Emergency Egress Locator

描述（由申请人提供）：该项目将开发和鉴定一种新的辅助技术，以帮助盲人。紧急出口指示灯（EEL）将在紧急情况下为出口提供指引。来自普通出口标志的照明将被调制以携带引导信息，同时仍然完全可见并且作为出口标志起作用。盲人将携带或佩戴接收器，该接收器处理来自出口标志的光学信号，并向盲人提供音频引导。EEL将是廉价和易于实施，因为它将使用现有的出口标志。EEL将与盲人旅行者一起进行演示和评估。它的辅助能力和与其他辅助技术的比较将被定量测量。开发的产品将包括一个镇流器，为出口标志提供EEL能力，以及一个接收器，为盲人用户提供紧急信息。

DESCRIPTION (provided by applicant): This project will develop and qualify a new assistive technology to aid persons who are blind. The Emergency Egress Locator (EEL) will provide guidance to exits under emergency conditions. The illumination from ordinary exit signs will be modulated to carry the guidance information while still being totally visable and functional as an exit sign. Persons who are blind will carry or wear a receiver which processes the optical signal from the exit sign and provides audio guidance to the person who is blind. EEL will be inexpensive and easy to implement because it will use existing exit signs. EEL will be demonstrated and evaluated with blind travelers. Its assistive capability and comparison with other assistive technologies will be quantitatively measured. Products developed will include a ballast to provide EEL capability to exit signs and a receiver to provide emergency information to users who are blind.