Device and method for identifying passenger type and sitting posture based on sitting trace

Abstract

The invention relates to a device and method for identifying the passenger type and sitting posture based on a sitting trace, which are used for the decision of an intelligent passenger restraining system in automobile passive safety. The method comprises the following steps of: acquiring the dot matrix information of a sensing array according to a switching signal on a measurement sensor array to form the sitting trace of a passenger; comparing the dot matrix information with the typical dot matrix information of all kinds of passengers pre-stored in a memory; and identifying the passenger type most approaching to the dot matrix and the sitting posture of the passenger. In the invention, a switch array is used as a measurement sensor, thus the cost is low and the service life is long; any modification on the seat structure is not required, the device is convenient and quick to install and has a wide application range; and the device can be used as a real-time recorder for the hip movement of the passenger.

Description

technical field [0001] The invention relates to a passenger type on a car seat and a device and method for recognizing the sitting posture thereof, which are used for decision-making of an intelligent occupant restraint system in the passive safety of the car according to the recognition result. And it can be used as a real-time recorder of the passenger's hip movement. Background technique [0002] Seat belts and airbags are the most effective occupant protection measures when a car collides. But so far, most of the regulations on the protection of occupants in collisions in various countries only stipulate the protection standards for the 50th percentile of male drivers and occupants in normal riding postures under a certain collision intensity (US Federal Motor Vehicle Safety Regulations No. 208 adds Protection requirements for 5th percentile female and child occupants). [0003] Ordinary airbag systems designed according to the normal seating position and 50th percenti...

AI Technical Summary

Problems solved by technology

[0006] Currently existing passenger identification devices such as passenger identification devices with independent frame structures (patent publication number: CN101462525A), passenger identification devices using two load sensors (patent publication number: CN101462526A), passenger identification devices (patent publication number: CN101654091A), they are characterized in that on the load-bearing structure of the seat, a weight sensor is designed to identify the mass of the passenger, and then determine the body type of the passenger, so the seat frame structure needs to be modified to install the load sensor, and they cannot Judging whether the seat is a passenger or a general item, and the riding posture of the occupant cannot be judged. The installation of the recognition device is complicated, and the price of the recognition system is relatively high.

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