JP2014002036A - Apparatus, method and program for recommending walking route - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recommend a more appropriate walking route to a user in consideration of his/her condition.SOLUTION: A portable terminal UT measures acceleration of a walking action of a user U, and calculates gait data indicating a feature of the walking action of the user U on the basis of acceleration data indicating the measurement result. The portable terminal UT also measures a current position of the user U to acquire position data indicating the measurement result, and transmits the position data and the gait data from the portable terminal UT to a server SV. When information on a destination is transmitted from the portable terminal UT, the server SV searches a map information DB 93 on the basis of the position data and the information on the destination to generate a plurality of walking route candidates, selects a walking route appropriate for the user U from among the generated walking route candidates on the basis of the received gait data, and transmits the selected walking route as recommendation information to the portable terminal UT to display it on a display device 7.

Description

  The present invention relates to a walking route recommendation device, method and program for searching for a route from a current position to a target position.

  In recent years, many portable terminals have installed a navigation application that acquires current position information by, for example, GPS (Global Positioning System) positioning means and displays the acquired current position information on map data (for example, patents). Reference 1). Further, when the user inputs information on the target position, a technique for searching the route from the current position to the target position and presenting it to the user (for example, refer to Patent Document 2), or estimating the time of arrival at the target position A technique to be presented to the user (for example, see Patent Document 3) has also been proposed.

Japanese Patent No. 4842588 Japanese Patent No. 4751845 Japanese Patent No. 3569484

  However, none of the conventional techniques described above considers the physical condition of the user. For this reason, especially when performing a route search from the current position to the target position, the user's walking situation changes depending on the degree of fatigue, and the degree of fatigue varies depending on the presence or absence of the disorder, age, sex, etc. It is difficult for the user to present an optimum route if the route is searched only by the length of the distance.

  The present invention has been made paying attention to the above circumstances, and an object of the present invention is to provide a walking path recommendation device, method, and program that can recommend a more appropriate walking path in consideration of the physical condition of the user. It is to provide.

  In order to achieve the above object, according to a first aspect of the present invention, acceleration of a user's walking motion is measured, and gait information representing the characteristics of the user's walking motion is obtained based on acceleration data representing the measurement result. calculate. When the destination information is input, the map information database is searched based on the current position data of the user measured by the position measuring means and the input destination information to generate a plurality of walking route candidates. The user selects a walking route suitable for the user based on the calculated gait information from the generated plurality of walking route candidates, and uses the selected walking route as recommended walking route information. It is intended to be presented.

  According to a second aspect of the present invention, the walking route recommendation device is composed of a portable terminal possessed by a user and a server device that performs data transmission between the portable terminal and the portable terminal via a communication network. Then, in the mobile terminal, the acceleration of the user's walking motion is measured, and gait information representing the feature of the user's walking motion is calculated based on the acceleration data representing the measurement result. At the same time, the current position of the user is measured to obtain position data representing the measurement result, and further, the user receives input of destination information. The calculated gait information, the obtained position data, and The input destination information is transmitted from the portable terminal to the server device. On the other hand, when the server device receives the gait information, the position data and the destination information transmitted from the portable terminal, it searches the map information database based on the received position data and the destination information. A plurality of walking path candidates are generated, a walking path suitable for the user is selected from the generated walking path candidates based on the received gait information, and the selected walking path is walked It is transmitted to the portable terminal as route recommendation information and presented to the user.

  Therefore, according to the first and second aspects of the present invention, gait information is calculated based on the acceleration of the user's walking motion, and a plurality of walking path candidates that can be set between the current position and the target position Based on the calculated gait information, a walking route is selected and presented to the user. For this reason, in consideration of the degree of fatigue that appears as a change in the user's gait, a more appropriate walking route can be presented to the user.

  Further, according to the first aspect, a series of processing from measurement of acceleration and current position to selection of a recommended walking route and its presentation processing are all performed in one walking route recommendation device. For this reason, by giving the user's mobile terminal all the functions of the walking route recommendation device, the mobile terminal can always independently select and present an appropriate walking route independently of the server device.

  On the other hand, according to the second aspect, the user's gait information, position data, and destination information are transferred from the mobile terminal to the server device, and an appropriate walking route selection process in the server device based on these information and data. Is done. For this reason, it is not necessary to provide the mobile terminal with a map information database and a processing function for generating a walking route from the map information database, thereby reducing the memory capacity of the mobile terminal and reducing the processing load. Become.

Further, the first and second aspects of the present invention are also characterized by comprising the following aspects.
In one aspect, when selecting a walking route, an elevation difference in a section from the first measurement position to the second measurement position is calculated based on the measured position data and the map information database. At the same time, a change in the gait information of the user in the section from the first measurement position to the second measurement position is calculated. Then, the map information database is searched based on the measured position data and the information indicating the input destination, and a plurality of walking route candidates in the section from the second measurement position to the destination are generated. Then, a walking route suitable for the user is selected from the plurality of generated walking route candidates based on the calculated change in gait information and the difference in elevation.

  When selecting the walking route, if the change in the calculated gait information exceeds a first threshold and the calculated elevation difference is equal to or less than a second threshold, the generation is performed. Processing may be performed so as to select a walking route having an altitude difference equal to or less than the third threshold value from the plurality of walking route candidates.

  If it does in this way, in addition to the change of the gait information in the section which the user has walked so far, the altitude difference of the section concerned is taken into consideration, and an appropriate walking route is selected. For this reason, for example, if the walking tempo, which is one of the gait information, becomes slower than a threshold even though the user has been walking on a flat road with a small difference in elevation, the pedestrian becomes tired. Therefore, it is possible to perform processing such as selecting a walking route with a small difference in elevation even if the distance increases in the section to the next destination.

  That is, according to the present invention, it is possible to provide a walking route recommendation device, method, and program that can recommend a more appropriate walking route in consideration of the physical condition of the user.

The figure which shows the whole structure of the walking route recommendation apparatus which concerns on one Embodiment of this invention. The block diagram which shows the function structure of the portable terminal of the walking route recommendation apparatus shown in FIG. The block diagram which shows the function structure of the server apparatus of the walk route recommendation apparatus shown in FIG. The flowchart which shows the process sequence and process content by the gait change calculation part of the server apparatus shown in FIG. The flowchart which shows the process sequence and process content by the recommendation path | route calculation part of the server apparatus shown in FIG. The figure for demonstrating an example of a recommendation path | route comparison process among the recommendation path | route calculation processing procedures shown in FIG. The figure which shows the example of a display of the recommended walking path | route selected by the recommended path | route calculation process shown in FIG. The figure which shows the example of a change of the recommended walking path | route by the recommended path | route calculation process shown in FIG.

Embodiments according to the present invention will be described below with reference to the drawings.
[One Embodiment]
(Constitution)
FIG. 1 is a diagram showing an overall configuration of a walking route recommendation device according to an embodiment of the present invention. This walking route recommendation device includes a mobile terminal UT possessed by a user U to be measured and a server device SV, and performs data communication between the mobile terminal UT and the server device SV via a network NW. It is possible.

  The network NW is composed of, for example, an IP (Internet Protocol) network represented by the Internet and a plurality of access networks for accessing the IP network. As the access network, a 3G mobile phone network, a wireless local area network (LAN), or the like is used.

By the way, the portable terminal UT has the following functions. FIG. 2 is a block diagram showing the functional configuration.
The mobile terminal UT includes, for example, a smart phone, includes a control unit 1, a storage unit 2, and a wireless unit 3, and further includes an acceleration sensor 4, a GPS receiver 5, an input device 6, and a display device 7. The wireless unit 3 is connected to a base station included in the network NW, and performs data communication from the base station to the server apparatus SV via the IP network. The input device 6 is composed of, for example, a touch panel type input device, and accepts operations related to mail transmission / reception, web access, and the like, and is used to accept an input of a walking destination in this embodiment. The display device 7 uses liquid crystal or organic EL, for example, and in addition to displaying various menus, mails, and Web data, in this embodiment, it is used for displaying recommended information on walking routes transmitted from the server device SV. It is done.

  The acceleration sensor 4 comprises a triaxial acceleration sensor, measures the acceleration of each of the three axes at a constant measurement cycle, digitizes the measurement signal, and outputs the digitized signal to the control unit 1. The GPS receiver 5 receives GPS signals transmitted from a plurality of GPS satellites (not shown), digitizes the received GPS signals, and outputs them to the control unit 1.

  The storage unit 2 uses a non-volatile memory that can be written and read at any time, such as a NAND flash memory. As a storage area necessary for realizing an embodiment of the present invention, an acceleration data storage unit 21, A gait data storage unit 22 and a position data storage unit 23 are provided. The acceleration data storage unit 21 is used to store acceleration data obtained by the acceleration measurement unit 11 described later. The gait data storage unit 22 is used to store gait data calculated by the gait calculation unit 12 described later. The position data storage unit 23 is used for storing the position data of the terminal calculated by the position measurement unit 13 described later.

  The control unit 1 has a central processing unit (CPU). As control functions necessary for realizing an embodiment of the present invention, an accelerometer side unit 11, a gait calculation unit 12, a position measurement unit 13, and the like. , A measurement data transmission control unit 14, a destination information setting control unit 15, and a recommended route display control unit 16. These control function units are realized by causing the CPU to execute application programs stored in a program memory (not shown).

  The accelerometer side unit 11 takes in the acceleration detection data for each of the three axes from the acceleration sensor 4 at a constant measurement cycle, and associates the fetched acceleration data with information representing the measurement time to store the acceleration data storage unit of the storage unit 2. The process to store in 21 is performed. The measurement cycle is set to continuously measure over a preset unit measurement period (10 seconds), for example, at a time interval of 20 msec, that is, a sampling rate of 50 Hz.

  The gait calculation unit 12 calculates gait data representing the characteristics of the walking motion of the user U based on the acceleration data stored in the acceleration data storage unit 21. Then, a process of storing the calculated gait data in the gait data storage unit 22 in association with information representing the date and time of the unit measurement period is performed.

The gait data includes, for example, frequency analysis by fast Fourier transform, autocorrelation analysis, RMS (Root Mean Square) value calculation, integral value for acceleration measurement values in the x-axis, y-axis, and z-axis directions. It is calculated by performing each calculation process. However, in addition to these processes, if there is a calculation process for quantitatively expressing the characteristics of the gait, it may be added to or replaced with the above process.
In order to accurately measure the movement of the body of the user U during walking, the acceleration sensor 4 is preferably attached to the center of gravity of the body of the user U, for example, the lumbar region. You may attach in another position without restricting.

  The position measurement unit 13 calculates position data represented by latitude and longitude based on the GPS signal received by the GPS receiver 5 at regular time intervals. Then, a process of storing the calculated position data in the position data storage unit 23 in association with information indicating the measurement time is performed.

  The measurement data transmission unit 14 reads untransmitted gait data and position data from the gait data storage unit 22 and the position data storage unit 23 at regular or arbitrary timings, and the read gait data and A process of transmitting the position data from the wireless unit 3 to the server device SV is performed. Note that the gait data and the position data may be transmitted to the server device SV every unit measurement period.

  The destination information setting control unit 15 uses the input device 6 to input the destination information from the input device 6 when information indicating a walking destination, for example, a place name, a facility name, or an address, is input by the input operation of the user U. The data is taken in and transmitted from the wireless unit 3 to the server device SV.

  The recommended route display control unit 16 performs a process of displaying the received recommended information on the walking route on the display device 7 when the wireless unit 3 receives the recommended information on the walking route transmitted from the server device SV. .

On the other hand, the server device SV has the following functions. FIG. 3 is a functional block diagram showing the configuration.
That is, the server device SV includes a control unit 8, a storage unit 9, and a communication unit 10. The communication unit 10 performs data communication with the mobile terminal UT via the network NW.

  The storage unit 9 includes a large-capacity storage device such as an HDD. As a storage area necessary for carrying out an embodiment of the present invention, a measurement data storage unit 91 and an elevation information database (elevation information DB) are provided. ) 92 and a map information database (map information DB) 93. The measurement data storage unit 91 is used for storing gait data and position data received by a measurement data reception processing unit 81 described later. The altitude information DB 92 stores data representing the altitude of the point in association with the position data (latitude and longitude). The map information DB 93 stores map data in association with latitude and longitude.

  The control unit 8 is composed of a computer. As control functions necessary for carrying out one embodiment of the present invention, a measurement data reception processing unit 81, a gait change calculation unit 82, a recommended route calculation unit 83, and a recommended route are provided. A transmission control unit 84 is provided. These control functions are realized by causing the computer to execute an application program stored in a program memory (not shown).

  The measurement data reception processing unit 81 receives this measurement data via the communication unit 10 every time measurement data is transmitted from the mobile terminal UT, and the gait data and altitude difference data included in the received measurement data. Is stored in the measurement data storage unit 91 in association with the identification information (terminal ID or user ID) of the user U who is the transmission source mobile terminal UT or the user.

The gait change calculation unit 82 has a function of performing the following processing for each unit measurement period.
(1) A process of reading user's gait data in a corresponding period from the measurement data storage unit 91 and calculating a gait change amount based on the read gait data. The amount of change in gait may be calculated by linearly differentiating accumulated data, or may be calculated using a method such as using a difference between the start time and end time of the corresponding period.
(2) Processing for comparing the amount of gait change calculated in (1) with a preset first threshold value and determining whether or not a gait change exceeding the first threshold value has occurred.
(3) When it is determined as a result of the determination in (2) that a gait change exceeding the first threshold has occurred, the position data history of the user in the corresponding period is read from the measurement data storage unit 91, and this The altitude data at the position is read from the altitude information DB 92 based on the read position data history. And the process which calculates the altitude difference in the area where the user moved in the said measurement period based on this read altitude data.
(4) A process of comparing the elevation difference calculated in (3) with a second threshold value set in advance to determine whether the elevation difference exceeds the second threshold value.

  When the gait change calculation unit 82 determines that a change in gait exceeding the first threshold has occurred and the recommended route calculation unit 83 determines that the elevation difference does not exceed the first threshold In addition, based on the destination input by the user, a process of selecting a walking route recommended for walking in the section from the current position to the destination is performed. This selection process is performed by extracting a plurality of walking path candidates from the map information DB 93 and comparing the distance and the altitude difference between the extracted walking path candidates.

  The recommended route transmission control unit 84 generates information for recommending the walking route selected by the recommended route calculating unit 83 to the user U, and directs the generated recommended information to the mobile terminal UT of the user U as a communication unit. Processing to transmit from 10 is performed. This walking route recommendation information is formed by superimposing a route pattern connecting the current position and the destination on the map data of the corresponding area read from the map information DB 93.

(Operation)
Next, the operation of the apparatus configured as described above will be described.
In the mobile terminal UT, the gait information measurement operation is executed as follows. That is, in the mobile terminal UT, the accelerometer side unit 11 is activated while the user U is walking, and under the control of the acceleration measurement unit 11, the acceleration of each of the three axes from the acceleration sensor 4 at a constant period (for example, 20 msec). Detection data is taken in, and the taken acceleration data for each of the three axes is sequentially stored in the acceleration data storage unit 21 in association with information representing the measurement time. This acceleration data acquisition / accumulation process is repeatedly executed until a preset unit measurement period (for example, 10 seconds) elapses.

  When the acceleration data for the unit measurement period is acquired, the gait calculation unit 12 is subsequently activated in the mobile terminal UT, and calculation processing for calculating the gait by the gait calculation unit 12 is as follows. Done. That is, acceleration measurement values in the x-axis, y-axis, and z-axis directions are read from the acceleration data storage unit 21 at each measurement time, and frequency analysis by fast Fourier transform is performed on the read acceleration measurement values. Data analysis processing such as autocorrelation analysis, RMS (Root Mean Square) value calculation, and integral value calculation is executed. The gait data obtained by this analysis process is stored in the gait data storage unit 22. Examples of gait data calculation processing include: Minoru Yamada et al., “Evaluation of Gait Abnormality Based on Trunk Sensation Acceleration Derived Gait Index”, Physical Therapy, Vol. 33, No. 1, pages 14-21 2006 It is described in detail in the literature.

  In the mobile terminal UT, in parallel with the acceleration measurement process, the measurement process of the current position of the terminal is performed under the control of the position measurement unit 13 as follows. That is, GPS reception signals are taken into the control unit 1 from the GPS receiver 5 at regular time intervals, and the latitude and longitude representing the current position of the terminal UT is calculated based on the GPS reception signals. The calculated latitude and longitude are sequentially stored in the position data storage unit 23 as position data together with the measurement time.

Then, when gait data and position data for a predetermined period set in advance are accumulated in the gait data storage unit 22 and the position data storage unit 23, respectively, the portable terminal UT controls under the control of the measurement data transmission control unit 14. The gait data and position data for the predetermined period are read from the gait data storage unit 22 and the position data storage unit 23, and the read gait data and position data for the predetermined period are measured data. It is transmitted from the wireless unit 3 to the server device SV.
Thereafter, similarly, in the portable terminal UT, the above-described acceleration measurement process, gait calculation process, and position measurement process are repeatedly performed during the walking period of the user U.

On the other hand, the server apparatus SV executes the following processing.
That is, when the gait information is transmitted from the mobile terminal UT, the measurement data reception processing unit 81 performs the measurement data reception process in the server device SV. The received measurement data is stored in the measurement data storage unit 91 in association with the terminal ID of the transmission source mobile terminal UT or the user ID of the user U who is the owner.

  Now, it is assumed that measurement data for a preset unit measurement time is accumulated in the measurement data storage unit 91. Then, in the server device SV, the following process is performed by the gait change calculation unit 82. FIG. 4 is a flowchart showing the processing procedure and processing contents.

  In other words, when it is detected in step S12 that the unit measurement time has elapsed while the gait data and the position data are being accumulated in step S11, in step S13, the measurement data storage unit 91 The user's gait data in the unit measurement period is read, and the read gait data is linearly differentiated, or the difference between the gait data at the start time and end time of the fixed period is calculated as described above. The amount of change in gait data is calculated. In step S14, the calculated gait change amount is compared with a first threshold value, and it is determined whether or not a gait change exceeding the first threshold value has occurred.

  As a result of the determination, it is determined that a change in gait exceeding the first threshold has occurred. Then, in step S15, the position data history of the user in the corresponding period is read from the measurement data storage unit 91, and the altitude data at the position is read from the altitude information DB 92 based on the read position data history. Then, based on the read altitude data, the altitude difference in the section in which the user has moved during the unit measurement period is calculated. Then, in step S16, the calculated elevation difference is compared with a second threshold value, thereby determining whether or not the elevation difference exceeds the second threshold value.

  As a result of the determination in step S16, if the altitude difference exceeds the second threshold value, the change in gait that exceeds the first threshold value is due to the large difference in the walking path. It returns to step S11 as it is. That is, it is determined that there is no significant change in the physical condition of the user U, and the gait data and position data acquisition / accumulation processing is subsequently performed.

  On the other hand, as a result of the determination in step S16, if the altitude difference does not exceed the second threshold, the gait has changed greatly despite the user U walking on a flat route. It is judged that he / she is tired. In this case, the gait change calculation unit 82 generates a route change request in step S <b> 17 and notifies the recommended route calculation unit 83 of this request.

When the route change request is notified, the recommended route calculation unit 83 performs a walking route recommendation process as follows. FIG. 5 is a flowchart showing the processing procedure and processing contents.
That is, when the notification of the route change request is detected in step S21, the recommended route calculation unit 83 first performs processing of acquiring current position data and information representing the next destination from the portable terminal UT in step S22. The information representing the destination is information input by the user U at the input device 6 at the mobile terminal UT, and is sent from the mobile terminal UT under the control of the destination information setting control unit 15.

  Next, in step S23, the map data including the current position and the destination of the mobile terminal UT acquired from the map information DB 93 is read out, and in step S24, the altitude information of each location of the read map data from the altitude information DB 92 is read out. Is read out. The map data includes road information and distance information. Subsequently, in step S25, a plurality of walking path candidates from the acquired current position to the destination are extracted based on the walking distance. In step S26, the extracted plurality of walking path candidates are compared with each other, and one recommended walking path is selected from these.

This walking route candidate comparison process is performed as follows, for example. FIG. 6 is a diagram for explaining the processing contents.
In other words, suppose that there are two walking path candidates SAD and SBD that pass through different waypoints A and B between the current position S and the destination D. The distances of these walking route candidates are SA = a, SB = b, AD = c, BD = d, the highest elevation on route A is ΔH, and the highest elevation on route B is Δh. Further, it is assumed that (a + c) <(b + d) and that the route A is currently recommended and presented to the user U.

In this state, if the route change request is notified from the gait change calculation unit 82 to the recommended route calculation unit 83 before the user arrives at the current location S, the recommended route calculation unit 83 uses the following formula to calculate the distance between routes. A comparison is made.
If (((a + c) * ΔH− (b + d) * Δh)> α)
then (changeroute (AtoB))
That is, the product of the length of the walking path and the altitude is compared between the currently recommended walking path and the comparison target walking path, and if the difference exceeds a certain threshold value α, the recommended path becomes the comparison target path. Be changed.

  When the recommended walking route is changed as described above, the recommended route transmission control unit 84 is activated in step S27 in the server SV, and is changed by the recommended route calculation unit 83 under the control of the recommended route transmission control unit 84. Information for recommending the walking path to the user U is generated. Then, the generated walking route recommendation information is transmitted from the communication unit 10 to the mobile terminal UT of the user U.

  In the portable terminal UT, when the recommended information on the walking route is sent from the server device SV, the recommended information is displayed on the display device 7 under the control of the recommended route display control unit 16. The recommended information of the walking route is composed of the map data in which the route pattern connecting the current location (start) and the destination (goal) is displayed in an overlapping manner. Note that when the recommended walking path information is received, the mobile terminal UT may use an alarm function or a vibration function to notify the user U that the recommended walking path has been changed.

  FIG. 7 shows a display example of recommended information for walking routes when no route change is required. On the other hand, FIG. 8 shows the recommended walking route when it is determined that the route needs to be changed in comparison with the route before the change. (A) shows the recommended walking route (recommended route) before the change, (b ) Shows the recommended walking path (recommended route) after the change. In this example, the recommended route before the change is a route with a short distance but a large altitude difference on the way, while the recommended route after the change is a route with a long distance but a small altitude difference on the way.

  As described above in detail, in one embodiment, in the mobile terminal UT, the acceleration of the walking motion of the user U is measured, and the gait representing the characteristics of the walking motion of the user U based on the acceleration data representing the measurement result. Calculate the data. At the same time, the current position of the user U is measured to obtain position data representing the measurement result, and the position data and the gait data are transmitted from the portable terminal UT to the server device SV. In contrast, when the destination information is sent from the mobile terminal UT, the server device SV searches the map information DB 93 based on the position data and the destination information to generate a plurality of walking route candidates. From among the plurality of generated walking path candidates, a walking path suitable for the user U is selected based on the received gait data, and the selected walking path is transmitted as recommendation information to the mobile terminal UT. And displayed on the display device 7.

  Therefore, gait data is calculated based on the acceleration of the walking motion of the user U, and the calculated gait data is also selected from a plurality of walking path candidates that can be set between the current position and the destination. The walking route is selected and presented to the user U. For this reason, it is possible to present the user U with a more appropriate walking route in consideration of the degree of fatigue that appears as a change in the gait of the user U.

  Also, the gait data, position data, and destination information of the user U are transferred from the mobile terminal UT to the server device SV, and an appropriate walking route selection process is performed in the server device SV based on these information and data. . For this reason, it is not necessary to provide the mobile terminal UT with the map information DB 93 and a processing function for generating a walking route from the map information DB 93, thereby reducing the memory capacity of the mobile terminal UT and the processing load. It becomes possible.

[Other Embodiments]
In the above embodiment, a series of walking route recommendation processing from measurement of acceleration and current position to selection of a walking route to be recommended and its presentation processing is shared between the mobile terminal UT and the server device SV. However, the present invention is not limited to this, and the above series of walking route recommendation processing may all be executed in the mobile terminal UT. In this way, the mobile terminal UT can independently recommend and present a walking route without relying on the server device SV. This is because, for example, when the mobile terminal UT exists outside the wireless communication area of the network NW, or even when the communication environment is deteriorated even within the wireless communication area, the optimal walking route for the user Can be presented.

In addition, the mobile terminal UT is provided with only an acceleration and position measurement function and a transmission function of the measurement data, and the server device SV receives gait data and the like based on the acceleration data and the position data transmitted from the mobile terminal UT. Calculation may be performed.
In addition, the type and configuration of the portable terminal, the configuration of the server device and the processing content thereof, and the like can be variously modified and implemented without departing from the gist of the present invention.

  In short, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  U ... user, UT ... user terminal, NW ... network, SV ... server device, 1, 8 ... control unit, 2, 9 ... storage unit, 3 ... wireless unit, 4 ... acceleration sensor, 5 ... GPS receiver, 6 ... Input device 7 ... Display device 10 ... Communication unit 11 ... Acceleration measurement unit 12 ... Gait calculation unit 13 ... Position measurement unit 14 ... Measurement data transmission control unit 15 ... Destination information setting control unit 16 ... recommended route display control unit, 21 ... acceleration data storage unit, 22 ... gait data storage unit, 23 ... position data storage unit, 81 ... measurement data reception control unit, 82 ... gait change calculation unit, 83 ... recommended route calculation , 84 ... recommended route transmission control unit, 91 ... measurement data storage unit, 92 ... altitude information database, 93 ... map information database.

Claims (8)

An acceleration measuring means for measuring acceleration of a user's walking motion and obtaining acceleration data representing the measurement result;
Based on the acceleration data obtained by the acceleration measuring means, gait calculating means for calculating gait information representing the characteristics of the user's walking motion;
Position measuring means for measuring the current position of the user and obtaining position data representing the measurement result;
Input means for receiving input of information representing a destination by the user;
A map information database storing map information including at least the walking area of the user;
Based on the position data obtained by the position measuring means and information representing the destination input by the input means, the map information database is searched to generate a plurality of walking route candidates, and the generated Walking path selection means for selecting a walking path suitable for the user based on gait information calculated by the gait calculation means from among a plurality of walking path candidates;
A walking route recommendation device comprising: presenting means for presenting the selected walking route to the user. A walking route recommendation device comprising a mobile terminal possessed by a user and a server device that performs data transmission between the mobile terminal and a communication network,
The portable terminal is
An acceleration measuring means for measuring acceleration of a user's walking motion and obtaining acceleration data representing the measurement result;
Based on the acceleration data obtained by the acceleration measuring means, gait calculating means for calculating gait information representing the characteristics of the user's walking motion;
Position measuring means for measuring the current position of the user and obtaining position data representing the measurement result;
Input means for receiving input of information representing a destination by the user;
The gait information calculated by the gait calculating means, the position data obtained by the position measuring means, and the information indicating the destination input by the input means are sent to the server device via the communication network. A transmission means for transmitting;
Means for receiving recommendation information of a walking route transmitted from the server device and presenting it to the user;
The server device
A map information database storing map information including at least the walking area of the user;
Means for receiving gait information, position data and information representing a destination transmitted from the portable terminal via the communication network;
The map information database is searched based on the received position data and information representing the destination to generate a plurality of walking path candidates, and the received received one of the plurality of generated walking path candidates is received. Walking route selection means for selecting a walking route suitable for the user based on the gait information;
A walking path recommendation device comprising: means for transmitting the selected walking path as the recommendation information to the portable terminal via the communication network. The walking route selection means includes
An altitude calculation means for calculating an altitude difference in a section from the first measurement position to the second measurement position based on the measured position data and the map information database;
Means for calculating a change in gait information of the user in a section from the first measurement position to the second measurement position;
Based on the measured position data and the information indicating the input destination, the map information database is searched to generate a plurality of walking route candidates in the section from the second measurement position to the destination. Means to
Selection means for selecting a walking route suitable for the user from the plurality of generated walking route candidates based on the calculated change in gait information and the calculated difference in elevation. The walking route recommendation device according to claim 1, wherein:   The selecting means is configured to generate the plurality of generated gaits when a change in the calculated gait information exceeds a first threshold value and the calculated altitude difference is equal to or less than a second threshold value. 4. The walking route recommendation device according to claim 3, wherein a walking route having an elevation difference equal to or smaller than a third threshold value is selected from the route candidates. A process of measuring acceleration of a user's walking motion and obtaining acceleration data representing the measurement result;
A process of calculating gait information representing the characteristics of the user's walking motion based on the obtained acceleration data;
Measuring the current position of the user and obtaining position data representing the measurement results;
Accepting input of information representing the destination by the user;
A map information database is searched based on the obtained position data and information representing the input destination to generate a plurality of walking path candidates, and from among the generated plurality of walking path candidates, Selecting a walking route suitable for the user based on the calculated gait information;
And a step of presenting the selected walking route to the user. The process of selecting the walking path candidate is:
A process of calculating an elevation difference in a section from a first measurement position to a second measurement position based on the measured position data and the map information database;
Calculating a change in gait information of the user in a section from the first measurement position to the second measurement position;
The map information database is searched based on the measured position data and the information representing the input destination, and a plurality of walking route candidates in the section from the second measurement position to the destination are generated. Process,
Selecting a walking route suitable for the user from the plurality of generated walking route candidates based on the change in the calculated gait information and the calculated elevation difference. The walking route recommendation method according to claim 5.   The step of selecting the walking route candidate includes the generation when the change in the calculated gait information exceeds a first threshold value and the calculated altitude difference is equal to or less than a second threshold value. The walking route recommendation method according to claim 6, wherein a walking route having an altitude difference equal to or smaller than a third threshold value is selected from the plurality of walking route candidates.   The program which makes the computer with which the said gait measuring device performs the process of each means with which the gait measuring device in any one of Claims 1 thru | or 4 is equipped.

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