Sitting posture detection system

A detection system and sitting posture technology, applied in the field of intelligent analysis, can solve problems affecting accuracy, sensor data fluctuations, sensor sensitivity and range changes, etc., to avoid falling forward, eliminate data deviation, and alleviate sensitivity and range changes Effect

Active Publication Date: 2018-11-27
深圳中云创新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology will inevitably encounter the following problems during use: (1) The sensor with high sensitivity has high requirements on the installation process, and when the installation position is set incorrectly when it leaves the factory, it will always be subject to a large Extrusion force; (2) Interference such as radio frequency interference, high-voltage static electricity, and surge voltage will cause fluctuations or offsets in sensor data; (3) When the sensor is installed in a seat cushion, for example, due to the material properties of the seat cushion and the sensor, After a period of use, the sensitivity and range of the sensor will change; (4) During the actual use of the chair, the user may place other objects such as clothes or pillows on the detection part, and the behavior other than the human body will affect the data of the sensor. Interference can affect the accuracy of judgment
However, it does not consider the unstable defects of the data collected by the sensor, and does not establish a correction mechanism to correct the data collected by the sensor, and cannot obtain a high recognition accuracy rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The present invention provides a sitting posture detection method and system, the sitting posture detection system at least includes a data acquisition unit 1, a data processing unit 2 and a control unit 3, wherein the data acquisition unit is used to collect, for example, pressure data or distance data, and the data processing unit 2 In the case of establishing a correction mechanism, the data collected by the data acquisition unit is analyzed and processed to obtain available data for judging the user's sitting posture, and the control unit is used to control the work of the data acquisition unit and the data processing unit and can be based on the data generated by the data processing unit The data can be used to generate control commands to control the operation of other hardware modules. For example, when the sitting posture recognition judges that the user is in a forward leaning or non-standard sitting posture, the control unit generates a control signal to contro...

Embodiment 2

[0053] This embodiment is a further improvement on Embodiment 1, and repeated content will not be repeated here.

[0054] The sitting posture detection system also includes a voice output unit 4, a mobile terminal 5 and an alarm 6, wherein the sitting posture detection system can be set on a wheelchair or a seat. In the case of , the user can complete the data collection of the first mode, the second mode and the third mode based on the voice prompt information output by the voice output unit 4 of the seat. For example, when the seat is turned on for the first time, the seat needs to remove the heavy object on the seat back through a voice prompt and let it stand for 10 seconds to complete the collection of the first mode data by the sitting posture detection system, and the collected data is the second mode. The pressure data collected by the first sensor and the second sensor within the 10s period can be obtained by linear fitting to obtain a time-pressure change curve. The...

Embodiment 3

[0059] This embodiment is a further improvement on the foregoing embodiments, and repeated content will not be repeated here.

[0060] The invention also provides a method for preventing the seated person from falling forward. Set up a sitting posture detection system on, for example, a sofa, a wheelchair or a seat. Taking a wheelchair as an example, a first sensor and a second sensor are arranged on the backrest of the wheelchair, wherein the first sensor is arranged on the backrest corresponding to the shoulder and back of the human body, and the second sensor is arranged on the backrest corresponding to the lower back of the human body. Location. For example, when an elderly person with inconvenient legs and feet is sitting on a wheelchair, under normal circumstances, the elderly person will slightly lean back and lean his entire lower back against the backrest to obtain a more comfortable sitting posture. In the cold winter, for example, in order to ensure the warmth and...

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Abstract

The invention discloses a sitting posture detection system. A data processing unit is configured to process data at least according to following steps to complete sitting posture detection: calculating a second average value of data in second time when the data are continuously positioned within a range limited by a second initial value and a third initial value by means of being stabilized in a set fluctuation range in the second time, updating a first initial threshold value, a second initial threshold value and a third initial threshold value on the basis of the second average value, and re-judging a mode corresponding to sitting posture on the basis of the first initial threshold value, the second initial threshold value and the third initial threshold value after being updated. The sitting posture detection system dynamically updates judging threshold value of each mode on the basis of data of first sensors corresponding to shoulders and the back of a human body to enable judgingof data of second sensors corresponding to the shoulders and the back of the human body to have certain time lead, so that sitting personnel can be pre-warned by certain time lead to adjust a seat soas to avoid forward falling.

Description

technical field [0001] The invention belongs to the technical field of intelligent analysis, and in particular relates to a sitting posture detection system. Background technique [0002] With the continuous advancement of science and technology and the rapid construction of smart cities, technology is gradually integrating into people's daily life, bringing us convenience and comfort. With the aging of the world's population, the number of people with disabilities, including the disabled, is increasing. As wheelchairs are used as a means of transportation for people with disabilities, the elderly, and other people with disabilities, the sitting posture of users on wheelchairs directly affects their safety. Sitting with a large degree of inclination or fatigue often cause users to fall from the wheelchair . At the same time, more and more office workers usually work at the desk all day long, and maintaining a sitting position for a long time will seriously endanger their he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C7/62A47C31/12
CPCA47C7/62A47C31/126
Inventor 郭延锐杨翔宇黄帅黄海川郭佳
Owner 深圳中云创新技术有限公司
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