FilterImageGrabber:即时抓图的Filter。这是一个Trans-In-Place Filter，Filter注册名为“HQ Image Grabber”，仅支持RGB32/24/565/555四种媒体类型， 将其接入到Filter链路之后，可以抓取任何一个经过该Filter的Sample。-FilterImageGrabber: real-time capture of the Filter. This is a Trans-In-Place Filter, Filter

实验七555防盗报警电路，当出现盗窃事件时，通过电路进行报警-Experiment 7 555 burglar alarm circuit, when the theft occurred, the alarm circuit through