評(píng)論
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Touch your smartphone screen and you get local weather or a street map.
輕觸你的智能手機(jī)屏幕，馬上就能夠獲取本地天氣或者街道地圖。
So you might assume that mobile phones know exactly where you are.
所以你想當(dāng)然的認(rèn)為移動(dòng)電話可以定位你的所在。
But get into trouble and you might find your phone isn't watching you as closely as you thought.
如果這樣你麻煩就大了，你也許會(huì)發(fā)現(xiàn)自己的手機(jī)壓根不是想得那樣精準(zhǔn)。
Emergency responders recently told the Wall Street Journal that their 911 dispatchers have trouble getting help to the location of cell phone callers.
緊急應(yīng)答機(jī)構(gòu)最近爆料給華爾街雜志他們的911救援調(diào)度人員在幫助手機(jī)用戶定位問題上陷入了麻煩。
And a report this summer showed more than half of all California wireless 911 calls in certain areas didn't have location information.
而今年夏天的一項(xiàng)調(diào)查報(bào)告顯示，加州地區(qū)所有的無線911呼叫電話中有一半以上顯示不出具體位置信息。
One way to locate a cell phone is through GPS, assuming the phone has one and it's outdoors.
定位手機(jī)的一種方式是通過GPS全球定位系統(tǒng)，前提是手機(jī)具備這項(xiàng)功能而且身在戶外。
Another is through location-based services.
另一種方法則是通過固定在地面的服務(wù)器。
These follow the signals sent between your phone and your wireless network's radio towers.
這些設(shè)備會(huì)追蹤從你的手機(jī)到無線網(wǎng)絡(luò)發(fā)射塔距離之間的信號(hào)。
But towers can be miles apart, making it hard to pinpoint locations and adding minutes to response times.
但也許離你并不近的發(fā)射塔使得精確定位有些困難，而且反應(yīng)時(shí)間會(huì)有延遲。
Responders want wireless companies to include location data with each call, something privacy advocates oppose.
救援應(yīng)答組織希望無線公司提供每通電話的具體位置信息，而其中有些是隱私權(quán)倡導(dǎo)者所反對(duì)的。
It's a matter of perspective.
而這完全是由看法不同所導(dǎo)致。
Sometimes you want to be off the grid.
畢竟有時(shí)你就是想擺脫地圖上坐標(biāo)方格的束縛，
But in a crisis, the grid could be your best friend.
但危險(xiǎn)時(shí)刻，這些位置坐標(biāo)可能是你的救命稻草。
