JP6291782B2 - Pointer position correcting method, pointer position correcting system, and pointer type display device - Google Patents

Description

  The present invention relates to a pointer position correcting method, a pointer position correcting system, and a pointer type display device for a pointer type display device.

  There is a pointer type display device that electrically moves a pointer using a stepping motor and displays information according to a position indicated by the pointer. In this pointer-type display device, a rotor of a stepping motor is rotated by an induced magnetic field generated by applying a predetermined voltage pulse and flowing a current to rotate a gear and a pointer attached to the gear. Therefore, in places where an external magnetic field is applied, the stepping motor may not rotate as intended and the pointer may idle. In addition, when a large acceleration is generated due to an impact on the pointer type display device, the position of the pointer may move unintentionally.

  Conventionally, in such a pointer type display device, pointer position information that should be based on a control operation for moving the position of the pointer is held, and compared with an actual pointer position detected at a predetermined interval, It is determined whether or not a positional deviation has occurred, and the pointer position corresponding to the deviation is corrected. In Patent Document 1, a slit provided in a rotating disk that rotates in conjunction with a pointer is detected by a photo interrupter, and position data corresponding to the detected position is compared with pointer position information to determine whether the pointer position is correct or not. Techniques for detection are disclosed.

  On the other hand, as a technique related to the present application, in Patent Document 2, when a plurality of signs are provided on a dial, the dial is arranged in a predetermined direction and photographed. Based on the photographing data, By identifying and storing the position, the position of the sign can be set and registered easily and accurately regardless of the difference in the design of the dial, and the pointer can be moved to the appropriate sign position according to the operating state or numerical value. A technique for enabling the above is disclosed.

Japanese Patent Laid-Open No. 10-300869 JP 2010-1112914 A

  However, in the conventional technique, if a device for detecting the position of the pointer is provided in a small pointer-type display device, there is a problem that the pointer-type display device is enlarged and the internal structure is complicated.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a pointer position correcting method, a pointer position correcting system, and a pointer that can easily detect and correct a deviation of the pointer position without increasing the size of the pointer type display device or complicating the internal structure. It is in providing a type | formula display apparatus.

In order to achieve the above object, the present invention
A pointer position correcting method for detecting and correcting a positional deviation of a plurality of pointers provided to be rotatable with respect to a display board,
An imaging step of imaging the state where the plurality of hands are arranged at different predetermined control positions ,
A pointer position identifying step of performing recognition processing of the captured image to detect the display board and the plurality of hands, and identifying positions of the plurality of hands with respect to the display board;
It is characterized in that it comprises a data correction step for correcting, based on the positions of the plurality of guidance the predetermined control position is the identification of the plurality of guidance that is counted on the basis of the operation control of the plurality of guidance.

  According to the present invention, there is an effect that the displacement of the pointer position in the pointer type display device can be easily detected and corrected without increasing the size of the pointer type display device or complicating the internal structure.

It is a figure showing the whole pointer position correction system composition of an embodiment of the present invention. It is a block diagram which shows the internal structure of an electronic timepiece. It is a block diagram which shows the internal structure of a smart phone. It is a sequence diagram explaining the flow of the operation | movement of the electronic timepiece and smart phone, and the exchange of data in the pointer position correction system of 1st Embodiment. It is a figure which shows the example of the specific position for detecting a pointer with an electronic timepiece. It is a flowchart which shows the control procedure of the shift | offset | difference correction process performed with the smart phone of 1st Embodiment. It is a flowchart which shows the control procedure of the deviation correction process performed in the electronic timepiece of 1st Embodiment. It is a sequence diagram explaining the flow of the operation | movement of an electronic timepiece and a smart phone, and the exchange of data in the pointer position correction system of 2nd Embodiment. It is a flowchart which shows the control procedure of the deviation correction process performed with the smart phone of 2nd Embodiment. It is a flowchart which shows the control procedure of a needle | hook detection process. It is a flowchart which shows the control procedure of the deviation correction process performed with the electronic timepiece of 2nd Embodiment. It is a flowchart which shows the control procedure of a pointer position change process.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
First, the pointer position correction system of the first embodiment will be described.
FIG. 1 is a diagram for explaining the overall configuration of the pointer position correcting system 1 of the present embodiment.

  This pointer position correction system 1 includes an electronic timepiece 40 as a pointer-type display device, and a smartphone 10 as an imaging device and an external device. Wireless communication by Bluetooth (registered trademark) can be performed between the electronic timepiece 40 and the smartphone 10.

FIG. 2 is a block diagram showing the internal configuration of the electronic timepiece 40.
The electronic timepiece 40 has a display surface in which an analog display unit 60 (display means, see FIG. 5) using a pointer and a digital display unit 45 using a digital display screen are provided, and the user can use a band. It is a wristwatch type that can be worn on the arm. The electronic timepiece 40 includes a CPU (Central Processing Unit) 41 (control means), a ROM (Read Only Memory) 42, a RAM (Random Access Memory) 43, a timer circuit 44, a digital display unit 45, and a display driver 46 thereof. An operation unit 47, a motor drive circuit 48, a Bluetooth module 54 and its antenna AN4, a UART (Universal Asynchronous Receiver / Transmitter) 55, a second hand 61, a stepping motor 51 for rotating this, a minute hand 62a and an hour hand 62b, a stepping motor 52 that rotates these, a date wheel 63, a stepping motor 53 that rotates the date wheel 63, a bus 49, and the like.

  The CPU 41 performs various arithmetic processes and controls the overall operation of the electronic timepiece 40. The CPU 41 reads various programs related to the operation of the electronic timepiece 40 from the ROM 42 and executes them.

The ROM 42 stores various control programs and initial setting data related to the operation of the electronic timepiece 40. This control program includes a deviation correction program 421 for correcting the positional deviation of the pointer.
The RAM 43 provides a working memory space to the CPU 41 and stores temporary data. The temporary data stored in the RAM 43 includes a pointer position storage unit 431 that stores the current pointer position (control position) based on the pointer control operation.

  The timer circuit 44 is a counter that holds the current time by counting a predetermined frequency signal input from an oscillation circuit (not shown) and adding it to the initial time data. Alternatively, the current time counted by software under the control of the CPU 41 and RTC (Real Time Clock) may be stored in the time measuring circuit 44.

  The digital display unit 45 includes a display screen, for example, an LCD (Liquid Crystal Display), and displays an operation mode and various setting menus of the electronic timepiece 40 in accordance with a drive signal from the display driver 46. The display screen of the digital display unit 45 is not particularly limited, but can be displayed in a dot matrix format, and is provided so as to occupy a part of the dial 64 (display plate). The display driver 46 is a liquid crystal driver that drives the LCD of the digital display unit 45. When the display screen is based on another method, the display driver 46 is provided with a driver selected according to the method.

  The operation unit 47 has a mechanism for receiving an input from the outside, for example, a push button switch crown, generates an electrical signal corresponding to the input operation by the user, and outputs it to the CPU 41 as an input signal.

  Based on a control signal from the CPU 41, the motor drive circuit 48 steps a drive signal for rotating the second hand 61, the minute hand 62a, the hour hand 62b, and the date indicator 63 (hereinafter also collectively referred to as hands 61 to 63). Output to the motors 51 to 53 at an appropriate timing, length and voltage.

  The stepping motors 51 to 53 are rotationally driven by a predetermined angle (for example, 180 degrees) according to a drive signal from the motor drive circuit 48, and rotate the gears to which the hands 61 to 63 are respectively joined by a predetermined angle. Here, for example, the stepping motors 51 to 53 rotate the second hand 61 by 6 degrees, the minute hand 62a by 1 degree, and the date wheel 63 by 360 / (31 × 170) degrees.

  In the electronic timepiece 40 of this embodiment, the minute hand 62a and the hour hand 62b (interlocking hand) rotate in conjunction with the hour hand 62b at a ratio of 1/12 with respect to the rotational speed of the minute hand 62a. The hour hand 62b, the minute hand 62a, and the second hand 61 are not particularly limited, but are all arranged so as to perform a rotation operation with the same position at the approximate center of the dial 64 as a rotation axis. The date wheel 63 rotates around the same rotation axis as the second hand 61 and the like, and the date for one day can be selectively exposed from the small window 64a provided in the 3 o'clock direction of the dial 64. Has been.

The Bluetooth module 54 is a control module for performing Bluetooth communication with an external device such as the smartphone 10 via the antenna AN4. Transmission data sent from the CPU 41 is subjected to processing such as serial / parallel conversion by the UART 55 and is sent from the Bluetooth module 54 to an external device. Also, the received data received by the antenna AN4 and the Bluetooth module 54 is subjected to processing such as serial / parallel conversion by the UART 55 and is output to the CPU 41.
The Bluetooth module 54 and the antenna AN4 constitute a communication means.

  The CPU 41 and each unit of the present embodiment are driven by power supplied from a power supply unit (not shown). As the battery of the power supply unit, a battery that is small and light and that can stably supply power over a long period of time is desirable. For example, a small disk-shaped button-type primary battery is used. Or what combined the solar power generation part and the secondary battery is used for a battery, or may be used together with a primary battery.

FIG. 3 is a block diagram showing an internal configuration of the smartphone 10.
The smartphone 10 includes a CPU 11 (pointer position identification means), a ROM 12, a RAM 13, a storage unit 14, a built-in clock 15, an operation unit 16, a display unit 17 and its driver 18, a speaker 19, and a microphone 20. The codec 21, the RF transceiver circuit 22, the antenna AN11 for transmitting / receiving RF communication radio waves, the communication circuit 23, the Bluetooth module 24, the UART 25, the antenna AN12 for transmitting / receiving Bluetooth communication radio waves, the vibration motor 26, and the like The driver 27, the camera 28 (photographing means), the driver 29, a bus 30 and the like are provided.

  The CPU 11 performs various arithmetic processes and performs overall control of the overall operation of the smartphone 10. Further, the CPU 11 identifies the positions of the hands 61 to 63 by image recognition from the image data of the display surface of the electronic timepiece 40 photographed by the camera 28 by the shift correction program 141, and transmits and receives data to and from the electronic timepiece 40. Processing for correcting the shift of the pointer position of the timepiece 40 is performed.

The ROM 12 stores various programs executed by the CPU 11 and initial setting data. The ROM 12 may be a rewritable nonvolatile memory.
The RAM 13 is a volatile memory that provides a work memory space to the CPU 11 and stores temporary work data.

  The storage unit 14 is a readable / writable nonvolatile memory, such as a flash memory or an EEPROM (Electrically Erasable and Programmable Read Only Memory). The storage unit 14 stores a deviation correction program 141. The CPU 11 reads out and executes this deviation correction program 141 and operates it in parallel with the deviation correction program 141 of the electronic timepiece 40 to detect the deviation of the hand position of the electronic timepiece 40 and correct this deviation.

  The built-in clock 15 is a counter that counts and holds the current time. In the smartphone 10, the current time is read and displayed on the display unit 17. Further, the present time data and the set time data related to various functions are compared, and various operations are performed. The current time data of the built-in clock 15 is corrected by time data acquired from the base station at any time during communication with the mobile phone base station by the RF transceiver circuit 22.

  The display unit 17 includes, for example, an LCD (liquid crystal display). A driver 18 (liquid crystal driver) that operates in response to a control signal sent from the CPU 11 drives the LCD to display various functions of the smartphone 10. The display unit 17 may include a display screen of another display method, for example, an organic ELD (Electro-Luminescent Display), and the driver 18 is appropriately selected according to the display method of the display screen.

  The operation unit 16 includes a touch sensor, detects a user's touch operation position and operation content on the LCD screen of the display unit 17, generates an electrical signal corresponding to the operation, and outputs the electrical signal as an input signal to the CPU 11. . The operation unit 16 may further include one or a plurality of operation keys and switches, and may output an input signal to the CPU 11 based on an operation performed by the user on the operation keys and switches.

  The speaker 19 converts an electrical signal into an audio signal based on a signal from the codec 21 and outputs audio. The microphone 20 detects sound waves, converts them into electric signals, and outputs them to the codec 21. The codec 21 decodes the encoded and compressed digital audio signal and sends it as an analog signal to the speaker 19, and encodes the audio signal acquired from the microphone 20 and outputs it to the CPU 11 and the communication circuit 23. In addition, it is good also as providing separately the speaker for telephone calls, and the speaker for outputting other alerting sound etc. outside.

  The RF transmission / reception circuit 22 performs transmission / reception processing of telephone communication data and mail communication data performed with a communication base station of a mobile phone using an antenna AN11 for transmission / reception of RF communication. The communication circuit 23 performs various processes related to transmission / reception data transmitted / received by the RF transmission / reception circuit 22, and exchanges data with the CPU 11 and the codec 21.

The Bluetooth module 24 is a control module for performing Bluetooth communication with an external device such as the electronic timepiece 40 via the antenna AN12. The transmission data sent from the CPU 11 is subjected to processing such as serial / parallel conversion by the UART 25 and is sent from the Bluetooth module 24 to the external device. The received data received from the external device using the Bluetooth module 24 is subjected to processing such as parallel / serial conversion by the UART 25 and is output to the CPU 11.
The Bluetooth module 24 and the antenna AN12 constitute external communication means.

  The vibration motor 26 is for informing the user by generating vibration. When a control signal is sent from the CPU 11 to the driver 27, the driver 27 converts it into a voltage signal necessary for operating the vibration motor 26 and outputs it. For example, a rotary motor is used as the vibration motor 26.

  The camera 28 captures an image in a predetermined direction based on an input operation to the operation unit 16. The camera 28 includes a lens that collects light from the outside and makes it incident, and an exposure unit that detects the incident light. The lens includes an autofocus mechanism that appropriately adjusts the focal position according to the distance to the subject, and a zoom mechanism that can change an incident angle within a predetermined range based on a user operation. The exposure unit is, for example, a CCD (Charge Coupled Device) or a CMOS sensor, and acquires the amount of incident light at each pixel position with a resolution corresponding to the number of these arrays.

  The driver 29 is a drive circuit for the camera 28, controls the shooting timing, exposure time, zoom magnification, aperture, etc. in accordance with a control signal from the CPU 11, and takes the shot image data as data of a predetermined format. The data is output to the RAM 13 or the storage unit 14. The output of this data can be performed without going through the CPU 11 by DMA (Direct Memory Access).

For example, a rechargeable lithium ion battery is used as the power source of the smartphone 10.
The RF transmission / reception circuit 22, the Bluetooth module 24, and the camera 28 can be individually controlled to turn on / off the power supply separately from the power operation of the entire smartphone 10.

Next, an operation related to correction of the positional deviation of the pointer in the pointer position correcting system 1 of the present embodiment will be described.
FIG. 4 is a sequence diagram for explaining the operation of the electronic timepiece 40 and the smartphone 10 and the flow of data exchange in the pointer position correction system 1 of the present embodiment.

  In this pointer position correction system 1, an image of the display surface of the electronic timepiece 40 photographed by the smartphone 10 is used for detecting the pointer position deviation. The correction process of the pointer position deviation is first started on the smartphone 10 side, then notified to the electronic timepiece 40, and the processing is started on the electronic timepiece 40.

  In the electronic timepiece 40, the normal hand movement is stopped, and the hands 61 to 63 are moved to a specific position (predetermined control position) for identifying the hand position. The smartphone 10 captures the display surface of the electronic timepiece 40 in a display state in which the hands 61 to 63 should be at the specific position, and identifies the positions of the hands 61 to 62 and the display content of the date wheel 63 by image recognition. The identified result is sent to the electronic timepiece 40. When the electronic timepiece 40 has a deviation from the information on the specific position held in the pointer position storage unit 431, the position of the pointer of the electronic timepiece 40 is equivalent to the deviation. By correcting the information, the misalignment is eliminated.

FIG. 5 is a diagram illustrating an example of a specific position where the hands 61 to 63 are moved in the electronic timepiece 40.
Here, the display of the digital display unit 45 is omitted.
For example, the specific positions of the hands 61 to 63 in the analog display unit 60 preferably satisfy the following conditions. (1) The indicated positions of the pointers 61 to 63 are greatly separated, (2) the position coincides with the scales and signs provided on the dial 64, and (3) a part or all of The positional relationship (predetermined angle difference) between the hands (for example, hour hand 62b and minute hand 62a) is characteristic (for example, 180 degree difference).
In addition, the date displayed by the date wheel 63 is preferably a number (for example, “1”) that is easy to identify. Here, for example, 6:00 is displayed by the hour hand 62b and the minute hand 62a, the second hand 61 indicates 45 seconds, and the date wheel 63 indicates one day.

FIG. 6 is a flowchart showing a control procedure by the CPU 11 of the deviation correction process executed by the smartphone 10 of the present embodiment.
This deviation correction process is manually called and executed by an input operation by the user, for example.

  When the deviation correction process is started, first, the CPU 11 transmits a notification that the deviation correction process is started to the electronic timepiece 40 (step S101). The CPU 11 waits for a response from the electronic timepiece 40 and receives information related to the arrangement of the hands 61 to 63 (step S102). This arrangement information includes, for example, a point that the minute hand 62a and the hour hand 62b are arranged in directions opposite to each other by 180 degrees, and the second hand 61 is arranged at a position 90 degrees behind the hour hand 62b. The arrangement information can also include information such as the fact that the small exposure window of the date wheel 63 is at the 3 o'clock position and the presence / absence of a scale in units of one minute.

  The CPU 11 activates the camera 28 and displays a display requesting the user to shoot the display surface of the electronic timepiece 40 on the display unit 17 when the camera 28 is ready to shoot (step S103). At this time, the CPU 11 may display the size of the electronic timepiece 40, a guide line indicating the 12 o'clock direction, and the like, in addition to simply causing the display unit 17 to display a preview of the visual field range related to shooting.

The CPU 11 waits for a shooting operation by the user and determines whether or not a shooting operation has been performed (step S104, shooting step). When it is determined that the photographing operation is not performed (“NO” in step S104), the CPU 11 repeats the process of step S104. When it is determined that the photographing operation has been performed (“YES” in step S104), the CPU 11 acquires the photographed image, performs the contour recognition processing of this image, and performs the second hand 61, the minute hand 62a, and the hour hand 62b. The display position of the date indicator 63 is identified (step S105, pointer position identification step). Various known methods can be used for this recognition process. At this time, the CPU 11 can simplify the process related to identification using the above-described arrangement information. Moreover, the shape of the pointer, the sign, and the scale of the electronic timepiece 40 that has been identified in the past may be stored in the storage unit 14 and used for the recognition process. Furthermore, before performing the recognition process, it is possible to make the recognition process easier by performing simple image processing such as binarization and color reduction of the image data.
If the pointer position cannot be identified because of a mismatch in focus, a positional relationship between the smartphone 10 and the electronic timepiece 40, or a lack of light amount, the CPU 11 returns the process to step S103, for the reason described above. It is good also as making a user image | photograph again while showing.

  The CPU 11 transmits the display positions of the identified second hand 61, minute hand 62a, hour hand 62b, and date wheel 63 to the electronic timepiece 40 (step S106). Then, the CPU 11 waits for a response from the electronic timepiece 40 and acquires a notification indicating the end of the processing relating to the deviation correction from the electronic timepiece 40 (step S107), and ends the deviation correction processing.

FIG. 7 is a flowchart showing a control procedure by the CPU 41 of the deviation correction process executed in the electronic timepiece 40 of the present embodiment.
This shift correction process is called and executed when the CPU 11 detects a notification to start the shift correction process from the smartphone 10.

  When the deviation correction processing is started, the CPU 41 stops the normal operation of the hands 61 to 63, outputs a control signal to the motor drive circuit 48, and moves these hands 61 to 63 to a predetermined specific position. (Step S401). This specific position does not necessarily have to be one, and a position that can be reached in a relatively short time is selected from the positions indicated by the hands 61 to 63 at the start of the deviation correction process among a plurality of candidates. Can be determined.

  CPU41 transmits the information which concerns on arrangement | positioning of the hands 61-63 to the smart phone 10 (step S402). Then, the CPU 41 waits for input of a signal from the smartphone 10.

  CPU41 receives and acquires the positional information on the hands 61-63 transmitted by the process of step S106 from the smart phone 10 (step S403). The CPU 41 overwrites and updates the position information stored in the pointer position storage unit 431 with the received position information (step S404, data correction step). Further, the CPU 41 may correct the position information stored in the pointer position storage unit 431 by moving the hands 61 to 63 to the correct specific position based on the received position information.

  Then, the CPU 41 transmits a notification indicating the end of the deviation correction process to the smartphone 10 (step S405), returns the hands 61 to 63 to the position related to the normal display (step S406), and ends the deviation correction process.

As described above, in the pointer position correction system 1 according to the first embodiment, the pointer position correction that detects and corrects the displacement of the hands 61 to 63 that are rotatably provided to the dial 64 in the electronic timepiece 40. The position of the pointer is corrected by the method. In this pointer position correcting method, a shooting step of shooting a predetermined display state by the hands 61 to 63 by the camera 28 of the smartphone 10, the dial 64 and the hands 61 to 63 are detected from the shot images, and the hands 61 to 63 are detected. Pointer position identification step for identifying the position with respect to the dial 64, the control positions of these pointers 61 to 63 counted based on the operation control of the pointers 61 to 63 and stored in the pointer position storage unit 431, the identified pointers A data correction step of correcting based on the positions of 61-63.
That is, the position of the pointers 61 to 63 is corrected by detecting the position of the pointer based on the image taken by the camera 28 of the smartphone 10 that is an external device and comparing the detected pointer position with the control position. Even if the electronic timepiece 40 itself does not have a configuration relating to the detection of the pointer position, it is possible to detect and correct the positional deviation of all the pointers. Therefore, it is not necessary to increase the size or the structure of the electronic timepiece 40 with the configuration relating to the detection of the pointer position.

  The hands 61 to 63 are configured to include a plurality of hands 61, 62a, and 63 that are independently driven. In the photographing step, the hands 61, 62a, and 63 are arranged at predetermined control positions. Done in Accordingly, it is possible to select an appropriate pointer position and perform image shooting and identification of the pointer position without worrying about acquiring a captured image at a position where it is difficult to determine the pointer according to the time of shooting and the operation state. .

  Further, as the predetermined control position, at least a part (second hand 61, minute hand 62a) of the hands 61, 62a, 63 is determined so as to coincide with the scale in 1 second increments provided on the dial 64. When identifying the position, the relative relationship with the scale position can be detected more easily.

  In addition, the minute hand 62a and the hour hand 62b are rotated in conjunction with each other, and after the minute hand 62a and the hour hand 62b are moved to a predetermined control position such that the minute hand 62a and the hour hand 62b are opposite to each other by 180 degrees, photographing by the camera 28 is performed. The actual position information can be acquired by easily identifying the positions of the two hands.

  The pointer position identifying step identifies the position of the pointer based on information relating to the predetermined control position. That is, the position of each pointer can be detected and identified more easily and simply using the arrangement order or positional relationship of a plurality of pointers. Accordingly, it is possible to reduce the processing related to the identification of the pointer position to reduce the required time and power consumption, and to reduce the possibility of failure in detecting the pointer.

The pointer position correction system 1 according to the present embodiment includes an electronic timepiece 40 and a smartphone 10. The electronic timepiece 40 includes a dial 64 and an analog display unit 60 that is provided so as to be rotatable with respect to the dial 64 and includes hands 61 to 63 that display contents corresponding to positions on the dial 64. The CPU 41 controls the rotational operation of the hands 61 to 63 and moves the hands 61 to 63 to a position corresponding to the display content, the Bluetooth module 54 that communicates with the smartphone 10, and the antenna AN4. Further, the smartphone 10 detects the pointers 61 to 63 and the dial 64 from the camera 28 that captures a predetermined display state by the analog display unit 60 of the electronic timepiece 40, and the captured display state image, and the detected pointer CPU11 which identifies the position with respect to the dial 64 of 61-63, the Bluetooth module 24 for communicating with the electronic timepiece 40, and antenna AN12 are provided.
The electronic timepiece 40 communicates with the Bluetooth module 24 of the smartphone 10 by the Bluetooth module 54 to acquire the positions of the hands 61 to 63 identified by the smartphone 10, and the electronic timepiece 40 is operated by the operation of the CPU 41. The position information of the pointers 61 to 63 in the display state at the time of shooting, which is counted based on the operation control of 61 to 63 and stored in the pointer position storage unit 431, is corrected based on the position of the pointer acquired from the smartphone 10. .
With such a configuration, the electronic timepiece 40 is not provided with a configuration for detecting the position of the pointer, that is, the position of the pointer is not changed without increasing the size of the electronic timepiece 40 or complicating the structure. Can be detected and corrected.

  The electronic timepiece 40 has the camera 28 and the CPU 11 capable of recognizing the image of the pointer position, and easily corrects the position displacement of the pointer in combination with an external device capable of Bluetooth communication. Therefore, it is not necessary to have a configuration for detecting the hand position by itself, the electronic timepiece 40 is not enlarged, the structure is not complicated, and the smartphone 10 can be used as a general purpose device even if it is not a dedicated external device. The displacement of the hands 61 to 63 can be easily corrected using the electronic apparatus.

[Second Embodiment]
Next, the pointer position correction system according to the second embodiment will be described.
The overall configuration of the pointer position correction system 1 of the second embodiment, and the internal configuration of the electronic timepiece 40 and the smartphone 10 constituting the pointer position correction system 1 are all the same as the pointer position correction system 1 of the first embodiment. Yes, the description is omitted because the same reference numerals are used.

Next, an operation related to correction of the positional deviation of the pointer in the pointer position correcting system 1 of the second embodiment will be described.
FIG. 8 is a sequence diagram for explaining the operation of the electronic timepiece 40 and the smartphone 10 and the flow of data exchange in the pointer position correction system 1 of the present embodiment.

  In the pointer position correction system 1 of the present embodiment, the electronic timepiece 40 receives the notification related to the start of deviation correction from the smartphone 10 and stops the operation of the hands 61 to 63 and relates to the stop positions of these hands 61 to 63. The placement information is transmitted to the smartphone 10. At this time, normally, the hands 61 to 63 may be stopped at the current position. However, for example, when the hour hand 62b is at a position away from a position that can be set as a specific position (scheduled detection position) such as a position overlapping the position of the small window 64a where the date wheel 63 is exposed, It can be stopped after fast-forwarding to a position past the position 64a (3 o'clock direction).

In the smartphone 10, the specific positions of the hands 61 to 63 are determined based on the stop position information. Subsequently, the hands 61 to 63 are sequentially selected as the guides for deviation correction, and this deviation is detected in the electronic timepiece 40 until the pointer for deviation correction is detected at the specific position based on the image data captured by the camera 28. The correction target pointer is moved in order by predetermined steps.
Here, as the predetermined number of steps, when the deviation correction target is the second hand 61 and the minute hand 62a, one step is set. If the position of only the hour hand 62b is different when the minute hand 62a is detected, the predetermined number of steps related to the movement of the minute hand 62a and the hour hand 62b is set to 360 steps. Further, when the deviation correction target is the date wheel 63, it is not necessary to perform exact alignment. For example, the predetermined number of steps may be set to 34 steps (1/5 of the deviation for one day). I can do it.

When the pointer for deviation correction is detected, the specific position information is sent from the smartphone 10 to the electronic timepiece 40. The electronic timepiece 40 changes and sets the current position of the displacement correction target pointer to the specific position.
It should be noted that the specific positions of the hands 61 to 63 are not limited to the case where the specific positions are determined when starting the specification of each pointer. The specific positions may be determined all together when the stop position information of the pointer is acquired.

  FIG. 9 is a flowchart showing a control procedure by the CPU 11 of the deviation correction process executed by the smartphone 10 of the present embodiment.

This deviation correction process is called and executed by a start operation by the user, for example.
When the shift correction process is started, the CPU 11 transmits a notification regarding the start of shift correction to the electronic timepiece 40 (step S141). The CPU 11 waits for a reply from the electronic timepiece 40 and receives information related to the stop positions of the hands 61 to 63 from the electronic timepiece 40 (step S142).

  The CPU 11 sets the pointer for which the deviation is to be corrected to the second hand 61 (step S143), and executes a pointer detection process described later on the second hand 61 (step S144). Next, the CPU 11 sets the pointers to be corrected for the minute hand 62a and the hour hand 62b (step S145), and executes the pointer detection process for the minute hand 62a and the hour hand 62b (step S146). The CPU 11 sets the indicator for displacement correction to the date wheel 63 (step S147), and executes the pointer detection process for the date wheel 63 (step S148).

  Finally, when the CPU 11 receives a notification indicating the end of deviation correction from the electronic timepiece 40 (step S149), the deviation correction process is terminated.

  FIG. 10 is a flowchart showing a control procedure by the CPU 11 of the pointer detection process called up in the above-described deviation correction process.

When the pointer detection process is called, the CPU 11 first determines a specific position of the pointer to be corrected (step S201). Then, the CPU 11 waits for the user's input operation and, when detecting the shooting start operation by the camera 28, sends a control signal to the driver 29 of the camera 28 to start continuous shooting of the display surface of the electronic timepiece 40 (step S202). .
Here, continuous shooting means that a plurality of images are obtained in time series without the need to detect an input operation related to a shooting command by the user every time. This includes the case where shooting is automatically performed every time a preparation completion notification is received.

  The CPU 11 waits for communication from the electronic timepiece 40 and determines whether or not a notification indicating completion of preparation has been received (step S203). If it is determined that a notification indicating completion of preparation has not been received (“NO” in step S203), the CPU 11 repeats the process of step S203.

  If it is determined that a notification indicating the completion of preparation has been received (“YES” in step S203), the CPU 11 determines the shift at the specific position based on the image data captured after receiving the notification indicating the completion of preparation. The presence / absence of a pointer to be corrected is detected (step S204). The CPU 11 determines whether or not this pointer has been detected at the specific position (step S205). If it is determined that it has not been detected (“NO” in step S205), the CPU 41 transmits “NG” to the electronic timepiece 40 (step S206). Then, the process of the CPU 41 returns to step S203.

  When it is determined that the deviation correction target pointer has been detected at the specific position (“YES” in step S205), the CPU 11 transmits “OK” to the electronic timepiece 40 (step S211). Further, the CPU 11 ends the continuous shooting by the camera 28 (step S212). The CPU 11 transmits information on the specific position where the pointer for deviation correction is detected to the electronic timepiece 40 (step S213). Thereafter, the CPU 11 ends the pointer detection process and returns the process to the deviation correction process.

FIG. 11 is a flowchart showing a control procedure by the CPU 41 of the deviation correction processing executed in the electronic timepiece 40 of this embodiment.
This deviation correction process is started when the CPU 41 detects a deviation correction process start notification transmitted from the smartphone 10.

When the deviation correction process is started, the CPU 41 determines a position for stopping the hands 61 to 63 based on the current hand position (step S441). The CPU 41 determines whether or not the determined stop position is different from the current pointer position (step S442). If it is determined that the stop position is different ("YES" in step S442), the CPU 41 stops the pointers 61 to 63. Fast forward to the position (step S443). Then, the CPU 41 stops the hands 61 to 63 (step S444). If it is determined that the determined stop position is not different from the current pointer position (same) (“NO” in step S442), the CPU 41 stops the hands 61 to 63 (step S444).
CPU41 transmits the information which concerns on the stop position of a needle | hook to the smart phone 10 (step S445).

  The CPU 41 sets the object of deviation correction to the second hand 61 (step S446). Then, the CPU 41 calls and executes a pointer position changing process described later with respect to the second hand 61 (step S447). Next, the CPU 41 sets the displacement correction target to the minute hand 62a and the hour hand 62b (step S448), and executes the pointer position changing process for the minute hand 62a and the hour hand 62b (step S449). The CPU 41 sets the target of the deviation correction process to the date wheel 63 (step S450), and executes the pointer position change process for the date wheel 63 (step S451).

  CPU41 transmits the notification which shows that the deviation correction process was complete | finished with respect to the smart phone 10 (step S452). The CPU 41 returns the hands 61 to 63 to an appropriate position according to the original display state (step S453), and ends the deviation correction process.

FIG. 12 is a flowchart showing a control procedure by the CPU 41 of the pointer position changing process that is called and executed in the deviation correction process of the electronic timepiece 40.
This pointer position change process is a process called in parallel with the pointer detection process called in the deviation correction process of the smartphone 10.

  When the pointer position changing process is started, the CPU 41 first transmits a notification regarding the completion of preparation to the smartphone 10 (step S501). The CPU 41 waits for the detection result of the pointer for deviation correction from the smartphone 10, and when the detection result transmitted in the process of step S206 or step S211 (see FIG. 10) is received, has the pointer been detected at the specific position? It is determined whether or not (step S502). If it is determined that it has not been detected (“NG” in step S502), the CPU 41 moves the pointer forward by the predetermined step (step S503). Thereafter, the processing of the CPU 41 returns to step S501.

  When it is determined that the pointer for deviation correction is detected at the specific position (“OK” in step S502), the CPU 41 waits for an input from the smartphone 10 and is transmitted from the smartphone 10 in the process of step S213. (See FIG. 10) The specific position information is received (step S511). The CPU 41 overwrites and updates the pointer position data in the pointer position storage unit 431 with the received data of the specific position (step S512). Then, the CPU 41 exits the pointer position change process and returns to the deviation correction process.

  As described above, in the pointer position correcting system 1 according to the second embodiment, it is determined only by determining whether or not the hands 61 to 63 are at a specific position set in advance with respect to the dial 64 based on the photographing data. If the pointer is not detected at the position, the shooting is repeated while sequentially moving the pointer until the pointer is detected. That is, once the arrangement of the entire dial 64 is detected, it is not necessary to perform processing related to image recognition on the entire captured image every time, and when the pointer is found not at a specific position, There is no need to complete the image recognition processing related to the image data. Accordingly, the processing can be reduced.

  Further, in the pointer position correcting system 1 of the second embodiment, the initial positions at which the detection of the hands 61 to 63 and the dial 64 can be adjusted can be adjusted. Therefore, for example, when the hour hand 62b overlaps with another pointer, the small window 64a, etc., by shifting in advance at a fast speed in advance, the number of repetitions of processing relating to photographing and detection can be reduced, and the load on the CPU 11 and the processing time can be reduced. Reduction can be achieved.

  In addition, it is necessary to retract the pointer after detecting one pointer by setting the specific positions of the plurality of independently driven pointers 61, 62a, and 62b to positions where they can be detected separately. There is no.

  Moreover, since the smart phone 10 acquires the first stop position of the some hands 61-63 from the electronic timepiece 40, and determines the specific position of the hands 61-63 based on the stop position, these hands 61-63. In addition, it is possible to appropriately select a position where the hands 61 to 63 can be detected by shooting and detecting a small number of times from the stop position, and the processing load and processing time can be reduced.

The present invention is not limited to the above-described embodiment, and various modifications can be made.
For example, in the above embodiment, only the pointer having the rotation axis at the same position and the date wheel 63 have been described. However, the pointers at different rotation axis positions that rotate within the small window on the dial are similarly corrected for deviation. Can be done. In this case, the small window direction can be removed from the specific position of the pointer. The present invention can also be applied to a case where there is only one pointer.

  Moreover, in the said embodiment, although imaging | photography and pointer | guide detection were performed using the smart phone 10, another external apparatus, for example, a mobile telephone etc., may be used. The external device may be a combination such as a computer terminal such as a PC to which a portable camera is attached.

  In the above embodiment, an electronic wristwatch using both an analog display and a digital display has been described as an example. However, only an analog display may be used, and the present invention is not limited to a wristwatch and may be used for a pocket watch or a small portable watch. The invention may be applied.

  In the above embodiment, the specific position information is transmitted to the electronic timepiece 40 after the pointer detection is performed by the smartphone 10, but the captured image data is transmitted to the electronic timepiece 40 to detect the pointer. 40 may be used. In this case, it is possible to transmit the image after performing image processing on the smartphone 10 so as not to increase the load on the electronic timepiece 40, or to transmit the image by omitting all unnecessary images and information.

  In the above embodiment, the contour identification process is performed. However, if it is clear that the pointer, scale, and dial color can be easily distinguished with a contrasting color or the like, Further, after performing simple image processing such as binarization processing or color reduction processing, the contour may be identified and the pointer position may be identified.

  In the second embodiment, the pointers are identified one by one in order. However, for the independently operated pointers, all or part of the pointers are detected at a specific position while moving the needles by a predetermined step in parallel. It is also possible to terminate the hand movement and detection of the pointer when it is detected.

  In addition, when performing the specification of each pointer one by one in order, by moving the detection target pointer from the specific position after detection at the specific position, even if the specific position of each pointer overlaps, The pointer can be detected.

  Further, in the second embodiment, the movement is sequentially performed only in the forward rotation direction until the pointer is detected. However, the movement may be performed in the reverse rotation direction, or when it is not detected within the predetermined number of steps, The detection may be performed before and after the first pointer position by changing from the normal rotation direction to the reverse rotation direction.

In the above description, an example in which the storage unit 14 and the ROM 42 such as a flash memory and an EEPROM are used as the computer-readable medium of the deviation correction programs 141 and 421 according to the present invention is disclosed, but the present invention is not limited to this. As other computer-readable media, other non-volatile memories, SSDs (Solid State Drives), HDDs (Hard Disk Drives), and portable recording media such as CD-ROMs can be applied. A carrier wave is also applied to the present invention as a medium for providing program data according to the present invention via a communication line.
In addition, specific contents such as the configuration, processing arrangement, order, and numerical values shown in the above embodiment can be changed as appropriate without departing from the gist of the present invention.

Although several embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and equivalents thereof.
The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.

[Appendix]
<Claim 1>
A pointer position correcting method for detecting and correcting a position shift of a pointer provided rotatably with respect to a display board,
A shooting step of shooting a predetermined display state by the pointer;
A pointer position identifying step for detecting the display plate and the pointer from the captured image and identifying a position of the pointer with respect to the display plate;
A pointer position correcting method, comprising: a data correcting step of correcting the control position of the pointer counted based on the operation control of the pointer based on the position of the identified pointer.
<Claim 2>
The pointer is constituted by a plurality of independently driven,
The pointer position correcting method according to claim 1, wherein the photographing step is performed in a state where the plurality of hands are respectively arranged at predetermined control positions.
<Claim 3>
3. The pointer position correction according to claim 2, wherein the predetermined control position is determined so that at least a part of the plurality of pointers coincides with a predetermined scale or mark provided on the display board. Method.
<Claim 4>
At least some of the hands are interlocking hands that rotate in conjunction with each other,
The pointer position correction method according to claim 2 or 3, wherein the predetermined control position related to the interlocking pointer is determined to be arranged with a predetermined angle difference.
<Claim 5>
5. The pointer position correcting method according to claim 2, wherein the pointer position identifying step identifies the position of the pointer based on information related to the predetermined control position. 6.
<Claim 6>
The pointer position identification step determines whether or not the pointer is at a detection scheduled position set in advance with respect to the display board,
2. The pointer position correcting method according to claim 1, wherein the photographing step is repeatedly performed while sequentially operating the pointer until it is determined in the pointer position identifying step that the pointer is at the planned detection position. .
<Claim 7>
The pointer position correcting method according to claim 6, wherein the photographing step is started in a state where the pointer is arranged at the adjusted control position.
<Claim 8>
The pointer is constituted by a plurality of independently driven,
The pointer position correcting method according to claim 6 or 7, wherein the scheduled detection position is set to a position at which the plurality of pointers can be distinguished and detected.
<Claim 9>
The pointer position correction method according to any one of claims 6 to 8, wherein the scheduled detection position is determined based on the control position at the start of the imaging step.
<Claim 10>
A display means having a display plate and one or a plurality of pointers provided so as to be rotatable with respect to the display plate and displaying contents according to the position with respect to the display plate;
Control means for controlling the rotation operation of the pointer and moving the pointer to a position corresponding to the display content;
A communication means for communicating with an external device;
A pointer-type display device comprising:
Photographing means for photographing a predetermined display state by the display means;
A pointer position identifying means for detecting the pointer and the display plate from the captured image of the display state, and identifying a position of the detected pointer with respect to the display plate;
External communication means for communicating with the pointer-type display device;
An imaging device comprising:
Including
The communication means performs communication with the external communication means to acquire the position of the pointer identified by the pointer position identification means,
The control means corrects the control position of the pointer in the display state counted based on the operation control of the pointer based on the acquired position of the pointer.
<Claim 11>
A display means having a display plate and one or a plurality of pointers provided so as to be rotatable with respect to the display plate and displaying contents according to the position with respect to the display plate;
Control means for controlling the rotation operation of the pointer and moving the pointer to a position corresponding to the display content;
A communication means for communicating with an external device;
With
The communication unit acquires a position of the pointer with respect to the display plate, which is identified based on the shooting data, obtained from a predetermined display state by the display unit, from an external device,
The pointer-type display device, wherein the control means corrects the control position of the pointer in the display state counted based on the operation control of the pointer based on the acquired pointer position.

1 Pointer Position Correction System 10 Smartphone 11 CPU
12 ROM
13 RAM
14 Storage unit 141 Deviation correction program 15 Built-in clock 16 Operation unit 17 Display unit 18 Driver 19 Speaker 20 Microphone 21 Codec 22 RF transceiver circuit 23 Communication circuit 24 Bluetooth module 25 UART
26 Vibrating motor 27 Driver 28 Camera 29 Driver 30 Bus 40 Electronic clock 41 CPU
42 ROM
421 Deviation correction program 43 RAM
431 Pointer position storage unit 44 Timing circuit 45 Digital display unit 46 Display driver 47 Operation unit 48 Motor drive circuit 49 Bus 51 Stepping motor 52 Stepping motor 53 Stepping motor 54 Bluetooth module 55 UART
60 Analog display 61 Second hand 62a Minute hand 62b Hour hand 63 Date wheel 64 Dial 64a Small window AN11 Antenna AN12 Antenna AN4 Antenna

Claims (9)

A pointer position correcting method for detecting and correcting a positional deviation of a plurality of pointers provided to be rotatable with respect to a display board,
An imaging step of imaging the state where the plurality of hands are arranged at different predetermined control positions ,
A pointer position identifying step of performing recognition processing of the captured image to detect the display board and the plurality of hands, and identifying positions of the plurality of hands with respect to the display board;
Pointer position, characterized in that it comprises a data correction step for correcting, based on the positions of the plurality of guidance the predetermined control position is the identification of the plurality of guidance that is counted on the basis of the operation control of the plurality of guidance How to fix. 2. The pointer position correction according to claim 1, wherein the predetermined control position is determined so that at least a part of the plurality of pointers coincides with a predetermined scale or mark provided on the display board. Method. At least some of the plurality of hands are interlocking hands that rotate in conjunction with each other,
The pointer position correcting method according to claim 1 or 2, wherein the predetermined control position related to the interlocking pointer is determined to be arranged with a predetermined angle difference. A pointer position correcting method for detecting and correcting a position shift of a pointer provided rotatably with respect to a display board,
A shooting step of shooting a predetermined display state by the pointer;
A pointer position identifying step for detecting the display plate and the pointer from the captured image and identifying a position of the pointer with respect to the display plate;
A data correction step of correcting the control position of the pointer counted based on the operation control of the pointer based on the position of the identified pointer;
The pointer position identification step determines whether or not the pointer is at a detection scheduled position set in advance with respect to the display board,
The shooting position correcting method , wherein the shooting step is repeatedly performed while sequentially operating the pointer until it is determined in the pointer position identifying step that the pointer is at the detection-desired position. 5. The pointer position correcting method according to claim 4 , wherein the photographing step is started in a state where the pointer is arranged at the adjusted control position. The pointer is constituted by a plurality of independently driven,
The detection scheduled position, the pointer position correction method according to claim 4 or 5, wherein the, each of which is set to the possible locations to be detected to distinguish the plurality of guidance. The pointer position correcting method according to any one of claims 4 to 6 , wherein the scheduled detection position is determined based on the control position at the start of the photographing step. A display means having a display plate and one or a plurality of pointers provided so as to be rotatable with respect to the display plate and displaying contents according to the position with respect to the display plate;
And control means for moving to a position corresponding to the display contents the plurality of guidance by controlling the rotation of said plurality of pointer,
A communication means for communicating with an external device;
A pointer-type display device comprising:
Photographing means for photographing the state in which the plurality of hands by the display means are arranged at different predetermined control positions ;
Wherein performs recognition processing of the captured images to detect the plurality of guidance and the display panel, a pointer position identifying means for identifying a position relative to the panel of the plurality of guidance the detected,
External communication means for communicating with the pointer-type display device;
An imaging device comprising:
Including
The communication means performs communication with the external communication means to obtain the positions of the plurality of hands identified by the hand position identification means,
Said control means, said predetermined control positions of the plurality of previous SL plurality of guidance that is counted on the basis of the operation control of the pointer, characterized in that modified based on positions of the plurality of guidance the obtained Pointer position correction system. A display means having a display plate and one or a plurality of pointers provided so as to be rotatable with respect to the display plate and displaying contents according to the position with respect to the display plate;
And control means for moving to a position corresponding to the display contents the plurality of guidance by controlling the rotation of said plurality of pointer,
A communication means for communicating with an external device;
With
Said communication means, said display said plurality of state pointer is positioned to different predetermined control position is photographed by the unit, the display of the captured plurality of pointer identified performs recognition processing of the image Obtain the position relative to the board from an external device,
Said control means, said predetermined control position before Symbol plurality of guidance that is counted on the basis of the operation control of the plurality of pointer, pointer-type display, which comprises modified based on the obtained pointer position apparatus.

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