CN202978986U

CN202978986U - IP network-based text-to-speech public address system

Info

Publication number: CN202978986U
Application number: CN 201220667117
Authority: CN
Inventors: 何志勇; 刘伟军; 何星浩
Original assignee: Sichuan University of Science and Engineering
Current assignee: Sichuan University of Science and Engineering
Priority date: 2012-12-06
Filing date: 2012-12-06
Publication date: 2013-06-05
Anticipated expiration: 2022-12-06

Abstract

The utility model provides a speech synthesis public broadcasting system based on an IP network. The system includes a client management computer, a broadcast server, a network speech synthesis player and a loudspeaker. The client management computer, a broadcast server, and a network speech synthesis player The devices are connected to each other through the IP network, and the loudspeaker is connected to the network speech synthesis playback device. It has a broad market and development prospects, and can be widely used in broadcasting in public places such as stations, airports, docks, buildings, and large shopping malls. It has the advantages of long transmission distance, good sound quality, simple installation, and good scalability. The functions of global broadcast, regional broadcast and group broadcast make full use of existing network resources, avoid the trouble of repeatedly setting up lines, and realize the multi-network integration of broadcast and computer network.

Description

A kind of phonetic synthesis Public Address system of IP based network

Technical field

The utility model relates to a kind of phonetic synthesis (Text To Speech, TTS) broadcast system, relates in particular to a kind of based on IP(Internet Protocol) the phonetic synthesis Public Address system of network.

Background technology

Public broadcasting (Public Address) is the broadcasting of service to the public in limited scope, usually within being arranged on office, enterprise, school, community, mansion, supermarket and various venue, be used for releasing news with internal information, work and rest information, background music be provided and be used for paging and insert by force disastrous accident urgent broadcast etc., thereby become the indispensable part in various public places in town and country and modern metropolitan cities.

Traditional Public Address system generally adopts simulated audio signal, and broadcasting is subject to the factor impacts such as voltage, power, impedance, and transmission range is short, and frequency is low, easily is disturbed, and degree of intelligence is poor, and system extension is poor.Along with the development of IP network application technology, the network digital public broadcasting technology that traditional analogue audio frequency broadcast technology will progressively be transmitted by IP based network replaces.The digital audio public address system of IP based network transmits the form of audio signal with standard I P bag on IP network, adopt multi-path constant to realize intelligent management to radio program transmission and reception to technology such as addressing, can realize selecting all, part or specific region carry out packet-oriented broadcasting.The problems such as although the tonequality that exists in the solution conventional broadcast system is not good, easily be disturbed, maintenance management complexity, but still it is large to exist the voice data transmission data volume, propagation delay time is large, is not suitable for the problems such as slow network, thereby is mainly used in LAN broadcasting.

Summary of the invention

The purpose of this utility model is: for the problem of prior art existence, a kind of phonetic synthesis Public Address system of IP based network is provided, utilize existing IP network transfer instruction and text data, solved the cable wiring manufacture difficulty, the signal attenuation that long Distance Transmission audio signal causes, reach the large problem of transmission of audio data volume in IP network, and system management, maintenance, upgrading and stable aspect there is larger advantage.

The purpose of this utility model is achieved through the following technical solutions:

A kind of phonetic synthesis Public Address system of IP based network, it is characterized in that, this system comprises client-side management computer, broadcasting server, the synthetic playing device of voice-over-net and loud speaker, described client-side management computer, broadcasting server, the synthetic playing device of voice-over-net interconnect by IP network, and described loud speaker is connected with the synthetic playing device of voice-over-net.

Described broadcasting server, client-side management computer, the synthetic playing device of voice-over-net are connected to IP network by wired or wireless mode.

The synthetic playing device of described voice-over-net comprises IP network interface module, voice synthetic module, audio frequency processing and power amplification integration module and power module, described IP network interface module is processed with audio frequency by voice synthetic module and is connected with the power amplification integration module, described power module is processed with IP network interface module, voice synthetic module, audio frequency respectively and is connected with the power amplification integration module, and described audio frequency is processed and is connected with loud speaker with the power amplification integration module.

Described IP network interface module comprises data transmit-receive chip, microcontroller and serial bus interface, and microcontroller is connected with the data transmit-receive chip, and serial bus interface is connected with the data transmit-receive chip.

Compared with prior art, the utlity model has following advantage:

1, as a kind of new Public Address system, the phonetic synthesis Public Address system of IP based network has wide market and development prospect, can be widely used in the broadcasting of the public arenas such as station, airport, harbour, mansion, megastore, has long transmission distance, acoustical quality is good, install simple, the advantages such as favorable expandability, also can realize simultaneously overall broadcasting, regional broadcast and multicasting function, take full advantage of conventional network resources, avoid repeating the trouble of the construction of line, realized many net unifications of broadcasting and computer network.

2, owing to adopting IP network to voice playing device transfer instruction and text data, solved traditional voice broadcasting cable wiring manufacture difficulty, the signal attenuation that long Distance Transmission audio signal causes, reach the large problem of transmission of audio data volume in IP network, and be easy to realize management to play content by IP network, the management of system, maintenance, software upgrading, availability, reliability and stable aspect larger advantage is arranged.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of the synthetic playing device of voice-over-net;

Fig. 3 is the course of work of the synthetic playing device of voice-over-net;

Fig. 4 is the process chart of broadcasting server.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

Embodiment

A kind of phonetic synthesis Public Address system of IP based network, as shown in Figure 1, this system comprises client-side management computer 1, broadcasting server 2, the synthetic playing device 3 of voice-over-net and loud speaker 4.Client-side management computer 1, broadcasting server 2, the synthetic playing device 3 of voice-over-net interconnect by IP network 4.Loud speaker 4 is connected with the synthetic playing device 3 of voice-over-net.Broadcasting server 2, client-side management computer 1, the synthetic playing device 3 of voice-over-net are connected to IP network by wired or wireless mode, wherein Wired access mode comprises wired ethernet access, optical fiber access, the access of public's Packet Based Network, ADSL access etc., and wireless access way comprises the packet switching that wireless lan (wlan), GPRS, CDMA, TD-SCDMA, CDMA2000, WCDMA etc. provide.

Voice-over-net synthesizes playing device 3, as shown in Figure 2, comprises IP network interface module 31, voice synthetic module 32, audio frequency processing and power amplification integration module 33 and power module 34.The input of voice synthetic module 32 is connected with IP network interface module 31, and output is processed with audio frequency and is connected 33 with the power amplification integration module; Power module 34 is processed with IP network interface module 31, voice synthetic module 32, audio frequency respectively and is connected with power amplification integration module 33, is responsible for the power supply supply of each several part in device.

IP network interface module 31 comprises data transmit-receive chip, ICP/IP protocol stack, microcontroller and serial bus interface, and microcontroller is connected with the data transmit-receive chip, and serial bus interface is connected with the data transmit-receive chip; It can realize IP packet and RS232 interface, RS485 interface, I ²C interface, SPI interface serial data exchange.Voice synthetic module is commercially available.Audio frequency is processed and the module of power amplification integration module for audio process and power amplifier are integrated.

The course of work of the synthetic playing device of the voice-over-net in the phonetic synthesis broadcast system of IP based network is the synthetic playing device 3 of voice-over-net and broadcast message playlist that 1 login broadcasting server 2 management of client-side management computer connect as shown in Figure 3; Be distributed in and initiatively set up TCP with broadcasting server 2 after synthetic playing device 3 starts of voice-over-net of different geographical and is connected, after the registration ID code that it sends is broadcasted server 2 and receives, automated validations are registered; Simultaneously, broadcasting server 2 adds it subregion or grouping management and monitors its operating state; Then, broadcasting server 2 is according to the text data of broadcast schedule based output order and broadcasted content; The synthetic playing device 3 of voice-over-net receives and resolves the data of receiving, carries out the associative operations such as phonetic synthesis, and to loud speaker 4 output voice signals, backward broadcasting server 2 passback state informations finish playing.

The course of work of the broadcasting server in the phonetic synthesis broadcast system of IP based network is opened listening port for: broadcasting server 2 starts after completing as shown in Figure 4, waits for the TCP connection request that the synthetic playing device 3 of voice-over-net is sent by IP network; After connecting authentication and passing through, to the monitoring state of the synthetic playing device 3 of voice-over-net and manage playing plan, if playing plan is arranged, phonetic synthesis instruction and text data are issued phonetic synthesis playing device 3 by IP network and play.

The above is only preferred embodiment of the present utility model; not in order to limit the utility model; should be pointed out that all any modifications of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection range of the present utility model.

Claims

1. A public broadcasting system based on IP network speech synthesis is characterized in that the system includes client management computer, broadcast server, network speech synthesis player and loudspeaker, and described client management computer, broadcast server, network voice The synthesized playback devices are connected to each other through the IP network, and the described loudspeaker is connected with the network speech synthesis playback device.

2. a kind of speech synthesis public broadcasting system based on IP network according to claim 1, is characterized in that, described broadcast server, client management computer, network speech synthesis player are connected to IP network by wired or wireless mode .

3. a kind of speech synthesis public address system based on IP network according to claim 1, is characterized in that, described network speech synthesis playback device comprises IP network interface module, speech synthesis module, audio processing and power amplification integrated module and a power supply module, the IP network interface module is connected to the integrated audio processing and power amplification module through the speech synthesis module, and the power supply module is connected to the IP network interface module, the speech synthesis module, and the integrated audio processing and power amplification module respectively, The audio processing and power amplification integrated module is connected with the loudspeaker.

4. a kind of speech synthesis public address system based on IP network according to claim 3 is characterized in that, described IP network interface module comprises data transceiver chip, microcontroller and serial bus interface, microcontroller and The data transceiver chip is connected, and the serial bus interface is connected with the data transceiver chip.