Exercise training detection equipment

Abstract

The utility model provides an exercise training detection device. The exercise training detection equipment comprises a sweat detection module, the sweat detection module comprises a plurality of working electrodes, signals of the working electrodes are converted into differential signals through multiple signal conversion circuits, one signal conversion circuit comprises an operational amplifier U16A, the inverted input end of the operational amplifier U16A is connected with a first working electrode, and the inverted input end of the operational amplifier U16A is connected with a second working electrode. The in-phase input end of the operational amplifier U16A is connected with a first bias voltage, the output end of the operational amplifier U16A is in feedback connection with the inverted input end of the operational amplifier U16A through a resistor R1, and the output end of the operational amplifier U16A is a first differential signal corresponding to the first working electrode; and the inverted input end of the operational amplifier U16A is a second differential signal corresponding to the first working electrode. According to the invention, the detection precision of the existing exercise training detection equipment can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of detection equipment, and in particular to a sports training detection equipment. Background Art

[0002] During the athlete training process, sports training detection equipment can provide accurate and immediate data feedback, which can help athletes, coaches and scientific researchers gain an in-depth understanding of the athletes' physical condition and training effects, thereby optimizing training plans and improving athletic performance.

[0003] The sweat detection module can track the amount of dehydration, electrolyte concentration changes and other data of athletes during training in real time. Applying the sweat detection module to sports training detection equipment can provide athletes with more comprehensive, accurate and immediate physical index data. The sweat detection module can use electrochemical principles to measure the ion concentration in sweat. Taking uric acid detection as an example, when uric acid reacts with electrodes, current changes will occur. By measuring this change, the uric acid content can be determined. Since the current generated when uric acid reacts with electrodes is relatively weak, the current measurement accuracy is easily affected by interference signals, resulting in low detection accuracy of the sweat detection module. Utility Model Content

[0004] The disclosed embodiment provides a sports training detection device to solve the problem of low detection accuracy of existing sports training detection devices.

[0005] The embodiment of the present disclosure provides a sports training detection device, including a sweat detection module, wherein the sweat detection module includes a plurality of working electrodes, and the signals of the plurality of working electrodes are respectively converted into differential signals by a multi-channel signal conversion circuit.

[0006] One of the signal conversion circuits includes an operational amplifier U16A, an inverting input terminal of the operational amplifier U16A is connected to the first working electrode, a non-inverting input terminal of the operational amplifier U16A is connected to the first bias voltage, and an output terminal of the operational amplifier U16A is feedback-connected to the inverting input terminal of the operational amplifier U16A through a resistor R1.

[0007] The output end of the operational amplifier U16A is a first differential signal corresponding to the first working electrode, and the inverting input end of the operational amplifier U16A is a second differential signal corresponding to the first working electrode.

[0008] In an exemplary embodiment of the present disclosure, the sports training detection device further includes an electrode current detection circuit, wherein the electrode current detection circuit includes a first multi-way switch, a multi-way resistor, a second multi-way switch, a first operational amplifier unit, a second operational amplifier unit and a subtraction circuit.

[0009] The input end of the first multi-way switch is connected to the differential signals corresponding to the plurality of working electrodes, the first differential output end of the first multi-way switch is connected to the in-phase input end of the second operational amplifier unit, and the second differential output end of the first multi-way switch is connected to the in-phase input end of the first operational amplifier unit.

[0010] The input end of the second multi-way switch is connected to the multi-way resistor, the first differential output end of the second multi-way switch is connected to the inverting input end of the second operational amplifier unit, and the second differential output end of the second multi-way switch is connected to the inverting input end of the first operational amplifier unit.

[0011] The output end of the second operational amplifier unit is connected to the first input end of the subtraction circuit, and the output end of the first operational amplifier unit is connected to the second input end of the subtraction circuit.

[0012] The output end of the subtraction circuit is the output end of the electrode current detection circuit.

[0013] In an exemplary embodiment of the present disclosure, the detection electrode of the sweat detection module further includes a reference electrode and a counter electrode.

[0014] The reference electrode is connected to the inverting input terminal of the operational amplifier U1B, the non-inverting input terminal of the operational amplifier U1B is connected to the reference voltage, and the output terminal of the operational amplifier U1B is feedback-connected to the inverting input terminal of the operational amplifier U1B through the resistor R3.

[0015] The inverting input terminal of the operational amplifier U1B is connected to the pair of electrodes.

[0016] In an exemplary embodiment of the present disclosure, a voltage follower is provided between the reference electrode and the inverting input terminal of the operational amplifier U1B.

[0017] In an exemplary embodiment of the present disclosure, the sports training detection device further includes:

[0018] Heart rate detection module, used to detect heart rate data;

[0019] Blood pressure detection module, used to detect blood pressure data;

[0020] A controller, wherein the sweat detection module, the heart rate detection module and the blood pressure detection module are all connected to the controller.

[0021] In an exemplary embodiment of the present disclosure, the sports training detection device further includes:

[0022] Bluetooth communication module is used to realize communication between the controller and the monitoring terminal.

[0023] In an exemplary embodiment of the present disclosure, the sports training detection device further includes:

[0024] WIFI communication module, used to realize communication between the controller and multiple monitoring terminals.

[0025] In an exemplary embodiment of the present disclosure, the sports training detection device further includes:

[0026] Battery power monitoring module, used to monitor the battery power.

[0027] The working principle and beneficial effects of the sports training detection device provided by the embodiment of the present disclosure are as follows:

[0028] In this embodiment, multiple working electrodes are used to detect the contents of multiple components in sweat, such as uric acid, dopamine, glucose, lactic acid, etc. By designing a signal conversion circuit, the signals of the multiple working electrodes are converted into differential signals. The differential signal has a stronger anti-interference ability during the measurement process, which is beneficial to improving the detection accuracy of the current signal, thereby improving the detection accuracy of the entire sports training detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 is a schematic diagram of a signal conversion circuit provided by an embodiment of the present disclosure;

[0031] Figure 2 is a schematic diagram of an electrode current detection circuit provided by an embodiment of the present disclosure;

[0032] Figure 3 It is a schematic diagram of a constant potential circuit provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] In order to enable people in the technical field to better understand the present solution, the technical solution in the embodiment of the present solution will be clearly described below in conjunction with the drawings in the embodiment of the present solution. Obviously, the described embodiment is an embodiment of a part of the present solution, not all of the embodiments. Based on the embodiments in the present solution, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present solution.

[0034] The term "including" and any other variations in the specification and claims of this solution and the above drawings mean "including but not limited to", and is intended to cover non-exclusive inclusions and is not limited to the examples listed in the text. In addition, the terms "first" and "second" are used to distinguish different objects, not to describe a specific order.

[0035] The following is a detailed description of the implementation of the present disclosure in conjunction with the specific drawings:

[0036] The sports training detection device comprises a sweat detection module, wherein the sweat detection module comprises a plurality of working electrodes, and the signals of the plurality of working electrodes are respectively converted into differential signals by a multi-channel signal conversion circuit.

[0037] Reference Figure 1 , wherein one signal conversion circuit includes an operational amplifier U16A, an inverting input terminal of the operational amplifier U16A is connected to the first working electrode, a non-inverting input terminal of the operational amplifier U16A is connected to the first bias voltage, and an output terminal of the operational amplifier U16A is feedback-connected to the inverting input terminal of the operational amplifier U16A through a resistor R1,

[0038] The output terminal of the operational amplifier U16A is a first differential signal corresponding to the first working electrode, and the inverting input terminal of the operational amplifier U16A is a second differential signal corresponding to the first working electrode.

[0039] In this embodiment, multiple working electrodes are used to detect the contents of multiple components in sweat, such as uric acid, dopamine, glucose, lactic acid, etc. By designing a signal conversion circuit, the signals of the multiple working electrodes are converted into differential signals. The differential signal has a stronger anti-interference ability during the measurement process, which is beneficial to improving the detection accuracy of the current signal, thereby improving the detection accuracy of the entire sports training detection equipment.

[0040] Taking one of the signal conversion circuits as an example, the first working electrode WE1 is connected to the inverting input terminal of the operational amplifier U16A, and the first bias voltage VBIAS1 is connected to the non-inverting input terminal of the operational amplifier U16A. The operational amplifier U16A constitutes a subtraction circuit. The output voltage of the operational amplifier U16A is the difference between the first bias voltage and the voltage of the first working electrode WE1. The voltage signal serves as the first differential signal WE1_P corresponding to the first electrode WE1, and the signal WE1 at the inverting input terminal of the operational amplifier U16A serves as the second differential signal WE1_N corresponding to the first electrode WE1.

[0041] In an exemplary embodiment of the present disclosure, the sports training detection device further includes an electrode current detection circuit, referring to Figure 2 The electrode current detection circuit includes a first multi-way switch, a multi-way resistor, a second multi-way switch, a first operational amplifier unit, a second operational amplifier unit and a subtraction circuit.

[0042] The input end of the first multi-way switch is connected to the differential signals corresponding to the plurality of working electrodes, the first differential output end of the first multi-way switch is connected to the in-phase input end of the second operational amplifier unit, and the second differential output end of the first multi-way switch is connected to the in-phase input end of the first operational amplifier unit.

[0043] The input end of the second multi-way switch is connected to the multi-way resistor, the first differential output end of the second multi-way switch is connected to the inverting input end of the second operational amplifier unit, and the second differential output end of the second multi-way switch is connected to the inverting input end of the first operational amplifier unit.

[0044] The output end of the second operational amplifier unit is connected to the first input end of the subtraction circuit, and the output end of the first operational amplifier unit is connected to the second input end of the subtraction circuit.

[0045] The output end of the subtraction circuit is the output end of the electrode current detection circuit.

[0046] In this embodiment, the first multi-way switch U17 is used to select different working electrodes WE, and the multiple working electrodes WE are respectively used to detect substances such as uric acid, dopamine, glucose, and lactic acid in sweat; considering that the current levels of each working electrode WE are different, this embodiment is provided with a second multi-way switch U19 to select different resistors for different working electrodes WE. For example, when detecting the uric acid content, the working electrode WE1 and the resistor R20 are selected, the resistor R20 is used to calculate the amplification factors of the first operational amplifier unit U20B and the second operational amplifier unit U20A, the second operational amplifier unit U20A is used to amplify the first differential signal WE1_P corresponding to the working electrode WE1, the first operational amplifier unit U20B is used to amplify the second differential signal WE1_N corresponding to the working electrode WE1, the output signal of the second operational amplifier unit U20A and the output signal of the first operational amplifier unit U20B are respectively connected to the first input terminal and the second input terminal of the subtraction circuit U20C, the subtraction circuit U20C outputs the difference between the two signals, based on which the current of the working electrode WE1 is obtained, and then the uric acid content in the sweat is obtained according to the current of the working electrode WE1.

[0047] The first multi-way switch and the second multi-way switch can use currently common switch devices. In this embodiment, the first multi-way switch specifically uses RS2252XTSS16, and the second multi-way switch specifically uses RS2255.

[0048] Reference Figure 2 In an exemplary embodiment of the present disclosure, a third operational amplifier unit U20D may be connected to the output end of the subtraction circuit, and the third operational amplifier unit U20D constitutes a voltage follower to play a role in impedance matching.

[0049] Reference Figure 3 In an exemplary embodiment of the present disclosure, the detection electrode of the sweat detection module further includes a reference electrode and a counter electrode.

[0050] The reference electrode is connected to the inverting input terminal of the operational amplifier U1B, the non-inverting input terminal of the operational amplifier U1B is connected to the reference voltage, and the output terminal of the operational amplifier U1B is connected to the inverting input terminal of the operational amplifier U1B through the feedback of the resistor R3.

[0051] The inverting input terminal of the operational amplifier U1B is connected to the counter electrode.

[0052] In this embodiment, a three-electrode system is used to detect sweat. At the same time, an operational amplifier U1B is used to form a negative feedback circuit, which can ensure that the potential of the reference electrode RE changes synchronously with the potential of the working electrode WE, thereby ensuring that the potential between the working electrode WE and the reference electrode RE is constant, which is conducive to improving the detection accuracy. Its working principle is: when the potential of the working electrode WE increases, the current fed back from the electrode CE to the inverting input terminal of the operational amplifier U1B increases, and the voltage at the inverting input terminal of the operational amplifier U1B increases, thereby maintaining the potential between the working electrode WE and the reference electrode RE constant; conversely, when the potential of the working electrode WE decreases, the current fed back from the electrode CE to the inverting input terminal of the operational amplifier U1B decreases, and the voltage at the inverting input terminal of the operational amplifier U1B decreases, thereby maintaining the potential between the working electrode WE and the reference electrode RE constant.

[0053] This embodiment can achieve the goal of maintaining a constant potential between the working electrode WE and the reference electrode RE, which is beneficial to improving the detection accuracy of the three-electrode detection system for sweat.

[0054] Reference Figure 3 In an exemplary embodiment of the present disclosure, a voltage follower is provided between the reference electrode RE and the inverting input terminal of the operational amplifier U1B.

[0055] In this embodiment, the operational amplifier U1A forms a voltage follower, plays a role of impedance matching, and can achieve reliable transmission of the reference electrode RE voltage.

[0056] In an exemplary embodiment of the present disclosure, the sports training detection device further includes:

[0057] Heart rate detection module, used to detect heart rate data;

[0058] Blood pressure detection module, used to detect blood pressure data;

[0059] The controller, the sweat detection module, the heart rate detection module and the blood pressure detection module are all connected to the controller.

[0060] In this embodiment, the output ends of the sweat detection module, the heart rate detection module and the blood pressure detection module are all connected to the controller. The controller can integrate the detection data of each module to provide users with more comprehensive and accurate health monitoring and management services, helping users to better understand the training effect.

[0061] In an exemplary embodiment of the present disclosure, the sports training detection device further includes:

[0062] Bluetooth communication module is used to realize communication between the controller and the monitoring terminal.

[0063] In this embodiment, the controller can realize single-point communication with the monitoring terminal through Bluetooth communication, and send the acquired detection data to the monitoring terminal for user viewing. The monitoring terminal can be a mobile phone, a tablet, etc., which is not limited here.

[0064] In an exemplary embodiment of the present disclosure, the sports training detection device further includes:

[0065] WIFI communication module, used to realize communication between the controller and multiple monitoring terminals.

[0066] In this embodiment, the controller can achieve multi-point communication with multiple monitoring terminals through WIFI communication, and send the acquired detection data to multiple monitoring terminals to enable multiple people to view it at the same time.

[0067] In an exemplary embodiment of the present disclosure, the sports training detection device further includes:

[0068] Battery power monitoring module, used to monitor the battery power.

[0069] In this embodiment, the sports training detection device can be made into a wearable device (such as a watch or a bracelet) and worn on the user. The wearable device is usually powered by a battery. If the battery power is insufficient, it will affect the detection accuracy. Therefore, in this embodiment, a battery power monitoring module is set to monitor the battery power in real time. When the battery power is insufficient, the user is reminded to charge in time to ensure accurate detection of the sweat detection module, the heart rate detection module, and the blood pressure detection module.

[0070] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A sports training detection device, characterized in that: The sweat detection module includes a plurality of working electrodes, and the signals of the plurality of working electrodes are respectively converted into differential signals by a multi-channel signal conversion circuit. One of the signal conversion circuits includes an operational amplifier U16A, an inverting input terminal of the operational amplifier U16A is connected to the first working electrode, a non-inverting input terminal of the operational amplifier U16A is connected to the first bias voltage, and an output terminal of the operational amplifier U16A is feedback-connected to the inverting input terminal of the operational amplifier U16A through a resistor R1. The output end of the operational amplifier U16A is a first differential signal corresponding to the first working electrode, and the inverting input end of the operational amplifier U16A is a second differential signal corresponding to the first working electrode.

2. The sports training detection device according to claim 1, characterized in that: It also includes an electrode current detection circuit, which includes a first multi-way switch, a multi-way resistor, a second multi-way switch, a first operational amplifier unit, a second operational amplifier unit and a subtraction circuit. The input end of the first multi-way switch is connected to the differential signals corresponding to the plurality of working electrodes, the first differential output end of the first multi-way switch is connected to the in-phase input end of the second operational amplifier unit, and the second differential output end of the first multi-way switch is connected to the in-phase input end of the first operational amplifier unit. The input end of the second multi-way switch is connected to the multi-way resistor, the first differential output end of the second multi-way switch is connected to the inverting input end of the second operational amplifier unit, and the second differential output end of the second multi-way switch is connected to the inverting input end of the first operational amplifier unit. The output end of the second operational amplifier unit is connected to the first input end of the subtraction circuit, and the output end of the first operational amplifier unit is connected to the second input end of the subtraction circuit. The output end of the subtraction circuit is the output end of the electrode current detection circuit.

3. The sports training detection device according to claim 1, characterized in that: The detection electrodes of the sweat detection module also include a reference electrode and a counter electrode. The reference electrode is connected to the inverting input terminal of the operational amplifier U1B, the non-inverting input terminal of the operational amplifier U1B is connected to the reference voltage, and the output terminal of the operational amplifier U1B is feedback-connected to the inverting input terminal of the operational amplifier U1B through the resistor R3. The inverting input terminal of the operational amplifier U1B is connected to the pair of electrodes.

4. The sports training detection device according to claim 3, characterized in that: A voltage follower is provided between the reference electrode and the inverting input terminal of the operational amplifier U1B.

5. The sports training detection device according to claim 1, characterized in that: Also includes: Heart rate detection module, used to detect heart rate data; Blood pressure detection module, used to detect blood pressure data; A controller, wherein the sweat detection module, the heart rate detection module and the blood pressure detection module are all connected to the controller.

6. The sports training detection device according to claim 5, characterized in that: Also includes: Bluetooth communication module is used to realize communication between the controller and the monitoring terminal.

7. The sports training detection device according to claim 5, characterized in that: Also includes: WIFI communication module, used to realize communication between the controller and multiple monitoring terminals.

8. The sports training detection device according to claim 1, characterized in that: Also includes: Battery power monitoring module, used to monitor the battery power.

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