Swimming data monitoring circuit and swimming earphone

Abstract

The utility model relates to data acquisition technical field especially relates to a swimming data monitoring circuit and swimming earphone, swimming data monitoring circuit includes six axis inertial sensor for gathering the swimming data of user, at least one waterproof button is electrically connected with the processor, and is configured to send trigger instruction to the processor when being pressed, the processor with bluetooth host control IC is electrically connected with six axis inertial sensor, is used for controlling the working condition of six axis inertial sensor according to the trigger instruction of waterproof button, wireless communication module is connected with the processor communication, to realize the transmission of swimming data. Through the setting of above-mentioned hardware integration and circuit optimization, the accurate collection, stable transmission and convenient interaction of motion data are realized.

Description

Technical Field

[0001] This utility model relates to the field of data monitoring circuit technology, and in particular to a swimming data monitoring circuit and swimming headphones. Background Technology

[0002] As people's education levels rise, more and more people are improving their swimming skills through professional training. Smart swimming training headphones are an important piece of equipment in swimming, protecting swimmers' safety during the process. Swimmers can clearly hear the coach's reminders through the headphones and correct their mistakes promptly. However, traditional swimming training headphones currently available have limited functionality, cannot record exercise data, and are difficult to use to understand swimmers' individual swimming conditions, thus failing to meet the personalized needs of swimmers. Utility Model Content

[0003] To address at least one deficiency in the existing swimming headphones, this utility model provides a swimming data monitoring circuit, which includes: A processor with a Bluetooth master control IC; A six-axis inertial sensor, electrically connected to the processor, is used to collect the user's swimming data; At least one waterproof button is electrically connected to the processor and configured to send a trigger command to the processor when pressed, and the processor controls the working state of the six-axis inertial sensor according to the trigger command of the waterproof button; A wireless communication module is connected to the processor to transmit swimming data.

[0004] In one embodiment, the six-axis inertial sensor integrates a three-axis accelerometer and a three-axis gyroscope to detect angular velocity, acceleration, and attitude angle during swimming.

[0005] In one embodiment, the Bluetooth master control IC is model AC7016F8.

[0006] In one embodiment, the charging protection circuit includes at least a transient suppression diode and a charging protection chip. The transient suppression diode is connected to the battery module and is used to suppress transient overvoltages. The charging protection chip is electrically connected to both the battery module and the processor.

[0007] In one embodiment, the system further includes a radio chip and an antenna, which are electrically connected to the processor to receive wireless signals and output audio signals. The input terminal of the radio chip is electrically connected to the input of the audio power amplifier module through a power amplifier circuit to receive the audio signal from the radio chip and amplify it.

[0008] In one embodiment, a voltage regulator circuit is also included, which is electrically connected between the six-axis inertial sensor and the battery module to provide a stable power supply voltage for the six-axis inertial sensor.

[0009] In one embodiment, an indicator light, electrically connected to the processor, is also included to indicate the operating status.

[0010] In one embodiment, a wireless communication module is also included, which is communicatively connected to the processor to enable data interaction.

[0011] This utility model also provides a swimming earphone, which adopts the swimming data monitoring circuit as described in any of the above embodiments.

[0012] In one embodiment, the device includes a left sound unit, a right sound unit, and a housing with a closed cavity, the housing accommodating the left sound unit, the right sound unit, and a swimming data monitoring circuit; the waterproof button is located on the housing containing the right sound unit.

[0013] Based on the above, compared with the prior art, the swimming data monitoring circuit provided by this utility model achieves accurate collection, stable transmission and convenient interaction of sports data through hardware integration and circuit optimization, solves the problem of traditional headphones having limited functions and being unable to record data, and meets the personalized needs of swimming training.

[0014] Other features and beneficial effects of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Unless otherwise specified, the positional relationship of the drawings in the following description is based on the direction in which the components are drawn in the figure.

[0016] Figure 1 A structural block diagram of a swimming data monitoring circuit provided in an embodiment of this utility model; Figure 2 A structural block diagram of a swimming data monitoring circuit provided in another embodiment of this utility model; Figure 3 The circuit schematic of the Bluetooth master control IC; Figure 4 The circuit diagram for the charging protection circuit; Figure 5 A circuit diagram showing the connection between the radio chip and the waterproof button. Figure 6 This is the circuit schematic of a power amplifier circuit; Figure 7 This is the circuit schematic of an audio power amplifier module; Figure 8 This is a circuit diagram showing the connection between a six-axis inertial sensor and a voltage regulator circuit. Figure 9 This is a schematic diagram of the structure of swimming headphones. Detailed Implementation

[0017] 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 some embodiments of this utility model, not all embodiments. The technical features designed in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0018] In the description of this utility model, it should be noted that all terms used in this utility model (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains, and should not be construed as limiting this utility model; it should be further understood that the terms used in this utility model should be understood to have the same meaning as those in the context of this specification and in the relevant field, and should not be understood in an idealized or overly formal sense, except as expressly defined in this utility model.

[0019] Please see Figure 1 This utility model provides a swimming data monitoring circuit, which includes at least a six-axis inertial sensor, at least one waterproof button, a processor with a Bluetooth master control IC, and a wireless communication module.

[0020] In a specific implementation, the six-axis inertial sensor can be fixed inside the earphone. It integrates a three-axis accelerometer and a three-axis gyroscope to collect and detect swimming data such as angular velocity, acceleration, and attitude angle during the user's swimming process in real time. In this embodiment, the preferred six-axis inertial sensor is model Sc7122, which includes a chip U6.

[0021] At least one waterproof button is electrically connected to the processor and configured to send a trigger command to the processor when pressed. A processor with a Bluetooth master control IC is electrically connected to the six-axis inertial sensor and is used to control the operating state of the six-axis inertial sensor according to the trigger command of the waterproof button. Preferably, please refer to Figure 2 , Figure 3 The Bluetooth master control IC is model AC7016F8. This processor can connect to a six-axis inertial sensor via the I²C bus to receive and analyze raw swimming data. Furthermore, the Bluetooth master control IC is electrically connected to a clock crystal oscillator to enable coordinated operation between the various modules.

[0022] The wireless communication module communicates with the processor to transmit swimming data. The wireless communication module can use, but is not limited to, Wi-Fi or Bluetooth communication. The processor communicates with a smart terminal (such as a mobile app) via the wireless communication module to facilitate the transmission of relevant swimming data.

[0023] Specifically, the swimming data monitoring circuit provided in this embodiment collects swimming data through a six-axis inertial sensor. This six-axis inertial sensor uses MEMS technology to detect three-axis acceleration and three-axis angular velocity during swimming. Data recording begins when the user presses the waterproof button, and the six-axis inertial sensor starts working. Recording ends when the waterproof button is pressed again. The recorded data is then decoded, decompressed, and processed by a processor with a Bluetooth master control IC. The processor incorporates a Kalman filter algorithm to perform dynamic error compensation and attitude calculation on the raw data, generating corresponding swimming parameters (such as stroke frequency, turning motion, and swimming speed). The generated data is transmitted to a mobile app via radio frequency modulation and an antenna through a wireless communication module. Users can view swimming time, speed, attitude, and other data information through the app.

[0024] It should be noted that the swimming data monitoring circuit also includes other function buttons to enable controls such as volume adjustment, function switching, and power on / off, facilitating effective interaction between the user and the swimming data monitoring circuit.

[0025] Furthermore, the swimming data monitoring circuit also includes a battery module, a charging protection circuit, and an audio amplifier module.

[0026] The battery module is electrically connected to the processor and provides power. In this embodiment, a 3.7V lithium polymer battery module is preferably used, and the entire circuit can be powered by a power management module.

[0027] The charging protection circuit is electrically connected to the processor and is used to provide charging protection for the battery module. Specifically, the charging protection circuit, electrically connected to the battery module, provides overvoltage and overcurrent protection. Please refer to [link / reference]. Figure 4In this embodiment, the preferred charging protection circuit includes at least a transient suppression diode and a charging protection chip. The transient suppression diode is connected to the battery module and is used to suppress transient overvoltages. The charging protection chip is electrically connected to both the battery module and the processor. The preferred model of the charging protection chip is P14C13S to effectively achieve charging protection.

[0028] Optionally, the charging protection circuit also includes a thermistor; the thermistor is connected in series in the positive terminal line of the battery module and is used to limit the current by increasing its own resistance during overcurrent. By configuring the charging protection circuit as described above, transient overvoltage and overcurrent can be effectively suppressed, preventing short-circuit damage.

[0029] Of course, based on this concept, those skilled in the art can also make reasonable adjustments to the charging protection circuit according to actual needs, all of which fall within the protection scope of this utility model.

[0030] Preferably, the audio amplifier module is electrically connected to the processor to enable audio playback. The audio amplifier module is also electrically connected to the left and right sound units to amplify the audio signal and drive the left and right sound units to produce sound, effectively supporting clear underwater playback. Please refer to [link / reference]. Figure 5 In this embodiment, the preferred audio amplifier module includes two audio amplifier chips, both of which are NS4131. The audio amplifier module also includes corresponding peripheral circuit components for setting appropriate gain, performing power filtering, etc., to ensure the performance and stability of the amplifier and avoid distortion and other problems.

[0031] Optionally, the swimming data monitoring circuit further includes a radio chip and an antenna. The radio chip and antenna are electrically connected to the processor to receive wireless signals and output audio signals. The input terminal of the radio chip is electrically connected to the input of the audio amplifier module through a power amplifier circuit to receive the audio signal from the radio chip and amplify it.

[0032] Please continue reading. Figure 5 In this embodiment, the preferred radio chip model is QN8035. Furthermore, the radio chip is also connected to corresponding peripheral circuit components (such as capacitors and resistors) for signal adjustment and matching to ensure that the radio chip can work normally and output a stable and suitable audio signal. In addition, these peripheral circuit components can also be used for filtering, biasing, impedance matching, and other functions to help improve the performance and anti-interference capability of the radio chip.

[0033] Please see Figure 6The input of the power amplifier circuit is connected to the radio chip, and the output is connected to the audio power amplifier module. The power amplifier circuit includes a power amplifier and several surrounding resistors and capacitors to amplify the signal. The base of the power amplifier receives the audio signal, and the collector and emitter amplify the signal through current changes, thereby achieving power amplification. The power amplifier also includes a filter circuit composed of inductors and capacitors to remove power supply ripple and high-frequency noise, ensuring the purity of the audio signal and avoiding interference.

[0034] Please see Figure 7 The audio amplifier module's input is connected to a power amplifier circuit, and its output is connected to the left and right speaker units to achieve audio playback. The audio amplifier module includes several amplifier chips and surrounding resistors and capacitors. The amplifier chip model NS4131 can be used, supporting dual-channel output and featuring high-efficiency amplification and low distortion characteristics. The audio amplifier module uses the NS4131 as its core, achieving high-efficiency power amplification of the audio signal through differential input, negative feedback amplification, and multi-stage filtering. The surrounding resistors and capacitors are designed to provide multi-stage filtering.

[0035] Please see Figure 8 The swimming data monitoring circuit further includes a voltage regulator circuit electrically connected between the six-axis inertial sensor and the battery module to provide a stable power supply voltage for the six-axis inertial sensor. Preferably, the voltage regulator circuit includes at least a voltage regulator chip U8, through which the battery outputs a stable 3.3V voltage, providing a suitable power supply voltage for the six-axis inertial sensor and the processor.

[0036] Furthermore, the voltage regulator circuit also includes a decoupling circuit composed of inductors and capacitors connected between the voltage regulator chip U8 and the six-axis inertial sensor, used to filter out power supply noise and ensure the stability of the power supply provided to the six-axis inertial sensor.

[0037] In other embodiments, an indicator light, electrically connected to the processor, is also included to indicate the operating status. In this embodiment, the indicator light is preferably an LED.

[0038] Please see Figure 9 This utility model also provides a swimming headset, which adopts the swimming data monitoring circuit as described in any of the above embodiments, so as to effectively improve the performance of the swimming headset and the swimming data monitoring and transmission functions.

[0039] Furthermore, the swimming headphones include a left sound unit, a right sound unit, and a housing with a closed cavity, the housing accommodating the left sound unit, the right sound unit, and the swimming data monitoring circuit; the waterproof button is located on the housing where the right sound unit is located.

[0040] The outer shell with a closed cavity is made of IPX8 waterproof material to ensure water tightness in underwater environments and prevent damage to the circuitry from water immersion.

[0041] The right speaker unit has a waterproof button on its casing. When pressed, it sends a trigger command to the processor to control the start and stop of the six-axis inertial sensor. The data collected by the six-axis inertial sensor is processed by the processor and then transmitted to an external terminal via radio frequency modulation and antenna through the wireless communication module. Users can view swimming time, speed, posture and other data through the APP.

[0042] In summary, compared with the prior art, the swimming data monitoring circuit and swimming headphones provided by this utility model, through hardware integration and circuit optimization, realize accurate collection, stable transmission and convenient interaction of sports data, solve the problem of traditional headphones having limited functions and being unable to record data, and meet the personalized needs of swimming training.

[0043] Furthermore, those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of this utility model can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or background art simultaneously. Those skilled in the art should understand that any content not mentioned in a claim should not be construed as a limitation on that claim.

[0044] Although this document frequently uses terms such as six-axis inertial sensor, waterproof button, processor with Bluetooth master control IC, and wireless communication module, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model. The terms "first," "second," etc. (if present), in the specification, claims, and accompanying drawings of the embodiments of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A swimming data monitoring circuit, characterized by, include: A processor with a Bluetooth master control IC; A six-axis inertial sensor, electrically connected to the processor, is used to collect the user's swimming data; At least one waterproof button is electrically connected to the processor and configured to send a trigger command to the processor when pressed, and the processor controls the working state of the six-axis inertial sensor according to the trigger command of the waterproof button; A wireless communication module is connected to the processor to transmit swimming data.

2. The swimming data monitoring circuit of claim 1, wherein: The six-axis inertial sensor integrates a three-axis accelerometer and a three-axis gyroscope, used to detect angular velocity, acceleration, and attitude angle during swimming.

3. The swimming data monitoring circuit according to claim 1, characterized in that: The Bluetooth master control IC is model AC7016F8.

4. The swimming data monitoring circuit according to claim 1, characterized in that, Also includes: A battery module, electrically connected to the processor, is used to provide power. A charging protection circuit, electrically connected to the processor, is used to implement charging protection for the battery module. An audio amplifier module is electrically connected to the processor to enable audio playback.

5. The swimming data monitoring circuit according to claim 4, characterized in that: The charging protection circuit includes at least a transient suppression diode and a charging protection chip. The transient suppression diode is connected to the battery module and is used to suppress transient overvoltage. The charging protection chip is electrically connected to the battery module and the processor, respectively.

6. The swimming data monitoring circuit according to claim 4, characterized in that: It also includes a radio chip and an antenna, which are electrically connected to the processor to receive wireless signals and output audio signals. The input terminal of the radio chip is electrically connected to the input of the audio power amplifier module through a power amplifier circuit to receive the audio signal from the radio chip and amplify it.

7. The swimming data monitoring circuit according to claim 4, characterized in that: It also includes a voltage regulator circuit, which is electrically connected between the six-axis inertial sensor and the battery module to provide a stable power supply voltage for the six-axis inertial sensor.

8. The swimming data monitoring circuit according to claim 1, characterized in that: It also includes indicator lights, which are electrically connected to the processor and are used to indicate the working status.

9. A swimming headset, characterized in that: The swimming data monitoring circuit described in any one of claims 1-8 is adopted.

10. The swimming headphones according to claim 9, characterized in that: It includes a left sound unit, a right sound unit, and a housing with a closed cavity, the housing accommodating the left sound unit, the right sound unit, and a swimming data monitoring circuit; the waterproof button is located on the housing where the right sound unit is located.

Images