JP2014163705A - Satellite signal reception device, electronic clock, and satellite signal reception method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a satellite signal reception device capable of enhancing success probability of constant-time reception processing, to provide an electronic clock, and to provide a satellite signal reception method.SOLUTION: A satellite signal reception device 10 includes: a receiving circuit 30; a clocking device 50; a control device 40 for executing reception processing of a time measuring mode and a positioning mode; a storage device 60 for storing constant-time reception time; and an operation unit 70. The control device 40 includes: a constant-time reception control unit 410 for operating the receiving circuit 30 at constant-time reception time; a manual time measuring reception control unit 420 for operating the receiving circuit 30 when a reception processing operation of the time measuring mode is performed; a manual positioning reception control unit 430 for operating the receiving circuit 30 when a reception processing operation of the positioning mode is performed; and a constant-time reception time update unit 440 which updates the constant-time reception time in the storage device 60 when the reception processing by the manual time measuring reception control unit 420 is performed, and which does not update the constant-time reception time in the storage device 60 when the reception processing by the manual positioning reception control unit 430 is performed.

Description

  The present invention relates to a satellite signal receiving device that receives a satellite signal transmitted from a position information satellite such as a GPS satellite and acquires time information and position detection, and an electronic timepiece and satellite signal receiving device using the satellite signal receiving device. Regarding the method.

  An electronic timepiece that receives a satellite signal transmitted from a GPS (Global Positioning System) satellite and performs positioning and time adjustment is known (for example, Patent Document 1).

  The electronic timepiece of Patent Document 1 includes reception time setting means for setting a reception start time, and starts a regular reception process when the time being measured reaches the reception start time. Then, the manual reception process is started by operating an operation unit such as a button. When the manual reception process is successful, the time at which the manual reception is successful is set as the reception start time.

Here, in order to acquire multiple GPS satellites at the same time, receive ephemeris parameters and perform positioning calculation to obtain position information of positioning results, reception in about 30 seconds to 1 minute in a cold start state without holding almanac data I need time. On the other hand, in the case of time measurement for obtaining Z count, which is time information transmitted at intervals of 6 seconds, it can be performed with a reception time of about 6 seconds.
For this reason, at the time of the manual reception process, it is required to minimize the reception time by selecting and operating a time measurement mode for acquiring time information and a positioning mode for acquiring position information. .

JP 2012-225838 A

  When manual reception processing is performed by selecting the timekeeping mode or positioning mode, if the reception start time is updated when manual reception is performed in the positioning mode, the probability that reception will fail during subsequent scheduled reception increases. was there. In other words, it is preferable to set the time of regular reception to the time when you are outdoors, for example, it is better to set it in the morning commute time etc., but manual reception processing in positioning mode is usually in countries with different time zones This is often done when traveling by airplane, etc. and when it arrives at the local time.

For this reason, if the time at which manual reception processing is performed in the positioning mode is set as the reception start time for scheduled reception, it is not always set to a time suitable for reception, and reception may fail at the next scheduled reception. there were.
For example, when traveling to a country having a different time zone and returning to the home country after returning to the local time, a manual reception process in the positioning mode is usually performed at the airport that has returned home, and an operation for adjusting to the home country time is performed. However, the time zone when returning to Japan is often a time zone different from the normal behavior pattern. For example, the time zone at the time of returning to Japan may be a time zone that is usually in a building for work or a late-night time zone that is sleeping.
For this reason, if the time when manual reception processing is performed when returning to Japan is set as the reception start time for scheduled reception, reception processing often occurs in an environment where satellite signals cannot be received during subsequent scheduled reception, and reception fails. There was a problem that the probability of doing it increased.

  An object of the present invention is to provide a satellite signal receiving device, an electronic timepiece, and a satellite signal receiving method capable of increasing the success probability of the scheduled reception processing.

  The satellite signal receiving device 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 time, a storage unit that stores a regular reception time, and a time based on the satellite signal. The operation unit for selecting and instructing the reception process in the time measurement mode for acquiring information and the reception process in the positioning mode for acquiring position information based on the satellite signal, and the time measured by the time measurement unit are When the scheduled reception time stored in the storage unit is reached, there is a scheduled reception control unit that operates the reception unit to perform a reception process, and an operation that instructs the reception process in the timing mode by the operation unit. When performed, an operation for instructing reception processing in the positioning mode is performed by the manual timing reception control unit that operates the reception unit to perform reception processing in the timing mode and the operation unit. If the reception Stored in the storage unit when the reception processing in the timekeeping mode is performed by the manual positioning reception control unit that performs the reception processing in the positioning mode by operating The scheduled reception time update unit that updates the scheduled reception time and, when the reception processing in the positioning mode is performed by the manual positioning reception control unit, the scheduled reception time update unit that does not update the scheduled reception time stored in the storage unit; It is characterized by providing.

In the present invention, the satellite signal receiving apparatus updates the scheduled reception time stored in the storage unit when the manual timing reception control unit performs reception processing (manual reception processing) in the timing mode. When the reception process (manual reception process) in the positioning mode is performed by the positioning reception control unit, it is not updated.
For this reason, for example, when manual reception processing in the positioning mode is performed after moving to a foreign country or the like, the scheduled reception time is not corrected, so the possibility that the scheduled reception time is set to a time that is not suitable for scheduled reception is reduced. . Accordingly, it is possible to improve the probability of successfully receiving the satellite signal during the regular reception process.
Furthermore, since the manual reception process in the timekeeping mode is normally performed by the user intentionally operating the operation unit, it can be expected to perform the reception process in a state suitable for receiving satellite signals. For this reason, regardless of the reception result, even if the scheduled reception time is set, the probability that the satellite signal can be successfully received during the subsequent scheduled reception process can be improved.
Here, “update” may be to correct the scheduled reception time already stored in the storage unit, or an unset state (initial state where the scheduled reception time is not yet stored in the storage unit). Etc.), it may be newly set.

  Here, it is preferable that the scheduled reception time update unit updates the scheduled reception time with a time when the manual timing reception control unit succeeds in the reception process in the timing mode.

  If manual reception processing in timekeeping mode is successful, updating the scheduled reception time increases the possibility that the scheduled reception time can be set to a time suitable for reception in the user's behavior pattern. The probability of successful reception of satellite signals can be further improved.

  In addition, the scheduled reception time update unit acquires the position information satellite when the position information satellite can be acquired even if the reception process in the time measurement mode by the manual timing reception control unit fails. It is preferable to update the scheduled reception time with the time.

  Even if the manual reception process in the timekeeping mode fails, if the location information satellite can be captured and the scheduled reception time is updated, the scheduled reception is performed at a time when the location information satellite can be captured in the user's behavior pattern. The possibility that the time can be set is increased, and the probability that the satellite signal is successfully received during the scheduled reception process can be improved.

  Furthermore, when the reception processing in the timekeeping mode is performed by the manual timekeeping reception control unit, the scheduled reception time update unit, among the leap second information transmission time when leap second information is sent, Obtaining a reference leap second information transmission time closest to the time when the reception process was performed for at least one day of the week, and updating the scheduled reception time stored in the storage unit based on the reference leap second information transmission time; It is preferable.

Since the scheduled reception time is set based on the leap second information transmission time, not only the time information but also the leap second information can be acquired during the scheduled reception process. For this reason, compared with the case where leap second information is acquired at a timing different from the acquisition of time information, the number of reception processes can be reduced and power consumption can be reduced.
Further, in the satellite signal transmitted from the GPS satellite, the leap second information transmission time is 12 minutes and 30 seconds, so the actual transmission time differs for each day of the week. Since the fixed reception time is set by obtaining the reference leap second information transmission time, the leap second information can be acquired during the fixed reception process of the day of the week. Therefore, even when leap second information is updated, it can be automatically acquired and dealt with immediately.

  In addition, the scheduled reception time update unit, when the reception processing in the timekeeping mode by the manual timing reception control unit is successful, out of the leap second information transmission time to which leap second information is sent, The reference leap second information transmission time closest to the time when the reception process was performed is obtained for at least one day of the week, the scheduled reception time is set based on the reference leap second information transmission time, and stored in the storage unit. When reception processing in the timekeeping mode by the manual timekeeping reception control unit fails, the storage is performed based on the leap second information transmission time at which leap second information is transmitted next to the reference leap second information transmission time. It is preferable to update the scheduled reception time stored in the section.

If the reception process in the timekeeping mode is successful, the scheduled reception time is updated based on the reference leap second information transmission time, so the probability of successful reception can be improved even in the scheduled reception process.
On the other hand, when the reception process in the timekeeping mode fails, the scheduled reception time is updated based on the leap second information transmission time next to the reference leap second information transmission time. Can perform scheduled reception processing at different times, so that the probability of successful reception in the scheduled reception processing can be improved.

  Further, the storage unit stores the scheduled reception time for all days of the week, and the scheduled reception time update unit, when the reception processing at the scheduled reception time by the scheduled reception control unit fails, It is preferable to update the scheduled reception time stored in the storage unit to the scheduled reception time based on the leap second information transmission time after a predetermined time set in advance from the reference leap second information transmission time.

If scheduled reception at the scheduled reception time set based on the reference leap second information transmission time fails, set to the scheduled reception time based on the leap second information transmission time after a predetermined time after the reference leap second information transmission time for each day of the week doing. The leap second information transmission time after a predetermined time may be the leap second information transmission time next to the reference leap second information transmission time (for example, 12 minutes and 30 seconds later) or after that (for example, the reference leap second) It may be a leap second information transmission time (25 minutes after the information transmission time), and may be set in advance at the time of factory shipment of the satellite signal receiving apparatus or user operation.
In the user's behavior pattern, the time zone of the reference leap second information transmission time is updated to the scheduled reception time based on the leap second information transmission time after a predetermined time even if it is not suitable for reception because it is on the subway, for example This increases the possibility that the scheduled reception process can be performed in an environment suitable for receiving satellite signals. For this reason, it is possible to improve the probability that time information and leap second information can be acquired on each day of the week, compared to the case where the scheduled reception process is performed in the time zone of the reference leap second information transmission time.

  Further, the storage unit stores the scheduled reception time for all days of the week, and the scheduled reception time update unit, when the reception processing at the scheduled reception time by the scheduled reception control unit fails, It is preferable that the scheduled reception time stored in the storage unit is updated to a scheduled reception time based on a leap second information transmission time that is a predetermined time before the reference leap second information transmission time.

When scheduled reception at the scheduled reception time set based on the reference leap second information transmission time fails, set to the scheduled reception time based on the leap second information transmission time a predetermined time before the reference leap second information transmission time for each day of the week doing. Here, the leap second information transmission time before a predetermined time may be the leap second information transmission time before the reference leap second information transmission time (for example, 12 minutes 30 seconds before), or before that (for example, the reference leap second information transmission time). It may be a leap second information transmission time 25 minutes before the second information transmission time, or may be set in advance at the time of factory shipment of the satellite signal receiving device or user operation.
In the user's behavior pattern, the reference leap second information transmission time zone is updated to the scheduled reception time based on the leap second information transmission time, even if it is not suitable for reception because it is on the subway, for example. As a result, there is a high possibility that the scheduled reception process can be performed in an environment suitable for receiving a satellite signal, such as before getting on the subway. For this reason, it is possible to improve the probability that time information and leap second information can be acquired on each day of the week, compared to the case where the scheduled reception process is performed in the time zone of the reference leap second information transmission time.

  The electronic timepiece of the invention includes the satellite signal receiving device, a time display unit that displays a time measured by the time measuring unit, and a time measured by the time measuring unit when time information is successfully acquired by the reception process. And a time correction unit that corrects the time according to the time information.

  In the present invention, since the satellite signal receiving device is provided, the probability of successfully receiving the satellite signal during the scheduled reception process can be improved. Therefore, the time measurement can be corrected with the time information acquired by the scheduled reception process, and the time indication accuracy can be improved.

  The satellite signal reception method of the present invention is a manual time measurement that performs reception processing in the timekeeping mode when an operation for instructing reception processing in the timekeeping mode to acquire time information based on the satellite signal is performed. A reception control step, a manual positioning reception control step for performing reception processing in the positioning mode when an operation for instructing reception processing in the positioning mode for acquiring position information based on satellite signals is performed, and the manual When the reception processing in the timekeeping mode is performed by the timekeeping reception control step, the scheduled reception time is updated, and when the reception processing in the positioning mode is performed by the manual positioning reception control step, A scheduled reception time update step in which the scheduled reception time is not updated, and a scheduled reception control step in which a reception process is performed when the scheduled reception time is reached.

Also in the present invention, as in the case of the satellite signal receiving apparatus, the fixed reception time is not corrected when manual reception processing in the positioning mode is performed by moving to a country having a different time zone. The possibility of being set at a time that is not suitable for is reduced. Accordingly, it is possible to improve the probability of successfully receiving the satellite signal during the regular reception process.
Furthermore, since the manual reception process in the timekeeping mode is normally performed by the user intentionally operating the operation unit, it can be expected to perform the reception process in a state suitable for receiving satellite signals. For this reason, regardless of the reception result, even if the scheduled reception time is set, the probability that the satellite signal can be successfully received during the subsequent scheduled reception process can be improved.

It is a front view which shows the electronic timepiece which has the satellite signal receiver of this invention. It is a schematic sectional drawing of an electronic timepiece. It is a block diagram which shows the structure of a satellite signal receiver. It is a block diagram which shows the structure of a memory | storage device. It is a flowchart which shows the reception process in the control apparatus of a satellite signal receiver. It is a flowchart which shows a regular reception process. It is a flowchart which shows a manual reception process. It is a flowchart which shows the manual reception process of 2nd Embodiment. It is a flowchart which shows the manual reception process of 3rd Embodiment. It is a figure which shows leap second information transmission time. It is a flowchart which shows the scheduled reception process of 3rd Embodiment.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 is a front view of an electronic timepiece 1 having a satellite signal receiving device according to a first embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view of the electronic timepiece 1.
As shown in FIG. 1, the electronic timepiece 1 acquires time information by receiving satellite signals from at least one GPS satellite 100 out of a plurality of GPS satellites 100 orbiting the earth over a predetermined orbit. In addition, it is configured to receive satellite signals from at least three GPS satellites 100 and acquire position information. The GPS satellite 100 is an example of the position information satellite in the present invention, and a plurality of GPS satellites 100 exist above the earth. Currently, about 30 GPS satellites 100 orbit.

[Electronic clock]
As is clear from FIG. 1, the electronic timepiece 1 is a wristwatch that is worn on the wrist of a user, and includes a dial 11 and hands 12 (time display unit), and measures and displays the time.
Most of the dial plate 11 is formed of a non-metallic material (for example, plastic or glass) that easily transmits light and microwaves in the 1.5 GHz band.
The pointer 12 is provided on the surface side of the dial 11. The pointer 12 includes a second hand 121, a minute hand 122, and an hour hand 123 that rotate about the rotary shaft 13, and is driven by a step motor through a gear.

[Operation section operation]
In the electronic timepiece 1, processing according to manual operation of the operation unit 70 having the crown 14 and the buttons 15 and 16 is executed. Specifically, when the crown 14 is operated, a manual correction process for correcting the display time according to the operation is performed. When the button 15 is pressed for a long time (for example, 3 seconds or more), a manual reception process (forced reception process) for receiving satellite signals is executed.
Further, when the button 16 is pressed, a switching process for switching the reception mode (time measurement mode or positioning mode) is executed. Here, the time measurement mode is a mode for acquiring time information from a satellite signal. The positioning mode is a mode in which position information is acquired by performing positioning calculation based on a satellite signal, and time information is acquired from the satellite signal. In the positioning mode, the time information does not have to be acquired from the satellite signal. The setting of the reception mode by operating this button 16 is stored in the storage device 60 described later. At this time, when the positioning mode is set, the second hand 121 moves to the “Fix” position (10-second position), and when the positioning mode is set, the second hand 121 is moved to the “Time” position ( Move to the 5 second position). For this reason, the user can easily confirm the set reception mode.
Note that the reception mode may be fixed to the timekeeping mode or the positioning mode regardless of the mode set by the button 16 during the regular reception process described later, or the reception mode set by the button 16 during the regular reception process. You may control by. In this embodiment, as described later, the timed reception process is fixed to the timekeeping mode.

When the button 15 is pressed for a short time (for example, less than 3 seconds), a result display process for displaying the result of the previous reception process is performed. That is, when the reception is successful in the positioning mode, the second hand 121 moves to the position “Fix” (10-second position), and when the reception is successful in the time-measurement mode, the second hand 121 is “Time” (the 5-second position). ) Position. In the case of reception failure, the second hand 121 moves to the “N” position (20-second position).
Note that these instructions by the second hand 121 are also performed during reception. During reception in the positioning mode, the second hand 121 moves to the “Fix” position (10-second position), and during reception in the time-measurement mode, the second hand 121 moves to the “Time” position (5-second position). When the GPS satellite cannot be captured, the second hand 121 moves to the “N” position (20-second position).

[Structure of electronic watch]
As shown in FIG. 2, the electronic timepiece 1 includes an outer case 17 made of a metal such as stainless steel (SUS) or titanium. The exterior case 17 is formed in a substantially cylindrical shape. A surface glass 19 is attached to the opening on the surface side of the outer case 17 via a bezel 18. The bezel 18 is made of a non-metallic material such as ceramics in order to improve satellite signal reception performance. A back cover 20 is attached to the opening on the back side of the exterior case 17. In the exterior case 17, a movement 21, a solar cell 22, a GPS antenna 23, a secondary battery 24, and the like are arranged.

  The movement 21 includes a driving mechanism 210 including a step motor for driving the hands 12 and a wheel train 211. The step motor is composed of a motor coil 212, a stator, a rotor, and the like, and drives the pointer 12 via the train wheel 211 and the rotating shaft 13.

A circuit board 25 is disposed on the rear cover 20 side of the movement 21.
The circuit board 25 is provided with a receiving circuit 30 for processing a satellite signal received by the GPS antenna 23, a control device 40 for performing various controls such as driving control of the receiving circuit 30 and a step motor. The receiving circuit 30 and the control device 40 are driven by power supplied from the secondary battery 24.

[Solar cell]
The solar cell 22 is a photovoltaic element that performs photovoltaic generation to convert light energy into electrical energy. The solar cell 22 includes an electrode for outputting generated power, and is disposed on the back side of the dial 11. Since most of the dial plate 11 is made of a material that easily transmits light, the solar cell 22 can receive light transmitted through the surface glass 19 and the dial plate 11 and perform photovoltaic power generation.

The solar cell 22 is supported by a solar panel support substrate 220. The solar panel support substrate 220 is a conductive substrate having a thickness dimension of, for example, 0.1 mm formed of a metal material such as BS (brass), SUS (stainless steel), or titanium alloy. As a result, the solar panel support substrate 220 functions as a part of the GPS antenna 23 with the same current distribution as that of the GPS antenna 23 arranged close to the solar panel support substrate 220.
The solar panel support substrate 220 is incorporated so as not to contact the outer case 17. That is, the solar panel support substrate 220 is arranged without the outer peripheral edge being separated from and contacting the inner peripheral surface of the exterior case 17.

The solar cell 22 is electrically connected to the circuit board 25 via the conductive coil spring 22A, and the current generated by the solar cell 22 is stored in the secondary battery 24 via the conductive coil spring 22A.
The dial plate 11 and the solar cell 22 are formed so that the outer peripheral diameters of the dial plate 11 and the inner peripheral diameter of the dial ring 140 are concealed by the dial ring 140, so that the solar panel support substrate 220 is visually recognized from the outside. It will never be done. Further, the outer dimensions of the solar panel support substrate 220 are larger than those of the solar cell 22 and the dial plate 11 and are expanded to the position of the lower surface of the GPS antenna 23.

[GPS antenna]
The GPS antenna 23 is a ring antenna including a ring-shaped dielectric base material 231 having a rectangular cross-sectional shape and having an antenna electrode 232 formed on the surface thereof.
The dielectric base material 231 shortens the wavelength of radio waves. For example, so-called micalex (εr = 6), which is ceramics mainly composed of alumina (εr = 8.5) or ceramics composed of mica, for example. 0.5 to 9.5), glass (εr = 5.4 to 9.9), diamond (εr = 5.68), and the like.

  The antenna electrode 232 is formed by printing a conductive metal element such as copper or silver on the surface of the dielectric substrate 231, or attaching a conductive metal plate such as silver or copper to the surface of the dielectric substrate 231. Are formed integrally with the dielectric base material 231 in a linear manner. The antenna electrode 232 may be formed by patterning the surface of the dielectric substrate 231 by electroless plating.

The connection pin 31 is in contact with the antenna electrode 232. The connection pin 31 is inserted into a substantially cylindrical connection base 32. The connection base 32 is connected to a printed wiring on the circuit board 25 and is erected.
The connection pin 31 and the connection base 32 are electrically connected to the receiving circuit 30 through printed wiring. The connection base 32 is provided with a biasing member such as a coil spring inside the cylinder, and biases the connection pin 31 inserted into the connection base 32 toward the antenna electrode 232 side. Thereby, the connection pin 31 is pressed against the feeding point of the antenna electrode 232, and the connection state between the connection pin 31 and the antenna electrode 232 is maintained even when, for example, an impact is applied to the electronic timepiece 1.

In this embodiment, the back cover 20 made of a conductive member also serves as a ground plate (reflecting plate) of the GPS antenna 23. The back cover 20 is electrically connected to a ground terminal 26 provided on the movement 21. The ground terminal 26 is connected to the ground potential of the receiving circuit 30 of the movement 21. For this reason, the back cover 20 is electrically connected to the ground potential of the receiving circuit 30 via the ground terminal 26, and a ground plate (reflective) that reflects radio waves incident from the surface glass 19 side toward the GPS antenna 23. Plate). Since the exterior case 17 of the conductive member that is in contact with the back cover 20 also has a ground potential, the exterior case 17 also functions as a ground plate.
Furthermore, since the back cover 20 and the outer case 17 are made of metal, in addition to functioning as a ground plate, the influence on the GPS antenna 23 when mounted on the user's arm can be avoided. That is, if the case is a plastic case, the resonance frequency of the GPS antenna 23 varies depending on the influence of the arm in the vicinity and when it is not worn, which is not preferable because of a performance difference. However, since the case is made of metal, the effect of the arm can be avoided by the shielding effect, and in this embodiment, there is almost no difference in antenna characteristics between when the sensor is mounted and when it is not mounted, and stable reception performance can be obtained. However, a plastic case may be employed to improve the satellite signal reception performance.

[Secondary battery]
The secondary battery 24 is a power source for the electronic timepiece 1 and accumulates electric power generated in the solar cell 22.
In the electronic timepiece 1, the two electrodes of the solar cell 22 and the two electrodes of the secondary battery 24 can be electrically connected to each other by two conductive coil springs 22A. The secondary battery 24 is charged by the photovoltaic power generation. In the present embodiment, a lithium ion battery suitable for a portable device is used as the secondary battery 24. However, a lithium polymer battery or other secondary battery may be used, or a power storage different from the secondary battery. A body (for example, a capacitor) may be used.

[Circuit configuration of satellite signal receiver]
FIG. 3 is a block diagram showing a circuit configuration of the satellite signal receiving device 10 in the electronic timepiece 1. As shown in this figure, the satellite signal receiving device 10 includes a receiving circuit 30 (receiving unit), a control device 40 (control unit), a time measuring device 50 (time measuring unit), a storage device 60 (storage unit), And an operation unit 70.

[Configuration of storage device]
As illustrated in FIG. 4, the storage device 60 includes a time data storage unit 600, a time zone data storage unit 680, and a scheduled reception time storage unit 690.

  The time data storage unit 600 stores reception time data 610, leap second update data 620, internal time data 630, clock display time data 640, and time zone data 650.

  The reception time data 610 stores time information (GPS time) acquired from the satellite signal. The reception time data 610 is normally updated with a reference signal used for timing the time by the timing device 50, and is corrected by the acquired time information (GPS time) when a satellite signal is received.

  The leap second update data 620 stores at least current leap second data. That is, in subframe 4 and page 18 of the satellite signal, “current leap second”, “leap second update week”, “leap second update date”, and “leap second after update” are included as data relating to leap seconds. Each data is included. Among these, in the present embodiment, at least “current leap second” data is stored in the leap second update data 620.

  The internal time data 630 stores internal time information. This internal time information is updated by the GPS time stored in the reception time data 610 and the “current leap second” stored in the leap second update data 620. That is, UTC (Coordinated Universal Time) is stored in the internal time data 630. When the reception time data 610 is updated with the reference signal, the internal time information is also updated.

  The clock display time data 640 stores time data obtained by adding the time zone data of the time zone data 650 to the internal time information of the internal time data 630. The time zone data 650 is set by position information obtained when received in the positioning mode.

The time zone data storage unit 680 stores position information (latitude, longitude) and time zone (time difference information) in association with each other. For this reason, when position information is acquired in positioning mode, time zone data can be acquired based on the position information (latitude, longitude).
For example, since the standard time in Japan is the time (UTC + 9) advanced by 9 hours with respect to UTC, when the position information acquired in the side mode is Japan, the control device 40 reads from the time zone data storage unit 680. Read time difference information (+9 hours) in Japan Standard Time and store it in the time zone data 650.

  The time zone data storage unit 680 may further store a city name and time zone data in association with each other. In this case, when the user selects a city name for which the user wants to know the local time by operating the operation unit 70, the control device 40 searches the time zone data storage unit 680 for the city name set by the user, Time zone data corresponding to the city name may be acquired and set in the time zone data 650.

  The scheduled reception time storage unit 690 stores the scheduled reception time for executing the scheduled reception process by the scheduled reception control unit 410. Details of the method of storing the scheduled reception time will be described later.

[Receiver circuit]
The receiving circuit 30 is a load driven by the electric power stored in the secondary battery 24, and when driven by the control device 40, receives a satellite signal transmitted from the GPS satellite 100 through the GPS antenna 23. The reception circuit 30 transmits information such as the acquired orbit information and GPS time information to the control device 40 when the satellite signal is successfully received. On the other hand, when the reception of the satellite signal fails, the receiving circuit 30 transmits information to that effect to the control device 40. Note that the configuration of the receiving circuit 30 is the same as the configuration of a known GPS receiving circuit, and thus description thereof is omitted.

[Control device]
The control device 40 is composed of a CPU that controls the electronic timepiece 1. The control device 40 includes a scheduled reception control unit 410, a manual measurement reception control unit 420, and a manual positioning reception control unit 430 as reception control units that control the reception circuit 30 and execute reception processing. Further, the control device 40 acquires time information included in the satellite signal received by the reception circuit 30 and the time reception time update unit 440 that updates the time reception time stored in the storage device 60, and the time information includes the time information. A time correction unit 450 that corrects the time measured by the time measuring device 50 is provided.

[Regular reception control unit]
The scheduled reception control unit 410, when the time measured by the timing device 50, specifically, the internal time data 630 becomes the scheduled reception time stored in the scheduled reception time storage unit 690 of the storage device 60, The reception circuit 30 is operated to perform reception processing in the time measurement mode.

[Manual timing reception control unit]
The manual timekeeping reception control unit 420 receives the reception circuit when the user intentionally presses the button 15 of the operation unit 70 for several seconds (for example, 3 seconds) or more while the reception mode is set to the timekeeping mode. 30 is operated to perform reception processing (manual reception processing, forced reception processing) in the timekeeping mode.
The reception mode can be selected by pressing the button 16 as described above. That is, every time the button 16 is pressed, the reception mode is switched between the time measurement mode and the positioning mode.

[Manual positioning reception control unit]
When the reception mode is set to the positioning mode, the manual positioning reception control unit 430 activates the receiving circuit 30 when the user intentionally presses the button 15 of the operation unit 70 for several seconds (for example, 3 seconds) or more. It operates to perform reception processing (manual reception processing, forced reception processing) in the positioning mode.

[Regular reception time update section]
As will be described later, the scheduled reception time update unit 440 stores the start time (manual reception success time) of the reception process in the storage device 60 when the manual reception process in the timekeeping mode is successful. 690 is stored as the scheduled reception time.

[Time measuring device]
The timing device 50 includes a movement 21 and is driven by the electric power stored in the secondary battery 24 to perform timing processing. In the time measurement process, the time is measured, and a time (display time) corresponding to the time is indicated by the pointer 12.

[Operation of control device]
FIG. 5 is a flowchart showing satellite signal reception processing S1 in the satellite signal receiving apparatus 10 according to the first embodiment.
When the satellite signal receiving device 10 is activated, the control device 40 starts the reception process shown in FIG. 5. First, it is determined whether or not the timed time has reached the scheduled reception time stored in the scheduled reception time storage unit 690. Determine (S2). And when it determines with Yes by S2, the control apparatus 40 performs the scheduled reception process shown in FIG. 6 (S4).

When it is determined No in S2, the control device 40 determines whether or not a manual reception operation in which the button 15 is pressed for several seconds or more has been performed (S3). And when it determines with Yes by S3, the control apparatus 40 performs the manual reception process shown in FIG. 7 (S10).
When the scheduled reception process S4 or the manual reception process S10 is executed, or when it is determined No in S3, the control device 40 returns to the process of S2 and continues the control.

[Regular reception processing]
When the scheduled reception time is reached, the control device 40 operates the scheduled reception control unit 410 to execute the scheduled reception process S4 shown in FIG.
In this embodiment, the scheduled reception time is set as UTC time. Therefore, whether or not the timekeeping time has reached the scheduled reception time is confirmed by checking whether the internal time data 630 that is clocked by UTC matches the scheduled reception time stored in the scheduled reception time storage unit 690. Judging. Also, the scheduled reception time is set every 24 hours, and is usually the scheduled reception time once a day. The control device 40 determines Yes at S2 when the scheduled reception time comes, and determines No at other times.
For example, when the scheduled reception time is not stored in the scheduled reception time storage unit 690 after the system reset, the determination process of S2 may be performed by regarding the default time as the scheduled reception time. Alternatively, it may always be determined No in S2.

In the regular reception process S4, the regular reception control unit 410 starts the reception process in the timekeeping mode (S5).
After the reception process in S5 is started, the control device 40 determines whether or not the GPS satellite signal has been successfully received (S6).
The receiving circuit 30 first searches for GPS satellites, and the receiving circuit 30 detects GPS satellite signals. When a GPS satellite signal is detected, the GPS satellite signal is continuously received and time information is received. When the time information can be received in this way, it is determined that the GPS satellite signal has been successfully received by the reception process. In other cases, that is, when the GPS satellite signal is not detected by the receiving circuit 30 or when the time information cannot be received, it is determined that the reception of the GPS satellite signal has failed.

[Internal time correction processing in timekeeping mode]
When it is determined that the GPS satellite signal has been successfully received (S6: Yes), the control device 40 acquires time information from the received satellite signal by the time correction unit 450, and measures time according to the acquired time information. The reception time data 610 timed by the device 50 is corrected, and further corrected by the leap second update data 620 to correct the internal time data 630 (S7). When the time correction unit 450 acquires not only time information but also leap second information, the current leap second of the leap second update data 620 is corrected by the acquired leap second information. When the internal time data 630 is corrected, the clock display time data 640 is also corrected, and the instruction of the hands 12 is also corrected in conjunction with it.
On the other hand, when it is determined No in S6 (when reception fails), the control device 40 ends the scheduled reception process without performing the internal time correction process (S7).

[Manual reception processing]
Next, the manual reception process S10 will be described with reference to FIG.
When the manual reception process is executed, the control device 40 determines whether the reception mode is the positioning mode or the time measurement mode (SA11). In SA11, it is determined whether the reception mode is the positioning mode, but it may be determined whether the reception mode is the time measurement mode.

[Reception processing in timekeeping mode]
When it is determined in SA11 that it is the timekeeping mode (SA11: No), the control device 40 operates the manual timekeeping reception control unit 420 to start reception processing in the timekeeping mode (SA12).
After the reception process at SA12 is started, the control device 40 determines whether or not the time information has been successfully received (SA13). The method for determining successful reception is the same as S6 in the regular reception process.

[Internal time correction processing in timekeeping mode]
When it is determined that the GPS satellite signal has been successfully received by the reception process (in the case of SA13: Yes), the control device 40 acquires time information from the received satellite signal by the time correction unit 450, and the acquired time The internal time is corrected based on the information (SA14). This internal time adjustment process SA14 is also the same as S7 in the regular reception process.

[Memory processing of scheduled reception time]
Next, the scheduled reception time update unit 440 of the control device 40 stores the successful manual reception start time (manual reception success time) as the scheduled reception time in the scheduled reception time storage unit 690 of the storage device 60 (SA15). ).
The manual reception success time stored as the scheduled reception time is not limited to the manual reception start time when reception is successful, but may be manual reception end time or time information acquired from a satellite signal.
The initial value of the scheduled reception time may be set in advance at the time of factory shipment, or may be manually set by the user operating the operation unit 70.
Furthermore, when the manual reception process in the timekeeping mode is performed a plurality of times a day, the scheduled reception time stored in the scheduled reception time storage unit 690 is updated every time reception is successful. In other words, the scheduled reception time storage unit 690 stores the latest time when the manual reception process in the timekeeping mode is successful.

  When it is determined No in SA13 (when reception fails), the control device 40 ends the manual reception process without performing the internal time correction process (SA14) or the scheduled reception time storage process (SA15). .

[Reception processing in positioning mode]
When it is determined that the positioning mode is set in SA11 (SA11: Yes), the control device 40 operates the manual positioning reception control unit 430 to start reception processing in the positioning mode (SA16).
After the reception process at SA16 is started, the control device 40 determines whether the time information and the position information have been successfully received (SA17).

[Internal time correction processing in positioning mode]
When the control device 40 determines that the reception of the time information and the position information has been successful by the reception process (SA17: Yes), the time correction unit 450 corrects the internal time based on the acquired time information, and the position information The time zone data 650 is corrected according to the information (SA18).
When the internal time data 630 and the time zone data 650 are corrected, the time data for clock display 640 is also corrected, and the instruction of the hands 12 is also corrected in conjunction with it.

  On the other hand, when it is determined No in SA17 (when reception fails), the control device 40 ends the manual reception process without correcting the internal time and time zone.

[Effects of First Embodiment]
According to such 1st Embodiment, the following effects are obtained.
The control device 40 updates the scheduled reception time stored in the scheduled reception time storage unit 690 when the manual reception process in the timekeeping mode is successful, and updates when the manual reception process in the positioning mode is successful. Not done.
For this reason, when manual reception processing in the positioning mode is performed after moving to a foreign country or the like, the scheduled reception time is not corrected, and the possibility that the scheduled reception time is set to a time that is not suitable for scheduled reception is reduced. Accordingly, it is possible to improve the probability of successfully receiving the satellite signal during the regular reception process.

  Further, the reception process in the timekeeping mode is performed during the regular reception process, and the reception in the positioning mode in which the reception time is long is limited to the manual reception only. As described above, the positioning mode reception process is performed only during manual reception which can be expected to be operated in an environment in which the user of the electronic timepiece 1 can easily receive the satellite signal, so that the satellite signal cannot be received for a long time. It is possible to prevent the power from being consumed significantly without continuing the reception.

  Since the control device 40 performs the scheduled reception process once a day, it is possible to prevent the reception process from being performed for a long period of time. Therefore, the opportunity to automatically correct the time measured and displayed by the electronic timepiece 1 based on the time information of the satellite signal is increased, and the correct time can always be displayed, thereby improving convenience.

Furthermore, when the user wants to set the scheduled reception time, it is only necessary to perform manual reception processing in the timekeeping mode when the desired time is reached. For this reason, for example, compared with the case where the pointer 12 is moved and the scheduled reception time is set, it can be set by a very simple operation.
In addition, in the user's life pattern, by setting the time of the scheduled reception by making manual reception in the timekeeping mode even once at a time when it is easy to receive the satellite signal, the satellite can be received even at the scheduled reception time. The possibility of being in an environment where signals can be easily received can be increased, and the probability of successful reception can also be improved in this respect.
In addition, when manual reception in the timekeeping mode is successful multiple times, the latest success time is set as the scheduled reception time, so scheduled reception can be performed at the time that matches the most recent lifestyle pattern. However, the probability of successful reception can be improved.

[Second Embodiment]
Next, 2nd Embodiment of this invention is described based on drawing. Note that the structure of the electronic timepiece, the operation of the control device, and the scheduled reception process of the present embodiment are the same as those in the first embodiment, and a description thereof will be omitted.

FIG. 8 is a flowchart showing the manual reception process SB10 in the control device 40 according to the second embodiment.
As shown in FIG. 8, the control device 40 performs the processes of SB11 to SB19. Here, the processing of SB11 to SB18 is the same processing as SA11 to SA18 in the first embodiment, and thus description thereof is omitted.

In the first embodiment, the manual reception process is terminated when it is determined that the reception has failed in SA13.
On the other hand, in 2nd Embodiment, when it determines with reception failure (SB13: No) by SB13, the control apparatus 40 determines whether the GPS satellite existed and was able to be captured (SB19).
The scheduled reception time update unit 440 updates the scheduled reception time stored in the scheduled reception time storage unit 690 not only when it is determined that the reception is successful at SB13 but also when Yes is determined at SB19. (SB15). For example, the time of reception processing in the timekeeping mode, such as the time when the GPS satellite was captured, is stored in the timed reception time storage unit 690 as the timed reception time.
In addition, when it determines with No in SB19, a manual reception process is complete | finished.

[Effects of Second Embodiment]
According to such 2nd Embodiment, the same effect is obtained by the same process as the said 1st Embodiment, and the following effects are obtained.
That is, in the second embodiment, even if the manual reception process in the timekeeping mode fails, if the GPS satellite can be captured, it can be determined that the environment is easy to receive the satellite signal. It can be stored as the reception time. The GPS satellite acquisition process can be executed in a short time of less than 1 second. For this reason, even when the user fails to receive the time information due to moving into the building during the reception of the time information, the user can perform the update processing of the scheduled reception time. Therefore, the opportunity to update the scheduled reception time can be increased.

[Third Embodiment]
Next, 3rd Embodiment of this invention is described based on drawing. In addition, since the structure of the electronic timepiece of this embodiment and the operation of the control device are the same as those in the first embodiment, description thereof will be omitted.

FIG. 9 is a flowchart showing a satellite signal manual reception process SC10 in the control device 40 according to the third embodiment.
As shown in FIG. 9, the control device 40 performs processing of SC11 to SC14, SC16 to SC18, SC20, and SC21. Here, the processes of SC11 to SC14 and SC16 to SC18 are the same processes as SA11 to SA14 and SA16 to SA18 in the first embodiment.

In the first embodiment, at SA15, the success time of manual reception processing in the timekeeping mode is set to the scheduled reception time.
On the other hand, in the third embodiment, the control device 40 sets the leap second information transmission time closest to the success time as the scheduled reception time on each day of the week (Sunday to Saturday) instead of the success time of the manual reception process. Remember (SC20).

  The leap second information transmission time is a timing at which data of subframe 4 and page 18 including the leap second information is transmitted. This timing can be determined as follows. That is, the GPS time is managed in units of one week, and the Z count represents an elapsed time from the beginning of the week (Sunday 00: 00: 0). Further, subframes 1 to 5 are repeatedly transmitted in order from the start of the week, and pages 1 to 25 are transmitted in order in subframes 4 and 5. Therefore, the data of subframe 4 and page 18 is the 89th subframe from the start of the week, and the time at that time is specified as shown in FIG. Subsequent transmission timing of subframe 4 and page 18 can also be specified by the time from the beginning of the week. That is, leap second information is transmitted at intervals of 12 minutes and 30 seconds except for the timing of switching from Saturday to Sunday.

  Note that the GPS time is not adjusted for leap seconds, so the time is advanced with respect to UTC. For this reason, as shown in FIG. 10, the GPS time is corrected to UTC by adjusting the UTC time with the UTC offset included in the leap second information. For example, when the UTC offset is −16 seconds, the UTC is obtained at GPS time −16 seconds. In addition, the local time of each place can be obtained by adding a time difference. For example, the time of Tokyo (Japan Standard Time JST) can be obtained by adding +9 hours to UTC.

And in 3rd Embodiment, as shown in FIG. 9, the control apparatus 40 corrects an internal time, when reception is successful in time measurement mode (SC13: Yes) (SC14). Then, the scheduled reception time update unit 440 sets the next scheduled reception time for each day of the week based on the leap second information transmission time (hereinafter referred to as the reference leap second information transmission time) that is closest to the time when the reception process was performed. Obtained and stored in the scheduled reception time storage unit 690 (SC20).
For example, if manual reception processing in the timekeeping mode is started at 00:25:40 (UTC: 00:25:24, JST: 09:25:24) on Saturday in GPS time, from Sunday to Saturday the next day The reference leap second information transmission time closest to the reception time (smallest time difference) is obtained for each day of the week. The reference leap second information transmission time in the case of Sunday is 00:21:18 on Sunday in GPS time. Similarly, the reference leap second information transmission time from Monday to Saturday is obtained. As a method for obtaining this, list data indicating leap second information transmission times as shown in FIG. 10 may be stored in the storage device 60 and searched, or an equation for obtaining leap second information transmission times may be used. You may memorize | store and obtain | require by calculation processing.

Furthermore, in order to ensure acquisition of leap second information during scheduled reception processing, the time from the start of reception processing to the time when a satellite is searched for and captured is taken into consideration, and a predetermined time before leap second information transmission time (transmission timing). It is necessary to set the scheduled reception time so that the reception process is started (in this embodiment, 20 seconds before). That is, the scheduled reception time is set based on the leap second information transmission time.
For this reason, the scheduled reception time updating unit 440 sets the time 20 seconds before the reference leap second information transmission time (for example, 00:21:18 on Sunday in GPS time) obtained for each day of the week as the scheduled reception time (for example, GPS time is set to 00:01:18 on Sunday, etc.) and stored in the scheduled reception time storage unit 690.
Therefore, the scheduled reception process for the next day and after is executed at the scheduled reception time set based on the leap second information transmission time, and not only the time information but also the leap second information can be acquired.

On the other hand, when reception fails in the timekeeping mode (SC13: No), the scheduled reception time update unit 440, on each day of the week, transmits the leap second information transmission time (hereinafter referred to as the reference time) closest to the time at which the reception process was performed. The scheduled reception time is obtained based on the next leap second information transmission time (referred to as second information transmission time) and stored in the scheduled reception time storage unit 690 (SC21).
For example, if reception processing is performed at 00:25:40 (UTC: 00:25:24, JST: 09:25:24) on Sunday in GPS time, the reference leap second information transmission time on Sunday is in GPS time. It is 00:21:18 on Sunday. Therefore, the leap second information transmission time next to the reference leap second information transmission time is 00:33:48 (UTC: 00:33:32, JST: 09:33:32) in GPS time. Also, the scheduled reception time for other days is set based on the leap second information transmission time next to the reference leap second information transmission time for each day of the week. Then, the scheduled reception time update unit 440 sets the scheduled reception time 20 seconds before the leap second information transmission time of each day of the week (00:33:28 for Sunday GPS time).
For this reason, the scheduled reception process can be performed immediately after reception failure, the scheduled reception process is executed in the same time zone after the next day, and not only time information but also leap second information can be acquired.

[Regular reception processing]
Next, the scheduled reception process of the third embodiment will be described with reference to FIG.
When the time counted by the internal time data 630 and the current day of the week are the scheduled reception time and day of the week stored in the scheduled reception time storage unit 690, the control device 40 of the satellite signal receiving device 10 performs the scheduled reception process SC4 shown in FIG. Execute. In FIG. 11, SC5 to SC7 are the same processing as S5 to S7 in FIG.
If reception is unsuccessful and it is determined No in SC6, the scheduled reception time update unit 440 obtains the scheduled reception time based on the leap second information transmission time after a predetermined time from the reference leap second information transmission time, and the scheduled reception time It memorize | stores in the memory | storage part 690 (SC8). Here, since the leap second information transmission time is 12 minutes and 30 seconds as shown in FIG. 10, the scheduled reception time update unit 440 performs a predetermined time after a predetermined time such as 25 minutes or 50 minutes later. Set the scheduled reception time based on the leap second information transmission time.

[Effects of Third Embodiment]
According to such 3rd Embodiment, the same effect is obtained by the same process as the said 1st Embodiment, and the following effects are obtained.
That is, in the third embodiment, not only the time information but also the leap second information can be acquired by performing the scheduled reception process in accordance with the leap second information transmission time transmitted at intervals of 12 minutes and 30 seconds. For this reason, compared with the case where leap second information is acquired at a timing different from the time information, the number of reception processes can be reduced, and power consumption can be reduced.
Furthermore, since leap second information can also be acquired during scheduled reception processing, even when leap second information is updated, it can be automatically acquired and dealt with immediately. In other words, it is possible to grasp the time reflecting the latest leap second, and the accurate time can always be displayed on the electronic timepiece.

  In SC21 of FIG. 9, when manual reception in the timekeeping mode fails, the scheduled reception time is set based on the leap second information transmission time next to the reference leap second information transmission time closest to the reception processing time. Therefore, the scheduled reception time can be set to a time different from the time zone when manual reception failed. For this reason, it is possible to increase the possibility of successful reception during scheduled reception processing.

  Furthermore, in SC8 of FIG. 11, when reception fails in the scheduled reception process, the scheduled reception time is set based on the leap second information transmission time that is a predetermined time after the reference leap second information transmission time. The scheduled reception time can be set to a time different from the time zone in which the scheduled reception failed. For this reason, it is possible to increase the possibility of successful reception during the next scheduled reception process.

In SC8, the scheduled reception time is set based on the leap second information transmission time after the predetermined time after the reference leap second information transmission time, but the leap second information transmission time before the predetermined time of the reference leap second information transmission time. The scheduled reception time may be set based on the above.
In this case, the scheduled reception process is not performed immediately after reception failure. For this reason, the next scheduled reception process is executed after the next day, the number of reception processes per day can be reduced, and power consumption can be reduced.
Furthermore, in the third embodiment, the predetermined time for changing the scheduled reception time when the scheduled reception process fails may be changed according to the number of times the scheduled reception process continuously fails. For example, if the scheduled reception process fails once, the predetermined time is 25 minutes, if it fails twice consecutively, it is 50 minutes, and if it fails three consecutive times, it is 75 minutes. For example, the predetermined time may be increased according to the number of consecutive failures.
Further, in the third embodiment, the scheduled reception time update unit 440 obtains the next scheduled reception time based on the reference leap second information transmission time on each day of the week (all days) and stores it in the scheduled reception time storage unit 690. Was. However, since the leap second information is not updated frequently, it is not always necessary to obtain it. Therefore, it is not necessary to perform processing for obtaining the next scheduled reception time for all days of the week and storing it in the scheduled reception time storage unit 690. For example, the next scheduled reception time is obtained based on the reference leap second information transmission time only for a predetermined day of the week, the scheduled reception time of the day is set, and the other day of the week is the same as the obtained scheduled reception time. Can be set. In this case, the scheduled reception time storage unit 690 may store the same scheduled reception time for all days of the week, or may store only the scheduled reception time without storing the day of the week.

[Other Embodiments]
In addition, this invention is not limited to the structure of each said embodiment, A various deformation | transformation implementation is possible within the range of the summary of this invention.
For example, in the above-described embodiment, the satellite signal reception processing is performed by the regular reception processing and the manual reception processing. However, an outdoor detection device that detects that the electronic timepiece 1 is disposed outdoors is provided, and the outdoor operation is performed outdoors. You may add the automatic reception process which performs a reception process automatically, if it detects having arrange | positioned outdoors with the detection apparatus.
In addition, as an outdoor detection apparatus, what is necessary is just to use the apparatus which can detect that it has arrange | positioned outdoors, for example, detects sunlight, such as a solar cell and an ultraviolet sensor.

  In the above embodiment, the scheduled reception process is fixed to the timing mode. However, the user can select the timing mode and the positioning mode in advance by setting the reception mode with a button operation in advance. You may comprise so that a process can be performed.

  In the above embodiment, the GPS satellite has been described as an example of the position information satellite. However, as the position information satellite of the present invention, not only the GPS satellite but also Galileo (EU), GLONASS (Russia), Hokuto (China), etc. Other global navigation satellite systems (GNSS), geostationary satellites such as SBAS, and position information satellites that transmit satellite signals including time information such as quasi-zenith satellites may be used.

  The satellite signal receiving device of the present invention and the electronic timepiece having the satellite signal receiving device are not limited to wristwatches, and are driven by a battery or the like such as a portable GPS receiver used for mobile phone, mountain climbing, etc. It can be widely used in devices that receive satellite signals transmitted from information satellites.

  DESCRIPTION OF SYMBOLS 1 ... Electronic timepiece, 10 ... Satellite signal receiving device, 23 ... Antenna, 30 ... Reception circuit, 40 ... Control device, 50 ... Time measuring device, 60 ... Memory | storage device, 70 ... Operation part, 100 ... GPS satellite, 410 ... Scheduled reception Control unit, 420 ... Manual timing reception control unit, 430 ... Manual positioning reception control unit, 440 ... Scheduled reception time update unit, 450 ... Time correction unit, 600 ... Time data storage unit, 610 ... Reception time data, 620 ... 閏Second update data, 630 ... internal time data, 640 ... time data for clock display, 650 ... time zone data, 680 ... time zone data storage unit, 690 ... scheduled reception time storage unit.

Claims (9)

A receiving unit for receiving a satellite signal transmitted from the position information satellite;
A timekeeping section that keeps time,
A storage unit for storing a scheduled reception time;
An operation unit for selecting and instructing reception processing in a time measurement mode for acquiring time information based on the satellite signal and reception processing in a positioning mode for acquiring position information based on the satellite signal;
When the time measured by the timekeeping unit is the scheduled reception time stored in the storage unit, the scheduled reception control unit that operates the reception unit to perform reception processing;
A manual timed reception control unit for operating the receiving unit to perform the receiving process in the timed mode when an operation for instructing the receiving process in the timed mode is performed by the operation unit;
A manual positioning reception control unit that operates the receiving unit to perform the receiving process in the positioning mode when an operation to instruct the receiving process in the positioning mode is performed by the operation unit;
When reception processing in the timekeeping mode is performed by the manual timekeeping reception control unit, the scheduled reception time stored in the storage unit is updated, and the manual positioning reception control unit updates in the positioning mode. A satellite signal receiving apparatus, comprising: a scheduled reception time update unit that does not update the scheduled reception time stored in the storage unit when reception processing is performed. The satellite signal receiving device according to claim 1,
The scheduled reception time update unit updates the scheduled reception time with a time at which the manual timing reception control unit has succeeded in reception processing in the timing mode. In the satellite signal receiving device according to claim 1 or 2,
The scheduled reception time update unit, when the position information satellite can be captured even if the manual timing reception control unit fails in the reception process in the timing mode, the time at which the position information satellite was captured is The satellite signal receiving apparatus, wherein the scheduled reception time is updated. In the satellite signal receiving device according to any one of claims 1 to 3,
The scheduled reception time update unit, when the reception processing in the timing mode is performed by the manual timing reception control unit, out of the leap second information transmission time at which leap second information is transmitted. A reference leap second information transmission time closest to the time at which the process was performed is obtained for at least one day of the week, and the scheduled reception time stored in the storage unit is updated based on the reference leap second information transmission time. A satellite signal receiver. The satellite signal receiving device according to claim 4, wherein
The scheduled reception time update unit
When reception processing in the timekeeping mode by the manual timekeeping reception control unit is successful, the leap second information transmission time from which leap second information is sent is closest to the time at which the reception processing was performed Obtaining a reference leap second information transmission time for at least one day of the week, setting the scheduled reception time based on the reference leap second information transmission time and storing it in the storage unit;
If reception processing in the timekeeping mode by the manual timekeeping reception control unit fails, the leap second information transmission time at which leap second information is sent next to the reference leap second information transmission time is Updating the scheduled reception time stored in the storage unit;
A satellite signal receiving device. In the satellite signal receiver according to claim 4 or 5,
The storage unit stores the scheduled reception time for all days of the week,
The scheduled reception time update unit presets the scheduled reception time stored in the storage unit from the reference leap second information transmission time when the reception processing at the scheduled reception time by the scheduled reception control unit fails The satellite signal receiving apparatus is updated to a scheduled reception time based on a leap second information transmission time after a predetermined time. In the satellite signal receiver according to claim 4 or 5,
The storage unit stores the scheduled reception time for all days of the week,
The scheduled reception time update unit presets the scheduled reception time stored in the storage unit from the reference leap second information transmission time when the reception processing at the scheduled reception time by the scheduled reception control unit fails The satellite signal receiving apparatus is updated to a scheduled reception time based on a leap second information transmission time before a predetermined time. A satellite signal receiving device according to any one of claims 1 to 7,
A time display unit for displaying a time measured by the time measuring unit;
An electronic timepiece comprising: a time correcting unit that corrects the time measured by the time measuring unit based on the time information when the reception process succeeds in obtaining the time information. A manual timed reception control step for performing the reception process in the timekeeping mode when an operation for instructing the reception process in the timed mode to acquire time information based on the satellite signal is performed;
Manual positioning reception control step for performing reception processing in the positioning mode when an operation for instructing reception processing in the positioning mode for acquiring position information based on satellite signals is performed;
When reception processing in the timekeeping mode is performed by the manual timing reception control step, the scheduled reception time is updated, and when reception processing in the positioning mode is performed by the manual positioning reception control step Is a scheduled reception time update step that does not update the scheduled reception time; and
A scheduled reception control step for performing a reception process when the scheduled reception time is reached;
A satellite signal receiving method comprising:

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