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METHOD AND SYSTEM FOR STREETLIGHT EVACUATION GUIDANCE

IP.com Disclosure Number: IPCOM000243652D
Publication Date: 2015-Oct-07
Document File: 7 page(s) / 90K

Publishing Venue

The IP.com Prior Art Database

Related People

Chuck Byers: AUTHOR [+4]

Abstract

Mechanisms and systems are provided to control networks of streetlights and other smart highway instruments using so called Fog computing techniques to provide evacuation instructions to car drivers and or pedestrians in case of an emergency The lights are blinked in a sequence that moves in waves down the roadway parallel to the preferred traffic movement direction

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METHOD AND SYSTEM FOR STREETLIGHT EVACUATION GUIDANCE

  AUTHORS: Chuck Byers Gonzalo Salgueiro

 Joe Clarke Carlos Morales

CISCO SYSTEMS, INC.

ABSTRACT

    Mechanisms and systems are provided to control networks of streetlights and other smart highway instruments using so-called "Fog" computing techniques to provide evacuation instructions to car drivers and/or pedestrians in case of an emergency. The lights are blinked in a sequence that moves in waves down the roadway, parallel to the preferred traffic movement direction.

DETAILED DESCRIPTION

    Dense urban environments pose severe challenges in roadway congestion and traffic control. These challenges are aggravated in unusual or emergency circumstances, for example, if a road is closed or a mass evacuation of a populous region is necessary due to some natural or man-made disaster. Smart roadway systems are using Internet of Everything (IoE) techniques to improve traffic control by giving detailed instructions on which way to go on roadside digital signs or in-vehicle navigation displays. However, no signs may exist in effected areas and many drivers and pedestrians may not be able to access a smart highway infrastructure such as Vehicle-to-Infrastructure (V2I) messages needed to receive these instructions. In large-scale emergencies, panic and gridlock could cost many lives.

    The methods and systems for streetlight evacuation guidance described herein use existing networks of streetlights, traffic signals, message boards, etc. to provide easy to understand directional guidance. Motorists, cyclists and pedestrians (even those that do not have access to the "smart" highway infrastructure) can follow the intuitive sequential patterns this system creates on the roadside lighting infrastructure, and be guided in the

Copyright 2015 Cisco Systems, Inc.
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direction the authorities wish them to go. Widespread deployment of this system should greatly increase the usefulness of smart highways, increase the efficiency of evacuations and other emergency responses, and save lives.

    Existing evacuation systems are limited to indoor situations. These systems, however, do not use fog computing techniques to achieve the required timing precision and they do not integrate with smart highway and government emergency management systems.

    Existing systems do not include any precision control of light fixture timing, or the creation of sequential strobe networks out of arrays of streetlight fixtures. Simply using smart light fixtures with distributed programmable logic controllers (PLC) and/or cloud-based controllers will not produce the required timing precision. The use of Fog computing techniques enables very precise sequential patterns. Without this precision, if a subset of fixtures incur extra network or control message processing delay (100-200 milliseconds is a common Cloud latency), their lights may flash out of sequence, confusing the observers, and perhaps directing some of them in wrong d...