JP5247347B2 - Image display system and main apparatus - Google Patents

Description

  The present invention relates to an image display system, and more particularly to an image display system including a main device including a main display unit and a sub device including a sub display unit and configured to be portable.

  Conventionally, a car navigation system that calculates the current position using a GPS (Global Positioning System), a gyro, a vehicle speed sensor, etc., and synthesizes the vehicle position and map information about surrounding roads and buildings and displays them on a display It has been known.

  The display of such a car navigation system is disposed at a position that is easily visible to the driver in the driver's seat. Therefore, it may be difficult for passengers sitting in the passenger seat or the rear seat to see the information displayed on the display.

  Moreover, in recent years, mobile phones that have been widely used are provided with a camera function for capturing and displaying images on almost all models. Therefore, for example, the passenger can easily see the information displayed on the display by capturing a display image on the display of the car navigation system with a mobile terminal such as a mobile phone having the camera function.

  However, since the display unit included in the mobile terminal such as a mobile phone is smaller than the display of the car navigation system, when the image displayed on the display of the car navigation system is captured by the camera of the mobile terminal, the mobile terminal In the image displayed on the display unit, information such as characters is displayed finely, and the information is difficult to read.

  If the camera part of the portable terminal is brought close to the display to be imaged and the image is taken, information such as characters can be displayed in a relatively easy-to-read size. Since it becomes difficult to enter, there arises a problem that the brightness of the captured image is lowered and the information becomes difficult to read.

  As a technique for solving such a problem, a magnifying glass mode setting means for setting an operation mode to a magnifying glass mode for enlarging a captured image taken by a camera at an equal magnification or more and displaying it on the display screen of the main display unit, and a magnifying glass mode setting means A mobile phone device has been devised that includes control means for controlling the display screen to display a higher brightness when the magnifying glass mode is set than when the magnifying glass mode is not set (see, for example, Patent Document 1). .)

JP 2006-60535 A

  However, the mobile phone device according to the above prior art has a new problem that the image quality deteriorates when the captured image is enlarged and displayed. Furthermore, when the display content changes as needed, such as an image displayed on the display of the car navigation, the mobile phone device cannot display it at any time.

  In addition, some conventional image display devices are known in which a display image is moved, enlarged, or reduced by operating an operation button. In the conventional image display device, one operation button is operated. Therefore, it is difficult to reflect the user's intentions straightforwardly when moving, enlarging, or reducing the display image. There was room.

  Therefore, in the present invention, it is possible to display an image being displayed on a display unit that displays an image whose display content changes as needed on a display unit of another device configured to be portable without degrading the image quality. An object of the present invention is to provide an image display system with improved operability for a user.

  In the present invention, a main apparatus comprising main display means and image data transmission means for transmitting image data of an image displayed on the main display means to a sub-device configured to be portable, and the main apparatus An image display system comprising: image data receiving means for receiving the image data transmitted from the image data receiving means; and the sub-device provided with sub-display means for displaying the image data received by the image data receiving means as an image. The sub device has a sensor means for detecting a relative positional relationship with the main device, and a position for transmitting the positional relationship data indicating the relative positional relationship detected by the sensor means to the main device. And the main apparatus receives the positional relation data receiving means for receiving the positional relation data from the sub apparatus and the positional relation data receiving means. Provided is an image display system having transmission image generation means for generating an image corresponding to a relative positional relationship between the main device and the sub device based on the positional relationship data and outputting the image to the image data transmission means. It was decided.

  According to the present invention, the secondary device can receive the image data of the image displayed on the main display means from the main device and display the image data on the secondary display means, so that an image whose display contents change as needed is displayed. The image being displayed on the display means can be displayed on the secondary display means of the secondary device configured to be portable without degrading the image quality, and the secondary device and the main device can be operated without operating the operation buttons. By changing the relative positional relationship, it is possible to change the image to be displayed on the secondary device, so that the operability for the user can be improved.

  Hereinafter, an embodiment of an image display system according to the present embodiment will be specifically described with reference to the drawings. In the present embodiment, for an image display system that assumes a car navigation system device (hereinafter referred to as “parent device”) as a main device and a mobile phone device (hereinafter referred to as “child device”) as a sub device. A case where the present invention is applied will be described as an example.

  The present invention is not limited to an image display system including a car navigation system device and a mobile phone device. The main device includes a main display unit and a sub-portion including a sub display unit and configured to be portable. The present invention can be applied to any other image display system including a device.

  FIG. 1 is an explanatory diagram showing the inside of a vehicle that employs the image display system according to the present embodiment. As shown in FIG. 1, the image display system S according to the present embodiment includes a parent device 100 and a child device 200. Master device 100 is disposed at a position that is easily visible to the driver of the driver's seat. The base unit 100 is a display as a main display unit that displays an image obtained by combining the vehicle position and map information about surrounding roads and buildings based on a position information signal received from a GPS (Global Positioning System) satellite. 101.

  On the other hand, the slave device 200 includes a display 201 as a sub display unit capable of displaying various images. The handset 200 is configured to be portable, and has a function of receiving image data related to an image being displayed on the display 101 from the base unit 100 and displaying the image data on the display 201 in addition to a known mobile phone function. Yes.

  Therefore, in this image display system S, the same image as the image being displayed on the parent device 100 can be displayed on the display 201 of the child device 200 without degrading the image quality.

  Further, in the image display system S, the slave device 200 has a function of detecting a relative positional relationship with the master device 100. The slave device 200 is relative to the master device 100 with respect to the master device 100. When transmitting the positional relationship data indicating the general positional relationship, the parent device 100 responds to the relative positional relationship between the parent device 100 and the child device 200 based on the positional relationship data received from the child device 200. Image data of an image is generated and transmitted to the child device 200.

  In the image display system S, the user of the child device 200 moves the child device 200 to change the relative positional relationship between the child device 200 and the parent device 100, thereby causing the display 201 of the child device 200 to display the parent device 200. The image displayed on the display 101 of the parent device 100, such as an image obtained by enlarging a partial area of the image displayed on the display 101 of the device 100 or an image to be displayed outside the display area of the display 101 of the parent device 100. An image that is not the same as the image and that is related to the image being displayed on the display 101 of the parent device 100 can be displayed on the display 201 of the child device 200.

  Therefore, according to this image display system S, the user of the child device 200 changes the relative positional relationship between the child device 200 and the parent device 100 to change the image being displayed on the display 101 of the parent device 100. A related desired image can be viewed on the display 201 of the slave unit 200.

  Further, in the image display system S, even when image data corresponding to the relative positional relationship between the parent device 100 and the child device 200 is being transmitted from the parent device 100 to the child device 200, the parent device 100. Is configured so that an image of map information indicating the position of the vehicle is displayed on the display 101 at any time, regardless of the relative positional relationship between the parent device 100 and the child device 200.

  Therefore, the driver can check the position of the vehicle on the display 101 of the parent device 100 while the vehicle is stopped, and the user of the child device 200 can use the display 201 of the child device 200 while sitting on the passenger seat or the rear seat. A desired image related to the image being displayed on the 100 display 101 can be viewed.

  Here, with reference to FIG. 2, the structure of the main | base station 100 in the image display system S of this embodiment and the subunit | mobile_unit 200 is demonstrated. FIG. 2 is a functional block diagram showing configurations of the parent device 100 and the child device 200 in the image display system S of the present embodiment.

  As shown in FIG. 2, the slave unit 200 in the image display system S of the present embodiment includes a display 201, a control unit 202, a received data storage unit 203, and an operation unit 210. The display 201 is configured by a liquid crystal display device, and displays various images based on display control by the control unit 202. The display 201 is not limited to the liquid crystal display device, and may be configured by other thin image display devices such as organic EL (Organic Electro-Luminescence).

  The reception data storage unit 203 is configured by a non-volatile memory such as a flash memory. In addition to image data received from the parent device 100, data corresponding to a telephone directory when the child device 200 functions as a mobile phone, etc. Store various data.

  The operation unit 210 includes a plurality of operation buttons. When a predetermined operation is performed by the user, the operation unit 210 transmits a signal corresponding to the operation to the control unit 202. In particular, the slave unit 200 according to the present embodiment causes the display 201 to display the image data received from the master unit 100 from the telephone mode in which the slave unit 200 functions as a mobile phone by operating the operation unit 210. In the slave mode or the slave mode, it is possible to switch to an image enlargement / reduction mode, a 3D display mode, an additional information acquisition mode, an image transfer mode, and the like, which will be described later.

  The control unit 202 includes a display control unit 204, an image data reception unit 205, a positional relationship data transmission unit 206, a positional relationship detection sensor 207, and an additional information acquisition unit 208. The display control unit 204, the image data reception unit 205, the positional relationship data transmission unit 206, the positional relationship detection sensor 207, the additional information acquisition unit 208, and the reception data storage unit 203 are mutually connected to a communication bus 209. Connected by. The operation unit 210 is also connected to the bus 209.

  The display control unit 204 is a processing unit that performs display control of the display 201. For example, the display control unit 204 causes the display 201 to display image data received from the parent device 100 as an image. The image data receiving unit 205 is a communication processing unit that receives image data from the parent device 100 using the Bluetooth (registered trademark) standard. In the present embodiment, data is transmitted and received between the parent device 100 and the child device 200 using Bluetooth. However, the communication with the parent device 100 using a communication standard other than Bluetooth is possible. You may comprise so that the data communication between the subunit | mobile_unit 200 may be performed.

  The positional relationship data transmission unit 206 includes a relative positional relationship between the slave device 200 and the parent device 100 detected by the positional relationship detection sensor 207, a relative positional relationship change amount, and a relative It is a communication processing unit that transmits positional relationship data indicating the amount of change in positional relationship per unit time to the parent device 100.

  In particular, the positional relationship data transmission unit 206 is a mode for causing the parent device 100 to specify the mode selected at that time in the positional relationship data corresponding to various modes selected by the operation of the operation unit 210 by the user. Data is added and transmitted to base unit 100.

  The positional relationship detection sensor 207 includes a motion sensor that detects the acceleration of the child device 200 and a laser distance sensor that detects a distance between the child device 200 and the parent device 100 using a laser beam.

  And this positional relationship detection sensor 207 is based on the movement acceleration of the child device 200 detected by the motion sensor and the distance to the parent device 100 detected by the laser distance sensor at that time. 100 generates positional relationship data indicating a relative positional relationship with 100, a relative positional relationship change amount, and a relative positional relationship change amount per unit time, and outputs the positional relationship data to the positional relationship data transmission unit 209 To do. In this embodiment, a motion sensor and a laser distance sensor are provided as position detection sensors. However, the position detection sensor is a sensor that can detect a relative positional relationship with the parent device 100 and a change in the positional relationship. If present, another sensor such as a Doppler sensor or an infrared sensor may be provided.

  The additional information acquisition unit 208 is a communication processing unit that connects to a communication network N such as the Internet by wireless communication or wired communication and acquires additional information described later from a predetermined server 500 connected to the communication network N. The server 500 includes a storage device 501 that stores additional information, and a communication unit 502 that transmits and receives various data to and from the slave device 200 via the communication network N.

  Here, the image enlargement / reduction mode, 3D display mode, additional information acquisition mode, and image transfer mode that can be selected when the slave mode is set in the slave 200 will be described.

  The image enlargement / reduction mode is a mode in which a partial area of an image displayed on the display 101 of the parent device 100 is enlarged or reduced on the display 201 of the child device 200. Further, the 3D display mode is a mode in which a 3D image obtained by stereoscopicizing a planar image (2D image) displayed on the display 101 of the parent device 100 is displayed on the display 201 of the child device 200.

  Further, in the additional information acquisition mode, an image displayed on the display 101 of the parent device 100 is displayed on the display 201 of the child device 200, and a predetermined point in the image displayed on the display 201 of the child device 200 is a user. In this mode, additional information (additional information) regarding the point is acquired from the server 500 and displayed on the display 201 of the child device 200.

  In the image transfer mode, the image displayed on the display 101 of the parent device 100 is displayed on the display 201 of the child device 200, and the image displayed on the display 201 of the child device 200 is displayed on the other child device 300. This mode is displayed on the display (see FIG. 9). Various images displayed on the display 201 of the child device 200 in these various modes will be described in detail later.

  On the other hand, base unit 100 includes display 101, control unit 102, storage unit 103, and operation unit 110. The display 101 is configured by a liquid crystal display device, and displays various images based on display control by the control unit 102. The display 101 is not limited to a liquid crystal display device, and may be configured by other thin image display devices such as organic EL (Organic Electro-Luminescence).

  The storage unit 103 is configured by a large-capacity storage device such as a flash memory or an HDD (Hard disk drive), and stores an image database 109 such as a map image to be displayed on the display 101.

  The operation unit 110 includes operation buttons, and is operated by a user when the parent device 100 functions as a car navigation system. The operation unit 110 outputs a signal corresponding to a user operation to the control unit 102. Here, although the operation unit 110 is configured with operation buttons, when a display device having a touch panel function is used as the display 101, the display 101 functions as the operation unit 110.

  The control unit 102 includes a display control unit 104, an image data transmission unit 105, a positional relationship data reception unit 106, and a transmission image generation unit 107. The display control unit 104, the image data transmission unit 105, the positional relationship data reception unit 106, the transmission image generation unit 107, and the storage unit 103 are connected to each other via a communication bus 108. The operation unit 110 is also connected to the bus 108.

  The display control unit 104 is a processing unit that performs display control of the display 101. For example, based on the image data stored in the storage unit 103, the display control unit 104 displays a map image or the like indicating the vehicle position on the display 101.

  The image data transmission unit 105 is a communication processing unit that transmits an image generated by the transmission image generation unit 107 to the child device 200 using a communication standard such as Bluetooth (registered trademark). The positional relationship data receiving unit 106 is a communication processing unit that receives the positional relationship data transmitted from the child device 200 and outputs the positional relationship data to the transmission image generating unit 107. In addition, transmission / reception of various data performed with the subunit | mobile_unit 200 is not limited to the data communication using Bluetooth, For example, it comprises so that it may be performed using other communication methods and standards, such as infrared communication. Also good.

  The transmission image generation unit 107 generates an image corresponding to the relative positional relationship between the parent device 100 and the child device 200 based on the positional relationship data regarding the child device 200 input from the positional relationship data reception unit 106. The image processing unit outputs the image data of the image to the image data transmission unit 105 and transmits the image data to the child device 200.

  The transmission image generation unit 107 identifies the mode selected in the slave unit 200 based on the mode data added to the positional relationship data input from the positional relationship data reception unit 106, and the mode and positional relationship. Image data corresponding to the data is generated and output to the image data transmission unit 105.

  Here, an example of an image display mode by the handset 200 of the image display system S according to the present embodiment will be described with reference to FIGS. 2 and 3 to 6. 3-6 is explanatory drawing which shows an example of the display mode of the image by the subunit | mobile_unit 200. FIG.

  Here, a case will be described in which, when there is one slave unit 200, a slave unit mode, an image enlargement / reduction mode, a 3D display mode, and an additional information acquisition mode that can be selected by the slave unit 200 are selected. First, a case where the user selects the slave mode by operating the operation unit 210 and then selects the image enlargement / reduction mode will be described.

  When the user operates the operation unit 210 of the child device 200 to select the child device mode, the image displayed on the display 101 of the parent device 100 is displayed at the same size on the display 201 of the child device 200. . Here, since the image Ma of the map (A) of 500 m scale is displayed on the display 101 of the parent device 100, the map (A) of 500 m scale is displayed on the display 201 of the child device 200 as in the case of the parent device 100. The image Ma is displayed.

  At this time, the slave unit 200 adds mode data indicating that the slave unit mode has been selected to the positional relationship data indicating the distance between the own device and the master unit 100 (here, 30 cm) by the positional relationship detection sensor 207. Send to base unit 100. Master device 100 detects that the slave device mode has been selected based on the mode data included in the positional relationship data received from slave device 200, and corresponds to the image currently displayed on display 101 by transmission image generation unit 107. Image data is generated, and the image data is transmitted to the slave 200 by the image data transmission unit 105.

  Then, the child device 200 receives image data from the parent device 100 by the image data receiving unit 205, and causes the display control unit 204 to display the image data on the display 201.

  Subsequently, when the operation unit 210 is operated by the user and the image enlargement / reduction mode is selected, the child device 200 indicates a positional relationship indicating the distance to the parent device 100 from the parent device 100 (here, 30 cm). The mode data indicating that the image enlargement / reduction mode is selected is added to the data and transmitted.

  Master device 100 detects that the image enlargement / reduction mode has been selected based on the mode data included in the positional relationship data received from slave device 200, and further determines the current distance (30 cm) from slave device 200 of the image. It is stored in the transmission image generation unit 107 as a reference value for changing the scale ratio.

  Thereafter, when the user moves the handset 200 to a position where the distance from the base unit 100 is 60 cm, the display 201 of the handset 200 displays on the display 101 of the base unit 100 as shown in FIG. An image obtained by enlarging a partial area in the map (A) is displayed.

  Here, the map image of the area (B) in the upper right of the map (A) displayed on the display 101 of the parent device 100 in the 500 m scale is enlarged to the 100 m scale and displayed on the display 201 of the child device 200.

  At this time, the slave unit 200 transmits the positional relationship data indicating the distance to the master unit 100 (60 cm in this case) to the master unit 100 by the positional relationship detection sensor 207. The transmission image generation unit 107 of the parent device 100 indicates that the child device 200 is separated from the parent device 100 by 30 cm from the positional relationship data (60 cm) received from the child device 200 and the reference value (30 cm) stored earlier. Detected, image data obtained by enlarging the map image of the district (B) at a magnification (here, 5 times) according to the separation distance is generated and transmitted to the slave device 200 by the image data transmission unit 105.

  In the slave unit 200, based on the image data received from the master unit 100, the display control unit 204 causes the display 201 to display a map image of the district (B) enlarged to 100 m scale. Here, the case where the image displayed on the display 201 of the child device 200 is enlarged by separating the child device 200 from the parent device 100 has been described. However, in this image display system, the child device 200 is conversely arranged. The image displayed on the display 201 of the child device 200 is reduced by being close to the device 100.

  Further, when the transmission image generation unit 107 of the base unit 100 transmits the image data obtained by enlarging the district (B) to the image data transmission unit 105, the map (A) currently displayed on the display 101 of the base unit 100 , Image data of a frame (hereinafter, referred to as “cursor E”) indicating which region of the enlarged view is transmitted to the child device 200 is generated, and the image of the cursor E is displayed on the display 101 of the parent device 100. Is displayed on top of the currently displayed image. The image data of the cursor E is also added to the image data transmitted to the child device 200.

  Next, when the user changes the orientation of the slave unit 200 (in this case, to the left), the display unit 201 is displaying on the display 101 of the master unit 100 as shown in FIG. An enlarged map image of the upper left district (C) in the map (A) is displayed. On display 101 of base unit 100, cursor E moves from the position of district (B) to the position of district (C) and is displayed.

  At this time, handset 200 transmits to base unit 100 position relation data indicating the angular velocity and displacement amount of the own apparatus detected by position relation detection sensor 207. By receiving and analyzing this positional relationship data, base unit 100 changes the orientation of handset 200 to the left, that is, the relative positional relationship between base unit 100 and handset 200 has changed. Detect that. Then, the transmission image generation unit 107 of the parent device 100 generates a map image in which the area corresponding to the change in the relative positional relationship (here, the area of the district (C)) is expanded, and the image data transmission unit 105 Is transmitted to the slave unit 200.

  As described above, in the image display system S of the present embodiment, when the user of the child device 200 selects the child device mode, the same image as the image displayed on the display 101 of the parent device 100 is displayed on the display of the child device 200. 201 can be displayed.

  Therefore, the user of the child device 200 can view the same image as the image being displayed on the display 101 of the parent device 100 on the display 201 of the child device 200 at a position where the user can easily see the image. Usability is improved. In addition, since the image displayed on the display 201 of the child device 200 is an image generated based on image data transmitted from the parent device 100 using Bluetooth (registered trademark) or the like, the same image as that of the parent device 100 is used. The image quality can be reproduced, and when displayed on the display 201 of the child device 200, the image quality is unlikely to deteriorate.

  Further, the user of the child device 200 selects the image enlargement / reduction mode, and pulls the child device 200 away from the parent device 100, thereby enlarging the partial area of the image being displayed on the display 101 of the parent device 100. Since the image can be displayed on the display 201 of the child device 200, even if the display 201 of the child device 200 is smaller than the display 101 of the parent device 100, character information in the image can be easily read. Can do. In addition, the user of the slave device 200 can view a reduced image of the image being displayed on the display 101 of the master device 100 by bringing the slave device 200 closer to the master device 100.

  Further, the user of the slave unit 200 simply changes the orientation of the slave unit 200 and does not require a complicated operation, and an enlarged image obtained by enlarging a desired area in the image displayed on the display 101 of the master unit 100. Therefore, the operability of the slave unit 200 for the user is improved.

  Further, in this image display system S, when the image enlargement / reduction mode is selected, an area corresponding to the relative positional relationship between the child device 200 and the parent device 100 is an image on the display 101 of the parent device 100. If it corresponds to outside the display area, an enlarged image of the area to be displayed outside the image display area is displayed on the display 201 of the child device 200.

  For example, as shown in FIG. 4A, the image enlargement / reduction mode is selected, and the enlarged image of the district (B) in the map (A) displayed on the parent device 100 is displayed on the display 201 of the child device 200. Suppose that

  As described above, when the image of the area (B), which is the area at the right corner, is displayed on the child device 200 on the display 101 of the parent device 100, the user of the child device 200 further turns the child device 200 to the right. In this case, an enlarged image of the area (D) outside the display area of the display 101 of the parent device 100 in the map (A) is displayed on the display 201 of the child device 200 as shown in FIG. The

  At this time, the transmission image generating unit 107 of the parent device 100 is not displayed on the display 101 of the parent device 100 based on the positional relationship data received from the child device 200, but is displayed on the map ( In A), a map image obtained by enlarging the area selected by changing the orientation of the slave unit 200 (here, the region (D)) is generated and transmitted to the slave unit 200 by the image data transmission unit 105. In FIG. 4B, the entire virtual map (A) is indicated by a thick broken line, and the position of the virtual cursor E is indicated by a thin broken line.

  As described above, in the image display system S of the present embodiment, when the user of the slave unit 200 changes the orientation of the slave unit 200 and selects an area corresponding to a region outside the display area of the display 101 of the master unit 100, Since an enlarged image of the area can be displayed on the slave unit 200, for example, when the vehicle position is displayed on the display 101 of the master unit 100, a map image of a destination or the like that is not displayed on the display 101 Can be displayed on the display 201 of the slave unit 200 for confirmation.

  In addition, here, when the user of the child device 200 selects an area corresponding to a region outside the display area on the display 101 of the parent device 100, an enlarged image of the area selected from the parent device 100 to the child device 200 is displayed each time. Although image data is transmitted, image data of an image larger than the image displayed on the display 101 of the parent device 100 is transmitted from the parent device 100 to the child device 200 in advance, and the image data is transmitted to the child device. It may be stored in the 200 received data storage unit 203.

  As a result, the slave unit 200 does not need to receive image data from the master unit 100 when displaying an area corresponding to the display area outside the display area of the master unit 100 on the display 201. Therefore, the processing load is reduced. Can be reduced. Similarly, in the parent device 100, it is not necessary to transmit image data to the child device 200, so that the processing load can be reduced accordingly.

  Next, a case where the user operates the operation unit 210 of the slave device 200 and selects the 3D display mode will be described. In this 3D mode, as shown in FIG. 5, a planar (2D) map image M indicating the vehicle position is displayed on the display 101 of the parent device 100.

  Then, when the 3D display mode is selected by the user of the slave unit 200, a 2D map displayed on the master unit 100 is displayed on the display 201 of the slave unit 200 as shown in FIG. A 3D image MC viewed from the traveling direction (front) is displayed.

  Then, when the user of the slave unit 200 moves (changes the position) the slave unit 200 to the right side from this state, the display 201 of the slave unit 200 has a display shown in FIG. A 3D image MR obtained by viewing the 3D image displayed on the child device 200 at the position from the diagonally right front direction (switching the viewpoint) is displayed.

  On the other hand, when the user of the slave unit 200 moves the slave unit 200 from the position shown in FIG. 5A to the left side, the display 201 of the slave unit 200 has the display shown in FIG. A 3D image ML obtained by viewing the 3D image displayed on the child device 200 at the position (a) from the diagonally left front direction (switching the viewpoint) is displayed.

  At this time, when the 3D display mode is selected, the slave unit 200 indicates that the 3D display mode is selected in the positional relationship data indicating the relative positional relationship between the own device and the master unit 100 at that time. The mode data is loaded and transmitted to base unit 100.

  Master device 100 detects that the 3D display mode has been selected from the mode data included in the positional relationship data received from slave device 200, and 3D image obtained by stereoscopicizing the image currently displayed by transmission image generation unit 107. The MC is generated and transmitted to the slave device 200 by the image data transmission unit 105. The slave unit 200 displays the image data received from the master unit 100 on the display 201.

  Further, in this 3D display mode, when the user of the child device 200 changes (moves) the position of the child device 200, the child device 200 uses the positional relationship detection sensor 207 to detect the relative relationship between the own device and the parent device 100 each time. The positional relationship data indicating the detection result is transmitted to the parent device 100.

  Each time base unit 100 receives this positional relationship data from slave unit 200, 3D image (for example, image MR, ML, etc.) whose viewpoint is switched by transmission image generation unit 107 in accordance with the positional relationship data. Is generated and transmitted to the slave unit 200.

  As described above, in the image display system S of the present embodiment, when the 3D display mode of the child device 200 is selected while a two-dimensional image is displayed on the parent device 100, the display 201 of the child device 200 is displayed on the parent device 100. A 3D image obtained by stereoscopicizing the image being displayed on the device 100 is displayed.

  In addition, since the user can switch the viewpoint of the 3D image without requiring a complicated operation just by moving the handset 200 in a desired direction, for example, a map showing the vehicle position on the base unit 100 When the user of the slave unit 200 wants to determine the destination based on the shape of the building at the destination while displaying the image, the destination can be easily determined.

  Next, a case where the user operates the operation unit 210 of the slave device 200 and selects the additional information acquisition mode will be described. When this load information acquisition mode is selected, base unit 100 adds image data to be transmitted to slave unit 200 with point information corresponding to each predetermined point in the image corresponding to the image data, and transmits the image data. To do.

  Here, as the point information, a URL (Uniform Resource Locator) corresponding to a website on the communication network N that provides additional information regarding each predetermined point in the image is used.

  When this additional information acquisition mode is selected, for example, as shown on the left side of FIG. 6, in an image displayed on the slave unit 200 by the operation of the operation unit 210, a certain gas station (GS) is displayed. When the part where the mark is displayed is selected, as shown on the right side of FIG. 6, the name of the GS store (Kobe GS) and the charge per liter for each oil type (regular gasoline) R: ¥ 144, high-octane gasoline H: ¥ 154, light oil K: ¥ 122), and an image of additional information related to the selected GS such as information on the GS (additional discount of ¥ 2 with a prepaid card!) .

  At this time, when the GS mark in the image is selected by the user, the slave device 200 causes the additional information acquisition unit 208 to communicate with the communication network N based on the point information (here, URL) corresponding to the GS mark. The server transmits a request for additional information to the server 500, and receives and acquires additional information regarding the GS selected by the user from the server 500 as a response. Then, the slave unit 200 displays the additional information acquired by the additional information acquisition unit 208 on the display 201.

  As described above, in the image display system S of the present embodiment, when the user selects a predetermined point in the image displayed on the display 201 of the child device 200, the child device 200 causes the parent device 100 to relate to the predetermined point. Additional information that is not held by the server 500 can be acquired from the server 500 via the communication network N and displayed.

  Therefore, not only the convenience for the user is improved, but it is not necessary to store a huge amount of additional information in the parent device 100, so the storage unit 103 of the parent device 100 can be used effectively, Furthermore, a lot of image data such as map information can be stored.

  In the present embodiment, as the point information, a URL related to a website on the communication network N that provides additional information related to each predetermined point in the image is used. However, the point information is not limited to the URL. For example, other information such as a QR code or a bar code in which access information to a website providing additional information regarding a predetermined point is stored may be used.

  Further, since the additional information is information stored in the server 500, it is updated in the server 500 in real time. Therefore, the subunit | mobile_unit 200 can acquire in real time also the additional information which changes with time, such as parking space empty information, traffic congestion information, etc., for example.

  Here, an example of a combination of images that can be displayed on the display 101 of the parent device 100 and the display 201 of the child device 200 in the present embodiment will be described with reference to FIG. FIG. 7 is an explanatory diagram illustrating an example of a combination of display contents by the parent device 100 and the child device 200. In FIG. 7, image display on the display 101 of the parent device 100 is expressed as parent screen display, and image display on the display 201 of the child device 200 is expressed as child screen display.

  As shown in FIG. 7, when a map is displayed as the main screen display, an enlarged view or a reduced view of the parent screen display, a 3D map display, a railway route map, a subway route map, or the like is displayed as the child screen display. . When an aerial photograph is displayed as the main screen display, a map corresponding to the aerial photograph is displayed as the sub-screen display. Further, when an image of a predetermined area is displayed as the main screen display, the sight information in the area is displayed as the sub screen display.

  Further, when the sea is displayed during the main screen display, the navigation screen, the sea route, the type of seafood caught in the vicinity, etc. are displayed as the sub screen display. Further, when a mountain is displayed during the main screen display, the sub-screen display displays the type of wild animals seen in the vicinity, the type of wild plants taken in the vicinity, and the like.

  In addition, when a hot spring is displayed during the main screen display, the quality and efficacy of the hot spring are displayed as a sub-screen display. Further, when a facility is displayed during the main screen display, facility information such as business hours of the facility is displayed as a sub-screen display.

  Further, when the traffic jam is displayed while the main screen is displayed, the cause and scale of the traffic jam are displayed as the sub-screen display. Further, when a parking lot is displayed during the main screen display, the vacant information of the parking lot is displayed as the sub screen display. 7 indicates that the information is information acquired from the server 500, and Δ indicates a part of the information (for example, arbitrarily changed business hours). It is acquired from the server 500. It should be noted that the slave unit 200 acquires information not marked with a circle or a triangle from the master unit 100.

  Next, in the image display system S of the present embodiment, a process executed by each of the parent device 100, the child device 200, and the server 500 and a flow of data transmitted and received will be described with reference to FIG. FIG. 8 is a sequence diagram showing the processes executed by master device 100, slave device 200, and server 500 and the flow of data to be transmitted and received.

  First, an image display for the parent device (for example, a map image display indicating the vehicle position) is performed on the display 101 of the parent device 100 (1). At this time, when the user of the child device 200 selects the child device mode, the child device 200 acquires the relative position information between the own device and the parent device 100 (2).

  Thereafter, the slave device 200 transmits the positional relationship data to the master device 100 (3). At this time, handset 200 transmits positional relationship data according to the mode selected by the user (for example, image enlargement / reduction mode, 3D display mode, etc.).

  When receiving the positional relationship data from the slave device 200 (4), the master device 100 receives the slave device image based on the mode of the slave device 200 selected at that time and the received positional relationship data. Is generated (5), and the image data of the image for the child device is transmitted to the child device 200 (6). When receiving the image data of the image for the child device from the parent device 100 (7), the child device 200 converts the image data into an image and displays it on the display 201 of the child device 200 (8).

  Thereafter, when the user of the child device 200 performs an operation of selecting the additional information acquisition mode (9), the child device 200 transmits an additional information request to the server 500 (10). Upon receiving this additional information request, the server 500 searches for additional information (11), and when the corresponding additional information is found, transmits the additional information to the child device 200 (12). And the subunit | mobile_unit 200 will display the received additional information on the display 201 of the subunit | mobile_unit 200, if additional information is received from the server 500 (13).

  Next, image transfer modes that can be selected when a plurality of slave units are provided in the image display system S according to the present embodiment will be described with reference to FIG. FIG. 9 is an explanatory diagram showing an example of an image display mode by the slave unit in the image transfer mode.

  When a plurality of child devices (here, child devices 200 and 300) are provided in the image display system S, each child device 200 and 300 is connected to each child device 200 in the image displayed on the parent device 100. , 300 can be displayed in an enlarged image in which a partial area desired by the user is enlarged.

  For example, as shown in FIG. 9A, when a map image of the district (B) and the district (C) is displayed on the display 101 of the master device 100 on a 500 m scale, the user of the slave device 200 Assume that a map image of (B) is desired, and a user of handset 300 desires a map image of district (C).

  In this case, the user of each child device 200 or 300 changes the direction of his child device 200 or 300 as shown in FIG. The map image Mb of (B) is displayed, and the map image of the district (C) is displayed on the display 301 of the slave device 300 on a 100 m scale.

  In this case, parent device 100 displays cursors E and Ea indicating areas displayed on child device 200 and child device 300 in the image displayed on display 101, respectively. At this time, the parent device 100 displays the cursors E and Ea with frames made of different line types so that the cursor E corresponding to the child device 200 and the cursor Ea corresponding to the child device 300 can be distinguished.

  Here, for example, when the user of the child device 300 wants to see the map image Mb of the district (B) displayed on the child device 200, the image display system S, as shown in FIG. When the user of the slave unit 200 selects the image transfer mode and shakes the slave unit 200 toward the other slave unit 300, the map image of the district (B) displayed on the slave unit 200 is displayed. Mb can be displayed on the display 301 of the other slave unit 300.

  At this time, handset 200 adds mode information indicating that the image transfer mode has been selected to the positional relationship data, and transmits the data to base unit 100. At this time, since the other slave unit 300 operates in the slave unit mode, the positional relationship data is periodically transmitted to the master unit 100.

  Thereafter, when the user of handset 200 swings handset 200 in the direction of the other handset 300, handset 200 transmits position relationship data indicating the direction and acceleration at that time to base unit 100. . Master device 100 detects that the image transfer mode has been selected from the mode data included in the positional relationship data received from slave device 200.

  Based on the positional relationship data received from the slave device 200 and the positional relationship data received from the slave device 300, the master device 100 detects that the slave device 200 has been swung toward the slave device 300. Then, the same image data as the image data being transmitted to the child device 200 is transmitted to the child device 300.

  That is, in this image transfer mode, it appears that the image data (image Mb in the district (B)) being displayed is transferred from one slave device 200 to the other slave device 300, but in actuality, Based on the change in orientation of the slave unit 200, the master unit 100 transmits the same image data as that transmitted to the slave unit 200 to the slave unit 300.

  Thereby, for example, when a map image or the like corresponding to the outside of the display area of the display 101 of the parent device 100 is displayed on the display 201 of the child device 200, the user of the child device 300 is displaying on the child device 200. If the user of the handset 300 wants to see the map image of the handset 200, even if the map image is in a district that cannot be searched on the display 101 of the handset 100, the handset 200 can easily use the handset 200 by the image transfer mode. The map image currently displayed on 200 can be displayed on the display 301 of the own handset 300 and viewed.

  In the above-described embodiment, the slave device 200 is provided with the additional information acquisition unit 208 that acquires additional information from the server 500. However, the image display system S is configured so that the additional information acquisition unit 208 is provided on the parent device 100 side. May be.

  In the present embodiment, the positional relationship data indicating the relative positional relationship between the child device 200 and the parent device 100 is transmitted from the child device 200 to the parent device 100, and the positional relationship data received by the parent device 100 is analyzed. Thus, the image data corresponding to the relative positional relationship between the child device 200 and the parent device 100 is generated and transmitted to the child device 200. A processing unit for calculating the relative positional relationship and the amount of change in the positional relationship is provided, and displayed on the display unit of the child device 200 based on the relative positional relationship calculated by the processing unit and the amount of change in the positional relationship. A control signal for designating an image area may be transmitted to base unit 100.

  In such a configuration, base unit 100 transmits image data of an area corresponding to the control signal received from slave unit 200 to slave unit 200. As a result, the base unit 100 does not need to analyze the relative positional relationship with the handset 200, thereby reducing the processing load.

  Here, when the additional information acquisition unit 208 is provided on the parent device 100 side and the additional information acquisition mode is selected, the processes executed by the parent device 100, the child device 200, and the server 500, and the flow of data to be transmitted and received Will be described with reference to FIG. FIG. 10 is a sequence diagram showing the processes executed by each of master device 100, slave device 200, and server 500 and the flow of data transmitted and received.

  The processes (1) to (9) shown in FIG. 10 and the flow of data to be transmitted / received are the same as (1) to (9) shown in FIG. The data flow will be described.

  As shown in FIG. 10, when the user performs an operation for acquiring additional information (9), the slave device 200 transmits an additional information request to the parent device 100 (10). When receiving the additional information request (11), master device 100 transfers the additional information request to server 500 (12).

  When the server 500 receives the additional information request from the parent device 100, the server 500 searches for the additional information (13), and when the corresponding additional information is found, transmits the additional information to the parent device 100 (14). When receiving the additional information from server 500 (15), master device 100 transfers the additional information to slave device 200 (16). And the subunit | mobile_unit 200 receives additional information from the main | base station 100 (17), and displays the additional information on the display 201. FIG.

  Thus, by providing the additional information acquisition unit 208 on the parent device 100 side, it is possible to reduce the processing load required when the child device 200 acquires additional information.

It is explanatory drawing which shows the vehicle interior which employ | adopted the image display system which concerns on this embodiment. It is a functional block diagram which shows the structure of the main | base station in the image display system of this embodiment, and a subunit | mobile_unit. It is explanatory drawing which shows an example of the display mode of the image by a subunit | mobile_unit. It is explanatory drawing which shows an example of the display mode of the image by a subunit | mobile_unit. It is explanatory drawing which shows an example of the display mode of the image by a subunit | mobile_unit. It is explanatory drawing which shows an example of the display mode of the image by a subunit | mobile_unit. It is explanatory drawing which shows an example of the combination of the display content by a main | base station and a subunit | mobile_unit. It is a sequence diagram which shows the flow of the data each transmitted and transmitted / received by the main | base station, a subunit | mobile_unit, and a server. It is explanatory drawing which shows an example of the display mode of the image by the subunit | mobile_unit in image transfer mode. It is a sequence diagram which shows the flow of the data each transmitted and transmitted / received by the main | base station, a subunit | mobile_unit, and a server.

Explanation of symbols

100 Master device 101 Display 102 Control unit 103 Storage unit 104 Display control unit 105 Image data transmission unit 106 Positional data reception unit 107 Transmission image generation unit 109 Image database 110 Operation unit 200, 300 Slave unit 201, 301 Display 202 Control unit 203 Reception data storage unit 204 Display control unit 205 Image data reception unit 206 Position relation data transmission unit 207 Position relation detection sensor 208 Additional information acquisition unit 500 Server 502 Communication unit

Claims (4)

The image data of the image displayed on the main display unit, a main unit for transmitting to the portable-configured secondary device, wherein the sub-displays the image data received from the previous SL main unit to the sub-display means as an image An image display system including the apparatus,
The secondary device is
Sensor means for detecting a relative positional relationship with the main device;
Positional relation data transmitting means for transmitting positional relation data indicating the relative positional relation detected by the sensor means to the main device;
The main unit is
Positional relationship data receiving means for receiving the positional relationship data from the secondary device;
When a planar image is displayed on the main display means, a stereoscopic image obtained by converting the planar image into a three-dimensional image is generated, and the relative positional relationship is based on the positional relationship data received by the positional relationship data receiving unit. An image display system comprising: a transmission image generation unit configured to generate image data in which the viewpoint of the stereoscopic image is switched according to the changed relative positional relationship when it is detected . The image data transmitted by the main device includes point information corresponding to each predetermined point in the image,
The secondary device is
Selecting means for selecting a predetermined point in the image displayed on the sub-display means;
When the predetermined point is selected by the selecting means, additional information relating to the selected predetermined point is transmitted to a predetermined server via a communication network based on the point information corresponding to the selected predetermined point. Additional information acquisition means to acquire from
The image display system according to claim 1, wherein the additional information received by the additional information acquisition unit is displayed on the sub display unit . The secondary device is
Receiving data storage means for storing image data received from the main device ;
The image display system according to claim 1, wherein the image data stored in the received data storage unit is displayed on the sub display unit.   A main device for transmitting image data of an image displayed on a main display means to a sub device configured to be portable,
  Positional relationship data acquisition means for acquiring positional relationship data indicating a relative positional relationship between the main device and the sub device;
  When a planar image is displayed on the main display unit, a stereoscopic image obtained by stereoscopicizing the planar image is generated, and the relative position is based on the positional relationship data acquired by the positional relationship data acquisition unit. And a transmission image generation unit configured to generate image data in which a viewpoint of the stereoscopic image is switched according to the changed relative positional relationship when it is detected that the relationship has changed.

Images