Abstract: Described herein are systems and apparatus for transverse gradiometer (TVG) acquisition using a towed platform. A first wing surface that is pitch-adjustable based on rotation about a leading edge of the first wing surface. A second wing surface that is pitch-adjustable based on rotation about a leading edge of the second wing surface, and wherein a pitch of the second wing surface is adjustable independently from a pitch of the first wing surface. Unlocking insights from Geo-Data, the present invention further relates to improvements in sustainability and environmental developments: together we create a safe and livable world.

Abstract: A method and sensor system for monitoring in time a geometric property of a gasket (32, 34) that sealingly interconnects two structural members (20, 21) of a subterraneous or immersed tunnel (10). The system includes a sensor (42) for measuring position indications for surface portions (48) of the gasket relative to a reference (26, 27, 47) associated with one or both structural members, and a processor (44) that is coupled with the sensor to receive the position indications. The processor is configured to derive indications of displacement (?Y) for each of the gasket surface portions based on the measured indications of position, to compare the indications of displacement for each of the gasket surface portions with at least one threshold value (Ty), and to generate a warning message for an operator if at least one of the indications of displacement transgresses the at least one threshold value.

Abstract: An electric field gradient sensor is presented, having a sensor body having an outer surface; and a plurality of electrodes distributed over the outer surface, each electrode having an electrode surface facing outward from the surface. The plurality of electrodes are arranged forming a plurality of electrode pairs, each electrode pair formed by a first electrode and a second electrode located on opposite sides of the sensor body. This sensor enables three-dimensional measurements of the electric field gradient along structures located in an electrically conductive medium, such as subsea structures, for example for monitoring the cathodic protection of such structure.

Abstract: Disclosed herein is a towed sensing apparatus for underwater profiling. The apparatus includes a sensor array including one or more sound velocity sensors for determining vertical water column profile information. A sensor housing portion can include a receptacle for receiving the sensor array, the receptacle including one or more apertures for providing water flow to the sensor array during subsurface deployment of the apparatus. A coupling mechanism can be provided to removably couple the sensor array within the receptacle by coupling the sensor array to an inner surface of the receptacle. The weighted nose portion can be coupled to the sensor housing portion and can have a greater mass than a second end of the towed sensing apparatus opposite from the first end. One or more hydrodynamic surfaces can extend radially from the towed sensing apparatus and can be arranged to exert a respective force when the apparatus is deployed.

Abstract: Disclosed herein are systems and apparatuses for curved line surveying using a towed sensing apparatus with fiber optic gyroscopic heading determination. A method can include obtaining a plurality of surveying data inputs from one or more sensors of a towed sensing apparatus, the plurality of surveying data inputs obtained during a subsurface deployment of the towed sensing apparatus along a curved survey path and indicative of a seafloor measurement. A plurality of heading measurements indicative of an angular direction of the towed sensing apparatus can be obtained, wherein the plurality of heading measurements and the plurality of surveying data inputs are measured during the subsurface deployment. The plurality of surveying data inputs can be correlated with the plurality of heading measurements. A composite image of an area of seafloor along the curved survey path can be generated based on the plurality of surveying data inputs and the correlated heading measurements.

Abstract: Disclosed herein are systems and apparatuses for sonar acquisition using a towed platform (e.g., a towfish). A sonar acquisition towed platform apparatus can include one or more sidescan sonars coupled to a towed platform and a gyroscopic sensor array rigidly coupled to an outer surface of the towed platform. The gyroscopic sensor array can be external to the towed platform and to the one or more sidescan sonars. The gyroscopic sensor array can generate sensor information indicative of a heading of the towed platform and a roll of the towed platform. The sonar acquisition towed platform apparatus can further include a transceiver for transmitting survey information including the sensor information obtained using the gyroscopic sensor array and sidescan sonar information obtained using the one or more sidescan sonars, the sensor information corresponding to the sidescan sonar information.

Abstract: The present disclosure is directed to systems and techniques for processing frames of data. For example, a method can include obtaining a plurality of geospatial data inputs, each geospatial data input of the plurality of geospatial data inputs associated with a sample time and a surveyed area; generating a plurality of features corresponding to each geospatial data input of the plurality of geospatial data inputs; and generating, using a segmentation machine learning network, one or more segmentation masks for the plurality of geospatial data inputs.

Abstract: Disclosed herein is a vessel-mounted sensor acquisition apparatus including a coupler plate, an upper attachment portion, a sensor array portion, and a first winged pipe segment. The coupler plate includes a rotatable coupler and a rigid coupler. The upper attachment portion includes a first pipe attachment that is rotatably coupled to the rotatable coupler of the coupler plate and a second pipe attachment that is removably coupled to the rigid coupler of the coupler plate. The sensor array portion includes a plurality of remote sensing sensors. The first winged pipe segment, which includes a vibration-reducing wing, is coupled between the upper attachment portion and the sensor array portion.

Abstract: A camera monitors positions on an external object having a beacon (1(i), i=1, 2, . . . , I; 130; 430) attached to it. The apparatus has at least one image sensor (120; 321, 322; 420; 520), an imaging optical element (101) for projecting light on the image sensor (120), and a processing unit (9). The imaging optical element (101) may be non-refractive and receives a light beam (5(i); 131) transmitted from the beacon (1(i); 130; 430) and transfers the light beam (5(i); 131) to the image sensor (120; 321, 322; 420; 520). The image sensor (120; 321, 322; 420; 520) forms image data based on the received light beam (5(i); 131) and background light. The processing unit (9) processes the image data such that it filters image data components relating to the background light and renders image data components relating to the light beam.

Abstract: A pin point corer for collecting samples from a seabed of a sea, having a control unit to be positioned on a vessel or similar remote position, a top lift unit, which can be attached to a lifting and lowering unit of a vessel via an cable, such that it can be lifted and lowered relative to the seabed, a corer unit, releasable attached to the top lift unit by a fixation unit and arranged for being at least partly driven into layers of the seabed to collect the samples from there, e.g. when released from the top lift unit, wherein the top lift unit comprises a positioning unit bi-directionally communicating with the control unit for controlling the position of the corer unit. The invention also relates to a respective system and a method for collecting samples by use of such a pin point corer.

Abstract: A system is provided, including a remotely operated machine having: a coiled rod with a probe to be penetrated into subsurface by uncoiling the rod; a tracking unit determining a position of the machine; and adjustable support legs for stabilizing and levelling the machine; a remote workstation having a user interface for data input and output; a tracking control unit for tracking movement of the machine based on its position; a levelling control unit for controlling the support legs; and a deployment control unit for controlling uncoiling of the rod and penetration of the probe into the subsurface; the tracking control unit, levelling control unit and deployment control unit configured to communicate with the remote workstation allowing operation of these units to be monitored, initiated and/or controlled via the user interface; and the tracking control unit, levelling control unit, and deployment control unit configured to transmit a signal indicating successful execution of its operation.

Abstract: The present disclosure is directed to systems and techniques for providing immersive and interactive three-dimensional (3D) mapping data and visualizations thereof for emergency response incidents. In one example, the systems and techniques can obtain location information associated with an incident and obtain one or more portions of three-dimensional (3D) mapping data based on the location information associated with the incident. A 3D scene associated with the incident can be generated, wherein the 3D scene is generated based on the one or more portions of 3D mapping data. A first 3D view of the 3D scene can be generated, wherein the first 3D view includes one or more incident location indicators representing the location information of the incident relative to the 3D scene.

Abstract: A CPT probe (200) having a cone tip (252) can be inserted into one or more soil layers (110, 112, 114) by a hammer action. The CPT probe (200) has a casing (214) with an internal hammer blow mechanism (225) inside said casing (214) which applies a hammering force on said cone tip (252). The internal hammer blow mechanism is driven by a motor unit (118) which is located either inside the casing (214) or external to the casing (214).

Abstract: A communication unit (20) configured for wireless optical communication underwater, and including a communication transceiver (24), a housing (22), an adjustment mechanism (28), and a processor (40). The transceiver is accommodated in the housing, and includes a signal detector configured to receive an optical communication signal (50) approaching the unit within a main detection lobe centred on a receiver directivity axis (Ar), and/or includes a signal generator configured to emit an optical communication signal (52) via a main emission lobe centred on a transmitter directivity axis (At). The adjustment mechanism is configured to adjust orientation(s) of the receiver and/or transmitter directivity axes relative to the housing. The processor is configured to determine a directional coordinate (?i, ?i) for an approaching light signal (50, 54), and to control the adjustment mechanism to automatically adjust and align the orientation of the directivity axes with the determined directional coordinate.

Abstract: A method and apparatus for dissemination of a timescale signal (T2) from at least one server site to at least one client site is provided.

Abstract: A subsea vertical drilling machine is disclosed, having: a drill assembly formed by: a riser pipe having a first end, a second end, and a length extending between the first and second ends; and a drilling machine body, including a drilling head, coupled to the first end of the riser pipe; and a vertical feed system configured for advancing the drill assembly in a vertical direction. The riser pipe is provided with at least one rack extending along at least a part of the length of the riser pipe, and the vertical feed system comprises a motor coupled to a pinion, the pinion arranged for engaging with the rack for advancing the drill assembly.

Abstract: A system for monitoring survey reflectors arranged at a plurality of locations on an object, having: a camera, including: one or more light sources arranged to illuminate a field in space corresponding to at least 10% of a field of view of the camera, preferably the whole field of view; an image sensor receiving light beams from reflections of the beam by the survey reflectors and providing data; a body with an optical entry system, the image sensor located on a first side and the light source on a second side of the body; and a processing unit processing the data. The processing unit is configured to determine locations of the survey reflectors from the image sensor data and detect movement of the survey reflectors based on a comparison of the determined locations with previously determined locations.

Abstract: A method and system for locating a high-intensity target light source (26) from an elevated observation location (Po), for instance in an aircraft. The target light source is located at/near an earth surface portion (30) and amongst reference light sources (16, 24, 25) arranged along the surface portion. This target light source emits light (28) with a peak radiant intensity that exceeds the intensity of the reference light sources by at least one order of magnitude. The method includes: acquiring, with an image recording device located at the observation location, images of the light and light emitted the reference light sources; comparing the images and a digital ground map (50) that includes representations of the surface portion and of structures (20, 22) associated with the reference light sources, and estimating a location (Pt) of the target light source relative to the reference light sources, based on the comparison.

Abstract: A communication unit (20) configured for wireless optical communication underwater, and including a communication transceiver (24), a housing (22), an adjustment mechanism (28), and a processor (40). The transceiver is accommodated in the housing, and includes a signal detector configured to receive an optical communication signal (50) approaching the unit within a main detection lobe centred on a receiver directivity axis (Ar), and/or includes a signal generator configured to emit an optical communication signal (52) via a main emission lobe centred on a transmitter directivity axis (At). The adjustment mechanism is configured to adjust orientation(s) of the receiver and/or transmitter directivity axes relative to the housing. The processor is configured to determine a directional coordinate (?i, ?i) for an approaching light signal (50, 54), and to control the adjustment mechanism to automatically adjust and align the orientation of the directivity axes with the determined directional coordinate.

Abstract: A subsea vertical drilling machine is disclosed, having: a drill assembly formed by: a riser pipe having a first end, a second end, and a length extending between the first and second ends; and a drilling machine body, including a drilling head, coupled to the first end of the riser pipe; and a vertical feed system configured for advancing the drill assembly in a vertical direction. The riser pipe is provided with at least one rack extending along at least a part of the length of the riser pipe, and the vertical feed system comprises a motor coupled to a pinion, the pinion arranged for engaging with the rack for advancing the drill assembly.