JP6288982B2 - Information processing system, server, terminal device, information processing device, information processing method, and information processing program - Google Patents

Description

  The present invention relates to an information processing system, a server, a terminal device, an information processing device, an information processing method, and an information processing program.

  2. Description of the Related Art Navigation devices for route guidance that guide a user to a destination are widely known. For example, the navigation device described in the cited document 1 acquires the current position of the user and guides the user how to proceed with respect to a landmark at an intersection near the current position.

JP 2000-131084 A

  By the way, the navigation device does not always acquire the current position of the user with high accuracy. For example, when acquiring the current position, the GPS receiver side performance may be low, or the positioning accuracy may be reduced due to multipath or the like. And when a user's present position cannot be acquired with high precision, there exists a possibility of performing incorrect route guidance.

  The present invention has been made in view of the above problems, and an object thereof is to provide an information processing system, a server, a terminal device, an information processing device, an information processing method, and an information processing program for performing route guidance more appropriately. It is to provide.

  According to one aspect of the present invention, when the terminal device is located in the vicinity of a branch point, the position acquisition unit that acquires position information indicating the position of the terminal device is outside a predetermined region including the branch point. Landmark extraction means for extracting landmarks as out-of-area landmarks, guidance information generation means for generating guidance information regarding route guidance using at least the out-of-area landmarks, and route guidance using the guidance information There is provided an information processing system comprising route guidance means.

  According to the present invention, since guidance information is generated using an out-of-region landmark, route guidance can be performed more appropriately.

The figure which shows an example of route guidance. 1 is a block diagram showing a schematic configuration of an information processing system according to an embodiment of the present invention. The sequence diagram which shows an example of the processing operation of an information processing system.

  Embodiments according to the present invention will be specifically described below with reference to the drawings.

(First embodiment)
First, the outline of the present invention will be described. FIG. 1 is a diagram illustrating an example of route guidance. In FIGS. 1A and 1B, the actual current position of the user is Q, but since the acquisition accuracy is not so high, the navigation apparatus recognizes that the current position of the user is P. Show.

  In this case, as shown in FIG. 1A, the store A at the intersection near the position P is set as a landmark, and the store A is moved straight to the right to guide the user at the position P as indicated by a solid arrow. It is possible that route guidance is given. However, since the user is actually at the position Q, there is a possibility that the user may accidentally advance in the direction of the dashed arrow.

  On the other hand, as shown in FIG. 1 (b), in the present invention, a store B that is some distance away is used as an out-of-region landmark (described later) instead of the store A at the intersection near the position P. Then, for example, the route guidance is “Please head toward store B”. By guiding in this way, even if the current position of the user is P or Q, the user can correctly go to the destination local area.

  In this way, even when the accuracy of the current position of the user is low, an error in the current position can be regarded as relatively small by using a landmark located at a certain distance from the intersection, and an appropriate route Guidance can be provided. This will be described in more detail below.

  FIG. 2 is a block diagram showing a schematic configuration of the information processing system according to the embodiment of the present invention. The information processing system of FIG. 2 performs route guidance to a predetermined destination, and includes a terminal device 1 and a server 2. Although the terminal device 1 and the server 2 communicate with each other via the network 3, the network 3 may be either a wired line or a wireless line, and the type and form of the line are not limited.

  The terminal device 1 is used by a user, and may be a mobile electronic device such as a mobile phone, a smartphone, or a tablet terminal device 1 or a stationary electronic device such as a personal computer or a car navigation device. At least a part of the terminal device 1 and the server 2 is realized by a computer.

  The terminal device 1 includes a communication unit 11, an operation input unit 12, an output unit 13, a position positioning unit 14, and a control unit 15.

  The communication unit 11 is an interface that transmits and receives information between the control unit 15 and the server 2 via the network 3.

  The operation input unit 12 is an interface for a user to input an operation to the terminal device 1, and is, for example, a touch panel or a microphone in a mobile electronic device, a keyboard, a touch pad, or a dial button in a stationary electronic device.

  The output unit 13 is an interface that outputs various types of information from the terminal device 1 to the user, and is, for example, a liquid crystal display that displays video. More specifically, the output unit 13 displays a GUI (Graphical User Interface) for receiving an operation from the user, guidance information for guiding the user to the destination, and the like. Alternatively, the output unit 13 may be a speaker that outputs guidance information and the like by voice.

  Further, the output unit 13 may not directly present guidance information or the like to the user. For example, the output unit 13 may output a video signal and / or an audio signal to a display unit and / or a speaker connected to the outside.

  The position positioning unit 14 measures the current position of the terminal device 1. The position positioning unit 14 may include, for example, a GPS (Global Positioning System) receiver (not shown), and may position the current position based on the received GPS satellite signal. In addition to such GPS positioning, the position positioning unit 14 performs positioning such as base station positioning based on received radio wave intensity from a communicating base station, Wi-Fi positioning based on a Wi-Fi (registered trademark) access point, and the like. It may be possible to measure the current position of the terminal device 1 by a plurality of methods with different accuracy.

  The position positioning unit 14 may generate positioning accuracy information indicating the positioning accuracy. The positioning accuracy information is, for example, DOP (Dilution Of Precision), GPS signal reception intensity, the number of satellites used for positioning, and a positioning method. Further, the positioning accuracy information may include information indicating whether or not there is a possibility of causing a false match. For example, since base station positioning is inferior in positioning accuracy compared with GPS positioning, information indicating that there is a possibility of erroneous matching in the case of base station positioning is included in advance.

  The control unit 15 is realized by, for example, a processor (not shown) executing a predetermined program, and includes a position acquisition unit 151, a search condition setting unit 152, an information transmission unit 153, and a route guidance unit 154. And have.

  The position acquisition unit 151 acquires current position information indicating the current position of the terminal device 1 from the position positioning unit 14. Further, the position acquisition unit 151 may acquire the positioning accuracy information from the position positioning unit 14.

  The search condition setting unit 152 sets a search condition including at least the destination in accordance with, for example, an operation on the operation input unit 12 by the user. In addition, the search condition may include a departure place, a transportation facility to be used, a condition regarding cost and time, and the like.

  The information transmission unit 153 sends a search request including the current position information of the terminal device 1 acquired by the position acquisition unit 151 and the search condition set by the search condition setting unit 152 from the communication unit 11 via the network 3. To the server 2. Further, the information transmission unit 153 may transmit the measurement accuracy information to the server 2.

  The route guidance unit 154 acquires guidance information generated by the server 2 in response to the search request, and performs route guidance that guides the user to the destination.

  On the other hand, the server 2 includes a communication unit 21, a storage unit 22, and a control unit 23.

  The communication unit 21 is an interface that transmits and receives information between the control unit 25 and the terminal device 1 via the network 3.

  The storage unit 22 is a fixed data storage such as a hard disk, and stores a route network information database 221 including traffic network information and a map information database 222 including map information. Traffic network information and map information are used to generate guidance information.

  The traffic network information is information that defines a traffic network such as a railway or a bus or a road network. Information on the transportation network includes route information, timetable information, toll information, etc. of transportation facilities. The information on the road network is expressed by a combination of node data that is a node on the road network expression such as an intersection and link data that is a road section between nodes.

  The map information includes map data such as road maps of the whole country and each region, and map object information associated with the map data. The map object information includes shape information about the shape of the facility displayed on the map, note information about the note displayed on the map, symbol information about the symbol displayed on the map, and the like. The map information may include route map information related to a route map of public transportation.

  The above traffic network information and map information may be updated at a predetermined timing.

  Note that the storage unit 22 does not necessarily have to be provided in the server 2 and may be provided in a separate device connected via the network 3.

  The control unit 23 is realized by, for example, a processor (not shown) executing a predetermined program, and includes an information reception unit 231, a determination unit 232, a landmark extraction unit 233, and a guidance information generation unit 234. And an information transmission unit 235.

  The information receiving unit 231 receives the current location information and search conditions of the terminal device 1 transmitted from the terminal device 1 from the communication unit 21 via the network 3. Also. When information related to positioning accuracy is transmitted from the terminal device 1, this information is also received.

  The determination unit 232 determines the possibility that a mismatch occurs between the current position of the terminal device 1 and the actual position of the terminal device 1. A false match refers to a state in which both positions are different, more specifically, a state in which both positions are separated by a predetermined distance or more. Then, the determination unit 232 determines whether or not to extract out-of-region landmarks to be described later based on the possibility of a false match.

  The landmark extraction unit 233 extracts a landmark for generating guidance information. Here, when there is a branching point (an intersection or a road branching point) in the vicinity of the current position of the terminal device 1, at least one landmark outside the predetermined non-extracted region including this branching point is Extract as an outside landmark. By extracting from outside the non-extraction region, landmarks that are relatively far away from each other are extracted as compared with the case of extraction from the non-extraction region. Further, the landmark extraction unit 233 may extract a landmark in the non-extraction area in addition to the out-of-area landmark, or may extract a plurality of landmarks.

  When an out-of-region landmark is extracted, the guidance information generation unit 234 generates guidance information related to route guidance for guiding the user to the destination using at least the out-of-region landmark. Note that the guidance information generation unit 234 may generate guidance information using landmarks in the non-extraction area in addition to out-of-area landmarks.

  The information transmission unit 235 transmits the generated guidance information from the communication unit 21 to the terminal device 1 via the network 3.

  FIG. 3 is a sequence diagram illustrating an example of a processing operation of the information processing system.

  First, the search condition setting unit 152 of the terminal device 1 sets a search condition (step S1). And the information transmission part 153 transmits the search request | requirement containing search conditions to the server 2 (step S2). Thereby, the information receiving unit 231 of the server 2 receives the search request (step S11).

  In addition, after setting the search condition or in parallel with setting the search condition, the position acquisition unit 151 acquires current position information indicating the current position of the terminal device 1 (step S3). Then, the information transmission unit 153 transmits the current position information to the server 2 (Step S4). The position acquisition unit 151 may also acquire positioning accuracy information, and the information transmission unit 235 may transmit the positioning accuracy information.

  When the information receiving unit 231 of the server 2 acquires the current position information (step S12), the determining unit 232 determines whether or not a branch point such as an intersection is in the vicinity of the current position of the terminal device 1, in other words, the user It is determined whether or not it is in the vicinity of a branch point such as (step S13). This determination is made, for example, whether or not the distance between the center of the branch point and the current position of the terminal device 1 is equal to or less than a predetermined value, or within a range in which the current position of the terminal device 1 is determined in advance as “near the branch point”. Or not.

  When the current position of the terminal device 1 is in the vicinity of the branch point (YES in step S13), the determination unit 232 determines whether or not the out-of-region landmark needs to be extracted (step S14). More specifically, the determination unit 232 determines that an out-of-region landmark is to be extracted when a request for guidance using an out-of-region landmark is received from the user, or when there is a high possibility of a mismatch. . Various methods for determining the possibility of a false match are conceivable.

  As a first example, the determination unit 232 compares the current position of the terminal device 1 with the multipath generation area, and if the current position of the terminal apparatus 1 is within the multipath generation area, a mismatch may occur. It can be determined that there is sex. This is because the accuracy of GPS positioning decreases when a multipath occurs. Since the point where the multipath occurs is known, such as a place where high-rise buildings are lined up, the multipath generation area may be stored in advance in the storage unit 22 as a database. More specifically, the multipath generation area is stored in advance, and the determination unit 232 may determine whether or not the current position of the terminal device 1 is within the multipath generation area. The branch point in the area may be stored in advance, and the determination unit 232 may determine whether or not the branch point near the current position of the terminal device 1 is in the multipath generation area.

  As a second example, the determination unit 232 can determine that there is a high possibility that a mismatch will occur at the start of route guidance (that is, when a search request is received) or immediately after the start of route guidance (that is, immediately after reception of a search request). . This is because when the route guidance proceeds to some extent, the current position may be corrected based on the history of the position of the terminal device 1, but correction based on the history is difficult at the start or immediately after the start of the route guidance.

  As a third example, when the positioning accuracy information is transmitted from the terminal device 1, the determination unit 232 may determine the possibility of an erroneous match based on the positioning accuracy information. As described above, the positioning accuracy information includes DOP, GPS signal reception intensity, the number of positioning satellites, and the like. Specifically, the determination unit 232 can determine that a false match occurs by comparing the DOP, GPS signal reception intensity, and / or the number of positioning satellites with a predetermined threshold.

  In addition, when the positioning accuracy information indicates the positioning method of the position positioning unit 14, the positioning method is determined to be low (for example, base station positioning), or the positioning method is switched ( For example, when switching from indoor positioning to outdoor positioning or when switching from GPS positioning to base station positioning), the determination unit 232 may determine that a false match occurs.

  As a fourth example, the determination unit 232 may receive information on whether or not there is a false match from the user. More specifically, the current position of the terminal device 1 acquired by the position acquisition unit 151 is displayed on the map on the output unit 13 of the terminal device 1. As a result, the user can easily grasp whether or not the current position of the terminal device 1 acquired by the position acquisition unit 151 matches the actual current position of the terminal device 1, and whether or not it is a false match based on the user's own judgment. Can be input to the terminal device 1 from the operation input unit 12. Then, information indicating that the information transmission unit 153 of the terminal device 1 is mismatched may be transmitted to the determination unit 232 of the server 2.

  In addition, various determination methods are conceivable, and a comprehensive determination may be made using a plurality of determination methods.

  In the present embodiment, an example is shown in which the server 2 determines whether to extract an out-of-region landmark. However, this determination may be performed by the terminal device 1 and the determination result may be transmitted to the server 2.

  If it is determined that an out-of-region landmark is to be extracted due to the possibility of a false match (YES in step S14), the landmark extraction unit 233 sets a non-extraction region, and one or more regions outside the non-extraction region. A landmark is extracted (step S15). This non-extraction region may be, for example, a region where the distance from the center of the branch point is constant, or may be a region predetermined for each branch point. Further, the non-extracted area may be set to be larger as the possibility of a mismatch is higher. Further, when the road at the branch point is large, the user can look farther, so the non-extraction area may be set large, or the non-extraction area is set within the display range of the map output to the output unit 13. May be.

  The landmark extraction unit 233 extracts, as landmarks outside the region, landmarks outside the non-extracted region that are closest to the current position in the traveling direction on the route, the target local area, or particularly prominent. Also good. Further, the landmark extracting unit 233 may extract a plurality of out-of-region landmark candidates, and select one that satisfies a certain condition (for example, one that is in the traveling direction of the route).

  In addition, it is desirable that the landmark extraction unit 233 preferentially extracts landmarks that are outside the non-extraction area and have no similar landmarks in the non-extraction area as out-of-area landmarks. This is confusing for the user. Whether or not they are similar is determined by, for example, the appearance or genre of the color or shape of the landmark. Similar landmarks may be stored in the storage unit 22 in advance as a database.

  As a specific example, when there is a chain store in the non-extraction region, it is desirable to use a region other than the chain store as an out-of-region landmark. In addition, when there is a fast food restaurant in the non-extraction area, it is desirable to use a place other than the fast food restaurant as an out-of-area landmark.

  Then, the guidance information generation unit 234 generates guidance information using the extracted out-of-region landmark (step S16). At this time, the guidance information generation unit 234 may use at least an out-of-area landmark, and may use a landmark in the non-extraction area.

  For example, as illustrated in FIG. 1B, when the landmark extraction unit 233 extracts a landmark B shop in the traveling direction as an out-of-region landmark, the guidance information generation unit 234 moves toward the out-of-region landmark. , Guidance information for guiding “Please head toward store B” is generated. In addition to this, the guidance information generation unit 234 generates guidance information for guiding “Please store A on the right and toward store B” using the landmark A store in the non-extraction area. May be.

  As another example, when the landmark extraction unit 233 extracts a landmark that is opposite to the traveling direction with respect to the current position of the terminal device 1 as an out-of-region landmark, the guidance information generation unit 234 Guidance information for guiding the user to proceed with the landmark behind is generated.

  In addition, when the current position of the terminal device 1 is not in the vicinity of the branch point (NO in step S13), or when it is determined that it is not necessary to extract the out-of-region landmark (NO in step S14), the non-extracted region is particularly selected. Without setting, the guidance information generation unit 234 generates guidance information by a known method (step S17).

  When the guidance information is generated in step S16 or S17, the information transmission unit 235 transmits the guidance information to the terminal device 1 (step S18).

  In response to this, the information receiving unit 231 of the terminal device 1 receives the guidance information (step S5). Then, the route guidance unit 154 provides route guidance to the user using the output unit 13 based on the guidance information (step S6). For example, when the output unit 13 is a display, an image as shown in FIG. 1B may be displayed with a reduced scale, and when the output unit 13 is a speaker, the route guidance sentence in FIG. It may be output.

  The above steps S3 to S6 and S12 to S18 are performed until the terminal device 1 arrives at the destination (step S7).

  Thus, in this embodiment, guidance information is generated using an out-of-area landmark that is distant from the current position of the terminal device 1. Therefore, even when the current position of the terminal device 1 is somewhat inaccurate, route guidance can be performed appropriately.

  The configuration in FIG. 2 is an example, and at least some of the configuration requirements in the server 2 may be in the terminal device 1, or at least some of the configuration requirements in the terminal device 1 are in the server 2. May be. For example, the storage unit 22 and the control unit 23 in the server 2 are provided in the terminal device 1 to configure an information processing device (so-called stand-alone type) information processing device that can provide route guidance only by the terminal device 1 without communication. Also good.

  At least a part of the information processing system described in the above-described embodiment may be configured by hardware or software. When configured by software, a program for realizing at least a part of the functions of the information processing system may be stored in a recording medium such as a flexible disk or a CD-ROM, and read and executed by a computer. The recording medium is not limited to a removable medium such as a magnetic disk or an optical disk, but may be a fixed recording medium such as a hard disk device or a memory.

  Further, a program that realizes at least a part of the functions of the information processing system may be distributed via a communication line (including wireless communication) such as the Internet. Further, the program may be distributed in a state where the program is encrypted, modulated or compressed, and stored in a recording medium via a wired line such as the Internet or a wireless line.

  Based on the above description, those skilled in the art may be able to conceive additional effects and various modifications of the present invention, but the aspects of the present invention are not limited to the individual embodiments described above. Absent. Various additions, modifications, and partial deletions can be made without departing from the concept and spirit of the present invention derived from the contents defined in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Terminal device 11 Communication part 12 Operation input part 13 Output part 14 Position positioning part 15 Control part 151 Position acquisition part 152 Search condition setting part 153 Information transmission part 154 Route guidance part 2 Server 21 Communication part 22 Storage part 221 Route network information database 222 Map information database 23 Control unit 231 Information reception unit 232 Determination unit 233 Landmark extraction unit 234 Guidance information generation unit 235 Information transmission unit

Claims (11)

Position acquisition means for acquiring position information indicating the position of the terminal device;
Landmark extraction means for extracting a landmark outside a predetermined area including the branch point as an out-of-area landmark when the terminal device is located in the vicinity of the branch point;
Guidance information generating means for generating guidance information on route guidance using at least the out-of-region landmark;
An information processing system comprising: route guidance means for performing route guidance using the guidance information. A determination unit that determines whether or not to extract the out-of-region landmark based on a possibility that the acquired position of the terminal device and the actual position of the terminal device are a mismatch;
The landmark extracting unit, when it is determined that extracts the region outside landmark, extracting the area outside landmark information processing system according to claim 1. A determination unit that compares the position of the terminal device with a multipath generation region and determines whether to extract the out-of-region landmark;
The landmark extracting unit, when it is determined that extracts the region outside landmark, extracting the area outside landmark information processing system according to claim 1. Positioning means for measuring the position of the terminal device and generating positioning accuracy information indicating positioning accuracy;
Determination means for determining whether or not to extract the out-of-region landmark based on the positioning accuracy information,
The landmark extracting unit, when it is determined that extracts the region outside landmark, extracting the area outside landmark information processing system according to claim 1. Positioning means capable of positioning the position of the terminal device by a plurality of methods having different positioning accuracy;
Determination means for determining whether or not to extract the out-of-region landmark based on a positioning method by the positioning means,
The landmark extracting unit, when it is determined that extracts the region outside landmark, extracting the area outside landmark information processing system according to claim 1. The information processing according to any one of claims 2 to 5 , wherein the landmark extraction unit preferentially extracts a landmark having no similar landmark in the predetermined area as the out-of-area landmark. system. Information receiving means for receiving position information indicating the position of the terminal device;
Landmark extraction means for extracting a landmark outside a predetermined area including the branch point as an out-of-area landmark when the position of the terminal device is in the vicinity of the branch point;
Guidance information generating means for generating guidance information about route guidance using at least the out-of-area landmark. A terminal device that communicates with a server,
Position acquisition means for acquiring position information indicating the position of the terminal device;
Route guidance means for obtaining guidance information on route guidance using at least an out-of-area landmark from the server and performing route guidance using the guidance information; and
The out-of-area landmark is a terminal apparatus that is located outside a predetermined area including the branch point when the terminal apparatus is located in the vicinity of the branch point. Position acquisition means for acquiring position information indicating the position of the terminal device;
Landmark extraction means for extracting a landmark outside a predetermined area including the branch point as an out-of-area landmark when the terminal device is located in the vicinity of the branch point;
Guidance information generating means for generating guidance information on route guidance using at least the out-of-region landmark;
An information processing apparatus comprising: route guidance means for performing route guidance using the guidance information. Obtaining position information indicating the position of the terminal device;
When the terminal device is located in the vicinity of a branch point, extracting a landmark outside the predetermined area including the branch point as an out-of-area landmark; and
Generating guidance information on route guidance using at least the out-of-region landmark;
Performing route guidance using the guidance information. Obtaining position information indicating the position of the terminal device;
When the terminal device is located in the vicinity of a branch point, extracting a landmark outside the predetermined area including the branch point as an out-of-area landmark; and
An information processing program for causing a computer to execute guidance information about route guidance using at least the out-of-region landmark.

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