Abstract: Systems for monitoring a confined space include image sensors, such as cameras, and access control devices, such as intercoms and scanning devices, positioned within the interior and external to the confined space. Sensors for detecting hazardous materials, light sources, and audio output devices, such as speakers, may also be positioned within the confined space. Equipment within the confined space may be explosion proof or intrinsically safe and rated for use in hazardous areas. A first single electrical cable, such as a multi-core cable, may engage all of the system components external to the confined space to power components. A second single electrical cable may engage all of the components within the confined space to the power components. A monitoring station may receive video, audio, sensor, and access data from the system equipment and generate alarms and notifications responsive to unauthorized access attempts, hazardous materials, or irregular user incidents.

Abstract: Systems for monitoring a confined space include image sensors, such as cameras, and access control devices, such as intercoms and scanning devices, positioned within the interior and external to the confined space. Sensors for detecting hazardous materials, light sources, and audio output devices, such as speakers, may also be positioned within the confined space. Equipment within the confined space may be explosion proof or intrinsically safe and rated for use in hazardous areas. A first single electrical cable, such as a multi-core cable, may engage all of the system components external to the confined space to power components. A second single electrical cable may engage all of the components within the confined space to the power components. A monitoring station may receive video, audio, sensor, and access data from the system equipment and generate alarms and notifications responsive to unauthorized access attempts, hazardous materials, or irregular user incidents.