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The use of public broadcasting in five major areas
Created on Today
1. Public broadcasting system for large supermarkets and shopping malls
Under normal circumstances, the public broadcasting system of large supermarkets and shopping malls should have the function of a fire emergency broadcasting system in addition to the background music broadcasting function. Under normal circumstances, in addition to the background music broadcasting system function of playing background music, broadcast notifications, etc., the public broadcasting system can realize manual broadcasting of manual selection in the accident area when encountering a fire alarm.
In the public broadcasting system of large supermarkets and shopping malls, the program source is usually set to three: CD/DVD player, dual card recording station and broadcast paging microphone. The CD/DVD player is pre-loaded into the CD/DVD. All the tracks can be pre-cycled. The radio microphone is a desktop gooseneck microphone. It is easy to operate and has a built-in bell generator. It can emit a crisp bell before speaking to remind the audience. Mainly used for broadcast notifications.
Many large supermarkets and shopping malls are single-storey buildings. According to the requirements of the Chinese fire protection system, multiple fire shutter doors must be installed in the interior areas of supermarkets and shopping malls. When designing public broadcasting systems for large supermarkets and shopping malls, they must also comply with relevant regulations according to supermarkets and shopping malls. The internal fire zone is broadcasted.
Second, the hospital public broadcasting system
The public broadcasting system of the hospital is a publicity, education and entertainment stage with many listeners and great influence. How to effectively apply and how to manage it effectively is a problem that needs to be solved. Usually, the hospital's broadcasting system must have a dedicated staff to manage the broadcast equipment and play the work, regularly maintain the outdoor line, the workload is large, and it is not convenient for the unified management of the superior authorities.
The audience of modern hospitals ranges from young children to the elderly. In different regions and at different times, different program requirements may need to be broadcast. The unified production and reasonable management of each broadcast network source have varying degrees of demand. For example, if different programs (health care common sense) and individuals want to listen to different programs in different wards, rooms, or beds, they can implement separate controls as needed.
Third, hotel, hotel public address system
For a hotel, a hotel public address system, and a room broadcast system are indispensable. The room broadcasting system usually needs to set up multiple channels of broadcast signals for guests to choose from. For star-rated hotels and hotel rooms, there are 2 sets of broadcast signals and 4 sets of broadcast signals. The ways to realize room broadcasting are as follows:
(1) In the computer room, multiple sets of broadcast program signals are mixed and amplified by multiple radio frequency modulators, incorporated into the cable TV redundant channel, and transmitted with the cable TV cable for transmission; at the terminal, the guest selects to listen to the broadcast program through the television.
(2) In the computer room, multiple sets of broadcast program signals are mixed and amplified by multiple radio frequency modulators, and one RF cable is used for signal transmission; at the terminal, the guest selects to listen to the radio program through the FM receiver provided in the control panel of the bedside table of the guest room.
(3) In the machine room, a set of broadcast program signals is amplified by a power amplifier, and multiple sets of broadcast program signals are transmitted by the multi-core cable; at the terminal, the guest selects to listen to the broadcast program through the control panel of the bedside table of the guest room.
(4) In the computer room, multiple sets of broadcast program signals are mixed and amplified by the RF debugger, preset address codes, and signals are transmitted by using one RF cable; at the terminal, the guest selects through the FM receiver built in the control panel of the bedside table of the guest room. The address code listens to the radio program.
Fourth, the campus public address system
The campus broadcasting system is a widely used broadcasting system. Campus broadcasting, as a tool for school information dissemination, has gone through decades of history. With the development of science and technology, from electronic tubes to integrated circuits, from phonographs to CDs, it has experienced several revolutions. However, its equipment technology level and grades are uneven, basically based on constant pressure amplifiers plus terminal audio or tweeters, and a single-channel audio signal transmission mode, which has many shortcomings in actual use and work. With the continuous maturity of digital broadcasting technology in campus broadcasting in recent years, it has unparalleled advantages over traditional broadcasting methods, and its functions are constantly improving. It has gradually replaced traditional broadcasting methods and become the main implementation of current campus broadcasting.
The new campus broadcasting system provides intelligent centralized management and control of various peripherals (such as recorders, CDs, MDs, radios, and digital audio hard disks). The program content, program length, editing, and broadcasting can be performed according to the requirements of the school. The time is set in advance, and the PC on duty computer can automatically manage the whole process of the broadcast, and automatically broadcast according to the set program to ensure the integrity, accuracy and punctuality of the program, thereby preventing the phenomenon of interrupting the broadcast for no reason. Conventional radio programs, such as radio gymnastics, songs, music ringing, etc., can be broadcast unattended. The system has very high reliability, the system transmission network signal noise is low, there is no power matching and voltage matching requirement in the system network, the single audio fault does not affect the whole system work, and the whole machine automatically turns off without signal. After the start signal is received or the power-on command is received, the sound is automatically turned on to achieve unattended operation.
Fifth, the subway public broadcasting system
The subway broadcasting system is a special subsystem within the subway communication system. It plays a crucial role in subway operations, passenger transportation services, disaster prevention and rescue, and equipment maintenance. In various areas of a subway station, different service announcements and related precautions are broadcast for ticket sales, ticket checking, platform stops, waiting, boarding, transfers, and more. These broadcasts aim to provide diverse services, maintain station order, and effectively guide passengers. They also include announcements for station staff, such as "take the bus first and then back," to shorten train stop times, ensure punctuality, and create favorable conditions for other tasks. In depots, tunnel sections, and other operational areas, the system provides safety reminders and notifications for dispatch commands, vehicle dispatch, vehicle commissioning, equipment maintenance, line maintenance, power supply and removal, and equipment power-up and power-down. During major events, festivals, or other occasions that cause sudden changes in subway passenger flow, it serves as an essential tool for emergency passenger transport organization. In the event of an accident, it is a vital means for emergency evacuation and disaster relief command. By providing functionally advanced working tools for subway passenger transport, traffic management, disaster prevention, equipment maintenance, and other departments, it enhances the quality of metro passenger services and the ability to handle emergencies.
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