Motion-Activated Light Flashing for Security Detection
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Solution Overview
Problem
Conventional light sources responsive to animate object detectors often fail to effectively attract attention in settings where multiple lights are switched on and off, making it difficult to notice additional illumination triggered by unauthorized persons.
Innovation Solution
A system comprising a light source interface, an animate object detector, and a controller circuit that temporarily intermittently energizes the light source to flash and then switch to constant illumination upon detecting an animate object, enhancing visibility and deterrence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light source is continuously switched on and off in response to animate object detection, then the light can provide security illumination, but it becomes difficult to notice the additional illumination triggered by unauthorized persons among multiple switching lights
Solution Approach 1:
The light source is configured to flash periodically for a predetermined time period when motion is detected, rather than simply turning on continuously. This periodic flashing action creates a distinctive temporal pattern that stands out against the background of other continuously switching lights, thereby maintaining security illumination while significantly improving the detectability of unauthorized presence.
2Loss of information
If the light source flashes continuously to attract attention, then unauthorized presence becomes more noticeable, but it may cause unnecessary alarm for authorized persons and increase energy consumption
Solution Approach 1:
The system applies partial action by flashing the light source only for a predetermined limited time period after motion detection, rather than maintaining continuous flashing. This partial temporal activation achieves the attention-attracting effect sufficiently to detect unauthorized presence while avoiding excessive energy consumption and unnecessary alarm for authorized persons who would not typically trigger repeated motion events.
3Duration of action of stationary object
If the light source remains constantly illuminated after flashing, then it provides continuous security lighting, but it reduces the attention-attracting capability compared to flashing mode
Solution Approach 1:
The light source operates in a two-stage periodic manner: first flashing periodically to attract attention and detect potential threats, then transitioning to constant illumination to provide sustained security lighting. This temporal sequence allows the system to achieve both attention-attracting capability during the flashing phase and continuous security coverage during the constant illumination phase.
Data Source
AI summary
An apparatus (500) can be comprised of a light source interface (503), an animate object detector (502), and a controller circuit (501) that couples to the light source interface and the animate object detector. This controller circuit is configured and arranged to, upon detecting (101) an animate object via the animate object detector, cause (103) energy as is provided via the light source interface to be only temporarily temporally intermittent in order to cause a light source that is energized by the light source interface to flash and thereby draw attention to the animate object.