CN107166330A - A kind of adaptive photoelectric mixed optical fiber illuminator and method - Google Patents

Abstract

The self-adaptive photoelectric hybrid optical fiber lighting system of the present invention includes: light intensity acquisition module, infrared input module, single-chip microcomputer, sunlight tracking module, stepper motor drive module, stepper motor, solar concentrator, fiber optic light source generator, fiber optic lighting module, power module and display module. This system adopts photoelectric hybrid lighting, uses the solar light tracking module to obtain the position information of the sun's rays, adjusts the duty cycle of the PWM pulse through the single-chip microcomputer, controls the rotation angle of the stepper motor rotor, and drives the condenser to obtain the best intensity of sunlight into the optical fiber The lighting module performs lighting. When the sunlight is insufficient, the fiber optic light source generator is used to supplement the light intensity, so as to realize the energy saving and environmental protection of the lighting system with natural light as the priority. In the lighting method of the invention, the light intensity sensor is used to monitor the light intensity in the room in real time, and the closed-loop control based on PID realizes the self-adaptive adjustment of the light intensity in the room.

Description

An adaptive photoelectric hybrid fiber optic lighting system and method

technical field

The invention belongs to the technical field of lighting systems, and in particular relates to an adaptive photoelectric hybrid optical fiber lighting system and method.

Background technique

The lighting system is closely related to our life. With the development of the economy and the advancement of science and technology, people's demand for a safer, more energy-saving and smarter lighting system is increasing day by day. The existing traditional lighting method is to transmit electric energy to the load through the transmission wire to make the load emit light and provide lighting. This makes the traditional lighting system have the potential safety hazard of fire caused by aging lines, and has the disadvantage that the lighting brightness cannot be automatically adjusted, resulting in energy waste.

Optical fiber lighting is a safer lighting method. It uses optical elements such as lenses and mirrors to change the propagation direction infinitely, realizes the flexible propagation of light and realizes photoelectric separation, which greatly improves the safety of lighting. In the patent publication number CN205540300U, a fiber optic lighting system that automatically tracks the sun is proposed, which reduces the dependence on electric energy to a certain extent by automatically tracking and collecting sunlight, and realizes energy saving and emission reduction. However, there is a problem that the system cannot provide lighting when it is cloudy or at night. At present, there is no fiber optic lighting system in China that can automatically track the sun during the day and control electroluminescence at night to achieve all-weather adaptive control.

Contents of the invention

Embodiments of the present invention provide an adaptive photoelectric hybrid optical fiber lighting system and method. The system is based on optical fiber lighting, and uses sunlight lighting as a priority, and is combined with lighting optical fibers to keep the total indoor illuminance constant. It is a safe and energy-saving lighting system. New lighting method.

The invention provides an adaptive photoelectric hybrid optical fiber lighting system, comprising:

The solar concentrator receives the sunlight signal through the concentrator;

The optical fiber lighting module is connected with the solar concentrator for conducting light signals to realize indoor adaptive lighting;

The light intensity acquisition module is used to collect the actual light intensity in the room;

Infrared input module, which simulates the optimal light intensity in the room by sending infrared signals;

The single-chip microcomputer compares the actual light intensity with the optimum light intensity, and when the actual light intensity is not equal to the optimum light intensity, outputs the first PWM control signal to adjust the angle of the condenser to change the obtained light intensity; after the adjustment When the actual light intensity is always less than the optimum light intensity, the second PWM control signal is output;

A stepper motor drive module, controlling the stepper motor according to the first PWM control signal to adjust the angle of the condenser;

A fiber optic light source generator, connected to the fiber optic lighting module, outputs an excitation light signal according to a second PWM control signal;

The solar light tracking module is used to track the position of the sun and control the stepping motor through the stepping motor drive module to adjust the angle of the concentrator of the solar concentrator so as to capture the position of the sun.

In the self-adaptive photoelectric hybrid optical fiber lighting system of the present invention, the system further includes a PWM control circuit connected to the single chip microcomputer and the optical fiber light source generator respectively.

In the self-adaptive photoelectric hybrid optical fiber lighting system of the present invention, the light intensity collection module includes a light intensity sensor and a signal converter.

In the adaptive photoelectric hybrid optical fiber lighting system of the present invention, the infrared input module includes an infrared receiving head, an infrared remote controller and a signal converter.

In the adaptive photoelectric hybrid optical fiber lighting system of the present invention, the solar tracking module includes a detection head and a control box, the control box is a waterproof shell with a transparent upper cover, and the control box has a built-in circuit composed of a controller and a display screen.

In the self-adaptive photoelectric hybrid optical fiber lighting system of the present invention, the stepper motor drive module includes a stepper motor driver and its peripheral circuits.

In the self-adaptive photoelectric hybrid optical fiber lighting system of the present invention, the system further includes a power supply module connected to the single chip microcomputer, the solar light tracking module and the stepper motor drive module respectively.

In the adaptive photoelectric hybrid optical fiber lighting system of the present invention, the power module includes a rectifier circuit, a filter circuit, a 24V voltage stabilizing circuit for powering the stepper motor drive module and a solar tracking module, and a 3.3V voltage regulator circuit for powering the single-chip microcomputer control module. Regulator circuit.

In the self-adaptive photoelectric hybrid optical fiber lighting system of the present invention, the system further includes a display module connected with a single-chip computer.

The present invention also provides an adaptive photoelectric hybrid optical fiber lighting method, comprising the following steps:

Collect the actual light intensity in the room in real time, and simulate the optimal light intensity in the room by sending infrared signals;

The single-chip microcomputer compares the actual light intensity with the optimum light intensity, and outputs the first PWM control signal when the actual light intensity is not equal to the optimum light intensity;

According to the first PWM control signal, the stepping motor is controlled to adjust the angle of the condenser to change the intensity of the acquired light, and transmit the sunlight signal to realize indoor adaptive lighting;

When the actual light intensity is always lower than the optimal light intensity after adjustment, the single-chip microcomputer outputs the second PWM control signal, and the fiber optic light source generator outputs the excitation light signal according to the second PWM control signal, and transmits the sunlight signal and the excitation light signal to realize indoor self-adaptation illumination.

The self-adaptive photoelectric hybrid optical fiber lighting system and method of the present invention integrates the self-adaptive photoelectric hybrid technology and the optical fiber lighting system, uses a single-chip microcomputer to control the output of the optical fiber lighting source part, effectively and preferentially utilizes sunlight, and completely adopts the optical fiber lighting method, eliminating Traditional lighting system transmission wires are prone to safety hazards of aging and fire, making full use of sunlight, reducing dependence on electric energy, ensuring all-weather lighting adaptive control, avoiding energy waste caused by excessive lighting, and realizing energy saving and intelligent lighting systems.

Description of drawings

Fig. 1 is the application schematic diagram of self-adaptive optoelectronic hybrid optical fiber lighting system of the present invention;

Fig. 2 is the structural block diagram of self-adaptive optoelectronic hybrid optical fiber lighting system of the present invention;

Fig. 3 is a flow chart of the self-adaptive photoelectric hybrid fiber lighting method of the present invention.

detailed description

Figure 1 is a schematic diagram of the application of the self-adaptive photoelectric hybrid optical fiber lighting system of the present invention. The system is based on optical fiber lighting, which can automatically track sunlight during the day, and switch at night to control the fiber optic light source generator to provide light to achieve all-weather adaptive lighting. The transmission is separated from the transmission of light, which greatly improves the lighting safety.

Fig. 2 is the block diagram of the structure of the self-adaptive photoelectric hybrid optical fiber lighting system of the present invention, as shown in the figure, the self-adaptive photoelectric hybrid optical fiber lighting system of the present invention comprises: light intensity acquisition module 1, infrared input module 2, single-chip microcomputer 3, sun Light tracking module 4 , stepper motor drive module 5 , stepper motor 6 , solar concentrator 7 , PWM control module 8 , fiber optic light source generator 9 , fiber optic lighting module 10 , power module 11 and display module 12 . Both the output end of the light intensity acquisition module 1 and the output end of the infrared input module 2 are connected to the input end of the single-chip microcomputer 3 . The output terminals of the single chip microcomputer 3 are respectively connected with the stepper motor drive module 5 , the PWM control module 8 and the display module 12 . The PWM control module 8 is connected with the fiber optic light source generator 9 . The output end of the solar light tracking module 4 is connected with the stepper motor drive module 5; the output end of the stepper motor drive module 5 is connected with the input end of the stepper motor 6, and the rotor of the stepper motor 6 is in phase with the solar concentrator 7 connect. The output end of the solar concentrator 7 and the output end of the fiber optic light source generator 9 are connected with the fiber optic lighting module 10 to deliver light to the room to realize adaptive lighting. The input terminal of the power supply module 11 is connected to the mains 220V, and the power supply module 11 is respectively connected with the single-chip microcomputer 3, the solar tracking module 4 and the stepping motor drive module 5 to provide power for them. The power supply module 11 includes a rectifying circuit, a filter circuit, a 24V voltage stabilizing circuit for supplying power to the stepping motor drive module 5 and the solar tracking module 4 and a 3.3V voltage stabilizing circuit for supplying power to the single chip microcomputer 3 . The display module 12 is used to display information such as indoor real-time light intensity, optimal light intensity setting value, light intensity provided by external sunlight, and light intensity provided by the fiber optic light source generator 9 .

The solar concentrator 7 is provided with a condenser and receives sunlight signals and filters harmful light through the condenser. The fiber optic lighting module 10 is respectively connected with the solar concentrator 7 and the fiber optic light source generator 9 for conducting light signals to realize indoor adaptive lighting. The light intensity acquisition module 1 includes a light intensity sensor and a signal converter. The light intensity sensor is used to collect the actual light intensity in the room. The signal converter converts the light signal into a digital signal, and sends it to the single chip microcomputer 3 after digital signal processing. The infrared input module 2 includes an infrared receiving head, an infrared remote controller and a signal converter. The infrared remote controller sends an infrared analog signal to transmit the indoor optimal light intensity setting value to the infrared receiving head. The signal converter in the infrared input module 2 converts the infrared The analog signal is converted into a digital signal, and sent to the single-chip microcomputer 3 after digital signal processing. The single-chip microcomputer 3 first compares the actual light intensity with the optimum light intensity, and when the actual light intensity is not equal to the optimum light intensity, the single-chip microcomputer 3 outputs the first PWM control signal. The stepping motor drive module 5 is connected with the single-chip microcomputer 3 and the stepping motor 6 respectively, and the stepping motor driving module 5 controls the stepping motor 6 according to the first PWM control signal output by the single-chip microcomputer 3 to adjust the angle of the condenser and then change the obtained Light intensity, the indoor light intensity meets the best light intensity. After the above adjustments, if the actual light intensity is always lower than the optimal light intensity, the single-chip microcomputer 3 outputs a second PWM control signal to start the fiber optic light source generator 9 for light supplementation. The PWM control module 8 is connected with the single-chip microcomputer 3 and the optical fiber light source generator 9 respectively, and after receiving the second PWM control signal output by the single-chip microcomputer 3, the PWM control module 8 adjusts the duty cycle of the second PWM control signal and outputs it to the optical fiber light source generator 9. Change the light intensity output by the fiber optic light source generator 9 so that the fiber optic light source generator 9 provides the most suitable light intensity. The solar light tracking module 4 is used to track the position of the sun and controls the stepping motor 6 through the stepping motor drive module 5 to adjust the angle of the condenser cover of the solar concentrator 7 so that the solar concentrator 7 captures the position of the sun. The solar light tracking module 4 mainly includes a detection head and a control box. The control box adopts a waterproof casing with a transparent upper cover, and a circuit composed of a built-in controller, a liquid crystal display and other components. The detection head introduces the five-core signal, judged by the built-in program of the circuit, and makes corresponding drive execution according to the corresponding situation. The detection head interface on the control box is connected to the detection head. The positive interface of the power supply is powered by +12V power supply. The east-west axis motor of the controller The output terminal is connected to the east-west axis input end of the stepping motor 6, and the north-south axis motor output terminal is connected to the north-south axis input end of the stepping motor 6.

During specific implementation, the light intensity sensor of the light intensity acquisition module 1 adopts the model BH1750FVI. The infrared receiving head of the infrared input module 2 adopts the TL1838 model, and the single-chip microcomputer 3 is a 32-bit single-chip microcomputer, which adopts the STM32F407ZGT6 model. The stepper motor driver of the stepper motor driver module 5 adopts the DM542 model. The stepping motor 6 adopts the J-5718HB6401 model. The fiber optic light source generator 9 adopts the 45W-1 model. The display module 12 adopts an OLED display. The fiber optic lighting module 10 adopts PMMA lighting fiber.

Fig. 3 is a flow chart of the self-adaptive photoelectric hybrid fiber lighting method of the present invention. The lighting method specifically includes the following steps:

Collect the actual light intensity in the room in real time, and simulate the optimal light intensity in the room by sending infrared signals;

Comparing the actual light intensity and the optimum light intensity by the single chip microcomputer, when the actual light intensity and the optimum light intensity are not equal, outputting the first PWM control signal;

controlling the stepper motor according to the first PWM control signal to adjust the angle of the condenser to change the intensity of the acquired light, and output the sunlight signal;

When the actual light intensity after adjustment is always lower than the optimal light intensity, the single-chip microcomputer outputs the second PWM control signal, and the optical fiber light source generator outputs the excitation light signal according to the second PWM control signal;

Conducting sunlight signals and/or excitation light signals for indoor adaptive lighting.

In the present invention, the integrated control realization process of the single-chip microcomputer to the system is as follows:

The single-chip microcomputer 3 realizes the control of the photoelectric mixed lighting process with the priority of using sunlight lighting. The main task is to use the actual light intensity information and the optimal light intensity setting information collected by the light intensity acquisition module 1 as control variables, and use the PID control based The photoelectric mixed lighting algorithm with sunlight lighting priority realizes indoor lighting control. When the actual light intensity is equal to the optimum light intensity, continue to monitor the actual light intensity. When the actual light intensity is not equal to the optimal light intensity, realize firstly by adjusting the solar concentrator 7 to make full use of the external sunlight to provide the light intensity, and pass it into the indoor optical fiber lighting module 10 for lighting; when the solar light collected by the solar concentrator 7 When excessive, control the rotation angle of the stepper motor 6 to reduce the sunlight intensity introduced into the fiber optic lighting module 10 to provide the best indoor lighting intensity; when the external sunlight is insufficient, the fiber optic light source generator 9 is activated, and the indoor light intensity Supplement; at the same time, the indoor real-time light intensity, the optimal light intensity setting value, the light intensity provided by the external sunlight, and the light intensity provided by the fiber optic light source generator 9 are displayed on the display module 12 .

Claims (10)

1. a kind of adaptive photoelectric mixed optical fiber illuminator, it is characterised in that including：

Solar concentrator, sun optical signal is received by snoot；

Fiber-optic lighting modules, are connected for conducting optical signal to realize indoor adaptive illumination with solar concentrator；

Intensity of illumination acquisition module, the actual intensity of illumination for gathering interior；

Infrared input module, by sending the optimum illumination intensity in infrared signal simulating chamber；

Single-chip microcomputer, is contrasted to actual intensity of illumination and optimum illumination intensity, when actual intensity of illumination and optimum illumination intensity When unequal, the intensity of illumination that the first pwm control signal of output is obtained with the angle and then change that adjust snoot；Pass through adjustment When actual intensity of illumination is consistently less than optimum illumination intensity afterwards, the second pwm control signal is exported；

Driving stepper motor module, controls stepper motor to realize the angle to snoot according to first pwm control signal Adjustment；

Optical fiber light source generator, is connected with the fiber-optic lighting modules, and exciting light letter is exported according to the second pwm control signal Number；

Sunshine tracing module, for following the trail of position of sun and controlling stepper motor to adjust too by driving stepper motor module It is positive can concentrator snoot angle so that capture position of sun.

2. adaptive photoelectric mixed optical fiber illuminator as claimed in claim 1, it is characterised in that the system also includes dividing The pwm control circuit not being connected with single-chip microcomputer and optical fiber light source generator.

3. adaptive photoelectric mixed optical fiber illuminator as claimed in claim 1, it is characterised in that the intensity of illumination collection Module includes light intensity sensor and signal adapter.

4. adaptive photoelectric mixed optical fiber illuminator as claimed in claim 1, it is characterised in that the infrared input module Including infrared receiving terminal, IR remote controller and signal adapter.

5. adaptive photoelectric mixed optical fiber illuminator as claimed in claim 1, it is characterised in that sunshine tracing module bag Detection head and control box are included, control box is the waterproof case using transparent upper cover, control box built-in controller and display screen composition Circuit.

6. adaptive photoelectric mixed optical fiber illuminator as claimed in claim 1, it is characterised in that described stepper motor drives Dynamic model block includes stepper motor driver and its peripheral circuit.

7. adaptive photoelectric mixed optical fiber illuminator as claimed in claim 1, it is characterised in that the system also includes dividing The power module not being connected with single-chip microcomputer, sunshine tracing module and driving stepper motor module.

8. adaptive photoelectric mixed optical fiber illuminator as claimed in claim 6, it is characterised in that the power module includes Rectification circuit, filter circuit, the 24V mu balanced circuits powered to driving stepper motor module and sunshine tracing module, to monolithic The 3.3V mu balanced circuits that machine control module is powered.

9. photoelectric mixed optical fiber illuminator as claimed in claim 1 adaptive, it is characterised in that the system also include with The display module of single-chip microcomputer connection.

10. a kind of adaptive photoelectric mixed optical fiber means of illumination, it is characterised in that comprise the following steps：

Indoor actual intensity of illumination is gathered in real time, by sending the optimum illumination intensity in infrared signal simulating chamber；

Single-chip microcomputer is contrasted to actual intensity of illumination and optimum illumination intensity, when actual intensity of illumination and optimum illumination intensity not When equal, the first pwm control signal is exported；

Stepper motor is controlled according to the first pwm control signal to adjust the angle of snoot and then change the intensity of illumination obtained, Transfer sun optical signal realizes indoor adaptive illumination；

By the way that when actual intensity of illumination is consistently less than optimum illumination intensity after adjustment, single-chip microcomputer exports the second pwm control signal, light Fibre source generator exports optical excitation signal according to the second pwm control signal, and transfer sun optical signal and optical excitation signal are with reality Existing indoor adaptive illumination.