order picking


to 100 metres via poe ("power over ethernet"). the selected Ui-5240cp-c-HQ rev. 2 is a


particularly powerful industrial camera with the e2v 1.3 megapixel cmoS sensor. this is one of the most sensitive sensors in the idS product portfolio and apart from the here used colour version it is available in monochrome and as nir version. Besides its outstanding sensitivity to light, the camera also has a range of other distinctive features which makes the sensor extremely flexible if requirements or ambient conditions change. the compact and robust aluminum housing of the


ensenso n35 3d camera with lockable gpio connector for trigger and flash and gige connector, has two monochrome cmoS sensors (global Shutter, 1280 x 1024 pixels) and a projector. via power over ethernet a data transfer and power supply are possible with long cable lengths. due to the integrated Flexview technology the n35 models are particularly suitable for 3d acquisition of still objects and for working distances up to 3,000 mm. the ensenso X36 3d camera system consists of a


projector unit, two gige ueye cameras either with 1.3 mp or 5 mp sensors (cmoS, monochrome), mounting brackets and adjustment angles, three lenses as well as sync. and patch cables to connect the camera with the projector unit. the Flexview technology ensures a better spatial resolution as well as a very high robustness of the system for dark or reflecting surfaces. "Fizyr normally uses one camera per system,


usually ueye cameras in combination with ensenso n35 and X36, but there are no limitations. the most common use case for Fizyr so far is one ueye and one ensenso per system," underlines Herbert ten Have, ceo at Fizyr. the different ensenso models that can be used


have one thing in common: the dispose of a light- intensive projector produces a high-contrast texture on the object surface by using a pattern mask, even under difficult light conditions. the projected texture supplements the weak or non-existent object surface structure. therefore this principle is also called “projected texture Stereo vision”. the result is a more detailed disparity map and a more complete and homogeneous depth information of the scene. their extensive features qualify both ensenso 3d


camera models for the wide range of demanding applications in the supply chain and logistics industry, such as 3d object recognition, classification and localisation (e.g. quality assurance, commissioning), logistics automation (e.g. (de-)palletising), robot applications (e.g. bin picking), capture of objects up to 8m³, (e.g. pallets) or automatic storage systems. "Fizyr has integrated the ensenso Sdk in its


software using a modern and fast wrapper," Herbert ten Have explains. "a great advantage is the 2d/3d combination, which allows the image from the 2d camera to be placed over the 3d point cloud as an overlay". this provides a more vivid impression of the scene. on the other hand, the camera image can be optimally adjusted to the robot coordinate system by means of "hand-eye calibration" in order to ensure a target-oriented gripping.


iDs imaging Development systems www.ids-imaging.com


Saving time and energy in order picking t


he productivity of order picking at ground level depends on the operator’s speed and precision. Short walking


and driving distances save time and effort increasing the efficiency of the process. Logistics service providers and retail chains can now exploit this optimisation potential using the Linde n20 Sa and n20 c Sa semi- automated order pickers, together with the new semi-automated equipment option. this option offers two drive modes in which the truck either automatically follows the operator or drives ahead. as a result, employees are relieved from non-value-added activities and order picking performance can be boosted by up to 20 per cent. no matter what the industry, order picking is


labour-intensive, requiring stamina and alertness from warehouse staff. a substantial part of the process consists of the employee walking to the pallet and back to the order picker. this is a time and energy-consuming activity but, unlike actually picking the items from the pallet and placing them on the load carrier, it does not create any added value. “even a mere few seconds added to each handling operation adds up to a lot of time lost over the course of the working day, and just a few steps, repeated over and over again, add to an operator’s fatigue sapping energy that would be better directed at completing the picking process without errors,” argues philipp Stephan, product manager automation & intralogistics Solutions at Linde material Handling (mH). at the same time, the demands on


warehouse staff continue to grow: pick rates are expected to increase, error rates must be reduced, and employee health problems prevented. as a result, the picking process offers great potential for increasing the overall efficiency of warehouse logistics – a potential that can now be tapped using the Sa option available for Linde low level order pickers with up to 2.5 tons load capacity. this is because both semi-automatic drive modes significantly shorten travel and walking distances during an order picking shift. additionally, there is no longer the need to constantly climb on and off the truck, which reduces an operator’s physical effort and the risk of accidents. this has positive effects on both picking accuracy and productivity in the warehouse.


Drive aHeaD anD waLk aLongsiDe the most common order picking process in high bay warehouses in the Uk is where the operator picks from both sides as the order picker is moved down the aisle. this can be easily done using the stop-and-go function. Here, the vehicle moves along in the middle of the aisle directed forward by the operator using the remote control. at the same time, the operator walks back and


forth behind the truck picking goods and placing them on the pallets or roll cages on the forks. the advantage here is that there is no need for the operator to walk back to the truck or repeatedly climb on and off it to move it a relatively short distance for the next pick. another way of organising the picking is to pick


from one side of the aisle, where the pickers walk along the aisle picking loads from the pallets and placing them on the truck which is keeping up with them as they move forward. this activity is fully supported by the truck’s semi-automatic “follow-me” function. if the operator stops, the vehicle stops, allowing the goods to be picked directly from the racking onto the pallet. if the operator continues to walk, the truck also continues to move forward. in this way, the employee moves along the aisle completing the picks without constantly having to walk to the driver’s workstation and back again. Forward motion of the truck is triggered by the operator passing a certain point on the vehicle, the so- called “virtual wall”. Both functions are based on ultra-wideband


radio technology and can be set with centimeter precision. at the end of an aisle, the truck stops automatically to avoid collisions with other vehicles. By getting onto the truck, the employee ends the semi-automatic mode and can then steer the truck manually to the next aisle.


safety on boarD Since one of the biggest concerns about automated vehicles is the issue of safety, Linde material Handling has equipped its n20 Sa and n20 c Sa order pickers with a high- performance safety scanner that is able to detect people and other industrial trucks in the surrounding area to prevent collisions and accidents. mounted low down on the chassis, the scanner can also spot unexpected obstacles on the floor to avoid damage caused, for instance, by running over a piece of broken pallet. to avoid damage to racking and give operators enough leeway to do their job, the vehicle maintains a minimum distance of 50cm from the racks but can also be positioned at a greater distance, if required.


Linde Material Handling www.linde-mh.com


Factory&HandLingSoLUtionS | jULy/aUgUSt 2021 49


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