407 results about "Sound emission" patented technology

The invention relates to the technical field of elevator equipment state monitoring and fault diagnosis, and discloses an elevator traction machine running state real-time diagnosis method and system based on high-frequency sampling. According to the method, vibration (larger than or equal to 20 kHz), current (larger than or equal to 10 kHz), sound / sound emission, temperature and rotating speed signals of a traction machine are synchronously collected through a high-frequency multi-mode sensor array; capturing early weak fault transient characteristics; the edge computing unit completes data preprocessing, time synchronization, feature extraction and anomaly detection, and uploads key data to a cloud end through cloud-edge collaboration; the cloud end adopts a working condition self-adaptive strategy and a multi-modal fusion model to carry out deep diagnosis, and outputs fault types, positions and grades; and combining incremental learning and a degradation model to realize health quantification and residual life prediction. Through fusion of high-frequency data capture and an intelligent algorithm, the early fault detection capability, variable working condition adaptability and diagnosis real-time performance of the traction machine are improved, and a solution is provided for predictive maintenance of an elevator.

To provide a game machine capable of attaining improvement in operability of operation means.SOLUTION: A game machine comprises: first operation means; second operation means disposed at a position separated from the first operation means; operation detection means capable of detecting an operation; a speaker; a speaker cover which has a plurality of sound releasing holes that face the speaker; and a light emitting member arranged on the back side of the speaker cover. Either when the first operation means is operated or when the second operation means is operated, the operation detection means is able to detect the operation. At least one of the first operation means and the second operation means is formed in a flat shape. A light emitting performance in which the light emitting member is caused to emit light so that a sound release region in the speaker cover that faces the speaker appears to be luminous is executed.SELECTED DRAWING: Figure 334

To provide a game machine capable of attaining improvement in operability of operation means.SOLUTION: A game machine comprises: first operation means; second operation means disposed at a position separated from the first operation means; operation detection means capable of detecting an operation; a speaker; a speaker cover which has a plurality of sound releasing holes that face the speaker; a light emitting member arranged on the back side of the speaker cover; and a light guide member having a light incident part where the light emitted by the light emitting member is incident. Either when the first operation means is operated or when the second operation means is operated, the operation detection means is able to detect the operation. A light emitting performance in which the light emitting member is caused to emit light so that a sound release region in the speaker cover that faces the speaker appears to be luminous is executed.SELECTED DRAWING: Figure 334

To provide a game machine capable of attaining improvement in operability of operation means.SOLUTION: A game machine comprises: first operation means; second operation means disposed at a position separated from the first operation means; operation detection means capable of detecting an operation; a connection that connects the first operation means and the second operation means; a speaker; a speaker cover which has a plurality of sound releasing holes that face the speaker; and a light emitting member arranged on the back side of the speaker cover. Either when the first operation means is operated or when the second operation means is operated, the operation detection means is able to detect the operation. The connection has a portion to be detected, and the operation detection means is able to detect that an operation is performed when the position of the portion to be detected is changed. At least one of the first operation means and the second operation means is formed in a flat shape.SELECTED DRAWING: Figure 334

To provide a game machine capable of attaining improvement in operability of operation means.SOLUTION: A game machine comprises: first operation means; second operation means disposed at a position separated from the first operation means; operation detection means capable of detecting an operation; a connection that connects the first operation means and the second operation means; a speaker; a speaker cover which has a plurality of sound releasing holes that face the speaker; a light emitting member arranged on the back side of the speaker cover; and a light guide member having a light incident part where the light emitted by the light emitting member is incident. Either when the first operation means is operated or when the second operation means is operated, the operation detection means is able to detect the operation. The connection has a portion to be detected, and the operation detection means is able to detect that an operation is performed when the position of the portion to be detected is changed.SELECTED DRAWING: Figure 334

The present disclosure relates an acoustic signal output equipment, and in particular to an audio equipment. The audio equipment comprises a sound emit device, the sound emit device is used to emit sound signals, the audio equipment also comprises a sound signals amplification structure and a connection structure. The sound signals amplification structure has an axis and a sound signals amplification surface, the sound signals amplification surface is formed by rotating the axis, the sound signals amplification surface faces the sound emit device directly, with a distance between the sound signals amplification surface and the sound emit device, in a direction of away from the sound emit device, a cross sectional area of the sound signals amplification surface is increased gradually.

The invention relates to the technical field of rock mass earthquake dynamic response, and discloses a layered rock mass earthquake dynamic response multi-scale monitoring system and method, and the system comprises a rock mass three-dimensional geological module, a simulation setting module and an earthquake simulation module. The method comprises the following steps: establishing a layered rock mass three-dimensional geologic model; the method comprises the following steps: identifying a dangerous rock mass structural surface, monitoring slope displacement, and installing sound emission monitoring equipment at a key position to form a three-dimensional monitoring network; a layered rock mass and a broken area in the layered rock mass three-dimensional geological model are divided into discrete element areas, and a continuous medium area is divided into finite difference areas; coupling the discrete element region and the finite difference region; inputting the seismic wave as a dynamic boundary condition into the finite difference region, transmitting a response to the discrete element region through a coupling interface, and simulating a rock stratum and rock mass dynamic fracture process; and the crack propagation particle size and the original stress propagation are transmitted to the cloud platform. The geometric morphology and the internal structure of the rock mass can be accurately reflected.

To provide a game machine capable of attaining improvement in operability of operation means.SOLUTION: A game machine comprises: first operation means; second operation means disposed at a position separated from the first operation means; operation detection means capable of detecting an operation; a speaker; a speaker cover which has a plurality of sound releasing holes that face the speaker; a light emitting member arranged on the back side of the speaker cover; and a light guide member having a light incident part where the light emitted by the light emitting member is incident. Either when the first operation means is operated or when the second operation means is operated, the operation detection means is able to detect the operation. At least one of the first operation means and the second operation means is formed in a flat shape. A light emitting performance in which the light emitting member is caused to emit light so that a sound release region in the speaker cover that faces the speaker appears to be luminous is executed.SELECTED DRAWING: Figure 334

The invention discloses an underwater focusing intense sound system and method based on phase control, and relates to the technical field of focusing intense sound, and the technical scheme is characterized in that a measurement and control upper computer is used for controlling the emission and detection of a trigger signal; the phase control signal generator is used for controlling a phase control signal of sound wave emission; the multi-channel power amplifier is used for driving the acoustic emission phased area array, and the acoustic emission phased area array is used for emitting acoustic waves; the area array calibration hydrophone is used for receiving signals of reflected sound waves; the target calibration sound source is used for transmitting a signal pulse width, the target sound field measurement hydrophone is used for receiving the signal pulse width transmitted by the target calibration sound source and forwarding the signal pulse width to the measurement and control upper computer, and the measurement and control upper computer receives the forwarded signal pulse width for system evaluation and correction. By generating the high-energy strong-focusing sound field and combining the actual underwater signal propagation process, accurate positioning and control of the underwater strong sound field can be completed, so that accurate focusing irradiation and high-resolution imaging of a long-distance small target are realized.

A vehicle approach notification device to be applied to a vehicle includes a determination processor, a selection processor, and a sound emission controller. The determination processor is configured to perform a determination as to whether to change a currently set notification sound when it is determined that a surrounding vehicle is detected. The selection processor is configured to select a notification sound in place of the currently set notification sound from multiple notification sounds when the determination processor determines to change the currently set notification sound in the determination. The sound emission controller is configured to perform sound emission control of the notification sound selected by the selection processor.

The invention discloses a driving working face abnormal information detection system and method based on sound wave inversion, and relates to the technical field of coal and gas outburst early warning monitoring, and the method comprises the steps: obtaining an impact sound emission signal of a drill bit of a heading machine and a target coal mine driving working face when the heading machine carries out the driving work on the target coal mine driving working face, acquiring a coal and rock mass fracture acoustic emission signal of the target coal mine driving working face; analyzing the dissimilatory characteristics of acoustic emission waveforms of the impact acoustic emission signal and the coal and rock mass fracture acoustic emission signal; and inputting the dissimilatory characteristics of the acoustic emission waveforms into the trained classification model for inversion identification to obtain head-on geological information of the target coal mine driving working face. According to the method, the gas outburst condition in the coal seam tunneling process can be early warned in time, and the technical problems that in the prior art, in the tunneling working face abnormal information detection process, the operation difficulty is large, the real-time performance is poor, and the application range is narrow are solved.

According to the ring main unit with the intelligent online partial discharge detection system provided by the invention, the problem of multisource data asynchronization is solved through a four-dimensional space-time synchronous acquisition mechanism, so that the time alignment error of ultrahigh frequency and ultrasonic signals is lower, and the positioning precision is higher; the edge computing unit is used for executing adaptive filtering and pulse extraction, so that the effective data compression rate is greatly increased, the bandwidth requirement is reduced, and quick response within 3 seconds is realized; cross-modal coupling factor quantification electromagnetic-acoustic emission correlation characteristics are innovatively proposed, the contribution degree of a sensor is adaptively adjusted in combination with a dynamic weight distribution strategy, and high discharge type recognition accuracy is still kept in a strong electromagnetic interference environment; the space-time heterogeneous data is cooperatively processed through the two-channel deep learning model, the composite discharge mode is effectively identified, and the false alarm rate is lower compared with a traditional method; in addition, the system automatically and incrementally trains the model per week, continuously adapts to signal attenuation caused by equipment aging, and prolongs the effective monitoring life by more than three times.

The invention discloses a silo internal state monitoring method and an adjustable experiment device, and relates to the technical field of vertical silos, the silo internal state monitoring device comprises a silo body and a silo bottom, the silo body and the silo bottom are connected through a flange plate, a tray is arranged in the silo body, a weight is arranged above the tray, and the lower portion of the tray is in contact with bulk materials placed in the silo body. And circular grooves are formed in the wall surfaces of the bin body and the bin bottom. The detection method comprises the steps that S1, the bottom opening of the conical bin bottom is closed, materials enter the bin body through the upper opening of the bin body to be stacked, and the tray is placed on the top faces of the materials; s2, after the materials are stacked, an acoustic emission acquisition device and a pressure acquisition device are turned on to prepare to start to acquire signals; s3, a bottom opening of the conical bin bottom is opened, and sound signals and pressure signals are collected till discharging is completed; and S4, after discharging is completed, collection of the sound signals and the pressure signals is stopped. According to the invention, the fluctuation difference between the sound signal and the pressure signal is collected, and the signal characteristics are analyzed to characterize the material flow state in the adjustable silo.

To provide a device that has a simple and lightweight structure and allows a user to hear sound emitted from a device without blocking the user's ears.SOLUTION: A sound output device 100 includes a case 1 (a first case 11 and a second case 12) and a diaphragm 3 arranged within the case 1 and generating a surface wave from a curved vibration surface (the surface of a main body portion 31 of the diaphragm 3), and the case 1 is provided with sound emission holes 7 (a first sound hole 71 and a second sound hole 72) that send out a surface wave in a direction different from the normal direction D of the vibration surface (the surface of the main body part 31 of the diaphragm 3).SELECTED DRAWING: Figure 2

The invention belongs to the technical field of aviation strength tests, and particularly relates to a high-noise environment complex structure acoustic emission source accurate positioning method. The method comprises the following steps: step 1, constructing a time difference mapping library for positioning; 2, collecting an acoustic emission signal, and carrying out composite noise reduction on the acoustic emission signal; 3, processing the acoustic emission signals through a time window energy ratio method and an AIC method to obtain the arrival time of each acoustic emission signal; step 4, performing signal matching according to the similarity of the arrival time of each acoustic emission signal to obtain an event group for positioning; and 5, carrying out positioning calculation according to the time difference mapping library and the event group to obtain a damage signal source positioning coordinate. According to the invention, the interference of noise is effectively reduced, the detection precision of the sound wave arrival time is greatly improved, and the structure damage source can be positioned in a high-noise complex structure fatigue test.

The invention relates to the technical field of oil-gas field oil well fault diagnosis, in particular to an oil-gas field oil well intelligent fault diagnosis method and device based on a swan-gap system. According to the method, the multi-mode equipment is connected through the swan-Mongolia distributed soft bus to collect data, and the edge computing nodes are deployed to perform local diagnosis, so that the dependence on the network is reduced, and the real-time performance of fault diagnosis is improved; a generalized Choquet integral synthesis model is used for fusing load displacement, acoustic emission and motor electrical parameter sub-risk values, the fault risk is comprehensively evaluated, the diagnosis accuracy is improved, and the missed diagnosis and misdiagnosis probability is reduced; self-inspection data such as hardware state and signal quality are collected through the sensor self-inspection layer, a fusion instruction is generated through the data credibility analysis layer to adjust data weight, a fault sensor is isolated, and data reliability is guaranteed; based on hardware and communication parameter analysis of network transmission data, a network adaptation execution instruction is dynamically generated, stable data transmission is ensured, and the anti-interference capability of the system is improved.

The frequencies of carrier waves respectively emitted from a first parametric speaker (300A) and a second parametric speaker (300B) are 100 kHz or greater and are the same as each other. Audible sound reproduced by the first parametric speaker (300A) and audible sound reproduced by the second parametric speaker (300B) have opposite phases from each other. The first parametric speaker (300A) and the second parametric speaker (300B) are arranged at a pitch interval (P) of 10-20 cm in a horizontal direction. The first parametric speaker (300A) and the second parametric speaker (300B) each have a directional property in which there is an angular range of 35° to 60°C in the horizontal direction, centered around the center 0° of the audible sound emission direction, in which the acoustic pressure that decreases from the peak acoustic pressure at the center 0° is 6 db or less.

Display device. A display device is disclosed, including a display panel configured to display an image by emitting light; a rear surface structure configured to surround a side surface and a rear surface of the display panel; a vibration generation device connected with the rear surface structure and configured to vibrate the display panel; a rear sound emission portion located between the display panel and the rear surface structure; and a rear sound guide member located between the display panel and the rear surface structure to surround the vibration generation device in a spiral shape and configured to be connected with the rear sound emission portion.

The invention provides a harmonic reducer performance degradation evaluation method for an industrial robot, and the method comprises the steps: setting an experiment operation condition and a data collection strategy, and obtaining a whole-life-cycle sound emission and micro-vibration synchronous data set; extracting characteristics of the acoustic emission signal and the vibration signal by using the strong sensitivity of the acoustic emission signal to the early damage of the harmonic reducer and the accurate capturing capability of the micro-vibration signal to the middle and later damage; according to monotonicity, correlation, predictability and robustness indexes of the features, performing linear weighting on each index through an entropy weight method to construct a comprehensive evaluation index, and screening an optimal feature according to a highest score; a differential evolution (DE) method is adopted to fuse the optimal acoustic emission and micro-vibration characteristics, and a multi-stage health index (HI) capable of effectively representing the health state of the harmonic reducer is constructed.

The invention discloses a goaf remaining coal pillar stability comprehensive evaluation method based on InSAR and acoustics fusion, and belongs to the field of mine safety evaluation.The goaf remaining coal pillar stability comprehensive evaluation method comprises the steps that an SAR satellite suitable for a mining area is selected, SAR satellite image data of the mining area is obtained, sequential deformation analysis is conducted, the deformation rate and an accumulated deformation graph of the mining area are obtained, and a settlement abnormal area of the mining area is recognized; a coal pillar area of a mining area is drilled, and an ultrasonic logging device, an inter-well sound wave chromatography system and a sound emission monitor are arranged; performing comprehensive analysis on all the obtained data, and constructing a coal pillar stability evaluation model; and through the coal pillar stability evaluation model, grading the coal pillar stability, and predicting a coal pillar instability risk. According to the InSAR and acoustics fused goaf remaining coal pillar stability comprehensive evaluation method provided by the invention, high-precision evaluation of the coal pillar stability is realized through combination of earth surface deformation monitoring and deep coal pillar structure detection.

The present disclosure provides a hearing aid system. The hearing aid system comprises a hearing aid main body and an earplug piece, the hearing aid main body is provided with a first playback channel, and the hearing aid main body is used for extending into an ear canal; the earplug piece comprises a supporting connecting layer, a temperature-sensitive deformation layer and an extension heat conduction coating layer, the supporting connecting layer is connected with the temperature-sensitive deformation layer, the extension heat conduction coating layer is connected to the peripheral wall of the side, away from the supporting connecting layer, of the temperature-sensitive deformation layer in a coating mode, and the supporting connecting layer is connected with the hearing aid body; a first playback via hole is formed in the supporting connecting layer, a second playback via hole is formed in the temperature-sensitive deformation layer, and the second playback via hole is used for being communicated with an ear canal; the temperature-sensitive deformation layer is used for being heated to deform and expand in the ear canal, and the extension heat-conducting coating layer is used for extending to deform to fit the ear canal when the temperature-sensitive deformation layer is heated to deform and expand, so that the extension heat-conducting coating layer is clamped and propped against the inner wall of the ear canal. The hearing aid system is good in use comfort in the long-term wearing and using process.

A musical booster seat device for supporting and entertaining a child includes a housing having a top wall, a bottom wall, and a peripheral wall extending between the top wall and the bottom wall to define an interior space. A window is positioned in the peripheral wall. The peripheral wall has a vent extending therethrough, with a mesh grill covering the vent. A plurality of instruments is positioned within the interior space. The plurality of instruments is visible through the window and is audible through the vent. Alternative embodiments may include a speaker and an electronic sound emitter that function together with the plurality of instruments. The electronic sound emitter may include a transceiver, a memory unit, and a central processing unit so that pre-recorded sounds or songs can be played audibly with the speaker. Some embodiments include lights that are controlled by the central processing unit.

The invention discloses a children autism risk assessment method and system based on multi-modal collaborative reasoning and a vertical domain large model, and the method comprises the steps: collecting the audio data of a to-be-assessed child and a parent in a parent-child interaction link, and collecting the video data through collection equipment; analyzing and marking the collected audio data, and generating a sounding record and a transcription text with a timestamp; performing real-time analysis and labeling on the collected video data, and generating sight line, expression and action recognition records with timestamps; performing independent analysis on the preprocessed multi-modal data, performing feature fusion and collaborative analysis on the multi-modal data such as audio, text and video by using a multi-modal collaborative reasoning method, and generating a scientific data index for autism risk assessment; training a vertical domain large model special for autism risk assessment; and inputting the generated data indexes into a vertical domain large model, and outputting targeted assessment suggestions by the large model in combination with daily information of the children to be assessed obtained by interviews and conversations with parents.

Method for diagnosing damage to a vehicle component that generates airborne and / or structure-borne noise emissions, wherein data about these emissions are used for diagnosis, in which in a first method step (M1) - the measured airborne and / or structure-borne sound emissions are converted into airborne and / or structure-borne sound data, - simultaneously, the current operating situation of the vehicle is determined by recording operating situation data, - and the data obtained are stored in a computer, in which a second procedural step (M2) - the airborne and / or structure-borne sound data are transformed using mathematical methods in such a way that the first transformed airborne and / or structure-borne sound data generated in this way can be analyzed and evaluated, and in which a standardization process is carried out in a third procedural step (M3), - in which a reference data set is determined that is assigned to the current operating situation data and contains such transformed reference airborne and / or structure-borne sound data that would be generated in this operating situation in a vehicle without damage, - in which, for the purpose of generating normalized transformed airborne and / or structure-borne sound data, this reference data set is compared with the first transformed airborne and / or structure-borne sound data, and - where a detected difference provides an indication of airborne and / or structure-borne noise emitted by a defective vehicle component. Furthermore, the invention relates to a diagnostic system with which the method can be operated.

In general, in one aspect, embodiments relate to a method, that includes lowering a tool string down into a wellbore extending into a subterranean formation, where the tool string includes perforating charges, and one or more acoustic emitters, energizing the one or more acoustic emitters to form at least an acoustic signal while the tool string is being drawn up-hole, detecting the acoustic signal with a sensing cable disposed within the wellbore, determining an angular orientation of the tool string relative to the sensing cable based at least in part on the acoustic signal, and detonating at least one of the perforating charges when its firing direction is not directed at the one or more sensing cables.

To provide a game machine capable of attaining improvement in operability of operation means.SOLUTION: A game machine comprises: first operation means; second operation means disposed at a position separated from the first operation means; operation detection means capable of detecting an operation; a speaker; a speaker cover which has a plurality of sound releasing holes that face the speaker; and a light emitting member arranged on the back side of the speaker cover. Either when the first operation means is operated or when the second operation means is operated, the operation detection means is able to detect the operation. A light emitting performance in which the light emitting member is caused to emit light so that a sound release region in the speaker cover that faces the speaker appears to be luminous is executed.SELECTED DRAWING: Figure 334

Methods and apparatus for lowering an actual and perceived-sound level produced by sports equipment are described. In some examples, methods and apparatus to lower sound levels produced by pickleball balls are described. In some examples, internal surface features such as ribs, peaks, tabs, channels, divots, and damping layers may be applied. In some examples, composite layered designs may result in lowered amplitude and / or in shifted resonant frequencies. In some examples, heat or light sources may be used to alter the internal surfaces of ball constructs. In some examples the composite layered design may include isolated surface plates. In some examples, electroactive components may reduce sound emission. Methods of measuring a sound level at frequencies and using the measurement results to iteratively design ball designs are described.

A cancellation device according to one aspect of the invention is a cancellation device that cancels noise coming to a region in a vicinity of a loudspeaker, the cancellation device including at least two loudspeakers 1 and one reference microphone 3, in which the cancellation device is configured such that an acoustic signal emitted in a sound emission direction of a same loudspeaker and an acoustic signal emitted in an opposite direction collide with each other, the at least two loudspeakers 1 and the reference microphone 3 are arranged on a same plane, the at least two loudspeakers 1 emit cancellation sound that cancels the noise in synchrony, and the plane is a plane including a boundary between a sound emission direction of the two loudspeakers 1 and a direction opposite to a sound emission direction.

A vehicle approach notification device includes a sound emitter configured to output a notification sound. The sound emitter includes a vibration plate that generates sound, and sound guide tubes that outputs the notification sound toward an outside of the vehicle. The sound guide tubes include a first sound guide tube directed to a front area in front of the vehicle, and a second sound guide tube directed in a direction different from a direction in which the first sound guide tube is directed. Each of the sound guide tubes is configured to amplify a sound having a frequency corresponding to a tube path length of the sound guide tube by causing the sound generated by the vibration plate to resonate. The tube path length of the first sound guide tube and the tube path length of the second sound guide tube are different from each other.

A damping member (100) for a pneumatic valve (205) of a pneumatic system (201) of a vehicle (200a), in particular a utility vehicle (200b), is adapted to be mounted to an air outlet section (210) of the valve (205) which is used for exhausting pressurized air (220). The damping member (100) is adapted for damping sound emission of the pressurized air (220) and includes a scaffold structure (105). The scaffold structure (105) is adapted to damp the sound emission of the pressurized air (220) by conducting the air (220) through the scaffold structure (105).