KR102105324B1 - Control system dimming of street light using power line phase control - Google Patents

Abstract

The present invention relates to a street light dimming control system using a power line communication. The street light dimming control system comprises: a street light control device outputting a street light driving signal based on PWM power in a power line communication method to control the on/off and dimming of a plurality of street lights; an LED power supply device controlling the on/off and dimming of the plurality of street lights according to the street light driving signal received through the power line communication method; and a control server transmitting a control signal for time and power information data to perform dimming or power saving of the plurality of street lights to the street light control device, wherein the street light control device outputs a street light driving signal based on PWM power based on time and power information data for dimming or power saving of the plurality of street lights, thereby reducing the possibility of data loss while reducing the cost of installing a communication device.

Description

CONTROL SYSTEM DIMMING OF STREET LIGHT USING POWER LINE PHASE CONTROL using power line communication

The present invention relates to a street light dimming control system using power line communication.

Generally, street lights, park lights, and port lights are installed at roads, parks, ports, etc. at night to promote safety for vehicles, ships or pedestrians, and security lights and guard lights are used for security of buildings or facilities. It is mainly installed around buildings or in major facilities. They are installed on props, power poles, fences, walls of buildings, etc. to turn on and off several lights by operating the main switch at a fixed time.

In addition, the lighting lamp installed in the office of the building turns on and off several lighting lamps by the worker operating the main switch.

Such a conventional collective lighting lamp is installed to enable a person to turn on / off (ON / OFF) a power switch installed in a distribution panel or a control panel according to a time when lighting is required. In addition, the conventional collective lighting lamp is remotely controlled wirelessly, or an on / off control device is installed to simply turn on at night and turn off during the day by attaching a light flashing controller using an illuminance sensor that determines day and night. Technology for applying dimming and power saving devices to control the brightness of lighting has been introduced.

However, the conventional street light distribution system, for example, the technology disclosed in Korean Patent Registration No. 10-1303466 (Registration Date August 28, 2013) simply performed a dimming control depending on a timer, and thus controls dimming by time zone. It was all. Therefore, the prior art needs to further reduce power consumption.

In addition, the conventional street light distribution system has a problem in that a wire / wireless communication means for transmitting and receiving a dimming control signal for dimming control must be provided. Particularly, when wired communication is used, the cost for constructing a separate communication line increases, and when using wireless, installation is easy, but a relatively expensive communication device must be used compared to wired communication, and there is a possibility of data loss due to crosstalk. There was.

Various embodiments of the present invention are to solve the above problems, by controlling the dimming and distribution of the street light by using a power line communication method that can communicate using a power supply line without a separate communication network can reduce the installation cost of the communication device The purpose is to provide a street light dimming control system using power line communication.

In addition, various embodiments of the present invention are calculated by calculating vehicle information moving around a street light as a statistical value, or by controlling dimming of a street light based on environmental information regarding fog or fine dust as weather information, power consumption An object of the present invention is to provide a street light dimming control system using power line communication, which can greatly reduce power consumption.

A street light dimming control system using power line communication according to various embodiments of the present invention is a street light control device that outputs PWM power based street light driving signals for controlling on / off and dimming of a plurality of street lights by a power line communication method, power line communication LED power supply for controlling on / off and dimming of a plurality of street lights according to the received street light driving signal, and a control signal for time and power information data for dimming or power saving of the plurality of street lights to the street light control device It includes a transmission control server, and the street light control device has a main technical feature of outputting a PWM power based street light driving signal based on time and power information data for dimming or power saving of a plurality of street lights.

As a street light dimming control system using power line communication according to various embodiments of the present disclosure, communication is possible while reducing the possibility of data loss by controlling dimming of a street light using a power line communication method capable of communication using a power supply line without a separate communication network. It is possible to provide an effect that can reduce the installation cost of the device.

In addition, as a street light dimming control system using power line communication according to various embodiments of the present disclosure, vehicle information moving around a street light is calculated as a statistical value, or environmental information regarding fog or fine dust as weather information. It is possible to provide an effect of reducing power consumption by controlling the dimming of the street light based on.

 In addition, it is possible to provide a crime prevention effect by adjusting the dimming of at least one street light disposed in a place corresponding to the current location information of the mobile terminal to the maximum brightness based on the route path information provided from the mobile terminal and the current location information of the mobile terminal. You can.

1 is a configuration diagram showing a street light dimming control system using power line communication according to an embodiment of the present invention.
2 is an exemplary view of a street light according to an embodiment of the present invention.
3 is a configuration diagram of a street light control device according to an embodiment of the present invention.
4 is a block diagram of a PWM control unit according to an embodiment of the present invention.
5 is a block diagram of a data transmission unit and a data reception unit according to an embodiment of the present invention.
6 is a configuration diagram of a sensor unit according to an embodiment of the present invention.
7 is an exemplary diagram of a user interface of a safe home lamp control service provided by a portable terminal according to an embodiment of the present invention.

The above-described objects, features, and advantages will be described in detail below with reference to the accompanying drawings, and accordingly, a person skilled in the art to which the present invention pertains can easily implement the technical spirit of the present invention. In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram showing a street light dimming control system using power line communication according to an embodiment of the present invention. 2 is an exemplary view of a street light according to an embodiment of the present invention.

1 and 2, the street light dimming control system according to an embodiment of the present invention is a control device 210 that outputs street light driving signals for controlling on / off and dimming of a plurality of street lights 200 by a power line communication method. ), LED power supply for controlling on / off and dimming of a plurality of street lights 200 according to a street light driving signal received by a power line phase control method, and a plurality of street lights 200 in the control device 210 It includes a control server 220 for transmitting a control signal for the time and power information data for dimming or power saving.

In addition, the street light dimming control system according to an embodiment of the present invention further includes a portable terminal 230 connected to the control server 220 and / or the control device 210 by wireless communication. Here, the mobile terminal 230 provides a user interface for a safe return home streetlight control service, calculates the route path information based on a user input through the user interface, the route path information and the current location of the portable terminal 230 It is configured to transmit information to the control server 220 and / or control device 210.

The control device 210 may be provided in a group lighting distribution panel or a distribution panel, and may be a distribution box or control panel of a distribution panel that controls on / off and / or dimming of a street light 200 (eg, LED group lighting) using power line communication. At least a part of the control device 210 described in this document may be provided on the pillar of the street light 200.

The control device 210 controls on / off and / or dimming of the street light in response to the ambient brightness of the plurality of street lights 200 or the presence or absence of a passerby or a traffic vehicle. The control device 210 performs power line communication, and for example, may be installed on an LED group lighting power line (eg, 100 in FIG. 3) including the AC 220V power source 101. The control device 210 includes a memory, a sensor unit 212, a control unit 212, a communication unit 213, and a PWM control unit 214 for outputting a street light driving signal in a power line communication method.

The communication unit 213 (for example, the control signal transmitting and receiving unit 213 of FIG. 3) receives environmental information around the street light 200 from the control server 220 at predetermined intervals or in real time. Here, the environmental information may be information such as earthquake, volcanic eruption, as well as temperature, precipitation, wind, humidity, earthquake, fine dust, vibration, and yellow dust in the area where the street light 200 is located. According to an embodiment, the environmental information may mean information about temperature, precipitation, wind, humidity, earthquake, fine dust, vibration, and yellow dust in the area where the street light 200 is located at the present time.

The sensor unit 212 is for the control device 210 to directly acquire the information around the street light 200, and may be provided on the circumference of the street light 200, the temperature, humidity, and fine surrounding the street light 200 Detect dust and / or traffic.

The memory stores set values and reference values for adjusting the dimming of the street light 200 based on information around the street light 200 obtained through the sensor unit 212 or the communication unit 213.

The control unit 212 controls the overall operation of the control device 210. For example, the control unit 212 acquires information around the street light 200 through the sensor unit 212 or the communication unit 213, and adjusts the dimming of the street light 200 based on the acquired information. 214).

The PWM control unit 214 generates a dimming signal with a specified dimming value based on the control signal of the control unit 212 and PWMs the DC power generated from the LED power supply 215 based on the street light driving signal including the dimming signal. Dimming and power saving of the street light 200 is performed by changing to form power. Power line communication is performed between the PWM control unit 214 and the LED power supply 215. That is, the PWM control unit 214 transmits a street light driving signal including a dimming value or a dimming signal to the LED power supply 215 in a power line communication method. Accordingly, the LED power supply unit 215 performs a switching operation according to the dimming value or the dimming signal, thereby converting the LED power 320 received as DC power into the PWM power LED 321 and outputting it.

Meanwhile, the control server 220 transmits control signals for time and power information data for dimming or power saving of the plurality of street lights 200 through wired communication or wireless communication. For example, the control server 220 may transmit a control signal through 3G communication, LTE communication, 5G communication, or the like. The control device 210 may entirely control the plurality of street lights 200 or partially control the plurality of street lights 200 based on a control signal provided from the control server 220. The control signal may include, for example, dimming values of the plurality of street lights 200, time for power saving, and power information data.

3 is a block diagram of a control device 210 according to an embodiment of the present invention.

Referring to FIG. 3, the control unit 212 determines a dimming value of the street light 200 based on a control signal provided from the control server 220 or some information obtained through the sensor unit 212, and determines the dimming value of the street light 200. The corresponding dimming signal 216 is generated. The control unit 212 transmits the generated dimming signal 216 to the PWM control unit 214, and the PWM control unit 214 transmits a street light driving signal based on the dimming signal 216 to the LED power supply unit 215 through a power line communication method. By transmitting, the DC power generated from the LED power supply 215 is converted into PWM-type power to perform dimming and power saving of the street light 200.

For example, the control unit 212 analyzes a control signal received from the control server 220 to determine a suitable dimming value for each of the plurality of street lights 200, and a PWM control unit for the dimming signal 216 corresponding to the determined dimming value 214. Alternatively, the control unit 212 determines a suitable dimming value for each of the plurality of street lights 200 based on environmental information on the main surface of the street light 200 obtained from the sensor unit 212, and the dimming signal 216 corresponding to the determined dimming value ) To the PWM control unit 214.

4 is a block diagram of a PWM control unit 214 according to an embodiment of the present invention.

Referring to FIG. 4 together with FIG. 1, the PWM control unit 214 is a gate turn that is a kind of an insulated gate bipolar transistor (IGBT) or a silicon controlled rectifier (SCR) to convert DC power into a street light driving signal of PWM power. off thyristor), a power element 310 capable of performing a PWM function such as a solid state relay (SSR), and a data transmission unit supplying a street light driving signal of PWM power to the LED power supply 215 by a power line communication method ( 240), a PWM signal generator 311 that generates a PWM signal according to the dimming signal 216, a controller for controlling PWM (MCU) 312, an optical sensor 211, or an analog from a motion sensor (not shown) It consists of an ADC (313) that converts the signal to a digital signal. Here, the controller (MCU) 312 and the ADC 313 may use the MCU and ADC included in the control unit 212.

The ADC 313 of FIG. 4 receives the analog signal output from the optical sensor or motion sensor of the sensor unit 212 and converts it into a digital signal, and is included in an MCU (eg, 312). The controller 312 is composed of an MCU, and receives a dimming signal 216 to generate a PWM control signal. The motion sensor detects the approach of a moving body such as a passerby or a traffic vehicle within a certain range around each light, and generates a motion detection signal accordingly, which is a sensor that detects low-frequency wavelengths, an electric field sensing type sensor, or a reflective type Various sensing type sensors, such as an infrared detection sensor, a thermal infrared wavelength detection type sensor, and an ultrasonic detection sensor, can be applied.

The PWM signal generator 311 adjusts the dimming of the street light 200 by outputting a gate driving signal capable of driving the gate 316 of the power element 310 such as IGBT, GTO, SSR based on the PWM control signal. . The power element 310 converts and outputs the LED power source 320 received as DC power to the LED power source 321 in the PWM form in response to the gate driving signal of the PWM signal generation unit 311. The data transmission unit 240 supplies the street light driving signal of the PWM power output through the power element 310 to the LED power supply unit 215 in a power line communication method.

5 is a block diagram of a data transmission unit and a data reception unit according to an embodiment of the present invention.

Referring to FIG. 5, the data transmission unit 240 combines a waveform with an adjusting leading edge, a waveform with a trailing edge adjusted, and a waveform without adjusting a phase angle with a street light driving signal of AC power (AC) and PWM power. By sequentially supplying to the data receiving unit 350, a street light driving signal of PWM power is transmitted.

In the power line communication method, the starting point of the power line communication corresponds to a leading edge control waveform or a trailing edge control waveform, and data to be transmitted is converted into binary so that the remaining phase angle control waveforms correspond to binary 1 or binary 0. Accordingly, the waveform without adjusting the phase angle is supplied in sequence so as to correspond to the complement of the binary value of the waveform with the adjusted phase angle, thereby transmitting a street light driving signal of PWM power.

The data transmission unit 240 includes a first zero voltage detection unit 241, a switching unit 242, a first control unit 243, and a packet communication unit 244.

The packet communication unit 244 receives the PWM power street light driving signal 245 and outputs it to the first control unit 250.

The first zero voltage detection unit 241 detects a first zero voltage point, which is a time when the voltage of the AC power AC becomes a zero voltage, and outputs a first zero voltage point signal to the first control unit 243.

The first control unit 243 receives the first zero voltage point signal from the first zero voltage detection unit 241 and receives the PWM power street light driving signal through the packet communication unit 244 to drive the street light of PWM power at the first zero voltage point. Signal each.

In this case, the first control unit 243 stores in advance the first switching signal that is converted from the off state to the on state, the second switching signal that is in the on state, and the third switching signal that is converted from the on state to the off state. The first zero voltage point is identified from the first zero voltage detection unit 241, and when the first zero voltage point is detected at the start of communication, a switching signal matching the start bit is applied to the switching unit 242, and then the first zero voltage point Each time a point is detected, the corresponding switching signal matched to the street light driving signal (high and low bit) value of the PWM power is sequentially applied to the switching unit 242. At this time, the first switching signal or the third switching signal is matched to the start bit, and the remaining two switching signals except the switching signal matched to the start bit are randomly matched to the binary 1 bit and the binary 0 bit.

The first controller 243 switches the corresponding switching signal to the corresponding first switching signal, second switching signal or third switching signal according to the street light driving signal of the PWM power whenever the first zero voltage signal is input. ).

The switching unit 242 receives the AC power AC and receives the first switching signal or the third switching signal from the first control unit 243, and when the first switching signal to the third switching signal are in an on-state The power AC is passed through, and in the off state, the AC power AC is cut to output the generated AC power.

The data receiving unit 250 includes a second zero voltage detection unit 251 and a second control unit 252. And a storage unit 253.

The second zero voltage detecting unit 251 receives the modified AC power output from the switching unit 242 to detect the second zero voltage point, which is the time when the voltage of the modified AC power becomes the zero voltage, and receives the second zero voltage point signal. Output to the control unit 252.

The second control unit 252 sequentially receives the second zero voltage point signal, and whenever the second zero voltage point of the modified AC power source is detected, the second zero voltage point signal for a half cycle based on the time point is turned on and off. If it is maintained, it is determined whether the case where the off state is continuously maintained or the off state is maintained from the off state. Accordingly, when the second zero voltage point signal is maintained in an off-state, a bit value pre-matched to the third switching signal is read, and when the off-state is continuously maintained, the second switching signal is pre-matched in the second switching signal. When reading from a bit value and maintaining an off state from an on state, a bit value pre-matched to the first switching signal is read, and a street light driving signal of PWM power is obtained by sequentially collecting each read bit value. At this time, the second control unit 320 stores the generated street light driving signal of PWM power.

6 is a configuration diagram of a sensor unit 212 according to an embodiment of the present invention.

Referring to FIG. 6, the sensor unit 212 according to an embodiment of the present invention includes a temperature sensor 511, a humidity sensor 512, a fine dust sensor 513, and a traffic detection sensor 514.

The control unit 212 of the control device 210 calculates a value obtained by converting an average of traffic volumes of objects moving around the plurality of street lights 200 into unit hours, and generates a dimming signal based on the calculated value. For example, the control unit 212 calculates the traffic volume of the object moving the plurality of street lights 200 in the first time unit, and if the calculated traffic volume is greater than or equal to the first reference value, dimming the plurality of street lights 200 When the calculated amount of traffic is less than the first reference value, the dimming of the plurality of street lights 200 is adjusted to be greater than or equal to the first specified value.

If the traffic volume is greater than or equal to the first reference value, it means that the traffic volume of the vehicle is relatively large, and in this case, even if the street light 200 is dark, it is difficult to secure a visible distance necessary for driving the vehicle, considering that the number of vehicles moving the headlights is high. Since there will be no, it is possible to reduce power consumption by lowering the dimming of the street light 200.

If the traffic volume is greater than or equal to the first reference value, it means that the traffic volume of the vehicle is relatively small, and in this case, considering that a small number of vehicles are moving with the headlights on, in case the street light 200 is dark, it is difficult to secure a visible distance required for driving the vehicle. Since there may be, it is possible to secure the driver's safety by relatively increasing the dimming of the street light 200.

On the other hand, when the traffic volume is smaller than the second reference value lower than the first reference value, the controller 212 adjusts the dimming of the plurality of street lights 200 to a first specified value or more, based on the moving speed of the moving object. By setting the dimming of the plurality of street lights 200 sequentially. This is to take into account the situation where the traffic volume of the vehicle is extremely small, and adjusts the dimming of the street light 200 to a value higher than the first specified value, but dynamically lowers the dimming of the street light 200 again according to the moving speed of the moving object. . The present invention can reduce power consumption while ensuring safe driving for the driver.

According to an embodiment, the control unit 212 of the control device 210 is weather information according to information obtained from the sensor unit 212 and / or the control server 220, and visibility based on fog, fine dust, and rainfall values The distance value is determined, and a dimming signal is generated based on the visible distance value. For example, if the visible distance value is lower than a specified value, the controller 212 may adjust the maximum value regardless of the current time zone. To this end, the control unit 212 acquires information related to the temperature, humidity, fine dust, and traffic volume of the object around the street light 200 through the sensor unit 212 and generates a dimming signal based on the obtained information. You can. The control unit 212 obtains information from the sensor unit 212 and environmental information around the street light 200 from the control server 220 through the communication unit 213 (for example, the control signal transmitting and receiving unit 213 of FIG. 3). Combined to determine a set value for generating a dimming signal.

For example, the control unit 212 determines numerical information about fog, numerical information about fine dust, and numerical information about rainfall according to information obtained from the sensor unit 212 and / or the control server 220. . According to an embodiment, the control unit 212 converts numerical values with respect to the numerical information on the fog, the numerical information on the fine dust, and the numerical information on the rainfall, all of which are 100 points.

The control unit 212 obtains numerical information about the fog and then calculates first weather information by applying a first weight, obtains numerical information about the fine dust, and then applies second weight to obtain second weather information. Calculates, obtains numerical information about the rainfall amount, calculates third weather information by applying a third weight, and determines a score summing the first weather information to the third weather information as the visible distance value do. If the summed score is less than the third reference value, the controller 212 adjusts the dimming of the plurality of street lights 200 to a first specified value or more, regardless of the current time zone. This is because, in situations such as extreme fog, extreme fine dust, and extreme heavy rain, accident prevention through securing the driver's visible distance is the top priority rather than reducing power consumption. In order to adjust the dimming of the street light 200 to the maximum value regardless of the time zone.

Here, it is preferable that the third weight is greater than the first weight and the second weight, and the first weight and the second weight are the same. That is, in calculating the visible distance, as compared to fog or fine dust, the numerical value related to rainfall is the biggest factor that hinders the driver's visibility, so the present invention applies the largest weight to the numerical value related to rainfall to ensure driver safety. Is guaranteed.

7 is an exemplary diagram of a user interface of a safe home lamp control service provided by the portable terminal 230 according to an embodiment of the present invention.

Referring to FIG. 7, the portable terminal 230 according to an embodiment of the present invention provides a user interface for a safe home lighting control service.

The user performs the procedure of registering and registering the control server 220 through the mobile terminal 230, and in this process, the user registers the home address in the control server 220, and the control server 220 is registered by the user. Dimming control authority related to the street light 200 around the home address is selectively granted. For example, when the user completes the registration and registration procedure with the control server 220, the portable terminal 230, as shown in FIG. You can provide a querying user interface. Here, the mobile terminal 230, when the user selects the activation of the safe return home street light control service, the current location information of the mobile terminal 230 is sent to the control server 220 and / or the control device 210 located around the house. It can guide that it is transmitting.

If the user chooses to activate the safe return home streetlight control service, the mobile terminal 230 controls the current location information and the route information of the mobile terminal 230 as shown in FIG. 7 (b) to the control server 220 ) And / or transmits to the control device 210 located around the house, and outputs a guide phrase to adjust the brightness of the street light 200 disposed on the shoulder to the maximum through the display.

The control server 220 and / or the control device 210 located around the house, when the user selects the activation of the safe home lamp control service, the route information provided from the mobile terminal 230 and the current location of the mobile terminal 230 Based on the information, the dimming of at least one street light 200 disposed at a location corresponding to the current location information of the portable terminal 230 is adjusted to the maximum brightness. The present invention can prevent crime while reducing power consumption through dimming control.

As described above, as described above, in the streetlight dimming control system using power line communication according to an embodiment of the present invention, data is controlled by controlling the dimming of the streetlight using a power line communication method capable of communication using a power supply line without a separate communication network. It is possible to reduce the cost of installing a communication device while reducing the possibility of loss.

In addition, as a street light dimming control system using power line communication, vehicle information moving around the street light is calculated as a statistical value, or as weather information, dimming of a street light is controlled based on environmental information about fog or fine dust. This can further reduce power consumption.

 In addition, it is possible to provide a crime prevention effect by adjusting the dimming of at least one street light disposed in a place corresponding to the current location information of the mobile terminal to the maximum brightness based on the route path information provided from the mobile terminal and the current location information of the mobile terminal. You can.

In the above, the present invention has been illustrated and described in connection with one specific preferred embodiment, but the present invention is variously modified and changed within the limits that do not depart from the technical features or fields of the present invention provided by the following claims. Being able to be is obvious to those of ordinary skill in the art.

200: street light
210: control device
220: control server
230: mobile terminal
240: data transmission unit
250: data receiving unit

Claims (6)

A plurality of street lights;
A street light control device that outputs a PWM power-based street light driving signal for controlling on / off and dimming of the plurality of street lights by a power line communication method;
An LED power supply for controlling on / off and dimming of the plurality of street lights according to the street light driving signal received by the power line communication method; And
It includes a control server for transmitting a control signal for time and power information data for dimming or power saving of the plurality of street lights to the street light control device,
The street light control device,
The PWM power-based street light driving signal is output based on at least one of time, power information data, and surrounding environment information of the plurality of street lights for dimming or power saving of the plurality of street lights,
The street light control device,
Of the fog number information, fine dust value information, and rainfall value information included in the surrounding environment information of the plurality of street lights, the weight value is applied to the rainfall value most, and the fog value and the fog value applied to the weight are applied. Calculate the driver's visible distance value using the fine dust numerical information,
The PWM power-based street light driving signal is generated based on the calculated driver's visible distance value,
In order to transmit the PWM power-based street light driving signal by the power line communication method, a first zero voltage point at which an AC power voltage becomes a zero voltage is detected, but when the first zero voltage point is detected at the start of communication, the start bit is first The first switching signal, which is converted from the off state to the on state, is matched and transmitted, and whenever the next first zero voltage point is detected, the second switching signal in which the on state persists in the bit of a binary number or the state that is converted from the on state to the off state Match and transmit the third switching signal,
When the first to third switching signals are turned on, the AC power is passed through, and in the OFF state, the AC power is cut off to output the modified AC power to the LED power supply.
Street light dimming control system using power line communication. According to claim 1,
The street light control device,
Sensor unit for acquiring environmental information around the plurality of street lights,
PWM control unit for controlling the dimming of the plurality of street lights,
It includes a control unit for controlling the PWM control unit based on the environmental information around the plurality of street lights obtained through the control unit or the control signal obtained from the control server,
The PWM control unit further includes a data transmission unit outputting the PWM power-based street light driving signal through the power line communication method,
The environment information includes a value obtained by converting an average of the traffic volume of an object moving around the plurality of street lights into unit time.
Street light dimming control system using power line communication. According to claim 2,
The LED power supply
And a data receiving unit receiving the PWM power-based street light driving signal through the power line communication method, and controlling on / off and dimming of the plurality of street lights according to the street light driving signals received through the data receiving unit.
Street light dimming control system using power line communication. According to claim 1,
The street light control device,
Calculate the traffic volume of the object moving the plurality of street lights in a first time unit,
If the calculated traffic amount is greater than or equal to the first reference value, the dimming of the plurality of street lights is adjusted to less than a first specified value,
If the calculated traffic volume is less than a first reference value, the dimming of the plurality of street lights is adjusted to a value equal to or greater than a first specified value,
When the calculated traffic volume is smaller than a second reference value lower than the first reference value, the dimming of the plurality of street lights is adjusted to a value equal to or greater than a first specified value, and the dimming of the plurality of street lights is based on the moving speed of the moving object. Set to lower sequentially,
Street light dimming control system using power line communication. According to claim 1,
The street light control device,
After obtaining the fog numerical information, the first weather information is calculated by applying a first weight,
After obtaining the fine dust numerical information, the second weather information is calculated by applying a second weight,
After obtaining the rainfall number information, the third weather information is calculated by applying a third weight,
The score summing the first weather information to the third weather information is determined as the visible distance value,
If the score is less than a third reference value, regardless of the current time zone, the dimming of the plurality of street lights is set to be adjusted to a first specified value or more,
Street light dimming control system using power line communication. According to claim 1,
Further comprising a mobile terminal connected to at least one of the control server and the street light control device by wireless communication,
The portable terminal provides a user interface for a safe return home streetlight control service, calculates return route information based on user input through the user interface, and controls the return route information and the current location information of the portable terminal Configured to transmit to a server and / or the streetlight control device,
The control server and / or the street light control device may include at least one street light disposed at a location corresponding to the current location information of the mobile terminal based on the return route information provided from the mobile terminal and the current location information of the mobile terminal. Characterized by adjusting the dimming to the maximum brightness,
Street light dimming control system using power line communication.

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