KR20050057761A - Method for alarming the presence of an overspeeding-vehicle-searching camera according to the position in mobile communication device - Google Patents

Abstract

The present invention relates to a method for alarming a user when a mobile communication terminal having a location calculation function approaches a speed detection camera and within a tolerance distance. If the information on the position of the speed detecting camera is input to the mobile communication terminal in advance, and the 'speed detection camera alarm' function is subsequently executed, the mobile communication terminal periodically calculates the current position so that it is within the tolerance range. If it matches the position of the detection camera, the user is alerted with a ringtone and / or vibration.

Description

Method for alarming the presence of an overspeeding-vehicle-searching camera according to the position in mobile communication device}

According to the present invention, when the current position of the terminal in the mobile communication terminal having a position calculation function coincides with the position of the speed camera input in advance and within a tolerance range, the user detects that the speed camera is close to the user by ringing / vibration. It is about how to.

Modern mobile communication terminals have tended to increase user convenience by adding various additional functions in addition to the simple voice call function. In particular, the position calculation function provided by the existing Global Positioning System (GPS) terminal is built into the mobile communication terminal itself, or even using three base station systems even without a separate GPS function. It enables to identify the location to provide a variety of services associated with the location information.

In this case, the GPS method refers to a GPS receiver that accurately calculates the current position by triangulation method using three different distances by measuring accurate time and distance from three or more satellites. This refers to determining the position of the terminal by measuring the relative difference in propagation time from two base stations to the terminal.

However, in the past, such a positioning technology was provided only through a web site such as a GPS site, thereby limiting the use of the information.

On the other hand, unmanned speed detection cameras are installed throughout the main roads to crack down on speeding, which is the biggest cause of traffic accidents. However, in the area where such a speed detection camera is suspected, the driver is more likely to be embarrassed to find the camera, and thus it is frequently reported that this causes a traffic accident. According to this, the National Police Agency is also carrying out a traffic policy in a way that has an adverse effect.In this case, the driver is warned that the speed detection camera is ahead, so that the driver can adjust the speed without causing significant agitation. It is to prevent such incidental traffic accidents.

However, as pointed out above, it is possible to have a separate GPS terminal to be warned of the presence of the speed detection camera, but there is a double burden, and the mobile terminal can only be checked on the website together with the location of the speed detection camera. If you have no choice but to provide useful information, there is a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems. In a mobile communication terminal having a location calculation function, the speed detection camera may be provided to a user when the current position of the terminal coincides with the position of the speed detection camera input in advance. It is aimed to provide a way to alarm the presence of a ring / vibration near you.

In order to achieve the above object, the present invention provides a first step of calculating a current position of a mobile communication terminal, and comparing a current position with a position of a pre-stored speed detecting camera and alarming a user when the difference is within a set distance. With steps.

At this time, the position of the speed detecting camera is previously stored in the memory of the mobile communication terminal by receiving a result value searched through the database built in advance.

In addition, the current position of the mobile communication terminal, the mobile communication terminal equipped with a Global Positioning System (GPS) may receive a GPS satellite signal to calculate the current position value directly For example, the GPS-equipped mobile communication terminal may receive a GPS satellite signal, transmit the information to the reference station, calculate a location value at the reference station, and transmit the information to the mobile communication terminal. In addition, the three base stations may be a signal of the mobile communication terminal to calculate the position value.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1A illustrates a network diagram illustrating a process of calculating a position value of a mobile communication terminal using GPS in order to implement the speed detection camera alarm method according to the present invention. This is a positioning method that knows the distance between the mobile communication terminal and the GPS satellite by measuring a time of arrival (TOA) between the GPS satellite and the mobile communication terminal.

GPS can be divided into three components: space segment, control segment, and user segment. In FIG. 1A the universe corresponds to GPS satellites 110a, 111a, 112a and 113a, the control to reference station 120a and the user to sender 100a, respectively.

The space portion is composed of GPS satellites 110a, 111a, 112a, and 113a which continuously transmit navigation messages required for position calculation to a user through a carrier wave. The carrier wave is accurately adjusted to two frequencies L1 (1575.42MHz) and L2 (1227.6MHz) in the L band and transmitted to the user 100a. Each of the GPS satellites 110a, 111a, 112a, and 113a is arranged in four circular orbits each with an inclination angle of 55 °, which is the user's three-dimensional position and receiver. It is specially designed so that at least four satellites are always visible across the globe to calculate the clock error. Satellite data transmitted from each GPS satellite (110a, 111a, 112a, 113a) is transmitted to the user (100a) in a code division multiple access (CDMA) method, so the GPS receiver receives navigation data corresponding to each satellite. You can receive clearly.

The control part tracks and monitors the GPS satellites through various control stations 120a distributed throughout the country, and estimates the position of the satellites as accurately as possible and transmits various correction information to the satellites. This correction information is also continuously transmitted to the user as part of the navigation data.

The user portion consists of a GPS receiver 100a that receives a GPS satellite signal and calculates a location. The GPS receiver uses the navigation data received from the satellite to calculate the user's location and speed. The GPS antenna connected to the receiver tracks the GPS satellite signal with its own built-in algorithm, and if only one satellite signal is tracked, information about the relative position of the other satellites can be obtained from the satellite in a short time. You can track the signals.

FIG. 1B shows a network diagram for implementing the speed detection camera alarm method according to the present inventors. In particular, FIG. 1B shows a case where three base stations 110b, 111b, and 112b are used to calculate a caller position value. . This is a positioning method that determines the position by measuring the relative difference between the radio wave arrival time from two base stations, also known as TDOA (Time Difference of Arrival) method.

The basic principle of TDOA is that the propagation time difference is measured in proportion to the difference of the distance from the two base stations to the terminal, and the terminal is positioned on the hyperbolic line where the distance is constant at both base stations. At this time, each base station should be synchronized, and time synchronization between base stations is performed by using a satellite clock. Through this, two hyperbolas are obtained from three base stations and the intersection of the two curves becomes the position of the terminal.

Figure 2 is a flow chart for implementing the speed detection camera alarm method according to the inventor position.

First, the position information is received from a database previously constructed for the position of the speed detecting camera and stored in advance in the memory of the mobile communication terminal (S201). At this time, it is preferable that the search and information transmission service of the database is performed through the Internet network. Therefore, a person possessing a mobile communication terminal capable of accessing the Internet can directly receive the location information through the WAP server. In addition, the user can access the Internet through a PC terminal, download the location information to the PC, and then reconnect the cable or cable. It may be transmitted to a mobile communication terminal using wireless data communication.

If the speed detection camera alarm function is selected in the terminal menu, the terminal periodically starts calculating the current position (S203). At this time, the current position may be calculated only due to the menu selection of the present function, or may use the position value that is periodically calculated by the GPS system and registered in the terminal.

In addition, each time the position is calculated, the difference is calculated by comparing the calculated position value with the position value of the speed detection camera stored in advance received from the database (S205). At this time, the calculated result value will be the smallest value among the compared values (i.e., the position difference value with the nearest camera among the speed detection cameras becomes the result value).

When the difference between the two position values is smaller than the set distance value, the user is alerted with a ring tone and / or vibration and outputs a message such as 'The speed detection camera is in front' (S207). At this time, the distance value may be preset internally to a distance enough to earn a time enough to receive the alarm while the vehicle is driving, such as deceleration, or to set the distance value directly in the terminal. You can also provide a menu that allows you to: In addition, in the alarm method, a menu for directly setting the type of the ring / vibration method applied to the 'speed detection camera alarm function' may be provided, or the alarm method preset in the terminal itself may be used as it is.

If the difference between the two position values is larger than the set distance value, the process is repeated from step S203 until the user terminates this function.

Figure 3 is a functional block diagram of a mobile communication terminal for implementing the speed detection camera alarm method according to the inventor location. This is a block diagram of a terminal for calculating a location using GPS in particular, and in addition to the functional components of a general mobile communication terminal, a GPS receiver 320 is additionally included.

The control unit 308 should be provided with a function for calculating the current position mainly from the data demodulated by the GPS receiver 320. Of course, the GPS receiver 320 of the terminal simply has a function of receiving a GPS signal and transmitting it to an external GPS positioning system, and the position information calculation from the actual GPS signal may be performed in the GPS positioning system. At this time, if the terminal to calculate the location using the base station, the GPS receiver 320 is not required separately, but the control unit 308 requests the base station to transmit the location data, and receives the location data from the base station from there It must have a function to extract the position value.

Particularly, in the present invention, the position information of the speed detection camera stored in the memory unit 306 is read and compared with the current position of the terminal, but when the difference is smaller than a preset distance value, the ringer and / or vibration function is executed. You must have an algorithm.

The memory unit 306 provides a place to store the location information retrieved and transmitted from the pre-established DB for the speed detection camera position, and the display unit 302 is a ring tone and / and vibration when the speed detection camera approaches within a set distance At the same time as the alarm with the "speed detection camera is in front." Prints a message such as

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made 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 scope of the following claims, but also by those equivalent to the scope of the claims.

As described above, according to the present invention, if the current position of the terminal in the mobile communication terminal having a position calculation function coincides with the position of the speed camera input in advance within the tolerance range, the speed camera is close to the user. A method of alarming with ring / vibration is provided. This prevents the driver from passing through an area where the camera is suspected and finds it different from the original intention of the speed detection camera, thereby preventing traffic accidents, and it is necessary to purchase a GPS terminal separately to provide such a notification service. There will be no.

1A to 1B are network diagrams for explaining a method of calculating a location of a mobile communication terminal.

Figure 2 is a flow chart for implementing the speed detection camera alarm method according to the inventor position.

Figure 3 is a functional block diagram of a mobile communication terminal for implementing the speed detection camera alarm method according to the inventor location.

Claims (5)

A first step of calculating a current position of a mobile communication terminal, A second step of comparing a current position with a pre-stored speed detection camera and alerting the user when the difference is within a set distance; Speed detection camera alarm method according to the position in the mobile terminal, characterized in that it comprises a. The method of claim 1, Retrieving the location information through a pre-established database for the location of the speed detection camera, and receiving the result value and storing the result information in the memory of the mobile communication terminal. Speed detection camera alarm method according to. The method of claim 1, The current position of the mobile communication terminal, The speed detection camera alarm method according to the position in the mobile communication terminal, characterized in that the GPS-equipped mobile communication terminal receives a GPS satellite signal and calculates the position value directly. The method of claim 1, The current position of the mobile communication terminal, The mobile communication terminal equipped with GPS receives a GPS satellite signal and transmits the information to the reference station, calculates the position value at the reference station, and transmits the information back to the mobile communication terminal. Speed camera alarm according to the method. The method of claim 1, The current position of the mobile communication terminal, Speed detection camera alarm method according to the position in the mobile communication terminal, characterized in that three base stations to capture the signal of the mobile communication terminal to calculate the position value.