Abstract
This publication describes a climate control node (e.g., a smart thermostat) that includes a hardware-isolated thermodynamic coprocessor. In an example implementation, the coprocessor intercepts or otherwise receives power-related telemetry that appliances broadcast on a local low-power mesh network and converts that telemetry into anticipated heat loads for individual zones of a building. For instance, a radio baseband may capture mesh-network frames, a hardware filter may match application-layer cluster identifiers such as electrical power measurement and device energy management clusters, and matched payloads may be transferred by direct memory access into an isolated memory buffer that the coprocessor reads. In certain examples, the coprocessor multiplies reported active power by appliance-class conversion coefficients from a look-up table to estimate sensible heat injection, integrates a lumped thermal model for each zone, and compares a forward simulation against a locally cached time-of-use tariff ledger. When the simulation indicates that appliance heat or envelope gains would carry a zone outside its comfort bounds during a peak pricing window, the node may pre-condition the zone before the window begins and hold the HVAC relays open during the window, using the structural mass of the building as a thermal mass. The approach can operate without a cloud connection, can respond (in some implementations) within milliseconds of an appliance power change, and can keep raw device power signatures on the device.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Garg, Rohan, "Hardware-Isolated Thermodynamic Coprocessor for Appliance-Aware Multi-Zone Climate Control and Anticipatory Time-of-Use Tariff Scheduling", Technical Disclosure Commons, (October 04, 2026)
https://www.tdcommons.org/dpubs_series/11948