摘 要: 汽車胎壓監(jiān)測(cè)系統(tǒng)(TPMS)被譽(yù)為新一代汽車高科技安全配備用品。針對(duì)當(dāng)前汽車胎壓監(jiān)測(cè)系統(tǒng)（TPMS）不能全天候監(jiān)測(cè)輪胎狀況以及車輛不能進(jìn)行遠(yuǎn)程報(bào)警的問(wèn)題,，提出了一種基于nRF9E和GSM模塊的新型胎壓監(jiān)測(cè)系統(tǒng)的設(shè)計(jì)方案,。介紹了系統(tǒng)的總體結(jié)構(gòu)，從軟硬件兩方面描述了系統(tǒng)的設(shè)計(jì)實(shí)現(xiàn)方法,，重點(diǎn)描述了系統(tǒng)的低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)" title="低功耗設(shè)計(jì)">低功耗設(shè)計(jì)和按鍵顯示輪胎定位的方法,。該系統(tǒng)不僅能夠?qū)崟r(shí)監(jiān)測(cè)輪胎狀況，對(duì)異常情況進(jìn)行報(bào)警提示,，并能通過(guò)GSM模塊通信通知車主,而且具有車載CAN網(wǎng)絡(luò)接口,，在低功耗、可靠性以及安全性方面具有一定優(yōu)勢(shì),。
　　關(guān)鍵詞：TPMS,；nRF9E；輪胎定位,；GSM,；實(shí)時(shí)監(jiān)測(cè)

?

　　隨著我國(guó)汽車工業(yè)的發(fā)展和人民生活水平的提高，汽車越來(lái)越多地進(jìn)入普通家庭,，汽車的安全防盜性能也越來(lái)越為人們所重視,。在汽車高速行駛過(guò)程中,輪胎故障是突發(fā)性交通事故的重要原因。據(jù)統(tǒng)計(jì),在高速公路上發(fā)生的交通事故中約有70%是由爆胎引起的^[1],。而保持標(biāo)準(zhǔn)的車胎氣壓行駛和及時(shí)發(fā)現(xiàn)車胎漏氣是防止爆胎的關(guān)鍵,因此對(duì)汽車輪胎壓力,、溫度等參數(shù)的監(jiān)控是安全駕駛的重要保障。開(kāi)發(fā)和研究汽車輪胎壓力監(jiān)測(cè)系統(tǒng)TPMS(Tire Pressure Monitoring System)是確保行車安全的有效技術(shù)措施,也是當(dāng)前值得研究的重要課題,。本文研究的汽車胎壓監(jiān)測(cè)系統(tǒng),，不僅能夠解決目前的汽車胎壓檢測(cè)系統(tǒng)不能全天候檢測(cè)輪胎狀況和車輛不能進(jìn)行遠(yuǎn)程報(bào)警的問(wèn)題，而且低投入,、高效率的特性使其具有較好的使用價(jià)值和廣闊的市場(chǎng)前景。
1 系統(tǒng)的總體設(shè)計(jì)
1.1 系統(tǒng)的總體結(jié)構(gòu)
　　系統(tǒng)的總體結(jié)構(gòu)框圖如圖1所示,。系統(tǒng)主要由輪胎檢測(cè)模塊,、無(wú)線接收模塊、人機(jī)交互模塊和GSM模塊組成,。輪胎檢測(cè)模塊采用氣門嘴外置式安裝方法安裝在汽車的輪胎上,，對(duì)輪胎的溫度、壓力電壓,、加速度參數(shù)進(jìn)行實(shí)時(shí)測(cè)量,，并將測(cè)量的數(shù)據(jù)通過(guò)射頻（RF）通信接口發(fā)送,，無(wú)線接收模塊接收到有效數(shù)據(jù)后，通過(guò)CAN通信接口將數(shù)據(jù)傳送到人機(jī)交互模塊來(lái)進(jìn)行處理和顯示,，如發(fā)現(xiàn)異常,，及時(shí)報(bào)警提示。當(dāng)車主遠(yuǎn)離車輛時(shí),，如果車輛遭到非法破壞,，啟動(dòng)GSM模塊以短消息的形式將具體情況發(fā)送到車主手機(jī)，車主收到消息后,，可及時(shí)采取防范措施,。更重要的是，由于系統(tǒng)使用GSM網(wǎng)絡(luò)作為系統(tǒng)通信的媒介,，凡是GSM網(wǎng)絡(luò)能覆蓋的地方就能保證系統(tǒng)正常運(yùn)行,，所以系統(tǒng)基本不受距離的限制^[2]。

?

1.2 輪胎定位功能的設(shè)計(jì)
　　系統(tǒng)輪胎檢測(cè)模塊定位功能設(shè)計(jì)的出發(fā)點(diǎn)是采用可靠,、便捷,、低成本的輪胎檢測(cè)模塊定位技術(shù)^[3]。本系統(tǒng)采用的是按鍵顯示輪胎定位技術(shù),，此方法最大好處在于完全利用已有的硬件資源,，不需要添加任何其他的硬件設(shè)備，完全由軟件實(shí)現(xiàn),。定位時(shí),，可以同時(shí)設(shè)置報(bào)警閥值。
　　定位功能設(shè)計(jì)要考慮兩種情況:一是輪胎置換保養(yǎng)時(shí)的定位;二是當(dāng)更換1個(gè)或同時(shí)更換2個(gè)及以上輪胎檢測(cè)模塊時(shí)的定位,。輪胎置換保養(yǎng)時(shí)的定位非常容易實(shí)現(xiàn),由于輪胎檢測(cè)模塊采用氣門嘴外置式安裝方式,當(dāng)輪胎更換位置時(shí),將模塊從輪胎氣門嘴卸下重新安裝到原來(lái)的位置即可,而當(dāng)模塊損壞需要更換時(shí),則通過(guò)將輪胎檢測(cè)模塊直接連到控制中心的顯示模塊上進(jìn)行設(shè)置來(lái)實(shí)現(xiàn),其具體步驟如下:
　?。?）將新的輪胎檢測(cè)模塊旋入顯示模塊的串口，中心模塊的LED亮表示可以進(jìn)行定位設(shè)置;
　?。?）按設(shè)置鍵進(jìn)入設(shè)置界面,，通過(guò)移動(dòng)鍵選擇輪胎定位設(shè)置進(jìn)入設(shè)置界面，選擇定位位置時(shí),相應(yīng)的輪胎指示燈點(diǎn)亮,，當(dāng)按下確定鍵后,輪胎定位的位置已經(jīng)確定,，接著設(shè)置報(bào)警閥值，再次按下確認(rèn)鍵后,，顯示模塊便把此位置信息通過(guò)串口存儲(chǔ)到輪胎檢測(cè)模塊中,同時(shí)輪胎檢測(cè)模塊將自身的傳感器ID碼傳送到顯示模塊;
　?。?）旋出輪胎檢測(cè)模塊并安裝到相應(yīng)的位置。
　　顯示模塊通過(guò)串口發(fā)送給輪胎檢測(cè)模塊的位置信息為簡(jiǎn)單的二元編碼00,、01,、10和11,它們分別代表一個(gè)輪胎位置。這種有線的設(shè)置方式可靠性高,避免了無(wú)線方式的干擾問(wèn)題,操作簡(jiǎn)便,成本低。
1.3 系統(tǒng)的低功耗設(shè)計(jì)
　　系統(tǒng)的低功耗設(shè)計(jì)包括硬件和軟件設(shè)計(jì)兩個(gè)方面,。硬件設(shè)計(jì)與元器件的選擇有關(guān),而軟件設(shè)計(jì)則主要是采用高效的算法協(xié)調(diào)工作與睡眠模式的切換,以及各模塊間的通信連接及通信效率,。
1.3.1 硬件低功耗設(shè)計(jì)與實(shí)現(xiàn)
　　在硬件的設(shè)計(jì)上,主要是選擇使用低功耗、具有睡眠模式的器件,并進(jìn)行有效的電路設(shè)計(jì),。
　　(1)發(fā)射芯片的選擇與低功耗設(shè)計(jì)
　　考慮到模塊的體積,，選擇MCU和發(fā)射芯片集成的器件nRF9E5,既能進(jìn)一步降低PCB成本,又能降低各模塊間的通信能耗。nRF9E5是Nordic VLSI公司推出的系統(tǒng)級(jí)RF芯片,，適用于汽車工業(yè)領(lǐng)域,。它內(nèi)置高性能增強(qiáng)型51單片機(jī)(4 clock)，單片機(jī)全速運(yùn)行功耗1 mA@4M,。工作電壓1.9～3.6 V,，待機(jī)功耗2 μA，具有完全的低功耗設(shè)計(jì),，可以直接使用電池工作,。它存在發(fā)送、接收,、待機(jī)（空閑）和掉電（睡眠）4種狀態(tài),。從耗電情況來(lái)看，在發(fā)送狀態(tài)的能量消耗最大,，典型電流為30 mA,；接收狀態(tài)次之，典型電流為12.5 mA,；待機(jī)狀態(tài)典型電流為32μA,；而在掉電狀態(tài)下能量消耗最小，其典型電流為2.5μA^[5],。因此,，提高通信效率、減少不必要的發(fā)送和接收,，無(wú)需通信時(shí)盡快進(jìn)入睡眠狀態(tài)是降低設(shè)備能耗的有效措施之一,。另外，nRF9E5是一款發(fā)射功率可變的無(wú)線芯片,，在保證通信質(zhì)量的前提下,，可以盡量降低信號(hào)的發(fā)射功率。信號(hào)發(fā)射功率的降低會(huì)使發(fā)送節(jié)點(diǎn)的功耗下降,，可以節(jié)省能量,。
　　(2)傳感器的選擇與低功耗設(shè)計(jì)
　　對(duì)于傳感器,需要選擇實(shí)時(shí)性高,穩(wěn)定性強(qiáng),具備喚醒功能的低功耗器件。本系統(tǒng)采用英飛凌公司的SP12多功能傳感器,。該傳感器具有喚醒瞬態(tài)工作模式,即每6s輸出一個(gè)喚醒信號(hào),每50 min輸出一個(gè)復(fù)位信號(hào)；工作在睡眠模式時(shí),電流消耗僅0.6μA/s。該傳感器還集成有加速度傳感器模塊,利用加速度啟動(dòng)喚醒機(jī)制,。輪子轉(zhuǎn)速大,離心力大,離心加速度也大,；反之,離心加速度小。當(dāng)檢測(cè)到加速度很小時(shí)(表示汽車沒(méi)有運(yùn)動(dòng)),讓系統(tǒng)進(jìn)入睡眠狀態(tài),；加速度比較大時(shí),喚醒傳感器工作,。由車輪轉(zhuǎn)速可計(jì)算出車輪轉(zhuǎn)動(dòng)的角速度ω,其加速度(輪子轉(zhuǎn)動(dòng)的離心加速度) a=ω²r(r為發(fā)射模塊相對(duì)于輪軸的距離)也可方便地測(cè)量出來(lái)。通過(guò)判斷加速度的大小,在程序中設(shè)定不同的測(cè)試時(shí)間間隔和發(fā)射數(shù)據(jù)時(shí)間間隔,可以有效地控制傳感器模塊與MCU的通信次數(shù)和通信速度,以便最大限度地節(jié)約電池?fù)p耗,延長(zhǎng)電池的使用壽命^[6],。
　　(3)中央微處理器的選擇與節(jié)能設(shè)計(jì)
　　ATmega128是基于AVRRISC結(jié)構(gòu)的8位低功耗CMOS微處理器,。它可由軟件配置成6種不同省電模式，而各種低功耗模式又可以通過(guò)中斷方式回到工作模式,。利用ATmega128的這種特性通過(guò)編程,，適當(dāng)?shù)貙?duì)其設(shè)置；當(dāng)沒(méi)有數(shù)據(jù)接收處理時(shí),，將MCU置于低功耗模式,；而當(dāng)有任務(wù)需要處理時(shí)，將它從低功耗模式下喚醒,，進(jìn)行工作,；當(dāng)工作完成以后重新進(jìn)入低功耗模式，從而節(jié)約能量,。
1.3.2 軟件低功耗設(shè)計(jì)與實(shí)現(xiàn)
　　系統(tǒng)軟件的低功耗設(shè)計(jì)是實(shí)現(xiàn)系統(tǒng)低功耗設(shè)計(jì)的另一個(gè)重要方面,。軟件設(shè)計(jì)中，重要的是要充分保證模塊間通信的可靠性,模塊的穩(wěn)定性和各模塊的協(xié)調(diào)性,。
　　在輪胎檢測(cè)模塊中,，利用喚醒和加速度傳感器相結(jié)合的方法來(lái)實(shí)現(xiàn)低功耗設(shè)計(jì)。由于汽車大部分時(shí)間處于靜止?fàn)顟B(tài),讓系統(tǒng)進(jìn)入休眠模式可以極大地延長(zhǎng)電池使用壽命,。輪胎檢測(cè)模塊從休眠模式轉(zhuǎn)為工作模式可以通過(guò)傳感器SP12的wakeup信號(hào)實(shí)現(xiàn),。當(dāng)測(cè)試的加速度為0時(shí)，說(shuō)明汽車處于停止?fàn)顟B(tài),，模塊進(jìn)入休眠狀態(tài),，當(dāng)喚醒5次的時(shí)候，再次測(cè)試加速度若加速度還為0,，測(cè)試氣壓,，如果氣壓正常,進(jìn)入休眠模式；如果氣壓異常,，說(shuō)明輪胎遭到破壞,，繼續(xù)測(cè)試其他參數(shù)等待發(fā)射;當(dāng)加速度大于0并且大于設(shè)定的閥值時(shí)，汽車處于高速運(yùn)行狀態(tài),，每隔1 s測(cè)量一次輪胎的參數(shù),，當(dāng)加速度小于設(shè)定的閥值時(shí)，汽車處于低速行駛狀態(tài)，以較長(zhǎng)時(shí)間間隔測(cè)試輪胎的參數(shù),。
　　由于射頻信號(hào)的發(fā)射功耗是胎壓檢測(cè)模塊電量消耗最多的部分,。為了有效減少能耗，當(dāng)汽車進(jìn)入行駛狀態(tài)時(shí),，通過(guò)檢測(cè)壓力來(lái)決定發(fā)送輪胎信息的頻率,。當(dāng)測(cè)量的壓力值正常時(shí)，較長(zhǎng)時(shí)間發(fā)射數(shù)據(jù)一次,；由于汽車的工作環(huán)境復(fù)雜多變,，采集到的信號(hào)有可能出現(xiàn)尖峰毛刺現(xiàn)象，特別是輪胎壓力信號(hào),。因此,，當(dāng)壓力值超標(biāo)時(shí)，為了防止誤報(bào)警,，采取中值濾波的方法來(lái)確認(rèn)壓力值,，若確實(shí)超標(biāo)，進(jìn)入快速發(fā)送模式,，立即發(fā)射數(shù)據(jù),，接收到返回的確認(rèn)信號(hào)后，進(jìn)入待機(jī)模式,，等待下一次的喚醒,。
　　同樣，中央控制器采取中斷方式操作,，當(dāng)有有效數(shù)據(jù)顯示時(shí),，中斷喚醒MCU進(jìn)行數(shù)據(jù)處理并顯示，完成之后,，繼續(xù)進(jìn)入省電模式,，等待下一次的喚醒。
2 系統(tǒng)的硬件實(shí)現(xiàn)
　　輪胎檢測(cè)模塊采用鋰亞電池供電,，SP12的喚醒信號(hào)向單片機(jī)提供外部中斷,定時(shí)喚醒單片機(jī)工作,。通過(guò)SPI接口與nRF9E5實(shí)現(xiàn)信號(hào)的采集與傳輸。其電路框圖如圖2所示,。

?

?

　　其中,，狀態(tài)字節(jié)前6位分別用于確認(rèn)壓力,、溫度、電壓值是否超標(biāo),、是否報(bào)警提示和啟動(dòng)GSM通信,，剩余的2位用來(lái)確認(rèn)輪胎位置,，加上前面的輪胎ID確認(rèn)，提高了系統(tǒng)的可靠性,。
3.2 輪胎檢測(cè)模塊流程
　　整個(gè)模塊流程如圖3所示,。當(dāng)汽車靜止時(shí)，傳感器每隔一段時(shí)間測(cè)試輪胎的壓力參數(shù),，如果氣壓正常，不發(fā)送數(shù)據(jù),，待機(jī)一段時(shí)間后繼續(xù)測(cè)試,；如果氣壓異常，即輪胎遭到破壞時(shí),，數(shù)據(jù)采集后立即發(fā)送,，所以，在靜止時(shí),，nRF9E5大部分時(shí)間處于待機(jī)模式,；當(dāng)汽車進(jìn)入行駛狀態(tài)時(shí)，通過(guò)檢測(cè)輪胎的氣壓來(lái)決定發(fā)送輪胎信息的頻率,。當(dāng)測(cè)量的壓力值正常時(shí),，每1 min發(fā)送一次數(shù)據(jù)；當(dāng)壓力值超標(biāo)時(shí),，進(jìn)入快速發(fā)送模式,，立即發(fā)送數(shù)據(jù)，當(dāng)接收到返回的確認(rèn)幀信號(hào)后進(jìn)入休眠模式,，否則,，一直重發(fā)數(shù)據(jù)。

?

　　當(dāng)中央監(jiān)控模塊接收到有效數(shù)據(jù)后進(jìn)行處理顯示,，如數(shù)據(jù)異常，進(jìn)行報(bào)警,。當(dāng)汽車遭到破壞而車主遠(yuǎn)離車輛時(shí),，報(bào)警并啟動(dòng)GSM模塊通信,，及時(shí)通知車主，以便車主同時(shí)采取防范措施,。
　　本文所設(shè)計(jì)的汽車胎壓監(jiān)測(cè)系統(tǒng),，不僅能全天候檢測(cè)輪胎狀況，進(jìn)行遠(yuǎn)程報(bào)警,；而且整個(gè)系統(tǒng)在低功耗,、穩(wěn)定性以及安全性方面具有一定的優(yōu)勢(shì)。系統(tǒng)提出的按鍵顯示輪胎定位方法,，抗干擾性能高,、操作簡(jiǎn)便、成本低廉,，具有很高的實(shí)用價(jià)值,。另外,系統(tǒng)還具有CAN網(wǎng)絡(luò)接口,采用GSM網(wǎng)絡(luò)進(jìn)行遠(yuǎn)程防盜報(bào)警，符合未來(lái)汽車車載網(wǎng)絡(luò)發(fā)展和智能車輛研究的發(fā)展趨勢(shì),。

參考文獻(xiàn)
[1]?秦拯,，胡建國(guó)，劉志賢.汽車胎壓智能監(jiān)測(cè)系統(tǒng)研究與實(shí)現(xiàn)[J].微計(jì)算機(jī)信息,，2008,，（24）：230.
[2]?黃曉妍.汽車遠(yuǎn)程控制防盜報(bào)警系統(tǒng)設(shè)計(jì)[D].武漢理工大學(xué)碩士論文，2007.
[3]?李凱.汽車輪胎壓力監(jiān)測(cè)系統(tǒng)（TPMS）的設(shè)計(jì)[D].??? 武漢理工大學(xué)碩士學(xué)位論文,，2007.
[4]?陶桂寶,，龐麗.直接式汽車輪胎壓力監(jiān)測(cè)系統(tǒng)設(shè)計(jì)[J].重慶大學(xué)學(xué)報(bào)，2008,，（31）：9-10.
[5]?NRF9E5 RF ransceiver product specification. Nordic sensor.Inc.2005,，1.
[6]?王基一，郭啟軍,，張浩然.低功耗輪胎壓力監(jiān)測(cè)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[J].計(jì)算機(jī)時(shí)代,，2008（8）：36-37.