KR101034364B1 - Traffic Information Generation System and Method in Intersection Considering Entry and Exit - Google Patents

Abstract

The present invention relates to a system and method for generating traffic information at an intersection considering entry and exit. In the traffic information generation system at an intersection, a traffic information server is collected by collecting an average driving speed for each entry and exit link at the intersection. A first traffic information collecting unit for transmitting to the traffic information server and collecting at least one of signal waiting time or congestion at the intersection and transmitting the information to the traffic information server; And a traffic information server for receiving traffic information transmitted from a second traffic information collecting unit, wherein the traffic information server calculates traffic information transmitted from the first and second traffic information collecting units and enters the intersection. The third traffic information in consideration of the advancing direction is calculated.

By using the traffic information generation system and method at the intersection considering the entry and exit as described above, it is possible to avoid the congestion or congestion road and to select the bypass road with the real-time accurate traffic information according to the left turn, the U-turn or the right turn at the intersection.

Traffic Information, Intersection, Entry Link, Entry Link, Traffic Signal Controller

Description

Traffic information generation system and method for intersection road considering enterance and exit}

The present invention relates to a system and method for generating traffic information at an intersection considering entry and exit. In particular, the present invention combines the traffic information of the entry and exit links at the intersection and the traffic information according to the vehicle movement situation at the intersection. To generate traffic information close to the.

In general, the navigation system is attracting attention as one of the solutions to traffic congestion. The navigation system receives a navigation message transmitted by a Global Positioning System (GPS) satellite to a GPS receiver, installs a sensor such as a gyroscope and a speed sensor to detect a driving state of the mobile body by installing a sensor such as a gyroscope and a speed sensor. The current position of the moving object is determined by Dead-Reckoning using the navigation message received by the sensor and the driving state detection signal of the moving object detected by the sensors, and the display unit is matched with the map data by determining the current position of the moving object. On the screen, and recently collected and provided traffic information from the server for providing traffic information, and the broadcast station collects traffic information and configures it to meet the TPEG (Transport Protocol Experts Group) standard, and DMB (Digital Multimedia) Broadcast) A technology for broadcasting through a transmission standard has been disclosed.

In addition, such an example is disclosed in Korean Patent Laid-Open Publication No. 2006-0074171 (July 03, 2006).

That is, in the above document, as shown in FIG. 1, when it is assumed that traffic information is stored in a memory, one node 500 is selected, and the traffic information 502 of the entry link at the node 500 is selected. ) Compares traffic information 504 of the exit link with the traffic information 502 and 504 if the traffic information 502 is the same, and the same traffic information 508 as the traffic information 504 of the entry link of the node 506. A technique for merging is presented.

The technique disclosed in Korean Patent Laid-Open Publication No. 2006-0074171 described above merely displays the merging speeds of the entrance and exit links at an intersection, etc., but merely displays the merging of the vehicle at the intersection of the other entrance and exit links at the intersection of the vehicle. There was a problem in that the accurate traffic information could not be guided because the speed and the degree of congestion were not considered.

An object of the present invention is to solve the problems described above, and to display the congestion degree according to the current speed of the vehicle at the intersection and the like to allow the driver to accurately understand the actual traffic situation and to consider the entry and exit to select the bypass road. To provide a system and method for generating traffic information at an intersection.

According to the traffic information generation system and method considering the entry and exit according to the present invention, by reflecting the left turn, right turn, straight ahead or U-turn at the intersection, etc. by calculating and providing more accurate traffic information to the actual driving situation The effect of avoiding congestion or congestion and choosing a bypass is obtained.

In order to achieve the above object, a traffic information generation system at an intersection considering an entry and exit according to the present invention is a traffic information generation system at an intersection. A first traffic information collecting unit transmitting to an information server, a second traffic information collecting unit collecting at least one information among signal waiting time or congestion at the intersection and transmitting the information to the traffic information server;

And a traffic information server for receiving traffic information transmitted from the first traffic information collecting unit and the second traffic information collecting unit, wherein the traffic information server is traffic information transmitted from the first and second traffic information collecting units. It is characterized in that to calculate the third traffic information in consideration of the entry and exit direction at the intersection.

In addition, the traffic information generation method at the intersection considering the entry and exit in accordance with the present invention in order to achieve the above object, in the traffic information generation method at the intersection, the first traffic which is the average running speed of the entry and exit link of the intersection Information, second traffic information at intersections generated according to the entry and exit directions of the vehicle, and third traffic information generated according to the entry and exit directions of the vehicle by calculating the first traffic information and the second traffic information. It is characterized by calculating.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention, through which the object and features of the present invention will be more clearly.

2 is a block diagram of a system for generating traffic information at an intersection according to the present invention, and FIG. 3 is a view showing traffic information at an intersection according to the present invention.

As shown in Figure 2, the traffic information generation system at the intersection according to an embodiment of the present invention is largely the first traffic information collecting unit 110, the second traffic information collecting unit 120, traffic information server ( 130) and a navigation terminal 140.

The first traffic information collecting unit 110 includes a traffic sensor (not shown) and a controller (not shown).

The traffic sensor transmits the speed measurement information due to the movement of the vehicle to the traffic information server 130 by a sensor capable of measuring the speed of the vehicle, such as a roof coil and a speed detection camera.

The second traffic information collecting unit 120 may be integrated with a traffic information collecting camera and a traffic signal controller (not shown), or the camera may be separated from the traffic signal controller.

The traffic information collection camera installed at the intersection captures the traffic flow of the acquired vehicle as a video and transmits it to the traffic information server 130, and the traffic signal controller detects a signal waiting time between turn-on and turn-off of a traffic light. The detected signal is transmitted to the traffic information server 130.

The traffic information server 130 may consider the first traffic information of the first traffic collecting unit 110 and the second traffic information of the second traffic collecting unit 120 in consideration of the entry and exit directions of the vehicle at the intersection. Alternatively, the signal waiting time may be calculated to obtain third traffic information (time required for entering and leaving the intersection).

The operation is obtained by the average running time of the entry link R50 + the average running time of the one of the plurality of exit links R60, R70, and R80 + the signal waiting time.

The congestion degree, which is the second traffic information, includes a traffic jam time by an image such as a video.

Referring to FIG. 3, the traffic information server 130 calculates an average driving speed of a vehicle of an entry link R50 and a plurality of exit links R60, R70, and R80 at an intersection and provides traffic information of the first traffic collection unit 110. The second traffic collection unit calculates the time information according to the entry and exit of the intersection (O) near the intersection, which is the point where the entry link (R50) and the plurality of exit links (R60, R70, R80) of the intersection meet. Calculate using the traffic information of 120.

 The first traffic information collecting unit 110 and the second traffic information collecting unit 120 are located near the intersection, and are provided with a wireless communication unit (not shown) to enable mutual communication with the traffic information server 130.

In addition, the second traffic information collecting unit 120 collects the U-turn information of the road adjacent to the intersection using the traffic signal controller (not shown).

As shown in FIG. 3, traffic information at an intersection according to an exemplary embodiment of the present invention is displayed.

Here, the intersection is formed of two or more branched roads for one access road, and there are a roundabout, a crossroad, and a three-way street.

When the current position P of the host vehicle is located within a predetermined distance or radius from the center O of the intersection, the traffic information in real time of the intersection is displayed as an arrow-shaped graphic and / or text.

In addition, arrows (R50, R60, R70, R80) indicate the direction of the left turn (R60), right turn (R80) or straight (R70) at the intersection, the thickness and color of the average driving according to each direction Displayed according to the speed.

Here, R50 of the arrow is the entry link indicating the direction in which the host vehicle P enters, and the exit link is R60, R70 and R80 of the arrow.

The predetermined distance is adjustable by the manufacturer and / or the user within 1 km or less than 5 km, etc. Also, the start of the entry link (R50) and the end of the plurality of exit links (R60, R70, R80) is the said of the intersection Within a certain distance or radius from the center (O).

 In addition to the average running speed for the access road (R10) and at least one of the access roads (R20, R30, R40) is displayed, the degree of congestion corresponding to the average driving speed is also smoothly divided into congestion or congestion.

Preferably it can be set to smooth (30km / h or more), congestion (10km / h ~ 29km / h), congestion (9km / h) or less, but can be added or subtracted in consideration of road conditions.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

1 is a view showing traffic information according to a conventional method of displaying traffic information;

2 is a block diagram of a system for generating traffic information at an intersection according to the present invention;

3 is a view showing traffic information at an intersection according to the present invention;

Claims (9)

In the traffic information generation system at the intersection, A first traffic information collection unit for transmitting the first traffic information generated by collecting an average driving speed for each entry link and exit link at the intersection, to a traffic information server; A second traffic information collection unit configured to transmit second traffic information generated by collecting at least one information of signal waiting time or congestion degree at the intersection to the traffic information server; And the traffic information server receiving the first traffic information and the second traffic information transmitted from the first traffic information collecting unit and the second traffic information collecting unit. The traffic information server calculates the first traffic information and the second traffic information transmitted from the first traffic information collecting unit and the second traffic information collecting unit, and includes a third traffic considering the entry and exit directions at the intersection. Yield information, The signal waiting time is transmitted from an intersection traffic signal controller, and the congestion degree is calculated based on an image obtained from a traffic information collecting camera. The method of claim 1, The second traffic information collection unit further comprises the U-turn information of the road adjacent to the intersection, traffic information generation system at the intersection considering entry and exit. delete delete The method of claim 1, The second traffic information is traffic information generation system at the intersection considering entry and exit, characterized in that the time information. In the traffic information generation method at the intersection, First traffic information which is an average driving speed of an entry link and an exit link of the intersection; Second traffic information at intersections generated according to the entry and exit directions of the vehicle; and Third traffic information generated according to the entry and exit directions of the vehicle by calculating the first traffic information and the second traffic information; Calculate the The second traffic information is calculated from at least one of signal waiting time or congestion degree according to the entry and exit of the vehicle, and the signal waiting time is transmitted from the traffic signal controller at the intersection and the congestion degree is obtained from the traffic information collecting camera. Traffic information generation method at the intersection considering entry and exit characterized in that it is calculated based on. delete The method of claim 6, And the second traffic information further comprises U-turn information of a road adjacent to the intersection. The method according to any one of claims 6 to 8, The second traffic information is time information generating traffic information generation method at the intersection considering entry and exit.

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