The invention relates to a passageway system with at least one foot element, with at least one blocking element which is mounted on the foot element and which is movable between at least one blocking position intended for at least partially blocking a passage and at least one release position releasing the passage, with a drive unit serving to move the at least one blocking element, with a control of the drive unit, with a detection unit intended for the identifying detection of goods, and with interfaces to a data processing unit and optionally further components.
Passageway systems with a foot element and a movable blocking element are described, among others, in DE 25 48 069 A1, DE 40 37 796 A1, and DE 201 11 709 U1, EP 2 184 435 A1, and EP 2 717 235 A1. It is known to arrange such passageway systems in pairs next to each other or also behind each other and to have them open and close in a coordinated manner with the aid of a control system. The foot element of a passageway system in operation is fixed to the floor and laterally delimits a passageway. In the blocking position intended for at least partially blocking a passage, the at least one blocking element projects from the foot element transversely to the passage direction into the passage and thus at least partially blocks it. In the release position, the blocking element projects at least significantly less into the passage than in the blocking position or releases it completely. In particular in the case of turnstiles, there may be more than one blocking position and/or more than one release position, whereas in the case of a blocking element in the form of a pivoting bracket, only one blocking position and one release position are usual.
To detect people and goods in the passage area, the solutions mentioned below have been proposed:
Document EP 2 184 435 A1 shows a passageway system on whose blocking elements capacitive sensors are arranged.
Document EP 2 717 235 A1 proposes the integration of RFID antenna units in blocking elements of flat design.
Document DE 39 12 667 A1 proposes to arrange a remote data recognition device above the checkout aisle of a supermarket, which detects article numbers optically or by using radio.
DE 10 2008 020 953 B4 describes an entrance system with a monitoring device that monitors the position of at least one blocking element.
DE 199 35 024 A1 describes the detection of goods by quantity and type by receiving radio waves. The writing DE 2009 008 123 B4 describes a scan gate, the two side parts of which form a scan area and which is suitable for detecting RFID tags.
The opening of a passageway system depending on the detection and payment of goods is further described in WO2018/013046A1.
The document DE 20 2017 100 982 U1 concerns a device for inventory monitoring, in particular of goods provided with transponders, and proposes for this purpose a device for entering and leaving a storage room and a goods passageway.
“AmazonGo” stores use entry and exit devices that interact with the customer's smartphone, which runs the “AmazonGo” app intended for this purpose.
Detection units used for the identifying detection of goods are devices that can distinguish items from other items. Devices that merely register the presence of an item, for example a light barrier or a motion sensor, are not detection units. Detection units use radio signals as information carriers in the case of RFID technology and light in the visible and infrared spectrum in the case of optical detection devices, i.e., cameras, barcode scanners, and QR code scanners.
There are disadvantages to using RFID tags. The tags are noticeably more expensive than printed barcodes or QR codes, and their detection does not succeed reliably if goods or goods containers reflect radio waves in an interfering manner. For this reason, barcodes and their optical detection with barcode scanners are still the standard, especially in discount retailing. Goods can also be optically detected on the basis of other visible surface features, so that not only readers but also cameras are suitable detection devices.
It is the task of the invention to further develop a passageway system of the type mentioned above in such a way that the identifying detection of goods placed on transport devices and moved horizontally with them is possible without RFID technology.
The solution of the problem is described in the characterizing part of claim 1.
The invention uses the fact that the at least one blocking element projects into the passage in the blocking position for the optical detection of goods in the area of the passage. The inventive solution is optimal for the detection of goods moved on platform carts or shopping carts with flat baskets. In the case of these transport devices, goods can be arranged side by side instead of one above the other, so that they are individually visible from the perspective of the detection unit and can be detected simultaneously.
The following advantageous embodiments are suitable for making the identifying detection of goods fast and reliable by means of the at least one optical detection device arranged on the at least one blocking element:
According to a first advantageous embodiment, the at least one optical detection device detects infrared light and the same or at least one other optical detection device detects visible light.
According to a second advantageous embodiment, the at least one optical detection device is a camera and/or a reader device. Suitable reader devices are in particular barcode scanners and QR code scanners.
According to a third advantageous embodiment, the detection unit is formed with a plurality of optical detection devices arranged at regular intervals.
According to a fourth advantageous embodiment, the detection unit is formed with alternately arranged cameras and reader devices.
According to a fifth advantageous embodiment, the at least one detection device is directed towards a detection space below and/or above the at least one blocking element when the at least one blocking element occupies the blocking position.
According to a sixth advantageous embodiment, the detection unit is configured to detect goods in motion relative to the detection unit from different perspectives in a continuous detection process. According to a seventh advantageous embodiment, data or signals generated by the detection unit are used not only to detect goods, but also by the control of the drive unit.
The invention will be explained in more detail below. The described advantageous embodiments of the invention can be seen from the combination of
The at least one detection device 12 may be installed within the detection unit 11, see
Number | Date | Country | Kind |
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10 2020 002 894.2 | May 2020 | DE | national |
Filing Document | Filing Date | Country | Kind |
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PCT/DE2021/000085 | 5/8/2021 | WO |