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    • 2. 发明授权
    • Emergency power shutdown system for educational laboratory
    • 教育实验室紧急停电系统
    • US4378507A
    • 1983-03-29
    • US218348
    • 1980-12-22
    • Robert H. Root
    • Robert H. Root
    • H02H1/00G08C17/00
    • H02H1/00Y10T307/76
    • The emergency power shutdown system is especially adapted for use in an educational laboratory containing a plurality of items of potentially dangerous educational equipment. The system includes a portable transmitter unit adapted to be carried by the instructor in the laboratory and a control unit having a receiver fixedly mounted in the laboratory and capable of receiving the RF signal from the transmitter unit to actuate a relay-operated power shutdown unit to stop the flow of power through the system upon receipt of the RF signal from the instructor. The system provides for faster shutdown of the power supply system in an emergency situation, reducing the chance of injuries during operation of the potentially dangerous equipment.
    • 紧急停电系统特别适用于包含多个潜在危险教育设备项目的教育实验室。 该系统包括适于由实验室中的教练携带的便携式发射机单元和具有固定地安装在实验室中的接收器的控制单元,并且能够接收来自发射机单元的RF信号,以致动继电器操作的电力关闭单元 从教师收到RF信号后,停止通过系统的电力流动。 该系统在紧急情况下提供电源系统的更快关闭,从而减少潜在危险设备运行过程中受伤的机会。