Emergency Vehicle Alert System Phase 2
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Emergency Vehicle Alert System Phase 2
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-17
Emergency Vehicle Alert System Phase 2 written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-17 with categories.
The EVAS provides warning for hearing-impaired motor vehicle drivers that an emergency vehicle is in the local vicinity. Direction and distance to the emergency vehicle are presented visually to the driver. This is accomplished by a special RF transmission/reception system. During this phase the receiver and transmitter from Phase 1 were updated and modified and a directional antenna developed. The system was then field tested with good results. Static and dynamic (moving vehicle) tests were made with the direction determined correctly 98 percent of the time. Barr, Tom and Harper, Warren and Reed, Bill and Wallace, David Unspecified Center DIRECTIONAL ANTENNAS; DYNAMIC TESTS; EMERGENCIES; MOTOR VEHICLES; STATIC TESTS; WARNING SYSTEMS; RADIO FREQUENCIES; RECEIVERS; TRANSMITTERS...
Emergency Vehicle Alert System Phase Ii Report
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Author : Tom Barr
language : en
Publisher:
Release Date : 1993
Emergency Vehicle Alert System Phase Ii Report written by Tom Barr and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Emergency Vehicle Alert System Evas
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-02
Emergency Vehicle Alert System Evas written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-02 with categories.
The Emergency Vehicle Alert System (EVAS) program is sponsored by the NASA/MSFC Technology Utilization (TU) office. The program was conceived to support the needs of hearing impaired drivers. The objective of the program is to develop a low-cost, small device which can be located in a personal vehicle and warn the driver, via a visual means, of the approach of an emergency vehicle. Many different technologies might be developed for this purpose and each has its own advantages and drawbacks. The requirements for an acoustic detection system, appear to be pretty stringent and may not allow the development of a reliable, low-cost device in the near future. The problems include variations in the sirens between various types of emergency vehicles, distortions due to wind and surrounding objects, competing background noise, sophisticated signal processing requirements, and omni-directional coverage requirements. Another approach is to use a Radio Frequency (RF) signal between the Emergency Vehicle (EV) and the Personal Vehicle (PV). This approach requires a transmitter on each EV and a receiver in each PV, however it is virtually assured that a system can be developed which works. With this approach, the real technology issue is how to make a system work as inexpensively as possible. This report gives a brief summary of the EVAS program from its inception and concentrates on describing the activities that occurred during Phase 4. References 1-3 describe activities under Phases 1-3. In the fourth phase of the program, the major effort to be expended was in development of the microcontroller system for the PV, refinement of some system elements and packaging for demonstration purposes. An EVAS system was developed and demonstrated which used standard spread spectrum modems with minor modifications. Reed, Bill and Crump, Roger and Harper, Warren and Myneni, Krishna Marshall Space Flight Center NAS8-39383...
Emergency Vehicle Warning Systems
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Author : Arthur I. Rubin
language : en
Publisher:
Release Date : 1981
Emergency Vehicle Warning Systems written by Arthur I. Rubin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Emergency vehicles categories.
Emergency Vehicle Warning Devices
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Author : United States. National Bureau of Standards. Building Research Division
language : en
Publisher:
Release Date : 1972
Emergency Vehicle Warning Devices written by United States. National Bureau of Standards. Building Research Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Automobiles categories.
Minimum Performance Of The Warning Light System Used On Emergency Vehicles
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Author : Emergency Warning Lights and Devices Standards Committee
language : en
Publisher:
Release Date : 2016
Minimum Performance Of The Warning Light System Used On Emergency Vehicles written by Emergency Warning Lights and Devices Standards Committee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
This SAE Recommended Practice provides test procedures, requirements, and guidelines for the system of optical warning devices used on emergency vehicles. The document was revised to unify the terminology and test methods with other Emergency Warning Lights & Devices documents. Also, changes were made to remove the duplication of test requirements between this document and SAE J595 and SAE J845 such that EWD Lamp Assemblies tested under those standards may be more easily evaluated per this document. 2.1.1 - SAE Publications section revised to remove publications not referenced within document. Removed SAE J575 and SAE J1889. 3.4, 3.5, 3.6, 3.7, 3.8 - Terminology is revised to match adopted terms of SAE J845: Lower Level Optical Warning Devices, Optical Power, EWD Lamp Assembly, Optical Warning Device, and Upper Level Optical Warning Devices. 3.9 - Updated Figure 1 to remove split zones previously used for intermediate vehicle size. 4.1.3 - Removed along with Section 7. 5.1 - Reworded to standardize testing to SAE J845 methods. 5.2 - Photometric Tests section now refers to SAE J845 in order to standardize test setup, procedure, and process. 6.3.2, 6.3.2.3, 6.4 - For consistency with industry definitions and practices: Length specified for midship device requirement revised to 7.6 m (25 feet), (previously 6.7 m (22 feet)). 6.4.1.4/6.4.2.2 Steady burning statement moved from 6.2.1 in order to be more closely tied to the applicable test. 6.4.2 (Previous) - Intermediate Emergency Vehicle section removed. Industry practice is to utilize the large vehicle requirements for vehicles in the category. The adjustment in length and height in other sections allows many vehicles previously defined as Intermediate to be categorized as Small. 6.4.2 - Small vehicle height revised to 96 inches, was 82 inches. 6.4.2.2 "Level" column removed from Tables 3A and 3B, no longer applicable. 7 - Guidelines section removed as this is not industry practice and is unwieldy and difficult in actuality. "Optical Warning Device" is substituted for "Warning Device" throughout document. References to "Intermediate Emergency Vehicles" removed throughout document. Sections 5.2, 6.4, and 7 as well as Tables 3A and 3B renumbered due to edits above.
Public Safety Application For Approaching Emergency Vehicle Alert And Accident Reporting In Vehicular Ad Hoc Networks Using Wireless Access In Vehicular Environments
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Author : Harshad Phule
language : en
Publisher:
Release Date : 2012
Public Safety Application For Approaching Emergency Vehicle Alert And Accident Reporting In Vehicular Ad Hoc Networks Using Wireless Access In Vehicular Environments written by Harshad Phule and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Vehicular ad hoc networks (Computer networks) categories.
"Today's transport system has evolved from horse driven carriages and paved roads to a more complex road transport system made up of a variety of vehicles and other infrastructure, all put in place in order to support safe and efficient mobility of vehicles. The next step to further improve the transportation system of today is to make the vehicles and roadside infrastructure more intelligent by making them communicate with each other. This new ability will help find new solutions to current problems like traffic congestion, vehicular collisions, monitoring of adherence to traffic rules and alerting the drivers of hazardous conditions. Vehicular Ad-Hoc Networks (VANETs) are vehicle to vehicle and vehicle to road side infrastructure networks which make this possible by providing support to numerous applications aimed towards improving safety and driving experience on the road. A Public Safety VANET application adhering to the IEEE Wireless Access in Vehicular Environments (WAVE) standard and requirements laid down by National Highway Traffic Safety Administration (NHTSA) was designed, implemented, simulated and tested over a scalable open-sourced test bed aimed towards simulating a complete Intelligent Transportation System consisting of various applications operating together. The application supports two features: Approaching Emergency Vehicle Alert: An Approaching Public Safety Vehicle (Police/Fire/EMS) in a state of emergency will alert the vehicles in its path using the VANET, causing them to give way. Post-Crash Warning: A vehicle involved in a crash will immediately alert approaching vehicles about its current state using the VANET, helping them come to a halt at a safe distance, hence avoiding pileups. The performance and adherence to the requirements was analyzed, and a demonstration of the system was prepared to showcase the application in action."--Abstract.
Emergency Vehicle Warning Systems
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Author : Arthur I. Rubin
language : en
Publisher:
Release Date : 1981
Emergency Vehicle Warning Systems written by Arthur I. Rubin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Emergency vehicles categories.
Emergency Vehicle Warning Systems And Identification
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Author : David A. Green
language : en
Publisher:
Release Date : 1978
Emergency Vehicle Warning Systems And Identification written by David A. Green and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Emergency motor vehicles categories.
Monthly Catalogue United States Public Documents
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Author :
language : en
Publisher:
Release Date : 1995-10
Monthly Catalogue United States Public Documents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-10 with Government publications categories.