The working principle of the present invention and specific technical solutions are described in further detail below in conjunction with specific embodiments:

[0027] First, if figure 1 As shown, the general area and the complex area are divided according to the wireless signal environment and needs in the factory area: the complex area is the production, storage, and areas with more occlusion in the local environment; the general area is the office area, factory roads, and open areas. And deploy UWB positioning base stations in general areas (the setting density of UWB positioning base stations is controlled at 5 / 900m 2 ), deploy the inertial positioning base station in the complex area (the inertial positioning base station uses the UWB positioning base station module, and set the base station attribute of the UWB positioning base station in the complex area as the inertial positioning base station, and deploy it in the complex area The density of the inertial navi...

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Abstract

The invention discloses a plant area high-accuracy person positioning method. In the method, the interior region of a plant area is divided into a complex environment region and an ordinary region according to the plant area shielding condition, an inertial navigation positioning base station is arranged in the complex environment region, a UWB positioning base station is arranged in the ordinaryregion, 4-6 positioning base station attributes at the periphery are acquired through positioning labels, and positioning is performed through the positioning base station attributes; when 4 positioning base station attributes or more belong to the UWB positioning base station, positioning is performed through a UWB module; when the amount of the positioning base station attributes, belonging to the UWB positioning base station, is 3, the position of a current positioning label is determined by adopting a Kalman filtering method according to acquired UWB module positioning coordinate values and inertial navigation positioning coordinate values; and in other cases, an inertial navigation module is adopted to perform positioning. Through seamless combination of the two of UWB positioning andinertial navigation positioning, the plant area high-accuracy person positioning method provided by the invention solves the problem of poor positioning accuracy for positioning a blind area and a complex environment of the traditional positioning system.

Description

technical field [0001] The invention relates to the field of personnel positioning in a factory area, including a positioning system based on UWB technology and an inertial navigation positioning system. Background technique [0002] UWB technology is a carrier-free communication technology using sub-nanosecond ultra-narrow pulse, which has a long transmission distance, low power consumption and high time resolution. Taking advantage of these advantages, a positioning system based on UWB technology can theoretically Control the error within 10cm. However, the positioning system based on UWB technology also has certain defects: [0003] 1. Object occlusion during positioning has a great impact on the quality of UWB signals; [0004] 2. After the UWB signal penetrates the wall or the human body, the signal strength drops sharply. [0005] These deficiencies will have a greater impact on the accuracy of personnel positioning. Contents of the invention [0006] The purpose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/16G01S5/04H04W64/00
CPCG01C21/165G01S5/04H04W64/00
Inventor 施海庆张伟黄华飞
Owner NANJING SCIYON AUTOMATION GRP
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