data modem card 中文意思是什麼

data modem card 解釋
數據調制解調卡
  • data : n 1 資料，材料〈此詞系 datum 的復數。但 datum 罕用，一般即以 data 作為集合詞，在口語中往往用單數...
  • modem : n. 【無線電】數據機。vt. 【計算機】通過數據機向…發送電子郵件。vi. 用數據機聯通。
  • card : n 1 紙牌；〈pl 〉紙牌機。2 卡片（紙）；明信片；請柬；入場券；名片。3 節目單；程序單；戲單；菜單；...
  1. Firstly, the airborne electromechanical system, the development of bus protocol, power line channel and power system are described in the dissertation ; secondly, the algorithm of qpsk and root raised cosin are discussed ; thirdly, the designation of the hardware and software of the modem board, based on qpsk, built up with dsp and cpld are given. the high - speed data transporting card of airborne electromechanical communication system, which is based on plc, are put forward in our country

    本文介紹了飛機電力線載波數據通信系統的結構，並對低壓電力線的通道特性進行了分析；對qpsk調制演算法及均方根升餘弦低通濾波演算法進行了詳細論證；設計出基於qpsk的調制解調模塊，並在此基礎上，研製出以dsp和cpld為最小系統的調制解調硬體電路板，開發了調制解調模塊電路板的應用軟體程序。
  2. Low - cost short - distance data collecting ; mass data collecting card with no complicated wire ; for remote data collecting, a modem only is needed

    成本低廉的近距離數據採集；無需布線的管理卡採集；即使不同城市間的遠距離數據採集，也只需配備一臺標準的數據機。
  3. In this system, there are many method of data transfer ( including : modem, serial port, w / r 1c card, infrared transmitting, gsm transmitting and embedded internet ), so the dependability is better than before

    此系統中的數據傳輸（包括modem 、串口傳輸和ic卡讀寫，也論及紅外傳輸、 gsm傳輸及嵌入internet式） ，方式多樣化，可靠性比目前的系統要好。
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