It is very important for hotels to choose the right sensors to control the lights, which can significantly improve the hotel grade and energy saving benefits. The selection of sensors should be based on four elements: customer experience, energy saving, management and cost.

Here is a detailed sensor selection plan and recommendations for different areas of the hotel.

1. Core Principles:

1) Experience First: Never cause inconvenience to guests (such as fumbling in the dark).

2) Reliability: Minimize failure rates and avoid false alarms or non-actions.

3) Moderate Energy Efficiency: Achieve automated energy savings while ensuring a good experience.

4) Convenient Management: Facilitate maintenance and management by the hotel's engineering department.

2. Regional selection recommendation

The functions and needs of different areas in the hotel vary, and sensors should be selected according to local conditions.

1) Room Interior - Preferred: Millimeter Wave Radar Presence Sensor

For example, the main area of the guest room (entrance hallway, bedroom, office area).

A: Millimeter wave radar sensors are capable of high-precision presence sensing: they can detect guests' stationary states (such as sleeping, reading, or using a computer), and will not accidentally turn off lights when guests are stationary; It can also protect customer privacy, without collecting image information, only sensing human movement; Moreover, it has strong penetrability and can be embedded in ceilings or cabinets to maintain a beautiful decoration.

B: The millimeter wave radar sensor can automatically light up the entrance corridor lights at the moment of opening the door, creating a welcoming atmosphere; And when someone is detected, the main/ambient lights will remain on; After a period of inactivity (such as 10-15 minutes), all lights will automatically turn off; In night mode, it can be set to automatically dim and turn off all lights when a person is stationary on the bed.

2) Guest room bathroom - preferred: millimeter wave radar+infrared sensor

For example: bathroom, shower room.

A: Millimeter wave radar and infrared sensors can reliably detect various states, such as sitting still and showering (not afraid of water vapor interference, with excellent performance).

B: Millimeter wave radar+infrared sensor automatically lights up the exhaust fan and mirror headlights when people enter, and can also be adjusted to 50% brightness to avoid glare in the middle of the night; It can also ensure that the light will not turn off throughout the entire usage period; After the person leaves, it is possible to keep the exhaust fan working for a period of time before turning off all devices to eliminate moisture.

3) Public areas - on-demand selection

A: For example, in corridors, high-quality passive infrared sensors or radar sensors can be selected.

Realize the concept of 'full brightness when people come, slight brightness when people walk'. When a person is detected, adjust the lighting in that area to 100% brightness; After the person leaves, the light automatically adjusts to 30% "maintenance brightness" to save energy and ensure safe lighting. Loop control can be used to sequentially light up the front lights to create a guiding effect.

B: For example, in stairwells, underground garages/offices, and employee backstage, infrared or radar sensors can be selected.

Realize the principle of 'people come to light up, people go to turn off the lights'. These areas have fast personnel flow and are only transitional zones. They light up when people come and turn off when people leave, ensuring safety and energy efficiency.

C: For example, in conference rooms and banquet halls, millimeter wave radar suppliers or ultrasonic sensors can be selected.

Realize 'large space, full coverage'. After the meeting/banquet starts, activate the sensing control to ensure that the lights remain on when someone is using it. After all people leave, automatically delay turning off all lights.

3. Installation suggestions

1) System integration:

It is best to choose sensors that can be integrated into the hotel building automation system or intelligent guest room system to achieve centralized management and data monitoring (such as which room sensor is malfunctioning), rather than purchasing separate items.

2) Set a reasonable delay time:

Room: 10-15 minutes (avoid turning off the lights when guests leave the room briefly).

Toilet: 5-10 minutes (ventilation takes a long time).

Corridor: 1-2 minutes (fast response and energy-saving).

3) Keep manual switch:

All sensing controls must be connected in parallel with the wall manual switch! This is necessary to ensure that guests can manually merge with automatic control and turn on or off the lights at any time.

4) Professional installation and debugging；

Installation and debugging must be carried out by professional electricians or hotel intelligent system integrators to ensure reasonable detection range, sensitivity, and delay time settings.

For hotels, the most recommended solution is to use highly reliable millimeter wave radar sensors in guest rooms and cost-effective infrared or radar sensors in public areas, and integrate them into the overall intelligent control system of the hotel. This can greatly enhance the guest experience, while quickly recovering costs through precise energy-saving control, making it an inevitable choice for modern smart hotels.