KR101609723B1 - Monitoring system of real timeocean current - Google Patents

Abstract

The present invention relates to a real-time local ocean current monitoring system which monitors and analyzes local ocean current in real-time, provides accurate ocean current information during a time of working on the sea to improve safety and efficiency of offshore work, allows a rapid recovery following an accident, ships in distress, and ship wrecks occurring on the sea, and prevents an accident from spreading. According to the present invention, the real-time local ocean current monitoring system comprises: a GPS receiver; an omnidirectional camera which photographs a periphery; a distance sensor which senses a distance of an object existing on the periphery; a water temperature sensor and a flow rate sensor which sense the water temperature and flow rate of the ocean current; a wireless module which transmits a position of the GPS receiver, an image from the camera, the distance of the distance sensor, temperature of the water as determined by the temperature sensor, and flow rate data of the flow rate sensor by wireless; buoyancy bodies each of which is provided with the GPS receiver, the camera, distance sensor, water temperature sensor, flow rate sensor, and wireless module and drifts on the ocean current; an analysis server which handles real-time ocean current information including intensity and direction of the ocean current using the water temperature, the flow rate, and the position data transmitted from the wireless module provided in each buoyancy body.

Description

[0001] The present invention relates to a real-time local current monitoring system,

The present invention monitors and analyzes local currents in real time to improve the safety and efficiency of maritime work by providing accurate current information at the time of operation at sea and to utilize the images of surrounding objects and the distance information of surrounding objects This is a real-time local-area current monitoring system that can prevent accidents from happening and prevent accidents from happening in the sea.

The development of marine technology has increased marine ecosystem surveys and construction of seabed bases, and maritime trade has increased, marine accidents such as ship sinking and oil spill are increasing.

Especially, in the event of a maritime accident, it is necessary to take prompt action such as lifesaving and accident prevention.

Such maritime work and the structure and search for marine accidents are important because the manual work by the workers takes a large part due to the special nature of marine.

The work at the ocean should be done by overcoming the currents that are changed by various factors.

So, for safe, fast, and efficient operation in the oceans, accurate information on ocean currents is needed.

However, no technology has yet been provided to provide accurate ocean current information that can be of practical assistance to maritime operations.

The National Oceanographic Research Institute of Korea collects the ocean current data for a considerable period of time and provides information on the ocean current direction and provides information on the tidal currents (ocean currents due to the moon and sun tonality) over time calculated using a numerical model.

However, it is related to a relatively wide area of ocean current and bird information provided by the National Oceanographic Research Institute. There is a limit to statistical data, and there is a limitation that the influence of the wind and the like may not be considered, which may be different from the actual flow.

That is, statistical aquatic and algae information provided by the National Oceanographic Research Institute does not help much in the work of marine ecosystem survey, subsea structure installation, rescue structure and search, and the local area of the ocean where the work is performed Accurate current information at the site is helpful.

For reference, Patent No. 10-0989193 entitled " Marine Information Collection & Monitoring System "collects and analyzes marine information using a marine information collection device installed at a certain point in the ocean. Is marine information about a point and is not useful for maritime work done in the local area because it is not information about a certain area. The ocean current information provided by the National Oceanographic Research Institute is obtained by installing a device such as the marine information collecting device of the registered patent on the sea at a distance of several kilometers to several hundred kilometers.

The present invention provides accurate ocean current information in a local area where maritime operations such as seabed investigation, human search and structure are performed, so that maritime operations can be performed quickly, safely and efficiently, and using peripheral images and distance information In order to provide a real - time local ocean current monitoring system that can be utilized for rescue work of the victims,

Another object of the present invention is to provide a real-time localized current monitoring system that is protected from rough sea environment and can be used for a long time.

In order to achieve the above object, a real-time local current monitoring system according to the present invention includes:

A GPS receiver;

A omnidirectional camera for shooting the surroundings;

A distance sensor for sensing a distance of an object existing in the vicinity;

A water temperature sensor and a flow velocity sensor for sensing the temperature and flow velocity of the current;

A wireless module for wirelessly transmitting the position of the GPS receiver, the image of the camera, the distance of the distance sensor, the temperature of the water temperature sensor, and the flow rate sensor data of the water temperature sensor;

A buoyancy body mounted with the GPS receiver, the camera, the distance sensor, the water temperature sensor, the flow velocity sensor and the wireless module, respectively, and drifting in an ocean current;

And an analysis server for analyzing real-time current information including the intensity and direction of the current using the temperature, flow rate, and position data transmitted by the wireless module mounted on each of the buoyant bodies.

And the buoyant body includes a base and a cover which are assembled with each other,

The GPS receiver and the wireless module are embedded in the buoyant body.

The real-time localized current monitoring system according to the present invention configured as described above provides real-time current information on a local area where maritime work is performed, thereby enabling quick, safe and efficient work, The GPST receiver and the wireless module that collects and transmit the current information can be quickly and safely rescued by utilizing the distances information of the surrounding objects, ie, the distressed person, and the wireless module is protected from the rough sea environment, It is a local current monitoring system and very useful for industrial development.

1 is a schematic block diagram of a real-time local current monitoring system in accordance with the present invention;
Fig. 2 is a block diagram of a horizontal holding means for protecting constituent elements embedded in the buoyant body.
3 conceptually illustrates a method for acquiring ocean current information in a local area of the sea where a maritime work is to be performed;
FIG. 4 is a view showing an example of current information that is analyzed in real time through monitoring by analyzing the acquired current information; FIG.

Hereinafter, a real-time local current monitoring system according to the present invention will be described in detail with reference to the drawings.

Before describing the present invention in more detail,

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

As shown in FIG. 1, the real-time local current monitoring system according to the present invention includes a buoyant body 10 drifting in the sea, a GPS receiver 20 mounted on the buoyant body 10 to collect various data, ), A flow rate sensor S2 and a wireless module 30 for wirelessly transmitting the collected data, a omnidirectional camera 81 for photographing the surroundings, a distance sensor 2 for sensing the distance of an object existing in the vicinity, And an analysis server 90 for analyzing data transmitted by the module and extracting real-time current information.

First, the buoyant body 10 floats on the sea and drifts on the surface current of the current.

The buoyant body 10 is a ball having a diameter of about 20 cm and has a built-in GPS receiver 20, a wireless module 30, and the like.

The buoyant body 10 includes a hemispherical base 11 and a lid 13 which are assembled together so that maintenance and replacement of the built-in GPS receiver 20 and the like are possible.

A wire 15 is connected to an outer surface of the base 11 of the buoyant body 10 and a weight 17 is attached to an end of the wire 15.

The buoyant body 10 is centered by the connection between the wire 15 and the weight 17 so that the structure in which the base 11 is disposed at the lower portion and the lid 13 is disposed at the upper portion do.

The wire (15) is equipped with a water temperature sensor (S1) and a flow rate sensor (S2) for sensing the temperature and flow velocity of the current.

The wire 15 has a length of several meters to several tens of meters in accordance with the depth of water to be subjected to the marine work and at least one of the water temperature sensor S1 and the flow rate sensor S2 is mounted on the wire 15, Detects water temperature and flow rate.

Although not shown in the drawing, an underwater camera may be mounted on the wire 15 to acquire an image related to an underwater situation, and a camera may be attached to the outside of the buoyant body 10 to acquire an image related to a surrounding situation .

Camera images can be useful for rescue operations. It is preferable that the camera at this time is equipped with a camera for shooting 360 degrees ahead.

A GPS receiver 20, a receiving module 40, a wireless module 30, a battery 60 and a distress kit 50 are built in the buoyant body 10, A camera 81 for photographing the periphery, and a distance sensor 82 for sensing the distance of an object existing in the vicinity.

The buoyant body (10) is dropped here and there so as to be arranged in a lattice-like manner in a marine working area.

The GPS receiver 20 receives a signal transmitted from a GPS satellite and calculates its own position data. For reference, the signal received from the GPS satellite includes time data.

The receiving module 40 receives data on the water temperature and the flow rate sensed by the water temperature sensor S1 and the flow sensor S2.

The distress kit 50 sends a signal to the surrounding area to inform its position. That is, the buoyant body 10, in which the GPS receiver 20 and the like are built, is small and drifts along the current. Thus, the distress kit 50 sends a signal to the surrounding area to inform its position.

When the distress kit 50 transmits a signal informing its position from time to time, a lot of power is consumed. Therefore, the distress kit 50 is preferably in a dormant state using a minimum power source, and is waked up (activated) when a seek signal is received, and transmits a signal informing its surroundings of its position.

The wireless module 30 wirelessly transmits data on the temperature and flow rate received by the receiving module 40, position data and time data received and calculated by the GPS receiver 20.

The wireless module 30 may use a radio transmission technology such as RF, Zigbee, Bluetooth or NFC.

There is a limit to the distance over which the wireless module 30 can transmit data wirelessly. Therefore, the radio module 30 transmits data to a base (local base station or a communication base station) located near the shore, collects data received by the base from various radio modules 30, and transmits the collected data to the analysis server 90 send.

At this time, when the maritime work position is far from the base located on the shore, a marine vessel or a buoyant body 10 is provided with a repeater having a long transmission distance. The repeater collects data transmitted by the wireless modules 30 To the analysis server 90 either directly or through the base.

The battery 60 supplies power for driving the GPS receiver 20, the receiving module 40, the wireless module 30, the distress kit 50, the camera 81, and the distance sensor 82.

The battery 60 uses a rechargeable secondary battery and has a capacity that can be used for several days (for example, about 3 days) by charging once.

The camera 81 photographs the periphery, and transmits the photographed image to the analysis server through the wireless module.

It is preferable that the camera 81 can photograph all the surroundings using only one camera by using a omni-directional camera capable of simultaneously photographing all directions.

The distance sensor 82 detects the distance of an object existing in the vicinity, that is, the distance between the distance sensor and the object. The distance sensor 82 emits ultrasonic waves in all directions, receives ultrasonic waves reflected from the object, and senses the distance of the object.

The image and distance information of the camera 81 and the distance sensor 82 can be utilized to quickly and accurately reconstruct the image when a rescue occurs in the sea.

The analysis server 90 analyzes and extracts real-time current information of a maritime work area using data such as water temperature, flow velocity, position and time transmitted by the wireless modules 30 mounted on each buoyancy body 10 .

The analysis server (90)

A transmitting and receiving unit 91 for receiving the data transmitted by the wireless module 30 and transmitting the analyzed current information,

A memory 93 for storing data received by the transceiver 91,

An analysis unit 95 for analyzing data stored in the memory 93 to extract current information,

And a modeling unit 97 for modeling the current information extracted by the analyzing unit 95 as an image recognizable by the user.

The analyzer 95 analyzes the moving speed and the moving direction of the buoyant body 10 (that is, the flow velocity and direction of the ocean surface water) using the time-based positional data X, Y and Z of the GPS receiver 20.

For example, the moving direction and the moving distance are calculated from the X and Y coordinates of the first point and the second point, respectively, as the moving path of the buoyant body 10 drifting along the current, and the first point and the second point And calculates a moving speed that has moved from the first point to the second point.

And calculates the wave height of the current from the change of the Z value with respect to the points in the moving path of the corresponding buoyant body (10).

Then, data such as water temperature and flow velocity of the underwater current located below the point are extracted from the data sensed by the water temperature sensor S1 and the flow velocity sensor S2 at the moving path points of the buoyant body 10, respectively.

And the flow points of the current flow can be shown by connecting the points calculated by the movement path of the buoyant body 10 linearly.

The modeling unit 97 models the current information analyzed by the analysis unit into an image that can be grasped at a glance by a user (a maritime operator).

Referring to FIG. 4, the modeling unit 97 displays the direction of an ocean current at various points around the maritime work area in the direction of the arrow, displays the intensity of the ocean current (the moving speed of the ocean surface water) The water temperature at that point is indicated by the color of the arrow, etc., so that the operator can see the modeled image and immediately grasp the ocean current information of the sea work area at a glance.

The buoyant body 10 continues to drift along with the ocean current while being drifting along the ocean current. That is, the base 11 is disposed at the bottom by the wire 15 and the weight 17, and the cover 13 is disposed at the top, but is swung back and forth by the horizontal movement and the vertical movement of the current.

When the buoyant body 10 is shaken forward and backward and leftward and rightward, the GPS receiver 20 and the wireless module 30 mounted in the buoyant body 10 may be shocked and damaged while being shaken together.

Therefore, the present invention is applicable to the horizontal holding means 70 (70) so that the GPS receiver (20), the wireless module (30) or the like built in the buoyant body (10) can minimize the influence of the shaking motion of the buoyant body ).

Referring to FIG. 2, the horizontal holding means 70 includes:

A mounting plate 71 on which the GPS receiver 20 and the wireless module 30 built in the buoyant body 10 are mounted,

A connecting rod 73 connected to the upper portion of the mounting plate 71,

A fixing ball 75 fixed to the inside of the cover 13,

A receiving port 77 provided at an end of the connecting rod 73 for rotatably receiving the fixing ball 75,

And a cushioning member (79) provided at an edge of the mounting plate (71) and absorbing an impact on the inner surface of the buoyant body (10)

So that the mounting plate 71 maintains its horizontal posture due to its own weight even if the buoyant body 10 is shaken by currents to change its posture.

The receiving port 77 is provided with an upper bearing 771 and a lower bearing 773 which are in contact with the outer circumferences of the upper and lower sides of the fixed ball 75, The lower case 771 and the lower bearing 773 are integrally coupled to each other. The upper case and the lower case can be separated and recombined at any time by the fixing ball 75.

The horizontal holding means 70 constituted as described above allows the mounting plate 71 to be in a horizontal state by the receiving port 77 rotating in the fixed ball 75 even if the buoyant body 10 is swung back and forth by the currents So that the shock due to the shaking does not transfer the wireless module 30 mounted on the mounting plate 71 and the buoyant body 10 is excessively inclined so that the mounting plate 71 contacts the inner surface of the buoyant body 10 The cushioning member 79 hits the inner surface of the buoyant body 10 to absorb the shock to prevent the wireless module 30 or the like mounted on the mounting plate 71 from being damaged by the impact.

While the present invention has been described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the invention is not limited thereto and that various changes and modifications may be made therein without departing from the spirit and scope of the invention. The present invention is not limited thereto.

10: Buoyant body 11: Base
13: cover 15: wire
17: weight weight 20: GPS receiver
30: wireless module 40: receiving module
50: distress kit 60: battery
70: horizontal holding means 71: mounting plate
73: connecting rod 75: fixed ball
77: Receiving port 79: Buffer member
81: Omnidirectional camera 82: Distance sensor
90: Analysis server 91: Transmission / reception section
93: memory 95: analysis unit
97: Modeling unit

Claims (2)

A GPS receiver;
A omnidirectional camera for shooting the surroundings;
A distance sensor for sensing a distance of an object existing in the vicinity;
A water temperature sensor and a flow velocity sensor for sensing the temperature and flow velocity of the current;
A wireless module for wirelessly transmitting the position of the GPS receiver, the image of the camera, the distance of the distance sensor, the temperature of the water temperature sensor, and the flow rate sensor data of the water temperature sensor;
A buoyancy body mounted with the GPS receiver, the camera, the distance sensor, the water temperature sensor, the flow velocity sensor and the wireless module, respectively, and drifting in an ocean current;
And an analysis server for analyzing real-time current information including the intensity and direction of the current using the temperature, flow rate, and position data transmitted by the wireless module mounted on the respective buoyant body,

The buoyant body (10) comprises a base (11) and a lid (13) which are assembled to each other,
The GPS receiver 20 and the wireless module 30 are embedded in the buoyant body 10,
Further comprising a horizontal holding means 70 for keeping the horizontal position of the GPS receiver 20 and the wireless module 30 built in the swing of the buoyant body 10,

The horizontal holding means (70)
A mounting plate 71 on which the GPS receiver 20 and the wireless module 30 mounted in the buoyant body 10 are mounted,
A connecting rod 73 connected to the upper portion of the mounting plate 71,
A fixing ball 75 fixed to the inside of the cover 13,
A receiving port 77 provided at an end of the connecting rod 73 for rotatably receiving the fixing ball 75,
And a cushioning member (79) provided at an edge of the mounting plate (71) and absorbing an impact on the inner surface of the buoyant body (10)
So that the mounting plate (71) maintains its horizontal posture due to its own weight even if the buoyant body (10) is shaken by currents to change its posture.
The method according to claim 1,
The receiving port 77 is provided with an upper bearing 771 and a lower bearing 773 which are in contact with the outer circumferences of the upper and lower sides of the fixed ball 75, Wherein the upper case and the lower case are integrally formed with the lower case and the upper case and the lower case, respectively, so that the upper case and the lower case can be separated and recombined at the fixing ball.

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