Proximity Detection Systems
Intelligent radar and RFID-based systems that detect people and vehicles in proximity to heavy equipment. Provides visual and audible alerts to operators before accidents occur.
Overview
Preco Electronics (acquired by Sensata Technologies) specializes in advanced radar-based proximity detection and collision avoidance systems under the PreView® brand. These systems are widely used in mining for heavy equipment like haul trucks, excavators, loaders, shovels, ADTs, water trucks, and other surface mining machinery. They provide active blind-spot monitoring to detect people, vehicles, and stationary/moving objects in high-risk zones, reducing struck-by incidents, collisions, and fatalities in dusty, extreme, and low-visibility mining environments. The flagship product line includes models like PreView Sentry® (including Sentry®X and 79GHz variants), designed specifically for harsh industrial and mining conditions.
Advanced Features
Engineered with cutting-edge technology to provide unmatched visibility and safety
Patented Pulsed/FMCW Radar Technology:
Uses radar (including advanced 79GHz options) to detect both moving and stationary objects reliably, unaffected by dust, fog, rain, snow, or extreme temperatures
Adjustable Detection Zones:
Configurable zones (up to 5 color-coded zones) with ranges up to 10m (32 ft) or more per sensor. Multiple sensors enable near-360° coverage without false alarms
Audible and Visual Alerts:
In-cab alarms (beeps, tones) and visual indicators (LEDs, displays) warn the operator instantly with graphical zone displays.
Multi-Target Detection:
Advanced Sentry® versions track up to 16 objects simultaneously, identifying location, speed, and direction for precise warnings.
Rugged, Mining-Grade Build:
IP67/IP69K-rated sensors withstand impacts, corrosion, heavy vibration, and extreme weather typical in quarries and mines.
Integration Flexibility:
CAN-based communication for easy retrofit or OEM installation; compatible with cameras, monitors, GPS, telematics, or braking systems.
False Alarm Filtering:
Intelligent algorithms ignore non-threats (ground clutter, vehicle components) while prioritizing pedestrians/workers or vehicles
Wireless and Display Options:
Some configurations feature wireless connectivity and touch-screen in-cab displays with colored graphics.
Measurable Benefits
Proven results that impact your bottom line and keep your team safe
Eliminate blind spots on large equipment where traditional mirrors or cameras are insufficient.
Prevent struck-by incidents, collisions, and fatalities in mining operations.
Outperforms camera-only systems in adverse conditions (dust, fog, rain, snow)
Comply with safety standards including MSHA guidelines
Consistent, active warnings in all weather and lighting conditions
Protect ground personnel near moving machinery
Reduce accidents in congested haul roads and loading areas
Minimal false alarms with intelligent filtering