42results about How to "Short correction time" patented technology

A contact lens is fitted to a cornea of a patient's eye to gradually alter the patient's cornea during continued wear to reshape the cornea to reduce the hyperopia and / or presbyopia condition. The contact lens has a plurality of zones that includes one or two optical zones, a plateau zone, a fitting zone, an alignment zone and a peripheral zone. The one or more optical zones are utilized to redistribute cornea tissue to cause the cornea to have a steepened central portion surrounded by a flat mid-peripheral ring The plateau zone helps steepening the central cornea by two ways: a positive molding effect of pushing the cornea tissue inward to pile up and a negative molding effect to flatten the mid-peripheral cornea for enhancing.

A contact lens is fitted to a cornea of a patient's eye to gradually alter the patient's cornea during continued wear to reshape the cornea to reduce the hyperopia and / or presbyopia condition. The contact lens has a plurality of zones that includes one or two optical zones, a plateau zone, a fitting zone, an alignment zone and a peripheral zone. The one or more optical zones are utilized to redistribute cornea tissue to cause the cornea to have a steepened central portion surrounded by a flat mid-peripheral ring The plateau zone helps steepening the central cornea by two ways: a positive molding effect of pushing the cornea tissue inward to pile up and a negative molding effect to flatten the mid-peripheral cornea for enhancing.

The invention relates to a correction method for a pile foundation building after tilted. The correction method comprises the following construction steps that: six observation points are arranged on a roof floor of the building; inclination values of various points are measured and the maximum inclination value is taken; the settling amount of the building in the inclined direction and the settling amount of the building opposite to the inclination direction are calculated; the hole pitch of core drawing holes and the number of the core drawing holes arranged are calculated; the settling amount of each core drawing hole provided during the correction process is calculated; a first batch of the core drawing holes are arranged and silt in the holes is drawn out, and then the building is settled opposite to the inclination direction; the sedimentation values of the six points are measured after 24 hours, and the daily average sedimentation speeds of three pairs of the observation points are calculated and are all less than or equal to 10 millimeters per day; a second batch of the core drawing holes, a third batch of the core drawing holes and a fourth batch of the core drawing holes are arranged and measured according to the same method as the first batch; when the slope gradient of a point with the maximum inclination value among the six observation points is less than or equal to 0.3 percent of the safety standard and is still less than the safety standard after 90 days, the correction operation is over. The method is easy to implement and has high precision and low cost.

The invention discloses an inertial positioning method and an inertial positioning system using vision-aided corrosion. The inertial positioning system comprises an inertial sensor, a positioning identifier, an image pickup module, an image processing unit and a correcting unit, wherein the positioning identifier is used for identifying a positioning point; the image pickup module is used for obtaining image information of the positioning identifier. The image processing unit is used for calculating space position information according to the image information generated by the image pickup module and transmitting the space position information to the correcting unit; the correcting unit is used for carrying out correction on sensed data of the inertial sensor according to the space position information. The inertial positioning method comprises the steps of arranging the image pickup module and the positioning identifier which are separate, wherein the image pickup module is arranged at the correcting end and the positioning identifier is arranged at the inertial sensor end; or the positioning identifier is arranged at the correcting end and the image pickup module is arranged at the inertial sensor end; picking up the positioning identifier by utilizing the image pickup module, and calculating according to the pickup result to obtain the correction data; correcting the sensed data of the inertial sensor by utilizing the correction data. The inertial positioning method has the advantages of being short in correction time, accurate in correction, less in power consumption and the like.

A mask pattern correction method includes the step of extracting a correction target edge from a design pattern, the step of calculating the distance from the correction target edge to the nearest edge of an adjacent pattern, the step of calculating the correction value by a simulation in accordance with a pattern layout present within a given range determined by the correction target edge, and moving the correction target edge on the basis of the calculated correction value when the distance calculated in the distance calculation step is smaller than a predetermined distance, and the step of moving the correction target edge on the basis of an correction value set as a rule in advance in accordance with the distance when the distance calculated in the distance calculation step is larger than the predetermined distance.

The invention relates to an integrated correcting system and correcting method applied to different active array antennas. The integrated correcting system includes an active array antenna, a high-precision measurement real-time compensation unit, a testing probe, an industrial personal computer, a vector network analysis meter, a RF cable, and a low frequency cable. According to the invention, the integrated correcting system is advantaged by high correcting precision, short correcting time, simplicity and easiness of implementation, strong universality and excellent industrial reliability.

The invention relates to a gamma curve correction method, which comprises the following steps: selecting at least two different gray scales as characteristic gray scales in the whole gray scale rangeof a color image of a display panel. The sub-pixel information of the feature gray scale is measured to obtain the red sub-pixel information, the green sub-pixel information and the blue sub-pixel information of the feature gray scale. Then, the red sub-pixel information, green sub-pixel information and blue sub-pixel information of other gray scales except the characteristic gray scale are calculated by interpolation method. Combined with the formula of look-up table, the corresponding look-up tables of red sub-pixel, green sub-pixel and blue sub-pixel of each gray scale are obtained by recursive method. Storing a respective look-up table into a memory corresponding to the gamma curve to obtain a corrected gamma curve; Test the calibrated gamma curve and compare it with the target gamma curve. If it meets the requirements of the product specification, the calibration process is finished. The calibration method shortens the calibration time, improves the production efficiency and product pass rate of the panel, and the calibration result is accurate.

The method comprises: 1) generating high capacity of digital watermarking signals 2) pre-processing the original image to be embedded with the watermark; 3) embedding watermark information; 4) processing the watermark image before extracting the watermark; 5) extracting the watermark; 6) enhancing the image watermark information. The invention features the following: 1) embedding binary image high capacity information that enhances the identifiability of watermark information; 2) having strong robustness of anti-print and anti-scanning that can be used in anti-fake of all certificates and prints; using Hausdorff-based distance geometric correction process, which can effectively correct all geometric attack to watermark signal in the print and scanning process such as rotation, scaling and translation.

The invention provides a module for correcting sampling time error between time interleaving ADC channels, which comprises a reference channel unit, an error detecting unit and a delay line unit. A corresponding correction method is provided, and the correction method is executed in parallel between M single channels of the error detecting unit. According to the correction module and the correction method in the invention, the detection and calibration of the sampling time error of a time interleaving ADC of any channel number can be completed with moderate hardware cost and low hardware complexity; the calibration precision is high; and higher calibration precision and shorter correction time can be achieved for a high frequency analog signal. The algorithm principle of the correction method is simple and easy to implement, thereby reducing the complexity and hardware consumption of the circuit design.

The invention relates to a portable uniform correcting device for PET equipment and a correcting method of the portable uniform correcting device. The portable uniform correcting device comprises a PET machine frame and a scanning bed; a scanning hole is formed in the PET machine frame; a detector is arranged in the PET machine frame; the detector has a circular scanning view; the portable uniform correcting device is arranged on the top surface, close to the PET machine frame, of the scanning bed; the portable uniform correcting device comprises a rotating shaft, a rotating arm and a radiating source rod; the rotating shaft can drive the radiating source rod to rotate by 360 degrees at the constant speed through the rotating arm; the radiating source rod is arranged on the lateral side of the rotating arm; the radiating source rod extends into the scanning hole of the PET machine frame and can rotate along the hole wall of the scanning hole; the axis of the rotating shaft coincides with the axis of a round ring of a scanning view hole; and the axis of the radiating source rod is parallel to the axis of the rotating shaft. The portable uniform correcting device is simple in structure, convenient to carry and install, easy to operate, high in accuracy, short in correcting time and wide in application scale.

The invention relates to a guide pinch straight head roller device, in particular to an auxiliary device in the front of a broadband narrow-trip wrap-up machine used on a broadband slitting line. The device is characterized in that a material guide plate assembly is hinged with a guide roller shaft and the material guide plate can rotate around the guide roller shaft under the action of a hydrocylinder. A guide roller is connected to a machine seat through a guide roller bearing and a bearing seat. Both ends of a pinch straight head roller are provided with a pinch roller bearing and the bearing seat respectively, and one end of the pinch straight head roller is provided with a hydraulic motor. The pinch roller bearings and the bearing seats can slide in a left frame and a right frame, and synchronous connecting rods are arranged on the two pinch roller bearings and the bearing seats. A pinch roller swinging cylinder is arranged on the frames, and a piston rod is connected with the pinch roller bearings and the bearing seats. A pinch roller pressing cylinder is arranged on the frames and the piston rod is hinged with the pinch roller bearings and the bearing seats. The device has the advantages of high response speed, short correction time and high sensitivity, and can greatly reduce manual auxiliary working time and improve the wrap-up quality of broadband materials.

Belonging to the field of electric power technology, the invention specifically relates to a wireless transmission anti-missort tester and a working method thereof. The wireless transmission anti-missort tester includes a transmission device and a receiver, the transmission device is equipped with a power supply module, an ultra narrow band frequency selection module, a transmission channel and aground wire terminal. The ultra narrow band frequency selection module and the transmission channel are in parallel connection, the ground wire terminal is connected to the ultra narrow band frequencyselection module, and the output end of the ultra narrow band frequency selection module is connected to the input end of an amplification circuit. The tester provided by the invention can carry outdetection positioning without enter a household, and omits tedious access procedure. The tester has the advantages that: the time for correction detection of a user meter is short, the work efficiencyis improved, unified inspection is carried out on a plurality of electric meters in one meter box, and the operation is simple and convenient.

The invention relates to an automatic compensation method for voltage change of an electric energy meter. Power-on initialization is performed to obtain an initialized power error calibration gain value and an initialized power offset calibration gain value; a rated voltage Un, the current lambdaIb and a power factor 1.0 are outputted by a programmable power source to a calibrated meter; the apparent power is automatically calculated by an MCU of the calibrated meter through obtaining the active power and the reactive power of the calibrated meter; a power error of the calibrated meter and a power error calibration gain value are calculated; a power offset calibration gain value is calculated; when errors between the active power and the standard active power and the reactive power and thestandard reactive power after calibration are within the permissible range, current and power factors are kept unchanged, output voltages of a programmed power source for the calibrated meter are sequentially changed, and different output voltages are utilized for meter calibration. The method is advantaged in that only the power error is calibrated, the method is suitable for metering small currents of the electric energy meter, metering accuracy of the electric energy meter is high, and meter calibration efficiency is improved.

The invention discloses a portable infrared remote control pulse signal generator and a pulse correction method. The portable infrared remote control pulse signal generator comprises a remote control module, a main control chip, a power module, a pulse output module and a display module, wherein the remote control module comprises a remote control for transmitting control signals and a remote control receiving head for receiving the control signals; the main control chip controls generation of circuit pulse and measures the pulse width according to the control signals received by the remote control receiving head; the power module is used for providing work voltage for the main control chip; the pulse output module is used for outputting pulse signals generated by the main control chip; the display module is used for displaying the amplitude value of the pulse signals output by the pulse output module, the pulse width and the pulse duration. The portable infrared remote control pulse signal generator is compact in size, easy and convenient to operate, low in cost, high in interference resistance and stable and reliable in wok.

The invention provides a glue dispensing device. The glue dispensing device comprises a glue dispensing mechanism and a correction mechanism. The glue dispensing mechanism is used for forming a firstglue path. The correction mechanism is coupled to the glue dispensing mechanism and comprises a detection unit. The detection unit is used for detecting the glue width of the first glue path and detecting the distance difference between the first glue path and a reference line set. The glue dispensing mechanism forms a second glue path according to the glue width and the distance difference. The invention further provides a glue dispensing method of the glue dispensing device.

The method comprises: 1) generating high capacity of digital watermarking signals 2) pre-processing the original image to be embedded with the watermark; 3) embedding watermark information; 4) processing the watermark image before extracting the watermark; 5) extracting the watermark; 6) enhancing the image watermark information. The invention features the following: 1) embedding binary image high capacity information that enhances the identifiability of watermark information; 2) having strong robustness of anti-print and anti-scanning that can be used in anti-fake of all certificates and prints; using Hausdorff-based distance geometric correction process, which can effectively correct all geometric attack to watermark signal in the print and scanning process such as rotation, scaling and translation.

The invention discloses an inertial positioning method and an inertial positioning system using vision-aided corrosion. The inertial positioning system comprises an inertial sensor, a positioning identifier, an image pickup module, an image processing unit and a correcting unit, wherein the positioning identifier is used for identifying a positioning point; the image pickup module is used for obtaining image information of the positioning identifier. The image processing unit is used for calculating space position information according to the image information generated by the image pickup module and transmitting the space position information to the correcting unit; the correcting unit is used for carrying out correction on sensed data of the inertial sensor according to the space position information. The inertial positioning method comprises the steps of arranging the image pickup module and the positioning identifier which are separate, wherein the image pickup module is arranged at the correcting end and the positioning identifier is arranged at the inertial sensor end; or the positioning identifier is arranged at the correcting end and the image pickup module is arranged at the inertial sensor end; picking up the positioning identifier by utilizing the image pickup module, and calculating according to the pickup result to obtain the correction data; correcting the sensed data of the inertial sensor by utilizing the correction data. The inertial positioning method has the advantages of being short in correction time, accurate in correction, less in power consumption and the like.

The invention discloses an automatic aperture correction method. A value for keeping an automatic aperture stable is a numerical value in a certain range. The method comprises the following steps: finding out an approximate upper limit value and a lower limit value in the range; obtaining a proper value for serving as a value in the stable state of the aperture in order to allow the automatic aperture to work normally. Meanwhile, the numerical value is obtained through accumulation of times and time, thereby shortening the correction time, and increasing the correction accuracy. The algorithm is suitable for most commercially-available lenses comprising automatic apertures; moreover, the method is easy and convenient to use, the correction time is short, and the correction result is high in reliability. Meanwhile, the effect in a regulating process is remarkable, and hardware problems such as failure in closing the apertures existing in certain lenses can be found.

The invention relates to an equal scaling optical correcting method for an inclined picture image, belonging to the fields of aviation, aviation image measurement, aviation reconnaissance and the like. The invention aims at providing an equal scaling optical correcting method for a large inclined picture image, which can be used for outputting and correcting an image synchronously and performing equal scaling (camera focus / flight height) and unequal scaling correction. When an aerial camera is inclined to take a picture, if a target on the ground vertical to a paper cover is imaged in the camera, the image length of a perigee is larger than that of an apogee; an imaging film is placed in a way that the film is arranged with an angle with the vertical surface of an imaging main optical shaft, and a correcting lens is arranged between the film and the imaging paper. The equal scaling optical correcting method for the inclined picture image has the advantages of convenience in operation, short correcting time, no factitious deformation and the like.

By attaching the laundry to the unbalanced side in the low-speed rotation region of the spin-drying process, it is possible to shorten the correction time of the imbalance when large-sized clothes such as a carpet and a felt having different combinations are combined, and to provide a drum type washing machine and a drum type washing and drying machine that suppress the increase in the dehydrationtime and the amount of power consumption. The drum type washing machine comprises: a rotatable drum which is horizontally inclined or inclined in a manner that the depth side is downward; an outer tub which encloses the drum and is used for storing washing water; a casing which encloses the outer tub; a judging means and an imbalance determining means which judge the attaching state of the laundry in the rotatable drum ad the imbalance determination of the laundry in the first dehydrating operation. The first dehydrating operation is performed when the imbalance is greater than the thresholdof the imbalance determining means during the determination of the attachment state of the laundry. The rotation control of the dehydration operation after the second dehydration is started again, andthe rotation control of the second and subsequent dehydration operations is different from the dehydration operation.

The invention discloses a device for correcting curvature radius of a roller table at a bending segment of a continuous casting machine. The device comprises a roller spacing measuring device and a data processing device, wherein the roller spacing measuring device comprises a support, a fixed scale fixed on the support, a movable scale movably arranged on the support, a laser measuring head arranged on the movable scale and an operational processor, the laser measuring head acquires measured data from the fixed scale and the movable scale and transmits the data to the operational processor, and the operational processor calculates the spacing between the roller tables at the neighboring bending segments according to the measured data; and the data processing device calculates a corrected value of the curvature radius of the roller table at the segment according to the spacing between the roller tables at the neighboring bending segments which is detected by the roller spacing measuring device. By utilizing the device and the method for correcting the curvature radius of the roller table at the bending segment of the continuous casting machine, the curvature radius of the roller table at the bending segment of the continuous casting machine can be automatically corrected with high accuracy, short correction time and high efficiency so as to effectively improve the production efficiency of the continuous casting machine and produce considerable economic benefit.

The invention discloses a local deformation correcting method for a titanium alloy component, and belongs to the technical field of titanium alloy deformation correcting. Thermal deformation correcting is conducted on the titanium alloy component through an electromagnetic induction heating technology, and the method comprises the steps of component deformation correcting area positioning, fixingof the component in a deformation correcting mold, deformation correcting area fixing, deformation correcting and annealing treatment. The method is simple and convenient to operate, can be used for carrying out deformation correcting on a large-sized, thin-walled or curved titanium alloy component, and has dual functions of carrying out internal pressing and external expansion deformation correcting on the titanium alloy component. The component deformation correcting temperature is low, deformation correcting can be carried out in the atmosphere, protective atmosphere is not needed, and theproblem that the titanium alloy component vacuum high-temperature deformation correcting efficiency is low can be effectively solved.

The invention discloses a hole grinding fixture, which comprises an expansion core and a Mohs hardness handle, wherein the expansion core is a taper expansion core, the expansion core is sheathed on one end of a grinder spindle, the Mohs hardness handle is matched with an inner taper hole of the grinder spindle, and a backstop pin is arranged between the expansion core and the Mohs hardness handle. The hole grinding fixture, provided by the invention, has the advantages of being short in correction time, saving a large amount of correction time, being sable in quality, high in production efficiency, firm in the fixture, protecting precision of the grinder and saving the fixture.

The invention discloses a leveling plate shearing device, and particularly relates to the technical field of plate shearing machines. The leveling plate shearing device comprises a mounting block, a workbench is fixedly mounted on the surface of the top end of the mounting block, a working plate is detachably mounted on the surface of the workbench, and a connecting block is fixedly mounted at the bottom end of the interior of the working plate; and a leveling device is fixedly mounted on the surface of the top end of the connecting block, and a mounting plate is detachably mounted at one side of the interior of the working plate. Through mutual cooperation of a first sleeve rod, a reset spring and a second sleeve rod, the effect of short correction time is achieved, the problems that when an existing leveling plate shearing device works, due to the fact that the device is complex to install, correction can be conducted only by disassembling the device once the device needs to be corrected, the time is increased, the working efficiency is reduced, the correction time is long, and the development of the device is influenced are solved, and the practicability of the device is enhanced.

The invention discloses an equal-scale optical rectification method for a panoramic optical image, which belongs to the fields of measurement of aviation and spaceflight images and aims at providing the equal-scale optical rectification method for the panoramic optical image by adopting pure optical rectification to directly rectify while the image is output. The equal-scale optical rectification method comprises the following rectification process that panoramic negative pieces enclose to form a circular arc shape, wherein the circle center surface of the circular arc faces to a rectification lens, and the circle center is positioned on a primary optical axis; photographic paper is in a hyperbolic curve shape; the scale of each point on the image formed on the photographic paper is identical and is the ratio the focus length to the height of the camera; an imaging light source can use a planar light source; the photographic paper is simultaneously exposed; the rectification is carried out by using different optical axial magnification powers; and the full piece is rectified into an image with the same scale as that of the optical axis. According to the equal-scale optical rectification method disclosed by the invention, the film type panoramic image is purely and optically rectified at equal scale (focus length of the camera / flying height) and a vertical image is formed after rectification. The equal-scale optical rectification method is mainly used for rectifying the negative piece image formed by a panorama camera.

The invention relates to a partial shape correction method for titanium alloy components, which belongs to the technical field of titanium alloy shape correction. The invention adopts the electromagnetic induction heating technology to carry out thermal deformation correction to the titanium alloy component, which includes the positioning of the component correction area, the fixing of the component in the correction mold, the fixation of the correction region, the correction and annealing treatment. The method is easy to operate, can correct the shape of large, thin-walled or curved titanium alloy components, and has dual functions of internal pressure and external expansion of the titanium alloy components. The temperature of component shape correction is low, and it can be carried out in the atmosphere without protective atmosphere, which can effectively solve the problem of low efficiency of vacuum high temperature shape correction of titanium alloy components.

The invention discloses a device for correcting curvature radius of a roller table at a bending segment of a continuous casting machine. The device comprises a roller spacing measuring device and a data processing device, wherein the roller spacing measuring device comprises a support, a fixed scale fixed on the support, a movable scale movably arranged on the support, a laser measuring head arranged on the movable scale and an operational processor, the laser measuring head acquires measured data from the fixed scale and the movable scale and transmits the data to the operational processor, and the operational processor calculates the spacing between the roller tables at the neighboring bending segments according to the measured data; and the data processing device calculates a corrected value of the curvature radius of the roller table at the segment according to the spacing between the roller tables at the neighboring bending segments which is detected by the roller spacing measuring device. By utilizing the device and the method for correcting the curvature radius of the roller table at the bending segment of the continuous casting machine, the curvature radius of the roller table at the bending segment of the continuous casting machine can be automatically corrected with high accuracy, short correction time and high efficiency so as to effectively improve the production efficiency of the continuous casting machine and produce considerable economic benefit.

The invention relates to an automatic compensation method for voltage change of an electric energy meter, which is initialized after power-on to obtain an initialized power error correction gain value and an initialized power offset correction gain value; a programmed power source outputs rated voltage Un and current λIb to the meter to be calibrated , power factor 1.0; the MCU to be calibrated automatically calculates the apparent power by obtaining the active power and reactive power of the calibrated meter; calculates the power error and power error correction gain value of the calibrated meter; calculates the power offset correction gain value; when the errors between the corrected active power, standard active power and reactive power, and standard reactive power are all within the allowable range, keep the current and power factor unchanged, and change the programmed power source to the Calibrate the output voltage of the meter, use different output voltages to calibrate the meter. It only needs to correct the power error, and it is suitable for the measurement of the electric energy meter when the current is small. The electric energy meter has high measurement accuracy and improves the meter calibration efficiency.

The invention relates to an integrated correcting system and correcting method applied to different active array antennas. The integrated correcting system includes an active array antenna, a high-precision measurement real-time compensation unit, a testing probe, an industrial personal computer, a vector network analysis meter, a RF cable, and a low frequency cable. According to the invention, the integrated correcting system is advantaged by high correcting precision, short correcting time, simplicity and easiness of implementation, strong universality and excellent industrial reliability.