JP5935730B2 - Guidance route search system - Google Patents

Description

  The present invention relates to a guidance route search system that searches for a guidance route that guides an information terminal device to a target point.

  In relation to the guidance route search system as described above, for example, a technique described in Patent Document 1 below is already known. In the technique described in Patent Document 1, a common target point is set for the first information terminal device and the second information terminal device, and it is determined that one of the information terminal devices has arrived at the target point first. In such a case, the current position of the information terminal device that has arrived first is reset to the target point, and the guidance route is searched.

JP 2008-298448 A

By the way, when the user of the information terminal device that arrives first moves, the travel time or travel distance of the guidance route of the information terminal device that arrives later may be shortened, which is more convenient for both.
However, in the technology of Patent Document 1, since the current position of the information terminal device that has arrived first is simply set as the target point, it is only possible to improve the accuracy of the guide route toward the target point, It is not possible to shorten the guide route of the information terminal device to be joined and to join them quickly.

  Therefore, a guidance route search system capable of guiding the user of the information terminal device is required so as to shorten the travel time or travel distance of the guidance route of the information terminal device that arrives later.

The characteristic structure of the guidance route search system which searches the guidance route which guides the information terminal device to the target point according to the present invention includes a first position acquisition unit for acquiring a current position of the first information terminal device, and the first information A second position acquisition unit that acquires a current position of a second information terminal device different from the terminal device, and a target that sets a point in the facility as a common target point for the first information terminal device and the second information terminal device A setting unit; a first route search unit that searches for a first guidance route from the current position of the first information terminal device to the target point; and a second route from the current position of the second information terminal device to the target point. comprising a second route search unit for searching for a guidance route, wherein the target setting unit, the first information terminal apparatus, the target point that has already been set, arrives earlier than the second information terminal device If it is determined that In the same facility and facilities include target point, and starts searching for another point that can be set to the target point, and a candidate point setting unit that sets the search point to the candidate point of the second information terminal device A re-search unit for re-searching the temporary second guidance route from the current position to the candidate point, and a travel time or a travel distance of the re-searched temporary second guidance route is already set for the second guidance route. A target resetting unit that resets the candidate point to a new target point or allows the user to select whether or not resetting is possible when the travel time or travel distance is shorter.

There may be multiple points that can be set as target points in the same facility. By changing the target point in the same facility, the travel time or travel distance of the guidance route of the second information terminal device that arrives later May be shorter. Since the first information terminal device that has arrived first has a time margin, it can often be moved in the same facility for the second information terminal device that arrives later.
According to the above characteristic configuration, a candidate point where the travel time or travel distance of the second guidance route is shortened is searched in the same facility as the facility including the target point that has already been set, and is re-entered as the target point. Since it is set or the user selects whether or not resetting is possible, the travel time or travel distance of the second guidance route can be shortened. Therefore, both can join early. At this time, since the candidate points are searched in the same facility, it is possible to suppress the movement of the first information terminal device that has arrived first outside the facility, and the movement burden on the user of the first information terminal device is large. Can be suppressed.

  Here, it is preferable that the candidate point setting unit does not set the candidate point if the already set travel time or travel distance of the second guidance route is equal to or less than a preset start determination value.

  According to this configuration, when the second information terminal device is about to arrive at the target point soon and there is a low need for searching for a shorter guidance route, unnecessary route search and target point setting are performed. It can be suppressed.

  Here, the target resetting unit is configured such that the travel time or travel distance of the temporary second guide route is shorter than the preset travel determination time or travel distance by a preset permission determination value. In this case, it is preferable that the candidate point is reset to the new target point or the user selects whether to reset the candidate point.

  According to this configuration, resetting the target point allows the target point to be reset only when the effect of shortening the guide route is large to some extent, and unnecessary route search and target point setting are performed. Can be suppressed. Therefore, it can be highly convenient for the user.

  Here, it is preferable that the point set as the candidate point is searched from characteristic points including an entrance / exit in the same facility.

  According to this configuration, the candidate point is searched from the characteristic points including the entrance / exit in the same facility, so that it is possible to set an appropriate point for both information terminal devices to join.

  Here, it is preferable that the candidate information setting unit, the re-search unit, and the target resetting unit are provided in the first information terminal device.

  Since the first information terminal device has arrived at the target point first, the guidance route search processing has been completed, and the processing load is less than that of the second information terminal device that is still performing the guidance route search processing. State. According to said structure, since the 1st information terminal device which is a state with a small processing load performs the process of a candidate point setting part, a re-search part, and a target resetting part, a 1st information terminal device and 2nd Processing load can be distributed among information terminal devices.

  The technical features of the guidance route search system according to the present invention having the above-described configurations can also be applied to the guidance route search method and the guidance route search program. Therefore, the present invention also includes such a method and program. Can be subject to rights. Note that a storage medium such as a DVD-ROM or a flash memory in which the guidance route search program is stored can also be a target of rights.

In this case, the characteristic configuration of the guidance route search method for searching for a guidance route for guiding the information terminal device to the target point is a first position acquisition step in which the arithmetic processing device acquires the current position of the first information terminal device; A second position acquisition step of acquiring a current position of a second information terminal device different from the first information terminal device; and a point in the facility as a common target point for the first information terminal device and the second information terminal device A target setting step for searching for a first guide route from the current position of the first information terminal device to the target point, and a target position from the current position of the second information terminal device. run a second route search step of searching for a second guidance route to a point, the said target setting step, the first information terminal apparatus, the target point that has already been set, before And has a determination step of determining whether the host vehicle has reached earlier than the second information terminal device, as a target point resetting process of resetting the target point, the already facilities include the target point is set In the same facility, another point that can be set as a target point is searched, a candidate point setting step for setting the search point as a candidate point, and a temporary location from the current position of the second information terminal device to the candidate point. Re-search step for re-searching the second guidance route, and when the travel time or travel distance of the re-searched temporary second guidance route is shorter than the already set travel time or travel distance of the second guidance route to, the candidate point, new said has a target resetting step of selecting whether to re-set to reconfigure to or user to the target point, and in the target setting step, the determination stearate In flop, the first information terminal apparatus, the target point that has already been set, if it is determined to have reached earlier than the second information terminal device, the processing unit is the target point reconfigure The point is to start executing the process .

Further, the characteristic configuration of the guidance route search program for causing the computer to execute a process for searching for a guidance route for guiding the information terminal device to the target point is a first position acquisition step of acquiring the current position of the first information terminal device; A second position acquisition step of acquiring a current position of a second information terminal device different from the first information terminal device; and a target point common to the first information terminal device and the second information terminal device in the facility A target setting step for setting a point ; a first guidance route searching step for searching for a first guidance route from the current position of the first information terminal device to the target point; and a current position of the second information terminal device. a second route search step of searching for a second guidance route to a target point, cause the computer to execute, the target setting step, the first information terminal device, already The target point is constant, and has a determining step of determining whether the host vehicle has reached earlier than the second information terminal device, as a target point resetting process of resetting the target point already set in Dining same facilities and that includes the target location in which to find another point which can be set to the target point, a candidate point setting step of setting the search point to the candidate point, the second information terminal device A re-search step for re-searching the temporary second guidance route from the current position to the candidate point, and the second guidance route for which the travel time or travel distance of the re-searched temporary second guidance route is already set If travel time or shorter than the travel distance, the candidate point has a new said the target re-setting step for selecting whether to re-set to reconfigure to or user the target location, wherein the target In constant step, in the determination step, the first information terminal apparatus, the target point that has already been set, if it is determined to have reached earlier than the second information terminal device, the target to the computer The point is to start execution of the point resetting process .

  Naturally, these guidance route search methods and guidance route search programs can also obtain the effects of the above-described guidance route search system, and further incorporate some additional techniques listed as examples of suitable configurations thereof. It is possible.

1 is a block diagram showing a schematic configuration of a guidance route search system according to an embodiment of the present invention. It is a flowchart for demonstrating the process of the guidance route search system which concerns on embodiment of this invention. It is a figure for demonstrating the process of the guidance route search system which concerns on embodiment of this invention.

An embodiment of a guidance route search system 1 according to the present invention will be described.
The guidance route search system 1 is a system that searches for a guidance route that guides the information terminal devices 2 and 10 to a target point. As shown in FIG. 1, the guidance route search system 1 has functions such as a first position acquisition unit 31, a second position acquisition unit 51, a target setting unit 3, a first route search unit 32, and a second route search unit 52. Department.

  The guide route search system 1 is configured to search for guide routes that guide the two information terminal devices 2 and 10 to a common target point, respectively. In order to distinguish the two information terminal devices 2 and 10, the information terminal device that has arrived at the target point first is referred to as the first information terminal device 2, and the one that arrives at the target point later is referred to as the second information terminal device 10 and Call it.

The first position acquisition unit 31 acquires the current position of the first information terminal device 2. The second position acquisition unit 51 acquires the current position of the second information terminal device 10 that is different from the first information terminal device 2. The target setting unit 3 sets a common target point for the first information terminal device 2 and the second information terminal device 10. The first route search unit 32 searches for a first guidance route from the current position of the first information terminal device 2 to the target point. The second route search unit 52 searches for a second guidance route from the current position of the second information terminal device 10 to the target point.
In such a configuration, the target setting unit 3 includes a candidate point setting unit 5, a re-search unit 6, a target resetting unit 7, and the like. When the candidate point setting unit 5 determines that the first information terminal device 2 has reached a target point that has already been set before the second information terminal device 10, the candidate point setting unit 5 is the same as the facility that includes the target point. In the facility, another point that can be set as the target point is searched, and the search point is set as a candidate point. The re-search unit 6 re-searches the temporary second guidance route from the current position of the second information terminal device 10 to the candidate point. The target resetting unit 7 sets the candidate point as a new target when the travel time or travel distance of the re-searched temporary second guide route is shorter than the travel time or travel distance of the already set second guide route. Reset to a point or allow the user to select whether to reset.
Hereinafter, the guidance route search system 1 according to the present embodiment will be described in detail.

1. Guide route search system 1
The guidance route search system 1 searches for a guidance route that guides the information terminal devices 2 and 10 to a target point.
The guidance route search system 1 includes an arithmetic processing unit such as one or a plurality of CPUs as a core member, and a RAM (random access memory) configured to be able to read and write data from the arithmetic processing unit, Consists of a ROM (Read Only Memory) configured to be able to read data from an arithmetic processing unit, and a storage device such as a flash memory and a hard disk configured to be able to store and read large amounts of data. ing. And each function part 3, 31, 32 of the guidance route search system 1 by software (program) memorize | stored in ROM etc. of the guidance route search system 1, hardwares, such as a separately provided arithmetic circuit, or both of them. , 51, 52, and the like. A guidance route search program for causing the arithmetic processing device to realize functions such as the functional units 3, 31, 32, 51, and 52 is stored in a storage device such as a RAM or a ROM that can be referred to by the arithmetic processing device.

In the present embodiment, the guidance route search system 1 is incorporated in the information terminal devices 2 and 10. Typically, a guidance route search program is installed in the storage device of the information terminal devices 2 and 10 to configure the guidance route search system 1.
For example, the guidance route search system 1 is a multi-function mobile phone or portable information terminal device that can be carried by a user, a navigation device mounted on a vehicle, a TV (video playback), audio playback (AV) for music playback, etc. -It is incorporated in an image) device or an information terminal device. Alternatively, the guidance route search system 1 may be incorporated in an information terminal device dedicated to the guidance route search system 1.

  The guidance route search program is stored in a storage medium such as a DVD-ROM or a flash memory and distributed to the user, or is distributed from the network server to the user via the communication network 70. The distributed or distributed guidance route search program is stored in the storage devices of the information terminal devices 2 and 10.

The information terminal devices 2 and 10 move together with the moving body.
For example, when the information terminal devices 2 and 10 are mounted on a vehicle, the moving body is a vehicle. In this case, the information terminal devices 2 and 10 may be portable information terminal devices and multi-function mobile phones that can be carried by the user, or car navigation devices mounted on vehicles.
Alternatively, when the user (human) holds the information terminal devices 2 and 10, the moving body is the user. In this case, the information terminal devices 2 and 10 may be portable information terminal devices or multi-function mobile phones that can be carried by the user.

In the present embodiment, as shown in FIG. 1, the guidance route search system 1 is separately installed on the first information terminal device 2 side and the second information terminal device 10 side. The guidance route search system 1 on the first information terminal device 2 side is referred to as a first guidance route search system 30, and the guidance route search system 1 on the second information terminal device 10 side is referred to as a second guidance route search system 50.
The first guidance route search system 30 includes a first position acquisition unit 31, a first route search unit 32, a guide unit 38, and the like related to the first information terminal device 2.
The second guidance route search system 50 includes a second position acquisition unit 51, a second route search unit 52, a guide unit 58, and the like related to the second information terminal device 10.

  In addition, the target setting unit 3 includes both the first guidance route search system 30 and the second guidance route search system 50 having the same function, and is provided on the first guidance route search system 30 side. The target setting unit 3 is referred to as a first target setting unit 33, and the target setting unit 3 provided on the second guidance route search system 50 side is referred to as a second target setting unit 53. The candidate spot setting unit 5, the re-search unit 6, and the target resetting unit 7 on the first guidance route search system 30 side are referred to as a candidate spot setting unit 35, a re-search unit 36, and a target resetting unit 37. The candidate point setting unit 5, the re-search unit 6, and the target resetting unit 7 on the second guidance route search system 50 side are referred to as a candidate point setting unit 55, a re-search unit 56, and a target resetting unit 57.

2. Functional unit 2-1 on the first information terminal device 2 side. First position acquisition unit 31
The first position acquisition unit 31 is a functional unit that performs a first position acquisition process for acquiring the current position of the first information terminal device 2.
In the present embodiment, the first position acquisition unit 31 determines the current position (coordinates) of the first information terminal device 2 based on the position related information of the first information terminal device 2 acquired from the position information detection device 39 or the like. Is configured to do. The position information detection device 39 includes a GPS (Global Positioning System) receiver, an acceleration sensor, an orientation sensor, a receiver that receives radio waves and light including point position information transmitted from a beacon installed on a road, and the like. Various devices for detecting position information are provided. In addition, the first position acquisition unit 31 receives radio waves including point position information such as base stations transmitted from a base station of a mobile phone line or a wireless LAN access point by the communication device 40, so that the first information You may be comprised so that the present position of the terminal device 2 may be determined.

  Map data may be used for position determination. For example, the first position acquisition unit 31 determines its own terminal position by pattern matching (so-called map matching) between the road network included in the map data and the route indicated by the position information history obtained from the position information detection device 39. Configured to determine. In the present embodiment, the position information detection device 39 is provided in the first information terminal device 2.

2-2. First route search unit 32
The first route search unit 32 is a functional unit that searches for a first guidance route from the current position of the first information terminal device 2 to the target point.
When the target point is reset by the target setting unit 3, the first route search unit 32 re-searches the first guidance route from the current position of the first information terminal device 2 to the reset new target point. Is configured to do.

<Search for guidance route>
In the present embodiment, the first route search unit 32 is configured to search for a guide route from the current position of the first information terminal device 2 to the target point using the map data acquired from the map database 41. . Note that various known methods such as the Dijkstra method can be used for the search for the guidance route.

  When the moving body is set as a vehicle, the map data to be acquired includes road data composed of node data indicating points such as intersections on the map, link data indicating roads connecting the nodes, and the like. Network data etc. are included. Each node data includes data such as location coordinates, location attributes, location names, etc., and each link data includes location coordinates and link lengths, road widths, road attributes, and passages of link start and end points. Data such as various vehicle types and pedestrian traffic.

  When the moving body is set as a user (human), the map data to be acquired is not only the above road network data, but also the network data of pedestrian roads such as sidewalks, pedestrian crossings and pedestrian bridges, and facilities It includes data on passages that humans can pass through, and data on networks and timetables for public transportation such as railways and buses.

In the present embodiment, the map database 41 is stored in the storage device of the first information terminal device 2. Alternatively, the map database 41 is stored in an external information terminal device, and the first route search unit 32 maps from the external information terminal device via data communication such as wireless communication or wired communication by the communication device 40. It may be configured to acquire data.
In addition, the 1st route search part 32 sets the point which is not shared with the 2nd information terminal device 10 as a target point, and becomes a structure which can also perform the normal route search which searches a guidance route.

  Further, the first route search unit 32 may be configured to re-search the guidance route in addition to the case where the target point is reset. For example, when the first information terminal device 2 moves out of the guidance route and the distance between the current position of the first information terminal device 2 and the guidance route is equal to or greater than a predetermined re-search distance, the first information The guidance route from the current position of the terminal device 2 to the set target point may be searched again.

2-3. Guide section 38
The guide unit 38 is a functional unit that guides the searched first guidance route via a display device such as a display or a user interface device 42 such as a speaker. For example, the guide unit 38 generates an image in which the first guide route, the current position of the first information terminal device 2, the target point, and the like are overwritten on the map image generated based on the map data, and displays the image on the display device. Or generating voice data for guiding the traveling direction of the first information terminal device 2 and outputting it to a speaker.
Moreover, the guide part 38 may be comprised so that the present position of the 2nd information terminal device 10, a 2nd guidance route, etc. may be overwritten on a map image.

2-4. Communication device 40
The communication device 40 is a data communication device that performs data communication such as wireless communication or wired communication. The wireless communication includes a mobile phone line, a wireless LAN, Bluetooth (registered trademark), and the like. Wired communication includes a wired LAN, a universal serial bus (USB), and the like.
In the present embodiment, the communication device 40 is connected to a communication network 70 such as a mobile phone communication network or the Internet by data communication such as wireless communication or wired communication. And the communication apparatus 40 acquires the various information which concerns on the guidance route search transmitted from the communication apparatus 60 by the side of the 2nd information terminal device 10 via the communication network 70, or guides to the 2nd information terminal apparatus 10 side. Various information related to route search is transmitted. Information transmitted / received includes information on the current position of each information terminal device, information on a destination point, information on a guidance route, and the like.

  Note that the communication device 40 acquires information transmitted from the communication device 60 on the second information terminal device 10 side via the network server connected to the communication network 70, or transmits information to the second information terminal device 10 side. Or may be configured to transmit. Specifically, the communication device 60 on the second information terminal device 10 side transmits the information on the second information terminal device 10 side to the network server via the data communication and communication network 70. The network server stores the transmitted information on the second information terminal device 10 side in a storage device provided in the network server. The communication device 40 on the first information terminal device 2 side is connected to the network server via the data communication and communication network 70, and acquires the information on the second information terminal device 10 side stored in the storage device. Alternatively, the network server transmits the information on the second information terminal device 10 side stored in the storage device to the communication device 40 on the first information terminal device 2 side via the data communication and communication network 70. In this way, when the network server is used, it is not necessary to synchronize communication between the first information terminal device 2 side and the second information terminal device 10 side, and the reliability of transmission / reception of position information can be improved. It is possible to reduce the communication frequency.

In the present embodiment, the communication device 40 is provided in the first information terminal device 2.
Alternatively, the communication device 40 is connected to a data communication device such as a mobile phone possessed by the user by data communication such as Bluetooth, USB, or wireless LAN, and data communication such as a mobile phone line to which the data communication device can be connected. It may be configured to be connected to the communication network 70 via the network.

The communication device 40 performs data communication with the second information terminal device 10 side using the identification information on the second information terminal device 10 side specified by the user.
The identification information is an address on the communication network 70 such as an IP address (Internet Protocol address) assigned to the second information terminal device 10 for specifying and communicating with the second information terminal device 10, It may be the telephone number of a multi-function mobile phone that is regarded as the information terminal device 10. Moreover, when communicating via a network server, identification information may be the identification number of the 2nd information terminal device 10 registered into the network server. The network server stores terminal identification information such as the IP address and telephone number of the second information terminal device 10 corresponding to the identification number.

3. Functional unit on the second information terminal device 10 side 3-1. Second position acquisition unit 51
The second position acquisition unit 51 is a functional unit that performs a second position acquisition process for acquiring the current position of the second information terminal device 10.
In the present embodiment, the second position acquisition unit 51 is based on the position related information of the second information terminal device 10 acquired from the position information detection device 59 provided in the second information terminal device 10 or the like. It is configured to determine the current position of the device 10. Since the configurations of the second position acquisition unit 51 and the position information detection device 59 are the same as the configurations of the first position acquisition unit 31 and the position information detection device 39, description thereof will be omitted.

3-2. Second route search unit 52
The second route search unit 52 is a functional unit that searches for a second guidance route from the current position of the second information terminal device 10 to the target point. Since the configuration of the second route search unit 52 is the same as the configuration of the first route search unit 32, description thereof is omitted.

3-3. Guide 58
The guide unit 58 is a functional unit that guides the searched second guidance route via a display device such as a display or a user interface device 62 such as a speaker. Since the structure of the guide part 58 is the same as that of the guide part 38, description is abbreviate | omitted.

3-4. Communication device 60
The communication device 60 is a data communication device that performs data communication such as wireless communication or wired communication. Since the configuration of the communication device 60 is the same as the configuration of the communication device 40, description thereof is omitted.

4). Goal setting part 3
The target setting unit 3 is a functional unit that sets a common target point for the first information terminal device 2 and the second information terminal device 10.
In the present embodiment, the first target setting unit 33 provided in the first guidance route search system 30 and the second target setting unit 53 provided in the second guidance route search system 50 have similar functions. It will be explained together.

The target setting unit 3 includes an initial target setting unit 4, a candidate spot setting unit 5, a re-search unit 6, and a target resetting unit 7.
<Initial target setting unit 4>
The initial target setting unit 4 sets an initial common target point.
The initial target setting unit 4 sets a designated point as a common target point when a user designates a point to be designated as a common target point first.
For example, when one of the user on the first information terminal device 2 side and the user on the second information terminal device 10 side designates a spot, the designated spot is set as a common target spot.
The point is designated by the user by the name of the facility, the address, the telephone number, the position on the map displayed on the display, and the like. When a point is designated by name, address, telephone number, etc., a representative point in the corresponding facility is set as a common target point. The representative point may be set to a representative point appropriate for both moving bodies to join in the facility. For example, the representative point is set to a feature point including a facility entrance / exit, a point with a mark suitable for meeting, a parking lot entrance, a parking available point, and the like. If either one of the moving objects is a vehicle, it is set to a feature point facing the road. If both moving objects are humans, the feature point facing the road or the road is faced. It is set as a feature point in the facility that is not.
The initial target setting unit 4 searches for feature points as described above from the map data.

<Candidate point setting unit 5>
When the candidate point setting unit 5 determines that the first information terminal device 2 has reached a target point that has already been set before the second information terminal device 10, the candidate point setting unit 5 is the same as the facility that includes the target point. In the facility, another point that can be set as the target point is searched, and the search point is set as a candidate point.
In this embodiment, when the candidate point setting unit 5 determines that the current position of any one of the information terminal devices is within a predetermined distance range (for example, within 10 m) of the target point, the first information The terminal device 2 is configured to determine that it has reached the target point before the second information terminal device 10.
And the candidate point setting part 5 determines the plant | facility in which a target point is contained using map data. Further, the candidate point setting unit 5 searches for another point that can be set as the target point in the same facility as the determined facility. The candidate point setting unit 5 searches the map data for a suitable point for the two mobiles to join in the facility. For example, the candidate point setting unit 5 searches the map data for feature points including the entrance / exit of the corresponding facility, a point with a mark suitable for meeting, a parking lot entrance, a parking available point, and the like. If either one of the moving objects is a vehicle, it is set to a feature point facing the road. If both moving objects are humans, the feature point facing the road or the road is faced. It is set as a feature point in the facility that is not.
The candidate point setting unit 5 selects, for example, one or a plurality of points from around the facility facing the road and sets them as candidate points when the feature points cannot be found by searching.

  In the present embodiment, the candidate spot setting unit 5 is configured not to set a candidate spot if the already set travel time or travel distance of the second guidance route is equal to or less than a preset start determination value. This is because when the second information terminal device 10 arrives at the target point soon, it is less necessary to search for a shorter guide route. The candidate point setting unit 5 calculates a travel time or a travel distance along the second guide route from the current position of the second information terminal device 10 to the target point. The travel time is calculated in consideration of the type of road included in the second guidance route, the legal maximum speed, the traffic situation, and the like. In the present embodiment, the start determination value is a predetermined constant value. For example, when the start determination value is set as the value of travel time, it is set to a first set time (for example, 5 minutes) that the user of the first information terminal device 2 that arrives first does not have to wait. The When the start determination value is set as the travel distance value, the moving speed according to the type of the moving body (for example, 30 km / h if the moving body is a vehicle, and 4 km / h if the moving body is human). Etc.) is set to a movable distance in the first set time.

<Research unit 6>
The re-search unit 6 re-searches the temporary second guidance route from the current position of the second information terminal device 10 to the candidate point.
The re-search unit 6 searches for the guidance route by the same method as the first route search unit 32 and the second route search unit 52. When a plurality of candidate points are set, the re-search unit 6 searches for a temporary second guidance route for each candidate point.

<Target resetting unit 7>
The target resetting unit 7 sets the candidate point as a new target when the travel time or travel distance of the re-searched temporary second guide route is shorter than the travel time or travel distance of the already set second guide route. Reset to a point or allow the user to select whether to reset.

  The target resetting unit 7 calculates the travel time or travel distance along the temporary second guidance route from the current position of the second information terminal device 10 to the candidate point. The travel time is calculated in consideration of the type of road included in the temporary second guidance route, the legal maximum speed, the traffic jam, and the like. If there are multiple provisional second guidance routes, the travel time or travel distance is calculated for each provisional second guidance route, and the provisional second guidance route with the shortest travel time or travel distance is selected as the target point reset candidate. To be elected. Similarly, the target resetting unit 7 calculates the travel time or travel distance along the second guidance route from the current position of the second information terminal device 10 to the target point that has already been set.

  In the present embodiment, the target resetting unit 7 makes the travel time or travel distance of the temporary second guide route shorter than the preset travel determination time or travel distance by a preset permission determination value or more. In this case, the candidate point is reset to a new target point or the user is allowed to select whether resetting is possible. In the present embodiment, the permission determination value is a predetermined constant value. For example, when the permission determination value is set as the value of travel time, the user of the first information terminal device 2 that has arrived earlier may feel that the profit that can be joined earlier than the effort of moving is greater. It is set to a second set time that can be made (for example, the same 5 minutes as the first set time). When the permission determination value is set as the travel distance value, the moving speed according to the type of the moving body (for example, 30 km / h if the moving body is a vehicle, and 4 km / h if the moving body is human). Etc.) is set to a movable distance in the second set time. Alternatively, the permission determination value may be a variable value. For example, the permission determination value may be set to a value of a predetermined ratio (for example, 20%) with respect to the travel time or travel distance of the second guidance route.

  The target resetting unit 7 may be configured to automatically reset a candidate spot to a new target spot without allowing the user to select, or whether or not the candidate spot can be reset to a new target spot. The user may be selected. When the target resetting unit 7 causes the user to select, the candidate point, the provisional second guidance route, the travel time or the degree of shortening of the travel distance, and the like are displayed on one or both information terminals via the user interface devices 42 and 62. The user of the devices 2 and 10 is guided and whether or not resetting is possible is selected. The target resetting unit 7 resets the candidate spot as a new target spot when the user selects to permit resetting.

  In the present embodiment, the candidate point setting unit 5, the re-search unit 6, and the target resetting unit 7 that perform target point resetting processing are configured to be included in the first information terminal device 2. That is, the candidate point setting unit 35, the re-searching unit 36, and the target resetting unit 37 of the first target setting unit 33 provided in the first information terminal device 2 previously attached to the destination are used to reset the target point. It is comprised so that this process may be performed. Since the first information terminal device 2 has arrived at the target point first, the guidance route search and guidance processing has been completed, and the second information terminal device 10 still performing guidance route search and guidance processing. This is because the processing load is less than that.

5. Flowchart The processing of the guidance route search system 1 according to the present embodiment described above can be configured as shown in the example of the flowchart shown in FIG.
The target setting unit 3 performs a series of common target search processes when there is a start request for a process of setting a common target point and searching for a guidance route (referred to as a common target search process) (step # 01: Yes). (Step # 02 to Step # 10) are started.
For example, the target setting unit 3 receives a request for starting a common target search process by a user of one information terminal device, and identification information for specifying the other information terminal device that shares the target point is specified. In addition, the user of the other information terminal device is allowed to select whether or not to start the common target search process via data communication. The target setting unit 3 starts the common target search process when permission to start is selected.

The initial target setting unit 4 executes processing for setting an initial common target point (step # 02). For example, when a common target point is specified by the user of one information terminal device, the initial target setting unit 4 sends the specified target point to the user of the other information terminal device via data communication. Lets you choose whether or not. The initial target setting unit 4 sets a common target point for both information terminal devices when permission is selected.
Then, the first route search unit 32 and the second route search unit 52 start the guidance route search process toward the common target point (step # 03).

When the target setting unit 3 determines that any one of the information terminal devices has reached the target point first (step # 04: Yes), the target point resetting process from step # 05 to step # 09 is performed. To start. The information terminal device that has arrived first is referred to as the first information terminal device 2, and the information terminal device that has not yet arrived is referred to as the second information terminal device 10.
Candidate point setting unit 5 determines whether the already set travel time or travel distance of the second guidance route is equal to or less than a preset start determination value (step # 05). If it is determined that the candidate point setting unit 5 is equal to or less than the start determination value (step # 05: Yes), the process proceeds to step # 10, and the target point resetting process is terminated. If it is determined that the candidate point setting unit 5 is larger than the start determination value (step # 05: No), the process proceeds to step # 06, where the target point is set in the same facility that includes the already set target point. Another point that can be set as a point is searched, and a candidate point setting process for setting the search point as a candidate point is executed.

Then, the re-search unit 6 executes a process of re-searching the temporary second guidance route from the current position of the second information terminal device 10 to the candidate point (step # 07).
The target resetting unit 7 determines whether or not the travel time or travel distance of the re-searched temporary second guide route is shorter than the travel time or travel distance of the already set second guide route (step #). 08). In the present embodiment, the target resetting unit 7 determines whether or not the travel time or travel distance of the temporary second guide route is shorter than the preset permission determination value than the travel time or travel distance of the second guide route. It is configured to determine.
When it is determined that the target resetting unit 7 is shortened (step # 08: Yes), the target resetting process is performed to reset the candidate spot to a new target spot or to allow the user to select whether resetting is possible or not ( Step # 09). The first route search unit 32 and the second route search unit 52 perform guidance route search processing toward the reset target point. On the other hand, when it is determined that the target resetting unit 7 does not shorten (step # 08: No), the target resetting process is not executed and the process proceeds to step # 10.

  When the target setting unit 3 determines that the first information terminal device 2 and the second information terminal device 10 end the common target search process, for example, by arriving at the target point (step # 10: Yes), the common target search End the process.

6). Example of Common Target Search Process Next, an example of the common target search process will be described with reference to FIG.
In the example shown in FIG. 3, the initial target point OP is set at the central exit of station A. The first information terminal device 2 has moved by train and has arrived at the target point OP first. When the first information terminal device 2 arrives at the target point OP, the second information terminal device 10 is located on the south side with respect to the station A and is moving by a vehicle. Since the second guidance route Rt goes to the central exit located on the north side of the A station, the second guidance route Rt is a route that passes through an elevated road that crosses the track, and is a detour route that does not go straight to the A station.

  When the candidate point setting unit 5 determines that the first information terminal device 2 has reached the target point first, the candidate point setting unit 5 is another facility that can be set as the target point in the same facility as the station A including the target point. A point is searched, and the search point is set as a candidate point. In the example shown in FIG. 3, the south exit OPtmp1, the east exit OPtmp2, and the west exit OPtmp3 are searched for candidate points. The re-search unit 6 re-searches the temporary second guidance routes Rttmp1, Rttmp2, and Rttmp3 from the current position of the second information terminal device 10 to the south exit OPtmp1, the east exit OPtmp2, and the west exit OPtmp3, respectively.

  The target resetting unit 7 calculates the travel time or travel distance for each of the temporary second guidance routes Rttmp1, Rttmp2, and Rttmp3, and determines the temporary second guidance route Rttmp1 toward the south exit with the shortest travel time or travel distance as the target point. Selected as a candidate for resetting. Then, the target resetting unit 7 determines that the travel time or travel distance of the temporary second guide route Rttmp1 toward the south exit is shorter than the travel time or travel distance of the already set second guide route Rt, South exit OPtmp1 is reset to a new target point.

[Other Embodiments]
Finally, other embodiments of the present invention will be described. Note that the configuration of each embodiment described below is not limited to being applied independently, and can be applied in combination with the configuration of other embodiments as long as no contradiction arises.

(1) In the above embodiment, the first information terminal device 2 includes the position information detection device 39, the communication device 40, the map database 41, and the user interface device 42, and the second information terminal device 10 includes the position information. The case where the detection device 59, the communication device 60, the map database 61, and the user interface device 62 are provided has been described as an example. However, the embodiment of the present invention is not limited to this. That is, a part or all of the communication devices 40 and 60, the map databases 41 and 61, and the user interface devices 42 and 62 are provided outside the first information terminal device 2 or the second information terminal device 10, and wireless communication or You may be comprised so that data communication with the 1st information terminal device 2 or the 2nd information terminal device 10 is possible by data communications, such as wired communication.

(2) In said embodiment, the guidance route search system 1 demonstrated as an example the case where it was integrated in the 1st information terminal device 2 and the 2nd information terminal device 10. FIG. However, the embodiment of the present invention is not limited to this. That is, some or all of the functions of the guidance route search system 1 are incorporated in an information terminal device such as a network server connected to the communication network 70, and the information terminal device such as the network server and the first information terminal device 2 And the second information terminal device 10 are configured to be capable of data communication by data communication such as wireless communication or wired communication, and information on the guidance route and target point information searched by the guidance route search system 1 via data communication. The information on the current position of each information terminal device may be transmitted.

(3) In said embodiment, the candidate point setting part 5, the re-search part 6, and the target reset part 7 which perform the reset process of a target point are the cases where the 1st information terminal device 2 is equipped. Described as an example. However, the embodiment of the present invention is not limited to this. That is, the candidate point setting unit 5, the re-search unit 6, and the target resetting unit 7 that perform target point resetting processing may be included in the second information terminal device 10.

(4) In the above embodiment, the candidate spot setting unit 5 is configured not to set a candidate spot if the already set travel time or travel distance of the second guidance route is equal to or less than a preset start determination value. The case has been described as an example. However, the embodiment of the present invention is not limited to this. That is, the candidate spot setting unit 5 may be configured to set the candidate spot regardless of the travel time or travel distance of the already set second guidance route.

(5) In the above embodiment, the target resetting unit 7 determines that the travel time or travel distance of the temporary second guide route is preset based on the travel time or travel distance of the second guide route that has already been set. An example has been described in which the candidate point is reset to a new target point or the user is allowed to select whether resetting is possible when the determination value is shorter than the determination value. However, the embodiment of the present invention is not limited to this. That is, the target resetting unit 7 determines the candidate point when the travel time or travel distance of the temporary second guide route is slightly shorter than the travel time or travel distance of the already set second guide route. It may be configured to reset to a new target point or to allow the user to select whether or not resetting is possible.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used for a guidance route search system that searches for a guidance route that guides an information terminal device to a target point.

1: Guide route search system 2: First information terminal device 3: Target setting unit 4: Initial target setting unit 5: Candidate point setting unit 6: Re-search unit 7: Target resetting unit 10: Second information terminal device 30: First guidance route search system 31: First position acquisition unit 32: First route search unit 33: First target setting unit 35: Candidate point setting unit 36: Re-search unit 37: Target resetting unit 38: Guide unit 39: Position information detection device 40: communication device 41: map database 42: user interface device 50: second guidance route search system 51: second position acquisition unit 52: second route search unit 53: second target setting unit 55: candidate point Setting unit 56: Re-search unit 57: Target resetting unit 58: Guide unit 59: Position information detection device 60: Communication device 61: Map database 62: User interface device 70: Communication network

Claims (7)

A guidance route search system for searching a guidance route for guiding an information terminal device to a target point,
A first position acquisition unit for acquiring a current position of the first information terminal device;
A second position acquisition unit for acquiring a current position of a second information terminal device different from the first information terminal device;
A target setting unit that sets a point in the facility as the target point common to the first information terminal device and the second information terminal device;
A first route search unit for searching for a first guidance route from the current position of the first information terminal device to the target point;
A second route search unit for searching for a second guidance route from the current position of the second information terminal device to the target point,
The goal setting unit includes:
The first information terminal apparatus, the target point that has already been set, if it is determined to have reached earlier than the second information terminal device, in the same facility and facilities include the target point, begins searching configurable another point to the destination point, and a candidate point setting unit that sets the search point to the candidate point,
A re-search unit for re-searching the temporary second guidance route from the current position of the second information terminal device to the candidate point;
When the travel time or travel distance of the re-searched temporary second guide route is shorter than the already set travel time or travel distance of the second guide route, the candidate point is reset to the new target point. A target route search system comprising: a target resetting unit that sets or allows a user to select whether resetting is possible or not.   2. The guide route search system according to claim 1, wherein the candidate point setting unit does not set the candidate point if the already set travel time or travel distance of the second guide route is equal to or less than a preset start determination value.   The target resetting unit, when the travel time or travel distance of the temporary second guide route is shorter than the preset travel determination time or travel distance than the preset travel time or travel distance of the second guide route The guided route search system according to claim 1, wherein the candidate point is reset to a new target point or allows a user to select whether resetting is possible.   The guidance route search system according to any one of claims 1 to 3, wherein the point set as the candidate point is searched from characteristic points including an entrance / exit in the same facility.   5. The guidance route search system according to claim 1, wherein the candidate point setting unit, the re-search unit, and the target resetting unit are provided in the first information terminal device. A guidance route search method for searching a guidance route for guiding an information terminal device to a target point,
Arithmetic processing unit
A first position acquisition step of acquiring a current position of the first information terminal device;
A second position acquisition step of acquiring a current position of a second information terminal device different from the first information terminal device;
A target setting step for setting a point in a facility as the target point common to the first information terminal device and the second information terminal device;
A first guidance route search step for searching for a first guidance route from the current position of the first information terminal device to the target point;
A second route search step for searching for a second guidance route from the current position of the second information terminal device to the target point, and
The goal setting step includes :
The first information terminal apparatus, the target point that has already been set, and has a determining step of determining whether or not reached earlier than the second information terminal device,
As a target point resetting process for resetting the target point,
In the same facility as the facility including the target point that has already been set, a candidate point setting step of searching for another point that can be set as the target point and setting the search point as a candidate point;
A re-search step for re-searching the temporary second guidance route from the current position of the second information terminal device to the candidate point;
When the travel time or travel distance of the re-searched temporary second guide route is shorter than the already set travel time or travel distance of the second guide route, the candidate point is reset to the new target point. has set to or user and the target re-setting step for selecting whether to re-set, and
In the target setting step, when it is determined in the determination step that the first information terminal device has reached the target point that has already been set before the second information terminal device, the calculation is performed. A guidance route search method in which a processing device starts execution of the target point resetting process . A guide route search program for causing a computer to execute a process of searching for a guide route for guiding an information terminal device to a target point,
A first position acquisition step of acquiring a current position of the first information terminal device;
A second position acquisition step of acquiring a current position of a second information terminal device different from the first information terminal device;
A target setting step for setting a point in a facility as the target point common to the first information terminal device and the second information terminal device;
A first guidance route search step for searching for a first guidance route from the current position of the first information terminal device to the target point;
Causing the computer to execute a second route search step of searching for a second guidance route from the current position of the second information terminal device to the target point;
The goal setting step includes :
The first information terminal apparatus, the target point that has already been set, and has a determining step of determining whether or not reached earlier than the second information terminal device,
As a target point resetting process for resetting the target point,
In the same facility as the facility including the target point that has already been set, a candidate point setting step of searching for another point that can be set as the target point and setting the search point as a candidate point;
A re-search step for re-searching the temporary second guidance route from the current position of the second information terminal device to the candidate point;
When the travel time or travel distance of the re-searched temporary second guide route is shorter than the already set travel time or travel distance of the second guide route, the candidate point is reset to the new target point. has set to or user and the target re-setting step for selecting whether to re-set, and
In the target setting step, when it is determined in the determination step that the first information terminal device has reached the target point that has already been set before the second information terminal device , A guide route search program for starting execution of the target point resetting process .

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