CN205829661U - Flush bonding processor voice gateways - Google Patents

Abstract

This utility model provides a kind of flush bonding processor voice gateways.Described flush bonding processor voice gateways include main chip module, communication unit, flash storage, RAM memory, described main chip module is dsp chip, described communication unit, described flash storage and described RAM memory electrically connect with described main chip module respectively, described communication unit includes being sequentially connected electrically Codec chip, DAA Circuits System and RJ11 interface, described Codec chip is connected with described main chip module, described dsp chip built-in circuit, described Codec built-in chip type circuit and described DAA Circuits System collectively form FXO interface, described FXO interface realizes and the connection of outside PSTN network.Described flush bonding processor voice gateways of the present utility model, by using main chip module, are effectively improved the real-time of speech processes, it is to avoid traditional many core chip design the R&D cycle length of existence and the shortcoming that production cost is high.

Description

Flush bonding processor voice gateways

Technical field

This utility model relates to network service electronic technology field, in particular it relates to a kind of flush bonding processor voice gateways.

Background technology

Along with the development of the development of communication technology, especially packet-switch technology, packet voice business gradually large area substitutes the voice service of legacy circuit-switched form.Wherein, packet voice business is to realize Tone Via business on the basis of packet switching network, carries out the transmission of voice data stream on a packet switched network, can make full use of the feature of network statistics multiplexing, improves the capacity of system.The most frequently used packet voice business is the VoIP(networking telephone, i.e. IP telephone service).VoIP, as a kind of IP-based data transmission technology, utilizes internet global to interconnect environment widely, traditional PSTN network (i.e. PSTN) and the Internet is combined, and effectively reduces packet voice operation system cost and management cost.

At present, relatively common VoIP speech access device has one, two, four, eight mouthfuls of voice gateways etc., and upper voice gateway mostly follows MCU(single-chip microcomputer)+DSP(Digital Signal Processing) processing scheme, its design packet contains multiple independent processors: at least one risc processor (reduced instruction set chip) realizes procotol and processes, perform position and byte manipulation to realize packet header and routing iinformation decoding, data packing, and processing sequence labelling is so that information bag can correctly realize acoustic playback, also can process main system control and user interface simultaneously.In addition, also need to one or more dsp chip survey to the tone realizing echo cancellor, noise suppressed and the side of speaking, before by information package, dsp chip also performs quiet detection and compress speech, and perform decoding and decompress such reverse operating, these processors are plus the electronic device of some other necessity, and total production cost is the highest.In addition, data exchange between multiple processors, some public dual port RAM (random access register) or FIFO(first in first out must be used) memory is to make the buffer between multiple processor, or use a complicated software handshake agreement to control data exchange, cause longer research and development girth and higher R&D costs.

Therefore, it is necessary to provide the flush bonding processor voice gateways of a kind of improvement, overcome drawbacks described above.

Utility model content

There is R&D cycle length and the high technical problem of production cost because of multiple independent processors in order to solve above-mentioned existing VoIP voice gateways, this utility model provides a kind of flush bonding processor voice gateways, has the advantage that the R&D cycle is short and production cost is low.

This utility model provides a kind of flush bonding processor voice gateways, including main chip module, communication unit, flash storage, RAM memory, described main chip module is dsp chip, described communication unit, described flash storage and described RAM memory electrically connect with described main chip module respectively, described communication unit includes being sequentially connected electrically Codec chip, DAA Circuits System and RJ11 interface, described Codec chip is connected with described main chip module, described dsp chip built-in circuit, described Codec built-in chip type circuit and described DAA Circuits System collectively form FXO interface, described FXO interface realizes and the connection of outside PSTN network.

In flush bonding processor voice gateways one preferred embodiment that this utility model provides, described main chip module is PEF33616 processor.

In flush bonding processor voice gateways one preferred embodiment that this utility model provides, described flash storage is Norflash memorizer.

In flush bonding processor voice gateways one preferred embodiment that this utility model provides, the quantity of described communication unit is 8, and is connected to described PEF33616 processor.

In flush bonding processor voice gateways one preferred embodiment that this utility model provides, also including ethernet transceiver, transformator and the RJ45 interface being sequentially connected electrically, described ethernet transceiver is connected with described main chip module.

In flush bonding processor voice gateways one preferred embodiment that this utility model provides, also include that the USB being connected with described main chip module turns serial port chip.

Compared to prior art, the described flush bonding processor voice gateways that this utility model provides have the advantages that

One, by using main chip module, all high compression/low time delay encoding and decoding can be supported and support the functions such as the detection of echo cancelltion, voice status, silence compression, jitter buffer and comfort noise generation completely, it is ensured that interactive voice unified, high-quality；Additionally, use the main chip module of single main core processing device structure, VoIP voice gateways are made to establish good balance between power consumption and the complexity of application.

Two, the hardware composition of described flush bonding processor voice gateways, is effectively improved the real-time of speech processes, it is to avoid traditional many core chip design the shortcoming that the power consumption existed is the biggest；Its all work all completed real-time Speech Signal Compression, the signal of DTMF(multisound and double-frequency by a processor) detection and the work such as generation, Echo cancellation of signal, avoid real-time performance to be affected and cause voice quality to decline, limit the session way of communication, the requirement of a large number of users communication can not be met, make gateway provide service to be possibly realized for multi-user.

Three, the hardware designs of described flush bonding processor voice gateways, it is achieved complicated systemic-function；Use a main chip module as control administrative center, the operation embedded real-time operating system that energy is stable, various network protocol stack can be supported, such as TCP/IP, enable speech data the most effectively to transmit.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme in this utility model embodiment, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:

Fig. 1 is the hardware composition structured flowchart of flush bonding processor voice gateways one preferred embodiment that this utility model provides.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.

Refer to Fig. 1, for the hardware composition structured flowchart of flush bonding processor voice gateways one preferred embodiment that this utility model provides.nullDescribed flush bonding processor voice gateways 1 include main chip module 11、Communication unit 13、Flash storage 15、RAM memory 17，Described main chip module 11 is dsp chip，Described communication unit 13、Described flash storage 15 and described RAM memory 17 electrically connect with described main chip module 11 respectively，Described communication unit 13 includes being sequentially connected electrically Codec chip 131、DAA Circuits System 133 and RJ11 interface 135，Described Codec chip 131 is connected with described main chip module 11，Described dsp chip 11 built-in circuit、Described Codec chip 131 built-in circuit and described DAA Circuits System 133 collectively form FXO interface，Described FXO interface realizes and the connection of outside PSTN network.

Described main chip module 11 is PEF33616 processor.It can complete the collaborative work of each parts, also can do substantial amounts of calculating and process (the coded data packing after processing such as self DSP is transmitted by network), and the speech data that network transmitted unpack after deliver to phone through decoding process, PEF33616 processor is purchased in German network device chip manufacturer Lantiq.This processor is a powerful network communication processor, uses MIPS structure, and speed, up to 400 MIPS, can realize the various interface such as DDR2, SPI, PCM, UART, Ethernet on universaling I/O port；Secondly this processor has been internally integrated necessary DSP to complete the encoding and decoding work of audio frequency, video.Low-density voice gateways, the IAD equipment (integrated access equipment) of VoIP that described flush bonding processor voice gateways 1 process by using the internal low-power consumption of PEF33616 processor, High Performance DSP row hybrid digital signal processor to aim at for speech and design, traditional analog voice messaging and serial main frame based on bag process can be made seamless link.Additionally, described PEF33616 processor is also provided with TCP/IP network protocol stack, and there is Add-ons necessary to a series of complete end to end connectivity scheme.Core SDK software kit is easy to developer and is designed embedded Internet application with PEF33616 network processing unit.It contains a lot of general connection application software, as the webserver, Ethernet, file management and Flash update.Highly integrated module and efficient design make that the code of generation is little, function is strong, configurable and expansible.

Described communication unit 13 includes being sequentially connected electrically Codec chip 131, DAA Circuits System 133 and RJ11 interface 135, and described Codec chip 131 is connected with described main chip module 11, and described RJ11 interface 135 is connected with outside PSTN network.In the present embodiment, the quantity of described communication unit is 8, and is connected to described PEF33616 processor.

Described FXO interface includes described dsp chip 11 built-in circuit, described Codec chip 131 built-in circuit and described DAA Circuits System 133, and described dsp chip 11 built-in circuit is provided by the DSP that described PEF33616 processor is built-in；Described Codec chip 131 built-in circuit is converted into analog signal by the D/A(digital signal that described Codec chip 131 is built-in) and A/D(analog signal be converted into digital signal) provide.The effect of described DAA Circuits System 133 is to remove high-voltage direct-current biasing, is closed by PSTN network loop, thus only transmits the analog AC signal from PSTN network.Described DAA Circuits System 133 uses the CPC 5622A product design as DAA function of Clare company；Normal AC and DC telephone wire termination, two to four line mixed functions, on-hook and off-hook detection, called person identification, half-wave and all-wave ring detecting circuit can be provided, major part codec and DSP device can be supported.This chip being suitable for Set Top Box and phone application may replace magnetic transformer and other discrete components miscellaneous, thus reduce and take space and cost on plate.

Described flash storage 15 is Norflash memorizer.Described Norflash memorizer obtains instruction from there and starts to perform after being used for depositing program code, system electrification or reset；Its storage sky that can be used as when program performs is asked, also because of its feature erasable, programmable, it is simple to be updated program, or modifies program and upgrades.

Described RAM memory 17 is for operation code, specifically can use the RAM memory of DDR2.

Further, described flush bonding processor voice gateways 1 also include ethernet transceiver, transformator and the RJ45 interface being sequentially connected electrically, and the USB that described ethernet transceiver is connected with described main chip module 11 and is connected with described main chip module 11 turns serial port chip.

The operation principle of described flush bonding processor voice gateways 1: in traditional PSTN network phone connects, telephone central local side switch provides feed and ringing-current, and phone itself completes Tip/Ring circuit and asks the calling on service or response PSTN.The theory of described flush bonding processor voice gateways 1 design is that gateway simulation becomes a switch.Described FXO interface simulation telephony feature, it is provided that loop closing function also detects incoming ring；Described DAA Circuits System 133 emulates a phone, is closed by the loop of PSTN network and removes HVDC component, only allows the analog AC signal on PSTN network pass through.Described Codec chip 131 is responsible for being compressed audio digital signals and decompressing.Compression algorithm can realize with hardware DSP, it is also possible to realizes with pure software.Described PEF33616 processor 11 realizes the functions such as protocol stack process and the route processing of gateway.Data stream after protocol stack is responsible for compression is packaged, and adds IP agreement packet header, forms the IP packet that can transmit in voip network.After data stream is broken into IP packet by protocol stack, select suitably to be routed across Ethernet interface and be sent in voip network.After receiving terminal gateway receives IP packet, contract the PCM digital signal decoding after decompressing by packet decompression, recovers primary speech signal.

Described flush bonding processor voice gateways 1 have the advantages that

One, by using main chip module 11, all high compression/low time delay encoding and decoding can be supported and support the functions such as the detection of echo cancelltion, voice status, silence compression, jitter buffer and comfort noise generation completely, it is ensured that interactive voice unified, high-quality；Additionally, use the main chip module 11 of single main core processing device structure, VoIP voice gateways are made to establish good balance between power consumption and the complexity of application.

Two, the hardware composition of described flush bonding processor voice gateways 1, is effectively improved the real-time of speech processes, it is to avoid traditional many core chip design the shortcoming that the power consumption existed is the biggest；Its all work all completed real-time Speech Signal Compression, the signal of DTMF(multisound and double-frequency by a processor) detection and the work such as generation, Echo cancellation of signal, avoid real-time performance to be affected and cause voice quality to decline, limit the session way of communication, the requirement of a large number of users communication can not be met, make gateway provide service to be possibly realized for multi-user.

Three, the hardware designs of described flush bonding processor voice gateways 1, it is achieved complicated systemic-function；Use a main chip module 11 as control administrative center, the operation embedded real-time operating system that energy is stable, various network protocol stack can be supported, such as TCP/IP, enable speech data the most effectively to transmit.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in scope of patent protection of the present utility model.

Claims (6)

1. flush bonding processor voice gateways, it is characterized in that: include main chip module, communication unit, flash storage, RAM memory, described main chip module is dsp chip, described communication unit, described flash storage and described RAM memory electrically connect with described main chip module respectively, described communication unit includes being sequentially connected electrically Codec chip, DAA Circuits System and RJ11 interface, described Codec chip is connected with described main chip module, described dsp chip built-in circuit, described Codec built-in chip type circuit and described DAA Circuits System collectively form FXO interface, described FXO interface realizes and the connection of outside PSTN network.

Flush bonding processor voice gateways the most according to claim 1, it is characterised in that: described main chip module is PEF33616 processor.

Flush bonding processor voice gateways the most according to claim 2, it is characterised in that: described flash storage is Norflash memorizer.

Flush bonding processor voice gateways the most according to claim 3, it is characterised in that: the quantity of described communication unit is 8, and is connected to described PEF33616 processor.

Flush bonding processor voice gateways the most according to claim 1, it is characterised in that: also including ethernet transceiver, transformator and the RJ45 interface being sequentially connected electrically, described ethernet transceiver is connected with described main chip module.

Flush bonding processor voice gateways the most according to claim 1, it is characterised in that: also include that the USB being connected with described main chip module turns serial port chip.