A movable solar power apparatus may comprise at least a solar panel set electrically connected to a maximum power point tracking system (MPPT). A lithium battery set is electrically connected to a battery management system (BMS) which is adapted to monitor and protect the lithium battery set, and the BMS is electrically connected to the MPPT to enable power generated by the solar panel set to directly charge the lithium battery set. A low potential wake-up circuit has a double-contact relay and a single-contact relay, and the double-contact relay comprises a main contact, a first contact, and a second contact. The main contact is switchably electrically connected to the first contact or the second contact, and the main contact is electrically connected to the BMS while the first contact is electrically connected to the master control circuit, and the MPPT is electrically connected to the BMS under normal condition.

In a caser where a first current is supplied to a first heater, a controller gradually increases the first current in a first period, supplies the first current based on a first duty cycle in a second period, and gradually reduces the first current to stop supplying the first current in a third period. In a case where a second current is supplied to a second heater, the controller gradually increases the second current in a fourth period, supply the second current based on a second duty cycle in a fifth period, and gradually reduces the second current to stop supplying the second current in a sixth period. The controller controls the supply of the second current such that part of the fourth period overlaps with the third period.

Disclosed embodiments integrate a camera into an intraoral mirror. Integrating a camera into an intraoral mirror provides an efficient way to record and display what is visible to the healthcare provider in the mirror.

Embodiments described herein provide for light field displays and methods of forming light field displays where micro-LED arrays are each configured to provide at least a macro-pixel of effective native hardware resolution, where each macro-pixel provides single pixel of spatial resolution and plurality of pixels of angular resolution, and where each pixel of angular resolution includes a plurality of sub-pixels each provided by a directional collimating micro-LED device described herein.

Multipurpose systems can include networked devices configured to include microphones, motion sensors, video cameras, touchscreens, optical sensors, speakers, or other suitable devices. The networked devices can include networking capabilities that enable the networked device to communicate with target devices and other networked devices. A system of networked devices can identify a target location or a target device by analyzing audio signals received at microphones of the networked devices. For example, a plurality of networked devices can identify a particular networked device that is in closest proximity to a user by analyzing an audio intensity of an audio signal received at the plurality of networked devices. The identified networked device can serve as a master device that can control a state of target devices.

A solar-powered lamp is disclosed. The lamp includes a plurality of radiating extensions, each being formed from a plurality of flat panels that can fold relative to each other along lines between respective ones of the plurality of flat panels; and an electronics assembly, wherein the lamp is collapsible, and the flat panels for each of the radiating extensions fold relative to each other as the lamp is collapsed.

A wearable electronic device including: a first portion and a second portion. The first portion includes a first conductive area on a first inner surface of the first portion and a third conductive area on a first outer surface of the first portion. The second portion includes one or more second conductive areas on a second outer surface of the second portion and a fourth conductive area on a second inner surface of the second portion, wherein the first portion is connected to the second portion. A circuit unit is disposed in a second space of the second portion, wherein the circuit unit is configured to enable an input/output unit of the circuit unit in response to the first conductive area and the second conductive areas are triggered.

Vehicle signaling configurable to various articles and apparel is provided. An example system allows a user to dynamically assign vehicle signals for activating brake lights, turn signals, running lights, headlights, police emergency lights, and so forth, to user-selected lights built into articles and apparel. Vehicle signals may be wirelessly assigned to lights on articles and apparel through a smart phone application, or other portable software means. The system forms a self-managing wireless network, to which the user can add any number of additional illuminated articles and pieces of illuminated apparel, which are automatically sensed and integrated. An example helmet spoiler, for example, has a receiver for processing a wireless signal from a vehicle, to actuate brake lights, turn signals, headlights, and the like on the spoiler itself. In a police implementation, a helmet actuates police flashers on the helmet based on an assigned wireless signal from a police vehicle.

A device for clustering light spots, the device is configured to receive an image captured by a camera, detect light spots in the image, calculate a distance measure for each of a plurality of pairs of light spots detected in the image, and group the detected light spots to clusters based on the calculated distance measures.

A system for detecting misalignment of a light fixture uses a gateway controller device to receive images captured by an aerial drone. The gateway controller will select a group of the images and, for each image in the group: identify a segment of an illuminated surface that is contained in the image; identify a light fixture that is configured to direct light to the segment; and determine whether the image contains content indicating that the light fixture improperly aligned. For any image that indicating that the light fixture is improperly aligned, the system will output a signal indicating that the light fixture requires recalibration.