JP6356204B2 - Marine environment information acquisition system - Google Patents

Description

  The present invention relates to a marine environment information acquisition system capable of grasping natural information, fish school information, etc. on the ground in the vicinity of marine facilities such as a stationary net.

  Marine facilities such as stationary nets may be installed in the ocean. It is important to obtain various kinds of information in the vicinity of the stationary net in order to efficiently obtain the catch for such a stationary net. For example, it is important to grasp natural information such as water temperature and ocean current, and fish school information near a stationary net.

  In order to obtain such information, it is wasted time and fuel cost to always collect information by leaving the ship to the stationary net. Therefore, it is desirable to acquire various information near the stationary network on the ground. If such information can be obtained on the ground, it is only necessary to take a ship to the stationary network at an optimal timing, which is very efficient. Thus, by knowing the fishing ground environment (information), fishermen's cooperatives, fishermen, etc. can carry out efficient fishery activities such as materials for judging sea conditions such as weathering and prediction of fishing time. In addition, public organizations such as fisheries test stations can predict and analyze changes in fishery resources associated with changes in the marine environment by grasping coastal environment data.

  As a method for obtaining such various information in the ocean, there is a method for obtaining such information on the ground by transmitting information on the ground to the ground using a wireless system (Patent Document 1).

JP 11-29884 A

  However, the wireless system as in Patent Document 1 is very expensive. There is also a problem such as communication failure due to such a failure of the wireless system itself. Therefore, in order to grasp information in the vicinity of the stationary network on the ground, a lower cost and higher reliability system is desired.

  The present invention has been made in view of such problems, and an object thereof is to provide a marine environment information acquisition system that is low in cost and high in reliability.

In order to achieve the above-described object, the present invention provides a marine facility installed in the ocean, a cable connected to the marine facility, and an information acquisition unit that is connected to the cable and acquires information in the vicinity of the marine facility. A marine environment information acquisition system near a marine facility capable of transmitting the information acquired by the information acquisition means to the land using the cable and confirming the information on the land, The marine equipment is connected to a marine equipment rope laid to the land, the cable is an optical cable having an optical fiber , woven into the marine equipment rope, and the information acquisition means measures at least a water temperature. A temperature sensor, a sensor for acquiring tidal current information, or a sensor for acquiring salinity concentration information, the optical cable, Marine environment information characterized in that the sensor is connected in a sealed junction box and the sensor is driven by converting light transmitted through a part of the optical fiber of the optical cable into electric power by a photoelectric converter. It is an acquisition system. Further, the marine facility installed in the ocean, a cable connected to the marine facility, and an information acquisition unit that is connected to the cable and acquires information in the vicinity of the marine facility, the information acquisition unit A marine environment information acquisition system in the vicinity of marine equipment capable of transmitting the obtained information to the land by the cable and confirming the information on the land, wherein the marine equipment is laid to the land Connected to a marine equipment rope, the cable is an optical cable having an optical fiber , woven into the marine equipment rope, and the information acquisition means includes at least a temperature sensor for measuring the water temperature, An optical fiber temperature sensor that directly measures the water temperature using a part of the optical fibers of the optical cable. It may be a Temu. The marine facility is preferably a stationary net installed in the ocean. The marine environment information refers to all information in the ocean such as water temperature information, tidal current information, salinity concentration information, and fish school information.

  In this way, since information from various sensors in the vicinity of the marine facility is transmitted to the ground by wire instead of wirelessly, an expensive wireless system becomes unnecessary. Therefore, the cost is low, and there is no risk of a wireless system failure or the like.

In this way, since the transmission cable to the marine facility is an optical cable, there is no fear of leakage in the cable. In particular, this system requires a relatively high voltage in order to transmit information and power for driving using a power cable because the distance from the land to the marine facilities is long. Therefore, there is a risk of dielectric breakdown of the power cable. However, with an optical cable, there is no fear of such dielectric breakdown. In addition, laying the rope for the marine equipment by knitting the cable into the rope for the marine equipment in this way
At the same time, cable laying can be completed. Moreover, since a cable is not exposed to the outer periphery of a rope for marine facilities, it is possible to prevent the cable from being damaged during laying or the like.

  Further, since the temperature sensor for detecting the water temperature, which is important information, is an optical fiber temperature sensor using an optical fiber, driving of the temperature sensor and electric power for transmitting information are unnecessary.

  The information acquisition means includes at least a power driving device, and the optical cable and the power driving device are connected by a sealed connection box, and light transmitted through a part of the optical fiber of the optical cable is converted into power by a photoelectric converter. It is desirable to drive the electric power drive device by converting to.

  As described above, power driving devices such as a fish finder driven by electricity can be driven by converting the light transmitted by the optical cable into electric power in the vicinity of the marine facility. For this reason, it is not necessary to lay a driving power cable between the land and the stationary network.

  Thus, by knitting the cable into the marine equipment rope, the cable laying can be completed simultaneously with the laying of the marine equipment rope. Moreover, since a cable is not exposed to the outer periphery of a rope for marine facilities, it is possible to prevent the cable from being damaged during laying or the like.

  The sealed junction box may be submerged from the sea near the offshore facility, and the sealed junction box may be suspended above the sea near the stationary net.

  By arranging the sealed connection box to sink from the sea, it is possible to suppress a large bending deformation or the like from being imparted to the cable exposed from the sealed connection box due to the influence of waves or changes in tide level. On the other hand, by floating the sealed connection box on the sea, it is less susceptible to water pressure than when it is submerged in the sea, and it is easy to pull up the sealed connection box on the ship when performing connection work etc. It becomes.

  According to the present invention, it is possible to provide a marine environment information acquisition system with low cost and high reliability.

1 is a schematic configuration diagram showing a marine environment information collection system 10. FIG. (A) is the figure which shows the state which fixed the optical fiber cable 5 to the rope 3 for stationary nets with a fixing member, (b) is the figure which shows the state which braided the optical fiber cable 5 in the rope 3 for stationary nets, (c) is ( The sectional view on the AA line of b). 1 is a block diagram showing a configuration of a marine environment information collection system 10. FIG. The hardware block diagram which shows the marine environment information collection apparatus. The block diagram which shows the structure of the marine environment information sharing system 40. FIG.

  Hereinafter, a marine environment information collecting system according to an embodiment of the present invention will be described. FIG. 1 is a schematic configuration diagram showing a marine environment information collection system 10. The marine environment information collection system 10 mainly includes a marine environment information collection device 1, a stationary network rope 3, an optical fiber cable 5, a closure 11, a stationary network 13, and the like. The marine environment information collection system 10 is a system that acquires marine environment information in the vicinity of the stationary network 13, for example.

  The marine environment information collection device 1 is installed on the ground. The marine environment information collection device 1 is a computer, for example, and is connected with a power cable and a network cable (not shown). Details of the marine environment information collection device 1 will be described later.

  An optical fiber cable 5 is connected to the marine environment information collecting apparatus 1 via a photoelectric converter, a connector, etc. (not shown). As the optical fiber cable 5, for example, a multi-core optical fiber in which a plurality of tape core wires are provided in a groove provided in the outer periphery of the slot and a tension member is provided therein can be used. A core optical fiber or a single fiber may be used. A waterproof sheath is provided on the outer periphery of the slot.

  The optical fiber cable 5 is integrated with the stationary network rope 3 on land. FIG. 2A is a view showing an example in which the optical fiber cable 5 and the stationary network rope 3 are combined. The optical fiber cable 5 is fixed along the fixed net rope 3 by a fixing member 15 such as a band or a string member. The optical fiber cable 5 may be provided with some extra length between the fixing portions by the fixing member 15 so as to follow the bending of the stationary net rope 3.

  In addition, as shown in FIG. 2B, the optical fiber cable 5 may be knitted integrally with the stationary net rope 3. FIG.2 (c) is the sectional view on the AA line of FIG.2 (b). As shown in FIG.2 (c), as for the rope 3 for stationary net | networks, the some wire rope 3a is twisted together and the fiber rope 3b etc. are provided in the outer periphery. In such a case, for example, the optical fiber cable 5 can be knitted into a gap between the wire rope 3a and the fiber rope 3b. The cross-sectional structure of the stationary net rope 3 is not limited to the illustrated example. Regardless of the cross-sectional structure of the stationary net rope 3, the stationary net rope 3 and the optical fiber cable 5 can be integrated by weaving the optical fiber cable 5 into a gap such as a strand.

  As shown in FIG. 1, the rope 3 for stationary net | network is moored on the ground, laid in the sea or on the sea, and the other end is joined to the stationary net | network 13 which is the marine installation provided in the ocean. In the area close to the land, the stationary net rope 3 is submerged in the seabed so that it does not interfere with other fishing boats, etc. Bring up to the sea. At this time, the protective pipe 7 is provided on the rope 3 for the stationary net in a range that can be submerged in the seabed. The protective tube 7 is a flexible tube made of resin, for example. By using the protective tube 7, it is possible to prevent the stationary network rope 3 and the optical fiber cable 5 from being damaged by contact with the seabed due to the influence of the ocean current or the like.

  The fixed net rope 3 is laid on the sea up to the fixed net 13 by buoys 9 at predetermined intervals. A closure 11 that is a sealed connection box is provided in the vicinity of the stationary net 13. An optical fiber cable 5 separated from the stationary net rope 3 in the vicinity of the closure 11 is introduced into the closure 11. In the closure 11, various information acquisition means are connected to the optical fiber cable 5. The information acquisition means is arranged in the vicinity of the stationary network 13. Various marine environment information in the vicinity of the stationary net 13 can be obtained by the information acquisition means.

  The closure 11 may be placed in the sea in the vicinity of the stationary net 13. For example, the closure 11 may be fixed to a rope or the like mooring the stationary net 13 and the closure 11 may be disposed at a predetermined depth from the sea surface. By doing in this way, the closure 11 can be made hard to receive the influence of a wave and a tide level change. Therefore, it is possible to suppress excessive bending deformation or the like from being applied to the cables drawn from the closure 11. In this case, a structure capable of adjusting the buoyancy may be provided so that the closed closure 11 does not float.

  Further, the closure 11 can be suspended on the sea in the vicinity of the stationary net 13. For example, the buoy 9 near the stationary net 13 may be fixed. By doing in this way, the influence of the water pressure given to the closure 11 can be made small, and since the position of the closure 11 can be easily grasped, maintenance and the like are easy. In this case, a structure for improving buoyancy may be provided so that the closure 11 does not sink.

  Next, details of the marine environment information collection system 10 will be described. FIG. 3 is a block diagram showing the configuration of the marine environment information collection system 10. In the connector portion 18, each optical fiber core wire of the optical fiber cable 5 is branched, and light is introduced from the light source 17 into a part of the optical fiber core wires of the optical fiber cable 5.

  The optical fiber core wire into which the light is introduced is laid to the closure 11 together with the stationary network rope 3. In the closure 11, the optical fiber core wire is connected to the photoelectric converter 19. The photoelectric converter 19 converts light into electric power. That is, the light introduced into the optical fiber core and transmitted to the closure 11 is converted into electric power by the photoelectric converter 19.

  A power feeding unit 21 is connected to the photoelectric converter 19 via a power cable. The power supply unit 21 supplies power to a device (information acquisition unit) driven by power. In the illustrated example, a fish finder 23 is connected to the power supply unit 21.

  The fish finder 23 drawn from the closure 11 oscillates and receives ultrasonic waves toward the seabed. The obtained information is converted again into an optical signal by the photoelectric converter 19. A part of the optical fiber of the optical fiber cable 5 is connected to the photoelectric converter 19, and is laid to the connector unit 18 together with the stationary network rope 3.

  An optical fiber core wire that transmits fish school information (marine environment information) from the fish finder 23 is connected to the photoelectric converter 27 at the connector unit 18 and is sent to the marine environment information collecting apparatus 1 as an electrical signal.

  As other information acquisition means, for example, a temperature sensor or the like is used. The temperature sensor may be driven by electric power in the same manner as the fish detector 23. However, as shown in the figure, by using the optical temperature sensor 25, the temperature can be directly measured by an optical fiber core. As described above, when the optical temperature sensor 25 is used, a driving power source for the temperature sensor or the like becomes unnecessary. The water temperature information (marine environment information) obtained by the light temperature sensor 25 is sent directly to the photoelectric converter 27 as light and is sent to the marine environment information collecting apparatus 1 as an electrical signal.

  The sensor for acquiring marine environment information in the vicinity of the stationary network 13 is not limited to the example shown in the figure, and various information driven by electric power or light for acquiring tidal current information, salinity concentration information, video information, etc. Equipment can be used.

  Next, the marine environment information collection device 1 will be described. FIG. 1 is a hardware configuration diagram showing the marine environment information collecting apparatus 1. The marine environment information collection device 1 is, for example, a computer, and includes a control unit 33, a storage unit 35, a media input / output unit 37, a communication control unit 39, an input unit 41, a display unit 43, a peripheral device I / F unit 45, and the like. They are connected via a bus 47.

  The control unit 33 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The CPU calls a program stored in the storage unit 35, ROM, recording medium or the like to a work memory area on the RAM, executes it, controls driving of each device connected via the bus 47, and marine environment information collecting device The processing performed by 1 is realized.

  The ROM is a non-volatile memory and permanently holds a computer boot program, a program such as BIOS, data, and the like. The RAM is a volatile memory, and temporarily holds a program, data, and the like loaded from the storage unit 35, ROM, recording medium, and the like, and includes a work area used by the control unit 33 for performing various processes.

  The storage unit 35 is an HDD (hard disk drive) or SSD (flash SSD) (solid state drive), and stores a program executed by the control unit 33, data necessary for program execution, an OS (operating system), and the like. As for the program, a control program corresponding to an OS (operating system) and an application program corresponding to processing described later are stored. Each of these program codes is read by the control unit 33 as necessary, transferred to the RAM, read by the CPU, and executed as various means. The storage unit 35 stores various data used in the present invention.

  The media input / output unit 37 (drive device) performs data input / output. For example, a floppy (registered trademark) disk drive, a CD drive (-ROM, -R, RW, etc.), a DVD drive (-ROM, -R, -RW etc.) and media input / output devices such as MO drives.

  The communication control unit 39 has a communication control device, a communication port, and the like, and is a communication interface that mediates communication between the computer and the network. For example, the control unit 33 transmits weather information and temperature information on the Internet via the network. Can be obtained from.

  The input unit 41 inputs data and includes, for example, a keyboard, a pointing device such as a mouse, and an input device such as a numeric keypad. An operation instruction, an operation instruction, data input, and the like can be performed on the computer via the input unit 41.

  The display unit 43 includes a display device such as a CRT monitor and a liquid crystal panel, and a logic circuit (such as a video adapter) for realizing a video function of a computer in cooperation with the display device.

  The peripheral device I / F (interface) unit 45 is a port for connecting a peripheral device to the computer, and the computer transmits and receives data to and from the peripheral device via the peripheral device I / F unit 45.

  The bus 47 is a path that mediates transmission / reception of control signals, data signals, and the like between the devices.

  As shown in FIG. 1, when the laying of the stationary net rope 3 and the optical fiber cable 5 is completed, the control unit 33 causes the light source 17 to emit light and drives each information acquisition device. Further, the control unit 33 acquires information (water temperature information, tidal current information, salinity concentration information, fish school information, etc.) from each information acquisition device continuously or every predetermined time, and stores it in the storage unit 35. . In addition, based on the obtained information, the control part 33 can also compare with the information previously memorize | stored in the memory | storage part 35, and can also perform catch prediction with the present condition. For example, the correlation between past temperature information, tidal current information, fish school information, and catch information is stored in the storage unit 35, and the past temperature information, tidal current information, and fish school information are compared with each other. On the other hand, it is also possible to predict the current catch.

  The information acquired by the control unit 33 can be displayed on the display unit 43 and the like in real time. The control unit 33 can also send the obtained information to another server in real time or at a predetermined interval.

  FIG. 5 is a block diagram showing the marine environment information supply system 50. The control unit 33 can store various information collected by the marine environment information collection device 1 in a server 53 connected to the marine environment information collection device 1 directly or via a network. The server 53 is a computer, for example, and has the same structure as the marine environment information collection device 1.

  Various types of information stored in the storage unit of the server 53 can be viewed on each terminal 55 via the network 51. The control unit of the server 53 can also automatically transmit various types of information to each terminal 55. The network 51 that transmits information from the server 53 to each terminal 55 may be wireless or wired.

  Thus, according to the present embodiment, marine environment information in the vicinity of the stationary network 13 can be obtained on the ground without using a wireless system. Therefore, it is not necessary to use an expensive wireless system, and there is no problem such as failure of the wireless system.

  Moreover, there is no fear of electric leakage etc. by using the optical fiber cable 5 as a transmission cable. In this case, by using a sensor using light such as a light temperature sensor, marine environment species information can be acquired only by light.

  For sensors that require power, the use of a power cable can be minimized by using the photoelectric converter 19 that converts light into power.

  Further, since the optical fiber cable 5 is laid together with the stationary net rope 3, the laying operation is easy and the occurrence of breakage and the like can be suppressed. In addition, the optical fiber cable 5 can be easily collect | recovered with the rope 3 for stationary nets after use.

  As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

  For example, in the above-described embodiment, the example using the optical fiber cable 5 is shown, but the present invention is not limited to this. For example, the power cable may be integrated with the stationary net rope 3. In this way, the photoelectric converter becomes unnecessary, and various information acquisition devices that are driven by electric power can be used. Moreover, although the example applied to a stationary net | network was demonstrated as a marine facility, if it is a marine facility which is installed in the ocean and a rope etc. is laid to the land, it may apply also to other marine facilities, such as a buoy, for example. Can do.

1 ... Marine environment information collecting device 3 ... Rope for stationary net 3a ... Wire rope 3b ... Fiber rope 5 ... Optical fiber cable 7 ... Protection tube 9 ... Buoy 10 ... Marine environment information collection system 11 ..... Closure 13 ..... Stationary network 15 ..... Fixing member 17 ..... Light source 18 ..... Connector parts 19, 27 ..... Photoelectric converter 21 ..... Feeding unit 23. ... Fish detector 25 ......... Light temperature sensor 33 ......... Control unit 35 ......... Storage unit 37 ......... Media input / output unit 39 ......... Communication control unit 41 ......... Input unit 43 ......... Display unit 45 ......... Peripheral equipment I / F unit 47 ......... Bus 50 ......... Marine environment information sharing system 51 ......... Network 53 ......... Server 55 ......... Terminal

Claims (6)

Offshore equipment installed in the ocean;
A cable connected to the marine facility;
Information acquisition means connected to the cable and acquiring information near the marine facility;
Comprising
The information acquired by the information acquisition means is transmitted to the land by the cable, and is a marine environment information acquisition system in the vicinity of marine equipment capable of confirming the information on land
The marine facility is connected to a marine facility rope laid to the land,
The cable is an optical cable having an optical fiber, woven into the rope for marine facilities,
The information acquisition means includes at least a temperature sensor that measures water temperature, a sensor that acquires tidal current information, or a sensor that acquires salinity concentration information,
The optical cable and the sensor are connected in a sealed connection box,
The marine environment information acquisition system, wherein the sensor is driven by converting light transmitted through a part of the optical fiber of the optical cable into electric power by a photoelectric converter. Offshore equipment installed in the ocean;
A cable connected to the marine facility;
Information acquisition means connected to the cable and acquiring information near the marine facility;
Comprising
The information acquired by the information acquisition means is transmitted to the land by the cable, and is a marine environment information acquisition system in the vicinity of marine equipment capable of confirming the information on land
The marine facility is connected to a marine facility rope laid to the land,
The cable is an optical cable having an optical fiber, woven into the rope for marine facilities,
The information acquisition means includes at least a temperature sensor that measures a water temperature,
The marine environment information acquisition system, wherein the temperature sensor is an optical fiber temperature sensor that directly measures a water temperature using a part of optical fibers of the optical cable.   The marine environment information acquisition system according to claim 1, wherein the sealed junction box is submerged from the sea near the marine facility.   The marine environment information acquisition system according to claim 1, wherein the sealed connection box is floated on the sea near the marine facility. The marine equipment, marine environmental information acquisition system according to any one of claims 1 to 4, characterized in that the fixed nets to be installed in the ocean. The information acquisition means includes at least a power drive device,
The optical cable and the power driving device are connected by a sealed connection box,
The light transmitting part of the optical fiber of the optical cable, by converting the power through photoelectric converter according to any one of claims 1 to 5, characterized in that for driving the power-driven device Marine environment information acquisition system.

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