JP2016038349A - Route guide device, route guide method, and route guide program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform proper guidance so as to coincide with the position of a user, in a case where the user (portable terminal) receives guidance of a guide point while moving.SOLUTION: A route guide device includes: acquisition means of acquiring, from a portable terminal, a current position and a moving speed of the portable terminal; calculation means of calculating a response time until guidance information reaches the portable terminal, on the basis of a processing time required for generation of the guidance information to the portable terminal; identification means of identifying a terminal position of the portable terminal after the response time, on the basis of the current position, the moving speed and the response time; and route guide means of executing route guide to the portable terminal, on the basis of the guidance information corresponding to the terminal position.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a route guidance device, a route guidance method, and a route guidance program.

  In recent years, navigation systems realized by mobile terminals such as smartphones have been widely used.

  As an example, in the case of adopting a client server type, the navigation system generates map data and transmits the generated map data to the mobile terminal. On the other hand, the mobile terminal displays map data received from the navigation system via a Web browser or an application.

  In addition, when a user inputs and transmits a departure point and a destination from a mobile terminal, the navigation system performs a route search on the map and then performs a “search route” or “guidance information” from the departure point to the destination. ”(Guidance, guidance voice, guidance map deformation map, etc.) and the like, and the generated route guidance data is transmitted to the portable terminal. On the other hand, the mobile terminal realizes route guidance (navigation) for the user based on the route guidance data received from the navigation system.

JP 2012-173223 A JP 2012-093148 A

  However, on the navigation system side, among the route guidance data, in particular, generating “guidance information” (guidance text and guidance voice, guidance map deformation map, etc.) is heavy and requires a certain amount of processing time. Further, when the communication state of the mobile terminal is not good, a certain amount of communication time is required until the route guidance data is received from the navigation system side to the mobile terminal. That is, there is a problem that a certain amount of time is required until the route guidance data is responded to the mobile terminal from the navigation system side.

  For this reason, when a user (pedestrian) receives guidance of a guide point while moving, there is a mismatch between the user's position and the guidance content due to the lime lag until the guidance information acquisition request and response are made ( There is a problem that misalignment) occurs.

  For example, it is assumed that the navigation system side requires 10 seconds of processing time and communication time to respond to guidance information of a certain guidance point. In this case, when the mobile terminal is moving at a speed of 1 m / sec (when the user is walking at a speed of 1 m / sec), the mobile terminal side is guided information at a point 10 m away from the request point. Receive. Therefore, although the current position of the mobile terminal is located 10 m away from the request point, the guidance content is 10 m before the current position.

  The present invention has been proposed in view of the above points, and the object of the present invention is to provide an appropriate information that matches the position of the user when the user (mobile terminal) receives guidance of the guide point while moving. There is a guidance.

  In order to solve the above-described problems, a route guidance device according to the present invention includes an acquisition unit that acquires a current position and a moving speed of a mobile terminal from a mobile terminal, and processing required for generating guidance information for the mobile terminal. The portable device after the response time is calculated based on the calculation means for calculating the response time until the guidance information reaches the mobile terminal based on the time, the current position, the moving speed, and the response time. Specific means for specifying the terminal position of the terminal, and route guidance means for executing route guidance for the portable terminal based on guidance information corresponding to the terminal position.

  According to the embodiment of the present invention, when a user (mobile terminal) receives guidance of a guide point while moving, appropriate guidance that matches the position of the user can be performed.

1 is a diagram illustrating an example of a route guidance system 100. FIG. It is a figure which shows the hardware structural example of the route guidance system. It is a figure which shows the software structural example of the route guidance server. It is a figure which shows a route guidance example. It is a figure which shows a route guidance example. It is a figure which shows the example of a screen of the portable terminal 2. FIG. It is a flowchart figure which shows a processing operation example.

  Hereinafter, preferred embodiments of the present invention will be described.

[System configuration]
(Network configuration)
FIG. 1 is a diagram illustrating an example of a route guidance system 100 according to the present embodiment. In the route guidance system 100, a route guidance server 1 and a mobile terminal 2 are connected via a network 3.

  The route guidance server 1 generates requested map data in response to a request from the mobile terminal 2, and transmits the generated map data to the mobile terminal 2. On the other hand, the mobile terminal 2 displays the map data received from the route guidance server 1 via a Web browser or an application. In addition, when the user inputs and transmits the departure point and the destination from the mobile terminal 2, the route guidance server 1 performs a route search on the map and then performs a “search route” or “ Route guidance data such as “guidance information” (guide text and guidance voice, deformation map of guidance points, etc.) is generated, and the generated route guidance data is transmitted to the mobile terminal.

  The portable terminal 2 is a portable information terminal typified by a smartphone or a tablet terminal. Carried by a user (pedestrian). The portable terminal 2 has a general-purpose web browser and navigation application in advance. Based on the route guidance data received from the route guidance server 1, the mobile terminal 2 displays a search route based on the “search route” on the map via a web browser or an application screen, Execute guidance based on "information".

  Here, the “guidance information” is information for correctly guiding the user at each guidance point, and includes information such as guidance text and guidance voice, and a deformation map of the guidance point. As an example of the guidance sentence, there is text data such as “Turn left at an intersection with a convenience store” displayed on the screen of the portable terminal 2 when the user approaches the guidance point. Further, as an example of the guidance voice, there is voice data such as “turning left at an intersection with a convenience store soon” output from the mobile terminal 2 when the user approaches the guidance point. Further, as an example of the deformation map of the guidance point, there is image data (a diagram for guiding a left turn at an intersection with a convenience store) displayed on the screen of the mobile terminal 2 when the user approaches the guidance point.

  The network 3 is a wireless communication network. For example, a telephone line network, WiFi (registered trademark), and the Internet are included.

(Hardware configuration)
FIG. 2 is a diagram illustrating a hardware configuration example of the route guidance system 100 according to the present embodiment. As shown in FIG. 2, the route guidance server 1 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, and an HDD (Hard Disk Drive) 14 as hardware configurations. , Input device 15, display device 16, and communication device 17.

  The CPU 11 executes various programs and performs arithmetic processing. The ROM 12 stores a program necessary for startup. The RAM 13 is a work area for temporarily storing processing performed by the CPU 11 and storing data. The HDD 14 stores various data and programs. The input device 15 is, for example, a keyboard or a mouse. The display device 16 is a display, and displays, for example, a navigation route. The communication device 17 communicates with other devices via the network 3.

  The mobile terminal 2 further includes a voice input / output device 18 and a GPS receiver 19 in addition to the configuration of the route guidance server 1.

  The voice input / output device 18 is a device that performs voice input / output. For example, voice data for correctly guiding a user is output. The GPS receiver 19 receives a current position used for navigation from a GPS satellite.

  The input device 15 of the mobile terminal 2 can be realized by a touch panel that can detect tap coordinates (touch coordinates) on the screen instead of a keyboard and a mouse. In this case, the input operation is realized by a touch panel on the screen, a software key controlled by a program, and the like.

(Software configuration)
FIG. 3 is a diagram illustrating a software configuration example of the route guidance server 1 according to the present embodiment. First, the route guidance server 1 includes a processing time calculation unit 101, a storage unit 102, a terminal information acquisition unit 103, a response time calculation unit 104, a terminal location specifying unit 105, and a route guidance unit 106 as main functional units.

  The processing time calculation unit 101 calculates the processing time required to generate “guidance information” (guidance text and guidance voice, deformation point deformation map, etc.). The processing time calculated at regular timing is stored and updated in the storage unit 102 one by one. For example, the processing time can be calculated on the basis of information such as the usage rate of the CPU 11 and the RAM 13 of the route guidance server 1 or the total load degree (congestion degree) of the server. The higher the usage rate and the higher the overall load level of the server, the longer the processing time.

  The storage unit 102 stores information used for route guidance including map data and guidance information. The processing time calculated by the processing time calculation unit 101 is also stored and updated one by one.

  The terminal information acquisition unit 103 acquires information on the current position, moving speed, and communication speed of the mobile terminal 2 from the mobile terminal 2 as terminal information.

  The response time calculation unit 104 calculates a response time until the guidance information reaches the mobile terminal 2 based on information on the processing time of the storage unit 102 and the communication speed acquired from the mobile terminal 2. Before the route guidance server 1 provides the guidance information to the mobile terminal 2, it takes a processing time to generate the guidance information, and the generated guidance information reaches the mobile terminal 2 from the route guidance server 1. Communication time is required.

  The terminal position specifying unit 105 specifies the terminal position of the mobile terminal 2 after the response time based on the current position and moving speed acquired from the mobile terminal 2 and the response time calculated by the response time calculation unit 104. The terminal position of the mobile terminal 2 after the response time may be specified by, for example, position coordinates, or may be specified by a distance such as how many meters away from the current position.

  The route guidance unit 106 determines whether there is a guidance point at the terminal position of the mobile terminal 2 specified by the terminal position specification unit 105 (the guidance point exists in the vicinity of the destination of the terminal position of the mobile terminal 2). Whether or not). When there is a guidance point, the route guide unit 106 generates guidance information corresponding to the guidance point, and executes route guidance for the mobile terminal 2 based on the generated guidance information. Specifically, the generated guidance information is transmitted to the mobile terminal 2, and the mobile terminal 2 performs guidance at the guidance point based on the received guidance information.

  Next, the mobile terminal 2 includes a position information acquisition unit 201, a movement speed acquisition unit 202, and a communication speed acquisition unit 203 as main function units.

The position information acquisition unit 201 acquires the current position of the mobile terminal 2. The current position is, for example,
You may receive from a GPS satellite by the GPS receiver 19, and you may acquire using an acceleration sensor (not shown), a gyro sensor (not shown), etc. by autonomous navigation.

The movement speed acquisition unit 202 acquires the movement speed of the mobile terminal 2. The moving speed is, for example,
It may be calculated / acquired based on the current position received from the GPS satellite by the GPS receiver 19, or may be calculated / acquired using an acceleration sensor or the like by autonomous navigation.

  The communication speed acquisition unit 203 acquires the communication speed of the mobile terminal 2. The communication speed may be calculated and acquired based on the communication information of the communication device 17, for example.

  Note that the calculation / acquisition method of the current position, moving speed, and communication speed is merely an example, and other acquisition methods may be adopted as long as these pieces of information are acquired.

  Each functional unit is realized by a computer program executed on hardware resources such as the CPU 11, the ROM 12, and the RAM 13 of the computer constituting the route guidance server 1 or the portable terminal 2. These functional units may be read as “means”, “module”, “unit”, or “circuit”.

[Route guidance example]
Next, an example of route guidance according to the present embodiment will be described with specific examples.

  4 and 5 are diagrams showing examples of route guidance according to the present embodiment.

  As a premise for explaining this case, the user performs input transmission of the departure place and the destination on the mobile terminal 2, and the “search route” from the departure place to the destination is displayed on the map. Yes. The user follows the search route and moves on foot. When the user approaches a guidance point (for example, a branch point) during movement, guidance information corresponding to the guidance point is sequentially acquired from the route guidance server 1 and output.

  As shown in FIGS. 4 and 5, the user is first walking at point A. The mobile terminal 2 sequentially transmits the guidance information acquisition request to the route guidance server 1 and transmits the guidance information acquisition request to the route guidance server 1 even at the point A. The guidance information acquisition request includes information on the current position, moving speed, and communication speed of the mobile terminal 2 as terminal information to be provided from the terminal side.

  When the route guidance server 1 receives the guidance information acquisition request (current position, moving speed, communication speed information) of the mobile terminal 2, the processing time of the storage unit 102 and the communication speed (or communication time) acquired from the mobile terminal 2 are received. ), The response time until the guidance information reaches the mobile terminal 2 is calculated. Here, for example, the processing time of the storage unit 102 is 9 seconds, the communication time based on the communication speed is 1 second, and the response time is 10 seconds in total.

  Next, the route guidance server 1 specifies the terminal position of the mobile terminal 2 after the response time based on the current position and moving speed acquired from the mobile terminal 2 and the response time calculated by the response time calculation unit 104. To do. Assuming that the moving speed (walking speed) of the mobile terminal 2 is 1 m / second and the response time is 10 seconds, the terminal position of the mobile terminal 2 after the response time is point B that is 10 meters ahead of the current position on the search route. It becomes.

  When the terminal position of the mobile terminal 2 after the response time is identified as the B point, the route guidance server 1 determines whether the B point is within the vicinity of the guidance point (for example, a predetermined αm). Whether it is within the vicinity of the guidance point can be determined, for example, based on the terminal position and presence / absence of guidance information associated with the vicinity. In the case of FIGS. 4 and 5, a predetermined αm before the left turn point is suitable as a guide point for quickly navigating the left turn point C, which is a guide point, using voice, guidance text, or the like. Therefore, the route guidance server 1 determines that the point B is within the vicinity of the front of the guidance point, generates guidance information for the guidance point (requires a processing time of 9 seconds), and transmits the guidance information for the guidance point to the mobile terminal 2. (1 second communication time is required).

  When the portable terminal 2 receives the guidance information of the guidance point at the timing of passing the point B (a predetermined αm before the left turn point), the guidance is performed based on the “guidance information” of the guidance point based on the received guidance information. To do.

  FIG. 6 is a diagram illustrating a screen example of the mobile terminal 2 according to the present embodiment. As shown in FIG. 6, a guidance message such as “Turn left at an intersection with a convenience store” displayed on the screen of the mobile terminal 2, and “Turn left at an intersection with a convenience store soon” output from the mobile terminal 2. ”Is output. In addition, a deformation map of a guide point (a diagram for guiding a left turn at an intersection with a convenience store) or the like may be output.

  Conventionally, for example, when the route guidance server 1 responds with guidance information based on the current position information of the point A, since the user (pedestrian) is moving, if the response time requires time, For example, although the person has already moved to the point B, the guidance information associated with the point A may be output. In this way, when a user (pedestrian) is guided by a guidance point while moving, there is a discrepancy between the position of the user and the content of the guidance due to the lime lag until a request for obtaining guidance information and a response are made. There is a problem that (displacement) occurs.

  Therefore, in the present embodiment, for example, when the route guidance server 1 responds to the guidance information based on the guidance information acquisition request received at the point A, the user (pedestrian) is moving, and Considering that it takes time to respond to the guidance information, guidance information corresponding to point B (the terminal position of the mobile terminal 2 after the response time) is output. Thereby, when a user (pedestrian) receives guidance of a guidance point while moving using the mobile terminal 2, the route guidance server 1 performs appropriate guidance that matches the current position (position after movement) of the user. Information is provided and the user (pedestrian) can receive an appropriate guidance that matches the location of the user.

[Information processing]
FIG. 7 is a flowchart showing an example of the processing operation according to the present embodiment. The route guidance of the route guidance server 1 according to the present embodiment will be described.

  Also, it is assumed that the user is searching for a “search route” from the departure point on the map to the destination in the portable terminal 2.

  S1: First, the terminal information acquisition unit 103 determines whether or not a guidance information acquisition request (information on the current position, moving speed, and communication speed) of the mobile terminal 2 has been received.

  S2: The response time calculation unit 104 acquires the processing time from the storage unit 102. The storage unit 102 stores and updates the processing time required for generating “guidance information” (guidance text and guidance voice, guidance point deformation map, etc.) calculated by the processing time calculation unit 101 one by one.

  S3: The response time calculation unit 104 responds until the guidance information arrives at the mobile terminal 2 based on the information on the processing time of the storage unit 102 acquired in S2 and the communication speed acquired from the mobile terminal 2 in S1. Calculate time.

  Since “guidance information” has a substantially constant data amount, the communication time for communicating “guidance information” can be calculated from the communication speed. Therefore, for example, the response time calculation unit 104 can calculate the response time as 10 seconds from the processing time 9 seconds of the storage unit 102 acquired in S2 and the communication time 1 second.

  Also, for example, when the communication time is considerably small, the response time calculation unit 104 does not consider the communication speed, and the response time calculation unit 104 receives guidance information from the portable terminal 2 based on only the processing time information stored in the storage unit 102 acquired in S2. It is also possible to calculate the response time until it reaches.

  S4: The terminal position specifying unit 105 determines the mobile terminal 2 after the response time based on the current position and moving speed acquired from the mobile terminal 2 in S1 and the response time calculated by the response time calculation unit 104 in S3. Identify the terminal location.

  For example, if the moving speed (walking speed) of the mobile terminal 2 is 1 m / second and the response time is 10 seconds, the terminal position of the mobile terminal 2 after the response time has advanced 10 m from the current position on the search route. It becomes B point (refer FIG.4 and FIG.5).

  S5: The route guidance unit 106 determines whether the terminal position of the mobile terminal 2 specified by the terminal position specifying unit 105 in S4 is a guide point. Whether or not it is a guidance point can be determined, for example, by the presence or absence of guidance information associated with the terminal position. When determining whether or not the terminal position of the mobile terminal 2 is a guide point, not only when the terminal position of the mobile terminal 2 completely matches the position of the guide point, but also in the vicinity of the destination of the terminal position of the mobile terminal 2 ( For example, it includes determining whether or not there is a guidance point at a predetermined αm ahead. That is, when navigating the guidance point by voice or guidance text, it is desirable to navigate the guidance point early at some point before that.

  On the other hand, when the terminal position of the mobile terminal 2 is not a guidance point, there is no information that should specifically guide the user at that point.

  S6: When it is determined in S5 that the terminal position of the portable terminal 2 is a guidance point, the route guidance unit 106 generates guidance information corresponding to the guidance point (for example, processing time is 9 seconds) and generates the guidance information. Guide point guidance information is transmitted to the mobile terminal 2 (for example, a communication time of 1 second is required).

  On the other hand, when the portable terminal 2 receives the guidance information of the guidance point, the portable terminal 2 performs guidance at the guidance point based on the received guidance information. Here, the guidance information is received in the portable terminal 2 at a timing 10 seconds after the guidance information acquisition request of the portable terminal 2 is received.

  S7: The route guidance unit 106 determines whether the terminal position of the mobile terminal 2 identified in S4 has reached the destination. When the terminal position of the mobile terminal 2 reaches the destination, the process proceeds to END to end the route guidance. In addition, when the route guidance is canceled by the user, the process may proceed to END. On the other hand, when the terminal position of the portable terminal 2 does not reach the destination, the process returns to S1 and the same processing is executed until the terminal position of the portable terminal 2 reaches the destination.

[Summary]
As mentioned above, according to the route guidance system 100 concerning this embodiment, there can exist the following effects, for example.

  When a user (pedestrian) receives guidance of a guidance point while moving using the mobile terminal 2, the route guidance server 1 provides appropriate guidance information that matches the current position (position after movement) of the user. The user (pedestrian) can receive an appropriate guidance that matches the position of the user.

  In addition, although the moving speed of the mobile terminal 2 varies depending on the walking speed of the user, according to the present embodiment, the terminal position of the mobile terminal 2 after the response time is determined using the moving speed acquired from the mobile terminal 2. Identify. For this reason, it is possible to receive an appropriate guidance that matches the position of the user regardless of the walking speed of the user.

  In addition, according to the present embodiment, when a user approaches a guidance point (for example, a branch point), guidance information corresponding to the guidance point is sequentially acquired from the route guidance server 1 and output. Therefore, at the time of the first route search, the route guidance server 1 only needs to transmit only the information on the “search route” on the map to the portable terminal 2, and the user starts route guidance quickly without waiting. be able to. On the other hand, when searching for a route, there is a method in which guidance information for all guide points on the searched route is received from the route guide server 1 together with the “search route” on the map. In the case of this method, a very long processing time is required until the guidance information for all the guidance points is generated on the route guidance server 1 side. For this reason, the user cannot start route guidance quickly, and is kept waiting.

  The present invention has been described with reference to preferred embodiments of the present invention. While the invention has been described with reference to specific embodiments, various modifications and changes may be made to the embodiments without departing from the broad spirit and scope of the invention as defined in the claims. Obviously you can. In other words, the present invention should not be construed as being limited by the details of the specific examples and the accompanying drawings.

1 route guidance server 2 portable terminal 3 network 11 CPU
12 ROM
13 RAM
14 HDD
DESCRIPTION OF SYMBOLS 15 Input apparatus 16 Display apparatus 17 Communication apparatus 18 Voice input / output apparatus 19 GPS receiving apparatus 100 Route guidance system 101 Processing time calculation part 102 Storage part 103 Terminal information acquisition part 104 Response time calculation part 105 Terminal position specific | specification part 106 Route guidance part 201 Position information acquisition unit 202 Movement speed acquisition unit 203 Communication speed acquisition unit

Claims (6)

Acquisition means for acquiring the current position of the mobile terminal and the moving speed from the mobile terminal;
Calculation means for calculating a response time until the guide information reaches the mobile terminal based on a processing time required for generating the guide information for the mobile terminal;
Identification means for identifying the terminal position of the mobile terminal after the response time based on the current position, the moving speed, and the response time;
Route guidance means for performing route guidance for the mobile terminal based on the guidance information corresponding to the terminal position;
A route guidance device comprising: The acquisition means includes
From the mobile terminal, further obtain the communication speed of the mobile terminal,
The calculating means includes
Further, based on the communication speed, calculating a response time until the guidance information reaches the mobile terminal,
The route guidance apparatus according to claim 1. The route guidance means
Determining whether or not there is guidance information corresponding to the terminal position, and if guidance information is present, executing route guidance for the mobile terminal;
The route guidance device according to claim 1 or 2, characterized in that. The portable terminal is a portable terminal carried by a pedestrian;
The route guidance device according to any one of claims 1 to 3, wherein The route guidance device
An acquisition procedure for acquiring the current position of the mobile terminal and the moving speed from the mobile terminal;
A calculation procedure for calculating a response time until the guide information reaches the mobile terminal based on a processing time required for generating the guide information for the mobile terminal;
A specifying procedure for specifying a terminal position of the mobile terminal after the response time based on the current position, the moving speed, and the response time;
A route guidance procedure for performing route guidance for the mobile terminal based on the guidance information corresponding to the terminal position;
The route guidance method characterized by performing. On the computer,
Acquisition means for acquiring the current position of the mobile terminal and the moving speed from the mobile terminal;
Calculation means for calculating a response time until the guide information reaches the mobile terminal based on a processing time required for generating the guide information for the mobile terminal;
Identification means for identifying the terminal position of the mobile terminal after the response time based on the current position, the moving speed, and the response time;
The route guidance program for functioning as a route guidance means to perform the route guidance with respect to the said portable terminal based on the guidance information corresponding to the said terminal position.

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