Lighting control system
This may include high efficiency fixtures and automated controls that make adjustments based on conditions such as occupancy or daylight availability.
This may include occupancy sensors, timeclocks, and photocells that are hard-wired to control fixed groups of lights independently.
These devices may include relays, occupancy sensors, photocells, light control switches or touchscreens, and signals from other building systems (such as fire alarm or HVAC).
Wireless lighting control systems provide additional benefits including reduced installation costs and increased flexibility over where switches and sensors may be placed.
Preventative measures include illuminating key access points (such as walkways) at night and automatically adjusting the lighting when a household is away to make it appear as though there are occupants.
[6] The table below shows potential electricity savings from using occupancy sensors to control lighting in various types of spaces.
[7] The advantages of ultrasonic devices are that they are sensitive to all types of motion and generally there are zero coverage gaps, since they can detect movements not within the line of sight.
There are also wireless lighting control systems that are based on some standard protocols like MIDI, ZigBee, Bluetooth Mesh, and others.
This system will need a smartphone or tablet where the user can install a special Philips Hue Bluetooth app.
[16] Schubert predicts that revolutionary lighting systems will provide an entirely new means of sensing and broadcasting information.
A major focus of the Future Chips Constellation is smart lighting, a revolutionary new field in photonics based on efficient light sources that are fully tunable in terms of such factors as spectral content, emission pattern, polarization, color temperature, and intensity.
Schubert, who leads the group, says smart lighting will not only offer better, more efficient illumination; it will provide "totally new functionalities."
Control stations can be placed in several locations in the building and range in complexity from single buttons that bring up preset options-looks, to in-wall or desktop LCD touchscreen consoles.
The function of a traditional emergency lighting system is the supply of a minimum illuminating level when a line voltage failure appears.
Therefore, emergency lighting systems have to store energy in a battery module to supply lamps in case of failure.
For this reason, the smart lighting prototype can check its functional state every fourteen days and dump the result into a LED display.
[17] The main idea is the substitution of the simple line voltage sensing block that appears in the traditional systems by a more complex one based on a microcontroller.
The micro-controller as a control and supervision device guarantees increase in the installation security and a maintenance cost saving.
Another important advantage is the cost saving for mass production specially whether a microcontroller with the program in ROM memory is used.
The advances achieved in photonics are already transforming society just as electronics revolutionized the world in recent decades and it will continue to contribute more in the future.
