Using Grid-EYE Sensors In Building Management Systems
The Grid-EYE is an Infrared Array Sensor with 64 thermopile ‘pixels’ arranged in an 8 x 8 array. As a passive infrared component, this sensor can be used in similar applications to PIR sensors. However, the Grid-EYE holds a distinct advantage over traditional PIR sensors in that it detects absolute temperature instead of just a change in temperature. This allow the Grid-EYE to collect more data about the warm bodies in its field of view, such as being able to see motionless objects as well as what direction objects are moving in. With this data, it is possible to monitor a room more closely and get detailed information without invading the privacy of the people in the room.
Figure 1: Grid-EYE Infrared Array Sensor vs. PIR Sensors
What Is A Building Management System (BMS)?
As sensing technologies get smarter, so do the applications that utilize them. Building Management Systems (BMS), or Building Automation Systems (BAS), have become more popular in recent years as a way to lower overall energy usage of buildings, while tightening up security in the process. Among the building functions controlled by these systems are: Lighting, HVAC, Security, Fire Alarm, Access Control, and Plumbing. By optimizing these systems in response to real time changes in occupancy, the building can intelligently control these functions to lessen its energy and resource footprint. The ultimate goal is a ‘greener’ building that is more environmentally friendly.
The Grid-EYE Infrared Array Sensor Is An ‘Eye in the Sky’
Because of its unique advantages over traditional motion sensors, the Grid-EYE is the best technology for monitoring areas for security and/or occupancy detection. With the Grid-EYE, you can track individuals entering or leaving an area and detect people when they have stopped moving, or are sitting stationary. This helps control the lighting and HVAC in the office space. The Grid-EYE is best used mounted from the ceiling to achieve a wide area of detection. This allows for the Gid-EYE to have a ‘birds-eye view’ of the area and track warm bodies wherever they are located.
The Grid-EYE can also be utilized on the fire and security side of BMS when placed near sensitive entryways. The sensor can monitor the area to prevent unauthorized ‘tailgating’ and provide a tighter control over building access. In the event that an evacuation is needed, the sensor can also assist in verifying that all individuals have vacated the building.
The Grid-EYE is a unique technology that is perfectly suited for building management and automation.