The Detection System Of The Human Upper Limb Based On The Hall Sensor

In today's society,most patients with arm fractures or accidental disability should be carried out in the hospital,it brings a lot of inconveniences for the patients in daily lives.The purpose of this study is to make the patient can understand the recovery of their own arm at home,and pass the information through the network to his attending physician to understand his rehabilitation situation,to make real-time updates and improvements for its late rehabilitation,So the study of the human body movement is very helpful for medical and life.Since last century,people have tried to understand the characteristics of human movement,using a variety of ways,such as the biological solution,the human body structure,the human nervous system and other aspects.Now people are starting from the physics point of view to search the issue of human motion.Aiming at the merits and demerits of several kinds of forms of the movement recognition,this paper designs an arm rehabilitation instrument,the arm rehabilitation test system consists of the following three parts: the wearable arm motion-sensing device with the principle of Hall-effect,microprocessor,the PC software system based on Labview.The core idea of this paper is through the electromagnetic detection device,according to the distance,angle and magnetic field relationship,and the signal is converted to voltage signal through the Hall sensor electromagnetic conversion,After a series of analog circuit design and processing,through the A / D conversion the data sent to the host computer,through the host computer on the information processing,the signal through the LCD screen displayed to the rehabilitation of patients,to achieve the detection of the arm of the situation.In order to reduce the relative sliding motion of the sensor and the measured position,the accuracy of the measurement is improved by analyzing the position of the sensor from the medical structure and analyzing the upper limb of the human body.