Automatic System of Illumination  of the Territory of the Enterprise

Abstract

The work is devoted to the development of an intelligent lighting control system for adjacent territories. Every day more and more popular is the use of led lamps, they are more economical from outdated gas-discharge lamps or incandescent lamps, which are now commonly used. For comparison, a 40W incandescent lamp has a luminous flux of  400 lumens, the same luminous flux has a 5W led lamp. There are many outdoor lighting network management systems that have a wide range of management capabilities. The most common ones are LonWorks, DMX-512, DALI, DCI. They usually use motion sensors, light sensors, time relays, and other automation elements, each of which has its own advantages and disadvantages. These advantages and disadvantages have been analyzed in terms of application in the system being developed. The main requirements for the system were economic and ease of use. Taking into account these requirements, the existing methods of street lighting management and systems based on them were considered. A block diagram of the lighting control system for the adjacent territories of the enterprise was developed, which is shown in figure Fig. 1. The system is a network whose nodes are connected by a simple digital data bus DB. The digital data bus can be wired, wireless, or optical. Each network node consists of: an MSi motion sensor, an LLi led lamp, a microcontroller with a builtin MCi real-time clock, a light-sensitive LSI sensor, and IUI interface blocks. The light-sensitive sensor can be installed in one place, provided that the level of natural light in the coverage area of each local lighting system is approximately the same. When the level of external natural light decreases below a certain critical level, the light-sensitive sensor sends a signal to the microcontroller to turn on the local lighting system, after which each local zone is illuminated with individual specified parameters of the glow power. When the motion sensor is activated in the local area of the lighting system, the lamp switches to high power mode. Thanks to a real-time microcontroller, the moment when an object appears in this zone is recorded. As the object moves, it enters the coverage area of another local lighting system where the network uses a built-in real-time clock to record the moment when the object appears in another zone, this information is transmitted via a digital bus to the system, from which we can determine the direction of movement of the object. Based on the developed block diagram and based on the requirements for the system being developed, a microcontroller from the STM family was selected. This family of microcontrollers, due to their performance, architecture and low power consumption, is best suited for working with the hardware of the system being developed. 

Keywords

References

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License

Copyright (c) 2020 Валентин Олексійович Тоценко, Ганна В. Сарибога, Олег Михайлович Бевза (Автор)