63results about How to "Avoid adjustment errors" patented technology

An on-die termination circuit for semiconductor memory apparatus includes an ODT (On Die Termination) input driving unit that divides an input voltage on the basis of a resistance ratio according to a first code Pcode<0:N> having at least two bits and outputs a first line voltage, a first ODT control unit that counts the first code or resets the first code to a first set value according to whether or not the first line voltage and a reference voltage match with each other, an ODT output driving unit that divides an input voltage on the basis of the resistance ratio according to the first code and a resistance ratio according to a second code having at least two bits and outputs a second line voltage, and a second ODT control unit that counts the second code or resets the second code to a second set value according to whether or not the second line voltage and the reference voltage are consistent with each other.

The invention relates to an optical machine adjusting method of an R-C reflection and refraction system. The method comprises the following steps that 1) the shape of the glass back side of a secondary mirror is designed, the back side of the secondary mirror is coated with a reflective film, so that the spherical center image of the back side of the secondary mirror is overlapped with that of a glass reflection surface of the secondary mirror, and the theoretical positions of a spherical center image of a primary mirror and the spherical center image of the back side of the secondary mirror are determined; 2) the primary mirror is used to determine the reference of an interferometer, and an interferometry is used, so that the front focus of the interferometer is overlapped with the theoretical position of the spherical center image of the back side of the secondary mirror; 3) the secondary mirror is mounted in a secondary mirror frame; and 4) the secondary mirror frame is installed in a system, the interferometry is used, so that the practical position of the spherical center image of the back side of the secondary mirror is overlapped with the front focus of the interferometer, and the secondary mirror is adjusted. The technical problems that a present adjustment process of the R-C reflection and refraction system is complex, high in difficulty and low in precision, the shape of the back side of the secondary mirror is changed so that the back side is overlapped with the spherical center image of the reflection surface, and the difficulty in adjusting the primary and secondary mirrors of the R-C reflection and refraction system, especially the secondary mirror, is greatly reduced.

The invention discloses a water temperature control method and device. The water temperature control method comprises the following steps that detection and input are carried out, and particularly actually-measured temperature LT and the water temperature change rate VT in a sampling period are detected, and detection results are input; comparison and judgment are carried out, particularly, the actually-measured temperature LT and the water temperature change rate VT are compared with set ranges of target temperature LTS and the water temperature change rate correspondingly; and output and control are carried out, particularly, according to the comparison results, corresponding energy control activities are achieved, the larger the actually-measured temperature LT compared with the targettemperature LTS and the water temperature change rate VT are, the larger the energy adjusting loading rate is. The water temperature control device comprises a detection and input module, a comparisonand judgment module and an output and control module. By means of the technical scheme, the water temperature control method and device have the beneficial technical effects that associated equipmentwater temperature control can be achieved, the response speed is high, and control is accurate.

The invention relates to the technical field of LED display, and specifically discloses a splicing bright and dark line adjustment system for an LED display screen based on two-dimensional graphic coding. The system uses the two-dimensional graphic coding to realize fast positioning of the bright and dark lines of a splicing gap, accurately identifies the gap width by the computer graphic recognition technology and calculates an adjustment coefficient of a corresponding edge pixel point, thereby preventing the occurrence of inconsistent brightness of the LED pixel points from causing the adjustment error of the bright and dark lines. The system mainly comprises a graphic coding module, an image acquisition module, a peripheral processing module and an LED display control module. The codingmodule is configured to perform two-dimensional graphic coding of the splicing gap of the LED display. The image acquisition module is configured to acquire each the imaging information of each splicing gap and upload the imaging information to a server. The processing module is configured to identify the gap imaging information, and calculate a bright and dark line adjustment coefficient. The LED display control module is configured to output the bright and dark line adjustment coefficient to the LED pixels at the splicing gaps of the LED display screen, thereby realizing the adjustment of the bright and dark lines at the splicing gap of the LED display.

The invention discloses a microsphere inner surface defect measurement method. The method comprises the following steps: acquiring an interference intensity graph of microsphere outer surface test light and reference light, an interference intensity graph of microsphere inner surface test light and reference light and a light intensity distribution graph of reference light; obtaining complex amplitude distribution of the outer surface interference light field and the inner surface interference light field; introducing a virtual lens for complex amplitude reconstruction to obtain complex amplitude distribution of the reconstructed outer surface interference light field and inner surface interference light field; converting the complex amplitude of the outer surface test light into transmission light to reconstruct the complex amplitude; obtaining an inner surface reconstruction complex amplitude after elimination and modulation; according to the diffraction distance, using reverse diffraction calculation to obtain diffraction surface complex amplitude distribution, and determining inner surface defect phase information. According to the invention, the virtual lens is introduced, diffraction calculation between curved surfaces is converted into diffraction calculation between planes, and the sampling problem caused by introduction of spherical phase is avoided.

The invention discloses a movable integrated table and chair. The movable integrated table and chair comprising a tabletop board, a chair and a bottom plate is characterized in that a table drawer ismounted at the bottom of the tabletop board; the table drawer and the chair are respectively mounted on the upper surfaces of a first sliding seat and a second sliding seat through table legs and chair legs installed at the bottom; the inner portions of the first sliding seat and the second sliding seat are internally installed with a first fastening screw and a second fastening screw; a guide rail is mounted on top of the bottom plate; footplates are rotatably mounted on the inner walls of the table legs through a rotating shaft; the first sliding seat and the second sliding seat are in sliding installation to the guide rail respectively through chutes opened at the bottoms thereof. The movable integrated table and chair has the advantages that with a massage matrix installed on a backrest of the chair, the massage matrix is capable of conducting effective massage on the back of a person when the person sits on the chair, thus improving the comfort of the person sitting on the chair;with the table and chair in integrated design and mounted on the guide rail, the distance between the table and the chair is easy to adjust and not easy to get lost.

The invention discloses a method for automatically adjusting the brightness of a display screen based on the pupil size, and the method comprises the following steps: step 1, starting the authority ofa front camera, collecting an eye image, and calculating the pupil diameter; step 2, collecting pupil data of a user and custom screen brightness in the three modes; step 3, acquiring data changes ofthe pupil diameter of the user under different ambient illuminance in real time; and step 4, comparing the pupil diameter at the current moment with the pupil diameter at the previous moment, and adjusting the most appropriate screen brightness in the current environment. According to the invention, the brightness of the display screen can be automatically adjusted, extra photosensitive devices and the like are not needed to save resources, the problems of misjudgment and the like caused by adjusting the brightness of the display screen based on environment comparison can be avoided, and thevisual experience of a user is improved.

The prevent invention relates to a flow rate regulator which utilizes a manipulating unit to change a connection pipe diameter of a flow device so as to regulate flow passing the connection pipe. A reference point is defined in the manipulating range of a manipulating part for regulating a flow rate of the intravenous fluid so as to match a manipulation point of the manipulating part with a flow rate measured at a reference point with respect to a prescribed flow rate to be injected, thereby regulating the prescribed flow rate. The flow rate regulator has the advantages of a fast regulating speed, high accuracy and high efficiency and can avoid measuring errors and further avoid medical negligence.

The invention discloses a method and system for coordinately controlling primary frequency modulation and AGC of a hydroelectric generating set and belongs to the technical field of a power system. The method comprises steps of determining transmission power changes in tie lines of different regions of an interconnected power grid, and determining frequency changes of the hydroelectric generatingset according to the transmission power changes; determining a hydroelectric generating set speed regulation system load frequency response coefficient of the hydroelectric generating set speed regulation system after primary frequency modulation according to the frequency change of the hydroelectric generating set; adding a frequency modulation power correction value to a frequency modulation power preset value of secondary frequency modulation of the hydroelectric generating set speed regulation system, and performing secondary frequency modulation; determining whether the frequency modulation power of the secondary frequency modulation counteracts the frequency modulation power of the primary frequency modulation, and whether the frequency deviation of the hydroelectric generating set after the secondary frequency modulation is finished is 0; and converting an AGC power closed-loop control chart to obtain a corrected AGC power closed-loop regulation improved chart, and carrying outAGC control. The method is advantaged in that adjustment errors caused by the fact that the primary frequency modulation effect is counteracted by secondary power adjustment are avoided.

An apparatus for adjusting the pressure in a tire of a vehicle (1) comprising a compressed gas source (14), a coupling (16) which can be fastened on a valve (9) of the tire, and control means (11, 14, 17) for selective action upon the coupling (16) with compressed gas from the compressed gas source (14), wherein the control means comprise an interface (11) for communication with a TPM system (3-8).

The invention provides a hand wheel component of a temperature control valve, and belongs to the technical field of an engineering element, which is used for solving the problem of the existing hand wheel of the temperature control valve that an adjusting handle is separated from a handle dragging component caused by excessive rotation of the adjusting handle. The hand wheel component comprises a thermal bulb, a fixing support and a cylindrical base, wherein, the thermal bulb is fixed in the fixing support; the fixing support is connected with an end part of the base through threads; a post rod of the thermal bulb abuts against the base; the other end of the base is connected with a nut; a shell is fixed outside the fixing support; a limit mechanism for limiting the rotation angle between the shell and the base and adjusting the size of the limited angle is arranged between the shell and the base; and an identification mechanism capable of identifying the circumferential position of the shell relative to the base is also arranged between the shell and the base. The hand wheel component of the temperature control valve has the advantages of accurate control of the rotation stroke range and safe use.

The invention discloses an adjusting method of the range of a pipette. The adjusting method comprises the following steps: setting a preset range value; acquiring an image of the current range value of the pipette; recognizing the range value in the image; and rotating a range rotary disc according to the current range value and the preset range value. The range of the pipette is adjusted to the preset range value by acquiring the image of a scale observation window of the pipette, recognizing the range value of the current pipette and then rotating the range rotary disc by a specified angle,so that convenience is brought for following direct operation and use. The application also provides an adjusting device of the range of the pipette applicable to the above adjusting method of the range of the pipette.

The invention discloses a lifting cable branch box with an adjustable angle. The lifting cable branch box includes a main body. The main body includes a branch box body and a base. The branch box bodyis located above the base. Stopping structure are fixedly installed on the four sides of the upper end of the main body. The upper end of the branch box body is provided with four groups of collars.Four groups of connection blocks are fixedly installed on the upper end of the main body. The lower ends of the four groups of connection blocks are provided with buffer structures. The stopping structure are located on the upper end of the branch box body. Two groups of angle measurement structures are arranged at the center of a waterproof partition. The stopping structures are evenly distributed on the four walls of the main body. The lifting cable branch box with an adjustable angle and a use method thereof can realize the real-time measurement of a tilt angle, reduce the workload and themeasurement cost, can adjust the angle of the branch box toimprove the measurement accuracy, have a buffer effect on the oscillating branch box body while adjusting the height and angle, and have a good prospect.

The invention discloses a remote control method for a car wheel locator. The remote control method includes a first step of obtaining patterns obtained through real-time shooting of a camera on locating targets with a plurality of feature points, a second step of judging the frequencies that all the feature points in the patterns do not appear within N seconds, and a third step of driving a computer system and enabling car wheels corresponding to the patterns to enter corresponding measuring states according to the frequencies. The invention further discloses a remote control system for the car wheel locator. Through utilization of the error reporting principle of the locator identifying the locating targets, the method or the system can carry out remote control, namely, when the error frequencies of the locator for identifying the locating targets reach a certain preset value, the method or the system can be used for driving the computer system and enabling the corresponding car wheels to enter the corresponding measuring states according to a preset processing mechanism, and an operator does not need to go out from the bottom of a car and comes to a computer console to operate, so the method or the system is quite convenient and fast, and greatly improves adjusting efficiency, prevents adjusting errors from being caused, and reduces working burden of the operators.

The invention discloses a novel conveying system with a sweeping device. The novel conveying system comprises a left guide rail plate, a right guide rail plate, a left support, a right support, guide posts, springs, Haff blocks, a supporting shaft and scraper devices. The left support and the right support which are formed in an integrated machining mode through a mold are locked in a vertical kidney-shaped hole in the left guide rail plate and a vertical kidney-shaped hole in the right guide rail plate through bolts respectively and are in a fixed state with adjustable vertical positions, the guide posts with the springs are vertically connected in the left support and the right support in a penetrating mode, the Haff blocks are horizontally connected to the guide posts and connected with one ends of the springs, the other ends of the springs are fixedly connected to the upper ends or the lower ends of the guide posts, the supporting shaft is connected to the Haff blocks in the left support and the right support in a penetrating mode, and the multiple scraper devices are evenly connected to the supporting shaft in the axial direction of the supporting shaft and in the state that the scraper devices correspond to sweeping rubber belts or the surface of a conveying line. The novel conveying system with the sweeping device is compact in structure, stable in use, high in adjusting and matching precision and accurate in match and effectively improves sweeping efficiency and sweeping safety.