Anti-loss monitoring method and positioning device

A positioning device and anti-lost technology, applied in the field of positioning and navigation, can solve problems such as the inability to find an algorithm against the influence of non-direct waves, the inability to receive GPS signals, and errors in positioning results. high precision effect

Inactive Publication Date: 2016-07-20
李明科
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Children's range of activities includes both indoors and outdoors. Since the GPS signal cannot be received indoors, it cannot be used even if it can be used, and it is prone to inaccurate positioning.
The technology that can simultaneously locate indoors and outdoors is mainly cellular network mobile positioning technology, but this technology is still unable to find an algorithm that is generally applicable to the impact of non-direct waves under various conditions, and the positioning accuracy is about 150 meters
However, the existing Bluetooth anti-lost stickers on the market have a positioning range of only 20 meters without obstruction, and the Bluetooth stability is poor, often unable to connect, and non-line-of-sight interference is serious
Indoor wireless positioning technology requires all base station locations to be set in advance. Once the environment changes or the network coverage changes, the final positioning results will have serious errors.

Method used

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  • Anti-loss monitoring method and positioning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 1 Shown, a kind of anti-loss monitoring method, it comprises the following steps:

[0046] (1) The monitor and at least one monitored person obtain their respective current position coordinates through the monitor positioning device worn by themselves and at least one monitored person positioning device, and the monitor positioning device receives each monitored person's positioning device. The location coordinate signal is calculated to obtain the first relative distance and orientation of the two; the two are the monitor and each monitored person.

[0047] (2) Relative distance information calculated by the monitor positioning device based on the RSSI (Received Signal Strength Indication) value of the received signal, that is, the second relative distance between the two, which is obtained based on the RSSI ranging algorithm;

[0048] Obtaining the second relative distance based on the RSSI ranging algorithm is a prior art, and will not be repeated her...

Embodiment 2

[0078] Such as Figure 11 Shown, a kind of anti-lost monitoring system, it comprises intelligent terminal, supervisor's locating device and at least one monitored person's locating device, described monitor's locating device communicates with each monitored person's locating device, and described intelligent terminal and The monitor positioning device is connected by communication to display the current position coordinates of the two, the walking trajectory and the current relative distance and orientation of the two in real time, so that the monitor can understand the relative distance between the monitored person and the monitor in real time, and facilitate the monitoring and prevention of dangerous accidents. occur. The smart terminal can also communicate with each monitored person's positioning device.

[0079] Said each monitored person positioning device includes a left foot ring and a right foot ring respectively worn on the left and right ankles.

[0080] Such as ...

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Abstract

The invention discloses an anti-loss monitoring method and a positioning device. According to the anti-loss monitoring method of the invention, based on pedestrian dead reckoning, a first relative distance between a monitoring person and a monitored person is acquired, a second relative distance between the two is acquired based on an RSSI algorithm, the current relative distance between the two is acquired through judgment and analysis, and if the current relative distance exceeds a preset safety distance, an alarm is given, and the monitoring person is reminded and happening of safety accidents can be prevented. The method is simple, convenient and easy to realize, the safety distance is adjustable, the precision is high, the reaction is quick, and automatic alarming can be realized.

Description

technical field [0001] The invention relates to the field of positioning and navigation, in particular to an anti-loss monitoring method and a positioning device. Background technique [0002] In reality, a parent often leads one or more children aged 2 to 10 to go shopping or park. How parents determine the relative distance and direction between themselves and their children is a difficult problem. Children's range of activities includes both indoors and outdoors. Since the GPS signal cannot be received indoors, it cannot be used even if it can be used, and it is prone to inaccurate positioning. The technology that can simultaneously locate indoors and outdoors is mainly cellular network mobile positioning technology, but this technology is still unable to find an algorithm that is generally applicable to the impact of non-direct waves under various conditions, and the positioning accuracy is about 150 meters. However, the existing Bluetooth anti-lost patches on the mark...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S11/02G01S11/06G01S11/14H04W64/00
CPCG01S11/02G01S11/06G01S11/14H04W64/00
Inventor 李明科蒋孝勇
Owner 李明科
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