Method and device for detecting a static index of a lighting device

Abstract

A method for detecting a statistical characteristic of a lighting device is provided. The method may include a) generate a random number within a prescribable value range; b) compare the random number with a comparison number; c) c1) if the comparison of step b) yields a match: increase the count of a storage device by one step width.

Description

technical field [0001] The invention relates to a method and a device for detecting statistical characteristic numbers of lighting devices. Background technique [0002] The present invention generally relates to the detection of statistical characteristics of lighting devices. This can be understood to mean, for example, an operating hour or a switch-on sequence of the lighting device. The reason for this measure is that, for example, the light yield of LEDs is strongly related to aging. Depending on the detected operating hours, the activation of the LEDs can then be changed as a countermeasure, for example. In faulty feedback, the number of operating hours or the number of switching operations is an important criterion for determining the cause of a fault. In critical areas of application of lighting devices, such as OP lighting, traffic lights, street lights, maintenance intervals can be observed on the basis of the detection of operating hours or switch-on procedures...

AI Technical Summary

Problems solved by technology

Here, flash memory is the most favorable variant, but it has the disadvantage that it cannot be written as frequently as other storage media.

Furthermore, there is the problem that the internal power supply must also remain present long enough to protect the characteristic data when the lighting device is switched off.

This is followed by a further disadvantage: to supply the components important for the storage process, large and thus expensive buffer capacitors must be provided

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