CN202634753U - A solar powered parking lot lighting system - Google Patents

Abstract

The utility model discloses a solar-powered parking lot lighting system, which comprises a LED lamp, and further comprises a solar panel, a light controller connected with the output end of the solar panel and an LED lamp connected with the output end of the light controller; the system further comprises a city power grid connected to the input end of the light controller. The light controller comprises a microcontroller, a modulation and demodulation circuit and a protection circuit which are in bidirectional communication connection with the microcontroller, an electric energy signal acquisition circuit which is in bidirectional connection with the modulation and demodulation circuit, and a power supply conversion circuit which is connected with the output end of the microcontroller. The utility model uses the light controller to replace the traditional battery, saves the production cost and the maintenance cost, and improves the power supply efficiency; the light controller is internally provided with the power supply conversion circuit, can automatically convert between solar power supply and a city power grid or supply power through solar energy and the city power grid in a complementary manner, is flexible in power supply, ensures normal illumination of the parking lot, and can ensure normal operation of the parking lot.

Description

A solar powered parking lot lighting system

technical field

The utility model relates to a lighting system for a parking lot, in particular to a lighting system for a parking lot powered by solar energy.

Background technique

The energy of solar energy comes from celestial bodies outside the earth. It is the huge energy released by the fusion of hydrogen nuclei in the sun at ultra-high temperature. Most of the energy needed by human beings comes directly or indirectly from the sun. Fossil fuels such as coal, oil, and natural gas that we need for life are all formed by plants and animals buried in the ground after a long geological age after converting solar energy into chemical energy through photosynthesis and storing it in the plant body. They are essentially solar energy fixed by ancient organisms.

Solar energy is a clean and renewable new energy source, which is more and more favored by people and has a wide range of functions in people's life and work. One of them is to convert solar energy into electrical energy, and solar cells use solar energy to work. The working principle of a solar thermal power station is to use the concentrated sunlight to boil water until it turns into water vapor, which is then used to generate electricity.

There are two types of solar power generation, one is solar power generation (also known as solar photovoltaic power generation), and the other is solar thermal power generation (also known as solar thermal power generation).

Solar photovoltaic power generation is a power generation method that directly converts solar energy into electrical energy. It includes four forms of photovoltaic power generation, photochemical power generation, photoinduction power generation and photobiological power generation. In photochemical power generation, there are electrochemical photovoltaic cells, photoelectrolytic cells and photocatalytic cells. Solar thermal power generation is to convert solar energy into thermal energy first, and then convert thermal energy into Electric energy, it has two conversion methods. One is to directly convert solar thermal energy into electrical energy, such as thermoelectric power generation of semiconductor or metal materials, thermal electron and thermoelectric ion power generation in vacuum devices, alkali metal thermoelectric conversion, and magnetic fluid power generation. Another way is to use solar thermal energy to drive a generator to generate electricity through a heat engine (such as a steam turbine), which is similar to conventional thermal power generation, except that the thermal energy does not come from fuel, but from solar energy.

With the improvement of people's living standards and the increasing number of vehicles, it is imperative to establish a complete parking lot system. However, with the process of urbanization and the scarcity of land resources, parking lots are generally set up underground. , the lighting system of the parking lot has become a crucial link. Lighting requires a large amount of electric energy, and solar energy is an available environmental protection resource. How to use solar energy to supply power and lighting for the parking lot has become a technical problem to be solved urgently by those skilled in the art. , It is also a matter of saving energy and creating effective value for the society.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a parking lot lighting system powered by solar energy, which saves electric energy, and can effectively switch between solar energy and grid power supply, ensuring the lighting of the parking lot.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a parking lot lighting system powered by solar energy, including LED lights, the parking lot lighting system further includes a solar panel, a light controller connected to the output end of the solar panel And the LED light connected with the output end of the light controller.

The solar-powered parking lot lighting system further includes a city power grid connected to the input end of the light controller.

Further, the light controller includes a microcontroller, a modulation and demodulation circuit and a protection circuit bidirectionally connected to the microcontroller, a power signal acquisition circuit bidirectionally connected to the modulation and demodulation circuit, and an output terminal connected to the microcontroller. power conversion circuit.

Further, the protection circuit includes an overvoltage protection circuit, an overcurrent protection circuit and an overload protection circuit.

Further, the power supply conversion circuit is a single-pole double-throw switch, one end is connected to the output end of the solar panel, and the other end is connected to the output end of the urban power grid.

Compared with the prior art, the beneficial effect of the utility model is: the light controller is used to replace the traditional battery, which saves the production cost and maintenance cost, and improves the power supply efficiency; the power supply conversion circuit is set in the light controller, which can automatically The conversion between solar power and urban power grid or complementary power supply through Tianyang Energy and urban power grid provides flexible power supply, which ensures the normal lighting of the parking lot and the normal operation of the parking lot.

Description of drawings

Fig. 1 is the principle structural representation of the utility model;

    Fig. 2 is a schematic diagram of the principle structure of the light controller of the present invention.

Detailed ways

The following will be described in detail with reference to the accompanying drawings in conjunction with the embodiments, so as to further explain the technical features and advantages of the present utility model.

The schematic diagram of the principle structure of the present utility model is shown in Figure 1. A solar-powered parking lot lighting system includes LED lights. The parking lot lighting system further includes a solar panel, a photocontroller connected to the output end of the solar panel, and LED lights connected to the output of the light controller.

The solar-powered parking lot lighting system further includes a city power grid connected to the input end of the light controller.

The principle structural diagram of the photocontroller of the present utility model is shown in Figure 2. The photocontroller includes a micro-controller, a modulation and demodulation circuit and a protection circuit connected to the micro-controller for two-way communication, and a two-way connection with the modulation and demodulation circuit. The electrical energy signal acquisition circuit and the power supply conversion circuit connected with the output terminal of the microcontroller.

Further, the protection circuit includes an overvoltage protection circuit, an overcurrent protection circuit and an overload protection circuit.

Further, the power supply conversion circuit is a single-pole double-throw switch, one end is connected to the output end of the solar panel, and the other end is connected to the output end of the urban power grid.

The control method of the solar-powered parking lot lighting system described in the utility model, its steps are as follows:

Step 1. The light controller collects the electric energy of the solar panel through the electric energy signal acquisition circuit, and sends it to the controller;

Step 2. The microcontroller calculates and analyzes the number of LED lights and the power required for power supply, and determines the amount of power that the existing solar panel can supply to the LED lights;

Step 3. If the electric energy of the solar panel is enough to supply power to the LED lamps, all solar power will be used for power supply. If the electric energy of the solar panel is less than the electric energy required by the LED lamps, the power supply conversion circuit will be activated;

Step 4. The power supply conversion circuit connects the urban power grid to the LED lamp power supply system, and supplies power to the LED lamp together with the solar panel.

Further, when the electric energy of the solar panel mentioned in step 3 is zero, all the electricity is supplied by the city power grid.

The energy absorbed by the solar panel is converted into electrical energy, which is direct current, which is sent to the photocontroller, and the photocontroller supplies power to the LED lights. When it is cloudy or rainy or at night, the power supply of the solar panel is insufficient. At this time, the power supply in the photocontroller is converted The circuit connects the urban power grid to the LED lamp power supply system, and together with the solar panel, supplies power to the LED lamp.

The utility model replaces the traditional battery with a light controller, which saves production cost and maintenance cost, and improves power supply efficiency; a power supply conversion circuit is set in the light controller, which can automatically switch between solar power supply and urban power grid or through Tianyang Complementary power supply with the urban power grid, flexible power supply, ensures the normal lighting of the parking lot, and can ensure the normal operation of the parking lot.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For those skilled in the art to which the utility model belongs, any simple modification or optimization without departing from the concept of the utility model should be regarded as the protection scope of the utility model.

Claims (5)

1. a solar powered parking lot illuminator comprises the LED lamp, it is characterized in that: light-controller that described parking lot illuminator further comprises solar panels, be connected with the solar panels output and the LED lamp that is connected with the light-controller output.

2. solar powered parking lot illuminator according to claim 1 is characterized in that: further comprise the urban distribution network that is connected the light-controller input.

3. solar powered parking lot illuminator according to claim 2; It is characterized in that: described light-controller comprises microcontroller; The modulation-demodulation circuit, the protective circuit that are connected with the microcontroller both-way communication reach the power supply change-over circuit that is connected with the microcontroller output with the two-way electric power signal Acquisition Circuit that is connected of modulation-demodulation circuit.

4. solar powered parking lot illuminator according to claim 3, it is characterized in that: described protective circuit comprises overvoltage crowbar, current foldback circuit and overload protecting circuit.

5. solar powered parking lot illuminator according to claim 4 is characterized in that: described power supply change-over circuit is a single-pole double-throw switch (SPDT), and an end connects the solar panels output, and the other end connects the urban distribution network output.

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