你可会记得有多少次的约会,对方迟到;你打电话给他,他说已经在途中,等了又等,但是还不见他露面?那你应该怎么办,继续等下去,还是给他三分钟时间,然后离开呢?如果你可以在手提电话上或者是在个人数码助理上,只消输入对方的号码,就可以知道对方的位置所在,那么你的感觉会不会舒服点呢?这是定位计算,无线移动运算中的最热门一环,可以为客户提供新服务,也为网络营运商提供新收入来源,甚至在某些情况下,可以拯救性命。背后的概念是尽量利用手机、个人数码助理、甚至潮流饰物来做追踪物主的移动路向 You can remember how many times the appointments were made and the other was late; you called him, he said he was on the way, waited and waited but did not see him again, what should you do, keep going, or give him three Minutes, and then leave? If you can in the mobile phone or personal digital assistant, just enter the other party’s number, you can know each other’s location, then you feel comfortable? This is the positioning Computing, the hottest part of wireless mobile computing, can deliver new services to customers, provide new sources of revenue to network operators and, in some cases, save lives. The concept behind it is to make the best use of mobile phones, PDAs, and even trendy accessories to track the movement of the owner