【摘要】 目的为提高诊断学教学质量,设计了基于射频识别(radio frequency identification,RFID)教学模拟人的心肺检查听诊器。方法该设计采用RFID无线识别技术,以实现实时检测功能。通过改善检测点的位置参数以提高教学的灵活性。采用STC15F104W微处理器和125 k Hz的EM4095射频芯片以减少RFID识别电路的功耗和成本。结果通过初步测试,可以在任意部位布点,功耗控制在5 m W内,心肺检查面积与传统的比较扩大了一半。结论该设计方案可以解决教学资源紧缺的问题。更多还原

【Abstract】 Objective In order to improve the teaching quality of diagnostics,we design a stethoscope for cardiopulmonary examination based on radio frequency identification( RFID) teaching simulator. Methods This design realizes real-time detection through the RFID technology,improves the flexibility of teaching by adjusting the position parameters of the detection points. STC15F104 W Microprocessor and the RF chip 125 k Hz EM4095 are used to reduce the power and the cost of RFID identification circuit. Results In preliminary test,this design can detect in any site, power consumption controlled in 5 m W. The cardiopulmonary examination area expands by half compared with the traditional method. Conclusions This design can solve the problem of teaching resource shortage.更多还原