Optical sorter

Optical grape sorters use vision and artificial intelligence technologies to sort the grapes.
The process begins by draining and distributing the grapes in a single layer on a vibrating table, followed by their stabilisation on a conveyor belt.
Controlled lighting allows precise analysis of the images captured by a camera, and unwanted elements are then ejected by a pneumatic system.
An interface allows the user to define the sorting criteria, optimising the quality and performance of the sorting.

General operation of optical sorters

Optical grape sorters are automated systems that use vision technology to analyse and sort grapes. Their operation is based on several key stages:

Draining and monolayer distribution

Before sorting, the grapes are drained to remove any free juice. The grapes are then distributed in a homogeneous monolayer on a vibrating table. This monolayer distribution is crucial for effective optical analysis, as it allows each object to be sorted to be clearly distinguished.
Table vibrante d'egouttage et d'etalement
Picots de la bande transporteuse

Object stabilisation

For accurate analysis, it is essential that the objects remain stable during transport. A conveyor belt fitted with spikes ensures this stabilisation, even at high speeds, allowing the grapes to follow a stable trajectory under the camera.

Controlled lighting

Lighting plays an essential role in optical analysis. Continuous, focused lighting, generally provided by LEDs or electroluminescent sources, ensures clear viewing without shadows. This consistency and focus of light is necessary for accurate image capture.

Image analysis

A colour line-scan camera captures images of the illuminated objects. These images are then processed by a computer that analyses the coloured pixels to identify healthy berries and eliminate undesirable elements. This process is adapted to meet the high speeds required for optical sorting.
Trieur optique éclairage

Human/machine interface

The user can interact with the system via a dedicated interface to define the sorting criteria. This interface allows parameters to be set to sort berries according to specific criteria of maturity, integrity or absence of foreign bodies.
Trieur optique image
Tri dechets baies

Ejection system

Once the analysis has been carried out, the system controls the ejection of undesirable elements using pneumatic solenoid valves or ejection nozzles. These devices are distributed across the width of the conveyor and operate at high frequency to meet throughput and precision requirements.

Optimisation and performance of optical sorting

To guarantee optimum performance, the harvest must be prepared as soon as it reaches the sorting line. Each stage, from draining to ejection, must be precisely controlled to ensure the quality of the sorting.
The stability of the objects and the quality of the lighting are essential for accurate optical analysis. Artificial intelligence also plays a key role, analysing images in real time and adjusting sorting criteria according to user-defined specifications.

Optical grape sorters represent a major technological advance in viticulture, offering automated and precise solutions for improving the quality of grapes destined for winemaking. By combining vision technologies, artificial intelligence and advanced ejection systems, this equipment ensures efficient sorting, meeting the quality and performance requirements of modern winemakers.

Contact our expert

Traitement des données à caractère personnel
Les informations personnelles que vous nous communiquez sont strictement confidentielles et destinées au traitement de vos demandes par nos services. Elles ne sont transmises à aucun tiers ni à titre onéreux ni à titre gratuit. Conformément à la loi n° 78-17 du 6 janvier 1978 modifiée en 2004 et au Règlement Général sur la Protection des données (RGPD) 2016/679 du Parlement européen et du Conseil du 27 avril 2016, vous bénéficiez d'un droit d'accès, de rectification ou de suppression des informations qui vous concernent, que vous pouvez exercer selon les modalités définies dans la rubrique données personnelles
 
Newsletter
Subscription
 
* Mandatory fields