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1. 发明申请

US20060279406A1 Synchronization and adaptive timing method for multiple RFID reader system 审中-公开
标题翻译：多个RFID阅读器系统的同步和自适应定时方法
公开(公告)号：US20060279406A1
公开(公告)日：2006-12-14
申请号：US11449455
申请日：2006-06-07
申请人： Robert Stewart , Ing. Gunther Neger
发明人： Robert Stewart , Ing. Gunther Neger
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10356
摘要： In a system comprising multiple electronic (radio frequency) identification interrogator devices, which are used to activate and to receive identification code information from one or more passive transponder devices, activation signals are synchronized and adaptively timed by a master interrogator. The master interrogator generates a synchronization signal containing frequency, phase, and cadence information, and uses this synchronization signal to generate its own activation signal. The master interrogator also conveys this synchronization signal to slave interrogators, where it is used to generate each slave's activation signal. Each slave interrogator conveys to the master interrogator its transponder detection status information, and the master interrogator modifies the synchronization signal's cadence in compliance with timing requirements of ISO Standard 11785. A universal interrogator architecture is employed, whereby each interrogator is configured by software to be either the master interrogator or a slave interrogator. Fail-safe operation of the system is possible by virtue of a slave interrogator's ability to reconfigure itself as the master interrogator in the event of loss of the primary master interrogator's synchronization signal.
摘要翻译：在包括多个电子（射频）识别询问器装置的系统中，用于激活和接收来自一个或多个无源应答器装置的识别码信息，激活信号由主询问器同步并自适应地定时。主询问器产生包含频率，相位和节奏信息的同步信号，并且使用该同步信号来产生其自身的激活信号。主询问器还将该同步信号传送给从属询问器，用于产生每个从机的激活信号。每个从站询问器向主询问器传送其应答器检测状态信息，并且主询问器根据ISO标准11785的定时要求修改同步信号的节奏。采用通用询问器架构，每个询问器由软件配置为主询问器或从属询问器。在主要的主要询问器的同步信号丢失的情况下，凭借从属询问器自身重新配置为主询问器的能力，系统的故障安全操作是可能的。

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