1) Intelligent water meter with RF card
射频卡智能水表
2) Radio frequency intelligent card
射频智能卡
3) intelligent RF IC card
射频智能IC卡
4) IC RF smart card
IC射频智能卡
5) intelligent IC card cold water meter
智能IC卡冷水表
1.
The development of an intelligent IC card cold water meter was presented which has several functions such as displaying the volume of the consumed water,controlling the electromagnetic valve,recording the operations of user s,defending against disturbing of strong magnetic field and disassembling,giving a alarm under lower voltage etc.
给出了一种低功耗智能IC卡冷水表的软硬件设计方案与实现方法[1,2],该智能冷水表具有水量显示、水量累计,电磁阀控制,操作记录,防强磁场干扰,防拆,欠压报警等功能,独特的低功耗设计大大延长了水表的有效使用寿命。
补充资料:射频
射频
物理学术语。介于声波和红外线之间的波的频率。用于MR研究的射频常在兆赫兹(MHz)范围内。磁共振成像中,必须使用射频脉冲选择性激励特定层面的质子,以产生MR信号。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条