Product display device with display device

Abstract

A product display device for displaying goods includes: at least two electronic display devices configured to play electronically modifiable information, particularly product information and / or price information, and at least one shelf surface whose sides are defined by shelf surface edges, wherein at least one of the electronic display devices is positioned along two different shelf surface edges.

Description

Technical Field

[0001] This invention relates to a product display device with a display unit. Background Technology

[0002] US 10504389 B2 discloses a merchandise display device with a display unit as an interactive information kiosk. This known merchandise display device has multiple shelves defined for displaying merchandise. An LCD display screen is mounted above the top shelf, by means of which electronically changeable information about the merchandise can be displayed. The kiosk can be installed in different retail structures as needed.

[0003] This known product display device has a drawback: similar to traditional shelves with electronic shelf labels (ESL labels) on their front featuring ESL displays, the preferred viewing direction for electronically modifiable information is primarily perpendicular to the ESL display. In the case of LCD displays, while viewing can be done from both in front of and to the side of the screen, the more gradual the angle between the screen plane and the viewing direction, the lower the visibility of the information becomes. This is due to the inherent technical characteristics of LCD displays and results in poor viewing angles. Summary of the Invention

[0004] Therefore, the objective of this invention is to provide a product display device that avoids the aforementioned problems.

[0005] This task is solved by the product display device according to claim 1. Therefore, the subject of this invention is a product display device for displaying goods, comprising: at least two electronic display devices configured to play electronically modifiable information, particularly product information and / or price information; and at least one shelf surface whose sides are defined by shelf surface edges, wherein at least one of the electronic display devices is positioned along two different shelf surface edges.

[0006] This brings an advantage: there is no longer just one optimal viewing direction for the displayed information. Instead, the information can now be clearly seen from different optimal viewing directions. These different optimal viewing directions are generated by the edge orientation of the different shelf edges that the display device is aligned with. Specifically, the information played by each display device can be viewed in an optimal manner from a position in front of the corresponding shelf edge where the relevant electronic display device is located. Therefore, by mounting on the relevant shelf edge, promotional information can be displayed from different directions in an optimally visible manner for a single product displayed on that shelf.

[0007] Other particularly advantageous embodiments and modifications of the invention will be derived from the dependent claims and the description below.

[0008] Furthermore, the information displayed on different display devices can be the same or different. Especially when the information is the same, it can now be viewed from different directions in the best way.

[0009] As previously described, the merchandise display device has at least one shelf surface. This shelf surface is fixed to a mechanical support structure of the merchandise display device. This support structure can be a wall to which the shelf surface is fixed. Alternatively, one or more columns can be used to fix the shelf surface, such as so-called perforated wall columns, which have perforated walls into which the shelf surface can be hung.

[0010] Sheet surfaces can have different shapes, and therefore can have different numbers of shelf edges. Not every shelf edge needs to be equipped with an electronic display device.

[0011] According to one construction, the product display device has a back wall from which at least one shelf surface protrudes, with one edge of the shelf surface facing the back wall. The shelf surface has at least two overhanging edges, and at least one of the electronic display devices is positioned along these overhanging edges. Therefore, the shelf surface can be triangular or polygonal in shape. In this configuration, one shelf surface edge is always not equipped with a display device and faces the back wall.

[0012] According to a preferred configuration, the at least one shelf surface has a rectangular shape, particularly a square shape, and at least one electronic display device is positioned along the edge of each suspended shelf surface. This configuration ensures that the information played by the display device can be clearly seen from multiple directions other than directly from the back wall. Therefore, the information can be viewed as well from the front of the product display device as from the side. Depending on the possible viewing angle preset by the display device (measured from the normal direction of the front of the display device), the information can even be clearly viewed from a position slightly to the side behind the back wall.

[0013] According to another construction, the product display device can also be configured as a backless structure, wherein at least one shelf surface has suspended edges on all four sides, and one electronic display device is positioned along each edge of the shelf surface. This construction can be achieved, for example, by providing supporting columns or supports only at the outer corners of the shelf surface. Similarly, this construction can also be achieved, for example, by providing supports for the shelf surface within the shelf surface itself. If the suspended edges of the shelf surface are equipped with display devices, the displayed information can be perfectly acquired from any direction around the product display device.

[0014] Product display devices can incorporate electronic shelf labels as electronic display devices, especially through electrophoretic screens.

[0015] The electronic shelf label can be fixed to a passive shelf rail that extends along the edge of the corresponding shelf surface, where a display device for mechanical fixation is provided. In this case, the electronic shelf label itself is configured to perform radio-based communication in order to supply information to be played, for example, via an access point.

[0016] The electronic shelf label can also be fixed to an active shelf rail that extends along the edge of the corresponding shelf surface and is equipped with a mounting point for the display device and provides power and / or communication. This active shelf rail may have a wired interface to which the electronic shelf label is connected. A shelf rail controller integrated into the shelf rail controls communication with the electronic display device and provides a radio-based interface to external communication devices (e.g., access points).

[0017] Preferably, the corresponding shelf rails extend along the entire edge of the shelf surface. The individual electronic shelf labels are then arranged and fixed continuously along the shelf rails, individually or substantially covering each other, flush with one another.

[0018] However, the product display device preferably includes a video shelf rail as an electronic display device, which is configured to play video content, wherein the video shelf rail extends substantially along the entire edge of the shelf surface. Therefore, with a single electronic device (i.e., the video shelf rail), information playback can be achieved substantially along the entire edge of the shelf surface, and can be played as either still images or video images.

[0019] Because the housing shape of such video shelving rails is typically angular or angular, it has proven advantageous to incorporate cylindrical sector-shaped segment elements between adjacent video shelving rails arranged at the bottom of the shelf surface. These segments have curved surfaces shaped to allow a continuous transition from the front of one video shelving rail to the front of another. Therefore, a change in direction can be achieved across the edges of different shelf surfaces via the continuously curved connecting surfaces between adjacent video shelving rails. This avoids visually and tactilely disruptive edges and corners along the perimeter of the shelf surface.

[0020] A particularly advantageous feature is that the video shelving rails extend upwards above the shelf surface. This feature allows the video shelving rails to be used directly as the boundary of the shelf surface.

[0021] However, in order to achieve a slender structure for the video shelving rails while preventing items significantly taller than the rails from falling, it has proven particularly advantageous to have limiting elements extending along the edges of the shelving panels, preferably configured as limiting supports, adjacent to their respective overhanging edges, to restrict the space on the shelving panels for the merchandise. These limiting elements can be made of, for example, plastic or metal, thus possessing the necessary strength and durability. Simultaneously, the limiting elements can be designed to be relatively narrow and visually inconspicuous, blending into the background as much as possible. Alternatively, the limiting elements can be made of transparent materials, such as transparent plastic or glass, to present the merchandise behind them as unobstructedly as possible.

[0022] To detect customer traffic and / or the behavior of people lingering in front of a merchandise display, it has proven advantageous for the display to include at least one detection device, particularly a radar sensor, to detect the surrounding environment. This allows for the detection of the impact of information displayed on people in the vicinity of the display. Furthermore, the detected data can be processed without concerns about data privacy when using a radar sensor.

[0023] It has proven particularly advantageous that the detection device is integrated into the display device, and that the detection range of the detection device is substantially perpendicular to the frontal orientation of the display device, which is set for observing electronically alterable information. In particular, with this configuration, the effect of the displayed information on a person in front of the display device can be directly inferred.

[0024] Another aspect concerns the power supply for the merchandise display device. In this regard, it has proven advantageous for the merchandise display device to have a power supply unit, particularly configured as a power adapter, which is designed to provide power to the electronic equipment, especially the electronic display device, of the merchandise display device. Such a power supply unit may, for example, consist of a replaceable battery, a rechargeable battery, or a battery that can be charged, for example, via Power over WiFi.

[0025] To ensure optimal protection of the power supply unit from environmental influences, it has proven advantageous to have equipment openings that face downwards only. In this context, "downwards" essentially means oriented in or at least toward the direction of gravitational acceleration. This ensures that solid and liquid substances that might fall onto the power supply unit from above during actual operation do not enter the unit through the openings, but instead continue to drain downwards along its casing.

[0026] In order to ensure a safe distance from any liquid substances that may be present below the power supply unit, it has proven advantageous to arrange the power supply unit at intervals from the ground where the merchandise display unit is located, especially at intervals from the bottom shelf surface.

[0027] Furthermore, it has proven advantageous to arrange the power supply for the electronic equipment of the merchandise display device as follows: the wiring extends along the mechanical support structure of the merchandise display device, wherein the only cable leading out from the merchandise display device is a cable with a power plug for connecting the power adapter, which constitutes the power supply unit, to mains power. Therefore, powering the merchandise display device can be done as simply as possible, especially in shop spaces where only a very limited number of mains outlets are typically available. Moreover, wiring housed within or along the mechanical support structure ensures that the wiring is protected as safely as possible from environmental influences and improper handling.

[0028] To expand the range of information display, the product display device may also be equipped with a screen in addition to the aforementioned at least two electronic display devices. In particular, this screen is located in the upper area of ​​the product display device, especially at the very top, where information can be presented over a large area. Therefore, the screen is preferably located above the product placement area, especially above the shelf surface. Particularly preferred is that the screen extends beyond other structures of the product display device, and particularly forms part of the uppermost section of the product display device. The screen is also powered by a power supply unit.

[0029] In this context, it has proven particularly advantageous for the power supply unit to have a media player configured to control and connect to the screen using playback content. Furthermore, it should be mentioned that the screen itself can also have radio communication capabilities, allowing control via a radio infrastructure. However, it should also be noted that the media player can be integrated into the screen itself. The media player should be understood as a computer programmed, for example, to receive and process MPEG-encoded video data and output signals (digital or analog) suitable for the screen, thereby enabling the visualization of content on the screen.

[0030] In addition, it should be mentioned that the power supply unit may also have a radio interface, which allows for setting an active power supply state or an energy-saving standby state via radio communication, for example.

[0031] Regarding the mechanical structure of the merchandise display device, it should also be mentioned that it can be equipped with (especially height-adjustable) support legs. However, it is preferable that the merchandise display device is equipped with casters (or wheels) that support it on the ground, and that the casters can be easily adjusted in the store without lifting the display device off the ground. The casters may have brakes that can be used to lock the casters in place to secure their location.

[0032] In operation, a method for operating a merchandise display device is used, wherein, according to the method, a control device independent of the merchandise display device transmits content data (especially video data) to an electronic display device constituting the radio communication via a radio communication infrastructure. The radio communication infrastructure may, for example, have one or more access points. These access points may, for example, be wired to the control device. Thus, the control device, implemented as a computer or server, can be used and installed in the space of a shop where the merchandise display device is also located. However, the access points may also be connected to the Internet via a gateway, thereby communicating with a control device provided within a computing center through a so-called cloud solution.

[0033] According to this method, the merchandise display device transmits detection data generated by the detection device previously discussed, which represents human activity in the surrounding environment of the merchandise display device, either directly from the detection device configured to perform radio communication to the control device, or indirectly via the display device configured to perform radio communication to the control device.

[0034] To qualitatively or quantitatively analyze the effectiveness of marketing initiatives implemented using content data, this method uses a control device to analyze personnel activities related to electronically modifiable content represented by detection data, and modifies the content as necessary to improve personnel activities.

[0035] Therefore, the effect of the played information can be detected, evaluated, and tested directly in real time. If each shelf edge is equipped with a sensor, the information played at each shelf edge can be designed individually, and its effect can be tested individually.

[0036] In summary, improved information display is provided in the product display device because at least one of the aforementioned electronic display devices is positioned along the edges of two different layers on the same shelf.

[0037] The edges of the two shelf surfaces form an angle with each other, preferably 45° to 135°, and particularly preferably 70° to 110°. Preferably, the edges of the two shelf surfaces are perpendicular to each other.

[0038] Finally, it should be generally noted that the electronic devices discussed all naturally possess electronic components. These electronic components can be constructed discretely or through integrated electronic components, or a combination of both. Microcomputers, microcontrollers, application-specific integrated circuits (ASICs), and, where necessary, analog or digital electronic peripheral components can be combined. Many of the functions mentioned in these devices are implemented, as necessary, through cooperation with hardware components, by means of software executing on the processor of the electronic component. Devices configured for radio communication typically have an antenna configuration as part of a transceiver module for transmitting and receiving radio signals. Furthermore, these electronic devices may have an internal power supply, which can be implemented, for example, through replaceable or rechargeable batteries. These devices can also be powered via wired connections, through an external power adapter, or via Power over LAN. Attached Figure Description

[0039] These and other aspects of the invention will become apparent from the accompanying drawings discussed below.

[0040] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments, but the invention is not limited thereto. Here, in different drawings, the same components are given the same reference numerals. In an illustrative manner: Figure 1 A perspective view of the merchandise display device is shown. Figure 2A-2D The image shows a view of the merchandise display device from an orthogonal direction. Figure 3 A block diagram of the infrastructure using the product display device is shown. Detailed Implementation

[0041] Figure 1The product display device 1 is shown, which has a back wall 2 on its back, on which four shelves are fixed: a first shelf 3, a second shelf 4, a third shelf 5, and a fourth shelf 6. A screen 7 is installed at the upper end of the back wall 2.

[0042] In this case, the back wall 2 is composed of a hollow profile frame 8, which surrounds a metal mesh 9. The hollow profile columns 8A and 8B on the left and right sides have slots arranged in a grid on their front sides facing the shelf surfaces 3 to 6, into which the shelf surfaces 3 to 6 are hooked by their rearward-protruding fixing hooks (not visible).

[0043] Each shelf surface 3 to 6 is square in shape and made of metal plates with bent edges, thus having four shelf surface edges 10 to 13. Shelf surface edges 10 to 13 are marked only at the third shelf surface 5, as they are clearly visible from there. The respective first shelf surface edges 10 are connected to the metal mesh 9 and are therefore not suspended. The remaining three shelf surface edges 11 to 13 are suspended.

[0044] The first shelf surface 3 and the second shelf surface 4 each have an electronic display device implemented as a video shelf rail 14 at the suspended shelf edges 11 to 13, for playing still image content and / or video content. In this configuration, the played content can be perfectly seen whether viewed from the left or right side of the merchandise display device 1 or from the front. The gaps between the video shelf rails 14 are filled with cylindrical sector segment elements 15 to create a uniform transition between the front faces of adjacent video shelf rails 14. This creates the impression of three video shelf rails 14 arranged continuously along the suspended shelf edges 11-13. This avoids protruding corners or edges of the housing, preventing potential injury hazards. The video shelf rail 14 has a memory for storing video data VD, a computer for processing this video data VD, and a shelf rail screen 16 mounted on the front for visualizing the content represented by the video data VD. Each video rack rail 14 is equipped with a radio module, which can receive video data VD through a radio communication infrastructure.

[0045] In this embodiment, only the top two shelves 3 and 4 are enclosed by the video shelving rails 14, as they are within the field of vision of adults. Therefore, the bottom two shelves 6 and 5 are configured without video shelving rails along their overhanging edges 11 to 13. The bottom shelf 6 is used for placing merchandise and, together with the bottom crossbeam of the hollow profile frame 8, forms the base or pedestal of the merchandise display device 1, which is supported on the shop floor. The merchandise display device 1 has height-adjustable support feet 17 oriented at its four corners at the bottom.

[0046] The height of the video shelving rail 14 is designed so that it is only slightly higher and lower than the edges 11-13 of the side shelves, so as not to obstruct the view of the goods placed on the shelves 3-5 as much as possible. To prevent damage to the video shelving rail 14 when retrieving products from the uppermost shelves 3 and 4, or to prevent goods from tipping over, each of the upper shelves 3 and 4 has an elongated metal bracket 18 along its overhanging edges 10 to 13. The metal bracket 18 is mounted on the top surface of the shelves 3 and 4 at a small distance from the video shelving rails 14 arranged parallel to them, extends approximately along the entire length of the video shelving rails 14, and is approximately the height of the video shelving rails 14 above the top surface.

[0047] Above the bottom shelf 6, a power supply unit 19 is mounted along the metal mesh 9. A so-called cold equipment plug (e.g., conforming to IEC-60320 C13 / C14) can be connected to this power supply unit, allowing connection to mains power. This is the only cable extending from the merchandise display unit 1. The power supply line from the power supply unit 19 is guided substantially imperceptibly or invisibly along the supporting structure of the merchandise display unit 1 to the electrical equipment (video shelf rails 14 and screens 7) and connected to these devices. An additional data cable for connecting to a media player is also provided for screen 7. The power supply unit 19 has a series of openings 20 for ventilation or air exchange, but these openings all face downwards to protect the interior of the power supply unit from contamination by liquids or falling solids.

[0048] To detect the situation in front of the merchandise display device 1, such as customer flow or their behavior, and if necessary, the interaction between customer flow and the merchandise display device 1, the merchandise display device 1 also has a sensor, in this case, configured as a radar sensor 21. The radar sensor 21 generates detection data ED and outputs it upon detecting a scene occurring or present within its detection range. In this case, the radar sensor 21 is located at the edge 12 of the front shelf surface, adjacent to the video shelf guide rail 14 placed there, and its detection range is spatially oriented towards the front of the merchandise display device 1. Similar measures can also be set on the left and right sides, i.e., along the left shelf surface edge 11 or the right shelf surface edge 13. Alternatively, only one or more radar sensors can be equipped on a single shelf surface.

[0049] In this configuration, radar sensor 21 is connected to power supply unit 19 in the manner described above for power supply. In this configuration, each radar sensor 21 has its own radio module to enable the use of communication infrastructure. Alternatively, radar sensor 21 may also be electrically connected to adjacent positioned video shelf rails 14 for power supply. Alternatively, to utilize existing radio modules in video shelf rails 14, radar sensor 21 may also be electronically connected to adjacent video shelf rails 14. However, radar sensor 21 is preferably integrated within video shelf rails 14, i.e., spatially located inside a housing, and electrically and electronically coupled to the electronics there, such that it is powered through video shelf rail 14 itself, and radar sensor 21 can transmit its detection data ED via the radio communication module of video shelf rail 14.

[0050] exist Figures 2A to 2D The image shows a product display device 1 viewed from an orthogonal perspective. Specifically, Figure 2A The left side of the product display unit 1 is shown. Figure 2B The front of the product display unit 1 is shown. Figure 2C The right side of the product display unit 1 is shown. Figure 2D The product display unit 1, viewed from above, is shown. To avoid various... Figures 2A to 2D The text contains an excessive number of figure labels, which has been intentionally reduced.

[0051] exist Figure 3 A block diagram of the system is schematically shown to illustrate the method for operating the merchandise display device 1. Figure 3On the left, the previously discussed merchandise display device 1 can be seen. In the store where the merchandise display device 1 is located, the sole radio access point 22 symbolizes the store's radio communication infrastructure, which, as those skilled in the art will understand, can be designed to be more complex. Radio access point 22 is wired to gateway 23, which provides internet connectivity, symbolized by cloud 24. Additionally, the brand supplier's data processing device 25 (e.g., a server or computing center) is also visible, connected to the internet. The brand supplier generates or provides video data VD for playback via video shelf rail 14 and transmits it to the merchandise display device 1 via the aforementioned communication infrastructure, where the content is visualized. During content visualization via video shelf rail 14, customer activity in front of the merchandise display device 1 is detected using radar sensor 21, and detection data ED representing these activities is transmitted to the data processing device 25 via the aforementioned communication infrastructure. In the data processing device 25, the acquired detection data ED is analyzed to determine whether the content played on the merchandise display device 1 elicits desired customer behavior in front of the merchandise display device 1. Based on the analysis results, the video data VD, representing the content to be played, can be adjusted and retransmitted, thus enabling real-time detection and further analysis of customer dynamics occurring in front of the product display device 1. After a marketing campaign ends, the video data VD can also be completely changed, allowing the product display device 1 to promote a completely different product.

[0052] Furthermore, the same applies to the screen 7 above, which can play different content depending on the occasion.

[0053] Unlike commonly used cardboard or paper display stands (often referred to in the industry as "add-on displays") that must be discarded after a marketing campaign, the measures described in this disclosure offer an eco-friendly solution due to their durability. The ability to digitally personalize the content to be played, and to test its promotional effectiveness in real time, creates a depth of intervention for brand manufacturers in designing their marketing campaigns that has never been possible before.

[0054] Finally, it should be reiterated that the accompanying drawings described in detail above are merely embodiments, and those skilled in the art can modify them in various ways without departing from the scope of the invention. For completeness, it should also be noted that the use of the indefinite article "a" or "an" does not preclude the possibility that multiple related features may exist.

Claims

1. A product display device (1) for displaying goods, comprising: - At least two electronic display devices configured to display electronically modifiable information, particularly product information and / or price information, and - At least one shelf surface (3-4), the sides of which are bounded by the shelf surface edge (10-13), Along two different layer edges (10-16), at least one of the electronic display devices is positioned at each layer edge (10-16).

2. The product display device (1) according to claim 1, having a back wall (2), at least one shelf surface (3-4) protruding from the back wall, one of the shelf surface edges (10) facing the back wall (2), and the shelf surface (3-4) having at least two suspended shelf surface edges (11-13), and at least one of the electronic display devices being positioned along the at least two suspended shelf surface edges (11-13).

3. The product display device (1) according to claim 2, wherein, The at least one shelf surface (3-4) has a rectangular shape, especially a square shape, and at least one of the electronic display devices is positioned along the edge (11-13) of each suspended shelf surface.

4. The product display device (1) according to claim 1, which is constructed without a back wall, wherein the at least one shelf surface (3-4) has shelf surface edges (10-13) that are suspended around the perimeter, and an electronic display device is positioned along each of the shelf surface edges (10-13).

5. The product display device (1) according to any one of the preceding claims, comprising an electronic shelf label as the electronic display device, particularly by means of an electrophoretic screen, the electronic shelf label being fixed to a passive shelf rail extending along the corresponding shelf surface edge (10-13) and provided therefor mechanically fixing the display device; or the electronic shelf label being fixed to an active shelf rail extending along the corresponding shelf surface edge (10-13) and provided therefor fixing the display device as well as power supply and / or communication supply.

6. The product display device (1) according to any one of the preceding claims, having a video shelf rail (14) as the electronic display device, the video shelf rail being configured to play video content, and the video shelf rail (14) extending substantially along the entire edge (11-13) of the shelf surface.

7. The product display device (1) according to claim 6, wherein, Cylindrical sector segment elements (15) are provided between adjacent video shelf rails (14) arranged at the bottom (3-4) of the shelf surface. The curved surface of the cylindrical sector segment elements is shaped such that the front of one video shelf rail (14) transitions continuously to the front of another video shelf rail (14).

8. The product display device (1) according to any one of claims 6 to 7, wherein, The video shelf guide rail (14) extends upward above the shelf surface (3-4).

9. The product display device (1) according to any one of the preceding claims, wherein, The shelf surface (3-4) and its corresponding suspended shelf surface edge (11-13) have a limiting element extending along the shelf surface edge (11-13), preferably configured as a limiting bracket (18), for limiting the space for goods to be placed at the shelf surface (3-4).

10. The merchandise display device (1) according to any one of the preceding claims, having at least one detection device, particularly configured as a radar sensor (21), for detecting the surrounding environment of the merchandise display device (1).

11. The product display device (1) according to claim 10, wherein, The detection device is integrated into the display device, and the detection range of the detection device is substantially perpendicular to the front orientation of the display device, which is set for observing electronically alterable information.

12. The merchandise display device (1) according to any one of the preceding claims, having a power supply unit (19), particularly configured as a power adapter, the power supply unit being configured to provide power to the electronic devices (7, 14, 21) of the merchandise display device (1), particularly to the electronic display device.

13. The product display device (1) according to claim 12, wherein, The power supply device (19) has a device opening (20), wherein the device opening (20) faces only downward.

14. The product display device (1) according to claim 12, wherein, The power supply device (19) is arranged at intervals from the ground where the merchandise display device (1) is located, especially at intervals from the bottom shelf surface (6).

15. The merchandise display device (1) according to claim 12, having wiring for powering electronic devices (7, 14, 21), the wiring extending along the mechanical support structure of the merchandise display device (1), wherein the only cable extending from the merchandise display device (1) is a cable with a power plug for connecting a power adapter constituting the power supply unit (19) to mains power.

16. The merchandise display device (1) according to claim 12, further comprising a screen (7) in addition to the at least two electronic display devices, particularly mounted in the upper region of the merchandise display device (1), wherein, The power supply unit (19) has a media player configured to control the screen (7) and connected to the screen.

17. A method for operating a merchandise display device (1) according to any one of claims 1 to 16, wherein according to the method: - Content data, especially video data (VD), is transmitted to an electronic display device configured to perform radio communication via a control device (25) independent of the product display device (1) through a radio communication infrastructure (22).

18. The method according to claim 17, wherein, The product display device (1) sends detection data (ED) to the control device (25), the detection data being generated by means of the detection device according to claim 10 and representing human activity in the surrounding environment of the product display device (1); the detection data is either output directly from the detection device configured to perform radio communication or indirectly through the display device configured to perform radio communication.

19. The method according to claim 18, wherein, The control device (25) analyzes personnel activities related to electronically modifiable content represented by the detection data (ED) and the content data, and modifies the content as necessary to improve personnel activities.

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