Presenter: Tom Phillips

 

STS Enhancements

• Initial concepts

• Market requirements

• International standardization

• Enhanced functionality

• The way forward

Overview

• Working group constituted (August 2002)

• User requirements collated (Feb 2003)

• Concepts formulated (Oct 2003)

• STS Standardization commenced (2004)

• STS Enhancement reformatting (Nov 2005)

Historical roadmap

• Backward compatibility• Existing one-way token transfers

• Unit credit transfer

• Meter specific management tokens

• Numeric & Magnetic card token technologies

User requirements

• Bulk data transfers• Meter configuration tables• Tariff tables• Feedback information• Consumption feedback data

User requirements

• Meter feedback data• Meter capability

• Default consumption feedback

• Specific detailed information

• Meter status

• Customer profile information

User requirements

• Dual key management

User requirements

• Facilitates zoning

• Simplifies field maintenance

• Assists management

• Token carriers• Numeric

• Magnetic card

• Dallas iButtons

• Smartcards

• Wireless / PLC carrier technologies

User requirements

• Adoption of a Virtual Meter Model

• Separation of STS Enhancement Standard and Companion specifications

• Translation and acceptance of STS into an IEC format

• Implications for vending (POS), key management, meter, and meter certification

Format standardization

Virtual meter model

STS reference model

• Service types supported:• Electricity (currency and units)

• Water (currency and units)

• Gas (currency and units)

• Connection time (currency and units)

• Heat (currency only)

Enhanced functionality

• Functionality enhancements• In-line water meters

• End-of-line water meters

• Energy / water balancing

• Maximum demand meters

• Time of use meters

• Line quality information

• Load control

Enhanced functionality

• Encryption algorithms• STA• Single DES• Triple DES

• Key management• Existing key management centre• Secure module upgrades• Key management centre upgrade

Enhanced functionality

• Introduction of the UML format• Finalisation of meter objects• Definition of meter object processes• Detailing the extensions to

IEC62055-41, IEC 62055-51• Submission to the STS Association

board by December 2006

The way forward