How to do the scheme of intelligent lighting system

The office environment should not only have enough working lighting, but also create a comfortable visual environment to reduce light pollution. The lighting of modern office buildings has become one of the main factors that directly affect office efficiency, so people pay more and more attention to it. Doing a good job in lighting design and strengthening lighting control design has become an important content of modern intelligent office buildings. According to relevant information at home and abroad, the power consumption of office lighting accounts for about 1/3 of the whole building energy consumption.

Office lighting equipment costs (including lighting devices and power distribution and wiring engineering costs) account for more than 10% of electrical engineering costs. Therefore, choosing reasonable lighting scheme and configuring advanced control system can not only greatly simplify the workload of piping and wiring, but also effectively save energy, reduce the operating cost of users and improve the level of building management, which has great economic significance and social benefits. In some developed countries in Europe and America, the intelligent control of lighting system has become an integral part of intelligent buildings, and its application scope is getting wider and wider.

With the development of modern building technology, the technology of intelligent lighting control system is constantly updated to adapt to the layout of various building structures and the choice of different lamps and realize diversified control modes.

Because this is an open system, it can be easily connected with other systems such as BA, security and fire protection by using standard interfaces to complete the system integration function. At the same time, building managers can remotely control and monitor the working status of all control equipment in the building by using the monitoring software equipped with the system and the "friendly" user interface.

Second, the design analysis

Assume that there have never been two office halls, a conference room, 18 general office and two leading offices for preliminary design, and detailed design will be carried out after the use of each room is determined.

According to the statistics in the above table:

There are 10 dimming circuits and 44 switching circuits. Three four-way dimmers, two four-way relays, eighteen bidirectional relays and one unidirectional relay are used.

Configure the input device according to the following control requirements:

A scene switch is set at the entrance of the conference room, and four scenes are set: meeting, speech, projection and all off. When you enter the conference room, you can choose the conference mode. During the conference, you can easily switch scenes through scene switching. When you leave the meeting room, you just need to press the all key to turn off all the lights. In addition, there is a four-key infrared switch in the room, which is convenient to adjust the lighting independently and can be controlled remotely.

A four-key switch with an infrared receiver is set at the entrance of the manager's office, and a brightness sensor is set right above the desk. When the brightness is not enough, the brightness of the downlight can be automatically adjusted to maintain a constant illumination.

There is an infrared sensor in the corridor, which automatically turns on the light when someone enters and goes out after leaving for 20 seconds, saving electricity.

Four-key switches are set at the four corners of the office hall, which is multi-point control and easy to use. In addition, a timer is set to automatically turn on the lights before going to work, turn off some circuits during lunch break and turn off the lights after work.

There is one or two key switches at the entrance of the ordinary office, which is multi-point control and convenient to use. In addition, each floor has a timer, which automatically turns on the lights before going to work, automatically turns off some circuits during lunch break and automatically turns off the lights after work.