JP6551127B2 - Update information distribution system, update information distribution method, and update information distribution program - Google Patents

Description

  The present invention relates to an update information distribution system, an update information distribution method, and an update information distribution program.

  Conventionally, as a technology for updating map information of a plurality of map display terminals, a map distribution server that distributes update information for updating map information is provided on the center side, and the map distribution server to each map display terminal On the other hand, a technique for distributing update information (for example, see Patent Document 1) has been known.

  However, the map distribution server on the center side in this technology generates and distributes update information corresponding to the received distribution request every time it receives a distribution request from each map display terminal. When distribution requests are concentrated, the processing load on the map distribution server for generating update information increases, processing delay may occur, and many errors due to the processing delay may occur. It was.

  Therefore, in order to reduce the processing load of the map distribution server, which is the cause of the error, for some distribution requests, access restrictions that do not generate and distribute update information are set according to the amount of the processing load. There has been proposed a technique for reducing the processing load of the map distribution server for generating update information by uniformly performing the process.

JP 2010-210433 A

  However, in the above-described technology for reducing the processing load of the map distribution server for generating the update information, since access restriction is uniformly performed on each map display terminal, the map information on each map display terminal is updated. It was difficult to meet individual needs.

  The present invention has been made in view of the above, and an update information distribution system, an update information distribution method, and an update that can appropriately distribute update information according to the update needs of each map display terminal An object is to provide an information distribution program.

In order to solve the above-described problems and achieve the object, an update information distribution system according to the present invention updates the map information in response to a distribution request from a map display terminal having map information for displaying a map. An update information distribution system for distributing update information for receiving, receiving means for receiving the distribution request, and each time the receiving means receives the distribution request, based on attributes of the received distribution request, said determining means for determining the allowable ratio corresponding to the probability that the distribution of the update information is permitted, on the basis of the allowable rate of the determining means determines, and a delivery means for delivering the update information, the allowable The rate is an index as to whether or not the distribution of the update information is allowed, and the attribute of the distribution request is a distribution request that specifies a location of a distribution request area that is an area for requesting distribution in the map information Area location specifying information, home location specifying information for specifying the location of the user's home on the map display terminal, current location specifying information for specifying the location of the current location of the map display terminal, specifying the location of the destination of the map display terminal Including at least one specific information of destination location specification information or middle point location specification information specifying the location of the home location and the midpoint of the destination location, the determination means including: It is determined by specifying the allowance rate corresponding to the at least one specific information in the storage means in which the allowance rate identification information which is the information for identifying the allowance rate is stored, and the delivery means The update information is distributed based on a random number value based on the determined allowance rate and identification information for uniquely identifying the map display terminal .

The update information distribution method according to the present invention is an update information distribution method for distributing update information for updating the map information in response to a distribution request from a map display terminal having map information for displaying a map. The receiving unit receives the distribution request, and the determining unit receives the distribution request every time the receiving unit receives the distribution request, based on the attribute of the received distribution request. a determination step of determining a permissible ratio corresponding to the probability that the distribution is permitted, the distribution means includes a delivery step in which the determining step on the basis of the allowable rate for determining, for distributing the update information, the allowable The rate is an index as to whether or not the distribution of the update information is allowed, and the attribute of the distribution request is an allocation specifying a location of a distribution request area that is an area for requesting distribution in the map information. Request area location specifying information, home location specifying information for specifying the location of the user's home on the map display terminal, current location specifying information for specifying the location of the current location of the map display terminal, destination location of the map display terminal The determination means includes at least one specific information of destination location specifying information to be specified or intermediate location specifying information for specifying a location of an intermediate point between the home location and the destination location, And determining by specifying the permissible rate corresponding to the at least one specific information in a storage unit storing permissible rate specifying information which is information for specifying the permissible rate, and the distributing unit includes the determining unit The update information is distributed on the basis of a random number value based on the allowance rate determined by the user, and identification information for uniquely identifying the map display terminal.

An update information distribution program according to the present invention distributes update information for updating the map information in response to a distribution request from a map display terminal having map information for displaying a map. The receiving means for receiving the distribution request and the computer each time the receiving means receives the distribution request, the distribution of the update information is allowed based on the attribute of the received distribution request. It functions as a determination means for determining an allowance rate corresponding to a probability, and a distribution means for distributing the update information based on the allowance rate determined by the determination means, wherein the allowance rate is the distribution of the update information Is an indicator as to whether or not the distribution request area is permitted, and the attribute of the distribution request is a distribution request area location information that specifies the location of the distribution request area, which is an area for requesting distribution in the map information. Information, home location specifying information for specifying the location of the user's home on the map display terminal, current location specifying information for specifying the location of the current location of the map display terminal, and a destination for specifying the location of the destination of the map display terminal At least one specific information of the place specifying information or the middle point place specifying information specifying the place of the midpoint of the place of the place of the home and the place of the destination; The allowance is determined by specifying the allowance rate corresponding to the at least one specific information in the storage means in which the allowance rate identification information which is the information for identifying the information is stored, and the delivery means determines the determination The update information is distributed based on a random value based on an allowable rate and identification information for uniquely identifying the map display terminal.

According to the update information distribution system, the update information distribution method, and the update information distribution program according to the present invention, each time the reception unit receives a distribution request, the update information distribution method is updated based on the attribute of the distribution request received by the reception unit. Since the permissible rate corresponding to the probability that delivery is allowed is determined, for example, individual circumstances at each map display terminal can be reflected in the permissible rate, and each map display can be performed while reducing the load for updating. Update information can be distributed appropriately according to the update needs of the terminal.
In addition, distribution request area place specification information for specifying the place of the distribution request area which is an area for requesting distribution in the map information, home place specification information for specifying the place of the user's home on the map display terminal Of current location specifying information for specifying the location, destination location specifying information for specifying the location of the destination of the map display terminal, or midpoint location specifying information for specifying the location of the home location and the midpoint of the destination From the determination of the allowance rate based on the at least one specific information, for example, the location of the distribution request area, the location of the user's home on the map display terminal, the location of the map display terminal, the location of the destination, or Based on the location of the midpoint, the tolerance rate corresponding to the need for updating can be determined, the load for updating reduced, and the distribution of updating information in line with the needs for updating It can be carried out.

It is a block diagram which illustrates the update information distribution system concerning each embodiment of the present invention. FIG. 6 is a diagram exemplifying tolerance rate identification information according to the first embodiment. It is a flowchart of a delivery process. It is a flowchart of a delivery determination process. FIG. 14 is a diagram exemplifying tolerance rate identification information according to the second embodiment. FIG. 18 is a diagram exemplifying tolerance rate identification information according to the third embodiment. FIG. 18 is a diagram exemplifying tolerance rate identification information according to the fourth embodiment. FIG. 18 is a diagram exemplifying tolerance rate identification information according to the fifth embodiment. It is the figure which illustrated the acceptance rate specific information of form 6 of execution.

  Hereinafter, embodiments of an update information distribution system, an update information distribution method, and an update information distribution program according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited by the embodiments.

  The update information distribution system according to the present invention determines an allowance rate corresponding to the probability that the distribution of the update information is permitted, based on the attribute of the received distribution request, each time a distribution request from the map display terminal is received. It is a system which delivers update information based on the determined acceptance rate.

  Here, the “map display terminal” is a display unit that displays a map based on map information, and is a device that is connected to a distribution unit that distributes update information in a wired or wireless manner. May include in-vehicle devices or terminal devices. The “in-vehicle device” is a device mounted on a vehicle, and specifically has a concept including an in-vehicle navigation device and the like. The “terminal device” is a device on which a predetermined computer is mounted, and specifically includes a stationary computer device, a smartphone, a portable navigation device, and the like.

  Also, “distribution request” is to request distribution of update information, and specifically, is a request including information used in processing for distribution of update information, for example, map information Distribution request area location specifying information for specifying the location of the distribution request area which is an area for requesting distribution, home location specifying information for specifying the user's home location on the map display terminal, and specifying the location of the current location of the map display terminal Among present location identification information, destination location identification information for identifying the destination location of the map display terminal, or midpoint location information for specifying the current location of the map display terminal and the midpoint of the destination location And identification information for identifying the map display terminal uniquely (hereinafter referred to as device ID) and the version of the map information stored in the map display terminal Is information including a order version specific information. Also, "attribute of distribution request" is a feature or property of the distribution request, and specifically, is information used to determine an allowance rate, and, for example, in addition to each specific information included in the distribution request It is a concept including at least one of day-of-the-week specifying information specifying the day of the week when the distribution request is made, or time specifying information specifying the time when the distribution request is made.

  The “permissible rate” is the probability corresponding to the probability that the distribution of the update information is permitted, and specifically, the degree of certainty that the distribution of the update information is permitted, for example, a percentage (that is, a percentage , Percent).

  And in each embodiment shown below, when a "map display terminal" is a "vehicle-mounted apparatus", each specific information shown below is used as a "delivery request attribute" for determining an allowance rate. The case will be described. Specifically, in the first embodiment, the case of using the distribution request area location specification information will be described as the “attribute of distribution request”, and in the second embodiment, the case of using the home location specification information and the destination location specification information In the third embodiment, the case of using the distribution request area place specifying information and the home place specifying information will be described. In the fourth embodiment, the case of using the distribution request area place specifying information and the destination place specifying information will be described. In the fifth embodiment, the case of using the distribution request area place specification information and the middle point place specification information will be described, and in the sixth embodiment, the distribution request area place specification information, the day of the week specification information, and the time specification information The case where it is used will be described, and in modifications, cases other than Embodiments 1 to 6 will be described. In the following, a vehicle equipped with an in-vehicle device (a vehicle on which a person who operates the in-vehicle device is boarded) will be referred to as “own vehicle”. The “own vehicle” is a concept including, for example, a four-wheeled vehicle, a two-wheeled vehicle, a bicycle, and the like. Hereinafter, a case where the own vehicle is a four-wheeled vehicle will be described.

Embodiment 1
First, the first embodiment will be described. In this embodiment, the case where the tolerance rate is determined using the "distribution request area location specification information" will be described.

(Constitution)
First, the update information distribution system 100 according to the present embodiment will be described. The update information distribution system 100 includes an in-vehicle device 1, a reception server 2, a differential map calculation server 3, a map information database server 4 (hereinafter, the database is referred to as “DB”), and a file server 5. FIG. 1 is a block diagram illustrating an update information distribution system according to each embodiment of the present invention. Although the update information distribution system 100 actually includes a plurality of other in-vehicle devices having the same configuration as that of the in-vehicle device 1 in addition to the in-vehicle device 1, here, for convenience of explanation, In the case where only the device 1 is shown in FIG. 1 and the in-vehicle device 1 and a plurality of other in-vehicle devices are generically referred to as “an in-vehicle device of the update information distribution system 100” will be described below.

(Configuration-In-vehicle device)
First, the configuration of the in-vehicle apparatus 1 will be described. As shown in FIG. 1, the in-vehicle apparatus 1 generally includes a communication unit 11, a touch panel 12, a display 13, a speaker 14, a current position detection unit 15, a data recording unit 16, and a control unit 17.

(Configuration-In-vehicle device-Communication unit)
The communication unit 11 is a communication unit that performs communication with the reception server 2 via a network. Although the specific type and configuration of the communication unit 11 are arbitrary, for example, known mobile wireless communication means can be used.

(Configuration-in-vehicle device-touch panel)
The touch panel 12 is an operation unit that receives various operation inputs from the user when pressed by a user's finger or the like. The touch panel 12 is formed to be transparent or translucent, and is provided on the front surface of the display 13 so as to overlap with the display surface of the display 13. As this touch panel 12, for example, a known touch panel provided with operation position detection means by a resistance film method, a capacitance method or the like can be used.

(Configuration-in-vehicle device-display)
The display 13 is display means for displaying various images under the control of the control unit 17 described later, and in particular, is display means for displaying a map based on map information stored in the map information DB 161 described later. The specific configuration of the display 13 is arbitrary, and for example, a flat panel display such as a known liquid crystal display or an organic EL display can be used.

(Configuration-In-vehicle device-Speaker)
The speaker 14 is an audio output unit that outputs information in voice based on the control of the control unit 17 described later. The specific form of the sound output from the speaker 14 is arbitrary, and it is possible to output a synthesized sound generated as necessary and a sound recorded in advance.

(Configuration-in-vehicle device-present position detection unit)
The current position detection unit 15 is a current position detection unit that detects the current position (current position) of the in-vehicle device 1. The current position detection unit 15 includes a GPS or a geomagnetic sensor (both not shown), and detects the current position (coordinates), direction, and the like of the in-vehicle device 1 by a known method.

(Configuration-in-vehicle device-data recording unit)
The data recording unit 16 is a recording unit that records a program and various data necessary for the operation of the in-vehicle device 1, and is configured using, for example, a hard disk (not shown) as an external recording device. However, instead of the hard disk or together with the hard disk, any other recording medium may be used, including a magnetic recording medium such as a magnetic disk or an optical recording medium such as a DVD or a Blu-ray disc (in each embodiment) The same applies to the data recording unit of each device).

  Further, the data recording unit 16 includes a map information DB 161.

  The map information DB 161 is a map information storage unit that stores map information. Here, “map information” is information used for guidance, and is information necessary for specifying various positions including roads, road intersections, road structures, facilities, etc. Node data (for example, node ID, coordinates, etc.) for each set node, and link data for each link set on a road (for example, link ID, link name, connection node ID, road coordinates, road type (for example, pay) Road, general road, elevated road, etc.), number of lanes, etc.), feature data (eg traffic lights, road signs, guardrails, facilities, etc.), terrain data, etc. Such map information in the map information DB 161 is updated in a distribution process described later.

(Configuration-In-vehicle device-Control unit)
The control unit 17 is a control unit that controls the in-vehicle apparatus 1. Specifically, the CPU, various programs to be interpreted and executed on the CPU (a basic control program such as an OS, and a specific function activated on the OS) And an internal memory such as a RAM for storing the program and various data. In particular, the update information distribution program according to the embodiment substantially configures each part of the control unit 17 by being installed in the on-vehicle apparatus 1 via an arbitrary recording medium or a network (reception in each embodiment) The same applies to the control unit of each device including the server). Here, for example, the following description will be made assuming that “device ID” is stored in the internal memory of the control unit 17. Here, the “apparatus ID” is identification information for uniquely identifying the in-vehicle apparatus of the update information distribution system 100 as described above, and can be expressed using arbitrary numbers, characters, and the like. Here, for example, it is a numerical value of a predetermined number of digits (for example, 7 digits) so that it can be used in “delivery determination processing” to be described later, and for each in-vehicle device of the update information delivery system 100 It is assumed that values are set to be different from each other (for example, to be incremented by one) in order from “0” in a predetermined order such as manufacturing order, for example, so as to be different numerical values. For example, a numerical value as a device ID stored in the internal memory of the control unit 17 is also referred to as “ID1” for convenience of explanation and will be described below.

(Configuration-Receiving server)
Next, the configuration of the receiving server 2 will be described. The receiving server 2 is a receiving means for receiving information, and is a device provided on the center side. Specifically, the in-vehicle device of the update information distribution system 100, the difference map calculation server 3 on the center side, An interface receiving server that functions as an interface between the map information DB server 4 and the file server 5, and generally includes a communication unit 21, a data recording unit 26, and a control unit 27 as shown in FIG. ing.

(Configuration-Receiving server-Communication unit)
The communication unit 21 is a communication unit that performs communication with the in-vehicle device 1 via a network, and in particular, is a reception unit that receives a distribution request. The specific configuration is the same as the configuration of the communication unit 11. It is.

(Configuration-Receiving server-Data recording unit)
The data recording unit 26 includes an allowance rate identification information DB 261.

  The allowance rate identification information DB 261 is storage means for storing the allowance rate identification information. Here, the “permissible rate identifying information” stored in the acceptable rate identifying information DB 261 is information for identifying the acceptable rate. FIG. 2 is a diagram exemplifying the allowance rate identification information. As shown in FIG. 2, the allowable rate specifying information is configured by associating an item “reference point” and an item “allowable rate” with information corresponding to each item. Here, the information corresponding to the item “reference point” is information for specifying a reference point for determining the distribution location in the distribution area, and in this embodiment, the home or purpose of the user of the in-vehicle device 1 in FIG. It is a place (in FIG. 2, "home", "destination"). Here, the “distribution area” is a partial area (distribution request area) of the map specified by the map information, and is an area that can be defined using an arbitrary method, but in the present embodiment, For example, the following description will be made assuming that the “delivery location” and the “reference point” are used. The “delivery place” is a place on the map specified by the map information, specifically, a place serving as a reference of the delivery area, for example, a place of a central point in the delivery area, the touch panel 12 It is registered when the user's predetermined operation is accepted via the interface. Further, the “reference point” is a point on the map specified by the map information, specifically, a point serving as a reference of the delivery location, for example, a point serving as a mark around the delivery location The user's predetermined operation is accepted through the touch panel 12 and registered. Here, for example, the following description will be made assuming that “delivery location” is coordinates of longitude and latitude, and “reference point” is the home or destination of the user of the in-vehicle device 1. The “home” is the home of the user of the in-vehicle device 1, and the “destination” is a point where the own vehicle is to be moved, and these “home” and “destination” For example, registration is performed by receiving a user's predetermined operation via an input unit (not shown) in the receiving server 2 of FIG. Further, the information corresponding to the item “permissible rate” is information for specifying the permissible rate (in FIG. 2, it is a percentage notation, “5”, “10”).

  Then, the process of generating and distributing the difference update information (hereinafter, the process of difference update information) is performed within the range of the processing capacity of the update information distribution system 100, and the process of the difference update information is map information The above-described allowable rate specifying information is determined so as to be performed according to the priority according to the update needs, and a user's predetermined operation is received via an input unit (not shown) in the receiving server 2 of FIG. The determined allowance rate identification information is recorded (the same applies to each embodiment and modification other than the first embodiment). The “differential update information” is information for updating map information, and specifically, is information generated in response to a distribution request from an on-vehicle device of the update information distribution system 100, for example, It is information including map information corresponding to the received distribution request. Further, “processing capacity of the update information distribution system 100” is the capacity of the update information distribution system 100, and specifically, is the capacity for generating and distributing the difference update information, for example, the difference described later. Maximum number of cases where the map calculation server 3 can properly process the difference update information at the same time (for example, simultaneously, or one hour etc.) without delay (hereinafter, the maximum number of processes), and the receiving server 2 and the update information distribution system 100 It is the capability corresponding to the communication capacity (hereinafter referred to as the processing maximum communication capacity) with the in-vehicle device. Also, "the need for updating map information" is the degree of necessity of updating map information, and can be determined arbitrarily, but in the present embodiment, for example, when the reference point is "home" It is possible to determine that the need is low compared to the case where the reference point is “home” from the viewpoint that the user is likely to be familiar with the information on the actual map. The "priority" is a degree of priority, specifically, a degree determined in accordance with "the need for updating map information". For example, as "the need for updating map information" is higher, It can be set high. Here, for example, the value corresponding to the item “permissible rate” in FIG. 2 becomes a larger value as the map information update needs (that is, the priority) are higher, and the difference update information is generated and distributed. It is not required to process differential update information of the number of cases exceeding the maximum number of processes, and communication of an amount exceeding the process maximum communication capacity between the reception server 2 and the on-vehicle device of the update information distribution system 100. In the following description, it is assumed that the user performs a simulation or the like so that he or she is not required to perform the recording, and then the information is recorded by the user inputting via the input unit (not shown) in the reception server 2 of FIG. .

(Configuration-Receiving server-Control unit)
Returning to FIG. 1, the control unit 27 includes a determination unit 271 and a distribution unit 272 in terms of functional concept. Each time the communication unit 21 receives a distribution request, the determination unit 271 is a determination unit that determines an allowable rate corresponding to a probability that distribution of difference update information is allowed based on an attribute of the received distribution request. . In addition, the distribution unit 272 is a distribution unit that distributes the difference update information based on the allowance rate determined by the determination unit 271. The processing performed by each unit of the control unit 27 will be described later.

(Configuration-Difference map calculation server)
Next, the configuration of the difference map calculation server 3 will be described. The difference map calculation server 3 is a generation unit that generates difference update information, and is an apparatus provided on the center side.

(Configuration-map information DB server)
Next, the configuration of the map information DB server 4 will be described. The map information DB server 4 is map information storage means for storing map information. Here, the "map information" stored in the map information DB server 4 is information used for guidance, and is included in the map information stored in the on-vehicle device of the update information distribution system 100. It is information including information corresponding to (for example, node data, link data, feature data, terrain data, etc.). Then, the map information DB server 4 has map information generated for each predetermined period (for example, one day, one week, etc.) based on the latest information (for example, information on the abolition or establishment of roads, etc.) of the map. , Provided and accumulated sequentially. That is, the map information DB server 4 also stores map information of each past version together with map information of the latest version for each area on the map. Here, for example, “versions 1 to 4” are provided for the “version” of the map information, “version 1” is the oldest, “version 2” is the oldest after “version 1”, and “version” In the following description, it is assumed that "3" is older than "Version 2" and "Version 4" is the latest.

(Configuration-File Server)
Next, the configuration of the file server 5 will be described. The file server 5 is a storage means for storing difference update information, and is a device provided on the center side.

(processing)
Next, the distribution process performed by the update information distribution system 100 configured as described above will be described. FIG. 3 is a flowchart of the distribution process (in the following description of each process, step is abbreviated as “S”). The “distribution process” is a process for distributing, and specifically, a process for distributing difference update information. Although the timing for executing this distribution process is arbitrary, for example, it is assumed that the process is started when the update information distribution system 100 is turned on. Here, for example, when the version of the map information of the in-vehicle device 1 of FIG. 1 is “version 2”, the in-vehicle device 1 is stored in its own device ID (that is, in the internal memory of the control unit 17). “ID1” and “version specific information” = “version 2”, “reference point” = “home”, “delivery place” = “34 degrees 56 minutes 40 seconds, 137 degrees 11 minutes 50 seconds” “Distribution request area location specification information” including “distribution area” = “area surrounded by a square of 10 kilometers centered on the distribution place” ”(hereinafter, the example distribution request) An example of generating and transmitting the generated distribution request will be described using as appropriate.

  First, as shown in FIG. 3, in SA1, the control unit 17 of the in-vehicle device 1 generates and transmits a distribution request. Specifically, transmission is performed via the communication unit 11. Here, for example, an exemplary delivery request is generated and transmitted.

  Next, in SA2, the control unit 27 of the reception server 2 receives the distribution request transmitted in SA1 via the communication unit 21, and activates the distribution determination process. FIG. 4 is a flowchart of the delivery determination process. This “delivery determination process” is a process for determining whether or not to distribute difference update information. As for a specific determination method, any method can be used as long as it is a method performed using an allowable rate, and the higher the allowable rate is, the easier it is to determine “what to deliver”. Here, for example, a description will be given below on the assumption that a method of determining by using the last two digits of the numerical value as the device ID described above together with the allowable rate is used.

  First, as illustrated in FIG. 4, the determination unit 271 in the control unit 27 of the reception server 2 determines an allowance rate at SB1. Specifically, the allowable rate is determined based on the attribute of the received distribution request and the allowable rate specifying information in FIG. More specifically, as an attribute of the received distribution request, the “reference point” in the “distribution request area location specification information” of the distribution request is acquired, and in the information corresponding to the item “permission ratio” of the permission ratio specification information The information corresponding to the acquired "reference point" is identified, and the identified information is determined as the tolerance rate. Here, for example, when an exemplary distribution request is received, “reference point” = “home” is acquired as an attribute of the received exemplary distribution request, and is permitted as information corresponding to the acquired “home”. The item “allowable rate” = “5” of the rate specifying information is specified, and the specified “5” is determined as the allowable rate.

  Next, at SB2, the distribution unit 272 in the control unit 27 of the reception server 2 determines a random number upper limit value. Here, the “random upper limit value” is the upper limit value of the comparison target random value. In addition, “comparison target random number value” is a calculated value (specifically, “comparison remainder value” to be described later) based on the value of the last two digits of the numerical value as the above-mentioned apparatus ID )) And a value consisting of a two-digit numerical value, and a numerical value of the first place and a numerical value of the tens place are values set by random numbers. Specifically, the random number upper limit value is determined so that the larger the allowable rate value, the smaller the random number upper limit value, based on the allowable rate determined in SB1. Here, for example, after performing the calculation of “100 ÷“ the allowable rate determined in SB1 ””, the integer value which is the result of rounding off the first decimal place of the calculation result is determined as the random number upper limit . If the integer value of the operation result is a numerical value of three or more digits because the value of “the allowable rate determined in SB1” is small, “99” is determined as the random number upper limit value. Also, if the integer value of the operation result is “0” because the value of “the tolerance rate determined in SB1” is large, “1” is a random number so that it can be used as a divisor in the division of SB5 described later. Determine the upper limit value. Here, for example, when the exemplary distribution request is received, the calculation of “1005“ 5 ”is performed to determine“ 20 ”as the random number upper limit value.

  Next, at SB3, the distribution unit 272 in the control unit 27 of the reception server 2 determines the comparison target random number value. Specifically, a comparison target random number value equal to or less than the random number upper limit value determined at SB2 is determined. More specifically, when the value generated by generating a random number in the 1-digit numerical value and the 10-digit numerical value is less than or equal to the random number upper limit value determined in SB2, the generated value is compared If the value generated by generating a random number in the 1st digit and the 10th digit is larger than the upper limit random number determined in SB2, a value lower than the upper limit random number is generated. Generate random numbers repeatedly until it is done. Here, for example, when an exemplary distribution request is received, a random number is generated and a value of “20” or less is determined as a comparison target random number value, but “comparison target random number value” = “5” is determined. This will be described below.

  Next, in SB4, the distribution unit 272 in the control unit 27 of the receiving server 2 acquires the last two digits of the device ID. Specifically, the lower two digits of the device ID are acquired from the distribution request received in SA2 of FIG. Here, for example, when the exemplary distribution request is received, “ID1” is acquired, but the following description will be given assuming that the lower two digits of “ID1” are the numerical value “85”.

  Next, at SB5, the distribution unit 272 in the control unit 27 of the reception server 2 calculates a comparison remainder value. Here, the “comparison residue value” is a remainder value to be compared with the comparison target random number value, and specifically, “the last two digits of the device ID” is a dividend and “random number upper limit value” is a divisor The remainder value of the division result. Specifically, division is performed with the “last two digits of the device ID” acquired in SB4 as the dividend and the “random upper limit value” determined in SB2 as the divisor, and the remainder in this division is calculated as the comparison remainder value. Here, for example, when an exemplary distribution request is received, the division of “85 ÷ 20” is performed, and “5”, which is the remainder of this division, is calculated as the comparison remainder value.

  Next, at SB6, the distribution unit 272 in the control unit 27 of the reception server 2 determines whether to distribute the difference update information. Specifically, the comparison target random number value determined in SB3 and the comparison residue value calculated in SB5 are compared to determine whether these values match each other. When the comparison target random value and the comparison remainder value match each other, it is determined that the difference update information is to be distributed, and permission information indicating permission for distribution is set in the control unit 27 in FIG. After being stored in the illustrated memory, the distribution determination process is returned and the process proceeds to SA3 in FIG. In addition, when the comparison target random number value and the comparison remainder value do not match (that is, when the comparison target random value and the comparison remainder value are different from each other), it is determined that the difference update information is not to be distributed After storing the restriction information indicating the restriction in the memory (not shown) of the control unit 27 in FIG. 1, the distribution determination processing is returned, and the process proceeds to SA3 in FIG. Here, for example, when an exemplary distribution request is received, “comparison target random number value =“ 5 ”is determined in SB3 as described above, and“ comparison remainder value ”=“ 5 ”is calculated in SB5. It is determined that the difference update information is to be distributed, and the “permission information” is stored in a memory (not shown) of the control unit 27 in FIG. 1, and then the distribution determination process is returned.

  Returning to FIG. 3, in SA3, the distribution unit 272 in the control unit 27 of the receiving server 2 determines whether or not the difference update information is distributed. Specifically, it is determined based on whether "permission information" is stored or "limit information" is stored in a memory (not shown) of the control unit 27 in FIG. If the permission information is stored, it is determined that the difference update information is to be distributed (YES in SA3 in FIG. 3), and the process proceeds to SA4. If the restriction information is stored, it is determined that the difference update information is not distributed (NO in SA3), and the process proceeds to SA16. Here, for example, when the illustrated distribution request is received, since the permission information is stored, it is determined that the difference update information is to be distributed, and the process proceeds to SA4.

  Next, at SA4, the distribution unit 272 of the control unit 27 of the receiving server 2 generates and transmits a differential update information creation request, which is a request to create differential update information. Specifically, the “device ID”, “version identification information”, “distribution location”, and “distribution area” are acquired from the distribution request received in SA2, and a difference update information creation request including these acquired information is acquired. And the generated difference update information creation request is transmitted to the difference map calculation server 3. Here, for example, when an exemplary distribution request is received, “device ID” = “ID1”, “version identification information” = “version 2”, “distribution location” = “34 degrees 56 minutes 40” from the exemplary distribution request. Second, 137 degrees 11 minutes and 50 seconds, and “distribution area” = “area surrounded by a 10-kilometer square centered on the distribution location”, and a differential update information creation request including these acquired information Generate and send

  Next, in SA5, the difference map calculation server 3 receives the difference update information creation request transmitted in SA4, and generates and transmits a difference map information search request that is a request for searching for difference map information. Here, the “difference map information” is information used to create difference update information, and specifically, update information distribution for the map information stored in the map information DB server 4 of FIG. This is information corresponding to the difference between the map information stored in the in-vehicle device of the system 100. Specifically, in SA5 of FIG. 3, “version specification information”, “distribution place”, and “distribution area” are acquired from the received difference update information creation request, and the difference map information search including the acquired information is acquired. A request is generated, and the generated difference map information search request is transmitted to the map information DB server 4. Here, for example, from the difference update information creation request, “version identification information” = “version 2”, “distribution place” = “34 degrees 56 minutes 40 seconds, 137 degrees 11 minutes 50 seconds”, and “distribution area” = “ An area surrounded by a 10-kilometer square centered on the distribution location is acquired, and a difference map information search request including the acquired information is generated and transmitted.

  Next, in SA6, the map information DB server 4 receives the difference map information search request transmitted in SA5, searches for difference map information, and transmits. Specifically, the map information corresponding to the difference in the map information of the version specified by the “version specifying information” of the received difference map information search request with respect to the map information stored in the map information DB server 4 of FIG. The map information corresponding to the area specified by the “distribution place” and the “distribution area” of the received differential map information search request is searched as “differential map information”, and the searched differential map information is differential map Send to calculation server 3 Here, for example, it is map information of “an area surrounded by a square of 10 kilometers centered on (34 degrees 56 minutes 40 seconds, 137 degrees 11 minutes 50 seconds)”, and “version 3 and version 4” The map information (hereinafter referred to as differential map information for the in-vehicle device 1) is retrieved and transmitted.

  Next, in SA7, the difference map calculation server 3 receives the difference map information transmitted in SA6 and stores the difference update information. Specifically, difference update information including the received difference map information is generated, and the generated difference update information is stored in the file server 5. Here, for example, difference update information including difference map information is generated and stored for the on-vehicle apparatus 1.

  Next, at SA8, the file server 5 transmits storage location identification information, which is information for identifying the storage location of the difference update information stored at SA7, to the difference map calculation server 3. Here, for example, storage location identification information (hereinafter, storage location identification information for the in-vehicle device 1) for identifying the storage location for the difference update information including the difference map information for the in-vehicle device 1 is transmitted.

  Next, in SA9, the difference map calculation server 3 receives the storage location specifying information transmitted in SA8 and transmits a storage location response. Here, the “storage location response” is a response regarding the storage location of the difference update information, and more specifically, is a response including storage location identification information and a device ID. Specifically for SA9, a storage location response including the received “storage location identification information” and the “device ID” included in the differential update information creation request received at SA5 is generated, and the generated storage location response is received Send to server 2 Here, for example, a storage location response including “storage location specifying information for the on-vehicle apparatus 1” and “ID1” (hereinafter, a storage location response for the on-vehicle apparatus 1) is generated and transmitted.

  Next, in SA10, the distribution unit 272 in the control unit 27 of the receiving server 2 receives the storage location response transmitted in SA9, and sends the received storage location response to the in-vehicle information of the update information distribution system 100 via the communication unit 21. Send to device. Here, for example, a storage location response for the on-vehicle apparatus 1 is transmitted.

  Next, in SA11, the control unit 17 of the in-vehicle device 1 acquires difference update information. Specifically, the storage location response transmitted at SA10 is received through the communication unit 11, and the storage location response including the own device ID among the received storage location responses is specified, and specified The storage location specifying information of the storage location response and its own device ID are transmitted to the receiving server 2 via the communication unit 11. Here, for example, “storage location specifying information for the on-vehicle apparatus 1” and “ID1” are transmitted.

  Next, at SA12, the distribution unit 272 in the control unit 27 of the reception server 2 acquires difference update information. Specifically, the storage location identification information and the device ID transmitted in SA11 are received through the communication unit 21, and a transmission request including the received storage location identification information is transmitted to the file server 5. Here, for example, a transmission request including storage location specifying information for the in-vehicle device 1 is transmitted.

  Next, at SA13, the file server 5 transmits difference update information. Specifically, the transmission request transmitted in SA12 is received, the storage location specifying information included in the received transmission request is specified, and the differential update information stored in the location specified by the specified storage location specifying information is The acquired differential update information is transmitted to the receiving server 2. Here, for example, the difference map information is acquired and transmitted for the in-vehicle device 1.

  Next, in SA14, the distribution unit 272 in the control unit 27 of the receiving server 2 transmits the difference update information. Specifically, the difference update information transmitted at SA13 is received, the received difference update information is associated with the device ID received at SA12, and the on-vehicle device of the update information distribution system 100 is communicated via the communication unit 21. To send. Here, for example, the differential map information and the “ID 1” are associated and transmitted for the on-vehicle apparatus 1.

  Next, after updating the map information, the control unit 17 of the in-vehicle apparatus 1 ends the distribution process at SA15. Specifically, the information transmitted in SA14 is received via the communication unit 11, and the difference update information corresponding to the information including the own device ID in the received information is acquired and acquired. The map information in the map information DB 161 of FIG. 1 is updated so that the updated difference information is reflected. Here, for example, the difference map information is acquired and updated for the in-vehicle device 1.

  Returning to FIG. 3, in the determination of SA3, when it is determined that the difference update information is not to be distributed (NO in SA3) and the process proceeds to SA16, the distribution unit 272 in the control unit 27 of the receiving server 2 in SA16 An access restriction response is transmitted via the communication unit 21 of FIG. Here, the “access restriction response” is a response notifying that distribution of difference update information is not performed. Specifically, in SA 16, the device ID is acquired from the distribution request received in SA 2, an access restriction response including the acquired device ID is generated, and the generated access restriction response is transmitted.

  Returning to FIG. 3, in SA17, the control unit 17 of the in-vehicle device 1 displays the access restriction information, and then ends the distribution process. Here, the "access restriction information" is information indicating that access restriction is restricted, and specifically, information indicating that distribution of difference update information is not performed, for example, text Information or image information. Specifically, for SA17, the access restriction response transmitted in SA16 is received via the communication unit 11, and the access restriction response including its own device ID is acquired from the received access restriction response. After the access restriction information is displayed on the display 13 of FIG. 1, the distribution process is ended. With this configuration, the determination unit 271 of the control unit 27 of the reception server 2 of FIG. 1 determines the permission rate at SB1 of FIG. 4 each time a distribution request is received. Difference update information can be appropriately distributed according to the update needs of each in-vehicle device.

(Effect of Embodiment 1)
As described above, according to the present embodiment, every time the communication unit 21 receives a distribution request, it corresponds to the probability that the distribution of difference update information is permitted based on the attribute of the distribution request received by the communication unit 21. By determining the allowance rate, for example, it is possible to reflect the individual circumstances of the on-vehicle device of the update information distribution system 100 in the allowance rate, and reduce the load for the update while the on-vehicle device of the update information distribution system 100 Differential update information can be appropriately distributed according to each update need.

  Further, from the determination of the allowance rate based on the distribution request area location specification information as the attribute of the distribution request, for example, the allowance rate corresponding to the necessity of the update is determined based on the place of the distribution request area. It is possible to reduce the load for updating and to distribute differential update information according to the update needs.

Second Embodiment
Next, a second embodiment will be described. In the second embodiment, a case will be described where the permission rate is determined using "home location specifying information" and "destination location specifying information". The configuration of the second embodiment is substantially the same as the configuration of the first embodiment except for the case where a special mention is made, and the configuration substantially the same as the configuration of the first embodiment is the same as that used in the first embodiment. The symbols of are attached as necessary, and the description thereof is omitted.

(Constitution)
First, update information distribution system 100B according to the present embodiment will be described. As shown in FIG. 1, this update information distribution system 100B includes an in-vehicle device 1B, a receiving server 2B, a difference map calculation server 3, a map information DB server 4, and a file server 5.

(Configuration-In-vehicle device)
First, the configuration of the in-vehicle apparatus 1B will be described. As shown in FIG. 1, the in-vehicle apparatus 1B generally includes a communication unit 11, a touch panel 12, a display 13, a speaker 14, a current position detection unit 15, a data recording unit 16, and a control unit 17B.

(Configuration-Receiving server)
Next, the configuration of the reception server 2B will be described. As shown in FIG. 1, the receiving server 2B schematically includes a communication unit 21, a data recording unit 26B, and a control unit 27B.

(Configuration-Receiving server-Data recording unit)
The data recording unit 26B includes an allowable rate specifying information DB 261B.

  The allowance rate identification information DB 261B is a storage unit that stores the allowance rate identification information. Here, the "permissible rate identification information" stored in the acceptable rate identification information DB 261B is information for identifying the acceptable rate. FIG. 5 is a diagram exemplifying tolerance rate identification information. As shown in FIG. 5, the allowance rate identification information is configured by mutually associating the item "distance (home-destination)" and the item "acceptance rate" with the information corresponding to each item. . Here, the information corresponding to the item “distance (home-destination)” is information for specifying the range of the distance between the home and the destination (in FIG. 5, the unit is kilometers, and “less than 10”). “10 or more and less than 40”, “40 or more and less than 80”, “80 or more and less than 160”, and “160 or more”). Here, the “distance between the home and the destination” is the distance between the location of the user's own home of the in-vehicle device 1B and the point where the own vehicle is to be moved. Then, “home” and “destination” are registered by receiving a predetermined operation of the user via the touch panel 12, for example, as described in the first embodiment. Further, the information corresponding to the item “allowable rate” is information for specifying the allowable rate (in FIG. 5, it is expressed as a percentage, “1”, “5”, “10”, “20”, “30”). ).

  And about such tolerance ratio specific information, for example, as the destination is closer to home, there is a high possibility that the user is familiar with the information on the actual map. ”Will be described below as being recorded in the same manner as in the first embodiment after being determined so as to decrease as the distance between the home and the destination decreases.

(Configuration-Receiving server-Control unit)
Returning to FIG. 1, the control unit 27B includes a determination unit 271B and a distribution unit 272 in terms of functional concept. The determination unit 271B is a determination unit that determines, based on the attribute of the received distribution request, every time the communication unit 21 receives the distribution request, the permission rate corresponding to the probability that the distribution of the difference update information is permitted. . The processing performed by each unit of the control unit 27B will be described later.

(processing)
Next, the distribution process performed by the update information distribution system 100B configured as described above will be described. The distribution process is the same as the corresponding step in the distribution process of the first embodiment except for SA1 of FIG. 3 and SB1 of FIG. 4, and here, it is different from the step of the distribution process of the first embodiment. Only the SA1 of FIG. 3 and the SB1 of FIG. 4 will be described (the same applies to third to sixth embodiments described later).

  First, at SA1 in FIG. 3, the control unit 17B of the in-vehicle apparatus 1B generates and transmits a distribution request. Specifically, transmission is performed via the communication unit 11. More specifically, first, the locations of “home” and “destination” registered by a predetermined operation of the user via the touch panel 12 are specified. Next, in addition to its own device ID, version identification information, and distribution request area location identification information, home location identification information for identifying the identified “home” location, and the identified “destination” location The distribution request including the destination location specifying information for specifying is generated, and the generated distribution request is transmitted.

  Next, in SA2, the distribution determination process of FIG. 4 is started, and in SB1, the determination unit 271B in the control unit 27B of the reception server 2B determines the allowable rate. Specifically, the allowable rate is determined based on the attribute of the received distribution request and the allowable rate specifying information in FIG. More specifically, “home location specifying information” and “destination location specifying information” of the distribution request are acquired as attributes of the received distribution request, and “home and destination and Calculate the distance between the two, and specify the information including the calculated distance between the home and the destination in the information corresponding to the item “distance (home-destination)” of the tolerance ratio specific information Then, the information corresponding to the item “allowable rate” corresponding to the specified information is determined as the allowable rate. Here, for example, when “distance between home and destination” = “2” (kilometers), “1” is determined as an acceptable rate, and, for example, “between home and destination” If "distance" = "100" (kilometers) is calculated, "20" will be determined as the allowable rate.

(Effect of Embodiment 2)
As described above, according to the present embodiment, since the allowable rate is determined based on the home location specifying information and the destination location specifying information as the attributes of the distribution request, for example, the home location and the destination location are determined. Based on this, it is possible to determine an allowable rate corresponding to the necessity of update, and it is possible to reduce the load for update and distribute differential update information according to update needs.

Third Embodiment
Next, Embodiment 3 will be described. In the third embodiment, a case will be described where the permission rate is determined using "home location specifying information" and "distribution request area location specifying information". The configuration of the third embodiment is substantially the same as the configuration of the first embodiment except for the case where a special mention is made, and the configuration substantially the same as the configuration of the first embodiment is the same as that used in the first embodiment. These symbols are attached as necessary, and the description thereof is omitted.

(Constitution)
First, update information distribution system 100C according to the present embodiment will be described. As shown in FIG. 1, the update information distribution system 100C includes an in-vehicle device 1C, a receiving server 2C, a difference map calculation server 3, a map information DB server 4, and a file server 5.

(Configuration-In-vehicle device)
First, the configuration of the in-vehicle apparatus 1C will be described. As shown in FIG. 1, the in-vehicle apparatus 1C roughly includes a communication unit 11, a touch panel 12, a display 13, a speaker 14, a current position detection unit 15, a data recording unit 16, and a control unit 17C.

(Configuration-Receiving server)
Next, the configuration of the reception server 2C will be described. As shown in FIG. 1, the receiving server 2C schematically includes a communication unit 21, a data recording unit 26C, and a control unit 27C.

(Configuration-Receiving server-Data recording unit)
The data recording unit 26C includes an allowable rate specifying information DB 261C.

  The allowance rate identification information DB 261C is a storage unit that stores the allowance rate identification information. Here, the “permissible rate identification information” stored in the acceptable rate identification information DB 261C is information for identifying the acceptable rate. FIG. 6 is a diagram exemplifying the tolerance rate identification information. As shown in FIG. 6, the allowance rate identification information is configured by mutually associating the item "distance (home-delivery location)" and the item "acceptance rate" with the information corresponding to each item. . Here, the information corresponding to the item “distance (home-delivery location)” is information for specifying the range of the distance between the home and the delivery location (in FIG. 6, the unit is kilometers, and “less than 10”). “10 or more and less than 40”, “40 or more and less than 80”, “80 or more and less than 160”, and “160 or more”). Note that “home” and “delivery location” are registered by receiving a predetermined operation of the user via the touch panel 12, for example, as described in the first embodiment. Further, the information corresponding to the item “allowable rate” is information for specifying the allowable rate (in FIG. 6, it is expressed as a percentage, “1”, “1”, “10”, “20”, “30”). ).

  And about such tolerance ratio specific information, for example, from the viewpoint that the user is more likely to know the information on the actual map as the distribution place becomes closer to the home, "the update of the map information In the following description, it is assumed that the needs are recorded in the same manner as in the first embodiment after being determined so as to be lower as the distance between the home and the delivery location becomes shorter.

(Configuration-Receiving server-Control unit)
Returning to FIG. 1, the control unit 27C functionally includes a determination unit 271C and a distribution unit 272. The determination unit 271C is a determination unit that determines, based on the attribute of the received distribution request, every time the communication unit 21 receives the distribution request, the permission ratio corresponding to the probability that distribution of the difference update information is permitted. . The processing performed by each unit of the control unit 27C will be described later.

(processing)
Next, the distribution process performed by the update information distribution system 100C configured as described above will be described.

  First, at SA1 in FIG. 3, the control unit 17C of the in-vehicle apparatus 1C generates and transmits a distribution request. Specifically, transmission is performed via the communication unit 11. More specifically, first, a “home” location and a “delivery location” registered by a predetermined operation of the user via the touch panel 12 are specified. Next, in addition to its own device ID and version specifying information, home location specifying information for specifying the specified “home” location, and delivery request area location specifying information including the specified “delivery location” Generate a distribution request including, and send the generated distribution request.

  Next, the distribution determination process of FIG. 4 is activated in SA2, and the determination unit 271C in the control unit 27C of the reception server 2C determines an allowance rate in SB1. Specifically, the allowable rate is determined based on the attribute of the received distribution request and the allowable rate specifying information in FIG. More specifically, “home location specifying information” and “delivery request area location specifying information” of the distribution request are acquired as attributes of the received distribution request, and “home and distribution location” are acquired based on the acquired information. In the information corresponding to the item "distance (home-delivery place)" of tolerance ratio specific information, the information including "the distance between home and delivery place" calculated above is calculated. It identifies and determines the information corresponding to the item "tolerance rate" corresponding to the specified information as the tolerance rate.

(Effect of Embodiment 3)
As described above, according to the present embodiment, since the allowance rate is determined based on the distribution request area location specification information and the home location specification information as the attributes of the distribution request, for example, the location of the distribution request area and the home Based on the location, it is possible to determine the allowable rate corresponding to the necessity of the update, to reduce the load for the update, and to distribute the differential update information in accordance with the update needs.

Embodiment 4
Next, a fourth embodiment will be described. In the fourth embodiment, a case will be described where the tolerance rate is determined using "destination location specification information" and "distribution request area location specification information". The configuration of the fourth embodiment is substantially the same as the configuration of the first embodiment except for the case where a special mention is made, and the configuration substantially the same as the configuration of the first embodiment is the same as that used in the first embodiment. These symbols are attached as necessary, and the description thereof is omitted.

(Constitution)
First, update information distribution system 100D according to the present embodiment will be described. As shown in FIG. 1, the update information distribution system 100D includes an in-vehicle device 1D, a receiving server 2D, a difference map calculation server 3, a map information DB server 4, and a file server 5.

(Configuration-in-vehicle device)
First, the configuration of the in-vehicle apparatus 1D will be described. As shown in FIG. 1, the on-vehicle apparatus 1D generally includes a communication unit 11, a touch panel 12, a display 13, a speaker 14, a current position detection unit 15, a data recording unit 16, and a control unit 17D.

(Configuration-Receiving server)
Next, the configuration of the receiving server 2D will be described. As shown in FIG. 1, the reception server 2D schematically includes a communication unit 21, a data recording unit 26D, and a control unit 27D.

(Configuration-Receiving server-Data recording unit)
The data recording unit 26D includes an allowance rate identification information DB 261D.

  The allowance rate identification information DB 261D is a storage unit that stores the allowance rate identification information. Here, the “permissible rate identification information” stored in the acceptable rate identification information DB 261D is information for identifying the acceptable rate. FIG. 7 is a diagram exemplifying the allowance rate identification information. As shown in FIG. 7, the allowance rate identification information is configured by mutually associating the item "distance (destination-delivery location)" and the item "acceptance rate" with the information corresponding to each item. Yes. Here, the information corresponding to the item “distance (destination-delivery location)” is information specifying the range of the distance between the destination and the delivery location (in FIG. 7, the unit is kilometers, 10 or less, 10 or more and less than 40, 40 or more and less than 80, 80 or more and less than 160, and 160 or more). Note that “destination” and “delivery location” are registered when a predetermined operation of the user is accepted via the touch panel 12, for example, as described in the first embodiment. Further, the information corresponding to the item “allowable rate” is information for specifying the allowable rate (in FIG. 7, it is expressed as a percentage, “1”, “5”, “10”, “20”, “30”). ).

  And about such allowance rate specific information, for example, from the viewpoint that the closer the distribution location is to the destination, the more likely the user is familiar with the information on the actual map, Will be described below as being recorded in the same manner as in the case of the first embodiment, after it is determined that the needs for “the lower the distance between the destination and the delivery location, the lower the needs”.

(Configuration-Receiving server-Control unit)
Returning to FIG. 1, the control unit 27D functionally includes a determination unit 271D and a distribution unit 272. The determination unit 271D is a determination unit that determines, based on the attribute of the received distribution request, every time the communication unit 21 receives the distribution request, the permission rate corresponding to the probability that the distribution of the difference update information is permitted. . The processing performed by each unit of the control unit 27D will be described later.

(processing)
Next, the distribution process performed by the update information distribution system 100D configured as described above will be described.

  First, at SA1 in FIG. 3, the control unit 17D of the in-vehicle apparatus 1D generates and transmits a distribution request. Specifically, transmission is performed via the communication unit 11. More specifically, first, the “destination” location and “delivery location” registered by the user's predetermined operation via the touch panel 12 are specified. Next, in addition to the own device ID and the version identification information, the delivery request area location identification including the destination location identification information for identifying the above-mentioned identified “destination” location, and the above-mentioned identified “delivery location” Generate a distribution request including information and send the generated distribution request.

  Next, in SA2, the distribution determination process of FIG. 4 is started, and in SB1, the determination unit 271D in the control unit 27D of the reception server 2D determines the allowable rate. Specifically, the allowable rate is determined based on the attribute of the received distribution request and the allowable rate specifying information in FIG. More specifically, “destination location specification information” and “distribution request area location specification information” of the distribution request are acquired as attributes of the received distribution request, and “destination and information” are acquired based on the acquired information. In the information corresponding to the item "distance (destination-delivery place)" of the tolerance ratio specific information, the distance between the delivery place and the delivery place is calculated as "the distance between the destination and the delivery place" And the information corresponding to the item “permissible rate” corresponding to the specified information is determined as the permissible rate.

(Effect of Embodiment 4)
As described above, according to the present embodiment, since the allowable rate is determined based on the distribution request area location specifying information and the destination location specifying information as the attributes of the distribution request, for example, the location and the purpose of the distribution request area Based on the location of the ground, the allowable rate corresponding to the necessity of the update can be determined, the load for the update can be reduced, and the difference update information can be distributed according to the update needs.

Fifth Embodiment
Next, a fifth embodiment will be described. In the fifth embodiment, a case will be described where the permission rate is determined using the "mid-point place specifying information" and the "delivery required area place specifying information". The configuration of the fifth embodiment is substantially the same as the configuration of the first embodiment except for the case where a special mention is made, and the configuration substantially the same as the configuration of the first embodiment is the same as that used in the first embodiment. The symbols of are attached as necessary, and the description thereof is omitted.

(Constitution)
First, the update information distribution system 100E according to the present embodiment will be described. As shown in FIG. 1, the update information distribution system 100E includes an in-vehicle device 1E, a reception server 2E, a difference map calculation server 3, a map information DB server 4, and a file server 5.

(Configuration-In-vehicle device)
First, the configuration of the in-vehicle apparatus 1E will be described. As shown in FIG. 1, the on-vehicle apparatus 1E roughly includes a communication unit 11, a touch panel 12, a display 13, a speaker 14, a current position detection unit 15, a data recording unit 16, and a control unit 17E.

(Configuration-Receiving server)
Next, the configuration of the reception server 2E will be described. As shown in FIG. 1, the receiving server 2E roughly includes a communication unit 21, a data recording unit 26E, and a control unit 27E.

(Configuration-Receiving server-Data recording unit)
The data recording unit 26E includes an allowable rate specifying information DB 261E.

  The allowance rate identification information DB 261E is a storage unit that stores the allowance rate identification information. Here, the “permissible rate identification information” stored in the acceptable rate identification information DB 261E is information for identifying the acceptable rate. FIG. 8 is a diagram exemplifying tolerance rate identification information. As shown in FIG. 8, the allowance rate identification information is configured by mutually associating the item “distance (midpoint-delivery location)”, the item “acceptance rate”, and the information corresponding to each item. Yes. Here, the information corresponding to the item “distance (middle point−delivery location)” is information specifying the range of the distance between the midpoint and the delivery location (in FIG. 8, the unit is kilometers, 10 or less, 10 or more and less than 40, 40 or more and less than 80, 80 or more and less than 160, and 160 or more). Here, the “intermediate point” is an intermediate point, and is a point between the “departure point” and the “destination”, and can be arbitrarily defined. ”Will be defined below as points set at predetermined distances (for example, every 5 kilometers) on the travel route from“ to ”the“ destination ”. The “departure point” is a point at which the vehicle starts to move, and is set, for example, by receiving a predetermined operation of the user via the touch panel 12, or detected by the current position detection unit 15 of FIG. The current position is set. Further, the “travel route” is a route on which the host vehicle is to travel, for example, a route generated and set by the control unit 17E.

  For such tolerance rate specifying information, for example, as the delivery location is closer to the midpoint (that is, the distance between the midpoint and the delivery location is shorter), the area to be updated passes by the user. From the viewpoint of being highly likely to correspond to the area to be used, the "need for updating map information" should be set higher as the distance between the midpoint and the delivery location becomes shorter, and The following description will be made assuming that the information is recorded in the same manner as in the case of the first embodiment.

(Configuration-Receiving server-Control unit)
Returning to FIG. 1, the control unit 27E includes a determination unit 271E and a distribution unit 272 in terms of functional concept. The determination unit 271E is a determination unit that determines, based on the attribute of the received distribution request, every time the communication unit 21 receives the distribution request, the permission rate corresponding to the probability that the distribution of the difference update information is permitted. . The processing performed by each unit of the control unit 27E will be described later.

(processing)
Next, the distribution process performed by the update information distribution system 100E configured as described above will be described.

  First, at SA1 in FIG. 3, the control unit 17E of the in-vehicle apparatus 1E generates and transmits a distribution request. Specifically, transmission is performed via the communication unit 11. More specifically, first, a travel route from "starting place" to "destination" set by the user's predetermined operation through the touch panel 12 is generated, and the location of the midpoint on the generated traveling route Identify (eg, longitude and latitude coordinates). Next, the “distribution location” registered by the user's predetermined operation via the touch panel 12 is specified. Next, in addition to the own device ID, version specification information, distribution request area location specification including midpoint location specification information for identifying the location of the above-mentioned identified “midpoint”, and the above-mentioned identified “delivery location” Generate a distribution request including information and send the generated distribution request.

  Next, in SA2, the distribution determination process of FIG. 4 is started, and in SB1, the determination unit 271E in the control unit 27E of the reception server 2E determines the allowable rate. Specifically, the allowable rate is determined based on the attribute of the received distribution request and the allowable rate specifying information in FIG. More specifically, “midway place specification information” and “distribution request area place specification information” of the distribution request are acquired as the attributes of the received distribution request, and “midpoint” is determined based on the acquired information. In the information corresponding to the item "distance (midpoint-delivery location)" of the tolerance ratio specific information, the distance between the delivery location and the above calculated "distance between the midpoint and the delivery location" And the information corresponding to the item “permissible rate” corresponding to the specified information is determined as the permissible rate.

(Effect of Embodiment 5)
As described above, according to the present embodiment, since the allowable rate is determined based on the distribution request area location specifying information and the midpoint location specifying information as the attributes of the distribution request, for example, the location and the middle of the distribution request area Based on the location of the points, the allowable rate corresponding to the necessity of the update can be determined, the load for updating can be reduced, and the difference update information can be distributed according to the update needs.

Sixth Embodiment
Next, a sixth embodiment will be described. In the sixth embodiment, the case where the allowable rate is determined using “distribution request area location specifying information”, “day of the week specifying information”, and “time specifying information” will be described. The configuration of the sixth embodiment is substantially the same as the configuration of the first embodiment except for the case where a special mention is made, and the configuration substantially the same as the configuration of the first embodiment is the same as that used in the first embodiment. These symbols are attached as necessary, and the description thereof is omitted.

(Constitution)
First, the update information distribution system 100F according to the present embodiment will be described. As illustrated in FIG. 1, the update information distribution system 100F includes an in-vehicle device 1F, a reception server 2F, a difference map calculation server 3, a map information DB server 4, and a file server 5.

(Configuration-In-vehicle device)
First, the configuration of the in-vehicle apparatus 1F will be described. As shown in FIG. 1, the in-vehicle apparatus 1F roughly includes a communication unit 11, a touch panel 12, a display 13, a speaker 14, a current position detection unit 15, a data recording unit 16, and a control unit 17F.

(Configuration-Receiving server)
Next, the configuration of the reception server 2F will be described. As shown in FIG. 1, the reception server 2F schematically includes a communication unit 21, a data recording unit 26F, and a control unit 27F.

(Configuration-Receiving server-Data recording unit)
The data recording unit 26F includes an allowance rate identification information DB 261F.

  The allowance rate identification information DB 261F is a storage unit that stores the allowance rate identification information. Here, the “permissible rate identification information” stored in the acceptable rate identification information DB 261F is information for identifying the acceptable rate. FIG. 9 is a diagram exemplifying the allowance rate identification information. As shown in FIG. 9, the allowable rate specifying information is configured by associating an item “distribution area”, an item “allowable rate”, and information corresponding to each item. Here, the information corresponding to the item “distribution area” is information for identifying the place of the mark included in the distribution area (in FIG. 9, “home”, “destination”, “company”, “regularity”). Where to go "). Note that "company" is a company where the user of the in-vehicle apparatus 1F commutes, and, for example, registration is performed by receiving a predetermined operation of the user via the touch panel 12 in the same manner as "home" and "destination". Is done. Moreover, "the place to go regularly" is a place where the user of the on-vehicle apparatus 1F goes regularly, and can be defined using any method, but here, for example, "destination" in the past The following description will be made on the basis of the results registered as relating to the day of the week and the time zone. Specifically, for the definition of “place to go regularly”, a point set as “destination” in a predetermined period in the past (for example, one year etc.), for each day of the week and time zone (for example, "," Sunday afternoon ", etc.) for the points set as the destination on each day and time zone acquired, tabulate the frequency set as the destination, and the tabulated frequency is a predetermined number of times (for example, The above points are defined as “places to go regularly” in each day of the week and time zone. In other words, for example, if you count "30" times as "Saturday morning" to "Fitness Gym" and "10 times" as "Go to department store", then "Saturday morning" It shall be defined as "where to go regularly" = "fitness gym". Further, the information corresponding to the item “allowable rate” is information for specifying the allowable rate (in FIG. 9, percentage notation is “10”, “30”, “5”).

  For such allowable rate specifying information, for example, for “home”, there is a high possibility that the user is familiar with the information on the actual map, and “where to go regularly” and “company” Is more likely to be familiar with the information on the actual map, but with respect to the “destination”, it is likely that the user is not familiar with the information on the actual map. From "the need for updating map information" to "destination", "home", "company" (and "place to go regularly" (Note that "place" is the same as "place to go regularly") In the following description, it is assumed that the information is recorded in the same manner as in the first embodiment after it is determined to become lower in the order of.

(Configuration-Receiving server-Control unit)
Returning to FIG. 1, the control unit 27F functionally includes a determination unit 271F and a distribution unit 272. The determination unit 271F is a determination unit that determines, based on the attribute of the received distribution request, every time the communication unit 21 receives the distribution request, the permission ratio corresponding to the probability that the distribution of the difference update information is permitted. . The processing performed by each unit of the control unit 27F will be described later.

(processing)
Next, the distribution process performed by the update information distribution system 100F configured as described above will be described.

  First, at SA1 in FIG. 3, the control unit 17F of the in-vehicle apparatus 1F generates and transmits a distribution request. Specifically, it is information indicating a point of a mark included in the distribution area (hereinafter, a mark point) and indicating the point, and including “mark point information” corresponding to the feature or the property of the distribution request The request is transmitted via the communication unit 11. More specifically, first, the current day of the week and the time zone (that is, the delivery request is performed using a timer such as a timer (having a function to specify time and day) (not shown) of in-vehicle device 1F. The "delivery area" registered by the user's predetermined operation via the touch panel 12 specifies the day of the week and the time to be performed, and whether "the place to regularly go" of the specified day and time zone is included or not If it is determined that the “place to regularly go” is included, “mark point” = “place to go regularly” is identified (that is, based on the day identification information and the time identification information). If it is determined that “the place to go regularly” is not included, “company”, “home” or “destination” in the “delivery area” Judge whether or not is included, "mark point" To identify. In addition, when two or more "company", "home" or "destination" are specified as "mark point", priority is set to "company", "home" and "destination", and the set priority According to the degree, only one point is specified as a “marking point”. Further, when none of "company", "home" and "destination" is identified as "mark point", "mark point" = "none" is specified. Next, in addition to the own device ID, version specifying information, and distribution request area place specifying information, a distribution request including mark point information where “mark point information” = “specified mark point mentioned above” is generated and generated Send the delivery request that you

  Next, in SA2, the distribution determination process of FIG. 4 is started, and in SB1, the determination unit 271F in the control unit 27F of the reception server 2F determines the allowable rate. Specifically, the allowable rate is determined based on the attribute of the received distribution request and the allowable rate specifying information in FIG. More specifically, the “mark point information” of the distribution request is acquired as the attribute of the received distribution request, and the “mark point” acquired in the information corresponding to the item “permission rate” of the allowance rate identification information Information corresponding to “information” is identified, and the identified information is determined as an acceptable rate. Here, for example, when “mark point information” = “home” is acquired, “10” is determined as the allowable rate, and “mark point information” = “destination” is acquired, “30” is allowable rate If you decide "marking point information" = "company", decide "5" as an acceptable rate, and if "marking point information" = "place to go on a regular basis", "5" Determine the tolerance rate. In addition, when "mark point location information" = "none" is acquired, you may determine the predetermined | prescribed tolerance | permissible rate (for example, "1" etc. which are very small values etc.).

(Effect of Embodiment 6)
As described above, according to the present embodiment, since the allowable rate is determined based on the distribution request area location specifying information, the day of the week specifying information, and the time specifying information as attributes of the distribution request, for example, the distribution request area Based on the location, the day of the week when the distribution request area was performed, and the time, the allowable rate corresponding to the necessity of the update can be determined, the load for the update is reduced, and the differential update information according to the update needs It can be delivered.

[Modifications to Embodiment]
Although the embodiments of the present invention have been described above, specific configurations and means of the present invention are arbitrarily modified and improved within the scope of the technical idea of the present invention described in the claims. be able to. Hereinafter, such a modified example will be described.

(About problem to be solved and effect of invention)
First of all, the problems to be solved by the invention and the effects of the invention are not limited to the above contents, and may differ depending on the details of the implementation environment and configuration of the invention, and only some of the problems described above And may only play a part of the above mentioned effects. For example, even if the appropriateness of the distribution according to the update needs performed using the update information distribution system according to the present invention is similar to the conventional one, the same appropriate distribution as the conventional one is performed by the structure different from the conventional one. In that case, the problem of the present invention is solved.

(About distribution and integration)
In addition, each of the above-described electrical components is functionally conceptual, and does not necessarily have to be physically configured as illustrated. In other words, the specific forms of distribution and integration of each unit are not limited to those shown in the drawings, and all or a part thereof may be functionally or physically distributed or integrated in arbitrary units according to various loads or usage conditions. Can be configured. The “system” in the present application is not limited to one configured by a plurality of devices, but includes one configured by a single device. In addition, the “device” in the present application is not limited to one configured by a single device, but includes one configured by a plurality of devices. For example, part of the functions of the in-vehicle apparatus may be provided in the reception server, or part of the functions of the reception server may be provided in the in-vehicle apparatus. In addition, the receiving server is configured to be distributed among a plurality of devices configured to be able to communicate with each other, and one of the determination unit or the distribution unit is provided in a part of the plurality of devices, and the other of the plurality of devices The other of the determination unit or the delivery unit may be provided in part. For example, the functions of the receiving server, difference map calculation server, map information DB server, or file server of each embodiment may be integrated.

(About shape, number, structure, time series)
With regard to the components illustrated in each embodiment and the drawings, the shape, the numerical value, or the interrelationship of the structure or the time series of a plurality of components is arbitrarily modified and improved within the technical concept of the present invention. be able to.

(About tolerance rate specific information)
Further, in each of the above embodiments, the allowance rate specifying information of the allowance rate specifying information DB of each embodiment is recorded when the user inputs it via an input unit (not shown) in the receiving server 2 of FIG. Although the case has been described, it is not limited thereto. For example, in the range of processing capability of the update information distribution system, the receiving server determines the “allowance rate” of the allowance specification information at predetermined time intervals (for example, every 24 hours) according to the priority according to the update needs of the map information. The tolerance ratio identification information may be updated based on the computation result.

(About determination of tolerance rate)
In the second embodiment, the case where the allowable rate is determined using “home location specifying information” and “destination location specifying information” is described, but the present invention is not limited to this. For example, the allowable rate may be determined using “current location specifying information” instead of “home location specifying information”. In this case, the item "distance (current location-destination)" is provided instead of the item "distance (home-destination)" in the tolerance ratio identification information of FIG. 5, and this item "distance (current location-destination)" Information that specifies the range of the distance between the current location of the on-vehicle apparatus 1 and the destination is recorded as the information corresponding to “1”. Then, in SA1 of FIG. 3, the control unit 17B of the in-vehicle apparatus 1B of FIG. 1 acquires the detection result (for example, coordinates of longitude and latitude) of the current position detection unit 15, and identifies the current position which is the acquired detection result. The distribution request including the “current location specific information” to be generated instead of the “destination location specific information” in the second embodiment is generated and transmitted, and the control unit 27B of the receiving server 2B in SB1 of FIG. Based on the “permissible location determination information” including the “current location specific information” included in the received distribution request and the determination item 271 B in the above, the information corresponding to the above-mentioned item “distance (current location-destination)” Configure to determine

  In addition, after combining the tolerance ratio identification information in each of the above-described embodiments and modifications, the tolerance ratio is determined by arbitrarily combining the methods for determining the tolerance in each of the embodiments and modifications. You can do it. Specifically, the allowable rate is determined based on at least one of the distribution request area location specifying information, home location specifying information, current location specifying information, destination location specifying information, or midpoint location specifying information. Alternatively, the allowable rate may be determined based on the at least one information and the day-of-week specifying information or the time specifying information. In the case of “determining the tolerance rate based on the at least one information and the day identification information or the time identification information”, for example, the receiving server determines the acceptance rate of the tolerance rate identification information of each embodiment and modification. The permissible rate may be determined in consideration of the day of the week or time when the distribution request is received after recording the distribution request every day or time.

  In each of the above embodiments, the allowance rate identification information stored in the reception server may be configured to be individually used for each of a plurality of in-vehicle devices of the update information distribution system, or a plurality of in-vehicle devices may be used. You may comprise so that it may be used in common regarding a vehicle-mounted apparatus.

(About the middle point)
Further, in the fifth embodiment, the intermediate point is defined as a point set at every predetermined distance (for example, every five kilometers) on the traveling route from the "starting place" to the "destination". Although the case where it processed above was demonstrated, it is not restricted to this. For example, from the viewpoint of reducing the load for identifying the middle point, the middle point is simply connected by a straight line or a curve between the “starting place” and the “destination” regardless of the travel route, and the connected straight line Alternatively, it may be processed after being defined as a point at a predetermined distance on a curve. Also, it may be replaced with "place of departure" and "home" for definition.

(About mark point information)
Moreover, although the said Embodiment 6 demonstrated the case where the in-vehicle apparatus 1F transmits to the receiving server 2F as some information of a delivery request | requirement information, it is not restricted to this. For example, the receiving server 2F may store information necessary to determine the landmark point information, and the receiving server 2F may determine the landmark point information.

(About the delivery judgment process)
Further, instead of SB2 to SB6 in the distribution determination process of FIG. 4 in each of the above embodiments, it is known that “the one to distribute difference update information” is determined with the probability corresponding to the tolerance rate determined at SB1. Any determination method including the determination method of may be used.

[Part of the features and effects of the embodiment]
Lastly, some of the features and effects of the embodiments described above are exemplified below. However, the features and effects of the respective embodiments are not limited to the following contents, and only a part of the following effects can be achieved by providing only a part of the following features, and others other than the following features In addition to the following effects, other effects may be exhibited by providing the feature of.

  The update information distribution system according to one aspect 1 of the embodiment distributes update information for updating the map information in response to a distribution request from a map display terminal having map information for displaying a map. In an update information distribution system, a receiving unit for receiving the distribution request, and each time the receiving unit receives the distribution request, distribution of the update information is permitted based on an attribute of the received distribution request. A determining unit that determines an allowable rate corresponding to the probability of the update, and a distribution unit that distributes the update information based on the allowable rate determined by the determining unit.

  According to the update information distribution system of aspect 1, when the reception means receives the distribution request, the allowance corresponding to the probability that the distribution of the update information is permitted based on the attribute of the distribution request received by the reception means Since the rate is determined, for example, individual circumstances in each map display terminal can be reflected in the allowable rate, and updated appropriately according to the update needs of each map display terminal while reducing the load for updating Information can be distributed.

  In the update information distribution system according to another aspect 2 of the embodiment, in the update information distribution system according to the aspect 1, the attribute of the distribution request is a position of a distribution request area which is an area for requesting distribution in the map information. Distribution request area specifying information for specifying, home location specifying information for specifying the user's home location on the map display terminal, current location specifying information for specifying the location of the current location of the map display terminal, purpose of the map display terminal At least one specific information of destination place specifying information for specifying a place of a place or middle point place specifying information for specifying a place at a midpoint between the place of the home and the place of the destination, The determination means determines the allowable rate based on the at least one specific information.

  According to the update information distribution system of aspect 2, the distribution request area for specifying the place of the distribution request area which is the area for requesting distribution in the map information, and the place specification information of the area, and the place of the user's home in the map display terminal Home location identification information, current location identification information that identifies the location of the current location of the map display terminal, destination location identification information that identifies the location of the destination of the map display terminal, or the location of the midpoint between the home location and the destination For example, the location of the distribution request area, the location of the user's home at the map display terminal, the map display terminal, and the like. Based on the location of the current location, the location of the destination or the location of the middle point, the tolerance rate corresponding to the need for updating can be determined, and the load for updating Reduction, and it is possible to carry out the delivery of update information in line with the update needs.

  In the update information distribution system according to another aspect 3 of the embodiment, in the update information distribution system according to the aspect 2, the attribute of the distribution request is day-of-week specifying information for specifying a day of the week on which the distribution request is performed, or , Further including at least one specification information of time specification information for specifying a time at which the delivery request is made, wherein the determining means is further configured based on the day of the week specification information or the time specification information. Determine the rate.

  According to the update information distribution system according to aspect 3 described above, the allowable rate is determined based on the day-of-week specifying information for specifying the day of the week when the distribution request is made or the time specifying information for specifying the time of the distribution request. Therefore, for example, it is possible to determine the allowable rate according to the user's behavior pattern of the map display terminal based on the day of the week or time, and appropriately update information according to the update needs in consideration of the user's behavior pattern Can be delivered.

  An update information distribution method according to another aspect 4 of the embodiment distributes update information for updating the map information in response to a distribution request from a map display terminal having map information for displaying a map. A method of updating information distribution, wherein the receiving means receives the distribution request, and the determining means receives the distribution request every time the receiving means receives the distribution request, based on the attribute of the received distribution request. The method comprises the steps of: determining an allowance rate corresponding to the probability that the distribution of the update information is permitted; and distributing the distribution information based on the allowance rate determined by the determination step. .

  According to the update information distribution method of the above aspect 4, each time the reception means receives the distribution request, the allowance corresponding to the probability that the distribution of the update information is permitted based on the attribute of the distribution request received by the reception means Since the rate is determined, for example, individual circumstances in each map display terminal can be reflected in the allowable rate, and updated appropriately according to the update needs of each map display terminal while reducing the load for updating Information can be distributed.

  An update information distribution program according to another aspect 5 of the embodiment distributes update information for updating the map information in response to a distribution request from a map display terminal having map information for displaying a map. An update information distribution program, comprising: a computer; receiving means for receiving the distribution request; and each time the receiving means receives the distribution request, distribution of the update information based on the attribute of the received distribution request Function as a determination means for determining an allowance rate corresponding to the probability of being allowed, and a distribution means for distributing the update information based on the allowance rate determined by the determination means.

  According to the update information distribution program related to the above aspect 5, each time the reception means receives the distribution request, the allowance corresponding to the probability that the distribution of the update information is permitted based on the attribute of the distribution request received by the reception means Since the rate is determined, for example, individual circumstances in each map display terminal can be reflected in the allowable rate, and updated appropriately according to the update needs of each map display terminal while reducing the load for updating Information can be distributed.

DESCRIPTION OF SYMBOLS 1 In-vehicle apparatus 1B In-vehicle apparatus 1C In-vehicle apparatus 1D In-vehicle apparatus 1E In-vehicle apparatus 1F In-vehicle apparatus 2 Reception server 2B Reception server 2C Reception server 2D Reception server 2E Reception server 2F Reception server 3 Difference map calculation server 4 Map information DB server 5 File server 11 Communication unit 12 Touch panel 13 Display 14 Speaker 15 Current position detection unit 16 Data recording unit 17 Control unit 17B Control unit 17C Control unit 17D Control unit 17E Control unit 17F Control unit 21 Communication unit 26 Data recording unit 26B Data recording unit 26C Data recording unit 26D data recording unit 26E data recording unit 26F data recording unit 27 control unit 27B control unit 27C control unit 27C control unit 27E control unit 27E control unit 27F control unit 100 update information distribution system 100B update information distribution system 100C update information distribution system 10 0D update information distribution system 100E update information distribution system 100F update information distribution system 161 map information DB
261 Permissible Rate Identification Information DB
261B Permissible rate identification information DB
261C Permissible rate identification information DB
261D Permissible rate identification information DB
261E Permissible rate identification information DB
261F Allowable rate identification information DB
271 determination unit 271B determination unit 271C determination unit 271D determination unit 271E determination unit 271F determination unit 272 distribution unit

Claims (4)

An update information distribution system for distributing update information for updating the map information in response to a distribution request from a map display terminal having map information for displaying a map,
Receiving means for receiving the distribution request;
A determination unit that determines a permissible rate corresponding to a probability that distribution of the update information is permitted based on an attribute of the received distribution request every time the receiving unit receives the distribution request;
Distribution means for distributing the update information based on the allowance rate determined by the determination means;
The allowance rate is an indicator of whether or not the distribution of the update information is permitted,
The attributes of the distribution request are distribution request area place specification information specifying the place of the distribution request area which is an area for requesting distribution in the map information, home place specification information specifying the place of the user's home at the map display terminal The present location specification information for identifying the current location of the map display terminal, the destination location specification information for specifying the destination location of the map display terminal, or the midpoint between the location of the home and the location of the destination Including at least one specific information of waypoint location information identifying the location of
The determining means determines by specifying the allowable rate corresponding to the at least one specific information in a storage means in which allowable rate specifying information that is information for specifying the allowable rate is stored ,
The distribution unit distributes the update information based on a random number value based on the allowable rate determined by the determination unit and identification information for uniquely identifying the map display terminal.
Update information distribution system. The attribute of the delivery request further includes at least one of the day identification information for identifying the day of the week when the delivery request was made, and the time identification information for identifying the time when the delivery request was made. Including
It said determining means is based on the day specifying information or the time specifying information, to determine the allowable rate,
The update information distribution system according to claim 1 . An update information distribution method for distributing update information for updating the map information in response to a distribution request from a map display terminal having map information for displaying a map,
A receiving step of receiving the distribution request by a receiving unit;
A determination step of determining an allowance rate corresponding to a probability that the distribution of the update information is permitted, based on the attribute of the received distribution request, each time the receiving means receives the distribution request;
A distribution step of distributing the update information based on the allowable rate determined by the determination step ;
The allowance rate is an indicator of whether or not the distribution of the update information is permitted,
The attributes of the distribution request are distribution request area place specification information specifying the place of the distribution request area which is an area for requesting distribution in the map information, home place specification information specifying the place of the user's home at the map display terminal The present location specification information for identifying the current location of the map display terminal, the destination location specification information for specifying the destination location of the map display terminal, or the midpoint between the location of the home and the location of the destination Including at least one specific information of waypoint location information identifying the location of
The determining means determines by specifying the allowable rate corresponding to the at least one specific information in a storage means in which allowable rate specifying information that is information for specifying the allowable rate is stored ,
The distribution unit distributes the update information based on a random number value based on the allowable rate determined by the determination unit and identification information for uniquely identifying the map display terminal.
Update information delivery method. An update information distribution program for distributing update information for updating the map information in response to a distribution request from a map display terminal having map information for displaying a map,
Computer,
Receiving means for receiving the distribution request;
A determination unit that determines a permissible rate corresponding to a probability that distribution of the update information is permitted based on an attribute of the received distribution request every time the receiving unit receives the distribution request;
Function as distribution means for distributing the update information based on the allowance rate determined by the determination means;
The allowance rate is an indicator of whether or not the distribution of the update information is permitted,
The attributes of the distribution request are distribution request area place specification information specifying the place of the distribution request area which is an area for requesting distribution in the map information, home place specification information specifying the place of the user's home at the map display terminal The present location specification information for identifying the current location of the map display terminal, the destination location specification information for specifying the destination location of the map display terminal, or the midpoint between the location of the home and the location of the destination Including at least one specific information of waypoint location information identifying the location of
The determining means determines by specifying the allowable rate corresponding to the at least one specific information in a storage means in which allowable rate specifying information that is information for specifying the allowable rate is stored ,
The distribution unit distributes the update information based on a random number value based on the allowable rate determined by the determination unit and identification information for uniquely identifying the map display terminal.
Update information distribution program.

Images