Occupancy And Daylight Sensor Offers Dimming Capability
29th May 2021


With the increase in technology, if you have upgraded to LED lighting and know what they offer, they benefit. One of the essential ones is having LED lights in the interior or exterior spaces. They work efficiently with daylight and occupancy sensors. These sensors give the best advantage as they save up a lot and control the consumption of energy maximally.

 

In the past years, sensor technology has been advancing and can be tuned to fit the lights' requirements. These sensors are no longer those motion detectors that turn on the lights when someone lingers around your garden or uses the standard timers that switch off inconveniently when you need it the most, giving you no choice to raise your own hands and switch the light back on.

 

The thermostatic controls advance, complement the lighting controls, and give you access to all the information about your system and create a safe and more energy-efficient building.

Today, these devices come in handy. So what's the big deal? Start saving from today itself.

 

Occupancy sensors

 

With the idea of installing these sensors, a lot of effort and money could come into place, and then I suppose you might be wrong. However, these sensors are not only for small places like restrooms or storage rooms. They can be beneficial in all places like interior or exterior spaces. They can even work with a combination of daylight sensors to have more energy efficiency and savings.

 

Despite, motion detectors only throw light when there is movement, occupancy sensors usually react to the presence of people around or animals within the given space. This results in not switching off the light as they are not timed or if you are in a stationary position, there is no time lag between the time you leave and the lights turning off.

Occupancy sensors can always be used with daylight sensors. The placement of these sensors is a very important thing to consider. Occupancy sensors can be used co-existing with dimming daylights to keep them from turning off.

 

Daylight sensors

 

These sensors retain the same amount of brightness in the space by reducing the output of LED lights replacing it with natural light. This is also called 'daylight harvesting. This means that wherever there is sunlight present in the area, there is a usage of less electricity and power, and the result is, you tend to save up on energy.

 

These sensors usually are cost-effective and help in the reduction of electricity bills, especially when it comes to large spaces like multi complexes, which require many lights during the night times in the entry and exit points and not forgetting the parking lot.

Opposing traditional programmed lights, these sensors automatically adjust and dim the lights if the natural sunlight increases. However, these sensors are not only for outdoor places but can be used indoors, which has glass or windows present. Moreover, they can be combined with occupancy sensors to give the best result out.

 

Daylight sensor benefits

 

· Saves energy- it reduces the consumption of energy by dimming or turning off the light when the sunlight or outside light enters the space. It can deliver up to 60% savings on energy in few areas.

· Comfort and convenience- maintains an appropriate light level for the area, so the area is never too dark or light. Adjusts automatically so that occupants don't have to adjust as daylight levels change.

 

 

Electric lighting controls

 

They are used in a design project to portray the best possible outcome for the system. with a specific layering, daylight lightning, and system of control gives the occupant the control of the lighting by providing appropriate lighting levels, glare minimizing, always balancing the brightness on the surface and enhancing the surrounding interior.

 

When they are used properly, the energy consumption will be more, and the life of these sensors can be extended. They help in reducing:

 

· The amount of power used during the working hours by using an automatic function of dimming lights or turning off when not required.

· Reduces the number of hours annually that is used when it is turned on.

· Allows the occupants to control lower light and saving energy.

· Minimizing heat gains internally by cutting down the use of the light, which allows to reduction HVAC system size.

 

Types of lighting controls

 

Standard on/off lights: these can be used to switch multiple lights on and off. Creative designs are developed with this simple tool if the installation is proper. An example would be lamps, and each fixture is turned on together; they can be switched on as a group or turned off when there is plenty of daylight.

 

Manual dimming: this gives occupants a lot of space for control and a degree of satisfaction. Also gives the authority to save more energy. Users are provided flexibility to change the surroundings making them more comfortable and productive. There are various families of manual dimming control, namely-

 

· Hard wired control

· Remote infrared control

· Radiofrequency control

· Preset scene control

 

Hard wired control has a dimmer, which is connected to a single zone operated by the person with the device. Preset scene control changes the level of light changes for many zones with a press of a button.

 

Remote control dimming: this is a form of manual dimming which best suits the retrofit project for minimizing rewiring. Infrared and radiofrequency are the most successful technologies in this application. Remote infrared operates the same as infrared technologies in TV, for example. Radiofrequency has a sender with 'talk' equipped to the dimmer's receiver. This permits multi-zone control from one device. In addition, personal control systems have come now into account where they can change the light, sound, heating/cooling levels in their specific environments.

 

Light level sensors/photosensors: these can be used automatically to turn on and off/ dim the light depending on the outside light.

 

Conclusion

 

Today, these sensors are playing a major part in energy consumption and savings. These can be incorporated and used with flexible and ecological benefits and saving up on costs. 

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