CN204260739U - Electrocardiographic quality of data real-time control system - Google Patents

Abstract

The utility model relates to an electrocardiogram data quality real-time control system, comprising an ECG signal acquisition module, a first ECG data communication module, an ECG data quality control module, an ECG data management module, a second ECG data communication module and an ECG data processing module. The real-time control system of electrocardiogram data quality proposed by the utility model is accurate, simple, efficient and fast. When used in conjunction with its monitoring system, it can simultaneously realize the function of collecting electrocardiogram signals and controlling the quality of electrocardiogram data, ensuring that the monitored electrocardiogram signals All are effective signals of quality compliance, improving the accuracy, effectiveness and practicability of the entire monitoring system.

Description

Real-time Control System of Electrocardiogram Data Quality

technical field

The utility model relates to the field of information quality control, specifically a real-time control system for electrocardiogram (ECG) data quality.

Background technique

Electrocardiogram (ECG) measures myocardial electrical signals that change over time, which is an important basis for judging human health status and cardiovascular and other diseases. With the development of information and communication technology, portable ECG monitoring equipment has been widely used in people's daily and remote health monitoring due to its characteristics of simple use, portability and low price.

The mainstream portable ECG monitoring system on the market consists of three modules: ECG data acquisition, ECG data transmission, and ECG data processing. Among them, the data acquisition module collects ECG signals through the direct contact of the lead electrodes with the human body, the data transmission module transmits the collected ECG signals to mobile devices such as smartphones by means of technologies such as Bluetooth, and the data processing module processes the received ECG data. processing, analysis and diagnosis.

Most of the existing portable ECG monitoring systems are used for daily health tracking and early warning of individuals or family members. In actual use, a large amount of invalid ECG data is often collected. The main reasons are as follows:

1) The user lacks relevant professional knowledge and equipment use skills, and the equipment use method is not standardized or even correct;

2) During the use process, due to the user’s moving state, the device’s working condition is abnormal (such as the lead electrode falling off the human body, etc.), but the user does not notice it in time;

3) The surrounding environment causes the collected ECG signal to contain a large proportion of interference noise.

Invalid ECG signals are also known as the data quality of ECG signals is not up to standard, that is, it is impossible to make accurate and scientific analysis and diagnosis of the user's heart health based on these ECG signals. A large amount of low-quality data not only reduces the accuracy, effectiveness and practicability of the entire monitoring system, but also causes a large waste of equipment resources and users' time and energy.

Utility model content

The main purpose of the present utility model is to provide a real-time control system for electrocardiogram data quality in view of the deficiencies in the above-mentioned prior art.

The technical solution adopted by the utility model to solve the existing technical problems is: a real-time control system for data quality of an electrocardiogram, including an ECG signal acquisition module, a first ECG data communication module, an ECG data quality control module, an ECG data management module, and a second ECG data management module. 2. ECG data communication module and ECG data processing module;

Wherein, the ECG signal acquisition module is used to collect ECG signals from the collection object, the first ECG data communication module is used to send the collected ECG signals to the ECG data quality control module, and the ECG data quality control module detects and judges Whether there is no ECG signal, whether the ECG signal is seriously missing, whether all or part of the ECG signal is a horizontal line, whether the ECG signal has a large fluctuation range, whether the ECG signal has serious noise interference, whether the ECG signal is not a human ECG signal, If any of the above abnormal phenomena exists, it is judged that the quality of the ECG signal is not up to standard, and if all the detection items of the ECG signal are normal, it is judged that the quality of the EGC signal is up to standard;

The ECG data management module stores and manages the ECG signal, the second ECG data communication module is used to send the ECG signal and the result of detection and judgment of the ECG data quality control module to the ECG data processing module, the The ECG data processing module is used to analyze and process the result of the ECG signal to obtain the possible cause of the above abnormality.

Preferably, the ECG signal acquisition module includes sequentially connected sensor electrodes, a preamplifier circuit, a wave notch filter, a secondary amplifier circuit, an anti-aliasing filter circuit, an A/D conversion circuit, and a microcontroller, and the sensor electrodes For collecting ECG analog signals, the preamplifier circuit is used for preamplifying the ECG analog signals, the notch filter is used for filtering harmful signals in the ECG analog signals, and the secondary amplifier circuit is used for The ECG analog signal is amplified twice, the anti-aliasing filter circuit is used to perform anti-aliasing filter processing on the ECG analog signal, and the A/D conversion circuit is used to convert the ECG analog signal into an ECG digital signal, The microcontroller is used to control the first ECG data communication module to send ECG digital signals to the ECG data quality control module.

Preferably, the first ECG data communication module is a Bluetooth module, and the second ECG data communication module is any one of a WIFI module, a GSM module, a 3G module and a 4G module.

The beneficial effects of the utility model are: the real-time control system of electrocardiogram data quality proposed by the utility model is accurate, simple, efficient and fast, and when used in conjunction with its monitoring system, it can simultaneously realize the function of collecting electrocardiographic signals and the quality control function of electrocardiogram data, ensuring The monitored electrocardiographic signals are all effective signals of up to standard quality, which improves the accuracy, effectiveness and practicability of the entire monitoring system.

Description of drawings

Fig. 1 is the principle block diagram of the utility model embodiment control system;

Fig. 2 is the work flowchart of the utility model embodiment control system;

Fig. 3 is the detection flowchart of the detection item in the control system of the embodiment of the utility model;

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The technical solution of the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to understand the essence of the utility model more clearly and intuitively.

With reference to shown in Fig. 1, the utility model embodiment provides a kind of data quality real-time control system of electrocardiogram, comprises ECG signal acquisition module, the first ECG data communication module, ECG data quality control module, ECG data management module, the second ECG Data communication module and ECG data processing module;

Among them, the ECG signal acquisition module is at the forefront of the system and is used to collect ECG signals from the acquisition object. The first ECG data communication module is responsible for the data communication between the ECG signal acquisition module and the ECG data quality control module. Generally, it is composed of a bluetooth module located in the acquisition module and a bluetooth module located in the smart phone. The ECG signal is sent to the ECG data quality control module. The ECG data quality control module can generally be located in a smart phone, and is equipped with a real-time control method for ECG data quality, which is used to detect and judge whether there is no ECG signal, whether the ECG signal is seriously missing, whether all or part of the ECG signal is a horizontal line, whether the ECG signal Whether there is a large fluctuation range, whether there is serious noise interference in the ECG signal, whether the ECG signal is not a phenomenon of human ECG signal, if there is any of the above abnormal phenomena, it is judged that the quality of the ECG signal is not up to standard, if all the detection of the ECG signal If the items are all normal, it is judged that the EGC signal quality is up to standard.

The ECG data management module is generally located in the smart phone, based on the SQLite database management system, has functions such as ECG data storage, query, upload and ECG data format conversion, and is mainly used for storing and managing the ECG signal. The second ECG data communication module is in charge of the data communication between the ECG data management module and the ECG data processing module, and is used to send the ECG signal and the detection and judgment result of the ECG data quality control module to the ECG data processing module. The ECG data processing module is generally located in a remote terminal (generally a high-performance computer or workstation), and has advanced and complex ECG processing, analysis and diagnosis functions, and is mainly used to analyze and process the results of the ECG signal to obtain the above-mentioned Possible causes of the exception, etc.

In a specific embodiment of the present utility model, the ECG signal acquisition module includes sensor electrodes connected in sequence, a preamplifier circuit, a wave trap, a secondary amplifier circuit, an anti-aliasing filter circuit, an A/D conversion circuit and a micro-controller. The sensor electrodes are used to collect ECG analog signals, the preamplifier circuit is used to pre-amplify the ECG analog signals, the notch filter is used to filter harmful signals in the ECG analog signals, and the two The first-stage amplification circuit is used to amplify the ECG analog signal twice, the anti-aliasing filter circuit is used to perform anti-aliasing filter processing on the ECG analog signal, and the A/D conversion circuit is used to convert the ECG analog signal converted into ECG digital signals, and the microcontroller is used to control the first ECG data communication module to send the ECG digital signals to the ECG data quality control module.

It can be understood that the first ECG data communication module is a Bluetooth module, and the second ECG data communication module is any one of a WIFI module, a GSM module, a 3G module and a 4G module.

Referring to Figure 2, the working process is as follows:

First, the ECG signal collection module collects ECG signals from the collection object, and the collected ECG signals are sent to the ECG data quality control module through the first ECG data communication module.

Then, the ECG data quality control module detects and judges whether each detection item of the ECG signal is abnormal according to the detection item judgment standard in the ECG data quality knowledge base, and then judges whether the quality of the ECG signal is up to standard. If a certain detection item of the ECG signal is abnormal, then judge If the quality of the ECG signal is not up to standard, go to step S3. If all the detection items of the ECG signal are normal, it is judged that the quality of the EGC signal is up to standard.

Finally, the ECG data processing module controls to stop collecting ECG signals, prompts abnormal detection items, possible reasons for the abnormality of the inspection items, provides corresponding suggested measures, and sounds an alarm at the same time.

In a specific embodiment of the present invention, the above detection items may include detection item K1, detection item K2, detection item K3, detection item K4, detection item K5, and detection item K6.

Specifically, detection item K1: whether there is no ECG signal, the judgment standard for this detection item is: within a given time range, if no ECG signal is detected in a single lead, it is judged that the detection item K1 is abnormal; The possible reason for abnormal detection items is missing leads.

Detection item K2: Whether there is a serious loss of ECG signal, the judgment standard for this detection item is: within a given time range, if the proportion of ECG signal loss in a single lead exceeds the threshold value, it is judged that the detection item K2 is abnormal ; The possible reason for the abnormality of the detected item is that the lead wire is disconnected or the lead electrode falls off.

Detection item K3: Whether all or part of the ECG signal is a horizontal line, and the judgment standard for this detection item is: within a certain time range, if the ECG signal detected by a single lead is a horizontal line (some slight noise is allowed), then it is judged as the The detection item K3 is abnormal; the possible reason for the abnormality of this detection item is that the lead electrodes are in poor contact with the user's limbs.

Detection item K4: Whether the ECG signal has a large fluctuation range. The judgment standard for this detection item is: within a certain time range, if the fluctuation range of the ECG signal detected by a single lead exceeds the threshold value, it is judged as the The detection item K4 is abnormal; the possible reasons for the abnormality of this detection item are that the lead electrode has fallen off, the lead wire has been disconnected, or severe baseline drift.

Detection item K5: Whether the signal has serious noise interference, the judgment standard for this detection item is: within a certain time range, if the interference noise of the ECG signal detected by a single lead is higher than the threshold value, it is judged as the detection Item K5 is abnormal; the possible reason for the abnormality of the detected item K5 is power frequency interference.

Detection item K6: Whether the ECG signal is not a human ECG signal, the judgment standard for this detection item is: if the heart rate value derived from the ECG signal exceeds the range of the human heart rate, it is judged that the detection item K6 is abnormal. The possible reason for the abnormality of the detection item K6 is the non-human collection object.

As shown in FIG. 3 , in a preferred embodiment of the present invention, the above-mentioned detection items K1 to K6 are sequentially detected in order, that is, sequentially detect whether there is no ECG signal, whether the ECG signal is seriously missing, whether the ECG signal is all or Part of it is a horizontal line, whether the ECG signal has a large fluctuation range, whether the ECG signal has serious noise interference, whether the ECG signal is not a phenomenon of human ECG signal, if any of the above abnormal phenomena exists, it is judged that the quality of the ECG signal is not up to standard, If all detection items of the ECG signal are normal, it is judged that the quality of the EGC signal is up to standard. When it is judged that the quality of the ECG signal is not up to standard, stop collecting the ECG signal, prompt the abnormal detection item, the possible cause of the abnormality of the inspection item, provide corresponding suggested measures, and sound an alarm at the same time.

The real-time control system of electrocardiogram data quality proposed by the utility model is accurate, simple, efficient and fast. When used in conjunction with its monitoring system, it can simultaneously realize the function of collecting electrocardiogram signals and controlling the quality of electrocardiogram data, ensuring that the monitored electrocardiogram signals All are effective signals of quality compliance, improving the accuracy, effectiveness and practicability of the entire monitoring system.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the scope of its patents. Any equivalent structure or equivalent process conversion made by utilizing the contents of the utility model specification and accompanying drawings can be directly or indirectly used in other related technologies. Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (1)

1. a data quality real-time control system of electrocardiogram, is characterized in that, comprises ECG signal acquisition module, the first ECG data communication module, ECG data quality control module, ECG data management module, the second ECG data communication module and ECG data processing module; Wherein, the ECG signal acquisition module is used to collect ECG signals from the collection object, the first ECG data communication module is used to send the collected ECG signals to the ECG data quality control module, and the ECG data quality control module detects and judges Whether there is no ECG signal, whether the ECG signal is seriously missing, whether all or part of the ECG signal is a horizontal line, whether the ECG signal has a large fluctuation range, whether the ECG signal has serious noise interference, whether the ECG signal is not a human ECG signal, If any of the above abnormal phenomena exists, it is judged that the quality of the ECG signal is not up to standard, and if all the detection items of the ECG signal are normal, it is judged that the quality of the EGC signal is up to standard; The ECG data management module stores and manages the ECG signal, the second ECG data communication module is used to send the ECG signal and the result of detection and judgment of the ECG data quality control module to the ECG data processing module, the The ECG data processing module is used to analyze and process the results of the ECG signal to obtain possible causes of the above abnormalities; The ECG signal acquisition module includes sensor electrodes connected in sequence, a preamplifier circuit, a wave trap, a secondary amplifier circuit, an anti-aliasing filter circuit, an A/D conversion circuit, and a microcontroller, and the sensor electrodes are used for acquiring ECG analog signal, the pre-amplification circuit is used for pre-amplifying the ECG analog signal, the notch filter is used for filtering harmful signals in the ECG analog signal, and the secondary amplification circuit is used for ECG analog signal perform secondary amplification, the anti-aliasing filter circuit is used to perform anti-aliasing filter processing on the ECG analog signal, the A/D conversion circuit is used to convert the ECG analog signal into an ECG digital signal, and the micro The controller is used to control the first ECG data communication module to send ECG digital signals to the ECG data quality control module; The first ECG data communication module is a Bluetooth module, and the second ECG data communication module is any one of a WIFI module, a GSM module, a 3G module and a 4G module.