KR102247326B1 - Digital signage system - Google Patents

Abstract

The present invention relates to a digital signage system. The digital signage system includes: a film unit which is installed at least partially on an openable door, and whose state parameters are adjusted according to an applied driving voltage, wherein the state parameter includes the transparency of the film unit; a projection unit for projecting an image to a film unit; a sensor unit which detects door opening/closing state information and surrounding environment information; and a control unit which interlocks with one or more of door opening/closing state information and surrounding environment information detected by the sensor unit and controls at least one of the state parameter of the film unit adjusted through control of the driving voltage, and a projection image projected to the film unit through the projection unit. The present invention provides the digital signage system capable of improving advertising effect.

Description

Digital signage system {DIGITAL SIGNAGE SYSTEM}

The present invention relates to a digital signage system, and more particularly, to a digital signage system for visually outputting digital media information.

The traditional advertising method has been to provide flyers with advertisement content posted offline or online through TV, radio, or Internet media. This advertisement method not only provides fixed information in one direction, but also has different owners and producers of advertisement contents, making it difficult to quickly modify, change, or update pre-produced advertisement contents.

Digital signage is a media player that includes a display panel that is generally used for marketing or advertisement. Unlike the above-described traditional advertising method, digital media information displayed can be easily changed, thereby promoting a company's product. And it is used to display content for the purpose of image enhancement.

However, the current advertising method using digital signage is operated in the form of simply repeatedly exposing digital media information to an unspecified number of people, as well as exposing only the advertising content provided by the advertiser, so it has limited usability. Due to the limited usability of the signage operator or advertiser, there is a limit to maximizing the economic effect of signage operation.

An object of the present invention is to provide a digital signage system capable of improving advertisement effects by overcoming the limitations of a conventional digital signage method that repeatedly displays fixed content.

The digital signage system according to an aspect of the present invention is a film part that is installed at least partially on a door that can be opened and closed, and whose state parameter is adjusted according to an applied driving voltage, wherein the state parameter includes transparency of the film part, Film part; A projection unit for projecting an image onto the film unit; A sensor unit that detects information on an open/closed state of the door and information on a surrounding environment; And a state parameter of the film part adjusted through the control of the driving voltage and a projection projected to the film part through the projection part in association with one or more of the door open/close state information and the surrounding environment information detected by the sensor part. And a control unit for variably controlling one or more of the images.

In the present invention, the state parameter of the film unit may further include at least one of a pattern formed according to a difference in transparency of each channel of the film unit, and a projection area through which the projected image is projected to the film unit.

In the present invention, when the door is in a closed state, the control unit includes a first control for controlling the transparency of the film unit to a value equal to or less than a predefined reference transparency, or a second control for controlling the projection image to a stored image stored in advance. It is characterized in that the control is performed.

In the present invention, the surrounding environment information includes the illuminance of the periphery of the door, and the control unit, when performing the first control, increases the transparency of the film unit as the illuminance sensed by the sensor unit increases. It is characterized by controlling to a low value.

In the present invention, the surrounding environment information further includes a light direction incident to the door, and the control unit determines the transparency of the first channel of the film unit corresponding to the light direction sensed by the sensor unit. The transparency of the first channel is controlled to a value lower than the transparency of the second channel other than the channel, and as the illuminance sensed by the sensor unit increases, the transparency of the first channel is controlled to a lower value.

In the present invention, the surrounding environment information includes surrounding objects located in the vicinity of the door, and the controller approaches the surrounding object detected by the sensor unit while the first control is maintained. When it is determined that the first control is stopped and the surrounding object approaches the door, the transparency of the film unit is controlled to a higher value.

In the present invention, when performing the second control, the control unit controls a state parameter of the film unit in connection with a stored image projected to the film unit.

In the present invention, the control unit is characterized in that when the door is opened, the transparency of the film unit is controlled to a value equal to or greater than a predefined reference transparency, and the image projection operation of the projection unit to the film unit is stopped.

The present invention is characterized in that it further comprises a; manager terminal for remotely controlling the state parameter of the film unit.

In the present invention, the film unit is characterized in that it includes a PDLC (Polymer Dispersed Liquid Crystal) film or an SPD (Suspended Particle Device) film.

In the present invention, the door is an automatic opening and closing door that is installed at a retailer and automatically opens and closes by sensing the touch of an object or proximity of an object, and is an automatic opening and closing door made of a transparent material, and a projection image projected to the film unit when the door is closed. Is characterized in that it includes an advertisement image of the seller.

According to one aspect of the present invention, in a state in which a film configured to adjust transparency according to an applied driving voltage is installed on a door of a vendor, the transparency of the film or projection on the film according to the opening and closing operation of the door and information on the surrounding environment By adopting a method of controlling the image to be used, it is possible to improve the effect of advertising to the seller.

1 is an exemplary view showing an example of implementing a digital signage system according to an embodiment of the present invention.
2 is a block diagram illustrating a digital signage system according to an embodiment of the present invention.
3 is an exemplary view showing the shape of a film part in a digital signage system according to an embodiment of the present invention.
4 and 5 are exemplary views for explaining a control operation of a controller when a door is in a closed state in a digital signage system according to an embodiment of the present invention.
6 is an exemplary view illustrating a control operation of a controller when a door is opened in a digital signage system according to an embodiment of the present invention.

Hereinafter, a digital signage system according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of an administrator or operator. Therefore, definitions of these terms should be made based on the contents throughout the present specification.

1 is an exemplary diagram showing an example of implementing a digital signage system according to an embodiment of the present invention, and FIG. 2 is a block diagram illustrating a digital signage system according to an embodiment of the present invention, and FIG. 3 is an exemplary view showing the shape of a film part in a digital signage system according to an embodiment of the present invention, and FIGS. 4 and 5 are a control unit when a door is in a closed state in the digital signage system according to an embodiment of the present invention. FIG. 6 is an exemplary diagram illustrating a control operation of a controller when a door is opened in a digital signage system according to an embodiment of the present invention.

The digital signage system of this embodiment may be implemented in a manner that is applied to a door installed at a vendor that sells a predetermined product or provides a service, as shown in FIG. 1, and the detailed description of the digital signage system of this embodiment First, the structure of the door to which the present embodiment is applied will be described first.

The door (DOOR) may correspond to an entrance door installed at a retailer as shown in FIG. 1, and may correspond to an automatic opening and closing door in which an opening and closing operation is automatically performed by sensing a touch of an object or proximity of an object. That is, the door of the present embodiment may be implemented as an automatic door that opens and closes automatically when a consumer's door touch operation is detected or a consumer approaches within a certain distance from the door. The door touch sensor (or door touch button) required for automatic opening and closing of the door as described above and the proximity sensor (eg, infrared sensor) for object proximity detection are integrated and configured in the sensor unit 400 of the present embodiment to be described later. Alternatively, it may correspond to a configuration included in the door system already installed at the vendor. Likewise, the opening/closing operation of the door may be controlled by the control unit 700 of this embodiment to be described later, or may be controlled by a separate control device included in the door system pre-installed at the vendor. That is, the sensing operation for opening/closing the door and the door opening/closing control operation may be selectively applied to any one of a door system already installed at a vendor or a digital signage system according to the present embodiment according to the implementation.

Based on the structure of the door described above, the digital signage system according to the present embodiment will be described in detail below.

2, the digital signage system according to an embodiment of the present invention includes a film unit 100, a power conversion unit 200, a projection unit 300, a sensor unit 400, a communication unit 500, and a storage unit. It may include a unit 600, a control unit 700, and a manager terminal 800.

The film unit 100 may be installed at least partially (including the concept of attachment) on an openable door installed at a vendor, and the position of the door in which the film unit 100 is installed is not limited to a specific position. That is, the film unit 100 is installed on the inner surface of the door (that is, the door surface facing the interior of the vendor), the outer surface of the door (that is, the door surface facing the exterior of the vendor), or on the inner surface and the outer surface of the door. All may be installed, and may also be installed on a part of the upper part, a part of the lower part of the door, or the entire door surface. In this embodiment, as illustrated in FIG. 1, a case where the film part 100 is installed on a part of the upper part of the outer surface of the door will be described as an example.

The film unit 100 may include a PDLC (Polymer Dispersed Liquid Crystal) film whose state parameter is adjusted according to a driving voltage applied from the power conversion unit 200 to be described later, and instead of a PDLC film, a SPD (Suspended Particle Device) It may also include a film. In the PDLC film, the transparency (which has the same meaning as light transmittance or light reflectance) is adjusted as AC driving voltage is applied. The above-described state parameter may include the transparency of the film unit 100, and a pattern formed according to the difference in transparency for each channel of the film unit 100, and a projected image from the projection unit 300 to be described later are applied to the film unit. It may further include one or more of the projection areas projected to (100).

3 shows an example of the shape of the film unit 100. As shown in FIG. 3, the film unit 100 may be implemented in a structure in which PDLC film unit cells are continuously arranged, and in this case, a channel of the film unit 100 is referred to as It may mean an individual PDLC film unit cell, or a row or column of a PDLC film unit cell. Accordingly, the pattern of the film unit 100 included in the above-described state parameter may mean a pattern formed according to a difference in transparency between PDLC film unit cells, or a pattern formed according to a difference in transparency between columns of a PDLC film unit cell. It can also mean. The control unit 700 to be described later may control the AC driving voltage applied to the film unit 100 through the power converter 200 to adjust the transparency and pattern of the film unit 100.

The power conversion unit 200 may perform a power conversion operation of generating an AC driving voltage for adjusting the transparency of the film unit 100 by stepping down the commercial AC voltage (AC 220V) supplied from the system. To this end, the power conversion unit 200 converts the commercial AC voltage into a DC voltage (eg -50V, 0V, +50V) having a voltage level in the range in which the film unit 100 can be driven (eg: SMPS type AC-DC down converter), and an inverter that converts the DC voltage from the converter into an AC voltage again. The control unit 700 may control the inverter of the power conversion unit 200 to control the driving voltage (or driving current) applied from the inverter to the film unit 100 to adjust the transparency and pattern of the film unit 100. .

The projection unit 300 may project an image stored in the storage unit 600 onto the film unit 100 by controlling its operation by the control unit 700. The installation position of the projection unit 300 may be variously selected within a range in which an image can be projected onto the film unit 100, such as an upper ceiling wall outside the door. The projection unit 300 may be implemented as a projector, and RS-232 communication may be applied as a communication method between the control unit 700 and the projection unit 300.

The sensor unit 400 may detect information on an open/closed state of a door and information on a surrounding environment. The sensor unit 400 may include a magnetic sensor to detect information on the open/close state of the door. In addition, the surrounding environment information sensed by the sensor unit 400 includes the illuminance around the door (e.g., illuminance by sunlight outside the door), the direction of light incident to the door (e.g., the incident direction of sunlight according to the change in the position of the sun). ), and surrounding objects located around the door (eg, consumers near the retailer). The sensor unit 400 includes a CDS sensor for detecting illuminance and light direction, a proximity sensor or infrared sensor for detecting surrounding objects, and a distance sensor for detecting a distance from a door to a surrounding object (eg, an ultrasonic sensor). It may include various sensors such as.

The communication unit 500 can perform wireless communication between the control unit 700 and the manager terminal 800 to be described later, and as a wireless communication method between the control unit 700 and the manager terminal 800, Bluetooth, Wifi, NFC, Zigbee, etc. Various communication methods can be applied. In addition, an RS-232 communication module for communication between the above-described control unit 700 and the projection unit 300 may also be implemented in the communication unit 500.

The control unit 700 interlocks with one or more of the door open/close state information and the surrounding environment information detected by the sensor unit 400, and the state parameter and the projection unit ( One or more of the projected images projected onto the film unit 100 through 300 may be variably controlled.

That is, as described above, in consideration of the fact that the conventional digital signage only repeatedly displays fixed content and its utility is limited, in this embodiment, the state parameter of the film unit 100 and the film unit 100 ) By variably controlling the projected image to improve the usability of digital signage and the advertising effect, and as a standard for variably controlling the state parameter of the film unit 100 and the projected image, information on the opening and closing status of the door and the surrounding environment Hiring information. Accordingly, it is possible to maximize the visual effect of digital media information provided to consumers by forming a visual effect that is actively changed with respect to the opening and closing of the door and the surrounding environment.

The control unit 700 that performs the above functions is implemented as a processor to drive an operating system or an application to control a plurality of hardware or software components connected to the processor, and perform various data processing and operations. According to an embodiment, the processor may be implemented as a system on chip (SoC). The processor may load and process commands or data received from at least one of the other components into a memory, and store various data in the memory.

Hereinafter, the operation of the control unit 700 according to the open/close state of the door will be described in detail.

First, the operation of the control unit 700 when the door is closed will be described.

When it is determined that the door is in the closed state through the magnetic sensor of the sensor unit 400, the control unit 700 controls the transparency of the film unit 100 to a value less than or equal to a predefined reference transparency, or projection A second control of controlling the image as a stored image stored in advance may be performed.

4 shows an example of a state in which the controller 700 performs the first control. In the state in which the first control is performed, the transparency of the film unit 100 may be controlled to a value less than or equal to a predefined reference transparency (eg, 50%). The transparency of the film unit 100 may be controlled to a lower limit (ie, 0%) of a formable transparency range so that the internal view of the film unit 100 may be limited.

On the other hand, as described above, the surrounding environment information of the door detected by the sensor unit 400 may include the illuminance around the door. Accordingly, when the controller 700 performs the first control, the sensor unit 400 The higher the illuminance detected by ), the lower the transparency of the film unit 100 may be. For example, in the case of high illumination outside the retailer, light incident through the door to the interior of the retailer causes discomfort for customers located inside the retailer. Depending on the illuminance, the transparency of the film unit 100 can be actively controlled, and in this case, the higher the illuminance, the more the transparency of the film unit 100 is controlled to a lower value within the range below the above-described reference transparency to enter the retailer. It is possible to effectively prevent customers' discomfort caused by the light.

Further, as described above, the information on the surrounding environment of the door detected by the sensor unit 400 may include a direction of light incident on the door, and accordingly, the controller 700 The transparency of the first channel of the film unit 100 corresponding to the direction is controlled to a value lower than that of the second channel other than the first channel. You can control the transparency to a lower value.

In other words, even when a certain illuminance is formed around the door, there may be cases where light is incident in a specific direction with respect to the door (in that light is incident in a specific direction, the amount of light incident in a specific direction is incident in other directions). It means a case that is larger than the amount of light), a channel of the film unit 100 corresponding to the light direction detected by the sensor unit 400 is defined as a first channel, and channels other than the first channel are defined as a second channel. When defined as, the control unit 700 may effectively block light incident through the door into the vendor according to the direction by controlling the transparency of the first channel to a value lower than that of the second channel. In addition, as the illuminance sensed by the sensor unit 400 increases, the transparency of the first channel may be controlled to a lower value in a range below the reference transparency.

Meanwhile, as described above, the information on the surrounding environment of the door may include surrounding objects (eg, consumers near the retailer) located around the door, and accordingly, the control unit 700 performs a sensor while the first control is maintained. When it is determined that the surrounding object sensed by the unit 400 approaches the door, the first control is stopped and the transparency of the film unit 100 may be controlled to a higher value as the surrounding object approaches the door.

For example, if a consumer near the store is approaching the door, it can be regarded as the case when the consumer enters the store and intends to purchase a product or service, so the consumer visually checks the situation inside the store. Thus, the control unit 700 may stop the first control of controlling the transparency of the film unit 100 to a value equal to or less than the reference transparency so as to determine whether to purchase a product or service, and increase the transparency of the film unit 100. In addition, in order to provide a visual effect to the consumer, a method of controlling the transparency of the film unit 100 to a higher value as the consumer approaches the door may be applied.

Next, FIG. 5 shows an example of a state in which the controller 700 performs the second control. When performing the second control, the control unit 700 can control the projected image projected onto the film unit 100 as a stored image stored in advance, and at the second control, the projected image projected onto the film unit 100 is It may include an advertisement image (still image, moving image, text information, etc.).

That is, when the door is in the closed state, the control unit 700 performs a second control separately from the first control to project a stored image stored in advance for the advertisement of the vendor to the film unit 100, You can induce a purchase.

When performing the second control, the controller 700 may control a state parameter of the film unit 100 in connection with a stored image projected to the film unit 100. That is, the stored image stored in the storage unit 600 may be changed by the administrator, and the stored image projected to the film unit 100 during the second control may be changed according to the situation and viewpoint, not a fixed image. , Considering that a specific transparency, a specific pattern, or a specific projection area of the film unit 100 may need to be premised in order to project and display a specific image on the film unit 100, the control unit 700 It is also possible to control the state parameter of the film unit 100 in connection with the stored image currently projected to (100). In this case, relationship information between the stored image projected to the film unit 100 and the state parameter of the film unit 100 may be predefined in the control unit 700 (or the storage unit 600).

Meanwhile, the above-described first control and second control may be implemented as a configuration that is selectively applied when the door is closed, or may be implemented as a configuration that is changed in time series. That is, an embodiment in which only the first control is performed when the door is closed, an embodiment in which only the second control is performed, or an embodiment in which the first control and the second control are periodically repeatedly switched (e.g., first control → 2 control → 1st control...) can be implemented, which depends on the manager's design and selection.

Next, the operation of the control unit 700 when the door is opened will be described.

When the door is opened, the control unit 700 may control the transparency of the film unit 100 to a value equal to or greater than a predefined reference transparency and stop the image projection operation of the projection unit 300 to the film unit 100. have.

For example, as shown in FIG. 6, when the door opening operation is initiated as the consumer manipulates the door touch sensor or the door touch button, the control unit ( 700) may control the transparency of the film unit 100 to a value equal to or greater than the reference transparency, and in this case, the transparency of the film unit 100 may be controlled to an upper limit (ie, 100%) of the range of transparency that can be formed. In addition, since an image does not need to be projected on the film unit 100 in the open operation state of the door, the control unit 700 can stop the image projection operation of the projection unit 300 to the film unit 100. .

Thereafter, when the door is closed again, the controller 700 may perform the above-described first control or second control again.

Meanwhile, as shown in FIG. 2, the digital signage system of this embodiment may include a manager terminal 800. The manager terminal 800 functions as a remote control terminal for the manager to remotely control the state parameter (ie, transparency, pattern, or projection area) of the film unit 100, and the power conversion unit 200 through the control unit 700 Indirectly controlling the inverter of (when the manager terminal 800 functions as an upper control device for the controller 700), or by directly controlling the inverter of the power conversion unit 200 (the manager terminal 800 is the controller ( In the case of functioning as a control device parallel to 700)), a state parameter of the film unit 100 may be controlled. The manager terminal 800 may correspond to a smart phone, a tablet, a dedicated terminal device, or a PC having an input/output device installed at a vendor. A dedicated application for controlling the state parameter of the film unit 100 may be installed in the manager terminal 800.

The manager terminal 800 performs a function of allowing the manager to manually control the state parameters of the film unit 100, separate from the control operation of the control unit 700 described above. Specifically, the state parameter of the film unit 100 needs to be controlled depending on the projected image projected to the film unit 100, and the film unit 100 corresponding to the projected image to be projected to the film unit 100 When the status parameter is not updated in the above-described relationship information, the manager directly determines the status parameter of the film unit 100 through the manager terminal 800 so that the visual effect of the projected image projected onto the film unit 100 can be secured. Can be controlled.

As described above, the present embodiment describes a method of controlling the transparency of the film or the image projected on the film according to the opening and closing operation of the door and the surrounding environment information in a state in which a film configured to adjust transparency according to the driving voltage is installed on the door of the vendor. By employing it, it is possible to improve the advertising effect to the retailer.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only an example, and those of ordinary skill in the art to which the present technology belongs, various modifications and other equivalent embodiments are possible I will understand. Therefore, the true technical protection scope of the present invention should be determined by the following claims.

DOOR: Door
100: film part
200: power conversion unit
300: projection part
400: sensor unit
500: communication department
600: storage
700: control unit
800: administrator terminal

Claims (11)

A film unit that is installed at least partially on an openable door and has a state parameter adjusted according to an applied driving voltage, wherein the state parameter includes a transparency of the film unit;
A projection unit for projecting an image onto the film unit;
A sensor unit detecting information on an open/closed state of the door and information on surrounding environments; And
The state parameter of the film part adjusted through the control of the driving voltage and a projected image projected to the film part through the projection part in conjunction with one or more of the door opening/closing state information and surrounding environment information detected by the sensor part A controller for variably controlling one or more of them;
Including,
When the door is in a closed state, the control unit performs a first control for controlling the transparency of the film unit to a value equal to or less than a predefined reference transparency, or a second control for controlling the projection image to a stored image stored in advance, and ,
The control unit, when performing the second control, controls a state parameter of the film unit in connection with a stored image projected to the film unit.
The method of claim 1,
The state parameter of the film unit further includes at least one of a pattern formed according to a difference in transparency for each channel of the film unit, and a projection area through which the projected image is projected to the film unit.
delete The method of claim 1,
The surrounding environment information includes illuminance around the door,
When performing the first control, the control unit controls the transparency of the film unit to a lower value as the illuminance sensed by the sensor unit increases.
The method of claim 4,
The surrounding environment information further includes a light direction incident on the door,
The control unit controls the transparency of the first channel of the film unit corresponding to the light direction detected by the sensor unit to a value lower than the transparency of the second channel other than the first channel, detected by the sensor unit. The digital signage system, characterized in that, as the illuminance increases, the transparency of the first channel is controlled to a lower value.
The method of claim 1,
The surrounding environment information includes surrounding objects located around the door,
When it is determined that the surrounding object sensed by the sensor unit approaches the door while the first control is being maintained, the control unit stops the first control and the closer the surrounding object approaches the door, Digital signage system, characterized in that controlling the transparency of the film portion to a higher value.
delete The method of claim 1,
The control unit, when the door is opened, controls the transparency of the film unit to a value equal to or greater than a predefined reference transparency, and stops an image projection operation of the projection unit with respect to the film unit.
The method of claim 1,
The digital signage system further comprising a; manager terminal for remotely controlling the state parameter of the film unit.
The method of claim 1,
The film unit digital signage system comprising a PDLC (Polymer Dispersed Liquid Crystal) film or a SPD (Suspended Particle Device) film.
The method of claim 1,
The door is installed at the retailer and automatically opens and closes by sensing the touch of the object or the proximity of the object, and is an automatic opening and closing door made of a transparent material,
The digital signage system, characterized in that the projection image projected onto the film unit when the door is closed includes an advertisement image of the vendor.

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