JP2019148832A - Map information system and program - Google Patents

Abstract

To allow a safe differential update by a map information processor for performing differential update processing on map information, which has been difficult by an existing map information processor.SOLUTION: A safe differential update is allowed by a map information processor by performing differential update processing on map information when a navigation-related function related to the navigation of the map information processor is not working and not performing differential update processing when the function is working.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a map information processing apparatus and the like that perform map difference update processing.

  In a conventional map information processing apparatus, there has been a technique for updating map information by difference (see, for example, Patent Document 1).

JP 2012-181040 (first page, FIG. 1 etc.)

  However, in the conventional map information processing apparatus which performs the difference update process of map information, the difference update could not be performed safely.

  Also, conventionally, when the map information difference update is interrupted, the difference update process has been performed from the beginning.

  The map information processing apparatus of the first invention relates to navigation of the map information processing apparatus in the map information processing apparatus that performs map information difference update processing in the map information processing apparatus that performs map information difference update processing. The map information processing apparatus performs a map information difference update process when a navigation-related function is not operating, and does not perform a map information difference update process when a navigation-related function is operating.

  With this configuration, the map information processing apparatus that performs the map information difference update process can safely perform the difference update.

  Further, the map information processing apparatus of the second invention is a map information of a part of the area of the first invention, and two or more map parts which are parts constituting a part of the entire map information. A storage unit that can store map information including a receiving unit that receives one or more difference maps that are map parts of the updated region, and an accumulation that stores the one or more difference maps received by the receiving unit in the storage unit And a processing unit that executes a navigation-related function using the map information stored in the storage unit, and when the processing unit is executing a navigation-related function, the receiving unit performs one or more Difference update process including the difference map reception process and the one or more difference map accumulation process performed by the accumulation unit, or the difference update process including the one or more difference map reception process performed by the reception unit, or the accumulation unit The accumulation of one or more difference maps Difference update processing including management is a map information processing apparatus is not performed.

  With this configuration, the map information processing apparatus that performs the map information difference update process can safely perform the difference update.

  In addition, the map information processing apparatus according to the third aspect of the present invention is a situation in which the map information difference update process can be executed when the processing unit does not execute the navigation-related function with respect to the first or second aspect of the invention. There is a map information processing apparatus which is present and the map information processing apparatus is not operating.

  With this configuration, the map information processing apparatus that performs the map information difference update process can safely perform the difference update.

  The map information processing apparatus according to the fourth aspect of the present invention is the case where the accessory power supply is off when the processing unit does not execute the navigation-related function for any one of the first to third aspects. It is a certain map information processing device.

  With this configuration, the map information processing apparatus that performs the map information difference update process can safely perform the difference update.

  The map information processing apparatus according to the fifth aspect of the present invention is directed to any one of the first to fourth aspects of the invention, wherein one or more difference maps are received in the receiving unit or one or more difference maps in the accumulating unit. A determination unit that determines whether or not the difference update process that is a process of storing or receiving one or more difference maps in the receiving unit and a process of storing one or more difference maps in the storing unit has succeeded or failed; And a transmission unit that transmits notification information indicating failure to the server device when the determination unit determines that the failure has occurred, and the reception unit includes at least a part of the difference map among the one or more difference maps. Is a map information processing apparatus that receives the information again.

  With this configuration, the map information processing apparatus that performs the map information difference update process can safely perform the difference update.

  In the map information processing apparatus according to the sixth aspect of the present invention, the transmitter does not transmit the notification information corresponding to one version of the one or more difference maps more than a predetermined number of times to the fifth aspect. Or when the transmitting unit transmits notification information corresponding to one or more difference maps of one version a predetermined number of times, the receiving unit selects at least some of the difference maps of the one or more difference maps. This is a map information processing apparatus that does not receive again.

  With this configuration, it is not necessary to execute unnecessary processing in an environment where a difference map cannot be received.

  Further, the map information processing apparatus according to the seventh aspect of the present invention provides a case where the navigation related function is started or the navigation related function is started during the execution of the difference update process for any one of the first to sixth inventions. When the execution of is started, the map information processing apparatus further includes an interruption unit that performs a process for interrupting the difference update process.

  With this configuration, a map information processing apparatus that performs map information difference update processing can perform difference update safely and efficiently.

  In the map information processing apparatus according to the eighth aspect of the invention, in contrast to the seventh aspect of the invention, the interruption unit accumulates one or more pieces of state information, which is information necessary for resuming the difference update processing, in the storage unit. The reception unit or the storage unit, or the reception unit and the storage unit is a map information processing apparatus that restarts the difference update process using one or more pieces of state information.

  With this configuration, a map information processing apparatus that performs map information difference update processing can perform difference update safely and efficiently.

  The map information server device according to the ninth aspect of the present invention includes a server storage unit that can store one or more difference maps, and a server transmission unit that transmits one or more difference maps to the map information processing device. The transmission unit does not transmit one or more difference maps to the one map information processing apparatus again when the number of failures of the difference update processing in the one map information processing apparatus is large enough to satisfy a predetermined condition. An information server device.

  With this configuration, it is not necessary to execute unnecessary processing in an environment where a difference map cannot be received.

  Further, the map information server device of the tenth aspect of the invention relates to a server receiver that receives notification information from the map information processing device, and a number of times that temporarily stores the number of times of reception of the notification information, relative to the ninth invention. And the server transmission unit stores one or more difference maps as one map when the number of times corresponding to one map information processing device stored in the number storage unit is large enough to satisfy a predetermined condition. The map information server device is not transmitted again to the information processing device.

  With this configuration, it is not necessary to execute unnecessary processing in an environment where a difference map cannot be received.

  According to the map information processing apparatus of the present invention, the map information processing apparatus that performs the map information difference update process can safely perform the difference update.

Conceptual diagram of the map information system in the first embodiment Block diagram of the map information system The flowchart explaining operation | movement of the map information processing apparatus 1 The flowchart explaining operation | movement of the map information processing apparatus 1 The flowchart explaining operation | movement of the map information server apparatus 2 Figure showing the same update try count management table Overview of the computer system Block diagram of the computer system

  Hereinafter, embodiments of the map information processing apparatus and the like 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.

(Embodiment 1)
In this Embodiment, it is a block diagram of the map information system which performs a map difference update process, when the map information processing apparatus is not operating.

  In the present embodiment, a map information system including a map information processing apparatus that notifies the map information server apparatus of a failure when a process related to map update has failed will be described.

  In the present embodiment, a map information system including a map information server device that is not downloaded when the number of processing failures related to updating one version of map information has been determined in advance will be described.

  In this embodiment, a map information system including a map information processing apparatus that interrupts a map difference update process when the map information processing apparatus operates during the map difference update process will be described.

  In this embodiment, a map information system including a map information processing apparatus that remembers the state when the map difference update process is interrupted and performs the update process from the interrupted state at the time of the next map update operation will be described. .

  FIG. 1 is a conceptual diagram of the map information system in the present embodiment. The map information system includes one or more map information processing apparatuses 1 and a map information server apparatus 2.

  The map information processing apparatus 1 is, for example, a vehicle navigation apparatus. The term “vehicle” includes a car, a two-wheeled vehicle, a bicycle, and the like and is widely understood. The map information processing apparatus 1 is, for example, a so-called smartphone, tablet terminal, laptop computer, or the like in which navigation software, software that provides a map information service, and the like are installed. Note that the map information processing apparatus 1 is understood widely regardless of the type.

  The map information server device 2 is a so-called server device, and may be a so-called cloud server or the like. Regardless of the type of the map information server device 2, it will be widely understood.

  FIG. 2 is a block diagram of the map information system in the present embodiment.

  The map information processing apparatus 1 includes a storage unit 10, a reception unit 11, a reception unit 12, a processing unit 13, an output unit 14, and a “transmission unit 15.

    The processing unit 13 includes a storage unit 131, a determination unit 132, an interruption unit 133, and a route search unit 134.

  The map information server device 2 includes a server storage unit 21, a server reception unit 22, a server transmission unit 23, a server reception unit 24, and a server processing unit 25. The server processing unit 25 includes a number storage unit 251.

  The storage unit 10 can store map information having two or more map parts. A map part is information on a map of a partial area, and is a part that constitutes a part of the information on the entire map. There is no limitation on the data structure of map parts or map information, or the contents thereof.

  The type of map indicated by the map information and the data format of the map information are not limited. The types of the maps are, for example, topographic maps, topographic maps, geological maps, land use maps, housing maps, route maps, road maps, guide maps, aerial photographs, satellite photographs, and the like. The data format is, for example, raster data, vector data, KIWI format, or the like.

  In addition, the map information usually has one or more road information indicating roads. The road information includes, for example, information indicating the name of the road, the type of road, the positions of both ends of the road, and the like. The road information includes, for example, a road score and information for identifying the road. The score is usually a cost used for route search. The road information may be associated with information for identifying the road information.

  Moreover, the map information may have one or more point information, for example. The point information is information indicating points on the map. In addition, the kind of point is not ask | required. The said point is an intersection, a break point, a tourist attraction, a station, etc., for example.

  It is preferable that the storage unit 10 stores map information in association with the version identifier. The storage unit 10 may store only one or more difference maps in association with the version identifier. The version identifier is information for identifying the version of the map information. The difference map is a map part different from the reference map information. The reference map information is, for example, the previous version of map information, original map information, or the like. The original map information is the map information of the first version (version 1). Original map information is usually map information originally stored in the map information processing apparatus 1. The original map information has two or more map parts. The original map information is, for example, map information stored when the map information processing apparatus 1 is shipped.

  The storage unit 10 may store two or more versions of map information. The map information of each version may include a map part that covers the entire area, or may include only a map part that is different from the map information of the previous version or the first version (version 1). That is, it does not matter how the map information of each version is held.

  The storage unit 10 may store the map information of each version by dividing the folder according to the version. In such a case, for example, the folder name is the version identifier. The version identifier is information for identifying a version.

  The map information only needs to be managed so that the version identifier of the map information can be acquired.

  Further, it is preferable that each version of map information has two or more map parts covering the entire area. In such a case, the same map parts are usually at least partially between versions.

  The storage unit 10 can store original map information.

  The storage unit 10 preferably stores two versions of map information: original map information and the latest version of map information. The latest version of map information is map information including the latest updated map parts.

  The storage unit 10 may store two versions of map information: the map information of the version immediately before the latest version and the map information of the latest version. In such a case, it is preferable that map information of a version other than the two versions is deleted and not stored.

  The storage unit 10 may store original map information, map information of a version immediately before the latest version, and map information of three versions of the latest version of map information. In such a case, it is preferable that map information of a version other than the three versions is deleted and not stored.

  The reception unit 11 receives instructions, information, and the like. Examples of instructions and information include map information update instructions, map information output instructions, destination inputs, and route search instructions. The map information update instruction is an instruction that prompts the map information server apparatus 2 to transmit a difference map, which will be described later. The destination input may be a route search instruction from the current location to the destination. The map information output instruction may be received from the user, may be received by detecting that the engine of the vehicle on which the map information processing device 1 is mounted is turned on, or the vehicle device. May be received from. That is, the input method of the output instruction of map information is not ask | required.

  The input means such as instructions and information may be anything such as a touch panel, keyboard, mouse or menu screen. The accepting unit 11 can be realized by a device driver for input means such as a touch panel and a keyboard, control software for a menu screen, and the like.

  The receiving unit 12 receives one or more difference maps. The difference map is a map part of the updated area. The receiving unit 12 receives one or more difference maps from the map information server device 2. The receiving unit 12 may receive one or more difference maps together with one or more difference map version identifiers. When the receiving unit 12 receives one or more difference maps, the processing unit 13 described later may generate the latest version version identifier. The version of one or more difference maps is a version of map information. Further, the receiving unit 12 may receive the latest version of map information including all the latest version of map parts. Moreover, it is suitable for the receiving part 12 to receive a version identifier and one or more difference maps.

  The receiving unit 12 receives at least a part of the one or more difference maps again. The reception here is usually reception of one or more difference maps according to transmission of notification information.

  The processing unit 13 executes navigation-related functions using the map information stored in the storage unit 10. The navigation-related function is a function related to navigation, and includes a map information processing device activation process, a map information output process, a route search function, a route guidance function, and the like.

  The processing unit 13 performs a map information difference update process when the navigation-related function is not operating. On the other hand, the processing unit 13 does not perform the map information difference update process when the navigation-related function is operating. This is to perform the differential update process safely or to safely operate the navigation related functions. In addition, when a navigation related function does not operate | move appropriately, a user's driving | operation may be disturbed and the safe driving | running | working of a vehicle may be inhibited.

  The case where the navigation-related function is not executed may be considered as a case where the map information processing apparatus 1 is not operating, for example. The case where the navigation-related function is not executed may be, for example, a case where the accessory power supply (ACC) is off. The case where the navigation related function is not executed may be a case where an instruction to stop execution of the navigation related function is received. The case where the instruction to stop the execution of the navigation related function is accepted includes the case where the engine off instruction is accepted, the case where the ACC off instruction is accepted, and the like. Such an instruction is received by the receiving unit 11.

  The case where the navigation-related function is not executed may be a case where the map information processing apparatus 1 is not operating and a predetermined time has come. The predetermined time is preferably set at 3 am, for example, where the vehicle is difficult to use.

  The case where the navigation-related function is not executed may be, for example, a case where the smartphone navigation application is not activated, or a case where the smartphone is turned off.

  However, even when the navigation-related function is not executed, the map information difference update process can be executed. Further, even when the map information processing apparatus 1 is not operating, the map information difference update process can be executed.

  The processing unit 13 performs various processes. The various processes are processes performed by the accumulation unit 131, the determination unit 132, the interruption unit 133, the route search unit 134, and the like.

  For example, the processing unit 13 deletes map information other than a predetermined version of map information before or after the storage unit 131 stores the latest version of map information. The predetermined version of map information is, for example, original map information (version 1 map information) and the latest version of map information. The map information of the predetermined version is, for example, the map information of the version immediately before the latest version and the map information of the latest version. The predetermined version of map information is, for example, the original map information, the map information of the version immediately before the latest version, and the map information of the latest version.

  For example, the processing unit 13 determines whether there is a defect in any of the map parts included in the latest version of the map information. The malfunction of the map part is any cause for which it is determined that the map part cannot be used or should not be used. For example, the file is destroyed or some information is missing. In addition, the display of the said map component becomes impossible by the malfunction of a map component, for example. Further, due to a defect in the map parts, for example, map information processing such as route search and route guidance becomes impossible.

  The accumulation unit 131 accumulates one or more difference maps received by the reception unit 12 in the storage unit 10. The difference map is a map component that constitutes map information.

  The accumulation unit 131 accumulates the latest version of map information in the storage unit 10 using one or more difference maps received by the reception unit 12. Note that the latest version of the map information stored is stored in the storage unit 10 in a manner that is distinguishable from other versions of map information. That is, for example, the storage unit 131 stores the latest version of map information in a folder having the name of the version identifier of the latest version. In addition, the storage unit 131 stores, for example, the latest version of map information in a pair with the latest version version identifier.

  The accumulation unit 131 may accumulate in the storage unit 10 the latest version of map information using one or more difference maps received by the reception unit 12 and one or more map parts that have not been updated. The one or more map parts that have not been updated are usually one or more map parts that constitute the map information of the version immediately before the latest version.

  The accumulation unit 131 may accumulate only one or more difference maps received by the reception unit 12 in the storage unit 10. In such a case, the map part of the area other than the area corresponding to the one or more difference maps received by the receiving unit 12 is a map part included in the map information of the version immediately before the latest version, or the map part of the area, or It is a map part included in the original map information and a map part of the area. Then, the navigation-related functions operate using map parts of other areas of other versions.

  The accumulation unit 131 may accumulate the latest version of map information received by the reception unit 12 in the storage unit 10.

  It is preferable that the storage unit 131 stores the latest version of map information in the storage unit 10 so that the original map information or the map information of the version immediately before the latest version remains. In this case, as a result, the original map information or the map information of the version immediately before the latest version and the latest version of map information may remain in the storage unit 10. In such a case, the processing unit 13 may delete other versions of map information.

  The accumulation unit 131 preferably accumulates the latest version of map information in the storage unit 10 so as to leave the original map information and the map information of the version immediately before the latest version. In this case, as a result, the original map information, the map information of the version immediately before the latest version, and the map information of the latest version need only remain in the storage unit 10. In such a case, the processing unit 13 may delete other versions of map information.

  The determination unit 132 determines whether the difference update process has succeeded or failed. The difference update process is a process related to the update of the map difference. The difference update process is, for example, a process of receiving one or more difference maps in the receiving unit 12. Further, the difference update process is, for example, a process of accumulating one or more difference maps in the accumulation unit 131. The difference update process is, for example, a process of receiving one or more difference maps in the reception unit 12 and a process of storing one or more difference maps in the storage unit 131.

  The determination unit 132 may determine whether the difference update process has succeeded or failed by, for example, CHKDSK for checking a file system error. In addition, the determination unit 132 may determine whether the difference update process has succeeded or failed by detecting whether or not the latest version of the map information has map parts of all regions, for example. .

  The interruption unit 133 performs a process for interrupting the difference update process when a predetermined condition is satisfied during the execution of the difference update process. The case where the predetermined condition is satisfied is a case where the interruption unit 133 detects that the difference map update process is not successful. The case where a predetermined condition is satisfied is, for example, a case where execution of a navigation related function is started or a case where execution of a navigation related function is started. The case where a predetermined condition is satisfied is, for example, a case where the intensity of radio waves for communication is equal to or less than a threshold value.

  For example, when the execution of the navigation-related function is started or the execution of the navigation-related function is started during the execution of the difference update process, the interruption unit 133 performs a process for interrupting the difference update process.

  Here, the process for interrupting is, for example, a process of accumulating information that identifies completed work in a buffer. Moreover, the process for interrupting is, for example, a process for accumulating information specifying work that has not been completed in a buffer. The process for interrupting is, for example, a process for deleting a file being written. Furthermore, the process for interrupting is, for example, two or more of the above processes.

  The interruption unit 133 normally accumulates one or more pieces of state information in the storage unit 10. The state information is information regarding the state at the time of interruption. The state information is information necessary for resuming the differential update process. The state information is, for example, information for specifying completed work, information for specifying uncompleted work, and the like. Note that the resumption of the differential update process is to execute the remaining process of the differential update process that has been performed halfway.

  The route search unit 134 performs route search. Since the route search technique is a known technique, detailed description thereof is omitted. The route search unit 134 may perform a route search using an A * search algorithm, or may perform a route search using an algorithm such as the Dijkstra method. That is, it goes without saying that the route search algorithm is not limited.

  The output unit 14 outputs map information stored in the storage unit 10. The output unit 14 normally outputs the latest version of map information stored in the storage unit 10.

  When the determination unit 132 determines that there is a defect in the latest map information, the output unit 14 preferably outputs the map information of the version immediately before the latest version. The output unit 14 may output original map information when the determination unit 132 determines that there is a defect in the latest map information. Further, the output unit 14 may output a route search result, route guidance, or the like in the route search unit 134. It should be noted that the case where a defect exists in the latest map information may be a case where a defect exists in some map parts of the latest map information.

  Here, output refers to display on a display, projection using a projector, printing with a printer, sound output, transmission to an external device, storage in a recording medium, and output to other processing devices or other programs. It is a concept that includes delivery of processing results.

  When the determination unit 132 determines that the transmission unit 15 has failed, the transmission unit 15 transmits notification information indicating the failure to the server device. The notification information includes, for example, a version identifier, a user identifier, and the like.

  The server storage unit 21 constituting the map information server device 2 can store one or more difference maps. The server storage unit 21 may store map information that is a set of map parts in all areas. It is preferable that the server storage unit 21 stores map information of two or more versions in association with the version identifier. The server storage unit 21 can store information indicating the number of times described later in association with the device identifier. The number of times is the number of times the difference update process has failed. The server storage unit 21 may store information indicating the number of times described later in association with the device identifier and the version identifier.

  The server reception unit 22 receives instructions and information. The instructions, information, and the like are, for example, one or more difference maps. The instructions and information are, for example, a version identifier and one or more difference maps.

  The input means such as instructions and information may be anything such as a keyboard, mouse, or menu screen. The server reception unit 22 can be realized by a device driver for input means such as a keyboard, control software for a menu screen, or the like.

  The server transmission unit 23 transmits one or more difference maps to the map information processing apparatus 1. The server transmission unit 23 may transmit the version identifier and one or more difference maps to the map information processing apparatus 1. One or more difference maps are stored in the server storage unit 21.

  If the number of failures of the difference update process in one map information processing apparatus 1 is so large as to satisfy a predetermined condition, the server transmission unit 23 sends one or more difference maps to the one map information processing apparatus 1 again. , Do not send.

  When the number of times corresponding to one map information processing device 1 stored in the number storage unit 251 is large enough to satisfy a predetermined condition, the server transmission unit 23 uses one or more difference maps as one map information processing device 1. Do not send again.

  The server receiving unit 24 receives notification information from the map information processing apparatus 1. The server receiving unit 24 normally receives a device identifier for identifying the map information processing device 1 and notification information. The device identifier may be the same as the user identifier.

  The server processing unit 25 performs various processes. The various processes are processes performed by the number storage unit 251, for example. For example, the various types of processing are processing for obtaining presence information indicating whether or not a difference map corresponding to an inquiry from the user exists with reference to the server storage unit 21. The presence information may be “present (eg“ 1 ”)” or “not present (eg“ 0 ”)”. The various processes are processes for acquiring, from the server storage unit 21, one or more difference maps corresponding to an inquiry from the map information processing apparatus 1, for example.

  The number storage unit 251 temporarily stores at least the number of times the notification information has been received. The number storage unit 251 normally stores the number of times the notification information is received in association with the device identifier. The number storage unit 251 may accumulate the number of times in the server storage unit 21.

  The storage unit 10 and the server storage unit 21 are preferably non-volatile recording media, but can also be realized by volatile recording media.

  The process in which map information etc. are memorize | stored in the storage part 10 grade | etc., Is not ask | required. For example, map information or the like may be stored in the storage unit 10 or the like via a recording medium, and map information or the like transmitted via a communication line or the like is stored in the storage unit 10 or the like. Or the map information etc. which were input via the input device may be memorize | stored in the storage part 10 grade | etc.,.

  The receiving unit 12 and the server receiving unit 24 are usually realized by wireless or wired communication means, but may be realized by means for receiving broadcasts.

  The processing unit 13, the storage unit 131, the determination unit 132, the interruption unit 133, the route search unit 134, and the number storage unit 251 can be usually realized by an MPU, a memory, or the like. The processing procedure of the processing unit 13 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 output unit 14 may be considered as including or not including an output device such as a display or a speaker. The output unit 14 can be realized by output device driver software, or output device driver software and an output device.

  The transmission unit 15 and the server transmission unit 23 are usually realized by wireless or wired communication means, but may be realized by broadcasting means.

  Next, the operation of the map information system will be described. First, operation | movement of the map information processing apparatus 1 is demonstrated using the flowchart of FIG. 3, FIG.

  (Step S301) The processing unit 13 determines whether or not the navigation-related function is being executed. If the navigation related function is being executed, the process goes to step S313, and if the navigation related function is not being executed, the process goes to step S302. Here, the processing unit 13 or means (not shown) may determine whether or not the map information processing apparatus 1 is being activated. If it is activated, the process may go to step S313, and if not activated, the process may go to step S302.

  (Step S302) The processing unit 13 determines whether or not the update of the map information is interrupted. If it is suspended, the process goes to step S303, and if not suspended, the process goes to step S304. For example, the processing unit 13 may determine whether or not the update of the map information is suspended depending on whether or not the state information exists in the storage unit 10.

  (Step S <b> 303) The processing unit 13 acquires state information stored in the storage unit 10.

  (Step S304) The transmission unit 15 inquires the map information server device 2 to acquire map information.

  Specifically, when it has been interrupted, the transmission unit 15 uses the state information to inquire the map information server device 2 in order to acquire the map information after the update of the map information is interrupted. Such an inquiry has, for example, a version identifier for identifying the requested map information version and a location identifier for specifying the location of the interrupted or necessary map information.

  Specifically, if not interrupted, the transmission unit 15 inquires of the map information server device 2 whether one or more difference maps that are updated map parts exist. For example, the transmission unit 15 transmits an inquiry having a version identifier for identifying the version of the current map information to the map information server device 2. Moreover, the transmission part 15 may transmit the inquiry which has the version identifier of the version following the version of the current map information to the map information server apparatus 2, for example.

  (Step S305) In response to the inquiry in step S304, the receiving unit 12 determines whether one or more difference maps to be received exist in the map information server device 2. When it exists, it goes to step S306, and when it does not exist, it returns to step S301. In addition, the receiving part 12 receives the presence information which shows whether the 1 or more difference map which should be received exists, for example from the map information server apparatus 2. FIG.

  (Step S306) The receiving unit 12 receives one or more difference maps. In general, the reception of the difference map is continued until the reception of the map information of one version is completed.

  (Step S307) The accumulation unit 131 accumulates one or more difference maps received in step S306 in the storage unit 10. The accumulation unit 131 normally accumulates the difference maps received by the reception unit 12 sequentially.

  The accumulation unit 131 may accumulate only one or more difference maps received by the reception unit 12 in the storage unit 10. The storage unit 131 may overwrite one or more difference maps received by the receiving unit 12. Further, the accumulation unit 131 may accumulate the remaining map information that has not been accumulated in the storage unit 10 after the interruption.

  (Step S308) The accumulation unit 131 determines whether or not to end the difference update process for one version. If the difference update process is to end, the process goes to step S311. If the difference update process is not to end, the process goes to step S309. The difference update process is a process of accumulating a difference map so that all the map information of one version is accumulated. For example, when the map parts of all the planned areas are accumulated in the storage unit 10, the accumulation unit 131 determines that the one-version difference update process is to be ended. In addition, for example, when the storage unit 131 receives the difference information transmission end information from the map information server device 2, the storage unit 131 determines to end the difference update process of one version.

  (Step S309) The interruption unit 133 determines whether there is an interruption reason. The reason for interruption is, for example, the start of execution of a navigation related function, the start of execution of a navigation related function, or the like. The start of the execution of the navigation-related function means that, for example, an instruction to execute the navigation-related function is received.

  (Step S310) The interruption unit 133 performs a process for interrupting the difference update process. The process returns to step S301. The interruption unit 133 accumulates status information in the storage unit 10, for example. Note that the status information is information that identifies completed work, for example.

  (Step S311) The determination unit 132 determines whether the difference update process has succeeded or failed. If the difference update process has succeeded, the process returns to step S301, and the process proceeds to step S312 where the difference update process has failed.

  (Step S312) The transmission unit 15 transmits the notification information to the map information server device 2. The process returns to step S301. The notification information includes, for example, a terminal identifier that identifies the map information processing apparatus 1 and a version identifier that identifies the version of the map information that failed to be updated.

  (Step S313) The reception unit 11 determines whether or not an instruction to output map information has been received. When the output instruction is accepted, the process goes to step S314, and when the output instruction is not accepted, the process goes to step S319. For example, when ACC is turned on, the reception unit 11 receives an output instruction for map information. Further, for example, when the vehicle engine is turned on, the reception unit 11 receives an output instruction for map information.

  (Step S314) The output unit 14 acquires the latest version of map information from the storage unit 10. Note that there may be only one version of map information in the storage unit 10.

  (Step S315) The processing unit 13 determines whether or not a defect exists in the map information acquired immediately before. If there is a problem, go to step S316, and if there is no problem, go to step S318.

  (Step S316) The output unit 14 acquires the map information in the next predetermined order from the storage unit 10. When the map information acquired immediately before is the latest version of map information, the map information in the next predetermined order is the map information of the version immediately before the latest version or the original map information. When the map information acquired immediately before is the map information of the version immediately before the latest version, the map information in the next predetermined order is the original map information. The predetermined next order means the next priority order of use with respect to the predetermined order of use.

  (Step S317) The processing unit 13 deletes the version of the map information in which the defect exists. The process returns to step S315.

  (Step S318) The output unit 14 outputs the map information acquired immediately before. The process returns to step S301.

  (Step S319) The reception unit 11 determines whether other instructions, information, and the like have been received. When other instructions and information are accepted, the process goes to step S320, and when other instructions and information are not accepted, the process returns to step S301.

  (Step S320) The processing unit 13 and the like perform processing according to other instructions and information. The process returns to step S301. In addition, the process according to another instruction | indication, information, etc. is processes, such as route search and route guidance, for example.

  3 and 4, the map information processing apparatus 1 may receive one or more difference maps from the map information server apparatus 2 without making an inquiry from the map information processing apparatus 1. That is, transmission / reception of one or more difference maps may be a push type or a pull type.

  In the case of the push type, the map information processing apparatus 1 does not receive one or more difference maps or does not accumulate one or more difference maps while the navigation-related function is being executed.

  In the flowcharts of FIGS. 3 and 4, the processing is ended by powering off or interruption for processing termination.

  Further, in the flowcharts of FIGS. 3 and 4, when one version of the difference update process is completed, the processing unit 13 determines whether map information other than the predetermined version of the map information exists in the storage unit 10. It may be determined whether or not. If map information other than a predetermined version of map information exists in the storage unit 10, the processing unit 13 may delete map information other than the predetermined version of map information from the storage unit 10. good.

  Next, operation | movement of the map information server apparatus 2 is demonstrated using the flowchart of FIG.

  (Step S <b> 501) The server reception unit 24 determines whether an inquiry has been received from the map information processing apparatus 1. If an inquiry is received, the process goes to step S502. If no inquiry is received, the process goes to step S508.

  (Step S502) The server processing unit 25 refers to the server storage unit 21 and acquires presence information indicating whether or not a difference map corresponding to the inquiry from the map information processing apparatus 1 exists.

  (Step S503) The server transmission unit 23 transmits the presence information acquired in step S502 to the map information processing apparatus 1 that transmitted the inquiry.

  (Step S504) The server processing unit 25 determines whether or not the presence information acquired in step S502 is information indicating “presence”. If the information indicates “exist”, the process proceeds to step S505. If the information does not indicate “exist”, the process proceeds to step S507. Note that the information indicating “exist” is information indicating the presence.

  (Step S505) The server processing unit 25 acquires one or more difference maps corresponding to the inquiry from the server storage unit 21.

  (Step S506) The server transmission unit 23 transmits one or more difference maps acquired in step S505 to the map information processing apparatus 1. The process returns to step S501.

  (Step S <b> 507) The server transmission unit 23 transmits a message to the map information processing apparatus 1 that there is no difference map corresponding to the inquiry from the map information processing apparatus 1. The process returns to step S501. Such a message is normally output by the map information processing apparatus 1.

  (Step S <b> 508) The server reception unit 24 determines whether notification information has been received from the map information processing apparatus 1. When the notification information is received, the process goes to step S509. When the notification information is not received, the process returns to step S501.

  (Step S509) The number storage unit 251 increments the number of times the notification information is received in association with the device identifier included in the notification information and the version identifier included in the notification information. It is assumed that the number of times the notification information is received is managed in the server storage unit 21 in association with the device identifier and the version identifier.

  (Step S510) The server processing unit 25 determines whether the number of times corresponding to the device identifier and the version identifier included in the received notification information is so large as to satisfy a predetermined condition. If there are too many conditions that satisfy a predetermined condition, the process goes to step S511, and if there are not enough conditions that satisfy a predetermined condition, the process goes to step S505.

  (Step S511) The server transmission unit 23 transmits a message indicating that one or more difference maps are not transmitted to the map information processing apparatus 1. The process returns to step S501.

  In the flowchart of FIG. 5, the accumulated number is reset after a time equal to or greater than the threshold value has elapsed. The reset means that the number of times becomes “0”, information including the number of times is deleted, and the like.

  Further, in the flowchart of FIG. 5, the processing is ended by powering off or interruption of processing end.

  Hereinafter, a specific operation of the map information system in the present embodiment will be described. A conceptual diagram of the map information system is shown in FIG.

  Now, it is assumed that the map information processing apparatus 1 is a navigation apparatus installed in a vehicle. Further, the case where the navigation-related function is not executed here is a case where ACC is off, and a case where a predetermined time (here, 3 am) is reached. That is, the map information processing apparatus 1 makes an inquiry to the map information server apparatus 2 as to whether or not the map information needs to be updated when a predetermined time comes.

  Then, the server storage unit 21 of the map information server device 2 stores an update retry count management table having the structure shown in FIG. The update trie number management table is a table for managing the number of times the map information is continuously updated. The update try count management table manages the number of update tries for each map information processing apparatus 1 and each version of map information. The update trie number management table has one or more records having “ID”, “device identifier”, “version identifier”, and “number of times”. “Device identifier” is information for identifying a navigation device. “Number of times” is the number of times an update is tried. It should be noted that the number of consecutive update attempts does not normally include the number of tries after a time equal to or greater than the threshold has elapsed.

  Furthermore, it is assumed that version 3 map information, which is the latest map information, is accumulated in the server storage unit 21 of the map information server device 2 at midnight on May 4, 2015. The server storage unit 21 stores the latest map information in association with the version identifier “3”.

  In such a situation, the map information system operates as follows. That is, for example, when it is 3:00 am on May 4, 2015, the processing unit 13 of the map information processing apparatus 1 determines whether or not the navigation-related function is being executed. The vehicle user is currently driving, the map information processing apparatus 1 is operating, map information is displayed on the map information processing apparatus 1, and route guidance is being performed. Therefore, the processing unit 13 determines that the navigation related function is being executed.

  Thereafter, the accepting unit 11 accepts other instructions and information, and the processing unit 13 and the like perform processing according to the other instructions and information.

  That is, the map information was not updated on May 4, 2015.

  Next, at 3 am on May 5, 2015, the next day, the processing unit 13 of the map information processing apparatus 1 determines whether or not the navigation-related function is being executed. Then, the engine of the vehicle is off, ACC is also off, and the processing unit 13 determines that the navigation-related function is not being executed.

  Next, the processing unit 13 detects that there is no state information in the storage unit 10. Then, the processing unit 13 determines that the update of the map information is not interrupted.

  And the transmission part 15 inquires the map information server apparatus 2 in order to acquire map information. This inquiry is an inquiry as to whether or not a new version of map information exists in the map information server device 2. The inquiry includes the version identifier “2” of the latest map information version stored in the map information processing apparatus 1. That is, the transmission unit 15 transmits the command “map update 2” to the map information server device 2. “Map update” of “Map update 2” is a command for prompting map update, and “2” is a version identifier.

  Next, the server receiving unit 24 of the map information server device 2 receives the command “map update 2” from the map information processing device 1.

  Next, the server processing unit 25 refers to the server storage unit 21 and acquires presence information indicating whether or not a difference map corresponding to the inquiry from the map information processing apparatus 1 exists. That is, the server processing unit 25 acquires the version identifier “2” from the query “map update 2”, acquires the latest version identifier “3” from the server storage unit 21, and compares the two version identifiers. Since the two version identifiers match, the server processing unit 25 obtains the presence information “existence”.

  Next, the server transmission unit 23 transmits the presence information “presence” to the map information processing apparatus 1 that has transmitted the inquiry.

  Next, the receiving unit 12 of the map information processing apparatus 1 receives the presence information “present”. And the receiving part 12 judges that the 1 or more difference map which should be received exists in the map information server apparatus 2 according to an inquiry.

  Next, the server processing unit 25 of the map information server device 2 determines that the acquired presence information is information indicating “existence”. Then, the server processing unit 25 acquires one or more version 3 difference maps corresponding to the inquiry from the server storage unit 21.

  Next, the server transmission unit 23 transmits one or more difference maps of version 3 to the map information processing apparatus 1.

  Next, the receiving unit 12 of the map information processing apparatus 1 receives one or more difference maps. Then, the accumulation unit 131 accumulates the received one or more difference maps in the storage unit 10. Next, the map parts of all regions are accumulated in the storage unit 10, and the accumulation unit 131 determines that the difference update process for one version (version 3) has been completed.

  Next, the determination unit 132 determines that the difference update process is successful, for example, by DSKCHK.

  As described above, the map update process is completed in a favorable environment for map update in which navigation-related functions are not executed. The map information processing apparatus 1 stores the latest version 3 map information.

  Here, the processing unit 13 may delete the version 2 map information. In such a case, the predetermined version of the map information that should be stored is, for example, the original map information and the latest version of the map information. In such a case, when there is a defect in the latest version of the map information, the original map information is used to execute the navigation-related function.

  Then, it is assumed that version 4 map information, which is the latest map information, is accumulated in the server storage unit 21 of the map information server device 2 at midnight on May 6, 2015. The server storage unit 21 stores the latest map information in association with the version identifier “4”.

  It is assumed that the vehicle user parks the vehicle in an indoor parking lot where radio waves are difficult to reach.

  Next, when it is 3:00 am on May 6, 2015, the processing unit 13 of the map information processing apparatus 1 determines whether or not the navigation-related function is being executed. Then, the engine of the vehicle is off, ACC is also off, and the processing unit 13 determines that the navigation-related function is not being executed.

  Next, the processing unit 13 determines that the update of the map information is not interrupted.

  Then, the transmission unit 15 transmits the command “map update 3” to the map information server device 2 in order to acquire the map information.

  Next, the server receiving unit 24 of the map information server device 2 receives the command “map update 3” from the map information processing device 1.

  Next, the server processing unit 25 refers to the server storage unit 21 and acquires presence information indicating whether or not a difference map corresponding to the inquiry from the map information processing apparatus 1 exists. That is, the server processing unit 25 acquires the version identifier “3” from the query “map update 3”, acquires the latest version identifier “4” from the server storage unit 21, and compares the two version identifiers. Since the two version identifiers match, the server processing unit 25 obtains the presence information “existence”.

  Next, the server transmission unit 23 transmits the presence information “presence” to the map information processing apparatus 1 that has transmitted the inquiry.

  Next, the receiving unit 12 of the map information processing apparatus 1 receives the presence information “present”. And the receiving part 12 judges that the 1 or more difference map which should be received exists in the map information server apparatus 2 according to an inquiry.

  Next, the server processing unit 25 of the map information server device 2 determines that the acquired presence information is information indicating “existence”. Then, the server processing unit 25 acquires one or more version 4 difference maps corresponding to the inquiry from the server storage unit 21.

  Next, the server transmission unit 23 transmits one or more difference maps of version 4 to the map information processing apparatus 1.

  Next, it is assumed that the receiving unit 12 of the map information processing apparatus 1 tries to receive one or more difference maps, but the strength of the radio wave is weak and some of the difference maps cannot be received. Then, the accumulation unit 131 accumulates the received partial difference map in the storage unit 10. Next, all the received difference maps are accumulated in the storage unit 10, and the accumulation unit 131 determines that the difference update processing for one version (version 4) has been completed. Note that the version 4 difference update processing is not completed.

  Next, the determination unit 132 determines that the difference update process has failed because, for example, there are no version 4 map parts in all regions.

  Next, the transmission unit 15 acquires the device identifier “d01” of the map information processing device 1 from the storage unit 10. Further, the transmission unit 15 acquires the version identifier “4” from the storage unit 10. Then, the transmission unit 15 transmits notification information including the device identifier “d01” and the version identifier “4” to the map information server device 2. The notification information is, for example, “notification d01, 4”.

  Next, the server reception unit 24 of the map information server device 2 receives the notification information “notification d01, 4” from the map information processing device 1.

  Next, the number storage unit 251 increments the number of times the notification information is received in association with the device identifier “d01” included in the notification information and the version identifier “4” included in the notification information. Then, a record of “ID = 3” in the update try number management table shown in FIG. 6 is obtained.

  Then, the above update process is repeated three times, and the record of “ID = 3” in the update retry count management table shown in FIG. 6 becomes “device identifier: d01, version identifier: 4, number of times: 3”. To do.

  Then, the server processing unit 25 determines that the number of times corresponding to the device identifier and the version identifier included in the received notification information is so large as to satisfy a predetermined condition. The predetermined condition here is “number of times> = 3”.

  Next, the server transmission unit 23 transmits a message indicating that one or more version 4 difference maps are not transmitted to the map information processing apparatus 1.

  Next, the receiving unit 12 of the map information processing apparatus 1 receives a message indicating that transmission is not performed. Then, the processing unit 13 accumulates the message. It is assumed that the accumulated message is output by the output unit 14 when the map information processing apparatus 1 is activated next time.

  Next, when it is 3:00 am on May 7, 2015, the processing unit 13 of the map information processing apparatus 1 determines whether or not the navigation-related function is being executed. Then, the engine of the vehicle is off, ACC is also off, and the processing unit 13 determines that the navigation-related function is not being executed.

  Next, the processing unit 13 determines that the update of the map information is not interrupted.

  Then, the transmission unit 15 transmits the command “map update 3” to the map information server device 2 in order to acquire the map information.

  Next, the server receiving unit 24 of the map information server device 2 receives the command “map update 3” from the map information processing device 1.

  Next, the server processing unit 25 obtains presence information “presence” that a difference map corresponding to the inquiry from the map information processing apparatus 1 exists.

  Next, the server transmission unit 23 transmits the presence information “presence” to the map information processing apparatus 1 that has transmitted the inquiry.

  Next, the receiving unit 12 of the map information processing apparatus 1 receives the presence information “present”. And the receiving part 12 judges that the 1 or more difference map which should be received exists in the map information server apparatus 2 according to an inquiry.

  Next, the server processing unit 25 of the map information server device 2 determines that the acquired presence information is information indicating “existence”. Then, the server processing unit 25 acquires one or more version 4 difference maps corresponding to the inquiry from the server storage unit 21.

  Next, the server transmission unit 23 transmits one or more difference maps of version 4 to the map information processing apparatus 1.

  Next, the receiving unit 12 of the map information processing apparatus 1 receives one or more difference maps. Then, the accumulation unit 131 accumulates the received one or more difference maps in the storage unit 10.

  It is assumed that the user has turned on the engine to move the vehicle when reception and storage of one or more difference maps of version 4 are not completed.

  Then, the display of the map information among the navigation-related functions of the map information processing apparatus 1 is about to start. It is assumed that the display of the map information is about to start immediately before the display of the map information.

  Next, the interruption unit 133 determines that there is an interruption reason. Then, the interruption unit 133 performs a process for interrupting the difference update process. That is, the interruption unit 133 configures state information that is information relating to the accumulated difference map and accumulates it in the storage unit 10. The state information is “version identifier: 4, accumulated difference map: C”. Note that “accumulated difference map: C” indicates that the version 4 map has been accumulated up to the areas A to C, and D to Z have not been accumulated. It is assumed that the map information has map parts of areas A to Z, and the map parts are downloaded in the order of A to Z.

  Then, the map information processing apparatus 1 executes navigation-related functions using version 3 map information. That is, on May 7, 2015, the download of version 4 map information was not successful. In this case, the update of the version 4 map information is interrupted.

  Next, at 3 am on May 8, 2015, the processing unit 13 of the map information processing apparatus 1 determines whether or not the navigation-related function is being executed. Then, the engine of the vehicle is off, ACC is also off, and the processing unit 13 determines that the navigation-related function is not being executed.

  Next, the processing unit 13 detects that the state information exists in the storage unit 10 and determines that the update of the map information is being interrupted. Then, the processing unit 13 acquires state information “version identifier: 4, accumulated difference map: C” stored in the storage unit 10.

  Next, the transmission unit 15 inquires the map information server device 2 in order to acquire the difference map with the remaining version 4. It is assumed that the inquiry is an instruction “interrupt map update 4, C”. The “interrupt map update” in the command indicates an instruction to continue updating the interrupted map information. In addition, “4” in the command indicates that the version of the map information to be updated is “4”. Furthermore, “C” in the command indicates that the accumulated difference map is up to the region “C”.

  Next, the server reception unit 24 of the map information server device 2 receives the inquiry “interrupt map update 4, C” from the map information processing device 1.

  Next, the server processing unit 25 determines that a difference map corresponding to the inquiry from the map information processing apparatus 1 exists. Then, the server processing unit 25 acquires the presence information “existence”.

  Next, the server transmission unit 23 transmits the presence information “presence” to the map information processing apparatus 1 that has transmitted the inquiry.

  Next, the receiving unit 12 of the map information processing apparatus 1 receives the presence information “present”. And the receiving part 12 judges that the 1 or more difference map which should be received exists in the map information server apparatus 2 according to an inquiry.

  Next, the server processing unit 25 of the map information server device 2 determines that the acquired presence information is information indicating “existence”. Then, the server processing unit 25 acquires, from the server storage unit 21, the difference map from the area “D” to the area “D” of the area “C” of the version 4 corresponding to the inquiry.

  Next, the server transmission unit 23 transmits the difference map from the version 4 area “D” to “Z” to the map information processing apparatus 1.

  Next, the reception unit 12 of the map information processing apparatus 1 receives the difference map from the version 4 area “D” to “Z”. Then, the accumulation unit 131 accumulates the received one or more difference maps in the storage unit 10. Next, map parts of all areas of version 4 are accumulated in the storage unit 10, and the accumulation unit 131 determines that the version 4 difference update processing has been completed.

  Next, the determination unit 132 determines that the difference update process is successful, for example, by CHKDSK.

  As described above, even when the map update process is interrupted, the map update process is continued in a favorable environment for map update in which the navigation-related functions are not executed, and the version 4 map update process is completed.

  Here, the processing unit 13 may delete the version 3 map information. In such a case, the predetermined version of the map information that should be stored is, for example, the original map information and the latest version of the map information. In such a case, when there is a defect in the latest version of the map information, the original map information is used to execute the navigation-related function.

  As described above, according to the present embodiment, the map information processing apparatus that performs the map information difference update process can safely perform the difference update.

  In addition, according to the present embodiment, unnecessary processing need not be executed in an environment where a difference map cannot be received.

  Furthermore, according to the present embodiment, the map information processing apparatus that performs the map information difference update process can perform the difference update safely and efficiently.

  In addition, according to this Embodiment, the trigger of a difference map update process is not ask | required. Moreover, the trigger of the difference map update process at the time of interruption is not ask | required. The map information difference update process may be performed when the navigation-related function is not operating, and the map information difference update process may not be performed when the navigation-related function is operating.

  Furthermore, the processing in the present embodiment may be realized by software. Then, this software may be distributed by software download or the like. Further, this software may be recorded and distributed on a recording medium such as a CD-ROM. This also applies to other embodiments in this specification. In addition, the software which implement | achieves the map information processing apparatus in this Embodiment is the following programs. That is, in this program, the computer-accessible recording medium is map information of a part of the area, and stores map information having two or more map parts that are parts constituting a part of the whole map information. And a storage unit that receives one or more difference maps that are map parts of the updated area, and stores one or more difference maps received by the reception unit in the storage unit. And a processing unit that executes a navigation-related function using the map information stored in the storage unit, and when the processing unit is executing a navigation-related function, the receiving unit performs A difference update process including a process of receiving one or more difference maps and a process of storing one or more difference maps performed by the storage unit, or a process of receiving one or more difference maps performed by the receiver unit. As an non-difference update process, or does not perform differential update processing including processing for storing the one or more differential map of the storage unit is performed, a program for causing a computer to function.

  In the above program, when the processing unit does not execute the navigation-related function, it is a situation where the map information difference update process can be executed and the map information processing apparatus is not operating. It is preferable that the program is a functioning program.

  In the above program, when the processing unit does not execute the navigation-related function, it is preferable that the program causes the computer to function as a case where the accessory power is off.

  In the above program, one or more difference map reception processes in the reception unit, one or more difference map accumulation processes in the accumulation unit, or one or more difference map reception processes and accumulation in the reception unit A determination unit that determines whether or not a difference update process that is a process of accumulating one or more difference maps in the unit has succeeded or failed, and notification information that indicates that the determination unit has failed when the determination unit determines that the process has failed A program that causes a computer to function as a transmission unit that transmits to a server device, and that causes the reception unit to receive at least a part of the difference map among the one or more difference maps again. It is preferable to be.

  In the above program, the transmitting unit does not transmit notification information corresponding to one or more difference maps of one version more than a predetermined number of times, or the transmitting unit outputs one or more difference maps of one version. When the corresponding notification information is transmitted a predetermined number of times, the receiving unit is a program that causes a computer to function as not receiving again at least a part of the one or more difference maps. It is preferable to be.

  In the above program, when the execution of the navigation-related function is started or the execution of the navigation-related function is started during the execution of the difference update process, the interruption for performing the process for interrupting the difference update process It is preferable that the program is a program that further functions a computer.

  In the program, the interruption unit accumulates one or more pieces of state information, which is information necessary for resuming the difference update process, in the storage unit, and the reception unit, the accumulation unit, or the reception unit It is preferable that the storage unit is a program that causes a computer to function as restarting the difference update process using the one or more state information.

  Moreover, the software which implement | achieves the map information server apparatus in this Embodiment is the following programs. In other words, in this program, the computer-accessible recording medium includes a server storage unit that can store one or more difference maps, and the computer transmits the one or more difference maps to the map information processing apparatus. When the number of failures of the difference update process in one map information processing apparatus is so large as to satisfy a predetermined condition, the server transmission unit may use the one or more difference maps as the one map information. This is a program that causes a computer to function as not being transmitted again to the processing device.

  In the above program, the server further receives a notification information from the map information processing apparatus, and a number storage unit that temporarily stores the number of times the notification information is received. When the number of times corresponding to the one map information processing device stored in the number storage unit is so large as to satisfy a predetermined condition, the one or more difference maps are not transmitted to the one map information processing device again. As a thing, it is suitable that it is a program which functions a computer.

  FIG. 7 shows the external appearance of a computer that executes the program described in this specification to realize the map information processing apparatus 1, the map information server apparatus 2, and the like according to the various embodiments described above. It goes without saying that the appearance of the map information processing apparatus 1 may be a diagram with reference numeral 1 in FIG. FIG. 7 is an overview diagram of the computer system 300, and FIG. 8 is a block diagram of the system 300.

  In FIG. 7, a computer system 300 includes a computer 301 including a CD-ROM drive 3012 and a touch panel monitor 304.

  8, in addition to the CD-ROM drive 3012, the computer 301 includes an MPU 3013, a bus 3014 connected to the MPU 3013 and the CD-ROM drive 3012, a ROM 3015 for storing programs such as a boot-up program, The RAM 3016 is connected to the MPU 3013 and temporarily stores application program instructions and provides a temporary storage space, and includes a hard disk 3017 for storing application programs, system programs, and data. Although not shown here, the computer 301 may further include a network card that provides connection to a LAN.

  A program that causes the computer system 300 to execute the functions of the map information processing apparatus 1 and the like of the above-described embodiment is stored in the CD-ROM 3101, inserted into the CD-ROM drive 3012, and further transferred to the hard disk 3017. good. Alternatively, the program may be transmitted to the computer 301 via a network (not shown) and stored in the hard disk 3017. The program is loaded into the RAM 3016 at the time of execution. The program may be loaded directly from the CD-ROM 3101 or the network.

  The program does not necessarily include an operating system (OS) or a third-party program that causes the computer 301 to execute the functions of the map information processing apparatus 1 according to 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 300 operates is well known and will not be described in detail.

  In the above program, in the step of transmitting information, the step of receiving information, etc., processing performed by hardware, for example, processing performed by a modem or an interface card in the transmission step (only performed by hardware) Processing) is not included.

  Further, the computer that executes the program may be singular or plural. That is, centralized processing may be performed, or distributed processing may be performed.

  In each of the above embodiments, it is needless to say that two or more communication means (terminal information transmission unit, terminal information reception unit, etc.) existing in one device may be physically realized by one medium. .

  In each of the above embodiments, each process (each function) may be realized by centralized processing by a single device (system), or by distributed processing by a plurality of devices. May be.

  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 map information processing apparatus according to the present invention has an effect that a difference update can be performed safely in a map information processing apparatus that performs map information difference update processing, and is useful as a map information processing apparatus and the like. .

DESCRIPTION OF SYMBOLS 1 Map information processing apparatus 2 Map information server apparatus 10 Storage part 11 Reception part 12 Reception part 13 Processing part 14 Output part 15 Transmission part 21 Server storage part 22 Server reception part 23 Server transmission part 24 Server reception part 25 Server processing part 131 Accumulation Unit 132 determination unit 133 interruption unit 134 route search unit 251 number of times storage unit

This first disclosure of the map information processing apparatus, the map information processing apparatus for performing a difference update processing of the map information, when the navigation-related functions associated with navigation of those該地view the information processing apparatus is not operating, the map information This is a map information processing apparatus that performs the difference update process and does not perform the map information difference update process when the navigation-related function is operating.

Moreover, the map information processing apparatus of this 2nd disclosure is map information of a part of area | region with respect to 1st disclosure , and two or more map parts which are components which comprise some map information of the whole A storage unit that can store map information including a receiving unit that receives one or more difference maps that are map parts of the updated region, and an accumulation that stores the one or more difference maps received by the receiving unit in the storage unit And a processing unit that executes a navigation-related function using the map information stored in the storage unit, and when the processing unit is executing a navigation-related function, the receiving unit performs one or more Difference update process including the difference map reception process and the one or more difference map accumulation process performed by the accumulation unit, or the difference update process including the one or more difference map reception process performed by the reception unit, or the accumulation unit The accumulation of one or more difference maps Difference update processing including management is a map information processing apparatus is not performed.

In addition, the map information processing apparatus according to the third disclosure has a situation in which the map information difference update process can be executed when the processing unit does not execute the navigation-related function with respect to the first or second disclosure . There is a map information processing apparatus which is present and the map information processing apparatus is not operating.

The map information processing apparatus according to the fourth disclosure is a case where the accessory power supply is off when the processing unit does not execute the navigation-related function with respect to any one of the first to third disclosures . It is a certain map information processing device.

The map information processing apparatus of the present fifth disclosure, with respect to the first fourth one of disclosure, one or more differential map in the processing, or storage unit of the reception of one or more differential map at the receiving unit A determination unit that determines whether or not the difference update process that is a process of storing or receiving one or more difference maps in the receiving unit and a process of storing one or more difference maps in the storing unit has succeeded or failed; And a transmission unit that transmits notification information indicating failure to the server device when the determination unit determines that the failure has occurred, and the reception unit includes at least a part of the difference map among the one or more difference maps. Is a map information processing apparatus that receives the information again.

The map information processing apparatus of the present sixth disclosure for the fifth disclosure, transmission unit, the notification information corresponding to a version of one or more differential map does not transmit a predetermined number of times or more Or when the transmitting unit transmits notification information corresponding to one or more difference maps of one version a predetermined number of times, the receiving unit selects at least some of the difference maps of the one or more difference maps. This is a map information processing apparatus that does not receive again.

The map information processing apparatus of the present seventh disclosure for the sixth one of the disclosed from the first, during the execution of the difference update process, or when the navigation-related function execution of the navigation-related functions is started When the execution of is started, the map information processing apparatus further includes an interruption unit that performs a process for interrupting the difference update process.

The map information processing apparatus of the present eighth disclosure against seventh disclosure, interruptions accumulates one or more status information is information necessary for the resumption of the difference update processing in the storage unit The reception unit or the storage unit, or the reception unit and the storage unit is a map information processing apparatus that restarts the difference update process using one or more pieces of state information.

The map information server device of the ninth disclosure includes a server storage unit that can store one or more difference maps, and a server transmission unit that transmits the one or more difference maps to the map information processing device. The transmission unit does not transmit one or more difference maps to the one map information processing apparatus again when the number of failures of the difference update processing in the one map information processing apparatus is large enough to satisfy a predetermined condition. An information server device.

In addition, the map information server device of the tenth disclosure has a server reception unit that receives notification information from the map information processing device, and a number-of-times storage that temporarily stores at least the number of times the notification information is received, with respect to the ninth disclosure . And the server transmission unit stores one or more difference maps as one map when the number of times corresponding to one map information processing device stored in the number storage unit is large enough to satisfy a predetermined condition. The map information server device is not transmitted again to the information processing device.

The map information processing apparatus 1 includes a storage unit 10, receiving unit 11, receiving unit 12, a processing unit 13, output unit 14, signal unit 15 feeding beauty Oyo.

When the determination unit 132 determines that the transmission unit 15 has failed, the transmission unit 15 transmits notification information indicating the failure to the map information server device 2 . The notification information includes, for example, a version identifier, a user identifier, and the like.

The server storage unit 21 constituting the map information server device 2 can store one or more difference maps. The server storage unit 21 may store map information that is a set of map parts in all areas. It is preferable that the server storage unit 21 stores map information of two or more versions in association with the version identifier. Server storage unit 21 in association with the device identifier, may store information indicating the number of times will be described later. The number of times is the number of times the difference update process has failed. The server storage unit 21 may store information indicating the number of times described later in association with the device identifier and the version identifier.

Claims (14)

In the map information processing apparatus that performs the map information difference update process,
When navigation-related functions related to navigation of the map information processing apparatus are not operating, map information difference update processing is performed, and when navigation-related functions are operating, map information difference updating processing is not performed. Map information processing device. A storage unit capable of storing map information having two or more map parts, which are map information of a part of the area, and part of the whole map information;
A receiving unit that receives one or more difference maps that are map parts of the updated region;
An accumulation unit that accumulates one or more difference maps received by the reception unit in the storage unit;
Using the map information stored in the storage unit, and a processing unit for executing a navigation-related function,
When the processing unit does not execute a navigation-related function, a difference update process including a reception process of one or more difference maps performed by the reception unit and a storage process of one or more difference maps performed by the storage unit Or a difference update process including a process of receiving one or more difference maps performed by the receiving unit, or a difference update process including a process of storing one or more difference maps performed by the storage unit. The map information processing apparatus described. 3. The map information processing apparatus according to claim 2, wherein when the processing unit does not execute a navigation-related function, the map information difference update process can be executed and the map information processing apparatus is not operating. . The map information processing apparatus according to claim 2 or 3, wherein when the processing unit is not executing a navigation-related function, the accessory power supply is off. Processing for receiving one or more difference maps in the receiving unit, processing for storing one or more difference maps in the storing unit, or processing for receiving one or more difference maps in the receiving unit and one or more in the storing unit A determination unit that determines whether the difference update process, which is the process of storing the difference map of the success, has succeeded or failed,
A transmission unit that transmits notification information indicating the failure to the server device when the determination unit determines that it has failed;
The receiver is
The map information processing apparatus according to any one of claims 2 to 4, wherein at least a part of the one or more difference maps is received again. The transmission unit does not transmit the notification information corresponding to one or more difference maps of one version more than a predetermined number of times, or the transmission unit corresponds to the one or more difference maps of one version. The map information processing apparatus according to claim 5, wherein the receiving unit does not receive at least a part of the difference map of the one or more difference maps again. When the execution of the navigation-related function is started or when the execution of the navigation-related function is started during the execution of the difference update process, the apparatus further includes an interruption unit that performs a process for interrupting the difference update process. The map information processing apparatus according to any one of claims 1 to 6. The interruption part is
Storing one or more pieces of state information, which is information necessary for resuming the differential update process, in the storage unit;
The map information processing apparatus according to claim 7, wherein the reception unit, the storage unit, or the reception unit and the storage unit restart the difference update process using the one or more state information. A server storage unit capable of storing one or more difference maps;
A server transmission unit that transmits the one or more difference maps to the map information processing apparatus,
The server transmission unit
A map information server that does not transmit the one or more difference maps to the one map information processing apparatus again when the number of failures of the difference update process in the one map information processing apparatus is large enough to satisfy a predetermined condition apparatus. A server receiving unit for receiving notification information from the map information processing apparatus;
A number storage unit that temporarily stores at least the number of times the notification information is received;
The server transmission unit
When the number of times corresponding to the one map information processing device stored in the number storage unit is so large as to satisfy a predetermined condition, the one or more difference maps are transmitted again to the one map information processing device. The map information server device according to claim 9 which is not. The recording medium is
A storage unit capable of storing map information having two or more map parts, which are map information of a part of the area and part of the whole map information;
A map information processing method realized by a receiving unit, a storage unit, and a processing unit,
A receiving step in which the receiving unit receives one or more difference maps which are map parts of the updated area;
An accumulating step in which the accumulating unit accumulates one or more difference maps received by the receiving unit in the storage unit;
The processing unit functions as a processing step for executing a navigation-related function using the map information stored in the storage unit,
When a navigation-related function is executed in the processing step, a difference update process including a process of receiving one or more difference maps in the receiving step and a process of storing one or more difference maps in the storing step, or A map information processing method that does not perform a difference update process including a process of receiving one or more difference maps in the reception step or a difference update process including a process of storing one or more difference maps in the accumulation step. Computer-accessible recording media
A storage unit capable of storing map information having two or more map parts, which are map information of a part of the area and part of the whole map information;
Computer
A receiving unit that receives one or more difference maps that are map parts of the updated region;
An accumulation unit that accumulates one or more difference maps received by the reception unit in the storage unit;
Using the map information stored in the storage unit, function as a processing unit that executes navigation-related functions,
When the processing unit is executing a navigation-related function, a difference update process including a process of receiving one or more difference maps performed by the receiver and a process of storing one or more difference maps performed by the storage unit Or a difference update process including a process of receiving one or more difference maps performed by the receiver, or a difference update process including a process of storing one or more difference maps performed by the storage unit. A program to make it work. The recording medium is
A server storage unit capable of storing one or more difference maps;
A map information processing method realized by a server transmission unit,
The server transmission unit includes a server transmission step of transmitting the one or more difference maps to a map information processing apparatus;
In the server transmission step,
Map information processing that does not transmit the one or more difference maps to the one map information processing device again when the number of failures of the difference update processing in the one map information processing device is large enough to satisfy a predetermined condition Method. Computer-accessible recording media
A server storage unit capable of storing one or more difference maps;
Computer
Function as a server transmission unit that transmits the one or more difference maps to the map information processing apparatus;
The server transmission unit
In the case where the number of failures of the difference update process in one map information processing apparatus is so large as to satisfy a predetermined condition, the one or more difference maps are not transmitted again to the one map information processing apparatus, A program that causes a computer to function.