The traffic light is timed and lets cars pass during a
specific time period. There is a pedestrial crossing
button that lets pedestrians cross. The lights are
connected to Port 1. You can see this in action using
dScope.
這篇論文描述了一種設(shè)計Hard Real time System的結(jié)構(gòu)方法HRT-HOOD，由York大學(xué)的兩位教授提出，York大學(xué)的Real time System Group是關(guān)于實(shí)時系統(tǒng)研究的世界領(lǐng)先機(jī)構(gòu)，研究內(nèi)容具體可以登陸York的網(wǎng)站，或者參考出版書籍：Real time Systems and Programming Languages.
