
AERONAUTICS

Although the loss of a hangar has a certain cost, the loss of an aircraft is far more expensive.
This loss results in a loss of revenue due to the disruption of the service. This loss of income can lead the company to bankruptcy. SigniFire provides early detection. The system enables effective and rapid action in the event of a fire or intrusion. The likelihood of using the expensive AFFF system is greatly minimized.
Difficult environment
Hangar environments are challenging for fire detection due to sudden changes in brightness or temperature when doors open. Their large volumes can lead to a delay in detection with traditional smoke detectors. These factors, as well as numerous ignition sources, make SigniFire the ideal candidate for early detection.
Why video detection of flame and smoke?
Video detection of flame and smoke has several advantages over traditional detection:
- Early detection: The cameras see the fire at its source and therefore manage to detect it. Earlier than conventional detectors. These require that the smoke reach their sensors.
- Immediate information on the situation: It is a network camera; the images can be viewed in real time in a remote monitoring center. Alarm verification is immediate and reliable.
- Less equipment to install: Each SigniFire camera covers a large area, which translates into a savings in sensors. The goal is one reduction of installation and maintenance costs.
How does SigniFire work?
The video analysis software uses artificial intelligence:
- Analysis of images of 640x480 pixels at a rate of 15 images per second.
- 4.5 million data points analyzed by the camera's Texas Instruments DSP processor.
- The software uses temporal patterns and DSP filters and compares the results with a neural network based on 15,000 fire simulation models.
- The alarms are routed via dry contacts and/or via Ethernet.
What fire protection systems have traditionally been used in the protection of hangars?
- Sprinklers: Sprinklers are triggered by an increase in temperature. They are designed to save the building’s foundations and not its contents.
- Linear heat detector: Linear heat detectors can be used upstream of the sprinklers. These are triggered at an increase in temperature and not at an early stage.
- BEAM detector: The beams are placed at the ceiling level and can cause false positives. These
are caused by an obstruction of the beam (objects, thick dust...).
- Suction system (ASD): ASD systems have a major disadvantage in dusty environments. The sensors become blocked, which impairs detection and increases the need for maintenance.
Applications
The SigniFire technology is suitable for the following environments:
• Airports
• Hangars
• Terminals
• Airports
• Aérospatiale manufacturing plants

