VISIBLE LIGHT AUDIO INFORMATION TRANSFER SYSTEM

描述：这个二期项目将开发一种廉价的可见光 传输辅助信息的音频信息传输系统(VLAITS) 适用于盲人用户的小型个人音频接收器(PAR)。Vlais用户 已安装的可见光照明设备，如荧光灯，以提供 调制光作为数据的载体介质。PAR接收该调制的 灯光并向用户呈现音频。VLAITS非常便宜，因为 除了通常使用的设备外，它不需要额外的设备或特殊布线 在现有照明设备中。光线中没有可察觉的视觉闪烁 这是因为数据编码方案。VLAITS还可以为聋人提供辅助音频 用户。 第一阶段演示了VLAITS，合格的商业可见光作为 信息载体，并演示了如何通过 盲人和聋人用户。这项提案寻求资金来设计和完善一个 商业VLAITS系统，并验证系统功能和功能 盲人和聋人用户。其中包括小型化和减产 计算机控制的轻型镇流器发送器和 计算机控制的便携式接收器。接收器也将被设计为 与当前安装的红外系统兼容。系统将会有 标签和寻路的多渠道能力。 建议的商业应用： 商业产品将包括改装的轻型镇流器和接收器。

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.