A comparison of order picking assisted by head-up display (HUD), cart-mounted display (CMD), light, and paper pick list

Abstract

Wearable and contextually aware technologies have great applicability in task guidance systems. Order picking is the task of collecting items from inventory in a warehouse and sorting them for distribution; this process accounts for about 60% of the total operational costs of these warehouses. Current practice in industry includes paper pick lists and pick-bylight systems. We evaluated order picking assisted by four approaches: head-up display (HUD); cart-mounted display (CMD); pick-by-light; and paper pick list. We report accuracy, error types, task time, subjective task load and user preferences for all four approaches. The findings suggest that pick-by-HUD and pick-by-CMD are superior on all metrics to the current practices of pick-by-paper and pick-by-light.

Order Picking with Head-Up Displays

“…Our test results show that using pick-by-HUD can virtually eliminate errors and improve speed by approximately 30 percent over paper lists ( Figure 5). 8 In addition, the average pick time with the HUD method is a statistically significant speed improvement over pick-by-light. The pick errors with pick-by-HUD, which were fewer than with any other method, also tend to be less severe.…”

“…Using the MicroOptical SV-3 HUD resulted in significantly fewer errors than pick-by-light (p = 0.007) and paper (p = 0.018). 8 Figure 5c shows the errors for all four methods divided by specific error type.…”

El voice picking: una organización del trabajo que atenta contra la subjetividad del trabajador. El caso de una cadena de comercio de la alimentación al detal

“…Los operadores usan una pantalla montada en la cabeza (hmd) o gafas tecnológicamente modificadas que contienen una lente compatible con realidad aumentada y se superponen al mundo real con objetos virtuales (Haase & Beimborn, 2017;Guo et al, 2014).…”

In-Situ Instructions Exceed Side-by-Side Instructions in Augmented Reality Assisted Assembly

“…Reif et al [20] compare a similar approach using a tunnel of circles as well as a contour highlight at the drawer to classic paper-based guidance. Another evaluation was conducted by Guo et al [9]: They compare HUD information on AR glasses and a display mounted on a cart to classic picking lights (small lamps at each drawer indicating the relevant drawers to pick from). The results of these evaluations suggest that AR-based picking guidance outperforms classic techniques.…”