JP2008178325A - System for controlling fishing bank installation information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for controlling fishing bank installation information, which uses a marine GIS (geographical information system), compiles an integrative database for fishing bank information having high positional accuracy and superior visual properties, has readily readable contents and enables diagnosis of the fish-gathering effect of fishing bank. <P>SOLUTION: The marine GIS displays horizontal distribution map of observation data, such as a contour line and plots fishing bank positions as marks, based on accurate longitude and latitude information on the horizontal distribution map. Information regarding the fishing bank names, kinds, scales, bottom materials, simple substance charts, arrangement charts, underwater photographs, video images, fishing conditions, and so on, is prepared as the link information of the marks. The link information is displayed, by clicking a mark that indicates the fishing bank position with a mouse. The system for controlling a fishing bank, incorporated with the database of fishing bank information, is provided. The system for controlling a fishing bank installation information can diagnose actual fish-gathering effect of fishing bank from operating information, based on an accurate fishing bank position and accurate boat position and information on fish catches. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an offshore structure installation information management system applied to management of information related to the installation of offshore structures such as fish reefs.

  In Japan, marine structures such as artificial reefs and natural reefs (hereinafter simply referred to as “fish reefs”) are used by many fishermen and fishers, so most of the reef installations are implemented as public works. . From the viewpoint of cost effectiveness invested (for example, collection effect, collection means that many fish are gathered in one place), not only the governmental organization that plans the project, but also the reef development manufacturer, construction Information collaboration with traders, testing and research institutions, fishery cooperatives, and local fishermen is essential.

  At present, each institution has different perspectives and requirements for business, and the accumulated information is also different from each other. For example, administrative agencies have accumulated information on the results of project implementation, fish reef development manufacturers have product information on their own reefs, construction contractors have accumulated sedimentation and location management information, and test and research institutions have information on fish reef effects. Scientific knowledge has been accumulated, and fishermen have accumulated empirical knowledge on operational status. However, the integration of these information is not progressing. Therefore, if an information management system that can manage these information in an integrated manner can be constructed, it is thought that it can contribute to more effective fish reef business development.

  Regarding the reef database, there are already examples of construction in countries and prefectures, and the creation of the database itself is not a new idea. However, the existing database is mainly managed by administrative agencies and research institutes, and the emphasis is on understanding the business performance, so fishermen are required for accurate location information, seafloor topography, underwater photography, underwater video, etc. Does not contain information. In addition, at sea, positioning accuracy reached a practical level from around 1989, when GPS (Global Positioning System) technology began to spread, and most of the description positions on the reef database of fish reefs installed before that time. Has an error of several hundred meters. Even if you go to the site relying on such inaccurate location information, it is almost impossible to reach the location of the fish reef. In addition, since the installed fish reefs may collapse over the years, it is desirable to update the fish reef database in as short a period as possible.

  As an example, Patent Document 1 below describes that a construction status such as a position of an underwater construction (a chain as a marker) is measured using a side scan sonar.

JP 2004-248642 A

  In order to make effective use of fish reefs, it is extremely important and urgent to build a fish reef database that accurately identifies the positions of fish reefs. However, since the technology for accurately and efficiently identifying the position of a huge number of fish reefs has not been widespread, the position identification has hardly progressed.

  The technical basis of the project plan for the establishment of a fish reef established by the government agency is based on the scientific knowledge accumulated by the testing and research institutions, but on the other hand, there is no empirical knowledge of fishers who actually use the fish reef. In many cases, it is not reflected correctly, and this is one of the major obstacles to business progress.

  Therefore, the first object of the present invention is to use an oceanic version GIS (Geographical Information System) to construct an integrated reef database of reef detailed information with high positional accuracy and excellent operability. The objective is to provide a marine structure installation information management system that allows anyone from government agencies to fishermen to easily view the contents of the reef database.

  The second object of the present invention is to directly view the seabed in addition to general reef information such as the name of the reef, the type of reef, the latitude and longitude of the installation position, the single figure of the reef, the layout of the reef, etc. It is to provide a marine structure installation information management system that enables the investigation of fish reefs on-site while displaying the seafloor exploration image acquired using the side scan sonar among the information under special conditions that cannot be performed .

  The third object of the present invention is to provide the above-described offshore structure installation information management system at a low cost and share the database incorporated in advance, thereby reflecting the fisherman's empirical knowledge in the reef business plan. It is to provide an offshore structure installation information management system that can function as a feedback system and can develop a more effective fish reef business development.

  A fourth object of the present invention is to make it possible to diagnose the collection effect of a school of fish on an actual fish reef based on accurate fish reef position information based on the above-described marine structure installation information management system. .

In order to solve the above-described problems, the present invention comprises a database consisting of information on marine structures and a browsing system for browsing the database.
In the database, marks corresponding to the position of offshore structures based on accurate position information are displayed on the oceanographic geographic information system that can display contour lines.
A data file of link information related to the marine structure corresponding to the mark is stored in association,
In the browsing system, the window is displayed by clicking a mark, and the link information is displayed by clicking a desired icon in the window.

  The link information preferably includes at least information on the latitude and longitude of the position of the offshore structure and date of installation, and a seabed exploration image.

Preferably, the browsing system can take in the positioning information by the positioning device,
At sea, you can view link information while displaying latitude and longitude on the database screen in real time. It is possible to analyze the course.

  Furthermore, it is possible to diagnose the collection effect of the school of fish on the offshore structure based on the offshore structure position information, fishing boat operation information, and actual catch information.

  With this invention, all the organizations involved in the fish reef installation business and related parties can view and share the latest information on the reef that better reflects the actual situation. Not only can the construction method be determined, but also fishermen can operate efficiently because it provides detailed and highly accurate reef information, contributing to more efficient and effective business development, and to the development of the fishery industry. It can contribute greatly. In particular, the diagnosis of the fish reef collection effect according to the present invention can provide information useful in actually installing the fish reef.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of a system according to an embodiment. One embodiment is composed of the following three stages, and the effects of the present invention are maximized when these stages function organically.

Stage 1: Database of fish reef information Stage 2: Construction of fish reef management system Stage 3: Provision to government agencies, test research institutions, and fishery cooperatives (fishers)

First, the database of fish reef information will be explained. The marine version GIS (Geographical Information System) is used to create a database of fish reef information. The ocean version GIS can display a horizontal distribution map of observation data such as contour lines, and on this horizontal distribution map, fish reef positions based on accurate latitude and longitude information are plotted as marks. As link information of this mark, information such as fish reef name, type, scale, bottom sediment, single figure, layout map, underwater photograph, video image, fishing situation, etc., accumulated by government agencies, test research institutions, fishery cooperatives, etc. prepare. The link information has a specification that can be easily displayed by clicking a mark indicating a fish reef position with a mouse.

The link file can be used without particular limitation as long as it is a file (digital information) that can be opened by a personal computer used for creating a database. In addition, images that include location information and have a large file size (GeoTiff (Tiff file with coordinates) format), such as seafloor exploration images, are compressed and converted to a special image format and then pasted on the GIS. Therefore, high-speed screen display is possible. With these features, it is possible to create a database of fish reef information including the water depth and seafloor topography, which is a fundamental element of marine conditions and can be said to be a special element of sea areas different from the land.

  The fish reef information (including link information; the same applies hereinafter) is data such as characters, numerical values, charts, photographs, videos, and special images. The fish reef information shown in FIG. 1 is an example, and is not limited to that shown in the figure. Other information may be taken into the database, but it is not necessary to make all the information into a database. Each information of fish reef information is explained briefly.

Basic information 1 ... The latitude and longitude of the position of the reef and the installation date are essential information. The latitude / longitude information is necessary information for the GIS. In addition, there is information on fish reef name, reef number, reef type, reef scale, bottom sediment, and depth. The position information of the fish reef is either the case of the planned value acquired from the conventional fish reef book or the case of the actual value measured by the seafloor exploration and GPS, and is written to distinguish the two. . In a fish reef management system that uses browsing software to be described later, basic information 1 is displayed as a list on the screen.
Structure information 2 is a diagram showing a structure of a single fish reef and a layout diagram of a plurality of fish reefs. The basic information 1 is information that can be acquired from a conventional fish reef ledger.

  Seafloor exploration image 3... Image information acquired by side scan sonar. Side scan sonar is a device for exploring the shape of the seabed. For example, a side scan sonar is towed by a survey ship, and the side scan sonar transmits an ultrasonic wave that spreads in a fan shape toward the seabed, scatters on the seabed, and receives the returned ultrasonic wave. The search range is about 100 to 200 m (maximum possible up to 400 m on one side), and the water depth is about 100 m. In addition, a portable computer is connected to the personal computer that processes the measurement data of the side scan sonar of the survey ship, and the position of the searched fish reef can be grasped as accurate position information by GPS. Yes. As the position measuring device, a GPS or the like mounted on the survey ship may be used.

  The side scan sonar scans the seabed and marine structure as a measurement target with ultrasonic waves, and determines the distance and direction to the measurement target, thereby determining the shape of the measurement target. Further, the intensity of the ultrasonic wave returning from the measurement object reflects the material of the measurement object. The ultrasonic wave returning from a hard surface such as a fish reef is strong, and the ultrasonic wave returning from a soft surface such as mud is weak. By processing the returned ultrasonic data, not only the shape but also the material can be obtained. The side scan sonar can obtain an acoustic panoramic photograph (image) to be measured by processing the measurement data and displaying it in grayscale.

  FIG. 2 shows an image of the seabed at a depth of 35 m actually obtained by the side scan sonar and an enlarged view of a part thereof. These images capture a 2m square fish reef. Sidescan sonar provides a clear image of a relatively wide range of undersea fish reefs, making it easy to distinguish other target reefs in the vicinity from the target reefs in real time. Conduct research activities efficiently.

Collection status survey data (video 4a, underwater photograph 4b, visual observation result 4c)
Video image 4a... Video image (moving image) acquired by ROV (Remotely Operated Vehicle: underwater television camera robot). It is compression-encoded as necessary. The position of the fish reef is ascertained by the image of the side scan sonar, the survey ship is fixed on the reef with a spear, the observation wire with a weight on the seabed is submerged, the ROV is lowered along the observation wire, and the vicinity of the reef is photographed.
Underwater photograph 4b ... It is a still image near the fish reef acquired by ROV or an underwater camera. It is compression-encoded as necessary.
Visual observation result 4c: This is a report of the result of actual diving by a diver. It is information up to about 50m in water depth.

  Catch status data 5 ・ ・ ・ Can be obtained from the fishery management system (TAC) provided by the Japan Fisheries Information Service Center or from the database maintained by the fisheries test stations in each prefecture. .

  The fish reef management system 10 includes hardware and software. The hardware is composed of a portable personal computer (so-called notebook personal computer) and a portable GPS device. The software consists of dedicated viewer software for browsing a database created in response to a user request. This dedicated viewer software has a certain editing function.

  For example, the fish reef database covers the entire area of Japan and is stored on the server. The server is accessed, and a necessary range, for example, a database relating to the sea area is downloaded to the notebook computer. The fish reef management system 10 can freely browse the database and output a file.

  FIG. 3 shows an example of a screen display when browsing the database by the fish reef management system 10. A horizontal distribution map of an observation area such as a contour line is displayed on the screen of the computer display, and a mark corresponding to a fish reef position based on accurate latitude and longitude information is displayed on the horizontal distribution map. When the user positions the cursor at the desired mark position and clicks the mouse, the latitude and longitude of the exact position of the fish reef corresponding to the clicked mark, the link file type and the link button corresponding to the presence or absence are displayed Is done.

  When the user clicks the desired link button, the link file is opened and overlaid on the screen. In the example of FIG. 3, basic information 1 and structure information 2 are displayed as a list, and a moving image of a video image 4a taken underwater is displayed.

  Further, the fish reef management system 10 can perform navigation in a state in which a database is displayed in conjunction with a portable GPS or a GPS device provided in a survey ship. For example, a ship can be guided to a target fish reef and various reef information can be confirmed locally. In addition, since the GPS record at the time of navigation is saved as a log file, if it is reproduced by simulation, the latitude and longitude, the ground speed, and the course of movement can be confirmed and analyzed.

  A reproduction screen example of this GPS navigation data is shown in FIG. The example shown in Fig. 4 is a table in which a survey PC is brought into a survey ship and a seafloor survey image is recorded by a side scan sonar. It is an example. Since the wake data of the survey ship can be saved as a log file, it is possible to overlay the seabed exploration image and the line indicating the wake on the playback screen. The fish reef management system 10 updates the fish reef database with data actually measured by an authorized person. In the case of the fish reef database for Japan as a whole, the amount of data is extremely large, so that only the necessary area data is downloaded from the database to the notebook computer of the fish reef management system 10.

  By providing this fish reef management system 10 to related parties 11 such as administrative agencies, test and research institutions, and fishery cooperatives, it is possible to share fish reef information and foster common recognition. In particular, fishers use fish reefs, and in order to create ideal fish reefs that enable fishers to realize the economic effects, it is important for government agencies to ensure consistency with empirical knowledge. It is desirable to feed back actual information in order to reflect the empirical knowledge of the workers in the business plan. As a result, the fish reef installation plan 12 can be formulated accurately and effectively.

  A diagnosis method for diagnosing the effect of fish reef using the above-described fish reef database will be described with reference to FIG. In FIG. 5, a + mark indicates a fish reef at a position accurately specified by the fish reef database described above. The sea areas around the fish reef, for example, areas within a radius of 3 km from the fish reef are sea areas (referred to as fish reef installation sea areas) 21a and 21b where the effect of the fish reef is exerted.

  Information on the operation of fishing boats in the sea area including the sea area where the fish reef is installed is acquired. A data logger is mounted on the fishing boat that actually operates, and operation information can be obtained by the data logger. In the case of a large number of fishing boats, operation information is obtained by loading data loggers on a predetermined number of fishing boats called sample vessels. The operation information is the trace of the sample ship. In FIG. 5, a line L indicates a wake. For example, GPS positioning information can be stored in a hard disk or the like for a predetermined time, for example, every minute, and the wake L can be obtained and displayed based on the positioning information.

  Further, the speed of the sample ship can be obtained from the time change of the wake L. FIG. 6 is an example of a graph of the obtained change in speed. The vertical axis represents speed, and the horizontal axis represents time change. By analyzing this speed change, it can be determined whether the sample ship is moving or operating. For example, when the net is being drawn, it can be determined that the vehicle is in operation using the constant speed. Also, depending on the fish species, there may be cases where the ship is in a stopped state. Therefore, the speed data is analyzed according to the actual fishing method, fish type, etc. of the sample ship.

  In the example of FIG. 5, a section from position P1 to position P2, a section from position P3 to position P4, a section from position P5 to position P6, and a section from position P7 to position P8 are sections during fishing boat operation. . These sections almost include the reef installation sea areas 21a and 21b. Empirically or from the reef database, fishermen often know the area where the reef is located in advance, so they often operate near the area where the reef is located.

  The collection effect of the fish reef is determined based on the catch information on all the sections during the fishing boat operation. The catch information can be obtained directly from the sample vessel, and since the catch information for each day is provided, it is possible to obtain the desired catch information via the Internet. For example, in the example of FIG. 5, the collection effect of the fish reef installation sea areas 21a and 21b can be diagnosed from the catch information. Moreover, the collection effect in each fish reef installation sea area can be diagnosed by investigating a catch amount for every fish reef installation sea area. In order to make an accurate diagnosis, it is necessary to correct the catch based on the ratio of the section that overlaps the sea area where the reef is set during operation. For example, when the reef installation sea area of the section in operation overlaps at a rate of 60%, it is necessary to treat this catch multiplied by 0.6 as the catch.

  As described above, the accuracy of reef collection is accurately determined based on accurate reef location information specified by the reef database, accurate operation information based on data logger data analysis, and actual catch information on the area where the reef is installed. Can be diagnosed. Based on the diagnosis result, the fish reef business such as the planning of the fish reef installation plan can be made cost-effective.

  With respect to the business model of one embodiment of the present invention shown in FIG. 1, the following content creation and services can be provided so that the user can construct his own database, and can be used as a regular income source. .

(1) To provide a fish reef management system that can be easily operated even by a user unfamiliar with computer operation and can browse information on a target fish reef at a low cost. The fish reef management system consists of softwareware, a laptop computer, and a GPS device. It is customized according to the user's usage environment and purpose, and a user-friendly system is constructed and provided.

(2) To develop advanced and multi-faceted consulting services such as improving the accuracy of fish reef management technology and providing methods and information for more effective reef installation planning through database modifications / additions and interface improvements. Can do.

  Although the embodiment of the present invention has been specifically described above, the present invention is not limited to the above-described embodiment, and various modifications based on the technical idea of the present invention are possible.

It is a basic diagram which shows the system of one Embodiment of this invention. It is a basic diagram which shows an example of the seabed search image acquired by the side scan sonar, and its partially enlarged image. It is a basic diagram which shows an example of the display screen of a fish reef information database. It is a basic diagram which shows an example of the reproduction | regeneration screen of GPS navigation data. It is a basic diagram used for description of the collection effect diagnostic system of a fish reef. It is an example of the speed data obtained by analyzing the measurement data of the data logger loaded on the ship.

Explanation of symbols

1 Basic information of fish reef database 2 Structure information 3 Seafloor exploration image 10 Fish reef management system 21a, 21b Fish reef installation sea area L Sample track

JP 2001-074834 A

This invention relates to reef installation information management system applied to the management of the information related to the installation of such fish reef.

In Japan, fish reefs such as artificial reefs and natural reefs are used by many fishermen and fishers, so most of the reef installations are implemented as public works. From the viewpoint of cost effectiveness invested (for example, collection effect, collection means that many fish are gathered in one place), not only the governmental organization that plans the project, but also the reef development manufacturer, construction Information collaboration with traders, testing and research institutions, fishery cooperatives, and local fishermen is essential.

Therefore, the first object of the present invention is to use an oceanic version GIS (Geographical Information System) to construct an integrated reef database of reef detailed information with high positional accuracy and excellent operability. The object is to provide a reef installation information management system that allows anyone from government agencies to fishermen to easily view the contents of the reef database.

The second object of the present invention is to directly view the seabed in addition to general reef information such as the name of the reef, the type of reef, the latitude and longitude of the installation position, the single figure of the reef, the layout of the reef, etc. It is an object of the present invention to provide a reef installation information management system capable of surveying a fish reef on the spot while displaying a seafloor exploration image acquired using a side scan sonar among information under special conditions that cannot be performed.

The third object of the present invention is to provide the above-described offshore structure installation information management system at a low cost and share the database incorporated in advance, thereby reflecting the fisherman's empirical knowledge in the reef business plan. The object is to provide a reef installation information management system that can function as a feedback system and enable more effective reef business development.

A fourth object of the present invention is to make it possible to diagnose the collection effect of a school of fish on an actual fish reef based on accurate fish reef position information based on the above-described fish reef installation information management system.

In order to solve the problems described above, the present invention comprises a database consisting of information on fish reefs and a browsing system for browsing the database.
In the database, marks corresponding to the position of the reef based on accurate location information are displayed on the oceanographic geographic information system that can display contour lines,
The data file of the seafloor exploration image information including the image of the fish reef corresponding to the mark and the surrounding seabed is stored in association with each other,
In browsing system, by clicking on the mark, the window is displayed, a fish reef installation information management system adapted by clicking a desired icon in the window to display the bottom detecting image information,
Undersea exploration images
A ship equipped with a side-scan sonar that explores the shape of the seabed, a positioning device, and a computer that analyzes the images obtained by the side-scan sonar navigates,
This is a fish reef installation information management system in which a fish reef is searched based on a seabed exploration image, and the position of the searched fish reef is acquired by a positioning device .

It is preferable that the link information further includes information on the installation date of the fish reef .

Preferably, the browsing system can take in the positioning information by the positioning device,
Even at sea, while displaying the latitude and longitude of the image obtained and marine by side-scan sonar in real time, while being possible to browse the link information, stores the log file during navigation,
The saved log file is simulated and reproduced on the ground , and the latitude and longitude, time, speed, and course of the moving ship are analyzed .

Furthermore, in the sea area where the fish reef specified by the database is operated,
Acquire and save the wake of fishing boats operating in the sea area
Set the sea area near the location of the fish reef ,
Obtain the actual catch information in the area where the nearby sea area and the wake overlap ,
You diagnose the throng effect of the fish from the acquired catch information to the fish reef.

A diagnosis method for diagnosing the effect of fish reef using the above-described fish reef database will be described with reference to FIG. In FIG. 5, a + mark indicates a fish reef at a position accurately specified by the fish reef database described above. Ranging from sea e.g. reef within 3km radius around the reef is (referred to as a fish reef installation sea area) sea area over which the effect of the reef 21a, are 21b.

In order to solve the problems described above, the present invention comprises a database consisting of information on fish reefs and a browsing system for browsing the database.
In the database, marks corresponding to the position of the reef based on accurate location information are displayed on the oceanographic geographic information system that can display contour lines,
The data file of the seafloor exploration image information including the image of the fish reef corresponding to the mark and the surrounding seabed is stored in association with each other,
In the browsing system, by clicking a mark, a window is displayed, and a desired icon in the window is clicked to display the seafloor exploration image information.
Navigation based on the position of the reefs in the database for ships equipped with a side scan sonar that explores the shape of the seabed, a positioning device, and a computer that analyzes the images obtained by the side scan sonar ,
Save the seafloor image of the side scan sonar and the log file of the ship at sea ,
Play the simulation of the saved log file on the ground, analyze the latitude and longitude, time, speed, course of the moving ship,
The position of the reef is measured from the saved seafloor exploration image and the latitude and longitude of the ship, time, speed, and course,
This is a fish reef installation information management system in which the position of the fish reef on the database is updated according to the measured position of the fish reef .

Claims (4)

It consists of a database consisting of information on offshore structures and a browsing system that browses the above database.
In the database, a mark corresponding to the position of the marine structure based on accurate position information is displayed on an oceanographic geographic information system capable of displaying contour lines,
A data file of link information related to the marine structure corresponding to the mark is held in association with each other,
A marine structure installation information management system in which a window is displayed by clicking the mark in the browsing system, and the link information is displayed by clicking a desired icon in the window. In claim 1,
The link information is an offshore structure installation information management system including at least information on the latitude and longitude of the position of the offshore structure, installation date, and a seabed exploration image. In claim 1,
It is possible for the browsing system to capture positioning information from the positioning device,
Even at sea, the above-mentioned link information can be browsed while displaying the latitude and longitude on the database screen in real time, and if the saved log file at the time of navigation is simulated and reproduced, the latitude and longitude during movement, time, Offshore structure installation information management system that can analyze speed and course. In claim 1,
An offshore structure installation information management system capable of diagnosing the collection effect of a school of fish on the offshore structure based on the position information on the offshore structure, fishing boat operation information, and actual catch information.