676 results about "Signal level" patented technology

The invention discloses a touch feedback enhanced multi-mode robot grabbing control system and method. The touch feedback enhanced multi-mode robot grabbing control system comprises a touch feedback enhancement module, a visual touch language large model semantic generation module and a touch enhancement diffusion control optimization module. The tactile feedback enhancement module is based on a multi-agent cooperation system, performs semantic level and signal level processing on tactile signals, and realizes upper and lower layer coordination through a feedback routing mechanism. And the visual touch language large model module adopts a touch encoder based on CLIP to realize multi-mode semantic conversion and material attribute identification. And the tactile enhancement diffusion control module adopts a BRIDGeR style interpolation diffusion technology, and combines visual embedding and tactile constraint to realize high-frequency optimization of an action track. According to the method, the material identification accuracy, the precision operation success rate and the complex scene self-adaptive capability are remarkably improved.

A memory device includes a column decoder configured to decode a column address. The column decoder includes a column select driver configured to modulate a column select signal based on the column address in order to activate or deactivate a plurality of column selection circuits coupled to a column select line. The column select signal includes an activation pulse for activating the plurality of column selection circuits during an activation interval. The activation pulse includes a first portion having a positive boost signal level and a second portion having an activation signal level that is less than the positive boost signal level. The column select driver is configured to generate the first portion of the activation pulse for a first duration of the activation interval, and, following the first duration, generate the second portion of the activation pulse for a second duration of the activation interval.

The present application provides a complex programmable logic device (CPLD)-based data processing method and system, and a computing device. The CPLD is arranged on a hard disk backplane of a server, and the hard disk backplane supports a universal backplane management (UBM) protocol; the hard disk backplane comprises an HFC connector for connecting to a RAID controller and a DFC connector for connecting to a hard disk slot, and the CPLD is connected to the HFC connector and the DFC connector, respectively. The method comprises: when a hard disk is inserted into the hard disk slot, determining an interface type of the hard disk according to a signal level transmitted by the DFC; processing interaction data between the RAID controller and the hard disk according to the hard disk interface type, wherein the interaction data comprises data indicating the hard disk interface type, data indicating a hard disk state and read / write operation command data; and transmitting the processed data to the RAID controller or the hard disk so as to achieve hard disk management, wherein the hard disk comprises a hard disk of an SAS / SATA / NVME interface type. In this way, new logic functionality is added to an existing logic chip of the hard disk backplane to achieve the functionality of the UBM protocol.

The invention discloses an electric energy quality data monitoring method, and relates to the technical field of electric power system monitoring and analysis, and the method comprises the following steps: S1, obtaining an original voltage and current waveform set; s2, performing time-frequency domain decomposition by using the waveform set; s3, performing feature fusion by using the feature component set; s4, performing time serialization by using the electric energy quality index set; and S5, performing multi-dimensional structured integration by using the time sequence index data. By setting a voltage and current characteristic component coupling mechanism, unified expression of voltage and current characteristics can be ensured on an original signal level, and fine-grained description of electric energy quality characteristics is realized in an index calculation link, so that the problems of data dimension separation and insufficient index precision in the prior art are effectively solved. The method not only improves the comprehensiveness and reliability of the electric energy quality monitoring result, but also lays a solid data foundation for subsequent time serialization and structuralization integration.

The invention belongs to the technical field of integrated circuit testing, and particularly relates to an FPGA software and hardware cooperation testing platform based on a BFM. The test platform is formed by connecting a BFM with a Testbench, an AXI bus, an off-chip DDR and a DUT. The test process comprises the steps that the Testbench issues parameters through a transaction function interface, the BFM reads an excitation vector from the off-chip DDR / on-chip BRAM through an Avalon main interface, adaptive transmission of a system bus clock domain and a DUT clock domain is completed through double asynchronous FIFO (SNDfifo / RECfifo), and signal level interaction with the DUT is achieved through a pin protocol interface; the state machine dynamically switches long and short simulation modes according to the vector length, and drives the output vector to be written back and stored; the error monitoring unit monitors data flow faults in the whole process and outputs seven types of error reporting codes. The simulation equivalent frequency reaches a 10 megahertz level, and the method is suitable for efficient verification of the digital IC.

A test and / or measurement system includes a signal generator circuit, wherein the signal generator circuit includes a processing circuit. The processing circuit is configured to generate and / or process a predetermined waveform, wherein the predetermined waveform includes at least one critical portion. The processing circuit is configured to control the signal generator circuit to generate a radio frequency, RF, signal, based on the predetermined waveform, wherein the generated RF signal includes the predetermined waveform. The processing circuit is configured to adapt operational parameters of the signal generator circuit such that a signal level of the at least one critical portion of the RF signal generated fulfills at least one predefined criterion.

In one embodiment, a method includes: receiving, in a level shifter, an input signal from a first voltage domain that operates according to a first supply voltage; level shifting the input signal to at least one level-shifted signal having a second voltage greater than the first supply voltage; based on the at least one level-shifted signal, generating a first pulse signal and a second pulse signal; latching the first pulse signal through a latch circuit to form an output signal; and outputting the output signal to a second voltage domain, the second voltage domain to operate according to a second supply voltage greater than the first supply voltage.

An analog-to-digital converter (ADC) includes a first digital-to-analog converter (DAC) configured to change a signal level of a first node based on a first and second input analog signals, a second DAC configured to change a signal level of a second node based on one of the first input analog signal and the second input analog signal, a comparator configured to compare the signal level of the first node and the signal level of the second node, and a controller configured to generate a first digital value for the first DAC and a second digital value for the second DAC based on an output of the comparator during a first conversion phase corresponding to a first sampling phase, input the first digital value into the second DAC before a second sampling phase, and input the second digital value into the first DAC before the second sampling phase.

The invention discloses a steel structure construction safety risk dynamic assessment method and system based on artificial intelligence. The method comprises the steps of obtaining a multi-dimensional data set in real time; based on the multi-dimensional data set, a deep learning algorithm is adopted to fuse an image and a sensor signal, a structure defect is accurately identified, and a defect feature vector is extracted; when the defect feature vector exceeds a preset threshold value, a machine learning classifier is introduced to construct a risk assessment model, classification quantification of defects is realized, and an initial risk level is output; for the initial risk level, analyzing the space-time fusion data by using a probability state transition model, simulating the dynamic evolution trend of the risk and judging the stability of the risk; a mapping model is constructed based on a virtual simulation technology, dynamic simulation deduction is carried out on risk changes, and a visual visualization report and a graded early warning signal level are generated. According to the invention, full-chain intelligent closed loop from defect perception to risk prospective early warning is realized, and the safety management and control level and accident prevention capability of a construction site are greatly improved.

A system for evaluating an ear seal between an earphone of a hearing device and an ear canal includes a first transducer configured to play a sound in response to an electrical signal including a reference frequency component and a test frequency component below the reference frequency. A second transducer receives the sound in the ear canal. A controller is configured to calculate at least one electrical signal level difference between the reference frequency component and the test frequency component of the electrical signal, measure the sound levels of the reference frequency component and the test frequency component of the sound in the ear canal, calculate an acoustic signal level difference between the measured sound levels of the reference frequency component and the test frequency component, calculate a normalized acoustic difference value by subtracting the electrical signal level difference from the acoustic signal level difference, and determine a measurement result of the ear seal based on the normalized acoustic difference value.

The invention provides a knob dimming method which comprises the following steps: S1, when a falling edge is detected in each interruption of a program, performing input falling edge interruption on a pin A, and then starting a timer; s2, judging whether the timing time of the timer is up or not, if not, returning to S1, and if so, reading the signal level of the pin A; and S3, judging whether the signal level of the pin A read in S2 is a low level or not, if not, returning to S1, and if so, judging that the level of the pin A is valid. According to the invention, the effective level can be rapidly obtained after the level recovers to be stable, the maximum delay time or pulse period is not measured again by means of device replacement, the knob level is read by dynamically setting timing, misjudgment is greatly avoided, and in addition, the problem of pulse signal counting coverage caused by rapid rotation of the knob is also solved.

An illumination device includes: a light source part emitting light; a light distribution shape setter setting a light distribution shape of light from the light source part; a storage storing therein light distribution shape data related to the light distribution shape; and a controller controlling the light distribution shape setter based on the light distribution shape data. Further, the light distribution shape setter sets the light distribution shape based on a signal level input from the controller, and when changing the signal level input to the light distribution shape setter from a first level to a second level, the controller changes the signal level from the first level to a third level that is a level between the first level and the second level, and changes the signal level from the third level to the second level after maintaining the third level for a predetermined time period.

An assembly of electronic components for reception of data using an optical fiber wherein data is received in bursts, the assembly including: a photodiode; a transimpedance amplifier coupled to said photodiode, wherein a gain of the transimpedance amplifier is adjusted based on a level of a gain control signal; a received input signal sensor configured to sense a received input signal level; and a signal preamble detector configured to detect the end of at least one of said preamble patterns in a data burst conveyed in said received signal and further configured to generate said settling control signal as an output.

A sensor controller includes an obtaining section configured to obtain a position signal indicating a position of an electronic pen from a pen sensor configured to detect the position of the electronic pen. The sensor controller includes a pen pressure calculating section configured to calculate a pen pressure value regarding a pen pressure of the electronic pen on the pen sensor on the basis of a change in a signal level of the position signal obtained by the obtaining section.

The present invention discloses a level conversion circuit and chip for converting an input signal in a first voltage domain into an output signal in a second voltage domain. The level conversion circuit includes: a switch unit including a first MOS transistor and a second MOS transistor, wherein the control end of the first MOS transistor and the control end of the second MOS transistor are both connected to a bias voltage; an input unit operating in the first voltage domain and connected to the second end of the first MOS transistor and the second end of the second MOS transistor; a conversion unit operating in the second voltage domain and connected to the first end of the first MOS transistor and the first end of the second MOS transistor; an output unit operating in the second voltage domain; and a clamping unit connected between the switch unit and a first low voltage. In a first state, the first high voltage is not powered off and the clamping unit is disconnected. In a second state, the first high voltage is powered off and the clamping unit is turned on to clamp the driving voltage to the second low voltage. The present invention reduces chip area and avoids power consumption caused by the DC current brought by the pull-down element.

The invention discloses a BISS-C protocol-based data acquisition board card and a synchronization method, and relates to the technical field of data acquisition board cards, the board card comprises an FPGA main control unit, a level conversion unit, a BISS-C decoding unit, a signal integration interface unit, a PCIe high-speed interface unit and a model interaction module; the signal integration interface unit realizes centralized access of a plurality of encoder signals, the level conversion unit completes signal level adaptation, the BISS-C decoding unit and the FPGA main control unit realize protocol analysis, synchronous control and data processing, and the BISS-C decoding unit and the FPGA main control unit realize data acquisition and interaction. And the PCIe high-speed interface unit and the model interaction module realize high-speed data transmission and flexible development and debugging. According to the invention, synchronization precision and acquisition capability can be improved, transmission efficiency and development efficiency can be optimized, environmental adaptability and reliability can be enhanced, and compatibility and flexibility can be improved.

An analog signal generation device according to the present invention includes a DA converter that adjusts a signal level of a digital signal according to a DAC correction amount and then converts the digital signal into an analog signal, a detector that detects the analog signal and outputs a detection signal, a storage unit that stores a characteristic equation for calculating the DAC correction amount, and a control unit, in which in a case where the differential voltage when the digital signal having a signal level of a predetermined value is input to the DA converter is larger than a threshold value, the control unit calculates a new DAC correction amount based on the differential voltage by using the characteristic equation, and in a case where the differential voltage does not fall within the threshold value, the control unit corrects the characteristic equation.

The invention discloses a circuit and a method for demodulating current received by an instrument bus host, and relates to the technical field of instruments. The current demodulation circuit comprises an adder, the first input end of the adder is connected with an instrument bus MBUS to receive MBUS signals, the second input end of the adder receives reference voltage signals, and the output end of the adder outputs summing voltage signals; the resistor and capacitor charging and discharging device is connected with the output end of the summator so as to process the summing voltage signal; and the reverse input end of the comparator receives the MBUS signal, and the positive input end of the comparator receives the summing voltage signal processed by the resistor-capacitor charging and discharging device so as to determine the logic level corresponding to the MBUS signal based on the signal level of the output end of the comparator. According to the invention, the problem that the MBUS host receiving circuit cannot be compatible with all MBUS meters is solved.

An apparatus and method for generating an output media file as a function of determining a media source. The apparatus includes at least an audio input device configured to detect at least an audio signal and convert the at least an audio signal into an electronic signal, and at least a processor communicatively connected to a memory, the processor configured to identify, using a first model, one or more engaged devices based on sensor data, receive input data, filter the input data based on a signal level and a context datum of the at least an electronic signal, and determine, using a second model, a key audio source as a function of the one or more engaged devices and the filtered input data, generate, using a virtual director, an output media file as a function of the key audio source, and present the output media file.

The utility model provides an alternating current frequency detection circuit and a battery management system, and belongs to the technical field of frequency detection. The alternating current frequency detection circuit comprises an acquisition unit and a frequency detection unit, the acquisition unit comprises a first voltage division module and a second voltage division module, a first end of the first voltage division module is connected with one end of an alternating current power supply, and a second end is connected with a first direct current power supply; the fourth end of the second voltage dividing module is connected with the other end of the AC power supply, and the fifth end is connected with a first DC power supply which is used for enabling the third end and the sixth end to output positive voltage; the first input end of the frequency detection unit is connected with the third end, the second input end is connected with the sixth end, the first output end is used for outputting a level signal corresponding to the AC power supply, and the level signal is used for indicating the frequency corresponding to the AC power supply. According to the invention, the detection of the frequency of the alternating current is realized through a hardware circuit composed of the acquisition unit and the frequency detection unit, and the technical problem that the detection process of detecting the frequency of the alternating current through software is tedious is solved.

The invention discloses a low-altitude unmanned aerial vehicle countering monitoring system based on state feature decoding, relates to the technical field of unmanned aerial vehicle prevention and control, and is used for solving the problem of poor low-altitude target detection and countering. According to the invention, through closed-loop management and control of heterogeneous radar networking detection, signal level fusion processing, threat assessment and resource scheduling and intelligent countering decision, accurate identification and directional countering of the low-altitude unmanned aerial vehicle are realized; according to the method, the detection precision and the micro-Doppler feature extraction capability of a low-speed small target are improved by combining a virtual aperture synthesis technology, then unbalanced resource allocation is implemented based on a threat level, the system efficiency is optimized, and finally seamless migration of an interfered node task is realized by constructing a signal interference situation map. And continuous tracking and effect evaluation on the target are maintained in the active radio frequency countering process, so that the overall efficiency and reliability of low-altitude security and protection in a complex environment are effectively improved.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a method implemented in a wireless device includes receiving a low-power wake-up signal (LP-WUS) configuration from a network side device indicating a set of frequency resources allocated for LP-WUS transmission. The method also includes determining one or more subsets of the set of frequency resources to be allocated to one or more bits associated with the LP-WUS transmission according to the LP-WUS configuration and determining a first reference signal and a second reference signal according to the LP-WUS configuration. The method also includes receiving one or more signals over the set of frequency resources from the network side device, determining one or more signal levels according to the one or more signals and determining the one or more bits according to the one or more signal levels, the first reference signal, and the second reference signal.

The invention relates to the technical field of data processing, in particular to a psychological crisis dynamic multi-source data analysis system, which comprises a data acquisition module for synchronously acquiring user behavior log data, physiological monitoring data and academic evaluation data; the real-time fusion calculation module performs feature extraction on the three types of data in parallel, an event stream processing engine is adopted to extract behavior mode features, sliding window Fourier transform is adopted to generate time-frequency spectrum features, deviation standardization is adopted to generate numerical feature vectors, cross-modal association weights are calculated through a space-time diagram convolutional network, and a high-risk association mode is output; the early warning generation module generates graded early warning signals, the early warning output module calls a push channel and a first-level early warning trigger short message notification and an emergency intervention interface according to signal levels, and the second-level early warning generates a visual report. Through heterogeneous data parallel processing, space-time diagram convolution fusion and edge calculation deployment, the problem of dynamic processing delay caused by multi-source data fusion missing is solved, and college psychological crisis real-time early warning is achieved.

An apparatus is provided that includes a memory die including non-volatile memory cells coupled to a signal line, a switching circuit including a control terminal coupled to a first conductor, the switching circuit configured to selectively couple the signal line to a power supply based on a signal level on the first conductor, a second conductor capacitively coupled to the first conductor, and a control circuit coupled to the switching circuit. The control circuit is configured to detect a defect in the first conductor by coupling the second conductor to a first voltage source, coupling the signal line to a second voltage source, and detecting a drop in a voltage of the second voltage source.

The invention relates to the technical field of intelligent multi-stage gradient alarm power-off scheme design for high-pressure hydrogen storage tank leakage, in particular to an intelligent multi-stage gradient alarm power-off method and system for high-pressure hydrogen storage tank leakage. The method comprises the steps that hydrogen concentration, pressure and temperature signals are collected through a distributed sensor network, multi-stage gradient alarm signals are generated based on a fuzzy logic decision algorithm after the signals are subjected to fusion processing, and early warning, regional power failure or emergency hydrogen discharge control is executed according to signal grades. The system comprises a sensor network, a signal fusion module, a fuzzy logic decision module and an execution module. Through multi-sensor data fusion and intelligent decision making, accurate identification and grading response of leakage risks are achieved, the problems that in the prior art, the false report and missing report rate is high, and the response mechanism is rigid are solved, the safety and operation reliability of the high-pressure hydrogen storage tank are remarkably improved, and the method is particularly suitable for safety protection of a hydrogen-electricity hybrid locomotive.

The present invention relates to the field of satellite communication channel compatibility analysis and simulation, and specifically to a satellite communication channel compatibility analysis and simulation system. The solution includes a simulation software subsystem and a semi-physical simulation subsystem. The present invention uses the simulation software subsystem to construct the application scenario of the satellite and complete functions such as constellation construction and orbit calculation; uses the semi-physical subsystem to complete link-level signal simulation, generate and receive analysis baseband signals, simulate the entire signal generation, signal transmission and signal reception process in the actual satellite link, and realize the simulation of the constellation system from the scenario level to the signal level. At the same time, the present invention enables the semi-physical simulation subsystem and the simulation software subsystem to work together through collaborative simulation. The collaborative simulation is mainly when the channel quality is very good or very poor. The semi-physical simulation subsystem skips the simulation process at the current moment and directly enters the simulation at the next moment, which greatly improves the simulation calculation efficiency. The present invention is suitable for satellite communication channel compatibility analysis and simulation.

Embodiments relate to a method of operating a pixel circuit (120) comprising a first capacitor (126) and a second capacitor (127). The first capacitor (126) is configured to be connected to the second capacitor (127), and the second capacitor (127) is configured to be connected to a readout source follower (130). The method comprising a sampling process and a readout process. The sampling process comprises sampling signal charges (S130) to the first capacitor (126). The readout process comprises reading out (S150) first charges stored in the second capacitor (127), connecting (S160) the first capacitor (126) to the second capacitor (127) so as to distribute the signal charges stored in the first capacitor (126) between the first and second capacitors (126, 127), and reading out (S170) second charges stored in the second capacitor (127). A signal level stored in the second capacitor (127) is maintained after reading out the second charges and before sampling signal charges to the first capacitor for a next frame.

A transistor module, driver for transistor module, corresponding system and method are provided. The transistor module comprises a transistor, an overcurrent protection circuit configured to detect an overcurrent condition of the transistor and to set the transistor to an overcurrent protection state in response to detecting the overcurrent condition, and a signaling circuit coupled to a control terminal of the transistor module and configured to modify a signal level at the control terminal in response to the overcurrent protection circuit detecting the overcurrent condition.

The application provides a traveling wave distance measurement method and device based on modal decomposition and transient energy spectrum, equipment, and a medium. The method comprises the following steps: performing variational modal decomposition on transient traveling wave signals of two substations to obtain a function set composed of multiple intrinsic modal functions; determining modal components from the two function sets based on a kurtosis energy joint criterion; determining transient energy sequences based on the modal components and multiple Teager energy operators; determining the arrival time of the wave head from the transient energy sequences based on an adaptive dynamic threshold method; and determining the fault point position based on the arrival time of the wave head, a preset line length, and a target traveling wave transmission speed. The kurtosis and energy can be used to capture the mutation point of the wave head at the signal level, the arrival time of the wave head can be determined based on the physical characteristics of the signal, noise can be suppressed by combining the modal components and the Teager energy operator, and efficient calculation and anti-interference can be realized without introducing a neural network model.

The present application provides a non-periodic time modulation corner reflector with wide-angle regulation and a harmonic spectrum conversion method thereof, the reflector comprising a time modulation metasurface and a three-face corner reflector structure; wherein the time modulation metasurface is a single plane structure composed of an active adjustable metasurface and a field programmable gate array (FPGA) time modulation control system. The conversion method comprises the following steps: step one, wide-angle time modulation corner reflector design; step two, non-periodic time modulation model establishment based on the wide-angle time modulation corner reflector; and step three, continuous harmonic spectrum conversion method based on the wide-angle time modulation corner reflector. The present application effectively improves the wide-angle stability of the time modulation metasurface by combining the time modulation metasurface with the corner reflector, and can control the harmonic spectrum distribution of the backward reflected electromagnetic wave in a wide-angle range. At the same time, a non-periodic time modulation model is established from the signal level, and the effect of reflective continuous harmonic spectrum conversion is realized.