Active safety control method and device of intelligent wheelchair

Abstract

The invention discloses an active safety control method of an intelligent wheelchair. The active safety control method of the intelligent wheelchair comprises the steps of: S1, respectively acquiringpressure data of four corner positions of the chassis part of the wheelchair in real time through four pressure sensors; S2, performing contrastive analysis on the pressure data acquired by the four pressure sensors through a controller, calculating whether the wheelchair part is at the gravity safety position, if so, executing the step S3, and otherwise, executing the step S4; S3, controlling a transverse moving part and a longitudinal moving part below the wheelchair to move by the controller, so that the wheelchair is at the gravity safety position; S4, controlling the transverse moving part and the longitudinal moving part below the wheelchair to stop moving by the controller; and S5, after completing gravity position adjusting or non-adjusting for one time, resetting data, and executing the steps S1 to S4 again. The invention further discloses a device for realizing the method. By means of the active safety control method and device of the intelligent wheelchair in the invention,rollover can be effectively prevented; and thus, the safety in the driving process is improved.

Description

technical field [0001] The invention relates to the field of wheelchairs, in particular to an active safety control method and device for an intelligent wheelchair. Background technique [0002] The aging trend of my country's population is intensifying. Many elderly people have various types of problems after the deterioration of their lower limb skills. Among them, travel difficulties are the most common and basic problem. Most elderly people cannot walk long distances due to the deterioration of their physical functions. Needing assistance tools, more people choose electric wheelchairs or smart wheelchairs. However, during the travel of electric wheelchairs, the problem of users falling occasionally occurs. Especially when going up and downhill, the problems of toppling forward, falling backward, and rolling over have caused secondary injuries to the user's health. [0003] The technical characteristics of the existing products are as follows: [0004] 1. A common folda...

AI Technical Summary

Problems solved by technology

Although the rear side is designed with anti-dumping wheels, there is still a risk of rearward toppling

And there are no protective measures or remedial measures for rollover on the left and right sides

[0009] The electric wheelchair mentioned above 3 is designed with the seat leveling function when going uphill or downhill, but when going uphill, its center of gravity changes relatively greatly and moves to the rear side more, and the rear side is not designed with anti-dumping wheels. risk of back toppling

In addition, the electric wheelchair has no protective measures or remedial measures for rollover on the left and right sides.

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