wiesshart快速采集:用于间歇性现场设备的分散方法

I. Müller, J. Winter, C. Pereira, J. Netto
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引用次数: 5

摘要

WirelessHART协议是专门为工业应用而设计的,可在恶劣环境下实现安全、可靠和实时的通信。它的集中管理产生了所有的通信调度和路由,这反过来又允许低功耗和低成本的现场设备,足以适应缓慢和静态的网络。这是过程控制应用程序的典型情况。然而,该协议的缓慢动态避免了使用移动或间歇性设备,例如机器人和便携式设备进行工厂协调或检查。本文介绍了一种带有网络协处理器的专用现场设备。协处理器能够本地管理网络事件,并与可作为接入点的改进现场设备一起,具有处理间歇性网络事件的能力。最后介绍了该装置的开发过程,并给出了一个案例研究的结果。
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WirelessHART Fast Collect: A decentralized approach for intermittent field devices
The WirelessHART protocol was designed from scratch specifically for industrial applications, allowing secure, reliable, and real time communications in harsh environments. Its centralized management produces all the communication scheduling and routing, which in turns allows low power and low cost field devices, adequate for slow and static networks. This is typically the case of process control applications. However, the slow dynamics of this protocol avoids the usage of mobile or intermittent devices, such as robots and portable devices for plant coordination or inspection. This paper introduces a special field device that has a network coprocessor incorporated. The coprocessor is able to locally manage network events and, together with a modified field device that can act as an access point, it has the ability to cope with intermittent network events. The device development is described as well as a case study whose results are presented at the end.
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