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A method for realizing indoor positioning of pdt terminal

An indoor positioning and terminal technology, applied in the direction of location information-based services, specific environment-based services, electrical components, etc., can solve problems such as inability to locate, and achieve the effect of keeping performance indicators unchanged

Active Publication Date: 2022-05-24
EASTERN COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3) The user must carry a separate positioning device, if it is not carried, it cannot be positioned

Method used

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  • A method for realizing indoor positioning of pdt terminal
  • A method for realizing indoor positioning of pdt terminal
  • A method for realizing indoor positioning of pdt terminal

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Experimental program
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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, the present invention will be further described:

[0025] When the PDT terminal is used under the PDT system, it needs to report the geographical location in real time. When it is used in indoor scenes such as subways, supermarkets, and buildings, it lacks satellite signals and cannot report the precise location of the user in real time. The present invention is a technology for accurately positioning a PDT terminal used in an indoor scene under a PDT system.

[0026] like figure 2 As shown, indoor positioning requires two devices: PDT beacon and PDT terminal. The PDT terminal is worn by personnel and moves indoors, and the PDT beacon machine is arranged at the position that needs to be positioned indoors. Under the coverage of a base station, n PDT beacons are installed indoors. Each PDT beacon has a different ID mark N (N=1, 2,...n), and this N value can be reused under different base stations. , because according to...

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Abstract

The invention relates to a method for realizing indoor positioning of a PDT terminal. It is characterized in that a PDT beacon machine is arranged at a certain distance indoors, and when the PDT terminal is used indoors, it regularly scans the frequency points of each PDT beacon machine; when the PDT terminal scans the frequency point of the PDT beacon machine, it will receive The RC signaling sent by the PDT beacon, the PDT terminal decodes the RC signaling to obtain the ID of the PDT beacon, and at the same time records the field strength value when receiving the signaling; the PDT terminal periodically scans the frequency points of the surrounding PDT beacons , the PDT terminal reports the collected effective ID of the PDT beacon machine and the field strength value Rx to the PGIS dispatcher, and the PGIS dispatcher identifies the location of the PDT terminal according to the reported base station number, ID number, and field strength value. Under the existing PDT system, the present invention can realize accurate indoor positioning of the existing PDT terminals only by adding a certain number of PDT beacon machines.

Description

technical field [0001] The invention relates to a method for realizing indoor positioning of a PDT terminal. Background technique [0002] PDT terminal positioning mainly relies on GPS or Beidou satellite signals, and can only be used outdoors and other places with satellite signals. When locating indoors, when locating the user of the PDT terminal, it is necessary to use other positioning devices to use Bluetooth, WIFI and other technologies for indoor positioning. This requires the user to carry another positioning device and install a corresponding positioning system. Under this solution, various beacons need to be installed indoors, and the user also needs to carry a positioning device when carrying a PDT terminal, which increases the burden on the user. [0003] like figure 1 As shown, the PDT terminal receives satellite signals outdoors, and regularly reports location information to the switching center through the base station it currently belongs to. The switchin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/029H04W4/16H04W4/33H04W64/00
CPCH04W4/33H04W4/029H04W4/16H04W64/00
Inventor 杨冕叶萌周利满石静芸
Owner EASTERN COMM
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