14results about "Time pulses" 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 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.

Disclosed is a quartz oscillator system comprising: a quartz oscillator comprising a quartz crystal and an oscillator circuit whose frequency is based on a resonant frequency of the quartz crystal; a monitoring module for monitoring an output frequency of the quartz oscillator; a control system external to the quartz oscillator, and configured to compare the output frequency with a setpoint frequency, and apply an adjustment signal to an electronic circuit of the quartz oscillator to adjust a frequency of the quartz oscillator based on the comparison with the reference frequency.

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 invention discloses a method and system for suppressing non-pulse noise to accurately measure pulse arrival time, and the method comprises the steps: S1, generating pulsar simulation parameters which comprise a rotation period P, a flow density S1250 and a pulse arrival phase delay standard deviation sigma delta p; s2, constructing a pulsar standard contour Q (x), and generating based on a pulse contour type Ptype, a sub-pulse number and a sub-pulse contour shape; s3, simulating multi-epoch observation data, injecting noise, adding phase delay delta p, and generating an average contour q (x); s4, judging a pulse region: positioning a candidate pulse region through baseline identification, and screening a final pulse region according to a contour type; s5, calculating a phase difference delta x between the standard contour and the average contour by using a phase gradient method; and S6, comparing a difference value between the phase difference delta x and the analog phase delay delta p, and verifying whether higher timing accuracy is obtained by removing the noise in the non-pulse region or not. The pulsar timing precision is remarkably improved by reducing noise interference in a non-pulse area, and the pulsar timing method is suitable for a high-precision scientific target.

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.

Disclosed is an aerosol generating device including a real-time clock (RTC) configured to output time information measured from a reference time; a non-volatile memory; and a processor configured to: store the time information in the non-volatile memory when a preset operation is performed, when the RTC is initialized, restore the time information by correcting the reference time based on an initial reference time and an accumulated elapsed time from the initial reference time, and when the preset operation is performed again, store updated time information reflecting an elapsed time from the corrected reference time in the non-volatile memory.

A radio-controlled timepiece includes a first oscillating unit configured to oscillate at a first frequency and output a clock signal, a receiving unit including a second oscillating unit and configured to receive radio waves including time information, frequency of the second oscillating unit being less temperature-dependent than that of the first oscillating unit and the second oscillating unit being configured to oscillate at a second frequency and output a clock signal, a control unit configured to calculate temperature compensation data for the first oscillating unit based on an oscillation frequency of the first oscillating unit obtained using, as a reference, the clock signal output from the second oscillating unit and on the temperature data acquired by a temperature acquiring unit, and a storage unit configured to store the temperature compensation data. The control unit performs temperature compensation for the first oscillating unit based on the temperature compensation data and the temperature data.

Clock frequency monitoring circuit (200) which features: at least one temperature-related data source configured to provide temperature-related data associated with an electronic arrangement (202), which data includes a measured temperature; a clock generator (210) which has an operating frequency; a frequency monitoring system (414) configured to: to store a large number of clock frequency limits corresponding to a large number of different temperatures; at least on the basis of the measured temperature, to select one of the stored clock frequency limits that is assigned to the electronic arrangement (202); to determine the operating frequency of the clock generator (210); to compare the specified operating frequency of the clock generator (210) with the selected clock frequency limit; and if the operating frequency of the clock generator (210) exceeds the selected clock frequency limit, to generate a digital correction signal, wherein the corrective action signal serves to trigger a corrective action associated with the electronic arrangement (202) or a related arrangement, wherein generating the corrective action signal includes generating an interrupt signal for controlling a program application.

The present application relates to the technical field of electronic timer calibration, and particularly relates to a kind of electric meter clock intelligent calibration method and system based on multi-modal fusion, method includes: the present application obtains electric meter clock voltage and environmental data first, pre-processing generates transient disturbance sequence and steady voltage time sequence, then according to this respectively calculate voltage chronic influence factor, voltage acute influence factor and environmental acceleration factor;By the regression of the same kind electric meter historical data to determine the influence coefficient of each factor, the total life loss is fused and calculated, and the dynamic correction period of adaptive individual damage is iteratively generated;Finally, a reference group of the same batch and the same environment electric meter is constructed, similar clusters are screened by clustering, and the time consistency after correction is compared to determine the unconventional anomaly and output the targeted calibration strategy.The present application quantifies multi-dimensional error factors by multi-modal fusion, constructs a differentiated model and iteratively generates a dynamic correction period, solves the defects of traditional fixed cycle calibration, and improves the long-term timing accuracy and stability of electric meter.

The invention discloses a data acquisition time synchronization method and system for a single-photon laser radar. The method comprises the following steps: constructing a high-order counter and a low-order interpolator in a field programmable gate array based on a high-stability constant-temperature crystal oscillator to jointly generate a system timestamp; a reference timestamp is generated when the laser dominant wave and echo signal input passes through the time-to-digital conversion module; recording a system timestamp in the whole process of requesting and returning peripheral data, and synchronously acquiring communication delay and an environment state; a delay compensation and edge prediction mechanism is introduced into time synchronization logic, and peripheral time is mapped to a laser reference time system to be fused with ranging data; when a second pulse signal generated by a GNSS is received, a drift model is established for periodic calibration, and when the signal fails, a historical drift model is automatically called for compensation. According to the invention, the acquisition time of the multi-source heterogeneous data in the single-photon laser radar can be synchronously aligned to a unified time axis, and a unified time reference is provided for subsequent processing.

To provide a real-time clock module capable of reducing power consumption of a memory device that writes time data.SOLUTION: A real-time clock module connected to a memory device is provided with: a clock circuit that performs time measurement and generates time data; a first interface circuit that functions as a master interface for the memory device; a power supply circuit that supplies a power supply voltage to the memory device; and a control circuit that writes target time data corresponding to at least some time digits of the time data in the memory device through the first interface after starting the supply of the power supply voltage to the memory device, and stops supplying the power supply voltage after writing the target time data.SELECTED DRAWING: Figure 2

A main plate at which a watch component is disposed, a circuit board including a regulating pattern, a regulating switch disposed contactably with the circuit board, and a holding member disposed on a side opposite to the circuit board with respect to the regulating switch are included, the regulating switch includes a guide pin fixed to the main plate, a lever body including an opening portion into which the guide pin is inserted and a contact portion that contacts the regulating pattern, and a coil spring including an opening portion into which the guide pin is inserted and presses the lever body toward the circuit board, and the holding member holds the coil spring sandwiched between the holding member and the lever body.

The application discloses a calibration system and method for real-time clock calibration of power utilization management equipment, wherein the power utilization management equipment comprises concentrators and electric energy meters in a power utilization information system; a controller in the system is connected with a high-low temperature box, a plurality of first temperature sensors, at least one daily time calibration instrument, an ambient temperature adjusting device, at least one second temperature sensor and a first multi-way selection device; and the controller can provide stable calibration ambient temperature and ambient temperature for the power utilization management equipment and the daily time calibration instrument, effectively ensures the reliability of the calibration process, and provides environmental protection for high-precision calibration of the real-time clock of the power utilization management equipment; by ensuring the stability of the calibration ambient temperature, reliable real-time data can be provided for a compensation curve for time domain segmentation interpolation compensation of the power utilization management equipment, and then the accuracy of the compensation curve for time domain segmentation interpolation compensation can be greatly improved while effectively improving the calibration efficiency of the power utilization management equipment.