230 results about "Sound image" patented technology

The invention discloses a power transmission line connection fitting fault detection method based on acoustics and electromagnetic induction, and belongs to the technical field of intelligent inspection and nondestructive detection of power transmission lines. A multi-mode sensor is carried by an unmanned aerial vehicle, ultrasonic wave, vibration, images and power frequency electromagnetic field data are synchronously collected, and a multi-dimensional original data set is constructed. Signal quality is improved by adopting wavelet noise reduction, beam forming and sound image fusion technologies, and flight vibration and electromagnetic interference are effectively suppressed by combining an adaptive filtering algorithm and a physical shielding structure. And acoustic, image and electromagnetic characteristics are extracted and normalized and fused, a dynamic threshold reference library is established, and intelligent grading discrimination of abnormity, defects and faults is realized through multi-stage early warning logic. A detection result automatically generates a report and is mapped to a three-dimensional line model, and operation and maintenance system linkage is supported. According to the method, synchronous identification of surface and internal defects is realized, the anti-interference capability is high, the detection accuracy is high, the inspection efficiency and safety are remarkably improved, and the method is suitable for intelligent operation and maintenance of the high-voltage transmission line.

The invention relates to a simulation digital human real-time intelligent voice interaction system and a simulation digital human real-time intelligent voice interaction method based on vision and a large model, and aims to solve the problems of inaccurate target speaker recognition, high response delay and the like in digital human voice interaction in a complex scene. The system circles an effective recognition range through a camera, triggers audio collection in combination with face detection, locks a target speaker and reduces noise by using lip movement recognition and sound image fusion technologies, converts the target speaker into a text through voice wake-up, generates an answer by means of a large language model (LLM) and knowledge retrieval enhancement (RAG) technologies, generates low-delay voice through a voice synthesis technology accelerated by the vLLM, and performs voice recognition on the target speaker. And driving the preloaded digital human image to synthesize a video stream and pushing the video stream to a front end for rendering in real time. Accurate pickup, low-delay interaction and rapid digital human image switching in a complex environment are realized, the accuracy and real-time performance of intelligent voice question answering are improved, and the method is suitable for government affair halls, exhibition halls and other scenes.

The invention discloses a spatial sound effect test method and system for a sound system. The method comprises the following steps: S1, synchronously acquiring multi-modal sensing data of a test environment in a preset stage; s2, generating a three-dimensional sound pressure distribution thermodynamic diagram, and constructing an initial sound field model based on the three-dimensional sound pressure distribution thermodynamic diagram; s3, generating a corrected sound field model, and synchronously recording vibration data acquired by the triaxial accelerometer; s4, generating a sound image positioning trajectory diagram, and calculating a deviation angle between an actual sound image position and a theoretical position; and S5, determining the sound effect quality score of each test stage. According to the method, a closed-loop test framework of physical environment perception, sound field real-time modeling, man-machine interaction analysis and fault linkage traceability is constructed, a full-process test solution covering a hardware state, acoustic characteristics and human factor perception is provided for an immersive audio system, and the spatial sound effect reliability of digital playing equipment is remarkably improved.

Disclosed is an audio codec that represents an immersive signal by a two-channel stereo signal that is a stereo rendering of the immersive signal and directional parameters. The directional parameters may be based on a perceptual model describing the direction of virtual speaker pairs to recreate the perceived location of dominant sounds. Audio processing at the decoder may be performed on the stereo signal in the frequency domain for multiple channel pairs using time-frequency tiles. Spatial localization of the audio signals may use a panning approach by applying weightings to the time-frequency tiles of the stereo signal for each output channel pair. The weightings for the time-frequency tiles may be derived based on the directional parameters, an analysis of the stereo signal, and the output channel layout. The weightings may be used to adaptively process the time-frequency tiles using a de-correlator to reduce or minimize spectral distortions from spatial rendering.

The invention discloses an intelligent sound equipment control method and system based on sound field adaptive adjustment, and relates to the technical field of sound equipment control, and the method comprises the steps: carrying out the time-frequency analysis and matching of a real-time audio stream after the interception of the real-time audio stream, and obtaining a real-time sound field template; positioning the real-time spatial pose coordinates of the user according to the binocular vision sensing data; carrying out sound wave propagation attenuation analysis in a listening area by taking the real-time spatial pose as a reference, and outputting a four-dimensional sound image spatial vector; performing space sound field mapping operation on the real-time sound field template by adopting the four-dimensional sound image space vector to obtain a real-time scene sound field; according to a space pose sequence obtained through camera skeleton time sequence tracking, sound field parameter pre-calculation based on trajectory prediction is executed, and low-delay updating of a real-time scene sound field is carried out according to a calculation result. The technical problem that the sound field cannot be adjusted in real time according to the user position and the environment change in the prior art is solved, and the technical effect of accurately and dynamically adjusting the sound field is achieved.

The present disclosure relates to the technical field of audio control. Provided are a computer-implemented method for audio control, and an electronic device and a storage medium. The computer-implemented method for audio control comprises: on the basis of a specified measurement signal, performing acoustic effect testing on a target space, in order to obtain environmental response information, wherein the environmental response information comprises impulse response information and post-separation impulse response information; analyzing the environmental response information, in order to obtain acoustic characteristic information of the target space; on the basis of the acoustic characteristic information, performing compensation processing on audio to be processed, in order to obtain regulated audio; regulating gains of multiple channels corresponding to the regulated audio, in order to obtain re-regulated audio; and performing multi-channel collaborative optimization processing on the re-regulated audio, in order to obtain audio having a target effect. The method achieves precise compensation for spatial acoustic defects, resolves inter-channel crosstalk, improves the acoustic image localization and spatial perception, significantly improves the perceptual audio quality, and optimizes an output.

The utility model discloses an acoustic imaging device, and belongs to the field of acoustic imaging. The device comprises a microphone array, a data acquisition processing circuit and a connector. The microphone array is connected with the data acquisition and processing circuit, the data acquisition and processing circuit is connected with the connector, and the connector is connected with a mobile intelligent terminal directly or through a data line; the mobile intelligent terminal comprises but is not limited to an intelligent mobile phone and a tablet personal computer. In some embodiments, the connector and the mobile intelligent terminal are combined into a rigid whole, and in some embodiments, a clamp is further included and used for being combined into a rigid whole with the mobile intelligent terminal. Compared with an existing sound imager, the sound imager can display a detection result through the mobile intelligent terminal, can be conveniently combined with the mobile intelligent terminal to form a rigid whole, and is more portable, easier to use and lower in cost.

The invention discloses a vehicle-mounted audio augmented reality system and method based on virtual-real fusion space anchoring, and relates to the technical field of intelligent cabin man-machine interaction, and the system comprises a controller, an augmented reality display device, a distributed loudspeaker array, and a sensor group. The controller receives the virtual image pixel coordinates, the eyeball position coordinates and the vehicle state semantic identifier, and stores a cabin three-dimensional digital model. The system converts a dynamic pixel coordinate into a three-dimensional virtual sound source coordinate by utilizing perspective inverse projection through vision-space mapping logic; the retrieval model anchors the semantic identifier to the physical component coordinates through the semantic-space mapping logic. The audio rendering module calculates a speaker drive gain based on the virtual sound source coordinates to synthesize a virtual sound source. By constructing a unified cabin three-dimensional digital model and a double-channel mapping mechanism, spatial alignment of an audio sound image, an AR visual track and a physical part of a vehicle body is realized, and audio-visual perception splitting is eliminated.

The invention discloses a self-adaptive control method for a sound field of an in-vehicle sound box based on a head position, and the main design concept of the self-adaptive control method lies in that the dynamic optimization of the sound field in the vehicle is carried out by tracking the obvious change of the head position caused by the change of the sitting posture of a driver and passengers in real time, so as to adjust the output effect of a loudspeaker in the vehicle in a self-adaptive manner. Specifically, on the basis of real-time detection of the head position of a person in a vehicle, a control strategy is calculated according to a dynamic sound field: time delay is compensated to solve the time difference problem of sound wave propagation, and the dynamic accuracy of sound image positioning is ensured; through a gain compensation mode, sound pressure level differences of loudspeakers in a vehicle with dynamic different distances relative to the head of a user are balanced, and frequency response flatness is maintained; and through phase correction, phase interference generated by spatial position difference caused by head position change is eliminated, and sound field coherence is optimized. According to the invention, the follow-up adaptation effect of the person in the vehicle and the sound field in the vehicle is realized, and the acoustic quality in the vehicle is obviously improved.

The present application provides output control device, output control system, and control method. The image and the sound with the sense of presence are provided to the passenger of the moving body. The output control device (1A, 1B, and 1C) has: position direction determination part (11), which determines the real position and the real orientation; reading part (12), which reads virtual space data (31); virtual position decision part (131), which decides the virtual position and the virtual orientation according to the real position and the real orientation; display control part (14), which makes the display device (4) display the image of the partial area or the partial object of the virtual space based on the virtual position and the virtual orientation and the setting position of the display device (4); sound output control part (15), which controls the position of the sound image formed by the output sound from the loudspeaker (5) based on the virtual orientation and the relative position relationship between the virtual position and the sound source body.

A new high-fidelity speaker includes a cabinet outer wall, a front partition and a side partition, the front partition and the side partition are arranged in the cabinet outer wall, the side edge of the front partition abuts against the side partition, the remaining edges of the front partition abut against the inner surface of the cabinet outer wall, the internal space surrounded by the cabinet outer wall is divided into a mid-high sound cavity, a bass cavity and a sound guide cavity, one side of the side partition is the sound guide cavity, and the opposite side is the mid-high sound cavity and the bass cavity, a high-pitched speaker port and at least one medium-pitched speaker are opened on the cabinet outer wall part corresponding to the mid-high sound cavity to install the speakers; a bass sound guide port is opened on the cabinet outer wall part corresponding to the sound guide cavity, the bass sound guide port is adjacent to the aforementioned at least two openings distributed on both sides of the side partition; the part of the side partition corresponding to the bass cavity is opened with a bass port to install a bass speaker towards the sound guide cavity, and the bass cavity forms a closed cavity. The speaker has good bass diving, sound image positioning, resolution and small space size.

An information processing apparatus includes an acquisition section configured to acquire a situation of a subject vehicle and a situation of another vehicle, a setting section configured to set, on the basis of the situation of the subject vehicle and the situation of the other vehicle, a position in the subject vehicle at which a sound image of an occupant riding in the other vehicle is localized, and a sound image localization processing section configured to localize the sound image of the occupant at the position set by the setting section. The acquisition section acquires at least a position of a seat in which the occupant is seated, and the setting section sets an empty seat in the subject vehicle as the position where the sound image of the occupant in the other vehicle is localized. The present technology is applicable to an information processing apparatus for controlling telepresence.

The application discloses a ship-boat coupling type inspection robot for offshore wind turbine generator units, which comprises a drone and an unmanned ship, and a ship body monitoring module for assisting the drone in monitoring tasks is arranged on the unmanned ship; the body of the drone is in a cylindrical frame structure, can conveniently pass through inside a wind turbine tower drum, and the body is provided with a drone monitoring module; the drone monitoring module comprises an image acquisition device, a sound and image acquisition device and a vibration acquisition device, and can effectively acquire various data inside the tower drum of the wind turbine generator unit. The ship-boat coupling type inspection robot can realize all-around state monitoring and fault diagnosis of offshore wind turbine generator units by adopting the combined operation mode of the unmanned ship and the drone, can timely master the operation state of the wind turbine generator unit, early discover potential fault signs, reduce the fault rate, ensure safe and efficient power generation operation of the wind turbine generator unit, simultaneously changes the previous manual inspection mode, greatly saves the operation and maintenance cost, and ensures personnel safety.

The invention provides a navigation prompting method and device and electronic equipment, and relates to the technical field of navigation. The method comprises the following steps: determining a steering point according to a navigation path; when the vehicle enters the preset range of the steering point according to the navigation path, the initial position of a navigation sound image is determined according to the relative position of the steering point and a driver, and the navigation sound image is controlled to move from the initial position to the direction corresponding to the steering point, the navigation sound image is used for representing the position of the single loudspeaker for broadcasting the navigation prompt or the sensing orientation after the plurality of loudspeakers for broadcasting the navigation prompt are superposed. According to the invention, fixed broadcasting of navigation prompt is changed into spatialized dynamic broadcasting, the problem that a driver needs to change sight to confirm a route due to lack of direction level of traditional navigation prompt tone is solved, the driver can sense the steering direction through the sound direction while keeping the sight ahead, and the driving safety is improved. Therefore, the intuition and safety of navigation information transmission are improved.

The invention, which relates to the technical field of intelligent monitoring of the power equipment, discloses a system and method for identifying the sound source abnormity of the power equipment by using an acoustic image atlas, the system comprises a three-dimensional stereo array, an image acquisition module, a data processing module and a fault positioning module, the three-dimensional stereo array is composed of a plurality of microphone nodes and is arranged around the power equipment; the image acquisition module performs multi-view image acquisition; the data processing module detects the sound source abnormity of the power equipment; the fault positioning module outputs an abnormal probability to generate a fault part; the method comprises the following steps: generating an acoustic image through a beam forming algorithm, converting the acoustic image into a Mel-frequency spectrogram, and extracting time-frequency characteristics; multi-modal fusion: extracting image features, and aligning the features by using a gating mechanism; abnormal positioning: fusing the features and inputting the lightweight model, generating a fault part coordinate, and synchronously triggering a diagnosis report; through the modules and the identification method, the problem of low efficiency of monitoring and identifying the abnormal sound source image of the power equipment in a limited space is solved.

The sound signal processing method and the sound signal processing apparatus can clearly reproduce sound image localization in a virtual space. The sound signal processing method classifies a virtual sound source representing a reflected sound of a target sound space into a first virtual sound source located between a position of a speaker and a position of a sound receiving point, representing a first sound source of the reflected sound of the target sound space, and a second virtual sound source located outside the speaker, representing a second sound source of the reflected sound of the target sound space. The position of the first virtual sound source is moved to a position at which the first virtual sound source can be played using a position of a speaker near the first virtual sound source only in the case of the first virtual sound source.

An audio processing system and method which calculates, based on spatial metadata of the audio object, a panning coefficient for each of the audio objects in relation to each of a plurality of predefined channel coverage zones. Converts the audio signal into submixes in relation to the predefined channel coverage zones based on the calculated panning coefficients and the audio objects. Each of the submixes indicating a sum of components of the plurality of the audio objects in relation to one of the predefined channel coverage zones. Generating a submix gain by applying an audio processing to each of the submix and controls an object gain applied to each of the audio objects. The object gain being as a function of the panning coefficients for each of the audio objects and the submix gains in relation to each of the predefined channel coverage zones.

An acoustic information processing method includes: a step (S201) of acquiring position information of a sound source object in a three-dimensional sound field based on an acoustic signal; a step (S201) of acquiring position information of a user in the three-dimensional sound field; a step (S202) of determining a plurality of representative directions; and a step (S203) of performing sound image processing of distributing a signal of the sound source object to the plurality of representative directions based on the position information of the user and the position information of the sound source object, in the step (S202) of determining, in a case where a selected candidate is one candidate from among candidates of selectable representative directions, the one candidate is determined as one of the plurality of representative directions, and in a case where the selected candidate is two or more candidates, one of the two or more candidates that is a front direction close to the user is determined as one of the plurality of representative directions.

This invention relates to the field of leakage detection technology, specifically to a process and apparatus for detecting leaks in the sealing layer of an artificial chamber. The process includes creating a sealed space through a gap; continuously evacuating the gap; and using an acoustic imaging device to perform full-area leakage detection on the inner side of the sealing layer while maintaining a preset negative pressure value within the gap. If a leak point exists in the sealing layer, the negative pressure within the gap on the outer side of the sealing layer causes airflow to flow from the inner side of the sealing layer to the outer side of the gap, generating characteristic sound waves for detection and identification by the acoustic imaging device, and visualizing the results as a cloud map. In this invention, by sealing the inherent through-type gap of the artificial chamber to create a sealed space, and then evacuating to construct a full-area negative pressure, full-area leakage detection of the sealing layer is achieved in conjunction with the acoustic imaging device. The leak point is accurately located through visualization of the characteristic sound wave cloud map, thus overcoming the limitations of traditional local detection, improving vacuuming efficiency, and simplifying operation.

Embodiments of the present invention disclose a method, apparatus, electronic device, and storage medium for audio signal mixing and playback. In these embodiments, correlation analysis is performed on the left and right channel signals in a two-channel signal, and a specific signal processing strategy is determined based on the analysis results. By employing targeted processing methods for the two-channel signal in different states, the accuracy of signal processing is improved. Finally, when played back in a 5.1-channel surround sound system, the sound and image are naturally coherent, achieving a good sense of surround and envelopment.

The invention discloses an audio virtual surround processing method, a computer program product and electronic equipment. The audio virtual surround processing method comprises the following steps: acquiring a stereo signal containing two channels as an original audio, and separating an initial middle sound and an initial surround sound corresponding to the stereo signal; in the initial middle sound, first azimuth information corresponding to the two channels is extracted, and target middle sound corresponding to the two channels is generated based on the first azimuth information; extracting second azimuth information respectively corresponding to the two channels from the stereo signal, and generating target surround sounds respectively corresponding to the two channels based on the second azimuth information; the second azimuth information is related to the initial surround sound; and performing virtual surround processing on the original audio based on the initial middle sound, the initial surround sound, the target middle sound and the target surround sound to obtain a multi-channel audio signal serving as a target audio. The target audio can keep the sound image position of the original audio as much as possible.

The present application relates to a kind of audio-visual archives intelligent classification identification and archiving method and system, comprising the following steps: S1: according to the file classification of company audio-visual archives, storage period identification, file title, archiving department and file catalog service rule, constructs service rule system;S2: the original high-definition data of audio-visual archives is obtained and preprocessed, and face recognition library is constructed;S3: audio-visual archives file intelligent classification identification model is constructed;S4: according to the preprocessed audio-visual data and face recognition library, audio-visual archives file intelligent classification identification model is trained, and the optimized audio-visual archives file intelligent classification identification model is obtained;S5: based on the optimized audio-visual archives file intelligent classification identification model, each collection file is intelligently distributed in front of collection link, and based on service rule system verification, auxiliary archivist carries out audio-visual archives file auxiliary classification identification arrangement and cataloging archiving auxiliary work.The present application can accurately classify and catalog audio-visual archives.

The present application relates to the technical field of sonar imaging, and particularly relates to a multi-beam sonar compressed imaging method and system based on depth unfolding, which comprises the following steps: a multi-beam sonar system is used to emit sound waves to the seabed, and a receiving device is used to receive reflected echo signals to obtain multi-channel digital time sequence echo signals; an observation matrix is constructed to compress and sample the multi-channel digital time sequence echo signals to obtain a low-dimensional measurement matrix; the low-dimensional measurement matrix is input into a trained depth unfolding beamforming network to output a reconstructed beamforming spectrum, and a sonar sounding image is generated according to the beamforming spectrum. The present application can greatly improve the imaging speed and support real-time applications such as underwater obstacle avoidance and online monitoring.

To provide an "audio signal processor" for down-mixing a surround audio signal so as to obtain an excellent sound image feeling.SOLUTION: This device is provided with a pseudo surround audio signal generating part 1 for generating a surround audio signal SigA of 7.1. 2ch from an inputted audio stereo signal SigIN of 4ch, a signal processing part 2 for processing the surround audio signal SigA and outputting it as a signal SigB for down mix, and a down mix part 3 for synthesizing the signal SigB for down mix and outputting a stereo audio signal SigOUT of 2ch. The signal processing unit 2 combines the input audio signal of each channel of the SigA with the audio signal obtained by convolving the head-related transfer function from the speaker corresponding to the audio signal to the listener at a ratio corresponding to the position of the speaker, and outputs the combined signal as the audio signal of the SigB.SELECTED DRAWING: Figure 1

The utility model relates to railway vehicle detection technical field, concretely relates to a kind of EMU high-voltage cable terminal acoustic image detection device, including acoustic image acquisition unit and acoustic image analysis unit, both constitute data connection signal transmission, wherein the acoustic image acquisition unit includes microphone array, camera, the microphone array is used for the acoustic perception of high-voltage cable, the camera is used for the image perception of high-voltage cable;The microphone array includes the MEMS type sensor combination of several array elements, and the arrangement of several array elements MEMS type sensor uses the irregular sparse array based on multi-arm spiral array.The utility model has the advantages that: realize EMU high-voltage cable terminal partial discharge abnormal sound non-contact detection, accurately master EMU high-voltage cable use condition and life cycle, scientific guidance roof high-voltage cable overhaul and replacement, can effectively guarantee EMU operation safety and stability, substantially reduce EMU operation and maintenance cost expenditure.

The present disclosure relates to a method and device for acoustically imaging fan noise, an electric vehicle charging pile, and a storage medium. The method comprises: acquiring a noise time-domain signal generated by a fan when the fan is running; performing time-frequency conversion on the noise time-domain signal based on a short-time Fourier transform algorithm to obtain a noise frequency-domain signal; inputting the noise frequency-domain signal into a delay-and-sum beamformer to perform beamforming to obtain beam data; positioning principal component data of the beam data to obtain sound power data; and generating a sound image containing a sound source position according to the sound power data. In this embodiment, the resolution of the noise can be improved by positioning the principal component of the beam data, which achieves the effect of accurately positioning the sound source position and is conducive to obtaining a more accurate sound image.

This invention discloses an algorithm and system for audio and virtual scene synchronization adaptation in digital broadcasting, belonging to the field of virtual digital broadcasting technology. The method includes acquiring video stream data and audio stream data, identifying camera switching frames, and determining the switching type; acquiring the rendering load data of the current virtual scene to calculate the load coefficient, predicting the delay duration of the camera switching frame based on the switching type, and calculating the compensation time of the audio stream data by using the predicted delay duration and load coefficient; acquiring the historical coordinate data and current action characteristics of the virtual character, determining whether the coordinates are lagging or actually displaced, and adjusting the spatial distance attenuation coefficient of the audio stream data based on the determination result; acquiring the camera's pitch angle change data and adjusting the sound image height offset of the audio stream data; and using the compensation time, spatial distance attenuation coefficient, and sound image height offset as setting parameters for the audio stream data. This invention ensures audiovisual synchronization through adjustments in three directions: time, spatial distance, and sound image height.

A method for manufacturing a cymbal (1.1), in particular a ride cymbal, with a shaped sound, especially with a particularly narrow frequency range and short decay time, comprises the following steps: providing a blank made of sheet metal, forming the blank to create a base body (2) with a cymbal shape, automatically separating at least one edge piece from the base body (2) to create at least one sound shape recess (5) in the base body (2), wherein the sound shape recess (5) is open to an edge of the base body (2), and wherein the sound shape recess (5) is created for precisely shaping the sound according to a predetermined sound influence geometry. Furthermore, a cymbal (1.1) with a shaped sound and a system with such a cymbal.

The present application relates to an audio device, an audio control method, and a nonvolatile storage medium. The audio device comprises a separation unit and a sound image positioning adjustment unit; the separation unit separates independent components, unassociated components, and associated components on the basis of a left input signal and a right input signal; the independent components have no association between a left sound channel and a right sound channel, and correspond to end sounds of which sound images are positioned at the left end or the right end of a specified area; the unassociated components have no association between the left sound channel and the right sound channel, and correspond to background sounds having sound image ranges broader than the end sounds; the associated components have an association between the left sound channel and the right sound channel, and correspond to intermediate sounds of which sound images are positioned closer to the inner side than the sound images of the left end sound and the right end sound; and the sound image positioning adjustment unit adjusts at least one of the associated components and the independent components, so that a left sound image and a right sound image of the end sounds generated on the basis of the independent components are positioned at the left end and the right end of the specified area, and the sound images of the intermediate sounds generated on the basis of the associated components are positioned between the positioning positions of the left sound image and the right sound image of the end sounds.

The invention relates to the technical field of sound image detection after cable plugging and unplugging of TV finished products, in particular to full-automatic hand-eye integrated power supply USB plug plugging equipment which comprises a belt conveying line, pallet clamp mechanisms are installed on the two sides of the top of the belt conveying line, and each pallet clamp mechanism comprises two conical guide pin clamping seats installed on the top of the belt conveying line. A limiting clamping groove is formed in the top of the conical guide pin clamping base, two sets of pins are installed on the two sides of the top of the conical guide pin clamping base, two magnetic mounting bases are connected into the limiting clamping groove in a clamped mode, and a limiting open groove is formed in one side of each magnetic mounting base; by adopting the magnetic mounting base on the large magnet groove for adsorption and fixation, compared with pin clamping, the difficulty that the clamps are placed into the clamp base is reduced, the plug clamp is suitable for occasions where wires on a pallet are not wound and pulled, the plug clamp is designed according to different appearance characteristics, and the plug clamp is simple in structure, convenient to use and high in practicability. And the relative position of the plug and the clamp can be floated, so that damage to the TV terminal during rigid plugging and unplugging is avoided, and accurate positioning of the USB floating plug clamp is realized.