Intelligent curtain control device and load drive control method

Abstract

The invention discloses an intelligent curtain control device and a load drive control method, comprising a curtain drive motor, a guide rail, a load body for hanging curtains and a controller for controlling the curtain drive motor, wherein the load body and the guide rail are arranged to slide relative to each other, the curtain drive motor drives the load body to slide along the guide rail, the controller comprises a control module, a motor output module and a feedback module, the control module is electrically connected to the motor output module, the motor output module is electrically connected to the feedback module, and the feedback module is electrically connected to the control module; a control system is adopted to perform intelligent control on the curtain motor, the feedback module and the control module cooperate to control the voltage flowing to the motor output module, thereby realizing accurate control of the output torque of the curtain motor and saving power resources.

Description

Technical Field

[0001] The present invention relates to the technical field of smart curtain technology, and in particular to a smart curtain control device and a load drive control method. Background Art

[0002] Curtains are daily necessities with the functions of sunshade, heat insulation and indoor light adjustment. Existing curtains are often manually pulled to achieve the above functions, but with the progress of society and economic development, electric curtains that are more adaptable to the needs of modern people have been developed. The principle is to use a motor to pull or push the curtains to move on the slide rails, but most of the existing curtain motors use fixed torque motors. In this case, it is difficult to select a motor that meets the torque. If a motor with a smaller torque is selected, the motor load will be too large, burning the motor or the motor will not be able to run. If a motor with a larger torque is selected, it is easy to cause a waste of resources, so it is necessary to improve it. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an intelligent curtain control device and a load drive control method, which can accurately control the output torque of the curtain motor and save power resources.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an intelligent curtain control device, including a curtain driving motor, a guide rail, a load body for hanging curtains and a controller for controlling the curtain driving motor, the load body and the guide rail are arranged to slide relative to each other, the curtain driving motor drives the load body to slide along the guide rail, the controller includes a control module, a motor output module and a feedback module, the control module is electrically connected to the motor output module, the motor output module is electrically connected to the feedback module, and the feedback module is electrically connected to the control module.

[0005] In a further technical solution, the motor output module is provided with a feedback circuit, the feedback module is provided with an AD capture interface, and the input end of the feedback circuit is electrically connected to the AD capture interface.

[0006] In a further technical solution, the control module is provided with a pulse width modulation circuit, and a voltage output end of the pulse width modulation circuit is connected to the motor output module.

[0007] In a further technical solution, the control module includes a single-chip microcomputer, the feedback module is connected to a data input terminal of the single-chip microcomputer, and a data output terminal of the single-chip microcomputer is connected to the motor output module.

[0008] A load drive control method for an intelligent curtain control device, comprising:

[0009] S1. The control module controls the motor output module to output an initial driving voltage to the curtain driving motor to drive the curtain driving motor to operate and pull the load body to move along the guide rail.

[0010] S2. When the load moves along the guide rail, friction force is generated. Under the interaction of torque and friction resistance, the curtain drive motor generates feedback current, which is received by the AD capture interface of the feedback module.

[0011] S3. After receiving the feedback current, the feedback module obtains the corresponding value through AD logic conversion, and then transmits the numerical signal to the control module.

[0012] S4. After receiving the numerical signal, the control module calculates the torque required to pull the carrier according to the built-in logic algorithm.

[0013] S5. According to the required output torque, the duty cycle of the pulse width is adjusted through the pulse width modulation circuit, thereby adjusting the voltage value output by the motor output module to the curtain drive motor.

[0014] After adopting the above structure, the advantages of the present invention compared with the prior art are: the present invention adopts a control system to perform intelligent control on the curtain motor, and the feedback module and the control module cooperate to control the voltage flowing to the motor output module, thereby achieving precise control of the output torque of the curtain motor and saving electricity resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a module schematic diagram of the present invention.

[0017] Figure 2 It is a schematic diagram of the relationship between the feedback current of the present invention and the load weight of the curtain itself.

[0018] Figure 3 It is a schematic diagram of the relationship between the torque output by the curtain motor of the present invention and the load weight of the curtain itself.

[0019] Figure 4 It is a schematic diagram of the relationship between the torque output by the curtain motor of the present invention and the pulse width modulation circuit.

[0020] Figure 5 It is a schematic diagram of the relationship between the load weight of the curtain itself and the voltage transmitted to the curtain motor by the motor transmission module of the present invention.

[0021] Figure 6 It is a schematic diagram of the algorithm logic of the present invention.

[0022] In the figure: 10. Control module; 20. Feedback module; 30. Motor output module. DETAILED DESCRIPTION

[0023] The following are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

[0024] Please refer to Figure 1-6 As shown, an intelligent curtain control device includes a curtain drive motor, a guide rail, a load body for hanging curtains, and a controller for controlling the curtain drive motor. The load body and the guide rail are arranged to slide relative to each other. The curtain drive motor drives the load body to slide along the guide rail. The controller includes a control module 10, a motor output module 30, and a feedback module 20. The control module 10 is electrically connected to the motor output module 30, the motor output module 30 is electrically connected to the feedback module 20, and the feedback module 20 is electrically connected to the control module 10. The motor output module 30 outputs a certain current and voltage to the curtain motor to drive the curtain motor to pull the curtain. At the moment when the curtain motor pulls the curtain, a feedback current is generated. The feedback current is captured by the feedback module 20 to form a feedback signal and sent to the control module 10. The control module 10 controls the motor output module 30 according to the feedback signal, and then adjusts the voltage of the curtain motor to achieve the best working state of the curtain motor and save power resources.

[0025] The motor output module 30 is provided with a feedback circuit, the feedback module 20 is provided with an AD capture interface, and the input end of the feedback circuit is electrically connected to the AD capture interface; the control module 10 is provided with a pulse width modulation circuit, and the voltage output end of the pulse width modulation circuit is connected to the motor output module 30; the control module 10 includes a single-chip microcomputer, the feedback module 20 is connected to the data input end of the single-chip microcomputer, and the data output end of the single-chip microcomputer is connected to the motor output module 30. A single-chip microcomputer is used as the control module 10, and a pulse width modulation circuit and a voltage output calculation program are provided on the single-chip microcomputer. The feedback module 20 is provided at the input end of the single-chip microcomputer, and the input end entering the single-chip microcomputer is an AD capture interface. When the curtain motor is working, the current captured by the feedback module 20 is converted into a corresponding value through AD logic. The weight is determined according to the current and load weight curve, and the required torque is calculated according to the corresponding relationship curve between torque and resistance. The required driving voltage is calculated according to the relationship curve between torque and driving voltage. The driving voltage is controlled by a pulse width modulation circuit generated by the single-chip microcomputer. By adjusting the duty cycle of the pulse width modulation circuit, the corresponding voltage is output. The motor rotates under the corresponding driving voltage, driving the curtain to move and open and close. At the same time, there will be changes in resistance during operation, and the motor logic will execute the judgment to adjust the driving voltage in a loop.

[0026] A load drive control method for an intelligent curtain control device, comprising:

[0027] S1. The control module 10 controls the motor output module 20 to output an initial driving voltage to the curtain driving motor, so as to drive the curtain driving motor to operate and pull the load to move along the guide rail.

[0028] S2. When the load moves along the guide rail, friction force is generated. Under the interaction of torque and friction resistance, the curtain drive motor generates feedback current, which is received by the feedback module 20AD capture interface.

[0029] S3. After receiving the feedback current, the feedback module 20 obtains the corresponding value through AD logic conversion, and then transmits the value signal to the control module 10.

[0030] S4. After receiving the numerical signal, the control module 10 calculates the torque required to pull the carrier according to the built-in logic algorithm.

[0031] S5. According to the required output torque, the duty cycle of the pulse width is adjusted through the pulse width modulation circuit, thereby adjusting the voltage value output by the motor output module 30 to the curtain driving motor.

[0032] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A load drive control method for an intelligent curtain control device, characterized in that: The intelligent curtain control device comprises a curtain drive motor, a guide rail, a load body for hanging curtains and a controller for controlling the curtain drive motor. The load body and the guide rail are arranged to slide relative to each other. The curtain drive motor drives the load body to slide along the guide rail. The controller comprises a control module (10), a motor output module (30) and a feedback module (20). The control module (10) is electrically connected to the motor output module (30), the motor output module (30) is electrically connected to the feedback module (20), and the feedback module (20) is electrically connected to the control module (10). The motor output module (30) is provided with a feedback circuit, the feedback module (20) is provided with an AD capture interface, and the input end of the feedback circuit is electrically connected to the AD capture interface. The control module (10) is provided with a pulse width modulation circuit, and the voltage output end of the pulse width modulation circuit is connected to the motor output module (30). The device comprises: S1. The control module (10) controls the motor output module (30) to output an initial driving voltage to the curtain drive motor to drive the curtain drive motor to operate and pull the load body to move along the guide rail; S2. When the load moves along the guide rail, friction is generated. Under the interaction of torque and friction resistance, the curtain drive motor generates a feedback current, which is received by the feedback module (20) AD capture interface; S3. After receiving the feedback current, the feedback module (20) obtains the corresponding value through AD logic conversion, and then transmits the numerical signal to the control module (10); S4. After receiving the numerical signal, the control module (10) calculates the torque required to pull the carrier according to the built-in logic algorithm; S5. According to the required output torque, the duty cycle of the pulse width is adjusted through the pulse width modulation circuit, thereby adjusting the voltage value output by the motor output module (30) to the curtain drive motor.

2. The load drive control method of the intelligent curtain control device according to claim 1, characterized in that: The control module (10) comprises a single-chip microcomputer, the feedback module (20) is connected to a data input terminal of the single-chip microcomputer, and the data output terminal of the single-chip microcomputer is connected to the motor output module (30).

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