JP4880241B2 - Dispensing device and dispensing method - Google Patents

Description

  The present invention relates to a technique for outputting image data displayed on a display device of a navigation system.

  For example, in a vehicle having a large number of seats such as a bus, a display device such as a display is installed in a seat on which a passenger is seated, and a television program, recorded video, or the like is displayed on the display. Cited Document 1 describes a technique for sharing a video source processing device for a display of a navigation device as a display for a rear seat.

Japanese Laid-Open Patent Publication No. 2001-159888

  The technique described in Patent Document 1 described above merely outputs screen data displayed on the front seat navigation system to the rear seat display, and it cannot be said that the navigation system is effectively utilized.

  The present invention has been made in view of such circumstances, and a distribution device that outputs information displayed on a display device of a navigation system to a plurality of terminals and enables operation of the navigation system from each terminal, and The purpose is to provide a distribution method.

  The present invention has been made to achieve the above object, and outputs image data output from a navigation system to each of a plurality of terminals. When operation information for operating the navigation system is input from the terminal, the information is output to the navigation system, and input of operation information from a terminal other than the terminal that has input the operation information is invalidated.

Specifically, for example, a distribution device that connects a navigation system and a plurality of terminals and outputs screen data to each terminal, the first image data input from the navigation system being used as the terminal First distribution means for distributing to each of the terminals, detection means for detecting operation information input from each of the terminals, and operation information output switching means for enabling or disabling input of operation information to the navigation system And operation information output means for outputting operation information for operating the navigation system input from each of the terminals to the navigation system, and when the operation information is detected by the detection means, operation information output switching means, especially to invalidate the output of the operation information from the terminal other than the terminal which has entered the the manipulation information To.

  According to the distribution device and the distribution method of the present invention, information such as a map and a current position displayed on the display device of the navigation system can be displayed on a plurality of display devices. In addition, the navigation system can be operated from a device other than the navigation system. Since information from one navigation system can be output to a plurality of terminals, the cost can be reduced.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram illustrating a system configuration example of the present embodiment. The system of the present embodiment includes a navigation system 1, a distribution device 2, a plurality of terminals 3, and the like. The navigation system 1 is a conventional general navigation system, and the screen data output to the display or the like of the navigation system 1 is also output to the distribution device 2. The distribution device 2 distributes the screen data from the navigation system 1 and the screen data stored therein and outputs the screen data to each terminal 3. Each terminal 3 includes a display device 31, an input device 32, and the like. The display device 31 is a display or the like, and displays screen data output from the navigation system 1 or screen data stored in the distribution device 2. The input device 32 is, for example, a button, a touch panel, etc., and the user can operate the navigation system 1 using the input device 32. Hereinafter, information output from the terminal 3 when the button of the input device 32 is pressed is referred to as operation information.

  In FIG. 1, three terminals 3 are shown, but the number of terminals 3 may be arbitrary and is not limited to three.

  Next, the configuration of the navigation system 1 will be described in detail with reference to FIG.

  In FIG. 2, the navigation system 1 includes an angular velocity sensor 11, an orientation sensor 12, a vehicle speed sensor 13, a controller 14, an input device 15, a storage device 16, a display 17, a voice output device 18, and the like.

  The angular velocity sensor 11 detects a change in the direction of the vehicle by detecting the yaw rate of the vehicle. The direction sensor 12 detects the direction of the vehicle by detecting geomagnetism. The vehicle speed sensor 13 outputs pulses at a time interval proportional to the rotation of the output shaft of the vehicle transmission.

  The input device 15 is, for example, a remote control and a remote control receiving unit, a touch panel, a switch, or the like. The storage device 16 is, for example, a storage medium such as a CD-ROM (Compact Disc-Read Only Memory) or a DVD (Digital Versatile Disk), a drive device for the storage medium, an HDD (Hard Disk Drive), road data, or the like. Map data including Further, the map data may include detailed information on tourist attractions such as buildings, parks, museums, and historic sites. The display 17 displays a map and positions and displays the vehicle on the displayed map. The audio output device 18 outputs audio.

  The controller 14 controls the operation of each peripheral device described above, and includes an AD converter 141, an AD converter 142, a counter 143, a parallel I / O 144, a microprocessor (MPU) 145, a DMA (Direct Memory Access) controller 146, memory 147, and the like.

  The AD converter 141 converts the signal (analog) of the angular velocity sensor 11 into a digital signal. The AD converter 142 converts the signal (analog) of the direction sensor 12 into a digital signal. The counter 143 counts the number of pulses output from the vehicle speed sensor 13, for example, every 0.1 second. The parallel I / O 144 receives an input signal from the input device 15. In addition, operation information from the input device 32 of the terminal 3 is input from the signal line 21 to the parallel I / O 144. The DMA controller 146 transfers the map data read from the storage device 16.

  The MPU 145 operates the conventional general navigation system by executing the program loaded in the memory 147. For example, when a destination is input via the parallel I / O 144, a route is searched from the current position stored in the memory 147, the map data read from the storage unit 16, and the input destination. Then, the searched route and map data are output to the display 17 and the audio data is output to the audio output device 18 to guide to the destination. Further, the MPU 145 scrolls the map displayed on the display 17 in accordance with operation information input via the parallel I / O 144. The MPU 145 displays detailed information on tourist attractions included in the map data on the display 17. The MPU 145 displays the traffic congestion information acquired via the communication network on the display 17. In the present embodiment, the screen data output to the display 17 is also output to the distribution device 2 via the signal line 21.

  FIG. 3 shows a configuration example of the distribution device 2. In FIG. 3, the distribution device 2 includes an MPU 23, a memory 24, a storage unit 25, a distributor 26, a connection unit 27, and the like.

  The screen data output from the navigation system 1 is input to the distribution device 2 through the signal line 21. Further, the operation information is output from the MPU 23 to the navigation system 1 through the signal line 22. The MPU 23 implements the determination unit 231 and the like by executing the program loaded in the memory 24. The determination unit 231 refers to an executable operation table to be described later and determines whether or not the instructed operation is executable. The storage unit 25 stores a program that realizes the determination unit 231 and the like, an executable operation table that stores information indicating executable operations, screen data to be output to the terminal 3, and the like. The distributor 26 distributes screen data to be output to the display device 31 of each terminal 3. Here, since there are two distributors 26, they are referred to as a distributor 261 and a distributor 262 in the case of being particularly distinguished. The distributor 261 distributes the screen data output from the navigation system 1 through the signal line 21. The distributor 262 distributes the screen data stored in the storage unit 25. When each connection unit 27 detects an input of operation information, the connection unit 27 validates or invalidates the input of operation information and switches screen data to be output to each terminal 3.

  In FIG. 2, three connection units 27 are illustrated, but the connection units 27 have the same number of terminals 3 connected to the distribution device 2.

  The configuration of the connection unit 27 will be described in detail. The connection unit 27 includes a screen data switching unit 271, an operation information switching unit 272, an input detection unit 273, and the like. When detecting the operation information output from the input device 32 of the terminal 3, the input detection unit 273 outputs information indicating that the operation information has been input to the input detection unit 273 of the other connection unit 27. Further, when the information indicating that the operation information is input from the input detection unit 273 of the other connection unit 27 is input to the input detection unit 273, the screen data switching unit 271 and the operation information switching of its own connection unit 27 are input. Information indicating that operation information has been input is output to unit 272. The screen data switching unit 271 is, for example, a switch or the like. By switching the switch according to information from the input detection unit 273, the screen data output to the display device 31 of the terminal 3 is changed to the screen data from the navigation system 1, or Then, the screen data stored in the storage unit 25 is switched. The operation information switching unit 272 is, for example, a switch or the like, and enables or disables input reception from the input device 32 of the terminal 3 by switching the switch on or off according to the information from the input detection unit 273.

  Next, an example of an executable operation table stored in the storage unit 25 will be described with reference to FIG. In FIG. 4, the executable operation table 251 stores information indicating operations that can be operated with the input device 32 of the terminal 3.

  Note that the distribution device 2 of this embodiment outputs only the operation information included in the executable operation table 251 to the navigation system 1. Thereby, for example, a user or the like using the input device 32 of the terminal 3 prevents an operation that causes unnecessary confusion for the driver, such as setting a location different from the original destination location as the destination. It becomes possible.

  Next, the operation of the distribution device 2 will be described. In the following description, when the terminals 3 and the connection unit 27 are specifically distinguished and described, for example, “terminal 3a” and “connection unit 27a” are given the same reference numerals for the combinations to be connected. To do.

  The same screen data as the screen data input to the display 17 of the navigation system 1 is input to the distribution device 2. Screen data from the navigation system 1 is input to the distributor 261 through the signal line 21. The distributor 261 distributes the input screen data and outputs each of the distributed screen data to each connection unit 27.

  On the other hand, the MPU 23 reads the image data from the storage unit 25 and outputs the read image data to the distributor 262. The distributor 262 distributes the input screen data, and outputs each of the distributed screen data to each connection unit 27.

  The screen data switching unit 271 of the connection unit 27 receives the screen data from the navigation system 1 and the screen data stored in the storage unit 25. The screen data switching unit 271 outputs the screen data from the navigation system 1 to each terminal 3 unless there is a particular input of information from the input detection unit 273. The same screen as the display 17 of the navigation system 1 is displayed on the display device 31 of each terminal 3.

  FIG. 5 shows an example in which screen data from the navigation system 1 is displayed on the display device 31 of each terminal 3. In FIG. 5, a map is displayed on the screen 501, a vehicle position 502 on which the navigation system 1 is mounted is positioned on the map, and a route 503 searched by the navigation system 1 is displayed.

  A case where the user operates the navigation system 1 using the input device 32a of the terminal 3a will be described. The operation information is input from the input device 32a to the connection unit 27a of the distribution device 2.

  In the connection unit 27a, the operation information is input to the input detection unit 273a and the operation information switching unit 272a. When the input detection unit 273a detects the input of the operation information, the input detection unit 273a outputs operation detection information indicating that the operation information has been input to the other input detection unit 273 such as the input detection unit 273b and the input detection unit 273c. This information may be, for example, on or off of a flag.

  The input detection unit 273b to which the operation detection information is input outputs operation detection information indicating that the operation information has been input to the screen data switching unit 271b, the operation information switching unit 272b, and the like. When the information is received, the screen data switching unit 271b switches the screen data output to the terminal 3 to the screen data read from the storage unit 25. When the operation information switching unit 272b receives the information, the operation information switching unit 272b invalidates the reception of the operation information, and does not output the information even if the operation information is input from the input device 32b of the terminal 3b.

  The screen data switching unit 271c, the operation information switching unit 272c, and the input detection unit 273c perform the same operations as the screen data switching unit 271b, the operation information switching unit 272b, and the input detection unit 273b. That is, the input detection unit 273c outputs operation detection information indicating that operation information has been input to the screen data switching unit 271c, the operation information switching unit 272c, and the like. When receiving the information, the screen data switching unit 271 c switches the screen data output to the terminal 3 to the screen data read from the storage unit 25. When the operation information switching unit 272c receives the information, the operation information switching unit 272c invalidates the input of operation information.

  FIG. 6 shows an example in which the screen data read from the storage unit 25 is displayed on the display device 31 of each terminal 3. In FIG. 6, a screen 601 displays that other users are operating the navigation system 1.

  The operation information output from the input device 32a of the terminal 3a is input to the MPU 23 via the operation information switching unit 272a. When the operation information is input, the determination unit 231 of the MPU 23 determines whether or not the operation indicated by the information can be executed. An example of this operation will be described with reference to FIG.

  When detecting the input of operation information (S701), the determination unit 231 determines whether or not the operation can be executed (S702). Specifically, for example, the determination unit 231 reads the executable operation table 251 from the storage unit 25 and determines whether the operation indicated in the input operation information is included in the table. In the present embodiment, since the executable operation table 251 includes information indicating the executable operation, the determination unit 231 determines that the input operation is executable when the input operation is included in the table. To do.

  If the input operation is executable as a result of the determination in S702, the determination unit 231 outputs the input operation information to the navigation system 1 through the signal line 22 (S703).

  If the input operation cannot be executed as a result of the determination in S702, the determination unit 231 outputs information indicating that the operation cannot be executed to the display device 31a of the terminal 3a that has output the operation information (S704). ), The operation information is not output and the process returns to the operation input waiting state. The display device 31a of the terminal 3a displays a notification indicating that the operation is impossible.

  FIG. 8 shows an example of a screen for notifying that operation is impossible. In FIG. 8, a screen 801 displays that the instructed operation cannot be performed.

  The MPU 145 of the navigation system 1 performs processing such as map scrolling, map scale change, and traffic jam information output in accordance with the input operation information. When the screen data is output to the display 17 and the distribution device 2 by this processing, the screen data is displayed on the display device 31a of the terminal 3a that has input the operation information. FIG. 9 shows an example of a screen displayed on the display 17 and the display device 32a. In FIG. 9, a screen 901 is an example in which detailed information on tourist attractions is displayed. As shown in the detailed information 902 as an example, information such as business hours and entrance fee is displayed.

  As a result, the user can display, for example, zoom, display area movement, traffic jam information, detailed information on the location included in the map data of the navigation system 1, and the like. Further, while the navigation system 1 is operated on a certain terminal 3, it is impossible to operate the navigation system 1 on another terminal 3.

  When the operation information from the terminal 3 is not input, the input detection unit 273a outputs operation end information indicating the operation end to the other input detection unit 273 such as the input detection unit 273b and the input detection unit 273c. In order to detect the end of operation, for example, the input detection unit 273 starts measuring time by a counter or the like every time operation information is input, and determines that the operation is ended when there is no input of predetermined time operation information. May be.

  The input detection unit 273b to which the information indicating the operation end is input outputs the operation end information indicating the operation end to the screen data switching unit 271b and the operation information switching unit 272b. When the information is received, the screen data switching unit 271b switches the screen data output to the terminal 3 to the screen data output from the navigation system 1. Further, when the operation information switching unit 272b receives the information, the operation information switching unit 272b validates the input of the operation information and enables the operation information to be output from the input device 32b of the terminal 3b. The screen data switching unit 271c, the operation information switching unit 272c, and the input detection unit 273c perform the same operations as the screen data switching unit 271b, the operation information switching unit 272b, and the input detection unit 273b.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like within a scope not departing from the gist of the present invention.

  For example, in the above-described embodiment, the executable operations are stored in the table. On the contrary, the non-executable operations may be stored in the table to determine whether or not the operations can be performed. .

  Further, in the above-described embodiment, the input detection unit determines that the operation is ended when there is no operation information input for a predetermined time. However, this operation may be performed by other configurations such as the MPU and each switching unit. Good.

  In the above-described embodiment, while a certain user is operating the navigation system, the screen data stored in the distribution device is output to the display device of another user. However, the present invention is not limited to this. The screen data output from the navigation system may be output. In this case, the distribution apparatus may display, in characters or the like, that other users are operating on a part of the screen data output from the navigation system on a display device of a user other than the operating user. .

  Further, some or all of the functions such as the screen data switching unit, the operation information switching unit, and the input detection unit may be realized by executing a program loaded into the memory by the MPU. In that case, for example, the terminal that has output the operation information and the date and time when the information is input are stored in a table or the like, and the screen data to be output to each terminal and the operation information are stored by referring to the table. Control the output.

It is a figure which shows the system configuration example of one Embodiment of this invention. In this embodiment, it is a figure which shows the structural example of a navigation system. In this embodiment, it is a figure which shows the structural example of a distribution apparatus. In this embodiment, it is an example of an executable operation table. In this embodiment, it is an example of a screen displayed on the display device of a terminal. In this embodiment, it is an example of a screen displayed on the display device of a terminal. In this embodiment, it is a figure explaining the operation example of a distribution apparatus. In this embodiment, it is an example of a screen displayed on the display device of a terminal. In this embodiment, it is an example of a screen displayed on the display device of a terminal.

Explanation of symbols

  1: navigation system, 2: distribution device, 3: terminal, 31: display device, 32: input device, 11: angular velocity sensor, 12: bearing sensor, 13: vehicle speed sensor, 14: controller, 15: input device, 16: Storage device, 17: Display, 18: Audio output device, 141: AD converter, 142: AD converter, 143: Counter, 144: Parallel I / O, 145: MPU, 146: DMA controller, 147: Memory, 21 : Signal line, 22: signal line, 21: screen data interface, 22: operation information interface, 23: MPU, 231: determination unit, 24: memory, 25: storage unit, 26: distributor, 27: connection unit, 271 : Screen data switching unit, 272: Operation information switching unit, 273: Input detection unit, 251: Executable operation table, 501: Screen , 502: vehicle position, 503: route, 601: screen, 801: screen, 901: screen, 902: detailed information

Claims (3)

A distribution device that connects a navigation system and a plurality of terminals, and outputs screen data to each terminal,
First distribution means for distributing first image data input from the navigation system to each of the terminals;
Detecting means for detecting operation information input from each of the terminals;
Operation information output switching means for enabling or disabling input of operation information to the navigation system;
Operation information output means for outputting operation information for operating the navigation system input from each of the terminals to the navigation system ;
When the operation information is detected by the detection means, the operation information output switching means invalidates the output of operation information from a terminal other than the terminal that has input the operation information.
Dispensing apparatus according to claim. The dispensing device according to claim 1 , comprising:
Screen data storage means for storing second screen data;
Second distribution means for distributing the second screen data read from the screen data storage means to each of the terminals;
Screen data switching means for switching the first screen data or the second screen data to output to each terminal,
When the operation information is detected by the detection means, the screen data switching means outputs the screen data to a terminal other than the terminal that has input the operation information from the first screen data to the second screen. A distribution device characterized by switching to data for output. A distribution method by a distribution device that connects a navigation system and a plurality of terminals and outputs screen data to each of the terminals,
First distribution means for distributing first image data input from the navigation system to each of the terminals;
Detecting means for detecting operation information input from each of the terminals;
Operation information output switching means for enabling or disabling input of operation information to the navigation system;
Operation information output means for outputting operation information for operating the navigation system input from each of the terminals to the navigation system ;
Executing the step of invalidating the output of operation information from a terminal other than the terminal that has input the operation information when the operation information is detected
Distribution method comprising.

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