Mecanum wheel vehicle based on voice control and control method

Abstract

The invention provides a Mecanum wheel vehicle based on voice control and a control method. The Mecanum wheel vehicle based on voice control comprises a vehicle bottom plate, a motor support, a motor device, four Mecanum wheels, a voice recognition main control board and a power source device. The trolley bottom plate is a rectangular bottom plate with a hole site and a preset size; the motor supports are four U-shaped clamping grooves, vacant positions are formed in the two sides of the four U-shaped clamping grooves, and protrusions are arranged at the tops of the four U-shaped clamping grooves and inserted into the four corners of the trolley bottom plate respectively. The motor device comprises four TT motors, and protrusions are arranged on the two sides of the four TT motors and used for clamping the hole positions of the four U-shaped clamping grooves respectively. The four Mecanum wheels are inserted into rotating shafts of the four TT motors; the voice recognition control mainboard is adhered to the center of the trolley bottom plate through a rubber block; the power supply device is adhered to the center of the rear side of the trolley bottom plate through a rubber block. According to the technical scheme provided by the invention, the movement of the Mecanum wheel vehicle can be realized through voice control.

Description

Technical Field

[0001] This document relates to the field of Mecanum wheel technology, and more particularly to a voice-controlled Mecanum wheel vehicle and a control method. Background Art

[0002] Traditional toy vehicles mostly rely on manual operation or remote control, which limits children's creativity and interactivity during use. With the rapid development of artificial intelligence technology, voice recognition and control technology has gradually been applied to the field of children's toys, adding more intelligent elements to the products. However, most of the voice-controlled toy vehicles on the market currently use ordinary wheels, which makes it difficult to achieve all-round flexible steering and cannot satisfy children's curiosity about complex operations and exploring the unknown. Summary of the invention

[0003] The embodiment of the present invention provides a voice-controlled Mecanum wheel vehicle and a control method. The Mecanum wheel, a special omnidirectional mobile wheel, can realize omnidirectional movement of the vehicle without changing the wheel direction, greatly improving the flexibility and maneuverability of the vehicle. The Mecanum wheel is combined with voice recognition technology to enhance the fun and interactivity of the toy, and cultivate children's logical thinking, spatial imagination and language ability during the play process.

[0004] According to an embodiment of the present invention, a voice-controlled Mecanum wheel vehicle is provided, comprising:

[0005] The trolley bottom plate, motor bracket, motor device, four Mecanum wheels, voice recognition main control board and power supply device; the trolley bottom plate is a rectangular bottom plate with holes of preset size; the motor bracket is four U-shaped slots, and empty spaces are set on both sides of the four U-shaped slots. The tops of the four U-shaped slots are provided with protrusions that are respectively inserted into the four corners of the trolley bottom plate; the motor device is four TT motors, and protrusions are set on both sides of the four TT motors to respectively clamp the holes of the four U-shaped slots; the four Mecanum wheels are plugged into the rotating shafts of the four TT motors; the voice recognition control main board is attached to the center of the trolley bottom plate with a rubber block; the power supply device is attached to the central part of the rear side of the trolley bottom plate with a rubber block.

[0006] According to an embodiment of the present invention, a control method for a voice-controlled Mecanum wheel vehicle is provided, which is applied to the voice-controlled Mecanum wheel vehicle, and is characterized by comprising:

[0007] The voice recognition main control chip receives the voice control command, and generates a driving command and a response signal through a preset intelligent recognition algorithm. The driving command drives the Mecanum wheel vehicle to move, and the response signal is sent through a speaker.

[0008] By adopting the embodiment of the present invention, the voice control mainboard is integrated into the mecanum car, and the control command is recognized by the intelligent algorithm built into the voice control mainboard, so that the movement of the mecanum wheel is controlled by voice. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate one or more embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0010] Figure 1 A structural diagram of a voice-controlled Mecanum wheel vehicle according to an embodiment of the present invention;

[0011] Figure 2 A schematic diagram of a motor bracket according to an embodiment of the present invention;

[0012] Figure 3 This is a front view of a TT motor clamp mounted on a motor bracket according to an embodiment of the present invention;

[0013] Figure 4 A side view of a TT motor clamped on a motor bracket according to an embodiment of the present invention;

[0014] Figure 5 This is a schematic diagram of a Mecanum wheel plugged into a TT motor shaft according to an embodiment of the present invention;

[0015] Figure 6 A schematic diagram of a power supply reverse connection protection circuit according to an embodiment of the present invention;

[0016] Figure 7 A schematic diagram of a motor driving circuit according to an embodiment of the present invention;

[0017] Figure 8 A circuit diagram of a speech recognition main control chip according to an embodiment of the present invention;

[0018] Fig. 9 is a circuit diagram of a power amplifier chip according to an embodiment of the present invention;

[0019] Fig.10 A circuit diagram of a voltage boost chip according to an embodiment of the present invention;

[0020] Description of the accompanying drawings: 1. Motor bracket, 2. Car bottom plate, 3. Motor device, 4. Mecanum wheel, 5. Voice recognition main control board, 6. Speaker, 7. Power supply device, 8. Car head. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below in conjunction with the drawings in one or more embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of them. Based on one or more embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this document.

[0022] Device Embodiment

[0023] According to an embodiment of the present invention, a voice-controlled Mecanum wheel vehicle is provided. Figure 1 The structure diagram of the voice-controlled Mecanum wheel vehicle according to an embodiment of the present invention is shown in FIG. Figure 1 As shown, the voice-controlled Mecanum wheel vehicle according to the embodiment of the present invention specifically includes:

[0024] The trolley bottom plate 2, the motor bracket 1, the motor device 3, the four Mecanum wheels 4, the voice recognition main control board 5 and the power supply device 7; the trolley bottom plate 2 is a rectangular bottom plate with holes of preset size; the motor bracket 1 is four U-shaped slots, and empty spaces are set on both sides of the four U-shaped slots. The tops of the four U-shaped slots are provided with protrusions that are respectively inserted into the four corners of the trolley bottom plate 2; the motor device 3 is four TT motors, and protrusions are set on both sides of the four TT motors to respectively clamp the holes of the four U-shaped slots; the four Mecanum wheels are inserted 4 on the rotating shafts of the four TT motors; the voice recognition control main board 5 is pasted on the center of the trolley bottom plate 2 with a rubber block; the power supply device 7 is pasted on the central part of the rear side of the trolley bottom plate 2 with a rubber block.

[0025] The Knam wheel vehicle further comprises a speaker 6, which is arranged at the front center of the vehicle bottom plate 2 and connected to the voice recognition main control board 5, and is used to make a sound according to the response signal.

[0026] The voice-controlled Mecanum wheel vehicle further comprises a vehicle head 8, which is mounted to the front part of the vehicle bottom plate by screws.

[0027] The power supply device 7 is composed of 3 No. 7 batteries with a working voltage of 4.5V. The power supply voltage of this solution is only 4.5V, which is a safe voltage in accordance with the national standard. The voice control command is recognized by voice recognition technology. The control method is novel and flexible, with good interactivity. The Mecanum wheel is used as the wheel, with various movement methods and high playability.

[0028] The speech recognition main control board 5 specifically includes: a power supply reverse connection protection circuit, a boost circuit, a sound sampling circuit, a speech recognition main control chip and a motor drive circuit. Figure 7 is a schematic diagram of a motor driving circuit according to an embodiment of the present invention, Figure 8 is a circuit diagram of a speech recognition main control chip according to an embodiment of the present invention, Fig. 9 is a circuit diagram of a power amplifier chip according to an embodiment of the present invention, Fig.10 FIG. 4 is a circuit diagram of a voltage boost chip according to an embodiment of the present invention.

[0029] Figure 6 Schematic diagram of a power supply reverse connection protection circuit according to an embodiment of the present invention. Figure 6 It can be seen that the N-channel field effect transistor M1 in the voice recognition main control board and its surrounding resistors R16, R17, R18, and capacitors C26 and C27 form a power reverse connection protection circuit. When the power supply is correctly connected, the voltage divider circuit composed of R16 and R17 provides a conduction voltage for the field effect transistor M1, the GND network and the negative pole of the power supply are connected, and the circuit works normally; when the power supply is reversed, M1 is cut off, the GND network and the negative pole of the power supply are disconnected, and there is no current in the circuit, preventing damage to electronic components caused by reverse power supply.

[0030] Fig.10 The circuit diagram of the boost chip of the embodiment of the present invention is as follows. Fig.10 It can be seen that the boost circuit is composed of boost chip U6, power inductor L1, Schottky diode D2, capacitors C6, C7, and C8, which increases the power supply voltage from below 4.5V and stabilizes it to 5V to power other chips.

[0031] Figure 8 This is a circuit diagram of a voice recognition main control chip of an embodiment of the present invention. The voice recognition main control chip samples the electrical signal sent by the sound sampling circuit to generate a voice control instruction, and generates a drive instruction and a response signal by passing the voice control instruction through a preset intelligent recognition algorithm; the voice control instruction includes a wake-up word and a command word, the wake-up word is used to start the car, and the command word is the movement mode of the Mecanum wheeler, and the command words include forward, backward, turn left, turn right, left translation, right translation, left front, right front, left rear, and right rear.

[0032] Figure 7 The figure is a schematic diagram of a motor drive circuit according to an embodiment of the present invention. The motor drive circuit is connected to four Mecanum wheels, receives the voice drive instruction, and drives the four Mecanum wheels to move.

[0033] The speech recognition main control board further includes: a power amplifier chip, Fig. 9 The circuit diagram of the power amplifier chip of the embodiment of the present invention is used to amplify the response signal sent by the voice recognition main control chip and drive the speaker to generate the response voice. Fig. 9It can be seen that the microphone MK1, resistors R7, R8, R13 and capacitors C21, C22 form a sound sampling circuit, which is used to convert sound into electrical signals and transmit them to the voice recognition main control chip.

[0034] This solution includes a special injection-molded trolley bottom plate, a special injection-molded motor bracket, a voice recognition main control circuit board, a speaker, a battery box, a Mecanum wheel and other plastic structural parts.

[0035] Furthermore, there are many mounting holes on the bottom plate of the special injection molding trolley, which can be adapted to the installation of a variety of parts;

[0036] Furthermore, a special injection-molded motor bracket is provided to fit the mounting holes of the TT motor and the bottom plate of the trolley;

[0037] Furthermore, the car is controlled by voice commands.

[0038] By adopting the embodiment of the present invention, the voice control mainboard is integrated into the mecanum car, and the control command is recognized by the intelligent algorithm built into the voice control mainboard, so that the movement of the mecanum wheel is controlled by voice.

[0039] Method Embodiment

[0040] According to an embodiment of the present invention, a control method of a Mecanum wheel vehicle based on voice control applied to the above-mentioned device embodiment is provided, characterized in that it includes:

[0041] The voice recognition main control chip receives the voice control command, and generates a driving command and a response signal through a preset intelligent recognition algorithm. The driving command drives the Mecanum wheel vehicle to move, and the response signal is sent through a speaker.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A voice-controlled mecanum wheel vehicle, characterized in that include: The car bottom plate, motor bracket, motor device, four Mecanum wheels, voice recognition main control board and power supply device; The bottom plate of the trolley is a rectangular bottom plate with holes of preset sizes; the motor bracket is four U-shaped slots, and empty spaces are set on both sides of the four U-shaped slots. The tops of the four U-shaped slots are set with protrusions that are respectively inserted into the four corners of the bottom plate of the trolley; the motor device is four TT motors, and protrusions are set on both sides of the four TT motors to respectively clamp the holes of the four U-shaped slots; the four Mecanum wheels are plugged into the rotating shafts of the four TT motors; the voice recognition control mainboard is attached to the center of the bottom plate of the trolley with a rubber block; the power supply device is attached to the central part of the rear side of the bottom plate of the trolley with a rubber block.

2. The voice-controlled Mecanum wheel vehicle according to claim 1, characterized in that: The power supply device uses 3 No. 7 batteries Composition, working voltage 4.5V.

3. The voice-controlled Mecanum wheel vehicle according to claim 1, characterized in that: The speech recognition main control board specifically includes: Power reverse connection protection circuit: When the power is correctly connected, the circuit works normally. When the power is reversed, the N-channel field effect transistor is cut off, and the GND network and the negative pole of the power are disconnected to prevent damage to electronic components caused by reverse power connection. The boost circuit is used to increase the voltage of the power supply device from below 4.5V and stabilize it to 5V to supply power to other chips; The sound sampling circuit is used to convert the sound into an electrical signal and transmit it to the speech recognition main control chip; The voice recognition main control chip samples the electrical signal sent by the sound sampling circuit to generate a voice control instruction, and generates a driving instruction and a response signal by passing the voice control instruction through a preset intelligent recognition algorithm; The motor drive circuit is connected to the four Mecanum wheels, receives the voice drive instruction, and drives the four Mecanum wheels to move.

4. The voice-controlled Mecanum wheel vehicle according to claim 3, characterized in that: The voice control instructions include a wake-up word and a command word. The wake-up word is used to start the car, and the command word is the movement mode of the Mecanum wheeler. The command words include forward, backward, turn left, turn right, left translation, right translation, left front, right front, left rear, and right rear.

5. The voice-controlled Mecanum wheel vehicle according to claim 3, characterized in that: The speech recognition main control board further includes: a power amplifier chip for amplifying the response signal generated by the speech recognition main control chip.

6. The voice-controlled Mecanum wheel vehicle according to claim 1, characterized in that: The Knam wheel vehicle further comprises a speaker, which is arranged at the center of the front of the vehicle bottom plate and connected to the voice recognition main control board for making a sound according to the response signal.

7. The voice-controlled Mecanum wheel vehicle according to claim 1, characterized in that: The voice-controlled Mecanum wheel vehicle further comprises a vehicle head, which is mounted to the front part of the vehicle bottom plate by screws.

8. A method for controlling a voice-controlled Mecanum wheel vehicle applied to the voice-controlled Mecanum wheel vehicle according to any one of claims 1 to 7, characterized in that: include: The voice recognition main control board receives the voice control command, and generates a driving command and a response signal through a preset intelligent recognition algorithm. The driving command drives the Mecanum wheel vehicle to move, and the response signal is sent through a speaker.

9. The method according to claim 8, characterized in that The speech recognition main control board specifically includes: Power reverse connection protection circuit: When the power is correctly connected, the circuit works normally. When the power is reversed, the N-channel field effect transistor is cut off, and the GND network and the negative pole of the power are disconnected to prevent damage to electronic components caused by reverse power connection. The boost circuit is used to increase the voltage of the power supply device from below 4.5V and stabilize it to 5V to supply power to other chips; The sound sampling circuit is used to convert the sound into an electrical signal and transmit it to the speech recognition main control chip; The voice recognition main control chip samples the electrical signal sent by the sound sampling circuit to generate a voice control instruction, and generates a driving instruction and a response signal by passing the voice control instruction through a preset intelligent recognition algorithm; The motor drive circuit is connected to the four Mecanum wheels, receives the voice drive instruction, and drives the four Mecanum wheels to move.

10. The method according to claim 8, characterized in that The control method of the voice-controlled Mecanum wheeled vehicle further includes: arranging a speaker at a central position in front of a bottom plate of the vehicle, connected to the voice recognition main control board, for emitting a sound according to the response signal.

Images