Intelligent control circuit suitable for curtain

Abstract

The utility model relates to the technical field of intelligent curtains, in particular to an intelligent control circuit suitable for a curtain, which comprises a main board master control single chip microcomputer, an auxiliary board master control single chip microcomputer, a brush direct current motor driving chip, a brush direct current motor, a wireless receiver, a WI-FI network protocol Bluetooth module and a power supply voltage reduction processor, the power supply step-down processor comprises a transformer and a step-down transformer, the transformer is electrically connected with the step-down transformer and the brush motor driving chip, the circuit takes the main board main control single-chip microcomputer and the auxiliary board main control single-chip microcomputer as the core, accurate opening, closing and adjusting of the curtain are achieved through accurate control signals and the motor driving technology, the control efficiency and accuracy are improved, and the control cost is reduced. The main board main control single-chip microcomputer is responsible for receiving and processing various control signals, instructions are sent to the brush direct current motor driving chip through the motor driving pin, flexible adjustment of the rotating speed and the direction of the motor is achieved, and different requirements for opening and closing of the curtain are met.

Description

Technical Field

[0001] This utility model relates to the field of smart curtain technology, specifically to a smart control circuit for curtains. Background Technology

[0002] With the rapid advancement of technology and the booming development of smart home technology, people have placed higher demands on the convenience and intelligence of their home life. Traditional manual or simple electric curtains, due to their limited functionality and cumbersome operation, are gradually failing to meet modern users' pursuit of a high-quality life. Against this backdrop, intelligent curtain control systems have emerged, aiming to provide users with a more convenient and intelligent curtain control experience through advanced technology.

[0003] However, although some smart curtain control systems have emerged on the market, they still have many shortcomings in meeting user needs, specifically in the following aspects:

[0004] Single function:

[0005] Many smart curtain systems on the market today can only perform basic opening and closing operations, lacking richer and more diverse functions. For example, they often do not support remote control, making it impossible for users to conveniently control the opening and closing of the curtains when they are out or away from home; at the same time, these systems also lack the function of automatic scene setting, and cannot automatically adjust the state of the curtains according to ambient light, time, or user habits, thus reducing the convenience and intelligence level of use.

[0006] Poor user experience:

[0007] Some smart curtain systems fail to adequately consider user experience during design, making it difficult for users to instantly understand the curtains' status. These systems often lack intuitive status feedback mechanisms, such as indicator lights, displays, or mobile app notifications, leaving users without clear feedback and confirmation when operating the curtains, thus reducing user satisfaction and convenience.

[0008] Insufficient stability:

[0009] Stability is a crucial factor in the design of smart curtain systems. However, some existing systems have inadequate power management designs, which can lead to malfunctions during prolonged use or under voltage fluctuations. For example, unstable power supply step-down processing and inaccurate motor drive control can affect the normal operation of the curtains and even pose safety hazards. These issues not only impact the user experience but also reduce the system's reliability and durability.

[0010] Poor scalability:

[0011] As user needs continue to evolve and upgrade, the scalability of smart curtain systems becomes particularly important. However, the hardware design of existing systems is often relatively fixed, making it difficult to flexibly expand or upgrade functions according to user needs. This means that users may face functional limitations after purchase, unable to customize or optimize the system according to actual needs, thus limiting the application potential and market competitiveness of smart curtain systems. Utility Model Content

[0012] (a) Technical problems to be solved

[0013] To address the shortcomings of existing technologies, this utility model provides a smart control circuit for curtains.

[0014] (II) Technical Solution

[0015] To achieve the above objectives, this utility model provides the following technical solution: A smart control circuit for curtains according to this utility model includes a mainboard microcontroller, a secondary board microcontroller, a brushed DC motor driver chip, a brushed DC motor, a wireless receiver, a Wi-Fi network protocol Bluetooth module, and a power supply step-down processor. The power supply step-down processor includes a transformer and a step-down converter. The transformer is electrically connected to the step-down converter and the brushed motor driver chip. The step-down converter is coupled to the mainboard microcontroller and the brushed DC motor driver chip through a Hall effect circuit. The step-down converter is electrically connected to the secondary board microcontroller, the wireless receiver, and the Wi-Fi network protocol Bluetooth module. The brushed DC motor is coupled to both the mainboard microcontroller and the secondary board microcontroller through a drive circuit. The mainboard microcontroller and the secondary board microcontroller are interconnected. The secondary board microcontroller is interconnected with the Wi-Fi network protocol Bluetooth module. The secondary board microcontroller is electrically connected to the wireless receiver.

[0016] Preferably, the transformer is a 12V transformer, and the step-down converter includes a 5V step-down output port and a 3V step-down output port.

[0017] More preferably, the 5V step-down output port of the step-down transformer is coupled to the main control microcontroller of the motherboard and the brushed DC motor driver chip through a Hall effect circuit, and the 3V step-down output port of the step-down transformer is electrically connected to the main control microcontroller of the secondary board, the wireless receiver, and the Bluetooth module of the WI-FI network protocol.

[0018] Preferably, the mainboard microcontroller is equipped with a ground pin, a power input pin, a microcontroller debugging pin, a motor drive pin, a motor drive current detection pin, a secondary board main control microcontroller serial connection pin, a motor operating status detection pin, and a power detection pin, wherein at least two of each of the microcontroller debugging pin, motor drive pin, secondary board main control microcontroller serial connection pin, and motor operating status detection pin are provided.

[0019] Preferably, the secondary board main control microcontroller is equipped with a ground pin, a power input pin, a command input pin, a microcontroller debugging pin, a main board main control microcontroller serial connection pin, a Wi-Fi network protocol Bluetooth module serial connection pin, an indicator light pin, and a button pin, wherein at least two of each of the microcontroller debugging pin, the main board main control microcontroller serial connection pin, the Wi-Fi network protocol Bluetooth module serial connection pin, and the indicator light pin are provided.

[0020] More preferably, the indicator light pins include a blue light pin and a red light pin.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, this utility model provides a smart control circuit for curtains, which has the following advantages:

[0023] High-efficiency intelligent control:

[0024] The circuit is based on the main board microcontroller and the sub-board microcontroller. Through precise control signals and motor drive technology, it realizes the precise opening and closing and adjustment of the curtains, improving the efficiency and accuracy of control.

[0025] The mainboard microcontroller is responsible for receiving and processing various control signals. It sends instructions to the brushed DC motor driver chip through the motor drive pin, realizing flexible adjustment of motor speed and direction to meet different needs of opening and closing curtains.

[0026] Remote control and intelligent interconnection:

[0027] The circuit integrates a wireless receiver and a Wi-Fi network protocol Bluetooth module, enabling wireless control and smart interconnection of the curtains.

[0028] Users can control the opening and closing of curtains anytime, anywhere via remote control or smartphones, improving ease of use.

[0029] Meanwhile, the circuit supports connection with smart home systems, enabling it to work in conjunction with other smart devices and improve the level of intelligence in home life.

[0030] Stable and reliable power supply:

[0031] The circuit employs a power supply step-down processor, including a transformer and a step-down converter, to provide a stable power supply voltage for the circuit.

[0032] The transformer converts the input voltage to a voltage value suitable for the circuit operation, while the step-down converter is coupled to the main control microcontroller and brushed DC motor driver chip through the Hall effect circuit, providing a stable 5V or 3V power output and ensuring the stable operation of the circuit.

[0033] Extensible functionality:

[0034] Both the mainboard microcontroller and the secondary board microcontroller are equipped with multiple pins for connecting and controlling different circuit modules, which improves the flexibility and scalability of the circuit.

[0035] The multi-pin design allows the circuit to easily implement complex functions and logic control, meeting the needs of different application scenarios.

[0036] Intuitive user feedback:

[0037] The main control microcontroller on the secondary board is equipped with indicator light pins, including blue and red light pins, which are used to display the circuit's operating status and fault information.

[0038] The on / off status and color changes of indicator lights can intuitively reflect the working status of the circuit, improving the user experience.

[0039] Enhanced system reliability:

[0040] The circuit has at least two key pins, such as the microcontroller debugging pin, the motor drive pin, the serial connection pin of the main microcontroller on the sub-board, and the motor operating status detection pin, which improves the reliability and maintenance convenience of the system.

[0041] This design makes it easier to diagnose and repair circuits when they fail, reducing maintenance costs and time.

[0042] Optimized power management:

[0043] The power supply buck processor is designed with the power requirements of different components in mind, providing a suitable power supply voltage and improving power efficiency.

[0044] Meanwhile, the power detection pin enables the circuit to monitor the power status in real time, ensuring that timely measures can be taken to protect the circuit and equipment in case of power abnormalities. Attached Figure Description

[0045] Figure 1 This is a schematic diagram illustrating the working principle of this utility model;

[0046] Figure 2 This is a schematic diagram of the main control microcontroller of the motherboard of this utility model;

[0047] Figure 3 This is a schematic diagram of the power supply step-down processor circuit of this utility model;

[0048] Figure 4 This is a schematic diagram of the main control microcontroller on the secondary board of this utility model;

[0049] Figure 5 This is a schematic diagram of the Bluetooth module circuit for the WI-FI network protocol of this utility model;

[0050] Figure 6 This is a schematic diagram of the Hall effect circuit of this utility model;

[0051] Figure 7 This is a schematic diagram of the wireless receiver circuit of this utility model;

[0052] Figure 8 This is a schematic diagram of the driving circuit of this utility model. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] Please see Figure 1-8 This utility model discloses a smart control circuit for curtains, comprising a main board microcontroller, a secondary board microcontroller, a brushed DC motor driver chip, a brushed DC motor, a wireless receiver, a Wi-Fi network protocol Bluetooth module, and a power supply step-down processor. The power supply step-down processor includes a transformer and a step-down converter. The transformer is electrically connected to the step-down converter and the brushed motor driver chip. The step-down converter is coupled to the main board microcontroller and the brushed DC motor driver chip via a Hall effect circuit. The step-down converter is electrically connected to the secondary board microcontroller, the wireless receiver, and the Wi-Fi network protocol Bluetooth module. The brushed DC motor is coupled to both the main board microcontroller and the secondary board microcontroller via a drive circuit. The main board microcontroller and the secondary board microcontroller are interconnected. The secondary board microcontroller is interconnected with the Wi-Fi network protocol Bluetooth module. The secondary board microcontroller is electrically connected to the wireless receiver.

[0055] This intelligent curtain control circuit is based on a main board microcontroller and a secondary board microcontroller. It controls the operation of a brushed DC motor via a brushed DC motor driver chip, enabling the opening, closing, and adjustment of the curtains. The circuit also integrates a wireless receiver, a Wi-Fi network protocol Bluetooth module, and a power supply step-down processor, achieving remote control, intelligent interconnection, and a stable power supply. All components work collaboratively through electrical connections and signal transmission, forming a highly efficient and intelligent curtain control system.

[0056] Working principle of each component

[0057] Mainboard microcontroller:

[0058] As the core control unit of the circuit, it is responsible for receiving and processing control signals from the main control microcontroller of the sub-board, the wireless receiver, or the Bluetooth module of the WI-FI network protocol.

[0059] Control signals are sent to the brushed DC motor driver chip via the motor drive pins to adjust the motor's speed and direction.

[0060] Monitor the motor's operating status and obtain motor operation feedback through the motor operating status detection pin.

[0061] It communicates with the main microcontroller on the secondary board through a serial pin to achieve information exchange and collaborative control.

[0062] Sub-board main control microcontroller:

[0063] It is responsible for receiving and processing control commands from wireless receivers or Wi-Fi network protocol Bluetooth modules.

[0064] The system receives commands from users or remote control via the command input pin and communicates with the Wi-Fi network protocol Bluetooth module via the Wi-Fi network protocol Bluetooth module serial pin to achieve remote control functionality.

[0065] It communicates with the main control microcontroller of the motherboard through a serial pin to transmit control signals and status information.

[0066] Control the on / off state and color of the indicator light, and provide feedback on the circuit's operating status to the user through the indicator light pins.

[0067] Brushed DC motor driver chip:

[0068] It receives control signals from the main control microcontroller on the motherboard and drives the brushed DC motor to run.

[0069] The speed and direction of the motor are adjusted according to the control signal to realize the opening and closing and adjustment of the curtains.

[0070] Connect to a power step-down processor to obtain a stable power supply.

[0071] Brushed DC motor:

[0072] As the power source for the curtains, it is connected to a brushed DC motor drive chip via a drive circuit.

[0073] The curtains open and close according to the control signals from the driver chip.

[0074] Wireless receiver:

[0075] It receives wireless control signals from the remote control and converts them into electrical signals, which are then transmitted to the main microcontroller on the secondary board.

[0076] Enables wireless control of curtains.

[0077] Wi-Fi network protocol Bluetooth module:

[0078] It connects to the main control microcontroller on the secondary board to realize the intelligent interconnection function of the curtains.

[0079] It connects to devices such as smartphones and smart home systems via Wi-Fi or Bluetooth, receives remote control commands, and transmits them to the main microcontroller on the secondary board.

[0080] Power supply step-down processor:

[0081] This includes transformers and step-down converters, which provide a stable power supply to the circuit.

[0082] A transformer converts the input voltage into a voltage value suitable for the circuit to operate.

[0083] The step-down converter is coupled to the main control microcontroller and brushed DC motor driver chip through a Hall effect circuit to provide a stable 5V or 3V power output.

[0084] Working principle of the preferred technical solution

[0085] Transformer and step-down transformer design:

[0086] A 12V transformer is selected to convert the input voltage to 12V, providing a stable power supply voltage for the circuit.

[0087] The step-down converter includes a 5V step-down output port and a 3V step-down output port, which provide appropriate power supply voltages for different components.

[0088] The 5V step-down output port is coupled to the main control microcontroller and the brushed DC motor driver chip through a Hall effect circuit to ensure the stable operation of the motor drive and the main control microcontroller.

[0089] The 3V step-down output provides power to the main control microcontroller, wireless receiver, and Wi-Fi network protocol Bluetooth module on the secondary board, meeting their low-power operation requirements.

[0090] Multi-pin design:

[0091] Both the main board's main control microcontroller and the secondary board's main control microcontroller are equipped with multiple pins for connecting and controlling different circuit modules.

[0092] Multi-pin designs improve circuit flexibility and scalability, facilitating the implementation of complex functions and logic control.

[0093] Indicator light design:

[0094] The main microcontroller on the secondary board is equipped with indicator light pins, including blue light pins and red light pins.

[0095] Indicator lights are used to display the operating status and fault information of the circuit, improving the user experience.

[0096] For example, a blue light can indicate that the circuit is working normally, while a red light can indicate that the circuit is faulty or in an abnormal state.

[0097] The main control microcontroller on the motherboard has the following pins:

[0098] Ground pin: Used for grounding;

[0099] Power input pin: Connects to power supply;

[0100] Microcontroller debug pins: used for online software debugging and simulation;

[0101] Motor drive pins: control the brushed DC motor drive;

[0102] Motor drive current detection pin: detects the current of the brushed DC motor drive, and triggers the protection mechanism when the detected current exceeds the preset value;

[0103] The serial communication pin of the main microcontroller on the secondary board is used for serial communication with the main microcontroller on the secondary board.

[0104] Motor operating status detection pin: Records data on the rotation direction and stroke of the brushed DC motor;

[0105] Power detection pin: Detects if there is a sudden power outage and saves data before the power is completely cut off;

[0106] The system includes at least two pins for microcontroller debugging, motor drive, serial connection to the main microcontroller on the sub-board, and motor operating status detection, in order to improve system reliability and ease of maintenance.

[0107] The main microcontroller on the secondary board is equipped with the following pins:

[0108] Ground pin: Used for grounding;

[0109] Power input pin: Connects to power supply;

[0110] Command input pin: Receives commands from the product remote control;

[0111] Microcontroller debug pins: used for online software debugging and simulation;

[0112] Mainboard microcontroller serial communication pin: Used for serial communication with the mainboard microcontroller;

[0113] Wi-Fi network protocol Bluetooth module serial pin: electrically connected to the Wi-Fi network protocol Bluetooth module;

[0114] Indicator pins: Used to display system status;

[0115] Button pins: Used for direct user operation;

[0116] The system has at least two pins for each of the microcontroller debugging pin, the motherboard main control microcontroller serial connection pin, the Wi-Fi network protocol Bluetooth module serial connection pin, and the indicator light pin, in order to improve the system's reliability and ease of maintenance.

[0117] Detailed Workflow

[0118] Power Management

[0119] Transformer and step-down converter: The 12V transformer converts the external input voltage to the voltage adapted to the system, and the step-down converter further adjusts it to 5V and 3V output.

[0120] Hall effect circuit coupling: The 5V output of the step-down converter provides a stable power supply to the main control microcontroller and the brushed DC motor driver chip through the Hall effect circuit, while monitoring current changes to protect the circuit.

[0121] control system

[0122] Mainboard microcontroller: As the core controller, it processes information from various sensors and modules, and controls the curtains' movements according to preset logic or user instructions.

[0123] Sub-board main control microcontroller: assists the main board main control microcontroller in data processing and is responsible for wireless communication functions, including receiving remote commands and status feedback.

[0124] motor drive

[0125] Brushed DC motor driver chip: Under the instructions of the main control microcontroller on the motherboard, it precisely controls the rotation direction and speed of the brushed DC motor, thereby realizing the opening and closing of the curtains.

[0126] Motor drive current detection: The main control microcontroller on the motherboard monitors the motor drive current in real time through a dedicated pin. Once the current exceeds the set threshold, protective measures are immediately taken, such as stopping the motor.

[0127] User interaction and remote control

[0128] Wireless receiver: Receives commands from the remote control and transmits them to the main microcontroller on the secondary board for processing.

[0129] Wi-Fi network protocol Bluetooth module: Allows users to connect to the Internet or Bluetooth via smartphones or other smart devices to achieve remote control and status query.

[0130] Indicator lights: Blue and red lights are used to display different working statuses or fault prompts, helping users quickly understand the current situation.

[0131] Data recording and protection mechanisms

[0132] Motor operating status detection: Record the direction and stroke data of motor rotation to ensure accurate control of curtain position.

[0133] Power detection: When a sudden power outage is detected, important data is saved before the power is completely cut off to avoid data loss.

[0134] In summary, this intelligent curtain control circuit not only achieves efficient and precise control of the curtains, but also enhances the system's reliability, security, and user experience through a series of optimized technical solutions. These characteristics together constitute an intelligent, convenient, and feature-rich curtain control system suitable for various home and commercial environments.

[0135] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart control circuit for curtains, characterized in that, The system includes a mainboard microcontroller, a secondary board microcontroller, a brushed DC motor driver chip, a brushed DC motor, a wireless receiver, a Wi-Fi network protocol Bluetooth module, and a power supply step-down processor. The power supply step-down processor includes a transformer and a step-down converter. The transformer is electrically connected to the step-down converter and the brushed motor driver chip. The step-down converter is coupled to the mainboard microcontroller and the brushed DC motor driver chip via a Hall effect circuit. The step-down converter is electrically connected to the secondary board microcontroller, the wireless receiver, and the Wi-Fi network protocol Bluetooth module. The brushed DC motor is coupled to both the mainboard microcontroller and the secondary board microcontroller via a drive circuit. The mainboard microcontroller and the secondary board microcontroller are interconnected. The secondary board microcontroller is interconnected with the Wi-Fi network protocol Bluetooth module. The secondary board microcontroller is electrically connected to the wireless receiver.

2. The intelligent control circuit for curtains according to claim 1, characterized in that, The transformer is a 12V transformer, and the step-down converter includes a 5V step-down output port and a 3V step-down output port.

3. A smart control circuit for curtains according to claim 2, characterized in that, The 5V step-down output port of the step-down transformer is coupled to the main control microcontroller of the motherboard and the brushed DC motor driver chip through a Hall effect circuit. The 3V step-down output port of the step-down transformer is electrically connected to the main control microcontroller of the secondary board, the wireless receiver, and the Bluetooth module of the WI-FI network protocol.

4. A smart control circuit for curtains according to claim 3, characterized in that, The mainboard microcontroller is equipped with a ground pin, a power input pin, a microcontroller debugging pin, a motor drive pin, a motor drive current detection pin, a secondary board main control microcontroller serial connection pin, a motor operating status detection pin, and a power detection pin. Among these, there are at least two of each of the microcontroller debugging pin, the motor drive pin, the secondary board main control microcontroller serial connection pin, and the motor operating status detection pin.

5. A smart control circuit for curtains according to claim 4, characterized in that, The sub-board main control microcontroller is equipped with a ground pin, a power input pin, a command input pin, a microcontroller debugging pin, a main control microcontroller serial connection pin, a Wi-Fi network protocol Bluetooth module serial connection pin, an indicator light pin, and a button pin. Among these, there are at least two of each of the microcontroller debugging pin, the main control microcontroller serial connection pin, the Wi-Fi network protocol Bluetooth module serial connection pin, and the indicator light pin.

6. A smart control circuit for curtains according to claim 5, characterized in that, The indicator light pins include a blue light pin and a red light pin.

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