CN113411753B - Voice service data transmission and processing method and device of channel machine - Google Patents
Voice service data transmission and processing method and device of channel machine Download PDFInfo
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- CN113411753B CN113411753B CN202010180724.4A CN202010180724A CN113411753B CN 113411753 B CN113411753 B CN 113411753B CN 202010180724 A CN202010180724 A CN 202010180724A CN 113411753 B CN113411753 B CN 113411753B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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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
- 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
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
Abstract
The application discloses a voice service data transmission and processing method and device of a channel machine, wherein the method comprises the following steps: the machine head and the machine body of the channel machine transmit voice service data by using an Ethernet cable; when the machine head receives the voice service data from the machine body, corresponding voice playing operation is executed, recording operation of corresponding voice service is executed according to the current recording switch state, and broadcasting operation of corresponding voice service is executed according to the current broadcasting switch state. By adopting the invention, the voice service processing efficiency of the machine head can be improved, and the resource cost can be reduced.
Description
Technical Field
The present invention relates to mobile communication technology, and in particular, to a method and apparatus for transmitting and processing voice service data of a channel machine.
Background
Currently, a channel machine scheme is generally adopted: the third party cooperation headpiece is in butt joint with the vehicle-mounted station (private network communication terminal) and is realized by utilizing the communication service capability (cluster, DMO and short message) of the vehicle-mounted station. The scheme can help the third party to rapidly expand the service capacity of the private network, can reduce the development difficulty, and can improve the deployment flexibility of the third party equipment.
Implementation of the channelizer scheme requires a service program resident on the vehicle station that can schedule the communication and audio capabilities of the vehicle station in response to the business requests of the partner head. Fig. 1 shows a schematic architecture of the scheme, as shown in fig. 1, in the scheme, AT (Attention Command) instructions are transmitted between a channel machine body (i.e. a vehicle-mounted platform) and a machine head through a serial port to form a control flow; the audio signal transmitted between the channel machine body and the machine head is an analog audio signal; the machine body of the channel machine can support group calling and calling service requests initiated by the machine head; the channelizer may support bi-directional data path functions between the partner headpieces and the fuselage.
The inventors found in the course of implementing the present invention that: the existing channel machine scheme has the problems of prolonged processing of voice service at the machine head side and high cost. After research and analysis on the existing channel machine scheme, the reason for the problems is found to be as follows:
in the prior channel machine scheme, the audio input and output of the channel machine body are connected to the partner machine head through an analog audio line. When the group calling or the point calling voice service is initiated, the above channel machine scheme is adopted, the trunked voice downlink is transmitted to the machine head in an analog audio form through a Digital Video Interface (DVI) to an audio line, and the uplink is output in the analog audio form through the DVI to the audio line by the audio equipment at the machine head side. Thus, the recording/broadcasting of the head unit needs to acquire the audio signal transmitted from the body from the analog audio line, and then perform processing such as voice playing, recording, broadcasting, and the like according to the received analog audio signal. Since the object of the operation is an analog audio signal, when the recording operation is performed, signal conversion must be performed first, and then, the signal conversion is performed to a digital audio signal, so that other recording processes can be performed. Therefore, when the machine head side carries out voice service, a special driving program is required to acquire an analog audio signal and digital-to-analog conversion, so that the complexity of service processing logic of the machine head is increased, and the problems of prolonged processing, high expenditure and the like of the voice service are caused.
Disclosure of Invention
Therefore, the main purpose of the present invention is to provide a method and apparatus for transmitting and processing voice service data of a channel machine, which can improve the voice service processing efficiency of the machine head and reduce the resource overhead.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
a voice service data transmission and processing method of a channel machine comprises the following steps:
the machine head and the machine body of the channel machine transmit voice service data by using an Ethernet cable;
when the machine head receives the voice service data from the machine body, corresponding voice playing operation is executed, recording operation of corresponding voice service is executed according to the current recording switch state, and broadcasting operation of corresponding voice service is executed according to the current broadcasting switch state.
Preferably, the method further comprises:
before the transmission, the machine body and the machine head adopt a negotiation mode, and the data stream format adopted for transmitting the voice service data is determined according to the respective data stream format supporting capability.
Preferably, the data stream format is a pulse code modulation PCM format or an adaptive multi-rate speech amr_nb format.
Preferably, the executing the recording operation of the corresponding voice service according to the current recording switch state includes:
if the current recording switch is in an on state, recording the current voice service according to the received voice service data;
the broadcasting operation of executing the corresponding voice service according to the current broadcasting switch state comprises the following steps:
and if the current broadcast switch is in an on state, broadcasting the received voice service data through a broadcasting system.
Preferably, the method further comprises:
and the AT control command is transmitted between the machine head and the machine body by using the Ethernet cable.
A voice service data transmission and processing device of a channel machine is arranged in a machine head of the channel machine, and comprises: a processor;
the processor is configured to: when voice service data is received from the machine body of the channel machine, corresponding voice playing operation is executed, recording operation of corresponding voice service is executed according to the current recording switch state, and broadcasting operation of corresponding voice service is executed according to the current broadcasting switch state, wherein the voice service data is transmitted between the machine body and the machine head by using an Ethernet cable.
Preferably, the processor is further configured to:
and a negotiation mode is adopted between the machine head and the machine head in advance, and the data stream format adopted for transmitting the voice service data is determined according to the respective data stream format supporting capability.
Preferably, the data stream format is a pulse code modulation PCM format or an adaptive multi-rate speech amr_nb format.
Preferably, the processor is specifically configured to execute a recording operation of a corresponding voice service according to a current recording switch state, and includes:
if the current recording switch is in an on state, recording the current voice service according to the received voice service data;
the processor is specifically configured to perform a broadcast operation of a corresponding voice service according to a current broadcast switch state, and includes:
and if the current broadcast switch is in an on state, broadcasting the received voice service data through a broadcasting system.
Preferably, the processor is further configured to:
and transmitting an AT control command between the Ethernet cable and the airframe.
Also disclosed is a non-transitory computer readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the steps of the voice traffic data transmission and processing method of a channel engine as previously described.
Also disclosed is an electronic device comprising a non-volatile computer readable storage medium as described above, and the processor having access to the non-volatile computer readable storage medium.
In summary, the method and the device for transmitting and processing the voice service data of the channel machine provided by the invention realize the transmission of the voice service data between the machine head and the machine body of the channel machine by introducing the Ethernet, so that the machine head can directly perform corresponding voice processing without performing analog-to-digital conversion on the received signals, and the support of the machine head on the recording and broadcasting of the voice service is realized. Therefore, the invention can effectively simplify the processing logic of the voice service of the machine head, especially the processing logic of the recording, thereby improving the processing efficiency of the voice service of the machine head and reducing the resource cost.
Drawings
Fig. 1 is a schematic diagram of a conventional channel machine scheme;
FIG. 2 is a flow chart of a method according to an embodiment of the invention;
fig. 3 is a schematic diagram of a channel structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and the embodiments, in order to make the objects, technical solutions and advantages of the present invention more apparent.
Fig. 2 is a flow chart of a method according to an embodiment of the present invention, as shown in fig. 1, and a voice service data transmission and processing method of a channel machine implemented by this embodiment mainly includes:
Fig. 3 shows a schematic diagram of a channel machine architecture according to an embodiment of the present invention, where, as shown in fig. 3, the headpieces and the machine body do not use an audio line to transmit voice service data, but use an ethernet line to transmit data. Thus, because the IP channel is carried on the Ethernet, the IP channel transmits digital signals, the voice service data received from the machine body is not analog signals but digital signals for the machine head, and the machine head does not need to perform analog and digital conversion on the data sent by the machine body when recording the voice service, thereby greatly simplifying the voice service processing logic of the machine head, particularly the processing logic of the recording, further improving the voice service processing efficiency of the machine head and reducing the resource expense.
Specifically, voice service data may be transmitted between the headpiece and the body according to a real-time transmission protocol (RTP protocol), so that when group call and point call services are performed, the vehicle-mounted terminal as the body may transmit a voice stream to the headpiece through the RTP protocol.
Preferably, in order to further improve the success rate of the machine head on the voice service processing, the machine head is ensured to receive the data stream format within the supporting range, and before the machine body and the machine head transmit data, the data stream format adopted for transmitting the voice service data can be determined according to the respective data stream format supporting capability in a negotiation mode. For example, the machine body informs the machine head of the available data stream format, the machine head selects the data stream format supported by the machine head according to the notification and feeds back the data stream format to the machine body, and the machine body determines the adopted data stream format according to the feedback of the machine head.
In practical applications, a default data stream format may be set, for example, an adaptive multi-rate voice (amr_nb) format is default, and the main body and the main head directly use the default data stream format to transmit voice service data.
In order to reduce the overhead of bandwidth resources while ensuring the audio playing quality, preferably, a data stream format adopted when voice service data is transmitted between the machine body and the machine head may be: the Pulse Code Modulation (PCM) format or the amr_nb format is not limited thereto as long as it can be ensured within a range of data stream formats supported by both.
Preferably, in order to further reduce the cost and the connection line between the head and the body, the AT control command between the head and the body of the channelizer can also be transmitted by using the ethernet cable, as shown in fig. 3.
In this step, the machine body uses the voice service data sent by the ethernet cable, so the machine head directly performs the corresponding voice processing such as playing, recording or broadcasting after obtaining the voice service data from the ethernet cable, and does not need to perform the conversion processing of analog and digital before processing, thereby effectively improving the voice processing efficiency.
It should be noted that, for the voice service data received by the machine head, the machine head can directly play corresponding voice, but for whether recording or broadcasting is performed, whether to perform corresponding operation is determined according to the corresponding function switch currently set in the machine head by the user, so as to increase flexibility of voice service operation and meet information security requirements of the user.
Preferably, in this step, the following method may be adopted to execute the recording operation of the corresponding voice service according to the current recording switch state:
and if the current recording switch is in an on state, recording the current voice service according to the received voice service data. Specifically, the machine head can realize recording by calling a recording interface in an operating system (such as an android system).
In practical application, the above method can record only the downlink data of the current voice service (including point call and group call) according to the use requirement of the user, and can record the uplink and downlink data of the current voice service (including point call and group call).
Preferably, the performing the broadcasting operation of the corresponding voice service according to the current broadcasting switch state includes:
and if the current broadcast switch is in an on state, broadcasting the received voice service data through a broadcasting system. Specifically, the headpiece may implement broadcasting by calling a broadcasting system interface in the operating system.
In practical application, in order to further guarantee the privacy requirement of the user, the method can only broadcast downlink data of the current voice service (including group call) and not broadcast uplink data for the broadcast processing.
Corresponding to the above method embodiment, the present application further provides a voice service data transmission and processing device of the channel machine, which is disposed in a machine head of the channel machine, and includes: a processor;
the processor is configured to: when voice service data is received from the machine body of the channel machine, corresponding voice playing operation is executed, recording operation of corresponding voice service is executed according to the current recording switch state, and broadcasting operation of corresponding voice service is executed according to the current broadcasting switch state, wherein the voice service data is transmitted between the machine body and the machine head by using an Ethernet cable.
Preferably, the processor is further configured to: and a negotiation mode is adopted between the machine head and the machine head in advance, and the data stream format adopted for transmitting the voice service data is determined according to the respective data stream format supporting capability.
Preferably, the data stream format is a pulse code modulation PCM format or an adaptive multi-rate speech amr_nb format.
Preferably, the processor is specifically configured to execute a recording operation of a corresponding voice service according to a current recording switch state, and includes:
if the current recording switch is in an on state, recording the current voice service according to the received voice service data;
the processor is specifically configured to perform a broadcast operation of a corresponding voice service according to a current broadcast switch state, and includes:
and if the current broadcast switch is in an on state, broadcasting the received voice service data through a broadcasting system.
Preferably, the processor is further configured to:
and transmitting an AT control command between the Ethernet cable and the airframe.
It should be noted that not all the steps and modules in the above processes and the structure diagrams are necessary, and some steps or modules may be omitted according to actual needs. The execution sequence of the steps is not fixed and can be adjusted as required. The division of the modules is merely for convenience of description and the division of functions adopted in the embodiments, and in actual implementation, one module may be implemented by a plurality of modules, and functions of a plurality of modules may be implemented by the same module, and the modules may be located in the same device or different devices.
The hardware modules in the various embodiments may be implemented mechanically or electronically. For example, a hardware module may include specially designed permanent circuits or logic devices (e.g., special purpose processors such as FPGAs or ASICs) for performing certain operations. A hardware module may also include programmable logic devices or circuits (e.g., including a general purpose processor or other programmable processor) temporarily configured by software for performing particular operations. As regards implementation of the hardware modules in a mechanical manner, either by dedicated permanent circuits or by circuits that are temporarily configured (e.g. by software), this may be determined by cost and time considerations.
The present application also discloses a non-transitory computer readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the steps of the voice traffic data transmission and processing method of a channelizer as described herein.
As shown in fig. 4, the present application also discloses an electronic device comprising a non-volatile computer readable storage medium as described above, and the processor having access to the non-volatile computer readable storage medium.
Specifically, a system or apparatus provided with a storage medium on which a software program code realizing the functions of any of the above embodiments is stored, and a computer (or CPU or MPU) of the system or apparatus may be caused to read out and execute the program code stored in the storage medium. Further, some or all of the actual operations may be performed by an operating system or the like operating on a computer based on instructions of the program code. The program code read out from the storage medium may also be written into a memory provided in an expansion board inserted into a computer or into a memory provided in an expansion unit connected to the computer, and then, based on instructions of the program code, a CPU or the like mounted on the expansion board or the expansion unit may be caused to perform part or all of actual operations, thereby realizing the functions of any of the above embodiments.
Storage medium implementations for providing program code include floppy disks, hard disks, magneto-optical disks, optical disks (e.g., CD-ROMs, CD-R, CD-RWs, DVD-ROMs, DVD-RAMs, DVD-RWs, DVD+RWs), magnetic tapes, non-volatile memory cards, and ROMs. Alternatively, the program code may be downloaded from a server computer or cloud by a communications network.
In this document, "schematic" means "serving as an example, instance, or illustration," and any illustrations, embodiments described herein as "schematic" should not be construed as a more preferred or advantageous solution. For simplicity of the drawing, the parts relevant to the present invention are shown only schematically in the drawings, and do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. In this document, "a" does not mean to limit the number of relevant portions of the present invention to "only one thereof", and "an" does not mean to exclude the case where the number of relevant portions of the present invention is "more than one". In this document, "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used merely to indicate relative positional relationships between the relevant portions, and do not limit the absolute positions of the relevant portions.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A voice service data transmission and processing method of a channel machine, comprising:
the machine head and the machine body of the channel machine transmit voice service data by using an Ethernet cable;
when the machine head receives voice service data from the machine body, corresponding voice playing operation is executed, recording operation of corresponding voice service is executed according to the current recording switch state, and broadcasting operation of corresponding voice service is executed according to the current broadcasting switch state;
the broadcasting operation of executing the corresponding voice service according to the current broadcasting switch state comprises the following steps:
and if the current broadcast switch is in an on state, broadcasting the received downlink voice service data through a broadcasting system.
2. The method according to claim 1, wherein the method further comprises:
before the transmission, the machine body and the machine head adopt a negotiation mode, and the data stream format adopted for transmitting the voice service data is determined according to the respective data stream format supporting capability.
3. The method of claim 2, wherein the data stream format is a pulse code modulated PCM format or an adaptive multi-rate speech amr_nb format.
4. The method of claim 1, wherein the performing the recording operation of the corresponding voice service according to the current recording switch state comprises:
and if the current recording switch is in an on state, recording the current voice service according to the received voice service data.
5. The method according to claim 1, wherein the method further comprises:
and the AT control command is transmitted between the machine head and the machine body by using the Ethernet cable.
6. A voice service data transmission and processing device of a channel machine, which is arranged in a machine head of the channel machine, and is characterized by comprising: a processor;
the processor is configured to: when voice service data is received from a machine body of a channel machine, corresponding voice playing operation is executed, recording operation of corresponding voice service is executed according to the current recording switch state, broadcasting operation of corresponding voice service is executed according to the current broadcasting switch state, the voice service data is transmitted between the machine body and the machine head by using an Ethernet cable, and the broadcasting operation of corresponding voice service is executed according to the current broadcasting switch state, wherein the steps of: and if the current broadcast switch is in an on state, broadcasting the received downlink voice service data through a broadcasting system.
7. The apparatus of claim 6, wherein the processor is further configured to:
and a negotiation mode is adopted between the machine head and the machine head in advance, and the data stream format adopted for transmitting the voice service data is determined according to the respective data stream format supporting capability.
8. The apparatus of claim 7, wherein the data stream format is a pulse code modulated PCM format or an adaptive multi-rate speech amr_nb format.
9. The apparatus of claim 6, wherein the processor is configured to perform a recording operation of the corresponding voice service according to the current recording switch state, and comprises:
and if the current recording switch is in an on state, recording the current voice service according to the received voice service data.
10. The apparatus of claim 6, wherein the processor is further configured to:
and transmitting an AT control command between the Ethernet cable and the airframe.
11. A non-transitory computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the steps of the voice traffic data transmission and processing method of the channel engine of any of claims 1 to 5.
12. An electronic device comprising the non-volatile computer-readable storage medium of claim 11, and the processor having access to the non-volatile computer-readable storage medium.
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