Integrating an Industrial Wireless Sensor Network with Your Plant's Switched Ethernet and IP Network
This paper discusses the main areas that require specific engineering attention as wireless sensors are added to the network infrastructure in a factory or a campus.
Wireless sensor networks (WSNs) are gaining market acceptance in numerous industrial segments because they are both cheaper and faster to deploy than traditional wired field-buses. WSNs can also offer incremental value from a variety of additional usages by leveraging the entire network to connect the sensors to a centralized controlling application for supervisory control or logging. However, a number of issues are raised when integrating a proprietary network operated by process control with tight response time and availability constraints, into a wider, more complex IT network that already supports a large number of applications with wireless, switched, and IP technologies.
This white paper will discuss:
- Coexistence between the WSN and the enterprise Wi-Fi network over the common public band of 2.4 GHz
- Security measures to protect the wireless media
- Network high availability to ensure that critical sensor data are transported safely when a switched radio and wired network replaces a point-to-point field bus
- Guaranteed bandwidth and quality of service (QoS) for both the existing traffic and the new sensor traffic to protect the real-time sensor data
- Flow isolation to prevent cross influence between the various flows (voice, sensor data, entries data, visitors)
- Next-generation readiness with IPv6
For each of these areas, we discuss the situation in detail and propose a number of practical solutions that have been studied or deployed in different yet similar situations.
Author: Cisco, Emerson | File Type: PDF