PECM Issue 70 2024 | Page 96

Solving the sizeable problem of non-machinable items

MACHINING & MACHINERY COMPUTER VISION

PRIME VISION
Solving the sizeable problem of non-machinable items
Non-machinable or non-conveyable items are the bane of any postal or e-commerce sorting operation . Whether large , heavy , fragile , unstable or oddly shaped , these goods can ’ t be automatically sorted and instead require inefficient , manual processing . However , with new automation technologies like computer vision and robots , businesses have an opportunity to change this . In the near future , every item could be machinable .
Lars Pruijn , Innovation Director , and Mart Ruijs , Product Manager at Prime Vision explore how computer vision and robotics could make nonmachinable items a thing of the past .
Items that don ’ t fit in
Non-machinable items , often called ‘ uglies ’ because of the difficulties they pose , can take many different forms – from big TVs , brooms and car tyres to large pots of paint . What they all have in common is that , due to their characteristics , they can ’ t be accommodated in a standard , automated sorting system . As postal services and e-commerce companies invest heavily in fixed infrastructure that is optimised for smaller items , non-machinables present a sizeable problem . They must be identified , separated , and accommodated in a different process .
Traditionally , this has been accomplished manually . Warehouse staff identify non-machinables by eye , then move them by hand to a separate chute or destination . This is time consuming and costly , placing unnecessary strain on workers .
Furthermore , a manual approach isn ’ t fact based , raising the possibility that a non-machinable item might slip through .
The ability of computer vision to accurately identify problematic goods and the inherent flexibility of robots will soon ensure that every item is machinable
Improving the identification and transport of these goods has long been an uphill battle , but computer vision and robotics can provide a solution .
Eyes on the oversized prize
Computer vision technology offers the capability to quickly and accurately identify non-machinable items at the beginning of the sorting process . This eliminates any manual intervention , greatly improving efficiency .
Correct identification of a wide range of items is possible thanks to machine learning . By training artificial intelligence ( AI ) models using examples from a business ’ s real-world operations , a computer vision system can not only recognise objects based on dimensions and weight , but other characteristics such as shape , stability , packaging type and more . The more items the system is exposed to , the better it becomes at recognition .
As well as relying on hard data to correctly determine nonmachinable items , the system can assist in automatically pre-sorting them to an appropriate chute , conveyor , area or robot – so no unsuitable packages slip through . Furthermore , computer vision seamlessly integrates within the brownfield environment of existing processes too , relying on camera hardware and standalone software .
Ultimately , computer vision speeds up the processing of nonmachinable items . Effective presorting means manual intervention is not required , with items that were initially unsuitable for automation now accounted for in a fast , costeffective process .
Making moves with nonmachinable items
With pre-sorting complete , the next question is how to efficiently move non-machinable items to a desired destination ? A manual approach is slow and places strain on employees , and by their very nature , these items are unsuitable for fixed conveyor systems .
Robots are famed for enabling incredibly flexible sorting operations , but their versatility in terms of payload provides a unique opportunity to automate the handling and transport of traditionally non-machinable items . The latest robots are highly autonomous , using a combination of computer vision and ranging to safely navigate a pre-mapped area , picking up and dropping off items to any destination within it . Able to handle anything from a single letter to a 2-metre square parcel weighing well over 30 kg , robots can be equipped to move a wide range of items that would be totally unsuitable for a conveyor system .
With customised systems for gentle loading , transport and unloading ( depending on what is being
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