KR100416974B1 - Traffic information service method and system by portable wireless telecommunication terminal - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to a portable wireless communication terminal capable of measuring a position.

I. The technical problem to be solved by the invention

The portable wireless communication terminal can efficiently receive the traffic information service according to the user's request.

All. Summary of Solution of the Invention

The gist of the present invention is to update and store the traffic information of the corresponding area at predetermined time intervals for each predetermined area, calculate the shortest path in consideration of the destination and the starting point and the surrounding traffic conditions, and the destination and A traffic information center capable of searching for and providing traffic information of the shortest route according to a departure point and the area according to the shortest route; and receiving traffic information received from the traffic information center in connection with a traffic information center according to a user's request A traffic information service method using a portable wireless communication terminal in a communication system having a portable wireless communication terminal capable of processing and knowing location information of a location where a current terminal is located,

A first process of transmitting the current location and destination information to the traffic information center according to a user's request from the terminal; and receiving the current location and destination information from the traffic information center in consideration of the surrounding traffic conditions. A second process of calculating and transmitting the shortest path information and traffic information of the area located in the shortest path to the terminal, a third process of outputting the received traffic information according to the information transmitted from the terminal, and a destination; The fourth step of transmitting the current location of the terminal and a version of the previously received traffic information by a change of the area where the terminal is located, if the terminal does not arrive at the terminal; and the traffic information center transmits the current location and transfer of the terminal. Receive a version of the traffic information and transmit the updated traffic information according to the location and version of the terminal, or The traffic information is output to a fifth process and a message or traffic information by the subscriber station, the transmission for transmitting a message indicating that a valid, characterized by a process constituted by any of claim 6 to return to the fourth step.

la. Important uses of the invention

It is used to receive and use traffic information in a portable wireless communication terminal.

Description

TRAFFIC INFORMATION SERVICE METHOD AND SYSTEM BY PORTABLE WIRELESS TELECOMMUNICATION TERMINAL}

The present invention relates to a traffic information service system and method using a portable wireless communication terminal, and more particularly to a traffic information service system and method for efficiently providing traffic information.

In the conventional traffic information service method, there is a method of broadcasting information on a traffic situation that is arbitrarily generated by using a broadcasting frequency band in a traffic information center, and receiving and using the information on each terminal. Due to the characteristics of the broadcast, the user receives the additional information other than the information requested by the user. Therefore, the user must filter out the necessary part of the received traffic information or always receive the broadcast because the necessary information is not broadcasted. If a necessary information is received, there is a problem of buffering it. That is, since it is not known when the necessary traffic information is received, there is a problem of always watching the information reception and buffering the necessary information.

However, even when paying attention to the terminal in order to receive the necessary traffic information for a long time, the received information is not updated, so there is a problem that only time is wasted if it becomes the same as the conventional information.

In addition, when passing through an area where a broadcast is difficult to receive, such as a traffic congestion section, there is a problem that the user cannot obtain information and cannot use the information or wait a long time until the information is provided again.

In addition, since the user does not know when the necessary traffic information will be received, there is a problem in that a constant load is applied to the system because the terminal must always be turned on.

Meanwhile, traffic information may be provided according to necessary conditions at predetermined time intervals according to a user's request. However, when the user enters a traffic jam section, there is a problem that the provided traffic information cannot be used. In addition, since the traffic information center needs to provide information at predetermined time intervals, the load of the traffic information center is increased, and the load of the wireless network is also increased, thereby limiting the use of the wireless network by other users.

Accordingly, an object of the present invention is to provide a traffic information system and method which can minimize the load of a wireless network and a traffic information center by efficiently providing traffic information in a traffic information service system using a portable wireless communication terminal.

Another object of the present invention is to provide a mobile communication terminal in a traffic information service system using a portable wireless terminal to minimize the load of the terminal and the load of the wireless network by reducing the need for repetitive traffic information when a new traffic information request An information system and method are provided.

1 illustrates a schematic configuration of a system for receiving traffic information according to an embodiment of the present invention.

2 shows a schematic configuration of a portable wireless communication terminal according to an embodiment of the present invention.

3 is a schematic control flowchart for receiving a traffic information service in a portable wireless communication terminal according to an embodiment of the present invention.

4 is a schematic control flow for servicing traffic information in a traffic information center according to an embodiment of the present invention.

In order to achieve the above object, the present invention provides a traffic information service for providing a traffic information service using a portable wireless terminal, the traffic information service area according to the amount of traffic change (for example, the degree of traffic flow and congestion) Divide into zones and set traffic information provision time intervals according to traffic information demands differently, update and store traffic information at the predetermined time intervals, and take into consideration the surrounding traffic conditions by receiving the current location and destination information. A traffic information center for calculating a route and transmitting the shortest route information and the latest version of the traffic information corresponding to the area located in the shortest route to the terminal, the terminal for requesting traffic information according to a user's request Send current location and destination information to the traffic information center And outputs the received traffic information according to the transmitted information, and if it does not arrive at the destination, determines whether a certain time has elapsed and whether the area in which the terminal is located is changed. In one state, the current location of the terminal and the version information of the traffic information is transmitted to request the new traffic information, and the traffic information center receives the updated traffic information of the current location of the terminal and the previous version of the traffic information. If the version of the received traffic information is compared with the version of the old version, the updated traffic information is transmitted, and if it is not the old version, the message indicating that the traffic information of the terminal is valid is characterized in that it is transmitted.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Specific details appear in the following description, which is provided to aid a more general understanding of the present invention, and it should be understood by those skilled in the art that the present invention may be practiced without these specific details. It will be self explanatory. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 illustrates a schematic configuration of a system for receiving traffic information according to an embodiment of the present invention.

2 shows a schematic configuration of a portable wireless communication terminal according to an embodiment of the present invention.

3 is a schematic control flowchart for receiving a traffic information service in a portable wireless communication terminal according to an embodiment of the present invention.

4 is a schematic control flow for servicing traffic information in a traffic information center according to an embodiment of the present invention.

Hereinafter, an embodiment according to the present invention will be described with reference to FIGS. 1 to 4.

Referring first to Figure 1, there is schematically shown a system of an embodiment according to the present invention. The terminal 10 receives the current location and destination according to the user's request, requests the traffic information to the traffic information center 30, and outputs the received traffic information to inform the user. Meanwhile, the terminal 10 first requests traffic information to the traffic information center 10 at the request of the user, and then a predetermined time has elapsed or the area where the location is changed before arriving at the destination (for example, the traffic information center 30). When the traffic information service area set in step 1) is changed, the current location and version information of the traffic information are transmitted to the traffic information center 30 for the request of the new traffic information. The wireless system 20 connects the terminal 10 and the traffic information center 30 to perform a request for traffic information and transfer of traffic information, and a GSM (GLOBAL SYSTEM FOR MOBILE) or CDMA (CODE DIVISION MULTIPLE ACCESS) method. Can be a communication system.

The traffic information center 30 updates and stores traffic information of a corresponding area at predetermined time intervals for each predetermined area. In particular, the traffic information center 30 sets the size of the zone differently according to intersections and smooth traffic conditions. For example, an area with a large amount of traffic volume is managed by subdividing the area, and an area other than the area is set to be wider, and the shortest path can be calculated in consideration of a destination, a departure point, and surrounding traffic conditions, and the terminal 10 According to the traffic information service request of the search for the shortest path according to the destination and the departure point and the traffic information of the area along the shortest path is provided to the terminal 10.

2, a schematic configuration of a portable wireless communication terminal 10 will be described below.

The controller 100 controls the overall operation of the wireless terminal and the operation for outputting the request for traffic information service and the received traffic information according to an embodiment of the present invention. The key input unit 140 includes a plurality of numeric and alphabet keys, a function key (FCN), a storage key (STO), a volume down / up key, a navigation key (up, down, left, and right), and generates key data for the keys. . The memory 120 temporarily stores a predetermined operation program and data generated while performing the operation program. The display unit 130 displays a plurality of information such as data display and operation state input from the key input unit 140. The RF unit 150 performs a demodulation operation by amplifying and filtering a signal transmitted and received through the antenna ANT. The voice processing unit 160 processes and digitizes the voice input to the microphone under the control of the control unit 100, and demodulates the voice data received through the RF unit 150 and outputs the same through the speaker. The position measuring unit 110 measures the current position of the terminal and informs the terminal. The position measuring unit 110 may be made through a global positioning system (GPS) which is widely used in the related art.

1 and 2, 3 and 4 will be described below the operation by the terminal in the embodiment according to the present invention.

In step 300 of FIG. 3, the terminal 10 transmits a call to the traffic information center 30 through the wireless system 20 and connects the call according to a user's request. Thereafter, the current location measured by the location measuring unit 110 and destination information input by the user are transmitted to the traffic information center.

Then, in step 400 of FIG. 4, the traffic information center 30 calculates the shortest path in consideration of traffic conditions of the surrounding area according to the current location and destination data of the received terminal. Here, the traffic information center 30 stores and manages traffic information for each predetermined area, and the area may be divided by east, district, or road. The zone can also be sized according to intersections and traffic conditions. For example, it is possible to subdivide and manage an area with a lot of traffic, such as setting a wide area with good traffic, a lot of intersections, and frequent traffic congestion. The traffic information of the traffic information center 30 is stored and managed with version information according to each zone and corresponding time. More specifically, the traffic information center 30 sets the traffic information service area differently according to the amount of traffic change (for example, the flow and congestion level), and provides the traffic information providing time according to the traffic information demand of the traffic information service area. Set the interval differently to update and store the traffic information of the area. As such, when segmenting and managing an area with a lot of traffic changes, the traffic information center 30 frequently receives a traffic information request from the terminal 10 requesting traffic information according to the change of the area. This is due to the fact that regional changes occur frequently when segmented and managed areas. As a result, the traffic information center 30 provides traffic information at short time intervals in a region where the traffic volume is large. On the other hand, in an area where the traffic is smooth, the change in the area occurs relatively less by setting the traffic information service area wider, and the traffic information request from the terminal 10 is less received. As a result, in an area where traffic is smooth, the traffic information center 30 provides traffic information at long time intervals. Here, the traffic information may be collected by an automatic measuring device installed in each zone every predetermined time, and may be updated by monitors located in each area.

In step 410, the traffic information center receives the current location and destination information corresponding to the traffic information request from the received terminal 10, calculates the shortest path in consideration of the surrounding traffic conditions, and in step 420, the route information and Transmit traffic information of the latest version of the area of the route. The traffic information may be made by a short message service (SMS).

If traffic information data is received in step 320 of FIG. 3, the controller proceeds to step 330 and outputs the received information. In this case, the output may be made through the display unit 130 or may be output through a separate monitor provided in the position measuring unit 110. When the location measuring unit 110 is a GPS, the path may be displayed by the built-in map data.

If the area of the area where the current terminal is located is changed or the predetermined time has elapsed by steps 340 and 360, the traffic information center 30 transmits the current terminal location and the version of the previously received traffic information to request new traffic information. Done. That is, when the traffic information service area set by the traffic information center 30 is changed or a predetermined time elapses due to the change of the location of the user of the terminal 10, the terminal 10 sends new traffic information to the traffic information center 30. Will be required. In this case, if the traffic information service area set by the traffic information center 30 is subdivided, the terminal 10 will frequently request traffic information to the traffic information center 30, and set by the traffic information center 30. If a traffic information service area is extensive, the terminal 10 will request less traffic information to the traffic information center 30.

Then, in step 430 of FIG. 4, the traffic information center 30 transmits new traffic information according to the current location of the received terminal and the previous traffic information version because there is a request for new traffic information. That is, new traffic information is transmitted by comparing the received version with the traffic information version of the current location of the terminal in the current traffic information center (step 460) or a message indicating that the traffic information of the terminal is valid information (step 470). )

Thereafter, in step 370 of FIG. 3, the terminal proceeds to step 380 in response to the reception of the new traffic information, and outputs the corresponding traffic information, or outputs a message indicating that the currently stored traffic information is valid.

In step 390, the terminal 10 determines whether the current location is the destination through the location measuring unit 110, and if not, the terminal 10 proceeds to step 340 and requests new traffic information according to a change in time or location. When you arrive at your destination, stop asking for traffic information anymore.

Briefly, the present invention is as follows.

The traffic information center divides the sections by a certain area and updates the traffic information in real time, and provides the corresponding traffic information and route when the traffic information is requested from the terminal.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by the equivalents of the claims of the present invention.

As described above, in the present invention, the traffic information center sets the traffic information service area differently according to the amount of traffic change (for example, traffic flow and congestion degree), and the traffic information provision time interval according to the traffic information demand amount of the traffic information service area. Set differently so that traffic information of the area is updated, stored and managed. When a certain time elapses or the traffic information service area is changed, the traffic information request is received from the terminal requesting the traffic information and the traffic information is provided to the terminal. As a result, the present invention frequently receives the traffic information request from the terminal in the segmented traffic information service area due to the large change in traffic volume, so that the traffic information is provided at a short time interval. Since the traffic information request is less received from the terminal, the traffic information is provided at a long time interval. Therefore, the present invention can provide traffic information at short time intervals only in areas where the traffic information is frequently changed, and provide traffic information at long time intervals in other regions. Therefore, the present invention can provide reliable traffic information to the terminal while minimizing the load on the traffic information center and the wireless network. In addition, the present invention allows the mobile communication terminal to request new traffic information only when a certain time elapses or when the location of the terminal is changed. Therefore, it is possible to minimize the load of the terminal and the load of the wireless network by reducing the demand for repetitive traffic information of the mobile communication terminal. In addition, it is possible to reduce the user fee to use the traffic information can obtain an economic effect.

Claims (11)

delete delete In a traffic information system including a portable wireless terminal and a traffic information center, the traffic information center provides a traffic information service, Dividing the traffic information service area into a certain area according to the amount of traffic change and updating and storing the traffic information at a predetermined time interval; When the current location and destination information corresponding to the traffic information request is received from the terminal requesting the traffic information according to the user's request, the elapse of a predetermined time, and the change of the traffic information service area, the shortest path is calculated in consideration of the surrounding traffic conditions. Process, Transmitting the shortest route information and the latest version traffic information of the area located in the shortest route to the terminal; When the current location of the terminal and the version information of the traffic information are received for requesting new traffic information from the terminal, the traffic information received from the terminal is compared by comparing the version of the traffic information received from the terminal with the updated version of the traffic information. Transmitting the updated traffic information if the version of the old version is old, and transmitting a message indicating that the traffic information of the terminal is valid if the version of the traffic information received from the terminal is not the old version. The method of claim 3, wherein the traffic information, And is sent by a short message. A traffic information service providing method in a traffic information system including a portable wireless terminal and a traffic information center, A first process of the terminal transmitting current location and destination information to the traffic information center for a traffic information request according to a user's request; The traffic information center for dividing the traffic information service area into a predetermined area according to the amount of traffic change and updating and storing the traffic information at a predetermined time interval calculates the shortest path in consideration of the surrounding traffic conditions by receiving the current location and destination information. And a second process of transmitting the shortest route information and the latest version of the traffic information corresponding to the area located in the shortest route to the terminal, A third process of the terminal outputting the received traffic information according to the transmitted information; A fourth step of determining, by the terminal, whether a predetermined time has elapsed and whether the area in which the terminal is located is changed if the destination has not been reached; A fifth process of transmitting, by the terminal, current location and version information of the traffic information to request new traffic information when a certain time elapses before the arrival of the destination or when the area where the terminal is located is changed; When the traffic information center receives the current location of the terminal and the version of the previous traffic information, the updated traffic information is transmitted when the version of the received traffic information is old compared to the version of the updated traffic information. A sixth process of transmitting a message indicating that the traffic information of the is valid; And a seventh process in which the terminal receives and outputs one of the message indicating that the traffic information is valid and the updated traffic information, and returns to the fourth process. In a traffic information system that provides a traffic information service using a portable wireless terminal, The traffic information service area is divided into a certain area according to the traffic change amount, and the traffic information is updated and stored at a predetermined time interval, and the shortest path is calculated in consideration of the surrounding traffic conditions by receiving the current location and destination information, and the user's Sending the shortest route information and the latest version of the traffic information corresponding to the area located in the shortest route to the terminal in response to the request of the traffic information generated by the request, the elapse of a predetermined time, and the change of the traffic information service area. Has a traffic information center The terminal transmits the current location and destination information to the traffic information center to request traffic information according to the user's request, and outputs the received traffic information according to the transmitted information, and a predetermined time has elapsed before the arrival of the destination. When the state in which the zone is located is changed to any one of the state, the terminal transmits the current location and version information of the traffic information for the request of new traffic information, When the traffic information center receives the current location of the terminal and the version of the previous traffic information, the traffic information center transmits the updated traffic information when the version of the received traffic information is an old version, and the terminal is not the old version. Traffic information service system, characterized in that for transmitting a message indicating that the traffic information is valid. In the traffic information service system using a portable wireless communication terminal, The traffic information service area is divided into a certain area according to the traffic change, and the traffic information is updated and stored at predetermined time intervals.When destination and departure information corresponding to the traffic information request is received, the shortest path is calculated in consideration of the surrounding traffic conditions. Responding to the traffic information request of the terminal generated according to the user's request, the elapse of a certain time and the change of the traffic information service area, the traffic information of the corresponding zone among the calculated shortest route and the shortest route is recalled. We have a traffic information center that provides different time intervals for certain zones. The terminal is connected to the traffic information center, and the destination and departure information and the current location information of the terminal to request traffic information according to a user's request, elapse of a predetermined time and the traffic information service area changes, the traffic information center And a traffic information received from the traffic information center in response to the traffic information request. The process of claim 3, wherein the updating and storing of the traffic information is performed. The traffic information service area judged to have a large amount of traffic change is divided into a more specific area than the traffic information service area judged to have a small amount of traffic change, and the traffic information service area judged to have a small amount of traffic change, The method is characterized in that the traffic information of the area is updated and stored by dividing it into a certain area larger than the service area. The method of claim 5, wherein the second process The traffic information service area judged to have a large amount of traffic change is divided into a more specific area than the traffic information service area judged to have a small amount of traffic change, and the traffic information service area judged to have a small amount of traffic change, The traffic information center is divided into a certain area larger than the service area characterized in that the traffic information center to update and store the traffic information. The traffic information center of claim 6, wherein The traffic information service area judged to have a large amount of traffic change is divided into a more specific area than the traffic information service area judged to have a small amount of traffic change, and the traffic information service area judged to have a small amount of traffic change, Traffic information service system, characterized in that divided into a certain area larger than the service area to update and store the traffic information of the area. The method of claim 7, wherein the traffic information center The traffic information service area judged to have a large amount of traffic change is divided into a more specific area than the traffic information service area judged to have a small amount of traffic change, and the traffic information service area judged to have a small amount of traffic change, Traffic information service system, characterized in that divided into a certain area larger than the service area to update and store the traffic information of the area.