KR102707027B1 - Test cruising and performance verifying system of ship and method of thereof - Google Patents

Abstract

The present invention relates to a system and method for sea trial operation and performance verification of a vessel, and a system for sea trial operation and performance verification according to one embodiment of the present invention may include a sea trial operation area and operation route selection unit for selecting a sea area and an operation route for sea trial operation of a vessel in an ice area; a navigation signal measurement unit for measuring a navigation signal of the vessel to evaluate the performance of the vessel; an ice characteristic measurement unit for measuring ice characteristics of a sea area in which the vessel is sea trialed; and a control unit for deriving results on the sea trial operation area and operation route of the vessel and the performance of the vessel based on the information selected by the sea trial operation area and operation route selection unit, the information evaluated by the vessel performance evaluation unit, and the information measured by the ice characteristic measurement unit. According to the present invention, a sea trial operation area is selected in advance through the ice trial operation area and operation route selection, and an optimal operation route to the selected sea area is automatically selected to ensure operation stability, and accordingly, there is an effect of optimizing the ice trial operation period.

Description

{TEST CRUISING AND PERFORMANCE VERIFYING SYSTEM OF SHIP AND METHOD OF THEREOF}

The present invention relates to a system and method for sea trialing and performance verification of a ship, and more particularly, to a system and method for sea trialing and performance verification of a ship capable of sea trialing and verifying the performance of a ship in ice-covered waters.

Generally, when building a ship, sufficient performance tests are conducted through test operations and sea trials during the shipbuilding stage before delivering the ship to the ship owner. Through these performance tests, the normal operation of the equipment and the performance of the ship are verified. In particular, in the case of icebreaking ships, sea trials in ice waters are required.

A full-scale test in ice waters is a test conducted on-site in ice waters using an actual icebreaking vessel to analyze and verify the interaction between model ice and icebreaking vessels performed in an ice tank.

Therefore, in order to conduct a real-ship test in an ice-covered sea area as described above, a sea area with the ice conditions required for the test is selected, and the ship is moved to that sea area to conduct the test. In addition, measuring the ice load due to the collision between the hull and the sea ice and measuring the ice resistance on board are key to the test.

In addition, it is essential to understand ice sheet information characteristics such as strength against sea ice as basic data for estimating ice load and ice resistance.

However, at present, when selecting sea areas and operating for sea trials in ice-covered waters, judgments are made solely based on the experience and accumulated data of polar navigation experts, and there is always an inherent risk of ice-covered waters when operating a ship. As such, there is a problem that the sea trial period is delayed as operations are conducted taking into account this inherent risk.

In addition, in order to conduct the ice sea trial run currently being conducted, each navigation signal of the ship is individually measured, and the characteristics of sea ice are measured on the actual ice sheet while a large number of ice experts are on board and various measuring equipment is installed on the ship. As a result, there is the problem of having to take the risk of safety accidents due to extremely low temperatures in polar regions and threats from wild animals.

Accordingly, the potential prolongation of ice test runs and the risk of performing test runs are increased, which may ultimately lead to an increase in the overall test run cost.

Republic of Korea Patent No. 10-1179641 (August 29, 2012)

The problem to be solved by the present invention is to provide a system and method for ship trial operation and performance verification, which can optimize the trial operation period and ensure the stability of operation by identifying ice information for ship trial operation in ice-covered waters and selecting a trial operation area and operation route.

According to one embodiment of the present invention, a system for sea trial and performance verification of a vessel may include: a sea trial area and operation route selection unit for selecting a sea area and an operation route for a sea trial of a vessel in an ice area; a navigation signal measurement unit for measuring a navigation signal of the vessel to evaluate the performance of the vessel; an ice characteristic measurement unit for measuring ice characteristics of a sea area in which the vessel is being sea trialed; and a control unit for deriving results on the sea trial area and operation route of the vessel and the performance of the vessel based on information selected by the sea trial area and operation route selection unit, information evaluated by the vessel performance evaluation unit, and information measured by the ice characteristic measurement unit.

The above-mentioned sea trial area and operating route selection unit may include an electronic chart display unit for displaying information for selecting the optimal route for the vessel on a display device so that a navigator can check it; an ice radar unit for investigating the thickness of ice using radio waves; an ice information unit for collecting information on the location, shape, and concentration of sea ice existing when the vessel operates in an ice-covered sea area; and a sea area selection and operating condition unit for entering requirements for selecting an ice-covered sea area for the vessel.

The requirements entered through the above sea area selection and operation conditions may be information on one or more of the thickness, size and distribution range of flat ice, ice floes and ice veins, direction and strength of the current, and direction and strength of the wind required for the sea trial of the ship.

The ice information contained in the above ice information section may include one or more of medium/high resolution satellite images, ice charts, short/long-term ice forecasts, and ice information from polar stations and other vessels.

The navigation signal measuring unit includes a navigation information recorder that records data related to the navigation of the vessel; and an information transmitter/receiver that transmits information collected from the navigation information recorder to the control unit, and the navigation information recorder can record any one or more of the following information: the vessel's position, speed, course, voice of a bridge worker, voice of a communication device, radar data, water depth, other usage history, engine and propulsion machine usage history, wind direction, wind speed, and information of a vessel's automatic identification device.

The above ice characteristic measuring unit may include an ice remote measuring device that remotely measures the thickness of ice and snow; and an ice characteristic measuring device that measures one or more of the characteristics of ice among temperature, density, salinity, strength, and internal structure of sea ice.

The above control unit can estimate, evaluate and verify the performance of the ship by comparing the information selected from the test operation sea area and operation route selection unit, the information measured from the navigation signal measurement unit, and the information measured from the ice characteristic measurement unit with the results of analyzing the interaction between the model ice and the model ship performed in the ice tank.

Meanwhile, a method for sea trial and performance verification according to one embodiment of the present invention may include a step of selecting a sea area and an operating route for a sea trial of a ship in an ice area; a step of measuring a navigation signal of the ship to evaluate the performance of the ship; a step of measuring ice characteristics of a sea area in which the ship is sea trialed; and a step of deriving results on the sea trial area and operating route of the ship and the performance of the ship based on information selected in the sea trial area and operating route selection step, information evaluated in the performance evaluation step of the ship, and information measured in the ice characteristic measurement step.

The above-mentioned sea trial area and operating route selection step may select the sea trial area and operating route of the vessel by using at least one of information measuring the thickness of the ice sheet, information on the location, shape and concentration of sea ice present when the vessel operates in an ice-covered area, and information on requirements for selecting an ice-covered sea trial area for the vessel.

The requirements entered through the above sea area selection and operation conditions may be information on one or more of the thickness, size and distribution range of flat ice, ice floes and ice veins, direction and strength of the current, and direction and strength of the wind required for the sea trial of the ship.

The above navigation signal measurement step can record and measure information including one or more of the ship's position, speed, course, bridge worker's voice, communication device voice, radar data, water depth, other usage history, engine and propulsion machine usage history, wind direction, wind speed, and information of the ship's automatic identification device.

The above ice characteristic measurement step may include an ice remote measurement step for remotely measuring the thickness of ice and snow; and an ice characteristic measurement step for measuring one or more characteristics of ice among temperature, density, salinity, strength, and internal structure of sea ice.

The step of deriving results on the sea trial area and operating route of the vessel and the performance of the vessel can estimate, evaluate and verify the performance of the vessel by comparing the information selected in the sea trial area and operating route selection step, the information measured in the navigation signal measurement step, and the information measured in the ice characteristic measurement step with the results of analyzing the interaction between the model ice and the model vessel performed in the ice tank.

According to the present invention, by selecting an ice sea trial operation area and an operating route, a trial operation area is selected in advance, and an optimal operating route to the selected sea area is automatically selected, thereby ensuring operational stability, and thus there is an effect of optimizing the ice sea trial operation period.

In addition, navigation signals can be measured in batches through the performance evaluation system of icebreaking vessels, and ice characteristics can be measured automatically rather than directly on the actual ice sheet, which has the effect of preventing safety accidents or dangers from wild animals due to extremely low temperatures that may occur in polar regions.

Moreover, as described above, it is possible to scientifically and systematically verify the performance of an icebreaking vessel, improve the reliability of vessel performance, and ultimately optimize the ice sea trial period, minimize the number of personnel performing the trial, and eliminate risks associated with performing the trial, thereby reducing the overall cost of the trial.

FIG. 1 is a block diagram illustrating a test run and performance verification system for a ship according to one embodiment of the present invention.
FIG. 2 is a flowchart illustrating a method for test driving and performance verification of a vessel according to one embodiment of the present invention.

A preferred embodiment of the present invention will be described in more detail with reference to the attached drawings.

FIG. 1 is a block diagram illustrating a test run and performance verification system for a ship according to one embodiment of the present invention.

Referring to FIG. 1, a ship trial run and performance verification system (100) according to one embodiment of the present invention includes a trial run sea area and operation route selection unit (110) and a ship performance evaluation unit (120).

The sea trial area and operating route selection unit (110) is provided to select an ice sea area where a ship's test run is to be performed. For this purpose, the sea trial area and operating route selection unit (110) includes an electronic chart display unit (112), an ice radar unit (114), a weather information unit (115), an ice information unit (116), and a sea area selection unit.

The electronic chart display unit (112) is a maritime geographic information data system for displaying all information related to the navigation of a ship, i.e., chart information, location information, ship course, speed, water depth data, etc., on a navigation computer screen. In this embodiment, the electronic chart display unit (112) is connected to a ship automatic navigation device and a port control system under the control of a computer, and can prevent marine accidents in advance by warning navigators of dangerous situations related to ship grounding and collision.

In addition, the electronic navigation display unit (112) can provide information for selecting the optimal route, thereby reducing transportation costs and increasing maritime traffic processing capabilities, and can identify the cause of an accident when it occurs through automatic navigation record.

The ice radar unit (114) is a detection device for investigating the thickness of ice sheets in polar regions using radio waves. The ice radar unit (114) radiates modulated radio waves from the snow surface into the ice, and measures the time it takes for the radiated modulated radio waves to propagate through the ice, reach the bedrock at the bottom, reflect, and return to the snow surface. In this way, the ice radar unit (114) can measure the thickness of the ice by measuring the time it takes for the modulated radio waves to return.

The weather information unit (115) may be a device that includes information on the operating environment, such as the expected direction and strength of the current and the direction and strength of the wind, when the ship is operating at sea or in polar regions.

The ice information unit (116) may be a device that includes information on the location, shape, and concentration of sea ice that exists when a vessel is operating in polar waters. This ice information unit (116) may include all ice information, such as medium/high resolution satellite images, ice charts, short/long-term ice forecasts, and ice information from polar stations and other vessels.

In this embodiment, the ice information included in the ice information unit (116) can be input or applied to the electronic chart display unit (112) to provide ice information such as the location, shape, concentration, and distribution range of sea ice to the navigator. Accordingly, it can be used to select the optimal navigation route in the polar region.

The sea area selection and operation condition unit (118) is a device that inputs conditions for selecting an optimal operation route and sea area for ice sea trial operation of a vessel using requirements and various information for selecting a sea area for ice sea trial operation of a vessel. The requirements for selecting a sea area for ice sea trial operation of a vessel may be information on ice conditions required for each sea trial operation, i.e., specific thickness, size, and distribution range of level ice, brush ice, and ice ridge, direction and strength of the current, and direction and strength of the wind.

In addition, requirements for selecting a navigation route for moving to an ice sea trial area may include information on the operable ice conditions of the icebreaking vessel, i.e., the thickness of ice preferred for navigation, operation in ice lakes (polynya), operation on the sea surface between ice sheets, prior movement routes of surrounding icebreaking vessels, restrictions on operation in ice veins, and depth restrictions.

At this time, in the case of the preferred ice thickness for navigation of the ship, it can be entered by applying a predetermined safety factor to the maximum operable ice thickness classified according to the design criteria of the icebreaker, but a value exceeding the maximum operable ice thickness classified according to the design criteria of the icebreaker cannot be entered.

The ship performance evaluation unit (120) is provided to evaluate the performance of the ship and includes a navigation signal measurement unit (122), an ice characteristic measurement unit, a control unit (126), and a test run analysis unit (128).

The navigation signal measuring unit (122) is provided to measure navigation signals and includes a navigation information recorder (122a) and an information transmitter/receiver (122b).

The navigation data recorder (122a) is a device that records data related to the navigation of a ship. The navigation data recorder (122a) can record the ship's position, speed, course, voices of bridge personnel, voices of communication devices, radar data, water depth, other usage history, engine and propulsion usage history, wind direction, wind speed, and information related to the automatic identification system (AIS).

The information transceiver (122b) is a device that collects signals from the ship's navigation information recorder (122a) and various systems, converts the collected signals, and transmits them collectively to the control unit (126). To this end, the information transceiver must be able to transmit multiple pieces of information received through connection with the main ship equipment to the control unit (126), and must be able to apply firmware that can adjust information received from the main ship equipment. In addition, the information transceiver (122b) can be a device that adjusts the ultrasonic signal frequency (Hz) when transmitting an analog signal to the control unit (126), and does not have compatibility issues with the measurement program installed in the control unit (126).

In this embodiment, the types of signals received by the information transceiver (122b) may be Gyro Compass, Speed Log (Over-Ground & In-Water), Speed Log (Current Speed & Direction), Echo Sounder (Water Depth), Anemometer (Wind Direction & Speed), Air Temperature Indicator, DGPS (Time, Latitude, Longitude, Speed), POD (RPM, Power, Torque, Angle), IAS (RPM, Torque, Power, Rudder Angle, Air Temperature, Draft), etc.

The ice characteristic measuring unit (124) is a device for measuring the characteristics of ice and includes an ice remote measuring device (124a) and an ice characteristic measuring device (124b).

The ice remote measuring device (124a) is provided to remotely measure the thickness of ice and snow. The thickness of ice and snow can be measured based on images of ice breaking at the bow or stern while the ship is operating and turning over as it moves to the center of the ship (e.g., Telemetrical Device).

In this embodiment, the ice remote measuring device (124a) may be a device capable of measuring the thickness of ice and snow in real time based on video control, and may also be a device installed at a specific part of the bow or stern to generate an electromagnetic field to measure the thickness of ice and snow.

The ice characteristic measuring device (124b) is provided to measure ice information characteristics such as temperature, density, salinity, strength, and internal structure of sea ice. The ice characteristic measuring device (124b) is an independent device equipped with an ice specimen collection and cutting device on an icebreaker, and an auger device capable of drilling sea ice is applied to one side, and a sensor capable of measuring temperature at each ice depth can be attached. In addition, it may be a device to which a specimen fixing device is applied to ship the collected and cut specimen to the icebreaker.

In this embodiment, the ice characteristic measuring device (124b) is remotely operated and can be operated by a crane installed on an icebreaker or a separate device for loading and unloading can be applied.

The control unit (126) receives and collates all information from the test operation sea area and operation route selection unit (110), navigation signal measurement unit (122), and ice characteristic measurement unit (124), and can display the status, trends, and operations of all information collated through the measurement program in real time. For this purpose, the control unit (126) can be used as a computer including a display device.

The test drive analysis unit (128) can analyze the test drive of a vessel using all information collected through the control unit (126). To this end, the test drive analysis unit (128) includes a simulation comparison unit (128a) and an analysis unit (128b). This test drive analysis unit (128) may be a component included in the control unit (126) as needed.

The simulation comparison unit (128a) can estimate, evaluate and verify the performance of an actual ship based on the results of the interaction analysis of the model ice and the model icebreaker performed in the ice tank, based on all the information collected from the navigation signal measurement unit (122) and the ice characteristic measurement unit (124). At this time, the results of the ice tank test can be input into the ice sea trial run analysis program in the simulation comparison unit (128a).

The analysis unit (128b) calculates additional resistance values for wind speed, wave speed and direction during the sea trial of the ship, and corrects the calculated resistance values to the propulsion output value of the main ship. In addition, it calculates correction factors for differences in snow thickness, ice thickness and ice strength, and corrects the calculated correction factors to the propulsion output value of the main ship.

In this way, the analysis unit (128b) reflects the propulsion output value measured during the ship's test run to ultimately derive the performance of the icebreaking vessel under the target ice conditions.

FIG. 2 is a flowchart illustrating a method for test driving and performance verification of a vessel according to one embodiment of the present invention.

Referring to FIG. 2, a method for test driving and performance verification of a vessel according to one embodiment of the present invention is described.

In order to conduct a sea trial of a vessel, all information related to the navigation of the vessel is synthesized and displayed on an electronic chart (S101). The information displayed on the electronic chart may include information on the thickness of the ice detected by the ice radar unit (114) (S102), and may also include information on ice collected through the ice information unit (116) (S103). The information on ice collected by the ice information unit (116) may include medium/high resolution satellite images, ice charts, short/long-term ice forecasts, and ice information from polar stations and other vessels.

And the information displayed on the electronic chart can be comprehensively displayed, such as chart information, location information, ship course, speed, and water depth data. In addition, based on the information displayed on the electronic chart, conditions for selecting a sea area for a sea trial run of the ship and selecting a navigation route can be input through the sea area selection and navigation condition section (118) (S104). The conditions input through the sea area selection and navigation condition section (118) can be information on the operable ice conditions of the icebreaking vessel, that is, the thickness of ice preferred for navigation, navigation on an ice lake (polynya), navigation on the sea surface between ice sheets, a preceding movement route of a surrounding icebreaking vessel, restrictions on navigation along an ice vein, and restrictions on depth.

Based on the ice information described above and the various conditions entered, the ice-covered sea area and operating route for vessel trial runs can be selected.

And the performance of the icebreaking vessel can be evaluated through the performance evaluation unit of the icebreaking vessel. To this end, the performance of the vessel is first evaluated in the vessel performance evaluation unit (120), and the characteristics of the ice are evaluated while the vessel is sailing through the ice characteristics measurement unit (124).

First, to evaluate the ship performance, navigation information is recorded (S111). At this time, the recorded ship navigation information may include the ship's position, speed, course, bridge personnel's voice, communication device voice, radar data, water depth, other usage history, engine and propulsion usage history, wind direction, wind speed, and ship automatic identification system (AIS)-related information.

And as described above, the recorded navigation information is transmitted to the control unit (126) through the information transceiver (122b) (S112). In this step, the signals transmitted to the control unit (126) may be Gyro Compass, Speed Log (Over-Ground & In-Water), Speed Log (Current Speed & Direction), Echo Sounder (Water Depth), Anemometer (Wind Direction & Speed), Air Temperature Indicator, DGPS (Time, Latitude, Longitude, Speed), POD (RPM, Power, Torque, Angle), IAS (RPM, Torque, Power, Rudder Angle, Air Temperature, Draft), etc. And the signal transmitted to the controller may adjust the ultrasonic signal frequency (Hz) of the received analog signal and convert it into a signal compatible with the measurement program installed in the control unit (126).

And in order to measure ice characteristics, ice is measured remotely (S121). In this step, in order to measure ice remotely, the thickness of ice and snow can be measured based on images of ice breaking at the bow or stern while the ship is operating and turning over as it moves to the center of the ship.

And ice characteristics can be measured for remotely measured ice (S122). At this time, the measured ice characteristics can be ice sheet information characteristics such as temperature, density, salinity, strength, and internal structure for sea ice.

As described above, the simulation comparison is performed using the information on the selection of ice sea area and operation route for the vessel's test run, the information on the vessel's performance, and the information on the measured ice characteristics (S131). The simulation comparison process estimates, evaluates, and verifies the performance of the actual vessel by comparing the results of the analysis of the interaction between the model ice and the model icebreaker performed in the ice tank with the information on the selection of ice sea area and operation route, the information on the vessel's performance, and the measured ice characteristics.

Accordingly, based on the results of the simulation comparison, the performance of the icebreaker required for the ship's trial run is analyzed (S132). In this analysis step, additional resistance values for wind speed, wave speed, and direction during the ship's trial run are calculated, and the calculated resistance values are corrected to the ship's propulsion output value. In addition, correction factors for the difference in snow thickness, ice thickness, and ice strength can be calculated, and the calculated correction factors can be corrected to the ship's propulsion output value.

Accordingly, based on the interpreted results as described above, the optimal sea area and operating route for the ship's test run in ice-covered waters can be selected, and results on the performance of the icebreaking ship can be derived (S133).

As described above, the specific description of the present invention has been made by means of embodiments with reference to the attached drawings. However, the above-described embodiments have only been described as preferred examples of the present invention, and therefore, the present invention should not be understood as being limited to the above-described embodiments, and the scope of the rights of the present invention should be understood by the claims described below and their equivalent concepts.

100: Test Drive and Performance Verification System
110: Test operation area and operation route selection department
112: Electronic chart display unit
114: Ice Radar Department
115: Weather Information Department
116: Ice Information Department
118: Conditions for sea area selection and operation
120: Ship Performance Evaluation Department
122: Navigational Signal Instrumentation Section
122a: Navigational data recorder
122b: Information Transmitter/Receiver
124: Ice characteristic measurement unit
124a: Bing Remote Instrument
124b: Ice Characteristic Meter
126: Control Unit
128: Test Drive Analysis Section
128a: Simulation comparison section
128b: Interpretation section

Claims (13)

A sea trial area and operating route selection department that selects sea areas and operating routes for sea trial runs of ships in ice waters; and
Ship performance evaluation department that evaluates the performance of the above ship;
Including,
The above sea trial area and operation route selection section includes an electronic chart display section, an ice radar section, a weather information section, an ice information section, and a sea area selection and operation condition section to select an ice sea area where the vessel's test run is to be performed.
The above electronic chart display unit is a maritime geographic information data system for displaying on a navigation computer screen information related to the navigation of the vessel, such as chart information, location information, vessel course, speed, and water depth data.
The above ice information unit is a device that includes ice information such as the location, shape, and concentration of sea ice that exists when the ship is operating in polar regions.
The above sea area selection and operation condition section is a device that inputs the requirements for selecting the ice sea trial area of the vessel and the requirements for selecting the operation route to move the vessel to the ice sea trial area.
The above ship performance evaluation unit includes a navigation signal measurement unit, an ice characteristic measurement unit, a control unit, and a test run analysis unit for evaluating the test run performance of the ship.
The above navigation signal measuring unit is for measuring navigation signals during the test run of the vessel, and includes a navigation information recorder for recording information related to the test run of the vessel, and an information transmitter and receiver for transmitting information recorded in the navigation information recorder to the control unit.
The above ice characteristic measuring unit is for measuring the ice characteristics of the sea area where the vessel is being commissioned, and includes an ice remote measuring device and an ice characteristic measuring device.
The above control unit includes a measuring program that receives and collates information selected by the test operation sea area and operation route selection unit and information evaluated by the ship performance evaluation unit, and a display device that displays in real time the status, trends, and operations of all information collated by the measuring program.
The above test drive analysis unit includes a simulation comparison unit and an analysis unit that enable analysis of the test drive of the vessel to be performed using all information collected through the control unit.
Ship commissioning and performance verification system. delete In claim 1,
The requirements for selecting the ice sea trial area of the above vessel are information on at least one of the thickness, size and distribution range of flat ice, ice floes and ice veins, direction and strength of the current, and direction and strength of the wind required for the trial run of the above vessel.
Ship commissioning and performance verification system. In claim 1,
The ice information contained in the above ice information section includes at least one of medium/high resolution satellite images, ice charts, short/long-term ice forecasts, and ice information from polar stations and other vessels.
Ship commissioning and performance verification system. In claim 1,
The above navigation information recorder records one or more of the following information: the ship's position, speed, course, bridge personnel's voice, communication device voice, radar data, water depth, other usage history, engine and propulsion usage history, wind direction, wind speed, and information from the ship's automatic identification device.
Ship commissioning and performance verification system. In claim 1,
The ice remote measuring device of the above ice characteristic measuring unit remotely measures the thickness of ice and snow,
The ice characteristic measuring device of the above ice characteristic measuring unit measures one or more of the characteristics of ice among temperature, density, salinity, strength, and internal structure of sea ice.
Ship commissioning and performance verification system. In claim 1,
The simulation comparison section of the above test run analysis section estimates, evaluates and verifies the performance of the ship by comparing the information selected in the test run sea area and operation route selection section, the information measured in the navigation signal measurement section and the information measured in the ice characteristic measurement section with the results of analyzing the interaction between the model ice and the model ship performed in the ice tank.
Ship commissioning and performance verification system. delete delete delete delete delete delete

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