Search

CN-224220693-U - Intelligent Bluetooth abdomen building roller control circuit

CN224220693UCN 224220693 UCN224220693 UCN 224220693UCN-224220693-U

Abstract

The utility model discloses an intelligent Bluetooth exercise wheel control circuit which comprises a motion detection module, a data processing module, a display module and a power module, wherein the motion detection module is a high-precision Hall sensor and is used for detecting the motion track, the rotation times and the displacement distance of an exercise wheel in real time, the data processing module adopts a low-power consumption MCU (micro control unit) processor, the main frequency is not lower than 48MHz based on ArmCortex-M0 inner cores, at least 28 GPIO interfaces are configured, the display module is a low-power consumption LCD screen and is connected with the MCU processor through a driving chip, the MCU processor is integrated with a Bluetooth communication module and is used for wirelessly transmitting the motion data to external terminal equipment, a Cortex-M0 inner core MCU with the main frequency of 48MHz is used for acquiring signals at a high sampling rate of 200Hz through a 12-bit ADC (analog to digital) and combining a sliding window algorithm and a three-point positioning method, the motion data is calculated in real time, the mechanical vibration interference is eliminated, the real-time property and the accuracy of the data are ensured, meanwhile, the GPIO interface is clearly distributed, the circuit structure is clear, and hardware debugging and functions are convenient to expand the circuit structure.

Inventors

  • MAO SHANWEN

Assignees

  • 上海迈荣电子科技有限公司

Dates

Publication Date
20260512
Application Date
20250402

Claims (6)

  1. 1. An intelligent bluetooth exercise wheel control circuit, which is characterized by comprising: The device comprises a motion detection module, a data processing module, a display module and a power supply module; the motion detection module is a high-precision Hall sensor and is used for detecting the motion trail, the rotation times and the displacement distance of the abdomen building wheel in real time; The data processing module adopts a low-power consumption MCU processor, and configures at least 28 GPIO interfaces based on ArmCortex-M0 cores, wherein the main frequency is not lower than 48 MHz; The display module is a low-power-consumption LCD screen and is connected with the MCU processor through the driving chip; the MCU processor integrates the Bluetooth communication module and wirelessly transmits the motion data to the external terminal equipment.
  2. 2. The intelligent bluetooth exercise wheel control circuit of claim 1, wherein the high-precision hall sensor is a linear hall element, and the pulse signal is generated by the relative displacement between the magnet and the sensor; The MCU processor calculates the movement speed and displacement according to the pulse frequency.
  3. 3. The intelligent bluetooth exercise wheel control circuit of claim 1, wherein the MCU processor in standby mode has a current of less than 5 μa, dynamically adjusts the main frequency optimized power consumption during operation, and responds to the signal input of the hall sensor via the GPIO interrupt wakeup mechanism.
  4. 4. The intelligent bluetooth exercise wheel control circuit of claim 1, wherein the LCD screen is of segment code customized design, and the driver chip communicates with the MCU processor via an SPI interface.
  5. 5. The intelligent bluetooth exercise wheel control circuit of claim 1, wherein the power module comprises a charge management circuit and a lithium battery, the charge management circuit comprising a TP4056 chip.
  6. 6. The intelligent bluetooth exercise wheel control circuit of claim 1, wherein the GPIO interface of the MCU processor is assigned as follows: the 4 interfaces are connected with signal input and interrupt trigger of the Hall sensor; the 6 interfaces drive LCD screen data and control signals; 2 interfaces are connected with UART communication of the Bluetooth module; the 2 interfaces are configured as ADC inputs for monitoring lithium battery voltage.

Description

Intelligent Bluetooth abdomen building roller control circuit Technical Field The utility model relates to the technical field of abdomen building roller control, in particular to an intelligent Bluetooth abdomen building roller control circuit. Background The traditional abdomen building wheel product generally lacks the functions of motion data acquisition and intelligent interaction, so that a user cannot accurately master the training intensity and effect, and the existing abdomen building wheel with the counting function mostly adopts a mechanical counter, so that the problems of easiness in abrasion, low precision and incapability of recording motion tracks exist; At present, some exercise wheels try to detect rotation by adopting a photoelectric sensor, but are greatly interfered by ambient light, and have high false triggering rate under complex use scenes, so that the intelligent requirement of modern exercise equipment is difficult to meet, and therefore, an intelligent Bluetooth exercise wheel control circuit is provided. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides the following technical scheme for achieving the purposes: an intelligent bluetooth exercise wheel control circuit, comprising: The device comprises a motion detection module, a data processing module, a display module and a power supply module; the motion detection module is a high-precision Hall sensor and is used for detecting the motion trail, the rotation times and the displacement distance of the abdomen building wheel in real time; The data processing module adopts a low-power consumption MCU processor, and configures at least 28 GPIO interfaces based on ArmCortex-M0 cores, wherein the main frequency is not lower than 48 MHz; The display module is a low-power-consumption LCD screen and is connected with the MCU processor through the driving chip; the MCU processor integrates the Bluetooth communication module and wirelessly transmits the motion data to the external terminal equipment. Preferably, the high-precision hall sensor is a linear hall element, and a pulse signal is generated through relative displacement between the magnet and the sensor; The MCU processor calculates the movement speed and displacement according to the pulse frequency. Preferably, the MCU processor dynamically adjusts the main frequency to optimize power consumption in the standby mode when the current is less than 5 mu A, and responds to the signal input of the Hall sensor through the GPIO interrupt awakening mechanism. Preferably, the LCD screen adopts a segment code customized design, and the driving chip is communicated with the MCU processor through an SPI interface. Preferably, the power module comprises a charging management circuit and a lithium battery, wherein the charging management circuit comprises a TP4056 chip, and supports 1A constant current charging and overcharge protection. Preferably, the GPIO interface of the MCU processor is allocated as follows: the 4 interfaces are connected with signal input and interrupt trigger of the Hall sensor; the 6 interfaces drive LCD screen data and control signals; 2 interfaces are connected with UART communication of the Bluetooth module; the 2 interfaces are configured as ADC inputs for monitoring lithium battery voltage. The utility model has the following beneficial effects: The linear Hall sensor is adopted, the pulse signal is generated through the relative displacement of the magnet and the sensor, the detection precision reaches +/-0.5 circle, the displacement error is less than or equal to 2%, the motion track, the rotation times and the speed can be accurately recorded, compared with the traditional mechanical counter or photoelectric sensor, the anti-interference capability is strong (such as strong light resistance and humid environment), and false triggering is avoided. The motion data is calculated in real time through a Cortex-M0 kernel MCU with 48MHz main frequency and a 12-bit ADC (analog to digital converter) at a high sampling rate of 200Hz, and a sliding window algorithm and a three-point positioning method are combined, so that the mechanical vibration interference is eliminated, the real-time property and the accuracy of the data are ensured, meanwhile, the GPIO interface is clearly allocated (4 Hall+6 LCD+2 Bluetooth+2 ADC), the circuit structure is clear, and the hardware debugging and the function expansion are facilitated. Drawings Fig. 1 is a first circuit diagram of an intelligent bluetooth exercise wheel control circuit according to the present utility model. Fig. 2 is a second circuit diagram of the intelligent bluetooth exercise wheel control circuit according to the present utility model. Fig. 3 is a block diagram of an intelligent bluetooth exercise wheel control circuit according to the present utility model. Detailed Description The following description of the embodiments of the present utility model will