Sentence examples for conditional observation from inspiring English sources

For each observer, the IP address, port number, URI, and refresh timer are stored for normal observe, while for conditional observation also condition information, last notified value and last notification time are stored.

As the request is an observation request, the client needs to be registered as an observer in the Conditional Observation Module for future notifications by calling a Post Handler function.

When using conditional observations in the presence of an intermediary, the possibility to aggregate different conditional observations into a single conditional observation relationship strongly depends on the condition type and associated values.

The final result shows that, Normal Observe consumed 4,936 mJ while Conditional Observe consumed 4,716 mJ showing an improvement in power consumption by using conditional observation.

Figure 5 Conditional observation.

Figure 10 Conditional Observation Module.

To avoid transmission of unwanted notifications to clients, the authors of this paper have proposed a new CoAP option 'Condition' as an extension to the Observe Option in order to support conditional observations [15].

We extended this CoAP implementation to support the new Condition option and provided some resources that allow conditional observations.

From both the experimental and theoretical results, it is evident that the conditional observations are very useful extensions to the basic observe behavior, both from an application point of view and from a network efficiency point of view.

We know that conditional observations require some additional processing for checking the condition.

In this paper, we presented the concept of conditional observations as an extension to the CoAP protocol in general and the Observe option in particular.