The new CARS system combines ultrasonic and LiDAR sensors to detect overhead obstacles and automatically restrict machine movements when potential collision risks are identified.
Overhead obstacles remain a significant safety concern when operating scissor lifts in confined spaces or around building structures. Sinoboom has introduced a new Collision Avoidance Radar System (CARS) designed to detect potential hazards above the platform and intervene before contact occurs.
How the collision avoidance system works
CARS uses a compact sensor unit mounted on the platform railing and connected to the machine’s control system. It monitors the space above the operator and activates warnings according to the distance from an obstacle.
The system operates through two warning stages. When an obstacle is detected between one and two metres overhead, visual and audible alarms are activated. On machines equipped with newer Sinoboom control systems, lifting and driving speeds are also automatically reduced. If an obstacle is detected within one metre, the system enters a second stage, restricting lifting and driving movements while maintaining the alarms.
The combination of an ultrasonic sensor with a ±20-degree detection angle and a LiDAR sensor covering distances from zero to three metres reduces short-range measurement errors by 50%.
Compatibility with existing equipment
One aspect of the system is its compatibility with both older and newer Sinoboom scissor lift control systems. While the response during the first warning stage differs between generations, both configurations provide obstacle detection and automatic movement restrictions.
CARS also includes an adjustable calibration function that allows warning distances to be adapted to the operator’s height. The primary alarm distance can be set between 0.6 and 2.5 metres, while a temporary override function enables controlled movement when required. Protection is restored when the override button is released.
A focus on active operator protection
The introduction of CARS adds to the range of active safety technologies being developed for mobile elevating work platforms. Unlike physical protection devices, sensor-based systems can detect approaching obstacles and respond through the machine’s controls without adding a mechanical barrier above the operator.
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