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The Most Advanced Digital Dimming-DALI Dimming

DALI (Digital Addressable Lighting Interface) is a flexible and intelligent lighting control system that allows for digital management of modern lighting. It is built on an open standard protocol, meaning any manufacturer can use it.

Let’s delve into the key points about DALI:

 

1, The name card of DALI

What-is-DALI-Dimming?
The name card of DALI

DALI: It is the abbreviation of Digital Addressable Lighting Interface. First appeared: In 1991, Austrian manufacturer Tridonic (Ruigao) jointly organized the development of DALI.

World DALI Association: Established in 2001

Purpose: Responsible for promoting the DALI standard, specifying new protocols and establishing standardized certification processes.

Dimming Features:
1. Adopt Manchester encoding format transmission, with overall, packet dimming, addressing dimming, a variety of scene mode Settings and other powerful dimming functions;
2. It is a typical digital dimming control method.

 

2, Characteristics of DALI system

It can achieve 3 functions
  • Switch: One, a group, or all of the ballasts in an independent control system
  • Dimming: need ballast with dimming function; Through the bus control ballast to achieve 1% to 100% dimming
  • Lighting scene control: read the status of all ballasts

DALI Maximum number: There are 64 nodes connected to the DALI protocol, that is, 64 ballasts can be coded separately.

DALI scene editing: Each ballast can be set up 16 lighting scenes, the same ballast can be compiled in one group or more groups, the maximum number of groups is 16.

 

 

3, The composition of DALI dimming system

The DALI dimming system’s composition includes controllers, dimmers, lighting devices, the DALI bus, and the application controller. This system allows precise control over lighting levels and enhances energy efficiency.

  1. DALI Controller:
    • The central component of the system is the DALI controller.
    • It sends digital control signals to individual light fixtures and receives feedback from them.
    • The controller manages the entire DALI network and communicates with each DALI device.
  2. DALI Dimmers:
    • DALI dimmers are used to adjust the brightness of individual light fixtures.
    • Each DALI dimmer can control multiple DALI-compatible devices, such as LED drivers or ballasts.
  3. DALI Lighting Devices:
    • These include various types of lighting fixtures, such as LED luminaires, fluorescent lamps, or other DALI-compatible devices.
    • Each device has a unique address within the DALI network, allowing individual control.
  4. DALI Bus:
    • The DALI bus consists of two wires used for communication.
    • One wire sends digital control signals from sensors and input devices to the application controller.
    • The other wire generates outgoing signals for devices like LED drivers.
    • DALI communication is not affected by polarity, and it can be set up in various ways.
  5. Application Controller:
    • The application controller applies the rules programmed into it.
    • It manages the DALI network, processes commands, and ensures proper communication between devices.

DALI wiring diagram

 

 

4, Why choose DALI Dimming?

DALI (Digital Addressable Lighting Interface) is an advanced digital dimming technology. Here are some key points to help you understand DALI dimming:

4.1 DALI dimming is addressable

DALI dimming each led light will have an independent address, can be two-way communication, this is analog technology can not do, it can use a signal line to connect all the lamps after any grouping control, can bring a lot of flexibility to the control, combined with its sensor, timing control can bring significant energy saving effect.

4.2 DALI dimming installation is simple

DALI system wiring, installation cable has no special requirements, installation also has no polarity requirements, only the main power cable and the control line separated, the control line does not need to be shielded. It should be noted that the maximum current on the control line is 250mA, the maximum line length is 300 meters, and the online voltage drop should not exceed 2V

4.3 Two-way communication

DALI can not only send instructions to the lamps, but also receive information from the lamps. This means that the system can obtain the status of the fixture, such as brightness level, power status, etc.

4.4 Compatibility

DALI is an open, non-proprietary standard, which means devices from different manufacturers can work together in the same DALI system.

4.5 Flexibility

DALI systems can be flexibly configured and reconfigured to meet changing lighting needs.

Therefore, DALI dimming is considered the most advanced digital dimming technology, which provides a high degree of flexibility, accuracy and control capabilities.

 

DALI VS Ordinary Dimming

 

4, Application of DALI in outdoor lighting

 

4.1. Smart street lights and smart light poles: The DALI system can be applied to smart street lights and smart light poles, connecting different lamps through wireless communication modules (such as zigbee, LoRa and NB-IoT). In these applications, DALI can realize remote control and monitoring of lamps, improving lighting efficiency and energy saving effects. For example, by combining DALI systems with IoT technology, smarter lighting solutions can be achieved. This includes integrating sensor technology into the DALI lighting system to sense the surrounding environment and then automatically adjust the lighting.

4.2. Outdoor high-power waterproof power supply: DALI interface is also widely used in outdoor high-power waterproof power supply, which allows DALI to be used as a standard control interface for lamps. This application can make the DALI system better adapt to the outdoor environment and provide stable and reliable lighting control. It can also realize remote monitoring and management of power supply through the DALI system, improving the efficiency and life of the power supply.

4.3. Internet of Things application: DALI lighting system can be combined with Internet of Things technology to achieve smarter lighting solutions. For example, integrating sensor technology into the DALI lighting system can sense the surrounding environment and then automatically adjust the lighting. This application can make the DALI system better adapt to the outdoor environment and provide smarter and more humane lighting services.

4.4. Commercial lighting and professional venue lighting: DALI has a relatively long application history in commercial lighting and professional venue lighting. For example, lighting on outdoor billboards or sports venues can be controlled via a DALI system. This application allows the DALI system to provide more professional and refined lighting control to meet the special needs of commercial and professional venue lighting.

4.5. Public lighting system: DALI system can also be applied to public lighting systems, such as the lighting of outdoor public spaces such as parks, squares, streets, etc. Through the DALI system, centralized control and management of public lighting can be achieved, improving the efficiency and energy-saving effects of public lighting.

4.6. Traffic lighting system: DALI system can also be applied to traffic lighting systems, such as the lighting of roads, tunnels, bridges and other traffic facilities. Through the DALI system, centralized control and management of traffic lighting can be achieved, improving the safety and energy-saving effect of traffic lighting.

4.7. Landscape lighting system: DALI system can also be applied to landscape lighting systems, such as the lighting of outdoor landscapes such as parks, gardens, squares, etc. Through the DALI system, centralized control and management of landscape lighting can be achieved, providing more beautiful and comfortable lighting effects.

4.8. Security lighting system: The DALI system can also be applied to security lighting systems, such as the lighting of outdoor security facilities such as parking lots, corridors, entrances and exits. Through the DALI system, centralized control and management of safety lighting can be achieved, improving the efficiency and safety of safety lighting.

Dali- Daily reading and sleep patterns
Dali- Daily reading and sleep patterns
Dali-Meeting patterns
Dali-Meeting patterns
Dali-Educational lighting mode
Dali-Educational lighting mode

 

Summary

DALI enhances indoor and outdoor lighting by providing flexibility, energy savings, and intelligent control.

Whether it’s room lighting, educational lighting, street lighting, floodlights, or urban planning, DALI plays a crucial role in creating efficient and adaptive outdoor lighting solutions. 

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