An introduction and system principle
1. Research background and development status of intelligent lighting
(1) Research background:
1 The energy crisis is increasing and energy conservation has become a worldwide issue. Lighting power continues to increase, exceeding 1/8 of the country's total electricity consumption. 2 The most important factor for a comfortable and healthy lighting environment is to stabilize the appropriate illumination. At present, more than 60% of students in China suffer from myopia, and the number of patients with myopia ranks first in the world. This is closely related to the inappropriate lighting environment. 3 The introduction of intelligent lighting can solve the above two problems at the same time. Meet the needs of modern society.
(2) What is smart lighting?
1 What is meant by "intelligence" - refers to human wisdom and mobility. From the process of feeling to memory to thinking, it is called “wisdomâ€. The result of wisdom produces behavior and language, and the process of expressing behavior and language is called “abilityâ€. The two are collectively called “intelligenceâ€. 2 What is meant by “smart lighting†– like a smart servant, able to provide the right person with appropriate and appropriate lighting services according to the local environmental conditions at the time. 3 "Intelligent lighting system" basic composition - feeling (sensory: various types of sensors), memory and thinking (brain: MCU, etc.), behavioral expression process (executing mechanism: illumination, color temperature output).
(3) Development status of intelligent lighting
1 Intelligent lighting system control methods currently have bus type, power carrier type, wireless network sensing type (Bluetooth, ZigBee) and so on. 2 Domestic intelligent lighting is mainly concentrated in the fields of public facilities, business hotels, exhibition venues, municipal engineering, road traffic and other fields. In addition, a few luxury office buildings and superior villas also use smart lighting to enhance comfort. 3 At present, the price of intelligent lighting systems is expensive, and networked intelligent lighting systems often offer hundreds of thousands or even millions.
2. The significance and innovation of the research
It can be known from the development status of intelligent lighting that the bus type scheme adopts the control strategy of integrated wiring, the wiring is cumbersome and the construction is difficult, and the damage of a single module may affect the overall operation of the system, and the extended mobility is poor. In the past decade, wireless networks and sensing technologies have developed rapidly due to their unique advantages. Their main features include fully automatic networking and close range. Such as ZigBee, WLAN, Bluetooth, etc., but it also has problems such as separation of light source and detector, complex networking, and technical difficulty, which is not conducive to the promotion of intelligent lighting systems.
(1) Project significance
Energy saving. The system makes full use of natural light, adjusts its own light output to compensate for the change of natural light, and guarantees the required illumination level with the least energy to achieve energy-saving effect. l Provide constant illumination, ensure the quality of lighting, and improve the efficiency of work and protect vision. l By streamlining the structure of intelligent lighting systems, reducing the overall cost of intelligent lighting equipment, improving the convenience of installation and maintenance of intelligent lighting equipment, and promoting the promotion of intelligent lighting.
(2) Project innovation
1 Real-time monitoring of target illumination without network. 2 Propose the working principle of constant illumination control by long-distance target optical feedback, and realize the integration of target illumination detector and LED light source. 3 A single light source can have all the functions of the intelligent lighting system, simplifying the structure of the system, reducing the overall cost of the intelligent lighting system, and facilitating the promotion and popularization of intelligent lighting.
3. Principle and design of LED intelligent lighting system for telemetry illumination
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