Gas cloud tracking system – Second Sight TC

• Automatic detection
• Real time gas cloud visualization
• Source point of the leak
• Movement of the cloud in the plant
• Network and 24/7 surveillance

Each gas has its own absorption spectrum and presents typical absorption peaks in infra-red bands II (3 to 5 µm MWIR) and bands III (8 to 14 µm LWIR). Second Sight operates in band III, in order to use the particular peaks to enable the identification of the vast majority of gases. The Second Sight measurement principle uses the scene background as an infra-red source, and image processing algorithms to highlight the presence of a gas cloud in line of sight.

In the event of an alarm, the presence of a gas cloud is displayed as an overlay on the infrared image. The identification and estimated path length concentration are given in the top left corner and the gas is underlined in red in the gas list.

The latest version of Second Sight is becoming a universal gas detector with its new detection algorithm Gas X, an unknown gas detection capability that enables the detection of any gas cloud modifying the infrared signature in band III of the observed scene, even if the gas is not listed in the system’s database.

Lightweight and compact battery designed with Lithium-ion technology to offer 5.5 hours of autonomy.

The GPS coordinates of the Second Sight is given in the Graphic User Interface. It highlights the area of surveillance on a map. Integrated with a compass, it also gives the direction of the Second Sight when used with Pan&Tilt.

Second Sight is integrated into a pressurized stainless steel enclosure for installation in an area where an explosive mixture is not likely to occur under normal operating conditions (zone 2). While a shelter protects the system from direct sunlight, its temperature is regulated by Vortex.

This software manages every aspect of Second Sight in a chemical plant (multiple sites are possible). This software checks the various states of Second Sight (alarm, default and power cut off), presents the state of the system on the screen and displays the alarm video if a gas is detected.