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157results about How to "No adjustment required" patented technology

SAR (Synthetic Aperture Radar) image change detection method based on adaptive weight and high frequency threshold

The invention discloses an SAR (Synthetic Aperture Radar) image change detection method based on an adaptive weight and a high frequency threshold, which mainly solves problems that the detection effect is not ideal in the prior art and that a single-type difference chart is low in detection accuracy. The SAR image change detection method comprises the implementation steps of 1, reading in two SAR image I1, I2 which are acquired from the same area at different moments; 2, respectively calculating a mean ratio difference image Dm and a neighborhood log ratio difference image Dl of corresponding pixels of the image I1 and the image I2; 3, carrying out wavelet fusion on the mean ratio difference images Dm and the neighborhood log ratio difference images Dl to acquire fused difference images Xd; and 4, clustering the fused difference images Xd into two different categories so as to acquire a change detection result. The SAR image change detection method is simple to operate, good in noise resistance and high in detection accuracy, can acquire good effects for different types of SAR images, and can be applied to environment monitoring, marine observation, disaster evaluation, resource exploration, urban planning and geographical mapping.
Owner:XIDIAN UNIV

A method for preparing a nanometer porous nickel-iron-sulfur alloy having a high catalytic oxygen evolution property through electrodeposition in a eutectic type ionic liquid

The invention relates to a method for preparing a nanometer porous nickel-iron-sulfur alloy having a high catalytic oxygen evolution property through electrodeposition in a eutectic type ionic liquid, and belongs to the technical field of material preparation. The method includes fully mixing a quaternary ammonium salt with an alcohol or an amide to obtain the eutectic type ionic liquid, then adding a nickel salt precursor, an iron salt precursor and a sulfur salt precursor into the eutectic type ionic liquid, fully stirring and mixing the mixture to obtain an ionic liquid iron salt-nickel salt-sulfur salt composite electrolyte, subjecting a copper or nickel substrate that is adopted as a working electrode to repeated soaking with dilute hydrochloric acid and absolute ethanol, washing the working electrode with deionized water, then drying the working electrode, keeping the working electrode for later use, performing constant-potential electrodeposition by adopting a three-electrode system, washing the working electrode substrate after the electrodeposition with absolute ethanol and distilled water, and drying the working electrode substrate, and then a nanometer porous nickel-iron-sulfur alloy material film can be obtained on the surface of the working electrode substrate. A nickel-iron-sulfur alloy nanometer porous material having a high catalytic oxygen evolution property can be prepared by electrodeposition through the method.
Owner:KUNMING UNIV OF SCI & TECH

Electronic white board with multiple common-frequency pens

The invention discloses an electronic white board with multiple common-frequency pens. A main control card of the electronic white board identifies a plurality of electronic pens and an eraser by judging the serial numbers of the common-frequency electronic pens and the eraser at different times, each electronic pen and the eraser have respective fixed serial number and work at the same frequency, and when the pens are in use, the colors of the pens can be determined without additionally selecting shortcut keys. Time sharing operation is performed on the electronic pens and the eraser, and each piece of equipment only works within respective time and does not emit a signal at other time. The emitting frequency of the electronic pens is the same as that of the eraser, the working frequencies of the electronic pens and the eraser are generated through a single chip microcomputer clock, the main control card judges the work of the electronic pens and the eraser at different times, and the working periods of the electronic pens and the eraser are synchronized through a reference signal transmitted by the main control card, so that the coordination of the work of the electronic pens and the work of the eraser is guaranteed. By the adoption of the electronic white board with multiple common-frequency pens, the requirement that a user can use over two electronic pens at the same time to write in different colors at the same time can be met.
Owner:朱立波 +2

Optical fiber alkali metal vapor laser

The invention discloses an optical fiber alkali metal vapor laser which comprises a hollow-core photonic crystal fiber, a first single mode fiber, a second single mode fiber, a first Bragg grating etched on the first single mode fiber, a second Bragg grating etched on the second single mode fiber and a pump light source connected with the first single mode fiber. The hollow-core photonic crystal fiber is evenly filled with operation materials, pump light emitted by the pump light source acts on the operation materials through first single mode fiber in a coupling mode and generates stimulated seed lasers, the simulated seed lasers are oscillated and gained back and forth in a resonant cavity formed by the first Bragg grating and the second Bragg grating, and continuous lasers are output from the second single mode fiber. The optical fiber alkali metal vapor laser is low in collimation requirement on a light path, the integrated design of the resonant cavity and the operation materials is free from adjustment and maintenance and high in stability, the whole design is small in size, light in weight, good in compactedness, and beneficial for being moved, and the lasers output by a fiber end facer is beneficial for be in coupling with an external light path.
Owner:HUAZHONG UNIV OF SCI & TECH

Control method of ice maker

The invention provides a control method of an ice maker. The ice maker comprises an ice storage box, an ice feeding device which is positioned on the bottom of the ice storage box and can be controlled to rotate, and a detecting device for detecting a full-ice state of the ice storage box. The control method comprises the following steps of: after ice making operation and ice removing operation are sequentially completed in sequence every time, performing full-ice detection for detecting whether the ice storage box is in the full-ice state or not; when the ice storage box is judged to be not in the full-ice state through full-ice detection, performing ice making operation and ice removing operation; when the ice storage box is judged to be in the full-ice state through full-ice detection,driving the ice feeding device to rotate to perform full-ice correction, and recording full-ice correction times once after completing full-ice correction once; and after performing full-ice correction each time, performing correction detection for detecting whether the ice storage box is in the full-ice state or not. The detected results of the detected full-ice state are corrected, so that the problem that the ice storage box is not filled up completely as a result of out-of-level stacking of ice blocks and is mis-declared in the full-ice state is avoided.
Owner:QINGDAO HAIER REFRIGERATOR CO LTD +1

Transporting apparatus and transporting method for container-handling installation, and container-handling installation with such a transporting apparatus

The invention provides a transporting apparatus, a container-handling installation (19) with such a transporting apparatus, and a transporting method. The transporting apparatus (30) serves for transporting containers (2) in a container-handling installation (1), which has a first container-handling arrangement (10), for handing containers (2), and a second container-handling arrangement (20), which is arranged downstream of the first handling arrangement (10) and serves for handling the containers (2) once they have been handled by the first container-handling arrangement (10). The transporting apparatus comprises a transporting path (31), which has its entire length arranged between the first and second container-handling arrangement (10, 20) and along which the containers (2) can be transported from the first container-handling arrangement (10) to the second container-handling arrangement (20), and at least one transporting element (33), which is mounted in a movable manner on the transporting path (31) and is intended for retaining and transporting a container (2), wherein preferably the transporting path (31) and the at least one transporting element (33) are configured such that the at least one transporting element (33), en route between the first and second container-handling arrangements (10, 20), compensate for a difference in speeds of transportation of the containers (2) in the first and second container-handling arrangements (10, 20).
Owner:KRONES AG

Double-rocker self-adaptive centering clamp

InactiveCN103331713ARealize multi-point clampingLarge diameter rangeWork holdersHydraulic cylinderSelf adaptive
A double-rocker self-adaptive centering clamp is provided with a rack, wherein a driving hydraulic cylinder and a double-rocker mechanism are arranged on the rack, the top end of the driving hydraulic cylinder body and the rack are hinged into a whole, the end of a piston rod of the driving hydraulic cylinder, and one end of a driving rocker of the double-rocker mechanism are combined with a connecting rod in a hinged mode to form a whole. The other end of the driving rocker and the rack are hinged into a whole. The connecting rod is combined with a driven rocker in a hinged mode to form a whole. When used for machining or maintaining a tubular pile, the double-rocker self-adaptive centering clamp not only can clamp a workpiece to be clamped and make no displacement generated between the clamped workpiece and the clamp, but also can achieve multi-point clamping on a cylindrical workpiece and ensure that a rotating operating machine tool can operate concentric with the clamp all the time when making peripheral operation along a circular guide rail fixedly connected with the clamp concentrically, concentric operation can be performed on the cylindrical workpieces different in diameter, and the range of diameters for adapting to the tubular piles is widened. In the clamping process, self-adaptive centering is performed, adjusting and correcting are not needed, and the clamping operation can be performed conveniently, fast and efficiently.
Owner:CHINA NAT OFFSHORE OIL CORP +2

Potential ruler continuous material level measurement system and measurement method thereof

The invention discloses a potential ruler continuous material level measurement system free of adjustment, applicable to realtime measurement of material levels of various materials and high in measurement accuracy and a measurement method thereof. The potential ruler continuous material level measurement system comprises a conductive measurement rod (1) arranged in a metal container, wherein high-frequency voltages are applied to two ends of the measurement rod (1), a voltmeter (2) is connected between the bottom end of the measurement rod (1) and the metal container, and the periphery of the voltmeter (2) is electrically connected with a signal collecting module (3), a signal processing module (4), a central processing unit (CPU) (5), an analog-digital converter (6) and an analog quantity output module (7). When the materials make contact with the measurement rod (1), the signal collecting module (3) collects a voltage signal generated between the measurement rod (1) and the metal container, the voltage signal is subjected to calculation, voltage stabilizing and amplifying, and then the voltage signal is converted into a digital signal to be output by the analog quantity output module (7). The potential ruler continuous material level measurement system can be applied to the field of material level measurement.
Owner:珠海市长陆工业自动控制系统股份有限公司

Side bar positioning multidimensional integrated leakage resisting chain feeding machine for achieving feeding machine conveyer side bar positioning multidimensional integrated leakage resisting method

PendingCN108910409AAvoid hard twisting and breakingReduce running noiseConveyorsCleaningGear driveGear wheel
Disclosed is a side bar positioning multidimensional integrated leakage resisting chain feeding machine. The side bar positioning multidimensional integrated leakage resisting chain feeding machine comprises a machine frame and a side bar positioning multidimensional integrated leakage resisting chain conveying device, wherein the machine frame supports the side bar positioning multidimensional integrated leakage resisting chain conveying device to convey materials; the side bar positioning multidimensional integrated leakage resisting chain conveying device comprises a chain fastening multidimensional integrated leakage resisting side positioning belt, side positioning bars, a side positioning bar fastening circular chain, chain locking units, a chain gear driving unit and a chain gear redirecting unit, wherein the side positioning bars extend out of the end portions of the chain fastening multidimensional integrated leakage resisting side positioning belt, and the chain locking unitslocks the end portions of the side positioning bars onto the side positioning bar fastening circular chain to form a side bar positioning multidimensional integrated leakage resisting chain. The sidebar positioning multidimensional integrated leakage resisting chain feeding machine has the advantages of being free from slipping when started under head load, free from leakage via integrated material collecting, less prone to deviation through multidimensional positioning, capable of avoiding slipping through chain wheel start, free from noise and wear-resistant through a flexible chain, capable of avoiding material return via multidimensional integrated leakage resisting, and good in coordination between a flexible belt and a rigid chain to save adjustment and maintenance.
Owner:刘素华

Building horizontal outer sun shield plate automatic control device having ventilation function and control method therefor

The invention discloses a building horizontal outer sun shield plate automatic control device having a ventilation function and a control method therefor. The building horizontal outer sun shield plate automatic control device comprises a sensor assembly, an A/D converter, a PLC controller, a PLC controller, a sun shield plate and a ventilation sheet; the sensor assembly is used for collecting corresponding signals in real time, analog signals are converted into digital signals via the A/D converter, the digital signals are transmitted to the PLC controller, the PLC controller is used for performing logic signal processing operation according to the received real-time sensor signals, and therefore angle change control over the sun shield plate and the ventilation sheet can be finally realized. According to the building horizontal outer sun shield plate automatic control device having the ventilation function and the control method therefor, automatic control is realized via application of the PLC to a sun shield plate device, a ventilation opening and the ventilation sheet are mounted on the sun shield plate in the sun shield plate device, a sun shielding function and the ventilation function can be fulfilled, and balance between sun shielding and ventilation is attained.
Owner:YANCHENG INST OF TECH

Novel single-frequency pulse blue laser light source based on 978nm single-frequency pulse fiber laser

InactiveCN103545702ALong life and high efficiencyLow costActive medium shape and constructionErbium lasersWaveplate
The invention discloses a novel single-frequency pulse blue laser light source based on 978nm single-frequency pulse fiber laser. The novel single-frequency pulse blue laser light source is characterized by comprising a linear-polarization single-frequency Q-switching pulse-type 978nm all-fiber laser device, a collimator, a wave plate, a focusing lens, a nonlinear crystal and a dichroic mirror; a signal end of the linear-polarization single-frequency Q-switching pulse-type 978nm all-fiber laser device is connected with the collimator; the 978nm single-frequency pulse laser is collimated and outputted to be connected with the wave plate; the other end of the wave plate is connected with the focusing lens; the 978nm linearly-polarized single-frequency pulse laser is focused through the focusing lens and then is subjected to frequency doubling through the nonlinear crystal, then the remaining 978nm laser is filtered via the dichroic mirror, and single-frequency pulse-type blue laser is outputted. The novel single-frequency pulse blue laser light source has a significant application value in the aspects of high-density optical storage, biological and medical diagnosis, laser color display, underwater detection, underwater communication, remote sensing and the like.
Owner:HFB PHOTONICS CO LTD

Method and device for dynamic and intelligent control of foamed concrete component proportional mixing

The invention relates to a method and a device for dynamic and intelligent control of foamed concrete component proportional mixing. A water flow sensor, a slurry flow sensor and an agent flow sensor are connected with a signal acquisition plate, and the signal acquisition plate is connected with a single-chip microcomputer controller; the single-chip microcomputer controller is also connected with a float detection switch for detecting liquid flow, an agent pump controller connected with an agent pump, a control button, a water inlet solenoid valve, and three frequency converters; the water inlet solenoid valve is connected with a water level upper limit float detection switch F5 in the float detection switch; the frequency converter is connected with a variable-frequency AC motor and a contactor, the other end of the contactor is connected with an air switch, and the other end of the air switch is connected with a three-phase power supply terminal; coils of a contactor KM1, a contactor KM2, a contactor KM3 and a contactor KM4 are connected with the single-chip microcomputer controller. According to the invention, the mixing proportions of various components of the slurry are stable, and do not change with the amount of the feed materials; the labor intensity of operators is reduced; the waste of dry materials, water, and agents is reduced; and the work efficiency is improved.
Owner:LIAONING JIJIA ENERGY SAVING WALL EQUIP

Gas detection method and device based on dispersion spectral analysis and artificial intelligence

The invention discloses a gas detection method and device based on dispersion spectral analysis and artificial intelligence. The device comprises a light source, a first condensing lens, a detection gas chamber, a second condensing lens, a dispersion element, a light-sensitive element and a micro-control unit, the detection gas chamber is used for sealing a to-be-detected gas, the light source isused for emitting a light absorbed and refracted by characteristics of the to-be-detected gas, the first condensing lens is used for straightening the light emitted by the light source, the second condensing lens is used for straightening the light penetrating through the detection gas chamber, the dispersion element is used for performing dispersion on the light through the detection gas chamber,the light-sensitive element is used for converting optical signals to image signals, and the micro-control unit is used for receiving the image signals of the light-sensitive element, performing comprehensive calculation on the image signals, and obtaining a concentration result of the to-be-detected gas. According to the method and device, various gases can be simultaneously detected, the stability is high, the measuring precision is high, the response time is fast, the influences of vapor, dust, air pressure and temperature are fully considered, adjustment and correction are avoided, the structure is simple, the cost is low, the power consumption is low, and the miniaturization is easily realized.
Owner:成都太阳神鸟智能控制有限公司
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