Wireless Sensor Networks Are Taking Over

摘要

In many ways, testing a WSN is much like testing any packet-based communications network. However, network characteristics such as ultralow-power consumption, a hierarchy of node types, and a need for very high security can create challenges in addition to those usually addressed by protocol analyzers and traffic generators. Perhaps the most familiar WSN from the test point of view is the Arch Rock system. Although it actually is wireless, it behaves like a standard IPv6 network. At this stage in WSN development, a large number of protocols are in use. As the market matures, this number should decrease. It also will be affected by standardization initiatives such as ISA-SP100. WSNs have progressed well beyond being interesting curiosities. In many cases, they are the preferred solution. In addition to HVAC, process control, and industrial automation, WSNs are finding their way into applications as diverse as parking garage CO_2 monitoring (Green-Peak) and evaluating the temperature control of the penguin habitat at the Pittsburgh Zoo (Sensicast Systems).