The new utility model referrs to a kind of cleaning guard board for computer keyboard and keyboard cover.
本实用新型是一种用于计算机键盘键帽的保洁护板。
After researching the existing alert system, it is put forward a set of guard against theft alert system which consists of 8051 MCU, Ethernet - controlled chip, infrared detector and computer.
在对现有的防盗报警系统进行研究后，提出一套用8051单片机、以太网控制芯片、红外探头及计算机构成的防盗报警系统。
After researching the existing alert system, it is put forward a set of guard against theft alert system which consists of 8051 MCU, Ethernet - controlled chip, infrared detector and computer.
在对现有的防盗报警系统进行研究后，提出一套用8051单片机、以太网控制芯片、红外探头及计算机构成的防盗报警系统。
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