SYNTAX TRANSLATION FROM FIRST SYNTAX TO SECOND SYNTAX BASED ON STRING ANALYSIS

    公开(公告)号:US20200125043A1

    公开(公告)日:2020-04-23

    申请号:US16722439

    申请日:2019-12-20

    Inventor: Youngchoon Park

    Abstract: A computerized method of assigning a building automation system point type to a plurality of unclassified data points is provided. The method includes receiving unclassified data points and attributes for each data point. The method includes receiving classifications for a first subset of the unclassified data points. Each classification associates a data point with a building automation system point type. The method includes generating a term set containing substrings that appear in the attributes. The method includes generating a first matrix describing a frequency that the substrings appear in the attributes. The method includes calculating an indicator of a probability that the presence of the selected substring results in the data point belonging to the selected point type. The method includes assigning a point type to a second subset by finding the substring and potential point type pair having the greatest indication of probability.

    BUILDING MANAGEMENT SYSTEM WITH DISTRIBUTED DATA STORAGE AND PROCESSING

    公开(公告)号:US20200064003A1

    公开(公告)日:2020-02-27

    申请号:US16672207

    申请日:2019-11-01

    Abstract: A building management system (BMS) including device controllers configured to monitor and control one or more heating, ventilation, or air conditioning (HVAC) devices and to store and process time-series data associated with the HVAC devices. The BMS includes a BMS controller that is communicably coupled to the device controllers. The BMS controller is configured to generate and send one or more processing sub-requests to at least one of the device controllers based on a processing request requesting time-series data associated with an HVAC device. The BMS controller is configured to receive one or more processing results from the at least one of the device controllers and join the one or more processing results into a joined result. The BMS controller is configured to provide the joined result to a requesting entity. The device controllers are configured to receive and process processing sub-requests and send results to the BMS controller.

    WEB SERVICES PLATFORM WITH NESTED STREAM GENERATION

    公开(公告)号:US20190097904A1

    公开(公告)日:2019-03-28

    申请号:US16143012

    申请日:2018-09-26

    Abstract: A web services platform includes a data collector and a timeseries service. The data collector is configured to collect samples of data points and generate input timeseries including a plurality of the samples. The timeseries service is configured to identify a first timeseries processing workflow that uses the input timeseries as an input and defines processing operations to be applied to the samples of the input timeseries, perform the processing operations defined by the first timeseries processing workflow to generate a first derived timeseries comprising a first set of derived timeseries samples, identify a second timeseries processing workflow that uses the first derived timeseries as an input and defines processing operations to be applied to the samples of the first derived timeseries, and perform the processing operations defined by the second timeseries processing workflow to generate a second derived timeseries comprising a second set of derived timeseries samples.

    WEB SERVICES FOR CREATION AND MAINTENANCE OF SMART ENTITIES FOR CONNECTED DEVICES

    公开(公告)号:US20190095520A1

    公开(公告)日:2019-03-28

    申请号:US16142906

    申请日:2018-09-26

    Abstract: One or more non-transitory computer readable media containing program instructions that, when executed by one or more processors, cause the one or more processors to perform operations: generating a database of interconnected smart entities, the smart entities including object entities representing each of the plurality of physical devices and data entities representing data generated by the devices, the smart entities being interconnected by relational objects indicating relationships between the object entities and the data entities; receiving data from a first device of the plurality of physical devices; determining a second device from a relational object for the first device based on the received data; and modifying a data entity connected to an object entity of the second device within the database of smart entities based on the received data for the first device.

    HVAC SYSTEM WITH TIMESERIES DIMENSIONAL MISMATCH HANDLING

    公开(公告)号:US20180195748A1

    公开(公告)日:2018-07-12

    申请号:US15400931

    申请日:2017-01-06

    Abstract: A heating, ventilation, or air conditioning (HVAC) system for a building includes a plurality of actuation devices, a plurality of sensors, and a controller. The actuation devices receive actuation signals and operate in accordance with the actuation signals to affect one or more variables in the building. The sensors measure the variables affected by the actuation devices and provide sensor response signals including values of the measured variables. The controller generates actuation signal timeseries including samples of the actuation signals and sensor response timeseries including samples of the sensor response signals. The controller applies a discrete cosine transformation (DCT) to each actuation signal timeseries and each sensor response timeseries. Each DCT generates a set of DCT coefficients. The controller identifies a similarity between two or more of the actuation signal timeseries and the sensor response timeseries by comparing the DCT coefficients resulting from the DCTs.

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