CN206044624U - A kind of horse Wearable electrocardiosignal acquisition system - Google Patents

Abstract

The utility model relates to a wearable ECG signal acquisition system for horses, and its technical feature is that it includes a wearable ECG signal collector and an ECG signal processor, and the wearable ECG signal The harness is bound and fixed on the horse and the three fabric electrodes detachably pasted on the inner side of the harness, the three fabric electrodes are respectively connected with the fabric electrode interface of the ECG signal processor through the lead wires. The connection is used to transmit the collected ECG signal of the horse to the ECG signal processor for processing. The utility model changes the immovability of the traditional electrocardiogram collection equipment and the sensitization of the traditional viscous electrodes. The three fabric electrodes are detachably pasted and fixed on the inner side of the horseback belt, providing better comfort for users of the wearable ECG collector, more convenient and convenient, and the quality of the signal waveform reaches the collection quality of traditional electrodes.

Description

A wearable ECG signal acquisition system for horses

technical field

The utility model belongs to the technical field of biological signal identification and processing, in particular to a wearable ECG signal acquisition system for horses.

Background technique

At present, the application of electrocardiogram in the medical field to check the heart function has become an indispensable means. In the process of health monitoring, wearable ECG monitoring equipment can be easily worn on the body without affecting its normal life, and it can continuously monitor the heart for a long time, effectively providing important ECG in the dangerous period of the disease. The signal basis brings many conveniences for medical staff to quickly and accurately diagnose heart disease.

The wearable realization of ECG signal acquisition aims to enable users to realize continuous monitoring of ECG signals in a comfortable way, and the monitoring time can reach 24 hours to about 1 week. In addition, the quality of the collected ECG signals is required to meet the requirements of clinical monitoring. This puts forward great requirements for the selection of electrode materials, which must not only meet the comfort of the acquisition process, but also be able to acquire high-quality signals. At present, the electrodes used for human ECG signal acquisition usually use a disposable Ag/AgCl electrode. The ECG signal collected by the Ag/AgCl electrode has a clear waveform, stable signal, and little interference. However, the Ag/AgCl electrode is a one-time use product and cannot be reused, and the built-in electrolyte of the electrode is irritating to the skin. Long-term use will cause skin allergies and other symptoms. Even for animals, the wearing time is also very limited. Within 24 hours, even if the electrodes are replaced with new ones, it is difficult for the skin to tolerate allergic stimulation for a longer period of time. For example, LifeShirt uses traditional Ag/AgCl electrodes in ECG measurement, which is not suitable for long-term wear.

The veterinary community also attaches great importance to the application of animal electrocardiograms. Electrocardiography (ECG) is a technology that uses an electrocardiogram machine to record the electrical activity changes generated by each cardiac cycle of the heart from the body surface. It is of great significance for the health detection and evaluation of animals.

Due to the characteristics of animals different from humans, poor controllability and large moving space, the quality of ECG signals obtained by using traditional ECG signal acquisition equipment may not be able to achieve the purpose of practical use. Not only is the ECG signal acquisition method inconvenient, but also The data collected from the above-mentioned ECG signals are used for experiments, and the experimental results may not be reliable for clinical application.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a wearable ECG signal acquisition system for horses with reasonable design, strong controllability, stable and accurate ECG signal acquisition, and long-term continuous monitoring.

The utility model solves its technical problem and realizes by taking the following technical solutions:

A wearable ECG signal acquisition system for horses, comprising a wearable ECG signal collector and an ECG signal processor, the wearable ECG signal collector includes a horse harness for binding on a horse and Three fabric electrodes detachably installed on the inner side of the horse harness, the three fabric electrodes are respectively connected to the fabric electrode interface of the ECG signal processor through the lead wires, and are used to connect the collected horse's heart The electric signal is transmitted to the ECG signal processor for processing.

Moreover, at least two paste strips are fixedly installed on one side of the inside of the harness, and at least one paste strip is fixedly installed on the other side of the inside of the harness; the three fabric electrodes are respectively connected to the corresponding paste strips. connect.

Moreover, three sticking strips are fixed symmetrically on the left and right sides of the inside of the harness, the first fabric electrode is connected with the third sticking strip on the right side, the second fabric electrode is connected with the third sticking strip on the left side, and the third sticking strip is connected with the third sticking strip on the left side. The fabric electrode is connected to the first adhesive strip on the left.

Moreover, the ECG signal processor includes a casing and an internal control circuit thereof, and the control circuit includes an ECG signal denoising module, an A/D conversion module and an MCU embedded platform with a built-in power supply module; The input end of the signal denoising module is connected with the fabric electrode interface, the output end of the ECG signal denoising module is connected with the A/D conversion module, and the output end of the A/D conversion module is embedded with the MCU of the built-in power module connected to the platform.

And, the output end of the MCU embedded platform of described built-in power supply module is connected with memory module, LCD display module and button module respectively; Described memory module is connected with the SD card slot on the casing, and described LCD display module It is connected with the LCD display screen on the casing, and the key module is connected with the control buttons on the casing.

Moreover, the ECG signal denoising module includes a preamplifier circuit, a low-pass filter and a bandpass filter circuit connected in sequence; the input end of the preamplifier circuit is connected to the fabric electrode interface, and the output of the bandpass filter circuit The terminal is connected with the A/D conversion module.

Moreover, the A/D conversion module includes an amplifier and an A/D converter connected in sequence, the input end of the amplifier is connected to the output end of the band-pass filter circuit, the output end of the A/D converter is connected to the built-in The input terminal of the MCU embedded platform of the power module is connected.

Moreover, the MCU embedded platform with the built-in power supply module uses an STM32 control chip, the A/D conversion module uses an ADS1298 conversion chip, and the LCD display module uses an MHDR2X12 display chip.

Moreover, the band-pass filter circuit is a 50HZ band-pass filter circuit.

Advantage and positive effect of the present utility model are:

1. The utility model is composed of a wearable ECG signal collector connected to an ECG signal processor. The wearable ECG signal collector includes a horse harness for binding on a horse and a detachably mounted horse harness. The three fabric electrodes on the inner side of the harness, in the process of collecting the horse's ECG signal, the wearable ECG signal collector for horses of the utility model can be easily tied to the horse without affecting its normal activities. The noise of the ECG signal is small, which changes the traditional ECG signal acquisition method, which is more convenient and convenient, and the quality of the collected signal is also very stable.

2. The utility model adopts a comfortable fabric electrode. The fabric uses silver-plated polyester material as the conductive medium. The silver-plated polyester material is less irritating to the skin, and its own impedance is low, so it has better conductivity. Traditional disposable electrodes are more comfortable and will not compromise signal quality over extended periods of use. The use of the fabric electrode is beneficial to improving the accuracy and stability of electrocardiographic signal collection; the collected electrocardiographic signal is reliable and accurate, conforms to medical significance, and can be used for health monitoring and evaluation of the electrocardiographic signal of horses.

3. The wearable ECG signal collector and ECG signal processor of the present invention are bound to the horse during the process of collecting the ECG signal of the horse, which can overcome the characteristics of poor controllability and large moving space of animals. Realize the long-term continuous monitoring of the horse's heart, effectively provide important ECG signal evidence in the dangerous period of the disease, and bring many conveniences for the medical staff to quickly and accurately diagnose heart disease.

4. The wearable ECG signal collector of the present invention changes the immovability of traditional ECG collection equipment and the allergenicity of traditional viscous electrodes. The three fabric electrodes are detachably installed on the inside of the horseback belt, providing better comfort for users of the wearable ECG collector, more convenient and convenient, and the quality of the signal waveform reaches the collection quality of traditional electrodes.

5. The casing of the ECG signal processor of the present utility model is provided with an SD card slot, and the ECG signal data collected by the ECG signal collector is stored in the SD card, and the SD card is pulled out after the ECG signal is completed, and then Save the electrical signal data in the SD card to the host computer. Therefore, the reliability of data storage is ensured, and the problems of ECG signal collection, transmission and processing of horses with poor controllability and large moving space are solved.

Description of drawings

Fig. 1 is a schematic diagram of the connection structure of the wearable ECG signal collector and the ECG signal processor of the present invention;

Fig. 2 is the internal control circuit block diagram of the utility model ECG signal processor;

Fig. 3 is the MCU embedded platform circuit diagram of the utility model ECG signal processor;

Fig. 4 is the AD conversion module circuit diagram of the utility model ECG signal processor;

Fig. 5 is the circuit diagram of the preamplifier circuit and the low-pass filter circuit of the ECG signal processor of the present invention;

Fig. 6 is the 50HZ band-pass filter circuit diagram of the utility model ECG signal processor;

Fig. 7 is the circuit diagram of the LCD display module of the ECG signal processor of the present invention;

Fig. 8 is a circuit diagram of a storage module of the ECG signal processor of the present invention;

Fig. 9 is the waveform under the static state of the horse collected by the utility model;

Fig. 10 is the waveform under the horse walking state that the utility model collects;

Fig. 11 is the waveform change in the process of the horse walking and running collected by the utility model;

Fig. 12 is the waveform when the horse runs that the utility model collects;

Fig. 13 is the waveform change in the process of the horse running to walking collected by the utility model;

Fig. 14 is a schematic diagram of an overview of the 12-lead waveform of the horse of the present invention.

Explanation of reference signs:

1-first fabric electrode; 2-second fabric electrode; 3-third fabric electrode.

detailed description

Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail:

A wearable ECG signal acquisition system for horses, as shown in Figure 1, includes a wearable ECG signal collector and an ECG signal processor, and the wearable ECG signal collector includes a The harness on the horse and the three fabric electrodes detachably pasted on the inside of the harness, the three fabric electrodes are respectively connected to the fabric electrode interface of the ECG signal processor through the lead wires, for The collected ECG signal of the horse is transmitted to the ECG signal processor for processing.

At least two sticking strips are fixed on one side of the inner side of the harness, and at least one sticking strip is fixed on the other side of the inner side of the harness; the three fabric electrodes are respectively connected to the corresponding sticking strips.

Among them, the first fabric electrode is located in the lower third of the sixth intercostal space on the left side of the horse, and is used to measure the potential difference between the first fabric electrode and the third fabric electrode; the second fabric electrode is located in the extension of the sixth intercostal space on the right side of the heart. On the line, ensure that the horse's heart is at the midpoint of the lead axis of the first fabric electrode and the second fabric electrode, and is used to measure the potential difference between the second fabric electrode and the third fabric electrode; the third fabric electrode is located on the right side of the horse. The symmetrical position of the first fabric electrode on the side is used for grounding.

In this embodiment, there are six adhesive strips fixed on the inner side of the harness, and three adhesive strips are fixed symmetrically on the left and right sides respectively, from left to right: the first adhesive strip on the left, the second adhesive strip on the left Sticking strips, the third sticking strip on the left side, the first sticking strip on the right side, the second sticking strip on the right side and the third sticking strip on the right side; wherein, the first fabric electrode is connected with the third sticking strip on the right side, and the second fabric electrode The electrodes are connected to the third adhesive strip on the left, and the third fabric electrodes are connected to the first adhesive strip on the left.

In this embodiment, a total of six sticking strips for connecting the fabric electrodes are fixed on the inner side of the harness, and the three fabric electrodes can be connected with one of the sticking strips arbitrarily to suit the size of the body. Not uniform for various types of horses.

Described electrocardiogram signal processor comprises casing and its inner control circuit, as shown in Figure 2, described control circuit comprises the MCU embedded platform of electrocardiogram signal denoising module, A/D conversion module, built-in power supply module, Storage module, LCD display module and button module; The input end of described ECG signal denoising module is connected with fabric electrode interface, the output end of this ECG signal denoising module is connected with A/D conversion module, and described A The output end of /D conversion module is connected with the MCU embedded platform of built-in power supply module, and the output end of the MCU embedded platform of described built-in power supply module is connected with storage module, LCD display module and button module respectively; Described storage module It is connected with the SD card slot on the casing, the LCD display module is connected with the LCD display screen on the casing, and the button module is connected with the control buttons on the casing to realize corresponding storage and display and button functions. In this embodiment, the control buttons include a cancel button and a power switch button.

The electrocardiographic signal denoising module includes a preamplifier circuit, a low-pass filter and a bandpass filter circuit connected in sequence; the input end of the preamplifier circuit is connected with the fabric electrode interface, and the output end of the bandpass filter circuit is connected with the fabric electrode interface. A/D conversion module is connected. In this embodiment, the band-pass filter circuit is a 50HZ band-pass filter circuit.

The A/D conversion module includes an amplifier and an A/D converter connected in sequence, the input of the amplifier is connected to the output of the bandpass filter circuit, and the output of the A/D converter is connected to the built-in power supply module connected to the input of the MCU embedded platform.

The MCU embedded platform with the built-in power supply module uses an STM32 control chip, the A/D conversion module uses an ADS1298 conversion chip, and the LCD display module uses an MHDR2X12 display chip.

Fig. 3 to Fig. 8 are respectively the MCU embedded platform circuit diagram of the ECG signal processor of the present invention; the AD conversion module circuit diagram of the ECG signal processor of the present utility model; The circuit diagram of the low-pass filter circuit; the 50HZ band-pass filter circuit diagram of the utility model ECG signal processor; the utility model ECG signal processor LCD display module circuit diagram; the utility model ECG signal processor storage module circuit diagram.

The working principle of the utility model is:

1. Connect the wearable ECG signal collector and ECG signal processor

First, buckle the three fabric electrodes to three lead wires of different colors respectively, as shown in Figure 1, connect the three fabric electrodes to the three adhesive strips at the corresponding positions on the inner side of the horseback strap; then, connect the three lead wires The other end of the connecting line is connected with the electrode interface on the casing of the ECG processor.

2. Acquisition of ECG signal data

Use the wearable ECG collector to collect the horse's ECG signal data, and generate a folder within 5 minutes.

3. Save ECG data

After the horse's ECG signal data is collected, pull out the SD card, save the collected ECG signal data to the host computer, rename the folder and make a record.

In order to verify the accuracy and stability of the ECG signal collected by the wearable ECG signal acquisition device, the ECG signal collected by the utility model is compared with the cardiac cycle of the traditional twelve leads, as shown in Figures 9 to 13 The utility model collects the ECG waveforms of horses at rest, walking, from walking to running, running and from running to walking, as shown in Figure 14 for an overview of the 12-lead waveforms of horses. It can be seen from the comparison in the figure that compared with the 12-lead waveform, the continuous waveform collected by the wearable ECG signal acquisition device is also relatively stable, indicating that the ECG signal collected by the wearable ECG signal acquisition device is accurate. , stable and of medical significance.

It should be emphasized that the embodiments described in the utility model are illustrative rather than restrictive, so the utility model includes but not limited to the embodiments described in the specific implementation, and those skilled in the art according to the utility model Other implementations derived from the new technical solution also belong to the scope of protection of the utility model.

Claims (9)

1. a kind of horse Wearable electrocardiosignal acquisition system, it is characterised in that：Including Wearable electrocardiosignal harvester With ECG's data compression device, the Wearable electrocardiosignal harvester includes the horseback band for being bundled on length and removable Unload three textile electrodes on the inside of the horseback band, three textile electrodes pass through conducting wire and the heart respectively The textile electrode interface of electric signal processor is connected, for the electrocardiosignal of the horse of collection is transmitted to ECG's data compression device Processed.

2. a kind of horse Wearable electrocardiosignal acquisition system according to claim 1, it is characterised in that：In the horse One side on the inside of brace is at least fixed with two bonding strips, and the another side on the inside of the horseback band is at least fixed with a stickup Bar；Three textile electrodes are connected with corresponding bonding strip respectively.

3. a kind of horse Wearable electrocardiosignal acquisition system according to claim 1 and 2, it is characterised in that：Institute State the right and left on the inside of horseback band and be respectively symmetrically and be fixed with three bonding strips, the first textile electrode and the 3rd bonding strip phase of right side Connection, the second textile electrode are connected with the 3rd bonding strip of left side, and the 3rd textile electrode is connected with the first bonding strip of left side.

4. a kind of horse Wearable electrocardiosignal acquisition system according to claim 1 and 2, it is characterised in that：It is described ECG's data compression device includes the control circuit of casing and its inside, and the control circuit includes electrocardiosignal denoising module, A/D The MCU embedded platforms of modular converter and built-in power module；The input and textile electrode of the electrocardiosignal denoising module Interface is connected, and the outfan of the electrocardiosignal denoising module is connected with A/D modular converters, the A/D modular converters it is defeated Go out end to be connected with the MCU embedded platforms of built-in power module.

5. a kind of horse Wearable electrocardiosignal acquisition system according to claim 4, it is characterised in that：It is described built-in The outfan of the MCU embedded platforms of power module is connected with memory module, LCD display module and key-press module respectively；Institute State memory module to be connected with the SD card draw-in groove in casing, the LCD display module is connected with the LCD display in casing, The key-press module is connected with the control button in casing.

6. a kind of horse Wearable electrocardiosignal acquisition system according to claim 5, it is characterised in that：The electrocardio Signal denoising module includes pre-amplification circuit, low-pass filtering and the bandwidth-limited circuit being sequentially connected；The preposition amplification electricity The input on road is connected with textile electrode interface, and the outfan of bandwidth-limited circuit is connected with A/D modular converters.

7. a kind of horse Wearable electrocardiosignal acquisition system according to claim 6, it is characterised in that：The A/D Modular converter includes the amplifier being sequentially connected and A/D converter, and the input of the amplifier is defeated with bandwidth-limited circuit Go out end to be connected, the outfan of the A/D converter is connected with the input of the MCU embedded platforms of built-in power module.

8. a kind of horse Wearable electrocardiosignal acquisition system according to claim 7, it is characterised in that：It is described built-in The MCU embedded platforms of power module adopt STM32 control chips, the A/D modular converters to adopt ADS1298 conversion chips, The LCD display module adopts MHDR2X12 display chips.

9. a kind of horse Wearable electrocardiosignal acquisition system according to claim 6, it is characterised in that：The band logical Filter circuit is 50HZ bandwidth-limited circuits.