JP2013181857A - Electronic watch, control method of the same, and control program of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic watch, a control method of the electronic watch, and a control program of the electronic watch that can simplify operation.SOLUTION: An electronic watch comprises: a receiving section for receiving a satellite signal from a position information satellite; a timing section 75 for timing internal time; a storage section 71 that associates block position information indicating positions of a plurality of blocks dividing an earth surface and time zones of the plurality of blocks with one another and stores the block position information and the time zones therein; a time zone acquiring section 782 for acquiring the time zone associated with the block containing a current place indicated by position information contained in the satellite signal received by the receiving section from the storage section 71; a local time calculating section, first and second local time calculating sections 783 and 792, for calculating local time of the current place on the basis of the acquired time zone and time information contained in the satellite signal received by the receiving section; and a time correcting section, first and second time correcting sections 784 and 793, for correcting the internal time on the basis of the calculated local time.

Description

  The present invention relates to an electronic timepiece, an electronic timepiece control method, and an electronic timepiece control program. In particular, the present invention receives a satellite signal transmitted from a position information satellite such as a GPS satellite, and based on time information included in the satellite signal. The present invention relates to an electronic timepiece for correcting the internal time, a control method for the electronic timepiece, and a control program for the electronic timepiece.

  In a GPS (Global Positioning System) which is a system for measuring the self position, a GPS satellite orbiting the earth is used. These GPS satellites have an atomic clock and have extremely accurate time information (GPS time, satellite time information). The satellite signal transmitted by such a GPS satellite includes the time information, and an electronic timepiece that acquires time information from the satellite signal and corrects the internal time has been proposed (for example, Patent Document 1). ).

  In the electronic timepiece described in Patent Document 1, when the user selects the nearest city from the current position, the time difference, latitude and longitude of the selected city, and the geodetic system are EEPROM (Electrically Erasable Programmable Read Only Memory). ) Is read and set. The electronic timepiece predicts a GPS satellite located above the current position at the current time based on the time indicated by the system clock, the set latitude and longitude, and the satellite orbit data preset in advance.

  After that, when at least one GPS satellite is captured, the electronic timepiece receives UTC (Universal Time, Coordinated) and orbit data as time information from the GPS satellite, and the UTC and the time difference described above are received. Based on this, the local time (local time) is calculated. The electronic timepiece sequentially captures GPS satellites while appropriately correcting the latitude and longitude based on the received orbit data. When the required number of GPS satellites are acquired, the electronic timepiece displays the latitude and longitude indicating the current position based on the geodetic system data.

JP 11-183594 A

  However, in the electronic timepiece described in Patent Document 1, when the internal time is corrected, the user needs to select the city closest to the current position. For this reason, there exists a problem that operation is troublesome.

  An object of the present invention is to provide an electronic timepiece, an electronic timepiece control method, and an electronic timepiece control program capable of simplifying operations.

  The electronic timepiece of the present invention includes a receiving unit that receives a satellite signal transmitted from a position information satellite, a time measuring unit that measures internal time, block position information that indicates the positions of a plurality of blocks that divide the earth surface, and A storage unit that associates and stores a time zone of each block, and the block that is associated with a block that includes a current location indicated by position information included in the satellite signal received by the reception unit among the plurality of blocks Based on time information included in the satellite signal received by the time zone acquisition unit that acquires the time zone from the storage unit, the acquired time zone, and the reception unit, the local time of the current location is obtained. The local time calculation unit to be calculated, and the internal clock timed by the time counting unit based on the calculated local time A time correction section to correct time, characterized in that it comprises a.

An example of the position information satellite is a GPS satellite.
In addition, the time zone indicates an entire region using a common standard time, and is expressed as “UTC + 9” or “UTC-5”, and indicates a country and region expressed by a time difference from UTC. For example, “UTC + 9” indicates that the standard time adopted in the time zone is 9 hours ahead of UTC. “UTC + 9” includes Japan and the like. “UTC-5” indicates that the standard time adopted in the time zone is delayed by 5 hours with respect to UTC. "UTC-5" includes the eastern part of the United States. Thus, the time difference between the standard time and UTC in the time zone can be acquired from the time zone.

According to the present invention, the storage unit stores block position information indicating the positions of a plurality of blocks that divide the earth surface and the time zone of the block in association with each other. According to this, the time zone of the current location can be acquired from the storage unit by acquiring the position information included in the satellite signal received by the receiving unit. Since the local time can be calculated based on the acquired time zone and the time information included in the received satellite signal, the internal time can be corrected without the user selecting a city closest to the current location. Therefore, the user's operation in correcting the internal time can be simplified.
Note that when the number of blocks increases, detailed classification by the blocks becomes possible, but it is necessary to increase the storage capacity of the storage unit and to increase the processing capacity of the electronic timepiece. Therefore, by adjusting the number of blocks, it is possible to adjust the data amount according to the storage capacity of the storage unit and the processing capability of the electronic timepiece.

  Alternatively, the electronic timepiece of the present invention receives a satellite signal transmitted from a position information satellite, obtains position information and time information included in the satellite signal, and a timekeeping section that measures the internal time, The block position information indicating the positions of a plurality of blocks that divide the earth's surface, a storage unit that associates and stores the time zone of each block, and the satellite signals transmitted from three or more position information satellites A first information acquisition unit that receives the position information and time information included in the satellite signal by being received by the reception unit; and the position information acquired by the first information acquisition unit among the plurality of blocks. The time zone associated with the block including the current location is acquired from the storage unit and the time zone acquisition unit Based on the time zone and the time information acquired by the first information acquisition unit, a first local time calculation unit that calculates a local time, and a local time calculated by the first local time calculation unit Based on the first time correction unit that corrects the internal time and the reception unit that receives the satellite signal transmitted from one position information satellite, and acquires time information included in the satellite signal. Two information acquisition units; a second local time calculation unit that calculates a local time based on the time zone acquired by the time zone acquisition unit and the time information acquired by the second information acquisition unit; A second time correction unit that corrects the internal time based on the local time calculated by the second local time calculation unit. The features.

According to the present invention, the same effects as those of the electronic timepiece described above can be obtained.
When the time zone acquisition unit acquires the current time zone, the local time is calculated based on the time zone and the time information included in the satellite signal from one position information satellite. It is possible. For this reason, when the time zone has already been acquired, the internal time can be corrected by receiving a satellite signal from one position information satellite at the time of time correction. Therefore, each time the internal time is corrected, the time required for correcting the internal time can be shortened and the power consumption of the electronic timepiece can be reduced as compared with the case where satellite signals are received from three or more position information satellites.

In the present invention, it is preferable that one time zone is stored in association with one block position information in the storage unit.
According to the present invention, one time zone is stored in association with block position information indicating the position of one block. According to this, as compared with the case where a plurality of time zones are set for one block position information, the process for acquiring the time zone can be simplified, and an appropriate time zone can be reliably acquired. Therefore, even an electronic timepiece with low processing capability can calculate an appropriate local time and correct it to an accurate internal time.

In the present invention, it is preferable that each of the plurality of blocks is divided for each time zone.
According to the present invention, since one block is an entire area that adopts a common standard time, block position information indicating the position of the block can be associated with a time zone on a one-to-one basis. In addition, since the setting of each block can be easily performed, the configuration of the data stored in the storage unit can be simplified, and the time zone of the current location indicated by the acquired position information can be acquired reliably and appropriately. Therefore, an appropriate local time can be calculated reliably, and can be corrected to an accurate internal time.

Or in this invention, it is preferable that the said some block is divided for every administrative division of a country and an area, respectively.
Here, the time zone adopted at a location is determined in units of the country and region in which the location is included, and is also determined in units of administrative divisions (provinces, provinces and municipalities) of the country and region. Is done. For this reason, the block (block position information) and a time zone can be matched more appropriately by setting the block linked | related with a time zone one-on-one according to the administrative division of each country and each area. . Therefore, an appropriate time zone can be set for each block, and an appropriate local time can be calculated based on the time zone.

Alternatively, in the present invention, it is preferable that each of the plurality of blocks is divided by latitude lines having a predetermined interval and meridians having a predetermined interval.
In this case, for example, each of the areas surrounded by latitude lines every 5 degrees and meridians every 5 degrees can be set as one block.
According to the present invention, each block can be easily set on the earth surface. In addition, since the latitude and longitude of the vertex of the corresponding block can be used as the block position information, the configuration of data stored in the storage unit can be simplified.
Depending on how the blocks are divided, there may be cases where regions of different time zones are included in the region corresponding to one block. In such a case, by comparing the areas of the respective areas, and setting the time zone of the area with the larger area as the time zone of the corresponding block, the rate at which an incorrect time zone is acquired can be reduced.

In the present invention, it is preferable to include a block selection unit that selects at least one block from the plurality of blocks, and a time zone correction unit that corrects a time zone associated with the block selected by the block selection unit. .
Such correction of the time zone may be configured to directly update the time zone stored in the storage unit in association with the selected block, or may be stored as a correction history in another storage unit. Good.
According to the present invention, since the time zone is corrected in units of blocks, the time zone can be easily corrected. In particular, when each block is set according to the administrative district, as mentioned above, the time zone may be determined for each administrative district, so by correcting the time zone in units of blocks, The time zone can be appropriately corrected.

In addition, the electronic timepiece control method of the present invention receives a satellite signal transmitted from a position information satellite and is indicated by position information included in the received satellite signal among a plurality of blocks for dividing the earth surface. The time zone corresponding to the block including the current location is acquired on a one-to-one basis, and based on the acquired time zone and the local time calculated based on the time information included in the received satellite signal It is characterized by correcting the time.
According to the present invention, the same effects as those of the electronic timepiece described above can be obtained.

Alternatively, the electronic timepiece control method of the present invention receives satellite signals transmitted from three or more position information satellites, and includes the positions included in the received satellite signals among a plurality of blocks that divide the earth surface. A time zone corresponding to the block including the current location indicated by the information is acquired on a one-to-one basis, and the local time calculated based on the acquired time zone and the time information included in the received satellite signal A first time correction step of correcting the internal time based on the received time, a satellite signal transmitted from one of the position information satellites is received, and the acquired time zone and received from the one position information satellite And a second time correction step for correcting the internal time based on the local time calculated based on the time information included in the satellite signal. .
According to the present invention, the same effects as those of the above-described electronic timepiece including the first time correction unit and the second time correction unit can be obtained.

The electronic timepiece control program of the present invention is executed by an electronic timepiece that receives a satellite signal transmitted from a position information satellite and corrects the internal time based on the position information and time information included in the satellite signal. The position information included in the received satellite signal among a plurality of blocks that cause the receiving unit to receive the satellite signal and have the time zone acquisition unit classify the earth surface. The time zone corresponding to the block including the current location indicated by 1 is acquired on a one-to-one basis, and the time correction unit is based on the acquired time zone and the time information included in the received satellite signal. The internal time is corrected based on the calculated local time.
According to the present invention, when the electronic timepiece executes the control program, the same effects as those of the electronic timepiece and the electronic timepiece control method described above can be obtained.

Alternatively, the electronic timepiece control program of the present invention is executed by an electronic timepiece that receives a satellite signal transmitted from a position information satellite and corrects the internal time based on position information and time information included in the satellite signal. A control program for an electronic timepiece, wherein a receiving unit receives satellite signals transmitted from three or more position information satellites, and a time zone acquisition unit receives a block among a plurality of blocks that divide the earth surface. The time zone corresponding to the block including the current location indicated by the position information included in the satellite signal is acquired on a one-to-one basis, and the acquired time zone is received by the first time correction unit. A first time correction step of correcting an internal time based on a local time calculated based on the time information included in the satellite signal; and To receive the satellite signal transmitted from one of the position information satellites, and the second time correction unit receives the acquired time zone and the satellite signal received from the one position information satellite. And a second time correction step of correcting the internal time based on the local time calculated based on the time information included in the time.
According to the present invention, when the electronic timepiece executes the control program, the same effects as those of the electronic timepiece and the electronic timepiece control method described above can be obtained.

The schematic diagram which shows the structure and usage condition of the electronic timepiece which concern on 1st Embodiment of this invention. The block diagram which shows the structure of the electronic timepiece in the said 1st Embodiment. The functional block diagram which shows the function of the control means in the said 1st Embodiment. The figure which shows the concept of the block set to the electronic timepiece in the said 1st Embodiment. The flowchart which shows the time correction process in the said 1st Embodiment. The flowchart which shows the 1st time correction process in the said 1st Embodiment. The flowchart which shows the 2nd time correction process in the said 1st Embodiment. The figure which shows the concept of the block set to the electronic timepiece which concerns on 2nd Embodiment of this invention. The figure which shows the concept of the block set to the electronic timepiece which concerns on 3rd Embodiment of this invention.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described based on the drawings.
[Function of electronic clock]
FIG. 1 is a schematic diagram illustrating the configuration and usage of an electronic timepiece 1 according to the present embodiment.
An electronic timepiece (hereinafter sometimes abbreviated as “timepiece”) 1 according to this embodiment is a wristwatch with a GPS time correction function. Specifically, as shown in FIG. 1, the timepiece 1 receives satellite signals (GPS signals) including time information and position information from a plurality of GPS satellites SL orbiting the earth over a predetermined orbit. Based on the time information and position information, the time (internal time) that is measured internally is corrected and the current position is displayed.
The GPS satellite SL is an example of the position information satellite in the present invention, and FIG. 1 shows four GPS satellites SL. However, at present, about 30 GPS satellites SL orbit, and satellite signals from 5 to 11 GPS satellites SL can be received at all times when outdoors.

Such a timepiece 1 includes a display unit 2 and an operation unit 3.
The display means 2 displays various information that the timepiece 1 has. The display unit 2 includes a dial plate 21 and a pointer 22, a step motor (not shown) that drives the pointer 22, and a display 23 that is exposed from an opening formed in a part of the dial plate 21.
The dial 21 and the hands 22 display the internal time, for example. Among these, the pointer 22 is configured to include a second hand, a minute hand, and an hour hand, and each of the hands is driven via a gear by the step motor.
The display 23 is constituted by a liquid crystal panel in the present embodiment, and information indicating the current position calculated based on the position information included in the satellite signal under the control of the control means 7 (display control unit 80) described later. Or a predetermined message is displayed.
The operation means 3 includes a button 31 and a crown 32, and when the button 31 and the crown 32 are operated, an operation signal for executing a predetermined function is output to the control means 7.

[Configuration of electronic clock]
FIG. 2 is a block diagram showing the configuration of the timepiece 1.
The timepiece 1 includes, in addition to the display unit 2 and the operation unit 3 described above, a power generation unit 4, a power source unit 5, a reception unit 6 and a control unit 7 connected to each other via a bus line B as shown in FIG. .
The power generation means 4 includes a solar panel, and outputs power generated when light is incident on the solar panel to the power supply means 5.
The power supply means 5 includes a secondary battery and a power supply control unit. Among these, when the input voltage input from the power generation means 4 is higher than the output voltage of the secondary battery, the power supply control unit supplies the input voltage to each electronic component constituting the timepiece 1 and The secondary battery is charged by supplying the secondary battery. Further, when the input voltage from the power generation means 4 is lower than the output voltage of the secondary battery, the power supply control unit supplies the output voltage to each electronic component.

The receiving means 6 includes an antenna AT provided inside the timepiece 1, and causes the antenna AT to receive a satellite signal under the control of a control means 7 (reception control unit 76) to be described later. And position information and the like are acquired.
In this embodiment, such an antenna AT is configured by a patch antenna that can receive satellite signals from a plurality of GPS satellites SL. However, the present invention is not limited to this, and an antenna having another configuration such as a film antenna may be employed.

[Configuration of control means]
FIG. 3 is a functional block diagram showing functions of the control means 7.
The control means 7 is configured as a circuit board on which circuit elements such as a CPU (Central Processing Unit) and a memory are mounted, and controls the operation of the timepiece 1. As shown in FIG. 3, the control unit 7 includes a first storage unit 71 and a second storage unit 72 configured by the memory, and the CPU executes a program stored in the first storage unit 71. Accordingly, the block selection unit 73, the time zone correction unit 74, the time measurement unit 75, the reception control unit 76, the condition determination unit 77, the first processing unit 78, the second processing unit 79, and the display control unit 80 function.

  The 1st memory | storage part 71 is corresponded to the memory | storage part of this invention, and is comprised by non-volatile memories, such as ROM, in this embodiment. The first storage unit 71 stores programs and data necessary for the operation of the timepiece 1. As such a program, for example, a program (control program) for executing a first time correction process and a second time correction process described later is stored. Moreover, as the data, information (block position information) indicating the positions of a plurality of blocks that divide the earth surface and a time zone corresponding to the blocks are stored in association with each other. As described above, the time zone indicates a region that uses a common standard time, and is indicated by a difference (time difference) between the standard time and UTC (Coordinated Universal Time).

  In the present embodiment, the first storage unit 71 stores information indicating the positions of blocks divided for each time zone as the block position information. That is, in the first storage unit 71, information indicating the position of each time zone area having a different standard time is stored as block position information, and the time zone is stored in association with each block position information. In this way, the block and the time zone have a one-to-one correspondence, and one time zone is stored in association with one block (block position information).

FIG. 4 is a diagram illustrating the concept of blocks set in the electronic timepiece 1.
For example, as shown in FIG. 4, the time zone “UTC-5” includes the eastern parts of the United States and Canada, Cuba and Peru (not shown), and the like. The time zone “UTC-6” includes the central parts of the United States, Canada and Mexico. Further, the time zone “UTC-7” includes the mountains of the United States, Canada and Mexico, and the time zone “UTC-8” includes the west of the United States, Canada and Mexico. The country and the region included in each time zone are set as one block BL, and the first storage unit 71 stores block position information indicating the position of the block BL.

  The block position information is composed of latitude and longitude indicating the positions of a plurality of points set on the boundary line of the corresponding block BL, and information indicating lines (straight lines and curves) connecting the points. The number of these points is appropriately set according to the storage capacity of the first storage unit 71 and the processing capability of the electronic timepiece 1.

  Returning to FIG. 3, the second storage unit 72 includes a rewritable nonvolatile memory such as a flash memory or an EEPROM. The second storage unit 72 stores time zone correction contents for each block by a time zone correction unit 74 described later. In the second storage unit 72, the time zone acquired by the time zone acquiring unit 782 of the first processing unit 78 described later in the first time correction processing SA is stored as the current time zone.

The block selection unit 73 and the time zone correction unit 74 function when correcting the time zone in units of blocks.
Among these, the block selection unit 73 selects a block including the current location from among a plurality of blocks stored in the first storage unit 71 when the time zone is corrected. The block selection unit 73 can also select a block to be corrected based on a signal input to the timepiece 1 from the outside, and selects the block selected by the user's operation on the operation means 3 described above. It is also possible to do.

  The time zone correction unit 74 corrects the time zone corresponding to the block selected by the block selection unit 73 based on the user's operation on the operation means 3 or the above signal. At this time, the time zone correction unit 74 does not directly correct (update) the time zone stored in the first storage unit 71 but stores the corrected time zone in the second storage unit 72 as a new time zone. Then, the information is stored in association with the block position information of the selected block. As described above, the second storage unit 72 stores the correction history of the time zone.

The clock unit 75 counts the internal time based on a reference clock signal that is oscillated by a crystal oscillator (not shown) and divided to 1 Hz.
The reception control unit 76 and the reception unit 6 are controlled so that the reception unit 6 receives a satellite signal, and the control unit 7 outputs a reception signal corresponding to the satellite signal. That is, the reception control unit 76 and the reception unit 6 constitute a reception unit of the present invention.

FIG. 5 is a flowchart showing a time correction process performed by the control means 7.
The condition determination unit 77 determines whether or not a condition for performing time correction processing for receiving a satellite signal from the GPS satellite SL and correcting the internal time is met. Further, when the condition determination unit 77 determines that the condition is met, as shown in FIG. 5, either one of the first time correction process SA and the second time correction process SB is performed. Is determined (step S1).

For example, when the user performs an operation for correcting the internal time on the operation means 3 (forced time correction operation), the condition determination unit 77 determines that the first time correction process SA should be performed. The first time correction process SA is executed by the first processing unit 78.
When the internal time has reached the preset scheduled time and the current time zone is not stored in the second storage unit 72, the condition determination unit 77 causes the first processing unit 78 to correct the first time. When the process SA is performed and the time zone is stored, the second processing unit 79 performs the second time correction process SB.

The first processing unit 78 performs a first time correction process SA. This first time correction processing SA receives satellite signals from three or more GPS satellites, acquires position information and time information of a place (current location) where the clock 1 is located, and a time corresponding to the position information. This is a process for correcting the internal time based on the zone and time information.
The first processing unit 78 includes a first information acquisition unit 781, a time zone acquisition unit 782, a first local time calculation unit 783, and a first time correction unit 784.

[Configuration of first processing unit and first time correction processing]
FIG. 6 is a flowchart showing the first time adjustment process SA.
Hereinafter, each configuration will be described along the process of the first time correction process SA.
In the first time adjustment process SA, as shown in FIG. 6, first, the first information acquisition unit 781 causes the reception control unit 76 and the reception means 6 to receive satellite signals from three or more GPS satellites (steps). SA1). And the 1st information acquisition part 781 extracts the positional information and time information of a present location from the received signal according to the received satellite signal.
Next, the first information acquisition unit 781 determines whether or not the reception of the satellite signal is completed (step SA2). When the first information acquisition unit 781 determines that the reception of the satellite signal has not been completed, such as when the satellite signal cannot be received or when it is determined that the extracted information is not appropriate. The first processing unit 78 ends the first time correction process SA.

On the other hand, when the first information acquisition unit 781 determines that the reception of the satellite signal is completed, the time zone acquisition unit 782 acquires the time zone (step SA3).
Specifically, the time zone acquisition unit 782 selects a block including the current location indicated by the acquired position information from the plurality of block position information stored in the first storage unit 71. Then, the time zone acquisition unit 782 determines whether or not the time zone (corrected time zone) associated with the block position information of the selected block is stored in the second storage unit 72.

At this time, if it is determined that the time zone acquisition unit 782 is not stored in the second storage unit 72 (when it is determined that the time zone of the corresponding block has not been updated), the selected block position information The time zone corresponding to is acquired from the first storage unit 71.
On the other hand, when it is determined that the time zone acquisition unit 782 is stored in the second storage unit 72 (when it is determined that the time zone of the corresponding block has been updated), the time block acquisition unit 782 includes the selected block position information. The corresponding time zone is acquired from the second storage unit 72.
Then, the time zone acquisition unit 782 sets the acquired time zone in the second storage unit 72 as the current time zone.

Thereafter, the first local time calculating unit 783 uses the local time (local time) based on the time information acquired by the first information acquiring unit 781 and the time zone of the current location acquired by the time zone acquiring unit 782. Is calculated (step SA4). Specifically, the first local time calculation unit 783 calculates the local time of the current location by adding or subtracting the difference from the UTC indicated by the time zone to the current time indicated by the acquired time information. . The second local time calculation unit 783 corresponds to the local time calculation unit of the present invention.
Then, the first time correcting unit 784 corrects the internal time measured by the time measuring unit 75 based on the calculated local time (step SA5). The first time correction unit 784 corresponds to the time correction unit of the present invention.
Thus, the first time correction process SA ends.

  Returning to FIG. 5, in the determination process of step S <b> 1, when the condition determination unit 77 determines that the second time correction process SB should be performed, the second processing unit 79 performs the second time correction process SB. To be implemented. As shown in FIG. 3, the second processing unit 79 includes a second information acquisition unit 791, a second local time calculation unit 792, and a second time correction unit 793.

[Configuration of Second Processing Unit and Second Time Correction Processing]
FIG. 7 is a flowchart showing the second time correction process SB.
Hereinafter, each configuration will be described along the process of the second time correction process SB.
In the second time correction process SB, as shown in FIG. 7, first, the second information acquisition unit 791 causes the reception control unit 76 and the reception means 6 to receive a satellite signal from one GPS satellite (step SB1). . And the 2nd information acquisition part 791 extracts time information from the received signal according to the received satellite signal.
Next, the second information acquisition unit 791 determines whether or not the reception of the satellite signal is completed in the same manner as the above-described step SA2 by the first information acquisition unit 781 (step SB2). When the second information acquisition unit 791 determines that the reception of the satellite signal has not been completed, the second processing unit 79 ends the second time correction process SB.

On the other hand, if the second information acquisition unit 791 determines that the reception of the satellite signal has been completed, the second local time calculation unit 792 uses the current time zone set in the second storage unit 72 (that is, Time zone acquired by the time zone acquisition unit 782) (step SB3).
Then, the second local time calculation unit 792 calculates the local time of the current location based on the time zone and the time information acquired by the second information acquisition unit 791 (step SB4).
Thereafter, the second time correction unit 793 corrects the internal time measured by the time measuring unit 75 based on the calculated local time (step SB5).
Thus, the second time correction process SB ends.

The display control unit 80 controls the display unit 2 to display the internal time measured by the time measuring unit 75 on the display unit 2. Therefore, the display control unit 80 displays the corrected internal time in step S2 in the time adjustment process shown in FIG.
In addition, the display control unit 80 displays the position information indicating the current location on the display unit 2 as necessary, or the first time correction process SA or the second time correction process SB without receiving the satellite signal. A message is displayed when is finished.

[Effect of the first embodiment]
According to the timepiece 1 according to the present embodiment described above, the following effects can be obtained.
That is, in the first storage unit 71, block position information indicating the positions of a plurality of blocks that divide the earth surface and the time zones of the blocks are stored in association with each other. According to this, the block including the current location can be specified from the position information and the block position information acquired from the satellite signal, and the time zone stored in association with the block can be acquired. Since the local time can be calculated based on the time zone and the time information acquired from the satellite signal, the internal time can be corrected without the user selecting a city closest to the current location. Therefore, the user operation can be simplified.

  When the time zone acquisition unit 782 acquires and sets the current time zone in the first time correction process SA, the second time correction process SB is executed. In the second time correction process SB, the local time is calculated based on the time zone and the time information included in the satellite signal from one position information satellite, and the internal time is corrected based on the local time. The According to this, when the current time zone is set, reception of satellite signals from three or more position information satellites can be omitted. Therefore, compared to the case where satellite signals are received from three or more GPS satellites SL every time the internal time is corrected, the time required for correcting the internal time can be shortened and the power consumption of the electronic timepiece 1 can be reduced.

  The first storage unit 71 stores one time zone for block position information indicating the position of one block. According to this, an appropriate time zone can be reliably acquired without requiring a time zone selection operation by the user as in the case where a plurality of time zones are set for one block position information. Therefore, even an electronic timepiece with low processing capability can calculate an appropriate local time and correct it to an accurate internal time.

  Each block is set according to the time zone. That is, each block is set so as to include the entire region indicated by one time zone and not include the regions indicated by other time zones. According to this, since the block is the entire region that adopts the common standard time, the block position information of the block and the time zone can be reliably correlated one to one. Moreover, since the setting of a block can be performed easily, the structure of the data memorize | stored in the 1st memory | storage part 71 can be simplified, and the time zone of the present location can be acquired reliably and appropriately. Therefore, an appropriate local time can be calculated reliably, and can be corrected to an accurate internal time.

The time zone correction by the time zone correction unit 74 is performed in units of blocks selected by the block selection unit 73. According to this, it is possible to easily correct the time zone as compared with the case where the user sets the correction range by specifying latitude and longitude and corrects the time zone within the correction range.
The corrected time zone is stored in the second storage unit 72 provided separately from the first storage unit 71 in association with the block position information of the corresponding block. According to this, compared with the case where the storage content of the 1st memory | storage part 71 which memorize | stores the time zone according to all the blocks is updated directly, the time zone after correction | amendment can be hold | maintained easily. Accordingly, the time zone can be corrected more easily, and the data stored in the first storage unit 71 can be prevented from being damaged.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.
The electronic timepiece according to the present embodiment has the same configuration and functions as the electronic timepiece 1 described above, but the point that the plurality of blocks that divide the earth surface are blocks for each administrative division of each country and each region. Different from the electronic timepiece 1. In the following description, parts that are the same as or substantially the same as those already described are assigned the same reference numerals and description thereof is omitted.

FIG. 8 is a diagram showing the concept of blocks set in the electronic timepiece according to the present embodiment.
In the first storage unit 71 of the electronic timepiece according to the present embodiment, block position information indicating the positions of a plurality of blocks that divide the earth surface for each administrative division of each country and each region, and a time zone including the blocks, Are stored in association with each other.
For example, FIG. 8 shows the state of Indiana in the United States, but as shown in FIG. 8, each block BL in the United States is set according to the county, independent city, and the like. Although not shown, each block in the People's Republic of China is set according to the prefecture and the provincial city. Furthermore, each block in Japan is set according to a municipality.

The time zone including the block is stored in the first storage unit 71 in association with the block position information of each block divided in this way. For this reason, one time zone is stored in association with one block.
In addition, the block position information is similar to the above-described block position information. Latitude and longitude indicating the positions of a plurality of points set on the boundary line of the corresponding block, and lines (straight lines and curves) connecting the points. Information. The number of these points is appropriately set according to the storage capacity of the first storage unit 71 and the processing capability of the electronic timepiece.

In such an electronic timepiece according to the present embodiment, the same time correction processing as that of the electronic timepiece 1 described above is performed, and the internal time is corrected. At this time, the time zone acquisition unit 782 selects block position information including the current location indicated by the position information acquired by the first information acquisition unit 781 from the first storage unit 71, and a time corresponding to the block position information. The zone is acquired from the first storage unit 71 or the second storage unit 72, and the time zone of the current location is set in the second storage unit 72.
Further, when the time zone is corrected, the block selected by the block selection unit 73 is a block for each administrative division.

According to the electronic timepiece according to the present embodiment described above, the same effects as the electronic timepiece 1 described above can be obtained, and the following effects can be obtained.
The time zone adopted at a certain place is determined in units of administrative divisions including the place. For this reason, each block which divides the earth surface is set according to the administrative divisions of each country and each region, so that the corresponding block (block position information) and time zone can be associated more accurately. Therefore, an appropriate time zone can be set for each block, and an appropriate local time can be calculated based on the time zone.
In addition, as described above, the time zone is set for each country and region (and also for administrative divisions), and may be changed according to the agreement of the country and region. For this reason, the number of time zones may be increased or decreased in the future. On the other hand, in this embodiment, when the time zone is corrected, the block selection unit 73 selects a block divided for each administrative division, so that the time zone can be corrected appropriately.

[Third Embodiment]
Next, a third embodiment of the present invention will be described.
The electronic timepiece according to the present embodiment has the same configuration and functions as the electronic timepiece 1 described above, but a plurality of blocks that divide the earth's surface are blocks that are divided by latitude lines and meridians set at predetermined intervals. This is different from the electronic timepiece 1 described above. In the following description, parts that are the same as or substantially the same as those already described are assigned the same reference numerals and description thereof is omitted.

  In the first storage unit 71 of the electronic timepiece according to the present embodiment, block position information indicating the positions of a plurality of blocks that divide the earth surface by latitude lines at predetermined intervals and meridians at predetermined intervals, and areas in the blocks are located. The time zone to be stored is stored. That is, one time zone is stored in association with one block. The intervals between these latitude lines and meridians can be appropriately set according to the storage capacity of the first storage unit 71 and the processing capability of the electronic timepiece.

FIG. 9 is a diagram showing the concept of blocks set in the electronic timepiece according to the present embodiment.
For example, FIG. 9 shows a map of the United States of America. As shown in FIG. 9, the plurality of blocks BL in this embodiment are divided into five-degree parallels and five-degree meridians. It is a block to do. Therefore, the first storage unit 71 stores block position information indicating the position of each block BL and a time zone corresponding to each block BL. Such block position information can be represented by the latitude and longitude of the vertex of the corresponding block BL or the angle of the latitude and longitude lines surrounding the block BL.

In addition, when the earth surface is divided by the above-mentioned blocks, there are cases where regions having different time zones are included in one block. In such a case, the areas of the respective areas are compared, and the time zone of the area having the larger area is set as the time zone of the block. Thereby, the rate at which an incorrect time zone is acquired can be reduced.
In such an electronic timepiece according to this embodiment, the same time correction processing as that of the electronic timepiece 1 described above is performed, and the internal time is corrected. The block selected when the time zone is corrected is also a block divided by the latitude and longitude lines.

According to the electronic timepiece according to the present embodiment described above, the same effects as the electronic timepiece 1 described above can be obtained, and the following effects can be obtained.
Since each block is a block divided by latitude lines with a predetermined interval and meridians with a predetermined interval, each block can be easily set. Moreover, since the latitude and longitude of the vertex of a block can be memorize | stored as block position information, the structure of the data containing the block position information and time zone memorize | stored in the 1st memory | storage part 71 and the 2nd memory | storage part 72 is simplified. it can.
In addition, when the number of blocks increases, detailed division by the blocks becomes possible, but it is necessary to increase the storage capacity of the first storage unit 71 and to increase the processing capability of the electronic timepiece. On the other hand, it is possible to easily adjust the data amount according to the storage capacity of the first storage unit 71 and the processing capability of the electronic timepiece by adjusting the intervals between the parallels and meridians dividing the blocks.
In addition, as described above, the number of time zones may be increased or decreased, but in this embodiment, when the time zone is corrected, the block selection unit 73 is divided by latitude lines and meridians. Since the block is selected, the time zone can be appropriately corrected.

[Modification of Embodiment]
The present invention is not limited to the above-described embodiment, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
In each of the above-described embodiments, when the current time zone is acquired in the first time correction process SA, the second time correction process SB is performed in the next process of correcting the internal time. However, the present invention is not limited to this. That is, only the first time correction process SA may be performed.

  In the first embodiment, the blocks are divided for each time zone, in the second embodiment, the blocks are divided for each administrative division, and in the third embodiment, the blocks are divided by latitude lines and meridians. However, the present invention is not limited to this. That is, the block classifications shown in the first to third embodiments may be combined. For example, land blocks may be divided into administrative divisions and maritime blocks may be divided by latitudes and meridians.

  In each of the above embodiments, the time zone correction unit 74 associates the block position information of the corresponding block with the corrected time zone and stores them in the second storage unit 72, but the present invention is not limited to this. . That is, the time zone stored in the first storage unit 71 may be updated directly. In this case, the first storage unit 71 may be configured by a rewritable nonvolatile memory. Further, the first storage unit 71 may be provided with an area in which the time zone acquired by the time zone acquisition unit 782 is set, and the first storage unit 71 and the second storage unit 72 are combined into one storage unit (memory). You may comprise.

In each of the embodiments described above, the time zone correction unit 74 corrects the time zone associated with the block selected by the block selection unit 73, but the present invention is not limited to this. For example, a configuration may be adopted in which a plurality of blocks are selected by the block selection unit 73 and the time zones stored in association with the block position information of the respective blocks are corrected simultaneously.
Further, in the case of the block classification shown in the second and third embodiments, the block selection unit 73 can select blocks in the same time zone and can collectively correct the time zones of the respective blocks. May be.

In each said embodiment, although it was set as the structure provided with the electric power generation means 4 which has a solar panel, this invention is not restricted to this. For example, you may employ | adopt the electric power generation means which is equipped with a rotor and a gear and generates electric power according to the motion of the person and thing with which the electronic timepiece was mounted | worn.
In each of the embodiments described above, the GPS satellite SL is used as the position information satellite, but the present invention is not limited to this. That is, the present invention can be applied to any electronic device having a configuration for receiving a satellite signal from a position information satellite that transmits a satellite signal including position information.

  In each of the above embodiments, the wristwatch worn by the user is exemplified as the electronic timepiece, but the present invention is not limited to this. For example, the present invention can be applied to a table clock and a wall clock. Further, the present invention can also be applied to an electronic timepiece (including a wristwatch) provided with display means having no display 23 and only a dial 21 and hands 22. Furthermore, the electronic timepiece of the invention may be incorporated in an electronic device such as a cellular phone.

  DESCRIPTION OF SYMBOLS 1 ... Electronic timepiece, 6 ... Receiving means (receiving part), 71 ... 1st memory | storage part (memory | storage part), 73 ... Block selection part, 74 ... Time zone correction part, 75 ... Time measuring part, 76 ... Reception control part (Reception) Part), 781 ... first information acquisition part, 782 ... time zone acquisition part, 783 ... first local time calculation part (local time calculation part), 784 ... first time correction part (time correction part), 791 ... second Information acquisition unit, 792... Second local time calculation unit (local time calculation unit), 793... Second time correction unit (time correction unit), BL.

Claims (11)

A receiving unit for receiving a satellite signal transmitted from the position information satellite;
A timekeeping section for measuring the internal time,
Block position information indicating the positions of a plurality of blocks that divide the earth's surface, and a storage unit that stores the time zone of each block in association with each other;
A time zone acquisition unit for acquiring, from the storage unit, the time zone associated with a block including a current location indicated by position information included in the satellite signal received by the reception unit among the plurality of blocks; ,
Based on the acquired time zone and time information included in the satellite signal received by the receiver, a local time calculator that calculates a local time of the current location;
An electronic timepiece comprising: a time correcting unit that corrects the internal time measured by the time measuring unit based on the calculated local time. A receiving unit that receives a satellite signal transmitted from a position information satellite and obtains position information and time information included in the satellite signal;
A timekeeping section for measuring the internal time,
Block position information indicating the positions of a plurality of blocks that divide the earth's surface, and a storage unit that stores the time zone of each block in association with each other;
A first information acquisition unit that causes the reception unit to receive the satellite signals transmitted from three or more position information satellites, and acquires position information and time information included in the satellite signals;
A time zone acquisition unit for acquiring, from the storage unit, the time zone associated with a block including the current location indicated by the position information acquired by the first information acquisition unit among the plurality of blocks;
A first local time calculation unit that calculates a local time based on the time zone acquired by the time zone acquisition unit and the time information acquired by the first information acquisition unit;
A first time correction unit for correcting the internal time based on the local time calculated by the first local time calculation unit;
A second information acquisition unit that causes the reception unit to receive the satellite signal transmitted from the one position information satellite, and acquires time information included in the satellite signal;
A second local time calculation unit that calculates a local time based on the time zone acquired by the time zone acquisition unit and the time information acquired by the second information acquisition unit;
An electronic timepiece comprising: a second time correction unit that corrects the internal time based on the local time calculated by the second local time calculation unit. The electronic timepiece according to claim 1 or 2,
The electronic timepiece characterized in that one time zone is stored in association with one block position information in the storage unit. The electronic timepiece according to claim 3,
The electronic timepiece characterized in that each of the plurality of blocks is divided for each time zone. The electronic timepiece according to claim 3,
The electronic clock according to claim 1, wherein each of the plurality of blocks is divided into administrative divisions in each country and region. The electronic timepiece according to claim 3,
The plurality of blocks are each divided by latitude lines having a predetermined interval and meridians having a predetermined interval. The electronic timepiece according to any one of claims 1 to 6,
A block selector for selecting at least one block from the plurality of blocks;
An electronic timepiece comprising: a time zone correction unit that corrects a time zone associated with the block selected by the block selection unit. Receives satellite signals transmitted from location information satellites,
Obtaining a time zone corresponding one-to-one to a block including a current location indicated by position information included in the received satellite signal, among a plurality of blocks dividing the earth surface;
An internal time is corrected based on the acquired time zone and a local time calculated based on time information included in the received satellite signal. An electronic timepiece control method, comprising: Receive satellite signals transmitted from three or more location information satellites,
Obtaining a time zone corresponding one-to-one to a block including a current location indicated by position information included in the received satellite signal, among a plurality of blocks dividing the earth surface;
A first time correction step of correcting an internal time based on the acquired time zone and a local time calculated based on time information included in the received satellite signal;
Receiving satellite signals transmitted from one of the position information satellites;
A second time correction step of correcting an internal time based on the acquired time zone and a local time calculated based on time information included in a satellite signal received from the position information satellite of the one aircraft; A method for controlling an electronic timepiece, comprising: An electronic clock control program executed by an electronic clock that receives a satellite signal transmitted from a position information satellite and corrects the internal time based on position information and time information included in the satellite signal,
Let the receiver receive the satellite signal,
The time zone acquisition unit is configured to acquire a time zone corresponding one-to-one to a block including the current location indicated by the position information included in the received satellite signal among a plurality of blocks dividing the earth surface,
An electronic timepiece characterized by causing a time correction unit to correct an internal time based on the acquired time zone and a local time calculated based on the time information included in the received satellite signal. Control program. An electronic clock control program executed by an electronic clock that receives a satellite signal transmitted from a position information satellite and corrects the internal time based on position information and time information included in the satellite signal,
The receiving unit receives satellite signals transmitted from three or more position information satellites,
The time zone acquisition unit is configured to acquire a time zone corresponding one-to-one to a block including the current location indicated by the position information included in the received satellite signal among a plurality of blocks dividing the earth surface,
A first time correction step of causing the first time correction unit to correct the internal time based on the acquired time zone and the local time calculated based on the time information included in the received satellite signal; ,
The receiving unit receives the satellite signal transmitted from one position information satellite,
The second time correction unit sets the internal time based on the acquired time zone and the local time calculated based on the time information included in the satellite signal received from the position information satellite. A control program for an electronic timepiece, characterized by executing a second time correction step for correction.

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