CN210016520U - Voice conversion processing device suitable for Ethernet transmission - Google Patents
Voice conversion processing device suitable for Ethernet transmission Download PDFInfo
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- CN210016520U CN210016520U CN201921220828.2U CN201921220828U CN210016520U CN 210016520 U CN210016520 U CN 210016520U CN 201921220828 U CN201921220828 U CN 201921220828U CN 210016520 U CN210016520 U CN 210016520U
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Abstract
The utility model discloses a speech conversion processing apparatus suitable for ethernet transmission, he includes: the system comprises a main control module (1), a programmable logic array (2), an audio codec (3), a simulation user interface module (4), an Ethernet controller (5), an Ethernet transformer (6) and a power supply module (7). The utility model discloses synthesize and adopt ethernet bus technique, pronunciation codec technology, data processing technique, the big problem of shake and time delay when having solved ethernet and adopting IP mode transmission voice signal betterly has improved communication efficiency and communication quality to have characteristics such as small, with low costs, installation simple to use are convenient.
Description
Technical Field
The invention belongs to the technical field of voice communication, and particularly relates to a voice conversion processing device suitable for Ethernet transmission.
Background
The Ethernet has the advantages of wide application, high communication rate, strong resource sharing capability, good openness and the like, and is widely applied to low-cost special communication places such as special network communication, simulation training, teaching demonstration and the like. However, because the ethernet transmission adopts an IP packet switching mode, the data delay and jitter are large, and a corresponding technical problem is brought to the switching and transmission of voice/video data with high requirements on real-time performance and jitter. At present, voice switching and transmission equipment based on an Ethernet data format adopts an SIP voice system scheme, but the SIP voice system scheme mainly has the following problems: firstly, the SIP voice system needs to be configured with a special SIP server and an SIP telephone terminal, and the cost is high; secondly, when the system operates normally, the corresponding SIP server and the corresponding SIP terminal need to distribute unique IP address resources; thirdly, the communication protocol is complex, the data format is fixed, and the method can not be widely applied to some low-cost and self-defined Ethernet switching systems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the voice conversion processing device suitable for Ethernet transmission has the characteristics of small volume, low cost, simplicity and convenience in installation and use and the like, solves the problems of jitter and large time delay when the Ethernet transmits voice signals in an IP mode, and improves the communication efficiency and the communication quality.
The technical scheme of the utility model is that: a voice conversion processing apparatus adapted for ethernet transmission, comprising: the system comprises a main control module, a programmable logic array, an audio codec, a simulation user interface module, an Ethernet controller, an Ethernet transformer and a power supply module;
the main control module is used for voice processing and call process control, controls the programmable logic array to complete the exchange and transmission of voice and signaling, and controls the audio codec to complete the switching of voice coding modes, the generation of dual-tone multi-frequency signal tones and the detection of the state of a simulated user interface;
the analog user interface module is connected with an analog user in a two-wire mode to finish feeding, state detection, ringing, two-four wire conversion and voice signal level adjustment of an analog user telephone; during voice communication, converting a two-wire balanced voice signal sent by a simulation user into a four-wire unidirectional voice and sending the four-wire unidirectional voice to the audio codec, or converting a four-wire unidirectional voice signal sent by the audio codec into a two-wire balanced voice signal and sending the two-wire balanced voice signal to a simulation user telephone;
the audio codec adopts an 8-bit compressed PCM codec chip, performs coding and decoding of analog voice, high-frequency noise filtering and voice echo cancellation under the control of the main control module, and sends a user state detection state signal acquired by the user interface simulation module to the main control module after debouncing processing;
the programmable logic array completes the exchange and transmission of voice and signaling under the control of the main control module, completes the processing and forwarding of Ethernet interface data/commands transmitted by the Ethernet controller, and realizes the conversion of audio code streams under the cooperation of the audio codec;
the Ethernet controller adopts a current type Ethernet control chip, supports 10Base5, 10Base2, 10BaseT, 100BASE-X, 100BASE-TX and 100BASE-FX, and can automatically detect the connected medium;
the Ethernet transformer is mainly used for completing Ethernet signal transmission and reception, impedance matching, waveform restoration, signal clutter suppression, high voltage isolation, Ethernet signal transmission and the like;
the power supply module is used for converting alternating current 220V50Hz into direct current 48V, direct current 5V and alternating current 75V25Hz ringing current.
Still further, the main control module comprises: a high speed microcontroller core for control and data processing, a data memory for storing data, a ROM memory for storing programs, telephone numbers, user information, and a digital peripheral for communicating with an external programmable logic array chip.
Further, the programmable logic array comprises: CPU interface module, command analysis module, data exchange module, Ethernet interface module, special signal sound analysis module, special signal sound generation module, voice package and analysis module, voice buffer module, and voice format conversion module;
the CPU interface module is used for interface adaptation with the data peripheral in the main control module; the command analysis module is used for receiving the command of the CPU interface module and controlling the data exchange module, the Ethernet interface module and the special signal tone generation module according to the analyzed command; the command analysis module analyzes the called telephone number input by the CPU interface module into a corresponding interface ID, so that the data exchange module can be conveniently and quickly searched; the command analysis module is used for summarizing the state information of the data exchange module, the Ethernet interface module and the special signal tone analysis module and reporting the state information to the CPU interface module; the data exchange module adopts a mode of establishing a lookup table by using a block RAM rich in a programmable logic array, and realizes the exchange of voice data under the control of the command analysis module; the Ethernet interface module packages, caches and sends the voice data input by the data exchange module and the command input by the command analysis module to the Ethernet controller; after receiving the buffer memory and unpacking of the Ethernet controller, sending voice data to the data exchange module according to the category, and sending command information to the command analysis module; the special signal sound analysis module analyzes the corresponding special signal sound dual-tone multifrequency according to the voice data sent by the voice packaging and analysis module, translates the special signal sound dual-tone multifrequency into Roman numerals of 0-16 and sends the Roman numerals to the command analysis module; the special signal tone generating module generates special signal tones such as dial tone, ring back tone, busy tone, no tone, strong insertion tone, suspension call and the like according to the command code input by the command analyzing module; the voice packaging and analyzing module packages the 160 byte stream and the voice channel ID sent by the voice cache module into Ethernet data packets and respectively sends the Ethernet data packets to the data exchange module and the special signal tone analyzing module; the voice packaging and analyzing module analyzes a corresponding voice channel ID according to the Ethernet data packet sent by the data exchange module and the special signal sound analyzing module, and stores a voice data stream with the length of 160 bytes into a buffer corresponding to the voice channel ID; the voice cache module utilizes a block RAM rich in a programmable logic array and opens up a corresponding cache space according to the actual voice channel number; and the voice format conversion module completes the serial-parallel conversion of the voice data stream and splits the voice byte stream of the corresponding channel according to the number of the voice channels.
The utility model discloses synthesize and adopt ethernet bus technique, pronunciation codec technology, data processing technique, the big problem of shake and time delay when having solved ethernet and adopting IP mode transmission voice signal betterly has improved communication efficiency and communication quality to have characteristics such as small, with low costs, installation simple to use are convenient.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic diagram of the main control module of the present invention;
fig. 3 is a functional block diagram of the programmable logic array according to the present invention.
Detailed Description
Example 1: referring to fig. 1 to 3, a voice conversion processing apparatus suitable for ethernet transmission includes: the system comprises a main control module 1, a programmable logic array 2, an audio codec 3, a simulation user interface module 4, an Ethernet controller 5, an Ethernet transformer 6 and a power module 7;
the main control module 1 is used for voice processing and call process control, controls the programmable logic array 2 to complete the exchange and transmission of voice and signaling, and controls the audio codec 3 to complete the switching of voice coding modes, the generation of dual-tone multi-frequency signal tones, and the detection of the state of a simulated user interface; the main control module 1 includes: a high-speed microcontroller core 11 for control and data processing, a data memory 12 for storing data, a ROM memory 13 for storing programs, telephone numbers, user information, a digital peripheral 14 for communicating with an external programmable logic array chip;
the analog user interface module 4 is connected with an analog user in a two-wire mode to finish feeding, state detection, ringing, two-four wire conversion and voice signal level adjustment of an analog user telephone; during voice communication, a two-wire balanced voice signal sent by a simulation user is converted into a four-wire unidirectional voice and sent to the audio codec 3, or the four-wire unidirectional voice signal sent by the audio codec 3 is converted into a two-wire balanced voice signal and sent to a simulation user telephone;
the audio codec 3 adopts an 8-bit compressed PCM codec chip, performs analog voice encoding and decoding, high-frequency noise filtering and voice echo cancellation under the control of the main control module 1, and sends a simulated user state detection state signal collected by the simulated user interface module 4 to the main control module 1 after being subjected to debounce processing;
the programmable logic array 2 completes the exchange and transmission of voice and signaling under the control of the main control module 1, completes the processing and forwarding of the ethernet interface data/command transmitted by the ethernet controller 5, and realizes the conversion of audio code stream under the cooperation of the audio codec 3;
the programmable logic array 2 comprises: a CPU interface module 21, a command analysis module 22, a data exchange module 23, an Ethernet interface module 24, a special tone analysis module 25, a special tone generation module 26, a voice encapsulation and analysis module 27, a voice buffer module 28, and a voice format conversion module 29;
the CPU interface module 21 is adapted to interface with the data peripheral 14 in the main control module 1; the command parsing module 22 is configured to receive a command from the CPU interface module 21, and control the data exchange module 23, the ethernet interface module 24, and the special tone generating module 26 according to the parsed command; the command analysis module 22 analyzes the called telephone number input by the CPU interface module 21 into a corresponding interface ID, which facilitates quick search of the data exchange module 23; the command analysis module 22 is configured to summarize status information of the data exchange module 23, the ethernet interface module 24, and the special tone analysis module 25, and report the status information to the CPU interface module 21; the data exchange module 23 adopts a lookup table mode established by a block RAM rich in a programmable logic array, and realizes the exchange of voice data under the control of the command analysis module 22; the ethernet interface module 24 packages, buffers and sends the voice data input by the data switching module 23 and the command input by the command parsing module 22 to the ethernet controller 5; after receiving the buffering and unpacking performed by the ethernet controller 5, sending voice data to the data exchange module 23 according to the category, and sending command information to the command analysis module 22; the special tone analyzing module 25 analyzes the corresponding special tone dual-tone multi-frequency according to the voice data sent by the voice encapsulating and analyzing module 27, and translates the special tone dual-tone multi-frequency into Roman numbers ranging from 0 to 16 and sends the Roman numbers to the command analyzing module 22; the special tone generating module 26 generates special tones such as dial tone, ring back tone, busy tone, no tone, strong insertion tone, and suspension call according to the command code inputted by the command parsing module 22; the voice encapsulating and parsing module 27 encapsulates the 160 byte stream and the voice channel ID sent by the voice buffer module 28 into ethernet packets, and sends the ethernet packets to the data switching module 23 and the special tone parsing module 25, respectively; the voice encapsulating and parsing module 27 parses a corresponding voice channel ID according to the ethernet packets sent by the data switching module 23 and the special tone parsing module 25, and stores a voice data stream with a length of 160 bytes into a buffer corresponding to the voice channel ID; the voice buffer module 28 utilizes the block RAM rich in the programmable logic array and opens up a corresponding buffer space according to the actual voice channel number; the voice format conversion module 29 completes the serial-to-parallel conversion of the voice data stream and splits the voice byte stream of the corresponding channel according to the number of voice channels;
the Ethernet controller 5 adopts a current type Ethernet control chip, supports 10Base5, 10Base2, 10BaseT, 100BASE-X, 100BASE-TX and 100BASE-FX, and can automatically detect the connected medium;
the Ethernet transformer 6 mainly completes Ethernet signal transmission and reception, impedance matching, waveform restoration, signal clutter suppression, high voltage isolation, Ethernet signal transmission and the like;
the power module 7 is used for converting alternating current 220V50Hz into direct current 48V, direct current 5V and alternating current 75V25Hz ringing current.
Claims (3)
1. A voice conversion processing apparatus adapted for ethernet transmission, comprising: the system comprises a main control module (1), a programmable logic array (2), an audio codec (3), a simulation user interface module (4), an Ethernet controller (5), an Ethernet transformer (6) and a power supply module (7);
the main control module (1) is used for voice processing and call process control, controls the programmable logic array (2) to complete the exchange and transmission of voice and signaling, and controls the audio codec (3) to complete the switching of voice coding modes, the generation of dual-tone multi-frequency signal tones and the detection of the state of a simulated user interface;
the analog user interface module (4) is connected with an analog user in a two-wire mode to finish feeding, state detection, ringing, two-four wire conversion and voice signal level adjustment of an analog user telephone; during voice communication, a two-line balanced voice signal sent by a simulation user is converted into a four-line unidirectional voice and sent to the audio codec (3), or a four-line unidirectional voice signal sent by the audio codec (3) is converted into a two-line balanced voice signal and sent to a simulation user telephone;
the audio codec (3) adopts an 8-bit compression PCM codec chip, performs coding and decoding, high-frequency noise filtering and voice echo cancellation of analog voice under the control of the main control module (1), and sends a jitter-removing processing to the main control module (1) after analog user state detection state signals collected by the analog user interface module (4);
the programmable logic array (2) completes the exchange and transmission of voice and signaling under the control of the main control module (1), completes the processing and forwarding of Ethernet interface data/commands transmitted by the Ethernet controller (5), and realizes the conversion of audio code streams under the cooperation of the audio codec (3);
the Ethernet controller (5) adopts a current type Ethernet control chip, supports 10Base5, 10Base2, 10BaseT, 100BASE-X, 100BASE-TX and 100BASE-FX, and can automatically detect the connected medium;
the Ethernet transformer (6) mainly completes Ethernet signal transmission and reception, impedance matching, waveform restoration, signal clutter suppression, high voltage isolation, Ethernet signal transmission and the like;
the power supply module (7) is used for converting alternating current 220V50Hz into direct current 48V, direct current 5V and alternating current 75V25Hz ringing current.
2. A speech conversion processing apparatus adapted for ethernet transmission according to claim 1, wherein: the master control module (1) comprises: a high-speed microcontroller core (11) for control and data processing, a data memory (12) for storing data, a ROM memory (13) for storing programs, telephone numbers, user information, and a data peripheral (14) for communicating with an external programmable logic array chip.
3. A speech conversion processing apparatus adapted for ethernet transmission according to claim 1, wherein: the programmable logic array (2) comprises: the system comprises a CPU interface module (21), a command analysis module (22), a data exchange module (23), an Ethernet interface module (24), a special signal sound analysis module (25), a special signal sound generation module (26), a voice packaging and analysis module (27), a voice buffer module (28) and a voice format conversion module (29);
the CPU interface module (21) is used for interface adaptation with the data peripheral (14) in the main control module (1); the command analysis module (22) is used for receiving the command of the CPU interface module (21) and controlling the data exchange module (23), the Ethernet interface module (24) and the special signal tone generation module (26) according to the analyzed command; the command analysis module (22) analyzes the called telephone number input by the CPU interface module (21) into a corresponding interface ID, so that the data exchange module (23) can be conveniently and quickly searched; the command analysis module (22) is configured to summarize status information of the data exchange module (23), the ethernet interface module (24), and the special tone analysis module (25), and report the status information to the CPU interface module (21); the data exchange module (23) adopts a lookup table mode established by a block RAM rich in a programmable logic array, and realizes the exchange of voice data under the control of the command analysis module (22); the Ethernet interface module (24) packages, buffers and sends the voice data input by the data exchange module (23) and the command input by the command analysis module (22) to the Ethernet controller (5); after receiving the buffer and unpacking of the Ethernet controller (5), sending voice data to the data exchange module (23) according to the type, and sending command information to the command analysis module (22); the special tone analyzing module (25) analyzes the corresponding special tone dual-tone multifrequency according to the voice data sent by the voice packaging and analyzing module (27), translates the special tone dual-tone multifrequency into Roman numbers of 0-16 and sends the Roman numbers to the command analyzing module (22); the special signal tone generating module (26) generates special signal tones such as dial tone, ring back tone, busy tone, no tone, strong insertion tone, suspension call and the like according to the command code input by the command analyzing module (22); the voice encapsulating and analyzing module (27) encapsulates the 160 byte stream and the voice channel ID sent by the voice buffer module (28) into Ethernet data packets and respectively sends the Ethernet data packets to the data switching module (23) and the special tone analyzing module (25); the voice packaging and analyzing module (27) analyzes a corresponding voice channel ID according to the Ethernet data packet sent by the data exchange module (23) and the special signal sound analyzing module (25), and stores a voice data stream with the length of 160 bytes into a buffer corresponding to the voice channel ID; the voice cache module (28) utilizes a block RAM rich in a programmable logic array and opens up a corresponding cache space according to the actual voice channel number; the voice format conversion module (29) completes the serial-parallel conversion of the voice data stream and splits the voice byte stream of the corresponding channel according to the number of voice channels.
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| CN201921220828.2U CN210016520U (en) | 2019-07-30 | 2019-07-30 | Voice conversion processing device suitable for Ethernet transmission |
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| CN201921220828.2U CN210016520U (en) | 2019-07-30 | 2019-07-30 | Voice conversion processing device suitable for Ethernet transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115173927A (en) * | 2022-07-11 | 2022-10-11 | 南京科伊星信息科技有限公司 | Satellite communication simulation terminal system for duplex transceiving of radio frequency signals in UHF frequency band |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115173927A (en) * | 2022-07-11 | 2022-10-11 | 南京科伊星信息科技有限公司 | Satellite communication simulation terminal system for duplex transceiving of radio frequency signals in UHF frequency band |
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