Controller for In-Vehicle Siren Amplifier

Abstract

This article is a controller for an in-vehicle siren amplifier that amplifies sirens and warning voices mainly emitted by automobiles, especially emergency vehicles such as road maintenance vehicles and fire trucks during emergency driving. By operating the switch appearing at the lower front part of this article, sirens and voice messages pre-registered in the connected in-vehicle siren amplifier are amplified outside the vehicle, and at the same time, the warning lights operate. The switch displays appearing at the upper front part are function explanation parts of the switches located at their respective lower parts. The volume knob at the lower right front part is used for adjusting the volume when amplifying voice messages, and the operation information is displayed on the operation display part above the volume knob. The operation display part appearing at the lower left front part indicates the operation states of the microphone, voice input, etc.

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