Sitting posture detection system

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...

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.

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