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Indoor high precision personnel positioning system

A personnel positioning and high-precision technology, which is applied in the field of indoor personnel positioning system, can solve the problems of position jump, high transmission power, narrow bandwidth, etc., and achieve the effects of stable and accurate positioning, reduced product cost, and low transmission power

Inactive Publication Date: 2018-12-07
广州来米科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) With narrow bandwidth and meter-level positioning accuracy, users only know that the positioning target is in a certain area, but cannot know the exact location. This is the shortcoming of both Bluetooth and WIFI
[0004] 2) The transmission power is high, and a large-capacity battery is required. The label cannot be miniaturized, and large-scale applications cannot be realized. This is the shortcoming of WIFI
[0005] 3) At present, products using UWB positioning technology on the market, when applied to data center scenarios, cannot well solve the problem of cabinets blocking the signal of positioning tags, and there are position jumps, which cannot achieve the expected positioning effect

Method used

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  • Indoor high precision personnel positioning system
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  • Indoor high precision personnel positioning system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The present invention provides such Figure 2-3 The indoor high-precision personnel positioning system shown includes a tag 1, a base station 2 and a positioning engine 3. The base stations 2 are arranged in multiples and evenly distributed in the room and in the partition. The base stations 2 are evenly distributed in every corner of the room. The number depends on the positioning range and whether there is a partition. If you want to achieve positioning on a straight line, two base stations 2 are enough. To achieve positioning on a plane, you need 3 base stations 2. If there is a partition, each partition must be independent For positioning, the tag 1 includes a housing 4, the housing 4 is made of white plastic, and the housing 4 is internally provided with a battery module 5, a first circuit board 6, a first antenna, a first UWB transceiver chip 7, a first A single-chip microcomputer, the first USB connection base 8 and a motion sensing chip 9, the battery module 5, ...

Embodiment 2

[0048] The present invention also provides a positioning algorithm for an indoor high-precision personnel positioning system, which includes the following specific steps:

[0049] 1) After power-on, base station 2 is in receiving mode, waiting for tag 1 to enter the positioning range;

[0050] 2) When the person carrying the tag 1 is in a static state, the first single-chip microcomputer and the first UWB transceiver chip 7 on the tag 1 are in a low-power sleep mode. After the person is active, the motion sensor chip 9 generates an interrupt, and the first single-chip microcomputer Resume operation, start the first UWB transceiver chip 7;

[0051] 3) Tag 1 sends a UWB message to base station 2, and records the sending time T_tag_tx;

[0052] 4) Base station 2 receives the UWB message of tag 1, and records the receiving time T_tag_rx;

[0053] 5) The base station 2 sends a UWB message to the tag 1, and records the sending time T_anc_tx;

[0054] 6) Tag 1 receives the UWB mes...

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PUM

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Abstract

The invention discloses an indoor high precision personnel positioning system. The system comprises a label, a base station and a positioning engine, wherein the label comprises a casing, the casing is internally provided with a battery module, a first circuit board, a first antenna, a first UWB transceiver chip, a first single-chip microcomputer, a first USB connection female seat and a motion sensing chip, the base station is provided with a second antenna, a second circuit board, an external power supply port, an RJ45 network port, a second USB connection female seat, a second UWB transceiver chip, a second single-chip microcomputer and a serial port server, the positioning engine includes a positioning server, and positioning algorithm software is installed on the positioning server. The system is advantaged in that one-dimensional and two-dimensional positioning can be completed through simply selecting two base stations by the positioning algorithm, the system is suitable for specific environments such as data centers, through comparing signal intensity of the label at cabinet channels of the base station, label positioning base station group selection is made to be more accurate.

Description

technical field [0001] The invention relates to the field of indoor personnel positioning systems, in particular to an indoor high-precision personnel positioning system. Background technique [0002] Indoor personnel positioning management can report the current indoor activity personnel relative to a reference object. If the system establishes a reference object and draws a map, it can display the coordinates and their positions on the map. Both WIFI wireless local area network and Bluetooth communication are wireless communication technologies, and they are relatively mature in application. They are currently used to realize indoor personnel positioning. However, these technologies were used for data communication in the early days. When applied to wireless positioning, there are the following Obvious disadvantages: [0003] 1) With narrow bandwidth and meter-level positioning accuracy, users only know that the positioning target is in a certain area, but cannot know th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/33H04W64/00G01S5/14
CPCG01S5/14H04W4/023H04W4/33H04W64/00
Inventor 张世杰席伟姜友辉
Owner 广州来米科技股份有限公司
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