1621 results about "Time difference" patented technology

A method implemented in a wireless transmit / receive unit (WTRU) is provided. The method may include receiving configuration information indicating (i) a set of positioning reference signal (PRS) resources and (ii) a time window to be used for phase measurement with the set of PRS resources. The method may include determining a phase difference measurement based on a first PRS of a first plurality of PRS and a second PRS of a second plurality of PRS, the first and the second PRS being received in the time window. The method may include determining a reference signal time difference (RSTD) measurement based on the first PRS of the first plurality of PRS and a third PRS of the second plurality of PRS and transmitting reporting information indicating the determined phase difference measurement and the determined RSTD measurement.

The invention discloses an actuator sealing performance test method and system, particularly relates to the technical field of industrial equipment sealing performance detection, and is used for solving the problem of positioning failure caused by signal aliasing in a multi-leakage scene in an existing method. Pressure attenuation frequency spectrum characteristics and leakage impact frequency spectrum peaks are extracted respectively by pressurizing a sealed cavity and synchronously collecting dynamic pressure and vibration signals; calculating a path loss value based on the amplitude gradient and the propagation time difference, and screening candidate leakage nodes; constructing a space grid model to solve three-dimensional coordinates of the leakage source; after the coordinates are projected to the surface of the structure model, pressure modal coherence and vibration impact energy are coupled and analyzed to generate a detection map; and finally, outputting a multi-leakage-point identification graph through spatial clustering and intensity grading. Accurate separation and spatial positioning of multiple leakage signals are achieved, and the reliability of complex sealing structure detection is remarkably improved.

The invention relates to the technical field of fault monitoring, in particular to a power transmission line fault monitoring and positioning method, system and device and a medium. The method comprises the following steps: firstly, performing digital conversion on an original current signal to obtain time sequence data, and then identifying and classifying fault events through threshold detection and a feature extraction algorithm to obtain classification labels of fault types; then, based on the classification label, establishing a traveling wave propagation model and carrying out time difference calculation, carrying out clustering analysis on a plurality of wave head data in a preset time window, and judging whether the fault is a single-point fault or a multi-point fault through a clustering result; and finally, a positioning result is transmitted to the central server for comprehensive verification and alarm management, and a final fault response is formed. By introducing a time series data analysis and clustering judgment mechanism, the fault type can be accurately identified, single-point and multi-point fault conditions can be effectively distinguished, and meanwhile, the reliability of a positioning result is improved through comprehensive verification of the central server.

The invention relates to the technical field of edge computing, in particular to a safety production monitoring method based on edge collaboration, which comprises the following steps: collecting multi-node clock pulses, calculating adjacent time differences to form a pulse difference parameter set, carrying out statistical distribution, setting a dynamic tolerance boundary, and constructing an effective deviation parameter set; the method comprises the following steps of: generating a weighted smooth deviation result by combining clock stability and link delay weighted normalization, sorting monitoring data according to a timestamp to identify duplication abrupt change exception, constructing a cross-node exception time sequence by associating nodes and time information, and judging a safety state transition result of equipment. A time difference parameter is constructed through multi-node reference pulse arrival time, a dynamic deviation constraint is formed by combining distribution characteristics, clock stability and link measurement weighted smoothing are introduced, cross-node time reference consistency is kept, operation data unified time sequence rearrangement is carried out, a sudden change event reliably reappears in a time window, and an abnormal identifier is associated with a node identity. And forming a cross-node event evolution link.

The invention discloses an intelligent water supply management system and method based on wind-light-water multi-source data fusion, and relates to the technical field of electric digital data processing. The system comprises a time alignment deviation quantification module, a time alignment regulation and control module, a data fusion timeliness response quantification module and a timeliness response regulation and control module. According to the method, the time alignment deviation quantization result is obtained by quantizing the multi-source data time parameters, whether time alignment regulation is carried out or not is judged, if yes, the timeliness response parameters are obtained after regulation, and if not, the timeliness response parameters are directly obtained and quantized to obtain the data fusion timeliness response quantization result; and whether PLC scanning interval regulation and monitoring verification are carried out or not is judged based on the data fusion timeliness response quantification result, so that the timeliness of water supply management demand response is improved, and the problem that in the prior art, the water supply management execution response flexibility is poor due to the fact that the time difference of multi-source data processing is not fully considered is solved.

The invention relates to the technical field of time synchronization, and discloses a hybrid time service method based on Beidou satellite navigation and a TSN, which comprises the following steps: acquiring network topology structure information and historical time service error data of each synchronization node in a target distributed system, and constructing a dynamic time delay state set for jitter identification; based on the dynamic time delay state set, a current global time reference is extracted through a time calibration algorithm, a time difference reference vector sequence is generated, and initial synchronization adjustment is carried out on the TSN main node; constructing an inter-node clock convergence function curve according to the slave node response stability, and judging whether the synchronous network is in a low jitter interval or not based on the time offset rate and the time drift trend change; in combination with the node time state after directional offset suppression, a multi-channel redundant time synchronization mechanism in a time window is applied, a weight adjustment coefficient is extracted, and an unbalanced calibration factor is introduced; and according to a regression correction result, evaluating a time service stability index in real time. The method has the advantage of improving the time service stability.

The invention relates to the technical field of atomic clock control, and discloses a punctuality type atomic clock control method based on a microwave frequency band. The method comprises the following steps: firstly, acquiring microwave frequency band signal data and atomic state data, and constructing a time calculation model in combination with historical operation data to output a theoretical time value; performing multi-dimensional difference analysis on the theoretical time value and the actual measurement time value to generate a time difference coefficient matrix; inputting the matrix into a spatial propagation analysis network, and combining atomic clock component parameters and environmental parameters to generate a time anomaly probability distribution diagram; and finally, configuring microwave control parameters according to the distribution diagram, including starting a high-frequency monitoring mode for a high-probability abnormal region and applying a disturbance test to adjacent frequency bands. According to the method, through multi-dimensional data modeling, difference analysis and dynamic parameter configuration, the accuracy and adaptability of atomic clock control are improved, and the operation stability of the atomic clock in a complex environment can be enhanced.

In one embodiments, a first device includes a first n-pulse-per-second (nPPS) output interface to be connected to a second nPPS input interface of a second device via a first clock connection, and to send a first pulse at time A to the second nPPS input interface for receipt at time B, and a first nPPS input interface to be connected to a second nPPS output interface of the second device via a second clock connection, to receive a second pulse at time D from the second nPPS output interface sent at time C, and to log time D in a first memory, and delay computation circuitry to compute a clock connection delay in the first clock connection and / or the second clock connection based on time A, time D, and a time difference between receiving the first pulse in, and sending the second pulse from, the second device.

The invention discloses a multi-node collaborative logistics data real-time synchronization method and system, and particularly relates to the technical field of logistics data synchronization management. Round-trip delay between logistics nodes and a cloud platform is measured, delay jitter data is collected and analyzed, network transmission environment stability of the nodes is evaluated, when a network is unstable, initial time difference is recorded, the change trend of a clock drift value is evaluated, clock synchronization accuracy is analyzed, and the network stability and the clock synchronization accuracy are integrated. The method determines the severity of the time synchronization deviation between the logistics nodes, divides the time synchronization deviation into a slight deviation, a moderate deviation and a serious deviation, and generates a graded early warning signal to take a targeted treatment measure, thereby effectively solving the problems of data error sequence and scheduling error caused by the time synchronization deviation in the prior art, and improving the reliability of the system. The time synchronization accuracy, the network transmission stability and the overall operation efficiency of the logistics system are improved, and the accuracy and the reliability of logistics scheduling and event processing are remarkably improved.

A method by which a terminal operates in a wireless communication system, according to one embodiment, comprises the steps of: receiving time difference of arrival (TDoA) slots from anchor nodes (ANs); and measuring the position of the terminal by using the TDoA slots, wherein the TDoA slots include control information of the ANs and positioning reference signals (PRSs) of the ANs.

The invention relates to the technical field of construction control, in particular to an underground super-long thick and large concrete structure construction control method and system.The method comprises the following steps that through vertical displacement and strain data, trend extraction nodes are analyzed, difference sections are divided, load recognition influence areas are positioned, and structural sections are sequenced according to fluctuation increments; and adjusting cooling, supporting and loading parameters to form an intervention arrangement, and performing year-on-year adjustment based on construction data to generate feedback to complete regulation and control. According to the method, load-deformation dynamic mapping is established through time sequence association of displacement and strain data, a difference section identification mechanism is constructed based on time difference comparison, natural deformation and load surge response are distinguished, fluctuation characteristics of a load surge section are extracted to form response sensitivity ranking, and cooling parameters and a loading sequence are dynamically adjusted in combination with increment comparison. Graded regulation and control are realized, space-time dimensions of construction records and monitoring data are coupled, the crack positioning precision is improved, the predictability of deformation control is enhanced, and the regulation and control redundancy cost is reduced.

The invention relates to a time-frequency system integrity monitoring method, device and equipment and a storage medium. The method comprises the following steps: acquiring a time difference measurement result of each time-frequency signal link and a temperature measurement result of a time-frequency system; and inputting the time difference measurement result and the temperature measurement result into a time difference measurement combination estimation model to generate a temperature change coefficient and a noise normalization coefficient. And according to the temperature change coefficient and the temperature measurement result, calculating a temperature removal time difference measurement result to obtain a first time difference measurement result, and according to the first time difference measurement result and a preset sliding window length, constructing a factor graph model. According to the factor graph model, time difference forecast deviation and time difference frequency deviation of each time frequency signal link are estimated, and according to the time difference forecast deviation, the time difference frequency deviation, the noise normalization coefficient and preset integrity monitoring parameters, an RAIM algorithm is adopted to carry out integrity monitoring on the time frequency system. By adopting the method, the deviation alarm efficiency and accuracy of the time-frequency system can be improved.

The invention discloses a time calibration method and system for a time synchronization network, and relates to the technical field of communication, and the method comprises the steps: installing a clock on each node in the network; time calibration of a master clock is realized by receiving signals of at least two navigation satellites and calculating a time difference between the satellites; message exchange is carried out between the master clock and the slave clock through a network; calculating network delay and clock offset between the master clock and the slave clock; constructing a transparent clock model, recording delay time passing through each node in a message, and performing compensation when network delay is calculated; dynamically selecting a path with lower network delay to perform message exchange between the master clock and the slave clock; and optimizing the clock skew between the master clock and the slave clock. The error calculation module and the error optimization module are arranged to eliminate the uncertainty of most of network delay and message exchange, so that the time synchronization precision is improved, and the long-term stability of synchronization is improved.

Various aspects of the present disclosure relate to a user equipment (UE) that receives first control signaling indicating position information associated with a non-terrestrial station (NTS), the position information including an altitude of the NTS, a distance between the NTS and the apparatus, and / or an indication of a timing delay between the NTS and the apparatus. The UE also receives second control signaling indicating a first configuration identifying a first reference signal occasion. The UE determines a temporal range of an expected reference signal time difference duration based in part on the position information and the first configuration, and receives a reference signal during the temporal range of the expected reference signal time difference duration.

A user equipment (UE) may receive, from a first network entity, an indication of a configuration for the UE to report, to the first network entity, an estimate of a first timing advance value for a second network entity. The UE may determine the estimate of the first timing advance value. The UE may transmit, to the first network entity, the estimate of the first timing advance value for the second network entity or a reference signal time difference associated with the estimate of the first timing advance value. The UE may receive, from the first network entity, an indication of an error value associated with the estimate of the first timing advance value. The UE may determine a second timing advance value based on the estimate of the first timing advance value and the error value. The UE may transmit communications using the second timing advance value.

A method and system for predicting remaining thermal runtime in an electronic device is disclosed. The method involves obtaining the device's current processor power consumption and temperature sensor reading, selecting a predefined function relating temperature and time at that power level, determining the position of the current temperature on the function, calculating the time position for a shutdown temperature, and determining the time difference to estimate remaining runtime. In some examples, the functions are quadratic curves fitted to empirical time-temperature data collected at different processor power levels. In one embodiment, the prediction is implemented in augmented reality glasses and continuously adjusted using updated power and temperature data. The runtime prediction enables the device to warn the user prior to shutdown and perform graceful shutdown procedures. By accounting for diverse operating conditions, the method provides an accurate estimate of remaining time before the device reaches critical temperatures.

The embodiment of the invention provides a chip design verification method and a related device. The chip design verification method comprises the steps of obtaining a to-be-tested chip design and executing the to-be-tested chip design; in the process of executing the to-be-tested chip design, when it is detected that a current transaction processed by the to-be-tested chip design generates blocking delay due to input blocking conditions, if it is determined that the blocking delay exceeds the upper limit of the preset blocking period number, the blocking delay caused by the input blocking conditions is relieved, and the current transaction continues to be processed; in the process of continuing to process the current transaction, if it is detected that the current transaction generates transaction processing delay due to a non-input blocking condition and it is determined that the transaction processing delay exceeds a preset delay upper limit, an error indication is returned; wherein the transaction processing delay is the time difference between the moment when the starting signal of the current transaction is valid and the moment when the completion signal is valid. Through transaction processing delay detection, omission of scenes with problems in the chip can be avoided, and comprehensiveness of problem detection is enhanced.

The invention belongs to the technical field of sintering batching control, and particularly relates to a sinter alkalinity control method and system. The method comprises the following steps: acquiring a first-stage ratio adjustment amount according to update states of an XRF data source and an LIBS data source; based on the time difference between XRF data source updating and LIBS data source updating, a second-stage ratio adjustment amount is obtained according to the first-stage ratio adjustment amount; performing amplitude limiting protection on the second-stage ratio adjustment amount to obtain a third-stage ratio adjustment amount; and the sinter raw material ratio is adjusted according to the third-stage ratio adjustment amount, and the sinter alkalinity is controlled. According to the invention, modeling is carried out on the data dynamic trend of the LIBS data source, and the evolution rule of the batching process is captured, so that more scientific closed-loop control is realized; the traditional thought of directly utilizing LIBS data to predict the sintering state or purely depending on mixture component data and target value deviation is abandoned, the problems of single data point noise interference and model alignment are effectively avoided, and the control robustness is improved.

The invention relates to the field of network control system security, in particular to an asynchronous processing method for resisting zero dynamic attacks in a non-uniform sampling control system. Comprising the following steps: comparing and analyzing an attacked system and an unattacked system, and establishing a dynamic relation model between an output signal difference value and an attack signal; based on the relation between the zero-dynamic attack signal and the system state space, a zero-dynamic attack signal design strategy which is kept invisible at the non-uniform sampling moment is given; active introduction of a time difference into a controller of the sampling control system is considered, and a dynamic relation between a corresponding attack signal and an output difference value is reconstructed; active introduction of a time difference into a controller of a sampling control system is considered, and a dynamic relation between an output signal difference value containing the time difference and an attack signal is reconstructed; the existence of the time difference is determined by constructing a system containing the time difference and combining with a zero dynamic attack definition; on the basis of the given time difference, the condition for detecting the zero dynamic attack in the non-uniform sampling control system is determined, so that the system is protected; the method is used for enhancing the detection capability and defense effect of the non-uniform sampling control system on the zero dynamic attack.

The invention relates to a method for monitoring jamming or synchronism of a main engine brake of a vertical elevator, and aims to monitor and diagnose the jamming or synchronism state of the elevator brake in real time through the combination of an acceleration sensor and an electromagnetic signal. The method comprises the steps that acceleration sensors are installed on the two brake component sides of the elevator brake, vibration acceleration signals of the two brake components are collected, or the response time difference between the action vibration acceleration signals and voltage signals of the brakes on the two sides is calculated through time sequence analysis through a vibration switch with an adjustable threshold value and by means of the single-chip microcomputer technology; and the action response time difference of different brake components is determined. If the time difference exceeds the preset threshold value, it is judged that the brake is jammed or has an asynchronous fault. And finally, according to a conjoint analysis result of the vibration acceleration signal and the voltage signal, accurate diagnosis and real-time early warning of brake jamming or synchronization faults are provided. According to the method, the detection precision and response speed of elevator brake jamming or asynchronous faults can be improved, and reliable guarantee is provided for safe operation of an elevator.

The invention discloses a real-time monitoring and intelligent early warning method for ultrasonic equipment, and relates to the technical field of ultrasonic equipment monitoring, and the method comprises the steps: obtaining the input condition parameters of the ultrasonic equipment, and obtaining the calling part information of equipment parts related to the ultrasonic equipment based on the obtained input condition parameters; generating a simulation state parameter diagram according to the obtained operation parameter items and the input condition parameters; real-time equipment operation parameters of the ultrasonic equipment are obtained, and a real-time state parameter diagram is generated; performing differential comparison on the obtained real-time state parameter diagram and the simulation state parameter diagram, analyzing whether the operation state of the equipment component is abnormal or not according to a differential comparison result, and generating corresponding early warning information; according to the numerical difference and the time difference of each parameter item of the actual operation parameters, whether the operation of each parameter item of the corresponding equipment component in the corresponding operation stage is abnormal is comprehensively evaluated, so that more refined early warning of the ultrasonic equipment is realized.

The invention discloses a foundation pit support deformation real-time monitoring method based on edge calculation, and aims to solve the problems of multi-node time synchronization and clock drift compensation caused by unavailability or poor quality of satellite navigation and precise time protocols in an underground or shielded environment. According to the method, through event dictionary learning, partition time slot scheduling and safety coding micro excitation time synchronization, matched filtering decoding, multi-scale arrival time estimation, paired time difference robust fusion, frequency priority and phase speed limit correction and network disconnection time holding, the time synchronization efficiency is improved; the technical effects that multi-source data alignment, deformation field reconstruction and graded early warning are completed on the unified virtual reference time scale, and high-precision synchronization and online drift compensation are obtained without depending on the external time service condition are achieved.

A PDCCH monitoring method is used for reducing power consumption of terminal equipment. The method comprises the steps that a first DRX parameter used for configuring a first DRX and a second DRX parameter used for configuring a second DRX are obtained, the starting time of a first period period of the first DRX is t1, the starting time of a second period period of the second DRX is t2, and t1 is earlier than t2. And when the time difference between the t1 and the t2 is less than a first threshold value, starting to monitor the PDCCH at the t3 moment. Wherein t3 is not later than t2 and is later than t1.

The invention relates to the technical field of satellite communication, and discloses an interference avoidance method and device for an NGSO satellite, and the method comprises the steps: obtaining a target time interval and an interference avoidance execution time interval of the NGSO satellite; wherein the target time interval is a time interval when the NGSO satellite implements interference avoidance at a time; according to ephemeris information of a starting moment of the target time interval, determining a time difference between the starting moment and a time anchor point where the NGSO satellite is located; determining an interference avoidance starting time point according to the time difference and the interference avoidance execution time interval, and determining an interference avoidance implementation time point according to the target time interval and the interference avoidance execution time interval; controlling the NGSO satellite to implement interference avoidance based on the interference avoidance starting time point, the interference avoidance implementation time point, a preset termination time point and an interference avoidance database; wherein the interference avoidance database is at least used for indicating the position and the moment when the NGSO satellite generates interference on the GSO satellite.

A method for measuring spin of a golf ball includes obtaining at least two images of the golf ball after a golf club contacts the golf ball. The method also includes identifying the time span between the obtained at least two images to create a numerical time difference, defining an outline of the golf ball while the golf ball is in flight, finding at least one marking on the golf ball in each golf ball image, finding the rotations of the golf ball by aligning the at least one marking on the golf ball in each golf ball image, and converting the rotations of the golf ball into spin values by combining the rotations and the numerical time differences, wherein the spin values comprise at least a spin axis and a rotation angle. The spin values may then be displayed to a user.

Provided are a data transmission circuit system and a data reception circuit system, which use an edge of a pulse signal. The data transmission circuit system modulates a digital signal by using time levels determined by time differences between rising edges (or falling edges) of a clock pulse signal and rising edges (or falling edges) of a data pulse signal. The data reception circuit system demodulates a digital signal by using time levels determined by time differences between rising edges (or falling edges) of a recovered clock pulse signal and rising edges (or falling edges) of a data pulse signal.

The invention discloses a cosmic ray muon-based time synchronization system and synchronization method, and relates to the field of digital information transmission. The system comprises a time detector and a track detector which are arranged corresponding to a standard clock, and a case matching module, a time difference calculation module, a time adjusting module, a time detector and a track detector which are arranged corresponding to a clock to be calibrated, the case matching module is used for matching the cosmic ray muons according to the track information of the cosmic ray muons detected by the two track detectors and determining whether the cosmic ray muons penetrating through the two time synchronization devices belong to the same muon case or not, and if the cosmic ray muons penetrating through the two time synchronization devices belong to the same muon case, the time difference calculation module is used for obtaining theoretical flight time according to the track information detected by the track detectors; actual flight time is obtained according to a time detector; the time deviation is calculated according to the actual flight time and the theoretical flight time, the time adjusting module calibrates the clock to be calibrated according to the time deviation, and the precision and reliability of time synchronization in complex environments such as underwater and underground environments are improved.

The invention provides a positioning method and system based on the time difference of global short-wave time service stations, and the method comprises the steps: obtaining the coordinate information of each short-wave time service station, receiving the short-wave time signals of a plurality of short-wave time service stations, and recording the time when each short-wave time signal is actually received; eliminating the delay error of the ionosphere to the short-wave time signal, and calculating the time difference between the time when the short-wave time signal is received and the standard time when the short-wave time signal is broadcasted; and calculating the geographic position of the receiving end by using the time differences and the coordinate information corresponding to the at least three short-wave time service stations in combination with a time difference positioning algorithm. According to the method, the time difference information of a plurality of global short-wave time service stations is combined, the time delay error is eliminated, and the geographic position of the receiving end is calculated by using a time difference positioning algorithm, so that the positioning precision is improved. The method is suitable for an area where a GPS and other satellite navigation systems cannot cover or signals are interfered, the application range of the positioning technology is expanded, and the cost is reduced.

The invention relates to a broadband power line carrier node ranging method, which is characterized in that transmission time is obtained based on each count value of a source node and the frequency of the source node, so that time deviation caused by reference time difference between the nodes is avoided; meanwhile, the destination node corrects the response delay count value through the frequency deviation coefficient, so that the fine difference of the frequency between the source node and the destination node is considered, and the duration corresponding to the response delay count value in the source node is equal to the duration corresponding to the corrected response delay count value in the destination node; therefore, the response signal can be sent at the accurate sending moment, and correspondingly, the source node can receive the signal at the accurate moment, so that the time error in the signal transmission process between the nodes is reduced, and the ranging accuracy is improved. The distance measurement method provided by the embodiment of the invention is simple and convenient, and can accurately obtain the distance between the nodes.

The invention relates to the technical field of automatic control systems, in particular to an intelligent substation sequence control method and system, and the method comprises the following steps: based on an equipment operation instruction of an intelligent substation, analyzing the logic sequence of equipment operation, extracting the state change information of equipment, and carrying out the operation analysis of equipment state and time correlation; and judging the dependency relationship through the time difference of the equipment state, and generating an equipment operation dependency model. According to the method, the resource occupation condition of the equipment is monitored through a data stream compression algorithm, load balancing is carried out, the load level of the equipment is evaluated in real time, dynamic distribution and adjustment of loads are achieved, the pressure of high-load equipment is effectively relieved, potential conflicts of the equipment during parallel execution are recognized and solved in real time by introducing an operation conflict judgment mechanism, and the safety of the equipment is improved. Smooth execution of parallel tasks is guaranteed, delay and conflict possibly occurring in the equipment execution process are effectively reduced, and continuity and reliability of a power system are guaranteed.