JP5896167B2 - Moving track display device, program, and moving track display method - Google Patents

Description

  The present invention relates to a movement locus display apparatus and program for displaying a movement locus of a user together with a map on a screen, and a movement locus display method.

  2. Description of the Related Art Conventionally, display devices have been proposed that determine the current position of the user and display the movement locus on the screen together with the calculated current position (see, for example, Patent Document 1 and Patent Document 2 below). These display devices use both GPS (Global Positioning System) and various sensors, normally detect the current position by GPS, and display a map, a current position, and a movement locus on the screen based on the detected current position. . Particularly recently, there are many usages in which a map is displayed on a smart phone and a user holds it with his hand to check a screen and go to a destination.

  However, various sensors are activated in a state where GPS cannot function normally, for example, because the reception environment is poor due to the presence of a building or the like and radio waves transmitted from satellites cannot be received. Then, the current position is predicted and calculated using the values detected by the activated various sensors, and a map, the current position, and the movement locus are displayed on the screen based on the calculated current position. As a result, the map, the current position, and the movement locus can be continuously displayed on the screen even in a situation where the GPS cannot function normally.

JP 2008-36919 A JP 2011-137706 A

  However, in the conventional technology, in a state where GPS cannot function normally, the current position is predicted and calculated using values detected by various sensors, and based on the calculated current position. A map, a current position, and a movement locus are displayed on the screen. Therefore, if errors due to individual differences or errors due to magnetic effects from surrounding parts have occurred in various sensors, this error may be amplified by prediction calculation, resulting in a large error in the calculated current position. is there. Therefore, it becomes difficult to display the movement locus on the map with high accuracy.

  The present invention has been made in view of such a conventional problem, and a moving track display device capable of displaying a moving track with higher accuracy even in a state where GPS cannot function normally. It is an object to provide a program and a moving track display method.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a movement trajectory display device which has a screen and displays the movement trajectory of the user together with a map on the screen, and the user's movement trajectory using GPS. A path display control means for detecting and displaying on the map, a reference line setting means for setting a virtual reference line at the center of the screen, and a map display control for displacing the map displayed on the screen And a movement trajectory correction means for correcting the movement trajectory displayed by the trajectory display control means based on the reference line when the map display control means displaces the map. A moving locus display device is provided.

  The invention according to claim 6 includes a computer having a screen, and a moving track display device that displays the moving track of the user together with a map on the screen, detects the moving track of the user using GPS, Trajectory display control means for displaying on the map, reference line setting means for setting a virtual reference line at the center of the screen, map display control means for displacing the map displayed on the screen, When the map display control means displaces the map, a program that functions as a movement trajectory correction means that corrects the movement trajectory displayed by the trajectory display control means based on the reference line. provide.

  The invention according to claim 7 is a movement locus display method for displaying a movement locus of the user together with a map on the screen, and detecting the movement locus of the user using GPS, A trajectory display control step for displaying on a map, a reference line setting step for setting a virtual reference line at the center of the screen, and a map display control step for displacing the map displayed on the screen by a user operation And a movement trajectory correction step for correcting the movement trajectory displayed in the trajectory display control step based on the reference line when the map is displaced in the map display control step. A trajectory display method is provided.

  According to the present invention, in a state where GPS cannot function normally, the movement locus is displayed and corrected without predicting and calculating the current position, so that the current position used for this display correction is corrected. The error is not amplified by the prediction calculation. Therefore, the movement trajectory can be displayed more accurately on the screen having a limited display area.

It is a perspective view which shows the smart phone which concerns on one embodiment of this invention. It is a block diagram which shows the outline of a circuit structure of the smart phone. It is a flowchart which shows the process sequence of the smart phone. (A) is a figure which shows the movement locus | trajectory before correction | amendment, (b) is a figure which shows the movement locus | trajectory after correction | amendment. (A) is a figure which shows the movement locus | trajectory before correction | amendment, (b) is a figure which shows the movement locus | trajectory after correction | amendment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a smart phone 1 according to an embodiment of the present invention. As is well known, the smart phone 1 can be connected to various sites via a hot spot via Wi-Fi or directly via the Internet via a wired USB, and has a display unit 40.

  The display unit 40 includes a rectangular screen 401 integrally having long sides 41 and 42 facing each other and short sides 43 and 44 shorter than the long sides 41 and 42.

  In the present embodiment, the short lines 43 and 44 of the screen 401 are bisected and orthogonal to each other, and a virtual line extending along the long sides 41 and 42 is referred to as a reference line 2. The reference line 2 is assumed to be along the moving direction of the user by extending one short side 43 on the user's hand side as a base end and the other short side 44 extending further forward. That is, when the user moves on foot while looking at the screen 401, the screen 401 is almost horizontal, so the direction in which the reference line 2 extends becomes the moving direction of the user.

  FIG. 2 is a block diagram showing a circuit configuration of the smart phone 1. As illustrated, the smart phone 1 includes a control unit 402, a program storage unit 403, a user data storage unit 404, a GPS unit 405, a communication unit 406, a clock unit 407, a reference sensor unit 408, the display unit 40, and an input unit 410. , And an auxiliary sensor unit 411 and a map data storage unit 412.

  The control unit 402 includes a CPU (Central Processing Unit), a CPU peripheral circuit, a working memory such as a RAM (Random Access Memory), and the like, and controls the overall operation of the smartphone 1.

  The GPS unit 405 measures the current position using a known GPS. That is, the GPS unit 405 receives radio waves transmitted from a plurality of positioning satellites (GPS satellites) by the antenna 5a, thereby acquiring position data composed of latitude and longitude indicating the current position. The position information indicating the current position of the user is supplied to the control unit 402.

  The communication unit 406 has a wireless communication function, and can exchange data by wireless connection to a server.

  The clock unit 407 counts the current time and supplies time data indicating the current time to the control unit 402. Further, the clock unit 407 has a calendar function, and supplies the current date data and day data to the control unit 402.

  The reference sensor unit 408 mainly includes an acceleration sensor, a gyro sensor, an orientation sensor, and the like, an amplifier that amplifies detection signals of these sensors, and an A / D converter, and the acceleration in the direction of the reference line 2 in the smart phone 1. The waveform data indicating the change in the frequency is supplied to the control unit 402 as operation information indicating the user's traveling direction.

  The program storage unit 403 is a ROM (Read Only Memory) or the like that stores various programs and data necessary for the control unit 402 (specifically, the CPU) to control the smart phone 1. The programs stored in the program storage unit 403 include programs that cause the control unit 402 to execute processing shown in a flowchart described later.

  The input unit 410 includes a touch interface having a touch sensor disposed on the screen 401 or a multi-touch interface, and the presence or absence of a touch of the finger when the user swipes the finger on the screen 401 (swipe, swiping) Etc. are detected. Therefore, the program storage unit 403 rotates the map or image displayed on the screen 401 at that time according to the finger movement (swipe) on the screen 401 detected by the touch interface or the multi-touch interface. And programs to slide and slide.

The auxiliary sensor unit 411 determines the current position of the user in a state where the GPS unit 405 cannot function normally, for example, the reception environment is poor due to the presence of a building or the like and the radio wave transmitted from the satellite cannot be received. Works to detect.
The map data storage unit 412 stores map data downloaded from the server.

  The smart phone 1 is provided with an audio modulation / demodulation circuit having a microphone, a speaker, etc. for functioning as a mobile phone, but these are not shown.

  FIG. 3 is a flowchart showing the operation of the smartphone 1 according to the present embodiment. When the movement trajectory display mode is set, the control unit 402 executes processing based on the program stored in the program storage unit 403 as shown in the flowchart of FIG.

  That is, based on the current position acquired in advance by the GPS unit 405, the map data including the current position is searched from the map data stored in the map data storage unit 412, and the searched map data is reproduced to display the screen 401. A map is displayed (step S1). Next, the current position is acquired by the GPS unit 405 or the auxiliary sensor unit 411 at predetermined time intervals (step S2). Then, the moving position is drawn by marking the current position acquired at the predetermined time interval on the map displayed on the screen 401 (step S3).

  As a result of the processing in step S3, the movement trajectory A is displayed on the screen 401 as indicated by “× −− × −− ×” in FIGS. However, at this time, if the data from the GPS unit 405 or the auxiliary sensor unit 411 includes an error, the user proceeds in the direction of the broken line arrow B as shown in FIG. The movement trajectory A may be displayed on the screen 401 in some cases. That is, there is an angular error between the user's movement direction (the direction of the broken arrow B) and the drawn movement locus A.

  In this way, the user who recognizes that an angular error has occurred between A and B rotates the map, for example, by swiping on the screen 401 to correct this. Then, the determination in the next step S4 is YES, and the control unit 402 advances the process from step S4 to step S5. Then, the rotation correction is performed so that the movement locus A approaches the reference line 2 by the processing in step S5.

  That is, when the user rotates the map, there is a high probability that the user proceeds in the longitudinal direction along the reference line 2 of the screen 401 (the direction in which the map display is wide). Therefore, the rotation correction is performed so that the movement locus A approaches the reference line 2.

  For the rotation correction in this step S5, for example, as shown in FIG. 4B, a linearized arrow A ′ obtained by linearizing the movement locus A is assumed. Then, a correction movement locus is drawn at a position of 0.3D from the reference line 2 side with respect to the angle D formed by the straightening arrow A ′ and the reference line 2.

  As a result of the processing in step S5, the corrected movement locus C is drawn on the screen 401 as shown by “●-●-●” in FIG. Therefore, the movement trajectory can be displayed with higher accuracy on the screen 401 having a limited display area.

  Further, in step S6 following step S4 or step S5, it is determined whether or not a map slide operation has been performed. That is, as described above, the movement trajectory A is displayed on the screen 401 as indicated by “× −− × −− ×” in FIG. However, if the data from the GPS unit 405 or the auxiliary sensor unit 411 includes an error at this time, the movement locus A is displayed on the screen 401 even though the user is moving in the direction of the broken line arrow B. There is a case to go. That is, the movement trajectory A in the direction opposite to the moving direction of the user (the direction of the dashed arrow B) has been drawn.

In this way, the user who recognizes that the movement trajectory A in the reverse direction has been drawn slides the map to the hand side (short side 43 side), for example, by swiping on the screen 401 to correct this. . Then, the determination in the next step S6 becomes YES, and the control unit 402 advances the process from step S6 to step S7. And the correction | amendment which deletes the locus | trajectory below a screen from the present position P by the process in this step S7 is performed.

That is, when the user slides the map, there is a high probability of proceeding in the direction opposite to the sliding direction (in this example, the upper side of the screen 401 (the short side 44 side)). Therefore, the corrected movement locus is drawn by deleting and excluding the lower portion of the screen from the current position P that is the starting point of the movement locus A.

  In addition, since such a phenomenon that the movement trajectory A is shifted is likely to occur when the user's moving direction (the direction of the screen 401 of the smartphone 1) suddenly changes, instead of the user's swipe operation, For example, it is possible to make the determination in step S4 using the output of an acceleration sensor, a gyro sensor, or a direction sensor.

Thereafter, the corrected movement trajectory C is drawn on the screen 401 as shown by “●-●-●” in FIG. Therefore, it is possible to display the movement locus with higher accuracy on the screen 401 having a limited display area.

  Then, in step S8 following step S6 or step S7, it is determined whether or not the movement trajectory display mode that has been set has been completed, for example, by switching to another mode. The processing from step S1 is repeated until the movement locus display mode is finished, and the processing is finished when the movement locus display mode is finished.

  When the rotation is corrected in step S5, a correction movement locus is drawn at a position 0.3D from the reference line 2 side with respect to the angle D formed by the straightening arrow A 'and the reference line 2. did. However, this position is merely an example, and other ratio positions may be used as long as they are within the range of the angle D and are preferably close to the reference line 2.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these, The invention described in the claim and its equal range are included.

  The claims appended at the time of filing this application will be appended below.

<Claim 1>
A movement locus display device that has a screen and displays the movement locus of the user together with a map on the screen,
Trajectory display control means for detecting a user's movement trajectory using GPS and displaying it on the map;
A reference line setting means for setting a virtual reference line at the center of the screen;
Map display control means for displacing the map displayed on the screen;
A movement trajectory correction means for correcting the movement trajectory displayed by the trajectory display control means based on the reference line when the map display control means displaces the map;
A moving trajectory display device comprising:

<Claim 2>
The map display control means includes a rotation control means for rotating a map displayed on the screen by an operation,
2. The movement trajectory display device according to claim 1, wherein the movement trajectory correction means corrects the movement trajectory so as to approach the reference line when the rotation control means rotates the map.

<Claim 3>
The movement trajectory display device according to claim 1, wherein the screen has a rectangular shape, and the reference line setting unit sets the reference line along a longitudinal direction of the screen.

<Claim 4>
4. The movement trajectory display according to claim 1, wherein the movement trajectory correcting means corrects the movement trajectory so as to approach the reference line within an angle range formed by the movement trajectory and a reference line. apparatus.

<Claim 5>
The map display control means includes a slide control means for sliding the map displayed on the screen by an operation,
The movement trajectory correction unit corrects the movement trajectory by deleting the movement trajectory displayed on the side opposite to the current position when the slide control unit slides the map. The moving locus display device according to claim 1.

<Claim 6>
6. The movement trajectory display device according to claim 1, wherein the map display control means for displacing the map displaces the map by a user's swipe operation.

<Claim 7>
A computer having a screen and a moving track display device that displays the moving track of the user together with a map on the screen;
Trajectory display control means for detecting a user's movement trajectory using GPS and displaying it on the map;
A reference line setting means for setting a virtual reference line at the center of the screen;
Map display control means for displacing the map displayed on the screen;
A movement trajectory correction means for correcting the movement trajectory displayed by the trajectory display control means based on the reference line when the map display control means displaces the map;
A program characterized by making it function.

<Claim 8>
A movement locus display method for displaying a movement locus of the user together with a map on the screen,
A locus display control step of detecting a movement locus of the user using GPS and displaying the locus on the map;
A reference line setting step for setting a virtual reference line at the center of the screen;
A map display control step of displacing the map displayed on the screen by a user operation;
A movement trajectory correction step of correcting the movement trajectory displayed by the trajectory display control step based on the reference line when the map is displaced in the map display control step;
The movement locus | trajectory display method characterized by including this.

DESCRIPTION OF SYMBOLS 1 Smart phone 2 Reference line 40 Display part 401 Screen 402 Control part 403 Program memory | storage part 404 User data memory | storage part 405 GPS part 406 Communication part 407 Clock part 408 Reference | standard sensor part 410 Input part 411 Auxiliary sensor part 412 Map data memory | storage part P Present position

Claims (8)

It has a screen, a moving locus display device for displaying a moving locus Yu over The maps together with this screen,
Trajectory display control means for detecting a user's movement trajectory using GPS and displaying it on the map;
A reference line setting means for setting a virtual reference line at the center of the screen;
Map display control means for displacing the map displayed on the screen;
A movement trajectory correction means for correcting the movement trajectory displayed by the trajectory display control means based on the reference line when the map display control means displaces the map;
A moving trajectory display device comprising: The map display control means includes a rotation control means for rotating a map displayed on the screen by an operation,
2. The movement trajectory display device according to claim 1, wherein the movement trajectory correction means corrects the movement trajectory so as to approach the reference line when the rotation control means rotates the map.   The movement trajectory display device according to claim 1, wherein the screen has a rectangular shape, and the reference line setting unit sets the reference line along a longitudinal direction of the screen. 4. The movement according to claim 1, wherein the movement locus correction unit corrects the movement locus so as to approach the reference line within an angle range formed by the movement locus and a reference line. Trajectory display device. The map display control means includes a slide control means for sliding the map displayed on the screen by an operation,
The movement locus correcting means, when the slide control means has slid map, by deleting the movement locus displayed on the slide side from the starting point of the movement trajectory, so as to correct the movement track The movement locus display device according to any one of claims 1 to 4, wherein   6. The movement trajectory display device according to claim 1, wherein the map display control means for displacing the map displaces the map by a user's swipe operation. Has a screen, a computer movement locus display device has to view the movement locus Yu over The maps together with this screen,
Trajectory display control means for detecting a user's movement trajectory using GPS and displaying it on the map;
A reference line setting means for setting a virtual reference line at the center of the screen;
Map display control means for displacing the map displayed on the screen;
A movement trajectory correction means for correcting the movement trajectory displayed by the trajectory display control means based on the reference line when the map display control means displaces the map;
A program characterized by making it function. Has a screen, a movement trajectory display method for displaying a moving locus of the User over The maps together with on this screen,
A locus display control step of detecting a movement locus of the user using GPS and displaying the locus on the map;
A reference line setting step for setting a virtual reference line at the center of the screen;
A map display control step of displacing the map displayed on the screen by a user operation;
A movement trajectory correction step of correcting the movement trajectory displayed by the trajectory display control step based on the reference line when the map is displaced in the map display control step;
The movement locus | trajectory display method characterized by including this.