40results about How to "Strong and reliable" patented technology

The invention relates to a prediction method of transformer winding hot-spot temperature based on a neural network. After the neural network is optimized through the adoption of a genetic algorithm, the transformer winding hot-spot temperature value is obtained through the computation; the method comprises the following steps: (1) constructing the neural network; (2) normalizing input data and output data of the neural network; (3) optimizing a weight value and a threshold value of the neural network through the genetic algorithm; (4) training the neural network optimized through the genetic algorithm; (5) obtaining the output data through the utilization of real-time measured input data and trained neural network, and computing the hot-spot temperature value through computation. Compared with the prior art, the method disclosed by the invention has the advantage of being high in measurement precision.

The invention discloses a magnetometer real-time correction device and method. The method comprises the following steps: firstly analyzing magnetometer error interference source features, then analyzing geomagnetic field distribution features and magnetometer measurement principles, subsequently designing the real-time correction device and simultaneously providing the corresponding correction method and process and finally realizing real-time correction and compensation on a course angle of a navigation system in a system level. According to the magnetometer real-time correction device and method, under the situation that the navigation system continuously works, the real-time automatic correction can be realized; meanwhile, the defects of conventional correction and compensation methods (such as an ellipsoid fitting method and the like) are avoided, and the magnetometer error correction can be autonomously, independently and completely realized. The magnetometer real-time correction device and method have the advantages that the course angle of the navigation system is corrected in real time, the error is more completely considered, the correction device is simple, the anti-interference performance is strong, the cost is low, the accuracy is high, and the processing of the calculation process is concise.

The invention discloses a magnetometer correcting method with an optimized and modified BP neural network based on a genetic algorithm. An error model of a magnetometer is converted into the three-layer modified BP neural network (namely the parameters of the error model of the magnetometer serve as weights of the BP neural network for optimized estimation), then the weights of the modified BP neural network are optimized in real time through the genetic algorithm, and therefore correction and compensation of the magnetometer are achieved; the structural principle of the modified BP neural network is shown in the picture 2. The correction method can effectively improve the accuracy of the magnetometer, further achieves high-accuracy positioning and navigation, lowers the processing complexity of a computer, obtains a good effect, has the advantages of being high in practicability, real-time performance and reliability, low in cost, high in accuracy, simple in calculation process, high in stability and the like, and can effectively improve the accuracy of the course angle of a navigation system.

The invention discloses a method for directly correcting and compensating a course angle of a navigation system and belongs to the technical field of location of navigation systems. The method for directly correcting and compensating the course angle of the navigation system comprises the following steps: firstly expanding an error model of a magnetometer according to the basic principle of circulating the course angle by virtue of the magnetometer; secondarily obtaining a parameter estimation model according to distribution characteristics of an earth magnetic field; finally estimating parameters of the expanded error model of the magnetometer by using a two-step total least square method so as to directly correct the course angle of the navigation system at a system level. The method can be used for correcting and compensating the error of a course angle of an inertial integrated navigation and location system which comprises an inertia measurement unit (IMU) and the magnetometer (or an electronic compass). The method is capable of directly correcting the course angle of the navigation system, strong in robustness, strong in reliability, low in cost, high in accuracy, simple in calculation process, and capable of achieving high-accuracy location and navigation and achieving good effects.

The spear fishing gun with a reliable and effective retractable mechanism is provided. The spear gun consists of the gun shaft, firing device, handle (including grip) and gripped trigger, retractable spear mechanism, and the stopper of string to prevent the spear, from ramming into the retractable string device during retraction. As soon as the spear is shot and the diver sees that he misses, he presses on the spring trigger retracting string mechanism and the spear comes back to the gun. If the spear pierces the fish, the diver can now press the retractable string device to either release the string or retracts it to collect the fish. The retractable string mechanism is equipped with a large spool which allows the diver to shoot at long along with short distances. The spool does not allow the string to unwind completely and waste time to rewind. This is regulated by a controlling button. There is also a screw which adjusts spring power and regulates the speed and looseness of the string during retraction while the stopper prevents the spear from ramming into the retractable string device during retraction. The stopper is a plastic, metal, or glass ball, or it may have other shape. Diameter or section of the stopper is larger than that of the string guide of the retractable mechanism. The same screw which is used for regulating spring power also functions as the on and off button for the retractable string mechanism. The invention is suitable for both general types of the spear fishing guns: (a) the rubber-powered, or sling-type spear gun, and (b) the pneumatic spear gun, which utilizes an air-driven piston to drive the spear shaft down a rifle-like barrel.

The invention discloses a packing carton sealing device capable of achieving automatic overturning. Side plates are arranged on the two sides of a base plate; a top plate is arranged at the tops of the side plates; a support plate is arranged above the base plate; the base plate is provided with a rotating motor; the rotating motor drives the support plate to rotate; the support plate is providedwith a vertical plate; a left overturning plate and a right overturning plate are arranged on the left and right sides of the vertical plate; one ends of the left overturning plate and the right overturning plate are hinged with the top end of the vertical plate; driving mechanisms for driving the left overturning plate and the right overturning plate to overturn left and right around the top endof the vertical plate are arranged in the positions, on the left and right sides of the vertical plate, of the support plate; first vertical rods are arranged on the outer sides of the left overturning plate and the right overturning plate; a cylinder is fixed on the top plate; a piston rod of the cylinder is connected with the upper ends of the first vertical rods; baffle plates for stopping adhesive tape from deviating from the first vertical rods are arranged at the bottom ends of the first vertical rods; and automatic cutting devices capable of cutting off the adhesive tape are arranged between one first vertical rod and the left overturning plate and the other first vertical rod and the right overturning plate. Packing cartons can be automatically overturned; and meanwhile, the adhesive tape can be automatically cut off.

A dosing device is for liquid fuels, e.g., for input into a chemical reformer in order to recover hydrogen, or into a secondary combustion device in order to generate heat. The dosing device has at least one metering device for metering fuel into a metering conduit, and a nozzle body, adjoining the metering conduit, having at least one spray discharge opening that opens into a metering chamber. The dosing device furthermore has a nozzle body that has a downstream support element with a swirl insert, disposed on the spray-discharge side, in which the at least one spray discharge opening is disposed.

The invention relates to a portable net hauling device of a net cage and netting, and belongs to the technical field of mechanical devices for wringing nets on board. The device solves the problems that the existing net wringing device is not beneficial to carry and the efficiency is low. The device comprises a furl unit, a drive unit and an anti-roll unit, wherein the anti-roll unit is used for preventing the netting from passing by the top end of a roll shaft during the lifting process of the netting. A hook unit is arranged on the roll shaft and used for hooking the netting, and the hook unit arranged on the roll shaft rotates upwardly to drive the netting ascend upwardly. The device further comprises a frame main body, wherein the frame main body comprises a hanging unit, a cross tube unit, and a pendent unit, wherein the hanging unit is arranged on the upper portion of the frame main body and bending back downward; the cross tube unit is arranged on the middle portion of the frame main body and welded horizontally to the lower portion of the hanging unit; and the pendent unit is arranged on the lower portion of the frame main body. The portable net hauling device of the net cage and the netting has the advantages of being compact and novel in structure, low in processing cost, convenient to carry, easy to popularize, and being capable of greatly improving the net hauling efficiency of the net cage, and also having the unexpected excellent effect in net hauling of the net cage in the deep water area.

The invention discloses an integrated special bridge structure for bicycles. The integrated special bridge structure for the bicycles comprises at least one steel box beam unit, at least one steel capping beam and at least one pier stud; and the pier stud is arranged under at least one steel capping beam. The steel box beam unit comprises a steel box beam main body, a first air nozzle and a secondair nozzle; the first air nozzle is connected to one side of the steel box beam main body; and the second air nozzle is connected to the other side of the steel box beam main body. The integrated special bridge structure for the bicycles has the advantages that the integrated special bridge structure for the bicycles can be assembled and welded on site in a segmental manner, the transporting is convenient, the construction efficiency is high, the structure is light, solid and reliable, and the manufacturing cost is low.

The invention relates to a double-oscillating bar flexible four-leg walking robot. The robot comprises a machine body, a power supply box, a double-oscillating bar mechanism and a four flexible leg mechanisms, wherein the double-oscillating bar mechanism comprises a machine body, a motor, a screw motor, a push frame and two oscillating bars; the flexible leg mechanisms comprise big legs, small legs, feet, springs, sliding sleeves, inner elastic plates and outer elastic plates; the machine body, the big legs, the small legs and the feet are mutually rotatably connected in series; the motor is used for driving the four flexible leg mechanisms to walk in a horse stance manner, when the big legs swing forwards, the big legs, the small legs and the feet are driven to mutually, flexibly reversely rotate by ground resistance, the two elastic plates pull the slide sleeves to compress the springs, and when the feet are lifted, the springs pull the big legs, the small legs and the feet to mutually rotate forwards through the sliding sleeves and the two elastic plates until the flexible leg mechanisms are straightened to be self-locked; when the big legs swing backwards, the mutual straightening and self-locking capacities of the big legs, the small legs and the feet are improved through the ground resistance, thereby realizing the pedaling walking of the flexible leg mechanisms; and the walking direction can be altered through changing the swing amplitude of the big legs by the screw motor. The double-oscillating bar flexible four-leg walking robot is easy to control, simple in structure and suitable for rapidly walking on irregular pavements, and driving axles are few.

An intelligent safe box comprises an intelligent control module, a locking assembly, a data storage module, an intelligent terminal remote connection module, a function key module, a power module and a shell assembly. The intelligent control module is used for finishing various tasks and data processing, the data storage module is used for storing user operation and other interaction contents, the intelligent terminal remote connection module is used for receiving control commands sent by an intelligent terminal, the key module is used for allowing a user to perform direct key control, the power module is used for supplying power to the modules, the shell assembly is used for fixing of the modules and serves as a safe box body. The intelligent safe box is reasonable in design, can be easily fixed to walls of different structures, safe and convenient to use, and high in intelligent degree, the intelligent terminal remote connection management function is achieved, the safe box can be linked with a home gateway or intelligent electric appliance, the safe box can be connected with other devices of the smart home into a whole, and home intelligence is achieved.

The invention discloses a heat insulation pipe shell for an LNG (liquefied natural gas) filling station pipeline. The heat insulation pipe shell for the LNG filling station pipeline comprises a pipe shell body which is of a hollow cylindrical structure; the pipe shell body comprises two half shells which are of consistent structures; the inner surface of each half shell is in wave-shaped arrangement in the axial direction; grooves are formed in the outside ends of the two end surfaces of each half shell; the heat insulation pipe shell also comprises filling strips; the filling strips are of strip-shaped structures which are matched with the grooves in the same side of the two half shells and are in the same sizes as those of the two grooves; locking rings are arranged on the outer surfaces of the filling strips and are connected with rope pieces used for fixedly connecting the two half shells. The heat insulation pipe shell for the LNG filling station pipeline has the beneficial effects that the structure is simple, the operation is convenient, the practicability is high, more heat can be locked and prevented from dissipating, and the heat is insulated effectively; moreover, the radiating area of the heat insulation pipe shell and a conveying pipeline is small, so that high-efficiency heat insulation is further guaranteed; meanwhile, the heat insulation pipe shell for the LNG filling station pipeline is assembled and disassembled conveniently and quickly; the construction operation difficulty is low; the firmness and the reliability are high; the production cost of the heat insulation pipe shell is also low.

The invention discloses a diffusion connection method of a laminated composite material and low-alloy steel. The method mainly comprises the steps that a niobium foil intermediate alloy is added into the position between contact interfaces of the laminated composite material and the low-alloy steel, the laminated composite material and the low-alloy steel are subject to vacuum diffusion connection, according to the technological parameters, a step-by-step temperature rising manner is adopted, the positions at the temperature of 550 DEG C, 750 DEG C and 950 DEG C are each provided with a platform, the diffusion connection temperature ranges from 1020 DEG C to 1180 DEG C, heat preservation time ranges from 30 min to 80 min, connection pressure ranges from 5 MPa to 15 MPa, the vacuum degree ranges from 1.33*10<-5> Pa to 1.33*10<-4> Pa, and after the temperature of a vacuum chamber is slowly reduced to below 100 DEG C, a furnace door can be opened, and a connected part is taken out. According to the technology, the interface diffusion combination of the laminated composite material and the low-alloy steel can be promoted, the strength and the mechanical property of a connection joint are stable and reliable, and the technology can meet the use requirement of a laminated composite material and low-alloy steel diffusion joint.

The invention provides a pen lock and relates to the technical field of simple locks in order to solve the technical problems of trouble and low efficiency caused by the fact that secondary charging and secondary code scanning are required when a share bike stops temporarily in the prior art. The pen lock comprises a pen body provided with a pen clip, a rotary telescopic pen point arranged at thefront end of the pen body and a lock arranged at the tail end of the pen body, wherein the lock comprises a password input device arranged outside the pen body and a lock body arranged in the pen body. The pen lock is used for simple bike locking.

The invention belongs to the field of special-shaped aircraft design, and particularly relates to an aircraft. The aircraft includes a sector lift-augmentation device, a horizontal actuator, a vertical actuator, an end preventer, a frame and a power unit, the frame is a polygonal prismoid frame, the sector lift-augmentation device is installed on an upper cross beam of the frame, the vertical actuator is installed on a vertical cross beam of the frame, the horizontal actuator is installed on a lower cross beam of the frame, the sector lift-augmentation device, the horizontal actuator and the vertical actuator are driven by the power unit to rotate around corresponding beam axes on the frame, and the end preventer is installed at the corner of the frame. The aircraft has the characteristicsof taking off and landing without a runway, moving forwards with the help of lateral wind power, meanwhile, being capable of self-protecting during falling, and being not causing serious injury whenhitting people or objects, the structure is simple, safe and reliable, very broad application prospects are achieved in transportation, aerial photography and competitive sports.

The invention provides a production process of an antibacterial and anti-crack plastic basin. The raw materials of the antibacterial and anti-crack plastic basin are as follows: 40-50 parts of phenolic resin, 22-28 parts of polyethylene, 15-25 parts of EPDM rubber powder, 10-12 parts of polyolefin elastomer POE, and 4 parts of antibacterial powder ‑6 parts, alum 10‑12 parts. The production process is as follows: Step 1: Weigh 45 parts of phenolic resin, 25 parts of polyethylene, 20 parts of EPDM rubber powder, 11 parts of polyolefin elastomer POE, 5 parts of antibacterial powder, and 11 parts of alum; The obtained raw material is heated at high temperature until it melts into a liquid state, and the temperature is 130-150 degrees Celsius; Step 3: The molten mixture is automatically entered into the injection mold through the assembly line, and is produced through the procedures of filling, compression molding, pressure holding, cooling, warping, and annealing Forming; Step 4: Quality inspection, qualified products are packaged and put into storage. The antibacterial and crack-proof plastic basin is easy to prepare by using a production mold, has low price, has the effect of antibacterial and dust removal, is strong and reliable, is not easy to be damaged, can be used for a long time, and has broad market prospects.

The invention provides a tank wallboard molding male die which comprises a male die, a male die fixing plate, a backing plate, inner hexagon screws, a cylindrical pin and a lower die fixing plate, wherein the male die is positioned in the middle of the male die fixing plate and is connected with the male die fixing plate by virtue of the inner hexagon screw and the cylindrical pin; the backing plate is positioned below the male die fixing plate and is fixedly connected with the male die fixing plate by virtue of the inner hexagon screw; the lower die fixing plate is positioned below the backing plate and is connected with the backing plate together by virtue of the inner hexagon screw. The tank wallboard molding male die provided by the invention adopts once molding based on the die, is high in finished size precision, is capable of greatly improving the production efficiency, and is simple in structure and simple and convenient in disassembly and assembly.

The invention discloses a connecting member of multiple corrugated boards and a connecting method of the connecting member. The connecting member comprises multiple corrugated boards of various shapes, one or more fastening, locking and positioning connecting rods, a plurality of elastic adjusting and positioning plates, at least two end face locking plates and end face latches, wherein the corrugated boards are provided with elastic adjusting and positioning plate holes and fastening and locking connecting rod positioning holes; the two ends of the fastening, locking and positioning connecting rods are provided with slots or check rings respectively; the elastic adjusting and positioning plates are annular bodies; the two end faces are gluing faces; the end face locking plates are annular bodies and the internal diameter of the end face locking plates is matched with the external diameter of the fastening and locking connecting rods; and one end face of the end face locking plate is a gluing face. According to the connecting member and the connecting method, the field assembly of the final corrugated board finished product can be finished without commonly used large-area glue brushing; and the connecting member has a firm, stable and reliable overall structure and is difficult to deform.

The invention discloses a special bridge pier stud structure for a bicycle. The special bridge pier stud structure for the bicycle comprises a bearing table, a pier stud and a pier leg, wherein the pier stud is arranged on the upper portion of the bearing table; the pier leg is arranged on the lower portion of the bearing table; the pier stud comprises a variable-cross-section portion and a uniform-cross-section portion which is connected with the bottom of the variable-cross-section portion; and shapes of different cross sections of the variable-cross-section portion are the same. The specialbridge pier stud structure for the bicycle can be assembled and welded in a segmented manner in field, facilitates transportation, is high in construction efficiency, light in weight, firm and reliable, and low in cost.

The invention provides a motor self-adaptive adjustment method and device for an electric toothbrush, relates to the technical field of electric toothbrushes, is applied to an electric toothbrush witha sound wave elastic sheet type vibration motor. The method comprises the following steps of acquiring each frequency point of a motor of the electric toothbrush in a preset frequency range and a working current corresponding to each frequency point; and determining an optimal frequency point according to the corresponding relation between the working current and the frequency points; The methodis advantaged in that the vibration intensity of the motor is adjusted according to the optimal frequency point, operation is simple, calibration reliability is high, and the electric toothbrush can work according to the frequency point with the optimal effect.

Die press fitting equipment comprises an upper connection support seat, an upper die connection block, an upper die moving block, a lower base, a worktable, cylinder pillars, a left feeding support and a right discharging support; the upper connection support seat is positioned at the topmost part of the die press fitting equipment; the upper die connection block is positioned at the center of upper part of the upper connection support seat; the upper die moving block is positioned below the upper die connection block and is connected with the same by a bolt mode; the lower base is positioned above the worktable and is fixedly connected with the same by a bolt mode; one cylinder pillar is arranged at each of four corners of the worktable; the left feeding support is positioned at the left of the worktable and is connected with the same by a welding mode; the right discharging support is positioned at the right of the worktable and is connected with the same by a welding mode. The die press fitting equipment is simple in structure, smaller in size, simple to operate, convenient to use and low in price.