Patent ID: 8459677

Claim:
A wheelchair apparatus, comprising: a wheelchair comprising a seat, a seat back and an armrest, and at least one of the seat, the seat back and the armrest is provided with a plurality of sensors; a data processing unit configured to process data of the plurality of sensors to analyze a user's posture and action; the data processing unit comprising: a data input interface configured to receive sensed data of the plurality of sensors; a microprocessor configured to analyze the sensed data to estimate the user's posture and action; and a wireless transmission module configured to transmit the user's posture and action to a remote server; wherein the relationship of the user's posture and action and the sensed data comprises at least one of the following: nobody is using the wheelchair when there is no pressure on the seat, the seat back and the armrest; the user intends to be seated when pressure is sensed on the front of the armrest and the front of the seat; the user is seated when pressure is sensed on the rear of the seat and the seat back; and the user intends to stand up when pressure sensed on the seat back and the rear of the seat disappear and pressure is sensed on the armrest.