QoS Manager

QoS Manager is a stand-alone component interfacing the OpenIoT Cloud Broker (CB) (part of the CUPUS middleware) and [X-GSN]. It has three key functionalities:

(1) QoS subscription monitoring and management, whereby the QoS Manager aggregates multiple sensor data subscriptions (queries) and determines global application requirements with respect to sensor data acquisition;

(2) QoS publication monitoring and management, whereby the QoS Manager aggregates monitored sensor data publications, and manages the sensor data acquisition in order to optimize energy and bandwidth consumption while meeting application requirements;

(3) QoS collects all sensor readings and forwards them to the OpenIoT cloud database, by using X-GSN.

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Service Name	Input	Output	Info
setBatteryLevels	double highBatteryLevel, double lowBatteryLevel	void	A method used to set high and low battery level boundaries.
setNumberOfActive Sensors	int numberOfActive Sensors	void	A method used to set maximal number of active sensors in the observed area.
getAllAvailableSensors		Set	Used to get all currently announced sensors in the system.
defineNewSubscriptionInArea	String area	void	Used to subscribe on all available data types in the specific area.
getAllSensorsInArea	String area	Set	Used to get all sensors announced in the specific area.
getActiveSensorsInArea	String area	Set	Used to get all active sensors in the specific area.
getAllSubscriptionsInArea	String area	List	Used to get all end-user subscriptions in the specific area.
getAverageSensorReadingsInArea	String area	Hashtable Publication	A method used to get average sensor readings in the observed area.
getLatLongFromArea	String area	List	A method used to return latitude and longitude for the specific area.
getAreaFromLatLong	float lat,float lng, int accuracy	String	A method used to return area for the specific latitude and longitude.