JP2005308523A - Hose line shape monitoring system and marine hose - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hose line shape monitoring system capable of always confirming easily the shape of a hose line in spite of a bad weather or the like, and a marine hose used therefor. <P>SOLUTION: This system is constituted of GPS receiving means 13 installed at prescribed intervals on the hose line HL formed by connecting a plurality of marine hoses, for measuring the position based on a signal received from a GPS satellite 12; and a monitoring means 20 installed on the monitoring base side, for analyzing the shape of the hose line HL by receiving position data transmitted from each GPS receiving means 13. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hose line shape monitoring system and a marine hose using GPS (Global Positioning System), and more specifically, a hose line shape monitoring that can always confirm the shape of a hose line regardless of bad weather. The present invention relates to a system and a marine hose used for the system.

  A hose line formed by connecting a number of marine hoses when a fluid such as oil is transported by sea between land and a ship is used. In recent years, ships have been unable to enter harbors due to the increase in size, and sometimes they are anchored on the sea several kilometers away to load and unload fluids.

  The above-mentioned hose lines are usually composed of hose lines that float on the sea up to buoys that float several hundred meters away from land and ships, and hose lines that sink into the sea so as not to hinder ship navigation. Like to do. The portion of the hose line used between the offshore buoy and the ship is left floating on the sea as it is when no transfer work is performed.

  For this reason, accidents in which hose lines are wound around buoys due to changes in ocean currents often occur. Therefore, even when it is not a transfer operation that does not use the hose line, the worker performs the work of monitoring the shape of the hose line day and night.

  Conventionally, a marine hose equipped with a flushing light has been proposed in order to facilitate monitoring of the shape of the hose line (for example, Patent Document 1). This facilitates confirmation of the hose line shape at night.

However, there was a problem that it was difficult to check day and night because the field of view was blocked during bad weather. Moreover, even when it is several kilometers away from the land, it is difficult to visually confirm the shape of the hose line from the land, and the improvement has been strongly demanded.
JP 2000-310364 A

  An object of the present invention is to provide a hose line shape monitoring system and a marine hose used for the hose line shape monitoring system that can always easily check the shape of the hose line regardless of bad weather.

  The hose line shape monitoring system of the present invention that achieves the above object is a GPS receiving means for measuring a position based on a signal received from a GPS satellite, installed at a predetermined interval on a hose line formed by connecting a plurality of marine hoses. And monitoring means installed on the monitoring base side for receiving position data transmitted from each GPS receiving means and analyzing the shape of the hose line.

  Another hose line shape monitoring system according to the present invention includes a transmission unit that is installed at a predetermined interval on a hose line formed by connecting a plurality of marine hoses, and that transmits a signal received from a GPS satellite to the monitoring base side. A monitoring means provided on the base side, comprising a GPS receiving device for measuring a position based on a signal received from each transmitting means, and a computer for analyzing the shape of the hose line based on the position data from the GPS receiving device. It is characterized by consisting of.

  The marine hose of the present invention is characterized in that a GPS receiving means capable of measuring a position based on a signal received from a GPS satellite and transmitting the position data to the monitoring base side is attached.

  Another marine hose of the present invention is characterized in that a transmission means capable of transmitting a signal received from a GPS satellite to the monitoring base side is attached.

  According to the present invention described above, the hose line shape can be specified using a signal received from a GPS satellite, so even if the field of view is interrupted during bad weather, the hose line shape can be confirmed regardless of day or night. In addition, it can be easily confirmed even when it is several kilometers away from the land, and therefore the hose line shape can always be easily confirmed regardless of various conditions such as bad weather.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 shows an example of a hose line to which the shape monitoring system of the present invention is attached. The hose line HL has a configuration in which a plurality of marine hoses 1 are connected. Each marine hose 1 has a hose body 2 and connecting portions 3 fixed at both ends thereof.

  As shown in FIG. 2, the hose body 2 includes an inner rubber layer 4, a main reinforcing layer group 5, a main body wire layer 6, a fluid retention layer 7, an auxiliary reinforcing layer group 8, from the hose inner peripheral side toward the outer peripheral side. The float layer 9 and the outer rubber layer 10 are sequentially laminated.

  The main reinforcing layer group 5 is composed of a plurality of reinforcing layers formed by rubber-covering reinforcing cords made of organic fiber cords inclined with respect to the hose longitudinal direction. Adjacent reinforcing layers intersect with each other with their reinforcing cords inclined in the direction opposite to the longitudinal direction of the hose, and the main reinforcing layer group 5 is a pressure-resistant layer against the fluid transferred inside the inner rubber layer 4. And acting as a tensile strength layer. The number of reinforcing layers in the main reinforcing layer group 5 can be, for example, 14 to 20 layers.

  The main body wire layer 6 is configured by embedding a metal wire 6b spirally wound in the rubber layer 6a, and imparts external pressure resistance and kink resistance to the hose body 2.

  The fluid retaining layer 7 is made of sponge rubber, foamed polyurethane, or the like, and retains the fluid that has flowed out due to the damage of the main reinforcing layer group 5 here.

  The auxiliary reinforcing layer group 8 is composed of a plurality of reinforcing layers formed by rubber-covering reinforcing cords made of organic fiber cords inclined with respect to the hose longitudinal direction. Adjacent reinforcing layers intersect with each other with their reinforcing cords inclined in the direction opposite to the longitudinal direction of the hose. In the auxiliary reinforcing layer group 8, fluid that has flowed out to the fluid retaining layer 7 due to breakage of the main reinforcing layer group 5 It has the function of a protective layer that prevents it from flowing out. For the auxiliary reinforcing layer group 8, about 20 reinforcing layers are used.

  The float layer 9 is made of a foam material such as sponge rubber or foamed polyurethane, and makes the marine hose 1 float on the sea.

  The connecting portion 3 includes a cylindrical nipple 3A and a connecting flange 3B projecting radially outward from the tip of the nipple 3A. The nipple 3A is fixed to the inner peripheral side of the hose body 1 while being connected. The marine hoses 1 are connected and fixed to each other by bolts and nuts (not shown) via the flange 3B.

  As shown in FIG. 1, the predetermined number of marine hoses 1 are each provided with a connecting ring 11 between connecting portions 3, and are connected via bolts and nuts (not shown) via the connecting ring 11.

  As shown in FIGS. 1 and 3, GPS receiving means 13 for measuring a position based on a signal received from a GPS satellite 12 is installed in each connection ring 11 arranged at a predetermined interval on the hose line HL. .

  As shown in FIG. 4, the GPS receiver 13 includes a GPS antenna 14 that receives a signal from the GPS satellite 12, a GPS receiver 15 that measures a position based on the signal received by the antenna 14, and a GPS receiver 15. Is provided on the surface of the connecting ring 11 in a state of being housed in a drip-proof sealed container.

  On the side of the monitoring base installed on land, monitoring means 20 for receiving the position data transmitted from the GPS receiving means 13 and analyzing the shape of the hose line HL is installed.

  The monitoring means 20 is analyzed by a receiver 21 that receives position data from the transmitter 16, a calculator 22 that analyzes the shape of the hose line HL based on the position data received by the receiver 21, and the calculator 22. The hose line HL has a display device 23 for displaying the shape.

  In the present invention using the GPS described above, each GPS receiver 15 that has received signals from four or more GPS satellites 12 via the GPS antenna 14 causes the GPS receiving means 13 to The attached position is measured and analyzed to calculate its position data, and the position data is transmitted from the transmitter 16 to the receiver 21 of the monitoring means 20 on the monitoring base side.

  The position data received by the receiver 21 is input to the calculator 22 where the shape of the hose line HL is analyzed based on each position data. The shape of the hose line HL obtained by the analysis is displayed on the display 23a of the display device 23, and the operator confirms the actual shape of the hose line HL from the hose line shape displayed on the display 23a.

  As described above, in the present invention, the GPS receiving means 13 is installed at a predetermined interval on the hose line HL, while the monitoring base receives the position data transmitted from each GPS receiving means 13 and analyzes the hose line shape. Since the means 20 is provided, the hose line shape can be confirmed regardless of day or night even if the field of view is obstructed by bad weather, and it is easily confirmed even if it is several kilometers away from the land. The hose line shape can always be easily confirmed regardless of various conditions such as bad weather. Therefore, it is possible to prevent an accident in which the hose line HL is wound around the buoy and damaged.

  Further, since the hose line shape can be confirmed in the monitoring base, monitoring can be performed easily and safely.

  Moreover, even if it is a large-scale apparatus including power supplies, such as a solar cell, it can attach easily by using the connection ring 11 for the connection between the marine hoses 1 and attaching the GPS receiving means 13 to the connection ring 11. .

  FIG. 5 shows another example of the hose line shape monitoring system of the present invention, which employs RTK (Real Time Kinematic) -GPS, and based on the signal received from the GPS satellite 12 on the monitoring base side, A reference GPS receiving means 30 for measuring the position is installed.

  This base-side reference GPS receiving means 30 includes a GPS antenna 31 that receives a signal from the GPS satellite 12, a GPS receiving device 32 that measures the position of the base based on the signal received by the antenna 31, and the GPS reception. A transmitter 33 that transmits data measured by the device 32 to the GPS receiving means 13 on the hose line side is provided. Each GPS receiving means 13 includes a receiver 17 that receives data from the transmitter 33.

  The GPS receivers 15 and 32 measure the phase at both positions, and each GPS receiver 15 receives the data including the phase data transmitted from the reference GPS receiver 30 and the reception received via the GPS antenna 14. By analyzing the data in real time, position data specifying the position where the GPS receiving means 13 is attached is obtained, and the position data is transmitted from the transmitter 16 to the receiver 21 of the monitoring means 20 on the monitoring base side. The computer 22 analyzes the hose line shape based on the position data obtained by correcting the data obtained by the GPS receiving means 13 of the hose line based on the data obtained by the reference GPS receiving means 30 as described above, and the hose line shape. Is displayed on the display 23 a of the display device 23. This makes it possible to display the position with an error of several centimeters by greatly reducing the error factor.

  FIG. 6 shows still another example of the hose line shape monitoring system of the present invention, in which a transmission means 40 for transmitting signals received from the GPS satellites 12 at predetermined intervals to the hose line HL is installed. . The transmission means 40 includes a GPS antenna 41 that receives a signal from the GPS satellite 12, and a transmitter 42 that transmits the signal received by the GPS antenna 41 to the monitoring means 50 installed on the monitoring base side. The transmission means 40 is attached to the surface of the connection ring 11 while being accommodated in a drip-proof sealed container.

  The monitoring means 50 includes each receiver 51 that receives a signal from each transmitter 42, each GPS receiver 52 that measures each position based on the signal received by each receiver 51, and each GPS receiver 52. A computer 53 that analyzes the shape of the hose line HL based on the position data, and a display device 54 that displays the shape of the hose line obtained by the computer 53 are provided.

  In this way, the transmission means 40 for transmitting the signal received from the GPS satellite 12 at a predetermined interval to the hose line HL is installed on the monitoring base side, and each GPS receiver 52 for analyzing the signal is installed on the base side to install the hose A line shape may be obtained, whereby the transmission means 40 installed in the hose line HL can be miniaturized and the installation space can be reduced.

  The hose line shape monitoring system of FIG. 6 may incorporate the GPS receiving means 30 of FIG.

  In the present invention, the GPS receiving means 13 and the transmitting means 40 are preferably attached to the connecting ring 11 as described above, but may be attached to the marine hose 1 side, for example, the nipple 3A of the connecting portion 3.

  Moreover, you may make it install in the ship which manages the hose line HL instead of installing the monitoring base on land.

  Although the monitoring means 20 and 50 described above are both provided with the display devices 23 and 54, instead of this, when the hose line shape changes from a predetermined shape, for example, when the allowable bending radius is exceeded, An alarm means for issuing an alarm when a constant tension or more acts and the hose length changes may be provided, or both may be provided.

It is explanatory drawing which shows an example of the hose line which mounted | wore with the hose line shape monitoring system of this invention. It is a principal part expanded sectional view which shows an example of the marine hose used for the hose line of FIG. It is a principal part enlarged view of FIG. It is explanatory drawing of the hose line shape monitoring system of FIG. It is explanatory drawing which shows the other example of the hose line shape monitoring system of this invention. It is explanatory drawing which shows the further another example of the hose line shape monitoring system of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Marine hose 2 Hose main body 3 Connection part 11 Connection ring 12 GPS satellite 13 GPS receiving means 14 GPS antenna 15 GPS receiver 16 Transmitter 20 Monitoring means 21 Receiver 22 Calculator 23 Display device 30 Reference GPS receiving means 31 GPS antenna 32 GPS receiver 33 Transmitter 40 Transmitting means 41 GPS antenna 42 Transmitter 50 Monitoring means 51 Receiver 52 GPS receiver 53 Computer 54 Display device HL Hose line

Claims (11)

    GPS receivers that measure the position based on signals received from GPS satellites that are installed at predetermined intervals on a hose line that connects multiple marine hoses, and that are sent from each GPS receiver that is installed on the monitoring base side A hose line shape monitoring system comprising monitoring means for receiving the received position data and analyzing the shape of the hose line.   The GPS receiving means includes a GPS antenna for receiving a signal from a GPS satellite, a GPS receiving apparatus for measuring a position based on a signal received by the antenna, and position data measured by the GPS receiving apparatus to the monitoring means. A transmitter for transmitting, the monitoring means receiving a position data from the transmitter, a computer for analyzing the shape of the hose line based on the position data received by the receiver, The hose line shape monitoring system according to claim 1, further comprising: a display device that displays a hose line shape analyzed by a computer.   The reference GPS receiving means for measuring the position based on the signal received from the GPS satellite is installed on the monitoring base side, and the hose line GPS receiving means obtains the data obtained by the reference GPS receiving means. The hose line shape monitoring system according to claim 1 or 2, wherein the computer analyzes the shape of the hose line based on position data obtained by correcting the obtained data.   The hose line shape monitoring system according to any one of claims 1 to 3, wherein the GPS receiving means of the hose line is drip-proof treated.   The hose line shape monitoring system according to any one of claims 1 to 4, wherein a GPS receiving means of the hose line is attached to a connecting ring, and the marine hose is connected via the connecting ring.   Installed at predetermined intervals on a hose line formed by connecting a plurality of marine hoses, transmitting means for transmitting signals received from GPS satellites to the monitoring base side, and receiving from each transmitting means installed on the monitoring base side A hose line shape monitoring system comprising: a GPS receiver that measures a position based on a signal; and a monitoring unit that includes a computer that analyzes the shape of the hose line based on position data from the GPS receiver.   The hose line shape monitoring system according to claim 6, wherein the monitoring unit includes a display device that displays a hose line shape analyzed by the computer.   The hose line shape monitoring system according to claim 6 or 7, wherein the transmission means is drip-proof.   The hose line shape monitoring system according to claim 6, 7 or 8, wherein the transmitting means is attached to a connecting ring, and the marine hose is connected via the connecting ring.   A marine hose equipped with GPS receiving means capable of measuring a position based on a signal received from a GPS satellite and transmitting the position data to the monitoring base. A marine hose equipped with a transmission means capable of transmitting a signal received from a GPS satellite to the monitoring base.

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