If you’re working in a facility without a great deal of—or any—wireless sensors in place, you might be suspicious about the viability of wireless sensor networks. To help illustrate how ubiquitous wireless sensors have become across industry, following are a few examples of wireless sensor deployments that have become so common that they could be considered textbook application examples.
- Wireless limit switch networks are commonly used to prevent the overflow of liquid storage tanks.它们的操作很简单:随着储罐的填充,流体水平会迫使极限开关位置发生变化。然后,无线限制开关将信号发送到泵控制器,以开始泵出水箱以降低电平。当流体水平降至安全水平时,开关然后将信号发送给控制器以关闭泵。
- The safety and security of oil pipelines is largely handled by wireless sensor networks,库珀工业公司无线业务部门副总裁兼总经理史蒂夫·托德塔(Steve Toteda)表示,无线工业网络联盟(WINA)的董事长。他说:“我们现在在墨西哥做很多工作,以监视和维护石油管道。”“在这些应用程序中,有一个网络工具的层次结构,其中包括传感器网络与管道本身上的仪器一起使用,以捕获数据并通过高速回程将其传输回控制系统。这种技术的组合(无线,无线和蜂窝)确实使无线陷入了最前沿,因为您正在混合多种技术来监视20-30公里段的管道。当您使用几个部分进行此操作时,您可以有效地监视数百公里的管道。
- A major pharmaceutical manufacturer recently decided to instrument all of its R&D equipment,孵化器和cryofreezers等,并连接them to the company’s control systems for 24/7/365 monitoring. Because much of this equipment has casters, it was difficult to wire them, as they need to be moved around. This project is still ongoing, but there are currently nearly 2,000 pieces of equipment equipped with wireless sensors on the company’s R&D campus, which covers an area of about 1.5 km.
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