ZigBee Lighting Controller with Integrated Sensors and Dual Dimming
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Solution Overview
Problem
Existing wireless dimming controllers for LED luminaires lack sensing capabilities to respond to ambient lighting conditions and motion, and they cannot drive luminaires using both phase-cutting and 0-10V analog control protocols, nor do they allow local infrared control.
Innovation Solution
A ZigBee-enabled controller with integrated sensors for light, motion, acoustic, and microwave detection, capable of providing both phase-cut and 0-10V analog dimming outputs, and allowing local operation via infrared control, which can be added to existing dimmable LED luminaires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a controller is designed to add sensing capabilities (light, motion, acoustic, microwave detectors) to existing wireless dimming controllers, then the controller can respond to ambient lighting conditions and motion, but the device complexity increases
Solution Approach 1:
The patent combines multiple sensing capabilities (light detector, motion detector, acoustic detector, microwave detector) and control functions (phase-cut dimming, 0-10V analog dimming, infrared control) into a single integrated controller unit. This merging approach allows the controller to respond to various ambient conditions and provide comprehensive lighting control while maintaining a unified device architecture, resolving the contradiction between enhanced adaptability and device complexity.
Solution Approach 2:
The controller is designed with multi-functionality to support multiple dimming protocols (phase-cut leading edge, phase-cut trailing edge, 0-10V analog), multiple sensor types (light, motion, acoustic, microwave), and multiple control interfaces (ZigBee wireless, local infrared). This universal design enables a single device to perform diverse functions that would otherwise require separate controllers, achieving high adaptability without proportionally increasing system complexity.
2Adaptability or versatility
If a controller supports both phase-cut and 0-10V analog control protocols, then the controller can drive a wider range of luminaires, but the device complexity increases
Solution Approach 1:
The controller incorporates dual control protocol support (phase-cut and 0-10V analog) within a single device architecture. The controller can selectively activate the appropriate control output based on the connected luminaire type, providing broad compatibility without requiring separate controllers for different luminaire types. This multi-functional design achieves high adaptability while managing device complexity through integrated circuitry and unified control logic.
3Ease of operation
If local infrared control capability is added to the wireless controller, then the controller allows manual override and local operations, but the device complexity increases
Solution Approach 1:
The patent integrates local infrared control capability into the existing wireless controller unit. The infrared receiver and processing circuitry are combined with the wireless transceiver and control logic, allowing manual override and local operations without requiring a separate infrared control device. This merging approach provides enhanced ease of operation while managing device complexity through shared hardware and integrated control architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables responsive lighting control, reduces processing power in central controllers, and simplifies control architecture by integrating sensing and control functions, allowing for cost-effective addition to existing luminaires with enhanced functionality.
Implementation Method 1
a ZigBee transceiver which can communicate with a network of other similar controllers and a local area network (LAN) access point
Implementation Method 2
One of the sensors is for signals from an infra-red controller which can be used to manually override the wireless control signals
Implementation Method 3
The controller uses the signals from these sensors to operate the luminaire in a responsive way—for example turning on the lights when motion is detected during hours of darkness
Implementation Method 4
to sense sound or motion in the vicinity in order to trigger a light output
Data Source
AI summary
A wireless operated LED lighting controller has both analog and phase control outputs which operate a dimming luminaire, and sensors for lighting and motion which operate autonomously as needed. In addition it is locally operated by a handheld infra-red controller. At least one sensor can be chosen from the group of: a light detector, a motion detector, an acoustic detector, a temperature sensor, and a microwave detector. The sensor is electrically connected to the phase control output. A light output of the controller is affected by signals detected by the at least one sensor. The lighting controller has the phase control output enabled for either a leading edge dimming or a trailing edge dimming, and has a mode for completely turning off the dimming luminaire.