DE102018206538A1 - Device for detecting gestures of persons - Google Patents

Abstract

The invention relates to a device for detecting gestures of persons or the like, comprising a screen, a projector, wherein the projector is designed to provide light of at least one wavelength and to project the light onto the screen and at least one detector, wherein the detector is formed to detect the light backscattered by a person by performing a non-contact gesture, and wherein the detector is located outside the light path from the projector to the screen.

Description

The invention relates to a device for detecting gestures of persons or the like.

The invention further relates to a goods presentation device.

The invention further relates to a method for detecting gestures of persons or the like.

Although usable with any devices or devices, the present invention will be explained in relation to goods display devices in the form of shelves.

State of the art

Goods presentation devices, for example in a supermarket or the like have become known in the form of a goods shelf. Such shelves have a plurality of shelves, which are arranged one above the other and are placed on the respective products or the like. For example, printed merchandise labeling labels may be affixed to an end of the shelf facing the supermarket visitor on which information on the corresponding products may be displayed, such as price, weight, manufacturer or the like. In addition, so-called electronic label have become known, which are attached to the shelves or shelves goods that indicate preprogrammed content analogous to the printed Warensuchuchenetiketten statistically for a buyer. The presentation contents of the electronic labels can be programmed, for example, by means of handheld devices.

From the DE 10 2012 107 689 B3 is a vacuum cleaner with controls and indicators known for its operation. By using a projection unit, the operating and display elements are projected onto a projection screen. A light source for radiation in the non-visible region and a camera for receiving reflected radiation of the light source are provided for detecting an operation of the operating elements on the projection surface by a user. In detail, a projection unit is shown which projects an image onto a surface. In this area, the user can interact with the device in which his movements are registered by a detector.

From the DE 10 2010 039 371 B4 a control device for a household appliance and a corresponding household appliance has become known. The control device comprises a control unit and an optical detection device with a detector which is designed to detect operating operations of an operator and / or a position of an object and / or an extension of an object within a detection area. The detector can thus detect gestures with spatial resolution within the detection range.

Disclosure of the invention

In one embodiment, the invention provides a device for detecting gestures of persons or the like, comprising a screen, a projector, wherein the projector is configured to provide light of at least one wavelength and to project the light onto the screen, and at least one detector the detector is adapted to detect the light backscattered by a person by performing a non-contact gesture, and wherein the detector is located outside the light path from the projector to the screen.

In a further embodiment, the invention provides a goods display device comprising an apparatus according to any one of claims 1-6, one or more goods carrying means and holding means for the goods carrying means, the screen being formed by a portion of a goods carrier means and wherein the projector is in the holding means or is arranged in the goods carrier device.

In a further embodiment, the invention provides a method for detecting gestures of persons or the like, wherein by means of a projector light of at least one wavelength is provided and the light is projected onto a screen and by means of at least one detector by a person by the execution of a Non-contact gesture backscattered light outside the light path from the projector to the screen is detected.

Here, the phrase "outside the light path from the projector to the screen" in the broadest sense to understand and refers in particular in the description, preferably in the claims, for example, a possible arrangement of the detector next to the light path from the projector to the screen and / or on a possible Location of the detector on the side of the screen facing away from the projector. In other words, the detector is not located in the light path from the projector to the screen.

One of the advantages achieved with this is that non-contact gestures, which in particular do not require touching the screen, can be reliably detected. Another advantage is the Compact design with simultaneous reliable detection of non-contact gestures. Likewise, a high flexibility is given because the device is easy to retrofit into existing structures such as shelves and is inexpensive to manufacture.

Further features, advantages and further embodiments of the invention are described below or become apparent:

According to an advantageous development, light can be detected in a predetermined angular range by means of the detector, wherein the screen is outside the predetermined angular range. Advantage of this is that even more distant gestures can be reliably detected, at the same time only reflected radiation is measured. Interference between emitted and reflected by a user's hand or the like radiation when performing the gesture is thus avoided.

According to a further advantageous development, the projector is designed to emit single or multi-color visible light and / or light in the IR range, the screen being transparent for at least one of the wavelengths of the light emitted by the projector. The advantage of this is that a particularly compact design is achieved, since an additional beam guidance, for example, for the projection of an image on the screen and for the detection of gestures is eliminated.

According to a further advantageous development, the detector comprises at least one photodiode. Thus, the photocurrent of reflected radiation can be detected by a gesture or the like in a simple manner and, for example, fed to an evaluation device.

According to a further advantageous development, a protective cover for protecting the detector, in particular the at least one photodiode, is arranged. The advantage of this is that the device is robust and thus damage to the detector can be avoided or at least reduced.

According to a further advantageous development of the goods presentation device, the detector is arranged in the lower region of the goods carrier device in front of the screen. This avoids accidental user damage when making gestures. At the same time a reliable recognition of gestures is possible. In particular, "in front of the screen" means that the detector is not located between the projector and the screen.

According to a further advantageous development, at least one further detector is arranged in at least one of the goods carrier devices. Thus, the reliability in the detection of gestures can be further increased.

Further important features and advantages of the invention will become apparent from the subclaims, from the drawings, and from associated figure description with reference to the drawings.

It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

Preferred embodiments and embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components or elements.

list of figures

• 1 eine Vorrichtung zur Erkennung von Gesten gemäß einer Ausführungsform der vorliegenden Erfindung in der Draufsicht; und
• 2 einen Teil der Vorrichtung gemäß 1 in Seitenansicht.

This shows in schematic form

• 1 a gesture recognition apparatus according to an embodiment of the present invention in plan view; and
• 2 a part of the device according to 1 in side view.

Embodiments of the invention

1 shows a device for detecting gestures according to an embodiment of the present invention in plan view.

In detail is in 1 a device 1 shown for recognizing gestures. This includes a projector 3 with visible light, for example colored light, in particular red, green and / or blue and in particular additionally with light in the infrared range, a screen 2 applied. The projector 3 is in a shelf 11 a goods shelf 10 arranged. The screen 2 in this case forms the edge of the shelf facing a customer 11 , The beam path 6 of the project 3 runs from the projector 3 over the screen 2 and covers a given angle range 7 with light. In this angle range 7 can a gesture 5 , preferably at a distance to the screen 2 between 1 cm and 100 cm, be recognized by a part of the projector 3 For example, a customer moves his hand within the given angle range 7 , that will be from the projector 3 emitted light reflects and can by means of a outside the light path of the emitted light, here in 1 behind the screen 2 looking in the direction of the projector 3 emitted light and next to the light path of the emitted light from the projector 3 to the screen 2 arranged photodiode 4 that have a detection angle range 8th has to be detected. The photodiode 4 thus has a detection angle range 8th up, with the given angle range 7 at least partially overlapped. In this overlap area can therefore by a gesture 5 reflected radiation of the projector 3 be detected. Based on the in the photodiode 4 measured photocurrent of the light reflected by the hand or the like, after appropriate evaluation, a gesture 5 be recognized. For this purpose, the detector 4 be connected to an evaluation device (not shown here). The detector, here the photodiode 4 , is accompanied by a protective cover 9 protected. The photodiode 4 is essentially in front of the screen 2 arranged and looks from the screen 2 gone, that is the screen 2 is not within the range of the detection angle 8th the photodiode 4 ,

Furthermore, additional detectors 4 be arranged, especially in the shelf 11 and / or on the shelf 10 even.

2 shows a part of the device according to 1 in side view.

In 2 is now a side view of the shelf 11 according to 1 shown. The shelf 11 is part of the goods shelf 10 , which on a holding device 12 in the form of the rear wall of the goods rack 10 is fixed. The screen 2 is on the side of the shelf 11 arranged, the holding device 12 turned away. In front of the screen 2 at the bottom edge of the shelf 11 is the photodiode 4 arranged, whose detection angle range 8th from the screen 2 away or towards a customer.

It is possible to arrange further detectors, in particular in the form of photodiodes, for example, for improving the reliability of the detection of gestures and / or for increasing the overall detection angle range, in particular in the shelf 11 and / or on the holding device 12 ,

• • Einfache Herstellbarkeit.
• • Kostengünstige Herstellung.
• • Einfacher Aufbau.
• • Kompakter Aufbau.
• • Zuverlässige Erkennung von Gesten.

In summary, at least one of the embodiments has at least one of the following advantages:

• • Easy to produce.
• • Cost-effective production.
• • Easy construction.
• • Compact construction.
• • Reliable detection of gestures.

Although the present invention has been described in terms of preferred embodiments, it is not limited thereto, but modifiable in a variety of ways.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012107689 B3 [0006]
• DE 102010039371 B4 [0007]

Claims (10)

Device (1) for detecting gestures (5) of persons or the like, comprising a screen (2), a projector (3), wherein the projector (3) is designed to provide light of at least one wavelength and to transmit the light to the screen ( 2) and at least one detector (4), wherein the detector (4) is adapted to detect the light backscattered by a person by performing a non-contact gesture (5), and wherein the detector (4) is located outside the light path ( 6) from the projector (3) to the screen (2) is arranged. Device according to Claim 1 , wherein by means of the detector (4) light in a predetermined detection angle range (8) is detectable, wherein the screen (2) outside the predetermined detection angle range (8). Device according to one of the Claims 1 - 2 in which the projector (3) is designed to emit single- or multi-color visible light and / or light in the IR range, and wherein the screen (2) is made transparent for at least one of the wavelengths of the light emitted by the projector (3). Device according to one of the Claims 1 - 3 wherein the detector (4) comprises at least one photodiode. Device according to one of the Claims 1 - 4 , wherein a protective cover (9) for protecting the detector (4), in particular the at least one photodiode is arranged. Device according to one of the Claims 1 - 5 in which the device (1) is designed to detect gestures (5) at a distance of between 1 cm and 150 cm, in particular between 10 cm and 100 cm. A merchandise display device (10) comprising a device according to any one of Claims 1 - 6 , one or more goods carrier devices (11) and a holding device (12) for the goods carrier devices (11), wherein the screen (2) is formed by a region of a goods carrier device (11) and wherein the projector (3) in the holding device (12) or in the goods carrier device (11) is arranged. Goods presentation device according to Claim 7 , wherein the detector (4) in the lower region of the goods carrier device (11) in front of the screen (2) is arranged. Goods presentation device according to one of Claims 7 - 8th , wherein at least one further detector (6) is arranged in at least one of the goods carrier devices (11). Method for detecting gestures (5) of persons, wherein by means of a projector (3) light of at least one wavelength is provided and the light is projected onto a screen (2) and by means of at least one detector (4) the light backscattered by a person by the execution of a non-contact gesture (5) outside the light path (6) from the projector (3) to the screen (2) is detected.

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