Control system of imbedded type intelligent wheel chair and its method

A control system and embedded technology, applied in the field of robotics, can solve the problems of high price, large control system volume, poor scalability, etc., and achieve the effect of avoiding collisions

Inactive Publication Date: 2006-09-13
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, most smart wheelchairs are controlled by PCs (or laptops). The control system is bulky, expensive, and poor in scalability, and there is still a certain distance from commercial production.

Method used

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  • Control system of imbedded type intelligent wheel chair and its method
  • Control system of imbedded type intelligent wheel chair and its method
  • Control system of imbedded type intelligent wheel chair and its method

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] See figure 1 , as shown in 2, the present invention is a control system for an intelligent wheelchair, including a controller (1) for processing environmental information and giving control instructions, a sensor (2) for detecting the environment in which the wheelchair operates, a sensor for receiving The joystick (3) commanded by the user, and a motor-driven template (4) that amplifies the control signal and converts it into a drive signal; wherein, the controller (1) converts the position information of the joystick (3) through the A / D converter After being collected, the environmental information is obtained through the sensor (2), and after comprehensive processing, it is converted into a control signal, and the signal is transmitted to the motor drive template (4) through the I / O port, and the motor driver drives the corresponding motor to comple...

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Abstract

An embedded intelligent control system for wheelchair is composed of a controller for processing ambient information and giving out control instructions, an ultrasonic sensor for detecting the running ambience, a joystick for receiving user commands, a control switch for changing the running mode, and a driver circuit of motor. Its control method includes such steps as sending square waves by PWM unit, waiting for the ultrasonic echo by DSP, proper delaying, starting A / D conversion module, acquiring the position information of joystick, and controlling the drive output to PWM.

Description

technical field [0001] The invention relates to the technical field of robots, in particular to an embedded intelligent wheelchair control system and method. Background technique [0002] With the acceleration of the aging process of the world's population and the increase of disabled people due to disasters and diseases, how to let the elderly and disabled people regain the ability to move independently is a scientific and technological problem that needs to be solved urgently. Wheelchairs, as the elderly and disabled One of the main means of transportation for people, mainly manual wheelchairs and electric wheelchairs. It is inconvenient and dangerous to use in some environments. For example, when passing through narrow doors or long and narrow corridors, it will be difficult for electric wheelchairs to pass smoothly through manipulation; When used, it often causes unexpected dangers due to improper manipulation. [0003] Because smart wheelchairs can recognize the envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61G5/04B25J9/16H02P7/00
Inventor 原魁鲁涛朱海兵李剑锋
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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