EP3953914B1 - Technologie de séparation de marchandises électroniques - Google Patents

Technologie de séparation de marchandises électroniques Download PDF

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Publication number
EP3953914B1
EP3953914B1 EP21717787.2A EP21717787A EP3953914B1 EP 3953914 B1 EP3953914 B1 EP 3953914B1 EP 21717787 A EP21717787 A EP 21717787A EP 3953914 B1 EP3953914 B1 EP 3953914B1
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EP
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Prior art keywords
goods
conveyor belt
projection
separation
separation method
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EP21717787.2A
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German (de)
English (en)
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EP3953914A1 (fr
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Martin Kavran
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Individual
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Individual
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
    • G07G1/00—Cash registers
    • G07G1/0018—Constructional details, e.g. of drawer, printing means, input means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
    • G07G1/00—Cash registers
    • G07G1/01—Details for indicating

Definitions

  • the disclosure relates to a product separation technology for separating products from different customers on a product conveyor belt at a checkout, e.g. in a supermarket.
  • the product separation technology comprises an electronic product separation device or a system of several product separation devices connected to one another, as well as a method for the optically perceptible separation of products on a product conveyor belt.
  • Cash register devices e.g. supermarket checkouts or similar devices for registering goods, usually include a goods conveyor belt on which customers can place their goods.
  • the goods conveyor belt conveys the goods towards the cashier or a registration station. While the cashier registers the goods at the end of the conveyor belt, the same or other customers can already collect further goods on the goods conveyor belt.
  • the goods of different customers are often separated from one another by physical (or mechanical) dividers so that the cashier can distinguish between the product groups of different customers.
  • Such dividers are usually elongated bars that can be placed across the goods conveyor belt. The customer must take a divider himself and place it at the desired location on the goods conveyor belt.
  • the dividers are often stored in an elongated (sliding) rail along the goods conveyor belt and pushed back into the rail by the cashier when the end of the conveyor area is reached.
  • the cashiers perform an unhealthy and frequently repeated movement that can pose health risks.
  • the one-sided physical strain caused by manual handling by the cashier can lead to permanent physical impairments.
  • mechanical product separators pose a potential hygiene problem, as germs can easily spread when they are constantly touched by many people. Cleaning the dividers and the rail is also time-consuming and impractical.
  • the display of advertising information on the mechanical dividers is inflexible.
  • the mechanical divider In order to adapt the advertising information, the mechanical divider must be mechanically adjusted.
  • US9595029B1 , US2019/188435A1 and DE102011000087A1 disclose systems and methods in which operating instructions, messages and placement instructions for individual goods of individual customers can be projected onto a goods conveyor belt.
  • DE102008049160B3 and DE10235865A1 reveal electronic product separators that can be displayed on or near a product conveyor belt after manual activation.
  • the present disclosure comprises several objects and aspects which, individually and in combination, can contribute to solving the stated problem.
  • the product separation technology includes, among other things, a product separation device, a product separation system with several product separation devices, and a product separation process.
  • An essential idea of the present invention is to project an information image onto the goods conveyor belt instead of a physical or mechanical goods separator.
  • the information image can be an optically perceptible image or writing.
  • Optical goods separation by projecting an information image has the advantage that no material object has to be moved.
  • the separation of goods can be automated with a projected information image. This relieves the workload of both customers and checkout staff.
  • the information image also prevents germs from being transmitted.
  • the information image can include dynamic and/or variable content.
  • static images can also be displayed.
  • different texts, images or moving images can be displayed.
  • the selection of information images can be made depending on certain factors or parameters. For example, different content can be displayed depending on the time of day or the adjacent goods.
  • the information images can also include advertising content that encourages customers to make further purchases. This can generate additional sales.
  • the projection of an information image onto the goods conveyor belt can primarily serve to (visually) separate product groups. Other effects can also be achieved, such as the transmission of advertising content and/or the display of requests to the customer.
  • the optical separation of product groups can make it easier for a cashier or automated checkout technology to recognize a product group and assign it to a specific customer.
  • a checkout device usually includes a goods conveyor belt.
  • the goods conveyor belt can be designed in particular as a circulating conveyor belt. However, other types of conveyor technology are also conceivable.
  • the term goods conveyor belt is therefore to be interpreted broadly.
  • the belt can consist of a deformable plastic, a grid or another material.
  • a cash register device can, for example, comprise a barcode scanner.
  • the cash register device can be designed to add up the prices of individual goods in a product group belonging to a customer.
  • a product group can be a set of one or more goods that a specific customer wants to buy (together).
  • the goods separating device is used to project an information image (or several information images) onto the (moving) goods conveyor belt.
  • the goods separation device comprises one or more electronic components, in particular for projecting an information image and for detecting goods separation points.
  • the goods separation device comprises in particular a detection device and a projection device.
  • a goods separation point can be located in the direction of movement of the goods conveyor belt between one item and another item, in particular between one group of goods and another group of goods.
  • the goods separation point forms a suitable location for separating groups of goods.
  • One or more goods separation points can be treated as an information object in the data processing of the goods separation device.
  • the goods separation point can in particular be linked to an open space on the goods conveyor belt.
  • a goods separation point is linked to a location and/or an arrangement of an information image to be projected.
  • the goods separating device can be installed on a cash register device or arranged on it.
  • the goods separating device is advantageously arranged at least partially above the goods conveyor belt.
  • the detection device is designed to detect one or more goods separation points on the goods conveyor belt.
  • a goods separation point is a suitable area on the goods conveyor belt at which two goods or groups of goods can be separated. Usually, different customers place their goods on the goods conveyor belt at some distance from the goods of other customers.
  • the detection device comprises suitable technical means for detecting such goods separation points, in particular open spaces or groups of goods.
  • the detection can be carried out both by detecting the goods and by recognizing open spaces.
  • the detection can in particular comprise sensory detection, image processing for recognizing objects and localizing objects.
  • the detection can also comprise only a part or a combination of the aforementioned steps.
  • the detection device is designed with suitable detection means according to the respective embodiment.
  • the detection device of the electronic goods separation device comprises one or more sensors, namely a distance sensor.
  • the at least one distance sensor is specifically a radar sensor or a LIDAR (light detection and ranging) sensor or an ultrasonic sensor.
  • the distance sensor is used in particular to generate a distance profile or a distance profile image, via which the distances between goods or groups of goods can be determined or recorded.
  • optical sensors e.g. cameras, can be used. Light barriers or other occupancy sensors can also be used along the goods conveyor belt.
  • the goods separating device comprises one or more electronic data processing units. These can be integrated into a detection device or a projection device or can be designed separately. In the case of a system with several goods separating devices, in particular for several checkout devices, a central data processing unit can also be used for several goods separating devices.
  • the projection device is designed to project one or more information images onto one or more projection surfaces at a recognized product separation point on the product conveyor belt.
  • the product separation device can also comprise several projection devices.
  • a projection surface is the area onto which an information image is projected.
  • the projection surface is preferably located at a goods separation point.
  • the projection surface can have a variable or static shape and/or arrangement.
  • the projection surface or the information image is preferably carried along with the goods separation point.
  • the projection surface can be dynamically adapted to environmental influences during operation, e.g. when the goods conveyor belt moves, goods are shifted and/or an end of the goods conveyor belt is reached.
  • the projection device preferably comprises one or more projection means.
  • the projection means are designed to generate and/or display an information image.
  • Suitable projection means can be projectors, lasers or other emitters.
  • the projection device can also comprise means for controlling the projection.
  • the projection device can in particular be designed to be controllable from the outside.
  • the projection device preferably projects onto one or more projection surfaces, in particular open areas, recognized or determined by a detection device.
  • the projection device can in particular comprise means for moving the projection of an information image in the environment, in particular on the goods conveyor belt.
  • the projection can be static and/or dynamic.
  • the projection device itself can be arranged to be movable and/or comprise suitable means for moving the projection.
  • the information image can include different types of information.
  • the term information image is to be interpreted broadly and includes in particular images, graphics, lettering, individual letters, patterns or geometric objects.
  • the information image can include images in color, black and white or grayscale.
  • the projection device can be adapted to the desired types of information images.
  • the projection device is preferably connected directly or indirectly to the detection device.
  • Data about detected product separation points can be exchanged between one or more detection devices and/or projection devices.
  • the data can also be transmitted or processed indirectly via a central control unit.
  • data exchange via Bluetooth or a wireless local area network (WLAN) is also possible.
  • the projection device can in particular generate one or more information images.
  • the arrangement and/or alignment of the projection device can be controllable, in particular by means of an actuator.
  • the image can be transferred directly or indirectly to the goods conveyor belt.
  • the goods separation device comprises suitable projection guide means, in particular a mirror device and/or a micromirror actuator and/or one or more actuators, such as a galvanometer scanner, for the arrangement and Control of the information images at the desired location, especially at one or more recognized product separation points.
  • an electronic goods separation device can have several detection devices and/or projection devices, especially two or more detection devices and/or projection devices arranged on a goods conveyor belt.
  • An electronic goods separation system can comprise a main control (e.g. comprising a control by a computer or computer software) and one or more electronic goods separation devices.
  • an electronic goods separation device can also comprise several individual modules of the detection device and/or the projection device, for example arranged above a cash register, which are each the recipient of a control command from the main control.
  • the number of detection devices and/or projection devices of an electronic goods separation device can be selected depending on the length of a checkout conveyor.
  • an (arbitrary) extension of an electronic goods separation device can be carried out by adding detection devices and/or projection devices, preferably designed as individual modules.
  • the product separation technology also includes a product separation process.
  • the product separation process is used to visually separate products on a product conveyor belt.
  • the goods separation process can be carried out continuously for one or more goods conveyor belts.
  • the individual steps of the goods separation process can be carried out individually or in groups repeatedly in real time, regardless of the order.
  • the product separation process is carried out in particular by technical means in an at least partially automated, preferably fully automated manner.
  • the product separation process is preferably carried out by a product separation device.
  • the method includes detecting an occupancy state on a goods conveyor belt with one or more detection devices.
  • the occupancy state can in particular include information about locations and/or areas of the goods conveyor belt where goods are located.
  • the occupancy state can in particular include location information.
  • the occupancy state can in particular be detected for one or more points in time or continuously.
  • the occupancy state can also include a distribution of goods or any objects on the goods conveyor belt.
  • the disclosure includes various types of detection of the occupancy status on the goods conveyor belt.
  • the detection of the occupancy status can, for example, include the detection of goods and/or open spaces on the goods conveyor belt.
  • the occupancy of the goods conveyor belt is detected using one or more detection means. For example, images from a camera can be processed, which can be arranged above the goods conveyor belt or elsewhere. Alternatively or additionally, one or more sensors can be integrated on or in the goods conveyor belt.
  • the occupancy can also be determined using a series of occupancy sensors, e.g. light barriers, along the goods conveyor belt.
  • the occupancy status can also be determined using one or more distance sensors, in particular a LIDAR sensor, a radar sensor or an ultrasonic sensor.
  • the occupancy status can be detected using one or more optical sensors and/or suitable image processing methods. Processing camera images in conjunction with object recognition methods is particularly advantageous.
  • the location information of the occupancy points can be determined in particular using previously known and/or measured sensor data (e.g. image information and camera parameters) or by additional localization methods.
  • the person skilled in the art is familiar with corresponding methods for determining occupancy distributions.
  • the method also includes a step of recognizing and determining related groups of goods on a goods conveyor belt, in particular by applying a clustering method.
  • the method further comprises the determination of one or more product separation points, in particular between identified related product groups.
  • the determination of the Goods separation points are preferably determined on the basis of an occupancy status and suitable decision rules. For example, the distance between two groups of goods can be compared with an (adjustable) minimum distance, for example a minimum distance of 20 to 30 cm.
  • a goods separation point can be determined at the points where a distance between two goods in the direction of movement of the goods conveyor belt is greater than a predetermined minimum distance. Other or additional factors such as the type, distribution and/or density of goods on the goods conveyor belt can also be taken into account when determining goods separation points.
  • An information image is projected onto a product separation point using one or more projection devices.
  • the information image is projected onto a projection surface that is arranged in a suitable manner on the product conveyor belt at a product separation point.
  • the projection surface can be moved in particular in the surrounding area.
  • the projection surface is preferably moved along with the product separation point.
  • the product separation point can change due to movement of the product conveyor belt or a change in the amount of goods loaded.
  • the projection surface is preferably adjusted accordingly.
  • the product separation method can comprise a step of determining a projection surface at a product separation point on the product conveyor belt and/or calculating the arrangement of a projection surface at a product separation point.
  • the goods separation point can be determined in such a way that, in relation to the direction of movement of the goods conveyor belt, it lies between a first goods group and a second goods group, or between a goods group and one end of the goods conveyor belt, or between the two ends of the goods conveyor belt.
  • the reaching of a good or goods group at a removal end of the goods conveyor belt can be detected.
  • data from a light barrier at the end of the goods conveyor belt can be processed.
  • the projection of an information image onto the goods conveyor belt can be terminated when a product or product group and/or a product separation point has a predetermined area on the goods conveyor belt.
  • the projection of an information image onto the goods conveyor belt is particularly preferably ended or changed when the last item is removed downstream of a goods separation point.
  • an empty goods conveyor belt is activated immediately during or after a certain short time, in particular after a few seconds, after goods have been placed on the goods conveyor belt as detected by the detection device.
  • the goods conveyor belt continues to run after goods have been removed from the goods conveyor belt by a cashier.
  • a goods conveyor belt can be deactivated immediately or after a predetermined time after the last item has been removed from it.
  • the goods separation method can include a step of recognizing one or more position markings on the goods conveyor belt.
  • the movement of the goods conveyor belt can be determined based on recognized position marks.
  • the goods separation method comprises a step of selecting an information image from a collection of information images based on predetermined and/or adjustable decision rules.
  • the information images can be selected in particular depending on the time of day and/or the adjacent goods.
  • the goods separation method can have a step of detecting obstacles, in particular obstacles formed by high or high-rising goods placed on the goods conveyor belt, which impair the projection of an information image onto a projection surface, and a step of controlling the projection device depending on a detected obstacle.
  • the projection device is controlled in such a way that a complete or correct projection of the information image onto the goods conveyor belt and not a partial projection onto the obstacle takes place. This enables an optimal and in particular complete projection of an information image onto a projection surface, in particular independently of the goods placed on the goods conveyor belt.
  • the projection of the information image is visually perceptible to both the customer and the cashier.
  • the system or process advantageously reacts to changes in the environment or actions of the customer.
  • the customer can create or remove goods separation points by adding or moving goods.
  • the goods separation technology recognizes the new occupancy of the goods conveyor belt and adjusts the projection of the information images accordingly.
  • the goods separation technology therefore represents a special type of user interaction.
  • the process or the goods separation device can advantageously be controlled by arranging the goods on the goods conveyor belt.
  • the projection can be automatically terminated and/or changed.
  • FIG. 1 shows a schematic representation of a cash register device 9.
  • the cash register device 9 comprises a goods conveyor belt 12 which conveys goods 11, 11' in the direction of the cash register.
  • the goods conveyor belt 12 can move at a goods conveyor belt speed V.
  • the electronic goods separation device 10 is preferably arranged above the goods conveyor belt 12.
  • the goods separation device 10 can be suspended from the ceiling or from a frame.
  • the arrangement of the goods separation device 10 is preferably predetermined and/or calibrated. In this way, the localization of the goods separation points and correct projection of the information images can be improved.
  • the goods separation device 10 comprises one or more projection devices 13 and one or more detection devices 15.
  • the devices can in particular be designed as integrated modules.
  • the detection device 15 comprises one or more sensors 19, in particular a LIDAR or a radar or an ultrasound sensor.
  • the sensor can detect the goods conveyor belt 12 in whole or in part.
  • an image of the surroundings e.g. a distance profile image, is generated.
  • the detection device 15 can be designed to generate an environmental image, in particular a distance profile, wherein at least a section of the goods conveyor belt 12 can be detected in the environmental image.
  • sensors in particular optical sensors such as a camera, can be arranged on the goods conveyor belt 12.
  • Other types of sensors can also be used.
  • the projection device 13 preferably comprises one or more projectors 20.
  • the projection device(s), in particular one or more projectors 20, are preferably designed to generate one or more information images 14, 14' and/or to project them onto one or more projection surfaces 18, 18'.
  • the projection device 13 can in particular comprise one or more projection guide means 21.
  • the projection guide means 21 are preferably designed to project the information image 14, 14' to the desired location on the goods conveyor belt 12.
  • the guidance or correct alignment of the projection can be carried out in different ways.
  • actuators can be used to control the projection device 13, in particular a projector 20 or a projection guide means 21 or a part thereof.
  • the adjustment may include an alignment and/or a movement.
  • the projection device 13 is designed to scale, focus and/or distort the information image 14, 14'.
  • the goods separation point 7 and thus preferably the projection surface 18
  • the angle and/or distance between the projection device 13 and the desired projection surface 18, 18' on the goods conveyor belt 12 can change (depending on the design of the goods separating device 10). This can lead to distortions of the information image 14, 14'. In order to maintain a favorable visual impression even during the movement of the goods conveyor belt 12, this distortion of the information image 14, 14' can be compensated.
  • the goods separating device 10 advantageously comprises one or more image adjustment devices.
  • the image adjustment device can in particular comprise adjustable lens arrangements and/or mirrors. With suitable actuators and adjustment means, a constant form of projection of the information image 14, 14' on the goods conveyor belt 12 can be achieved.
  • the arrangement of the projection surfaces 18, 18' of the information images 14, 14' on the goods conveyor belt 12 is controllable.
  • the arrangement can in particular be regulated to a specific desired arrangement.
  • the goods separating device 10, in particular the projection device 13 or a control device can comprise a suitable controller.
  • FIG. 2 shows a schematic representation of a goods conveyor belt 12 with goods 11, 11', 11".
  • the occupancy state on the goods conveyor belt 12 is detected by a detection device 15. Both open spaces and the goods 11, 11', 11" themselves can be detected in order to determine the occupancy state.
  • the distance X between goods 11 or groups of goods WG, WG' is advantageously determined.
  • the distance can be determined using a predetermined calculation method from sensor data, in particular a distance profile image generated by LIDAR, radar or ultrasound sensors.
  • the distance between goods 11, 11', 11" can also be determined by means of light barriers arranged at regular intervals along the goods conveyor belt 12 or by a camera recording. Other methods for this are known to the person skilled in the art.
  • a goods separation point 7, 7', 7" is determined by comparing determined distances X with a required minimum distance M. If the distance is sufficiently large, the point is determined as goods separation point 7'.
  • the movement of the goods conveyor belt 12 can advantageously be used to control the goods separating device 10, in particular the projections.
  • the goods separating device 10 can in particular be designed to obtain information about the movement of the goods conveyor belt 12 via a suitable interface, for example from a cash register device 9.
  • the goods separation technology can also be designed to detect position markings PM, PM' on a goods conveyor belt 12.
  • the position markings PM, PM' can be present anyway or can be applied to a goods conveyor belt 12 specifically for this purpose.
  • the movement of the position markings PM, PM' in particular allows the movement of the goods conveyor belt 12 to be determined in a technically efficient and safe manner.
  • Figure 3 shows schematically a possible embodiment of a projection device 13.
  • the projection device 13 can be controlled via one or more actuators 32, in particular moved and/or aligned.
  • an entire projection device 13 and/or a specific part of a projection device 13, for example a projector 20 or a projection guide means 21, can be controlled.
  • Figure 4 shows schematically a further embodiment of a projection device 13 with projection guide means 21, for example a mirror device 33.
  • the projection guide means 21 can comprise suitable actuators for the targeted alignment or shaping of the projection.
  • the projection device 13 comprises one or more micromirror actuators.
  • surface light modulators can be used.
  • one or more goods separation points 7 are updated on the basis of data about the movement of the goods conveyor belt 12.
  • the goods separation points 7 are preferably determined in such a way that they are located with respect to the direction of movement of the goods conveyor belt 12 between a first goods 11 and a second product 11', or between a product 11, 11' and one end E, E' of the product conveyor belt 12, or between the two ends E and E' of the product conveyor belt 12.
  • a goods separation point 7 is determined at the points at which a distance X, X' between two goods 11, 11' in the direction of movement of the goods conveyor belt 12 is greater than a predetermined minimum distance M.
  • the reaching of a product 11, 11' at a removal end EE of the product conveyor belt 12 is detected.
  • the projection of an information image 14, 14' onto the goods conveyor belt 12 is terminated when a product 11 and/or a product separation point 7 reaches a predetermined area on the goods conveyor belt 12.
  • the projection of an information image 14, 14' onto the goods conveyor belt 12 is terminated or changed when the last product 11 downstream of a product separation point 7 is removed.
  • one or more position markings PM, PM' located on the goods conveyor belt 12 can be detected.
  • the movement of the goods conveyor belt 12 is preferably determined based on detected position marks PM, PM'.
  • an information image 14, 14' is selected from a collection of information images based on predetermined and/or adjustable decision rules, in particular depending on the time of day and/or the adjacent goods 11, 11'.
  • obstacles can be detected, whereby the obstacle can be formed in particular by goods 11, 11' placed on the goods conveyor belt 12, which impair the projection of the information image 14, 14' onto a projection surface 18, and the projection device 13 can be controlled depending on the detected obstacle.
  • the control of the projection device 13 is carried out in particular in such a way that there is no impairment of the information image 14, 14' to be projected onto the goods conveyor belt 12. For example, a partial projection onto the obstacle and thus only an incomplete projection onto the goods conveyor belt 12 occurs.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Control Of Conveyors (AREA)

Claims (14)

  1. Procédé de séparation de marchandises pour la séparation optiquement perceptible de marchandises (11, 11') sur une bande de transport de marchandises (12) d'un dispositif de caisse (9), comprenant les étapes suivantes :
    - l'acquisition d'un état d'occupation sur la bande de transport de marchandises (12) avec un ou plusieurs dispositifs de détection (15) d'un dispositif de séparation de marchandises électronique (10) comprenant un ou plusieurs capteurs (19) ;
    - la détermination de groupes de marchandises (WG, WG') continus sur la bande de transport de marchandises (12) sur la base de l'état d'occupation, en particulier par application d'un procédé de regroupement ;
    - la détermination d'un ou plusieurs points de séparation de marchandises (7) entre les groupes de marchandises (WG, WG') continus ;
    - la projection d'une image d'information (14, 14') sur une surface de projection (18) à un point de séparation de marchandises (7) sur la bande de transport de marchandises (12) au moyen d'un ou plusieurs dispositifs de projection (13) du dispositif de séparation de marchandises électronique (10).
  2. Procédé de séparation de marchandises selon la revendication 1, caractérisé en ce que le dispositif de détection (15) comprend un capteur lidar et/ou un capteur radar et/ou un capteur ultrason.
  3. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de détection (15) produit un profil de distance ou une image de profil de distance.
  4. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de projection (13) met à l'échelle, focalise et/ou distord la projection de l'image d'information (14, 14') sur la bande de transport de marchandises (12).
  5. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de projection (13) comprend un ou plusieurs projecteurs (20) pour la production de la projection de l'image d'information (14, 14') et/ou un ou plusieurs moyens de guidage de projection (21), en particulier un dispositif de miroir (33) et/ou un actionneur de micro-miroir et/ou des actionneurs pour la disposition et commande de l'image d'information (14, 14') et/ou de la forme de celle-ci.
  6. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de projection (13) comprend un moyen de guidage de projection (21) avec un dispositif d'adaptation d'image, par lequel la forme et/ou taille de la projection de l'image d'information (14, 14') sur la surface de projection (18) est adaptée, en particulier mise à l'échelle, focalisée et/ou distordue.
  7. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de détection (15) comprend un ou plusieurs capteurs optiques, en particulier une caméra, ou une barrière lumineuse.
  8. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, caractérisé par un dispositif de commande électronique (27), qui reçoit des informations sur l'occupation de la bande de transport de marchandises (12) et produit des signaux de commande pour le au moins un dispositif de projection (13).
  9. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, dans lequel le dispositif de séparation de marchandises (10) échange des données avec le dispositif de caisse (9), en particulier des données sur le mouvement de la bande de transport de marchandises (12) .
  10. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, comprenant une mémoire de données pour une collecte d'images d'information (14, 14'), qui peuvent être projetées sur la bande de transport de marchandises (12).
  11. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, comprenant l'étape suivante :
    - l'actualisation d'un ou plusieurs points de séparation de marchandises (7), en particulier sur la base de données sur le mouvement de la bande de transport de marchandises (12) et/ou sur la base d'une modification de l'occupation de la bande de transport de marchandises (12) avec des marchandises.
  12. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, comprenant l'étape suivante :
    - la sélection d'une image d'information (14, 14') à partir d'une collecte d'images d'information à l'aide de règles de décision prédéfinies et/ou réglables, en particulier en fonction de l'heure et/ou des marchandises (11, 11') adjacentes.
  13. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, comprenant les étapes suivantes :
    - la reconnaissance d'obstacles, en particulier d'obstacles formés par des marchandises (11, 11') posées sur la bande de transport de marchandises (12), qui gênent la projection de l'image d'information (14, 14') sur une surface de projection (18) ;
    - la commande du dispositif de projection (13) en fonction d'un obstacle reconnu.
  14. Procédé de séparation de marchandises selon l'une quelconque des revendications précédentes, caractérisé par la comparaison de la distance (X) entre deux groupes de marchandises (WG, WG') avec une distance minimale (M), en particulier une distance minimale (M) de 20 à 30 cm, et la détermination d'un point de séparation de marchandises (7) entre deux groupes de marchandises (WG, WG') aux points où une distance (X) est supérieure à la distance minimale (M),
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