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ADDITION TO ACOUSTICAL AND OPTICAL TRAFFIC WARNING OF POLICE, FIRE BRIGADE AND AMBULANCE CARS

IP.com Disclosure Number: IPCOM000009531D
Original Publication Date: 1999-Sep-01
Included in the Prior Art Database: 2002-Aug-30
Document File: 1 page(s) / 65K

Publishing Venue

Motorola

Related People

Michael Weyrich: AUTHOR [+3]

Abstract

This paper describes an additional way of warn- ing other car drivers of the coming closer of police, fire brigade or ambulance cars.

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Developments Technical 0 M MOlOROlA

ADDITION TO ACOUSTICAL AND OPTICAL TRAFFIC WARNING OF POLICE, FIRE BRIGADE AND AMBULANCE CARS

by Michael Weyrich, Kerstin Harenberg and Horst Geib

ABSTRACT

  This paper describes an additional way of warn- ing other car drivers of the coming closer of police, fire brigade or ambulance cars.

INTRODUCTION

  Common known signals of police, fire brigades, etc. use only optical and acoustical signals.

PROBLEM(S) TO BE SOLVED

  Modem designed automobiles use high acousti- cal insulations against external noise. In addition the driver can be disctract by various devices as radio, mobile telephone as well as external environmental condition. Therefore drivers often recognize acousti- cal or optical signals of police cars, fire engines, ambulance or other task force vehicles very late. This leads to unnecessary dangerous situations or avoidable obstructions.

PROPOSED SOLUTION TO THE PROBLEM(S)

  Additional to the common signalling the task force vehicles must signal their coming closer with an further signalling mechanism. This can be done by the following possibilities:

  1. Every vehicle carries a RF receiver which can decode an unspecific pattern. After decoding the dri- ver can be warned properly by a signal inside of the vehicle. The receiver will be triggered by a transmit- ter in the task force vehicle.

  If the task force vehicle is in operation the trans- mitter sends periodical patterns. The transmitting power should sufficient to signal...