RDE-FRI : Indoor/Outdoor Blind Navigation and Awareness System for Blind Students

RDE-FRI：盲人学生室内/室外盲人导航和意识系统

• 批准号: 0435676
• 负责人: Abdelsalam Helal
• 金额: $ 20万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-15 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0435676&HistoricalAwards=false
• 关键词: RDE; FRI; Indoor; Outdoor; Blind

Even in an ideal academic setting in which a University has unlimited resources to reduce the challenges in the classroom, blind students will miss out on the numerous educational opportunities outside the classroom. This project proposes a navigation and location determination system using an RFID tag grid. The retail industry has developed a low cost tagging system to electronically monitor products from manufacturing, warehouse and to the consumer. The design requirements to satisfy the needs of the retail industry are low cost per unit, reliable, powerless and the ability to transmit a wide range of data. By leveraging advances in RFID technology it is feasible to develop a system that utilizes RFID tags as a location based information grid. Each RFID tag is permanently installed under carpet, wood floors, behind trim in hallways, along sidewalks and as part of any pedestrian path. Each RFID tag is programmed upon installation with its X,Y coordinates and information describing the surroundings. This allows for a localized information system with no dependency on a centralized database or wireless infrastructure for communications. For under $1 per tag it is possible to store 250 bytes of information that can be read as the user approaches the tag. Using proposed compression and flexible XML based protocols, an RFID grid in a room can store a complete inventory and location of the room objects and information about neighboring rooms. Upon entry into a room the RFID tags at the door provide a summary of the room's content and the location of each object. This information is then read into the student's cell phone or PDA and when the student needs to find the electrical outlet, telephone, desk, vending machine, etc., the system - knowing its current location based on the RFID tag coordinates - can give the path to the object through voice prompts.

即使在一个理想的学术环境中，大学有无限的资源来减少课堂上的挑战，盲人学生也会错过课堂外的许多教育机会。本项目提出了一种使用RFID标签网格的导航和位置确定系统。零售业已经开发了一种低成本的标签系统，以电子监控从制造、仓库到消费者的产品。满足零售业需求的设计要求是单位成本低，可靠，无动力和传输广泛数据的能力。通过利用RFID技术的进步，开发利用RFID标签作为基于位置的信息网格的系统是可行的。每个RFID标签都永久安装在地毯下、木地板下、走廊装饰后面、沿着人行道以及任何人行道的一部分。每个RFID标签在安装时都进行了编程，并带有X、Y坐标和描述周围环境的信息。这允许本地化的信息系统不依赖于用于通信的集中式数据库或无线基础设施。对于每个标签低于1美元，可以存储250字节的信息，当用户接近标签时可以读取这些信息。使用所提出的压缩和灵活的基于XML的协议，房间中的RFID网格可以存储房间对象的完整库存和位置以及关于相邻房间的信息。进入房间后，门上的RFID标签会提供房间内容和每个物体位置的摘要。然后，该信息被读入学生的手机或PDA中，并且当学生需要找到电源插座、电话、桌子、自动售货机等时，系统根据RFID标签坐标知道其当前位置，可以通过语音提示给出物体的路径。