17 results about "Pulse calibration" patented technology

An optical receiver includes a plurality of photodetectors, a shared memory, and a pulse calibration processing unit communicatively coupled to the shared memory. The optical receiver also includes a hardware accelerator module configured to accept input waveforms from the plurality of photodetectors and compare an amplitude of the respective input waveforms with a predetermined threshold. Based on the comparison, the hardware accelerator module could determine subsets of the input waveforms and determine information indicative of characteristic aspects of the subsets of the input waveforms. The optical receiver is additionally operable to store the determined information in the shared memory and trigger an interrupt for the pulse calibration processing unit to initiate a pulse calibration process on the determined information.

The invention relates to a multi-module clock domain unification scheme based on second pulse calibration. The multi-module clock domain unification scheme comprises the steps that at a master control module end, an initial timestamp and a configuration instruction are issued to each slave module; generating a PPS signal meeting the precision requirement, and synchronously distributing the PPS signal to each slave module; at a slave module end, receiving the issued initial timestamp to configure a local clock; and receiving the PPS signal, and when the PPS signal is received, starting clock synchronization operation by using a master-slave module clock calibration algorithm to perform clock synchronization operation between the master module and the slave module.

The invention relates to the technical field of peroxide raw material quality monitoring, and discloses a peroxide raw material quality intelligent management and control system which comprises the steps that a differential heat flow sensing unit continuously measures the temperature difference gradient of a raw material barrel wall and ambient air, and a posture sensing unit monitors the physical motion state; and the edge processing unit performs time sequence integration on the temperature difference gradient when the raw material barrel is static to calculate a degradation degree value, and triggers early warning when the degradation degree value exceeds a threshold value, so that continuous quantitative tracking of the degradation process of the peroxide raw material is realized, and limitation of traditional discrete detection is avoided; measurement authenticity is guaranteed through a dual mechanism of motion state identification and signal filtering, long-term monitoring reliability is guaranteed in combination with a spontaneous heating pulse calibration technology, and a brand new process monitoring mode is provided for chemical storage safety.

The present invention relates to the technical field of peroxide raw material quality monitoring, and discloses an intelligent peroxide raw material quality control system. The system comprises: a differential heat flow sensing unit for continuously measuring the temperature gradient between the raw material barrel wall and the ambient air; a posture sensing unit for monitoring the physical motion state; an edge processing unit for performing a time-series integration of the temperature gradient when the raw material barrel is stationary to calculate a degradation degree value, and triggering an early warning when a threshold is exceeded. The present invention achieves continuous quantitative tracking of the peroxide raw material degradation process, avoiding the limitations of traditional discrete detection, ensuring measurement authenticity through the dual mechanisms of motion state recognition and signal filtering, and ensuring long-term monitoring reliability in combination with self-heating pulse calibration technology, thereby providing a new process monitoring method for chemical storage safety.

The application relates to a pulse calibration method, device and system of a single three-phase electric energy standard meter, the method comprises the following steps: obtaining a total measurement pulse period of a detected electric energy standard meter and a total standard pulse period of a reference electric energy standard meter; the total measurement pulse period is obtained by processing an electric measurement value according to a pulse conversion algorithm; the total standard pulse period is obtained by processing an electric standard value according to the pulse conversion algorithm; obtaining an error coefficient according to the total measurement pulse period and the total standard pulse period; and calibrating an electric parameter of the detected electric energy standard meter according to the error coefficient, so as to realize accurate calibration of the single three-phase electric energy standard meter. The application optimizes the error coefficient, calibrates the electric parameter of the detected electric energy standard meter according to the obtained error coefficient, can accurately reflect the relationship between the measurement value and the standard value, reduces the calibration error of the single three-phase electric energy standard meter, and thus improves the calibration accuracy of the single three-phase electric energy standard meter.

The invention relates to the technical field of digital-analog hybrid integrated circuit design, and particularly provides an anti-radiation low-jitter injection-locked phase-locked loop based on a threshold filtering technology, which comprises a pulse calibration circuit, a pulse injection unit and an injection-locked phase-locked loop, the pulse injection unit can generate an injection signal and a threshold signal according to a pulse calibration signal output by the pulse calibration circuit and a feedback signal output by the injection-locked phase-locked loop, so that whether the injection signal is output to the injection-locked phase-locked loop or not is judged according to the threshold signal. Reinforcement is performed based on an injection locked phase-locked loop structure, the pulse injection unit is provided, the threshold signal is generated while the injection signal is generated, and the conduction state of the injection path of the injection signal is controlled according to the threshold signal, so that the probability of wrong injection is greatly reduced, most injection errors are filtered from the source, and the injection accuracy is improved. Therefore, the jitter of the phase-locked loop is reduced, and the anti-radiation performance is improved.

The invention relates to the technical field of filtering processing, in particular to a double-optical-comb photoacoustic signal self-adaptive filtering system which comprises a pulse calibration module, a phase calculation module, a trend recognition module, a filtering control module and a result output module. According to the invention, accurate identification of periodic components is realized by acquiring main pulse time positioning information and extracting a signal symmetric section, and dynamic monitoring of signal structure stability is realized through phase angle calculation and sudden change identification. A state label is judged according to the change trend of a phase difference value, an updating rate factor is set to achieve accurate control over the filter weight adjusting rhythm, filter weight instruction output is controlled through logic judgment based on the historical step length state, output continuity is verified, and the adaptability and stability of the filtering process are effectively improved. Under a complex background, the holding capacity of target signal features is enhanced, the influence of non-stationary noise is suppressed, and the overall signal-to-noise ratio and the reliability of the filter are improved.

The invention discloses an anti-noise image recognition method and system, and relates to the technical field of neuromorphic calculation, image recognition and brain-like hardware control, and the system comprises an input module, a noise estimation module, a controller module, a synaptic array module, a read-out / classification module, a near-infrared erasure reset module and a one-way electric rewrite-in calibration module. The synaptic array has the characteristics of electrical stimulation one-way programming-near-infrared light erasure reset; according to the method, the noise density of an input image is calculated, and a result and confidence are obtained through initial reasoning of a synaptic array; when the noise density is larger than or equal to a preset noise density threshold value or the confidence coefficient is smaller than or equal to a preset confidence coefficient threshold value, triggering a near-infrared light erasing reset array, applying single-polarity electric pulse calibration in a dark state, and then reasoning output, a selectable grading strategy and a voting mechanism; according to the scheme, closed-loop reset calibration is formed, recognition robustness and long-term stability under medium and high noise are improved, end side energy consumption is reduced, and the method is suitable for a low-power-consumption visual recognition scene.

The application discloses a large-current constant current source control method based on a reinforcement learning algorithm, and belongs to the technical field of intelligent control of power electronic devices. In view of the problems of low control precision, slow dynamic response and poor load adaptability of an existing large-current constant current source, the method initializes a Q table through pulse calibration data to reduce invalid exploration of reinforcement learning; an improved reward and punishment return function and a load feedforward compensation mechanism are introduced to realize load disturbance prediction and early inhibition; an epsilon-greedy method is used to optimize PID parameters and the optimal parameters are selected through comprehensive scoring; and a double-current loop topology is constructed to realize fast response by using transformer leakage inductance to replace LC filtering. The application makes the current precision of the constant current source greater than or equal to 98%, the total harmonic distortion less than or equal to 1%, can adapt to a wide range of loads, and the stability is significantly improved, and is suitable for high-precision large-current scenes such as industrial electrolysis, new energy battery testing and high-power motor driving.

The invention discloses a large-current constant-current source control method based on a reinforcement learning algorithm, belongs to the technical field of intelligent control of power electronic devices, and aims to solve the problems that an existing large-current constant-current source is low in control precision, slow in dynamic response and poor in load adaptability, the method initializes a Q table through pulse calibration data so as to reduce invalid exploration of reinforcement learning; a reward and punishment return function is improved, and a load feed-forward compensation mechanism is introduced, so that load disturbance pre-judgment and advanced suppression are realized; an epsilon-greedy method is adopted to optimize PID parameters, and the optimal PID parameters are screened through comprehensive scores; a double-current-loop topology is constructed, and transformer leakage inductance is used for replacing LC filtering to achieve quick response. The current precision of the constant current source is larger than or equal to 98%, the total harmonic distortion is smaller than or equal to 1%, the method can adapt to wide-range loads, stability is remarkably improved, and the method is suitable for industrial electrolysis, new energy battery testing, high-power motor driving and other high-precision large-current scenes.

The present application relates to the technical fields of digital-analog hybrid integrated circuit design, and specifically provides an anti-radiation low-jitter injection-locked phase-locked loop based on threshold filtering technology, comprising a pulse calibration circuit, a pulse injection unit and an injection-locked phase-locked loop; the pulse injection unit generates an injection signal and a threshold signal according to a pulse calibration signal output by the pulse calibration circuit and a feedback signal output by the injection-locked phase-locked loop, so as to judge whether the injection signal is output to the injection-locked phase-locked loop according to the threshold signal. The present application is reinforced based on the structure and architecture of the injection-locked phase-locked loop, and proposes the pulse injection unit, which generates the injection signal and the threshold signal at the same time, controls the conduction state of the injection path of the injection signal according to the threshold signal, greatly reduces the probability of error injection, filters most of the injection errors from the source, and thus reduces the phase-locked loop jitter while improving the anti-radiation performance.

The utility model discloses a kind of pulse power source calibration devices, comprising: calibration unit, it includes pulse calibrator, the two sides of the pulse calibrator are all set with U-shaped receiving slot, support unit, it includes two U-shaped handles, the two ends of each U-shaped handle are fixedly connected with the rotating shaft that passes through U-shaped handle, each rotating shaft is rotatably connected in corresponding receiving slot, the gap for deflection is left between the receiving slot and U-shaped handle, cylindrical groove is set on the transverse holding section of U-shaped handle, anti-skid sleeve is fixedly sleeved in the cylindrical groove of U-shaped handle.The utility model carries pulse calibrator, U-shaped handle can be deflected and unfolded from receiving slot outward, to facilitate labor-saving handling, when not needing to carry, U-shaped handle can be deflected inward and received to receiving slot, so that pulse calibrator has no protruding structure exposed, thereby reducing the occupied volume of pulse calibrator in limited space such as cabinet.

This invention relates to the field of filtering technology, specifically to a dual-comb photoacoustic signal adaptive filtering system, comprising a pulse calibration module, a phase calculation module, a trend recognition module, a filtering control module, and a result output module. In this invention, accurate identification of periodic components is achieved by acquiring the timing information of the main pulse and extracting symmetrical segments of the signal; dynamic monitoring of signal structural stability is achieved through phase angle calculation and abrupt change recognition; precise control of the filter weight adjustment rhythm is achieved by determining the status label based on the changing trend of the phase difference and setting an update rate factor; and the filter weight command output is controlled by logical judgment based on historical step size states, and the output continuity is verified, effectively improving the adaptability and stability of the filtering process. In complex backgrounds, it enhances the ability to preserve the characteristics of the target signal and suppresses the influence of non-stationary noise, thereby improving the overall signal-to-noise ratio and the reliability of the filter.

The embodiment of the present invention discloses a pulse number self-correction control device, method and fiber laser, which includes a signal output circuit, a signal delay circuit, an acousto-optic modulation driver and a coupling pulse circuit. The acousto-optic modulation driver is used to select an optical pulse signal from the seed optical signal output by the signal output circuit; the coupling pulse circuit is used to convert the optical pulse signal into an electrical pulse signal; the signal delay circuit is used to identify the pulse number of the electrical pulse signal and adjust the delay time of the acousto-optic drive signal that drives the acousto-optic modulation driver according to the pulse number, so that the pulse number of the optical pulse signal selected by the acousto-optic modulation driver is consistent with the preset pulse number. The embodiment of the present invention uses the optical pulse signal selected by the acousto-optic modulation driver as the effect feedback for adjusting the acousto-optic drive signal, thereby adjusting the delay of the acousto-optic drive signal, realizing self-calibration of the frequency-selective pulse, and improving the reliability and accuracy of the frequency-selective pulse calibration.

A quantum noise mitigation system can comprise a memory that stores, and a processor that executes, computer executable components comprising a pulse calibration component that, for controlling execution of a quantum gate of a quantum circuit, calibrates an echo extender tone parameter for a set of echo extender tones of an echo pulse sequence, wherein the pulse calibration component inserts the set of echo extender tones into the echo pulse sequence of an initial pulse sequence resulting in generation of a modified pulse sequence for use in controlling the execution of the quantum gate, and a parameterizing component that parameterizes the set of echo extender tones using a scalable stretch factor for stretching respective durations of the set of echo extender tones.

The invention discloses a partial discharge detector for a cable, relates to the technical field of electrical engineering, and realizes accurate anti-interference acquisition and on-line self-calibration of sensing signals in cable partial discharge detection by virtue of the synergistic effect of a rotary electromagnetic shielding cover assembly and a mechanical pulse calibration assembly. Different from a traditional lagging low-efficiency scheme depending on electronic filtering and external calibration, partial discharge detection is more accurate and reliable, firstly, a rotary electromagnetic shielding cover assembly is utilized, through the mechanical design of synchronous opening and closing of a first shielding cover, a second shielding cover and a phase, asynchronous electromagnetic noise can be physically isolated through mechanical rotation, and partial discharge detection is more accurate and reliable; the problem of signal distortion of traditional electronic filtering is thoroughly solved, power frequency voltage phases can be dynamically adapted, synchronous discharge pulses can be accurately captured, and the measurement distortion risk and the discharge capacity estimation deviation of weak discharge signals are greatly reduced. The bottleneck that a traditional electronic calibration device is interfered by the environment is broken through.

The present application discloses a synchronous self-calibration cable distributed partial discharge detection calibration and positioning device and method, which relates to the technical field of power system cable insulation status detection. The device includes: a host computer and at least two acquisition and detection systems; for any acquisition and detection system: a detection module receives a control signal and outputs a synchronous calibration signal; a pulse calibration unit excites a calibration pulse signal to the cable shield grounding wire according to the synchronous calibration signal, and uses the obtained excitation pulse signal as a time reference signal; the detection module determines the pulse time difference based on the time reference signal; the host computer calibrates adjacent acquisition and detection systems according to the pulse time difference, and performs waveform comparison analysis on the collected data obtained after calibration to obtain analysis results; the analysis results are used to achieve detection and positioning based on waveform delay. The present application aims to achieve synchronous function calibration and partial discharge detection and positioning of cable distributed partial discharge detection.