KR102450754B1 - Streetlight control system capable of detecting traffic between lanes and method thereof - Google Patents

Abstract

The present invention relates to a street light control system capable of recognizing the presence or absence of a vehicle between the lanes of an uplink vehicle and a downlink vehicle, and a method therefor. The system of the present invention is a street light installed on either side of the uplink or downlink; and a control unit for outputting a control signal for controlling the blinking of the street light, wherein the street light includes: a radar unit for detecting a movement of a vehicle on a road using a sensor and outputting a detection signal; a light source unit receiving the control signal and emitting light on the road according to the control signal; and a communication unit that receives the detection signal from the radar unit and transmits it to the control unit, and receives the control signal from the control unit and transmits it to the light source unit, wherein the control unit receives and processes the detection signal to control the vehicle. It is possible to calculate the speed and the distance from the vehicle, and control the blinking of the light source unit accordingly.

Description

STREETLIGHT CONTROL SYSTEM CAPABLE OF DETECTING TRAFFIC BETWEEN LANES AND METHOD THEREOF

The present invention relates to a street light control system capable of recognizing the presence or absence of a vehicle between lanes, and a method therefor, capable of reducing power consumption of a road street light by controlling the flashing of the street light.

In general, the system related to the control of street lights illuminating the street initially used the method of manually turning on/off the circuit breaker locally by the local manager, and after that, it is turned on or off by sensing the illuminance of night and day, or , or using one-way wireless communication to enable remote control. In addition, a method in which street lights are automatically controlled by a seasonal time program in accordance with changes in sunrise and sunset times using GPS, and remote control and monitoring using wired/wireless communication means to control street lights in real time method is also being used.

However, despite the fact that there may be places where there is little movement of vehicles or pedestrians, the street lamp does not need to be continuously turned on, according to the prior art, there is a problem in that the street lamp is continuously turned on at night and power is wasted. A conventional method for controlling street lights in real time has also been developed, however, such a system is a simple two-way system in which a central control device for remote control and monitoring and each street light controller communicate one-to-one, which is uneconomical and has enormous operating costs. There is a problem that takes

Republic of Korea Patent Publication No. 10-0468912

An object of the present invention is to provide an active flashing street light control system capable of recognizing the presence or absence of an inter-lane vehicle and a method capable of reducing power consumption of the street light by actively detecting the presence of inter-lane vehicles and controlling the flashing of the street light accordingly will be.

One aspect of the present invention for solving the above problems is a street light control system capable of recognizing the presence or absence of a vehicle between the lanes of an uplink vehicle and a downlink vehicle, comprising: a streetlight installed on either side of an uplink line or a downlink line; and a control unit for outputting a control signal for controlling the blinking of the street light, wherein the street light includes: a radar unit for detecting a movement of a vehicle on a road using a sensor and outputting a detection signal; a light source unit receiving the control signal and emitting light on the road according to the control signal; and a communication unit that receives the detection signal from the radar unit and transmits it to the control unit, and receives the control signal from the control unit and transmits it to the light source unit, wherein the control unit receives and processes the detection signal to control the vehicle. It is possible to calculate the speed and the distance from the vehicle, and control the blinking of the light source unit accordingly.

According to an embodiment of the present invention, the control unit divides the detection signal into a detection signal of the uplink vehicle and a detection signal of the downlink vehicle, and detects it from a vehicle traveling in a lane on the side where the street lamp is installed among the uplink or downlink. When a signal is received, it is possible to control the light source to turn on.

According to an embodiment of the present invention, the control unit may control a detection signal from a vehicle traveling in a lane on a side where the street lamp is not installed among an uplink line or a downlink line so as not to affect whether the light source unit blinks.

According to an embodiment of the present invention, the control unit turns on faster as the speed at which the vehicle traveling in the lane on the side where the street light is installed approaches the radar unit increases, and the faster the speed at which the vehicle moves away from the radar unit increases, the faster it turns off. can be controlled to do so.

According to an embodiment of the present invention, the control unit additionally controls the illuminance of the light source unit, and increases the speed at which a vehicle traveling in a lane on the side where the street light is installed approaches and moves away from the radar unit is greater, the faster the illumination of the light source unit is. You can control it to change.

According to an embodiment of the present invention, the control unit may control so that a detection signal from a vehicle traveling in a lane on a side where the street lamp is not installed among an uplink line or a downlink line does not affect the change in illuminance of the light source unit.

According to an embodiment of the present invention, the street light is plural, and includes a first street light and a second street light, wherein the first street light is disposed closer to a side to which a vehicle approaches than the second street light, and the control unit, When approaching the first street lamp, it is possible to control the first street lamp to be turned on before the second street lamp.

According to an embodiment of the present invention, when the vehicle approaches the first street light, the controller may control the first street light to increase illuminance faster than the second street light.

According to an embodiment of the present invention, the communication unit of each of the plurality of street lights may transmit and receive the control signal between the plurality of street lights.

Another aspect of the present invention is a street lamp including a radar unit, a light source unit, and a communication unit and installed on either side of an uplink line or a downlink line; and a control unit for outputting a control signal for controlling the blinking of the street light, the street light control method capable of recognizing the presence or absence of a vehicle between an upbound vehicle and a downbound vehicle, wherein (a) the radar unit is a sensor outputting a detection signal by detecting the movement of the vehicle on the road using (b) receiving the control signal by the light source unit and emitting light on the road according to the control signal; (c) the communication unit receiving the detection signal from the radar unit and transmitting it to the control unit, and receiving the control signal from the control unit and transmitting it to the light source unit; and (d) the control unit receives and processes the sensing signal to calculate the speed of the vehicle and the distance from the vehicle, and control the blinking of the light source unit accordingly.

According to an embodiment of the present invention, the step (c) comprises: (c-1) dividing, by the control unit, the detection signal into a detection signal of the upbound vehicle and a detection signal of the downbound vehicle; and (c-2) controlling, by the controller, to turn on the light source when a detection signal is received from a vehicle traveling in a lane on which the radar unit is installed among uplink or downbound lines.

According to an embodiment of the present invention, in the step (c), the control unit controls whether a detection signal from a vehicle traveling in a lane on a side where the radar unit is not installed among an uplink line or a downlink line does not affect whether the light source unit blinks. can be controlled

According to an embodiment of the present invention, in the step (c), the control unit turns on the faster the speed of the vehicle traveling in the lane on the side where the radar unit is installed is approaching the radar unit side, the faster the light is turned on, and the vehicle moves from the radar unit side The greater the distance away speed, the faster it can be controlled to turn off the light.

According to an embodiment of the present invention, in step (c), the controller additionally controls the illuminance of the light source unit, and the speed at which a vehicle traveling in a lane on the side where the radar unit is installed increases as the speed at which the vehicle approaches and moves away from the radar unit increases. It is possible to control the illuminance of the light source to change rapidly.

According to an embodiment of the present invention, in step (c), the control unit controls the uplink line or the downlink line so that the detection signal from the vehicle driving the lane on the side where the radar unit is not installed does not affect the change in illuminance of the light source unit. can be controlled

According to an embodiment of the present invention, in step (c), the street lamp is plural, and includes a first street light and a second street light, wherein the first street light is disposed closer to the side to which a vehicle approaches than the second street light, When the vehicle approaches the first street light, the controller may control the first street light to be turned on before the second street light.

According to an embodiment of the present invention, in step (c), when the vehicle approaches the first street light, the controller may control the first street light to increase illuminance faster than the second street light.

According to an embodiment of the present invention, in step (d), the communication unit of each of the plurality of street lights may transmit and receive the control signal between the plurality of street lights.

According to the present invention, the power consumption of the street light can be minimized by using the radar to distinguish uplink/downline vehicles, and by blinking the streetlight or adjusting the illuminance only when the vehicle on the side where the radar unit is installed among the uplink or downbound line moves.

In addition, by changing the control speed of blinking and illuminance according to the moving speed of the vehicle with respect to the street lamp, and sequentially adjusting the blinking and illuminance between a plurality of street lamps, the vehicle's visibility is selectively secured and power consumption is reduced at the same time. can be minimized

1 is a view schematically showing each configuration of a street light control system according to an embodiment of the present invention.
2 is a view schematically showing each configuration of a street light control method according to an embodiment of the present invention.
3 is a diagram illustrating a sensing process by a street light control system capable of recognizing whether an uplink vehicle and a downlink vehicle have inter-lane vehicles according to an embodiment of the present invention.
4 is a diagram illustrating a process of sensing whether an uplink/downbound vehicle moves by calculating a distance to a vehicle through signal processing using a sensing signal according to an embodiment of the present invention.
5 is a diagram comparing the shape of the moving vehicle displayed on the GUI after signal processing according to an embodiment of the present invention and the actual vehicle movement situation.
6 is a diagram illustrating a process of calculating a distance and speed from a target vehicle according to a sensing principle according to an embodiment of the present invention.

Hereinafter, detailed contents for practicing the present invention will be described with reference to the accompanying drawings. In the description of the present invention, when it is determined that the subject matter of the present invention may be unnecessarily obscured as it is obvious to those skilled in the art with respect to related known functions, the detailed description thereof will be omitted.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes a plural expression unless the context clearly indicates otherwise, and components implemented in a dispersed form may be implemented in a combined form unless there is a special limitation. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Also, terms including ordinal numbers such as first, second, etc. used herein may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

1 is a view schematically showing each configuration of a street light control system according to an embodiment of the present invention. In addition, Figure 2 is a view schematically showing each configuration of the street light control method according to the embodiment of the present invention.

1, the street light control system capable of recognizing the presence or absence of a vehicle between the lanes of an uplink vehicle and a downlink vehicle according to an embodiment of the present invention is a street light 100 installed on either side of the uplink or downlink line, and the flashing of the street light and a control unit 200 for outputting a control signal to control.

The street lamp 100 includes a radar unit 110 , a light source unit 120 , and a communication unit 130 . One or more street lights 100 may be installed.

Referring to FIG. 2 , the radar unit 110 may detect the movement of the vehicle on the road using the sensor 111 and output a detection signal (s10). The sensor 111 may be a FWCW radar sensor.

The light source unit 120 may receive the control signal, and may emit light on the road according to the control signal (s20).

The communication unit 130 may receive the detection signal from the radar unit 110 and transmit it to the control unit 200 , and may receive the control signal from the control unit 200 and transmit it to the light source unit 120 ( s30 ).

The control unit 200 may receive and process the detection signal from the radar unit 110 to calculate the speed of the vehicle and the distance from the vehicle, and control the blinking of the light source unit 120 accordingly (s40).

3 is a diagram illustrating a sensing process by a street light control system capable of recognizing whether an uplink vehicle and a downlink vehicle have inter-lane vehicles according to an embodiment of the present invention.

Referring to FIG. 3, the control unit 200 divides the detection signal from the sensor 111 of the radar unit 110 into a detection signal of an upbound (1) vehicle and a detection signal of a downbound (2) vehicle (s31), When a detection signal is received from a vehicle traveling in a lane on the side where the street lamp 100 is installed among the upbound line 1 or the downbound line 2 , the light source unit 120 may be controlled to turn on (s32).

The detection signal may be an FMCW radar signal, and the controller 200 may calculate the speed of the vehicle and the distance from the radar unit 110 and the vehicle using the FWCW radar signal. Through this, it is possible to determine whether the uplink/downbound vehicle is moving or not.

The control unit 200 may control the detection signal from the vehicle driving the lane on the side where the street light 100 is not installed among the uplink 1 or the downlink 2 not to affect whether the light source unit 120 blinks. have.

For example, when the road on the side where the street lamp 100 is installed is the uplink line 1 , first, the radar unit 110 uses the sensor 111 to control the vehicle driving the uplink line 1 and the down line 2 . detect movement. Then, the control unit 200 receives and processes the detection signal from the radar unit 110, and calculates the speed and distance from the vehicle of the vehicle traveling in the uplink (1) among the uplink (1) and the downlink (2), Accordingly, the blinking of the light source unit is controlled. The control unit 200 turns on the light source unit faster as the speed of the vehicle traveling in the uplink 1 increases, or the vehicle traveling in the upline 1 is closer to the street lamp 100, the higher the speed of the vehicle traveling in the uplink 1 The slower the speed or the farther the vehicle traveling on the uplink 1 is from the street lamp 100, the slower the light source is turned on.

At this time, the control unit 200 controls the detection signal from the vehicle driving the downlink 2 , which is the lane on the side where the street lamp 100 is not installed, so as not to affect whether the light source unit 120 blinks.

Conversely, when the road on the side where the street lamp 100 is installed is the downbound line 2 , first, the radar unit 110 detects the movement of a vehicle traveling on the upbound line 1 and the downbound line 2 using a sensor. Then, the control unit 200 receives the detection signal from the radar unit 110 and processes it to calculate the speed and distance from the vehicle of the vehicle traveling in the downlink line 2 among the upbound line 1 and the downbound line 2 and Accordingly, the blinking of the light source unit is controlled.

At this time, the control unit 200 controls the detection signal from the vehicle traveling on the uplink line 1 , which is a lane on the side where the street lamp 100 is not installed, so as not to affect whether the light source unit 120 blinks.

In the conventional method of controlling the flashing of street lights, a method of controlling power consumption by adjusting the brightness of street lights using an infrared sensor, etc. has been mainly used, but according to the embodiment of the present invention Whether the light source is turned on or not is determined depending on whether or not a vehicle is traveling in the lane on the side where the street lamp is installed. Accordingly, since the lighting of the light source unit is not affected by whether the vehicle travels in the lane on the side where the street lamp is not installed, higher power efficiency can be achieved.

4 is a diagram illustrating a process of sensing whether an uplink/downbound vehicle moves by calculating a distance to a vehicle through signal processing using a sensing signal according to an embodiment of the present invention.

Referring to FIG. 4 , the radar unit 110 may be configured as an FWCW radar sensor, and may detect the number, speed, and coordinates of vehicles approaching or moving away from the radar unit 110 within a set detection box.

The controller 200 turns on the faster the vehicle traveling in the lane on the side where the street lamp 100 is installed approaches the radar unit 110 as the speed increases, and turns off the light as the speed at which the vehicle moves away from the radar unit 110 increases. can be controlled

Through this, the faster the vehicle reaches the radar unit 110 side, the faster the light source unit 120 is turned on to quickly secure a view of the vehicle traveling at a high speed, and the vehicle arrives slowly toward the radar unit 110 side. As the light source unit 120 is turned on more slowly, high power efficiency can be achieved.

Conversely, the faster the vehicle moves away from the radar unit 110 side, the faster the light source unit 120 is turned off to achieve high power efficiency, and as the vehicle slowly moves away from the radar unit 110 side, the light source unit 120 By slowly turning off the light, it is possible to secure a view of the vehicle traveling at a slow speed with a sufficient margin.

The control unit 200 additionally controls the illuminance of the light source unit 120, so that the greater the speed at which the vehicle traveling in the lane on the side where the street lamp 100 is installed approaches and moves away from the radar unit 110 is greater, the illumination of the light source unit 120 is increased. You can control it to change quickly.

Through this, as the vehicle reaches the radar unit 110 faster, the illuminance of the light source unit 120 is quickly increased to sufficiently secure a view of the vehicle traveling at a high speed, and as the vehicle slowly reaches the radar unit 110 side, the light source unit It is possible to achieve high power efficiency by slowly increasing the illuminance of 120 .

Conversely, as the vehicle moves away from the radar unit 110 quickly, the illuminance of the light source unit 120 is quickly lowered to achieve high power efficiency, and as the vehicle slowly moves away from the radar unit 110 side, the light source unit 120 . By slowly lowering the illuminance of the vehicle, it is possible to secure sufficient visibility of the vehicle traveling at a slow speed.

In addition, the control unit 200 controls so that the detection signal from the vehicle traveling in the lane on the side where the street lamp 100 is not installed among the ascending line 1 or the descending line 2 does not affect the change in illuminance of the light source unit 120 . can do.

According to the embodiment of the present invention, the illuminance of the light source unit is changed according to the speed of the vehicle traveling in the lane on the side where the street lamp is installed by dividing the vehicle traveling on the uplink line and the down line line. Accordingly, since the speed of the vehicle traveling in the lane on the side where the street lamp is not installed does not affect the change in illuminance of the light source unit, higher power efficiency can be achieved.

The street lamp 100 is plural, and may include a first street light 101 and a second street light 102 . The first street lamp 101 and the second street lamp 102 are arranged side by side on either side of the up-line (1) or the down-line (2). In addition, the first street light 101 is disposed closer to the vehicle approaching side than the second street light 102 .

When the vehicle approaches the first street light 101 , the controller 200 may control the first street light 101 to be turned on before the second street light 102 .

Conversely, when the vehicle moves away from the side of the first street light 110 , the controller 200 may control the first street light 101 to turn off before the second street light 102 .

Through this, when the vehicle approaches the first and second street lights 101 and 102, the first street light 101 disposed close to the approaching side of the vehicle is turned on before the second street light 102, so that the first street light By not turning on the second street lamp 102 while the 101 is turned on, it is possible to prevent wastage of power for the second street lamp 102 .

Conversely, when the vehicle moves away from the first and second street lights 101 and 102 , the first street light 101 disposed further away from the moving vehicle is turned off before the second street light 102 , so that the second street light 102 is turned off. ) is still lit, by quickly turning off the first street lamp 101, it is possible to prevent power wastage for the first street lamp 101.

When the vehicle approaches the first street light 101 , the controller 200 may control the first street light 101 to increase illuminance faster than the second street light 102 .

Conversely, when the vehicle moves away from the first street light 101 side, the controller 200 may control the first street light 101 to lower the illuminance faster than the second street light 102 .

Through this, when the vehicle approaches the first and second street lights 101 and 102, the illuminance of the first street light 101 disposed close to the approaching side of the vehicle increases faster than the illuminance of the second street light 102, It is possible to quickly secure the field of view of the vehicle approaching the first street light 101 first, and while the first street light 101 maintains brighter illumination, the power waste of the second street light 102 approaching the vehicle later is prevented can do.

Meanwhile, the communication unit 130 of each of the plurality of street lights 100 may transmit and receive a control signal between the plurality of street lights 100 .

Accordingly, whether the plurality of street lamps 100 flicker or not and changes in illuminance can be interlocked.

5 is a diagram comparing the shape of the moving vehicle displayed on the GUI after signal processing according to an embodiment of the present invention and the actual vehicle movement situation.

Referring to FIG. 5 , the situation of actual vehicle movement may be analyzed through a graph indicating the shape of the moving vehicle displayed on the GUI. The calculator may detect the coordinates and the speed of the moving vehicle for each vehicle by using the vehicle information detected through the radar unit 110 .

6 is a diagram illustrating a process of calculating a distance and speed from a target vehicle according to a sensing principle according to an embodiment of the present invention.

Referring to FIG. 6 , the distance and speed between the radar unit 110 and the vehicle may be analyzed through a graph indicating the distance and speed from the target vehicle. The calculation unit may analyze the frequency of a signal according to time of the sensed vehicle using information on the vehicle detected through the radar unit 110 , and calculate a distance and a speed from the target vehicle by using this.

The scope of protection in this field is not limited to the description and expression of the embodiments explicitly described above. In addition, it is added once again that the protection scope of the present invention cannot be limited due to obvious changes or substitutions in the technical field to which the present invention pertains.

Claims (18)

In the street light control system capable of recognizing the presence or absence of a vehicle between the lanes of an uplink vehicle and a downlink vehicle,
Street lights installed on either side of the uplink or downlink; and a control unit for outputting a control signal for controlling the blinking of the street lamp,
The street lamp is
a radar unit that detects the movement of a vehicle on the road using a sensor and outputs a detection signal;
a light source unit receiving the control signal and emitting light on the road according to the control signal; and
and a communication unit that receives the detection signal from the radar unit and transmits it to the control unit, and receives the control signal from the control unit and transmits it to the light source unit,
The control unit is
Receive and process the detection signal to calculate the vehicle speed and distance from the vehicle, and control the blinking of the light source unit accordingly;
The control unit divides the detection signal into a detection signal of the uplink vehicle and a detection signal of the downlink vehicle, and receives a detection signal from a vehicle traveling in a lane on which the street lamp is installed among the uplink or downlink. When receiving, the light source unit is controlled to turn on, and a detection signal from a vehicle traveling in a lane on the side where the street light is not installed among the uplink or downbound line is controlled so as not to affect whether the light source unit blinks or not,
The control unit controls so that the faster the speed at which the vehicle traveling in the lane on the side where the street light is installed approaches the radar unit increases, the faster the speed at which the vehicle moves away from the radar unit increases, the faster it turns off.
The control unit further controls the illuminance of the light source unit, and controls the illuminance of the light source unit to be rapidly changed as a speed at which a vehicle traveling in a lane on a side on which the street light is installed increases toward and away from the radar unit. Controls so that a detection signal from a vehicle traveling in a lane on the side where the street light is not installed among the uplink or downbound line does not affect the change in illuminance of the light source unit,
The street lamp is plural, and includes a first street light and a second street light, wherein the first street light is disposed closer to a side to which a vehicle approaches than the second street light, and the control unit is configured to: A street light control system, characterized in that the first street light is controlled to be turned on before the second street light, and the illuminance of the first street light is controlled to increase faster than the second street light.
delete delete delete delete delete delete delete According to claim 1,
A street light control system, characterized in that the communication unit of each of the plurality of street lights transmits and receives the control signal between the plurality of street lights.
a street lamp including a radar unit, a light source unit, and a communication unit and installed on either side of an uplink line or a downlink line; and a control unit for outputting a control signal for controlling the blinking of the street light, in a street light control method capable of recognizing the presence or absence of a vehicle between the lanes of an uplink vehicle and a downlink vehicle,
(a) detecting the movement of the vehicle on the road by the radar unit using a sensor and outputting a detection signal;
(b) receiving the control signal by the light source unit and emitting light on the road according to the control signal;
(c) the communication unit receiving the detection signal from the radar unit and transmitting it to the control unit, and receiving the control signal from the control unit and transmitting it to the light source unit; and
(d) the control unit receives and processes the detection signal to calculate the speed of the vehicle and the distance from the vehicle, and control the blinking of the light source unit accordingly,
Step (c) is,
(c-1) dividing, by the control unit, the detection signal into a detection signal of the upbound vehicle and a detection signal of the downbound vehicle; and
(c-2) comprising, by the control unit, controlling the light source unit to turn on when receiving a detection signal from a vehicle traveling in a lane on which the radar unit is installed among an uplink line or a downlink line;
In step (c),
The control unit controls a detection signal from a vehicle traveling in a lane on a side where the radar unit is not installed among uplinks or downlinks so as not to affect whether the light source unit blinks, and a side where the radar unit is not installed among uplinks or downlinks. The sensing signal from the vehicle driving the lane of
The control unit controls so that the faster the speed at which the vehicle traveling in the lane on the side where the radar unit is installed increases, the faster the speed at which the vehicle approaches the radar unit increases, and the faster the speed at which the vehicle moves away from the radar unit increases, the faster it turns off.
The control unit additionally controls the illuminance of the light source unit, and controls to rapidly change the illuminance of the light source unit as the speed at which the vehicle traveling in the lane on the side where the radar unit is installed increases toward and away from the radar unit, Controlling a detection signal from a vehicle traveling in a lane on a side where the radar unit is not installed among downlinks does not affect the change in illuminance of the light source unit,
The street lamp is plural, and includes a first street light and a second street light, wherein the first street light is disposed closer to a side to which a vehicle approaches than the second street light, and when the control unit causes the vehicle to approach the first street light, Controlling the first street lamp to be turned on before the second street lamp, and controlling the illuminance of the first street lamp to increase faster than the second street lamp when a vehicle approaches the first street lamp.
delete delete delete delete delete delete delete 11. The method of claim 10, wherein step (d) is
A street light control method, characterized in that the communication unit of each of the plurality of street lights transmits and receives the control signal between the plurality of street lights.

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