Web Energy Analyzer (WEA)

Details

Schematic of WEA  (widely distributed data acquisition system )

Terminology:

Measuring Location (location of a subsystem )
- Measurement setup on a given location (WEA Box + Sensors)

WEA BOX

- Main controller of a Measuring Location
Sends and receives data from the Internet (reads the sensors and controls the executive modules e.g. relays, servos, etc.)
  
WEA BOX is protected by User Name and Password

Identifier: WEA Box Name

Connections:
Local Direction:
- Sensors and Executive Modules
- Wired LAN
- Wireless LAN
Remote Direction:
- Internet (to the local Router)

Physical Data Channel

- Outputs value of a Sensor in a given unit

Identifier: Channel Name

Virtual Channel

- Derived data computed from one or more Physical Data Channels

Identifier: Virtual Channel Name

Manual Channel

- Data Series entered by human interaction (e.g. reading off-line meters)

Identifier: Manual Channel Name

Graph

- Graphical representation of one or more Channels

Identifier: Graph Name
Available Operation: New, Edit, View, Remove

Plot – Data Series

- Plot representing a Data Series of a single Channel

Identifier: Plot Name
Available Operation: New, Edit, View, Remove

WEA Devices

WEA Box equipped with Sensors and Executive Modules for a given measuring/controlling function



WEA Box


Temperature Sensor


Counter for pulse outputs


Solar Intensity Meter

WEA BOX is more or less preconfigured.
Installation begins by connecting the Sensors to the Signal Bus. After double-checking everything WEA is ready for connection to the Internet (usually to a port of the local router).
From this moment WEA starts collecting the sensor-data in every 1 minutes and sends the data packets to  the corresponding box of the centralised Data Base. The new Channel Data appear among the others and get displayed on the Graphs.

The owner of  the WEA Box can configure the properties of the Channels and the appearance of the Graphs that may contain several Plots (Channel Data).