45 results about "Measurement delay" patented technology

The invention discloses a segmented positioning measurement method and device for seismic data transmission delay, and belongs to the technical field of measurement. The method comprises the following steps: receiving a first data packet sent by a target data collector and a second data packet sent by a reference data collector; the reference data collector is deployed according to the deployment mode of the target data collector, and a collection port of the reference data collector is connected with a pulse signal; calculating by using the first data packet to obtain a first measurement delay, and calculating by using the second data packet to obtain a second measurement delay and an internal clock difference of the reference data collector; wherein the measurement delay is the total delay of the data on the whole transmission path; and determining the internal clock difference of the target data collector by using the internal clock difference of the reference data collector, the first measurement delay and the second measurement delay. According to the invention, segmented positioning measurement of transmission delay can be realized.

A method is for measuring a time lapse between a trigger and a pulse of a clock of a time-to-digital converter (TDC) device. The method includes the steps of: a) providing a delay line signal to a delay line of a TDC device; b) subsequently, at a measurement clock pulse: obtaining a measurement delay line state representing states of the delay cells; c) subsequently and within half a clock period of the measurement clock pulse: basing the delay line signal on a clock signal and providing the delay line signal based on the clock signal to the delay line; d) subsequently, at a calibration clock pulse: obtaining a calibration delay line state representing states of the delay cells, and e) computing the time lapse between the trigger and the measurement clock pulse based on the measurement amount of delay cells and the calibration amount of delay cells.

The invention relates to the technical field of digital twinning, and discloses an injection molding energy consumption optimization control method based on digital twinning, which comprises the following steps: acquiring a sensor thermal response time constant and a baseline disturbance characteristic by a digital twinning body, and calculating an inverted real temperature value by using the thermal response time constant; arbitrating the calculated output heat flow in combination with baseline disturbance characteristics; according to the method, the digital model of the dynamic characteristics of the sensor is established in the digital twin body, real-time reverse compensation is carried out on measurement delay and signal distortion generated by physical inertia, environmental disturbance is arbitrated, and the measurement accuracy is improved. The real transient characteristics of the physical process can be captured with high fidelity, and control deviation caused by measurement lag and false signals is avoided.

The invention discloses an unmanned aerial vehicle speed self-adaptive variable overload half-rolling inversion control method, which comprises the following steps: dividing half-rolling inversion maneuver into a rolling stage and an inversion pull-up stage, setting a switching logic, and adopting different control strategies in each stage, such as attack angle control in the rolling stage, rolling angle rate control based on a robust servo theory and the like, so that the speed self-adaptive variable overload half-rolling inversion maneuver of an unmanned aerial vehicle is realized. Overload control in the reverse pull-up stage and the like. Meanwhile, various technical means such as real-time updating of an aerodynamic model, introduction of machine learning auxiliary parameter estimation, multi-model fusion, a high-precision sensor, sensor data fusion and filtering, real-time compensation of measurement delay, an adaptive robust control algorithm, a multi-modal control strategy and interference suppression based on model prediction are adopted; the control precision, robustness and adaptability of the unmanned aerial vehicle in the semi-rolling inversion process are improved, and the application range of the unmanned aerial vehicle in a complex environment is expanded.

The logic may determine the frequency range of the PRS based on the PRS configuration, where the PRS configuration defines the resource blocks of the PRS frequency layer. The logic may determine a number of frequency hops between the frequency layers associated with the PRS frequency range during one measurement gap iteration based on the measurement gap configuration per UE, or during up to two measurement gap iterations based on the measurement gap configuration per frequency range (FR), in order to perform PRS measurements within at least one measurement delay. The logic may perform the number of frequency hops and PRS measurements during each of the one measurement gap iterations or up to two measurement gap iterations. The logic may then transmit at least one positioning measurement report via the interface.

The invention relates to the technical field of laser interference measurement, and discloses a very long baseline laser interference ground time delay simulation method, which comprises the following steps of: outputting a laser beam through a laser to form an interference signal through unequal arm interference, and measuring and acquiring real-time change data of laser frequency by using a phase meter; storing the data, performing multi-path delay processing, converting the data into a voltage signal through digital-to-analog conversion, and modulating the voltage signal back to a laser beam through an acousto-optic modulator; and finally, performing beam splitting and beam combining interference on the laser beams subjected to different delay modulation to obtain an interference signal simulating very long baseline time delay, and analyzing delay information by a phase meter. The device comprises a laser, an unequal arm interference assembly, a phase meter, a digital analog converter, an acoustic optical modulator group, a beam splitting and combining assembly and a detection assembly. The method does not need to depend on an ultra-long distance physical baseline, and precise simulation of very long baseline time delay is realized through real-time measurement of frequency noise, delay modulation and interference feedback.

A method comprises transmitting, by a first apparatus (a user equipment (UE)) to a second apparatus (a network device), capability information (e.g. in a MAC CE, RRC, or uplink control message) indicating capability of performing pathloss prediction, indication of performing uplink transmission based on pathloss prediction, or capability of performing pathloss prediction for prediction-based beam switching. The first apparatus receives, from the second apparatus, a transmission configuration indicator (TCI) switching command to a target TCI state, or an indication to transmit an uplink transmission. The first apparatus determines, based on the received TCI switching command or the received indication, exclusion of a pathloss measurement delay from a switching delay time for the target TCI state and / or a transmission delay time for the uplink transmission. The capability information may indicate capability of performing uplink transmission based pathloss prediction associated with a set of configured reference signals. The predicted pathloss may be used to apply uplink power control (UL TPC) in an uplink transmission.

A main controller is coupled with a first cluster coupled with a second cluster in a daisy chain. The main controller is configured to determine a measured delay time associated with a first cluster coupled with a second cluster in a daisy chain topology, and determine a propagation delay associated with the first cluster based on the measured delay time. The main controller is further configured to generate a message to the second cluster which includes a command to be executed by the second cluster, and send the message, through an isolated interface of the main controller, to the second cluster based on the determined propagation delay to execute the command to actuate the second cluster synchronized to a switching clock of the main controller.

The invention discloses a time-varying output coupling complex network state estimation method in a low-reliability communication environment, and belongs to the technical field of distributed state estimation methods. Comprising the following steps: S1, establishing a time-varying output coupling complex network model with random uncertainty probability measurement delay; s2, a periodic communication mechanism is introduced for scheduling; s3, constructing a distributed estimator; s4, deriving one-step prediction # imgabs1 of the i-th node at the s-th moment based on # imgabs0 #; S5, calculating an upper bound xi, s + 1s of one-step prediction error covariance of the i-th node at the s-th moment; s6, deducing a distributed estimator parameter Ki, s + 1 of the ith node at the (s + 1) th moment; s7, deducing state estimation # imgabs2 # S8, solving an estimation error covariance upper bound xi, s + 1s + 1 of the ith node at the (s + 1) th moment; and letting k = k + 1, and returning to S3. According to the method, the problem that the existing state estimation method cannot process complex network state estimation of a low-reliability communication environment and periodic scheduling at the same time is solved, so that the accuracy of the performance of the state estimation algorithm of the problem and the data transmission efficiency are improved.

Systems and methods for reducing measurement delays for group-based beam reporting (GBR) are disclosed herein. A user equipment (UE) having a first antenna panel and a second antenna panel receives, from a network, a pair of channel measurement resource (CMR) sets identifying reference signals transmitted across a pair of transmit receive points (TRPs) and periodically together. The UE measures the reference signals using narrow beams within a plurality of wider beams, each corresponding to one of the reference signals and on one of the antenna panels, and selecting a first narrow beam and a second narrow beam (one on each antenna panel) for simultaneous downlink (DL) reception. The UE transmits a beam report indicating one reference signal from each CMR set associated with one of the two selected narrow beams. Herein, particular methods for efficiently making measurements across the two antenna panels are disclosed.

An apparatus configured to process, based on signaling from a network node, configuration information for beam management, perform beam measurements on a current beam and on one or more new beams within a measurement delay period, the measurement delay period determined based at least in part on the configuration information and generate, for transmission to the network node within a reporting delay, a beam measurement report, wherein the reporting delay is determined based at least in part on the configuration information.

The present application discloses a measurement method and apparatus, and a terminal. The method comprises: a terminal performs L1 measurement, wherein the measurement delay of the L1 measurement is related to a first factor and / or the number of frequency points; and / or the terminal performs measurement by a first method or a second method, wherein the measurement comprises L1 measurement and / or L3 measurement; corresponding to the first method, the measurement delay of the L1 measurement is related to the number of cells involved in the L1 measurement and a second factor, and / or the measurement delay of the L3 measurement is related to the number of cells involved in the L1 measurement and a third factor; corresponding to the second method, the measurement delay of the L1 measurement is related to the number of cells involved in the L1 measurement and the number of frequency points involved in the L3 measurement, and / or the measurement delay of the L3 measurement is related to the number of cells involved in the L1 measurement and the number of frequency points involved in the L3 measurement.

A main controller is coupled with a first cluster coupled with a second cluster in a daisy chain. The main controller is configured to determine a measured delay time associated with a first cluster coupled with a second cluster in a daisy chain topology, and determine a propagation delay associated with the first cluster based on the measured delay time. The main controller is further configured to generate a message to the second cluster which includes a command to be executed by the second cluster, and send the message, through an isolated interface of the main controller, to the second cluster based on the determined propagation delay to execute the command to actuate the second cluster synchronized to a switching clock of the main controller.

A method is described for measuring a communication latency between a first device with a first local clock and a second device with a second local clock, the devices interconnected for digital communication to a network, comprising sending an upstream communication and a downstream communication between the devices, and measuring using said local clocks an upstream send time (τ1), an upstream receive time (τ2), a downstream send time (τ3) and a downstream receive time (τ4); calculating a first measured delay (y1) as τ2−τ1 and calculating a second measured delay (y2) as τ4−τ3; providing said measured delays (y1, y2) to a recursive filter function arranged to estimate a first latency (d1) and a second latency (d2) based on said measured delays (y1, y2) and on values for the first and second latencies (d1, d2) previously estimated by said recursive filter function, and iterating. A system and a computer software product are also described.

A user equipment (UE) receives a medium access control (MAC) control element (CE) (MAC CE) carrying an active downlink (or uplink) transmit configuration indicator (TCI) state list update. The active downlink (or uplink) TCI state list update includes a set of two or more new target TCI states associated with a set of two or more cells having different physical cell IDs (PCIs). The UE may receive or transmit according to at least one new target TCI state in the active downlink (or uplink) TCI state list update after a delay. The delay includes a measurement delay that depends on a frequency range in which the measurement is performed, and a periodic overlap condition for two or more synchronization signal blocks (SSBs) or pathloss reference signals (PL-RSs). The overlap condition is selected from a set of two or more overlap conditions.

The embodiments of the present disclosure relate to a communication method, and a terminal, a network device, a communication system and a storage medium. The communication method can be executed by a terminal. The method comprises: determining a measurement result; and sending the measurement result to a network device, wherein the measurement result comprises a first measurement result, a duration used for determining that the first measurement result is a first duration, the first duration is different from a second duration, and the second duration is a measurement duration corresponding to a second measurement result. In the present disclosure, a terminal reduces the measurement delay by means of prediction, thereby improving the measurement efficiency.

To provide a network measurement device capable of improving time accuracy of delay measurement for each frame in a network under measurement with a configuration which is simple and does not require a change of hardware.SOLUTION: A control unit 10 determines a difference between time information from a GNSS reception unit 5 and time information from a main body clock 7, and a deviation by an elapsed time of the time information from the main body clock 7, from captured data acquired by connecting an output port 11 and an input port 12 in a shortest manner. The control unit causes a delay measurement unit 3 to measure a delay time, causes a capture unit 4 to obtain captured data, and corrects the delay time obtained from the captured data by the difference between time information from the GNSS reception unit 5 and time information from the main body clock 7 and the deviation by the elapsed time of the time information from the main body clock 7, and corrects the corrected delay time by a maximum value and a minimum value of the delay time measured by the delay measurement unit 3.SELECTED DRAWING: Figure 1

Example embodiments of the present disclosure are directed to pathloss prediction for TCI state switching and / or UL transmission. A method comprises transmitting, by a first apparatus and to a second apparatus, capability information indicating at least one of the following: capability of performing pathloss prediction, an indication of performing uplink transmission based on pathloss prediction or capability of performing pathloss prediction for prediction-based beam switching; receiving, from the second apparatus, at least one of: a transmission configuration indicator (TCI) switching command to a target TCI state, or an indication to transmit an uplink transmission; and determining, based on the received TCI switching command or the received indication, exclusion of at least one path loss measurement delay from a switching delay time for the target TCI state and / or a transmission delay time for the uplink transmission.

Example embodiments of the present disclosure related to an observation window. In an example method, a terminal device receive a Channel State Information (CSI) report configuration for artificial intelligence / machine learning (AI / ML)-based beam management (BM) for temporal domain beam prediction, including a parameter indicating a number of time instances for measurements in an observation window and reporting the measurements based on measurement delay condition. The terminal device transmit a CSI report based on the CSI report configuration.

This invention discloses a target tracking method, apparatus, electronic device, and medium for underwater wireless sensor networks under measurement delay conditions. The method includes: constructing an underwater measurement delay model based on the delay caused by underwater acoustic propagation and sensor measurements under this delay; designing an augmented state estimator based on the underwater measurement delay model to compensate for the delay caused by underwater acoustic propagation; decoupling the augmented state estimator and extending it into a distributed augmented state estimator suitable for underwater wireless sensor networks; setting the morphological characteristics, dynamic parameters, initial state, and reference trajectory of the underwater target; and deploying the underwater wireless sensor network to perform target tracking using the distributed augmented state estimator. This invention can effectively compensate for the impact of measurement delay caused by slow underwater acoustic propagation on the accuracy and stability of underwater target tracking, keeping the tracking error within a small range.

The invention discloses a measurement method and device and a terminal, and the method comprises the steps that the terminal carries out L1 measurement, and the measurement time delay of the L1 measurement is related to a first factor and / or the number of frequency points; and / or, the terminal performs measurement in a first mode or a second mode, and the measurement comprises L1 measurement and / or L3 measurement; wherein, corresponding to the first mode, the measurement time delay of the L1 measurement is related to the number of cells measured by the L1 and a second factor, and / or the measurement time delay of the L3 measurement is related to the number of cells measured by the L1 and a third factor; corresponding to the second mode, the measurement time delay of the L1 measurement is related to the number of cells measured by the L1 and the number of frequency points measured by the L3, and / or the measurement time delay of the L3 measurement is related to the number of cells measured by the L1 and the number of frequency points measured by the L3.

The application provides a low-temperature superconducting magnet quench detection method based on an acceleration signal, uses acceleration signal data of a superconducting magnet in a preset time period before a detection time to obtain a first determination time and a second determination time in sequence through serial logic, and judges whether the superconducting magnet quenches according to the first determination time and the second determination time, and in the case that the superconducting magnet quenches, obtains a quench time of the superconducting magnet. Through measurement of a dynamic signal, the application can realize quench detection of a multi-coil superconducting magnet and quench detection of a single-coil superconducting magnet, and at the same time, measurement delay is avoided, and detection speed is improved. The application uses serial logic to obtain the first determination time and the second determination time in sequence, and improves detection accuracy. The application can solve the technical problem that the quench detection method of the superconducting magnet in the prior art cannot detect a quench time of the magnet in time.

Various embodiments herein provide techniques to define a measurement period for simultaneous reception (e.g., with multiple antenna panels) and / or another measurement configuration of a user equipment (UE). The UE may perform measurements on respective reference signals (RSs) and / or resources. The measurement period that is required may depend on one or more factors, such as receive (RX) beam sweeping factor and / or whether the RSs are overlapped or not. Other embodiments may be described and claimed.

To provide a delay time measuring device with which it is possible to more accurately measure a delay time.SOLUTION: A phase difference calculation unit 13 establishes a multiple N of light emission cycle needed for transition of timing from a state where the beginning of a video signal frame in which a light emission unit 10 is imaged by a video camera matches the beginning of on-transition of a light emission cycle to a state where the timing of the beginning of the frame matches the beginning of on-transition of the light emission cycle again. A light emission schedule determination unit 15 determines a light emission schedule of the light emission unit 10 in which the phase of the light emission cycle is shifted from 0 times to n times the unit time, for each N light emission cycle that is N times the light emission cycle. A light emission on / off control unit 16 turns the light emission unit 10 on and off according to the light emission schedule. A received light signal acquisition unit 21 acquires a received light signal generated by a light reception unit 20 that receives light from a display. A delay time measurement unit 22 measures a delay time on the basis of the difference in time between the time the light emission unit 10 is turned on and a rise time of the light signal.SELECTED DRAWING: Figure 2

The present invention discloses a method for optimizing the parameters of a DC distribution system controller considering measurement delay, which relates to the fields of DC distribution systems and automatic control. First, a converter device and a controller model are established, which is the basis for constructing the control system model; secondly, according to the characteristics of the system response in different stages of the delay process, a control model of the DC / DC converter under delay is established; then, by analyzing the delay controller model, the consequences of the delay are analyzed, and the root cause of the consequences is determined. The parameter of the voltage outer loop controller G1 is unreasonable. Finally, an optimization method for the parameters of the G1 controller is proposed, and the correctness of the proposed method is verified through numerical example analysis. The present invention studies the control modes of the DC / DC converter in different stages during the delay process, determines the influence of the delay on the system through analysis, confirms the root cause of the influence based on mechanism analysis, and eliminates the influence of the delay on the operation of the DC / DC converter according to the proposed parameter optimization algorithm.

The present invention discloses a distribution network interval state estimation method and system considering multi-source measurement delay fusion, including: 1. collecting distribution parameters and measurement information; 2. performing delay fusion on mixed measurements according to the sampling frequency and delay characteristics of various types of measurements to achieve synchronization of multi-source measurements in sampling time; 3. establishing an interval state estimation model that integrates multi-source measurement data based on the number of intervals, and linearizing the interval measurement function through measurement transformation; 4. solving the interval state estimation model using an improved Krawczyk-Moore algorithm, improving the accuracy and computational efficiency of the algorithm by presetting the initial solution interval and setting the interval equation approximate solution, and outputting the estimated interval of the distribution network system state quantity. The present invention can achieve accurate interval state estimation, effectively alleviate the initial interval dependence problem of the interval analysis algorithm, and has good convergence performance. It is of great significance to the formulation of distribution network optimization and control, safety assessment, and early warning system decisions.

An embodiment of the present application provides a time-to-digital converter and its calibration method. The time-to-digital converter includes: a measurement delay module including a first delay chain and a register array, a storage module for storing the correspondence between temperature and candidate compensation coefficients, and a correction module. The correction module is configured to compensate the first count value of the register array according to the compensation coefficient when an echo signal is injected into the first delay chain, so as to obtain a compensated count value. By using the pre-stored information on the relationship between temperature and compensation coefficient, the time-to-digital converter can determine the compensation coefficient corresponding to the current operating temperature of the time-to-digital converter, and thereby achieve real-time compensation of the count value, significantly improving the measurement accuracy and reliability of the time-to-digital converter.

The embodiment of the invention relates to a communication method, a terminal, network equipment, a communication system and a storage medium. The communication method may be performed by a terminal, the method comprising: determining a measurement result; sending the measurement result to network equipment; wherein the measurement result comprises a first measurement result, a time length used for determining the first measurement result is a first time length, the first time length is different from a second time length, and the second time length is a measurement time length corresponding to a second measurement result. According to the invention, the terminal reduces the measurement delay through prediction, and improves the measurement efficiency.

This disclosure describes systems, methods, and devices related to reducing the beam sweeping factor in neighboring cell measurements may reduce user equipment measuring time. A user equipment may detect that criteria for reducing a beam sweeping factor of measurements neighboring cells has been satisfied; measure the neighboring cells using a reduced beam sweeping factor, based on detecting that the criteria has been satisfied, by simultaneously receiving multiple synchronization signal block (SSB) beams; and report measurement results of measuring the neighboring cells to a radio access network (RAN).