After the terrorist attack at the World Trade Center in New York, the American Fire and Security Services (AFSS) reported increasing such attacks. Therefore, it is necessary to develop a new fire alarm detector that responds to smoke or dust particles released by the fire. The main idea behind this system was to create an alarm if someone releases gas before a planned explosion, like in aircraft hijackings and other criminal activities related to explosives.
This paper describes the development and implementation of a technology-based IR light source sensor to detect gas release events and trigger alarms. Effective range can be extended beyond normal operational limits for high sensitivity applications by using suitable optics. Such installations prove their efficiency as additional security measures against hazardous materials threats as well as mistaking alarms. Servicing of such sensors is simplified by no need to take them out of the system.
This design offers a reliable and straightforward way to detect gas release events without excessive false alarm rates for early warning.
The first practical application for this technology was a fire detector that could be used as an additional security measure against aircraft hijacking or terrorist attacks at airports. Other possible applications are the protection of oil depots, chemical plants, etc… from acts involving hazardous material releases.
A similar system may also use more general military applications and other high-security installations subject to particular threat scenarios. In some instances, it may replace existing more complicated gas detectors depending on requirements and cost factors.
In most cases, smoke detectors do not provide any information about the type of fire that produced the smoke. To be helpful, this information should come from other equipment such as video cameras and alarms.
The main idea behind this system was to create an alarm if someone releases gas before a planned explosion, like in aircraft hijackings and other criminal activities related to explosives. This paper describes the development and implementation of an IR light source sensor technology for detecting gas release events and triggering alarms. Effective range can be extended beyond normal operational limits for high sensitivity applications by using suitable optics. Such installations prove their efficiency as additional security measures against hazardous materials threats as well as mistaking alarms. Servicing of such sensors is simplified by no need to take them out of the system. This design offers a reliable and straightforward way to detect gas release events without excessive false alarm rates for early warning.
The first practical application for this technology was a fire detector that could be used as an additional security measure against aircraft hijacking or terrorist attacks at airports. Other possible applications are the protection of oil depots, chemical plants, etc… from acts involving hazardous material releases. A similar system may also use more general military applications and other high-security installations subject to particular threat scenarios. In some instances, it may replace existing more complicated gas detectors depending on requirements and cost factors.
In most cases, smoke detectors do not provide any information about the type of fire that produced the smoke. To be valid, this information should come from other equipment such as video cameras and alarms.