KR101161213B1 - Method of traffic information service in portable terminal - Google Patents

Abstract

The present invention provides a traffic information service method of a portable terminal, wherein, when a service access event occurs when the traffic information service request is made, the portable terminal receives a search word and transmits it to the traffic information server; Receiving a situation, the traffic information server receiving a search word from the portable terminal, requesting location information to the portable terminal, searching a database of the base station for information corresponding to the search word, and transmitting the information to the portable terminal. Transmitting the data to the base station; receiving power from a terminal included in the base station; measuring traffic information of a region including the base station using a change in power; and storing the traffic information in a traffic information database. Traffic information book of a portable terminal including It's about the way.

Power level, location search, traffic information service, mobile terminal location

Description

Traffic information service method of mobile terminal {METHOD OF TRAFFIC INFORMATION SERVICE IN PORTABLE TERMINAL}

1 is a diagram illustrating a method of calculating a location of a portable terminal using three radio base stations;

2 is a flowchart illustrating a flow of a traffic information service receiving process of a portable terminal.

3 is a flowchart illustrating a flow of a traffic information server that searches for and transmits information corresponding to a search word received from a portable terminal;

4 is a flowchart illustrating a flow of a base station for confirming traffic information according to power received from a portable terminal;

5 is a flowchart illustrating a flow of a base station for confirming a search word received from a traffic information server and transmitting the identified traffic information to the traffic information server.

The present invention is a method for identifying traffic information by identifying the approximate location of a terminal by using a difference in the return time of a signal sent from a portable terminal to a base station.

With the tremendous development of the telecommunications industry, researches on the location of mobile terminal users have been continued, and the current location of terminal users can be applied to car navigation in addition to the basic functions of communication devices. This is to increase the product's competitiveness by providing additional functions.

The location tracking service of a conventional terminal uses a low-orbit mobile satellite, that is, a GPS satellite, floating in the air. That is, when the information transmitting station on the ground transmits the standard time information to the GSP satellite at regular intervals, the GSP satellite calculates its location information, and transmits the time information and its location information to the base station on the ground at the set interval. Send by

At this time, upon request of each terminal, each base station transmits latitude and longitude information of each base station to each terminal through a paging channel. Therefore, one base station receives time and position information transmitted from four GPSs and calculates a time difference of each satellite to obtain the position of the base station.

However, such a conventional positioning method is expensive because of the premise of satellites and the existence of a fixed base station, and because the location information of the base station is loaded on the paging channel, the base station needs to access it, and the server informs it. Additional costs are incurred because the call (including the data connection) can only be made with the call.

The location of the terminal can be confirmed by determining the distance to the other party and the location of the other party through the functions of the portable terminal and the base station without using a satellite, and the location can be identified according to the power level between the portable terminal and the base station.

1 is a diagram illustrating a process of determining the location of a terminal using two base stations.

Referring to FIG. 1, when the portable terminal 107 can communicate with three or more base stations (base station 1, wireless base station 2, base station 3), the portable terminal 107 may receive corresponding information from three base stations. .

The position of the portable terminal 107 communicating from three or more base stations (101, 103, 105) can be determined from the cosine second theorem and the vector product formula, which is expressed as: 1>

Where d is the distance from base station 1 (101) to base station 2 (103), r1 is the distance from base station 1 (101) to mobile terminal (105) and the distance from base station 2 (103) to mobile terminal (105). , x, y is the location of the terminal.

Here, the area formula of the triangle can be applied to Equation 1, which is expressed as Equation 2.

Where s = 1/2 (d + r ₁ -r ₂ ), d is the distance from base station 1 101 to base station 2 103, and r1 is the distance from base station 1 101 to the mobile terminal 107. And the distance from the base station 2 103 to the portable terminal 107, x, y is the position of the terminal.

Referring to Equations 1 and 2, since all numbers except x and y are constants, the position coordinates of the portable terminal 107 can be obtained using the binary first-order equation.

Referring to <Equation 1> and <Equation 2>, if the mobile station is identified as two base stations, the mobile terminal cannot determine the left / right based on the connection line connecting the two base stations unless the mobile station exists in the middle of the base station. The position of the base station 105 may be determined through communication.

Accordingly, an object of the present invention is to provide a method for receiving traffic information from a traffic information server by accessing a traffic information server when receiving traffic information of a portable terminal.

Another object of the present invention is to provide a method of a traffic information server receiving a search word from a portable terminal and transmitting location information to the portable terminal.

It is still another object of the present invention to provide a method of a base station for comparing traffic received from a traffic information server to check traffic information and transmitting the same to a portable terminal.

The method of the present invention for achieving the above object is a traffic information service method using a portable terminal, the portable terminal receives a search word transmitted to the traffic information server, and the process of receiving a traffic situation from the traffic information server It is to provide a traffic information service method using a portable terminal comprising a.

Another method of the present invention for achieving the above object is a traffic information service method of a traffic information server, the traffic information server receiving a search word from a portable terminal, the traffic information to the base station by searching the base station corresponding to the search word A traffic information service method using a portable terminal, the method comprising transmitting a request signal, receiving traffic information from a base station, and transmitting the retrieved information to the portable terminal.

Another method of the present invention for achieving the above object is a traffic information service method of a base station, the step of receiving power from a portable terminal included in the base station, transmitting the power received from the portable terminal to the adjacent base station, Receiving power of the portable terminal included in each base station from the base station, and measuring traffic information of a region including the base station using a change in power and storing the traffic information in a traffic information database; A traffic information service method using a portable terminal is provided.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. 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, the detailed description thereof will be omitted.

In the present invention, in order to confirm reliable traffic information, a specific region called a road must be selected to extract a sample from the portable terminals included in the specific region. The specific region draws concentric circles from the base station on the power level identified by each portable terminal, sets an area in contact with the concentric circles, confirms the information as a road, and the information referred to as the specific region is stored in a network connected to the base station.

2 is a flowchart illustrating a flow of a portable terminal for receiving a traffic condition by requesting a traffic information service according to the present invention.

Referring to FIG. 2, first, in step 201, the portable terminal confirms occurrence of a service connection event for checking traffic conditions. If the service access event does not occur in step 201, the portable terminal proceeds to step 203 and checks the service access event again after waiting. If the service access event occurs in step 201, the process proceeds to step 205 to receive a signal indicating the service connection from the traffic information server, and the portable terminal proceeds to step 207 to input a search word. In step 207, a user inputs a search word in a portable terminal to transmit a region to be searched to check traffic conditions to a traffic information server. The search word is a place name, a road name or a search to check traffic information conditions. Special area to say.

When the search word is completed in step 207, the mobile terminal proceeds to step 209 to transmit the search word input in step 207 to the traffic information server. When the transmission is completed, the portable terminal proceeds to step 211, from the traffic information server. The traffic information of the region corresponding to the search word is received and the algorithm ends.

3 is a flowchart illustrating a flow of a server of traffic information for receiving a search word from a portable terminal and transmitting information corresponding to the information to the portable terminal according to the present invention.

Referring to FIG. 3, in step 301, the traffic information server checks a service request signal from a portable terminal.

If the service request signal does not occur in step 301, the traffic information server proceeds to step 303 and checks the reception of the service request from the portable terminal after waiting.

If it is confirmed in step 301 that the service request signal is received from the portable terminal, the traffic information server proceeds to step 305 to receive a search word from the portable terminal. When the reception of the search word in step 305 is completed, the traffic information server proceeds to step 307 to search for a base station corresponding to the search word, and the traffic information server proceeds to step 309 to transmit a traffic information request signal to the base station.

When the transmission of the traffic information request signal is completed in step 309, the traffic information server proceeds to step 311 and receives traffic information from the base station. In step 313, the traffic information server transmits the received information to the terminal and ends the present algorithm.

4 is a flowchart illustrating a flow of a base station for confirming traffic information after measuring a power level received from a portable terminal according to the present invention.

Referring to FIG. 4, in step 401, power information is received from a terminal included in an area of a base station. In step 403, power of the terminals is transmitted to an adjacent base station.

When the power transmission is completed in step 403 to the neighbor base station, the base station proceeds to step 405 to receive the information of the terminal included in each base station from the neighbor base stations.

Step 407 is a process of measuring the traffic information according to the power with the information received from the neighboring base station to check the power information of the received portable terminal to determine the speed and the value for the value of the power level stored in the traffic information database Compare speeds according to power level differences and average them and check traffic information.

The method of checking traffic information in this step is a method of checking traffic information by comparing the difference between the data stored in the traffic information database and the measured power level and averaging the power information received from each base station for reliable speed measurement. The process of averaging is performed, and the averaging work in this process is performed by excluding the negatively affected values. In the method, removing a value having an adverse effect is to check the speed of the terminal as information that stops or walks when the speed is lower than a predetermined reference value according to the speed of the terminal, thereby providing incorrect information. Say how.

When the traffic information measurement of step 407 is completed, the base station proceeds to step 409 to store the measured power level in the traffic information database and proceeds to step 411 to confirm a predetermined time interval. The predetermined time of the step refers to a predetermined interval for measuring the power level at a predetermined time interval when measuring the power level of the base station, and compares the recent power level measurement time with a predetermined measurement time interval. If the power level measurement time is less than the predetermined measurement time interval, the base station terminates the algorithm, and if the recent power level measurement time is greater than the predetermined measurement time price by comparing the latest power level measurement time with the predetermined measurement time interval. The base station performs power level measurement again.

5 is a flowchart illustrating a flow of a base station for confirming traffic information by checking a search word received from a traffic information server according to the present invention.

Referring to FIG. 5, in step 501, a traffic information request is confirmed. If there is no traffic information request as a result of step 501, the base station proceeds to step 503 and reconfirms the traffic information request after waiting.

If the traffic information request is confirmed in step 501, the base station checks the search word in step 505 and proceeds to step 507 to search for information corresponding to the search word. Step 507 is a process of searching for information corresponding to the search received from the traffic information server in the traffic information database.

Upon completion of the traffic information search in step 507, the base station proceeds to step 509 to transmit the searched information to the traffic information server and ends the present algorithm.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of various modifications within the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, instead of location tracking using GPS, which is required to pay a cost, information on the portable terminal and the base station carried by the user is measured by measuring the location and speed of the portable terminal to check the traffic situation and to determine the traffic information. Provides convenience to users by providing services.

Claims (11)

In the traffic information service method of the base station, Measuring the power level of the mobile terminals belonging to the base station; Receiving power levels of terminals belonging to neighboring base stations; Comparing and storing the moving speed of the terminal with the traffic information database, which is the speed information for each power level, which stores the power levels of the terminals in advance; Method of using a change in the movement speed of the terminal for each region as the traffic information for each region. The method of claim 1, Traffic information service method of the base station, When receiving a search word from the traffic information server, obtaining traffic information about the received search word, Including the process of transmitting the obtained traffic information to the traffic information server, The query is Information regarding a region to which the portable terminal wants to check traffic information, characterized in that it comprises at least one of a place name, a road name, a region name to be searched. The method of claim 1, And receiving the power level of the terminal and repeating the process of identifying and storing the change in the moving speed according to the power level at predetermined time intervals. The method of claim 1, The process of using the movement speed change of the terminal by region as traffic information by region, And determining a traffic volume or a traffic state of each region by using location information and speed information obtained by using power level change of the terminals. The method of claim 1, The process of using the movement speed change of the terminal by region as traffic information by region, Method for averaging traffic information, except the terminal that has an adverse effect on the judgment. The method of claim 5, The adversely affecting terminal means a terminal corresponding to a speed below a predetermined reference value. The method of claim 1, Traffic information service method of the base station, And measuring the power level of the mobile terminals belonging to the base station, and providing the measured power level information to the adjacent base station. In the traffic information service method of the traffic information server, Receiving a search query for a region requiring traffic information from the mobile terminal; Identifying the base stations belonging to the received query, Requesting and receiving traffic information from the identified base station; And providing the received traffic information to the portable terminal. delete delete delete

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