Security Trailer & Surveillance Glossary

4K (Ultra HD): Camera resolution of 3840×2160 pixels, four times the pixel count of 1080p. Whether it is useful for identification depends on lens choice, distance, lighting, scene conditions, and recording settings. The written configuration states the selected camera resolution.
AI Analytics: Software running on the camera or a connected server that classifies what it sees — person vs. vehicle vs. animal vs. environment. Reduces nuisance alerts (e.g., a deer crossing the site) and lets the monitoring center focus on real threats.
Builder's Risk Insurance: Specialized property insurance covering buildings under construction, renovation, or installation. Surveillance requirements vary by policy and carrier; see how we document a quoted configuration.
CCTV (Closed-Circuit Television): A self-contained video surveillance system whose feed is delivered only to authorized monitors — not broadcast publicly. The original 1940s term has stuck even though modern systems use IP networking.
Cellular Failover: The system automatically switches to 4G LTE cellular when its primary internet (typically Wi-Fi or wired) fails, ensuring monitoring continues uninterrupted. Critical for jobsite trailers without permanent broadband.
Cloud Recording: Video footage stored on remote servers rather than locally on the trailer. Survives theft or destruction of the unit, and accessible from anywhere with credentials.
Deterrent: A visible or audible signal that discourages would-be intruders before they breach. Strobe lights, audible sirens, and live two-way audio warnings are all active deterrents — versus passive recording, which only documents what happened.
Dispatch (Police / Security): The process by which a monitoring center notifies law enforcement or a private security responder of a verified threat. Verified-response policies (the alarm operator confirms the threat first) result in higher police priority than unverified alarms.
Fixed Camera: A camera with a permanent field of view, in contrast to PTZ. Fixed cameras are simpler, more reliable, and ideal for guarding specific zones (a gate, a fuel tank, an entrance).
Honeypot Field: An invisible form field that humans skip but bots fill out. If filled, the form silently accepts the submission without acting on it — preventing automated spam without burdening legitimate users with CAPTCHAs.
IP66 (Ingress Protection): An international rating: "6" = totally dust-tight; "6" = protected against powerful water jets from any direction. The standard rating for outdoor surveillance hardware that must survive Chicago weather.
IESA (Illinois Electronic Security Association): The Illinois trade association for the electronic-security industry. Verify any supplier membership directly when it affects procurement.
LPR (License Plate Recognition): Camera + software combination that automatically reads vehicle license plates in real time. Used to flag known offenders, log lot entries/exits, and provide actionable footage for police investigations.
Mast: The vertical structure that elevates cameras above sightline obstructions. Available height and placement depend on the selected trailer configuration and site plan.
MBE (Minority Business Enterprise): A certification from the National Minority Supplier Development Council recognizing a qualifying minority-owned business. Verify a supplier’s current certification directly when it affects procurement.
Monitoring Tier: The level of human oversight applied to a surveillance feed. Self-monitored means the client watches the feed; reactive monitoring responds to alarm triggers; a virtual-guard configuration adds operator review and response. The written quote identifies the selected arrangement.
Motion-Activated: Cameras or alarms that trigger only when sensors detect movement, conserving power, storage, and operator attention. Modern systems combine motion + AI classification to filter out wildlife and weather.
NCIC (National Crime Information Center): The FBI-maintained database of stolen property, wanted persons, and missing persons. NCIC entries are the foundation for cross-jurisdictional recovery of stolen construction equipment.
NER (National Equipment Register): An industry registry of construction and heavy equipment. When using registry statistics, check the original report date, geography, definitions, and collection method before applying them to a project.
NICB (National Insurance Crime Bureau): A non-profit organization funded by ~1,000 insurance carriers to investigate and prevent insurance crime, including vehicle and catalytic-converter theft. Authoritative source for theft trend data.
NVR (Network Video Recorder): The on-trailer device that ingests and stores camera feeds. Modern NVRs run AI analytics, manage cloud upload, and serve as the central hub for the trailer's surveillance subsystem.
OSHA (Occupational Safety and Health Administration): The federal agency that regulates worker safety on US job sites. A camera system does not itself establish OSHA compliance; ask the responsible safety professional what documentation is required.
PTZ (Pan-Tilt-Zoom): A camera that can pan left/right, tilt up/down, and zoom in/out remotely. Lets one camera cover what would otherwise need three or four — and lets a remote operator follow a suspect across a site.
Rapid Deployment: Industry shorthand for moving temporary equipment to a site faster than a permanent installation. Actual scheduling depends on configuration, location, and availability and should be confirmed in writing.
Remote Monitoring: A trained operator at a monitoring center reviews selected alerts or live views under a defined schedule and response plan. Available steps may include verification, audio warnings, customer notification, or escalation. Synonym: virtual guard service.
Self-Monitoring: The customer or another authorized user reviews the feed rather than relying on a professional monitoring service. Remote access and professional monitoring are separate configuration categories; the written quote identifies the selected arrangement and price.
Strobe Deterrent: A flashing light triggered by an alarm system. It may be used with a siren or audio device as one visible deterrence option; suitability and operation depend on the site configuration.
Thermal Imaging: A camera that detects heat radiation rather than visible light, letting it "see" people, animals, and recently-driven vehicles in total darkness or smoke. Standard for critical infrastructure, optional on most other configurations.
Two-Way Audio: The trailer has a speaker AND a microphone, letting the monitoring operator speak directly to a person on-site ("You are being monitored. Police have been called.") and hear their response. Among the most effective active deterrents available.
Uptime: The percentage of time a system is operational. Power, connectivity, equipment, maintenance, weather, and site conditions can affect uptime; any service level must be stated in the applicable agreement.
Virtual Guard Service: Remote operator review performed under a defined schedule and response plan. Available steps may include event verification, audio warnings, customer notification, and escalation. See the remote video monitoring page.
VMS (Video Management System): The software layer that ingests camera feeds, runs analytics, archives footage, and presents it to operators. Common enterprise VMS platforms: Genetec, Milestone, Hanwha Wisenet WAVE.
Wattage (solar / battery): The power-output rating of a trailer’s solar panels and battery system. The required capacity depends on equipment load and expected site conditions; consult the written configuration for unit-specific ratings.
Wireless: In jobsite-camera context: requires no wired internet at the site. Cellular (4G LTE) is the most common backhaul. Critical because new construction sites rarely have permanent broadband installed.

Have a term we missed?

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