Challenge
During a planned plant turnaround, a petroleum refinery brings hundreds of temporary workers, contractors, and additional equipment for maintenance and upgrades. The heightened activity transforms site layouts daily, creating security blind spots and increasing safety risks. Traditional fixed cameras and wired systems could not adapt quickly enough to cover temporary zones, while inconsistent contractor movement tracking made it difficult to maintain compliance and accountability. Maintaining both regulatory compliance and safety under tight operational deadlines requires a portable, intelligent, and rapidly adaptive monitoring system.
Solution
A fleet of mobile surveillance trailers was deployed with telescoping masts, PTZ cameras for wide area surveillance, and integrated lighting and PA systems for perimeter deterrence. Each mobile surveillance unit operates independently through onboard solar and battery power, providing immediate 24/7 coverage in areas unreachable by fixed infrastructure. Security teams strategically positioned the mobile surveillance unit at contractor entry points, laydown yards, and temporary construction boundaries, offering overlapping fields of view that could be adjusted daily.
In tandem, IoT monitoring solutions were layered into maintenance zones, collecting environmental and operational data including gas leak detection, heat and vibration levels, door status, and restricted area motion. These data streams traveled securely via LTE to the refinery command center, where a software integration suite merged live video, access activity, and alarm data onto one visualization dashboard.
Mobile surveillance units were moved frequently to align with shifting safety hot zones. Reconfiguration required minimal labor—each unit could be redeployed in less than an hour with full network connectivity automatically reestablished. The system’s analytics provided highly accurate differentiation between authorized and unauthorized presence through badge scanned events.
Result
Throughout the eight‑week turnaround, overall site visibility increased substantially as mobile surveillance units provided continuous coverage of high‑risk zones. Unauthorized access alerts dropped by more than 70%, driven by proactive repositioning and verified visual oversight that eliminated blind spots. Safety teams also documented a 25% reduction in near‑miss incidents compared with previous cycles, crediting faster event detection and targeted interventions. Supervisors noted that the real‑time monitoring dashboard improved coordination among contractor leadership, safety personnel, and central operations, allowing teams to respond quickly and decisively to emerging risks.
After the turnaround, the modular system was redeployed to another facility within the same organization, demonstrating its adaptability across varying site layouts and operational demands. This reusability reinforced the long‑term value of Mobile Pro Systems’ solution as a scalable infrastructure asset rather than a one‑time deployment.
