Load Collision Prevention System (LCPS)

Improve safety while maximizing productivity

Safety in stacking is a key requirement for reliable operations. The SIMOCRANE Load Collision Prevention System contributes to that safe distances are monitored in real time to avoid collisions and therefore reduce the risk of damage and consequently repair costs. Siemens‘ LCPS reduces the risk of collisions by offering driver assistance especially regarding blind spots of manually operated cranes and supporting automated moves on automated cranes. The system enhances the safety, contributes for route optimization thus enabling an efficient workflow.

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State of the art measurement system

Safe and efficient stacking operations

Productivity and availability

The system monitors the position of the spreader and the load. When an obstacle is detected, a virtual speed-dependent safety box dynamically restricts motions according to the defined safety margins. In order to reduce the risk of colliding towards the stack, the sway prediction is taken into account.

 

With this smart pendulum calculation, LCPS considers the residual sway and the stack gradient to define the safety margins around the load. This unique safety feature plays a key role in the output supporting the achievement of new standards in efficiency, productivity and availability of the crane.

 

Dynamically adjusted safety distances in X, Y and Z direction are monitored and integrated into the drive and control system in a safe way. The system utilizes the SIMATIC WinAC RTX platform which permits implementation of safety systems on the latest Siemens Industrial PC. 

Find out more about Siemens’ LCPS in our brochure

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Safe, efficient and productive

Accurate position measurements

In order to support a constant workflow, the system calculates the position and speed of trolley, gantry and spreader. LCPS detects the position and travelling speed of the trolley independently. All distances between important reference points are calculated, synchronized and verified via two different measuring systems. Besides identifying the position, LCPS also creates a stack area profile so that a safe height is calculated. The system safeguards that all measurements are done timely to allow collision avoiding measures.

Additional safety measure

In case a deviation from the expected status is detected, LCPS adjusts the control accordingly. Based on the safe margins, LCPS defines two safe distance thresholds to first slow down and secondly stop at a later stage.

 

An additional safety measure is activated if failures are detected. In that case, a safety stop will be initiated directly to the drive. The system automatically responds depending on the speed and position of the trolley, gantry and hoist. Given the load sway due to movements, sufficient margin in slowdown will be taken into account to act safely under different circumstances.

Efficient workflow on every cycle

During trolley movement, LCPS detects the stacking profile and stores this in the system. The scanned area is then free to be used for running optimal paths in the successive cycles.

 

After a certain amount of cycles, the total stack profile is scanned allowing optimum path in the total area. When travelling over the stack, the profile is verified and updated to increase the safety and the efficient workflow in container handling. LCPS continuously updates the stack-profile enabling collision prevention to be executed.

Benefits of movements monitoring

Safety and productivity     

  • Elimination of downtime
  • Reduce the risk of colliding loads in a stack, reducing damage and repair costs.

Easy to integrate

  • Suitable for greenfield and brownfield projects
  • No pre-scan required, operation can continue directly with the next job.

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Committed partner of the crane industry

The world’s safest, most productive, energy-efficient and reliable cranes are driven, controlled and automated by Siemens. Our comprehensive and innovative portfolio, our decades of experience and industry-specific applications have made us a preferred partner for crane operators all over the world.

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