Intelligent Lighting System
is changing the way the light behaves. Today, luminaires are smart and controllable, allowing the light to be set to the user’s preferred intensity and color, especially to suit their emotional state and improve the ambience around them. Therefore, the intelligent lighting control system

It is widely used in indoor and outdoor lighting setups in residential, commercial and industrial spaces. These IoT lighting control systems allow for wireless control of luminaires via Bluetooth devices, featuring ease of use and convenience. They also maximize energy savings, meet building codes, and comply with green building and energy-efficiency programs.

1. Types of lighting control systems

The two main types of lighting control systems are analog lighting control
(eg 0-10V) and digital lighting control

(such as DALI), which have their own characteristics according to their application and function.

1. DALI system

DALI-based digital control systems are among the most popular. Abbreviated as Digital Addressable Lighting Interface, it is an open standard digital lighting control protocol that is interoperable with luminaires from different manufacturers (according to the IEC 60929 and IEC 62386 international standards). It consists of a controller and a power supply. Power supply and one or more slave devices with DALI interface to control light intensity, CCT and color. DALI systems can handle a single fixture or multiple fixtures via multicast and broadband messages. It can be arranged in bus or star topology
can also be combined to reduce multiple wiring needs and expenses. This is also a two-way system, enabling the controller to monitor and control each device for troubleshooting.

Advantages of the DALI system:

(1) Open IEC standard for all users to use;

(2) digitally addressable;

(3) Easy debugging and higher control flexibility;

(4) Polarity-independent two-wire control

;

(5) Continuous improvement and expansion.

DALI system usually accommodates 64 lamps for control in one DALI production line, ZIGBEE Module and allows users to set 16 groups and 16 scenes. However, it is also possible to control more luminaires with the system with the help of additional bridges.

2. 0-10V system

0-10V lighting controls are all analog dimming systems
The most commonly used method in . The controller in this system is connected to each light fixture by individual wires, where the DC voltage signal varies between 0 volts and 10 volts. Each voltage value

Corresponds to a specific light or brightness level, meaning, 0 volts corresponds to off, 1 volt corresponds to dim light, and 10 volts corresponds to bright light. 0-10V is much simpler than other lighting systems and can be best used to control individual lights.

Unlike digital systems, 0-10V dimming is not addressable. It dims or brightens all fixtures in the chain simultaneously and at the same level. 0-10V can be used in facilities that need to perform one operation on all devices and reduce operational complexity.

Advantages of 0-10V system:

(1) Simple dimming workflow;

(2) Cost-effective dimming method;

(3) Easy to troubleshoot;

(4) Seamless installation;

(5) Change the intensity or CCT of the lamp, because the voltage signal

Only a single range of lighting levels is allowed.

Typically used in commercial and industrial lighting, this system features luminaires with LED drivers designed for 0-10V DC dimming input.
2. Application scenarios

1. DALI dimming application

The original role of DALI is actually to provide an interface for lighting, a digital interface for dimming. This interface can be connected to the sensor through expansion, so that DALI can directly become a USB interface in lighting. The lighting system realized through DALI It can be applied to the following scenarios:

① A lamp is directly connected to the sensor through DALI, forming the most convenient intelligent sensing system.

② It can be extended and connected to other communication networks through the DALI interface, so as to connect to other systems.

③ Direct access to DALI bus, through the independent addressing characteristics of DALI, group control can be performed, or DALI can be directly regarded as its subsystem application.

2. 0-10V dimming application

The advantage of using 0-10V system dimming lies in its simple application, good system compatibility, high dimming precision and good dimming effect, generally by inputting 0-10V analog signal (according to 0-10V voltage range) Controls the average current passing through the LED

, Generally, the dimming is realized by controlling the PWM pulse modulation. In the 0-10V dimming system, the power supply design needs to have a control chip, so that when the 0-10V dimmer is connected, the voltage of the system can be passed. Change to control the output current of the power supply, so as to achieve the brightness and switch of the lighting system.