公开(公告)号：US07948378B2

公开(公告)日：2011-05-24

申请号：US12246154

申请日：2008-10-06

申请人： Michael Magargee ,  Robert Denney ,  William Porthouse ,  Thornton Caraway

发明人： Michael Magargee ,  Robert Denney ,  William Porthouse ,  Thornton Caraway

IPC分类号： G08B13/08

CPC分类号： G08B13/22 ,  G08B13/149

摘要： A non-defeatable magnetically actuatable switch device is shown and described for restricting access to industrial controls. The non-contact switch device employs one or more non-contact access switches, and an access key removably disposed in close proximity to each access switch. Removal or installation of an access key alters the electrical state of a corresponding access switch. A connected control unit determines a mode of operation, or grants permissions, based on the combination of access keys that are present or absent from the device. A lockable or sealable cover is provided over the access keys to limit unauthorized access. A tamper detection switch is also provided for the sole purpose of identifying foreign magnetic sources in the vicinity of the access switches to ensure that the device is non-defeatable. Furthermore, all access and tamper detection switches are magnetically actuatable and thus provide a completely contact-free means of securing and restricting access to sensitive controls and parameters.

摘要翻译： 显示和描述了一种不可破坏的可磁致动开关装置，用于限制对工业控制的访问。 非接触式开关装置采用一个或多个非接触式接入开关，以及可拆卸地设置在每个接入开关附近的接入钥匙。 访问密钥的删除或安装会改变相应访问交换机的电气状态。 连接的控制单元基于设备中存在或不存在的访问密钥的组合来确定操作模式或授予许可。 在访问键上提供可锁定或可密封的盖子，以限制未经授权的访问。 还提供了篡改检测开关，其唯一目的是识别接近开关附近的外部磁源，以确保该装置不可击败。 此外，所有访问和篡改检测开关都是可磁性驱动的，因此提供完全无接触的方式来确保和限制对敏感控件和参数的访问。

公开(公告)号：US20100085186A1

公开(公告)日：2010-04-08

申请号：US12246154

申请日：2008-10-06

申请人： Michael Magargee ,  Robert Denney ,  William Porthouse ,  Thornton Caraway

发明人： Michael Magargee ,  Robert Denney ,  William Porthouse ,  Thornton Caraway

IPC分类号： G08B13/00

CPC分类号： G08B13/22 ,  G08B13/149

摘要： A non-defeatable magnetically actuatable switch device is shown and described for restricting access to industrial controls. The non-contact switch device employs one or more non-contact access switches, and an access key removably disposed in close proximity to each access switch. Removal or installation of an access key alters the electrical state of a corresponding access switch. A connected control unit determines a mode of operation, or grants permissions, based on the combination of access keys that are present or absent from the device. A lockable or sealable cover is provided over the access keys to limit unauthorized access. A tamper detection switch is also provided for the sole purpose of identifying foreign magnetic sources in the vicinity of the access switches to ensure that the device is non-defeatable. Furthermore, all access and tamper detection switches are magnetically actuatable and thus provide a completely contact-free means of securing and restricting access to sensitive controls and parameters.

摘要翻译： 显示和描述了一种不可破坏的可磁致动开关装置，用于限制对工业控制的访问。 非接触式开关装置采用一个或多个非接触式接入开关，以及可拆卸地设置在每个接入开关附近的接入钥匙。 访问密钥的删除或安装会改变相应访问交换机的电气状态。 连接的控制单元基于设备中存在或不存在的访问密钥的组合来确定操作模式或授予许可。 在访问键上提供可锁定或可密封的盖子，以限制未经授权的访问。 还提供了篡改检测开关，其唯一目的是识别接近开关附近的外部磁源，以确保该装置不可击败。 此外，所有访问和篡改检测开关都是可磁性驱动的，因此提供完全无接触的方式来确保和限制对敏感控件和参数的访问。