KR20220136698A - Solar street light controller equipped with grid power connection and wireless management function - Google Patents

Abstract

The present invention relates to a solar street light controller equipped with a grid power connection and wireless management function and, more specifically, to a solar street light controller equipped with a grid power connection and wireless management function, which normally charges a battery with electricity generated by a solar cell module to operate a street light at night when lighting is needed, automatically switches the street light to grid power when the amount of electricity charged in the battery is insufficient due to the insufficient electricity caused by the continuance of weather with difficulty in solar power generation, to draw the electricity from the grid power, automatically switches the street light to be disconnected from the grid power when the battery is charged with sunlight and a battery voltage rises so that connection to the grid power is not required, has a GPS receiver installed to identify an exact location of the street light to accurately turn on and off the light, and checks the voltage of the battery, solar power generation, grid power connection, streetlight operation, and streetlight status through an application or a web using a wireless communication network in real time such that a management status of the street light is checked in real time, thereby making management very convenient.

Description

Solar street light controller equipped with grid power connection and wireless management function

The present invention relates to a solar street light controller equipped with a grid power connection and wireless management function, and more specifically, the electricity generated by the solar cell module is usually charged to the battery to operate the street lamp at night when lighting is required. When the solar power generation is difficult and the battery is insufficient in charge, it automatically switches to the grid power and draws electricity from the grid power for use. When connection is not required, it is automatically switched to be disconnected from the grid power, and a GPS receiver is installed to know the exact location of the street lamp, and the turn-off time is turned on and off accurately. , It is possible to check in real time whether the streetlight is operating or not, through the app or the web through the wireless communication network, so that the management status of the streetlight can be checked in real time. It relates to the mounted solar street light controller.

In general, electricity consumption in Korea has been steadily increasing since the 1970s due to the improvement of living standards and the pursuit of convenience.

While the price of oil, which is the primary energy, continues to rise, the cost of power generation increases, but the unit price of electricity, the secondary energy produced by processing it, has only recently increased, and is relatively cheap compared to gas or oil due to the continuous freeze by the government. this has been going on

On the other hand, the imbalance in the relative energy price caused by electricity rates that do not reflect the actual energy price gives a distorted signal to the consumption and investment of each economic agent, resulting in side effects.

For example, in the domestic manufacturing industry, excessive facility investment is occurring mainly in energy-consuming industries due to the relatively low electricity rates. In addition, the use of electric heating and cooling is rapidly increasing in general buildings. Recently, the demand for energy conversion in which gas or oil is used for heating in buildings is gradually replaced by electricity is also rapidly increasing.

Accordingly, electricity demand is renewed every year to the highest level, and a vicious cycle of continuously constructing power plants appears. However, it is very difficult to construct a large-capacity power plant due to domestic and international incidents such as domestic and international incidents such as the Korean people's anxiety about nuclear power plants after the recent nuclear accident in Japan.

In addition, a street lamp, which is a type of load that consumes electricity, uses electricity charged from grid power or solar cells or wind power as a power supply source, and power is supplied by operation by a timer, central control, and sensor, such that fluorescent lamps, sodium lamps and The lamp is lit using the same light source of several types.

However, since the solar cell cannot perform its role when the amount of insolation is insufficient due to the deterioration of weather conditions, a method for using it in connection with the grid power has been proposed.

Since the sun rotates and revolves, its position changes according to the season and time, whereas the solar panel mounted on a conventional street lamp using solar power is fixed and the power generation efficiency is not maximized. Also, the solar panel has a wide plate shape Therefore, there is a risk of damage in case of strong winds.

In recent years, wireless remote control technology has been used in order to overcome the limitation of controlling the collective lighting and turning off of street lamps or only turning on and off according to the operation of a timer or a sensor.

It is connected to the computer of the administrative agency that installs, maintains, manages, and repairs streetlights. The information on the operation status of each streetlight, breakdown history, and maintenance is accumulated and stored in the database and computerized according to the operation of the manager. The technology of outputting the information and notifying the person in charge of repair, or the remote control of this technology, has limitations in that it merely controls the power supply or detects a failure.

In addition, street lamps are installed between buildings and in alleyways of residential areas for the purpose of lighting and crime prevention.

Currently, there are two main methods for controlling the blinking of street lamps, the photoelectric type and the electronic type, and the photoelectric type uses a photodiode (photoelectric conversion device). was used to increase due to the photovoltaic effect of light irradiation, but it caused a waste of power and many complaints due to abnormal operation when dark current was generated, cloudy and cloudy days, and a lot of dust was collected on the photodiode. The electronic type, which is another method, is designed to memorize a year's worth of day and time of occurrence in the memory of the one-chip controller and read the month, day and time from the clock chip to turn on/off at the corresponding month, day and time. The X-TAL vibrator used in the company was not precise and was sensitive to the surrounding environment and temperature change, so there was a problem that the on/off time was late or early because the time was fast or delayed.

Registered Patent Publication No. 10-0666671 Registered Patent Publication No. 10-0679689

An object of the present invention is to solve this problem, usually by charging the electricity generated by the solar cell module in the battery to operate the street lamp at night when lighting is required, and the weather in which solar power generation is difficult continues and the electricity generated by the battery When there is insufficient charge in the system, it is automatically switched to the grid power, and electricity is drawn from the grid power for use. Switched, a GPS receiver is installed to know the exact location of the street light, the turn-off time is turned on and off accurately, and the voltage of the battery, whether solar power is generated, whether the grid power is connected, whether the street light is in operation, and whether the street light is in the status The goal is to provide a solar street light controller equipped with grid power connection and wireless management functions, which can be checked through the app or the web through the app or the web, enabling real-time confirmation of the management status of street lights, making management very convenient.

The object of the present invention is to provide a street lamp body with a lamp positioned at a certain height above the ground to illuminate the road, a solar cell module disposed on the street lamp body and irradiated with sunlight to generate power, and the solar cell In the street light controller that receives electricity from the module to control the lighting of the lamp and is installed in the middle of the street light body, the street light controller is configured to receive electricity generated from the solar cell module to be charged and supplied to the lamp of the street light body A receiving unit and a receiving unit voltage measuring unit for constantly measuring the state of the voltage of the receiving unit unit, and a switching unit for connecting the receiving unit voltage to the system power supply by switching it when the voltage of the receiving unit unit falls below a reference voltage; When connected in the switching unit, the system power supply unit that applies power to the lamp of the main body of the street lamp, controls the switching of the system power unit and the receiving unit, and grasps and controls the voltage or solar power generation of the receiving unit in real time and whether the system is connected. The system power connection and wireless management function according to the present invention including a control unit, a communication unit for communicating the state of the street light controlled by the control unit to the outside, and a GPS receiver for knowing the exact location of the street light and accurately setting the turn-off time This is achieved by a solar street light controller.

A solar street light controller equipped with a grid power connection and wireless management function according to the present invention is a street light main body with a lamp positioned at a certain height from the ground to illuminate the road, and is disposed on the upper part of the street light main body and irradiates sunlight A solar cell module that receives electricity to produce power, and a street light controller that receives electricity from the solar cell module to control lighting of a lamp and is installed in the middle of a street light body, wherein the street light controller includes electricity generated from the solar cell module is charged and supplied to the lamp of the main body of the street lamp; A switching unit that switches it and connects it to the grid power, a system power unit that applies power to the lamp of the street lamp body when connected from the switching unit, and controls the switching of the system power unit and the receiving unit, and the voltage or sunlight of the receiving unit A control unit that detects and controls power generation or grid connection in real time, a communication unit that communicates the state of the street light controlled by the control unit to the outside, and a GPS receiver that knows the exact location of the street light and accurately determines the turn-off time Normally, the electricity generated by the solar cell module is charged to the battery to operate the street lamp at night when lighting is required. When electricity is drawn from the grid power and the battery is charged with sunlight, and the voltage of the battery rises and there is no need to connect to the grid power, it is automatically switched to be separated from the grid power and a GPS receiver is installed to determine the exact location of the street light. Know that the turn-off time is correctly turned on and off, and the battery voltage, solar power generation, grid power connection, street lamp operation, and street lamp status can be checked in real time through the app or the web through the wireless communication network. Management status can be checked in real time, so management is very convenient. There is an excellent effect of squeezing.

1 is a street light in which a solar street light controller equipped with a grid power connection and wireless management function according to a first embodiment of the present invention is installed;
2 is a block diagram of a solar street light controller equipped with a system power connection and wireless management function according to the first embodiment of the present invention;
Figure 3 is a schematic configuration diagram of the receiving portion and the receiving portion voltage measuring unit of the solar street light controller equipped with a grid power connection and wireless management function according to the first embodiment of the present invention;

A solar street light controller (A) equipped with a grid power connection and wireless management function according to the first embodiment of the present invention, as shown in Figs. Module (2) is disposed on the upper part of the street lamp body (1) and is located at a certain height from the ground and is installed in the middle of the street lamp body (1) to which a lamp (11) to illuminate the road is attached, the solar cell module (2) It has a function of controlling so that electricity generated from the is charged and supplied to the lamp 11 of the street lamp body 1 when in use.

The solar street light controller (A) equipped with the system power connection and wireless management function constantly checks the voltage of the battery part installed inside, and when the voltage of the battery part is insufficient to reach a certain level or less, the system power supply part When the power supply is connected and the charging voltage of the battery part rises to a certain range, the system power is automatically switched to be disconnected from the switching part, so that there is no shortage of power supplied to the street lamp.

In addition, the solar street light controller (A) equipped with a grid power connection and wireless management function, the voltage of the battery unit, whether the solar cell module is operating, whether the grid power is connected, etc. in real time through the communication unit to the administrator through the app or web Since it is connected in real time through the

The solar street light controller (A) equipped with grid power connection and wireless management functions is operated so that the GPS receiver is installed to know the exact location of the street light and to turn on and off the turn-off time accurately.

When the solar street light controller (A) equipped with the grid power connection and wireless management function is described in detail, as shown in FIG. 2 , the electricity generated by the solar cell module 2 is charged at a constant voltage, A receiving unit 3 for storing electric charges to be supplied to the lamp 11 of the street lamp body 1 when in use, and a receiving unit voltage measuring unit for constantly measuring the state of the voltage of the receiving unit 3 ( 4) and when the voltage of the receiving unit (3) falls below the reference voltage, it is switched and connected to the system power unit. A switching unit 5 that switches to the unit 3, a system power supply unit 6 that supplies power to the lamp 11 of the street lamp body 1 when connected in the switching unit 5, and the system power supply unit ( 6) and a control unit 7 for controlling the switching between the receiving unit 3 and identifying and controlling the voltage of the receiving unit 3, whether the solar cell module is generated or whether the system is connected in real time, and the control unit 7 ) includes a communication unit 8 that communicates the state of the street light to the outside, and a GPS receiver 9 that knows the exact location of the street light and accurately sets the turn-off time.

The lamp 11 of the street lamp body 1 means the same as an LED lamp operating with a direct current (DC) voltage.

In the solar cell module 2, a plurality of solar cells having a PN junction structure are connected, and when light is irradiated to the solar cell and photons from the outside are absorbed into the inside of the solar cell, photons A pair of electrons and holes is created inside the solar cell by the energy of , holes move to the P-type semiconductor, and are collected at the electrodes on each surface, and the charge collected at each electrode is the current flowing through the lamp when the lamp is connected to an external circuit. become the source

The solar cell module 2 is configured in the form of an array of a plurality of solar cell modules including a plurality of solar cells in series or in parallel, and in this embodiment, the capacity of the solar cell module 2 is 550 when used as a street light. It is preferably formed of to 620 Watt.

The receiving unit 3 includes a charging unit 31 that converts electric energy generated by the solar cell module 2 into electric power having a constant voltage characteristic, and the charge converted to a constant constant voltage in the charging unit 31. It consists of a storage battery unit 32 for storing, and a current conversion unit 33 .

The charging unit 31 of the receiving unit 3 converts electric energy supplied through the solar cell module 2 into electric power having a constant voltage characteristic. The charging unit 31 of the receiving unit 3 may have a known configuration including a constant current circuit and a DC/DC converter.

The charging unit 31 of the receiving unit 3 rectifies the electricity generated by the solar cell module 2 to a constant voltage and current and supplies it to the storage battery unit 32 . The storage battery unit 32 stores the power supplied from the charging unit 31 of the receiving unit 3 while there is no power consumption, and when the lamp 11 is on, the storage battery 32 stores the stored power. supply

When the electric energy produced by the solar cell module 2 remains, the current conversion unit 33 supplies it to the grid power or converts the AC power supplied from the grid power into DC power and supplies it to the lamp 11 . has the function to

The current conversion unit 33 is provided with a SMPS (Switching Mode Power Supply) 33a and an inverter 33b, and the SMPS 33a is connected to a grid power supply unit 6 of a power company supplying AC power, AC power is converted into DC power applicable to the lamp 11 and supplied, and the inverter 33b consumes power from the lamp 11 and is surplus power remaining after charging is completed in the receiving unit 3 . When power is generated, the surplus power is transferred to the utility's AC power grid.

The voltage of the receiving unit 3 is measured and managed by the receiving unit voltage measuring unit 4 .

The support unit 3 stores power produced by the solar cell module 2 and transmits power to the lamp 11 of the street light body 1 so that the power stored in the lamp 11 of the street light body 1 can be used. The power produced by the solar cell module (2) is stored as DC power in the receiving unit (3), power is consumed by the lamp (11), and the power remaining after charging is completed in the receiving unit (3). When surplus power is generated, it is supplied to the system power through the system power supply unit 6 . A battery that is free to charge and discharge is used as the receiving unit 3, and the battery used in the present invention has a capacity for storing power that the lamp 11 of the street lamp body 1 can operate for about one day. In this embodiment, the capacity of the battery of the support unit 3 is a gel-type, preferably 24 Vdc, 200 to 250 Ah when used as a street lamp.

The receiving portion voltage measuring unit 4 includes a charging indicator light 41 indicating a state in which electricity produced by the solar cell module 2 is charged in the storage battery unit 32 of the receiving unit 3, and A charging indicator 42 for displaying the state of charge of the pick-up unit 3 with a plurality of series of bars, and a supply indicator light for displaying a state in which electricity is supplied from the receiving unit 3 to the lamp 11 ( 43) is provided.

The receiving unit voltage measuring unit 4 is provided with a measurement comparing unit 44, and the measuring and comparing unit 44 measures the charging and discharging states of the receiving unit 3 to obtain a predetermined optimal voltage state. When it falls below the reference voltage, it notifies the control unit 7 to switch, and when it is charged and falls short of the buffer voltage, it notifies the control unit 7 to switch again.

The receiver voltage measuring unit 4 is configured separately from the control unit 7 and supplies the output to the control unit 7, thereby enabling monitoring of the charging over/under voltage for the storage battery unit 32 as well. will be.

The receiving unit voltage measuring unit 4 monitors the state information such as voltage, current and temperature of the receiving unit 3 and notifies it by wire or wireless from the manager through the communication unit 8. It makes it possible to manage street lights even from a remote location.

The switching unit 5 receives the control signal of the control unit 7, and when the voltage of the receiving unit 3 falls below the reference voltage, it switches it and connects it to the system power unit 6, and the buffer voltage In the case where the charge is insufficient, for example, about 20-30% in full-build business, but the lamp 11 can be turned on, disconnect the system power unit 6 and turn it into the support unit 3 It performs the switching function.

The switching unit 5 serves to switch the SMPS 33a to be connected or the inverter 33b to be connected.

It is preferable that the switching unit 5 is made of a contact relay or a non-contact logic element method.

The system power unit 6 performs a function of supplying power to the lamp 11 of the street lamp body 1 when it is switched and connected in the switching unit 5, and charging is completed in the receiving unit 3 When surplus power, which is the remaining power, is generated, a function of supplying the surplus power to the system power through the system power supply unit 6 is performed. The grid power unit 6 receives grid power from the outside, and normally used AC power of 220V is input.

The control unit 7, the receiving unit voltage measuring unit 4, when the charging voltage for the storage battery 32 is determined as an over-undervoltage by the signal of the measurement and comparison unit 44, the system power supply unit supplied from the outside ( 6) is switched to output a control signal to be supplied to the lamp 11 .

The control unit 7, the receiving unit voltage measuring unit 4 continuously senses the amount of power stored in the receiving unit 3 by the measurement and comparison unit 44 .

The control unit 7 detects the amount of power of the receiving unit 3 and prevents the power produced by the solar cell module 2 from being stored in the receiving unit 3 over a certain value, thereby preventing the receiving unit 3 ) to prolong the lifespan of

The communication unit 8 may transmit state data such as voltage, current and temperature of the receiving unit 3 to an external remote terminal through a network communication network, and may also receive a remote control signal from the remote terminal . For example, the network communication network may be a communication network such as the Internet, a wireless communication network, or RF wireless communication operated by a communication network operator. In this embodiment, the communication unit 900 is wireless communication.

The GPS receiver 9 receives information about the location information of the street lamp from the satellite to know the exact location of the street light and the turn-off time is accurate, and can know the sunrise and sunset information for each day, week, month, and season. A storage unit is provided so as to provide an accurate sunrise and sunset time so that the lamp 11 of the street lamp body 1 is turned on and off accurately.

The operation of the solar street light controller (A) equipped with a grid power connection and wireless management function according to the present invention having such a configuration will be described in detail.

First, when the sunset time arrives in the GPS receiver 9 that receives the satellite signal, a signal is sent to the control unit 7, and the control unit 7 controls the lamp 11 of the street lamp body 1 to be turned on. .

When the lamp 11 is turned on, when it is charged to have a sufficient charge in the receiving unit 3, a switching operation is performed in the receiving unit 3 to supply electricity from the receiving unit 3, and the When the voltage of the receiving unit 3 is less than the reference voltage, the lamp 11 is turned on by switching in the switching unit 5 and connecting to the system power unit 6 .

All information such as voltage and current of the receiving unit 3 is monitored by the receiving unit voltage measuring unit 4, and the monitored result is a communication unit when the administrator wants to recognize it from a remote location. Through (8), it is possible to recognize through the administrator's terminal (not shown), so that management can be easily performed even at a remote location.

When the voltage is discharged below the reference voltage during operation of the receiving unit 3, it is monitored by the receiving unit voltage measuring unit 4 and transmitted to the control unit 7, the control unit 7 The lamp 11 is continuously turned on by switching through the switching unit 5 and connecting to the system power unit 6 .

And, when the battery unit 32 of the receiving unit 3 is fully charged, it is monitored by the receiving unit voltage measuring unit 4 and transmitted to the control unit 7, the control unit 7 When the inverter 33b of the current conversion unit 33 is operated to generate surplus power, which is power remaining after charging is completed in the receiving unit 3, the surplus power is transmitted to the AC power system of the electric power company. The surplus power can be traded.

In addition, in the receiver voltage measuring unit 4, there is a charging indicator 41 indicating a state in which the electricity produced by the solar cell module 2 is charged in the storage battery unit 32 of the receiving unit 3 . The state of being installed and charged can be known, and the state of charge of the receiving portion 3 can be easily known by the charging indicator 42 displayed by a plurality of series of bars, and the receiving portion (3) A supply indicator light 43 indicating a state in which electricity is supplied to the lamp 11 is provided, so that the state in which electricity is supplied from the receiving portion 3 to the lamp 11 can be easily grasped.

And, the receiver voltage measurement unit 4 is provided with a measurement comparison unit 44, the measurement and comparison unit 44 measures the charging and discharging states of the receiving unit 3 to obtain a predetermined optimal voltage When it falls below the reference voltage, it is notified to the control unit 7 to switch, and when it is charged and falls short of the buffer voltage, it can be switched immediately by notifying the control unit 7 to switch again. there has been

In addition, the receiving unit voltage measuring unit 4 monitors (Monitoring) state information such as voltage, current and temperature of the receiving unit 3, and it is wired or wireless from the manager through the communication unit 8. By performing a notification, it becomes possible to manage the streetlight even from a remote location.

As described above, the solar street light controller equipped with a system power connection and wireless management function according to the present invention is usually charged with electricity generated by a solar cell module in a battery to operate the street lamp at night when lighting is required, and solar power generation When this difficult weather continues and the battery of the generated electricity lacks the charge, it automatically switches to the grid power and draws electricity from the grid power for use. If there is no, it is automatically switched to be separated from the grid power, and a GPS receiver is installed to know the exact location of the street light, and the turn-off time is turned on and off accurately. It is possible to check the status of the streetlight in real time through the app or the web through the wireless communication network.

The solar street light controller equipped with the system power connection and wireless management function according to the present invention is said to be possible to repeatedly manufacture the same product in the manufacturing industry of the solar street light controller, so it is an invention with industrial applicability. will be.

A : Solar street light controller (A) 1 : Street light main body
2: solar cell module 3: support part
4: Receiver voltage measuring unit 5: Switching unit
6: power supply unit (6) 7: control unit
8: communication unit 9: GPS receiver
11: lamp 31: charging part
32: storage battery unit 33: current conversion unit
33a: SMPS 33b: inverter

Claims (4)

In the solar street light controller (A) equipped with grid power connection and wireless management function,
The solar street light controller (A) equipped with the grid power connection and wireless management function is charged with electricity generated from the solar cell module (2) at a constant voltage and is used as the lamp (11) of the street light body (1). A receiving portion (3) for storing electric charges to be supplied, and
And the receiving portion voltage measuring unit (4) for constantly measuring the state of the voltage of the receiving portion (3);
When the voltage of the receiving unit (3) falls below the reference voltage, it is switched and connected to the system power unit. A switching unit 5 for switching to and
a system power supply unit 6 for supplying power to the lamp 11 of the street lamp body 1 when connected in the switching unit 5;
A control unit 7 for controlling the switching between the system power unit 6 and the receiving unit 3 and identifying and controlling the voltage of the receiving unit 3, whether the solar cell module is generated or whether the system is connected in real time, and;
A communication unit 8 for communicating the state of the street light controlled by the control unit 7 to the outside;
Solar street light controller equipped with grid power connection and wireless management function, characterized in that it includes a GPS receiver (9) that knows the exact location of the street light and accurately turns on/off time
According to claim 1,
The receiving unit 3 includes a charging unit 31 that converts electric energy generated by the solar cell module 2 into electric power having a constant voltage characteristic, and the charge converted to a constant constant voltage in the charging unit 31. Consists of a storage battery unit 32 to store, and a current conversion unit 33,
The current conversion unit 33 is a solar street light controller equipped with a grid power connection and wireless management function, characterized in that the SMPS (Switching Mode Power Supply) (33a) and the inverter (33b) are provided.
According to claim 1,
The receiving portion voltage measuring unit 4 includes a charging indicator light 41 indicating a state in which electricity produced by the solar cell module 2 is charged in the storage battery unit 32 of the receiving unit 3, and A charging indicator 42 for displaying the state of charge of the pick-up unit 3 with a plurality of series of bars, and a supply indicator light for displaying a state in which electricity is supplied from the receiving unit 3 to the lamp 11 ( 43) is provided,
The receiving unit voltage measuring unit 4 is provided with a measurement comparing unit 44, and the measuring and comparing unit 44 measures the charging and discharging states of the receiving unit 3 to obtain a predetermined optimal voltage state. Solar street light controller equipped with grid power connection and wireless management function, characterized in that when it falls below the reference voltage and notifies to the control unit (7)
According to claim 1,
The receiving unit voltage measuring unit 4 monitors the state information such as voltage, current and temperature of the receiving unit 3 and notifies it by wire or wireless from the manager through the communication unit 8. Solar street light controller equipped with grid power connection and wireless management function, characterized in that it can manage street lights even from a remote location

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