Communication technology continues to change, and now diversified development trend.

The Internet of things and intelligent lighting have developed to the present stage. The market has sprung up all kinds of communication technologies, such as DALI, ZigBee, Bluetooth, Wi Fi, LoRa, n b IOT, Sigfox, Zn wave, EnOcean and so on.

In the field of indoor lighting, although there are many wireless communication protocols that can be applied, the DALI cable technology that is specially designed for lamps and lanterns still occupies the highest market share. The system based on DALI protocol has a distributed intelligent module. Each module has digital control and digital communication capability, and the address and lighting scene information are stored in the memory of each DALI module. The DALI module performs digital element communication, transfer instructions and state information through the DALI bus, and realizes the functions of switch, dimming control and system setup.

More stable and more reliable system is the greatest advantage of cable control technology at present, but with the growing maturity of wireless technology, it will become the mainstream control technology in the future. The market share of DALI is expected to shrink in the future, while ZigBee and Bluetooth will occupy the main position, in which ZigBee is the most common wireless communication protocol for the network of lamps and lanterns. Because of the long development time and relatively mature technology, ZigBee's network architecture has its own advantages, and in addition, it saves electricity. Taking the Chinese market as an example, more and more Chinese manufacturers are beginning to join the Zigbee alliance, and products have gradually shifted from most of the past to the domestic market.