Abstract: A sky sensor device for measuring direct normal illuminance (DNE) value is described. One sky sensor device includes a camera sensor to capture a series of images, an illuminance sensor to measure illuminance, and a processing device coupled to the camera sensor and the illuminance sensor. The processing device determines a DNE value using the series of images and the illuminance.

Abstract: A overcharge-aware electrochromic device driver for preventing overcharge of an electrochromic device is described. One driver applies a constant supply current to an electrochromic device from a power supply. The driver determines an amount of charge as a function of time and current supplied to the electrochromic device. The driver determines whether the amount of charge reaches an overcharge limit before a sense voltage reaches a first sense voltage limit. Responsive to the amount of charge reaching the overcharge limit, the driver sets the sense voltage as a second sense voltage limit that is lower than the first sense voltage limit, ceases the constant supply current, and applies one of a variable voltage or a variable current to the electrochromic device from the power supply to maintain the sense voltage at the second sense voltage limit.

Abstract: A system includes a gateway having a memory, and a processing device coupled to the memory. The processing device is to identify a first subset of a data stream associated with a smart window system. The first subset of the data stream includes sensor data that has changed more than a threshold amount. Responsive to identifying the first subset of the data stream, the processing device is to transmit the first subset of the data stream to a server device. The server device is to generate one or more instructions based on the first subset of the data stream. Responsive to receiving the one or more instructions from the server device, the processing device is to cause one or more electrochromic devices to be controlled based on the one or more instructions.

Abstract: An apparatus for supplying power to a set of drivers that charge and discharge a set of electrochromic devices is described. One apparatus includes a multi-source power supply with at least a set of batteries, a driver interface to supply the power to the set of drivers and controller circuitry. The controller circuit determines a power state of the multi-source power supply. The controller circuit limits the set of drivers to a first total amount of power or a second total amount of power, supplied by the multi-source power supply in a switching state of at least one of the set of electrochromic devices, while the multi-source power supply is in a first power state or a second power state, respectively.

Abstract: A method includes receiving data from components of a smart window system and, responsive to determining that a first portion of the data corresponds to a first identifier, storing the first portion of the data in association with the first identifier. The method further includes receiving, via a graphical user interface (GUI) presented on a user device, a view request and, responsive to determining that the view request corresponds to the first identifier, retrieving the first portion of the data. The method further includes causing the GUI to be modified to display the first portion of the data and, responsive to user interaction with the GUI that was modified based on the view request, receiving, via the GUI presented on the user device, a change request to implement a change associated with electrochromic windows. The method includes causing a first component to implement the change associated with the electrochromic windows.

Abstract: A method includes identifying, by a processing device based on an electronic model of at least a portion of a building, a plurality of components of a smart window system. Responsive to a first component of the plurality of components being replaced by a new component, the method includes causing the new component to be configured based on one or more of a first physical linking, a first network linking, or an application linking of the first component. The method further includes updating a graphical user interface (GUI) based on the new component that has been configured based on the one or more of the first physical linking, the first network linking, or the application linking of the first component.

Abstract: A distributed energy management system (EMS) for supplying power to a set of drivers that charge and discharge a set of electrochromic devices is described. One distributed EMS includes an external power supply interface to couple to an external power supply, a multi-device boost power supply comprising a set of batteries, and a driver interface to supply power to a set of drivers that charge and discharge a set of electrochromic devices. The distributed EMS also includes a communication subsystem to communicate with the set of drivers and EMS circuitry to supply power to the set of drivers, via the driver interface, based on a power state of the multi-device boost power supply and a state of the set of electrochromic devices.

Abstract: A method includes identifying components of a smart window system. The components include electrochromic devices, drivers, and one or more gateways. Each of the drivers is to control a corresponding electrochromic device and each of the drivers is to receive instructions from a server device via a corresponding gateway. The method further includes determining physical linking, network linking, and application linking of the smart window system. The method further includes displaying, via a graphical user interface (GUI), the components of the smart window system, the physical linking, the network linking, and the application linking. The method further includes determining a first component of the plurality of components is to be replaced by a new component, causing the new component to be configured based on configurations of the first component, and updating the GUI based on the new component that has been configured based on the configurations of the first component.

Abstract: A system includes a gateway having a memory, and a processing device coupled to the memory. The processing device is to identify a first subset of a data stream associated with a smart window system. The first subset of the data stream includes sensor data that has changed more than a threshold amount. Responsive to identifying the first subset of the data stream, the processing device is to transmit the first subset of the data stream to a server device. The server device is to generate one or more instructions based on the first subset of the data stream. Responsive to receiving the one or more instructions from the server device, the processing device is to cause one or more electrochromic devices to be controlled based on the one or more instructions.

Abstract: A system for causing electrochromic devices to be controlled is described. The system may include a memory and a processing device coupled to the memory. The processing device may receive a data stream from a driver controlling a set of electrochromic devices, transmit a first subset of the data stream to a server device, and store at least a second subset of the data stream in a data file in the memory. The processing device may receive one or more instructions from the server device and transmit the one or more instructions to the driver to cause the set of electrochromic devices to be controlled based on the one or more instructions.

Abstract: A method includes receiving data from components of a smart window system and, responsive to determining that a first portion of the data corresponds to a first identifier, storing the first portion of the data in association with the first identifier. The method further includes receiving, via a graphical user interface (GUI) presented on a user device, a view request and, responsive to determining that the view request corresponds to the first identifier, retrieving the first portion of the data. The method further includes causing the GUI to be modified to display the first portion of the data and, responsive to user interaction with the GUI that was modified based on the view request, receiving, via the GUI presented on the user device, a change request to implement a change associated with electrochromic windows. The method includes causing a first component to implement the change associated with the electrochromic windows.

Abstract: A method includes identifying components of a smart window system. The components include electrochromic devices, drivers, and one or more gateways. Each of the drivers is to control a corresponding electrochromic device and each of the drivers is to receive instructions from a server device via a corresponding gateway. The method further includes determining physical linking, network linking, and application linking of the smart window system. The method further includes displaying, via a graphical user interface (GUI), the components of the smart window system, the physical linking, the network linking, and the application linking. The method further includes determining a first component of the plurality of components is to be replaced by a new component, causing the new component to be configured based on configurations of the first component, and updating the GUI based on the new component that has been configured based on the configurations of the first component.

Abstract: A system for causing electrochromic devices to be controlled is described. The system may include a memory and a processing device coupled to the memory. The processing device may receive a data stream from a driver controlling a set of electrochromic devices, transmit a first subset of the data stream to a server device, and store at least a second subset of the data stream in a data file in the memory. The processing device may receive one or more instructions from the server device and transmit the one or more instructions to the driver to cause the set of electrochromic devices to be controlled based on the one or more instructions.

Abstract: A distributed energy management system (EMS) for supplying power to a set of drivers that charge and discharge a set of electrochromic devices is described. One distributed EMS includes an external power supply interface to couple to an external power supply, a multi-device boost power supply comprising a set of batteries, and a driver interface to supply power to a set of drivers that charge and discharge a set of electrochromic devices. The distributed EMS also includes a communication subsystem to communicate with the set of drivers and EMS circuitry to supply power to the set of drivers, via the driver interface, based on a power state of the multi-device boost power supply and a state of the set of electrochromic devices.

Abstract: A overcharge-aware electrochromic device driver for preventing overcharge of an electrochromic device is described. One driver applies a constant supply current to an electrochromic device from a power supply. The driver determines an amount of charge as a function of time and current supplied to the electrochromic device. The driver determines whether the amount of charge reaches an overcharge limit before a sense voltage reaches a first sense voltage limit. Responsive to the amount of charge reaching the overcharge limit, the driver sets the sense voltage as a second sense voltage limit that is lower than the first sense voltage limit, ceases the constant supply current, and applies one of a variable voltage or a variable current to the electrochromic device from the power supply to maintain the sense voltage at the second sense voltage limit.