Sensor-Controlled LEDs for Smart Illumination

LED lighting device that adjusts brightness based on daylight and indoor illuminance to save power. The device has visible light and near-infrared sensors, motion sensor, and a dimming control unit. It measures visible light, near-infrared, and motion. If corrected illuminance (diff between visible/near-IR) is high, dims. If corrected low, brightens. If max output with low near-IR, resets threshold. This balances day/night lighting needs.

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An LED tube lamp with an installation detection circuit that ensures proper connection to a lamp socket before lighting up. The detection circuit generates two pulses and sends them to a switch along with the LED driving signal. If the lamp is not properly connected during either pulse, the switch remains off, preventing the lamp from lighting. If the lamp is detected as properly connected during at least one pulse, the switch turns on, allowing the lamp to light up. This mechanism ensures the lamp only operates when fully installed, enhancing safety and reliability.

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Intelligent LED lamp that adjusts brightness based on ambient light and presence detection to save energy. The lamp has a power supply, photosensitive module, power adjustment module, driving control module, sensing control module, and LED module control module. The photosensitive module detects light and the power adjustment module increases brightness in low light. The sensing module detects presence and turns off the lamp when alone. The driving control module regulates LED current. This allows the lamp to dim in bright light, conserve power when alone, and adjust brightness based on photosensing.

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LED light source device that adjusts brightness based on ambient light to improve energy efficiency and reduce heat generation. The device has separate warm and cold white LED holders arranged alternately in groups. An ambient light sensor is mounted on the housing. It uses a separate wiring board for cold and warm white LEDs connected to the housing base. This allows flexible control of the relative brightness of warm and cold LEDs based on ambient light.

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Energy-saving LED lamp bead that adjusts brightness based on ambient light. The lamp has an LED bead, fixed box, control box, sensor module, current control module, control panel, and transmission module. The sensor detects ambient light and sends signal to the control panel. The panel adjusts current through the control module to the LED bead based on the sensor signal. This allows the lamp to dynamically adjust brightness based on ambient light, preventing overillumination and power waste when fixed brightness lamps are too bright.

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Intelligent LED lighting control system that automatically adjusts brightness and switches LEDs based on outdoor light levels and indoor occupancy. The system uses sensors to detect natural light intensity and indoor activity. When outdoor light is sufficient, it turns off indoor LEDs. If light is low or no one is present, it turns off LEDs. As outdoor light decreases, it increases indoor LED brightness. This ensures optimal lighting based on environment conditions and saves power when natural light is sufficient.

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Adjustable multi-mode intelligent control LED lamp group that can automatically adjust lighting based on environmental conditions and user presence. The lamp has a control mechanism with sensors like light, motion, temperature, and a timer connected to a PLC controller. The sensors provide data to the controller which then controls the LED lamp assembly through relays. This allows features like turning on when light is low, turning off when motion stops, adjusting brightness with light level, and scheduled timers.

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LED light box with energy-saving control to reduce power consumption and waste. The light box has detachable LED strips and a sensor between them. When the sensor detects people nearby, it signals the power supply to reduce output. This dims the lights and reduces heat. The power supply uses an AC-DC converter with active power factor correction to efficiently convert mains power to the LED supply voltage.

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LED lighting device that adjusts brightness based on room light levels and external light conditions to maintain consistent illuminance while reducing power consumption. The device has visible light and near-infrared sensors. It dims if indoor light + outdoor light exceeds a threshold, and brightens if indoor light is low. The thresholds adapt based on initial measurements in a dark room. This allows optimized lighting with natural light variability.

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LED module that can automatically dim based on local ambient light. The module has an LED for emitting light and another LED for sensing ambient light. A control unit adjusts the main LED's brightness based on the sensed light level. Using a separate sensing LED avoids interference from the main LED's output. This allows precise local dimming without needing separate ambient light sensors in the room.

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Intelligent variable lighting systems enhance efficiency and customization by using occupancy and ambient light sensors to autonomously adjust LED brightness. These systems dim the lights when no one is present and brighten them when occupied. Adjustable transition delays optimize energy savings while avoiding abrupt lighting changes. Additionally, the systems can be remotely managed to set specific dimming levels and delays, offering greater control and flexibility.

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LED lighting system that improves efficiency, maintains brightness, and extends LED life by using an optical sensor to control PWM (pulse width modulation) and wireless communication. The system has an optical sensor to detect light, a controller that adjusts PWM duty based on input, an LED driver, and a Bluetooth module. The controller uses an auto calibration method to optimize PWM for initial brightness and gradually increases duty if light drops below standard. This maintains consistent brightness. The Bluetooth allows remote control and alerts for LED replacement time.

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Intelligent energy-saving LED lamp group system with solar power that adjusts lighting based on environmental conditions. The system uses sensors to detect light, motion, and noise, and a microcontroller to automatically dim the LEDs when ambient light is sufficient, saving power. Solar panels charge a battery to provide backup power when needed. The LED panels have sensors at both ends to monitor conditions and dimmers to adjust brightness. The system allows energy-efficient, automated lighting that adapts to surroundings.

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Illumination for optical sensors in coordinate measuring machines ensures uniform illumination of the field of view. The device features a unique arrangement of LED chips grouped into sets, with neighboring LEDs rotated relative to each other. This design allows the non-emitting areas of one LED to be illuminated by adjacent LEDs. By selectively activating these LED groups, segmented lighting is achieved, providing full illumination of the sensor field and eliminating non-uniformities from non-emitting areas.

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Automatic control system for LED lighting that adjusts light intensity based on room occupancy and external light levels to improve energy efficiency. The system uses pyroelectric sensors and fresnel lenses to detect people and external light, and a dimmer circuit with MOSFET to adjust LED brightness accordingly. This avoids unnecessary lighting when rooms are empty or well-lit from outside.

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A lighting fixture with sensor that reduces the impact of LED brightness on sensor readings. The fixture has a sensor with a light intensity detection module, CPU, power processing module, and human body sensing module. The CPU controls power duty cycle based on detected brightness. A brightness table maps duty cycles to levels. The CPU reduces detection frequency based on sound volume. If duty reaches a limit, it stops increasing. The CPU also adjusts duty based on time difference between head and tail signals in sounds. This allows accurate ambient brightness detection between LED on/off cycles.

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Dimming LED lights using a movable light blocking element to provide more accurate and reliable dimming compared to conventional methods. The dimming device has a light sensing element that detects light from the LEDs, a movable light blocking element between the LEDs and sensing element, and a controlling element to set the LED current or color temperature based on the sensing element's output. Moving the blocking element alters the sensing element's light level, allowing more precise dimming.

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An LED lighting device that intelligently adjusts brightness based on presence and ambient light to save power. The device has a sensor to detect when a target enters a specific area. If the target is present and ambient light is low, it sends a dimming signal to the LED driver. If no target is present, it sends a dimming signal after a delay. The driver then adjusts the LED brightness accordingly. This avoids wasting power when no one is there and low light conditions. The device also has backup power from a battery charged by the main supply.

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A smart LED power supply that can adaptively dim the LED lights based on factors like ambient light, presence of people, and motion. The power supply has a PFC module, dimming module, wireless receiver, and sensors like pyroelectric, light, and radar. The sensors collect signals representing human presence, light level, and motion. The wireless module receives these signals and sends a dimming PWM signal to the dimming module. This allows automatic adjustment of brightness based on environment and presence detection.

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LED lighting device with dual output control based on human presence and light level sensing. The device has both human body detection and light sensing capabilities. When motion is detected, it illuminates at a normal output. But if light levels fall below a threshold, it reduces the output to a minimum level. This provides crime prevention by maintaining some light in low-illuminance areas. By using digital amplifiers and microcontrollers instead of analog circuits, the device simplifies components, improves reliability, and blocks side light interference for better sensor performance.

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