Multichannel muscle parameter acquisition device and system based on serial bus

Abstract

The multichannel muscle parameter acquisition device comprises a main controller, a plurality of sensor assemblies, a power supply assembly and a transmission module, the output end of the power supply assembly is electrically connected with the power supply end of the main controller, and the data end of the main controller is connected with the data end of each sensor assembly through an I2C bus. The data end of the main controller is connected with the data end of the transmission module, each sensor assembly is configured on the body of a person to be collected, and the transmission module is used for being in communication connection with an external remote control terminal. According to the device, the muscle parameter sensing modules of all the parts of the body can be connected only through four wires, transmission of a power source and data is achieved, the number of connecting wires is small, and disorder is avoided.

Description

Technical Field

[0001] This utility model relates to the field of muscle signal acquisition technology, specifically to a multi-channel muscle parameter acquisition device and system based on a serial bus. Background Technology

[0002] Currently, in fields such as exercise effect assessment, health monitoring, and rehabilitation therapy, it is sometimes necessary to simultaneously collect physiological signals from multiple muscles in the body. Examples include collecting electromyographic signals, muscle blood oxygen levels, and muscle sound signals. One existing method for multi-channel muscle signal acquisition systems is to use a parallel structure, sending signals from each sensor to the main controller for time-sharing acquisition via a multiplexer. This method requires signal cables connecting each sensor to the main controller and is generally suitable for short-range multi-channel measurements. If the sensors are far apart, the cables become very long, and the transmitted signals are susceptible to interference. If a large number of sensors are connected, the number of cables also increases, making the entire system appear cluttered. Another existing method for multi-channel muscle signal acquisition systems is to use a distributed structure, where each sensor module wirelessly transmits the collected data to the main controller. This method eliminates the need for cables between modules, allowing the sensor modules to be distributed throughout the body at considerable distances. However, each sensor module requires a battery and wireless transmission device, resulting in a larger overall system size, greater weight, and higher overall cost.

[0003] In simple terms, existing methods using a parallel multi-switch structure require signal lines to connect each sensor and the main control unit, generally suitable for short-range multi-channel measurements. If the sensors are far apart, the wiring becomes very long, and the transmitted signals are susceptible to interference. If a large number of sensors are connected, the number of wiring also increases, making the entire system appear cluttered. Existing distributed structures require each sensor module to be equipped with a battery and wireless transmission devices, resulting in a larger overall system size, greater weight, and higher total cost.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] This invention provides a multi-channel muscle parameter acquisition device and system based on a serial bus, which can at least partially improve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-channel muscle parameter acquisition device based on a serial bus includes: a main controller, multiple sensor components, a power supply component, and a transmission module. The output terminal of the power supply component is electrically connected to the power supply terminal of the main controller, and the data terminal of the main controller is connected via I / O.2 The C-bus is connected to the data terminal of each of the sensor components, the data terminal of the main controller is connected to the data terminal of the transmission module, each of the sensor components is configured on the body of the person to be sampled, and the transmission module is used to communicate with an external remote control terminal.

[0008] Preferably, the power supply assembly includes a battery and a power circuit, wherein the output terminal of the battery is electrically connected to the input terminal of the power circuit, and the output terminal of the power circuit is electrically connected to the power supply terminal of the main controller.

[0009] Preferably, the power supply circuit adopts a DC-DC operating mode.

[0010] Preferably, the transmission module is a wired transmission module or a wireless transmission module.

[0011] Preferably, the main controller has a built-in I / O circuit. 2 The C communication module connects the VCC and GND lines of the main controller to the VCC and GND lines of the sensor assembly, respectively. The data line SDA of the main controller is connected to the data line SDA of the sensor assembly, and the clock line SCL of the main controller is connected to the clock line SCL of the sensor assembly.

[0012] Preferably, it further includes a first pull-up resistor, one end of which is connected to the VCC line of the main controller, and the other end of which is connected to the data line SDA of the main controller.

[0013] Preferably, it further includes a second pull-up resistor, one end of which is connected to the VCC line of the main controller, and the other end of which is connected to the clock line SCL of the main controller.

[0014] Preferably, the sensor assembly includes a microcontroller, a sensor, and a measurement circuit, wherein the output terminal of the sensor and the output terminal of the measurement circuit are electrically connected to the input terminal of the microcontroller, and the microcontroller has built-in I / O pins. 2 The microcontroller communicates via a C-channel module. 2 The C communication module is connected to the main controller.

[0015] This utility model also provides a multi-channel muscle parameter acquisition system based on a serial bus, which includes a remote control terminal and a multi-channel muscle parameter acquisition device based on a serial bus as described in any of the above, wherein the transmission module is communicatively connected to the remote control terminal for data interaction.

[0016] In summary, the multi-channel muscle parameter acquisition device based on a serial bus can connect muscle parameter sensing modules in different parts of the body using only four wires: a power wire and a data transmission wire. Each sensing module can be one or more, depending on actual needs, and these modules can be distributed throughout the body, even at considerable distances, without resulting in a cluttered or messy wiring system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a multi-channel muscle parameter acquisition device based on a serial bus, provided in the first aspect of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a multi-channel muscle parameter acquisition device based on a serial bus, provided in the second aspect of this utility model;

[0019] Figure 3 This is a schematic diagram of the sensor assembly of a multi-channel muscle parameter acquisition device based on a serial bus, provided in an embodiment of this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0022] Please see Figures 1 to 3 This utility model discloses a multi-channel muscle parameter acquisition device based on a serial bus, comprising: a main controller, multiple sensor components, a power supply component, and a transmission module. The output terminal of the power supply component is electrically connected to the power supply terminal of the main controller, and the data terminal of the main controller is connected via I / O. 2The C-bus is connected to the data terminal of each of the sensor components, the data terminal of the main controller is connected to the data terminal of the transmission module, each of the sensor components is configured on the body of the person to be sampled, and the transmission module is used to communicate with an external remote control terminal.

[0023] Preferably, the power supply assembly includes a battery and a power circuit, wherein the output terminal of the battery is electrically connected to the input terminal of the power circuit, and the output terminal of the power circuit is electrically connected to the power supply terminal of the main controller.

[0024] Preferably, the power supply circuit adopts a DC-DC operating mode.

[0025] Preferably, the transmission module is a wired transmission module or a wireless transmission module.

[0026] Preferably, the main controller has a built-in I / O circuit. 2 The C communication module connects the VCC and GND lines of the main controller to the VCC and GND lines of the sensor assembly, respectively. The data line SDA of the main controller is connected to the data line SDA of the sensor assembly, and the clock line SCL of the main controller is connected to the clock line SCL of the sensor assembly.

[0027] Preferably, it further includes a first pull-up resistor, one end of which is connected to the VCC line of the main controller, and the other end of which is connected to the data line SDA of the main controller.

[0028] Preferably, it further includes a second pull-up resistor, one end of which is connected to the VCC line of the main controller, and the other end of which is connected to the clock line SCL of the main controller.

[0029] Preferably, the sensor assembly includes a microcontroller, a sensor, and a measurement circuit, wherein the output terminal of the sensor and the output terminal of the measurement circuit are electrically connected to the input terminal of the microcontroller, and the microcontroller has built-in I / O pins. 2 The microcontroller communicates via a C-channel module. 2 The C communication module is connected to the main controller.

[0030] Specifically, in this embodiment, the multi-channel muscle parameter acquisition device based on a serial bus uses a main control terminal and multiple sensing and measurement modules connected via I... 2 The connection is via a C-bus. The main control unit consists of a battery, power supply circuit, main controller, and a wireless or wired transmission module for communication with the host computer. The main controller has an I-type I-type connector. 2 C-bus communication module. In addition to muscle physiological parameter sensing elements and related circuits, each sensing module also includes I / O bus communication modules.2 The microcontroller features C-bus communication. The master controller connects to each sensor module via four wires: power, ground, serial data (SDA), and serial clock (SCL). The power and ground wires provide power to each module. SDA and SCL handle communication between the master controller and the modules; the master controller sends control commands to each sensor module via SDA and SCL, and simultaneously receives response signals and measurement data from each sensor module.

[0031] In this embodiment, with Figure 1 Taking the hardware structure block diagram as an example, the device includes a main control module, sensor module A, sensor module B, sensor module C, and I... 2 Pull-up resistor on SDA line of C bus, I 2 Pull-up resistors on the SCL line of the C bus. A detailed hardware block diagram of the main control module is shown below. Figure 2 As shown, it includes: a battery, a power supply circuit, a microcontroller, and a wired or wireless transmission module. A detailed hardware block diagram of each sensing module is shown below. Figure 3 As shown, it includes a microcontroller, various sensors, and measurement circuits.

[0032] The main control module is connected to each sensor module via four wires: VCC, GND, SDA, and SCL. VCC and GND provide power to each sensor module, while SDA and SCL provide I / O power. 2 The data and clock lines of the C bus require pull-up resistors connected to VCC for operation. Each sensor module can consist of one or more, depending on actual needs.

[0033] Since the battery's output voltage decreases as the battery power is consumed, a power supply circuit is needed to provide a stable voltage for the entire device. This power supply circuit typically uses a DC-DC converter and can be a boost, buck, buck-boost, or other circuit structure. The microcontroller connects via I / O... 2 The C-bus controls and communicates data with other sensing modules. The final measurement data is then transmitted to a host computer (computer, mobile phone, tablet, or other control device) via a wired or wireless transmission module.

[0034] Each sensing module includes its own microcontroller, which has I / O pins. 2 The C communication module connects the sensor and its measurement circuitry, used to measure various muscle signal parameters. The sensor and measurement circuitry can consist of discrete components, integrated circuits, or a combination of both. There can be one or more sensors and measurement circuitry. To add a new sensor module, simply connect the new module to the I... 2 On the C bus, the complexity of the entire device will not be increased.

[0035] When the device is working, the main control module and each sensor module first undergo software initialization settings. Each sensor module has been pre-assigned a dedicated I / O address in the program. 2 C communication address identification information. Then, the main control module sends I / O signals to each sensor module according to the different address information. 2 The C-bus sends measurement commands, and after each sensor module completes its measurement operation, the system receives the measurement data sent back by each module. Once the master control unit has collected data from all sensor modules, it transmits all data to the host computer via a wired or wireless transmission module for further processing. This completes one measurement cycle, and the next measurement cycle begins.

[0036] In summary, compared to existing methods using a parallel structure with multiple switches, this device only requires four wires to connect the muscle parameter sensing modules of different parts of the body, achieving power and data transmission with fewer wires, thus avoiding clutter. Compared to existing methods using a distributed structure, this device has only one power supply and a transmission module to the host computer, resulting in a simpler system structure and lower overall cost.

[0037] This utility model also discloses a multi-channel muscle parameter acquisition system based on a serial bus, which includes a remote control terminal and a multi-channel muscle parameter acquisition device based on a serial bus as described in any one of the above, wherein the transmission module is communicatively connected to the remote control terminal for data interaction.

[0038] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

Claims

1. A multi-channel muscle parameter acquisition device based on a serial bus, characterized in that, include: The system includes a main controller, multiple sensor components, a power supply component, and a transmission module. The output of the power supply component is electrically connected to the power supply terminal of the main controller, and the data terminal of the main controller is connected via I / O. 2 The C-bus is connected to the data terminal of each of the sensor components, the data terminal of the main controller is connected to the data terminal of the transmission module, each of the sensor components is configured on the body of the person to be sampled, and the transmission module is used to communicate with an external remote control terminal.

2. The multi-channel muscle parameter acquisition device based on a serial bus according to claim 1, characterized in that, The power supply assembly includes a battery and a power circuit, wherein the output terminal of the battery is electrically connected to the input terminal of the power circuit, and the output terminal of the power circuit is electrically connected to the power supply terminal of the main controller.

3. The multi-channel muscle parameter acquisition device based on a serial bus according to claim 2, characterized in that, The power supply circuit is a DC-DC power supply circuit.

4. The multi-channel muscle parameter acquisition device based on a serial bus according to claim 1, characterized in that, The transmission module can be a wired transmission module or a wireless transmission module.

5. A multi-channel muscle parameter acquisition device based on a serial bus according to claim 1, characterized in that, The main controller has built-in I 2 The C communication module connects the VCC and GND lines of the main controller to the VCC and GND lines of the sensor assembly, respectively. The data line SDA of the main controller is connected to the data line SDA of the sensor assembly, and the clock line SCL of the main controller is connected to the clock line SCL of the sensor assembly.

6. The multi-channel muscle parameter acquisition device based on a serial bus according to claim 5, characterized in that, It also includes a first pull-up resistor, one end of which is connected to the VCC line of the main controller, and the other end of which is connected to the data line SDA of the main controller.

7. A multi-channel muscle parameter acquisition device based on a serial bus according to claim 5, characterized in that, It also includes a second pull-up resistor, one end of which is connected to the VCC line of the main controller, and the other end of which is connected to the clock line SCL of the main controller.

8. A multi-channel muscle parameter acquisition device based on a serial bus according to claim 1, characterized in that, The sensor assembly includes a microcontroller, a sensor, and a measurement circuit. The output terminals of the sensor and the measurement circuit are electrically connected to the input terminal of the microcontroller. The microcontroller has a built-in I / O circuit. 2 The microcontroller communicates via a C-channel module. 2 The C communication module is connected to the main controller.

9. A multi-channel muscle parameter acquisition system based on a serial bus, characterized in that, It includes a remote control terminal and a multi-channel muscle parameter acquisition device based on a serial bus as described in any one of claims 1 to 8, wherein the transmission module is communicatively connected to the remote control terminal for data interaction.

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