KR102077113B1 - Traffic signal information service system based on cloud - Google Patents

Abstract

The present invention efficiently manages the operation information of traffic lights installed at intersections or other traffic lanes on a cloud basis, and efficiently provides information synchronized with the lighting cycle of the traffic lights to the vehicle navigation device or autonomous driving device and the pedestrian's smartphone. It provides a cloud-based traffic signal information providing system that can operate traffic signals and prevent vehicle safety accidents.
According to the present invention, the traffic light control terminal is installed in the vehicle passage and controls the flashing of traffic lights; Communicate with the traffic light control terminal to store and manage traffic signal operation information including the lighting state and lighting time of the traffic light in a management area, remotely control the traffic light control terminal, and the components from the traffic light control terminal. Traffic signal operation server for receiving and managing the status information including whether the failure; A vehicle terminal installed in a vehicle driving the vehicle passage and having at least display means for displaying a driving route; And a traffic signal information providing server configured to receive the traffic signal operation information from the traffic signal operation server in association with the traffic signal operation server, and to transmit the traffic signal operation information to the vehicle terminal along with the information related to the driving route. The traffic signal operation server includes: a traffic signal operation information synchronization module for communicating with the traffic signal information providing server to synchronize time of the traffic signal operation information; And a traffic signal display information transmission module for generating traffic signal display information to be displayed on the vehicle terminal and transmitting the traffic signal display information to the traffic signal information providing server together with the traffic signal operation information.
According to the present invention, the traffic signal operating server is synchronized with the traffic signal information providing server such as the navigation information management server and the autonomous driving information management server to synchronize the time of the traffic signal operation information to the traffic signal to the navigation device or autonomous driving device of the vehicle. By providing the display information, it is possible not only to efficiently operate the traffic signal, but also to effectively check the traffic signal from the actual traffic light and the in-vehicle device, thereby preventing a safety accident at an intersection.

Description

Cloud-based traffic signal information providing system {TRAFFIC SIGNAL INFORMATION SERVICE SYSTEM BASED ON CLOUD}

The present invention efficiently manages the operation information of traffic lights installed at intersections or other traffic passages on a cloud basis, and efficiently provides information synchronized with the lighting cycle of the traffic lights to a vehicle navigation device or autonomous driving device and a pedestrian's smartphone. It relates to a cloud-based traffic signal information providing system that can operate traffic signals and prevent vehicle safety accidents.

In general, traffic lights are installed at intersections, traffic lanes, etc. to express a straight, left turn, stop, and signal change of the vehicle. The traffic lights turn on the green, left turn, red, and yellow lights at predetermined intervals according to the traffic volume of the traffic lights.The vehicle driver can drive the vehicle according to the traffic lights to prevent accidents such as collisions between vehicles and pedestrian collisions. Can be.

Typically, a traffic light control terminal is installed near the traffic light, and the lighting cycle of the traffic light is controlled by a program installed in the traffic light control terminal. However, a traffic police officer is dispatched during a rush hour when the traffic volume in a specific direction is rapidly increasing, thereby eliminating traffic congestion in a specific direction by manually controlling the lighting of the traffic lights at the site. In addition, a traffic police officer is dispatched even when a traffic light cannot be turned on due to an accident such as a power failure or a disconnection to control the flow of the vehicle by hand signals.

Recently, a traffic signal remote control system such as Patent Registration No. 10-0435228 is introduced to control a traffic light control terminal from a remote controller or a control server, and collects and manages state information such as a failure of a traffic light.

On the other hand, in recent years, with the development and spread of vehicle peripheral technology, most vehicles are provided with a navigation device or an autonomous driving device. The driver drives while watching the route guidance information provided on the display screen. At this time, the driver may frequently enter an intersection without recognizing the state of the traffic light due to the forward attention.

Republic of Korea Patent No. 10-0435228

The present invention manages the operation information of the traffic light in the cloud server, and in connection with the navigation information management server or autonomous driving information management server, such as providing traffic signal operation information and traffic signal display information synchronized with the current time of the traffic signal to the traffic The purpose of the present invention is to provide a cloud-based traffic signal information providing system that can prevent the vehicle safety accident by allowing the driver to check the synchronized traffic signal in the vehicle terminal as well as operating the signal efficiently.

In addition, the present invention has another object to providing a traffic signal operation information on the smartphone of the pedestrian, so that the pedestrian can pass the crosswalk safely by learning the operating system of the traffic light.

In addition, the present invention by using the vehicle's side mirror to notify the rear vehicle and pedestrians the same signal as the traffic signal manifestation state, even when there is a large vehicle in front or when the traffic light is incapable of lighting due to power outages, etc. The traffic signal system of the pedestrian crossing and the pedestrian crossing is operated similarly to the normal time, so that the traffic flow can be maintained smoothly.

Cloud-based traffic signal information providing system according to an embodiment of the present invention, the traffic light control terminal is installed in the vehicle passage to control the flashing of traffic lights; Communicate with the traffic light control terminal to store and manage traffic signal operation information including the lighting state and lighting time of the traffic light in a management area, and to control the traffic light control terminal remotely, the component from the traffic light control terminal Traffic signal operation server for receiving and managing the status information including whether the failure; A vehicle terminal installed in a vehicle driving the vehicle passage and having at least display means for displaying a driving route; And a traffic signal information providing server configured to receive the traffic signal operation information from the traffic signal operation server in association with the traffic signal operation server, and to transmit the traffic signal operation information to the vehicle terminal along with the information related to the driving route. The traffic signal operation server includes: a traffic signal operation information synchronization module for communicating with the traffic signal information providing server to synchronize time of the traffic signal operation information; And a traffic signal display information transmission module for generating traffic signal display information for display on the vehicle terminal and transmitting the traffic signal display information to the traffic signal information providing server together with the traffic signal operation information.

In the cloud-based traffic signal information providing system according to another embodiment of the present invention, the traffic signal operation server, the traffic signal information providing server collects, stores and manages traffic volume information of the vehicle traffic path that the vehicle terminal passes through A traffic information collection module; And a traffic signal operating system change module for transmitting a change command of the traffic signal operating system to the traffic light control terminal based on the traffic volume information.

Cloud-based traffic signal information providing system according to another embodiment of the present invention, the vehicle terminal is a navigation device installed in a vehicle, the traffic signal information providing server navigation information for providing route guidance information to the navigation device It is a management server.

In a cloud-based traffic signal information providing system according to another embodiment of the present invention, the vehicle terminal is an autonomous driving device installed in a vehicle, and the traffic signal information providing server is associated with autonomous driving of the vehicle to the autonomous driving device. An autonomous driving information management server that provides route guidance information.

In the cloud-based traffic signal information providing system according to another embodiment of the present invention, the vehicle terminal overlays the traffic signal display information on the display of the route guidance information.

In the cloud-based traffic signal information providing system according to another embodiment of the present invention, the traffic signal display information includes a traffic light display of the same color as the traffic light.

Cloud-based traffic signal information providing system according to another embodiment of the present invention, the traffic signal display information includes a warning message display for displaying a warning message with the distance information to the traffic light when the traffic light is red do.

In the cloud-based traffic signal information providing system according to another embodiment of the present invention, the traffic signal display information may display a progress signal remaining time display indicating a remaining lighting time of a progress signal when the traffic light indicates green or left turn. Include.

Cloud-based traffic signal information providing system according to another embodiment of the present invention, a smartphone owned by a pedestrian traffic information guide app installed to provide traffic information; And a traffic information guide to receive the traffic signal operation information from the traffic signal operation server in connection with the traffic signal operation server, and to transmit the traffic signal operation information together with the traffic information through the traffic information guide app to the smartphone. App management server further includes, the traffic signal operation information includes a lighting state and lighting time of the pedestrian traffic lights installed on the crosswalk.

Cloud-based traffic signal information providing system according to another embodiment of the present invention, which is installed in the vehicle to receive the traffic signal operation information from the traffic signal operation server or the traffic signal information providing server to provide to a trailing vehicle Further comprising a vehicle traffic signal display device, the vehicle traffic signal display device, the vehicle signal display LED installed in the side mirror of the vehicle to direct the rear vehicle having the same color and the same lighting scheme as the traffic light; A vehicle traffic light drive module for driving the vehicle signal display LED; A communication module for communicating with the traffic signal operating server or the traffic signal information providing server; A traffic signal synchronization module configured to receive the traffic signal operation information and synchronize a lighting control cycle of the vehicle signal display LED with a lighting control cycle of the traffic light; And a controller configured to issue a lighting control command for the vehicle signal display LED to the vehicle traffic light driving module according to the output of the traffic signal synchronization module.

In a cloud-based traffic signal information providing system according to another embodiment of the present invention, the traffic signal operation information includes a lighting state and a lighting time of a pedestrian traffic light installed at a crosswalk, and the traffic signal display device for a vehicle includes: A pedestrian signal display LED installed at the rear of the side mirror of the vehicle and having the same color and the same lighting scheme as the pedestrian traffic light; And a pedestrian traffic light driving module for driving the pedestrian signal display LED by a command of the controller.

In the cloud-based traffic signal information providing system according to another embodiment of the present invention, the control unit receives all or part of the non-lighting state signals of the traffic lights from the traffic signal operation server or the traffic signal information providing server. The vehicle traffic light driving module and the pedestrian traffic light driving module are operated when receiving the non-lighting state signal.

According to the cloud-based traffic signal information providing system of the present invention, the traffic signal operation server in synchronization with the traffic signal information providing server, such as navigation information management server and autonomous driving information management server to synchronize the time of the traffic signal operation information of the vehicle By providing traffic signal display information to navigation devices and autonomous driving devices, it not only operates traffic signals efficiently, but also makes it possible to double check traffic signals from actual traffic lights and in-vehicle devices to prevent safety accidents at intersections. It can be effective.

In addition, according to the present invention, the traffic signal operation server in conjunction with the traffic information guidance app (APP) management server to synchronize the traffic signal operation information, by providing the synchronized traffic signal display information to the smartphone of the pedestrian, the pedestrian traffic It is effective to know the operating system of traffic lights so that you can pass the crosswalk safely.

According to the present invention, the cloud server provides traffic signal operation information to the vehicle traffic signal display device, and synchronizes the time in the vehicle traffic signal display device to the rear vehicle and the pedestrian through the side mirror, the same traffic as the actual signal system. By displaying the signal, even when there is a large vehicle in front, or when the traffic light is not lit due to a power failure, the traffic signal system of intersections and crosswalks can be operated similarly to normal time to keep the traffic flowing smoothly. It is effective.

1 is a block diagram illustrating a cloud-based traffic signal information providing system according to the present invention;
2 is a view showing a data flow on a cloud-based traffic signal information providing system according to the present invention;
3 is a view illustrating a warning message display while displaying route guidance information and traffic signal display information by overlaying the navigation device of a vehicle according to the present invention;
4 is a view illustrating the display of the remaining time display of the progress signal while displaying the road guidance information and traffic signal display information by overlaying the autonomous driving device of the vehicle in the present invention;
5 is a view showing a data flow between a cloud server and a vehicle traffic signal display device in the present invention, and
6 is a block diagram illustrating a configuration of a traffic signal display device for a vehicle in the present invention.

Hereinafter, with reference to the accompanying drawings will be described a specific embodiment according to the present invention. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The same reference numerals are used for parts having similar configurations and operations throughout the specification. And the drawings attached to the present invention is for convenience of description, the shape and relative measures may be exaggerated or omitted.

In describing the embodiments in detail, overlapping descriptions or descriptions of obvious technology in the art are omitted. In addition, in the following description, when a portion "includes" another component, it means that it can further include components other than the described components unless otherwise stated.

 In addition, the terms "~", "~", "~ module" described in the specification means a unit for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. Can be. In addition, when a part is electrically connected to another part, this includes not only the case where it is directly connected, but also the case where it is connected through the other structure in the middle.

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

1 is a block diagram illustrating a cloud-based traffic signal information providing system according to the present invention.

Referring to FIG. 1, the traffic signal information providing system of the present invention includes a traffic signal operation server 100, a navigation information management server 200 linked to a traffic signal operation server 100 through the Internet 910, and autonomous driving. Traffic signal information providing server, such as information management server 300, and traffic information guidance app (App) management server 400, and connected to the traffic signal operating server and / or traffic signal information providing server through the mobile network 920 The traffic light control terminal 500, the navigation device 600, the autonomous driving device 700, and the smartphone 800 are configured.

The configuration of each terminal will be described first.

Traffic light control terminal 500 is a device for controlling the flashing of the traffic light 510 is installed on the intersection or other vehicle traffic road as shown in FIG. As is commonly known, the traffic light control terminal 500 periodically turns on the traffic light 510 according to a program stored in an internal memory such as a read only memory (ROM). The traffic signal lighting control algorithm may be changed for each time zone. In addition, the traffic signal lighting control algorithm may be remotely changed by the traffic signal operating server 100, or the lighting of the traffic light may be directly controlled by a remote operation.

The navigation apparatus 600 may be mounted on the vehicles 610 and 710 traveling on the vehicle passage, or the autonomous driving apparatus 700 may be mounted. The navigation device 600 is a device that outputs route guidance information to a destination input by a user on a graphic screen, and receives and displays route guidance information reflecting real-time traffic conditions from a remote navigation information management server 200. . The autonomous driving device 700 is a driving device that allows a driver to go to his or her own destination even without manipulating a steering wheel, an accelerator pedal, a brake, and the like. Include. The autonomous driving apparatus 700 may avoid a obstacle recognized by the sensor by itself, and may include a means such as driving a constant speed by adjusting a distance from the front vehicle. The autonomous driving device 700 may receive the route guidance information from the remote autonomous driving information management server 300 to the destination and display it on the display device.

The smartphone 800 is a terminal owned by a pedestrian 810 passing a crosswalk, and in the present invention, the smartphone 800 refers to a terminal on which a traffic information guide app is installed. The smartphone 800 may receive traffic information from a remote traffic information guide app management server 400 and display it on a display screen.

The traffic signal operation server 100 communicates with the traffic light control terminal 500 to receive traffic signal operation information including a lighting state and a lighting time of the traffic light 510 in the management area, and receives the received traffic signal operation information. Store and manage in the traffic signal operation information DB (110). In addition, the traffic light control server 100 may control the traffic light control terminal 500 remotely. In addition, the traffic signal operation server 100 can not be turned on or off of each traffic light (eg, green light, red light, yellow light, left turn light, etc.) of the traffic light 510 from the traffic light control terminal 500. In addition, the control unit may receive and manage state information such as states of components in the traffic light control terminal.

Referring to FIG. 1, the traffic signal operation server 100 may include a traffic signal operation information synchronization module 130, a traffic signal indication information transmission module 140, a traffic volume information collection module 150, and a traffic signal operation system change. Module 160. The modules provided in the traffic signal operating server 100 may be software, algorithms, or program routines implemented by programming in the server.

The traffic signal operation information synchronization module 130 communicates with a traffic signal information providing server (such as a navigation information management server 200, an autonomous driving information management server 300, and a traffic information guide app management server 400, etc.). Synchronize the time of signal operation information with the time of information provided by the traffic signal information providing server. The traffic signal display information transmission module 140 generates traffic signal display information for display on a vehicle terminal (such as the navigation device 600 and the autonomous driving device 700), and provides the traffic signal information providing server together with the traffic signal operation information. To transmit.

The traffic volume information collecting module 150 collects traffic volume information from the traffic signal information providing server and stores and manages the traffic volume information in the traffic volume information DB 120. The traffic signal information providing server collects traffic situation information from vehicle terminals to generate traffic volume information to generate route guidance information reflecting real-time traffic conditions, and provides the generated traffic volume information to the traffic signal operation server 100. . The traffic signal operating system change module 160 transmits a change command of the traffic signal operating system to the traffic light control terminal 500 based on the collected traffic volume information. For example, when a straight vehicle in a specific direction increases rapidly at an intersection, the traffic light control terminal 500 is remotely detected by detecting the traffic volume information and increasing the straight signal in the corresponding direction when the detected value exceeds a predetermined value. Can be controlled.

2 is a diagram illustrating a data flow on a cloud-based traffic signal information providing system according to the present invention. Referring to the flow of data in the traffic signal information providing system of the present invention with reference to FIG.

The traffic signal operation server 100 controls the traffic light control terminal 500 remotely at all times (step 1). Here, the remote control may be understood as a concept including a case in which the traffic light control terminal 500 remotely monitors the lighting cycle of the traffic light by its own program. In addition, the traffic signal operation server 100 collects state information such as whether the traffic lights are not turned on or whether components are broken from the traffic light control terminal 500 (step 2).

The traffic signal operation information synchronization module 130 of the traffic signal operation server 100 communicates with the traffic signal information providing server to synchronize the time of the traffic signal operation information (step 3). By going through this synchronization process, the time is synchronized between the actual time of the traffic light 510 and the information provided by the traffic signal information providing server, so that the traffic signal is displayed on the vehicle terminals 600 and 700 or the smartphone 800. In this case, it is possible to prevent misrecognition of traffic signals due to time error. The traffic signal indication information transmission module 140 transmits the traffic signal indication information to the traffic signal information providing server together with the traffic signal operation information (step 4).

The traffic signal information providing server transmits time-synchronized traffic signal operation information and traffic signal indication information to a user terminal (such as a vehicle terminal and a smartphone) (step 5). For example, as described above, the navigation information management server 200 transmits the traffic signal display information along with the route guidance information to the navigation device 600 of the vehicle 610, and the driver transmits the traffic on the output screen of the route guidance information. The state of the traffic light 510 may be checked. As another example, the autonomous driving information management server 300 transmits the traffic signal display information together with the autonomous driving information to the autonomous driving device 700 of the vehicle 710, the driver is a traffic on the output screen to display the autonomous driving status The state of the traffic light 510 may be checked. As another example, the traffic information guide app management server 400 transmits the traffic signal display information along with the traffic information guide to the smartphone 800 of the pedestrian 810, the pedestrian 810 is his smartphone 800 The state of the traffic light 510 located on the walking path may be checked on the output screen.

Next, the traffic signal information providing server collects traffic volume information from the user terminal (step 6). For example, a traffic amount may be detected from an image photographed by a camera installed in a vehicle, and the detected traffic amount may be digitized and transmitted to a traffic signal information providing server. As another example, it may be determined whether the vehicle is congested from the position measurement information of the GPS device installed in the vehicle, and the traffic volume may be estimated and transmitted to the traffic signal information providing server.

The traffic volume information collecting module 150 of the traffic signal operating server 100 collects traffic volume information from the traffic signal information providing server (step 7). The traffic signal operating system change module 160 determines whether to change the traffic signal operating mode from the collected traffic volume information (step 8). For example, in the traffic volume information, it is determined whether an indicator indicating the congestion of the vehicle in a specific direction of the intersection exceeds a predetermined set value. If it is determined that the vehicle is congested in a specific direction and the flow of the vehicle is smooth in the intersecting direction, the traffic signal operating mode is changed by increasing a straight signal in the direction of the congestion (step 9).

FIG. 3 is a diagram illustrating an example of displaying a warning message display while overlaying and displaying route guidance information and traffic signal display information on a navigation device of a vehicle according to the present invention.

Referring to FIG. 3, the traffic signal operation server 100 communicates with the navigation information management server 200 to synchronize traffic signal operation information, and provides time-synchronized traffic signal indication information to the navigation information management server 200. do.

The navigation information management server 200 provides the traffic signal display information while providing route guidance information to the navigation device 600 installed in the vehicle 610.

In this case, the navigation device 600 outputs a navigation path guide screen 620 as illustrated in FIG. 3. Preferably, the navigation route guidance screen 620 overlays the traffic signal display information on the display of the route guidance information.

Referring to FIG. 3, the navigation route guidance screen 620 displays the route guidance display 622 of the vehicle 610 as usual. For example, the route guidance display 622 includes an identification mark indicating the driving direction of the vehicle on the vehicle passage and a linear graphic indicating the driving route. If the traffic light for the vehicle is present on the driving route, the traffic light display 624 represented by the traffic light graphic of the same structure and color as the actual traffic light 510 is displayed on the route guidance map as shown. The navigation device 600 displays the traffic light display 624 in association with the actual traffic light 510 using the traffic signal display information.

In this case, when the traffic light 510 displays a red color, the traffic signal display information may include a warning message display 626 displaying a warning phrase together with the distance information to the traffic light 510. On the route guidance screen of the navigation device 600, a warning message such as "Warning: 100M forward signal red" is displayed as shown. The warning message display 626 may be blinked to increase the driver's alert. In addition, a warning sound may be simultaneously output through a speaker provided in the navigation device 600.

4 is a view illustrating the display of the remaining time display of the progress signal while overlaying and displaying the route guidance information and the traffic signal display information on the autonomous driving device of the vehicle in the present invention.

Referring to FIG. 4, the traffic signal operation server 100 communicates with the autonomous driving information management server 300 to synchronize the traffic signal operation information and transmit the traffic signal indication information to the autonomous driving management server 300. Same as the embodiment. The autonomous driving information management server 300 provides the traffic signal display information together with the autonomous driving information to the autonomous driving apparatus 700 of the vehicle 710.

In this case, the autonomous driving device 700 outputs the autonomous driving route guide screen 720 as illustrated in FIG. 4. As described above with reference to FIG. 3, the autonomous driving route guidance screen 720 overlays and displays the traffic signal display information on the display of the route guidance information.

Referring to FIG. 4, the autonomous driving route guidance screen 720 displays the route guidance display 722 of the vehicle 710. The route guide display 722 includes an identification mark indicating the driving direction of the vehicle on the vehicle passage and a linear graphic indicating the driving route. In addition, as described above, the traffic light display 724 represented by the traffic light graphic having the same structure and color as the actual traffic light 510 is displayed on the route guidance map.

In this case, when the traffic light 510 displays a progress signal such as green or left turn, the traffic signal display information includes a progress signal remaining time display 726 indicating a remaining lighting time of the traffic light indicating the progress signal. On the route guidance screen of the autonomous driving device 700, a message such as "remaining time: 8 seconds" may be displayed as shown. Therefore, the driver can predict when the progress signal will go out through the remaining time display before entering the intersection, and prevent excessive entry of the intersection.

5 is a view illustrating a data flow between a cloud server and a vehicle traffic signal display device according to the present invention.

As shown, the traffic signal operation server 100 remotely controls the traffic light control terminal 500 and receives the status information and signal system impossible information from the traffic light control terminal 500. For example, information indicating that the traffic light 510 is in a non-lighting state is transmitted through whether the power supplied to the traffic light 510 is cut off or disconnected. As another example, an instrument type current transformer CT may be installed at each of the traffic light power lines of the traffic light 510 to receive information about non-lighting state of each of the traffic lights.

The traffic signal operation server 100 provides traffic signal operation information and traffic signal indication information to the traffic signal information providing server, and collects traffic volume information from the traffic signal information providing server. If the entire traffic light 510 or a part of the traffic light 510 (for example, only a red light indicating prohibition of entering a stop line is incapable of lighting) is incapable of lighting, the traffic signal operation information is displayed. Information that can not be lit can be loaded together.

The vehicle traffic signal display device 650 may be further installed in the vehicle 610. The vehicle traffic signal display device 650 is a device for displaying a traffic signal interlocked with a real traffic light 510 on a following vehicle, and receives traffic signal operation information from a traffic signal operation server 100 or a traffic signal information providing server. do.

FIG. 6 is a block diagram illustrating a configuration of a traffic signal display device for a vehicle in the present invention. Referring to FIG. 6, the configuration of the vehicle traffic signal display device and an operational relationship in the present invention will be described in detail.

Referring to FIG. 6, the vehicle traffic signal display device 650 includes a control unit 660, a communication module 662, a traffic signal synchronization module 664, a vehicle traffic light drive module 666, and a pedestrian traffic light drive module. 668, the vehicle signal display LED 680, and the pedestrian signal display LED 690 are comprised.

First, the vehicle signal display LED 680 is installed to direct the rear vehicle to the side mirror 670 of the vehicle 610 as shown in FIG. 6. In general, the side mirror 670 is for the driver to observe the rear side and has a structure in which the mirror unit 672 is installed to face the rear side. The vehicle signal display LED 680 is for expressing a traffic signal to the rear vehicle, and is installed to face the rear side so as to be adjacent to the outside of the mirror portion 672 to increase visibility in the rear vehicle.

The vehicle signal display LED 680 is composed of a plurality of LEDs having the same color and the same lighting scheme as the traffic light 510. For example, the vehicle signal display LED 680 has a red prohibition indicator 682, a yellow signal change indicator 684, and a left turn indicator 686 indicating a left arrow indication along the vertical direction. ) And a green straight light indicator 688 may be arranged.

The pedestrian signal display LED 690 is installed at the side rear side of the side mirror 670 of the vehicle 610, and is installed to face the side at the rear curved portion of the side mirror 670 so that pedestrians can easily see.

The pedestrian signal display LED 690 may be composed of two LEDs having the same color and the same lighting scheme as the actual pedestrian traffic light installed in the crosswalk. For example, the pedestrian signal display LED 690 may have a structure in which a red stop light 692 and a green crossing light 694 are disposed above. As shown in the figure, the stop light 692 may include a filter in a shape where a person is stopped to express the shape of a stopped person, and the crossing light 694 may include a filter in the shape of a person walking. The shape of the person crossing can be expressed.

The vehicle traffic light driving module 666 may be an LED driver circuit for driving the vehicle signal display LED 680, and the pedestrian traffic light driving module 668 may be an LED driver circuit for driving the pedestrian signal display LED 690. have.

The communication module 662 is a module for communicating with the traffic signal operating server 100 or the traffic signal information providing server. The communication module 662 is a module for wireless Internet access and may be configured as a module such as a wireless broadband (Wibro), a world interoperability for microwave access (Wimax), and a high speed downlink packet access (HSDPA). Alternatively, the communication module 662 may be a mobile communication module such as a code division multiple access (CDMA) module, a long term evolution (LET) module, or the like.

The traffic signal synchronization module 664 receives the traffic signal operation information and means for synchronizing the lighting control cycle of the vehicle signal display LED 680 and the pedestrian signal display LED 690 with the lighting control cycle of the traffic light 510. to be. According to this time synchronization, the actual traffic light 510 and the vehicle signal display LED 680 and the pedestrian signal display LED 690 installed in the side mirror 670 of the vehicle 610 are interlocked at the same cycle and lighting time. Can be displayed.

The controller 660 transmits a control command to the vehicle traffic light driving module 666 and the pedestrian traffic light driving module 668 according to the output of the traffic signal synchronization module 664. In addition, the controller 660 is a means for controlling the overall operation of the vehicle traffic signal display device 650, and may include a microprocessor, a read only memory (ROM), and an analog circuit configuration.

The controller 660 may intermittently control the vehicle signal display LED 680 and the pedestrian signal display LED 690 in association with the traffic light 510. If a large vehicle is present in front of a plurality of vehicles to go straight at an intersection, the driver may be in a situation where the driver cannot recognize the traffic light 510. The driver instinctively moves along the front vehicle, and if the front vehicle violates the signal, there is a risk that the following driver also violates the signal. According to the vehicle traffic signal display device 650 according to the present invention, even when the traffic light 510 is not visually recognized, there is an advantage that the current traffic signal can be recognized through the side mirror 670 of the front vehicle.

As another example, the controller 660 may receive an all or some non-lighting state signal of the traffic light 510 from the traffic signal operating server 100 or the traffic signal information providing server. The vehicle traffic light driving module 666 and the pedestrian traffic light driving module 668 may be operated only when the non-lighting state signal is received.

If the traffic light 510 is in a state in which all or some of the lights cannot be turned on, a vehicle passing through an intersection or a pedestrian using a crosswalk may be confused. However, if there are some vehicles equipped with the vehicle traffic signal display device 650 according to the present invention, the current traffic signal situation may be displayed to the trailing vehicle and the pedestrian in the same manner as the actual traffic signal operating system, and the intersection and the crosswalk The traffic signal system will be operated similarly to the normal time to keep the traffic flowing smoothly.

Various modifications are possible in the above-described invention without departing from the basic idea. That is, the above embodiments should all be interpreted as illustrative and not restrictive. Therefore, the protection scope of the present invention should be determined according to the appended claims rather than the above-described embodiments, and if the components defined in the appended claims are replaced by equivalents, they should be regarded as belonging to the protection scope of the present invention.

100: traffic signal operation server 110: traffic signal operation information DB
120: traffic volume information DB 130: traffic signal operation information synchronization module
140: traffic signal display information transmission module 150: traffic volume information collection module
160: traffic signal operating system change module 200: navigation information management server
300: autonomous driving information management server 400: traffic information guidance app management server
500: traffic light control terminal 510: traffic light
600: navigation device 610: vehicle
620: navigation route guidance screen 622: route guidance display
624: traffic light display 626: warning message display
650: vehicle traffic signal display device 660: control unit
662: communication module 664: traffic signal synchronization module
666: vehicle traffic light drive module 668: pedestrian traffic light drive module
670: side mirror 672: mirror portion
680: vehicle signal display LED 682: do not enter indicator
684: signal change indicator 686: left turn indicator
688: Straight light 690: LED for pedestrian signal display
692: stop light 694: crossing light
700: autonomous vehicle 710: vehicle
720: autonomous driving route guidance screen 722: route guidance display
724: traffic light display 726: progress signal remaining time display
800: smartphone 810: pedestrian
910: Internet 920: Mobile Network

Claims (12)

A traffic light control terminal installed in a vehicle passage and controlling a blinking of a traffic light;
Communicate with the traffic light control terminal to store and manage traffic signal operation information including the lighting state and lighting time of the traffic light in a management area, remotely control the traffic light control terminal, and the components from the traffic light control terminal. Traffic signal operation server for receiving and managing the status information including whether the failure;
A vehicle terminal installed in a vehicle driving the vehicle passage and having at least display means for displaying a driving route;
A traffic signal information providing server configured to receive the traffic signal operation information from the traffic signal operation server in association with the traffic signal operation server and to transmit the traffic signal operation information to the vehicle terminal together with information related to the driving route; And
A vehicle traffic signal display device installed in the vehicle and receiving the traffic signal operation information from the traffic signal operation server or the traffic signal information providing server and providing the traffic signal operation information to a following vehicle.
Including;
The traffic signal operating server,
A traffic signal operation information synchronization module for communicating with the traffic signal information providing server to synchronize time of the traffic signal operation information; And
Traffic signal display information transmission module for generating traffic signal display information to be displayed on the vehicle terminal and transmits the traffic signal display information to the traffic signal information providing server together with the traffic signal operation information.
Including;
The vehicle traffic signal display device,
A vehicle signal display LED installed in the side mirror of the vehicle to direct the rear vehicle and having the same color and the same lighting scheme as the traffic light;
A vehicle traffic light drive module for driving the vehicle signal display LED;
A communication module for communicating with the traffic signal operating server or the traffic signal information providing server;
A traffic signal synchronization module configured to receive the traffic signal operation information and synchronize a lighting control cycle of the vehicle signal display LED with a lighting control cycle of the traffic light; And
A control unit which issues a lighting control command for the vehicle signal display LED to the vehicle traffic light driving module according to the output of the traffic signal synchronization module;
Cloud-based traffic signal information providing system comprising a.
The method of claim 1,
The traffic signal operating server,
A traffic volume information collection module configured to collect, store, and manage traffic volume information of the vehicle traffic path that the vehicle terminal passes from the traffic signal information providing server; And
Traffic signal operating system change module for transmitting a command to change the traffic signal operating system to the traffic light control terminal based on the traffic volume information
Cloud-based traffic signal information providing system further comprising.
The method of claim 1,
The vehicle terminal is a navigation device installed in a vehicle,
The traffic signal information providing server is a cloud-based traffic signal information providing system, which is a navigation information management server that provides route guidance information to the navigation device.
The method of claim 1,
The vehicle terminal is an autonomous driving device installed in a vehicle,
The traffic signal information providing server is a cloud-based traffic signal information providing system, which is an autonomous driving information management server that provides route guidance information related to autonomous driving of a vehicle to the autonomous driving device.
The method according to claim 3 or 4,
The vehicle terminal is a cloud-based traffic signal information providing system for displaying the traffic signal display information by overlaying the display on the path guide information.
The method of claim 5,
The traffic signal display information is a cloud-based traffic signal information providing system comprising a traffic light display of the same color as the traffic light.
The method of claim 6,
The traffic signal display information cloud-based traffic signal information providing system comprising a warning message display for displaying a warning phrase along with the distance information to the traffic light when the traffic light is red.
The method of claim 6,
The traffic signal display information cloud-based traffic signal information providing system including a progress signal remaining time display for displaying the remaining lighting time of the progress signal when the traffic light indicates green or left turn.
The method of claim 1,
Smartphone owned by a pedestrian and the traffic information app installed to provide traffic information smartphone; And
Traffic information guide app for receiving the traffic signal operation information from the traffic signal operation server in connection with the traffic signal operation server, and transmits the traffic signal operation information with the traffic information through the traffic information guide app to the smartphone Management server
More,
The traffic signal operation information is a cloud-based traffic signal information providing system including the lighting state and the lighting time of the pedestrian traffic lights installed on the crosswalk.
delete The method of claim 1,
The traffic signal operation information includes the lighting state and lighting time of the pedestrian traffic light installed in the crosswalk,
The traffic signal display device for a vehicle,
A pedestrian signal display LED installed on the side mirror side rear of the vehicle and having the same color and the same lighting scheme as the pedestrian traffic light; And
Pedestrian traffic light drive module for driving the pedestrian signal display LED by the command of the controller
Cloud-based traffic signal information providing system further comprising.
The method of claim 11,
The control unit receives all or part of the non-lighting status signals of the traffic lights from the traffic signal operating server or the traffic signal information providing server, and when receiving the non-lighting status signals, the vehicle traffic light driving module and the pedestrian traffic light. Cloud-based traffic signal information providing system for operating the drive module.

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