JP2012211488A - Image information acquisition device for installing structure and structure installation guidance system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide: an image information acquisition device enabling firm recognition and confirmation of a relative position between a structure and a target even if the target is submerged when the structure being an installation object is installed onto the target such as a foundation pile; and a structure installation guidance system enabling firm and accurate installation of the structure onto the target.SOLUTION: An image information acquisition device 12 used for installing a structure is disposed at an installing part of the structure as an installation object and acquires image information on a target that is a target of installation, and includes: a camera unit 13 capable of picking up an image in the air, on the water or in the water; a support member 14 disposed on the structure and supporting the camera unit; and a floating unit 15 for floating the camera unit on the water. Further, the camera unit floating on the water by means of the floating unit enables the camera unit to pick up an image of the target even if the target is submerged.

Description

  The present invention relates to an image information acquisition apparatus capable of visually grasping a relative position between a structure to be installed and a target such as a foundation pile, and a structure installation guidance system using the apparatus.

  Conventionally, when constructing a floating structure, a light wave rangefinder is used from two directions (normal, normal normal) on the land, and the position of the installation object is surveyed. The guidance to the foundation pile was performed, and the object to be installed was installed on the foundation pile. In addition, a method of inserting a jacket leg, which is an object to be installed, into a foundation pile placed on the bottom of the water for the construction of a floating structure is known. During this insertion work, as in Non-Patent Document 1, in order to efficiently and accurately insert the jacket leg into the foundation pile, the jacket leg and the foundation pile are monitored by monitoring with a camera arranged in the jacket leg. The relative position is grasped, the jacket is guided to the foundation pile using GPS, and the jacket leg is inserted into the foundation pile while adjusting the position.

“Marine construction of jacket type pier for D runway construction work” (http://www.haneda-d.jp/pdf/tec05_3.pdf)

  However, it is possible to grasp the plane relative position of the leg and foundation pile with the camera in the leg when the foundation pile protrudes from the water surface, for example, when the foundation pile is submerged due to tidal difference Therefore, there is a problem that the construction period is limited in areas where the tidal range is large. In addition, it was impossible to grasp at night using the camera in the leg.

  In view of the problems of the prior art as described above, the present invention ensures that a structure and a target object are installed even when the target object is submerged when the structure to be installed is installed on a target object such as a foundation pile. It is an object of the present invention to provide an image information acquisition apparatus capable of grasping and confirming the relative position of the object and a structure installation guidance system capable of reliably and accurately installing the structure on a target object.

  An image information acquisition apparatus for installation of a structure for achieving the above object is provided for installation of a structure that is installed in an installation section of a structure to be installed and acquires image information of a target object to be installed. An image information acquisition device, a camera unit capable of acquiring an image in the air, water surface or water, a support unit installed on the structure and supporting the camera unit, and a floating body unit that floats the camera unit on the water surface , And the camera unit obtains an image of the target object even when the target object is in water because the camera unit floats on the water surface by the floating body unit.

  According to the image information acquisition device for installing the structure, the camera unit can acquire an image of the target object even when the target object is on the water surface or in water because the camera unit floats on the water surface by the floating body unit. Therefore, when the structure to be installed is installed on the target, the relative position between the structure and the target can be surely grasped and confirmed even when the target is submerged.

  In the image information acquisition apparatus, it is preferable that the camera unit includes a storage unit having a light-transmitting bottom surface, or an underwater camera capable of underwater shooting.

  Further, by providing an illumination unit in the vicinity of the camera unit, it is possible to cope with a case where it is difficult to grasp an image of an underwater target due to nighttime or the like.

  In addition, when the structure moves to the water surface side, the support unit supports the camera unit so that the camera unit is moved by the floating body unit and the relative position with respect to the water surface is kept constant. When moving closer to the water surface as the installation progresses, the camera unit follows it and keeps the relative position with respect to the water surface, so it is possible to continue acquiring the target image and the camera unit also captures the image of the structure side. Can be obtained.

  Further, when the target is a pile placed on the bottom of the ground, and the installation part of the structure is an opening to be inserted into the pile, the camera unit has a camera on the central axis of the opening. By being supported by the support unit so as to be positioned, the relative position between the target and the opening can be grasped from the position of the image of the target.

  The structure installation guidance system for achieving the above object includes an image information acquisition device for the structure installation, a communication unit for image information acquired by the image information acquisition device, and the image information sent by the communication unit. And a monitor device that displays the image information by the image information acquisition device, and displays an image of the target that is the target of the installation portion of the installation target structure on the monitor device.

  According to this structure installation guidance system, an image of the target object of the installation part of the structure to be installed can be displayed on the monitor device, so that the installation target structure can be installed while visually checking such an image. The move operation for can be performed. At this time, even if the target is underwater, the image of the target can be acquired, so even when the target is submerged, the structure to be installed can be accurately set to the target such as a foundation pile. Can be installed well.

  In the structure installation guidance system, it is preferable that an image of the installation section of the structure is also displayed on the monitor device as the installation of the structure to be installed progresses.

  In addition, a guidance device using a light wave range finder that acquires position information of the structure to be installed is further provided, and the structure is guided toward the target based on the position information. Can be guided toward the target object in a stage before it can be displayed on the monitor device.

  According to the image information acquisition apparatus of the present invention, when installing a structure to be installed on a target, even if the target is submerged, the relative position between the structure and the target is surely grasped and confirmed. can do.

  Moreover, according to the structure installation guidance system of the present invention, even when the target is submerged, the structure can be reliably and accurately installed on the target.

It is a figure showing roughly the whole structure installation guidance system by this embodiment. It is a figure which shows schematic structure of the guidance apparatus 11 by the automatic tracking type | formula light wave rangefinder of FIG. 1, Comprising: The mirror (a) for automatic tracking type | formula lightwave rangefinders installed on a receiving beam, and installed on the existing structure part An automatic tracking type light wave range finder (b) and a personal computer (c) installed in a crane operation room of a hoist ship are shown. The figure (a) which shows schematic structure of the image information acquisition apparatus installed on the receiving beam of FIG. 1, and the personal computer installed in the crane operation room of a hoist ship in order to display the image information from an image information acquisition apparatus It is a figure (b) which shows a monitor etc. It is a side view which shows the image information acquisition apparatus of FIG. 1, FIG. It is a top view of the image information acquisition apparatus of FIG. It is a bottom view of the image information acquisition apparatus of FIG. It is a figure which shows the relative positional relationship of the opening part of the structure (receiving beam) of installation object in this embodiment, and the foundation pile which is a target object, The position (a) which shifted | deviated, the installation position (b) which corresponded, and an opening part Shows the position (c) where the foundation pile is placed and the position (d) where the installation is completed. It is a figure which shows schematically the monitor image displayed on the monitor 44 of FIG.3 (b), and shows the monitor images (a)-(d) corresponding to the positional relationship of Fig.7 (a)-(d), respectively. It is a flowchart for demonstrating process S01-S16 of the whole installation operation of the receiving beam of FIG. 1 by the structure installation guidance system 10 of this embodiment.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a diagram schematically showing an entire structure installation guiding system according to the present embodiment.

  As shown in FIG. 1, a structure installation guidance system 10 uses a RC receiving beam B, which constitutes a jacket for constructing a floating structure, as a hoist for a large number of foundation piles P placed on the bottom of the water. It is configured so that it can be guided when installed on the foundation pile P by operating the crane CR of the ship SH, and the alignment of the receiving beam B with respect to the foundation pile P can be visually confirmed.

  The structure installation guidance system 10 includes a guidance device 11 using an automatic tracking type light wave range finder and an image information acquisition device 12 using a camera. In the crane operating room PE of the hoist ship SH in FIG. 1, the receiving beam B is moved to the target foundation pile P1 based on the positional information from the guidance device 11 by the automatic tracking type light wave rangefinder of the structure installation guidance system 10. And moving it toward the camera, and confirming the final alignment between the cylindrical opening B1 of the receiving beam B and the foundation pile P1 based on the image information from the image information acquisition device 12 by the camera. it can.

  FIG. 2 is a diagram showing a schematic configuration of the guidance device 11 by the automatic tracking type light wave range finder. The mirror (a) for automatic tracking type light wave range finder installed on the receiving beam is installed on the existing structure part. (B) and a personal computer (c) installed in a crane operating room of a hoist ship.

  The guidance device 11 using the automatic tracking type light wave range finder is configured as follows, and has two measurement channels CH1 and CH2 based on the automatic tracking type light wave range finder as shown in FIG. That is, the automatic tracking type optical distance measuring mirrors 21 and 31 of FIG. 2A are provided at predetermined positions of the receiving beam B to be installed, respectively, on the superstructure U of the existing structure portion of FIG. Automatic tracking type optical wave rangefinders 22 and 32, specific power-saving radio devices 23 and 33, and transmission antennas 24 and 34 are installed. In the crane operating room PE of the hoist ship SH, the receiving antennas 25 and 35 and specific power-saving Wireless receivers 26 and 36, a personal computer (PC) 29, and a monitor 30 are installed.

  The automatic tracking type optical wave rangefinders 22 and 32 collimate with the mirrors 21 and 31 of the receiving beam B as targets, transmit the measurement data wirelessly by the transmitters 23 and 33 and the transmission antennas 24 and 34, and receive antennas. 25, 35, and received by the receivers 26, 36, transmitted to and received by the measurement channels CH1, CH2, and then input to the personal computer 29. The personal computer 29 calculates the coordinate position information of the receiving beam B from the measurement data, performs analysis based on the coordinate position information of the receiving beam B, calculates the movement amount information of the receiving beam B to the target, and receives the receiving beam B. Current coordinate position information, current azimuth and inclination angle, and information on the amount of movement of the receiving beam B and target azimuth are displayed on the monitor 30. Thereby, in the crane operation room PE of the hoist ship SH, the current position of the receiving beam B, the necessary movement amount and the target direction can be visually confirmed on the monitor 30 and confirmed.

  The automatic tracking type optical wave rangefinders 22 and 32 are also called automatic tracking type total stations, and perform automatic collimation and automatic tracking using the automatic tracking type optical wave rangefinder mirrors 21 and 31 as targets. Can be used.

  FIG. 3A is a diagram showing a schematic configuration of an image information acquisition device installed on a receiving beam, and is installed in a crane operation room of a hoist ship in order to display image information from the image information acquisition device. It is a figure (b) which shows a personal computer, a monitor, etc.

  As shown in FIG. 3A, the image information acquisition device 12 includes a camera unit 13, communication devices 41 and 42, a personal computer 43, and a monitor 44 installed below the opening B <b> 1 of the receiving beam B to be installed. And comprising. The camera unit 13 acquires image information of the foundation pile of the target.

  As shown in FIGS. 3A and 3B, the image information acquisition device 12 wirelessly transmits the image information acquired by the camera unit 13 through the communication device 41, and is installed in the crane operation room of the hoist ship shown in FIG. The data is received by the communication device 42, sent to a personal computer (PC) 43, and displayed on the monitor 44. In addition, operation information can be transmitted from the personal computer 43 side through the communication devices 42 and 41 to operate the camera unit 13. The communication devices 41 and 42 can be composed of wireless LAN devices.

  Next, the image information acquisition apparatus 12 will be described with reference to FIGS. FIG. 4 is a side view showing the image information acquisition apparatus. 5 is a top view of the image information acquisition apparatus of FIG. 4, and FIG. 6 is a bottom view.

  As shown in FIGS. 4 to 6, the image information acquisition device 12 further includes a support unit 14 that is installed in a structure to be installed and supports the camera unit 13, and a floating unit 15 that floats the camera unit 13 on the water surface. . The camera unit 13 includes a camera 13b including a CCD image sensor, a lens, and the like, a light 13c, and a box-shaped storage unit 13a that stores the camera 13b and the light 13c and is sealed. It is united with the floating part 15 and floats on the water surface.

  The storage portion 13a has a bottom structure that is light-transmitting from an acrylic plate or the like, and is hermetically sealed as a whole. An image of a target such as an underwater foundation pile can be taken by the camera 13b housed in the storage portion 13a, and a target such as an underwater foundation pile can be illuminated by the light 13c at the time of image taking.

  The support portion 14 includes a fixing portion 14a that is installed in a bowl shape on a structure to be installed, and a column 14b that is supported by the fixing portion 14a and includes a cylindrical tube that supports the camera portion 13 at the lower end.

  As shown in FIGS. 4 and 5, the fixing portion 14 a includes a plurality of legs 14 c arranged at equal intervals in a plane and a flat plate 14 d placed on the legs 14 c. The column 14b made of a cylindrical tube gently penetrates through a through hole 14e (shown by a broken line in FIG. 4) provided in the center of the flat plate 14d. Around the predetermined position of the support column 14b, a disk-shaped drop prevention portion 14f having a diameter larger than that of the support column 14b is provided and fixed. The support column 14b is supported by the fall prevention unit 14f at the position shown in FIG. 4 and is held at that position. However, when the camera unit 13 is lifted by the floating body unit 15, the support column 14b moves upward.

  Further, the column 14b made of a cylindrical tube is provided with a rotation preventing portion 14g extending in the longitudinal direction so as to protrude from the outer peripheral surface of the column 14b, and the rotation preventing portion 14g is provided at the inner diameter portion of the circular through hole of the fall preventing portion 14f. By engaging the recessed portion 14h (FIG. 5), rotation of the column 14b relative to the flat plate 14d is prevented.

  As shown in FIGS. 4 and 6, the floating body 15 is formed in a floating ring shape filled with air, and is formed on a support disk 16 having substantially the same diameter as the floating body 15 at the top of the floating body 15 and the storage portion 13 a. Fixed and supported. The support disk 16 is attached to the support column 14b at the center thereof. The storage part 13a of the camera part 13 is located in the inner diameter space 15a of the floating body part 15, and the camera 13b is located at the center of the circular floating body part 15.

  In the camera unit 13, the storage unit 13a and the floating body unit 15 are integrated by the support disk 16, supported by the support column 14b, and inserted into the cylindrical opening B1 of the receiving beam B which is a structure to be installed. , It is located directly under the opening B1. At this time, the camera 13b of the camera unit 13 supported by the support column 14b is positioned on the central axis of the opening B1, and the image captured by the camera 13b is an image viewed from substantially the center of the opening B1. If the image of the target foundation pile P1 is located at the center of the screen, it can be determined that the center axis of the opening B1 and the center axis of the foundation pile P1 substantially coincide.

  Further, a power cable and a signal line 17 for the camera 13b and the light 13c extend into the cylindrical tube of the support column 14b, and the signal line 17 is connected to the communication device 41 as shown in FIG. The camera 13b can be remotely operated via the signal line 17 or the like.

  A monitor image acquired by the above-described image information acquisition device 12 will be described with reference to FIGS. FIG. 7 is a diagram showing a relative positional relationship between an opening of a structure to be installed (receiver beam) and a foundation pile as a target, a shifted position (a), a matching installation position (b), and an opening. Shows the position (c) where the foundation pile is placed and the position (d) where the installation is completed. FIG. 8 is a diagram schematically showing a monitor image displayed on the monitor 44 of FIG. 3 (b), and the monitor images (a) to (d) corresponding to the positional relationships of FIGS. 7 (a) to (d). Respectively.

  As shown in FIG. 7A, the support portions 14 and 14 and the camera portions 13 and 13 of the image information acquisition device 12 are installed in the openings B1 and B1 of the receiving beam B, respectively. That is, the fixed portion 14a of FIG. 4 is installed on the receiving beam B, the column 14b supported by the fixed portion 14a is inserted into the opening B1, and the camera unit 13 at the tip of the column 14b is placed on the water surface S by the floating body 15. float. In the figure, for convenience of explanation, the two openings B1 and B1 in which the support parts 14 and 14 and the camera parts 13 and 13 of the image information acquisition device 12 are respectively installed are adjacent to each other. For example, the support portions 14 and 14 and the camera portions 13 and 13 of the image information acquisition device 12 are preferably installed in the openings B1 and B1 at both ends of the portion B1, for example.

  Each image information photographed by the camera units 13 and 13 of the image information acquisition device 12 in FIG. 7A is transmitted and received through the communication devices 41 and 42 as shown in FIGS. 3A and 3B. Is input to the personal computer 43 installed in the crane operation room PE of the hoist ship SH, and an image is displayed on the monitor 44.

  That is, the camera units 13 and 13 in FIG. 7A photograph the pile heads of the foundation piles P1 and P1 in water, and the monitor 44 has two screens 44a and 44b as shown in FIG. 8A. Images PA and PB of the pile heads of each foundation pile are displayed. In FIG. 7 (a), the opening B1 of the receiving beam B is located at a position shifted from the foundation pile P1, so that the pile heads of the foundation piles are displayed on the screens 44a and 44b of the monitor 44 as shown in FIG. 8 (a). The images PA and PB are displayed off the screen.

  Next, in the crane operation room PE of FIG. 1, the position of the receiving beam B is finely adjusted while monitoring with the monitor 44 of FIGS. 3 (b) and 8 (a), and the receiving beam B is moved to the foundation pile P1. Induce. As a result, when the positions of the opening B1 and the foundation pile P1 coincide with each other as shown in FIG. 7B and the receiving beam B reaches the installation position, the screen of the monitor 44 as shown in FIG. 8B. Images PA and PB of the pile heads of the foundation piles are displayed almost at the centers of 44a and 44b. Thereby, in the crane operation room PE, it can confirm that the position of the receiving beam B corresponded with the position of the foundation pile P1, and reached the installation position.

  Next, by lowering the receiving beam B by the operation in the crane operation room PE of FIG. 1, the foundation pile P1 enters the opening B1 as shown in FIG. The water surface S rises into the opening B1 of the receiving beam B. At this time, the camera unit 13 follows and rises while floating on the water surface S due to the buoyancy by the floating body 15, thereby opening the opening B1. The inner peripheral surface of the opening B1 is photographed together with the pile head of the foundation pile P1. On the screens 44a and 44b of the monitor 44 at this time, an image B2 of the inner peripheral surface of the opening B1 is displayed together with the images PA and PB of the pile heads of the foundation piles P1, as shown in FIG.

  In the crane operation room PE, between the opening B1 and the foundation pile P1 while monitoring the images PA and PB of the pile heads of the foundation piles P1 and the image B2 of the inner peripheral surface of the opening B1 in FIG. The gap C (viewed from above) can be visually confirmed.

  In the crane operation room PE of FIG. 1, the gap C between the opening B1 and the foundation pile P1 is almost constant on the monitor 44 as shown in FIG. 8C, and the foundation pile P1 is almost centered in the opening B1. 7 (d), the receiving beam B is further lowered to bring the pile head of the foundation pile P1 into contact with the contact portion B3 on the inner peripheral surface of the opening B1. At this time, the receiving beam B further approaches the water surface S, the camera part 13 moves upward beyond the contact part B3, and the monitor 44 has a contact part with the images PA and PB of the pile heads of the foundation piles P1. An image of B3 and an image B2 of the inner peripheral surface of the opening B1 are displayed.

  As described above, the receiving beam B can be sunk to the foundation pile P1 and installed on the foundation pile P1. Thereafter, the support unit 14 and the camera unit 13 of the image information acquisition device 12 can be collected and used for the next installation of the receiving beam.

  According to the image information acquisition device 12 of the present embodiment, when the receiving beam B, which is a structure to be installed, is installed on the foundation pile P1 of the target object by the crane CR of the hoist ship SH, the foundation pile P1 is submerged in water. Since the camera unit 13 has a waterproof structure, the foundation pile P1 can be displayed on the monitor 44, and the opening B1 of the receiving beam B can be displayed on the monitor 44 as the installation of the receiving beam B progresses. The both positions of the opening B1 and the foundation pile P1 can be visually confirmed and confirmed in real time. For this reason, the final alignment operation of the opening B1 with respect to the foundation pile P1 can be reliably performed with high accuracy in the crane operation chamber PE of the hoist ship SH of FIG.

  Next, steps S01 to S16 of the overall installation operation of the receiving beam in FIG. 1 by the structure installation guiding system 10 of the present embodiment will be described with reference to the flowchart in FIG.

  The hoisting vessel SH shown in FIG. 1 prepares to lift the receiving beam B to be installed (S01). That is, as shown in FIGS. 1 and 2 (a) to 2 (c), the automatic tracking type optical wave rangefinder mirrors 21 and 31 that are targets for collimation are attached to predetermined positions of the receiving beam B, and the existing structural portion The guidance device 11 by the automatic tracking type light wave range finder is installed, for example, by setting the automatic tracking type light wave range finder 22, 32 on the superstructure U, and various settings are made (S 02). On the other hand, the image information acquisition apparatus 12 is installed in the opening B1 of the receiving beam B as shown in FIG. 7A, and the operation of the monitor 44 is confirmed (S03). It is confirmed whether each operation | movement of the guidance apparatus 11 by the automatic tracking type | formula light wave rangefinder and the image information acquisition apparatus 12 is favorable (S04).

  Next, the structure installation guidance system 10 is activated (S05), and the guidance device 11 and the image information acquisition device 12 using the above-described automatic tracking type light wave range finder are operated, and whether or not each operation is satisfactory. Is confirmed (S06).

  Next, if each operation | movement of each apparatus 11 and 12 is favorable, the receiving beam B will be suspended by the crane CR of the hoist ship SH of FIG. 1 (S07), and the installation movement of the receiving beam B by the hoist ship SH will be started ( S08). Then, the automatic tracking type light wave rangefinders 22 and 32 collimate the mirrors 21 and 31 as targets (S09), and the automatic tracking of the receiving beam B suspended by the crane CR is started (S10).

  Based on the coordinate position information of the receiving beam B obtained by the automatic tracking type optical wave rangefinders 22 and 32, the moving amount information (including the target direction) of the receiving beam B to the target is displayed on the monitor 30. The hoist ship SH is operated in the crane operation room PE while viewing the display. In this way, the guide beam 11 suspended by the crane CR of the hoist ship SH is guided to the target foundation pile P1 by the guidance device 11 using the automatic tracking type light wave rangefinder (S11).

  As described above, the guidance is performed based on the coordinate position information obtained by the automatic tracking type optical wave range finders 22 and 32 collimating with the mirrors 21 and 31 of the receiving beam B as targets and capturing them. The capturing state is continued until reaches the target coordinate position (S12).

  When the receiving beam B reaches the target coordinate position, it is determined that the guidance using the guidance device 11 by the automatic tracking type optical wave rangefinder is finished (S13). When this guidance is finished, in the crane operation room PE, Monitoring by the image information acquisition device 12 is started (S14). That is, the images PA and PB of the pile heads of the foundation piles P1 and P1 acquired by the camera unit 13 are displayed on the monitor 44 of the image information acquisition device 12 as shown in FIG. 8A, and then in the crane operation room PE. As shown in FIG. 8B, the installation position of the opening B1 of the receiving beam B is finely adjusted until the images PA and PB become the center position of the screen (S15).

  If it confirms that the installation position of the opening part B1 of the receiving beam B with respect to the foundation pile P1 is the center of a screen like FIG.7 (b), FIG.7 (c) (d), FIG.8 (c) (d) In this way, the receiving beam B is installed on the foundation pile P1 (S16).

  As described above, according to the structure installation guidance system 10 of the present embodiment, when the receiving beam B of the structure to be installed is moved by the crane CR of the hoist ship SH, the guidance device using the automatic tracking type light wave rangefinder 11, the guide beam B was roughly guided to the foundation pile P1, and then fine adjustment for final alignment of the opening B1 of the receiver beam B with respect to the foundation pile P1 was acquired by the image information acquisition device 12. This can be done while viewing and confirming the image in real time on the monitor 44. For this reason, the installation construction to the foundation pile P1 of the receiving beam B can be performed accurately and efficiently.

  Moreover, even when the foundation pile P1 that is the target is submerged in the water, the image of the underwater foundation pile P1 can be acquired by the camera unit 13 of the image information acquisition device 12, so that the foundation pile P1 is submerged. The receiving beam B, which is the object of installation, can be reliably and accurately installed on the foundation pile P1. Therefore, for example, even when a target such as a foundation pile is submerged due to a tidal difference, installation work can be performed, and the construction period is not limited even in areas with a large tidal difference. Can be done efficiently.

  Conventionally, since the positional relationship between the structure to be installed and the foundation pile of the target object is not clear from the crane operator room of the hoist ship, the survey using the optical wave range finder is performed, and the survey result is communicated with the radio. Since installation was performed with the help of guidance, it was difficult to make fine adjustments to the installation, which took time, and due to contact between the structure to be installed and the target due to errors in surveying or transmission in human guidance. While there was a problem such as troublesome confirmation work in order to avoid damage, according to the structure installation guidance system 10 of this embodiment, human call communication is unnecessary, while visually confirming while confirming Since the installation operation can be performed, the structure to be installed can be installed on the foundation pile efficiently, safely and reliably.

  In addition, if only the guidance device 11 using the automatic tracking type optical wave rangefinder is used, confirmation of the final alignment of the opening B1 of the receiving beam B with respect to the foundation pile P1 is troublesome, and visual confirmation with an actual image cannot be performed. On the other hand, according to the structure installation guidance system 10 of the present embodiment, visual confirmation with an actual image of the foundation pile is possible, and the confirmation work is simple and can be performed accurately and efficiently.

  Moreover, according to the image information acquisition apparatus 12 of this embodiment, since the camera unit 13 is configured so that the bottom surface of the storage unit 13a is light transmissive, the foundation pile of the target object appears above the water surface and is in the air. Even in some cases, an image of the pile head of the foundation pile can be obtained. Thus, the image information acquisition device 12 is amphibious. Moreover, since the target can be illuminated with the light 13c, it is possible to cope with night work.

  As described above, the modes for carrying out the present invention have been described. However, the present invention is not limited to these, and various modifications can be made within the scope of the technical idea of the present invention. For example, in this embodiment, the submerged foundation pile is the target, but the present invention is not limited to this, and is also applicable to, for example, installing another structure on the underwater structure as the target. it can.

  Further, an underwater camera that can be used underwater may be used as the camera 13b of the camera unit 13, and in this case, the storage unit 13a can be omitted.

  According to the image information acquisition device of the present invention, when the structure to be installed is installed on a target such as a foundation pile, the relative position between the structure and the target is ensured even when the target is submerged. According to the structure installation guidance system of the present invention, even when the target is submerged, the structure can be reliably and accurately installed on the target. Even if the target is submerged due to, etc., the installation work of the structure can be performed, and the installation period is not limited even in an area with a large tidal difference, and the installation work can be performed efficiently .

10 Structure installation guidance system
11 Guidance device using automatic tracking type optical wave rangefinder
12 Image information acquisition device
13 Camera section
13a storage section
13b camera
13c Light (illumination part)
14 Supporting part
14a fixed part
14b Prop
15 Floating body
21, 31 Auto-tracking optical distance measuring mirrors, mirrors
22, 32 Automatic tracking type optical wave rangefinder
29 PC
30 monitors
43 PC
44 monitors
B receiving beam
B1 opening
B2 Image of the inner peripheral surface of the opening B1
P, P1 foundation pile
PA, PB Foundation pile image
SH Hoist ship
CR crane
PE crane operation room
S water surface

Claims (8)

An image information acquisition device for installation of a structure that is installed in an installation unit of a structure to be installed and acquires image information of a target that is a target of installation,
A camera unit capable of acquiring an image in the air, water surface or underwater; a support unit installed on the structure to support the camera unit; and a floating body unit that floats the camera unit to the water surface.
An image information acquisition device for installation of a structure, wherein the camera unit acquires an image of the target even when the target is underwater by the camera unit floating on the water surface by the floating unit. .   2. The image information acquisition device for installing a structure according to claim 1, wherein the camera unit includes a storage unit having a light-transmitting bottom surface or an underwater camera capable of underwater photography.   The image information acquisition device for installing a structure according to claim 1, wherein an illumination unit is provided in the vicinity of the camera unit.   The said support part supports the said camera part so that the said camera part moves by the said floating body part, and keeps a relative position with respect to a water surface constant when the said structure moves to the water surface side. The image information acquisition apparatus for structure installation of 1 item | term.   In the case where the target is a pile placed on the underwater ground, and the installation part of the structure is an opening to be inserted into the pile, the camera is located on the central axis of the opening. The image information acquisition device for installing a structure according to any one of claims 1 to 4, wherein the image information acquisition device is supported by the support portion. An image information acquisition device for installing a structure according to any one of claims 1 to 5,
Means for communicating image information acquired by the image information acquisition device;
A monitor device that monitors and displays image information from the image information acquisition device sent by the communication means,
A structure installation guidance system, characterized in that an image of a target that is a target of an installation part of a structure to be installed is displayed on the monitor device.   The structure installation guidance system according to claim 6, wherein an image of an installation part of the structure is also displayed on the monitor device as the installation of the installation target structure progresses.   7. The apparatus according to claim 6, further comprising a guidance device using a light wave range finder that acquires position information of the installation target structure, wherein the structure is guided toward the target based on the position information. 7. The structure installation guidance system according to 7.

Images