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1.
Analysing picking errors in vision picking systems
Ela Vidovič, Brigita Gajšek, 2020, izvirni znanstveni članek

Opis: Vision picking empowers users with access to real-time digital order information, while freeing them from handheld radio frequency devices. The smart glasses, as an example of vision picking enabler, provide visual and voice cues to guide order pickers. The glasses mostly also have installed navigation features that can sense the order picker's position in the warehouse. This paper explores picking errors in vision systems with literature review and experimental work in laboratory environment. The results show the effectiveness of applying vision picking systems for the purposes of active error prevention, when they are compared to established methods, such as paper-picking and using cart mounted displays. A serious competitor to vision picking systems are pick-to-light systems. The strong advantage of vision picking system is that most of the errors are detected early in the process and not at the customer's site. The cost of fixing the error is thus minimal. Most errors consequently directly influence order picker's productivity in negative sense. Nonetheless, the distinctive feature of the system is extremely efficient error detection.
Ključne besede: order picking, storage operations, warehousing, smart glasses, error prevention, inventory management, intralogistics
Objavljeno v DKUM: 22.08.2024; Ogledov: 83; Prenosov: 4
.pdf Celotno besedilo (672,66 KB)
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2.
Comparison of lowest-slot and nearest-stack heuristics for storage assignment of steel bar sets
Jakob Marolt, Tone Lerher, 2018, izvirni znanstveni članek

Opis: Our research objective is to lower intralogistics costs by minimizing the number of shuffling operations in a steel plant company commercial warehouse. The process of dispatching products consists of retrieving set of steel bar (SSB) from a floor stored stack or a special stacking frame by an overhead crane. To retrieve a targeted merchandise all SSB above targeted must be reshuffled. Proper assignment of storage locations is a key logistics problem for efficient order picking. We are comparing two heuristics, that do not require information of dispatching sequence of any stored products. We simulated the problem at hand with both methods. Our objective is to count the number of reshuffles using each heuristic on randomly generated examples and decide which is better in the long run. Our problem has similarities with storage assignment of steel plates or steel coils for minimization of reshuffling operations. The problem is also comparable to storage assignment of containers in a container yard. In our case we are dealing with a special stacking configuration of products, that demands different approach. We want to demonstrate which heuristic should be used in companies that lack necessary storage information infrastructure.
Ključne besede: order picking, storage operations, warehousing, logistics
Objavljeno v DKUM: 22.08.2024; Ogledov: 62; Prenosov: 9
.pdf Celotno besedilo (922,58 KB)
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