基于LM3 S811芯片的“应声而来”智能家居垃圾桶

摘要

以LM3S811为核心设计一种智能家居垃圾桶，实现语音控制垃圾桶的运动。以拾音器作为声音传感器，采用延时估计法实现声源方位的实时检测；采用超声波传感器实现了垃圾桶行进的避障功能；同时，采用语音识别技术实现对用户的开启和关闭垃圾桶盖等各种语音指示的识别。关闭垃圾桶盖后，自动回到原来位置。从而达到了垃圾桶“应声而来”的智能化。%We designed an intelligence household appliance-an“on call” trash can,realizing the voice-controlling movement,with the design core of digital signal processor LM3S811. The system detects audio signal by using a pickup as a sound sensor,perceiving the direction of sound souce through the extension of estimation. Moreover,the ultrasonic sensor can shun obstacles during the movement of the trash can. By this way, the garbage can is more human and intelligent,reaching the goal of“on-call”intelligence trash can.