Signal acquisition method, electrocardiogram monitoring equipment and electrocardiogram monitoring system

Abstract

The invention relates to a signal acquisition method, electrocardiogram monitoring equipment and an electrocardiogram monitoring system.The method is applied to the electrocardiogram monitoring equipment, the electrocardiogram monitoring equipment is used for being detachably installed on a base of a signal acquirer and receiving and storing physiological signals acquired by the signal acquirer, and the method comprises the steps that in-situ detection is conducted on the base, detecting whether the signal collector is conductively connected with the electrocardiogram monitoring equipment or not; identifying the type of the signal collector under the condition that the detection signal collector is conductively connected with the electrocardiogram monitoring equipment; receiving a signal acquisition instruction matched with the type of the signal acquirer; and in response to a signal acquisition instruction, acquiring at least one physiological signal according to the identified signal acquirer type and the signal acquisition instruction. By adopting the scheme, the flexibility and adaptability of the electrocardiogram monitoring equipment can be improved.

Description

Technical Field

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

[0002] In monitoring scenarios, it is necessary to use different types of ECG acquisition devices to collect ECG signals according to configuration instructions. This results in complex circuit structures of ECG monitoring equipment used to collect and record ECG signals, a large number of circuit components, and low signal acquisition efficiency, which limits the application scope of ECG monitoring equipment. Summary of the invention

[0003] Based on this, it is necessary to provide a signal acquisition method, an ECG monitoring device and an ECG monitoring system to address the technical problem that the application scope of the above-mentioned ECG 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, wherein the electrocardiogram monitoring device is used to be detachably mounted on a base of a signal collector, and receives and stores physiological signals collected by the signal collector, and the method comprises:

[0005] Performing an in-situ detection on the base to detect whether the signal collector is electrically connected to the electrocardiogram monitoring device;

[0006] When the detection signal collector is electrically connected to the electrocardiogram monitoring device, identifying the type of the signal collector;

[0007] Receiving a signal acquisition instruction compatible with the type of the signal collector;

[0008] In response to the signal collection instruction, at least one physiological signal is collected according to the identified signal collector type and the signal collection instruction.

[0009] In one embodiment, the ECG monitoring device is configured with a signal switching circuit and a signal acquisition circuit, the signal switching circuit includes a first analog switch, a second analog switch, a third analog switch and a fourth analog switch, and the signal acquisition circuit includes a signal acquisition channel;

[0010] The method further comprises:

[0011] 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 instruction;

[0012] The selected signal acquisition channel is controlled to input the collected at least one physiological signal into 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 limb lead, and two limb leads are selected from the left upper limb lead, the right upper limb lead and the left leg limb lead to collect limb lead ECG signals, and the other limb lead is used as an output channel;

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

[0015] Generate a breathing excitation signal according to the signal acquisition instruction, control and switch the second analog switch to output the breathing excitation signal to the human body, and monitor the impedance change of the human body to generate a breathing feedback signal;

[0016] Control switching the first analog switch and the second analog switch to select a respiratory signal acquisition channel in the signal acquisition channel, and input the respiratory feedback signal into the signal acquisition circuit through the selected respiratory signal acquisition channel;

[0017] Controlling the switching of the third analog switch to select an ECG signal acquisition channel among the two signal acquisition channels corresponding to the limb leads, and inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0018] The fourth analog switch is controlled to switch to select another limb lead as an output channel, and the right leg driving signal generated by the control is applied to the human body through the output channel to reduce the common mode interference generated by the human body.

[0019] In one embodiment, 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 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 collect limb lead ECG signals; the method further includes at least one of the following steps:

[0020] Generate a breathing excitation signal according to the signal acquisition instruction, control and switch the second analog switch to output the breathing excitation signal to the human body, and monitor the impedance change of the human body to generate a breathing feedback signal;

[0021] Control switching the first analog switch and the second analog switch to select a respiratory signal acquisition channel in the signal acquisition channel, and input the respiratory feedback signal into the signal acquisition circuit through the selected respiratory signal acquisition channel to obtain a respiratory signal;

[0022] According to the signal acquisition instruction, the third analog switch is controlled to switch to select the ECG signal acquisition channel in the signal acquisition channels corresponding to any two limb leads 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 into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0023] Controlling the switching of the fourth analog switch to select an 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 inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

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

[0025] In one embodiment, the signal collector type is identified as a five-electrode lead, and the five-electrode lead 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 collect limb lead ECG signals; the chest lead is used to collect chest lead ECG signals; and the method further includes at least one of the following steps:

[0026] Generate a breathing excitation signal according to the signal acquisition instruction, control and switch the second analog switch to output the breathing excitation signal to the human body, and monitor the impedance change of the human body to generate a breathing feedback signal;

[0027] Control switching the first analog switch and the second analog switch to select a respiratory signal acquisition channel in the signal acquisition channel, and input the respiratory feedback signal into the signal acquisition circuit through the selected respiratory signal acquisition channel to obtain a respiratory signal;

[0028] According to the signal acquisition instruction, the third analog switch is controlled to switch to select the ECG signal acquisition channel in the signal acquisition channels corresponding to any two limb leads 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 into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0029] Controlling the switching of the fourth analog switch to select an 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 inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

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

[0031] The chest leads are controlled to serve as an ECG signal acquisition channel of a signal acquisition circuit to input the chest lead ECG signals into the signal acquisition circuit.

[0032] In one embodiment, the signal collector type is identified as a ten-electrode lead, the ten-electrode lead 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 collect limb lead ECG signals, and the chest lead is used to collect chest lead ECG signals; the method further includes at least one of the following steps:

[0033] Controlling the switching of the first analog switch according to the signal acquisition instruction to select an ECG signal acquisition channel in the signal acquisition channels corresponding to one of the six chest leads, and inputting the chest lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0034] According to the signal acquisition instruction, the third analog switch is controlled to switch to select the ECG signal acquisition channel in the signal acquisition channels corresponding to any two limb leads 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 into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0035] Controlling the switching of the fourth analog switch according to the signal acquisition instruction to select an 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 inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

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

[0037] The chest lead ECG signals collected by the remaining five chest leads of the six chest leads are received.

[0038] In one embodiment, the signal collector is provided with an NFC tag, and the electrocardiogram monitoring device is provided with an NFC data collector; the method for identifying the type of signal collector connected to the base includes:

[0039] Reading the information stored in the NFC tag by the NFC data collector;

[0040] The type of signal collector connected to the base is identified by information read from the NFC tag.

[0041] In a second aspect, the present application further provides an electrocardiogram monitoring device, which is used to be detachably mounted on a base of a signal collector, wherein the electrocardiogram monitoring device comprises a first shell and a second shell which are detachably connected, wherein the first shell and the second shell are enclosed to form a cavity, and the electrocardiogram monitoring device further comprises a circuit board, wherein the circuit board is provided with a signal acquisition circuit and a control circuit, wherein the control circuit comprises a microprocessor, and the microprocessor comprises:

[0042] A monitoring unit, used to perform in-situ detection on the base to monitor whether the base is in-situ connected;

[0043] A type identification unit, used to identify the type of the signal collector when detecting that the base is electrically connected to the ECG monitoring device;

[0044] An instruction receiving unit, used for receiving a signal acquisition instruction adapted to the type of the signal collector;

[0045] A processing unit is used to respond to the signal acquisition instruction and implement the signal acquisition method of any of the above embodiments according to the identified signal collector type and the signal acquisition instruction.

[0046] In one of the embodiments, an NFC data collector is further provided in the second shell; the NFC data collector is used to read the information stored in the NFC tag provided in the base to identify the type of signal collector connected to the base.

[0047] In a third aspect, the present application also provides an ECG monitoring system, comprising the above-mentioned ECG monitoring device and signal collector.

[0048] The signal acquisition method provided in the present application is applied to electrocardiograph monitoring equipment. By performing in-situ detection on the base of the signal collector, when detecting that the signal collector is conductively connected to the electrocardiograph monitoring equipment, the conductive connection between the signal collector and the electrocardiograph monitoring equipment is identified, the type of the signal collector is identified, a signal acquisition instruction compatible with the type of the signal collector is received, the electrocardiograph signal is collected according to the signal acquisition instruction and the type of the signal collector, and different types of signal collectors are matched to collect the electrocardiograph signal, thereby greatly improving the flexibility and adaptability of the electrocardiograph monitoring equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic diagram of a signal acquisition method in one embodiment;

[0050] Figure 2 A schematic diagram of a flow chart of a signal acquisition method in another embodiment;

[0051] Figure 3 A schematic diagram of the structure of an electrocardiogram monitoring device in an embodiment;

[0052] Figure 4 It is a structural schematic diagram of an electrocardiogram monitoring device in another embodiment;

[0053] Figure 5 It is a structural schematic diagram of an electrocardiogram monitoring device in another embodiment;

[0054] Figure 6 A schematic diagram of the structure of an electrocardiogram monitoring device in another embodiment;

[0055] Figure 7 A schematic diagram of the process of anti-counterfeiting identification in one embodiment;

[0056] Figure 8 A schematic diagram of the internal structure of an electrocardiogram monitoring device in an embodiment;

[0057] Fig. 9 A schematic diagram of an elastic touch area and a charging interface of an electrocardiogram monitoring device in one embodiment;

[0058] Fig.10 is a schematic diagram of a charging method of an electrocardiogram monitoring device in one embodiment;

[0059] Fig.11 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not 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 are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0062] Embodiment 1

[0063] refer to Figure 1 , is a flow chart of a signal acquisition method shown in an embodiment. The signal acquisition method proposed in this application is applied to an ECG monitoring device 100, which can be detachably mounted on a base 210 of a signal collector 200 to receive and store physiological signals collected by the signal collector 200. In this embodiment, the method includes the following steps:

[0064] Step S110, performing an in-situ detection on the base 210 to detect whether the signal collector 200 is conductively connected to the ECG monitoring device 100;

[0065] Step S120, identifying the type of the signal collector 200 when detecting that the signal collector 200 is electrically connected to the electrocardiogram monitoring device 100;

[0066] Step S130, receiving a signal acquisition instruction that matches the type of the signal collector 200;

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

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

[0069] Among them, the types of the signal collector 200 are divided into three-electrode leads, four-electrode leads, five-electrode leads, ten-electrode leads, etc. according to the number of lead cables connected to the base 210 or the number of ECG electrodes.

[0070] Among them, the physiological signals include electrocardiogram signals and may also include respiratory signals.

[0071] It can be understood that the ECG monitoring device 100 receives and stores the physiological signals collected by the signal collector 200, and detects whether the signal collector 200 is conductively connected to the ECG monitoring device 100 through the in-situ detection function of the ECG monitoring device 100. When it is confirmed that the signal collector 200 is conductively connected to the ECG monitoring device 100, the type of the signal collector 200 is identified, and the type of the signal collector 200 is uploaded to the central station. The type of the signal collector 200 is displayed through the central station. The user generates a signal collection instruction according to the type of the signal collector 200 and the actual collection requirements, and sends the signal collection instruction to the ECG monitoring device 100. The ECG monitoring device 100 receives and stores the physiological signals in response to the signal collection instruction.

[0072] In this embodiment, by detecting the base 210 in place, it is detected whether the signal collector 200 is conductively connected to the ECG monitoring device 100; when the signal collector 200 is conductively connected to the ECG monitoring device 100, that is, after confirming that the signal collector 200 and the ECG monitoring device 100 have completed the device connection, the type of the signal collector 200 is identified, and different types of signal collectors 200 support the collection of different physiological signals; a signal collection instruction matching the type of the signal collector 200 is received; 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. In this method, the ECG monitoring device 100 identifies the type of the signal collector 200 and receives physiological signals collected by different types of signal collectors 200, thereby greatly improving the flexibility and adaptability of the ECG monitoring device 100.

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

[0074] Among them, NFC (Near Field Communication) is a contactless identification and interconnection technology. The NFC tag set in the signal collector 200 records the type information of the signal collector 200. The information in the NFC tag is read through the NFC data collector to identify the type of the signal collector 200.

[0075] Specifically, an NFC data collector (such as an NFC antenna) is set in the ECG monitoring device 100 , and the NFC tag is identified by the NFC data collector to obtain the information stored in the NFC tag and identify the type of the signal collector 200 .

[0076] refer to Figure 2 , is a flow chart of a signal acquisition method according to another embodiment. Figure 2 As shown, before receiving the physiological signal, the base 210 is detected in place to confirm whether the signal collector 200 is conductively connected to the ECG monitoring device 100. If so, 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, and the type information of the signal collector 200 is uploaded to the central station. The signal collection instruction matching the signal collector 200 issued by the central station is received, and the signal collection method is executed according to the signal collection instruction.

[0077] In this embodiment, an NFC tag is configured in the signal collector 200, and the NFC tag stores the type information of the signal collector 200. The ECG monitoring device 100 is configured with an NFC data collector. The NFC data collector automatically identifies different types of signal collectors 200 through NFC technology, 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, the hardware design of the ECG monitoring device 100 is optimized through NFC technology, and the size of the device is reduced to meet the requirements of receiving and storing physiological signals under conditions of limited size and area.

[0078] To facilitate understanding of the electrocardiogram monitoring device 100 of the present application, the following is a description of the electrocardiogram monitoring device 100 in conjunction with the attached Figure 3 To Attachment Figure 6 The structure diagram of the electrocardiogram monitoring device 100 is provided for explanation. Figure 3-Figure 6 As shown, the ECG monitoring device 100 includes a first shell 11 and a second shell 12 connected separately, and the first shell 11 and the second shell 12 are enclosed to form a cavity (not shown), and the circuit board 20 is arranged in the cavity. The second shell 12 is fixedly installed with a conductive connector 30, and the base 210 is provided with a metal contact 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 site 21 of the circuit board 20, and the other end of the conductive connector 30 extends out of the outer surface of the second shell 12; when the ECG monitoring device 100 is installed on the base 210, the conductive connector 30 abuts against the metal contact 220 and is conductively connected. The conductive connector 30 is fixedly installed on the second shell 12 and is piezoelectrically connected to the conductive site 21 of the circuit board 20. Specifically, the first shell 11 and the second shell 12 are snap-fitted and connected, and the conductive connector 30 abuts against the circuit board 20 and is conductively connected, ensuring that the conductive connector 30 and the circuit board 20 maintain a stable electrical connection.

[0079] Since the ECG monitoring device 100 needs to transmit the collected physiological signals to the central station or ECG analysis system for symptom analysis, it needs to meet the use requirements of disassembly. Therefore, in order to fully consider the impact of frequent disassembly and installation of the ECG monitoring device 100 on the conductive connector 30, the second shell 12 is integrated with the conductive connector 30. If the conductive connector 30 is damaged during use, the user can directly replace the second shell 12, and the installation is convenient and the cost is controllable. During the replacement process, there is no need to disassemble the circuit board 20, and no destructive damage will be caused to the circuit board 20, avoiding the situation where the ECG monitoring device 100 is scrapped due to the replacement of the conductive connector 30. The figure shows 14 conductive connectors 30, among which 10 conductive connectors conductively connect the signal collector 200 including 10 ECG lead wires or 10 patch ECG electrodes, among which the 10 ECG lead wires or 10 patch ECG 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 ECG lead wires or 10 patch ECG electrodes are provided with defibrillation resistors to support 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, the functions supported by different types of signal collectors 200 are reflected, among which the 3-electrode ECG lead wire is a single lead, namely lead I, lead II, and lead III, and the single lead III does not support the collection of respiratory signals. The 4-electrode patch ECG sensor and the 5-electrode ECG lead wire both support the collection of respiratory signals, pacing signals, and ECG signals. The 10-electrode ECG lead wire does not support the collection of respiratory signals, but supports the collection of pacing signals and ECG signals.

[0081] Table 1 Signal Collector 200 Type Example

[0082]

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

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

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

[0086] The first analog switch: a double-pole double-throw switch, used for selecting the V6 signal of the ten-electrode lead and the respiratory feedback signal of other leads;

[0087] The second analog switch: a double-pole double-throw switch, used for selecting the I-lead respiration and II-lead respiration signals in addition to the ten electrodes;

[0088] The third analog switch: double-pole double-throw switch, used for selection of I-lead ECG, II-lead ECG, and III-lead ECG (three-electrode situation);

[0089] The fourth analog switch: a single-pole four-throw switch, which serves as the output of the right leg drive signal in the three-electrode case or the input of the II-conductor signal in other types of cases.

[0090] Through the above four analog switches, the combination of collecting ECG signals and respiratory signals can be realized.

[0091] Among them, the breathing signal may include chest breathing (lead I, LA-RA) and abdominal breathing (lead II, LL-RA).

[0092] In this method, by setting a switching mechanism of multiple analog switches, the ECG monitoring device 100 switches the state of each analog switch according to actual needs, thereby realizing a usage scenario of dynamically collecting physiological signals.

[0093] The switching principles of various analog switches under different types of signal collectors 200 are described below.

[0094] In some embodiments, when the type of the signal collector 200 is identified as a three-electrode lead through NFC tag information, the three-electrode lead includes a left upper limb lead, a right upper limb lead, and a left leg limb lead; two limb leads are selected from the left upper limb lead, the right upper limb lead, and the left leg limb lead to collect limb lead ECG signals, and the other limb lead is used as an output channel; the signal collection method further includes at least one of the following steps:

[0095] Generate a breathing excitation signal according to the signal acquisition instruction, control and switch the second analog switch to output the breathing excitation signal to the human body, and monitor the impedance change of the human body to generate a breathing feedback signal;

[0096] Control switching the first analog switch and the second analog switch to select a respiratory signal acquisition channel in the signal acquisition channel, and input the respiratory feedback signal into the signal acquisition circuit through the selected respiratory signal acquisition channel;

[0097] Controlling the switching of the third analog switch to select an ECG signal acquisition channel among the two signal acquisition channels corresponding to the limb leads, and inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

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

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

[0100] When RLD is output through another limb lead, the left leg limb lead, it supports I-lead respiration + I-lead pacing + I-lead ECG.

[0101] When RLD is output through the left upper limb lead of another limb lead, it supports II-lead breathing + II-lead pacing + II-lead ECG.

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

[0103] Take the II lead respiration / ECG as an example (the I lead signal is similar), the explanation is as follows:

[0104] The first analog switch: switches to select the respiratory signal acquisition channel, and inputs the human body's respiratory feedback signal into the signal acquisition circuit through the respiratory signal acquisition channel.

[0105] The second analog switch: switch to select the respiratory signal acquisition channel, first output the respiratory excitation signal to the human body, generate a respiratory feedback signal according to the impedance change of the human body, select the II-lead respiratory feedback signal input, and input it to the signal acquisition circuit through the first analog switch; at the same time, receive the respiratory modulation signal output by the signal acquisition circuit.

[0106] The third analog switch: switch and select the ECG signal acquisition channel among the signal acquisition channels corresponding to two limb leads, and input the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel. Specifically, select the II lead ECG signal after filtering and input it into the signal acquisition circuit to complete sampling.

[0107] The fourth analog switch: switches to select another limb lead as the output channel of the signal acquisition circuit. For example, the upper left limb lead is connected. The signal acquisition circuit obtains the right leg driving RLD signal through the upper right limb lead and the left leg limb lead after calculation. The right leg driving RLD signal is output to the human body through the upper left limb lead channel as a human body common mode signal, thereby reducing 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 type of the signal collector 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 collect limb lead ECG signals, and the method further includes at least one of the following steps:

[0110] Generate a breathing excitation signal according to the signal acquisition instruction, control the switching of the second analog switch to output the breathing excitation signal to the human body, and monitor the impedance change of the human body to generate a breathing feedback signal;

[0111] Control switching of the first analog switch and the second analog switch to select a respiratory signal acquisition channel in the signal acquisition channel, and input the human body's respiratory feedback signal into 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 switch to select the ECG signal acquisition channel in the signal acquisition channels corresponding to any two limb leads 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 into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0113] Controlling the switching of the fourth analog switch to select an 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 inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0114] The right leg limb lead is controlled as the output channel of the signal acquisition circuit, and the right leg driving 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 collector 200 is a four-electrode lead, the right leg drive signal no longer reuses the left upper limb lead, the right upper limb lead, and the left leg limb lead output, but uses an independent right leg limb lead. Taking II lead respiration / ECG as an example (other signals are similar), the switching principle of each analog switch when using four electrode leads is described as follows:

[0116] First analog switch: Position downward, select the respiratory signal acquisition channel, and input the human body's respiratory feedback signal into the signal acquisition circuit through the respiratory signal acquisition channel.

[0117] The second analog switch: when in downward position, select the respiratory signal acquisition channel, first output the respiratory excitation signal to the human body, generate a respiratory feedback signal according to the impedance change of the human body, select the II-lead respiratory feedback signal input, and input it to the signal acquisition circuit through the first analog switch; at the same time, receive the respiratory modulation signal output by the signal acquisition circuit, and output it to the human body through the defibrillator protection circuit.

[0118] The third analog switch: when in downward position, selects the ECG signal acquisition channel corresponding to any two limb leads of the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputs the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel. Specifically, selects the II lead ECG signal after filtering and inputs it into the signal acquisition circuit to complete sampling.

[0119] The fourth analog switch: selects the ECG signal acquisition channel among the signal acquisition channels corresponding to the left upper limb lead, the right upper limb lead and the other limb lead of the left leg limb lead, and inputs the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel.

[0120] In some embodiments, when the signal collector 200 is a five-electrode lead, the five-electrode lead 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 collect limb lead ECG signals, and the chest lead is used to collect chest lead ECG signals, and the method further includes at least one of the following steps:

[0121] Generate a breathing excitation signal according to the signal acquisition instruction, control the second analog switch to output the breathing excitation signal to the human body, monitor the impedance change of the human body to generate a breathing feedback signal. Control the switching of the first analog switch and the second analog switch to select a breathing signal acquisition channel in the signal acquisition channel, and input the breathing feedback signal into the signal acquisition circuit through the selected breathing signal acquisition channel to obtain a breathing signal;

[0122] According to the signal acquisition instruction, the third analog switch is controlled to switch to select the ECG signal acquisition channel in the signal acquisition channels corresponding to any two limb leads 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 into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0123] Controlling the fourth analog switch to select an ECG signal acquisition channel among the signal acquisition channels corresponding to another limb lead among the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0124] Control the right leg limb lead as the output channel of the signal acquisition circuit, and apply the right leg driving signal to the human body through the output channel to reduce the common mode interference generated by the human body;

[0125] The chest leads are controlled as the ECG signal acquisition channel of the signal acquisition circuit to input the chest lead ECG signals into the signal acquisition circuit.

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

[0127] First analog switch: Position downward, select the respiratory signal acquisition channel, and input the human body's respiratory feedback signal into the signal acquisition circuit through the respiratory signal acquisition channel.

[0128] The second analog switch: when in downward position, select the respiratory signal acquisition channel, first output the respiratory excitation signal to the human body, generate a respiratory feedback signal according to the impedance change of the human body, select the II-lead respiratory feedback signal input, and input it to the signal acquisition circuit through the first analog switch; at the same time, receive the respiratory modulation signal output by the signal acquisition circuit, and output it to the human body through the defibrillator protection circuit.

[0129] The third analog switch: when in downward position, selects the ECG signal acquisition channel corresponding to any two limb leads of the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputs the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel. Specifically, selects the II lead ECG signal after filtering and inputs it into the signal acquisition circuit to complete sampling.

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

[0131] and, controlling the right leg limb lead as an output channel of the signal acquisition circuit, applying the right leg driving signal to the human body through the output channel to reduce the common mode interference generated by the human body;

[0132] The chest leads are controlled as the ECG signal acquisition channel of the signal acquisition circuit to input the chest lead ECG signals into the signal acquisition circuit.

[0133] In some embodiments, when the type of the signal collector 200 is identified as a ten-electrode lead, the ten-electrode lead 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 collect limb lead ECG signals, and the six chest leads are used to collect chest lead ECG signals; the method further includes at least one of the following steps:

[0134] Controlling the switching of the first analog switch according to the signal acquisition instruction to select an ECG signal acquisition channel in the signal acquisition channels corresponding to one of the six chest leads, and inputting the chest lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0135] According to the signal acquisition instruction, the third analog switch is controlled to switch to select the ECG signal acquisition channel in the signal acquisition channels corresponding to any two limb leads 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 into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0136] Controlling the switching of the fourth analog switch according to the signal acquisition instruction to select an 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 inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel;

[0137] Controlling the right leg limb lead as the output channel of the signal acquisition circuit, and applying the right leg driving signal to the human body through the output channel to reduce the common mode interference generated by the human body;

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

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

[0140] First analog switch: when the position is upward, the ECG signal acquisition channel in the signal acquisition channel corresponding to one of the six chest leads is selected, and the chest lead ECG signal is input to the signal acquisition circuit through the selected ECG 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 turned off.

[0141] Second analog switch: Since the respiratory monitoring function is turned off, it does not work at this time.

[0142] The third analog switch: when in downward position, selects the ECG signal acquisition channel corresponding to any two limb leads among the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputs the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel. Specifically, selects the II lead ECG signal after filtering and inputs it into the signal acquisition circuit to complete sampling.

[0143] The fourth analog switch: when positioned upward, selects the ECG signal acquisition channel corresponding to the other limb lead among the upper left limb lead, the upper right limb lead, and the left leg limb lead, and inputs the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel.

[0144] In the above embodiment, multiple analog switches are configured to facilitate switching through analog switches to support different respiratory waveforms and respiratory rate collection of lead I (left arm limb lead-right arm limb lead) and lead II (left leg limb lead-right arm limb lead), thereby meeting the needs of different people for chest breathing (lead I) and abdominal breathing (lead II).

[0145] Embodiment 2

[0146] In this embodiment, an ECG monitoring device 100 is also proposed, which is used to be detachably mounted on a base 210 of a signal collector 200. The ECG monitoring device 100 includes a first shell 11 and a second shell 12 that are separately connected. The first shell 11 and the second shell 12 enclose a cavity. A circuit board 20 is detachably mounted on the first shell 11. The circuit board 20 is provided with a signal acquisition circuit and a control circuit. The control circuit includes a microprocessor, and the microprocessor includes:

[0147] A monitoring unit, used to perform an in-situ detection on the base 210 to detect whether the base 210 is conductively connected to the ECG monitoring device 100;

[0148] A type identification unit, used to identify the type of the signal collector (20) when the detection base 210 is conductively connected to the electrocardiogram monitoring device 100;

[0149] An instruction receiving unit, used for receiving a signal collection instruction compatible with the type of the signal collector (20);

[0150] The processing unit is used to respond to the signal collection instruction and implement the signal collection method as described in any of the above embodiments according to the identified type of the signal collector 200 and the signal collection instruction.

[0151] In some embodiments, an NFC data collector is further disposed in the first housing 11 ; the NFC data collector is used to read the information of the type of the signal collector 200 stored in the NFC tag to identify the type of the signal collector 200 .

[0152] like Figures 3 to 6 As shown, the ECG monitoring device 100 includes a battery 40, which is mounted on the second housing 12. The battery 40 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, which is used to accommodate the battery 40. In some embodiments, the battery 40 is provided with a connection structure, and the second housing 12 is provided with a mounting groove. The battery 40 is installed in the mounting groove through the connection structure, thereby achieving the installation of the battery 40 on the second housing 12.

[0153] In some embodiments, the base 210 is installed with a lead wire 300, one end of the lead wire 300 is installed on the base (210) and exposed to form a metal contact 220, the metal contact 220 exposed by the second shell 12 contacts and is conductively connected to the conductive connector 30, and 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 area where the retractable buckle 230 is arranged on the base 210, so that when the ECG monitoring device 100 is installed on the base 210, when the ECG monitoring device 100 is turned toward the base 210, it is ensured that the conductive connector 30 is in contact with the corresponding metal contact 220 on the base 210, so that the impact of the ECG monitoring device 100 on the conductive connector 30 when it is assembled on the base 210 can be reduced. At least one telescopic buckle 230 is provided on the base 210. The telescopic buckle 230 is provided on the base 210. 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 to the unlocking button 240. The user presses the unlocking button 240 to release the limiting function of the telescopic buckle 230 on the ECG monitoring device 100, making it convenient to detach the ECG monitoring device 100 from the base 210.

[0154] In some embodiments, the microprocessor further includes a label recognition module, and the label recognition module is used to recognize the anti-counterfeiting label of the signal collector 200 .

[0155] It can be understood that the signal collector 200 can be divided into a single-use signal collector 200 and a reusable signal collector 200 according to the usage; when used once, the signal collector 200 can be authenticated. 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 reuse, the authentication method is described below using the patch-type ECG sensor as an example.

[0156] In an exemplary embodiment, the label identification module is also used to identify the anti-counterfeiting label in the patch-type ECG sensor, obtain the identification information, production information and first ciphertext information in the anti-counterfeiting label, and upload the identification information, production information and first ciphertext information to the central station; the central station is used to perform authenticity identification on the patch-type ECG sensor based on the identification information, production information and first ciphertext information.

[0157] The first ciphertext 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] Among them, the production information may include the batch, manufacturing date, model and encryption information of the patch-type ECG sensor.

[0160] Among them, the anti-counterfeiting label is an NFC label.

[0161] In the specific implementation, Figure 7 As shown, it is a schematic diagram of the principle of anti-counterfeiting identification of a patch-type ECG sensor according to an embodiment. In the manufacturing process of the patch-type ECG sensor, the manufacturer burns the production information into the anti-counterfeiting label and uploads the corresponding information to the central station. The ECG monitoring device 100 is configured with a tag identification module including an NFC antenna, which has the function of an NFC card reader. When in use, it can identify the anti-counterfeiting label built into the patch-type ECG sensor and obtain the unique identification UID, production information and first ciphertext information of the patch-type ECG sensor in the anti-counterfeiting label. After that, the obtained identification information, production information and first ciphertext information are uploaded to the central station. The central station decrypts the first ciphertext information to obtain the identification information and production information, and compares the decrypted identification information and production information with the identification information and production information obtained from the anti-counterfeiting label to realize authenticity identification. Specifically, if one of the identification information and production information is inconsistent, it means that the patch-type ECG sensor is counterfeit; otherwise, it is true.

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

[0163] In another exemplary embodiment, the label recognition module is further used to recognize the anti-counterfeiting label in the patch-type ECG sensor, obtain the identification information, production information and second ciphertext information in the anti-counterfeiting label, and upload the identification information, production information and second ciphertext information to the central station;

[0164] The central station is also used to obtain the reserved information not included in the anti-counterfeiting label from the server in a networked state; and to identify the authenticity of the patch-type ECG sensor based on the identification information, production information, second ciphertext information and reserved information;

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

[0166] In the specific implementation, Figure 7 As shown, when the production information is burned into the anti-counterfeiting label, the reserved information of a field can be selected and not burned into the label, but only stored in the server. When encrypting, the second ciphertext information is obtained by encrypting the identification information, production information and reserved information together. Therefore, after the central station decrypts the second ciphertext information to obtain the identification information, production information and reserved information, it can compare the decrypted identification information and production information with the identification information and production information obtained from the anti-counterfeiting label, while the reserved information needs to be obtained from the server through networking, and then the decrypted reserved information is compared with the reserved information obtained from the server, and the authenticity identification result of the patch-type ECG sensor is determined based on the comparison results of the identification information, production information and reserved information. If one of the identification information, production information and reserved information is inconsistent, it means that the patch-type ECG sensor is counterfeit; otherwise, it is true.

[0167] In some embodiments, the encrypted information can also be traceable and anti-counterfeiting through blockchain technology and regular cancellation. For example, after each use of a patch-type ECG sensor, the relevant information of the patch-type ECG sensor is deleted from the server, and anti-counterfeiting is performed through cancellation.

[0168] In this embodiment, when burning the production information into the anti-counterfeiting label, the reserved information of a field is selected and not burned into the label, but only stored in the server. During encryption, the second ciphertext information is obtained by encrypting the identification information, production information and reserved information together. When performing authenticity identification, it is necessary to connect to the Internet to obtain the reserved information in the server to complete the identification, thereby further improving the anti-counterfeiting effect.

[0169] refer to Figure 8 , is a schematic diagram of the internal structure of an electrocardiogram monitoring device 100 shown in an embodiment. Figure 8As shown, the ECG monitoring device 100 includes a front-end protection module, a signal conditioning module, a pacing signal processing module, etc. in addition to a tag identification module (NFC reader), a signal switching circuit, and a signal acquisition circuit. The switching of ECG / respiration signals is realized through the various 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 signal; the signal conditioning module uses a resistor-capacitor unit to form a signal low-pass filter to filter out the high-frequency interference components in the signal; the signal acquisition circuit has an 8-channel ECG signal input channel ADC (Analog-to-Digital Converter) module with built-in channel selection, which supports up to 8-channel signal acquisition. The following is a detailed description of each module.

[0170] (1) A 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 ECG monitoring device 100, including an anti-defibrillation chip and a protection circuit, and the anti-defibrillation chip and the protection circuit are combined to limit 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 two parts: the first part is located in the signal collector 200, and has a built-in anti-defibrillation resistor, which dissipates most of the energy of defibrillation in the form of heat; the second part is located in the ECG monitoring device 100, including an anti-defibrillation chip and a secondary protection circuit, and the two are combined to limit 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 number of repetitions. Its function is mainly used to quickly clamp the high-voltage pulse of 5000V for defibrillation to about 10V (ms level), and the other voltages and energy are consumed by the anti-defibrillation resistor of the first part; the secondary protection circuit further limits the current and undervoltage of the 10V signal to the acceptable range of the subsequent circuit according to the IO input range of each chip inside the recorder, and protects the normal operation of the subsequent circuit, which can be realized by ordinary resistors or anti-pulse resistors. In some embodiments, the anti-defibrillation chip can use a lightning arrester or an integrated chip. Considering the size requirements, an integrated chip can be used. It should be noted that the defibrillation function can only be realized on a reusable ECG lead wire. In this embodiment, in conjunction with the anti-defibrillation resistor of the ECG signal collector 200, the ECG monitoring device 100 can realize the anti-defibrillation function, protect the normal use of the ECG monitoring device 100, and do not affect the defibrillation energy.

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

[0172] In some embodiments, the device further includes a breathing detection module for generating an excitation signal, applying the excitation signal to the collected object, and obtaining the breathing information of the collected object according to the breathing feedback signal of the collected object. In a specific implementation, the impedance method can be used for respiratory monitoring. By giving a certain excitation signal to the human body, the excitation signal is combined with the change of the chest volume during breathing to generate a respiratory feedback electrical signal. By collecting the feedback information, the respiratory rate and respiratory waveform of the human body are obtained, and the heart rate and waveform can be displayed through the host and the remote central station software. The impedance method is used to detect respiratory support I-lead breathing (LA-RA) and II-lead breathing (LL-RA). Specifically, a high-frequency excitation square wave signal is first generated, and a high-frequency square wave modulation signal, such as 32kHz, is generated through an internal circuit. The DC waveform is converted into an AC waveform through R1 and C1, and the current acting on the human body is reduced through the current limiting of R1; and in order to reduce the number of interfaces, the respiratory channel excitation signal and the ECG signal / pacing signal share the same physical channel (such as the LA-RA channel); then, the respiratory feedback signal is modulated and demodulated. Because when the human body breathes, the volume of the chest cavity will regularly increase and decrease, corresponding to the breathing action of the human body. When the excitation signal acts on the human body, the regular volume change of the chest cavity is manifested as a human body base resistance R3 + regularly changing resistance δR. The regular voltage and current on δR reflect the breathing changes of the human body. After being conditioned by the anti-defibrillation resistor R2 and the 1-order HPF filter (which plays the role of AC coupling and biasing to the intermediate power supply), it enters the internal circuit for demodulation processing, and finally obtains the real-time breathing waveform and breathing rate of the human body.

[0173] In some embodiments, the device further includes a motion detection module for detecting the motion state of the collected object, for example, the motion state may include four states: rest, sleep, exercise, and fall. In a specific implementation, the ECG monitoring device 100 may be equipped with a 6-axis motion sensor, including a 3-axis acceleration + a 3-week gyroscope, to monitor the motion state of the human body.

[0174] like Fig. 9 As shown, the ECG monitoring device 100 is also provided with an elastic touch area 104 and a charging interface 105. The elastic touch area 104 is used to receive user pressure to realize the event recording function. The charging interface 105 can support multiple charging methods and supports flexible charging during wearing. There is no need to classify the ECG monitoring device 100 and the signal collector 200, and ultra-long battery life of dynamic ECG acquisition can be achieved.

[0175] In some embodiments, the charging methods of the ECG monitoring device 100 include the following:

[0176] (1) Charging is performed through the customized USB Type-C interface using an adapter and a customized USB Type-C data cable through the charging interface 105 .

[0177] (2) After the power of the detachable battery assembly of the electrocardiogram monitoring device 100 is exhausted, the detachable battery assembly is installed in the centralized charger slot for charging.

[0178] (3) Install the ECG monitoring device 100 as a whole into the centralized charger slot. The device can be charged through the bottom SMD ECG sensor interface. The schematic diagram of the centralized charger is shown in FIG. Fig.10 As shown, it includes a plurality of charger slots 90 , and the charging slots 90 are adapted to the shape of the electrocardiogram monitoring device 100 .

[0179] In some embodiments, the patch ECG sensor interface can be designed to be pluggable to support multiple models of single-use and reusable patch ECG sensors and ECG 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 ECG lead wires and patch ECG sensors, and have the ability of wireless model identification and information management.

[0180] In some embodiments, the present application also provides an ECG monitoring system, including the ECG monitoring device 100 and the signal collector 200 provided in any of the above embodiments, to achieve long-range collection and monitoring of ECG signals.

[0181] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0182] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Fig.11As shown. 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 operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a physiological signal acquisition method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse, etc.

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

[0184] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0185] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0186] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[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 used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must 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, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this 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 memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access 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 and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0189] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0190] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A signal acquisition method, characterized in that: The method is applied to an electrocardiogram monitoring device (100), wherein the electrocardiogram monitoring device (100) is detachably mounted on a base (210) of a signal collector (200) to receive and store physiological signals collected by the signal collector (200), and the method comprises: Performing an in-situ detection on the base (210) to detect whether the signal collector (200) is electrically connected to the electrocardiogram monitoring device (100); When detecting that the signal collector (200) is electrically connected to the electrocardiogram monitoring device (100), identifying the type of the signal collector (200); Receiving a signal acquisition instruction that is compatible with the type of the signal collector (200); 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.

2. The signal acquisition method according to claim 1, characterized in that: The electrocardiogram monitoring device (100) is configured with a signal switching circuit and a signal acquisition circuit, the signal switching circuit comprising a first analog switch, a second analog switch, a third analog switch and a fourth analog switch, and the signal acquisition circuit comprising a signal acquisition channel; The method further comprises: 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 instruction; The selected signal acquisition channel is controlled to input the collected at least one physiological signal into the signal acquisition circuit.

3. The signal acquisition method according to claim 2, characterized in that: Identifying that the type of the signal collector (200) is a three-electrode lead; the three-electrode lead comprises a left upper limb lead, a right upper limb lead and a left leg limb lead, wherein two limb leads are selected from the left upper limb lead, the right upper limb lead and the left leg limb lead for collecting limb lead electrocardiographic signals, and the other limb lead is used as an output channel; The method further comprises at least one of the following steps: Generate a breathing excitation signal according to the signal acquisition instruction, control and switch the second analog switch to output the breathing excitation signal to the human body, and monitor the impedance change of the human body to generate a breathing feedback signal; Controlling switching of the first analog switch and the second analog switch to select a respiratory signal acquisition channel among signal acquisition channels, and inputting the respiratory feedback signal into the signal acquisition circuit through the selected respiratory signal acquisition channel; Controlling the switching of the third analog switch to select an ECG signal acquisition channel among the two signal acquisition channels corresponding to the limb leads, and inputting the limb lead ECG signals into the signal acquisition circuit through the selected ECG signal acquisition channel; The fourth analog switch is controlled to switch to select another limb lead as an output channel, and the right leg driving signal generated by the control is applied to the human body through the output channel to reduce the common mode interference generated by the human body.

4. The signal acquisition method according to claim 2, characterized in that: The type of the identification signal collector (200) is four-electrode leads; the four-electrode leads include 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 collect limb lead electrocardiographic signals; and the method further includes at least one of the following steps: Generate a breathing excitation signal according to the signal acquisition instruction, control and switch the second analog switch to output the breathing excitation signal to the human body, and monitor the impedance change of the human body to generate a breathing feedback signal; Controlling switching of the first analog switch and the second analog switch to select a respiratory signal acquisition channel among signal acquisition channels, and inputting the respiratory feedback signal into the signal acquisition circuit through the selected respiratory signal acquisition channel; Controlling the switching of the third analog switch according to the signal acquisition instruction to select an ECG signal acquisition channel in the signal acquisition channels corresponding to any two limb leads among the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel; Controlling the switching of the fourth analog switch to select an ECG signal acquisition channel among the signal acquisition channels corresponding to another limb lead among the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputting the limb lead ECG signal into 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, and the right leg driving signal is applied to the human body through the output channel to reduce the common mode interference generated by the human body.

5. The signal acquisition method according to claim 2, characterized in that: Identify that the type of the signal collector (200) is a five-electrode lead, wherein the five-electrode lead 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 collect limb lead electrocardiographic signals; and the chest lead is used to collect chest lead electrocardiographic signals; and the method further includes at least one of the following steps: Generate a breathing excitation signal according to the signal acquisition instruction, control and switch the second analog switch to output the breathing excitation signal to the human body, and monitor the impedance change of the human body to generate a breathing feedback signal; Control switching the first analog switch and the second analog switch to select a respiratory signal acquisition channel in the signal acquisition channel, and input the respiratory feedback signal into the signal acquisition circuit through the selected respiratory signal acquisition channel to obtain a respiratory signal; Controlling the switching of the third analog switch according to the signal acquisition instruction to select an ECG signal acquisition channel in the signal acquisition channels corresponding to any two limb leads among the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel; Controlling and switching the fourth analog switch to select an ECG signal acquisition channel among the signal acquisition channels corresponding to another limb lead among the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel; Controlling the right leg limb lead as the output channel of the signal acquisition circuit, and applying the right leg driving signal to the human body through the output channel to reduce the common mode interference generated by the human body; The chest leads are controlled as the ECG signal acquisition channels of the signal acquisition circuit, and the chest lead ECG signals are input into the signal acquisition circuit.

6. The signal acquisition method according to claim 2, characterized in that: Identifying that the type of the signal collector (200) is a ten-electrode lead, the ten-electrode lead comprising 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 collect limb lead electrocardiographic signals, and the six chest leads are used to collect chest lead electrocardiographic signals; the method further comprises at least one of the following steps: Controlling the switching of the first analog switch to select an ECG signal acquisition channel in the signal acquisition channels corresponding to one of the six chest leads according to the signal acquisition instruction, and inputting the chest lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel; Controlling the switching of the third analog switch according to the signal acquisition instruction to select an ECG signal acquisition channel in the signal acquisition channels corresponding to any two limb leads among the left upper limb lead, the right upper limb lead, and the left leg limb lead, and inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel; Controlling the switching of the fourth analog switch according to the signal acquisition instruction to select an 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 inputting the limb lead ECG signal into the signal acquisition circuit through the selected ECG signal acquisition channel; Controlling the right leg limb lead as the output channel of the signal acquisition circuit, and applying the right leg driving signal to the human body through the output channel to reduce the common mode interference generated by the human body; The chest lead electrocardiogram signals collected by the remaining five chest leads of the six chest leads are received.

7. The signal acquisition method according to any one of claims 1 to 6, characterized in that: The base (210) is provided with an NFC tag, and the electrocardiogram monitoring device (100) is provided with an NFC data collector; The types of the identification signal collector (200) include: Reading the information stored in the NFC tag by the NFC data collector; The type of the signal collector (200) is identified by means of information read from the NFC tag.

8. An electrocardiogram monitoring device, characterized in that: The electrocardiogram monitoring device (100) is used to be detachably mounted on a base (210) of a signal collector (200), the electrocardiogram monitoring device (100) comprising a first shell (11) and a second shell (12) which are separately connected, the first shell (11) and the second shell (12) enclose a cavity, a circuit board (20) is detachably mounted on the first shell (11), the circuit board (20) is provided with a signal collection circuit and a control circuit, the control circuit comprises a microprocessor, and the microprocessor comprises: A monitoring unit, used to perform an in-situ detection on the base (210) to detect whether the signal collector (200) is conductively connected to the electrocardiogram monitoring device (100); A type identification unit, used to identify the type of the signal collector (20) when detecting that the signal collector (200) is electrically connected to the electrocardiogram monitoring device (100); An instruction receiving unit, used for receiving a signal collection instruction adapted to the type of the signal collector (200); A processing unit is used for implementing the signal acquisition method according to any one of claims 1 to 7 in response to the signal acquisition instruction and according to the identified type of the signal collector (200) and the signal acquisition instruction.

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

10. An electrocardiogram monitoring system, characterized in that: It comprises the electrocardiogram monitoring device (100) and the signal collector (200) as claimed in claim 8 or 9.

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