JP6454995B2 - Electronic device, position correction method and program - Google Patents

Description

  The present invention relates to an electronic device that acquires position information, a position correction method, and a program.

In recent years, portable electronic devices called smartphones have been widely used.
An electronic device such as a smartphone includes an acceleration sensor, a geomagnetic sensor, a GPS, and the like, and displays the current position of a user carrying the electronic device based on position information acquired using the GPS and map data. Or confirming the user's action record.
On the other hand, in recent years, a device (so-called smart watch) in which the function of a smartphone is mounted on a wristwatch type electronic device has been developed.
For example, Patent Document 1 describes a technique related to a wristwatch having a wireless communication function.

JP 2006-101505 A

By the way, when the current position is to be confirmed in real time, the position information acquired using GPS or the like includes an error. Therefore, the position information data is temporarily stored in the memory, and the position information obtained later is used to perform matching with the map data, thereby correcting the error and calculating the position information with high accuracy. Can do. By recording the calculated position information on a recording medium such as a flash memory, the user can use more accurate position information.
However, portable electronic devices such as smart watches generally have a small memory capacity, and there are cases where a large amount of data for performing accurate correction cannot be stored in the memory. In this case, position information with low accuracy must be recorded on a recording medium such as a flash memory. Even if the position information recorded on the recording medium such as the flash memory is to be corrected, the recording medium such as the flash memory has a slower data rewriting speed than the memory, so the position information should be corrected due to time constraints. Will be difficult.
That is, the conventional electronic device has room for improvement in correcting the acquired position information with higher accuracy.

  The present invention has been made in view of such a situation, and an object thereof is to correct acquired position information with higher accuracy.

In order to achieve the above object, an electronic device according to one embodiment of the present invention includes:
Position information acquisition means for acquiring current position information;
Position correction means for correcting the current position information acquired by the position information acquisition means to a position on the route of the map in real time;
Display means;
When the position information after being corrected by the position correcting means is discontinuous on the route of the map , additional information for correcting the position information after being corrected by the position correcting means is generated. Additional information generating means for
Recording means for recording the position information after correction by the position correction means and the additional information;
Display control means for displaying the position information corrected by the position correction means on the display means;
When the acquisition of the position information by the position information acquisition unit is completed, the position information corrected by the position correction unit recorded in the recording unit is based on the additional information recorded in the recording unit. Te, a corrected position correction means for correcting the position where the continuous on the route of the map,
It is characterized by providing.

  According to the present invention, the acquired position information can be corrected with higher accuracy.

1A and 1B are diagrams illustrating a configuration of a wrist terminal as an embodiment of an electronic apparatus according to the present invention, in which FIG. 1A is an external configuration diagram, and FIG. 1B is a block diagram illustrating a hardware configuration. It is a functional block diagram which shows the functional structure for performing a real-time position correction process among the functional structures of a wrist terminal. It is a schematic diagram which shows the route based on node information and link information, and has shown the state from which the present position changed to the state of Fig.3 (a) from FIG.3 (b). It is a schematic diagram which shows the state in which a correction position is corrected. It is a flowchart explaining the flow of the real-time position correction process which the wrist terminal 1 performs.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Hardware configuration]
FIG. 1 is a diagram illustrating a configuration of a wrist terminal 1 as an embodiment of an electronic apparatus according to the present invention. FIG. 1A is an external configuration diagram, and FIG. 1B is a block diagram illustrating a hardware configuration. It is.
The wrist terminal 1 is an electronic device that is configured as a wristwatch and has a function similar to a smartphone.
As shown in FIG. 1, the wrist terminal 1 includes a control unit 11, a sensor unit 12, an input unit 13, an LCD (Liquid Crystal Display) 14, a clock circuit 15, a ROM (Read Only Memory) 16, A RAM (Read Access Memory) 17, a GPS (Global Positioning System) antenna 18, a GPS module 19, a radio communication antenna 20, a radio communication module 21, and a drive 22 are provided.

The control unit 11 includes an arithmetic processing device such as a CPU (Central Processing Unit), and controls the operation of the entire wrist terminal 1. For example, the control unit 11 executes various processes according to a program recorded in the ROM 16 such as a program for a real-time position correction process (described later).
The sensor unit 12 includes various sensors such as a triaxial acceleration sensor, a magnetic sensor, an atmospheric pressure sensor, and an air temperature sensor.

The input unit 13 is configured by various buttons, a capacitance type or resistive film type position input sensor stacked on the display area of the LCD 14, etc., and inputs various types of information according to a user's instruction operation.
The LCD 14 outputs an image according to an instruction from the control unit 11. For example, the LCD 14 displays various images and a user interface screen. In the present embodiment, the position input sensor of the input unit 13 is arranged on the LCD 14 so as to constitute a touch panel.
The clock circuit 15 generates a time signal from a signal generated by a system clock or an oscillator, and outputs the current time.

The ROM 16 stores information such as a control program executed by the control unit 11.
A RAM (memory) 17 provides a work area when the control unit 11 executes various processes.
The GPS antenna 18 receives radio waves transmitted from satellites in GPS and converts them into electrical signals, and outputs the converted electrical signals (hereinafter referred to as “GPS signals”) to the GPS module 19.
The GPS module 19 detects the position (latitude, longitude, altitude) of the wrist terminal 1 and the current time indicated by GPS based on the GPS signal input from the GPS antenna 18. Further, the GPS module 19 outputs information indicating the detected position and the current time to the control unit 11.

The radio communication antenna 20 is an antenna capable of receiving radio waves having a frequency corresponding to radio communication used by the radio communication module 21, and is configured by, for example, a loop antenna or a rod antenna. The radio communication antenna 20 transmits the radio communication electric signal input from the radio communication module 21 as an electromagnetic wave, or converts the received electromagnetic wave into an electric signal and outputs the electric signal to the radio communication module 21.
The wireless communication module 21 transmits a signal to another device via the wireless communication antenna 20 in accordance with an instruction from the control unit 11. In addition, the wireless communication module 21 receives a signal transmitted from another device and outputs information indicated by the received signal to the control unit 11.
A removable medium 31 including a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory (for example, a flash memory), or the like is appropriately attached to the drive 22. The removable medium 31 can store various data such as image data. The removable medium 31 is a recording medium whose reading / writing speed is slower than that of the RAM 17.

[Functional configuration]
Next, the functional configuration of the wrist terminal 1 will be described.
FIG. 2 is a functional block diagram showing a functional configuration for executing the real-time position correction process among the functional configurations of the wrist terminal 1.
The real-time position correction process is a process for correcting the position information acquired from the GPS module 19 or the like based on the position information acquired later and the map information, and correcting the position information stored in the RAM 17 And a series of processes including a process of generating additional information for correcting position information stored in the removable medium 31. In the present embodiment, the latest three pieces of position information can be stored in the RAM 17, and four or more previous pieces of position information are stored in the removable medium 31.

  When real-time position correction processing is performed, as shown in FIG. 2, in the control unit 11, the position information acquisition unit 51, the movement track specifying unit 52, the movement track correction unit 53, the additional information generation unit 54, and display control are performed. The unit 55 functions. In addition, a map information storage unit 71 is formed in the ROM 16.

  The map information storage unit 71 includes node information that is information indicating a branch position of a road and link information that is information indicating a connection status of a plurality of branch positions. A route on the map is specified based on the node information and the link information. The node information and link information stored in the map information storage unit 71 are used to correct an error in the position information acquired from the GPS module 19 in the movement locus specifying unit 52 described later. That is, as will be described later, an error in position information is corrected by matching the acquired position information with a route on a map represented by node information and link information.

  The position information acquisition unit 51 acquires the current position information of the wrist terminal 1 from the GPS module 19 every time a predetermined time (for example, 2 to 5 seconds) elapses.

The movement locus specifying unit 52 refers to the map information stored in the map information storage unit 71 and corrects the current position information acquired by the position information acquisition unit 51 to a position on the route.
Specifically, the movement locus specifying unit 52 acquires link information around the current position from the map information storage unit 71 based on the current position information. Then, the movement trajectory specifying unit 52 calculates the nearest position from the current position information in the acquired link information, and corrects the current position information to the nearest position on the link (that is, on the route).

Here, the correction of the position performed by the movement locus specifying unit 52 will be specifically described with reference to FIG.
FIG. 3 is a schematic diagram showing a route based on node information and link information, and shows a state in which the current position has changed from the state of FIG. 3A to the state of FIG. 3B.
In FIG. 3A, the current positions G1 to G6 indicate the current positions on the map corresponding to the position information sequentially acquired by the position information acquisition unit 51. The current position acquired by the position information acquisition unit 51 is not located on the route, and there is an error from the route on the map through which the user of the wrist terminal 1 has actually passed.

Therefore, in FIG. 3B, the movement trajectory specifying unit 52 calculates the nearest position from the current position information, and corrects the current position information on the route. Specifically, the movement trajectory specifying unit 52 corrects the current positions G1 and G2 to correction positions M1 and M2 on the link L3 that are the nearest positions, respectively. Similarly, the movement locus specifying unit 52 corrects the current positions G3, G4, G5, and G6 to correction positions M3, M4, M5, and M6 on the link L1, which is the nearest position, respectively. In addition, the movement locus specifying unit 52 corrects the current positions G7, G8, and G9 to correction positions M7, M8, and M9 on the link L2, which is the nearest position, respectively.
In addition, since the movement trajectory specifying unit 52 performs correction on the link nearest to the current position, if an error occurs in which a route other than the route actually passed is in the vicinity, an error occurs. There is a case where the correction is made to the route, and as shown in FIG. 3B, the locus is specified as if it moved from L1 to L3 even though there is no route between M6 and M7. Sometimes.

  Returning to FIG. 2, the movement trajectory correction unit 53 refers to the position information stored in the map information storage unit 71 to determine whether the correction positions after correction by the movement trajectory identification unit 52 are continuous, and continuously. If it is determined that the correction position is not, correction is performed so that the correction positions stored in the RAM 17 are continuous. The movement trajectory correction unit 53 refers to additional information described later at a timing when the real-time position correction processing is not executed (such as timing when the location information acquisition unit 51 has completed acquisition of the location information), and removes the removable medium 31. It is possible to correct the correction position stored in.

Specifically, the movement trajectory correction unit 53 refers to the map information storage unit 71 and determines whether the position information after correction by the movement trajectory identification unit 52 is continuous based on the link connection status and movement speed. judge.
Here, “position information is continuous” means that the change in the position information matches the link connection, and the two pieces of continuous position information are not connected in the section between the position information. In the case of straddling another link, “position information is discontinuous”. In addition, when determining whether position information is continuous, the moving speed assumed in the wrist terminal 1 is considered. That is, when it is determined that the wrist terminal 1 has moved at a speed that cannot be assumed as the moving speed of the wrist terminal 1, the position information is determined to be discontinuous.
For example, referring to FIG. 3B, the correction position M6 and the correction position M7 are located at the connected link L1 and link L2, but the correction position from the correction position M6 in the time interval at which the position information is acquired. Moving to M7 deviates from the assumed moving speed of the wrist terminal 1. Therefore, the movement locus correction unit 53 determines that the position information of the correction position M6 and the position information of the correction position M7 are not continuous.

If the movement trajectory correction unit 53 determines that the position information is not continuous, the correction position corrected in the past so that the position information stored in the RAM 17 is continuous can be connected on the link where the position can be continuously connected. To correct.
Here, the “link capable of continuously connecting positions” is determined in relation to the number of correction positions and the subsequent position information. For example, in the case of a link including two correction positions and a link including four correction positions, it is determined that a link including four correction positions is a link capable of continuously connecting positions. Also, for example, a link having no subsequent position information (that is, a position information is interrupted) and a link having subsequent position information are determined as links that can continuously connect positions. Is done.
In this way, after the position information acquired by the position information acquisition unit 51 is corrected to the correction position on the link, if the position information is discontinuous, the position is corrected to a link that can be continuously connected. The position is corrected.

Next, with reference to FIG. 4, an example of correction of position information performed by the movement trajectory correction unit 53 will be described.
FIG. 4 is a schematic diagram illustrating a state in which the correction position is corrected.
As described above, the movement locus correction unit 53 determines that the position information of the correction position M6 and the correction position M7 is not continuous.
Then, since the link L2 has the correction positions M8 and M9 that follow the correction position M7, the movement trajectory correction unit 53 determines that the link L2 is a link capable of continuously connecting positions, and is stored in the RAM 17. The current positions G5 and G6 are corrected to the nearest positions R5 and R6 on the link L2.

Returning to FIG. 2, when the movement trajectory correcting unit 53 determines that the position information is discontinuous, the additional information generating unit 54 corrects the position information stored in the removable medium 31 and not remaining in the RAM 17. Determine whether it is necessary. When the additional information generation unit 54 determines that the position information stored in the removable medium 31 needs to be corrected, the additional information generation unit 54 corrects the position information (corrected position on the link) stored in the removable medium 31. Generate additional information.
This additional information indicates that the position information stored in the removable medium 31 needs to be corrected and includes information that can correct the position information. In this embodiment, the additional information is stored in the removable medium 31. It includes information for specifying the stored correction position, and a correction position after correcting the correction position (a position on the link where the positions can be continuously connected). Note that the additional information may include a link name including the corrected correction position and a flag for identifying whether or not the position information stored in the removable medium 31 in the movement track needs to be corrected.

For example, in FIG. 4, when the movement locus correction unit 53 determines that the correction positions M6 and M7 are discontinuous, the additional information generation unit 54 determines the correction position M3 included from the current position to the first node information N. Additional information is generated so as to include information for correcting to the correction position Q3 and information for correcting the correction position M4 to the correction position Q4.
The additional information generation unit 54 stores the generated additional information in the removable medium 31 in association with the correction target position information. The additional information generation unit 54 stores additional information together with the timing at which the position information stored in the RAM 17 is stored in the removable medium 31.

  The display control unit 55 superimposes the movement trajectory of the user of the wrist terminal 1 on the map and displays it on the LCD 14 based on the correction position specified by the movement trajectory specification unit 52 and the correction position corrected by the movement trajectory correction unit 53. Perform display control.

Next, the operation will be described.
FIG. 5 is a flowchart for explaining the flow of real-time position correction processing executed by the wrist terminal 1.
The real-time position correction process is started by accepting a user's start operation at the input unit 13 of the wrist terminal 1.

When the real-time position correction process is started, the position information acquisition unit 51 acquires the current position information of the wrist terminal 1 from the GPS module 19 in step S1.
In step S <b> 2, the movement locus specifying unit 52 refers to the map information storage unit 71 and corrects the current position information acquired by the position information acquisition unit 51 to a position on the route.

In step S <b> 3, the movement trajectory correction unit 53 refers to the map information stored in the map information storage unit 71 and the correction positions after the movement trajectory identification unit 52 has corrected are not continuous (discontinuous). Determine whether or not.
If the correction positions are not continuous, YES is determined in step S3, and the process proceeds to step S4.
On the other hand, if the correction positions are continuous, NO is determined in step S3, and the process proceeds to step S7.

  In step S4, the movement trajectory correcting unit 53 corrects the correction positions determined to be non-continuous so that the correction positions stored in the RAM 17 are continuous.

In step S <b> 5, the additional information generation unit 54 determines whether the position information stored in the removable medium 31 and not remaining in the RAM 17 needs to be corrected.
If correction is necessary, YES is determined in step S5, and the process proceeds to step S6.
On the other hand, when correction is not necessary, it is determined as NO in Step S5, and the process proceeds to Step S7.
In step S <b> 6, the additional information generation unit 54 generates additional information for correcting the correction position stored in the removable medium 31.

In step S <b> 7, the movement locus specifying unit 52 stores the correction position or the correction position stored in the RAM 17 in the removable medium 31. In addition, when the additional information is generated, the movement locus specifying unit 52 stores the additional information in the removable medium 31.
In step S <b> 8, the display control unit 55 performs display control in which the movement locus of the user of the wrist terminal 1 is superimposed on the map and displayed on the LCD 14.

In step S <b> 9, the position information acquisition unit 51 determines whether or not the user has accepted an end operation on the input unit 13.
If an end operation has not been accepted, NO is determined in step S9, and the process proceeds to step S1.
On the other hand, when the end operation is accepted, it is determined as YES in Step S9, and the real-time position correction process ends.

By such processing, additional information for correcting the correction position to a more appropriate route is recorded for the correction position stored in the removable medium 31 and not remaining in the RAM 17.
As a result of such processing, after completion of the real-time position correction process, based on the additional information, when correcting to more appropriate position information or when the user tries to refer to the past movement trajectory, It is possible to correct the position information and display it.
Therefore, even when the capacity of the RAM 17 is small, it is possible to correct the position information with higher accuracy.

The wrist terminal 1 configured as described above includes a position information acquisition unit 51, a movement trajectory identification unit 52, and an additional information generation unit 54.
The position information acquisition unit 51 acquires current position information of the wrist terminal 1.
The movement trajectory specifying unit 52 corrects the current position information acquired by the position information acquiring unit 51 to a position on the route of the map.
The additional information generation unit 54 indicates that the position information after correction by the movement trajectory specifying unit 52 is discontinuous on the route of the map and indicates that the position information needs to be corrected. Is generated.
Thereby, when it is found that the position information corrected in the past is discontinuous, additional information for correcting the position information can be generated.
Therefore, by using the additional information, it is possible to correct the position information by tracing back to the past position information.
That is, the acquired position information can be corrected with higher accuracy.

The wrist terminal 1 also includes a movement trajectory correction unit 53.
When the position information after the correction by the movement path specifying unit 52 is discontinuous on the map route, the movement track correcting unit 53 corrects the position information to a continuous position on the map route.
Thereby, when it is found that the position information corrected in the past becomes discontinuous, the position information can be corrected.
Therefore, the acquired position information can be corrected with higher accuracy.

The wrist terminal 1 also includes a RAM 17 that temporarily stores position information.
The movement trajectory correction unit 53 corrects the position information stored in the RAM 17 to a position on the map route.
Therefore, the current position displayed in real time can be displayed with higher accuracy.

The wrist terminal 1 includes a removable medium 31 that records position information.
The additional information generation unit 54 generates additional information related to the position information when the position information whose data has been moved from the RAM 17 to the removable medium 31 becomes discontinuous on the map information and the position information acquired later. It is recorded on the removable medium 31 in association with the position information.
As a result, it is possible to display the past position information whose data has been moved from the RAM 17 to the removable medium 31 with higher accuracy.

Further, the movement trajectory correcting unit 53 corrects position information corresponding to the additional information based on the additional information recorded on the removable medium 31.
Therefore, it is possible to correct the past position information recorded on the removable medium 31 to more accurate position information.

Further, the movement trajectory correction unit 53 corrects the position information corresponding to the additional information based on the additional information recorded on the removable medium 31 when the position information acquisition unit 51 has not acquired the position information. To do.
Thereby, it becomes possible to correct position information efficiently.

Further, the movement trajectory correcting unit 53 corrects the position information corresponding to the additional information based on the additional information recorded on the removable medium 31 at the timing when the acquisition of the position information by the position information acquiring unit 51 is completed.
Thereby, it is possible to quickly correct the position information at the timing when the processing load on the wrist terminal 1 is reduced.

Further, the movement trajectory correction unit 53 corresponds to the additional information based on the additional information recorded on the removable medium 31 at the timing of displaying the position information acquired by the position information acquisition unit 51 on the route of the map. Correct location information.
This makes it possible to correct the position information with high accuracy and power saving.

  In addition, this invention is not limited to the above-mentioned embodiment, The deformation | transformation in the range which can achieve the objective of this invention, improvement, etc. are included in this invention.

In the above-described embodiment, the movement trajectory correction unit 53 refers to the map information stored in the map information storage unit 71 to determine whether the correction positions after correction by the movement trajectory identification unit 52 are continuous, and continuously. Although it has been described that the correction position stored in the RAM 17 is corrected to be continuous when it is determined that the correction is not performed, the present invention is not limited to this. That is, the movement trajectory correcting unit 53 can also correct the position information stored in the removable medium 31 based on the additional information.
In this case, the movement trajectory correction unit 53 reads additional information from the removable medium 31 when the real-time position correction process is not executed. Then, based on the read additional information, the movement trajectory correcting unit 53 corrects the position information stored in the removable medium 31 to a position on the link where the positions can be continuously connected, and the corrected position information Is stored in the removable medium 31.
As a result, the position information stored in the removable medium 31 can be corrected to a more appropriate one.

In the above-described embodiment, the movement trajectory correction unit 53 performs the real-time position correction process, which updates the position information stored in the removable medium 31 to a link that can continuously link the positions based on the additional information. However, the present invention is not limited to this. However, the timing is not limited to this (such as the timing when the position information acquisition unit 51 finishes acquiring position information).
In addition to executing the process of correcting the position information based on the additional information in the wrist terminal 1, the additional information and the position information stored in the removable medium 31 are transmitted from the wrist terminal 1 to another device (server or the like). However, in another apparatus, the process of correcting the position information based on the additional information may be executed.

In addition, the movement trajectory correction unit 53 performs a process of updating the position information stored in the removable medium 31 to a link that can continuously link the positions based on the additional information. May be performed at the timing of performing an operation for browsing (such as timing for displaying past position information on the route of the map).
As a result, only the movement trajectory that the user wishes to browse is corrected to position information that can be continuously linked to the position, so that the processing can be made more efficient, and the position information that is power-saving and accurate. Can be corrected.

In the above-described embodiment, the wrist terminal is described as an example of the electronic device to which the present invention is applied. However, the present invention is not particularly limited thereto.
For example, the present invention can be applied to general electronic devices having a function of acquiring position information. Specifically, for example, the present invention can be applied to a notebook personal computer, a tablet terminal, a video camera, a portable navigation device, a mobile phone, a smartphone, a portable game machine, and the like.

The series of processes described above can be executed by hardware or can be executed by software.
In other words, the functional configuration of FIG. 2 is merely an example and is not particularly limited. That is, it is sufficient that the wrist terminal 1 has a function capable of executing the above-described series of processing as a whole, and what functional blocks are used to realize this function is not particularly limited to the example of FIG.
In addition, one functional block may be constituted by hardware alone, software alone, or a combination thereof.

When a series of processing is executed by software, a program constituting the software is installed on a computer or the like from a network or a recording medium.
The computer may be a computer incorporated in dedicated hardware. The computer may be a computer capable of executing various functions by installing various programs, for example, a general-purpose personal computer.

  The recording medium including such a program is not only constituted by the removable medium 31 of FIG. 1 distributed separately from the apparatus main body in order to provide the program to the user, but also in a state of being incorporated in the apparatus main body in advance. The recording medium etc. provided in The removable medium 31 is composed of, for example, a magnetic disk (including a floppy disk), an optical disk, a magneto-optical disk, or the like. The optical disc is composed of, for example, a CD-ROM (Compact Disk-Read Only Memory), a DVD (Digital Versatile Disc), a Blu-ray (registered trademark) Disc (Blu-ray Disc), and the like. The magneto-optical disk is configured by an MD (Mini-Disk) or the like. Further, the recording medium provided to the user in a state of being preinstalled in the apparatus main body is configured by the ROM 16 of FIG. 1 in which a program is recorded, for example.

  In the present specification, the step of describing the program recorded on the recording medium is not limited to the processing performed in chronological order according to the order, but is not necessarily performed in chronological order, either in parallel or individually. The process to be executed is also included.

  As mentioned above, although several embodiment of this invention was described, these embodiment is only an illustration and does not limit the technical scope of this invention. The present invention can take other various embodiments, and various modifications such as omission and replacement can be made without departing from the gist of the present invention. These embodiments and modifications thereof are included in the scope and gist of the invention described in this specification and the like, and are included in the invention described in the claims and the equivalent scope thereof.

The invention described in the scope of claims at the beginning of the filing of the present application will be appended.
[Appendix 1]
Position information acquisition means for acquiring current position information;
Position correction means for correcting the current position information acquired by the position information acquisition means to a position on the route of the map;
When the position information after being corrected by the position correction means is discontinuous on the route of the map, additional information generation for generating additional information indicating that the position information needs to be corrected Means,
An electronic device comprising:
[Appendix 2]
When the position information corrected by the position correction means is discontinuous on the map route, the position information is further corrected to correct the position information to a position that is continuous on the map route. The electronic device as set forth in Appendix 1, wherein
[Appendix 3]
A memory for storing the position information;
The electronic apparatus according to claim 2, wherein the correction position correcting unit corrects the position information stored in the memory.
[Appendix 4]
A recording medium for recording the position information;
The additional information generation unit generates the additional information related to the position information that is recorded in the recording medium and not stored in the memory, and records the additional information in the recording medium in association with the position information. The electronic device according to Supplementary Note 3, wherein
[Appendix 5]
The electronic apparatus according to appendix 4, wherein the correction position correcting unit corrects the position information corresponding to the additional information based on the additional information recorded on the recording medium.
[Appendix 6]
The correction position correction means corrects the position information corresponding to the additional information based on the additional information recorded on the recording medium when the position information is not acquired by the position information acquisition means. The electronic device as set forth in Appendix 5, wherein:
[Appendix 7]
The correction position correction means corrects the position information corresponding to the additional information based on the additional information recorded on the recording medium at a timing when the acquisition of the position information by the position information acquisition means is completed. The electronic device as set forth in Appendix 6, wherein
[Appendix 8]
The correction position correction means corresponds to the additional information based on the additional information recorded on the recording medium at a timing when the position information acquired by the position information acquisition means is displayed on the route of the map. The electronic apparatus according to appendix 5, wherein the position information is corrected.
[Appendix 9]
A position correction method executed in an electronic device,
A location information acquisition step for acquiring current location information;
A position correction step of correcting the current position information acquired in the position information acquisition step to a position on the route of the map;
Additional information generation for generating additional information indicating that the position information needs to be corrected when the position information after being corrected in the position correction step is discontinuous on the route of the map Steps,
A position correction method comprising:
[Appendix 10]
A location information acquisition function for acquiring current location information in a computer that controls the electronic device;
A position correction function for correcting the current position information acquired by the position information acquisition function to a position on the route of the map;
When the position information after being corrected by the position correction function is discontinuous on the route of the map, additional information generation for generating additional information indicating that the position information needs to be corrected Function and
A program characterized by realizing.

  DESCRIPTION OF SYMBOLS 1 ... Display apparatus, 11 ... CPU, 12 ... ROM, 13 ... RAM, 14 ... Bus, 15 ... Input / output interface, 16 ... Imaging part, 17 ... Input unit 18 ... Output unit 19 ... Storage unit 20 ... Communication unit 21 ... Drive 31 ... Removable media 51 ... Position information acquisition unit 52 ... Movement locus specifying unit, 53... Movement locus correction unit, 54... Additional information generation unit, 55.

Claims (3)

Position information acquisition means for acquiring current position information;
Position correction means for correcting the current position information acquired by the position information acquisition means to a position on the route of the map in real time;
Display means;
When the position information after being corrected by the position correcting means is discontinuous on the route of the map , additional information for correcting the position information after being corrected by the position correcting means is generated. Additional information generating means for
Recording means for recording the position information after correction by the position correction means and the additional information;
Display control means for displaying the position information corrected by the position correction means on the display means;
When the acquisition of the position information by the position information acquisition unit is completed, the position information corrected by the position correction unit recorded in the recording unit is based on the additional information recorded in the recording unit. Te, a corrected position correction means for correcting the position where the continuous on the route of the map,
An electronic device comprising: A position correction method executed by an electronic device having a display means ,
A location information acquisition step for acquiring current location information;
A position correction step for correcting the current position information acquired in the position information acquisition step to a position on the route of the map in real time;
When the position information after correction in the position correction step is discontinuous on the route of the map , additional information for correcting the position information after correction by the position correction step is generated. Additional information generation step to perform,
A recording step for recording the position information after the correction in the position correction step and the additional information;
A display control step for displaying the position information corrected in the position correction step on the display means;
When the acquisition of the position information by the position information acquisition step is completed, the position of the map after the correction by the recorded position correction step is determined based on the recorded additional information. A correction position correction step for correcting to a continuous position on the upper side;
A position correction method comprising: A position information acquisition function for acquiring current position information in a computer that controls an electronic device including a display unit ;
A position correction function for correcting the current position information acquired by the position information acquisition function to a position on the route of the map in real time;
When the position information after being corrected by the position correction function is discontinuous on the route of the map , additional information for correcting the position information after being corrected by the position correction function is generated. Additional information generation function,
A recording function for recording the position information after being corrected in the position correction function and the additional information;
A display control function for displaying the position information corrected by the position correction function on the display unit;
When the acquisition of the position information by the position information acquisition function is completed, the position information corrected by the position correction function recorded by the recording function is based on the additional information recorded by the recording function. Te, a corrected position correction function for correcting the position where the continuous on the route of the map,
A program characterized by realizing.

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