JP2012225661A - Map output apparatus, map output method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem that a conventional information system can display a map corresponding to a specified position only on one apparatus but cannot display similar maps between different apparatuses.SOLUTION: An information system is composed of: a first map output apparatus including a first map information storage part capable of storing first map information, an information acquisition part for acquiring position information, a first map information acquisition part for acquiring first map information corresponding to the position information, a map synchronizing information acquisition part for acquiring map synchronizing information, a first transmission part for transmitting the map synchronizing information to a second map output apparatus, and a first output part for outputting the first map information; and the second map output apparatus including a second receiving part for receiving the map synchronizing information and a second output part for outputting second map information. In the information system, similar maps can be displayed between different apparatuses at similar timing.

Description

  The present invention relates to a map output device that outputs a map.

  Conventionally, a navigation system and apparatus have been developed (see Patent Document 1).

JP 2010-117304 A

  However, in the conventional information system, a map corresponding to a designated position can be displayed only in one device, and a similar map cannot be displayed between different devices.

  The information system of the first invention is an information system comprising a first map output device and a second map output device, wherein the first map output device stores first map information which is information relating to a map. A first map information storage unit, a position information acquisition unit that acquires position information that is information about the position, and a first map information acquisition that acquires first map information corresponding to the position information from the first map information storage unit A map synchronization information acquisition unit that acquires map synchronization information that is information related to synchronization with the first map information acquired by the first map information acquisition unit, and the map synchronization information is transmitted to the second map output device And a first output unit that outputs the first map information acquired by the first map information acquisition unit, and the second map output device includes a second reception unit that receives the map synchronization information; , Map information corresponding to the map synchronization information Te, and the first map information is information system comprising a second output section for outputting the second map information is different from the map information.

  With such a configuration, the displayed map can be synchronized between different devices.

  Further, in the information system of the second invention, in contrast to the first invention, the map synchronization information is second map information, and the first map output device stores second map information which is information relating to the map. A second map information storage unit, the map synchronization information acquisition unit acquires second map information corresponding to the position information from the second map information storage unit, and the second output unit is a second reception unit Is an information system that outputs the received second map information.

  With such a configuration, a map to be displayed can be synchronized between different devices based on the map information.

  Further, in the information system of the third invention, in contrast to the first invention, the map synchronization information is position information, the map synchronization information acquisition unit acquires position information, and the second map output device A second map information storage unit that can store second map information that is information about the map, and a second map that acquires second map information corresponding to the position information received by the second reception unit from the second map information storage unit An information acquisition unit is further provided, and the second output unit is an information system that outputs the second map information acquired by the second map information acquisition unit.

  With such a configuration, the map to be displayed can be synchronized between different devices based on the position information.

  Further, in the information system of the fourth aspect of the present invention, the second map output device sends a map synchronization information request instruction, which is an instruction to request map synchronization information, to any one of the first to third aspects of the first map. The first map output device further includes a first receiver for receiving a map synchronization information request instruction, and the map synchronization information acquisition unit is configured by the first receiver. The information system acquires map synchronization information in accordance with a received map synchronization information request instruction.

  With such a configuration, it is possible to synchronize the displayed map in accordance with the map synchronization information request instruction.

  The information system of the fifth aspect of the invention is an information system in which the first map output device and the second map output device perform short-range wireless communication with respect to any one of the first to fourth inventions. is there.

  With such a configuration, a map to be displayed can be synchronized by short-range wireless communication.

  According to the information system or the like according to the present invention, a similar map can be displayed between different devices at the same timing.

Conceptual diagram of information system 1 according to Embodiment 1 Block diagram of the first map output device 11 and the second map output device 12 A flowchart for explaining the overall operation of the first map output device 11 The figure which shows the example of the same map information The figure which shows the example of the same map information The figure which shows the example of the same map information Conceptual diagram of information system 2 in the second embodiment Block diagram of the first map output device 21 and the second map output device 22 A flowchart for explaining the overall operation of the first map output device 21 The figure which shows the example of the same map information The figure which shows the example of the same map information Conceptual diagram of information system 3 according to Embodiment 3 Block diagram of the first map output device 31 and the second map output device 32 A flowchart for explaining the overall operation of the first map output device 31 A flowchart for explaining the overall operation of the second map output device 32 Overview of the computer system in the above embodiment Block diagram of a computer system in the above embodiment

  Hereinafter, embodiments of an information system and the like according to the present invention will be described with reference to the drawings. In addition, since the component which attached | subjected the same code | symbol in embodiment performs the same operation | movement, description may be abbreviate | omitted again. In addition, in a storage unit or the like in which predetermined information or the like can be stored, the process in which information or the like is stored in the storage unit is not limited. For example, information or the like may be stored in a storage unit or the like via a recording medium. Information transmitted via a communication line or the like may be stored in a storage unit or the like. Further, information input via an input device may be stored in a storage unit or the like. Also, in the present embodiment, the search is to detect information that matches the specified information or acquire the detected information from the information to be searched using the specified information. This means that the information associated with the detected information is acquired, and is widely understood. In addition, the format, content, and the like of each information described in this embodiment are merely examples, and the format, content, and the like are not limited as long as the meaning of each information can be indicated.

(Embodiment 1)
In the present embodiment, the first map output device acquires the first map information and the second map information, the first map information is obtained by the first map output device, and the second map information is obtained by the second map information output device. An information system that outputs the same map information by the first map output device and the second map output device will be described.

  FIG. 1 is a conceptual diagram of an information system 1 in the present embodiment. In FIG. 1, the first map output device 11 is, for example, a car navigation device mounted on an automobile, a navigation device mounted on another vehicle, or the like. In FIG. 1, the second map output device 12 is a terminal device such as a portable game machine, a mobile phone, or a PDA (Personal Digital Assistant). The first map output device may be a terminal device, and the second map output device may be a navigation device or the like. The communication between the first map output device 11 and the second map output device 12 is usually near field communication such as Bluetooth (registered trademark). The communication between the first map output device 11 and the second map output device 12 may be communication using a wireless LAN such as Wi-Fi (registered trademark) or other wireless communication.

  FIG. 2 is a block diagram of the first map output device 11 and the second map output device 12 in the present embodiment. The first map output device 11 includes a first map information storage unit 111, a second map information storage unit 112, a first reception unit 113, a position information acquisition unit 114, a first map information acquisition unit 115, and a map synchronization information acquisition unit 116. The first transmission unit 117 and the first output unit 118 are provided. The second map output device 12 includes a second receiving unit 121 and a second output unit 122.

  The first map information storage unit 111 can store first map information. The first map information is map information. Map information is information about a map. Maps include, for example, topographic maps, topographic maps, geological maps, land use maps, housing maps, route maps, road maps, guide maps, aerial photographs and satellite photographs that can understand topographical features, roads, etc. Etc. are filled in. The map may be a plan view (two-dimensional), a three-dimensional view (three-dimensional), a bird's-eye view, or the like.

  The map information is, for example, map image information. The image information is, for example, raster data or vector data. When the image information is raster data, the map information may have image information corresponding to a plurality of scales. The image information corresponding to a plurality of scales includes, for example, image information with a large scale, medium-scale image information, and image information with a small scale for the same area. The map information may be obtained by dividing the map into tiles. The map information may be in the KIWI format used in car navigation.

  Moreover, the map information may have point information. The point information is information indicating points on the map. The point information includes a point identifier for identifying the point, point position information indicating the position of the point, and the like. Further, the point information may include, for example, point type information indicating the type of the point, point color information indicating the color of the point on the map indicated by the color of the point or the map information, and the like.

  The location identifier is, for example, “007”, “P-023”, “Tokyo Station”, “Mt. Fuji”, or the like. The point position information is position information indicating a position. The position information includes, for example, longitude and latitude information indicating longitude and latitude, coordinate information indicating coordinates, coordinate axis information indicating coordinate axes, altitude information indicating altitude, distance information indicating distance, and the like. The longitude / latitude information is, for example, “(N12.34.56.78, E123.45.67.89)” or “(12 degrees north latitude, 123 degrees east longitude)”. The coordinate information is, for example, “(X, Y) = (3,4)”, “(12, 24)”, and the like. The coordinate axis information includes, for example, “X axis”, “Y direction”, “Z”, and the like. The altitude information is, for example, “234 m”, “5,432 m”, or the like. The distance information is, for example, “100 m” or “15 km”. The point type information includes, for example, “road”, “station”, “restaurant”, “convenience store”, “others”, and the like. The point color information is color information indicating a color. The color information is, for example, “RED”, “255, 128, 64”, “#FFFEEDD”, or the like.

  The map information is known as a two-dimensional online map, an electronic map, or the like, and thus detailed description thereof is omitted.

  The first map information storage unit 111 is preferably a nonvolatile recording medium, but can also be realized by a volatile recording medium.

  The second map information storage unit 112 can store second map information. The second map information is map information. The second map information is usually map information different from the first map information. “Different map information” refers to map information of different types, contents, scales, sizes (dimensions), and the like. The second map information is map information indicating, for example, a so-called schematic map or a deformed map. An approximate map is, for example, a map from which points or roads on the map have been deleted, or where only important points are drawn. The deformed map is, for example, an abstraction of buildings, stations, roads, mountains, rivers, etc. on the map, exaggerated features such as their size and shape, and their colors clearly It is a map that has been deleted or points or roads have been deleted. The second map information may be the same map information as the first map information, or the same map information as the first map information.

  The second map information storage unit 112 is preferably a nonvolatile recording medium, but can also be realized by a volatile recording medium.

  The first reception unit 113 receives a map output instruction. The map output instruction is an instruction related to outputting map information. The map output instruction includes, for example, an instruction to display map information, an instruction to scroll map information, an instruction to change the type of map information, and an instruction to enlarge / reduce map information.

  The first receiving unit 113 may receive an instruction other than the map output instruction. The instructions other than the map output instruction are, for example, a power ON instruction or a power OFF instruction. When the first receiving unit 113 receives an instruction other than the map output instruction, the first map output device 11 normally performs processing according to the received instruction.

  Also, these instructions are usually based on user operations. The operation includes, for example, a button operation, a tap operation on the touch panel, a drag operation, a flick operation, a pinch-out operation, a pinch-in operation, and the like.

  In addition, reception means reception of information input from an input device such as a keyboard, mouse, touch panel, reception of information transmitted via a wired or wireless communication line, an optical disk, a magnetic disk, a recording medium such as a semiconductor memory This is a concept including reception of information read out from.

  Output is a concept that includes display on a display, projection using a projector, transmission to an external device, storage in a recording medium, delivery of a processing result to another processing device or another program, and the like. is there. In addition, regarding transmission, accumulation, and delivery of processing results, an output target is finally presented to the user.

  The instruction input means in the first reception unit 113 may be anything such as a keyboard, mouse, or menu screen. The first reception unit 113 can be realized by a device driver for input means such as a keyboard, control software for a menu screen, or the like.

  The position information acquisition unit 114 acquires position information. The position information is, for example, current position information indicating the current position of the first map output device 11 or display position information for specifying a display area of map information. The display position information is, for example, information indicating the center position of the map information, information indicating the positions of two or more points indicating the display area of the map information, and the like.

  Note that the timing of acquiring the position information usually depends on the instruction received by the first receiving unit 113, but it does not matter. Further, since the method and procedure for acquiring position information are well known, detailed description thereof will be omitted.

  The position information acquisition unit 114 can usually be realized by hardware (dedicated circuit) such as a so-called GPS or a device that receives position information from a base station for mobile communication. Further, the position information acquisition unit 114 may be realized by an MPU, a memory, or the like. The processing procedure of the position information acquisition unit 114 is usually realized by software, and the software is recorded in a recording medium such as a ROM.

  The first map information acquisition unit 115 acquires first map information from the first map information storage unit 111. The first map information acquisition unit 115 acquires first map information corresponding to the position information acquired by the position information acquisition unit 114. Further, the first map information acquisition unit 115 may acquire the first map information in accordance with the instruction received by the first reception unit 113. Note that the method and procedure for acquiring map information are well-known and will not be described in detail.

  The first map information acquisition unit 115 can be usually realized by an MPU, a memory, or the like. The processing procedure of the first map information acquisition unit 115 is usually realized by software, and the software is recorded in a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The map synchronization information acquisition unit 116 acquires map synchronization information. The map synchronization information is information relating to synchronization with the first map information. Here, “synchronization” means matching the same contents. In addition, “synchronization” includes the meaning of matching the same timing. "Synchronization" includes these meanings and is widely understood. That is, the map synchronization information is information for outputting map information (second map information) having the same contents as the first map information. The map synchronization information may be information for changing the map information (second map information) in accordance with the change timing of the first map information. Further, the map synchronization information may be information for changing other contents in accordance with the timing of changing the contents of the first map information.

  In the present embodiment, the map synchronization information is second map information. That is, the map synchronization information acquisition unit 116 acquires the second map information stored in the second map information storage unit 112 as map synchronization information. The map synchronization information acquisition unit 116 acquires second map information corresponding to the position information acquired by the position information acquisition unit 114. Further, the map synchronization information acquisition unit 116 may acquire the second map information according to the instruction received by the first reception unit 113. Note that the method and procedure for acquiring map information are well-known and will not be described in detail.

  In addition, the map synchronization information acquisition unit 116 may acquire the second map information once every n times of acquisition of the position information of the position information acquisition unit 114, for example. Further, for example, the map synchronization information acquisition unit 116 accumulates the position information acquired by the position information acquisition unit 114 in an arbitrary storage area, takes a history, and when there is a change in the position indicated by the position information in the history Only the second map information may be acquired.

  The map synchronization information acquisition unit 116 can usually be realized by an MPU, a memory, or the like. The processing procedure of the map synchronization information acquisition unit 116 is usually realized by software, and the software is recorded in a recording medium such as a ROM. Note that the map synchronization information acquisition unit 116 may be realized by hardware (dedicated circuit) such as a so-called GPS or a device that receives position information from a mobile communication base station.

  The first transmission unit 117 transmits the second map information acquired by the map synchronization information acquisition unit 116 to the second map output device 12. In addition, the first transmission unit 117 may transmit the position information acquired by the position information acquisition unit 114. When transmitting the position information, the first transmission unit 117 normally transmits the position information together with the second map information.

  Moreover, the 1st transmission part 117 may transmit 2nd map information once for n times of acquisition of the 2nd map information of the map synchronous information acquisition part 116, for example. Moreover, the 1st transmission part 117 accumulate | stores the 2nd map information which the map synchronous information acquisition part 116 acquired in arbitrary storage areas, takes a log | history, and there exists a change in the map which 2nd map information shows in the said log | history Only in this case, the second map information may be transmitted. The first transmission unit 117 is usually realized by a wireless or wired communication unit, but may be realized by a broadcasting unit.

  The first output unit 118 outputs the first map information acquired by the first map information acquisition unit 115. The first output unit 118 may or may not include an output device such as a display or a speaker. The first output unit 118 may be implemented by output device driver software, or output device driver software and an output device.

  The second reception unit 121 receives the second map information transmitted by the first transmission unit 117. The second receiving unit 121 is usually realized by a wireless or wired communication means, but may be realized by a means for receiving a broadcast.

  The second output unit 122 outputs the second map information received by the second receiving unit 121. The second output unit 122 may or may not include an output device such as a display or a speaker. The second output unit 122 may be realized by driver software for an output device, driver software for an output device, an output device, or the like.

  Next, the operation of the information system 1 will be described.

  FIG. 3 is a flowchart showing the overall operation of the first map output device 11.

  (Step S301) The first receiving unit 113 determines whether an instruction has been received. If accepted, the process proceeds to step S302; otherwise, the process proceeds to step S304.

  (Step S302) The first reception unit 113 determines whether or not the received instruction is a map output instruction. If it is a map output instruction, the process proceeds to step S304; otherwise, the process proceeds to step S303.

  (Step S303) The first map information output apparatus 11 performs a process according to the instruction received in Step S301, and returns to Step S301.

  (Step S304) The position information acquisition unit 114 acquires position information.

  (Step S305) The first map information acquisition unit 115 searches the first map information storage unit 111 for the first map information corresponding to the position information acquired in step S304, and acquires the first map information.

  (Step S306) The map synchronization information acquisition unit 117 searches the second map information storage unit 112 for second map information corresponding to the position information acquired in step S304, and acquires the second map information.

  (Step S307) The first transmission unit 117 transmits the second map information acquired in step S306 to the second map output device 12.

  (Step S308) The first output unit 118 outputs the first map information acquired in Step S305, and returns to Step S301.

  In the flowchart of FIG. 3, the process may be terminated by powering off or a process termination interrupt.

  In the flowchart of FIG. 3, the first map information may be output immediately after the acquisition of the first map information, and then the acquisition of the second map information and the transmission of the second map information may be performed. That is, the output of the first map information may be after the acquisition of the first map information, and the transmission of the second map information may be after the acquisition of the second map information, and the order does not matter.

  Next, the overall operation of the second map output device 12 will be described.

  (Step S401) The second receiving unit 121 determines whether or not the second map information has been received. If received, the process proceeds to step S402; otherwise, the process returns to step S401.

  (Step S402) The second output unit 122 outputs the second map information received in Step S401, and returns to Step S401.

  Note that in the overall operation of the second map output device 12, the processing may be terminated by powering off or interruption for aborting the processing.

(Concrete example)
Next, a specific example of the operation of the information system 1 will be described. In this specific example, it is assumed that the first map output device 11 is a navigation device (hereinafter referred to as “car navigation”) mounted on an automobile. Moreover, the 2nd map output device 12 shall be a portable game machine.

(Example 1)
First, it is assumed that the user turns on the car engine and the power of the car navigation system is turned on. Then, the position information acquisition unit 114 determines that it is the timing for acquiring the current position information, and acquires the current position information. Then, the first map information acquisition unit 115 acquires first map information corresponding to the current position information from the first map information storage unit 111. Here, the 1st map information acquisition part 115 shall acquire the 1st map information shown in FIG.

  Next, the map synchronization information acquisition unit 116 acquires second map information corresponding to the current position information acquired by the position information acquisition unit 114 from the second map information storage unit 112. Here, it is assumed that the map synchronization information acquisition unit 116 has acquired the second map information shown in FIG. The second map information in FIG. 5 is map information obtained by deleting the point information and the road information indicating the narrow road from the first map information in FIG.

  Next, the 1st transmission part 117 transmits the 2nd map information of FIG. 5 to a portable game machine, and the 1st output part 118 outputs the 1st map information of FIG.

  Next, the 2nd receiving part 121 receives the 2nd map information of FIG. 5, and the 2nd output part 122 outputs the 2nd map information of FIG.

(Example 2)
First, it is assumed that an arbitrary map is displayed in the car navigation system. Assume that the user continues to scroll the map in this state. Then, the position information acquisition unit 114 acquires display position information indicating the center position of the map being scrolled. The first map information acquisition unit 115 acquires the first map information corresponding to the display position information from the first map information storage unit 111, and the first output unit 118 outputs the first map information. . During this time, since the display position information acquired by the position information acquisition unit 114 is frequently changed, the map synchronization information acquisition unit 116 does not acquire the second map information.

  Next, assume that the user stops scrolling the map. At this time, the first output unit 118 outputs the first map information shown in FIG. Then, the map synchronization information acquisition unit 116 determines that it is the acquisition timing of the second map information, acquires the display position information acquired by the position information acquisition unit 114 when the scrolling is stopped, and displays the display position information. Corresponding second map information is acquired from the second map information storage unit 112. Here, it is assumed that the map synchronization information acquisition unit 116 has acquired the second map information shown in FIG. The second map information in FIG. 6 is map information obtained by deforming the first map information in FIG.

  Next, the 1st transmission part 117 transmits the 2nd map information of FIG. 6 to a portable game machine.

  Next, the second receiving unit 121 receives the second map information in FIG. 6, and the second output unit 122 outputs the second map information in FIG. 6.

  As mentioned above, according to the information system 1 by this Embodiment, a map can be synchronized using 2nd map information.

  Further, according to the information system 1 according to the present embodiment, for example, the number of times of acquisition of the second map information by the map synchronization information acquisition unit 116 and the second map by the first transmission unit 117 according to the change of the position information. By reducing the number of times of information transmission, the amount of information transmitted from the first map output device 11 to the second map output device 12 can be reduced.

  Further, according to the information system 1 according to the present embodiment, for example, even if the second map output device 12 does not include a means for acquiring position information such as GPS, the first map output device 11 outputs. A map similar to a map can be output.

  Further, according to the information system 1 according to the present embodiment, for example, a person similar to the map viewed by the person at the front seat using the first map output device 11 through the short-range wireless communication, It can be browsed with the two-map output device 12.

  In the present embodiment, the first map information acquisition unit 115 may acquire second map information. In this case, the first map information acquisition unit 115 acquires the second map information acquired by the map synchronization information acquisition unit 116 and the first map information acquisition unit 115.

(Embodiment 2)
In the present embodiment, the first map output device acquires the first map information and the position information, the second map output device acquires the second map information corresponding to the position information, and the first map output An information system that outputs the first map information by the device, the second map information by the second map information output device, and outputs the same map information by the first map output device and the second map output device will be described.

  FIG. 7 is a conceptual diagram of the information system 2 in the present embodiment. In FIG. 7, the first map output device 21 is, for example, a terminal device such as a smart phone (high function mobile phone), a mobile phone, a portable digital music player having a communication function, or a portable game machine. In FIG. 7, the second map output device 22 is mounted on, for example, a display / audio (an audio device with a display) mounted on a vehicle, a car navigation device mounted on a vehicle, or another vehicle. Navigation device. The first map output device may be a navigation device and the second map output device may be a terminal device. The communication between the first map output device 21 and the second map output device 22 is usually near field communication such as Bluetooth (registered trademark). The communication between the first map output device 21 and the second map output device 22 may be communication using a wireless LAN such as Wi-Fi (registered trademark) or other wireless communication.

  FIG. 8 is a block diagram of the first map output device 21 and the second map output device 22 in the present embodiment. The first map output device 21 includes a first map information storage unit 111, a first reception unit 113, a position information acquisition unit 114, a first map information acquisition unit 115, a map synchronization information acquisition unit 216, a first transmission unit 217, a first One output unit 118 is provided. The second map output device 22 includes a second map information storage unit 223, a second reception unit 221, a second map information acquisition unit 224, and a second output unit 222.

  The map synchronization information acquisition unit 216 acquires map synchronization information. In the present embodiment, the map synchronization information is position information. That is, the map synchronization information acquisition unit 216 acquires the position information acquired by the position information acquisition unit 114 as map synchronization information. Note that the map synchronization information acquisition unit 216 may acquire the position information directly instead of the position information acquisition unit 114. Note that the position information acquisition method and procedure are the same as those of the position information acquisition unit 114, and a description thereof will be omitted.

  Further, the map synchronization information acquisition unit 216 may acquire the position information once every n times of acquisition of the position information by the position information acquisition unit 114, for example. In addition, the map synchronization information acquisition unit 216 accumulates the position information acquired by the position information acquisition unit 114 in an arbitrary storage area, takes a history, and when the position indicated by the position information changes in the history, for example. Only the position information may be acquired.

  The map synchronization information acquisition unit 216 can usually be realized by an MPU, a memory, or the like. The processing procedure of the map synchronization information acquisition unit 216 is usually realized by software, and the software is recorded in a recording medium such as a ROM. Note that the map synchronization information acquisition unit 216 may be realized by hardware (dedicated circuit) such as a so-called GPS or a device that receives position information from a base station for mobile communication.

  The first transmission unit 217 transmits the position information acquired by the map synchronization information acquisition unit 216 to the second map output device 22.

  Moreover, the 1st transmission part 217 may transmit a positional information once for n times of acquisition of the positional information of the map synchronous information acquisition part 216, for example. In addition, the first transmission unit 217 accumulates the position information acquired by the map synchronization information acquisition unit 216 in an arbitrary storage area, takes a history, and in the history, only when the position indicated by the position information has changed, The position information may be transmitted. The first transmission unit 217 is normally realized by a wireless or wired communication unit, but may be realized by a broadcasting unit.

  The second map information storage unit 223 can store second map information. Since the second map information storage unit 223 is the same as the second map information storage unit 112 described above, detailed description thereof is omitted.

  The second reception unit 221 receives the position information transmitted from the first transmission unit 217. The second receiving unit 221 is usually realized by wireless or wired communication means, but may be realized by means for receiving broadcasts.

  The second map information acquisition unit 224 acquires second map information from the second map information storage unit 223. The second map information acquisition unit 224 acquires second map information corresponding to the position information received by the second reception unit 221. Note that the method and procedure for acquiring map information are well-known and will not be described in detail.

  In addition, the second map information acquisition unit 224 may acquire the second map information, for example, once every n times when the second reception unit 221 receives the position information. In addition, for example, the second map information acquisition unit 224 accumulates the position information received by the second reception unit 221 in an arbitrary storage area, takes a history, and the position indicated by the position information in the history has a change. Only the second map information may be acquired.

  The second map information acquisition unit 224 can usually be realized by an MPU, a memory, or the like. The processing procedure of the second map information acquisition unit 224 is usually realized by software, and the software is recorded in a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The second output unit 222 outputs the second map information acquired by the second map information acquisition unit 224. The second output unit 222 may or may not include an output device such as a display or a speaker. The second output unit 222 may be implemented by output device driver software or output device driver software and an output device.

  Next, the operation of the information system 2 will be described.

  FIG. 9 is a flowchart showing the overall operation of the first map output device 21. In FIG. 9, steps S901 to S905 are the same as steps S301 to S305 in FIG.

  (Step S906) The map synchronization information acquisition unit 216 acquires the position information acquired in step S904.

  (Step S907) The first transmission unit 217 transmits the position information acquired in Step S906 to the second map output device 22.

  (Step S908) The first output unit 118 outputs the first map information acquired in Step S905, and returns to Step S901.

  In the flowchart of FIG. 9, the process may be terminated by powering off or a process termination interrupt.

  In the flowchart of FIG. 9, the first map information may be output immediately after the acquisition of the first map information, and then the acquisition of the position information and the transmission of the position information may be performed. That is, the output of the first map information may be after the acquisition of the first map information, and the transmission of the position information may be after the acquisition of the position information, and the order does not matter.

  Next, the overall operation of the second map output device 22 will be described.

  (Step S401) The second receiving unit 221 determines whether or not position information has been received. If received, the process proceeds to step S402; otherwise, the process returns to step S401.

  (Step S402) The second map information acquisition unit 224 searches the second map information storage unit 223 for second map information corresponding to the position information acquired in step S401, and acquires the second map information.

  (Step S403) The second output unit 222 outputs the second map information acquired in Step S402, and returns to Step S401.

  Note that in the overall operation of the second map output device 12, the processing may be terminated by powering off or interruption for aborting the processing.

(Specific example 1)
Next, a specific example of the operation of the information system 2 in which the first map output device 21 is a smartphone and the second map output device 22 is a display audio (hereinafter referred to as a car audio) mounted on an automobile will be described. To do.

  First, it is assumed that the user performs an operation of outputting a map on the smartphone. Then, the first reception unit 113 determines that a map output instruction has been received. Then, the position information acquisition unit 114 determines that it is the timing for acquiring the current position information from the determination that the first reception unit 113 has received the map output instruction, and acquires the current position information. Then, the first map information acquisition unit 115 acquires first map information corresponding to the current position information from the first map information storage unit 111. Here, the 1st map information acquisition part 115 shall acquire the 1st map information shown in FIG.

  Next, the map synchronization information acquisition unit 216 acquires the current position information acquired by the position information acquisition unit 114.

  Next, the first transmission unit 217 transmits the current position information acquired by the map synchronization information acquisition unit 216 to the car audio, and the first output unit 118 outputs the first map information of FIG.

  Next, the second reception unit 221 receives current position information, and the second map information acquisition unit 224 acquires second map information corresponding to the current position information from the second map information storage unit 223. Here, the 2nd map information acquisition part 224 shall acquire the 2nd map information shown in FIG. In addition, the 2nd map information of FIG. 11 is map information from which the display content and display format differ from the 1st map information of FIG. And the 2nd output part 222 outputs the 2nd map information of FIG.

(Specific example 2)
Next, a specific example of the operation of the information system 2 in which the first map output device 21 is a portable game machine and the second map output device 22 is a navigation device (car navigation system) mounted on an automobile will be described.

  First, it is assumed that an arbitrary map is displayed on the portable game machine. Assume that the user continues to scroll the map in this state. Then, the position information acquisition unit 114 acquires display position information indicating the center position of the map being scrolled. The first map information acquisition unit 115 acquires the first map information corresponding to the display position information from the first map information storage unit 111, and the first output unit 118 outputs the first map information. . During this time, since the display position information acquired by the position information acquisition unit 114 is frequently changed, the map synchronization information acquisition unit 216 does not acquire position information.

  Next, assume that the user stops scrolling the map. At this time, the first map output device 11 outputs the first map information shown in FIG. Then, the map synchronization information acquisition unit 116 determines that it is the timing for acquiring the position information, and acquires the display position information acquired by the position information acquisition unit 114 when the scrolling is stopped. Then, the first transmission unit 217 transmits the display position information acquired by the map synchronization information acquisition unit 216 to the car navigation system.

  Next, the second reception unit 221 receives display position information, and the second map information acquisition unit 224 acquires second map information corresponding to the display position information from the second map information storage unit 223. Here, the 2nd map information acquisition part 224 shall acquire the 2nd map information shown in FIG. And the 2nd output part 222 outputs the 2nd map information of FIG.

  As described above, according to the information system 2 according to the present embodiment, the maps can be synchronized using the position information.

  In addition, according to the information system 2 according to the present embodiment, for example, the number of times position information is acquired by the map synchronization information acquisition unit 216 and the transmission of position information by the first transmission unit 217 according to a change in position information. By reducing the number of times, the amount of information transmitted from the first map output device 21 to the second map output device 22 can be reduced.

  Moreover, according to the information system 2 according to the present embodiment, for example, even if the second map output device 12 does not include a means for acquiring position information such as GPS, the first map output device 11 outputs. A map similar to a map can be output.

  Further, according to the information system 2 according to the present embodiment, for example, a person similar to the map viewed by the first-seat output device 21 by the person at the rear seat can see the map similar to the map viewed by the person at the rear seat by the short-range wireless communication. The two-map output device 22 can browse.

(Embodiment 3)
In the present embodiment, the first map output device acquires the first map information and the second map information or the position information, and the second map output device receives the second map information, or the position The second map information corresponding to the information is acquired, the first map output device outputs the first map information, the second map information output device outputs the second map information, the first map output device and the second map output device An information system that outputs similar map information will be described.

  FIG. 12 is a conceptual diagram of the information system 3 in the present embodiment. In FIG. 12, the first map output device 31 is, for example, a car navigation device mounted on a car, a navigation device mounted on another vehicle, or the like. In FIG. 12, the second map output device 32 is, for example, a terminal device such as a portable game machine, a mobile phone, or a PDA (Personal Digital Assistant). The first map output device may be a terminal device, and the second map output device may be a navigation device or the like. The communication between the first map output device 31 and the second map output device 32 is usually near field communication such as Bluetooth (registered trademark). Further, the communication between the first map output device 31 and the second map output device 32 may be communication using a wireless LAN such as Wi-Fi (registered trademark) or other wireless communication.

  FIG. 13 is a block diagram of the first map output device 31 and the second map output device 32 in the present embodiment. The first map output device 31 includes a first map information storage unit 111, a second map information storage unit 112, a first reception unit 113, a position information acquisition unit 114, a first map information acquisition unit 115, a first reception unit 319, A map synchronization information acquisition unit 316, a first transmission unit 317, and a first output unit 118 are provided. The second map output device 32 includes a second map information storage unit 223, a second reception unit 325, a second transmission unit 326, a second reception unit 321, a second map information acquisition unit 324, and a second output unit 322.

  The first reception unit 319 receives a map synchronization information request instruction. The map synchronization information request instruction is an instruction related to requesting transmission of map synchronization information. The map synchronization information request instruction usually includes an instruction identifier for identifying the instruction, map synchronization type information indicating the type of map synchronization information, map type information indicating the type of map information, position type information indicating the type of position information, and the like. Have. The instruction identifier in the map synchronization information request instruction is information indicating that the instruction is a map synchronization information request instruction.

  The instruction identifier is, for example, “map synchronization information” or “map synchronization”. The map synchronization type information includes, for example, “second map information”, “position information”, “second map”, “current position”, and the like. The map type information includes, for example, “plane”, “solid”, “two-dimensional”, “three-dimensional”, “bird's eye view”, “deformed”, “simplified”, “schematic map”, and the like. The position type information includes, for example, “current position information”, “display position”, “latitude and longitude”, “coordinate value”, “absolute”, and “relative”.

  As described above, the map synchronization information request instruction is, for example, “map synchronization information | second map information”, “map synchronization | position”, “second map information | simplification”, “position | current position”, and the like. “Map synchronization information | second map information” means that second map information is requested as map synchronization information. “Map synchronization | position” means requesting position information as map synchronization information. Further, “second map information | simplified” means requesting second map information indicating a simplified map as map synchronization information. Further, “position | current position” means This means requesting location information indicating the current location as map synchronization information.

  The first receiving unit 319 is usually realized by a wireless or wired communication means, but may be realized by a means for receiving a broadcast.

  The map synchronization information acquisition unit 316 acquires map synchronization information. In the present embodiment, the map synchronization information is second map information or position information. That is, the map synchronization information acquisition unit 316 acquires second map information or position information. The procedure and method for acquiring the second map information and the procedure and method for acquiring the location information are the same as those of the map synchronization information acquisition unit 116 and the map synchronization information acquisition unit 216, and thus description thereof is omitted. .

  In addition, whether to acquire the second map information or the position information usually follows the map type information. That is, for example, the map synchronization information acquisition unit 316 first acquires map synchronization type information. Then, the map synchronization information acquisition unit 316 determines whether the map synchronization type information is information indicating second map information or information indicating position information. Then, the map synchronization information acquisition unit 316 acquires the second map information when the map synchronization type information is information indicating the second map information. Further, the map synchronization information acquisition unit 316 acquires position information when the map synchronization type information is information indicating position information.

  The map synchronization type information is usually map synchronization information type information included in a map synchronization information request instruction received by the first receiving unit 319. The map synchronization information may be held by the map synchronization information acquisition unit 316 or may be stored in an arbitrary storage area.

  The map synchronization information acquisition unit 316 can usually be realized by an MPU, a memory, or the like. The processing procedure of the map synchronization information acquisition unit 316 is usually realized by software, and the software is recorded in a recording medium such as a ROM. Note that the map synchronization information acquisition unit 316 may be realized by hardware (dedicated circuit) such as a so-called GPS or a device that receives position information from a base station for mobile communication.

  The first transmission unit 317 transmits the second map information acquired by the map synchronization information acquisition unit 316 or the position information acquired by the map synchronization information acquisition unit 316 to the second map output device 32. That is, the first transmission unit 317 transmits the second map information to the second map output device 32 when the map synchronization information acquisition unit 316 acquires the second map information. In addition, when the map synchronization information acquisition unit 316 acquires position information, the first transmission unit 317 transmits the position information to the second map output device 32. The first transmission unit 317 is usually realized by a wireless or wired communication unit, but may be realized by a broadcasting unit.

  The second reception unit 325 receives a map synchronization information request instruction. The second receiving unit 325 may receive an instruction other than the map synchronization information request instruction. The instructions other than the map synchronization information request instruction include, for example, a map output instruction, a power ON instruction, a power OFF instruction, and the like. When the second reception unit 325 receives an instruction other than the map synchronization information request instruction, the second map output device 12 normally performs processing according to the received instruction.

  Also, these instructions are usually based on user operations. The operation includes, for example, a button operation, a tap operation on the touch panel, a drag operation, a flick operation, a pinch-out operation, a pinch-in operation, and the like.

  The input means for the map synchronization information request instruction in the second reception unit 325 may be anything such as a keyboard, mouse, or menu screen. The second receiving unit 325 can be realized by a device driver of an input unit such as a keyboard, menu screen control software, or the like.

  The second transmission unit 326 transmits the map synchronization information request instruction received by the second reception unit 325 to the first map output device 31. The second transmission unit 326 is usually realized by a wireless or wired communication unit, but may be realized by a broadcasting unit.

  The second receiving unit 321 receives the second map information transmitted by the first transmitting unit 317 or the position information transmitted by the first transmitting unit 317. The second receiving unit 321 is usually realized by a wireless or wired communication means, but may be realized by a means for receiving a broadcast.

  The second map information acquisition unit 324 acquires second map information from the second map information storage unit 223. The second map information acquisition unit 324 acquires second map information corresponding to the position information received by the second reception unit 321. In addition, since the procedure, method, etc. of acquisition of 2nd map information are the same as that of the 2nd map information acquisition part 224, description is abbreviate | omitted.

  The second map information acquisition unit 324 can usually be realized by an MPU, a memory, or the like. The processing procedure of the second map information acquisition unit 324 is usually realized by software, and the software is recorded in a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The second output unit 322 outputs the second map information received by the second receiving unit 321 or the second map information acquired by the second map information acquiring unit 324. That is, when the second receiving unit 321 receives the second map information, the second output unit 322 outputs the second map information. Moreover, the 2nd output part 322 outputs the said 2nd map information, when the 2nd map information acquisition part 324 acquires 2nd map information.

  The second output unit 322 may or may not include an output device such as a display or a speaker. The second output unit 322 may be implemented by output device driver software, or output device driver software and an output device.

  Next, the operation of the information system 3 will be described.

  FIG. 14 is a flowchart showing the overall operation of the first map output device 31.

  (Step S1401) The first reception unit 113 determines whether an instruction has been received. If accepted, the process proceeds to step S1402. Otherwise, the process proceeds to step 1404.

  (Step S1402) The first reception unit 113 determines whether or not the received instruction is a map output instruction. If it is a map output instruction, the process proceeds to step S1404; otherwise, the process proceeds to step S1403.

  (Step S1403) The first map information output device 31 performs a process according to the instruction received in step S1401, and returns to step S1401.

  (Step S1404) The position information acquisition unit 114 acquires position information.

  (Step S1405) The first map information acquisition unit 115 searches the first map information storage unit 111 for the first map information corresponding to the position information acquired in step S1404, and acquires the first map information.

  (Step S1406) The first receiving unit 319 determines whether or not a map synchronization information request instruction has been received. If received, the process proceeds to step S1409; otherwise, the process proceeds to step S1407.

  (Step S1407) The map synchronization information acquisition unit 316 determines whether the map synchronization type information can be acquired from an arbitrary storage area. If it can be obtained, the process proceeds to step S1408; otherwise, the process proceeds to step S1415.

  (Step S1408) The map synchronization information acquisition unit 316 acquires map synchronization type information from an arbitrary storage area.

  (Step S1409) The map synchronization information acquisition unit 316 includes the map synchronization type information included in the map synchronization information request instruction received in step S1406 or the map synchronization type information acquired in step S1408, indicating the second map information. Determine whether or not. If it is the information indicating the second map information, the process proceeds to step S1410. Otherwise, the process proceeds to step S1412.

  (Step S1410) The map synchronization information acquisition unit 316 searches the second map information storage unit 112 for second map information corresponding to the position information acquired in step S1404 and acquires the second map information.

  (Step S1411) The first transmission unit 317 transmits the second map information acquired in step S1410 to the second map output device 32.

  (Step S1412) The map synchronization information acquisition unit 316 determines whether the map synchronization type information included in the map synchronization information request instruction received in step S1406 or the map type information acquired in step S1408 is information indicating position information. Determine whether. If it is information indicating position information, the process proceeds to step S1413, and if not, the process proceeds to step S1415.

  (Step S1413) The map synchronization information acquisition unit 316 acquires the position information acquired in step S1404.

  (Step S1414) The first transmission unit 317 transmits the position information acquired in Step S1413 to the second map output device 32.

  (Step S1415) The first output unit 118 outputs the second map information acquired in step S1405, and returns to step S1401.

  In the flowchart of FIG. 14, the process may be terminated by powering off or a process termination interrupt.

  Further, in the flowchart of FIG. 14, the first map information is output immediately after the acquisition of the first map information, and then the acquisition of the second map information and the transmission of the second map information, or the acquisition of the position information and the position information. May be sent. That is, the output of the first map information may be after the acquisition of the first map information, and the transmission of the second map information may be after the acquisition of the second map information, and the transmission of the position information. May be after the acquisition of the position information, and the order does not matter.

  FIG. 15 is a flowchart showing the overall operation of the second map output device 32.

  (Step S1501) The second receiving unit 325 determines whether an instruction has been received. If accepted, the process proceeds to step S1502, and if not, the process proceeds to step S1505.

  (Step S1502) The second receiving unit 325 determines whether or not the received instruction is a map synchronization information request instruction. If it is a map synchronization information request instruction, the process proceeds to step S1503; otherwise, the process proceeds to step S1504.

  (Step S1503) The second transmission unit 326 transmits the map synchronization information request instruction received in Step S1501 to the first map output device 31, and returns to Step S1501.

  (Step S1504) The second map output device 32 performs a process according to the instruction received in Step S1501, and returns to Step S1501.

  (Step S1505) The second receiving unit 321 determines whether or not the second map information has been received. If received, the process proceeds to step S1508; otherwise, the process proceeds to step S1506.

  (Step S1506) The second receiving unit 321 determines whether or not position information has been received. If received, the process proceeds to step S1507; otherwise, the process returns to step S1501.

  (Step S1507) The second map information acquisition unit 324 searches the second map information storage unit 223 for second map information corresponding to the position information received in step S1506, and acquires the second map information.

  (Step S1508) The second output unit 322 outputs the second map information received in Step S1505 or the second map information acquired in Step S1507, and returns to Step S1501.

  In the flowchart of FIG. 15, the process may be ended by powering off or interruption for aborting the process.

(Concrete example)
Next, a specific example of the operation of the information system 3 will be described. In this specific example, it is assumed that the first map output device 31 is a navigation device (hereinafter referred to as “car navigation”) mounted on an automobile. The second map output device 32 is assumed to be a portable game machine.

(Example 1)
First, it is assumed that a car equipped with a car navigation system is running. During this time, the position information acquisition unit 114 continues to acquire the current position information. And the 1st map information acquisition part 115 acquires the 1st map information corresponding to the said present position information from the 1st map information storage part 111 at a certain timing, and acquired the 1st map information shown in FIG. And

  Next, it is assumed that the user performs an operation for requesting the portable game machine to transmit the second map information indicating the deformed map. Then, the second reception unit 325 receives the map synchronization information request instruction “second map information | deformation”, and the second transmission unit 326 transmits the map synchronization information request instruction to the car navigation system.

  Next, the first receiving unit 319 receives a map synchronization information request instruction “second map information | deformation”. Then, the map synchronization information acquisition unit 316 acquires the map synchronization type information “second map information” and the map type information “deformation” included in the map synchronization information request instruction received by the first reception unit 319, and According to the type information and the map type information, the deformed second map information corresponding to the current position information acquired by the position information acquisition unit 114 is acquired from the second map information storage unit 112. Here, it is assumed that the map synchronization information acquisition unit 316 has acquired the second map information shown in FIG. The second map information in FIG. 6 is map information obtained by deforming the first map information in FIG.

  Next, the 1st transmission part 317 transmits the 2nd map information of FIG. 6 to a portable game machine, and the 1st output part 118 outputs the 1st map information of FIG.

  Next, the second receiving unit 321 receives the second map information of FIG. 6, and the second output unit 322 outputs the second map information of FIG.

(Example 2)
First, it is assumed that the car on which the car navigation system is mounted is stopped. During this time, the position information acquisition unit 114 always continues to acquire the current position information, but the first map information acquisition unit 115 does not acquire the first map information because there is no change in the current position of the car navigation system.

  Next, it is assumed that the automobile starts traveling from a stopped state. Then, the first map information acquisition unit 115 determines that the current position of the car navigation has changed, and acquires the current position information acquired by the position information acquisition unit 114. Then, the first map information acquisition unit 115 acquires first map information corresponding to the acquired current position information from the first map information storage unit 111. Here, the 1st map information acquisition part 115 shall acquire the 1st map information shown in FIG.

  Next, it is assumed that the user performs an operation for requesting the portable game machine to transmit the current position information indicating the longitude and latitude. Then, the second reception unit 325 receives the map synchronization information request instruction “current position information | longitude and latitude”, and the second transmission unit 326 transmits the map synchronization information request instruction to the car navigation system.

  Next, the first receiving unit 319 receives a map synchronization information request instruction “current position information | longitude and latitude”. Then, the map synchronization information acquisition unit 316 acquires the map synchronization type information “current position information” and the current position type information “longitude and latitude” included in the map synchronization information request instruction received by the first reception unit 319, and the map According to the aircraft type information and the map type information, current position information indicating the longitude and latitude acquired by the position information acquisition unit 114 is acquired.

  Next, the 1st transmission part 317 transmits the 2nd map information of FIG. 6 to a portable game machine, and the 1st output part 118 outputs the 1st map information of FIG.

  Next, the second reception unit 321 receives the current position information, and the second map information acquisition unit 324 acquires second map information corresponding to the current position information from the second map information storage unit 223. Here, the 2nd map information acquisition part 324 shall acquire the 2nd map information shown in FIG. And the 2nd output part 322 outputs the 2nd map information of FIG.

  As described above, according to the information system 3 according to the present embodiment, the map can be synchronized using the second map information or the position information.

  Moreover, according to the information system 3 by this Embodiment, according to the request | requirement instruction | indication of the 2nd map information from a user, it can synchronize a map using 2nd map information.

  In addition, according to the information system 3 according to the present embodiment, it is possible to synchronize the map using the position information in accordance with the position information request instruction from the user.

  In addition, according to the information system 3 according to the present embodiment, for example, a person similar to the front seat reads a map similar to the map viewed by the person on the front seat using the first map output device 31 by short-range wireless communication. It can be browsed with the two-map output device 32.

  Further, in each of the above embodiments, it goes without saying that two or more communication units existing in one apparatus may be physically realized by one medium.

  In each of the above embodiments, each process or each function may be realized by centralized processing by a single device or a single system, or distributed by a plurality of devices or a plurality of systems. It may be realized by being processed.

  In each of the above embodiments, each component may be configured by dedicated hardware, or a component that can be realized by software may be realized by executing a program. For example, each component can be realized by a program execution unit such as a CPU reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

  Moreover, the software which implement | achieves the 1st map output device in each said embodiment is the following programs. That is, in this program, map information that is information relating to a map is stored in a recording medium, and a computer acquires a position information acquisition unit that acquires position information that is information related to a position, and map information corresponding to the position information. A map information acquisition unit that acquires information from the recording medium, a map synchronization information acquisition unit that acquires map synchronization information that is information related to synchronization with the map information acquired by the map information acquisition unit, and the map synchronization information Is a program for functioning as a transmission unit that transmits to the outside and an output unit that outputs the map information acquired by the map information acquisition unit.

  Moreover, the software which implement | achieves the 2nd map output device in each said embodiment is the following programs. That is, this program outputs a map information corresponding to the map synchronization information, and a receiving unit that receives map synchronization information that is information related to synchronizing the map information that is information about the map from the outside. This is a program for functioning as an output unit.

  In the above program, the transmission step for transmitting information, the reception step for receiving information, etc. include at least processing performed only by hardware, for example, processing performed by a modem or an interface card in the transmission step. Absent.

  The program may be executed by being downloaded from a server or the like, or a program recorded on a predetermined recording medium (for example, an optical disk such as a CD-ROM, a magnetic disk, a semiconductor memory, or the like) is read out. May be executed. Further, this program may be used as a program constituting a program product.

  Moreover, the computer which performs the said program may be single, and plural may be sufficient as it. That is, centralized processing may be performed, or distributed processing may be performed.

  FIG. 16 is an overview of a computer system 9 that executes the above-described program to realize the information system of the above-described embodiment. The above-described embodiments can be realized by computer hardware and a computer program executed thereon.

  In FIG. 16, the computer system 9 includes a computer 901 including a CD-ROM (Compact Disk Read Only Memory) drive 9011, an FD (Flexible Disk) drive 9012, a keyboard 902, a mouse 903, and a monitor 904.

  FIG. 17 is a block diagram of the computer system 9. In FIG. 17, in addition to a CD-ROM drive 9011 and an FD drive 9012, a computer 901 includes a CPU (Central Processing Unit) 9013 and a ROM (Read-Only Memory) 9014 for storing a program such as a boot-up program. A random access memory (RAM) 9015 connected to the CPU 9013 for temporarily storing application program instructions and providing a temporary storage space; and a hard disk 9016 for storing application programs, system programs, and data , A CD-ROM drive 9011, an FD drive 9012, a CPU 9013, and the like. Although not shown here, the computer 901 may further include a network card that provides connection to a LAN.

  A program that causes the computer system 9 to execute functions such as the information system of the above-described embodiment is stored in the CD-ROM 9101 or FD 9102, inserted into the CD-ROM drive 9011 or FD drive 9012, and further stored in the hard disk 9016. May be forwarded. Alternatively, the program may be transmitted to the computer 901 via a network (not shown) and stored in the hard disk 9016. The program is loaded into the RAM 9015 when executed. The program may be loaded directly from the CD-ROM 9101, the FD 9102, or the network.

  The program does not necessarily include an operating system (OS) or a third-party program that causes the computer 901 to execute functions such as the information system of the above-described embodiment. The program only needs to include an instruction portion that calls an appropriate function (module) in a controlled manner and obtains a desired result. How the computer system 9 operates is well known and will not be described in detail.

  The present invention is not limited to the above-described embodiments, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

  As described above, the information system according to the present invention has an effect that a map to be displayed can be synchronized between different devices, and is useful as a navigation system machine including two or more terminal devices.

1, 2, 3 Information system 11, 21, 31 First map output device 12, 22, 32 Second map output device 111 First map information storage unit 112, 223 Second map information storage unit 113 First reception unit 114 Position Information acquisition unit 115 First map information acquisition unit 116, 216, 316 Map synchronization information acquisition unit 117, 217, 317 First transmission unit 118 First output unit 121, 221, 321 Second reception unit 122, 222, 322 Second Output unit 224, 324 Second map information acquisition unit 319 First reception unit 325 Second reception unit 326 Second transmission unit

Claims (11)

An information system comprising a first map output device and a second map output device,
The first map output device is:
A first map information storage unit capable of storing first map information which is information relating to the map;
A position information acquisition unit that acquires position information that is information about the position;
A first map information acquisition unit for acquiring first map information corresponding to the position information from the first map information storage unit;
A map synchronization information acquisition unit that acquires map synchronization information that is information related to synchronization with the first map information acquired by the first map information acquisition unit;
A first transmitter for transmitting the map synchronization information to the second map output device;
A first output unit that outputs the first map information acquired by the first map information acquisition unit;
The second map output device is:
A second receiving unit for receiving the map synchronization information;
An information system comprising: a map output corresponding to the map synchronization information, and a second output unit that outputs second map information that is map information different from the first map information. The map synchronization information is second map information,
The first map output device is:
A second map information storage unit capable of storing second map information that is information about the map;
The map synchronization information acquisition unit
Obtaining second map information corresponding to the position information from the second map information storage unit;
The second output unit is
The information system according to claim 1 which outputs the 2nd map information which said 2nd receiving part received. The map synchronization information is position information,
The map synchronization information acquisition unit
Get location information,
The second map output device is:
A second map information storage unit capable of storing second map information which is information relating to the map;
A second map information acquisition unit for acquiring second map information corresponding to the position information received by the second reception unit from the second map information storage unit;
The second output unit is
The information system of Claim 1 which outputs the 2nd map information which said 2nd map information acquisition part acquired. The second map output device is:
A second transmission unit that transmits a map synchronization information request instruction that is an instruction to request the map synchronization information to the first map output device;
The first map output device is:
A first receiving unit for receiving the map synchronization information request instruction;
The map synchronization information acquisition unit
The information system according to any one of claims 1 to 3, wherein the map synchronization information is acquired in accordance with the map synchronization information request instruction received by the first receiving unit. The information system according to any one of claims 1 to 4, wherein the first map output device and the second map output device perform short-range wireless communication. The 1st map output apparatus which comprises the information system in any one of the said Claims 1-5. The 2nd map output apparatus which comprises the information system in any one of the said Claims 1-5. On the recording medium,
Contains map information that is information about the map,
A map output method performed using a position information acquisition unit, a map information acquisition unit, a map synchronization information acquisition unit, a transmission unit, and an output unit,
A position information acquisition step in which the position information acquisition unit acquires position information that is information about the position;
The map information acquisition unit acquires map information corresponding to the position information from the recording medium; and
A map synchronization information acquisition step in which the map synchronization information acquisition unit acquires map synchronization information that is information related to synchronization with the map information acquired by the map information acquisition unit;
The transmitting unit transmits the map synchronization information to the outside, and
A map output method, wherein the output unit includes an output step of outputting the map information acquired by the map information acquisition unit. A map output method performed using a receiving unit and an output unit,
A receiving step for receiving, from the outside, map synchronization information that is information relating to synchronization with map information that is information relating to a map;
A map output method comprising: an output step in which the output unit outputs map information corresponding to the map synchronization information. On the recording medium,
Contains map information that is information about the map,
Computer
A position information acquisition unit that acquires position information that is information about the position;
A map information acquisition unit for acquiring map information corresponding to the position information from the recording medium;
A map synchronization information acquisition unit that acquires map synchronization information that is information relating to synchronization with the map information acquired by the map information acquisition unit;
A transmission unit for transmitting the map synchronization information to the outside;
The program for functioning as an output part which outputs the map information which the said map information acquisition part acquired. Computer
A receiving unit that receives map synchronization information that is information related to synchronization with map information that is information about the map from the outside;
A program for functioning as an output unit that outputs map information corresponding to the map synchronization information.

Images