KR100615014B1 - Position reporting terminal - Google Patents

Abstract

The present invention relates to a terminal for displaying location information capable of encrypting and transmitting received location information, decrypting and displaying encrypted location information, and allowing an interface with an external wireless device or a wired device. The display unit displays a power supply unit for driving power to the terminal, a GPS antenna for receiving GPS signals transmitted from a GPS satellite, a GPS receiving module for processing GPS signals received from a GPS antenna, and received location information on a screen. A terminal for displaying a location information having an LCD and a user interface for inputting user information, the location information received from the GPS receiving module is stored in an internal memory, and the display and transmission of the stored location information is performed. A main controller for controlling; An encryption and decryption unit for encrypting the location information stored in the memory under the control of the main controller, and decrypting the encrypted received information into original data; According to the control of the main control unit by providing a communication interface for transmitting and receiving position information and data with a radio device or a PC that is a wired device, location information can be encrypted and transmitted, and the encrypted location information can be received and decrypted. It is possible to send and receive encrypted decrypted location information with wireless and wired equipment.

Coordinates, mobile, receiver, position measurement, coordinate transformation

Description

Position reporting terminal {Position reporting terminal}             

1 is a block diagram showing the configuration of a terminal for displaying location information according to the present invention;

FIG. 2 is a block diagram illustrating an embodiment of an encryption / decryption unit of FIG. 1.

<Explanation of symbols for the main parts of the drawings>

160 ..... Main Controls

170 ..... cryptocurrency

171 ..... random number memory

172 .....

173 ..... Encryption Decryption Controller

180 ..... Communication Interface

The present invention relates to a terminal for displaying location information (CPRT), and in particular, the received location information can be encrypted and transmitted, and the encrypted location information can be decrypted and displayed, so that an external wireless device or a wired device can be interfaced. The present invention relates to a terminal for displaying location information.

The technique of locating the exact position of a moving object has been used for navigation of ships and aircrafts for a long time, but it was started to be used for personal or vehicle use when GPS, an automatic positioning system using satellites, was used.

GPS is a satellite navigation support system that was originally developed for military purposes. GPS provides two types of location measurement services: standard location measurement service and precision location measurement service. Among them, standard location measurement service using relatively inaccurate Coarse Acquisition (C / A) code is not suitable for civil use. Open, anyone can easily find their location and time anywhere on Earth with a C / A code receiver. Twenty-four satellites provide location information to mobile vehicles, ships and aircraft equipped with GPS receivers over 20,000 km above the ground. Due to the convenience of GPS as a navigation system and the low cost of receivers, vehicle navigation systems using GPS have been widely used in recent years, and the positioning technology using GPS satellites has high precision, time synchronization, geodetic, ship navigation, automobile and aircraft, etc. It is used in various fields, such as a navigation device of a mobile body.

In recent years, attempts have been made to integrate such GPS services into portable mobile terminals (eg, PDAs, portable computers, etc.). In addition, the interworking technology between the GPS service and the Geographic Information System (GIS) service is developing rapidly. The GIS is a technology that inputs and stores natural, social and economic information according to geographic and spatial location, and utilizes and analyzes them for various purposes. It provides economic efficiency and efficiency for data collection and processing. By using it, it has made a breakthrough in data storage and use of spatial information.

The conventional position information display terminal (GPS receiver) is composed of a GPS antenna, a GPS processing unit, a display unit, a memory, a central processing unit (CPU), a user interface unit, and the like.

The operation of the conventional location information display terminal configured as described above is as follows.

First, the GPS processor generates location information by processing a GPS signal received through a GPS antenna. The central processing unit stores location information provided by the GPS processing unit in a memory. The display unit displays various state and location information according to the operation of the terminal. For example, the reception of the location information or the location thereof is displayed. The user interface unit is a means for inputting a command for executing various functions, for example, a keypad.

Such a conventional location information display terminal has no problem in a general operating environment, but has a disadvantage in that a lot of obstacles occur in a field environment or a poor environment.

In addition, it is impossible to interface with external radio equipment (wireless equipment) or wired equipment (PC), and the encryption of received location information or decryption of encrypted location information is impossible.

 Accordingly, the present invention has been proposed to solve the problems of the conventional location information display terminal as described above,

SUMMARY OF THE INVENTION An object of the present invention is to provide a terminal for displaying location information capable of encrypting and transmitting received location information, decrypting and displaying encrypted location information, and allowing an interface with an external wireless device or a wired device. have.

"Location information display terminal" according to the present invention for achieving the above object,

A power supply unit for driving power to the terminal, a GPS antenna for receiving GPS signals transmitted from a GPS satellite, a GPS receiving module for processing GPS signals received from a GPS antenna, and an LCD for displaying the received location information on the screen And a user interface for inputting user information, comprising:

A main controller which stores the position information received from the GPS receiving module in an internal memory and controls the display and transmission of the stored position information;

An encryption and decryption unit for encrypting the location information stored in the memory under the control of the main controller, and decrypting the encrypted received information into original data;

Under the control of the main control unit is characterized in that it comprises a communication interface for transmitting and receiving position information and data with a PC, a radio or a wired equipment, which is a wireless device.

The encryption and decryption unit,

A random number memory storing a random number for encrypting the received location information or for decrypting the encrypted received data into original data;

An encryption and decryption unit that adds data stored in the random number memory and the received position information to encrypt or decrypts encrypted received data to the original data by adding the encrypted received data to the random number;

Characterized in that it consists of an encryption and decryption controller for controlling the encryption and decryption operation of the encryption and decryption.

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention according to the technical spirit as described above.

1 is a block diagram showing the configuration of a terminal for displaying location information according to the present invention.

As shown therein, a power supply unit 110 for supplying driving power (DC5V, DC3V, ...) to the terminal, a GPS antenna 120 for receiving GPS signals transmitted from a GPS satellite, and the GPS antenna GPS receiving module 130 for processing the GPS signal received at 120, LCD (LCD) 140 for displaying the received location information on the screen, and a user interface that is a keypad for inputting user information A main controller 160 for storing the location information received from the GPS receiving module 130 in an internal memory and controlling the display and transmission of the stored location information; The encryption / decryption unit 170 encrypts the location information stored in the memory under control, and decrypts the encrypted received information into original data, and the radio 210 as a wireless device under the control of the main controller 160. Or PC (personal computer) 220 that is wired equipment It consists of a communication interface 180 for transmitting and receiving location information and data.

The operation of the terminal for displaying location information according to the present invention configured as described above will be described in detail with reference to FIG. 2.

The terminal for displaying location information according to the present invention is designed to be used in a field environment or a harsh environment unlike a conventional location information displaying terminal considering a general operating environment.

In particular, it can be used normally at room temperature and high temperature of up to 85 degrees, and designed to operate at low temperature of -40 degrees, and can be used normally even when exposed to humidity of 95% ± 5% and to protect from external shock and vibration. Special ABS material is used for this purpose, and it is designed to be used in rainy environments and protected from sand / dust.

First, the power supply unit 110 supplies the driving power required for the terminal. When the power supply is made, the main controller 160 initializes each state of the terminal and maintains the position information reception standby state or communication standby state.

When receiving and processing GPS signals through the GPS satellites in the above state, the GPS antenna 120 receives the GPS signals transmitted from the GPS satellites and transmits them to the GPS receiving module 130, wherein the GPS receiving module ( 130 processes the received GPS signal using a normal processing method, and transmits the received received data to the main controller 160.

The main controller 160 stores the received position receiving data in an internal memory and simultaneously transmits the received position receiving data to the LCD 140 so that the received position information is displayed on the LCD screen.

In the above state, when transmitting the received location information to the radio 210, the wireless equipment or the PC 220, the wired equipment according to the user's request, the main control unit 160 stores the received location information stored in the memory To pass to the encryption and decryption unit 170.

Then, the encryption / decryption unit 170 encrypts the transmitted location information and delivers it to the main controller 160 again.

2 is a block diagram illustrating an embodiment of the encryption / decryption unit 170.

As shown therein, a random number memory 171 stores a random number for encrypting received location information or decrypts encrypted received data into original data, data stored in the random number memory 171 and the received location information. By encrypting or encrypting the received data encrypted with the random number and the decryption 172 to decrypt the original data, and the decryption controller 173 for controlling the decryption operation of the decryption 172 It is composed.

The encryption / decryption unit 170 configured as described above, when the reception position information is transmitted from the main control unit 160, receives it from the encryption / decryption controller 173 and transfers it to the encryption / decoder 172. The device 172 encrypts the location information by adding the actual location information transmitted from the encryption / decryption controller 173 and the random number stored in the random number memory 171, and encrypts the encrypted location information data by the encryption / decryption controller ( 173). The encryption / decryption controller 173 then transfers this to the main controller 160.

The main control unit 160 receiving the encrypted location information transmits it to the communication interface 180 so that it is transmitted to the connected radio 210 or the PC 220.

On the other hand, if the encrypted location information is transmitted through the radio 210 or the PC 220 through the communication interface 180, the main control unit 160 transmits the encrypted location information to the encryption and decryption unit 170. .

When the encrypted location information is transmitted from the main controller 160, the encryption / decryption unit 170 receives the encrypted location information from the encryption / decryption controller 173 and transmits the encrypted location information to the encryption / decryptor 172. 172 adds the encrypted position information transmitted from the encryption / decryption controller 173 and the random number stored in the random number memory 171, decrypts the encrypted position information into original data, and delivers the encrypted data to the encryption / decryption controller 173. do. The encryption / decryption controller 173 then transfers it to the main controller 160.

The main controller 160 receiving the decoded position information transmits it to the LCD 140 so that the position information is displayed on the screen.

According to the present invention described above, there is an effect that can be transmitted by encrypting the received location information.

In addition, there is an effect that can be displayed by decrypting the encrypted position information.                     

In addition, there is an effect that can easily interface with external wireless equipment (radio) or wired equipment (PC).

Claims (2)

delete A power supply unit for driving power to the terminal, a GPS antenna for receiving GPS signals transmitted from a GPS satellite, a GPS receiving module for processing GPS signals received from a GPS antenna, and an LCD for displaying the received location information on the screen And a user interface for inputting user information, comprising: A main controller which stores the position information received from the GPS receiving module in an internal memory and controls the display and transmission of the stored position information; An encryption and decryption unit for encrypting the location information stored in the memory under the control of the main controller, and decrypting the encrypted received information into original data; And a communication interface for transmitting and receiving location information and data with a PC, which is a wireless device or a wired device, under the control of the main controller. The encryption and decryption unit, A random number memory storing a random number for encrypting the received location information or for decrypting the encrypted received data into original data; An encryption and decryption unit that adds data stored in the random number memory and the received position information to encrypt or decrypts encrypted received data to the original data by adding the encrypted received data to the random number; Location information display terminal, characterized in that consisting of a decryption controller for controlling the decryption operation of the encryption and decryption.

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