Honeywell International Inc.
Validating a task being performed on an HVAC system

Abstract:

Validating a task being performed on an HVAC system is described herein. One system includes a plurality of control devices associated with a heating, ventilation, and air conditioning (HVAC) system, wherein each respective control device is configured to record an action, taken by that control device as part of a task being performed on the HVAC system, as a block in a block chain for the task, send the block to the other control devices for validation of the action in the block chain for the task, update, upon the validation of the recorded action, the block chain for the task with the block having the recorded action, and store the updated block chain for the task.