Dynamic Impedance Measurement And Model Identification Of Human Meridians Based On LabView

There is a long history of research about meridians in Traditional Chinese Medicine. And combined with bioelectrical impedance measurement technology, meridians research is now a hot topic. As a non-invasive and nondestructive testing technology, the bioelectrical impedance detecting method has much more advantages in clinical application and clinical research than other measurement technologies. According to the theory of Traditional Chinese Medicine, there exists important relationship between different kinds of internal organs and meridians which could respond human body's disease information. In addition, the information could be acquired comprehensively through the original acupuncture of corresponding meridian. Therefore, a dynamic impedance detecting system is designed and implemented based on Virtual Instrument-LabView. Besides, the method to identify the parameters of impedance model is proposed based on data mining using identification theories. In summary, this analysis method explores a new way in impedance research objectively.Generally speaking, there are four parts of research work in this dissertation as following:(1) Constructing the software and hardware platform of dynamic impedance system based on LabView. In this part, study work includes elaborating the function and significance of this platform, introducing each part of hardware and the technology of Virtual Instrument in software parts, and eventually, presenting the system block diagram.(2) Reproducibility analysis and testing experiments study of dynamic impedance detecting system. In this part, research work includes analyzing stability and reproducibility of the platform based on Hausdorff distance. Furthermore, the advanced Hausdorff distance is proposed according to experiment data. And conclusion shows this method could acquire better results.(3) Modeling of meridians impedance and identifying of model parameters. In this part, study work includes analyzing the impedance model and existing problems in early research, constructing the partial meridians impedance models using parameter identification combined with control theory.(4) Monitoring and experiments research of the dynamic impedance in twelve meridians. In this part, study work includes experiments research and data mining, discussing the theory of meridians resonance and meridians flowing according the features of data. In association with online identification technology, the research results in this dissertation could extract characteristics of physiological and pathological information in next study work. And this information could be used in monitoring human healthy state, the preliminary disease diagnosis and so on. In conclusion, there is important significance of theoretical research of this method and we could expect a brilliant application prospect in clinical.