An electrophysiological signal compensation system and compensation method

Abstract

The application relates to an electro-physiological signal compensation system and a compensation method. The electro-physiological signal compensation system comprises a working electrode, an impedance test system, a signal compensation system and a signal processing system; the working electrode is attached to the skin surface of a patient, used for collecting original electro-physiological signals of the patient and transmitting the original electro-physiological signals to the signal processing system; the impedance test system is used for collecting internal resistance data of the working electrode and transmitting the resistance data to the signal compensation system; the signal compensation system is used for calculating a signal needing compensation according to the resistance data and transmitting the compensation signal to the signal processing system; and the signal processing system is used for adding the original electro-physiological signals and the compensation signal to obtain compensated electro-physiological signals. According to the application, the signal compensation system is used to calculate the signal needing compensation, the signal processing system is used to add the original electro-physiological signals and the compensation signal to obtain the compensated electro-physiological signals, and thus the signal quality is greatly improved.

Description

Technical Field

[0001] This application belongs to the field of physiological signal processing technology, and specifically relates to an electrophysiological signal compensation system and compensation method. Background Technology

[0002] Electrophysiological signals are among the most important physiological signals, aiding in the study of physiological states, application in disease diagnosis and treatment, and emerging fields of artificial intelligence such as brain-computer interfaces. Electrophysiological signals are caused by the ion concentration difference across the cell membrane. In a resting state, a quiescent potential is generated; during activity, an action potential is generated. The generation of each potential is related to a person's physiological state and behavior. Therefore, accurate, real-time, and efficient detection of electrophysiological signals is crucial.

[0003] Commonly used electrophysiological signal detection techniques include electrocardiography (ECG), electromyography (EMG), and electroencephalography (EEG). An ECG helps doctors understand the heart's rhythm. An EMG, based on muscle contractions, can help people with disabilities regain some or all of their motor skills. An EEG is helpful in the diagnosis and treatment of brain diseases, such as Alzheimer's disease and Parkinson's disease.

[0004] In existing technologies, common electrical signal acquisition systems include electrodes, signal amplifiers and converters, signal processors, and displays. Electrodes, used to acquire electrophysiological signals, are a crucial core component and hold a significant position. However, during electrode service, the contact impedance changes in real time, causing the electrical signal to fluctuate over time, greatly degrading signal quality. Summary of the Invention

[0005] This application provides an electrophysiological signal compensation system and method, which aims to at least partially solve one of the aforementioned technical problems in the prior art.

[0006] To address the above problems, this application provides the following technical solution:

[0007] An electrophysiological signal compensation system includes a working electrode, an impedance testing system, a signal compensation system, and a signal processing system; the working electrode, the impedance testing system, the signal compensation system, and the signal processing system are connected in sequence.

[0008] The working electrode is attached to the patient's skin surface to collect the patient's raw electrophysiological signals and transmit the raw electrophysiological signals to the signal processing system;

[0009] The impedance testing system is used to collect the internal resistance data of the working electrode and transmit the resistance data to the signal compensation system.

[0010] The signal compensation system is used to calculate the signal that needs to be compensated based on the resistance data and transmit the compensated signal to the signal processing system.

[0011] The signal processing system is used to add the original electrophysiological signal and the compensation signal to obtain the compensated electrophysiological signal.

[0012] The technical solution adopted in this application embodiment also includes a reference electrode. The reference electrode and the working electrode are respectively connected to the signal processing system. The reference electrode is used for circuit conduction and voltage difference formation. The reference electrode, the working electrode and the signal processing system form a loop system.

[0013] The technical solution adopted in this application embodiment further includes: the signal compensation system calculates the signal that needs to be compensated based on the resistance data as follows:

[0014] The signal compensation system calculates the signal to be compensated based on resistance data using the Ohm algorithm; the formula for calculating the compensation signal is: U = IR; where U is the compensation voltage, I is the monitoring current, and R is the resistance data.

[0015] The technical solution adopted in this application embodiment further includes: the signal processing system adding the original electrophysiological signal and the compensation signal specifically as follows:

[0016] The signal processing system adds the original electrophysiological signal and the compensation signal by addition to obtain the compensated electrophysiological signal.

[0017] The technical solution adopted in this application embodiment also includes: the impedance testing system is an AC impedance testing system or a DC resistance analysis system.

[0018] The technical solution adopted in this application embodiment also includes: the original electrophysiological signal includes electroencephalogram (EEG) signal, electromyogram (EMG) signal, or electrocardiogram (ECG) signal.

[0019] Another technical solution adopted in this application embodiment is: an electrophysiological signal compensation method, including:

[0020] Raw electrophysiological signals from patients are acquired using working electrodes and transmitted to a signal processing system.

[0021] The internal resistance data of the working electrode is collected by an impedance testing system and the resistance data is transmitted to a signal compensation system.

[0022] The signal compensation system calculates the signal that needs to be compensated based on the resistance data and then transmits the compensated signal to the signal processing system.

[0023] The original electrophysiological signal and the compensation signal are added together by the signal processing system to obtain the compensated electrophysiological signal.

[0024] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: The electrophysiological signal compensation system and compensation method of the embodiments of this application acquire the original electrophysiological signal through electrodes, monitor the resistance change through an impedance testing system, and transmit the resistance data to the signal compensation system. After the signal compensation system calculates the signal to be compensated, the original electrophysiological signal and the compensation signal are added together by the signal processing system to obtain the compensated electrophysiological signal, thereby greatly improving the signal quality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the electrophysiological signal compensation system according to an embodiment of this application;

[0026] Figure 2 This is a flowchart of an electrophysiological signal compensation method according to an embodiment of this application. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] To address the shortcomings of existing technologies, the electrophysiological signal compensation system of this application collects raw electrophysiological signals through electrodes, then monitors resistance changes through an impedance testing system connected to the electrodes, and transmits the resistance data to the signal compensation system. After calculating the signal that needs to be compensated, the signal compensation system compensates the raw electrophysiological signal to obtain a completely new electrophysiological signal, thereby greatly improving the signal quality.

[0029] Specifically, please refer to Figure 1This is a schematic diagram of the electrophysiological signal compensation system according to an embodiment of this application. The electrophysiological signal compensation system of this embodiment includes a reference electrode 1, a working electrode 2, an impedance testing system 3, a signal compensation system 4, and a signal processing system 5. The reference electrode 1 and the working electrode 2 are respectively connected to the signal processing system 5. The reference electrode 1 is used for circuit conduction and voltage difference generation, while the working electrode 2 is used for receiving charge and electrophysiological signals. The reference electrode 1, working electrode 2, and signal processing system 5 form a loop system. The working electrode 2, impedance testing system 3, signal compensation system 4, and signal processing system 5 are connected sequentially. The working electrode 2 is attached to the patient's skin surface, and the original electrophysiological signal is acquired based on the generated contact impedance and transmitted to the signal processing system 5. The impedance testing system 3 is used to acquire the internal resistance data (internal resistance) of the working electrode 2 in real time and transmits the resistance data to the signal compensation system 4. The signal compensation system 4 calculates the signal to be compensated based on the resistance data using an Ohm's law and transmits the compensated signal to the signal processing system 5. The signal processing system 5 adds the original electrophysiological signal and the compensated signal through an addition operation to obtain the compensated electrophysiological signal.

[0030] In this embodiment of the application, the calculation formula for the compensation signal of the signal compensation system 4 is: U = IR; where U is the compensation voltage, I is the monitoring current, and R is the internal resistance data of the working electrode 2.

[0031] In this embodiment, the impedance testing system 3 includes, but is not limited to, an AC impedance testing system or a DC resistance analysis system.

[0032] The electrophysiological signal compensation system of this application embodiment can be applied to various types of electrophysiological detection systems, such as mobile, fixed or wearable systems, and is suitable for compensating various electrophysiological signals such as electroencephalogram (EEG), electromyography (EMG), and electrocardiogram (ECG).

[0033] Based on the above, the electrophysiological signal compensation system of this application acquires the original electrophysiological signal through electrodes, monitors the resistance change through an impedance testing system, and transmits the resistance data to the signal compensation system. After the signal compensation system calculates the signal that needs to be compensated, the original electrophysiological signal and the compensated signal are added by the signal processing system to obtain the compensated electrophysiological signal, thereby greatly improving the signal quality.

[0034] Please see Figure 2 This is a flowchart of an electrophysiological signal compensation method according to an embodiment of this application. The electrophysiological signal compensation method according to an embodiment of this application includes the following steps:

[0035] S1: The working electrode is attached to the patient's skin surface. The working electrode collects the patient's raw electrophysiological signals based on the generated contact impedance and transmits the raw electrophysiological signals to the signal processing system.

[0036] S2: The internal resistance data of the working electrode is acquired in real time through the impedance testing system, and the resistance data is transmitted to the signal compensation system.

[0037] S3: The signal compensation system calculates the signal that needs to be compensated based on the resistance data using the Ohm algorithm, and then transmits the compensated signal to the signal processing system.

[0038] S4: The original electrophysiological signal and the compensation signal are added together by the signal processing system using addition to obtain the compensated electrophysiological signal.

[0039] Based on the above, the electrophysiological signal compensation method of this application acquires the original electrophysiological signal through electrodes, monitors the resistance change through an impedance testing system, transmits the resistance data to a signal compensation system, calculates the signal to be compensated through the signal compensation system, and adds the original electrophysiological signal and the compensated signal through a signal processing system to obtain the compensated electrophysiological signal, thereby greatly improving the signal quality.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrophysiological signal compensation system, characterized in that, It includes a working electrode, an impedance testing system, a signal compensation system, and a signal processing system; the working electrode, the impedance testing system, the signal compensation system, and the signal processing system are connected in sequence. The working electrode is attached to the patient's skin surface to collect the patient's raw electrophysiological signals and transmit the raw electrophysiological signals to the signal processing system; The impedance testing system is used to collect the internal resistance data of the working electrode and transmit the resistance data to the signal compensation system. The signal compensation system is used to calculate the signal that needs to be compensated based on the resistance data and transmit the compensated signal to the signal processing system. The signal processing system is used to add the original electrophysiological signal and the compensation signal to obtain the compensated electrophysiological signal; wherein: The signal compensation system calculates the signal that needs compensation based on the resistance data as follows: The signal compensation system calculates the signal to be compensated based on resistance data using the Ohm algorithm; the formula for calculating the compensation signal is: U=IR; where U is the compensation voltage, I is the monitoring current, and R is the resistance data.

2. The electrophysiological signal compensation system according to claim 1, characterized in that, It also includes a reference electrode, which is used to conduct the circuit and form a voltage difference. The reference electrode and the working electrode are respectively connected to the signal processing system, and the reference electrode, the working electrode and the signal processing system form a loop system.

3. The electrophysiological signal compensation system according to claim 2, characterized in that, The signal processing system adds the original electrophysiological signal and the compensation signal specifically as follows: The signal processing system adds the original electrophysiological signal and the compensation signal by addition to obtain the compensated electrophysiological signal.

4. The electrophysiological signal compensation system according to claim 1, characterized in that, The impedance testing system is either an AC impedance testing system or a DC resistance analysis system.

5. The electrophysiological signal compensation system according to claim 1, characterized in that, The original electrophysiological signals include, but are not limited to, electroencephalogram (EEG) signals, electromyogram (EMG) signals, or electrocardiogram (ECG) signals.

6. A method for compensating electrophysiological signals using the electrophysiological signal compensation system of claim 1, characterized in that, include: Raw electrophysiological signals from patients are acquired using working electrodes and transmitted to a signal processing system. The internal resistance data of the working electrode is collected by an impedance testing system and the resistance data is transmitted to a signal compensation system. The signal compensation system calculates the signal that needs to be compensated based on the resistance data and then transmits the compensated signal to the signal processing system. The original electrophysiological signal and the compensation signal are added together by the signal processing system to obtain the compensated electrophysiological signal.

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