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Underground work personnel accurate positioning system and work method mixing WIFI-UWB positioning technologies

A technology for precise positioning and underground operation. It is used in positioning, radio wave measurement systems, measuring devices, etc. It can solve problems such as blocked communication and the accuracy of positioning technology cannot meet application requirements, achieving high positioning accuracy and strong anti-multipath interference ability. , consider the overall effect

Active Publication Date: 2017-05-10
CHENGDU XIMENG TEKE TECH DEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the underground environment with obvious non-line-of-sight characteristics, many obstacles, and serious communication obstruction, the existing positioning technology cannot meet the application requirements in terms of accuracy.

Method used

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  • Underground work personnel accurate positioning system and work method mixing WIFI-UWB positioning technologies
  • Underground work personnel accurate positioning system and work method mixing WIFI-UWB positioning technologies
  • Underground work personnel accurate positioning system and work method mixing WIFI-UWB positioning technologies

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Embodiment Construction

[0049] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0050] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or elem...

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Abstract

The invention brings forward an underground work personnel accurate positioning system and work method mixing WIFI-UWB positioning technologies. The system mainly comprises five major modules, i.e., a WIFI fixation device, a UWB fixation device, a center server, a WIFI receiving apparatus and UWB positioning label of a mobile point to be detected, and a ground monitoring center. The method comprises the following steps: S1, according to an RSS-based WIFI positioning technology employing a triangular positioning method, determining the position of a point to be detected in a triangular area; S2, the UWB fixation device in the area where the mobile point to be detected is disposed measuring the position of the point to be detected by use of a TOA-based positioning technology, and determining a circular curve taking a measurement distance as a radius; and S3, combining the obtained triangular area and the circular curve, and performing analysis according to four different conditions of zero intersection point, one intersection point, two intersection points and three intersection points to obtain accurate coordinates of the mobile point to be detected. According to the invention, the underground work personnel positioning accuracy is improved.

Description

technical field [0001] The invention relates to the field of communication automation control, in particular to a precise positioning system and working method for underground operators using hybrid WIFI-UWB positioning technology. Background technique [0002] In the construction industry, the real-time positioning of underground workers is crucial to counting the number of construction workers and their safe production. The underground engineering environment has obvious limitations. Due to the closed space and the complexity of the underground environment, its sight distance, viewing angle, and orientation are all limited. For safety and effective emergency response, it is highly desirable to be able to locate construction personnel in real time. So that when the construction workers are walking along the road underground, the bottom surface detection equipment can grasp the location information of the construction workers in real time, and rescue can be carried out quic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02G01S5/12
CPCG01S5/0257G01S5/12
Inventor 赵宇廖勇张舒敏辜斌
Owner CHENGDU XIMENG TEKE TECH DEV CO LTD
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