CN211184361U - Illumination control system - Google Patents

Abstract

The utility model discloses an illumination control system, which comprises a main control module, a storage battery module and a control module, wherein the main control module is respectively connected with the photovoltaic module and the storage battery module, and the photovoltaic module charges the storage battery module through the main control module; the sub-control module is respectively connected with the main control module and the storage battery module, the main control module and the sub-control module jointly act to achieve control and protection functions, and the storage battery module supplies power to the sub-control module; and the lighting module is respectively connected with the storage battery module and the main control module, and the storage battery module supplies power to the lighting module. Illumination control system, it utilizes original battery in the system to supply power and need not supply power alone, cost is reduced and usage space, and whole solar control system stable performance.

Description

Illumination control system

Technical Field

The utility model relates to a solar energy technical field especially relates to an illumination control system.

Background

The solar energy is an inexhaustible, clean, pollution-free and renewable green and environment-friendly energy. The photovoltaic energy is considered as the most important new energy in the twenty-first century because of the incomparable advantages of cleanness, high safety, relative universality and sufficiency of energy, long service life, maintenance-free property and the like which are not possessed by other conventional energy sources in the solar power generation. The solar street lamp does not need to lay cables, does not need to exchange power supply and does not generate electricity charge, adopts direct current power supply and control, has the advantages of good stability, long service life, high luminous efficiency, simple and convenient installation and maintenance, high safety performance, energy conservation, environmental protection, economy, practicality and the like, and is widely applied to places such as city main roads, secondary roads, districts, factories, tourist attractions, parking lots and the like.

At present, the lighting control system generally adopts an independent power supply and an adapter to supply power so as to ensure that the solar street lamp can normally work, but the independent power supply needs to maintain and replace the solar street lamp, so that the cost is increased, and meanwhile, the placing space of the lighting control system has a greater requirement.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of the above and/or the problems existing in the existing solar street lamp, the utility model discloses have been proposed.

Therefore, the to-be-solved technical problem of the present invention is to provide an illumination control system, which utilizes the original storage battery in the system to supply power without independent power supply.

In order to solve the technical problem, the utility model provides a following technical scheme: the lighting control system comprises a main control module, a storage battery module and a control module, wherein the main control module is respectively connected with a photovoltaic module and the storage battery module; the sub-control module is respectively connected with the main control module and the storage battery module, the main control module and the sub-control module jointly act to achieve control and protection functions, and the storage battery module supplies power to the sub-control module; and the lighting module is respectively connected with the storage battery module and the main control module, and the storage battery module supplies power to the lighting module.

As a preferred aspect of the lighting control system of the present invention, wherein: the battery management system further comprises a conversion module, wherein one end of the conversion module is connected with the storage battery module, the other end of the conversion module is connected with the sub-control module, and the output voltage provided by the storage battery module is matched with the rated voltage of the sub-control module.

As a preferred aspect of the lighting control system of the present invention, wherein: the main control module comprises a first switch and a second switch, the first switch is arranged at the output end of the photovoltaic module, and the second switch is arranged at the output end of the storage battery module.

As a preferred aspect of the lighting control system of the present invention, wherein: the main control module further comprises a first driving submodule, the first driving submodule is connected with the first switch and the sub-control module, and the sub-control module controls the working state of the first switch through the first driving submodule.

As a preferred aspect of the lighting control system of the present invention, wherein: the main control module further comprises a second driving submodule, the second driving submodule is connected with the second switch and the sub-control module, and the sub-control module controls the working state of the second switch through the second driving submodule.

As a preferred aspect of the lighting control system of the present invention, wherein: the main control module further comprises a filtering submodule which is connected in the main control module.

As a preferred aspect of the lighting control system of the present invention, wherein: the main control module further comprises a protection submodule which is arranged in the main control module.

As a preferred aspect of the lighting control system of the present invention, wherein: the protection submodule is provided with a protection member, and the protection member is connected with the storage battery module.

As a preferred aspect of the lighting control system of the present invention, wherein: the device also comprises an indicating module, wherein one end of the indicating module is connected with the sub-control module, and the other end of the indicating module is connected with the conversion module.

As a preferred aspect of the lighting control system of the present invention, wherein: the sub-control module is a single chip microcomputer.

The utility model has the advantages that: illumination control system, it utilizes original battery in the system to supply power and need not supply power alone, cost is reduced and usage space, and whole solar control system stable performance.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic diagram illustrating an overall connection of a lighting control system according to an embodiment of the present invention;

fig. 2 is a circuit diagram of a conversion module of the lighting control system according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating an overall connection of the lighting control system according to an embodiment of the present invention;

fig. 4 is a diagram of a connection pin of a sub-control module part of the lighting control system according to an embodiment of the present invention;

fig. 5 is a circuit diagram of a master control module of the lighting control system according to an embodiment of the present invention;

fig. 6 is a circuit diagram of a first driving sub-module of the lighting control system according to an embodiment of the present invention;

fig. 7 is a circuit diagram of an indication module of an embodiment of the lighting control system provided by the present invention;

fig. 8 is a schematic diagram illustrating an overall connection of the lighting control system according to an embodiment of the present invention;

fig. 9 is an overall circuit diagram of the lighting control system according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1, an illumination control system includes a main control module 100, a photovoltaic module 200, a storage battery module 300, a sub-control module 400 and an illumination module 500, wherein the main control module 100 is respectively connected to the photovoltaic module 200 and the storage battery module 300, and the photovoltaic module 200 charges the storage battery module 300 through the main control module 100; the sub-control module 400 is respectively connected with the main control module 100 and the storage battery module 300, the main control module 100 and the sub-control module 400 jointly act to achieve control and protection functions, and the storage battery module 300 supplies power to the sub-control module 400; the lighting module 500 is connected to the battery module 300 and the main control module 100, respectively, and the battery module 300 supplies power to the lighting module 500.

In this embodiment, the photovoltaic module 200 is a solar panel, which is a core part of the solar street lamp and is also a part with the highest value in the solar street lamp. The function of the solar energy collector is to convert the radiation energy of the sun into electric energy or send the electric energy to a storage battery for storage. The solar cell mainly uses monocrystalline silicon and polycrystalline silicon as materials. The photoelectric conversion efficiency of the monocrystalline silicon is 13% -15%, and the polycrystalline silicon is 11% -13%. Current state of the art also includes photovoltaic thin film cells.

The battery module 300 is a battery, and generally needs to be configured with a battery system to work because the input energy of the solar photovoltaic power generation system is very unstable. Generally, lead-acid batteries, Ni-Cd batteries, and Ni-H batteries are available. The selection of the battery capacity generally follows the following principle: firstly, on the premise of meeting the requirement of night illumination, the energy of the solar cell module in the daytime is stored as much as possible, and meanwhile, the electric energy meeting the requirement of continuous rainy day and night illumination is stored. The demand of illumination at night can not be satisfied to the battery capacity undersize, and the capacity is too big, and the battery is in insufficient voltage state all the time on the one hand, influences the battery life-span, causes the waste simultaneously. The storage battery is matched with a solar battery and a power load (street lamp). The relationship between them can be determined in a simple way: the power of the solar cell is higher than the load power by more than 4 times, the system can normally work, the voltage of the solar cell exceeds the working voltage of the storage battery by 20-30 percent to ensure the normal negative electricity of the storage battery, and the capacity of the storage battery is higher than the daily consumption of the load by more than 6 times.

The types of batteries that can be selected are: lead acid batteries (valve-regulated maintenance-free batteries), gel batteries (sulfuric acid electrolyte becomes a gel by adding a gelling agent to sulfuric acid), and lithium batteries. The lead-acid battery has the advantages of stable electromotive force during discharging, stable working voltage, wide application temperature and current range, good storage performance and low cost. Here, a lead-acid battery with a rated voltage of 24V is selected for cost.

The lighting module 500 is a lamp, which kind of lamp is adopted by the solar street lamp is an important index for whether the solar street lamp can be normally used, and the solar street lamp generally adopts a low-voltage energy-saving lamp, a low-voltage sodium lamp, an electrodeless lamp and an L ED lamp, wherein the L ED lamp is preferably selected here, the L ED lamp has long service life which can reach 1000000 hours, the working voltage is low, an inverter is not needed, the lighting effect is high, 50lm/W is produced in China, 80lm/W is imported, and the performance of L ED is further improved along with the technical progress.

The main control module 100 and the sub-control module 400 are the core of the lighting control system, and mainly serve as control circuits and circuit elements thereof, the storage battery module 300 can supply power to the sub-control module 400 to ensure normal operation thereof, and the main control module 100 is connected with the photovoltaic module 200 and the storage battery module 300 without independent power supply.

Example 2

Referring to fig. 2 to 4, an illumination control system includes a main control module 100, a photovoltaic module 200, a storage battery module 300, a sub-control module 400, an illumination module 500, and a conversion module 600, wherein the main control module 100 is connected to the photovoltaic module 200 and the storage battery module 300, respectively, and the photovoltaic module 100 charges the storage battery module 300 through the main control module 100; the sub-control module 400 is respectively connected with the main control module 100 and the storage battery module 300, the main control module 100 and the sub-control module 400 jointly act to achieve the control and protection functions, and the storage battery module 300 supplies power to the sub-control module 400; the lighting module 500 is respectively connected with the storage battery module 300 and the main control module 100, and the storage battery module 300 supplies power to the lighting module 500; the conversion module 600 has one end connected to the battery module 300 and the other end connected to the sub-control module 400, so that the output voltage provided by the battery module 300 matches the rated voltage of the sub-control module 400.

Referring to fig. 4, in the present embodiment, the sub-control module 400 is a single chip microcomputer, which is P87L PC767, and P87L PC767 is a 20-pin packaged single chip microcomputer, and is suitable for many occasions requiring high integration and low cost, and can meet many requirements.

Referring to FIG. 2, the conversion module 600 isA conversion circuit, its function is vary voltage, from the angle design of the limited cost, the supply voltage of the single-chip computer of this circuit transformation through L M317 three-terminal adjustable voltage regulator, refer to fig. 3. L M317 is one of the most widely used power integrated circuit, it not only has the simplest form of the fixed three-terminal voltage regulator, but also has the characteristic of adjustable output voltage, in addition, it has wide range of voltage regulation, good voltage regulation performance, low noise, high advantage such as ripple rejection ratio, etc. its market price is stabilized about 1 yuan at present, L M317 is three-terminal adjustable positive voltage regulator, its output voltage range is 1.25-37V, only need 2 external resistors can set up the output voltage, provide the reference voltage V of 1.25V between the output terminal Vout of L M317 and the regulation terminal adj_REFThe output voltage satisfies the formula: Vout-V_REF(1+R2/R1)。

It should be noted that, because the voltage difference between the input and the output of L M317 is 40V, and the open-circuit voltage of the solar cell may reach 50V for the input voltage of the 24V storage battery, in order to avoid the transient overvoltage, the input end of L M317 is connected with the voltage regulator D13 for protection.

A zener diode is a surface contact type transistor diode made of silicon material, and is called a zener diode for short. The diode is a semiconductor device having a high resistance up to a critical reverse breakdown voltage. When the voltage regulator tube is in reverse breakdown, the terminal voltage is almost unchanged in a certain current range (or a certain power loss range), and the voltage regulator tube shows voltage-stabilizing characteristics, so that the voltage regulator tube is widely applied to voltage-stabilizing power supplies and amplitude limiting circuits.

Example 3

Referring to fig. 4 to 9, an illumination control system includes a main control module 100, a photovoltaic module 200, a storage battery module 300, a sub-control module 400, an illumination module 500, and a conversion module 600, where the main control module 100 is connected to the photovoltaic module 200 and the storage battery module 300, respectively, and the photovoltaic module 200 charges the storage battery module 300 through the main control module 100; the sub-control module 400 is respectively connected with the main control module 100 and the storage battery module 300, the main control module 100 and the sub-control module 400 jointly act to achieve the control and protection functions, and the storage battery module 300 supplies power to the sub-control module 400; the lighting module 500 is respectively connected with the storage battery module 300 and the main control module 100, and the storage battery module 300 supplies power to the lighting module 500; the conversion module 600 has one end connected to the battery module 300 and the other end connected to the sub-control module 400, so that the output voltage provided by the battery module 300 matches the rated voltage of the sub-control module 400.

Further, the main control module 100 includes a first switch 101, a second switch 102, a first driving submodule 103, a second driving submodule 104, a filtering submodule 105 and a protection submodule 106, the first switch 101 is disposed at an output end of the photovoltaic module 200, the second switch 102 is disposed at an output end of the storage battery module 300, the first driving submodule 103 is connected to the first switch 101 and the sub-control module 400, the sub-control module 400 controls a working state of the first switch 101 through the first driving submodule 103, the second driving submodule 104 is connected to the second switch 102 and the sub-control module 400, the sub-control module 400 controls a working state of the second switch 102 through the second driving submodule 104, the filtering submodule 105 is connected to the main control module 100, the protection submodule 106 is disposed in the main control module 100, the protection submodule 106 is provided with a protection member 106a, and the protection member 106a is connected to the storage battery module 300. Referring to FIG. 5, Vin + terminal and Vin-terminal photovoltaic module, Vout + terminal and Vout-terminal lighting module 500.

In this embodiment, the first switch 101 and the second switch 102 both use MOSFET transistors, which are metal-oxide semiconductor field effect transistors, abbreviated as MOSFET, and are field effect transistors that can be widely used in analog circuits and digital circuits. The first switch 101 is connected in parallel to the output end of the photovoltaic module 200, and when the voltage of the storage battery is charged to the uniform charging voltage value, the first switch 101 enters a pulse width modulation state to avoid overcharging of the storage battery. The second switch 102 is a battery discharge switch, and when the lead-acid battery is discharged and the battery voltage is lower than the "over-discharge voltage", the second switch 102 is turned off to cut off the circuit between the battery and the lighting module 500, so as to perform the "over-discharge protection", thereby preventing the battery from being empty and damaging the battery. When the photovoltaic module 200 is re-powered, the second switch 102 is re-turned on to complete the circuit of the lighting module 500 only when the battery voltage is re-raised to the float voltage.

The first driving submodule 103 and the second driving submodule 104 are both driving circuits, and have the same structure, referring to fig. 6, P87L PC767 provides gate control signals of the first switch 101 and the second switch 102, taking the control of the first switch 101 as an example, when pin P1.6 No. 3 of P87L PC767 outputs high level, the first switch 101 is turned on, the gate driving signal Vgs1 of the first switch 101 is pulled low, and the first switch 101 is turned off, because the gate driving voltage of the first switch 101 cannot exceed 20V, when the P1.6 output is low level, the triode V5 is turned off, and the battery voltage is divided by R3 and R4 to generate the driving signal of the first switch 101.

The P87L PC767 should have light control function, that is, when sunlight exists, the second switch 102 is turned off, when light is insufficient at night or in rainy days, the second switch 102 is turned on, and the street lamp is illuminated, because the output voltage of the photovoltaic module 200 is reduced significantly when light is insufficient, the light condition can be judged by measuring the divided voltage of the output voltage, and the light condition can be used as a judgment basis for turning on and off the second switch 102.

The filter submodule 105 is formed by two high frequency filter capacitors connected in parallel, typically 0.01 μ F and 470 μ F. The filtering submodule is used for filtering high-frequency clutter generated between the photovoltaic module 200 and the lighting module 500 and reducing interference on the single chip microcomputer and the system.

The protection submodule 106 mainly comprises two diodes D1 and D2, the protection element 106a is a fuse, the protection element D1 is an anti-reverse charging diode, only when the output voltage of the photovoltaic module 200 is higher than the voltage of the storage battery, the protection element D1 can be conducted, otherwise, the protection element D1 is cut off, so that the storage battery can not be reversely charged to the solar battery matrix at night or in rainy days, and the effect of anti-reverse charging protection is achieved. D2 is "reverse connection prevention diode", when the polarity of the storage battery is reverse, D2 is conducted, so that the storage battery is discharged through the short circuit of D2, a large current is generated, the protection piece 106a is quickly blown, and the reverse connection prevention protection effect of the storage battery is achieved.

Preferably, the lighting control system further comprises an indication module 700, wherein one end of the indication module 700 is connected to the sub-control module 400, and the other end is connected to the conversion module 600.

The indication module 700 is mainly composed of 4 light emitting diodes, referring to fig. 7, the 4 light emitting diodes respectively correspond to 100%, 75%, 50% and 25% of the battery capacity, after the terminal voltage of the battery is measured, the on-off condition of the 4 light emitting diodes is determined according to the value of the terminal voltage, it is pointed out that when the battery is charged, the terminal voltage and the capacity are not directly related, the indication of the light emitting diodes has no practical meaning, and only when the battery is discharged, the terminal voltage can reflect the battery capacity to a certain extent.

It should be noted that the second driving submodule 104 is connected to pin P1.7 No. 2 of P87L PC767, the upper connection terminal is connected to the VB terminal of the battery module 300, the output terminal is connected to the Vgs2 terminal of the second switch 102, and other connection modes form an integral control system with reference to the drawings.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. A lighting control system, characterized by: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the main control module (100) is respectively connected with the photovoltaic module (200) and the storage battery module (300), and the photovoltaic module (200) charges the storage battery module (300) through the main control module (100);

the sub-control module (400) is respectively connected with the main control module (100) and the storage battery module (300), the main control module (100) and the sub-control module (400) jointly act to achieve control and protection functions, and the storage battery module (300) supplies power to the sub-control module (400);

and the lighting module (500) is respectively connected with the storage battery module (300) and the main control module (100), and the storage battery module (300) supplies power to the lighting module (500).

2. The lighting control system of claim 1, wherein: also comprises the following steps of (1) preparing,

one end of the conversion module (600) is connected with the storage battery module (300), and the other end of the conversion module (600) is connected with the sub-control module (400), so that the output voltage provided by the storage battery module (300) is matched with the rated voltage of the sub-control module (400).

3. The lighting control system of claim 2, wherein: the main control module (100) comprises a first switch (101) and a second switch (102), the first switch (101) is arranged at the output end of the photovoltaic module (200), and the second switch (102) is arranged at the output end of the storage battery module (300).

4. The lighting control system of claim 3, wherein: the main control module (100) further comprises a first driving submodule (103), the first driving submodule (103) is connected with the first switch (101) and the sub-control module (400), and the sub-control module (400) controls the working state of the first switch (101) through the first driving submodule (103).

5. The lighting control system of claim 4, wherein: the main control module (100) further comprises a second driving submodule (104), the second driving submodule (104) is connected with the second switch (102) and the sub-control module (400), and the sub-control module (400) controls the working state of the second switch (102) through the second driving submodule (104).

6. The lighting control system of claim 5, wherein: the main control module further comprises a filtering submodule (105), and the filtering submodule (105) is connected in the main control module (100).

7. The lighting control system of claim 6, wherein: the main control module (100) further comprises a protection submodule (106), and the protection submodule (106) is arranged in the main control module (100).

8. The lighting control system of claim 7, wherein: the protection submodule (106) is provided with a protection element (106a), and the protection element (106a) is connected with the storage battery module (300).

9. The lighting control system of claim 8, wherein: also comprises the following steps of (1) preparing,

and one end of the indicating module (700) is connected with the sub-control module (400), and the other end of the indicating module (700) is connected with the conversion module (600).

10. The lighting control system of claim 1, wherein: the sub-control module (400) is a single chip microcomputer.

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