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    • 10. 发明授权
    • RF channel linking method and system
    • RF信道链接方法和系统
    • US07248836B2
    • 2007-07-24
    • US10261933
    • 2002-09-30
    • Ronald Taylor
    • Ronald Taylor
    • H04Q7/20H04B17/00
    • H04W52/50G07C9/00103G07C2009/00793
    • In an RF access control system, a method for establishing a reliable RF signal link between points of the RF access control system. A first RF signal from a first point of the system is transmitted to a second point of the system at a first RF power level that is below a second RF power level used during normal operation of the RF access control system. Once the second point acknowledges the RF signal from the first point, then a pre-determined number of RF packets are transmitted and received back and forth between the first point and the second point at the first RF power level. An RF packet error count is generated in response to the transmitting and receiving of the pre-determined number of RF packets. If this error count is below a certain threshold value, then an indication is provided to an installer of the RF access control system of an RF channel number to be used by the RF access control system during normal operation.
    • 在RF接入控制系统中,用于在RF接入控制系统的点之间建立可靠的RF信号链路的方法。 来自系统的第一点的第一RF信号以低于在RF接入控制系统的正常操作期间使用的第二RF功率电平的第一RF功率电平被发送到系统的第二点。 一旦第二点确认来自第一点的RF信号,则在第一RF功率电平下,在第一点和第二点之间来回发送和接收预定数量的RF分组。 响应于发送和接收预定数量的RF分组而产生RF分组错误计数。 如果该错误计数低于某个阈值,则在正常操作期间向RF接入控制系统使用的RF信道号的RF接入控制系统的安装者提供指示。