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94results about How to "Avoid repeated operations" patented technology

Deep learning image identification method and deep learning image identification system used for intelligent driving, and terminal device

The invention provides a deep learning image identification method and a deep learning image identification system used for intelligent driving, and a terminal device. The deep learning image identification system comprises a sharing convolutional network, an area segmentation network, and a target identification network. The area segmentation network is used for area classification processing based on a characteristic graph extracted by the sharing convolutional network, and the target identification network is used for target identification positioning processing based on the characteristic graph extracted by the sharing convolutional network. The sharing convolutional network is monitored by using the area segmentation result acquired by the area segmentation network and the target identification result acquired by the target identification network, and the sharing learning of the area segmentation network and the target identification network is completed. An obvious speed advantage on an aspect of multi-task learning is provided, and by comparing with the two independent networks learning individually, the deep learning image identification system has advantages of less consumed time and high efficiency, and in addition, a convolutional layer repetitive operation problem is effectively prevented, and multi-task detection and multi-task identification are completed.
Owner:TSINGHUA UNIV +1

Mobile terminal prompt information regulating method and corresponding mobile terminal

The invention is applied to the technical field of communication, and in particular relates to a mobile terminal prompt information regulating method and a corresponding mobile terminal. The method comprises the following steps of: acquiring a sound decibel value in a current environment; and regulating prompt information to a grade corresponding to the sound decibel value in the current environment according to a mapping relationship between prestored sound decibel values which are set by the mobile terminal and prompt information grades. According to the method, prompt information is regulated by the cooperation of a sound sensor, a mapping relationship table between the sound decibel values and the prompt information grades and corresponding software, the sound decibel value in the current environment is acquired by the sound sensor, and the prompt information grade of the mobile terminal is set according to the sound decibel value and the mapping relationship between the prestored sound decibel values which are set by the mobile terminal and the prompt information grades; meanwhile, a vibration prompt is started when required; and user repeated operation is avoided and user experiences are improved by automatically regulating the prompt information grade.
Owner:NUBIA TECHNOLOGY CO LTD

Sky-wave beyond visual range radar adaptive space-time joint interference-resistant method

InactiveCN101907703ASmall amount of calculationDeepen the depth of interference suppressionWave based measurement systemsRadar systemsMain lobe
The invention discloses a sky-wave beyond visual range radar adaptive space-time joint interference-resistant method which inhibits interference by comprehensively utilizing two methods of adaptive beamforming and interpolation and compensation after a time domain is eliminated and achieves the purpose of making up for each other deficiencies through reasonable scheduling strategies. The transient interference entering a side lobe is resisted by utilizing the adaptive beamforming of a space domain, and the transient interference entering a main lobe is inhibited through the interpolation and the compensation after the time domain is eliminated, therefore compensating errors caused by time domain elimination and beam distortion caused by main lobe interference are prevented; and a diagonal loading amount which is in proportion to interference strength is formed for the non-transient interference entering the main lobe through interference space distribution information, therefore the strong main lobe interference is prevented from causing the serious distortion of the shapes of adaptive beams. The invention is established on the basis of a dimension-reducing beam space adaptive beamforming method, thereby greatly reducing the amount of signal processing calculations; and concrete steps are seen in an attached figure. The invention is not limited to a sky-wave beyond visual range radar system, can be widely applied to large-sized phased array radars of multiple types and has popularization and application value.
Owner:PLA AIR FORCE RADAR COLLEGE

Multi-purpose percutaneous puncture channel-building ostomy draining device

The invention provides a multi-purpose percutaneous puncturing, channel building, fistulization and drainage device which consists of a pin sheath tube, a pin core, a separable injector interface, a guide wire, multiple layers of passage expansion tubes, working sheath tubes and drainage tubes. The left end of the pin core is provided with a pin core handle; a circular groove is arranged in an internal hole of the pin core handle and is meshed with the left end of the separable injector interface and the left end of the pin sheath; the pin core is inserted in the pin sheath tube; the separable injector interface is arranged in close sliding match at the left end of the pin sheath tube and a convex ring is arranged at the right end of the pin sheath tube; the innermost layer of passage expansion tube is arranged outside the pin sheath and the left end of the tube is connected with the convex ring; the working sheath tubes are arranged outside of the outermost layer of passage expansion tube and the left end of the tube is provided with a handle; the inside diameters of the working sheath tubes are the same as the adjacent multiple layers of passage expansion tubes. Compared with the prior art, the invention can reduce operative complications, improve operative success rate, reduce the work intensity of medical staff and can be applied to minimally invasive operations for various diseases due to the good universality.
Owner:刘鸿玉

Solid state disk wear balancing method and device and computer readable storage medium

The invention discloses a solid state disk wear balancing method and device and a computer readable storage medium. The method comprises the following steps of: constructing a plurality of free blocklinked lists and dirty block linked lists of which priorities are distinguished according to erasure times of data blocks, and classifying the data blocks into corresponding lists according to the erasure times, block types and erasure time allowable ranges; if the free block chain table meeting the wear leveling condition exists, setting a reset label for the block corresponding to the data blockwith the lowest erasure frequency; if the block reset instruction of the host is not received within the specified time, taking the data block with the lowest erasure frequency in each dirty block linked list as a source data block, and taking the data block with the highest erasure frequency in each idle block linked list as a target data block to carry out data migration; and when a request forapplying for the data block is received, selecting the data block from the idle block linked list with the lowest erasure frequency. The abrasion balance of the solid state disk based on the ZNS protocol is realized, the abrasion balance of each data block in the solid state disk is favorably ensured, and the service life of the solid state disk is effectively prolonged.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Method for completing well by cementing top of expandable screen

InactiveCN103089194ALow costShorter completion cycleFluid removalSealing/packingWell cementingEngineering
The invention relates to the technical field of oilfield well completion, in particular to a method for completing a well by cementing the top of an expandable screen. The method comprises the following steps of: running a casing string comprising a casing tail pipe, a drilling plug-free system and the expandable screen into the well, performing cementing operation on the top of the expandable screen, and running an expansion diameter variation device to expand the expandable screen to cling to the wall of the well, wherein a packing rubber sleeve, an inner pipe device, a cementing hole and a blind plate are machined on the drilling plug-free system. Compared with the conventional screen, the expandable screen has the advantage that the external diameter of the expandable screen is increased after the expandable screen is expanded to enlarge an open area between formation fluid and a shaft and increase a fluid inlet volume, so that the fluid yield of a single well can be improved; and in addition, the high expandability of the expandable screen is used for forming a sand prevention screen system, gravels are not required to be filled into a horizontal well, and when a perforation tunnel or the well is blocked by formation sand to reduce the yield, the perforation tunnel is not required to be pre-filled, so that the repeated operation of sand prevention and well washing is eliminated.
Owner:CHINA PETROLEUM & CHEM CORP +1

Wind and rain disturbing signal real-time judgment method

The invention provides a wind and rain disturbing signal real-time judgment method. The method includes the steps that data are acquired in real time and stored in an internal data cache region; data are processed, a mean value of the cache region is calculated, and the data and the mean value of the internal data cache region are stored in a user cache region; mean value calculation is conducted, and a global mean value is acquired through calculation; the global mean value is compared with a global threshold value, if the global mean value is larger than the global threshold value, it is judged that signals are caused by wind and rain, and if the global mean value is smaller than or equal to the global threshold value, it is judged that signals are not caused by wind and rain. According to the method, the wind and rain signals are recognized through a method of comparing the mean value of data in a long cache pool and a set threshold value; in the process of calculating the mean value of the data in the long cache pool, a piecewise calculation and recording method is adopted, repetitive operation is avoided, and operand is reduced; the piecewise mean value calculation process is fused into the acquisition card acquisition process, operation time is not prolonged while acquisition is not affected, and signal processing time is shortened.
Owner:CHINA ELECTRONIS TECH INSTR CO LTD

Wheel position control method for boarding bridge butt-joint cabin door

The invention belongs to the technical field of automatic control, and particularly relates to a wheel position control method for a boarding bridge butt-joint cabin door. According to the method provided by the invention, under the condition that the bridgehead of the boarding bridge aligns to the fuselage of the aircraft, the position of an aircraft cabin door relative to the bridgehead in the horizontal direction and part of bridge body attributes of the boarding bridge, such as the bridge body length, the bridgehead angle and the length information from a wheel carrier to the bridgehead, are obtained by a sensing system; and the optimal control angle of the boarding bridge is calculated after the information is synthesized. According to the method, the optimal control angle of the wheel position can be accurately calculated, the efficiency of the butt joint process is improved, and the process of repeatedly operating the wheel position is avoided; the optimal control angle of the wheel position can be obtained only through one-time calculation, multiple times of calculation control can be carried out in the control butt joint process, so that the influence caused by measurementerrors is reduced, the cabin door butt joint precision is improved, and the optimal wheel position control angle calculated through the method can be in butt joint with the cabin door more accuratelythrough actual tests.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Soil real-time monitoring system based on intelligent agricultural planting

The invention discloses a soil real-time monitoring system based on intelligent agricultural planting. The system involves a lower supporting column, an upper supporting column and a control box, wherein a mounting disc is fixedly mounted outside the top of the lower supporting column, first adjusting rods are hinged to the interior of the mounting disc, second adjusting rods sleeve the bottoms of the first adjusting rods, a positioning device is fixedly mounted at the bottoms of the second adjusting rods, a movable disc is fixedly mounted on the side, away from an adjusting screw, of a limiting sliding block, an adjusting block is fixedly mounted at the top of the adjusting screw, a temperature sensor is fixedly mounted at one end of the bottom of a lifting plate, and a humidity sensor is fixedly mounted at the end, away from the temperature sensor, of the bottom of the lifting plate. Through the arrangement of the adjusting screw, the limiting sliding block, a strip-shaped limiting groove, a movable disc and a transmission rod, the positions of the plurality of first adjusting rods and the plurality of second adjusting rods are changed simultaneously, an operator is prevented from repeatedly operating the first adjusting rods and the second adjusting rods, the device is conveniently fixed by the operator, and use by the operator is facilitated.
Owner:山东钟金燕家纺有限公司 +3

Convenient-to-lock-and-fix drainage structure for municipal water supply and drainage

The invention discloses a convenient-to-lock-and-fix drainage structure for municipal water supply and drainage. The drainage structure comprises a wall body, a trench cover, an external grip and a partition plate, wherein the wall body is internally provided with a draining area, a water falling area and a water channel are arranged in sequence below the draining area, the trench cover is connected to the top end of the draining area, a gasket is attached to the outer side of the trench cover, clamping devices are mounted on the left and right sides of the trench cover, the top end of a rotating wheel is provided with a connecting plate, the bottom end of the rotating wheel is connected with a bottom plate, the outer side of a locking rod is provided with a rotating groove, the partitionplate is mounted between the draining area and the water falling area, and the outer side of a filter plate is provided with a lower flow chamber. The convenient-to-lock-and-fix drainage structure formunicipal water supply and drainage reduces the working intensity and reduces the cost, the service life is convenient to ensure, the trench cover is convenient to fix, the stable use of the trench cover is benefited, the drainage speed is convenient to ensure, impurities are convenient to clean, and the long-term use is facilitated.
Owner:李长洪

Self-adaptive elimination method of FMCW foreign matter detection radar leakage signal

The invention belongs to the field of frequency modulated continuous wave (FMCW) radar signal processing, and discloses a self-adaptive elimination method of an FMCW foreign matter detection radar leakage signal. The method comprises the following steps: (1) segmenting a continuous radar intermediate frequency digital signal into signal segments in a plurality of complete modulation periods; (2) performing phase-coherent accumulation on the signal segments in multiple periods; (3) performing digital filtering on the coherent signals; (4) performing FFT operation on the filtered signal, and calculating the length of a sliding window according to the spectrum peak frequency; (5) solving a sliding average value of the filtered signal to obtain a leakage signal, and temporarily storing the leakage signal; (6) resolving a beat signal according to the temporarily stored leakage signal to complete leakage elimination; (7) judging whether the mean value of the beat signals exceeds a thresholdvalue or not so as to determine whether to restart the process of resolving the leakage signals or not; and (8) using the beat signal for FOD detection through a window function. According to the invention, no additional hardware is needed, leakage signals can be adaptively eliminated in real time, and the radar can be supported to realize all-weather accurate foreign matter detection work.
Owner:DONGHUA UNIV

Method for extracting RNA (Ribonucleic Acid) of eremophyte Reaumuria songarica Maxim

The invention relates to a method for extracting RNA (Ribonucleic Acid) of eremophyte Reaumuria songarica Maxim. The method comprises the following steps of: scattering PVPP (Crosslinked Polyvinyl Pyrrolidone) to leaves of Reaumuria songarica Maxim, grinding, centrifuging an obtained solution, taking supernate, adding chloroform and isoamylol which are equal in volume, and centrifuging; taking supernate again, adding phenol, chloroform and isoamylol which are equal in volume, and centrifuging; taking supernate, adding chloroform and isoamylol which are equal in volume, and centrifuging again; taking supernate, adding precooled absolute ethyl alcohol and LiC1, mixing uniformly, and performing ice bath; centrifuging again, pouring supernate, adding precooled absolute alcohol and sodium acetate, uniformly mixing, placing in a refrigerator, and centrifuging; and abandoning supernate, rinsing twice with 75% ethyl alcohol, centrifuging, collecting precipitates, airing to obtain a pure RNA sample, and dissolving the RNA sample in DEPC (Diethylpyrocarbonate) water. According to the invention, by means of effectively removing polyphenol, polysaccharide, protein, ion substances and other secondary metabolite, the pure RNA sample is obtained; and in addition, the yield is high and less time is consumed. Compared with the prior art, the method disclosed by the invention is simple to operate, and RNA is not degraded by RNase (Ribonuclease) and is good in integrity.
Owner:COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE

Automatic working platform vertical-lifting device and control method thereof

The invention discloses an automatic working platform vertical-lifting device and a control method thereof. The automatic working platform vertical-lifting device comprises an interaction display unit, a controller, a boom state monitoring unit and an executing mechanism, wherein the interaction display unit is used for inputting ascending or descending distance parameters of a working platform and transmitting the distance parameters to the controller, and is capable of displaying boom states in real time; the boom state monitoring unit is used for monitoring length and angle information of a boom and transmitting the length and angle information to the controller; and the controller automatically starts ascending or descending action according to the distance parameters and controls the executing mechanism to drive a boom structure to complete the corresponding action through a hydraulic executing element. Amplitude errors and the amplitude error changing rate are calculated in real time, extensible valve current is obtained by inquiring a fuzzy control rule table, it is guaranteed that the amplitude change in the lifting process is as small as possible, and control precision is improved; and the boom is controlled to vertically ascend and descend through a method that an amplitude change valve current value is kept constant and an extensible valve current value is adjusted, the control quantity is reduced, and rescue work efficiency is improved.
Owner:XCMG FIRE FIGHTING SAFETY EQUIP CO LTD
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