System Description and Operation

The system is distinguished by a full closed loop interoperation between its components. The customer buys energy, receives a token, enters the token into his meter and the actual consumption of the meter is fed back to the server station through the hand held unit that reads the meter and transfer the data back to the server to complete the loop.

The system main functions are:

• Data is centralized into the server and shared online with the vending stations.
• Purchase is made at the vending stations. The generated token is encrypted and can only be entered into the buying customer’s own meter.
• The meter is specially designed with a keypad interface. When charged, the entered token is decrypted and the units bought add up to the existing amount in the meter.
• Meters data collection is processed remotely through the HHU to be transferred to the server station.
• A reconciliation procedure is then initiated for every customer at the end of each month.