1588 results about "Electric signal" patented technology

An outside handle device for a vehicle door comprises a handle main body provided at the outside of the vehicle door, a handle frame fixed to the vehicle door, a first connector provided at a vehicle body side and electrically connected with an electric signal cable at the vehicle body side, and a second connector provided at the handle main body and electrically connected with the electric component accommodated in the handle main body. The first connector and the second connector are placed with a predetermined distance when the handle main body is assembled in the handle.

A metrology system includes a light portion that outputs light and a branching portion. A part of the light output from the light portion is branched as reference light directed along a reference optical path, and part of the light is branched as measurement light directed along a measurement optical path to be reflected by a workpiece that is to be measured. The metrology system is configured to: receive combined light comprising reference light from the reference optical path and measurement light from the measurement optical path; and convert the combined light into a distance indicating electrical signal. At least one of the reference optical path or the measurement optical path comprises a dispersion portion, for which an imbalanced dispersion between the reference optical path and the measurement optical path results (e.g., which enables disambiguation between signal peaks and a corresponding determination of a distance to the workpiece).

The application discloses a night tooth grinding detection and grading method based on multi-modal signal fusion, which acquires multi-modal physiological signals including at least electromyographic signals, body movement signals and sound signals, and respectively carries out pretreatment to extract electromyographic intensity features, body movement intensity features and acoustic features; an adaptive threshold is constructed based on the electromyographic intensity features, and the adaptive threshold is dynamically adjusted in combination with the body movement intensity features to detect suspicious tooth grinding segments; the acoustic features are further fused to confirm the suspicious tooth grinding segments, determine a tooth grinding event; and the tooth grinding event is graded and output according to intensity features, duration features and multi-modal consistency features of the tooth grinding event; the application effectively reduces the false alarm rate, improves the accuracy and stability of the night tooth grinding detection through the multi-modal signal fusion and the adaptive threshold judgment mechanism, and has good practical value.

An example assembly for detecting opening events of an item includes: a wireless communications tag. A memory of the wireless communications tag is configured to store an opening indicator. A piezoelectric element is configured to be disposed between two mating portions of a closing structure of the item. The piezoelectric element is loaded when the two portions are mated and unloaded when the two portions of the closing structure are unmated. The piezoelectric element is configured to output an electric signal that can be used by the wireless communications tag, e.g., to cause a logic circuit of the wireless communications tag to update the opening indicator when the piezoelectric element is unloaded.

This invention discloses a preprocessing method for highly polluted pediatric EEG data, belonging to the field of EEG signal processing technology. The invention proposes a robust motion artifact detection method based on a multi-channel voting mechanism. This method overcomes the sensitivity of single-channel detection to transient noise through multi-channel joint decision-making, automatically identifying time periods requiring restoration. A comprehensive preprocessing workflow integrating PCHIP interpolation restoration, adaptive Bayesian wavelet denoising, bandpass filtering, and independent component analysis is designed. This workflow is validated using real pediatric continuous task EEG data. This invention demonstrates excellent performance in preserving frequency band information and improving the weighted signal-to-noise ratio, achieving an average accuracy of 96.4% (205 test cases) and a maximum of 100% based on permutation entropy feature classification. This invention effectively solves the preprocessing challenge of pediatric EEG data in high-noise environments, significantly improving the accuracy and reliability of subsequent classification tasks.

The application discloses an atomizer and an atomizing device, comprising a housing assembly, an atomizing assembly, a gating member and a blocking member. The housing assembly comprises a first liquid tank, a second liquid tank and a liquid guide hole connecting the first liquid tank and the second liquid tank, and the first liquid tank is used for storing an atomizing substrate. The atomizing assembly is arranged in the second liquid tank and is used for atomizing the atomizing substrate into aerosol. The gating member is arranged in the housing assembly, and the blocking member abuts and seals the liquid guide hole. The gating member is configured to move the blocking member to expose the liquid guide hole and form a liquid path connecting the first liquid tank and the second liquid tank in response to an electrical signal generated by user suction. The gating member is located outside the liquid path, and the blocking member is located in the liquid path. When the atomizer is used, the blocking member can be moved by the gating member to open the liquid guide hole to supplement the second liquid tank. When the atomizer is not used, the blocking member can abut and seal the liquid guide hole to avoid liquid leakage.

The present technology relates to an information processing apparatus capable of more easily determining a maintenance time by using event data. The information processing apparatus includes a state estimation unit that estimates a state of an abrasive stone by using event data provided from an event sensor that outputs a temporal change in an electric signal obtained by photoelectrically converting a light signal as the event data, and outputs a result of the estimation. The present technology can be applied to, for example, an information processing system that notifies a maintenance time of an abrasive stone of a machine tool, and the like.

The invention relates to a method for detecting the arrival of a liquid front in a valve (10) comprising: - a step of applying a control signal (Uper) to the valve so as to continuously switch the valve (10) between two switching positions, namely an open position and a closed position, the duration between the transition from one switching position to the other corresponding to one operating cycle, - a step of measuring at least one parameter of an electrical signal (Irep) of the valve (10) during each operating cycle, and - a step of detecting the arrival of a liquid front in the valve (10) based on a temporal change in the parameter of the electrical signal (Irep) of the valve (10). Figure 1

This application relates to the field of insulated switch application technology, and particularly to a method and apparatus for characterizing partial discharge features in ultra-high voltage direct current (UHVDC) GIS. The method includes: generating a partial discharge pulse sequence based on the light signals generated by electroluminescence and gas ionization emission in the UHVDC gas-insulated switchgear; generating a spectrum of at least one parameter pair based on the amplitude and corresponding time of the partial discharge pulses; and generating a feature fingerprint map of at least one parameter pair based on the spectrum. The method also involves extracting at least one statistical feature from the kernel density sequence of the at least one parameter pair based on the feature fingerprint map, and generating a characterization result of the partial discharge feature based on the at least one statistical feature. This solves the problem that partial discharge detection is easily affected by electromagnetic interference, mechanical vibration, and environmental noise, making it difficult to effectively extract and accurately identify the actual partial discharge signal, thus affecting the accuracy and reliability of the detection results.

The application provides a traction motor health diagnosis method and system, the method comprising: obtaining a plurality of existing electrical signals of a traction motor from a traction control unit of a converter, and performing equal-angle resampling and data preprocessing on the plurality of existing electrical signals respectively to obtain a plurality of equal-angle dimensionless stationary signals irrelevant to rotation speed, working condition and load; performing demodulation on the plurality of equal-angle dimensionless stationary signals respectively and extracting a plurality of fault feature indexes by using a signal time-frequency analysis method; taking the plurality of fault feature indexes as inputs, applying a preset multiple-input multiple-output diagnosis model to perform fault diagnosis, and outputting a fault mode of the traction motor and a severity corresponding to the fault mode; and performing health management on the traction motor according to the plurality of fault feature indexes. The application can effectively eliminate diagnosis errors caused by PWM power supply harmonics, variable rotation speed and variable load transient processes, and improve the accuracy of non-stationary weak signal feature extraction and fault diagnosis.

The application relates to the field of optical communication technology, and provides a four-level modulation receiving device and method based on double-polarization double-binary superposition, which comprises a transmitting module, a transmission link and a receiving module; the transmitting module is used for outputting a first binary baseband signal, outputting a first three-level double-binary electrical signal, outputting a second binary baseband signal, outputting a second three-level double-binary electrical signal, performing polarization orthogonal superposition on the first three-level double-binary electrical signal and the second three-level double-binary electrical signal, and outputting one superimposed optical signal; the transmission link is used for transmitting the one superimposed optical signal; and the receiving module is used for receiving the one superimposed optical signal and restoring the one superimposed optical signal into the first binary baseband signal and the second binary baseband signal. The application realizes effective unification of high dispersion tolerance and high spectral efficiency by superimposing two double-binary signals on orthogonal polarization states.

This invention relates to an ultrasonic-assisted laser cleaning device for the inner wall of an air intake using negative pressure adsorption, belonging to the field of aircraft maintenance and surface treatment. It includes: a housing with an opening on one side of its working surface, and a flexible sealing member circumferentially disposed around the opening; a laser cleaning head disposed inside the housing; an ultrasonic amplitude transformer arranged in a ring around the laser cleaning area; an ultrasonic transducer connected to the ultrasonic amplitude transformer; a negative pressure suction unit connected to the housing for creating a negative pressure airflow field within the housing; and a high-pressure gas injection unit disposed opposite to the negative pressure suction unit for assisting in the formation of the airflow field. The ultrasonic amplitude transformer has a ring-shaped structure and is arranged in a ring array on the inner wall of the housing, with the ultrasonic transducer mounted thereon, converting electrical signals into ultrasonic vibrations via piezoelectric ceramics. This invention, by combining ultrasonic technology with laser cleaning, can adapt to cleaning areas with different radii of curvature, thereby achieving all-position cleaning.

1. Name of the product in this design: Transparent Dual-Polarized Antenna. 2. Purpose of this design: To receive mobile phone signals from the surrounding environment, convert them into electrical signals, and amplify them to improve signal stability and strength, thereby solving the problem of weak indoor signals. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Submitting the views is sufficient to express the appearance design; the top and bottom views are omitted. 6. Other situations requiring explanation: This design is made of transparent material.

This application provides a method and apparatus for monitoring the ultra-high frequency partial discharge (UHF) oscillation characteristics of a hydro-generator, relating to the field of signal processing technology. The method includes: acquiring a partial discharge signal; preprocessing the partial discharge signal to obtain a preprocessed signal; extracting the first-order envelope of the preprocessed signal, and obtaining a second-order envelope based on the first-order envelope; and processing the pulses in the partial discharge signal based on the second-order envelope to obtain a processed partial discharge signal. The implementation provided in this application better captures subtle changes and attenuation behavior in the partial discharge signal, improves the accuracy of partial discharge signal processing, and meets the requirements for rapid and real-time monitoring of partial discharge and resistance to interference in complex electromagnetic environments.

A package includes a first leadframe including a plurality of leads and a conductor, a first semiconductor die mounted on a first surface of the first leadframe and attached to a first subset of the plurality of leads and the conductor, and a second semiconductor die mounted on the first surface of the first leadframe and attached a second subset of the plurality of leads and the conductor. The conductor provides a direct electrical connection for an electrical signal between the first semiconductor die and the second semiconductor die. The package further includes a second leadframe. The first leadframe is mounted on the second leadframe via a second surface of the first leadframe, the second surface opposite the first surface. The second leadframe provides a ground return path between the first semiconductor die and the second semiconductor die for the electrical signal.

The present invention provides an information processing device that can suppress the deterioration of the reading accuracy of contactless IC cards and the input detection accuracy of electrical signal inputs, even when reading information held by contactless IC cards and cards other than contactless IC cards. [Solution] The information processing device comprises a first reading unit that electrically reads first information held by a first card without contact, a second reading unit that electrically or magnetically reads second information held by a second card by contact, an input detection unit that electrically detects contact or proximity of an object as input, and a control unit electrically connected to the first reading unit, the second reading unit, and the input detection unit. The control unit exclusively controls whether reading by the first reading unit and whether input detection by the input detection unit are possible based on the detection of the placement of the first card to a predetermined position relative to the first reading unit or the detection of the placement of the second card to a predetermined position relative to the second reading unit.

This invention discloses a vehicle-mounted dual-optical-comb system for outdoor testing, comprising an oscillator module, a power amplifier module, a frequency conversion module, a gas measurement module, a signal detection, acquisition, and processing module, and a vehicle-mounted platform module. The oscillator module generates two optical frequency comb signals with slightly different repetition frequencies. The power amplifier module amplifies the two optical frequency comb signals. The frequency conversion module outputs a combined dual-optical-comb beam. The gas measurement module enables the dual-optical-comb beam to interact with the gas to be tested in an open environment. The signal detection, acquisition, and processing module receives the optical signal absorbed by the gas to be tested, converts it into an electrical signal, and acquires and processes the electrical signal to obtain the absorption spectrum information of the gas to be tested. The vehicle-mounted platform module is used to fix and install each module. The advantages of this invention are: stable operation, strong resistance to environmental interference, low power consumption, and suitability for long-term vehicle-mounted operation.

A system includes a projector that projects a light pattern having a time-domain modulation onto an object, the time-domain modulation including an integer number of adjacent modulation cycles. The system also includes a first time of flight (ToF) camera having a lens and a two-dimensional (2D) pixel array that converts light reflected by the object into an electrical signal. The at least one processor determines three-dimensional (3D) coordinates of a point of the object based at least in part on the electrical signal, the baseline length, the time-domain modulation, and the velocity of light in the air.

The present application relates to the technical field of new energy vehicle NVH testing, and discloses a range extender transient noise sound quality evaluation method based on physiological signal correction, which constructs a double-branch neural network by using in-vehicle noise audio signals, subject EEG signals and subjective scores under the transient working condition of the range extender, the audio branch outputs the objective benchmark score, and the EEG branch outputs the subjective bias correction amount; the model is trained by using a joint loss function that fuses the score fitting loss, the objective consistency constraint loss and the bias regularization loss; in the inference stage, the objective sound quality score can be output by only inputting the audio features. The present application decouples the noise objective quality and the evaluator's physiological bias, effectively eliminates the interference of individual differences, emotions and fatigue states on the evaluation results, improves the evaluation stability and repeatability, realizes efficient, accurate and robust objective evaluation of the range extender transient noise without relying on EEG, and is suitable for NVH performance testing and optimization in the vehicle development stage.

The application provides a distributed optical fiber acoustic wave sensing system and a pattern recognition method. The application relates to the fields of optical fiber sensing and pattern recognition, and the system comprises the following steps: continuous coherent light emitted by a narrow-line-width laser is split into two paths by a beam splitting fiber coupler, one path is used as local reference light, and the other path is used as probe light; the probe light is modulated into optical pulses in an acousto-optic modulator driven by a waveform generator, and the optical pulses are injected into a measured sensing optical fiber through a fiber loop; Rayleigh backscattering light returned through the measured sensing optical fiber is mixed with the local reference light through the fiber loop, and the mixed light is decomposed into two orthogonal polarized light beams in a polarization beam splitter and is transmitted to a first balanced photodetector and a second balanced photodetector respectively to be converted into electrical signals; and the two orthogonal interference electrical signals are synchronously collected by a data acquisition card and are sent to a host computer for demodulation. The application provides a new distributed acoustic wave monitoring method with high reliability and high generalization ability, and has extremely high engineering popularization value.

An apparatus and safety system usable in, responding to an unauthorized possession of a vehicle configured to transport at least one person, including a vehicle safety system associated therewith, the safety system including to at least one of: a) device to generate at least one form of detectable signal and; b) a device to generate an electronic signal; and c) an apparatus which generates an input to cause the system to generate at least one of: i) the at least one form of detectable audible signal that can be sensed by persons in the vicinity of the vehicle; ii) the electronic signal; and iii) the at least one image of a person in / on the vehicle. The system is configured so that at least one of the at least one form of detectable signal, the electronic signal, and the at least one image is generated after a time delay following the generation of the input to the safety system. The device to generate an electric signal and the system are protected in a protective case.

An electric hair dryer capable of automatically adjusting airflow and temperature, the electric hair dryer comprising a housing, a driving assembly and a heating assembly being provided in a main air duct, and a control assembly being provided on the housing. The housing is provided with a temperature sensor and a distance sensor close to an air outlet; when at different distances from the human hair, the distance sensor feeds back different distance electrical signals to the control assembly; on the basis of the different distance electrical signals, the control assembly adjusts the driving assembly to different power levels; the temperature sensor measures the surface temperature of the hair and feeds back a temperature electrical signal to the control assembly, and, on the basis of the difference between the temperature electrical signal and a target temperature corresponding to a respective distance, the control assembly adjusts the power of the heating assembly, such that the surface temperature of the hair at the current distance is consistent with the set target temperature. Providing the temperature sensor and the distance sensor at the air outlet enables the electric hair dryer to perform adjustment in real time on the basis of actual usage conditions of users.

A robotic tool changer includes a master-side assembly that couples to a robotic arm, and a tool-side assembly that couples to, and is interposed between, the master-side assembly and a tool used by a robot. Additionally, a locking mechanism and a force / torque sensor are integrated into one of the master-side and tool-side assemblies. The locking mechanism moves between a locked position and an unlocked position to lock and unlock the master-side assembly to and from the tool-side assembly. The force / torque sensor includes sensing structures that elastically deform responsive to an applied force and transducers affixed to the sensing structures. The transducers send electrical signals representing a magnitude and a direction of a detected applied force to a measurement circuit. The force / torque sensor, a part of the locking mechanism, and the master-side or tool-side assembly into which they are integrated may form unitary member.

The utility model provides a kind of deslagging machine water replenishing system, it is related to the technical field of deslagging flushing equipment, pressure tank structure includes pressure detection component, pressure detection component is connected with water supply structure electric signal, pressure detection component is used to detect the air pressure in pressure tank structure and sends electric signal to water supply structure, to make water supply structure open or close according to the electric signal of pressure detection component;Deslagging machine structure includes deslagging machine water replenishing valve and liquid level detection component, deslagging machine water replenishing valve is connected with the water outlet end of pressure tank structure;Liquid level detection component is connected with deslagging machine water replenishing valve electric signal, and liquid level detection component is used to detect the liquid level height of deslagging machine structure and sends electric signal to deslagging machine water replenishing valve, to make deslagging machine water replenishing valve open or close according to the electric signal of liquid level detection component.The utility model has alleviated the phenomenon that deslagging machine is caused by silt accumulation in prior art to cause water replenishing failure, full water overflow and water shortage dry ash, and further influence the technical problem of slag pit environment.

This disclosure relates to an antenna module and an electronic device. The antenna module includes: a first radiating stub, a second radiating stub, a third radiating stub, and a feed terminal; the second radiating stub is disposed between the first and third radiating stubs; a first gap is formed between the second and first radiating stubs; a second gap is formed between the second and third radiating stubs; the feed terminal is connected to a first upper frame point of the second radiating stub and is used to output a feed signal to the second radiating stub, enabling the antenna module to operate in a first frequency band, a second frequency band, and a third frequency band; wherein the first frequency band includes a low-frequency band; the second frequency band includes a mid-frequency band; and the third frequency band includes a high-frequency band. Embodiments of this disclosure can cover more frequency bands while reducing the space occupied.

The utility model provides a kind of ultrasonic flaw detection system, in the system, controller controls transmitting circuit to generate high voltage pulse;High voltage circuit provides high voltage power supply for transmitting circuit;Transmitting circuit emits high voltage pulse to transducer, drives transducer to emit ultrasonic signal;Transducer emits the ultrasonic signal of set frequency to the sample to be measured, and receives the flaw detection echo signal returned by the sample to be measured, conversion is input to gain amplifier circuit as electric signal;Gain amplifier circuit carries out gain amplification processing to the electric signal corresponding to flaw detection echo signal;Analog-digital converter carries out analog-digital conversion to flaw detection echo signal, obtains flaw detection echo digital signal, and input to controller.The utility model improves system structure, realizes the feature information extraction and noise reduction processing of high-speed echo signal, also improve the signal-to-noise ratio of echo signal, effectively solve the problem of system missed detection caused by small sample defect, weak echo signal.

The application discloses a kind of garden plant health condition detection and early warning system based on spectral analysis, including adjustable frequency excitation light source, fluorescence detector, quadrature phase-locked demodulation module, phase frequency characteristic analysis module, early warning control unit and early warning output terminal, adjustable frequency excitation light source emits broadband sweep frequency modulation perturbation excitation light, quadrature phase-locked demodulation module executes operation filtering natural background stray light to the electric signal collected, phase frequency characteristic analysis module extracts characteristic relaxation frequency parameter when absolute phase delay parameter reaches forty-five degrees phase angle, early warning control unit sends instruction lock frequency and applies saturated light flash pulse, system calculates dynamic apparent electron transfer rate parameter, and according to temperature drift compensation baseline, executes double tolerance threshold comparison determination plant physiological stress state.The application avoids the defect of detection frequency band misplacement, eliminates the interference of strong background light and air temperature fluctuation, realizes the multi-dimensional joint early warning of early physiological stress.

The application relates to the technical field of semiconductors, and provides a micro health detection device. The device comprises a chip-level light source for emitting detection light; a photodiode module stacked above the chip-level light source and facing the light-emitting front surface of the chip-level light source, for receiving light signals transmitted or reflected by the detection light and converting the light signals into electric signals; and an analog front end module stacked above the photodiode module, for receiving the electric signals sent by the photodiode module and processing the electric signals. The device solves the problem of large size of the health detection device in the prior art, reduces the size of the health detection device, and makes the health detection device more suitable for wearable or portable health monitoring applications.

This utility model discloses a switching device, including a voltage comparison module electrically connected to an induction amplifier module, a water pump, and a power supply component. The power supply component supplies power to the power supply component, voltage comparison module, induction amplifier module, and water pump. The induction amplifier module senses the alternating electric field of the outdoor unit of the air conditioner and generates induced current and voltage. The voltage comparison module receives the signal from the induction amplifier module and controls the start and stop of the water pump. The beneficial effects of this utility model are that the induction amplifier module can determine whether the outdoor unit of the air conditioner is powered on and transmits the induced electrical signal to the voltage comparison module. The voltage comparison module compares the received signal voltage with a reference voltage to determine whether to supply power to the water pump. Furthermore, an alarm component can determine whether the water pump has malfunctioned and provide a buzzer warning. This device can automatically add or stop water supply based on the start and stop status of the outdoor unit of the air conditioner, thereby saving energy and water resources.