JP2012177769A - Cooperative display system, cooperative display method, and portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user of a portable terminal to easily execute display of a huge image and a mass game.SOLUTION: A cooperative display system has: a master terminal 1 and slave terminals 2. The respective portable terminals have: azimuth sensors 41, 62; distance sensors 32, 52; communication function parts 30, 50; and display parts 42, 63. The master terminal 1 divides display data 11 constituting one picture into a plurality of pieces of divided display data 12, determines positions where the respective slave terminals 2 should exist based on detection results of the azimuth sensors 41, 62, and the distance sensors 32, 52 so that the pieces of divided display data 12 are displayed on a plurality of other slave terminals 2, respectively, instructs movement to the determined positions to the respective slave terminals 2, and instructs that the pieces of divided display data 12 are transmitted to the respective slave terminals 2 to be displayed.

Description

  The present invention relates to a cooperative display system, a cooperative display method, and a mobile terminal, and particularly to a large-scale cooperative display technique using a plurality of mobile terminals.

  A technique for semi-automatically displaying a huge image and a mass game using a plurality of terminal devices is known. As a technique related to the present invention, for example, Patent Document 1 displays a large image by disassembling one image into a plurality of pixels and displaying each image on a display surface of a mobile terminal for each one or a plurality of pixels. A synchronous video playback system is disclosed. Further, for example, Patent Document 2 discloses a mass game support system for performing accurate performance support according to the position of each performer of the mass game.

Japanese Patent No. 4483180 Japanese Patent No. 3448027

  However, the above-described technique requires a communication server as a system component in addition to a terminal. For this reason, the scale as a system becomes large. In addition, since GPS is used to detect the position of each terminal, there is a problem that positioning with high accuracy is not possible and positioning is not possible indoors. As exemplified in Patent Document 2, it may be possible to detect the position without using GPS, but in Patent Document 2, an IC tag is required instead of GPS, and a large-scale device is required. Necessary. For this reason, it was not easy to implement without choosing a place.

  Therefore, an object of the present invention is to solve these problems, and to provide a linked display system, linked display method, linked display program, and portable terminal that enable a user of a portable terminal to easily display a huge image and a mass game. Is to provide.

  The cooperative display system which concerns on the 1st aspect of this invention performs communication between the direction sensor which detects the direction between portable terminals, the distance sensor which detects the distance between the said portable terminals, and the said portable terminals A plurality of portable terminals each having a communication function unit and a display unit for displaying an image, one of the plurality of portable terminals serving as a master terminal, and the other plurality of portable terminals serving as slave terminals And the master terminal divides the display data constituting one screen into a plurality of divided display data and displays the divided display data on the plurality of other slave terminals, respectively. On the basis of the detection result of each of the slave terminals, the slave terminal is instructed to move to the determined position, and the divided display data is An instruction to display sends the slave terminal.

  The cooperative display method according to the second aspect of the present invention includes a direction sensor that detects a direction between mobile terminals, a distance sensor that detects a distance between the mobile terminals, and communication between the mobile terminals. A linked display method in a linked display system including a plurality of portable terminals having a communication function unit and a display unit that displays an image, wherein any one of the plurality of portable terminals is a master terminal; The plurality of other portable terminals are set as slave terminals, and the master terminal divides display data constituting one screen into a plurality of divided display data, and the divided display data is divided into the other plurality of slave terminals. In order to display each, the position of each slave terminal should be determined based on the detection results of the direction sensor and the distance sensor, and the movement to the determined position is determined Instructs the slave terminal, an instruction to display sends the divided display data to each of said slave terminals.

  A mobile terminal according to a third aspect of the present invention is an orientation sensor that detects an orientation between the mobile terminals using the mobile terminal as a master and a plurality of mobile terminals as slave terminals among the plurality of mobile terminals. And a distance sensor that detects a distance between the portable terminals, a communication function unit that performs communication between the portable terminals, and a display unit that displays an image. In order to divide into a plurality of divided display data and display the divided display data on each of the other plurality of slave terminals, the position where each slave terminal should be based on the detection results of the direction sensor and the distance sensor is determined. The slave terminal is instructed to move to the determined position, and instructed to transmit and display the divided display data to each of the slave terminals.

  ADVANTAGE OF THE INVENTION According to this invention, the user of a portable terminal can provide the cooperation display system, the cooperation display method, and portable terminal which can implement a huge image display and mass game easily.

1 is an overall configuration diagram of a cooperative display system according to a first exemplary embodiment. It is a figure which shows the example of a movement of a positional info matrix and each portable terminal. It is a flowchart which shows the operation | movement procedure of a Master terminal and a Slave terminal. It is a figure which shows the example of a display at the time of using a frame sequential system. It is a figure which shows the example of a movement process operation | movement of each portable terminal. It is a flowchart which shows the calculation procedure of the movement distance to a target position, and a movement angle. It is a figure for demonstrating the calculation method of the movement distance to a target position, and a movement angle. It is a whole block diagram of the cooperation display system concerning Embodiment 2. It is a figure for demonstrating the principle of this invention.

  Prior to the description of the embodiment of the present invention, the principle of the present invention will be briefly described with reference to FIG. As shown in FIG. 9, the cooperative display system according to the present invention includes a plurality of portable terminals (Master terminal 1 and Slave terminal 2). Here, one of the plurality of portable terminals is set as a master terminal 1 as a master, and the other plurality of portable terminals are set as slave terminals 2.

  In addition, each mobile terminal performs communication between the mobile terminals and the direction sensors 41 and 61 that detect the direction between the mobile terminals, the infrared devices 32 and 52 as distance sensors that detect the distance between the mobile terminals. Communication function units 30 and 50 to perform, and main LCDs 42 and 62 as display units for displaying images.

  The master terminal 1 divides display data 11 constituting one screen into a plurality of divided display data 12. And the master terminal 1 determines the position which each slave terminal 2 should be based on the detection result of an azimuth | direction sensor and a distance sensor, in order to display the division | segmentation display data 12 on several other slave terminals 2, respectively. Then, the master terminal 1 instructs each slave terminal 2 to move to the determined position, and instructs each slave terminal 2 to transmit and display the divided display data 12.

  According to the cooperative display system shown in FIG. 9, a huge display can be easily realized by linking a plurality of portable terminals. The cooperative display system can be used, for example, for reproduction of huge still images / moving images, support in a stadium, mass games, and the like. It can also be used to display a rescue signal in the event of a distress. It can also be used for performances at large events where many people gather.

  Further, the display is not limited to the two-dimensional display, and a three-dimensional display can be used. For example, the mobile terminal is synchronized with the wireless LAN, and a three-dimensional display is enabled by using a frame sequential method.

  In addition, when positioning multiple mobile terminals, using an infrared device and a direction sensor instead of GPS enables high-precision positioning without installing a large-scale device. The position of the portable terminal can be determined even indoors where there is no room.

  Further, when a mobile phone terminal is used as a mobile terminal, a mobile phone device owned by the user can be used as it is, and a cooperative display system can be realized more easily.

Embodiment 1 FIG.
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall configuration diagram of a cooperative display system according to the present embodiment. As illustrated in FIG. 1, the cooperative display system according to the present embodiment is illustrated as a master terminal 1 and a plurality of slave terminals 2 (in the figure, a slave terminal 1, a slave terminal 2,..., A slave terminal X). ). The master terminal 1 and the slave terminal 2 are mobile terminal devices (for example, mobile phone terminals) carried by the user.

  The master terminal 1 determines a display image displayed using a mobile terminal included in the cooperative display system and a display position of the mobile terminal when each mobile terminal displays a display image. The master terminal 1 includes a display data division processing unit 10, a terminal position information processing unit 20, a communication function unit 30, and various device units 40.

  The display data division processing unit 10 divides an image according to the number of available slave terminals 2. The display data division processing unit 10 divides an image constituting one screen into a plurality of images. The display data division processing unit 10 has a display data division function 13 that divides the display data 11 and generates divided display data 12.

  The terminal position information processing unit 20 calculates terminal position data 21 used to align the mobile terminals according to the number of available slave terminals 2. The terminal position information processing unit 20 has a terminal position calculation function 22 that calculates terminal position data 21 that defines the positions of the master terminal 1 and the slave terminal 2. Further, the terminal position calculation function 22 calculates the position of the Master terminal 1. The details of the procedure for arranging the mobile terminals will be described later.

  In the present embodiment, the terminal position information processing unit 20 creates a position information matrix corresponding to the display data division result as the terminal position data 21. The position information matrix is obtained by aligning the positions of the slave terminals 2 in a grid pattern with the position of the master terminal 1 as the origin. Each mobile terminal (Master terminal 1 and Slave terminal 2) displays the divided display data 12 allocated to each of the positions defined in the position information matrix, so that one screen is displayed as a whole. FIG. 2A shows an example of the position information matrix. In FIG. 2, when nine mobile terminals (Master terminal 1 and Slave terminal 2) are used, the positions of the mobile terminals are shown arranged in a grid pattern. In FIG. 2A, for example, the position A of the master terminal 1 is the origin, and the positions of the eight slave terminals 2 are indicated as positions B ′ to I ′.

  The communication function unit 30 performs data communication with each slave terminal 2. The communication function unit 30 transmits the divided display data 12 and the terminal position data 21 to each slave terminal 2. In addition, the communication function unit 30 transmits an update request for updating the screen displayed by the cooperative display system to each slave terminal 2. In addition to receiving an address from the slave terminal 2, the communication function unit 30 also transmits / receives information about the state of the slave terminal 2 (moving / moving completed, etc.).

  The communication function unit 30 includes a wireless local area network (LAN) 31 and an infrared device 32. The communication function unit 30 has a communication function with each slave terminal 2 using the wireless LAN 31 and the infrared device 32. The infrared device 32 is used as a distance sensor in specifying position information when the mobile terminals are aligned, and also used when reproducing a three-dimensional image.

  The various device units 40 include at least a direction sensor 41 and a main LCD 42. The direction sensor 41 is a sensor (for example, a geomagnetic sensor using a semiconductor or the like) that measures the direction (direction) of the mobile terminal. Although details will be described later, the direction sensor 41 is used when the mobile terminals are aligned. The main LCD 42 is used to display an image including the divided display data 12 in a display unit including an LCD (Liquid Crystal Display) that displays various mobile terminal information.

  The slave terminal 2 displays the divided display data 12 at the position determined by the master terminal 1. The slave terminal 2 includes a communication function unit 50, various device units 60, and a terminal position information processing unit 70.

  The communication function unit 50 performs data communication with the Master terminal 1. The communication function unit 50 includes a wireless LAN 51 and an infrared device 52. The communication function unit 50 has a communication function with the master terminal 1 using the wireless LAN 51 and the infrared device 52. The infrared device 52 is used as a distance sensor in specifying position information when the mobile terminals are aligned, and also used when reproducing a three-dimensional image. The communication function unit 50 receives the divided display data 12 and the terminal position data 21 transmitted from the Mater terminal 1 and also receives a display data update request transmitted from the Mater terminal 1. Furthermore, the communication function unit 50 transmits / receives the address of the slave terminal 2 to the master terminal 1 as well as its own state (moving / moving completed, etc.) and the state of other slave terminals 2.

  The various device units 60 include at least a direction sensor 61 and a main LCD 62. The direction sensor 61 is a sensor (for example, a geomagnetic sensor using a semiconductor or the like) that measures the direction (direction) of the mobile terminal. Although details will be described later, the direction sensor 61 is used when the mobile terminals are aligned. The main LCD 62 is used to display an image including the divided display data 12 transmitted from the master terminal 1.

  Note that the cooperative display system is not limited to two-dimensional screen display using mobile terminals (Master terminal 1 and Slave terminal 2), and can also perform three-dimensional screen display. Each portable terminal (Master terminal 1 and Slave terminal 2) has a three-dimensional display function for displaying the divided display data 12 as a three-dimensional screen display.

  In this embodiment, a three-dimensional display function based on a frame sequential method is employed. The three-dimensional display function synchronizes the display control of the display screens (main LCD 42 and main LCD 62) of each portable terminal based on the wireless LAN (wireless LAN 31, wireless LAN 51), and updates the display screen of each portable terminal. . When using the three-dimensional display, the viewer of the screen wears liquid crystal shutter-type three-dimensional glasses. Then, the master terminal 1 transmits a liquid crystal shutter opening / closing request to the viewer-side three-dimensional glasses at the screen update timing using the infrared device 32. The three-dimensional glasses on the viewer side opens and closes the liquid crystal shutter in response to the received liquid crystal shutter opening and closing request.

  The terminal position information processing unit 70 has a terminal position calculation function 72 that calculates the position of the slave terminal 1 based on the terminal position data 71. The terminal position data 71 is a position information matrix transmitted from the Master terminal 1.

  Although illustration is omitted, the Master terminal 1 and the Slave terminal 2 include a control unit (CPU: Central Processing Unit) that controls each part of the mobile terminal according to a program, a ROM (Read Only Memory) that stores a program, and the like. A RAM (Random Access Memory) used when executing the program, an input operation unit for a user to perform an operation input, and an input control unit connected to the input operation unit to detect an input are provided. The program includes a cooperative display program for executing the cooperative display method using the Master terminal 1 and the Slave terminal 2.

  Further, the above-described program can be stored using various types of non-transitory computer readable media and supplied to a terminal. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (for example, flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (for example, magneto-optical disks), CD-ROMs (Read Only Memory) CD-R, CD -R / W, including semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)). In addition, the program may be supplied to the terminal by various types of temporary computer readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. The temporary computer-readable medium can supply the program to the terminal via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

  Hereinafter, the operation of the cooperative display system will be described with reference to FIGS. FIG. 3 is a flowchart showing an operation procedure of the master terminal and the slave terminal. In FIG. 3, the operation of the Master terminal 1 is shown on the left side of the figure, and the operation of the Slave terminal 2 is shown on the right side of the figure.

First, the operation of the Master terminal 1 shown on the left side of FIG. 3 will be described.
The master terminal 1 receives the addresses transmitted from all the slave terminals 2 (S101). The master terminal 1 confirms the number of usable terminals based on the reception result of the address, divides the display data 11 into the number of usable terminals including itself, and creates divided display data 12 ( S102). Further, when the master terminal 1 displays the divided display data 12 on each terminal, the Master terminal 1 creates a position information matrix used to indicate the position where each terminal should be (S103). The master terminal 1 transmits the created position information matrix to all the slave terminals 2 (S104).

  Next, the user holding the terminal moves the terminal according to the instruction from the Master terminal 1 (S105). The master terminal 1 notifies the user to move the terminal position to the origin position of the position information matrix. The master terminal 1 displays, for example, a screen for moving the terminal toward a target azimuth and position on the main LCD 42 and prompts the user to move the terminal. Further, the master terminal 1 may create voice data for moving the terminal toward a target direction and position, and output the voice data from a voice output device such as a speaker. Although details will be described later, the master terminal 1 transmits the divided display data 12 to each slave terminal 2. The details of the operation when the Master terminal 1 moves in S105 will be described later.

  After the movement of all the terminals (Master terminal 1 and Slave terminal 2) is completed, Master terminal 1 notifies screen update request to Slave terminal 2, and at the same time, opens and closes the liquid crystal shutter for the viewer's glasses. The request is notified (S106). When the master terminal 1 also displays the divided display data 12 by itself using the main LCD 42, the master terminal 1 updates the screen in synchronization with the update request.

  When there is the divided display data 12 to be continuously displayed (YES in S107), the master terminal 1 returns to S106 and continues the process. When there is no divided display data 12 to be continuously displayed (in the case of No in S107), the master terminal 1 notifies the slave terminal 2 of the display end, assuming that all the divided display data 12 has been displayed. (S108), the process is completed.

Next, the operation of the slave terminal 2 shown on the right side of FIG. 3 will be described.
The slave terminal 2 notifies the address of the own terminal to the master terminal 1 (S201). As described above, the master terminal 1 that has received addresses from all the slave terminals 2 creates a position information matrix and transmits it to each slave terminal 2. For this reason, each Slave terminal 2 receives the position information matrix transmitted from the Master terminal 1 (S202).

  Next, the user holding the terminal moves the terminal according to the arrangement shown in the position information matrix transmitted from the Master terminal 1 (S203). The slave terminal 2 notifies the user to move the terminal position to the target position. Although described in detail later, the slave terminal 2 receives the divided display data 12 transmitted from the master terminal 1. Details of the operation when the slave terminal 2 moves in S203 will be described later.

  After the movement of all terminals (Master terminal 1 and Slave terminal 2) is completed, a screen update notification is transmitted from Master terminal 1 to Slave terminal 2, and Slave terminal 2 receives the screen update transmitted from Master terminal 1. A notification is received (S204).

  The slave terminal 2 displays the divided display data 12 assigned to each terminal on the main LCD 42 (S205). When the slave terminal 2 has not received the display end notification from the master terminal 1 (NO in S206), the slave terminal 2 returns to S204 and continues the processing. The slave terminal 2 completes the process when receiving the display end notification from the master terminal 1 (YES in S206).

  4 and 5 are diagrams showing display examples when the frame sequential method is used. 4 and 5, the case where 42 terminals are used will be described as an example. Of these terminals, the Master terminal 1 is arranged at the upper left, the Slave terminal 2 is arranged at another position, and the divided display data 12 is displayed on each screen. In FIG. 4, the display data 11 displaying the character “O” is divided into 49 pieces of divided display data 12 and displayed. FIG. 4A shows a frame 1 that is an image for the right eye, and FIG. 4B shows a frame 2 that is an image for the left eye. In FIG. 5, the display data 11 displaying the character “K” is divided into 49 pieces of divided display data 12 and displayed. FIG. 5A shows a frame 3 that is an image for the right eye, and FIG. 5B shows a frame 4 that is an image for the left eye. Note that the characters “OK” can be displayed as a whole by continuously displaying the frames 1 to 4 shown in FIGS. 4 and 5.

Next, the movement processing operation of each terminal will be described in detail with reference to FIG. 2 (b), FIG. 6, and FIG.
FIG. 6 is a flowchart showing a procedure for calculating the moving distance to the target position and the moving angle. In FIG. 6, the operation of the Master terminal 1 is shown on the left side of the figure, and the operation of the Slave terminal 2 is shown on the right side of the figure.

First, the operation of the Master terminal 1 shown on the left side of FIG. 6 will be described.
The master terminal 1 moves the terminal position to the origin position of the position information matrix (S301). The master terminal 1 refers to the position information matrix to check whether there is a free area where the terminal is to be placed on the right side of itself (S302). If there is a free area, the master terminal 1 is placed on the right side. An arbitrary slave terminal 2 to be determined is determined (S303). If there is no free space, the master terminal 1 advances the processing to S307.

  The master terminal 1 calculates the angle α and the distance l, and calculates the movement distance x of the slave terminal 2 and the movement angle θ of the slave terminal 2 with respect to the target position indicated in the position information matrix (S304). The angle α is an angle formed by the horizontal direction of the position information matrix and the direction connecting the Master terminal 1 and the Slave terminal 2. The distance l is a distance between the master terminal 1 and the determined slave terminal 2.

  More specifically, first, the master terminal 1 determines in which direction the slave terminal 2 determined to be arranged on the right side is currently located when viewed from the master terminal 1 (that is, the angle α) by using the direction sensor. Positioning is performed using (the direction sensor 41 and the direction sensor 61). Further, the master terminal 1 measures the distance l using an infrared device (infrared device 32, infrared device 52). In addition, since the distance positioning technique using an infrared device is a well-known technique, a detailed description thereof is omitted here.

  A method for calculating the movement distance x and the movement angle θ will be specifically described with reference to FIG. FIG. 7 illustrates a calculation method in the case where the terminal at the position B is moved to the position B ′. In the figure, m indicates the distance between the terminals with respect to the target position of the terminal specified in the position information matrix. m has already been calculated when the position information matrix is created. As shown in FIG. 7, by using the obtained α and l and the calculated m, the moving distance x of the terminal to be moved to the target position and the moving angle θ are calculated. FIG. 7A shows a calculation formula when lcos α is greater than or equal to m, and FIG. 7B shows a calculation formula when l cos α is smaller than m.

  The master terminal 1 calculates the calculated moving distance x and the moving angle θ and the direction of the direction in which the own terminal is located as viewed from the target terminal (here, the slave terminal 2 determined to be arranged on the right). (S305).

  When the master terminal 1 receives the movement completion notification from the target terminal (S306), the master terminal 1 checks whether or not there is an area in which the terminal is arranged in the downward direction (S307). When there is an empty area, the master terminal 1 determines an arbitrary slave terminal 2 to be arranged in the downward direction (S308), and returns to S304 to continue the processing. If there is no free space, the master terminal 1 advances the processing to S310.

  The master terminal 1 transmits the divided display data 12 to the target terminal that has received the movement completion notification (S309). Each time the master terminal 1 receives a movement completion notification from the target terminal, the master terminal 1 transmits the divided display data 12 to the target terminal (S310).

Next, the operation of the slave terminal 2 shown on the right side of FIG. 6 will be described.
The slave terminal 2 stores information for moving to the target position (position information matrix, movement distance x, movement angle θ, direction in which the terminal is located as viewed from the target terminal, etc.) Then, it receives from the Master terminal 1) (S401).

  The slave terminal 2 directs the direction of its own terminal in the direction in which the terminal that has completed the movement (here, the master terminal 1) is located, rotates the movement angle θ from the direction, and moves the movement distance l (S402). When the movement is completed, the slave terminal 2 notifies the movement completion to the terminal that has completed the movement (here, the master terminal 1) (S403). The slave terminal 2 receives the divided display data 12 transmitted from the master terminal 1 (S404).

  FIG. 6 shows only an operation example in the case where the master terminal 1 and the slave terminal 2 are arranged on the right side of the master terminal 1 and in the downward direction. When the slave terminal 2 has completed the movement to the right of the master terminal 1 and in the downward direction, the slave terminal 2 that has completed the movement may perform the operations after S302 shown on the left side of FIG. . In this case, the other slave terminals 2 excluding the slave terminal 2 that has completed the movement perform the operation shown on the right side of FIG.

Here, with reference to FIG.2 (b), the example of a movement of a terminal is demonstrated concretely.
In FIG. 2B, first, the Master terminal 1 moves to the origin. Then, the slave terminal 2 at the position B moves to the target position B ′ on the right side when viewed from the master terminal 1. Then, the slave terminal 2 at the position D moves to the target position D ′ in the downward direction when viewed from the master terminal 1. At the same time, the slave terminal 2 at the position B ′ where the movement has been completed moves the slave terminal 2 at the position C to the position C ′. Further, the slave terminal 2 at the position D ′ where the movement has been completed moves the slave terminal 2 at the position E and the position G to the respective target positions. At the same time, the slave terminal 2 at the position C ′ where the movement has been completed further moves the slave terminal 2 at the position F to the respective target positions. Finally, when the master terminal 1 receives the movement completion notification from all the slave terminals 2, the terminal movement process is completed. In this way, the movement efficiency of each terminal can be improved in proportion to the passage of time by causing the movement operation of each terminal to be executed with the terminal having completed the movement as a base point.

According to the present embodiment described above, the user of the mobile terminal can easily display a huge image or perform a mass game. In addition, various effects exemplified below are also exhibited.
The first effect can be easily realized by using a plurality of terminals without using a large-scale device such as a movie theater screen or a three-dimensional television when reproducing a three-dimensional image on a large screen. be able to.
The second effect is that the display of the divided display data and the reception of the update timing are performed on the slave terminal 2 side, so that the user can realize video display and mass game simply by lifting the terminal according to the instruction. .
The third effect is that since various sensors are used to measure the position and orientation of the terminal, the user can move the terminal to the optimum terminal position without being aware of the terminal position or the like. .

Embodiment 2. FIG.
Compared with the first embodiment described above, the coordinated display system according to the present embodiment is different in a method in which each terminal (Master terminal 1 and Slave terminal 2) measures the position information. In the first embodiment described above, the terminals (Master terminal 1 and Slave terminal 2) use an infrared device (infrared device 32, infrared device 52) to measure position information including the distance between portable terminals. However, in this embodiment, an ultrasonic device is also used in addition to the infrared device. Since the other basic configuration is the same as that of the first embodiment, the following description will focus on the differences, and the detailed description of common points will be omitted.

  FIG. 8 is an overall configuration diagram of the cooperative display system according to the present embodiment. In FIG. 8, the master terminal 1 further includes an ultrasonic device 43 for positioning position information. The slave terminal 2 further includes an ultrasonic device 63 for measuring position information.

  In the configuration in which the distance is measured using only the infrared device (the infrared device 32, the infrared device 52), the positioning of the distance may fail when there is a strong light source around the terminal. Therefore, when the distance measurement fails, the position of the portable terminal can be determined with more accurate accuracy by performing positioning using an ultrasonic device instead of the infrared device. Therefore, according to the present embodiment, it is possible to realize a cooperative display system even in an environment where an infrared device cannot be used by further providing an ultrasonic device and using it for distance measurement.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, in the above-described embodiment, the master terminal 1 and the slave terminal 2 are distinguished from each other, but the present invention is not limited to this. That is, both the master terminal 1 and the slave terminal 2 have the same configuration, and depending on the setting, one of the terminals is used as the master terminal 1 and the other terminal is used as the slave terminal 2. May be.

1 Master terminal,
10 display data division processing unit,
11 Display data,
12 split display data,
13 Display data division function,
20 terminal location information processing unit,
21 terminal location data,
22 Terminal location calculation function,
30 communication function unit,
31 wireless LAN,
32 Infrared device,
40 Various device parts,
41 Direction sensor,
42 Main LCD,
43 Ultrasonic device,
2 Slave terminals,
50 communication function unit,
51 wireless LAN,
52 infrared devices,
60 Various device parts,
61 Azimuth sensor,
62 Main LCD,
63 ultrasonic equipment,
70 terminal location information processing unit,
71 terminal location data,
72 Terminal position calculation function,

Claims (8)

An orientation sensor that detects the orientation between mobile devices,
A distance sensor for detecting a distance between the mobile terminals;
A communication function unit for performing communication between the mobile terminals;
A display unit for displaying an image, and a plurality of portable terminals,
One of the plurality of portable terminals is a master terminal that is a master, and the other plurality of portable terminals are slave terminals,
The master terminal is
In order to divide display data constituting one screen into a plurality of divided display data and display the divided display data on the plurality of other slave terminals, respectively, based on the detection results of the direction sensor and the distance sensor. A coordinated display system that determines a position where the slave terminal should be, instructs each slave terminal to move to the determined position, and instructs the slave terminal to transmit and display the divided display data. The master terminal is
Based on the division result of the display data, the position of the master terminal is set as the origin, and a position information matrix in which the positions of the plurality of other slave terminals are arranged in a grid is created, and the position information matrix is The cooperative display system according to claim 1, wherein a position where each of the slave terminals should be is determined based on detection results of the direction sensor and the distance sensor. The cooperative display system according to claim 1, wherein the distance sensor includes an infrared device. The cooperative display system according to any one of claims 1 to 3, wherein the distance sensor includes an ultrasonic device that detects a distance between the portable terminals. The master terminal is
The cooperative display according to any one of claims 1 to 4, wherein the display data of the three-dimensional display is divided into a plurality of divided display data, and the display unit of the portable terminal reproduces the three-dimensional video. system. The cooperative display system according to claim 1, wherein the mobile terminal is a mobile phone terminal. An orientation sensor that detects the orientation between mobile devices,
A distance sensor for detecting a distance between the mobile terminals;
A communication function unit for performing communication between the mobile terminals;
A cooperative display method in a cooperative display system comprising a plurality of portable terminals having a display unit for displaying an image,
One of the plurality of portable terminals is a master terminal that is a master, and the other plurality of portable terminals are slave terminals,
The master terminal is
In order to divide display data constituting one screen into a plurality of divided display data and display the divided display data on the plurality of other slave terminals, respectively, based on the detection results of the direction sensor and the distance sensor. A coordinated display method that determines a position where the slave terminal should be, instructs each slave terminal to move to the determined position, and instructs the slave terminal to transmit and display the divided display data. Among the plurality of mobile terminals, the self-portable terminal is a master, and the other mobile terminals are slave terminals.
An orientation sensor for detecting an orientation between the mobile terminals;
A distance sensor for detecting a distance between the mobile terminals;
A communication function unit for performing communication between the mobile terminals;
A display unit for displaying an image,
In order to divide display data constituting one screen into a plurality of divided display data and display the divided display data on the plurality of other slave terminals, respectively, based on the detection results of the direction sensor and the distance sensor. A portable terminal that determines a position where the slave terminal should be, instructs each slave terminal to move to the determined position, and transmits and displays the divided display data to each slave terminal.

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