Garmin DM 都沒有說明是否有支援全省門牌號碼搜尋, Mio C710 都有特別說明支援全省200萬筆門牌號碼搜尋
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全台約有400萬筆一樓門牌
北中南三大都市-------約200萬筆
其他縣市--------------約200萬筆
至於台灣現用導航軟體內的門牌資料庫,蓋略如下
(A)路易通----------約達350萬筆
(B)panasonic ----約達350萬筆
(C)miomap(大輿圖資)--------僅約200萬筆(因此號稱是大輿簡易版)
(D)Garmin, TOMTOM, Asus等採用大輿圖資---並未詳細公佈資訊,但確定的是高於200萬筆, 但遠遠低於路易通 & 松下圖資庫
(E)PaPaGO系列:
G10前公佈的的北中南三大都市門牌總數(127萬筆)----圖資總量(488萬筆)
R12公佈的全省門牌總數(未公佈)------但圖資總數(550萬筆)
因此若將兩版本圖資總數相減(550-488)=62萬筆
判斷 R12內建的全省門牌約在189萬筆
如此應該明瞭純就全省門牌導航較正確及完整的是
(1)路易通
(2松下圖資
以上純為個人研究
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