24results about How to "Reduce measurement" patented technology

The invention discloses a bed load sediment transport rate measurement method based on multi-layer sediment acoustic signal attenuation correction of a Doppler velocity profiler, which comprises the following steps: sampling sediment on the surface of a riverbed in an overtopping area of a to-be-measured river reach, and measuring sediment gradation to obtain the median particle size of the bed sediment; obtaining flow measurement data, and extracting ship speed data from the flow measurement data; calculating a riverbed movement speed according to the ship speed data; filtering the riverbed movement speed data, and calculating a characteristic value of the filtered riverbed movement speed data; respectively calculating the vertical projection area ratio of bed load according to the filtered riverbed movement speed data characteristic values; calculating a dimensionless sediment particle size according to the median particle size of the bed sand; calculating the thickness of a bed load layer according to the dimensionless sediment particle size; calculating the volume concentration of the bed load according to the vertical projection area ratio of the bed load and the thickness of the bed load layer; calculating a multi-layer sediment sound signal attenuation correction coefficient according to the bed load volume concentration; and calculating the bed load sediment transport rate according to the multi-layer sediment sound signal attenuation correction coefficient. The bed load sediment transport rate can be accurately and effectively measured.

The invention discloses a bed load particle movement velocity measurement method based on Doppler flow velocity profiler sound wave scattering correction. The method comprises the following steps: selecting a measurement river reach, sampling silt on the surface of a riverbed on a floodplain of an unsubmerged area, screening the sampled silt, and calculating the median particle size of the bed sand of the river reach according to the screening result; a measurement area is selected, an ADCP and a matched unmanned ship carrying DGPS are used for constant-speed cruise type flow measurement, and flow measurement data are obtained; calculating a riverbed movement speed according to the ship speed data; filtering the riverbed movement speed data, and calculating a characteristic value of the filtered riverbed movement speed data; respectively calculating a bed load vertical projection area ratio and a bed load scattering correction coefficient according to the filtered riverbed movement speed data characteristic value; and calculating the movement speed of the bed load according to the vertical projection area ratio of the bed load and the scattering correction coefficient of the bed load. According to the invention, the difficulty that the Doppler flow velocity profiler cannot be directly used to measure the accurate movement velocity of the bed load at present is overcome.

The invention relates to the technical field of nuclear power station welding seam detection, in particular to a measuring device and a measuring method for nuclear power station fillet welding seam nondestructive testing, the measuring device comprises a ruler plate, a sliding ruler and a stepped sliding groove, the main body of the ruler plate is a pentagon formed by cutting one corner of a square, and the inclined edge and the adjacent edge of the pentagon are arranged at 135 degrees; two sides, adjacent to the bevel edge, of the ruler plate are provided with stepped sliding grooves, the two stepped sliding grooves are perpendicular to each other in the same plane, the two stepped sliding grooves are in limited sliding connection with two sliding rulers respectively in the length direction, the opposite ends of the two sliding rulers abut against welding corners on the two sides of a T1 or H1 fillet weld respectively, and a marking line is carved at the outer side end of each sliding ruler. The ruler plate is provided with scales at the edges of the two stepped sliding grooves. The invention provides the measuring device and method for measuring the special fillet weld of the nuclear power station.

The invention discloses a DC micro-grid fault diagnosis method based on a reduced-order unknown input observer. The method comprises the following steps: S1, calculating a state transition matrix, a control matrix, an observation matrix and a control input observation matrix of a state space model of each converter and line; s2, voltage and current of the alternating current side and the direct current side of each converter and interelectrode voltage and current at the two ends of a line are collected, and input quantity and output quantity of the state space model of each converter and the line are calculated; s3, calculating a state transition matrix, a control matrix, an observation matrix and a control input observation matrix of the state space model during steady-state operation of the direct-current micro-grid system; s4, calculating a direct current micro-grid system fault component matrix; s5, designing a sensitivity matrix; s6, stabilizing the reduced-order unknown input observer; s7, calculating a normalized residual error output by the observer; and S8, calculating a fault reconstruction error, and judging a fault sequence number. According to the method, whether the fault occurs in the DC micro-grid can be rapidly detected, and the method has important practical significance on rapid isolation of the fault and guarantee of safe and stable operation of the system.

The utility model discloses a reinforcement cage binding and positioning tool, and relates to the technical field of reinforcement cages. The reinforcement cage binding and positioning tool comprises a plate body, supporting legs are fixed to the four corners of the lower end of the plate body, two symmetrical fixing rings are arranged on the plate body, limiting rings are arranged in the fixing rings and distributed in an array mode, fixing mechanisms are arranged between the fixing rings and the plate body, and adjusting mechanisms are arranged between the limiting rings and the fixing rings. When the positioning tool is used, a worker adjusts the arrangement distance between the reinforcing steel bars through the adjusting mechanism, distributes the reinforcing steel bars at equal intervals, adjusts the diameter of the reinforcing steel bar cage, facilitates binding of the reinforcing steel bar cages with different diameters, adjusts the intervals between the reinforcing steel bars, facilitates binding, reduces measurement during binding, improves binding efficiency, and after adjustment is completed, the worker can conveniently carry out positioning on the reinforcing steel bars. And then the reinforcing steel bars are limited through the fixing mechanism, and binding of the reinforcing steel bars is facilitated.

The cylinder body structure of the electric control shock absorber comprises a cylinder body assembly, a guide assembly, a compression valve assembly and an elastic assembly. The cylinder body assembly comprises a middle cylinder body and a working cylinder body, and the middle cylinder body and the working cylinder body are arranged in parallel and spaced by a certain distance. The guide assembly is arranged at one end of the cylinder body assembly and comprises a guide assembly body, a first mounting groove and a working cylinder body mounting base. The compression valve assembly is arranged at the other end, away from the guide assembly, of the cylinder body assembly and comprises a compression valve body, a second mounting groove and a compression valve mounting base. The elastic assembly comprises a first elastic component and a second elastic component, the first elastic component is arranged in the first mounting groove, and the second elastic component is arranged in the second mounting groove. The two ends of the middle cylinder body are connected with the guide assembly and the compression valve assembly in a matched mode through a first elastic component and a second elastic component respectively. The utility model solves the problems that the elastic component is easy to damage and is not easy to perceive, and the electric control adjusting function of the shock absorber fails.

The invention discloses a device relating to the field of sensors, in particular to a device for researching the spatial distribution of an infrared LED thermal radiation intensity body. The device is characterized by comprising a support, an infrared LED detection light source, a three-angle measuring part, an infrared heat radiation intensity measuring device, a fixing part, a pulley trolley, a pulley track and a light shield. The invention also discloses a use method of the device for measuring the spatial distribution of the infrared LED heat radiation intensity body. According to the device, the LED heat radiation intensity at different space angles is measured by changing the power of the external transformer of the LED light source, and meanwhile, the high-temperature damage of an instrument is prevented by adhering the radiator to the back, so that the measurement range is widened. The beneficial effects of the invention are that the existing invention can only calculate the infrared heat radiation in a single direction and mostly assists the biological body surface temperature, and the invention can measure the infrared LED heat radiation intensity at each angle in the space, reduce the material loss, obtain economic benefits and ensure the infrared LED heat radiation technology.

The invention relates to the technical field of concrete tower drum splicing, in particular to a universal splicing platform for a fan tower drum, which comprises a main body component, a rotating component and a limiting component, the main body component comprises a moving component and a rotating component fixed at the top of the moving component, the limiting component is fixed at the top of the rotating component, and a ring piece can be placed at the top of the limiting component; then, the moving assembly and the rotating assembly can enable the ring piece to move and adjust the angle; according to the device, the ring piece is placed on the limiting assembly, then the adjusting assembly relieves limiting of the correcting assembly on the rotating assembly, the lever assembly drives the stress assembly and the connecting assembly to drive the rotating assembly to move, and therefore the ring piece can be corrected. Angles of the ring pieces on the limiting assembly can be adjusted, the moving range of the stress assembly is limited by the track assembly, and therefore the problem that the ring pieces collide with one another due to the fact that the adjusting angle is too large is solved.

The invention discloses a method for measuring characteristic parameters of a semiconductor chilling plate, and the method comprises the following steps: S1, electrifying, and measuring the hot end temperature and cold end temperature of the semiconductor chilling plate to be measured; s2, the temperature of the hot end is kept unchanged, the cold end is heated through a heater, and the temperature difference between the cold end and the hot end is zero; adjusting the heater to reduce the temperature of the cold end, and correspondingly measuring the heating power of the heater; powering off to raise the temperature of the cold end, and correspondingly measuring the electromotive force of the cold and hot ends; and S3, calculating a Seebeck coefficient and a resistance value of the to-be-tested semiconductor chilling plate, and calculating a heat conduction coefficient according to the Seebeck coefficient and the resistance value. According to the technical scheme provided by the invention, on the basis of lateral heating of the thin film heating resistor, the full temperature difference of the cold end and the hot end can be constructed only by heating and powering off the cold end, and the heating power is used for replacing the refrigeration power under the condition that the working current of the refrigeration sheet is not zero, so that the measurement process is simplified, the calculation error is reduced, and the measurement precision is improved.

The invention relates to an intelligent surveying and setting-out method applied to a building machine. The intelligent surveying and setting-out method comprises the following steps that S1, an intelligent total station is arranged on the top of the building machine; s2, a fixed point prism A and a fixed point prism B are arranged on the ground; s3, acquiring coordinate points of the fixed point prism A and the fixed point prism B by the intelligent total station to obtain a coordinate point C of the intelligent total station; s4, the intelligent total station emits pulse laser to a receiving prism at the top of the paying-off robot so as to obtain the distance and the angle, and the actual coordinate point D of the paying-off robot is obtained through the coordinate point C of the intelligent total station and the coordinate points of the fixed point prism A and the fixed point prism B; s5, the intelligent total station transmits the coordinate point D to a pay-off robot; and S6, the paying-off robot carries out elastic setting on the side line and the control line of the wall column according to the received known coordinate point D. According to the method, paying-off is directly conducted on the working floor through the total station in a measurement mode, paying-off precision is high, the procedures of measurement, paying-off and line snapping of measurement personnel are reduced, operation is easy and convenient, and the paying-off speed is high.

Described herein are natural killer group 2D (NKG2D) agonist complexes comprising a soluble MHC I chain-associated molecule (sMIC) and a non-blocking sMIC neutralizing antibody. Also provided are methods of using such complexes to activate CD8 T cells and methods of treating MIC-negative cancers and viral infections.

Disclosed are a method and apparatus for wireless communication, comprising a first receiver receiving first configuration information, the first configuration information configuring at least one SSB index for wireless link monitoring; the first receiver executes wireless link monitoring according to the RS resource identified by the at least one SSB index; the first processor is used for sending a first type of indication to a higher layer from a layer 1 when the wireless link quality on the RS resource identified by the at least one SSB index is poorer than a first threshold value; the minimum time interval between the consecutive first class of indications depends on whether the at least one SSB index belongs to an active BWP; the method provided by the invention is beneficial to improving performance, reducing resource consumption and reducing power consumption.

The utility model provides a curtain wall corner structure and connecting assembly belong to curtain wall installation technical field. The curtain wall corner structure and connecting assembly, including support stand, the front side of support stand is provided with two groups of crossbeam, two groups of crossbeam's back surface fixedly connected with fixed establishment, two groups of fixed establishment's opposite side with support stand fixed connection. The utility model has, in the installation process, through the hinge mechanism that a plurality of groups of transmission rod such as transmission rod no.

The invention discloses a short-circuit current peak regulation and control method for a triangular connection winding power transformer. The method comprises the following steps: step 1, test preparation; 2, measuring the effective value of the power supply voltage; 3, measuring and judging the phase sequence of the power supply; 4, connecting the primary side of a voltage measuring device; step 5, connecting the secondary side of the voltage measuring device; step 6, adjusting the synchronism of the phase selection closing switch; 7, adjusting the closing angle of the phase selection closing switch; 8, connecting the short-circuit test system with the transformer; 9-1, adjusting the peak value of the positive phase sequence short-circuit current of the power supply; and step 9-2, power supply negative phase sequence short-circuit current peak value adjustment. According to the invention, B-phase and C-phase voltage measuring devices of the short-circuit test system and B-phase and C-phase voltage measuring modules of the phase-selection closing switch are omitted, and the construction cost of the short-circuit test system and the cost of the phase-selection closing switch are reduced.

The utility model belongs to the field of hose sleeves, particularly relates to an adjustable hose sleeve, and aims to solve the problems that the time and labor cost is increased due to the fact that the conventional hose sleeve cannot adapt to hoses with different lengths and the work of measuring and cutting is increased, the following scheme is provided: the adjustable hose sleeve comprises a hose body, the two ends of the hose body are each sleeved with a fastening sleeve. A clamping groove is formed in the outer ring, located at the bottom, of the clamping sleeve; outer threads are arranged on the outer portions of the two inner taper pipes, and inner hexagonal grooves are formed in the tops of the two inner taper pipes; and a plurality of buckles which are uniformly distributed are fixedly arranged on the outer rings of the openings at the two ends of the protective pipe. Through the arrangement of the corrugated pipe, the flexible pipe can be freely telescopically adjusted according to the length of the flexible pipe so as to adapt to the flexible pipes with different lengths, the work of measuring and cutting can be reduced, higher flexibility and convenience are provided, the installation process is simplified, and time and labor cost are saved.

The short-circuit current peak value control method of the triangle-connected winding power transformer of the present invention comprises the following steps: step 1, test preparation; step 2, measuring the effective value of the power supply voltage; step 3, measuring and determining the phase sequence of the power supply; step 4, connecting the primary side of the voltage measuring device; step 5, connecting the secondary side of the voltage measuring device; step 6, adjusting the synchronization of the phase-selective closing switch; step 7, adjusting the closing angle of the phase-selective closing switch; step 8, connecting the short-circuit test system to the transformer; step 9-1, adjusting the short-circuit current peak value of the positive phase sequence of the power supply; step 9-2, adjusting the short-circuit current peak value of the negative phase sequence of the power supply. The present invention omits the voltage measuring device of the B phase and the C phase of the short-circuit test system and the voltage measuring module of the B phase and the C phase of the phase-selective closing switch, thereby reducing the construction cost of the short-circuit test system and the cost of the phase-selective closing switch.

A configuration parameter update method and an apparatus are provided. The method includes: when detecting that a first signal power of a first reference signal is less than a preset power, measuring, by a terminal in an RRC inactive state, candidate reference signals corresponding to candidate configuration parameters; determining, from the candidate reference signals, a first candidate reference signal that meets a preset condition, and sending a signal parameter of the first candidate reference signal to a first serving base station; and adjusting a beam direction and / or a transmit power of an uplink SRS based on the first candidate reference signal. According to the method, the terminal in the RRC inactive state adjusts the beam direction of the uplink SRS in a timely manner without switching a status. In addition, a base station participating in positioning may adjust a receive beam of the uplink SRS in a timely manner based on a signal parameter, thereby implementing positioning of the terminal in the RRC inactive state.

This utility model discloses an auxiliary fixture for coordinate measuring machine (CMM) measurement of a motorcycle frame, relating to the field of motorcycle frame inspection technology. It solves the problems of cumbersome operation, low efficiency, large errors, and inconsistent benchmarks in existing measurement methods. The fixture includes a front support mechanism, a rear support mechanism, and a mandrel. The front support mechanism includes a height-adjustable support platform, with height adjustment achieved via a lead screw, guide rail, and rotating handle. The rear support mechanism includes symmetrical left and right support seats connected by a connecting rod. The support seats have V-grooves and are fixed to the measurement platform by adjustable strong magnets. The mandrel passes through a hole at the rear of the frame and is placed in the V-groove. This fixture can accurately position the frame, adapt to the height requirements of different frame types, ensure stable rear positioning, unify the design, manufacturing, and inspection benchmarks, and improve measurement efficiency and accuracy. It is suitable for the inspection of four-wheeled and two-wheeled motorcycle frames.

The utility model relates to the technical field of decoration materials, in particular to a wall pinch plate which comprises a plate body, the plate body is provided with at least one groove body structure, the groove body structures are arranged in the length direction of the plate body, and one side of the plate body is provided with an inserting plate used for connecting adjacent pinch plates; a step plate is arranged on the side, away from the inserting plate, of the plate body, the step plate is fixedly connected to the side, used for abutting against the wall face, of the plate body, and an inserting groove allowing the inserting plate of the adjacent plate body to be inserted is jointly formed between the step plate and the plate body. The side, away from the side connected with the plate body, of the step plate protrudes out of the edge of the plate body. The wall gusset plate has the advantages that the problem that the seam gap of the wall gusset plate is too large is solved, and the overall decoration effect of the wall surface is improved.

The present disclosure relates to a scheduling method, a scheduling apparatus, and a storage medium. The scheduling method is applied to a terminal, and the method comprises: determining a measurement object that executes mobility measurement; and, on the basis of the measurement object, scheduling a measurement interval combination corresponding to the measurement object among a plurality of measurement interval combinations for executing mobility measurement. According to the present disclosure, a terminal can be activated or deactivated, and a required or unnecessary measurement interval can be scheduled, thus the measurement efficiency of the terminal can be effectively improved, and the measurement delay can be reduced.

An embodiment of the present application provides a measurement method, apparatus, device and readable storage medium, the method comprising: after monitoring the PDCCH, starting or restarting a timer, and during the operation of the timer, performing CSI measurement and / or reporting within the first BWP indicated by the first DCI carried by the PDCCH according to the CSI reporting configuration, thereby reducing the conflict between measurement and transmission.

A process control system for standardized blood pressure measurement and implementation method, includes a blood pressure measurement process control device and a built-in control module, the blood pressure measurement process control device includes a computer host, a display screen, a control switch and an electronic sphygmomanometer, the electronic sphygmomanometer is mounted inside the blood pressure measurement process control device through a fixed structure. The application realizes a group of standardized blood pressure measurements for patients by controlling the electronic sphygmomanometer through the built-in each control module, automatically completes binding and outputting patient's identity information and blood pressure measurement results, and generates a blood pressure measurement report with complete information, so as to reduce the work intensity of medical staff, meanwhile reduce the measurement procedural error caused by human factors, and improve the reliability of measurement results and records.

The invention provides a closed space communication optimization method and related equipment thereof. The method comprises the following steps: correcting a received original acceleration according to a space coordinate system, identifying a motion state to generate space motion data, and carrying out correlation analysis on received power of a reference signal according to the space motion data to obtain an early warning mark of signal attenuation and a time window, and determining a target base station from the neighborhood list according to the early warning mark, performing pre-synchronization processing on the target base station to obtain synchronization information of the target base station, and connecting the terminal to the target base station according to the time window and the synchronization information when the signal power between the terminal and the current base station obtained by the terminal is lower than a power threshold. According to the method, the operation state of the closed space is pre-judged in advance, the adjacent region pre-synchronization and switching request is started before the signal is completely attenuated, the weak signal capturing capability is enhanced, and non-inductive transition and rapid reconstruction of communication are realized.

A method for transmitting information on measurement of a positioning reference signal (PRS) by a terminal in a wireless communication system, according to an embodiment of the present specification, comprises the steps of: transmitting a message for requesting a measurement gap; receiving configuration information related to the measurement gap; receiving the PRS on the basis of the measurement gap; and transmitting information on the measurement of the PRS. The information on the measurement of the PRS is transmitted on the basis of a preconfigured resource.