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Intelligent calling system and method based on UWB in indoor environment

An indoor environment, intelligent technology, applied in services based on location information, services based on specific environments, radio wave measurement systems, etc. The effect of reducing errors and high-precision positioning

Active Publication Date: 2021-08-06
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]The purpose of the present invention is to overcome the problem that in the large-scale indoor environment in the prior art, the central dispatcher cannot accurately know the location of the on-site personnel and cannot effectively dispatch the problem. The combination of UWB and wireless communication system realizes the call with precise positioning, and proposes a system and method for intelligent call based on UWB in indoor environment

Method used

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  • Intelligent calling system and method based on UWB in indoor environment
  • Intelligent calling system and method based on UWB in indoor environment
  • Intelligent calling system and method based on UWB in indoor environment

Examples

Experimental program
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Embodiment 1

[0030] An indoor environment UWB-based intelligent call system includes a UWB wireless positioning system and a wireless communication system, wherein the UWB wireless positioning system includes a positioning engine server, an application server, data management and storage equipment, etc., and an indoor site base station is also set (The base station has absolute coordinates) to achieve full coverage of UWB wireless signals in the indoor environment. The density of the base station is determined by the positioning accuracy requirements of the system. Among them, the wireless communication system can realize voice and short data wireless communication functions, including wireless communication center servers and fixed terminals, and base stations are set up indoors to realize full coverage of wireless signals in the indoor environment. The wireless communication system also includes operators or vehicles equipped with wireless communication mobile devices. Terminal (handheld ...

Embodiment 2

[0067] In rail transit, indoor personnel and material positioning is an important part of subway depot system management. The depots of subway depots are generally covered by the top layer, which is an indoor area, and the internal cement pillars are densely distributed. There are also subway vehicles stopped for inspection, dense obstructions, complex environment, and difficult positioning. In addition, subway depots, especially unmanned depots, have requirements for security protection in the track area and personnel intrusion alarms, requiring high positioning accuracy.

[0068] At present, the subway depots use TETRA / DMR for voice calls, and the depot staff are equipped with TETRA / DMR handheld terminals. The depot dispatchers can only inquire about the location of the on-site staff through voice calls, and cannot monitor the location of the depot staff in real time. When an emergency occurs, the central dispatcher cannot immediately know the location and distribution of th...

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PUM

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Abstract

The invention discloses an intelligent calling system and method based on UWB in an indoor environment, and belongs to the technical field of wireless communication. The system comprises a UWB wireless positioning system and a wireless communication system, the wireless communication system can realize voice and short data wireless communication functions, the UWB wireless positioning system is used for acquiring position information of a mobile terminal, the mobile terminal is bound with a UWB positioning tag in the UWB wireless positioning system, and the UWB positioning tag and the mobile terminal are in a one-to-one correspondence relationship; according to the corresponding relation, a calling table is established in advance, and after the wireless communication center server in the wireless communication system obtains the UWB positioning label position information from the UWB wireless positioning system, the mobile terminal corresponding to the UWB positioning label position information is called according to the calling table.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to a system and method for an indoor environment UWB-based intelligent call. Background technique [0002] UWB (Ultra Wide Band, ultra-wide band) has good penetrating ability, and can well realize the positioning problem of relatively complicated indoor environment. UWB indoor positioning technology can be used for indoor precise positioning and navigation in various fields, including people and large objects, such as valuables storage, mine personnel positioning, robot motion tracking, car basement parking, etc. UWB indoor positioning technology is based on the TDOA positioning algorithm, which sends and receives extremely narrow pulse signals of the wireless system, and uses the time difference of signal arrival to obtain the positioning point through the intersection of hyperbolas. Compared with traditional narrowband systems, UWB systems have the advantages of st...

Claims

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Application Information

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IPC IPC(8): H04W4/029H04W4/33H04W64/00G01S5/14
CPCH04W4/029H04W4/33H04W64/00G01S5/14
Inventor 虞凯杨捷陈昳谢联莲王富斌段永奇易立富王学林韦道准高柏松刘名元苏恺刘孜学
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD