An internet-of-things, IoT, device (100) includes a luminosity sensing unit and a motion sensing unit. The IoT device (100) also includes a first network interface connectable to an IoT coordinator device (200) over a first network using a first network protocol, and a second network interface configured to communicate over a second network via a second network protocol. The IoT device (100) is configured to act as a bridge between the first and second networks, allowing integration of various smart building management services (600). A smart building control system (300) comprises a plurality of the IoT devices (100).

An internet-of-things, IoT, device (100) includes a luminosity sensing unit and a motion sensing unit. The IoT device (100) also includes a first network interface connectable to an IoT coordinator device (200) over a first network using a first network protocol, and a second network interface configured to communicate over a second network via a second network protocol. The IoT device (100) is configured to act as a bridge between the first and second networks, allowing integration of various smart building management services (600). A smart building control system (300) comprises a plurality of the IoT devices (100).

A lamp for a vehicle or other object that includes multiple functions. In one aspect, the lamp includes a first circuit for emitting a first color light (such as red light), and at least a second circuit for emitting a second color of light (such as amber light). In another aspect, the lamp optionally includes a microcontroller that may be programmed to control the activation of the different colored lamp circuits based on lamp location information, and based on an operating mode.

Method of using stereo recording to control the flashing of multiple lamps includes steps of: recording sound sources generated by stereo sound source venue or an electronic device and storing the recorded analog signal in audio signal sampling unit of signal processing device, then amplifying analog signal converting into a digital signal, then separating digital signal into left and right channel signals and enhancing sound signal and then converting sound signal into a light flashing formula to obtain a light flashing parameter value, and then transmitting control commands to a left/right lamp driving unit and a central lamp driving unit respectively according to light flashing parameter value, and then left side lamps, central lamp and right side lamps respectively form staggered flashing according to light flashing parameter value of the operation control unit, so that the flashing light set produces light changes corresponding to the music rhythm and vocals.

Method of using stereo recording to control the flashing of multiple lamps includes steps of: recording sound sources generated by stereo sound source venue or an electronic device and storing the recorded analog signal in audio signal sampling unit of signal processing device, then amplifying analog signal converting into a digital signal, then separating digital signal into left and right channel signals and enhancing sound signal and then converting sound signal into a light flashing formula to obtain a light flashing parameter value, and then transmitting control commands to a left/right lamp driving unit and a central lamp driving unit respectively according to light flashing parameter value, and then left side lamps, central lamp and right side lamps respectively form staggered flashing according to light flashing parameter value of the operation control unit, so that the flashing light set produces light changes corresponding to the music rhythm and vocals.

A light control method and apparatus, and a storage medium are disclosed. The light control method includes: acquiring video data information from the video source device; obtaining color data information of pixels in a preset region in a frame picture according to the video data information; generating a corresponding light control signal according to the color data information; and outputting the light control signal to a lamp bank to control an operating state of the lamp bank to match the video data information.

A light control method and apparatus, and a storage medium are disclosed. The light control method includes: acquiring video data information from the video source device; obtaining color data information of pixels in a preset region in a frame picture according to the video data information; generating a corresponding light control signal according to the color data information; and outputting the light control signal to a lamp bank to control an operating state of the lamp bank to match the video data information.

Method of controlling warning lights to enter low power mode includes steps of: setting predetermined ID Number of warning lights as starter, and remaining ID numbers as receivers; warning light set as starter receiving start command from control bus through signal line, and sending data, clock pulse, and ID information from data bus, and choosing low power mode to flash; warning lights set as receivers obtaining data, clock pulse, and ID information from data bus through signal lines, and flash mode of receivers and starter flashing in low power mode, and active switch of control circuit that executes low power mode receiving low power command sent from starter and forming conductive state, and current-reducing resistor which is electrically connected to active switch reducing passing current to predetermined ratio, so that reduced current is transmitted to receivers and then starter executes low power mode and reduces brightness of warning lights.

In one aspect, a device is adapted to transmitting power to, or receive power from, a remote device over first and second communication lines (DALI+, DALI−) and to communicate with the remote device over the first and second communication lines. A first driver implements a first communications protocol which comprises coupling the first and second communication lines together to encode a first signal level and isolating the first and second communication lines from each other to encode a second signal level. This may be a DALI protocol. A second driver implements a second communications protocol which comprises modulating the first communication line with a signal having a low modulation depth. The second communications protocol means there is always a voltage difference between the two communication lines to enable continuous power harvesting. A second aspect relates to efficient power transfer by disabling a current limiter function, when possible.

A computer-vision system is equipped with a first camera and a second camera spaced apart from each other and enables acquisition of a first image and a second image of a light beam that propagates from a light-beam source towards a target position of the light beam. The first image and the second image of the beam differ from each other as a result of the first camera and the second camera being spaced apart from each other. The system produces a disparity map of the first image and second image of the beam to be projected in a three-dimensional point cloud starting from the disparity map according to point-cloud-projection calibration data that set in relation disparity maps for reference images with respective three-dimensional point clouds.