CN110581878B - Voice data transmission method, device and storage medium - Google Patents

Voice data transmission method, device and storage medium Download PDF

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Publication number
CN110581878B
CN110581878B CN201810597834.3A CN201810597834A CN110581878B CN 110581878 B CN110581878 B CN 110581878B CN 201810597834 A CN201810597834 A CN 201810597834A CN 110581878 B CN110581878 B CN 110581878B
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voice data
voice
equipment
data card
host
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CN110581878A (en
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马伟伟
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ZTE Corp
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ZTE Corp
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • 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
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • G06F2009/45575—Starting, stopping, suspending or resuming virtual machine instances

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a voice data transmission method, a device and a storage medium, wherein the method comprises the following steps: establishing connection between a virtual drive in host equipment and data card equipment at a preset port; the data card equipment can monitor the virtual drive through a remote network drive interface specification or a wireless network; receiving a voice data packet which is sent by the data card equipment and is subjected to pulse code modulation; and outputting the audio information corresponding to the voice data packet.

Description

Voice data transmission method, device and storage medium
Technical Field
The embodiment of the invention relates to a voice transmission technology, in particular to but not limited to a voice data transmission method, voice data transmission equipment and a storage medium.
Background
The conventional data card with a multi-port configuration can provide Voice over Universal Serial Bus (Vousb) service, but the Vousb service requires a User to install various port drivers and a complex User Interface (UI), and is gradually replaced by a lightweight World Wide Web UI (webUI) configuration data card or uFi-type data card product.
Although webUI form data cards or uFi-class data card products have the advantages of better user experience, faster control method, etc., webUI form data cards and uFi-class data card products cannot provide the Vousb service.
Disclosure of Invention
Embodiments of the present invention provide a voice data transmission method, device, and storage medium, which can implement a Vousb service in a webUI form data card or an uFi-class data card with a simple structure.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides a voice data transmission method, which comprises the following steps:
establishing connection between a virtual drive in host equipment and data card equipment at a preset port; the data card device can monitor the virtual Driver through Remote Network Driver Interface Specification (RNDIS) or Wireless Fidelity (WiFi);
receiving a Pulse Code Modulation (PCM) voice data packet sent by the data card equipment;
and outputting the audio information corresponding to the voice data packet.
The embodiment of the invention provides a voice data transmission method, which comprises the following steps:
receiving a connection request sent by a host device through a preset port, and establishing connection with a virtual drive of the host device;
receiving a voice data packet transmitted through an air interface protocol;
and sending the voice data packet to the virtual driver.
An embodiment of the present invention provides a voice data transmission device, where the device at least includes: a processor and a storage medium configured to store executable instructions, wherein:
the processor is configured to execute stored executable instructions configured to perform the voice data transmission method described above; alternatively, the executable instructions are configured to perform the voice data transmission method described above.
An embodiment of the present invention provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and the computer-executable instructions are configured to execute the above-mentioned voice data transmission method; alternatively, the executable instructions are configured to perform the voice data transmission method described above.
The embodiment of the invention provides a voice data transmission method, voice data transmission equipment and a storage medium, wherein a virtual drive in host equipment is connected with data card equipment at a preset port; the data card equipment can monitor the virtual drive through a remote network drive interface specification or wireless fidelity; receiving a voice data packet which is sent by the data card equipment and passes through PCM; outputting audio information corresponding to the voice data packet; therefore, the virtual drive is installed in the host equipment, so that the virtual drive is connected with the data card equipment, and the voice data transmitted by the data card equipment is output, thereby realizing the Vousb service in the webUI form data card or uFi type data card with simple structure.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different examples of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.
FIG. 1 is a system architecture diagram of a webUI-like data card apparatus according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a connection between a host device and a data card device according to an embodiment of the present invention;
fig. 3 is a system structure diagram of a host device side for implementing a voice data transmission method according to an embodiment of the present invention;
FIG. 4 is a diagram of a system structure on the device side of a data card for implementing a voice data transmission method according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for implementing voice data transmission according to an embodiment of the present invention;
FIG. 6 is an interaction diagram of a method for implementing voice data transmission according to an embodiment of the present invention;
FIG. 7 is a schematic flowchart of a method for implementing voice data transmission on the device side of a data card based on an embedded Linux operating system according to an embodiment of the present invention;
FIG. 8 is a flowchart illustrating a method for implementing voice data transmission on the host device side based on the Windows operating system according to an embodiment of the present invention;
FIG. 9 is a schematic flowchart of a method for implementing voice data transmission on the host device side based on an embedded Linux operating system according to an embodiment of the present invention;
fig. 10 is a flowchart of voice concurrency control based on a WiFi network according to an embodiment of the present invention;
FIG. 11 is a diagram illustrating a structure for controlling voice quality according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a voice data transmission host device according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a voice data transmission data card device according to an embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
In the following description, a mobile device will be exemplified, and it will be understood by those skilled in the art that the configuration according to the embodiment of the present invention can be applied to a fixed type device, in addition to elements particularly used for moving purposes.
Generally, a USB-based wireless data module or data card-type device may provide a Vousb service, which is referred to as a short. The Vousb principle is that after a USB device is inserted into a host device based on a Windows operating system or a host device based on a Linux operating system, a USB composite device with multiple interfaces is enumerated by the USB device, where the USB composite device with multiple interfaces generally includes a fault self-checking port (diagnoses) for providing diagnostic information, an AT port for providing a planned task command line (Attention), a Modem (Modem) or Network Driver Interface Specification (NDIS) port for providing data services, and a Vousb port for providing voice services. The UI software on the host equipment system reads voice data on the host equipment through the Vousb port and forwards the voice data to the playing equipment on the host equipment to play voice; in addition, the UI software on the host device reads the voice data input by the sound recording device on the host device and transmits the voice data to other remote devices by writing the voice data into the Vousb port.
With the development of technology, two device forms with better user experience appear in wireless data module or data card type devices: one is a drive-free data card type device based on USB, which only reports port forms supported by an operating system (for example, RNDIS of a Windows platform, an Ethernet Control Model (cdc-ECM) of a Linux platform), and uses a lightweight webUI Control method; the other type is a uFi type data card device with a battery, the device can provide WiFi connection service, and a user can directly connect the host device through WiFi, and a lightweight webUI control method is also adopted.
In a method for transmitting voice data provided by an embodiment of the present invention, a virtual driver is installed on a host device, a kernel network socket (socket) programming interface is used at a bottom layer of the virtual driver to connect to the device through a network, and the virtual driver registers a Vousb device (i.e., a data card device capable of implementing a Vousb service) interface with an operating system of the host device; a Voice service program (Voice Server) is operated in the data card equipment, and the Voice service program is responsible for forwarding Voice data; thus, the embodiment of the present invention provides a voice data transmission method, which can provide a Vousb service in a webUI type data card or uFi type devices, thereby adding a function very useful for a client to the data card device and improving product competitiveness.
Fig. 1 is a system architecture diagram of a webUI data card device according to an embodiment of the present invention, as shown in fig. 1, when the webUI data card device is used for voice data transmission, a client 100 of the webUI data card device inputs voice data through a File Transfer Protocol (FTP) in an application layer 102; the browser 101 sends voice data through a hypertext Transfer Protocol (HTTP) in the application layer 102;
the application layer 102 transmits the voice data to the transport layer 103, where the voice data complies with a Transmission Control Protocol (TCP) and a User Datagram Protocol (UDP) in the transport layer 103;
the transport layer 103 transfers voice data to the network layer 104, and the transport of voice data in the network layer 104 follows an Internet Protocol (IP);
the network layer 104 transfers voice data to the physical layer 105, and in the physical layer 105, the webUI-type data card device provides web service, process control, and the like to the host device based on the RNDIS network interface, the ECM network interface, or the WiFi network interface.
As can be seen from fig. 1, the webUI-type data card device and the host device only have network interfaces (i.e., RNDIS network interface, ECM network interface, or WiFi network interface), so that only network packets can be transmitted based on network protocols.
The webUI type data card equipment has the advantages that:
firstly, the UI of the webUI type data card equipment is a webUI based on a browser, and UI software does not need to be installed;
secondly, the webUI data card equipment can be driven by RNDIS or ECM of the system, so that various system compatibility problems caused by manufacturer driving are avoided, and a large amount of maintenance cost is reduced for manufacturers.
But one of the most important drawbacks in webUI-like data card devices is: the webUI-type data card device cannot provide the functionality of the Vousb service of the conventional product.
To solve the problem that the webUI-type data card device cannot provide the function of the conventional Vousb service, an embodiment of the present invention provides a voice data transmission method, and fig. 2 is a connection structure diagram of a host device and a data card device according to an embodiment of the present invention, as shown in fig. 2, the host device 210 side of the connection structure of the host device and the data card device includes four modules: a microphone collection module 211, a data compression module 212, a data decompression module 213 and a voice playing module 214; the data card device 220 side includes four modules: a data decompression module 221, a module 222 for transmitting voice data to other devices, a module 223 for receiving voice data sent by other devices, and a data compression module 224. Wherein, each module function is as follows:
the microphone collecting module 211 is configured to transmit a collected voice signal input by a user to a sound card of the host device 210 by using a microphone, and at this time, software of the host device collects digitized sampling and encoding voice data through an Application Programming Interface (API) in an operating system (Windows or Linux), and sends the collected voice data to a Vousb port corresponding to the data card device 220.
The data compression module 212 compresses the Voice data collected by the microphone to obtain a compressed Voice data packet, encapsulates the compressed Voice data packet into a socket, and sends the socket to a Voice Server located in the data card device through the RNDIS or WiFi network.
The data decompression module 221 receives the socket, in which the voice data packet is encapsulated, sent by the host device 210 through the data compression module 212, extracts the voice data packet from the socket, and parses the voice data packet.
The voice data is transmitted to the other device module 222 for sending the parsed voice data packets to the other device (i.e., other host device) via an air interface protocol.
And a voice data receiving module 223, which is used for receiving the voice data transmitted by the other device from the air interface.
And the data compression module 224 is configured to compress the voice data transmitted by the other device, encapsulate the voice data packet into a socket, and call the socket interface to send the packet to the virtual driver of the host device through the network.
The data decompression module 213 is configured to extract a voice data packet from a socket in which voice data transmitted by another device is encapsulated, decompress the voice data packet, and send the decompressed voice data to the voice playing module 214 of the host device 201.
And the voice playing module 214 is configured to play voice information corresponding to the voice data transmitted by the other device.
Fig. 3 is a system structure diagram of a host device side for implementing a voice data transmission method according to an embodiment of the present invention, where a virtual driver is designed in the host device in fig. 3, and the virtual driver functions as:
(1) a Vousb type device (namely, a data card device with Vousb function) is registered in an operating system of a host device, and a uniform operating interface is provided for Vousb services (namely, services corresponding to the data card device) in a User Interface (UI) of the host device.
(2) The socket interface of the operating system based on the host device communicates with the data card device, and the physical interface can be a USB-based RNDIS or ECM network or a wireless WiFi network.
(3) And sending the voice data collected by the microphone to the data card equipment through the socket interface.
(4) And reading the voice data packet transmitted by the data card equipment through the socket interface, and transmitting the voice data packet to the voice playing equipment of the host equipment, so that the voice playing equipment of the host equipment is utilized to play the audio information corresponding to the voice data packet.
As shown in fig. 3, in the process of implementing voice data transmission, the operations performed by the host device side include the following two processes:
in a first process, the host device sends data collected by its microphone to other devices, and the process is as follows:
(1) a user calls a microphone through a user interface 301 of the host device, the microphone 302 collects voice data of the user, and the user interface 301 uploads the voice data to a virtual driver 303 in the host device;
(2) the virtual driver 303 passes the received voice data through the transport layer 304, and transmits voice data packets in the transport layer 304 in compliance with the TCP protocol and the UDP protocol.
(3) The transport layer 304 passes the voice data to the network layer 305, and the transport of the voice data in the network layer 305 follows the IP protocol.
(4) The network layer 305 transfers the Voice data to the physical layer 306, and in the physical layer 306, the host device sends the socket, in which the Voice data packet is encapsulated, to the Voice Server of the data card device through the RNDIS network interface, the ECM network interface, or the WiFi network interface.
In the first process, namely the host device sends the data collected by the microphone of the host device to other devices, the host device firstly transmits the Voice data collected by the microphone of the host device to a Voice Server of the data card device through an RNDIS network interface, an ECM network interface or a WiFi network interface, and then the Voice Server sends the Voice data to other devices, so that the Voice communication of the two devices is realized. For example, the host device is a computer a, the other devices are computers B, the computer a sends voice data acquired by its own microphone to the data card device corresponding to the computer B through the data card device corresponding to the computer a, then the data card device corresponding to the computer B sends the voice data to the virtual driver of the computer B, and the virtual driver of the computer B transmits the voice data to the voice playing device of the computer B, so that audio information corresponding to the voice data sent by the computer a is played.
In the second process, the other devices send the voice data to the host device, and the host device plays the audio information corresponding to the voice data, and the process is as follows:
(1) in the physical layer 306, the host device receives, through the RNDIS network interface, the ECM network interface, or the WiFi network interface, a socket encapsulated with a Voice data packet sent by the Voice Server of the data card device (the Voice data packet is Voice data sent by other devices received by the Voice Server of the data card device).
(2) The physical layer 306 passes the voice data to the network layer 305, and the transport of the voice data in the network layer 305 follows the IP protocol.
(3) The network layer 305 passes the received voice data through the transport layer 304, and transmits the voice data packet in the transport layer 304 in compliance with the TCP protocol and the UDP protocol.
(4) The transport layer 304 uploads the voice data to the virtual driver 303 in the host device.
(5) The virtual drive 303 transmits the voice data to the playback device 307 of the host device.
(6) The playing device 307 plays the audio information corresponding to the voice data.
In the second process, that is, the other devices send the Voice data to the host device, and the host device plays the audio information corresponding to the Voice data, the virtual driver of the host device receives the Voice data transmitted by the Voice Server of the data card device through the RNDIS network interface, the ECM network interface or the WiFi network interface, and then the playing device of the host device plays the Voice data, so that the Voice communication between the two devices is realized. For example, the host device is a computer a, the other devices are computers B, the computer B transmits the Voice data to a Voice Server of the data card device corresponding to the computer a, and then the Voice Server transmits the Voice data to a virtual driver of the computer a, the virtual driver transmits the Voice data to a Voice playing device of the computer a, and the Voice playing device plays the audio information corresponding to the Voice data.
Fig. 4 is a system structure diagram of a data card device side for implementing a Voice data transmission method according to an embodiment of the present invention, where a Voice Server is designed in the data card device, and the Voice Server functions as:
(1) and realizing a socket service based on the RNDIS network interface, the ECM network interface or the WiFi network interface, and monitoring the socket client access corresponding to the virtual drive established by the virtual drive by the Voice Server.
Here, the monitoring of the socket client access corresponding to the virtual driver created by the virtual driver by the Voice Server may be understood as monitoring the connection between the virtual driver of the host device and the data card device by the Voice Server.
(2) The Voice Server acquires Voice data uploaded by other equipment through a cellular network, encapsulates the Voice data into a socket, and then sends the socket to the virtual-driven socket client through the socket interface.
(3) The Voice Server receives the Voice data packet transmitted from the virtual drive socket client, sends the Voice data packet to a wireless protocol stack, and finally transmits the Voice data packet to other equipment through a cellular network.
As shown in fig. 4, in the process of implementing voice data transmission, the operations performed by the data card device side include the following two processes:
in a first process, the data card device sends the received voice data collected by the microphone of the data card device and sent by the host device to other devices, and the process is as follows:
(1) the Voice Server 401 of the data card device receives the socket encapsulated with Voice data sent by the RNDIS network interface, the ECM network interface or the wifi network interface at the physical layer 404 of the virtual drive of the host device.
(2) The obtained socket encapsulated with voice data is passed to the network layer 403, and the voice data is transmitted in the network layer 403 in compliance with the IP protocol.
(3) The network layer 403 passes the socket encapsulated with voice data to the transport layer 402, and the transmission of voice data packets in the transport layer 402 follows the TCP protocol and the UDP protocol.
(4) The Voice Server 401 of the data card device sends the Voice data packet transmitted by the network layer 403 to the cellular network through the air interface protocol stack 405, and transmits the Voice data packet to other devices through the cellular network.
In the second process, the other devices send the Voice data to the Voice Server of the data card device, the Voice Server sends the Voice data to the virtual driver of the host device, and the host device plays the audio information corresponding to the Voice data, and the process is as follows:
(1) the Voice Server 401 transfers the acquired Voice data sent by the other device to the transport layer 402, and the transmission of the Voice data packet in the transport layer 402 complies with the TCP protocol and the UDP protocol.
(2) Transport layer 402 passes the voice data to network layer 403, where the transport of the voice data in network layer 403 conforms to the IP protocol.
(3) The network layer 403 transmits the Voice data to the physical layer 404, in the physical layer 404, the Voice Server sends the socket encapsulated with the Voice data packet to the virtual driver of the host device through the RNDIS network interface, the ECM network interface, or the WiFi network interface, the virtual driver sends the Voice data to the playing device of the host device, and the playing device plays the audio information corresponding to the Voice data.
Fig. 5 is a schematic flow chart of a method for implementing voice data transmission according to an embodiment of the present invention, as shown in fig. 5, the method includes the following steps:
step S501, establish a connection between a virtual driver in the host device and the data card device at a preset port.
Here, the data card device may listen to the virtual driver through an RNDIS network interface or a WiFi network interface. The preset port may be a port arbitrarily set by a user, for example, the preset port is a port with a port number of 9527. The operating system of the host device includes at least: windows operating system or Linux operating system. The data card device can be a webUI type data card or uFi type device; the host device may be implemented in various forms, for example, the host device may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and a fixed terminal such as a Digital TV, a desktop computer, and the like.
Step S502, receiving the PCM-passed voice data packet sent by the data card device.
Here, the virtual driver of the host device receives a Voice packet sent by the data card device and adjusted by the PCM, where the Voice packet may be sent to the cellular network by another device through an air interface protocol, and is transmitted to the Voice Server of the data card device through the cellular network; and then the Voice Server of the data card equipment encapsulates the received Voice data packet into a socket, calls a socket interface and sends the socket to the virtual drive of the host equipment through the RNDIS network interface, the ECM network interface or the WiFi network interface.
Step S503, outputting the audio information corresponding to the voice data packet.
Here, the virtual driver of the host device receives the socket encapsulated with the voice data packet, extracts the voice data packet from the socket, writes the voice data packet into a cache queue of the virtual driver for reading by a UI program corresponding to the virtual driver, and outputs audio information corresponding to the voice data packet through a playback device on the host device.
In the Voice data transmission method provided in this embodiment, the Voice Server of the data card device sends the received Voice data sent by the other device to the virtual driver of the host device, and then the virtual driver sends the Voice data to the playback device of the host device, and finally the playback device plays the audio information corresponding to the Voice data; thus, the embodiment realizes that the Vousb service is provided in the webUI type data card or uFi type equipment, a function which is very useful for a client is added for the equipment, the product competitiveness is improved, a voice function part in a computer user interface of a traditional multi-port form product can be multiplexed, and a virtual drive provides a uniform interface for the multi-port form product in an operating system.
In other embodiments, before the step S501, that is, establishing a connection between a virtual driver in the host device and the data card device at a preset port, the method further includes:
the virtual Driver is created in the host device according to a Driver Framework for operating system (WDF).
Here, a device interface of a type of serial interface is registered with an operating system (e.g., Windows operating system) of the host device by calling an application programming interface of the WDF;
and then opening a serial node corresponding to the virtual driver by using a UI program in the host device, creating a socket by using an application programming interface of a subsystem of a Winsock Kernel (WSK), and finally, according to the created socket, connecting the virtual driver with a Voice Server of the data card device at a preset port (for example, the port number is 9527).
In other embodiments, the step S501 of establishing a connection between a virtual driver in a host device and a data card device at a preset port may be implemented by:
in step S511, a socket is created using the application programming interface.
Step S512, connection is established according to the socket and the data card equipment with the same port number and the preset port number.
Here, the Voice Server of the virtual driver and the data card device establishes connection at a preset port number, and ensures that one port corresponds to a pair of connections (the connection of the virtual driver and the data card device), thereby solving the problem of concurrency control in the Voice data transmission process of the WiFi network; the so-called concurrency control problem is that the WiFi network allows multi-user access, and the Voice Server located in the data card device also can allow multi-user access, but actually the Voice data service itself does not support multi-user concurrency, that is, only one user is allowed to actually generate Voice service at the same time, so the Voice data transmission based on the WiFi network needs to consider the concurrency control problem. In the embodiment, the problem of concurrency control is effectively avoided by only allowing a pair of virtual drivers to be connected with the data card device Voice Server at one port.
In other embodiments, the step S503 of outputting the audio information corresponding to the audio data packet includes:
analyzing the audio data packet to obtain audio information corresponding to the audio data packet;
and sending the audio information to a voice playing unit in the host equipment, and playing the audio information by the voice playing unit.
An embodiment of the present invention provides a voice data transmission method, fig. 6 is an interaction diagram of a method for implementing voice data transmission according to an embodiment of the present invention, and as shown in fig. 6, the method includes the following steps:
step S601, initializing the Voice Server of the data card device, creating a socket Server, and monitoring a preset port.
Step S602, the virtual driver of the host device sends a connection request to a preset port of the Voice Server.
Step S603, the Voice Server acquires the identification information of the host equipment, and monitors the host equipment according to the identification information to obtain monitoring information.
Here, when the virtual driver is connected to the Voice Server, the operating system of the host device allocates a random port number for the connection between the virtual driver and the Voice Server; and then the Voice Server can obtain the IP address and the port number information of the current connected host equipment, records the IP address and the port number as the basis for judging the host equipment, acquires the identification information of the virtual drive, and monitors the host equipment according to the identification information to obtain the monitoring information.
Step S604, if the monitoring information shows that there is no ongoing Voice service, the identification information is determined to meet the preset condition, and the Voice Server receives the connection request sent by the host device through the preset port and establishes connection with the host device.
Here, if there is a new host device accessing uFi types of devices through the WiFi network, first acquiring an IP address of the new host device; when the new host equipment opens the virtual drive, the virtual drive can be connected to the Voice Server based on the obtained IP address and the port number distributed by the operating system; the Voice Server service records the IP address and the port number of the new host equipment; and then, if the port corresponding to the port number does not have the ongoing Voice service, determining that the IP address and the port number of the new host equipment meet the preset conditions, and receiving a connection request sent by the virtual drive of the host equipment through the preset port by the Voice Server and establishing connection with the virtual drive of the host equipment.
If the port corresponding to the port number has the ongoing voice service, it indicates that the port corresponding to the port number has a concurrent lock, and the connection request sent by the virtual driver cannot be responded, i.e. the connection fails; therefore, the problem of voice communication of a plurality of users at one port simultaneously caused by concurrent control is effectively avoided.
Step S605, the Voice Server encapsulates the received Voice data packet sent by the other device into the socket, and then calls the socket interface to send the socket encapsulated with the Voice data packet to the virtual driver.
Here, the other device sends Voice data to the cellular network over the air interface protocol and passes to the Voice Server over the cellular network.
Step S606, the virtual driver receives the socket, extracts the valid voice data packet in the socket, and sends the voice data packet to the playback device of the host device.
In step S607, the playing device of the host device plays the audio information corresponding to the voice data packet.
The scenario realized from step S605 to step S607 is: and the Voice Server of the data card equipment sends the received Voice data packet sent by the other equipment to the virtual drive of the host equipment, and finally, the playing equipment of the host equipment plays the audio information corresponding to the Voice data packet.
Step S608, the host device acquires the to-be-sent voice data input through the UI, and uploads the to-be-sent voice data to the virtual driver.
Here, the UI is a UI corresponding to a virtual drive in the host device, and the host device acquires the to-be-transmitted voice data input through the UI, which can be understood as that a microphone of the host device uploads the acquired voice data to the virtual drive.
Step S609, the virtual driver encapsulates the Voice data packet to be sent into a socket, and sends the socket to the Voice Server through the RNDIS network interface or the WiFi network interface.
Step S610, the Voice Server receives the socket containing the Voice data to be sent by the virtual driver.
Step S611, the Voice Server parses the socket, and extracts the Voice packet from the socket.
Step S612, the Voice Server sends the Voice data to be sent to other devices.
Here, the Voice Server sends the Voice data packet to be sent to the cellular network through the air interface protocol stack, and transmits the Voice data packet to other devices through the cellular network.
The scenario realized from step S608 to step S612 is: the host device sends the collected Voice data to the Voice Server of the data card device, and then the Voice data is sent to other devices through the cellular network by the Voice Server, so that the Voice communication between the host device and other devices is realized, for example, the Voice communication between the computer A and the computer B is realized.
An embodiment of the present invention provides a Voice data transmission method, and fig. 7 is a schematic flow chart of a method for implementing Voice data transmission on a data card device side based on an embedded Linux operating system in an embodiment of the present invention, as shown in fig. 7 (an execution subject in this embodiment is a Voice Server of a data card device), the method includes the following steps:
step S701, a Voice Server is initialized, a socket Server is established, and a preset port is monitored.
Here, the preset port may be a 9527 port.
Step S702, the Voice Server establishes connection with the virtual drive on the host device as a client through the preset port.
Step S703, the Voice Server establishes a call connection and starts polling whether there is data to send or receive.
In step S704, if there is data from the virtual driver to be read, Voice server extracts valid Voice data from the socket.
Here, the virtual driver sends the socket in which the Voice data is encapsulated to the Voice Server, and then the Voice Server extracts the Voice data from the socket.
Step S705, the Voice Server sends the extracted Voice data to the cellular network through the air interface protocol stack, and transmits the Voice data to other devices through the cellular network.
Step S706, if the Voice Server finds that there is a Voice packet sent from another device through the cellular network, the Voice packet is encapsulated into the socket.
Step S707, the Voice Server calls the socket interface and sends the socket interface to the virtual driver through the RNDIS network interface or the WiFi network interface.
In this embodiment, the 9527 port number can be set to other values, as long as it is ensured that no conflict with other protocol port numbers occurs.
Fig. 8 is a schematic flowchart of a method for implementing voice data transmission on the host device side based on the Windows operating system in the embodiment of the present invention, as shown in fig. 8 (the execution main body in this embodiment is a virtual driver of the host device), in the Windows operating system, a traditional UI transmits voice data by operating a device of a port type, and in this embodiment, a virtual driver is created by using the latest WDF driver specification of microsoft, so as to ensure the consistency of an upper layer; the bottom layer adopts a WSK interface of a Windows operating system to carry out network communication with a Voice Server of the data card equipment, and the method comprises the following steps:
step S801, initializing a virtual driver, creating a device object, a driver queue, and the like, which are basic resources for operating a Windows driver.
Step S802 registers a device interface of a type of serial interface with an operating system of the host device by calling an application programming interface of the WDF.
And step S803, initializing the WSK subsystem, and establishing basic resources required by the normal work of the WSK subsystem.
Here, the WSK subsystem is a network module that implements a provider of the WSK network programming interface. The WSK subsystem interface is provided with a transmission interface at the lower layer thereof and supports various types of transmission protocols; is a network programming interface in kernel mode. The WSK network programming interface supports operations such as socket creation, binding, connection establishment, data sending and receiving and the like. The basic resources required for establishing the normal operation of the WSK subsystem may be understood as creating a socket by a virtual driver in the host device.
Step S804: and if the UI application program corresponding to the virtual driver opens the serial interface corresponding to the virtual driver, the virtual driver utilizes the application programming interface of the WSK to create a socket and establishes connection with the Voice Server at the preset port.
In step S805, if the UI corresponding to the virtual driver finds that voice data is generated on the microphone of the host, the captured voice data is directly sent to the virtual driver.
Step S806, the virtual driver encapsulates the Voice data into a socket, and sends the Voice data to a Voice Server located in the data card device through the RNDIS network interface or the WiFi network interface.
In step S807, if the virtual driver receives the socket data sent by the data card device, the valid voice data packet in the socket is extracted.
Step S808, the virtual driver writes the voice data packet into the buffer corresponding to the virtual driver for the UI program to read, and plays the audio information corresponding to the voice data through the playing device on the host.
In the embodiment, a WDF driving model is adopted, and compared with a Wavelength Division Multiplexing (WDM) model in the related art, the WDF greatly reduces the design difficulty of driving software, but it should be noted that WDM can also implement the voice data transmission method provided by the embodiment, and the design idea is basically consistent with that of the embodiment.
Fig. 9 is a schematic flow chart of a method for implementing Voice data transmission on the host device side based on an embedded Linux operating system according to an embodiment of the present invention, where, on a Linux host system, a UI in the host device transmits Voice data by operating a data card device node of a character-type terminal device (Teletype, tty), and in order to maintain the uniformity of upper-layer software, in this embodiment, a tty node is registered in the Linux operating system by using a tty subsystem of Linux, and a virtual driver is created by using a Linux kernel socket printer system, and the virtual driver communicates with a Voice Server of the data card device. As shown in fig. 9, the method comprises the steps of:
step S901, initializing the Linux kernel driver, and establishing necessary resources required for running the Linux kernel driver.
Here, the necessary resources required by the operation of the Linux kernel driver may be understood as memory space, operation speed, related protocol, and the like required by the operation of the Linux kernel driver.
Step S902, an application programming interface of the tty subsystem of the Linux is called to register a tty node in the Linux system.
Step S903, initializing the socket subsystem of the Linux system, and establishing basic resources required by the normal work of the Linux system.
Step S904, after the UI of the host device opens the tty node corresponding to the virtual driver, a socket is created by using the application programming interface of the socket of the Linux system, and the Voice Server of the data card device at the preset port is connected.
In step S905, if the UI of the host device finds that the recording data is generated on the microphone device, the captured voice data is directly written into the virtual drive.
Step S906, the virtual driver packages the Voice data into a socket and sends the Voice data to a Voice Server through an RNDIS network interface or a WIFI network interface.
In step S907, if the virtual driver receives the socket data uploaded by the Voice Server, the valid Voice data packet in the socket is extracted.
Step S908, the virtual driver writes the voice data packet into a buffer queue of the virtual driver for the UI program to read out, and plays the audio information corresponding to the voice data through the playing device on the host device.
In the related art, a WiFi network allows multiple users (i.e., multiple host devices) to access, and a Voice Server located in a data card device may also allow multiple users to access, but actually, a Voice data service itself does not support multiple users to concurrently perform, that is, only one user is allowed to actually perform a Voice service at the same time, so a concurrent control problem needs to be considered for Voice data transmission based on the WiFi network.
In this embodiment, to solve the problem of concurrency control, an IP address and port number authentication policy and a concurrency lock policy are adopted to implement the following process:
firstly, information such as an IP address, a Gateway (Gateway) address, a Domain Name System (DNS) Domain Name System server address, and the like of a Host device (i.e., identification information of the Host device) is dynamically obtained through a Dynamic Host Configuration Protocol (DHCP), and the IP address of each Host device is theoretically different;
secondly, when a virtual driver running on the host equipment establishes a socket connection Voice Server, the operating system allocates a random port number to the virtual driver;
finally, the Voice Server can obtain the IP address and port number information of the currently connected host device, and record the IP address and port number information as the basis for determining the client information (i.e. the obtained monitoring information).
In this embodiment, a concurrency lock is a software resource, and only a host device that obtains the concurrency lock can use a voice service resource, fig. 10 is a flow chart of voice concurrency control based on a WiFi network according to an embodiment of the present invention, as shown in fig. 10, where the method includes the following steps:
step S1001, when a new host device accesses uFi types of devices through a WiFi network, the IP address of the host device is obtained through a DHCP service; when the virtual drive is opened in the host equipment, the virtual drive is connected with a Voice Server based on the obtained IP address and the preset port; the Voice Server records the IP address and the port number of the new host device.
Step S1002, if there is no voice service currently in progress at the corresponding port, the host device obtains a concurrency lock.
Here, the host device obtains a concurrency lock, which may be understood as allowing the virtual driver of the host device to establish a connection with the Voice Server of the data card device.
Here, if there is an ongoing voice service, the concurrency lock is occupied and the connection of the host device with the data card device fails.
Step S1003, if the concurrent lock is acquired, the host device establishes connection with the Voice Server of the data card device.
In step S1004, if the concurrent lock is occupied, the host device exits or waits.
In step S1005, after the host device establishes a connection with the Voice Server of the data card device, the Voice data transmission is started.
Step S1006, when the voice data transmission service is finished, releasing the concurrency lock.
In order to ensure the quality of voice data transmission, in the voice transmission process, the interval requirement before two adjacent voice data packets is 160 milliseconds (ms), and the final play quality of voice is affected when the interval is too large or too small, so that the time accuracy is guaranteed to be crucial to the user experience.
For the host device side, the virtual driver ensures the virtual driver; and for the data card device side, the Voice Server program is used for ensuring. In this embodiment, queue buffer and timer techniques are used to guarantee a fixed time interval, as shown in fig. 11, the method includes the following steps:
in step S1101, both the virtual driver and the Voice Server send the received Voice packet to the data buffer.
Here, the virtual driver sends the received voice data packet collected by the microphone to the data buffer; and the Voice Server sends the received Voice data sent by the other equipment to the data buffer.
In step S1102, the virtual driver and Voice Server program starts a timer while sending the Voice packet to the buffer, and the timeout time of the timer is set to 160 ms.
In step S1103, the timer times out.
Here, if the timer time is not reached, the waiting is continued until the timer times out, the data is read from the data buffer, and the voice packet is transmitted.
In step S1104, the voice packet is read out from the data buffer and transmitted.
Here, if the Voice packet is to be received by the virtual driver to be collected by the microphone, the Voice packet is transmitted to the Voice Server of the data card device. And if the Voice data packet is sent by other equipment received by the Voice Server through an air interface protocol, the Voice Server sends the Voice data to the virtual drive.
It should be noted that, in the embodiment of the present invention, if the voice data transmission method is implemented in the form of a software functional module and is sold or used as a standalone product, it may also be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
An embodiment of the present invention provides a voice data transmission host device (i.e., a host device), fig. 12 is a schematic diagram of a composition structure of the voice data transmission host device according to the embodiment of the present invention, as shown in fig. 12, where the host device 1200 at least includes: a controller 1201 and a storage medium 1202 configured to store executable instructions, wherein:
the controller 1201 is configured to execute stored executable instructions for implementing the following steps:
establishing connection between a virtual drive in host equipment and data card equipment at a preset port; the data card equipment can monitor the virtual drive through a remote network drive interface specification or a wireless network RNDIS or WiFi;
receiving a voice data packet which is sent by the data card equipment and is subjected to Pulse Code Modulation (PCM);
and outputting the audio information corresponding to the voice data packet.
An embodiment of the present invention provides a voice data transmission data card device (i.e., a data card device), fig. 13 is a schematic diagram of a composition structure of the voice data transmission data card device according to the embodiment of the present invention, and as shown in fig. 13, the data card device 1300 at least includes: a controller 1301 and a storage medium 1302 configured to store executable instructions, wherein:
the controller 1301 is configured to execute stored executable instructions for implementing the following steps:
receiving a connection request sent by a host device through a preset port, and establishing connection with a virtual drive of the host device;
receiving a voice data packet transmitted through an air interface protocol;
and sending the voice data packet to the virtual driver.
Correspondingly, an embodiment of the present invention provides a computer storage medium, where computer-executable instructions are stored in the computer storage medium, and the computer-executable instructions are configured to execute the voice data transmission method provided in the other embodiments of the present invention.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (10)

1. A method for voice data transmission, the method comprising:
establishing connection between a virtual drive in host equipment and data card equipment at a preset port; the data card equipment can monitor the virtual drive through a remote network drive interface specification or wireless fidelity, and is a webUI type data card or uFi type equipment;
receiving a voice data packet which is sent by the data card equipment and is subjected to Pulse Code Modulation (PCM) through the virtual drive;
outputting audio information corresponding to the voice data packet;
the outputting the audio information corresponding to the voice data packet includes: and writing the voice data packet into a cache queue of the virtual drive by the virtual drive for reading by a UI program corresponding to the virtual drive, and outputting audio information corresponding to the voice data packet through a playing device on the host device.
2. The method of claim 1, wherein prior to said establishing a connection with said data card device at a predetermined port, said method further comprises:
creating the virtual driver in the host device according to a driver specification WDF of an operating system driver framework.
3. The method of claim 1, wherein establishing a connection with the data card device at a port conforming to a preset port number comprises:
creating a socket using an application programming interface;
and establishing connection according to the socket and the data card equipment with the same port number and the preset port number.
4. The method of claim 1, further comprising:
acquiring voice data to be transmitted input through a User Interface (UI); the UI is a UI corresponding to a virtual drive in the host equipment;
uploading the voice data to be sent to the virtual drive;
and the virtual driver encapsulates the voice data packet into a socket and sends the socket to the data card equipment through remote network driver interface specification or wireless fidelity.
5. A method for voice data transmission, the method comprising:
the method comprises the steps that data card equipment receives a connection request sent by host equipment through a preset port, connection is established between the data card equipment and a virtual drive of the host equipment at the preset port, and the data card equipment is a webUI type data card or uFi type equipment;
the data card equipment receives a voice data packet transmitted through an air interface protocol;
and the data card equipment sends the voice data packet to the virtual drive, the virtual drive writes the voice data packet into a cache queue of the virtual drive for reading by a UI program corresponding to the virtual drive, and audio information corresponding to the voice data packet is output through a playing device on the host equipment.
6. The method according to claim 5, wherein the receiving a connection request sent by a host device through a preset port and establishing a connection with the virtual driver comprises:
acquiring identification information of host equipment, and monitoring the host equipment according to the identification information to obtain monitoring information;
and if the monitoring information shows that the identification information meets the preset condition, receiving a connection request sent by the host equipment through a preset port, and establishing connection with the host equipment.
7. The method of claim 6, further comprising:
and if the monitoring information indicates that no ongoing voice service exists currently, determining that the identification information meets a preset condition.
8. The method of claim 5, further comprising:
receiving a socket which is sent by the virtual drive and contains voice data to be sent;
analyzing the socket to acquire the voice data to be sent;
and sending the voice data to be sent to other equipment.
9. A voice data transmission apparatus, characterized in that the apparatus comprises at least: a controller and a storage medium configured to store executable instructions, wherein:
the controller is configured to execute stored executable instructions configured to perform the voice data transmission method provided in any of the preceding claims 1 to 4; alternatively, the executable instructions are configured to perform a voice data transmission method as provided in any of the preceding claims 5 to 8.
10. A computer-readable storage medium having stored thereon computer-executable instructions configured to perform the voice data transmission method provided by any one of claims 1 to 4; alternatively, the executable instructions are configured to perform a voice data transmission method as provided in any of the preceding claims 5 to 8.
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