Public Address System
▍System features
● | Automatic Volume Control Function: In crowded and noisy applications, the noise detectors can be installed to automatically detect the environmental noise and the volume of broadcasting can be adjusted automatically to ensure the clarity of broadcasting sound. |
● | Delayed broadcasting function: through the pre-configuration of delayed broadcasting function, delayed broadcasting is carried out first in case of fire alarm, so that managers can confirm the fire alarm signal, and then carry out emergency broadcasting to avoid panic caused by misoperation of broadcasting system. |
● | Automatic fault diagnosis technology: Self-diagnosis technology is used to identify all kinds of faults occurring during the operation of the system, such as main power supply fault, standby power supply fault, power amplifier circuit fault, power amplifier protection/power supply fault, software, communication fault, speaker line fault, etc. It can locate the faults and facilitate maintenance personnel to repair or replace the fault units in time. |
● | Automatic backup technology: The broadcasting controller, power amplifier and other core equipment can be configured by software as 1 main 1 standy or several main 1 standy mode. When the system detects the fault of the main power amplifier, it can switch to the standby device automatically |
● | One-click broadcasting technology: through the pre-configured one-click broadcasting function, we can realize one-click selection of the predefined combination area and improve the convenience of operation. |
▍Subsystems and main functions
OCC Systems | |
● OCC public address | ● Voice synthesis remote download |
● OCC monitoring | ● Text-to-Speech conversion |
● OCC network management | |
Station subsystems | |
● Station disaster prevention PA | ● Volume automatic regulation |
● Station monitoring | ● Redundancy automatic switching |
● Background music | ● Emergency public address |
● Multichannel broadcasting | ● Automatic announcement of train position |
● Priority function | ● FAS coordination broadcasting |
● Sequential power up | ● Interconnection with other PA systems in transfer area |
● Load zone protection | ● Station network management |
● PA prompt sound | |
Other options
