Portable Lightweight Brushless Power Wheelchair
With the development of the times, our country has already entered the aging society, and there are nearly 200 million people in the elderly, and more than 80 million people with disabilities. Among the elderly, there are nearly l million people with lower limb mobility, in addition, each year new disasters, injuries and other accidents of lower limb disability of about 500 thousand people. This is a large and special group of pets, the group is the weak society, the need for the care of the whole society, in particular, need a suitable for their psychological and physiological characteristics of the means of transport. Due to the need for assistance from other people, the wheelchair is bound to cause a lot of inconvenience to wheelchair users. Therefore, the development of electric wheelchair is more and more suitable for wheelchair users in daily life. However, the current market sales of electric wheelchairs are mostly cheap, the lowest price in the yuan 2-3 yuan, up to 120 thousand yuan high price. And these are the wheelchair by remote control rod control, although this control method is relatively simple, but there are shortcomings, the function of the hand and upper extremity dysfunction can smooth operation. Therefore, based on the above shortcomings of electric wheelchair, we design a suitable for the majority of the elderly and the disabled wheelchair users, either by hand pressing the keyboard keys or the remote control button to control the wheelchair, and can use voice or body electromyogramemg a part to control the wheelchair. The electric wheelchair designed by our company is made up of the ordinary wheelchair. In the mechanical design, shaft and main structure of original wheelchair was converted, choose the appropriate coupling, bearing and hub, increasing the controller and battery box, while using dual motor control respectively, it is convenient to realize the wheelchair to move forward and backward, turning and braking; in the control, without the use of Brushless motor driving gear, using PWM speed control principle can be free to adjust the speed of motor, the buttons to control the wheelchair through the manual control rod. To realize remote control of the wheelchair using remote APP remote control device.
Intelligent wheelchair power control system