Integrated solar aviation obstacle light circuit system

Abstract

The utility model belongs to solar power supply technical field especially relates to integral type solar energy aviation obstacle light circuit system, its characterized in that, MCU microprocessor connects power module, ADC light control module, isolation module, 485 communication module and GPS communication module respectively, power module connects battery anti -overcharge module, ADC light control module, isolation module, 485 communication module, GPS communication module and boost LED drive module respectively, isolation module connects boost LED drive module, boost LED drive module connects LED lamp, MPPT charging module and battery anti -overcharge module are connected with battery group respectively, and MPPT charging module still connects photovoltaic cell. The utility model has the beneficial effects that: adopt integral type solar power supply structure, reduce the problem of installation link, can be applicable to multiple use environment, can be compatible with multiple types photovoltaic cell panel, battery power supply, realize the protection of battery, also can control multiple types, quantity's LED lamps and lanterns.

Description

Technical Field

[0001] This utility model belongs to the field of solar power supply technology, and in particular relates to an integrated solar-powered aviation obstruction light circuit system. Background Technology

[0002] Currently, most aviation obstruction lights are used in the field, making battery power the only option. However, traditional photovoltaic power generation is inefficient, requiring increased battery capacity for the same power supply, which increases both cost and the difficulty of system installation and maintenance. MPPT (Maximum Power Point Tracking) charging technology, through a DC-DC converter, dynamically adjusts the voltage and current of the photovoltaic modules, ensuring they always operate at their maximum power output point, offering significant advantages over traditional methods.

[0003] Currently, MPPT (Maximum Power Point Tracking) charging technology is used in photovoltaic systems (such as residential, commercial, and industrial applications), energy storage systems (such as lithium batteries and gel batteries), multi-energy complementary systems (such as wind-solar-storage integrated systems), and off-grid systems (such as communication base stations and residential energy storage). This technology can improve the efficiency of photovoltaic systems by about 20%, especially when there are fluctuations in light or temperature, which allows for a reduction in the number and capacity of batteries.

[0004] In the application of split-type solar power systems, installation errors can easily occur during the installation process, leading to equipment damage. Uneven charging of multiple battery packs, and over-discharging of individual batteries, can also occur, all of which accelerate battery life reduction and increase maintenance costs. Utility Model Content

[0005] The purpose of this invention is to provide an integrated solar-powered aviation obstruction light circuit system, overcoming the shortcomings of existing technologies. It adopts an integrated solar obstruction light structure, integrating the circuit into a single light system, reducing installation issues, and allowing for flexible changes in illumination time based on application conditions such as sunlight and temperature.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The integrated solar-powered aviation obstruction light circuit system includes an MCU microprocessor, a power module, an MPPT charging module, a boost LED driver module, a battery over-discharge protection module, and an ADC light control module. The MCU microprocessor is connected to the power module, the ADC light control module, an isolation module, a 485 communication module, and a GPS communication module. The power module is connected to the battery over-discharge protection module, the ADC light control module, the isolation module, the 485 communication module, the GPS communication module, and the boost LED driver module. The isolation module is connected to the boost LED driver module, which is connected to the LED light. The MPPT charging module and the battery over-discharge protection module are connected to the battery pack, and the MPPT charging module is also connected to the photovoltaic cell.

[0008] Furthermore, the main chip model of the MCU microprocessor is STM32F103C8T6.

[0009] Furthermore, the MPPT charging module includes an input filtering circuit, a voltage divider circuit, a charging management circuit, an overcurrent protection circuit, a constant voltage circuit, and an output filtering circuit. The main chip of the charging management circuit is CN3795.

[0010] Furthermore, the battery over-discharge protection module includes a lightning protection circuit, an energy storage filter circuit, a reference voltage circuit, a comparator circuit, an anti-interference circuit, and a switching circuit. The main chip of the comparator circuit is an LM393.

[0011] Furthermore, the main chip of the isolation module is an EL357N, which is connected to the PWM pin of the MCU microprocessor.

[0012] Furthermore, the main chip of the boost LED driver module is HI6000B; the main chip of the power supply module is MX74610, Hi9001, or SPX3819-3.3, with three voltage levels of +12V, +5V, and +3.3V output.

[0013] Furthermore, the main chip of the ADC optical control module is LM321; the main chip of the 485 communication module is ISO3082; and the main chip of the GPS communication module is AIR510U.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1) Adopting an integrated solar power supply structure, all circuits are integrated into a single lamp system, reducing installation issues and making it suitable for various usage environments. By adjusting parameters according to the application's sunlight and temperature conditions, it can achieve compatibility with various types of photovoltaic panels and battery power supply. At the same time, it can control various types and quantities of LED lights, making the solution more flexible and reliable.

[0016] 2) The LED lights adopt a wide voltage power supply and a boost LED constant current drive method to achieve compatibility with various battery types and power supply combinations; they use a low-power MCU and a high-precision light control probe to accurately control the lighting of the lights; they reserve an isolated 485 communication interface to realize human-machine interaction functions. The solution has the characteristics of high integration, high energy conversion rate, strong compatibility, and applicability to various environments, solving the problems of low energy utilization and low compatibility with different working environments.

[0017] 3) In this system, the MPPT charging module can track the maximum power point of the photovoltaic panel in real time and store the electrical energy generated by the photovoltaic panel into the battery. The battery overvoltage protection circuit monitors the battery voltage in real time. When the battery voltage drops to the set lower threshold, the output is automatically turned off. When the battery voltage rises to the set opening threshold, the output is automatically turned on, thereby protecting the battery. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the circuit principle of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the MPPT charging module in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the over-discharge protection module for batteries in this embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the MCU microprocessor principle in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the boost LED driver module circuit in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the ADC optical control module circuit in an embodiment of this utility model;

[0024] Figure 7 This is a schematic diagram of the GPS communication module circuit in an embodiment of this utility model;

[0025] Figure 8 This is a schematic diagram of the circuit principle of the 485 communication module in this embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the power module circuit in an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the isolation module in an embodiment of this utility model. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the specific embodiments used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some embodiments of this utility model. For those skilled in the art, other specific embodiments can be obtained based on these specific embodiments without creative effort.

[0030] The components of the present invention described and shown in the specific embodiments herein can be arranged and designed in numerous different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the claimed invention, but only to illustrate selected embodiments of the invention.

[0031] See Figure 1-10 This is a schematic diagram of the circuit principle of an embodiment of the integrated solar-powered aviation obstruction light circuit system of this utility model. It includes an MCU microprocessor, a power supply module, an MPPT charging module, a boost LED driver module, a battery over-discharge protection module, and an ADC light control module. The MCU microprocessor is connected to the power supply module, the ADC light control module, an isolation module, a 485 communication module, and a GPS communication module. The power supply module is connected to the battery over-discharge protection module, the ADC light control module, the isolation module, the 485 communication module, the GPS communication module, and the boost LED driver module. The isolation module is connected to the boost LED driver module. The boost LED driver module is connected to the LED light. The MPPT charging module and the battery over-discharge protection module are connected to the battery pack. The MPPT charging module is also connected to the photovoltaic cell.

[0032] In this embodiment, the main chip of the MCU microprocessor is an STM32F103C8T6. Its function is to identify the ambient light status through the ADC light control module and automatically control the LEDs to switch between different operating modes. The GPS module continuously provides time synchronization and calibration to the MCU to achieve simultaneous flashing and extinguishing. The main chip of the isolation module is an EL357N, which is connected to the PWM pin of the MCU microprocessor. Its function is to isolate the MCU and the constant current driver chip through optocouplers, ensuring that a fault on one side will not damage the circuit on the other. The main chip of the boost LED driver module is an HI6000B, which is a wide-voltage input boost LED constant current driver, enabling the LEDs to flash and extinguish simultaneously. The main chips of the power supply module are MX74610, Hi9001, and SPX3819-3.3, with +12V, +5V, and +3.3V output levels. The ADC light control module uses an LM321 main chip, which functions as a wide-voltage input boost LED constant current driver, enabling simultaneous flashing and extinguishing of LEDs. The 485 communication module uses an ISO3082 main chip, an isolated full-duplex differential line driver. Its function is to send the acquired analog signal to the MCU for processing via an operational amplifier, significantly improving protection levels. It can operate in environments with high common-mode voltage, making it suitable for long-distance signal transmission. It enables effective communication with the host computer and control equipment. The GPS communication module uses an AIR510U main chip, which provides timing calibration and positioning functions for the MCU, enabling the lights to flash and extinguish simultaneously without difference and providing high-precision positioning coordinates.

[0033] The MPPT charging module includes an input filter circuit, a voltage divider circuit, a charging management circuit, an overcurrent protection circuit, a constant voltage circuit, and an output filter circuit. The main chip of the charging management circuit is CN3795. The photovoltaic panel is connected via terminal J1, and reverse current and lightning strike protection are provided by D1 / SS36 Schottky diode and R2 / 20D561K varistor. C6 / C1 / C2 / C3 are energy storage filter capacitors, which power the U2 / CN3795 chip and filter out multi-band interference. R5 and LED1 are connected in series to pin 3 of the IC as a charging status indicator. Resistors R6 / R7 / R10 / R12 are used in series to divide the voltage and set the MPPT value for specific environments. U1 is a low DC internal resistance PMOS field-effect transistor, and U2 controls the switching of U1 to reduce switching losses and improve charging efficiency. R13 / C9 are loop compensation resistors and capacitors to ensure the stability of the current modulation circuit and voltage modulation circuit. R4 / C8 are high-frequency oscillation suppression devices, suppressing high-frequency oscillations generated during the instant U1 is turned on or off. L1 is a low DC internal resistance inductor, serving as an energy storage element. During U1's on-time, the photovoltaic panel charges L1; during U1's off-time, L1 charges the battery. D2 is a Schottky diode to reduce switching losses. R8 / R9 / R11 / R14 are parameter setting resistors for constant voltage charging values ​​to accommodate different types of battery charging protection functions. R1 is a parameter setting resistor for constant current charging values ​​to accommodate photovoltaic panel charging of different power ratings, providing overcurrent protection for the battery. C7 / C4 / C5 are output filter capacitors, reducing output ripple voltage and improving transient characteristics. R3 is a varistor providing protection for the battery terminal.

[0034] The battery over-discharge protection module includes a lightning protection circuit, an energy storage filter circuit, a reference voltage circuit, a comparator circuit, an anti-interference circuit, and a switching circuit. The main chip of the comparator circuit is an LM393. R16 / R19 / R20 are varistors for lightning protection, which then supply power to the subsequent stages via energy storage filter capacitors C15 / C13 / C14. R15 / R21, in series, divide the voltage to provide the non-inverting input of the U3 / LM393 op-amp for judging the real-time battery voltage. R23 and D3, in series, generate a reference voltage. R26 / R30 / R28 / R31 / Q3 provide a reference voltage for the inverting input of U3, used for comparison with the voltage at the non-inverting input of U3. R17 / C10 supplies power to U3. The base of the Q2 / NPN transistor is directly connected to the output of U3 via R24 and the gate of Q3 through R29. When the voltage at the non-inverting input of U3 (reflecting the battery voltage after voltage division by R15 / R21) is greater than the voltage at the inverting input of U3, U3 outputs a high level, causing Q2 to conduct. The gate of Q1 is pulled low to GND, Q1 conducts, and the battery supplies power to the subsequent stages. Simultaneously, Q3 conducts, and R31 is short-circuited. The values ​​of R28 or R30 can be adjusted to the lower threshold voltage for over-discharge protection of the battery, thus protecting it from over-discharge. When the voltage at the non-inverting input of U3 (reflecting the battery voltage after voltage division by R15 / R21) is less than the voltage at the inverting input of U3, U3 outputs a low level. In this case, the value of R31 can be adjusted to set the battery restart voltage threshold. Because U3 outputs a low level, transistor Q2 is turned off, pulling the gate voltage of Q1 / PMOS transistor high, Q1 is turned off, and the battery stops supplying power to the subsequent circuits. This protects the battery from accidental switching and continuous discharge that could damage the battery. In the anti-interference circuit, R27 and C16 can prevent electromagnetic interference from causing false triggering of the Q2 transistor in the switching circuit.

[0035] The power module first uses a TVS4 / SMBJ36CA to suppress surges from the battery terminal. Then, Q4 and U9 form an ideal diode to provide reverse connection protection and reduce power consumption. The battery voltage is then converted to a stable 5V by a U8 / Hi9001 wide-input DC-DC step-down chip to power subsequent circuits, achieving compatibility with various battery power sources. The boost LED driver module uses a wide voltage input to address the issue of direct power supply from multiple single batteries. The output voltage can be configured via device parameters to accommodate different types and numbers of LEDs. The battery pack powers U1 via C1 / C2 filter capacitors and R3 resistor. R1 / C40 pulls down to GND to provide a stable low level for the PWM pin. When the MCU inputs a stable high / low level cycle to U1, it controls the Q1 switch, charging and discharging the L1 inductor and boosting the output voltage. The LED is then powered via C4 / C10 output filter capacitors. Using PWM linear dimming not only allows for precise control of the LED drive current but also enables frequencyless dimming, eliminating the visually noticeable dimming issues. R57 / C16 provides a stable 5V power supply to U1, preventing voltage drops in the preceding stage caused by sudden increases in the load of the subsequent stage, which could lead to system instability. C17 / R35 / C53 are loop compensation resistors and capacitors, providing stability for the current modulation loop and voltage modulation loop. Adjusting the parameters of R10 helps protect against overcurrent in different types of loads. Adjusting R19 / R20 allows for precise control and protection of the LEDs by adjusting the current flowing through them. R53 and the gate-source junction capacitance of Q1 form an RC filter, absorbing high-frequency noise generated during the switching process of Q1 and reducing external radiation.

[0036] 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. An integrated solar-powered aviation obstruction light circuit system, characterized in that, It includes an MCU microprocessor, a power module, an MPPT charging module, a boost LED driver module, a battery over-discharge protection module, and an ADC light control module. The MCU microprocessor is connected to the power module, the ADC light control module, an isolation module, a 485 communication module, and a GPS communication module. The power module is connected to the battery over-discharge protection module, the ADC light control module, the isolation module, the 485 communication module, the GPS communication module, and the boost LED driver module. The isolation module is connected to the boost LED driver module, and the boost LED driver module is connected to the LED light. The MPPT charging module and the battery over-discharge protection module are connected to the battery pack, and the MPPT charging module is also connected to the photovoltaic cell.

2. The integrated solar-powered aviation obstruction light circuit system according to claim 1, characterized in that, The main chip of the MCU microprocessor is STM32F103C8T6.

3. The integrated solar-powered aviation obstruction light circuit system according to claim 1, characterized in that, The MPPT charging module includes an input filtering circuit, a voltage divider circuit, a charging management circuit, an overcurrent protection circuit, a constant voltage circuit, and an output filtering circuit. The main chip of the charging management circuit is CN3795.

4. The integrated solar-powered aviation obstruction light circuit system according to claim 1, characterized in that, The battery over-discharge protection module includes a lightning protection circuit, an energy storage filter circuit, a reference voltage circuit, a comparator circuit, an anti-interference circuit, and a switching circuit. The main chip of the comparator circuit is an LM393.

5. The integrated solar-powered aviation obstruction light circuit system according to claim 1, characterized in that, The main chip of the isolation module is EL357N, which is connected to the PWM pin of the MCU microprocessor.

6. The integrated solar-powered aviation obstruction light circuit system according to claim 1, characterized in that, The main chip of the boost LED driver module is HI6000B; the main chip of the power supply module is MX74610, Hi9001, or SPX3819-3.3, with three voltage levels of +12V, +5V, and +3.3V output.

7. The integrated solar-powered aviation obstruction light circuit system according to claim 1, characterized in that, The main chip of the ADC optical control module is LM321; the main chip of the 485 communication module is ISO3082; and the main chip of the GPS communication module is AIR510U.

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