39 results about "Ocean wave height" patented technology

The invention discloses a wave power generation device with a rope structure. The wave power generation device mainly comprises a machine frame assembly, a floating platform assembly, three evenly-distributed driven constraint branched chains, three rope branched chains and a hydraulic power generation system, wherein the three driven constraint branched chains are installed on the machine frame assembly and are of the same structure, and the three rope branched chains are of the same structure and are evenly distributed in the circumferential direction. Main movement of waves is converted into moving and swing of floaters, the floaters drive a rope to move, then, moving and swing are converted into rotation of a crank disc, and the wave power generation device can well adapt to wave movement, is not restricted by the wave height, and has the advantages that subjected impact force is small, the wave energy recycling rate is high, the structure is simple, the input-output ratio is low,protection performance is good, and manufacturability is good.

The invention provides an undulatory sea surface ghost reflection suppression method and device. The undulatory sea surface ghost reflection suppression method comprises that based on an undulatory sea surface reflection coefficient calculation formula, the angular frequency, the wave number, the ocean wave height and the seawater speed which correspond to the obtained seismic data in a frequency-wavenumber domain are calculated to obtain a reflection coefficient; a white noise coefficient is obtained by calculating the angular frequency corresponding to the seismic data in the frequency-wavenumber domain; a ghost reflection suppression operator, of the frequency-wavenumber domain, corresponding to preset towing cable scanning depth is obtained by calculating the reflection coefficient and the white noise coefficient; frequency-wavenumber domain suppression data is obtained by means of the suppression operator; then the frequency-wavenumber domain suppression data is converted into time-space domain suppression data; the time-space domain suppression data is divided by a preset time window interval; the sum of absolute values of frequency domain data corresponding to the towing cable scanning depth in the same time window is worked out; and the time-space domain suppression data corresponding to the minimum sum of the absolute values serves as seismic data of the corresponding time window after ghost reflection suppression. According to the invention, undulatory sea surface ghost reflection can be effectively suppressed.

The invention relates to a method for obtaining the light scattering coefficient of sea wave foam with high realistic feeling, comprising: obtaining sea wave parameters; establishing a sea wave motion model according to the sea wave parameters to obtain the wave height field distribution; superimposing sea waves according to the sea wave height field distribution The foam distribution model is used to obtain the mixed state distribution of the sea foam; according to the mixed state distribution of the sea foam, the vector radiation transfer equation is solved to obtain the light scattering coefficient of the sea foam. The present invention starts from the construction of the wave height field, considers the influence of different sea conditions, weather conditions, different foam sizes and mixing ratios on the propagation of light in the foam, establishes the dissolution model of the wave foam in the mixed state of bubbles and water droplets, and generates the wave foam under different mixing modes The physical model of the sea foam is the mixed state distribution of the sea foam, and then the vector radiation transfer equation is constructed to realize the real-time calculation of the light scattering coefficient of the sea foam.

A laser-acoustic underwater communication system with self-adaptive wave height. In the field of laser-acoustic underwater communication, in order to solve the problems in the existing technology that the wave height cannot be adaptively adjusted, the weather is bad, and the platform is disturbed. The problem of low sound conversion efficiency and poor underwater communication quality includes lasers, beam expanders, zoom optical systems, laser ranging systems, controllers, and motors. The beam emitted by the laser is expanded by the beam expander and enters the zoom Optical system, the light beam is focused under the water surface after passing through the zoom optical system, which is excited to generate sound waves for communication, and the laser ranging system is excited to measure the height of the sea waves in real time, and the real-time measured sea level height data is transmitted to the master control system for data processing and transmission The electric signal is sent to the motor, and the motor controls the zoom optical system to adjust accordingly to compensate for the sea level change caused by the waves, so as to maintain the best underwater laser focus position and realize real-time adjustment of the underwater communication system breakdown position.

The invention relates to an energy collecting device for generating power through ocean energy. The energy collecting device is characterized by comprising a wave focusing unit and a water storage pool; the wave focusing unit comprises a wave gathering plate, hinges, a driving rod, a motor, a gradient controller, a horizontal supporting frame, a sliding groove, a sliding block and a driven rod; the wave gathering plate is connected with the driving rod and the driven rod through the hinges and is located above the horizontal supporting frame, and the gradient of the wave gathering plate is controlled through the gradient controller; the driving rod is connected with the motor through a rotating shaft; and the wave gathering plate and the horizontal supporting frame form a slope way with the slope angle capable of automatically increasing and decreasing, a sliding groove is formed in one side of the horizontal supporting frame, the sliding block is connected with the driven rod through the hinge, and the sliding block slides back and forth between the left end and the right end of the sliding groove under the effect of the driven rod. Automatic adjustment can be carried out according to the on-site and real-time ocean wave height and wave length, the ocean wave energy is obtained to the maximum degree, the overall efficiency and the total output of power generation of a power generator are improved, and the energy collecting device is suitable for replacing an existing energy collecting device of an overtopping type wave power generating device.

The invention discloses a method for predicting the significant wave height of ocean waves based on multi-sine function decomposition neural network, including S1. Obtaining the time series L(t of ocean wave fluctuations j ), and the time series L(t j ) is divided into learning data time length and verification data time length; S2. Utilizes M sine functions to decompose and study the single-point time series extracted by learning data time length; S3. Finally, accumulate the results of the learned sine functions, and Comparing with the verification data to calculate the mean square error, judging that the prediction results meet the threshold set by MSE, and then predicting the effective wave height in the future time to realize the effective wave height prediction of the entire area; this method decomposes and learns the effective wave height time series through multiple sine functions, Predict the significant wave height of ocean waves; it has been verified that the significant wave height of ocean waves can be effectively predicted by using the method for predicting significant wave height of ocean waves in the present invention, which has a significant effect on the study of ocean wave fluctuations and ocean climate change laws.