IP Network Broadcasting System Solution For Campus

Campus Requirements:

1. It has functions such as manual broadcasting, scheduled broadcasting, temporary broadcasting, terminal configuration, terminal status viewing, terminal work monitoring, and establishment of program library. It also supports fire-fighting linkage broadcasting, wireless broadcasting and other external functions; the system can be extended to support remote on-demand terminals. , the intercom and broadcast functions of the paging terminal.

2. The principal and director do not need to go to the computer room, they can publish the broadcast management information of the school in their own office.

3. School broadcasts should be able to achieve independent or sub-regional playback in sub-regions and multi-regions, which can be easily completed through software operations.

4. School radio should have functions such as software programming for timed tasks, automatic operation of system servers, playing different programs at different time periods, automatic program playback, and automatic stop, etc., to meet the automatic operation requirements of unattended school systems.

The specific design points are as follows:

1. Automatic music ringing and unattended playback The campus IP network broadcasting system can set the summer (autumn) and winter (spring) timetables according to the school's work and rest schedules in different seasons, and realize the arrangement according to the preset work and rest timetables. Regularly ring the bell, play eye exercises, broadcast gymnastics, etc., to meet the teaching management needs of the automatic operation of the school's unattended system.

2. Remote sub-control broadcast - key partition to open the principal and director do not need to go to the broadcast room, they can broadcast through the sub-control equipment in their own office. That is, it can realize timed automatic playback and manual emergency broadcast through the sub-control computer, and audio, broadcast (external audio, U disk MP3 file) and manual speech can be performed through the touch screen microphone. The Beijing touch screen microphone has multiple function shortcut keys, which can quickly start and control the relevant partitions (any combination of partitions can be carried out according to grades and functions) broadcast with one key.

3. External audio source collection and selected terminal for playback

The system supports playing foreign language listening CDs, teaching CDs, U-disk MP3 files, etc. through a DVD player, supports playing local radio station signals through a digital tuner, and supports notification, speech and broadcast through a microphone. It can collect external audio signals such as DVD players, digital tuners, and broadcasting microphones in real time, and specify a classroom, a group, a grade, a functional division or a unified-timed playback, and support manual collection and playback of external audio sources.

4. Constant pressure backup for local sound reinforcement exams in classrooms

Each classroom is equipped with one main and auxiliary network speakers, with CD-level sound quality and high-fidelity voice restoration. Each speaker has an independent IP address, which can accept broadcast instructions from the broadcast center and sub-control center, and automatically select playback according to the set permissions. Scalable constant pressure backup broadcast, support 110V analog constant pressure broadcast signal input, with automatic switching function of main and standby fault detection. The classroom network speakers can be connected to multimedia equipment (computers, teaching-body machines) audio sources for teaching audio amplification. Teachers can wear wireless microphones in class and speak through Bluetooth microphones.

5. Broadcasting the whole school coverage can be set up with intercom terminals

Realize the coverage of the broadcasting system in the teaching building, laboratory building, student canteen, student dormitory, sports field, library, outdoor area, etc. without blind spots. Set up local insertion equipment in student canteens, student dormitories and sports grounds, and broadcast local audio broadcasts and vocal announcements to the broadcast terminals under the jurisdiction through microphones. An intercom panel can be set up in the principal's room, student dormitory, duty room, etc. Through the intercom panel, two-way voice calls can be made with the designated touch screen microphone, which is convenient for guests in the principal's room to notify visitors, students to contact the dormitory, and the duty room and the broadcast center. Or the back office supervisor can call two-way voice intercom.

6. Fire alarm linkage forced partition broadcast

The system is equipped with a fire signal acquisition interface, which is connected to the 0V/24V trigger signal of the fire center. When a fire emergency signal triggers the fire protection acquisition interface, the system automatically starts fire-fighting voice broadcast, and can realize the whole area or N+0, N+1 , N...N+ 5 adjacent layers alarm

Schematic diagram of IP network broadcasting system in campus

Advantages of IP network broadcasting system

1. More powerful functions

Each terminal can be independently controlled to play different content. Not only can it fully realize the functions of traditional broadcasting systems (such as: timing bells, zone play, fire alarm, etc.), but also have classroom terminal constant pressure backup, local sound reinforcement, Bluetooth lecture functions, and interactive terminal two-way intercom functions.

2. The system is more stable

The server and the broadcast control host provide double insurance. If one party fails, the other party can take over all terminals to ensure the normal operation of the basic functions of the system. Both the main control machine and the terminal use industrial-grade chips, work 24 hours a day, and are completely free from viruses. With mature Ethernet hardware, the entire system requires no additional line maintenance.

3. The sound quality is clearer

Due to the use of network transmission technology, the audio signal has no transmission interference and distortion. The MP3 compression algorithm is adopted, which occupies low network bandwidth (8k-128k) and can ensure high fidelity of sound quality. The output sound quality of classroom speakers is close to CD level, which can meet the requirements of high sound quality, such as listening playback of college entrance examinations and senior high school entrance examinations, and In the daily foreign language listening training in the classroom, every pronunciation can be clearly handled, and no longer troubled by ambiguous sounds.

4. The transmission is more unlimited

The audio transmission distance can be extended infinitely, and it can run on the LAN and Internet network across gateways, support a wide range of important applications, and centrally control the broadcast from the main campus to the campus to achieve fast and reliable information communication. Campus IP network broadcasting can achieve the purpose of broadcasting by transmitting audio signals through switches. It can realize timing or manual broadcasting, real-time acquisition of external audio sources, regular program playback, online speech by leaders, fire alarm trigger broadcasting, interactive terminal two-way intercom, etc. Function.