350 results about "Signal selection" patented technology

The invention discloses a suspension control fault detection and recovery method and device for a maglev train and a medium, and relates to the field of maglev trains, and the method comprises the following steps: S1, constructing a linearized suspension system model; s2, reconstructing a state vector, and generating a suspension gap estimation value; s3, constructing a health probe set, and executing a signal selection strategy; s4, detecting a slow change fault based on the statistical accumulation characteristic of the residual error, and outputting a slow change fault detection result; s5, monitoring the variation trend of the residual error, and triggering a reset mechanism to clear historical accumulated data when a reset condition is met; and S6, generating a final fault mark, and forcibly updating the fault mark to a normal state if a reset mechanism is triggered. According to the hierarchical collaborative decision-making architecture based on the maglev train lap joint structure dynamic model, the condition of performance degradation or failure does not occur in a real system by the algorithm, so that the engineering applicability and reliability of fault diagnosis are improved.

The invention relates to the technical field of dew point measurement, in particular to an intelligent temperature control system and method based on a high-precision chilled mirror dew point meter, and the system comprises a chilled mirror temperature difference positioning module, a main signal selection module, a power response matching module, an interference airflow recognition module, and a current output instruction generation module. A cold mirror end temperature difference is obtained, a section and a lifting direction are judged, synchronous measuring points are screened, a minimum deviation signal is extracted, a power section is matched, a power-on instruction is constructed, a rheumatism disturbance level is identified, parameters are spliced to generate a conduction structure, and a cold mirror temperature control instruction is output. According to the method, section identifiers are constructed through temperature differences and temperature change directions, signals are screened based on time alignment, interference is avoided, power control positions section deviation directions through difference values, disturbance identification is combined with wind speed and humidity differences, disturbance levels are refined, power-on control generates time sequence instructions through multi-parameter splicing, instruction stability and control accuracy are improved, and the method is suitable for large-scale popularization and application. And dynamic closing logic is formed.

The invention provides a graph self-encoding digital twin construction method for aero-engine vibration overrun fault diagnosis, and belongs to the field of aero-engine digital engineering maintenance and guarantee. The construction method is divided into three parts, namely an engine sensor network state correction diagram, a self-encoding model and a feedback decision, and comprises the following steps: acquiring an engine sensor signal, and selecting proper sample characteristics of data; performing denoising, normalization and resampling preprocessing on each piece of state data, constructing a time window, and dividing a training test set; constructing a graph self-coding digital twinborn body; and performing fault prediction by using the constructed digital twinborn body. According to the method, the vibration overrun fault of the engine can be efficiently identified, the normal working condition and the abnormal state can be accurately distinguished, and the accuracy and reliability of fault identification are remarkably improved, so that timely support is provided for preventive maintenance and operation decision of the engine, and a solid technical guarantee is provided for health management of the aero-engine.

The invention is suitable for the technical field of intelligent wearable devices and biological signal processing, and provides a heart rate monitoring method and system of an intelligent wearable device, and the method comprises the following steps: detecting the wearing state and the connection state of the device; waking up the sensor module to collect multi-modal data according to the wearing state and the connection state of the equipment; the multi-modal data comprises an ECG signal, a PPG signal and motion data; the multi-modal data is preprocessed, then the ECG signals and the PPG signals are corrected according to the motion data, motion interference is eliminated, and the corrected ECG signals and PPG signals are obtained; selecting a heart rate calculation mode according to the motion data and the corrected ECG signal and PPG signal, and performing real-time calculation to obtain heart rate data; abnormal recognition is carried out on the real-time heart rate data, and multi-level early warning response is carried out. According to the invention, the power consumption defect in the prior art can be solved, the interference of a motion scene is reduced, the health monitoring accuracy and reliability are improved, and the user experience and health management efficiency can be optimized.

A gate driver and a vehicle display are disclosed herein. The gate driver comprises a shift register module and a selection module. The shift register module includes first to fourth dummy shift register circuits and N shift register circuits. The first dummy shift register circuit is configured to output a first dummy signal. The second dummy shift register circuit is configured to output a second dummy signal. The third dummy shift register circuit is configured to output a third dummy signal. The fourth dummy shift register circuit is configured to output a fourth dummy signal. The selection module is configured to selectively output one of the first dummy signal and the third dummy signal and one of the second dummy signal and the fourth dummy signal according to the forward scan signal and the reverse scan signal.

A method implemented in a wireless transmit and receive unit (WTRU) may include receiving one or more reference signals; a first codebook-based precoding matrix is selected based on the one or more reference signals, and a second precoding matrix is determined based on the one or more reference signals. The method may include determining a differential precoding matrix based on the first codebook-based precoding matrix and the second precoding matrix. The method may include determining a compressed differential precoding matrix based on the differential precoding matrix. The method may include transmitting feedback information indicating the compressed differential precoding matrix.

The invention relates to the field of vehicle control of new energy vehicles, in particular to a new energy vehicle energy recovery self-learning method, which comprises the following steps: step S1, a torque-based determination step: acquiring a vehicle weight signal, a vehicle speed signal and a brake pedal opening signal of a vehicle in real time; according to the vehicle weight signal, a basic recovery torque MAP corresponding to the current vehicle weight tonnage is selected; the method comprises the following steps: S1, acquiring a vehicle speed signal and a brake pedal opening signal, looking up a table in a selected basic recovery torque MAP based on the vehicle speed signal and the brake pedal opening signal, and determining a basic recovery torque value, S2, carrying out gradient correction, and obtaining a current road gradient signal of the vehicle in real time, and S3, carrying out self-learning adjustment, and when the vehicle is in a downhill state and an energy recovery function is activated, carrying out self-learning adjustment on the vehicle. The accelerator pedal opening degree and the duration thereof are monitored in real time, and the problems that influences of the vehicle weight and the gradient are not considered at the present stage and the fault coping strategy is single are solved.

A multiply-accumulate unit comprises a first input configured to receive a first operand encoded using a two-bit encoding scheme in which a ternary value is represented by two bits, wherein identical bits indicate a non-computable value and different bits indicate a computable value. The unit further comprises a second input for receiving a second operand, a zero detection circuit with a logic gate that compares the two bits and generates a skip signal when they are identical, an arithmetic circuit for performing accumulation based on both operands, an accumulator register for storing the result, and a gating circuit that selectively enables writing to the accumulator register based on the skip signal, preventing writing when the first operand is non-computable.

The application discloses a motor driving control system, an electric driving joint and a control method thereof. The control system comprises a first control module and a second control unit. The first control module comprises a first control unit, a signal gating control unit and a motor unit connected in sequence. The first control unit is configured to generate a first control signal according to the operation feedback signal of the motor unit through a vector control algorithm. The second control unit is electrically connected with the signal gating control unit. The second control unit is configured to generate a second control signal according to the operation feedback signal of the motor unit through a reinforcement learning algorithm. The signal gating control unit is configured to select the first control signal or the second control signal as a target control signal to control the operation of the motor unit according to the operation feedback signal of the motor unit and the second control signal. The application can solve the problem that the electric driving joint cannot quickly and safely and reliably adapt to different humanoid robots and has poor adaptability.

The embodiment of the invention provides an auxiliary test circuit, a control method and related equipment, the auxiliary test circuit is arranged on a slave core particle, and the auxiliary test circuit comprises a first test pin used for inputting a first reference clock signal provided by external equipment; the first interconnection port is used for inputting a second reference clock signal provided by the main core particle; the input end of the first signal selector is respectively connected to the first test pin and the first interconnection interface, and the first signal selector is used for selecting a first reference clock signal or a second reference clock signal as a target reference clock signal to be output; and the clock signal generator is used for generating a target clock signal based on the target reference clock signal. According to the embodiment of the invention, the test of the chip of the 3D packaging technology can be realized.

A device having a level shifter includes a first stage and a second stage. The first stage includes a first device circuit and a second device circuit. The first device circuit operates in a first voltage domain, selects an input signal in response to a first select signal, and generates a first intermediate output signal based on the selected input signal. The second device circuit operates in a second voltage domain, selects an input signal in response to a second select signal, and generates a second intermediate output signal based on the selected input signal. The second stage operates in the second voltage domain, receives the first and second intermediate output signals, and generates an output signal. A method of shifting a signal from one voltage domain to another voltage domain is also disclosed.

This disclosure relates to a driving circuit, a driving chip, and a display device. The driving circuit includes a clock module and M channel modules. The clock module generates N first clock signals with a phase difference between each pair of signals. Each channel module includes a phase adjustment module, a PWM generation module, and a selection module. The phase adjustment module is connected to the clock module and is used to phase-shift the N first clock signals to obtain N second clock signals. The PWM generation module is connected to the clock module and the phase adjustment module and is used to generate a first PWM signal based on a reference clock signal and a PWM fundamental frequency, and to generate a second PWM signal based on the reference clock signal, a target clock signal, and the PWM fundamental frequency. The selection module is connected to the PWM generation module and is used to select either the first PWM signal or the second PWM signal for output based on a first selection signal, as the target PWM signal. This disclosure simplifies the circuit structure and reduces the circuit footprint.

A virtual reality (VR) system including a head mounted display (HMD), a sensor or input device, and options, selection, and display modules. The HMD displays a VR environment including sports content of a live game, a prerecorded game, or a sports channel. The options module generates an options signal to show viewing options in the VR environment. The viewing options define viewing aspects for viewing the sports content within the VR environment. The sensor or input device generates signals based on detection of movement of the HMD, movement of an eyeball of a user, user voice communication, or user contact with the input device. The selection module, based on the signals: selects the sports content and a viewing option; and generates a selection signal. The display module displays the sports content in the VR environment based on the selection signal.

This invention provides a circuit including a voltage regulator and a control circuit. The voltage regulator is configured to receive an input signal to generate an output voltage. The control circuit is configured to select one of a first reference voltage and a second reference voltage as the output reference voltage based on the output signal of the voltage regulator, and to generate a control signal based on the output reference voltage to control the voltage potential of the output voltage of the voltage regulator.

The invention relates to a position sensor circuit designed to detect a magnetic field and to provide an output indicative of a characteristic of the magnetic field. The circuit comprises a sensor (20) for generating an output signal corresponding to a magnetic field, a signal conditioning circuit (30) arranged to receive the output signal and to output a version of the output signal, a threshold circuit (40) arranged to define at least two pairs of thresholds and to store at least three current sink codes, and a comparison circuit (60) for comparing a version of the output signal with the thresholds to produce a comparison circuit output signal. A configurable logic circuit (80) is employed to select one of the at least three current sink codes based on the comparison circuit output signal. A current source circuit (90) is arranged to receive the selected current sink code and to output a current having a current value corresponding to the selected current sink code. This configuration allows the polarity or intensity of the magnetic field to be determined, with the potential to detect a fault state through a particular threshold pairing.

The application relates to a multi-channel furnace temperature acquisition device based on a multi-layer cascade analog switch circuit, wherein a power module is connected with a multi-channel signal selection module, a temperature signal processing module, an MCU module, a storage module and a display module; the output end of a temperature information acquisition module is connected with the input end of the multi-channel signal selection module; the output end of the multi-channel signal selection module is connected with the input end of the temperature signal processing module; the input and output ends of the temperature signal processing module are connected with the input and output ends of the MCU module; the input and output ends of the MCU module are connected with the input and output ends of the storage module; the output end of the MCU module is connected with the input end of the multi-channel signal selection module; and the output end of the MCU module is connected with the input end of the display module. The application meets the demand of multi-channel temperature measurement in a large space and a strong electromagnetic interference environment, and has the characteristics of high speed, high reliability, high precision, wide range and the like.

The application relates to a control device and a control method for transmitting video data by using double-edge flip-flop, which comprises a video decoder chip and a video display interface chip, and a video signal selection device is arranged between the video decoder chip and the video display interface chip; the video signal selection device comprises a double-edge flip-flop and two two-way data selectors; a positive edge input end of the double-edge flip-flop is connected with an output end of the first two-way data selector; a negative edge input end of the double-edge flip-flop is connected with an output end of the second two-way data selector; and selection signal input ends of the two two-way data selectors are connected with sel signals. The control device and the control method for transmitting video data by using double-edge flip-flop adopt the double-edge flip-flop to generate DDR and SDR signals; no matter the DDR or the SDR signal, the last stage logic of the data output is fixed, the determinacy of input and output timing is ensured, the circuit is simplified, the transmission cost is reduced, and the video data transmission efficiency is improved.

The present disclosure relates to a rotary motoric actuator system configured for precise control of valves in fluid management systems, such as HVAC and industrial processes. The actuator (100) addresses limitations of conventional systems by providing enhanced protection for internal components and improved visibility of the actuator's position. The actuator (100) supports various control signals, including proportional voltage, floating 3-point, and can be controlled using wireless RF signals, allowing for flexible operation. Some embodiments include a shaft position indicator (101) for clear visual reference, a declutch mechanism (104), and a mode selector (105) for seamless transition between manual and automated modes. The actuator (100) also includes a signal selector (501) for choosing control signal ranges and a wiring access port (510) for secure electrical connections. A novel seal arrangement (800) protects against dust and moisture, ensuring durability. Compatible with a wide range of rotary valves, the actuator (100) offers an improved solution for modern fluid management systems.

The application discloses a power device system, a communication architecture of a display and warning system and an aircraft. The application establishes a second communication path independent of an avionics system by increasing an engine interface control unit to directly connect the display and warning system, so as to avoid the risk of abnormal display of engine parameters caused by a single communication architecture. In addition, a comparison between signals of a first signal source of a comprehensive modular avionics and signals of a second signal source of the engine interface control unit and the identification of a common mode failure of the avionics network in combination with other engine conditions can avoid the problem of abnormal display of engine parameters caused by the common mode failure of the avionics network.

Methods and apparatus for driving a motor of a mechanical circulatory support device are provided. The method includes generating a pulse width modulated (PWM) drive signal, selectively filtering the PWM drive signal driving a first motor phase having a high state, sensing a back electro-motive force (back EMF) signal induced in a second motor phase not being driven by the PWM drive signal, determining a rotor position based on the back EMF signal, and modifying the PWM drive signal based on the rotor position.

The invention provides a banknote detection method, device and equipment based on an abnormal level, a medium and a product, and relates to the field of financial science and technology. The method comprises the following steps: acquiring sensor data of a to-be-detected banknote; performing preprocessing operation on the sensor data to obtain normalized sensor data; performing feature extraction operation on the normalized sensor data to obtain a to-be-input feature vector; inputting the to-be-input feature vector into a pre-trained machine learning model to obtain an abnormal level signal of the to-be-detected banknote; according to the abnormal level signal, selecting a corresponding execution environment to detect the to-be-detected banknote, obtaining a detection result, and generating an operation log; and encrypting the operation log according to a preset homomorphic encryption algorithm and a preset Hash algorithm to obtain an irreversible Hash chain. According to the method provided by the invention, the utilization efficiency of detection resources is improved by performing grading processing on the banknote detection process, and the security of the operation log is improved by performing encryption processing on the operation log.

The embodiment of the utility model provides switch equipment and a tripping latch circuit thereof. The tripping latch circuit comprises a signal transmission circuit and a feedback circuit. The signal transmission circuit comprises a tripping signal input end which is suitable for being coupled with a tripping signal input circuit so as to receive a tripping signal; the signal feedback end is suitable for receiving a feedback signal; the first control signal input end is suitable for receiving a first indication signal used for indicating whether the energy of the energy storage capacitor reaches a tripping completion energy threshold value or not; and the signal output end is suitable for being coupled with the tripping driving circuit so as to provide an output signal for the tripping driving circuit, and the signal transmission circuit is suitable for selectively transmitting the tripping signal to the signal output end to serve as the output signal based on the feedback signal and the first indication signal. The feedback circuit is coupled between the signal output end and the signal feedback end, and is suitable for generating a feedback signal based on a second indication signal and the output signal, wherein the second indication signal is used for indicating whether the energy of the energy storage capacitor reaches an energy threshold value required by tripping or not.

The embodiment of the utility model discloses an SOC internal power-on and power-off detection circuit, which comprises a voltage division module and a detection module, the detection module comprises an MUX selector, a comparator and four phase inverters, the voltage division module is composed of three or more resistors which are sequentially connected in series, the voltage division module is connected with a detected voltage end, the MUX selector comprises two paths of inputs and two selection ends, and the comparator is connected with the four phase inverters. Two paths of inputs of the MUX selector are respectively connected between the two resistors in tandem, the output end of the MUX selector is connected with the positive electrode of the input end of the comparator, the output end of the comparator outputs signals through the four phase inverters which are sequentially connected in series, and the two selection ends of the MUX selector are respectively connected with the two ends of the third phase inverter in the transmission direction of the output signals of the comparator. Compared with an existing power-on detection circuit, the power-on detection circuit has selectivity of detection threshold values, and has certain anti-ripple and anti-interference characteristics.

A method of controlling a base station in a telecommunications network, a method of training a machine learning algorithm for controlling a base station, and a base station, user equipment and computer software for performing these methods. A method of controlling a base station in a telecommunications network is provided. The base station includes a plurality of antenna ports. The method includes transmitting one or more downlink signals from the base station to one or more user equipments (UEs). The method also includes transmitting one or more uplink signals from the one or more UEs to the base station, the uplink signals including information acquired by or associated with the one or more UEs. The method further includes generating a model using one or more algorithms to selectively activate and / or deactivate one or more antenna ports of the plurality of antenna ports based on data from the base station and the one or more uplink signals from the one or more UEs.

The utility model discloses an air curtain machine with multiple communication modes. The air curtain machine comprises a control module, a first wired module, a second wired module, a wireless module and a configuration module, the configuration module comprises a first dial switch and a second dial switch; one end of the first dial switch is connected with a first general IO port of the control module, and one end of the second dial switch is connected with a second general IO port of the control module; the first dial switch and the second dial switch generate configuration signals through dial and transmit the configuration signals to the control module; the control module selects the wireless module, the first wired module or the second wired module as a communication module for communication according to the configuration signal. According to the utility model, different communication modes are set in the air curtain machine. And the configuration module is utilized to facilitate selection of a proper communication mode by installation personnel, so that later networking is facilitated. And the installation and networking convenience of the whole air curtain machine is improved. The ventilation device is mainly used in the technical field of ventilation equipment.

The present application provides a method and a device in a node for wireless communications. A first node transmits a first signal; receives a first signaling in a first resource block; and monitors a first-type signaling in a first resource block subset after a first time using a spatial parameter of a target reference signal. The first signal indicates a first reference signal out of M reference signals; a transmitter of at least one reference signal among the M reference signals is a first cell, the first cell not being added by the first node; time-domain resource occupied by the first signaling is used to determine the first time. The method above makes quick cross-cell beam handover possible and enhances the performance of cell-boundary users as well as avoids the ping-pong effect with service quality fully-guaranteed.

The present application discloses a gate drive circuit and a display panel. The gate drive circuit includes a plurality of cascaded gate drive units. Each of the gate drive units includes a stage transmission signal selection circuit, a pull-up control circuit, a pulse number reduction circuit, a first inversion circuit, a first output stage and a second output stage, and can output a second gate control signal with a greater number of pulses and a first gate control signal with a less number of pulses.

Input system (1) for inputting a code comprising a string containing at least numbers, wherein the input system (1) comprises: - a touch panel (2) configured to generate a contact detection signal (20) in response to the detection of a touch input gesture performed by a user (U) on the touch panel (2), wherein the contact detection signal (20) is an indicator of contact of one or more fingers (10) on the touch panel (2) during the touch input gesture; - a processing unit (3) configured to detect the contact detection signal (20) generated by the touch panel (2) and to select a single character depending on the contact detection signal (20) corresponding to the detected touch input gesture;wherein the input system (1) is characterized in that the processing unit (3) is configured to operate in an input mode to select numbers from a first string of characters comprising all or some of the numbers “0” to “9” by performing the following steps: - Determining that the touch input gesture is performed in the form of a main swipe movement (4) corresponding to the swipe movement of at least one finger (10) on the touch field (2) from a main starting point (41) to a main end point (42), where the main swipe movement (4) is interrupted by retracting the at least one finger (10), depending on the contact detection signal (20); - Determining a swipe movement vector (40) of the main swipe movement (4) depending on the contact detection signal (20);- Selecting a number from the first row of characters depending on the swipe movement vector (40) of the main swipe movement (4) independently of the main starting point (41) on the touch field (2).;

The invention provides a test method and platform for a target capture square wave signal frequency calculation module. The method comprises the following steps: S1, determining a plurality of target capture square wave signal waveform templates which correspond to a tested module and meet preset test requirements; s2, generating a plurality of target capture square wave signals which respectively correspond to the plurality of target capture square wave signal waveform templates, meet preset test requirements and are adjustable in single period; s3, selecting a target capture square wave signal and inputting the target capture square wave signal into the tested module; s4, executing the tested module to obtain a target capture square wave signal frequency measured value; s5, judging whether the measured frequency value of the target capture square wave signal is consistent with the expected frequency value of the target capture square wave signal or not; the target capture square wave signal frequency expected value is calculated based on a target capture square wave signal input into the tested module; and S6, under the condition of consistency, determining that the test result is passed. According to the scheme, the function test, the boundary test and the like of the target capture square wave signal frequency calculation module can be more accurately carried out.

To mitigate the influence of variations in the threshold voltage of transistors and to accurately and easily distinguish between multiple states (e.g., three or more states). This is one of the objectives. . 【Solution】A semiconductor device including a source line, a bit line, a word line, a memory cell connected to the bit line and the word line, a drive circuit for the second signal lines and the word lines that drives a plurality of second signal lines and a plurality of word lines so as to select the memory cell specified by the input address signal, a write circuit that outputs a write potential to the first signal line, a read circuit that compares the potential of the bit line input from the bit line connected to the specified memory cell with a plurality of read potentials, a control circuit that selects any one of a plurality of correction voltages based on the comparison result between the potential of the bit line and the plurality of read potentials, and a potential generation circuit that generates the write potential and the plurality of read potentials and supplies them to the write circuit and the read circuit. ​​​​​​​