Adam's Internet of Things Weblog: Final Project: Service Specifications and IOT level

Here are all of the high-level overviews of the services I intend to create for my air quality monitor. There are a total of 4.

GasReadingService runs on a schedule on each node (10 seconds), gets a reading from the sensor and sends the value to ReadingSendingService for delivery.
ReadingSendingService sends the timestamped reading from GasSendingService, along with a unique identifier for the node the reading originated on. This contacts a RESTful endpoint on the central control node.
CentralDataCollectionService runs on the central control node and accepts the GasLevelReading values as POST data from the ReadingSendingService. If everything checks out, it stores the values in a database. The service also provides an interface to get a series of GasLevelReading objects back out of the database given a node identifier and a timestamp series.
CentralDataDisplayService runs an HTTP front-end that users interact with. Through the interface, users supply a set of nodes they are interested in and a timestamp range, and the CentralDataCollectionService is contacted to get these values. The display service then renders a graph to give the user the data requested.

Finally, this system will be operating at IoT Level 4. This is because there are more than 1 nodes collecting data, running independent of one another, which send the values to a central location for storage and analysis.