JP2018081544A - Display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for controlling the display of a message addressed to a user viewing a display body, in accordance with the intention of the user.SOLUTION: A server device 10 has a message DB for storing messages addressed to runners. The server device 10 acquires positional information, directional information, and the like from a display device 20 and an operating device 30 of a runner (S11 to S15). Then, based on the positional relationship between the runner and display bodies and the directions in which they face, the server device 10 identifies the display body that the runner is seeing (S16 to S18; YES). The server device 10 causes the identified display body to display a message addressed to the runner (S22, S23). Further, the server device 10 detects a remote operation performed by the user while the message addressed to the runner is displayed, and controls the display of the message by the display body.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a technique for displaying a message on a display body.

  Patent Documents 1 and 2 describe a technique for controlling display of a display body based on a situation of a person who views the display. Patent Document 1 describes that characters are displayed in a size determined with respect to the distance between the user and the display screen. Patent Document 2 describes that the granularity of information, the number of information, the scroll speed, the output cycle, and the like are adjusted based on the positional relationship between the display unit of the information output device and the user. Further, Patent Document 3 divides a display area of a display installed in a public place, assigns it to each user of a plurality of users on the content providing side, and displays each user's contents in the assigned display area. It is described to do.

Japanese Patent Laid-Open No. 2003-140632 JP 2006-285157 A JP 2010-211677 A

In the inventions of Patent Documents 1 to 3, the person who sees the display of the display body only browses the displayed information as it is. That is, the person cannot actively control the display of the display body.
On the other hand, an object of this invention is to provide the technique for controlling the display of the message addressed to the user who is looking at the display body according to the intention of the user.

  In order to solve the above-described problems, a display system according to the present invention includes a storage unit that stores a message addressed to a user, a display body specifying unit that specifies a display body that the user is viewing, and the specified display body. A first display control unit that displays the message addressed to the user who is viewing the display body, a remote operation detection unit that detects a remote operation performed by the user during the display of the message addressed to the user, A second display control unit configured to control display of the message based on the detected remote operation.

  The display system of the present invention includes a positional relationship specifying unit that specifies a positional relationship between the display body and the user, and a direction specifying unit that specifies a direction in which the user's face faces. The display body that the user is looking at may be specified based on the positional relationship and the direction in which the user's face faces.

  In the display system of the present invention, the remote operation detection unit grants a user who is viewing the display body an authority to control the display body by the remote operation, and the authority when the predetermined condition is satisfied. May be canceled.

  In the display system according to the aspect of the invention, the remote operation detection unit may perform the remote operation in a period in which a signal obtained by excluding movement that is constantly generated from a signal indicating the movement of the user's body exceeds a predetermined level. May be detected.

  In the display system of the present invention, the second display control unit may display specific information when the display body is provided on a moving body.

  ADVANTAGE OF THE INVENTION According to this invention, the technique for controlling the display of the message addressed to the user who is looking at the display body according to the user's intention can be provided.

The figure which shows the whole structure of the display system which concerns on 1st Embodiment of this invention. The block diagram which shows an example of the hardware constitutions of the server apparatus which concerns on the embodiment, a display apparatus, and an operating device. The block diagram which shows an example of a function structure of the processor of the server apparatus which concerns on the embodiment, a display apparatus, and an operating device. Explanatory drawing of the measuring method of the operation | movement of the runner which concerns on the same embodiment. The figure which shows an example of a structure of message DB which concerns on the same embodiment. Explanatory drawing of the identification method of the display body which the user which concerns on the embodiment is looking at. The sequence diagram which shows the process which concerns on the registration of the message performed with the display system which concerns on the same embodiment. The sequence diagram which shows the process which concerns on the display of the message performed with the display system which concerns on the embodiment. The figure which shows an example of the message displayed on the display body which concerns on the same embodiment. The sequence diagram which shows the process which concerns on the remote control of the display apparatus performed with the display system which concerns on the embodiment. The figure which shows an example of the display control of the message according to the remote operation which concerns on the same embodiment. Explanatory drawing of race DB which concerns on 2nd Embodiment of this invention. The figure which shows an example of the character which can be input according to the remote operation of the runner concerning the embodiment. Explanatory drawing of the detection method of the input character in the display system which concerns on the embodiment. The figure which shows an example of the display control of the message according to the remote operation which concerns on the same embodiment. The figure which shows an example of the message displayed on the display body which concerns on the modification 1 of this invention. The flowchart which shows the process which concerns on the display of the message performed with the display system which concerns on the same invention.

  Hereinafter, the case where the display system of this invention is applied to the system which displays the message addressed to a runner during a marathon competition is demonstrated. That is, the runner corresponds to the “user” of the present invention. Moreover, the display body which displays a message shall be a display body of the display apparatus which a cheerer has.

[First Embodiment]
FIG. 1 is a diagram showing an overall configuration of a display system 1 according to the present embodiment. The display system 1 includes a server device 10, a plurality of display devices 20 (20A, 20B), a plurality of operation devices 30 (30A, 30B), and a plurality of message registration devices 40. Each of these devices performs communication via the network NW. The network NW is a communication line including, for example, the Internet, a wireless communication network, and a gateway device. The plurality of display devices 20 and the plurality of operation devices 30 establish wireless communication paths with the network NW. The server device 10 and the message registration device 40 establish a wired or wireless communication path with the network NW.
In addition, the number of each apparatus shown in FIG. 1 is an example, and any number may exist.

  The message registration device 40 registers a message addressed to the runner in the server device 10. The message registration device 40 is a personal computer, for example, but may be other devices. A user of the message registration device 40 performs an operation for registering a message by specifying a registrant ID, a display body ID, and a runner ID. The registrant ID is an identifier of the user of the message registration device 40. The display body ID is an identifier of the display device 20 (in other words, a display body). The runner ID is a runner identifier. In this embodiment, the runner ID is a bib number assigned to the runner and is represented by a three-digit number. The message is composed of a plurality of characters, but may include icons, photos, and other elements other than characters. The user of the message registration device 40 may specify a plurality of display body IDs and runner IDs at a time and perform an operation for registering a message.

  The server device 10 performs control for displaying a message on the display device 20. Based on the information collected from the display device 20 and the runner 30, the server device 10 determines which message is to be displayed on which display device 20 at which timing.

  The display device 20 displays a message on the display body 261. The display device 20 is a lightweight and small device that can be easily carried by the supporter 210. The display device 20 is a portable display device such as a tablet computer, for example, but may be a display device other than this. The display body 261 is, for example, electronic paper, but may be a liquid crystal display or other display body. The display device 20 of the supporter 210A is referred to as “display device 20A”, and the display device 20 of the supporter 210B is referred to as “display device 20B”.

  The operation device 30 is a device for remotely operating the display device 20. The operating device 30 is a device that is attached to the body part of the runner 310. In the present embodiment, the operating device 30 is a hat-type wearable terminal that is attached to the head of the runner 310. The operation device 30 performs a remote operation based on the movement (gesture) of the head in order to reduce the operation burden on the runner 310. The operation device 30 included in the runner 310A is referred to as “operation device 30A”, and the operation device 30 included in the runner 310B is referred to as “operation device 30B”.

FIG. 2 is a diagram illustrating an example of a hardware configuration of the server device 10, the display device 20, and the operation device 30. The server device 10 is physically configured as a computer device including a processor 11, a memory 12, a storage 13, a communication device 14, an input device 15, an output device 16, a bus 17, and the like.
In the following description, the terms “apparatus” and “apparatus” can be read as a circuit, a device, a unit, or the like. The hardware configuration of the server device 10 may be configured so as to include one or a plurality of the devices illustrated in the figure, or may be configured not to include some devices.

The processor 11 controls the entire computer by operating an operating system, for example. The processor 11 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, and the like.
The processor 11 reads a program (program code), software module, and data from the storage 13 and / or the communication device 14 to the memory 12, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operations described in the above embodiments is used. Although various processes have been described as being executed by one processor 11, they may be executed simultaneously or sequentially by two or more processors 11. The processor 11 may be implemented by one or more chips. The program may be received via a telecommunication line.

  The memory 12 is a computer-readable recording medium and includes, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), and the like. May be. The memory 12 may be called a register, a cache, a main memory (main storage device), or the like.

  The storage 13 is a computer-readable recording medium, such as an optical disc such as a CD-ROM (Compact Disc ROM), a hard disc drive, a flexible disc, a magneto-optical disc (eg, a compact disc, a digital versatile disc, a Blu-ray). (Registered trademark) disk, smart card, flash memory (for example, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like. The storage 13 may be called an auxiliary storage device. The above-described storage medium may be, for example, a database including the memory 12 and / or the storage 13, a server, or other suitable medium.

  The communication device 14 is hardware (transmission / reception device) for performing communication between computers, and is also referred to as a communication module, for example.

The input device 15 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, or the like) that accepts an external input. The output device 16 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside.
Note that the input device 15 and the output device 16 may have an integrated configuration (for example, a touch panel).

  The devices such as the processor 11 and the memory 12 are connected by a bus 17 for communicating information. The bus 17 may be composed of a single bus or may be composed of different buses between devices.

The server device 10 includes hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA). A part or all of each functional block may be realized by the hardware. For example, the processor 11 may be implemented by at least one of these hardware.
Each function in the server device 10 is read by a predetermined software (program) loaded on hardware such as the processor 11 and the memory 12, so that the processor 11 performs an operation to perform communication by the communication device 14, the memory 12 and the storage 13. This is realized by controlling the reading and / or writing of data.

  The display device 20 is physically configured as a computer device including a processor 21, a memory 22, a storage 23, a communication device 24, an input device 25, an output device 26, a bus 27, and the like. The operating device 30 is physically configured as a computer device including a processor 31, a memory 32, a storage 33, a communication device 34, an input device 35, an output device 36, a bus 37, and the like. In FIG. 2, the reference numerals of the hardware elements of the display device 20 and the operation device 30 are shown in parentheses. The hardware of the display device 20 and the operation device 30 may be the same as or different from the hardware configuration with the same name of the server device 10.

FIG. 3 is a block diagram illustrating an example of functional configurations of the processor 11 of the server device 10, the processor 21 of the display device 20, and the processor 31 of the operation device 30.
The processor 21 of the display device 20 includes an information transmission unit 211 and a display control unit 212. The information transmission unit 211 uses the communication device 24 to transmit information necessary for displaying a message to the server device 10. This information includes position information acquired from the positioning device 251 and direction information acquired from the electronic compass 252. The positioning device 251 and the electronic compass 252 are included in the input device 25. The positioning device 251 measures the position of the display device 20 and generates position information indicating the measured position. The positioning device 251 generates position information (latitude information and longitude information) according to, for example, a GPS (Global Positioning System) system. The electronic compass 252 measures the direction (azimuth) that the display device 20 faces, and generates direction information indicating the measured direction. The electronic compass 252 includes a geomagnetic sensor, for example.

  The display control unit 212 displays a message on the display body 261. The display body 261 is included in the output device 26. The display control unit 212 causes the display body 261 to display a message acquired (received) from the server device 10 using the communication device 24. Further, the display control unit 212 controls the display of the display body 261 according to the command acquired using the communication device 24.

  The processor 31 of the controller device 30 includes an information transmission unit 311. The information transmission unit 311 transmits information necessary for displaying a message to the server device 10 using the communication device 34. This information includes position information acquired from the positioning device 351 and direction information acquired from the electronic compass 352. The positioning device 351 measures the position of the operating device 30 and generates position information indicating the measured position. The positioning device 351 and the electronic compass 352 are included in the input device 35. The positioning device 351 generates position information (more specifically, latitude information and longitude information) according to the GPS method, for example. The electronic compass 352 measures the direction (azimuth) that the controller device 30 faces, and generates direction information indicating the measured direction. The electronic compass 352 includes, for example, a geomagnetic sensor.

  In addition, the information transmission unit 311 transmits a remote operation signal for remotely operating the display device 20 to the server device 10 using the communication device 34. In this embodiment, the remote operation signal includes angular velocity data acquired from the angular velocity sensor 353. The angular velocity sensor 353 measures the angular velocity according to the movement of the head (or neck) of the runner 310, and outputs angular velocity data indicating the measured angular velocity. The angular velocity sensor 353 is included in the input device 35. In this embodiment, the movement of the head of the runner 310 is specified by the movement of the head of the runner 310 in the front-rear direction and the lateral direction.

  FIG. 4 is a diagram illustrating a method for measuring the operation of the runner 310. The angular velocity sensor 353 detects the angular velocity in the X-axis direction according to the back and forth movement of the head as shown in the left figure of FIG. 4 and the left and right movement of the head as shown in the right figure of FIG. The corresponding angular velocity in the Y-axis direction is measured. The angular velocity in the X-axis direction and the angular velocity in the Y-axis direction indicate angular velocities according to the movement of the head in the rotational direction around the point O, respectively. The angular velocity in the X-axis direction is positive according to the backward movement of the head, and is negative according to the forward movement. The angular velocity in the Y-axis direction is positive according to the leftward movement of the head, and is negative according to the rightward movement. The angular velocity sensor 353 is, for example, a biaxial angular velocity sensor.

  The acceleration sensor 354 measures the acceleration that has acted on the controller device 30. The acceleration sensor 354 is included in the input device 35. The acceleration sensor 354 is used to estimate whether the running runner 310 moves the head with the intention of remotely operating the display device 20 or moves the head without the intention. While the runner 310 is traveling, a constant acceleration change (for example, a periodic change) occurs in the body of the runner 310. Therefore, the information transmission unit 311 determines that the runner 310 has moved the head with the intention of remote control when the acceleration value obtained by subtracting the steady acceleration change exceeds a certain threshold value. Then, the information transmission unit 311 transmits a remote operation signal to the server device 10 during the period determined as described above.

Returning to FIG. 3, the processor 11 of the server device 10 includes the registration unit 111, the acquisition unit 112, the positional relationship specifying unit 113, the direction specifying unit 114, the display body specifying unit 115, and the first display control unit 116. The remote operation detection unit 117 and the second display control unit 118 are included.
The registration unit 111 registers a message addressed to the runner 310. Specifically, the registration unit 111 acquires a registrant ID, a display body ID, a runner ID, and a message from the message registration device 40 using the communication device 14, and associates them with the message DB 131. Register with. The message DB 131 is an example of the storage unit of the present invention and is included in the storage 13. FIG. 5 is a diagram illustrating an example of the configuration of the message DB 131. In the present embodiment, the display body ID is represented by using the code (20A, 20B) of the display device 20. A plurality of messages addressed to the same runner 310 can be registered in the message DB 131.

  The acquisition unit 112 acquires the information transmitted by the information transmission unit 211 and the information transmitted by the information transmission unit 311 using the communication device 14.

  The positional relationship specifying unit 113 specifies the positional relationship between the display body 261 and the runner 310 based on the information acquired by the acquiring unit 112. The positional relationship is specified by the distance between the position of the display body 261 and the position of the runner 310 and the direction in which one of these is viewed from the other.

  The direction specifying unit 114 specifies the direction in which the runner 310 and the display body 261 face based on the information acquired by the acquiring unit 112.

  The display body specifying unit 115 specifies the display body 261 that the runner 310 is viewing. The display body specifying unit 115 is viewed by the runner 310 based on the positional relationship specified by the positional relationship specifying unit 113, the direction in which the runner 310 specified by the direction specifying unit 114 faces, and the direction in which the display body 261 faces. The display body 261 is specified. As shown in FIG. 6, in the present embodiment, the display body 261 is included and the display body 261 faces within a predetermined angle range T <b> 1 centering on the direction (represented by the arrow Ar <b> 1) toward the runner 310. When the runner 310 is included in a predetermined angle range T2 centered on the direction (represented by the arrow Ar2), it is specified that the runner 310 is viewing the display body 261. Each of the angle ranges T1 and T2 is a fan-shaped range having a radius of L and a central angle of θ. The method for determining the angle ranges T1 and T2 may be other than the method described in FIG.

  The first display control unit 116 causes the display body 261 specified by the display body specifying unit 115 to display a message addressed to the runner 310 watching the display body 261. Specifically, the first display control unit 116 transmits a message associated with the runner ID of the runner 310 to the display device 20 using the communication device 14 based on the message DB 131.

  The remote operation detection unit 117 detects a remote operation performed by the runner 310 while displaying a message addressed to the runner 310. Specifically, the remote operation detection unit 117 acquires (receives) a remote operation signal from the operation device 30 of the runner 310 using the communication device 14, and detects the remote operation based on the remote operation signal. . The remote operation detection unit 117 accepts a remote operation from the runner 310 to which the message is addressed, and accepts only a remote operation from the runner 310 to which the control right is given so as not to accept remote operations from other runners 310. .

The second display control unit 118 controls the display of a message on the display body 261 based on the remote operation detected by the remote operation detection unit 117. Specifically, the second display control unit 118 transmits a command for controlling the display of the display body 261 according to the remote operation to the display device 20 using the communication device 14.
Next, the operation of this embodiment will be described.

<A: Message registration>
FIG. 7 is a sequence diagram showing processing related to message registration executed in the display system 1.
The message registration device 40 transmits the registrant ID, the display body ID, the runner ID, and the message to the server device 10 (step S1). The user of the message registration device 40 designates each piece of information by operating the message registration device 40. This user designates the display body ID of the display device 20 to display the message registered by himself / herself as the display body ID. Moreover, this user designates the runner ID of the runner 310 that he / she wants to support as the runner ID.

The registration unit 111 of the server device 10 registers the acquired message in the message DB 131 in association with the registrant ID, the display body ID, and the runner ID acquired from the message registration device 40 (step S2). It is assumed that the message DB 131 is in the state shown in FIG. 5 by the process of step S2.
Message registration may be done either before or during the marathon competition.

<B: Message display>
FIG. 8 is a sequence diagram showing processing related to message display executed in the display system 1. In the display system 1, the processes described below are sequentially executed during the marathon competition.
The information transmission unit 211 of the display device 20 transmits the display body ID, position information, and direction information of the display device 20 to the server device 10 (step S11). The acquisition unit 112 of the server device 10 acquires the display body ID, the position information, and the direction information transmitted by the information transmission unit 211 (Step S12). The information transmission unit 311 of the controller device 30 determines whether the runner 310 has tilted his / her neck (step S13). The information transmission unit 311 makes this determination based on the angular velocity measured by the angular velocity sensor 353. The runner 310 consciously performs an action of tilting his / her neck when the operation device 30 starts to transmit information in order to display a message addressed to him on the display device 20. When it determines with "YES" by step S13, the information transmission part 311 transmits runner ID, a positional information, and direction information to the server apparatus 10 (step S14). The acquisition unit 112 of the server device 10 acquires the runner ID, the position information, and the direction information transmitted by the information transmission unit 311 (Step S15).

  Next, the positional relationship specifying unit 113 specifies the positional relationship between the display body 261 and the runner 310 (step S16). The position of the display body 261 is specified by the position information acquired from the display device 20. The position of the runner 310 is specified by position information acquired from the operation device 30.

  Next, the direction specifying unit 114 specifies the direction in which the display body 261 faces and the direction in which the runner 310 faces (step S17). The direction in which the display body 261 faces is specified by the direction information acquired from the display device 20. The direction in which the runner 310 faces is specified by the direction information acquired from the operation device 30.

  Next, the display body specifying unit 115 specifies the display body 261 that the runner 310 is looking at (step S18). The display body identification unit 115 identifies the display body 261 that the runner 310 is viewing based on the positional relationship identified by the positional relationship identification unit 113 and the direction identified by the direction identification unit 114. This runner 310 is the runner 310 indicated by the runner ID acquired in step S15. In step S18, the display body specifying unit 115 includes the condition that the runner 310 continues to view the display body 261 for a predetermined time.

  Next, the display body identification unit 115 determines whether or not the display body 261 that the runner 310 is viewing is identified (step S19). If “NO” is determined in the step S19, the process of the display system 1 is returned to the step S11. That is, in the period when the display body 261 that the runner 310 is looking at is not specified, the display system 1 sequentially performs the processes of steps S11 to S19.

  When it determines with "YES" at step S19, the 1st display control part 116 specifies the message addressed to the runner 310 based on message DB131 (step S20). Here, the first display control unit 116 searches the message DB 131 for a message associated with the runner ID acquired in step S5.

Next, the first display control unit 116 determines whether there is a message (step S21). Here, it is assumed that the runner 310A with the runner ID “603” is identified to be viewing the display body 261 of the display device 20A. In this case, the first display control unit 116 specifies a message associated with the runner ID “603”.
In addition, when it determines with "NO" by step S21, the process of the display system 1 is returned to step S11. That is, in the period when the message addressed to the runner 310 is not specified, the display system 1 sequentially performs the processes of steps S11 to S21.

  When it determines with "YES" at step S21, the 1st display control part 116 transmits the specified message to the display apparatus 20 (step S22). Here, the first display control unit 116 sets the display device 20 indicated by the display body ID acquired in step S12 as a message transmission destination. The display control unit 212 of the display device 20 displays the message acquired from the server device 10 on the display body 261 (step S23). When the runner 310A looks at the display body 261 of the display device 20A, for example, a message shown in FIG. 9 is displayed on the display body 261. In FIG. 9, “Mr. A, the game from 30 km! Do your best!” Is displayed as a part of the message. “...” Indicates that there is a continuation in the message. The subsequent message can be displayed by the runner 310A by remotely operating the display device 20 using the operation device 30A.

<C: Display control by remote control>
FIG. 10 is a sequence diagram illustrating processing related to remote operation of the display device 20 executed in the display system 1. It is assumed that the following processing is performed during a period in which a message is displayed on the display device 20.
The information transmission unit 211 of the display device 20 transmits the display body ID, position information, and direction information of the display device 20 to the server device 10 (step S31). The acquisition unit 112 of the server device 10 acquires the display body ID, the position information, and the direction information transmitted by the information transmission unit 211 (Step S32). The information transmitting unit 311 of the operating device 30 transmits the runner ID, position information, and direction information to the server device 10 (step S33). The acquisition unit 112 of the server device 10 acquires the runner ID, the position information, and the direction information transmitted by the information transmission unit 311 (Step S34).

Next, the remote operation detection unit 117 determines whether or not to give the control right of the display device 20 to the operation device 30 (step S35). This operating device 30 is the operating device 30 which the server apparatus 10 acquired runner ID by step S34. The display device 20 is an operation device from which the server device 10 has acquired the display body ID in step S32. The remote operation detection unit 117 determines that the control right of the display body 261 that the runner 310 keeps watching for a certain time is given to the runner 310 (step S35; YES). Then, the remote operation detection unit 117 transmits a notification of granting the control right to the controller device 30 (step S36). In response to this grant notification, the controller device 30 recognizes that the control right has been granted. The operation device 30 may notify the runner 310 of the period during which the control right is being granted by lighting a lamp or the like. In addition, the remote operation detection unit 117 may transmit a notification of granting the control right to the display device 20. In this case, the display device 20 may also notify the runner 310 that the control right has been granted by lighting the lamp or the like.
In addition, when it determines with "NO" at step S35, in the display system 1, the process of step S31-S35 is performed sequentially.

  When the control right is granted, the information transmission unit 311 of the operation device 30 transmits a remote operation signal to the server device 10 according to the movement of the head of the runner 310 (step S37). In the present embodiment, the remote operation signal includes angular velocity data output by the angular velocity sensor 353. The information transmission unit 311 transmits a remote operation signal during a period when the runner 310 determines that the head is moved with the intention of remote operation. In other words, the information transmission unit 311 does not transmit a remote operation signal during other periods.

  Next, the remote operation detection unit 117 detects a remote operation based on the remote operation signal acquired from the operation device 30 (step S38). Then, the remote operation detection unit 117 determines whether a remote operation has been detected (step S39). When the angular velocity indicated by the angular velocity data indicates a predetermined angular velocity (angular velocity pattern), the remote operation detection unit 117 detects a remote operation specified by the angular velocity. Then, the remote operation detection unit 117 issues a command for instructing the detected remote operation and transmits it to the display device 20 (step S40).

The relationship between the movement of the head of the runner 310 and the remote operation (command) is, for example, as follows. The notation “A → B” means that a command instructing “B” is issued for the head movement “A”.
(I) Face up → Go to previous item, face down → Go to next item (ii) Turn right → Scroll backward on the same item, turn left → Scroll forward on the same item (iii) Head right → Enlarge, tilt the neck to the left → Reduce (iv) Turn the neck one turn clockwise → OK, Turn the neck one turn → NG

  The display control unit 212 of the display device 20 controls the display of the message on the display body 261 in accordance with the command acquired from the server device 10 (step S41).

FIG. 11 is a diagram illustrating an example of message display control according to a remote operation.
The first diagram in FIG. 11 shows display control when the runner 310A faces down and performs an operation of designating “next item”. In this example, the display of the display body 261 transitions to the next message. Here, a message “Mr. A, I support you from home!”, Which is the next message addressed to the runner 310A, is displayed as a message. In this state, when the runner 310A faces upward and performs an operation of designating “previous item”, the display returns to the display of FIG. If there is another message, that message is displayed.

  The second diagram of FIG. 11 shows display control when the runner 310A turns to the right and the display of the display body 261 is scrolled backward. Here, a message “Don't forget to rehydrate!” Is displayed as a continuation of the message. When the runner 310A turns to the left and the display of the display body 261 is scrolled forward, the display returns to the display of FIG.

  The third diagram of FIG. 11 shows display control when the runner 310A tilts his / her neck to the right and the display of the display body 261 is enlarged. The fourth diagram in FIG. 11 shows display control when the runner 310A tilts his / her neck to the left and reduces the display of the display body 261. The message can be further enlarged or reduced.

  After determining “NO” in step S39 or when transmitting a command in step S40, the remote operation detection unit 117 determines whether to cancel the remote operation applied to the display device 20 (step S42). After giving the control right of the display device 20 to the runner 310, the remote operation detection unit 117 releases the control right if the predetermined release condition is satisfied. “Release condition” is, for example, that the runner 310 has passed the position of the display body 261. This is specified by a predetermined condition (for example, the distance is equal to or greater than a threshold value). Further, the release condition may be that the runner 310 continuously removes the line of sight from the display body 261 for a predetermined time. Further, the release condition may be an explicit operation (for example, tilting the neck) by the runner 310.

  During the period in which the release condition is not satisfied (step S42; NO), the display system 1 sequentially performs the processes of steps S37 to S42. When the remote operation detection unit 117 determines “YES” in step S42, the remote operation detection unit 117 cancels the grant of the control right. At this time, the remote operation detection unit 117 transmits a cancellation notification to the effect that the control right is canceled to the operation device 30 (step S43). The operating device 30 may notify the runner 310 that the control right has been released by turning off the lamp or the like. In addition, the remote operation detection unit 117 may transmit a release notification to the effect that the grant of control right is released to the display device 20. In this case, the display device 20 may also notify the runner 310 that the grant of authority has been canceled by turning off the lamp or the like.

  According to the display system 1 of 1st Embodiment demonstrated above, the message addressed to the runner 310 which is looking at the display body 261 can be displayed on the display body 261. FIG. The runner 310 can control the display of the message according to his / her intention by remotely operating the display device 20 using the operation device 30. For the runner 310, since the remote operation can be performed by the movement of the head, an excessive operation burden is not imposed. Moreover, since the message addressed to the runner 310 is displayed only during the period when the runner 310 is viewing the display device 20, the message addressed to each of the plurality of runners 310 can be displayed on one display body 261. .

[Second Embodiment]
Next, a second embodiment of the present invention will be described.
The display system of this embodiment is characterized by displaying information according to the remote operation of the runner 310. Hereinafter, a case where information indicating the current situation of the marathon competition is displayed will be described. In this embodiment, the element which attached | subjected the same code | symbol as 1st Embodiment mentioned above functions equivalent to 1st Embodiment mentioned above.

  FIG. 12 is a diagram illustrating the configuration of the race DB. The race DB is a database managed and operated by, for example, a marathon competition organizer. The race DB may be included in the storage 13 or may be provided in an external device of the server device 10. The server apparatus 10 provides information addressed to the runner 310 using the race DB. As shown in FIG. 12, in the race DB, the runner ID of the runner 310, the name of the runner 310 (here, the name), and the section time of the runner 310 every 5 km are recorded in association with each other.

FIG. 13 is a diagram illustrating an example of characters that can be input in accordance with the remote operation of the runner 310. In the present embodiment, numerical values “1” to “9” and “0” may be input according to the movement of the head of the runner 310. In FIG. 13, black circles indicate the start point of head movement (trajectory) when drawing numbers, and triangles indicate the end point. FIG. 14 is a diagram illustrating a method for detecting an input character. As described above, the runner 310 performs an operation of moving the head forward or backward, or moving left or right. Therefore, as shown in FIG. 14, the remote operation detection unit 117 can specify the number input according to the movement of the head of the runner 310 by acquiring the angular velocity data in the X-axis and Y-axis directions.
In the display system of the present embodiment, hiragana, katakana, alphabets, and symbols other than numbers may be input by remote control of the runner 310.

  In the present embodiment, when the runner 310 wants to display information related to the marathon competition on the display body 261, the runner 310 performs a head motion so as to input the runner ID numerically. In step S38, the remote operation detection unit 117 detects a remote operation that designates this number. When a remote operation that specifies a runner ID is detected, the second display control unit 118 identifies race information associated with the runner ID from the race DB and displays the race information on the display body 261 that the runner 310 is viewing. Let FIG. 15 is a diagram illustrating an example of information displayed on the display body 261. In this example, the name “Nakamura” associated with the runner ID “603” and the section time every 5 km are displayed. Here, only the section times of some sections are displayed, but they can be displayed by, for example, the scroll operation described above.

  According to 2nd Embodiment demonstrated above, the server apparatus 10 can display the information which the runner 310 desires based on the information accumulate | stored in race DB.

[Modification]
The present invention may be implemented in a form different from the above-described embodiment. Moreover, you may combine each of the modification shown below.
(Modification 1)
The display device of the present invention may be provided on a moving body. Here, the moving body is a moving body that moves following the runner 310, and is a vehicle such as a bicycle or an automobile. FIG. 16 shows a case where a display body 261 is provided on the back of the vehicle 50 that is accompanied by the runner 310. As shown in FIG. 16, the display body 261 has a display area larger than that of the display body 261 of the display device 20, and the time that the runner 310 can see is longer. Therefore, the server device 10 (first display control unit 116) causes the display body 261 to display specific information. This “specific information” is, for example, information that takes time to browse, and here is detailed race information.

FIG. 17 is a flowchart showing processing related to message display executed in the display system 1.
The first display control unit 116 determines whether or not the display body 261 viewed by the runner 310 is provided on the moving body (step S51). For example, the supporter registers the display body ID and information indicating whether or not the display body is provided on the moving body in the server device 10 in advance. The first display control unit 116 makes the determination in step S51 based on this information. In addition to this, the first display control unit 116 may estimate based on a temporal change in position information of the display body 261 (for example, a temporal change in a moving distance of unit time). Further, the first display control unit 116 may determine whether the display body 261 is moving together with the runner 310. In this case, the first display control unit 116 changes the time information of the position information of the display body 261 and the time information of the position information of the runner 310 (for example, the time change of the relative distance between the display body 261 and the runner 310). ), It may be estimated whether the display body 261 is moving together with the runner 310.

  If “NO” is determined in the step S51, the first display control unit 116 sets the first mode which is a normal display mode (step S52). During the setting of the first mode, the display as described in the above-described embodiment is performed. If “YES” is determined in the step S51, the first display control unit 116 sets the second mode which is a display mode for displaying specific information (step S53). During the setting of the second mode, specific information different from the information described in the above-described embodiment is displayed. In this modified example, as shown in FIG. 16, the first display control unit 116 displays time information (in this case, “++: **” or “− *: *” indicating increase / decrease of the section time from the previous section. * ”Is displayed.

  Note that the “specific information” described here is merely an example. For example, the first display control unit 116 may display only one message addressed to the runner 310 in the first mode, and may display another message simultaneously in the second mode. The other message may be a message addressed to the same runner 310 or a message addressed to another runner 310.

(Modification 2)
In the embodiment described above, the information transmission unit 311 of the controller device 30 allows the runner 310 to control the head for remote operation when the acceleration value obtained by subtracting the steady acceleration change exceeds a certain threshold value. The remote control signal was transmitted because it was judged that the robot had moved. Instead, the information transmission unit 311 may transmit a remote operation signal including angular velocity data and acceleration data to the server device 10 without making this determination. And the remote operation detection part 117 may detect a remote operation signal based on the angular velocity data measured in the period when the value of the acceleration which deducted the change of regular acceleration exceeded a fixed threshold value.

(Modification 3)
The measurement of the operation of the runner 310 in the operation device 30 may be performed not only on the X axis and the Y axis in FIG. 4 but also on an axis different from these. Further, the detection of the remote operation may be performed using not only the angular velocity in the rotation direction of the head of the runner 310 but also the acceleration.

(Modification 4)
The information transmission unit 311 of the operation device 30 according to the embodiment described above causes the runner 310 to move the head with the intention of remote operation when the acceleration value obtained by subtracting the steady acceleration change exceeds a certain threshold. The remote control signal was transmitted. In addition to this, the information transmission unit 311 determines that the runner 310 has moved the head with the intention of remote control when the angular velocity value obtained by subtracting the steady angular velocity change exceeds a certain threshold. Also good. Further, this determination may be made by combining acceleration and angular velocity values.

  The controller device 30 may transmit a command issued based on the angular velocity data to the server device 10 instead of the remote operation signal including the angular velocity data. In this case, the second display control unit 118 of the server device 10 transmits (transfers) this command to the display device 20.

(Modification 5)
The operating device of the present invention is not limited to a hat type. The operation device of the present invention may be a device other than a hat type that detects the movement of the head, such as a hair band type. The operating device of the present invention may be a wearable terminal to be worn other than the head, such as a watch type or a wrist type. In this case, a remote operation corresponding to the hand movement of the runner 310 may be detected. The remote operation may be performed by a method that is not a movement of the body of the runner 310, for example, by voice input.
In the display system of the present invention, remote operation can be detected without using the operation device of the runner 310. For example, a mechanism may be used in which a camera is placed on a marathon competition course, and an image captured by the camera is recognized to detect the movement of the runner 310.

  The present invention can also be applied in addition to displaying a support message to the runner. The present invention can also be applied to a display system using a display device such as a digital signage that is visually recognized by a plurality of people (users).

(Modification 6)
The display device 20 or the operation device 30 may have at least a part of the functions that the server device 10 has in the above-described embodiment. For example, all the functions of the server device 10 may be realized by the display device 20.

(Modification 7)
A part of the configuration or operation described in the above-described embodiment may be omitted. In the present invention, for example, whether or not the runner 310 is looking at the display body may be specified without using the direction information. Further, the position of the display device 20 may be fixed. In this case, the server device 10 can specify the position of the display body 261 and specify the positional relationship without sequentially acquiring the position information from the display device 20.

(Modification 8)
The processing procedures, sequences, flowcharts, and the like of each aspect / embodiment described in this specification may be switched in order as long as there is no contradiction. For example, the methods described herein present the elements of the various steps in an exemplary order and are not limited to the specific order presented.

(Modification 9)
Input / output information or the like may be stored in a specific location (for example, a memory) or may be managed by a management table. Input / output information and the like can be overwritten, updated, or additionally written. The output information or the like may be deleted. The input information or the like may be transmitted to another device.

(Modification 10)
The determination may be performed by a value represented by 1 bit (0 or 1), may be performed by a true / false value (Boolean: true or false), or may be compared with a numerical value (for example, a predetermined value) Comparison with the value).

(Modification 11)
Each aspect / embodiment described in this specification may be used independently, may be used in combination, or may be switched according to execution. In addition, notification of predetermined information (for example, notification of being “X”) is not limited to explicitly performed, but is performed implicitly (for example, notification of the predetermined information is not performed). Also good.

  Although the present invention has been described in detail above, it will be apparent to those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

  Software, whether it is called software, firmware, middleware, microcode, hardware description language, or other names, instructions, instruction sets, codes, code segments, program codes, programs, subprograms, software modules , Application, software application, software package, routine, subroutine, object, executable file, execution thread, procedure, function, etc. should be interpreted broadly. Also, software, instructions, etc. may be transmitted / received via a transmission medium. For example, software may use websites, servers, or other devices using wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave. When transmitted from a remote source, these wired and / or wireless technologies are included within the definition of transmission media.

  Information, signals, etc. described herein may be represented using any of a variety of different technologies. For example, data, commands, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these May be represented by a combination of

  Note that the terms described in this specification and / or terms necessary for understanding this specification may be replaced with terms having the same or similar meaning.

  As used herein, the terms “system” and “network” are used interchangeably.

  In addition, information, parameters, and the like described in this specification may be represented by absolute values, may be represented by relative values from predetermined values, or may be represented by other corresponding information. .

  As used herein, the terms “determining” and “determining” may encompass a wide variety of actions. “Judgment” and “determination” are, for example, judgment, calculation, calculation, processing, derivation, investigating, looking up (eg, table) , Searching in a database or another data structure), considering ascertaining “determining”, “determining”, and the like. In addition, “determination” and “determination” are reception (for example, receiving information), transmission (for example, transmitting information), input (input), output (output), and access. (Accessing) (e.g., accessing data in memory) may be considered as "determined", "determined", and the like. In addition, “determination” and “decision” means that “resolving”, “selecting”, “choosing”, “establishing”, “comparing”, etc. are regarded as “determining” and “determining”. May be included. That is, “determining” and “determining” may include considering any operation as “determining” and “deciding”.

  As used herein, the phrase “based on” does not mean “based only on,” unless expressly specified otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”

  As long as “including”, “comprising” and variations thereof are used in the specification or claims, these terms are inclusive of the term “comprising”. Intended to be Further, the term “or” as used herein or in the claims is not intended to be an exclusive OR.

(Modification 12)
In addition, the block diagram used for description of the said embodiment has shown the block of the functional unit. These functional blocks (components) are realized by any combination of hardware and / or software. Further, the means for realizing each functional block is not particularly limited. That is, each functional block may be realized by one device physically and / or logically coupled, and two or more devices physically and / or logically separated may be directly and / or indirectly. (For example, wired and / or wireless) and may be realized by these plural devices.

DESCRIPTION OF SYMBOLS 1 ... Display system, 10 ... Server apparatus, 11, 21, 31 ... Processor, 111 ... Registration part, 112 ... Acquisition part, 113 ... Positional relationship specification part, 114 ... Direction specification part, 115 ... Display body specification part, 116 ... 1st display control part, 117 ... Remote operation detection part, 118 ... 2nd display control part, 12, 22, 32 ... Memory, 13, 23, 33 ... Storage, 14, 24, 34 ... Communication apparatus, 15, 25, 35 ... Input device, 16, 26, 36 ... Output device, 17, 27,37 ... Bus, 20 ... Display device, 211,311 ... Information transmission unit, 212 ... Display control unit, 251,351 ... Positioning device, 252, 352 ... Electronic compass, 261 ... Display body, 353 ... Angular velocity sensor, 354 ... Acceleration sensor, 30 ... Operating device, 50 ... Vehicle.

Claims (5)

A storage unit for storing messages addressed to the user;
A display body specifying unit for specifying the display body the user is viewing;
A first display control unit configured to display the message addressed to the user who is viewing the display body on the identified display body;
A remote operation detection unit for detecting a remote operation performed by the user during display of the message addressed to the user;
A display system comprising: a second display control unit that controls display of the message based on the detected remote operation. A positional relationship specifying unit for specifying a positional relationship between the display body and the user;
A direction specifying unit for specifying a direction in which the user's face faces;
The display body specifying unit
The display system according to claim 1, wherein the display body that the user is looking at is specified based on the positional relationship and a direction in which the user's face faces. The remote operation detector is
The authority for controlling the display body by the remote operation is given to a user who is viewing the display body, and the grant of the authority is canceled when a predetermined condition is satisfied. The display system according to claim 2. The remote operation detector is
The remote operation is detected during a period in which a signal obtained by excluding movements that are constantly generated from a signal indicating the movement of the user's body exceeds a predetermined level. 4. The display system according to any one of items 3. The second display controller is
The display system according to any one of claims 1 to 4, wherein when the display body is provided on a mobile body, specific information is displayed.

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