331 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 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

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.

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.

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.

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.

This application provides a display device and its audio output method. The display device includes a display screen, a first speaker, and a second speaker. The first speaker is located behind the display screen, and its sound emission direction is towards the upper rear of the display device. The second speaker's sound emission direction is towards the front of the display device or towards the lower part of the display device. The first speaker and the second speaker emit sound asynchronously. The display device of this application has good stereo sound effects.

To propose a more appropriate microphone arrangement state by assuming a case of using a plurality of microphones.SOLUTION: An acoustic reproduction device includes: a first microphone to be used for noise cancellation processing; a second microphone to be used for the noise cancellation processing; a third microphone to be used for the noise cancellation processing; and a driver unit that performs acoustic output based on a noise cancelling signal generated using a first sound collection signal collected by the first microphone, a second sound collection signal collected by the second microphone, and a third sound collection signal collected by the third microphone. A first sound collection surface which is a sound collection surface of the first microphone is a surface directed to a direction different from a sound emission direction of the driver unit. A second sound collection surface which is a sound collection surface of the second microphone is a surface directed to the same direction as the sound emission direction of the driver unit. A third sound collection surface which is a sound collection surface of the third microphone is a surface directed to a direction different from each of the first sound collection surface and the second sound collection surface.SELECTED DRAWING: Figure 11

This application relates to a method, vehicle, device, and medium for sharing external speakers across vehicle domains. The method includes: acquiring the actual vehicle speed and status information to generate a chassis domain horn sound source signal and / or at least one cabin domain interactive sound source signal, wherein the at least one cabin domain interactive sound source signal includes at least one of a low-speed pedestrian warning system sound source signal, an external media interactive sound source signal, and an in-vehicle sound source signal; based on the chassis domain horn sound source signal and / or at least one cabin domain interactive sound source signal, and in conjunction with a preset sound source management strategy, enabling a target external speaker to replace the external snail horn in performing corresponding sound source playback operations in the chassis domain and / or cabin domain. This application effectively reduces redundant vehicle parts, lowers overall vehicle costs, and improves the user experience by integrating low-speed pedestrian warning functions, interactive functions, and external speaker functions to share external speakers for sound emission.

The utility model discloses a rotating shaft structure capable of sounding prompt, which comprises an outer ring and an inner ring which can rotate relatively, a central hole is arranged in the inner ring, a rotary sounding clamping plate and an elastic element are arranged between the outer ring and the inner ring, a cavity for accommodating the rotary sounding clamping plate and the elastic element is arranged in the outer ring, and a circle of uniformly arranged tooth grooves are arranged on the inner wall of the outer ring. The inner ring is provided with a limiting clamping table sleeved with the rotary sound production clamping plate, the rotary sound production clamping plate is provided with meshing teeth, and when the outer ring and the inner ring rotate relatively, the meshing teeth are continuously and movably meshed with the tooth grooves to make a sound. According to the utility model, when the outer ring and the inner ring rotate relatively, a clear click sound can be made, a good rotation operation hand feeling can be maintained, and after rotation, a relative rotation angle can be maintained and shaking is not easy to occur; the rotary sounding clamping plate and the elastic element are simple in structure, high in part structural strength and convenient to process and assemble; after assembly, the meshing teeth are in movable contact with the tooth grooves in the circumferential direction during rotary adjustment, fatigue abrasion is not prone to occurring in the use process, and long-term use is facilitated.

The application discloses a sound box of a rotating shaft rotating type adjustable medium-high sound unit, and relates to the technical field of sound boxes.The sound box comprises a sound box body, strip-shaped sound boxes are installed on the two sides of the sound box body, a rotating shaft structure is connected to one end of the strip-shaped sound boxes, and the rotating shaft structure is connected with the upper end side wall of the sound box body.The rotating shaft structure can drive the strip-shaped sound boxes to flexibly adjust the sound emission position on the two sides of the sound box body, and a pull rod is inserted into the sound box body.The sound box is adjusted by the cooperation of the sound box body, the strip-shaped sound boxes and the rotating shaft structure, the medium-high sound emission direction is adjusted by using the physical structure, the point source sound emission is changed into bilateral distributed sound emission, the horizontal sound field coverage is greatly widened, the sound emission angle can be flexibly adjusted according to the position of the audience and the size of the scene, the clear sound quality and the stable sound field positioning can be kept in the whole area.

Described embodiments include an audio speaker configured to emit sound in a main sound emission direction. The audio speaker comprises a voice coil, a movable diaphragm connected to the voice coil and configured to move together with the voice coil, the movable diaphragm comprising, in a direction opposite the main sound emission direction, a front surface and a rear surface opposite the front surface. The audio speaker further comprises a light source configured to emit light which is located, in a direction of the main sound emission direction, below the voice coil, and a light guide configured to guide the light emitted from the light source to the front surface of the movable diaphragm.

The utility model discloses a wireless stethoscope which comprises a stethoscope shell and a handheld shell, one end of the handheld shell is fixedly connected with a connecting block, the other end of the connecting block is fixedly connected with the outer wall of the stethoscope shell, and the stethoscope shell is fixedly installed at the end of the handheld shell through the connecting block. A trumpet-shaped opening is formed in one side of the auscultation shell, a mounting ring is fixedly arranged at the position, located on the inner wall of the trumpet-shaped opening, of the auscultation shell, and a sound filtering diaphragm is arranged in the middle of the interior of the mounting ring. According to the utility model, the plurality of microphones are uniformly arranged on the mounting ring in a surrounding manner, so that a microphone matrix is formed on the mounting ring, the sound direction detection sensor on the PLC judges the sound emitting direction according to the sound receiving sequence of the different microphones, and the sound direction is displayed on the display; therefore, a doctor can accurately find the sounding position according to the direction displayed on the display, and the doctor can judge the illness state of a patient.

The present invention provides a method and device for reducing the power consumption of a speaker module. The method comprises: receiving sound characterization parameters of the speaker module; determining the initial output voltage of the speaker module based on the sound characterization parameters and a mapping relationship library; and reducing the power consumption of the speaker module based on the initial output voltage. To address the problems of the prior art, the method and device for reducing the power consumption of a speaker module provided by the present invention automatically adjust the output voltage of the speaker module according to different sound emission scenarios, thereby reducing the required voltage while maintaining the original low-frequency performance of the overall system, thereby reducing power consumption.

This invention discloses a multi-axis linkage precision drilling control system and method for CNC six-sided drilling, belonging to the field of CNC six-sided drilling control technology, including the following steps: S1: self-calibration before machining; S2: adaptive control during machining, integrating multi-source sensor data to perform plate deformation compensation, multi-axis dynamic feedforward and cross-coupling control, drill bit runout suppression, and thermal error correction; S3: verification and self-learning after machining, detecting characteristic hole position deviations; This invention integrates multi-source sensor real-time perception, model prediction and cross-coupling multi-axis linkage control, biomimetic flexible clamping dynamic adjustment, active suppression of drill bit runout and self-repair of chipping sound emission, real-time identification and strategy avoidance of internal defects through deep learning of machining acoustic patterns, and online updating of thermal errors and self-learning of process parameters based on recursive least squares and Bayesian optimization, forming a complete closed-loop system of pre-machining self-calibration, in-machining adaptive compensation, and post-machining self-learning.

(Main claim): Electronic bicycle bell for arrangement inside a bicycle handlebar (1) with an electronic assembly (4) with control unit (5) and power supply (6), an actuator / sensor (8) that can be operated laterally on the handlebar, and at least one sound outlet (9) in the area of ​​a handlebar end plug (10), wherein an acoustic signal can be generated by actuating the actuator / sensor (8), which is emitted via the handlebar end area.