Generally, only the lighting control system is considered. Due to the high floor height of hotel lobbies, the traditional light source has a relatively large wattage, often using 250 or 300 watt PAR lights. Nowadays, LED is gradually being used to replace PAR lights, and the lighting can be adjusted< br /> The lighting control system in the hotel lobby takes into account the timing function, and the system automatically calls up the designated corresponding scenes during the preset time period, such as late night lighting scenes, morning lighting scenes, noon lighting scenes, evening lighting scenes, and 8-10 o'clock lighting scenes< br /> For hotel lobbies with glass curtain walls, the balance between daytime sunlight and indoor lighting is also considered. Often, when the sunlight is strong, the indoor lighting brightness is adjusted accordingly to prevent guests from feeling faint when entering the hotel lobby from the strong outdoor sunlight. Make the contrast between indoor and outdoor lighting less intense.

The case is as follows:
The lobby of the Ningbo Shangri La Hotel Apartment is designed by a Hong Kong lighting designer and the interior design of the Golden Mantis. The lighting designer has completed the lighting design and circuit division, with emergency dimming circuits, timing control and panel control requirements

Case analysis:
The circuit statistics for lighting designers are as follows:
1 emergency phase controlled 5A dimming circuit< br /> 7 normal phase controlled 10A dimming circuits< br /> Two normal phase controlled 5A dimming circuits< br /> 0-10V dimming circuit with 6 channels< br /> 1 control panel< br /> 1 astronomical clock module;

Equipment used:
4-way 5A phase controlled dimming box, model: MP0405 1; (Used as an emergency dimming box)
12 10A phase controlled dimming boxes, model: MP1210 1< br /> 8-way 16A switch+(0-10Vdc) dimming control box, model: MP0816-H 1 piece< br /> Scene controller, 128 scenes, model: MP96 1< br /> 9-key metal programmable control panel, model: MP093SS 1 piece< br /> Astronomical clock network module, model: TC1 1 1< br />
Network diagram:

The scene definition given by the lighting designer:

Main design steps:
1. Divide the lighting circuit according to the desired lighting effect< br /> 2. Consider emergency circuits< br /> 3. Create a 'dimming circuit table' and a device configuration table
4. Draw the position of the control panel and control box on the floor plan, as well as the network cable direction
5. Draw the electrical system diagram of the control box
6. Draw a network topology diagram of the lighting system