30results about How to "Extend underwater working time" patented technology

The invention relates to a deep sea equipment buoyancy regulating system and a working method thereof, and belongs to the field of marine exploration equipment. The system comprises a buoyancy oil bag, an oil outlet normally open type electromagnetic reversing valve, an overflow valve, a hydraulic motor, a throttling valve, an oil outlet normally closed type electromagnetic reversing valve, an oilstorage oil bag, a controller, an oil inlet normally open type electromagnetic reversing valve, a hydraulic pump, a pressure reducing valve, an oil inlet normally closed type electromagnetic reversing valve, a one-way valve, a pressure transmitter and a flow meter, wherein the controller is connected with the flow meter, the pressure transmitter, the oil outlet normally open type electromagneticreversing valve, the overflow valve, the throttling valve, the oil outlet normally closed type electromagnetic reversing valve, the oil inlet normally closed type electromagnetic reversing valve, themotor and the oil inlet normally open type electromagnetic reversing valve through signal lines. According to the system, electric energy can be emitted by utilizing the pressure of seawater, the working state of a reversing valve of a hydraulic system is controlled, the energy consumption in the working process of the deep sea equipment buoyancy regulating system is reduced, and the working timeof deep sea equipment is prolonged.

The invention discloses a multistage separable-type unmanned underwater vehicle. The multistage separable-type unmanned underwater vehicle is characterized in that the multistage separable-type unmanned underwater vehicle comprises a vehicle shell; the vehicle head and the vehicle tail are arranged at the two ends of the vehicle shell correspondingly, and a butt-joint locking mechanism and a flexible butt-joint mechanism are arranged at the vehicle head and the vehicle tail correspondingly; the flexible butt-joint mechanism is used for being in butt joint with the next-stage vehicle head, andthe next-stage vehicle head is locked through the butt-joint locking mechanism; and a non-shaft counter-rotating dual-oar propeller is configured at the tail of the vehicle shell. The multistage separable-type unmanned underwater vehicle has the advantages of being small in noise, small in size, high in flexibility and capable of being freely separated and combined according to instructions to adapt to various underwater tasks.

The invention discloses a buoyancy regulating device and a control method for an AUV, which mainly consists of a bow pressure-resistant oil tank (8), a storage battery (2), a depth gauge (3), a controller (4), a radio station (5), a Beidou It consists of a satellite positioning system (6), an inertial navigation system (7), a stern pressure-resistant fuel tank (1), an oil bag (9) and a combined antenna (10). The present invention realizes rapid surfacing and submerging of the AUV by effectively adjusting the volume of the oil bag of the AUV and the attitude of the AUV when surfacing and diving under the condition of known water depth and underwater environment. The advantage of the unpowered vertical snorkeling structure designed by the present invention is that the upstream area of ​​the vertical surface is reduced when floating and diving, thereby reducing the vertical resistance. Under the condition of a certain buoyancy, it can float faster Dive and reduce energy consumption, and finally achieve the purpose of extending the working time of AUV underwater.

The invention is applicable to the technical field of submarine pipeline maintenance and transformation, and discloses a construction method for underwater installation of submarine pipelines with underwater pressure opening operation, which includes a mud removal step, a cement weight layer and anti-corrosion layer removal step, a grinding step, Polishing step, protective frame group skid underwater installation step, drilling machine assembly installation step, testing step, drilling step and dismantling step, wherein the desilting step includes desilting and forming under the pre-installed mechanical tee part of the submarine pipeline It is a foundation pit that provides operating space for divers to work in the air next to the submarine pipeline. The present invention can effectively reduce the occurrence of mud lifting caused by divers touching the bottom during operation activities, thereby improving the visibility of seawater at the construction site, and effectively reducing the impact of tidal currents on diving operations, which is beneficial to increasing divers' underwater work Finally, good construction conditions were created for underwater pressure drilling of submarine pipelines under the sea conditions with muddy water and tidal currents.

Provided is a hydraulic underwater vehicle vertical shaft ocean current power generating device, wherein two vertical shaft ocean current power generating devices are respectively mounted on the shell of the vehicle, and the mounting directions of the two vertical shaft ocean current power generating devices are opposite. Three vanes are respectively mounted on the top end of each telescopic mechanism in the vertical shaft ocean current power generating devices; the vanes rotate around a central shaft under the impact of the incoming flow; the lift force and resistance suffered by the vanes are different in different azimuth angles; and tangential force which drives a spindle to rotate is generated for enabling the vanes, the telescopic mechanisms and power generating device brackets to rotate around the vertical axis of the underwater vehicle, so as to drive a permanent magnetic rotor to rotate and cut a winding stator in order to generate an induced electromotive force, thereby changing the kinetic energy of the ocean current into electric energy which is to be used by the underwater vehicle. In the hydraulic underwater vehicle vertical shaft ocean current power generating device, the power generated by acquiring the ocean current energy is in direct proportion to the elongation and turning radius of the vanes; the problem of energy resource supply for underwater vehicle is solved; the working time of the underwater vehicle is extended; and the cost is saved.

The invention relates to the technical field of the field of surveying, and discloses a compass bird control method and a control device. The method includes: a main control single-chip microcomputer enters a first deep sleep state when not processing work; The first deep sleep state is switched to the first working state; the peak detection circuit detects whether there is a communication carrier signal; if the peak detection circuit does not detect the communication carrier signal, the data demodulation unit does not start; if the peak detection circuit detects the communication carrier signal , the data demodulation unit is activated to demodulate the communication carrier signal, and the communication demodulation module sends the demodulated signal obtained by demodulation to the main control single-chip microcomputer. Through the above method, the power consumption control method of the main control single-chip microcomputer and the communication demodulation module in the embodiment of the present invention can greatly reduce the power consumption of the compass bird, and correspondingly reduce the frequency of replacing the battery of the compass bird, so as to prolong the underwater work of the compass bird time, and improve the efficiency of compass bird work.

The invention discloses a gear transmission based underwater vehicle vertical shaft current power generation device. Two vertical shaft current power generation devices are respectively installed on a vehicle casing; installation directions of the two vertical shaft current generation devices are opposite; an internal gear is fixed on the external end surface of an impeller casing end plate; external gears are fixed on shafts of the electric generators; the electric generators are symmetrically installed on the end surface at the middle section of the vehicle; three blades are respectively installed at top ends of extensible mechanisms; the blades rotate surrounding a center shaft under impact of incoming flows and generate tangential force which drive a rotary shaft to rotate and accordingly the blades, the extensible mechanisms and generation device supports rotate surrounding underwater vehicle longitudinal axes, the internal gear which is connected with an impeller casing is driven to rotate, then the external gears and the electric generators are driven to rotate, and kinetic energy of currents is converted to be electric energy for the underwater vehicle. The gear transmission based underwater vehicle vertical shaft current power generation device solves the energy supply problem of the underwater vehicle, prolongs the working time of the underwater vehicle and saves costs.

The invention provides a single fin arrayed sonar equipment, comprising a hydrophone array, an array support and a flow guiding hood. The array support is fixed on the back or abdominal region of a shell of a submarine unmanned navigator. Each array element of the hydrophone array is installed on the array support and is axially arrayed along the back or abdominal region of the shell of the submarine unmanned navigator. The flow guiding hood is connected with the shell of the submarine unmanned navigator. The hydrophone array and the array support are located in a cavity formed between the flow guiding hood and the submarine unmanned navigator. The invention occupies less space, is beneficial to release the loading capability at two sides of a carrying platform and has small influence on the fluid property, the mobility and the speed of the carrying platform.

An adaptive multi-legged underwater robot is developed for offshore oil, mainly to solve the problem that most underwater robots currently have limited space for underwater operations. It is characterized in that: the device is composed of ROV body and multi-legged mechanism; the multi-legged mechanism has 6 legs, each leg has 5 degrees of freedom, there are 2 joints between the base joint and the body, and the joint between the thigh and the base joint 1, 1 at the connection between the calf and the thigh, and 1 at the connection between the foot and the calf; the sole of the foot is a suction cup structure, and the suction cup can be rotated 90 degrees for wheel rolling, and it can be used for different working conditions through the conversion of the wheel and foot. The device can rely on the propeller to suspend. It can rely on multiple legs to walk on the seabed when the road is uneven or encounter complicated pipelines. When the road is flat, it can rely on wheels to roll on the seabed. When detecting the jacket, it can rely on the suction cup to absorb pipe strings of different sizes Therefore, the stability of work and the adaptability to the environment are improved, and the motion performance and work efficiency of the underwater robot are improved.

Provided is direct driving vertical axis current power generation devices for an underwater vehicle. Two vertical axis current power generation devices are arranged on an underwater vehicle shell, and the installation directions of the two vertical axis current power generation devices are opposite. Generators are fixedly arranged in central shafts through winding stators. Threes blades are arranged at the top end of a telescopic mechanism in each vertical axis current power generation device, and the blades rotate around the central shafts under the impact of coming flows and generate tangential force driving rotating shafts to rotate, so that the blades, the telescopic mechanisms and power generation device supports rotate around the longitudinal axis of the underwater vehicle to drive inner gears connected the impeller shells to rotate and further drive outer gears and the power generators to rotate, and kinetic energy of ocean current is converted into electric energy used by the underwater vehicle. By means of the direct driving vertical axis current power generation devices for the underwater vehicle, energy supply of the underwater vehicle is achieved, the working time of the underwater vehicle is prolonged, and the cost is saved.

The invention relates to dual-fin array sonar equipment, which comprises a hydrophone array, an array bracket and a guide hood. The dual-fin array sonar equipment is characterized in that: the array bracket is fixed on the back or belly of the shell of an underwater unmanned vehicle; all array elements of the hydrophone array are fixedly arranged on the array bracket; the hydrophone array comprises two parallel single-line arrays; the two parallel single-line arrays have the array elements which are arranged in a mode of mirror symmetry along the axial line of the back or belly of the shell of the underwater unmanned vehicle; the guide hood is connected with underwater unmanned vehicle shell; and the hydrophone array and the array bracket are positioned in a cavity formed between the guide hood and the underwater unmanned vehicle shell. Through a dual-dorsal fin array, a fish bone like bracket and a conformal guide design, the dual-fin array sonar equipment improves the installation suitability of a passive detection sonar on an underwater unmanned vehicle and overcomes the problem of blurry left and right boards of the single-line arrays so as to enable the underwater unmanned vehicle to judge the left and right boards of a target without driving of an engine.

The invention relates to the field of underwater operating robots, and provides an underwater autonomous operating robot which is suitable for acoustic and optical detection of various underwater operating surfaces, and an operating method of the underwater autonomous operating robot. The underwater autonomous operating robot comprises an energy power module, a mechanical structure design module,an appearance design module, a master control module, a power propelling module and a functional module, wherein the master control module comprises a strong-current electronic control cabinet and a weak-current electronic control cabin; the power propelling module comprises at least two side thrusters, at least two vertical thrusters and at least one longitudinal main thruster; and the functionalmodule comprises a doppler velocity sonar, an imaging sonar, an optical camera integrated with an LED lamp, an optical communication MODEM, a depth and height meter, a front-end cloud deck and a rear-end cloud deck. The underwater autonomous operating robot provided by the embodiment of the invention is wider in detecting range, is more flexible in detecting way, and can realize autonomous operation.

The invention discloses a deep sea oil-charging motor capable of automatically removing water, and the motor comprises a motor body and a water removing system connected with the motor body. A side, far from an output shaft, of a rotor of the motor body is provided with an axial hole and a radial hole, so as to generate pressure difference in the axial and radial directions when the rotor rotates. The water removing system comprises an oil incoming pipe, an oil outgoing pipe, and a water removing unit, so as to enable oil liquid to circulate in the water removing system when the motor operates, thereby removing the water in the oil liquid. The motor provided by the invention can remove seawater in the oil liquid, increases the underwater working time, and is simple and reliable in structure.