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Intelligent carpet based on electrode array induction potential difference change

A smart carpet, potential difference technology, applied in the direction of carpet, electric/magnetic exploration, sound wave re-radiation, etc., can solve the problem of no positioning and so on

Pending Publication Date: 2020-09-15
苏州格里德医学传感技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But how does the electric field come from, whether it is active detection, what is the sensor, how is the sensor placed, whether it has the function of positioning, etc., it is not known

Method used

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  • Intelligent carpet based on electrode array induction potential difference change
  • Intelligent carpet based on electrode array induction potential difference change
  • Intelligent carpet based on electrode array induction potential difference change

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Use 4 pieces of foam floor mats to act as a carpet, attach a pair of sensing electrodes to the back of each mat, and connect the wires of the 4 pairs of sensing electrodes to the signal conditioning module; the sensing electrodes are made into two layers of 10cm by 10cm On the PCB board, two rectangular areas of the top layer are covered with copper as electrodes; each pair of electrodes is connected to an analog input port of NI USB 4431, the input mode is pseudo-differential, and the NI USB 4431 acquisition board acts as a signal conditioning and modulus Conversion (AD) module; NI USB 4431 is connected to a notebook computer through USB, and the notebook computer is used as a processor. By writing a processing program for it, the potential difference signals recorded by each pair of electrodes are displayed on the display screen. image 3 , Figure 4 , Figure 5 , Figure 6 Both are schematic diagrams of the real scene and results of monitoring ground movements.

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Abstract

The invention discloses an intelligent carpet, the carpet consists of a carpet body and a ground dynamic sensing system, the intelligent carpet is characterized in that (1) a ground dynamic sensing system (1) is composed of a sensor array, a signal conditioning circuit, an analog-to-digital converter (AD), a processor and the like which are arranged under a carpet, (2) a pair of electrodes at thecentral position of each monitoring area unit of an under-carpet monitoring area are arranged to serve as sensors of the monitoring area unit, and the potential difference change of the pair of electrodes is monitored, (3) based on the basic noise condition of each monitoring area unit when the ground does not act, which is monitored by the ground dynamic sensing system, a judgment threshold valueof whether the ground acts or not is determined, and (4) for the situation that the recorded potential difference signals of the monitoring area units are greater than a judgment threshold, positioning of the actor is realized according to the sorting of the magnitude of the potential difference signals of the monitoring area units, and one or more monitoring area units with the maximum potentialdifference signals are judged as the position of the actor.

Description

technical field [0001] This application relates to a smart carpet. [0002] Home and nursing homes are gradually developing in the direction of intelligence, and the intelligence of carpets is one aspect. Compared with traditional carpets, smart carpets will have more sensors to sense what happens on the ground, such as falls of the elderly, burglary, etc. Background technique [0003] One implementation of smart carpets is the use of smart pressure-sensitive flooring under traditional carpets. The intelligent pressure-sensitive floor, as the name suggests, uses pressure sensors to judge the situation on the ground by detecting the pressure from the ground, such as the elderly falling down and the identification of ground personnel. Its advantage is that it will respond to pressure when the person does not move, and its disadvantage is that it is relatively insensitive to human movements. [0004] There is also a smart carpet based on electromagnetic tomography technology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47G27/02G01V3/08
CPCA47G27/02G01V3/088
Inventor 刘红星刘乐魏宏利
Owner 苏州格里德医学传感技术有限公司
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