39results about How to "Avoid restrictive" patented technology

The invention relates to an unmanned ship route optimization method based on environment forecast information. According to the method, environment information factors possibly influencing marine navigation of an unmanned ship are collected through meteorological forecast, the current position of the unmanned ship is confirmed through a global positioning system, and an accurate unmanned ship navigation state is obtained; modeling is performed on the environment of a sea area by considering the influences of static barriers in an unmanned ship navigation area and the meteorological factor of ocean currents on the unmanned ship in combination with obtained environment data; and design is performed based on an unmanned ship route planning algorithm of a particle swarm optimization algorithm,an unmanned ship route designed through the planning algorithm avoids the static barriers as much as possible, and the ocean current area beneficial for unmanned ship navigation is utilized. Throughthe method, the unmanned ship can design the route according to the environment forecast information, the route can be timely adjusted at any time according to weather environment changes, the situation that a bad environment on the sea area threatens the safety of the unmanned ship is avoided, and the economy and safety of unmanned ship navigation are improved.

The invention relates to a magnetic suspension track obstacle detection method based on point cloud. The magnetic suspension track obstacle detection method comprises the following steps: 1) buildinga magnetic suspension track vehicle-mounted mobile scanning system; 2) obtaining original reference point cloud of the magnetic suspension rail surface and to-be-detected point cloud data through mobile scanning; 3) establishing K-D tree index and matching the K-D tree index with to-be-detected point cloud data to obtain obstacle point cloud; 4) performing Euclidean clustering processing on the obstacle point cloud to obtain an obstacle point cloud clustering set; And 5) finally outputting the outline boundary and position of each independent obstacle to realize automatic detection of the obstacle on the magnetic suspension track surface, compared with the prior art, the method has the advantages that the environmental perception capability is stronger, and the information support effect can be realized on the operation and maintenance safety of the magnetic suspension.

The invention discloses a hyper-spectral remote sensing image classification method based on self-adaptive hierarchical multi-scale. The method comprises the following steps that step 1, the irregular neighborhood structure of pixels is calculated according to the spectral angle; step 2, the scale parameters of each layer are determined according to the Ka measure hierarchy in the irregular neighborhood structure, the corresponding kernel matrix of each layer is calculated layer by layer and the weight of the kernel function of each layer is obtained by using the maximum projection variance so that a self-adaptive hierarchical multi-scale kernel function is obtained; and step 3, a hyper-spectral image is mapped to the kernel space of the self-adaptive hierarchical multi-scale kernel function obtained in the step 2, and the pixels to be measured are linearly represented by a dictionary formed on the basis of the known training sample pixels so that a reconstruction sparse matrix is obtained and the pixels to be measured are allocated to the optimal reconstruction category. The hyper-spectral remote sensing data can be rapidly and accurately classified.

The invention discloses a multispectral photoacoustic and optical coherence tomography dual-mode imaging device and a multispectral photoacoustic and optical coherence tomography dual-mode imaging method. The multispectral photoacoustic and optical coherence tomography dual-mode imaging device comprises a multispectral photoacoustic / optical coherence tomography excitation light source, a dichroscope assembly, a scanning head assembly, a photoacoustic signal detection assembly, an interference signal detection assembly and a signal acquisition / processing assembly. The photoacoustic signal detection assembly and the interference signal detection assembly are connected with the signal acquisition / processing assembly, the scanning head assembly is positioned right above samples and is connected with the signal acquisition / processing assembly, the photoacoustic signal detection assembly is positioned below the samples, the dichroscope assembly is connected with the interference signal detection assembly and the scanning head assembly, and the excitation light source is generated by a super-continuous spectrum laser device and is connected with the dichroscope assembly by an adjustable filter. The multispectral photoacoustic and optical coherence tomography dual-mode imaging device and the multispectral photoacoustic and optical coherence tomography dual-mode imaging method have theadvantages that a dual-mode complementary imaging system can be built by the aid of the multispectral photoacoustic and optical coherence tomography dual-mode imaging device and the multispectral photoacoustic and optical coherence tomography dual-mode imaging method, and accordingly clinical development of complementary imaging can be promoted to a certain extent.

The invention provides a real-time indexing method based on a reverse index. The method comprises the following steps: pretreating data; updating an internal memory index database; updating a disk index database. With adoption of the real-time indexing method based on the reverse index, on the premise of not affecting the searching performance as much as possible, the updated index database number is reduced, the limitation to the data size by the internal memory database is eliminated, a multipath processor is optimized in a targeted manner, data updating of a multipath concurrence multithreading is supported better, a more flexible data updating mode and efficient data updating efficiency are provided, the data timeliness is enhanced, and excellent searching experience is provided for a user.

The invention relates to the field of frozen soil physics test equipment, and provides an anti-locking soil body frost heaving test sample tube. The anti-locking soil body frost heaving test sample tube mainly comprises an outer tube body, an inner tube body, a fixing bolt and the like, and is characterized in that the inner tube body is composed of an inner tube upper structure, an inner tube middle structure and an inner tube lower structure; the lower structure is a tube ring I which is made of a PMMA material and is provided with a flat lower surface and a convex upper surface; bolt holesI are reserved in the bottom of the tube ring I; the middle structure is composed of a group of tube rings II which are made of the PMMA material and are provided with concave lower surfaces and convex upper surfaces; the upper structure is a tube ring III which is made of the PMMA material and is provided with a flat lower surface and a convex upper surface; bolt holes III are reserved in the topof the tube ring III; the inner tube upper structure, the inner tube middle structure and the inner tube lower structure connected into the inner tube body in a concave-convex buckled mode; the outertube body is a tube ring IV made of the PMMA material; bolt holes IV are reserved in the bottom of the top of the tube ring IV; and the outer tube body and the inner tube body are connected into a whole through fixing bolts. According to the anti-locking soil body frost heaving test sample tube, the locking phenomenon in a laterally-confined soil body frost heaving test can be effectively avoided, and the influence of the side friction force between a temperature sensor and a moisture sensor as well as the side friction force between a soil body and the sample tube on the data authenticity can be avoided.

The invention relates to a cable moving winch. A motor is connected with the high-speed end of a speed reducer, the speed reducer is connected with a coupler, the other end of the coupler is connected with a rope arrangement lead screw installed on a machine frame, two guide shafts are symmetrically arranged on the same horizontal plane on the two sides of the rope arrangement lead screw, and a rope arrangement wheel assembly is installed on the rope arrangement lead screw and the guide shafts and can repeatedly move along the guide shafts. The cable moving winch has the advantages that a traditional rope arrangement wheel of a winch rope guider is arranged on the ground at 26.77 degrees instead of being perpendicular to the ground, so that the rope guider arranges and reels off ropes on the same plane at any angle; meanwhile, a compressed spring is arranged at the bottom of the rope arrangement wheel, so that the height is adjusted mechanically, the ropes are taken up and paid off more smoothly, territory limitation is well avoided, and universality is improved.

The invention discloses a low-temperature preparation method for rutile-phase TiO2 / BiOX nanometer photocatalyst powder. The low-temperature preparation method comprises the following steps: step 1, adding a titanium compound into an alcohol solvent and mixing uniformly; adding a certain amount of distilled water and placing in a drying oven at a low temperature below 80 DEG C to generate sediments; then separating the sediments and washing the sediments by water; drying to obtain rutile-phase TiO2 powder; step 2, adding the prepared rutile-phase TiO2 powder into a bismuth-containing compound solution according to a certain molar ratio so as to obtain a mixture; placing the mixture in the drying oven at the low temperature below 80 DEG C to generate sediments; washing and drying the sediments to obtain the TiO2 / BiOX nanometer photocatalyst powder. The method is easy to operate, low in equipment requirements and small in energy consumption; the large-scale production is convenient to realize.

The embodiment of the invention discloses a method and a system for adjusting a voice code rate, a terminal and a network side device. The method comprises the steps of obtaining the channel transmission condition of a terminal based on uplink data of the terminal by the network side device; determining a maximum rate mode of transmission supported by the terminal based on the channel transmission condition and obtaining a first rate mode corresponding to the downlink data of the terminal; comparing the maximum rate mode with the first rate mode; when the maximum rate mode is not equal to the first rate mode, adjusting the rate mode of the to-be-transmitted uplink / downlink data based on the comparison result, and transmitting the uplink / downlink data; and indicating an opposite terminal / a local terminal to adjust the code rate based on the rate mode in the received data.

The invention provides a solder paste printing method. A preparation method comprises the following specific steps: a printed circuit board is provided; a first welding disc area, a second welding disc area and a non-welding disc area are arranged on the upper surface of the printed circuit board; the thickness of printed solder paste needed by the first welding disc area is larger than the secondwelding disc area; a first welding stop layer is prepared on the non-welding disc area; a second welding stop layer is prepared on the first welding stop layer; the second welding stop layer around the second welding disc area is removed to form a first printing area; a steel net is used for covering; the solder paste is coated on the steel net; a scraper moves on the steel net, and is deformed for sinking when passing through the first printing area and tightly bonded on the first welding stop layer; the scraper is pressed to enable the solder paste to penetrate through the steel net to coaton the first welding disc area and the second welding disc area; the second welding disc area and the periphery of the second welding disc area are recessed down, so that the thickness of the solderpaste covering the second welding disc area is smaller than he thickness of the solder paste covering the first welding disc area; and the steel net is taken down to finally prepare the solder paste with different thicknesses on the same printed circuit board.

The invention discloses an instant reservation method for vehicle service. The method comprises the following steps: receiving a first reservation request which is sent by a client, is used for serving a vehicle and is not provided with a reservation time period, converting the first reservation request into a to-be-executed reservation request when the first reservation request needs to be executed immediately, and adding the to-be-executed reservation request into a dynamic monitoring list for dynamic monitoring; in the dynamic monitoring time period, monitoring and judging whether the remaining travel time and / or the remaining travel distance of the reservation request to be executed meets a first threshold value or not; and if yes, implanting the reservation request to be executed intoa corresponding position in a to-be-served list of an execution shop according to the dynamic simulation scheduling position in the dynamic monitoring time period. The execution store is the store which finally provides service for the reservation request to be executed. According to the method, the immediate reservation is used for replacing the advanced reservation date and time segment in theexisting method, the reservation waiting period is eliminated, and the occurrence probability of uncertain reservation events is reduced.

The invention relates to the field of genetic engineering, and in particular to a plasmid vector, which is capable of flexibly implementing non-background TA cloning, cohesive end cloning and blunt end cloning and is capable of implementing temperature-induced protein expression, and a construction method of the plasmid vector. The plasmid vector is closed-ring shaped double-stranded DNA, which contains a gene, which is capable of coding toxic protein ccdB, as a negative selection marker. A flexible cloning function and a temperature-induced expression function of the plasmid are verified. Theplasmid, which is more convenient and efficient, can play an important role in the field of genetic engineering.

The invention discloses a radial floating grinding device for an industrial robot. The radial floating grinding device comprises a flange installation plate, a grinding motor, a universal joint assembly and a radial floating device; the grinding motor and the radial floating device are arranged on the flange installation plate, the output shaft of the grinding motor is connected with a connectingrod through the universal joint assembly, the connecting rod penetrates through the radial floating device, the other end of the connecting rod is connected with a grinding tool, the connecting rod transmits the pressure on the grinding tool to the radial floating device through the deviation state of the connecting rod, and the radial floating adjustment is produced by the radial floating devicethrough the connecting rod under the action of the universal joint assembly. According to the radial floating grinding device, a transmission connection mode of universal joint transmission and a radial joint bearing is adopted, the air intake of each radial distribution cylinder in the device is controlled by an electromagnetic valve, combined with the floating characteristics of the radial floating device, various changes generated by the grinding wheel posture when the grinding plane changes can be automatically adapted, and thus the characteristic of constant force floating in any direction of a grinding wheel is achieved.

The invention discloses a genetically engineered bacterium for producing L-menthol as well as a construction method and application of the genetically engineered bacterium, and belongs to the technical field of metabolic engineering. According to the genetically engineered bacterium, saccharomycetes are used as starting strains, a metabolic pathway of the L-menthol is constructed in the saccharomycetes, and the L-menthol is produced by a fermentation method for the first time; according to the constructed genetically engineered bacterium for producing the L-menthol, a cheap fermentation culture medium is used for culturing for about 4 days, and the fermentation yield of the L-menthol reaches 5.03 mg / L; and compared with the current production technology of the L-menthol, the fermentation method for producing the L-menthol has the advantages that the period is short, the market demand is fed back quickly, only common fermentation raw materials are needed in the production process, plantsource precursor substances such as menthone and thymol do not need to be added, and the limitation of plant raw materials is overcome.

The invention discloses a water storage air conditioner comprising a box body, a base, a refrigeration device arranged on the base and used for refrigeration, an energy storage device connected with the refrigeration device and storing a fluid medium, and an air blowing device arranged at the side of the energy storage device. The energy storage device is rectangular or funnel-shaped, and refrigeration strips connected with the refrigeration device and used for increasing the refrigeration speed of the fluid medium are arranged in the energy storage device in a cross manner. The base is equipped with a power supply used for providing power for the refrigeration device and the air blowing device. By adopting the device, electricity expense can be reduced. The air blowing device makes the refrigeration effect of the air conditioner softer, and the air blowing device has a humidifying effect. Timed energy storage and release can be set. As the built-in power supply is adopted, the problem that the using space is limited when the water storage air conditioner adopts external power supply is solved, and the water storage air conditioner is applicable to different environments.

The invention discloses an adaptive micro-algal photo-biological reaction system and method. The system comprises a middle chamber, a left lateral chamber and a right lateral chamber and is characterized in that the left lateral chamber and the right lateral chamber are disposed on left and right sides of the middle chamber, respectively, an anion exchange membrane and a cation exchange membrane are disposed between the middle chamber and the left lateral chamber and between the middle chamber and the right lateral chamber, respectively, both the bottom of the left lateral chamber and the bottom of the lateral chamber are provided with liquid inlets, both the top of the left lateral chamber and the top of the right lateral chamber are provided with liquid outlets, micro-algal culture liquid is disposed in the middle chamber, the top center of the middle chamber is provided with a gas outlet, an exhaust pipe is inserted into the middle chamber through the gas outlet, both the left and right ends of the top of the middle chamber are provided with aeration holes, and a first aeration pipe and a second aeration pipe are inserted into the middle chamber respectively through the aeration holes. The adaptive micro-algal photo-biological reaction system and method is widely applicable to the fields such as biology, environment protection and energy.

The invention provides a real-time indexing method based on a reverse index. The method comprises the following steps: pretreating data; updating an internal memory index database; updating a disk index database. With adoption of the real-time indexing method based on the reverse index, on the premise of not affecting the searching performance as much as possible, the updated index database number is reduced, the limitation to the data size by the internal memory database is eliminated, a multipath processor is optimized in a targeted manner, data updating of a multipath concurrence multithreading is supported better, a more flexible data updating mode and efficient data updating efficiency are provided, the data timeliness is enhanced, and excellent searching experience is provided for a user.

The invention relates to the technical field of Internet of Things, and provides an intelligent sound box control method and device, electronic equipment and a storage medium. The method comprises thesteps of detecting the currently connected network of an intelligent sound box and detecting the user equipment connected to the network; and binding and connecting the intelligent sound box with theuser equipment, receiving a voice instruction and judging the source of the voice instruction; and correspondingly entering a long-distance use state or a short-distance use state of the intelligentsound box according to whether the voice instruction comes from the bound user equipment or not. With application of the method, the spatial limitation of interaction between the user and the intelligent sound box can be solved.

The invention relates to a method for detecting obstacles on a magnetic levitation track based on a point cloud, comprising the following steps: 1) building a vehicle-mounted mobile scanning system for a magnetic levitation track; ; 3) establish a K-D tree index, and carry out feature matching with the point cloud data to be detected to obtain the obstacle point cloud; 4) after the obstacle point cloud is carried out to the European clustering process, obtain the obstacle point cloud clustering set; 5 ) Finally, the outline and position of each independent obstacle are output, which realizes the automatic detection of obstacles on the magnetic levitation track surface. Compared with the prior art, the present invention has stronger environmental perception capability, and can provide information support for the operation and maintenance safety of the maglev, and the like.

A strip support and alignment device (1), particularly for strips to be cut in a cutting machine, the device comprising: a sheet (3) that is stretched between a station (5) for feeding at least one strip and a station (7) for processing said strip, which defines a support and alignment surface (17) for the strip, first means (9) for fixing the sheet (3) to the feeding station (5), second means (11) for fixing the sheet (3) to the processing station (7), means (13) for winding and unwinding the sheet (3), which are adapted to wind or unwind the sheet (3) in order to vary its length depending on the distance between the feeding station (5) and the processing station (7).

The invention discloses a microchannel plate and a preparation method thereof. The preparation method comprises the following steps: providing a substrate; forming a cylindrical array at a preselected position on one surface of the substrate; depositing an electron multiplication material on the surfaces of the substrate and the cylindrical array to form an electron multiplication layer; an insulating material is applied to the electron multiplication layer until the cylindrical array is completely covered, and an insulating layer is formed; grinding and polishing the surface of the insulating layer in the obtained structure until the top end of the cylindrical array is exposed; removing the substrate, and grinding and polishing the surface, combined with the substrate, in the structure until the bottom end of the cylindrical array is exposed; removing the cylindrical array to obtain an insulating layer structure which is provided with a through hole and is coated with an electron multiplication layer on the through hole; and respectively depositing conductive materials on the upper surface and the lower surface of the insulating layer structure except the through holes. The problems of large depth-to-width ratio micropore etching, base material high-temperature long-time treatment deformation and difficulty in uniform manufacturing of micro-channel inner wall film materials in the preparation process of the micro-channel plate are solved.

The embodiment of the invention discloses a method and a system for adjusting a voice code rate, a terminal and a network side device. The method comprises the steps of obtaining the channel transmission condition of a terminal based on uplink data of the terminal by the network side device; determining a maximum rate mode of transmission supported by the terminal based on the channel transmission condition and obtaining a first rate mode corresponding to the downlink data of the terminal; comparing the maximum rate mode with the first rate mode; when the maximum rate mode is not equal to the first rate mode, adjusting the rate mode of the to-be-transmitted uplink / downlink data based on the comparison result, and transmitting the uplink / downlink data; and indicating an opposite terminal / a local terminal to adjust the code rate based on the rate mode in the received data.

The invention discloses an in-plant economic operation method based on a static load distribution table, and the method comprises the following steps: S1, building a load static distribution model, and determining a model solving algorithm; S2, discretizing a feasible output space of the hydropower station with certain precision under different water heads, solving an optimal distribution scheme of all discrete loads according to a flow characteristic curve of each unit, and establishing an optimal static load distribution table under each water head; and S3, searching a load distribution scheme corresponding to the actual load instruction in the optimal static load distribution table under each water head to realize optimal distribution of the current time period. The method has the advantages of overcoming the limitation of the calculation scale and complexity of a traditional in-plant economic algorithm, avoiding falling into a local optimal solution, improving the operation efficiency and guaranteeing the real-time dispatching operation of a power station.

The present invention relates to the technical field of young children dyspepsia and also discloses a maternal and infant care young children dyspepsia nursing device. The maternal and infant care young children dyspepsia nursing device comprises a shell body, both sides of the shell body are fixedly connected with connection belts, the connection belts are internally provided with air flow pipes,a screw rod is movably connected with connection parts of the shell body with the connection belts, a shaft sleeve sleeves a surface of the screw rod, a surface of the shaft sleeve is hinged with a rotating shaft, both ends of the rotating shaft are fixedly connected with supporting plates, and one ends, far away from the rotating shaft, of the supporting plates are fixedly connected with a telescopic rod; the screw rod is meshed with the rotating shaft under blowing of air flow, mesh rotation of the screw rod and the rotating shaft has a certain vibration, the vibration is transmitted to a surface of a circular disk and functions on an infant's belly, besides, the circular disk moves on a surface of the rotating shaft, a moving process of the circular disk presses the telescopic rods andsprings in the supporting plates, spring amplitude is very small, that is, the rotating shaft vibrates in a slight frequency in a vertical direction, and the circular disk vibrates in a slight frequency on young children's belly, thereby achieving effects of massaging the infant's belly and promoting peristalsis of intestines and stomach.

The invention relates to a route optimization method for an unmanned boat based on environmental forecast information. Collect the environmental information factors that may affect the unmanned boat when sailing at sea through the weather forecast, and use the global positioning system to locate the current position of the unmanned boat to obtain the accurate sailing status of the unmanned boat; the location of the unmanned boat's navigation area will be considered The influence of meteorological factors such as static obstacles and ocean currents on the unmanned vehicle, combined with the obtained environmental data to model the environment of the sea area; the design of the route planning algorithm of the unmanned vessel based on the particle swarm optimization algorithm, and the unmanned vessel designed by the algorithm The route avoids static obstacles as much as possible and takes advantage of the favorable sea current area for unmanned boat navigation. The invention realizes that the unmanned boat can design the route according to the environmental forecast information, and can make timely adjustments to the route according to the change of the weather environment at any time, avoiding the threat of the harsh environment on the sea area to the safety of the unmanned boat, and improving the navigation of the unmanned boat. economy and safety.