Sanling IP network broadcast system is based on a set of audio amplification system of IP network transmission, it can be used in the same segment of the LAN, the LAN inter gateway or Internet network. The good performance of the network server and the network adapter hardware combined with software is stable and reliable guaranteethat IP network broadcasting. IP network broadcast system is composed of IP network broadcast control center(software or hardware host), IP network adapter, IP network audio terminal, constant voltage power amplifier,loudspeaker, sound box, sound column etc.. The system uses 32 bit ARM processor speed and a 16 bit DSPprofessional audio processor, classic audio power amplifier, low delay (0.1s) good sound quality (20-16KHz), datatransmission network to support a variety of audio formats (MP3, MP2, AAC, WAV), improve the ability to adapt tothe network, and real-time coding, audio support with: direct cross gateway and the core routing switch function,supports Internet radio, and upgrading the system can realize the fire linkage, fire strong cutting function.

Traditional broadcast, audio or FM commonly used method. Effect of audio broadcast by the voltage, power,resistance and other factors, short transmission distance, low frequency, vulnerable to interference, bad system expansibility. FM radio noise is introduced in the modulation and demodulation, aging equipment, frequency shiftcan lead to signal distortion. Control of the intelligent broadcast audio and FM transmission based ontransmission mode, subject to restrictions, only to partition, packet mode to realize the control. The lack of independence of the program source, causes the broadcast function can not satisfy the application requirementof individuation. IP network broadcast to solve the transmission distance existed in the traditional broadcasting system is short, quality, maintenance and management of complex problems such as poor performance,interaction.

IP network radio can existing computer network construction based on, does not need separate wiring installation,IP network transmission based on radio programs, each point can have their own independent radio programs,and provides a possibility of introducing daily radio broadcast. Audio frequency is different from the traditional and the control of the intelligent broadcast, is truly pure digital network broadcasting. Application in network construction, not only realize audio broadcast, video monitoring, computer network of more than one network, thepersonalized, intelligent product design, the long-term stay in the concept of the network and achieve practicalitypurpose.

The general local area network bandwidth is 100Mbps or 1000Mbps, according to each program to calculateavailable bandwidth of 0.1Mbps, Si dozens or hundreds of sets of programs. In practical application, may not needhundreds of sets of programs at the same time transmission, just by simple calculation, we can see that the current network environment is a big margin, audio transmission conditions on the network has matured. No matter you broadcast in where, what kind of building structure of the network, as long as the basic protocol ofTCP/IP protocol based on network, can realize the network broadcast, widely used in: University, middle and primary schools, Intelligent Building, highway, station, shopping malls, large and medium-sized factories and enterprises......

The digital IP network broadcast has the most notable characteristic

- digital transmission

IP network broadcast used the unique quality of CD data file format, the source into a data file transfer to the network adapter. Full digital transmission to avoid the traditional audio broadcasting signal attenuation and noise,provide high fidelity sound.

Personalized - terminal

IP data network based on IP network broadcast, each broadcasting network adapter can have independent IPaddress, can have a completely personalized program.

- front end network

IP network broadcast will be front audio source is extended to the entire network, program playing can be remotely controlled through the network, network management, and also can set different permissions for different users.

- broadcast automation

IP network broadcast can achieve automatic playback, and each program specifies the playback time, the server will automatically broadcast, and playing the content and scope of object can be arbitrarily specified.

- the operation of human nature

IP broadcast to provide personalized graphical menu interface, user-friendly operation, easy and simple, specificand practical, and improves the use efficiency.

- Application of intelligent

IP radio has many intelligent, can realize recording, transmission, lists such as loop speech feature in thebroadcast process; also can realize the timing setting, implementation of the broadcasting automatically broadcast; and be able to remote layout, maintenance, management.

Simple - Engineering

IP network broadcast engineering is simple, for now a LAN set every IP broadcast, only need to add abroadcasting network adapter can be installed, if not to build the network, data network engineering quantity is relatively simple, only need to laying cable can be, once the construction, broadcasting system and computer network system can be shared, reduce multiple repeated construction.

- system zero maintenance

IP network broadcast in physics and network sharing, so no additional maintenance work in addition to networkmaintenance. In application, the system can set independent segment and computer systems division, thebroadcasting network adapter program of embedded system cured, not infected by virus. The whole system is stable and reliable, the basic no maintenance work.

Sanling IP network broadcast system function

Paging function

Computer to a plurality of terminals, partition, the region call; at the same time, desktop microphone type terminalbut also to other terminal, partition, the region (excluding the terminal) call.

Timing program broadcast

Each network adapter IP broadcast network are independent of the IP address, can separate the receiving serverpersonalized timing broadcast programs, timing broadcast operation, can also through the computer set the upload programs on the internet.

Leadership Network

IP broadcast network can realize online speech without leadership, leadership to broadcast center, through anyconnection with the server computer system, can realize the remote computer via a microphone speech, can on the whole region, partition, packet speech.

Online radio broadcast

IP network broadcast via internet radio software can be received Internet network radio program is converted intodata format of IP radio network, network voice terminal real-time playback, such as American VOA, BBC, CNN and other domestic special language radio etc..

Real time audio mining sowing

IP broadcast real-time recovery multicast function, can be occupied, the tape recorder cassette: Radio, CD player,MP3 player, microphone shows real-time acquisition of real-time compressed into high quality data stream to the server, and can be requested simultaneously broadcast to the specified network adapter, used in externalprograms broadcast radio spots and notice.

Automatic music bell

Music tone IP broadcast can set personalized, automatically according to the arrangement good timetable play ring, spring and autumn schedule can be in accordance with the automatic adjustment, and provide the sunny or rainy days, holidays, special configuration options.

Free on demand

Through the remote control in the distribution network adapter for each point to complete any on-demand audio in the server database. The operation is simple and convenient, only need to use the infrared remote controller,select the program content corresponding, the playback.

Audio triggering device

The network adapter IP broadcast network, providing audio interface with trigger or trigger power. Sound andmusic access network adapter's broadcast, can according to the speech signal with, power supply automatic switching power amplifier or active speakers, or other equipment linkage normal broadcast.

Audio material making

It can realize digital material editing, mixing, fade, noise elimination, speed changing function.

Digital audio library

The system resources of servers can store thousands of hours of music programs or voice programs. The user can change the server storage space or extended according to the actual situation, and improve the system performance.

Fire alarm broadcasting

Combined with the fire intelligent interface receives fire short-circuit signal, alarm mode preset in the server software, can fire linkage function.

Broadcast monitoring

The system can set arbitrary network adapter is used as the system monitoring, to achieve single point selectionfunction of monitor.

Broadcast mode and adjust the volume

System for playing every function is a regulatory function program broadcast mode and the size of the volume.