Smart-home proxy devices with long-polling
US10732651B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2017 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jun 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/2841
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems facilitate network communications between a wireless network-connected thermostat and a cloud-based management server in a manner that promotes reduced power usage and extended service life of an energy-storage device of the thermostat, while at the same time accomplishing timely data transfer between the thermostat and the cloud-based management server for suitable and time-appropriate control of an HVAC system. The thermostat further comprises powering circuitry configured to: extract electrical power from one or more HVAC control wires in a manner that does not require a “common” wire; supply electrical power for thermostat operation; recharge the energy-storage device (if needed) using any surplus extracted power; and discharge the energy-storage device to assist in supplying electrical power for thermostat operation during intervals in which the extracted power alone is insufficient for thermostat operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.