Provided is a self-generating smart glass, including: a window frame, an outer glass and an inner glass, a plurality of solar panels, a first electric telescopic rod, a plurality of slide grooves which are symmetrically arranged on a top and a bottom of the window frame, a foldable plate located between the outer glass and the inner glass, a first battery, a light sensor and a control system. Two adjacent outer surfaces of the foldable plate are provided with the solar panels which are connected in series through flexible wires and communicated with the first battery. The first electric telescopic rod, the light sensor and the control system are respectively connected to the power supply; and the first electric telescopic rod and the light sensor are respectively connected to the control system.

A mobile device that is configured for wireless communication may be configured to operate as a remote control device in a lighting control system, controlling one or more lighting control devices of the lighting control system. The remote control device may control the light intensity in a space, for instance at a location of the remote control device, in response to an ambient light intensity measured at the remote control device. The remote control device may define a user interface for receiving an input that indicates a desired light intensity at the location. The remote control device may measure the ambient light intensity at the location via a light detector, compare the measured ambient light intensity to the desired light intensity, and cause the one or more lighting control devices to adjust the ambient light intensity at the remote control device until it agrees with the desired light intensity.

Onboard EC window controllers are described. The controllers are configured in close proximity to the EC window, for example, within the IGU. The controller may be part of a window assembly, which includes an IGU having one or more EC panes, and thus does not have to be matched with the EC window, and installed, in the field. The window controllers described herein have a number of advantages because they are matched to the IGU containing one or more EC devices and their proximity to the EC panes of the window overcomes a number of problems associated with conventional controller configurations. Also described are self-meshing networks for electrochromic windows.

A light control sheet including a first transparent electrode layer, a second transparent electrode layer, a light control layer formed between the first transparent electrode layer and the second transparent electrode layer, the light control layer including a transparent polymer layer having voids filled with a liquid crystal composition including liquid crystal molecules, and spacers formed in the light control layer and including polymethyl methacrylate.

Electrochromic window systems and components thereof are disclosed, more particularly systems where electrochromic devices are powered and/or controlled using photonic energy. In some instances, a laser is driven by a driver to deliver photonic power and/or control information into an optical fiber. The optical fiber carries the power and control information to a photovoltaic converter and a controller. The photovoltaic converter and controller may be included within an insulated glass unit (IGU). The photovoltaic converter converts the light energy into electrical energy used to power a transition in an optical state of an electrochromic layer or layers within the IGU. The controller may be used to control the power delivered to the electrochromic layer(s), such that a smooth transition occurs. In some embodiments, control information may be transmitted in an upstream manner to communicate information regarding, for example, the state of an electrochromic device.

A shading and illumination system includes a shading device for shading viewing openings, an illumination device for illuminating a room, an external sensor for detecting an external parameter acting on the room, an internal sensor for detecting a 3D image of the room, a position of a person present in the room in the 3D image, and a viewing direction of the person, and a control unit for actuating the shading device and the illumination device. The shading device and the illumination device are actuatable depending on the values measured by the external sensor and by the internal sensor. A light parameter acting on the person is determinable depending on the detected viewing direction, on the detected position, on the 3D image of the room, and on the external parameter. The shading device and/or the illumination device are/is actuatable depending on the light parameter acting on the person.

This invention relates to coated roofing granules, roofing materials made therefrom, and methods of preparing such coated roofing granules. By coating roofing granules with an aqueous coating that includes water, a silicon-containing oligomer or polymer, and an acrylic resin, coated roofing granules can be prepared that exhibit reduced staining as compared to traditional roofing granules that are treated with petroleum oil.

Solar reflective roofing granules include a binder and inert mineral particles, with solar reflective particles dispersed in the binder. An agglomeration process preferentially disposes the solar reflective particles at a desired depth within or beneath the surface of the granules.

A load control system may include control devices for controlling electrical loads. The control devices may include load control devices, such as a lighting device for controlling an amount of power provided to a lighting load, and controller devices, such as a remote control device configured to transmit digital messages for controlling the lighting load via the load control device. The remote control device may communicate with the lighting devices via a hub device. The remote control device may detect a user interface event, such as a button press or a rotation of the remote control device. The remote control device or the hub device may determine whether to transmit digital messages as unicast messages or multicast messages based on the type of user interface event detected. The remote control device, or other master device, may synchronize and/or toggle an on/off state of lighting devices in the load control system.

The method comprises determining that the clear day exists in response to the apparent diameter of the solar disc being similar to the expected diameter of the solar disc on the clear day and determining that an overcast condition exists in the camera image in response to the apparent diameter of the solar disc being distorted. The method may further include receiving a camera image of a sky section from a camera at a first location; segmenting the camera image into a first portion around a known position of a solar disc and a second portion of the remainder of the sky section containing an horizon; determining that the solar disc is obstructed by the horizon; and establishing that the first location is experiencing shadow conditions based on the determining.