Indoor person marking and positioning method based on pressure sensing

A positioning method and pressure sensor technology are applied in the field of indoor personnel marking and positioning, which can solve the problems of complexity, misjudgment of indoor positioning system, error of indoor positioning system, etc.

Pending Publication Date: 2022-03-25
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, considering that in real life, there are a large number of moving phenomena of household items, which will cause misjudgments in the pressure-based indoor positioning system and even cause the system to crash.
Not only that, because the process of personnel movement is relatively complicated, it is impossible to accurately judge the identity of the current mobile personnel simply by relying on the movement trajectory and gravity changes of indoor personnel.
Pressure-aware based indoor positioning systems are prone to errors when multiple people are moving in the house

Method used

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  • Indoor person marking and positioning method based on pressure sensing
  • Indoor person marking and positioning method based on pressure sensing
  • Indoor person marking and positioning method based on pressure sensing

Examples

Experimental program
Comparison scheme
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Embodiment

[0089] For ease of understanding, Figure 4 An example of a localization system applying a pressure-sensing-based indoor occupant marker localization algorithm is given. In the figure, C is the central node, and I, J, K, L, M, and N are indoor positioning nodes.

[0090] Such as figure 1 As shown, the specific implementation steps of the indoor personnel marker positioning algorithm based on pressure perception in this embodiment are as follows:

[0091] Step S1: The indoor positioning system detects whether there is a person in the room according to the current person list record in the room; if there is, go to step S9, otherwise go to step S2.

[0092] Step S2: All the positioning nodes in the room enter the sleep mode, and the nodes perform pressure signal reset processing according to the current collected values ​​of the pressure sensors.

[0093] In this embodiment, since the positioning function is not enabled in the current step, the pressure coordinates obtained by...

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Abstract

The invention discloses an indoor personnel marking and positioning method based on pressure sensing, and the method comprises the following steps: firstly, executing an agreement or refusal function according to the information that a person requests to enter a house, and recording the number of the person; secondly, pressure data transmission and internal positioning related parameter initialization are carried out on all positioning nodes in the residence; when the system starts positioning, positioning coordinates are calculated according to the numerical value of the pressure sensor, the position of a person is sent to the center node of the system, and when the person leaves the area, the node and an adjacent node carry out information interaction until the adjacent positioning node sends positioning information. According to the invention, the defect that the original indoor positioning technology based on pressure induction is interfered by other articles is overcome, and the current positions of all indoor people can be correctly displayed.

Description

technical field [0001] The invention belongs to the technical field of smart home positioning, and relates to an indoor personnel marking and positioning method for marking mobile personnel based on pressure perception. Background technique [0002] Indoor positioning technology can assist the smart home system to determine the location of indoor personnel, so as to provide corresponding services for indoor personnel. Unlike outdoor positioning technologies such as GPS, indoor positioning technology needs to provide fast and accurate positioning in a closed, complex, and multi-signal environment. At present, the common indoor positioning technologies such as Bluetooth and geomagnetism in the market are greatly affected by interference sources and indoor structures. A large number of pressure sensors are laid under the floor, and the position of the indoor personnel is calculated according to the collected pressure signals, which can avoid the interference of indoor wireless...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02G01L5/00H04W4/021H04W4/33H04W4/38H04W40/10H04W40/20H04W84/18G07C9/32G07C9/38
CPCH04W4/025G01L5/00H04W4/021H04W4/33H04W4/38H04W40/10H04W40/20H04W84/18G07C9/32G07C9/38
Inventor 李中伟姜文淇程丽金显吉贾崇伟陆浩维马梓涵
Owner HARBIN INST OF TECH
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