Clock, control method and program

Abstract

The present invention provides a watch, a control method, and a program that enable the input of measurement-related processing using the rotation of a pointer by rotating the bezel. [Solution] The clock 1 includes a rotatable hand that rotates as time progresses to indicate the time, a bezel rotatably positioned around the hand, a drive sensor 510 that detects the rotation of the bezel, and a control unit 509 that, upon receiving a signal from the drive sensor 510 indicating that the rotation of the bezel has been detected, starts processing related to measurement using the rotation of the hand.

Description

Technical Field

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[0001] The present invention relates to a clock, a control method, and a program.

Background Art

[0002] Patent Document 1 describes a multifunctional wristwatch that provides a plurality of worlds. It is disclosed that a desired world can be selected by operating the bezel, and the bezel rotates and engages with one of a plurality of switches to activate and select the corresponding world.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the multifunctional wristwatch described in Patent Document 1, it is necessary to operate the bezel to input to the watch. Generally, the bezel is marked with a sign or scale pointed by a pointer, and various measurements can be performed based on the relationship between the rotation of the pointer and the bezel. There is a problem that the input to the watch by operating the bezel is not related to the measurement based on the relationship between the bezel and the pointer by rotating the bezel.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a clock, a control method, and a program capable of performing a process related to measurement using the rotation of a pointer by rotating a bezel.

Means for Solving the Problems

[0006] To achieve the above object, one aspect of the clock according to the present invention is A rotatable hand that rotates over time to indicate the time, A bezel rotatably positioned around the aforementioned pointer, A drive sensor for detecting the rotation of the bezel, The system includes a control unit that, upon receiving a signal from the drive sensor indicating the detection of the rotation of the bezel, initiates a process related to measurement using the rotation of the pointer. It is characterized by the following: [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a watch, a control method, and a program that can perform measurement-related processing using the rotation of a pointer by rotating the bezel. [Brief explanation of the drawing]

[0008] [Figure 1] This figure shows the appearance of the clock according to Embodiment 1. [Figure 2] Block diagram showing the configuration of the clock according to Embodiment 1. [Figure 3] This is a flowchart of the water pressure measurement process performed by the control unit of the clock according to Embodiment 1. [Figure 4] This figure shows the appearance of the clock according to Embodiment 2. [Figure 5] This is a block diagram showing the configuration of the clock according to Embodiment 2. [Figure 6] This figure shows the appearance of the clock according to Embodiment 3. [Figure 7] This is a block diagram showing the configuration of the clock according to Embodiment 4. [Modes for carrying out the invention]

[0009] (Embodiment 1) The watch 1 according to Embodiment 1 will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals. The watch 1 according to Embodiment 1 is a diver's watch that has a function to measure water depth.

[0010] Figure 1 shows the external appearance of a clock 1 according to Embodiment 1. As shown in Figure 1, the clock 1 comprises a case 101, a dial 201, a bezel 103, an hour hand 301, a minute hand 302, a second hand 303, a display unit 202, a crown 401, and switches 402 and 403.

[0011] The case 101 is a housing in which the dial 201, display unit 202, hour hand 301, minute hand 302, and second hand 303 are arranged inside, and the crown 401 and switches 402 and 403 are arranged on the side. The case 101 may include, but is not limited to, metal or resin. The crystal 102 is a transparent component connected to the case 101 that covers the dial 201 so that it can be seen. The crystal 102 may include, but is not limited to, glass or resin.

[0012] The bezel 103 is a ring-shaped plate marked with markings or scales indicating time intervals. The bezel 103 is rotatably positioned on the outer circumference of the crystal 102 relative to the case 101. The bezel 103 may, but is not limited to, be made of metal or resin. The bezel 103 is marked with a mark indicating the start time of the dive and a scale or mark indicating the elapsed time (minutes) from the start time of the dive. The user can measure the dive time by rotating the bezel 103 to move the mark indicating the start time of the dive to the position pointed to by the minute hand 302 before starting the dive.

[0013] The dial 201 is a circular plate marked with indicators or scales to represent the time. A circular opening (not shown) is formed in the center of the dial 201. The display unit 202 is a display device that visually displays information to the user. The display unit 202 is positioned so as to be exposed through the opening in the dial 201. The display unit 202 may, but is not limited to, display the date, day of the week, water depth, tidal information, and moon phase. The display unit 202 may, but is not limited to, include a liquid crystal panel.

[0014] The hour hand 301, the minute hand 302, and the second hand 303 are pointers indicating hours, minutes, and seconds respectively. The hour hand 301, the minute hand 302, and the second hand 303 are arranged between the transparent member of the case 101 and the dial 201. The hour hand 301, the minute hand 302, and the second hand 303 are arranged to be rotatable 360° in a plane parallel to each other around the circular opening of the dial 201. The hour hand 301, the minute hand 302, and the second hand 303 are also collectively referred to as pointers.

[0015] The faucet 401 is a switch that receives an input operation from the user. The faucet 401 is arranged on the side surface of the case 101 at the 3 o'clock side so as to be pullable out in two stages and rotatable. The faucet 401 receives an operation to change the displayed time by being rotated in the pulled-out state. The switches 402 and 403 are push-button switches that receive an input operation from the user. The switches 402 and 403 are arranged to be pushable on the side surfaces of the case 101 at the 2 o'clock side and the 4 o'clock side respectively. When the switches 402 and 403 are pushed by the user, for example, they receive operations such as starting the correction of the needle position, starting the correction of the time, and switching to daylight saving time, but the operations received are not limited to this. The faucet 401 and the switches 402 and 403 are also collectively referred to as input members.

[0016] FIG. 2 is a block diagram showing the configuration of the clock 1 according to Embodiment 1. As shown in FIG. 2, the clock 1 includes stepping motors 501A and 501B, a drive circuit 502, an oscillation circuit 503, a frequency division circuit 504, a timekeeping circuit 505, a notification unit 506, a power supply unit 507, a storage unit 508, a control unit 509, a drive sensor 510, and a water pressure sensor 511.

[0017] The stepping motors 501A and 501B are respectively connected to the hour hand 301, the minute hand 302, and the second hand 303 via gears. The stepping motors 501A and 501B rotate based on the drive signals input from the drive circuit 502, and drive the connected hour hand 301, minute hand 302, and second hand 303 respectively. The stepping motors 501A and 501B are also collectively referred to as the stepping motor 501.

[0018] The drive circuit 502 is a circuit that is connected to the stepping motor 501 and outputs a drive signal to drive the stepping motor 501. The oscillation circuit 503 is a circuit that generates a signal with a specific frequency and outputs it to the frequency division circuit 504. The oscillation circuit 503 includes, for example, a crystal oscillator, but is not limited thereto. The frequency division circuit 504 divides the frequency signal output from the oscillation circuit 503 and outputs it to the timing circuit 505 and the control unit 509. The timing circuit 505 is a circuit that measures time by counting time from the initial time input from the control unit 509. It counts the number of times of the frequency signal output from the frequency division circuit 504 and adds it to the initial time to count the current time.

[0019] The notification unit 506 performs a notification operation in a mode different from the visual mode including sound and vibration based on the notification signal input from the control unit 509, and notifies the user. The notification unit 506 may include a buzzer, a vibrator, but is not limited thereto. The power supply unit 507 supplies power to the stepping motor 501, the drive circuit 502, the oscillation circuit 503, the frequency division circuit 504, the timing circuit 505, the notification unit 506, the storage unit 508, the control unit 509, the drive sensor 510, and the water pressure sensor 511. The power supply unit 507 may include a primary battery, a secondary battery, a solar cell, but is not limited thereto. In FIG. 2, the connection lines of the power supply unit are omitted. The storage unit 508 is a storage medium that stores the program executed by the control unit 509, the initial data used in the program, and the position data. The storage unit 508 may include a ROM (Read Only Memory), a RAM (Random Access Memory), but is not limited thereto.

[0020] The drive sensor 510 is a sensor that detects the rotation of the bezel 103. The drive sensor 510 measures the rotation direction and rotation angle of the bezel 103, and transmits a signal indicating the measured rotation direction and rotation angle of the bezel 103 to the control unit 509. The water pressure sensor 511 is a sensor that measures water pressure. The water pressure sensor 511 measures the water pressure and transmits a signal indicating the measured water pressure to the control unit 509.

[0021] The control unit 509 is a control device that controls the entire clock 1 by executing a program stored in the memory unit 508. The control unit 509 may include, but is not limited to, a CPU (Central Processing Unit).

[0022] When the drive sensor 510 detects that the bezel 103 has been rotated, and the control unit 509 receives a signal from the drive sensor 510 indicating that the bezel 103 has been rotated, it controls the water pressure sensor 511 to start measuring the water pressure and to start measuring the water pressure measurement preparation time. That is, in response to receiving a signal from the drive sensor 510 indicating that the rotation of the bezel 103 has been detected, the control unit 509 starts processing related to measurement (measurement of diving time) using the rotation of a pointer such as the minute hand 302 (processing for measuring the water pressure measurement preparation time). The control unit 509 may also control the water pressure sensor 511 to start measuring the water pressure and to start measuring the water pressure measurement preparation time when the position of the mark on the bezel 103 indicating the start of diving coincides with the position pointed to by the minute hand 302, that is, when the distance between the position of the mark and the position pointed to by the minute hand 302 is within a threshold.

[0023] If the water pressure sensor 511 does not detect a water pressure exceeding a threshold within a predetermined time after starting to measure the water pressure, that is, if the water pressure sensor 511 does not detect a water pressure exceeding a threshold and the water pressure measurement preparation period reaches a predetermined time, the control unit 509 controls the water pressure sensor 511 to terminate the water pressure measurement. If the control unit 509 receives a signal from the drive sensor 510 indicating that the bezel 103 has been rotated further while the water pressure sensor 511 is measuring the water pressure, it resets the water pressure measurement preparation time. The predetermined time for water pressure measurement preparation is, for example, 5 minutes, and the water pressure threshold is, for example, the water pressure at a water depth of 1.5 m, but is not limited to this.

[0024] If the control unit 509 detects a water pressure exceeding a threshold within a predetermined time after the water pressure sensor 511 starts measuring water pressure, it stores the water pressure measured by the water pressure sensor 511 and the time the water pressure was measured in the storage unit 508, and creates water pressure (water depth) log data. If the control unit 509 detects a water pressure below the threshold after the creation of the water pressure log data has started, it controls the water pressure sensor 511 to end the water pressure measurement, ends the storage of the water pressure measured by the water pressure sensor 511 and the time the water pressure was measured in the storage unit 508, and ends the creation of the water pressure log data.

[0025] The control unit 509 may switch whether or not to allow the drive sensor 510 to detect that the bezel 103 has been rotated, based on inputs via switches 402 and 403. Furthermore, when the drive sensor 510 detects that the bezel 103 has been rotated, the control unit 509 may switch whether or not to start measuring water pressure and measuring the water pressure preparation time, i.e., switch the operating mode.

[0026] Figure 3 is a flowchart of the water pressure measurement process performed by the control unit 509 of the clock 1 according to Embodiment 1. The water pressure measurement process will be explained with reference to the flowchart in Figure 3.

[0027] When the water pressure measurement process is performed, the control unit 509 determines whether the drive sensor 510 has detected that the bezel 103 has been rotated (step S101). If it is determined that no detection has been made (step S101: NO), step S101 is repeated.

[0028] If the drive sensor 510 determines that the bezel 103 has been rotated (step S101: YES), the control unit 509 controls the water pressure sensor 511 to start measuring the water pressure (step S102).

[0029] When the water pressure sensor 511 is controlled to start measuring water pressure, the control unit 509 sets the water pressure measurement preparation time to 0 and starts measuring the water pressure measurement preparation time (step S103).

[0030] When the measurement of the water pressure measurement preparation time begins, the control unit 509 determines whether the drive sensor 510 has detected that the bezel 103 has been rotated (step S104). If it determines that detection has occurred (step S104: YES), the process returns to step S103.

[0031] If the drive sensor 510 determines that it has not detected that the bezel 103 has been rotated (step S104: NO), the control unit 509 determines whether the water pressure measurement preparation time has reached a predetermined time (step S105). If it determines that the water pressure measurement preparation time has reached a predetermined time (step S105: YES), the water pressure measurement is terminated (step S106), and the water pressure measurement process is terminated.

[0032] If it is determined that the water pressure measurement preparation time has not reached the predetermined time (step S105: NO), the control unit 509 determines whether the water pressure sensor 511 has detected a water pressure exceeding a threshold (step S107). If it is determined that no such detection has occurred (step S107: NO), the process returns to step S104.

[0033] If the water pressure sensor 511 determines that it has detected a water pressure exceeding a threshold (step S107: YES), the control unit 509 stores the water pressure measured by the water pressure sensor 511 and the time the water pressure was measured in the storage unit 508 and starts creating water pressure log data (step S108).

[0034] When the creation of water pressure log data begins, the control unit 509 determines whether the water pressure sensor 511 has detected a water pressure below a threshold (step S109). If it determines that no water pressure has been detected (step S109: NO), step S109 is repeated.

[0035] If the water pressure sensor 511 determines that it has detected a water pressure below a threshold (step S109: YES), the control unit 509 controls the water pressure sensor 511 to end the water pressure measurement, ends the storage of the water pressure measured by the water pressure sensor 511 and the time the water pressure was measured in the storage unit 508, and ends the creation of water pressure log data (step S110), thus ending the water pressure measurement process.

[0036] With the above configuration, the watch 1 according to Embodiment 1 can perform measurement-related processing using the rotation of the pointer by rotating the bezel, by performing the water pressure measurement process.

[0037] Generally, divers align the bezel's indicator for the start of the dive with the minute hand to measure the dive time. The watch 1 according to Embodiment 1 starts measuring water pressure when the bezel 103 is rotated, allowing the user to start both the dive time measurement and the water depth measurement with just one operation of rotating the bezel 103, thereby reducing the operational burden on the user during diving.

[0038] The clock 1 according to Embodiment 1 can terminate water pressure measurement if the water pressure measurement preparation period reaches a predetermined time without the water pressure sensor 511 detecting a water pressure exceeding a threshold, thereby saving battery power if the user does not perform a back dive. The clock 1 according to Embodiment 1 can prevent interruption of water pressure measurement if the user wants to restart the dive by resetting the water pressure measurement preparation time if the bezel 103 is rotated further while the water pressure sensor 511 is measuring water pressure. The clock 1 according to Embodiment 1 can prevent malfunctions and save battery power when water pressure measurement is not intended by switching the operating mode related to water pressure measurement.

[0039] (Embodiment 2) The clock 1 according to Embodiment 2 will be described with reference to the drawings. The clock 1 according to Embodiment 2 has a function to determine direction by measuring the Earth's magnetic field (direction measurement function).

[0040] Figure 4 shows the appearance of the clock 1 according to Embodiment 2. As shown in Figure 4, the bezel 103 of Embodiment 2 is marked with compass markings (N, E, S, W).

[0041] Figure 5 is a block diagram showing the configuration of the clock 1 according to Embodiment 2. As shown in Figure 5, the clock 1 is equipped with a geomagnetic sensor 512. The geomagnetic sensor 512 is a sensor that measures the Earth's magnetic field. The geomagnetic sensor 512 measures the Earth's magnetic field and transmits a signal indicating the measured Earth's magnetic field to the control unit 509.

[0042] The control unit 509 determines the direction from the geomagnetic field based on the signal transmitted from the geomagnetic sensor 512 and presents the determined direction to the user. The control unit 509 presents the determined direction to the user, for example, by controlling the stepping motor 501B to move the second hand 303 to a position pointing north, or by controlling the display unit 202 to display the direction.

[0043] When the drive sensor 510 detects that the bezel 103 has rotated and the marker (N) indicating the direction on the bezel 103 coincides with the position pointed to by the second hand 303, the control unit 509 executes a direction memory function to store the angle (relative angle) at which a specific hour marker (e.g., 12 o'clock) is located relative to the bezel 103 in the memory unit 508. Subsequently, when the direction measurement function is executed, the control unit 509 controls the stepping motor 501B to move the second hand 303 to a position pointing north, and can also display the angle stored in the memory unit 508 numerically on the display unit 202, or graphically display the orientation based on the position of the second hand 303 at the relative angle stored in the memory unit 508 on the display unit 202 (direction measurement). That is, when the control unit 509 receives a signal from the drive sensor 510 indicating that the rotation of the bezel 103 has been detected, it starts processing related to measurement (direction measurement) using the rotation of a pointer such as the second hand 303 (direction memory function).

[0044] By having the above configuration, the clock 1 according to Embodiment 2 achieves the same effects as the clock 1 according to Embodiment 1. The clock 1 according to Embodiment 2 starts measuring the Earth's magnetic field and determining the direction when the bezel 103, which is marked with a compass rose, is rotated, thereby enabling simultaneous determination of direction by means of a pointer and determination of direction by the Earth's magnetic field.

[0045] (Embodiment 3) The clock 1 according to Embodiment 3 will be described with reference to the drawings. The clock 1 according to Embodiment 3 has the function of a stopwatch for measuring elapsed time.

[0046] Figure 6 shows the external appearance of the clock 1 according to Embodiment 3. As shown in Figure 6, the bezel 103 of Embodiment 3 is marked with an indicator that shows the start time of elapsed time measurement.

[0047] When the drive sensor 510 detects that the bezel 103 has been rotated, and the control unit 509 receives a signal from the drive sensor 510 indicating that the bezel 103 has been rotated, it starts measuring the elapsed time and controls the display unit 202 to display the measured elapsed time, as shown in Figure 6. In other words, when the control unit 509 receives a signal from the drive sensor 510 indicating that the rotation of the bezel 103 has been detected, it starts processing related to measurement (stopwatch) using the rotation of a pointer such as the second hand 303 (elapsed time display processing).

[0048] The control unit 509 may change the display format of the elapsed time displayed on the display unit 202 based on the relationship between the position of the bezel 103 and the position of the pointer. For example, if the marker indicating the start of measurement on the bezel 103 rotated by the user coincides with the position pointed to by the minute hand 302, that is, if the distance between the position of the marker and the position pointed to by the minute hand 302 is within a threshold, the control unit 509 may display the elapsed minutes on the display unit 202 in a way that emphasizes them. Similarly, if the marker coincides with the position pointed to by the hour hand 301 or the second hand 303, the control unit 509 may display the elapsed hours or seconds on the display unit 202 in a way that emphasizes them, respectively.

[0049] By having the above configuration, the clock 1 according to Embodiment 3 achieves the same effects as the clock 1 according to Embodiment 1. The clock 1 according to Embodiment 3 starts measuring elapsed time when the bezel 103, which is marked with the start point of elapsed time measurement, is rotated, and controls the display unit 202 to display the measured elapsed time, thereby simultaneously realizing, for example, a stopwatch function using a pointer and a stopwatch function using the display unit 202.

[0050] (Embodiment 4) A clock 1 according to Embodiment 4 will be described with reference to the drawings. The clock 1 according to Embodiment 4 is equipped with a light that allows the user to see the dial 201 even in dark places.

[0051] Figure 7 is a block diagram showing the configuration of the clock 1 according to Embodiment 4. As shown in Figure 7, the clock 1 includes an illumination unit 513. The illumination unit 513 is an illumination device positioned on the case 101 so as to be able to illuminate the dial 201 with light. The illumination unit 513 may include, but is not limited to, an LED (Light Emitting Diode).

[0052] The drive sensor 510 is a sensor that detects the rotation of the bezel 103. The drive sensor 510 measures the direction and angle of rotation of the bezel 103 and transmits a signal indicating the measured direction and angle of rotation of the bezel 103 to the control unit 509. When the drive sensor 510 detects that the bezel 103 has been rotated and transmits a signal from the drive sensor 510 indicating that the bezel 103 has been rotated, the control unit 509 lights up the illumination unit 513 to illuminate the dial 201.

[0053] By having the above configuration, the watch 1 according to Embodiment 4 achieves the same effects as the watch 1 according to Embodiment 1. In the watch 1 according to Embodiment 4, when the bezel 103 is rotated, the illumination unit 513 is lit and light is shone onto the dial 201, making it easy for the user to see the watch even when used, for example, while diving, at night, or in a dark place.

[0054] (modified version) Although embodiments of the present invention have been described above, these embodiments are merely examples, and the scope of application of the present invention is not limited thereto. That is, the embodiments of the present invention can be applied in various ways, and all embodiments fall within the scope of the present invention.

[0055] The bezel 103 is marked with indicators or scales showing time intervals, but is not limited to this. The bezel 103 may also be a pulse meter that counts pulses and calculates the heart rate based on the value pointed to by the second hand at the time of a predetermined number of beats (e.g., 15 beats). After the measurement start time marked on the bezel 103 has rotated to a position beyond the position pointed to by the second hand 303, and the second hand 303 has moved back to the measurement start time, the control unit 509 may perform processes including, for example, measuring time, calculating heart rate, displaying time or heart rate on the display unit 202, and displaying the calculation result on the display unit 202 after a predetermined time has elapsed.

[0056] The bezel 103 may be a tachymeter that measures the distance traveled and calculates the speed in hours based on the value indicated by the second hand when it has traveled a predetermined distance (e.g., 1 km). After the measurement start time marked on the bezel 103 has rotated to a position beyond the position indicated by the second hand 303, and the second hand 303 has moved back to the measurement start time, the control unit 509 may perform processes including, for example, measuring time, calculating the distance traveled per unit time (speed in hours), displaying the time or speed in hours on the display unit 202, and displaying the calculation result on the display unit 202 after a predetermined time has elapsed.

[0057] The bezel 103 may have the names of major cities inscribed on it. When the control unit 509 receives a signal from the drive sensor 510 indicating that the bezel 103 has been rotated, it may move the pointer to a position on the bezel 103 (for example, the position pointed to by the minute hand 302) that points to the current time of the city inscribed on it.

[0058] The control unit 509 controls the water pressure sensor 511 to start measuring water pressure and begin measuring the water pressure preparation time when the mark on the bezel 103 indicating the start of diving coincides with the position pointed to by the minute hand 302, but it is not limited to this. Processing may also be performed when the mark on the bezel 103 indicating the start of diving coincides with the position pointed to by at least one of the hour hand 301 or the second hand 303.

[0059] In Embodiment 2, when the control unit 509 receives a signal from the drive sensor 510 indicating that the bezel 103 has been rotated, it controls the geomagnetic sensor 512 to start measuring the geomagnetic field, determines the direction from the measured geomagnetic field, and presents the determined direction to the user. However, it is not limited to this. It may also perform direction-related processing, including processing to record the determined direction, processing to correct the presented direction from magnetic north to true north, and processing to record the destination point on the map.

[0060] Although the clock 1 according to Embodiment 3 has the function of a stopwatch for measuring elapsed time, it is not limited to this. It may also have the function of a timer that shows the remaining time until a set time. The control unit 509 may display the remaining time on the display unit 202 based on the relationship between the position of the bezel 103 and the position of the pointer. For example, if the relationship between the mark indicating the end of measurement on the bezel 103 rotated by the user and the position pointed to by the minute hand 302 shows a difference of 40 minutes, the control unit 509 may control the display unit 202 to display a countdown from 40 minutes of remaining time.

[0061] Multiple embodiments may be combined. For example, by combining embodiments 1 and 4, when the control unit 509 receives a signal from the drive sensor 510 indicating that the bezel 103 has been rotated, it may control the water pressure sensor 511 to start measuring the water pressure, start measuring the water pressure measurement preparation time, and control the illumination unit 513 to illuminate the dial 201. Similarly, any combination of embodiments may be used.

[0062] Furthermore, while it is possible to provide a clock pre-configured to realize the functions according to the present invention, it is also possible to make an existing clock function as a clock according to the present invention by applying a program. That is, by applying a program to realize the functions of the clock exemplified in the embodiments and modifications so that it can be executed by a CPU or the like that controls an existing clock, it can be made to function as a clock according to the present invention. In addition, the control method according to the present invention can be implemented using a clock control device.

[0063] Furthermore, the method of applying such a program is arbitrary. The program can be stored and applied on a computer-readable storage medium such as a flexible disk, CD (Compact Disc)-ROM, DVD (Digital Versatile Disc)-ROM, or memory card. In addition, the program can be superimposed on a carrier wave and applied via a communication medium such as the Internet. For example, the program can be posted and distributed on a bulletin board system (BBS) on a communication network. The program can then be launched and executed under the control of the OS (Operating System), just like any other application program, to perform the above-mentioned processing.

[0064] Although preferred embodiments of the present invention have been described above, the present invention is not limited to these specific embodiments, and the present invention includes the invention described in the claims and its equivalents. [Explanation of symbols]

[0065] 1...Watch, 101...Case, 102...Crystal, 103...Bezel, 201...Dial, 202...Display unit, 301...Hour hand, 302...Minute hand, 303...Second hand, 401...Crown, 402, 403...Switches, 501A, 501B...Stepping motor, 502...Drive circuit, 503...Oscillation circuit, 504...Frequency divider circuit, 505...Timekeeping circuit, 506...Notification unit, 507...Power supply unit, 508...Memory unit, 509...Control unit, 510...Drive sensor, 511...Water pressure sensor, 512...Geomagnetic sensor, 513...Illumination unit.

Claims

1. A rotatable hand that rotates over time to indicate the time, A bezel rotatably positioned around the aforementioned pointer, A drive sensor for detecting the rotation of the bezel, The system includes a control unit that, upon receiving a signal from the drive sensor indicating the detection of the rotation of the bezel, initiates a process related to measurement using the rotation of the pointer. clock.

2. The control unit acquires the position of the pointer, acquires the rotation angle of the bezel from the drive sensor, and starts the process based on the relationship between the position of the pointer and the rotation angle of the bezel. The clock according to claim 1.

3. It is further equipped with a water pressure sensor to measure water pressure, The control unit, as part of the process, controls the water pressure sensor to start measuring the water pressure. The clock according to claim 1 or 2.

4. The bezel includes a mark indicating the start of the dive, The control unit, when the distance between the bezel's indicator showing the start of diving and the position pointed to by the pointer is within a threshold, controls the water pressure sensor to start measuring the water pressure as part of the process. The clock according to claim 3.

5. The control unit, as part of the process, controls the water pressure sensor to start measuring the water pressure and starts measuring the preparation time for water pressure measurement. If the water pressure sensor detects a water pressure exceeding the threshold before the water pressure measurement preparation time exceeds the threshold, water pressure log data is created from the water pressure measured by the water pressure sensor and the time the water pressure sensor measured the water pressure. If the water pressure sensor does not detect a water pressure exceeding the threshold and the water pressure measurement preparation time exceeds the threshold, the water pressure sensor is controlled to terminate the water pressure measurement. The clock according to claim 3.

6. The control unit, when the water pressure sensor detects a water pressure below a threshold during the creation of the water pressure log data, controls the water pressure sensor to terminate the measurement of water pressure and terminate the creation of the water pressure log data. The clock according to claim 5.

7. It is further equipped with a geomagnetic sensor to measure the Earth's magnetic field, The control unit, as part of the process, controls the geomagnetic sensor to measure the geomagnetic field and determines the direction based on the measured geomagnetic field. The clock according to claim 1 or 2.

8. The bezel includes a mark indicating the start time of time measurement, The control unit, when the distance between the marker indicating the start of time measurement on the bezel and the position pointed to by the pointer is within a threshold, starts measuring time as the process. The clock according to claim 1 or 2.

9. The bezel includes a mark indicating the end of the time measurement, The control unit, based on the distance between the marker indicating the end of time measurement on the bezel and the position pointed to by the pointer, initiates a time countdown as the process. The clock according to claim 1 or 2.

10. A control method performed by a control device that controls the rotation of a rotatable pointer that rotates over time to indicate the time, and a drive sensor that detects the rotation of a bezel rotatably positioned around the pointer, Upon receiving a signal from the drive sensor indicating the detection of the rotation of the bezel, the system starts processing related to measurement using the rotation of the pointer. Control method.

11. A computer controls the rotation of a rotatable pointer that rotates over time to indicate the time, and a drive sensor that detects the rotation of a bezel rotatably positioned around the pointer, Upon receiving a signal from the drive sensor indicating the detection of the rotation of the bezel, the system initiates a process related to measurement using the rotation of the pointer. program.

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