Traffic signal system

Abstract

The invention provides a novel traffic signal system capable of preventing traffic accidents and safety accidents possibly caused by incapability of seeing a signal lamp.

Description

TECHNICAL FIELD

[0001] The present invention relates to a traffic signal system, and more particularly, to a traffic signal system that improves visibility of a signal light. BACKGROUND

[0002] A signal light is generally installed at a crossroad, a crossing, etc., and is a device for allowing vehicles and pedestrians to travel, walk, and stop. The signal light can display a green, red, direction, etc. signal, and is composed of a plurality of LEDs, and thus can display a travel, walk, and stop signal through color.

[0003] However, when a pedestrian or a driver looks at a signal light, if there is a sun or a strong light in front of the view, there can be a case where the signal light cannot be accurately observed. This is a phenomenon caused by a narrow signal light area when the signal light is blocked by the sun or the strong light. Thus, there is a problem in that a traffic accident and a safety accident can occur.

[0004] As a patent related to a traffic signal system, Korean Patent No. 10-2614255 discloses a system including a camera for acquiring traffic information and road surface state information, and a traffic information sign 70 displaying variable display information according to traffic conditions, climate state, and time period.

[0005] Korean Patent No. 10-2604315 discloses a wireless transceiver device of a traffic signal controller as a wireless transceiver device for a pedestrian to control a traffic signal controller, the device including a signal control part for controlling a signal light by arbitrarily controlling a green signal lighting time or an additional pedestrian green signal extinguishing time, a traffic signal controller connected to a remote traffic control center, and a wireless pressure button switch provided at a crossroad to generate a walking signal of a pedestrian.

[0006] Korean Patent No. 10-2564695, which is a prior patent of the applicant, discloses a traffic signal system including a signal light unit and a control part, wherein the signal light unit includes a signal light composed of a plurality of LEDs for displaying a signal for vehicle travel, a signal light support body for supporting the signal light, and a signal auxiliary lighting part disposed at an edge area of the signal light support body to output light of a plurality of colors, and the control part can control the plurality of LEDs to be turned on according to a signal control signal of the signal light to control the signal auxiliary lighting part to output a color identical to that of the signal light.

[0007] The present invention aims to further improve these patents so that a driver of a vehicle and a pedestrian can easily recognize and easily understand a signal standby time, and can accurately provide road and section information to the driver and the pedestrian according to a travel direction of the vehicle. SUMMARY

[0008] Problem to be solved by the invention

[0009] Therefore, the object of the present invention is to provide a traffic signal system which can prevent traffic accidents and safety accidents that can occur due to not seeing a signal light.

[0010] Means for solving the problem

[0011] To achieve the above object, the present invention provides a traffic signal system including a signal light unit and a control portion; the signal light unit includes a signal light consisting of a plurality of LEDs displaying a signal regarding driving of a vehicle, a signal light support body for supporting the signal light, and a signal light auxiliary lighting portion disposed at an edge area of the signal light support body to output light of a plurality of colors; the control portion controls a manner in which the plurality of LEDs are lit according to a signal control signal of the signal light, and controls the signal light auxiliary lighting portion to output light of the same color as that of the signal light; an LED mounted at an upper edge or a lower edge of the signal light support body is configured to light and display a prescribed caution mark, the control portion stores control setting information including a display time of the signal light, and lights the caution mark of the signal light support body according to the signal display time of the control setting information when the signal light is turned on, the caution mark is formed in a row by square or circular patterns and is all lit when a green signal light is emitted, and the control portion controls the number of the square or circular patterns to be decreased as the display time decreases, the caution mark is formed in a row by arrow patterns having a left side as a vertex and is all lit when a left turn signal light is emitted, and the control portion controls the number of the arrow patterns to be decreased as the display time decreases.

[0012] The signal light further includes a right turn signal light, the caution mark is formed in a row by arrow patterns having a right side as a vertex and is all lit when the right turn signal light is emitted, and the control portion can control the number of the arrow patterns to be decreased as the display time decreases.

[0013] When the control portion detects a pedestrian existing in a pedestrian crossing area or receives a signal that other signal lights of a right turn crossroad are switched to green signal lights through a communication portion of the traffic signal system, the control portion does not light the LEDs of the right turn signal light and the signal light auxiliary lighting portion.

[0014] The upper side or the lower side of the signal light auxiliary lighting portion can further include a road information caution portion, and the road information caution portion can include a road name address caution portion and a road condition caution portion.

[0015] The road name address prompting section displays a road name of a straight road, a road name when driving to the left, and a road name when driving to the right, and the road name can be a road name according to road traffic regulations such as "doro" or "michi" or "street."

[0016] The road name address prompting section can also display a building included in a road name address of a straight driving or left driving or right driving section.

[0017] The road condition prompting section is provided adjacent to each road name address prompting section and displays in words whether a section of a corresponding road name address when driving straight, turning left, or turning right is in a "normal," "slightly delayed," or "congested" state, and the control section can receive road traffic conditions in real time through a communication section of a traffic signal system and display congestion information.

[0018] Inventive Effects

[0019] According to the present application, the signal auxiliary lighting section is provided in an edge area of a signal lamp support body, and the color of the signal auxiliary lighting section can be output in the same manner as the color of the signal lamp, thereby preventing the signal auxiliary lighting section from being obscured by the sun or strong light and increasing visibility to prevent traffic accidents and safety accidents and to improve user safety.

[0020] In addition, the following effects are provided: since the remaining time of the signal or a specific mark indicating the driving direction is displayed in a state in which visibility is improved by the signal auxiliary lighting section, the user can safely drive and walk by observing the remaining time, and the visibility of the user can be further increased by changing the color, size, or number of marks of the displayed remaining time.

[0021] In addition, the following effects are provided: when the remaining time changes, the signal auxiliary lighting section can also blink to increase visibility, and the luminous intensity of the signal auxiliary lighting section can be set to be greater than the luminous intensity of the signal lamp, thereby further increasing the visibility of the user observing.

[0022] In addition, the following effects are provided: the signal lamp with additional improved visibility (not only the visibility of the left turn is improved, but also the visibility of the right turn is improved) can be displayed, and the sign of the road name address already used in life and the corresponding road information can be more effectively displayed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is an example diagram of a traffic signal system according to the present application.

[0024] Figure 2 is an example diagram of a signal auxiliary lighting section.

[0025] Figure 3 is an example diagram of color and size change of the signal auxiliary lighting portion according to the remaining time.

[0026] Figure 4 is an example action diagram of the signal auxiliary lighting portion according to the remaining time.

[0027] Figure 5 is a control block diagram of the traffic signal system.

[0028] Figure 6 is a diagram showing the signal lamp auxiliary lighting portion displaying a square mark in time series.

[0029] Figure 7 is a diagram showing the action when the signal lamp auxiliary lighting portion displays a square mark in addition to Figure 6 the embodiment.

[0030] Figure 8 is a diagram showing the same right-turn traffic signal lamp as Figure 7 , in which the left-turn signal lamp is placed at the leftmost side and displays an arrow mark for the convenience of seeing the left-turn signal lamp.

[0031] Figure 9 is a diagram according to another embodiment of the present application, showing that the upper side of the signal lamp auxiliary lighting portion in the signal lamp unit further includes a road information prompting portion.

[0032] Figure 10 is a diagram showing that the display of the road information prompting portion changes with the lighting of the signal lamp in Figure 9 . DETAILED DESCRIPTION

[0033] The present application can be applied to various modifications and can have various embodiments, and thus a specific embodiment is exemplified in the accompanying drawings and will be described in detail in the specific contents for implementing the present application. However, it should be understood that this is not to limit the present application by the specific embodiment, but to include all changes, equivalents, and even substitutes contained in the idea and technical scope of the present application.

[0034] Hereinafter, a traffic signal system 1 according to a preferred embodiment of the present application will be described in detail with reference to the accompanying drawings.

[0035] Figure 1 is an example diagram of the traffic signal system 1 according to the present application, Figure 2 is an example diagram of the signal auxiliary lighting portion 13, Figure 3 is an example diagram of color and size change of the signal lamp auxiliary lighting portion 13 according to the remaining time, Figure 4 is an example action diagram of the signal auxiliary lighting portion 13 according to the remaining time, Figure 5 is a control block diagram of the traffic signal system 1.

[0036] Reference Figures 1 to 5 The structure of the traffic signal system 1 will be described.

[0037] The traffic signal system 1 includes a signal lamp unit 10, a communication part 20, a speaker 22, a camera 24, an illumination part 26, a rotation driving part 28, and a control part 30.

[0038] The signal lamp unit 10 is used to provide a signal for vehicle driving and walking on a pedestrian crossing to a driver of a driving vehicle and a pedestrian walking on a sidewalk. The signal lamp unit 10 can include a signal lamp support body 11, a signal lamp 12, and a signal lamp auxiliary illumination part 13.

[0039] The signal lamp support body 11 is used to support the signal lamp 12. The signal lamp support body 11 has a shape to support the signal lamp in a state of being supported by a signal lamp support column.

[0040] The signal lamp 12 is composed of a plurality of LEDs that display a signal for vehicle driving. The signal lamp 12 can include a red signal lamp 121, a green signal lamp 122, and a direction signal lamp 123. That is, the red signal lamp 121, the green signal lamp 122, a yellow signal lamp, and the direction signal lamp 123, etc. can all be provided in one signal lamp support body 11.

[0041] The red signal lamp 121 provides a signal for a stop indication. In the case of the red signal lamp 121, a plurality of first LEDs 121-1 that output red are disposed in a signal lamp area. The plurality of first LEDs 121-1 of the entire area can all be turned on or off, or only some of the plurality of first LEDs 121-1 can be turned on. Although limited to the plurality of first LEDs 121-1, various colors can be implemented.

[0042] The green signal lamp 122 provides a signal for vehicle driving and walking on a pedestrian crossing. A plurality of second LEDs 122-1 that output green can be disposed in a signal lamp area. The plurality of second LEDs 122-1 of the entire area can all be turned on or off, or only some of the plurality of second LEDs 122-1 can be turned on. Although limited to the plurality of second LEDs 122-1, various colors can be implemented.

[0043] The direction signal lamp 123 is used to provide a signal for a vehicle to turn left at an intersection. A plurality of third LEDs 123-1 are disposed in a signal lamp area, and some of the plurality of third LEDs 123-1 can be turned on to display a direction and a remaining time. The plurality of third LEDs 123-1 of the signal lamp area can be provided to implement various colors, and can be turned on or off to display various shapes of signs, road signs, pictures, etc.

[0044] The signal lamp auxiliary lighting part 13 is disposed at the edge part (outer edge part) of the signal lamp support body 11 to output light of various colors. A plurality of fourth LEDs 131 outputting light of various colors can be disposed at the edge part of the signal lamp support body 11. The plurality of fourth LEDs 131 at the edge part of the signal lamp support body 11 can be turned on or off all at once or only a part of the plurality of fourth LEDs 131 can be turned on. Although limited to the plurality of fourth LEDs 131, various colors can be implemented.

[0045] The communication part 20 can transmit signal-related data to a central control room or outside. The communication part 20 can perform wireless communication including at least one of infrared communication, radio frequency (RF), ZigBee, Bluetooth. The communication part 20 receives a video signal and transmits it to the control part 30 to be described later, and can be implemented in various ways to correspond to the specifications of the received video signal and the implementation form of the user terminal. For example, the communication part 20 receives a radio frequency (RF) signal transmitted from a broadcasting station (not shown) in a wireless form, or receives video signals of various specifications such as composite video, component video, super video, SCART interface, high definition multimedia interface (HDMI) in a wired form. When the video signal is a broadcast signal, the communication part 20 can include a tuner that tunes the broadcast signal by channel.

[0046] The communication part 30 can communicate with other signal lamp units adjacent thereto in the vicinity or receive road traffic information from a public agency.

[0047] The speaker 22 can output sound to the sidewalk area and the lane area at a predetermined volume. The speaker 22 can be provided to be able to adjust the size of the volume, and can be provided to be able to deliver sound to only an arbitrary one of the narrow areas, and can be provided to be able to deliver sound to a large range of areas.

[0048] The camera 24 can photograph the front of the signal lamp support body 11. The camera 24 photographs the sidewalk area including a crossing waiting area where a pedestrian waits to cross a crosswalk, and the lane area including a vehicle waiting area where a vehicle waits to pass through the crosswalk area and the crosswalk. The camera 24 can be supported by the signal lamp support body 11 to photograph. The camera 24 can be provided on each of the signal lamp support bodies 11.

[0049] The lighting portion 26 can output light to the sidewalk area and the lane area at a prescribed light emission intensity. The lighting portion 26 is preferably configured to be able to output light having an intensity greater than that of a normal street light. The lighting portion 26 can output light with highlighting, can output light with concentration, and can freely flicker and light up. The lighting portion 26 can be rotatably supported by the signal lamp support body 11.

[0050] The lighting portion 26 can also have a plurality of light filters through which the lighting light is output. The plurality of light filters are configured to be irradiated on the lane to be able to transmit information to a driver driving on the lane in the form of a word or a picture, or the like. For example, it can be a short sentence "Please stop.", or can be a picture or the like that can emphasize a pedestrian.

[0051] The rotation driving portion 28 drives the lighting portion 26 to be able to rotate with respect to the signal lamp support body 11. The rotation driving portion 28 is configured by a rotation motor, a turntable, or the like, and is able to cause the lighting portion 26 to output light in each direction.

[0052] The control portion 30 controls the plurality of LEDs to be lit in accordance with a signal of the signal lamp 12, and controls the signal auxiliary lighting portion 13 to output a color that is the same as that of the signal lamp 12. The control portion 30 stores control setting information including a signal display time of the signal lamp 12, and when the signal lamp 12 is turned on, can control the plurality of LEDs to display a remaining time in the signal display time in accordance with the signal display time of the control setting information.

[0053] The control portion 30 can control at least one of a color, a size, and the like of the signal auxiliary lighting portion 13 and the remaining time displayed to change as the remaining time displayed in the signal lamp 12 area decreases.

[0054] When the displayed remaining time is changed as the remaining time displayed in the signal lamp 12 area decreases, the control portion 30 can control the signal auxiliary lighting portion 13 to flicker.

[0055] The control portion 30 can set a light emission intensity of the signal auxiliary lighting portion 13 to be at least greater than that of the signal lamp 12. Figure 2 is an embodiment example of the signal auxiliary lighting portion 13.

[0056] Figure 2 The signal lamp of (a) of the signal lamp 12 displays a remaining time of a signal, and when a color of the remaining time is green, a color of the signal auxiliary lighting portion 13 is also displayed as the same green.

[0057] Figure 2The turn signal 123 in the signal lamp 12 in the (b) portion of FIG. 10 is in an on state, and the turn signal 123 is in an on state in green, and the color of the signal auxiliary illumination portion 13 is also displayed in the same green.

[0058] Figure 3 FIG. 11 is an example diagram of the color and size change of the signal auxiliary illumination portion 13 according to the remaining time.

[0059] Figure 3 The remaining time displayed in the green signal lamp 122 area in the (a) portion of FIG. 12 is reduced to 11, and the color displayed in the signal auxiliary illumination portion 13 can be changed from green to yellow. The color of the remaining time displayed in the green signal lamp 122 area can be changed from green to yellow, and then to red over time.

[0060] Figure 3 The remaining time displayed in the green signal lamp 122 area in the (b) portion of FIG. 13 is reduced to 5, and the size of the light output area can be reduced to output light only from the inner area in the signal auxiliary illumination portion 13 area.

[0061] Figure 4 FIG. 14 is an example action diagram of the signal auxiliary illumination portion according to the remaining time.

[0062] In Figure 4 The remaining time displayed in the green signal lamp 122 area in the (a) portion of FIG. 14 is displayed as 7 seconds, and the color of the signal auxiliary illumination portion 13 area is displayed in the same green.

[0063] In Figure 4 The remaining time displayed in the green signal lamp 122 area in the (b) portion of FIG. 15 is in an off state to change from 7 seconds to 6 seconds, and the signal auxiliary illumination portion 13 area is also in the same off state.

[0064] In Figure 4 The remaining time displayed in the green signal lamp 122 area in the (c) portion of FIG. 16 is changed from 7 seconds to 6 seconds, and the color of the signal auxiliary illumination portion 13 area is also displayed in the same green.

[0065] Thus, when the displayed remaining time is changed as the remaining time displayed in the signal lamp area is reduced, the output of the signal auxiliary illumination portion 13 is controlled to flicker.

[0066] A transformable example other than the above-described embodiment is described.

[0067] The control portion 30 stores signal lamp setting information including the display time of the signal lamp unit 10, and when the signal lamp 12 starts to display, the control portion 30 can control the plurality of LEDs of the signal lamp 12 to display the remaining time in the display time of the signal lamp 12 in units of seconds based on the signal lamp display time of the signal lamp setting information.

[0068] The control portion 30 can control the speaker 22 to output the remaining time in sound, corresponding to the remaining time in the display time of the signal lamp 12 displayed in seconds.

[0069] The control portion 30 sets the remaining time in the display time of the signal lamp 12, and when the set remaining time is reached, controls the camera 24 to photograph the front of the signal lamp support body 11, and can store the photographed video of the front of the signal lamp support body 11.

[0070] When it is judged that there is a scene judged as an accident in the stored video of the front of the signal lamp support body 11, the control portion 30 can control to transmit the stored video of the front of the signal lamp support body 11 to a public institution including a police station.

[0071] When it is judged that there is no scene judged as an accident in the stored video of the front of the signal lamp support body 11, the control portion 30 can control in such a manner that the corresponding video is deleted after a predetermined time.

[0072] An alarm portion that provides warning information to pedestrians or vehicle drivers can also be included. The alarm portion can use the signal lamp 12, and can also be provided as lighting or a speaker, etc., and can warn pedestrians or vehicle drivers of what is happening at the crosswalk and the surrounding area.

[0073] The control portion stores control setting information including the flashing time of each of the plurality of signal lamps 12, and based on the stored control setting information, lights at least one of the plurality of signal lamps, and when the corresponding signal lamp is turned on for a predetermined time, can control the corresponding plurality of LEDs to display the remaining time.

[0074] When a signal corresponding to the corresponding signal lamp is displayed in the area of the corresponding signal lamp, the control portion can control the remaining time to be displayed on the corresponding display lamp.

[0075] When the corresponding signal lamp is turned on for a predetermined time, the control portion can control the remaining time to be displayed in the area of the corresponding signal lamp, and the signal corresponding to the corresponding signal lamp to be displayed on the corresponding auxiliary signal lamp.

[0076] When the corresponding signal lamp is turned on for a predetermined time, the control portion can control the remaining time to be displayed in the area of the corresponding signal lamp along with the signal corresponding to the corresponding signal lamp.

[0077] The control portion can change the proportion of at least one of the regions in the contents area displayed in the signal light area by controlling the first, second, third, and fourth LEDs uniformly distributed in the signal light area of the red signal light, green signal light, and direction signal light, can delete at least one of the regions, and can change the position of at least one of the regions.

[0078] The control portion can determine the defective LED region by determining the current supply state, voltage, and resistance of the first, second, third, and fourth LEDs uniformly distributed in the signal light area of the red signal light, green signal light, and direction signal light. Thus, the control portion can determine the displayable region of the contents and control the contents to be displayed in the displayable region of the contents.

[0079] When the remaining time decreases to the set time, the control portion can warn the driver of the vehicle by flickering the red LED of the adjacent signal light. In addition, the corresponding signal light and the LED displaying the remaining time can be flickered to prevent the vehicle from entering the intersection. At the same time, a sound for preventing entry into the intersection can be output through the speaker.

[0080] The lighting portion can further form a lighting screen to prevent entry into the intersection.

[0081] The control portion can further set a limit time in the remaining time and control the plurality of LEDs to display a sentence for prohibiting entry in the signal display area of the signal light 12 when the remaining limit time elapses.

[0082] As the remaining time decreases, the control portion can increase the luminosity of the plurality of LEDs of the display area of the signal display area of the signal light 12, including the brightness and luminance.

[0083] With the traffic signal system 1 described above, the signal light auxiliary lighting portion is installed in the edge area of the signal light support body, the color of the signal light auxiliary lighting portion is output in the same manner as the color of the signal light, the situation of being blocked due to the sun or strong light can be prevented, the visibility can be increased to prevent traffic accidents and safety accidents, and the safety of the user can be improved.

[0084] In addition, since the remaining time of the signal is displayed in a state in which the visibility is increased by the signal light auxiliary lighting portion, the user can travel and walk safely by observing the remaining time, and the visibility of the user can be further increased by changing at least one of the color and size of the displayed remaining time. In addition, when the remaining time changes, the signal light auxiliary lighting portion can further flicker to increase the visibility, and the luminous intensity of the signal light auxiliary lighting portion can be set to be greater than the luminous intensity of the signal light, so that the visibility of the user observing is further increased.

[0085] Next, the prompting display function of the signal lamp auxiliary illuminating section 13 will be explained through another embodiment of the present application.

[0086] The signal lamp unit 10 includes a signal lamp support body 11, a signal lamp 12, and a signal lamp auxiliary illuminating section 13. In the signal lamp auxiliary illuminating section 13, fourth LEDs 131 installed at the upper edge of the signal lamp support body 11 are configured to display by flickering a prescribed prompting mark. The fourth LEDs 131 form a grid shape in which point light sources are closely arranged at prescribed intervals, and can display a specific mark or signal by causing only part of the LEDs to emit light through control by the control section.

[0087] For example, in Figure 6 , the fourth LEDs 131 display a square mark 1310. When the green signal lamp 122 is emitting light, the square mark 1310 is displayed by lighting the LEDs that form the square outline in the fourth LEDs 131 and the LEDs inside the outline. The lighting method is to first light all of the marks 1310, and over time, the lit marks 1310 are extinguished one by one, and finally all of the marks 1310 are extinguished.

[0088] Figure 6 The (a) part of FIG. 13 shows a view of the signal lamp auxiliary illuminating section 13 at the upper edge lighting all of the LEDs that make up the square mark 1310. At this time, it is the instant that the green signal lamp 122 is turned ON, and the vehicle or pedestrian can know through the mark 1310 that it is permissible to travel or walk and that there is ample time.

[0089] Figure 6 The (b) part of FIG. 13 shows a view of the signal lamp auxiliary illuminating section 13 at the upper edge lighting about half of the LEDs that make up the square mark 1310. If the lighting time of the green signal lamp 122 at the pedestrian crossing is 30 seconds, then about half of the square mark 1310 is lit at about 15 seconds, and if the lighting time of the green signal lamp 122 at the travel road is 3 minutes, then about half of the square mark 1310 is lit at about 1 minute and 30 seconds.

[0090] Figure 6 The (c) part of FIG. 13 shows a view of the signal lamp auxiliary illuminating section 13 at the upper edge in which almost all of the LEDs that make up the square mark 1310 are extinguished and only one remains. The driver or pedestrian can realize that the signal will soon stop and thus stop traveling or walking to ensure safety.

[0091] In the present application, the reason that the square mark 1310 is associated with the green signal light 122 is that the green signal light indicates the movement of the pedestrian crossing that is being driven or straight, and thus is more appropriate than the well-known figure without directionality than the mark showing the direction. Therefore, the mark 1310 can use a circle or an ellipse in addition to the square. As in the previous embodiment, the mark 1310 is preferably displayed in a color that is darker or brighter than the signal light.

[0092] In addition, the color of the mark 1310 is preferably illuminated in the same green color as the green signal light 122 to minimize the confusion of the driver or the pedestrian. The mark 1310 can be variously deformed in addition to being arranged in a row on the upper portion, such as being arranged on the lower portion or being arranged on both the upper and lower portions.

[0093] Then, especially when installed on a road on which a car is driven, the signal light auxiliary lighting portion 13 of the present application can display a direction mark 1310 at the time of left turn / right turn to inform the remaining time. As an example of the direction mark 1310, "<" figures informing the left turn can be arranged in a row, or ">" figures informing the right turn can be arranged in a row.

[0094] On the basis of the above-described embodiment, Figure 7 A right turn signal light 124 is further included. In Figure 7 The fourth LED 131 displays a mark 1310 in the shape of an arrow with the right side as the vertex. When the right turn signal light 124 is illuminated, the mark 1310 in the shape of an arrow is displayed by illuminating the LEDs forming the outline of the arrow and the LEDs inside the outline among the fourth LEDs 131. The method of illumination is to first illuminate all the marks 1310 Figure 7 (a) portion of FIG. 13), and as time passes, the illuminated marks 1310 are extinguished one by one Figure 7 (b) portion of FIG. 13), and finally all the marks 1310 are extinguished.

[0095] Recently, the road traffic law of Korea has been revised so that when a vehicle turns right, the vehicle has the obligation to stop during the period in which the pedestrian crossing is illuminated green or the pedestrian is walking on the pedestrian crossing. When the control portion of the present application detects the presence of a passerby in the pedestrian crossing area through the camera 24 or receives a signal that the other signal light of the right turn intersection is converted into a green signal light through the communication portion 20, the right turn signal light 124 and the fourth LED 131 are not illuminated. In addition, if the above event occurs, the conversion into the extinguished state is performed by transmitting an extinguishing signal even in the illumination.

[0096] Figure 8 With respect to the example of the left turn signal light 123 corresponding to the right turn signal light 124 of Figure 7 The fourth LED 131 displays a mark 1310 in the shape of an arrow with the left side as the vertex, and first, all the marks 1310 are illuminated (Figure 8 (a) As time progresses, the lit markers 1310 gradually turn off. Figure 8 (part (b)).

[0097] Figure 9 In another embodiment of the present invention, a road information prompting unit 15 is further included on the upper side of the traffic light auxiliary lighting unit 13 in the traffic light unit 10. The road information prompting unit 15 includes a road name and address prompting unit 150 and a road condition prompting unit 152.

[0098] Currently in South Korea, since 2014, the use of road names in addresses has been mandatory. Roads are designated with prefixes such as "Major Road" (e.g., Gangnam-daero), "Road" (e.g., Tehran 10-ro), and "Street" (e.g., Doro-ga), and are numbered sequentially from their location (1, 2, 3, etc.). However, various issues have caused inconvenience for many citizens, such as the long-standing use of house numbers, the lack of widespread adoption of road name addresses, insufficient road signage, and excessively small font sizes.

[0099] Therefore, as Figure 9 As shown, this invention guides drivers and pedestrians by displaying the names of roads for straight-ahead traffic, roads for left-hand traffic, and roads for right-hand traffic. Currently, many places have road name and address signs, but these suffer from a lack of visibility and guidance, and high maintenance costs when road names and addresses change or disappear. However, by using the road name and address prompting unit 150 of this invention, road names and addresses can be identified more accurately and clearly due to its excellent visibility, and can be easily modified when road names and addresses change. Figure 9 The example illustrates how to display a road name address, but other road name addresses can also be displayed if needed, such as the name address of the main road you will pass when going straight.

[0100] Furthermore, while simply displaying representative road names is used as an example, the road name address prompt unit 150 can also display the main buildings in the corresponding area. This solves the problem that current road signs often display major government offices or facilities (such as the city hall or Guanghua Gate) that are far from the current location (which is of little help to driving), while the names of nearby major buildings are not displayed, causing inconvenience. In addition, the government or local self-governing body can manage and operate the major government offices and facilities included in the road name address in a manner suitable for the current road name address.

[0101] The road condition prompt section 152 is provided adjacent to each road name address prompt section 150, and displays whether the section of the corresponding road name address at the time of straight travel, left turn or right turn is "normal", "slow (slightly delayed)", or "congested" in characters, for example. The control section 30 receives the road traffic conditions in real time through the communication section 20 to display the congestion information. If the prompt is performed in this way, not only the congestion conditions of the road can be recognized, but also an auxiliary effect of further recognizing the road name address can be expected.

[0102] In addition, the present application, as shown in Figure 10 When the signal light in the specific direction is lit, the road information prompt section 15 can be emphasized in the same color as the signal light or a blinking mark can be provided to improve the visibility to the driver or the pedestrian according to the situation.

[0103] Although the preferred embodiments of the present application have been described above, it is known that the present application can be variously changed and modified, and the scope of the right of the present application can cover the same or equivalent areas as the claims to be described below.

Claims

1. A traffic signal system, characterized in that, Includes signal light units and control units; The signal light unit includes: Traffic lights consist of multiple LEDs that display signals about the movement of vehicles. A signal light support body is used to support the signal light, and A signal light auxiliary lighting unit is disposed in the edge area of ​​the signal light support body to output light of multiple colors; The control unit controls the LEDs to light up according to the signal control signal of the signal light, and the control unit controls the signal auxiliary lighting unit to output the same color as the signal light. LEDs installed on the upper or lower edge of the signal light support body are configured to illuminate and display designated indicator marks. The control unit stores control setting information, including the display time of the traffic light. When the traffic light is turned on, the indicator on the traffic light support body is illuminated according to the signal display time specified in the control setting information. When the green traffic light illuminates, the indicator markers, consisting of square or circular shapes arranged in a row, are all lit up. As the display time decreases, the control unit reduces the number of illuminated square or circular shapes. When the left turn signal light is on, the indicator is formed by a row of arrows with the left apex and all of them are lit. As the display time decreases, the control unit controls the number of arrows that are lit to decrease.

2. The traffic signal system according to claim 1, characterized in that, The traffic lights also include a right-turn traffic light. When the right turn signal light is on, the indicator is formed by a row of arrows with the right side as the apex and all of them are lit up, and the time decreases continuously. The control unit controls the number of arrows lit up to decrease.

3. The traffic signal system according to claim 2, characterized in that, When the control unit detects a pedestrian crossing or receives a signal from the traffic signal system's communication unit that another traffic light at the right-turn intersection has turned green, the control unit will not illuminate the right-turn traffic light and the LEDs of the traffic light auxiliary lighting unit.

4. The traffic signal system according to claim 1, characterized in that, A road information display section is also included on the upper or lower side of the traffic light auxiliary lighting section. The road information display unit includes a road name and address display unit and a road condition display unit.

5. The traffic signal system according to claim 4, characterized in that, The road name and address prompt section displays the road name for straight-ahead roads, road names for left-hand traffic, and road names for right-hand traffic, and the road names are road names in accordance with road traffic regulations, such as "main road," "road," or "street." 6. The traffic signal system according to claim 5, characterized in that, The road name and address prompt also displays buildings included in the road name and address section for straight, left-hand, or right-hand driving.

7. The traffic signal system according to claim 5, characterized in that, The road condition prompting unit is arranged adjacent to each of the road name and address prompting units, and displays in text whether the corresponding road name and address interval when going straight, turning left or turning right is in a "normal", "slightly delayed" or "congested" state. The control unit receives road traffic conditions in real time through the communication unit of the traffic signal system and displays congestion information.

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