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Lighting Control System Services

Introduction

A lighting control system is an intelligent network based lighting control solution that incorporates communication between various system inputs and outputs related to lighting control with the use of one or more central computing devices. Lighting control systems are widely used on both indoor and outdoor lighting of commercial, industrial, and residential spaces. Lighting control systems serve to provide the right amount of light where and when it is needed. Lighting control systems are employed to maximize the  energy savings from the lighting system, satisfy building codes, or comply with green building and energy conservation programs. Lighting control systems are often referred to under the term Smart Lighting.

Automated Control

Lighting control systems typically provide the ability to automatically adjust a lighting device's output based on:

  • Chronological time (time of day)
  • Astronomical time (sunrise/sunset)
  • Occupancy using occupancy sensors
  • Daylight availability using photocells
  • Alarm conditions
  • Program logic (combination of events)

Chronological time :
Chronological time schedules incorporate specific times of the day, week, month, or year.

Astronomical time :
Astronomical time schedules incorporate sunrise and sunset times, often used to switch outdoor lighting. Astronomical time scheduling requires that the location of the building be set. This is accomplished using the building's geographic location via either latitude and longitude or by picking the nearest city in a given database giving the approximate location and corresponding astronomical times.

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Occupancy :
Space occupancy is primarily determined with occupancy sensors.

Daylight availability :
Daylight availability Electric lighting energy use can be adjusted by automatically dimming and/or switching electric lights in response to the level of available daylight. Reducing the amount of electric lighting used when daylight is available is known as daylight harvesting.

Alarm conditions :
Alarm conditions typically include inputs from other building systems such as the fire alarm or HVAC system, which may trigger an emergency 'all lights on' command for example.

Program logic :
Program logic can tie all of the above elements together using constructs such as if-then-else  statements and logical operators.

Theatrical lighting control

Architectural lighting control systems can integrate with a theater's on-off and dimmer controls, and are often used for house lights and stage lighting, and can include worklights,rehearsal lighting, and lobby lighting. 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. Much of the technology is related to residential and commercial lighting control systems. The benefit of architectural lighting control systems in the theater is the ability for theater staff to turn worklights and house lights on and off without having to use a lighting control console. Alternately, the light designer can control these same lights with light cues from the lighting control console so that, for instance, the transition from houselights being up before a show starts and the first light cue of the show is controlled by one system.

ABB
ABB
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