A sitting posture detection system

Abstract

A sitting posture detection system, the data processing unit is configured to process the data at least according to the following steps to complete the detection of the sitting posture: when the data is stable within a set fluctuation range within a second time, the data is continuously located in the second initial state threshold and the third initial threshold, calculate the second average value of the data in the second time, and update the first initial threshold, the second initial threshold and the third initial threshold based on the second average value, Wherein, the mode corresponding to the sitting posture is determined again based on the updated first initial threshold, second initial threshold and third initial threshold. The sitting posture detection system of the present invention dynamically updates the judgment thresholds of each mode based on the data of the first sensor corresponding to the shoulder and back of the human body, so that the judgment of the data of the second sensor corresponding to the waist and back of the human body has a certain amount of time advance. Time advance warning The occupant adjusts the seat to avoid falling forward.

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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