CN112019977A - Audio acquisition device for big data acquisition - Google Patents

Audio acquisition device for big data acquisition Download PDF

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CN112019977A
CN112019977A CN202010924291.9A CN202010924291A CN112019977A CN 112019977 A CN112019977 A CN 112019977A CN 202010924291 A CN202010924291 A CN 202010924291A CN 112019977 A CN112019977 A CN 112019977A
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audio
unit
audio signal
fingerprint
fingerprint information
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杨美纶
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Guangzhou Haoshun Technology Co ltd
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Guangzhou Haoshun Technology Co ltd
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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
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
    • G06F18/20—Analysing
    • G06F18/22—Matching criteria, e.g. proximity measures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1347—Preprocessing; Feature extraction
    • G06V40/1359—Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1365—Matching; Classification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/04—Structural association of microphone with electric circuitry therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor

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  • Physics & Mathematics (AREA)
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  • Signal Processing (AREA)
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Abstract

The invention relates to the technical field of audio acquisition, and discloses an audio acquisition device for big data acquisition. According to the audio acquisition device for acquiring the big data, the audio receiving and transmitting device is arranged, so that the sound information transmitted by the sound pick-up can be stored and coded, the interference of other information wave bands on the sound information is reduced, the confidentiality of the sound information is improved, the sound information is not easy to steal by other people, even if the sound pick-up is damaged, the sound information in the area cannot be collected, the sound information collected before cannot be damaged, and the subsequent use is influenced; through setting up the arrangement case, can install audio frequency receiving and transmitting device in appointed place, can also protect audio frequency receiving and transmitting device not receive the influence of external strength simultaneously.

Description

Audio acquisition device for big data acquisition
Technical Field
The invention relates to the technical field of audio acquisition, in particular to an audio acquisition device for acquiring big data.
Background
Big Data (Big Data) refers to large-volume Data that is difficult for general software tools to capture, manage and analyze, and the Big Data is "Big" and not just "Big of capacity", but has a greater meaning: through the exchange, integration and analysis of mass data, new knowledge is discovered, new value is created, and 'big knowledge', 'big technology', 'big profit' and 'big development' are brought, so that the big data can exert the strength of the big data only by collecting enough information from all sides, and audio is one of the information required to be collected by the big data, and an audio acquisition device is required to be installed in order to collect the audio data of various occasions.
However, many existing audio collecting devices store collected sound information in a sound pick-up, the sound is amplified by a sound amplifying circuit in the sound pick-up and then transmitted to a terminal for analysis and storage in the form of a wireless network or a network cable, and the sound pick-up is installed in an area with much traffic in order to collect the sound information, and is easily damaged by people due to carelessness, the information stored in the sound pick-up is not available, and the sound directly transmitted by the sound pick-up is easily interfered by other bands or stolen by a malicious person, which is not beneficial to the collection and use of big data.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the audio acquisition device for acquiring the big data, which has the advantages of reduced interference and higher confidentiality when the sound information is used as a transfer through the audio receiving and transmitting device, and solves the problem that the sound information is easily influenced by external factors in the process of directly transmitting the sound information to the terminal through the sound pick-up.
The invention provides the following technical scheme: the utility model provides an audio frequency collection system for big data acquisition, includes that audio frequency receives transmission device, audio frequency input interface has been seted up in audio frequency receiving transmission device's left side, the quantity of audio frequency input interface is three, and three audio frequency input interface all is connected with the audio transmission line, the audio transmission line other end is connected with the adapter connecting wire, and the other end of adapter connecting wire is connected with the adapter, transmission device's lateral surface is received to audio frequency is connected with settles the case, and the lateral surface fixed mounting who settles the bottom half has the mounting bracket.
Preferably, the right side surface of the audio receiving and transmitting device is provided with an audio output interface, a power interface and a network cable interface, the power interface is positioned in the middle, the left side of the power interface is the audio output interface, and the right side of the power interface is the network cable interface.
Preferably, the adapter includes the adapter body, and the centre of adapter body installs the audio frequency and receives the microphone, fixed screw has been seted up at the edge of adapter body, the quantity of fixed screw is four, and four fixed screw equidistance arrange in the edge of adapter body.
Preferably, settle case and bag including settling the case box, and settle the inner chamber of case box from the outside in and install the dust screen in proper order and the baffle that absorbs water, the surface of settling the case box is equipped with weak crown's louvre, and the inner chamber of settling the case box is linked together through louvre and the outside of settling the case box.
Preferably, settle the entry with audio transmission line, audio output line, power cord and net twine looks adaptation all seted up on the two sides around the case box of arrangement, and the entrance installs waterproof rubber buffer, waterproof rubber buffer's centre is equipped with the opening, there is the fly leaf one side of settling the case box through hinged joint.
Preferably, the two sides and the bottom of the mounting frame are fixedly connected with mounting pieces, and a plurality of mounting holes are formed in the mounting pieces.
Preferably, the kneck that the audio frequency transmission line is connected one end with the audio input interface and the kneck of adapter connecting wire all inwards form the concave area, the kneck that the audio frequency transmission line is connected one end with the adapter connecting wire and the inside of audio input interface all are formed with protruding connecting piece, and the concave area corresponds the adaptation respectively with protruding connecting piece.
Preferably, the audio capturing apparatus further includes: one end of the audio denoising module is connected with the sound pick-up through the sound pick-up connecting line, and the other end of the audio denoising module is connected with the audio input interface and used for removing dryness of a target audio signal collected by the sound pick-up;
the audio denoising module comprises:
a first acquisition unit configured to acquire the target audio signal;
the separation unit is connected with the first acquisition unit and is used for separating the target audio signal into a first target audio signal and a second target audio signal, wherein the first target audio signal is a target audio signal without a noise signal, and the second target audio signal is a target audio signal containing a noise signal;
the processing unit is connected with the separation unit and used for enhancing the second target audio signal to obtain a third target audio signal, and the third target audio signal is obtained after enhancement processing is carried out on the second target audio signal;
the dividing unit is connected with the processing unit and is used for dividing the third target audio signal into a plurality of first frequency bands which are sequentially arranged according to a preset rule and dividing the first target audio signal into a plurality of second frequency bands which are sequentially arranged according to the preset rule;
the comparison unit is connected with the dividing unit and used for comparing the plurality of first frequency bands with the plurality of second frequency bands, counting third frequency bands except for the first frequency band which is the same as the second frequency band in the first frequency band, and counting the plurality of third frequency bands;
the generating unit is connected with the comparing unit and used for generating noise signals according to the plurality of third frequency bands;
a denoising unit, one end of which is connected with the processing unit and the other end of which is connected with the generating unit, for removing a third target audio signal which is the same as the noise signal from the third target audio signal according to the noise signal to obtain a fourth target audio signal;
the synthesis unit is simultaneously connected with the separation unit and the denoising unit and is used for synthesizing the first target audio signal and the fourth target signal to synthesize a final noiseless frequency signal;
and the transmission unit is connected with the synthesis unit and is used for transmitting the noiseless frequency signal to the audio input interface.
Preferably, the audio capturing apparatus further includes: one end of the identity authentication module is connected with the audio output interface, and the other end of the identity authentication module is in communication connection with the user terminal and is used for authenticating identity information of the user terminal;
the identity verification module comprises:
the communication unit is used for realizing communication connection with the user terminal;
the second acquisition unit is connected with the communication unit and used for acquiring the current fingerprint information of the current user of the user terminal;
the analysis unit is connected with the second acquisition unit and used for analyzing the current fingerprint information to analyze the current fingerprint texture characteristics and fingerprint lines;
and the calculating unit is connected with the analyzing unit and used for calculating the similarity between the current fingerprint information and the preset fingerprint information according to the current fingerprint texture characteristics and the fingerprint lines:
Figure BDA0002667781620000041
wherein Q represents the similarity, x, of the current fingerprint information and the preset fingerprint information1Expressed as said current fingerprint texture feature, x2A predetermined fingerprint texture feature, θ, expressed as said predetermined fingerprint information1The weight value of the fingerprint texture feature comparison result is 0.3, N is the number of fingerprint lines, and SiThe quality of the detail at the tail end of the line expressed as the ith fingerprint line, M is the number of fingerprint lines in the preset fingerprint information, and GjLine end detail quality, theta, expressed as jth fingerprint line in preset fingerprint information2Expressed as the weight value occupied by the fingerprint line end detail quality comparison result, the value is 0.3, TiLine features, K, expressed as the ith fingerprint line in the current fingerprint informationjLine feature, theta, expressed as jth fingerprint line in the preset fingerprint information3The weight value of the line characteristic comparison result is 0.4;
comparing the similarity between the current fingerprint information and preset fingerprint information with a preset threshold value to obtain a comparison result:
Figure BDA0002667781620000042
wherein Q is1Expressed as the preset threshold value, and L is expressed as the comparison result;
when the comparison result is that the current fingerprint information cannot pass the verification, a reminding instruction is generated, and when the comparison result is that the current fingerprint information passes the verification, a connection instruction is generated;
the reminding unit is connected with the computing unit and used for sending a reminding that the identity authentication cannot pass and the audio data cannot be acquired to the user terminal according to the reminding instruction;
and the connection unit is connected with the computing unit and used for connecting the audio output interface (12) with the user terminal according to the connection instruction.
Compared with the prior art, the invention has the following beneficial effects:
1. this big audio acquisition device for data acquisition, receive transmission device through setting up the audio frequency, can store the code to the sound information that the adapter transmission was come, convert to the state that is difficult for receiving the interference, other information wave bands have been reduced to the interference of sound information, the security of sound information has been increased simultaneously, be difficult for being stolen by other people, influence the collection of big data and use, even the adapter damages, also can not collect the sound information in this region, and can not let the sound information damage of collecting before, influence subsequent use.
2. The audio acquisition device for big data acquisition can be arranged at a designated place by arranging the arrangement box, and can protect the audio reception and transmission device from being influenced by external force; the heat dissipation holes are arranged, so that heat generated by the audio receiving and transmitting device can be dissipated to the outside, and the audio receiving and transmitting device cannot be damaged due to overheating; through the arrangement of the dustproof net, dust can be prevented from entering from the radiating holes, so that a circuit board in the audio receiving and transmitting device is damaged; through setting up the baffle that absorbs water, prevent to settle incasement portion and have steam and make audio frequency receiving and transmitting device damage.
3. The method has the advantages that the target audio signal is divided into the noise-free first target audio signal and the noise-free second target audio signal, which part of the target audio signal is noisy can be accurately determined, manual noise signal troubleshooting is avoided, labor is saved, work efficiency is improved, and good bedding is provided for subsequent drying removal work.
4. The similarity of calculating and presetting fingerprint information is extracted through fingerprint lines and fingerprint texture features in the current fingerprint information, the comparison result is more accurate compared with the prior art that fingerprint information is directly compared, and the comparison result can be ensured by utilizing the similarity of judging the current fingerprint information and presetting fingerprint information through the details such as the fingerprint lines and the fingerprint texture features, the safety of target audio signals is ensured, economic loss and the like caused by embezzlement of outsiders are prevented, and the experience of users is further improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the left side of the audio receiving and transmitting device according to the present invention;
FIG. 3 is a schematic diagram of the right side of the audio receiving and transmitting device according to the present invention;
FIG. 4 is a schematic diagram of an audio cable structure according to the present invention;
FIG. 5 is a schematic view of a pickup according to the present invention;
FIG. 6 is a schematic view of the structure of the mounting bracket of the present invention;
FIG. 7 is a front view of the installation box of the present invention;
FIG. 8 is a schematic structural diagram of an audio denoising module according to the present invention;
fig. 9 is a schematic structural diagram of an authentication module according to the present invention.
In the figure: 1. an audio receiving and transmitting device; 11. an audio input interface; 12. an audio output interface; 13. a power interface; 14. a network cable interface; 2. an audio transmission line; 3. a sound pickup; 31. a pickup body; 32. an audio receiving microphone; 33. fixing screw holes; 4. a sound pick-up connecting wire; 5. a placement box; 51. arranging a box body; 52. heat dissipation holes; 53. a dust screen; 54. a water-absorbing partition plate; 55. a waterproof rubber plug; 6. a mounting frame; 61. mounting a sheet; 62. and (7) installing holes. 7. An audio denoising module; 71. a first acquisition unit; 72. a separation unit; 73. a processing unit; 74. dividing the cells; 75. a comparison unit; 76. a generating unit; 77. a denoising unit; 78. a synthesis unit; 79. a transmission unit; 8. an identity verification module; 81. a communication unit; 82. a second acquisition unit; 83. an analysis unit; 84. a calculation unit; 85. a reminding unit; 86. the unit is turned on.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, an audio collecting device for collecting big data comprises an audio receiving and transmitting device 1, the audio receiving and transmitting device 1 is arranged to store and encode the sound information transmitted from the sound pick-up 3, and convert the sound information into a state not easy to be interfered, thereby reducing the interference of other information bands to the sound information, increasing the security of the sound information, not easy to be stolen by others, and affecting the collection and use of the big data, even if the sound pick-up 3 is arranged with a placing box, the audio receiving and transmitting device can be installed in a designated place, and simultaneously the audio receiving and transmitting device can be protected from being damaged by external force, and the sound information in the area can not be collected, and the sound information collected before can not be damaged, and the subsequent use can not be affected, the right side surface of the audio receiving and transmitting device 1 is provided with an audio output interface 12, A power interface 13 and a network cable interface 14, wherein the power interface 13 is positioned in the middle, the left side of the power interface 13 is provided with an audio output interface 12, the right side of the power interface 13 is provided with the network cable interface 14, the left side of the audio receiving and transmitting device 1 is provided with audio input interfaces 11, the number of the audio input interfaces 11 is three, the three audio input interfaces 11 are all connected with audio transmission lines 2, three sound pickups 3 can be connected by arranging the three audio input interfaces 11, so that the audio receiving and transmitting device 1 can be maximally utilized, concave areas are formed inwards at the interface at the end, connected with the audio input interface 11, of the audio transmission line 2 and the interface of the audio input interface 4, convex connecting pieces are formed at the interface at the end, connected with the audio pick-up connecting line 4, and the concave areas are respectively correspondingly matched with the convex connecting pieces, the sound pick-up 3 is connected with the audio receiving and transmitting device through the audio transmission line 2 because when the distance between the sound pick-up 3 and the audio receiving and transmitting device 1 is too far, the audio transmission line 2 with different lengths can be selected for connection, the other end of the audio transmission line 2 is connected with a sound pick-up connecting line 4, the other end of the sound pick-up connecting line 4 is connected with the sound pick-up 3, the sound pick-up 3 comprises a sound pick-up body 31, an audio receiving microphone 32 is arranged in the middle of the sound pick-up body 31, the edge of the sound pick-up body 31 is provided with four fixing screw holes 33, the four fixing screw holes 33 are arranged at the edge of the sound pick-up body 31 at equal intervals, the outer side surface of the audio receiving and transmitting device 1 is connected with a mounting box 5, the mounting box 5 comprises a mounting box body 51, and the audio, meanwhile, the audio receiving and transmitting device 1 can be protected from being influenced by external force, a dustproof net 53 and a water absorption partition plate 54 are sequentially arranged in the inner cavity of the box body 51 from outside to inside, and dust can be prevented from entering from the heat dissipation holes 52 by arranging the dustproof net 53, so that a circuit board in the audio receiving and transmitting device 1 is damaged; the water absorption baffle plate 54 is arranged to prevent the audio receiving and transmitting device 1 from being damaged due to the existence of water vapor inside the placing box 5, the weak crown heat dissipation holes 52 are arranged on the surface of the placing box body 51, the heat generated by the audio receiving and transmitting device 1 can be dissipated to the outside through the heat dissipation holes 52 without causing the audio receiving and transmitting device 1 to be damaged due to overheating, the inner cavity of the placing box body 51 is communicated with the outside of the placing box body 51 through the heat dissipation holes 52, inlets matched with the audio transmission line 2, the audio output line, the power line and the network line are arranged on the front and the back surfaces of the placing box body 51, a waterproof rubber plug 55 is arranged at the inlet, the waterproof rubber plug 55 is arranged to prevent water vapor from entering from the inlet and affecting the use of the audio receiving and transmitting device 1, an opening is arranged in the middle of the waterproof rubber plug 55, and settle the lateral surface fixed mounting of case 5 bottom and have mounting bracket 6, the equal fixedly connected with installation piece 61 in both sides and the bottom of mounting bracket 6, and seted up a plurality of mounting holes 62 on the installation piece 61.
Working principle, when in use, the sound pick-up 3 is fixed on the wall of a designated area or other places where the sound pick-up can be installed, such as places in shopping malls, subway stations and the like, through the fixing screw hole 33 arranged on the edge of the sound pick-up body 31, the designated area should satisfy the conditions of more people flow and difficult touch by others, and simultaneously, a proper and secret place is selected to fix the mounting rack 6, then the audio transmission line 2, the audio output line, the power line and the network cable respectively pass through the corresponding waterproof rubber plugs 55 on the box body 51 of the placement box, then the audio transmission line 2, the audio output line, the power line and the network cable are correspondingly connected with the audio input interface 11, the audio output interface 12, the power interface 13 and the network cable interface 14 arranged on the side surface of the audio receiving and transmitting device 1, then the movable plate is closed, then connect the other end of the audio transmission line 2 with the connection line 4 of the sound pick-up, then start to detect, make sound near the sound pick-up 3, the audio receiving microphone 32 receives the sound, then pass the internal sound amplifying circuit of the sound pick-up body 31, amplify the sound information, then transmit to the audio receiving and transmitting device 1, then the audio receiving and transmitting device 1 stores the sound information, in the coding, reduce the interference of the sound information by other wave band information, also strengthen the confidentiality, then transmit to the terminal to store, compare the information stored in the terminal with the sound on the spot of the sound pick-up 3, can put into use without error.
In one embodiment, as shown in fig. 8, the audio capturing apparatus further includes: an audio denoising module 7, one end of which is connected with the sound pickup 3 through the sound pickup connecting wire 4, and the other end of which is connected with the audio input interface 11, for removing dryness of the target audio signal collected by the sound pickup 3;
the audio denoising module 7 includes:
a first acquisition unit 71 configured to acquire the target audio signal;
a separating unit 72, connected to the first obtaining unit 71, configured to separate the target audio signal into a first target audio signal and a second target audio signal, where the first target audio signal is a target audio signal without a noise signal, and the second target audio signal is a target audio signal including a noise signal;
the processing unit 73 is connected to the separating unit 72, and is configured to perform enhancement processing on the second target audio signal to obtain a third target audio signal, where the third target audio signal is obtained after the enhancement processing is performed on the second target audio signal;
a dividing unit 74, connected to the processing unit 73, configured to divide the third target audio signal into a plurality of sequentially arranged first frequency bands according to a preset rule, and further divide the first target audio signal into a plurality of sequentially arranged second frequency bands according to the preset rule;
a comparing unit 75, connected to the dividing unit 74, configured to compare the plurality of first frequency bands with the plurality of second frequency bands, count third frequency bands, which are the same as the second frequency bands, in the first frequency bands, and count a plurality of third frequency bands;
a generating unit 76, connected to the comparing unit 75, for generating noise signals according to the plurality of third frequency bands;
a denoising unit 77, one end of which is connected to the processing unit 73, and the other end of which is connected to the generating unit 76, for removing a third target audio signal, which is the same as the noise signal, from the third target audio signal according to the noise signal to obtain a fourth target audio signal;
a synthesizing unit 78, connected to the separating unit 72 and the denoising unit 77, for synthesizing the first target audio signal and the fourth target signal to synthesize a final noiseless audio signal;
a transmission unit 79 connected to the synthesis unit 78 for transmitting the noiseless audio signal to the audio input interface 11.
The working principle of the technical scheme is as follows: the method comprises the steps of acquiring a target audio signal acquired by a pickup by using a first acquisition unit, separating the target audio signal into a first target audio signal without a noise signal and a second target audio signal with a noise signal by using a separation unit because the target audio signal has noise, performing left enhancement processing on the second target audio signal to obtain a third target audio signal, dividing the third target audio signal into a plurality of first frequency bands which are sequentially arranged according to a preset rule by using a dividing unit, dividing the first target audio signal into a plurality of second frequency bands at the same time, acquiring the first frequency band with the noise and the second frequency band without the noise at the moment, counting third frequency bands except for the first frequency band which is the same as the second frequency band in the first frequency band, counting a plurality of third frequency bands which are frequency bands of the noise signal at the moment, and generating the noise signal according to the third frequency bands, and then removing a third target audio signal which is the same as the noise signal in the third target audio signal by using a drying unit to obtain a fourth target audio signal which is the same as the first target audio signal and has no noise, then synthesizing the first target audio signal and the fourth target audio signal to obtain a final noise-free audio signal, and transmitting the noise-free audio signal to an audio interface through a transmission unit.
The beneficial effects of the above technical scheme are: the method has the advantages that the target audio signal is divided into the noise-free first target audio signal and the noise-free second target audio signal, which part of the target audio signal is noisy can be accurately determined, manual noise signal troubleshooting is avoided, labor is saved, work efficiency is improved, and good bedding is provided for subsequent drying removal work.
In one embodiment, as shown in fig. 9, the audio capturing apparatus further includes: an identity authentication module 8, one end of which is connected with the audio output interface 12 and the other end of which is in communication connection with the user terminal, and is used for authenticating the identity information of the user terminal;
the identity verification module 8 comprises:
a communication unit 81, configured to implement communication connection with the user terminal;
a second obtaining unit 82, connected to the communication unit 81, for obtaining current fingerprint information of a current user of the user terminal;
the analyzing unit 83 is connected to the second obtaining unit 82, and is configured to analyze the current fingerprint information to analyze a current fingerprint texture feature and a fingerprint line;
the calculating unit 84 is connected to the analyzing unit 83, and configured to calculate, according to the current fingerprint texture feature and the fingerprint line, a similarity between the current fingerprint information and preset fingerprint information:
Figure BDA0002667781620000111
wherein Q representsSimilarity, x, between the current fingerprint information and the preset fingerprint information1Expressed as said current fingerprint texture feature, x2A predetermined fingerprint texture feature, θ, expressed as said predetermined fingerprint information1The weight value of the fingerprint texture feature comparison result is 0.3, N is the number of fingerprint lines, and SiThe quality of the detail at the tail end of the line expressed as the ith fingerprint line, M is the number of fingerprint lines in the preset fingerprint information, and GjLine end detail quality, theta, expressed as jth fingerprint line in preset fingerprint information2Expressed as the weight value occupied by the fingerprint line end detail quality comparison result, the value is 0.3, TiLine features, K, expressed as the ith fingerprint line in the current fingerprint informationjLine feature, theta, expressed as jth fingerprint line in the preset fingerprint information3The weight value of the line characteristic comparison result is 0.4;
comparing the similarity between the current fingerprint information and preset fingerprint information with a preset threshold value to obtain a comparison result:
Figure BDA0002667781620000121
wherein Q is1Expressed as the preset threshold value, and L is expressed as the comparison result;
when the comparison result is that the current fingerprint information cannot pass the verification, a reminding instruction is generated, and when the comparison result is that the current fingerprint information passes the verification, a connection instruction is generated;
a reminding unit 85, connected to the calculating unit 84, for sending a reminder that the user terminal cannot pass the authentication and cannot acquire audio data according to the reminding instruction;
a connection unit 86, connected to the computing unit 84, for connecting the audio output interface 12 to the user terminal according to the connection instruction;
in this embodiment, the quality of the detail at the end of the fingerprint line is the line definition at the end of the fingerprint line.
The working principle of the technical scheme is as follows: before a user wants to call a target voice signal collected by the audio collection device, the identity information of a user terminal is verified by using an identity verification module to determine whether a current user has a calling authority, and the specific steps are as follows: the communication unit is used for connecting communication connection with the user terminal, then the second acquisition unit is used for acquiring current fingerprint information of a current user of the user terminal, the analysis unit is used for analyzing the current fingerprint information, current fingerprint texture features and fingerprint lines are analyzed, the calculation unit is used for calculating the similarity between the current fingerprint signal and preset fingerprint information according to the current fingerprint texture features and the fingerprint lines, whether the identity information of the current user can be verified or not is further confirmed according to the similarity, when the identity information can be verified, the connection unit is used for connecting connection with the user terminal so that the user terminal can call a target audio signal, and when the identity information cannot be verified, the reminding unit is used for sending reminding that audio data cannot be acquired to the user terminal.
The beneficial effects of the above technical scheme are: the similarity of calculating and presetting fingerprint information is extracted through fingerprint lines and fingerprint texture features in the current fingerprint information, the comparison result is more accurate compared with the prior art that fingerprint information is directly compared, and the comparison result can be ensured by utilizing the similarity of judging the current fingerprint information and presetting fingerprint information through the details such as the fingerprint lines and the fingerprint texture features, the safety of target audio signals is ensured, economic loss and the like caused by embezzlement of outsiders are prevented, and the experience of users is further improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides an audio acquisition device for big data acquisition, includes audio frequency receiving and transmitting device (1), its characterized in that: audio input interface (11) have been seted up in the left side that transmission device (1) was received to audio frequency, the quantity of audio input interface (11) is three, and three audio input interface (11) all is connected with audio transmission line (2), audio transmission line (2) other end is connected with adapter connecting wire (4), and the other end of adapter connecting wire (4) is connected with adapter (3), the lateral surface that transmission device (1) was received to audio frequency is connected with settles case (5), and settles the lateral surface fixed mounting of case (5) bottom and have mounting bracket (6).
2. The audio acquisition device for big data acquisition according to claim 1, wherein: the audio receiving and transmitting device is characterized in that an audio output interface (12), a power interface (13) and a network cable interface (14) are arranged on the right side surface of the audio receiving and transmitting device (1), the power interface (13) is located in the middle, the audio output interface (12) is arranged on the left side of the power interface (13), and the network cable interface (14) is arranged on the right side of the power interface (13).
3. The audio acquisition device for big data acquisition according to claim 1, wherein: pickup (3) include pickup body (31), and the centre of pickup body (31) installs audio frequency receiving microphone (32), fixed screw (33) have been seted up at the edge of pickup body (31), the quantity of fixed screw (33) is four, and four fixed screw (33) equidistance arrange in the edge of pickup body (31).
4. The audio acquisition device for big data acquisition according to claim 1, wherein: place case (5) including settling case box (51), and the inner chamber of settling case box (51) is from outside to inside installs dust screen (53) and baffle (54) that absorbs water in proper order, the surface of settling case box (51) is equipped with weak crown louvre (52), and the inner chamber of settling case box (51) is linked together through louvre (52) and the outside of settling case box (51).
5. The audio collection device for big data collection according to claim 1 or 4, wherein: settle the entry with audio transmission line (2), audio output line, power cord and net twine looks adaptation all seted up on the two sides around case box (51), and the entrance installs waterproof rubber buffer (55), the centre of waterproof rubber buffer (55) is equipped with the opening, there is the fly leaf one side of settling case box (51) through hinged joint.
6. The audio acquisition device for big data acquisition according to claim 1, wherein: the both sides and the equal fixedly connected with installation piece (61) in bottom of mounting bracket (6), and seted up a plurality of mounting holes (62) on installation piece (61).
7. The audio acquisition device for big data acquisition according to claim 1, wherein: the kneck that audio frequency transmission line (2) and audio input interface (11) are connected one end and the kneck of adapter connecting wire (4) all inwards form the concave area, audio frequency transmission line (2) and adapter connecting wire (4) are connected the kneck of one end and the inside of audio input interface (11) and all are formed with protruding connecting piece, and the concave area corresponds the adaptation respectively with protruding connecting piece.
8. The audio acquisition device for big data acquisition according to claim 1, further comprising: one end of the audio denoising module (7) is connected with the sound pick-up (3) through the sound pick-up connecting wire (4), and the other end of the audio denoising module is connected with the audio input interface (11) and is used for removing dryness of a target audio signal collected by the sound pick-up (3);
the audio denoising module (7) comprises:
a first acquisition unit (71) for acquiring the target audio signal;
a separation unit (72), connected to the first obtaining unit (71), for separating the target audio signal into a first target audio signal and a second target audio signal, where the first target audio signal is a target audio signal without a noise signal, and the second target audio signal is a target audio signal including a noise signal;
the processing unit (73) is connected with the separation unit (72) and is used for performing enhancement processing on the second target audio signal to obtain a third target audio signal, and the third target audio signal is obtained after enhancement processing is performed on the second target audio signal;
the dividing unit (74) is connected with the processing unit (73) and is used for dividing the third target audio signal into a plurality of first frequency bands which are sequentially arranged according to a preset rule and dividing the first target audio signal into a plurality of second frequency bands which are sequentially arranged according to the preset rule;
a comparing unit (75), connected to the dividing unit (74), for comparing the plurality of first frequency bands with the plurality of second frequency bands, counting third frequency bands except for a first frequency band which is the same as the second frequency band in the first frequency band, and counting the plurality of third frequency bands;
a generating unit (76) connected to the comparing unit (75) for generating a noise signal according to the plurality of third frequency bands;
a denoising unit (77), one end of which is connected with the processing unit (73), and the other end of which is connected with the generating unit (76), for removing a third target audio signal which is the same as the noise signal from the third target audio signal according to the noise signal to obtain a fourth target audio signal;
a synthesizing unit (78), which is connected to the separating unit (72) and the denoising unit (77) at the same time, for synthesizing the first target audio signal and the fourth target signal to synthesize a final noiseless audio signal;
a transmission unit (79) connected to the synthesis unit (78) for transmitting the noiseless audio signal to the audio input interface (11).
9. The audio acquisition device for big data acquisition according to claim 2, further comprising: an identity authentication module (8), one end of which is connected with the audio output interface (12), and the other end of which is in communication connection with the user terminal and is used for authenticating the identity information of the user terminal;
the identity verification module (8) comprising:
a communication unit (81) for realizing communication connection with the user terminal;
the second acquisition unit (82) is connected with the communication unit (81) and used for acquiring the current fingerprint information of the current user of the user terminal;
the analyzing unit (83) is connected with the second acquiring unit (82) and is used for analyzing the current fingerprint information and analyzing the current fingerprint texture characteristics and fingerprint lines;
the calculating unit (84) is connected with the analyzing unit (83) and used for calculating the similarity between the current fingerprint information and preset fingerprint information according to the current fingerprint texture features and the fingerprint lines:
Figure FDA0002667781610000041
wherein Q represents the similarity, x, of the current fingerprint information and the preset fingerprint information1Expressed as said current fingerprint texture feature, x2A predetermined fingerprint texture feature, θ, expressed as said predetermined fingerprint information1The weight value of the fingerprint texture feature comparison result is 0.3, N is the number of fingerprint lines, and SiLine end minutiae expressed as ith fingerprint lineQuantity, M, is expressed as the number of fingerprint lines in the preset fingerprint information, GjLine end detail quality, theta, expressed as jth fingerprint line in preset fingerprint information2Expressed as the weight value occupied by the fingerprint line end detail quality comparison result, the value is 0.3, TiLine features, K, expressed as the ith fingerprint line in the current fingerprint informationjLine feature, theta, expressed as jth fingerprint line in the preset fingerprint information3The weight value of the line characteristic comparison result is 0.4;
comparing the similarity between the current fingerprint information and preset fingerprint information with a preset threshold value to obtain a comparison result:
Figure FDA0002667781610000042
wherein Q is1Expressed as the preset threshold value, and L is expressed as the comparison result;
when the comparison result is that the current fingerprint information cannot pass the verification, a reminding instruction is generated, and when the comparison result is that the current fingerprint information passes the verification, a connection instruction is generated;
the reminding unit (85) is connected with the calculating unit (84) and is used for sending a reminding that the identity authentication cannot pass and the audio data cannot be acquired to the user terminal according to the reminding instruction;
and the connection unit (86) is connected with the calculation unit (84) and is used for connecting the audio output interface (12) with the user terminal according to the connection instruction.
CN202010924291.9A 2020-09-04 2020-09-04 Audio acquisition device for big data acquisition Withdrawn CN112019977A (en)

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