TWI581760B - Method for detecting abnormal heartbeat signal and electronic apparatus thereof - Google Patents

Description

Abnormal heartbeat signal detecting method and electronic device thereof

The disclosure relates to a signal detecting method, and in particular to an abnormal heartbeat signal detecting method and an electronic device thereof.

In modern society, heart disease is one of the most common major diseases due to heavy work, stressful life or unhealthy diets, and is a common cause of sudden death (Sudden Cardiac Death). When a patient's acute heart disease occurs, the consequences are often unimaginable if no one provides appropriate assistance and the patient falls into confusion or incapacity.

In order to prevent the occurrence of acute heart disease, the general public can control their own health through the health check provided by medical facilities. By reading the heartbeat signal, once a person has signs of heart disease, the risk of sudden death can be reduced through early warning and reasonable treatment. However, for patients with heart disease or high-risk groups of heart disease, health checks provided by medical facilities alone Checking is insufficient. If the patient's heartbeat signal cannot be monitored anytime and anywhere, naturally, it is impossible to provide immediate assistance in the event that the patient's heartbeat signal is abnormal or the patient has an acute heart disease. Therefore, how to provide an instant and effective abnormal heartbeat signal detecting method and electronic device thereof is still one of the goals of those skilled in the art.

The invention provides an abnormal heartbeat signal detecting method and an electronic device thereof, which can detect an abnormal heartbeat signal instantly and preferably.

The invention provides an abnormal heartbeat signal detecting method suitable for an electronic device. The abnormal heartbeat signal detection method includes the following steps. Receive the user's heartbeat signal to be tested. Corresponding to the received heartbeat signal to be tested, the physiological information of the user is obtained. Based on physiological information, heartbeat samples are selected from the heartbeat sample database. Compare the heartbeat signal with the heartbeat sample to obtain the correlation coefficient between the heartbeat signal and the heartbeat sample to be tested. The correlation coefficient and the preset threshold are compared to determine whether the heartbeat signal to be tested is an abnormal heartbeat signal.

The invention provides an electronic device, comprising a receiving unit, a physiological information capturing unit and a control unit. The receiving unit receives the heartbeat signal of the user to be tested, and the physiological information capturing unit corresponds to the heartbeat signal to be tested, and obtains the physiological information of the user. The control unit selects the heartbeat sample from the heartbeat sample database based on the physiological information. In addition, the control unit compares the heartbeat signal with the heartbeat sample to obtain a correlation coefficient between the heartbeat signal and the heartbeat sample to be tested. The control unit compares the correlation coefficient with the preset threshold to judge Whether the heartbeat signal to be tested is an abnormal heartbeat signal.

Based on the above, the abnormal heartbeat signal detecting method and the electronic device provided by the present invention further distinguish whether the heartbeat signal to be tested is an abnormal heartbeat signal by using a correlation coefficient obtained by comparing the heartbeat signal and the heartbeat sample. In detail, in order to increase the accuracy of the comparison, the heartbeat sample is selected from the heartbeat sample database according to the physiological information of the user, and is a heartbeat sample under normal physiological conditions. Thereby, each received heartbeat signal can be effectively compared and analyzed, so that the abnormal heartbeat signal can be detected immediately and accurately.

The above described features and advantages of the present invention will be more apparent from the following description.

100, 600‧‧‧ electronic devices

200‧‧‧Wearing heartbeat signal measuring device

220‧‧‧ analog digital converter

240‧‧‧Microcontroller

260‧‧‧Communication Module

B1~B9‧‧‧ operation options

I1~I6‧‧‧ device options

HSUT‧‧‧ heartbeat signal to be tested

HS‧‧‧ heartbeat sample

W‧‧‧Help page

M‧‧‧Help Newsletter

610‧‧‧ receiving unit

620‧‧‧Physical Information Capture Unit

630‧‧‧Control unit

640‧‧‧Input interface

650‧‧‧ display module

DB‧‧‧ Heartbeat Sample Database

Steps of S110, S120, S130, S140, S150, S160, S162, S170‧‧‧ abnormal heartbeat signal detection method

S122, S124‧‧‧Procedures for providing operational options

The following drawings are a part of the specification of the disclosure, and illustrate the embodiments of the disclosure, together with the description of the description.

FIG. 1 is a flowchart of a method for detecting an abnormal heartbeat signal according to an embodiment of the invention.

FIG. 2A is a schematic diagram of a wearable heartbeat signal measuring device according to an embodiment of the invention.

FIG. 2B is a schematic diagram of a connection of an electronic device according to an embodiment of the invention.

Figure 3 shows a schematic diagram of an ideal complete heartbeat signal.

4A is a flow chart showing the provision of operational options in accordance with an embodiment of the invention.

FIG. 4B is a schematic diagram of operational options according to an embodiment of the invention.

FIG. 5A is a schematic diagram of a help page according to an embodiment of the invention.

FIG. 5B is a schematic diagram of a help message according to an embodiment of the invention.

FIG. 6 is a schematic diagram of an electronic device according to an embodiment of the invention.

The exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. In addition, wherever possible, the same reference numerals in the drawings

FIG. 1 is a flowchart of a method for detecting an abnormal heartbeat signal according to an embodiment of the invention. The abnormal heartbeat signal detecting method proposed by the present invention is applicable to an electronic device, and the electronic device is, for example, a portable electronic device such as a smart phone, a tablet, or a laptop, but Limited to this. Referring to FIG. 1, the steps of the abnormal heartbeat signal detecting method are as follows. First, the user's heartbeat signal to be tested is received by the electronic device (step S110). In this embodiment, the heartbeat signal to be tested is received, for example, from a wearable heartbeat signal measuring device.

2A is a schematic diagram of a wearable heartbeat signal measuring device according to an embodiment of the invention. Referring to FIG. 2A, the wearable heartbeat signal measuring device 200 includes an Analog-to-Digital Converter 220 and a microcontroller. (Micro-controller) 240 and communication module 260. Specifically, the heartbeat signal measured by the wearable heartbeat signal measuring device 200 is converted from the analog format to the digital format by the analog digital converter 220, transmitted to the communication module 260 via the microcontroller 240, and then transmitted through the wireless device. The wireless network is received by the electronic device. In this embodiment, the communication module 260 is, for example, a Bluetooth (Bluetooth) communication module, and follows a Bluetooth communication protocol to transmit a heartbeat signal in a digital format. However, in other embodiments, the communication module 260 can follow, for example, Zigbee protocol, WIMAX protocol, LTE protocol or WIFI protocol to transmit heartbeat signals in digital format.

In this embodiment, the electronic device may be connected to the wearable heartbeat signal measuring device 200 spontaneously to receive the user's heartbeat signal to be tested, but the invention is not limited thereto. FIG. 2B is a schematic diagram of a connection of an electronic device according to an embodiment of the invention. In the embodiment, the electronic device 100 provides an operation option B1, and after the user clicks the operation option B1, a plurality of pairable device options I1 to I6 are displayed. The user can further select a correct device option (for example, device option I1) to complete the connection between the electronic device 100 and the wearable heartbeat signal measuring device 200 to start receiving the heartbeat signal to be tested.

Figure 3 shows a schematic diagram of an ideal complete heartbeat signal. Referring to Figure 3, a complete heartbeat signal represents the change in potential of cardiomyocytes during a myocardial action cycle. The ideal heartbeat signal includes P wave, QRS wave (wave group formed by Q wave, R wave, and S wave) and characteristic waves such as T wave, which correspond to atrial depolarization period, ventricular depolarization period, and ventricular repolarization. Period. In clinical medicine, by analyzing P waves, The QRS wave (the wave group formed by the Q wave, the R wave, and the S wave) and the waveform of the T wave determine whether the heartbeat signal is normal, but in this embodiment, mainly by comparing the heartbeat signal with the normal heartbeat sample. Determine whether the heartbeat signal to be tested is an abnormal heartbeat signal. In more detail, it is determined whether the heartbeat signal to be tested is an abnormal heartbeat signal by comparing the QRS wave of the heartbeat signal to be tested with the heartbeat sample. However, even if it is a healthy user, its heartbeat signal will change with the user's own activity status. Therefore, if a fixed heartbeat sample is compared with all possible heartbeat signals to be tested, it is highly probable that some of the heartbeat signals to be tested are misjudged as abnormal heartbeat signals.

Therefore, referring to FIG. 1 , after receiving the heartbeat signal to be tested by the user, the abnormal heartbeat signal detection method provided by the embodiment of the present invention further corresponds to the heartbeat signal to be tested, and obtains physiological information of the user (step S120). . Then, based on the aforementioned physiological information, the heartbeat sample is selected from the heartbeat sample database (step S130). The aforementioned physiological information includes the traveling speed of the user and the tilt angle of the human body, and the heartbeat samples stored in the heartbeat sample database are classified and stored in advance by physiological information. When the heartbeat signal to be tested is received, the physiological information of the user is obtained corresponding to the heartbeat signal to be tested, and the appropriate heartbeat sample is selected according to the physiological information, so that the abnormal heartbeat signal detection method provided by the embodiment of the present invention can have more accurate detection. ability.

In this embodiment, the electronic device is further connected to an electronic pedometer (not shown) and an inertial measurement unit (not shown) on the user via a wireless network or a wired network, and the user is separately obtained. The speed of travel and the angle of inclination of the human body. detailed In other words, the electronic pedometer includes a shock sensor and an electronic counter to detect the number of walks of the user, and the electronic device divides the number of lines of the user by the walking time to obtain the travel speed of the user. Similarly, the inertial measurement unit includes a three-axis gyroscope and a three-direction accelerometer to measure the angular velocity and acceleration of the user's human body in three-dimensional space, and the electronic device further calculates the tilt angle of the human body. It should be noted that the travel speed of the user and the tilt angle of the human body are all obtained corresponding to the heartbeat signal to be tested.

Referring to FIG. 1 , after selecting a heartbeat sample, the abnormal heartbeat signal detection method provided by the embodiment of the present invention compares the heartbeat signal and the heartbeat sample to obtain a correlation coefficient between the heartbeat signal and the heartbeat sample to be tested (step S140). In the embodiment of the present invention, the equation for calculating the correlation coefficient is as follows:

Where r is the Pearson Correlation Coefficient, which ranges from -1 to 1. x [ n ] is the heartbeat signal to be tested, y [ n ] is the sample heartbeat, N is the heartbeat signal to be tested, and the length of the QRS wave in the heartbeat sample (the number of samples of the QRS wave), For the average of the heartbeat signals to be tested, and The average of the heartbeats for the sample. When r is closer to 0, the degree of correlation between the heartbeat signal and the heartbeat sample is lower, and when r is closer to 1 or -1, the positive or negative correlation between the heartbeat signal and the heartbeat sample is measured. high. In this embodiment, the correlation coefficient r is converted to a percentage system after being absolute valued, and the range is between 0% and 100%.

After the correlation coefficient r is obtained, the abnormal heartbeat signal detection method compares the preset threshold value with the correlation coefficient r to determine whether the heartbeat signal to be tested is an abnormal heartbeat signal (step S150). The preset threshold is, for example, 60%, but is not limited thereto. If the correlation coefficient is lower than the preset threshold, it is determined that the heartbeat signal to be tested is an abnormal heartbeat signal, and the heartbeat signal to be tested is stored (step S160). In contrast, if the correlation coefficient is higher than or equal to the preset threshold, it is determined that the heartbeat signal to be tested is a normal heartbeat signal, and the abnormal heartbeat signal detection method further stores the heartbeat signal to be tested and its corresponding physiological information to the heartbeat sample data. The library (step S170), according to the expansion of the heartbeat sample database, and then the abnormal heartbeat signal detection method returns to step S110 to re-determine whether the newly input heartbeat signal to be tested is an abnormal heartbeat signal. It should be noted that, in other embodiments, step S170 does not necessarily store the heartbeat signal to be tested to the heartbeat sample database, but may directly return to step S110 to receive a new one without storing the heartbeat signal to be tested. Heartbeat signal to be tested.

In the foregoing embodiment, after the connection between the electronic device 100 and the wearable heartbeat signal measuring device 200 is successfully established, the abnormal heartbeat signal detecting method is automatically executed to determine whether the heartbeat signal to be tested is an abnormal heartbeat signal. However, in other embodiments of the present invention, the abnormal heartbeat signal detecting method may also be manually operated by a user of the electronic device 100 to complete the detection of the heartbeat signal to be measured. 4A is a flow chart showing the provision of operational options in accordance with an embodiment of the invention. FIG. 4B is a schematic diagram of operational options according to an embodiment of the invention. Referring to FIGS. 1, 4A and 4B, after obtaining the heartbeat signal to be tested (step S110) and the physiological information (step S120), the electronic device 100 displays the heartbeat signal HSUT (step) Step S122) and providing a plurality of operation options B2 to B6 (step S124).

In more detail, the abnormal heartbeat signal detecting method displays the user's heartbeat signal HSUT and the heartbeat sample HS for the user to watch, and can display the current heart rate of the user in real time. In detail, the abnormal heartbeat signal detection method further utilizes the QRS wave of each heartbeat signal to be tested, thereby calculating the distance between the R wave peaks of two consecutive heartbeat signals to be tested. The distance between the R wave peaks is the user's heartbeat cycle, and the reciprocal of the heartbeat cycle is the user's heart rate.

The abnormal heartbeat signal detection method also provides a plurality of operation options B2~B6 so that the user can manually complete the comparison between the heartbeat signal HSUT to be tested and the heartbeat sample HS. In this embodiment, the operation options B2 B B6 correspond to different functions respectively. The operation option B2 corresponds to the storage function, and the user can directly store the heartbeat signal HSUT and the corresponding physiological information to enter the heartbeat sample database by clicking the operation option B2. In other words, as long as the user thinks that the heartbeat signal to be tested belongs to the normal heartbeat signal, the operation option B2 can be directly clicked to directly store the heartbeat signal HSUT to the heartbeat sample database. Operation option B3 corresponds to the selection function of the heartbeat sample HS. When the user selects the operation option B3, the electronic device 100 selects an appropriate heartbeat sample HS according to the physiological information of the received heartbeat signal HSUT, and the electronic device 100 also displays the heartbeat sample HS for the user to view.

When the user wants to perform the comparison between the heartbeat signal HSUT to be tested and the heartbeat sample HS, the comparison program can be started by clicking the operation option B4. If the user wants to access the past abnormal heartbeat signal record, the electronic device 100 can be provided with the relevant record by clicking the operation option B5. Operation option B6 is used to provide the setting page (not shown), and the user can set various abnormal heartbeat signal detection methods through the setting page. For example, the abnormal heartbeat signal detection method is set to be performed automatically or manually.

Referring back to FIG. 1, in the embodiment, the abnormal heartbeat signal detecting method stores the heartbeat signal to be tested after determining that the heartbeat signal to be tested is an abnormal heartbeat signal (step S160), and issues a distress signal (step S162). When the heartbeat signal to be tested is determined to be an abnormal heartbeat signal, the abnormal heartbeat signal detecting method first stores the aforementioned heartbeat signal to be tested, so that it can be consulted by a doctor when seeking medical treatment in the future. Then, the abnormal heartbeat signal detecting method automatically sends a distress signal to the user's relatives or friends or the medical facility through the electronic device 100. The distress signal includes, for example, a distress call, a help message, and a call for help. The sound of help is used to draw attention to the environment around the user, while the help message and the call for help are used to inform specific people so that they can reach out to the user as quickly as possible. The communication message for the help message and the call for help can be set in advance on the setting page, for example, by clicking the operation option B6 (Fig. 4B).

In the foregoing embodiment, the heartbeat signal to be tested and the distress signal are automatically recorded and transmitted after the heartbeat signal to be tested is determined to be an abnormal heartbeat signal, but the present invention is not limited thereto. After the heartbeat signal to be tested is determined to be an abnormal heartbeat signal, the user can manually store the heartbeat signal to be tested by shaking the electronic device. Similarly, the distress signal can also be manually sent by the user to the setting object. FIG. 5A is a schematic diagram of a help page according to an embodiment of the invention. Referring to FIG. 5A, in the embodiment, after the heartbeat signal to be tested is determined to be an abnormal heartbeat signal, the abnormal heartbeat signal detecting method further displays the help page W, and the help page W is the same. This includes multiple operating options B7~B9 that correspond to different functions. For example, the operation option B7 corresponds to the function of the call for help, and after the user clicks, the call number is broadcasted to the set object to be contacted. The operation option B8 corresponds to the function of sending a help message, and after the user clicks, sends a help message to the set object. The format and content of the help message are pre-set and stored in the electronic device 100, so that the user does not need to input additional information. FIG. 5B is a schematic diagram of a help message according to an embodiment of the invention. Referring to FIG. 5B, the help message M includes, for example, the precise location (latitude and longitude) of the user and the address, but is not limited thereto. Operation option B9 corresponds to the cancel function, in order to avoid the abnormal heartbeat signal detection method to make a wrong judgment, still send the distress signal. It is worth noting that the operation options included in the help page W are not limited thereto, and may be changed depending on the actual application.

In another embodiment of the present invention, an electronic device capable of actually applying the abnormal heartbeat signal detecting method is provided. FIG. 6 is a schematic diagram of an electronic device according to an embodiment of the invention. The electronic device 600 includes a receiving unit 610, a physiological information capturing unit 620, and a control unit 630. The receiving unit 610 receives the heartbeat signal to be tested by the user, and the physiological information capturing unit 620 is coupled to the receiving unit 610 to obtain the physiological information of the user corresponding to the heartbeat signal to be tested. Physiological information includes the speed of travel of the user and the angle of inclination of the human body. The control unit 630 is coupled to the receiving unit 610 and the physiological information capturing unit 620, and selects a heartbeat sample by the heartbeat sample database DB according to the physiological information. The control unit 630 compares the heartbeat signal and the heartbeat sample to obtain a correlation coefficient between the heartbeat signal and the heartbeat sample to be tested, and compares the correlation coefficient with a preset threshold to determine whether the heartbeat signal to be tested is an abnormal heartbeat signal. If the relationship When the number is lower than the preset threshold, the control unit 630 determines that the heartbeat signal to be tested is an abnormal heartbeat signal. Further, the heartbeat sample database DB is realized by, for example, a device such as a hard disk or a non-volatile memory.

In the embodiment, the electronic device 600 further includes an input interface 640 and a display module 650 , all of which are coupled to the control unit 630 . The display module 650 is configured to display a heartbeat signal to be tested, a heartbeat sample, and a plurality of operation options, and the user of the electronic device 600 selects an operation option through the input interface 640. In an embodiment of the invention, the input interface 640 and the display module 650 may be integrated touch display screens, but are not limited thereto.

It is to be noted that the electronic device 600 may further include a Global Positioning System (GPS) and a transmitting unit, so as to implement the sending of the foregoing help signal, in particular, the sending of the help message.

For detailed operation and setting of the electronic device 600, please refer to the detailed description of the abnormal heartbeat signal detecting method, and details are not described herein again.

In summary, the abnormal heartbeat signal detecting method and the electronic device provided by the present invention further distinguish whether the heartbeat signal to be tested is an abnormal heartbeat signal by using a correlation coefficient obtained by comparing the heartbeat signal and the heartbeat sample. In detail, in order to increase the accuracy of the comparison, the heartbeat sample is selected from the heartbeat sample database according to the physiological information of the user, and is a heartbeat sample under normal physiological conditions. Thereby, each received heartbeat signal can be effectively compared and analyzed, so that the abnormal heartbeat signal can be detected immediately and accurately.

Although the present disclosure has been presented in various embodiments, for example, it is not intended to be limiting It is to be understood that the scope of the present disclosure is defined by the scope of the appended claims. Prevail.

Steps of S110, S120, S130, S140, S150, S160, S162, S170‧‧‧ abnormal heartbeat signal detection method

Claims (8)

An abnormal heartbeat signal detecting method is applicable to an electronic device, comprising: receiving a heartbeat signal to be tested of a user; obtaining a physiological information of the user corresponding to the heartbeat signal to be tested, wherein the physiological information includes the user According to the physiological information, a heartbeat sample is selected from a heartbeat sample database; and the heartbeat signal and the heartbeat sample are compared to obtain the heartbeat signal and the heartbeat sample. Correlation coefficient; and comparing the correlation coefficient with a preset threshold to determine whether the heartbeat signal to be tested is an abnormal heartbeat signal. The method for detecting an abnormal heartbeat signal according to claim 1, further comprising: displaying the heartbeat signal to be tested; and providing a plurality of operation options, wherein one of the operation options corresponds to a storage function, when the user When the operation option corresponding to the storage function is selected, the heartbeat signal to be tested and the corresponding physiological information are stored to the heartbeat sample database. The method for detecting an abnormal heartbeat signal according to claim 1, further comprising: if the correlation coefficient is higher than the preset threshold, determining that the heartbeat signal to be tested is a normal heartbeat signal, and storing the heartbeat signal to be tested. And corresponding physiological information to the heartbeat sample database. For example, the abnormal heartbeat signal detection method described in item 1 of the patent application scope is further The method includes: if the correlation coefficient is lower than the preset threshold, determining that the heartbeat signal to be tested is the abnormal heartbeat signal, and storing the heartbeat signal to be tested; and issuing a help message, wherein the help message includes a help sound, Ask for help and a call for help. An electronic device includes: a receiving unit that receives a heartbeat signal to be tested by a user; a physiological information capturing unit coupled to the receiving unit, corresponding to the heartbeat signal to be tested, and obtaining a physiological information of the user, The physiological information includes a traveling speed of the user and a tilt angle of the human body; and a control unit coupled to the receiving unit and the physiological information capturing unit, and selecting a heartbeat from a heartbeat sample database according to the physiological information a sample, the control unit compares the heartbeat signal to be tested with the heartbeat sample to obtain a correlation coefficient between the heartbeat signal to be tested and the heartbeat sample, and the control unit compares the correlation coefficient with a preset threshold to determine the Whether the heartbeat signal to be tested is an abnormal heartbeat signal. The electronic device of claim 5, wherein the electronic device further comprises: an input interface coupled to the control unit; and a display module coupled to the control unit to display the heartbeat signal to be tested and provide a plurality of operation options, wherein one of the operation options corresponds to a storage function, and when the user selects the operation option corresponding to the storage function through the input interface, the control unit stores the heartbeat signal to be tested and the corresponding Physiological information to the heartbeat This database. The electronic device of claim 5, wherein if the correlation coefficient is higher than the preset threshold, the control unit determines that the heartbeat signal to be tested is a normal heartbeat signal, and stores the heartbeat signal to be tested and corresponding The physiological information is sent to the heartbeat sample database. The electronic device of claim 5, wherein if the correlation coefficient is lower than the preset threshold, the control unit determines that the heartbeat signal to be tested is the abnormal heartbeat signal and stores the heartbeat signal to be tested, and The control unit sends a help message including a help-seeking sound, a help-seeking message, and a help-seeking call.