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Indoor positioning system

An indoor positioning and positioning anchor technology, applied in the field of positioning, can solve the problems of restricting large-scale promotion and high construction costs, and achieve the effects of expanding the ability to receive signals and coverage, high construction costs, and high network stability.

Inactive Publication Date: 2018-01-30
重庆慧联无限科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high construction cost has always restricted its large-scale promotion in the field of indoor positioning applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The parameters of the positioning repeater are configurable, and the parameter configuration is the same as that of the positioning tag, so it can receive the return data of the positioning tag. The positioning repeater has the ability to receive positioning tag signals. The positioning repeater has unlimited signal transmission capability and can send the received data of the positioning tag. When the sending port is set to be the same as the channel parameter of the positioning gateway, it can be received by the positioning gateway. The positioning repeater has one or more independent radio frequency links. If it is a link, the sending and receiving share a link resource, and it is necessary to switch between the sending and receiving functions (the receiving state cannot send, and the sending state cannot receive) ), if there are more than two link resources, the sending and receiving can be set on different links, and the sending and receiving will not conflict (rec...

Embodiment 4

[0087] Example 4, such as Figure 8 As shown, room 1 and room 2 are areas that need to be located, and the positioning gateway and anchor manager are deployed in room 3.

[0088] One type of positioning tag 1 is in the room, it scans and receives the broadcast information of positioning anchor points 1, 2, 3, 4, and obtains its ID and corresponding signal strength value. Then send out its own ID value and the received anchor point related information together. Since it is not within the coverage of the positioning gateway, the positioning gateway cannot receive the information of the positioning tag, so a positioning repeater needs to be placed between room 1 and room 2, and its function is to receive the information sent by the positioning tag and forward it to the positioning gateway. All the state information broadcast by the positioning anchor can be received by the anchor manager (the sending frequency of the state information of the positioning anchor is low, so the tr...

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Abstract

The invention discloses an indoor positioning system which comprises a plurality of positioning anchor points which periodically transmit self ID information through encrypted / non-encrypted broadcastframes, a positioning label which is arranged on a target to be positioned and scans and receives the ID information of the positioning anchor points and the signal strength RSSI values correspondingto the positioning anchor points, and emits the information and values in a wireless mode, a positioning gateway which receives and sends out the information sent by the positioning label in a wireless mode, a positioning server which receives the ID information of the positioning anchor points, the signal strength RSSI values and the ID of the positioning label, searches the positioning information of the corresponding positioning anchor points through the received ID information of the positioning anchor points, calculating the distance value between the positioning label and each positioning anchor point through the received signal strength RSSI value, and obtaining the indoor positioning information of the positioning label through a positioning algorithm. According to the indoor positioning system, high positioning precision can be obtained, and the requirements of rapid large-area coverage can be met.

Description

technical field [0001] The invention relates to the technical field of positioning. More specifically, the present invention relates to an indoor positioning system. Background technique [0002] With the development and popularization of Internet of Things technology, the connection between people and everything has become increasingly close. As an inherent attribute of a thing, location is in increasing demand. Outdoors, GPS technology can meet the location requirements in most outdoor scenarios, so GPS-based positioning technology has been widely used. As for the indoor environment, since the GPS signal cannot be covered, it cannot be directly applied indoors. At the same time, the indoor environment is more complex than the outdoor environment, although there are already a variety of indoor positioning solutions, such as UWB ultra-wideband, Bluetooth gateway passive positioning, inertial navigation, RFID area detection, etc. However, the high construction cost has al...

Claims

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Application Information

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IPC IPC(8): G01S5/10G01C21/20
Inventor 杨广学
Owner 重庆慧联无限科技有限公司
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