Disclosed are a lighting control method and a lighting control system. The lighting control apparatus makes communication with lighting devices, registers at least one of the lighting devices according to received signal strengths of the lighting devices, and controls the registered lighting device. The lighting control apparatus easily registers and controls the lighting devices.

A resonant power converter is provided with capacitive switching mode protection. The converter produces output current and voltage according to an operating frequency, which is desirably maintained above a resonant frequency for the power converter. A controller regulates the operating frequency based on an output current relative to a reference value, which may be provided via a dimming interface. A capacitive switching mode is determinable, based on a positive relationship in a detected direction of change in an output value relative to a detected direction of change in the operating frequency. When the capacitive switching mode is determined, a preceding operating frequency is enacted and the controller disables regulation of the operating frequency therefrom. Inductive mode switching is determinable with a negative relationship between detected direction of change in the output value relative to direction of change in the operating frequency, wherein regulation of operating frequency is renewed.

The present invention provides a control method for a smart light, comprising: displaying control information of connected smart lights as a first kind of icon and/or a second kind of icon on a main interface, the first kind of icon corresponds to a single light and the second kind of icon corresponds to a group consisting of at least two single lights; when detecting at the position of the first kind of icon and the second kind of icon and identifying as selected operation, displaying a control interface corresponding to the single light or the group; the control interface comprises a light-adjusting tab, the light-adjusting tab comprises a parameter adjustment column, a switch button and an effect simulation diagram; when the light-adjusting tab is on active page, sending parameter configuration information to corresponding single light or group based on sliding position of detected slider in the parameter adjustment column, and sending switch light configuration information to corresponding single light or group based on state change of detected switch button, and displaying the effect simulation diagram based on the parameter configuration information and the switch light configuration information.

Methods and apparatus for a security light having a remote photovoltaic module is set forth. The security light includes a primary rechargeable battery connected to the remote photovoltaic module while also having a backup battery system to be utilized when the rechargeable batteries condition require recharge. The security lighting unit functions as a security light to provide variable wide area illumination based upon environmental and battery conditions and also which power supply is optionally connected to the load, the load being the illumination sources and the various supportive electronics. The system further includes a controller which can not only operationally selects either the rechargeable batteries or backup batteries but also can monitor battery condition to preserve battery life. In operation, the security light may include a variable battery power supply for ease of installation.

A self-healing overtemp circuit is described and illustrated comprising a temperature sensing circuit, a voltage sensing circuit, and optionally, a current sensing circuit. The self-healing overtemp circuit is designed to ramp down power in an LED lighting system (or other electrical circuit) in response to a sensed or impending thermal runaway (and optionally, overcurrent) event. Said thermal runaway and overcurrent events may be a result of failure of one or more components (e.g., driver, active cooling means) of the lighting system. The self-healing overtemp circuit further comprises means of restoring power to said LEDs in a manner that avoids (i) a perceivably bright flash of light or (ii) increased risk of component failure.

A configurable wall mount light switch for use in controlling multiple light fixtures. In one embodiment, the switch includes a touch screen display, a transceiver and a programmable microcontroller. The microcontroller may be programmed to display a plurality of interface elements on the touch screen display for selection by a user to control one or more light fixtures. Typically, the switch is dimensioned to be received by a single gang electrical box.

A method of controlling a plurality of lights of a lighting installation comprises the steps of receiving a framework defining the plurality of lights of the lighting installation, the framework comprising a video frame, creating a plurality of different coloured versions of the framework, locating each of the different coloured versions of the framework on a timeline of video frames, applying transition effects between the located different coloured versions of the framework on the timeline to create intermediate video frames thereby generating a sequence of video frames, transmitting the sequence of video frames to a lighting controller for the lighting installation, and controlling the plurality of lights of the lighting installation according to the sequence of video frames.

Method of controlling light output (44) of a luminaire (40) using a control terminal (30), wherein the luminaire comprises at least one light source (46) and a control unit (42), the control terminal comprising a display. The method comprises the steps of sending, from the control terminal to the control unit, an interrogation (T1) of light output adjustment ability of the luminaire, receiving, from the control unit to the control terminal, information (T2) of light output adjustment ability of the luminaire wherein the information comprises at least three input values representing coordinates in a chromaticity diagram and defining an adjustment area in the chromaticity diagram, evaluating the information of light output adjustment ability from the luminaire, and displaying, on the display (32) of the control terminal, a light output control (50, 60), for adjustment of the color or color temperature of the luminaire, the light output control being single-variable or multi-variable depending on the evaluation of the information of light output adjustment ability received from the control unit.

A controlling of a lighting network based on traffic monitoring comprises steps of determining plurality of coverage areas of set of luminaires, where each luminaire comprises at least one light source. Information related to a presence of users in said coverage areas is received. This may relate both outdoor or indoor areas and activity. A status of at least certain luminaire is then changed to a reserve status, when a last detected user exits the coverage area. Each coverage area or luminaire is providing with an expected value for the time of when the next user is expected to arrive in the coverage area of said luminaire, A set of luminaires [R] of said luminaires with the reserve status to be controlled, such as dimmed, is then defined and information related to demand response requests [D.sub.1, . . . , D.sub.n] of an electric power grid is received. In addition controlling, such as dimming, at least one of said defined set of luminaires in said reserve is performed in order to fulfil said demand response requests at least partially.

A lighting device with a conversion element is provided. It may be irradiated with excitation radiation from an electromagnetic radiation source. Provision is made of an optical component for the radiation emanating from the conversion element and provision is made of a sensor for detecting radiation emanating from the conversion element and/or for detecting radiation emanating from the radiation source.