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Concise description

SICK laser measurement systems control parcel robots and guarantee more ergonomics and efficiency. Reliable optical sensors monitor the handling area.

Task

In the age of automation, package and express shipping service providers look for new ways to develop more efficient and ergonomic handling processes in package sorting systems. In a combined project with Deutsche Post DHL, the Bremer Institut für Produktion und Logistik GmbH (BIBA) (a scientific engineering research institute focusing on production and logistics systems), the University of Bremen, and the Astrium Space Transportation GmbH, a solution was developed based on one robot. In order to ensure that packages are efficiently and exactly gripped from out of the container or trailer, it was necessary to find a solution that can reliably detect the position of each package - regardless of size, alignment or surface. The measuring coordinates should be used for controlling the approach of the robot. In addition to that, they looked for possible solutions for the non-contact monitoring of the area in which the robot's movements pose a danger.

Implementation

SICK laser measurement systems detect the position of packages in the container for the robot control system. Safety sensors are used for area monitoring.

The first package robot was installed in the logistics center in Essen of the DHL Solutions Fashion GmbH. A laser measurement system (LMS200) is used to detect the packages in the container. Here, the device scans the inside of the container, detects the edges of the packet using a special algorithm and can thereby detect their length, width and position. Neither the surface quality of the package nor the ambient light conditions, e.g day or night, have an influence on the measuring precision. The control system of the robot uses the object and position data detected by the laser measurement system to calculate the optimum approach coordinates with the highest level of precision. The robot grips the packages in the container, lifts them up and places them down onto a conveyor belt that transports the packages to the sorting system. The robot's surroundings can be monitored with safety laser scanners (S3000) or safety light grids (C4000 or miniTwin4).

Customer benefits

  • A reliable sensor solution that is easy-to-integrate
  • Detection of diverse packages
  • Precise measuring technology ensures precise gripping
  • Laser measurement system and safety technology from a single source

    The easy-to-integrate laser measurement system makes it possible to connect up the control system fast. Its highly robust design ensures high availability and efficiency of the package robot. The precise measuring technology enables precise package gripping - good for a better and continuous throughput when unloading. Safeguarding with opto-electronic safety sensors guarantees reliable accident prevention without impairing ergonomic operation, for instance, for maintenance work. Procuring laser measuring equipment and safety technology from a single source ensure that sensor systems are used that are compatible with one another.

  • A reliable sensor solution that is easy-to-integrate
  • Detection of diverse packages
  • Precise measuring technology ensures precise gripping
  • Laser measurement system and safety technology from a single source
  • Application
    Industry: Courier Express Postal & Cargo, Warehouse & Distribution
    Challenge: Automated handling
    Product group: Laser scanners, Safety laser scanners, Safety light curtains
    Reference customer: Deutsche Post DHL
     

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