Photovoltaic panel control circuit based on dual-chip cooperative control

Abstract

The utility model relates to photovoltaic panel control circuit technical field, specifically disclose a kind of photovoltaic panel control circuit based on double-chip cooperative control, comprising: main chip is connected with multiple sensors, for receiving the collection data of sensor, the main chip is also connected with motor drive circuit, for sending control instruction signal, the main chip is also connected with high-performance drive chip;Sub-chip is connected with the main chip communication, and the sub-chip is also connected with the motor drive circuit;The motor drive circuit includes multiplex drive circuit, each drive circuit is connected with motor, each motor is connected with hall sensor, the sub-chip is connected with the hall sensor, for collecting hall count;Power-off delay power supply is connected with the main chip, the sub-chip, the motor drive circuit and the motor respectively;Solved the problem that current single-chip photovoltaic panel control circuit when chip failure whole system out of control and lead to photovoltaic panel be damaged.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic panel control circuit technology, specifically to a photovoltaic panel control circuit based on dual-chip collaborative control. Background Technology

[0002] Currently, photovoltaic (PV) panel control circuits mostly use a single chip to implement related functions. This circuit primarily consists of a sensor interface circuit, a communication module, a motor drive circuit, and a main control chip. The main control chip, as the core, runs corresponding control algorithms to coordinate the work of each module, completing a series of tasks such as data acquisition, communication, motor control, and Hall effect counting. However, single-chip control schemes have significant drawbacks. Because all tasks are concentrated on a single chip, its processing capacity easily reaches its limit when tasks become complex. For example, when simultaneously performing large-scale data acquisition, complex communication protocol processing, and precise motor control, the chip experiences processing delays, leading to untimely motor responses and an inability to quickly adjust the PV panel angle to adapt to changes in sunlight, thus reducing PV power generation efficiency. During motor operation, if the main chip experiences a program crash or malfunction, the entire system will lose control. The motor will continue to operate uncontrollably and without calibration, subjecting the PV panel to stress and causing structural damage, increasing maintenance costs and downtime. In scenarios controlling multiple motors, the complexity of the single-chip operation makes it difficult to accurately coordinate the operation of each motor, failing to ensure that the travel distance of each motor is within the allowable range, easily leading to stress and damage to the PV panel.

[0003] Therefore, there is an urgent need to develop a high-performance control circuit for photovoltaic panels to achieve efficient and stable control of the photovoltaic panels. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic panel control circuit based on dual-chip collaborative control, which solves the problem that when the chip in the current single-chip photovoltaic panel control circuit crashes or malfunctions, the entire control circuit system loses control, causing the motor to run out of control and continue to operate without calibration, resulting in structural damage to the photovoltaic panel due to stress tension.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A photovoltaic panel control circuit based on dual-chip collaborative control includes: a main chip connected to multiple sensors for receiving sensor data, the main chip also connected to a motor drive circuit for sending control command signals, and a high-performance drive chip; a sub-chip communicatively connected to the main chip and also connected to the motor drive circuit; the motor drive circuit includes multiple drive circuits, each connected to a motor, each motor connected to a Hall sensor, the sub-chip connected to the Hall sensor for collecting Hall counts; and a power-off delay power supply connected to the main chip, the sub-chip, the motor drive circuit, and the Hall sensor.

[0007] A further technical solution is that the main chip is connected to an angle sensor and a temperature sensor respectively. The angle sensor is used to collect the angle information of the photovoltaic panel, and the temperature sensor is used to collect the temperature data of the operating environment of the photovoltaic panel control circuit. The main chip is also connected to a Zigbee module and a Bluetooth module. The power-off delay power supply includes multiple capacitors and is also connected to the Zigbee module, the Bluetooth module, the angle sensor, and the temperature sensor respectively.

[0008] A further technical solution is that the main chip and the sub-chip communicate with each other via the UART communication protocol; the main chip outputs control command signals to the motor drive circuit, the control command signals including direction commands and speed commands; the sub-chip outputs enable signals to the motor drive circuit.

[0009] A further technical solution is that the sub-chip is also connected to a memory chip for storing data; the sub-chip communicates with the memory chip via the SPI communication protocol to realize the storage technology function, and the memory chip is also connected to the power-off delay power supply.

[0010] A further technical solution is that an ADC monitoring power signal channel is connected between the power-off delay power supply and the main chip, which is used for the power-off delay power supply to collect power information and send it to the main chip; the main chip communicates with the Bluetooth module, the Zigbee module and the angle sensor through the UART communication protocol; the main chip and the sub-chip can also communicate with each other through the SPI communication protocol or the I2C communication protocol.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model provides a photovoltaic panel control circuit based on dual-chip collaborative control, which has significant advantages at the hardware level. Through the collaborative work of the main and auxiliary chips, and the Hall effect counting acquisition of the motor by the auxiliary chip and the precise speed control achieved by the main chip in conjunction with the high-performance drive chip, the consistency of the motor's travel distance can be ensured, making the photovoltaic panel angle adjustment more accurate and effectively improving the safety of the photovoltaic panel during operation. The main and auxiliary chips are monitored in real time through a UART data line. When either chip fails, the hardware circuit design ensures that the motor cannot be controlled and that a timely shutdown operation can be performed during motor operation to avoid stress damage to the photovoltaic panel due to motor malfunction. This greatly reduces equipment maintenance costs and downtime, and improves system stability and reliability. By integrating a Zigbee communication module and a Bluetooth module into the main chip, communication between the device and external devices and contactless program updates are facilitated (improving convenience only from a hardware connection perspective, without involving software operation). This facilitates remote monitoring and functional optimization of the photovoltaic panel control system, adapting to different application scenarios and changing needs. Attached Figure Description

[0013] Figure 1 A structural diagram of the photovoltaic panel control circuit based on dual-chip collaborative control provided by this utility model;

[0014] Figure 2 This is a diagram of the peripheral circuit structure connected to the main chip in an embodiment of this utility model.

[0015] Icons: Main chip 100, secondary chip 200, motor drive circuit 300, motor 400, Hall sensor 500, power failure delay power supply 600, memory chip 700, Bluetooth module 800, Zigbee module 900, angle sensor 1000, temperature sensor 1100. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Example 1

[0018] This utility model embodiment provides a photovoltaic panel control circuit based on dual-chip collaborative control, such as... Figure 1As shown, the core control unit consists of a main chip 100 and a sub-chip 200. Specifically, the main chip 100 is connected to multiple sensors to receive data collected by the sensors. The main chip 100 is also connected to a motor 400 drive circuit 300 and a high-performance drive chip to send control command signals, achieving precise control of the speed and direction of the photovoltaic panel motor 400 and ensuring consistent travel distance of the photovoltaic panel motor 400. The sub-chip 200 is communicatively connected to the main chip 100 for mutual data transmission. The sub-chip 200 is also connected to the motor drive circuit 300, which contains multiple drive circuits, each connected to a motor 400. Each motor 400 is connected to a Hall sensor 500. The sub-chip 200 is connected to the Hall sensor 500 to collect the Hall count output by the Hall sensor 500, thereby accurately obtaining the travel position information of the motor 400. For example, there are four motor drive circuits 300, each connected to one motor 400. This system connects to four motors 400 and includes a power-off delay power supply 600. The power-off delay power supply 600 is connected to the main chip 100, the sub-chip 200, the motor drive circuit 300, and the Hall sensor 500. The power-off delay power supply 600 provides 3.3V to the main chip 100 and sub-chip 200, 24V to the motor drive circuit 300, and 12V to the Hall sensor 500. This ensures that in the event of an abnormal power outage, the power-off delay power supply 600 can supply power to the main chip 100, sub-chip 200, motor drive circuit 300, and Hall sensor 500, delaying the loss of power to these Zigbee modules 900. It can also record important data such as changes in the buffer position of the motors 400 during operation, facilitating subsequent system recovery and fault analysis. Furthermore, it is equipped with various peripheral circuits to achieve efficient and stable control of the photovoltaic panels.

[0019] In the embodiments of this utility model, such as Figure 2As shown, the main chip 100 is connected to a temperature sensor 1100, which collects temperature data of the operating environment of the photovoltaic panel control circuit. The main chip 100 uses its built-in analog-to-digital converter to convert the analog signal output by the temperature sensor 1100 into a digital signal, thereby obtaining real-time temperature data of the operating environment of the photovoltaic panel control circuit board. The main chip 100 is also connected to an angle sensor 1000 to collect angle information of the photovoltaic panel, thereby monitoring the angle information of the photovoltaic panel in real time. The main chip 100 is also connected to a Zigbee module 900, which serves as a wireless communication module. Through the Zigbee module 900, data interaction is performed with the host or other devices, uploading real-time operating status data of the photovoltaic panel (such as temperature, angle, etc.) and receiving control commands sent by the host. The main chip 100 is also connected to a Bluetooth module 800, which eliminates the need for disassembling the casing for local upgrades and enables OTA contactless upgrades of the device program. The power-off delay power supply 600 includes multiple capacitors, for example, the power-off delay power supply 600 includes four large capacitors. The capacitor and power-off delay power supply 600 are also connected to the Zigbee module 900, Bluetooth module 800, angle sensor 1000, and temperature sensor 1100, respectively. The output voltage of the power supply lines provided by the power-off delay power supply 600 to the Zigbee module 900, Bluetooth module 800, angle sensor 1000, and temperature sensor 1100 is 3.3V. In the event of an abnormal power outage, the power-off delay power supply 600 can supply power to the Zigbee module 900, Bluetooth module 800, angle sensor 1000, and temperature sensor 1100 and delay the loss of power to these modules. It can also record important data such as buffer changes in the operating status of these modules, which is convenient for subsequent system recovery and fault analysis. Four large capacitors are added to the input power supply terminal to realize the abnormal power outage delay function. In the instant of abnormal power outage or power switching, these four large capacitors can keep the system powered for a short time, ensuring that important data of the system operation is not lost in the event of abnormal power outage or power switching during the operation of motor 400, while ensuring a smooth transition of power switching.

[0020] In this embodiment of the invention, the main chip 100 and the secondary chip 200 communicate via the UART communication protocol. The main chip 100 sends control commands to the secondary chip 200, and the secondary chip 200 feeds back the real-time position and speed information of the motor 400 to the main chip 100. If either chip fails, the hardware circuit design ensures that the motor 400 cannot be controlled, and a shutdown operation can be performed during motor 400 operation, enhancing system reliability. The main chip 100 outputs control command signals to the motor drive circuit 300. These control command signals include direction and speed commands; that is, the main chip 100 outputs direction and speed commands to multiple drive circuits. Each drive circuit sends a drive command based on the received direction and speed commands. The main chip 100 sends a motor running command to the motor 400 connected to the drive circuit to control the direction and speed of the motor 400; the secondary chip 200 outputs an enable signal to the motor drive circuit 300; when controlling the motor 400, the main and secondary chips work together. The main chip 100 sends a motor running command to the secondary chip 200 based on the collected photovoltaic panel angle information and the overall control strategy; the secondary chip 200 turns on the motor enable switch and performs Hall effect counting according to the command. The secondary chip 200 feeds back the obtained real-time position and speed information of the motor to the main chip 100. The main chip 100 adjusts the running speed of the motor 400 in real time according to the feedback of the real-time position and speed information of the motor, ensuring that the travel distance of each motor 400 is within a certain allowable range, and realizing the smooth and precise adjustment of the photovoltaic panel angle.

[0021] In this embodiment of the utility model, the secondary chip 200 is also connected to a memory chip 700 for storing data. The memory chip 700 can be selected as a FLASH memory. The secondary chip 200 communicates with the memory chip 700 through the SPI communication protocol to realize the storage technology function. The memory chip 700 is also connected to a power-off delay power supply 600. The power-off delay power supply 600 provides a power supply line with an output voltage of 3.3V to the memory chip 700 so that in the event of an abnormal power outage, the power-off delay power supply 600 can supply power to the memory chip 700 to store important data such as changes in operating status, which facilitates subsequent system recovery and fault analysis.

[0022] In this embodiment of the invention, an ADC monitoring power signal channel is connected between the power-off delay power supply 600 and the main chip 100. This channel is used for the power-off delay power supply 600 to collect power information and send it to the main chip 100. Its function is to convert the analog electrical signals (voltage, current, etc.) of the power-off delay power supply 600 into signals and transmit them to the main chip 100 for monitoring, enabling the main chip 100 to obtain the power status and ensuring that the main chip 100 can monitor whether the power supply is working properly. The main chip 100 communicates with the Bluetooth module 800, the Zigbee module 900, and the angle sensor 1000 via the UART communication protocol. The main chip 100 and the sub-chip 200 can also communicate via the SPI or I2C communication protocol.

[0023] The photovoltaic panel control circuit based on dual-chip collaborative control provided by this utility model utilizes a main-slave chip collaborative working mode. The main chip is responsible for communication, data acquisition, motor speed and direction control, light hardware connection, and signal transmission functions, while the slave chip focuses on the hardware implementation of motor Hall counting and enable control. This clear division of labor greatly enhances the photovoltaic panel control circuit system's ability to handle complex tasks, avoids single-chip processing bottlenecks, and improves control accuracy and system operating efficiency. The dual-chip design, combined with a real-time fault monitoring hardware circuit based on a specific protocol, can quickly stop the motor operation when a chip experiences a program fault or damage, preventing the photovoltaic panel from being subjected to stress. The abnormal power outage delay hardware design, achieved by adding multiple capacitors to the input power supply, ensures that important system data is not lost during abnormal power outages, guarantees a smooth transition during power switching, and significantly improves system reliability. The main chip integrates a Zigbee module and a Bluetooth module for hardware connection, enabling efficient communication between the device and external devices, as well as contactless program updates. This facilitates remote monitoring and function optimization, meeting the diverse needs of photovoltaic panel control circuit systems in different application scenarios.

[0024] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the drawings and claims disclosed herein. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A photovoltaic panel control circuit based on dual-chip collaborative control, characterized in that, include: The main chip (100) is connected to multiple sensors for receiving data collected by the sensors. The main chip (100) is also connected to the motor (400) drive circuit (300) for sending control command signals. The main chip (100) is also connected to a high-performance drive chip. The sub-chip (200) is communicatively connected to the main chip (100), and the sub-chip (200) is also connected to the motor (400) drive circuit (300); The motor (400) drive circuit (300) includes multiple drive circuits, each drive circuit is connected to a motor (400), each motor (400) is connected to a Hall sensor (500), and the sub-chip (200) is connected to the Hall sensor (500) for collecting Hall counts; The power-off delay power supply (600) is connected to the main chip (100), the sub-chip (200), the motor (400) drive circuit (300), and the Hall sensor (500), respectively.

2. The photovoltaic panel control circuit based on dual-chip collaborative control according to claim 1, characterized in that, The main chip (100) is connected to the angle sensor (1000) and the temperature sensor (1100) respectively. The angle sensor (1000) is used to collect the angle information of the photovoltaic panel, and the temperature sensor (1100) is used to collect the temperature data of the operating environment of the photovoltaic panel control circuit. The main chip (100) is also connected to a Zigbee module (900) and a Bluetooth module (800). The power-off delay power supply (600) includes multiple capacitors and is also connected to the Zigbee module (900), the Bluetooth module (800), the angle sensor (1000), and the temperature sensor (1100), respectively.

3. A photovoltaic panel control circuit based on dual-chip collaborative control according to claim 2, characterized in that, The main chip (100) and the sub-chip (200) communicate with each other via the UART communication protocol. The main chip (100) outputs control command signals to the motor (400) drive circuit (300), and the control command signals include direction commands and speed commands; The sub-chip (200) outputs an enable signal to the motor (400) drive circuit (300).

4. A photovoltaic panel control circuit based on dual-chip collaborative control according to claim 3, characterized in that, The sub-chip (200) is also connected to a memory chip (700) for storing data; The sub-chip (200) communicates with the memory chip (700) via the SPI communication protocol to implement storage technology functions. The memory chip (700) is also connected to the power-off delay power supply (600).

5. A photovoltaic panel control circuit based on dual-chip collaborative control according to claim 2, characterized in that, An ADC monitoring power signal channel is connected between the power-off delay power supply (600) and the main chip (100) for the power-off delay power supply (600) to collect power information and send it to the main chip (100). The main chip (100) communicates with the Bluetooth module (800), the Zigbee module (900), and the angle sensor (1000) via the UART communication protocol. The main chip (100) and the sub-chip (200) can also communicate data via the SPI communication protocol or the I2C communication protocol.

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