Category-based food ordering processes

Würdemann, Helge A.; Aminzadeh, Vahid; Dai, Jian S.; Reed, J.N.; Purnell, GL

doi:10.1016/j.tifs.2010.10.003

Cited by 18 publications

(9 citation statements)

References 13 publications

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“…A food classification (Wurdemann et al, 2011) system will help to define the robot gripper. Fast grasping and releasing robotic P&P operations can affect fresh products, due to their susceptibility to damage producing a reduction in product quality.…”

Section: Discussionmentioning

confidence: 99%

Review. Technologies for robot grippers in pick and place operations for fresh fruits and vegetables

Blanes

Mellado

Ortíz

et al. 1970

Span. j. agric. res.

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Robotics has been introduced in industry to replace humans in arduous and repetitive tasks, to reduce labour costs and to ensure consistent quality control of the process. Nowadays robots are cheaper, can work in hostile and dirty environments and they are able to manipulate products at high speed. High speed and reliability and low robot gripper costs are necessary for a profitable pick and place (P&P) process. However, current grippers are not able to handle these products properly because they have uneven shapes, are flexible and irregular, have different textures and are very sensitive to being damaged. This review brings together the requirements and phases used in the process of manipulation, summarises and analyses of the existing, potential and emerging techniques and their possibilities for the manipulation of fresh horticultural products from a detailed study of their characteristics. It considers the difficulties and the lack of engineers to conceive of and implement solutions. Contact grippers with underactuated mechanism and suction cups could be a promising approach for the manipulation of fresh fruit and vegetables. Ongoing study is still necessary on the characteristics and handling requirements of fresh fruit and vegetables in order to design grippers which are suitable for correct manipulation, at high speed, in profitable P&P processes for industrial applications.Additional key words: food manipulation; horticulture grasp; postharvest science and technology; robotic product handling. ResumenRevisión. Tecnologías en garras robotizadas para operaciones de coger y dejar productos hortofrutícolas frescos La robótica ha sido introducida en la industria para reemplazar a los humanos en tareas arduas y repetitivas, reducir mano de obra y para asegurar una calidad constante de los procesos. Actualmente los robos son más baratos, capaces de manipular productos a alta velocidad y de trabajar en ambientes hostiles. Por tanto, los robots pueden trabajar en operaciones de "coger y dejar" (pick & place, P&P) con frutas y hortalizas frescas. Para un proceso rentable de P&P, son necesarias una alta velocidad y fiabilidad, así como un bajo coste de los sistemas de agarre. Este artículo de revisión recopila las necesidades y fases empleadas en el proceso de manipulación, reuniendo y analizando las técnicas existentes, potenciales y emergentes y sus posibilidades de aplicación para la manipulación de productos hortofrutícolas frescos a partir del estudio detallado de sus características. Considera las dificultades y la falta de ingenieros para concebir e implementar soluciones. Los autores proponen las alternativas más prometedoras para acometer este difícil problema y consideran la necesidad de seguir estudiando las características de frutas y vegetales frescos y las necesidades de manipulación. Las garras de contacto con mecanismos infra-actuados y ventosas o agarrar el producto sin contacto pueden ser las alternativas más prometedoras para manipular frutas y vegetales frescos. Es necesario continuar e...

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Section: Discussionmentioning

confidence: 99%

Review. Technologies for robot grippers in pick and place operations for fresh fruits and vegetables

Blanes

Mellado

Ortíz

et al. 1970

Span. j. agric. res.

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“…In this paper, we treat a mathematical optimization model in food production which has been introduced to represent an automated packaging operation preformed by actual packaging equipments, so-called automatic combination weighers and multi-head weighers (e.g., see Wurdemann et al, 2011). As depicted in Fig.…”

Section: Introductionmentioning

confidence: 99%

Heuristic algorithms with rounded weights for a combinatorial food packing problem

Karuno

Saito

2017

JAMDSM

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In this paper, a lexicographic bi-criteria food packing problem arising in actual packaging equipments is considered. Given a set I = {i | i = 1, 2, . . . , n} of current n items (for example, n green peppers) with their weights w i and priorities p i , the problem asks to find a subset I ′ (⊆ I) so that the total weight ∑ i∈I ′ w i is no less than a given positive t which denotes a target weight for each package, and it is minimized as the primary objective, and further the total priority ∑ i∈I ′ p i is maximized as the second objective. The problem has been known to be NP-hard, while it can be solved exactly in O(nt) time if all the input data are integral. In this paper, for a given real ε > 0, an O(n 2 /ε) time heuristic algorithm with rounded weights is proposed such that the heuristic total weight is at most (1 + ε) times the optimal total weight. Numerical experiments are also conducted to compare the proposed and known heuristic algorithms with rounded weights, and the results are reported.

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“…Solutions such as pick and place operations [8], multihead weighers, vibratory bowl feeder, etc. have already been applied to food industry [9]. Bin picking is a robot based singulation of objects that are randomly distributed in a three dimensional, limited space that has not yet been solved successfully [10].…”

Section: Introductionmentioning

confidence: 99%

Feature extraction of non-uniform food products using RGB and RGB-D data combined with shape models

Würdemann

Aminzadeh

Cui

et al. 2011

2011 IEEE International Conference on Robotics and Biomimetics

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Abstract-This research paper investigates a new 3D handling process in food industry: bin picking. Machines only function effectively when the input of product is physically well organised, well structured, and consistent. At many stages in a typical production line, foodstuffs are physically arranged as they move through a machine or equipment, however, this order is then lost again as products are ejected onto conveyors, bulked together into bins for transport, taken off-line for chilled storage. Bin picking is generally not solved for manufacturing parts. Unlike food ordering processes such as pick and place operations, vibratory feeders etc., this food handling operation has not been applied to food industry neither. A new approach is presented using the Microsoft Kinect TM sensor and Active Shape Models. By combining the new device that obtains an RGB and RGB-D image and the flexible shape model, it is possible to identify non-uniform food products that have a high variation in shape. The methodology of this system is presented. The experiments show the achievability of this new system.

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Category-based food ordering processes

Cited by 18 publications

References 13 publications

Review. Technologies for robot grippers in pick and place operations for fresh fruits and vegetables

Review. Technologies for robot grippers in pick and place operations for fresh fruits and vegetables

Heuristic algorithms with rounded weights for a combinatorial food packing problem

Feature extraction of non-uniform food products using RGB and RGB-D data combined with shape models

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