3 functions of LED intelligent control technology: light detection, communication, energy measurement

At present, LED lights have entered the family of ordinary people. The combination of LED energy-saving technology and intelligent control technology is bound to be the future research direction of LED intelligent control lighting technology and the development trend of intelligent building buildings.

The connotation of LED intelligent control technology

The LED intelligent control technology is connected to the control system by the network as the platform. The lighting is controlled by the on-site control equipment scattered on each client. By changing the brightness and even the color of the light to meet the scene requirements, it is more comfortable and more suitable for the scene atmosphere. The light environment realizes the scene in which the light and shadow of the saying goes by the light and dark. LED light sources are more suitable for adjustment and control than traditional luminaires, especially the same set of LED luminaires can achieve a variety of light color changes, and traditional luminaires are difficult to achieve.

The intelligent lighting control system utilizes the now fully mature electromagnetic voltage regulator and electronic sensing device to connect the LED to the application interface of the control system. With the sensors distributed in the building, the building control managers can make full use of the data in the energy Make informed decisions about optimization, operational efficiency, and more.

Advantages of LED intelligent control technology

The LED lighting intelligent control technology enables the LED lighting to automatically dim the color according to the scene and ambient light changes through the intelligent control system, and can monitor the feedback operating state in real time on the control system's control panel to make the LED The unique performance of semiconductor components is fully utilized, and it has the following advantages:

First of all, multiple LED lights are powered by a unified centralized DC regulated power supply. Due to the use of DC low voltage drive, reliability and life are improved. Secondly, many LED light forming systems complement and coordinate, making the whole system more energy efficient and truly highlighting LED lights. The power-saving characteristics can reduce the input cost for the LED light that is turned on for a long time in 24 hours. Thirdly, it can provide the user with a more flexible and flexible energy-saving strategy to solve the heat dissipation problem after the LED light is turned on. The diode element characteristics of the LED can be utilized as a carrier for information transmission.

With the advancement of LED lamp manufacturing processes and the gradual decline in manufacturing costs, and with advanced lighting intelligent control technology, LED lights will play an important role in the broad market of various lighting applications.

The principle of LED intelligent control technology

The system can realize the adjustment of the brightness of the scene through the front-end ambient light sensing detection. In addition, the color of the lighting system can be adjusted in real time by the sensor to detect the color of the ambient light, so that the lighting equipment can adapt to the scene atmosphere. The communication function is interconnected into a network by various sensors, field control devices and hosts to achieve remote control. In addition, if the system self-test module and energy measurement device are connected, not only can the power consumed be accurately calculated, but also the pre-maintenance can be provided for the entire system. These features such as detection of ambient light color, communication, self-test and energy measurement will further save energy and reduce operating costs.

Ambient light sensors are installed at all corners of the site to sample the amount of light at the site and feed back to the host. These sensors are considered to be the outposts and eyes of the LED lighting system. When the sensor collects enough light in the room, the information is fed back to the host, and the control program darkens or even completely shuts down the spotlight, which not only saves energy but also prolongs the life of the lamp. Such front-end sensors mainly detect the lumen of the lamp, the power consumption detection, and the filtering of the infrared and ultraviolet light in ordinary sunlight.

Of course, these sensors should run efficiently and quietly in the system, and they can't consume too much power when working. Usually, the high-quality ambient light sensor should consume no more than 1 microamp, and the lumen detection range must reach 0.1 lumens to 100,000 lumens. The range of the range, which is the typical illumination range of the outdoor environment, can meet most application requirements. Considering the reliability of the system and the certain forward-looking nature, it is necessary to install a front-end optical sensor with a larger detection range. Filtering out the ultraviolet and infrared light that cannot be seen by the naked eye can effectively improve the accuracy of the feedback data of the ambient light sensor.

LED intelligent control technology features

(1) Intelligent LED light detection function

The ambient light sensor should be installed in such a way as to avoid the illumination of the light itself, so that the ambient light measurement is not disturbed or affected by other factors. When designing the line, the ambient light sensor can be placed on a separate circuit board, avoiding the illumination of the light and making it in the shadow of the light. This design enables the sensor to timely sample the light when it accurately detects that the ambient light exceeds the preset range. The data is fed back to the host so that the control system turns off the lights. If the designer adds a three-primary sensor to the system, it will add more color and vitality to the live lighting.

(2) LED intelligent communication

The design makes the lighting light into a network, and remotely controls the switching, dimming or coloring of the light through the network, which greatly facilitates the control and reduces the labor cost. The communication function makes it possible to maintain the system, especially to accurately determine the fault location and reduce the recovery time, and the system maintenance cost is reduced. Take Lutron GL7000 series dimming equipment as an example. The brand has good control performance and excellent quality of parts. Some users have reported that in the course of 9 years of use, only one case of power transformer parts has been damaged. The fault is more caused by human factors, such as the device operator accidentally breaking the communication line, resulting in poor communication problems. Because of its own communication self-diagnosis function, the exact position of the breakpoint can be detected immediately after a communication failure occurs. It facilitates the rapid repair of engineers.

(3) Intelligent LED lighting energy measurement function

With the expansion of intelligence to various fields, intelligent LED lighting systems should also have the function of power consumption statistics or calculation. At present, the power supply department has basically canceled the manual door-to-door meter reading, and replaced it with remote intelligent meter reading, almost all smart grid terminals. The devices all have energy measurement functions, which can provide more accurate and real-time power consumption data information for the power supply department and users, so that the power supply department can clear the charges, and the user can clearly understand the power consumption. Detailed information on urban buildings or municipal lighting environments can also be fed back to the city lighting management through the electricity measurement function to quickly and accurately respond to user requests by turning off unused lights or dimming in time.

Prospects of LED intelligent control technology

LED intelligent control lighting technology has a broad space for development. It is not limited to the function of lighting. By providing different control voltages to crystal diodes, it has very convenient switching, color grading, modulation and control characteristics. A smart network platform can be built to bring together the information fed back by various front-end sensors, and LEDs will play an important role in the platform to show more applications and functions.

LED lights make our traditional lighting energy-saving and environmentally friendly, and the seamless integration of LED lights with potential communication and control methods will make the building's lighting and control equipment more convenient and greener. The LED light can transmit the network signal and the control signal through the light, and emit a modulated signal to complete the transmission of information and instructions. At present, LED has widely replaced traditional lighting. If it is combined with intelligent control system, it will show the characteristics and advantages of LED lighting to the greatest extent, and truly create a low power consumption and high efficiency that meets the basic needs of intelligent control. LED lighting system.