JP2003177032A - Apparatus, method, and program for information processing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display the present position of a user who walks, at a low cost by a simple configuration and rapidly. <P>SOLUTION: An extended module 11 equipped with an acceleration sensor is fitted into a memory card slot formed in the upside surface of a PDA 1, in place of a memory card. The extended module 11 calculates the number of steps of the user, on the basis of an acceleration detected by the acceleration sensor, and calculates a travel of the user, on the basis of the computed number of steps and the stride of the user. A CPU 51 calculates a position on a route leading to destination, which corresponds to the present position of the user on the basis of the computed travel. The CPU 51 causes a display portion 2 to display a mark representing the present position, along with a map. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus and method, and a program, and more particularly to an information processing apparatus and method and a program for displaying a current location together with a map.

[0002]

2. Description of the Related Art Recently, car navigation systems have become popular. According to this car navigation system, a starting point and a destination can be set, and a route from the starting point to the destination can be searched and displayed. The user can move to the destination by, for example, a car according to the searched (displayed) route.

In addition, a PDA (Personal Digital Assistant)
GPS (Global Positio
ning System), a memory card equipped with a device with a function of ning system is installed, and a portable navigation system that can be easily carried by a user has been introduced.

[0004]

However, a device having a GPS function is complicated and expensive. Further, the portable information terminal device equipped with the device having the GPS function has a problem that the size of the device itself becomes large.

Furthermore, it may take some time to receive GPS position information, such as in a building or in an underground mall.
In some cases, GPS location information cannot be received.

The present invention has been made in view of such circumstances, and an object thereof is to make it possible to display the present location of a walking user inexpensively, with a simple structure, and quickly. To aim.

[0007]

An information processing apparatus according to the present invention comprises first detecting means for detecting acceleration of a user's walking and movement for calculating a moving distance of the user based on the detected acceleration. Based on the distance calculating means, the current position calculating means for calculating the position on the route to the destination corresponding to the current position of the user based on the calculated moving distance, and the current position together with the map based on the calculated position. And a display control means for controlling the display of the mark indicating.

The display control means controls the display so as to display a map or a mark indicating the current position at a predetermined angle with respect to the display screen based on the traveling direction on the route corresponding to the current position to the destination. You can

The information processing apparatus further includes an acquisition unit for acquiring an instruction to move forward or backward, and the current position calculating unit determines a destination corresponding to the current position of the user based on the acquired instruction to move forward or backward. The position on the route to reach can be calculated.

The information processing apparatus is further provided with a second detecting means for detecting the angular acceleration due to the walking of the user, and a direction calculating means for calculating the direction of the user based on the detected angular acceleration, and the display is provided. The control means may control the display so as to display a map or a mark indicating the current position at a predetermined angle with respect to the display screen based on the calculated orientation of the user.

According to the information processing method of the present invention, a detection step of detecting an acceleration caused by walking of a user, a moving distance calculating step of calculating a moving distance of the user based on the detected acceleration, and a calculated movement. A current position calculation step that calculates the position on the route to the destination corresponding to the current position of the user based on the distance, and a display that controls the display of the mark indicating the current position together with the map based on the calculated position And a control step.

The program of the present invention causes a computer of an information processing apparatus having a detection device for detecting an acceleration due to walking of a user, to a moving distance calculating step for calculating a moving distance of the user based on the detected acceleration. , The current position calculation step of calculating the position on the route to the destination corresponding to the current position of the user based on the calculated movement distance, and the map indicating the current position together with the map based on the calculated position. And a display control step of controlling display.

In the information processing apparatus and method and the program of the present invention, the acceleration due to the walking of the user is detected, the moving distance of the user is calculated based on the detected acceleration, and the calculated moving distance is calculated. Based on this, the position on the route to the destination corresponding to the user's current position is calculated, and based on the calculated position, the display of the mark indicating the current position is controlled together with the map.

[0014]

1 to 3 show a configuration example of a portable navigation system to which the present invention is applied.

FIG. 1 shows a PDA (Personal) in which a memory card slot (not shown) is equipped with an expansion module 11 having an acceleration detecting function in place of the memory card.
It is a front view of Digital Assistant) 1. FIG. 2 is a left side view of the PDA 1 to which the expansion module 11 is attached. FIG. 3 shows that the expansion module 11 is installed.
It is a top view of PDA1.

The PDA 1 has a housing formed in a size that can be held and operated with one hand. A memory card slot and an infrared communication unit 60 (FIG. 4) for exchanging information with other devices using infrared communication are provided on the upper portion of the PDA 1. In addition to this, a wireless LAN (not shown) for further wireless communication by Bluetooth (trademark)
Etc. may be provided.

On the lower surface of the PDA 1, a modem (not shown) for connecting to the public line network and a USB for exchanging various data.
A (Universal Serial Bus) port or an RS-232C port (neither is shown) or the like is provided. Also PD
A1, display 2, key 3, and jog dial 4
Etc. are provided.

The display unit 2 is composed of a thin display device such as a liquid crystal display device and displays an image such as a map, an icon, a thumbnail or a text. A touch pad 2a is provided below the display unit 2. The user presses the display unit 2 and the touch pad 2a with a finger or a pen to input predetermined data or operation instruction to the CPU 51 (FIG. 4) of the PDA 1.

The key 3 is operated by the user when inputting predetermined data or operation instructions to the CPU 51.

As shown in FIG. 2, the jog dial 4 provided on the left side surface of the PDA 1 has, for example, an A in the figure when an icon, thumbnail or text displayed on the display unit 2 is selected by the user. A rotation operation is performed in the direction of arrow B or the direction of arrow B, or a pressing operation is performed on the main body side. For example, when the jog dial 4 is rotated while the display unit 2 displays a plurality of icons, a desired icon is selected from the plurality of icons and the jog dial 4 is pressed toward the main body. At this time, the selected icon is confirmed. Then, when the confirmed icon corresponds to the application program, the application program is started.

Further, the operation of rotating the jog dial 4 while pressing the jog dial 4 toward the main body may be made to correspond to a command different from the normal rotation operation.
The contents of the operation to and the instruction corresponding to the operation are not limited to this.

As shown in FIG. 3, the expansion module 11 having an acceleration detecting function is mounted in a memory card slot (not shown) provided on the upper surface of the PDA 1 instead of the memory card. .

FIG. 4 is a diagram showing the overall configuration of the expansion module 11. The expansion module 11 is composed of a mounting portion 21 and a coupling portion 25. The mounting portion 21 has a shape substantially corresponding to a memory card, for example, a Memory Stick (trademark). The mounting portion 21 is mounted on the PDA 1 instead of the memory card.

FIG. 5 is a view showing the structure of the front surface (FIG. 5A) and the rear surface (FIG. 5B) of the mounting portion 21. The outer shape of the mounting portion 21 is made of a conductor such as a heavy metal such as iron or copper, or a light metal such as aluminum or magnesium. As shown in FIG. 3B, a 10-pin terminal 31 is formed on the mounting portion 21, and this terminal 31 is connected to the PDA 1
When attached to, it is electrically connected to the internal electric circuit. As a result, the electronic components inside the expansion module 11 are electrically connected to the electronic components of the main body of the PDA 1.

Inside the mounting portion 21, an EEPROM (Electric) is a non-volatile memory that can be electrically rewritten and erased.
A flash memory device, which is a type of ally Erasable Programmable Read-Only Memory), is stored in the PDA 1, and the expansion module 11 has a terminal 31.
Various data such as images, sounds, and music can be written and read via the. Also, the mounting part 2
1 is provided with an erroneous erasure prevention switch 32 so as to prevent erroneous erasure of data stored therein.

The terminal 31 is made of a conductor,
The terminal 31 is insulated from the conductor that forms the outer shape of the mounting portion 21.

However, the ground electrode of the terminal 31 is electrically connected to the conductor of the mounting portion 21. This allows
The ground potential can be stably ensured, and malfunctions due to external noise and electromagnetic waves can be suppressed. Further, it becomes possible to improve the signal-to-noise ratio, reduce the radiated electromagnetic waves, and reduce the noise.

As shown in FIG. 4, the connecting portion 25 is a body 22 integrally connected to the mounting portion 21.
And a rotating portion 23 that is rotatably coupled to the main body 22 via a shaft 24. In the rotating unit 23,
The acceleration sensor 121 (FIG. 7) is incorporated. Body 2
2 includes an acceleration sensor 12 built in the rotating unit 23.
The signal processing unit 111 (FIG. 7) that processes the signal indicating the acceleration supplied from the No. 1 is incorporated. The entire outer shape of the main body 22 is formed of a conductive member.

Since the rotating unit 23 is configured to be rotatable with respect to the mounting unit 21, even if the posture in which the PDA 1 is used changes, a troublesome operation is not required, and the PDA 1 can be operated as desired. The directional acceleration can be detected.

For example, when the PDA 1 is used with the display unit 2 parallel to the ground, the rotating unit 23 is rotated so as to be parallel to the display unit 2, while the display unit 2 is rotated.
When the PDA 1 is used in a state in which the PDA is vertical to the ground, the acceleration sensor 121 (FIG. 7) is built in by rotating the rotary unit 23 so as to be perpendicular to the display unit 2. The rotating unit 23 that is always substantially horizontal to the ground can detect acceleration in a desired direction without electrically changing the axial direction of acceleration detection.

By constructing the rotating portion 23 of a highly rigid metal material, plastic, or the like, the walking force is more accurately transmitted to the built-in acceleration sensor 121 (FIG. 7), and the expansion module 11 is It becomes possible to detect the acceleration, and thus the distance traveled by walking, more accurately.

FIG. 6 is a block diagram showing an electrical configuration example of the PDA 1.

The CPU 51 synchronizes with the clock signal supplied from the oscillator 52, and flash ROM (Read-only Memory).
y) 53 or EDO DRAM (Extended Data Out Dynamic R)
Various programs such as an operating system or an application program stored in the andom-Access Memory) 54 are executed.

The Flash ROM 53 is composed of a flash memory, which is a kind of EEPROM, and generally stores basically fixed data of the program used by the CPU 51 and the parameters for calculation. EDO DRAM 54 is CPU51
Stores the program executed by and the parameters that change appropriately during the execution.

Module interface (I / F) 55
Acquires the data (for example, acceleration signal or map data) supplied from the expansion module 11 mounted on the PDA 1 and supplies various data supplied from the CPU 51 to the expansion module 11.

The USB interface (I / F) 56 receives data or a program from the drive 71, which is a connected USB device, in synchronization with the clock signal supplied from the oscillator 57, and is supplied from the CPU 51. The data is supplied to the drive 71.

The drive 71 reads the data or program recorded on the magnetic disk 81, the optical disk 82, or the magneto-optical disk 83, which is mounted as necessary, and the data or program is read via the USB interface 56. , CPU51 or EDO DRAM54
Supply to. Also, the drive 71 records data or a program on the mounted magnetic disk 81, optical disk 82, or magneto-optical disk 83.

The Flash ROM 53, the EDO DRAM 54, the module interface 55, and the USB interface 56 are connected to the CPU via the address bus and the data bus.
It is connected to 51.

The display unit 2 receives data from the CPU 51 via the LCD bus and displays an image or characters corresponding to the received data. When the display unit 2 or the touchpad 2a is operated, the touchpad control unit 58 receives data (for example, indicating the touched coordinates) corresponding to the operation from the display unit 2 or the touchpad 2a,
A signal corresponding to the received data is supplied to the CPU 51 via the serial bus.

EL (Electro luminescence) driver 59
Controls the brightness of the display of the display unit 2 by operating the electroluminescent element provided on the back side of the liquid crystal display unit of the display unit 2.

The infrared communication unit 60 uses a UART (Universal as
ynchronous receiver-transmitter)
The data received from the device is transmitted as an infrared signal to another device (not shown), and the infrared signal transmitted from the other device is received and supplied to the CPU 51. PDA1 also
It is possible to communicate with other devices via UART.

The voice reproduction unit 62 is composed of a speaker, a voice data decoding circuit, and the like, and decodes and reproduces voice data stored in advance or voice data received from another device. , Output audio. For example, the audio reproducing unit 62 uses the buffer 5
The audio data supplied from 1 is reproduced, and the audio corresponding to the data is output.

The power supply circuit 63 is equipped with a mounted battery 72 or a connected AC (Alternating current).
The power supply voltage supplied from the adapter 73 is converted, and the necessary power is supplied to the CPU 51 to the audio reproduction unit 62, respectively.

The communication section 64 is an interface such as RS-232C and is connected to a communication module or the like.
The communication unit 64 connects to the Internet or the like via the communication module, stores the data (for example, e-mail, etc.) supplied from the CPU 51 in a packet of a predetermined method, and transmits it to other devices via the Internet. Send.
Further, the communication unit 64 outputs to the CPU 51 the data or program stored in the packet received from another device via the Internet.

FIG. 7 is a diagram showing an internal configuration example of the expansion module 11.

The acceleration sensor 121 provided inside the rotating portion 23 of the expansion module 11 corresponds to the acceleration corresponding to the movement in the vertical direction or the movement in the longitudinal direction due to the walking of the user who holds the PDA 1. To detect acceleration,
An acceleration signal indicating acceleration is supplied to the signal processing unit 111.

The signal processing section 1 provided inside the main body 22.
Reference numeral 11 calculates the number of steps of the user holding the PDA 1 based on the acceleration signal indicating the acceleration detected by the acceleration sensor 121.

For example, the signal processing unit 111 extracts from the acceleration signal a signal that corresponds to the vertical movement and has a cycle within a predetermined frequency range. The signal processing unit 111 determines whether the absolute value of the amplitude of the extracted signal exceeds a threshold value stored in advance, and the absolute value of the amplitude of the extracted signal exceeds the threshold value stored in advance. If it is determined that the user is walking,
One is added to the number of steps of the pedestrian for one cycle of the extracted signal.

Further, for example, the signal processing unit 111 uses the acceleration in the front-back direction (direction parallel to the ground) as a basis.
The number of steps of the user holding the PDA 1 may be calculated.

The signal processing unit 111 causes the storage unit 102 to store the calculated step count of the user holding the PDA 1.

Further, the signal processing unit 111 multiplies the preset stride of the user by the number of steps of the user, calculates the moving distance of the user, and stores the calculated moving distance in the storage unit 102.
To memorize. In addition, the signal processing unit 111 adds the calculated moving distance to the sum of the moving distances moved so far,
The storage unit 10 stores the sum of the moving distances obtained by adding the calculated moving distances.
Store in 2.

The step length of the user is the touch pad 2 of the PDA 1.
It may be set from the PDA 1 by operating a or the key 3, or may be calculated from the movement distance and the actual number of steps in the result of a series of navigation processes described later.

It should be noted that the CPU 51 of the PDA 1 executes the process of calculating the number of steps of the user holding the PDA 1, the process of calculating the moving distance, and the process of calculating the moving distance moved so far. Good. In this case,
The expansion module 11 uses the acceleration signal detected by the acceleration sensor 121 via the interface 101 to receive the PDA 1
Supply to.

Storage unit 10 provided inside the mounting unit 21
2 stores communication data such as an acceleration signal processing program and interface protocol data for mutual communication between the PDA 1 and the extension module 11.

Further, in the storage unit 102, map data for the PDA 1 to realize the portable navigation system is divided into predetermined blocks (small areas) and recorded. The map data is data around the area where the PDA 1 is used (for example, Kanto region). Map data is
It is preferably vector data.

Now, the process of recording map data in the expansion module 11 will be described. For example, the map data is expanded by the extension module 11 by the following method.
Is recorded in the storage unit 102 of FIG.

(1) A CD-ROM (Compact Disc-Read Only Memor) in which the expansion module 11 is mounted in the memory card slot of the personal computer and the map data is recorded in the drive of the personal computer.
y) is mounted and the map data is copied (stored) from the CD-ROM to the extension module 11.

(2) The expansion module 11 is installed in the memory card slot of the personal computer or mobile phone.
And downloads map data from a predetermined site via the Internet and stores it in the expansion module 11.

(3) The expansion module 11 is attached to the memory card slot of the PDA 1, the PDA 1 and the mobile phone are connected, the mobile phone is connected to the Internet, the map data is downloaded from a predetermined site, and the expansion module 11 is connected. Remember.

(4) The expansion module 11 is attached to the memory card slot of the PDA 1, the PDA 1 is connected to the terminal installed at the store, and the map data is downloaded from a predetermined server via the terminal to the expansion module 11. Remember.

In this way, the expansion module 11
The expansion module 11 has the following functions so that the PDA 1 functions as a navigation system when attached to the A1.
Map data is stored in advance.

The step count data, the movement distance data, and the past trajectory data stored in the storage unit 102 are sent to the PDA 1 via the interface 101.

The map data may be stored in the Flash ROM 53 or the EDO DRAM 54.

FIG. 8 is a diagram showing an example of the configuration of the acceleration sensor 121. The sensor 151-1 detects the acceleration in the Y-axis direction, which is one of the three orthogonal axes of the three-dimensional space, and
A signal corresponding to the axial acceleration is supplied to the amplifier 152-1. The sensor 151-2 has three orthogonal three-dimensional spaces.
The acceleration in the X-axis direction, which is the other one of the axes, is detected and a signal corresponding to the acceleration in the X-axis direction is supplied to the amplifier 152-2. The sensor 151-3 detects acceleration in the Z-axis direction, which is another one of the three orthogonal axes in the three-dimensional space, and supplies a signal corresponding to the acceleration in the Z-axis direction to the amplifier 152-3.

FIG. 9 is a diagram showing an example of the directions of the X axis, the Y axis, and the Z axis. When the rotation unit 23 of the expansion module 11 mounted on the PDA 1 is rotated so as to be parallel to the display unit 2, the Y axis is aligned with the center of the PDA 1 and the PDA 1.
Is parallel to the line connecting the upper surface of the
The Z axis is parallel to the line connecting the side of PDA1
Parallel to a line perpendicular to.

The amplifier 152-1 amplifies the signal corresponding to the acceleration in the Y-axis direction supplied from the sensor 151-1 and the amplified signal is A / D (Analog / Digital) conversion section 15
Supply to 3-1. The A / D conversion unit 153-1 converts the amplified analog signal corresponding to the acceleration in the Y-axis direction into digital data, and supplies the converted digital data to the interface 154.

The amplifier 152-2 amplifies the signal corresponding to the acceleration in the X-axis direction supplied from the sensor 151-2, and supplies the amplified signal to the A / D converter 153-2. A
The / D converter 153-2 converts the amplified analog signal corresponding to the acceleration in the X-axis direction into digital data,
The converted digital data is supplied to the interface 154.

The amplifier 152-3 amplifies the signal corresponding to the acceleration in the Z-axis direction supplied from the sensor 151-3, and supplies the amplified signal to the A / D converter 153-3. A
The / D converter 153-3 converts the amplified analog signal corresponding to the acceleration in the Z-axis direction into digital data,
The converted digital data is supplied to the interface 154.

The interface 154 is the A / D converter 15
3-2, digital data corresponding to the acceleration in the X-axis direction, digital data corresponding to the acceleration in the Y-axis supplied from the A / D conversion unit 153-1, and A / D conversion unit 153-3 The acceleration data composed of digital data corresponding to the acceleration in the Z-axis direction supplied from the signal processing unit 1
Supply to 11.

Hereinafter, when it is not necessary to individually distinguish the sensors 151-1 to 151-3, they are simply referred to as the sensor 151.

FIG. 10 is a diagram showing an example of the configuration of the sensor 151.

When a force F is applied to an object of mass m, the acceleration a of the object is expressed by equation (1).

[0073] a = F / m (1)

Therefore, the acceleration a can be detected from the force acting on the object.

The plate-shaped piezoelectric element 171 having one end fixed to the case 175 has a weight 172 fixed to the other end. When acceleration is applied to the sensor 151, a force corresponding to the acceleration acts on the weight 172, and the piezoelectric element 171 is distorted in the direction corresponding to the acceleration. The greater the acceleration, the greater the force acting on the weight 172 and the greater the strain of the piezoelectric element 171.

The case 175 is filled with a highly viscous silicon oil 173 in order to damp the vibration of the piezoelectric element 171.

The piezoelectric element 171 generates a voltage corresponding to the magnitude of strain on the side surface corresponding to the direction of strain.

The electrodes 174-1 and 174-2 take out the voltage generated by the piezoelectric element 171 and corresponding to the magnitude of the strain, and output it to the outside of the sensor 151.

The voltage output from the electrodes 174-1 and 174-2, which is generated by the piezoelectric element 171, and which corresponds to the magnitude of strain, forms a signal corresponding to acceleration.

The sensor 151 may be a compression type acceleration sensor or the like, or may be a so-called semiconductor strain gauge. The method of the sensor 151 does not limit the invention according to the present application.

FIG. 11 is a diagram showing an example of the configuration of the program executed by the CPU 51 of the PDA 1 and the data stored in the PDA 1.

The control program 181 executed by the CPU 51, based on the acceleration data supplied from the expansion module 11 and the data corresponding to the rotation of the jog dial 4, analyzes the data indicating the movement of the route analysis module 18.
Supply to 2.

The route analysis module 182 executed by the CPU 51 calculates the current position based on the data indicating the movement supplied from the control program 181, and instructs the map drawing engine 183 to draw a map centered on the current position. .

The route analysis module 182 also searches for a walking route, which is position information indicating a route, based on the designated starting point and destination. The walking route is composed of a list of latitude and longitude, for example.

The PDA 1 sends the starting point, the destination and the map data to a server or a personal computer (not shown) via a network or a telephone line network, and causes the server or the personal computer to search for a walking route. Alternatively, the searched walking route may be received from the server.

Further, the PDA 1 transmits a starting point and a destination to a server or a personal computer (not shown) via a network or a telephone line network, and walks to a server or a personal computer which records map data in advance. The route may be searched and the searched walking route may be received from the server.

The map drawing engine 183 executed by the CPU 51 displays the map on the display unit 2 based on the map data stored in the map database 184 in response to the instruction from the route analysis module 182. The map database 184 is configured in the storage unit 102 and stores map data.

FIG. 12 is a diagram showing an example of the PDA 1 when the departure point, the waypoint, and the destination are set.

In response to the operation of the display unit 2, the touch pad 2a, or the key 3, the route analysis module 18
2 sets the starting point and the destination. The user operates the display unit 2, the touch pad 2a, or the key 3 to set the current position in the route analysis module 182 as a starting point.

When it is desired to start navigation, the user usually knows the current position. For example, when a user exits a predetermined subway station, the user can know the current position by using a sign such as "exit cc exit of bb station on subway aa line", and desires to start navigation. It is rare if you can't know your current location.

The route analysis module 182 causes the map drawing engine 183 to display the icon 201 corresponding to the starting point and the icon 202 corresponding to the destination on the display unit 2 together with the map.

As shown in FIG. 13, the route analysis module 182 responds to the operation of the display unit 2, the touch pad 2a, or the key 3 from the starting point to the destination via the waypoint and the destination. And a walking route 211 corresponding to the searched route is generated. The route analysis module 182 sets, on the searched route, points that divide the searched route for each predetermined distance. For example, the route analysis module 182 sets points that divide the searched route every 0.5 m to 3 m.

As shown in FIG. 14, the route analysis module 182 causes the map drawing engine 183 to display the walking route 211 on the display unit 2 together with the map, the icon 201 corresponding to the starting point, and the icon 202 corresponding to the destination. Display it.

15 to 20 show the map drawing engine 1
FIG. 8 is a diagram illustrating rotation of a map drawn on 83 and displayed on the display unit 2.

As shown in FIG. 15, when the movement is started, the map drawing engine 183 changes the scale to a scale suitable for foot navigation, and the icon 20 corresponding to the starting point is displayed.
Display the map so that 1 is located in the center of the display unit 2.
To display.

Next, as shown in FIG. 16, the map drawing engine 183 rotates the map so that the direction of movement on foot is on the upper side, and displays the rotated map on the display unit 2. , Icon 22 as a mark indicating the current location
1 is displayed on the display unit 2.

The map drawing engine 183 makes the map on the front side of the traveling direction wider than the map on the rear side.
May be displayed on the screen.

Further, the map drawing engine 183 uses the pseudo 3
A dimensional (so-called bird's-eye view) map, either alone or 2
You may make it display on the display part 2 simultaneously with a dimensional map.

As shown in FIG. 17, when the current position reaches the right-turning corner and further moves a predetermined distance, as shown in FIG. 18, the map drawing engine 183 moves upward by walking. As described above, the map is rotated counterclockwise, and the rotated map is displayed on the display unit 2.

When further moving a predetermined distance, FIG.
As shown in, the map drawing engine 183 further rotates the map counterclockwise so that the direction of movement by walking is on the upper side, and displays the further rotated map on the display unit 2.

As shown in FIG.
As indicated by 0, the map drawing engine 183 displays the rotated map on the display unit 2 so that the direction of movement by foot is on the upper side.

As described above, since the map is rotated so that the direction of movement by walking is always on the upper side, when the vehicle makes a right turn at a 90-degree corner, the map drawing engine 183 causes the display unit 2 to display.
Rotate the map displayed on the screen 90 degrees counterclockwise.

The PDA 1 rotates the map so that the direction of movement on foot is always on the upper side and displays it on the display unit 2. Therefore, the user can display the actual scenery in the traveling direction and the display unit 2 on the display. The created map can be easily collated.

21 to 32 are views for explaining the correspondence between the map image displayed on the display unit 2 of the PDA 1 and the position of the user of the PDA 1.

The PDA 1 updates its current position in response to the acceleration corresponding to walking or the rotation of the jog dial 4, and as a result, as shown in FIG. 21, in the map displayed on the display unit 2 of the PDA 1, Icon 221 indicating
When located in the right corner of the department store, the user of the PDA 1 is located in the right corner of the department store, as shown in FIG.

The user can see the actual scenery in the traveling direction, the map displayed on the display unit 2 and the icon 22 indicating the current position.
By comparing with 1, you can know the actual present location.

[0107] Further, if you go straight along the search route, PD
A1 is acceleration corresponding to walking or jog dial 4
The current location is updated in response to the rotation of
As shown in FIG. 24, when the icon 221 indicating the current location is located on the front side of the supermarket on the map displayed on the display unit 2 of the PDA 1, as shown in FIG.
A1 users are located in front of the supermarket.

As shown in FIG. 25, on the map displayed on the display unit 2 of the PDA 1, an icon 221 indicating the current position is displayed.
However, when it is located at the corner of the supermarket and the search route turns left at the corner of the supermarket, as shown in FIG. Can be recognized by.

The PDA 1 updates the current position in response to the acceleration corresponding to walking or the rotation of the jog dial 4, and as a result, when the user turns left at the corner of the supermarket as shown in FIG. As shown in, PDA1
The map displayed on the display unit 2 of is rotated clockwise.
At this time, as shown in FIG. 28, the user of PDA1 is turning left at the corner of the supermarket.

At a so-called irregular intersection, as shown in FIG. 29, on the map displayed on the display unit 2 of the PDA 1,
Since the icon 221 indicating the current location and the search route are displayed, the user of the PDA 1 can surely recognize the turning direction of the irregular intersection as shown in FIG.

When the information of the target object such as an intersection is added to the searched route and the current position is near the target object, the PDA 1 causes the display unit 2 to display additional information of the target object, for example, the intersection. You may make it pop up and display the name of.

The PDA 1 updates the current position in response to the acceleration corresponding to walking or the rotation of the jog dial 4, and as a result, as shown in FIG. 31, in the map displayed on the display unit 2 of the PDA 1, the current position is updated. When the icon 221 indicating the and the icon 202 indicating the destination are connected by a straight line,
As shown in FIG. 32, the user of the PDA 1 can see the destination and can reach the destination.

As described above, since the PDA 1 displays the map and the icon indicating the current position, the user compares the actual scenery in the traveling direction with the icon 221 indicating the map and the current position displayed on the display unit 2. And you can know the actual present location.

FIG. 33 is a flow chart for explaining the navigation processing by the PDA 1 to which the expansion module 11 is attached.

In step S11, the route analysis module 182 determines that the display unit 2 or the touch pad 2a,
Alternatively, a starting point, a waypoint, and a destination are set according to the operation of the key 3.

In step S12, the route analysis module 182 searches for a walking route from the starting point to the destination via the transit point.

In step S13, the route analysis module 182 sets, on the searched route, points for dividing the searched route into predetermined distances. For example, the route analysis module 182 sets a point on the searched route that divides the searched route for each predetermined distance. For example, the route analysis module 182 sets points that divide the searched route for each 1 m.

In step S14, the route analysis module 182 causes the map drawing engine 183 to display the walking route on the map.

In step S15, the route analysis module 182 sets the departure place to the present place.

In step S16, the signal processing unit 111 of the expansion module 11, the control program 181, the route analysis module 182, and the map drawing engine 183 of the PDA 1 execute the processing of displaying the current location corresponding to walking. Details of the processing for displaying the current location corresponding to walking will be described later.

In step S17, the control program 181, the route analysis module 182, and the map drawing engine 183 execute the process of displaying the current position corresponding to the rotation of the jog dial 4. The details of the processing for displaying the current location corresponding to the rotation of the jog dial 4 will be described later.

In step S18, the route analysis module 182 determines whether or not the destination has been reached based on the positions of the present location and the destination. If it is determined that the destination has not been reached, the route analysis module 182 determines whether the destination is reached. Returning to S16, the process of displaying the current position is repeated.

If it is determined in step S18 that the destination has been reached, there is no need to display the current location anymore, and the process ends.

FIG. 34 is a flow chart for explaining the process of displaying the current position corresponding to walking, which corresponds to the process of step S16.

In step S31, the signal processing section 111 of the expansion module 11 clears the sum of the movement distances stored in the storage section 102, which indicates the distance moved so far.

In step S32, the signal processing section 11
1 detects a change in acceleration based on the acceleration signal supplied from the acceleration sensor 121.

In step S33, the signal processing section 11
1 detects the number of steps of a pedestrian based on the change in acceleration, and multiplies the detected number of steps by the stride of the user to calculate the moving distance of the user.

In step S34, the signal processing section 11
1 is the sum of the moving distances stored in the storage unit 102,
The moving distance calculated in the process of step S33 is added. The signal processing unit 111 causes the storage unit 102 to store the sum of the moving distances obtained by adding the moving distances.

In step S35, the signal processing section 11
1 determines whether or not the sum of the movement distances exceeds a threshold corresponding to the distance of the points set in the searched route, and when it is determined that the sum of the movement distances does not exceed the threshold, Returning to step S32, the process of calculating the moving distance and adding the moving distance is repeated.

If it is determined in step S35 that the sum of the movement distances exceeds the threshold value, the distance has moved beyond the distance of the point set in the searched route, so the flow proceeds to step S36 and the route analysis module 182 The process of moving to the point of is executed. Details of the process of moving to the next point will be described later.

In step S37, the signal processing section 11
1 clears the sum of the movement distances stored in the storage unit 102, which indicates the distances moved so far, and the step S
Returning to step 32, the process of calculating the moving distance and moving to the next point is repeated.

As described above, the PDA 1 can detect the number of steps of the user by detecting the acceleration, update the current position in accordance with the moving distance by walking, and display it on the display unit 2.

FIG. 35 is a flow chart for explaining the processing for displaying the current position by rotating the jog dial 4, corresponding to step S17.

In step S51, the control program 181 determines whether or not the jog dial 4 has been rotated one click in a predetermined direction (for example, the direction of arrow A in FIG. 2) based on the signal supplied from the jog dial 4. If it is determined that the jog dial 4 has been rotated by one click in the predetermined direction, the process proceeds to step S52, and the route analysis module 182 and the map drawing engine 183.
To execute the process of moving to the next point, and the process proceeds to step S53.

If it is determined in step S51 that the jog dial 4 has not been rotated by one click in the predetermined direction, the process of moving to the next point is not necessary, so the process of step S52 is skipped. Proceeds to step S53.

In step S53, the control program 181 determines whether or not the jog dial 4 has been rotated one click in the other direction (for example, the direction of arrow B in FIG. 2) based on the signal supplied from the jog dial 4. Is judged,
When it is determined that the jog dial 4 has been rotated by one click in the other direction, the process proceeds to step S54, the route analysis module 182 and the map drawing engine 183 are caused to execute the process of moving to a later point, and the process is performed. Returning to S51, the process of moving points is repeated.

If it is determined in step S53 that the jog dial 4 has not been rotated by one click in the other direction, the process of moving the current position is not necessary, so the process of step S54 is skipped, and the process of step S51 is performed.
Return to and repeat the process of moving points.

Although it has been described that the PDA 1 executes the process of moving the point in response to the rotation of the jog dial 4, for example, in response to the operation of the up key or the down key included in the key 3, the point is moved. The moving process may be executed.

As described above, the PDA 1 has the jog dial 4
The current location can be updated and displayed on the display unit 2 in response to the rotation of.

For example, when the scenery seen from the current actual position is different from the map displayed on the display unit 2, the user
The current position indicated by the PDA 1 can be corrected by rotating the jog dial 4.

Alternatively, the user can match the scenery seen from the actual current position with the map displayed on the display unit 2,
The current position indicated by the PDA 1 can be moved by rotating the jog dial 4.

FIG. 36 is a flow chart for explaining the process of moving to the next point, which corresponds to the process of steps S36 and S52.

In step S71, the route analysis module 182 determines whether or not the present location is the second or later point from the starting point based on the present location, the departure location, and the point of the searched route, and the present location is departed. If it is determined that it is not the second or subsequent point from the point, the map cannot be rotated, so the process proceeds to step S72, and it is determined whether or not the next point exists based on the current position and the point of the search route. .

If it is determined in step S72 that the next point exists, the process proceeds to step S73, the route analysis module 182 moves the current position to the next point, and the process ends.

If it is determined in step S72 that the next point does not exist, the current position cannot be moved to the next point, so the process of step S73 is skipped and the process ends.

If it is determined in step S71 that the current position is the second or later point from the starting point, the map can be rotated, so the flow proceeds to step S74, where the route analysis module 182 determines the current position and the searched route. Based on the point, it is determined whether or not the next point exists.

If it is determined in step S74 that the next point exists, the process proceeds to step S75, and the route analysis module 182 determines that the next point is the current point (current position) and the subsequent point based on the points of the searched route. It is determined whether it is on the straight line connecting the points. When it is determined in step S75 that the next point is on the straight line connecting the current point (current location) and the subsequent point, the map does not need to be rotated, and thus the process proceeds to step S76, where the route analysis module 182 , The current position is moved to the next point, and the process ends.

If it is determined in step S75 that the next point is not on the straight line connecting the current point (current position) and the subsequent point, the map needs to be rotated. Therefore, the process proceeds to step S77 to analyze the route. Module 18
2 is a straight line connecting the current point and the later point,
The angle between the current point and the straight line connecting the next point is calculated.

In step S78, the route analysis module 182 rotates the map based on the calculated angle.

In step S79, the route analysis module 182 moves the current position to the next point, and the process ends.

Next, FIG. 37 is a flowchart for explaining the processing for moving to a later point, corresponding to step S54.

In step S91, the route analysis module 182 determines whether or not the present location is the second or later point from the starting point based on the present location, the departure location, and the point of the searched route, and the present location is departed. If it is determined that it is not the second or subsequent point from the point, the map cannot be rotated, so the process proceeds to step S92, and it is determined whether or not there is a subsequent point based on the current position and the point of the search route. .

If it is determined in step S92 that there is a subsequent point, the process proceeds to step S93, the route analysis module 182 moves the current position to the subsequent point, and the process ends.

If it is determined in step S92 that there is no subsequent point, the current position cannot be moved to the subsequent point, so the process of step S93 is skipped and the process ends.

If it is determined in step S91 that the current position is the second or later point from the starting point, the map can be rotated, so the flow proceeds to step S94, and the route analysis module 182 determines the current position and the searched route. Based on the points, it is determined whether or not there is a subsequent point.

If it is determined in step S94 that there is a subsequent point, the process proceeds to step S95, where the route analysis module 182 determines that the subsequent point is the current point (current location) and the next point based on the points of the searched route. It is determined whether it is on the straight line connecting the points. If it is determined in step S95 that the subsequent point is on the straight line connecting the current point (current position) and the next point, it is not necessary to rotate the map, so the flow proceeds to step S96, where the route analysis module 182 , The current position is moved to a later point, and the process ends.

If it is determined in step S95 that the subsequent point is not on the straight line connecting the current point (current position) and the next point, the map needs to be rotated, so the flow advances to step S97 to analyze the route. Module 18
2 is a straight line connecting the current point and the later point,
The angle between the current point and the straight line connecting the next point is calculated.

In step S98, the route analysis module 182 rotates the map based on the calculated angle.

In step S99, the route analysis module 182 moves the current position to a later point, and the process ends.

As described above, the PDA 1 can rotate the map displayed on the display unit 2 in accordance with the current location.

As described above, the PDA 1 senses the user's walking, updates the current location, and moves the jog dial 4
In response to the operation of, the current location is updated and an icon 221 indicating the current location is displayed on the map. Therefore, the user can view the actual scenery, the map displayed on the PDA 1 and the current location. It is possible to grasp the actual position by comparing with the position of the icon 221 that indicates, and thus to surely reach the destination.

Although there is a car navigation system having a simulation function that does not use GPS or the like, the conventional simulation function has the purpose of displaying the entire image of the route and is independent of the user's walking or the like. It is controlled and is different from the invention according to the present application.

FIG. 38 is a diagram showing another example of the internal configuration of the expansion module 11. The same parts as those shown in FIG. 7 are designated by the same reference numerals, and the description thereof will be omitted.

The angular acceleration sensor 311 provided inside the rotary unit 23 of the expansion module 11 supplies an angular acceleration signal indicating the angular acceleration of the PDA 1 to the signal processing unit 301.

The signal processor 3 provided inside the main body 22.
01 calculates the number of steps of the user holding the PDA 1 based on the acceleration signal detected by the acceleration sensor 121, and grips the PDA 1 based on the angular acceleration signal detected by the angular acceleration sensor 311. Calculate the changed direction of travel, such as the user's right turn or left turn.

It should be noted that, based on the angular acceleration signal detected by the angular acceleration sensor 311, the changed traveling direction such as right turn or left turn of the user holding the PDA 1 is changed to the C direction of the PDA 1.
The PU 51 may be operated.

FIG. 39 is a diagram showing the structure of the angular acceleration sensor 311. Three-axis gyro 3 of the angular acceleration sensor 311
Reference numeral 21 includes vibration gyros 331-1 to 331-3 corresponding to coordinate axes of the X axis, Y axis, and Z axis.

FIG. 40 shows the θ direction around the X axis and ψ around the Y axis.
FIG. 3 is a diagram showing an example of a direction and a φ direction around the Z axis. PDA
1 is mounted on the expansion module 11 of the rotating portion 23
, The Y axis is parallel to the line connecting the center of the PDA 1 and the upper surface of the PDA 1, and the X axis is the center of the PDA 1 and the side surface of the PDA 1 when they are rotated so as to be parallel to the display unit 2. The Z axis is parallel to the line connecting the and, and the Z axis is parallel to the line perpendicular to the display unit 2.

The vibrating gyro utilizes the Coriolis force,
Detects angular acceleration. When a rotating angular velocity is applied to a vibrating object, a Coriolis force is generated in a direction perpendicular to the vibration. This Coriolis force F is expressed as in equation (2).

[0170] F = 2mvω (2) (Where m is mass, v is velocity, and ω is angular velocity)

Therefore, the angular velocity ω is proportional to the Coriolis force F, and by detecting the Coriolis force F,
The rotational angular velocity can be detected.

The vibration gyro 331-1 is provided with a driving piezoelectric ceramic 332-1 and a detecting piezoelectric ceramic 333-1. The driving piezoelectric ceramic 332-1 has an oscillator 33.
An alternating signal which is the oscillation output of 4-1 is applied. In this state, the vibration gyro 331-1 becomes X
When rotated in the θ direction around the axis, the detection piezoelectric ceramic 333
Coriolis force F is applied to -1, and voltage E is generated.

The minute voltage output from the detecting piezoelectric ceramic 333-1 is amplified by the amplifier 335-1 and is
It is converted to digital data in the / D converter 336-1.

The angular velocity ω applied to the vibrating gyro 331-1 and the generated voltage E have a proportional relationship. For example, when rotated rightward around the X axis, the voltage E rises and It is arranged so that the voltage E drops when rotated in the direction.

The vibration gyro 331-2 is provided with a driving piezoelectric ceramic 332-2 and a detecting piezoelectric ceramic 333-2, and the driving piezoelectric ceramic 332-2 has an oscillator 33.
An alternating signal, which is the oscillation output of 4-2, is applied. In this state, the vibration gyro 331-2 becomes Y
When rotated in the ψ direction around the axis, the detection piezoelectric ceramic 333
Coriolis force F is applied to −2, and voltage E is generated.

The minute voltage output from the detecting piezoelectric ceramic 333-2 is amplified by the amplifier 335-2 and is
It is converted to digital data in the / D converter 336-2.

The angular velocity ω applied to the vibration gyro 331-2 and the generated voltage E have a proportional relationship. For example, when the gyro 331-2 is rotated rightward about the Y-axis, the voltage E rises to the left. It is arranged so that the voltage E drops when rotated in the direction.

The vibration gyro 331-3 is provided with a driving piezoelectric ceramic 332-3 and a detecting piezoelectric ceramic 333-3. The driving piezoelectric ceramic 332-3 has an oscillator 33.
The alternating signal which is the oscillation output of 4-3 is applied. In this state, the vibration gyro 331-3 moves to Z
When it is rotated in the φ direction around the axis, the detecting piezoelectric ceramic 333
Coriolis force F is applied to -3, and voltage E is generated.

The minute voltage output from the detecting piezoelectric ceramic 333-3 is amplified by the amplifier 335-3,
It is converted to digital data in the / D converter 336-3.

The angular velocity ω applied to the vibrating gyro 331-3 and the generated voltage E have a proportional relationship. For example, when the Z-axis is rotated rightward, the voltage E rises to the left. It is arranged so that the voltage E drops when rotated in the direction.

The interface 337 is the A / D converter 33.
6-2, digital data corresponding to the angular acceleration in the θ direction around the X axis, digital data corresponding to the angular acceleration in the ψ direction around the Y axis supplied from the A / D conversion unit 336-2, and The angular acceleration data composed of digital data corresponding to the angular acceleration in the φ direction about the Z axis supplied from the A / D conversion unit 336-3 is supplied to the signal processing unit 301.

Next, the processing of the PDA 1 when the expansion module 11 has the angular acceleration sensor 311 will be described.

The navigation process is the same as the process described with reference to the flowchart of FIG. 33, and therefore its description is omitted.

The process of displaying the current position corresponding to walking is the same as the process described with reference to the flowchart of FIG. 34, and therefore its description is omitted.

The process of displaying the current position by rotating the jog dial 4 is the same as the process described with reference to the flowchart of FIG.

FIG. 41 is a flow chart for explaining the process of moving to the next point, which corresponds to the process of step S36 or step S52 when the expansion module 11 has the angular acceleration sensor 311.

[0187] In step S101, the route analysis module 182 determines whether or not the next point exists based on the current position and the point of the searched route. If it is determined that the next point exists, step S1
Proceeding to 02, the route analysis module 182 moves the current position to the next point, and the process ends.

If it is determined in step S101 that the next point does not exist, the current position cannot be moved to the next point, so the process of step S102 is skipped and the process ends.

FIG. 42 is a flow chart for explaining the process of moving to a later point, which corresponds to the process of step S54 when the expansion module 11 has the angular acceleration sensor 311.

In step S121, the route analysis module 182 determines whether or not there is a subsequent point based on the current position and the point of the searched route. If it is determined that the subsequent point exists, the step S1 is performed.
Proceeding to 22, the route analysis module 182 moves the current location to a later point, and the processing ends.

If it is determined in step S121 that the subsequent point does not exist, the current position cannot be moved to the subsequent point, so the process of step S122 is skipped and the process ends.

FIG. 43 is a flow chart for explaining the process of rotating the map when the expansion module 11 has the angular acceleration sensor 311.

In step S141, the expansion module 11 detects the angular acceleration around the X axis in the θ direction, the angular acceleration around the Y axis in the ψ direction, and the angular acceleration around the Z axis in the φ direction. The expansion module 11 transmits the angular acceleration data indicating the detected angular acceleration to the map drawing engine 18 via the control program 181 and the route analysis module 182.
Supply to 3.

In step S142, the map drawing engine 183 rotates the map based on the detected angular acceleration, returns to step S141, and repeats the processing.

As described above, the PDA 1 to which the expansion module 11 having the configuration shown in FIG. 38 is mounted rotates the map displayed on the display unit 2 when the traveling direction is changed, and the current position is determined by a simpler process. Can be displayed.

FIG. 44 is a diagram showing still another example of the internal configuration of the expansion module 11. The same parts as those shown in FIG. 7 are designated by the same reference numerals, and the description thereof will be omitted.

The angular acceleration sensor 311 provided inside the rotary unit 23 of the expansion module 11 supplies an angular acceleration signal indicating the angular acceleration of the PDA 1 to the signal processing unit 401. The expansion module 11 having the configuration shown in FIG. 44 does not have the acceleration sensor 23.

The signal processing section 4 provided inside the main body 22.
01 calculates a changed traveling direction such as a right turn or a left turn of the user holding the PDA 1 based on the angular acceleration signal detected by the angular acceleration sensor 311.

FIG. 45 is a flow chart for explaining the navigation processing by the PDA 1 to which the expansion module 11 having the structure shown in FIG. 44 is mounted.

In step S201, the route analysis module 182 determines that the display unit 2 or the touch pad 2
a, or corresponding to the operation of key 3, start point, stopover,
And set the destination.

In step S202, the route analysis module 182 searches for a walking route from the starting point to the destination via the transit point.

In step S203, the route analysis module 182 sets a point on the searched route that divides the searched route into predetermined distances. For example, the route analysis module 182 sets a point on the searched route that divides the searched route for each predetermined distance. For example, the route analysis module 182 sets points that divide the searched route for each 1 m.

In step S204, the route analysis module 182 causes the map drawing engine 183 to display the walking route on the map.

In step S205, the route analysis module 182 sets the departure place to the present place.

In step S206, the control program 181, the route analysis module 182, and the map drawing engine 183 execute the process of displaying the current position corresponding to the rotation of the jog dial 4.

[0206] In step S207, the route analysis module 182 determines whether or not the destination has been reached based on the positions of the current location and the destination. Returning to S206, the process of displaying the current location is repeated.

If it is determined in step S207 that the destination has been reached, there is no need to display the current location any more, and the process ends.

The process of displaying the current position by rotating the jog dial 4 is the same as the process described with reference to the flowchart of FIG.

The process of moving to the next point is the same as the process described with reference to the flowchart of FIG. 41, and therefore its description is omitted.

The process of moving to the subsequent point is the same as the process described with reference to the flowchart of FIG. 42, and therefore its description is omitted.

The process of rotating the map is the same as the process described with reference to the flowchart of FIG. 43, and therefore its description is omitted.

As described above, the PDA 1 to which the expansion module 11 having the configuration shown in FIG. 44 is mounted can display the present location by a simpler process.

According to the information processing apparatus of the present invention, which is exemplified by the portable navigation system, it is not necessary to receive the GPS position information. Therefore, a relatively narrow road between buildings, the inside of a building, or an underground mall Even in areas where GPS radio waves do not reach or where GPS radio waves do not reach easily, it is possible to reliably and swiftly guide to the destination.

As shown in FIG. 46, when the expansion module 11 is not attached to the PDA 1 and the user rotates the jog dial 4 in accordance with the walking distance, the route analysis module 182 and the map drawing engine 183 are used.
Executes the navigation process described with reference to the flowchart of FIG. 45, and the process of moving to the next point described with reference to the flowchart of FIG.
It is possible to display the map corresponding to the current location by executing the process of moving to the point described with reference to the flowchart of FIG.

Further, although it has been described that the navigation system is realized by mounting the expansion module 11 equipped with the acceleration sensor on the PDA 1, the present invention is not limited to the PDA 1, but a personal computer, a mobile phone, a PHS (Personal Ha).
(ndyphone System) terminal device, navigation device, and other information processing devices suitable for carrying.

Although the PDA 1 is equipped with the expansion module 11 equipped with the acceleration sensor to realize the navigation system, it goes without saying that even if the expansion module 11 is not mounted, the acceleration sensor is built in and the navigation system is installed. It goes without saying that it can be applied to all devices that can be realized.

The series of processes described above can be executed by hardware, but can also be executed by software. When a series of processes is executed by software, a program that constitutes the software can execute various functions by installing a computer in which dedicated hardware is installed or various programs. It is installed from a recording medium into a possible personal computer such as a general-purpose computer.

As shown in FIG. 4, a magnetic disk 8 is used as a recording medium for recording a program which is installed in the computer and is made executable by the computer.
1 (including flexible disk), optical disk 82
(CD-ROM (Compact Disc-ReadOnly Memory), DVD (Digi
tal Versatile Disc), magneto-optical disc 83 (M
D (Mini-Disc) (including a registered trademark), or a package medium including a mounting portion 21 (memory card) of the expansion module 11, a flash ROM 53 in which a program is temporarily or permanently recorded, or a hard disk Composed of etc. The recording of the program on the recording medium is performed by using a wired or wireless communication medium such as a public line network, a local area network, the Internet, or digital satellite broadcasting via an interface such as a router or a modem as necessary. .

In the present specification, the steps for writing the program recorded on the recording medium are not limited to the processing performed in time series according to the order described, but are not necessarily performed in time series. It also includes processing executed in parallel or individually.

Also, in this specification, the system means
It represents the entire apparatus composed of a plurality of devices.

[0221]

According to the information processing apparatus and method and the program of the present invention, the acceleration due to the walking of the user is detected, and the moving distance of the user is calculated based on the detected acceleration. The position on the route to the destination corresponding to the user's current location is calculated based on the traveled distance, and the display of the mark indicating the current location is controlled together with the map based on the calculated position. Therefore, it becomes possible to display the current location of the walking user inexpensively, with a simple configuration, and quickly.

[Brief description of drawings]

FIG. 1 is a front view of a PDA 1 on which an expansion module 11 is mounted.

FIG. 2 is a left side view of the PDA 1 on which the expansion module 11 is mounted.

FIG. 3 is a top view of the PDA 1 in which the expansion module 11 is mounted.

FIG. 4 is a diagram showing an overall configuration of an extension module 11.

5A and 5B are diagrams showing a configuration of a front surface and a back surface of a mounting portion 21.

FIG. 6 is a block diagram showing an electrical configuration example of the PDA 1.

FIG. 7 is a diagram showing an internal configuration example of an extension module 11.

FIG. 8 is a diagram showing an example of a configuration of an acceleration sensor 121.

FIG. 9 is a diagram showing an example of directions of an X axis, a Y axis, and a Z axis.

10 is a diagram showing an example of the configuration of a sensor 151. FIG.

FIG. 11 is a diagram showing an example of a configuration of a program executed by the CPU 51 of the PDA 1 and data stored in the PDA 1.

FIG. 12 is a diagram showing an example of the PDA 1 when a starting point, a waypoint, and a destination are set.

FIG. 13 is a diagram showing an example of a walking route 211.

FIG. 14 is a diagram illustrating an example of an image displayed on the display unit 2.

FIG. 15 is a diagram showing an example of an image displayed on the display unit 2.

16 is a diagram showing an example of an image displayed on the display unit 2. FIG.

FIG. 17 is a diagram showing an example of an image displayed on the display unit 2.

FIG. 18 is a diagram showing an example of an image displayed on the display unit 2.

19 is a diagram showing an example of an image displayed on the display unit 2. FIG.

20 is a diagram showing an example of an image displayed on the display unit 2. FIG.

21 is a diagram showing an example of an image displayed on the display unit 2. FIG.

FIG. 22 is a diagram illustrating an example of an actual position where the user of the PDA 1 is walking.

FIG. 23 is a diagram showing an example of an image displayed on the display unit 2.

FIG. 24 is a diagram illustrating an example of an actual position where the user of the PDA 1 is walking.

FIG. 25 is a diagram showing an example of an image displayed on the display unit 2.

FIG. 26 is a diagram illustrating an example of an actual position where the user of the PDA 1 is walking.

FIG. 27 is a diagram showing an example of an image displayed on the display unit 2.

[Fig. 28] Fig. 28 is a diagram illustrating an example of an actual position where the user of the PDA 1 is walking.

29 is a diagram showing an example of an image displayed on the display unit 2. FIG.

FIG. 30 is a diagram illustrating an example of an actual position where the user of the PDA 1 is walking.

FIG. 31 is a diagram showing an example of an image displayed on the display unit 2.

FIG. 32 is a diagram illustrating an example of an actual position where the user of PDA 1 is walking.

FIG. 33 is a flowchart illustrating navigation processing.

FIG. 34 is a flowchart illustrating processing for displaying a current location corresponding to walking.

FIG. 35 is a flowchart illustrating processing for displaying the current location by rotating the jog dial 4.

FIG. 36 is a flowchart illustrating a process of moving to the next point.

FIG. 37 is a flowchart illustrating a process of moving to a later point.

FIG. 38 is a diagram showing another example of the internal configuration of the extension module 11.

FIG. 39 is a diagram showing an example of a configuration of an angular acceleration sensor 311.

FIG. 40 is a θ direction around the X axis, a ψ direction around the Y axis, and
It is a figure which shows the example of the (phi) direction around a Z-axis.

FIG. 41 is a flowchart illustrating a process of moving to the next point.

FIG. 42 is a flowchart illustrating processing for moving to a later point.

FIG. 43 is a flowchart illustrating processing for rotating a map.

FIG. 44 is a diagram showing still another example of the internal configuration of the extension module 11.

45 is a flowchart illustrating a navigation process performed by the PDA 1 to which the expansion module 11 having the configuration shown in FIG. 44 is attached.

FIG. 46 is a diagram showing an example of a configuration of a program and data stored in the PDA 1 when the expansion module 11 is not attached to the PDA 1.

[Explanation of symbols]

1 PDA, 2 display, 2a touchpad, 3
Key, 4 jog dial, 11 expansion module, 51 CPU, 53 Flash ROM, 54EDO DRA
M, 81 magnetic disk, 82 optical disk, 8
3 magneto-optical disk, 102 storage unit, 111 signal processing unit, 121 acceleration sensor, 151-1 to 15-1
51-3 sensor, 181 control program, 18
2 route analysis module, 183 map drawing engine, 184 map database, 201 icon, 202 icon, 221 icon, 30
1 signal processing unit, 311 angular acceleration sensor, 321
3-axis gyro, 331-1 to 331-3 vibrating gyro, 401 signal processing unit

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2C032 HB02 HB25 HB31 HC05 HC11                       HC14 HC16 HC23 HC25 HC31                       HD03 HD16                 2F029 AA07 AB01 AB03 AB09 AB13                       AC02 AC04 AC08 AC09 AC14                       AC18                 5H180 AA21 BB04 BB05 BB12 BB13                       FF04 FF22 FF25 FF33

Claims (6)

[Claims] 1. A first detecting means for detecting an acceleration of a user walking, a moving distance calculating means for calculating a moving distance of the user based on the detected acceleration, and a calculated moving distance. Based on the current position of the user, the current position calculating means for calculating the position on the route to the destination corresponding to the current position; An information processing device, comprising: 2. The display control means, based on the traveling direction on the route to the destination, which corresponds to the present location,
The information processing apparatus according to claim 1, wherein the display is controlled to display the map or the mark indicating the current position at a predetermined angle with respect to the display screen. 3. The vehicle further includes an acquisition unit that acquires an instruction to move forward or backward, wherein the current position calculation unit determines a destination corresponding to the current position of the user based on the acquired instruction to move forward or backward. The information processing apparatus according to claim 1, wherein a position on the route to reach is calculated. 4. The display device further includes second detecting means for detecting an angular acceleration due to walking of the user, and orientation calculating means for calculating an orientation of the user based on the detected angular acceleration. The control means controls the display so as to display the mark indicating the map or the current position at a predetermined angle with respect to the display screen based on the calculated orientation of the user. The information processing device according to item 1. 5. A detection step of detecting an acceleration caused by walking of a user, a movement distance calculating step of calculating a movement distance of the user based on the detected acceleration, and a movement step based on the calculated movement distance. A current position calculating step of calculating a position on a route to a destination corresponding to the current position of the user, and a display control for controlling display of a mark indicating the current position together with a map based on the calculated position. An information processing method comprising the steps of: 6. A moving distance calculating step for calculating a moving distance of the user on the basis of the detected acceleration in a computer of an information processing apparatus having a detecting device for detecting acceleration due to walking of the user, A current position calculating step for calculating the position on the route to the destination corresponding to the current position of the user based on the calculated moving distance; and a mark indicating the current position together with the map based on the calculated position. And a display control step for controlling the display of the program.