WO2020029595A1 - Electrocardiogram electrode detection method and device - Google Patents

Electrocardiogram electrode detection method and device Download PDF

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Publication number
WO2020029595A1
WO2020029595A1 PCT/CN2019/081296 CN2019081296W WO2020029595A1 WO 2020029595 A1 WO2020029595 A1 WO 2020029595A1 CN 2019081296 W CN2019081296 W CN 2019081296W WO 2020029595 A1 WO2020029595 A1 WO 2020029595A1
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signal
waveform
ecg
signal receiving
pass filtering
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PCT/CN2019/081296
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French (fr)
Chinese (zh)
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周大雨
刘向红
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北京医模科技股份有限公司
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Priority claimed from CN201821271836.5U external-priority patent/CN209328336U/en
Priority claimed from CN201810897138.4A external-priority patent/CN110827641A/en
Application filed by 北京医模科技股份有限公司 filed Critical 北京医模科技股份有限公司
Publication of WO2020029595A1 publication Critical patent/WO2020029595A1/en
Priority to ZA2021/01568A priority Critical patent/ZA202101568B/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine

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  • the invention belongs to the field of medical skills education, and particularly relates to a method and a device for detecting an electrocardiogram electrode.
  • the electrocardiogram is the main basis for the treatment of such diseases. It has the advantages of reliable diagnosis, simple method, and no harm to patients.
  • the ECG signal detected by the electrocardiograph is an important basis for the diagnosis of ECG diseases.
  • the signal is a time-varying potential signal obtained through the electrodes on the surface of the human heart during physiological activities, which contains a wealth of biological information.
  • the ECG signal has important scientific and practical significance and can effectively test and predict the heart-related
  • the electrocardiograph obtains the weak ECG signal of the human body through electrodes and lead wires, and after processing such as amplification and filtering, the waveform of the ECG signal is obtained. Due to the advantages of mature and reliable diagnostic technology, easy operation, affordable price, and no harm to patients, the electrocardiograph has become one of the most popular medical electronic instruments in hospitals at all levels.
  • the teaching content of ECG is mainly focused on the use of ECG equipment. There is no corresponding detection scheme for the correct placement of ECG electrodes and whether the ECG electrodes are connected correctly. Therefore, in the actual use process Often, the ECG signal extraction failure or error is often caused by the wrong position, which easily leads to misdiagnosis or constant re-detection, wasting manpower and material resources, and delaying the illness.
  • the present invention aims to provide a method and a device for detecting an electrocardiogram electrode to overcome the shortcomings in the prior art.
  • the method and device can detect trainer ECG electrode fitting position information, and is used for medical electrode training center electrode electrode fitting training, which solves the problem of lack of training in existing medical teaching and makes ECG detection teaching more intuitive. , Students are more receptive.
  • the technical solution of the present invention is:
  • a method for detecting an electrocardiogram electrode includes the following steps in order:
  • the signal receiving section includes a conductive cloth
  • Waveform signals of different frequencies are generated by a signal processor and transmitted to a signal transmitting section through a first control circuit;
  • the waveform signal of each frequency generated by the signal processor represents an ECG lead position of the simulated person, and the signal transmitting portion can be attached to the simulated human skin through an electrode patch.
  • the electrode patch may form a path with the conductive cloth of the signal receiving section, and the signal receiving section may receive a signal from the signal transmitting section through the path;
  • the signal receiving section transmits the received signal to the waveform signal adjusting section through the second control circuit;
  • the waveform signal adjustment unit transmits the adjusted waveform signal to the signal processor, and transmits the adjusted waveform signal to the display module.
  • the adjustment of the waveform signal by the waveform signal adjusting section includes high-pass filtering, low-pass filtering, and waveform shaping.
  • the display module may be an indicator light or a tone.
  • the first control circuit is provided with five-channel analog switches U6 and U10, and the leads can be switched in time division.
  • the second control circuit is provided with five-channel analog switches U7 and U11, and the leads can be switched in time division.
  • the high-pass filtering means that the waveform signal received by the signal receiving section has a drift phenomenon, and the signal is floated up and down at a baseline of 2.5V by performing high-pass filtering;
  • the low-pass filtering means that the waveform signal received by the signal receiving unit has high-frequency interference phenomenon. By performing low-pass filtering, glitches can be reduced; the waveform shaping means that before the signal received by the signal receiving unit passes through There are already distortions and losses after the path, and the comparators formed by the analog switches U9 and U12 can shape the waveform into a regular waveform signal that can be detected by a single-chip microcomputer.
  • Another aspect provides an ECG electrode detection device, which is characterized by:
  • It includes a simulated person, and a signal receiving part is respectively provided on the lower part of the skin of the simulated person according to the clinical ECG lead position, and the signal receiving part includes a conductive cloth;
  • a signal processor for generating waveform signals of different frequencies, wherein the waveform signal of each frequency represents a ECG lead position of the simulated person;
  • the signal transmitting part is electrically connected to the signal processor through the first control circuit, and can be attached to the simulated human skin through electrodes.
  • the signal transmitting part and the electrode patch are electrically connected.
  • the conductive hydrogel on the electrode patch and The conductive cloth under the simulated human skin forms a conductive medium, which makes the simulated human skin form a conductor, and transmits the waveform signal to the signal receiving section. If the electrode patch is attached to the ECG lead position, the electrode patch can be combined with The conductive cloth of the signal receiving part forms a path through which the signal receiving part can receive a signal from the signal transmitting part;
  • the waveform signal adjusting section is electrically connected to the signal receiving section through a second control circuit on one side, and electrically connected to the signal processor on the other side, and transmits the adjusted waveform signal to the signal processor;
  • the display module is electrically connected with the signal processor, and is used for outputting the information processing result of the processor.
  • the adjustment of the waveform signal by the waveform signal adjustment unit includes high-pass filtering, low-pass filtering, and waveform shaping.
  • ECG electrode detection device of the present invention there are 10 ECG lead positions.
  • the first control circuit is provided with five-channel analog switches U6 and U10, which can switch leads in a time-sharing manner.
  • the second control circuit is provided with five-channel analog switches U7 and U11, and the leads can be switched in time division.
  • the output module may be one of an indicator light or a prompt sound.
  • the high-pass filtering means that the waveform signal received by the signal receiving unit has a drift phenomenon, and the signal is floated up and down at a baseline of 2.5V by performing high-pass filtering;
  • the low-pass filtering means that the waveform signal received by the signal receiving unit has high-frequency interference phenomenon. By performing low-pass filtering, glitches can be reduced; the waveform shaping means that before the signal received by the signal receiving unit passes through There is already distortion and loss after the path.
  • the comparator formed by U8 can shape the waveform into a regular waveform signal that can be detected by a single-chip microcomputer.
  • FIG. 1 is a schematic flowchart of an ECG electrode detection method according to the present invention
  • FIG. 2 is a structural connection diagram of a method and a device for detecting an electrocardiogram electrode according to the present invention
  • FIG. 3 is a connection circuit diagram of a first control circuit and a signal transmitting unit of a method and a device for detecting an electrocardiogram electrode according to the present invention
  • FIG. 4 is a connection circuit diagram of a second control circuit and a signal receiving unit of a method and a device for detecting an electrocardiogram electrode according to the present invention
  • FIG. 5 is a circuit diagram of a waveform signal adjustment unit of a method and device for detecting an electrocardiogram electrode according to the present invention
  • FIG. 6 is a circuit diagram of a power supply part of a method and a device for detecting an electrocardiogram electrode according to the present invention.
  • the method for detecting an electrocardiogram electrode includes the following steps in order:
  • the signal receiving section 4 includes a conductive cloth
  • the signal processor 1 generates waveform signals of different frequencies and transmits them to the signal transmitting unit 3 through the first control circuit 2.
  • the first control circuit 2 is provided with five-channel analog switches U6 and U10, which can be divided. Leads are switched at any time to realize the transmission of waveform signals that simulate the position of human ECG leads;
  • the waveform signal of each frequency generated by the signal processor 1 represents one ECG lead position of the simulated person, and the signal transmitting portion 3 can be attached to the simulated human skin through an electrode patch.
  • the closed position is the ECG lead position, the electrode patch can form a path with the conductive cloth of the signal receiving section 4, and the signal receiving section 4 can receive the signal from the signal transmitting section 3 through the path;
  • the signal receiving section 4 transmits the received signal to the waveform signal adjusting section 6 through the second control circuit 5.
  • the second control circuit 5 is also provided with five-channel analog switches U7 and U11, which can be divided Leads are switched at any time to realize the transmission of waveform signals that simulate the position of human ECG leads;
  • the waveform signal adjustment unit 6 retransmits the adjusted waveform signal to the signal processor 1, and transmits the adjusted waveform signal to the display module 7 through the signal processor 1.
  • the adjustment of the waveform signal by the waveform signal adjustment section 6 includes high-pass filtering, low-pass filtering, and waveform shaping.
  • High-pass filtering refers to a filtering method in which the received PWM waveform signal has a drift phenomenon. By performing high-pass filtering, frequencies higher than a certain cutoff frequency are allowed to pass, and the lower frequencies are greatly attenuated. It removes unnecessary low frequency components or low frequency interference in the signal. As shown in Figure 5, a common second-order RC low-pass filter is used in this circuit. The cut-off frequency is set to 6HZ. Low-frequency interference below 6HZ can be filtered out, so that the PWM waveform signals input to U9 and U12 are stable at the baseline. 2.5V, to provide a more stable signal for the post-stage dual-limit comparator.
  • Low-pass filtering refers to the high-frequency interference phenomenon of the received PWM waveform signal.
  • Low-pass filtering is an electronic filtering method that allows signals below the cutoff frequency to pass, but signals above the cutoff frequency cannot pass.
  • Low-pass filtering can reduce glitches, allowing signals from zero to a certain cutoff frequency to pass without attenuation, while suppressing signals at other frequencies, which can be used to filter out high-frequency interference signals.
  • a common second-order RC low-pass filter is used in this circuit.
  • the cutoff frequency is set to 2500HZ. Spikes and glitches above 2500HZ can be filtered out to prevent the single-chip microcomputer from detecting incorrectly.
  • Waveform shaping means that the PWM waveform signal at the receiving end has been deformed and lost after passing through the previous path.
  • the comparator formed by U8 can shape the waveform into a regular PWM wave that can be detected by a single-chip microcomputer.
  • the principle of the shaping part is:
  • pin 1 of U9 When the input voltage of pin 2 of U9 is greater than the voltage of pin 3, pin 1 of U9 outputs a low level that the microcontroller can recognize;
  • pin 1 of U9 When the input voltage of pin 2 of U9 is less than the voltage of pin 5, pin 1 of U9 outputs a high level that the microcontroller can recognize;
  • pin 1 of U9 When the input voltage of pin 2 of U9 is greater than the voltage of pin 5 and less than pin 3, pin 1 of U9 outputs a low level that the microcontroller can recognize;
  • the output signal waveform is kept consistent with the frequency originally generated by the signal processor 1.
  • a signal receiving section 4 is provided at a corresponding position on the lower part of the simulated human skin.
  • the signal processor 1 generates waveform signals of ten different frequencies, and each waveform signal represents an ECG lead position of the simulated person, and the waveform signal of each frequency and the simulated person can also be considered
  • the signal receiving sections 4 under the skin correspond one-to-one, and the waveform signals of different frequencies generated by the signal processor 1 are transmitted to the signal transmitting section 3 via the time-sharing switching leads of the five-channel analog switches U6 and U10 of the first control circuit 2,
  • the signal transmitting part 3 is located on the electrode patch and is electrically connected to the electrode patch.
  • the conductive hydrogel on the electrode patch and the conductive cloth under the simulated human skin form a conductive medium, so that the simulated human skin forms a conductor, and the waveform signal Transmission to the signal receiving section 4, the signal receiving section 4 transmits the waveform signal to the waveform signal adjusting section 6 through the time-sharing switching leads of the five-channel analog switches U7 and U11 of the second control circuit 5.
  • the waveform signal adjustment unit 6 then outputs the adjusted waveform signal to the display module 7 through the signal processor 1.
  • the signal receiving unit 4 is set according to the clinical ECG lead position information.
  • a conductive path can be formed, and the indicator light of the display module 7 is on or a correct tone is emitted. The light does not turn on or a wrong tone sounds.
  • students can be trained to grasp the ECG electrode attachment position.
  • the present invention further includes a power supply section, which mainly generates a 3.3V voltage required by the signal processor 1, a 5V voltage required for PWM driving, and a 2.5V reference voltage for waveform shaping.
  • the ECG electrode detection method provided by the present invention can express different ECG electrode position information through PWM waveform signals of different frequencies generated by the signal processor 1, and transmit, receive, and output the waveform signals.
  • To detect trainer ECG electrode fitting position information for medical electrode training center electrode fitting training which solves the problem of lack of training in existing medical teaching, makes ECG testing teaching more intuitive, and makes it easier for students accept.
  • FIG. 2 is a module schematic diagram of an ECG electrode detection device according to the present invention (ie, a structural connection diagram of an ECG electrode detection method), and an ECG electrode detection device includes a simulated person.
  • the lower part of the skin is provided with a signal receiving section 4 according to the clinical ECG lead position, and the signal receiving section 4 includes a conductive cloth;
  • the signal transmitting section 3 is electrically connected to the signal processor 1 through the first control circuit 2 and can be attached to the simulated human skin through electrodes.
  • the signal processor 1 is used to generate waveform signals of different frequencies. A waveform signal of this frequency represents a human ECG lead position. If the electrode patch connection position connected to the signal transmitting part 3 is the correct ECG lead position, the electrode patch can be connected to the signal receiving part 4 The conductive cloth forms a path through which the signal receiving section 4 can receive signals from the signal transmitting section 3;
  • the waveform signal adjusting unit 6 is electrically connected to the signal receiving unit 4 through the second control circuit 5 on one side, and electrically connected to the signal processor 1 on the other side, and transmits the adjusted waveform signal to the signal processing again. ⁇ 1;
  • the ECG lead positions are 10, and the signal processor 1 sends out waveform signals of 10 different frequencies, which are transmitted to the signal transmitting section 3 through the first control circuit 2, and the first control
  • the circuit 2 is provided with five-channel analog switches U6 and U10, which can switch leads in a time-sharing manner.
  • the signal transmitting section 3 transmits a waveform signal to the signal receiving section 4.
  • the signal receiving section 4 passes the waveform signal through the waveform via the second control circuit 5.
  • the signal adjustment unit 6 is then transmitted to the signal processor 1.
  • the second control circuit 5 is also provided with a five-channel analog switch U7, U11, the lead can be switched in time-sharing.
  • a signal receiving section 4 is provided at a corresponding position under the simulated human skin.
  • the signal The processor 1 generates waveform signals of different frequencies, and each waveform signal represents an ECG position of the simulated human. It can also be considered that the waveform signal of each frequency and the position of the signal receiving section 4 under the simulated human skin are different.
  • the waveform signals of different frequencies generated by the signal processor 1 are transmitted to the signal transmitting section 3 through the first control circuit 2.
  • the signal transmitting section 3 is located on the electrode patch, the conductive hydrogel on the electrode patch and the simulated human skin
  • the conductive cloth underneath forms a conductive medium, so that the simulated human skin forms a conductor, and transmits the waveform signal to the signal receiving section 4.
  • the signal receiving section 4 transmits the waveform signal to the waveform signal adjusting section 6 through the second control circuit 5, and the waveform signal
  • the adjusting section 6 then outputs the adjusted waveform signal to the display module 7 through the signal processor 1.
  • the signal receiving section 4 is The ECG lead position information is set, so when performing ECG electrode detection, if the trainer's ECG electrode is attached correctly, a conductive path can be formed, and the indicator of the display module 7 lights up or emits a correct tone. If the bonding position is wrong, a conductive path cannot be formed, the indicator light is off, or a wrong prompt sound is issued.
  • students can be trained to grasp the position where the ECG electrodes are attached.
  • the ECG electrode detection device provided by the present invention can represent different ECG electrode position information through PWM waveform signals of different frequencies generated by the signal processor 1, and through the transmission, reception and output of the waveform signals,
  • To detect trainer ECG electrode fitting position information for medical electrode training center electrode fitting training which solves the problem of lack of training in existing medical teaching, makes ECG testing teaching more intuitive, and makes it easier for students accept.

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Abstract

An electrocardiogram electrode detection method and device. The method comprises the following steps: S1, fix, according to a clinical electrocardiogram lead position, a signal receiving part (4) at a corresponding position on the lower portion of a mimic human skin; S2, generate waveform signals having different frequencies by means of a signal processor (1), and transmit the waveform signals to a signal transmitting part (3) by means of a first control circuit (2), wherein the signal transmitting part (3) can be attached to the mimic human skin by means of an electrode patch, the electrode patch forms a path with a conductive fabric of the signal receiving part (4), and the signal receiving part (4) can receive the signals from the signal transmitting part (3) by means of the path; S3, the signal receiving part (4) transmits the received signals to a waveform signal adjusting part (6) by means of a second control circuit (5); and S4, the waveform signal adjusting part (6) further transmits the adjusted waveform signals to the signal processor (1), and transmits same to a display module (7) by means of the signal processor (1). The present invention can be used for the electrocardiogram electrode attachment training in medical teaching and training centers, thereby resolving the problem of the loss of electrocardiogram electrode attachment training in medical teaching centers.

Description

一种心电电极检测方法及装置ECG electrode detection method and device 技术领域Technical field
本发明属于医学技能教育领域，具体涉及一种心电电极检测方法及装置。The invention belongs to the field of medical skills education, and particularly relates to a method and a device for detecting an electrocardiogram electrode.
背景技术Background technique
随着人们生活水平的提高、生活节奏的加快，心血管疾病的发病率迅速上升，已成为威胁人类身体健康的主要因素之一。而心电图则是治疗此类疾病的主要依据，具有诊断可靠，方法简便，对病人无损害的优点，在现代医学中，心电图机检测得到的心电信号是诊断心电疾病的重要依据，心电信号是人类心脏进行生理活动时，通过体表电极采集所得的时变电位信号，包含了丰富的生物学信息，心电信号具有重要的科研价值与实际意义，可有效检验、预测与心脏相关的多种疾病，心电图机通过电极和导联线获取人体的微弱心电信号，通过放大滤波等处理后，得到心电信号的波形。由于心电图机的诊断技术成熟可靠、操作简便、价格适中、对病人无损伤等优点，已成为各级医院中最普及的医用电子仪器之一。With the improvement of people's living standards and the acceleration of the pace of life, the incidence of cardiovascular diseases has risen rapidly and has become one of the main factors threatening human health. The electrocardiogram is the main basis for the treatment of such diseases. It has the advantages of reliable diagnosis, simple method, and no harm to patients. In modern medicine, the ECG signal detected by the electrocardiograph is an important basis for the diagnosis of ECG diseases. The signal is a time-varying potential signal obtained through the electrodes on the surface of the human heart during physiological activities, which contains a wealth of biological information. The ECG signal has important scientific and practical significance and can effectively test and predict the heart-related For a variety of diseases, the electrocardiograph obtains the weak ECG signal of the human body through electrodes and lead wires, and after processing such as amplification and filtering, the waveform of the ECG signal is obtained. Due to the advantages of mature and reliable diagnostic technology, easy operation, affordable price, and no harm to patients, the electrocardiograph has become one of the most popular medical electronic instruments in hospitals at all levels.
目前医学教学中，在进行心电图相关教学内容讲解时主要侧重于心电图设备的使用，对于心电电极贴位置是否正确及心电电极是否连接正确则还没有相应的检测方案，因此，在实际使用过程中，往往因为位置错误而导致心电信号提取失败或错误，容易导致误诊或不断的重新检测，浪费人力物力，耽误病情。At present, in medical teaching, the teaching content of ECG is mainly focused on the use of ECG equipment. There is no corresponding detection scheme for the correct placement of ECG electrodes and whether the ECG electrodes are connected correctly. Therefore, in the actual use process Often, the ECG signal extraction failure or error is often caused by the wrong position, which easily leads to misdiagnosis or constant re-detection, wasting manpower and material resources, and delaying the illness.
随着我国医疗需求和医疗教学的不断发展，医疗模拟教学也越来越需要更贴近临床的教学器材，在医学教学中，面对心电电极贴贴合位置检测训练的缺失，学生学习时，只能通过多媒体或者临床实习来进行，给医学教学工作带来很大的不便。With the continuous development of medical demand and medical teaching in our country, medical simulation teaching also needs more and more clinical teaching equipment. In medical teaching, in the face of the lack of ECG electrode position detection training, when students are studying, It can only be carried out through multimedia or clinical practice, which brings great inconvenience to medical teaching.
发明内容Summary of the invention
本发明旨在提供一种心电电极检测方法及装置，以克服现有技术中存在 的不足。该方法及装置可检测训练者心电电极贴贴合位置信息，用于医学教学培训中心电电极贴贴合训练，解决了现有医学教学中该训练缺失的问题，使心电检测教学更加直观，学生更易于接受。为解决上述技术问题，本发明的技术方案是：The present invention aims to provide a method and a device for detecting an electrocardiogram electrode to overcome the shortcomings in the prior art. The method and device can detect trainer ECG electrode fitting position information, and is used for medical electrode training center electrode electrode fitting training, which solves the problem of lack of training in existing medical teaching and makes ECG detection teaching more intuitive. , Students are more receptive. To solve the above technical problems, the technical solution of the present invention is:
一方面提供一种心电电极检测方法，其特征在于，所述心电电极检测方法依次包括如下步骤：In one aspect, a method for detecting an electrocardiogram electrode is provided, wherein the method for detecting an electrocardiogram electrode includes the following steps in order:
S1、按照临床心电导联位置，在模拟人皮肤下部对应位置固定信号接收部；S1. According to the clinical ECG lead position, fix the signal receiving part at the corresponding position under the simulated human skin;
其中，所述信号接收部包括一导电布；Wherein, the signal receiving section includes a conductive cloth;
S2、通过信号处理器生成不同频率的波形信号，通过第一控制电路传输至信号发射部；S2. Waveform signals of different frequencies are generated by a signal processor and transmitted to a signal transmitting section through a first control circuit;
其中，通过信号处理器生成的每一种频率的波形信号代表模拟人一个心电导联位置，所述信号发射部可通过电极贴片贴合于模拟人皮肤上，如果电极贴片贴合位置为心电导联位置，则所述电极贴片可和所述信号接收部的导电布形成一个通路，所述信号接收部可通过该通路接收来自所述信号发射部的信号；Wherein, the waveform signal of each frequency generated by the signal processor represents an ECG lead position of the simulated person, and the signal transmitting portion can be attached to the simulated human skin through an electrode patch. ECG lead position, the electrode patch may form a path with the conductive cloth of the signal receiving section, and the signal receiving section may receive a signal from the signal transmitting section through the path;
S3、所述信号接收部将接收信号通过第二控制电路传输至波形信号调整部；S3. The signal receiving section transmits the received signal to the waveform signal adjusting section through the second control circuit;
S4、所述波形信号调整部将调整后的波形信号再传输至所述信号处理器，并通过信号处理器传输给显示模块。S4. The waveform signal adjustment unit transmits the adjusted waveform signal to the signal processor, and transmits the adjusted waveform signal to the display module.
作为本发明的一种心电电极检测方法的改进，所述波形信号调整部对波形信号的调整包括高通滤波、低通滤波和波形整形。As an improvement of a method for detecting an electrocardiogram electrode of the present invention, the adjustment of the waveform signal by the waveform signal adjusting section includes high-pass filtering, low-pass filtering, and waveform shaping.
作为本发明的一种心电电极检测方法的改进，所述显示模块可以为指示灯或提示音。As an improvement of a method for detecting an electrocardiogram electrode of the present invention, the display module may be an indicator light or a tone.
作为本发明的一种心电电极检测方法的改进，所述第一控制电路设有五通道模拟开关U6、U10，可分时切换导联。As an improvement of a method for detecting an electrocardiogram electrode of the present invention, the first control circuit is provided with five-channel analog switches U6 and U10, and the leads can be switched in time division.
作为本发明的一种心电电极检测方法的改进，所述第二控制电路设有五通道模拟开关U7、U11，可分时切换导联。As an improvement of a method for detecting an electrocardiogram electrode of the present invention, the second control circuit is provided with five-channel analog switches U7 and U11, and the leads can be switched in time division.
作为本发明的一种心电电极检测方法的改进，所述心电导联位置为10个。As an improvement of a method for detecting an electrocardiogram electrode of the present invention, there are 10 positions of the electrocardiogram lead.
作为本发明的一种心电电极检测方法的改进，所述高通滤波是指，所述信号接收部接收到的波形信号有漂移现象，通过进行高通滤波，使信号在基线2.5V上下浮动；所述低通滤波是指，所述信号接收部接收到的波形信号有高频干扰现象，通过进行低通滤波，可减少毛刺；所述波形整形是指，所述信号接收部接收到的经过之前的通路后已经有变形和损失，通过模拟开关U9、U12构成的比较器可将波形整形为单片机可检测的规整的波形信号。As an improvement of the ECG electrode detection method of the present invention, the high-pass filtering means that the waveform signal received by the signal receiving section has a drift phenomenon, and the signal is floated up and down at a baseline of 2.5V by performing high-pass filtering; The low-pass filtering means that the waveform signal received by the signal receiving unit has high-frequency interference phenomenon. By performing low-pass filtering, glitches can be reduced; the waveform shaping means that before the signal received by the signal receiving unit passes through There are already distortions and losses after the path, and the comparators formed by the analog switches U9 and U12 can shape the waveform into a regular waveform signal that can be detected by a single-chip microcomputer.
另一方面提供一种心电电极检测装置，其特征在于：Another aspect provides an ECG electrode detection device, which is characterized by:
包括模拟人，在所述模拟人的皮肤下部，根据临床心电导联位置分别设有信号接收部，所述信号接收部包括一导电布；It includes a simulated person, and a signal receiving part is respectively provided on the lower part of the skin of the simulated person according to the clinical ECG lead position, and the signal receiving part includes a conductive cloth;
一信号处理器，用于生成不同频率的波形信号，其中，每一种频率的波形信号代表模拟人一个心电导联位置；A signal processor for generating waveform signals of different frequencies, wherein the waveform signal of each frequency represents a ECG lead position of the simulated person;
信号发射部，通过第一控制电路和所述信号处理器电连接，可通过电极贴贴合于模拟人皮肤上，信号发射部和电极贴片电连接，电极贴片上的导电水凝胶和模拟人皮肤下的导电布形成导电介质，使模拟人皮肤形成一个导体，并将波形信号传输至信号接收部，如果电极贴片贴合位置为心电导联位置，则所述电极贴片可和所述信号接收部的导电布形成一个通路，所述信号接收部可通过该通路接收来自所述信号发射部的信号；The signal transmitting part is electrically connected to the signal processor through the first control circuit, and can be attached to the simulated human skin through electrodes. The signal transmitting part and the electrode patch are electrically connected. The conductive hydrogel on the electrode patch and The conductive cloth under the simulated human skin forms a conductive medium, which makes the simulated human skin form a conductor, and transmits the waveform signal to the signal receiving section. If the electrode patch is attached to the ECG lead position, the electrode patch can be combined with The conductive cloth of the signal receiving part forms a path through which the signal receiving part can receive a signal from the signal transmitting part;
波形信号调整部，一侧通过第二控制电路和所述信号接收部电连接，另一个和所述信号处理器电连接，并将调整后的波形信号再传输至所述信号处理器；The waveform signal adjusting section is electrically connected to the signal receiving section through a second control circuit on one side, and electrically connected to the signal processor on the other side, and transmits the adjusted waveform signal to the signal processor;
显示模块，和所述信号处理器电连接，用于处理器处理信息结果的输出。The display module is electrically connected with the signal processor, and is used for outputting the information processing result of the processor.
作为本发明的一种心电电极检测装置的改进，所述波形信号调整部对波形信号的调整包括高通滤波、低通滤波和波形整形。As an improvement of the ECG electrode detection device of the present invention, the adjustment of the waveform signal by the waveform signal adjustment unit includes high-pass filtering, low-pass filtering, and waveform shaping.
作为本发明的一种心电电极检测装置的改进，所述心电导联位置为10个。As an improvement of the ECG electrode detection device of the present invention, there are 10 ECG lead positions.
作为本发明的一种心电电极检测装置的改进，所述第一控制电路设有五通道模拟开关U6、U10，可分时切换导联。As an improvement of the ECG electrode detection device of the present invention, the first control circuit is provided with five-channel analog switches U6 and U10, which can switch leads in a time-sharing manner.
作为本发明的一种心电电极检测装置的改进，所述第二控制电路设有五通道模拟开关U7、U11，可分时切换导联。As an improvement of the ECG electrode detection device of the present invention, the second control circuit is provided with five-channel analog switches U7 and U11, and the leads can be switched in time division.
作为本发明的一种心电电极检测装置的改进，所述输出模块可以为指示 灯或提示音的一种。As an improvement of the ECG electrode detection device of the present invention, the output module may be one of an indicator light or a prompt sound.
作为本发明的一种心电电极检测装置的改进，所述高通滤波是指，所述信号接收部接收到的波形信号有漂移现象，通过进行高通滤波，使信号在基线2.5V上下浮动；所述低通滤波是指，所述信号接收部接收到的波形信号有高频干扰现象，通过进行低通滤波，可减少毛刺；所述波形整形是指，所述信号接收部接收到的经过之前的通路后已经有变形和损失，通过U8构成的比较器可将波形整形为单片机可检测的规整的波形信号。As an improvement of the ECG electrode detection device of the present invention, the high-pass filtering means that the waveform signal received by the signal receiving unit has a drift phenomenon, and the signal is floated up and down at a baseline of 2.5V by performing high-pass filtering; The low-pass filtering means that the waveform signal received by the signal receiving unit has high-frequency interference phenomenon. By performing low-pass filtering, glitches can be reduced; the waveform shaping means that before the signal received by the signal receiving unit passes through There is already distortion and loss after the path. The comparator formed by U8 can shape the waveform into a regular waveform signal that can be detected by a single-chip microcomputer.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without paying creative labor.
图1为本发明一种心电电极检测方法的流程示意图；FIG. 1 is a schematic flowchart of an ECG electrode detection method according to the present invention;
图2为本发明一种心电电极检测方法及装置的结构连接示意图；2 is a structural connection diagram of a method and a device for detecting an electrocardiogram electrode according to the present invention;
图3为本发明一种心电电极检测方法及装置的第一控制电路与信号发射部连接电路图；3 is a connection circuit diagram of a first control circuit and a signal transmitting unit of a method and a device for detecting an electrocardiogram electrode according to the present invention;
图4为本发明一种心电电极检测方法及装置的第二控制电路与信号接收部连接电路图；4 is a connection circuit diagram of a second control circuit and a signal receiving unit of a method and a device for detecting an electrocardiogram electrode according to the present invention;
图5为本发明一种心电电极检测方法及装置的波形信号调整部电路图；5 is a circuit diagram of a waveform signal adjustment unit of a method and device for detecting an electrocardiogram electrode according to the present invention;
图6为本发明一种心电电极检测方法及装置的电源部分电路图。6 is a circuit diagram of a power supply part of a method and a device for detecting an electrocardiogram electrode according to the present invention.
具体实施方式detailed description
以下结合附图通过具体实施例对本发明做进一步的描述，本实施例仅用于说明本发明，并不是对本发明的限制，基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following further describes the present invention through specific embodiments with reference to the accompanying drawings. This embodiment is only used to illustrate the present invention, and is not a limitation on the present invention. Based on the embodiments of the present invention, those skilled in the art have not made any creativity. All other embodiments obtained under the premise of labor belong to the protection scope of the present invention.
如图1所示，提供一种心电电极检测方法，所述心电电极检测方法依次包括如下步骤：As shown in FIG. 1, a method for detecting an electrocardiogram electrode is provided. The method for detecting an electrocardiogram electrode includes the following steps in order:
S1、按照临床心电导联位置，在模拟人皮肤下部对应位置固定信号接收 部4；S1. According to the clinical ECG lead position, fix the signal receiving unit 4 at the corresponding position under the simulated human skin;
其中，所述信号接收部4包括一导电布；Wherein, the signal receiving section 4 includes a conductive cloth;
S2、如图3所示，信号处理器1生成不同频率的波形信号，通过第一控制电路2传输至信号发射部3，第一控制电路2上设有五通道模拟开关U6和U10，可分时切换导联，实现模拟人心电导联位置的波形信号传输；S2. As shown in FIG. 3, the signal processor 1 generates waveform signals of different frequencies and transmits them to the signal transmitting unit 3 through the first control circuit 2. The first control circuit 2 is provided with five-channel analog switches U6 and U10, which can be divided. Leads are switched at any time to realize the transmission of waveform signals that simulate the position of human ECG leads;
其中，通过信号处理器1生成的每一种频率的波形信号代表模拟人的一个心电导联位置，所述信号发射部3可通过电极贴片贴合于模拟人皮肤上，如果电极贴片贴合位置为心电导联位置，则所述电极贴片可和所述信号接收部4的导电布形成一个通路，所述信号接收部4可通过该通路接收来自所述信号发射部3的信号；Wherein, the waveform signal of each frequency generated by the signal processor 1 represents one ECG lead position of the simulated person, and the signal transmitting portion 3 can be attached to the simulated human skin through an electrode patch. The closed position is the ECG lead position, the electrode patch can form a path with the conductive cloth of the signal receiving section 4, and the signal receiving section 4 can receive the signal from the signal transmitting section 3 through the path;
S3、如图4所示，所述信号接收部4将接收信号通过第二控制电路5传输至波形信号调整部6，第二控制电路5上也设有五通道模拟开关U7和U11，可分时切换导联，实现模拟人心电导联位置的波形信号传输；S3. As shown in FIG. 4, the signal receiving section 4 transmits the received signal to the waveform signal adjusting section 6 through the second control circuit 5. The second control circuit 5 is also provided with five-channel analog switches U7 and U11, which can be divided Leads are switched at any time to realize the transmission of waveform signals that simulate the position of human ECG leads;
S4、所述波形信号调整部6将调整后的波形信号再传输至所述信号处理器1，并通过信号处理器1传输给显示模块7。S4. The waveform signal adjustment unit 6 retransmits the adjusted waveform signal to the signal processor 1, and transmits the adjusted waveform signal to the display module 7 through the signal processor 1.
波形信号调整部6对波形信号的调整包括高通滤波、低通滤波和波形整形。The adjustment of the waveform signal by the waveform signal adjustment section 6 includes high-pass filtering, low-pass filtering, and waveform shaping.
高通滤波是指，接收来的PWM波形信号有漂移现象，通过进行高通滤波，允许高于某一截频的频率通过，而大大衰减较低频率的一种滤波方法。它去掉了信号中不必要的低频成分或者说去掉了低频干扰。如图5所示，本电路中使用的是常见的二阶RC低通滤波器，截止频率设置在6HZ，6HZ以下的低频干扰可以被滤除，使输入U9和U12的PWM波形信号稳定在基线2.5V，给后级双限比较器提供一个比较稳定的信号。High-pass filtering refers to a filtering method in which the received PWM waveform signal has a drift phenomenon. By performing high-pass filtering, frequencies higher than a certain cutoff frequency are allowed to pass, and the lower frequencies are greatly attenuated. It removes unnecessary low frequency components or low frequency interference in the signal. As shown in Figure 5, a common second-order RC low-pass filter is used in this circuit. The cut-off frequency is set to 6HZ. Low-frequency interference below 6HZ can be filtered out, so that the PWM waveform signals input to U9 and U12 are stable at the baseline. 2.5V, to provide a more stable signal for the post-stage dual-limit comparator.
低通滤波是指，接收来的PWM波形信号有高频干扰现象，低通滤波是容许低于截止频率的信号通过，但高于截止频率的信号不能通过的电子滤波方法。通过低通滤波处理，可减少毛刺，允许从零到某个截止频率的信号无衰减地通过，而对其他频率的信号有抑制作用，可以用来滤除高频干扰信号。本电路中使用的是常见的二阶RC低通滤波器，截止频率设置在2500HZ，2500HZ以上的尖峰和毛刺可以被滤除，防止单片机误检测。Low-pass filtering refers to the high-frequency interference phenomenon of the received PWM waveform signal. Low-pass filtering is an electronic filtering method that allows signals below the cutoff frequency to pass, but signals above the cutoff frequency cannot pass. Low-pass filtering can reduce glitches, allowing signals from zero to a certain cutoff frequency to pass without attenuation, while suppressing signals at other frequencies, which can be used to filter out high-frequency interference signals. A common second-order RC low-pass filter is used in this circuit. The cutoff frequency is set to 2500HZ. Spikes and glitches above 2500HZ can be filtered out to prevent the single-chip microcomputer from detecting incorrectly.
波形整形是指，接收端的PWM波形信号经过之前的通路后已经有变形 和损失，通过U8构成的比较器可将波形整形为单片机可检测的规整的PWM波，整形部分的原理为：Waveform shaping means that the PWM waveform signal at the receiving end has been deformed and lost after passing through the previous path. The comparator formed by U8 can shape the waveform into a regular PWM wave that can be detected by a single-chip microcomputer. The principle of the shaping part is:
当U9的2脚的输入电压大于3脚的电压时，U9的1脚输出单片机可识别的低电平；When the input voltage of pin 2 of U9 is greater than the voltage of pin 3, pin 1 of U9 outputs a low level that the microcontroller can recognize;
当U9的2脚的输入电压小于5脚的电压时，U9的1脚输出单片机可识别的高电平；When the input voltage of pin 2 of U9 is less than the voltage of pin 5, pin 1 of U9 outputs a high level that the microcontroller can recognize;
当U9的2脚的输入电压大于5脚小于3脚的电压时，U9的1脚输出单片机可识别的低电平；When the input voltage of pin 2 of U9 is greater than the voltage of pin 5 and less than pin 3, pin 1 of U9 outputs a low level that the microcontroller can recognize;
通过波形整形后，使输出的信号波形保持和信号处理器1最初生成的频率一致。After the waveform shaping, the output signal waveform is kept consistent with the frequency originally generated by the signal processor 1.
如图2所示，根据临床十二导联心电检测方法，在临床心电电极贴贴合位置的十个对应点，在模拟人皮肤下部相应位置设置信号接收部4，在本发明提供的心电电极检测方法中，信号处理器1生成十个不同频率的波形信号，每一种频率的波形信号代表模拟人的一个心电导联位置，也可认为每一种频率的波形信号和模拟人皮肤下的信号接收部4一一对应，信号处理器1生成的不同频率的波形信号经第一控制电路2的五通道模拟开关U6、U10的分时切换导联，传输至信号发射部3，信号发射部3位于电极贴片上，和电极贴片电连接，电极贴片上的导电水凝胶和模拟人皮肤下的导电布形成导电介质，使模拟人皮肤形成一个导体，并将波形信号传输至信号接收部4，信号接收部4通过第二控制电路5的五通道模拟开关U7、U11的分时切换导联，将波形信号传送给波形信号调整部6，波形信号调整部6再把调整后的波形信号经信号处理器1输出到显示模块7，在此过程中，由于信号接收部4是按照临床心电导联位置信息进行设置，所以，在进行心电电极检测时，如果训练者心电电极贴位置贴合正确，就可以形成一个导电通路，显示模块7的指示灯亮或者发出正确的提示音，如果贴合位置错误，则无法形成导电通路，指示灯不亮或者发出错误的提示音。通过该心电电极检测方法，可以训练学生对心电电极贴合位置的掌握能力。As shown in FIG. 2, according to the clinical twelve-lead ECG detection method, at the ten corresponding points of the clinical ECG electrode attachment position, a signal receiving section 4 is provided at a corresponding position on the lower part of the simulated human skin. In the ECG electrode detection method, the signal processor 1 generates waveform signals of ten different frequencies, and each waveform signal represents an ECG lead position of the simulated person, and the waveform signal of each frequency and the simulated person can also be considered The signal receiving sections 4 under the skin correspond one-to-one, and the waveform signals of different frequencies generated by the signal processor 1 are transmitted to the signal transmitting section 3 via the time-sharing switching leads of the five-channel analog switches U6 and U10 of the first control circuit 2, The signal transmitting part 3 is located on the electrode patch and is electrically connected to the electrode patch. The conductive hydrogel on the electrode patch and the conductive cloth under the simulated human skin form a conductive medium, so that the simulated human skin forms a conductor, and the waveform signal Transmission to the signal receiving section 4, the signal receiving section 4 transmits the waveform signal to the waveform signal adjusting section 6 through the time-sharing switching leads of the five-channel analog switches U7 and U11 of the second control circuit 5. The waveform signal adjustment unit 6 then outputs the adjusted waveform signal to the display module 7 through the signal processor 1. In this process, since the signal receiving unit 4 is set according to the clinical ECG lead position information, During the detection of the electric electrode, if the trainer's ECG electrode is attached correctly, a conductive path can be formed, and the indicator light of the display module 7 is on or a correct tone is emitted. The light does not turn on or a wrong tone sounds. Through the ECG electrode detection method, students can be trained to grasp the ECG electrode attachment position.
如图6所示，本发明还包括电源部分，主要生成信号处理器1所需3.3V电压、PWM驱动所需的5V电压及波形整形的2.5V参考电压。As shown in FIG. 6, the present invention further includes a power supply section, which mainly generates a 3.3V voltage required by the signal processor 1, a 5V voltage required for PWM driving, and a 2.5V reference voltage for waveform shaping.
综上所述，本发明提供的一种心电电极检测方法，可通过信号处理器1 生成的不同频率的PWM波形信号表示不同的心电电极位置信息，通过波形信号的发射、接收与输出，来检测训练者心电电极贴贴合位置信息，用于医学教学培训中心电电极贴贴合训练，解决了现有医学教学中该训练缺失的问题，使心电检测教学更加直观，学生更易于接受。In summary, the ECG electrode detection method provided by the present invention can express different ECG electrode position information through PWM waveform signals of different frequencies generated by the signal processor 1, and transmit, receive, and output the waveform signals. To detect trainer ECG electrode fitting position information for medical electrode training center electrode fitting training, which solves the problem of lack of training in existing medical teaching, makes ECG testing teaching more intuitive, and makes it easier for students accept.
如图2所示为本发明一种心电电极检测装置的模块示意图(即一种心电电极检测方法的结构连接示意图)，一种心电电极检测装置，包括模拟人，在所述模拟人的皮肤下部，根据临床心电导联位置分别设有信号接收部4，所述信号接收部4包括一导电布；FIG. 2 is a module schematic diagram of an ECG electrode detection device according to the present invention (ie, a structural connection diagram of an ECG electrode detection method), and an ECG electrode detection device includes a simulated person. The lower part of the skin is provided with a signal receiving section 4 according to the clinical ECG lead position, and the signal receiving section 4 includes a conductive cloth;
信号发射部3，通过第一控制电路2和所述信号处理器1电连接，可通过电极贴贴合于模拟人皮肤上，所述信号处理器1用于生成不同频率的波形信号，每一种频率的波形信号代表模拟人一个心电导联位置，如果和信号发射部3连接的电极贴片贴合位置为正确的心电导联位置，则所述电极贴片可和所述信号接收部4的导电布形成一个通路，信号接收部4可通过该通路接收来自所述信号发射部3的信号；The signal transmitting section 3 is electrically connected to the signal processor 1 through the first control circuit 2 and can be attached to the simulated human skin through electrodes. The signal processor 1 is used to generate waveform signals of different frequencies. A waveform signal of this frequency represents a human ECG lead position. If the electrode patch connection position connected to the signal transmitting part 3 is the correct ECG lead position, the electrode patch can be connected to the signal receiving part 4 The conductive cloth forms a path through which the signal receiving section 4 can receive signals from the signal transmitting section 3;
波形信号调整部6，一侧通过第二控制电路5和所述信号接收部4电连接，另一个和所述信号处理器1电连接，并将调整后的波形信号再传输至所述信号处理器1；The waveform signal adjusting unit 6 is electrically connected to the signal receiving unit 4 through the second control circuit 5 on one side, and electrically connected to the signal processor 1 on the other side, and transmits the adjusted waveform signal to the signal processing again.器 1;
如图3、图4所示，所述心电导联位置为10个，信号处理器1发出10种不同频率的波形信号，经第一控制电路2传输至信号发射部3，所述第一控制电路2设有五通道模拟开关U6、U10，可分时切换导联，信号发射部3将波形信号传输至信号接收部4，所述信号接收部4经第二控制电路5将波形信号通过波形信号调整部6后再传输至信号处理器1，经信号处理器1和最初生成的波形信号频率对比后，输出至显示模块7，所述第二控制电路5也设有五通道模拟开关U7、U11，可分时切换导联。As shown in FIG. 3 and FIG. 4, the ECG lead positions are 10, and the signal processor 1 sends out waveform signals of 10 different frequencies, which are transmitted to the signal transmitting section 3 through the first control circuit 2, and the first control The circuit 2 is provided with five-channel analog switches U6 and U10, which can switch leads in a time-sharing manner. The signal transmitting section 3 transmits a waveform signal to the signal receiving section 4. The signal receiving section 4 passes the waveform signal through the waveform via the second control circuit 5. The signal adjustment unit 6 is then transmitted to the signal processor 1. After the frequency comparison between the signal processor 1 and the waveform signal originally generated is output to the display module 7, the second control circuit 5 is also provided with a five-channel analog switch U7, U11, the lead can be switched in time-sharing.
根据临床十二导联心电检测方法，在临床心电电极贴贴合位置的对应点，在模拟人皮肤下部相应位置设置信号接收部4，在本发明提供的心电电极检测装置中，信号处理器1生成不同频率的波形信号，每一种频率的波形信号代表模拟人的一个心电导联位置，也可认为每一种频率的波形信号和模拟人皮肤下的信号接收部4的位置一一对应，信号处理器1生成的不同频率的波 形信号通过第一控制电路2传输至信号发射部3，信号发射部3位于电极贴片上，电极贴片上的导电水凝胶和模拟人皮肤下的导电布形成导电介质，使模拟人皮肤形成一个导体，并将波形信号传输至信号接收部4，信号接收部4通过第二控制电路5将波形信号传送给波形信号调整部6，波形信号调整部6再把调整后的波形信号经信号处理器1输出到显示模块7，在此过程中，由于信号接收部4是按照临床心电导联位置信息进行设置，所以，在进行心电电极检测时，如果训练者心电电极贴位置贴合正确，就可以形成一个导电通路，显示模块7的指示灯亮或者发出正确的提示音，如果贴合位置错误，则不能形成一个导电通路，指示灯不亮或者发出错误的提示音。通过该心电电极检测装置，可以训练学生对心电电极贴合位置的掌握能力。According to the clinical twelve-lead ECG detection method, at the corresponding point of the clinical ECG electrode sticking position, a signal receiving section 4 is provided at a corresponding position under the simulated human skin. In the ECG electrode detection device provided by the present invention, the signal The processor 1 generates waveform signals of different frequencies, and each waveform signal represents an ECG position of the simulated human. It can also be considered that the waveform signal of each frequency and the position of the signal receiving section 4 under the simulated human skin are different. One corresponding, the waveform signals of different frequencies generated by the signal processor 1 are transmitted to the signal transmitting section 3 through the first control circuit 2. The signal transmitting section 3 is located on the electrode patch, the conductive hydrogel on the electrode patch and the simulated human skin The conductive cloth underneath forms a conductive medium, so that the simulated human skin forms a conductor, and transmits the waveform signal to the signal receiving section 4. The signal receiving section 4 transmits the waveform signal to the waveform signal adjusting section 6 through the second control circuit 5, and the waveform signal The adjusting section 6 then outputs the adjusted waveform signal to the display module 7 through the signal processor 1. In this process, since the signal receiving section 4 is The ECG lead position information is set, so when performing ECG electrode detection, if the trainer's ECG electrode is attached correctly, a conductive path can be formed, and the indicator of the display module 7 lights up or emits a correct tone. If the bonding position is wrong, a conductive path cannot be formed, the indicator light is off, or a wrong prompt sound is issued. Through the ECG electrode detection device, students can be trained to grasp the position where the ECG electrodes are attached.
需要说明的是：其中波形信号调整部6的处理方式具体可参见步骤S4中的相关描述，电源部分的处理方式具体参见上述实施例中电源部分的相关描述，此处不再一一赘述。It should be noted that, for the processing method of the waveform signal adjustment unit 6, please refer to the relevant description in step S4. For the processing method of the power source section, please refer to the relevant description of the power source section in the above embodiment, which will not be repeated here.
综上所述，本发明提供的一种心电电极检测装置，可通过信号处理器1生成的不同频率的PWM波形信号表示不同的心电电极位置信息，通过波形信号的发射、接收与输出，来检测训练者心电电极贴贴合位置信息，用于医学教学培训中心电电极贴贴合训练，解决了现有医学教学中该训练缺失的问题，使心电检测教学更加直观，学生更易于接受。In summary, the ECG electrode detection device provided by the present invention can represent different ECG electrode position information through PWM waveform signals of different frequencies generated by the signal processor 1, and through the transmission, reception and output of the waveform signals, To detect trainer ECG electrode fitting position information for medical electrode training center electrode fitting training, which solves the problem of lack of training in existing medical teaching, makes ECG testing teaching more intuitive, and makes it easier for students accept.
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内，不应将权利要求中的任何附图标记视为限制所涉及的权利要求。It is obvious to a person skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, the embodiments are to be regarded as exemplary and non-limiting in every respect, and the scope of the present invention is defined by the appended claims rather than the above description, and therefore is intended to fall within the claims. All changes that are within the meaning and scope of equivalent elements are included in the invention, and any reference signs in the claims should not be construed as limiting the claims involved.
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment includes only an independent technical solution. This description of the specification is for clarity only, and those skilled in the art should take the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (14)

  1. 一种心电电极检测方法，其特征在于，所述心电电极检测方法依次包括如下步骤：A method for detecting an electrocardiogram electrode, wherein the method for detecting an electrocardiogram electrode includes the following steps in order:
    S1、按照临床心电导联位置，在模拟人皮肤下部对应位置固定信号接收部；S1. According to the clinical ECG lead position, fix the signal receiving part at the corresponding position under the simulated human skin;
    其中，所述信号接收部包括一导电布；Wherein, the signal receiving section includes a conductive cloth;
    S2、信号处理器生成不同频率的波形信号，通过第一控制电路传输至信号发射部；S2. The signal processor generates waveform signals of different frequencies and transmits them to the signal transmitting section through the first control circuit;
    其中，通过信号处理器生成的每一种频率的波形信号代表一个心电导联位置，所述信号发射部可通过电极贴片贴合于模拟人皮肤上，如果电极贴片贴合位置为心电导联位置，则所述电极贴片可和所述信号接收部的导电布形成一个通路，所述信号接收部可通过该通路接收来自所述信号发射部的信号；Wherein, the waveform signal of each frequency generated by the signal processor represents a position of the ECG lead, and the signal transmitting part can be attached to the simulated human skin through an electrode patch. If the position of the electrode patch is ECG, The signal patch can form a path with the conductive cloth of the signal receiving section, and the signal receiving section can receive a signal from the signal transmitting section through the path;
    S3、所述信号接收部将接收信号通过第二控制电路传输至波形信号调整部；S3. The signal receiving section transmits the received signal to the waveform signal adjusting section through the second control circuit;
    S4、所述波形信号调整部将调整后的波形信号再传输至所述信号处理器，并通过信号处理器传输给显示模块。S4. The waveform signal adjustment unit transmits the adjusted waveform signal to the signal processor, and transmits the adjusted waveform signal to the display module.
  2. 根据权利要求1所述的一种心电电极检测方法，其特征在于，The method for detecting an electrocardiogram electrode according to claim 1, wherein:
    所述波形信号调整部对波形信号的调整包括高通滤波、低通滤波和波形整形。The adjustment of the waveform signal by the waveform signal adjustment unit includes high-pass filtering, low-pass filtering, and waveform shaping.
  3. 根据权利要求1所述的一种心电电极检测方法，其特征在于，The method for detecting an electrocardiogram electrode according to claim 1, wherein:
    所述显示模块可以为指示灯或提示音。The display module may be an indicator light or a prompt sound.
  4. 根据权利要求1所述的一种心电电极检测方法，其特征在于，The method for detecting an electrocardiogram electrode according to claim 1, wherein:
    所述第一控制电路设有五通道模拟开关U6、U10，可分时切换导联。The first control circuit is provided with five-channel analog switches U6 and U10, which can switch leads in time sharing.
  5. 根据权利要求1所述的一种心电电极检测方法，其特征在于，The method for detecting an electrocardiogram electrode according to claim 1, wherein:
    所述第二控制电路设有五通道模拟开关U7、U11，可分时切换导联。The second control circuit is provided with five-channel analog switches U7 and U11, which can switch leads in time sharing.
  6. 根据权利要求1所述的一种心电电极检测方法，其特征在于，The method for detecting an electrocardiogram electrode according to claim 1, wherein:
    所述心电导联位置为10个。There are 10 ECG leads.
  7. 根据权利要求2所述的一种心电电极检测方法，其特征在于，The method for detecting an electrocardiogram electrode according to claim 2, wherein:
    所述高通滤波是指，所述信号接收部接收到的波形信号有漂移现象，通过进行高通滤波，使信号在基线2.5V上下浮动；所述低通滤波是指，所述信号接收部接收到的波形信号有高频干扰现象，通过进行低通滤波，可减少毛刺；所述波形整形是指，所述信号接收部接收到的经过之前的通路后已经有变形和损失，通过模拟开关U9、U12构成的比较器可将波形整形为单片机可检测的规整的波形信号。The high-pass filtering means that the waveform signal received by the signal receiving unit has a drift phenomenon. By performing high-pass filtering, the signal floats up and down from the baseline of 2.5V; The waveform signal has a high-frequency interference phenomenon. By performing low-pass filtering, glitches can be reduced. The waveform shaping means that the signal receiving section has been deformed and lost after passing the previous path. Through the analog switch U9, The comparator formed by U12 can shape the waveform into a regular waveform signal that can be detected by a single-chip microcomputer.
  8. 一种心电电极检测装置，其特征在于，包括：An electrocardiogram electrode detection device, comprising:
    模拟人，在所述模拟人的皮肤下部，根据临床心电导联位置分别设有信号接收部，所述信号接收部包括一导电布；A human being is simulated, and a signal receiving part is respectively provided at the lower part of the skin of the human being according to the clinical ECG lead position, and the signal receiving part includes a conductive cloth;
    一信号处理器，用于生成不同频率的波形信号；A signal processor for generating waveform signals of different frequencies;
    信号发射部，通过第一控制电路和所述信号处理器电连接，可通过电极贴贴合于模拟人皮肤上；The signal transmitting part is electrically connected to the signal processor through the first control circuit, and can be attached to the skin of the simulated human body through electrodes;
    波形信号调整部，一侧通过第二控制电路和所述信号接收部电连接，另一个和所述信号处理器电连接，并将调整后的波形信号再传输至所述信号处理器；The waveform signal adjusting section is electrically connected to the signal receiving section through a second control circuit on one side, and electrically connected to the signal processor on the other side, and transmits the adjusted waveform signal to the signal processor;
    显示模块，和所述信号处理器电连接，用于信息的输出。The display module is electrically connected to the signal processor and is used for outputting information.
  9. 根据权利要求8所述的一种心电电极检测装置，其特征在于，The ECG electrode detection device according to claim 8, characterized in that:
    所述波形信号调整部对波形信号的调整包括高通滤波、低通滤波和波形整形。The adjustment of the waveform signal by the waveform signal adjustment unit includes high-pass filtering, low-pass filtering, and waveform shaping.
  10. 根据权利要求8所述的一种心电电极检测装置，其特征在于，The ECG electrode detection device according to claim 8, characterized in that:
    所述心电导联位置为10个。There are 10 ECG leads.
  11. 根据权利要求8所述的一种心电电极检测装置，其特征在于，The ECG electrode detection device according to claim 8, characterized in that:
    所述第一控制电路设有五通道模拟开关U6、U10，可分时切换导联。The first control circuit is provided with five-channel analog switches U6 and U10, which can switch leads in time sharing.
  12. 根据权利要求8所述的一种心电电极检测装置，其特征在于，The ECG electrode detection device according to claim 8, characterized in that:
    所述第二控制电路设有五通道模拟开关U7、U11，可分时切换导联。The second control circuit is provided with five-channel analog switches U7 and U11, which can switch leads in time sharing.
  13. 根据权利要求8所述的一种心电电极检测装置，其特征在于，The ECG electrode detection device according to claim 8, characterized in that:
    所述显示模块可以为指示灯或提示音的一种。The display module may be a kind of indicator light or prompt sound.
  14. 根据权利要求9所述的一种心电电极检测装置，其特征在于，The device for detecting an electrocardiogram electrode according to claim 9, wherein:
    所述高通滤波是指，所述信号接收部接收到的波形信号有漂移现象，通过进行高通滤波，使信号在基线2.5V上下浮动；所述低通滤波是指，所述信号接收部接收到的波形信号有高频干扰现象，通过进行低通滤波，可减少毛刺；所述波形整形是指，所述信号接收部接收到的经过之前的通路后已经有变形和损失，通过U8构成的比较器可将波形整形为单片机可检测的规整的波形信号。The high-pass filtering means that the waveform signal received by the signal receiving unit has a drift phenomenon. By performing high-pass filtering, the signal floats up and down from a baseline of 2.5V; the low-pass filtering means that the signal receiving unit receives The waveform signal has a high-frequency interference phenomenon. By performing low-pass filtering, glitches can be reduced; the waveform shaping means that the signal receiving section has been deformed and lost after passing the previous path, and is compared by U8 The device can shape the waveform into a regular waveform signal that can be detected by a single-chip microcomputer.
PCT/CN2019/081296 2018-08-08 2019-04-03 Electrocardiogram electrode detection method and device WO2020029595A1 (en)

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