Constant Voltage Meridian And Acupoints Information Detection System Based On USB Interface

Meridian theory was first put forward in The Yellow Emperor’s Classic of Internal Medicine two thousand and five hundred years ago,which condensed the wisdom of the ancients and was an important part of traditional Chinese medicine.Meridians and Collaterals are the external manifestation of visceral pathological information,and the detection of meridians and collaterals plays an irreplaceable role in guiding the clinical practice.The diseases and pathological changes of the internal organs of the human body will make the conductive substances in the meridians change correspondingly,and then affect the external resistance value of the acupoints in the meridians.The law of this change is the logic we follow in designing the system.In particular,we should pay attention to the micro changes in the resistance value of meridians and collaterals,which is the precursor of potential diseases.Early detection is helpful for early prevention of diseases.We use new technologies to empower large industries.With the traditional meridian theory as the core and modern microcontroller technology as the means,we have developed a Constant Pressure Meridian Information Detection System based on USB Interface.The system collects the electric information of acupoints,transmits the information to the host computer through the USB interface,and the host computer compares the received information with the complete expert database,and finally obtains the detection report on the patient’s whole body health,with the corresponding health guidance opinions attached to the report.The hardware of the system takes the measurement module based on the STM32F103C8T6 chip and the communication module based on the CY7C68013A chip as the core,and realizes the data detection and processing of the electric information of human acupoints.Considering the lack of detection channels,additionally,we use the DG508ACJ chip to realize the 8-channel data detection function.The software design of the system is developed in VC++6.0 environment,mainly including the firmware program design of dual MCU of slave computer,USB device driver design and interactive interface program design.In this paper,the system is partially implemented.In order to facilitate debugging,in the preliminary version,the interactive interface is used to replace the host computer for function realization.The interactive interface supports the user to view the data detection results on the PC side,and also adds the information interaction function on the mobile phone side innovatively,so that the data can be obtained by using wechat code scanning.In order to test the reliability and accuracy of the system,we selected a large number of resistors to simulate human acupoints for experiments.The results show that the error between the measurement results and the theoretical calculation results is within 3%,which shows that the system can accurately measure the electrical information of human acupoints,which is quite satisfactory.To sum up,the system has the advantages of good security,high accuracy,high reliability,good user interaction and so on.It is expected to enter the home appliance market,so that patients can enjoy the professional diagnosis of famous traditional Chinese medicine expert without leaving home.