Design On AC Motor And RFID Tag In Medical Model

Medical teaching is directly related to the development of Chinese medical cause. In July 2011,’The guidance of the State Council on the establishment of a system of general practitioners’ has drawn up, which has further promoted the development of the medical education industry. With the rapid development of computer technology, medical teaching model has gradually entered into the high-tech field. In order to serve the medical education and career development better, medical teaching model is the new method of medical education and the development of the industry today. The development and design of medical teaching model utilize the advanced computer technology, control technology and communication technology.In the design of human medical teaching model, somatosensory, physical motion and sound design make the model have a variety of functions, which can meet the requirement of multi-angle, multi-method clinical diagnostic trainings. Based on medical teaching model, this paper proposed the design scheme and completed hardware and software design tasks.The design covers two parts. First, for pulmonary physical movement process, it utilizes AC motor to drive pumps, so it can simulate the expansion and contraction movement of the chest. Through theoretical analysis on Ac motor timing serial, Phase shift governor, Zero-crossing voltage regulation is determined to control the motor speed. After schematics and hardware designing and debugging cooperated with the solenoid valve, eventually it realized AC motor speed control based on C8051F340.Secondly, the RFID (Radio Frequency Identification) positioning system in auscultation area is designed and implemented. The principles and application status of RFID is introduced. In the paper, RFID technology is applied to design electronic stethoscope program. The results of testing shown that the system can achieve 34 different physiological heart sounds.