JP2017032464A - Electronic timepiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic timepiece capable of reducing power consumption.SOLUTION: An electronic timepiece 10 comprises: a receiving device 121 which receives a satellite signal; a condition setting unit 330 which sets automatic reception conditions of the satellite signal; and an automatic reception control unit 310 which determines whether or not the satellite signal meets the automatic reception conditions, and actuates the receiving device 121 to execute reception processing when the satellite signal meets the automatic reception conditions. If reception is successful as a result of execution of reception processing, the automatic reception control unit 310 does not execute reception processing for a prescribed period. The condition setting unit 330 sets the automatic reception conditions to first automatic reception conditions. If the satellite signal meets the first automatic reception conditions but reception is unsuccessful as a result of execution of reception processing, the condition setting unit sets the automatic reception conditions to second automatic reception conditions stricter than the first automatic reception conditions.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an electronic timepiece that receives satellite signals.

Conventionally, an electronic timepiece that receives a satellite signal transmitted from a GPS (Global Positioning System) satellite and corrects the time is known (see, for example, Patent Document 1).
When the wristwatch of Patent Document 1 detects that the watch is outdoors, it determines that the condition for performing automatic reception of satellite signals is satisfied, and executes reception processing for receiving satellite signals. If the reception is successful, the reception process is not executed until 22 hours have passed since the reception was successful. After 22 hours, the reception process is executed if the conditions for performing automatic reception are met. On the other hand, if the reception is not successful, the reception process is executed once every 10 minutes at the shortest every time the automatic reception condition is met, until reception is successful.

JP 2009-168620 A

  If the satellite signal is not successfully received, for example, if the reception environment does not change, such as whether the watch is indoors or outdoors, or whether the watch is moving or stationary, it corresponds to the conditions for automatic reception. However, the situation where satellite signals cannot be received continues. In this case, in the wristwatch of Patent Document 1, the reception process is repeatedly executed at intervals of 10 minutes. For this reason, there exists a problem that power consumption increases.

  An object of the present invention is to provide an electronic timepiece that can reduce power consumption.

  The electronic timepiece of the present invention determines whether the automatic reception condition is satisfied, a reception unit that receives a satellite signal, a condition setting unit that sets an automatic reception condition of the satellite signal, and determines whether the automatic reception condition is satisfied. If applicable, an automatic reception control unit that operates the reception unit to execute a reception process, and the automatic reception control unit executes a reception process, and if reception is successful, a predetermined period, The condition setting unit does not execute the reception process, and the condition setting unit sets the automatic reception condition as the first automatic reception condition, and as a result of executing the reception process corresponding to the first automatic reception condition, reception is not successful. In this case, the automatic reception condition is set to a second automatic reception condition that is stricter than the first automatic reception condition.

The automatic reception condition is a condition for detecting that the electronic timepiece is placed outdoors.
Further, being stricter than the first automatic reception condition means that the corresponding condition is stricter than the first automatic reception condition. For example, the first automatic reception condition is a condition applicable to a case where the watch is likely to be located outdoors where satellite signals can be successfully received. The second automatic reception condition is a condition where the watch is located outdoors. This is a condition that only applies if there is a higher probability of
That is, since the first automatic reception condition is a looser condition than the second automatic reception condition, the frequency of reception processing corresponding to the condition is high, but the probability of successful reception is low. On the other hand, the second automatic reception condition is stricter than the first automatic reception condition, and therefore, the frequency of reception processing corresponding to the condition is low, but the probability of successful reception is high.
According to the present invention, if the reception process is performed under the first automatic reception condition and the satellite signal is successfully received, the automatic reception control unit does not execute the reception process for a predetermined period.
On the other hand, if the satellite signal is not successfully received as a result of the reception process corresponding to the first automatic reception condition, the condition setting unit determines that the second automatic operation is stricter than the first automatic reception condition. Set the reception condition. When the reception process based on the second automatic reception condition is successful, the automatic reception control unit does not execute the reception process for a predetermined period.
According to this, when reception by the first automatic reception condition is not successful, it corresponds to the second automatic reception condition, for example, when the clock moves from the room to the outdoors or when the clock changes from the moving state to the stationary state The reception process is executed when it can be determined that the reception environment has improved.
For this reason, compared with the case where the automatic reception condition is not changed from the first automatic reception condition, the reception process can be executed with a high probability of successful reception. Can be reduced.

  The electronic timepiece of the invention includes an illuminance detection unit that detects illuminance, and the first automatic reception condition is that the detected illuminance detected by the illuminance detection unit is greater than or equal to a first illuminance threshold, and the second automatic The reception condition is preferably that the detected illuminance is equal to or higher than a second illuminance threshold value that is higher than the first illuminance threshold value.

In many cases, the illuminance of sunlight irradiated on the timepiece outdoors is higher than the illuminance of room illumination irradiated on the timepiece indoors.
In the present invention, the first automatic reception condition is that the detected illuminance is greater than or equal to the first illuminance threshold. The first illuminance threshold is set to a value (for example, about 2000 lx) that is higher than the illuminance of general indoor lighting such as a fluorescent lamp and lower than the illuminance of sunlight such as rainy weather.
For this reason, when the automatic reception condition is set to the first automatic reception condition, in many cases, the reception process can be executed when the watch is outdoors.
In the present invention, the second automatic reception condition is that the detected illuminance is equal to or higher than a second illuminance threshold value that is higher than the first illuminance threshold value. For example, the second illuminance threshold is set to a value (for example, about 5000 lx) that has a higher illuminance than general indoor lighting, for example, higher than the illuminance (about 3000 lx) of a spotlight in a department store. For this reason, when the second automatic reception condition is satisfied, it can be determined that the watch is not irradiated with illumination such as a spotlight, but is irradiated with sunlight, and it can be determined that the watch is outdoors.
For this reason, according to the present invention, for example, in a room, the timepiece is irradiated with light having higher illuminance than general indoor lighting, and the reception process is executed under the first automatic reception condition. If it is not successful, the reception process is executed when the second automatic reception condition is satisfied and it can be determined that the watch has moved to the outdoors. For this reason, compared with the case where the automatic reception condition is not changed from the first automatic reception condition, the reception process can be executed with a high probability of successful reception. Can be reduced.

  The electronic timepiece of the invention includes an illuminance detection unit that detects illuminance, and the first automatic reception condition is that a state in which the detected illuminance detected by the illuminance detection unit is equal to or greater than a preset illuminance threshold value. The second automatic reception condition is preferably whether the state has continued for a second time threshold longer than the first time threshold.

In the present invention, the first automatic reception condition and the second automatic reception condition are set based on not only the detected illuminance but also the time when the detected illuminance is equal to or greater than the illuminance threshold.
The illuminance threshold is set to 2000 lx, for example. The first time threshold of the first automatic reception condition is set to a minimum value that can be determined that the watch is outdoors, such as 1 second.
According to the present invention, when the automatic reception condition is set to the first automatic reception condition, in many cases, the reception process can be executed when the watch is outdoors.
In the present invention, the second time threshold of the second automatic reception condition is set to 1 minute, for example.
Here, many illuminations whose illuminance is equal to or greater than the illuminance threshold illuminate merchandise, such as spotlights in department stores, etc., so that the state in which the illumination light is irradiated on the watch lasts for one minute or longer. That is rare. For this reason, if the second automatic reception condition is met, it can be determined that the watch is not illuminated by spotlights or the like, but the watch is illuminated by sunlight, and the watch is determined to be outdoors. it can.
For this reason, according to the present invention, for example, in a room, the timepiece is irradiated with light having higher illuminance than general indoor lighting, and the reception process is executed under the first automatic reception condition. If it is not successful, the reception process is executed when the second automatic reception condition is satisfied and it can be determined that the watch has moved to the outdoors. For this reason, compared with the case where the automatic reception condition is not changed from the first automatic reception condition, the reception process can be executed with a high probability of successful reception. Can be reduced.

  In the electronic timepiece according to the aspect of the invention, the condition setting unit may set the automatic reception condition to the second automatic reception condition when reception is not successful as a result of execution of reception processing corresponding to the second automatic reception condition. The automatic reception control unit maintains the reception conditions, and the automatic reception control unit includes the second automatic reception condition in a period until a predetermined time elapses from the time when the reception process is started corresponding to the first automatic reception condition. In the case where the number of reception processes executed corresponding to the above is a predetermined number, it is preferable not to execute the reception process until the elapsed time reaches the predetermined time.

  According to the present invention, when the automatic reception condition is set to the second automatic reception condition, for example, when sunlight is irradiated on the timepiece at a window in the room, the timepiece corresponds to the second automatic reception condition. When the satellite signal cannot be received, the reception process is not executed more than the predetermined number of times until the elapsed time reaches the predetermined time. For this reason, power consumption can be reduced as compared with the case where there is no limit on the number of reception processes.

  In the electronic timepiece according to the aspect of the invention, the condition setting unit may set the automatic reception condition to the second automatic reception condition when reception is not successful as a result of execution of reception processing corresponding to the second automatic reception condition. It is preferable to set the third automatic reception condition that is stricter than the reception condition.

  According to the present invention, when reception based on the second automatic reception condition is not successful, the reception process is executed when the third automatic reception condition is satisfied and it can be determined that the reception environment has improved. For this reason, compared with the case where the automatic reception condition is not changed from the second automatic reception condition, the reception process can be executed with a high probability of successful reception, so that the reception can be successfully performed with a small number of receptions, and the power consumption Can be further reduced.

  The electronic timepiece of the invention includes an illuminance detection unit that detects illuminance, and the first automatic reception condition is that the detected illuminance detected by the illuminance detection unit is greater than or equal to a first illuminance threshold, and the second automatic The reception condition is that the detected illuminance is greater than or equal to a second illuminance threshold that is higher than the first illuminance threshold, and the third automatic reception condition is that the detected illuminance is greater than or equal to a third illuminance threshold that is higher than the second illuminance threshold. It is preferable that

In the present invention, the third automatic reception condition is that the detected illuminance is equal to or higher than a third illuminance threshold higher than the second illuminance threshold. For example, the third illuminance threshold is set to a value (for example, about 8000 lx) higher than sunlight irradiated on the watch at the window in the room. For this reason, when the third automatic reception condition is met, it can be determined that the watch is exposed to sunlight outdoors instead of being exposed to sunlight at the window or the like, and the watch is determined to be outdoors. it can.
For this reason, according to the present invention, for example, when the watch is irradiated with sunlight at a window or the like in a room and the reception process is performed according to the second automatic reception condition, the reception is not successful. When the reception condition is met and it can be determined that the clock has moved to the outdoors, the reception process is executed. For this reason, compared with the case where the automatic reception condition is not changed from the second automatic reception condition, the reception process can be executed with a high probability of successful reception, so that the reception can be successfully performed with a small number of receptions, and the power consumption Can be reduced.

  The electronic timepiece of the invention includes an illuminance detection unit that detects illuminance, and the first automatic reception condition is that a state in which the detected illuminance detected by the illuminance detection unit is equal to or greater than a preset illuminance threshold value. The second automatic reception condition is whether the state has continued for a second time threshold longer than the first time threshold, and the third automatic reception condition is: It is preferable that the state continues for a third time threshold longer than the second time threshold.

In the present invention, the third time threshold of the third automatic reception condition is set to 3 minutes, for example.
Even when the watch is placed outdoors and the second automatic reception condition is met, if the user wearing the watch is walking, the angle of the watch changes according to the swing of the arm. May not be continuously incident on the watch, and satellite signals may not be received. However, in such a case, since the amount of sunlight irradiated to the watch also changes, it is unlikely that the state in which the detected illuminance is equal to or greater than the illuminance threshold continues for 3 minutes or longer. For this reason, when the third automatic reception condition is satisfied, it can be determined that the user is stationary outdoors.
For this reason, according to the present invention, for example, when a user wearing a watch is walking outdoors and reception processing is not successful as a result of execution of reception processing under the second automatic reception condition, the third automatic When the reception condition is met and it can be determined that the user is stationary, the reception process is executed. For this reason, compared with the case where the automatic reception condition is not changed from the second automatic reception condition, the reception process can be executed with a high probability of successful reception, so that the reception can be successfully performed with a small number of receptions, and the power consumption Can be reduced.

  In the electronic timepiece according to the aspect of the invention, the condition setting unit may set the automatic reception condition to the first automatic reception condition when an elapsed time from the time when the reception process is started corresponding to the first automatic reception condition is a predetermined time. It is preferable to set the automatic reception condition.

  According to the present invention, the automatic reception condition is set to the first automatic reception condition having a high frequency corresponding to the condition every predetermined time at the longest. For this reason, there is a high possibility that the reception process is performed at least once in a predetermined time. For this reason, the reception interval can be appropriately set by setting the predetermined time according to the time accuracy such as the time difference of the clock.

It is the schematic which shows the electronic timepiece which concerns on 1st Embodiment of this invention. It is a front view of the electronic timepiece in the first embodiment. It is sectional drawing of the electronic timepiece in 1st Embodiment. It is a control block diagram in a 1st embodiment. It is a data structure figure of the memory | storage device in 1st Embodiment. It is a flowchart which shows the process which the control apparatus in 1st Embodiment performs. It is a flowchart which shows the re-reception control process in 1st Embodiment. It is a flowchart which shows the re-reception control process which concerns on 2nd Embodiment of this invention. It is a flowchart which shows the re-reception control process which concerns on 3rd Embodiment of this invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 is a schematic view showing an electronic timepiece 10 of the present embodiment.
The electronic timepiece 10 receives a satellite signal from at least one GPS satellite 100 among a plurality of GPS satellites 100 orbiting the earth in a predetermined orbit, acquires time information, and at least three GPS satellites. A satellite signal from 100 is received and position information is calculated and acquired. The GPS satellite 100 is an example of a position information satellite, and a plurality of GPS satellites 100 exist over the earth. Currently, about 30 GPS satellites 100 orbit.

[Schematic configuration of electronic watch]
FIG. 2 is a front view of the electronic timepiece 10, and FIG. 3 is a cross-sectional view illustrating the outline of the electronic timepiece 10.
As shown in FIGS. 2 and 3, the electronic timepiece 10 includes an exterior case 30, a cover glass 33, and a back cover 34. The exterior case 30 is configured by fitting a bezel 32 made of ceramic to a cylindrical case 31 made of metal. On the inner peripheral side of the bezel 32, a disk-shaped dial plate 11 is disposed as a time display portion via a ring-shaped dial ring 40 made of plastic.
On the side surface of the exterior case 30, an A button 51 is provided at the 2 o'clock position, a B button 52 is provided at the 4 o'clock position, and a crown 55 is provided at the 3 o'clock position from the center of the dial 11. Yes.

As shown in FIG. 3, the electronic timepiece 10 has an opening on the front surface side that is covered with a cover glass 33 through a bezel 32, and has an opening on the back surface side. Is closed by a back cover 34 made of metal.
Inside the outer case 30, the dial ring 40 attached to the inner periphery of the bezel 32, the light-transmitting dial plate 11, the pointer shaft 25 penetrating the dial plate 11, and the needle shaft 25 circulates around the needle shaft 25. Needles 21, 22, and 23, and a drive mechanism 140 are provided. The drive mechanism 140 drives the hands 21, 22, 23, 61, 71, 81, 82, 91 and the calendar wheel 16 shown in FIG.
The pointer shaft 25 is provided along a central axis that passes through the center of the exterior case 30 in plan view and extends in the front-back direction.

  The dial ring 40 has an outer peripheral end in contact with the inner peripheral surface of the bezel 32, a flat plate portion parallel to the cover glass 33, and an inner peripheral end in contact with the dial plate 11. An inclined part inclined to the side is provided. The dial ring 40 has a ring shape in plan view and a mortar shape in sectional view. A donut-shaped storage space is formed by the flat plate portion, the inclined portion, and the inner peripheral surface of the bezel 32 of the dial ring 40, and the ring-shaped antenna body 110 is stored in the storage space.

The dial 11 is a circular plate that displays the time inside the outer case 30, is formed of a light-transmitting material such as plastic, and includes hands 21, 22, and 23 between the cover glass 33, It is arranged inside the dial ring 40.
A solar panel 135 that performs photovoltaic power generation is provided between the dial plate 11 and the ground plate 125 to which the driving mechanism 140 is attached. The solar panel 135 is a circular flat plate in which a plurality of solar cells (photovoltaic elements) that convert light energy into electric energy (electric power) are connected in series. The dial plate 11, the solar panel 135, and the base plate 125 are formed with holes through which the pointer shaft 25 and the pointer shafts (not shown) of the pointers 61, 71, 81, 82, 91 pass. In addition, the dial 11 and the solar panel 135 are formed with openings for the calendar small windows 15.

The drive mechanism 140 is attached to the ground plane 125 and is covered with the circuit board 120 from the back side. The drive mechanism 140 includes a step motor and a wheel train such as a gear, and the step motor drives each pointer by rotating the pointer shaft 25 and the like through the wheel train.
Specifically, the drive mechanism 140 includes first to sixth drive mechanisms. The first drive mechanism drives a pointer 22 (minute hand) and a pointer 23 (hour hand) indicating “minute” and “hour” at the first time (local time). Further, the hands 21, 61, 71, 81, 82, 91 shown in FIG. 2 are also driven by a similar drive mechanism (not shown). That is, the second driving mechanism drives the pointer 21 indicating “second” of the first time, the third driving mechanism drives the pointer 61 indicating the day of the week, and the fourth driving mechanism drives the pointer 71 indicating the mode and the like. The fifth drive mechanism drives the hands 81 (minutes) indicating “minute” and “hour” at the second time (home time), the hands 82 (hours), and the hands 91 indicating morning and afternoon at the second time. The sixth drive mechanism drives the calendar wheel 16 viewed from the calendar small window 15.

  The circuit board 120 includes a receiving device (GPS module) 121, a control device 300, and a storage device 200. Further, the circuit board 120 and the antenna body 110 are connected by using antenna connection pins 115. A circuit retainer 122 for covering these circuit components is provided on the back cover 34 side (back side) of the circuit board 120 provided with the receiving device 121, the control device 300, and the storage device 200. A secondary battery 130 such as a lithium ion battery is provided between the ground plate 125 and the back cover 34. The secondary battery 130 is charged with the power generated by the solar panel 135.

[Electronic watch display mechanism]
On the inner peripheral side of the dial ring 40 that surrounds the outer peripheral portion of the dial 11, a scale that divides the inner periphery into 60 divisions is shown as shown in FIG. 2. Using this scale, the hand 21 displays “second” of the first time at normal time, the hand 22 displays “minute” of the first time, and the hand 23 displays “hour” of the first time. Since the “second” of the first time is the same as the “second” of the second time described later, the user can grasp the “second” of the second time by checking the pointer 21.
The dial ring 40 has an alphabet “Y” at the 12-minute position and an alphabet “N” at the 18-minute position. The letters indicate reception (acquisition) results (Y: reception (acquisition) success, N: reception (acquisition) failure) of various information based on the satellite signal received from the GPS satellite 100. The pointer 21 indicates either “Y” or “N” and displays the reception result of the satellite signal. The reception result is displayed by pressing the A button 51 for less than 3 seconds.

  The pointer 61 is provided at a position in the 2 o'clock direction from the center of the dial 11. On the outer periphery of the rotation area of the pointer 61, the letters “S”, “M”, “T”, “W”, “T”, “F”, and “S” indicating the seventh day are written. The pointer 61 displays the day of the week by instructing one of “S” to “S”.

The pointer 71 is provided at a position in the 10 o'clock direction from the center of the dial 11. Hereinafter, the notation of the outer periphery of the rotation area of the pointer 71 will be described. The “n hour direction” (n is an arbitrary natural number) is the direction when the outer periphery of the rotation area is viewed from the pointer axis of the pointer 71. .
On the outer periphery of the range of rotation of the pointer 71 from the 6 o'clock direction to the 7 o'clock direction, an English letter “DST” and a symbol “O” are written. DST (daylight saving time) means daylight saving time. The pointer 71 indicates the setting of daylight saving time (DST: daylight saving time ON, ○: daylight saving time OFF) by indicating these letters and symbols.

  On the outer circumference of the range of rotation of the pointer 71 from the 8 o'clock direction to the 9 o'clock direction, a crescent sickle-shaped symbol 72 is formed along the circumference, with the base end in the 9 o'clock direction being thick and the tip in the 8 o'clock direction being thin. It is written. This symbol 72 is a power indicator of the secondary battery 130 (see FIG. 3), and the remaining battery level is displayed when the pointer 71 indicates a position corresponding to the remaining battery level. The pointer 71 indicates the symbol 72 at the normal time.

  An airplane-shaped symbol 73 is written on the outer periphery of the rotation area of the pointer 71 in the 10 o'clock direction. This symbol represents the airplane mode. When aircraft take off and landing, the reception of satellite signals is prohibited by the Aviation Law. The pointer 71 indicates that the in-flight mode is set and no reception is performed by designating the symbol 73.

  The number “1” and the symbol “4+” are written on the outer periphery of the rotation region of the pointer 71 from the 11 o'clock direction to the 12 o'clock direction. These numbers and symbols represent satellite signal reception modes. “1” receives GPS time information and the internal time is corrected (time measurement mode), “4+” receives GPS time information and orbit information, calculates position information that is the current position, This means that the time and time zone data described later are corrected (positioning mode).

The hands 81 and 82 are provided at a position in the 6 o'clock direction from the center of the dial 11. The hand 81 displays “minute” of the second time, and the hand 82 displays “hour” of the second time.
The pointer 91 is provided at a position in the 4 o'clock direction from the center of the dial 11 and displays the morning and afternoon of the second time.
The calendar small window 15 is provided in the opening part which opened the dial 11 in the rectangular shape, and the number printed on the calendar wheel 16 can be visually recognized from the opening part. This number represents the “day” of the date.

In the dial ring 40, time difference information 45 indicating a time difference from Coordinated Universal Time (UTC) is indicated by a numeral and a symbol other than a numeral along a scale on the inner peripheral side. The numerical time difference information 45 represents an integer time difference, and the symbol time difference information 45 represents a time difference other than an integer. The time difference between the first time displayed on the hands 21, 22 and 23 and UTC can be confirmed by the time difference information 45 indicated by the hand 21 by pressing the B button 52.
The bezel 32 provided around the dial ring 40 has city information 35 representing the representative city name of the time zone using the standard time corresponding to the time difference of the time difference information 45 written on the dial ring 40. Is also written in the time difference information 45. Here, the notation of the time difference information 45 and the city information 35 is referred to as a time zone display 46. In this embodiment, a time zone display 46 equal to the number of time zones used all over the world is shown.

[Internal structure of electronic watch]
FIG. 4 is a control block diagram of the electronic timepiece 10.
As shown in FIG. 4, the electronic timepiece 10 includes a control device 300 composed of a CPU (Central Processing Unit), a storage device 200 composed of a RAM (Random Access Memory) and a ROM (Read Only Memory), and a receiving device ( GPS module) 121, timing device 150, input device 160, drive mechanism 140, and display device 141. Each of these devices transmits and receives data via a data bus.
The electronic timepiece 10 also includes a rechargeable secondary battery 130 (see FIG. 3) that serves as a power source. The secondary battery 130 is charged with electric power supplied from the solar panel 135 via the charging circuit 131. Further, the electronic timepiece 10 includes a generated voltage detection circuit 136 that is connected to the charging circuit 131 and detects the generated voltage of the solar panel 135.

[Input device]
The input device 160 includes a crown 55, an A button 51, and a B button 52 shown in FIG.
[Display device]
The display device 141 includes the dial plate 11, dial ring 40, bezel 32, hands 21, 22, 23, 61, 71, 81, 82, 91 shown in FIG. 2.

[Receiver]
The receiving device 121 is connected to the antenna body 110, processes satellite signals received via the antenna body 110, and acquires GPS time information and position information. The antenna body 110 is transmitted from a plurality of GPS satellites 100 (see FIG. 1) orbiting the earth over a predetermined orbit and passes through the cover glass 33 and the dial ring 40 shown in FIG. Receive. Here, the receiving device 121 is an example of a receiving unit of the present invention.

  Although not shown, the receiving device 121 receives a satellite signal transmitted from the GPS satellite 100 and converts it into a digital signal, as in a normal GPS device, and a correlation between the received signals. Information acquisition for obtaining and outputting GPS time information and position information (positioning information) from the navigation message (satellite signal) demodulated by the BB unit (baseband unit) that executes the determination and demodulates the navigation message Means.

[Time measuring device]
The time measuring device 150 includes a crystal resonator driven by the electric power stored in the secondary battery 130, and updates time data using a reference signal based on an oscillation signal of the crystal resonator.

[Storage device]
As illustrated in FIG. 5, the storage device 200 includes a time data storage unit 210 and a time zone data storage unit 220.
The time data storage unit 210 includes reception time data 211, leap second update data 212, internal time data 213, first display time data 214, second display time data 215, and first time zone data. 216 and second time zone data 217 are stored.
The reception time data 211 stores time information (GPS time) acquired from satellite signals. The reception time data 211 is normally updated every second by the timing device 150, and when the satellite signal is received, the acquired time information (GPS time) is stored.
The leap second update data 212 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 this embodiment, at least “current leap second” data is stored in the leap second update data 212.

  Internal time information is stored in the internal time data 213. This internal time information is updated by the GPS time stored in the reception time data 211 and the “current leap second” stored in the leap second update data 212. That is, the internal time data 213 stores UTC (Coordinated Universal Time). When the reception time data 211 is updated by the timing device 150, the internal time information is also updated.

The first display time data 214 stores time information obtained by adding the time zone data (time difference information) of the first time zone data 216 to the internal time information of the internal time data 213. The first time zone data 216 is set as time zone data obtained when the user manually selects or receives in the positioning mode. Here, the time information of the first display time data 214 corresponds to the first time displayed by the hands 21, 22, and 23.
The second display time data 215 stores time information obtained by adding the time zone data of the second time zone data 217 to the internal time information of the internal time data 213. The second time zone data 217 is set as time zone data obtained when the user manually selects. Here, the time information of the second display time data 215 corresponds to the second time displayed by the hands 81, 82, 91.

The time zone data storage unit 220 stores position information (latitude, longitude) and time zone data (time difference information) in association with each other. Therefore, when the position information is acquired in the positioning mode, the control device 300 can acquire time zone data based on the position information (latitude, longitude).
The time zone data storage unit 220 further stores a city name and time zone data in association with each other. Therefore, when the user selects a city name for which the local time is desired by operating the crown 55, the control device 300 searches the time zone data storage unit 220 for the city name set by the user and corresponds to the city name. Time zone data to be acquired is acquired and set in the first time zone data 216 or the second time zone data 217.

[Control device]
The control device 300 includes a CPU that controls the electronic timepiece 10. The control device 300 includes an automatic reception control unit 310, a manual reception control unit 320, a condition setting unit 330, an illuminance detection unit 340, a display control unit 350, and a time correction unit 360.
The automatic reception control unit 310 executes reception processing in the time measurement mode when the automatic reception condition of the satellite signal is met.
The manual reception control unit 320 executes reception processing in the timekeeping mode when the A button 51 is pressed for 3 seconds or more and less than 6 seconds, and receives in the positioning mode when the A button 51 is pressed for 6 seconds or more. Execute the process.
The condition setting unit 330 sets automatic reception conditions.
The illuminance detection unit 340 detects the illuminance of light applied to the electronic timepiece 10 based on the generated voltage detected by the generated voltage detection circuit 136. That is, since the power generation voltage of the solar panel 135 changes according to the illuminance of the irradiated light, the illuminance can be detected by detecting the power generation voltage.
The display control unit 350 controls the display of the display device 141 by controlling the operation of the drive mechanism 140.
The time correction unit 360 corrects the reception time data 211 based on the time information acquired by receiving the satellite signal.
The details of the function of the control device 300 will be described in the processing of the control device 300 below.

Processing executed by the control device 300 will be described.
As shown in FIG. 6, when the automatic reception mode is changed from the off state to the on state, the condition setting unit 330 sets the automatic reception condition of the satellite signal to the first automatic reception condition (S11). In the present embodiment, the first automatic reception condition is that the detected illuminance detected by the illuminance detector 340 is greater than or equal to the first illuminance threshold. The first illuminance threshold is set to about 2000 lx as a value that is higher than the illuminance of general indoor lighting such as a fluorescent lamp and lower than the illuminance of sunlight during rainy weather.

Next, the automatic reception control unit 310 determines whether or not the first automatic reception condition is satisfied (S12). This determination is repeatedly performed until the first automatic reception condition is satisfied.
When it is determined YES in S12, the automatic reception control unit 310 operates the reception device 121 to start reception processing in the timekeeping mode (S13). And the control apparatus 300 starts the counter which measures elapsed time (S14).
When the reception process in the timekeeping mode is started, the reception device 121 acquires at least one GPS satellite 100, receives a satellite signal transmitted from the GPS satellite 100, and acquires time information. In addition, during the execution of the reception process, the display control unit 350 indicates that the reception process is being executed in the timekeeping mode by instructing the pointer 21 to indicate the 0-second position and instructing the pointer 71 to “1”. Let

Next, the control device 300 determines whether the satellite signal has been successfully received, that is, whether the time information has been successfully acquired (S15).
When it is determined YES in S15, the display control unit 350 causes the pointer 21 to indicate “Y” for a certain period of time, thereby displaying that the reception has been successful (S16).
Next, the time correction unit 360 stores the acquired time information in the reception time data 211. Thereby, the internal time data 213, the first display time data 214, and the second display time data 215 are corrected (S17).

Next, the control device 300 determines whether the value of the counter, that is, the elapsed time since the reception process was started in S13, is a predetermined time set in advance (S18). This determination is repeatedly performed until it is determined that the elapsed time is a predetermined time.
That is, the reception process by the automatic reception control unit 310 is not executed until the elapsed time reaches a predetermined time.
If the value of the counter reaches a predetermined time and it is determined YES in S18, the control device 300 returns the process to the start. Thereby, the automatic reception condition is maintained at the first automatic reception condition in S11, and it is determined whether or not the first automatic reception condition is satisfied in S12. And when it determines with YES by S12, a receiving process is performed again.
Thus, the reception process executed by the automatic reception control unit 310 is executed at a frequency of once every predetermined time when the electronic timepiece 10 is in an environment where satellite signals can be received. The predetermined time is set to the longest value as long as the time accuracy can be ensured when the user does not operate the electronic timepiece 10. For example, when the monthly difference of the electronic timepiece 10 is ± 5 seconds, the predetermined time is set to 6 days, and when the monthly difference is ± 15 seconds, the predetermined time is set to 2 days. In the present embodiment, the predetermined time is set to one week.

On the other hand, when it is determined as NO in S15, that is, when the satellite signal is not successfully received, the control device 300 executes the re-reception control process S30.
As shown in FIG. 7, when the re-reception control process S30 is executed, the condition setting unit 330 sets the automatic reception condition to a second automatic reception condition that is stricter than the first automatic reception condition (S31). In the present embodiment, the second automatic reception condition is that the detected illuminance detected by the illuminance detection unit 340 is equal to or higher than the second illuminance threshold higher than the first illuminance threshold. The second illuminance threshold is set to about 5000 lx as a value that is higher than general indoor lighting, for example, higher than the illuminance (about 3000 lx) of a spotlight in a department store store.

Next, the control device 300 determines whether the counter value is a predetermined time (one week) (S32).
When the value of the counter is less than the predetermined time and it is determined NO in S32, the automatic reception control unit 310 determines whether or not the second automatic reception condition is satisfied (S33).
When it is determined YES in S33, the automatic reception control unit 310 operates the reception device 121 to start reception processing in the timekeeping mode (S34).
Next, the control device 300 determines whether the satellite signal has been successfully received (S35).

When it determines with NO by S33, and when it determines with NO by S35, the control apparatus 300 returns a process to S32. That is, the processes of S32 to S35 are repeatedly executed until reception is successful or the counter value reaches a predetermined time.
In other words, if the reception by the second automatic reception condition is not successful and it is determined NO in S35, the automatic reception condition is maintained at the second automatic reception condition, and if the second automatic reception condition is met again, the reception is performed. Processing is executed.
If it is determined NO in S35, the process may be returned to S32 after a certain period of time has elapsed, such as 10 minutes, without immediately returning to S32. According to this, the reception interval by the second automatic reception condition can be set at least for a certain time.
If the value of the counter reaches a predetermined time without successful reception, it is determined YES in S32, and the control device 300 ends the re-reception control process S30 and returns the process to the start. In S11, the automatic reception condition is set as the first automatic reception condition.

On the other hand, if the reception succeeds before the counter value reaches the predetermined time and it is determined YES in S35, the display control unit 350 instructs the pointer 21 to indicate “Y” for a certain period of time, thereby succeeding in the reception. It is displayed (S36).
Next, the time correction unit 360 stores the acquired time information in the reception time data 211. Thereby, the internal time data 213, the first display time data 214, and the second display time data 215 are corrected (S37).

Next, the control device 300 determines whether the value of the counter, that is, the elapsed time since the reception process was started in S13, is a predetermined time (one week) (S38). This determination is repeatedly performed until it is determined that the value of the counter is a predetermined time.
That is, the reception process by the automatic reception control unit 310 is not executed until the elapsed time reaches a predetermined time.
And when it determines with YES by S38, the control apparatus 300 returns a process to a start. Thereby, the automatic reception condition is set as the first automatic reception condition in S11, and it is determined whether or not the first automatic reception condition is satisfied in S12.

Note that the processes of S11 to S18 and S30 are repeatedly executed until the automatic reception mode is changed from the on state to the off state. The counter starts after resetting the count value to 0 each time.
Further, the period from when the reception under the first automatic reception condition or the second automatic reception condition is successful until the counter value reaches the predetermined time is an example of the predetermined period of the present invention in which the reception process is not executed.

[Effects of First Embodiment]
When the automatic reception condition is set to the first automatic reception condition, in many cases, reception processing can be executed when the electronic timepiece 10 is outdoors.
If the satellite signal is not successfully received as a result of the reception processing corresponding to the first automatic reception condition (determined NO in S15), the condition setting unit 330 sets the automatic reception condition to the first automatic reception condition. The second automatic reception condition that is stricter than the reception condition is set (S31).
When the second automatic reception condition is satisfied, it can be determined that the electronic timepiece 10 is not irradiated with illumination such as a spotlight, but is irradiated with sunlight, and the electronic timepiece 10 can be determined to be outdoors. .
For this reason, for example, in a room, the electronic timepiece 10 is irradiated with light having a higher illuminance than general indoor lighting, and reception processing based on the first automatic reception condition is performed, so that reception is not successful. In this case, the reception process is executed when the second automatic reception condition is satisfied and it can be determined that the electronic timepiece 10 has moved outdoors. For this reason, compared with the case where the automatic reception condition is not changed from the first automatic reception condition, the reception process can be executed with a high probability of successful reception. Can be reduced. Therefore, the duration of the electronic timepiece 10 can be increased.

The condition setting unit 330 determines that the counter value, that is, the elapsed time from the start of the reception process corresponding to the first automatic reception condition, is a predetermined time (YES in S18, YES in S32). Determination, YES is determined in S38), and the automatic reception condition is set to the first automatic reception condition (S11).
According to this, the automatic reception condition is set to the first automatic reception condition having a high frequency corresponding to the condition every predetermined time at the longest. For this reason, there is a high possibility that the reception process is performed at least once in a predetermined time. For this reason, the reception interval can be appropriately set by setting the predetermined time according to the time accuracy such as the time difference of the clock.

[Second Embodiment]
In the re-reception control process S30 of the first embodiment, the reception process is executed every time the second automatic reception condition is met until reception is successful, except when the counter value reaches a predetermined time. In the re-reception control process S30A of the second embodiment, the number of reception processes is limited.

FIG. 8 is a flowchart showing the re-reception control process S30A. Each process of S31-S38 in FIG. 8 is the same as S31-S38 of the re-reception control process S30 of the first embodiment.
In the re-reception control process S30A, if it is determined in S35 that the reception has not been successful (NO in S35), the control device 300 determines whether the number of reception processes started in S34 is a predetermined number of times set in advance. Is determined (S41).
If the number of reception processes is less than the predetermined number and it is determined NO in S41, the control device 300 returns the process to S32. That is, the processes of S32 to S35 and S41 are repeatedly executed unless the reception is successful, the counter value reaches a predetermined time, or the number of reception processes is a predetermined number.
On the other hand, when the number of reception processes is a predetermined number and it is determined YES in S41, the control device 300 advances the process to S38, and when the value of the counter reaches a predetermined time, returns the process to the start. That is, if it is determined as YES in S41, the reception process is not executed at least until the value of the counter reaches a predetermined time.
In the present embodiment, the predetermined number of times is set to one. For this reason, when it is determined NO in S35, it is always determined YES in S41.
In addition, the other structure of 2nd Embodiment is the same as that of 1st Embodiment.

[Effects of Second Embodiment]
When the number of reception processes executed under the second automatic reception condition reaches a predetermined number (determined as YES in S41), the automatic reception controller 310 determines that the counter value reaches a predetermined time (YES in S38). The reception process is not executed until it is determined.
According to this, when the automatic reception condition is set to the second automatic reception condition, for example, when the electronic timepiece is irradiated with sunlight at a window in the room, the electronic timepiece corresponds to the second automatic reception condition. However, when the satellite signal cannot be received, the reception process is not executed more than the predetermined number of times until the counter value reaches the predetermined time. For this reason, power consumption can be reduced as compared with the case where there is no limit on the number of reception processes.

[Third Embodiment]
In the re-reception control process S30 of the first embodiment, the automatic reception condition is set to the second automatic reception condition until the process ends. However, in the re-reception control process S30B of the third embodiment, the second automatic reception condition is set. If reception is not successful by the condition reception process, the automatic reception condition is set as the third automatic reception condition.

FIG. 9 is a flowchart showing the re-reception control process S30B. Each process of S31-S38 in FIG. 9 is the same as S31-S38 of the re-reception control process S30 of the first embodiment.
If it is determined in S35 that the reception has not been successful (NO in S35), the condition setting unit 330 sets the automatic reception condition to a third automatic reception condition that is stricter than the second automatic reception condition (S51). . In the present embodiment, the third automatic reception condition is that the detected illuminance detected by the illuminance detection unit 340 is equal to or higher than a third illuminance threshold value that is higher than the second illuminance threshold value. The third illuminance threshold is set to about 8000 lx as a value higher than sunlight irradiated on the electronic timepiece at the window in the room or the like.

Next, the control device 300 determines whether the value of the counter is a predetermined time (one week) (S52).
When it determines with YES by S52, the control apparatus 300 returns a process to a start.
On the other hand, when it is determined NO in S52, the automatic reception control unit 310 determines whether the third automatic reception condition is satisfied (S53).
When it determines with NO by S53, the control apparatus 300 returns a process to S52. Thus, the determinations in S52 and S53 are repeatedly executed until YES is determined in S53 or the counter value reaches a predetermined time.
When it is determined YES in S53, the automatic reception control unit 310 operates the reception device 121 to start reception processing in the time measurement mode (S54).

Next, the control device 300 determines whether the satellite signal has been successfully received (S55).
When it is determined YES in S55, the display control unit 350 causes the pointer 21 to indicate “Y” for a certain period of time, thereby displaying that the reception has been successful (S56).
Next, the time correction unit 360 stores the acquired time information in the reception time data 211. Thereby, the internal time data 213, the first display time data 214, and the second display time data 215 are corrected (S57).

After the process of S57 or when it is determined that the reception is not successful in S55 (determined as NO in S55), the control device 300 determines whether the value of the counter is a predetermined time (one week) (S58). ). This determination is repeatedly performed until it is determined that the value of the counter is a predetermined time.
That is, the reception process by the automatic reception control unit 310 is not executed until the counter value reaches a predetermined time.
When it determines with YES by S58, the control apparatus 300 returns a process to a start. Thereby, the automatic reception condition is set as the first automatic reception condition in S11, and it is determined whether or not the first automatic reception condition is satisfied in S12.
In addition, the other structure of 2nd Embodiment is the same as that of 1st Embodiment.

[Effects of Third Embodiment]
If reception based on the second automatic reception condition is not successful (NO in S35), the condition setting unit 330 sets the automatic reception condition to the third automatic reception condition (S51).
If the third automatic reception condition is met, it can be determined that the electronic timepiece is not shining with sunlight at the window, etc., but sunlight is radiating outdoors, and the electronic timepiece 10 is determined to be outdoors. it can.
For this reason, for example, when the electronic watch is irradiated with sunlight at a window in the room and the reception process is not successful as a result of executing the reception process based on the second automatic reception condition, it corresponds to the third automatic reception condition. When it can be determined that the electronic timepiece has moved to the outdoors, the reception process is executed. For this reason, compared with the case where the automatic reception condition is not changed from the second automatic reception condition, the reception process can be executed with a high probability of successful reception, so that the reception can be successfully performed with a small number of receptions, and the power consumption Can be reduced.

[Other Embodiments]
The present invention is not limited to the above-described embodiments, 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 said embodiment, although 1st-3rd automatic reception conditions are detection illumination intensity more than an illumination intensity threshold value, this invention is not limited to this. For example, the state where the detected illuminance is equal to or greater than a preset illuminance threshold may be continued for a time threshold or more.
In this case, specifically, the first automatic reception condition is whether the state in which the detected illuminance is equal to or greater than the illuminance threshold continues for the first time threshold. The illuminance threshold is set to 2000 lx, for example. The first time threshold is set to a minimum value at which the electronic timepiece can be determined to be outdoors, such as 1 second, for example.

The second automatic reception condition is whether the state in which the detected illuminance is equal to or greater than the illuminance threshold continues for a second time threshold that is longer than the first time threshold. The second time threshold is set to 1 minute, for example.
Many illuminations with illuminance equal to or greater than the illuminance threshold value illuminate merchandise, such as spotlights in department store stores. It is rare. For this reason, when the second automatic reception condition is satisfied, it can be determined that the electronic timepiece is not irradiated with illumination such as a spotlight, but that the electronic timepiece is irradiated with sunlight. It can be determined that there is.
For this reason, according to the present modification, for example, in a room, the watch is irradiated with light having higher illuminance than general indoor lighting, and the reception process is executed under the first automatic reception condition. If it is not successful, the second automatic reception condition is satisfied, and the reception process is executed when it can be determined that the watch has moved to the outdoors.

The third automatic reception condition is whether the state in which the detected illuminance is equal to or greater than the illuminance threshold continues for a third time threshold that is longer than the second time threshold. The third time threshold is set to 3 minutes, for example.
Even when the electronic timepiece is placed outdoors and the second automatic reception condition is met, when the user wearing the electronic timepiece is walking, the angle of the electronic timepiece changes according to the swing of the arm. In some cases, the satellite signal is not continuously incident on the watch and the satellite signal cannot be received. However, in such a case, since the amount of sunlight irradiated to the electronic timepiece also changes, it is unlikely that the state in which the detected illuminance is equal to or higher than the illuminance threshold will continue for 3 minutes or longer. For this reason, when the third automatic reception condition is satisfied, it can be determined that the user is stationary outdoors.
Therefore, according to the present modification, for example, when a user wearing an electronic watch is walking outdoors and reception is not successful as a result of execution of reception processing under the second automatic reception condition, The reception process is executed when it is determined that the three automatic reception conditions are satisfied and the user is stationary.
In this modification, the illuminance detection need not always be performed, and may be performed, for example, every 5 seconds. In this case, the first to third automatic reception conditions may be set based on the number of times that the detected illuminance continuously exceeds the illuminance threshold.

In each of the above embodiments, the illuminance detection unit 340 detects the illuminance of the light radiated to the electronic timepiece based on the power generation voltage of the solar panel 135 detected by the power generation voltage detection circuit 136. It is not limited to this. For example, an illuminance sensor or the like may be provided in the electronic timepiece, and the illuminance detection unit 340 may detect the illuminance using this sensor.
However, when detecting the illuminance based on the generated voltage of the solar panel 135, it is not necessary to provide an illuminance sensor or the like separately in the electronic watch, so the number of parts of the electronic watch can be reduced and the volume of the electronic watch is also increased. Can be small.

In each said embodiment, although the automatic reception conditions are set on the basis of illumination intensity, this invention is not limited to this. For example, an ultraviolet sensor may be provided in the electronic timepiece, and the automatic reception condition may be set based on the amount of ultraviolet light. That is, when the electronic timepiece is outdoors, the amount of ultraviolet rays is larger than when the electronic timepiece is indoors. Therefore, it is possible to detect that the electronic timepiece is outdoors based on the amount of ultraviolet rays.
Further, an acceleration sensor or the like may be provided in the electronic timepiece, and an acceleration condition that can determine whether the electronic timepiece is stationary may be added to the first to third automatic reception conditions.
In addition, a humidity, temperature, and pressure sensor may be provided in the electronic timepiece, and conditions of humidity, temperature, and pressure that can determine that the electronic timepiece is located outdoors may be added to the first to third automatic reception conditions.

  In each said embodiment, although 1st-3rd automatic reception conditions are based on the same kind of standard called illumination intensity, this invention is not limited to this. For example, each of the first to third automatic reception conditions may be based on different standards such as illuminance, time when the illuminance is equal to or greater than the illuminance threshold, acceleration, humidity, temperature, and atmospheric pressure. Further, the first to third automatic reception conditions may have different numbers of references. For example, the first and second automatic reception conditions may be based on the illuminance, and the third automatic reception condition may be based on the time during which the illuminance and the illuminance are equal to or greater than the illuminance threshold.

In each of the above embodiments, the automatic reception control unit 310 executes the reception process regardless of the remaining battery level of the secondary battery 130 when the automatic reception condition is satisfied, but the present invention is not limited to this. For example, when the automatic reception condition is met, the reception process may be executed when the remaining battery level is equal to or higher than a preset remaining amount threshold value. For example, the remaining battery level can be determined by detecting the battery voltage of the secondary battery 130. In this case, it is possible to prevent the remaining battery level from being reduced due to the reception process and causing a system down.
Moreover, in each said embodiment, although the automatic reception control part 310 is performing the reception process of time measurement mode, this invention is not limited to this. That is, positioning mode reception processing may be executed.

In each of the embodiments described above, during the execution of the reception process, the display control unit 350 instructs the pointer 21 to indicate the 0-second position and instructs the pointer 71 to indicate “1” so that the reception process is executed in the timekeeping mode. However, the present invention is not limited to this. That is, the reception mode may not be displayed.
In each of the above embodiments, when the reception process is successful, the display control unit 350 displays that the reception is successful by instructing the pointer 21 to indicate “Y”, but the present invention is not limited to this. Not. That is, it is not necessary to display that the reception is successful.

In each of the above embodiments, the counter that measures the elapsed time starts when the reception process is started under the first automatic reception condition, but the present invention is not limited to this. For example, the counter may be started when the first automatic reception condition is set.
That is, in each of the above embodiments, the predetermined period of the present invention, which is a period in which the reception process is not executed when the reception is successful, is performed after the reception process of the first automatic reception condition is started after the reception is successful. The predetermined period is a period from when the reception is successful until the elapsed time after the first automatic reception condition is set reaches the predetermined time. There may be.
The predetermined period may coincide with a predetermined time.
That is, the predetermined period is a period from when the reception is successful to when the predetermined reception resumption condition is met, and the reception resumption condition may be set as appropriate according to the monthly difference of the electronic timepiece.

  In the second embodiment, the predetermined number of times of comparison of the number of receptions is set to one, but the present invention is not limited to this. That is, it may be set twice or more.

In each of the embodiments described above, the electronic timepiece includes the display device 141 including the dial plate 11 and hands, but the present invention is not limited to this. The electronic timepiece may include a time display unit including a liquid crystal panel. In this case, the driving body that drives the time display unit includes a driving unit that drives the liquid crystal panel.
In this case, the electronic timepiece only needs to have a time display function, and the time display unit does not have to be a display unit dedicated to time display. Examples of such an electronic timepiece include a pulse meter that is mounted on the user's arm and measures a pulse, and a GPS logger that is mounted on the user's arm and measures and accumulates the current position when the user is running. A list type device can be exemplified.

  In the embodiment, the GPS satellite 100 has been described as an example of the position information satellite, but the present invention is not limited to this. For example, as the position information satellite, a satellite used in other global public navigation satellite systems (GNSS) such as Galileo (EU), GLONASS (Russia), and Beidou (China) can be applied. Further, a geostationary satellite such as a geostationary satellite type satellite navigation augmentation system (SBAS) or a satellite such as a regional satellite positioning system (RNSS) that can search only in a specific region such as a quasi-zenith satellite can be applied.

  DESCRIPTION OF SYMBOLS 10 ... Electronic timepiece, 121 ... Reception apparatus (reception part), 310 ... Automatic reception control part, 330 ... Condition setting part, 340 ... Illuminance detection part.

Claims (8)

A receiver for receiving satellite signals;
A condition setting unit for setting an automatic reception condition of the satellite signal;
It is determined whether or not the automatic reception condition is satisfied, and if the automatic reception condition is satisfied, an automatic reception control unit that operates the reception unit to execute a reception process, and
The automatic reception control unit, as a result of executing the reception process, if the reception is successful, does not execute the reception process for a predetermined period,
The condition setting unit
Set the automatic reception condition as the first automatic reception condition,
If reception is not successful as a result of the reception process corresponding to the first automatic reception condition, the automatic reception condition is set to a second automatic reception condition that is stricter than the first automatic reception condition. An electronic timepiece characterized by that. The electronic timepiece according to claim 1,
It has an illuminance detection unit that detects illuminance,
The first automatic reception condition is that the detected illuminance detected by the illuminance detector is equal to or greater than a first illuminance threshold,
The second automatic reception condition is that the detected illuminance is equal to or higher than a second illuminance threshold higher than the first illuminance threshold. The electronic timepiece according to claim 1,
It has an illuminance detection unit that detects illuminance,
The first automatic reception condition is whether a state in which the detected illuminance detected by the illuminance detection unit is equal to or higher than a preset illuminance threshold continues for a first time threshold or more,
The electronic timepiece according to claim 2, wherein the second automatic reception condition is whether the state continues for a second time threshold longer than the first time threshold. The electronic timepiece according to any one of claims 1 to 3,
The condition setting unit maintains the automatic reception condition at the second automatic reception condition when reception is not successful as a result of execution of reception processing corresponding to the second automatic reception condition,
The automatic reception control unit is executed corresponding to the second automatic reception condition in a period until an elapsed time from when the reception process is started corresponding to the first automatic reception condition reaches a predetermined time. The electronic timepiece is characterized in that when the number of reception processes reaches a predetermined number, the reception process is not executed until the elapsed time reaches the predetermined time. The electronic timepiece according to claim 1,
If the reception is not successful as a result of executing the reception process corresponding to the second automatic reception condition, the condition setting unit sets the automatic reception condition to a third condition that is stricter than the second automatic reception condition. An electronic timepiece that is set to automatic reception conditions. The electronic timepiece according to claim 5,
It has an illuminance detector that detects illuminance,
The first automatic reception condition is that the detected illuminance detected by the illuminance detector is equal to or greater than a first illuminance threshold,
The second automatic reception condition is that the detected illuminance is equal to or higher than a second illuminance threshold higher than the first illuminance threshold,
The electronic timepiece according to claim 3, wherein the third automatic reception condition is that the detected illuminance is equal to or higher than a third illuminance threshold higher than the second illuminance threshold. The electronic timepiece according to claim 5,
It has an illuminance detection unit that detects illuminance,
The first automatic reception condition is whether a state in which the detected illuminance detected by the illuminance detection unit is equal to or higher than a preset illuminance threshold continues for a first time threshold or more,
The second automatic reception condition is whether the state has continued for a second time threshold longer than the first time threshold,
The electronic timepiece according to claim 3, wherein the third automatic reception condition is whether the state has continued for a third time threshold longer than the second time threshold. The electronic timepiece according to any one of claims 1 to 7,
The condition setting unit sets the automatic reception condition as the first automatic reception condition when an elapsed time from the time when the reception process is started corresponding to the first automatic reception condition becomes a predetermined time. An electronic watch characterized by

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