385 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.

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.

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.

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.

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 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 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 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.

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.

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.

A monitor is provided, which is capable of continuously monitoring a monitoring target in a batteryless and maintenance free manner even with a small storage capacity. The monitor is a device using, as a sensor, a thermal battery including a thermoelectric power generation element which outputs a voltage according to a temperature difference between a temperature of an atmosphere covering the monitoring target and a temperature of a contact part with the monitoring target. The monitor includes a boost circuit outputting a boost voltage obtained by boosting a voltage input from the thermal battery; an energy storage element connected to an output port of the boost circuit, and storing power supplied from the thermal battery as a sensor and boosted by the boost circuit; a voltage detection circuit outputting a control signal which includes signal levels respectively corresponding to whether or not the detected boost voltage exceeds a predetermined voltage; and a switch opening and closing a path connecting a first terminal and a second terminal connected to the output port.

To perform suitable multi-phase control in an on-time control method.SOLUTION: Using output transistors (MH) for a plurality of channels, an input voltage is independently switched; thus, an output voltage is generated. A ramp voltage (Vramp) and an error voltage (Verr) according to an error between a feedback voltage (Vfb) and a reference voltage (Vref_fb) are generated and from these voltages, a comparison signal (Cout) is generated. Based on the comparison signal, the output transistors of the channels are controlled to be on sequentially for a predetermined on period. Every time the level of the comparison signal is changed to an active level, the change direction of the ramp voltage is changed from a first direction to a second direction and after an inverted trigger time elapses, the direction is returned to the first direction. The inverted trigger time is set to be less than or equal to the time obtained by dividing the predetermined on period by the number of channels.SELECTED DRAWING: Figure 7

The invention discloses a voice enhancement method based on noise fusion, and relates to the technical field of voice enhancement. According to the speech enhancement model, a frequency band division recurrent neural network is taken as a core architecture, noise-containing mixed speech and additional noise signals are input, and after processing of a noise fusion module, generated enhanced speech is output. Noise input is composed of a plurality of actually recorded noise segments, and the model can efficiently learn diversified noise modes in real time. The noise fusion comprises signal level splicing fusion, feature level splicing fusion, conditional normalization fusion and cross attention fusion. According to the method, the performance upper limit and robustness of speech enhancement are greatly improved on the premise of keeping the advantages of light weight and calculation efficiency of an original model.

A method and apparatus for automatic gain control (AGC). A transceiver includes an analog-to-digital converter (ADC) configured to convert a received analog signal to digital signal, a measurement circuitry configured to measure a signal level on the digital signal, an AGC controller configured to generate, based on the measured signal level, an analog gain control signal to change a gain to be applied to a received analog signal in analog domain and a digital gain control signal for digital gain compensation corresponding to the gain change in analog domain, and a digital gain compensation circuitry configured to apply the digital gain compensation based on the digital gain control signal. The digital compensation gain applied to the digital bits follows a ramp profile that is an inverse of a transient response to the gain change in analog domain.

The invention discloses a special equipment operator electroencephalogram fatigue detection method based on sample compensation and a hybrid model, and the method comprises the steps: collecting an electroencephalogram signal of a special equipment operator, and carrying out the preprocessing of the electroencephalogram signal, and obtaining a preprocessed electroencephalogram signal; performing multi-domain feature extraction and fusion on the preprocessed electroencephalogram signals to obtain a multi-dimensional feature set; performing compensation processing on the electroencephalogram signal and the multi-dimensional feature set by adopting a sample compensation method to obtain a compensated sample feature set; wherein the sample compensation method comprises a characteristic level compensation method and a signal level compensation method; training a hybrid model through the compensated sample feature set to obtain a trained hybrid model; wherein the hybrid model comprises a deep learning model and a traditional machine learning model; and performing electroencephalogram fatigue detection on the special equipment operator through the trained hybrid model to obtain a detection result.

This invention discloses a level shifting circuit, including a delay signal generation module and a first voltage domain shifting module and a second voltage domain shifting module coupled to each other. The delay signal generation module is electrically connected to an input signal and is used to output different voltage signals after performing different phase inversions and delays on the input signal. The first voltage domain shifting module obtains the output voltage signal of the delay signal generation module by electrically connecting to several ports of the delay signal generation module. The voltage domain shifting module controls the output of a first output voltage based on the output voltage signal of the delay signal generation module. This invention enables individual pull-up and pull-down of the output signal, thereby achieving extremely low transmission delay during signal level shifting, accelerating signal transitions, and maintaining consistent delays, thus protecting the use of MOSFETs.

The present application relates to a frequency synthesizer with dynamically selected level shifting of an oscillating output signal. An oscillator circuit powered by a source voltage generates an oscillating output signal. The oscillating output signal is level shifted and applied to a first input of a multiplexer. A second input of the multiplexer receives the oscillating output signal. The multiplexer selects one of the oscillating output signal and the level shifted oscillating output signal to output as a selected oscillating output signal in response to a selection signal. A lock loop circuit controls a frequency of the oscillating output signal based on the selected oscillating output signal and a reference oscillating signal. The selection signal also selects one of the source voltage of the oscillator circuit and a reference voltage as an error amplifier reference voltage for a voltage regulator circuit that generates a first supply voltage.

The embodiment of the application discloses a communication circuit of an indoor unit and an air conditioner. The communication circuit of the indoor unit comprises a first communication module and a first control module. The first communication module comprises a voltage reduction resistor unit and a first communication unit. The voltage reduction resistor unit is connected with a power supply and the first communication unit respectively. The voltage reduction resistor unit is used for reducing the first voltage provided by the power supply to obtain the second voltage to supply power for the first communication unit. The first control module is connected with the voltage reduction resistor unit. The first control module is used for outputting the level signal corresponding to the power supply type of the power supply according to the power supply type of the power supply. The level signal is used for controlling the first communication module to adjust the resistance value of the voltage reduction resistor unit. The resistance value of the voltage reduction resistor unit is matched with the power supply type of the power supply, thereby avoiding causing the damage of the first communication unit. Meanwhile, it is ensured that the first communication unit can be driven to work, thereby improving the communication reliability of the communication circuit of the indoor unit.

The invention discloses a vehicle machine screen two-dimensional coupling detection method and system, and belongs to the technical field of computer vision and industrial automation detection. Obtaining a vehicle machine screen image stream through a multi-source video access layer; the vehicle machine screen image flow is input into a pre-trained YOLOv5-Heat multi-mode model, a screen abnormity type is recognized, and the screen abnormity type comprises at least one of color cast, dead pixels, full-screen abnormity and overheat points; analyzing the identified screen abnormity by adopting a two-dimensional coupling algorithm, and generating an early warning signal of a corresponding grade based on a result of the two-dimensional coupling algorithm; and when the early warning signal level is serious abnormity, an abnormal signal is converted into a CAN frame through the weekly standing power module, an instruction is sent to the execution module through the control bus, the relay module is controlled to execute power-off operation, and the vehicle machine is triggered to be restarted. The method is obviously superior to the prior art in five dimensions of detection precision, real-time performance, reliability, easy deployment and later cost.

A gate driver includes a plurality of stages. At least one stage of the plurality of stages includes a logic circuit configured to generate an intermediate carry signal and a carry output signal by sampling a carry input signal based on a clock signal, and to generate an intermediate gate signal by performing a logic operation on an output enable signal, the intermediate carry signal and the carry output signal, a level shifting circuit configured to generate a gate signal by shifting a voltage level of the intermediate gate signal, and a buffer circuit configured to output the gate signal at a gate output node when a high impedance signal has a first level, and to float the gate output node when the high impedance signal has a second level.

Method for detecting a single permanently conductive defective semiconductor switch of the semiconductor switches (210, 340) of a semi-controlled H-bridge (100) for setting an excitation current of a separately excited synchronous machine, wherein the semi-controlled H-bridge (100) a bridge branch (200) with one of the semiconductor switches T1 (210) and a diode D3 (230) connected in series in reverse bias and a further bridge branch (300) comprising a further diode D2 (320) in reverse bias in series with a further semiconductor switch T4 (340) and a load branch (400) comprising an excitation winding (460) of the separately excited synchronous machine, wherein the load branch (400) connects a connection point (250) from one of the semiconductor switches T1 (210) and the diode D3 (230) in the first bridge branch (200) and with a further connection point (350) between the further diode D2 (320) and the further semiconductor switch T4 (340) in the further bridge branch (300), and wherein a current measuring device (480) for measuring the current excitation current is arranged in the load branch (400); wherein the semi-controlled H-bridge (100) is coupled to a control device (1200) comprising an excitation current control (1220) which generates two pulse-width modulated control signals (611, 621) of the same frequency, phase-shifted by half a period, for controlling one of the semiconductor switches T1 (210) and the other of the semiconductor switches T4 (340), such that the excitation current flowing through the load branch (400) can be controlled via the pulse-width modulation of the control signals (611, 621) according to a requirement, wherein a duty cycle in normal operation is limited to a range of 50% to 100%, wherein the duty cycle is a ratio of the temporal pulse width of a signal level (612, 622), which puts the correspondingly controlled semiconductor switch (210, 340) into a conducting state, to the period of the control signal (611, 621) and wherein the load branch (400) comprises a current measuring device (480) to measure the excitation current,which is used as a feedback signal by the excitation current control (1220), , the procedure includes the following steps: Detection of the excitation current and a target excitation current, Comparing the target excitation current according to the requirement with the excitation current measured and recorded by the current measuring device to determine a control deviation and Comparing the control deviation with a control deviation threshold and outputting an error signal if the control deviation exceeds the control deviation threshold. where a supply voltage U DC is detected, which is located at the semi-controlled H-bridge (100), and for this supply voltage U DC a standard duty cycle for a The target excitation current value is determined corresponding to the currently recorded measured excitation current value for a minimum possible load branch resistance value of the load branch (400), and an error signal is output if the currently set duty cycle is smaller than the determined standard duty cycle. or for the excitation current value measured at the currently set duty cycle and the A standard duty cycle range (1080) is determined from the measured supply voltage, which includes duty cycles that correspond to the currently measured excitation current value for various possible load branch resistances, and it is checked whether the currently set duty cycle is within the standard duty cycle range (1080), and a short-circuited semiconductor switch is detected if the currently set duty cycle is not within the determined standard duty cycle range (1080).

The present invention improves the image quality of an image sensor that reads out voltage that corresponds to charge.　According to the present invention, a photoelectric conversion film generates charge by photoelectric conversion. A charge accumulator accumulates the charge. An amplification transistor successively outputs a reset level that corresponds to the voltage of the charge accumulator at initialization and a signal level that corresponds to the voltage of the charge accumulator after a prescribed accumulation period has passed. A connection transistor controls a conversion gain for conversion of charge to voltage to any of a plurality of values. A vertical drive unit causes the reset level to be outputted while causing the conversion gain to to be controlled to each of the plurality of values when the charge accumulator has been initialized and causes the signal level to be outputted while causing the conversion gain to be controlled to each of the plurality of values when the accumulation period has passed.

An audio system with a base station connected to multiple mobile devices. The base station and the mobile devices are configured to exchange data. The base station is connected to an audio mixer configured to receive multiple input signals from the mobile devices, mix them into a single signal, and provide it as an in-ear monitoring signal. This signal is then transmitted to a mobile device that includes an output amplifier and connected transducers. The mobile device receiving the in-ear monitoring signal has a volume control that allows the user to adjust the playback volume of the in-ear monitoring signal. The mobile device also has an audio compressor that compresses the input signal level of the in-ear monitoring signal as a function of the volume setting, ensuring that the output level of the output amplifier does not exceed a predefined limit.

The utility model discloses a kind of multi-channel signal detection system and optical module, comprising: digital signal processor and control module;Digital signal processor includes: at least two signal level output ports;Control module includes at least two interrupt input interface and drain open circuit output interface;Wherein, signal level output port and interrupt input interface one-to-one correspondence;Each signal level output port is connected with corresponding interrupt input interface, for the output level of each signal level output port, as the input level of each interrupt input interface;Control module is used to according to the input level of each interrupt input interface, drain open circuit output interface exports instruction signal.So that control module can simultaneously according to the input level of received multiple interrupt input interface, drain open circuit output interface carries out the output of instruction signal, reduce the circuit complexity, so that multi-channel signal detection can be simultaneously supported, improve level response efficiency.

Some embodiments of the present invention provide a technique advantageous in improving the image capturing performance of a photoelectric conversion apparatus having a voltage holding type global electronic shutter function.SOLUTION: According to an embodiment of the present disclosure, there is provided a photoelectric conversion apparatus including a plurality of pixels and a processing circuit configured to process signals read out from the plurality of pixels, wherein each of the plurality of pixels includes a photoelectric conversion element, a first amplification unit including an input node to which a signal from the photoelectric conversion element is input and configured to output a signal obtained by amplifying a signal level of the input node, and a holding unit configured to hold an output signal of the first amplification unit, and a second amplification unit including a second input node to which a signal output from the holding capacitance unit is input and configured to output a signal obtained by amplifying a signal level of the second input node, in which a capacitance value of the holding capacitance unit is changed according to a change in a driving force of at least one of the first amplification unit and the second amplification unit.SELECTED DRAWING: Figure 5

In one aspect, a method comprises: comparing, in a comparator, a signal level of a receive radio frequency (RF) signal to a first threshold, the receive RF signal obtained from a controllable location in an RF front end circuit; and in response to the signal level of the receive RF signal exceeding the first threshold, causing the RF front end circuit to be reconfigured from a first mode in which an input to a low noise amplifier (LNA) is coupled an antenna to a second mode in which the input to the LNA is coupled to an RF filter.