Campus PA system

Campus broadcasting system is an important tool for schools to disseminate information, carry out daily management, and conduct educational and teaching activities. Here is a detailed introduction to it:

System Composition

Audio Source Equipment

Includes radio receivers, CD players, tape recorders, microphones, etc., used to generate various audio signals such as music, news, notices, and speeches.

Signal Processing Equipment

Mainly consists of mixers and audio processors. Mixers are used to mix multiple audio source signals, adjust volume, balance timbre, etc.; audio processors can perform more complex processing on audio signals, such as equalization, compression, limiting, reverb, etc., to improve sound quality.

Power Amplifier

Amplifies the processed audio signals to provide sufficient power to drive the speakers, ensuring that the broadcast sound reaches an appropriate volume in all areas of the campus.

Transmission Lines

Responsible for transmitting audio signals from the signal processing equipment to the various speakers. Generally, audio cables are used as transmission lines, and in some larger campuses, optical fibers and other transmission media may also be used to reduce signal loss and interference during transmission.

Speakers

As the terminal equipment of the broadcasting system, they convert electrical signals into sound signals for playback. According to different installation locations and usage scenarios, there are various types of speakers, such as wall-mounted speakers and ceiling-mounted speakers indoors, and column speakers and lawn speakers outdoors.

Functional Characteristics

Timed Playback

Can preset different broadcast schedules according to the school's schedule and curriculum arrangements, automatically playing bells for class start and end, intermission music, eye exercises music, radio gymnastics music, etc., to achieve automated management of campus daily activities.

Zoned Broadcasting

Able to divide the campus into different areas, such as teaching buildings, office buildings, playgrounds, dormitory areas, etc., and broadcast independently or in groups to different areas according to different needs. For example, during class time, only notifications can be played in the teaching building without affecting other areas; during break time, radio gymnastics music can be played simultaneously in the playground and in front of the teaching building.

Emergency Broadcasting

Has the function of broadcasting in emergency situations, such as fires, earthquakes, and other sudden events. Through the emergency broadcasting system, alarm information and evacuation instructions can be quickly issued to all teachers and students to ensure their safety. Emergency broadcast signals usually have the highest priority and can automatically interrupt other ongoing broadcasts.

Remote Control

Through network technology, management personnel can remotely control the broadcasting system from anywhere in the school through computers or mobile devices, adjusting and setting parameters such as broadcast content, playback time, and volume, which is convenient and quick.

Application on Campus

Daily Teaching Management

Used to play bells for class start and end, course schedule notices, exam arrangements, etc., helping teachers and students arrange teaching activities reasonably and maintaining the teaching order of the campus.

Propaganda and Education

Can play news, reports on campus cultural activities, safety education knowledge, mental health education, etc., regularly enriching students' extracurricular lives, broadening their knowledge, and cultivating their comprehensive qualities.

Activity Organization

During large-scale events such as sports meets, artistic performances, opening ceremonies, and graduation ceremonies held in schools, it serves as an on-site sound reinforcement device, ensuring that the sound at the event site is clear and loud, allowing all teachers and students to clearly hear the event content and on-site commentary.

Emergency Command

In case of emergencies such as natural disasters and campus safety accidents, the campus broadcasting system can quickly become an important tool for emergency command, promptly conveying emergency notices and command information, guiding teachers and students to take the correct response measures, and ensuring the safety and stability of the campus.