39 results about "Research vessel" patented technology

The invention belongs to the marine observation field and particularly discloses a shallow sea submerged buoy and a utilization method thereof. The shallow sea submerged buoy comprises a submerged buoy main body, a mooring recycling device and a releasing fishing device; the submerged buoy main body is formed by an observation base, an observation device (a thermosalinograph and an acoustic Doppler current profile meter) and a backup battery cabin; the observation base comprises a trawl resistant outer casing, a hanging socket, a supporting frame, balancing weight, an acoustic Doppler current profile meter level fixing clamp and a sacrificial anode; the mooring recycling device comprises a gravity anchor, a tail mooring rope and a connecting chain; the arranging fishing device comprises a research vessel, a shipboard winch, a shipboard hoist, a steel rope, a release hook and a recycling jagged hook. In the shallow sea with the depth of water less than 100 m, the shallow sea submerged buoy has the advantages of efficiently achieving measure of elements such as sectional flow rate, water temperature of places near to the sea bottom and salinity, being high in cost performance, having a trawl, being good in data quality, long in operating time, stable in releasing and recycling, simple to operate and the like.

The invention discloses an original-space detector and a detection method for beach shallow sea sediment strength. The original-space detector for the beach shallow sea sediment strength comprises a control ship and a frame device, wherein the control ship is provided with an air charging device and a vacuum generator and the frame device is provided with an injection device and a hydraulic device. An air pressure chamber on the frame device is connected with the air charging device and the vacuum generator. The air pressure chamber is a cylindrical leather bag with cross section being circular and vertically arranged. A protection cylinder is further arranged outside the leather bag. Water discharge holes are formed in the surface of the protection cylinder. The water discharge holes are in an oval shape, a V shape or a U shape. The method comprises the steps that the frame device is pulled to a target point through a ship and sinks to the seabed through self weight, strength of sediment under the seabed is detected through a hydraulic injection manner, contacting probe strength testing parameters are obtained, test points stratums are divided according to strength values of various layers of soil, names are chosen for the stratums, and bearing force and modulus on beach shallow sea foundation sole are confirmed. According to the original-space detector and the detection method for the beach shallow sea sediment strength, the defect that a large-scale research vessel can not be driven to a beach shallow sea range to conduct original-space strength detection for the seabed sediment is overcome, geological exploration can be repeatedly conducted in different seabed areas, cost is greatly reduced, and efficiency is improved.

The invention relates to a placing and recycling method for a self-drilling cableless type seabed deformation long-time observation device. The method comprises the steps that (1) an observation device is assembled; (2) a research vessel reaches the placing position, and the observation device is placed in a body free falling manner; (3) the sharp point of a micro bit is in contact with the bottom, and a micro motor is started for drilling; (4) the micro motor is preset to work for 2-4 minutes and stops automatically, a deformation measurement cable fully perpendicularly enters sediment, a seabed base box body is clamped on the surface of the seabed, and field placing is completed; (5) the research vessel reaches the placing position, signals are sent by a deck unit of a water sound releaser, a water sound releaser hook lock of the observation device is opened, and a spring buckle of the water sound releaser is released; (6) after the spring buckle is released, a spring jacks a support plate upwards, at the same time, a waterproof connector is separated, at the moment, a recycling part and a reserving part of the observation device are separated; (7) the recycling part floats to the sea surface and is recycled. According to the placing and recycling method for the self-drilling cableless type seabed deformation long time observation device, the working efficiency is improved, the scientific research cost is reduced, and the operation difficulty of field observation work is reduced.

The invention provides a floating enteromorpha biomass monitoring method so that to solve the problem that the Enteromorpha biomass still cannot be obtained accurately. The method is characterized bycomprising the following steps that 1, observation influence factors in the measuring site are determined; 2, a rapid monitoring tool is assembled, and the angle of the tool is regulated well; 3, a research vessel runs on the selected research fracture surface at the constant speed, and area recording is conducted by using the rapid monitoring tool in the step 2; 4, the monitoring area is recordedunder three different situations; 5, the enteromorpha area is calculated under three different situations; and 6, the enteromorpha biomass in a certain area is calculated. The method achieves measurement of the biomass of floating enteromorpha by adopting the vessel to monitor the area and the special-purpose measuring tool, the enteromorpha biomass is obtained more accurately, data support is provided for follow-up pre-warning and fishing work of enteromorpha, and thus manpower and material resources can be accurately prepared for pre-warning and fishing of enteromorpha.

The invention relates to a stable platform system of a light and small ship, in particular to a platform system for an inshore scientific research vessel. The platform system comprises a platform, a support, a platform base inner ring, a platform base outer ring, a rolling body, a rolling body retainer, an elastic buffering device, a flat plate base, an inner ring limiting device, an outer ring limiting device, a fluid balance weight, a fluid balance weight injection port, a balance weight, an elastic limiting device and a locking device. The spherical rolling body is installed between the platform base inner ring and the platform base outer ring, the rolling body retainer makes the spherical rolling body keep an appropriate separation distance to prevent mutual collision of the spherical rolling body. The shake of the small ship is weakened by the motion of the rolling body, and shake amplitude depends on the rolling friction resistance of the system, and the platform system is suitable for scientific research workers to have a rest and installation of high-precision deck experiment apparatuses.

The invention relates to a hydraulic control valve, and in particular relates to a marine gearbox inching hydraulic control valve. The hydraulic control valve provided by the invention mainly solves the technical problem that the existing hydraulic control device, without an inching control function or functions of high-pressure control and low-pressure pressure regulation and control, cannot meet the requirements of marine gearboxes for vessels, scientific research vessels, life saving boats, special fishing catching work ship, leisure yachts and other high-end ship. The hydraulic control valve provided by the invention comprises a control valve, wherein the control valve is connected with an inching valve, and the control valve is composed of a low pressure regulating and controlling mechanism, a high pressure control mechanism and a direction control structure; the inching valve is composed of an inching flow control mechanism and an inching position control mechanism, a P1 main oil line and a P2 main oil line which are connected in series are arranged in the control valve; and the control valve is communicated with the inching flow control mechanism of the inching valve through the P1 main oil line, the inching flow control mechanism is communicated with the direction control structure through P1 main oil line, and the low pressure regulating and controlling mechanism is communicated with a high pressure control mechanism through the P2 main oil line.

The invention discloses a satellite transmission marine magnetic force detection device. In the detection device, seabed equipment is connected with sea surface equipment by virtue of an anchor system; the sea surface equipment comprises a sea surface satellite transceiving device and a sea surface data transmission device; the anchor system comprises an armour cable, an underwater floating body,a sea surface connecting piece and a seabed connecting piece; the seabed equipment comprises a seabed seismograph, a seabed data transmission device, a non-magnetic bottom anchor weight and an acoustic release transponder; and a seabed magnetometer and a total field magnetometer respectively acquire magnetic force signals at different depths in the sea and a magnetic force signal at a seabed in real time and send the magnetic force signals to a shore-based laboratory by virtue of the armour cable, the sea surface data transmission device and the sea surface satellite transceiving device sequentially, thus real-time detection on a seabed vibration signal is realized. The satellite transmission marine magnetic force detection device disclosed by the invention can improve open sea marine geomagnetic survey data accuracy of a research vessel.

The invention relates to a bridge pile foundation scouring monitoring method which comprises the following steps of (1) safely lowering an underwater wall-climbing robot along the surface of a bridgepier; (2) acquiring signals through a sensor and an ultrasonic probe, and enabling the underwater wall-climbing robot to arrive at a position which is 30cm above a water-sediment interface; (3) receiving a signal of an ultrasonic transmitter, pre-processing in a second central processing unit (CPU), storing the signal into a second storage module, and determining the absolute depth of the underwater wall-climbing robot far away from a bridge pile unit under the sea; (4) when being 30cm far away from the water-sediment interface, lowering a telescopic penetration sounding rod with the sensor, calculating the soil thickness when the telescopic penetration sounding rod can arrive at a seabed supporting layer, and monitoring a scouring situation of a scouring interface when the telescopic penetration sounding rod cannot arrive at the seabed supporting layer; and (5) after finishing monitoring, recovering the underwater wall-climbing robot, and reading sensor data in the first storage module through an offshore research vessel data processing system. The inventio further discloses a system implementing the bridge pile foundation scouring monitoring method.

The invention provides a seabed bottom type measurement apparatus bottoming process combined determination method and device. The method includes that an underwater magnetic trigger switch and an acoustic velocity measuring device are arranged on a bottom type measurement apparatus, whether the device is at the bottom is determined by the relative position change of the magnetic part and the switch element of the magnetic trigger switch; based on the big difference of acoustic velocity in the air and water, whether the device is in the air or water is determined by the acoustic velocity measuring device; and by means of the two outputs (bottoming and non-bottoming signals) of the magnetic trigger switch and the two outputs of the sound velocity measuring device (air velocity and water velocity), the four states, namely, the deck parking state, the deck hoisting state, the underwater hoisting state, and the seabed bottoming state, of the device from the research vessel deck to the seabed are distinguished. The method is simple in principle, high in operationality, and easy to realize, fully utilizes the technologies in the prior art, e.g. the magnetic trigger switch, a minisize CTD or a minisize SVP (for acoustic velocity measurement) etc., and greatly improves the reliability and prevents misoperation.

The invention discloses Bohai sea ice region ship track control based on artificial neural intelligence. The Bohai sea ice region ship track control comprises literature analysis and investigation andresearch. Researching a ship-ice interaction mechanism based on a fracture mechanics theory; simulating and calculating the navigation stress condition of the ship ice area by using a finite elementmethod; designing an artificial intelligence neural control method based on DSC and MLP; and verifying the effectiveness of the Bohai sea ice area ship track control method by using a Matlab simulation experiment. The method has the advantages that marine traffic accidents in ice areas of the Bohai sea area can be reduced, and ship navigation safety is guaranteed.

The invention discloses a deploying and retracting apparatus for side-scanning and shallow-profiling landform detection and a method of use thereof.The deploying and retracting apparatus comprises a vertical tube, a cross beam, a pulley set and a side-scanning and shallow-profiling landform detection tow.The pulley set is fixed to one end of the cross beam and used for lifting and lowering the landform detection tow; the vertical tube comprises a rotary inner tube and a fixed outer tube, and the rotary inner tube rotates by 360 degrees in the fixed outer tube, the rotary inner tube is rotated through a push rod to rotate the landform detection tow to the portside or starboard of a research vessel.The deploying and retracting apparatus has the advantages that the structure is simple, the practicality is high, and the problems in deploying and retracting side-scanning and shallow-profiling landform detection equipment by using small vessels in island and shallow water areas are solved; the use of the side-scanning and shallow-profiling landform detection vessel-side operation mode effectively prevents the influence from vessel stern flow noise and improves signal-to-noise ratio of landform detection data; the depth and angle of the landform detection tow in the water are flexibly adjustable so that research safety and data quality are improved.