Self-Adaptive Brightness Sensor Light Control Circuit
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Solution Overview
Problem
Conventional sensor lights experience repeated on-and-off issues due to high reflectance environments, leading to operational troubles as they turn on and off based on ambient brightness levels without accounting for reflective surfaces.
Innovation Solution
A self-adaptive brightness sensor light with a control circuit and brightness sensor module that adjusts the daytime brightness level after activation, increasing it if ambient brightness is higher than initial settings, to prevent immediate deactivation caused by high reflectance, thereby avoiding repeated activations and deactivations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensor light uses a fixed daytime brightness level for automatic on/off control, then the control procedure is simple and energy efficient, but the sensor light experiences repeated on-and-off issues in high reflectance environments
Solution Approach 1:
The patent applies dynamics by making the daytime brightness level adjustable rather than fixed. The control circuit dynamically modifies the daytime brightness level based on detected ambient brightness values. When the sensor detects high ambient brightness (caused by reflectance), it automatically increases the daytime brightness level threshold, preventing false on/off cycling and improving operational stability in varying environmental conditions.
Solution Approach 2:
The patent implements feedback by continuously monitoring the ambient brightness value and using this information to adjust the daytime brightness level. The control circuit detects the ambient brightness, compares it with the current daytime brightness level, and modifies the threshold accordingly. This closed-loop feedback mechanism eliminates repeated on-and-off issues caused by high reflectance environments while maintaining automatic control.
2Speed
If the sensor light turns on immediately when ambient brightness is below the nighttime level, then the response is fast and convenient, but the sensor light turns off immediately after in high reflectance environments causing repeated cycling
Solution Approach 1:
The patent applies dynamics by making the daytime brightness level adjustable rather than fixed. The control circuit dynamically modifies the daytime brightness level based on detected ambient brightness values. When the sensor detects high ambient brightness (caused by reflectance), it automatically increases the daytime brightness level threshold, preventing false on/off cycling and improving operational stability in varying environmental conditions.
Solution Approach 2:
The patent implements feedback by continuously monitoring the ambient brightness value and using this information to adjust the daytime brightness level. The control circuit detects the ambient brightness, compares it with the current daytime brightness level, and modifies the threshold accordingly. This closed-loop feedback mechanism eliminates repeated on-and-off issues caused by high reflectance environments while maintaining automatic control.
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
The self-adaptive brightness sensor light effectively reduces the occurrence of repeated on-and-off conditions by dynamically adjusting the daytime brightness level, ensuring stable operation even in environments with high reflectance, thus preventing misjudgments from short-duration high-brightness light disturbances.
Implementation Method 1
detecting brightness of an ambient environment to acquire an ambient brightness value
Data Source
AI summary
A self-adaptive brightness sensor light performs a brightness level adjusting procedure upon activating a lamp body thereof. The brightness level adjusting procedure has steps of acquiring an ambient brightness level, determining if the ambient brightness level is greater than a daytime bright level, and if positive, generating a new daytime brightness level to make it greater than the ambient brightness level, and deactivating the lamp body according to the new daytime brightness level. The daytime brightness level can be automatically adjusted after the lamp body is activated, so as to avoid repeated on-and-off condition of the sensor lights that occur due to immediate deactivation of the sensor light after the sensor light is turned on.