CN-121982948-A - Multimode bioelectricity detection training equipment and training method

CN121982948ACN 121982948 ACN121982948 ACN 121982948ACN-121982948-A

Abstract

The application relates to the field of practical training teaching, and provides multi-mode bioelectricity detection practical training equipment and a practical training method aiming at the problem of how to reduce equipment cost of bioelectricity physiological detection practical training. The multi-mode bioelectric detection practical training device comprises at least one bioelectric signal sensor module, at least one bioelectric signal isolation module, at least one amplifying module, at least one filtering module, at least one analog-to-digital conversion module and a module replacement interface, wherein the module replacement interface comprises any one or a combination of more of a sensor replacement interface, a signal isolation replacement interface, an amplifying replacement interface, a filtering replacement interface and an analog-to-digital conversion replacement interface. According to the training equipment provided by the embodiment of the application, the requirements of the bioelectrical detection training of multiple detection targets can be met through one training equipment, so that the equipment cost of the bioelectrical detection training is reduced.

Inventors

Request for anonymity
Request for anonymity
Request for anonymity
Request for anonymity

Assignees

北京津发科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20251225

Claims (10)

1. A multi-modal bioelectrical detection training apparatus, the apparatus comprising: at least one bioelectric signal sensor module for acquiring bioelectric signals of a human body; At least one bioelectric signal isolation module for isolating the bioelectric signal sensor module; The amplification module is used for amplifying the bioelectric signals acquired by the bioelectric signal sensor module; The filtering module is used for filtering the amplification result of the amplifying module; the analog-to-digital conversion module is used for converting the analog signals filtered by the filtering module into digital signals; And A module replacement interface, wherein the module replacement interface comprises a combination of any one or more of the following interfaces: a sensor replacement interface for accessing one or more of the at least one bioelectric signal sensor modules, the sensor replacement interface configured to replace the bioelectric signal sensor module to which it is accessed; A bioelectric signal isolation replacement interface for accessing one or more of the at least one bioelectric signal isolation modules, the signal isolation replacement interface configured to replace the bioelectric signal isolation module to which it is accessed; A magnification change interface for accessing one or more of the at least one magnification modules, the magnification change interface configured to change the magnification module to which it is accessed; A filter replacement interface for accessing one or more of the at least one filter modules, the filter replacement interface configured to replace the filter module to which it is accessed; an analog-to-digital conversion replacement interface for accessing one or more of the at least one analog-to-digital conversion modules, the analog-to-digital conversion replacement interface configured to replace an analog-to-digital conversion module to which it is accessed.
2. The device of claim 1, further comprising any one or more of a communication management module, a data transmission module, a storage module, a data interface module, wherein: the communication management module is used for managing communication among different modules in the equipment; The data transmission module is used for outputting detection data and/or detection results; the storage module is used for storing the detection data and/or the detection result; The data interface module is used for providing a standard interface for a control module in the equipment, and the standard interface supports secondary development for realizing a plurality of different programming scenes.
3. The device of claim 1, further comprising a power module, wherein the power module comprises an input side for connection to a human body and an output side for connection to a subsequent circuit, the input side and the output side each using separate power supplies that are isolated from each other.
4. The apparatus according to claim 1, wherein the amplifying module and/or the filtering module is a programmable module.
5. The method of any of claims 1-4, wherein one or more of the bioelectric signal sensor module, the bioelectric signal isolation module, the amplification module, the filtering module, the analog-to-digital conversion module comprise a test interface comprising a test input interface for accessing a test signal, and a test output interface for outputting a test result signal, wherein: The input side of the bioelectric signal isolation module is connected to the bioelectric signal sensor module, the input side of the bioelectric signal isolation module is connected to the amplifying module, the test input interface of the bioelectric signal isolation module is positioned on the input side of the bioelectric signal isolation module, and the test output interface of the bioelectric signal isolation module is positioned on the output side of the bioelectric signal isolation module; And/or the number of the groups of groups, The input side of the amplifying module is connected to the bioelectric signal isolation module, the output side of the amplifying module is connected to the filtering module, and the test input interface of the amplifying module is positioned at the input side of the amplifying module; And/or the number of the groups of groups, The input side of the filtering module is connected to the amplifying module, the output side of the filtering module is connected to the analog-to-digital conversion module, and the test input interface of the filtering module is positioned at the input side of the filtering module; And/or the number of the groups of groups, The input side of the analog-to-digital conversion module is connected to the filtering module, the test input interface of the analog-to-digital conversion module is positioned on the input side of the analog-to-digital conversion module, and the test output interface of the analog-to-digital conversion module is positioned on the digital clock and/or data line port of the analog-to-digital conversion module.
6. A practical training method, characterized in that the method is applied to the apparatus according to any one of claims 1-6, the method comprising: Inputting a test signal to a module to be tested, wherein the module to be tested is any one or more of a bioelectric signal isolation module, an amplifying module, a filtering module and an analog-to-digital conversion module of the equipment; And obtaining a test result according to the output of the module to be tested.
7. The method according to claim 6, characterized in that the method comprises: Connecting the output of the function signal generator to the input end of the bioelectric signal isolation module after connecting the output of the function signal generator to a resistor in series, wherein the resistor is used for simulating the contact impedance of the electrode and the skin; a first channel probe of the dual-channel oscilloscope is connected to the input end of the bioelectric signal isolation module, and a second channel probe is connected to the output end of the bioelectric signal isolation module; Obtaining the test result comprises the following steps: Outputting the test signal by using the function signal generator, wherein the test signal is a sine wave, a first channel and a second channel of the two-channel oscilloscope are expressed as sine waves with the same frequency and the same phase, the amplitude ratio of the sine waves expressed by the first channel and the second channel of the two-channel oscilloscope is 1:1 or fixed unit gain, and the waveform of the sine wave expressed by the second channel of the two-channel oscilloscope is undistorted; And/or the number of the groups of groups, Superposing a common mode signal between the input end of the bioelectric signal isolation module and the ground, wherein a second channel of the dual-channel oscilloscope represents that the common mode signal is restrained; And/or the number of the groups of groups, And under the condition of power failure, measuring the resistance between the input end and the output end of the bioelectric signal isolation module, wherein the resistance value is infinite.
8. The method according to claim 6, characterized in that the method comprises: the output of the function signal generator is connected to the input end of the amplifying module; A first channel probe of the dual-channel oscilloscope is connected to the input end of the amplifying module, and a second channel probe is connected to the output end of the amplifying module; Setting the gain of the amplifying module as a first gain, and obtaining the test result, wherein the method comprises the following steps: Outputting the test signal by using the function signal generator, wherein the test signal is used for simulating a bioelectric signal, a first channel and a second channel of the two-channel oscilloscope are represented by signals with the same frequency and the same phase, the waveform of the signal represented by the second channel of the two-channel oscilloscope is undistorted, and the amplitude ratio of the signal represented by the second channel of the two-channel oscilloscope to the signal represented by the first channel of the two-channel oscilloscope is the first gain; And/or the number of the groups of groups, Superposing a common mode signal between the input end of the amplifying module and the ground, wherein a second channel of the dual-channel oscilloscope indicates that the common mode signal is restrained; And/or the number of the groups of groups, The second channel of the two-channel oscilloscope shows a clean waveform of the signal without truncated distortion.
9. The method according to claim 6, characterized in that the method comprises: The output of the function signal generator is connected to the input end of the filtering module; A first channel probe of the dual-channel oscilloscope is connected to the input end of the filtering module, and a second channel probe is connected to the output end of the filtering module; Setting a high-pass cutoff frequency and a low-pass cutoff frequency of the filtering module, and outputting the test signal by using the function signal generator, wherein the test signal is a composite signal which comprises a low-frequency noise signal for simulating baseline drift, an analog signal for simulating bioelectric signals and a high-frequency noise signal for simulating bioelectric noise; Obtaining the test result comprises the following steps: in the signals represented by the second channel of the two-channel oscilloscope, the components of the high-frequency noise signals are attenuated, and the waveforms of the signals represented by the second channel of the two-channel oscilloscope are smooth; the components of the low-frequency noise signals are restrained in the signals represented by the second channel of the two-channel oscilloscope, and the base line of the signals represented by the second channel of the two-channel oscilloscope is stable; and in the signals represented by the second channel of the two-channel oscilloscope, the analog signals with the highest component ratio are the analog signals, and the waveforms of the signals represented by the second channel of the two-channel oscilloscope are clear.
10. The method according to claim 6, characterized in that the method comprises: Connecting a direct-current voltage source to the input end of the analog-to-digital conversion module, wherein the direct-current voltage source outputs a first voltage, a second voltage output by the analog-to-digital conversion module is read, and the error between the second voltage and the first voltage is within the error specified range of the analog-to-digital conversion module; And/or the number of the groups of groups, The output of the function signal generator is connected to the input end connected to the analog-to-digital conversion module, the logic analyzer is connected to the output end of the analog-to-digital conversion module, the function signal generator outputs analog signals, the logic analyzer captures clock waveforms and data waveforms, and the content of the data waveforms corresponds to the voltage of the analog signals; And/or the number of the groups of groups, The output of the function signal generator is connected to the input end of the analog-to-digital conversion module, the digital channel of the oscilloscope is connected to the output end of the analog-to-digital conversion module, the function signal generator outputs sine waves, and the digital channel of the oscilloscope represents smooth and continuous sine waves without step-shaped quantization distortion or loss points.

Description

Multimode bioelectricity detection training equipment and training method Technical Field The application relates to the field of practical training teaching, in particular to multi-mode bioelectricity detection practical training equipment and a practical training method. Background In talent training, practical teaching training (simply referred to as practical training) is a practical teaching link with the training of the professional practical skill of students and the post adaptability as the core in the teaching process. Different from the conventional experimental teaching mode of the stress theory verification, the practical training teaching mode takes the student's operation in hand as the main part, emphasizes ' middle school ', and forms the skilled professional skills through repeated practice, rather than just observing or recording experimental phenomena. Aiming at bioelectrical physiological detection, practical training equipment for carrying out bioelectrical physiological detection is required to be provided for students in practical training requirements. Because the bioelectricity physiological detection needs to select corresponding special equipment according to different detection targets, in the practical training link, students need to be provided with a plurality of different practical training equipment respectively aiming at different detection targets, and the cost of the practical training equipment for the bioelectricity physiological detection is increased. Therefore, a practical training device for bioelectrophysiological detection is required for the problem of how to reduce the cost of the device for practical training of bioelectrophysiological detection. Disclosure of Invention Aiming at the problem of how to reduce the equipment cost of bioelectricity physiological detection practical training, the application provides multi-mode bioelectricity detection practical training equipment and a practical training method. Specifically, the embodiment of the application adopts the following technical scheme: in a first aspect, the present application provides a multi-modal bioelectrical detection training apparatus, the apparatus comprising: At least one bioelectric signal sensor module for acquiring bioelectric signals of a human body; At least one bioelectric signal isolation module for isolating the bioelectric signal sensor module; The amplification module is used for amplifying the bioelectric signals acquired by the bioelectric signal sensor module; The filtering module is used for filtering the amplification result of the amplifying module; The analog-to-digital conversion module is used for converting the analog signals filtered by the filtering module into digital signals; And A module change interface, wherein the module change interface comprises a combination of any one or more of the following interfaces: A sensor replacement interface for accessing one or more of the at least one bioelectrical signal sensor modules, the sensor replacement interface configured to replace the bioelectrical signal sensor module to which it is accessed; A signal isolation replacement interface for accessing one or more of the at least one bioelectric signal isolation modules, the signal isolation replacement interface configured to replace the bioelectric signal isolation module to which it is accessed; an amplification replacement interface for accessing one or more of the at least one amplification module, the amplification replacement interface configured to replace the accessed amplification module; A filter replacement interface for accessing one or more of the at least one filter modules, the filter replacement interface configured to replace the filter module to which it is accessed; An analog-to-digital conversion exchange interface for accessing one or more of the at least one analog-to-digital conversion modules, the analog-to-digital conversion exchange interface configured to exchange the analog-to-digital conversion modules to which it is accessed. According to the multi-mode bioelectrical detection training device of the first aspect, the module connected to the interface is replaced by the replacement module, so that the same training device can be adapted to different detection targets, and the multi-mode bioelectrical detection can be performed by the training device. The multi-mode bioelectrical detection training apparatus provided in the first aspect may be used for training teaching in a professional post direction (such as a related post of a medical health, psychology, neuroscience, human engineering, man-machine interaction, user experience, education science and the like) where a biological signal collection, analysis and/or processing may be involved in a university of the family, a professional school, etc. According to the multimode bioelectrical detection practical training device of the first aspect, the requirement of the bioelectrical detection practi