An intelligent maintenance auxiliary robot based on voice control

Abstract

This utility model relates to an intelligent maintenance assistance robot based on voice control, including a control module comprising an offline voice module, a main control module, and a drive module. The mobile mechanism includes a walking unit and a steering unit. The walking unit includes a first motor, a rotating shaft, and wheels. Wheels are mounted at both ends of the rotating shaft, which is driven by the first motor. The steering unit includes a swivel wheel and a second motor, which are driven by the swivel wheel, which is rotatably connected to the housing. The main control module is communicatively connected to the offline voice module. The output of the main control module is connected to the input of the drive module, and the output of the drive module is electrically connected to the first motor, the second motor, and multiple electric actuators. This utility model features a mobile chassis, a toolbox, and a control module. The control module is communicatively connected to the offline voice module, enabling voice control of the mobile chassis movement and the toolbox drawer opening, thus improving the toolbox's auxiliary function.

Description

Technical Field

[0001] This utility model relates to the field of maintenance auxiliary tools, specifically to an intelligent maintenance auxiliary robot based on voice control. Background Technology

[0002] When performing equipment maintenance, corresponding maintenance tools are required. In the automotive repair field, for example, to facilitate the storage, organization, and retrieval of automotive repair tools, toolboxes are provided, such as the automotive repair toolbox disclosed in CN214110352U. These toolboxes store automotive repair tools and include a trolley for easy movement. To facilitate the classification of automotive repair tools and improve work efficiency, CN219649870U discloses a device that divides the toolbox into multiple layers, enabling the classified storage of tools.

[0003] The aforementioned products serve the purpose of storage and mobility, but their level of intelligence is low, they are inconvenient to move, and require manual opening of the toolbox. In maintenance environments where operators cannot move the equipment, their auxiliary effect is poor. Summary of the Invention

[0004] To address the problem of poor auxiliary effect of existing toolbox products, this utility model proposes an intelligent maintenance auxiliary robot based on voice control. It is equipped with a mobile chassis, a toolbox, and a control module. The control module is communicatively connected to an offline voice module, which controls the movement of the mobile chassis and the opening of the toolbox drawers through voice commands, thereby realizing voice control and improving the auxiliary effect of the toolbox.

[0005] To achieve the above objectives, a voice-controlled intelligent maintenance assistance robot is proposed, comprising a mobile chassis and a toolbox mounted on the upper part of the mobile chassis. The mobile chassis includes a tray, a housing, and a moving mechanism. The toolbox includes a cabinet and drawers slidably connected to the cabinet. The number of drawers is multiple, and an electric push rod is provided between the multiple drawers and the cabinet. The electric push rod is electrically connected to a control module.

[0006] The control module includes an offline voice module, a main control module, and a driver module;

[0007] The moving mechanism includes a walking unit and a steering unit. The walking unit includes a first motor, a rotating shaft, and wheels. Wheels are provided at both ends of the rotating shaft, and the rotating shaft is drivenly connected to the first motor. The steering unit includes a universal wheel and a second motor. The second motor is drivenly connected to the universal wheel, and the universal wheel is rotatably connected to the housing.

[0008] The main control module is communicatively connected to the offline voice module. The output of the main control module is connected to the input of the drive module. The output of the drive module is electrically connected to the first motor, the second motor, and multiple electric actuators.

[0009] Furthermore, the shell is a cylindrical structure with a hollow interior and an open top. The bottom surface of the shell has a rectangular through hole corresponding to the wheel and a circular through hole corresponding to the omnidirectional wheel.

[0010] The shell is fastened to the tray, and the top of the tray has a placement groove. The placement groove is square in structure, and the cabinet is fixedly installed inside the placement groove. The cabinet is also square in structure.

[0011] The sides of the housing are curved with a large angle to prevent damage from collisions during movement. The housing protects the hardware circuitry and limits the movement of the wheels and casters. The tray has slots for easy assembly with the cabinet.

[0012] Furthermore, the cabinet body has a groove corresponding to the drawer, the drawer is set in the groove, the side wall of the groove is provided with a slide rail, a slider is slidably connected in the slide rail, two sliders are fixed to two sides of the drawer respectively, and an electric push rod is fixed between the side of the slider and the cabinet body.

[0013] The drawer is equipped with slide rails and sliders to support and limit its movement, while also making the drawer slide out more smoothly. To simplify the structure of the equipment, an electric push rod is used to drive the drawer to open and close. The electric push rod has a stable structure and is easy to control by circuit.

[0014] Furthermore, the walking unit also includes a limiting bracket, a first gear and a second gear. The two ends of the rotating shaft are respectively rotatably connected to the limiting bracket through bearings. The limiting bracket is an n-shaped plate, and the bottom end of the limiting bracket is fixed to the bottom surface of the housing.

[0015] A first gear is fixedly mounted on the rotating shaft. The first gear and a second gear are meshed together. The second gear is fixed to the output shaft of the first motor. The first motor is provided with a base and is fixed to the bottom surface of the housing through the base.

[0016] A limit bracket is set to limit the rotation shaft, and a first gear and a second gear are set to realize the transmission between the first motor and the rotation shaft, thereby realizing the movement of the moving mechanism.

[0017] Furthermore, the steering unit also includes a connecting shaft and a reversing gear. The universal wheel is rotatably connected to the housing via a bearing. The connecting shaft is fixedly mounted on the upper end of the universal wheel. The reversing gear includes two meshing bevel gears. One of the two bevel gears is fixed to the connecting shaft, and the other is fixed to the output shaft of the second motor. The second motor is provided with a base, and the second motor is fixed to the bottom surface of the housing via the base.

[0018] The connecting shaft and reversing gear are set up to enable the universal wheel to rotate through the control of the second motor, thereby achieving the steering purpose of the moving mechanism.

[0019] Furthermore, the main control module includes an MCU chip, the drive module includes an L289N drive chip, the output terminal of the MCU chip is connected to the input terminal of the L289N drive chip, and the output terminal of the L289N drive chip is connected to the first motor, the second motor and multiple electric actuators respectively.

[0020] It adopts an embedded system, which has a simple hardware circuit structure, low cost, and is easy to maintain.

[0021] The beneficial effects of this utility model through the above technical solution are as follows:

[0022] This invention provides the hardware foundation for a mobile chassis with voice control and a toolbox that can be opened and closed by voice. It includes a main control module and an offline voice module. The offline voice module collects and converts voice commands and communicates with the main control module. The main control module receives control commands from the offline voice module and controls a first motor via a drive module. This first motor drives the walking unit to move the mobile chassis. The drive module also controls a second motor, which drives the steering unit. Furthermore, the drive module is connected to an electric actuator. After receiving input signals from the offline voice module, the main control module controls the electric actuator, which moves the drawer along slide rails and sliders, enabling voice-activated opening and closing of the drawer for easy tool storage. This system allows operators to work without leaving their workstations, improving the equipment's auxiliary functionality. Attached Figure Description

[0023] Figure 1 This is one of the structural principle diagrams of an intelligent maintenance auxiliary robot based on voice control according to this utility model;

[0024] Figure 2 This is the second structural schematic diagram of an intelligent maintenance auxiliary robot based on voice control according to this utility model;

[0025] Figure 3 This is the third structural schematic diagram of an intelligent maintenance auxiliary robot based on voice control according to this utility model;

[0026] Figure 4 This is the fourth structural schematic diagram of an intelligent maintenance auxiliary robot based on voice control according to this utility model;

[0027] Figure 5 This is the electrical schematic diagram of an intelligent maintenance assistance robot based on voice control according to this utility model.

[0028] The reference numerals are as follows: 1 is the tray, 2 is the housing, 3 is the cabinet, 4 is the drawer, 5 is the electric push rod, 6 is the offline voice module, 7 is the main control module, 8 is the drive module, 9 is the first motor, 10 is the rotating shaft, 11 is the wheel, 12 is the caster wheel, 13 is the second motor, 14 is the slide rail, 15 is the slider, 16 is the connecting shaft, 17 is the reversing gear, and 18 is the distance sensor. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: Example

[0030] like Figures 1-5 The present invention discloses an intelligent maintenance auxiliary robot based on voice control, comprising a mobile chassis and a toolbox disposed on the upper part of the mobile chassis. The mobile chassis includes a tray 1, a housing 2 and a moving mechanism. The toolbox includes a cabinet 3 and drawers 4 slidably connected to the cabinet 3. There are multiple drawers 4. An electric push rod 5 is disposed between the multiple drawers 4 and the cabinet 3. The electric push rod 5 is electrically connected to a control module.

[0031] The control module includes an offline voice module 6, a main control module 7, and a driver module 8;

[0032] The moving mechanism includes a walking unit and a steering unit. The walking unit includes a first motor 9, a rotating shaft 10, and wheels 11. Wheels 11 are provided at both ends of the rotating shaft 10. The rotating shaft 10 is drivenly connected to the first motor 9. The steering unit includes a universal wheel 12 and a second motor 13. The second motor 13 is drivenly connected to the universal wheel 12. The universal wheel 12 is rotatably connected to the housing 2.

[0033] The main control module 7 is communicatively connected to the offline voice module 6. The output of the main control module 7 is connected to the input of the drive module 8. The output of the drive module 8 is electrically connected to the first motor 9, the second motor 13, and multiple electric push rods 5.

[0034] The housing 2 is a cylindrical structure that is hollow inside and open at the top. The bottom surface of the housing 2 has a rectangular through hole corresponding to the wheel 11 and a circular through hole corresponding to the universal wheel 12.

[0035] The housing 2 is fastened to the tray 1. The top of the tray 1 has a placement groove, which is square in structure. The cabinet 3 is fixedly installed in the placement groove, and the cabinet 3 is also square in structure.

[0036] The cabinet body 3 has a groove corresponding to the drawer 4, the drawer 4 is set in the groove, the side wall of the groove is provided with a slide rail 14, and a slider 15 is slidably connected in the slide rail 14. The two sliders 15 are respectively fixed to the two sides of the drawer 4, and an electric push rod 5 is fixed between the side of the slider 15 and the cabinet body 3.

[0037] The walking unit also includes a limiting bracket, a first gear and a second gear. The two ends of the rotating shaft 10 are respectively rotatably connected to the limiting bracket through bearings. The limiting bracket is an n-shaped plate, and the bottom end of the limiting bracket is fixed to the bottom surface of the housing 2.

[0038] A first gear is fixedly mounted on the rotating shaft 10. The first gear and a second gear are meshed together. The second gear is fixed to the output shaft of the first motor 9. The first motor 9 is provided with a base and is fixed to the bottom surface of the housing 2 through the base.

[0039] The steering unit also includes a connecting shaft 16 and a reversing gear 17. The universal wheel 12 is rotatably connected to the housing 2 through a bearing. The connecting shaft 16 is fixedly installed at the upper end of the universal wheel 12. The reversing gear 17 includes two meshing bevel gears. One of the two bevel gears is fixed to the connecting shaft 16, and the other is fixed to the output shaft of the second motor 13. The second motor 13 is provided with a base, and the second motor 13 is fixed to the bottom surface of the housing 2 through the base.

[0040] The main control module 7 includes an MCU chip, and the drive module 8 includes an L289N drive chip. The output terminal of the MCU chip is connected to the input terminal of the L289N drive chip, and the output terminal of the L289N drive chip is connected to the first motor 9, the second motor 13, and multiple electric actuators 5, respectively.

[0041] In this embodiment, both the first motor 9 and the second motor 13 are servo motors. The MCU chip is an STM32 microcontroller. A power supply, including a charging circuit and a battery, is located inside the housing 1. A charging port is provided on the housing 1 corresponding to the charging circuit. The L289N driver chip has a forward / reverse circuit. The main control module 7 controls the diodes in the forward / reverse circuit of the L289N driver chip to change the direction of the first motor 9 and the second motor 13. The offline voice control module 6 is an SU-03T module, which communicates with the main control module 7 via a UART serial port. There are three drawers 4: drawer A, drawer B, and drawer C. The SU-03T module can store multiple voice commands such as "start working, forward, backward, turn left, turn right, stop working, and open drawer A, close drawer A, open drawer B, close drawer B and open drawer C, close drawer C". The MCU chip input terminal is connected to multiple ranging sensors 18, which are specifically ultrasonic ranging sensors. Multiple ranging sensors 18 are equidistantly arranged along the circumference of the surface of the housing 2. The ranging sensors 18 are used to detect the distance between the housing 2 and the obstacle.

[0042] For ease of understanding, the voice-controlled mobile chassis will be described based on the hardware circuit of this application:

[0043] During operation, the user gives the command to start working. The microphone of the SU-03T module converts the sound signal into an electrical signal. The offline voice control module 6 outputs a command to the main control module 7, and the main control module 7 starts working. Next, the user gives any command to move forward, backward, turn left, or turn right. For example, moving forward, the main control module 7 controls the drive module 8 to power on the first motor 9. The first motor 9 rotates forward, and through the second gear, it drives the first gear to rotate, which in turn drives the wheel 11 through the shaft 10, moving the chassis forward. When the user gives the command to move backward, the operation of the moving mechanism is the same as moving forward, except that when the main control module 7 receives the backward command, it controls the drive module 8 to reverse the first motor 9.

[0044] When the user says "turn left," the main control module 7 controls the drive module 8 to power on the second motor 13. The second motor 13 deflects, which in turn drives the universal wheel 12 to deflect to the left through the reversing gear 10 and the connecting shaft 9. The deflection of the universal wheel 12 to the left causes the entire mobile chassis to turn to the left.

[0045] When the user says "turn right," the steering mechanism operates in the same way as when turning left. The difference is that when the main control module 7 receives the right turn command, it controls the drive module 8 to reverse the second motor 13.

[0046] Taking auto repair as an example, different tools are placed in drawers A, B, and C. For example, drawer A contains a wrench, drawer B contains an electric drill, and drawer C contains a screwdriver. When the user says "open drawer A," the main control module 7 extends the electric push rod 5 connected to drawer A via the drive module 8. The electric push rod 5 pushes the drawer A and its connecting slider 15 to move on the slide rail 14, opening drawer A. The worker then takes out the wrench. Next, the user says "close drawer A," and the main control module 7 retracts the electric push rod 5 connected to drawer A via the drive module 8. The electric push rod 5 pulls the drawer A and its connecting slider 15 to move on the slide rail 14, closing drawer A.

[0047] The operating procedures for drawers B and C are the same as for drawer A, and will not be repeated here. Staff only need to store tools according to the fixed placement categories to avoid rummaging through them.

[0048] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A voice-controlled intelligent maintenance assistance robot, comprising a mobile chassis and a toolbox mounted on the upper part of the mobile chassis, wherein the mobile chassis includes a tray (1), a shell (2), and a moving mechanism, characterized in that, The toolbox includes a cabinet (3) and drawers (4) slidably connected to the cabinet (3). There are multiple drawers (4), and electric push rods (5) are provided between the multiple drawers (4) and the cabinet (3). The electric push rods (5) are electrically connected to a control module. The control module includes an offline voice module (6), a main control module (7), and a driver module (8). The moving mechanism includes a walking unit and a steering unit. The walking unit includes a first motor (9), a rotating shaft (10), and wheels (11). Wheels (11) are provided at both ends of the rotating shaft (10). The rotating shaft (10) is connected to the first motor (9) in a transmission connection. The steering unit includes a universal wheel (12) and a second motor (13). The second motor (13) is connected to the universal wheel (12) in a transmission connection. The universal wheel (12) is rotatably connected to the housing (2). The main control module (7) is connected to the offline voice module (6) for communication. The output end of the main control module (7) is connected to the input end of the drive module (8). The output end of the drive module (8) is electrically connected to the first motor (9), the second motor (13) and multiple electric push rods (5).

2. The intelligent maintenance assistance robot based on voice control according to claim 1, characterized in that, The shell (2) is a cylindrical structure with a hollow interior and an open top. The bottom surface of the shell (2) has a rectangular through hole corresponding to the wheel (11) and a circular through hole corresponding to the universal wheel (12). The shell (2) is fastened to the tray (1). The top of the tray (1) has a placement groove. The placement groove is square in structure. The cabinet (3) is fixedly installed in the placement groove. The cabinet (3) is square in structure.

3. The intelligent maintenance assistance robot based on voice control according to claim 1, characterized in that, The cabinet (3) has a groove corresponding to the drawer (4), the drawer (4) is set in the groove, the side wall of the groove is provided with a slide rail (14), and a slider (15) is slidably connected in the slide rail (14). The two sliders (15) are fixed to the two sides of the drawer (4) respectively, and an electric push rod (5) is fixed between the side of the slider (15) and the cabinet (3).

4. The intelligent maintenance assistance robot based on voice control according to claim 2, characterized in that, The walking unit also includes a limiting bracket, a first gear and a second gear. The two ends of the rotating shaft (10) are respectively connected to the limiting bracket through bearings. The limiting bracket is an n-shaped plate, and the bottom end of the limiting bracket is fixed to the bottom surface of the housing (2). A first gear is fixedly mounted on the rotating shaft (10). The first gear and the second gear mesh with each other. The second gear is fixed to the output shaft of the first motor (9). The first motor (9) is provided with a base. The first motor (9) is fixed to the bottom surface of the housing (2) through the base.

5. The intelligent maintenance assistance robot based on voice control according to claim 2, characterized in that, The steering unit also includes a connecting shaft (16) and a reversing gear (17). The universal wheel (12) is rotatably connected to the housing (2) through a bearing. The connecting shaft (16) is fixedly installed at the upper end of the universal wheel (12). The reversing gear (17) includes two meshing bevel gears. One of the two bevel gears is fixed to the connecting shaft (16), and the other is fixed to the output shaft of the second motor (13). The second motor (13) is provided with a base, and the second motor (13) is fixed to the bottom surface of the housing (2) through the base.

6. The intelligent maintenance assistance robot based on voice control according to claim 1, characterized in that, The main control module (7) includes an MCU chip, and the drive module (8) includes an L289N drive chip. The output terminal of the MCU chip is connected to the input terminal of the L289N drive chip, and the output terminal of the L289N drive chip is connected to the first motor (9), the second motor (13), and multiple electric push rods (5) respectively.

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