KR102501277B1 - System for measuring marine wave information using marine navigation and communication equipment of vessel - Google Patents

Abstract

The present invention is a radar unit composed of an X-band radar for radiating short waves to a water plane and an S-band radar for emitting long waves; a speed measurement unit for measuring absolute navigation information; and selectively driving the X-band radar or S-band radar of the radar unit according to the weather information of the sea area around the main ship, receiving the reflected wave signal information from the corresponding sea surface reflected wave to calculate the relative wave information, and calculating the absolute navigation information and the relative wave information. A controller that analyzes information to calculate absolute wave information of wave height, wave direction, and wave period; Including, the radar unit is configured in dual to provide wave information by accurately scanning the sea level regardless of sea weather conditions, , Obtain relative wind direction/speed with an anemometer even if the reception strength of the sea-reflected wave is weak, and obtain absolute wind direction/speed using the vessel speed and route obtained from DGPS and GYRO, and provide accurate wave information (wave height/wave period) by the Beaufort table. Disclosed is a maritime wave information measurement system using ship navigation equipment, which can further improve the reliability of wave information.

Description

Maritime wave information measurement system using ship navigation equipment {SYSTEM FOR MEASURING MARINE WAVE INFORMATION USING MARINE NAVIGATION AND COMMUNICATION EQUIPMENT OF VESSEL}

The present invention relates to a marine wave information measurement system, and more particularly, by configuring a dual radar unit, it is possible to provide wave information by accurately scanning the sea surface state regardless of marine meteorological conditions, and the reception strength of the reflected wave is It relates to a maritime wave information measurement system using ship navigation equipment that can provide accurate wave information by a Beaufort table even if it is weak.

As is well known, the wave information of wave pressure, wave speed, and wave direction at sea is a major factor determining the speed performance of a ship and is directly related to the ship's operating expense (OPEX; Operating Expenditure). To this end, radar is used to measure accurate wave information. are required to do

On the other hand, the wave measurement system using radar has a problem in that it cannot accurately measure waves due to radar scattering and attenuation due to rainfall, snowfall, or fog.

Referring to FIG. 1, a conventional wave measurement system 100 for improving this is a radar 30 that emits a radar transmission wave to the sea surface and receives a radar reflected wave, and a rain reflection component reflected by rain in the radar reflected wave. It includes a measuring device 50 that extracts and sets the sea surface reflection wave using the radar reflection wave and the rain reflection component, and determines the wave using the sea surface reflection wave, but receives the reflected wave when there is no rainfall, and After receiving the rain reflected wave from the case, the rain reflection component and the rain attenuation signal are extracted using the reflected wave and the rain reflected wave, and the wave is determined by compensating for the reflection and attenuation, so that the wave is measured even during rain.

However, although it is theoretically possible to measure waves by receiving reflected waves and rain reflected waves according to whether or not there is rainfall, it is impossible to receive the corresponding reflected wave information according to whether or not there is rain in the same sea area in the same time zone during actual ship operation. The feasibility of implementation is very low.

In addition, it is possible to use a buoy-type wave height meter that is fixed to the seabed and measures the wave height quantitatively, but it is practically impossible to install it in the same area as the test operation sea area (location), and it is impossible to install it, replacing the expensive buoy-type wave height meter. Therefore, a technology that can accurately measure wave information using the ship's own air traffic equipment is required.

Korean Patent Registration No. 1031260 (Blue measuring system and method. 2011.04.19.) Korean Patent Laid-open Publication No. 2008-0093569 (Safe navigation method using wave information according to radar measurement. 2008.10.22)

The technical problem to be achieved by the spirit of the present invention is to measure maritime wave information using ship navigation equipment, which can build an efficient measurement system using the ship's own navigation equipment while accurately measuring wave information regardless of maritime weather conditions. to provide the system.

In order to achieve the above object, the present invention is a radar unit composed of an X-band radar emitting short waves and an S-band radar emitting long waves to a water plane; a speed measurement unit for measuring absolute navigation information; and selectively driving the X-band radar or S-band radar of the radar unit according to the weather information of the sea area around the main ship, receiving the reflected wave signal information from the corresponding sea surface reflected wave to calculate the relative wave information, and calculating the absolute navigation information and the relative wave information. Provides a maritime wave information measurement system using ship navigation equipment, including a control unit that analyzes information to calculate absolute wave information of wave height, wave direction, and wave period.

Here, an anemometer for measuring relative wind speed information of wind direction and wind speed is further included, and the control unit calculates absolute wind speed information by analyzing the absolute navigation information and the relative wind speed information, and calculates the wind speed information corresponding to the wind speed information of the Beaufort table After extracting sea level information and comparing and analyzing it with the absolute wave information, final wave information can be calculated.

In addition, the control unit provides a NMEA interface for receiving the reflected wave signal information, the route, position and absolute speed of the absolute navigation information, and the relative wind speed information in the form of NMEA 0183 format, and a trigger signal and a bearing signal from the reflected wave signal information. An RSC board that classifies a heading signal or a video signal and converts a digital signal into an analog signal, and an RSC controller that analyzes the corresponding information received from the NMEA interface and the RSC board to calculate the absolute blue information or the final blue information. may consist of

In addition, the speed measuring unit may measure the absolute navigation information by including a gyrocompass and DGPS.

In addition, the RSC controller may perform regression analysis on the absolute navigation information and the relative wave information to calculate absolute wave information of wave height, wave direction, and wave period.

In addition, the control unit may drive the S-band radar according to weather information of rain, snowfall, or fog.

In addition, the control unit may calculate the final wave information through the absolute wind speed information when the reception strength of the sea surface reflected wave is less than or equal to a specific value in which the relative wave information cannot be specified.

According to the present invention, by configuring the radar unit in dual, it is possible to accurately scan the sea surface state and provide wave information regardless of marine weather conditions, and even if the reception strength of the sea level reflected wave is weak, wave information due to wind can be obtained by using the anemometer. Relative wind direction/speed is measured through DGPS and GYRO, and absolute wind direction/wind speed is calculated after measuring ship speed and route through DGPS and GYRO. There is an effect that can further improve.

In addition, in rough seas, it is possible to improve the stability of operation by miniaturizing and systematizing wave measurement through the ship's navigation equipment and the NMEA interface, which is an additional interface equipment, without relying on the crew's observation.

1 shows a wave measurement system according to the prior art.
2 illustrates a ship to which a marine wave information measurement system using a ship navigation equipment according to an embodiment of the present invention is applied.
FIG. 3 illustrates a configuration diagram of a maritime wave information measurement system using the ship navigation equipment of FIG. 2 .
FIG. 4 illustrates a flowchart of a method for calculating absolute wave information by a marine wave information measurement system using the ship navigation equipment of FIG. 3 .

Hereinafter, embodiments of the present invention having the above-described characteristics will be described in more detail with reference to the accompanying drawings.

2 illustrates a ship to which a maritime wave information measurement system using a ship navigation equipment according to an embodiment of the present invention is applied, and FIG. 3 illustrates a configuration diagram of a maritime wave information measurement system using the ship navigation equipment of FIG. 2 4 illustrates a flowchart of a method for calculating absolute wave information by a marine wave information measurement system using the ship navigation equipment of FIG. 3.

Referring to FIGS. 2 and 3, the maritime wave information measurement system using the vessel navigation equipment according to an embodiment of the present invention includes a dual-configuration radar unit 110 emitting short and long waves and measuring main vessel operation information. It consists of a speed measuring unit 120, an anemometer 130, and a control unit 140 that calculates the absolute wave information of the wave, and the main point is to increase the accuracy of the wave information by utilizing the navigation equipment of the ship itself.

First of all, the radar unit 110 radiates a short phase of 8 GHz to 12 GHz to the water plane of the sea area around the main ship through a scanner unit (antenna) to obtain a short distance with high resolution resolution from the corresponding sea level reflection wave. It consists of an X-band radar 111 that detects an object, and an S-band radar 112 that detects a long-range object having a relatively low electromagnetic wave attenuation rate from the corresponding sea level wave by emitting a long phase of 2 GHz to 4 GHz.

Here, the radar unit 110 transmits the received reflected wave signal information of the corresponding sea level reflected wave to the RSC board 142 through the NMEA interface 141 of the control unit 140 described later.

Next, the speed measuring unit 120 measures absolute navigation information, including a gyro compass 121 and a differential GPS (DGPS) 122 to measure absolute navigation information.

Next, an anemometer 130 measures relative wind speed information in the sea area around the ship. Here, the relative wind speed information refers to wind speed information of wind direction and wind speed measured during navigation by the anemometer 130 installed on the vessel.

Next, the control unit 140 selectively drives the X-band radar 111 or the S-band radar 112 of the radar unit 110 according to the weather information of the sea area around the main ship, and the reflected wave signal information of the corresponding sea level reflected wave of the corresponding radar Relative wave information is calculated from , and absolute wave information of wave height, wave direction, and wave period is calculated by analyzing the absolute navigation information from the speed measuring unit 120 and the calculated relative wave information.

Alternatively, the control unit 140 analyzes the absolute navigation information and the relative wind speed information to calculate the absolute wind speed information, and extracts sea level information corresponding to the wind speed information of the Beaufort Table of Table 1 below, After comparing and analyzing the absolute wave information, the final wave information is calculated.

Rating designation Commentary wind speed
(mile/h) digging
(M) digging
(sec.) marine 0 calmness Sponge smooth and oil spilled less than 1 - One geogyeongpung Feeling of small waves on the sea surface 1 to 4 0.1
(0.1) 0.5 2 convulsion Small waves can be seen on the sea surface 4 to 8 0.2
(0.3) 1.3 3 Yeonpung White waves can be seen everywhere on the sea surface 8 to 13 0.6
(One) 2.3 to 2.7 4 painting style Half of the sea level becomes white waves 13~19 One
(1.5) 3.2~4.3 5 gale The sea surface becomes almost white waves 19-25 2
(2.5) 4.8~5.4 6 Ungpung white waves are bubbling 25 to 32 3
(4) 5.9 to 7.0 7 gale White waves rise even higher 32~39 4
(5.5) 7.5~8.6 8 gale The storm rises even higher 39~47 5.5
(7.5) 9.1~10.7 9 strong wind The storm rises very high 47~55 7
(10) 11.3~12.3 10 celestial wind The storm rises even higher 55-64 9
(12.5) 12.9~14.5 11 storm the storm is severe 64-75 11.5
(16) 15 to 15.9 12 old fashioned Worried about capsizing of ships 75 or more 14
(-) 17.2

That is, if the received strength of the sea level reflected wave is weak and is below a specific value at which the relative wave information cannot be specified, the final wave, which is the absolute wave information, through the absolute wind speed information calculated from the relative wind speed information of the anemometer 130. information can be derived.

For example, the controller 140 may extract sea surface conditions and wave height information corresponding to absolute wind speed information according to a Beaufort table providing sea surface conditions and wave height information according to wind speed grades, and provide the extracted sea surface conditions and wave height information through the display 150 .

In addition, the control unit 140 selectively drives the S-band radar 122 according to weather information of rain, snowfall or fog, and drives the X-band radar 121 according to other weather information. Alternatively, in fog, the S-band radar 122, which has a relatively low attenuation rate of the sea level reflection, is driven to accurately scan the sea level condition, and the X-band radar 121 is driven otherwise to scan the sea level condition with high resolution. .

On the other hand, after a typhoon or storm passes, the wind is not measured, but the sea conditions are rough and the wave height may be severe. Through this, absolute wave information can be calculated.

Specifically, the control unit 140 transmits the reflected wave signal information from the radar unit 110, the route and position and absolute navigation information of the absolute navigation information from the speed measuring unit 120, and the relative wind speed information from the anemometer 130 to NMEA. The NMEA interface 141, which receives in the form of 0183 format, classifies the reflected wave signal information into a trigger signal, a bearing signal, a heading signal, or a video signal, and converts the digital signal into It consists of an RSC board 142 that converts into an analog signal, and an RSC controller 143 that analyzes the information received from the NMEA interface 141 and the RSC board 142 to calculate absolute or final blue information.

That is, the NMEA interface 141 receives the aforementioned NMEA 0183 formatted information through RS232/422 communication, the RSC board (Radar Scan Converter) 142 controls the reflected wave signal, which is a radar signal, and the RSC controller 143 ) can calculate absolute wave information of wave height, wave direction, and wave period by regression analysis of absolute navigation information and relative wave information.

For reference, NMEA 0183 (National Marine Electronics Association 0183) is a standard for transmitting time, location, or direction information.

In addition, the trigger signal is a signal generated according to the natural frequency of the equipment itself, and is a pulse signal generated when the aerial part of the radar unit 110 rotates while radiating electromagnetic waves. It is possible to determine the number of trigger signals and calculate a physical angle value when a trigger signal is generated.

In addition, the bearing signal is a pulse signal generated according to the rotation angle of the aerial part of the radar unit 110.

In addition, the heading signal is a pulse signal generated once every time the aerial part of the radar unit 110 passes a specific reference point, and the navigation direction of the ship and the reference direction of the radar unit 110 coincide with the ship heading mark ) is used as

In addition, the video signal is a signal in which electromagnetic waves radiated from the aerial part of the radar unit 110 are reflected from an object, and is emitted according to the trigger signal, so that the trigger signal and the video signal are synchronized.

On the other hand, referring to FIG. 4, the method of calculating absolute wave information by the maritime wave information measuring system using the ship navigation equipment according to the present invention is as follows.

First of all, rain, snowfall or fog is determined from the weather information of the sea area around the ship (S110), and the X-band radar or S-band radar is selectively driven to emit short or long waves (S121, S122).

For example, in case of rain, snow or fog, the S-band radar is driven, and in other weather, the X-band radar is driven.

Next, the reception strength of the corresponding sea level reflected wave reflected from the waterline is determined (S130).

Next, if the reception strength of the sea level reflected wave is more than a specific value capable of specifying the relative wave information, the absolute navigation information and the relative wave information are analyzed to calculate the absolute wave information of the wave height, wave direction, and wave period (S140).

Alternatively, if the received intensity of the sea surface reflected wave is below a specific value at which relative wave information cannot be specified, wave information cannot be accurately measured. Final wave information, which is absolute wave information, is calculated (S150).

Therefore, by the marine wave information measurement system using the ship navigation equipment as described above, by configuring the radar unit in dual, it is possible to accurately scan the sea surface state and provide wave information regardless of the sea weather condition, and to provide wave information. Even if the received strength is weak, accurate wave information can be provided by the Beaufort table, so that the reliability of wave information can be further improved.

In addition, in rough seas, it is possible to further improve the stability of operation by miniaturizing and systematizing wave information measurement through the ship's own navigation equipment and the NMEA interface, which is an additional interface equipment, without relying on the crew's observation.

The embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents that can replace them at the time of this application. It should be understood that there may be water and variations.

110: radar unit 111: X-band radar
112: S-band radar 120: speed measuring unit
121: gyro compass 122: DGPS
130: anemometer 140: control unit
141: NMEA interface 142: RSC board
143: RSC controller 150: display

Claims (7)

A radar unit composed of an X-band radar that emits short waves to the water plane and an S-band radar that emits long waves;
a speed measurement unit that measures absolute navigation information; and
Selectively drive the X-band radar or S-band radar of the radar unit according to the weather information of the sea area around the main ship, receive reflected wave signal information from the corresponding sea surface reflected wave, calculate relative wave information, and calculate the absolute navigation information and the relative wave information A control unit for calculating absolute wave information of wave height, wave direction, and wave period by analyzing; Maritime wave information measurement system using ship navigation equipment, including. According to claim 1,
Further comprising an anemometer for measuring relative wind speed information of wind direction and wind speed,
The control unit analyzes the absolute navigation information and the relative wind speed information to calculate absolute wind speed information, extracts sea surface state information corresponding to the wind speed information of the Beaufort table, compares and analyzes the absolute wave information, and determines the final wave Marine wave information measurement system using ship navigation equipment, characterized in that for calculating information. According to claim 2,
The control unit,
An NMEA interface for receiving the reflected wave signal information, the route, position and absolute speed of the absolute navigation information, and the relative wind speed information in the form of NMEA 0183 format;
An RSC board for classifying the reflected wave signal information into trigger signals, bearing signals, heading signals or video signals and converting digital signals into analog signals;
Marine wave information measurement system using ship navigation equipment, characterized in that composed of an RSC controller that analyzes the corresponding information received from the NMEA interface and the RSC board to calculate the absolute wave information or the final wave information. According to claim 3,
The speed measurement unit is characterized in that for measuring the absolute navigation information, including a gyro compass and DGPS, marine wave information measurement system using a ship navigation equipment. According to claim 3,
The RSC controller calculates absolute wave information of wave height, wave direction, and wave period by regression analysis of the absolute navigation information and the relative wave information. According to claim 1,
The control unit drives the S-band radar according to weather information of rainfall, snowfall or fog. According to claim 2,
The control unit calculates the final wave information through the absolute wind speed information when the reception strength of the sea surface reflected wave is less than or equal to a specific value for which the relative wave information cannot be specified. information instrumentation system.

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