Abstract
Urgency of the research. Lighting consumes around of 17.5% of the total volume of electricity produced on Earth. In some regions the consumption reaches to 50%. Improving of electronic devices and algorithms for autonomous lighting control reduces the consumption of more than a half (60%).Target setting. Existing "smart lighting" devices is supplied as a centralized system with closed protocols and managers by a powerful computer, or actively using existing communications network, which is not always provides for extension.Actual scientific researches and issues analysis. The centralized and decentralized solutions of the human indoors detection is performed by using the existing network devices for wireless communications (ZigBee), video surveillance, and audio range microphone. Particular attention was acted on how the technical implementation of the hardware and software parts, as well as technologies and algorithms that were used in those solutions, wavelet transform, pattern recognition and regulators non-classical structure.Uninvestigated parts of general matters defining. Still not researched class of decentralized "smart lighting" devices, that are embedded into a lighting device and use method of determining the presence of humans by the their noise sound spectrum.The research objective. Design a cheap and compact "smart lighting" device that can be built-in locally in each room, or even its part. Each device must have as less power consumption as possible and a minimal set of sensors.The statement of basic materials. For pre-amplification and filtering of sound signal the analog band-pass filter based on unipolar OpAmp was designed. The frequency responses (spectrums) of the noises caused by human activity, taking into account the classification of those activities, was experimentally measured. Combinations of existing software development tools that allows to develop and compile a project under any operating system, without using proprietary software was composed and assembled.Conclusions. The set of selection criteria for comparison decentralized "smart lighting" devices was done. The structure of the cheap and scalable device, which is easily modified unlike to existing models, was proposed. On the cost of sensor part the proposed device ahead of similar ones.
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