– Definition of Programmable Communicating Thermostat:
– Term used by California Energy Commission
– Describes thermostats receiving information wirelessly
– Introduced in 2008 building standards
– Initially included blackout avoidance feature
– Public input led to removal of the feature
– Security Features of Programmable Communicating Thermostat:
– Public key encryption scheme discussed in 2008
– Each thermostat assigned a random 160-bit number
– Operator sends public key to thermostat over RDS
– Ensures messages only from approved operators
– Enhances security and privacy for users
– Communication Methods of Programmable Communicating Thermostat:
– Wireless communication through the Internet
– Utilization of home automation technology like Insteon
– Allows remote adjustment via computer or phone
– Enables temperature control without physical presence
– Enhances convenience and accessibility for users
– Evolution of Programmable Communicating Thermostat Technology:
– Advancements in thermostat communication capabilities
– Integration with smart home systems
– Improved energy efficiency features
– Enhanced user interface for better control
– Contribution to overall home automation trends
– Potential for Expansion and Development of Programmable Communicating Thermostat:
– Opportunities for further technological enhancements
– Integration with emerging IoT devices
– Potential for increased energy savings
– Adoption in commercial and residential settings
– Continuous innovation in thermostat technology
The term programmable communicating thermostat (PCT) is used by the California Energy Commission to describe programmable thermostats that can receive information wirelessly.
The first version of the PCT introduced in the 2008 building standards proceeding also required that PCTs allow temperature control during emergency events to avoid blackouts. This feature was removed after public input indicated a strong fear of the non-overrideable "big brother" feel of this feature.
A talk at the S4 SCADA security conference in January 2008 indicated adding a public key encryption scheme to the specification, giving each thermostat a random 160-bit number. The installer or homeowner would call this number in to the utility or other service provider (operator), who would then send the Operator's public key to the thermostat over RDS. Using this method, the PCT would receive messages only from the operator(s) explicitly agreed to by the homeowner.
Thermostats can also communicate wirelessly through the Internet or via a home automation technology, such as Insteon. These advanced thermostats can be adjusted via computer or Internet capable phone to allow users to adjust the temperature in their home without being present.
