Infrared Thermography —

 

Digital and infrared cameras mounted to quad-rotor UAVs; capable of Building envelope thermal signature scanning and roof thermal & moisture detection

Infrared Thermography —

 

Digital and infrared cameras mounted to quad-rotor UAVs; capable of Building envelope thermal signature scanning and roof thermal & moisture detection

Mixed Digital and Infrared Images

QEA IR Image processing examines all aerial images and a wide range of issues can be identified, such as radiation, cracks and water leakage.

Image interpretation is based on image characteristics (also called image attributes). These image characteristics are: color, size, shape, texture, shadow, association, and pattern. QEA images are Infrared (IR), Digital, and combination of IR and Digital (MSX)

infrared thermography

Figure 1: The color of the roof (North-West) in this image is indicative of the water leakage that is not visible. The dark color shows thermal capacity of water that is higher than other material in the roof. The pattern also shows the moisture penetration.

Infrared Thermography

  • Equipment – Digital and infrared cameras mounted to quad-rotor UAVs.
  • Method – software controlled UAV flight and pre-planned scanning
  • Images – The number of IR images for high rises can be more than five hindered depends on the building size and location.
  • mage type – QEA images are Infrared (IR), Digital, and combination of IR and Digital (MSX)
  • Data – Each image has several attributes and data.
  • Pixel size – The pixel size in most of IR images is approximately 2cm x 2cm.

Attributes

Each image has several attributes and information, some of them are:

  1. Maximum, Minimum, and Average Temperature
  2. Temperature range
  3. Emissivity and Reflected Temperature
  4. Distance
  5. Average Temperature Difference
  6. Negawatt (calculated by QEA System)

QEA Tech generates some processed images e.g. Automatic Leakage Detection (ALD).

infrared thermography

Sample finding that QEA System can generate for an image that was taken from 20m distance

infrared thermography

Size of uninsulated area is 11.6m2

The energy loss:

  • Current state: 714.3 w/h
  • Based on standard codes: 542.88 w/h
  • Negawatt (loss): 171.4 w/h
  • Heating/cooling cost: $0.11 kw/h
  • Cost per year: $165.19

ROI is 18.5% per year*

  • The cost of repair: ~$1000
  • Life of measure: 20 years

*(assumes 3% energy price inflation and 6% interest rate)