hmm...就是這樣,我要往下一個旅程走去了....
hmm...就是這樣,我要往下一個旅程走去了....
假如── 吉百齡(Rudyard Kipling)
假如舉世倉皇失措,人人怪你 , 而你能保持冷靜;
假如舉世見疑,而你能相信自己, 還能原諒他們的懷疑;
假如你能等待,而不怕等得累,
透過GPS裝置定位,雖然方便,但是往往因為在室內收不到GPS訊號,會造成定位失效。而透過Wi-Fi AP定位是室內定位的一種不錯的另外方式(當然啦,2D bar code其實也可以做到),不過其實原理都是一樣的,就是有人先幫你量好位置,你走到附近的位置,根據前人的資訊,你就可以知道你現在的位置可能在哪。
1.拿到建築物的平面圖,並將此圖可以數位化。
2.先擷取幾個特徵點n(1),n(2),.....n(m),在行走間測量其wi-fi AP的訊號特徵。
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