KR960004153B1 - Car discrimination system transmitting and receiving the phonetics of a language and data for radio machine and gps - Google Patents

Abstract

a car device having a first radio device for transmitting/receiving voice and data and a terminal device connected to the first radio device, the terminal device being comprised of a GPS(global positioning system) which converts a GPS signal into a parallel TTL level signal, ROM and RAM in which program and input/output data are stored, an input means, a microcomputer, a liquid crystal display module and an input/output means, and the first radio device radio-transmitting a first voice to the terminal device and radio-receiving a transmitting signal from a second radio device; and a main system having the second radio device for transmitting/receiving voice and data and a main station device connected to the second radio device, the second radio device radio-transmitting a second voice to the main station device and radio-receiving a transmitting signal from the first radio device, and the main station device being comprised of a modulator/demodulator which modulates/demodulates input and output signal, a level converter, a display device, and a main computer.

Description

Vehicle identification system for voice and data transmission using GPS and radio

1 is a block circuit diagram illustrating an embodiment of a vehicle identification system for transmitting and receiving voice and data using GPS and a radio according to the present invention.

* Explanation of symbols for main parts of the drawings

1,2: Radio 11: GPS Receiver

12: level converter 13: serial / parallel data converter

14: RAM 15: ROM

16 liquid crystal display 17 input switch

18: input and output control unit 19: serial / parallel conversion unit

20 Modem 21 Modulator

22: Level Convert 50: Microprocessor

60: main computer 62: CRT

100: vehicle terminal unit 200: main station device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle identification system for transmitting and receiving voice and data using a GPS (GPS) and a radio, and in particular, a GPS signal receiver is built into a terminal of a vehicle and the terminal of the vehicle By combining a radio that can transmit and receive voice and data signals for various information between the computer and the main station computer, GPS signals are received from the terminal of the vehicle and the location and unique number of the vehicle are displayed on the main system through their radio. The present invention relates to a voice and data transmission / reception vehicle identification system using a GPS and a radio, which is automatically displayed and repeatedly transmits and receives various information between a main station and a terminal of a vehicle by a voice or a code signal.

BACKGROUND ART Conventionally, as a car navigation system, radio communication equipment such as radios (vehicles and portables) and car phones are mounted on a vehicle and operated for single purpose navigation.

In order to check the current position of a vehicle equipped with only a radio or a car as described above, the central control department calls all the vehicles at once and finds a vehicle located at a necessary place to complete the mission. When no vehicle is deployed, it is difficult to find the nearest vehicle, but it is difficult to find a vehicle and it takes a long time to find a vehicle, so that it is not possible to cope quickly with the desired mission.

In particular, it was difficult to identify the current location of all vehicles quickly and accurately even when an emergency occurred with only a radio or a car mounted on a police vehicle, and the current position and vehicle number of the escape vehicle at the central control department when tracking escaped vehicles. In addition, it was difficult to check the identity, so that the police officer could not be promptly informed of the current position, vehicle number, etc. of the escape vehicle.

Accordingly, the present invention has been made to solve the above-mentioned disadvantages, and interface with a wireless communication equipment such as a radio or a car phone mounted on an existing vehicle, wireless communication and navigation function, wireless computer communication function, identity inquiry when installing a police car And by providing a response function, it is an object of the present invention to provide a vehicle identification system for transmitting and receiving voice and data using a GPS and a radio to quickly and accurately transmit and receive various information between the terminal of the vehicle and the computer of the main station.

Voice and data transmission and reception vehicle identification system using a GPS and a radio according to the present invention for achieving the above object, a vehicle device having a first radio for transmitting and receiving voice and data and a terminal unit connected thereto, and the voice and data A main system having a second transceiver for transmitting and receiving and a main station apparatus connected thereto; The terminal unit of the vehicle apparatus receives GPS signals transmitted from satellites and converts them into parallel TTL level signals; input means for inputting ROM and RAM storing programs and input / output data; Compare and calculate the received GPS signal by referring to programs and data of ROM and RAM to obtain the current vehicle position, output the vehicle position information according to the inquiry request number, and output the display signal according to the input command code signal. A microcomputer; an LCD module for displaying a command code according to a display signal output from the microcomputer; and the command command code signal outputting the vehicle position information and inquiry request number to the first radio and input from the first radio And an input / output means for outputting the output to the microcomputer. ; The first radio is configured to wirelessly transmit the first voice input through its own microphone and the plurality of pieces of information of the terminal device and to wirelessly receive the transmission signal of the second radio; The second radio is configured to wirelessly transmit a second voice input through its own microphone and output information of the main station apparatus, and wirelessly receive a transmission signal of the first radio; The main station apparatus includes a modulator for modulating and demodulating a signal input and output to wirelessly transmit and receive information to and from the second radio, and converts a signal input from the modulator to a TTL level signal and converts a TTL level output signal of the main computer to the TLC level output signal. A level converter converting and outputting a signal for processing by a modulator, a display unit consisting of a CRT, and a signal displaying a map are output to the display unit, and the current position of a specific vehicle on the map is analyzed by analyzing information input from the level converter. A main computer for displaying the allocation code and the inquiry request information and outputting the command code to the level converter; It is made to selectively transmit and receive information and voice including data on the current position of the vehicle according to the GPS signal between the vehicle device and the main system.

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

An embodiment of the present invention is divided into a vehicle device and a main system, and the vehicle device includes a terminal device unit 100 and a radio 1 coupled thereto, and the main system includes a main station device 200 and a radio coupled thereto. It consists of (2). In addition, transmission and reception of vehicle information, command code information, and identity inquiry information is configured through the radios (1) and (2).

First, the terminal device unit 100 of the vehicle has a GPS receiver 11 for receiving a GPS signal including the position and time information of the vehicle propagated from a plurality of satellites, which is input to the GPS receiver 11 A level converter 12 for converting GPS signals of each satellite into a standard TTL level is connected, and the level converter 12 has a serial / parallel data conversion unit 13 for converting an input serial signal having a standard TTL level into a parallel signal. ) Is connected, and the output of the serial / parallel data converter 13 is input to the microprocessor 50. Then, the microprocessor 50 performs the control of comparison, operation processing, decryption, determination, etc. of the GPS signal, the vehicle information signal, the command code information signal, the inquiry request information signal, and the like.

The microprocessor 50 is connected with a RAM 14 for storing various kinds of information and a ROM 15 for storing a program for predetermined signal processing. The microprocessor 50 is further connected to the microprocessor 50. An input switch unit for inputting an information signal with an inquiry request number to the LCD module 16 and the microprocessor 50 for interpreting data stored in the RAM 14 and displaying a command code. Key pad) 17 and the input / output control unit 18 are connected to each other.

In addition, a serial / parallel converter 19 for converting signals of corresponding GPS information, vehicle information and inquiry request information output from the microprocessor 50 and signals of command code information input from the modem 20 into serial or parallel, etc. And a modem 20 for modulating the information signal output from the serial / parallel converter 19 and demodulating the information signal input from the radio 1.

In addition, the modem 20 and the radio 1 are combined to input and output various types of information. The signal transmitted through the antenna of the radio 1 is a main station apparatus 200 in a specific designated band among HF, VHF, and UHF. Spatially propagated to the antenna of the transceiver 2 in conjunction with

On the other hand, the main station device 200 coupled to the radio 2 is configured by connecting the main computer 60, the level converter 22 and the demodulator 21, of the radio (1) (2) Modulation and demodulation and level conversion of the transmission and reception information, and a CRT (Cathopde Ray Tube) 62 is connected to the main computer 60 to display a map (MAP) and a menu (Menu).

Hereinafter, the operation state and the effect of the present invention configured as described above are as follows.

In FIG. 1, when each GPS signal propagated from a plurality of satellites is received by the GSP receiver 11 of the terminal device section 100 configured as a vehicle terminal system, the received GPS signal is converted into a standard TTL by the level converter 12. In FIG. After the level conversion, the serial / parallel data conversion unit 13 converts the digital parallel signal into the microprocessor 50.

The GPS signal is a signal propagated from a plurality of satellites (most suitably three), which includes time information propagated from the satellite. The arrival time required for radio waves to reach the vehicle from each of the plurality of satellites is recalled due to the difference in distance between the vehicle and each satellite, and the GPS signal arrival time from each satellite preset for the reference coordinate corresponding to the specific position. Comparing the time of arrival of the GPS signal from each satellite received at the position of the specific vehicle, the coordinate value of the current characteristic vehicle can be calculated.

That is, the microprocessor 50 reads the current vehicle position by comparing and calculating the arrival times of the plurality of GPS signals with the arrival times for the reference coordinates, respectively. The information on the position of the vehicle thus read is sent to the serial / parallel converter 19 like other information to be transmitted, that is, the ID number of the vehicle, and the serial / parallel converter 19 performs the conversion process of the parallel-serial data. Execution outputs the converted signal to the modem 20.

After the FSK (frequency shifting) modulation of the modem 20 is inputted to the MFC AMP of the transceiver 1, the low pass filtering is performed by a low pass filter (LPF), and then each driver and power amplifier It is modulated and amplified by (Power) and transmits various information signals through an antenna switch (ANT SW).

The transmitted signal is spatially propagated by being carried on a carrier having a specific frequency band (HF, VHF, UHF) in a wireless manner, and the spatially propagated signal is an antenna receiver of the radio module 2 coupled to the main station device 200 ( ANT SW) is amplified, filtered, and detected through a radio frequency (RF) amplifier, a frequency modulator, a detector, and an audio amplifier, and then is input to the modulator 21 of the main station apparatus 200.

The demodulator 21 of the main station apparatus 200 demodulates the signal input from the radio 2 to the level converter 22, and the level converter 22 converts the level of the input demodulation signal to the main computer. The main computer 60 reads the input signal and displays various information of the vehicle on the screen of the CRT 62.

That is, the main computer 60 is programmed such that the MAP is displayed by the execution of the software, and the position of the current vehicle according to the reading of the signal received through the radio 2 on the CRT 62 screen. And the number of the vehicle is displayed. In addition, the main computer 60 includes navigation functions such as a hotel, a public office building, a gas station, and the like for the special purpose of police crime prevention, accident records, and inquiry functions in a map of the CRT 62 screen. I can display it.

On the other hand, various information including the command code (data signal) from the main computer 60 is level-converted by the level converter 22 and then modulated by the demodulator 21 to preemphasis the radio 2. ) Inputted to the AMP and filtered through the low pass filter (LPF), modulated and amplified by each driver and power amplifier, and transmitted through the antenna switch (ANT SW) and the antenna do.

When the transmitted signal is spatially propagated by radio waves and input to the antenna receiver (ANT SW) of the radio module 1 coupled to the terminal device unit 100, the input signal is filtered, amplified and passed through an RF amplifier. The signal detected and demodulated by the modem 20 and demodulated by the modem 20 are converted in parallel in the serial / parallel converter 19, and then the instruction code data is stored in the RAM 14 and the microprocessor 50 By interpreting the command code by the display to be displayed on the LCD module (16).

Meanwhile, an input switch unit (Key Pad) 17 is operated so that an inquiry request number (for example, a resident registration number or a vehicle number) is passed through the input / output control unit 18 with a DTMF (Dual-Tone Mutifrequency: 2 frequency) signal and a data signal. When input to the microprocessor 50, the microprocessor 50 executes a signal processing process based on the program contents of the ROM 15 and then through the serial / parallel converter 19 and the modem 20. A signal is transmitted to the antenna of the transceiver 1 of the vehicle apparatus.

At this time, the inquiry request signal transmitted from the antenna of the radio 1 is executed by the signal processing process as described above in the radio 2 of the main system, and the modulator 21 and the level converter 21 of the main station apparatus 200 are executed. 22), the main computer 60 interprets and processes the inquiry request signal and displays the result on the menu board on the screen of the CRT 62. The result is the same as that of the transmission process. Send to 100.

On the other hand, when the voice and the data switch switch unit (not shown) of the main computer 60 is automatically selected as the voice switch, the voice is input to the MIC AMP of the radio 2 via a microphone. After the pre-emphasis, modulation and amplification process, it is transmitted to the antenna, and the transmitted signal is received by the transceiver (1) antenna on the vehicle terminal side, and the received signal is RF amplified, mixed, intermediate frequency amplified and detected and the audio signal Is output through the speaker in the transceiver 1 as follows. The voice and data conversion switch of the main computer is configured to switch automatically by determining whether it is voice or data by hardware and software, and is designed to be used only by the radio itself or by the car phone itself by a draw-in and draw-out method.

Therefore, the voice transceiving vehicle identification system using the GPS and the radio of the present invention can transmit various information by interfacing with the terminal and the main station of the vehicle without changing external or internal circuits such as a conventional radio or a car phone. The device has high reliability by adding data transmission / receiving function and wireless communication function of vehicle mover as well as setting function by software and diverter function by hardware, and the diverter circuit is included in the RF circuit part of the radio by fading. It prevents signal clutter and maintains the accuracy of reception.

As described above, according to the present invention, the wireless communication and navigation function, the identity inquiry function and the response function can be performed when the police car is installed by interfacing with the communication equipment such as the radio or the car phone mounted on the existing vehicle. The current location of each car is displayed on the map, so that the exact location can be determined.

Therefore, various information can be quickly and accurately transmitted and received between the vehicle and the main station device unit, and the current location and the vehicle number of the vehicle can be accurately determined. In particular, when the present invention is applied to a police car, the current positions of all police vehicles are simultaneously maintained. In the event of an emergency, it is possible to quickly inject a nearby vehicle.In addition, the central control department provides information such as identification of the escape vehicle quickly while constantly monitoring the direction and location of the escape vehicle. There are advantages such as being able to.

Claims (1)

A main system including a vehicle apparatus including a first radio for transmitting and receiving voice and data and a terminal unit connected thereto, and a main station apparatus connected to the second radio for transmitting and receiving voice and data; The terminal unit of the vehicle device stores a GPS signal receiving means, a program and input / output data for receiving a Global Positioning System (GPS) signal transmitted from a satellite and converting it into a parallel TTL level signal. And an input means for inputting a RAM and an inquiry request number, and comparing and calculating the received GPS signal with reference to programs and data of the ROM and RAM to obtain a current position of the vehicle, and the vehicle position information according to the inquiry request number and A microcomputer outputs a display signal according to an input command code signal, an LCD module for displaying a command code according to a display signal output from the microcomputer, and outputs the vehicle position information and inquiry request code to the first radio. And the command command code signal inputted from the first radio. It comprises an input and output means for outputting to the computer a croissant; The first radio is configured to wirelessly receive a first voice input through its own microphone and the plurality of radio transmissions of the terminal unit and wirelessly transmit a signal of the second radio; The second radio is configured to wirelessly transmit a second voice input through its own microphone and output information of the main station apparatus, and wirelessly receive a transmission signal of the first radio; The main station apparatus includes a modulator for modulating and demodulating a signal input and output to wirelessly transmit and receive information to and from the second radio, and converts a signal input from the modulator to a TTL level signal and converts a TTL level output signal of the main computer to the TLC level output signal. A level converter converting and outputting a signal in a modulator, a display unit consisting of a water tube (CRT), and a signal displaying a map are output to the display unit, and the information inputted from the level converter is interpreted to be specified on the map. A main computer for displaying the current position of the vehicle, the allocation code and the inquiry request information, and outputting a command code to the level converter; Voice and data transmission and reception vehicle identification system using the GPS and the radio to selectively transmit and receive information including the data on the current position of the vehicle according to the GPS signal between the vehicle device and the main system.