Design and development of real-time acquisition and analysis system for electrical parameters of human acupuncture points

To analyze an unknown complex electrical system, it is necessary to simplify the complex electrical system into an equivalent circuit model, then establish the relationship between the voltages and currents of each node and branch in the circuit according to the basic circuit law, and quantify the parameters of the components in the model by analyzing the response signals excited by the input signals. However, the equivalent circuit model is often constructed empirically, and the judgment of model reasonableness is often neglected; the component parameters in the model thus quantified can hardly reflect the actual characteristics of the electrical system. Based on this, in this study, while using fingerprint identification technology for signal acquisition and parameter quantification, we evaluate whether the model used is reasonable by assessing whether the component values obtained can well reproduce the measured response signal. Two equivalent circuit models commonly used for human meridians are used as an example. This system can realize real-time information acquisition and background processing and analysis for the new model, and quickly obtain the electrical parameter values of human acupoints and enter them into the database for call at any time.