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Smart phones can provide music, movie times, bus schedules. They can even make phone calls! And now, they might help cut down fuel use while driving. That is, if enough are used in a system called SignalGuru developed by researchers at MIT and Princeton.
智能手機(jī)有放音樂，播電影和汽車時(shí)刻表的功能。當(dāng)然，他們是可以打電話的?，F(xiàn)在，他們可以幫助開車時(shí)減少燃料的使用。這就是一種名為SignalGuru系統(tǒng)，由麻省理工和普林斯頓的專家設(shè)計(jì)。

A network of smartphones mounted on vehicle dashboards captures and transmits images of traffic signals. The SignalGuru software then analyzes the data to predict traffic signal patterns. If the light ahead is red, the driver is told the optimal speed to avoid stopping and idling. Or told to make a slight route change that avoids a stop. Because idling and accelerating significantly increase fuel consumption.
安裝在儀表盤上智能手機(jī)的網(wǎng)絡(luò)可以捕捉和傳送交通信號(hào)的圖像。SignalGuru程序分析數(shù)據(jù)，估算出信號(hào)變化的時(shí)間。如果信號(hào)燈是紅的，系統(tǒng)會(huì)提供給司機(jī)一個(gè)理想的速度，避免急剎和等待綠燈?；蛘呦到y(tǒng)稍微改動(dòng)一下路線來避免等待綠燈。因?yàn)榈却G燈和加速都會(huì)大大增加燃料的消耗。

The system was tested in Cambridge, Massachusetts, where traffic lights are on a set pattern, and in Singapore, where signals respond to traffic flow. Drivers slashed their fuel use by about 20 percent on average. The study won a best-paper award at the Association for Computing Machinery’s MobiSys Conference.
馬薩諸塞州，劍橋和新加坡測試了這個(gè)系統(tǒng)，除新加坡外，其他地方的紅綠燈都有固定的時(shí)間間隔。新加坡的信號(hào)燈是隨著交通流量變化的。測試中的駕駛者的燃料使用量下降了20%。這項(xiàng)研究在“自動(dòng)控制移動(dòng)機(jī)械系統(tǒng)”聯(lián)合會(huì)會(huì)議上獲得了最佳論文獎(jiǎng)。

The researchers say the platform could work for a variety of driving tips—prices at gas stations, or parking availability. And a bonus: with the phone mounted on the dashboard, you can’t text and drive.
研究者還提到這個(gè)平臺(tái)可以提供更多的駕駛信息——油站的價(jià)格，或者車位信息。但是，這些優(yōu)勢都有一個(gè)附贈(zèng)品——你不能用儀表盤上的手機(jī)發(fā)短信，和專心開車。

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