JP2019128300A - Electronic watch, and method for controlling electronic watch - Google Patents

Abstract

To easily set, in an electronic watch, a difference in altitude from the current position of the electronic watch to an arbitrary target.SOLUTION: An altitude difference specification unit 68 specifies a difference in altitude ΔALT from the current position to a destination Dst on the basis of the angle of inclination θ specified by an inclination specification unit 67 and the distance specified by a distance specification unit 64. An electronic watch W can thus specify the difference in altitude ΔALT from the current position to an arbitrary destination Dst without using a device other than the electronic watch W, and thereby can easily set the difference in altitude ΔALT from the current position to the arbitrary destination Dst.SELECTED DRAWING: Figure 25

Description

  The present invention relates to an electronic timepiece and a method for controlling the electronic timepiece.

  In recent years, an electronic timepiece having a function of specifying a current position by GPS (Global Positioning System) and a compass function has been widely used. For example, Patent Document 1 discloses an electronic timepiece that performs navigation to a target position by specifying the current position by GPS and indicating the distance from the specified current position to the target position and the target azimuth. Has been. In this electronic timepiece, the coordinates of the position of a target candidate such as a residence, an accommodation facility, etc. are stored in advance, and the coordinates of the position of the target selected from the target candidates are set.

Japanese Patent Publication No. 2000-512014

  When the user of the electronic watch is climbing, there is a user's desire to set an altitude difference from the current position of the electronic watch to an arbitrary target. In order to set the height difference from the current position of the electronic clock to any target, for example, the map is displayed, and the coordinate of the position of the target is specified by selecting any point on the displayed map, and the electronic clock It is possible to obtain the altitude difference from the current position to any target. However, the electronic timepiece is mainly intended to display the measured time, and the map can not be displayed only in the area for displaying the time. Therefore, in the conventional electronic timepiece, it is difficult to set the height difference from the current position of the electronic timepiece to an arbitrary target. For example, in order to set an altitude difference from the current position of the electronic watch to any target, another device capable of displaying a map is required.

  The present invention has an object to be solved, in an electronic watch, to easily set an altitude difference from a current position of the electronic watch to an arbitrary target.

  An electronic timepiece according to a preferred aspect (first aspect) of the present invention is an electronic timepiece, wherein the acceleration sensor, the first member, and the acceleration sensor when the first member is adjusted in a target direction. A tilt identifying unit that identifies the tilt of the electronic timepiece with respect to a horizontal plane perpendicular to the direction of gravity based on the gravitational acceleration measured by the unit; and the distance from the current position to the target and the tilt identified by the tilt identifying unit. And a height difference identification unit that specifies a height difference from the current position to the target.

  According to the aspect described above, the electronic timepiece can specify the inclination to the arbitrary target with respect to the horizontal plane by the user adjusting the inclination of the electronic timepiece so that the arbitrary target is positioned in the target direction. Therefore, as long as the electronic timepiece acquires the distance from the current position to the arbitrary target, the altitude difference to the arbitrary target can be specified based on the distance from the current position to the arbitrary target and the inclination of the electronic timepiece. . As described above, since the electronic timepiece can set the altitude difference from the current position to any target without using any device other than the electronic watch, the altitude difference from the current position to any target can be easily set. It becomes possible.

  In a preferred example (second aspect) of the first aspect, a direction including the second member and moving from the second member toward the first member is defined as the target direction.

  In the first aspect, if the first member is a pointer, the line segment from one end of the pointer to the other end is used as a guideline, and the direction of this line segment is adjusted as the target direction to identify the target orientation. It becomes possible. Similarly, if the first member is a vertically long member, the direction of this line segment is adjusted as the target direction using the line segment from the first surface to the second surface orthogonal to the longitudinal direction of the first member as a guide By doing so, it becomes possible to specify the target orientation. Here, the longer the line segment used as a guide, the more accurately the target orientation can be specified. And in the aspect mentioned above, it is possible to include the length of the 1st member itself, and the length of the 2nd member itself in the line segment from the 2nd member used as a standard to the 1st member. Therefore, in the above-described aspect, it is possible to more accurately identify the orientation of the target as compared to the first aspect.

  In a preferred example (third aspect) of the first aspect and the second aspect, including an atmospheric pressure sensor, the altitude difference specifying unit is measured by the atmospheric pressure sensor at a first measurement position where the acceleration sensor measures the gravitational acceleration. Based on the atmospheric pressure, the atmospheric pressure measured by the atmospheric pressure sensor at a second measurement position different from the first measurement position, and the altitude difference, an altitude difference from the second measurement position to the target is specified.

  According to the aspect described above, after setting the altitude difference from the first measurement position to an arbitrary target, even if the user does not adjust the inclination of the electronic timepiece with respect to the horizontal plane, the electronic timepiece is set to the second measurement position, for example, The altitude difference from the current position of the electronic timepiece to the target can be displayed.

  In a preferable example (fourth aspect) of the first to third aspects, a value based on an amount by which the crown is rotated by the rotation operation received by the crown, the reception unit that receives the rotation operation of the crown, and the reception unit that is received by the reception unit. And an acquisition unit for acquiring the distance from the current position to the target.

  According to the above-described aspect, the user can input the distance from the current position of the electronic watch to the target using the adjustment means that a general watch has, which is the crown.

  A control method of an electronic watch according to a preferred aspect (fifth aspect) of the present invention is a control method of an electronic watch including an acceleration sensor for measuring an acceleration and a first member, wherein the electronic watch is When the first member is adjusted in the target direction, the inclination of the electronic timepiece with respect to the horizontal plane perpendicular to the gravity direction is specified based on the gravitational acceleration measured by the acceleration sensor, and the distance from the current position to the target An altitude difference from the current position to the target is identified based on the inclination.

  According to the above-described aspect, it is possible to easily set the altitude difference from the current position to an arbitrary target without using a device other than an electronic timepiece.

FIG. 2 is a plan view showing the electronic timepiece W in the first embodiment. The block diagram of the electronic timepiece W in 1st Embodiment. The block diagram of the control part 6 in 1st Embodiment. The figure which shows the specific example of the azimuth | direction angle | corner (psi) of the destination Dst. The figure which shows the flowchart of destination setting mode. The figure which shows the flowchart of navigation mode. The top view which shows the electronic timepiece W concerning 2nd Embodiment. The block diagram of the control part 6 concerning 2nd Embodiment. The figure which shows the specific example of the coordinate of the destination Dst. The figure which shows the flowchart of 1st base registration mode. The figure which shows the flowchart of 2nd base registration mode. The top view which shows the electronic timepiece W in a 1st modification (the 1). The top view which shows the electronic timepiece W in a 1st modification (the 2). The block diagram of the electronic timepiece W in a 1st modification. The block diagram of the control part 6 in a 1st modification. The figure which shows the specific example of the height difference to the destination Dst. The figure which shows the flowchart of the destination setting mode in a 1st modification. The figure which shows the flowchart of the navigation mode in a 1st modification. The top view which shows the electronic timepiece W in a 2nd modification (the 1). The top view which shows the electronic timepiece W in a 2nd modification (the 2). The figure which shows the flowchart of the destination setting mode in a 2nd modification. The figure which shows the flowchart of the navigation mode in a 2nd modification. The top view which shows the electronic timepiece W in a 3rd modification. The block diagram of the electronic timepiece W in a 3rd modification. The block diagram of the control part 6 in a 3rd modification. The figure which shows the flowchart of destination altitude setting mode. The top view which shows the electronic timepiece W in a 4th modification. The figure which shows the example which adjusted the direction and inclination of the electronic timepiece. FIG. 7 is a view showing a plan view from the x-axis positive direction when the inclination of the electronic timepiece W is adjusted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, in each figure, the size and scale of each part are appropriately changed from the actual ones. Further, since the embodiments described below are preferable specific examples of the present invention, various technically preferable limitations are attached thereto. However, the scope of the present invention is particularly limited in the following description. As long as there is no statement of purport, it is not limited to these forms.

A. First Embodiment Hereinafter, an electronic timepiece W in a first embodiment will be described.

A. 1. Overview of Electronic Timepiece W in First Embodiment FIG. 1 is a plan view showing an electronic timepiece W in the first embodiment. The electronic timepiece W includes an operation button A, an operation button B, an operation button C, a crown D, a bezel E, a second band portion F (an example of a “second member”), and a first band portion G ( One example of “first member” and the display unit 10. As shown in FIG. 1, the electronic timepiece W is an analog timepiece that measures time.

  In FIG. 1, the direction from the back surface to the front surface on the display surface of the display unit 10 is a positive z-axis direction. Then, two axes orthogonal to the z-axis are xy axes, and a direction from the center of the display unit 10 to the crown D is x-axis positive direction. Alternatively, the normal direction of the display surface of the display unit 10 is the z axis, and the direction from the center of the display surface to the second band portion F or the first band portion G is the y axis and an axis orthogonal to the z axis and y axis It can also be the x-axis. The direction from the second band portion F toward the first band portion G (an example of “target direction”), that is, the y-axis positive direction is defined as “12 o'clock direction”. Therefore, for example, the negative y-axis direction is “6 o'clock direction”, and the positive x-axis direction is “3 o'clock direction”. The coordinate system shown in FIG. 1 is a local coordinate system of the electronic timepiece W that shows coordinates based on the electronic timepiece W. Hereinafter, it is assumed that the x-axis, y-axis, and z-axis indicated by small letters are coordinate axes of the local coordinate system of the electronic timepiece W. When the orientation of the electronic timepiece W changes, the orientation of the electronic timepiece W changes the orientation of the x-axis, the y-axis, and the z-axis according to the change.

  The operation button A, the operation button B, the operation button C, and the crown D are provided on the side surface of the electronic timepiece W. The crown D is a member that can be rotated and pulled out. The bezel E is a member that protects and reinforces the electronic timepiece W. The second band part F and the first band part G are members for attaching the electronic timepiece W to the user's wrist.

  The display unit 10 has an hour hand 11, a minute hand 12, a pointer 13, a dial ring 14, a 6 o'clock side information display unit 20 provided on the 6 o'clock side, and a 2 o'clock side information display provided on the 2 o'clock side Unit 30, a 10 o'clock side information display unit 40 provided on the 10 o'clock side, and a date display unit 50. The dial ring 14 is formed with a 12-hour scale 14a in an annular shape. The date display unit 50 is provided on the 6 o'clock side of the 6 o'clock side information display unit 20.

  The 6 o'clock side information display unit 20 includes a dial 21 and a mode pointer 22. On the dial 21, characters representing the operation mode are written. The electronic timepiece W has, as an operation mode, a navigation mode for performing navigation to a destination Dst (see FIG. 4) (an example of “a target position”), a destination setting mode for setting a destination Dst, and the current time. A time display mode shown, a chronograph mode for performing a chronograph function, and a compass mode showing a north direction. The dial 21 represents a character string 21a “NAVI” representing a navigation mode, a character string 21b “DEST” representing a destination setting mode, a character string 21c “TIME” representing a time display mode, and a chronograph mode. A character string 21d “CHR” and a character string 21e “COMP” representing the compass mode are described.

  The 6 o'clock side information display unit 20 displays that the operation mode is the navigation mode by the mode pointer 22 pointing the character string 21a. Further, the 6 o'clock side information display unit 20 displays that the operation mode is the destination setting mode by the mode pointer 22 pointing the character string 21b. Further, the 6 o'clock side information display unit 20 displays that the operation mode is the time display mode by the mode pointer 22 pointing the character string 21c. Further, the 6 o'clock side information display unit 20 indicates that the operation mode is the chronograph mode by the mode pointer 22 pointing the character string 21 d. Further, the 6 o'clock side information display unit 20 displays that the operation mode is the compass mode by the mode pointer 22 pointing the character string 21 e.

A. 1.1. Outline of Destination Setting Mode In the destination setting mode, the electronic timepiece W can set the coordinates (position) of the destination Dst at the departure point Dep (see FIG. 4). With regard to the departure place Dep and the destination Dst, it is necessary for the user to be able to view the destination Dst from the departure place Dep. When the operation button C is pressed several times by the user of the electronic timepiece W at the departure point Dep and the mode pointer 22 indicates the character string 21b, the electronic timepiece W sets the operation mode to the destination setting mode. Here, in the first embodiment, the coordinates of the destination Dst can be set more accurately as the altitudes of the departure point Dep for performing the destination setting mode and the destination Dst are equal.

  When the operation mode is set to the destination setting mode and the operation button B is continuously pressed for a predetermined time (for example, 3 seconds) or more, the electronic timepiece W is obtained from the GPS receiver 2 (see FIG. 2). The coordinates of the current position are identified based on the received signal. The predetermined time is not limited to 3 seconds and can be changed as appropriate.

  Next, in the electronic timepiece W, when the direction of the electronic timepiece W is adjusted such that the destination Dst is positioned in the 12 o'clock direction of the electronic timepiece W, the geomagnetism measured by the magnetic sensor 3 (see FIG. 2) , That is, the azimuth angle ψ of the destination Dst (an example of “target azimuth”) (see FIG. 4) (see FIG. 4). The “azimuth angle” shown below is based on geographical north (hereinafter simply referred to as “true north”) as a reference direction, and clockwise as a positive angle. Furthermore, the electronic clock W specifies the coordinates of the destination Dst based on the distance from the current position to the destination Dst, the azimuth angle 目的 of the destination Dst, and the coordinates of the current position of the electronic clock W.

A. 1.2. Overview of Navigation Mode In the navigation mode, the electronic clock W can perform navigation for heading to the set destination Dst. When the operation button C is pressed several times by the user and the mode pointer 22 indicates the character string 21a, the electronic timepiece W sets the operation mode to the navigation mode.

  When the operation mode is set to the navigation mode and the operation button B is continuously pressed for a predetermined time or more, the electronic clock W is moved by the GPS module to the coordinates of the current position (example of “third position”) Example of “third coordinate (third position)” is acquired. Then, the electronic timepiece W displays the distance from the current position to the destination Dst by the 2 o'clock side information display unit 30 based on the coordinates of the current position and the coordinates of the destination Dst, and the azimuth angle ψ of the destination Dst. It is displayed by the 10 o'clock side information display unit 40. The azimuth angle ψ may be indicated by a numerical value by the 10 o'clock side information display unit 40, or the direction of the destination Dst may be indicated by a pointer. Furthermore, the electronic timepiece W displays the heading of true north by the pointer 13 based on the magnetic north measured by the magnetic sensor 3.

  The 2 o'clock side information display unit 30 has a dial 31, a numerical display short hand 32 (example of “second hand”), and a numerical display long hand 33 (example of “second hand”). The dial 31 is provided with a scale 31 a on which 0 to 9 (example of “symbol indicating number”) are written. In the navigation mode, each value of the scale 31a is used as the value of the first digit of "km" for the numeric display short hand 32, and for the numeric digit of the 100th digit of "m" for the numerical display long hand 33. Used as a value. Accordingly, in the navigation mode, the 2 o'clock side information display unit 30 displays the distance from the current position to the destination Dst by the number indicated by the numerical display short hand 32 × 1 km + the number indicated by the numerical display long hand 33 × 100 m.

  The 10 o'clock side information display unit 40 has a dial 41 and a small second hand 42 (example of “first pointer”). The dial 41 is provided with a scale 41 a for the second. In the navigation mode, the 10 o'clock side information display unit 40 displays the azimuth angle ψ of the destination Dst according to the direction of the small second hand 42.

A. 1.3. Outline of Time Display Mode In the time display mode, the electronic timepiece W can display the current time. When the operation button C is pressed several times by the user and the mode pointer 22 indicates the character string 21c, the electronic timepiece W sets the operation mode to the time display mode.

  When the operation mode is set to the time display mode, the display unit 10 displays the hour and minute of the current time using the hour hand 11 and the minute hand 12 based on the scale 14a. The indication positions of the hour hand 11 and the minute hand 12 are changed according to the operation of the crown D, for example. Further, the display unit 10 displays the second of the current time using the small second hand 42 with the scale 41a as a reference.

A. 1.4. Overview of Chronograph Mode In the chronograph mode, the electronic timepiece W can perform a stopwatch function. When the operation button C is pressed several times by the user and the mode pointer 22 indicates the character string 21d, the electronic timepiece W sets the operation mode to the chronograph mode.

  When the operation button B is pressed while the operation mode is set to the chronograph mode, the display unit 10 uses the pointer 13 to display the elapsed time from the pressing of the operation button B to the present time. When the operation button B is pressed again, the display unit 10 uses the pointer 13 to display an elapsed time from when the operation button B is pressed for the first time to when the operation button B is pressed for the second time.

A. 1.5. Overview of Compass Mode In compass mode, the electronic clock W can indicate the heading of true north. When the operation button C is pressed several times by the user and the mode pointer 22 indicates the character string 21e, the electronic timepiece W sets the operation mode to the compass mode.

  When the operation mode is set to the compass mode, the display unit 10 controls the pointer 13 based on the direction of the magnetic north measured by the magnetic sensor 3 so that the direction of the pointer 13 faces north. Since the magnetic north orientation is deviated from the true north by a declination, the electronic timepiece W is preferably corrected so as to remove the declination deviation from the magnetic north orientation.

  The date display unit 50 includes a date wheel 51 that displays the date of the calendar.

  The block diagram of the electronic timepiece W is shown in FIG. In FIG. 2, the same components as those shown in FIG. 1 are denoted by the same reference numerals.

  The electronic timepiece W includes the hour hand 11, the minute hand 12, and the pointer 13, and the hour hand 11, the minute hand 12, the pointer 13, the train wheel mechanism 201 and the train wheel mechanism 202, the stepping motor 301 and the stepping motor 302, and the motor driver 401 and A motor driver 402 is included. The motor driver 401 drives the stepping motor 301 to drive the hour hand 11 and the minute hand 12 via the train wheel mechanism 201. The motor driver 402 drives the stepping motor 302 to drive the hands 13 via the train wheel mechanism 202.

  The electronic timepiece W includes a mode pointer 22, a gear train mechanism 203, a stepping motor 303, and a motor driver 403 as a configuration related to the 6 o'clock side information display unit 20. The motor driver 403 drives the stepping motor 303 to drive the mode pointer 22 via the wheel train mechanism 203.

  The electronic timepiece W includes a numerical display short hand 32, a numerical display long hand 33, a train wheel mechanism 204, a stepping motor 304, and a motor driver 404 as a configuration related to the 2 o'clock side information display unit 30. The motor driver 404 drives the stepping motor 304 to drive the numerical indication short hand 32 and the numerical indication long hand 33 via the train wheel mechanism 204.

  The electronic timepiece W includes a small second hand 42, a gear train mechanism 205, a stepping motor 305, and a motor driver 405 as a configuration related to the 10 o'clock side information display unit 40. The motor driver 405 drives the stepping motor 305 to drive the short second hand 42 via the train wheel mechanism 205.

  The electronic timepiece W includes a date dial 51, a gear train mechanism 206, a stepping motor 306, and a motor driver 406 as a configuration related to the date display unit 50. The motor driver 406 drives the stepping motor 306 in order to drive the date wheel 51 via the wheel train mechanism 206.

  The electronic timepiece W further includes an oscillation circuit 1, a GPS receiver 2, a magnetic sensor 3, a storage unit 4, a control unit 6, an operation button A, an operation button B, an operation button C, and a crown D. including.

  The oscillator circuit 1 generates a clock signal used to clock time. The frequency of the clock signal is, for example, 32.768 kHz. The frequency of the clock signal is divided, and the clock signal having a frequency of 1 Hz is input to the control unit 6. The GPS receiver 2 receives satellite signals from GPS satellites, which are one of position information satellites. The magnetic sensor 3 measures magnetic north. The magnetic sensor 3 in the first embodiment employs a biaxial magnetic sensor. The two-axis magnetic sensor measures magnetic north on the assumption that the two-axis magnetic sensor is parallel to the horizontal plane perpendicular to the direction of gravity.

  The storage unit 4 is a readable and writable non-volatile recording medium. The storage unit 4 is, for example, a flash memory. The storage unit 4 is not limited to the flash memory and can be changed as appropriate. The storage unit 4 stores, for example, a program executed by the control unit 6.

  The control unit 6 is, for example, a computer such as a CPU (Central Processing Unit). The control unit 6 controls the entire electronic timepiece W. The configuration of the control unit 6 will be described with reference to FIG.

A. 2. Configuration of Control Unit 6 According to First Embodiment FIG. 3 shows a configuration diagram of the control unit 6. The control unit 6 reads and executes the program stored in the storage unit 4 to display the display control unit 61, the current position specifying unit 62, the receiving unit 63, the obtaining unit 64, the direction specifying unit 65, and coordinates. And the identification unit 66. Hereinafter, the configuration of the control unit 6 will be described for each of the destination setting mode and the navigation mode.

A. 2.1. Configuration of Control Unit 6 in Destination Setting Mode In the destination setting mode, the current position specifying unit 62 specifies the coordinates of the current position of the electronic timepiece W. Specifically, the current position specifying unit 62 acquires a satellite signal from the GPS receiver 2 and specifies the coordinates of the current position based on the acquired satellite signal.

  The accepting unit 63 accepts the rotation operation of the crown D. The acquisition unit 64 acquires a value based on the amount of rotation of the crown D by the rotation operation received by the reception unit 63 as a distance from the current position to the destination Dst. For example, it is assumed that the designer of the electronic timepiece W has set the electronic timepiece W so as to accept a distance of 1 km when the crown D is rotated once in the 12 o'clock direction. In this case, if the crown D is rotated 36 degrees in the 12 o'clock direction, a distance of 100 m is acquired, so the acquisition unit 64 sets (the angle at which the crown D is rotated / 36 degrees) × 100 m from the current position to the target. Acquire as the distance to the ground Dst. For the distance from the current position to the destination Dst, for example, the user specifies the distance from the current position to the destination Dst by visual observation. For example, there are the following two methods of measuring the distance from the current position to the destination Dst.

  The first eye measurement method of the distance is a method utilizing the fact that the distance between human eyes and the length of the arm is approximately 10 times. When the size of an object at the destination Dst (hereinafter referred to as “target”) is generally known (for example, the size of a building), the user raises his / her arm and stands with the thumb Look at how many points of the object the thumb can see when looking with the right eye and with the left eye. Then, the user can obtain an approximate distance by the size of the target object × the distance that the object has moved × 10.

  The second eye distance measuring method is a method that utilizes the fact that the angle of the width of the thumb is approximately 2 degrees when the arm is extended and the thumb is raised. If the size of the target is roughly known, the angle can be used to approximate the distance. For example, assuming that the size of the target is O, the distance to the target is L, and the viewing angle of the target viewed from the user is θ, O can be approximated as OOL × tan (θ) when θ is small. Using this, the user can calculate that the distance is approximately 28.6 times the size of the object according to the following equation when there is an object that stands upright and looks like the width of the thumb.

  L ≒ O × 1 / tan (2 degrees) ≒ O × 28.6

  The acquisition unit 64 outputs the acquired distance to the display control unit 61 and the coordinate specification unit 66. The display control unit 61 controls the numerical display short hand 32 and the numerical display long hand 33 so as to indicate the received distance by the scale 31 a indicated by the numerical display short hand 32 and the numerical display long hand 33. For example, in the example of FIG. 1, the numerical value display short hand 32 and the numerical value display long hand 33 indicate that the distance acquired by the acquisition unit 64 is 1.6 km.

  When the direction of the electronic timepiece W is adjusted such that the destination Dst is positioned in the target direction, the direction identification unit 65 determines the destination Dst based on the magnetic north measured by the magnetic sensor 3 and the target direction. Identify the azimuth angle ψ. The specific example of azimuth angle (zeta) of the concrete destination Dst is shown using FIG.

  FIG. 4 shows a specific example of the azimuth angle ψ of the destination Dst. As shown in FIG. 4, the user adjusts the direction of the electronic timepiece W so that the destination Dst is located in the 12 o'clock direction Di1. FIG. 4 shows the relationship among the 12 o'clock direction Di1, the electronic timepiece W, and the destination Dst in the global coordinate system. In the global coordinate system, the magnetic north direction Di2 is defined as the Y-axis positive direction, the gravity direction is defined as the Z-axis negative direction, and the directions perpendicular to the Y-axis and the Z-axis are defined as the X-axis. In FIG. 4, it is assumed that the Z axis and the z axis are parallel.

At the departure point Dep, when the user finishes adjusting the direction of the electronic timepiece W, the user presses the operation button B. When detecting the pressing operation of the operation button B, the direction identification unit 65 regards the direction of the electronic clock W as being adjusted, and acquires the direction di2 of magnetic north measured by the magnetic sensor 3. As shown in FIG. 4, the acquired azimuth di2 of the magnetic north is a direction in the local coordinate system of the electronic timepiece W. The 12 o'clock direction di1 in the local coordinate system of the electronic timepiece W coincides with the positive y-axis direction.
The azimuth specifying unit 65 specifies the azimuth angle ψ of the destination Dst based on the 12 o'clock direction di1 and the magnetic north azimuth di2. As shown in FIG. 4, the global coordinate system can be converted to the local coordinate system of the electronic timepiece W by rotating around the Z axis by the same angle as the azimuth angle 目的 of the destination Dst. . And, this rotated angle can be specified by the azimuth di2 of magnetic north and the 12 o'clock direction di1. Therefore, the azimuth specifying unit 65 can specify the azimuth angle ψ of the destination Dst from the azimuth di2 of the magnetic north and the 12 o'clock direction di1. In the above description, the azimuth angle ψ is specified with respect to magnetic north. However, the azimuth angle may be specified with respect to true north corrected by adding a declination to magnetic north.

The explanation is returned to FIG.
The coordinate specifying unit 66 is based on the distance acquired by the acquiring unit 64, the azimuth angle ψ of the destination Dst specified by the azimuth specifying unit 65, and the coordinates of the current position of the electronic timepiece W specified by the current position specifying unit 62. The coordinates of the destination Dst are identified. As a method for specifying the coordinates of the destination Dst, for example, there are the following two methods.

  In the first method for specifying the coordinates of the destination Dst, the distance obtained by the acquisition unit 64 is separated from the coordinates of the current position of the electronic timepiece W by the azimuth angle ψ of the destination Dst by approximating the earth to a sphere. In this method, the coordinates of the position are specified as the coordinates of the destination Dst. The second method of identifying the coordinates of the destination Dst is a method of approximating the earth to a spheroid to identify the coordinates of the destination Dst. As a method of specifying the coordinates of the second point on the basis of the coordinates of the first point and the distance from the first point and the azimuth angle 回 転 in the spheroid, a sequential solution method of the Vincenty method can be mentioned.

A. 2.2. Configuration of Control Unit 6 in Navigation Mode In navigation mode, display control unit 61 determines the current position based on the coordinates of destination Dst specified by coordinate specifying unit 66 and the coordinates of the current position specified by current position specifying unit 62. The distance from the position to the destination Dst and the azimuth angle ψ of the destination Dst are specified. Then, the display control unit 61 controls the display unit 10 to display the destination Dst and the azimuth angle ψ of the destination Dst from the current position.

  Regarding the distance from the current position to the destination Dst, the display control unit 61 uses the scale 31a indicated by the numerical display short hand 32 and the numerical display long hand 33 to indicate the distance from the current position to the destination Dst. And control the numerical display long hand 33.

The azimuth angle ψ of the destination Dst specified based on the coordinates of the destination Dst and the coordinates of the current position is the azimuth angle ψ of the destination Dst in the global coordinate system. Therefore, the azimuth identification unit 65 identifies the magnetic north measured by the magnetic sensor 3 at the current position, and outputs the magnetic north to the display control unit 61. By specifying the magnetic north, it is possible to specify how many times the electronic timepiece W is rotated about the Z axis with respect to the global coordinate system, so the display control unit 61 sets the azimuth angle に お け る in the specified global coordinate system to It becomes possible to convert to the azimuth angle ψ of the destination Dst in the local coordinate system of the electronic clock W.
The display control unit 61 controls the small second hand 42 based on the azimuth angle 目的 of the destination Dst in the local coordinate system of the electronic timepiece W to indicate the azimuth angle of the destination Dst according to the direction of the small second hand 42. Further, the display control unit 61 controls the pointer 13 based on the magnetic north so as to indicate true north depending on the direction of the pointer 13.

A. 3. Flowcharts in Each Operation Mode Each of the destination setting mode and the navigation mode will be described using specific flowcharts.

A. 3.1. Flowchart of Destination Setting Mode FIG. 5 shows a flowchart of the destination setting mode. When the operation mode is set to the destination setting mode, the control unit 6 detects a pressing operation of the operation button B for a predetermined time or longer (step S1). When a pressing operation for a predetermined time or more is detected, the display control unit 61 directs the pointer 13 to the direction of 12 o'clock to notify the user of the start of the destination setting operation, and until the pointer 13 turns to the direction of 12 o'clock again Rotate 13 Next, the current position specifying unit 62 acquires satellite signals from the GPS receiver 2, and specifies coordinates of the current position based on the acquired satellite signals (step S2). The current position specifying unit 62 stores the coordinates of the specified current position in the storage unit 4. If the identification of the coordinates of the current position is successful, the display control unit 61 directs the pointer 13 to the 12 o'clock direction in order to notify the user that the identification of the coordinates of the current position is successful, and then the pointer 13 becomes again. The pointer 13 is rotated until it faces the 12 o'clock direction.

  The control unit 6 accepts a one-step drawer operation of the crown D (step S3). By accepting the one-step pull-out operation of the crown D, acceptance of the rotation operation of the crown D for accepting the distance from the current position to the destination Dst and measurement of the magnetic north direction by the magnetic sensor 3 are started. By the stage of step S3, it is preferable that the user measures the distance from the current position to the destination Dst. In addition, the display control unit 61 controls the pointer 13 so that the pointer 13 indicates true north based on the direction of magnetic north measured by the magnetic sensor 3.

  The accepting unit 63 accepts the rotation operation of the crown D (step S4). The display control unit 61 controls the numerical display short hand 32 and the numerical display long hand 33 so as to indicate the distance based on the amount of rotation of the crown D by the rotation operation by the scale 31 a indicated by the numerical display short hand 32 and the numerical display long hand 33. . The user adjusts the direction of the electronic timepiece W so that the destination Dst is positioned in the 12 o'clock direction of the electronic timepiece W. When the user finishes adjusting the direction of the electronic timepiece W and rotates the crown D according to the distance from the current position to the destination Dst, the user presses the operation button B.

  The control unit 6 receives the pressing operation of the operation button B (step S5). When the pressing operation of the operation button B is received, the acquisition unit 64 calculates a value based on the amount of rotation of the crown D from the time when the one-step drawer operation of the crown D is received until the time when the operation button B is pressed from the current position. Obtained as the distance to the destination Dst (step S6). Further, the direction specifying unit 65 considers that the direction of the electronic timepiece W is adjusted, acquires the magnetic north direction measured by the magnetic sensor 3, and based on the magnetic north direction and the 12 o'clock direction, The azimuth angle ψ of Dst is specified (step S7).

  The coordinate specifying unit 66 is based on the distance obtained by the obtaining unit 64, the azimuth angle ψ of the destination Dst specified by the direction specifying unit 65, and the coordinates of the current position of the electronic timepiece W specified by the current position specifying unit 62. The coordinates of the destination Dst are specified (step S8).

  The control unit 6 accepts a pushing operation of the crown D (step S9). When the pressing operation of the crown D is received, the control unit 6 stores the coordinates of the specified destination Dst in the storage unit 4 (step S10). After completion of the process of step S10, the control unit 6 ends the series of processes.

A. 3.2. Flowchart of Navigation Mode FIG. 6 shows a flowchart of navigation mode. When the operation mode is set to the navigation mode, the control unit 6 detects an operation of pressing the operation button B for a predetermined time or more (step S21). When the pressing operation for a predetermined time or more is detected, the current position specifying unit 62 acquires satellite signals from the GPS receiver 2 and specifies coordinates of the current position based on the acquired satellite signals (step S22).

  The display control unit 61 determines the distance from the current position to the destination Dst and the destination Dst based on the coordinates of the destination Dst stored in the storage unit 4 and the coordinates of the current position specified by the current position specifying unit 62. Is specified (step S23). Then, the display control unit 61 controls the numerical display short hand 32 and the numerical display long hand 33 so as to indicate the specified distance (step S24).

  The direction specifying unit 65 uses the magnetic sensor 3 to specify the magnetic north at the current position (step S25). The display control unit 61 converts the azimuth angle ψ of the specified destination Dst into the azimuth angle ψ of the destination Dst in the local coordinate system of the electronic timepiece W using the specified magnetic north, and converts it according to the direction of the small second hand 42. The small second hand 42 is controlled so as to indicate the azimuth angle ψ of the subsequent destination Dst (step S26). In addition, the display control unit 61 controls the pointer 13 based on the magnetic north so as to indicate true north by the direction of the pointer 13 (step S27). After the process of step S27 ends, the control unit 6 ends the series of processes.

A. 4. Effects of First Embodiment As described above, when the direction of the electronic timepiece W is adjusted such that the destination Dst is positioned in the 12 o'clock direction of the electronic timepiece W, the control unit 6 uses the magnetic sensor 3. The azimuth angle ψ of the destination Dst is specified based on the measured magnetic north direction and the 12 o'clock direction. Then, the control unit 6 specifies the coordinates of the destination Dst based on the distance from the current position to the destination Dst, the azimuth angle 目的 of the destination Dst, and the coordinates of the current position of the electronic timepiece W. Thus, according to the first embodiment, the electronic timepiece W can easily set the coordinates of an arbitrary destination Dst without using any device other than the electronic timepiece W. Specifically, even when there is no map, the electronic timepiece W can set the coordinates of the destination Dst if the user can see the destination Dst from the departure point Dep.

  In the first embodiment, the display control unit 61 specifies the distance from the current position to the destination Dst and the azimuth angle 目的 of the destination Dst based on the coordinates of the destination Dst and the coordinates of the current position. . Then, the display control unit 61 controls the display unit 10 to display the destination Dst and the azimuth angle ψ of the destination Dst from the current position. Thereby, since the electronic timepiece W displays the distance to the destination Dst and the direction of the destination Dst, it is possible to provide information necessary for navigation to the user.

  In the navigation mode, the 10 o'clock side information display unit 40 displays the azimuth angle 方位 of the destination Dst according to the direction of the small second hand 42. As a result, the electronic timepiece W can intuitively provide the user with the orientation of the destination Dst, which is one of the information necessary for navigation.

  In the navigation mode, the 2 o'clock side information display unit 30 displays the distance from the current position to the destination Dst by the number indicated by the numerical display short hand 32 × 1 km + the number indicated by the numerical display long hand 33 × 100 m. This enables the electronic timepiece W to intuitively provide the user with a distance, which is one of the information necessary for navigation.

  Further, the display control unit 61 controls the numerical display short hand 32 and the numerical display long hand 33 so as to indicate the received distance by the scale 31 a indicated by the numerical display short hand 32 and the numerical display long hand 33. Thereby, the user can intuitively determine whether or not the distance from the current position to the target is correctly input by viewing the numerical display short hand 32 and the numerical display long hand 33. .

  In addition, the acquisition unit 64 acquires a value based on the amount by which the crown D has been rotated by the rotation operation of the crown D received by the reception unit 63 as the distance from the current position to the destination Dst. Thereby, the user can input the distance from the current position to the destination Dst by using the adjusting means of a general wristwatch called the crown D.

  As described above, in the first embodiment, the direction from the second band portion F to the first band portion G is an example of the target direction. However, the present invention is not limited to this. it can. In addition to the pointer, the target direction may be defined by directing various scales to the target.

B. Second Embodiment In the first embodiment, the user inputs the distance from the current position to the destination Dst by visual observation. In the second embodiment, in each of the first base point P1 (example of “first position”) (see FIG. 9) and the second base point P2 (example of “second position”) (see FIG. 9), coordinates and By identifying the azimuth angle ψ of the destination Dst, the coordinates of the destination Dst are identified. In the second embodiment, with respect to a triangle having the first base point P1, the second base point P2, and the destination Dst as apexes, the coordinates of the destination Dst are specified by so-called triangulation. Therefore, in order to form a triangle, the first base point P1, the second base point P2, and the destination Dst are not aligned on the same straight line, and the value of the angle of the destination Dst in the triangle is sufficiently large with respect to the measurement error. Is preferred. The second embodiment will be described below. In addition, about the element which an operation | movement and a function are the same as 1st Embodiment in each form and each modification illustrated below, the code | symbol used in 1st Embodiment is diverted and detailed description of each is abbreviate | omitted suitably To do.

B. 1. Outline of Electronic Watch W According to Second Embodiment FIG. 7 is a plan view showing the electronic watch W according to the second embodiment. The elements shown below are assumed to be elements relating to the second embodiment unless otherwise specified for the sake of brevity. In the electronic timepiece W, the character string on the dial 21 is different from the character string on the dial 21 of the first embodiment. Specifically, since the dial 21 in the second embodiment sets the destination Dst instead of the character string 21b, a character string 21b1 representing a first base point registration mode in which the coordinates of the first base point P1 are registered. D1 "and the character string 21b2" D2 "representing the second base point registration mode for registering the coordinates of the second base point P2 in order to set the destination Dst.

  When the operation button C is pressed several times by the user of the electronic timepiece W at the first base point P1, for example, the departure point Dep, and the mode pointer 22 indicates the character string 21b1, the electronic timepiece W changes the operation mode to the first mode. Set to 1 base point registration mode. In addition, the operation pointer C is pressed several times by the user of the electronic timepiece W at a position where the user can see the destination Dst a little closer to the destination Dst from the second base point P2, for example, the departure point Dep. When 22 indicates the character string 21b2, the electronic timepiece W sets the operation mode to the second reference point registration mode.

B. 2. Configuration of Control Unit 6 FIG. 8 shows a configuration diagram of the control unit 6. The control unit 6 reads and executes the program stored in the storage unit 4 to display a display control unit 61, a current position specifying unit 62, an azimuth specifying unit 65, a coordinate specifying unit (target position specifying unit) 66, and the like. To achieve.

The coordinate specifying unit 66 includes coordinates of the first base point P1 (an example of “first coordinate (first position)”), an azimuth angle ψ1 of the destination Dst (an example of “first azimuth”) (see FIG. 9), Based on the coordinates of the two base points P2 (example of “second coordinates (first position)”) and the azimuth angle ψ2 of the destination Dst (an example of “second azimuth”) (see FIG. 9), Identify the coordinates.
The current position specifying unit 62 specifies the coordinates of the first base point P1 when the electronic timepiece W is at the first base point P1. The current position specifying unit 62 specifies the coordinates of the second base point P2 when the electronic timepiece W is at the second base point P2.
The azimuth specifying unit 65 specifies the azimuth angle ψ1 of the destination Dst when the electronic timepiece W is at the first base point P1. Further, the azimuth specifying unit 65 specifies the azimuth angle ψ2 of the destination Dst when the electronic timepiece W is at the second base point P2. A specific example of the coordinates of the destination Dst will be described with reference to FIG.

  FIG. 9 shows an example of specifying the coordinates of the destination Dst. As shown in FIG. 9, in the first base point registration mode, the current position specifying unit 62 specifies the coordinates of the first base point P1, and the direction specifying unit 65 specifies the azimuth angle ψ1 of the destination Dst. In the second base point registration mode, the current position specifying unit 62 specifies the coordinates of the second base point P2, and the direction specifying unit 65 specifies the azimuth angle ψ2 of the destination Dst.

  As described above, since the coordinates of the first base point P1, the azimuth angle ψ1, the coordinates of the second base point P2, and the azimuth angle ψ2 are obtained, the coordinate specifying unit 66 determines the destination Dst based on the obtained information. Specify coordinates. As a method of specifying the coordinates of the destination Dst from the obtained information, for example, there are methods shown below.

  In the first method, the coordinate specifying unit 66 specifies the length d of a line segment extending vertically toward a line segment (hereinafter referred to as “base line”) connecting the first base point P1 to the second base point P2. By doing this, the coordinates of the destination Dst are identified. The length L of the base line is represented by the following equation (1) using the length d.

  L = d / tan α + d / tan β (1)

  The angle α is expressed by the following equation (2).

  α = ψ12−ψ1 (2)

  The angle ψ 12 is an angle between the magnetic north direction and the direction from the first base point P1 to the second base point P2. The angle β is expressed by the following equation (3).

  β = ψ21−ψ2 (3)

  The angle ψ 21 is an angle between the magnetic north direction and the direction from the second base point P 2 to the first base point P 1. Equation (1) is modified to obtain the following equation (4).

  d = L / (1 / tan α + 1 / tan B) (4)

  L can be specified by the coordinates of the first base point P1 and the coordinates of the second base point P2. The angle α can be specified by the azimuth angle ψ1 and the direction from the first base point P1 toward the second base point P2 by the equation (2). The angle β can be specified by the azimuth angle ψ2 and the direction from the second base point P2 toward the first base point P1 by the equation (3). The direction from the first base point P1 to the second base point P2 and the direction from the second base point P2 to the first base point P1 can be specified by the coordinates of the first base point P1 and the coordinates of the second base point P2. As described above, the azimuth specifying unit 65 can specify the length d from the coordinates of the first base point P1, the azimuth angle ψ1, the coordinates of the second base point P2, and the azimuth angle ψ2. If the length d can be specified, the azimuth angle ψ1 and the azimuth angle ψ2 have already been measured. Therefore, the coordinate specification unit 66 executes the same method as the specification method with the coordinates of the destination Dst in the first embodiment. The coordinates of the destination Dst can be specified.

  In the second method, the coordinate specifying unit 66 specifies two linear equations in a plane including the first base point P1, the second base point P2, and the destination Dst, and solves the two linear simultaneous equations. Thus, the coordinates of the destination Dst are specified. The first straight line passes the first base point P1 and the destination Dst. The second straight line passes through the second base point P2 and the destination Dst. Here, rather than a plane including the first base point P1, the second base point P2, and the destination Dst, specifying the coordinates of the destination Dst within the curved surface of the sphere or spheroid surface may improve accuracy. Is possible. However, in the second embodiment, it is assumed that the destination Dst can be visually recognized from the first base point P1 and the second base point P2, and the visible distance is extremely short compared to the radius of the earth. Can be approximated. Therefore, even if the coordinates of the destination Dst are specified in the plane including the first base point P1, the second base point P2, and the destination Dst, sufficient accuracy can be obtained.

B. 3. Flowchart of Each Operation Mode Each of the first base registration mode and the second base registration mode will be described using specific flowcharts. In addition, since the flowchart of the navigation mode in 2nd Embodiment is the same as the flowchart of the navigation mode of 1st Embodiment, illustration and description are abbreviate | omitted.

B. 3.1. Flowchart of First Base Point Registration Mode FIG. 10 shows a flowchart of the first base point registration mode. When the operation mode is set to the first base point registration mode, the control unit 6 detects an operation of pressing the operation button B for a predetermined time or more (step S41). When the pressing operation for a predetermined time or more is detected, the display control unit 61 notifies the user of the start of the first reference point registration operation until the pointer 13 turns to the 12 o'clock direction after turning the pointer 13 to the 12 o'clock direction. The pointer 13 is rotated.

  Next, the current position specifying unit 62 acquires the satellite signal from the GPS receiver 2 with the current position as the first base point P1, and specifies the coordinates of the first base point P1 based on the acquired satellite signal (step S42). The current position specifying unit 62 stores the coordinates of the specified first base point P1 in the storage unit 4. If identification of the coordinates of the first base point P1 succeeds, the display control unit 61 directs the pointer 13 in the 12 o'clock direction to notify the user that identification of the coordinates of the first base point P1 succeeded. The pointer 13 is rotated until the pointer 13 turns in the 12 o'clock direction again.

  The control unit 6 accepts a one-step drawer operation of the crown D (step S43). By accepting the one-step pull-out operation of the crown D, measurement of the magnetic north direction by the magnetic sensor 3 is started. The display control unit 61 controls the pointer 13 so that the pointer 13 indicates the true north direction based on the magnetic north direction measured by the magnetic sensor 3.

  The control unit 6 accepts a pushing operation of the crown D (step S44). Assuming that the direction of the electronic timepiece W has been adjusted by accepting the pushing operation of the crown D, the direction specifying unit 65 specifies the direction of the magnetic north measured by the magnetic sensor 3, and the 12 o'clock direction and magnetic north The azimuth angle ψ1 of the destination Dst is specified from the direction of (1) (step S45). The azimuth specifying unit 65 stores the azimuth angle ψ1 of the specified destination Dst in the storage unit 4. After the end of the process of step S45, the control unit 6 ends the series of processes.

B. 3.2. Flowchart of Second Base Point Registration Mode FIG. 11 shows a flowchart of the second base point registration mode. When the operation mode is set to the second base point registration mode, the control unit 6 detects an operation of pressing the operation button B for a predetermined time or more (step S61). When the pressing operation for a predetermined time or more is detected, the display control unit 61 notifies the user of the start of the second reference point registration operation until the pointer 13 turns to the 12 o'clock direction after turning the pointer 13 to the 12 o'clock direction. The pointer 13 is rotated.

  Next, the current position specifying unit 62 acquires the satellite signal from the GPS receiver 2 with the current position as the second base point P2, and specifies the coordinates of the second base point P2 based on the acquired satellite signal (step S62). The current position specifying unit 62 stores the coordinates of the specified second base point P2 in the storage unit 4. If identification of the coordinates of the second base point P2 is successful, the display control unit 61 directs the pointer 13 in the 12 o'clock direction to notify the user that identification of the coordinates of the second base point P2 is successful. The pointer 13 is rotated until the pointer 13 turns in the 12 o'clock direction again.

  The control unit 6 receives the one-step pulling operation of the crown D (step S63). By accepting the one-step pull-out operation of the crown D, measurement of the magnetic north direction by the magnetic sensor 3 is started. The display control unit 61 controls the pointer 13 so that the pointer 13 indicates the true north direction based on the magnetic north direction measured by the magnetic sensor 3.

  The control unit 6 receives the pushing operation of the crown D (step S64). Assuming that the direction of the electronic timepiece W has been adjusted by accepting the pushing operation of the crown D, the direction specifying unit 65 specifies the direction of the magnetic north measured by the magnetic sensor 3, and the 12 o'clock direction and magnetic north The azimuth angle ψ2 of the destination Dst is specified from the direction of (step S65).

  After specifying the azimuth angle ψ2 of the destination Dst, the coordinate specifying unit 66 stores the coordinates of the first base point P1 stored in the storage unit 4, the azimuth angle ψ1 of the destination Dst, the coordinates of the second base point P2, and the destination Dst. The coordinates of the destination Dst are specified based on the azimuth angle ψ2 of (step S66). The control unit 6 stores the coordinates of the specified destination Dst in the storage unit 4 (step S67). After completion of the process of step S67, the control unit 6 ends the series of processes.

B. 4. Effects of Second Embodiment As described above, the coordinate specifying unit 66 determines the coordinates of the destination Dst based on the coordinates of the first base point P1, the azimuth angle ψ1, the coordinates of the second base point P2, and the azimuth angle ψ2. Identify. Thereby, the electronic timepiece W can easily set the coordinates of an arbitrary destination Dst without using a device other than the electronic timepiece W. Further, when comparing the second embodiment and the first embodiment, in the first embodiment, the user needs to input the distance from the current position of the electronic timepiece W to the destination Dst by eye measurement. In the embodiment, since triangulation is used, it is not necessary to visually measure the distance from the current position of the electronic timepiece W to the destination Dst, and the coordinates of the destination Dst are set more accurately as compared with the first embodiment. It becomes possible. On the other hand, in the first embodiment, since the azimuth angle ψ is specified only once, the coordinates of the destination Dst can be set more easily than in the second embodiment.

C. Modifications The above embodiments can be variously modified. The aspect of a specific deformation | transformation is illustrated below. Two or more aspects arbitrarily selected from the following exemplifications may be combined as appropriate within the range not mutually contradictory. In addition, about the element in which an effect | action and a function are equivalent to embodiment in the modification illustrated below, the detailed description of each is abbreviate | omitted suitably using the code | symbol referred by the above description.

C. 1. First Modification In the first embodiment and the second embodiment, the coordinate specifying unit 66 specifies the coordinates of the destination Dst. In the first modification, an altitude difference from the current position to the destination Dst is further specified.

  12 and 13 show plan views showing the electronic timepiece W in the first modified example. The electronic timepiece W according to the first modification does not have the 2 o'clock side information display unit 30. The operation mode which the electronic timepiece W has is the same as the operation mode which the electronic timepiece W in the first embodiment has. About the element shown below, it is assumed that it is an element regarding a 1st modification, unless there is particular mention for omission of explanation.

  The operation mode of the electronic timepiece W shown in FIG. 12 is a destination setting mode. The operation mode of the electronic timepiece W shown in FIG. 13 is a navigation mode.

  The 6 o'clock side information display unit 20 includes an LCD (Liquid Crystal Display) 23. The LCD 23 displays an image showing a character string indicating the current operation mode and an image showing a character string regarding the current operation mode.

Specifically, the LCD 23 shown in FIG. 12 displays an image 23ad, an image 23bd, and an image 23c1. The image 23ad shows a character string “MODE” indicating the operation mode and a character string “DEST” in which the current operation mode indicates the destination setting mode. The image 23bd shows a character string “DIST” indicating the distance and a distance “3.8 km” from the current position to the destination Dst as a character string related to the destination setting mode. The image 23cd shows “ΔALT” indicating the altitude difference ΔALT and an altitude difference “1234m” from the current position to the destination Dst as a character string related to the destination setting mode.
The LCD 23 shown in FIG. 13 displays an image 23an, an image 23bn, and an image 23cn. The image 23an indicates a character string "MODE" indicating an operation mode and a character string "NAVI" indicating the navigation mode in the current operation mode. The image 23bn shows a character string “DIST” indicating the distance and a distance “2.2 km” from the current position to the destination Dst as a character string related to the navigation mode. The image 23cn shows a character string “ΔALT” indicating the altitude difference ΔALT and an altitude difference “999m” from the current position to the destination Dst as a character string related to the navigation mode. Thus, in the first modified example, the distance from the current position to the destination Dst and the altitude difference ΔALT from the current position to the destination Dst are displayed in digital form.

  FIG. 14 shows a configuration diagram of the electronic timepiece W. In FIG. 14, the same components as those shown in FIGS. 12 and 13 are denoted by the same reference numerals.

  The electronic timepiece W includes an LCD 23 and an LCD driver 501 as a configuration related to the 6 o'clock side information display unit 20. The LCD driver 501 drives the LCD 23.

  The electronic timepiece W further includes a three-axis magnetic sensor 7, a three-axis acceleration sensor 8, and an atmospheric pressure sensor 9.

  The triaxial magnetic sensor 7 measures the geomagnetism in each of the three axial directions, that is, the x axis direction, the y axis direction, and the z axis direction in the local coordinate system of the electronic timepiece W. The orientation of magnetic north in the local coordinate system of the electronic timepiece W can be specified by the geomagnetism in each of the x-axis, y-axis and z-axis directions measured by the three-axis magnetic sensor 7. The three-axis acceleration sensor 8 measures acceleration in each of three axial directions in the x-, y-, and z-axis directions in the local coordinate system of the electronic timepiece W. When the electronic timepiece W is stationary or the electronic timepiece W is moving at a constant linear velocity, the electronic timepiece is determined by the acceleration in the x-axis direction, y-axis direction, and z-axis direction measured by the triaxial acceleration sensor 8. It is possible to specify the gravity direction in W's local coordinate system. The barometric pressure sensor 9 measures the barometric pressure around the electronic timepiece W.

  FIG. 15 shows a configuration diagram of the control unit 6. The control unit 6 reads and executes the program stored in the storage unit 4 to thereby display the display control unit 61, the current position specifying unit 62, the receiving unit 63, the acquiring unit 64, the azimuth specifying unit 65, the coordinates, A specifying unit 66, an inclination specifying unit 67, an altitude difference specifying unit 68, and an altitude specifying unit 69 are realized. Hereinafter, the configuration of the control unit 6 will be described for each of the destination setting mode and the navigation mode.

C. 1.1. Configuration of Control Unit 6 in Destination Setting Mode In the destination setting mode, the tilt specifying unit 67 is configured to perform triaxial acceleration when the tilt of the electronic clock W with respect to the horizontal plane is adjusted so that the target is positioned in the target direction. Based on the acceleration measured by the sensor 8, an inclination angle θ (an example of “inclination”) (see FIG. 16) of the electronic timepiece W with respect to the horizontal plane is specified. Hereinafter, the inclination angle with respect to the horizontal plane is simply referred to as “inclination angle”. As a method for specifying the tilt angle θ, the direction of acceleration measured by the triaxial acceleration sensor 8 indicates the direction of gravity. When the tilt angle θ = 0 degrees, that is, when the electronic timepiece W is not inclined with respect to the horizontal plane, the gravity direction in the local coordinate system of the electronic timepiece W is the negative z-axis direction. Therefore, the inclination angle θ can be specified by the angle between the gravity direction measured by the triaxial acceleration sensor 8 and the z-axis negative direction. The inclination specifying unit 67 outputs the specified inclination angle θ to the altitude difference specifying unit 68. Even in the case of a uniaxial acceleration sensor, if the inclination angle θ of the detection axis with respect to the horizontal plane is 0 degree, the gravitational acceleration is not detected, and if the inclination angle θ is ± 90 degrees, the gravitational acceleration becomes ± 1 G. It is possible to calculate the inclination angle θ. Even when the electronic timepiece W is tilted in an arbitrary direction, the tilt angle θ can be measured by arranging a biaxial acceleration sensor having a detection axis parallel to the inside of the dial face.

  The altitude difference specifying unit 68 specifies the altitude difference ΔALT (see FIG. 16) from the current position to the destination Dst based on the inclination angle θ specified by the inclination specifying unit 67 and the distance acquired by the acquiring unit 64. .

  FIG. 16 shows a specific example of the altitude difference ΔALT from the current position to the destination Dst. FIG. 16 shows the relationship between the electronic timepiece W and the destination Dst in the global coordinate system.

  When the user finishes adjusting the tilt of the electronic timepiece W, the user presses the operation button B. When detecting the pressing operation of the operation button B, the inclination specifying unit 67 determines that the inclination of the electronic timepiece W is adjusted, and specifies the inclination angle θ of the electronic timepiece W. The altitude difference specifying unit 68 specifies the altitude difference ΔALT according to the following equation (5).

  ΔALT = L × sin θ (5)

  L is the distance acquired by the acquisition unit 64.

It returns to the explanation of FIG.
The altitude difference specifying unit 68 outputs the specified altitude difference ΔALT to the display control unit 61 and the altitude specifying unit 69. The display control unit 61 controls the LCD 23 to display an image indicating the altitude difference ΔALT.

  The altitude specifying unit 69 acquires the atmospheric pressure measured by the atmospheric pressure sensor 9 at the first measurement position where the triaxial acceleration sensor 8 measures acceleration, for example, at the departure point Dep. Next, the altitude specifying unit 69 specifies the altitude of the destination Dst based on the acquired atmospheric pressure and the altitude difference ΔALT specified by the altitude difference specifying unit 68. Here, the altitude is the height from the sea level. If the position is lower than the sea level, the altitude is a negative value. As a specific method of specifying the altitude, the altitude identifying unit 69 identifies the altitude of the position at which the atmospheric pressure is acquired from the acquired atmospheric pressure. For example, the altitude identifying unit 69 identifies the altitude from the acquired pressure according to the following equation (6).

  ALT = 153.8 × (t0 + 273.2) × (1− (acquired atmospheric pressure / P0) ^ 0.1902) + manual offset value (6)

  t0 is a reference temperature, which is 15 degrees. P0 is a standard pressure and is 1013.25 hPa. ALT indicates altitude. The manual offset value is a value that can be set by the user. The reason why the manual offset value is provided is that the accuracy of the calculated altitude may be deteriorated depending on the season and the climate only with the first term on the right side of the equation (6). Therefore, before setting the coordinates of the destination Dst, the electronic timepiece W calculates the altitude at a manual offset value of equation (6) as 0 at a position where a specific altitude is known. Thereafter, the user sets a value obtained by subtracting the calculated altitude from the specific altitude as a manual offset value. This enables the electronic timepiece W to obtain a more accurate altitude than when the manual offset value is zero.

  The altitude specifying unit 69 specifies a value obtained by adding the altitude difference ΔALT to the altitude specified from the acquired atmospheric pressure as the altitude of the destination Dst.

C. 1.2. Configuration of Control Unit 6 in Navigation Mode In navigation mode, the altitude difference specifying unit 68 is configured to detect an altitude difference ΔALT from a second measurement position that is slightly closer to the destination Dst to a position different from the first measurement position, for example, the destination Dst. Identify For example, there are the following two methods for specifying the altitude difference ΔALT.
In the first specifying method, the altitude difference specifying unit 68 determines the destination from the second measurement position based on the second atmospheric pressure measured by the atmospheric pressure sensor 9 at the second measurement position and the altitude specified by the altitude specifying unit 69. The altitude difference ΔALT up to Dst is specified. Specifically, the altitude difference specifying unit 68 obtains a value obtained by subtracting the altitude obtained by substituting the second atmospheric pressure into the formula (6) from the altitude specified by the altitude specifying unit 69 from the second measurement position. The altitude difference ΔALT to the destination Dst is specified.
In the second identification method, the height difference identification unit 68 determines the first air pressure measured by the air pressure sensor 9 at the first measurement position, the second air pressure measured by the air pressure sensor 9 at the second measurement position, and the inclination angle θ. The altitude difference ΔALT from the second measurement position to the destination Dst is specified based on the specified altitude difference ΔALT. Specifically, the altitude difference identifying unit 68 adds the altitude difference ΔALT identified using the inclination angle θ to the altitude obtained by substituting the first atmospheric pressure into the equation (6), and the altitude of the destination Dst Get. Then, the altitude difference specifying unit 68 obtains a value obtained by subtracting the altitude obtained by substituting the second atmospheric pressure into the formula (6) from the altitude of the obtained destination Dst, from the second measurement position. It is specified as an altitude difference ΔALT up to.
The altitude difference specifying unit 68 outputs the specified altitude difference ΔALT to the display control unit 61. The display control unit 61 controls the LCD 23 to display an image indicating the altitude difference ΔALT.

  Each of the destination setting mode and the navigation mode will be described using specific flowcharts.

C. 1.3. Flowchart of Destination Setting Mode FIG. 17 shows a flowchart of the destination setting mode. When the operation mode is set to the destination setting mode, the display control unit 61 controls the LCD 23 to display the image 23a1, the image indicating “0 km” as the distance from the current position to the destination Dst, and the current position to the destination. An image indicating an altitude difference “0 m” up to Dst is displayed on the LCD 23. When the operation mode is set to the destination setting mode, the control unit 6 detects an operation of pressing the operation button B for a predetermined time or more (step S81). When a pressing operation for a predetermined time or more is detected, the display control unit 61 controls the LCD 23 to blink the area of the character string “DEST” of the image 23 ad in order to notify the user of the start of the destination setting operation.

  Next, the current position specifying unit 62 acquires a satellite signal from the GPS receiver 2, and specifies the coordinates of the current position based on the acquired satellite signal (step S82). The current position specifying unit 62 stores the coordinates of the specified current position in the storage unit 4. At the same time as step S82, the altitude identifying unit 69 acquires the atmospheric pressure at the current position from the atmospheric pressure sensor 9 (step S83). The altitude identifying unit 69 stores the acquired air pressure in the storage unit 4. When the coordinates of the current position and the pressure of the current position are successfully identified, the display control unit 61 controls the LCD 23 to blink the image indicating the character string “0 km” in order to prompt the user to input the distance. Let

  The control unit 6 accepts a one-step drawer operation of the crown D (step S84). By accepting the one-step pull-out operation of the crown D, acceptance of the rotation operation of the crown D for accepting the distance from the current position to the destination Dst and measurement of the magnetic north direction by the magnetic sensor 3 are started. Preferably, by the stage of step S84, the user has an eye on the distance from the current position to the destination Dst. In addition, the display control unit 61 controls the pointer 13 so that the pointer 13 indicates true north based on the direction of magnetic north measured by the magnetic sensor 3.

  The accepting unit 63 accepts a rotation operation of the crown D (step S85). The display control unit 61 controls the LCD 23 to display an image indicating the distance corresponding to the amount of rotation of the crown D as the distance from the current position to the destination Dst. The user adjusts the direction and tilt of the electronic timepiece W so that the destination Dst is located in the 12 o'clock direction of the electronic timepiece W. When the user finishes adjusting the direction of the electronic timepiece W and rotates the crown D according to the distance from the current position to the destination Dst, the user presses the operation button B.

  Control unit 6 receives a pressing operation of operation button B (step S86). When the pressing operation of the operation button B is received, the acquisition unit 64 calculates a value based on the amount of rotation of the crown D from the time when the one-step drawer operation of the crown D is received until the time when the operation button B is pressed from the current position. The distance to the destination Dst is acquired (step S87). At the same time as step S87, the orientation specifying unit 65 considers that the orientation of the electronic timepiece W is adjusted, acquires the orientation of magnetic north measured by the magnetic sensor 3, and based on the orientation of magnetic north and the 12 o'clock direction. The azimuth angle 方位 of the destination Dst is specified (step S88). Further, the inclination specifying unit 67 specifies that the inclination of the electronic timepiece W is adjusted, and specifies the inclination angle θ of the electronic timepiece W (step S89).

  The coordinate specifying unit 66 is based on the distance obtained by the obtaining unit 64, the azimuth angle ψ of the destination Dst specified by the direction specifying unit 65, and the coordinates of the current position of the electronic timepiece W specified by the current position specifying unit 62. The coordinates of the destination Dst are specified (step S90). At the same time as step S90, the height difference identification unit 68 specifies the height difference ΔALT from the current position to the destination Dst based on the distance acquired by the acquisition unit 64 and the tilt angle θ of the electronic timepiece W (step S91). The altitude specifying unit 69 specifies the altitude of the destination Dst based on the altitude stored in the storage unit 4 and the altitude difference ΔALT (step S92). The display control unit 61 controls the LCD 23 to display an image indicating “3.8 km” as a distance from the current position to the destination Dst and an image indicating an altitude difference “1234 m” from the current position to the destination Dst. It is displayed on the LCD 23.

  The control unit 6 accepts an operation for pushing the crown D (step S93). When accepting the pushing operation of the crown D, the control unit 6 stores the coordinates of the destination Dst and the altitude of the destination Dst in the storage unit 4 (step S94). After completing the process of step S94, the control unit 6 ends the series of processes.

C. 1.4. Flowchart of Navigation Mode FIG. 18 shows a flowchart of the navigation mode. When the operation mode is set to the navigation mode, the display control unit 61 controls the LCD 23 to display the image 23an on the LCD 23. When the operation mode is set to the navigation mode, the control unit 6 detects a pressing operation of the operation button B for a predetermined time or longer (step S101).

  When a pressing operation for a predetermined time or longer is detected, the current position specifying unit 62 acquires a satellite signal from the GPS receiver 2, and specifies the coordinates of the current position based on the acquired satellite signal (step S102). Next, the display control unit 61 determines the distance from the current position to the destination Dst based on the coordinates of the destination Dst stored in the storage unit 4 and the coordinates of the current position specified by the current position specifying unit 62. The azimuth angle ψ of the destination Dst is specified (step S103). The display control unit 61 controls the LCD 23 to display the specified distance (step S104).

  The orientation identifying unit 65 identifies the magnetic north at the current position using the magnetic sensor 3 (step S105). The display control unit 61 converts the azimuth angle ψ of the specified destination Dst into the azimuth angle ψ of the destination Dst in the local coordinate system of the electronic timepiece W using the specified magnetic north, and converts it according to the direction of the small second hand 42. The small second hand 42 is controlled so as to indicate the azimuth angle 後 of the later destination Dst (step S106). Further, the display control unit 61 controls the pointer 13 based on the magnetic north so as to indicate true north by the direction of the pointer 13 (step S107).

  At the same time as step S102, the height difference identification unit 68 acquires the atmospheric pressure at the current position from the atmospheric pressure sensor 9 (step S108). The display control unit 61 specifies the height difference ΔALT from the current position to the destination Dst based on the height of the current position specified from the acquired air pressure and the height of the destination Dst stored in the storage unit 4 (Step S109). The display control unit 61 controls the LCD 23 to display the specified height difference ΔALT (step S110). After completion of the process of step S110, the control unit 6 ends the series of processes.

C. 1.5. Effects of First Modification As described above, the height difference identifying unit 68 determines from the current position to the destination Dst based on the inclination angle θ identified by the inclination identifying unit 67 and the distance acquired by the acquiring unit 64. The height difference ΔALT of As a result, the electronic timepiece W can specify the altitude difference ΔALT from the current position to the arbitrary destination Dst without using any device other than the electronic timepiece W. Therefore, the electronic timepiece W can move from the current position to the arbitrary destination Dst. It becomes possible to facilitate setting of the altitude difference ΔALT. By grasping the altitude difference ΔALT from the current position to the destination Dst, the user can grasp how much it is necessary to climb or descend.

  Further, the height specification unit 69 specifies the height of the destination Dst based on the pressure acquired at the departure place Dep and the height difference ΔALT specified by the height difference specification unit 68. Thus, the electronic timepiece W can easily set the altitude of any destination Dst without using any device other than the electronic timepiece W.

C. 2. Second Modification In each embodiment described above, the electronic timepiece W is an analog timepiece. However, each embodiment described above can be applied even if the electronic timepiece W is a digital timepiece. In the second modification, an example in which the first embodiment is applied when the electronic timepiece W is a digital timepiece will be described. Although the description is omitted, when the electronic timepiece W is a digital timepiece, the second embodiment is applicable not only to the first embodiment.

  19 and 20 are plan views showing an electronic timepiece W in a second modification. The electronic timepiece W concerning the 2nd modification is a digital timepiece. About the element shown below, it is assumed that it is an element regarding a 2nd modification unless there is a statement in particular, for omission of explanation. The operation mode of the electronic timepiece W shown in FIG. 19 is a destination setting mode. The operation mode of the electronic timepiece W shown in FIG. 20 is a navigation mode.

  The display unit 10 is an LCD. In plan view from the z-axis positive direction, the display unit 10 is circular. The display unit 10 includes a time display unit 70 located at the center in the display unit 10, a 6 o'clock side information display unit 20 located at the 6 o'clock side, and a peripheral side information display unit located at the peripheral part in the display unit 10. 80. The shape of the peripheral side information display unit 80 is annular.

  The time display unit 70 displays an image indicating a character string indicating the current time. The 6 o'clock side information display unit 20 displays an image showing a character string indicating the current operation mode and an image showing a character string regarding the current operation mode.

Specifically, the 6 o'clock side information display unit 20 shown in FIG. 19 displays an image 24ad and an image 24bd. The image 24ad shows a character string “DEST” indicating the destination setting mode and a character string “NAV” indicating the navigation mode. Further, the character string “DEST” of the image 24ad is shown in a darker color than the character string “NAV”, so that the image 24ad indicates that the current operation mode is the destination setting mode. The image 24 bd indicates the distance “2.35 km” from the current position to the destination Dst as a character string related to the destination setting mode.
The 6 o'clock side information display unit 20 shown in FIG. 20 displays an image 24 an and an image 24 bn. The image 24an shows a character string “DEST” indicating the destination setting mode and a character string “NAV” indicating the navigation mode. Furthermore, the image 24an indicates that the current operation mode is the navigation mode by indicating the character string "NAV" of the image 24an with a darker color than the character string "NAV". The image 24bn indicates a distance “1.35 km” from the current position to the destination Dst as a character string related to the navigation mode.

  The peripheral side information display unit 80 displays a destination local location image 81a indicating the orientation of the destination Dst and a true north orientation image 81b indicating the true north orientation. The destination local image 81a is formed by one rectangular image, and the true north direction image 81b is formed by three continuous rectangular images. The peripheral side information display unit 80 can display 60 rectangular images. The angle formed by the line segment connecting the center of the first rectangular image and the center of the display unit 10 and the line segment connecting the center of the second rectangular image adjacent to the first rectangular image and the center of the display unit 10 is 6 Degree.

  The destination locality image 81a is displayed in a portion of the peripheral side information display unit 80 that overlaps the line segment L1 from the center Pt of the display unit 10 to the destination Dst. The center Pt of the display unit 10 is the midpoint of the line segment L2 that connects the 12 o'clock position Pos12 and the 6 o'clock position Pos6 of the display unit 10 in the shortest distance. The 12 o'clock position Pos12 is a position in the positive y-axis direction in the peripheral side information display section 80. The 6 o'clock position Pos6 is a position in the negative y-axis direction in the peripheral side information display section 80. The true north orientation image 81b is displayed in a portion of the peripheral side information display unit 80 that overlaps the line segment L3 from the center of the display unit 10 to true north.

  For example, since the position of the destination locality image 81a shown in FIG. 19 is the 12:00 position, the destination locality image 81a shown in FIG. 19 indicates that the destination Dst is located in the 12:00 direction. Similarly, since the true north orientation image 81b shown in FIG. 19 is at the 1 o'clock position, the true north orientation image 81b shown in FIG. 19 indicates that the 1 o'clock direction is the true north orientation.

  Since the position of the destination locality image 81a shown in FIG. 20 is the 10 o'clock position, the destination locality image 81a shown in FIG. 20 indicates that the destination Dst is located in the 10 o'clock direction. Similarly, since the true north orientation image 81b shown in FIG. 20 is at the 12 o'clock position, the true north orientation image 81b shown in FIG. 20 indicates that the 12 o'clock direction is the true north orientation.

  Each of the destination setting mode and the navigation mode will be described using specific flowcharts.

C. 2.1. Flowchart of Destination Setting Mode FIG. 21 shows a flowchart of the destination setting mode. When the operation mode is set to the destination setting mode, the display control unit 61 controls the display unit 10 to display the image 24ad and an image indicating “0 km” as the distance from the current position to the destination Dst at 6 o'clock. It is displayed on the side information display unit 20. When the operation mode is set to the destination setting mode, the control unit 6 detects an operation of pressing the operation button B for a predetermined time or more (step S121). When a pressing operation for a predetermined time or more is detected, the display control unit 61 controls the display unit 10 to blink the area of the character string "DEST" of the image 23ad in order to notify the user of the start of the destination setting operation.

  Next, the current position specifying unit 62 acquires a satellite signal from the GPS receiver 2 and specifies the coordinates of the current position based on the acquired satellite signal (step S122). The current position specifying unit 62 stores the coordinates of the specified current position in the storage unit 4. If the coordinates of the current position are successfully identified, the display control unit 61 controls the display unit 10 to prompt the user to input a distance, and the character string “ The image indicating “0 km” is blinked.

  With the image indicating the character string “0 km” blinking, the control unit 6 receives the pressing operation of the operation button B and the pressing operation of the operation button C (step S123). When the pressing operation of the operation button B is received, the display control unit 61 controls the display unit 10 to increase the distance from the current position to the destination Dst, and displays an image indicating the increased distance at 6 o'clock side information. It is displayed on the display unit 20. When the pressing operation of the operation button C is received, the display control unit 61 controls the display unit 10 to reduce the distance from the current position to the destination Dst, and displays an image indicating the decreased distance at 6 o'clock side information. It is displayed on the display unit 20.

  The control unit 6 receives the simultaneous pressing operation of the operation button B and the operation button C (step S124). When the simultaneous pressing operation is received, the obtaining unit 64 obtains a value based on the number of pressing operations of the operation button B and the number of pressing operations of the operation button C as a distance from the current position to the destination Dst (step S125) . Further, when the simultaneous pressing operation is received, the magnetic sensor 3 measures magnetic north. Then, the display control unit 61 controls the display unit 10 to display the target locality position image 81 a at the 12 o'clock position in the peripheral side information display unit 80, and the true north azimuth image 81 b as the peripheral side information display unit 80. Displayed at the position of true north based on magnetic north within. When the user completes the adjustment of the direction of the electronic clock W, the user presses the operation button B.

  Control unit 6 receives a pressing operation of operation button B (step S126). The azimuth specifying unit 65 assumes that the direction of the electronic timepiece W is adjusted, acquires the magnetic north azimuth measured by the magnetic sensor 3, and based on the magnetic north azimuth and the 12 o'clock direction, The azimuth angle 特定 is identified (step S127).

  The coordinate specifying unit 66 is based on the distance acquired by the acquiring unit 64, the azimuth angle ψ of the destination Dst specified by the azimuth specifying unit 65, and the coordinates of the current position of the electronic timepiece W specified by the current position specifying unit 62. The coordinates of the destination Dst are identified (step S128). The control unit 6 stores the coordinates of the specified destination Dst in the storage unit 4 (step S129). After completion of the process of step S129, the control unit 6 ends the series of processes.

C. 2.2. Flowchart of Navigation Mode FIG. 22 shows a flowchart of the navigation mode. When the operation mode is set to the navigation mode, the display control unit 61 controls the display unit 10 to display the image 24 an on the 6 o'clock side information display unit 20. When the operation mode is set to the navigation mode, the control unit 6 detects an operation of pressing the operation button B for a predetermined time or more (step S141). When a pressing operation for a predetermined time or more is detected, the current position specifying unit 62 acquires satellite signals from the GPS receiver 2 and specifies coordinates of the current position based on the acquired satellite signals (step S142).

  The display control unit 61 determines the distance from the current position to the destination Dst and the destination Dst based on the coordinates of the destination Dst stored in the storage unit 4 and the coordinates of the current position specified by the current position specifying unit 62. The azimuth angle of is identified (step S143). The display control unit 61 controls the display unit 10 such that the specified distance is indicated by the 6 o'clock side information display unit 20 (step S144).

  The orientation identifying unit 65 identifies the magnetic north at the current position using the magnetic sensor 3 (step S145). The display control unit 61 converts the azimuth angle ψ of the specified destination Dst into the azimuth angle ψ of the destination Dst in the local coordinate system of the electronic timepiece W using the specified magnetic north, and depends on the position of the destination local position image 81a. The display unit 10 is controlled to indicate the azimuth angle ψ of the converted destination Dst (step S146). Further, the display control unit 61 controls the display unit 10 to indicate true north based on the magnetic north based on the position of the true north orientation image 81b (step S147). After completion of the process of step S147, the control unit 6 ends the series of processes.

C. 2.3. Effects of the Second Modification As described above, the destination locality image 81a is displayed in a portion of the peripheral side information display unit 80 that overlaps the line segment L1 from the center Pt of the display unit 10 to the destination Dst. As a result, the destination locality image 81a is located in the direction of the destination Dst in the display unit 10, so the user can intuitively provide the user with the orientation of the destination Dst, which is one of the information necessary for navigation. Becomes possible.

C. 3. Third Modification In each form described above, the coordinate specifying unit 66 specifies the coordinates of the destination Dst. However, the electronic timepiece W may specify only the altitude difference ΔALT of the destination Dst from the current position without specifying the coordinates of the destination Dst. In the third modification, an example will be described in which the electronic watch W specifies only the altitude difference ΔALT of the destination Dst from the current position without specifying the coordinates of the destination Dst. The method for specifying the altitude difference ΔALT from the current position to the destination Dst in the third modified example may be the same as in the first modified example, and thus the description thereof is omitted. However, in the first modification, the specified altitude difference ΔALT is displayed in a digital manner, but in the third modification, the specified altitude difference ΔALT is displayed in an analog manner.

C. 3.1. Outline of Electronic Timepiece W in Third Modification FIG. 23 is a plan view showing an electronic timepiece W in the third modification. About the element shown below, it is assumed that it is an element regarding a 3rd modification, unless there is particular mention for omission of explanation. The electronic clock W has, as operation modes, an altitude display mode indicating the altitude of the current position, an altitude difference display mode displaying the altitude difference ΔALT from the current position to the destination Dst, and a destination for setting the altitude of the destination Dst The altitude setting mode, the time display mode, and the atmospheric pressure display mode indicating the atmospheric pressure at the current position are provided. In the dial 21, a character string 21 f “ALT” representing an altitude display mode, a character string 21 g “ΔALT” representing an altitude difference display mode, a character string 21 h “DEST” representing a destination altitude setting mode, and a time display A character string 21c “TIME” representing a mode and a character string 21i “BARO” representing an atmospheric pressure display mode are described.

  The 6 o'clock side information display unit 20 indicates that the operation mode is the altitude display mode by the mode pointer 22 pointing the character string 21 f. Further, the 6 o'clock side information display unit 20 displays that the operation mode is the altitude difference display mode by the mode pointer 22 pointing the character string 21g. In addition, the 6 o'clock side information display unit 20 displays that the operation mode is the destination altitude setting mode when the mode pointer 22 indicates the character string 21h. Further, the 6 o'clock side information display unit 20 displays that the operation mode is the time display mode by the mode pointer 22 pointing the character string 21c. Further, the 6 o'clock side information display unit 20 indicates that the operation mode is the barometric pressure display mode by the mode pointer 22 pointing the character string 21i.

C. 3.1.1. Overview of Altitude Display Mode In the altitude display mode, the electronic clock W can display the altitude of the current position. When the operation button C is pressed several times by the user and the mode pointer 22 indicates the character string 21f, the electronic timepiece W sets the operation mode to the altitude display mode.

In the altitude display mode, the pointer 13 indicates the scale 14b formed on the dial ring 14, the numerical display short hand 32 and the numerical display long hand 33 indicate the scale 31a, and the small second hand 42 indicates the scale 41a. The scale 14b is “0”, “10”, “20”, “30”, “40”, and “50” formed outside the scale 14a. The scale 41 a is “0”, “15”, “30”, and “45” indicating “second”, and “+” and “−”. In the altitude display mode, the small second hand 42 indicates “+” or “−”.
The respective values of the scale 14a and the scale 14b are used as the value of the "m" hundredth digit of the altitude and the value of the 1000 digit of the "m" of the altitude. Each numerical value of the scale 31a is used as the value of the tenth digit of the altitude “m” with respect to the numerical display short hand 32, and the digit of the first digit of the altitude “m” with respect to the numerical display long hand 33. Used as a value. Each character of the scale 41a is used as a high and negative sign. Accordingly, in the altitude display mode, when the small second hand 42 indicates “+”, the pointer 13, the numerical display short hand 32, and the numerical display long hand 33 indicate the number indicated by the pointer 13 × 100 m + the numerical display short hand 32. The altitude of the current position is displayed by the number × 10 m + the number indicated by the numerical value display long hand 33 × 1 m. Similarly, when the small second hand 42 indicates “−”, the pointer 13, the numerical display short hand 32, and the numerical display long hand 33 are (−1) × the number indicated by the pointer 13 × 100 m + the numerical display short hand 32 indicates The altitude of the current position is displayed by the number to be × 10 m + the number indicated by the numerical display long hand 33 × 1 m.

  For example, when the altitude is 3776 m, the small second hand 42 indicates “+”, the pointer 13 indicates “37”, the numerical display short hand 32 indicates “7”, and the numerical display long hand 33 indicates , “6” is indicated.

C. 3.1.2. Overview of Altitude Difference Display Mode In the altitude difference display mode, the electronic timepiece W can display the altitude difference ΔALT from the current position to the destination Dst. When the operation button C is pressed several times by the user and the mode pointer 22 indicates the character string 21g, the electronic timepiece W sets the operation mode to the altitude difference display mode.

  In the altitude difference display mode, the pointer 13 indicates the scale 14b formed on the dial ring 14, the numerical display short hand 32 and the numerical display long hand 33 indicate the scale 31a, and the small second hand 42 indicates the scale 41a. The display mode of the height difference ΔALT in the height difference display mode is the same as the display mode of the height in the height display mode.

  For example, if the altitude difference ΔALT is 1234 m and the destination Dst is lower than the current position, the small second hand 42 indicates “−” and the pointer 13 indicates “12”, and the numerical value display short hand 32 Indicates “3”, and the numerical display long hand 33 indicates “4”.

C. 3.1.3. Overview of Destination Altitude Setting Mode In the destination altitude setting mode, the electronic timepiece W can set the altitude of the destination Dst. In the departure point Dep, when the user depresses the operation button C several times and the mode pointer 22 indicates the character string 21 h, the electronic timepiece W sets the operation mode to the destination altitude setting mode.

  When the operation mode is set to the destination altitude setting mode and the operation button B is continuously pressed for a predetermined time or longer, the electronic timepiece W is connected to the triaxial acceleration sensor 8 (an example of “inertia sensor”). Start measurement. Next, the electronic timepiece W specifies the inclination angle θ of the electronic timepiece W when the inclination of the electronic timepiece W is adjusted so that the destination Dst is positioned in the 12 o'clock direction of the electronic timepiece W. The electronic timepiece W receives the distance from the current position of the electronic timepiece W to the destination Dst, and based on the distance from the current position to the destination Dst and the inclination angle θ of the electronic timepiece W, the altitude of the destination Dst. Specify the difference ΔALT. Furthermore, the electronic timepiece W specifies the height of the destination Dst based on the pressure measured by the pressure sensor 9 and the height difference ΔALT.

  FIG. 24 shows a configuration diagram of the electronic timepiece W. The electronic timepiece W does not include the GPS receiver 2 and the magnetic sensor 3 among the configurations of the electronic timepiece W of the first embodiment, but includes the triaxial acceleration sensor 8 and the atmospheric pressure sensor 9. The description of the 3-axis acceleration sensor 8 and the barometric pressure sensor 9 is the same as that of FIG.

C. 3.2. Configuration of Control Unit 6 FIG. 25 shows a configuration diagram of the control unit 6. The control unit 6 reads and executes the program stored in the storage unit 4 to thereby execute the display control unit 61, the reception unit 63, the acquisition unit 64, the tilt identification unit 67, the altitude difference identification unit 68, and the altitude. And the identification unit 69. Since the configuration of the control unit 6 in the destination altitude setting mode is the same as the configuration of the control unit 6 in the destination setting mode in Modification 1, the description thereof is omitted. Since the configuration of the control unit 6 in the altitude difference display mode is the same as the configuration of the control unit 6 in the navigation mode in the first modification except for the display control unit 61, description thereof is omitted.

  In the destination altitude setting mode, the display control unit 61 displays the altitude difference ΔALT identified by the altitude difference identifying unit 68 by controlling the pointer 13, the small second hand 42, the numerical display short hand 32, and the numerical display long hand 33.

  In the altitude display mode, the altitude specifying unit 69 acquires the atmospheric pressure measured by the atmospheric pressure sensor 9. Next, the altitude identifying unit 69 identifies the altitude identified from the acquired air pressure as the altitude of the current position. The altitude identifying unit 69 outputs the altitude of the identified current position to the display control unit 61. The display control unit 61 displays the height of the current position by controlling the pointer 13, the small second hand 42, the numerical value display short hand 32, and the numerical value display long hand 33.

  The destination altitude setting mode will be described using a specific flowchart.

C. 3.3. Destination Altitude Setting Mode Flowchart FIG. 26 shows a flowchart of the destination altitude setting mode. When the operation mode is set to the destination setting mode, the display control unit 61 controls the flowchart of the destination altitude setting mode so that the numerical display short hand 32 and the numerical display long hand 33 indicate “0” on the scale 31a. When the operation mode is set to the destination altitude setting mode, the control unit 6 detects a pressing operation of the operation button B for a predetermined time or more (step S161). When a pressing operation for a predetermined time or more is detected, the display control unit 61 directs the pointer 13 to the direction of 12 o'clock to notify the user of the start of the destination setting operation, and until the pointer 13 turns to the direction of 12 o'clock again Rotate 13

  The control unit 6 accepts a one-step drawer operation of the crown D (step S162). By accepting the one-step pull-out operation of the crown D, acceptance of the rotation operation of the crown D for accepting the distance from the current position to the destination Dst and measurement of the tilt angle θ by the three-axis acceleration sensor 8 are started. . By the stage of step S162, it is preferable that the user looks at the distance from the current position to the destination Dst.

  The accepting unit 63 accepts the rotation operation of the crown D (step S163). The display control unit 61 controls the numerical display short hand 32 and the numerical display long hand 33 so as to indicate the distance according to the rotation operation by the scale 31 a indicated by the numerical display short hand 32 and the numerical display long hand 33. The user adjusts the tilt of the electronic timepiece W so that the destination Dst is positioned in the 12 o'clock direction of the electronic timepiece W. When the user finishes adjusting the tilt of the electronic timepiece W and rotates the crown D in accordance with the distance from the current position to the destination Dst, the user presses the operation button B.

  The control unit 6 receives the pushing operation of the crown D (step S164). Upon receiving the crown D push-in operation, the acquisition unit 64 obtains a value based on the amount of rotation of the crown D from the time point when the crown D single-pull-out operation is accepted until the point when the crown D push-in operation is accepted from the current position. The distance to the destination Dst is acquired (step S165). Further, the inclination specifying unit 67 specifies that the inclination of the electronic timepiece W is adjusted, and specifies the inclination angle θ of the electronic timepiece W (step S166).

  The altitude difference specifying unit 68 specifies the altitude difference ΔALT from the current position to the destination Dst based on the distance acquired by the acquiring unit 64 and the inclination angle θ of the electronic timepiece W (step S167). The altitude specifying unit 69 acquires the atmospheric pressure at the current position from the atmospheric pressure sensor 9 (step S168). The altitude specifying unit 69 specifies the altitude of the destination Dst based on the altitude specified from the acquired atmospheric pressure and the altitude difference ΔALT (step S169). The altitude identifying unit 69 stores the identified altitude of the destination Dst in the storage unit 4 (step S170). After completion of the process of step S170, the control unit 6 ends the series of processes.

C. 3.4. Effects of Third Modification As described above, the altitude difference specifying unit 68 is based on the inclination angle θ specified by the inclination specifying unit 67 and the distance acquired by the acquiring unit 64 from the current position to the destination Dst. The height difference ΔALT of Thereby, the electronic timepiece W can easily set the altitude difference ΔALT from the current position to the arbitrary destination Dst without using any device other than the electronic timepiece W.

  Further, if the electronic timepiece W is stationary or the electronic timepiece W is in constant linear motion, the force applied to the electronic timepiece W is only gravity. By specifying the direction, it is possible to specify the tilt angle θ of the electronic timepiece W, and it becomes possible to set the height difference ΔALT from the current position to any destination Dst.

  In addition, after setting the altitude difference from the first measurement position, for example, the departure point Dep to the destination Dst, the electronic timepiece W does not adjust the inclination of the electronic timepiece W. It becomes possible to display the height difference ΔALT from the current position of the electronic timepiece W to the destination Dst.

  In addition, the user can input the distance from the current position of the electronic timepiece W to the destination Dst by using the adjustment means of a common wristwatch called a crown D.

C. 4. Fourth Modified Example The electronic timepiece W in the fourth modified example has a sighting member in order to facilitate adjustment of the direction and inclination of the electronic timepiece W so that the destination Dst is located in the 12 o'clock direction. In the fourth modified example, an example in which the electronic timepiece W in the first modified example has the aiming member will be described. Although description is omitted, in each of the above-described embodiments other than the first modification, it is possible to have an aiming member.

  The top view which shows the electronic timepiece W in a 4th modification in FIG. 27 is shown. About the element shown below, it is assumed that it is an element regarding a 4th modification, unless there is particular mention for omission of explanation. In addition to the elements shown in the first modification, the electronic timepiece W includes a first aiming member H1 (an example of “first member” in the fourth modification) and a second aiming member H2 (the “first member in the fourth modification”). Example of “two members”. The first aiming member H1 is provided on the 6 o'clock side on the bezel E. The second aiming member H2 is provided on the bezel E at the 12 o'clock side. The first aiming member H1 has a recessed groove h1a along the y-axis direction in plan view from the z-axis positive direction. The concave groove h1a is formed to pass through the center of the first aiming member H1 in a plan view from the z-axis positive direction. The shape of the second aiming member H2 is a tapered shape which is tapered in the z-axis positive direction. It is preferable that there is no difference between the height of the first aiming member H1 in the z-axis direction and the height of the second aiming member H2 in the z-axis direction.

  FIG. 28 shows an example in which the direction and the inclination of the electronic timepiece W are adjusted. FIG. 28 shows an example in which the orientation of the electronic timepiece W is adjusted so that the destination Dst is positioned in the 12 o'clock direction in plan view from the y-axis negative direction. When adjusting the direction of the electronic timepiece W, the user places the tip of the second aiming member H2 in the recessed groove h1a in plan view from the y-axis negative direction, and the destination Dst at the second aiming member H2 Adjust the direction of the electronic watch W so that Such adjustment makes it possible to reliably locate the destination Dst in the 12 o'clock direction, and to obtain an accurate azimuth angle 方位.

  Further, when adjusting the tilt of the electronic timepiece W, the user views the plane in the positive z-axis direction of the first aiming member H1 and the positive z-axis direction of the second aiming member H2 in plan view from the negative y-axis direction. The inclination of the electronic timepiece W is adjusted so that the destination Dst overlaps with the plane S.

  FIG. 29 shows a plan view from the x-axis positive direction when the inclination of the electronic timepiece W is adjusted. FIG. 29 shows a plan view from the x-axis positive direction when the inclination of the electronic timepiece W shown in FIG. 28 is adjusted. The plane D in the z-axis positive direction of the first aiming member H1, the surface in the z-axis positive direction of the second aiming member H2, and the destination Dst are located in the plane S, so that the destination Dst is in the 12 o'clock direction. It is possible to obtain the tilt angle θ with high accuracy and the accurate tilt angle θ.

C. 5. Other Modifications In each embodiment described above, the altitude is specified using the atmospheric pressure measured by the atmospheric pressure sensor 9, but the present invention is not limited to this. For example, the height specification unit 69 in the first modification includes the three-dimensional coordinates of the start position Dep specified by the current position specification unit 62 at the start position Dep at which the three-axis acceleration sensor 8 measures acceleration and the height difference specification unit 68. The altitude of the destination Dst may be identified based on the identified altitude difference ΔALT. The altitude difference identifying unit 68 determines the second measurement position based on the three-dimensional coordinates of the position identified by the current position identifying unit 62 at the second measurement position different from the departure point Dep and the altitude identified by the altitude identifying unit 69. The altitude difference ΔALT from to the destination Dst is specified. In this manner, by specifying the altitude using the three-dimensional coordinates of the departure point Dep specified by the current position specifying unit 62, it is possible to carry out each of the above-described embodiments without the pressure sensor 9. is there.

  In each of the above-described embodiments, the tilt identification unit 67 identifies the tilt angle θ of the electronic timepiece W based on the acceleration measured by the three-axis acceleration sensor 8, but the present invention is not limited thereto. For example, the electronic timepiece W has an inertial sensor that measures the inertial force of the electronic timepiece W, and the inclination specifying unit 67 adjusts the inertial force measured by the inertial sensor when the inclination of the electronic timepiece W with respect to the horizontal plane is adjusted. The tilt angle θ of the electronic timepiece W with respect to the horizontal plane may be specified based on The inertial sensor may have any configuration as long as the inertial force is measured. For example, the inertial sensor includes an acceleration sensor and a gyro sensor. When the inertial sensor is an acceleration sensor, the acceleration sensor measures acceleration based on the inertial force applied to the electronic timepiece W. When the inertial sensor is a gyro sensor, the angular velocity is measured based on Coriolis force (a kind of inertial force) applied to the electronic timepiece W.

  In the first embodiment, the second embodiment, and the first modification, the display control unit 61 indicates the direction of the destination Dst by the direction of the small second hand 42, but the direction of the direction of the destination Dst is Not limited to. For example, an image indicating a character string indicating the direction of the destination Dst may be displayed on the LCD 23 of the first modified example, such as "direction of destination: north-northwest".

  In the first embodiment, the first modified example, the second modified example, and the third modified example, the acquisition unit 64 acquires the distance from the current position to the destination Dst, but the present invention is not limited to this. For example, the electronic timepiece W stores a plurality of distance candidates in advance. Then, the electronic timepiece W displays a plurality of distance candidates on the LCD 23 of the first modified example. The electronic timepiece W may select a distance candidate closest to the distance from the current position to the destination Dst as the distance from the current position to the destination Dst from the plurality of distance candidates by the operation of the user.

  In each of the above embodiments, the user adjusts the direction or inclination of the electronic timepiece W in a target direction from the second band F which is an example of the second member to the first band G which is an example of the first member. However, it is not limited to this. For example, if the first member is any pointer in the display unit 10, the line segment from one end to the other end of the pointer is used as a guide, and the direction of the line segment is adjusted as the target direction. It becomes possible to specify the direction. Similarly, if the first member is a vertically long member, the direction of this line segment is adjusted as the target direction using the line segment from the first surface to the second surface orthogonal to the longitudinal direction of the first member as a guide By doing so, it becomes possible to specify the target orientation. Here, the longer the line segment used as a guide, the more accurately the target orientation can be specified. And in each aspect mentioned above, it is possible to include the length of 1st member itself and the length of 2nd member itself in the line segment from the 2nd member used as a standard to the 1st member. Therefore, in each aspect mentioned above, compared with the case where only the 1st member is used as a standard, it becomes possible to specify a target direction more correctly.

  In each of the above-described embodiments, the numerical indication short hand 32 and the numerical indication long hand 33 are used as an example of the second hand, but the second hand may be one hand or three or more hands.

  In each of the above embodiments, the shape of the display unit 10 is a circle, but is not limited to a circle. For example, the shape of the display unit 10 may be rectangular. In the second modification, when the shape of the display unit 10 is rectangular, the inner periphery and the outer periphery of the peripheral side information display unit 80 are also rectangular.

  The 6 o'clock side information display unit 20 in the first modified example includes the LCD 23, but may include an organic EL (ElectroLuminescence) display instead of the LCD 23. Similarly, the display unit 10 in the second modification is an LCD, but may be an organic EL display.

  In the second modification, since the destination locality image 81a is displayed in the peripheral side information display unit 80 and the peripheral side information display unit 80 is positioned at the peripheral edge portion in the display unit 10, the target locality image 81a is It will be located in the peripheral part in the display part 10. However, the destination locality image 81 a may be displayed in a portion overlapping the line segment L 1 from the center Pt of the display unit 10 to the destination Dst, and may not necessarily be located in the peripheral portion in the display unit 10. If the destination locality image 81a is displayed in a portion overlapping with the line segment L1 from the center Pt of the display unit 10 to the destination Dst, the destination Dst is positioned on the line segment L1, and the user is This is because the direction can be intuitively grasped. However, since the center Pt of the display unit 10 and the line segment L1 are not actually displayed, the user assumes that the center Pt of the display unit 10 is a target Pt on the straight line passing through the target locality image 81a. Know that there is a ground Dst. In Example 2, since the center Pt of the display unit 10 is not displayed, the user cannot specify the true position of the center Pt of the display unit 10. Therefore, the closer the destination local image 81a is to the center Pt of the display unit 10, the more the direction of the straight line passing through the destination local image 81a from the point that the user assumed to be the center Pt of the display unit 10 and the direction of the destination Dst. There is a risk that the error will increase. As described above, the destination locality image 81a is preferably as far as it is from the center Pt of the display unit 10, and is most preferably located at the peripheral portion in the display unit 10.

  In each of the above embodiments, the number of operation buttons included in the electronic timepiece W is not limited to three in each of the above-described embodiments, and may be less than three or more than three. Further, the arrangement of the operation buttons of the electronic timepiece W is not limited to the positions in the above-described embodiments.

  In each of the above embodiments, the current position specifying unit 62 acquires a satellite signal from the GPS receiver 2, but the current position specifying unit 62 performs positioning of a global navigation satellite system (GNSS) other than GPS. Satellite signals may be acquired from positioning satellites other than satellites and GNSS. For example, the current position specifying unit 62 may include WAAS (Wide Area Augmentation System), EGNOS (European Geostationary-Satellite Navigation Overlay Service), QZSS (Quasi Zenith Satellite System), GLONASS (GLObal NAvigation Satellite System), GALILEO, BeiDou (BeiDou Navigation). Satellite signals may be obtained from satellites of one or more of the satellite positioning systems such as the Satellite System).

  In each of the above embodiments, the electronic timepiece W sets the coordinates of the user's destination Dst, but may set coordinates of a position different from the destination Dst. For example, when the user can not visually identify the destination Dst from the departure point Dep, the user may set a target that is a building or a natural object or the like located between the departure point Dep and the destination Dst and visible from the departure point Dep. Then, the user visually measures the distance from the departure point Dep to the target, and adjusts the direction of the electronic timepiece W so that the target is positioned in the 12 o'clock direction. Thereby, the electronic timepiece W can set the coordinates of the target. Moreover, although each form is demonstrated using the local coordinate system of the electronic timepiece W, you may use a different coordinate system.

  The present invention can also be regarded as a computer program configured to cause the electronic timepiece W to function as each part of the electronic timepiece W described above or a computer-readable recording medium on which the computer program is recorded, One or more computers in the display system may be regarded as a computer program configured to function as each unit of the display system described above or a computer-readable recording medium on which the computer program is recorded. The recording medium is, for example, a non-transitory recording medium, and may include any known recording medium such as a semiconductor recording medium and a magnetic recording medium in addition to an optical recording medium such as a CD-ROM. The present invention is also specified as a method for controlling the electronic timepiece W according to each aspect described above.

DESCRIPTION OF SYMBOLS 10 ... display part, 11 ... hour hand, 12 ... minute hand, 13 ... pointer | guide, 14 ... dial ring, 2 ... GPS receiver, 20 ... 6 o'clock side information display part, 3 ... magnetic sensor, 30 ... 2 o'clock side information display part, 32 ... numerical display short hand, 33 ... numerical display long hand, 4 ... storage unit, 40 ... 10 o'clock side information display unit, 42 ... small second hand, 6 ... control unit, 61 ... display control unit, 62 ... current position identification unit, 63 ... reception unit 64 acquisition unit 65 azimuth identification unit 66 coordinate identification unit 67 inclination identification unit 68 altitude difference identification unit 69 altitude identification unit 7 3-axis magnetic sensor 70 time Display unit, 8 ... 3-axis acceleration sensor, 80 ... Peripheral side information display unit, 81a ... Target local position image, 81b ... True north orientation image, 9 ... Barometric pressure sensor, D ... Crown, F ... Second band part, G ... First band part, W: electronic clock.

Claims (5)

An electronic watch,
An acceleration sensor,
A first member;
An inclination specifying unit for specifying an inclination of the electronic timepiece with respect to a horizontal plane perpendicular to the gravitational direction based on the gravitational acceleration measured by the acceleration sensor when the first member is adjusted in a target direction;
An altitude difference specifying unit that specifies an altitude difference from the current position to the target based on the distance from the current position to the target and the inclination specified by the inclination specifying unit;
An electronic watch characterized by including. In claim 1,
Including a second member, the direction from the second member to the first member being the target direction,
An electronic watch characterized by In claim 1 or 2,
Including barometric pressure sensor
The height difference identification unit
The atmospheric pressure measured by the atmospheric pressure sensor at the first measurement position where the acceleration sensor measured the gravitational acceleration, the atmospheric pressure measured by the atmospheric pressure sensor at a second measurement position different from the first measurement position, and the altitude difference To determine an altitude difference from the second measurement position to the target,
An electronic watch characterized by including. In any one of Claim 1 to 3,
With the crown
A reception unit for receiving the rotation operation of the crown;
An acquisition unit that acquires a value based on an amount of rotation of the crown by the rotation operation received by the reception unit as a distance from the current position to the target;
An electronic watch characterized by including. An electronic timepiece control method including an acceleration sensor for measuring acceleration and a first member,
The electronic watch is
When the first member is adjusted in a target direction, the inclination of the electronic timepiece with respect to a horizontal plane perpendicular to the gravitational direction is specified based on the gravitational acceleration measured by the acceleration sensor,
Identifying an altitude difference from the current position to the target based on a distance from the current position to the target and the inclination;
A method for controlling an electronic timepiece.

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