A CORBA-based client-server system. The requirements of the system can be broken down into a number of separate systems which will need to communicate in a client-server manner to solve the overall requirements:

1. The Monitoring Station:

The Monitoring Station is a stand-alone monitoring system, to be prototyped as a CORBA server, that supports the following functionality at least:

• Register itself with a Regional Centre upon initial activation
• Can be remotely activated
• Can be remotely deactivated
• Can be remotely reset
• Can return, upon request, the current value of the nitrogen oxides sensor
• Can identify anomalous or potentially dangerous readings of nitrogen oxides and alert the Local Server immediately.

2. Precompile the IDL. To do this open a (IntelliJ) Terminal and type:

The Local Server is to be prototyped as a CORBA server that supports the following functionality at least:

• Receives requests to register Monitoring Stations and maintains a list of connected devices
• Receives alerts from connected Monitoring Stations, and maintains a log of these alerts
• Triggers an alarm at the Environmental Centre when two alarms happen within a specified time frame
• Returns the log upon request
• Polls all connected Monitoring Stations when requested to do so, and returns a set of readings

3. The Monitoring Centre

The Monitoring Centre is to be prototyped as a CORBA server that supports the following functionality at least:

• Receives confirmed alarms from Local Servers
• Alerts the operator when a confirmed alarm is received
• Allows agencies (e.g. the Environment Agency, local councils, local pressure groups, etc.) to register for notifications in particular areas in case of alarms
• Maintains a list of connected Local Servers
• Polls all Local Servers upon request and displays the results of readings returned, highlighting readings of concern

To run the demo from IntelliJ:

1. Add all the libraries from the Jacorb lib folder to the module (NOTE - add them to the module, not the project. They are not all required, but I don't know the minmum set) AND add the jboss library too.

2. Precompile the IDL. To do this open a (IntelliJ) Terminal and type:

   cd RelayWithGUIsDemo/src <path_to_jacorb_dir>/bin/idl LocalMonitoringStation.LocalMonitoringStationUI.idl

e.g. I would type:

cd RelayWithGUIsDemo/src
/spare/jacorb-3.9/bin/idl LocalMonitoringStation.LocalMonitoringStationUI.idl

3. You can then run the different components of the system. You need to start them in the following order:

   Sensor.SensorServer LocalMonitoringStation.LocalMonitoringStationUI HeadQuarter.HeadQuarterUI