37 results about "Coordinated Universal Time" patented technology

The invention relates to the technical field of communication quality, and particularly discloses an acquisition terminal for communication quality monitoring, which comprises an electric energy meter interface module for reading an instrument value from an electric energy meter; the time synchronization module is used for aligning the terminal clock to the coordinated world time and generating a time frame with 1s as granularity; the communication quality monitoring module is used for measuring a communication quality index and calculating a value at the 95% position within a preset statistical time period as a statistical result preset statistical time period; the data slicing and counting module is used for forming 10T0 fragments according to 10 fundamental wave periods in each time frame; the caching and out-of-order correction module is used for performing grouping, out-of-order rearrangement and missing compensation on instrument values and communication quality indexes according to the same time frame before uploading and completing framing in a waiting window; and the alarm and uploading module is used for outputting a local alarm by taking the value of the 95% position as a statistical result. According to the invention, the overall end-to-end time delay of the acquisition terminal is reduced.

The application relates to the field of meteorological data processing and satellite navigation application, and provides a multi-source meteorological data fusion method and system based on a Beidou space-time reference. The method comprises the following steps: acquiring Beidou data and multi-source meteorological data to be fused, taking the coordinated universal time timestamp output by a Beidou ground-based enhancement station as a global time reference, and setting a sliding window; taking the world geodetic coordinate system corresponding to the Beidou positioning data as a space reference, resampling the multi-source meteorological data to a preset standard grid, and combining terrain elevation data to construct a unified space coordinate system; calculating the confidence degrees of fused static terrain features and dynamic change features based on Beidou satellite orbit residual and clock difference parameters, adjusting the feature weights of the fused static terrain features and dynamic change features, and generating an enhanced fusion feature matrix.

A system, comprising: transmitter (Tx); first receiver; second receiver. Wherein, method of synchronisation comprises: at first receiver (Rx1): receiving Co-ordinated Universal Time (UTC) signal (from

The embodiment of the application provides a temperature control method, system, vehicle and computer readable storage medium, the method comprises: receiving temperature adjustment information and target vehicle time sent by a man-machine interaction terminal, wherein the target vehicle time is the coordinated universal time obtained by converting the local vehicle time set in advance based on the target time zone, and the target time zone includes the current time zone of the man-machine interaction terminal or the preselected time zone; in the case that the vehicle and the external power supply device establish a connection, the temperature of the power battery of the vehicle is adjusted by using the electric energy of the external power supply device, so that the power battery reaches the temperature range corresponding to the temperature adjustment information at the target vehicle time. The application solves the technical problems of unreliable and inaccurate response of the power battery reservation type preheating control function based on the grid electric energy due to the lack of a unified time reference.

The application discloses a kind of security monitoring analysis system and method applied to electronic ticket platform, it is related to information security technical field, to solve the time difference attack problem of state synchronization delay implementation in distributed ticket system;Method includes: monitoring system captures multiple operation request sequences to the same ticket in specific time window;Respectively from business access end and distributed account book obtain the local trusted time stamp and block confirmation time stamp of each operation;After uniform to coordinated universal time benchmark, traversal all operation to execution serialization logic judgment: when the local time of operation one is earlier than operation two, but its on-chain confirmation time is later than operation two, it is judged that there is timing logic paradox;Accordingly, it is determined that fraudulent attack occurs and generates tamper-proof security audit report and pushes to regulatory party;The application realizes accurate insight into hidden fraud by cross-validation of double-source time stamp, fills the blind area of existing monitoring technology.

The invention discloses a system and a method for testing current transformers among transformer substations. The system comprises a mobile master station unit, a plurality of field data acquisition units and a portable standard current transformer. All the units are synchronized to coordinated world time through a global navigation satellite system; the mobile master station unit sets future absolute trigger time, and realizes synchronous acquisition of secondary signals of the current transformer to be detected and the portable standard current transformer by multi-station hardware; based on a standard truth value obtained by a main station self-monitoring loop, amplitude correction factor and phase correction calculation is carried out on each substation signal, and error compensation is completed; furthermore, high-precision and traceable ratio error and angle error results are output through frequency adaptive interception, windowing interpolation spectrum analysis and uncertainty evaluation. According to the invention, power failure is not needed, synchronous, high-precision and traceable comparison of multi-station current transformers can be realized in a wide area range, and the reliability of a power grid metering and protection system is improved.

The invention relates to a satellite-borne autonomous high-precision inertial coordinate system and earth-fixed coordinate system conversion method. The method comprises the following steps: calculating a polar shift parameter in earth orientation parameters, and a difference UT1-UTC of world time UT1 and coordinated world time UTC; calculating the Julian century number based on solar system centroid force class hours and the Julian century number based on world time UT1; calculating an age difference parameter by using the Julian century number based on solar system centroid force class hours; calculating nutation parameters by using the Julian century number based on solar system centroid force hour; calculating earth rotation parameters by using the Julian century number based on solar system centroid force class hours; respectively calculating a polar shift matrix, an age difference matrix, a nutation matrix and an earth rotation matrix by using the polar shift parameter, the age difference parameter, the nutation parameter and the earth rotation parameter; and calculating a conversion matrix of the earth-fixed coordinate system and the inertial coordinate system based on the polar shift matrix, the age difference matrix, the nutation matrix and the earth rotation matrix so as to perform conversion between the earth-fixed coordinate system and the inertial coordinate system.

A method for data transmission in non-terrestrial network (NTN) communication. A base station transmits one or more types of configuration information to a store and forward (S&F) capable user equipment (UE). The one or more types of configuration information comprises one or more of an S&F operation indication, a coordinated universal time (UTC) time related to a transition from an S&F mode to a normal mode, and a UTC time related to a transition from the normal mode to the S&F mode. In the configuration information, the S&F operation indication having a first value showing that the UE is not barred from the satellite; the S&F operation indication having a second value showing that the UE is barred from the satellite; or absence of the S&F operation indication shows that a feeder link of the satellite is available.

Embodiments of the present application disclose a time-keeping method and device for a distributed laboratory system, electronic equipment and a storage medium. Calibration data of a coordinated universal time traceability module and clock difference data and corresponding stabilities of at least two time-keeping clocks in the distributed laboratory system are obtained. A local atomic time is determined according to the clock difference data and the corresponding stabilities. It is determined whether the coordinated universal time traceability module is operating normally. If yes, the local atomic time is calibrated according to the calibration data to obtain a standard time. If not, reference data of a reference clock and prediction data of a virtual coordinated universal time prediction module and corresponding uncertainties thereof are obtained, and the local atomic time is calibrated according to the reference data and the prediction data and the corresponding uncertainties to obtain the standard time. Embodiments of the present application improve the disaster recovery performance and safety of the generation of the standard time of the distributed laboratory system.

A method for initializing a self-synchronizing coherent network Primary Reference Time Clock (cnPRTC) mesh includes: a self-synchronizing cnPRTC mesh is initialized during a start-up period; and a Universal Time Coordinated (UTC(k)) node connected to a selected cnPRTC node of the self-synchronizing cnPRTC mesh sets the selected cnPRTC node to a UTC(k) time provided by the UTC(k) node during the start-up period when a Global Navigation Satellite System (GNSS) system fails to provide the selected cnPRTC node with a GNSS time during the start-up period, wherein setting the selected cnPRTC node comprises directly inserting the UTC(k) time into a clock combiner module of the selected cnPRTC node, the inserted UTC(k) time replacing weighted times provided to the selected cnPRTC node by local time sources and remote time sources.

The invention discloses a high-precision wave recording acquisition and time mark synchronization system for power grid fault positioning, and relates to the technical field of power grid wave recording synchronization, and the system comprises the steps: 1, synchronously outputting three-gear sampling under a time axis of the same coordinated world time, and generating a time uncertainty upper bound and a group delay signature for a channel and a fragment; 2, performing quality locking near-lossless on the high-energy fragment, after coding, checking the high-energy fragment to reach a sample position and a peak amplitude through homologous detection, and returning to be lossless if the high-energy fragment is unqualified; 3, writing a fragment index, quality metadata, a fragment verification structure and a whole file signature into the compatible single file expansion container; step 4, carrying out progressive retrieval, breakpoint resume and cross-station de-duplication according to indexes, and implementing cold and hot hierarchical storage; and 5, based on group delay signature compensation and quality weighted loading, solving a reference moment and generating an acceptance check list. According to the scheme, cross-device alignment, reproducible key features, transmission and storage peak clipping, playback and evidence obtaining caliber unification and tool compatibility and auditing are realized.

The invention provides a vehicle end data processing method and device, a medium and equipment, and is used for summarizing equipment data at a vehicle end based on UTC (Coordinated Universal Time), and the method comprises the steps: collecting an original equipment data message of at least one piece of equipment at the vehicle end; requesting a network side to obtain UTC time, adding the UTC time into the original equipment data message, and assembling into an evolved equipment data message; and summarizing the evolution equipment data message and sending the evolution equipment data message to a cloud end. The unified time standard can be determined for the vehicle end equipment data, the method is particularly suitable for time correction of equipment which cannot be networked, and a basis is provided for follow-up accurate service processing of the cloud.

The application discloses a Wi-Fi precise time measurement double-terminal cooperative positioning method based on error correction and fingerprint matching constraint, which comprises the following steps: in an offline stage, a basic fingerprint database containing position information and angle information is constructed; in a single-point positioning stage, systematic error correction is performed on Wi-Fi precise time measurement original ranging values collected by double terminals to obtain initial positioning results; in a time matching stage, observation epochs of the double terminals are matched based on coordinated universal time to obtain synchronized observation data; in a fingerprint matching stage, double fingerprint matching is performed based on the initial positioning results and the fingerprint database to estimate real-time distances between the double terminals; in a cooperative positioning stage, the real-time distances are taken as geometric constraints, combined observation equations are constructed with the corrected ranging values, and the double-terminal final cooperative positioning results are solved. Through error correction, the single-point positioning precision is improved, distance constraints between the terminals are constructed by using angle fingerprint matching, and high-precision, low-cost and low-power indoor cooperative positioning is realized.

1. Name of the product in this design: Graphical User Interface for Ship Monitoring Information of Electronic Equipment. 2. Application of this design: This design is intended for use in an electronic device. 3. The key design features of this product are its graphical user interface. 4. The picture or photo that best illustrates the key design points: Design 1 front view. 5. Electronic devices are designed in a conventional way, so other views are omitted. 6. Design 1 is designated as the basic design. 7. Purpose of Graphical User Interface: Graphical user interfaces are used to display important information during ship navigation. The left side of the main views for Designs 1-6 displays the ship's position, attitude information, yaw information, fuel consumption information for various equipment, route, and trajectory. The right side of the main view for Design 1 displays navigation overview information. The right side of the main view for Design 2 displays auxiliary message information. The right side of the main view for Design 3 displays historical voyage information, and the selected voyage can be edited or deleted below. The right side of the main view for Design 4 displays historical refueling and berthing records, and the selected records can be edited or deleted below. The right side of the main view for Design 5 displays local time, Coordinated Universal Time (UTC), and Beijing time information, and the clock-setting record can be entered below, recording the clock-setting time, time zone, and current time. The right side of the main view for Design 6 displays basic ship information.

The embodiment of the invention discloses a distributed laboratory system time keeping method and device, electronic equipment and a storage medium. Obtaining calibration data of the coordinated world time traceability module, clock difference data of at least two timekeeping clocks in the distributed laboratory system and corresponding stability; determining local atomic time according to the clock error data and the corresponding stability; judging whether the coordinated world time traceability module operates normally or not; if yes, calibrating the local atomic time according to the calibration data to obtain standard time; otherwise, acquiring the benchmark reference data of the benchmark clock, the prediction data of the virtual coordination world time prediction module and the corresponding uncertainty, and calibrating the local atomic time according to the benchmark reference data, the prediction data and the corresponding uncertainty to obtain the standard time. According to the embodiment of the invention, the disaster recovery performance and safety generated by the standard time of the distributed laboratory system are improved.

The application relates to the technical field of communication, in particular to a method and device for generating a bill of eSIM multi-vendor signal data. The method comprises the following steps: obtaining an original data packet of a vendor; activating a corresponding synchronization strategy processor according to the type of a time source identification (TSI) in the original data packet, so as to obtain a coordinated universal time (UTC) benchmark alignment unified timestamp; calculating a positive buffer and a negative buffer based on the obtained network delay jitter and packet loss rate; determining an elastic billing time window according to the unified timestamp, the positive buffer and the negative buffer; aligning multi-vendor original event streams based on the elastic billing time window, and constructing a time-sequenced logical consistent ordered event sequence; and generating a unified bill according to the ordered event sequence and a billing rule set.

Example embodiments of the present disclosure are directed to time reporting in artificial intelligence (AI) machine learning (ML) data collection. A method comprises receiving, at a first apparatus and from a second apparatus, a timestamp configuration associated with AI / ML data collection; determining, based on the timestamp configuration, timestamp information associated with data generated by the first apparatus, wherein the timestamp information comprises Universal Time Coordinated (UTC) time information included based on a condition; and transmitting the data and the timestamp information. In this way, the UTC time information may be included in the timestamp information based on the condition, rather than being always included in the timestamp information for time reporting. As such, efficient delivery of the timestamp information for AI / ML data collection can be achieved.

The application discloses a satellite-based time service method and device, electronic equipment and storage medium, comprising: receiving a short message signal of a geosynchronous satellite, the short message signal comprising an uplink time delay of a standard time sent by a ground control center to the geosynchronous satellite; receiving a navigation message of the geosynchronous satellite and obtaining a correction parameter of coordinated universal time from the navigation message; calculating a downlink time delay of the geosynchronous satellite to a time service device based on the uplink time delay; calculating a local time of the time service device by using the standard time, the uplink time delay, the correction parameter and the downlink time delay; and performing time service by using the local time, without positioning the time service device to calculate the downlink time delay, and without occupying the calculation resources of the ground control center, compared with the prior art, the time service time is shortened, the influence of the calculated position on the time service precision is reduced, and the time service speed and precision are improved.

The invention provides a method, system and medium for satellite orbit extrapolation through GPU acceleration, and the method comprises the steps: generating a plurality of satellite initial orbits according to an STK simulation scene, and enabling the satellite initial orbits to be used for the initial orbit input of each thread of the GPU acceleration orbit extrapolation; constructing a mechanical model of the satellite and a motion differential equation of the satellite according to the motion characteristics of the satellite; loading the initial orbit data of each satellite, the mechanical model data and the time-space conversion parameter data to a GPU; unifying a space-time system of an initial orbit epoch and a mechanical model, converting coordinated world time into centroid dynamics, and converting the space system into a geocentric celestial coordinate system; constructing a global function by utilizing CUDA (Compute Unified Device Architecture), and transmitting a parallel computing task to a task calling unit of a GPU (Graphics Processing Unit) by utilizing the global function; and loading the orbit calculated by the task calling unit in the GPU into the CPU, and carrying out overlapping comparison on the orbit and the orbit of each satellite in the STK. The method can meet the processing requirements of a large number of satellites and mass orbit measurement data.

A system, method and apparatus in which a client computer initiates and communicates a distributed ledger transaction, said transaction labeled with a Coordinated Universal Time or UTC timestamp derived from GPS and / or GNSS satellite signals or, in the absence of GPS, an alternate source of UTC signals. The distributed ledger network nodes are able to send and receive UTC time signals even if there is a GPS and / or GNSS satellite failure.

The invention discloses a safety monitoring analysis system and method applied to an electronic ticketing platform, relates to the technical field of information safety, and aims to solve the problem of time difference attack implemented by using state synchronization delay in a distributed ticketing system. The method comprises the following steps: a monitoring system captures a plurality of operation request sequences for the same bill in a specific time window; acquiring a local trusted timestamp and a block confirmation timestamp of each operation from the service access end and the distributed account book respectively; after the time evidence is unified to the coordinated world time reference, traversing all operation pairs to execute serialized logic judgment: when the local time of the operation I is earlier than that of the operation II, but the chain confirmation time of the operation I is later than that of the operation II, judging that a sequential logic paradox exists; determining that fraudulent attack occurs and generating a non-tampering security audit report to be pushed to a supervisor; according to the invention, through cross validation of the double-source timestamps, accurate insight of hidden fraud is realized, and a blind area of an existing monitoring technology is filled.

A method, computer program product, and computer system for scheduling electronic meetings. A time zone table including a plurality of local time zones is provided. The time zone table includes a plurality of specified dates and an offset from Coordinated Universal Time (UTC) for each of the plurality of local time zones, and for each date the offset from UTC for each time zone includes an adjustment for daylight savings time or no adjustment for daylight savings time. An electronic meeting request for a plurality of users having a plurality of electronic calendars is provided. A primary time zone and a secondary time zone are also provided. The secondary time zone is different from the primary time zone. A primary time zone start time of the meeting request and a secondary time zone start time of the meeting request are determined using the time zone table.

The invention provides a high-precision recording device and method for triggering time and position of an artificial seismic source. The device comprises a satellite positioning time service module which is used for receiving a global navigation satellite system signal, generating a high-precision second pulse signal and outputting a navigation information message containing coordinated world time and latitude and longitude coordinates; the main control and recording module comprises a microcontroller, and the microcontroller is used for determining a high-precision absolute timestamp and latest latitude and longitude coordinates based on the navigation information message and integrating the high-precision absolute timestamp and the latest latitude and longitude coordinates to obtain a complete time-position data record; and the communication and storage interface is used for outputting the complete time-position data record to an external computer. According to the method, microsecond-level seismic source triggering instant recording can be realized, and the triggering time and the accurate geographic position coordinates of the seismic source point are automatically and correctly bound, so that reliable basic data are provided for high-resolution seismic data acquisition.

This invention discloses a high-precision waveform acquisition and time-stamping synchronization system for power grid fault location, relating to the field of power grid waveform synchronization technology. Step one involves synchronously outputting three levels of sampling under the same Coordinated Universal Time (UTC) time axis, and generating upper bounds for time uncertainty and group delay signatures for channels and segments. Step two involves near-lossless quality locking of high-energy segments, followed by encoding and verification of sample location and peak amplitude using a common-source detection kernel; failure to meet the criteria results in lossless rollback. Step three involves writing segment indexes, quality metadata, fragment verification structures, and full-file signatures into a compatible single-file extended container. Step four involves progressive retrieval by index, breakpoint continuation, and cross-site deduplication, along with cold and hot layered storage. Step five involves calculating reference times and generating acceptance lists based on group delay signature compensation and quality-weighted loading. This solution achieves cross-device alignment, reproducibility of key features, peak reduction during transmission and storage, unified playback and evidence collection standards, and considers tool compatibility and auditing.

The application relates to the GPS time service positioning technical field, and discloses a GPS week number flip method of an electronic device, which comprises the following steps: determining whether the current time is within a preset writing time range; judging whether GPS time obtained based on a GPS signal received by the electronic device meets a preset writing condition; and writing a GPS week number flip processing program into the electronic device under the condition that it is judged that the GPS time information meets the preset writing condition. Whether the vehicle speed, vehicle acceleration, coordinated universal time and other parameters meet the writing condition is judged, and the GPS week number flip processing program is written into the electronic device under the condition that the parameters meet the writing condition. The accuracy of the GPS week number flip processing program writing time can be improved after the vehicle speed and other parameters are introduced, and the effectiveness that the writing time does not directly lead to the week number flip can be ensured.

This invention belongs to the field of communication security and unmanned aerial vehicle (UAV) system applications, specifically relating to a low-altitude data encryption method that integrates spatiotemporal attributes. The invention includes: constructing a spatial grid index table for the mission airspace; acquiring the UAV's location information, current Coordinated Universal Time (UTC), and mission type in real time to construct a UAV attribute set; deriving a session key for the current communication cycle using a hash algorithm based on the UAV attribute set and a dedicated key; triggering an update of the session key based on preset trigger conditions; encrypting the session key using a preset access control policy to generate ciphertext; encrypting UAV service data to generate ciphertext payload; and decrypting the data using a dedicated private key held by the ground control station to obtain the session key and restore the UAV service data. This invention improves the data confidentiality and access controllability of the communication link, enhancing the security protection capabilities and airspace compliance of the UAV system.

A method includes determining, by at least one processor, whether a Coordinated Universal Time (UTC) service is communicatively coupled to a communication interface. The method also includes setting a UTC time with (i) a standard UTC time received from the UTC time service or (ii) a local UTC time calculated based on an oscillator frequency of a timer mechanism associated with the at least one processor based on a determination result of whether the UTC time service is communicatively coupled to the communication interface.

The invention provides a multi-station system power grid equivalent impedance identification method based on local measurement information, and belongs to the technical field of grid-connected inverter control. The method comprises the following steps: a station superposes a current power disturbance instruction according to a current reference power generation capacity and then generates power and sends out the power; pCC voltage and current measurement data are measured, a power grid equivalent impedance identification value under a field station view angle is identified by using a recursive least square method with a forgetting factor, and the forgetting factor is dynamically adjusted. The method does not need to inject harmonic signals and does not depend on real-time communication, a station dispatching center only needs to achieve multi-station synchronous white noise power disturbance through coordinated universal time UTC provided by a global positioning system GPS, and based on station local PCC voltage and current measurement data, a variable forgetting factor recursive least square method is adopted after preprocessing, so that the power disturbance of the multi-station synchronous white noise power disturbance is achieved. And parallel identification of the equivalent impedance of the power grid under each station view angle is realized.

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE), such as a roadside unit (RSU), located in an area with limited or no global navigation satellite system (GNSS) coverage may cycle sidelink synchronization signal (SLSS) neighbor information, such as in the form of an SLSS neighbor list (SNL). The SLSS neighbor information may include one or more of an index number, an SLSS identifier (ID), a timing source in-coverage flag, an RSU ID, a hop ID, a geographic location, a transmit synchronization offset, a synchronization source, and / or a coordinated world time (UTC) time.

The embodiment of the invention discloses a satellite identity construction method and device, electronic equipment and a computer readable medium. A specific embodiment of the method comprises the following steps: in response to received information of entering a preset track, obtaining a time-space parameter; generating a divided time period information sequence; executing the following construction processing: determining first division time period information; generating a dynamic identity label and aggregated private key information, and sending the dynamic identity label to a preset data sending end; in response to the received encrypted data and additional information, decrypting the encrypted data; obtaining the current coordination world moment again as an updated coordination world moment; and in response to determining that the updating coordination world moment is not within the time period represented by the first piece of division time period information, deleting the first piece of division time period information from the division time period information sequence, and executing the construction processing again based on the space-time parameters and the updated division time period information sequence. According to the embodiment, the data security is improved.