VISIBLE LIGHT AUDIO INFORMATION TRANSFER SYSTEM

描述：这个第二阶段项目将开发一种廉价的可见光 音频信息传输系统（VLAITS），用于传输辅助信息 小型个人音频接收器（PAR）为盲人用户。VLAIS用户 已经安装的可见照明装置，如荧光灯， 调制光作为数据的载体介质。PAR接收此调制 并向用户呈现音频。VLAITS非常便宜，因为 它不需要额外的设备或特殊布线， 在现有的照明设备。在光线中没有可察觉的视觉闪烁 因为数据编码方案。VLAITS还可以为聋人提供辅助音频 用户. 第一阶段展示了VLAITS，合格的商业可见光作为 信息载体，并演示了寻路和听觉辅助， 盲人和聋人用户。这项建议寻求资金，以设计和完善一个 商用VLAITS系统，并验证系统功能和能力， 盲人和聋人用户。包括小型化和减少生产 计算机控制的光镇流器发射机的成本， 计算机控制的便携式接收器。接收器还将被设计为 与当前安装的红外系统兼容。这套装置必须 标签和寻路的多通道能力。 拟议的商业应用： 商业产品将包括改进的光镇流器和接收器。

DESCRIPTION: This Phase II project will develop an inexpensive Visible Light Audio Information Transfer System (VLAITS) that transmits assistive information to small Personal Audio Receivers (PAR) for blind users. VLAIS users already-installed visible lighting fixtures like fluorescent lights to provide modulated light as carrier medium for data. The PAR receives this modulated light and presents audio to the user. VLAITS is remarkable inexpensive because it requires no additional equipment or special wiring other than typically used in existing lighting fixtures. There is no perceptible visual flicker in light because of data coding schemes. VLAITS can also provide assisted audio for deaf users. Phase I demonstrated VLAITS, qualified commercial visible light as an information carrier, and demonstrated wayfinding and aural assistance with blind and deaf users. This proposal seeks funding to design and refine a commercial VLAITS system and validate system functions and capabilities with blind and deaf users. Included are miniaturization and reduction of production cost of the computer-controlled light ballast transmitter and computer-controlled portable receiver. The receiver will also be designed to be compatible with currently installed infrared system. The system will have multi-channel capability for both labeling and wayfinding. PROPOSED COMMERCIAL APPLICATIONS: Commercial products will include modified light ballasts and receivers.