KR102147119B1 - Apparauts, method and system for displaying image - Google Patents

Abstract

An apparatus, method and system for displaying an image are provided. A mobile image display apparatus according to some embodiments includes a fixing unit having a means for fixing to a moving means, a display for displaying an image into which a checksum pattern for determining whether a screen is normally output, and the image through the display. And a processor for reproducing the image data to be displayed, and a sensor for detecting an illuminance value of a position at which the checksum pattern is displayed by the display.

Description

Apparatus, method, and system for displaying images TECHNICAL FIELD {APPARAUTS, METHOD AND SYSTEM FOR DISPLAYING IMAGE}

It relates to an apparatus, method and system for displaying images. More particularly, it relates to an apparatus attached to a moving means and displaying an image while moving along the moving means, and a method and system for the apparatus to display an image.

As technologies for display devices for outputting images are developed, devices installed outdoors and displaying digital information are increasing. Digital signage refers to a device for outdoor advertising using a digital information display (DID). Digital signage is installed in subway stations, bus stops, apartment elevators, banks, and other places with a large floating population, and is used to alternately expose still images or videos by time zone.

Regarding digital signage, the user terminal transmits a query to the signage management server based on the information received from the beacon transmission key installed in a specific area, and the signage management server identifies the user terminal to signage terminals near the user terminal. By providing customized content in between, the location-based user-customized target content is stored in digital signage. Digital signage transmits advertisement content to the outside according to a predetermined time in a predetermined manner, or transmits customized advertisement content by recognizing user terminals around digital signage to expose advertisements.

The advertiser must select whether to request advertisement transmission after checking the location of the digital signage where the advertisement is transmitted by visiting the commercial area where the digital signage is installed, and the digital signage outputs the specified content at a fixed location. In addition, with the development of 4G mobile communication technology or wireless LAN technology, it is possible to control an image output by digital signage from a control server through a communication network.

However, due to the nature of digital signage, which is a display device installed outdoors, since it is exposed to various outdoor environments, there may be cases in which an image is not normally output due to a malfunction. For the advertiser who has paid the advertising fee for video output, it is necessary to verify whether or not the video is not exposed as much as the advertisement cost due to a malfunction, even though the desired video is normally output.

The technical problem to be solved is to provide a mobile image display apparatus, method, and system capable of displaying an image while being attached to a moving means and moving to various places regardless of a specific location.

Another technical problem to be solved is to provide a method and apparatus capable of verifying whether an image to be exposed through a mobile image display device is normally output.

Another technical problem to be solved is to provide an image display device with enhanced security so as to prevent an incorrect image from being output due to external intrusion.

Another technical problem to be solved is to provide a method and an apparatus capable of calculating an advertisement cost by calculating an advertisement cost in a case where it is verified whether an image has been output normally.

The technical problems are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above technical problem, a mobile image display apparatus according to some embodiments includes: a fixing unit having a means for fixing to a moving means; A display for displaying an image into which a checksum pattern for determining whether a screen is normally outputted; A processor for reproducing image data so that the image is displayed through the display; And a sensor that detects an illuminance value of a position at which the checksum pattern is displayed by the display.

Further, according to still another exemplary embodiment, the sensor may be located at a lower front portion of a surface on which the image is displayed with respect to the display.

Further, according to still another exemplary embodiment, the mobile image display device may further include a heat sink at an upper end of the display.

In addition, according to still another embodiment, a memory for storing the checksum pattern may be further included, and the processor may update the checksum pattern and insert the checksum pattern stored in the memory into the image data. .

In addition, according to still another embodiment, further comprising a communication unit for receiving from a server the image data for displaying the image and update data for updating the logic installed in the operating system to verify the checksum pattern, the processor A logic installed in the operating system may be executed to determine validity according to the pattern of the illuminance value, and if the pattern of the illuminance value is not valid, playback of the image data may be stopped.

In addition, according to still another embodiment, when the sensor detects the illuminance value, the mobile image display device determines the validity of the illuminance value pattern according to the embedded logic, and the illuminance value pattern is invalid. If not, the microcontroller unit cuts off the power supplied to the display and, if the pattern of the illuminance value is valid, transfers the illuminance value to the processor.

In addition, according to still another embodiment, a communication unit for transmitting and receiving data to and from the server is further included, wherein the processor determines whether to normally output the image based on the illuminance value, and provides information on whether the determined normal output is performed. It can be transmitted to the server through the communication unit.

In order to solve the above technical problem, according to some embodiments, a method of displaying an image using a mobile image display device attached to a moving means includes inserting a checksum pattern for determining whether a screen is normally outputted into image data. ; Reproducing the image data into which the checksum pattern is inserted and displaying an image on the mobile image display device; Detecting an illuminance value of a position at which the checksum pattern is output by means of; And verifying whether or not the screen is normally output based on the detected illuminance value.

In addition, according to some other embodiments, the method of displaying the image may include accumulating and calculating an image output count indicating the number of times the image has been normally output when the verification of whether the image is normally output is successful; And outputting an advertisement cost calculated based on the video output count when the advertisement period set for the video has ended.

In order to solve the above technical problem, a server according to some embodiments includes a processor; And a memory for storing at least one program executed by the processor, wherein the at least one program includes: inserting a checksum pattern for determining whether a screen is normally displayed in a partial area of the image data; Transmitting the image data into which the checksum pattern is inserted to a mobile image display device; Receiving an illuminance value from the mobile image display device; Comparing the pattern of the illuminance value with the checksum pattern to determine whether the pattern of the illuminance value is a normal pattern; And stopping the reproduction of the image of the mobile image display device when the pattern of the illuminance value is not a normal pattern.

1 is a diagram illustrating a system for displaying an image according to some embodiments.
2 is a diagram illustrating a perspective view of a mobile image display device according to some embodiments.
3 is a diagram illustrating a right side view of a mobile image display device according to some embodiments.
4 is a schematic cross-sectional view illustrating positions of a display and an illuminance sensor according to some embodiments.
5 is a diagram illustrating a process in which a server plays an image through a mobile image display device according to some embodiments.
6 is a diagram illustrating a concept for explaining a checksum pattern inserted into an image according to some embodiments.
7 is a diagram illustrating a graph for explaining a checksum pattern according to time inserted into an image, according to some embodiments.
8 is a diagram illustrating a process of displaying an image by a mobile image display device according to some embodiments.
9 is a block diagram schematically illustrating a structure of a mobile image display device according to some embodiments.
10 is a diagram illustrating a process of detecting and blocking an abnormal image displayed by a mobile image display device according to some embodiments.
11 is a diagram illustrating a process of calculating an advertisement cost according to some embodiments.
12 is a schematic cross-sectional view illustrating positions of a display and an illuminance sensor according to another exemplary embodiment.
13 is a diagram illustrating a perspective view of a mobile image display device according to another exemplary embodiment.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments to be posted below, but may be implemented in a variety of different forms, and only these embodiments make the posting of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have it, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used with meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically. The terms used in the present specification are for describing exemplary embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase.

Hereinafter, some embodiments of the present invention will be described with reference to the drawings.

1 is a diagram illustrating a system for displaying an image according to some embodiments.

According to some embodiments, a system for displaying an image may include a server 10 and a mobile image display device 100 capable of communicating with the server 10 through the network 20.

The mobile image display device 100 may be configured in a form that can be attached to a moving means 1 such as a vehicle. For example, the mobile image display apparatus 100 may be configured to have a display on at least one side of a sign indicating that the moving means 1 is a taxi.

2 and 3, a mobile image display apparatus 100 according to some embodiments may include a display 110, an illuminance sensor 120, and a fixing unit 130. In addition, the mobile image display apparatus 100 may further include a processor 170 shown in FIG. 9 therein. The illuminance sensor 120 is an example of a sensor for detecting an illuminance value, and throughout this specification, the illuminance sensor 120 may be replaced with another sensor capable of detecting an illuminance value such as a camera.

The display 110 may display an image when the processor 170 reproduces the image data. For example, the display 110 may include a liquid crystal display (LCD) panel to display an image. The LCD panel may display an image by adjusting the transparency of the LCD and transmitting light emitted from the backlight to the LCD. The backlight includes, for example, a light emitting diode (LED), a cold cathode fluorescent lamp (CCFL), a hot cathode fluorescent lamp (HCFL), a hot cathode fluorescent lamp (HCFL), a surface-conduction electron-emitter display (SED), and It may include any one of field emission display (FED). The LCD panel may include a driving unit for driving a backlight. For another example, the display 110 may include an OLED (organic light emitting diode) panel to display an image. The OLED panel can display an image by emitting the OLED itself. The OLED panel may include, for example, a driving unit for driving the OLED. As another example, the display 110 may include a plasma display panel (PDP) panel to display an image. The PDP panel may display an image by inducing a plasma phenomenon by applying a voltage to an electrode connected to a gas (eg, neon, argon) tube. However, the present invention is not limited thereto, and the display 110 may be configured in another form capable of displaying an image.

The illuminance sensor 120 may be located in front of a surface of the display 110 on which a screen is displayed. The illuminance sensor 120 may detect an illuminance value of a surface on which the screen of the display 110 is displayed. For example, the illuminance sensor 120 may generate a voltage according to the brightness of the light when light is sensed using a photocell or a phototube.

The illuminance sensor 120 may be positioned at a lower front portion of a surface on which an image of the display 110 is displayed, as shown in FIGS. 2 and 3. Since the display 110 is used in various outdoor environments, failure may occur or performance may be deteriorated. For example, in the display 110, a blackening phenomenon in which the screen of the display turns black due to heat generated by use may occur, and an image may not be displayed normally. Here, in order to prevent the performance of the display 110 from deteriorating due to the blackening phenomenon, a heat sink may be installed on the upper part 111 or the lower part 112 of the display 110 shown in FIG. 3. However, it is difficult to install a heat sink at the lower end of the display 110 due to the structure of the mobile image display device 100. Accordingly, an area in which performance degradation or failure of the display 110 is most likely to occur is a lower area of the display 110. Accordingly, the illuminance sensor 120 is positioned at the lower front of the surface on which the image of the display 110 is displayed, as shown in FIGS. 2 and 3, and may detect an illuminance value for detecting whether the image is normally output. .

FIG. 4 is a schematic diagram of a cross section taken along line A-A' of FIG. 3. Referring to FIG. 4, the illuminance sensor 120 may calculate an illuminance value for a checksum area 113 in which a checksum pattern inserted in an image is displayed among portions of a screen displayed on the display 110. In FIG. 4, the illuminance sensor 120 is located at a certain distance from the display 110, but according to the embodiment, the illuminance sensor 120 is in close contact with the display 110, or the illuminance sensor 120 and the checksum area 113 A separate light path may be formed between them.

The fixing unit 130 may include a means for fixing the mobile image display device 100 to the moving means 1 and supporting the mobile image display device 100. For example, the fixing part 130 may be coupled to the upper end of the moving means (1) through a bolt-nut coupling is formed with a pupil at the lower end. However, the present invention is not limited thereto, and the fixing unit 130 may fix the mobile image display apparatus 100 to the moving means 1 using other means such as an adhesive.

5 is a diagram illustrating a process in which a server inserts a checksum pattern into an image and reproduces an image through a mobile image display device, according to some embodiments.

According to some embodiments, the server 10 may register image data to be reproduced through the mobile image display device 100. That is, when an advertiser requests an advertisement through an advertisement image to an operator of the server 10, the operator can register the advertisement image in the server 10.

In step S510, the server 10 may insert a checksum pattern into a partial area of the registered image data. For example, referring to FIG. 6, the server 10 may generate an image 60-2 in which a checksum pattern is inserted in a specific area 61 with respect to the original image 60-1.

Here, the area into which the checksum pattern is input may be determined according to the size, shape, or performance of the display 110 and the illuminance sensor 120 of the mobile image display apparatus 100. For example, the server 10 stores a pattern area table that matches identification information of the mobile image display device 100 and information on a region to which a checksum pattern is to be input, and stores an image to be transmitted to the mobile image display device 100. When entering a checksum pattern in data, the checksum pattern can be input by referring to the pattern area table. For another example, the server 10 searches for the size, shape, or performance of the display 110 and the illuminance sensor 120 of the mobile image display device 100, and an area to input a checksum pattern based on the search result. You can also decide.

In addition, the checksum pattern may be a separate pattern 61 that is distinguished from the original image 60-1 as shown in FIG. 6. However, according to another embodiment, the server 10 is the original image 60- 1) It is also possible to use a pixel of itself or a partial region of the original image 60-1 as a checksum pattern.

According to some embodiments, as illustrated in FIG. 7, the checksum pattern may be that white pixels or black pixels are alternately inserted over time in a region into which the checksum pattern is inserted. In addition, according to some embodiments, the checksum pattern may be generated based on a first rule set not to be changed in the server 10 and a second rule set to be updateable. For example, the first rule may be to maintain a white pixel for 1 second when a white pixel is inserted, and the second rule may be to set a pattern in which time points at which the white pixel starts to be inserted are repeated.

Thereafter, in step S520, the server 10 may transmit the image data into which the checksum pattern is inserted to the mobile image display apparatus 100. A method of transmitting image data to the mobile image display apparatus 100 may be configured in various ways according to exemplary embodiments. For example, the server 10 may transmit an image to be reproduced in real time through a streaming method, or may transmit an image data file.

According to some embodiments, when receiving an image transmission request from the mobile image display device 100, the server 10 may transmit image data to the mobile image display device 100 in response to the image transmission request.

Alternatively, according to some other embodiments, the server 10 may receive location information on the mobile image display device 100 from the mobile image display device 100. In addition, the server 10 may set information on a location to reproduce the image data for the image data registered in the server 10. The server 10 may transmit the image data to the mobile image display device 100 when there is image data for which location information corresponding to the location information received from the mobile image display device 100 is set.

Thereafter, information on the illuminance value may be received from the mobile image display device 100 that has transmitted the image data in step S530. The server 10 may compare the pattern of the illuminance value received in step S540 with the checksum pattern inserted in the image data transmitted to the mobile image display apparatus 100. Here, according to some embodiments, when the pattern of the illuminance value satisfies the rule used to generate the checksum pattern, the server 10 may determine that the pattern of the illuminance value is a normal pattern. For example, when a white pixel is output in the checksum area, a relatively high illuminance value may be detected by the illuminance sensor 120 compared to other viewpoints. Accordingly, the server 10 may determine that the pattern of the illuminance value is a normal pattern when the similarity of the pattern indicated by the point at which the white pixel is inserted into the checksum area of the image data and the point at which the high illuminance value is detected is greater than or equal to the threshold value .

If the pattern of the illuminance value is a normal pattern in step S550, the server 10 may continue to transmit image data in step S520.

If the pattern of the illuminance value is not the normal pattern, the server 10 may stop playing the image of the mobile image display apparatus 100 in step S560. For example, when the mobile image display apparatus 100 is playing an image in a streaming method, the server 10 may stop transmitting image data. For another example, when an image stored in the mobile image display device 100 is being played, the server 10 may transmit a command to stop playing the image to the mobile image display device 100.

8 is a diagram illustrating a process of inserting a checksum pattern into an image and displaying an image by a mobile image display device according to some embodiments.

First, in step S810, the mobile image display device 100 may determine whether to update a checksum pattern stored in the mobile image display device 100. For example, the version information of the checksum pattern stored in the mobile image display device 100 and the version information of the checksum pattern set in the server 10 may be checked, and if the version information does not match, it may be determined that an update exists. .

Thereafter, when it is determined in step S820 that an update of the checksum pattern exists, in step S825, the mobile image display apparatus 100 may perform an update of the checksum pattern.

According to an embodiment, steps S810 to S825 may be replaced with a process of updating an updatable rule among rules for generating a checksum pattern rather than the checksum pattern itself.

Thereafter, in step S830, the mobile image display apparatus 100 may request image data from the server 10. Here, the mobile image display apparatus 100 may transmit a request for image data to the server 10 when the image data reproduction condition is satisfied. Image data reproduction conditions may be set in various ways according to embodiments. For example, when location information to display an image is set on the mobile image display device 100, the mobile image display device 100 obtains location information and set location information obtained using a GSP sensor or a wireless LAN AP. It may be compared to determine whether to transmit a request for image data. In this case, the mobile image display device 100 may transmit the acquired location information to the server 10 to receive image data according to the location of the mobile image display device 100 from the server 10.

According to another embodiment, in step S830, the mobile image display device 100 may transmit information indicating the context of the mobile image display device 100 to the server 10, not a separate request. For example, the mobile image display device 100 may store information about the location of the mobile image display device 100 or information about the number, types, and weather of other devices sensed around the mobile image display device 100. ), the server 10 may transmit the image data selected according to the result of analyzing the received information to the mobile image display device 100 by the mobile image display device 100.

Thereafter, in step S840, the mobile image display device 100 may insert a checksum pattern stored in the mobile image display device 100 into the image data received from the server 10. According to another embodiment, when a rule for generating a checksum pattern is stored, the mobile image display apparatus 100 may generate a checksum pattern according to the stored rule and insert the generated checksum pattern into the image data.

According to some embodiments, when the video player installed in the mobile video display device 100 checks whether the content is legitimate according to Digital Right Management (DRM) applied to the received image data, and then determines that the content is legitimate, One year step S840 may be performed.

Thereafter, in step S850, the mobile image display apparatus 100 may reproduce the image data into which the checksum pattern is inserted so that the image is displayed through the display 110.

9 is a block diagram schematically illustrating a structure of a mobile image display device according to some embodiments.

The mobile image display device 100 according to some embodiments includes a processor 170 that inserts a checksum pattern into image data, plays the image data into which the checksum pattern is inserted, and controls components of the mobile image display device 100, It may include a display 110 that displays an image in which a checksum pattern is inserted, and an illuminance sensor 120 that detects an illuminance value at a position on the display 110 where the checksum pattern is displayed.

The mobile image display apparatus 100 may further include a micro controller unit (MCU) 140 connected to the illuminance sensor 120 to receive an illuminance value. The microcontroller unit 140 may receive an illuminance value from the illuminance sensor 120 and transmit it to the processor 170. The microcontroller unit 140 is separated from a board on which the processor 170 is mounted, and may be provided on a board on which the illuminance sensor 120 is mounted. However, this is not distinguished, and according to another embodiment, the microcontroller unit 140 may be configured with the processor 170 and one piece of hardware.

According to some embodiments, the microcontroller unit 140 may be embedded in the mobile image display apparatus 100 to execute logic for determining validity according to a pattern of an illuminance value. Here, the logic embedded in the microcontroller unit 140 cannot be arbitrarily changed. Therefore, even if hacking is attempted, external intruders cannot change it.

In addition, when the checksum pattern inserted in the image data is generated based on a first rule set not to be changed and a second rule set to be updateable, the logic embedded in the microcontroller unit 140 is the first It may be logic to determine whether the pattern of the illuminance value is valid according to a rule. For example, if the first rule is to maintain a white pixel for 1 second when a white pixel is inserted, when an illuminance value is input to the logic embedded in the microcontroller unit 140, the illuminance value above the threshold is maintained. It can be determined whether the pattern of the illuminance value is a normal pattern according to whether the period is within a certain range from 1 second. However, it is not limited thereto.

When it is determined that the pattern of the illuminance value is not an abnormal pattern according to the embedded logic, the microcontroller unit 140 may cut off the power supplied from the power supply unit 160 to the display device 110. For example, when the switch 150 is provided in the path for supplying power from the power supply unit 160 to the display 110, the microcontroller unit 140 controls the switch 150 to display the display 110. It can cut off the power supplied. For another example, the microcontroller unit 140 may transmit a command to the power supply unit 160 to cut off power supplied to the display 110. However, the method of cutting off the power supplied to the display 110 is not limited thereto.

When the pattern of the illuminance value is determined to be a normal pattern according to the embedded logic, the microcontroller unit 140 may transmit the illuminance value to the processor 170. The processor 170 may control each component of the mobile image display apparatus 100. In addition, the processor 170 may execute an operating system for operating the mobile image display device 100. The processor 170 may display an image including a checksum pattern through the display 110 by reproducing the image data received from the server 10. Here, the processor 170 may insert a checksum pattern into the image data, or may receive image data into which the checksum pattern is inserted by the server 10 from the server 10.

The processor 170 may determine whether the pattern of the illuminance value is normal, that is, validity, by executing logic installed in the memory 190 based on the operating system of the mobile image display apparatus 100. Here, the logic installed based on the operating system may be updateable from the server 10. When the checksum pattern inserted in the image data is generated based on the first rule that cannot be changed and the second rule set to be updateable, the logic installed based on the operating system is the pattern of the illuminance value based on the second rule. It may be to determine whether it is normal or not.

The memory 190 may store a program including instructions for executing an operation of the mobile image display apparatus 100. The mobile image display apparatus 100 may include one or more memories 190 such as RAM, flash memory, hard disk, solid state disk (SSD), or ROM. In this specification, the memory 190 means to include at least one of a temporary storage medium and a non-transitory storage medium.

According to some embodiments, the memory 190 may store a checksum pattern to be inserted into an image or a rule for generating a checksum pattern. The checksum pattern stored in the memory 190, the rule for generating the checksum pattern, and the logic for verifying the updateable checksum pattern may be updated under the control of the processor 170.

The communication unit 180 may transmit data to the server 10 or receive data from the server 10 under the control of the processor 170. For example, the communication unit 180 may include a mobile communication module, a short-range wireless communication module, or a wireless LAN module. In addition, when it is determined that the checksum pattern of the image output by the microcontroller unit 140 or the processor 170 is not normal, the communication unit 180 indicates that the output of the image to the server 10 is not normally performed. Information can be transmitted.

In addition, when the mobile image display apparatus 100 according to some embodiments stores the checksum pattern in the memory 190 and inserts it into the image, the communication unit 180 receives information for updating the checksum pattern from the server 10. can do.

According to some other embodiments, the mobile image display apparatus 100 may transmit information on the illuminance value to the server 10 without directly determining whether the pattern of the illuminance value is a normal pattern. In this case, the server 10 may control the image reproduction of the mobile image display apparatus 100 by determining whether the pattern of the illuminance value is normal.

10 is a diagram illustrating a process of detecting and blocking an abnormal image displayed by a mobile image display device according to some embodiments.

The mobile image display device 100 may reproduce image data provided from the server 10. Thereafter, in step S1010, the mobile image display apparatus 100 may detect an illuminance value using the illuminance sensor 120. The illuminance value sensed by the illuminance sensor 120 may be transmitted to the microcontroller unit 140.

Thereafter, in step S1020, the mobile image display apparatus 100 may determine the validity of the illuminance value according to the embedded logic. That is, the mobile image display apparatus 100 may determine whether the pattern of the illuminance value is a normal pattern. Here, the embedded logic may be hardware fixed so that it cannot be arbitrarily changed.

According to some embodiments, when the checksum pattern inserted into the image data is generated based on a first rule set not to be changed and a second rule set to be updateable, the embedded logic is based on the first rule. It may be logic that determines whether the pattern of the illuminance value is valid. For example, if the first rule is to keep the white pixel for 1 second when a white pixel is inserted, the mobile image display device 100 maintains an illuminance value equal to or greater than the threshold value when an illuminance value is input to the embedded logic. It can be determined whether the pattern of the illuminance value is a normal pattern according to whether the period of time is within a certain range from 1 second. However, the method of determining the validity of the illuminance value using the embedded logic is not limited thereto.

Thereafter, when it is determined in step S1030 that the pattern of the illuminance value is not a normal pattern, the mobile image display apparatus 100 may cut off power supplied to the display in step S1035. According to some embodiments, step S1035 may be performed by hardware-configured logic that cannot be changed even if there is a hacking attack.

If it is determined that the pattern of the illuminance value is a normal pattern according to the embedded logic in step S1030, the mobile image display device 100 is configured according to the updateable logic installed based on the operating system of the mobile image display device 100 in step S1040. The validity of the illuminance value can be judged. Here, the logic installed based on the operating system may be updateable from the server 10. When the checksum pattern inserted in the image data is generated based on the first rule that cannot be changed and the second rule set to be updateable, the logic installed based on the operating system is the pattern of the illuminance value based on the second rule. It may be to determine whether it is normal or not.

When it is determined that the pattern of the illuminance value is a normal pattern as a result of executing the logic installed based on the operating system in step S1050, the mobile image display device 100 continues to play the image and repeats step S1010 to ensure that the image is normal. You can monitor the playback.

If it is determined in step S1050 that the pattern of the illuminance value is not the normal pattern, in step S1060 the mobile image display apparatus 100 may stop playing the image being played. Here, the mobile image display apparatus 100 may stop reproducing the image through a software operation. However, it is not limited thereto.

11 is a diagram illustrating a process of calculating an advertisement cost according to some embodiments. The process illustrated in FIG. 11 may be performed by at least one of the server 10 and the mobile image display device 100 included in the system for displaying an image.

First, in step S1110, the system may verify whether an image is normally output. Here, the normal output fisherman of the image may be performed by executing the process shown in FIG. 5 or the process shown in FIG. 10. Alternatively, it may be performed according to another embodiment included in the scope of the inventive concept using a checksum pattern and an illuminance value.

In addition, according to some embodiments, in order to verify whether the image is normally output, the system determines the ratio of the time in which the pattern of the detected illuminance value to the reproduction time of the image data is determined to be a normal pattern. Can be calculated. The system may determine that the image is normally output only when the calculated ratio is greater than or equal to the threshold value. The total playback time of the image data may be included in the metadata of the image data.

Thereafter, when the verification is successful that the image is normally output in step S1120, the system may accumulate and increase the image output count. Here, the image output count may have a value indicating the number of times the image is normally output.

Thereafter, in step S1140, the system may determine whether the advertisement period for the reproduced video has ended. The video data registered in the server 10 may have an advertisement period requested by an advertiser, respectively. When the advertisement period for the reproduced video is ended, the system may calculate an advertisement cost based on the video output count accumulated in step S1150 and output the calculated advertisement cost. For example, if the system attempts to play a video 10 times, the number of times the video is verified to have been normally output is 7 times, and the advertisement cost per video exposure is 10,000 won, the system has a final advertisement cost of 7 You can print it out as full.

Alternatively, according to some other embodiments, the advertisement cost per number of times of exposure of the image may be differently set according to the time or location at which the image is played. In this case, the server 10 may receive at least one of time information and location information of a time point at which an image is reproduced from the mobile image display device 100. Here, the server 10 may calculate the advertisement cost based on at least one of the time information and the location information received in step S1150.

According to another exemplary embodiment, the system may calculate the advertisement cost according to the number of mobile communication terminals (not shown) located around the mobile image display device 100 at the time the image is played. In this case, the mobile image display device 100 uses short-range wireless communication (eg, Wi-Fi communication) through a short-range wireless communication module (not shown) provided in the mobile image display device 100 when reproducing an image. Thus, it is possible to search for connectable mobile communication terminals and calculate the number of searched mobile communication terminals. The system may calculate an advertisement cost according to the number of mobile communication terminals calculated by the mobile image display apparatus 100.

Although the shape of the mobile image display device 100 is illustrated in FIGS. 2 to 4, the shape of the mobile image display device 100 may be changed within a range for implementing the inventive concept according to some other embodiments. For example, referring to FIGS. 12 and 13, the position of the illuminance sensor 110 may be arranged to detect an illuminance value for a wider area of the display 110 rather than a lower part of the display 110. have.

The methods according to the embodiments of the present invention described so far can be performed by executing a computer program implemented in computer-readable code. The computer program may be transmitted from a first computing device to a second computing device through a network such as the Internet and installed in the second computing device, thereby being used in the second computing device. The first computing device and the second computing device include all of a server device, a physical server belonging to a server pool for cloud services, and a fixed computing device such as a desktop PC.

The computer program may be stored in a recording medium such as a DVD-ROM or a flash memory device.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features. I can understand. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting.

Claims (10)

A fixing portion having a means capable of being fixed to the moving means;
A display for displaying an image into which a checksum pattern in which the colors of pixels alternate according to time for determining whether a screen is normally outputted is inserted;
A processor for reproducing image data so that the image is displayed through the display; And
A sensor for detecting an illuminance value of a position at which the checksum pattern is displayed by the display; and
The processor may determine whether the pattern of the illuminance value is a normal pattern by comparing an illuminance value detected in the image in which the checksum pattern is displayed with a checksum pattern inserted into the image,
The checksum pattern,
The checksum pattern is generated based on a first rule set not to be changed and a second rule set to be updateable, wherein the checksum pattern is alternately inserted with white pixels or black pixels according to time,
The processor,
If the checksum pattern is generated based on the first rule, the normal pattern of the pattern of the illuminance value according to the first rule is determined, and if the checksum pattern is generated based on a second rule set to be updateable, the second rule To determine the normal pattern of the pattern of the corresponding illuminance value,
Mobile video display device. The method of claim 1,
The sensor,
Located in the front lower part of the surface on which the image is displayed with respect to the display,
Mobile video display device. The method of claim 2,
Further comprising a heat sink at the upper end of the display,
Mobile video display device. The method of claim 1,
Further comprising a memory for storing the checksum pattern,
The processor is
Updating the checksum pattern and inserting the checksum pattern stored in the memory into the image data,
Mobile video display device. The method of claim 1,
Further comprising a communication unit for receiving from the server the image data for displaying the image and update data for updating the logic installed in the operating system to verify the checksum pattern,
The processor,
Executing a logic installed in the operating system to determine validity according to the pattern of the illuminance value, and stopping the reproduction of the image data when the pattern of the illuminance value is not valid,
Mobile video display device. The method of claim 5,
When the sensor detects the illuminance value, it determines the validity according to the illuminance value pattern according to the embedded logic, and if the illuminance value pattern is not valid, cuts off the power supplied to the display, and the illuminance value pattern Further comprising a microcontroller unit for transmitting the illuminance value to the processor if is valid,
Mobile video display device. The method of claim 1,
Further comprising a communication unit for transmitting and receiving data with the server,
The processor,
Determining whether to normally output the image based on the illuminance value, and transmitting information on whether or not the determined normal output to the server through the communication unit,
Mobile video display device. In the method of displaying an image using a mobile image display device attached to a moving means,
Insert a checksum pattern in which the color of pixels alternates according to time to determine whether the screen is normally displayed, but the checksum pattern is a first rule set so that the checksum pattern is not changed and updateable. Generated based on a set second rule, wherein the checksum pattern includes alternately inserting white pixels or black pixels according to time;
Reproducing the image data into which the checksum pattern is inserted and displaying an image on the mobile image display device;
Detecting an illuminance value of a position at which the checksum pattern is output by means of;
Verifying whether the screen is normally output based on the detected illuminance value;
The step of verifying whether the normal output is performed,
Determine whether the pattern of the illuminance value is a normal pattern by comparing the illuminance value detected in the area where the checksum pattern is displayed in the image with a checksum pattern inserted into the image, and the checksum pattern is generated based on a first rule If the checksum pattern is generated based on the second rule set to be updateable, the normal pattern of the pattern of the illuminance value according to the second rule is determined. Comprising steps,
Video display method. delete Processor; And
Including a memory for storing at least one program executed by the processor,
The at least one program,
A checksum pattern in which colors of pixels alternate according to time for determining whether or not the screen is normally displayed is inserted in a partial area of the image data, wherein the checksum pattern includes a first rule set such that the checksum pattern is not changed. Generated based on a second rule set to be updatable, wherein the checksum pattern includes alternately inserting white pixels or black pixels according to time;
Transmitting the image data into which the checksum pattern is inserted to a mobile image display device;
Receiving an illuminance value from the mobile image display device;
Compare the pattern of the illuminance value with the checksum pattern to determine whether the pattern of the illuminance value is a normal pattern, but compare the illuminance value detected in the image in which the checksum pattern is displayed with the checksum pattern inserted into the image To determine whether the pattern of the illuminance value is a normal pattern. When the checksum pattern is generated based on the first rule, a second pattern of the pattern of the illuminance value according to the first rule is determined, and the checksum pattern is set to be updateable. Determining a normal pattern of the pattern of the illuminance value according to the second rule when generated based on the rule; And
If the pattern of the illuminance value is not a normal pattern, stopping the reproduction of the image of the mobile image display device; including instructions to perform,
server.

Images