Electronic shelf labelling system with a power supply
The invention relates to an electronic shelf labelling system comprising at least one electronic shelf label that is designed such that it can be contactlessly supplied with power, and at least one shelf edge strip on which at least one shelf label of this type is secured, and an electronic power supply assigned to the shelf edge strip, in particular assigned only to this one shelf edge strip, which is designed to contactlessly supply power to the at least one electronic shelf label secured to said shelf edge strip.
1. An electronic shelf label system ( 1 ), which comprises:
at least one electronic shelf label ( 2 ), realized as an electronic shelf label display, the shelf label ( 2 ) being designed such that the shelf label is supplied with energy contactlessly, and
at least one shelf edge strip ( 3 ), to which at least one shelf label ( 2 ) is fastened, and
an electronic supply device ( 4 ) which is assigned to the shelf edge strip ( 3 ), and is designed to supply energy contactlessly to the at least one electronic shelf label ( 2 ) fastened there, wherein the supply device ( 4 ) comprises:
at least one conductor loop (L 1 -L 5 ) formed on the shelf edge strip ( 3 ), and
an electronic supply unit ( 18 ), which is coupled to the at least one conductor loop (L 1 -L 5 ), and is designed to transmit the energy for the electrical supply of a shelf label ( 2 ), which is mounted on the shelf edge strip ( 3 ) corresponding to the conductor loop (L 1 -L 5 ), contactlessly to the shelf label ( 2 ) with the aid of the conductor loop (L 1 -L 5 ).
2. The system ( 1 ) according to claim 1 , wherein the shelf label ( 2 ) comprises a first NFC interface ( 11 ) for contactless energy supply thereof.
3. The system ( 1 ) according to claim 1 , wherein the shelf label ( 2 ) comprises an energy-saving display unit ( 13 ) based on electronic ink or electronic paper technology.
4. The system ( 1 ) according to claim 1 , wherein exactly one single electronic supply device ( 4 ) is used per shelf edge strip ( 3 ).
5. The system ( 1 ) according to claim 4 , wherein the electronic supply device ( 4 ) is integrated into the shelf edge strip ( 3 ) or is fastened on the same.
6. The system ( 1 ) according to claim 1 , wherein a separate supply station ( 10 ; 21 ) is provided for the energy supply of the electronic supply devices ( 4 ).
7. The system ( 1 ) according to claim 1 , wherein
the electronic supply device ( 4 ) is designed such that the electronic supply device ( 4 ) is supplied with energy wirelessly, and
the supply station ( 21 ) is designed as a supply transmitter for the directed wireless energy supply of the electronic supply device ( 4 ).
8. The system ( 1 ) according to claim 1 , wherein the electronic supply device ( 4 ) is also designed for contactless communication with the shelf label ( 2 ) using the technology which is also used for energy transmission to the shelf label ( 2 ).
9. The system ( 1 ) according to claim 8 , wherein the electronic supply device ( 4 ) is designed for receiving and forwarding a unique identifier of the shelf label ( 2 ) involved in the communication, for the purpose of determining the position of the relevant shelf label ( 2 ).
10. The system ( 1 ) according to claim 9 , wherein
a plurality of conductor loops (L 1 -L 5 ) is formed along the longitudinal extent of the shelf edge strip ( 3 ), each of which conductor loops is coupled by itself to the supply unit ( 18 ), and
the supply unit ( 18 ) is designed for selective energy transmission with the aid of each of the conductor loops (L 1 -L 5 ).
11. The system ( 1 ) according to claim 10 , wherein the supply unit ( 18 ) is designed for multiplexing the energy transmission via the respective conductor loop (L 1 -L 5 ).
12. The system ( 1 ) according to claim 9 , wherein the supply device ( 4 ) comprises a second NFC interface as the supply unit ( 18 ) for contactless energy supply of a shelf label ( 2 ), wherein the at least one conductor loop (L 1 -L 5 ) is a constituent of the second NFC interface intended for energy transmission.
13. The system according to claim 9 , wherein the at least one conductor loop (L 1 -L 5 ) is integrated into the shelf edge strip ( 3 ) or is fastened thereto.
14. The use of an electronic energy supply device ( 4 ) for contactless energy supply of at least one shelf label ( 2 ), wherein the shelf label is designed such that the shelf label is supplied with energy contactlessly, with a shelf edge strip ( 3 ) to which the at least one shelf label ( 2 ) is fastened, wherein the supply device ( 4 ) comprises:
at least one conductor loop (L 1 -L 5 ) formed on the shelf edge strip ( 3 ), and
an electronic supply unit ( 18 ), which is coupled to the at least one conductor loop (L 1 -L 5 ), and is designed to transmit the energy for the electrical supply of a shelf label ( 2 ), which is mounted on the shelf edge strip ( 3 ) corresponding to the conductor loop (L 1 -L 5 ), contactlessly to the shelf label ( 2 ) with the aid of the conductor loop (L 1 -L 5 ).