Direct current motor control device

Abstract

The utility model relates to a direct current motor control device which comprises a circuit board. The circuit board is provided with an IIC address switching module, an IIC interface module, a steering engine driving module, a GPIO input module, a GPIO safety lock module, a control switching module, a first steering engine control output module, a second steering engine control output module, a motor driving input module, a motor driving module and a motor control output module. The IIC address switching module and the IIC interface module are connected with the steering engine driving module, the output of the IIC address switching module and the IIC interface module is divided into two parts which are respectively connected with the control switching module and the second steering engine control output module, the GPIO input module is connected with the GPIO safety lock module, the output of the GPIO input module is connected with the control switching module, and the output of the control switching module is connected with the first steering engine control output module; and the motor driving input module is connected with the motor control output module through the motor driving module. The device integrates the functions of steering engine debugging, common direct current motor debugging and driving control, and is rich in function, large in control quantity and simple in debugging operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of DC motor control device. BACKGROUND

[0002] In the existing motor control device, often only control steering gear or ordinary DC motor can be controlled, and the control quantity is limited, which cannot meet the needs in complex application scenarios. At the same time, during debugging, the control device needs to be frequently replaced or the wiring needs to be adjusted, which is tedious and inefficient. In particular, when using a single-chip microcomputer (or other controller) to control a large number of motors, if you want to switch the control mode, you need to perform multiple line plugging operations, which not only reduces the development efficiency, but also greatly increases the failure rate. Therefore, a motor control device that can control multiple motors simultaneously and has high integration and scalability is needed. SUMMARY

[0003] The purpose of the present application is to provide a DC motor control device that integrates steering gear debugging, ordinary DC motor debugging and driving control functions, has rich functions, controls a large number of motors and is easy to debug and operate.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows: a DC motor control device, comprising a circuit board, wherein the circuit board is provided with an IIC address switching module, an IIC interface module, a steering gear driving module, a GPIO input module, a GPIO safety lock module, a control switching module, a first steering gear control output module, a second steering gear control output module, a motor driving input module, a motor driving module and a motor control output module; the IIC address switching module and the IIC interface module are connected with the steering gear driving module respectively, the output of the steering gear driving module is divided into two parts and connected with the switching switch on the control switching module and the second steering gear control output module respectively, the GPIO input module is connected with the GPIO safety lock module, and the output of the GPIO safety lock module is also connected with the switching switch on the control switching module to switch the connection with the steering gear driving module or the GPIO safety lock module through the control switching module, and the output of the control switching module is connected with the first steering gear control output module; the motor driving input module is connected with the motor control output module through the motor driving module.

[0005] Further, the steering gear driving module is implemented by using a PCA9685 steering gear driving chip.

[0006] Further, the control switching module has an 8-way switching switch, the 8-way switching switch is linked with each other, the first steering wheel control output module and the second steering wheel control output module have 8-way steering wheel control output interfaces respectively; the steering wheel driving module has 16-way outputs and is divided into two parts, 8-way outputs are directly connected to the second steering wheel control output module, and the other 8-way outputs are connected to the first selection station of the 8-way switching switch on the control switching module; the GPIO safety lock module has 8-way outputs, and the 8-way outputs are connected to the second selection station of the 8-way switching switch on the control switching module; the 8-way outputs of the control switching module are connected to the first steering wheel control output module.

[0007] Further, the motor driving module adopts four L9110S motor driving chips to realize the connection and driving of four motors.

[0008] Further, the IIC address switching module realizes IIC address expansion by using a dial switch to support the cascade control of multiple devices.

[0009] Further, the circuit board is provided with an expansion input module and a steering wheel control expansion output module, and the expansion input module is connected with the steering wheel control expansion output module.

[0010] Further, the circuit board is provided with a device power supply.

[0011] Further, the circuit board is provided with a steering wheel power supply to supply power to the steering wheel through the first steering wheel control output module and the second steering wheel control output module.

[0012] Compared with the prior art, the direct current motor control device has the following beneficial effects: the direct current motor control device integrates the steering wheel debugging and ordinary direct current motor debugging functions, improves the integration of the motor control device, solves the problems of single function, limited control quantity and complicated debugging operation in the prior art, can realize the control of multiple direct current motors, simplifies the debugging operation, improves the development efficiency, can be widely applied to the direct current motor debugging process in the embedded system development process, has strong practicability and broad application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a circuit principle block diagram of the direct current motor control device of the embodiment of the application;

[0014] Figure 2 is a circuit diagram of the direct current motor control device of the embodiment of the application. DETAILED DESCRIPTION

[0015] The application will be further described below in combination with the drawings and embodiments.

[0016] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0018] like Figure 1 As shown, this embodiment provides a DC motor control device, including a circuit board. The circuit board is equipped with an IIC address switching module 1, an IIC interface module 2, a servo drive module 3, a GPIO input module 4, a GPIO safety lock module 5, a control switching module 6, a first servo control output module 7, a second servo control output module 8, a motor drive input module 9, a motor drive module 10, and a motor control output module 11. The IIC address switching module 1 and the IIC interface module 2 are respectively connected to the servo drive module 3. The output of the servo drive module 3 is divided into two parts, connected to a switch on the control switching module 6 and the second servo control output module 8, respectively. The GPIO input module 4 is connected to the GPIO safety lock module 5, and the output of the GPIO safety lock module 5 is also connected to a switch on the control switching module 6, allowing switching between the servo drive module and the GPIO safety lock module via the control switching module. The output of the control switching module 6 is connected to the first servo control output module 7. The motor drive input module 9 is connected to the motor control output module 11 via the motor drive module 10.

[0019] like Figure 2 As shown, in this embodiment, the servo drive module is implemented using the PCA9685 servo drive chip. The control switching module has 8-way switches, which are interconnected. The first servo control output module and the second servo control output module each have 8 servo control output interfaces. The servo drive module has 16 outputs divided into two parts, with 8 outputs directly connected to the second servo control output module and the other 8 outputs connected to the first selection position of the 8-way switches on the control switching module. The GPIO safety lock module has 8 outputs, which are connected to the second selection position of the 8-way switches on the control switching module. The 8 outputs of the control switching module are connected to the first servo control output module.

[0020] In the embodiment, the motor drive module is realized by using four separately designed L9110S motor drive chips, four motors can be connected and driven at the same time, and the demand of flexible control of multi-motor control system is met.

[0021] The device integrates the functions of servo debugging and ordinary DC motor debugging (integrates two kinds of driving chips PCA9685 and L9110S), realizes unified control and management of two different types of motors, simplifies the operation process and improves the work efficiency. Among them, the servo drive module can simultaneously connect 16 servos, and the driving mode of 8 servos can be switched between the single-chip microcomputer and the on-board drive by one key (using the design of multi-control switch), which enhances the flexibility and adaptability of the system. The single-chip microcomputer (or other controller) can simultaneously drive 8-way servos, and set a safety lock through the GPIO port (using the design of dial switch), which effectively prevents the single-chip microcomputer and the on-board servo drive from working at the same time, and avoids potential conflicts and damage.

[0022] In the embodiment, the IIC address switching module realizes IIC address expansion by using a dial switch, and the IIC address of the device can be flexibly set; up to 62 devices can be cascaded, so that up to 992 servos can be controlled in theory, which meets the high demand of large-scale automation system for the number of servos.

[0023] In the embodiment, the circuit board is provided with an expansion input module 12 and a servo control expansion output module 13, and 2-way servo expansion interfaces are reserved (using a direct connection design), the expansion input module 12 is connected with the servo control expansion output module 13, which facilitates users to expand functions according to actual needs, and improves the versatility and expandability of the device.

[0024] In the embodiment, the circuit board is separately provided with a device power supply 14 and a servo power supply 15, and the servo power supply supplies power to the servos through the first servo control output module and the second servo control output module. That is, the device is separately designed for servo power supply and ordinary DC motor power supply, which can meet the specific needs of different types of motors for power supply, thereby improving the efficiency and stability of the control device.

[0025] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments. However, any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the present application.

Claims

1. A DC motor control device comprising a circuit board, characterized by, The circuit board is provided with an IIC address switching module, an IIC interface module, a servo drive module, a GPIO input module, a GPIO safety lock module, a control switching module, a first servo control output module, a second servo control output module, a motor drive input module, a motor drive module and a motor control output module; the IIC address switching module and the IIC interface module are connected with the servo drive module respectively, the output of the servo drive module is divided into two parts and connected with the switching switch on the control switching module and the second servo control output module respectively, the GPIO input module is connected with the GPIO safety lock module, the output of the GPIO safety lock module is also connected with the switching switch on the control switching module, so as to switch the connection with the servo drive module or the GPIO safety lock module through the control switching module, and the output of the control switching module is connected with the first servo control output module; the motor drive input module is connected with the motor control output module through the motor drive module.

2. A DC motor control apparatus according to claim 1, wherein The servo drive module adopts a PCA9685 servo drive chip.

3. A DC motor control apparatus according to claim 1, wherein The control switching module has 8 switching switches, the 8 switching switches are interconnected, the first servo control output module and the second servo control output module each have 8 servo control output interfaces; the servo drive module has 16 outputs and is divided into two parts, 8 outputs of which are directly connected with the second servo control output module, and the other 8 outputs are connected with the first selection station of the 8 switching switches on the control switching module; The GPIO safety lock module has 8 outputs, the 8 outputs are connected with the second selection station of the 8 switching switches on the control switching module; and the 8 outputs of the control switching module are connected with the first servo control output module.

4. A DC motor control apparatus according to claim 1, wherein The motor drive module adopts 4 L9110S motor drive chips to simultaneously connect and drive 4 motors.

5. A DC motor control apparatus according to claim 1, wherein The IIC address switching module adopts a dial switch to realize IIC address expansion, so as to support cascade control of multiple devices.

6. A DC motor control apparatus according to claim 1, wherein The circuit board is provided with an expansion input module and a servo control expansion output module, and the expansion input module is connected with the servo control expansion output module.

7. A DC motor control apparatus as claimed in claim 1, wherein The circuit board is provided with a device power supply.

8. A DC motor control apparatus as claimed in claim 1, wherein The circuit board is provided with a servo power supply to supply power for the servo through the first servo control output module and the second servo control output module.

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