KR20100055623A - A safety management equipment by the location and the trace deduction of coast vessel using microwave buoy and method thereof - Google Patents

Abstract

PURPOSE: A safety management equipment by the location and the trace deduction of a coast vessel using a microwave buoy and a method thereof are provided to prevent an accident by fining out a small ship in real time through a buoy and a triangular surveying. CONSTITUTION: A ballast lamp deducting apparatus comprises a communications unit, a communications module and a plurality of buoy(100,110,120). The communications unit is included in the ship(300). The communications module communicates with a vessel traffic service center(200). A plurality of buoys is floated a specific coordinate of a coast. The communications module is comprised of a controller, a wireless communications unit, an operation unit, and a memory unit. The controller is comprised of a microprocess or CPU. The wireless communications unit communicates with the vessel traffic service center according to a control signal of the controller. An operation unit computes the signal value transmitted from the wireless communications unit.

Description

Safety control system and method by estimating the position and trajectory of coastal ship using buoy {A SAFETY MANAGEMENT EQUIPMENT BY THE LOCATION AND THE TRACE DEDUCTION OF COAST VESSEL USING MICROWAVE BUOY AND METHOD THEREOF}

The present invention relates to a safety control device and a method for estimating the position and trajectory of a coastal ship using a buoy, and more specifically, a safer coastal navigator without location information using expensive GPS satellites using a buoy and triangulation The present invention relates to a safety control device and a method thereof for estimating the position and trajectory of a coastal ship using an improved buoy.

In general, AIS (Automatic Vessel Identification System) provides internationally defined information regarding ship name, type, location information, speed, direction, and navigation in order to prevent collision and sea traffic management in ports and coasts. It is a device that transmits / receives periodically and automatically exchanges information and related data with onshore and other ships through a microwave frequency (HHF) line.

In addition, the electronic chart is a digital chart, which is an electronic navigation equipment used for various vessels through the digitization of the paper chart, and is used to protect the navigational safety of the ship and the marine environment.

Conventionally, ships have been controlled using the AIS and the electronic chart as described above. For example, the AIS is a form in which the position of a ship equipped with an AIS in a range of 100 miles from the base station is indicated.

However, such AIS is a network managed by the state, and since the base stations are installed in specific regions, there are only a few nationally.

In addition, as shown in the example of Figure 1, in the conventional method using the AIS, for example, the ship 2 receives its location information from the GPS satellite 3, this is the AIS (4) mounted on the ship 2 Through the VHF communication link with the port maritime traffic control station (1) through the ship to enable safe and smooth navigation of the vessel (2).

However, the use of GPS satellites 3 requires a high cost, and not only does not allow all ships to install AIS 4, but even if the AIS 4 is equipped, the equipment is of no use unless the operator turns it on. There was a disadvantage of becoming.

In particular, since the AIS is expensive equipment, it is mandatory to be mounted only on ships and passenger ships of a predetermined size, and other vessels, such as small fishing boats, cannot carry AIS, so that the ship's position tracking and distress prevention can be efficiently operated. There has been a problem that cannot be done.

In related technology, Patent Application No. 2005-0021015 'Automatic Ship Identification System with Electronic Chart', Patent Application No. 2006-0105584 'Ship Position Control Method Using TRS with AIS and GPS', Patent Application No. 2007-0025193 'TRS and AIS interlocking vessel position information providing system', but all of them have the same disadvantages described above.

In addition, research on the recognition method using radar is being actively conducted. However, when the weather is bad or the wave is high, the reception sensitivity is deteriorated, and the detection performance is greatly influenced by the size of the relative line. Existing materials cannot be detected, and target swapping occurs when an object approaches on a radar, and a lot of improvement is required.

The present invention has been created in view of the above-mentioned problems in the prior art, and solves this problem. Location information of the ship during coastal navigation of a small ship using buoys and triangulation without using expensive GPS satellites The main solution is to provide a safety control device and method by estimating the position and trajectory of coastal ships using buoys to prevent ship accidents and to enable safer voyages. There is a problem.

The present invention provides a means for achieving the above object, the communication unit provided in the vessel to be able to communicate with the maritime traffic control station that can be coordinated through the electronic chart; A plurality of buoys provided with a communication module capable of communicating with the port maritime traffic control station and floating on specific coordinates of the coast; The communication module includes a control unit consisting of a microprocessor or a CPU; A wireless communication unit communicating with the port maritime traffic control station according to a control signal of the control unit; A calculation unit calculating a buoy and distance information between ships by calculating a signal value transmitted and received from the wireless communication unit according to a control signal of the controller; According to the control signal of the control unit provides a safety control device for estimating the position and trajectory of the coastal ship using a buoy characterized in that it comprises a memory unit for storing the operation value output from the operation unit.

At this time, the wireless communication unit is also characterized by the high-frequency wireless communication with the maritime traffic control station to recognize the position of the vessel through the high frequency.

In addition, the communication module is characterized in that the CCTV or CC camera is further installed to transmit the image information taken to the port maritime traffic control station.

In addition, each buoy transmits an ultra-high frequency signal from the omnidirectional antenna to obtain the position information of the ship (measures the time when the radio wave is received from the target vessel in each buoy with resolution and the time difference until the radio wave arrives) It is also characterized by sending the information to the maritime traffic control station, collecting the information received from each buoy at the maritime traffic control station, and calculating the exact coordinates of the ship by triangulation.

In addition, the present invention is a means for achieving the above-described problem, the wireless communication unit provided in a plurality of buoys installed on the specific coordinates of the sea and communicating with the port maritime traffic control station; Selecting, from the port maritime traffic control station, the top three buoys having strong signal strength based on the vessel among the buoys communicated through the communication step; A control unit of each buoy selected after the selecting step controls the signal transmission time of the radio signal communicated through the wireless communication unit to calculate a distance between each buoy and the ship based on the signal transmission time detected by the calculation unit; When the distance between each buoy and the ship is calculated through the distance calculation step, the maritime traffic controller always draws three circles with the radius calculated from the electronic chart and finds the center coordinate of the intersection. It also provides a safety control method by estimating the position and trajectory of the coastal vessel using a buoy characterized in that it comprises a step of determining the position of the vessel.

In this case, the distance calculation step is characterized in that the calculation unit measures the time at which the radio wave is received from the target vessel with resolution and calculates the distance from the buoy to the vessel using the time difference until the radio wave arrives. have.

In addition, after the vessel positioning step, the port maritime traffic control station is characterized in that the step of receiving the image information of the sea situation from the selected buoy is further performed.

In addition, the video information is characterized in that the information is captured by the CCTV or CC camera provided in the buoy, stored in the memory unit provided in the buoy.

In addition, the port maritime traffic control station for the vessel is detected through the image information is characterized in that it further comprises the step of warning through a buoy.

According to the present invention, the position information of a small ship can be automatically confirmed in real time without using GPS satellites, which are expensive equipment, so that the coastal navigation can be more safely obtained, and the cost of positioning the vessel can be reduced. can do.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

Figure 2 is an exemplary schematic diagram for explaining the concept of the safety control device according to the present invention, Figure 3 is a conceptual diagram for explaining the operation of the safety control device according to the present invention, Figure 4 is a safety control according to the present invention Fig. 5 is a block diagram of the communication module in the buoy constituting the apparatus, and Fig. 5 is a flowchart for explaining the method according to the present invention.

As shown in FIG. 2, the safety control apparatus according to the present invention requires at least three buoys, namely, first, second and third buoys 100, 110 and 120, in order to use a triangulation technique.

In addition, FIG. 2 merely illustrates the vessel 300 separately for convenience of description, and in fact, the relationship thereof is predicted by the coordinates of the vessel 300 in the form shown in FIG. 3.

At this time, the first, second, third buoy (100, 110, 120) is a reference point for confirming the position of the ship 300 as the coordinate value is designated from the time of installation.

Here, the vessel 300 is in a state capable of communicating through a basic communication system, that is, a VHF channel according to IMO regulations.

In addition, the first, second, third buoy (100, 110, 120) should be equipped with a separate high-frequency communication channel for communication with the port maritime traffic control station 200, for this purpose the wireless communication unit (A) as shown in FIG. The wireless communication unit A is controlled by the control unit C.

In this case, the control unit C may be a microprocessor or a CPU embedded in a computer, and further includes an operation unit N for distance calculation and communication speed calculation, and a memory unit for storing information if necessary. It consists of a structure containing (M) further.

The wireless communication unit (A), the control unit (C), the calculation unit (N) and the memory unit (M) are provided in the same configuration in all of the first, second, third buoys (100, 110, 120).

In addition, the wireless communication unit (A) transmits and receives information via a separate communication channel for high-frequency communication with the port maritime traffic control station 200 as a high-frequency wireless communication module, the maritime traffic control station 200 and the vessel 300 Between will communicate with the existing VHF communication method.

In particular, the wireless communication unit (A) is preferably to transmit and receive the ultra-high frequency signal in all directions through the omni-directional antenna (R).

That is, the communication between the maritime traffic control station 200 and the vessel 300 uses VHF communication so that no additional cost is incurred.

In addition, the first, second, third buoy (100, 110, 120) is configured to communicate with each other through the same communication channel, which is away from any one buoy due to navigation (movement) of the ship 300 to another buoy Is for signal processing at that time.

In addition, the first, second, third buoys (100, 110, 120) by installing a CCTV or CC camera to the port maritime traffic control station 200 by transmitting and receiving at high frequency in the maritime situation around the buoy in the port maritime traffic control station 200, In particular, it is more preferable to configure the coastal state to monitor in real time.

In other words, through the communication with the first, second, third buoys (100, 110, 120) equipped with the ultra-high frequency communication module, the maritime traffic control station 200 can detect the position of the vessel 300 without a separate satellite communication, and The CCTV information transmitted to the port maritime traffic control station 200 through the microwave communication link is capable of real-time monitoring of the maritime information, so that if necessary, monitoring and advice, such as notifying the ship 300 or taking a take action, are possible. In addition, accurate coastal information can be obtained through a number of microwave buoys installed at sea.

In particular, in the case of a ship that is not equipped with AIS in difficult weather conditions, the microwave buoy according to the instructions of the Port Maritime Traffic Authority 200 based on information transmitted from a buoy equipped with a microwave communication module that transmits the position of the vessel. You can also guide a safe voyage by alerting you with an alarm.

To this end, the buoy, that is, the first, second, third buoy (100, 110, 120) may further include an alarm for generating an alarm.

In addition, since the ship location tracking according to the present invention uses an ultra-high frequency data link, a large amount of information can be transmitted to a land base station (port maritime traffic control station), and interference with VHF communication mainly used in existing ports is prevented. It can be minimized.

In addition, information required for maritime safety (local weather, fishing and fishing information, fishing net information, etc.) received through microwave buoys may be obtained from local VTS, maritime police station, meteorological office, and notified to the ship by VHF communication. It can be used to support search and rescue operations by recognizing the accident in real time and tracking the past track and position of the accident vessel.

The present invention made up of such a configuration is able to track the position of the ship through the following process.

First, as shown in Figure 3, in order to track the position of the vessel 300 by using a triangulation technique, at least three, that is, the first, second, third buoy (100, 110, 120 with a distance from each other around the vessel 300) ) Is required.

At this time, the selection of the first, second, third buoys (100, 110, 120) is selected from the higher level of the three of the highest sensitivity among the plurality of buoys communicated with the communication unit 310 of the ship 300 in order It is desirable to determine, which will be automatically controlled by the port maritime traffic control station 200.

That is, when three buoys closest to the sailing vessel 300, for example, the first, second, third buoys 100, 110, 120, are selected, the control unit C of each buoy is omnidirectional to recognize the position of the vessel 300. Through the antenna to transmit an ultra-high frequency signal in all directions (S100).

In this case, the first, second, third buoys (100, 110, 120) are always open to the communication channel, if there is a reflected signal from the ship 300 recognizes the ship 300 and then measured the round trip time received the reflected signal (S110, S120).

That is, the measurement of the signal transmission time (T1, T2, T3) is performed by the calculation unit (N) provided in the first, second, third buoys (100, 110, 120), and receives the control signal of the control unit (C) from the round trip time It calculates by checking the time information.

In addition, when the signal transmission time (T1, T2, T3) measurement process is completed, the calculation unit (N) based on the measured signal transmission time (T1, T2, T3) information of each buoy (100, 110, 120) and the vessel 300 The distance is calculated (S130).

The distance calculation process (S130) measures the time from when the transmitted signal reaches the vessel 300 and receives the reflected signal, so that the round trip distance can be obtained by using the propagation speed of the electromagnetic wave at the round trip time. In this way, the distance to the ship 300 can be known.

This operation is performed by the calculation unit N under the control signal of the control unit C, and the calculated value is stored in the memory unit M and used as useful information when necessary.

In this way, when the respective distances from the first, second, third buoys (100, 110, 120) to the ship 300 is calculated, this information is transmitted to the port maritime traffic control station 200 via the high-frequency communication channel through the wireless communication unit (A). The port maritime traffic control station 200 receiving the received traffic is determined as a radius (R1, R2, R3) based on each buoy, that is, the first, second, and third buoys (100, 110, 120) based on the electronic chart. Draw a circle to (S140).

When three circles are drawn on the electronic chart through the process (S140), the intersections generated by these circles are confirmed, and it is assumed that the vessel 300 is located at the center of the intersections or within the intersections. Through the coordinate values on the electronic chart it is possible to check the position of the vessel 300 in real time (S150, S160).

Through this process, when the position of the vessel 300 is confirmed, the port maritime traffic control station 200 can instruct the vessel 300 necessary action.

In addition, the video information transmitted from the CCTV or CC camera of each buoy, that is, the first, second, third buoys (100, 110, 120) can be usefully used for the operation of the ship 300, emergency rescue, evacuation, etc. The information may be stored in the memory unit M and transmitted to the port maritime traffic control station 200 as necessary according to the control signal of the controller C.

By doing so, it is possible to easily track the marine position information of the coastal vessels without using the expensive GPS satellites, thereby making it easier to manage the operation of the coastal vessels.

1 is an exemplary schematic diagram for explaining the concept of a safety control device according to the prior art,

Figure 2 is an exemplary schematic diagram for explaining the concept of the safety control device according to the present invention,

3 is a conceptual view for explaining the operation of the safety control device according to the present invention;

Figure 4 is a block diagram of the communication module in the buoy constituting the safety control device according to the present invention,

5 is a flowchart for explaining a method according to the present invention.

♧ description of the symbols for the main parts of the drawing ♧

100 .... First buoy 110 .... Second buoy

120 .... Part 3 200 .... Port Maritime Traffic Authority

300 .... Ship

Claims (9)

A communication unit provided in the ship so as to be able to communicate with the harbor maritime traffic control station capable of tracking the coordinates through the electronic chart; A plurality of buoys provided with a communication module capable of communicating with the port maritime traffic control station and floating on specific coordinates of the coast; The communication module includes a control unit consisting of a microprocessor or a CPU; A wireless communication unit communicating with the port maritime traffic control station according to a control signal of the control unit; A calculation unit calculating a buoy and distance information between ships by calculating a signal value transmitted and received from the wireless communication unit according to a control signal of the controller; And a memory unit for storing the calculation value outputted from the operation unit according to the control signal of the control unit. The method of claim 1; The wireless communication unit is a safety control device for estimating the position and trajectory of the coastal vessel using a buoy characterized in that the high-frequency radio communication with the port maritime traffic control station. The method of claim 2; The wireless communication unit is a safety control device for estimating the position and trajectory of the coastal ship using a buoy, characterized in that for transmitting and receiving the omnidirectional signal through the omni-directional antenna. The method of claim 1; The communication module is a CCTV or CC camera is further installed, the safety control device by using the buoy to estimate the position and trajectory of the coastal vessels, characterized in that configured to transmit the captured image information to the port maritime traffic control station. The method of claim 1; The calculating unit measures the time until the signal transmitted from the wireless communication unit reaches the ship and receives the reflected signal and calculates the distance from the buoy to the ship using the propagation speed of the electromagnetic wave for the round trip time. Safety control system by estimating the position and trajectory of coastal vessels using a buoy. Communicating with the port maritime traffic control station by a wireless communication unit provided in a plurality of buoys installed on specific coordinates of the sea; Selecting, from the port maritime traffic control station, the top three buoys having strong signal strength based on the vessel among the buoys communicated through the communication step; A control unit of each buoy selected after the selecting step controls to detect a signal transmission time of the radio signal reflected through the wireless communication unit, and calculates a distance between each buoy and the vessel based on the signal transmission time detected by the calculation unit; When the distance between each buoy and the ship is calculated through the distance calculation step, the maritime traffic controller always draws three circles with the radius calculated from the electronic chart and finds the center coordinate of the intersection. Safety control method by estimating the position and trajectory of the coastal vessel using a buoy characterized in that it comprises a step of determining the position of the vessel. The method of claim 5; After the step of positioning the vessel, the port maritime traffic control station receives the image information of the sea situation from the selected buoy to monitor the contents of the position of the coastal vessel using a buoy further characterized in that Safety Control Method through Trajectory Estimation. The method of claim 7; The image information is taken through a CCTV or CC camera provided in the buoy, safety control method by estimating the position and trajectory of the coastal ship using a buoy, characterized in that the information stored in the memory unit provided in the buoy. The method of claim 7; And the port maritime traffic control station alerts the vessel through the buoy for the vessel whose danger is detected through the image information.

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