Automatic anti-dazzle driving circuit of LED outdoor lamp

Abstract

According to the LED outdoor lamp automatic anti-dazzle driving circuit provided by the utility model, the positions of pedestrians are determined through the radar module; determining a reference position through the gyroscope module; sending a control instruction to a motor driving module through a main control module according to the pedestrian position and the reference position so as to drive an anti-dazzle disc to rotate to a specified position; through the circuit, the position of a pedestrian can be judged, an instruction is issued to the motor module through judged information, the driving motor drives the anti-dazzle disc to rotate to a corresponding position according to the instruction issued by the main control module, and the purpose of automatic anti-dazzle is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting devices, in particular to an automatic anti-glare driving circuit for an LED outdoor lamp. Background Art

[0002] At present, the anti-glare method of outdoor lighting fixtures is mainly achieved by adding baffles or sunshades to the lamps. However, this method has certain limitations in anti-glare effect and construction adjustment. First of all, although adding baffles or sunshades can reduce glare to a certain extent, it cannot fully achieve the ideal anti-glare effect at certain specific angles, especially in blind spots. This means that in practical applications, glare problems may still occur, affecting visual comfort and safety. Secondly, in order to achieve the best anti-glare effect, the anti-glare angle needs to be precisely adjusted during the construction process, which not only increases the complexity and time cost of construction, but also requires high professional skills of the installers. If the adjustment is not in place, the anti-glare effect will be greatly reduced and cannot meet actual needs.

[0003] Therefore, existing anti-glare methods face significant challenges in practical applications, and more efficient and convenient solutions are urgently needed. Utility Model Content

[0004] The utility model provides an automatic anti-glare driving circuit for an LED outdoor lamp, which is used to solve the defects in the prior art and realize the automatic anti-glare of the LED lamp.

[0005] The utility model provides an automatic anti-glare driving circuit for an LED outdoor lamp, comprising:

[0006] According to the utility model, an automatic anti-glare driving circuit for an LED outdoor lamp also includes a step-down module;

[0007] The step-down module is used to convert the input voltage into an operating voltage.

[0008] According to an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model, the voltage reduction module includes a first voltage stabilizing chip, a second voltage stabilizing chip and a filter capacitor;

[0009] The first voltage stabilizing chip is used to stabilize and step down the input voltage to 5V;

[0010] The second voltage stabilizing chip is used to stabilize and step down the 5V voltage output by the first voltage stabilizing chip to 3.3V;

[0011] The filter capacitor is used to filter noise in the input voltage.

[0012] According to an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model, the 3.3V voltage output by the second voltage stabilizing chip is used to power the automatic anti-glare driving circuit for an LED outdoor lamp.

[0013] According to an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model, the main control module is a STM32F103C8T6 single chip microcomputer.

[0014] According to an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model, the LED driving module includes a sampling resistor and a constant current chip;

[0015] The sampling resistor is used to adjust the output of the constant current chip.

[0016] According to an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model, the LED driving module also includes an LED patch light source and an energy storage filter capacitor.

[0017] According to an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model, the motor driving module includes a stepping motor and a motor driving chip;

[0018] The motor driving module is used to control the stepping motor according to the control instruction.

[0019] The utility model provides an automatic anti-glare driving circuit for an LED outdoor lamp, which determines the pedestrian position of a pedestrian through a radar module; determines a reference position through a gyroscope module; and then sends a control instruction to a motor driving module through a main control module according to the pedestrian position and the reference position, so as to drive the anti-glare disk to rotate to a specified position; the pedestrian position can be judged through this circuit, and an instruction is sent to the motor module based on the judged information, and the driving motor rotates to the corresponding position with the anti-glare disk according to the instruction sent by the main control module, so as to achieve the purpose of automatic anti-glare. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a module schematic diagram of the automatic anti-glare driving circuit of the LED outdoor lamp provided by the utility model;

[0022] Figure 2It is a circuit diagram of a voltage reduction module of an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model;

[0023] Figure 3 This is a circuit diagram of a main control module of an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model;

[0024] Figure 4 It is a circuit diagram of a radar module of an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model;

[0025] Figure 5 It is a circuit diagram of an LED driving module of an automatic anti-glare driving circuit for an LED outdoor lamp provided by the utility model;

[0026] Figure 6 The utility model discloses a circuit diagram of a motor drive module of an automatic anti-glare drive circuit for an LED outdoor lamp. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In order to solve the problems in the prior art, the utility model proposes an automatic anti-glare driving circuit for LED outdoor lamps to realize automatic anti-glare for outdoor lamps. The automatic anti-glare driving circuit for LED outdoor lamps is described below. Figure 1 As shown, including but not limited to the following modules: main control module, radar module, LED driver module, motor driver module and gyroscope module;

[0029] The radar module is used to determine the pedestrian position of the pedestrian;

[0030] The gyroscope module is used to determine a reference position;

[0031] The main control module is used to issue a control instruction to the motor drive module according to the pedestrian position and the reference position;

[0032] The motor driving module is used to drive the anti-glare disc to rotate to a specified position in response to the control instruction;

[0033] The radar module, the LED driving module, the gyroscope module and the motor driving module are all connected to the main control module.

[0034] The utility model provides an automatic anti-glare driving circuit for an LED outdoor lamp, which determines the pedestrian position of a pedestrian through a radar module; determines a reference position through a gyroscope module; and then sends a control instruction to a motor driving module through a main control module according to the pedestrian position and the reference position, so as to drive the anti-glare disk to rotate to a specified position; the pedestrian position can be judged through this circuit, and an instruction is sent to the motor module based on the judged information, and the driving motor rotates to the corresponding position with the anti-glare disk according to the instruction sent by the main control module, so as to achieve the purpose of automatic anti-glare.

[0035] As a further optional embodiment, it also includes a voltage reduction module;

[0036] The step-down module is used to convert the input voltage into an operating voltage.

[0037] As a further optional embodiment, the voltage reduction module includes a first voltage stabilizing chip, a second voltage stabilizing chip and a filter capacitor;

[0038] The first voltage stabilizing chip is used to stabilize and step down the input voltage to 5V;

[0039] The second voltage stabilizing chip is used to stabilize and step down the 5V voltage output by the first voltage stabilizing chip to 3.3V;

[0040] The filter capacitor is used to filter noise in the input voltage.

[0041] As a further optional embodiment, the 3.3V voltage output by the second voltage stabilizing chip is used to power the automatic anti-glare driving circuit of the LED outdoor lamp.

[0042] refer to Figure 2 , this module is the main power source for the main control module U1 (STM32F103C8T6), gyroscope module U2 (MPU9250) and millimeter microwave radar. The circuit is mainly composed of buck regulator chips U5 (XL1509), U6 (AMS117) and their peripheral circuits. The circuit first stabilizes the DC voltage input from the peripheral to 5VDC, and this 5V voltage is also used as the input voltage for the next level of voltage conversion. The second-level buck circuit converts the 5V voltage output from the first level to 3.3V as the power source for the main control module U1 (STM32F103C8T6). C2 and C4 are input filter capacitors, C8 and C9 are filter energy storage capacitors that output 5V voltage, and also serve as input capacitors for the U6 chip. C33, C32 and C31 are filter energy storage capacitors that output 3.3V voltage.

[0043] As a further optional embodiment, the main control module is a STM32F103C8T6 single chip microcomputer.

[0044] refer to Figure 3, U1 (STM32F103C8T6) is the central control system of the main control module, responsible for processing and coordinating various sub-modules. The radar module sends data to the M1 pin of U1, and the gyroscope sends data to the main control module through the three pin networks of SCL / SCLK, SDA / SDI and ADO / SDO. The main control module sets up a reference point through the gyroscope data, and obtains the specific location of the pedestrian in combination with the data sent by the radar module. Subsequently, the main control module sends commands to the motor module through the four network pins M2_1, M2_2, M2_3 and M2_4, so that the motor module executes the corresponding commands.

[0045] In addition, P1 is the program burning port, Y1 is the crystal oscillator, C15 and C17 are filter capacitors, R9 is the pull-up resistor, and R10 is the pull-down resistor.

[0046] refer to Figure 4 In the radar module, R16 is a current limiting resistor. When the radar module detects a pedestrian, it sends data to the main control module through the M1 pin;

[0047] As a further optional embodiment, the LED driving module includes a sampling resistor and a constant current chip;

[0048] The sampling resistor is used to adjust the output of the constant current chip.

[0049] As a further optional embodiment, the LED driving module also includes an LED chip light source and an energy storage filter capacitor.

[0050] refer to Figure 5 The module consists of constant current chip U7 (MBI6658), LED1-LED6 SMD light source and its peripheral circuit. C18 and C24 are energy storage filter capacitors, D10 is a freewheeling diode, and L5 is a filter inductor. RS8 and RS7 are sampling resistors. The output current of the constant current chip can be adjusted by adjusting the resistance value of RS8 and RS7. The formula is: I=R / 0.1 (I≤2A).

[0051] As a further optional embodiment, the motor driving module includes a stepping motor and a motor driving chip;

[0052] The motor driving module is used to control the stepping motor according to the control instruction.

[0053] refer to Figure 6This module consists of the motor driver chip U4 (DRV8841), the M1 stepper motor and its peripheral circuits. The U1 (STM32F103C8T6) main control system issues instructions to the U4 (DRV8841) motor driver chip through the four network pins M2_1, M2_2, M2_3 and M2_4. The U4 chip sends an enable signal to the M1 stepper motor through pins 5 (AOUT1), 7 (AOUT2), 8 (BOUT2) and 10 (BOUT1), so that the M1 stepper motor can achieve forward and reverse rotation. C1, C2, C25 and C10 are filter capacitors used to filter out noise in the circuit and ensure stable operation of the motor.

[0054] Based on the above embodiments, the principle of the present invention is now described:

[0055] When a pedestrian enters the detection range of the millimeter microwave radar module, the radar module will feed back the specific position of the pedestrian to the main control module. A gyroscope module is installed inside the lamp, which provides reference points to the microcontroller in real time. The main control module determines the position of the pedestrian based on the pedestrian position provided by the radar module and the reference point provided by the gyroscope module. Based on these judgments, the main control module issues instructions to the motor module, driving the motor to drive the anti-glare disk to rotate to the corresponding position, thereby achieving an automatic anti-glare effect.

[0056] Therefore, the automatic anti-glare driving circuit of the LED outdoor lamp provided by the utility model determines the pedestrian position of the pedestrian through the radar module; determines the reference position through the gyroscope module; then, according to the pedestrian position and the reference position, the main control module issues a control instruction to the motor driving module to drive the anti-glare disk to rotate to the specified position; the pedestrian position can be judged by this circuit, and the motor module is issued an instruction based on the judged information, and the driving motor rotates to the corresponding position with the anti-glare disk according to the instruction issued by the main control module, thereby achieving the purpose of automatic anti-glare.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An automatic anti-glare driving circuit for LED outdoor lamps, characterized in that: include: Main control module, radar module, LED driver module, motor driver module and gyroscope module; The radar module is used to determine the pedestrian position of the pedestrian; The gyroscope module is used to determine a reference position; The main control module is used to issue a control instruction to the motor drive module according to the pedestrian position and the reference position; The motor driving module is used to drive the anti-glare disc to rotate to a specified position in response to the control instruction; The radar module, the LED driving module, the gyroscope module and the motor driving module are all connected to the main control module.

2. The automatic anti-glare driving circuit for outdoor LED lamps according to claim 1, characterized in that: Also included is a step-down module; The step-down module is used to convert the input voltage into an operating voltage.

3. The automatic anti-glare driving circuit for outdoor LED lamps according to claim 2, characterized in that: The step-down module includes a first voltage stabilizing chip, a second voltage stabilizing chip and a filter capacitor; The first voltage stabilizing chip is used to stabilize and step down the input voltage to 5V; The second voltage stabilizing chip is used to stabilize and step down the 5V voltage output by the first voltage stabilizing chip to 3.3V; The filter capacitor is used to filter noise in the input voltage.

4. The automatic anti-glare driving circuit for outdoor LED lamps according to claim 3, characterized in that: The 3.3V voltage output by the second voltage stabilizing chip is used to power the automatic anti-glare driving circuit of the LED outdoor lamp.

5. The automatic anti-glare driving circuit for outdoor LED lamps according to claim 1, characterized in that: The main control module is a STM32F103C8T6 single chip microcomputer.

6. The automatic anti-glare driving circuit for outdoor LED lamps according to claim 1, characterized in that: The LED driving module includes a sampling resistor and a constant current chip; The sampling resistor is used to adjust the output of the constant current chip.

7. The automatic anti-glare driving circuit for outdoor LED lamps according to claim 6, characterized in that: The LED driving module also includes an LED chip light source and an energy storage filter capacitor.

8. The automatic anti-glare driving circuit for outdoor LED lamps according to claim 1, characterized in that: The motor drive module includes a stepper motor and a motor drive chip; The motor driving module is used to control the stepping motor according to the control instruction.

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