Signal acquisition method, electrocardio monitoring device and electrocardio monitoring system

Abstract

The application relates to a signal collection method, an electrocardio monitoring device and an electrocardio monitoring system. The method is applied to the electrocardio monitoring device which is detachably installed on the base of a signal collector, receives and stores physiological signals collected by the signal collector. The method comprises the following steps: in-situ detection of the base to detect whether the signal collector is in conductive connection with the electrocardio monitoring device; in the case that the signal collector is in conductive connection with the electrocardio monitoring device, the type of the signal collector is identified; a signal collection instruction matched with the type of the signal collector is received; and at least one physiological signal is collected according to the identified type of the signal collector and the signal collection instruction in response to the signal collection instruction. The scheme can improve the flexibility and adaptability of the electrocardio monitoring device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of signal acquisition, in particular to a signal acquisition method, an electrocardiogram monitoring device and an electrocardiogram monitoring system. BACKGROUND

[0002] In a monitoring scene, different types of electrocardiogram acquisition devices need to be used to collect electrocardiogram signals according to configuration instructions, which leads to a complex circuit structure of an electrocardiogram monitoring device used for collecting and recording electrocardiogram signals, a large number of circuit components, and problems such as low signal acquisition efficiency, which limits the application range of the electrocardiogram monitoring device. SUMMARY

[0003] Therefore, it is necessary to provide a signal acquisition method, an electrocardiogram monitoring device and an electrocardiogram monitoring system in view of the technical problem that the application range of the electrocardiogram monitoring device is limited.

[0004] In a first aspect, the present application provides a signal acquisition method, which is applied to an electrocardiogram monitoring device, the electrocardiogram monitoring device is used to be detachably installed on a base of a signal acquisition device, receive and store physiological signals collected by the signal acquisition device, and the method comprises:

[0005] detecting whether the signal acquisition device is in conductive connection with the electrocardiogram monitoring device by in-situ detection of the base;

[0006] identifying a signal acquisition device type in the case that the signal acquisition device is in conductive connection with the electrocardiogram monitoring device;

[0007] receiving a signal acquisition instruction matched with the signal acquisition device type;

[0008] collecting at least one physiological signal according to the identified signal acquisition device type and the signal acquisition instruction in response to the signal acquisition instruction.

[0009] In one of the embodiments, the electrocardiogram monitoring device is configured with a signal switching circuit and a signal acquisition circuit, the signal switching circuit comprises a first analog switch, a second analog switch, a third analog switch and a fourth analog switch, and the signal acquisition circuit comprises a signal acquisition channel;

[0010] The method further comprises:

[0011] controlling the first analog switch, the second analog switch, the third analog switch and the fourth analog switch to select a signal acquisition channel according to the signal acquisition instruction;

[0012] controlling the selected signal acquisition channel to input the collected at least one physiological signal to the signal acquisition circuit.

[0013] In one of the embodiments, the signal collector type is identified as a three-electrode lead; the three-electrode lead includes a left upper limb lead, a right upper limb lead and a left leg lead, two of the left upper limb lead, the right upper limb lead and the left leg lead are selected to collect limb lead electrocardio signals, and the other one is used as an output channel;

[0014] The method further includes at least one of the following steps:

[0015] According to the signal collection instruction, a respiration excitation signal is generated, the second analog switch is controlled to output the respiration excitation signal to the human body, and the impedance change of the human body is monitored to generate a respiration feedback signal;

[0016] The first analog switch and the second analog switch are controlled to select a respiration signal collection channel in the signal collection channels, and the respiration feedback signal is input to the signal collection circuit through the selected respiration signal collection channel;

[0017] The third analog switch is controlled to select an electrocardio signal collection channel in the signal collection channels corresponding to two of the limb leads, and the limb lead electrocardio signals are input to the signal collection circuit through the selected electrocardio signal collection channel;

[0018] The fourth analog switch is controlled to select the other one of the limb leads as an output channel, and a right leg drive signal generated by control is applied to the human body through the output channel to reduce common mode interference generated by the human body.

[0019] In one of the embodiments, the signal collector type is identified as a four-electrode lead; the four-electrode lead includes a left upper limb lead, a right upper limb lead, a left leg lead and a right leg lead; the left upper limb lead, the right upper limb lead and the left leg lead are used to collect limb lead electrocardio signals; and the method further includes at least one of the following steps:

[0020] According to the signal collection instruction, a respiration excitation signal is generated, the second analog switch is controlled to output the respiration excitation signal to the human body, and the impedance change of the human body is monitored to generate a respiration feedback signal;

[0021] The first analog switch and the second analog switch are controlled to select a respiration signal collection channel in the signal collection channels, and the respiration feedback signal is input to the signal collection circuit through the selected respiration signal collection channel to obtain a respiration signal;

[0022] According to the signal acquisition instruction, the third analog switch is controlled to select an electrocardio signal acquisition channel in a signal acquisition channel corresponding to any two of the left upper limb lead, the right upper limb lead and the left leg lead, and the electrocardio signal of the limb lead is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel;

[0023] The fourth analog switch is controlled to select an electrocardio signal acquisition channel in a signal acquisition channel corresponding to the other one of the left upper limb lead, the right upper limb lead and the left leg lead, and the electrocardio signal of the limb lead is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel;

[0024] The right leg lead is controlled as an output channel of the signal acquisition circuit, and a right leg drive signal is applied to the human body through the output channel to reduce common-mode interference generated by the human body.

[0025] In one embodiment, the signal acquisition device type is identified as a five-electrode lead, which includes a left upper limb lead, a right upper limb lead, a left leg lead, a right leg lead and a chest lead; the left upper limb lead, the right upper limb lead and the left leg lead are used to acquire limb lead electrocardio signals; the chest lead is used to acquire chest lead electrocardio signals; and the method further includes at least one of the following steps:

[0026] According to the signal acquisition instruction, a breathing excitation signal is generated, the second analog switch is controlled to output the breathing excitation signal to the human body, and a breathing feedback signal is generated by monitoring the impedance change of the human body;

[0027] The first analog switch and the second analog switch are controlled to select a breathing signal acquisition channel in the signal acquisition channel, and the breathing feedback signal is input to the signal acquisition circuit through the selected breathing signal acquisition channel to obtain a breathing signal;

[0028] According to the signal acquisition instruction, the third analog switch is controlled to select an electrocardio signal acquisition channel in a signal acquisition channel corresponding to any two of the left upper limb lead, the right upper limb lead and the left leg lead, and the electrocardio signal of the limb lead is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel;

[0029] The fourth analog switch is controlled to select an electrocardio signal acquisition channel in a signal acquisition channel corresponding to the other one of the left upper limb lead, the right upper limb lead and the left leg lead, and the electrocardio signal of the limb lead is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel;

[0030] Controlling the right leg limb lead as an output channel of the signal acquisition circuit, and applying a right leg drive signal to the human body through the output channel to reduce common mode interference generated by the human body;

[0031] Controlling the chest lead as an electrocardiosignal acquisition channel of the signal acquisition circuit to input the chest lead electrocardiosignal to the signal acquisition circuit.

[0032] In one of the embodiments, the signal acquisition device type is identified as a ten-lead, which includes a left upper limb lead, a right upper limb lead, a left leg lead, a right leg lead, and six chest leads; the left upper limb lead, the right upper limb lead, and the left leg lead are used to acquire limb lead electrocardiosignals, and the chest leads are used to acquire chest lead electrocardiosignals; the method further includes at least one of the following steps:

[0033] According to the signal acquisition instruction, controlling the switching of the first analog switch to select an electrocardiosignal acquisition channel in a signal acquisition channel corresponding to one of the six chest leads, and inputting the chest lead electrocardiosignal to the signal acquisition circuit through the selected electrocardiosignal acquisition channel;

[0034] According to the signal acquisition instruction, controlling the switching of the third analog switch to select an electrocardiosignal acquisition channel in a signal acquisition channel corresponding to any two of the left upper limb lead, the right upper limb lead, and the left leg lead, and inputting the limb lead electrocardiosignal to the signal acquisition circuit through the selected electrocardiosignal acquisition channel;

[0035] According to the signal acquisition instruction, controlling the switching of the fourth analog switch to select an electrocardiosignal acquisition channel in a signal acquisition channel corresponding to the other of the left upper limb lead, the right upper limb lead, and the left leg lead, and inputting the limb lead electrocardiosignal to the signal acquisition circuit through the selected electrocardiosignal acquisition channel;

[0036] Controlling the right leg limb lead as an output channel of the signal acquisition circuit, and applying a right leg drive signal to the human body through the output channel to reduce common mode interference generated by the human body;

[0037] Receiving chest lead electrocardiosignals acquired by the remaining five of the six chest leads.

[0038] In one of the embodiments, the signal acquisition device is provided with an NFC tag, and the electrocardiomonitoring device is provided with an NFC data acquisition device; the identification of the signal acquisition device type connected to the base includes:

[0039] Reading information stored in the NFC tag through the NFC data acquisition device;

[0040] Identify the type of signal collector connected to the base through the information read from the NFC tag.

[0041] In a second aspect, the application further provides an electrocardio monitoring device, which is detachably installed on a base of a signal collector. The electrocardio monitoring device comprises a first housing and a second housing which are detachably connected and enclose a cavity. The electrocardio monitoring device further comprises a circuit board provided with a signal collection circuit and a control circuit. The control circuit comprises a microprocessor, and the microprocessor comprises:

[0042] A monitoring unit is configured to detect whether the base is in place and connected in place.

[0043] A type identification unit is configured to identify the type of the signal collector when the base is electrically connected to the electrocardio monitoring device.

[0044] An instruction receiving unit is configured to receive a signal collection instruction adapted to the type of the signal collector.

[0045] A processing unit is configured to implement the signal collection method of any of the above embodiments according to the identified type of the signal collector and the signal collection instruction in response to the signal collection instruction.

[0046] In one embodiment, the second housing is further provided with an NFC data collector. The NFC data collector is configured to read the information stored in the NFC tag provided on the base to identify the type of the signal collector connected to the base.

[0047] In a third aspect, the application further provides an electrocardio monitoring system comprising the above electrocardio monitoring device and signal collector.

[0048] The signal collection method provided by the application is applied to an electrocardio monitoring device. The base of the signal collector is detected in place. When the signal collector is electrically connected to the electrocardio monitoring device, the type of the signal collector is identified. A signal collection instruction adapted to the type of the signal collector is received. The electrocardio signal is collected according to the signal collection instruction and the type of the signal collector. The electrocardio signal is collected by matching different types of signal collectors. Therefore, the flexibility and adaptability of the electrocardio monitoring device are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 It is a flowchart of the signal collection method in one embodiment;

[0050] Figure 2 It is a flowchart of the signal collection method in another embodiment;

[0051] Figure 3 Structure diagram of a central ECG monitoring device according to an embodiment;

[0052] Figure 4 Structure diagram of a central ECG monitoring device according to another embodiment;

[0053] Figure 5 Structure diagram of a central ECG monitoring device according to yet another embodiment;

[0054] Figure 6 Structure diagram of a central ECG monitoring device according to still another embodiment;

[0055] Figure 7 Flow diagram of a method for anti-counterfeiting according to an embodiment;

[0056] Figure 8 Structure diagram of a central ECG monitoring device according to an embodiment;

[0057] Figure 9 Structure diagram of a flexible touch area and a charging interface of a central ECG monitoring device according to an embodiment;

[0058] Figure 10 Structure diagram of a charging method of a central ECG monitoring device according to an embodiment;

[0059] Figure 11 Structure diagram of a computer device according to an embodiment. DETAILED DESCRIPTION

[0060] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0061] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0062] Embodiment One

[0063] Reference Figure 1 A flow diagram of a signal acquisition method according to an embodiment is shown. The signal acquisition method proposed by the present application is applied to an ECG monitoring device 100, which can be detachably installed on a base 210 of a signal acquisition device 200, and receives and stores physiological signals acquired by the signal acquisition device 200. In this embodiment, the method comprises the following steps:

[0064] In step S110, in-situ detection is performed on the base 210 to detect whether the signal collector 200 is electrically connected with the ECG monitoring device 100.

[0065] In step S120, in the case where the signal collector 200 is electrically connected with the ECG monitoring device 100, the type of the signal collector 200 is identified.

[0066] In step S130, a signal collection instruction adapted to the type of the signal collector 200 is received.

[0067] In step S140, in response to the signal collection instruction, at least one physiological signal is collected according to the identified type of the signal collector 200 and the signal collection instruction.

[0068] The signal collector 200 can be an ECG lead wire or a patch ECG electrode.

[0069] The type of the signal collector 200 is divided into three-electrode lead, four-electrode lead, five-electrode lead and ten-electrode lead according to the number of lead cables or ECG electrodes connected with the base 210.

[0070] The physiological signal includes an ECG signal and can also include a respiratory signal.

[0071] It can be understood that the ECG monitoring device 100 receives and stores the physiological signal collected by the signal collector 200, detects whether the signal collector 200 is electrically connected with the ECG monitoring device 100 through the in-situ detection function of the ECG monitoring device 100, identifies the type of the signal collector 200 in the case where it is confirmed that the signal collector 200 is electrically connected with the ECG monitoring device 100, uploads the type of the signal collector 200 to the central station, displays the type of the signal collector 200 through the central station, generates a signal collection instruction according to the type of the signal collector 200 and the actual collection demand, and issues the signal collection instruction to the ECG monitoring device 100, and the ECG monitoring device 100 receives and stores the physiological signal in response to the signal collection instruction.

[0072] In this embodiment, whether the detection signal collector 200 is electrically connected with the electrocardio monitoring device 100 is detected by detecting the in-place of the base 210; in the case that the detection signal collector 200 is electrically connected with the electrocardio monitoring device 100, i.e. after confirming that the signal collector 200 is connected with the electrocardio monitoring device 100, the type of the signal collector 200 is identified, different types of signal collectors 200 support collecting different physiological signals; a signal collection instruction matched with the type of the signal collector 200 is received; and at least one physiological signal is collected according to the identified type of the signal collector 200 and the signal collection instruction in response to the signal collection instruction. In this method, the type of the signal collector 200 is identified by the electrocardio monitoring device 100, and the physiological signals collected by different types of signal collectors 200 are received, thereby greatly improving the flexibility and adaptability of the electrocardio monitoring device 100.

[0073] In some embodiments, the base 210 is provided with an NFC tag, and the electrocardio monitoring device 100 is provided with an NFC data collector; the step S120 of identifying the type of the signal collector 200 comprises: reading the information stored in the NFC tag by the NFC data collector; and identifying the type of the signal collector 200 by the information read from the NFC tag.

[0074] Wherein, NFC (Near Field Communication) is a non-contact identification and interconnection technology, the NFC tag provided in the signal collector 200 inputs the information of the type of the signal collector 200, and the information in the NFC tag is read by the NFC data collector, thereby identifying the type of the signal collector 200.

[0075] Specifically, the NFC data collector (such as NFC antenna) is provided in the electrocardio monitoring device 100, the NFC tag is identified by the NFC data collector, the information stored in the NFC tag is obtained, and the type of the signal collector 200 is identified.

[0076] Reference Figure 2 The flowchart of the signal collection method is shown in another embodiment. As shown in Figure 2 Before receiving the physiological signal, the in-place of the base 210 is detected to confirm whether the signal collector 200 is electrically connected with the electrocardio monitoring device 100, if yes, the NFC tag configured by the signal collector 200 is identified by the NFC data collector to identify the type information stored in the NFC tag, the type information of the signal collector 200 is uploaded to the central station, the signal collection instruction matched with the signal collector 200 is received by the central station, and the signal collection method is executed according to the signal collection instruction.

[0077] In this embodiment, an NFC tag is configured on the signal collector 200, which stores the type information of the signal collector 200. The ECG monitoring device 100 is equipped with an NFC data collector. Through NFC technology, the NFC data collector automatically identifies different types of signal collectors 200 and matches different types of signal collectors 200 to collect different physiological signals, thereby improving the flexibility and adaptability of the ECG monitoring device 100. Moreover, NFC technology optimizes the hardware design of the ECG monitoring device 100, reduces the size of the device, and meets the requirements of receiving and storing physiological signals under the constraints of size and area.

[0078] To facilitate understanding of the electrocardiogram monitoring device 100 of this application, the following description is in conjunction with the appendix. Figure 3 To be continued Figure 6 The structural diagram of the provided electrocardiogram monitoring device 100 is illustrated below. Figures 3-6 As shown, the ECG monitoring device 100 includes a first housing 11 and a second housing 12 connected separately. The first housing 11 and the second housing 12 enclose a cavity (not shown), and a circuit board 20 is disposed within the cavity. A conductive connector 30 is fixedly mounted on the second housing 12. A base 210 has metal contacts 220 corresponding to the conductive connector 30. One end of the conductive connector 30 extends into the cavity and is piezoelectrically connected to the conductive point 21 of the circuit board 20, while the other end of the conductive connector 30 extends out of the outer surface of the second housing 12. When the ECG monitoring device 100 is mounted on the base 210, the conductive connector 30 abuts against the metal contacts 220 and conducts electrical communication. The conductive connector 30 is fixedly mounted on the second housing 12 and piezoelectrically connected to the conductive point 21 of the circuit board 20. Specifically, the first housing 11 and the second housing 12 are fastened together, and the conductive connector 30 abuts against the circuit board 20 and conducts electrical communication, ensuring a stable electrical connection between the conductive connector 30 and the circuit board 20.

[0079] Since the electrocardio monitoring device 100 needs to transmit the collected physiological signals to the central station or the electrocardio analysis system for disease analysis, it needs to meet the requirement of disassembly for use, therefore, in order to fully consider the influence of the electroconductive connecting piece 30 on the electrocardio monitoring device 100 which is frequently disassembled and installed, the second shell 12 is integrated with the electroconductive connecting piece 30, if the electroconductive connecting piece 30 is damaged during use, the user can directly replace the second shell 12, and the installation is convenient and the cost is controllable. In the replacement process, the circuit board 20 does not need to be disassembled, and will not cause destructive damage to the circuit board 20, avoiding the situation that the electrocardio monitoring device 100 is scrapped due to replacement of the electroconductive connecting piece 30. 14 electroconductive connecting pieces 30 are shown in the figure, of which 10 electroconductive connecting pieces include 10 electrocardio lead wires or 10 patch electrocardio electrodes, and the 10 electrocardio lead wires or 10 patch electrocardio electrodes include 4 limb leads (LA+RA+LL+RL) and 6 chest leads (V1-V6). Similarly, in order to meet the anti-defibrillation function, the 10 electrocardio lead wires or 10 patch electrocardio electrodes are provided with defibrillation resistors for supporting the anti-defibrillation function.

[0080] It can be understood that different types of signal collectors 200 support the collection of different physiological signals. As shown in Table 1 below, different types of signal collectors 200 support the functions, wherein the 3-electrode electrocardio lead wire is a single lead, which is I lead, II lead and III lead respectively, and the single III lead does not support the collection of respiratory signals. The 4-electrode patch electrocardio sensor and the 5-electrode electrocardio lead wire both support the collection of respiratory signals, pacing signals and electrocardio signals. The 10-electrode electrocardio lead wire does not support the collection of respiratory signals, but supports the collection of pacing signals and electrocardio signals.

[0081] Table 1: Signal collector 200 type example table

[0082]

[0083] In order to realize the signal collection functions supported by different types of signal collectors 200 in Table 1, the application proposes a method of using a signal switching circuit. In some embodiments, the electrocardio monitoring device 100 is configured with a signal switching circuit, which includes a first analog switch, a second analog switch, a third analog switch and a fourth analog switch; the method further includes: controlling the conduction of the first analog switch, the second analog switch, the third analog switch and the fourth analog switch according to the signal collection instruction to select a signal collection channel; controlling the selected signal collection channel to input the collected at least one physiological signal to the signal collection circuit.

[0084] Specifically, the first analog switch, the second analog switch, the third analog switch, and the fourth analog switch are configurable analog switches, and the electrocardio monitoring device 100 is provided with a control circuit, and the control circuit is used to control the switching of the first analog switch, the second analog switch, the third analog switch, and the fourth analog switch according to a signal acquisition instruction, so as to select a corresponding signal acquisition channel, thereby dynamically adjusting the acquisition of the physiological signal.

[0085] The switching principle of the analog switch is as follows:

[0086] The first analog switch is a double-pole double-throw switch, which is used for the selection of the V6 signal of the ten-electrode lead and the respiratory feedback signal of other leads.

[0087] The second analog switch is a double-pole double-throw switch, which is used for the selection of the I lead respiratory signal and the II lead respiratory signal.

[0088] The third analog switch is a double-pole double-throw switch, which is used for the selection of the I lead electrocardio signal, the II lead electrocardio signal, and the III lead electrocardio signal (in the case of three electrodes).

[0089] The fourth analog switch is a single-pole four-throw switch, which is used as the output of the right leg driving signal in the case of three electrodes or the input of the II lead signal in other types of cases.

[0090] Through the above four analog switches, the combination of the acquisition of the electrocardio signal and the respiratory signal can be realized.

[0091] The respiratory signal can include chest breathing (I lead, LA-RA) and abdominal breathing (II lead, LL-RA).

[0092] In the method, the switching mechanism of the multiple analog switches is set, and the electrocardio monitoring device 100 switches the state of each analog switch according to the actual demand, thereby realizing the use scenario of dynamically acquiring the physiological signal.

[0093] The switching principle of each analog switch in the case of different signal collectors 200 is described below.

[0094] In some embodiments, when the type of the signal collector 200 is identified as the three-electrode lead through the NFC tag information, the three-electrode lead includes the left upper limb lead, the right upper limb lead, and the left leg lead; the left upper limb lead, the right upper limb lead, and the left leg lead select two limb leads for acquiring the limb lead electrocardio signal, and the other limb lead is used as an output channel; and the signal acquisition method further includes at least one of the following steps:

[0095] According to the signal acquisition instruction, a respiratory excitation signal is generated, the second analog switch is controlled to output the respiratory excitation signal to the human body, and the impedance change of the human body is monitored to generate a respiratory feedback signal;

[0096] The control switches the first analog switch and the second analog switch to select a respiration signal acquisition channel in the signal acquisition channel, and inputs the respiration feedback signal to the signal acquisition circuit through the selected respiration signal acquisition channel.

[0097] The control switches the third analog switch to select an electrocardio signal acquisition channel in the signal acquisition channel corresponding to two limb leads, and inputs the limb lead electrocardio signal to the signal acquisition circuit through the selected electrocardio signal acquisition channel.

[0098] The control switches the fourth analog switch to select another limb lead as an output channel, and applies the control generated right leg drive signal to the human body through the output channel to reduce the common mode interference generated by the human body.

[0099] Specifically, the three-electrode lead includes a left upper limb lead, a right upper limb lead and a left leg lead. Therefore, the right leg drive signal RLD needs to control the fourth analog switch to select another limb lead as an output channel, specifically:

[0100] When the RLD is output through the another limb lead left leg lead, the I lead respiration + I lead pacing + I lead electrocardio is supported.

[0101] When the RLD is output through the another limb lead left upper limb lead, the II lead respiration + II lead pacing + II lead electrocardio is supported.

[0102] When the RLD is output through the another limb lead right upper limb lead, the III lead pacing + III lead electrocardio is supported.

[0103] Taking the II lead respiration / electrocardio as an example (the I lead signal is similar), the following is explained:

[0104] The first analog switch: switches to select a respiration signal acquisition channel, and inputs the respiration feedback signal of the human body to the signal acquisition circuit through the respiration signal acquisition channel.

[0105] The second analog switch: switches to select a respiration signal acquisition channel, first outputs a respiration excitation signal to the human body, generates a respiration feedback signal according to the impedance change of the human body, selects the II lead respiration feedback signal input, and inputs to the signal acquisition circuit through the first analog switch; simultaneously receives the respiration modulation signal output by the signal acquisition circuit.

[0106] The third analog switch: switches to select an electrocardio signal acquisition channel in the signal acquisition channel corresponding to two limb leads, and inputs the limb lead electrocardio signal to the signal acquisition circuit through the selected electrocardio signal acquisition channel, specifically, selects the II lead electrocardio signal after filtering to input to the signal acquisition circuit to complete sampling.

[0107] The fourth analog switch: switch to select another limb lead as the output channel of the signal acquisition circuit, for example, connect the left upper limb lead, and the signal acquisition circuit passes through the right upper limb lead and the left leg lead to obtain the right leg drive RLD signal, and the right leg drive RLD signal is output to the human body through the left upper limb lead channel as the common mode signal of the human body, thereby reducing the common mode interference and improving the common mode rejection ratio.

[0108] Among them, since the III lead acquisition module closes the respiratory modulation signal channel, the III lead does not support the respiratory function.

[0109] In some embodiments, when the signal acquisition device 200 is identified as a four-electrode lead, the four-electrode lead includes a left upper limb lead, a right upper limb lead, a left leg lead, and a right leg lead; the left upper limb lead, the right upper limb lead, and the left leg lead are used to acquire limb lead electrocardio signals, and the method further includes at least one of the following steps:

[0110] According to the signal acquisition instruction, a respiratory excitation signal is generated, and the second analog switch is controlled to output the respiratory excitation signal to the human body, and the impedance change of the human body is monitored to generate a respiratory feedback signal;

[0111] The first analog switch and the second analog switch are controlled to select a respiratory signal acquisition channel in the signal acquisition channel, and the respiratory feedback signal of the human body is input to the signal acquisition circuit through the selected respiratory signal acquisition channel;

[0112] According to the signal acquisition instruction, the third analog switch is controlled to select an electrocardio signal acquisition channel in the signal acquisition channel corresponding to any two of the left upper limb lead, the right upper limb lead, and the left leg lead, and the limb lead electrocardio signal is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel;

[0113] The fourth analog switch is controlled to select an electrocardio signal acquisition channel in the signal acquisition channel corresponding to the other of the left upper limb lead, the right upper limb lead, and the left leg lead, and the limb lead electrocardio signal is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel;

[0114] The right leg lead is controlled as the output channel of the signal acquisition circuit, and the right leg drive signal is applied to the human body through the output channel to reduce the common mode interference generated by the human body.

[0115] It can be understood that when the signal acquisition device 200 is of a four-electrode lead, the right leg drive signal is no longer multiplexed to be output through the left upper limb lead, the right upper limb lead, and the left leg lead, but an independent right leg lead is used. Taking the II lead respiratory / electrocardio as an example (similar to other signals), the switching principle of each analog switch in the four-electrode lead is as follows:

[0116] The first analog switch: the position is downward, the respiratory signal acquisition channel is selected, and the respiratory feedback signal of the human body is input to the signal acquisition circuit through the respiratory signal acquisition channel.

[0117] The second analog switch: the position is downward, the respiratory signal acquisition channel is selected, the respiratory excitation signal is first output to the human body, the respiratory feedback signal is generated according to the impedance change of the human body, the II lead respiratory feedback signal is selected and input, and is input to the signal acquisition circuit through the first analog switch; at the same time, the respiratory modulation signal output by the signal acquisition circuit is received and output to the human body through the defibrillation protection circuit.

[0118] The third analog switch: the position is downward, the electrocardio signal acquisition channel in the signal acquisition channel corresponding to any two of the left upper limb lead, the right upper limb lead and the left leg lead is selected, and the electrocardio signal of the limb lead is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel. Specifically, the II lead electrocardio signal after filtering processing is selected and input to the signal acquisition circuit to complete sampling.

[0119] The fourth analog switch: the electrocardio signal acquisition channel in the signal acquisition channel corresponding to the other of the left upper limb lead, the right upper limb lead and the left leg lead is selected, and the electrocardio signal of the limb lead is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel.

[0120] In some embodiments, when the signal acquisition device 200 is of the five-electrode lead type, the five-electrode lead includes a left upper limb lead, a right upper limb lead, a left leg lead, a right leg lead and a chest lead; the left upper limb lead, the right upper limb lead and the left leg lead are used to acquire the electrocardio signal of the limb lead, and the chest lead is used to acquire the electrocardio signal of the chest lead, and the method further includes at least one of the following steps:

[0121] According to the signal acquisition instruction, the respiratory excitation signal is generated, the second analog switch is controlled to output the respiratory excitation signal to the human body, the impedance change of the human body is monitored to generate the respiratory feedback signal. The first analog switch and the second analog switch are switched to select the respiratory signal acquisition channel in the signal acquisition channel, and the respiratory feedback signal is input to the signal acquisition circuit through the selected respiratory signal acquisition channel to obtain the respiratory signal;

[0122] According to the signal acquisition instruction, the third analog switch is switched to select the electrocardio signal acquisition channel in the signal acquisition channel corresponding to any two of the left upper limb lead, the right upper limb lead and the left leg lead, and the electrocardio signal of the limb lead is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel;

[0123] The fourth analog switch controls the selection of the ECG signal acquisition channel in the signal acquisition channel corresponding to the other of the left upper limb lead, the right upper limb lead, and the left leg lead, and inputs the limb lead ECG signal to the signal acquisition circuit through the selected ECG signal acquisition channel.

[0124] The right leg lead is controlled as an output channel of the signal acquisition circuit, and the right leg drive signal is applied to the human body through the output channel to reduce the common mode interference generated by the human body.

[0125] The chest lead is controlled as an ECG signal acquisition channel of the signal acquisition circuit to input the chest lead ECG signal to the signal acquisition circuit.

[0126] Specifically, the five-electrode lead adds one chest lead compared to the four-electrode lead, and the chest lead can detect the chest lead ECG signal of any part of the human body, and the position can be flexibly selected according to clinical needs. Taking II lead respiration / ECG as an example (other signals are similar), the following is explained:

[0127] The first analog switch: the position is downward, the respiration signal acquisition channel is selected, and the respiration feedback signal of the human body is input to the signal acquisition circuit through the respiration signal acquisition channel.

[0128] The second analog switch: the position is downward, the respiration signal acquisition channel is selected, the respiration excitation signal is first output to the human body, the respiration feedback signal is generated according to the impedance change of the human body, the II lead respiration feedback signal is selected to be input, and is input to the signal acquisition circuit through the first analog switch; at the same time, the respiration modulation signal output by the signal acquisition circuit is received and output to the human body through the defibrillation protection circuit.

[0129] The third analog switch: the position is downward, the ECG signal acquisition channel in the signal acquisition channel corresponding to any two of the left upper limb lead, the right upper limb lead, and the left leg lead is selected, and the limb lead ECG signal is input to the signal acquisition circuit through the selected ECG signal acquisition channel. Specifically, the filtered II lead ECG signal is selected to be input to the signal acquisition circuit to complete sampling.

[0130] The fourth analog switch: the position is upward, the ECG signal acquisition channel in the signal acquisition channel corresponding to the other of the left upper limb lead, the right upper limb lead, and the left leg lead is selected, and the limb lead ECG signal is input to the signal acquisition circuit through the selected ECG signal acquisition channel.

[0131] And, the right leg lead is controlled as an output channel of the signal acquisition circuit, and the right leg drive signal is applied to the human body through the output channel to reduce the common mode interference generated by the human body.

[0132] The chest lead is input to the signal acquisition circuit as a signal acquisition channel of the signal acquisition circuit.

[0133] In some embodiments, when the signal acquisition device 200 is identified as a ten-lead electrode, the ten-lead electrode includes a left upper limb lead, a right upper limb lead, a left leg lead, a right leg lead, and six chest leads; the left upper limb lead, the right upper limb lead, and the left leg lead are used to acquire limb lead electrocardio signals, and the six chest leads are used to acquire chest lead electrocardio signals; and the method further includes at least one of the following steps:

[0134] According to the signal acquisition instruction, the first analog switch is controlled to select an electrocardio signal acquisition channel in a signal acquisition channel corresponding to one of the six chest leads, and the chest lead electrocardio signal is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel.

[0135] According to the signal acquisition instruction, the third analog switch is controlled to select an electrocardio signal acquisition channel in a signal acquisition channel corresponding to any two of the left upper limb lead, the right upper limb lead, and the left leg lead, and the limb lead electrocardio signal is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel.

[0136] According to the signal acquisition instruction, the fourth analog switch is controlled to select an electrocardio signal acquisition channel in a signal acquisition channel corresponding to the other one of the left upper limb lead, the right upper limb lead, and the left leg lead, and the limb lead electrocardio signal is input to the signal acquisition circuit through the selected electrocardio signal acquisition channel.

[0137] The right leg lead is controlled as an output channel of the signal acquisition circuit, and a right leg drive signal is applied to the human body through the output channel to reduce common-mode interference generated by the human body.

[0138] The chest lead electrocardio signals of the remaining five chest leads of the six chest leads are received.

[0139] Specifically, the ten-lead electrode supports 12-lead input and does not support respiratory function. The analog switch is set as follows:

[0140] The first analog switch: position up, selects an electrocardio signal acquisition channel in a signal acquisition channel corresponding to one of the six chest leads, and inputs the chest lead electrocardio signal to the signal acquisition circuit through the selected electrocardio signal acquisition channel. For example, the chest lead V6 signal is selected to be input to the signal acquisition circuit, and the respiratory monitoring function is closed.

[0141] The second analog switch: not in operation because the respiratory monitoring function is closed.

[0142] The third analog switch: the position is downward, selecting the ECG signal acquisition channel in the signal acquisition channel corresponding to any two of the left upper limb lead, the right upper limb lead, and the left leg lead, and inputting the limb lead ECG signal to the signal acquisition circuit through the selected ECG signal acquisition channel. Specifically, the filtered II lead ECG signal is selected to be input to the signal acquisition circuit for sampling.

[0143] The fourth analog switch: the position is upward, selecting the ECG signal acquisition channel in the signal acquisition channel corresponding to the other of the left upper limb lead, the right upper limb lead, and the left leg lead, and inputting the limb lead ECG signal to the signal acquisition circuit through the selected ECG signal acquisition channel.

[0144] In the above embodiment, the configuration of the multiple analog switches is used to support the collection of different respiratory waveforms and respiratory rates of the I lead (left arm lead-right arm lead) and the II lead (left leg lead-right arm lead) through analog switch switching, so as to meet the needs of different people for chest breathing (I lead) and abdominal breathing (II lead).

[0145] Embodiment two

[0146] In this embodiment, an ECG monitoring device 100 is also provided, which is detachably installed on the base 210 of the signal acquisition device 200. The ECG monitoring device 100 comprises a first shell 11 and a second shell 12 connected in two parts. The first shell 11 and the second shell 12 enclose a cavity. The first shell 11 is detachably installed with a circuit board 20. The circuit board 20 is provided with a signal acquisition circuit and a control circuit. The control circuit comprises a microprocessor, which comprises:

[0147] A monitoring unit is configured to detect whether the base 210 is in electrical connection with the ECG monitoring device 100.

[0148] A type identification unit is configured to identify the type of the signal acquisition device 200 when the base 210 is in electrical connection with the ECG monitoring device 100.

[0149] An instruction receiving unit is configured to receive a signal acquisition instruction adapted to the type of the signal acquisition device 200.

[0150] A processing unit is configured to implement the signal acquisition method according to any one of the above embodiments in response to the signal acquisition instruction according to the identified type of the signal acquisition device 200 and the signal acquisition instruction.

[0151] In some embodiments, the first shell 11 is further provided with an NFC data acquisition device. The NFC data acquisition device is configured to read the information about the type of the signal acquisition device 200 stored in the NFC tag, so as to identify the type of the signal acquisition device 200.

[0152] As shown in Figures 3 to 6 The ECG monitoring device 100 includes a battery 40 mounted on the second housing 12, which supplies power to the circuit board 20 to meet the power consumption requirements of the ECG monitoring device 100. The second housing 12 is provided with a mounting portion 41 for accommodating the battery 40. In some embodiments, the battery 40 is provided with a connecting structure, and the second housing 12 is provided with a mounting groove, and the battery 40 is mounted in the mounting groove through the connecting structure, thereby achieving the mounting of the battery 40 on the second housing 12.

[0153] In some embodiments, the base 210 is mounted with a lead wire 300, one end of which is mounted on the base 210 and exposed to form a metal contact 220, and the metal contact 220 exposed by the second housing 12 is in contact with and electrically connected to the conductive connecting piece 30. The metal contact 220 is arranged in the circumferential direction of the base 210. Specifically, the metal contact 220 can be arranged in the half region of the base 210 where the telescopic buckle 230 is arranged, so that when the ECG monitoring device 100 is mounted on the base 210 and the ECG monitoring device 100 is flipped towards the base 210, the conductive connecting piece 30 is ensured to be in abutting contact with the corresponding metal contact 220 on the base 210, which can reduce the influence of the ECG monitoring device 100 on the conductive connecting piece 30 when the ECG monitoring device 100 is assembled on the base 210. The base 210 is provided with at least one telescopic buckle 230 arranged on the base 210, and the telescopic buckle 230 is used to limit and fix the ECG monitoring device 100 on the base 210. The telescopic buckle 230 is connected with the unlocking button 240, and the user can press the unlocking button 240 to release the limiting function of the telescopic buckle 230 on the ECG monitoring device 100, so as to facilitate the disengagement of the ECG monitoring device 100 from the base 210.

[0154] In some embodiments, the microprocessor further includes a tag identification module for identifying the anti-fake tag of the signal collector 200.

[0155] It can be understood that the signal collector 200 can also be divided into a single-use signal collector 200 and a reusable signal collector 200 according to the use case; when used once, the authenticity of the signal collector 200 can be identified. It can be understood that the signal collector 200 includes an ECG lead wire and a patch-type ECG sensor. Since the ECG lead wire is generally configured for repeated use, the following will take the patch-type ECG sensor as an example to describe the anti-fake method.

[0156] In one exemplary embodiment, the tag identification module is further configured to identify the anti-counterfeiting tag in the patch-type ECG sensor, obtain the identification information, production information and first encrypted information in the anti-counterfeiting tag, and upload the identification information, production information and first encrypted information to the central station; the central station is configured to perform authenticity identification on the patch-type ECG sensor based on the identification information, production information and first encrypted information.

[0157] The first encrypted information is obtained by encrypting the identification information and the production information.

[0158] The identification information is used to characterize the uniqueness of the patch-type ECG sensor.

[0159] The production information may include the batch number, manufacturing date, model number, and encryption information of the patch-type ECG sensor.

[0160] The anti-counterfeiting label is an NFC label.

[0161] In specific implementation, such as Figure 7 The diagram illustrates the principle of anti-counterfeiting identification for a patch-type ECG sensor according to an embodiment. During the manufacturing process of the patch-type ECG sensor, the manufacturer burns production information into an anti-counterfeiting label and uploads the corresponding information to a central station. The ECG monitoring device 100 is equipped with a tag identification module containing an NFC antenna, which has NFC reader functionality. During use, it can identify the anti-counterfeiting label embedded in the patch-type ECG sensor and obtain the unique identifier (UID), production information, and first encrypted information of the patch-type ECG sensor from the anti-counterfeiting label. The obtained identification information, production information, and first encrypted information are then uploaded to the central station. The central station decrypts the first encrypted information to obtain the identification information and production information. It then compares the decrypted identification information and production information with the identification information and production information identified from the anti-counterfeiting label to achieve authenticity verification. Specifically, if either the identification information or the production information is inconsistent, the patch-type ECG sensor is counterfeit; otherwise, it is genuine.

[0162] In this embodiment, by setting an anti-counterfeiting label in the patch-type ECG sensor, the identification information, production information and first encrypted information in the anti-counterfeiting label are obtained through the label recognition module, and this information is uploaded to the central station so that the central station can identify the authenticity based on the identification information, production information and first encrypted information, thereby ensuring the security of the patch-type ECG sensor.

[0163] In another exemplary embodiment, the tag recognition module is also used to identify the anti-counterfeiting tag in the patch-type electrocardiogram sensor, obtain the identification information, production information and second encrypted information in the anti-counterfeiting tag, and upload the identification information, production information and second encrypted information to the central station;

[0164] The central station is also configured to acquire, in the networked state, reserved information not contained in the anti-counterfeit label from a server; and perform authenticity identification on the patch-type electrocardio sensor based on the identification information, the production information, the second ciphertext information and the reserved information.

[0165] The second ciphertext information is encrypted by the identification information, the production information and the reserved information.

[0166] In a specific implementation, as shown in Figure 7 the production information is burned into the anti-counterfeit label, the reserved information of one field is not burned into the label but stored in the server, and the second ciphertext information is encrypted by the identification information, the production information and the reserved information. Thus, after the central station decrypts the second ciphertext information to obtain the identification information, the production information and the reserved information, the identification information and the production information obtained by decryption are compared with the identification information and the production information identified from the anti-counterfeit label, the reserved information obtained by decryption is compared with the reserved information acquired from the server, and the authenticity identification result of the patch-type electrocardio sensor is determined according to the comparison results of the identification information, the production information and the reserved information. If one of the identification information, the production information and the reserved information is inconsistent, the patch-type electrocardio sensor is counterfeit; otherwise, the patch-type electrocardio sensor is authentic.

[0167] In some embodiments, the encrypted information can also be guaranteed to be traceable and anti-counterfeit by means of the blockchain technology and regular cancellation. For example, after each patch-type electrocardio sensor is used, the related information of the patch-type electrocardio sensor is deleted from the server, and the anti-counterfeit is performed by cancellation.

[0168] In this embodiment, by selecting the reserved information of one field not to be burned into the label but stored in the server when the production information is burned into the anti-counterfeit label, and encrypting the second ciphertext information according to the identification information, the production information and the reserved information, the reserved information in the server needs to be acquired by networking to complete the identification when performing authenticity identification, and the anti-counterfeit effect is further improved.

[0169] Reference is made to Figure 8 for an internal structure schematic diagram of the electrocardio monitoring device 100. As shown in Figure 8As shown, the electrocardio monitoring device 100 includes, in addition to the tag identification module (NFC reader), signal switching circuit and signal acquisition circuit, a front-end protection module, a signal conditioning module, a pacing signal processing module, etc. The switching of electrocardio / respiration signals is realized through the analog switches of the signal switching circuit; the front-end protection module uses, but is not limited to, transient voltage suppression diodes (TVS tubes), anti-defibrillation chips, gas discharge tubes, etc. to complete the input conditioning / ESD (electrostatic protection) / anti-defibrillation protection of the signals; the signal conditioning module filters out the high-frequency interference components existing in the signals through a resistance-capacitance unit to form a signal low-pass filter.

[0170] (1) Part of the front-end protection module is arranged in the signal collector 200, and an anti-defibrillation resistor is arranged in the signal collector 200 to dissipate the energy of defibrillation; another part of the front-end protection module is arranged in the electrocardio monitoring device 100, including an anti-defibrillation chip and a protection circuit, and the anti-defibrillation chip and the protection circuit combine to limit the current of the high-voltage pulse of defibrillation to a safe range. Specifically, the anti-defibrillation function of the front-end protection module is mainly realized by 2 parts: the first part is located in the signal collector 200, and an anti-defibrillation resistor is arranged therein to dissipate most of the energy of defibrillation in the form of heat; the second part is located in the electrocardio monitoring device 100, including an anti-defibrillation chip and a secondary protection circuit, and the two combine to limit the current of the high-voltage pulse of defibrillation to a safe range. Among them, the anti-defibrillation chip has the characteristics of small size, low leakage current and high repetition frequency, and its function is mainly used to quickly clamp the high-voltage pulse of 5000V defibrillation to about 10V (ms level), and other voltages and energies are consumed through the anti-defibrillation resistor of the first part; the secondary protection circuit further limits the current of the 10V signal to the acceptable range of the rear circuit according to the IO input range of the recorder internal chips, protects the normal work of the rear circuit, and can be realized by using ordinary resistance or anti-pulse resistance. In some embodiments, the anti-defibrillation chip can be selected from lightning protection tubes or integrated chips. Considering the size requirement, an integrated chip can be used. It should be noted that the defibrillation function can only be realized in the repeatedly used electrocardio lead line. In this embodiment, in cooperation with the anti-defibrillation resistor of the electrocardio signal collector 200, the electrocardio monitoring device 100 can realize the anti-defibrillation function to protect the normal use of the electrocardio monitoring device 100, while not affecting the defibrillation energy.

[0171] (2) Signal conditioning module, the signal conditioning module is used to filter out the high-frequency interference components existing in the electrocardio signal / pacing signal through a resistance-capacitance unit to form a signal low-pass filter, such as an RC filter.

[0172] In some embodiments, the device further comprises a respiration detection module for generating an excitation signal, applying the excitation signal to the collected object, and obtaining respiration information of the collected object according to a respiration feedback signal of the collected object. In a specific implementation, impedance method can be used for respiration monitoring. By giving a certain excitation signal to the human body, the excitation signal combines with the change of the chest volume during respiration to generate a respiration feedback electrical signal. By collecting the feedback information, the respiration rate and respiration waveform of the human body can be obtained, and the heart rate and waveform can be displayed through the host and the remote central station software. Impedance method is used to detect lead I respiration (LA-RA) and lead II respiration (LL-RA). Specifically, a high-frequency excitation square wave signal is first generated, and a high-frequency square wave modulation signal is generated through an internal circuit, such as 32 kHz. Through R1 and C1, the direct current waveform is converted into an alternating current waveform, and at the same time, through the current limiting of R1, the current acting on the human body is reduced. In order to reduce the number of interfaces, the respiration channel excitation signal and the electrocardiogram signal / pacing signal share the same physical channel (such as the LA-RA channel). Then, the respiration feedback signal is modulated and demodulated. When the human body breathes, the volume of the chest changes regularly, which corresponds to the breathing action of the human body. When the excitation signal acts on the human body, the regular volume change of the chest appears as a regular change in the electrical resistance of the human body base resistance R3+ regular change in resistance δR. The regular voltage and current on δR reflect the respiration change of the human body. After being conditioned through the anti-fibrillation resistor R2 and the 1-order HPF filter (which functions as an AC coupling and biasing to the intermediate power supply), the signal enters the internal circuit for demodulation processing, and finally the real-time respiration waveform and respiration rate of the human body are obtained.

[0173] In some embodiments, the device further comprises a motion detection module for detecting the motion state of the collected object. For example, the motion state can include rest, sleep, motion, and fall. In a specific implementation, the electrocardiogram monitoring device 100 can be equipped with a 6-axis motion sensor, including a 3-axis acceleration + 3-axis gyroscope, for monitoring the motion state of the human body.

[0174] As shown in FIG. 1, Figure 9 The electrocardiogram monitoring device 100 is also provided with an elastic touch area 104 for receiving user pressing to realize event recording function, and a charging interface 105 which can support multiple charging methods, support flexible power supply during wearing, and does not need to classify the electrocardiogram monitoring device 100 and the signal collector 200, so as to realize super-long endurance of dynamic electrocardiogram acquisition.

[0175] In some embodiments, the charging method of the electrocardiogram monitoring device 100 includes the following methods:

[0176] (1) Through a customized USB Type-C interface, an adapter and a customized USB Type-C data line are used to charge through the charging interface 105.

[0177] (2) After the power of the detachable battery assembly of the electrocardio monitoring device 100 is consumed, it is detached and installed into the centralized charger slot for charging.

[0178] (3) The electrocardio monitoring device 100 is installed into the centralized charger slot as a whole, and the device can be charged through the bottom patch-type electrocardio sensor interface. The schematic diagram of the centralized charger is shown in Figure 10 , which includes a plurality of charger slots 90, and the charger slots 90 are adapted to the shape of the electrocardio monitoring device 100.

[0179] In some embodiments, the patch-type electrocardio sensor interface can adopt a pluggable design to support a plurality of models of single-use and reusable patch-type electrocardio sensors and electrocardio lead wires, and can be designed to have an NFC wireless interface model identification function to support wireless NFC interface model identification and information management. This design can improve the compatibility of electrocardio lead wires and patch-type electrocardio sensors, and has the ability of wireless model identification and information management.

[0180] In some embodiments, the present application also provides an electrocardio monitoring system, which includes the electrocardio monitoring device 100 and the signal collector 200 provided by any of the above embodiments, and realizes long-range acquisition and monitoring of electrocardio signals.

[0181] It should be understood that although each step in the flowchart involved in each of the above embodiments is displayed in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless otherwise stated herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other orders. Moreover, at least part of the steps in the flowchart involved in each of the above embodiments can include multiple steps or stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed in rotation or alternation with at least part of other steps or steps or stages in other steps.

[0182] In one embodiment, a computer device, which can be a terminal, is provided, and its internal structure diagram can be as shown in Figure 11As shown in the figure. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The communication interface of the computer device is used for wired or wireless communication with external terminals. Wireless communication can be achieved through WIFI, mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by the processor to implement a physiological signal acquisition method. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the shell of the computer device, or an external keyboard, touchpad or mouse, etc.

[0183] Those skilled in the art can understand that, Figure 11 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. A specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0184] In one embodiment, a computer device is also provided, including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps in each of the above method embodiments.

[0185] In one embodiment, a computer readable storage medium is provided, which stores a computer program, and the computer program is executed by a processor to implement the steps in each of the above method embodiments.

[0186] In one embodiment, a computer program product is provided, including a computer program, and the computer program is executed by a processor to implement the steps in each of the above method embodiments.

[0187] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant laws, regulations and standards of relevant countries and regions.

[0188] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the processes of the above-mentioned embodiments of the methods can be included. Any reference to memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0189] Any combination of the technical features of the above embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist, it should be considered as the scope of the present application.

[0190] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A signal acquisition method, characterized in that, The method is applied to an electrocardiogram (ECG) monitoring device (100), which is detachably mounted on the base (210) of a signal acquisition device (200) to receive and store physiological signals acquired by the signal acquisition device (200). The ECG monitoring device (100) is equipped with a signal switching circuit and a signal acquisition circuit. The signal acquisition circuit includes a signal acquisition channel. The signal switching circuit includes a first analog switch, a second analog switch, a third analog switch, and a fourth analog switch. Each analog switch is a configurable analog switch. The first analog switch is a double-pole double-throw switch for selecting the V6 signal of the ten-electrode lead and other respiratory feedback signals. The second analog switch is a double-pole double-throw switch for selecting the respiratory signals of lead I and lead II, excluding the ten-electrode lead. The third analog switch is a double-pole double-throw switch for selecting the ECG of lead I, lead II, and lead III. The fourth analog switch is a single-pole four-throw switch for outputting the right leg drive signal in the case of three electrodes or inputting the lead II signal in other types of cases. The method includes: The base (210) is tested in place to detect whether the signal acquisition device (200) is electrically connected to the electrocardiogram monitoring device (100); When the signal acquisition device (200) is found to be electrically connected to the electrocardiogram monitoring device (100), the type of the signal acquisition device (200) is identified; Receive signal acquisition commands that are compatible with the type of the signal acquisition device (200); In response to the signal acquisition command, at least one physiological signal is acquired according to the identified type of the signal acquisition device (200) and the signal acquisition command; The method further includes: controlling the conduction of the first analog switch, the second analog switch, the third analog switch, and the fourth analog switch to select a signal acquisition channel according to the signal acquisition command; and controlling the selected signal acquisition channel to input the acquired at least one physiological signal to the signal acquisition circuit.

2. The signal acquisition method according to claim 1, characterized in that, The signal acquisition device (200) is a three-electrode lead; the three-electrode lead includes a left upper limb lead, a right upper limb lead and a left leg limb lead, and two of the left upper limb lead, right upper limb lead and left leg limb lead are selected to acquire limb lead electrocardiogram signals, and the other limb lead is used as an output channel; The method further includes at least one of the following steps: A respiratory excitation signal is generated according to the signal acquisition command, and the second analog switch is controlled to output the respiratory excitation signal to the human body. The impedance change of the human body is monitored to generate a respiratory feedback signal. The control switches the first analog switch and the second analog switch to select the respiratory signal acquisition channel in the signal acquisition channel, and inputs the respiratory feedback signal to the signal acquisition circuit through the selected respiratory signal acquisition channel. The control switch selects the ECG signal acquisition channel from two signal acquisition channels corresponding to the limb leads, and inputs the limb lead ECG signal to the signal acquisition circuit through the selected ECG signal acquisition channel. The control switches the fourth analog switch to select another limb lead as the output channel, and applies the right leg drive signal generated by the control to the human body through the output channel to reduce common-mode interference generated by the human body.

3. The signal acquisition method according to claim 1, characterized in that, The signal acquisition device (200) is identified as a four-electrode lead; the four-electrode lead includes a left upper limb lead, a right upper limb lead, a left leg limb lead, and a right leg limb lead; the left upper limb lead, the right upper limb lead, and the left leg limb lead are used to acquire limb lead electrocardiogram signals; the method further includes at least one of the following steps: A respiratory excitation signal is generated according to the signal acquisition command, and the second analog switch is controlled to output the respiratory excitation signal to the human body. The impedance change of the human body is monitored to generate a respiratory feedback signal. The control switches the first analog switch and the second analog switch to select the respiratory signal acquisition channel in the signal acquisition channel, and inputs the respiratory feedback signal to the signal acquisition circuit through the selected respiratory signal acquisition channel. According to the signal acquisition command, the third analog switch is controlled to select the ECG signal acquisition channel from any two signal acquisition channels of the left upper limb lead, the right upper limb lead, and the left leg limb lead, and the ECG signal of the limb lead is input to the signal acquisition circuit through the selected ECG signal acquisition channel; The control switches the fourth analog switch to select the ECG signal acquisition channel from the signal acquisition channels of the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputs the limb lead ECG signal to the signal acquisition circuit through the selected ECG signal acquisition channel; The right leg limb lead is controlled as the output channel of the signal acquisition circuit. The right leg drive signal is applied to the human body through the output channel to reduce common-mode interference generated by the human body.

4. The signal acquisition method according to claim 1, characterized in that, The signal acquisition device (200) is identified as a five-electrode lead, which includes a left upper limb lead, a right upper limb lead, a left leg limb lead, a right leg limb lead, and a chest lead; the left upper limb lead, the right upper limb lead, and the left leg limb lead are used to acquire limb lead ECG signals; the chest lead is used to acquire chest lead ECG signals; the method further includes at least one of the following steps: A respiratory excitation signal is generated according to the signal acquisition command, and the second analog switch is controlled to output the respiratory excitation signal to the human body. The impedance change of the human body is monitored to generate a respiratory feedback signal. The first analog switch and the second analog switch are controlled to select the respiratory signal acquisition channel in the signal acquisition channel. The respiratory feedback signal is input to the signal acquisition circuit through the selected respiratory signal acquisition channel to obtain the respiratory signal. According to the signal acquisition command, the third analog switch is controlled to select the ECG signal acquisition channel from any two signal acquisition channels of the left upper limb lead, the right upper limb lead, and the left leg limb lead, and the ECG signal of the limb lead is input to the signal acquisition circuit through the selected ECG signal acquisition channel; The control switches the fourth analog switch to select the ECG signal acquisition channel among the signal acquisition channels of the left upper limb lead, the right upper limb lead, and the left leg limb lead, and input the limb lead ECG signal to the signal acquisition circuit through the selected ECG signal acquisition channel; The right leg limb lead is used as the output channel of the signal acquisition circuit. The right leg drive signal is applied to the human body through the output channel to reduce common-mode interference generated by the human body. The chest leads are controlled as the ECG signal acquisition channel of the signal acquisition circuit, and the ECG signals from the chest leads are input to the signal acquisition circuit.

5. The signal acquisition method according to claim 1, characterized in that, The signal acquisition device (200) is identified as a ten-electrode lead, which includes a left upper limb lead, a right upper limb lead, a left leg limb lead, a right leg limb lead, and six chest leads; the left upper limb lead, the right upper limb lead, and the left leg limb lead are used to acquire limb lead ECG signals, and the six chest leads are used to acquire chest lead ECG signals; the method further includes at least one of the following steps: According to the signal acquisition command, the first analog switch is controlled to select the ECG signal acquisition channel in the signal acquisition channel corresponding to one of the six chest leads, and the chest lead ECG signal is input to the signal acquisition circuit through the selected ECG signal acquisition channel. According to the signal acquisition command, the third analog switch is controlled to select the ECG signal acquisition channel from any two signal acquisition channels of the left upper limb lead, the right upper limb lead, and the left leg limb lead, and the ECG signal of the limb lead is input to the signal acquisition circuit through the selected ECG signal acquisition channel; According to the signal acquisition command, the fourth analog switch is controlled to select the ECG signal acquisition channel in the signal acquisition channel corresponding to another limb lead among the left upper limb lead, the right upper limb lead, and the left leg limb lead, and the limb lead ECG signal is input to the signal acquisition circuit through the selected ECG signal acquisition channel; The right leg limb lead is used as the output channel of the signal acquisition circuit. The right leg drive signal is applied to the human body through the output channel to reduce common-mode interference generated by the human body. It receives the ECG signals from the remaining five chest leads of the six chest leads.

6. The signal acquisition method according to any one of claims 1 to 5, characterized in that, The base (210) is equipped with an NFC tag, and the electrocardiogram monitoring device (100) is equipped with an NFC data collector; The type of the identification signal collector (200) includes: The NFC data collector reads the information stored in the NFC tag. The type of the signal collector (200) is identified by reading information from the NFC tag.

7. An electrocardiogram (ECG) monitoring device, characterized in that, For detachable mounting on the base (210) of the signal acquisition unit (200), the electrocardiogram monitoring device (100) includes a first housing (11) and a second housing (12) connected separately. The first housing (11) and the second housing (12) enclose a cavity. A circuit board (20) is detachably mounted on the first housing (11). The circuit board (20) is provided with a signal acquisition circuit and a control circuit. The control circuit includes a microprocessor, which includes: The monitoring unit is used to perform in-situ detection on the base (210) and to detect whether the signal acquisition device (200) is electrically connected to the electrocardiogram monitoring device (100); A type identification unit is used to identify the type of the signal acquisition device (200) when the signal acquisition device (200) is detected to be electrically connected to the electrocardiogram monitoring device (100); The instruction receiving unit is used to receive signal acquisition instructions that are compatible with the type of the signal acquisition device (200); A processing unit is configured to, in response to the signal acquisition command, implement the signal acquisition method as claimed in any one of claims 1 to 6 according to the identified type of the signal acquisition device (200) and the signal acquisition command.

8. The electrocardiogram monitoring device according to claim 7, characterized in that, The second housing (12) is also provided with an NFC data collector; the NFC data collector is used to read the information stored in the NFC tag provided on the base (210) to identify the type of the signal collector (200) connected to the base (210).

9. The electrocardiogram monitoring device according to claim 7, characterized in that, The microprocessor also includes a tag recognition module, which is used to identify the anti-counterfeiting tag of the signal collector (200).

10. An electrocardiogram (ECG) monitoring system, characterized in that, Includes the electrocardiogram monitoring device (100) and signal acquisition device (200) as described in any one of claims 7-9.

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