83results about "Setting time indication" patented technology

The invention relates to the technical field of electronic timer calibration, in particular to an ammeter clock intelligent calibration method and system based on multi-modal fusion, and the method comprises the steps: firstly obtaining ammeter clock voltage and environment data, carrying out the preprocessing, and generating an instantaneous disturbance sequence and a steady-state voltage time sequence; respectively calculating a voltage chronic influence factor, a voltage acute influence factor and an environment acceleration factor; determining the influence coefficient of each factor through historical data regression of similar ammeters, carrying out fusion calculation on total life loss, and carrying out iteration to generate a dynamic correction period adaptive to individual damage; and finally, constructing a same-batch and same-environment electric meter reference group, screening similar clusters through clustering, comparing corrected time consistency, judging unconventional abnormity, and outputting a targeted calibration strategy. According to the method, the multi-dimensional error factors are quantified through multi-modal fusion, the differentiation model is constructed, the dynamic correction period is generated through iteration, the traditional fixed period calibration defect is overcome, and the long-term timing precision stability of the electric meter is improved.

The invention relates to a local clock calibration method and a time synchronization signal channel expansion system, a timed device receives a PPS signal transmitted by a channel expansion device, and the method comprises the following steps: based on a received PPS output signal, measuring and determining a period deviation y of a local clock of the timed device relative to a standard time; dynamically generating a correction step z and a correction interval b based on the period deviation y according to an allowable error threshold value Q; and in the next time service period, taking the calibration time interval b as a period, and utilizing the calibration step z to carry out multiple times of incremental adjustment on a local calibratable time counter, so that the timing of the local calibratable time counter is close to the standard time. According to the invention, the problem of one-to-many signal distribution can be solved with low cost and high reliability, and a time service algorithm which is low in calculation overhead and easy to transplant and deploy on MCUs with various performance levels can be realized.

The invention relates to a multi-time-source PTP time service circuit based on a Loongson SOC, and belongs to the technical field of timing systems. The time service circuit comprises a Loongson SOC, an FPGA, a high-stability crystal oscillator, an RS422 transceiver, a network card, a switch, computing blades 1-6 and an external clock source. According to the design scheme, the performance is stable and reliable, the mode is novel, the problem that interfaces between devices are incompatible in the equipment development process is solved, meanwhile, a design thought is provided for the time service scheme of the reinforced server, and a new solution is provided for transition of a new time service scheme and an old time service scheme. The scheme has been successfully applied to a certain reinforced server.

The application provides an electronic watch running time precision regulation system, and relates to the technical field of data processing.The system is used for collecting temperature values, voltage values and cumulative running time, counting the number of pulses output by a crystal oscillator in a unit time, obtaining state data and basic frequency data, calculating frequency offset values in different periods, performing window sliding, calculating drift trend values in different windows, calculating the difference between different states between adjacent periods, obtaining state change values, combining and analyzing the state change values with a frequency drift trend sequence, obtaining a state response coefficient set, identifying effective disturbance components in state change vectors of different periods, calculating pulse compensation values in different periods, obtaining pulse compensation data, correcting timing pulses, obtaining a pulse output sequence, and updating the time of the electronic watch according to the pulse output sequence.The application can regulate the pulse signal of the electronic watch and ensure the precision of running time.

Provided are an electric wave correction timepiece, a system, and a control method for the electric wave correction timepiece, which can immediately correct to a local time even in an airport building and can do so without complicated operations. The electric wave correction timepiece is characterized by including a reception unit that receives satellite electric waves containing first time information, a close-range reception unit that receives electric waves containing second time information transmitted from a portable device, an operation unit that accepts an instruction operation, a reception control unit that selectively executes first reception processing that causes the reception unit to operate to acquire the first time information at a preset time, and second reception processing that causes the close-range reception unit to operate to acquire the second time information based on the instruction operation from the operation unit, and a time correction unit that corrects a displayed time based on the first time information acquired in the first reception processing or the second time information acquired in the second reception processing.

The embodiment of the present application discloses a RTC device time correction method and system, and relates to the technical field of real-time clock, which comprises the following steps: in response to a time correction request, calling the production environment temperature stored in the RTC device and the corresponding first frequency tolerance under the production environment temperature; obtaining the actual environment temperature at the time of the time correction request; determining the second frequency tolerance corresponding to the RTC device at present according to the actual environment temperature, the production environment temperature and the first frequency tolerance; and correcting the RTC device according to the second frequency tolerance. The embodiment of the present application corrects the RTC device in real time through the stored production environment temperature, the first frequency tolerance and the obtained current actual environment temperature, so as to improve the clock accuracy of the RTC device.

The invention discloses a method and device for a system to automatically calibrate a court electric energy meter clock, a system terminal and a metering box, and relates to the technical field of clock calibration, and the method comprises the steps: querying a time synchronization information group recorded by an electric energy meter of a court; calculating a clock error of the electric energy meter at each temperature point according to the time synchronization information group; and carrying out clock calibration on the electric energy meter based on the clock error. Through system time acquisition and logic of calculating a target clock error according to the temperature, real clock skew at different temperatures can be accurately matched, the problems of excessive calibration at a low temperature and insufficient calibration at a high temperature are avoided, the accuracy of an electric energy meter clock can be effectively improved, and error accumulation caused by temperature change is reduced. And through systematic data processing and analysis, the calibration process is further optimized, and the overall efficiency is improved.

To ensure that occupants hardly feel uncomfortable in a vehicle that uses an internal time for automatic driving control, even when the internal time needs to be significantly corrected.SOLUTION: A time correction device for vehicles comprises: a time acquisition unit 110 that successively acquires absolute time information received from a positioning satellite; a time synchronization control unit 130 that successively synchronizes the internal time to the absolute time on the basis of the acquired absolute time information; a time control unit 120 that autonomously complements the internal time in the host vehicle when acquisition of the absolute time information is interrupted; a time correction unit 150 that, when acquisition of the absolute time information is restarted after being interrupted, corrects a difference between the absolute time and the complemented internal time; and a state identification unit 140 that identifies at least one of the state in which the host vehicle is and the state of the host vehicle itself. The time correction unit 150 changes the upper-limit value of a correction amount per round of correction by the time correction unit 150, in accordance with the state identified by the state identification unit 140.SELECTED DRAWING: Figure 2

This enables the detection of unauthorized time manipulation or unintended time changes to the system time that may occur between periodic time synchronization and health check intervals. [Solution] The system includes a system time acquisition unit 11 that repeatedly acquires the system time, which is the current time managed by the OS, and records it in the main memory 102, and an anomaly determination unit 12 that determines an anomaly in the current system time by utilizing the relationship between the most recently acquired current system time and past system times acquired in the past and recorded in the main memory 102. By determining an anomaly in the current system time by utilizing the relationship between system times that are sequentially updated at time intervals shorter than the time intervals for periodic time synchronization and health checks by the timestamp server 1, it is possible to detect unauthorized time manipulation or unintended time changes to the system time that may occur between time synchronization and health check time intervals.

This invention provides an intelligent sensor-driven clock timing accuracy calibration system, relating to the field of data processing technology. It acquires raw temperature sequence data with time stamps and location information by deploying temperature sensing units at different heating locations on the clock timing device; identifies the dominant heating region based on the temperature change rate and duration and generates corresponding weights; analyzes the heat transfer time difference in conjunction with the crystal oscillator installation position to construct a local thermal effect response sequence with time lag; derives the crystal oscillator frequency evolution process based on this response sequence and generates a predicted frequency offset; pre-adjusts the timing pulse before errors occur to form a timing reference signal; and simultaneously corrects the dominant heat source weights and heat transfer delay relationship by comparing with an external standard time source, achieving dynamic calibration of timing accuracy.

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.

To provide a wireless clock system and a method for implementing the wireless clock system that can reduce the effort required for registration between a wireless terminal and a wireless clock. [Solution] The wireless clock comprises a creation unit that creates a first signal including device address registration request identification information that requests the registration of a device address, and a communication control unit that transmits the first signal created by the creation unit. The terminal device comprises a registration unit that registers a device address if it is not already registered, based on the device address registration request identification information included in the first signal transmitted by the wireless clock.

To provide a wireless clock system and a method for the wireless clock system that makes it easy to identify which wireless clock corresponds to a given wireless clock from among multiple wireless clocks. [Solution] The wireless clock comprises a creation unit that creates a first signal containing identification information that instructs the display of individual identification information or a second signal that does not request the registration of wireless clock identification information, and a communication control unit that causes the creation unit to transmit the first signal or the second signal. The terminal device comprises a display control unit that, based on the first signal or the second signal transmitted by each of the multiple wireless clocks, displays the individual identification information of each of the multiple wireless clocks in a way that distinguishes between those that include identification information instructing the display of individual identification information and those that do not.

The present invention relates to a method for setting an electronic watch, the watch comprising a near-field communication module and a microcontroller configured to exchange electrical signals with this module, the method being carried out by means of a portable electronic device comprising a near-field communication device and a microcontroller configured to control said device, the method comprising a step of establishing a near-field connection (10) between the electronic device and the watch, a step of verifying (13) by the microcontroller of the electronic device the accuracy of a watch state data, a step of sending (21) to the watch's near-field communication module by the near-field communication device and on command from the microcontroller of the electronic device at least one instruction to set the watch when the watch state data is inaccurate,a processing step (22) of said at least one instruction received by means of the watch's microcontroller, in order to generate watch setting parameters, and a watch configuration step according to the watch's microcontroller, based on the generated setting parameters.

The invention provides an electronic clock travel time precision regulation and control system, and relates to the technical field of data processing, and the system is used for collecting a temperature value, a voltage value and accumulated operation time, counting the number of pulses output by a crystal oscillator in unit time, obtaining state data and basic frequency data, calculating frequency deviation values in different periods, and adjusting the travel time precision of the electronic clock. Performing window sliding, calculating drift trend quantity values in different windows, calculating a difference value of different states between adjacent periods to obtain a state variable quantity, combining the state variable quantity with a frequency drift trend sequence for analysis to obtain a state response coefficient set, and identifying effective disturbance components in state change vectors of different periods; and calculating pulse compensation amounts in different periods to obtain pulse compensation data, correcting the timing pulse to obtain a pulse output sequence, and updating the time of the electronic clock according to the pulse output sequence. According to the invention, the pulse signal of the electronic clock can be regulated and controlled, and accurate travel time is ensured.

The application discloses a power grid time frequency real-time correction method and system based on dynamic monitoring, comprising: capturing a continuous timestamp sequence from a power grid node, obtaining a time deviation signal; using an adaptive dispersion compensation algorithm to process the time deviation signal, obtaining a restored time frequency characteristic; through feature comparison, obtaining a parasitic interference index from the restored time frequency characteristic; if the parasitic interference index exceeds a preset interference threshold, processing the restored time frequency characteristic through a parasitic component suppression filter to obtain pure main frequency data; according to the comparison between the pure main frequency data and the time deviation signal, obtaining an adjustment instruction sequence; and according to the adjustment instruction sequence, performing real-time correction on the power grid time frequency. Through the fusion of multi-stage sampling, dispersion compensation and closed-loop control, the application significantly improves the power grid time synchronization accuracy and stability, effectively suppresses parasitic interference, and realizes real-time correction.

An analog electronic timepiece (1), including: a hand (61 to 65) which is provided to be rotatable; and a processor (41) which makes the hand perform at least one of an acceleration operation and a deceleration operation as a speed change operation when the hand is made to perform a fast forward movement, the acceleration operation being an operation of gradually increasing a fast forward speed of the hand from a stopped state when the fast forward movement is started, and the deceleration operation being an operation of gradually decreasing the fast forward speed until the hand comes into the stopped state when the fast forward movement is ended.

The application discloses a clock calibration method, electronic equipment and a readable storage medium, applied to the technical field of clock calibration, and comprises the following steps: acquiring a coarse adjustment calibration coefficient of a to-be-calibrated target at a basic temperature calibration point, wherein the basic temperature calibration point comprises a basic normal-temperature calibration point and a basic abnormal-temperature calibration point; determining a coarse adjustment calibration curve of the to-be-calibrated target according to a corresponding relationship between a real-time temperature of the to-be-calibrated target and the coarse adjustment calibration coefficient, wherein the coarse adjustment calibration curve is used for coarse adjustment compensation of the to-be-calibrated target; acquiring a fine adjustment calibration coefficient of the to-be-calibrated target at a fine adjustment temperature calibration point; fusing the fine adjustment calibration coefficient and the coarse adjustment calibration curve according to the real-time temperature of the to-be-calibrated target, so as to obtain a fine adjustment calibration curve of the to-be-calibrated target, wherein the fine adjustment calibration curve is used for fine adjustment compensation of the to-be-calibrated target; and calibrating the to-be-calibrated target according to the fine adjustment calibration curve. The application solves the technical problem of low clock calibration precision of an electric energy meter in the prior art.

To enable providing a highly sustainable time stamp service at reduced use cost.SOLUTION: In a time stamp issuing system 1, a time stamp station 10 includes an intra-station time server 12, a time stamp server 13 and a time stamp clock 14. The intra-station time server 12 acquires standard time information from a national time standard organization 3 to synchronize first time information of a first clock 12f of itself, with the standard time information. The time stamp clock 14 indicates time-stamp time information to be used for the generation of a time stamp token 60. The time stamp server 13 synchronizes second time information of a second clock 13f of itself, with the first time information, and synchronizes the time-stamp time information of the time stamp clock 14, with the second time information, so as to generate the time stamp token 60 based on a hash value 61 of an electronic file 50 and the time-stamp time information.SELECTED DRAWING: Figure 4

The utility model discloses a self-calibration timing circuit, a timing device and an ignition device, and relates to the field of timing, the self-calibration timing circuit comprises a calibration circuit, an output end is connected with a clock end of a calibrated circuit, and the calibration circuit is used for outputting a clock signal to the calibrated circuit; the output end of the calibrated circuit is connected with the input end of the ignition device, and the calibrated circuit is used for timing based on the clock signal; and the ignition device is used for outputting detonation when the ignition signal is received through the input end of the ignition device at the end of timing. The calibration circuit and the calibrated circuit are separately arranged, the calibration circuit does not participate in actual control, the high overload circuit is prevented from influencing the timing accuracy, the calibration circuit outputs the time to the calibrated circuit, the ignition device is further controlled, and the timing can be more accurate.

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.

A system for adjusting a clock signal may include a timing system that receives a reference timing signal having a reference frequency, a plurality of sensors to generate sensor data, an oscillator to generate a clock signal, and one or more processors. The one or more processors may execute instructions stored in memory to train a machine learning model to predict frequency drift of the clock signal based on the sensor data and frequency drifts between an output frequency of the clock signal and the reference frequency. The sensor data may be utilized as training data, and the frequency drifts may be utilized as target data. The one or more processors may further execute to adjust the clock signal to compensate for frequency drift based on a prediction from the model. Other aspects are also described and claimed.

To provide a radio-controlled clock repeater that can prevent an error when acquiring time information on the basis of the voltage waveform of a commercial AC power supply.SOLUTION: A host machine 1 comprises a host machine RTC 3 that counts time, and a host machine controller 8 that is connected with the host machine RTC 3. The host machine controller 8 calculates a count value A0 that is the difference between a first time value measured on the basis of the periodicity of a voltage waveform from a commercial AC power supply for every predetermined time T0 and a second time value measured by using the host machine RTC 3, calculates the average value of the plurality of count values A0 as a reference count value A1, corrects the time counted by the host machine RTC 3 so as to reduce a difference value A2 that is the difference between the count values A0 and the reference count value A1, and generates a time information signal on the basis of the time counted by the host machine RTC 3.SELECTED DRAWING: Figure 10

A method for detecting time rollover is disclosed. The method can include receiving time data comprising week data and second data, and processing the time data to generate a first date. The method can include generating a second date based on the first date and an offset value, and obtaining a network date when the second date is earlier than a baseline date. The method can include assigning the network date as the baseline date, and processing the network date and the first date to determine an updated offset value. The method can include storing the updated offset value as the offset value, and determining a system date based on the network date.

The invention provides an acquisition terminal clock precision calibration method and device and a medium, and relates to the technical field of clock calibration, and the method comprises the following steps: obtaining terminal temperature data and clock error data at each temperature; through a DBSCAN clustering algorithm, noise points are calculated, recognized and removed based on the optimized Manhattan distance, and an effective clock error value corresponding to each temperature is obtained; the cloud server trains a polynomial regression type clock error prediction model and a calibration value prediction model in stages, converts the models into rknn formats and sends the rknn formats to the terminal; and the terminal predicts a clock error and a corresponding calibration value based on the current temperature through NPU acceleration model reasoning so as to calibrate the clock chip. According to the invention, temperature change can be responded in real time, the clock calibration value matched with the current temperature is dynamically output, and the clock calibration precision is effectively improved.

This application discloses a bell-ringing system and time synchronization method based on multi-source redundant time synchronization, specifically relating to the field of bell-ringing control technology. The bell-ringing system includes a multi-source access module, an intelligent arbitration switching module, a local high-stability timekeeping module, and a bell-ringing control module. Through a multi-source redundant time synchronization fusion design, it solves the vulnerability of traditional bell-ringing systems relying on a single signal source, achieving the core goal of "service continuity." The intelligent arbitration switching logic and configurable priority strategy enable the system to adapt to different scenario requirements. The local high-stability timekeeping module further improves reliability under extreme conditions. The product layering design can meet the cost and performance needs of different users, significantly enhancing market competitiveness. Simultaneously, the bell-ringing system is integrated with the time and frequency domain to achieve automatic time synchronization without manual calibration, improving the accuracy and intelligence of the bell-ringing process.

The invention discloses a method for realizing daily timing error correction and selection of an electric energy meter, relates to the technical field of electric energy meter metering, and realizes online and real-time intelligent judgment on whether the electric energy meter has an adjustment value or not by constructing a dynamic screening mechanism of prediction, verification and decision. A theoretical reference is established according to a standard frequency-temperature curve of a crystal oscillator, at the initial stage of low-temperature adjustment, actual measurement error data of first several temperature points are only utilized to be fitted with the theoretical curve, an initial error prediction range is rapidly calculated, the prediction range is dynamically verified and adaptively updated along with data input of subsequent test points, and the error prediction range is accurately and accurately adjusted. When new data falls within the range, it is confirmed that the characteristics of the electric energy meter are stable, and when the new data continuously exceed the range, the electric energy meter is judged and removed in advance, so that the electric energy meter without good temperature consistency can be recognized and removed in time in the early stage of the adjustment process, and follow-up invalid high-temperature testing and compensation value calculation operation are avoided.

Disclosed is an electronic timepiece (100) including: a first light detector (5) and a second light detector (6) that detect external light; a first mechanism (37) that limits an amount of the external light detected by the first light detector; and a second mechanism (21) that limits an amount of the external light detected by the second light detector and has a different structure from a structure of the first mechanism.

In a clock processing device (10), a one-way delay difference calculation unit (26) calculates a first one-way delay difference and a second one-way delay difference. An RTT acquisition unit (28) acquires information to calculate an RTT. A delay estimation unit (32) estimates a first one-way delay. A one-way delay range update unit (30) obtains a first one-way delay difference and a second one-way delay difference, and updates a valid range of the first one-way delay, the valid range being determined by using the first one-way delay difference and the second one-way delay difference. A determination unit (34) determines whether or not the estimated first one-way delay is consistent using the valid range of the first one-way delay.