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Lighting control systems

LED lighting offers much more controlling possibilities than traditional systems, applicable to new installations or updating an existing systems.

In addition to the energy saved by the new technology, integrating LEDs with a control system can offer an additional 20-30% saving. The objective of controlling the light is to the reduce the light output when the need is lower or absent.

Down below we are presenting the control systems available with most of our products, from controlling few fixtures to entire industries and cities.

Streetlighting controls

Virtual midnight
Lineswitch
Power-line communication
Remote wireless control
Motion sensor
Photocell

Tunnel lighting controls

Power-line communication
Remote wireless control

Industrial lighting controls

1-10V / DALI
Motion sensor
Illuminance sensor
Zigbee

Virtual midnight

It’s an automatic system, completely integrated in the light fixtures that does not require any additional wiring or external hardware.

It reduces the luminous flux according to a pre-set program (up to 5 dimming and time steps), adjustable like the picture shown in the left page.

For three days after the installation, the lights will work at full power, reading the on/off time, starting to reduce the luminous flux from the fourth day.

The operation is based on calculating a virtual midnight (average on-off moment) used as reference to apply the pre-set program.

The calculation of the virtual midnight is automatic and keeps updating during the year, adjusting to the daylight hours. The system is mostly used for parking lot lighting and streetlighting.

1-10V / DALI

These are wired lighting controlled systems, both require the installation of additional wiring besides the power supply ones.

1-10V is an analog control system, based on sending a signal to the lights between 1V (10% luminous intensity) and 10V (100% luminous intensity).

One or more lights can be controlled using this system with a motion or illuminance sensor.

The polarity of the controlling cables must be followed during the installation.

DALI is a digital control system, based on creating a network where an unique address is assigned to every light fixture, allowing an individual control and a communication with the lights to verify the status. Using the DALI network it is possible to create control groups, managing the lighting of entire buildings.

Lineswitch

Lineswitch is a cost effective one step dimming system and easy to integrate with installations where the control wire is present, where a 230V signal is distributed.

When the light drivers receive the signal, they reduce the power to the pre-set step.

The signal can be controlled from a variety of sources such as timers or motion sensors.

The possible applications of the Lineswitch vary according to the type of signal generation system, mostly used for streetlighting, parking lots, gas stations and perimetric industrial lighting.

Motion and illuminance sensors

We offer a range of motion and illuminance sensor to control our lights.

The motion sensors can control a simple on/off of the lights or reduce the intensity down to a pre-set step when motion is not detected, keeping a safety level.

The illuminance sensors can operate as a photocell or vary in real time the luminous intensity according to the ambient lighting level, keeping a constant light level in the room.

Internal sensors are available with the streetlights for a standalone control; external sensors working with 1-10V / DALI or Lineswitch are available to control groups of lights

Remote wireless control

Our street and tunnel lights are available with a proprietary remote wireless control to manage the dimming, monitor power consumption and failures.

The adjustment of the luminous intensity is done individually or by group of lights, creating up to 6 fully automatic dimming profiles.

The interface is completely online and can be used from any device including smartphones and tablets. It includes a Google Maps window for an immediate localization of the lights/group.

The communication between the interface and the wireless coordinator is totally safe and encrypted using an HTTPS protocol.

The system is composed by:

A wireless coordinator, responsible for the information exchange with the lamps (dimming commands and status check) that needs an active connection to Internet. Available in a less expensive Ethernet version or with 3G GPRS capability. Every coordinator can control up to 150 lights and the maximum distance between the it and the first light should not exceed 50m.
Radio controllers mounted inside the light fixtures, operating at 868MHz. To achieve a better operating reliability and distance, the lights create a mesh network, where every fixture replicates the signal coming from the coordinator. Consequently, not every light has to be in the range of the coordinator.

The system is mainly used to control the lighting of streets, parking lots and tunnel entrances.

Zigbee

It’s a control system that allows controlling lights directly from a smartphone or tablet using a dedicate app.

The gateway and the lights communicate using a local wireless network. No active internet connection is required for the operation.

Power-line communication

This is a system that uses the existing power cables to control the lights. A central unit sends high frequency signals through the cables, much higher than 50/60Hz, that the units mounted in the lights read as instructions to vary the luminous intensity. The system can be used with all our streetlights and tunnel lights

Luminance sensor

Our remote wireless control system and the power-line communication can be completed with a luminance sensor mounted outside the tunnel that adjusts in real time the level of the entrance lights according to the outer natural light, avoiding the black hole and glare effect.

Tunnel lighting controls

Roadway statistics demonstrate that generally, accidents in tunnels happen less frequently than on equivalent open air roads. The main reasons are that traffic in tunnels is not exposed to weather, there are no intersections, headlight glare is limited and there is no pedestrian conflict.

Entrance and exit areas however, if not illuminated properly, can be dangerous traps for road users. The glare and the black hole effect, can make a driver unable to identify obstacles such as a line of stopped vehicles or others, inhibiting a reaction in a timely manner.

The levels of luminance, illuminance and uniformities are determined from the norms according to the type of traffic, pavement quality and speed limit.

The graphic to the right shows a typical layout of the tunnel luminaires according to the light levels required in each tunnel zone.

Entrance and exit lighting have to be adjusted throughout the day to make entering and exiting the tunnel as safe as possible. At nighttime, the entrance/exit system is turned off and the internal lighting may be dimmed according to the project. The best control can be achieved controlling entrance/exit lighting with a luminance photometer, for a real time adjustment of the luminous flux according to the outside lighting level.

Lighting control systems

Tunnel lighting controls

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