KR19980027099A - Location Search Using Cell Phone - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone, and in particular, to a location search method using a cellular phone that enables a user carrying a cellular phone to check his / her location using a satellite.

In general, in order to use a GPS (Global Positioning System) system using an expensive GPS equipment is required, there is a problem that it is cumbersome for a person to carry this GPS equipment.

The present invention, by receiving the position data from the satellite via the cellular phone to analyze the position data using the GPS service system, by outputting to the cellular phone, the user can accurately determine the current position through the cellular phone, the third It can pinpoint the location of a specific cell phone user.

Description

Location search method using a cell phone.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone, and in particular, to a location search method using a cellular phone that enables a user carrying a cellular phone to check his / her location using a satellite.

In general, as shown in FIG. 1, the cellular phone includes a duplexer 10, a receiver 20, a transmitter 30, a frequency synthesizer 40, a controller 50, and a first memory unit 60. And a second memory unit 70, a third memory unit 80 (non-volatile RAM), a key unit 90, a liquid crystal display unit 100, an audio processing unit 110, and a speaker 120.

The receiver 20 receives and outputs a call signal and a call message of the other party applied through the duplexer 1 from the antenna ANT, and the transmitter 30 processes the call signal processing and the phone message of the authorized user by the duplexer ( 10) and via antenna (ANT). The frequency synthesizer 40 synthesizes and supplies a transmission frequency to the transmitter 30, simultaneously synthesizes and supplies a reception frequency applied from the receiver 20, and the controller 50 controls the overall operation of the cellular phone. The first memory unit 60 stores the operation program of the controller 50, the second memory unit 70 stores the signal processing program of the controller 50, and the third memory unit 80 is Korean. And information such as special characters and a telephone number input by the user. The key unit 90 includes a plurality of keys for inputting various indication information to the control unit 50, and the liquid crystal display unit 100 shows the reception and transmission states of the cellular phone under the control of the control unit 50. The voice processor 110 outputs a digital signal or a signal received from the controller 50 by digitalization or analog signal processing, and the speaker 120 outputs a signal applied from the voice processor 110 to the outside.

The operation of the cellular phone having the above configuration is as follows.

The reception signal of the other party input through the antenna ANT and the duplexer 10 is received by the receiver 20 and input to the controller 50. The received signal input to the controller 50 is analogized through the voice processor 110 and output to the speaker 120. On the other hand, the transmission signal is digitalized by the voice processing unit 110 through the microphone 130 is transmitted to the transmission unit 20 through the control unit 50 and then output to the antenna ANT through the duplexer 10.

On the other hand, the GPS system is a device that can know the time, location, speed, and information by using satellites to place four satellites in six orbits to pass through the equator. Rotating around two wheels a day at an altitude of 20,000 KM, the satellite can calculate the exact position of the target at any point on Earth using location signals and accurate time information from other satellites. However, in order to use the GPS system, a device capable of interpreting the location information authorized from the satellite, that is, a signal of the latitude and longitude from the satellite, and the name and database of the country, province, district, or nearby terrain, and the analyzed location It must have a device for transforming the information into a form easily understood by the user and a password for interpreting the PPS used to interpret the location information. Therefore, expensive equipment is required to use the GPS system, and there is a problem that it is cumbersome for an individual to carry the equipment.

The present invention has been made in view of the above-described problems, and by connecting a satellite (Global Positioning System) system of a satellite to a general cellular phone, the user of the cellular phone to receive the position information applied from the satellite cellular By receiving through the phone, the purpose is to be able to pinpoint the current position.

In order to achieve the above object, the present invention, in the location search method using a cell phone, the GPS service system receives the GPS signal applied from the satellite and transmits the GPS signal to the GPS service system GPS system The first process of analyzing a signal, reading the position data corresponding to the analyzed data from the database, and transmitting and transmitting the position data, the cellular phone receives and displays the position, so that the user of the cellular phone can determine his current position. and; When the cellular phone receives the GPS signal from the satellite and sends the GPS signal to the GPS service system, the GPS service system analyzes the GPS signal and reads the position data corresponding to the analyzed data from the database. And a second process of identifying a location of a specific cell by a third party by displaying the display in a form that the user can easily understand or output by voice.

On the other hand, in the location search method using a cellular phone, the first step is to check whether the selection function button of the cellular phone is input, and when the selection function button of the cellular phone is input, after displaying the main menu, the location search menu is selected. A first step of transmitting a connection request signal for connecting to a GPS service system if it is present; After the first step, the GPS service system checks whether the access request signal is received from the cellular phone, and if the access request signal is received, allocates an available idle channel and sends the access permission signal to the cellular phone. ; After the second step, the cellular phone tunes the receiving unit to receive the position data transmitted from the satellite when the access permission signal is applied from the GPS service system, and then receives the position data applied from the satellite Transmitting a modulated data after modulating a signal used in an existing cellular phone; After the third step, the GPS service system checks whether data is received from the cellular phone, and when the data is received, analyzes the data, reads the corresponding position data from the database set therein, and sends it to the cellular phone. A fourth step of terminating the operation after the operation; After the fourth step, the cellular phone includes a fifth step of checking whether the location data is received from the GPS service system and if the location data is received, displaying the location data on the display unit so that the user of the cellular phone can easily read the location data. Characterized in that.

On the other hand, in the location search method using a cell phone, the second step is, if a third party who has the authority to search the location of a specific cell phone wants to search the location of a specific cell phone through the GPS service system, When the cellular phone is requested to enter the cell phone number and the cell number of the cell phone to be searched accordingly is inputted, the GPS service system allocates a callable idle channel to the corresponding cell phone and transmits a connection request signal. ; After the first step, the cellular phone checks whether the idle mode enables the data transmission when the location search request signal is applied from the GPS service system, and transmits the access permission signal in the idle mode, and then the position data applied from the satellite. Tuning the receiving unit to receive a frequency emitted by the satellite to receive the signal, receiving the position data from the satellite, modulating the position data into a signal used in an existing cellular phone, and then transmitting the modulated data. Steps; After the second step, when the GPS service system receives the access permission signal from the cellular phone, the GPS service system checks whether the data is received from the cellular phone. When the data is applied from the cellular phone, the GPS service system analyzes the data and corresponds to the location information. It is characterized in that it comprises a third step of reading from the database set on its own to display on the display unit for easy reading by a third party.

1 is a block diagram of a typical cell phone.

2 is a conceptual diagram of a location search method using a cellular phone according to the present invention.

3A is a flowchart illustrating an operation of a cellular phone when a user of the cellular phone tries to determine a current position in the location search method using the cellular phone according to the present invention.

Figure 3b is a flow diagram of the operation of the GPS service system when the user of the cell phone to locate the current position in the method for searching a location using a cell phone according to the present invention.

4A is a flowchart illustrating an operation of a GPS service system when a third party attempts to determine a location of a specific cellular phone user in a location search method using a cellular phone according to the present invention.

Figure 4b is a flow chart of the operation of the cell phone when a third party to locate a specific cell phone user in the location search method using a cell phone according to the present invention.

Explanation of symbols on the main parts of the drawings

10: duplexer 20: receiver

30: transmitter 40: frequency synthesizer

50: control unit 60: first memory unit

70: second memory unit 80: third memory unit

90: key portion 100: liquid crystal display portion

110: voice processing unit 120: speaker

130: microphone 200: satellite

300: cell phone 400: base station

500: GPS Service System

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

According to the present invention, the receiving unit 20 of the cellular phone has a function of tuning to a frequency of 1227.60MHz or 1575.42MHz band so as to receive a GPS signal applied from the satellite 200, and the GPS signal of the cellular phone ( The present invention is implemented by adding a function capable of modulating the signal generally used in 300).

For example, when the user of the cellular phone tries to determine the current location, the operation of the cellular phone and the GPS service system will be described with reference to FIGS. 3A and 3B. First, when the user inputs the selection function button of the cellular phone, the cellular phone displays the main menu (steps S1 and S2). At this time, when the user selects the location search menu (step S3), the cellular phone sends out a connection request signal for connection with the GPS service system (step S4). At this time, when the connection request signal is received from the cellular phone (step S11), the GPS service system transmits the connection permission signal to the cellular phone after allocating an available channel (step S12). When the cellular phone receives an access permission signal from the GPS service system (step S5), the cellular phone tunes the receiver to receive the frequency emitted by the satellite to receive the position data applied from the satellite. Tuning is performed at a GPS frequency of 1227.60 MHz or 1575.42 MHz (step S6). Then, when the position data is received from the satellite (step S7), the controller of the cellular phone modulates the data applied from the satellite into a signal used in the existing cellular phone and then sends out the modulated data (step S8). After that, when data is received from the cellular phone (step S13), the GPS service system analyzes the satellite data, reads the corresponding position data from the database set therein, and sends the position data to the cellular phone. (Step S14). The cellular phone receives the position data applied from the GPS service system (step S9), and displays the current position on the display unit so that the user can easily read it (step S10). Thus, the cellular phone user can know exactly where he is currently located.

Meanwhile, when a third party wants to know the location of a user of a specific cellular phone, the operation of the cellular phone and the GPS service system will be described with reference to FIGS. 4A and 4B.

First, if a third party authorized to search the location of the cellular phone wants to search for the location of a specific cell phone through the GPS service system (step S15), the GPS service system requires the input of the desired cell phone number and the location accordingly. When the telephone number of the cellular phone to be searched is input (step S16), the GPS service system allocates an idle channel capable of making a call to the corresponding cellular phone and then sends a connection request signal (step S17). When the cellular phone receives a connection request signal from the GPS service system (step S22), the cellular phone checks whether the cellular phone is currently in the idle mode (step S23), and transmits a connection permission signal in the idle mode (step S24) to the satellite. The receiving unit is tuned to receive the frequency emitted by the satellite to receive the position data applied from (step S25). Subsequently, when the cellular phone receives data from the satellite (step S26), the controller of the cellular phone modulates this signal into a signal used in the existing cellular phone and then transmits the modulated data (step S27). On the other hand, when the GPS service system receives the access permission signal from the cellular phone (step S18), the GPS service system checks whether the data is received from the cellular phone and if the data is applied from the cellular phone (step S19). The data applied from the phone is analyzed, and the corresponding position information is read from the database set in itself, and displayed on the display unit for easy reading by a third party (step S21). Thus, the third party can know exactly where the user of the particular cell phone is currently located.

As described above, the present invention receives the position data from the satellite via the cellular phone, analyzes the position data using the GPS service system, and outputs the result to the cellular phone, so that the user can accurately grasp the current position through the cellular phone. And a third party can pinpoint the location of a particular cell phone user.

Claims (3)

In a location search method using a cellular phone, when the cellular phone receives a GPS signal from a satellite and sends a GPS signal to the GPS service system, the GPS service system analyzes the GPS signal and corresponds to the analyzed data. A first step of reading the data from the database and transmitting the location data so that the cellular phone receives and displays the location data so that the user of the cellular phone can grasp its current location; When the cellular phone receives the GPS signal from the satellite and sends the GPS signal to the GPS service system, the GPS service system analyzes the GPS signal and reads the position data corresponding to the analyzed data from the database. And a second process of identifying a location of a specific cell by a third party by displaying the text in a form easily understood by a user or outputting a voice. The method of claim 1, wherein the first process checks whether the selection function button of the cellular phone is input, displays a main menu when the selection function button of the cellular phone is input, and connects to the GPS service system when the location search menu is selected. Transmitting a connection request signal for transmitting the signal; After the first step, the GPS service system checks whether the access request signal is received from the cellular phone, and if the access request signal is received, allocates an available idle channel and sends the access permission signal to the cellular phone. ; After the second step, the cellular phone tunes the receiving unit to receive the position data transmitted from the satellite when the access permission signal is applied from the GPS service system, and then receives the position data applied from the satellite Transmitting a modulated data after modulating a signal used in an existing cellular phone; After the third step, the GPS service system checks whether data is received from the cellular phone, and when the data is received, analyzes the data, reads the corresponding position data from the database set therein, and sends it to the cellular phone. A fourth step of terminating the operation after the operation; After the fourth step, the cellular phone includes a fifth step of checking whether the location data is received from the GPS service system and if the location data is received, displaying the location data on the display unit so that the user of the cellular phone can easily read the location data. Location search method using a cell phone, characterized in that. 2. The method of claim 1, wherein the second process further comprises: if a third party authorized to search for a location of a specific cellular phone wants to search for a location of a specific cellular phone through a GPS service system, the GPS service system may provide a phone number of the desired cellular phone. When requesting an input and, accordingly, inputting the telephone number of the cellular phone to which the position is to be searched, the GPS service system is configured to transmit a connection request signal after allocating an idle channel capable of making a call to the corresponding cellular phone side; After the first step, the cellular phone checks whether the idle mode enables the data transmission when the location search request signal is applied from the GPS service system, and transmits the access permission signal in the idle mode, and then the position data applied from the satellite. Tuning the receiving unit to receive a frequency emitted by the satellite to receive the signal, receiving the position data from the satellite, modulating the position data into a signal used in an existing cellular phone, and then transmitting the modulated data. Steps; After the second step, when the GPS service system receives the access permission signal from the cellular phone, the GPS service system checks whether the data is received from the cellular phone. When the data is applied from the cellular phone, the GPS service system analyzes the data and corresponds to the location information. And a third step of reading the data from a database set in the display unit and displaying the same on a display unit for easy reading by a third party.