KR20070042689A - Terminal for collecting traffic information, traffic information providing system using the terminal and method thereof - Google Patents

Abstract

The present invention relates to a traffic information collecting terminal, a traffic information providing system using the same, and a method thereof.

In the present invention, the traffic information collecting terminal receives the GPS data from at least one GPS satellite and generates the traffic information target location information based on the traffic information object set up based on the GPS data, that is, the traffic information generating point. The traffic information target location information may include predetermined coordinates and time, and may further include information on the type or order of the traffic information target location information. The traffic information providing system map-matches traffic information target location information provided from terminals to nodes and links for a traffic information collection unit on an electronic map, and generates section traffic information for a predetermined section based on the map information. The section traffic information is processed and provided as traffic information. Accordingly, the terminal does not need a plurality of information and logic for generating section traffic information, and the system generates and provides traffic information based on location information composed of less data, thereby reducing the cost and time for data processing. Can be.

Traffic information, section communication information, location information, location information for traffic information

Description

Terminal for collecting traffic information, traffic information providing system using the terminal and method

1 is a diagram illustrating an example of traffic information target location information according to an exemplary embodiment of the present invention.

2 is a conceptual diagram for providing traffic information according to an embodiment of the present invention.

3 is a structural diagram of a traffic information collecting terminal according to an embodiment of the present invention.

4 is a structural diagram of traffic information target location information according to an exemplary embodiment of the present invention.

5 is a structural diagram of a traffic information providing system according to an exemplary embodiment of the present invention.

6 is an exemplary view illustrating traffic information target location information based on a traffic information generation point according to an exemplary embodiment of the present invention.

FIG. 7 is an exemplary diagram illustrating matching of traffic information target location information illustrated in FIG. 6 with unit node map information.

8 is a flowchart illustrating a process of generating location information of a traffic information collecting terminal according to an embodiment of the present invention.

9 is a flowchart illustrating a traffic information generation process according to an embodiment of the present invention.

The present invention relates to providing traffic information, and more particularly, to a traffic information collecting terminal, a system for providing traffic information using the same, and a method thereof.

In recent years, by providing traffic information to road users in real time, minimization of driving and time costs, and prevention of traffic concentration on limited roads, by dispersing vehicles as much as possible, have been provided to improve road efficiency.

Looking at the process of providing traffic information, in general, the traffic information providing center should collect information on the corresponding section from the terminals of the predetermined section, and the method of collecting such information includes a section detection method and a point detection method.

The point detection method is a method of transmitting a time or speed, etc., passing through the point detector to the traffic information center based on a signal measured from a point detector (eg, a camera, a speed sensor, etc.) mounted on the road.

However, in this case, if the speed sensor is installed on the road floor, the sensor may be damaged by an overload vehicle or damage may occur for other external reasons. In addition, the inconvenience of having to reinstall the point detector, such as sensors according to the road construction occurs, the cost increases accordingly. In addition, when a section suitable for collecting traffic information is to be changed, the installed point detector must be reinstalled or newly installed, so the section change is not flexible, and there are limitations on the road where the detector can be installed.

In the section detection method, a probe vehicle travels on a road and transmits information such as driving time and driving distance of a road section to a traffic information center through a wireless communication or a wired communication network, and uses the information in the traffic information center. This is a method of generating traffic information on each road.

As a related art, there is a "traffic information sensing device using GPS and a traffic information sensing method using the same" described in Korean Patent Application Publication No. 2003-080385. This conventional technology utilizes the GPS location data and information on the location and section of the communication information generation target stored internally, directly generating section communication information including a passing time and a passing distance for the section and transmitting the same to the center. The center reprocesses the section traffic information and uses it as traffic information.

However, since the terminal needs to directly generate section communication information by itself, the terminal should have section information (location / node / link) for map matching of GPS location data. If it is, it is not easy to deal with. That is, the changed or added information may be transmitted to the terminal through the wireless network. However, in this case, when the amount of data is large, a large communication cost is generated, causing a cost problem. In addition, by directly replacing the terminal to reflect the changed or added information, there is a problem such as the additional cost for the personnel to perform this task.

Another prior art of the section detection method is the "automatic traffic detection method and apparatus thereof" described in Korean Patent Application Publication No. 2000-15007. This conventional technology transmits the GPS position data input by the terminal at regular intervals and the current driving speed of the vehicle calculated based on the terminal to the center, and the center generates section communication information using map information and attribute information based on the corresponding data. The traffic information is then processed to generate traffic information.

In this case, since the terminal does not need to generate the section communication information directly, the terminal does not have to have the section information (location / node / link) as described in No. 2003-080385 above. In case of spreading the range, additional costs for the terminal and the like are incurred. Accordingly, there is a problem that additional costs are generated when collecting traffic information nationwide.

In addition, when the terminal transmits the GPS location information and the current driving speed of the vehicle to the center, and the center receives the data and generates the traffic information using the map information and the attribute information on the center, the GPS location information and other information are stored in the wireless network. In case of transmission through the center, a large amount of data causes a cost problem.

Therefore, the technical problem to be achieved by the present invention is to solve the conventional problems as described above, when providing traffic information, by collecting only the specific traffic information target location information provided by the system, collecting information for generating traffic information This is to make it easy and efficient.

Another object of the present invention is to efficiently generate and provide traffic information based on traffic information target location information.

Another object of the present invention is to generate and provide traffic information by effectively processing a large amount of location information in a system.

In accordance with an aspect of the present invention for achieving the above technical problem, a traffic information collecting terminal is connected to a system for providing traffic information through a network, and collects the information for generating the traffic information and provides the system to the GPS system. A data receiver for receiving GPS data through an antenna; A location information generation unit for generating traffic information target location information set based on the GPS data; A storage unit which stores the generated location information; And an information transmitter for transmitting the traffic information target location information, the location information including at least one of a coordinate, a time, a node type, and an order, when the transmission condition is satisfied.

In a traffic information providing method according to another aspect of the present invention, in a traffic information providing method of a system for communicating with a terminal mounted on a moving object to generate and provide traffic information for a predetermined section, a) the traffic information target location from the terminal; Receiving information, the location information including at least one of coordinates, time, node type, and order; b) mapping, by the system, the traffic information target location information to unit node map information; c) generating communication information on a predetermined section based on a unit node based on the map matching result; And d) the system processing the traffic information to generate traffic information and providing the traffic information.

In addition, the traffic information providing system according to another aspect of the present invention, in a system for generating and providing traffic information for a predetermined section by communicating with a terminal mounted on a moving object, the traffic information target location information from the terminal--the location information At least one of a coordinate, a time, a node type, and an order; A raw data generator configured to map-match the location information to unit node map information and to generate communication information for a predetermined section based on a unit node based on the map matching result; And a traffic information provider for processing the traffic information to generate traffic information and providing the same.

In the present invention having such a feature, the traffic information target location information is GSP data for a traffic information generation point set among GPS data obtained according to a GPS method, GPS data of a setting position corresponding to a setting distance from the traffic information generation point, and traffic information. At least one of the GPS data corresponding to the setting area having a predetermined radius based on the generation point or the setting position. In particular, the GPS data corresponding to the setting area of the traffic information target location information may be GPS data at a time when the moving object enters the setting area, passes through an intermediate point of the setting area, or first leaves the setting area.

Meanwhile, the terminal may be a terminal including an electronic map. In this case, the traffic information generation point may be at least one of an intersection on the electronic map, an accident bunch point, a surveillance camera installation point, and a dummy node of the disconnect unit. . In addition, the terminal may be a terminal that does not include an electronic map. In this case, the traffic information generation point is an arbitrarily set virtual node. In addition, the terminal may be a terminal receiving the route guidance data from the center, and in this case, the traffic information generation point may include a utterance point included in the route guidance data.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention.

In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated.

In addition, the term module described herein refers to a unit for processing a specific function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

According to an embodiment of the present invention, traffic information is generated and provided based on a GPS method, and in particular, traffic information is generated based on traffic information target location information. Here, the traffic information target location information is the basic information for generating the traffic information, which is measured by the traffic information collecting terminal and provided to the system.

The traffic information target location information is GPS data obtained based on a traffic information generation point among GPS data obtained according to a GPS system. Specifically, GSP data for a traffic information generation point set, GPS data of a setting position corresponding to a set distance from the traffic information generation point, GPS data corresponding to a traffic information generation point or a setting area having a predetermined radius based on the setting position. At least one of the. In particular, the GPS data corresponding to the setting area of the traffic information target location information may be GPS data at a time when the moving object enters the setting area, passes through an intermediate point of the setting area, or first leaves the setting area.

The traffic information generation point includes the followings.

First, when the traffic information collecting terminal includes section information (also called electronic map), a specific point of a predetermined line on the electronic map may be a traffic information generating point. For example, an intersection, an accident bunch point, a surveillance camera installation point, or the like may be a traffic information generation point, and a dummy node or the like of the disconnection unit may be a traffic information generation point.

Second, when the traffic information collection terminal does not include an electronic map, the traffic information generation point may be a virtual node arbitrarily set. If the electronic map is not included, the section traffic information cannot be generated every time GPS data is input. Therefore, a virtual node for generating information is arbitrarily set, and then the terminal enters the virtual node according to the input GPS data. If it is determined that the section traffic information is generated. According to an embodiment of the present invention, such a virtual node may be a traffic information generation point.

Third, when the center generates the section traffic information according to the information provided from the traffic information collection terminal and guides the traffic information based on the traffic information collection point, the route information vocalization point included in the route guide data provided from the center points the traffic information generation point. Can be. The route guidance vocalization point is a node configured to guide traffic information on a route from a departure point to a destination, and may be, for example, an intersection, an accident bunch point, a surveillance camera installation point, a dummy node of a disconnection unit, and the like. However, the present invention is not limited thereto, but the path guide utterance point is not a route utterance point (for example, the route guidance is not performed in the straight section, and in this case, a predetermined node of the straight section may be the route utterance point). It can also be a creation point.

1 shows an example of traffic information target location information according to an embodiment of the present invention. Specifically, FIG. 1 is a diagram illustrating traffic information target position information generated in a GPS trajectory driven by a moving body according to route guidance data (route information) from a starting point to a destination. In FIG. 1, a path utterance point or a non-route point may be a traffic information generation point, and the traffic information target location information may indicate a set position (for example, the position closest to the traffic information generation point) away from the traffic information generation point. As a reference, GPS data for a setting area having a predetermined radius. That is, the GPS data corresponding to the point in time when the moving object first starts to depart after entering the setting area having a rectangular shape based on the setting position becomes the traffic information target position information.

As described above, since the traffic information target location information according to the embodiment of the present invention is not simply the location where the GPS data is received, but the location information for a predetermined node, the information collected for generating traffic information is the trajectory of the GPS data. This is not data but location information for a particular node. Therefore, the amount of information provided to the system is significantly reduced, so that the information processing of the system and the terminal can be easily performed.

2 is a diagram illustrating a traffic information generation system using GPS according to an embodiment of the present invention.

As shown in FIG. 2, the traffic information collecting terminal 200 generates the traffic information target location information based on the data transmitted from the GPS satellites 101, 102, and 103 and transmits it to the traffic information providing system 300. The traffic information providing system 300 generates traffic information for a predetermined section based on the traffic information target location information transmitted from each terminal 200.

Here, the GPS satellites 101, 102, and 103 are systems for measuring the positions of all moving objects on the earth by calculating distances and distance fluctuation speeds, and the traffic information collecting terminal 200 includes, for example, at least three or more GPS satellites. GPS data is received from (101, 102, 103) and mounted on a moving object, for example, a probe vehicle, to measure the current position of the vehicle based on the GPS data. Here, the terminal 200 is mounted on the vehicle as an example, but the terminal according to the present invention is not limited to being mounted on the vehicle.

A GPS antenna 201 for receiving radio waves from the GPS satellites 101, 102, and 103 is connected to the traffic information collecting terminal 200. The traffic information collecting terminal 200 according to an embodiment of the present invention generates and transmits traffic information target location information set based on GPS data received at predetermined time intervals (for example, 1 second) from GPS satellites.

The traffic information providing system 300 collects and processes traffic information target location information transmitted from the traffic information collecting terminal 200 of each moving object to generate traffic information for each section on the road. In particular, the collected location information is mapped to the stored electronic map to generate traffic information for each section.

Next, the structure of the traffic information collecting terminal will be described in more detail.

3 is a view illustrating a traffic information collecting terminal 200 including a data receiver 210, a location information generator 220, a location information storage 230, and an information transmitter 240.

The data receiver 210 extracts GPS data from radio waves received from at least three or more GPS satellites 101, 102, and 103 through the GPS antenna 201. GPS data includes data such as time (hours, minutes, seconds), location information (latitude, longitude), date (year, month, day), speed, direction, and number of satellites.

The location information generator 220 generates location information of traffic information based on the extracted GPS data. That is, based on the GPS data, whether the mobile device equipped with the terminal is located at the traffic information generating point or at a set distance from the traffic information generating point, or has a predetermined radius (for example, 40 meters) based on the traffic information generating point. It is determined whether or not it is located at the time of leaving the setting area for the first time, and if the location is located in the corresponding location, the traffic information target location information is generated. In this case, the traffic information target location information at the time when the moving object starts to leave the setting area having a predetermined radius based on the traffic information generating point, that is, when the first time is to leave the setting area so that the traffic situation for the predetermined section can be easily known. Can be generated. In detail, when the moving object enters the setting area at the point of time when the moving object enters the setting area, the moving object enters the node corresponding to the setting area, but the moving object cannot be grasped by the traffic congestion. Accordingly, the traffic information target location information is generated when the moving object starts to pass or passes through the setting area having a predetermined radius based on the traffic information generation point or the like so as to know the accurate communication situation.

In addition, the traffic information target location information according to an embodiment of the present invention is implemented in a form that includes only the minimum information.

4 is a structural diagram of traffic information target location information according to an exemplary embodiment of the present invention.

In an embodiment of the present invention, in order to reduce the amount of information transmitted to the system, the traffic information target location information includes coordinates and time, and also includes order and node type. Here, the coordinates are GPS X and Y coordinates of the traffic information object measured from the GPS data, and the time represents the time at which the coordinates are generated. For example, the time may be a time at which the moving object leaves a setting area having a predetermined radius with respect to the traffic information generating point, a time at which the moving object is located at the traffic information generating point, or a set distance from the traffic information generating point. This may be the time of the remote location.

The order indicates the order of the corresponding location information among the traffic information target location information transmitted, and the node type indicates whether the traffic information target is some kind of node (for example, whether it is an intersection, a dummy node, or the last node). ). In the case of transmitting the location information periodically or when an event occurs, the value of the last node to be transmitted must be stored in the memory, but when the next period or event occurs and transmits the location information, the last position is based on the first location information. Traffic information can also be generated by calculating the value of the node.

The location information storage unit 230 stores the traffic information target location information generated as described above, and the information transmitting unit 240 processes the stored location information and transmits the stored location information to the traffic information providing system 300. In particular, the information transmitting unit 240 satisfies the transmission condition and transmits the position information to the system 300. For example, whenever the location information of the traffic information target location is generated, the location information is transmitted to the system in real time, the stored location information is transmitted to the system at every set cycle, or the stored location information is transmitted to the system when a predetermined event occurs.

The predetermined event here includes a route rescan. The route re-search refers to requesting new route information to the traffic information providing system based on the position where the mobile device equipped with the terminal is out of a predetermined distance from the starting point to the destination. The route re-search is mainly generated when the terminal 200 is a terminal that receives route guidance data from the center. When the route is searched again, information on the current position of the moving object is transmitted to the system. In this case, the information transmitter 240 may insert the traffic information target location information which has been measured and stored up to this information and transmits the information to the system. . When the predetermined event occurs as described above, the traffic information target location information may be included in the information according to the event and may be easily transmitted. In addition, the traffic information target location information collected every certain period (for example, every 5 minutes or 10 minutes) may be transmitted to the system.

Next, a structure of the traffic information providing system 300 that collects traffic information target location information from these terminals and provides traffic information based on the collected location information will be described.

5 is a diagram illustrating a structure of a traffic information providing system according to an exemplary embodiment of the present invention.

As shown in FIG. 5, the traffic information providing system 300 according to an exemplary embodiment of the present invention may include a data collector 310, a raw data generator 320, a data processor 330, and a data provider ( 340). In addition, it further includes a collection information database 350 in which the collected traffic information target location information is stored, a processing information database 360 in which traffic information for each section is stored, and a traffic information database 370 in which processed processed traffic information is stored. do.

The data collector 310 collects and processes traffic information target location information provided from the respective terminals 200. For example, errors generated due to communication problems or abnormal driving of drivers are removed from the collected traffic information target location information.

The raw data generator 320 generates raw data by matching the collected location information to an electronic map. To this end, the raw data generation unit 320 stores an electronic map consisting of nodes and links of a traffic information collection unit, maps the collected traffic information target location information on the electronic map, and based on the result, a section. Generates communication information for each star. The section-specific communication information generated here is raw data in an unprocessed state, and the raw data is processed into data in a form that can be provided by the data processing unit 330.

To this end, the raw data generator 320 includes a map information storage module 321, a map matching module 322, a verification module 323, a historical information management module 325, and a communication information generation module 326. The raw data generated by the raw data generator 320, that is, the communication information for each section, is stored in the processing information database 360.

The map information storage module 321 links the map data on the electronic map including a plurality of map nodes and a plurality of map links to the map data on the electronic map. Unit node map information that matches is stored.

The map matching module 322 matches the location information provided from the data collection unit with the unit node map information. FIG. 6 illustrates traffic information target location information based on a traffic information generating point according to an exemplary embodiment of the present invention, and FIG. 7 illustrates an example of matching location information of the traffic information target to unit node map information. . Specifically, (a) of FIG. 7 is a diagram illustrating link matching of traffic information target location information to a map for collecting traffic information of the traffic information providing system when the traffic information generating unit node is a traffic information generating point. 7 (b) is a diagram illustrating link matching of traffic information target location information to a traffic information collection map of the traffic information providing system when the traffic information generation unit node is a traffic information generation point corresponding to an intersection. Herein, although the unit node for collecting the traffic information for each section is the same as the traffic information generating point according to the embodiment of the present invention, the unit node and the traffic information generating point may be different.

As illustrated in FIG. 6, the terminal may generate location information at a traffic information generation point such as a traffic intersection or a dummy node of a general intersection center based on GPS data. When the coordinates of the position information generated in this way are matched on the unit node map information and matched with links between the unit nodes, as shown in FIG. 7A, a map matching result between the unit nodes according to the position information is obtained. If the unit node is a traffic information generating point centered on the intersection, a map matching result as shown in FIG. 7B may be obtained.

The verification module 323 verifies whether the links are connected or departed according to the result of the map matching result thus obtained, and verifies whether it is appropriate. The past information management module 324 stores map matching information verified as being appropriate. .

On the other hand, the communication information generation module 325 checks whether or not the moving object has passed a predetermined section between the unit nodes according to the map matching information, and when passing through the section to determine the passing speed with the time and distance taken to pass the section; Calculate For example, when map matching is performed as shown in FIG. 7B, the distance between the start node N1 and the end node N2 of the predetermined section (this information is already included in the unit node map information) and The passage time is calculated based on the difference between the time passing through the start node N1 and the time passing through the end node N2, and the passage speed of the section is calculated based on the distance and the passage time. Here, the time passed through each node can be known from the traffic information target location information collected from the terminal. The passage speed of the section calculated as described above becomes the communication information of the section, and the section-specific communication information is stored in the processing information database 360.

The data processing unit 330 processes raw data, that is, data in a form in which communication information for each section can be provided. For example, it filters raw data that is not suitable for information processing, and generates five-division link and communication information by rotation based on the filtered raw data. The 5-minute traffic information is supplemented based on the correction value determined according to a specific rule, and pattern information is provided for a specific section lacking data. The data thus processed is processed in a form that can be provided and output as traffic information. The traffic information provider 340 provides the traffic information processed as described above to the users, and the provided traffic information is stored and managed in the traffic information database 370.

Here, for convenience of description, the components of the terminal 200 or the system 300 are separated according to functions, but are not necessarily limited to the above separated state, and may be separated into other forms based on the functions.

Next, a traffic information providing method according to an exemplary embodiment of the present invention will be described based on such a structure.

First, a process of generating traffic information target location information in the terminal will be described.

8 is a flowchart illustrating a process of generating location information of a traffic information collecting terminal according to an embodiment of the present invention.

As shown in FIG. 8, the data receiver 210 of the traffic information collecting terminal 200 receives GSP data from a plurality of GPS satellites 10 (S100), and has a unit form capable of processing the received GPS data. The data is converted to data and the validity of the converted data is verified (S110 to S120). For example, if the number of GPS satellites transmitting GPS data is less than or equal to the set number (eg, three), it may be determined that the validity is inferior since the accuracy of the location is reduced.

Then, it is determined whether the time point at which the GPS data is received corresponds to the set transmission period (S130). If it is not the transmission period, an error occurs or it is determined that the other data is discarded, and the received GPS data is discarded. Return and receive other GPS data. These steps S120 and S130 may be selectively performed.

When the GPS data is confirmed to be valid as described above, the location information generation unit 220 compares the GPS data with the stored route information and enters or passes the setting area having a predetermined radius based on the traffic information generation point. It is determined whether the state is in a departure (S140). Here, it is determined whether or not the setting area having a predetermined radius is separated based on the traffic information generation point, but is not limited thereto. When the terminal includes the electronic map, the electronic map becomes the route information, and when the terminal does not include the electronic map, the virtual node becomes the route information, or the voice of route guidance data provided from a system such as a center. Dots can be route information.

If it is determined that the moving object has left the setting area based on the traffic information generating point, the location information generating unit 220 may determine the GPS coordinates, the departure time, the node type of the traffic information generating point, and the number of nodes based on the GPS data. Traffic information target location information including the order indicating whether the location information is generated (S150).

The information transmitting unit 240 transmits the stored traffic information target location information to the traffic information providing system 300 when a transmission condition (for example, transmission period, event occurrence, etc.) is satisfied (S160 to S170). If the transmission condition is not satisfied, the generated location information is stored and managed in the storage 230 (S180).

Accordingly, the traffic information collecting terminal 200 generates and stores the traffic information target location information corresponding to the specific location instead of the GPS trajectory data, thereby reducing the cost because it does not require a large memory. In addition, since the terminal does not calculate the section-specific communication information, there is no need for storing and updating section information necessary for calculating such information. In addition, since it is possible to generate traffic information for all roads to which mobile vehicles having all types of terminals can move, it is possible to reduce costs in terms of additional infrastructure construction and maintenance. Therefore, all types of terminals can easily provide information for providing traffic information (traffic information target location information) to the system at no additional cost.

Next, a process of generating and providing traffic information based on the location information thus provided will be described.

9 is a flowchart illustrating a traffic information generation process according to an embodiment of the present invention.

As shown in FIG. 9, when traffic information target location information is received from the traffic information collecting terminal 200, the data collection unit 310 of the system 300 converts the location information into a processable form to generate raw data. Transfer to the unit 320 (S200).

The raw data generator 320 loads the unit node map information, and when the node search for map matching based on the position information is initial, searches for a map matching point for all links of the map information. If not, the matching point is searched for in connection links according to the existing map matching (S210 to S230). In this case, validation of the searched matching point may be selectively performed (S240).

When the mapping point is found on the unit node map information, the raw data generator 320 maps the received traffic information target location information to the searched matching point, and stores the map matching result (S250). Then, it checks whether or not the moving object has passed a predetermined section between the unit nodes according to the map matching information, and generates section traffic information including a passing speed with the time and distance taken to pass the section when passing the section ( S260 to S270).

Next, the data processing unit 330 processes the traffic information for each section thus generated to generate traffic information, and provides the generated traffic information to the users (S280 to S290).

According to this embodiment, the systems can reduce the cost and time due to data processing by generating and providing traffic information based on the location information made of a small size. In addition, when the route guidance is performed based on the center communication type mobile phone, information (transportation target location information) for generating traffic information of the road on which the vehicle having the mobile phone travels may be provided along with the real-time route guidance. Therefore, as the vehicle increases, it is possible to generate high quality traffic information without additional cost, and the range in which the traffic information can be generated can be increased.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights. For example, even when generating location data for each location of a moving object by a method other than the GPS method, traffic information target location information according to the present invention may be generated based on the location data, and traffic information may be provided based on the location data.

As described above, according to an exemplary embodiment of the present invention, by collecting only specific traffic information target location information and providing the system to the system, information collection for generating traffic information is easily and efficiently performed. Therefore, a large amount of location information can be effectively processed to generate and provide high quality traffic information.

Claims (16)

In a terminal connected to a system for providing traffic information through a network, the terminal for collecting the information for generating the traffic information to provide to the system, A data receiver configured to receive GPS data through a GPS antenna; A location information generator for generating traffic information target location information based on the GPS data; A storage unit which stores the generated traffic information target location information; And An information transmitter for transmitting the traffic information target location information, wherein the location information includes at least one of coordinates, time, node type, and order, when a transmission condition is satisfied; Terminal comprising a. The method of claim 1, The traffic information target location information may have a predetermined radius based on the GSP data of the traffic information generation point set among the GPS data, the GPS data of the setting position corresponding to the set distance from the traffic information generation point, the traffic information generation point or the setting position. The terminal includes at least one of the GPS data corresponding to the set area. The method of claim 2, The terminal is a terminal including an electronic map, wherein the traffic information generating point is a traffic information generating point including at least one of an intersection on the electronic map, an accident bunch point, a surveillance camera installation point, and a dummy node of the disconnecting unit. Terminal characterized in that. The method of claim 2, The terminal is a terminal that does not include an electronic map, the traffic information generating point is a terminal, characterized in that the arbitrarily set virtual node. The method of claim 2, The terminal is a terminal receiving the route guidance data from the center, wherein the traffic information generation point characterized in that it comprises a voice point included in the route guidance data. The method according to any one of claims 2 to 5 And the location information generation unit generates traffic information target location information when the moving object first leaves the set area based on the GPS data. The method according to any one of claims 2 to 5 And the information transmitting unit includes the traffic information target location information in the information according to the event and transmits it to the system when a predetermined event occurs. In a traffic information providing method of a system for communicating with a terminal mounted on a moving object to generate and provide traffic information for a predetermined section, a) receiving, by the system, traffic information target location information from the terminal, the location information including at least one of coordinates, time, node type, and order; b) mapping, by the system, the traffic information target location information to unit node map information; c) generating communication information on a predetermined section based on a unit node based on the map matching result; And d) the system processing the traffic information to generate traffic information and providing the same; Traffic information providing method comprising a. The method of claim 8, The unit node map information is information obtained by matching a unit node and a link for collection of section-specific communication information to map data on an electronic map including a plurality of map nodes and a plurality of map links connecting the map nodes. How to provide traffic information. The method according to claim 8 or 9, Step b) Loading, by the system, unit node map information into a memory; Searching for a map matching point based on traffic information target location information on the map information; And Map matching the location information to the searched matching point; Traffic information providing method comprising a. The method of claim 10, Step c) A traffic that checks whether the moving object has passed a predetermined section between the unit nodes according to the map matching information, and generates section traffic information including a passing speed with a time and distance taken to pass the section when passing the section; How to Provide Information. The method according to claim 8 or 9, The traffic information target location information may have a predetermined radius based on the GSP data of the traffic information generation point set among the GPS data, the GPS data of the setting position corresponding to the set distance from the traffic information generation point, the traffic information generation point or the setting position. The branch includes at least one of the GPS data corresponding to the setting area, The traffic information generating point includes at least one of an intersection of an electronic map or route guidance data, an accident bunch point, a surveillance camera installation point, and a dummy node of a disconnection unit. The method of claim 12, The method for providing traffic information, wherein the unit node for collecting the traffic information for each section is the same as the traffic information generation point. In a system for communicating with a terminal mounted on a moving object to generate and provide traffic information for a predetermined section, A data collection unit provided with traffic information target location information, the location information including at least one of a coordinate, a time, a node type, and an order; A raw data generator configured to map-match the traffic information target location information to unit node map information and to generate communication information for a predetermined section based on a unit node based on the map matching result; And Traffic information providing unit to generate the traffic information by processing the communication information, Traffic information providing system comprising a. The method of claim 14, The location data generation unit The unit node map information--The map information is information obtained by matching a unit node and a link for collection of section-specific communication information to map data on an electronic map composed of a plurality of map nodes and a plurality of map links connecting the map nodes. A map information storage module for storing the information; A map matching module searching for a map matching point based on the traffic information target location information on the map information, and matching the location information to the searched matching point; And When it is determined that the moving object passes a predetermined section between unit nodes according to the map matching information, the communication information generation module generates section communication information including a passing speed with a time and distance taken to pass the section. Traffic information providing system comprising a. The method according to claim 14 or 15. A collection information database in which collected location information is stored; A processing information database in which communication information about the section is stored; And Traffic information database where the traffic information is stored More, The traffic information target location information includes a GSP data for a set traffic information generating point, GPS data of a setting position corresponding to a setting distance from the traffic information generating point, a setting area having a predetermined radius based on the traffic information generating point or the setting position. Traffic information providing system that is at least one of the GPS data corresponding to.

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