KR20010104897A - apparatus and method for transmitting and receiving data using vessel automatic identification system - Google Patents

Abstract

The present invention is provided with a device capable of wirelessly transmitting and receiving data between the ship-ship, ship-land control station, so that the safety of maritime traffic by smoothly exchanging information such as the specification, location, course, speed, navigation status of the ship The present invention relates to a data transmission / reception control apparatus for a ship automatic identification system and a method thereof, wherein the present invention loads state information of a ship system and then analyzes it to check the state of the system, and checks the state of the system. In case of abnormality, an alarm is generated, and if the system is normal, it collects data such as position and speed, analyzes the collected data, composes the transmission data based on the analysis result, encodes the transmission data, and transmits it as a wireless signal. do. In addition, it loads the ship's system status information and analyzes it to check the system's status, and if any abnormality occurs as a result of checking the system's status, an alarm is triggered. It wirelessly receives, decodes the received information, analyzes the decoded information, displays the analyzed data, and transmits it to a computer.

Description

Apparatus and method for transmitting and receiving data using vessel automatic identification system}

The present invention relates to an apparatus for transmitting and receiving data for automatic identification system for ships and a method thereof, and in particular, having a device capable of transmitting and receiving data wirelessly between a ship, a ship, and a ship-land control center, The present invention relates to a data transmission / reception control apparatus for a ship automatic identification system and a method for promoting marine traffic safety by facilitating exchange of information such as speed and navigation status.

In general, global maritime distress and safety system (GMDSS) enables distress communication to be promptly delivered to search and rescue agencies through land and satellite as well as ships in close proximity to ships in the event of a ship accident. Maritime Distress And Safety System is being implemented.

Referring to Figure 1 attached to a method for identifying the position of the vessel in the conventional land control station based on such GMDSS as follows.

The vessel 10 wishing to enter the port reports a negative voice to the land control station 40 when it reaches a certain position. That is, the voice signal is transmitted through the GMDSS VHF, and the land control station 40 receives the voice signal through the VHF wireless antenna 20 and then listens to the voice transmitted from the ship 10 through a signal processing process. Of course, the voice transmitted from the land control station 40 is transmitted in the reverse order of the known paths, that is, the land control station 40, the VHF radio antenna 20, the ship 10 in order to the land control station ( Listen to the voice from 40).

At this time, in the reporting process, the ship 10 notifies the land control station 40 of the ship's position and navigation information.

On the other hand, the land control station 40 uses the radar 30 (RADER) as another method for identifying the ship position. Here, the radar 30 can be traced only to ships within a 50 km range from its position.

However, the conventional vessel position determining method as described above has a problem that it is difficult to identify the exact position of the vessel when reporting the vessel in default or false reporting, since the position of the vessel is made of voice. If it is not discernible, various marine accidents were caused.

In addition, when tracking the ship position using the radar, since the tracking range is usually within the range of 50 km from its own position (installation position of the radar), if the radar communication range is exceeded, there is a disadvantage that tracking is impossible.

Therefore, the present invention has been proposed to solve all the problems arising in the method of identifying the position of the vessel in the conventional land control station as described above,

An object of the present invention is to provide a device capable of wirelessly transmitting and receiving data between a ship-ship and a ship-land control station, so that information on the ship's specification, position, course, speed, navigation status, and the like can be smoothly performed. The present invention provides a data transmission / reception control apparatus for a ship automatic identification system and a method thereof for promoting traffic safety.

The apparatus for transmitting and receiving data for an automatic ship identification system according to the present invention for achieving the above object,

An external device configured to measure the speed of the current vessel, detect an operating state, and transmit a speed value and an operating state value obtained as a result of the execution to a data transmission and reception control unit;

A computer which is in charge of remote control for data transmission and reception with other ships and displays the current ship status information and other ship status information received through communication on a monitor;

The computer performs a communication interface with the external device and the computer, wirelessly transmits the collected position and speed information of the vessel and ship state information, and displays the position and state information of the vessel wirelessly transmitted from another vessel. Characterized in that it consists of a data transmission and reception control unit for transmitting to.

In the above, the data transmission and reception control unit,

A data interface unit for interfacing data with the external device and a computer through an RS-232 interface, a GPS receiver for processing ship position information received through a GPS antenna, ship position information acquired from the GPS receiver, and A control unit for controlling the transmission of the speed and the ship state information obtained through the data interface unit and controlling the display control of information received from another ship and the transmission to the computer; and the communication information according to the display control of the control unit. Display and key input unit for transmitting the user's command to the control unit, and modulate the information of the vessel output from the control unit into an RF signal and send it to another vessel or land control station, Receive the transmitted wireless signal After W demodulation characterized by consisting of a RF signal processor, which passes to the control unit.

In the above, the control unit,

A central processing unit (CPU) that controls memory access, local display data generation, interface control with an external device, and RF signal transmission of data acquired through an interface with an external device; And a memory for storing the data transmitted from the land control station, and a real time clock generator for generating a real time clock and providing the CPU and the real time clock to a required portion.

In addition, the RF signal processing unit,

Modulating the data output from the control unit into an RF signal, and the received RF signal is demodulated to the original data, and amplified the RF signal modulated by the modem and then delivered to the RF antenna to transmit the radio signal The signal received by the RF antenna is characterized in that it is configured as an RF transceiver for transmitting the frequency down-converted to the modem.

Data transmission and reception control method for automatic vessel identification system according to the present invention for achieving the above object,

After loading the ship's state information, it analyzes it and checks the state of the system, and if an abnormality occurs as a result of checking the state of the system, an alarm is generated. Collecting, analyzing the collected data, constructing transmission data based on the analysis result, encoding and transmitting the transmission data as a wireless signal, and returning to the first step if the transmission state is normal. A data transmission process for transmitting the information of the ship wirelessly;

Loading the ship's state information and analyzing it to check the state of the system, and if an abnormality occurs as a result of checking the state of the system, an alarm is generated, and if the system is normal, information of other ships or land control stations Receiving wirelessly, decoding the received information, analyzing the decoded information, displaying the analyzed data and transmitting the analyzed data to a computer, and checking the reception state after transmission of the received information. If it is normal, the step of returning to the first step is characterized by consisting of a data receiving process for receiving information of another ship or land control station.

1 is a schematic configuration diagram of a vessel positioning system using a conventional voice,

2 is a block diagram showing the configuration of a data transmission and reception control device for automatic vessel identification system according to the present invention,

3 is a block diagram showing an embodiment of the control device and the RF device of FIG.

4 is a flowchart illustrating a data transmission and reception control method for an automatic ship identification system according to the present invention. FIG. 4A is a flowchart illustrating a data transmission control method, and FIG. 4B is a flowchart illustrating a data reception control method.

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

100 ..... External Devices

200 ..... Computer

300 ..... Data Transmission Control Unit

310 ..... data interface

320 ..... GPS Receiver

330 ..... Controls

340 ..... Display and key input

350 ..... RF signal processor

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

Example 1

2 is a block diagram showing the overall configuration of a data transmission and reception apparatus for a ship automatic identification system according to the present invention.

Here, reference numeral 100 denotes an external device that performs speed measurement and operation state detection of the current vessel, and transmits the speed value and operation state value obtained as a result of the execution to the data transmission / reception control unit 300, and reference numeral 200 denotes another Represents a computer that is in charge of remote control for data transmission and reception with a ship or a land control station, and displays the current ship status information and information of another ship or land control station received through communication on a monitor.

In addition, the reference numeral 300 performs a communication interface with the external device 100 and the computer 200, and wirelessly transmits the position and speed information and the ship status information of the combined ship, and wirelessly from another ship or land control station It shows the data transmission and reception control unit to display the position and status information of the ship sent to the computer 200.

In the above, the data transmission and reception control unit 300,

Data interface unit 310 for interfacing data with the external device 100 and the computer 200 through the RS-232 interface, GPS receiver 320 for processing the position information of the vessel received through the GPS antenna 360 And wireless transmission of the ship's position information acquired from the GPS receiver 320 and the speed and ship's state information obtained through the data interface unit 310, and received from another ship or land control station. A control unit 330 for controlling display of information and data transmission to the computer 300, a display for displaying communication information to a user according to the display control of the control unit 330, and transmitting a user's command to the control unit And a key input unit 340 and the vessel information output from the control unit 330 into an RF signal and transmitted to another vessel or land control station. It is composed of an RF signal processing unit 350 for sending out, receiving and demodulating a radio signal transmitted from another ship or a land control station and then transmitting the demodulated signal to the control unit 330.

In addition, the control unit 330 as shown in Figure 3, the central processing for controlling the memory access, the generation of local display data, the interface control with the external device, the RF signal transmission of the data obtained through the interface with the external device A device (CPU) 331, a memory 332 for temporarily storing the acquired data or storing data transmitted from another ship or land control station, and generating a real time clock to generate the CPU 331. ) And a real time clock generator 333 which provides a real time clock to a required part.

In addition, as shown in FIG. 3, the RF signal processor 350 modulates the data output from the controller 330 into an RF signal and demodulates the received RF signal into original data. And amplifying the RF signal modulated by the modem 351, and then transmitting the power to the RF antenna 370 to transmit the wireless signal. The signal received by the RF antenna 370 is frequency down-converted. It consists of an RF transceiver 352 to deliver to the modem 351.

In the apparatus for transmitting and receiving data for the automatic ship identification system according to the present invention configured as described above, first, the administrator of the computer 200 requests an interface of information transmission and reception information on the current position, speed, and operation state of the ship.

The request data is transmitted to the control unit 330 through the data interface unit 310 in the data transmission / reception control unit 300, and the control unit 330 recognizes this and transmits a signal to each measurement device to transmit the measured information. do.

The signal requesting the transmission of the measurement information is transmitted to the external device 100 through the data interface unit 310, and the external device 100 receives the speed of the current ship through a speed measurement device, a state detection device, or the like. The system state and the like are detected and transmitted to the controller 330 through the data interface 310.

In addition, the GPS receiver 320 processes the position information and the time information transmitted from the satellite received by the GPS antenna 360 and transmits it to the controller 330.

The control unit 330 collects each measurement information and state information in the central processing unit 331 and stores them in the memory 332, and analyzes the stored information to check whether there is an error. If a problem occurs in the system as a result of this check, although not shown in the drawing, an alarm unit is driven to alert an abnormal state of the system. If the check result is normal, the analyzed data is encoded using the TDMA method, and then transmitted to the display and key input unit 340 to display the collected current ship state information.

In addition, the current time information obtained from the real-time clock generator 333 is added to the collected current ship state information, and then transferred to the RF signal processor 350 to wirelessly transmit the current ship position and state information to another ship or a land control station. Is transmitted, and the information of the current ship to the computer 200 through the data interface 310 to allow the administrator to clearly recognize the state of the ship.

Meanwhile, as illustrated in FIG. 3, the RF signal processing unit 350 modulates the data encoded by the TDMA method transmitted from the control unit 330 in the modem 351 into an RF signal, and then in the RF transceiver 352. After power amplifying the modulated RF signal is transmitted over the air through the RF antenna 370.

This RF signal is wirelessly received by other ships or land control stations.

Meanwhile, an RF signal transmitted from another ship or land control station is received through the RF antenna 370 and then transmitted to the RF signal processor 350, and the RF transceiver 352 in the RF signal processor 350 receives the received RF. The signal is frequency downconverted and converted to an intermediate frequency. The intermediate frequency signal thus converted is demodulated to original data in the modem 351 and then transmitted to the controller 330.

The controller 330 transmits the received data to the display and the key input unit 340 so that the data transmitted from another ship or land control station is displayed.

In addition, by transmitting to the computer 200 through the data interface unit 330, the administrator can easily determine the position and status of other vessels.

In addition, it is easy to determine the current state of the vessel.

The apparatus for transmitting / receiving data for the automatic vessel identification system according to the present invention described above has only described a process of wirelessly performing data with other vessels or land control stations wirelessly, and in addition to the above functions, the apparatus for transmitting and receiving data according to the present invention is added. Many features are implicit.

For example, the memory 332 includes O / S and application programs in addition to the data storage function generated by ROM / RAM / Epirom, etc., and unique ID and changeable information of each ship are also recorded. It makes identification easier.

In addition, a maintenance and diagnostic interface device is added, and since each ship is assigned a unique ID, it supports an interface for inputting ID information and system diagnosis, and the communication standard follows the RS-232 method.

In addition, a power supply for supplying power and an EMI protection device for shielding electromagnetic waves are added to supply system operation power and to remove various noises injected from the ship's power to protect the device and to prevent malfunction.

Example 2

4 is a flowchart illustrating a data transmission and reception control method for an automatic ship identification system according to the present invention.

First, FIG. 4A is a flowchart illustrating a data transmission control method, in which the state information of the ship system is loaded and analyzed to check the state of the system (S101 to S102), and the result of checking the state of the system is abnormal. In case of occurrence, the step of generating an alarm (S103), and if the error is corrected after the alarm occurs, returning to step S101 (S104), and collecting the data such as position and speed when the system is normal (S105). And analyzing the collected data and constructing transmission data based on the analysis result (S106 to S107), encoding the transmission data and transmitting the result in a wireless signal, and if the transmission state is normal, proceed to the first step. It consists of a step (S108 ~ S110) to move.

In the data transmission control method for automatic ship identification system according to the present invention, the state information of the system is first loaded in step S101.

In addition, by checking the state information of the system loaded in step S102 to check whether the state of the system is normal, if the system is abnormal as a result of the check, an alarm is generated in step S103.

When an alarm occurs like this, the administrator quickly repairs the error part to maintain normal function.

In addition, in step S104, it is checked whether the abnormality has been corrected, and if it is not corrected, the data transmission process is terminated, and when the error is solved, the process returns to the step S101.

On the other hand, when the system is operating normally as a result of checking the state of the system, the external data of the ship is collected in step S105. The external data is ship position information, ship speed, and so on.

When the ship information is obtained in this way, the data acquired in step S106 are analyzed and the transmission frequency is determined.

Next, data to be transmitted is created in step S107, TDMA encoding is performed in step S108, and ship information is modulated into an RF signal in step S109 and transmitted wirelessly.

Thereafter, in step S110, the transmission state is checked, and if the transmission state is abnormal, go to step S103 to generate an alarm indicating that a transmission error has occurred, otherwise, if the transmission is normal, go to step S105 and again to the external data of the ship Collect it.

4B is a flowchart illustrating a data reception control method according to the present invention.

As shown therein, after loading the state information of the ship system and analyzing it to check the state of the system (S201 ~ S202), and if an error occurs as a result of checking the state of the system to generate an alarm (S203), checking whether the error is corrected after the alarm is generated (S204), and if the system is normal as a result of checking the state of the system, wirelessly receiving information of another ship or land control station (S205); Decoding the received information (S206), Analyzing the decoded information and displaying the analyzed data and transmitting to the computer (S207 ~ S208), and the receiving state after the transmission of the received information If it is normal to check and go to the first step (S209).

In the data reception control method according to the present invention, the state information of the system is first loaded in step S201, and the state information of the system loaded in step S202 is analyzed to check whether the system is normal.

If an abnormality has occurred in the system as a result of this check, an alarm is issued in step S203, and it is checked in step S204 whether the error is corrected. If the error is not corrected as a result of the check, the data receiving operation is terminated. Otherwise, if the error is corrected, the process returns to the first step S101.

In addition, as a result of retrieving the state information of the system, if the system is normal, data received by the other ship or the land control station wirelessly is wirelessly received in step S205.

In step S206, the received data is TDMA decoded, and in step S207, the decoded data is analyzed and converted.

Thereafter, the data received from the data interface device is transmitted to the computer in step S208. In step S209, it is determined whether the reception state is normal. As a result of this determination, if the reception state is abnormal, the process moves to step S203 to warn that an abnormality has occurred in reception. In contrast, if the reception state is normal, the process proceeds to step S205 and the subsequent steps are repeatedly performed.

According to the present invention described above, "automatic data transmission and reception control apparatus and method for ship identification system", based on the wireless data transmission system established between the ship, the ship, the ship-land control station, the specification, position, course, speed of the ship In addition to exchanging information, such as sailing status, it is possible to accurately determine the position and condition of the ship at the land control station, it is possible to prevent maritime traffic accidents in advance has the advantage of promoting maritime traffic safety.

Claims (5)

In ship automatic identification system, An external device configured to measure the speed of the current vessel, detect an operating state, and transmit a speed value and an operating state value obtained as a result of the execution to a data transmission and reception control unit; A computer which is in charge of remote control for data transmission and reception with other ships and displays the current ship status information and other ship status information received through communication on a monitor; The computer performs a communication interface with the external device and the computer, wirelessly transmits the collected position and speed information of the vessel and ship state information, and displays the position and state information of the vessel wirelessly transmitted from another vessel. Data transmission and reception control device for the automatic vessel identification system, characterized in that it comprises a data transmission and reception control unit for transmitting to. The method of claim 1, wherein the data transmission and reception control unit, A data interface unit for interfacing data with the external device and a computer through an RS-232 interface, a GPS receiver for processing ship position information received through a GPS antenna, ship position information acquired from the GPS receiver, and A control unit for controlling the transmission of the speed and the ship state information obtained through the data interface unit and controlling the display control of information received from another ship and the transmission to the computer; and the communication information according to the display control of the control unit. Display and key input unit for transmitting the user's command to the control unit, and modulate the information of the vessel output from the control unit into an RF signal and send it to another vessel or land control station, Receive the transmitted wireless signal Over the demodulated data after the transmission and reception control apparatus for a ship automatic identification system according to claim consisting of the RF signal processing unit that transmitted to the control unit. The method of claim 2, wherein the control unit, A central processing unit (CPU) that controls memory access, local display data generation, interface control with an external device, and RF signal transmission of data acquired through an interface with an external device; For the automatic identification system for ships, comprising a memory for storing the data transmitted from the land control station and a real time clock generator to generate a real time clock and provide the real time clock with the CPU. Data transmission and reception control device. The method of claim 2, wherein the RF signal processing unit, Modulating the data output from the control unit into an RF signal, and the received RF signal is demodulated to the original data, and amplified the RF signal modulated by the modem and then delivered to the RF antenna to transmit the radio signal And a signal received by the RF antenna is configured as an RF transceiver for frequency down-converting and transmitting the signal to the modem. In the ship automatic identification method, After loading the ship's state information, it analyzes it and checks the state of the system, and if an abnormality occurs as a result of checking the state of the system, an alarm is generated. Collecting, analyzing the collected data, constructing transmission data based on the analysis result, encoding and transmitting the transmission data as a wireless signal, and returning to the first step if the transmission state is normal. A data transmission process for transmitting the information of the ship wirelessly; Loading the ship's state information and analyzing it to check the state of the system, and if an abnormality occurs as a result of checking the state of the system, an alarm is generated, and if the system is normal, information of other ships or land control stations Receiving wirelessly, decoding the received information, analyzing the decoded information, displaying the analyzed data and transmitting the analyzed data to a computer, and checking the reception state after transmission of the received information. If it is normal, the method comprising the step of returning to the first step comprises a data receiving process for receiving information of another ship or land control station.