26 results about "Phase state" patented technology

The invention relates to the technical field of circuit breaker detection, in particular to a phase state detection display method and device of a double-contact circuit breaker. The method comprises the following steps: firstly, acquiring frequency data of mechanical actions, temperature data and current waveforms during opening and closing; further obtaining a mechanical wear coefficient according to the total frequency of the mechanical actions and the frequency of the recent mechanical actions; further analyzing the current waveform in the latest opening and closing process to obtain the current wave crest performance abnormality and the current fluctuation abnormality; the abnormal performance of the heating rate and the steady-state temperature is further analyzed, and the current temperature abnormal degree is obtained; and finally, detecting and displaying the state of the double-contact circuit breaker in combination with the current mechanical wear coefficient, the wave crest performance abnormality, the current fluctuation abnormality and the temperature abnormality. The gradual change degradation condition of the double-contact circuit breaker is comprehensively predicted from multiple angles of mechanical wear, current waveform abnormal performance and temperature abnormal performance, and the potential abnormal fault problem of the double-contact circuit breaker is identified in time.

A method for measuring a time-of-flight interval in a depth sensing system includes generating a coarse time count using a global clock signal shared across a plurality of pixels and external to the sensor array, wherein the coarse time count provides the most significant bits of the time-of-flight interval free of inter-pixel process variation; generating an intermediate time count within a pixel using a local ring oscillator based on completed oscillation cycles during a measurement interval; generating a fine time residual within the pixel based on at least one phase state of the ring oscillator, wherein the fine time residual provides the least significant bits; and deriving the time-of-flight interval from a combination of the coarse time count, the intermediate time count, and the fine time residual.

This invention discloses a highly interactive SIP honeypot system based on phased interactive control, comprising: a message receiving module for receiving external SIP requests; a SIP interactive control module supporting multiple interaction modes and generating corresponding responses according to the current configuration mode; a session state machine module for maintaining the SIP session protocol state; a phase switching control module for maintaining phase state variables and dynamically selecting the interaction mode according to preset trigger conditions; and a recording and statistics module for recording request behavior characteristics, interaction logs, and switching logs. This invention achieves runtime schedulable management of interactive capabilities, enabling low-resource-consumption recording of scanning behavior and deep trapping of advanced attacks and collection of complete attack chain data, providing reliable data support for the detection of encrypted malicious traffic.

The application discloses a phase shifter test and control word optimization method based on automatic test, which comprises the following steps: obtaining a control word table according to the corresponding normalized amplitude and phase information of the I / Q control word full space combination of a to-be-tested phase shifter; using an automatic test device to scan and test the control word table state by state to obtain the amplitude and phase information of the gain; taking the test result of the reference state control word as a benchmark to calculate the relative phase of each scanning state in a target frequency band, and performing phase winding processing to establish a relative phase data table; according to the amplitude and relative phase data of each scanning state in the target working frequency band, sequentially performing in-band gain flatness screening and center frequency point gain consistency screening to construct a candidate optimization set, searching for the optimized control word corresponding to each ideal target phase, and forming an optimized control word table corresponding to each phase state of the phase shifter. The application adopts a brand-new design strategy and efficiently and accurately realizes the automatic calibration and optimization of the multi-state control word of the phase shifter.

The application provides a full differential passive digital controlled phase shifter and a communication device, and relates to the technical field of integrated circuits.The full differential passive digital controlled phase shifter comprises a logic controller and a plurality of phase shift units connected with the logic controller; wherein the plurality of phase shift units with different phase offsets are connected in sequence; each phase shift unit comprises a MOS tube and a phase shift device; wherein the control end of the MOS tube is connected with the logic controller; the logic controller is used for generating a switch signal corresponding to each phase shift unit; and the phase shift unit is used for switching the phase shift unit between a reference state and a phase shift state in response to the switch signal to generate a corresponding phase shift amount. The full differential passive digital controlled phase shifter and the communication device provided by the application can configure the phase shift amount, thereby realizing the required phase shift precision; and by optimizing and combining different phase shift units, a better parasitic amplitude modulation can be obtained, which is also helpful to reduce the insertion loss, thereby meeting the design and use requirements of the phase shifter.

The present invention belongs to the field of communication technology, specifically a 3-bit phase reconfigurable metasurface. The metasurface of the present invention includes a two-dimensional array composed of metasurface units and a DC bias network composed of bias lines of each metasurface unit; the unit is composed of three metal layers and two dielectric layers, the top layer is used to receive and radiate electromagnetic waves, the middle layer serves as a ground layer, and the bottom layer serves as a phase shifter to realize the 3-bit reconfigurable function; the phase shifter is divided into three parts, which respectively realize 45°, 90°, and 180° phase shift functions, and 8 phase states are realized by combining the three parts; the three parts are respectively controlled by a DC bias line, and the DC bias line of each unit constitutes a bias network, and the independent regulation of each unit is realized by loading the DC control voltage from an external field FPGA to the phase shifter. By changing the phase array coding of the metasurface, the invisible cloak and RCS reduction functions can be realized. This metasurface has the characteristics of high precision, low loss and multi-function.

Logic verification of superconducting electronic circuits is implemented as follows. The superconducting electronic circuit is supposed to implement a desired logic function. A description of the circuit includes a plurality of nodes of the circuit, including one or more input nodes and one or more output nodes. Operation of the superconducting electronic circuit is simulated, including probing signal values at the nodes. These signal values are converted to state transitions of the quantum phase at the nodes (phase state transitions). The phase state transitions are related to the logic values represented by the circuit. The phase state transitions are compared with the desired phase state transitions for the desired logic function. Based on this comparison, it is determined whether the superconducting electronic circuit implements the desired logic function.

The invention discloses an electromagnetic wave phase-polarization decoupling control system, belongs to the technical field of optical communication and quantum optics, and is suitable for equipment such as a quantum communication receiver and a laser radar. The invention aims to solve the problems of high bit error rate (greater than 8%) caused by phase symbol chaos and crosstalk (crosstalk coefficient is only-25dB) caused by polarization and phase coupling in the prior art. The system realizes decoupling through two core mechanisms: one is a phase expression forced unification module which uniformly converts an input electromagnetic wave phase into a standard form e (i (kx omegat)), comprises a phase detector, a converter and a calibration unit, and eliminates symbol chaos; and the Hilbert space tensor product regulation and control hardware realizes independent regulation and control of a polarization state and a phase state through a polarization liquid crystal array, a phase modulator and a tensor product operation unit based on a quantum state tensor product principle (psi gt, = [polarization state] [phase state]), and cuts off a physical coupling path. The method has the beneficial effects that the phase symbol chaos rate is reduced to 0%, and the crosstalk coefficient is increased to-45dB; when the method is applied to quantum communication, the bit error rate is less than or equal to 1.2%, and the key distribution rate is doubled; when the method is applied to the laser radar, the ranging error is less than or equal to + / -1cm, and the haze environment target recognition rate is improved from 60% to 85%. According to the invention, efficient decoupling of phase and polarization is realized, and the performance of optical communication and quantum optical equipment is remarkably improved.

The embodiment of the invention provides a synchronization control method, system, device and equipment. The method comprises the following steps: firstly, acquiring phase state information and a frequency measurement value of a target nuclear system; determining synchronization deviation information of the target nuclear system according to the phase state information and the frequency measurement value; then, synchronous control information is generated according to the synchronous deviation information; and finally, sending the synchronization control information to the target core system, so that the target core system eliminates the synchronization deviation according to the synchronization control information. Through the method, efficient and stable synchronization control can be kept in a complex environment, and the universality, reliability and synchronization precision of the system are remarkably improved.

Embodiments of the present application provide a quantum phase state simulation processing method, device, equipment and medium, the method comprises: obtaining quantum communication performance data and an adjustment factor; determining a target quantum phase state according to the quantum communication performance data and the adjustment factor; the phase state represents a specific angle for preparing a quantum state; determining a target projection operator according to the quantum communication performance data; measuring the target quantum phase state according to the target projection operator, through the selection of the phase state for dynamically optimizing quantum state service and the phase state for measurement, the probability of measurement failure and the bit error rate are effectively reduced, and the performance of the system is improved.

Provided herein are Ising machines having a resonant input mesh driven by a pump signal, a resonant output mesh coupled to the input mesh through a nonlinear component to form a parametric frequency divider (PFD), and the nonlinear component configured to passively activate, responsive to the pump signal exceeding a threshold power, a parametric oscillation between the input and output meshes having an oscillation frequency equal to half an angular input frequency of the pump signal, wherein an output signal of the PFD can be switched between an in-phase state and an out-of-phase state.

The application belongs to the technical field of oil and gas field development, and relates to a method for simulating phase state change of a plugging agent under high temperature and high pressure conditions, which comprises the following steps: providing a simulation experiment system; preparing an experimental sample; preparing the simulation experiment system; loading the experimental sample in the simulation experiment system; setting experimental parameters of the simulation experiment system; and collecting experimental data of the simulation experiment system. The method for simulating phase state change of the plugging agent under high temperature and high pressure conditions can realize real-time dynamic observation of phase state change of the plugging agent, and is helpful for in-depth understanding of physical and chemical change processes of the plugging agent under extreme conditions.

The application discloses an ultra-low insertion loss non-volatile photonic neural synapse device and belongs to the field of optical computing. The device comprises a substrate, a Bragg grating and a heating area. The Bragg grating is composed of a phase change material and a waveguide. The phase change material is periodically arranged in the waveguide. The heating area is located outside the Bragg grating and covers the phase change material and the waveguide. The fundamental mode in the waveguide is periodically reflected when passing through the Bragg grating. The fundamental mode satisfying the phase matching condition can realize low-loss transmission. The crystallization degree of the phase change material in the Bragg grating is adjusted to realize the modulation of the transmittance of the waveguide. Further, the periodicity, duty cycle and length of the modulation area of the phase change material in the Bragg grating are adjusted to realize that the device has the largest normalized intensity output range in different phase states (crystalline state and amorphous state).

The invention discloses a phased-array antenna vector-free instrument calibration method based on four-phase amplitude measurement. The method comprises the following steps: initializing and selecting a phase reference channel; a phase shifter of a channel to be calibrated is controlled to be switched according to four preset discrete phase states, amplitude measurement values are collected through a receiving unit only having amplitude detection capability, and a four-phase amplitude measurement sequence is obtained; a mathematical model is constructed based on the phase state sequence and the amplitude measurement sequence, and the initial relative phase deviation between the to-be-calibrated channel and the reference channel is directly solved; a phase compensation value is configured according to the deviation, and all channels are traversed to complete calibration; and finally, carrying out performance verification, and starting an iterative fine calibration process when the tolerance requirement is not met. According to the method, high-precision phase calibration can be realized only by using amplitude detection equipment, the system cost and complexity are effectively reduced, and the calibration robustness and practicability are remarkably improved by compensating non-ideal factors and dynamic drift of the system.

This invention discloses an on-chip optical phased array device based on phase change materials and its control method. The device includes an input waveguide, a beam splitter network, arrayed waveguide arms, a phase modulation unit, and an output grating radiation structure. The output grating radiation structure integrates a phase change material. Changes in the phase state, crystallinity, or spatial distribution of the phase change material are used to alter the equivalent refractive index, propagation constant, radiative coupling strength, or phase matching conditions of the output grating region, thereby achieving second-dimensional output angle adjustment at a fixed operating wavelength. This invention not only eliminates the dependence on tunable lasers but also possesses advantages such as simplified structure, ease of integration, non-volatile state preservation, zero static power consumption, and greater suitability for engineering implementation. It provides a new implementation path for on-chip two-dimensional optical phased arrays and has good application value and promising prospects for widespread application.

This invention discloses a highly accurate method for continuous phase detection in digital audio. The method first calculates the correlation coefficient for each time slice, then calculates the phase state for each second and adds it to a phase state queue. Finally, the method determines whether a signal has reversed or ended its phase based on the proportion of reversed phase states in the queue, the first and last second states of the queue, and the length of continuous normal signals in the queue. This method can avoid false alarms caused by frequent low-level signals and accurately calculate the time period for reversed phase alarms, making it suitable for use in the field of digital audio signal processing.

The embodiment of the invention provides a quantum phase state simulation processing method and device, equipment and a medium. The method comprises the following steps: obtaining quantum communication performance data and an adjustment factor; determining a target quantum phase state according to the quantum communication performance data and the adjustment factor; the phase state represents a specific angle for preparing the quantum state; determining a target projection operator according to the quantum communication performance data; according to the target projection operator, the target quantum phase state is measured, and the selection of the phase state for quantum state business and the phase state for measurement is dynamically optimized, so that the measurement failure probability and the error rate are effectively reduced, and the performance of the system is improved.

The utility model belongs to the technical field of gas filling, and particularly relates to a working medium filling device based on phase state control. Comprising a main pipeline used for conveying a working medium from a working medium source into a container to be filled with the working medium, and further comprises a temperature control module used for controlling the temperature of the working medium in the main pipeline through refrigerant circulation, the refrigerant end of the heat exchanger connected in series in the temperature control module serves as an evaporator for refrigerant circulation, and the working medium end of the heat exchanger is further connected to the position, located on the downstream of the pressurizing unit, of the main pipeline in series. The working medium filling device solves the technical problem that the working medium filling device in the prior art is poor in stability.

The application discloses a composite grating middle infrared thermal emitter for gas spectrum detection, which comprises a composite grating layer, an intermediate layer and a substrate layer arranged in sequence from top to bottom; the composite grating layer is used for placing a metal grating structure; the intermediate layer is a phase change material, has different optical parameters under different phase state structures and is used for regulating and controlling the wave band range of an emission spectrum; and the substrate layer is made of metal material; when electromagnetic waves are incident from the composite grating layer and pass through the intermediate layer and the substrate layer, guided mode resonance and Fabry-Perot resonance can be excited, multiple narrow spectrum band emission peaks can be excited in the middle infrared wave band, the absorption spectral lines of different required to-be-detected gases are matched, and synchronous and accurate detection of multi-component gases is realized.

A superconducting circuit and a quantum computer capable of implementing four-body interaction while reducing an amount of hardware are provided. A superconducting circuit (1) includes four superconducting qubit circuits (10), a coupling circuit (20) inductively coupled to the four superconducting qubit circuits (10). Each of the superconducting qubit circuits (10) indicates a qubit by being in a first phase state or a second phase state, when the number of the superconducting qubit circuits (10) in the first phase state among the four superconducting qubit circuits (10) is an even number, an interaction term of Hamiltonian of the superconducting circuit (1) takes a first value, and when the number of the superconducting qubit circuits (10) in the first phase state among the four superconducting qubit circuits (10) is an odd number, the interaction term takes a second value.

A signal source positioning method, a signal source positioning apparatus, an electronic device and a computer-readable storage medium, which relate to the technical field of communications. The signal source positioning method comprises: acquiring signal strengths of signals received at a signal receiving point in at least two preset phase states, wherein the signals are sent by a signal source to the signal receiving point (S101); performing data processing on the signal strengths to obtain target signal feature values corresponding to the at least two phase states (S102); on the basis of a mapping relationship between an orientation and a signal feature value in each of the phase states, determining target orientations corresponding to the target signal feature values (S103); and on the basis of the target orientations, positioning the angle of the signal source relative to the signal receiving point (S104).

The invention discloses a high-precision rapid synchronization control method and device based on multi-stage variable speed tracking, and the method comprises the steps: dividing a pre-synchronization process of a to-be-synchronized system and an external power grid into a plurality of cooperative control stages which are sequentially executed; in the full-speed tracking stage, the time required by acceleration and deceleration convergence of the system to be connected to the grid to be synchronized is calculated and compared, and the frequency deviation direction with the optimal time is decided. When the phase difference is smaller than a first threshold value, entering a prediction proportion convergence stage, and performing smooth adjustment by adopting frequency deviation proportional to the phase difference; and judging whether a second threshold value is reached or not according to the phase state prediction, entering a multivariable synchronous verification stage, and sending out a closing instruction only when the voltage difference, the frequency difference and the phase difference simultaneously meet respective allowance thresholds and are kept stable. According to the method, the optimal control strategy is adopted in stages, so that the grid-connected time is effectively shortened, overshoot and oscillation are inhibited, and the rapidity and accuracy of the grid-connected process and the system reliability are remarkably improved.

The present application relates to the technical field of circuit breaker detection, and particularly relates to a phase state detection and display method and device for a double-contact circuit breaker. The present application first acquires the number of mechanical actions, temperature data and current waveform at the time of opening and closing; further acquires the mechanical wear coefficient according to the total number of mechanical actions and the frequency of recent mechanical actions; further analyzes the current waveform at the time of the latest opening and closing to acquire the current abnormality degree of wave crest performance and current fluctuation; further analyzes the abnormal performance of the temperature rise rate and the steady-state temperature to acquire the current temperature abnormality degree; finally, the current mechanical wear coefficient, wave crest performance abnormality degree, current fluctuation abnormality degree and temperature abnormality degree are combined to detect the state of the double-contact circuit breaker and display the state; the gradual degradation of the double-contact circuit breaker is comprehensively predicted from the aspects of mechanical wear, abnormal performance of current waveform and abnormal performance of temperature, so that potential abnormal fault problems of the double-contact circuit breaker can be identified in time.

This application belongs to the field of beamforming technology, and relates to a method, apparatus, device, and medium for beamforming a polarization-time modulation array. The method includes: obtaining a polarization-time modulation array model and acquiring the weighting coefficients of each harmonic; based on polarization null space theory, transforming a quadratic constrained quadratic programming optimization problem into an equivalent second-order cone programming problem and solving it to obtain the optimal fundamental excitation weights; obtaining the constraint relationship between the optimal fundamental excitation weights and the phase state conduction duration, and obtaining the range of values ​​for the phase state conduction duration; performing synchronous optimization within the range of values ​​for the phase state conduction duration to obtain the optimal conduction duration and the optimal phase selection sequence, thereby determining the remaining conduction time; and performing modulation based on the optimal conduction duration and the remaining conduction time to form the beam of the polarization-time modulation array. This application can significantly improve the efficiency and numerical stability of beamforming.

Some embodiments relate to systems and methods for communication of electronic signals. An example method includes receiving a first signal having a predetermined modulation. The example method includes generating a transmission for a second signal by superimposing the second signal on the modulation of the first signal by adjusting at least one of two phase states or two amplitude states of the modulation using a Reconfigurable Intelligent Surface (RIS). The example method also includes transmitting the second signal using hierarchical modulation, the predetermined modulation and the superimposed second signal on the predetermined modulation, wherein the first signal is transmitted at a higher data rate than the second signal.