RF ADAPTER FOR FIELD DEVICE WITH LOW VOLTAGE INTRINSIC SAFETY CLAMPING
    5.
    发明申请
    RF ADAPTER FOR FIELD DEVICE WITH LOW VOLTAGE INTRINSIC SAFETY CLAMPING 审中-公开
    用于具有低电压内部安全钳位的现场设备的RF适配器

    公开(公告)号:WO2009154748A2

    公开(公告)日:2009-12-23

    申请号:PCT/US2009003616

    申请日:2009-06-17

    Abstract: An adapter (300) for coupling to a process control transmitter (308) of the type used to monitor a process variable in an industrial process includes a first connection configured to couple to a first side of a two wire process control loop (302), a second connection configured to couple to a second side of the two wire process control loop (302) and in series with a first connection to a process control transmitter (308), and a third connection configured to couple to a second connection of the process control transmitter (308). Wireless communication circuitry is coupled to at least the third connection and is configured to provide wireless communication for the process control transmitter (308). Intrinsic safety circuitry (460) coupled to at least one of the first, second and third connections is configured to limit transfer of electrical energy to a value which is less than an intrinsic safety value.

    Abstract translation: 用于耦合到用于监测工业过程中的过程变量的类型的过程控制发送器(308)的适配器(300)包括被配置为耦合到双线过程控制回路(302)的第一侧的第一连接, 第二连接,其被配置为耦合到所述两线制过程控制回路(302)的第二侧并且与到过程控制发送器(308)的第一连接串联,以及被配置为耦合到所述过程的第二连接的第三连接 控制发射机(308)。 无线通信电路耦合到至少第三连接,并且被配置为为过程控制发送器(308)提供无线通信。 耦合到第一,第二和第三连接中的至少一个的本质安全电路(460)被配置为将电能的传递限制为小于本征安全值的值。

    WIRELESS MESH NETWORK WITH LOCALLY ACTIVATED FAST ACTIVE SCHEDULING OF WIRELESS MESSAGES
    6.
    发明申请
    WIRELESS MESH NETWORK WITH LOCALLY ACTIVATED FAST ACTIVE SCHEDULING OF WIRELESS MESSAGES 审中-公开
    无线网状网络,具有无线消息的本地激活快速主动调度

    公开(公告)号:WO2008042164A3

    公开(公告)日:2008-07-10

    申请号:PCT/US2007020686

    申请日:2007-09-25

    Abstract: A wireless mesh network is formed by nodes (GW1, GW2, A-F, X-Z) having a regular active schedule for transmitting and receiving messages, and a fast active schedule mode that is locally activated when a demand exists for transmission of a larger number of messages. As each node transmits a message to another node, the transmitting node includes a message buffer queue parameter that indicates the number of messages in the transmitting nodes, pending message queue. The receiving node determines, based upon the message buffer queue parameter received and its own capacity, whether to continue on the regular schedule, or to activate the fast active schedule. If the fast active schedule is activated, the receiving node sends a special acknowledge message back to the sending node, so that both nodes will transmit and receive messages over a fast active schedule link until the message buffer of the sending node has been reduced and the fast active schedule can be deactivated in favor of the regular active schedule.

    Abstract translation: 无线网状网络由具有用于发送和接收消息的常规有效时间表的节点(GW1,GW2,AF,XZ)和当存在用于传输大量消息的需求时本地激活的快速有效时间表模式 。 当每个节点向另一节点传送消息时,传送节点包括消息缓冲器队列参数,该消息缓冲器队列参数指示传送节点中未决消息队列中的消息数量。 接收节点基于接收到的消息缓冲器队列参数和其自身的容量来确定是否继续按照常规调度,或者激活快速激活调度。 如果快速激活调度被激活,则接收节点向发送节点发回特殊的确认消息,使得两个节点将通过快速有效调度链路发送和接收消息,直到发送节点的消息缓冲器已经减少,并且 快速活动时间表可以停用,以支持常规活动时间表。

    POWER MANAGEMENT SYSTEM FOR A FIELD DEVICE ON A WIRELESS NETWORK
    7.
    发明申请
    POWER MANAGEMENT SYSTEM FOR A FIELD DEVICE ON A WIRELESS NETWORK 审中-公开
    无线网络现场设备的电源管理系统

    公开(公告)号:WO2008042072A1

    公开(公告)日:2008-04-10

    申请号:PCT/US2007/019395

    申请日:2007-09-06

    Abstract: A field device includes a power control module, a network interface module that communicates over a wireless network, and a device interface module for operating transducers, such as a sensor or an actuator. The power control module controls distribution of electrical power so that the network interface module receives electrical power while it is attempting to join the wireless network. Once the network interface module has joined the wireless network, the power control module allows the network interface module and the device interface module to share electrical power.

    Abstract translation: 现场设备包括功率控制模块,通过无线网络通信的网络接口模块以及用于操作诸如传感器或致动器的换能器的设备接口模块。 功率控制模块控制电力分配,使得网络接口模块在尝试加入无线网络时接收电力。 一旦网络接口模块加入了无线网络,电源控制模块允许网络接口模块和设备接口模块共享电力。

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