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A distributed real-time positioning system and positioning method based on radio frequency signals

A distributed real-time, radio frequency signal technology, applied in positioning, radio wave measurement system, wireless communication and other directions, can solve the problems of low timeliness and low radio frequency signal positioning accuracy, and achieve the effect of improving accuracy

Active Publication Date: 2020-02-07
和智信(山东)大数据科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, indoor RF signals are easily affected by factors such as electromagnetic noise, buildings, temperature, and human body occlusion, resulting in low accuracy of indoor positioning based on RF signals, which has always been the biggest problem facing researchers.
[0003] At present, real-time target positioning systems mostly rely on the installation of radio frequency tags on devices, which contain modules to detect the location of mobile communication devices. These modules only return estimated values ​​of the location, and do not feed back information such as error tolerance and data detection rate; and large The data processing method of some systems adopts asynchronous or batch processing according to a specific timing, which has low timeliness

Method used

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  • A distributed real-time positioning system and positioning method based on radio frequency signals
  • A distributed real-time positioning system and positioning method based on radio frequency signals
  • A distributed real-time positioning system and positioning method based on radio frequency signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A distributed real-time positioning system based on radio frequency signals, such as figure 1 As shown, it consists of three detection nodes, a local server, and a main server, and the detection nodes, the local server and the main server are interconnected through a network of at least 100 Mbps, and the network can be a wired network, It can also be a wireless network; where 1a, 1b, 1c represent radio frequency devices in the area, 2a, 2b, 2c represent detection nodes, 3 represents a local server, 4 represents a main server; 5a, 5b represent different users. The main server is connected to the Internet, and the user accesses the location information of the main server through the Internet.

[0022] The radio frequency signal transmitted by the radio frequency device includes but not limited to Bluetooth, WiFi, GSM, CDMA, LTE, etc. After the radio frequency device enters the area covered by the three detection nodes, the detection node detects the radio frequency signal...

Embodiment 2

[0029] A distributed real-time positioning system based on radio frequency signals, such as figure 2 As shown, it consists of three detection nodes, a local server, and three main servers, and the detection nodes, the local server and the main server are interconnected through a network of at least 100 Mbps, and the network can be a wired network , can also be a wireless network; where 1a, 1b, 1c represent radio frequency devices in the area, 2a, 2b, 2c represent detection nodes, 3 represents a local server, 4a, 4b, 4c represent multiple master servers, 5a, 5b represent different users. The main server is connected to the Internet, and the user accesses the location information of the main server through the Internet.

[0030] For the setting of multiple main servers, real-time positioning can be realized through content distribution of different main servers when the traffic demand is large; other working procedures are the same as those in Embodiment 1.

Embodiment 3

[0032] A distributed real-time positioning system based on radio frequency signals, such as image 3 As shown, multiple main servers cover multiple areas, and each area is equipped with multiple detection nodes and a local server, and information is communicated between multiple main servers; where 1a, 1b, and 1c represent radio frequency devices in each area, 2a, 2b, 2c, 2aa, 2bb, 2cc, 2aaa, 2bbb, 2ccc represent detection nodes, 3a, 3b, 3c represent local servers, 4a, 4b, 4c represent multiple master servers, 5a, 5b represent multiple users. The main server is connected to the Internet, and the user accesses the location information of the main server through the Internet.

[0033]When the positioning demand in a certain area is large, the main server receiving the local server in the corresponding area can distribute the processing tasks to other main servers for processing, improving the efficiency and effectiveness of the system; other work processes are the same as those ...

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Abstract

The invention discloses a distributed real-time locating system based on radio frequency signals, and relates to the technical field of radio frequency locating. The distributed real-time locating system comprises at least two detection nodes, a local server and a main server, the detection node is used for performing receiving, demodulating and decoding, and data processing on the radio frequency signals, and sending a calibration signal to other detection nodes; the local server is used for calculating the position of a target radio frequency device according to the radio frequency signal information carrying own specific identifier sent by the detection node and the calibration signal information; and the main server is used for managing, storing and displaying the locating information sent by the local server. The local server estimates the position of the target radio frequency device according to the radio frequency signal information from different detection nodes, and corrects the position of the target radio frequency device through the calibration signal sent by the detection nodes so as to improve the indoor locating precision.

Description

technical field [0001] The invention relates to the technical field of radio frequency positioning, in particular to a distributed real-time positioning system and a positioning method based on radio frequency signals. Background technique [0002] In recent years, in order to solve the "last mile" problem of outdoor positioning and navigation, technology giants and research institutions have carried out a lot of research on indoor positioning technology. The more mature ones include Bluetooth, WiFi, RFID, Zigbee, ultra-wideband, and geomagnetic positioning. technology. By triangulating GPS, RFID, GSM, CDMA, Wi-F, Bluetooth, LTE and other radio frequency signals, the position of the mobile device can be determined and real-time positioning can be realized. However, indoor RF signals are easily affected by factors such as electromagnetic noise, buildings, temperature, and human body occlusion, resulting in low accuracy of indoor positioning based on RF signals, which has alw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00G01S5/02
CPCG01S5/021G01S5/0257H04W64/006
Inventor 涂波羊晋闫德华刘越颖唐爱君
Owner 和智信(山东)大数据科技有限公司