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259results about How to "Lower usage limit" patented technology

Method for performing electric line patrolling based on onboard laser radar

The invention provides a method for performing electric line patrolling based on an onboard laser radar. The method comprises the following steps: (1) acquiring real point cloud data through an onboard laser radar system of an unmanned aerial vehicle, providing data basis for monitoring personnel of a power transmission line, and processing the point cloud data; step (2) performing distance measurement and area measurement on any point of the line based on a three-dimensional measurement analysis module, thereby directly and precisely measuring the coordinate and elevation of each point of thepower transmission line, space distance between any two points, and any point elevation; step (3) dividing point cloud data into ground surface point cloud, power transmission body point cloud and ground object point cloud in corridor based on filter processing and point cloud classification on the laser point cloud by a filter and ground object classification module. The method provided by the invention has the advantage of quickly acquiring high-precision laser point cloud and high-resolution digital image, whether the route selection design of a newly established line, or the dangerous point line patrolling checking, line capital management and various specialty analysis potentials on the established line.
Owner:SHANGHAI HUACE NAVIGATION TECH

Energy consumption-oriented cloud workflow scheduling optimization method

InactiveCN105260005AImplement energy consumption calculation methodKeep Execution Time EfficientResource allocationPower supply for data processingCloud workflowWorkflow scheduling
The invention discloses an energy consumption-oriented cloud workflow scheduling optimization method. The method comprises the following steps: (1) establishing energy consumption-oriented cloud workflow process model and resource model; (2) calculating a task priority; (3) taking out a task t with highest priority from a task set T, finding out a virtual machine set VMt capable of executing the task t, and calculating energy consumption for distributing the task t to each virtual machine in the VMt and completing all distributed tasks; (4) finding out a vm with minimal energy consumption, if only one vm has the minimal energy consumption, distributing the task t to the vm, and if a plurality of vms have the minimal energy consumption, distributing the task t to the vm with characteristics that the vm has the minimal energy consumption and a host in which the vm is located has highest performance per watt; deleting the task t from the task set T, and if the task set T is not null, going to the step (3), or otherwise, going to the step (5); and (5) outputting a workflow scheduling scheme. According to the scheduling optimization method provided by the invention, an energy consumption factor is considered, so that the energy consumption for task processing by the host is effectively reduced while workflow execution time efficiency is kept.
Owner:南京喜筵网络信息技术有限公司

System and method for power line inspection

The invention provides a system and a method for power line inspection. The system comprises a laser radar system mounted on an unmanned aerial vehicle. Real point cloud data is obtained and processedby the laser radar system mounted on unmanned aerial vehicle so as to provide a data foundation for power line monitoring personnel. The system further comprises a three-dimensional measurement and analysis module. The three-dimensional measurement and analysis module is used for realizing distance measurement and area measurement of any point on the line; measuring coordinate and elevation of each point of the power line, spatial distance between any two points and elevation of any point directly and accurately; and measuring interphase distance of power lines accurately, so as to provide aprecise scale for the manufacturing and mounting of spacer. According to the system and the method for power line inspection, the invention has the advantages that the high-precision laser point cloudand the high-resolution digital image can be rapidly acquired, the operation mode and technical advantages that are not possessed by the traditional mapping approaches are brought to whether the design selecting of the trend of the to-be-built line or the dangerous point inspection of the existing line, line asset management and various professional analysis.
Owner:SHANGHAI HUACE NAVIGATION TECH

A system for generating atmospheric pressure diffuse discharge non-equilibrium plasma

The invention discloses a system for generating unbalanced plasma of atmospheric pressure diffuse discharge, comprising: a DC power supply, a resonant charging circuit, a Tesla transformer resonant boost circuit, a pulse steepening circuit, a current limiting resistor, and a linear electrode. The resonant charging circuit includes Charging thyristor, charging inductance, filter capacitor, primary side capacitor, Tesla transformer resonant step-up circuit includes discharge thyristor, Tesla transformer, secondary side capacitor, pulse steepening circuit includes three-electrode spark switch and trigger pole resistor, the positive pole of the DC power supply is connected to The anode of the charging thyristor, the negative pole of the DC power supply are grounded, the cathode of the charging thyristor is connected to one end of the charging inductor, the other end of the charging inductor is connected to the anode of the discharging thyristor, and the filter capacitor is directly connected in parallel with the DC power supply. The invention can solve the technical problems of difficulty in obtaining large-volume plasma, limited ionization efficiency, low energy utilization rate and limited application in the existing discharge form of atmospheric pressure non-equilibrium plasma.
Owner:HUAZHONG UNIV OF SCI & TECH

Geological disaster prevention and control system and method for preventing flood and debris flow

The invention relates to a geological disaster prevention and control system and method for preventing flood and debris flow, and belongs to the technical field of geological disaster prevention and control. The geological disaster prevention and control system comprises a separation system, an energy dissipation system, a silt parking and desilting system and a diversion canal; the separation system comprises more than one stone retaining ditch and a water retaining gate; the energy dissipation system comprises a speed reduction slot, an anti-climbing baffle, an anti-impact baffle and a siltseparation passage; and the silt parking and desilting system comprises a silt parking place, a silt inlet, a flume, a silt discharge gate and a silt discharge passage. According to the invention, thebreakout characteristics and provenance properties of debris flow and flood are sufficiently considered; by arranging the separation system, the energy dissipation system, the silt parking and desilting system and the diversion canal, the debris flow is subjected to energy dissipation; if flow and an impact force of the debris flow or the flood are excessive, multiple stages of geological disaster prevention and control systems for preventing the flood and the debris flow can be arranged along the outside of a riverway or a cheuch so as to implement staged energy dissipation and decrement ofthe debris flow, carry out staged component control on the debris flow disaster and implement geological disaster prevention and control on the flood and the debris flow.
Owner:KUNMING UNIV OF SCI & TECH

Multi-functional foam soap dispenser

The invention discloses a multi-functional foam soap dispenser. The multi-functional foam soap dispenser comprises a shell with a soap liquid outlet. A mixing and diluting device, a foaming device, a driving device, a raw material cavity and a water cavity are arranged in the shell. The mixing and diluting device is provided with a feeding port communicated to the raw material cavity, a water inlet communicated with a water outlet of the water cavity and a discharge port communicated with an inlet of the foaming device. The soap liquid outlet is connected with the foaming device. The driving device is connected with the mixing and diluting device and the foaming device and serves as a power source for the mixing dilution device and the foaming device.The multi-functional foam soap dispenser has following beneficial effects: the mixing and diluting device is used for mixing and diluting pasty or viscous soap liquid raw material and water; after diluting the above at the proper concentration, bubbles are made and liquid is discharged in the foaming device so that soap liquid raw material at the high concentration and liquid discharge are achieved and use restriction is reduced so that the multi-functional foam soap dispenser is very suitable for a human body to use; in addition, the mixing and diluting device and the foaming device are both driven by the set of driving devices so that occupied space of the soap dispenser is greatly decreased and the soap dispenser is made more compact; and the multi-functional foam soap dispenser is applied to generation of soap liquid.
Owner:严健枝

Non-equilibrium plasma generator and granular powder surface modification treatment system

InactiveCN103826379AImprove imbalanceLarge discharge peak current densityPigmenting treatmentPlasma techniqueLow voltagePlasma generator
The invention discloses a non-equilibrium plasma generator and a granular powder surface modification treatment system. The non-equilibrium plasma generator comprises a cavity body, a shielding mesh and a high voltage electrode unit and a low voltage electrode which are both arranged in the cavity body, wherein the high voltage electrode unit is arranged on the lower surface of a high voltage electrode insulation cover plate, and comprises high voltage line electrodes in the distribution of a plurality of uniform arrays, and first through holes in the distribution of a plurality of uniform arrays are arranged on the high voltage electrode insulation cover plate; one end of each high voltage line electrode is fixed to one end of a high voltage electrode down-lead; the other end of the high voltage line electrode is fixed by a high voltage electrode fixing bolt, and the other end of the high voltage electrode down-lead is led out through the first through hole; all the high voltage electrode down-leads are connected and then used as the impulse high voltage input end of the non-equilibrium plasma generator. The non-equilibrium plasma generator and the granular powder surface modification treatment system adopt high voltage nanosecond repeat frequency impulse to directly drive non-equilibrium plasmas in the air under the atmospheric pressure, the discharge peak current density is larger, the efficiency of generating active particles is better, and the non equilibrium of plasmas is higher.
Owner:HUAZHONG UNIV OF SCI & TECH

Portable integrated inflatable antenna

The invention discloses a portable integrated inflatable antenna comprising an inflation air bag and a paraboloid antenna body. The bottom of the inflation air bag is provided with a tray, a feed source is arranged on the top of the inner surface of the inflation air bag through a support, the bottom of the inside of the tray is provided with inflation pressure measuring equipment and a set of batteries, the bottom of the tray is provided with a cardan joint composed of a cylindrical head and a rotary cover, and the cylindrical head penetrates through a ball head connecting rod and a fixing rod. The feed source is fixed on the top of the support, a signal receiving face is towards the paraboloid antenna body and located on a focus of the paraboloid antenna body, a signal line of the feed source is connected with a through-the-wall electrical connector arranged on the top of the inflation air bag, and the signal line is connected with an external signal transceiver through the through-the-wall electrical connector. By means of the modularized and integrated design, integrated installation and use of the inflatable antenna are achieved, influences of severe weather and geographical environment conditions on work of the antenna are overcome, and the antenna has the advantages of being compact in structure, low in weight, long in service life, simple, fast and convenient to operate, good in portability and the like.
Owner:湖南航天远望科技有限公司

Wheel-leg dual-purpose shape shifting robot

InactiveCN104340292ALower usage limitPerfect imageVehiclesPropellerEngineering
The invention provides a wheel-leg dual-purpose shape shifting robot. The wheel-leg dual-purpose shape shifting robot main body comprises a machine body, legs and shape shifting systems thereof as well as wheel parts and shape shifting systems thereof, wherein the machine body of the robot is shaped like a hemisphere with flat bottom; a machine body interior platform is arranged in the machine body; the area of a machine top cover is larger than that of the bottom surface; six retractable robot legs with six structures are arranged in the machine body; when the legs are in an expanded state, the robot can walk; when the legs are retracted and the front ends of the legs are buckled in recesses of a shell, the side surface of the whole shell of the robot is a smooth spherical surface with no edge; a landing gear and a driving wheel are arranged at the bottom of the machine body; when the legs of the robot are retracted, the driving wheel is in contact with the ground to move forward and backward. The wheel-leg dual-purpose shape shifting robot provided by the invention can adapt to the needs of different environments and has the advantages of smaller use restriction and convenience for carrying; as the leg shape shifting systems are driven by a rotary propeller, the wheel-leg dual-purpose shape shifting robot provided by the invention is more efficient and fast; through double-loop design of the wheel part shape shifting systems, the turning radius of the robot during turning in a narrow and small space is greatly decreased.
Owner:YANSHAN UNIV

Method for generating codebooks under relevant channels in wireless communication system

The invention relates to a method for generating codebooks under relevant channels in a wireless communication system, and belongs to the technical field of wireless communication. In the method, a base station and users use two same initial codebooks, one initial codebook is composed of conventional DFT code words, and the other initial codebook is composed of random vectors. Each user calculates the relevant matrix rank information of an own channel and feeds the matrix rank information back to the base station; and the base station and the users independently generate new two-stage target codebooks based on weighing DFT code words by the same algorithm by utilizing the initial codebooks according to the rank information. The weighing DFT code word-based codebooks designed by the method have a flexible structure of the two-stage target codebooks, improve the quantified accuracy of the channels, and can be adaptively applied to the relevant condition of different channels; and the existing rank feedback information in the conventional standard is utilized fully without causing the expense of an additional system feedback link, so the weighing DFT code word-based codebooks are compatible with the conventional system, and can be applied to the future wireless communication system conveniently.
Owner:BEIHANG UNIV +1

Microchannel and manufacture method thereof

ActiveCN107519960ARich surface modification contentRealize and expand new functionsAdditive manufacturing apparatusLaboratory glasswaresIsosceles trapezoidSurface pattern
The invention provides a microchannel and a manufacture method thereof. The manufacture method of the microchannel comprises the following step: folding a plane development structure to obtain a microchannel, wherein the cross section of the microchannel is a regular polygon of which the number of sides is N, and the plane development structure comprises N substructures of which the cross sections are isosceles trapezoids. According to the manufacture method of the microchannel, which is provided by the invention, the obtained cross section shape of the microchannel can be polygonal such as triangular, quadrangular, pentagonal or hexagonal, so that the geometrical shape is richer; and the method can be used for carrying out multiple times or multiple types of local surface modification or local surface processing on the inner wall of the microchannel, i.e., the upper surface of the plane development structure, so that different surface pattern designs can be carried out on all surfaces of the inner wall of the microchannel, then the plane development structure can be folded and closed to form a polygonal microchannel of which the inner wall has three-dimensional patterning modification, and then the design of the microchannel which has a three-dimensional complex inner wall shape can be realized.
Owner:TSINGHUA UNIV +1

Preparation technology of ultraviolet-ageing-resisting PBO (Poly-p-phenylene Benzobisoxazole) fibers

The invention relates to the field of fiber preparation and in particular relates to a preparation technology of ultraviolet-ageing-resisting PBO (Poly-p-phenylene Benzobisoxazole) fibers with excellent mechanical properties including ultrahigh elasticity, high modulus ratio and the like. The preparation technology comprises the following steps: firstly, activating surfaces of the PBO fibers by utilizing an acid etching modifying solution and etching the surfaces to form relatively shallow grooves and fine lines; in a process of dropwise adding a weak alkaline solution to neutralize, deepeningthe relatively shallow grooves and fine lines; in a reaction process of the PBO fibers with cracks and a carbon-based suspension solution, gradually filling oxidized graphite and fine aluminum powderinto the cracks of the PBO fibers; in heat treatment in vacuum or a protection atmosphere, reducing the oxidized graphite into expanded graphite through aluminum; combining a common effect of the heat treatment to cause breaking at weak parts of the original PBO fibers with the cracks; connecting broken parts through the expanded graphite and filling; then carrying out ultraviolet-resisting modification and covering the surfaces of the fibers with one layer of uniform ultraviolet-ageing-resisting coating, so as to absorb ultraviolet light and reduce ageing, caused by the ultraviolet light, ona PBO fiber matrix.
Owner:深圳市凌晨知识产权运营有限公司
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