CN113766173B - Bone vibrator sound transmission-based transformation defect elimination remote video consultation system and method - Google Patents
Bone vibrator sound transmission-based transformation defect elimination remote video consultation system and method Download PDFInfo
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 44
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 21
- 230000008030 elimination Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 18
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/13—Hearing devices using bone conduction transducers
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Abstract
The utility model discloses a transformer removes lack remote video consultation system and method based on bone oscillator sound transmission, its method is through the audio signal of pickup module collection staff, utilize audio processing module to amplify, filter, in order to reduce the background noise of audio, simultaneously, send audio signal to audio receiving module through main control module, and carry out power amplifier processing to audio signal through digital power amplifier module, and send the audio signal after the power amplifier to bone oscillator speaker, bone oscillator speaker uses human skeleton tissue or human soft tissue as the medium and carries out sound propagation, make the person of wearing need not to worry high altitude wind noise or the influence of scene noisy environment to the conversation, the scene high altitude operation staff who has solved because of wind noise is difficult to effectively hear the voice guidance of backstage expert, and then improved scene defect elimination efficiency, the misjudgement probability of eliminating the lack work has been reduced.
Description
Technical Field
The application relates to the technical field of power grid defect elimination, in particular to a transformer defect elimination remote video consultation system and method based on bone vibrator sound transmission.
Background
In the power industry, various faults and equipment defects, such as meter misalignment, electrical switch failure, line aging faults and the like, exist in the operation of a power facility, and aiming at the defects, the defects are required to be maintained and eliminated by organization personnel in daily life, and the process is the defect elimination.
In the defect elimination process, the power transformation equipment is mainly communicated through telephone, weChat and espace, and the mode lacks interactive video conference expert consultation function, so that the following problems exist:
1) Emergency command and maintenance personnel rely on field operators to report defect information to perform defect elimination preparation work, and if the reported information is misaligned, the defect elimination progress is affected;
2) The level of the overhauling staff is different, and the defect reason can not be quickly found out and eliminated on site, so that the defect has long lasting time and the safe operation of the equipment is influenced;
3) The emergency command and technical skill expert cannot accurately know the field information in real time, which is not beneficial to remote consultation of defects and instruction of overhauling staff to eliminate the defects.
In the work of power supply of the power system, outdoor staff can regularly check and overhaul the power supply network so as to ensure the safe and stable power supply network to transmit electric energy.
At present, when outdoor staff is in power transformation and defect elimination, the staff is required to be completed in an environment with low relative environmental noise, and in the process of processing transformer substation faults, the staff is often in a high-altitude electrified operation state, in high-altitude operation, the on-site environment is often high in wind speed and high in wind noise, and the hearing effect and the intercom effect of the on-site staff are directly influenced by externally-placed sound, and even inaudible. This necessarily results in increased communication difficulty for field operators, and efficiency of consultation, thereby reducing the efficiency of eliminating the deficiency, and possibly even creating additional safety operating risks.
And when outdoor staff works in a noisy field, the staff is difficult to effectively converse with specialists in remote consultation.
At present, the small-size loudspeaker audio frequency external playback and the single microphone are generally applied to power elimination, so that field staff can not effectively hear the voice guidance of a background expert because of wind noise in high-altitude operation, can not effectively diagnose the live voice according to the scene of the field and the background expert, and can not know the judgment result of the background expert on the graph video and dialogue guidance aiming at the live fault point, thereby greatly reducing the attention of the field staff, being dangerous in high-altitude operation, affecting the field elimination efficiency and increasing the misjudgment probability of the elimination work.
Disclosure of Invention
The application provides a transformer defect-eliminating remote video consultation system and method based on bone vibrator sound transmission, which are used for solving the technical problems that on-site high-altitude operation staff caused by wind noise is difficult to effectively hear the voice guidance of a background expert, so that on-site defect-eliminating efficiency is reduced, and the misjudgment probability of defect-eliminating work is increased.
In view of this, the first aspect of the present application provides a method.
From the above technical scheme, the invention has the following advantages:
the invention collects the audio signal of the staff through the pickup module, amplifies and filters the audio signal by utilizing the audio processing module to reduce the background noise of the audio, simultaneously, the audio signal is sent to the audio receiving module through the main control module, the audio signal is subjected to power amplification processing by the digital power amplification module, and the amplified audio signal is sent to the bone oscillator loudspeaker, and the bone oscillator loudspeaker carries out sound propagation by taking the human skeleton tissue or the human soft tissue as a medium, so that a wearer does not need to worry about the influence of high-altitude wind noise or the field noisy environment on the conversation, the problem that the field high-altitude staff is difficult to effectively hear the voice guidance of a background expert caused by wind noise is solved, the field defect eliminating efficiency is further improved, and the misjudgment probability of defect eliminating work is reduced.
Drawings
Fig. 1 is a block diagram of a remote video consultation system for eliminating power transformation and deficiency based on bone vibrator sound transmission according to an embodiment of the present application;
fig. 2 is a block diagram of an audio answering module according to an embodiment of the present disclosure;
fig. 3 is a block diagram of an audio processing module according to an embodiment of the present application;
fig. 4 is a flowchart of a remote video consultation method for eliminating power transformation deficiency based on bone vibrator sound transmission according to an embodiment of the present application.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will clearly and completely describe the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
For easy understanding, please refer to fig. 1, the present invention provides a transformation defect elimination remote video consultation system based on bone vibrator sound transmission, which comprises: the system comprises a pickup module, an audio processing module, a main control module, a communication module and an audio answering module;
the pickup module is used for adopting the audio signals of the staff and sending the audio signals to the audio processing module;
the audio processing module is used for amplifying and filtering the audio signals to obtain filtered audio signals and sending the filtered audio signals to the main control module;
the main control module is used for sending the filtered audio signal to the audio answering module;
as shown in fig. 2, the audio receiving module comprises an audio input module, a digital power amplifier module and a bone oscillator speaker;
the audio input module is used for receiving the filtered audio signal and sending the filtered audio signal to the digital power amplifier module;
the digital power amplifier module is used for performing power amplification processing on the filtered audio signal to obtain a power amplifier audio signal, and sending the power amplifier audio signal to the bone oscillator loudspeaker;
the bone oscillator speaker is used for outputting audio according to the power amplifier audio signal.
The bone oscillator speaker uses bone oscillator as a sound carrier and uses human skeleton tissue or human soft tissue as a medium to carry out sound transmission, instead of external air transmission. The on-site staff can still normally and clearly hear the voice guidance communication of the background expert on the defect treatment under the influence of the external environment noise.
According to the power transformation defect-eliminating remote video consultation system based on bone oscillator sound transmission, the audio signals of workers are collected through the pickup module, the audio signals are amplified and filtered through the audio processing module to reduce background noise of audio, meanwhile, the audio signals are sent to the audio receiving module through the main control module, the audio signals are subjected to power amplification through the digital power amplification module, and the amplified audio signals are sent to the bone oscillator loudspeaker, the bone oscillator loudspeaker carries out sound transmission by taking human bone tissue or human soft tissue as a medium, so that a wearer does not need to worry about the influence of high-altitude wind noise or field noisy environment on conversation, the problem that field high-altitude operators are difficult to effectively hear voice guidance of background experts due to wind noise is solved, further field defect elimination efficiency is improved, and misjudgment probability of defect elimination work is reduced.
In a specific embodiment, the pickup module includes a plurality of MIC pickups, and the plurality of MIC pickups are arranged in a nonlinear matrix arrangement.
It can be understood that through being the nonlinear matrix arrangement setting with a plurality of MIC adapter, can improve the coverage of pickup, and then improve the effect of pickup.
In one particular embodiment, as shown in FIG. 3, the audio processing module includes a pre-amplifier, an antialiasing filter, an analog-to-digital converter, and an adaptive filter;
the pre-amplifier is used for pre-amplifying the audio signal and sending the pre-amplified audio signal to the anti-aliasing filter;
the anti-aliasing filter is used for filtering the audio signal and sending the audio signal after the filtering to the analog-to-digital converter;
the analog-to-digital converter is used for performing analog-to-digital conversion on the audio signal so as to obtain an audio digital signal, and is also used for sending the audio digital signal to the adaptive filter;
the self-adaptive filter comprises an LMS calculation module, an FIR filter, a digital-to-analog converter and a post-amplifier;
the LMS calculation module is used for carrying out residual calculation on the audio digital signal and the pickup channel signal of the pickup module so as to obtain audio residual noise, and is also used for sending the audio residual noise to the FIR filter;
the FIR filter is used for updating the filter coefficient according to the audio residual noise so as to reduce the power of the audio residual noise until convergence, and an adaptive audio digital signal is obtained; and is also configured to send the adaptive audio digital signal to a digital-to-analog converter;
the digital-to-analog converter is used for performing digital-to-analog conversion on the adaptive audio digital signal so as to obtain an audio analog signal, and is also used for sending the audio analog signal to the post-amplifier;
the post-amplifier is used for post-amplifying the audio analog signals and sending the post-amplified audio analog signals to the main control module.
Specifically, the working process of the audio processing module is as follows:
the audio signal is subjected to pre-amplification treatment through a pre-amplifier, and then is subjected to filtering treatment through an anti-aliasing filter, so that the anti-aliasing effect of the audio is improved, and then the audio digital signal is obtained through analog-to-digital conversion; residual calculation is carried out on the audio digital signal and a pickup channel signal (the pickup channel signal is converted into a digital signal in advance) of the pickup module through an LMS calculation module, so as to obtain audio residual noise, wherein the audio residual noise represents an audio error; the filter coefficients are updated by the audio residual noise, so that the power of the audio residual noise is reduced until convergence, and an adaptive audio digital signal is obtained, so that an audio error is counteracted at a pick-up position, and a better noise reduction effect is achieved. The noise-reduced audio signal is transmitted to the main control module after digital-to-analog conversion and post-amplification.
In a specific embodiment, the system further comprises a camera module; the camera module is used for acquiring the field image and sending the field image to the main control module;
the main control module is used for sending the field image to an external background consultation center through the communication module.
In a specific embodiment, the audio answering module comprises a positioning module, wherein the positioning module is used for positioning the position information of the audio answering module and sending the position information to the main control module;
the main control module is also used for sending the position information to an external background consultation center.
In a specific embodiment, the system further comprises a battery management module, and the battery management module is connected with the main control module and is used for providing electric energy for the main control module.
In a specific embodiment, the system further comprises a storage module; the storage module is connected with the main control module and used for storing audio signals.
The above is a detailed description of an embodiment of a remote video consultation system for eliminating power transformation deficiency based on bone oscillator transmission, and the following is a detailed description of an embodiment of a remote video consultation method for eliminating power transformation deficiency based on bone oscillator transmission.
As shown in fig. 4, the invention provides a remote video consultation method for eliminating power transformation deficiency based on bone oscillator sound transmission, which is applied to the remote video consultation system for eliminating power transformation deficiency based on bone oscillator sound transmission, and comprises the following steps:
s1, an audio signal of a worker is adopted through a pickup module, and the audio signal is sent to an audio processing module;
s2, amplifying and filtering the audio signal through the audio processing module to obtain a filtered audio signal, and sending the filtered audio signal to the main control module;
s3, sending the filtered audio signal to an audio answering module through the main control module;
s4, receiving a filtered audio signal through an audio input module of the audio answering module, and sending the filtered audio signal to the digital power amplification module;
s5, performing power amplification processing on the filtered audio signal through a digital power amplification module to obtain a power amplification audio signal, and sending the power amplification audio signal to a bone oscillator loudspeaker;
s6, outputting audio frequency according to the power amplifier audio signal through the bone oscillator loudspeaker.
Further, step S2 includes:
s201, performing pre-amplification processing on an audio signal;
s202, filtering the audio signal after the pre-amplification;
s203, performing analog-to-digital conversion on the audio signal subjected to the filtering treatment, so as to obtain an audio digital signal;
s204, carrying out residual calculation on the audio digital signal and a pickup channel signal of a pickup module, so as to obtain audio residual noise;
s205, updating a filter coefficient according to the audio residual noise, so as to reduce the power of the audio residual noise until convergence, and obtaining a self-adaptive audio digital signal;
s206, performing digital-to-analog conversion on the adaptive audio digital signal to obtain an audio analog signal;
s207, after-amplifying the audio analog signals, sending the after-amplifying audio analog signals to a main control module.
The flow of the power transformation defect elimination remote video consultation method based on bone oscillator transmission is consistent with the working flow of the power transformation defect elimination remote video consultation system based on bone oscillator transmission, and is not repeated here.
The method collects the audio signals of the staff through the pickup module, amplifies and filters the audio signals by utilizing the audio processing module to reduce the background noise of the audio, simultaneously, the audio signals are sent to the audio receiving module through the main control module, the audio signals are subjected to power amplification processing through the digital power amplification module, and the amplified audio signals are sent to the bone oscillator loudspeaker, and the bone oscillator loudspeaker carries out sound propagation by taking human bone tissues or human soft tissues as media, so that a wearer does not need to worry about the influence of high-altitude wind noise or on-site noisy environments on conversation, the problem that on-site high-altitude operators are difficult to effectively hear the voice guidance of background experts due to wind noise is solved, the on-site defect eliminating efficiency is further improved, and the misjudgment probability of defect eliminating work is reduced.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (6)
1. The utility model provides a transformer removes lack remote video consultation system based on bone oscillator sound transmission which characterized in that includes: the system comprises a pickup module, an audio processing module, a main control module, a communication module and an audio answering module;
the pickup module is used for adopting an audio signal of a worker and sending the audio signal to the audio processing module;
the audio processing module is used for amplifying and filtering the audio signal to obtain a filtered audio signal, and sending the filtered audio signal to the main control module;
the main control module is used for sending the filtered audio signal to the audio answering module;
the audio receiving module comprises an audio input module, a digital power amplification module and a bone oscillator loudspeaker;
the audio input module is used for receiving the filtered audio signal and sending the filtered audio signal to the digital power amplification module;
the digital power amplification module is used for performing power amplification processing on the filtered audio signal to obtain a power amplification audio signal, and sending the power amplification audio signal to the bone oscillator loudspeaker;
the bone oscillator loudspeaker is used for outputting audio according to the audio signal of the power amplifier;
the audio processing module comprises a pre-amplifier, an anti-aliasing filter, an analog-to-digital converter and an adaptive filter;
the pre-amplifier is used for pre-amplifying the audio signal and sending the pre-amplified audio signal to the anti-aliasing filter;
the antialiasing filter is used for performing filtering processing on the audio signal and sending the audio signal after the filtering processing to the analog-to-digital converter;
the analog-to-digital converter is used for performing analog-to-digital conversion on the audio signal so as to obtain an audio digital signal, and is also used for sending the audio digital signal to the adaptive filter;
the self-adaptive filter comprises an LMS calculation module, an FIR filter, a digital-to-analog converter and a post-amplifier;
the LMS calculation module is used for carrying out residual calculation on the audio digital signal and the pickup channel signal of the pickup module so as to obtain audio residual noise, and is also used for sending the audio residual noise to the FIR filter;
the FIR filter is used for updating a filter coefficient according to the audio residual noise so as to reduce the power of the audio residual noise until convergence, and an adaptive audio digital signal is obtained; and is further configured to send the adaptive audio digital signal to the digital-to-analog converter;
the digital-to-analog converter is used for performing digital-to-analog conversion on the adaptive audio digital signal so as to obtain an audio analog signal, and is also used for sending the audio analog signal to the post-amplifier;
the post-amplifier is used for post-amplifying the audio analog signals and sending the post-amplified audio analog signals to the main control module;
the audio receiving module comprises a positioning module, wherein the positioning module is used for positioning the position information of the audio receiving module and sending the position information to the main control module;
the main control module is also used for sending the position information to an external background consultation center.
2. The remote video consultation system for eliminating the power transformation deficiency based on bone oscillator sound transmission according to claim 1, wherein the sound pickup module comprises a plurality of MIC sound pickup devices, and the MIC sound pickup devices are arranged in a nonlinear matrix.
3. The bone vibrator sound transmission-based transformation defect elimination remote video consultation system according to claim 1, further comprising a camera module; the camera module is used for acquiring field images and sending the field images to the main control module;
the main control module is used for sending the field image to an external background consultation center through the communication module.
4. The bone vibrator sound transmission-based power transformation defect elimination remote video consultation system according to claim 1, further comprising a battery management module, wherein the battery management module is connected with the main control module and is used for providing electric energy for the main control module.
5. The bone vibrator sound transmission-based transformation defect elimination remote video consultation system according to claim 1, further comprising a storage module; the storage module is connected with the main control module and is used for storing the audio signals.
6. The remote video consultation method for eliminating the power transformation deficiency based on the bone oscillator transmission is applied to the remote video consultation system for eliminating the power transformation deficiency based on the bone oscillator transmission according to any one of claims 1 to 5, and is characterized by comprising the following steps:
the method comprises the steps that an audio signal of a worker is adopted by a pickup module, and the audio signal is sent to an audio processing module;
amplifying and filtering the audio signal through the audio processing module to obtain a filtered audio signal, and sending the filtered audio signal to a main control module;
the filtered audio signal is sent to an audio answering module through the main control module;
receiving the filtered audio signal through an audio input module of the audio answering module, and sending the filtered audio signal to a digital power amplification module;
performing power amplification processing on the filtered audio signal through the digital power amplification module to obtain a power amplification audio signal, and sending the power amplification audio signal to a bone oscillator loudspeaker;
outputting audio according to the audio signal of the power amplifier through the bone oscillator loudspeaker;
the step of amplifying and filtering the audio signal through the audio processing module to obtain a filtered audio signal, and sending the filtered audio signal to the main control module comprises the following steps:
by pre-amplifying the audio signal;
filtering the audio signal after the pre-amplification;
performing analog-to-digital conversion on the audio signal after the filtering treatment, thereby obtaining an audio digital signal;
residual calculation is carried out on the audio digital signal and a pickup channel signal of the pickup module, so that audio residual noise is obtained;
updating a filter coefficient according to the audio residual noise, so as to reduce the power of the audio residual noise until convergence, and obtaining a self-adaptive audio digital signal;
performing digital-to-analog conversion on the self-adaptive audio digital signal to obtain an audio analog signal;
and sending the post-amplified audio analog signals to the main control module through post-amplification processing of the audio analog signals.
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| CN203933733U (en) * | 2014-07-14 | 2014-11-05 | 李倩倩 | The interactive communication device of a kind of remote sound |
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