KR20040083203A - Apparatus and method of route researching reflecting traffic burst condition - Google Patents

Abstract

PURPOSE: An apparatus and a method for researching a route reflecting on a traffic burst condition are provided to give the convenience to the driver by supplying the information corresponding to the traffic situation. CONSTITUTION: An apparatus for researching a route reflecting on a traffic burst condition includes a mobile terminal(210), a traffic information supplying server(220). The mobile terminal(210) mounted on the vehicle receives the traffic information through a wireless communication network. And, the traffic information supplying server(220) supplies the path information requested from the mobile terminal(210) and supplies the new path generated against the traffic burst condition in real time to the mobile terminal(210).

Description

Apparatus and method of route researching reflecting traffic burst condition}

The present invention relates to an apparatus and method for rescanning a route in a traffic information providing service, and in particular, after providing route information to a vehicle, the route is re-searched by reflecting a traffic accident that is changed in real time until the vehicle arrives at a destination. The present invention relates to an apparatus and a method for re-navigating a route reflecting a traffic accident.

Currently, the road guidance service through the wireless communication network generates the path guidance route information for the first time and provides it to the terminal mounted on the vehicle, and the driver of the vehicle goes to the destination using the route information.

1 is a flowchart illustrating a conventional traffic information guide method.

Referring to FIG. 1, by using a terminal mounted on a vehicle, a driver accesses a traffic information providing server and requests a road guidance service (S101), and transmits departure information to a traffic information providing server (S102). In this case, the starting point information is automatically transmitted to the traffic information providing server when the terminal has a GPS (Global Positioning System) function, and if the terminal does not have a GPS function, the driver directly inputs the starting point Send to the traffic information server.

Then, the driver inputs the destination information to go to the terminal, and transmits the destination information to the traffic information providing server (S103), and the traffic information providing server receives the starting point and destination information of the driver and the traffic information updated in real time. The optimal route is searched for (S104), and the searched route information is transmitted to the terminal and provided to the driver (S105).

However, since the road guidance service method provides the driver with route information reflecting the traffic information at the time of requesting the service, there is a problem in that the driver cannot cope with a traffic accident that may occur while driving to the destination. .

At this time, a traffic accident refers to a situation in which a traffic situation suddenly changes, such as a traffic jam or a traffic control caused by a traffic accident or sudden weather change, and such a traffic accident occurs in a conventional technology that initially provides only route information. In this case, there is a problem that the driver must recognize the request and request the road guidance service from the beginning.

In order to solve the above problems, the present invention is to provide a new route properly by re-navigating the route provided in the road guidance service in response to a traffic situation that is changed in real time and a sudden traffic accident that occurs suddenly.

1 is a flowchart illustrating a conventional traffic information guide method.

2 is a block diagram illustrating a structure of a route rescanning apparatus reflecting a traffic accident according to a first embodiment of the present invention.

3 is a flowchart illustrating an operation of the apparatus for rerouting a route reflecting the traffic accident situation shown in FIG.

4 is a block diagram illustrating a structure of a route rescanning apparatus reflecting a traffic accident situation according to a second embodiment of the present invention.

FIG. 5 is a flowchart illustrating an operation of a route rescanning apparatus reflecting the traffic accident situation shown in FIG. 4 of the present invention.

FIG. 6 is a block diagram illustrating a structure of a route rescanning apparatus reflecting a traffic accident according to a third exemplary embodiment of the present invention.

7 is a block diagram illustrating a structure of a route rescanning apparatus reflecting a traffic accident according to a fourth exemplary embodiment of the present invention.

The route re-search apparatus reflecting traffic accidents according to the characteristics of the present invention,

A vehicle terminal mounted on a vehicle and receiving traffic information through a wireless communication network; It includes a traffic information providing server that provides the route information requested by the vehicle terminal, and provides the vehicle terminal with a new route for a sudden situation generated in real time.

At this time, the vehicle terminal, the transmission unit for transmitting data through the wireless communication network; A receiving unit for receiving data through the wireless communication network; A position coordinate receiver having a Global Positioning System (GPS) function for receiving position coordinates of a vehicle equipped with the vehicle terminal; A map matching unit performing map matching using the current position coordinates transmitted from the position coordinate receiving unit and matching the current position with the route data received from the traffic information providing server; And a route guide unit for guiding a route to the vehicle driver based on the data matched by the map matching unit.

The vehicle terminal may further include a route section search unit that determines whether the incident section has passed by using the accident section information included in the accident situation occurrence notification message provided from the traffic information providing server.

The traffic information providing server, a traffic information collecting unit for collecting a variety of traffic information through a wired or wireless; An outbreak section information extracting unit analyzing the traffic information collected by the traffic information collecting unit to determine the occurrence of the outbreak and extracting section information in which the outbreak occurred; A route generation unit for retrieving and generating route information using starting and destination information transmitted by the vehicle terminal according to the traffic information provision request requested by the vehicle terminal; A route search unit for searching for a vehicle terminal providing route information including a corresponding break section based on the break section information extracted by the break section information extracting unit; An information receiving unit for receiving a traffic information providing request message and data received from the vehicle terminal; And an information transmitter for transmitting data to provide traffic information to the vehicle terminal.

In addition, the route re-search method reflecting the traffic accident according to another feature of the present invention,

Re-search for a route reflecting a traffic accident in a traffic information providing system including a vehicle terminal mounted on a vehicle, the vehicle terminal having a wireless communication function and a route guidance function, and a traffic information server providing traffic information to the vehicle terminal through a wireless communication network In the providing method, (a) the traffic information providing server receives a traffic information provision request message from the vehicle terminal, and searches for a route using the departure and destination information included in the corresponding route information request message, the vehicle terminal Transmitting to; (b) analyzing the traffic information collected in real time by the traffic information providing server to determine whether an accident occurs, including a vehicle congestion, an accident, and a road loss; (c) in the event that an accident occurs, the traffic information providing server extracts a corresponding section and searches for a vehicle terminal providing route information including the extracted section; (d) transmitting a message notifying the occurrence of an accident situation to the vehicle terminal providing the route information including the corresponding section by the traffic information providing server, and receiving the location information of the current vehicle terminal from the vehicle terminal; step; (e) determining, by the traffic information providing server, whether the corresponding vehicle terminal has passed the accidental section using the current location information received from the vehicle terminal; And (f) if the vehicle terminal does not pass through the accidental section as a result of the determination, the traffic information providing server re-searches a route to a destination by using the current location information received from the vehicle terminal and returns to the vehicle terminal. Transmitting.

In addition, the route re-search method reflecting the traffic accident according to another feature of the present invention,

Re-search for a route reflecting a traffic accident in a traffic information providing system including a vehicle terminal mounted on a vehicle, the vehicle terminal having a wireless communication function and a route guidance function, and a traffic information server providing traffic information to the vehicle terminal through a wireless communication network In the providing method, (a) the traffic information providing server receives a traffic information provision request message from the vehicle terminal, and searches for a route using the departure and destination information included in the corresponding route information request message, the vehicle terminal Transmitting to; (b) analyzing the traffic information collected in real time by the traffic information providing server to determine whether an accident occurs, including a vehicle congestion, an accident, and a road loss; (c) in the event that an accident occurs, the traffic information providing server extracts a corresponding section and searches for a vehicle terminal providing route information including the extracted section; (d) transmitting, by the traffic information providing server, a notification message of occurrence of a sudden situation including sudden section information to the vehicle terminal providing the route information including the corresponding section; (e) determining whether the vehicle terminal has passed the corresponding accident section by determining the current location according to the accident occurrence notification message and transmitting the result to the traffic information providing server; And (f) if the traffic information providing server receives the result from the vehicle terminal that does not pass through the accidental section, rescans the route to the destination using the current location information received from the vehicle terminal and transmits the result to the vehicle terminal. Steps.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

2 is a block diagram illustrating a structure of a route rescanning apparatus reflecting a traffic accident according to a first embodiment of the present invention.

Referring to FIG. 2, the apparatus for rerouting a route according to the first embodiment of the present invention includes a terminal 210 connected through a wireless communication network 200 and a traffic information providing server 220.

The terminal 210 is a device having a wireless communication function mounted in a vehicle and includes a route guide 211, a map matching unit 212, a position coordinate receiver 213, a receiver 214, and a transmitter 215. .

The traffic information providing server 220 includes a traffic information collecting unit 221, an unexpected section information extracting unit 222, a path searching unit 223, a path generating unit 224, an information receiving unit 225, and an information transmitting unit 226. It includes.

The transmitter 215 of the terminal 210 transmits a route information request message and a departure and destination information according to a driver's request to the traffic information providing server 220, and the receiver 214 transmits the traffic information providing server 220. ), Route information, a sudden notification message, and the like are received.

The position coordinate receiving unit 213 receives the position coordinates from the GPS satellites by the GPS function in the terminal 210, and the map matching unit 212 calculates the coordinates received by the position coordinate receiving unit 213 to perform map matching. As part of the execution, the map matching is performed based on the downloaded data according to the changed position as the vehicle moves.

In this case, the downloaded data refers to route data downloaded by the receiver 214 from the traffic information providing server 220.

The route guide unit 211 guides the route with the data received from the traffic information providing server 220. The route guide unit 211 stores information on an arrow or other road guide display for displaying a route, and displays the information through the screen display device. Provide the driver with route information.

The traffic information collecting unit 221 of the traffic information providing server 220 collects traffic information from a closed circuit television (CCTV) or a traffic information providing vehicle installed at a traffic point. Gather information about accidents.

The accident section information extracting unit 222 is configured to generate information about the accident section, such as traffic congestion or traffic control due to a traffic accident or a disaster that exceeds an average driving time, based on the information collected by the traffic information collecting unit 221. Extract.

The path search unit 223 determines whether the abrupt section is included in the path already transmitted to the terminal 210 by using the abrupt section information extracted by the abrupt section information extractor 222, and includes the corresponding section. It is determined whether the terminal has passed the breakout section.

In this case, whether the terminal has passed the breakout section, the route search unit 223 receives the current location information from the terminal 210, compares the received location information with the breakout section, and determines whether the terminal passes.

In addition, the terminal 210 receives the accidental section information from the accidental section information extraction unit 222 and compares it with its current location to determine whether it passes, and transmits the result to the traffic information providing server 220. have.

The route generator 224 generates an optimal route for the origin and destination requested by the terminal 210, and the information receiver 225 receives a message requested by the terminal 210, origin and destination information, and the like. The transmitter 226 transmits route information from the traffic information providing server 220 to the terminal 210.

The terminal 210 having the above structure receives the route information from the traffic information providing server 220 as follows.

3 is a flowchart illustrating an operation of the apparatus for rerouting a route reflecting the traffic accident situation shown in FIG.

Referring to FIG. 3, the traffic information collecting unit 221 of the traffic information providing server 220 collects traffic information in real time (S301) and has the latest traffic information.

Then, when the terminal 210 requests the road guidance service, and transmits the departure and destination information to the traffic information providing server 220 (S302), the information receiving unit 225 of the traffic information providing server 220 is the departure and Receiving the destination information, the route generation unit 224 searches for the optimal route using the received source and destination information (S303), and transmits the optimum route to the terminal 210 through the information transmitter 226 (S304). ).

The receiving unit 214 of the terminal 210 receives the route information transmitted by the information transmitting unit 226 of the traffic information providing server 220, and the route guide unit 211 provides the received route information to the driver.

In addition, the accident section information extraction unit 222 of the traffic information providing server 220 determines whether a sudden situation has occurred in the traffic information updated in real time (S305), and if a sudden situation occurs, the route search unit 223 After searching for the terminal 210 that provided the route information including the section in which the accident occurred (S306), the terminal 210 informs that the accident section has occurred (S307).

In step S307, the terminal 210 having received the occurrence of the accidental section receives the current location information from the position coordinate receiving unit 213 and transmits it back to the traffic information providing server 220 (S308).

In step S308, the information receiving unit 225 of the traffic information providing server 220 receives the current location information and transmits it to the route search unit 223.

In addition, the path search unit 223 compares the received current location information with the accidental section information extracted by the accident section information extracting unit 222 to determine whether the vehicle equipped with the corresponding terminal 210 has passed through the section. It is determined (S309).

As a result of the determination in step S309, if the vehicle does not pass through the unexpected section, the route generation unit 224 re-searches a new route to the destination of the vehicle using the current location information (S310) and provides the terminal to the terminal. (S311). To this end, the traffic information providing server 220 should store the route information provided to the terminal 210 and the destination information of the route information until the vehicle arrives at the destination.

The operation from step S305 to step S311 is continued until the vehicle arrives at the destination, so that it can cope with a sudden situation that is changed from time to time.

In the first embodiment described above, the traffic information providing server 220 determines whether the vehicle passes through the accidental section and transmits the re-discovered route.

When a sudden section is generated by a method different from the above method, the terminal 210 of the vehicle may determine whether the unexpected section passes.

4 is a block diagram illustrating a structure of a route rescanning apparatus reflecting a traffic accident according to a second embodiment of the present invention.

Referring to FIG. 4, the terminal 410 mounted on the vehicle, the wireless communication network 200, and the traffic information providing server 220 have a structure similar to that of FIG. 2.

In addition, the traffic information providing server 220 has a structure as shown in FIG. 2 and performs the same operation. However, it does not determine whether the vehicle has passed the breakout section.

Therefore, the terminal 410 plays a role of determining whether the vehicle has passed through the accidental section, the terminal 410 has a similar structure as shown in FIG.

That is, as shown in FIG. 4, the terminal 410 includes a route guider 411, a map matcher 412, a position coordinate receiver 413, a route section searcher 414, a receiver 415, and a transmitter ( 416).

Each block performs the function as described with reference to FIG. 2, and the route section search unit 414 receives the occurrence of an accident from the traffic information providing server 220, and determines whether the individual passes through the accident section according to the corresponding accident section information. It determines whether or not, if it does not pass through the sudden section, and requests a new route to the traffic information providing server 220.

As described above, the method for rescanning the path by determining whether the terminal 410 passes through the abrupt section is as follows.

FIG. 5 is a flowchart illustrating an operation of a route rescanning apparatus reflecting the traffic accident situation shown in FIG. 4 of the present invention.

Referring to FIG. 5, the traffic information collecting unit 221 of the traffic information providing server 220 collects traffic information in real time (S501), and the information receiving unit 225 requests a road guidance service from the terminal 410. A message is received (S502).

The road guidance service request message received by the information receiving unit 225 includes the starting and destination information of the vehicle, and the route generation unit 224 of the traffic information providing server 220 receives the starting and destination information from the information receiving unit. Received from 225, the best route is searched for (S503).

In addition, the information transmitting unit 226 of the traffic information providing server 220 transmits the optimum route information searched by the route generating unit 224 to the terminal 410 (S504), and the sudden section information extracting unit 222 It checks in real time whether a sudden situation occurs (S505).

When the sudden situation occurs in step S505, the sudden section information extracting unit 222 extracts the sudden section information in which the sudden situation occurs, and the path search unit 223 provides a terminal that provided the route information including the corresponding sudden section. Search (S506), and sends a message of the occurrence of accidents including the information on the interval section to the terminal (S507).

Then, the route section search unit 414 of the terminal 410 receives the current position information from the position coordinate receiving unit 413, and the outbreak section included in the received current position information and the unexpected situation occurrence message received in step S507. Compare the information to determine whether the passage has passed (S508), and if the vehicle does not pass through the accidental section, the transmitter 416 transmits a route re-request message including the current location information to the traffic information providing server 220. (S509).

The information receiving unit 225 of the traffic information providing server 220 receiving the route re-request message in step S509 transfers the route re-request message to the route generating unit 224, and the route generating unit 224 re-routes the route. The path to the destination is re-searched using the location information of the current terminal 410 included in the request message (S510) and transmitted to the terminal 410 (S511).

At this time, the route re-search uses the destination information included in the route information provided by the route generator 224 to the terminal 410 in step S504, and the new current location information received from the terminal 410 in step S509. Search for the best route.

The process from step S505 to step S511 is repeated every time a sudden situation occurs until the terminal 410 arrives at the destination, so that the sudden situation can be coped with an optimal path.

In addition, having the same structure as the first embodiment and the second embodiment of the present invention, and additionally configured a map DB in the terminal (210, 410), if the route data search through the wireless communication network is impossible, the terminal (210, In 410, a function for enabling a route search by itself may be added.

6 is a block diagram illustrating a structure of a route rescanning apparatus reflecting a traffic accident according to a third embodiment of the present invention.

Referring to FIG. 6, in a structure including the terminal 610, the wireless communication network 200, and the traffic information providing server 220, the terminal 610 and the traffic information providing server 220 may be configured as the second in FIG. 4. It has the same structure as the embodiment.

In addition, in FIG. 6, the terminal 610 according to the third embodiment of the present invention further includes a map DB 617, and when it is difficult to communicate with the traffic information providing server 220 through the wireless communication network 200. The map DB 617 in the inside enables self-route searching.

In addition, the path rescanning method reflecting the unexpected situation is performed as described above with reference to FIG. 3.

7 is a block diagram illustrating a structure of a route rescanning apparatus reflecting a traffic accident according to a fourth exemplary embodiment of the present invention.

Referring to FIG. 7, the terminal 710, the wireless communication network 200, and the traffic information providing server 220 have the same structure as described with reference to FIG. 4.

In addition, the terminal 710 according to the fourth embodiment of the present invention shown in FIG. 7 further includes a map DB 717 and a route generation / route section search unit 714, and includes a route section for searching for an abrupt section. The search unit enables its own path search.

And the operation sequence of the fourth embodiment is performed in the same manner as the operation sequence in FIG.

In addition, the route generation unit 614 or the route generation / route section search unit 714 includes route data by itself, without separately configuring the map DB in the third and fourth embodiments. And may be enabled.

As described above, the apparatus and method for rescanning a route reflecting a traffic accident according to the present invention does not end in providing a route in a service for providing traffic information to a terminal mounted on a vehicle, but in real time. As a result, it is possible to update and transmit a new route that reflects a sudden situation such as a congestion section, a control section, or an accident section, thereby providing driver information by providing information corresponding to traffic conditions.

Claims (8)

A vehicle terminal mounted on a vehicle and receiving traffic information through a wireless communication network; A traffic information providing server providing route information requested by the vehicle terminal and providing a new route to the vehicle terminal for a sudden situation generated in real time. Re-routing device that reflects a traffic accident including a. The method of claim 1, The vehicle terminal, A transmitter for transmitting data through the wireless communication network; A receiving unit for receiving data through the wireless communication network; A position coordinate receiver having a Global Positioning System (GPS) function for receiving position coordinates of a vehicle equipped with the vehicle terminal; A map matching unit performing map matching using the current location coordinates transmitted from the location coordinate receiving unit and matching the current location with the route data received from the traffic information providing server; And Route guidance unit for guiding a route to the vehicle driver based on the data matched by the map matching unit Re-routing device that reflects a traffic accident including a. The method of claim 2, And the route guide unit includes a screen display device for providing route information to the vehicle driver and data for guiding the screen display device with an arrow, a text, or a voice. The method of claim 2, The vehicle terminal, And a route section search unit for determining whether the incident section has passed through the accident section information included in the accident situation occurrence notification message provided from the traffic information providing server. The method of claim 2, The vehicle terminal, When communication is impossible through the traffic information providing server and the wireless communication network, the route re-search is further reflected by a traffic accident further including a route generation unit for generating route information and including map data to search route information by itself. Device. The method according to any one of claims 1 to 5, The traffic information providing server, Traffic information collecting unit for collecting a variety of traffic information through a wired or wireless; An outbreak section information extracting unit analyzing the traffic information collected by the traffic information collecting unit to determine the occurrence of the outbreak and extracting section information in which the outbreak occurred; A route generation unit for retrieving and generating route information using starting and destination information transmitted by the vehicle terminal according to the traffic information provision request requested by the vehicle terminal; A route search unit for searching for a vehicle terminal providing route information including a corresponding break section based on the break section information extracted by the break section information extracting unit; An information receiving unit for receiving a traffic information providing request message and data received from the vehicle terminal; And Information transmitting unit for transmitting data to provide traffic information to the vehicle terminal Re-routing device that reflects a traffic accident including a. Re-search for a route reflecting a traffic accident in a traffic information providing system including a vehicle terminal mounted on a vehicle, the vehicle terminal having a wireless communication function and a route guidance function, and a traffic information providing server providing traffic information to the vehicle terminal through a wireless communication network. In the method to provide, (a) receiving, by the traffic information providing server, the traffic information provision request message from the vehicle terminal, searching for a route using the departure point and destination information included in the corresponding route information request message, and transmitting the route to the vehicle terminal; (b) analyzing the traffic information collected in real time by the traffic information providing server to determine whether an accident occurs, including a vehicle congestion, an accident, and a road loss; (c) in the event that an accident occurs, the traffic information providing server extracts a corresponding section and searches for a vehicle terminal providing route information including the extracted section; (d) transmitting a message notifying the occurrence of an accident situation to the vehicle terminal providing the route information including the corresponding section by the traffic information providing server, and receiving the location information of the current vehicle terminal from the vehicle terminal; step; (e) determining, by the traffic information providing server, whether the corresponding vehicle terminal has passed the accidental section using the current location information received from the vehicle terminal; And (f) If the vehicle terminal does not pass through the unexpected section as a result of the determination, the traffic information providing server re-searches the route to the destination using the current location information received from the vehicle terminal and transmits it to the vehicle terminal. Steps to Re-discovery path reflecting traffic accidents, including. Re-search for a route reflecting a traffic accident in a traffic information providing system including a vehicle terminal mounted on a vehicle, the vehicle terminal having a wireless communication function and a route guidance function, and a traffic information providing server providing traffic information to the vehicle terminal through a wireless communication network. In the method to provide, (a) receiving, by the traffic information providing server, the traffic information provision request message from the vehicle terminal, searching for a route using the departure point and destination information included in the corresponding route information request message, and transmitting the route to the vehicle terminal; (b) analyzing the traffic information collected in real time by the traffic information providing server to determine whether an accident occurs, including a vehicle congestion, an accident, and a road loss; (c) in the event that an accident occurs, the traffic information providing server extracts a corresponding section and searches for a vehicle terminal providing route information including the extracted section; (d) transmitting, by the traffic information providing server, a notification message of occurrence of a sudden situation including sudden section information to the vehicle terminal providing the route information including the corresponding section; (e) determining whether the vehicle terminal has passed the corresponding accident section by determining the current location according to the accident occurrence notification message and transmitting the result to the traffic information providing server; And (f) the traffic information providing server re-searching the route to the destination using the current location information received from the vehicle terminal and transmitting the result to the vehicle terminal if the result received from the vehicle terminal does not pass through the accidental section. Re-discovery path reflecting traffic accidents, including.