Train PA system volume adjustment device and train PA system

Abstract

The invention discloses a train broadcast volume dynamic adjustment device and a train broadcast system. The train broadcast volume dynamic adjustment device comprises at least one sound sensor, a balun, a processor and a voltage control adjustor, wherein the sound sensor is used for collecting environmental acoustic information in a current train compartment, the balun is coupled to the sound sensor, and is used for converting the collected environmental acoustic information into single-ended signals, the processor is used for receiving the processed environmental acoustic information and broadcast audio information, and generating control signals on the basis of the received information, and the voltage control adjustor is used for adjusting the broadcast audio information received by the voltage control adjustor in a dynamic mode on the basis of the received control signals, so that the broadcast audio information is kept to be at the volume level corresponding to the control signals. According to the train broadcast system, the volume of the train broadcast can be convenient and rapid, the volume of the broadcast can be adjusted according to the environmental acoustic information in the train compartment, operation safety is ensured to the great extent, and comfort of passengers is improved.

Description

technical field [0001] The invention relates to the field of audio broadcasting, in particular to a volume adjustment device for a train broadcasting system and a train broadcasting system. Background technique [0002] The volume adjustment operation of the existing train broadcasting system is inconvenient, and the volume parameters are mainly modified through the broadcasting equipment maintenance software (such as figure 1 shown), the position of the volume adjustment knob on the preset broadcast equipment (such as figure 2 shown) or place the volume adjustment knob in the compartment (such as image 3 Shown) and other ways to adjust the volume of the car radio. [0003] Specifically, the volume adjustment of existing trains is divided into the following three methods: (1) Modify the software volume setting parameters of the host equipment and the carriage equipment through the dedicated PC broadcast maintenance software; (2) Adjust the hardware-based The volume adju...

AI Technical Summary

Problems solved by technology

[0005] 1) It is necessary to manually set and maintain the broadcast volume preset parameters according to changes in the operating environment, which increases the difficulty of labor cost operations;

[0006] 2) The volume preset value of each car is roughly the same. Once the setting is completed, the car radio volume cannot be dynamically adjusted according to the train running noise and the noisy human voice in the car. It may be difficult to hear the train due to the high ambient noise The broadcast situation has affected the normal release of train operation information and operational safety, and there are also practical problems such as inability to hear the broadcast when the ambient noise is loud or the volume is too loud in quieter conditions, which has affected the train to a considerable extent. Operational Safety or Passenger Comfort

[0007] 3) Due to the need for manual participation, the existing adjustment method is not convenient

Images