KR20070042816A - System and method for providing real time traffic information - Google Patents

Abstract

A real time traffic information providing system and method thereof are disclosed. In the real-time traffic information providing system according to the present invention, when a specific photographing device icon is selected from the icons representing a plurality of photographing devices displayed on the driving route guide screen, the traffic information is transmitted by transmitting location information on the photographing device corresponding to the selected icon. A navigation device for requesting information and receiving image data captured by a selected photographing device to display on a screen, and a photographing device corresponding to location information received from a navigation terminal among a plurality of photographing devices installed on a road according to traffic information requests. And a traffic information providing server for receiving the image data photographing the traffic situation from the retrieved photographing apparatus and transmitting the image data to the navigation terminal requesting the traffic information.

Navigation terminal, traffic information, traffic information server, photographing device

Description

System and method for providing real time traffic information

1 is a view schematically showing a traffic information providing system according to a preferred embodiment of the present invention;

FIG. 2 is a schematic block diagram of the navigation terminal shown in FIG. 1;

3 is a diagram illustrating an example of a driving route guide screen for guiding a driving route searched in response to a driving route search command;

4 is a schematic block diagram of a traffic information providing server shown in FIG. 1;

FIG. 5 is a schematic block diagram of the photographing apparatus shown in FIG. 1;

6 is a flowchart illustrating a real-time traffic information providing method according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: navigation terminal 110: GPS receiver

120: map data storage unit 125: command input unit

130: display unit 150, 310, 430: data communication module

160: decoder 170: traffic information storage unit

180: terminal control unit 200: communication network

300: traffic information providing server 320: traffic information DB

330: server control unit 400: recording device

410: recording unit 420: encoder

430: storage unit 450: camera control unit

The present invention relates to a system and method for providing real-time traffic information, and more particularly, to a system and method for providing real-time traffic information for identifying traffic information on a specific section of a road on which a moving object travels through a navigation terminal. .

Recently, due to the rapid increase in vehicles, road traffic is getting crowded day by day. There is a serious problem in that the increase speed of such vehicles is much faster than the speed of road expansion or new construction.

As one of the solutions to the traffic congestion, the navigation system is attracting attention. In general, a navigation system includes navigation messages transmitted by a plurality of GPS satellites belonging to a Global Positioning System (GPS), and detection signals of a plurality of sensors installed in a moving object such as a gyroscope and a speed sensor. The current position of the moving object is detected by using the above, and the detected current position of the moving object is mapped to map data and displayed on the screen.

Such a navigation system provides a driving route search and guidance function for navigating a driving route from a starting point of a moving object to a destination through map data, and guiding the moving body to accurately reach a destination along the searched driving route. When the navigation system is used as described above, the current position of the moving object and the shortest path from the current position to the destination can be identified, so that the given road network can be efficiently used.

However, the conventional navigation system does not provide traffic information on the driving route on which the moving object travels. That is, the traffic information on the road ahead or the surrounding road is an important factor for preventing traffic congestion, but the conventional navigation system does not provide such traffic information.

On the other hand, as a way to grasp the traffic conditions while moving through the moving object may be a method of listening to traffic broadcasts through the radio broadcasting system, or to check the characters displayed on the large billboard.

When acquiring traffic information through listening to radio broadcasts, traffic conditions may be provided in real time. However, since traffic information is provided in a random order from a broadcasting station, it is difficult to immediately check traffic information of an area desired by a driver.

In addition, when the traffic situation is identified through a large display board, the display board is fixed at a certain position, and thus has a disadvantage in that the scope of providing traffic information is limited locally.

Accordingly, a technical problem to be achieved by the present invention is to display icons for photographing apparatuses installed on a road in map data displayed on a screen of a navigation terminal, and to check traffic conditions of a section where photographing apparatuses are installed by selecting the icon. It is to provide a system and method for providing real-time traffic information.

In order to solve the above technical problem, the real-time traffic information providing system according to the present invention corresponds to the selected icon when a specific photographing device icon is selected from icons representing a plurality of photographing devices displayed on the driving route guide screen. A navigation terminal for requesting traffic information by transmitting location information of a photographing apparatus, and receiving and displaying image data photographed by the selected photographing apparatus on a screen; And searching for a photographing apparatus corresponding to the location information received from the navigation terminal among a plurality of photographing apparatuses installed on the road according to the traffic information request, and receiving image data photographing the traffic situation from the searched photographing apparatus. It comprises a traffic information providing server for transmitting information to the navigation terminal requesting information.

Preferably, the navigation terminal, the GPS receiver for receiving a navigation message transmitted by a plurality of GPS satellites; A map data storage unit for storing map data including icon information of a plurality of photographing apparatuses installed on a road; A sensor unit having a gyro sensor and a speed sensor for detecting a driving state of the moving object; A command input unit for receiving a driving route search command and an icon selection command; A data communication module for performing data communication with the traffic information providing server connected through a communication network; And searching for the driving route from the current position of the moving object to the destination by using the map data stored in the map data storage in response to the driving route searching command, and searching the driving route, the current position of the moving object, and the searched route. The driving route guidance screen including an icon representing a plurality of photographing apparatuses installed on a driving route is displayed on a display unit, and the location information of the photographing apparatus corresponding to the selected icon among the plurality of photographing apparatus icons is displayed on the traffic information providing server. And a terminal controller for controlling the data communication module to transmit the data.

The traffic information providing server includes: a data communication module for performing data communication with the navigation terminal and a plurality of photographing apparatuses installed on the road; A traffic information database storing location information and network addresses of the plurality of photographing apparatuses; And searching for a network address of a photographing apparatus corresponding to the location information received from the navigation terminal from the traffic information database in response to the traffic information request, and transmitting an image data request signal to the searched network address. It includes a camera control unit for controlling.

On the other hand, to solve the above technical problem, the real-time traffic information providing method according to the present invention, the driving route from the starting point to the destination of the moving object using the map data stored in the map data storage unit in response to the driving route search command Searching for; Displaying a driving route guidance screen including the searched driving route and an icon representing a plurality of photographing apparatuses installed on the searched driving route; Requesting traffic information by transmitting location information of a photographing device corresponding to the selected icon to a traffic information providing server connected through a communication network when a specific photographing device icon is selected among the plurality of photographing device icons; And receiving image data photographed by the photographing apparatus corresponding to the selected icon from the traffic information providing server and displaying the image data on the screen in response to the traffic information request.

The starting point of the moving object is a position searched using the navigation message received by the GPS receiver and the driving state detection signal of the moving object detected by the sensor unit installed in the moving object.

The image data received from the traffic information providing server is any one of still image data and moving image data, and is characterized by being data encoded in a predetermined format.

Hereinafter, with reference to the accompanying drawings will be described the present invention in more detail. However, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

1 is a view schematically showing a real-time traffic information providing system according to a preferred embodiment of the present invention.

As shown in FIG. 1, the traffic information providing system according to the present invention includes a navigation terminal 100, a communication network 200, a traffic information providing server 300, and a plurality of photographing apparatuses 400.

The navigation terminal 100 is mounted on a moving object such as a vehicle to guide the optimum driving route from the starting point of the moving object to the destination, and is connected through the communication network 200 when the driver requests traffic information for a specific section on the driving route. The traffic information providing server 300 requests the traffic information by transmitting information on the selected section. Here, the specific section on the driving route means a section in which the photographing apparatus 400 for photographing the traffic flow is installed.

The navigation terminal 100 according to the present invention displays an icon representing a plurality of photographing apparatuses installed on a driving route of a moving object on a driving route guide screen, and the selected icon when the driver selects an icon displayed on the driving route guide screen. The location information of the photographing apparatus corresponding to the traffic information providing server 300 to request the traffic information.

Then, the traffic information received from the traffic information providing server 300 in response to the request is provided to the driver through the screen.

Meanwhile, the traffic information providing server 300 performs data communication with the navigation terminal 100 and a plurality of photographing apparatuses 400 installed in highways, national roads, provincial roads, downtown roads, and the like.

When the traffic information providing server 300 requests traffic information for a specific section from the navigation terminal 100, the traffic information providing server 300 is provided with image data photographing the traffic flow through data communication with a photographing apparatus installed in the specific section. The image data provided from the photographing apparatus installed in the section is provided to the navigation terminal 100 requesting traffic information.

FIG. 2 is a schematic block diagram of the navigation terminal 100 shown in FIG. 1.

As shown in FIG. 2, the navigation terminal 100 according to the present invention includes a GPS receiver 110 that receives a navigation message transmitted by a plurality of GPS satellites 500 through a GPS antenna 105, and a moving object. Sensor unit 115 having a gyroscope and a speed sensor for detecting a driving state, and a map data storage unit 120 storing map data including icon information of a plurality of photographing apparatuses 400 installed on a road. ), A command input unit 125 for receiving a user operation command, a display unit 130 for displaying a driving route guide screen for guiding a driving route of the moving object, and a guide for generating a guide voice signal and outputting the generated voice signal to the speaker 135. Providing the traffic information through the voice generator 140, the data communication module 150 for performing data communication with the traffic information providing server 300 connected through the communication network 200, and the data communication module 150 Received from server 300 A decoder 160 for decoding image data, a traffic information storage unit 170 storing image traffic information provided from the traffic information providing server 300, and a map data storage unit 120 in response to a driving route search command. And a terminal controller 180 for searching the driving route from the current position of the moving object to the destination using the map data stored in the display unit, and displaying the driving route guide screen on the display unit 130 for guiding the found driving route.

3 is a diagram illustrating an example of a driving route guide screen for guiding a traveling route searched in response to a driving route search command. As shown in FIG. 3, the driving route guidance screen according to the present invention includes icons (A) indicating a photographing apparatus installed on the searched driving route and the current position information of the moving object as well as the searched driving route.

When any one of the photographing device icons is selected from the plurality of photographing device icons (A) displayed on the driving route guide screen, the terminal controller 180 determines the position information (GPS coordinates) of the photographing device selected from the map data storage unit 120. Information) and transmits the detected location information to the traffic information providing server 300 connected through the communication network 200 to request traffic information on a section in which the corresponding photographing apparatus is installed.

In response to the request, when the image data photographed by the photographing apparatus corresponding to the selected icon is received from the traffic information providing server 300, the terminal controller 180 decodes the received image data and displays it on the display unit 130. .

Accordingly, the driver may check the traffic state of the road currently being driven or the road to be driven through the image data displayed on the screen of the display unit 130. If the currently running road or the road to be driven is congested due to an accident, construction, or the like, and the traffic communication is not smooth, the driving path re-search command is applied. In this case, the terminal controller 180 re-searches the driving route from the current position of the moving object to the destination by reflecting the traffic information received from the traffic information providing server 300.

On the other hand, Figure 4 is a schematic block diagram of the traffic information providing server 300 shown in FIG.

As shown in FIG. 4, the traffic information providing server 300 according to the present invention includes wired or wireless data and a plurality of photographing apparatuses 400 installed on a navigation terminal 100 or a road connected through a communication network 200. A data communication module 310 for performing communication, location information (eg, GPS coordinate information) for the plurality of photographing apparatuses 400, a network address (IP) of each photographing apparatus 400, and the plurality of photographing photographs. A server control unit 330 for controlling the overall operation of the traffic information database (Data Base, referred to as "DB") 320 and the traffic information providing server 300 that stores the image data received from the device 400 Include.

The server controller 330 searches for the network address of the photographing apparatus based on the location information of the specific photographing apparatus received from the navigation terminal 100 in response to the traffic information request. The server controller 330 controls the data communication module 310 to transmit the image information request signal to the searched network address. In response to the image data being received from the photographing apparatus, the server controller 330 controls the data communication module 310 to transmit the image data received from the photographing apparatus to the navigation terminal 100.

FIG. 5 is a schematic block diagram of the photographing apparatus 400 illustrated in FIG. 1.

The photographing apparatus 400 according to the present invention includes an encoder 420 for encoding the image data photographed by the photographing unit 410 into a predetermined format, and a storage unit 430 for storing the image data encoded by the encoder 420. ), A data control module 440 for performing data communication with the traffic information providing server 300, and a camera controller 450 for controlling the overall operation of the photographing apparatus 400.

The encoder 420 encodes the image data photographed by the photographing unit 410 to a Moving Picture Experts Group (MPEG) or Joint Photographic Experts Group (JPEG) standard. For example, when the image data photographed by the photographing unit 410 is moving image data, the image data is encoded in the MPEG standard, and in the case of the still image data, the image data is encoded in the JPEG standard.

When the image control request signal is received from the traffic information providing server 300 through the data communication module 440, the camera controller 450 encodes the image data photographed by the photographing unit 410 to provide the traffic information providing server 300. The encoder 420 and the data communication module 440 are controlled to be transmitted to ().

6 is a flowchart illustrating a real-time traffic information providing method according to a preferred embodiment of the present invention.

1 to 6, when a starting point and a destination of a moving object are input in response to a driving route search command (S610 and S620), the terminal controller 180 uses the map data stored in the map data storage unit 120. The driving route from the starting point to the destination of the moving object is searched for (S630).

Here, the starting point of the moving object is the current position of the moving object searched using the position input from the driver through the command input unit 125 or the navigation message received through the GPS receiver 110 and the signal detected by the sensor unit 115. Can be set to

The terminal controller 180 which has searched for a driving route (for example, an optimal driving route) from the starting point to the destination of the moving object includes a driving route guide screen including an icon representing a searched driving route and an imaging device installed on the searched driving route. Is displayed on the display unit 130 (S640).

When a specific photographing device icon is selected among the plurality of photographing device icons displayed on the driving route guide screen (S650), the terminal controller 180 detects location information of the photographing device corresponding to the icon selected from the map data storage unit 120. (S660).

The terminal controller 180 transmits the detected location information to the traffic information providing server 300 and requests traffic information on a section in which the selected photographing apparatus is installed (S670).

Thereafter, the terminal controller 180 determines whether image data photographed by the selected photographing apparatus is received from the traffic information providing server 300 (S680).

The terminal controller 180 receiving the image data corresponding to the traffic information from the traffic information providing server 300 decodes the received image data and displays the received image data on the display unit 130 (S690).

Accordingly, the driver can check the traffic situation of the road corresponding to the path on which the moving object travels through the display unit 130 of the navigation terminal 100 in real time, thereby more efficiently using the given road network.

As described above, according to the real-time traffic information providing system and the method for providing traffic information using the same according to the present invention, the traffic information of the section in which the photographing device is installed can be checked in real time by selecting the photographing device icon displayed on the driving route guide screen. Therefore, the driver can avoid a section with heavy traffic. Therefore, traffic volume can be distributed and road congestion can be eliminated.

Although the present invention has been described in detail with reference to exemplary embodiments above, those skilled in the art to which the present invention pertains can make various modifications to the above-described embodiments without departing from the scope of the present invention. Will understand. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

Claims (6)

When a specific photographing device icon is selected from the icons representing a plurality of photographing devices displayed on the driving route guide screen, traffic information is requested by transmitting location information about the photographing device corresponding to the selected icon, and the selected photographing device A navigation terminal receiving the captured image data and displaying the same on a screen; And Search for a photographing apparatus corresponding to the location information received from the navigation terminal among the plurality of photographing apparatuses installed on the road according to the traffic information request, and receive the image data photographing the traffic situation from the searched photographing apparatus. Real-time traffic information providing system comprising; traffic information providing server for transmitting to the navigation terminal requesting. The method of claim 1, The navigation terminal, A GPS receiver for receiving a navigation message transmitted by a plurality of GPS satellites; A map data storage unit for storing map data including icon information of a plurality of photographing apparatuses installed on a road; A sensor unit having a gyro sensor and a speed sensor for detecting a driving state of the moving object; A command input unit for receiving a driving route search command and an icon selection command; A data communication module for performing data communication with the traffic information providing server connected through a communication network; And In response to the driving route search command, the driving route from the current position of the moving object to the destination is searched using the map data stored in the map data storage, and the searched driving route, the current position of the moving body, and the searched driving The driving route guidance screen including an icon representing a plurality of photographing apparatuses installed on a path is displayed on a display unit, and location information of a photographing apparatus corresponding to the selected icon among the plurality of photographing apparatus icons is transmitted to the traffic information providing server. And a terminal controller for controlling the data communication module to transmit the real-time traffic information providing system. The method of claim 1, The traffic information providing server, A data communication module performing data communication with the navigation terminal and a plurality of photographing apparatuses installed on the roadway; A traffic information database storing location information and network addresses of the plurality of photographing apparatuses; And When there is a traffic information request from the navigation terminal, the network address of the photographing apparatus corresponding to the location information received from the navigation terminal is searched from the traffic information database, and the image data request signal is transmitted to the searched network address. Camera control unit for controlling the communication module; real-time traffic information providing system comprising a. Searching for a driving route from the starting point to the destination of the moving object using the map data stored in the map data storage in response to the driving route search command; Displaying a driving route guidance screen including the searched driving route and an icon representing a plurality of photographing apparatuses installed on the searched driving route; Requesting traffic information by transmitting location information of a photographing device corresponding to the selected icon to a traffic information providing server connected through a communication network when a specific photographing device icon is selected among the plurality of photographing device icons; And And receiving image data photographed by the photographing apparatus corresponding to the selected icon from the traffic information providing server in response to the traffic information request and displaying the image data on the screen. The method of claim 4, wherein The starting point of the moving object is a location searched using a navigation message received by a GPS receiver and a driving state detection signal of the moving object detected by a sensor unit installed in the moving object. The method of claim 4, wherein The image data received from the traffic information providing server is any one of still image data or video data, and the real-time traffic information providing method, characterized in that the data is encoded in a predetermined format.

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