Abstract:
A system and method for characterizing fluid flow. A plurality of craft is deployed on the surface of the fluid, each of the craft configured to operate in either a fluid-transiting state or a fluid-tracking state. The craft are further configured, when a spatial arrangement of the craft satisfies a first condition, to execute a regrouping maneuver. The execution of the regrouping maneuver includes a first craft of the plurality of craft transitioning from the fluid-tracking state to the fluid-transiting state; the first craft changing its position; and the first craft transitioning from the fluid-transiting state to the fluid-tracking state.
Abstract:
The invention relates to a free-floating device for the directional characterisation of waves, comprising a selection of the following elements: sensors that can measure the earth's acceleration, angular velocity and magnetic field along three orthogonal axes; a GNSS positioning system; an electronic module; a telecommunications module; energy collection and/or storage elements; and a sealed floating container for housing the aforementioned equipment, having an optimised shape so as to follow the slope of the surface of a body of water disturbed by waves. In addition, the information from the sensors and the GNSS positioning system is managed by the electronic module and sent by the telecommunications module to a remote base station. Since the device is not anchored, it can characterise the direction of the surface waves more precisely, with improved operability and in a more economically efficient manner than current systems.
Abstract:
Systems and methods for sea state prediction and autonomous navigation in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes a method of predicting a future sea state including generating a sequence of at least two 3D images of a sea surface using at least two image sensors, detecting peaks and troughs in the 3D images using a processor, identifying at least one wavefront in each 3D image based upon the detected peaks and troughs using the processor, characterizing at least one propagating wave based upon the propagation of wavefronts detected in the sequence of 3D images using the processor, and predicting a future sea state using at least one propagating wave characterizing the propagation of wavefronts in the sequence of 3D images using the processor. Another embodiment includes a method of autonomous vessel navigation based upon a predicted sea state and target location.
Abstract:
An embodiment provides a device for measuring a fluid parameter of fluid flow in a channel, including: a transmitter; at least one receiver; a processor operatively coupled to the at least one transmitter and the at least one receiver; a memory device that stores instructions executable by the processor to: transmit, using the transmitter, directed energy carrying a signal toward a surface of a fluid in a fluid channel, so as to produce one or more reflections from the fluid surface; detect, by the at least one receiver, one or more received signals associated with the one or more reflections so produced; determine, based upon a measurement beam comprising characteristics of the transmitted and received signals, one or more fluid parameters to be measured using a processor of the device; and associate, using a processor of the device, the one or more fluid parameters with a channel segment. Other embodiments are described and claimed.
Abstract:
The invention relates to a free-floating device for the directional characterisation of waves, comprising a selection of the following elements: sensors that can measure the earth's acceleration, angular velocity and magnetic field along three orthogonal axes; a GNSS positioning system; an electronic module; a telecommunications module; energy collection and/or storage elements; and a sealed floating container for housing the aforementioned equipment, having an optimised shape so as to follow the slope of the surface of a body of water disturbed by waves. In addition, the information from the sensors and the GNSS positioning system is managed by the electronic module and sent by the telecommunications module to a remote base station. Since the device is not anchored, it can characterise the direction of the surface waves more precisely, with improved operability and in a more economically efficient manner than current systems.
Abstract:
A sea-floor tethered float instrument containing an accelerometer for measuring wave induced water velocity, ocean currents, relative swell kinetics and the like.
Abstract:
Method of providing a validity check of data sets obtained from measurements in a measuring environment, said measuring environment incorporating a number of observation stations each comprising at least one measuring instrument and an instrument controlling device for the controlling of the at least one measuring instrument and where said measuring environment comprises a processing device for storing, manipulating and displaying a data set comprising a plurality of observations made by an observation station deployed at an observation site.
Abstract:
An on-board measuring device such as a fish detector and a navigation device in which tide or tidal current data are displayed. For example, an underwater detector according to this invention comprises a transmitting/receiving means (30) which transmits an ultrasonic detecting signal into water and receives the echo signal of the detecting signal, a signal processing means (34) which processes the output signal of the transmitting/receiving means and sends out a signal representing underwater situations a first memory (24) for storing the signal sent out from the signal processing means, a second memory (6a) which stores beforehand the data relative to the tide or tidal current every moon's age at every spot, position signal inputting means (4, 8, 10, 11, 14, 18a) for inputting the latitude and longitude signal representing a desired spot, time data inputting means (8, 12, 18b) for inputting time data, a data retrieval means (20) which retrieves the pertinent tide or tidal current data from the second memory according to the inputted latitude, longitude and time data, and a displaying device (26) which displays the tide or tidal current data retrieved, or displays the signals sent out from the first memory.
Abstract:
The platforms, systems, methods and computer readable media provided herein monitor a shore and near shore environment using a plurality of sensors, each sensor associated with a near shore water recreationist or near shore water recreationist equipment. The platforms, systems, methods and computer readable media provided herein include a server application configured to generate and transmit an environmental data report. The platforms, systems, methods and computer readable media provided herein include a device configured to receive the environmental data report.