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A positioning system and positioning method based on uwb, rfid, ins multi-source joint positioning technology

A joint positioning and positioning system technology, applied in the direction of positioning, radio wave measurement system, and cooperative operation devices, can solve the problems of high AP cost and heavy maintenance workload, and achieve the effect of seamless and accurate indoor positioning

Active Publication Date: 2019-02-05
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of deploying APs in a large area is high, and active client devices are required, and the maintenance workload is heavy.

Method used

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  • A positioning system and positioning method based on uwb, rfid, ins multi-source joint positioning technology
  • A positioning system and positioning method based on uwb, rfid, ins multi-source joint positioning technology
  • A positioning system and positioning method based on uwb, rfid, ins multi-source joint positioning technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079]A positioning system based on UWB, RFID, and INS multi-source joint positioning technology, including a positioning terminal, a UWB positioning module, an RFID positioning module, and an INS positioning module; a main console, the RFID positioning module, the INS positioning module, a temporary The command center is connected sequentially, and the main console, the UWB positioning module, and the temporary command center are connected sequentially. Such as figure 1 shown.

[0080] The UWB positioning module sends a UWB signal to the positioning terminal, and judges whether the UWB signal transmitted back by the positioning terminal meets the preset positioning requirements, and if so, uses the relevant algorithm in TDOA and AOA positioning estimation to obtain the positioning The position of the terminal; otherwise, the position of the positioning terminal is obtained by using RFID positioning technology and INS positioning technology.

[0081] The positioning terminal...

Embodiment 2

[0087] The positioning method of the positioning system described in embodiment 1, such as figure 2 As shown, the specific steps include:

[0088] (1) Each mobile reference base station transmits UWB signals of different frequencies to the positioning terminal, that is, carrier modulation signals based on UWB baseband pulses;

[0089] (2) The positioning terminal receives the UWB signal, and sends the received UWB signal to the information processing unit. At the same time, the UWB signal is frequency-converted by the UWB signal frequency conversion forwarding module, and the frequency-converted UWB signal returns To the mobile reference base station of the corresponding frequency band;

[0090] (3) judging whether the frequency-converted UWB signal returned by the positioning terminal satisfies the preset positioning requirements, and if so, proceeds to step (4), otherwise, proceeds to step (5);

[0091] (4) The mobile reference base station detects the time difference wit...

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Abstract

The invention relates to a positioning system and a positioning method based on a UWB, RFID and INS multisource joint positioning technology. The system comprises a positioning terminal, a UWB positioning module, an RFID positioning module and an INS positioning module, wherein the UWB positioning module sends UWB signals to the positioning terminal, whether UWB signals forwarded back by the positioning terminal meet a preset positioning requirement is judged, if yes, a related algorithm in TDOA and AOA positioning estimation is adopted to acquire the position of the positioning terminal, and if not, the RFID positioning technology and the INS positioning technology is adopted to acquire the position of the positioning terminal. Reliable positioning service is provided for indoor emergent rescue activities, the rescue time is saved, the rescue activity success rate is improved, and the system and the method of the invention can be widely applied in the public safety field.

Description

technical field [0001] The invention relates to a positioning system and a positioning method based on UWB, RFID, and INS multi-source joint positioning technology, and belongs to the technical fields of public security and space positioning. Background technique [0002] In an increasingly modern society, the degree of informatization and intelligence in people's lives is changing with each passing day. With the development of the economy, a series of densely populated areas such as large-scale convenience places, entertainment places, shopping places, and workplaces integrating catering, shopping, entertainment and other functions have emerged. For this kind of specific environment, the population density is high, the environment structure is complex, and people’s knowledge of the area is limited. would cause great economic losses. At the same time, the complex indoor environment structure has also imposed a burden on rescue activities. When carrying out rescue activiti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/10G01C21/16G06K17/00
CPCG01C21/165G01S5/10G06K17/0029
Inventor 熊海良高丽梅元辉马丕明朱维红
Owner SHANDONG UNIV
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