116 results about "Active measurement" patented technology

The invention relates to the technical field of substations, and discloses a safety assessment system and method for a main grounding grid of a substation. The method comprises the following steps: arranging a multi-point potential gradient sensor for a main grounding grid of a power transmission and transformation project transformer substation and carrying out synchronous measurement to obtain an original potential gradient data set; performing effective signal and interference signal distinguishing processing on the original potential gradient data set to obtain potential distribution information of the transformer substation grounding grid; establishing a transformer substation grounding grid dynamic impedance model for fault current analysis to obtain a whole-process potential distribution diagram including an initial stage, a steady-state stage and a recovery stage; and performing security risk assessment based on the whole-process potential distribution diagram, and outputting a security risk area report. According to the invention, effective measurement signals and interference signals are effectively distinguished, reliability and accuracy of grounding grid potential measurement data in a complex electromagnetic environment are significantly improved, and accurate positioning of a risk area and effective tracking of a hazard source are realized.

The invention discloses a safety control method and system for an emerging control main body, and belongs to the technical field of power system active control, and the method comprises the steps: carrying out the bidirectional data interaction through a master station AGC and a field station AGC, and carrying out the bidirectional data interaction based on a bidirectional data interaction result and a cooperative anti-error parameter; whether the emerging control main body is in a controllable state or not is judged in real time through collaborative security locking logic; if the control main body is in the controllable state, active measurement data of the emerging control main body are obtained, and jump detection and multi-source checking are carried out on the active measurement data; after verification is passed, a pre-control instruction is generated based on the control strategy, and reasonability verification and control effect simulation verification are carried out; and after the control effect simulation verification is passed, the pre-control instruction is taken as a final control instruction to be issued to the emerging control main body for execution. The method can greatly improve the safety control capability of AGC on an emerging control main body, guarantees the frequency operation safety of a power grid, and improves the safe and reliable power supply capability of the power grid.

The invention discloses an insulation monitoring method and system for a high-low voltage switch cabinet, and belongs to the technical field of electrical monitoring and insulation diagnosis, and the method comprises the steps of continuous monitoring, trigger type active measurement, feature extraction, intelligent diagnosis, uncertainty adaptive measurement and the like. According to the invention, the graph neural network and the deep learning model are adopted, and deep fusion and intelligent diagnosis can be carried out on multi-dimensional parameters. By comparing the confidence coefficient with a threshold value, the system can dynamically adjust measurement parameters and update the model by using a final judgment result to realize closed-loop adaptive optimization. According to the method, a high-confidence diagnosis conclusion can be obtained, accurate fault positioning is carried out, and the reliability and efficiency of insulation monitoring of the high-low voltage switch cabinet are remarkably improved.

In one implementation, a device may obtain a Simple Two-way Active Measurement Protocol test packet that includes hop-by-hop data collected by the Simple Two-way Active Measurement Protocol test packet along its path. The device may determine whether the Simple Two-way Active Measurement Protocol test packet includes an instruction to reflect the hop-by-hop data back to an originating session sender. The device may copy, based on a determination that the Simple Two-way Active Measurement Protocol test packet includes the instruction, the hop-by-hop data into a type-length-value segment of a reply Simple Two-way Active Measurement Protocol test packet. The device may transmit the reply Simple Two-way Active Measurement Protocol test packet back to the originating session sender.

A pipe ring flatness measurement method based on a total station specifically relates to the field of pipe ring flatness measurement, and the scheme comprises the following steps: collecting a three-dimensional coordinate point cloud of a pipe ring end face through the total station, dividing the pipe ring end face into measurement areas according to segment partitions, carrying out iterative sampling on the three-dimensional coordinate point cloud of a single observation station by adopting an RANSAC algorithm, screening effective measurement points, and obtaining the flatness of the pipe ring. Calculating a reference surface distance and a residual standard deviation, taking the number of the effective points of each observation station as a weight to obtain a global reference surface distance and a fusion residual standard deviation, dynamically adjusting an initial screening threshold, re-screening the effective measurement points according to the adjusted screening threshold and an RANSAC algorithm to obtain the number of the adjusted effective points, and calculating the total reference surface distance and the fusion residual standard deviation. According to the method, a complete closed loop is formed through data screening, reference fitting, multi-station fusion, quality evaluation and threshold optimization, so that the stability, interference resistance and working condition adaptation accuracy of flatness measurement are improved.

The invention relates to the technical field of digital information transmission, and discloses an aircraft multi-network fusion data real-time transmission and distribution system which comprises a physical layer state monitoring module, a transmission quality deduction engine, a deduction routing engine and a mapping model calibration module. Deducing a transmission quality index based on the transmission layer-physical layer mapping model so as to guide a routing engine to distribute data packets; meanwhile, the calibration module utilizes actual transmission layer feedback of a data packet to dynamically correct the mapping model, active measurement is replaced by passive deduction, information lag and resource occupation are avoided, and the problem of drifting failure of a deduction model in a complex environment is solved by introducing a self-calibration closed loop.

The invention discloses a portable distance measurement method and system for engineering measurement. The method comprises the following steps: acquiring a distance measurement point of a target object in engineering measurement and attitude parameters of measurement equipment by using the measurement equipment; processing the distance measurement points by using a density clustering algorithm to obtain effective measurement points, and marking the effective measurement points to obtain a distance measurement node sequence; the Euclidean distance between adjacent effective measurement points in the ranging node sequence is calculated, a ranging chain branch is constructed, and when a directional included angle between the adjacent effective measurement points meets a first spatial constraint condition, the ranging chain branch is adjusted to obtain a continuous ranging chain; and obtaining an abnormal node segment based on the curvature variation of the adjacent effective measurement points in the continuous ranging chain, obtaining a compensation ranging value of the abnormal node segment and a basic ranging value of a non-abnormal node segment, and obtaining a target ranging value. According to the method, the actual condition of a measurement scene is reflected more comprehensively, and various challenges in a complex measurement environment can be better adapted.

This disclosure relates to techniques for configuring multiple measurement gaps in a wireless communication system. A wireless device can provide wireless device capability information indicating measurement gap handling capability for the wireless device to a cellular base station. The capability information can indicate any or all of a supported maximum number of active measurement gaps for the wireless device, a preferred maximum measurement gap length overhead for the wireless device, or support for associating functionality with measurement gaps by the wireless device, among various possibilities. The cellular base station can provide measurement gap configuration information to the wireless device, which can configure one or multiple measurement gaps for the wireless device.

The invention relates to the technical field of measurement path planning, and provides a three-coordinate measuring machine measurement path optimization method based on digital twinning and related equipment. The method comprises the following steps: establishing a digital twinborn model of a measured part and a three-coordinate measuring machine; in the digital twinborn model, classifying measurement areas according to the measurement precision of the measured part to obtain a plurality of area types; obtaining an initial measurement viewpoint set, and screening from the initial measurement viewpoint set according to the region type to obtain an effective measurement viewpoint set; based on the effective measurement viewpoint set, solving an initial measurement path of the three-coordinate measuring machine by using an ant colony algorithm and taking a path distance, a measurement precision standard-reaching rate and motion energy consumption as optimization targets; and optimizing the initial measurement path according to the actual motion parameters of the measuring head of the three-coordinate measuring machine to obtain an optimized measurement path. According to the method, the viewpoint screening period can be shortened, the viewpoint screening efficiency is improved, the path planning efficiency is further improved, and the real-time measurement requirement is met.

The invention discloses a short circuit parameter measurement and analysis method, system, equipment and medium, and relates to the technical field of power system detection, and the method comprises the steps: carrying out the synchronous sampling of a voltage signal and a current signal in a detected line, carrying out the conditioning and conversion of an obtained sampling signal, and generating an original digital quantity; calibrating the original digital quantity to obtain calibrated effective measurement data; short-circuit parameters are calculated based on the effective measurement data, the short-circuit parameters comprise short-circuit current, short-circuit impedance and short-circuit power, and the calculation process comprises fundamental wave extraction and phasor analysis; visually displaying the calculated short-circuit parameters, and generating report data containing a measurement result according to user operation; and in the measurement process, the running state is dynamically adjusted according to the current task type and the energy consumption state. According to the invention, the authenticity of measured data is improved through synchronous sampling and conditioning conversion of voltage and current signals in combination with a multi-dimensional calibration strategy.

The invention discloses an L1 measurement result processing method and device and related equipment, and belongs to the technical field of communication, and the L1 measurement result processing method comprises the following steps: when the number of effective L1 measurement results of a reference signal of a cell corresponding to L1 resource configuration information associated with a reporting time is smaller than or equal to a preset reporting number, reporting the effective L1 measurement results of the reference signal of the cell corresponding to the L1 resource configuration information associated with the reporting time; the terminal comprises a first content in a first L1 measurement report associated with the reporting opportunity, and the first content is used for indicating an invalid L1 measurement result in the first L1 measurement report.

The invention discloses a structured light single-frame reconstruction method based on layered stereo matching. A structured light active measurement system is regarded as a binocular passive measurement system, random speckles are adopted as projection patterns, a single-frame depth estimation model is provided based on the stereo matching principle, and the single-frame depth estimation model mainly comprises a depth initialization module, a depth updating module and a depth refinement module. Compared with a traditional structured light three-dimensional reconstruction algorithm, the method has the advantages that three-dimensional reconstruction of an object can be completed only through a single-frame image, and the method has higher dynamics; compared with other deep learning based on a phase shift method, the method does not need to solve three-dimensional data through intermediate variables such as a wrapped phase and an absolute phase, and avoids the influence of an accumulation error on a final result. In addition, system calibration parameters are used as a priori construction model, and a simulation data set is adopted to assist training, so that the model has higher generalization performance.

The invention discloses a steel pipe end roundness non-contact measurement method based on a three-dimensional point cloud technology. The method comprises the following steps: S1, acquiring original point cloud data of a pipe end by adopting a laser triangulation method; s2, performing noise reduction on the original point cloud data of the pipe end by adopting a statistical filtering algorithm to obtain purified point cloud data of the pipe end; s3, performing down-sampling processing on the purified pipe end point cloud data by adopting voxel filtering to obtain down-sampled pipe end point cloud data; s4, performing primary positioning in the main axis direction on the downsampled pipe end point cloud data by adopting a principal component analysis method; s5, a minimum orthographic projection method is adopted to accurately obtain the finished pipe end point cloud data in the main axis direction; s6, multiple groups of pipe end point cloud slices are obtained in the direction perpendicular to the main axis; s7, calculating the slice roundness by adopting a differential evolution algorithm; s8, performing algorithm optimization and introducing a chaos inertia weight to obtain a global optimal solution; the device can effectively measure the roundness of the pipe end of the large-diameter steel pipe, and solves the problem of manual measurement of the roundness of the pipe end of the large-diameter steel pipe for a long time.

An apparatus of a user equipment (UE) comprising one or more processors, coupled to a memory, configured to decode, at the UE, from signaling received from a network (NW) through a base station, an information element (IE) regarding one or more measurement gaps (MGs). The processors determine, at the UE, when an uplink (UL) transmission is to be performed during a measurement gap, based on whether at least one condition related to a buffer-delay of at least one logical channel (LCH) or logical channel group (LCG) is met. The processors can encode, at the UE, uplink (UL) data for transmission on an uplink shared channel (UL-SCH) during an active measurement gap, of the one or more measurement gaps, based on the at least one condition related to the buffer-delay of the at least one LCH or LCG.

The invention, which relates to the technical field of new energy power generation and power grid dispatching, discloses a climbing reserve demand evaluation method, system and device considering new energy power generation random fluctuation, and a storage medium, comprising the steps of collecting a historical active measurement time sequence of a new energy station, and performing preprocessing; grouping the preprocessed active measurement time sequence according to time granularity duration, and calculating a power characteristic index based on each group of data; on the basis of the power characteristic indexes and according to a preset power division rule, dividing the new energy power generation power into power intervals, and obtaining a mapping relation between the time granularity and the power intervals; generating a reserve capacity demand duration curve and a required reserve capacity value based on the reserve capacity demand of the power interval section, and generating a climbing rate demand duration curve and a required climbing rate value based on the climbing rate of the power interval section; and resetting the time granularity duration, and updating the required standby capacity and the climbing requirement. The new energy power generation adjusting capacity is improved.

The embodiments of the present disclosure relate to measurement conflict handling methods, a user equipment, a network device and a communication system. A measurement conflict handling method comprises: a user equipment determining a processing operation on a first operation and a second operation, wherein the processing operation comprises at least one of the following operations: executing the first operation, and terminating the second operation; terminating the first operation and the second operation; executing the first operation first, and then executing the second operation; and terminating the first operation, and executing the second operation, the first operation comprising the user equipment determining an effective measurement gap in a first measurement gap, and the second operation comprising the user equipment determining to cancel the execution of a first measurement. Thus, a measurement conflict can be resolved.

The invention provides a multi-radar information fusion measurement method for multiplex rocket suspension recovery, which comprises the following steps: acquiring a distance measurement value of the surface of a rocket through a plurality of millimeter-wave radars arranged on a rocket recovery device, and screening out effective measurement points based on a preset effectiveness threshold value; based on the screened effective measurement points, solving an initial estimation value of a circle center position by using circular geometric constraints of the cross section of the rocket; and constructing a state vector containing the center position and the motion state of the rocket, and performing multi-frame data fusion on the initial estimation value by using a Kalman filtering algorithm to obtain the optimal estimation of the center position after smoothing. According to the method, effective data of multiple radars are fused, geometric constraints of the cross section of the rocket are introduced to carry out space domain circle fitting, and dynamic smoothing and tracking are carried out in a time domain in combination with Kalman filtering, so that the purpose of improving the measurement accuracy of the landing pose of the rocket is achieved.

An apparatus, comprising: at least one processor; and at least one memory storing instructions that when executed by the at least one processor cause the apparatus at least to perform: receiving, at a user equipment from a network node, a measurement validity configuration specifying radio interface measurement characteristics required to be met by the user equipment to obtain valid measurements; and determining, at the user equipment, whether radio interface measurements made by the user equipment meet the measurement validity configuration and, if so, providing an indication to the network node that valid measurements have been obtained.

The present invention relates to the field of radio frequency measurement technology, and discloses a broadband pulse measurement method based on a vector network analyzer. Aiming at the problem that the device under test cannot withstand long-term high-power signals, a special measurement scheme is designed for the vector network analyzer. The radio frequency source signal is modulated by a pulse switch, and the signal is down-converted to an intermediate frequency after passing through the device under test, and the intermediate frequency is then pulse modulated and filtered. A pulse modulation source is designed for radio frequency and intermediate frequency signal modulation and reception sampling synchronization to ensure that the sampling bandwidth is within the positive pulse width of the pulse period. When sampling, a reference pulse rising edge is introduced to trigger the digital down-conversion working state. After software delay, sampling is performed to achieve synchronization between sampling and intermediate frequency signal, and the results are accurate, stable and fast. In addition, in order to achieve distortion of the intermediate frequency signal link after radio frequency modulation, a modulation signal is introduced to further modulate and improve it. This scheme can effectively measure the amplitude-frequency characteristics, phase and other characteristics of the device under test.

The invention discloses a measurement verification method based on a multi-band signal and related equipment, relates to the technical field of voltage measurement, and solves the problem that voltage measurement is difficult to verify in real time. According to the invention, pilot frequency reference signals of three frequency bands of 20Hz, 50Hz and 80Hz are coupled to obtain a coupling signal, and the coupling signal is injected into a measured line; then, response signals of different frequency bands are collected through the three detection channels respectively, whether the detection channels are effective or not is verified, and the voltage value of the detected line is calculated based on the response signals collected by the effective channels. The coupling signal provides a redundancy basis, and when any frequency band is interfered, the other frequency bands can provide effective measurement data; whether the detection channel is effective or not is verified in real time in combination with the Mahalanobis distance algorithm, self-verification during voltage measurement can be achieved, and the average fault interval time of the power system is prolonged.

The invention discloses a cuff-free blood pressure continuous monitoring method and system based on a light guide film, multiband reflected light signals of fingertip skin are collected through the light guide film attached to a terminal screen, the light guide film realizes directional light guide and stray light filtering through a micro-nano grating array, the light guide film is aligned with screen pixel hardware, and the light guide film is connected with the terminal screen. And the signal to noise is obviously improved compared with a common camera scheme. According to the method, multi-dimensional features such as time difference, rise time and enhancement index between dual-band pulse wave crests are extracted, and systolic pressure and diastolic pressure are calculated in combination with a user personalized baseline model. The system supports dual modes of active measurement and night passive monitoring, motion artifacts are eliminated through an acceleration sensor, ambient light interference is inhibited through an ambient light sensor, and one-machine multi-person exclusive monitoring, local encrypted data storage and user autonomous management are realized through linkage with an applicant spectrum identity recognition patent. The blood pressure monitoring device does not need cuff inflation, does not need electrocardio reference, is free of oppression, can realize non-perception continuous blood pressure monitoring when a user uses a mobile phone daily, and has the advantages of being non-invasive, continuous, low in cost, high in precision and safe in privacy.

The invention belongs to the technical field of high-precision morphology measurement, and discloses an automatic refocusing large-measurement-range nano-morphology measurement method, which comprises the following steps of: 1, acquiring a spectral interference signal of a sample by using an OCT (Optical Coherence Tomography) system, and performing one-dimensional inverse Fourier transform on the signal in a wavenumber domain to obtain an airspace complex amplitude signal; step 2, selecting a surface complex amplitude signal according to the maximum signal intensity based on the airspace complex amplitude signal; step 3, calculating average low-frequency intensity based on the surface complex amplitude signal to obtain an actual defocusing distance; 4, performing refocusing calculation based on the surface complex amplitude signal and the actual out-of-focus distance to obtain a refocusing surface signal; and step 5, based on the refocusing surface signal, calculating and outputting a morphology height difference. According to the method, the effective measurement range of OCT nano-morphology detection can be expanded, the morphology detection capability of a non-flat surface is optimized, side lobe artifacts caused by defocusing are inhibited, the method is realized based on numerical calculation, and the system complexity and cost are reduced.

The invention discloses a method for measuring intraoperative radiotherapy Intrabeam water absorbed dose based on air kerma. The method comprises the following steps: characterizing a spectrum; a radiation substance matched with or close to the spectrum is selected, and the energy spectrum of the radiation substance is represented; acquiring measurement parameters of the air kerma rate; calculating a first correction factor by adopting a Monte Carlo method; calculating a second correction factor based on ionization chamber rod scattering; creating a conversion factor from air kerma energy to 1cm water absorbed dose at the measurement point; and calculating the water absorption dose rate at the position of 1cm. The active measurement method is adopted, the ionization chamber is used for measuring the absorbed dose of the rays generated by the spherical source applicator in water, namely the measured value is the absorbed dose at the position of 1 cm in water, the advantages of being easy to operate and short in measurement time are achieved, real-time reading can be achieved, and waiting is not needed.

An apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to perform at least: receive, at the user equipment, a measurement validity configuration from a network node, the measurement validity configuration specifying a radio interface measurement characteristic that needs to be satisfied by the user equipment to obtain a valid measurement; and determining, at the user equipment, whether a radio interface measurement by the user equipment satisfies the measurement validity configuration, and if so, providing an indication to the network node that a valid measurement has been obtained.

Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) receives a positioning reference signal (PRS) configuration comprising at least a PRS period defining repetition of one or more PRS resources associated with at least a first transmission reception point (TRP), receives a measurement gap configuration comprising at least a measurement gap repetition period (MGRP) defining repetition of a measurement gap, and performs one or more positioning measurements of the one or more PRS resources during one or more repetitions of a measurement period, the one or more repetitions of the measurement period having an effective measurement period, the effective measurement period based on an alignment period and a time period T in which the UE can process a duration N of PRS symbols, the alignment period based on the PRS period and the MGRP.

The invention relates to the technical field of power system parameter measurement, and discloses a power grid broadband impedance measurement method, which comprises the following steps of: dividing a target broadband into three complementary or staggered frequency groups, and alternately injecting multi-frequency harmonic current disturbance signals into a three-phase power grid in a cyclic rotation mode, acquiring a node response voltage signal of the three-phase common coupling point and a network side branch disturbance current signal; and frequency spectrum components of voltage and current signals are extracted from the node response voltage signal of the three-phase common coupling point and the network side branch disturbance current signal by adopting a fast Fourier transform method, and node impedance information of the power grid is calculated based on the frequency spectrum components of the voltage and current signals. The power grid impedance is effectively measured, the influence of the frequency response overlapping effect in the impedance measurement process is eliminated, and the measurement speed and precision are improved.

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The method may be performed by a UE. In certain configurations, the UE receives, from a base station, a triggering command for a target cell related to a radio research management (RRM) procedure. The UE determines whether a report for a valid measurement has been transmitted within a predetermined period of time before receiving the triggering command. In response to determining that the report has not been transmitted, the UE transmits, to the base station, the report for the valid measurement of the RRM procedure to shorten a delay of the RRM procedure.

The invention provides an automatic testing method, device and system based on a trusted platform module, and belongs to the technical field of computers. The method comprises the following steps: controlling a universal computing platform to send a first one-way communication instruction to an equipment mainboard, controlling a storage module read-write control unit of the equipment mainboard to respond to the first one-way communication instruction, and controlling a storage module of the equipment mainboard to communicate with an emulator; controlling the universal computing platform to send a program burning instruction to the simulator, wherein the program burning instruction comprises a starting program; the emulator is controlled to respond to the program burning instruction, and the starting program is written into a storage module on the equipment mainboard; and controlling the universal computing platform to send an automatic test instruction to the trusted security chip of the equipment mainboard, and performing automatic test on the startup program in response to the automatic test instruction by the trusted security chip. The method is used for solving the problem that an existing testing method of the active measurement function based on the trusted platform module is high in manpower and time cost.

The invention discloses an unmanned aerial vehicle photoelectric target passive positioning method, and the method comprises the steps: carrying out the recognition, identification and target pixel offset calculation of a target through image detection and recognition equipment, and outputting a target identifier, the pixel offset and target imaging time; resolving the target sight line space angle according to the target imaging time; according to the height from the unmanned aerial vehicle to the relative target and the target sight line space angle, the actual offset distance of the target in the real physical space about the image center point is calculated; and according to the current latitude and longitude coordinates of the unmanned aerial vehicle, the physical distance from the target to the projection center and the target sight line space angle information, dynamically obtaining the latitude and longitude fusion coordinate value of the target in real time. Based on the principle of triangular mapping, the geographic coordinates of the target are solved by constructing the ray equation, accurate positioning of the target is achieved, and compared with a target positioning technology of a traditional algorithm, the method has the outstanding advantages of being low in cost, high in precision, high in concealment (passive measurement), simple in equipment, small in size and power consumption requirement and the like. And an effective measurement means is provided for the unmanned aerial vehicle to realize a target positioning task.

The present invention provides a multi-step online active measurement and grinding method and device based on a numerical control system, specifically: S1, measuring a standard workpiece, calculating and storing calibration data; S2, performing a standard part zeroing operation on the standard workpiece, obtaining and storing standard part zeroing data; S3, transmitting the obtained calibration data and standard part zeroing data to the numerical control system; S4, setting a grinding allowance value of a workpiece to be processed; S5, using the calibration data and the standard part zeroing data, determining the corresponding relationship between the set grinding allowance and the AD value; S6, obtaining the AD value in real time during the processing process, and judging whether the real-time grinding allowance value reaches the set value according to the corresponding relationship in step S5, if so, ending the current stage of grinding and entering the next stage of grinding until all steps are ground; S7, measuring the processed sample, and compensating and fine-tuning the processing size of each step; one measuring instrument probe can complete the online active measurement and grinding of multiple steps.