JP2011038775A - Route search system, route search server, mobile terminal device, recovery method from power-saving, and navigation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To resume an application program by receiving a resumption notification from a route search server after ending the application program by a prescribed suspension condition. <P>SOLUTION: When a suspension decision means 27 determines that the suspension condition is established on the basis of the information of a guidance route, a resumption request means 24 transmits a resumption notification request including route guidance resumption information to a route search server 30. A notification criterion calculation means 37 calculates a notification criterion for resuming the route guidance. When the route search server receives the resumption notification request from a mobile terminal device, once a notification decision means 34 determines that the resumption condition of the route guidance is established on the basis of the notification criterion, a resumption notification means 38 transmits a guidance resumption notification including the route guidance resumption information to the mobile terminal device 20 via a network. The mobile terminal device 20 thereby re-starts the application, and resumes the route guidance. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a route search system that includes a mobile terminal device connected via a network and a route search server, and searches for a route that satisfies a route search condition set by the mobile terminal device and performs route guidance. In particular, the mobile terminal device determines the stop condition of the navigation application program, ends the navigation application program, requests the route search server to notify the restart information, and the route search server uses the notification criteria based on the information on the guide route. A route search system that calculates a condition and transmits a restart notification to the mobile terminal device via the network when the notification standard condition is satisfied, and the mobile terminal device restarts the navigation application program based on the notification. It relates to the device.

  2. Description of the Related Art Conventionally, navigation devices and route search systems that search for a route from a desired departure point to a destination by using map data and road data and guide a user are known. As a search system, a car navigation device that is installed in an automobile and guides the route to the driver, a mobile phone is used as a navigation terminal, sends a route search request to the route search server, receives the result, and receives route guidance A communication type route search system has been put into practical use.

  In particular, a communication type route search system is a system that uses a mobile terminal such as a mobile phone as a navigation terminal, and is also used as a route search system for pedestrians. As a route search system for pedestrians, it is preferable to add a route guidance function including transportation. In addition to searching and guidance for walking routes, the route search server stores route information and transportation time data for transportation. There is also a route search system having a function of guiding a route (boarding candidate train) from a desired departure station to a desired destination station. There is also a traffic guidance system that receives and displays information such as routes, timetables of transportation facilities, and trains that can be boarded from an information distribution server without searching for walking routes.

  A general navigation device, a route search device used in a communication route search system, and a route search method are disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-165681 below. In this route search system, the information of the departure point and the destination is sent from the portable navigation terminal to the information distribution server, and the information distribution server searches and guides the route that matches the search condition from the data of the road network and the traffic network. It is configured. As the search condition, there are means for moving from the departure place to the destination, for example, walking, automobile, combined use of railroad and walking, and the route is searched as one of the search conditions.

  The information distribution server has roads (routes) of map data as nodes and nodes as the positions of inflection points, links connecting the nodes as links, and cost information (distance and required time) of all links as a database. ing. Then, the information distribution server sequentially searches for a link from the departure node to the destination node with reference to the database, and traces the node and link with the smallest cost information of the link as a guide route. The shortest route can be guided to the portable navigation terminal. As such a route search method, a method called label determination method or Dijkstra method is used. Patent Document 1 also discloses a route search method using this Dijkstra method.

  A route search system that searches for routes that use transportation is a database of operation time data of each transportation based on route search conditions such as departure date, departure location, destination, arrival time specified by the user. It has a time database and data that makes the traffic network a database based on this. Then, referring to these databases, each available means of transportation (individual trains and route buses) connecting the departure point and destination, including connections (transfers), is sequentially traced to meet the route search conditions. It is configured to present one or a plurality of candidates for a guide route (departure station, destination station, route, train, etc.). As route search conditions, it is generally possible to specify conditions such as required time, number of transfers, and fares.

  In addition, as a system for conducting searches and guidance related to transportation facilities, a terminal device such as a mobile phone is connected to an information distribution server for guiding route information and timetable information of transportation facilities, and a desired departure station, departure time, destination station, etc. There is also provided a guidance system that can specify information, receive information on routes, trains, trains and other transportation means that can be boarded, and display them on a terminal device. In general, when such use is performed from a terminal device, address information such as a URL (Uniform Resource Locator) or a domain name for specifying a location where information to be downloaded exists is input to the terminal device and specified by the address. The information distribution server (information site) is accessed to download desired information.

  Route search data in route search systems that use transportation systems, route guidance systems that provide route guidance, etc., are the same as road network data in in-vehicle route search systems and pedestrian route search systems. In addition to data obtained by networking stations as bidirectional links, the operation time and required time of each link are added as link cost data for each means of transportation operated on each traffic route. Furthermore, there is a system in which fare data is added and the fare of the searched guide route is guided together.

  Therefore, the guidance route data distributed to the terminal device includes a route search condition specified by the user, such as a route route from the departure point to the destination, and buses, trains, trains, and times that guide the ride, and the operation. A timetable or a so-called station pasted timetable posted at a station is processed as it is or into a format such as display data that can be displayed on a necessary part, and distributed to the terminal device. The terminal device can check the route and the transportation means to be boarded by displaying the guidance route data, the operation timetable, or the station pasted timetable.

  In order to receive such a route guidance service, an application program for a navigation service is installed in the mobile terminal device, and by starting this application program, a route search condition is set, It is possible to receive route guidance according to the guidance route information received from the search server. By the way, depending on the route for which guidance is received, it may not be necessary to receive route guidance for a certain period of time. For example, it is not necessary to receive route guidance while driving on a straight road that does not require a change in the direction of travel, such as a right turn or a left turn, or while riding a train specified in the guidance route.

  In such a case, it is preferable to suppress the power consumption of the portable terminal device. For example, in the following Patent Document 2 (Japanese Patent Laid-Open No. 9-5102), the navigation control is less than the normal control mode. A vehicle-mounted navigation device is disclosed that switches to the power-saving mode and then returns to the normal control mode from the power-saving mode when approaching a point where route guidance is required next or when the route deviates from the planned guidance route. Has been.

  In the in-vehicle navigation device disclosed in Patent Document 2, when it is determined that the destination of the traveling route is “road” traveling and guidance is not necessary, ”Is displayed, or a sound is output, then a signal is sent to the power-saving power on / off unit, the power supply of each unit of the energy-saving unit is turned off, and then the destination, intersection, etc. are approached Alternatively, when the guidance unit detects that the vehicle position has deviated from the guidance route, power is supplied again, and display by the CRT display device and voice guidance by the speaker are resumed.

JP 2001-165681 A (FIGS. 1 and 2) Japanese Patent Laid-Open No. 9-5102 (FIG. 1)

  However, the in-vehicle navigation device disclosed in Patent Document 2 simply divides navigation control into a normal control mode and a power saving mode in the case where route guidance is not required. The power is supplied only to the wear part to reduce power consumption, and a certain power saving effect can be expected, but the application program itself remains activated, so power is required to run the application program. Therefore, there arises a problem that the effect of power saving cannot be fully exhibited.

  For example, there is no need to receive route guidance while traveling on an expressway, and there is no need to receive route guidance while traveling on a train while using transportation. Switching to the power saving mode during such a period, for example, if the application program itself continues to operate even if the power supply to the display unit or the like is turned off, it is detected that the user has deviated from the guidance route, or In order to detect that the next guide point is approached, it is necessary to measure the current position at predetermined time intervals, and there is a problem that sufficient power saving effect cannot be exhibited. In addition, since the positioning result is transmitted to the server, there is a problem that the processing load of the server is increased and the communication load is increased.

  In addition, there is no need to receive route guidance while riding the train specified in the guidance route, and when the user terminates the navigation application program when getting on the train to reduce power consumption. There is a problem that it is necessary to restart the navigation application program and resume navigation at the point where the user gets off the train.

  The inventor of the present application has conducted various studies to solve the above problems, and as a result, the mobile terminal device determines the stop condition of the navigation application program, terminates the navigation application program, and notifies the route search server of the restart information. The route search server calculates a notification criterion condition based on the information of the guide route, and when the notification criterion condition is satisfied, transmits a restart notification to the portable terminal device via the network, and the portable terminal device The present invention has been completed by conceiving that the above problems can be solved by restarting the navigation application program based on the above.

  That is, the present invention has an object to solve the above-described problems, and includes a mobile terminal device connected via a network and a route search server, and searches for a route that satisfies a route search condition set by the mobile terminal device. Provided is a route search system and a navigation device in which an application program is terminated by a predetermined stop condition and the application program can be restarted by receiving a restart notification from a route search server in a route search system that performs route guidance It is for the purpose.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
In a route search system that includes a mobile terminal device connected via a network and a route search server, and performs route guidance by searching for a route that satisfies a route search condition set by the mobile terminal device,
The portable terminal device is a portable terminal device that activates an application program for navigation and performs route guidance based on information on a guidance route searched by a route search server, and stops for terminating the application program A determination means and a notification request means, and when the stop determination means determines that a stop condition has been established based on the information on the guidance route, the notification request means restarts route guidance to the route search server. Send a resume notification request that includes route guidance resume information,
The route search system includes a notification criterion calculation unit that calculates a notification criterion for resuming route guidance in the portable terminal device, and the notification criterion calculation unit notifies based on information on a guidance route of the corresponding portable terminal device. Calculate the criteria,
The route search server includes a notification determination unit and a restart notification unit, and when receiving a restart notification request from the mobile terminal device, the notification determination unit determines whether a route is based on the notification criterion calculated by the notification criterion calculation unit. When it is determined that the guidance resumption condition is satisfied, the resumption notification means transmits a guidance resumption notification including route guidance resumption information to the mobile terminal device via the network,
The portable terminal device restarts the route guidance by restarting the application program based on the guidance restart notification received from the route search server.

  The invention according to claim 2 of the present application is the route search system according to claim 1, wherein the stop determination unit is configured to determine whether the route travels for a predetermined distance or a required time based on the information on the guide route. In the case where there is no change, the vehicle travels along the road and does not require route guidance, it is determined that the stop condition is satisfied.

  The invention according to claim 3 of the present application is the route search system according to claim 1 or 2, wherein the notification criterion calculation means determines a time at which route guidance should be resumed based on the information on the guide route. It is calculated as a notification criterion, and the notification determination means determines whether or not a guidance resumption notification can be transmitted by comparing the current time with the time calculated as the notification criterion.

  The invention according to claim 4 of the present application is the route search system according to claim 1 or 2, wherein the notification criterion calculation means determines a place where the route guidance should be resumed based on the information on the guide route. It is calculated as a notification criterion, and the notification determination unit determines whether or not to transmit a guidance resumption notification by comparing the position information received from the portable terminal device with the position information calculated as the notification criterion.

  The invention according to claim 5 of the present application is the route search system according to claim 1, wherein the stop determination means determines that the transportation facility is included when a route section using a transportation facility is included in the guide route. The route section to be used is determined as a section where the stop condition is satisfied.

  The invention according to claim 6 of the present application is the route search system according to claim 5, wherein the notification criterion calculation means calculates, based on the information of the guidance route, a time at which route guidance should be resumed as a notification criterion. The time is at least immediately before the starting point of the walking route section and calculates the time to get off the transportation means of the transportation means, and the notification determining means calculates the current time and the time calculated as the notification reference. In comparison, it is determined whether or not a guidance resumption notification can be transmitted.

The invention according to claim 7 of the present invention, in the route search system according to claim 5, wherein the notification criteria calculation means, based on the information of the guidance route, and a place to resume the route guidance, the A location indicating a station that gets off the traffic means during the traffic period is calculated as a notification criterion, and the notification determination means guides by comparing the current position information received from the mobile terminal device with the location information of the location calculated as the notification criterion. It is characterized by determining whether or not a restart notification can be transmitted.

  Further, the invention according to claim 8 of the present application is that, in the route search system according to claim 1, the route guidance information received from the route search server does not need route guidance in a section where route guidance is unnecessary. Flag information indicating that the stop condition is satisfied is determined based on the flag information.

  The invention according to claim 9 of the present application is the route search system according to claim 8, wherein the route search system includes storage means for storing a movement history of the mobile terminal device, and the number of movements is determined from the movement history. More than the number of route sections are determined as route sections that do not require route guidance, and flag information indicating that route guidance is unnecessary is added to the route sections.

The invention according to claim 10 of the present application is
In a route search server that is connected to a mobile terminal device via a network and performs route guidance by searching for a route that satisfies the route search conditions set by the mobile terminal device,
The portable terminal device is a portable terminal device that activates an application program for navigation and performs route guidance based on information on a guidance route searched by a route search server, and stops for terminating the application program A determination means and a notification request means, and when the stop determination means determines that a stop condition has been established based on the information on the guidance route, the notification request means restarts route guidance to the route search server. A mobile terminal device that transmits a resumption notification request including route guidance resumption information, restarts the application program based on the guidance resumption notification received from the route search server, and resumes route guidance.
The route search server includes a notification criterion calculation unit that calculates a notification criterion for resuming route guidance in the mobile terminal device, a notification determination unit, and a restart notification unit.
When the route search server receives a restart notification request from the portable terminal device, the notification criterion calculation unit calculates a notification criterion based on information on a guidance route of the corresponding portable terminal device, and the notification determination unit When it is determined that the route guidance restart condition is satisfied based on the notification criterion calculated by the notification criterion calculation unit, the restart notification unit sends a guidance restart notification including route guidance restart information to the mobile terminal device via the network. A route search server characterized by transmitting.

The invention according to claim 11 of the present application is the route search server according to claim 10, wherein the mobile terminal device determines that the route is a predetermined distance or required based on the information on the guide route. A portable terminal device that determines whether or not a stop condition is satisfied when there is no change in the direction of travel for a period of time and it does not require route guidance.
The notification criterion calculation means calculates a time at which route guidance should be resumed as a notification criterion based on the information on the guidance route, and the notification determination means compares the current time with the time calculated as the notification criterion. And determining whether or not to transmit the guidance resumption notification.

The invention according to claim 12 of the present application is the route search server according to claim 10, wherein the portable terminal device is configured such that the route is a predetermined distance or a required time based on the information on the guide route. Is a mobile terminal device that determines whether the stop condition is satisfied when there is no change in the direction of travel and the route travels and does not require route guidance,
The notification criterion calculation means calculates, based on the guidance route information, a place where route guidance should be resumed as a notification reference, and the notification determination means uses the positional information received from the portable terminal device and the notification reference as the notification reference. Comparing with the calculated position information, it is determined whether or not a guidance resumption notification can be transmitted.

Further, the invention according to claim 13 of the present application is the route search server according to claim 10, wherein the portable terminal device is configured such that the stop determination unit includes the route section using a transportation facility in the guide route. A mobile terminal device that determines a route section that uses transportation as a section where a stop condition is satisfied,
The notification criterion calculation means calculates, based on the information on the guidance route, a time at which route guidance should be resumed as a notification criterion, which is at least immediately before the walking route section start point, The time to get off the transportation means is calculated, and the notification determining means compares the current time with the time calculated as the notification reference to determine whether or not to transmit the guidance resumption notification.

Further, the invention according to claim 14 of the present application is the route search server according to claim 13, wherein the portable terminal device is configured such that the stop determination unit includes a route section using a transportation facility in the guide route. A mobile terminal device that determines a route section that uses transportation as a section where a stop condition is satisfied,
The notification criterion calculation means calculates, based on the information on the guide route, as a place where route guidance should be resumed, as a notification criterion, a place indicating a station where the traffic means gets off during the traffic period, and the notification determination means The present position information received from the portable terminal device is compared with the position information of the place calculated as a notification criterion to determine whether or not to transmit a guidance resumption notification.

The invention according to claim 15 of the present application is the route search server according to claim 10, wherein the mobile terminal device determines whether the stop condition is based on flag information added to the information on the guide route. A portable terminal device for determining establishment,
Flag information indicating that route guidance is not necessary is added to a section where route guidance is not necessary, to the guidance route information transmitted to the mobile terminal device.

  The invention according to claim 16 of the present application is the route search server according to claim 15, wherein the route search server includes storage means for storing a movement history of the mobile terminal device, and the number of movements is determined from the movement history. More than the number of route sections is determined as a route section that does not require route guidance, and flag information indicating that route guidance is unnecessary is added to the route section.

The invention according to claim 17 of the present application is
In a mobile terminal device connected via a network to a route search server that searches for a route that satisfies the route search condition set by the mobile terminal device and performs route guidance,
The route search server includes a notification determination unit and a restart notification unit, and when receiving a restart notification request from the mobile terminal device, the notification determination unit is configured to provide route guidance based on the notification criterion calculated by the notification criterion calculation unit. If it is determined that the resumption condition is satisfied, the resumption notification means is a route search server that transmits a guidance resumption notification including route guidance resumption information to the portable terminal device via a network,
The portable terminal device is a portable terminal device that activates an application program for navigation and performs route guidance based on information on a guidance route searched by a route search server, and stops for terminating the application program A determination unit, a notification request unit, and a notification criterion calculation unit that calculates a notification criterion for resuming route guidance in the mobile terminal device,
When it is determined that the stop condition is satisfied based on the information on the guidance route, the notification criterion calculation unit calculates a notification criterion based on the information on the guidance route of the corresponding mobile terminal device, and the notification The requesting unit transmits a restart notification request including route guidance resumption information for resuming route guidance to the route search server, and the notification criterion calculated by the notification criterion calculation unit, and the guidance restart notification received from the route search server. And restarting the route guidance by restarting the application program.

  According to an eighteenth aspect of the present invention, in the portable terminal device according to the seventeenth aspect, the stop determination unit is configured to determine whether the route travels for a predetermined distance or a required time based on the information on the guide route. In the case where there is no change, the vehicle travels along the road and does not require route guidance, it is determined that the stop condition is satisfied.

  The invention according to claim 19 of the present application is the portable terminal device according to claim 17 or claim 18, wherein the notification criterion calculation means determines a time at which route guidance should be resumed based on the information on the guide route. It is calculated as a notification criterion, and the notification determination means determines whether or not a guidance resumption notification can be transmitted by comparing the current time with the time calculated as the notification criterion.

  The invention according to claim 20 of the present application is the portable terminal device according to claim 17 or claim 18, wherein the notification criterion calculation means determines a place where route guidance should be resumed based on the information on the guide route. It is calculated as a notification criterion, and the notification determination unit determines whether or not to transmit a guidance resumption notification by comparing the position information received from the portable terminal device with the position information calculated as the notification criterion.

  Further, the invention according to claim 21 of the present application is the portable terminal device according to claim 17, wherein the stop determination means determines that the transportation facility is included when a route section using a transportation facility is included in the guide route. The route section to be used is determined as a section where the stop condition is satisfied.

  According to a twenty-second aspect of the present invention, in the mobile terminal device according to the twenty-first aspect, the notification criterion calculating means calculates a time at which route guidance should be resumed as a notification criterion based on the information on the guidance route. The time is at least immediately before the starting point of the walking route section and calculates the time to get off the transportation means of the transportation means, and the notification determining means calculates the current time and the time calculated as the notification reference. In comparison, it is determined whether or not a guidance resumption notification can be transmitted.

  The invention according to claim 23 of the present application is the mobile terminal device according to claim 21, wherein the notification criterion calculation means sets the route of traffic as a place where route guidance should be resumed based on the information of the guide route. The location indicating the station to get off the traffic means is calculated as a notification criterion, and the notification determination unit compares the current location information received from the mobile terminal device with the location information of the location calculated as the notification criterion, and a guidance resumption notification It is characterized by determining whether or not transmission is possible.

  Further, in the invention according to claim 24 of the present application, in the mobile terminal device according to claim 17, the route guidance information received from the route search server does not need route guidance in a section where route guidance is unnecessary. Flag information indicating that the stop condition is satisfied is determined based on the flag information.

  The invention according to claim 25 of the present application is the portable terminal device according to claim 24, wherein the route search server includes storage means for storing a movement history of the portable terminal device, and the number of movements is determined from the movement history. The route section more than the number of times is determined as a route section that does not require route guidance, flag information indicating that route guidance is unnecessary is added to the route section, and the stop determination unit is configured to stop conditions based on the flag information. It is characterized in that the establishment of

The invention according to claim 26 of the present application is
In a power saving return method in a route search system that includes a mobile terminal device connected via a network and a route search server, and searches for a route that satisfies a route search condition set by the mobile terminal device and performs route guidance,
The portable terminal device is a portable terminal device that activates an application program for navigation and performs route guidance based on information on a guidance route searched by a route search server, and stops for terminating the application program A determination means and a notification request means, and when the stop determination means determines that a stop condition has been established based on the information on the guidance route, the notification request means restarts route guidance to the route search server. Transmitting a resumption notification request including route guidance resumption information; and restarting the application program based on the guidance resumption notification received from the route search server to resume route guidance.
The route search system includes a notification criterion calculation unit that calculates a notification criterion for resuming route guidance in the portable terminal device, and the notification criterion calculation unit notifies based on information on a guidance route of the corresponding portable terminal device. It has a step of calculating the standard, and it can be either terminal or server
The route search server includes a notification determination unit and a restart notification unit, and when receiving a restart notification request from the mobile terminal device, the notification determination unit determines whether a route is based on the notification criterion calculated by the notification criterion calculation unit. When it is determined that the guidance resumption condition is satisfied, the resumption notification means includes a step of transmitting a guidance resumption notification including route guidance resumption information to the portable terminal device via the network.

  The invention according to claim 27 of the present application is the power saving return method according to claim 26, wherein the stop determination means advances the route for a predetermined distance or required time based on the information of the guide route. It is characterized in that it is determined that the stop condition is satisfied when there is no change in direction and the vehicle travels along the road and does not require route guidance.

  The invention according to claim 28 of the present application is the power saving return method according to claim 26 or claim 27, wherein the notification criterion calculation means is a time when route guidance should be resumed based on the information on the guide route. Is calculated as a notification criterion, and the notification determining unit compares the current time with the time calculated as the notification criterion to determine whether or not to transmit a guidance resumption notification.

  According to a twenty-ninth aspect of the present invention, in the power saving return method according to the twenty-sixth or twenty-seventh aspect, the notification criterion calculating unit is a place where the route guidance should be resumed based on the information on the guidance route. Is calculated as a notification criterion, and the notification determination unit determines whether or not to transmit a guidance resumption notification by comparing the position information received from the portable terminal device with the position information calculated as the notification criterion. .

  The invention according to claim 30 of the present application is the power saving return method according to claim 26, wherein the stop determination means includes the transportation facility when a route section using a transportation facility is included in the guide route. It is characterized in that the route section using the is determined as the section where the stop condition is satisfied.

  The invention according to claim 31 of the present application is the power saving recovery method according to claim 30, wherein the notification criterion calculation means uses the time at which route guidance should be resumed as a notification criterion based on the information on the guidance route. And the time is at least immediately before the starting point of the walking route section, and the time to get off the transportation means of the transportation means is calculated, and the notification determination means includes the current time and the time calculated as the notification reference And determining whether or not a guidance resumption notification can be transmitted.

  The invention according to claim 32 of the present application is the power saving return method according to claim 30, wherein the notification criterion calculation means sets the traffic as a place where route guidance should be resumed based on the information on the guide route. The location indicating the station that gets off the transportation means during the period is calculated as a notification criterion, and the notification determination unit compares the current location information received from the mobile terminal device with the location information of the location calculated as the notification criterion, and resumes guidance It is characterized by determining whether the notification can be transmitted.

  According to claim 33 of the present application, in the power saving return method according to claim 26, the route guidance information received from the route search server does not require route guidance in a section where route guidance is unnecessary. Flag information indicating that the stop condition is satisfied, and the stop determination unit determines whether the stop condition is satisfied based on the flag information.

  The invention according to claim 34 of the present application is the power saving return method according to claim 33, wherein the route search system includes storage means for storing a movement history of the mobile terminal device, and the number of movements is calculated from the movement history. It is characterized in that a route section of a predetermined number of times or more is determined as a route section that does not require route guidance, and flag information indicating that route guidance is unnecessary is added to the route section.

The invention according to claim 35 of the present application is
In a navigation device that performs route guidance by searching for a route that satisfies the route search condition,
The navigation device is a navigation device that activates an application program for navigation and executes route guidance based on information on the searched guidance route, and includes a stop determination unit and a notification request unit for terminating the application program. And a notification criterion calculating means for calculating a notification criterion for resuming the route guidance,
When the stop determination unit determines that the stop condition is satisfied based on the information on the guide route, the notification criterion calculation unit calculates a notification criterion based on the guide route information, and the notification request unit includes the navigation request information. The other application program takes over the resumption notification request including the route guidance resumption information for resuming the route guidance to another active application program or the activated other application program, and the other application program If it is determined that the route guidance restart condition is satisfied based on the notification criterion calculated by the notification criterion calculation means, the navigation application program is restarted, and the route guidance restart information is stored in the application program for navigation. To take over route guidance Characterized by open.

  The invention according to claim 36 of the present application is the navigation device according to claim 35, wherein the stop determination means is configured to determine whether the route is in a traveling direction for a predetermined distance or a required time based on the information on the guide route. It is characterized in that it is determined that the stop condition is satisfied when there is no change and the vehicle travels along the road and does not require route guidance.

  According to a thirty-seventh aspect of the present invention, in the navigation device according to the thirty-fifth or thirty-sixth aspect, the notification reference calculating means notifies the time when the route guidance should be resumed based on the information on the guidance route. The other application program is calculated as a reference, and the current time and the time calculated as the notification reference are compared to determine whether the application program for navigation can be restarted.

  The invention according to claim 38 of the present application is the navigation device according to claim 35 or claim 36, wherein the notification reference calculation means notifies the location where route guidance should be resumed based on the information of the guide route. The other application program is calculated as a reference, and the position information of the portable terminal device is compared with the position information calculated as the notification reference to determine whether or not the application program for navigation can be restarted. And

  Further, the invention according to claim 39 of the present application is the navigation device according to claim 35, wherein the stop determination means uses the transportation facility when a route section using a transportation facility is included in the guide route. The route section to be determined is determined as the section where the stop condition is satisfied.

  The invention according to claim 40 of the present application is the navigation device according to claim 39, wherein the notification criterion calculation means calculates a time at which route guidance should be resumed as a notification criterion based on the information on the guidance route. The time is at least immediately before the starting point of the walking route section and calculates the time to get off the transportation means of the transportation, and the other application program calculates the current time and the time calculated as the notification standard. In comparison, it is determined whether or not the application program for navigation can be restarted.

  In addition, the invention according to claim 41 of the present application is the navigation device according to claim 39, wherein the notification criterion calculation means sets the route of the traffic period as a place where route guidance should be resumed based on the information of the guide route. An application program for navigation by calculating a location indicating a station to get off the transportation means as a notification criterion, and the other application program comparing the location information of the mobile terminal device with the location information of the location calculated as the notification criterion It is characterized by determining whether or not to restart.

  The invention according to claim 42 of the present application is the navigation apparatus according to claim 35, wherein the navigation apparatus includes a storage unit that stores a movement history, and a route section in which the number of movements is a predetermined number of times or more is routed from the movement history. It is determined that the route section does not require guidance, flag information indicating that route guidance is not necessary is added to the route section, and the stop determination unit determines whether the stop condition is satisfied based on the flag information. Features.

In the invention according to claim 1, the mobile terminal device is a mobile terminal device that activates an application program and executes route guidance based on information on the guide route searched by the route search server, and terminates the application program Stop determining means and a notification requesting means, and when the stop determining means determines that a stop condition is satisfied based on the information of the guidance route, the notification requesting means provides route guidance to the route search server. Send a resume notification request with route guidance resume information to resume,
The route search system includes a notification criterion calculation unit that calculates a notification criterion for resuming route guidance in the portable terminal device, and the notification criterion calculation unit notifies based on information on a guidance route of the corresponding portable terminal device. Calculate the criteria,
The route search server includes a notification determination unit and a restart notification unit, and when receiving a restart notification request from the mobile terminal device, the notification determination unit determines whether a route is based on the notification criterion calculated by the notification criterion calculation unit. When it is determined that the guidance resumption condition is satisfied, the resumption notification means transmits a guidance resumption notification including route guidance resumption information to the mobile terminal device via the network,
The portable terminal device restarts the route guidance by restarting the application program based on the guidance resume notification received from the route search server.

  According to such a configuration, the application program for navigation is started and the route guidance is executed based on the information on the guidance route searched by the route search server. Since the application program is terminated, the electric power necessary for the operation of the application program is also unnecessary, and the power saving effect can be sufficiently exhibited.

  In the invention according to claim 2 of the present application, in the route search system according to claim 1, the stop determination unit is configured to determine whether the route is in a traveling direction for a predetermined distance or a required time based on the information on the guide route. When there is no change and the road travels and the route guidance is not required, it is determined that the stop condition is satisfied. Therefore, the application program is terminated when driving along a route that does not turn right or left, so that the power required for the operation of the application program is also unnecessary, so that the power saving effect can be fully exhibited. Become.

  In the invention according to claim 3 of the present application, in the route search system according to claim 1 or claim 2, the notification criterion calculation means determines the time at which the route guidance should be resumed based on the information of the guidance route. The notification determination unit determines whether or not to transmit a guidance resumption notification by comparing the current time with the time calculated as the notification reference. Therefore, the mobile terminal device can restart the application program by restarting the application program at the next time when route guidance is required.

  In the invention according to claim 4 of the present application, in the route search system according to claim 1 or claim 2, the notification criterion calculating means determines the location where the route guidance should be resumed based on the information of the guidance route. The notification determination unit determines whether or not to transmit the guidance resumption notification by comparing the position information received from the portable terminal device with the position information calculated as the notification reference. Therefore, when the mobile terminal device reaches the next place where route guidance is required, the mobile terminal device can restart the application program and resume route guidance.

  In the invention according to claim 5 of the present application, in the route search system according to claim 1, the stop determination means uses the transportation facility when a route section using the transportation facility is included in the guide route. The route section is determined as a section where the stop condition is satisfied. Therefore, the application program is terminated when moving without getting on and off using the transportation means, so that the power necessary for the operation of the application program is also unnecessary, and the power saving effect can be sufficiently exhibited. .

  In the invention according to claim 6 of the present application, in the route search system according to claim 5, the notification criterion calculation means calculates, based on the information of the guidance route, the time at which the route guidance should be resumed as a notification criterion, The time is at least immediately before the starting point of the walking route section and calculates the time to get off the transportation means of the transportation means, and the notification determination means compares the current time with the time calculated as the notification criterion. To determine whether or not to transmit the guidance resumption notification. Therefore, the mobile terminal device can restart the application program by restarting the application program at the next time when route guidance is required.

  In the invention according to claim 7 of the present application, in the route search system according to claim 5, the notification criterion calculation means sets the route guidance as a place where route guidance should be resumed based on the information on the guide route. The location indicating the station to get off the means is calculated as a notification criterion, and the notification determination unit compares the current location information received from the mobile terminal device with the location information of the location calculated as the notification criterion, and transmits a guidance resumption notification. Judgment is made. Therefore, when the mobile terminal device reaches the next place where route guidance is required, the mobile terminal device can restart the application program and resume route guidance.

  In the invention according to claim 8 of the present application, in the route search system according to claim 1, the information on the guide route received from the route search server indicates that the route guide is unnecessary in the section where the route guide is not required. Flag information is added, and the stop determination means determines whether a stop condition is satisfied based on the flag information. Therefore, the mobile terminal device can start an application program for navigation and easily determine a section that does not require route guidance based on information on the guidance route searched by the route search server. Since the program is terminated, the electric power necessary for the operation of the application program is not required, and the power saving effect can be sufficiently exhibited.

  In the invention according to claim 9 of the present application, in the route search system according to claim 8, the route search system includes storage means for storing the movement history of the mobile terminal device, and the number of movements is equal to or more than a predetermined number of times from the movement history. Is determined as a route section that does not require route guidance, and flag information indicating that route guidance is unnecessary is added to the route section. Therefore, it is possible to terminate the application program without using the route guidance for the known route section in which the user of the mobile terminal device repeatedly moves, and restart the application program by restarting the application program when reaching the unguided route section. become able to. As a result, the power required for the operation of the application program is also unnecessary, and the power saving effect can be fully exhibited.

  In the invention according to claims 10 to 16, it is possible to provide a route search server constituting the route search system according to claims 1 to 9, and according to claims 17 to 25. In the invention, it is possible to provide a mobile terminal device constituting the route search system according to claims 1 to 9.

  In the inventions according to claims 26 to 34, it is possible to provide a power saving return method in the route search system according to claims 1 to 9. Furthermore, in the invention according to claims 35 to 42, the termination and resumption of the application program can be controlled only by the portable terminal device or the navigation device.

1 is a system configuration diagram illustrating a configuration of a route search system according to an embodiment of the present invention. It is a block diagram which shows the detailed structure of the route search system in the Example of this invention. It is a flowchart which shows an example of the operation | movement procedure of the route search system in the Example of this invention, FIG. 3 (A) shows the operation | movement procedure of a portable terminal device until an application program is stopped, FIG. 3 (B) is notification. FIG. 3C is a diagram illustrating an operation procedure of the mobile terminal device from when the resumption notification is received to when the application program is resumed. It is a flowchart which shows another example of the operation | movement procedure of the route search system in the Example of this invention, FIG. 4 (A) shows the operation | movement procedure of a portable terminal device until an application program is stopped, FIG.4 (B) is FIG. FIG. 4C is a diagram showing the operation procedure of the mobile terminal device until receiving the resumption notification and resuming the application program. is there. It is a flowchart which shows another example of the operation | movement procedure of the route search system in the Example of this invention, FIG. 5 (A) calculates the notification reference | standard, and shows the operation | movement procedure of the portable terminal device until an application program is stopped. FIG. 5B shows the operation procedure of the route search server that transmits the restart notification, and FIG. 5C shows the operation procedure of the portable terminal device until the restart notification is received and the application program is restarted. It is. It is a conceptual diagram explaining the road network data used for the route search of this invention. It is a conceptual diagram explaining the traffic network data used for the route search of this invention.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. However, the embodiment described below exemplifies a route search system for embodying the technical idea of the present invention, and is not intended to identify the present invention as this route search system. The present invention is equally applicable to route search systems of other embodiments included in the scope of claims.

  As shown in FIG. 1, a route search system 10 according to an embodiment of the present invention includes a terminal device 20 using a portable terminal such as a mobile phone, a PDA, or a music player, and a route search server 30 including a network 12 such as the Internet. It is configured to be connected via. The route search server 30 includes a database (DB1) in which road network data for route search is stored, a database (DB2) in which traffic network data based on timetable data is stored as traffic network data, and trains of transportation facilities. It has a timetable based on the service schedule, a timetable / fare data database (DB3) that accumulates fares, and a database (DB4) that accumulates map data for display. The timetable / fare data can be acquired from the information distribution server 50 via the network.

  This route search system 10 includes a POI information distribution server 50 that provides detailed information such as the location of POIs (Points of Interest) that belong to various categories, service contents, advertisements, map data, traffic route data, and operation times. Table data, contents such as music and various images, and various information distribution servers 51 that provide other information can be connected. The route search server 30 is connected to the POI information distribution server 50 and other information distribution servers 51 via the network 12. You can then get the data you need and add it to your database. Similarly, a search request can be transmitted to the POI information distribution server 50 or another information distribution server 51 to obtain a desired search result.

  The route search system 10 according to the present invention is not limited to the above-described configuration, and the route search server 30 may have a function of a map distribution server that distributes a map of a POI location together with a navigation service function. The terminal device 20 can also use a mobile phone, and may be a portable device such as a PDA, a music player, a portable game machine, or a personal computer (PC).

  When the terminal device 20 requests a route search from the route search server 30 and receives a route guidance service, the terminal device 20 sets route search conditions such as a desired departure place and destination and sends the route search server 30 with the route search condition. Send a route search request.

  When there is a route search request from the terminal device 20, the route search server 30 searches for a route with reference to road network data, traffic network data, timetable / fare data in the databases D1 to D3. Then, the guide route (recommended route) obtained from the route search result is transmitted to the terminal device 20. Further, when there is a request for obtaining map data by designating a desired point or POI from the terminal device 20, the corresponding map data is read out with reference to the map data in the database DB 4 and distributed to the terminal device 20.

  These controls are executed by starting an application program for navigation installed in the terminal device. By the way, in the navigation system, even during route guidance, for example, it is not necessary to receive route guidance while driving on an expressway, and while traveling on a train while using transportation, There is no need to receive route guidance. In such a route section, the mobile terminal device is switched to the power saving mode.For example, even if the power supply to the display unit is turned off, if the application program itself continues to operate, positioning is performed at a predetermined time interval. As a result, the function of transmitting the current position to the server works and sufficient power saving effect cannot be exhibited.

  To avoid this, if the user exits the navigation application program when getting on the train or entering the expressway to reduce power consumption, Then, it is necessary to restart the navigation application program at the point of getting off the highway and resume navigation. In order to resume route guidance, an operation such as setting route search conditions again is necessary, which is inconvenient for the user.

  Therefore, in the navigation system according to the present invention, the mobile terminal device determines the stop condition of the navigation application program, ends the navigation application program, and the route guidance restart information necessary for restarting the route guidance to the route search server. In addition, a notification request for resumption information is transmitted, and the route search server calculates a notification criterion condition based on the guidance route information, and if the notification criterion condition is satisfied, the application program is stored in the mobile terminal device. The mobile terminal device is configured to restart the navigation application program and restart the route guidance based on the restart notification that prompts the user to restart and the route guidance restart information sent from the mobile terminal device. Yes.

  Hereinafter, a route search system 10 according to an embodiment of the present invention will be described based on specific examples, but before that, a detailed configuration of the route search system 10 according to the present invention will be described. FIG. 2 is a block diagram showing a detailed configuration of the route search system 10 of FIG.

  The mobile terminal device 20 activates the navigation application program, sets route search conditions such as a departure place and a destination to the route search server 30 and transmits a route search request. The route search server 30 follows the route search conditions. The optimum route is searched with reference to road network data, traffic network data, timetable / fare data, and transfer information data, and the optimum route is edited into guide route data and distributed to the mobile terminal device 20.

  The portable terminal device 20 includes a control unit 201, a communication unit 21, a position information acquisition unit 22 including a GPS receiver, a route search request unit 23, a notification request unit 24, a display unit 25, an operation input unit 26, and a stop determination unit 27. The route guidance resumption information extracting means 28 is provided. Although not shown, the control means 201 is a microprocessor having a RAM, a ROM, and a processor, and controls the operation of each unit by a navigation application program stored in the ROM. The communication means 21 is a communication interface for transmitting / receiving communication data to / from the route search server 30 via the network 12 such as the Internet. When the mobile terminal device 20 is a mobile phone, the communication means 21 is configured to include an interface for performing a telephone call and data communication through a public telephone network.

  The position information acquisition unit 22 includes a GPS receiver, receives signals from a plurality of GPS satellites, measures the current position with latitude and longitude, and acquires position information of the mobile terminal device 20. The operation input means 26 includes numbers, alphabet keys, other function keys, selection keys, scroll keys (up / down / left / right arrow keys), etc., and performs input for operating the mobile terminal device 20. It is also used as an input function for route search conditions such as the destination. The display means 25 is composed of a liquid crystal display panel or the like, and is used for displaying a guidance route, a recommended route, or a map distributed (transmitted) from the route search server 30. The display means 25 also functions as an input means for displaying the menu screen and operating the mobile terminal device 20.

  The route search request unit 23 creates a route search request based on the route search conditions such as the departure point and destination set by the operation input unit 26 or the display unit 25 and transmits the route search request to the route search server 30. Since it is necessary to identify the requesting mobile terminal device 20 in the route search server 30, the terminal ID and the e-mail address are added to a processing request such as a route search request and transmitted. When the mobile terminal device 20 is a mobile phone, information such as a mobile phone number and a data communication terminal address is added in addition to the terminal ID and the e-mail address.

  Guide route data and the like as route search results delivered from the route search server 30 to the mobile terminal device 20 are temporarily stored in a memory (not shown). Further, the guide route data such as the guide route and the recommended route transmitted from the route search server 30 to the mobile terminal device 20 is also stored in the memory in the same manner, and the guide data and the map data such as the guide route stored in the memory. Is read out as necessary and displayed on the display means 25.

  When a map is displayed on the display unit 25, generally, a guide route and a mobile terminal device 20 are displayed on a map of a certain scale and a certain range including the current position of the terminal device 20 measured by the position information obtaining unit 22. Are displayed so that the current position mark is at the center of the display screen. Since the measured position information includes an error, route matching processing is performed to correct the current position on the guide route when the current position is deviated from the guide route. In addition, when voice guide data is added to the guidance route data distributed from the route search server 30, for example, when the mobile terminal device 20 approaches an intersection or a branch point (guidance point), Play the voice message such as “Turn left at 300m intersection. Please turn left” and guide the user.

  As described above, even if the mobile terminal device 20 is receiving route guidance by operating an application program, the traveling direction such as a right turn or a left turn does not change while driving on a highway. There is no need to receive route guidance, and route guidance is also available in the case of a route section that runs along a road without an intersection (node) to turn right or left over a certain distance even when traveling on a general road unnecessary. Also, while you are on the train while traveling using transportation, you do not need to receive route guidance until you reach the transfer station or the stop station. The stop determination means 27 determines such a route section from the information on the route being guided and ends the application program.

  When the navigation application program is terminated in the mobile terminal device 20, it is necessary to know the restart timing by some method. In the present invention, when the navigation application program is terminated, a request is made to send a restart notification to the route search server 30. The notification request unit 24 transmits a restart notification request so as to transmit a restart notification to the route search server 30. The restart notification cannot be received by the application program. Therefore, the resumption notification is received from the route search server 30 by a short mail to the electronic mail address of the mobile terminal device 20. Further, when the mobile terminal device 20 is a mobile phone, a method may be used in which the route search server 30 makes a phone call to the mobile phone and receives and resumes the call. This procedure will be described in detail later.

  In order to restart the application program, it is necessary to determine a reference condition (point or time) for restarting the application program next, and restart the application program when the reference condition is satisfied. Therefore, the route search server 30 calculates a reference condition for this notification (hereinafter, the notification reference condition is referred to as a notification reference), and transmits a restart notification to the mobile terminal device 20 when the reference condition is satisfied. The reference condition is a point or time when route guidance is required next in the mobile terminal device 20. This reference condition can be easily calculated in the route search server 30 from information on the route being guided. The notification reference condition can also be calculated by the mobile terminal device 20 itself. In this case, the reference condition may be transmitted to the route search server 30 together with the restart notification request.

  In addition, when the application program is restarted, resumption information for continuing route guidance is required. Therefore, the mobile terminal device 20 includes the route guidance resumption information necessary for resuming the route guidance in the resume notification request, and includes the route guidance resume information when receiving the resume notification from the route search server 30. That's fine. The information necessary for resuming the route guidance is, for example, information such as the destination and the latitude and longitude of the guidance point between them, or information for requesting the information to the route search server 30. The route guidance resumption information extraction unit 28 extracts such route guidance resumption information from information on the route being guided.

  On the other hand, the route search server 30 includes control means 301, communication means 31, search request storage means 32, route search means 33, road network data (database DB1), traffic network data (database DB2), timetable / fare data (database). ) DB3, map data (database DB4), notification determination means 34, notification reference calculation means 37, restart notification means 38, movement history storage means 39, and the like.

  In the route search server 30, the control unit 301 is a microprocessor having a RAM, a ROM, and a processor (not shown), and controls the operation of each unit by a control program stored in the ROM. The communication means 31 is an interface for communicating with the mobile terminal device 20, the POI information distribution server 50, and other information distribution servers 51 via the network 12.

  The search request storage means 32 is for temporarily storing route search conditions included in the route search request transmitted from the mobile terminal device 20.

  The route search means 33 is based on route search conditions such as a departure point and a destination transmitted from the mobile terminal device 20 and information on the current position, road network data DB1, traffic network data DB2, timetable / fare data DB3, etc. The route search from the starting point to the destination is performed with reference to the database. As such a route search method, a method called label determination method or Dijkstra method is used. Such a configuration is the same as that of a general route search system.

  Vector map data is stored in the database DB4 storing the map data. This map data is composed of unit map data divided by a predetermined latitude / longitude range. Guide route data as a route search result is distributed to the mobile terminal device 20 together with the vector map data.

  Databases DB1 and DB2 store road network data for searching for a travel route by foot or car and traffic network data for searching for a travel route using public transportation. Specifically, these data are roads (routes) whose nodes are nodes and the positions of inflection points are nodes, routes that connect each node are links, node data, link data, and cost information (distance) of all links. Or the required time) and is made into a database.

  Transport network data is also stored in stations as nodes, links between stations, and timetable data (departure time, arrival time, required time, transfer time) of each vehicle such as trains that are linked as link cost data. It is a thing.

  The road network data in the pedestrian route search system and the route search system for vehicles has the end points, intersections, and inflection points of the roads as nodes, and the roads connecting the nodes are represented by directional links. (Link latitude / longitude of the node), link data (link number), and link cost data using link cost (link distance or time required for traveling the link) of each link as data.

  When a route search is performed using such road network data, a link connected from the starting node to the destination node is traced, and the link cost is accumulated to search for a route that minimizes the accumulated link cost. invite. In other words, since there are actually multiple routes from the departure node to the destination node, each route is searched in the same way, and the route with the lowest link cost is determined as the optimum route. To do. This method is performed by, for example, a known method called the Dijkstra method.

  On the other hand, the traffic network data for route search of transportation means that each station (each airport on an aircraft route) provided on each traffic route is a node, and a section connecting each node is directed. It is represented by a link, and node data (latitude / longitude) and link data (link number) are network data. The link cost of a transportation network is a fixed and static link cost in a road network, whereas a train or an aircraft operating a traffic route (hereinafter, each route such as an individual train or an aircraft is referred to as a transportation means). ) Are variable and dynamic.

  That is, the time of departure from a node in each means of transportation and the time of arrival at the next node are fixed (specified by timetable data and operation data), and each route is not necessarily linked to an adjacent node. May not. This is the case, for example, with express trains and trains that stop at each station. In such a case, a plurality of different links exist on the same traffic route, and the required time between nodes may differ depending on the transportation means. For this reason, the timetable / fare data is referred to and incorporated in the traffic network data. Of course, on routes that connect different routes, transfers occur at transfer stations (transfer points). At transfer stations, transfer information data is referenced, and transfer routes that minimize transfer costs (for example, passages that include transfer stairs from the arrival platform to the departure platform), and optimal arrival and departure trains The boarding vehicle number is added to the route information for guidance.

  In general, a route search in a car navigation system or the like usually searches for an optimum route with the lowest route cost (the shortest required distance distance or the shortest required time), but a route including a route section using a transportation facility. In the search, it is also required to compare various routes such as the route with the lowest charge or the route with the fewest number of transfers, and the route search referred to in this specification is often configured to search for a plurality of candidate routes. Any of them may be used.

  When the route search server 30 receives a restart notification request for the application program from the mobile terminal device 20, the notification criterion calculation unit 37 next restarts the application program from the information on the route that is guiding the mobile terminal device 20, and the route A reference condition for restarting the guidance is calculated. The reference condition is, for example, a point (place) where next guidance in the traveling direction is required, an estimated arrival time at the point, a transfer station, a stop station, or an arrival time thereof. These include position information of points such as nodes of route information, time calculated from the moving speed and distance of the mobile terminal device 20 (distance of the corresponding route section), position information of nodes of route sections using transportation, It can be easily calculated from time information (transfer station arrival time, etc.).

  It is not necessary to strictly calculate the point and time as the notification reference condition. This is because the application program is restarted when the next route guidance is required, and it is only necessary that the route guidance is restarted, as long as it is restarted before the point or time when the route guidance is required. It is. For example, when a point is calculated as a notification reference, it is not necessarily a specific point represented by latitude and longitude, and an area in a predetermined range including the point may be used as a notification reference location. The same applies when the time is calculated as the notification reference condition.

  When the notification standard condition (location or time) is calculated by the notification standard calculation unit 37, the notification determination unit 34 compares the notification standard condition from the current time and the current position information of the mobile terminal device 20, and determines the condition. If the condition is satisfied, the restart notification means 38 notifies the restart together with the route guidance restart information (the route guidance restart information included in the restart notification request from the mobile terminal device 20). It transmits to the portable terminal device 20.

  The mobile terminal device 20 restarts the navigation application program by receiving the resume notification, resumes the route guidance based on the route guidance resume information, and then performs the route guidance (right or left turn) at the point and time where the route guidance is required. It will be possible to continue to use the information on how to get on the train, how to transfer trains, or the idea of the walking route to the destination after leaving the station.

  This notification can be configured to be transmitted as a short mail from the route search server 30 to the electronic mail address of the mobile terminal device 20. When the mobile terminal device 20 is a mobile phone, it is transmitted as a mail via the public telephone network or is received as a phone call, and the application program is restarted on the mobile terminal device 20 using the control code included in the incoming signal. The route guidance resumption information may be acquired from the route search server 30.

  In addition, the current position of the mobile terminal device 20 is acquired by another application program provided by the communication carrier, for example, a position confirmation service for the elderly or the young, although positioning by the navigation application program is stopped. Location information can be used. Alternatively, position information obtained by autonomous navigation means for positioning based on various sensor outputs provided in the portable terminal device 20 can be used, and position information of the portable terminal device 20 grasped by a base station installed by a communication carrier. Can also be used.

  Next, the operation procedure in the route search system according to the present invention described above will be described in detail with reference to the flowcharts shown in FIGS.

  FIG. 3 is a flowchart showing an example of the operation procedure of the route search system in the embodiment of the present invention. The operation procedure when the route search server 30 calculates the next time when route guidance is required as the notification criterion condition. 3 (A) shows the operation procedure of the mobile terminal device 20 until the application program is stopped, and FIG. 3 (B) shows the operation procedure of the route search server that calculates the notification criterion and transmits the restart notification. FIG. 3C shows an operation procedure of the mobile terminal device 20 from receiving the restart notification until restarting the application program.

  In the flowchart of FIG. 3A, the mobile terminal device 20 activates an application program for navigation, sets desired route search conditions, requests route search and route guidance from the route search server 30, and sends a route search server. It is assumed that route guidance is started by receiving information on the guidance route from 30 (step S101).

  In the mobile terminal device 20, the stop determination unit 27 determines whether or not the position of the mobile terminal device 20 on the guidance route has advanced to a point where route guidance is not required, that is, whether or not the condition for stopping the application program is satisfied. Determination is made (step S102). As described above, the stop determination condition is a case where there is no change in the traveling direction and the route is traveling along a route, or a train is on a route section using a transportation facility. Until the stop determination condition is satisfied, the mobile terminal device 20 repeats the determination process of step S102 while continuing the route guidance.

  When the stop determination condition is satisfied (YES in step S102), the route guidance resumption information extracting unit 28 extracts information necessary for resuming the route guidance from the information on the route being guided. As described above, the route guidance resumption information is, for example, information such as the destination and the latitude and longitude of the guidance point between them, or information for requesting the information to the route search server 30.

  Next, in order for the mobile terminal device 20 to receive a restart notification of the application program from the route search server 30, the notification request unit 24 transmits a notification request including route guidance restart information to the route search server 30 (step). S104). And the portable terminal device 20 complete | finishes an application program (step S105). Thereby, in the portable terminal device 20, there is no power consumption for operating the application program for navigation, and this state is maintained until the restart is received from the route search server 30 and the application program is restarted. Maintained.

  In the flowchart of FIG. 3B, the route search server 30 receives a restart notification request from the mobile terminal device 20 (step S111). When the resumption notification request is received, the notification criterion calculation unit 37 determines the time at which the mobile terminal device 20 next needs route guidance based on the information on the guidance route for which the route guidance has been executed for the mobile terminal device 20. calculate. If the route that is guiding the mobile terminal device 20 is a vehicle or a walking route, the time at which the application program should be restarted can be calculated from the moving speed and the distance to the next guide point. Further, when the mobile terminal device 20 is on a train in a route section using transportation, it is possible to calculate the time at which the application program should be restarted from the arrival time of the train at the transfer station or the getting-off station. it can.

  When the notification criterion calculation means 37 calculates the reference condition of the notification, that is, in the case of this procedure, the mobile terminal device 20 calculates the time at which the application program should be resumed, the notification determination means 34 in the route search server 30 is based on the current time. It is then determined whether or not the time calculated as the notification reference has come (step S113). This determination process is repeated until the current time satisfies the notification-based time condition (the notification condition is satisfied). When the notification criterion is satisfied (YES in step S113), the restart notification means 38 transmits a restart notification so that the mobile terminal device 20 restarts the application program (step S114). The resumption notification transmitted from the route search server 30 to the mobile terminal device 20 is transmitted as a short mail via a network such as the Internet, and the mobile terminal device 20 is requested when the notification is requested (see FIG. 3A, steps S103 and S104). The route guidance restart information transmitted from is included.

  In the flowchart of FIG. 3C, the mobile terminal device 20 receives a restart notification from the route search server 30 by a short mail (step S121). If it is a short mail, the mobile terminal device 20 receives communication from the route search server 30 even if the application program for navigation is not started (finished) in the mobile terminal device 20. Can do.

  Next, the mobile terminal device 20 extracts route guidance restart information included in the restart notification (step S122), and restarts the application program (step S123). When the application program is activated, the mobile terminal device 20 resumes route guidance based on the route guidance resume information extracted in step S122 (step S124). Since the route guidance resumption information is information such as the destination and the latitude and longitude of the guidance point between them, the mobile terminal device 20 can continue the route guidance that was executed before the application program was terminated.

  The procedure of FIG. 3 calculates the time at which route guidance should be resumed as a notification criterion. However, the procedure (location) where route guidance should be resumed is calculated, and the application is performed when the mobile terminal device 20 reaches that point. It is also possible to take a procedure of restarting the program and restarting the route guidance. FIG. 4 is a flowchart showing such a procedure. FIG. 4A shows an operation procedure of the mobile terminal device 20 until the application program is stopped, and FIG. 4B shows a notification criterion and a restart notification. FIG. 4C shows the operation procedure of the route search server to be transmitted, and FIG. 4C shows the operation procedure of the mobile terminal device 20 until the restart notification is received and the application program is restarted.

  The process of FIG. 4A and the process of FIG. 4C are the same as the processes of FIG. 3A and FIG. 3C, and only the process of the route search server 30 of FIG. 4B. Are different, and only this procedure will be described. When the route search server 30 receives the restart notification request from the mobile terminal device 20 (step S211), the notification reference calculation unit 37 is based on information on the guide route that has been performing route guidance for the mobile terminal device 20. Thus, the mobile terminal device 20 calculates a place (point) where route guidance is required next. If the route that is guiding the portable terminal device 20 is a vehicle or a walking route, information on the next guide point can be obtained from the route information. In addition, if the mobile terminal device 20 is on a train in a route section using transportation, the next station to be guided to a transfer station or a disembarkation station (for transfer or the nearest station of the destination) It is possible to obtain information on the station at which the transportation means gets off when arriving, and to calculate the place (point) where the mobile terminal device 20 should restart the application program. The location information in this case is not necessarily a strict location, and may be a location in the vicinity of the station (a location within a certain range including the station), that is, a location that schematically shows a station to get off.

  When the notification criterion calculation means 37 calculates a notification criterion condition, that is, in the case of this procedure, the portable terminal device 20 calculates a point (place) where the application program should be resumed, the route search server 30 obtains the position information of the portable terminal device 20. Obtain (step S213). The current position of the mobile terminal device 20 is acquired using any one of several methods described below.

  Although the positioning by the application program for navigation is stopped in the mobile terminal device 20, the location information acquired in another application program provided by the communication carrier, for example, the location confirmation service for the elderly or the younger, is used. Can be used. In this case, the route search server 30 acquires the position information of the corresponding mobile terminal device 20 through the carrier's server. Alternatively, the location information of the mobile terminal device 20 grasped by the base station installed by the telecommunications carrier can also be used. Get location information. However, the position of the mobile terminal device 20 ascertained by the communication base station is not a pinpoint point specified by latitude and longitude, but an area having a certain range. The place calculated by the calculating means 37 needs to be calculated as an area having a certain area including a specific point where route guidance should be resumed.

  In addition, when the mobile terminal device 20 includes autonomous navigation means, the positioning result can be used. That is, when the mobile terminal device 20 has autonomous navigation means for positioning based on various sensor outputs, the route search server 30 transmits the positioning result directly from the mobile terminal 20 to acquire the position information. What is necessary is just to comprise so.

  When the route search server 30 acquires the location information of the mobile terminal device 20, in the route search server 30, the notification determination unit 34 compares the location calculated as the notification reference with the location information of the mobile terminal device 20 and notifies the location information. It is determined whether or not the reference condition is satisfied (whether or not the notification reference condition is satisfied (step S214)), and this determination process is repeated until the current time satisfies the notification reference time condition (the notification condition is satisfied). When the notification criterion is satisfied (YES in step S214), the restart notification means 38 transmits a restart notification so that the mobile terminal device 20 restarts the application program (step S215).

  Similar to the processing procedure of FIG. 3, the restart notification transmitted from the route search server 30 to the mobile terminal device 20 is transmitted as a short mail via a network such as the Internet, and when the notification is requested (FIG. 4A, step S203). , S204), the route guidance resumption information transmitted from the mobile terminal device 20 is included. By receiving this restart notification, the mobile terminal device 20 can restart the route guidance by restarting the application program for navigation once completed.

  3 and 4 calculate the notification criterion condition by the route search server 30, the notification criterion condition is calculated on the mobile terminal device 20 side and the notification criterion together with the restart notification request. Can be used as a procedure for transmitting to the route search server 30. FIG. 5 is a flowchart illustrating a procedure when the mobile terminal device 20 is configured to calculate the notification standard. FIG. 5A illustrates the mobile terminal device until the notification standard is calculated and the application program is stopped. FIG. 5B shows the operation procedure of the route search server that transmits the restart notification. FIG. 5C shows the operation procedure of the mobile terminal device 20 until the application program is restarted after receiving the restart notification. The operation procedure is shown.

  Note that the procedure in FIG. 5 is a procedure in the case of calculating time as a notification criterion, as in the procedure in FIG. The procedure in FIG. 5C is similar to the procedure in FIG. 3C, and the procedures in FIGS. 5A and 5B will be described below.

  In the flowchart of FIG. 5A, the mobile terminal device 20 activates an application program for navigation, sets a desired route search condition, requests route search and route guidance from the route search server 30, and sends a route search server. It is assumed that route guidance is started by receiving guidance route information from 30 (step S301).

  In the mobile terminal device 20, the stop determination unit 27 determines whether or not the position of the mobile terminal device 20 on the guidance route has advanced to a point where route guidance is not required, that is, whether or not the condition for stopping the application program is satisfied. Determination is made (step S302). As described above, the stop determination condition is a case where there is no change in the traveling direction and the route is traveling along a route, or a train is on a route section using a transportation facility. Until the stop determination condition is satisfied, the mobile terminal device 20 repeats the determination process in step S302 while continuing the route guidance.

  When the stop determination condition is satisfied (YES in step S302), the mobile terminal device 20 calculates a time when the mobile terminal device 20 next needs route guidance based on the information on the guide route (step S303). If the route that is guiding the mobile terminal device 20 is a vehicle or a walking route, the time at which the application program should be restarted can be calculated from the moving speed and the distance to the next guide point. Further, when the mobile terminal device 20 is on a train in a route section using transportation, it is possible to calculate the time at which the application program should be restarted from the arrival time of the train at the transfer station or the getting-off station. it can.

  When the notification criterion is calculated, the route guidance resumption information extracting unit 28 extracts information necessary for resuming the route guidance from the information on the route being guided (step S304). As described above, the route guidance resumption information is, for example, information such as the destination and the latitude and longitude of the guidance point between them, or information for requesting the information to the route search server 30.

  Next, in order for the mobile terminal device 20 to receive a restart notification of the application program from the route search server 30, the notification request unit 24 transmits a notification request including notification criteria and route guidance restart information to the route search server 30. (Step S305). And the portable terminal device 20 complete | finishes an application program (step S306). Thereby, in the portable terminal device 20, there is no power consumption for operating the application program for navigation, and this state is maintained until the restart is received from the route search server 30 and the application program is restarted. Maintained.

  In the flowchart of FIG. 5B, the route search server 30 receives the restart notification request from the mobile terminal device 20 (step S311), and extracts the notification reference condition included in the notification request from the mobile terminal device 20 (step S311). Step S312). Then, the notification determination unit 34 determines whether or not the time calculated as the notification reference has been reached based on the current time (step S313). This determination process is repeated until the current time satisfies the notification-based time condition (the notification condition is satisfied).

  When the notification criterion is satisfied (YES in step S313), the restart notification means 38 transmits a restart notification so that the mobile terminal device 20 restarts the application program (step S114). The resumption notification transmitted from the route search server 30 to the mobile terminal device 20 is transmitted as a short mail via a network such as the Internet, and the mobile terminal device 20 is requested when the notification is requested (see FIG. 3A, steps S103 and S104). The route guidance restart information transmitted from is included.

  Similar to the processing procedures of FIGS. 3 and 4, the restart notification transmitted from the route search server 30 to the mobile terminal device 20 is transmitted as a short mail via a network such as the Internet, and the notification is requested (FIG. 5A). , Refer to step S304), the route guidance resumption information transmitted from the mobile terminal device 20 is included. By receiving this restart notification, the mobile terminal device 20 can restart the route guidance by restarting the application program for navigation once completed.

  In the procedure of FIG. 5, the example of calculating the next time when route guidance is required as the notification criterion has been described. However, in the same manner as described with reference to FIG. Needless to say, it may be configured to calculate.

  However, in the mobile terminal device 20, even if the stop determination unit 27 determines that the stop condition is satisfied, there is a user who does not want to end the application program, and confirms with the user confirmation before performing the processing according to the present invention. Only when it is obtained, it can be configured to perform the processing according to the present invention.

  As described above, the procedure according to the embodiment of the present invention has a configuration in which the mobile terminal device 20 receives a restart notification indicating that the application program should be restarted from the route search server 30 using a communication method such as short mail. As described above, depending on the system configuration inside the mobile terminal device 20, the above procedure may be executed only within the mobile terminal device 20 itself.

  For example, the mobile terminal device 20 has a plurality of application programs installed therein, and has other application programs in addition to the navigation application program. As an operating system (OS), the application program can take over the information necessary for resuming the application program to be terminated and can execute a predetermined process based on the information taken over by the other application program being started. If so, the processing of the present invention can be performed only inside the mobile terminal device 20. If there is no other application program being activated, any other application program may be activated, and information necessary for resuming the application program to be terminated by the activated application program may be taken over. In this case, the other application program that has succeeded (started up) the information may be terminated after determining whether the notification reference condition is satisfied and restarting the application program for navigation.

  That is, when terminating the application program for navigation, in the procedure of FIG. 5, the notification request, the route guidance resumption information, and the notification criterion condition information transmitted to the route search server 30 are being activated on the mobile terminal device 20. After taking over to another application program, the application program for navigation is terminated, and the other application program that is running is made to judge the establishment of the notification criteria condition. The application program for restarting may be restarted, and the route guidance resume information taken over may be taken over by the application program for navigation.

  Here, a general search method for a route including a travel route by transportation will be described. The road network data for route search by foot or car is configured as follows. For example, when the road is composed of roads A, B, and C as shown in FIG. 6, the end points, intersections, and inflection points of the roads A, B, and C are used as nodes, and the roads connecting the nodes are directed links. Link cost data with node data (node latitude / longitude), link data (link number) and link cost of each link (link distance or time required to travel the link) as data Composed.

  That is, in FIG. 6, Nn (◯ mark) and Nm (◎ mark) indicate nodes, and Nm (◎ mark) indicates a road intersection. Directional links connecting the nodes are indicated by arrow lines (solid line, dotted line, two-dot chain line). As for the links, there are links facing in the upward and downward directions of the road, but in FIG. 6, only the links in the direction of the arrows are shown for the sake of simplicity.

  When route search is performed using such road network data as a route search database, links linked from the starting node to the destination node are traced to accumulate the link cost, thereby minimizing the accumulated link cost. Search and guide the route. That is, in FIG. 6, when the route search is performed with the departure point as the node AX and the destination as the node CY, the road travels from the node AX along the road A, turns right at the second intersection, enters the road C, and reaches the node CY. The link cost is accumulated sequentially, and a route that minimizes the accumulated link cost is searched for and guided.

  Although other routes from the node AX to the node CY are not shown in FIG. 6, there are actually other such routes, so that a plurality of routes that can be reached from the node AX to the node CY are displayed. A search is performed in the same manner, and a route with the lowest link cost is determined as the optimum route. This is performed, for example, by a well-known method called the Dijkstra method.

  On the other hand, the traffic network data for route search using a transportation system is configured as follows. For example, as shown in FIG. 7, in the case of traffic routes A, B, and C, each station (each airport on an aircraft route) provided on each traffic route A, B, and C is used as a node, and the nodes are connected. A section is represented by a directional link, and node data (latitude / longitude) and link data (link number) are network data. In FIG. 7, Nn (◯ mark) and Nm (◎ mark) indicate nodes, Nm (◎ mark) indicates a transit point (such as a transfer station) on a traffic route, and a directional link connecting each node. It is indicated by an arrow line (solid line, dotted line, two-dot chain line). As links, there are links facing in the upward and downward directions of the traffic route. In FIG. 7, only the links in the direction of the arrows are shown for the sake of simplicity.

  However, the traffic network basically has a different link cost compared to the road network. In other words, in the road network, the link cost is fixed and static. However, in the traffic network, as shown in FIG. A plurality of means of transportation). When the time to depart from one node and the time to arrive at the next node are determined for each means of transportation (specified by timetable data and operation data), and each route does not necessarily link to an adjacent node There is. This is the case, for example, with express trains and trains that stop at each station. In such a case, a plurality of different links exist on the same traffic route, and the required time between nodes may differ depending on the transportation means.

  In the transportation network illustrated in FIG. 7, a plurality of transportation means (routes) Aa to Ac... Exist on the same link of the transportation route A, and a plurality of transportation means (routes) Ca to Cc. Will do. Therefore, unlike a simple road network, the transportation network of a transportation facility has a data amount proportional to the total number of transportation means (routes of individual aircraft, trains, etc.).

  In order to search for a route from a certain departure point to a certain destination using such traffic network data, all the means of transportation that can be used (ride) when arriving from the departure point to the destination are searched. It is necessary to specify the means of transportation that matches the search conditions.

  For example, in FIG. 7, when a route search is performed with a node CY of the traffic route C as a destination by designating a specific departure time with the departure point as the node AX of the traffic route A, the route operates on the traffic route A. Of the transportation means Aa to Ac..., All transportation means after the departure time are sequentially selected as the departure route. And, based on the arrival time at the transit node on the transit route C, among all the transit means Ca-Cc... Operating on the transit route C, all combinations of transit means after the time that can be boarded at the transit node. And the required time of each route, the number of transfers, etc. are accumulated and guided.

  The route search server 30 uses such network data, searches for a plurality of candidate routes from the departure point to the destination in accordance with the route search conditions, and sets the results as candidate routes. Minimize the transfer cost at the transfer station if the departure time of the departure place is specified in the route search conditions, and the transfer time at the transfer station if the transfer section is included in the route section using transportation. The transfer route, the arrival train to the transfer station, the optimum number of vehicles on the train departing from the transfer station, etc. can be guided.

  As described above in detail, according to the route search system according to the present invention, the application program for navigation is terminated in a route section that does not require route guidance, and the application program is restarted when route guidance is required. Since the route guidance can be restarted by starting, no power is required to operate the application program for navigation during that time, so that a sufficient power saving effect can be exhibited.

  The present invention can be applied not only to a communication type route search system but also to a stand-alone type navigation device, and can provide a system having a remarkable energy saving effect.

DESCRIPTION OF SYMBOLS 10 ... Route search system 12 ... Network 20 ... Mobile terminal device 201 ... Control means 21 ... Communication means 22 ... Position information acquisition means 23 ... Search Request means 24 ... Notification request means 25 ... Display means 26 ... Operation input means 27 ... Stop determination means 28 ... Route guidance resumption information extraction means 30 ... Route Search server 301 ... Control means 31 ... Communication means 32 ... Search request storage means 33 ... Route search means DB1 ... Road network database DB2 ... Traffic network database DB3 ... Timetable / fare database DB4... Map database 34... Notification determination means 37... Notification standard calculation means 38.

Claims (42)

In a route search system that includes a mobile terminal device connected via a network and a route search server, and performs route guidance by searching for a route that satisfies a route search condition set by the mobile terminal device,
The portable terminal device is a portable terminal device that activates an application program for navigation and performs route guidance based on information on a guidance route searched by a route search server, and stops for terminating the application program A determination means and a notification request means, and when the stop determination means determines that a stop condition has been established based on the information on the guidance route, the notification request means restarts route guidance to the route search server. Send a resume notification request that includes route guidance resume information,
The route search system includes a notification criterion calculation unit that calculates a notification criterion for resuming route guidance in the portable terminal device, and the notification criterion calculation unit notifies based on information on a guidance route of the corresponding portable terminal device. Calculate the criteria,
The route search server includes a notification determination unit and a restart notification unit, and when receiving a restart notification request from the mobile terminal device, the notification determination unit determines whether a route is based on the notification criterion calculated by the notification criterion calculation unit. When it is determined that the guidance resumption condition is satisfied, the resumption notification means transmits a guidance resumption notification including route guidance resumption information to the mobile terminal device via the network,
The mobile terminal device restarts the route guidance by restarting the application program based on the guidance restart notification received from the route search server.   The stop determination means establishes a stop condition based on the information on the guidance route when the route does not change in the traveling direction and does not require route guidance for a predetermined distance or required time and does not require route guidance. The route search system according to claim 1, wherein:   The notification criterion calculation means calculates a time at which route guidance should be resumed as a notification criterion based on the information on the guidance route, and the notification determination means compares the current time with the time calculated as the notification criterion. The route search system according to claim 1, wherein whether or not a guidance resumption notification can be transmitted is determined.   The notification criterion calculation means calculates, based on the guidance route information, a place where route guidance should be resumed as a notification reference, and the notification determination means uses the positional information received from the portable terminal device and the notification reference as the notification reference. The route search system according to claim 1, wherein the route search system according to claim 1, wherein the route information is determined by comparing the calculated position information with the guidance resumption notification.   The stop determination means determines a route section using the transportation as a section where a stop condition is satisfied when a route section using a transportation facility is included in the guide route. The route search system described in 1.   The notification criterion calculation means calculates, based on the information on the guidance route, a time at which route guidance should be resumed as a notification criterion, which is at least immediately before the walking route section start point, 6. The time for getting off the transportation means is calculated, and the notification determining means compares the current time with the time calculated as the notification reference to determine whether or not to transmit a guidance resumption notification. Route search system.   The notification criterion calculation means calculates, based on the information on the guide route, as a place where route guidance should be resumed, as a notification criterion, a place indicating a station where the traffic means gets off during the traffic period, and the notification determination means 6. The route search system according to claim 5, wherein the current position information received from the portable terminal device is compared with the position information of a place calculated as a notification criterion to determine whether or not a guidance restart notification can be transmitted.   Flag information indicating that route guidance is not necessary is added to a route where route guidance is unnecessary, and information on the guidance route received from the route search server is provided. The route search system according to claim 1, wherein establishment is determined.   The route search system includes a storage unit that stores a movement history of the mobile terminal device, and determines, based on the movement history, a route section having a predetermined number of movements or more as a route section that does not require route guidance. 9. The route search system according to claim 8, wherein flag information indicating that route guidance is unnecessary is added. In a route search server that is connected to a mobile terminal device via a network and performs route guidance by searching for a route that satisfies the route search conditions set by the mobile terminal device,
The portable terminal device is a portable terminal device that activates an application program for navigation and performs route guidance based on information on a guidance route searched by a route search server, and stops for terminating the application program A determination means and a notification request means, and when the stop determination means determines that a stop condition has been established based on the information on the guidance route, the notification request means restarts route guidance to the route search server. A mobile terminal device that transmits a resumption notification request including route guidance resumption information, restarts the application program based on the guidance resumption notification received from the route search server, and resumes route guidance.
The route search server includes a notification criterion calculation unit that calculates a notification criterion for resuming route guidance in the mobile terminal device, a notification determination unit, and a restart notification unit.
When the route search server receives a restart notification request from the portable terminal device, the notification criterion calculation unit calculates a notification criterion based on information on a guidance route of the corresponding portable terminal device, and the notification determination unit When it is determined that the route guidance restart condition is satisfied based on the notification criterion calculated by the notification criterion calculation unit, the restart notification unit sends a guidance restart notification including route guidance restart information to the mobile terminal device via the network. A route search server characterized by transmitting. In the portable terminal device, when the stop determination unit does not require route guidance without changing the traveling direction for a predetermined distance or required time, based on the information on the guidance route, without changing the traveling direction. In addition, a mobile terminal device that determines the establishment of the stop condition,
The notification criterion calculation means calculates a time at which route guidance should be resumed as a notification criterion based on the information on the guidance route, and the notification determination means compares the current time with the time calculated as the notification criterion. The route search server according to claim 10, wherein whether or not a guidance resumption notification can be transmitted is determined. The portable terminal device, when the stop determination means is based on the information on the guidance route, and when the route does not change the traveling direction and does not require route guidance for a predetermined distance or required time. A portable terminal device for determining whether the stop condition is satisfied,
The notification criterion calculation means calculates, based on the guidance route information, a place where route guidance should be resumed as a notification reference, and the notification determination means uses the positional information received from the portable terminal device and the notification reference as the notification reference. The route search server according to claim 10, wherein the route search server determines whether or not a guidance resumption notification can be transmitted by comparing with the calculated position information. The portable terminal device is a portable terminal device that determines, when the stop determination unit includes a route section using a transportation facility in the guide route, as a section where a stop condition is satisfied. And
The notification criterion calculation means calculates, based on the information on the guidance route, a time at which route guidance should be resumed as a notification criterion, which is at least immediately before the walking route section start point, 11. The time for getting off the transportation means is calculated, and the notification determination means compares the current time with the time calculated as the notification reference to determine whether or not to transmit a guidance resumption notification. Route search server. The portable terminal device is a portable terminal device that determines, when the stop determination unit includes a route section using a transportation facility in the guide route, as a section where a stop condition is satisfied. And
The notification criterion calculation means calculates, based on the information on the guide route, as a place where route guidance should be resumed, as a notification criterion, a place indicating a station where the traffic means gets off during the traffic period, and the notification determination means The route search server according to claim 13, wherein the current position information received from the portable terminal device is compared with the position information of a place calculated as a notification criterion to determine whether or not a guidance resumption notification can be transmitted. The portable terminal device is a portable terminal device that determines whether the stop condition is satisfied based on flag information added to the information on the guide route by the stop determination unit,
11. The route search server according to claim 10, wherein flag information indicating that route guidance is not necessary is added to a section where route guidance is not necessary, to the guidance route information transmitted to the mobile terminal device.   The route search server includes a storage unit that stores a movement history of the mobile terminal device, and determines, based on the movement history, a route section having a number of movements equal to or greater than a predetermined number of times as a route section that does not require route guidance. The route search server according to claim 15, wherein flag information indicating that route guidance is unnecessary is added. In a mobile terminal device connected via a network to a route search server that searches for a route that satisfies the route search condition set by the mobile terminal device and performs route guidance,
The route search server includes a notification determination unit and a restart notification unit, and when receiving a restart notification request from the mobile terminal device, the notification determination unit is configured to provide route guidance based on the notification criterion calculated by the notification criterion calculation unit. If it is determined that the resumption condition is satisfied, the resumption notification means is a route search server that transmits a guidance resumption notification including route guidance resumption information to the portable terminal device via a network,
The portable terminal device is a portable terminal device that activates an application program for navigation and performs route guidance based on information on a guidance route searched by a route search server, and stops for terminating the application program A determination unit, a notification request unit, and a notification criterion calculation unit that calculates a notification criterion for resuming route guidance in the mobile terminal device,
When it is determined that the stop condition is satisfied based on the information on the guidance route, the notification criterion calculation unit calculates a notification criterion based on the information on the guidance route of the corresponding mobile terminal device, and the notification The requesting unit transmits a restart notification request including route guidance resumption information for resuming route guidance to the route search server, and the notification criterion calculated by the notification criterion calculation unit, and the guidance restart notification received from the route search server. The mobile terminal device restarts the route guidance by restarting the application program based on the above.   The stop determination means establishes a stop condition based on the information on the guidance route when the route does not change in the traveling direction and does not require route guidance for a predetermined distance or required time and does not require route guidance. The mobile terminal device according to claim 17, wherein the mobile terminal device is determined.   The notification criterion calculation means calculates a time at which route guidance should be resumed as a notification criterion based on the information on the guidance route, and the notification determination means compares the current time with the time calculated as the notification criterion. 19. The portable terminal device according to claim 17 or 18, wherein whether or not a guidance resumption notification can be transmitted is determined.   The notification criterion calculation means calculates, based on the guidance route information, a place where route guidance should be resumed as a notification reference, and the notification determination means uses the positional information received from the portable terminal device and the notification reference as the notification reference. The mobile terminal device according to claim 17 or 18, wherein the mobile terminal device is compared with the calculated position information to determine whether or not a guidance resumption notification can be transmitted.   18. The stop determination unit, when a route section using a transportation facility is included in the guide route, determines a route section using the transportation facility as a section where a stop condition is satisfied. The mobile terminal device according to 1.   The notification criterion calculation means calculates, based on the information on the guidance route, a time at which route guidance should be resumed as a notification criterion, which is at least immediately before the walking route section start point, The time for getting off the transportation means is calculated, and the notification determining means compares the current time with the time calculated as the notification reference to determine whether or not to transmit the guidance resumption notification. Mobile terminal device.   The notification criterion calculation means calculates, based on the information on the guide route, as a place where route guidance should be resumed, as a notification criterion, a place indicating a station where the traffic means gets off during the traffic period, and the notification determination means The mobile terminal apparatus according to claim 21, wherein the current position information received from the mobile terminal apparatus is compared with the position information of a place calculated as a notification criterion to determine whether or not a guidance resumption notification can be transmitted.   Flag information indicating that route guidance is not necessary is added to a route where route guidance is unnecessary, and information on the guidance route received from the route search server is provided. The portable terminal device according to claim 17, wherein establishment is determined.   The route search server includes a storage unit that stores a movement history of the mobile terminal device, and determines, based on the movement history, a route section having a number of movements equal to or greater than a predetermined number of times as a route section that does not require route guidance. 25. The portable terminal device according to claim 24, wherein flag information indicating that route guidance is unnecessary is added, and the stop determination unit determines whether a stop condition is satisfied based on the flag information. In a power saving return method in a route search system that includes a mobile terminal device connected via a network and a route search server, and searches for a route that satisfies a route search condition set by the mobile terminal device and performs route guidance,
The portable terminal device is a portable terminal device that activates an application program for navigation and performs route guidance based on information on a guidance route searched by a route search server, and stops for terminating the application program A determination means and a notification request means, and when the stop determination means determines that a stop condition has been established based on the information on the guidance route, the notification request means restarts route guidance to the route search server. Transmitting a resumption notification request including route guidance resumption information; and restarting the application program based on the guidance resumption notification received from the route search server to resume route guidance.
The route search system includes a notification criterion calculation unit that calculates a notification criterion for resuming route guidance in the portable terminal device, and the notification criterion calculation unit notifies based on information on a guidance route of the corresponding portable terminal device. It has a step of calculating the standard, and it can be either terminal or server
The route search server includes a notification determination unit and a restart notification unit, and when receiving a restart notification request from the mobile terminal device, the notification determination unit determines whether a route is based on the notification criterion calculated by the notification criterion calculation unit. In the route search system, when it is determined that a resumption condition for guidance is satisfied, the resumption notification unit includes a step of transmitting a resumption notification including route guidance resumption information to the mobile terminal device via a network. Power saving return method.   The stop determination means establishes a stop condition based on the information on the guidance route when the route does not change in the traveling direction and does not require route guidance for a predetermined distance or required time and does not require route guidance. 27. The power saving return method in the route search system according to claim 26, wherein:   The notification criterion calculation means calculates a time at which route guidance should be resumed as a notification criterion based on the information on the guidance route, and the notification determination means compares the current time with the time calculated as the notification criterion. 28. The power saving return method in the route search system according to claim 26 or 27, wherein whether or not a guidance resumption notification can be transmitted is determined.   The notification criterion calculation means calculates, based on the guidance route information, a place where route guidance should be resumed as a notification reference, and the notification determination means uses the positional information received from the portable terminal device and the notification reference as the notification reference. 28. The power saving return method in the route search system according to claim 26 or 27, wherein it is determined whether or not a guidance resumption notification can be transmitted by comparing with the calculated position information.   27. The stop determination unit, when a route section using a transportation facility is included in the guide route, determines a route section using the transportation facility as a section where a stop condition is satisfied. A power saving return method in the route search system according to claim 1.   The notification criterion calculation means calculates, based on the information on the guidance route, a time at which route guidance should be resumed as a notification criterion, which is at least immediately before the walking route section start point, The time for getting off the transportation means is calculated, and the notification determining means compares the current time with the time calculated as the notification reference to determine whether or not to transmit the guidance resumption notification. Power saving return method in the route search system.   The notification criterion calculation means calculates, based on the information on the guide route, as a place where route guidance should be resumed, as a notification criterion, a place indicating a station where the traffic means gets off during the traffic period, and the notification determination means 31. The saving in the route search system according to claim 30, wherein the current position information received from the portable terminal device is compared with the position information of a place calculated as a notification criterion to determine whether or not a guidance resumption notification can be transmitted. Power recovery method.   Flag information indicating that route guidance is not necessary is added to a route where route guidance is unnecessary, and information on the guidance route received from the route search server is provided. 27. The power saving return method in the route search system according to claim 26, wherein establishment is determined.   The route search system includes a storage unit that stores a movement history of the mobile terminal device, and determines, based on the movement history, a route section having a predetermined number of movements or more as a route section that does not require route guidance. 34. The power saving return method in the route search system according to claim 33, wherein flag information indicating that route guidance is unnecessary is added. In a navigation device that performs route guidance by searching for a route that satisfies the route search condition,
The navigation device is a navigation device that activates an application program for navigation and executes route guidance based on information on the searched guidance route, and includes a stop determination unit and a notification request unit for terminating the application program. And a notification criterion calculating means for calculating a notification criterion for resuming the route guidance,
When the stop determination unit determines that the stop condition is satisfied based on the information on the guide route, the notification criterion calculation unit calculates a notification criterion based on the guide route information, and the notification request unit includes the navigation request information. The other application program takes over the resumption notification request including the route guidance resumption information for resuming the route guidance to another active application program or the activated other application program, and the other application program If it is determined that the route guidance restart condition is satisfied based on the notification criterion calculated by the notification criterion calculation means, the navigation application program is restarted, and the route guidance restart information is stored in the application program for navigation. To take over route guidance Navigation system, characterized in that the open.   The stop determination means establishes a stop condition based on the information on the guidance route when the route does not change in the traveling direction and does not require route guidance for a predetermined distance or required time and does not require route guidance. 36. The navigation device according to claim 35, wherein:   The notification criterion calculation means calculates a time at which route guidance should be resumed as a notification criterion based on the guidance route information, and the other application program compares the current time with the time calculated as the notification criterion. The navigation device according to claim 35 or 36, wherein whether or not the application program for navigation is restartable is determined.   The notification criterion calculation means calculates, based on the guidance route information, a location where route guidance should be resumed as a notification criterion, and the other application program calculates the position information of the mobile terminal device and the notification criterion. 37. The navigation apparatus according to claim 35 or 36, wherein the navigation apparatus determines whether or not the application program for navigation can be restarted by comparing the position information.   36. The stop determination means, when a route section using a transportation facility is included in the guide route, determines a route section using the transportation facility as a section where a stop condition is satisfied. The navigation device described in 1.   The notification criterion calculation means calculates, based on the information on the guidance route, a time at which route guidance should be resumed as a notification criterion, which is at least immediately before the walking route section start point, The time for getting off the transportation means is calculated, and the other application program compares the current time with the time calculated as the notification criterion to determine whether or not the application program for navigation can be restarted. The navigation device according to claim 39.   The notification standard calculation means calculates, based on the information on the guidance route, a place indicating a station where the traffic means of the traffic period is to be resumed as a place where the route guidance should be resumed, and the other application program 40. The navigation device according to claim 39, wherein the position information of the portable terminal device and the location information of the place calculated as the notification criterion are compared to determine whether the application program for navigation can be restarted. .   The navigation device includes a storage unit that stores a movement history. Based on the movement history, a route section having a predetermined number of movements is determined as a route section that does not require route guidance, and route guidance is unnecessary for the route section. 36. The navigation apparatus according to claim 35, wherein flag information indicating presence is added, and the stop determination unit determines whether a stop condition is satisfied based on the flag information.

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