Patent ID: 8928492
Filing Date: 2015-01-06
Classification: G08B,G08G

Abstract:
1. A system to provide a warning to a person in a vehicle when the vehicle is proximal or in a danger area to an emergency services vehicle or a hazard area, the system comprising a. an emitter on the emergency services vehicle or in or adjacent the hazard area; b. a radio associated with the vehicle and a receiver sub-unit to receive a signal from the emitter, and at least one speaker; of the vehicle; and c. a unit including d. a cancelling switch to cancel the warning signal and return the speakers to normal operation even if the emitter is still within proximity to the vehicle to prevent the warning signal from being reactivated by the emergency services vehicle or whilst within or adjacent to the hazard area but allowing warning signals to be produced based on a radio transmission from the emitter on a second or further emergency services vehicle or in or adjacent to a second or further hazard area.