Patents by Inventor Sridhar Venkatesh
Sridhar Venkatesh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11940165Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: GrantFiled: March 22, 2022Date of Patent: March 26, 2024Assignee: Lennox Industries Inc.Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Patent number: 11920809Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: GrantFiled: March 22, 2022Date of Patent: March 5, 2024Assignee: Lennox Industries Inc.Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Patent number: 11802704Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: GrantFiled: March 22, 2022Date of Patent: October 31, 2023Assignee: Lennox Industries Inc.Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Publication number: 20230332790Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: ApplicationFiled: June 23, 2023Publication date: October 19, 2023Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Patent number: 11774129Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: GrantFiled: March 22, 2022Date of Patent: October 3, 2023Assignee: Lennox Industries Inc.Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Publication number: 20230304685Abstract: A heating, ventilation, and air conditioning (HVAC) control device is configured to record a plurality of actual occupancy statuses, to determine a plurality of corresponding predicted occupancy statuses, and to compare the plurality of predicted occupancy statuses to the plurality of actual occupancy statuses. The device is further configured to identify conflicting occupancy statuses based on the comparison. A conflicting occupancy status indicates a difference between an actual occupancy status and a corresponding predicted occupancy status. The device is further configured to identify timestamps corresponding with the conflicting occupancy statuses, to identify historical occupancy statuses corresponding with the identified timestamps, and to update the conflicting occupancy statuses in the predicted occupancy schedule with the historical occupancy statuses.Type: ApplicationFiled: June 2, 2023Publication date: September 28, 2023Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Patent number: 11708983Abstract: A heating, ventilation, and air conditioning (HVAC) control device is configured to record a plurality of actual occupancy statuses, to determine a plurality of corresponding predicted occupancy statuses, and to compare the plurality of predicted occupancy statuses to the plurality of actual occupancy statuses. The device is further configured to identify conflicting occupancy statuses based on the comparison. A conflicting occupancy status indicates a difference between an actual occupancy status and a corresponding predicted occupancy status. The device is further configured to identify timestamps corresponding with the conflicting occupancy statuses, to identify historical occupancy statuses corresponding with the identified timestamps, and to update the conflicting occupancy statuses in the predicted occupancy schedule with the historical occupancy statuses.Type: GrantFiled: October 20, 2021Date of Patent: July 25, 2023Assignee: Lennox Industries Inc.Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Patent number: 11644204Abstract: A heating, ventilation, and air conditioning (HVAC) control device is configured to record a plurality of actual occupancy statuses, to determine a plurality of corresponding predicted occupancy statuses, and to compare the plurality of predicted occupancy statuses to the plurality of actual occupancy statuses. The device is further configured to identify conflicting occupancy statuses based on the comparison. A conflicting occupancy status indicates a difference between an actual occupancy status and a corresponding predicted occupancy status. The device is further configured to identify timestamps corresponding with the conflicting occupancy statuses, to identify historical occupancy statuses corresponding with the identified timestamps, and to update the conflicting occupancy statuses in the predicted occupancy schedule with the historical occupancy statuses.Type: GrantFiled: October 20, 2021Date of Patent: May 9, 2023Assignee: Lennox Industries Inc.Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Patent number: 11609014Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to generate the machine learning model using the first set of weights and the second set of weights. The machine learning model is configured to output a probability that a user is present at the space based on an input that identifies a day of the week and a time of a day. The device is further configured to determine a probability that a user is present at the space for a predicted occupancy schedule using the machine learning model, to determine an occupancy status based on a determined probability that a user is present at the space, and to set a predicted occupancy status in the predicted occupancy schedule based on a determined occupancy status for each time entry. The device is further configured to output the predicted occupancy schedule.Type: GrantFiled: November 10, 2021Date of Patent: March 21, 2023Assignee: Lennox Industries Inc.Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Patent number: 11598542Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to collect event data from the one or more devices and to populate time entries in an occupancy history log with the event data. The event data includes a timestamp indicating a time when an event occurred, a set point temperature value for the HVAC system, and an occupancy status indicating whether a space is occupied. The device is further configured to identify blank time entries in the occupancy history log and to populate the blank time entries by forward filling the occupancy history log using event data from another time entry in the occupancy history log. The device is further configured to output the populated occupancy history log.Type: GrantFiled: December 31, 2019Date of Patent: March 7, 2023Assignee: Lennox Industries Inc.Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Patent number: 11573022Abstract: A device configured to operate a Heating, Ventilation, and Air Conditioning (HVAC) system and to receive an audio signal from a microphone while operating HVAC system. The device is further configured to generate a representation of the audio signal, to compare one or more audio signatures to the representation of the audio signal, and to determine that an audio signature from among the one or more audio signatures is not present within the representation of the audio signal. The device is further configured to determine a fault type that is associated with the audio signature that is not present within the representation of the audio signal, to identify a component identifier for a component of the HVAC system that is associated with fault type, and to output the component identifier.Type: GrantFiled: February 23, 2021Date of Patent: February 7, 2023Assignee: Lennox Industries Inc.Inventors: Payam Delgoshaei, Sridhar Venkatesh, Glenn William Kowald, Eric Berg, Janathkumar Manohararaj, Jeffrey Fontenault
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Publication number: 20220268469Abstract: A device configured to operate a Heating, Ventilation, and Air Conditioning (HVAC) system and to receive an audio signal from a microphone while operating HVAC system. The device is further configured to generate a representation of the audio signal, to compare one or more audio signatures to the representation of the audio signal, and to determine that an audio signature from among the one or more audio signatures is not present within the representation of the audio signal. The device is further configured to determine a fault type that is associated with the audio signature that is not present within the representation of the audio signal, to identify a component identifier for a component of the HVAC system that is associated with fault type, and to output the component identifier.Type: ApplicationFiled: February 23, 2021Publication date: August 25, 2022Inventors: Payam Delgoshaei, Sridhar Venkatesh, Glenn William Kowald, Eric Berg, Janathkumar Manohararaj, Jeffrey Fontenault
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Patent number: 11415470Abstract: A method of monitoring a HVAC system to detect erroneous sensor installation. The method includes determining whether a circulation fan has been operational for a first predetermined time interval. If the circulation fan has been operational for the first predetermined time interval, determining whether a cooling demand is present. If the cooling demand is present, determining whether the HVAC system has been conditioning air for the first predetermined time interval responsive to the cooling demand. If the HVAC system has been conditioning the air for the first predetermined time interval, determining whether a difference between an indoor air temperature value corresponding to an enclosed space and an air temperature value from a discharge air temperature (DAT) sensor is greater than a predetermined temperature value.Type: GrantFiled: February 7, 2020Date of Patent: August 16, 2022Assignee: Lennox Industries Inc.Inventors: Payam Delgoshaei, Sridhar Venkatesh, Glenn W. Kowald, Lars Noergaard Oernbo
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Publication number: 20220221178Abstract: An adaptive Heating, Ventilation, and Air Conditioning (HVAC) control device configured to identify timestamps over a time period when a space is unoccupied, to identify a set point temperature for each timestamp, and to train a machine learning model using the timestamps and corresponding set point temperatures. The device is further configured to determine a timestamp that corresponds with the current day, to input the timestamp into the machine learning model, and to obtain HVAC control settings from the machine learning model in response to inputting the timestamp into the machine learning model. The HVAC control settings include a return time and a set point temperature. The device is further configured to operate the HVAC system at the set point temperature until the return time.Type: ApplicationFiled: January 12, 2021Publication date: July 14, 2022Inventors: Rohini Brahme, Sridhar Venkatesh
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Publication number: 20220214065Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: ApplicationFiled: March 22, 2022Publication date: July 7, 2022Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Publication number: 20220214066Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: ApplicationFiled: March 22, 2022Publication date: July 7, 2022Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Publication number: 20220214063Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: ApplicationFiled: March 22, 2022Publication date: July 7, 2022Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Publication number: 20220214064Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: ApplicationFiled: March 22, 2022Publication date: July 7, 2022Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Patent number: 11320165Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to receive a user input for controlling an HVAC system, to determine whether the user input indicates an energy saving occupancy setting, and to identify a first plurality of time entries that are associated with a confidence level for a predicted occupancy status that is less than a predetermined threshold value in the predicted occupancy schedule. The device is further configured to modify the predicted occupancy schedule by setting the first plurality of time entries to an away status when the user input indicates an aggressive energy saving occupancy setting. The device is further configured to modify the predicted occupancy schedule by setting the second plurality of time entries to a present status when the user input indicates a conservative energy saving occupancy setting. The device is further configured to output the modified predicted occupancy schedule.Type: GrantFiled: December 31, 2019Date of Patent: May 3, 2022Assignee: Lennox Industries Inc.Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj
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Publication number: 20220065478Abstract: A heating, ventilation, and air conditioning (HVAC) control device configured to generate the machine learning model using the first set of weights and the second set of weights. The machine learning model is configured to output a probability that a user is present at the space based on an input that identifies a day of the week and a time of a day. The device is further configured to determine a probability that a user is present at the space for a predicted occupancy schedule using the machine learning model, to determine an occupancy status based on a determined probability that a user is present at the space, and to set a predicted occupancy status in the predicted occupancy schedule based on a determined occupancy status for each time entry. The device is further configured to output the predicted occupancy schedule.Type: ApplicationFiled: November 10, 2021Publication date: March 3, 2022Inventors: Sridhar Venkatesh, Payam Delgoshaei, Janathkumar Manohararaj