2011-2012德州仪器C2000及MCU创新设计大赛项目报告题目：“随叫随到”垃圾桶学校：深圳大学组别：专业组应用类别：先进控制类平台：C2000“随叫随到”垃圾桶摘要本系统以TMS320F2812为核心设计了一种智能家居装置——“随叫随到”垃圾桶，实现了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（TimeDelayEstimation，TDE）实现了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蔽障功能；同时，采用语音识别技术实现了对用户的前、后、左、右行驶或开启、关闭垃圾桶盖等各种语音指示的识别。从而达到了垃圾桶“随叫随到”的智能化、人性化的目的。关键词：TMS320F2812，智能家居，声源定位，避障"Oncall"trashcanAbstractWedesignedanintelligencehouseholdappliance–an"oncall"trashcan，realizingthevoice-controllingmovement,withthedesigncenteredofTI'sdigitalsignalprocessorTMS320F2812.Thesystemdetectsaudiosignalbyusingapickupasasoundsensor,HYPERLINK"app:ds:perceive"\t""perceivingthedirectionofsoundsoucethroughtheextensionofestimation(TimeDelayEstimation.TDE).Moreover,theHYPERLINK"app:ds:ultrasonic"\t""ultrasoniccanshunobstacleswhilethemovementofthetrashcan.Bythisway,thegarbagecanismorehumanandintelligent,reachingthegoalof“on-call”intelligencetrashcan.Keywords:TMS320F2812,smarthome,soundsourcelocalization,shunobstacle目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc318317506"摘要PAGEREF_Toc318317506\h2HYPERLINK\l"_Toc318317507"AbstractPAGEREF_Toc318317507\h2HYPERLINK\l"_Toc318317508"1.引言PAGEREF_Toc318317508\h4HYPERLINK\l"_Toc318317509"2.系统方案PAGEREF_Toc318317509\h4HYPERLINK\l"_Toc318317510"2.1系统硬件设计方案PAGEREF_Toc318317510\h4HYPERLINK\l"_Toc318317511"2.2系统软件设计方案PAGEREF_Toc318317511\h6HYPERLINK\l"_Toc318317512"2.2.1声源定位算法PAGEREF_Toc318317512\h6HYPERLINK\l"_Toc318317513"（1）时延估计PAGEREF_Toc318317513\h6HYPERLINK\l"_Toc318317514"（2）方位估计PAGEREF_Toc318317514\h7HYPERLINK\l"_Toc318317515"2.2.2特定语音识别算法PAGEREF_Toc318317515\h7HYPERLINK\l"_Toc318317516"2.2.3避障算法PAGEREF_Toc318317516\h8HYPERLINK\l"_Toc318317517"3.系统硬件设计PAGEREF_Toc318317517\h9HYPERLINK\l"_Toc318317518"3.1电源模块PAGEREF_Toc318317518\h9HYPERLINK\l"_Toc318317519"3.2声源定位模块PAGEREF_Toc318317519\h9HYPERLINK\l"_Toc318317520"3.3语音识别模块PAGEREF_Toc318317520\h10HYPERLINK\l"_Toc318317521"3