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48results about How to "Avoid covering up" patented technology

Display screen display defect detecting method, device and equipment

InactiveCN105259181ASolve the problem that the detection speed is reduced and the detection efficiency is affectedAvoiding False Detection SituationsImage enhancementImage analysisDiffuse reflectionComputer vision
The invention discloses a display screen display defect detecting method, device and equipment, and belongs to the technical field of display. The method includes the steps that suspected defective pixels are recognized in a first image on the front face of a detected display screen, and the first image is obtained by shooting the detected display screen in a pure color display state; external dirty pixels are recognized in a second image on the front face of the detected display screen, and the second image is obtained by shooting the detected display screen which is in an extinguished state and irradiated on the front face by a diffuse reflection light source; for all the recognized suspected defective pixels in the first image, whether the external dirty pixels exist in the same positions of the second image or not is detected, and if not, the suspected defective pixels are determined as display defective pixels. The problem that in the prior art, a special dirt removal link is added to reduce the mistaken detection probability, and detection efficiency is affected is solved. The real display defects and external dirt are automatically distinguished, mistaken detection caused by the dirt can be avoided, and the detection efficiency is substantially improved.
Owner:HUAWEI TECH CO LTD

Continuous nondestructive testing device for cable-in-conduit conductor local defects

The invention discloses a continuous nondestructive testing device for cable-in-conduit conductor local defects. The continuous nondestructive testing device for the cable-in-conduit conductor local defects is characterized in that a magnetic field detector is a square Hall sensor array formed by front row, back row, upper row and lower row of Hall sensors; a cable-in-conduit conductor sequentially penetrates through a detection inlet at one end of a Dewar, the center of an excitation coil and the center of the square Hall sensor array and penetrates out of a detection outlet at the other endof the Dewar; and the detection inlet side of the cable-in-conduit conductor is connected with a pushing mechanism of the cable-in-conduit conductor. By adopting the continuous nondestructive testingdevice, the local defects of the cable-in-conduit conductor can be continuously and nondestructively detected, and thus reliable experiment data is provided for formulation of a stranded cable and extrusion formation technology of a superconductor cable; and online real-time nondestructive detection can also be performed on the local defects in the preparation process of the cable-in-conduit conductor, so that the performance and the reliability of the cable-in-conduit conductor are improved, and the service life of the cable-in-conduit conductor is prolonged.
Owner:SOUTHWEST JIAOTONG UNIV

Continuous nondestructive testing device for local defects of superconducting cable

The invention discloses a continuous nondestructive testing device for local defects of a superconducting cable. The continuous nondestructive testing device is characterized in that a pay-off wheel and a take-up wheel are respectively arranged above the left and right sides of a Dewar, the shaft of the pay-off wheel is connected with a damper, and the shaft of the take-up wheel is connected witha stepping motor; the Dewar is internally provided with a guide wheel, excitation coils, a magnetic field detector and a guide wheel 2 from left to right; the magnetic field detector is a square Hallsensor array consisting of four rows, i.e., a front row, a rear row, an upper row and a lower row, of Hall sensors; after a superconducting cable on the pay-off wheel extends out, the superconductingcable bypasses the guide wheel I, then successively passes through the centers of the excitation coils and the magnetic field detectors, then bypasses the guide wheel 2, and is finally wound around the take-up wheel. The continuous nondestructive testing device can realize continuous nondestructive detection of the local defects of the superconducting cable, so reliable test data is provided for the formulation of a cable stranding process for the superconducting cable and the use and maintenance of the superconducting cable; and thus, the performance and reliability of a superconducting magnet are guaranteed.
Owner:SOUTHWEST JIAOTONG UNIV

Building viewing water curtain

The invention discloses a building viewing water curtain. The building viewing water curtain comprises a water storage tank and an electric control box, wherein the water storage tank and the electriccontrol box are mounted on the ground. A curtain wall is vertically mounted in the water storage tank, a wall eave is mounted at the upper end of the curtain wall, a water storage box is mounted at the upper end of the left side of the curtain wall, a water pump is mounted on the ground on the left side of the curtain wall, a water conveying pipe is mounted between the water pump and the water storage box, a water pumping pipe is mounted on the water pump, the water pumping pipe stretches into the water storage tank, and multiple short pipes and multiple long pipes are mounted at the upper ends of the left side and the right side of the curtain wall in an attached manner correspondingly. Siphoning is formed in the water storage box through the long pipes, the short pipes and round grooves, siphoning water currents drive impellers and rotary shafts to rotate for power generation, siphoning power generation is used for projection equipment, an electromagnetic valve and a water level sensor, the power consumption of water curtain viewing is reduced, due to the siphoning phenomenon, the water pump only needs to pump the water currents into the water storage box, the power consumptionof the water pump is reduced, and the power consumption of water curtain viewing is further reduced.
Owner:王慧娟

A water curtain for architectural viewing

The invention discloses a building viewing water curtain, which includes a water storage tank installed on the ground and a power control box. A curtain wall is vertically installed in the water storage tank, and a wall eaves are installed on the upper end of the curtain wall. A water storage tank is installed at the upper end of the left side, and a water pump is installed on the ground on the left side of the curtain wall. A water delivery pipe is installed between the water pump and the water storage tank. In the groove, a plurality of short tubes and a plurality of long tubes are installed against the upper ends of the left side and the right side of the curtain wall respectively. The invention forms a siphon in the water storage tank through long pipes, short pipes and circular grooves, drives the impeller and the rotating shaft to generate power through the siphon water flow, and uses the siphon power generation for projection equipment, solenoid valves and water level sensors, reducing the appearance of the water curtain. The power consumption of the movie, and due to the siphon phenomenon, the water pump only needs to pump the water into the water storage tank, which reduces the power consumption of the water pump and further reduces the power consumption of the water screen viewing.
Owner:王慧娟
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