CN215186809U

CN215186809U - IP integrated service switch based on high-performance embedded platform

Info

Publication number: CN215186809U
Application number: CN202120704391.0U
Authority: CN
Inventors: 彭勇; 沈家祥
Original assignee: Shenzhen Laixun Communication Technology Co ltd
Current assignee: Shenzhen Laixun Communication Technology Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-12-14
Anticipated expiration: 2031-04-07

Abstract

The utility model discloses a IP integrated service switch based on embedded platform of high performance sets up at the quick-witted incasement of an industrial computer, including setting up the main control board in the industrial computer slot, still including the analog line interface board that sets up in the industrial computer slot, main control board and analog line interface board pass through the industrial computer bus and link to each other. In this embodiment, the host of the industrial personal computer supports the FXS interface module and the FXO interface module to integrate wireless signals, such as telephone, with voice communication into the company's data network.

Description

IP integrated service switch based on high-performance embedded platform

Technical Field

The utility model relates to a switch field, especially an IP integrated service switch based on embedded platform of high performance.

Background

With the popularization of Internet networks, VoIP technology capable of transmitting voice, video, and other services through an IP network has been rapidly developed. The VoIP technology is an environment which widely adopts Internet and global IP interconnection, mainly provides voice transmission service, completes voice connection between network coverage areas around the world, has lower voice communication cost and more convenient networking compared with the traditional global communication service, has very large market demand, can ensure that the VoIP technology is rapidly developed, and fully embodies the huge function and application potential of an IP data network.

Many companies find traditional telephone systems to be both expensive to maintain and limited in their ability to support employee distraction.

SUMMERY OF THE UTILITY MODEL

The utility model discloses IP integrated services switch based on embedded platform of high performance is a company telephone system based on IP, and this system can be completely with voice communication integrated to the data network of company to the unified voice and data network that can connect and distribute office locations and staff in all parts of the globe is established.

The utility model discloses a realize that the technical scheme that its technical purpose adopted is: the IP integrated service exchanger based on the high-performance embedded platform is arranged in a case of an industrial personal computer, and comprises a main control board arranged in a slot of the industrial personal computer and an analog line interface board arranged in the slot of the industrial personal computer, wherein the main control board and the analog line interface board are connected through a bus of the industrial personal computer.

Further, in the above IP integrated service switch based on the high-performance embedded platform: the master control board and the simulation line interface board support an FXS interface module and an FXO interface module; the FXS interface module is used for connecting a POTS telephone, and the FXO is used for connecting a POTS line of a primary PSTN device; each FXS/FXO module can support 4 lines, and one simulation line interface board supports at most 4 FXS/FXO modules.

Further, in the above IP integrated service switch based on the high-performance embedded platform: and double main control processing boards are adopted in the slots of the industrial personal computer.

Further, in the above IP integrated service switch based on the high-performance embedded platform: the slot of the industrial personal computer also comprises a wireless module interface board which is connected with the main control board by adopting a bus and comprises a voice interface part, an interface control part and control sequential logic adjustment;

the voice interface part mainly completes the conversion between PCM digital voice of the VOIP core interface unit and analog voice of the wireless module;

the interface control part mainly comprises an SPI-UART conversion chip and a CODEC IO control circuit;

the control time sequence logic adjusting part is used for completing SPI time sequence matching from the cpu SPI interface to the UART interface unit and time sequence matching from the VOIP core unit PCM interface to the CODEC PCM interface.

Further, in the above IP integrated service switch based on the high-performance embedded platform: the slot of the industrial personal computer also comprises 2G, 3G and 4G LTE module interfaces; the 2G, 3G and 4G LTE module interfaces are connected with the main control board by adopting an industrial control machine bus.

Further, in the above IP integrated service switch based on the high-performance embedded platform: and the industrial personal computer slot also comprises a PTT interface board for finishing interface processing of audio and control signals of a vehicle-mounted radio station, an interphone and a wired microphone loudspeaker.

Further, in the above IP integrated service switch based on the high-performance embedded platform: in the slot of the industrial personal computer, an E & M interface board for a telephone exchange and a general relay signaling technology on the PBX is also inserted.

In this embodiment, the host of the industrial personal computer supports the FXS interface module and the FXO interface module to integrate wireless signals, such as telephone, with voice communication into the company's data network.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

Fig. 1 is a schematic diagram of networking of each service interface of the IP integrated service switch in embodiment 1 of the present invention. Fig. 2 is a diagram of an interface board of an analog circuit in an IP integrated service switch according to embodiment 1 of the present invention. Fig. 3 is a diagram of a wireless module interface board in an IP integrated services switch according to embodiment 1 of the present invention. Fig. 4 is a structural diagram of an E & M interface board in an IP integrated service switch according to embodiment 1 of the present invention. Fig. 5 is a structure diagram of PTT interface board in the IP integrated service switch of embodiment 1 of the present invention.

Detailed Description

Embodiment 1, as shown in fig. 1, this embodiment is an IP integrated service switch based on a high-performance embedded platform, which is disposed in a chassis of an industrial personal computer, and includes a main control board disposed in a slot of the industrial personal computer, and further includes an analog line interface board disposed in the slot of the industrial personal computer, where the main control board and the analog line interface board are connected through an industrial personal computer bus.

The system hardware adopts a design of supporting double power supplies and double main control processing board hot backup, two power supply slots can adopt two power supply modes of single power supply and double power supply hot backup, wherein the double power supply backup can be alternating current-direct current backup, alternating current-alternating current backup and direct current-direct current backup, the system is provided with 2 main control processing board slots, the main control processing board supports an online hot backup function, and the double power supplies and the double main control hot backup fully meet the high-reliability redundancy design of the IP comprehensive multi-service switch.

The product adopts a new generation of CPU + DSP core processing chip and has stronger processing capacity, so that the integrated multi-service switch supports the Asterisk over Linux, and the system can provide extremely rich service processing capacity on the basis of an Asterisk platform.

The system adopts the on-line hot backup design of the double main control processing boards, so that the comprehensive multi-service switch supports the high-reliability redundancy design, and when any one main control processing board fails, the system can seamlessly switch the service to the other main control processing board.

The system supports 10 service slots, and 10 service slots can be combined and inserted with an analog line FXS/FXO interface board, a PTT interface board, a wireless module interface board and an E & M line interface board at will. The system is fully configured and maximally supports 160-path FXS/FXO interfaces, 80-path wireless module interfaces, 80-path E & M interfaces and 40-path PTT interfaces.

In this embodiment, the analog line interface board supports two interface modules, where FXS is used to connect a POTS telephone and FXO is used to connect a POTS line of a primary PSTN device. Each FXS/FXO module can support 4 lines, and one simulation line interface board supports 4 FXS/FXO modules at most, namely supports 16 lines of FXS/FXO modules at most and each single board. As shown in fig. 2.

E & M is a general trunk signaling technique used on telephone exchanges and PBXs. The signaling and voice relaying in E & M is separated, and the E & M signal defines a connection type between a relay circuit and a signaling unit, like a Data Communication Equipment (DCE) and Data Terminal Equipment (DTE) connection types. Typically the PBX belongs to the trunk circuit, while the E & M voice gateway, the telecommunication exchange CO, the gateway wall and the soft switch platform belong to the signalling unit. The PBX outputs a signal on the M line (M is Mouth, sent by the PBX) and receives a signal on the E line (E is Ear, received by the PBX). Therefore, from the perspective of the E & M voice gateway, the E & M voice gateway receives M signals from the PBX and transmits E signals to the PBX.

Each E & M interface board supports 2E & M modules, each E & M module supports 4 paths of E & M circuits, namely a single board supports at most 8 paths of E & M circuits, E & M circuit voice supports two circuit modes of 2-line audio and 4-line audio, and E & M circuit signaling supports multiple signaling standards. The method has good compatibility when being butted with other switches and gateways. As shown in fig. 4.

The PTT interface board is used to complete interface processing of audio and control signals of the car radio, the intercom, and the wired microphone speaker, as shown in fig. 5, each board supports four PTT interfaces, that is, one board can support four car radio controls and access of audio signals. The front panel four groups of 3.5MM standard audio interfaces can be used for inputting and outputting audio signals of a wired microphone and a loudspeaker. The single board adopts a codec chip and an audio operational amplifier circuit with high performance and supports the adjustment of the volume input and output amplitude. The PTT input signal supports two modes of level mode PTT effective detection and audio signal input detection, and can be well adapted to vehicle-mounted radio stations with different specifications.

The module interface unit adopts a pluggable buckle plate design, a single buckle plate supports two paths of 2G, 3G and 4G LTE modules with the same standard, the whole system can be provided with GSM, CDMA, WCDMA and 4G LTE modules by taking 2 paths as a unit, the modules with different standards can be used in a mixed mode, and the capacity of a single plate is 2-8 paths. Because the module buckle adopts the design of small-size pluggable, the selection of wireless module like this can select for

use

2G, 3G, 4G module according to the product update quick update system of wireless market module supply.

As shown in fig. 3, the control and voice processing unit of the wireless module interface board mainly comprises three functional parts, namely a voice interface part, an interface control part and a control time sequence logic adjusting part, wherein the voice interface part mainly completes the conversion between PCM digital voice of the VOIP core interface unit and analog voice of the wireless module. The wireless module differential audio signal processing circuit mainly comprises an operational amplifier circuit, a CODEC audio processing circuit and a PCM time sequence logic circuit, wherein the operational amplifier circuit completes the matching of a wireless module differential audio signal to a single-ended audio signal of a CODEC chip and the adjustment of the amplitude of the audio signal, the CODEC audio processing chip completes the coding and decoding processing of a PCM digital audio signal to an analog single-ended audio signal, a digital filter with adjustable software and a gain adjusting range as large as 12dB are arranged in the CODEC chip, a PCM interface can support various speeds, and the scheme adopts an 8.192M interface speed mode.

The interface control part mainly comprises an SPI-UART conversion chip and a CODEC IO control circuit, wherein the SPI-UART conversion chip is used for completing the conversion from a CPU SPI to a UART interface of a wireless module so as to realize the AT instruction access from the CPU to each wireless module, a UART serial port supports multiple rate modes and can be matched with wireless modules with different rates, and the IO control circuit of the CODEC chip is used for controlling the on-off and state monitoring of the wireless modules. The control time sequence logic adjusting part is used for completing SPI time sequence matching from the cpu SPI interface to the UART interface unit and time sequence matching from the VOIP core unit PCM interface to the CODEC PCM interface.

In this embodiment: the IP integrated service switch develops and customizes the Asterisk over Linux on the basis of an AUDIO CODE high-performance ARM + DSP processing platform on the basis of finishing the function of the traditional basic VoIP so as to provide various rich and powerful value-added service processing capabilities. The Asterisk has powerful functions, can realize all basic functions of the VOIP PBX and the VOIP gateway in a pure software mode, greatly reduces the hardware cost, provides rich interfaces, can be conveniently managed in a WEB mode, is easy to expand new services, and ensures that the architecture of the enterprise VOIP system is simpler; asterisk has great flexibility, and special API interfaces surround the PBX core system, which handles the inter-connection between the PBX interiors. Each part is an abstraction from the protocol, code, or hardware interfaces used by the internal phone that make Asterisk a perfect combination with any hardware and technology, as well as future hardware and software technologies. The advantages of the Asterisk system and the architectural characteristics of the Asterisk system make the Asterisk system have a plurality of advantages when constructing a small-and-medium-sized enterprise VOIP system.

Most similar products in the industry have single device interfaces, for example, some of the similar products support E1 and simulate FXS \ simulate FXO, and wireless devices often do not support wired line interfaces, and usually, the device stacking mode is adopted to meet the requirements of clients on the types of the interfaces, and the products of our department can simultaneously support digital PCM \ simulate FXS \ simulate FXO \ wireless GSM, CDMA2000, WCDMA, TDSCDMA, 4G LTE \ PTT \ E & M \ SIP relay or SIP extension, so that the comprehensive interfaces greatly enrich the application occasions of the products, can greatly improve the maintainability of the system, and have good cost performance advantages.

Most similar products in the industry support single signaling, but the products of me support multiple signaling and protocols, such as 5 common signaling and 1 protocol of SS7\ PRI \ V5.2\ R2\ q.sig \ SIP, and simultaneously support multiple signaling protocols on the same equipment, so that the construction fund of a user system can be saved, and the system service opening efficiency of a user can be improved.

Claims

1. The utility model provides a IP integrated service switch based on embedded platform of high performance, sets up in the quick-witted incasement of an industrial computer, including the main control board who sets up in the industrial computer slot, its characterized in that: the main control board is connected with the simulation line interface board through an industrial personal computer bus.

2. The IP integrated services switch based on high performance embedded platform according to claim 1, wherein: the master control board and the simulation line interface board support an FXS interface module and an FXO interface module; the FXS interface module is used for connecting a POTS telephone, and the FXO is used for connecting a POTS line of a primary PSTN device; each FXS/FXO module can support 4 lines, and one simulation line interface board supports at most 4 FXS/FXO modules.

3. The IP integrated services switch based on high performance embedded platform according to claim 1, wherein: and double main control processing boards are adopted in the slots of the industrial personal computer.

4. The IP integrated services switch based on high performance embedded platform according to claim 1, wherein: the slot of the industrial personal computer also comprises a wireless module interface board which is connected with the main control board by adopting a bus and comprises a voice interface part, an interface control part and control sequential logic adjustment;

5. The IP integrated services switch based on high performance embedded platform according to claim 1, wherein: the slot of the industrial personal computer also comprises 2G, 3G and 4G LTE module interfaces; the 2G, 3G and 4G LTE module interfaces are connected with the main control board by adopting an industrial control machine bus.

6. The IP integrated services switch based on high performance embedded platform according to claim 1, wherein: and the industrial personal computer slot also comprises a PTT interface board for finishing interface processing of audio and control signals of a vehicle-mounted radio station, an interphone and a wired microphone loudspeaker.

7. The IP integrated services switch based on high performance embedded platform according to claim 1, wherein: in the slot of the industrial personal computer, an E & M interface board for a telephone exchange and a general relay signaling technology on the PBX is also inserted.