KR102183160B1 - Apparatus of displaying crosswork information using smart lighting - Google Patents

Abstract

Provided is a crosswalk information displaying device using smart lighting, which comprises: a signal input unit receiving a traffic light control signal notifying a change of a traffic signal and an image signal photographed including at least a pedestrian crossing; a situation determination unit determining content of a current traffic signal and a situation of the crosswalk in accordance with the traffic light control signal and the crosswalk photographing image signal; an information display lighting unit projecting information with light using the bottom surface of the crosswalk as a projection surface; and an information display processing unit providing traffic signal information notifying the content of the current traffic signal when the content of the traffic signal is a pedestrian signal and the crosswalk information notifying the crosswalk situation to the information display lighting unit.

Description

Crosswalk information display device using smart lighting {APPARATUS OF DISPLAYING CROSSWORK INFORMATION USING SMART LIGHTING}

The present invention relates to a crosswalk information display device using smart lighting, and more particularly, to a crosswalk information display device using smart lighting that displays signal information and various additional information on the crosswalk using smart lighting when a pedestrian signal is used. About.

In general, crosswalks are installed at regular intervals or irregularly at required locations on a road on which a vehicle is driven so that pedestrians can cross the other side.

In addition, traffic lights for controlling vehicles and guiding pedestrians to cross the pedestrian crossing are installed in such crosswalks.

Accordingly, the pedestrian waits when the vehicle is driving according to the signal of the traffic light, and checks the crossing signal when the crossing signal of the traffic light turns on and crosses it.

However, even though crosswalks and traffic lights are installed as described above, accidents frequently occurred while attempting to cross the streets without ignoring them.

In addition, when a pedestrian attempts to cross a crosswalk, there is a problem in which a high-speed vehicle violates the signal immediately after the pedestrian traffic light is turned on, or accidentally collides with a pedestrian without inadvertently stopping.

In addition, conventionally, the driving color signal turns on or the green signal flashes in the process of changing the signals of vehicle traffic lights and pedestrian traffic lights to give attention to drivers or pedestrians, but the signal is too short to be recognized by drivers or pedestrians. There is a problem that occurs.

In addition, pedestrians check the green signal of a pedestrian traffic light and cross the street, and when the green light blinks, some people run, but others (the elderly or the disabled) cannot run. At this time, if the signal is changed while crossing the crosswalk, there is a problem in that an accident often occurs due to a vehicle departing or a vehicle traveling at a high speed without identifying a person crossing the street.

In particular, there is a problem in that the incidence of traffic accidents at crosswalks is high in the case of the elderly or children who are not fast in gait or cannot quickly detect the fluctuation of signals.

Recently, it has been proposed to install a lighting device such as a street lamp that dims the crosswalk around the crosswalk.

Korean Patent Registration No. 10-1628906 relates to an apparatus and method for controlling automatic lighting of pedestrian crossings, and is approaching a pedestrian crossing based on pedestrian information in the pedestrian crossing and vehicle information collected through a camera that detects vehicles entering the pedestrian crossing. Disclosed is a technology that can inform pedestrians about the presence of a vehicle using a voice message and inform the driver that there is a pedestrian on a pedestrian crossing using a vehicle flasher.

Korean Patent Laid-Open No. 10-2018-0106649 relates to a lighting light control device and its method in connection with a crosswalk traffic light. It learns the waiting signal, the walking signal, and the crosswalk distance, and based on the learning result, green is connected with the crosswalk traffic light. In the case of a signal (walking) only, a crosswalk is illuminated based on the distance the pedestrians move, and in the case of a red signal (stop), a technology to illuminate the waiting area after lowering the illuminance is disclosed.

Korean Patent Registration No. 10-1628906 (2016.06.02) Korean Patent Publication No. 10-2018-0106649 (2018.10.01)

An embodiment of the present invention is to provide a crosswalk information display device using smart lighting that displays signal information and various additional information on a crosswalk using smart lighting when a pedestrian signal is used.

According to an embodiment of the present invention, by collecting the crosswalk situation in real time and providing lighting along with information on the crosswalk situation at a location where pedestrians can easily recognize it, it is possible to reduce personal and property damage caused by traffic accidents at the crosswalk. To provide a crosswalk information display device using smart lighting.

An embodiment of the present invention is to provide a crosswalk information display device using smart lighting capable of detecting a pedestrian walking on a crosswalk and adjusting an information display position and distance according to a period of a traffic signal.

Among the embodiments, the crosswalk information display device using smart lighting includes a traffic light control signal indicating a change in a traffic signal, a signal input unit receiving an image signal photographed including at least a crosswalk, the traffic light control signal and a crosswalk According to the photographed image signal, a situation determination unit that determines the content of the current traffic signal and the crosswalk situation, an information display lighting unit that projects information with lighting using the bottom surface of the crosswalk as a projection surface, and the content of the traffic signal In the case of a pedestrian signal, the information display processing unit provides traffic signal information indicating the content of the current traffic signal and crosswalk information indicating the crosswalk condition to the information display lighting unit.

The signal input unit receives the traffic signal through a traffic light including at least a pedestrian traffic light, and receives the image signal in which the crosswalk is photographed through an external camera installed around the crosswalk to collect crosswalk related data. I can.

The situation determination unit may analyze the received image signal to determine the occurrence of a dangerous situation including at least the pedestrian crossing and leaving the crosswalk.

When it is determined that a situation in which the traffic signal fluctuates while the pedestrian crosses the crosswalk, the situation determination unit may determine whether to recommend a return according to the movement speed of the pedestrian and the remaining distance of the crosswalk.

When the current traffic signal is a walking signal, the information display processing unit may adjust an angle of the information display lighting unit in a direction in which the pedestrian crosses the pedestrian crossing facing the pedestrian.

When the current traffic signal is a walking signal, the information display processing unit may adjust an angle of the information display lighting unit from the pedestrian's entrance direction to the exit direction according to the period of the signal.

Among embodiments, the crosswalk information display device using smart lighting further includes a sensing unit that detects at least one of distances and directions to at least one pedestrian walking on the crosswalk, and the information display processing unit is Correspondingly, the angle of the information display lighting unit can be changed.

The sensing unit may detect a longest distance to the farthest pedestrian among one or more pedestrians walking on a crosswalk, and the information display processing unit may increase or decrease the angle of the information display lighting unit according to the longest distance.

The disclosed technology can have the following effects. However, since it does not mean that a specific embodiment should include all of the following effects or only the following effects, it should not be understood that the scope of the rights of the disclosed technology is limited thereby.

The crosswalk information display device using smart lighting according to an embodiment of the present invention may display signal information and various additional information on the crosswalk by using smart lighting when a walking signal occurs.

The crosswalk information display device using smart lighting according to an embodiment of the present invention collects the crosswalk situation in real time and provides the light along with information about the crosswalk situation at a location where pedestrians can easily recognize the traffic at the crosswalk. It can reduce the damage to people and property caused by accidents.

The crosswalk information display device using smart lighting according to an embodiment of the present invention may detect a pedestrian walking on a crosswalk and adjust the information display position and distance according to a period of a traffic signal.

Therefore, when the crosswalk information display device using smart lighting according to an embodiment of the present invention is actually applied, it is more intuitive and physical to prevent unauthorized crossing or departure from the crosswalk due to individual errors or mistakes of pedestrians. Can reduce the occurrence of traffic accidents. In particular, it is possible to protect safety by providing measures to cope with the risk of changing signals during crosswalks to the socially underprivileged, such as the elderly and children.

1 is a diagram illustrating a crosswalk information display system using smart lighting according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a configuration of the crosswalk information display device in FIG. 1.
3 is a flowchart illustrating a process of displaying crosswalk information using smart lighting performed by the crosswalk information display device of FIG. 1.
4 is a diagram illustrating an example in which a traffic signal information display device according to an embodiment of the present invention operates.

Since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiments can be variously changed and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only those effects, the scope of the present invention should not be understood as being limited thereto.

Meanwhile, the meaning of terms described in the present application should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from other components, and the scope of rights is not limited by these terms. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

When a component is referred to as being "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, when it is mentioned that a certain component is "directly connected" to another component, it should be understood that no other component exists in the middle. On the other hand, other expressions describing the relationship between the constituent elements, that is, "between" and "just between" or "neighboring to" and "directly neighboring to" should be interpreted as well.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as “comprise” or “have” refer to implemented features, numbers, steps, actions, components, parts, or It is to be understood that it is intended to designate that a combination exists and does not preclude the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof.

In each step, the identification code (for example, a, b, c, etc.) is used for convenience of explanation, and the identification code does not describe the order of each step, and each step has a specific sequence clearly in context. Unless otherwise stated, it may occur differently from the stated order. That is, each of the steps may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

The present invention can be embodied as computer-readable codes on a computer-readable recording medium, and the computer-readable recording medium includes all types of recording devices storing data that can be read by a computer system. . Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices. Further, the computer-readable recording medium is distributed over a computer system connected by a network, so that the computer-readable code can be stored and executed in a distributed manner.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in commonly used dictionaries should be construed as having meanings in the context of related technologies, and cannot be construed as having an ideal or excessive formal meaning unless explicitly defined in the present application.

1 is a diagram illustrating a crosswalk information display system using smart lighting according to an embodiment of the present invention.

Referring to FIG. 1, a crosswalk information display system 100 using smart lighting may include a traffic light 110, a camera 120, a smart lighting 130, and a crosswalk information display device 140.

The traffic light 110 may include at least a traffic light for pedestrians installed at a crosswalk, and may further include a traffic light for a driver of a vehicle. In one embodiment, the traffic light 110 may be connected to the crosswalk information display device 140 through a network. Here, the traffic light 110 and the crosswalk information display device 140 may switch or maintain a traffic signal by a consistent control signal (a traffic light control signal).

Therefore, when the pedestrian signal is turned on at the traffic light 110, the crosswalk information display device 140 may display that the pedestrian signal is turned on by adjusting the angle of the smart lighting 130 in the direction crossing the pedestrian crossing. Conversely, when the pedestrian prohibition signal is turned on on the traffic light 110, the crosswalk information display device 140 may stop displaying the crosswalk information so as not to interfere with driving of a driving vehicle.

The traffic light 110 may be connected to a separate server (not shown) that controls signal change of the traffic light by wire or wireless.

The camera 120 may include an external camera installed at the crosswalk, and may utilize a CCTV camera for crime prevention around the crosswalk, a speed detection camera, a signal violation and a parking/stop violation monitoring camera. In one embodiment, the camera 120 may be connected to the crosswalk information display device 140 through a network. Here, the camera 120 may transmit image information obtained by photographing a crosswalk area to the crosswalk information display device 140. The camera 120 may detect a pedestrian crossing situation by photographing a crosswalk area.

The smart lighting 130 may correspond to a computing device capable of simultaneously providing information and lighting for a certain area, and may be connected to the crosswalk information display device 140 through a network. In one embodiment, the smart lighting 130 may be typically implemented in the form of a street light, but is not necessarily limited thereto, and may be implemented in various forms capable of displaying lighting or information using the bottom surface of a crosswalk as a projection surface. I can. In one embodiment, the smart lighting 130 may be implemented by being included in the crosswalk information display device 140 unlike FIG. 1, in this case, the smart lighting 130 configures the crosswalk information display device 140. It can serve as the information display lighting unit 240.

In an embodiment, the smart lighting 130 may provide specific information to a narrow area within a wide area together with a wide area illumination for a wide area. Here, the specific information may correspond to crosswalk information. The crosswalk information may include signal information about a traffic signal of the traffic light 110, situation information about a pedestrian crossing a crosswalk, and the like. The wide area may correspond to an area to which illumination is directly projected, and the range of the wide area may be changed according to the type of illumination and a distance from the projection surface. The narrow area may correspond to an area in which specific information is displayed within an area where illumination is projected.

The crosswalk information display apparatus 140 may be implemented as a server corresponding to a computer or program capable of providing real-time crosswalk situation information to the crosswalk when the traffic light 110 is a walking signal. The crosswalk information display device 140 may be connected to the traffic light 110, the camera 120, and the smart lighting 130 through a network to perform communication.

In one embodiment, the crosswalk information display device 140 is connected to a separate server (not shown) for the traffic light 110 through a network to change or maintain a traffic signal of the traffic light 110. It can be received with the traffic light 110.

When the crosswalk information display device 140 is connected or cannot be accessed through a network to a separate server (not shown) that controls the traffic light 110, the crosswalk information display device 140 signals a traffic light control signal from the server. It is not possible to receive and control the operation of the crosswalk information display device 140 according to the traffic light control signal. In this case, the crosswalk information display device 140 may detect the current traffic signal of the traffic light 110 through a sensor, and accordingly, the operation of the crosswalk information display device 140 may be controlled. In this case, the sensor may be a sensor capable of detecting at least the type of the traffic light 110 and the color being emitted.

In one embodiment, when the crosswalk information display device 140 cannot receive the crosswalk situation from the external camera 120, it may detect the crosswalk situation through a sensor, and accordingly, the crosswalk information display device ( 140) can be controlled. In this case, the sensor may be a sensor capable of detecting at least whether a pedestrian exists in a pedestrian crossing and a pedestrian's crossing position. This will be described in more detail in the embodiment described later with reference to FIG. 2.

FIG. 2 is a block diagram illustrating the configuration of the crosswalk information display device in FIG. 1.

2, the crosswalk information display device 140 includes a signal input unit 210, a sensing unit 220, a situation determination unit 230, an information display lighting unit 240, an information display processing unit 250, and a control unit ( 260).

The signal input unit 210 receives a traffic light control signal indicating a change of the traffic signal. The signal input unit 210 may receive a traffic light control signal from a server or traffic light 110 connected to the traffic light 110.

The signal input unit 210 receives a captured image signal including at least a crosswalk. The signal input unit 210 may receive an image signal in which the crosswalk is photographed from the external camera 120 installed around the crosswalk.

The sensing unit 220 may directly sense a traffic signal displayed by a current traffic light when the traffic light control signal is not received from the outside. Accordingly, the sensing unit 220 may detect the type of the traffic light 110 and a color currently emitting light.

In addition, the sensing unit 220 may directly sense a pedestrian crossing situation of a current crosswalk when the crosswalk photographing signal is not received from the outside. Accordingly, the sensing unit 220 may detect whether or not a pedestrian crossing is present, and if there is a pedestrian, at least one of a current distance and direction to the pedestrian, and a walking speed. In one embodiment, the sensing unit 220 may detect the sex, age, etc. of a pedestrian walking on a crosswalk.

The situation determination unit 230 may determine a crosswalk situation in real time based on signal information received through the signal input unit 210 or sensing information detected through the sensing unit 220. In an embodiment, the situation determination unit 230 may determine whether a walking signal is based on the content of the traffic signal. For example, when green light is emitted from a traffic light control signal or a traffic signal for a pedestrian, it may be determined as a walking signal. In an embodiment, the situation determination unit 230 may analyze a crosswalk photographing signal or determine whether a pedestrian exists in the crosswalk according to the detection of a pedestrian by the sensing unit 220. Here, the situation determination unit 230 may determine the occurrence of an unauthorized crossing situation in real time according to the current signal content when there is a pedestrian in the crosswalk. The situation determination unit 230 may also determine a crosswalk departure situation according to the position of the pedestrian. In an embodiment, the situation determination unit 230 may determine that the pedestrian is moving out of the crosswalk area as a crosswalk departure situation.

The situation determination unit 230 may determine a dangerous situation when a vehicle in the vicinity of the pedestrian crossing moves or approaches a pedestrian among the walking signals, particularly when the speed of the movement is faster than a preset speed. In addition, by transmitting this to the information display processing unit 250 or the like, a warning signal for danger may be generated. The same is true when the movement of a pedestrian entering or approaching the roadway is detected during the driving signal. Even in this case, the situation determination unit 230 may determine the movement of the pedestrian as a dangerous situation based on the direction and speed thereof.

The situation determination unit 230 may determine that a danger situation occurs when the content of a signal is changed from a walking signal to a driving signal while the pedestrian has not completed crossing the crosswalk. In particular, the situation determination unit 230 may determine whether to recommend a regression by reflecting the gender and age of the pedestrian. For example, when a pedestrian is a socially weak person having a poor ability to cope with a dangerous situation, such as an elderly person or a child, the situation determination unit 230 may determine a regression recommendation when the distance remaining for the crosswalk is longer than the distance the pedestrian crosses.

The information display lighting unit 240 may display signal information and crosswalk situation information together with lighting. The information display lighting unit 240 may be implemented by including a lighting device capable of projecting illumination and a projector capable of projecting information composed of text and images or images. The lighting device may be implemented with a plurality of lights, or may be implemented with one main name and a plurality of auxiliary lights. In an embodiment, the information display lighting unit 240 may provide specific information to a narrow area within a wide area along with a wide area illumination for a wide area.

The information display processing unit 250 can control the lighting and information projected by the information display lighting unit 240, and provide signal information informing the information of the current traffic signal to the information display lighting unit 240, and a crosswalk danger situation Upon determination, information on the crosswalk situation is provided to the information display lighting unit 240 so that pedestrians can safely cross the crosswalk. Here, the signal information may include one or more of the type of the current traffic signal, the remaining time of the corresponding signal, and a pedestrian's action guide, and the crosswalk situation information is a content that warns of a dangerous situation, a pedestrian's action guide (e.g. ) May be included, and these may be provided in one of text, image and video. For example, the information display processing unit 250 may provide light while providing textual information such as "walking signal, remaining time 10 seconds, cross a little faster" as signal information.

The information display processing unit 250 provides signal information and additional information (eg, advertisements) to the information display lighting lamp 240 even when there are no pedestrians at the crosswalk at the time of the pedestrian signal, so that the signal information is displayed on the floor of the crosswalk. Additional information can be displayed.

The information display processing unit 250 may change the attitude of the information display lighting unit 240 apart from providing signal information and crosswalk situation information. That is, the information display processing unit 250 may adjust the illumination angle of the information display lighting unit 240 according to the pedestrian detection position and signal period. The information display lighting unit 240 may include a tilting structure capable of changing an angle vertically or horizontally, and may be implemented to allow adjustment and change of the lighting angle mechanically.

In one embodiment, the crosswalk information display device 140 may be installed on both sides of the crosswalk so that actual lighting is projected on the entire floor of the crosswalk. At this time, the information display processing unit 250 may divide the crosswalk into a plurality of information display projection zones and adjust the angle of the information display lighting unit 240 to face the information display projection zone corresponding to the position of the pedestrian. Here, the information display projection zone corresponding to the pedestrian's position may be all or part of the floor of the crosswalk in front of the pedestrian's movement direction. The information display processing unit 250 may adjust the angle of the information display lighting unit 240 so that information can be displayed at a location where pedestrians can more easily check signal information and crosswalk situation information.

In an embodiment, the information display processing unit 250 may select an information display projection zone according to a signal period and adjust an angle of the information display lighting unit 240 to face the selected information display projection zone. Here, the information display processing unit 250 selects the starting point of the crosswalk, the intermediate point of the crosswalk, and the arrival point rather than the crossing as the information display projection zone at the time when the walking signal is turned on, in the middle, and immediately before the walking signal is turned off. Accordingly, the angle of the information display lighting unit 230 may be adjusted to face the selected information display projection zone.

In one embodiment, when the width of the crosswalk is wide and the pedestrians are distributed far away from the information display lighting unit 240, the information display processing unit 250 adjusts the height or angle of the information display lighting unit 240 as much as possible. Crosswalk situations can be made easily recognizable to many people.

For example, if the current traffic signal is a pedestrian signal and the longest distance from the current information display lighting unit 240 to a pedestrian at the farthest distance is d, and the vertical distance from the information display lighting unit 240 to a pedestrian is m, d and The sensing unit 220 senses the distance of m, and an appropriate angle θ of the information display lighting unit 240 may be calculated through the following equation.

[Equation 1]

In one embodiment, the information display processing unit 250 may differentially apply a color of lighting for each dangerous situation when a dangerous situation occurs. For example, when an unauthorized crossing occurs, the color of the lighting is set to red, It is possible to control the display of unauthorized crosswalk situation information alternately, and when pedestrians leave the crosswalk, the color of the lighting is set to white, so that the lighting and crosswalk departure situation information are alternately highlighted and displayed. .

The control unit 260 controls the overall operation of the crosswalk information display device 140, and the signal input unit 210, the sensing unit 220, the situation determination unit 230, the information display lighting unit 240 and the information display processing unit ( 250) can manage control flow or data flow.

FIG. 3 is a flow chart illustrating a process of displaying crosswalk information using smart lighting performed by the crosswalk information display device of FIG. 1.

The crosswalk information display apparatus 140 may collect crosswalk related data from the traffic light 110 and the external camera 120 (step S310). In one embodiment, the crosswalk information display device 140 may collect crosswalk related data by receiving a traffic signal displayed by the traffic light 110 and receiving crosswalk image data photographed by the camera 120. Here, the crosswalk information display device 140 may detect a traffic signal such as a traffic signal and detect a pedestrian at a crosswalk through sensors provided therein.

The crosswalk information display device 140 may determine signal information and a crosswalk danger situation based on the collected crosswalk-related data (step S320). In one embodiment, when the crosswalk information display device 140 receives a traffic light control signal, whether the traffic signal to be currently displayed is a walking signal or a driving signal, and what traffic signal information according to the remaining time for the signal to continue in the future. Can be created and displayed. The crosswalk information display device 140 analyzes the image data of the crosswalk based on the current traffic signal to determine whether a pedestrian crosses the crosswalk, unauthorized crossing, a dangerous situation due to departure from the crosswalk, and other dangerous situations that may occur. I can. The crosswalk information display device 140 may determine a danger situation in which a pedestrian cannot cross the crosswalk in the process of changing the current traffic signal from a pedestrian signal to a driving signal.

The crosswalk information display device 140 may provide the information display lighting unit 240 with crosswalk situation information including at least signal information for notifying the pedestrian of the crosswalk situation when the walking signal is performed (step S330). In one embodiment, the crosswalk information display device 140 is based on the gender and age of the pedestrian crossing the current crosswalk at the time of the walking signal, and the content of the signal and the remaining time for the signal to continue in the future, the remaining section of the pedestrian crossing. Accordingly, the crosswalk situation information requiring attention from the pedestrian can be provided to the information display lighting unit 240 that displays the information together by projecting lights on the floor of the crosswalk. Here, the crosswalk situation information may include one or more of text, still image, and video.

The crosswalk information display device 140 may adjust the illumination angle of the information display lighting unit 240 according to the pedestrian position and the signal period (S340). In one embodiment, the crosswalk information display device 140 may adjust the illumination angle of the information display lighting unit 240 to face the crosswalk floor, which is convenient for pedestrians, according to the moving position of the pedestrian. The information display lighting unit 240 may adjust the angle according to the current period of the traffic signal. For example, when the pedestrian signal is turned on, the illumination angle of the information display lighting unit 240 is adjusted in the direction of entering the crosswalk, and the angle is adjusted in the direction of entering the crosswalk immediately before the pedestrian signal is turned off. have. The crosswalk information display apparatus 140 may adjust the angle of the information display lighting unit 240 in more detail in consideration of the installation position of the information display lighting unit 240 and the distance and direction to the pedestrian.

The crosswalk information display device 140 may display crosswalk situation information together with lighting on the crosswalk floor (step S350). In one embodiment, the crosswalk information display device 140 may display crosswalk situation information along the movement direction of the pedestrian while the pedestrian crosses the crosswalk.

4 is a diagram illustrating an example in which a crosswalk information display device according to an embodiment of the present invention operates.

Referring to FIG. 4, the operation of the crosswalk information display device according to an embodiment of the present invention will be described when a pedestrian signal is used. Figure 4 (a) shows the state of the crosswalk with the pedestrian signal turned on. That is, a green light is on for pedestrian traffic lights and a red light is on for vehicle traffic lights.

The crosswalk information display device 140 is installed on one or both sides of the crosswalk, and while pedestrians cross the crosswalk, the information display lighting unit 240 is used to display the crosswalk situation along with lighting on the floor of the crosswalk. Pedestrians walking on a crosswalk can be informed of signal information and dangerous situations. In particular, the crosswalk information display device 140 adjusts the lighting angle of the information display lighting unit 240 to illuminate the floor of the crosswalk at a point where the pedestrian is good to see based on the position of the pedestrian, so that the pedestrian can easily recognize the displayed contents. I can.

While the traffic light is a walking signal, the crosswalk information display device 140 recognizes the crosswalk situation in real time using the traffic lights 110 and camera 120 installed around the crosswalk and displays the information display lighting unit 240. The crosswalk situation information including signal information is displayed on the floor of the crosswalk with lighting. As described above, the crosswalk situation information may include information on the content of a signal indicated by a current traffic light, a caution of a pedestrian according to the signal, and a remaining time for the corresponding signal to be maintained in the future. For example, as shown in (b) of FIG. 4, the crosswalk situation information is projected on the floor of the crosswalk in the form of'walking signal' and'remaining time 19 seconds' in the illuminated area along with the illumination area where illumination is projected. Can be displayed.

Although described above with reference to the preferred embodiments of the present application, those skilled in the art will variously modify the present application within the scope not departing from the spirit and scope of the present invention described in the following claims. And it will be appreciated that it can be changed.

100: Pedestrian crossing information display system using smart lighting
110: traffic light 120: camera
130: smart lighting 140: pedestrian crossing information display device
210: signal input unit 220: sensing unit
230: situation determination unit 240: information display lighting unit
250: information display processing unit 260: control unit

Claims (8)

A signal input unit configured to receive a traffic light control signal indicating a change of the traffic signal and an image signal photographed including at least a crosswalk;
A situation determination unit that determines the content of the current traffic signal and a crosswalk situation according to the traffic light control signal and the crosswalk image signal;
An information display lighting unit for notifying a pedestrian by projecting traffic signal information and crosswalk situation information along with lighting by using the floor surface of the crosswalk based on the position of the pedestrian as a projection surface; And
When the content of the traffic signal is a pedestrian signal, the information display lighting unit displays information on the crosswalk informing the situation of the crosswalk including traffic signal information indicating the type of the current traffic signal and the remaining time of the corresponding signal, and a pedestrian's behavior guide. Including the information display processing unit provided to,
The situation determination unit
By analyzing the received video signal, it is determined that at least the occurrence of a dangerous situation including the pedestrian's crosswalk, departure from the pedestrian crossing, and the movement of vehicles around the pedestrian crossing is determined, and the traffic signal is generated while the pedestrian crosses the pedestrian crossing. When it is determined that a fluctuating situation occurs, a crosswalk information display device using smart lighting, characterized in that it determines whether to recommend a return according to the movement speed of the pedestrian and the remaining distance of the crosswalk.
The method of claim 1, wherein the signal input unit
Receiving the traffic signal through a traffic light including at least a pedestrian traffic light, and collecting the crosswalk-related data by receiving the image signal taken of the crosswalk through an external camera installed around the crosswalk. Crosswalk information display device using smart lighting.
delete delete The method of claim 1, wherein the information display processing unit
When the current traffic signal is a walking signal, a crosswalk information display device using smart lighting, characterized in that the angle of the information display lighting unit is adjusted in a direction in which the pedestrian crosses the pedestrian crossing opposite to the pedestrian.
The method of claim 1, wherein the information display processing unit
When the current traffic signal is a walking signal, a crosswalk information display device using smart lighting, characterized in that the angle of the information display lighting unit is adjusted from the pedestrian's entry direction to the exit direction of the pedestrian crossing according to a period of the signal.
The method of claim 1,
Further comprising a sensing unit for detecting at least one of the distance and direction to the at least one pedestrian walking on the crosswalk,
The information display processing unit changes the angle of the information display lighting unit in accordance with the distance and direction.
The method of claim 7, wherein the sensing unit
Detecting the longest distance to the farthest pedestrian among the one or more pedestrians walking on a crosswalk,
The information display processing unit, the crosswalk information display device, characterized in that for adding or subtracting the angle of the information display lighting unit according to the longest distance.

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