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公开(公告)号：US20210190364A1
公开(公告)日：2021-06-24
申请号：US16725961
申请日：2019-12-23
Applicant: Johnson Controls Technology Company
Inventor： Young M. Lee , Zhanhong Jiang , Viswanath Ramamurti , Sugumar Murugesan , Kirk H. Drees , Michael James Risbeck
Abstract: Systems and methods for training a reinforcement learning (RL) model for HVAC control are disclosed herein. Simulated experience data for the HVAC system is generated or received. The simulated experience data is used to initially train the RL model for HVAC control. The HVAC system operates within a building using the RL model and generates real experience data. A determination may be made to retrain the RL model. The real experience data is used to retrain the RL model. In some embodiments, both the simulated and real experience data are used to retrain the RL model. Experience data may be sampled according to various sampling functions. The RL model may be retrained multiple times over time. The RL model may be retrained less frequently over time as more real experience data is used to train the RL model.
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公开(公告)号：US20210056452A1
公开(公告)日：2021-02-25
申请号：US16549037
申请日：2019-08-23
Applicant: Johnson Controls Technology Company
Inventor： Sugumar Murugesan , Young M. Lee
Abstract: A building system for building data point prediction, the building system comprising one or more memory devices configured to store instructions, that, when executed by one or more processors, cause the one or more processors to receive first building data for a building data point of a building and generate training data, the training data comprising a probability distribution sequence comprising a first probability distribution for the building data point. The instructions cause the one or more processors to train a prediction model based on the training data, receive second building data for the building data point, and predict, for one or more time-steps into the future, one or more second probability distributions with the second building data based on the prediction model, each of the one or more second probability distributions being a probability distribution for the building data point at one of the one or more time-steps.
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公开(公告)号：US20210056386A1
公开(公告)日：2021-02-25
申请号：US16549656
申请日：2019-08-23
Applicant: Johnson Controls Technology Company
Inventor： Sugumar Murugesan , Young M. Lee
Abstract: A building system for generating input forecast data. The building system comprising one or more memory devices configured to store instructions thereon that, when executed by one or more processors, cause the one or more processors to retrieve a current prediction set of measurements comprising current values associated with a plurality of time-steps; identify time-steps of the plurality of time-steps for which historical prediction values of a historical prediction set of measurements are outside of a tolerance of corresponding historical actual values of a historical actual set of measurements; replace each current value of the current prediction set of measurements that is associated with the identified time-steps with a predetermined value to generate an updated prediction set of measurements; and provide the updated prediction set of measurements to a prediction model.
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公开(公告)号：US12282883B2
公开(公告)日：2025-04-22
申请号：US16725644
申请日：2019-12-23
Applicant: Johnson Controls Technology Company
Inventor： Jaume Amores , Young M. Lee , Sugumar Murugesan , Steven R. Vitullo
Abstract: A method of generating a fault determination in a building management system (BMS), the method including receiving signal data, generating, using a number of fault detection models, a number of fault indications based on the signal data, generating, using a weighting function, based on the number of fault indications, a fault score, comparing the fault score to a fault value, and determining, based on the comparison, an existence of a fault.
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公开(公告)号：US20210190354A1
公开(公告)日：2021-06-24
申请号：US16725952
申请日：2019-12-23
Applicant: Johnson Controls Technology Company
Inventor： Jaume Amores Llopis , Young M. Lee , Sugumar Murugesan , Steven R. Vitullo
Abstract: A building system for detecting faults in an operation of building equipment. The building system comprising one or more memory devices configured to store instructions thereon that cause the one or more processors to perform a cumulative sum (CUSUM) analysis on actual building data and corresponding predicted building data to obtain cumulative sum values for a first plurality of times within a first time period; analyze cumulative sum values associated with a second plurality of times occurring before the first time to identify a second time of the second plurality of times at which a second cumulative sum value is at a local minimum; and determine that a first fault began at the second time.
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Patent Agency Ranking
公开(公告)号：US20210056409A1
公开(公告)日：2021-02-25
申请号：US16549744
申请日：2019-08-23
Applicant: Johnson Controls Technology Company
Inventor： Sugumar Murugesan , Young M. Lee
Abstract: A building system for training a prediction model with augmented training data. The building system comprising one or more memory devices configured to store instructions thereon that, when executed by one or more processors, cause the one or more processors to obtain a first training data set comprising data values associated with a data point of the building system and with a plurality of time-steps and energy values associated with consumption of the building system at each of the plurality of time-steps; generate an augmented training data set comprising a second training data set, the second training data set comprising the energy values and the data values of the first training data set but with a data value replaced with a predetermined value at a time-step of the plurality of time-steps; and generate a prediction model by training the prediction model.
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7.发明申请公开(公告)号：US20190385070A1
公开(公告)日：2019-12-19
申请号：US16198456
申请日：2018-11-21
Applicant: Johnson Controls Technology Company
Inventor： Young M. Lee , Sugumar Murugesan , ZhongYi Jin , Jaume Amores , Kelsey Carle Schuster , Steven R. Vitullo , Henan Wang
Abstract: A chiller fault prediction system for a building, including one or more memory devices and one or more processors. The one or more memory devices are configured to store instructions to be executed on the one or more processors. The one or more processors are configured to receive chiller data for a plurality of chillers, the chiller data indicating performance of the plurality of chillers. The one or more processors are configured to generate, based on the received chiller data, a plurality of single chiller prediction models and a plurality of cluster chiller prediction models, the plurality of single chiller prediction models generated for each the plurality of chillers and the plurality of cluster chiller prediction models generated for chiller clusters of the plurality of chillers. The one or more processors are configured to label each of the plurality of single chiller prediction models and the plurality of cluster chiller prediction models as an accurately predicting chiller model or an inaccurately predicting chiller model based on a performance of each of the plurality of single chiller prediction models and a performance of each of the plurality of cluster chiller prediction models. The one or more processors are configured to predict a chiller fault with each of the plurality of single chiller prediction models labeled as the accurately predicting chiller models. The one or more processors are configured to predict a chiller fault for each of a plurality of assigned chillers assigned to one of a plurality of clusters labeled as the accurately predicting chiller model.
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8.发明申请公开(公告)号：US20190383510A1
公开(公告)日：2019-12-19
申请号：US16198377
申请日：2018-11-21
Applicant: Johnson Controls Technology Company
Inventor： Sugumar Murugesan , Young M. Lee , Zhong Yi Jin , Jaume Amores
Abstract: A chiller threshold management system for a building, including one or more memory devices and one or more processors. The one or more memory devices are configured to store instructions to be executed on the one or more processors. The one or more processors are configured to determine whether chiller fault data exists in chiller data used to generate a plurality of chiller prediction models. The one or more processors are further configured to generate a first threshold evaluation value for each of the plurality of chiller prediction models using a first evaluation technique in response to a determination that chiller fault data exists in the chiller data, and generate a second threshold evaluation value for each of the chiller prediction models using a second evaluation technique in response to a determination that chiller fault data does not exist in the chiller data. The one or more processors are configured to select a first threshold for each of the plurality of chiller prediction models based on the first threshold evaluation values in response to the determination that chiller fault data exists in the chiller data, and select a second threshold for each of the plurality of chiller prediction models based on the second threshold evaluation values in response to the determination that chiller fault data does not exist in the chiller data.
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公开(公告)号：US20190353379A1
公开(公告)日：2019-11-21
申请号：US15981181
申请日：2018-05-16
Applicant: Johnson Controls Technology Company
Inventor： Young M. Lee , Viswanath Ramamurti , Youngchoon Park , Sugumar Murugesan
Abstract: A building management system includes one or more processors, and one or more computer-readable storage media communicably coupled to the one or more processors and having instructions stored thereon that cause the one or more processors to: receive utterance data from a voice assist device; determine a location of the voice assist device; analyze the utterance data to identify a sentiment relating to a temperature of the location; and control an HVAC system to adjust the temperature of the location based on the sentiment.
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10.发明申请公开(公告)号：US20190353378A1
公开(公告)日：2019-11-21
申请号：US15980547
申请日：2018-05-15
Applicant: Johnson Controls Technology Company
Inventor： Viswanath Ramamurti , Young M. Lee , Youngchoon Park , Sugumar Murugesan
Abstract: A building management system includes one or more processors, and one or more computer-readable storage media communicably coupled to the one or more processors and having instructions stored thereon that cause the one or more processors to: define a state of a zone or space within a building; control an HVAC system to adjust a temperature of the zone or space corresponding to a first action; receive utterance data from a voice assist device located in the zone or space; analyze the utterance data to identify a sentiment relating to the temperature of the zone or space; calculate a reward based on the state, the first action, and the sentiment; determine a second action to adjust the temperature of the zone or space based on the reward; and control the HVAC system to adjust the temperature of the zone or space corresponding to the second action.
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