Dog training device and dog training system having the same

Abstract

The utility model discloses a kind of dog training device and the dog training system with the dog training device, wherein dog training device includes: first control module, first radio frequency module, first audio processing module and first power module, first radio frequency module, first audio processing module, first power module are electrically connected with first control module respectively, first radio frequency module is electrically connected with first audio processing module, first power module is powered for first control module, first radio frequency module, first audio processing module, first radio frequency module is used to establish radio frequency communication with external transmitting device, first audio processing module is used to amplify the audio signal output by first radio frequency module after output or directly output according to the instruction output by first control module.The utility model solves the problem that traditional dog training device audio output is single, and the interaction is insufficient, with the advantage that voice instruction is clear, and function is flexible, suitable for various pet training scene.

Description

Technical Field

[0001] This utility model relates to the field of pet supplies technology, and in particular discloses a dog training device and a dog training system having the dog training device. Background Technology

[0002] With the increasing number of pet owners, dog training devices have become widely used as key equipment for regulating pet behavior. Currently, most dog training devices on the market consist of a transmitter and a receiver. The transmitter sends electric shock or vibration signals to control the receiver, enabling pet training. However, these products have significant drawbacks. Their functionality is too limited; they can only output preset physical stimulation signals such as electric shocks and vibrations, and cannot transmit the owner's voice commands. Some dog training devices with voice functionality integrate voice playback modules, but they can only play pre-stored audio and cannot play real-time voice commands from the owner. The training process lacks interactivity, resulting in low efficiency in the pet's understanding of commands. Summary of the Invention

[0003] This invention provides a dog training device and a dog training system incorporating the device, aiming to solve the problem that existing dog training devices have overly limited functions.

[0004] This utility model relates to a dog training device, which includes: a first control module, a first radio frequency module, a first audio processing module, and a first power supply module. The first radio frequency module, the first audio processing module, and the first power supply module are electrically connected to the first control module. The first radio frequency module is electrically connected to the first audio processing module. The first power supply module supplies power to the first control module, the first radio frequency module, and the first audio processing module. The first radio frequency module is used to establish radio frequency communication with an external transmitting device. The first audio processing module is used to amplify the audio signal output by the first radio frequency module and output it or output it directly according to the instructions output by the first control module.

[0005] As a further improvement of this utility model, the first audio processing module includes a first audio processing unit, a second audio processing unit, and an output signal coupling unit. The first audio processing unit and the second audio processing unit are connected in parallel. The output terminals of the first audio processing unit and the second audio processing unit are respectively electrically connected to the input terminal of the output signal coupling unit. Both the first audio processing unit and the second audio processing unit include an amplified audio output circuit and a normal audio output circuit connected in parallel.

[0006] As a further improvement of this utility model, the amplified audio output circuit includes an input circuit, an operational amplifier circuit, and an output circuit connected in series. The normal audio output circuit includes a transistor, which is electrically connected to the first control module. The input terminal of the transistor is electrically connected to the input terminal of the input circuit, and the output terminal of the transistor is electrically connected to the output terminal of the output circuit. The transistor conducts when it receives a high-level signal output by the first control module and disconnects when it receives a low-level signal output by the first control module.

[0007] As a further improvement of this utility model, the input circuit includes an input coupling capacitor and a first impedance resistor connected in series, and the input coupling capacitor is electrically connected to the output terminal of the first radio frequency module. The operational amplifier circuit includes an operational amplifier, a pull-up resistor, a first feedback resistor, a first feedback capacitor, a second feedback resistor, a second feedback capacitor, and a power supply filter capacitor. The third pin of the operational amplifier is electrically connected to the first impedance resistor. The pull-up resistor is electrically connected to the first pin of the operational amplifier. The first feedback resistor and the first feedback capacitor are connected in parallel and electrically connected to the first pin. The second feedback resistor and the second feedback capacitor are connected in parallel. The input terminals of the second feedback resistor and the second feedback capacitor are electrically connected to the third pin of the operational amplifier. The third pin is electrically connected to the first power supply module. The output terminals of the second feedback resistor and the second feedback capacitor are electrically connected to the fourth pin of the operational amplifier. The two ends of the power supply filter capacitor are electrically connected to the second pin and the fifth pin of the operational amplifier, respectively. The output circuit includes an output current-limiting resistor and a filter network. The input terminal of the output current-limiting resistor is electrically connected to the fourth pin of the operational amplifier. The output terminal of the output current-limiting resistor is electrically connected to one end of the filter network, and the other end of the filter network is grounded. The filter network includes a first filter capacitor and a first filter resistor connected in series.

[0008] As a further improvement of this utility model, the output signal coupling unit includes a first signal coupling capacitor, a second signal coupling capacitor, a second filter capacitor, a third filter capacitor, and a load unit. The input terminals of the first signal coupling capacitor and the second signal coupling capacitor are electrically connected to the output terminals of the first audio processing unit and the second audio processing unit, respectively. The output terminals of the first signal coupling capacitor and the second signal coupling capacitor are electrically connected to the input terminal of the load unit, respectively. The second filter capacitor is electrically connected to the output terminal of the first signal coupling capacitor, and the third filter capacitor is electrically connected to the output terminal of the second signal coupling capacitor.

[0009] As a further improvement of this utility model, the first radio frequency module includes an instruction processing unit, a radio frequency receiving unit, and a crystal oscillator unit. The instruction processing unit is electrically connected to the first control module, the first power supply module, the first audio processing module, the radio frequency receiving unit, and the crystal oscillator unit, respectively. The radio frequency receiving unit is used to input the received control instructions sent by the external transmitting device to the instruction processing unit for decoupling, thereby obtaining audio signals and / or control signals. The instruction processing unit is used to input the audio signals to the first audio processing module and / or input the control signals to the first control module.

[0010] As a further improvement of this utility model, the first control module is also externally connected to a functional module, which includes at least one of an electric shock unit, a vibration unit, and a buzzer unit.

[0011] As a further improvement of this utility model, the first power supply module includes a power supply, a low-dropout linear regulator, a fourth filter capacitor, a fifth filter capacitor, a sixth filter capacitor, and a seventh filter capacitor. The fourth and fifth filter capacitors are connected in parallel and are electrically connected to the ground terminal and the input terminal of the low-dropout linear regulator, respectively. The sixth and seventh filter capacitors are electrically connected to the ground terminal and the output terminal of the low-dropout linear regulator, respectively.

[0012] To address the aforementioned problems, this utility model also provides a dog training system, comprising a handheld terminal and one of the aforementioned dog trainers. The handheld terminal includes a second control module, a second radio frequency module, a second audio processing module, a second power supply module, and an audio acquisition module. The second radio frequency module, the second audio processing module, and the second power supply module are electrically connected to the second control module. The audio acquisition module is electrically connected to the second radio frequency module, and the second radio frequency module is electrically connected to the second audio processing module. The second power supply module provides power to the second control module, the second radio frequency module, the second audio processing module, and the audio acquisition module. The second radio frequency module is used to establish radio frequency communication with the first radio frequency module of the dog trainer or the second radio frequency module of the other handheld terminal. The audio acquisition module is used to acquire sound signals and input them to the second radio frequency module. The second radio frequency module is used to encode the sound signals and send them to the first radio frequency module, or to send the control signals output by the second control module to the first radio frequency module.

[0013] As a further improvement of this utility model, the audio acquisition module includes a microphone, a bias resistor, an eighth filter capacitor, a ninth filter capacitor, a tenth filter capacitor, a second impedance resistor, and a third signal coupling capacitor. The microphone, the second impedance resistor, and the third signal coupling capacitor are connected in series. One end of the bias resistor is electrically connected to the second power supply module and the other end is connected to the second impedance resistor. One end of the eighth filter capacitor is connected to the bias resistor, and the other end of the eighth filter capacitor is grounded. One end of the ninth filter capacitor is electrically connected to the input terminal of the second impedance resistor, and the other end of the ninth filter capacitor is grounded. One end of the tenth filter capacitor is electrically connected to the output terminal of the second impedance resistor, and the other end of the tenth filter capacitor is grounded.

[0014] The beneficial effects achieved by this utility model are as follows: The dog training device of this utility model realizes real-time voice interaction between the handheld terminal and the dog training device through the first radio frequency module. The owner can send personalized voice commands, and the dog can understand the intention of the command more clearly. At the same time, the first audio processing module supports switching between audio signal amplification output or direct output to adapt to the voice playback needs of different environments. Thus, on the basis of integrating traditional dog training functions, voice interaction function is added to meet the training needs of dogs with different personalities and sizes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of one embodiment of the dog training device of this utility model; Figure 2 This is a schematic diagram of the circuit structure of the first audio processing unit in one embodiment of the dog training device of this utility model; Figure 3 This is a schematic diagram of the circuit structure of the second audio processing unit in one embodiment of the dog training device of this utility model; Figure 4 This is a schematic diagram of the circuit structure of the output signal coupling unit of one embodiment of the dog training device of this utility model; Figure 5 This is a schematic diagram of the circuit structure of the first radio frequency module of one embodiment of the dog training device of this utility model; Figure 6 This is a schematic diagram of the circuit structure of the first control module of one embodiment of the dog training device of this utility model; Figure 7 This is a schematic diagram of the circuit structure of the first power supply module of one embodiment of the dog training device of this utility model; Figure 8 This is a schematic diagram of the structure of one embodiment of the dog training system of this utility model; Figure 9 This is a schematic diagram of the circuit structure of the audio acquisition module in one embodiment of the dog training system of this utility model. Detailed Implementation

[0016] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 A schematic diagram of one embodiment of the dog training device of this utility model is shown. Figure 1 As shown, the dog training device includes: a first control module 1, a first radio frequency module 2, a first audio processing module 3, and a first power supply module 4. The first radio frequency module 2, the first audio processing module 3, and the first power supply module 4 are electrically connected to the first control module 1, respectively. The first radio frequency module 2 is electrically connected to the first audio processing module 3. The first power supply module 4 supplies power to the first control module 1, the first radio frequency module 2, and the first audio processing module 3. The first radio frequency module 2 is used to establish radio frequency communication with an external transmitting device. The first audio processing module 3 is used to amplify the audio signal output by the first radio frequency module 2 according to the instructions output by the first control module 1 and then output it or output it directly.

[0018] The first control module 1 uses a PY32F031 microcontroller, powered by 3.3V. Its GPIO pins are electrically connected to the I2C interface of the first RF module 2 and the first audio processing module 3, respectively. As the core control unit of the dog trainer, it is responsible for receiving control signals transmitted by the first RF module 2 and outputting commands to control the audio output mode of the first audio processing module 3. The first RF module 2 uses a 2.4GHz frequency band RF intercom chip, which has RF signal transmission and decoupling functions and can establish stable RF communication with external transmitting devices (such as handheld devices). It is electrically connected to the first control module 1 and the first audio processing module 3, respectively. The first RF module 2 receives RF signals from external transmitting devices and decouples them to obtain audio signals and / or control signals. It then transmits the decoupled audio signals to the first audio processing module 3 and the control signals to the first control module 1. The first control module 1 controls the first RF module 2 to amplify the audio signals and output them or to output the audio signals directly, according to the control signals. The first audio processing module 3 is electrically connected to the first control module 1 and the first radio frequency module 2, respectively. It can switch the audio output mode according to the instructions of the first control module 1: outputting the audio signal after amplification to suit noisy outdoor environments; or outputting the audio signal directly to suit quiet indoor environments. The first power supply module 4 is electrically connected to the first control module 1, the first radio frequency module 2, and the first audio processing module 3 to provide stable power to each module.

[0019] Specifically, after the first RF module 2 is powered on, the first control module 1 configures its operating parameters via the I2C bus: In receive mode, the 2.4GHz RF signal received by the antenna enters the RF intercom chip of the first RF module 2 through a pin, and is subsequently amplified by a low-noise amplifier (LNA), down-converted by a mixer, filtered by intermediate frequency, and demodulated to obtain an audio signal and / or a control signal; the audio signal is output from the pin to the first audio processing module 3, and the control signals (such as "switch audio path" and "start vibration") are transmitted to the first control module 1 through the pin. In addition, the first RF module 2 supports CTCSS / DCS sub-audio coding function, which can filter interference signals in the same frequency band and further improve communication stability.

[0020] In this embodiment, the first radio frequency module 2 enables real-time voice interaction between the handheld device and the dog trainer. The owner can send personalized voice commands, and the dog can understand the command intent more clearly. At the same time, the first audio processing module 3 supports switching between amplified audio signal output and direct output to adapt to the voice playback needs of different environments. Thus, on the basis of integrating traditional dog training functions, voice interaction function is added to meet the training needs of dogs with different personalities and sizes.

[0021] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, the first audio processing module 3 includes a first audio processing unit 31, a second audio processing unit 32, and an output signal coupling unit 33. The first audio processing unit 31 and the second audio processing unit 32 are connected in parallel. The output terminals of the first audio processing unit 31 and the second audio processing unit 32 are electrically connected to the input terminal of the output signal coupling unit 33, respectively. Both the first audio processing unit 31 and the second audio processing unit 32 include an amplified audio output circuit 301 and a normal audio output circuit 302 connected in parallel.

[0022] The amplified audio output circuit 301 includes an input circuit 3011, an operational amplifier circuit 3012, and an output circuit 3013 connected in series. The normal audio output circuit 302 includes a transistor Q1, which is electrically connected to the first control module 1. The input terminal of the transistor Q1 is electrically connected to the input terminal of the input circuit 3011, and the output terminal of the transistor Q1 is electrically connected to the output terminal of the output circuit 3013. The transistor Q1 is turned on when it receives a high-level signal from the first control module 1 and turned off when it receives a low-level signal from the first control module 1.

[0023] The input circuit 3011 includes an input coupling capacitor C34 and a first impedance resistor R60 connected in series. The input coupling capacitor C34 is electrically connected to the output terminal of the first radio frequency module 2.

[0024] The operational amplifier circuit 3012 includes an operational amplifier U1, a pull-up resistor R18, a first feedback resistor R55, a first feedback capacitor C28, a second feedback resistor R20, a second feedback capacitor C31, and a power supply filter capacitor. The third pin of the operational amplifier U1 is electrically connected to the first impedance resistor R60. The pull-up resistor R18 is electrically connected to the first pin of the operational amplifier U1. The first feedback resistor R55 and the first feedback capacitor C28 are connected in parallel and electrically connected to the first pin. The second feedback resistor R20 and the second feedback capacitor C31 are connected in parallel. The input terminals of the second feedback resistor R20 and the second feedback capacitor C31 are electrically connected to the third pin of the operational amplifier U1. The third pin is electrically connected to the first power supply module 4. The output terminals of the second feedback resistor R20 and the second feedback capacitor C31 are electrically connected to the fourth pin of the operational amplifier U1. The two ends of the power supply filter capacitor are electrically connected to the second pin and the fifth pin of the operational amplifier U1, respectively.

[0025] The output circuit 3013 includes an output current-limiting resistor R59 and a filter network. The input terminal of the output current-limiting resistor R59 is electrically connected to the fourth pin of the operational amplifier U1, and the output terminal of the output current-limiting resistor R59 is electrically connected to one end of the filter network. The other end of the filter network is grounded. The filter network includes a first filter capacitor C32 and a first filter resistor R58 connected in series.

[0026] Specifically, the first audio processing module 3 is the core of the dual-path switching for "audio amplification / normal output". It includes a first audio processing unit 31, a second audio processing unit 32, and an output signal coupling unit 33. The first audio processing unit 31 and the second audio processing unit 32 adopt a symmetrical circuit design and have the same circuit structure to adapt to two audio signals (VOUT1, VOUT2). This embodiment will take the first audio processing unit 31 as an example for detailed explanation: like Figure 2As shown, the amplified audio output circuit 301 consists of an input circuit 3011, an operational amplifier circuit 3012, and an output circuit 3013 connected in series. It is responsible for amplifying the audio signal (amplitude 0.1-0.5Vpp) output by the first RF module 2 to adapt to noisy outdoor environments. Specifically, the input circuit 3011 consists of an input coupling capacitor C34 connected in series with a first impedance resistor R60. One end of the input coupling capacitor C34 is electrically connected to the AFOUT pin of the first RF module 2, and the other end is electrically connected to one end of the first impedance resistor R60. The other end of the first impedance resistor R60 is electrically connected to the non-inverting input terminal (pin 3) of the operational amplifier U1. The input coupling capacitor C34 is a tantalum capacitor with low leakage current characteristics, which can effectively isolate the DC component in the audio signal. The function of the first impedance resistor R60 is to match the output impedance of the first RF module 2 with the input impedance of the operational amplifier U1 to reduce signal reflection loss. The operational amplifier circuit 3012 uses the SGM321 operational amplifier U1, which features low noise (input noise voltage ≤5nV / √Hz) and high gain (open-loop gain ≥100dB). The specific connections are as follows: power supply pin 2 (V-) is grounded; pin 5 (V+) is electrically connected to the OPA-VCC (3.3V) of the first power supply module 4; a power supply filter capacitor C29 is connected in parallel next to the V+ pin to filter out high-frequency noise in the power supply and ensure stable power supply to the op-amp; the non-inverting input (pin 3) is electrically connected to the other end of the first impedance resistor R60, and simultaneously connected to the OPA-VCC through a pull-up resistor R18, providing a DC bias voltage of approximately 2.0V to the non-inverting input, enabling the op-amp to operate in Class B amplification mode and avoiding crossover distortion; the inverting input (pin 1) is electrically connected to the op-amp output (pin 4) through the first feedback resistor R55, and simultaneously connected in parallel with the first feedback capacitor C28; the first... The feedback resistor R55 and the first impedance resistor R60 form the amplification factor formula (A = 1 + first feedback resistor R55 / first impedance resistor R60). When the first feedback resistor R55 = 100kΩ and the first impedance resistor R60 = 1kΩ, the amplification factor A = 101 times (approximately 40dB). The amplification can be adjusted from 5 to 20 times by changing the value of the first feedback resistor R55 (50kΩ-200kΩ). The first feedback capacitor C28 compensates for the phase margin of the operational amplifier, preventing self-oscillation during high-frequency signal amplification. The inverting input terminal (pin 1) supplemented by the feedback network is also grounded through the second feedback resistor R20, and simultaneously connected in parallel with the second feedback capacitor C31. The second feedback resistor R20 and the pull-up resistor R18 form a voltage divider circuit, further stabilizing the bias voltage of the non-inverting input terminal. The second feedback capacitor C31 is used to filter out low-frequency noise at the inverting input terminal, improving the signal-to-noise ratio of the amplifier circuit. The output circuit 3013 consists of an output current-limiting resistor R59 connected in series with a filter network.One end of the output current-limiting resistor R59 is electrically connected to the output terminal (pin 4) of the op-amp, and the other end is electrically connected to one end of the filter network. The filter network consists of a first filter capacitor C32 and a first filter resistor R58 connected in series. One end of the first filter capacitor C32 is connected to the output current-limiting resistor R59, and the other end is connected to the first filter resistor R58. The other end of the first filter resistor R58 is grounded. The function of the output current-limiting resistor R59 is to limit the output current and protect the subsequent speaker. The first filter capacitor C32 and the first filter resistor R58 form an RC low-pass filter network, which can filter out high-frequency noise in the audio signal and smooth the output signal waveform to avoid noise from the speaker.

[0027] like Figure 2 As shown, the normal audio output circuit 302 uses an NPN transistor as a switch to achieve direct audio signal output, suitable for quiet indoor environments. Specifically: the base (B) of transistor Q1 is electrically connected to pin PB13 (EN1) of the first control module 1; the collector (C) of transistor Q1 is electrically connected to one end of the input coupling capacitor C34 in the input circuit 3011 (i.e., the non-inverting input of the operational amplifier), receiving the audio signal output from the first RF module 2; the emitter (E) of transistor Q1 is connected to the output circuit 301. The other end of the current-limiting resistor R59 in section 3 (i.e., the input end of the filter network) is electrically connected to directly transmit the audio signal to the output end. When the first control module 1 outputs a high level (3.3V), the transistor Q1 is saturated and turned on, and the audio signal is directly output from the collector of transistor Q1 through the emitter of transistor Q1 to the filter network, realizing normal volume output. When the first control module 1 outputs a low level (0V), there is no current at the base, the transistor Q1 is turned off, and the audio signal is only output through the amplified audio output circuit 301.

[0028] Furthermore, such as Figure 4 As shown, the output signal coupling unit 33 includes a first signal coupling capacitor C15, a second signal coupling capacitor C16, a second filter capacitor C21, a third filter capacitor C22, and a load unit. The input terminals of the first signal coupling capacitor C15 and the second signal coupling capacitor C16 are electrically connected to the output terminals of the first audio processing unit 31 and the second audio processing unit 32, respectively. The output terminals of the first signal coupling capacitor C15 and the second signal coupling capacitor C16 are electrically connected to the input terminal of the load unit, respectively. The second filter capacitor C21 is electrically connected to the output terminal of the first signal coupling capacitor C15, and the third filter capacitor C22 is electrically connected to the output terminal of the second signal coupling capacitor C16.

[0029] The output signal coupling unit 33 is responsible for coupling the output signals of the first audio processing unit 31 and the second audio processing unit 32 to the speaker (SP1, 8Ω / 1W), while filtering out residual noise. Specifically, one end of the first signal coupling capacitor C15 is electrically connected to the output terminal of the output current limiting resistor R59 of the first audio processing unit 31, and the other end is electrically connected to pin 1 of the speaker; one end of the second signal coupling capacitor C16 is electrically connected to the output terminal of the output current limiting resistor R39 of the second audio processing unit 32 (see [link to relevant documentation]). Figure 3 As shown), one end is electrically connected to pin 4 of the speaker; one end of the second filter capacitor C21 is electrically connected to the output of the first signal coupling capacitor C15, and the other end is grounded; one end of the third filter capacitor C22 is electrically connected to the output of the second signal coupling capacitor C16, and the other end is grounded. Among them, the first signal coupling capacitor C15 and the second signal coupling capacitor C16 serve as coupling capacitors to isolate the DC component in the audio signal and prevent DC current from flowing into the speaker voice coil and causing damage; the second filter capacitor C21 and the third filter capacitor C22 are high-frequency filter capacitors to filter out residual radio frequency interference in the output signal and ensure that the voice played by the speaker is clear and free of noise; pins 2 and 3 of the speaker are the internal voice coil connection terminals, and the dual voice coil design realizes dual-channel audio playback and improves the stereo effect of the voice.

[0030] Specifically, when the first control module 1 receives the "amplify audio" command, it outputs a low level to the base of transistor Q1, turning off transistor Q1. The audio signal output by the first RF module 2 is then coupled through the input coupling capacitor C34, impedance matching through the first impedance resistor R60, operational amplification (5-20 times) by SGM321, current limiting through the output current limiting resistor R59, and filtering through the first filter capacitor C32 / first filter resistor R58. Finally, it is coupled to the speaker through the first signal coupling capacitor C15 to amplify the volume output, suitable for noisy outdoor environments. When the "normal audio" command is received, the first control module 1 outputs a high level to the base of transistor Q1, turning on transistor Q1. The audio signal is then directly transmitted to the output circuit 3013 through transistor Q1, achieving normal volume output, suitable for quiet indoor environments. At the same time, the first feedback capacitor C28, the second feedback capacitor C31, the second filter capacitor C21, and other filtering components work together to improve the voice signal-to-noise ratio, ensuring that the dog can clearly distinguish the command.

[0031] Furthermore, such as Figure 1As shown, the first radio frequency module 2 includes an instruction processing unit 21, a radio frequency receiving unit 22, and a crystal oscillator unit 23. The instruction processing unit 21 is electrically connected to the first control module 1, the first power supply module 4, the first audio processing module 3, the radio frequency receiving unit 22, and the crystal oscillator unit 23, respectively. The radio frequency receiving unit 22 is used to input the received control instructions sent by the external transmitting device to the instruction processing unit 21 for decoupling, thereby obtaining audio signals and / or control signals. The instruction processing unit 21 is used to input the audio signals to the first audio processing module 3 and / or input the control signals to the first control module 1.

[0032] Among them, such as Figure 5 As shown, the first RF module 2 uses an RF intercom chip, integrating RF transceiver, audio encoding / decoding, and I2C communication functions, and is the core for realizing "two-way voice interaction + command transmission". Pin 8 (RF_IN) of the first RF module 2 is electrically connected to an external antenna interface through an RF matching circuit. The antenna interface uses an SMA female connector, allowing for connection to an internal PCB antenna or an external telescopic antenna. Pins 1 (XTAL1) and 2 (XTAL2) of the first RF module 2 are connected to an external 26MHz passive crystal oscillator (Y2), providing a reference oscillation signal for the first RF module 2. This signal is multiplied to the 2.4GHz operating frequency band by an internal phase-locked loop (PLL). A matching capacitor is connected in parallel next to the crystal oscillator to ensure stable oscillation frequency. Pin 3 (AFOUT) of the first RF module 2 is the demodulated audio signal output terminal, electrically connected to the input circuit 3011 of the first audio processing module 3 through a coupling capacitor C25. The coupling capacitor C25 isolates the DC component in the output signal of the first RF module 2, transmitting only the AC audio signal and preventing the DC component from affecting the operating point of the operational amplifier U1.

[0033] Specifically, after the first RF module 2 is powered on, the first control module 1 configures its operating parameters via the I2C bus: In receive mode, the 2.4GHz RF signal received by the antenna enters the chip through the RF_IN pin, and is subsequently amplified by a low-noise amplifier (LNA), down-converted by a mixer, filtered by an intermediate frequency (IF), and demodulated to obtain an audio signal and a control signal; the audio signal is output from the AFOUT pin to the first audio processing module 3, and the control signals (such as "switch audio path" and "start vibration") are transmitted to the first control module 1 via the SCLK / SDIO pins; in transmit mode, the voice signal from the handheld audio acquisition module is input through the MIC_P / MIC_N pins, encoded by the chip's internal audio codec unit, superimposed with the control signal, up-converted by a mixer, amplified by a power amplifier (PA), and output from the RF_OUT pin to the antenna, achieving bidirectional communication. Furthermore, the first RF module 2 supports CTCSS / DCS sub-audio encoding (configured via pin 19 GPIO1), which can filter interference signals in the same frequency band, further improving communication stability.

[0034] Furthermore, as shown in 7, the first control module 1 is also externally connected to a functional module 5, which includes at least one of an electric shock unit, a vibration unit, and a buzzer unit.

[0035] Specifically, pin 32 (PA11) of PY32F031 is electrically connected to the electric shock unit, and triggers the electric shock when the output is high; pin 30 (PA9) is electrically connected to the driver chip (DRV8833) of the vibration unit, and outputs a PWM signal to control the vibration frequency; pin 31 (PA10) is electrically connected to the piezoelectric ceramic sheet of the buzzer unit, and outputs a square wave signal to control the buzzer frequency.

[0036] Furthermore, such as Figure 7 As shown, the first power supply module 4 includes a power supply, a low-dropout linear regulator U6, a fourth filter capacitor C17, a fifth filter capacitor C18, a sixth filter capacitor C20, and a seventh filter capacitor C14. The fourth filter capacitor C17 and the fifth filter capacitor C18 are connected in parallel and are electrically connected to the ground terminal and the input terminal of the low-dropout linear regulator U6, respectively. The sixth filter capacitor C20 and the seventh filter capacitor C14 are electrically connected to the ground terminal and the output terminal of the low-dropout linear regulator U6, respectively.

[0037] The first power module 4 provides stable power to all modules of the dog trainer. It adopts a design of "lithium battery + low dropout linear regulator U6 + multi-stage filtering" and outputs a stable 3.3V voltage. For example, the power input uses a 3.7V / 1000mAh lithium polymer battery (BAT). The positive terminal of the battery is electrically connected to the external charger through a magnetic charging contact, and the negative terminal is directly grounded. The positive terminal of the battery is also electrically connected to the input terminal (VIN, pin 3) of the low dropout linear regulator U6, providing the input voltage (3.0-4.2V) to the low dropout linear regulator U6. A fourth filter capacitor C17 and a fifth filter capacitor C18 are connected in parallel next to pin 3 (VIN) of the low-dropout linear regulator U6. The fourth filter capacitor C17 is a tantalum capacitor, which filters out low-frequency ripple in the input voltage, and the fifth filter capacitor C18 is a ceramic capacitor, which filters out high-frequency noise. Pin 1 (GND) of the low-dropout linear regulator U6 is grounded, and pin 2 (VOUT) is the 3.3V output terminal, which meets the power supply requirements of all modules. A sixth filter capacitor C20 and a seventh filter capacitor C14 are connected in parallel next to the VOUT pin to further filter out the ripple in the output voltage. The VOUT output terminal of the low-dropout linear regulator U6 is divided into three power supply branches: it is electrically connected to the VCC pin (pin 48) of the first control module 1 through inductor L2, and inductor L2 suppresses the current fluctuations generated by the RF module from interfering with the control module; it is directly connected to the VCC_RF pin of the first RF module 2 to provide power to the first RF module 2; and it is electrically connected to the OPA-VCC pin of the first audio processing module 3 to provide power to the operational amplifier U1.

[0038] Specifically, the 3.0-4.2V voltage output from the lithium polymer battery is input to the VIN pin of the low-dropout linear regulator U6. Internally, the low-dropout linear regulator U6 stabilizes the output voltage at 3.3V through the coordinated operation of a reference voltage source, an error amplifier, and a regulating transistor. Simultaneously, the fourth filter capacitor C17, the fifth filter capacitor C18, the sixth filter capacitor C20, and the seventh filter capacitor C14 form a multi-stage filtering network to filter out high and low frequency noise, ensuring stable power supply to each module. The addition of inductor L2 isolates the power supply interference between the RF module and the control module, preventing current fluctuations during RF operation from causing the control module to crash.

[0039] Figure 8 A schematic diagram of one embodiment of the dog training system of this utility model is shown. Figure 8 As shown, the dog training system includes a handheld terminal 10 and a dog trainer 20 as described in one of the above embodiments. The handheld terminal 10 includes a second control module 101, a second radio frequency module 102, a second audio processing module 103, a second power supply module 104, and an audio acquisition module 105. The second radio frequency module 102, the second audio processing module 103, and the second power supply module 104 are electrically connected to the second control module 101, respectively. The audio acquisition module 105 is electrically connected to the second radio frequency module 102, and the second radio frequency module 102 is electrically connected to the second audio processing module 103. The second power supply module 101... 4 provides power to the second control module 101, the second radio frequency module 102, the second audio processing module 103, and the audio acquisition module 105. The second radio frequency module 102 is used to establish radio frequency communication with the first radio frequency module 202 of the dog trainer 20 or the second radio frequency module 102 of the other handheld terminal 10. The audio acquisition module 105 is used to acquire sound signals and input them to the second radio frequency module 102. The second radio frequency module 102 is used to encode the sound signals and send them to the first radio frequency module 202, or to send the control signals output by the second control module 101 to the first radio frequency module 202.

[0040] In this embodiment, radio frequency communication is established between the handheld terminal 10 and the dog trainer 20. The user collects the voice information input by the user through the audio acquisition module 105 of the handheld terminal 10, and then transmits it to the second radio frequency module 102 for encoding into audio commands. The second radio frequency module 102 then sends the audio commands to the first radio frequency module 202 of the dog trainer 20. After the user inputs control commands through the second control module 101, the second control module 101 transmits the control commands to the second radio frequency module 102, which then sends the control commands to the first radio frequency module 202 of the dog trainer 20. The second radio frequency module 102 sends the audio commands to the second audio processing module 103, which plays the audio commands. In addition, the second radio frequency module 102 transmits control commands to the second control module 101, which then switches the audio playback volume of the second audio processing module or controls the operation of external function modules according to the control commands.

[0041] It should be noted that the handheld terminals 10 can also establish radio frequency connections with each other to realize intercom functions, in order to meet the diverse needs of users.

[0042] Furthermore, such as Figure 9 As shown, the audio acquisition module 105 includes a microphone (MIC), a bias resistor (R44), an eighth filter capacitor (C74), a ninth filter capacitor (C71), a tenth filter capacitor (C72), a second impedance resistor (R46), and a third signal coupling capacitor (C73). The microphone (MIC), the second impedance resistor (R46), and the third signal coupling capacitor (C73) are connected in series. One end of the bias resistor (R44) is electrically connected to the second power supply module 104, and the other end is connected to the second impedance resistor (R46). One end of the eighth filter capacitor (C74) is connected to the bias resistor (R44), and the other end is grounded. One end of the ninth filter capacitor (C71) is electrically connected to the input terminal of the second impedance resistor (R46), and the other end is grounded. One end of the tenth filter capacitor (C72) is electrically connected to the output terminal of the second impedance resistor (R46), and the other end is grounded.

[0043] Specifically, the microphone (MIC) converts the user's voice (mechanical vibration) into a weak electrical signal. The bias resistor R44 provides the microphone's operating voltage. The microphone requires an external power supply to output an electrical signal. One end of R44 is connected to the second power module 104 (typically 3.3V), and the other end provides a stable bias of 2.0-2.5V to the microphone, ensuring its normal operation. The second impedance resistor R46 achieves signal impedance matching. The microphone's output impedance often differs from the input impedance of the subsequent RF module (e.g., the microphone's output impedance is 1kΩ, while the RF module's input impedance is 50Ω). The second impedance resistor R46 adjusts the signal amplitude, reduces reflection loss, and ensures stable signal transmission. The third signal coupling capacitor C73 isolates DC components. The microphone's output signal may contain DC components (such as residual bias voltage). The third signal coupling capacitor C73 only allows AC audio signals to pass through, blocking DC components from entering the subsequent RF module and preventing DC current from damaging the RF module's input circuitry. The eighth filter capacitor C74 is used to filter out high-frequency noise in the bias voltage, the ninth filter capacitor C71 is used to filter out low-frequency noise in the microphone output signal, and the tenth filter capacitor C72 is used to filter out mid-frequency noise in the signal.

[0044] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and modifications.

Claims

1. A dog training device, characterized in that, It includes: The system comprises a first control module, a first radio frequency (RF) module, a first audio processing module, and a first power supply module. The first RF module, the first audio processing module, and the first power supply module are electrically connected to the first control module. The first RF module is electrically connected to the first audio processing module. The first power supply module supplies power to the first control module, the first RF module, and the first audio processing module. The first RF module is used to establish RF communication with an external transmitting device. The first audio processing module is used to amplify the audio signal output by the first RF module and output it or output it directly according to the instructions output by the first control module.

2. The dog training device according to claim 1, characterized in that, The first audio processing module includes a first audio processing unit, a second audio processing unit, and an output signal coupling unit. The first audio processing unit and the second audio processing unit are connected in parallel. The output terminals of the first audio processing unit and the second audio processing unit are respectively electrically connected to the input terminal of the output signal coupling unit. Both the first audio processing unit and the second audio processing unit include an amplified audio output circuit and a normal audio output circuit connected in parallel.

3. The dog training device according to claim 2, characterized in that, The amplified audio output circuit includes an input circuit, an operational amplifier circuit, and an output circuit connected in series. The normal audio output circuit includes a transistor, which is electrically connected to the first control module. The input terminal of the transistor is electrically connected to the input terminal of the input circuit, and the output terminal of the transistor is electrically connected to the output terminal of the output circuit. The transistor conducts when it receives a high-level signal from the first control module and turns off when it receives a low-level signal from the first control module.

4. The dog training device according to claim 3, characterized in that, The input circuit includes an input coupling capacitor and a first impedance resistor connected in series, and the input coupling capacitor is electrically connected to the output terminal of the first radio frequency module. The operational amplifier circuit includes an operational amplifier, a pull-up resistor, a first feedback resistor, a first feedback capacitor, a second feedback resistor, a second feedback capacitor, and a power supply filter capacitor. The third pin of the operational amplifier is electrically connected to the first impedance resistor. The pull-up resistor is electrically connected to the first pin of the operational amplifier. The first feedback resistor and the first feedback capacitor are connected in parallel and electrically connected to the first pin. The second feedback resistor and the second feedback capacitor are connected in parallel. The input terminals of the second feedback resistor and the second feedback capacitor are electrically connected to the third pin of the operational amplifier. The third pin is electrically connected to the first power supply module. The output terminals of the second feedback resistor and the second feedback capacitor are electrically connected to the fourth pin of the operational amplifier. The two ends of the power supply filter capacitor are electrically connected to the second pin and the fifth pin of the operational amplifier, respectively. The output circuit includes an output current-limiting resistor and a filter network. The input terminal of the output current-limiting resistor is electrically connected to the fourth pin of the operational amplifier. The output terminal of the output current-limiting resistor is electrically connected to one end of the filter network, and the other end of the filter network is grounded. The filter network includes a first filter capacitor and a first filter resistor connected in series.

5. The dog training device according to claim 2, characterized in that, The output signal coupling unit includes a first signal coupling capacitor, a second signal coupling capacitor, a second filter capacitor, a third filter capacitor, and a load unit. The input terminals of the first signal coupling capacitor and the second signal coupling capacitor are electrically connected to the output terminals of the first audio processing unit and the second audio processing unit, respectively. The output terminals of the first signal coupling capacitor and the second signal coupling capacitor are electrically connected to the input terminal of the load unit, respectively. The second filter capacitor is electrically connected to the output terminal of the first signal coupling capacitor, and the third filter capacitor is electrically connected to the output terminal of the second signal coupling capacitor.

6. The dog training device according to claim 1, characterized in that, The first radio frequency module includes an instruction processing unit, a radio frequency receiving unit, and a crystal oscillator unit. The instruction processing unit is electrically connected to the first control module, the first power supply module, the first audio processing module, the radio frequency receiving unit, and the crystal oscillator unit, respectively. The radio frequency receiving unit is used to input control instructions received from an external transmitting device into the instruction processing unit for decoupling, thereby obtaining an audio signal and / or a control signal. The instruction processing unit is used to input the audio signal into the first audio processing module and / or input the control signal into the first control module.

7. The dog training device according to claim 1, characterized in that, The first control module is also externally connected to a functional module, which includes at least one of an electric shock unit, a vibration unit, and a buzzer unit.

8. The dog training device according to claim 1, characterized in that, The first power module includes a power supply, a low-dropout linear regulator, a fourth filter capacitor, a fifth filter capacitor, a sixth filter capacitor, and a seventh filter capacitor. The fourth and fifth filter capacitors are connected in parallel and are electrically connected to the ground terminal and the input terminal of the low-dropout linear regulator, respectively. The sixth and seventh filter capacitors are electrically connected to the ground terminal and the output terminal of the low-dropout linear regulator, respectively.

9. A dog training system, characterized in that, It includes a handheld terminal and a dog trainer as described in any one of claims 1-8. The handheld terminal includes a second control module, a second radio frequency module, a second audio processing module, a second power supply module, and an audio acquisition module. The second radio frequency module, the second audio processing module, and the second power supply module are electrically connected to the second control module. The audio acquisition module is electrically connected to the second radio frequency module. The second radio frequency module is electrically connected to the second audio processing module. The second power supply module supplies power to the second control module, the second radio frequency module, the second audio processing module, and the audio acquisition module. The second radio frequency module is used to establish radio frequency communication with the first radio frequency module of the dog trainer or the second radio frequency module of another handheld terminal. The audio acquisition module is used to acquire sound signals and input them to the second radio frequency module. The second radio frequency module is used to encode the sound signals and send them to the first radio frequency module, or to send the control signals output by the second control module to the first radio frequency module.

10. The dog training system according to claim 9, characterized in that, The audio acquisition module includes a microphone, a bias resistor, an eighth filter capacitor, a ninth filter capacitor, a tenth filter capacitor, a second impedance resistor, and a third signal coupling capacitor. The microphone, the second impedance resistor, and the third signal coupling capacitor are connected in series. One end of the bias resistor is electrically connected to the second power module, and the other end is connected to the second impedance resistor. One end of the eighth filter capacitor is connected to the bias resistor, and the other end is grounded. One end of the ninth filter capacitor is electrically connected to the input terminal of the second impedance resistor, and the other end is grounded. One end of the tenth filter capacitor is electrically connected to the output terminal of the second impedance resistor, and the other end is grounded.

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