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UWB-based external person positioning system and method for IDC computer room

A technology of external personnel and positioning system, which is applied in the field of external personnel positioning system in IDC computer room, and can solve the problems of lack of security management system and so on

Inactive Publication Date: 2019-03-29
BEIJING BIXING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is a lack of such a security management system that can manage outsiders in the IDC computer room

Method used

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  • UWB-based external person positioning system and method for IDC computer room
  • UWB-based external person positioning system and method for IDC computer room
  • UWB-based external person positioning system and method for IDC computer room

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] Such as Figure 12 As shown, Embodiment 1 of the present invention provides a UWB-based external personnel positioning system in an IDC computer room, which is composed of a positioning base station, a positioning tag, a wireless AP or router, a switch, a positioning server and an access terminal. Among them, the system management software runs on the server to configure and manage the work of the system.

[0126] Since the coverage of each base station is limited, the system requires a combination of multiple base stations to cover the entire positioning area. The number of base stations should be determined according to the area of ​​the positioning area and the site environment.

[0127] According to the environmental characteristics and application requirements of the IDC computer room, one-dimensional positioning coverage is adopted in the aisle area between the cabinets, and two-dimensional positioning coverage is adopted in the public area outside the computer r...

Embodiment 2

[0165] Embodiment 2 of the present invention provides a method for locating outsiders in a UWB-based IDC computer room, including:

[0166] Step 1) The server selects the primary base station and the secondary base station and completes time synchronization between the base stations;

[0167] Step 2) The label broadcasts the TDOA message, and calculates the distance difference between the label and each base station by the time difference between its arrival at each base station;

[0168] The tag broadcasts the TDOA message, and the base stations send their respective timestamps to the server after receiving it, and the server calculates the time difference between the TDOA message broadcast by the tag and the arrival time of each base station through the time correspondence between the master base station and the slave base station in step 1. And calculate the distance difference between the tag and each base station through the time difference.

[0169] Step 3) The label ca...

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Abstract

The invention discloses a UWB-based external person positioning system and a method for an IDC computer room. The system comprises an access terminal, a positioning label, a plurality of one-dimensional positioning cells, a positioning and resolving module and an information management module. The access terminal is used for carrying out identity verification on an external person in the IDC computer room and inputting the information of the external person. The positioning label is worn on the external person, and is used for generating a TDOA message and a TOF ranging message, broadcasting the TDOA message and sending out the TOF ranging message. Each one-dimensional positioning cell comprises two UWB positioning base stations arranged at the two ends of the cabinet aisle of the IDC computer room, wherein the two UWB positioning base stations receive the TDOA message sent by the positioning label, and sending the time stamp of the received message to the positioning and resolving module. One UWB positioning base station is used as a specific base station to receive the TOF ranging message and send the result to the positioning and resolving module. The positioning and resolving module is used for resolving the data sent by the two UWB positioning base stations to obtain positioning coordinates of the positioning label.

Description

technical field [0001] The present invention relates to the field of wireless real-time positioning technology, in particular to a technique for realizing one-dimensional or two-dimensional precise positioning of an IDC computer room by means of TDOA and TOF, and particularly to a UWB-based IDC computer room external personnel positioning system and method. Background technique [0002] In addition to the global positioning system (GPS) application positioning in navigation and outdoor environments, people have not yet had a deep understanding of applications such as indoor positioning and short-distance positioning. The future trend of wireless positioning technology is to combine indoor positioning with outdoor positioning to achieve seamless and accurate positioning. The existing network technology cannot fully meet this requirement, and UWB technology stands out among many wireless positioning technologies due to its low power consumption, good anti-multipath effect, hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02
CPCG01S5/02
Inventor 郑剑锋吴晓霞
Owner BEIJING BIXING TECH
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