CN109151182A - A kind of ambient sound remote gathering system and method based on smart phone - Google Patents
A kind of ambient sound remote gathering system and method based on smart phone Download PDFInfo
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- CN109151182A CN109151182A CN201810851622.3A CN201810851622A CN109151182A CN 109151182 A CN109151182 A CN 109151182A CN 201810851622 A CN201810851622 A CN 201810851622A CN 109151182 A CN109151182 A CN 109151182A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
- H04M1/72433—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for voice messaging, e.g. dictaphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72451—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to schedules, e.g. using calendar applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
Abstract
The invention discloses a kind of ambient sound remote gathering system and method based on smart phone, the microphone sensor carried by smart phone, acquisition of the realization to ambient sound.Smart phone realizes the communication between remote server by configuring connection IP and port；By the mute detection of voice signal, unnecessary signal is filtered；Whenever having detected sound, just voice signal is preserved, and is packaged and uploads onto the server together with the location information of smart phone at this time；Server receives smartphone data upload request, starts the reception and analysis that carry out data packet, and the characteristic information extracted is saved in local data base；Mobile phone end initiates data retrieval request to server, and server extracts data and returns；Smart phone receives data, carries out the analysis of data packet, realizes the displaying of Noise map；By borrowing huge smart phone user group, the manpower and material resources for building entire service system, feedback even more best to user can be reduced.
Description
Technical field
The present invention relates to ambient sound remote collection technical field, specifically a kind of ambient sound based on smart phone is remotely adopted
Collecting system and method.
Background technique
With the continuous development of mobile terminal technology, the function of smart phone is stronger and stronger, and for example recording, video are logical
Words, mobile payment etc., favor of these abundant and powerful functions by people；While bringing convenient,
It is allowed to have an extensive and huge user group, and acquisition of the huge user group of these radixes just for urban environment sound provides
It may.The quality that present people require life is also higher and higher, especially very pays close attention to ambient noise, to ambient sound
The Noise map for acquiring and generating after background process, can be used as to a parameter in ambient enviroment quality discrimination, for people
Refer to.With the appearance of Chinese " day net ", the monitoring based on video for accident reduction, is chased plus technologies such as recognitions of face
The events such as murderer provide some foundations, but are based only on the monitoring of video, it is clear that have its defect, can for example examine
Measure pedestrian clash but often liquidate happen suddenly raw reason it is unknown so, and if on the basis of video monitoring add sound
The auxiliary of sound, effect often bring out the best in each other.
Summary of the invention
The technical problem to be solved in the present invention is that provide a kind of ambient sound remote gathering system based on smart phone and
Method, it is intended to solve the problems, such as the remote collection of ambient sound.
The technical proposal for solving the technical problem of the invention is as follows:
A kind of ambient sound remote gathering system based on smart phone of the present invention, comprising: carry out the intelligence of ambient sound remote collection
Mobile phone terminal and the server end that audio data is received and is handled；Wherein, mobile phone end includes operational order module, record
Sound module, memory module, mute detection module, communication module and display module, the server end include communication module, number
According to library module and voice recognition and characteristic extracting module；The mobile phone end and server end are passed through by being wirelessly connected
The included microphone sensor of smart phone, realizes the acquisition to ambient sound.
The operational order module of the mobile phone end for receiving user operation instruction, and executes corresponding
Functional unit；The operational order module includes:
Server parameter configuration unit, for configuring IP address and the port of connected server；
Record type selecting unit, for selecting record type, including timing recording mode and two kinds of manual record type；
Recording starts and stop unit, records for starting and stopping；
The recording module of mobile phone end, for successfully creating when smart phone receives for saving the anti-of audio data file
It when feedback, records, and recording data is stored in recording file；The recording module includes:
Recording file creating unit, for creating the corresponding recording text for saving recording data according to the record command
Part, and the result created to current smart phone feedback recording file；
Recoding unit, for recording when receiving the feedback recording file and creating successfully；
The memory module of mobile phone end, for receiving recording data and being stored in recording file；
The mute detection module of mobile phone end, for whether detecting audio data that the smart phone recording module is got
Include acoustic information, and feeds back the result of the mute detection to current smart phone；
The communication module of mobile phone end realizes the transmission of data for communicating between mobile phone end and server end；It is described
Smart phone communication module includes:
Audio data uploading unit, for uploading audio file to server end；
Data transmission unit, for initiating request of data to server end, solicited message includes IP address and the end of smart phone
Message breath, and receive the data packet from server end；
The display module of mobile phone end, the Noise map real-time exhibition for ambient sound.
The communication module of the server end realizes the biography of data for communicating between mobile phone end and server end
It is defeated；The communication module includes:
Audio file receiving unit, the audio file sended over for receiving mobile phone end, and save local；
Data transmission unit, for obtaining in mobile phone end request data after receiving the request of data of mobile phone end
The IP address and port information about mobile phone end in face, database information needed for connection local data base obtains simultaneously are transferred to
Mobile phone end；
The voice recognition and characteristic extracting module of server end, for carrying out Classification and Identification to sound type and extracting sound point
The characteristic information of shellfish size etc., and the characteristic information extracted is saved in local data base；
The database module of server end carries out the additions and deletions of information for connecting local data base, operation local data base
Change and looks into.
A kind of ambient sound remote collection method based on smart phone of the present invention, comprising the following steps:
A, the server Connecting quantity configuration operational order that smart phone receives user carries out parameter configuration, and server just
Really open in the case where to server send connection request, for test link whether access, it is ensured that the server ip configured
Address is correct with port；
B, server often receives a connection request and just sets up another a thread, for carrying out the reception of audio data, and feeds back
Link circuit identifier position notifies smart phone connecting link access, executes step C；If smart phone is within a limited period of time
The marker from server is not received, i.e., overtime, then it is obstructed to be considered as link, repeats A in the case of this；
C, smart phone sets up another a thread, sends data request information to server for timing, and receive and come from server
The data packet at end, and the data received are used for the presentation of Noise map；Smart phone carries out recorded audio format parameter
Configuration, and select the mode of recording；The corresponding recording file for being used to save recording data is created according to record command, and is fed back
Whether recording file creates success；
D, when receiving the feedback recording file and create successfully, smart phone record and real-time in waveform diagram display module
Display recording waveform；Whether real-time monitoring recording stops after recording starts, if so, stopping recording；If it is not, will then be acquired
To audio data be saved in above-mentioned created recording file, and mute detection carried out to the recording data, and to intelligence
Mobile phone feeds back whether the recorded audio signals detect acoustic information；
E, when receiving the feedback recorded audio signals comprising acoustic information, within a period of time since current time backward
Recording data extract, and be packaged with current location information and be uploaded to background server；If above-mentioned fed back mute
Testing result is mute state, then repeats D；
F, background server saves local after reception of the data packet, and feature information extraction is then carried out to it and saves local
Database；Background server connects database after receiving the data retrieval request from smart phone, extracts data simultaneously
Packing is transferred to smart phone, completes ambient sound remote collection.
The remote collection method of the ambient sound based on smart phone, wherein step C is specifically included:
C1, data requesting instructions then are sent to server at regular intervals；
C2, the data packet from server end is received, and the data received is used for the presentation of Noise map；
C3, audio format, sample rate, the coding mode of configuration recording etc.；
C4, the selected mode recorded, including timing and manual two kinds；Timing mode needs first to set timing length, to the time
It is automatically stopped later；Manual mode needs to be manually operated when needing to stop recording；
It includes the record command that C5, smart phone, which receive, starts to create the file for saving recording data, and feed back wound
The state built.
The invention discloses a kind of ambient sound remote gathering system and method based on smart phone, the huge intelligence of borrow
Mobile phone user group, the microphone sensor carried by smart phone realize the acquisition to ambient sound.Smart phone, which passes through, to be configured
IP and port are connected, realizes the communication between remote server；It is flexibly more using manual and two kinds of record types of timing
Become, adapts to complex environment；By the mute detection of voice signal, unnecessary signal is filtered, reduce memory space and alleviates number
According to the pressure of transmission；Whenever having detected sound, just the voice signal in a period of time backward since current time is protected
It leaves and, and be packaged and upload onto the server together with the location information of smart phone at this time；Server receives smart phone number
According to upload request, start the reception and analysis that carry out data packet, and the characteristic information extracted is saved in local data base；Intelligence
Energy mobile phone terminal initiates data retrieval request to server, and server connection data storehouse is extracted data and simultaneously returned；Smart phone receives
To the data from server, the analysis of data packet is carried out, and realizes the displaying of Noise map；By borrowing huge intelligent hand
Machine user group can reduce the manpower and material resources for building entire service system, the collection analysis and Noise map to entire ambient sound
It shows, feedback even more best to user.
The present invention has the advantage that
1) present invention is reduced using readily available anchor point to entire server by means of huge smart phone user group
The manpower and material resources of system building；
2) present invention first tested before recording starts link whether access, it is ensured that need to upload if any data in Recording Process
When, smart phone is able to access that server；
3) it is data source that the present invention is collected using microphone, provides a recording waveform real-time exhibition interface for user, is
User carries out some simple judgements and provides foundation, such as judges whether recording is normally carried out, rough estimate sound size；
4) present invention employs manual and two kinds of record types of timing, adapt to the habit requirement of different user, flexible and changeable；
5) present invention uses mute detection algorithm on smart phone, only the just meeting when smart phone discovery has voice signal
The function of activating audio data upload server filters out unnecessary signal, reduces memory space and alleviates data transmission
Pressure；
6) present invention uses dual port data Receiving on the server, by audio data upwards transmission port and data request port
It separates, avoids request of data obstructing problem caused by uploading because of a large amount of audio datas.
Detailed description of the invention
Fig. 1 is that the present invention is based on the ambient sound remote gathering system schematic diagrames of smart phone；
Fig. 2 is that the present invention is based on the ambient sound remote gathering system schematic diagrams of smart phone；
Fig. 3 is the work flow diagram of system of embodiment of the present invention smart phone；
Fig. 4 is system background of embodiment of the present invention server work flow diagram.
Specific embodiment
Below with reference to embodiment and attached drawing, further description of the technical solution of the present invention, but is not to the present invention
Restriction.
Embodiment
A kind of ambient sound remote gathering system based on smart phone, is made of smart phone and background server.
As shown in Figure 1, the ambient sound remote gathering system based on smart phone includes smart phone, relay station and clothes
Business device three parts.Smart phone shows that relay station is used for the transfer of data, and server is then used to count for data acquisition with effect
According to reception, processing etc.；Wherein, relay station is divided into line relay station and radio repeater station again, and line relay station owner will include
Interchanger, radio repeater station are divided into base station and routing again, and base station provides data service on net for smart phone, and routing is then intelligence
Mobile phone provides WIFI service on net.
As shown in Fig. 2, ambient sound remote gathering system principle, mobile phone end include operational order module, recording module,
Memory module, mute detection module, communication module and display module；
The server end includes communication module, database module and voice recognition and characteristic extracting module.
It is as follows in the effect of mobile phone end, each module:
Operational order module for receiving user operation instruction, and executes corresponding functional unit；The operational order
Module includes:
Server parameter configuration unit, for configuring IP address and the port of connected server；
Record type selecting unit, for selecting record type, including timing recording mode and two kinds of manual record type；
Recording starts and stop unit, records for starting and stopping；
Recording module, for being recorded when smart phone receives and successfully creates the feedback for saving audio data file
Sound, and recording data is stored in recording file (front does not refer to recording file, have here described lack reference basis)；Institute
Stating recording module includes:
Recording file creating unit, for creating the corresponding recording text for saving recording data according to the record command
Part, and the result that the recording file creates is fed back to current smart phone；
Recoding unit, for recording when receiving the feedback recording file and creating successfully；
Memory module, for receiving recording data and being stored in recording file；
Whether mute detection module includes sound letter for detecting the audio data that the smart phone recording module is got
It ceases, and feeds back the result of the mute detection to current smart phone；
Mobile phone end communication module realizes the transmission of data for communicating between mobile phone end and server end；The intelligence
Can mobile phone communication module include:
Audio data uploading unit, for uploading audio file to server end；
Data transmission unit, for server end initiate request of data, solicited message include mobile phone end IP address with
Port information, and receive the data packet from server end；
The display module of mobile phone end, the Noise map real-time exhibition for ambient sound.
It is as follows in the effect of server end, each module:
Server end communication module realizes the transmission of data for communicating between mobile phone end and server end；The communication
Module includes:
Audio file receiving unit, the audio file sended over for receiving mobile phone end, and save local；
Data transmission unit, for obtaining in mobile phone end request data after receiving the request of data of mobile phone end
The IP address and port information about mobile phone end in face, database information needed for connection local data base obtains simultaneously are transferred to
Mobile phone end；
Voice recognition and characteristic extracting module, for carrying out Classification and Identification and extraction sound decibel size etc. to sound type
Characteristic information, and the characteristic information extracted is saved in local data base；
Database module, for connecting local data base, operation local data base changes to carry out the additions and deletions of information and looks into.
As shown in figure 3, smart phone executes following workflow:
Step 1, it initializes: the authority application needed for carrying out first when operation, comprising: recording permission, file read-write permission, outside
Storage write-in permission and network access authority etc.；If whole permissions described above are all permitted, 2 are thened follow the steps, it is no
Then exit；
Step 2, the configuration of the IP address and transmission port of connected server is carried out, line link of going forward side by side test is guaranteeing to take
Business device is correctly opened and under conditions of smart phone normal cluster, and whether detection link passes through；If access, 3 are thened follow the steps, it is no
Then repeat step 2；
Step 3, the parameters such as the configuration of recording parameter, including sound channel mode, coding mode, quantization digit, minimal buffering area are carried out
Configuration, after parameter configuration finishes, carry out according to user instructions selection recording mode, be divided into manually and timing two kinds；
It needs user to start to record manually manually and stops recording manually；Timing mode can then preset long recording time, wait record out
After beginning, the arrival of timing is waited then can to execute stopping recording operation automatically；It is pressed in beginning record button formal
Before starting recording, it is also necessary to create the audio file for saving audio data, save file receiving to successfully create
It could start formal recording after feedback；After recording starts, data are read out of buffer area constantly and audio is written
File is saved, and the waveform recorded can also be shown in waveform display module, facilitate user to be carried out according to waveform some simple
Judgement, such as record and whether be normally carried out, recording waveform can carry out stopping displaying or after extension by touching recording module
Show；
Step 4, while step 2 is finished, a thread is created, for sending request of data and receiving from server
The data at end；Thread meeting timing will initiate request of data to server end at regular intervals, while can ceaselessly examine
Whether have data from server end, if so, then receive and parse data to data packet, then will count if surveying
According to the presentation for Noise map；
Step 5, smart phone can not stop whether detection currently stops recording, if so, End of Tape；If it is not, then will be from buffering
The audio data that area extracts is transported to mute detection module, carries out the detection of voice signal, if testing result be it is mute, weigh
Multiple step 5；If testing result be have voice signal, by the audio data within a period of time backward from current time together with
The location information of current smart phone is packaged end of uploading onto the server together；
Referring to fig. 4, server end executes following workflow:
Step 1, it initializes, carries out the initialization, including frame size, interface layout, interface display etc. of UI component；UI is initial
Start the parameter configuration of progress server, the mainly configuration of Service-Port after changing；Simultaneously by the IP address of server end
It is printed with port, the configuration for carrying out IP address and port for mobile phone end provides reference；
Step 2, start server, there are two parallel thread A for server with B, and thread A is for handling the machine audio number of intelligent hand
It is connected according to uploading, B is then used to respond smartphone data request connection；It uploads and connects if it is audio data, then follow the steps
3, it is connected if it is request of data, thens follow the steps 6；
Step 3, thread A just enters block type standby mode after server starting, connects whenever there is an audio data to upload
When request, obtains the object and a newly-built thread is used for the processing of the object, reenter block type later and wait until down
The arrival of one request；
Step 4, in order to which the anti-interference ability for enhancing server requires first to carry out body in the smart phone that each connection is come in
The confirmation of part just can be carried out the transmission of data, i.e., the smart phone that each connection is come in will upload identification information to server,
And server is here then responsible for confirming the identification information, if without the identity information in identification information or identification information
Mistake is then considered as illegal access, and server can actively close the transmission channel, it is ensured that the safety of server；If in identification information
Identity information successful match, thens follow the steps 5；The identification information is defined by smart phone and server joint consultation, can basis
Demand self-defining；
Step 5, after identity information successful match, then the reception of recording file is carried out, and is saved in local, file reception finishes
This end of transmission later；And audio file will be transferred by sound characteristic information extraction modules, carry out the characteristic information of next step
Special extract；
Step 6, thread B also enters block type standby mode after server starting, whenever having a request of data connection, obtains
It takes the object and obtains corresponding data stream, parse the IP and open port of mobile phone end inside the data flow, and from local
Database extract characteristic information data be transmitted to the corresponding port the IP, reenter later block type wait until it is next
The arrival of request.
Claims (5)
1. a kind of ambient sound remote gathering system based on smart phone, it is characterised in that: including carrying out ambient sound remote collection
Mobile phone end and audio data is received and is handled server end；
The mobile phone end include operational order module, recording module, memory module, mute detection module, communication module with
And display module；
The server end includes communication module, database module and voice recognition and characteristic extracting module；
By being wirelessly connected, the microphone sensor carried by smart phone is realized for the mobile phone end and server end
Acquisition to ambient sound.
2. the ambient sound remote gathering system according to claim 1 based on smart phone, it is characterised in that: the intelligence
The operational order module of mobile phone terminal for receiving user operation instruction, and executes corresponding functional unit；Operational order
Module includes:
Server parameter configuration unit, for configuring IP address and the port of connected server；
Record type selecting unit, for selecting record type, including timing recording mode and two kinds of manual record type；
Recording starts and stop unit, records for starting and stopping；
The recording module of mobile phone end, for successfully creating when smart phone receives for saving the anti-of audio data file
It when feedback, records, and recording data is stored in recording file；Recording module includes:
Recording file creating unit, for creating the corresponding recording text for saving recording data according to the record command
Part, and the result that the recording file creates is fed back to current smart phone；
Recoding unit, for recording when receiving the feedback recording file and creating successfully；
The memory module of mobile phone end, for receiving recording data and being stored in recording file；
The mute detection module of mobile phone end, for detect audio data that smart phone recording module is got whether include
There is acoustic information, and feeds back the result of mute detection to current smart phone；
The communication module of the mobile phone end realizes the transmission of data for communicating between mobile phone end and server end；
Transmission module includes:
Audio data uploading unit, for uploading audio file to server end；
Data transmission unit, for initiating request of data to server end, solicited message includes IP address and the end of smart phone
Message breath, and receive the data packet from server end；
The display module of mobile phone end, the Noise map real-time exhibition for ambient sound.
3. the ambient sound remote gathering system according to claim 1 based on smart phone, it is characterised in that: the service
The communication module at device end realizes the transmission of data for communicating between mobile phone end and server end；Communication module includes:
Audio file receiving unit, the audio file sended over for receiving mobile phone end, and save local；
Data transmission unit, for obtaining in mobile phone end request data after receiving the request of data of mobile phone end
The IP address and port information about mobile phone end in face, database information needed for connection local data base obtains simultaneously are transferred to
Mobile phone end；
The voice recognition and characteristic extracting module of server end, for carrying out Classification and Identification to sound type and extracting sound point
The characteristic information of shellfish size, and the characteristic information extracted is saved in local data base；
The database module of server end carries out the additions and deletions of information for connecting local data base, operation local data base
Change and looks into.
4. the ambient sound remote gathering system according to claim 1-3 based on smart phone carries out ambient sound
Acquisition method, which comprises the following steps:
A, the server Connecting quantity configuration operational order that smart phone receives user carries out parameter configuration, and server just
Really open in the case where to server send connection request, for test link whether access, it is ensured that the server ip configured
Address is correct with port；
B, server often receives a connection request and just sets up another a thread, for carrying out the reception of audio data, and feeds back
Link circuit identifier position notifies smart phone connecting link access, executes step C；If smart phone is within a limited period of time
The marker from server is not received, i.e., overtime, then it is obstructed to be considered as link, repeats A in the case of this；
C, smart phone sets up another a thread, sends data request information to server for timing, and receive and come from server
The data packet at end, and the data received are used for the presentation of Noise map；Smart phone carries out recorded audio format parameter
Configuration, and select the mode of recording；The corresponding recording file for being used to save recording data is created according to record command, and is fed back
Whether recording file creates success；
D, when receiving the feedback recording file and create successfully, smart phone record and real-time in waveform diagram display module
Display recording waveform；Whether real-time monitoring recording stops after recording starts, if so, stopping recording；If it is not, will then be acquired
To audio data be saved in above-mentioned created recording file, and mute detection carried out to the recording data, and to intelligence
Mobile phone feeds back whether the recorded audio signals detect acoustic information；
E, when receiving the feedback recorded audio signals comprising acoustic information, within a period of time backward since current time
Recording data extracts, and is packaged with current location information and is uploaded to background server；If above-mentioned fed back mute inspection
Survey result is mute state, then repeats D；
F, background server saves local after reception of the data packet, and feature information extraction is then carried out to it and saves local
Database；Background server connects database after receiving the data retrieval request from smart phone, extracts data simultaneously
Packing is transferred to smart phone, completes ambient sound remote collection.
5. the ambient sound remote gathering system according to claim 4 based on smart phone is to the ambient sound side of being acquired
Method, which is characterized in that the step C is specifically included:
C1, data requesting instructions then are sent to server at regular intervals；
C2, the data packet from server end is received, and the data received is used for the presentation of Noise map；
C3, the audio format of configuration recording, sample rate, coding mode；
C4, the selected mode recorded, including timing and manual two kinds；Timing mode needs first to set timing length, to the time
It is automatically stopped later；Manual mode needs to be manually operated when needing to stop recording；
It includes the record command that C5, smart phone, which receive, starts to create the file for saving recording data, and feed back wound
The state built.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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