115 results about "Wave form" patented technology

The invention relates to the technical field of laser, and provides a laser system with a controllable pulse state and a control method thereof. The control method of the laser system with the controllable pulse state comprises the steps that under the conditions that the cavity length of an FP cavity is in an initial fit state and the air pressure in the FP cavity is standard air pressure, a pump light source is controlled to adjust the pump power according to a first set; in response to the fact that the target pulse interval is smaller than the initial pulse interval, the pump light source is controlled to keep the target power unchanged, the air pressure of the FP cavity is adjusted to be within the preset range, and the cavity length of the FP cavity is adjusted through a second set; determining a target cavity length; controlling the laser to be output in a first pulse state; and controlling the laser to output in a second pulse state. According to the control method, the controllably generated abnormal wave form with the high peak power is introduced according to the preset frame structure to serve as a physical layer disturbance or random segment, and the reliability and safety of system signal transmission are improved under the condition that data segment transmission is not affected.

The invention discloses an intrusive rock alteration zone reservoir prediction method comprising the following steps: S1, analyzing and identifying sensitive logging parameters of an intrusive rock alteration zone, and establishing a dominant lithology identification combination chart; s2, establishing a model, and determining seismic response characteristics of intrusive rocks; s3, quantitative evaluation is carried out on the intrusive rock; s4, reservoir prediction of the intrusive rock alteration zone is carried out; and S5, quantitatively predicting the reservoir distribution and thickness of the intrusive rock alteration zone. According to the method, through different lithologic logging response characteristics, a multi-parameter intersection advantage lithologic chart is established, wave group characteristics of intrusive rocks are determined, and the distribution range and thickness of the intrusive rocks are identified by utilizing wave impedance inversion and optimizing attributes of a product of a reflection intensity alternating current component and a phase cosine; and waveform indication inversion of the invaded rock mud shale alteration zone is carried out by using natural potential as a characteristic curve, and reservoir distribution and thickness of the invaded rock alteration zone are predicted and are basically consistent with actual drilling thickness.

The present disclosure provides a QRS wave form detection method and system based on electrocardiogram QRS wave position, relates to the technical field of electrocardiogram signal processing, and comprises the following steps: acquiring electrocardiogram data to be detected, and pre-processing the electrocardiogram data; identifying the start and end point positions of QRS waves in the electrocardiogram data, and intercepting the QRS wave segments corresponding to all the identified QRS wave start and end point positions; performing a shift operation on the QRS wave segments to record the QRS wave data positions, sequentially numbering, then cutting the QRS wave data according to the recorded position data points and the front and rear two position data points, calculating the absolute value of the cut QRS wave data, taking the maximum value, and judging the current QRS wave form according to a threshold value; and the present disclosure can improve the efficiency of QRS wave form detection.

The application discloses a sound source accurate positioning method based on an acoustic sensor array, and comprises the following steps: step one, inputting an audio segment and capturing the audio segment through an acoustic sensor; step two, making an audio image, that is, making a waveform image of the input audio; step three, acquiring a characteristic waveform, that is, cutting the waveform image to intercept a sound waveform that changes; step four, waveform analysis, that is, analyzing the intercepted waveform image and the input audio segment to obtain characteristic information contained in the audio; and step five, characteristic information analysis, that is, analyzing the information characteristic obtained in step four. In the implementation of the scheme, the characteristic in the audio segment is analyzed, the characteristic value is anchored, and then the array sound source is analyzed through the characteristic value, so that the characteristic value can be quickly and accurately positioned, the comparison range is reduced, the comparison judgment speed is accelerated, and the result accuracy is improved.

This invention provides a washing machine, an automatic dispenser, and a control method thereof. The automatic dispenser uses an ultrasonic generator to emit ultrasonic waves; an upper reflective surface is located above the nozzle; an oblique reflective surface is located below the nozzle. After passing through the oblique reflective surface, the ultrasonic waves form an upward-propagating wave, and after passing through the upper reflective surface, they form a downward-propagating wave. The upward and downward waves superimpose to form a standing wave. The vertical distance between the ultrasonic generator and the upper reflective surface satisfies the resonant cavity condition. The nozzle is located at the acoustic pressure node of the standing wave. The controller acquires the droplet mass that the maximum acoustic levitation force of the ultrasonic wave can support, obtains the dispensing mass, and calculates the target number of dispensing droplets based on the droplet mass that the maximum acoustic levitation force of the ultrasonic wave can support and the dispensing mass. When the counting detector detects that the number of droplets has reached the target number, the nozzle is controlled to stop dispensing droplets. This invention is based on acoustic levitation technology, has a relatively small error, and high dispensing accuracy, offering significant advantages for dispensing concentrated liquids.

The utility model relates to the related technical field of traffic engineering safety guardrail machining, in particular to a cutting device for traffic engineering safety guardrail machining. Supporting rods are arranged at the four corners of the top of the rack, and the top ends of the supporting rods are fixedly connected with the top plate. Under the matching action of the rack, the supporting rod, the top plate, the wave-shaped guardrail body, the pressing plate, the supporting plate, the fixing plate and the self-locking mechanism, pressure can be applied to the sunken position of the wave-shaped guardrail in a downward pressing mode, the wave-shaped guardrail can be fixed, deformation can be avoided when the wave-shaped guardrail is fixed, and the service life of the wave-shaped guardrail is prolonged. The cutting-off device for traffic engineering safety guardrail machining solves the problems that according to an existing cutting-off device for traffic engineering safety guardrail machining, two stabilizing plates are matched to clamp the two sides of a guardrail through the weight of the guardrail, but due to the fact that a wave-shaped guardrail is thin and is in a wave shape, when the two sides of the wave-shaped guardrail are clamped, the wave-shaped guardrail is prone to deformation.

The present application relates to a kind of line fault single-ended traveling wave identification and wave head calibration method based on waveform Turing sensitive angle detection, belong to transmission line fault location technical field.First, time-domain waveform is imaged, in the perspective of digital image, the most sensitive angle of wave head mutation is detected using Radon transformation variable-angle projection, and the non-axis symmetry characteristics on the two sides of the most sensitive angle of wave head are used for detection effectiveness check, wave head group containing multiple wave heads can be effectively detected, with self-checking capability, it can be applied to various bus outgoing line types.The wave head calibration method proposed in the present application has strong robustness, and the detection result is not affected by fault conditions, signal conditioning link, algorithm itself parameter.

The present invention is a reconfigurable antenna, which includes a total reflection part, a partial reflection part, a partial transmission part, and a radiation part stacked in sequence. A resonant cavity is formed between the partial reflection part and the total reflection part. The radiation part is arranged in the resonant cavity. So that the electromagnetic wave radiated by the radiation part is reflected in the resonant cavity. The electromagnetic wave forms constructive interference during the reflection of the resonant cavity. The resonant cavity makes the electromagnetic wave form the same phase electromagnetic wave and radiation penetrating the reflection part. The partial transmission part is regulated to form beam reconstruction conditions, and the same-phase electromagnetic waves are formed into beams and radiated into space by the beam control conditions.

The invention provides a ground material type detection method and equipment, which can be applied to the technical field of autonomous mobile equipment. The method comprises the following steps: transmitting ultrasonic waves to the ground, and receiving echoes of the ultrasonic waves to obtain an echo waveform diagram; the longitudinal axis of the echo waveform diagram is positively correlated with the echo intensity, and the transverse axis of the echo waveform diagram is positively correlated with the time; identifying wave troughs in the echo waveform graph; determining the number of echo groups in the echo waveform diagram according to the wave troughs; and determining a ground material type according to the number of the echo groups. The ground material type is detected through the number of the echo groups of the ultrasonic waves, and the detection accuracy of the ground material type can be improved. Moreover, only one ultrasonic sensor is needed to detect the type of the ground material, the occupied space is small, and the cost of the autonomous mobile equipment is reduced.

The application discloses a pig drinking water container and application thereof, which comprises a flexible material layer with a leakage prevention function and a wave form control mechanism, and the wave form control mechanism is used for controlling the flexible material layer to switch to a bowl-shaped structure and a cap-shaped structure as required. The pig drinking water container can be applied in pig feeding and pig welfare. By adopting the scheme of the application, the bowl-adhered residual substances can be smoothly, quickly and effectively discharged without using a water source or an air source, the drinking water container can be kept dry and clean at all times within a specified time period, the pig drinking water is effectively combined with the pig welfare interest play, the drinking water container can be flexibly switched to various different shapes for the pigs to play, the drinking water container can be alternatively used as a feeding trough and a drinking trough, and the pig drinking water container is diversified in functions.

In one embodiment, an interconnect apparatus (e.g., an interposer apparatus) includes a plurality of interconnect probes that each include a wave spring structure that includes a plurality of stacked wave spring discs. The wave spring discs may be formed in a sinusoidal wave form shape, or in another wave form shape.

The present invention discloses a vibration-damping and noise-reducing superstructure design method, comprising the following steps: S1. Obtaining basic parameters and design input information of a base structure; S2. Calculating the original wave dynamics characteristics of the base structure to obtain the basic wave form of the base structure; S3. Introducing an additional mass cost as a constraint condition, updating the calculated wave dynamics characteristics of the base structure to obtain multiple acoustically weak frequency points; S4. Conducting structural design of a metamaterial basic unit; S5. Layout design of the metamaterial basic unit to form a vibration-damping and noise-reducing superstructure; S6. Calculating the wave dynamics characteristics of the vibration-damping and noise-reducing superstructure and comparing and judging them with target design indicators A and B, and continuously running the program until both target A and target B are met. The present invention also specifically discloses a metamaterial basic unit. The present invention has the advantage of being able to effectively reduce vibration and noise at different frequencies while meeting lightweight requirements.

The invention relates to the field of power cable fault monitoring, and discloses an intelligent chip-assisted cable fault accurate positioning system and a cable. The system comprises a test host and micro-control nodes distributed along the cable; the system is provided with a pulse receiving and transmitting module, a reference acquisition module, a centroid extraction module, a wave velocity calibration module, a dynamic windowing module and a positioning calculation module, and a micro-control node is pre-implanted in the cable. The system constructs a local physical baseline to obtain a centroid timestamp and calculate a real-time local wave velocity, intercepts reflected wave characteristics in combination with a dynamic integral time window, and synthesizes absolute position coordinates of a target. Absolute time synchronization errors among distributed nodes are eliminated by constructing a local physical baseline, and a dynamic windowing mechanism is utilized to adapt to wave velocity change and waveform dispersion caused by aging of a cable medium, so that the problem of feature extraction instability caused by a fixed window is solved, and the absolute precision of fault positioning is improved.

The application discloses a gynecological millimeter wave therapeutic instrument, which comprises a host computer, an antenna mechanism connected with the host computer, the antenna mechanism comprising sequentially connected circular waveguide, millimeter wave antenna and antenna protective cover, the host computer and the antenna mechanism being connected along the same axial direction. The host computer comprises a millimeter wave source and a wave form conversion and attenuation device, the wave form conversion and attenuation device comprising an attenuation unit and a wave form conversion unit integrated into one mechanism, the attenuation unit being connected with the millimeter wave source through a flange, the wave form conversion unit being connected with the circular waveguide, the attenuation unit being adapted to attenuate the millimeter wave power emitted by the millimeter wave source to a target value, and the wave form conversion unit being adapted to convert the field type of the millimeter wave after power attenuation from TE10 wave in the rectangular waveguide into circular polarization wave in the circular waveguide, so as to provide the required millimeter wave output power for the millimeter wave antenna. The gynecological therapeutic instrument can perform accurate irradiation treatment in the gynecological cavity, and can ensure a larger millimeter wave adjustment range without changing the millimeter wave source.

The invention discloses a closed-loop adaptive editable group wave generation method based on algorithm driving, and the method comprises the steps: obtaining a to-be-generated target oscillogram, carrying out the digital processing and data fitting, and extracting a feature parameter set of a target waveform; based on waveform characteristic parameters, algorithm modeling and an optimization algorithm are adopted to calculate generation control parameters of each waveform, waveform generation is achieved by controlling a semiconductor switch of a waveform generation circuit, and it is ensured that the output waveform is highly matched with the target waveform. Characteristics of output waveforms are collected in real time through a high-speed digital signal processing module, and control parameters are generated through self-adaptive feedback correction waveforms according to errors between data collected in real time and target waveforms, so that precision and stability of the output waveforms are guaranteed. According to the method, the waveform generation process can be optimized in real time in a dynamic environment through a closed-loop adaptive mechanism, the performance of a group wave generation system is remarkably improved, and the method is particularly suitable for high-precision waveform generation and test application.

The present application relates to gear machining technical field, especially a kind of variable tooth thickness modification machining method for double lead worm gear and worm, including the wave form distortion rate of idle cutting force of hobbing cutter and torsional stiffness coefficient;Real-time monitoring cutting force wave form distortion rate and tool torsional deformation, calculate disturbance intensity index to divide disturbance level and set detection opportunity;Through the tooth thickness curve of actual measurement, tooth thickness change rate coefficient is obtained to judge machining quality;The tooth thickness deviation curve of unqualified tooth groove is analyzed to determine the dominant interference type, and the spindle speed or tool pose is regulated based on disturbance level;The control effect is verified by attenuation coefficient;When not up to standard, attenuation difference is used to optimize control coefficient;Finally, the overall quality of worm is evaluated by the consistency coefficient of tooth thickness change rate of each tooth groove of full tooth surface.The present application solves the problem that the full tooth surface consistency of formed worm is low due to the resonance and deformation disturbance of asymmetric characteristics of hobbing cutter in variable tooth thickness worm machining.

The present application relates to the technical field of low-voltage switch cabinet, in particular to a low-voltage switch cabinet with sound insulation and noise reduction function; The fixed plate is arranged on the side of the heat dissipation window, the movable plate is arranged on the side, the flexible film is fixed to the upper and lower ends of the fixed plate and the movable plate, the flexible film is connected to the fixed plate and the movable plate, the first recess is formed in the side surface of the fixed plate and the movable plate, the first transmission plate is movably arranged in the inner wall of the first recess, the center shaft and the two side shafts are movably inserted into the side surface of the cover, the transmission belt is movably arranged on the outer surface of the center shaft and the two side shafts, the noise dispersed from the heat dissipation window can only be diffused through the gap between the two movable plates, a plurality of assemblies are arranged in the cover, the noise is propagated in a wave form, the distance of noise propagation out of the main body of the switch cabinet is lengthened, the energy of the noise is greatly consumed, the noise volume dispersed out of the cover is small, and the noise reduction of the low-voltage switch cabinet is realized.

The application relates to an anchor rod length detection auxiliary device and an anchor rod structure. The application is suitable for the technical field of anchor rod quality detection. The application aims to solve the technical problem of providing an anchor rod length detection auxiliary device and an anchor rod structure. The application adopts the technical scheme that the anchor rod length detection auxiliary device comprises a concave end cap, the concave end cap can be installed at the rock-entering end of the anchor rod, the concave end cap is made of polyethylene, and the interface between the concave end cap and the rock-entering end of the anchor rod can facilitate the emergence of a reflected wave form.

The utility model relates to the technical field of corrugated beam steel guardrail installation, in particular to an auxiliary tool for installing a corrugated beam steel guardrail. According to the technical scheme, the auxiliary tool for installing the corrugated beam steel guardrail comprises a guardrail hoisting and adjusting assembly and further comprises a pushing tool car. A pushing tool car is arranged on one side of the guardrail hoisting adjusting assembly; the guardrail hoisting adjusting assembly comprises a servo motor, an angle adjusting block, an arc-shaped connecting shaft, a corrugated beam steel placing frame, an air cylinder back plate, a clamping air cylinder, an anti-slip strip and a pneumatic rod. The corrugated beam steel guardrail penetrates through the holes in the corrugated beam steel placing frames to be fixed, then the servo motor drives the angle adjusting block and the arc-shaped connecting shaft to rotate, and therefore the relative horizontal inclination angle of the two corrugated beam steel placing frames is driven to achieve the guardrail positioning and adjusting function.

The application relates to the technical field of medical devices, in particular to an oscillation mixing device, a sample analysis system and a control method thereof. The oscillation mixing device comprises an oscillation assembly, including an oscillation turntable, an oscillation base, an oscillation support arranged on the oscillation base and capable of reciprocating along the radial direction of the oscillation turntable and an oscillation driving mechanism; a wave form assembly includes a wave form turntable and a wave form driving mechanism, the wave form turntable is provided with a plurality of alternating convex parts and concave parts, the oscillation support alternately abuts against the convex parts and the concave parts to reciprocate along the radial direction of the oscillation turntable; a base assembly includes a base and an incubation cover, the incubation cover is provided with an inlet and an outlet; an inlet and outlet assembly includes an inlet and outlet support fixedly connected with the incubation cover and a positioning piece group abutting against the oscillation support to lock the oscillation support at the inlet and the outlet. The oscillation mixing device, the sample analysis system and the control method solve the technical problem that substances on the mixing mechanism can be taken and placed in time without stopping the whole mixing work, and the cost is reduced.

The invention discloses a millimeter wave high-gain planar super-structure grating antenna, which structurally comprises an excitation waveguide with an electromagnetic wave incident port, a quasi-periodically arranged metal grating structure and a two-dimensional dielectric waveguide with a single-sided conductive layer at the bottom. The antenna adopts a quadruple rotational symmetry structure design, and ensures that radiation modes excited by four ports have consistency. The large-aperture antenna is excited based on a traveling wave mode, periodic modulation of a dielectric waveguide propagation mode is realized through grating loading, and energy is prompted to be radiated in a fast wave form; and meanwhile, a small number of grating units are non-uniformly arranged, so that the grating lobe effect of the antenna array is effectively reduced. Electrically large-size aperture excitation is realized through a low-complexity planar structure, and the antenna has the characteristics of high efficiency and high gain, and can be applied to a millimeter wave communication system.

The application discloses a speech transcription method, a speech transcription device and an electronic device, and belongs to the technical field of communication. The speech transcription method comprises the following steps: based on a first speech, displaying a waveform graph corresponding to the first speech in a first area of a display screen, and displaying text information obtained by transcribing the first speech in a second area of the display screen; receiving a first input of a user; in response to the first input, determining a decibel range; filtering the first speech according to the decibel range, and updating the display of the waveform graph and the text information.

This invention provides a steel wire cord with a structure of nx1, where n is the number of steel monofilaments in the steel wire cord. The elongation of the steel wire cord at 2.5N to 50N is less than 1.2%, and the lay length is greater than 16mm. When unwound from the steel wire cord, each steel monofilament has a helical wave form, with a wavelength L in mm and a wave height H in mm, where L is greater than 16mm. The spatial volume Vs of each steel monofilament satisfies Vs = L x H. 2 xπ / 4, and Vs>20mm 3 The steel wire cord of this invention is beneficial for stress distribution.

This invention belongs to the technical field of low-frequency calibration methods for non-free-field hydrophones, and particularly relates to a low-frequency calibration method for non-free-field hydrophones based on multi-frequency measurement and deep learning. The method involves determining the test frequency points for hydrophone calibration, selecting several frequency points within the nearest frequency band of each test frequency point, emitting sinusoidal pulse signals through an underwater acoustic transducer, and receiving the acoustic signal waveforms corresponding to each frequency point at the sound pressure measurement point. The received waveforms at each frequency point are then time-domain aligned and resampled to construct a two-dimensional waveform diagram with time as the horizontal axis and frequency as the vertical axis. In this two-dimensional waveform diagram, the direct sound components are vertically distributed, while the reflected sound components are slopingly distributed with different slopes. A deep learning module based on a U-shaped encoder-decoder network structure is constructed, and this deep learning module is trained and its parameters optimized using a pre-generated two-dimensional waveform dataset.

The invention discloses a local synchronous observation device for a wave-induced sound process and belongs to the technical field of ocean observation. Through an integrated design, local synchronous observation of multiple key elements such as a wave form, underwater bubbles and acoustic response is realized; meanwhile, through the bionic noise reduction design of the buoy body, the multi-stage vibration reduction and noise isolation measures of the hydrophone and elimination of surrounding ship navigation noise interference, the observation signal-to-noise ratio is remarkably improved. The device disclosed by the invention can provide unprecedented technical support for revealing a wave-induced sound mechanism, improving the precision of a marine environment noise forecasting model and carrying out multidisciplinary cross research.

The invention relates to the field of sound-driven mobile robots, in particular to a sound-driven method for all-region obstacle crossing rolling wheels. The invention discloses an all-region obstacle crossing rolling wheel sound driving method. The method comprises the following steps that 1, the mechanical resonant frequency of a rolling wheel device working in a required radial vibration mode is determined; 2, a rolling wheel device is built, and excitation signals are applied to the piezoelectric plate 1 # and the piezoelectric plate 2 # at the same time; 3, analyzing the vibration displacement of the rolling wheel and converting the vibration displacement into a traveling wave form; 4, determining an optimal phase difference; and 5, driving the rolling wheel to move. The problems that a sound-driven mobile robot is insufficient in obstacle crossing ability, low in driving efficiency and complex in structure and control can be solved.

To develop a novel method for imparting a wave shape to a noodle string group cut from a noodle cutting machine.SOLUTION: A noodle string group automatic wave shape forming device comprises a noodle cutting device 2 that includes a pair of cutting rolls, a conduit 3 through which a noodle string group MS after being cut discharged from the noodle cutting device 2 passes, a blocking plate 5 capable of blocking the discharge of the noodle string group at an outlet part of the conduit 3, and an opening and closing mechanism for the blocking plate.SELECTED DRAWING: Figure 1

Methods providing biofeedback generally comprising: correlating an emotional state with an emotional resonance signal of a person; determining a bio-resonant frequency and wave form from a segment of the emotional resonance signal; and producing a feedback signal that is a higher harmonic of the emotional resonance signal. Said feedback signal can help adjust emotional states, balance brainwave activity, forge new neuro-circuits, increase interhemispheric communication, creativity and brain-efficiency thereby improving a full spectrum of nervous system activity from hyperarousal to deep sleep.

The utility model discloses an automobile test field oscillation road which comprises a base layer and a surface layer, the top of the base layer is covered with the surface layer, and the top of the surface layer is further provided with a left lane and a right lane. The base layer comprises a granular material base layer and a semi-rigid base layer which are arranged from bottom to top; the right lane is internally provided with a same-direction washboard road and a reverse-direction washboard road, the same-direction washboard road and the reverse-direction washboard road are each provided with a plurality of wave forms which are evenly spaced, and the wave forms on the two roads are arranged in a peak staggering mode; according to the utility model, through unique equidirectional and reverse washboard road waveform peak staggering arrangement, complex vibration working conditions can be simulated; the right lane is provided with a two-percent left-high right-low cross slope, which is beneficial to drainage and prevents accumulated water from influencing the test and damaging the road; the device is simple in structure, small in waveform indirect direction and high in frequency, synchronous construction of the two sides of the washboard road surface can be guaranteed during construction, coordinates and elevation errors of wave crest and wave trough positions of the road surface are effectively reduced, and flatness quality deviation caused by manual control is avoided.