WO2014097680A1 - Electronic apparatus - Google Patents

Electronic apparatus Download PDF

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Publication number
WO2014097680A1
WO2014097680A1 PCT/JP2013/072719 JP2013072719W WO2014097680A1 WO 2014097680 A1 WO2014097680 A1 WO 2014097680A1 JP 2013072719 W JP2013072719 W JP 2013072719W WO 2014097680 A1 WO2014097680 A1 WO 2014097680A1
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WIPO (PCT)
Prior art keywords
electronic device
unit
information
detection unit
detection
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PCT/JP2013/072719
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French (fr)
Japanese (ja)
Inventor
将 上出
康之 元木
邦宏 桑野
哲平 奥山
武男 本橋
弥恵 上瀧
政一 関口
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株式会社ニコン
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Publication of WO2014097680A1 publication Critical patent/WO2014097680A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/38—Testing, calibrating, or compensating of compasses

Definitions

  • the present invention relates to an electronic device.
  • Patent Document 1 A portable electronic device is known (Patent Document 1).
  • the electronic device detects the predetermined physical quantity of the first device, and the first device caused by the first device when performing detection by the first detector.
  • An information detection unit that detects information related to a detection error of one detection unit, a communication unit that transmits information detected by the information detection unit to an external device and receives correction information from the external device, and a correction received by the communication unit And a correction unit that corrects the detection result of the first detection unit based on the information.
  • the information detection unit detects information relating to a change in the magnetic field as information related to a detection error of the first detection unit.
  • the first device is a movable mobile unit
  • the information detection unit is at least one of the position and orientation of the mobile unit. It is preferable to detect one.
  • the information detection unit displays information related to a detection error caused by the second device detachable from the electronic device. It is preferable to detect.
  • the first detection unit is detachable from the first device.
  • the first detection unit preferably includes a geomagnetic sensor.
  • the electronic device in the electronic device according to any one of the first to sixth aspects, includes a position detection unit that detects position information of the electronic device, and the communication unit includes a position detection unit in the external device. It is preferable to transmit the detected position information.
  • the communication unit receives correction information resulting from the position information from the external device.
  • the electronic device according to any one of the first to eighth aspects includes an imaging unit that images a subject.
  • the control unit that controls to prohibit transmission of information related to the detection error by the communication unit during imaging by the imaging unit or during shooting preparation It is preferable to provide.
  • the imaging unit includes an instruction unit that instructs at least one of imaging and shooting preparation, and the control unit is configured according to an instruction from the instruction unit. It is preferable to perform control so as to prohibit transmission of information related to the detection error by the communication unit.
  • the control unit transmits information related to the detection error by the communication unit when the electronic device is in the reproduction mode or the editing mode. It is preferable to control to prohibit.
  • the electronic device relates to a first detection unit that detects a predetermined physical quantity, a disturbance detection unit that detects information about disturbance to the first detection unit, and a disturbance detected by the disturbance detection unit.
  • a communication unit that transmits information to an external device and receives correction information that the external device outputs based on information related to the disturbance, and a detection result of the first detection unit is corrected based on the correction information received by the communication unit.
  • a correction unit in the electronic device according to the fourteenth aspect, includes a magnetic field generation unit that is movable and generates a magnetic field, and the disturbance detection unit is information related to a change in the magnetic field generated by the magnetic field generation unit.
  • the disturbance detection unit is configured to change the attitude of the magnetic field generation unit that has changed due to the movement based on the information about the change in the magnetic field generated by the magnetic field generation unit. It is preferable to detect it as information regarding disturbance.
  • the first detection unit is a geomagnetic sensor that detects the strength of geomagnetism as a physical quantity
  • the correction information is the geomagnetism. It is information regarding the offset of the sensor, and the correction unit preferably corrects the detection result of the geomagnetic sensor based on the offset.
  • the electronic device in the electronic device according to any one of the fourteenth to seventeenth aspects, includes a position information detection unit that detects information related to the position of the electronic device, and the communication unit includes the position information detection unit. It is preferable to transmit information related to the detected position to the external device and receive correction information output from the external device based on the information related to the disturbance detected by the disturbance detection unit and the information related to the position.
  • the electronic device according to any one of the fourteenth to eighteenth aspects includes an imaging unit that captures a subject image, and the communication unit is during imaging by the imaging unit or during imaging preparation. It is preferable not to transmit the information regarding the disturbance detected by the disturbance detection unit to the external device.
  • the processing load on the electronic device does not become excessive.
  • FIG. 1 is a schematic perspective view of a digital camera that is an example of an electronic apparatus according to an embodiment of the present invention. It is a rear view of the digital camera which is an example of the electronic device by one Embodiment of this invention.
  • FIG. 4 is a schematic cross-sectional view illustrating a cross section between A1 and A2 in FIG. 1 is a block diagram of a digital camera that is an example of an electronic apparatus according to an embodiment of the present invention.
  • FIG. 1 is a block diagram relating to a correction system including an electronic device according to an embodiment of the present invention and an external device that communicates with the electronic device.
  • a correction system 100 shown in FIG. 1 includes a digital camera 1 that is an electronic device according to an embodiment of the present invention, and a server 2.
  • the digital camera 1 photoelectrically converts an optical image formed by a lens unit 14 (to be described later) by an image sensor (not shown), and images such as color interpolation processing, gradation conversion processing, and white balance processing by an image processing unit (not shown).
  • a digital image is generated by performing processing.
  • a geomagnetic sensor 11 and a vari-angle monitor 12 are provided.
  • the geomagnetic sensor 11 includes two-axis and three-axis types.
  • the triaxial type geomagnetic sensor outputs an electrical signal corresponding to the earth's magnetic field, which is the earth's magnetic field, and is photographed by the lens unit 14. Is detected with a predetermined resolution (for example, 8 directions, 16 directions, etc.).
  • the geomagnetic sensor 11 In addition to the geomagnetism, the geomagnetic sensor 11 also detects a current flowing around the geomagnetic sensor 11 and a magnetic field formed by magnetic parts arranged around the geomagnetic sensor 11 as disturbances. In the geomagnetic sensor 11, a detection error occurs due to the influence of such disturbance. In order to remove a component related to a magnetic field other than geomagnetism from the output signal of the geomagnetic sensor 11, processing for setting an offset and correcting the output of the geomagnetic sensor 11 using the offset has been performed.
  • the vari-angle monitor 12 is a movable display device that displays digital images (still images / moving images), shooting conditions, orientations detected by the geomagnetic sensor 11, and the like, as described later. Can be changed. Conventionally, in digital cameras, display control based on the attitude of the vari-angle monitor is performed. Therefore, the vari-angle monitor or the digital camera body is provided with a magnet or the like, and the attitude of the vari-angle monitor is detected by a change in the magnetic field. It has been broken.
  • the vari-angle monitor 12 When the vari-angle monitor 12 has a built-in magnet and the posture of the vari-angle monitor 12 changes, the relative positional relationship of the magnet with respect to the geomagnetic sensor 11 changes, and the magnet moves to the position of the geomagnetic sensor 11.
  • the magnetic field created changes.
  • the change in the magnetic field is a change in disturbance for the geomagnetic sensor 11, and the correction system 100 needs to calibrate the offset of the geomagnetic sensor 11 in order to maintain the geomagnetic detection accuracy of the geomagnetic sensor 11.
  • the server 2 calculates the offset of the geomagnetic sensor 11.
  • FIG. 2 is a schematic perspective view of the digital camera 1.
  • the digital camera 1 includes a vari-angle monitor 12, a multi-axis hinge unit 13, a lens unit 14, a release switch 15, and a communication unit 16.
  • the vari-angle monitor 12 is provided on the back surface of the digital camera 1 and has a display screen 20 on the front surface, and does not have the display screen 20 on the back surface.
  • the vari-angle monitor 12 is connected to the back surface of the digital camera 1 by a multi-axis hinge portion 13 and can be rotated in the biaxial directions of the X axis and the Y axis.
  • the digital camera 1 has a storage unit 21 on the back surface, and the variable angle monitor 12 can be stored in the storage unit 21.
  • the digital camera 1 detects the posture of the vari-angle monitor 12 and displays a live view image corresponding to the posture on the vari-angle monitor 12.
  • the digital camera 1 detects that the vari-angle monitor 12 is housed in the housing unit 21 from the posture of the vari-angle monitor 12 and performs display on / off control of the vari-angle monitor 12.
  • the lens unit 14 is provided on the front side of the camera body and incorporates a plurality of lens groups including a zoom lens, a focusing lens, and an anti-vibration lens.
  • the release switch 15 is an operation member for the user to perform a half-press operation or a full-press operation.
  • the digital camera 1 adjusts the focus lens by driving the focusing lens in the optical axis direction by a focus motor (not shown), and the vibration-proof lens by a vibration-proof motor (not shown).
  • An imaging preparation operation such as camera shake correction that corrects camera shake by driving in a direction different from the optical axis direction is performed.
  • the full-press operation is performed using the release switch 15, the digital camera 1 performs an imaging operation.
  • the zoom lens described above is manually zoomed or electrically zoomed using a zoom motor (not shown).
  • the communication unit 16 transmits and receives various information to and from the server 2.
  • the communication unit 16 connects to an access point (not shown) using a wireless communication technology such as Wi-Fi (registered trademark).
  • the digital camera 1 transmits / receives various information to / from the server 2 through the Internet connection via the access point.
  • FIG. 3 (a) and 3 (b) are schematic rear views of the digital camera 1.
  • FIG. 3A the vari-angle monitor 12 is stored in the storage unit 21, and the surface having the display screen 20 is exposed on the back side of the digital camera 1.
  • FIG. 3B the vari-angle monitor 12 is stored in the storage unit 21, and the back surface is exposed on the back side of the digital camera 1.
  • the vari-angle monitor 12 has a first magnet 31 and a second magnet 32 built therein.
  • the first magnet 31 and the second magnet 32 are, for example, bar magnets with the south pole facing the front surface side and the north pole facing the back surface side of the vari-angle monitor 12 including the display screen 20.
  • the first magnet 31 and the second magnet 32 are arranged side by side along the Y axis in the vicinity of the multi-axis hinge portion 13 of the vari-angle monitor 12, and the X-axis rotation axis of the multi-axis hinge portion 13 is the center. Symmetric positional relationship.
  • the first magnet 31 and the second magnet 32 rotate together with the vari-angle monitor 12.
  • FIG. 4 is a schematic cross-sectional view taken along the line A1-A2 in FIG.
  • a hall element 33 is provided at a position in the vicinity of the first magnet 31 in FIG.
  • the Hall element 33 is an element that detects a magnetic field using the Hall effect.
  • the Hall element 33 mainly detects the magnetic field generated by the first magnet 31.
  • the Hall element 33 mainly detects the magnetic field generated by the second magnet 32 when the vari-angle monitor 12 is in the posture shown in FIG. That is, the output result of the Hall element 33 represents the posture of the vari-angle monitor 12.
  • a main board 40 on which the geomagnetic sensor 11 is mounted is incorporated.
  • the main board 40 is an electronic circuit board that controls the entire digital camera 1, and its position is determined so that the geomagnetic sensor 11 is as close as possible to the horizontal center C of the main body of the digital camera 1.
  • FIG. 5 is a block diagram of the digital camera 1.
  • FIG. 5 shows a vari-angle monitor 12, a release switch 15, a communication unit 16, a hall element 33, a main board 40, and a GPS module 51 as a part of the configuration of the digital camera 1. .
  • the control unit 41 is configured by a CPU or the like, and functions as at least an output correction unit 411, an attitude detection unit 412, and a display control unit 413 by executing a program stored in the memory 42.
  • the output correction unit 411 corrects the output signal of the geomagnetic sensor 11 using an offset.
  • the attitude detection unit 412 detects the attitude of the vari-angle monitor 12 based on the output signal of the hall element 33. Based on the posture of the vari-angle monitor 12 detected by the posture detection unit 412, the display control unit 413 performs control such as appropriately inverting the image displayed on the display screen 20 of the vari-angle monitor 12 vertically and horizontally.
  • the memory 42 includes a RAM and a ROM, and stores a program executed by the control unit 41. Further, the memory 42 stores an offset of the geomagnetic sensor 11 used when correcting the output signal of the geomagnetic sensor 11.
  • the digital camera 1 according to the present embodiment has an orientation image detected by the geomagnetic sensor 11 and a GPS module 51 in addition to an image captured using a lens unit 14 on a storage medium such as an SD card separately from the memory 42. Metadata such as detected position information is stored.
  • the GPS module 51 detects radio waves output from GPS satellites and outputs position information such as latitude and longitude to the control unit 41 of the main board 40.
  • FIG. 6 is a block diagram of the server 2.
  • the server 2 includes a control unit 61, a storage unit 62, and a communication unit 63.
  • the control unit 61 of the server 2 has a calculation device whose calculation speed is higher than that of the control unit 41 of the digital camera 1, and functions as an offset calculation unit 611 by executing a program stored in the storage unit 62. To do.
  • the communication unit 63 communicates with the communication unit 16 of the digital camera 1.
  • the information regarding the posture of the vari-angle monitor 12 represents the relative positional relationship between the first magnet 31 and the second magnet 32 with respect to the geomagnetic sensor 11, and the influence of the first magnet 31 and the second magnet 32 on the geomagnetic sensor 11 as a disturbance. Represents the degree.
  • the offset calculation unit 611 calculates the offset of the geomagnetic sensor 11 based on information regarding the posture of the vari-angle monitor 12 detected by the posture detection unit 412 of the digital camera 1. And the offset calculating part 611 produces
  • FIG. 7 is a flowchart regarding the update of the offset of the geomagnetic sensor 11 in the correction system 100.
  • FIG. 7 shows a flowchart of processing executed by the control unit 41 of the digital camera 1 shown in FIG.
  • step S200 the control unit 41 acquires the detection result of the Hall element 33 and stores it in the memory 42.
  • step S201 the control unit 41 detects the posture of the vari-angle monitor 12 as the posture detection unit 412 based on the output result of the hall element 33 detected in step S200.
  • step S202 the control unit 41 determines whether or not the vari-angle monitor 12 is stored in the storage unit 21 based on the posture of the vari-angle monitor 12 detected in step S201.
  • the vari-angle monitor 12 is not stored in the storage unit 21, that is, the vari-angle monitor 12 has left the control unit 41, the positions of the first magnet 31 and the second magnet 32 may change. If there is, the process proceeds to step S203.
  • the control unit 41 returns the process to step S200.
  • the control unit 41 may return the process to step S200 even if the vari-angle monitor 12 is not stored in the storage unit 21.
  • step S203 the control unit 41 transmits information regarding the attitude of the vari-angle monitor 12 detected in step S202 to the server 2 via the communication unit 16 as information related to the detection error of the geomagnetic sensor 11.
  • the server 2 receives information related to the posture of the vari-angle monitor 12 via the communication unit 63 of the server 2.
  • the control part 61 of the server 2 calculates the offset of the geomagnetic sensor 11 by the process of the offset calculating part 611 based on the received information regarding the attitude of the vari-angle monitor 12. Then, the control unit 61 of the server 2 generates correction information regarding the offset and transmits the correction information to the digital camera 1.
  • step S204 the control unit 41 determines whether correction information has been received from the server 2.
  • the control unit 41 repeats the determination in step S204 until the correction information is received from the server 2, and when the correction information is received from the server 2, the process proceeds to step S205.
  • step S205 the control unit 41 updates the offset of the geomagnetic sensor 11 using the correction information received from the server 2.
  • step S206 the control unit 41 determines whether or not the release switch 15 is operated.
  • the control unit 41 stands by in step S206 while the release switch 15 is half-pressed or fully pressed, and returns to step S200 when the release switch 15 is not half-pressed or fully pressed. That is, while the digital camera 1 is performing the imaging operation or the imaging preparation operation, the control unit 41 does not perform the processes related to Step S200 to Step S205, and performs the RAM for the imaging preparation operation and the imaging operation such as the focus detection operation. Free up resources such as This is effective when the user needs the direction detected by the geomagnetic sensor 11 after imaging (for example, during reproduction of an image).
  • the control unit 41 does not show the output of the geomagnetic sensor before correction and the posture information of the vari-angle monitor 12 (that is, disturbance information of the first magnet 31 and the second magnet 32 with respect to the geomagnetic sensor 11).
  • the control unit 41 affects the imaging operation by transmitting the information stored in the storage medium, that is, the information stored in the storage medium to the server 2 after the imaging operation and acquiring the correction information from the server 2. Therefore, the output of the geomagnetic sensor 11 can be corrected.
  • the correction operation of the geomagnetic sensor 11 may not be executed.
  • the correction operation of the geomagnetic sensor 11 may be executed. Instead of executing the correction operation of the geomagnetic sensor 11 when displaying the live view image, the resolution of the geomagnetic sensor 11 may be reduced, for example, from 16 azimuth display to 8-azimuth display.
  • the digital camera 1 includes a geomagnetic sensor 11, a control unit 41, and a communication unit 16.
  • the geomagnetic sensor 11 detects geomagnetism.
  • the control unit 41 includes an attitude detection unit 412 that detects the attitude of the vari-angle monitor 12 that is a disturbance with respect to the geomagnetic sensor 11 based on the output of the Hall element 33, and an offset that is updated based on the correction information received by the communication unit 16.
  • the communication unit 16 transmits information related to the attitude of the vari-angle monitor 12 to the server 2 and receives correction information related to the offset of the geomagnetic sensor 11 that the server 2 outputs based on information related to the attitude of the vari-angle monitor 12.
  • the processing load on the control unit 41 of the digital camera 1 does not become excessive even when the offset is updated in real time.
  • the degree of freedom of arrangement of magnets and the like inside the digital camera 1 is improved, and the internal magnets Need not be placed away from the geomagnetic sensor 11, and the digital camera 1 can be downsized.
  • the digital camera 1 transmits the information regarding the posture of the vari-angle monitor 12 output by the posture detection unit 412 to the server 2 in step S203, but the Hall element input to the posture detection unit 412
  • the 33 output signals may be transmitted to the server 2.
  • the server 2 detects the attitude of the vari-angle monitor 12 based on the output signal of the Hall element 33 transmitted from the digital camera 1 and calculates correction information regarding the offset of the geomagnetic sensor 11. Good.
  • the server 2 may adjust the offset calculated by the offset calculation unit 611 based on the location where the digital camera 1 is located. For example, when the digital camera 1 is located in the vicinity of the high voltage electric wire, it is desirable to adjust the offset.
  • the control unit 41 of the digital camera 1 calculates the latitude and longitude where the digital camera 1 is located based on the radio wave detected by the GPS module 51, and the position relating to the latitude and longitude where the digital camera 1 is located. Information is transmitted to the server 2.
  • the server 2 stores the latitude and longitude of the digital camera 1 and the adjustment value for adjusting the offset in advance in a database and stores it in the storage unit 62.
  • the server 2 Based on the position information received from the digital camera 1, the server 2 Search the database for adjustment values to adjust Then, the server 2 adjusts the offset calculated based on the information regarding the attitude of the vari-angle monitor 12 using the adjustment value, and transmits correction information regarding the adjusted offset to the digital camera 1. In addition, since structures such as reinforcing steel bars and iron bridges also cause disturbances, the server 2 stores adjustment values for adjusting disturbances of the structures in the storage unit 62 based on the position information detected by the GPS module 51. You may make it leave.
  • the server 2 calculates the offset of the geomagnetic sensor 11 but does not correct the output signal of the geomagnetic sensor 11 using the offset. However, the server 2 may correct the output signal of the geomagnetic sensor 11 using the offset. In this case, it is desirable that the digital camera 1 transmits not only the information regarding the posture of the vari-angle monitor 12 detected by the posture detection unit 412 but also the detection signal itself of the geomagnetic sensor 11 to the server 2.
  • the offset of the geomagnetic sensor 11 caused by the movement of the vari-angle monitor 12 is calculated by the server 2, but the offset amount caused by the disturbance from the lens unit 14 may be calculated.
  • the disturbance from the lens unit 14 is caused by a focus lens, a zoom lens, or an anti-vibration lens.
  • the lens unit 14 is an interchangeable lens, the amount of offset differs for each interchangeable lens, and more complicated computation is required. Therefore, the processing amount of the digital camera 1 can be obtained by using the offset computation unit 611 of the server 2. Can be reduced.
  • the calculation of the offset amount caused by the lens unit 14 is also avoided when the release switch 15 is operated as described in the flowchart of FIG.
  • the drive amount may be temporarily stored in response to a command from 41.
  • the calculation of the offset amount caused by the lens unit 14 may be performed even when the vari-angle monitor 12 is stored in the storage unit 21.
  • the geomagnetic sensor 11 may be mounted on a hot shoe (not shown) of the digital camera 1.
  • the present embodiment can also be applied to sensors other than the geomagnetic sensor 11, such as a gyro sensor for detecting camera shake of the digital camera 1 or the lens unit 14.
  • the server 2 calculates the offset (reference signal) of the gyro sensor, for example, the temperature of the gyro sensor may be detected using the temperature sensor, and information about the temperature may be transmitted to the server 2.
  • the control unit 41 may detect the temperature of the geomagnetic sensor 11 and transmit information regarding the detected temperature to the server 2 through the communication unit 16.
  • the GPS module 51 receives radio waves from GPS satellites, there is a possibility that the GPS module 51 may be affected by the season and place such as the influence of the ionosphere, the influence of water vapor, and the influence of atmospheric pressure.
  • the server 2 may store an adjustment value for adjusting the position information detected by the GPS module 51 in the storage unit 62.
  • the present embodiment can be applied not only to the digital camera 1 but also to other electronic devices.
  • the present invention can be applied to a foldable mobile phone or a smartphone.
  • the external device that communicates with the electronic device is not limited to the server 2 alone.
  • an information terminal that can communicate with an electronic device such as the digital camera 1 by near field communication may be used.

Abstract

This electronic apparatus is provided with: a first detecting unit that detects a predetermined physical quantity of a first apparatus; an information detecting unit that detects, at the time of performing the detection by means of the first detecting unit, information relating to a detection error of the first detecting unit, said detection error having been generated due to the first apparatus; a communication unit, which transmits the information detected by means of the information detecting unit to an external apparatus, and which receives correction information from the external apparatus; and a correcting unit that corrects detection results on the basis of the correction information received by means of the communication unit, said detection results having been obtained from the first detecting unit.

Description

電子機器Electronics
　本発明は、電子機器に関する。 The present invention relates to an electronic device.
　物理量を検出するセンサにおいて、このセンサに影響を与える外乱を除去することが提案されており、例えば、３軸タイプの磁気センサのオフセットを演算して、そのオフセットを用いて磁気センサの出力を補正する携帯電子機器が知られている（特許文献１）。 In sensors that detect physical quantities, it has been proposed to remove disturbances that affect this sensor. For example, the offset of a 3-axis type magnetic sensor is calculated and the output of the magnetic sensor is corrected using that offset. A portable electronic device is known (Patent Document 1).
日本国特開２００６－２３２９３号公報Japanese Unexamined Patent Publication No. 2006-23293
　センサの検出結果を用いる電子機器において、センサのオフセットをリアルタイムに電子機器の内部で演算する場合、センサに対する外乱が頻繁に変化すると、オフセットの演算処理により電子機器の処理負荷が過大となる虞がある。 In an electronic device that uses a sensor detection result, when the sensor offset is calculated inside the electronic device in real time, if the disturbance to the sensor changes frequently, the processing load on the electronic device may become excessive due to the offset calculation process. is there.
　本発明の第１の態様によると、電子機器は、第１の装置の所定の物理量を検出する第１検出部と、第１検出部による検出を行う際に、第１の装置に起因する第１検出部の検出誤差に関連する情報を検出する情報検出部と、情報検出部が検出した情報を外部機器に送信し、外部機器より補正情報を受信する通信部と、通信部が受信した補正情報に基づいて、第１検出部の検出結果を補正する補正部と、を備える。
　本発明の第２の態様によると、第１の態様の電子機器において、情報検出部は、磁場の変化に関する情報を第１検出部の検出誤差に関連する情報として検出することが好ましい。
　本発明の第３の態様によると、第１または第２の態様の電子機器において、第１の装置は、移動可能な移動ユニットであって、情報検出部は、移動ユニットの位置および姿勢の少なくとも一方を検出することが好ましい。
　本発明の第４の態様によると、第１から第３のいずれか一態様の電子機器において、情報検出部は、電子機器に着脱可能な第２の装置に起因した検出誤差に関連する情報を検出することが好ましい。
　本発明の第５の態様によると、第１から第４のいずれか一態様の電子機器において、第１検出部は、第１の装置に着脱可能であることが好ましい。
　本発明の第６の態様によると、第１から第５のいずれか一態様の電子機器において、第１検出部は、地磁気センサを有することが好ましい。
　本発明の第７の態様によると、第１から第６のいずれか一態様の電子機器において、電子機器の位置情報を検出する位置検出部を備え、通信部は、外部機器に位置検出部が検出した位置情報を送信することが好ましい。
　本発明の第８の態様によると、第７の態様の電子機器において、通信部は、外部機器より位置情報に起因した補正情報を受信することが好ましい。
　本発明の第９の態様によると、第１から第８のいずれか一態様の電子機器において、被写体を撮像する撮像部を備えることが好ましい。
　本発明の第１０の態様によると、第９の態様の電子機器において、撮像部による撮像中または撮影準備中は、通信部による検出誤差に関連する情報の送信を禁止するように制御する制御部を備えることが好ましい。
　本発明の第１１の態様によると、第１０の態様の電子機器において、撮像部に撮像と撮影準備との少なくとも一方を指示する指示部を備え、制御部は、指示部の指示に応じて、通信部による検出誤差に関連する情報の送信を禁止するように制御することが好ましい。
　本発明の第１２の態様によると、第１０または第１１の態様の電子機器において、制御部は、電子機器が再生モードまたは編集モードの際に、通信部による検出誤差に関連する情報の送信を禁止するように制御することが好ましい。
　本発明の第１３の態様によると、第１から第１２のいずれか一態様の電子機器において、第１検出部の温度を検出する温度検出部を備えることが好ましい。 According to the first aspect of the present invention, the electronic device detects the predetermined physical quantity of the first device, and the first device caused by the first device when performing detection by the first detector. An information detection unit that detects information related to a detection error of one detection unit, a communication unit that transmits information detected by the information detection unit to an external device and receives correction information from the external device, and a correction received by the communication unit And a correction unit that corrects the detection result of the first detection unit based on the information.
According to the second aspect of the present invention, in the electronic device of the first aspect, it is preferable that the information detection unit detects information relating to a change in the magnetic field as information related to a detection error of the first detection unit.
According to the third aspect of the present invention, in the electronic device of the first or second aspect, the first device is a movable mobile unit, and the information detection unit is at least one of the position and orientation of the mobile unit. It is preferable to detect one.
According to the fourth aspect of the present invention, in the electronic device according to any one of the first to third aspects, the information detection unit displays information related to a detection error caused by the second device detachable from the electronic device. It is preferable to detect.
According to the fifth aspect of the present invention, in the electronic device according to any one of the first to fourth aspects, it is preferable that the first detection unit is detachable from the first device.
According to the sixth aspect of the present invention, in the electronic device according to any one of the first to fifth aspects, the first detection unit preferably includes a geomagnetic sensor.
According to a seventh aspect of the present invention, in the electronic device according to any one of the first to sixth aspects, the electronic device includes a position detection unit that detects position information of the electronic device, and the communication unit includes a position detection unit in the external device. It is preferable to transmit the detected position information.
According to the eighth aspect of the present invention, in the electronic device of the seventh aspect, it is preferable that the communication unit receives correction information resulting from the position information from the external device.
According to the ninth aspect of the present invention, it is preferable that the electronic device according to any one of the first to eighth aspects includes an imaging unit that images a subject.
According to the tenth aspect of the present invention, in the electronic device of the ninth aspect, the control unit that controls to prohibit transmission of information related to the detection error by the communication unit during imaging by the imaging unit or during shooting preparation It is preferable to provide.
According to the eleventh aspect of the present invention, in the electronic device according to the tenth aspect, the imaging unit includes an instruction unit that instructs at least one of imaging and shooting preparation, and the control unit is configured according to an instruction from the instruction unit. It is preferable to perform control so as to prohibit transmission of information related to the detection error by the communication unit.
According to the twelfth aspect of the present invention, in the electronic device according to the tenth or eleventh aspect, the control unit transmits information related to the detection error by the communication unit when the electronic device is in the reproduction mode or the editing mode. It is preferable to control to prohibit.
According to the thirteenth aspect of the present invention, in the electronic device according to any one of the first to twelfth aspects, it is preferable to include a temperature detection unit that detects the temperature of the first detection unit.
　本発明の第１４の態様によると、電子機器は、所定の物理量を検出する第１検出部と、第１検出部に対する外乱に関する情報を検出する外乱検出部と、外乱検出部が検出した外乱に関する情報を外部機器に送信し、外部機器が当該外乱に関する情報に基づいて出力する補正情報を受信する通信部と、通信部が受信した補正情報に基づいて、第１検出部の検出結果を補正する補正部と、を備える。
　本発明の第１５の態様によると、第１４の態様の電子機器において、移動可能であり、磁場を発生させる磁場発生部を備え、外乱検出部は、磁場発生部が発生させる磁場の変化に関する情報を検出することが好ましい。
　本発明の第１６の態様によると、第１５の態様の電子機器において、外乱検出部は、磁場発生部が発生させる磁場の変化に関する情報に基づいて、移動により変化した磁場発生部の姿勢を、外乱に関する情報として検出することが好ましい。
　本発明の第１７の態様によると、第１４から第１６のいずれか一態様の電子機器において、第１検出部は、物理量として地磁気の強さを検出する地磁気センサであり、補正情報は、地磁気センサのオフセットに関する情報であり、補正部は、オフセットに基づいて、地磁気センサの検出結果を補正することが好ましい。
　本発明の第１８の態様によると、第１４から第１７のいずれか一態様の電子機器において、電子機器の位置に関する情報を検出する位置情報検出部を備え、通信部は、位置情報検出部により検出された位置に関する情報を外部機器に送信して、外乱検出部が検出した外乱に関する情報と当該位置に関する情報とに基づいて外部機器が出力する補正情報を受信することが好ましい。
　本発明の第１９の態様によると、第１４から第１８のいずれか一態様の電子機器において、被写体像を撮像する撮像部を備え、通信部は、撮像部による撮像中または撮影準備中は、外乱検出部が検出した外乱に関する情報を外部機器に送信しないことが好ましい。 According to the fourteenth aspect of the present invention, the electronic device relates to a first detection unit that detects a predetermined physical quantity, a disturbance detection unit that detects information about disturbance to the first detection unit, and a disturbance detected by the disturbance detection unit. A communication unit that transmits information to an external device and receives correction information that the external device outputs based on information related to the disturbance, and a detection result of the first detection unit is corrected based on the correction information received by the communication unit. A correction unit.
According to the fifteenth aspect of the present invention, in the electronic device according to the fourteenth aspect, the electronic device includes a magnetic field generation unit that is movable and generates a magnetic field, and the disturbance detection unit is information related to a change in the magnetic field generated by the magnetic field generation unit. Is preferably detected.
According to the sixteenth aspect of the present invention, in the electronic device of the fifteenth aspect, the disturbance detection unit is configured to change the attitude of the magnetic field generation unit that has changed due to the movement based on the information about the change in the magnetic field generated by the magnetic field generation unit. It is preferable to detect it as information regarding disturbance.
According to a seventeenth aspect of the present invention, in the electronic device according to any one of the fourteenth to sixteenth aspects, the first detection unit is a geomagnetic sensor that detects the strength of geomagnetism as a physical quantity, and the correction information is the geomagnetism. It is information regarding the offset of the sensor, and the correction unit preferably corrects the detection result of the geomagnetic sensor based on the offset.
According to an eighteenth aspect of the present invention, in the electronic device according to any one of the fourteenth to seventeenth aspects, the electronic device includes a position information detection unit that detects information related to the position of the electronic device, and the communication unit includes the position information detection unit. It is preferable to transmit information related to the detected position to the external device and receive correction information output from the external device based on the information related to the disturbance detected by the disturbance detection unit and the information related to the position.
According to a nineteenth aspect of the present invention, the electronic device according to any one of the fourteenth to eighteenth aspects includes an imaging unit that captures a subject image, and the communication unit is during imaging by the imaging unit or during imaging preparation. It is preferable not to transmit the information regarding the disturbance detected by the disturbance detection unit to the external device.
　本発明によれば、センサ出力を補正する場合であっても、電子機器の処理負荷が過大にならない。 According to the present invention, even when the sensor output is corrected, the processing load on the electronic device does not become excessive.
本発明の一実施の形態による電子機器を備える補正システムのブロック図の一例である。It is an example of the block diagram of a correction | amendment system provided with the electronic device by one embodiment of this invention. 本発明の一実施の形態による電子機器の一例であるデジタルカメラの概略斜視図である。1 is a schematic perspective view of a digital camera that is an example of an electronic apparatus according to an embodiment of the present invention. （ａ），（ｂ）本発明の一実施の形態による電子機器の一例であるデジタルカメラの背面図である。It is a rear view of the digital camera which is an example of the electronic device by one Embodiment of this invention. 図３（ｂ）のＡ１－Ａ２間の断面を図示した概略断面図である。FIG. 4 is a schematic cross-sectional view illustrating a cross section between A1 and A2 in FIG. 本発明の一実施の形態による電子機器の一例であるデジタルカメラのブロック図である。1 is a block diagram of a digital camera that is an example of an electronic apparatus according to an embodiment of the present invention. 本発明の一実施の形態による電子機器と通信する外部機器の一例であるサーバのブロック図である。It is a block diagram of the server which is an example of the external device which communicates with the electronic device by one embodiment of this invention. 地磁気センサのオフセットを更新するための処理に関するフローチャートである。It is a flowchart regarding the process for updating the offset of a geomagnetic sensor.
　図１は、本発明の一実施の形態による電子機器と、その電子機器と通信する外部機器とからなる補正システムに関するブロック図である。図１に示す補正システム１００は、本発明の一実施の形態による電子機器であるデジタルカメラ１と、サーバ２とを備える。 FIG. 1 is a block diagram relating to a correction system including an electronic device according to an embodiment of the present invention and an external device that communicates with the electronic device. A correction system 100 shown in FIG. 1 includes a digital camera 1 that is an electronic device according to an embodiment of the present invention, and a server 2.
　デジタルカメラ１は、後述のレンズユニット１４により結像される光学像を不図示の撮像素子により光電変換し、不図示の画像処理部により色補間処理、階調変換処理、ホワイトバランス処理などの画像処理を行うことによりデジタル画像を生成するものであり、本実施の形態においては、地磁気センサ１１とバリアングルモニタ１２を備えている。地磁気センサ１１は、２軸や３軸タイプのものがあり、本実施の形態においては３軸タイプの地磁気センサにより、地球の磁場である地磁気に応じた電気信号を出力し、レンズユニット１４により撮影を行う方位を所定の分解能（例えば８方位、１６方位など）で検出している。地磁気センサ１１は、地磁気以外にも地磁気センサ１１の周囲を流れる電流や地磁気センサ１１の周囲に配設された磁性体部品などが作る磁場も外乱として検出する。地磁気センサ１１では、このような外乱の影響により検出誤差が発生する。地磁気センサ１１の出力信号から地磁気以外の磁場に関する成分を除くため、従来からオフセットを設定して、そのオフセットを用いて地磁気センサ１１の出力を補正する処理が行われている。 The digital camera 1 photoelectrically converts an optical image formed by a lens unit 14 (to be described later) by an image sensor (not shown), and images such as color interpolation processing, gradation conversion processing, and white balance processing by an image processing unit (not shown). A digital image is generated by performing processing. In this embodiment, a geomagnetic sensor 11 and a vari-angle monitor 12 are provided. The geomagnetic sensor 11 includes two-axis and three-axis types. In this embodiment, the triaxial type geomagnetic sensor outputs an electrical signal corresponding to the earth's magnetic field, which is the earth's magnetic field, and is photographed by the lens unit 14. Is detected with a predetermined resolution (for example, 8 directions, 16 directions, etc.). In addition to the geomagnetism, the geomagnetic sensor 11 also detects a current flowing around the geomagnetic sensor 11 and a magnetic field formed by magnetic parts arranged around the geomagnetic sensor 11 as disturbances. In the geomagnetic sensor 11, a detection error occurs due to the influence of such disturbance. In order to remove a component related to a magnetic field other than geomagnetism from the output signal of the geomagnetic sensor 11, processing for setting an offset and correcting the output of the geomagnetic sensor 11 using the offset has been performed.
　バリアングルモニタ１２は、可動式の表示装置であり、デジタル画像（静止画・動画）や、撮影条件や、地磁気センサ１１が検出した方位などを表示するものであり、後述するようにその姿勢を変化させることができる。従来からデジタルカメラでは、バリアングルモニタの姿勢に基づいた表示制御を行うため、バリアングルモニタやデジタルカメラの本体に磁石などを設けて、磁場の変化によりバリアングルモニタの姿勢を検出することが行われている。 The vari-angle monitor 12 is a movable display device that displays digital images (still images / moving images), shooting conditions, orientations detected by the geomagnetic sensor 11, and the like, as described later. Can be changed. Conventionally, in digital cameras, display control based on the attitude of the vari-angle monitor is performed. Therefore, the vari-angle monitor or the digital camera body is provided with a magnet or the like, and the attitude of the vari-angle monitor is detected by a change in the magnetic field. It has been broken.
　バリアングルモニタ１２に磁石が内蔵されている場合に、そのバリアングルモニタ１２の姿勢が変化すると、地磁気センサ１１に対する磁石の相対的な位置関係が変化して、その磁石が地磁気センサ１１の位置に作る磁場が変化する。その磁場の変化は地磁気センサ１１にとって外乱の変化であり、地磁気センサ１１の地磁気の検出精度を保つためには、補正システム１００は地磁気センサ１１のオフセットをキャリブレーションする必要がある。サーバ２は、地磁気センサ１１のオフセットを演算する。 When the vari-angle monitor 12 has a built-in magnet and the posture of the vari-angle monitor 12 changes, the relative positional relationship of the magnet with respect to the geomagnetic sensor 11 changes, and the magnet moves to the position of the geomagnetic sensor 11. The magnetic field created changes. The change in the magnetic field is a change in disturbance for the geomagnetic sensor 11, and the correction system 100 needs to calibrate the offset of the geomagnetic sensor 11 in order to maintain the geomagnetic detection accuracy of the geomagnetic sensor 11. The server 2 calculates the offset of the geomagnetic sensor 11.
　図２は、デジタルカメラ１の概略斜視図である。デジタルカメラ１は、バリアングルモニタ１２と、多軸ヒンジ部１３と、レンズユニット１４と、レリーズスイッチ１５と、通信部１６とを有する。 FIG. 2 is a schematic perspective view of the digital camera 1. The digital camera 1 includes a vari-angle monitor 12, a multi-axis hinge unit 13, a lens unit 14, a release switch 15, and a communication unit 16.
　バリアングルモニタ１２は、デジタルカメラ１の背面に設けられ、表示画面２０を表面に有し、その裏面には表示画面２０を有さない。バリアングルモニタ１２は、多軸ヒンジ部１３により、デジタルカメラ１の背面に連結され、Ｘ軸とＹ軸の２軸方向に回動することができる。デジタルカメラ１は、その背面に収納部２１を有し、その収納部２１にバリアングルモニタ１２を収納することができる。例えば、ユーザがデジタルカメラ１の背面側からバリアングルモニタ１２によりライブビュー画像を確認する場合と、自分撮りなどでデジタルカメラの前面側からバリアングルモニタ１２によりライブビュー画像を確認する場合とでは、バリアングルモニタ１２の天地（上下位置）が逆転してしまう。このため、デジタルカメラ１は、バリアングルモニタ１２の姿勢を検出して、この姿勢に応じたライブビュー画像をバリアングルモニタ１２に表示している。また、デジタルカメラ１は、バリアングルモニタ１２が収納部２１に収納されていることバリアングルモニタ１２の姿勢から検出して、バリアングルモニタ１２の表示のオン・オフ制御を行っている。 The vari-angle monitor 12 is provided on the back surface of the digital camera 1 and has a display screen 20 on the front surface, and does not have the display screen 20 on the back surface. The vari-angle monitor 12 is connected to the back surface of the digital camera 1 by a multi-axis hinge portion 13 and can be rotated in the biaxial directions of the X axis and the Y axis. The digital camera 1 has a storage unit 21 on the back surface, and the variable angle monitor 12 can be stored in the storage unit 21. For example, when the user confirms the live view image from the back side of the digital camera 1 with the vari-angle monitor 12, and when the user confirms the live view image from the front side of the digital camera by self-taking or the like, The top and bottom (vertical position) of the vari-angle monitor 12 is reversed. For this reason, the digital camera 1 detects the posture of the vari-angle monitor 12 and displays a live view image corresponding to the posture on the vari-angle monitor 12. In addition, the digital camera 1 detects that the vari-angle monitor 12 is housed in the housing unit 21 from the posture of the vari-angle monitor 12 and performs display on / off control of the vari-angle monitor 12.
　レンズユニット１４は、カメラ本体の前面側に設けられ、ズームレンズやフォーカシングレンズや防振レンズを含む複数のレンズ群を内蔵している。レリーズスイッチ１５は、ユーザが半押し操作や全押し操作を行うための操作部材である。レリーズスイッチ１５を用いて半押し操作が行われると、デジタルカメラ１は不図示のフォーカス用モータによりフォーカシングレンズを光軸方向に駆動する焦点調節や、不図示の防振用モータにより防振レンズを光軸方向とは異なる方向に駆動して手振れを補正する手振れ補正などの撮影準備動作を行う。また、レリーズスイッチ１５を用いて全押し操作が行われると、デジタルカメラ１は撮像動作を行う。なお、前述のズームレンズは手動によりズーム操作されたり、不図示のズーム用モータを用いて電動ズームされたりする。 The lens unit 14 is provided on the front side of the camera body and incorporates a plurality of lens groups including a zoom lens, a focusing lens, and an anti-vibration lens. The release switch 15 is an operation member for the user to perform a half-press operation or a full-press operation. When the half-press operation is performed using the release switch 15, the digital camera 1 adjusts the focus lens by driving the focusing lens in the optical axis direction by a focus motor (not shown), and the vibration-proof lens by a vibration-proof motor (not shown). An imaging preparation operation such as camera shake correction that corrects camera shake by driving in a direction different from the optical axis direction is performed. Further, when the full-press operation is performed using the release switch 15, the digital camera 1 performs an imaging operation. The zoom lens described above is manually zoomed or electrically zoomed using a zoom motor (not shown).
　通信部１６は、サーバ２との間で各種情報の送受信を行う。例えば、通信部１６は、Ｗｉ－Ｆｉ（登録商標）などの無線通信技術を用いてアクセスポイント（不図示）と接続する。そして、デジタルカメラ１は、そのアクセスポイントを経由したインターネット接続によりサーバ２との間で各種情報の送受信を行う。 The communication unit 16 transmits and receives various information to and from the server 2. For example, the communication unit 16 connects to an access point (not shown) using a wireless communication technology such as Wi-Fi (registered trademark). The digital camera 1 transmits / receives various information to / from the server 2 through the Internet connection via the access point.
　図３（ａ）および（ｂ）は、デジタルカメラ１の概略背面図である。図３（ａ）では、バリアングルモニタ１２は、収納部２１に収納されており、表示画面２０を有する表面がデジタルカメラ１の背面側に露出している。図３（ｂ）では、バリアングルモニタ１２は、収納部２１に収納されており、裏面がデジタルカメラ１の背面側に露出している。 3 (a) and 3 (b) are schematic rear views of the digital camera 1. FIG. In FIG. 3A, the vari-angle monitor 12 is stored in the storage unit 21, and the surface having the display screen 20 is exposed on the back side of the digital camera 1. In FIG. 3B, the vari-angle monitor 12 is stored in the storage unit 21, and the back surface is exposed on the back side of the digital camera 1.
　図３（ｂ）のようにバリアングルモニタ１２が収納部２１に収納された状態からＹ軸を中心にバリアングルモニタ１２を略１８０°回動させて収納部２１から退出させると、図２に示す状態となる。そして、図２においてＸ軸を中心にバリアングルモニタ１２を略１８０°回動させた後にＹ軸を中心に回動させて収納部２１に収納すると図３（ａ）の状態となる。 When the vari-angle monitor 12 is rotated about 180 ° around the Y axis from the state where the vari-angle monitor 12 is stored in the storage unit 21 as shown in FIG. It will be in the state shown. In FIG. 2, when the vari-angle monitor 12 is rotated about 180 ° about the X axis and then rotated about the Y axis and stored in the storage unit 21, the state shown in FIG.
　図３（ａ）および（ｂ）に図示されるように、バリアングルモニタ１２には第１磁石３１と第２磁石３２とが内蔵されている。第１磁石３１と第２磁石３２は、例えば、表示画面２０を備えるバリアングルモニタ１２の表面側にＳ極を向け、裏面側にＮ極を向けた棒磁石である。第１磁石３１と第２磁石３２は、バリアングルモニタ１２の多軸ヒンジ部１３の近傍に、Ｙ軸に沿って並べて配置されており、多軸ヒンジ部１３のＸ軸の回転軸を中心に対称の位置関係にある。第１磁石３１と第２磁石３２は、バリアングルモニタ１２と共に回動する。 3A and 3B, the vari-angle monitor 12 has a first magnet 31 and a second magnet 32 built therein. The first magnet 31 and the second magnet 32 are, for example, bar magnets with the south pole facing the front surface side and the north pole facing the back surface side of the vari-angle monitor 12 including the display screen 20. The first magnet 31 and the second magnet 32 are arranged side by side along the Y axis in the vicinity of the multi-axis hinge portion 13 of the vari-angle monitor 12, and the X-axis rotation axis of the multi-axis hinge portion 13 is the center. Symmetric positional relationship. The first magnet 31 and the second magnet 32 rotate together with the vari-angle monitor 12.
　図４は、図３（ｂ）のＡ１－Ａ２間の概略断面図である。デジタルカメラ１の本体の内、図３（ｂ）における第１磁石３１の近傍の位置には、ホール素子３３が設けられている。ホール素子３３は、ホール効果を利用して磁界を検出する素子であり、バリアングルモニタ１２が図３（ｂ）に示す姿勢の場合には、主に第１磁石３１が作る磁場を検出する。他方で、ホール素子３３は、バリアングルモニタ１２が図３（ａ）に示す姿勢の場合には、主に第２磁石３２が作る磁場を検出する。すなわち、ホール素子３３の出力結果は、バリアングルモニタ１２の姿勢を表す。 FIG. 4 is a schematic cross-sectional view taken along the line A1-A2 in FIG. A hall element 33 is provided at a position in the vicinity of the first magnet 31 in FIG. The Hall element 33 is an element that detects a magnetic field using the Hall effect. When the vari-angle monitor 12 is in the posture shown in FIG. 3B, the Hall element 33 mainly detects the magnetic field generated by the first magnet 31. On the other hand, the Hall element 33 mainly detects the magnetic field generated by the second magnet 32 when the vari-angle monitor 12 is in the posture shown in FIG. That is, the output result of the Hall element 33 represents the posture of the vari-angle monitor 12.
　デジタルカメラ１の本体内部には、地磁気センサ１１が実装されたメイン基板４０が内蔵されている。メイン基板４０は、デジタルカメラ１全体の制御を行う電子回路基板であって、地磁気センサ１１がデジタルカメラ１の本体の左右方向の中心Ｃにできるだけ近くなるようにその位置が決められている。 In the main body of the digital camera 1, a main board 40 on which the geomagnetic sensor 11 is mounted is incorporated. The main board 40 is an electronic circuit board that controls the entire digital camera 1, and its position is determined so that the geomagnetic sensor 11 is as close as possible to the horizontal center C of the main body of the digital camera 1.
　図５は、デジタルカメラ１のブロック構成図である。図５には、デジタルカメラ１の構成の一部として、バリアングルモニタ１２と、レリーズスイッチ１５と、通信部１６と、ホール素子３３と、メイン基板４０と、ＧＰＳモジュール５１とが図示されている。 FIG. 5 is a block diagram of the digital camera 1. FIG. 5 shows a vari-angle monitor 12, a release switch 15, a communication unit 16, a hall element 33, a main board 40, and a GPS module 51 as a part of the configuration of the digital camera 1. .
　メイン基板４０には、地磁気センサ１１と、制御部４１と、メモリ４２とが実装されている。制御部４１は、ＣＰＵなどで構成され、メモリ４２に記憶されたプログラムを実行することにより、少なくとも出力補正部４１１と、姿勢検出部４１２と、表示制御部４１３として機能する。出力補正部４１１は、地磁気センサ１１の出力信号を、オフセットを用いて補正する。姿勢検出部４１２は、ホール素子３３の出力信号に基づいて、バリアングルモニタ１２の姿勢を検出する。表示制御部４１３は、姿勢検出部４１２が検出したバリアングルモニタ１２の姿勢に基づいて、バリアングルモニタ１２の表示画面２０に表示する画像を適宜上下左右に反転させるなどの制御を行う。 On the main board 40, the geomagnetic sensor 11, the control unit 41, and the memory 42 are mounted. The control unit 41 is configured by a CPU or the like, and functions as at least an output correction unit 411, an attitude detection unit 412, and a display control unit 413 by executing a program stored in the memory 42. The output correction unit 411 corrects the output signal of the geomagnetic sensor 11 using an offset. The attitude detection unit 412 detects the attitude of the vari-angle monitor 12 based on the output signal of the hall element 33. Based on the posture of the vari-angle monitor 12 detected by the posture detection unit 412, the display control unit 413 performs control such as appropriately inverting the image displayed on the display screen 20 of the vari-angle monitor 12 vertically and horizontally.
　メモリ４２は、ＲＡＭとＲＯＭとを有し、制御部４１により実行されるプログラム等を記憶する。また、メモリ４２には、地磁気センサ１１の出力信号の補正を行う際に用いる地磁気センサ１１のオフセットが記憶されている。本実施の形態のデジタルカメラ１は、このメモリ４２とは別にＳＤカードのような記憶媒体にレンズユニット１４を用いて撮像した画像に加え、地磁気センサ１１が検出した方位情報や、ＧＰＳモジュール５１が検出した位置情報などのメタデータを記憶させている。
　ＧＰＳモジュール５１は、ＧＰＳ衛星から出力される電波を検出して、緯度や経度といった位置情報をメイン基板４０の制御部４１に出力する。 The memory 42 includes a RAM and a ROM, and stores a program executed by the control unit 41. Further, the memory 42 stores an offset of the geomagnetic sensor 11 used when correcting the output signal of the geomagnetic sensor 11. The digital camera 1 according to the present embodiment has an orientation image detected by the geomagnetic sensor 11 and a GPS module 51 in addition to an image captured using a lens unit 14 on a storage medium such as an SD card separately from the memory 42. Metadata such as detected position information is stored.
The GPS module 51 detects radio waves output from GPS satellites and outputs position information such as latitude and longitude to the control unit 41 of the main board 40.
　図６は、サーバ２のブロック構成図である。サーバ２は、制御部６１と、記憶部６２と、通信部６３とを備える。サーバ２の制御部６１は、デジタルカメラ１の制御部４１よりも演算速度が高速な演算装置を有しており、記憶部６２に記憶されたプログラムを実行することにより、オフセット演算部６１１として機能する。通信部６３は、デジタルカメラ１の通信部１６と通信する。 FIG. 6 is a block diagram of the server 2. The server 2 includes a control unit 61, a storage unit 62, and a communication unit 63. The control unit 61 of the server 2 has a calculation device whose calculation speed is higher than that of the control unit 41 of the digital camera 1, and functions as an offset calculation unit 611 by executing a program stored in the storage unit 62. To do. The communication unit 63 communicates with the communication unit 16 of the digital camera 1.
　バリアングルモニタ１２の姿勢に関する情報は、地磁気センサ１１に対する第１磁石３１および第２磁石３２の相対的な位置関係を表し、地磁気センサ１１に対する第１磁石３１および第２磁石３２の外乱としての影響度合いを表している。オフセット演算部６１１は、デジタルカメラ１の姿勢検出部４１２が検出したバリアングルモニタ１２の姿勢に関する情報に基づいて、地磁気センサ１１のオフセットを演算する。そして、オフセット演算部６１１は、そのオフセットに関する補正情報を生成する。 The information regarding the posture of the vari-angle monitor 12 represents the relative positional relationship between the first magnet 31 and the second magnet 32 with respect to the geomagnetic sensor 11, and the influence of the first magnet 31 and the second magnet 32 on the geomagnetic sensor 11 as a disturbance. Represents the degree. The offset calculation unit 611 calculates the offset of the geomagnetic sensor 11 based on information regarding the posture of the vari-angle monitor 12 detected by the posture detection unit 412 of the digital camera 1. And the offset calculating part 611 produces | generates the correction information regarding the offset.
　図７は、補正システム１００における地磁気センサ１１のオフセットの更新に関するフローチャートである。図７には、図５に示されたデジタルカメラ１の制御部４１により実行される処理についてフローチャートが示されている。 FIG. 7 is a flowchart regarding the update of the offset of the geomagnetic sensor 11 in the correction system 100. FIG. 7 shows a flowchart of processing executed by the control unit 41 of the digital camera 1 shown in FIG.
　ステップＳ２００では、制御部４１は、ホール素子３３の検出結果を取得し、メモリ４２に記憶する。ステップＳ２０１では、制御部４１は、姿勢検出部４１２として、ステップＳ２００で検出したホール素子３３の出力結果に基づいて、バリアングルモニタ１２の姿勢を検出する。 In step S200, the control unit 41 acquires the detection result of the Hall element 33 and stores it in the memory 42. In step S201, the control unit 41 detects the posture of the vari-angle monitor 12 as the posture detection unit 412 based on the output result of the hall element 33 detected in step S200.
　ステップＳ２０２では、制御部４１は、ステップＳ２０１で検出されたバリアングルモニタ１２の姿勢に基づいて、バリアングルモニタ１２が収納部２１に収納されているか否かを判定する。制御部４１は、バリアングルモニタ１２が収納部２１に収納されていない場合、すなわちバリアングルモニタ１２が収納部２１から退出しており、第１磁石３１および第２磁石３２の位置が変化する虞がある場合、処理をステップＳ２０３に進める。制御部４１は、バリアングルモニタ１２が収納部２１に収納されている場合、処理をステップＳ２００に戻す。また、不図示の操作部材によりデジタルカメラ１が撮像した静止画や動画を再生する再生モードに設定されていたり、各種編集を行う編集モードに設定されている場合には、地磁気センサ１１による方位の検出は不要である。このような場合に、制御部４１は、バリアングルモニタ１２が収納部２１に収納されていなくても処理をステップＳ２００に戻すようにすればよい。 In step S202, the control unit 41 determines whether or not the vari-angle monitor 12 is stored in the storage unit 21 based on the posture of the vari-angle monitor 12 detected in step S201. When the vari-angle monitor 12 is not stored in the storage unit 21, that is, the vari-angle monitor 12 has left the control unit 41, the positions of the first magnet 31 and the second magnet 32 may change. If there is, the process proceeds to step S203. When the vari-angle monitor 12 is stored in the storage unit 21, the control unit 41 returns the process to step S200. In addition, when the playback mode for playing back still images and moving images captured by the digital camera 1 with an operation member (not shown) is set, or when the editing mode for various editing is set, the orientation of the geomagnetic sensor 11 is changed. Detection is not necessary. In such a case, the control unit 41 may return the process to step S200 even if the vari-angle monitor 12 is not stored in the storage unit 21.
　ステップＳ２０３では、制御部４１は、地磁気センサ１１の検出誤差に関連する情報として、ステップＳ２０２で検出したバリアングルモニタ１２の姿勢に関する情報を、通信部１６を介してサーバ２へ送信する。サーバ２は、サーバ２の通信部６３を介してバリアングルモニタ１２の姿勢に関する情報を受信する。そして、サーバ２の制御部６１は、受信したバリアングルモニタ１２の姿勢に関する情報に基づいて、オフセット演算部６１１の処理により、地磁気センサ１１のオフセットを演算する。そして、サーバ２の制御部６１は、そのオフセットに関する補正情報を生成して、デジタルカメラ１に送信する。 In step S203, the control unit 41 transmits information regarding the attitude of the vari-angle monitor 12 detected in step S202 to the server 2 via the communication unit 16 as information related to the detection error of the geomagnetic sensor 11. The server 2 receives information related to the posture of the vari-angle monitor 12 via the communication unit 63 of the server 2. And the control part 61 of the server 2 calculates the offset of the geomagnetic sensor 11 by the process of the offset calculating part 611 based on the received information regarding the attitude of the vari-angle monitor 12. Then, the control unit 61 of the server 2 generates correction information regarding the offset and transmits the correction information to the digital camera 1.
　ステップＳ２０４では、制御部４１は、サーバ２から補正情報を受信したか否かを判定する。制御部４１は、サーバ２から補正情報を受信するまでステップＳ２０４の判定を繰り返し、サーバ２から補正情報を受信したとき処理をステップＳ２０５に進める。ステップＳ２０５では、制御部４１は、サーバ２から受信した補正情報を用いて、地磁気センサ１１のオフセットを更新する。 In step S204, the control unit 41 determines whether correction information has been received from the server 2. The control unit 41 repeats the determination in step S204 until the correction information is received from the server 2, and when the correction information is received from the server 2, the process proceeds to step S205. In step S205, the control unit 41 updates the offset of the geomagnetic sensor 11 using the correction information received from the server 2.
　ステップＳ２０６では、制御部４１は、レリーズスイッチ１５が操作されているか否かを判定する。制御部４１は、レリーズスイッチ１５が半押し操作または全押し操作されている間はステップＳ２０６で待機し、レリーズスイッチ１５が半押し操作または全押し操作されていないとき処理をステップＳ２００に戻す。すなわち、制御部４１は、デジタルカメラ１が撮像動作または撮像準備動作を行っている間は、ステップＳ２００～ステップＳ２０５に関する処理を行わず、焦点検出動作などの撮像準備動作や撮像動作のためにＲＡＭなどのリソースを開放する。これは、撮像後（例えば画像の再生時）にユーザが地磁気センサ１１の検出した方位を必要とする場合に有効である。撮像動作時には、制御部４１は、補正前の地磁気センサの出力と、バリアングルモニタ１２の姿勢情報（すなわち、地磁気センサ１１に対する第１磁石３１および第２磁石３２の外乱情報）とを不図示の記憶媒体等に記憶しておく。そして、制御部４１は、撮像時の状況、すなわち記憶媒体に記憶したこれらの情報を撮像動作後にサーバ２へ送信して、補正情報をサーバ２から取得することにより、撮像操作に影響を与えることなく地磁気センサ１１の出力を補正することができる。なお、バリアングルモニタ１２にライブビュー画像を表示する場合は、例えばユーザの設定により、ユーザが方位情報を視認しない場合には地磁気センサ１１の補正動作を実行しないようにすればよく、ユーザが方位情報を視認したい場合には、地磁気センサ１１の補正動作を実行すればよい。なお、ライブビュー画像表示時の地磁気センサ１１の補正動作の実行に代えて、地磁気センサ１１の分解能を、例えば１６方位表示から８方位表示というように落とすようにしてもよい。 In step S206, the control unit 41 determines whether or not the release switch 15 is operated. The control unit 41 stands by in step S206 while the release switch 15 is half-pressed or fully pressed, and returns to step S200 when the release switch 15 is not half-pressed or fully pressed. That is, while the digital camera 1 is performing the imaging operation or the imaging preparation operation, the control unit 41 does not perform the processes related to Step S200 to Step S205, and performs the RAM for the imaging preparation operation and the imaging operation such as the focus detection operation. Free up resources such as This is effective when the user needs the direction detected by the geomagnetic sensor 11 after imaging (for example, during reproduction of an image). During the imaging operation, the control unit 41 does not show the output of the geomagnetic sensor before correction and the posture information of the vari-angle monitor 12 (that is, disturbance information of the first magnet 31 and the second magnet 32 with respect to the geomagnetic sensor 11). Store in a storage medium or the like. Then, the control unit 41 affects the imaging operation by transmitting the information stored in the storage medium, that is, the information stored in the storage medium to the server 2 after the imaging operation and acquiring the correction information from the server 2. Therefore, the output of the geomagnetic sensor 11 can be corrected. When a live view image is displayed on the vari-angle monitor 12, for example, when the user does not visually recognize the orientation information, the correction operation of the geomagnetic sensor 11 may not be executed. When it is desired to visually recognize the information, the correction operation of the geomagnetic sensor 11 may be executed. Instead of executing the correction operation of the geomagnetic sensor 11 when displaying the live view image, the resolution of the geomagnetic sensor 11 may be reduced, for example, from 16 azimuth display to 8-azimuth display.
　以上説明した実施の形態によれば、次のような作用効果を奏する。
　デジタルカメラ１は、地磁気センサ１１と制御部４１と、通信部１６とを備える。地磁気センサ１１は、地磁気を検出する。制御部４１は、ホール素子３３の出力に基づいて地磁気センサ１１に対する外乱であるバリアングルモニタ１２の姿勢を検出する姿勢検出部４１２と、通信部１６が受信した補正情報に基づいて更新されたオフセットに基づいて地磁気センサ１１の出力信号を補正する出力補正部４１１として機能する。通信部１６は、バリアングルモニタ１２の姿勢に関する情報をサーバ２に送信すると共に、サーバ２がバリアングルモニタ１２の姿勢に関する情報に基づいて出力する地磁気センサ１１のオフセットに関する補正情報を受信する。
　デジタルカメラ１では、サーバ２に地磁気センサ１１のオフセットを演算させることにより、リアルタイムにそのオフセットを更新する場合であっても、デジタルカメラ１の制御部４１の処理負荷が過大にならない。また、デジタルカメラ１の制御部４１の処理負荷を増加させずにサーバ２において複雑な演算を行うことができるため、デジタルカメラ１の内部における磁石等の配置の自由度が向上し、内部の磁石を地磁気センサ１１から遠ざけて配置する必要がなくなり、デジタルカメラ１を小型にすることができる。 According to the embodiment described above, the following operational effects can be obtained.
The digital camera 1 includes a geomagnetic sensor 11, a control unit 41, and a communication unit 16. The geomagnetic sensor 11 detects geomagnetism. The control unit 41 includes an attitude detection unit 412 that detects the attitude of the vari-angle monitor 12 that is a disturbance with respect to the geomagnetic sensor 11 based on the output of the Hall element 33, and an offset that is updated based on the correction information received by the communication unit 16. Functions as an output correction unit 411 that corrects the output signal of the geomagnetic sensor 11 based on The communication unit 16 transmits information related to the attitude of the vari-angle monitor 12 to the server 2 and receives correction information related to the offset of the geomagnetic sensor 11 that the server 2 outputs based on information related to the attitude of the vari-angle monitor 12.
In the digital camera 1, by causing the server 2 to calculate the offset of the geomagnetic sensor 11, the processing load on the control unit 41 of the digital camera 1 does not become excessive even when the offset is updated in real time. Further, since it is possible to perform complicated calculations in the server 2 without increasing the processing load of the control unit 41 of the digital camera 1, the degree of freedom of arrangement of magnets and the like inside the digital camera 1 is improved, and the internal magnets Need not be placed away from the geomagnetic sensor 11, and the digital camera 1 can be downsized.
　以上で説明した実施の形態は、以下のように変形して実施できる。
（変形例１）
　上記の実施の形態では、デジタルカメラ１は、ステップＳ２０３において、姿勢検出部４１２により出力されたバリアングルモニタ１２の姿勢に関する情報をサーバ２へ送信したが、姿勢検出部４１２に入力されたホール素子３３の出力信号をサーバ２へ送信することにしてもよい。この場合、サーバ２は、デジタルカメラ１から送信されたホール素子３３の出力信号に基づいて、バリアングルモニタ１２の姿勢を検出して、地磁気センサ１１のオフセットに関する補正情報を演算することにすればよい。 The embodiment described above can be implemented with the following modifications.
(Modification 1)
In the above-described embodiment, the digital camera 1 transmits the information regarding the posture of the vari-angle monitor 12 output by the posture detection unit 412 to the server 2 in step S203, but the Hall element input to the posture detection unit 412 The 33 output signals may be transmitted to the server 2. In this case, if the server 2 detects the attitude of the vari-angle monitor 12 based on the output signal of the Hall element 33 transmitted from the digital camera 1 and calculates correction information regarding the offset of the geomagnetic sensor 11. Good.
（変形例２）
　サーバ２は、オフセット演算部６１１により演算したオフセットを、デジタルカメラ１が位置する場所に基づいて調整することにしてもよい。例えば、デジタルカメラ１が高圧電線の近傍に位置する場合は、オフセットを調整することが望ましい。この場合、デジタルカメラ１の制御部４１は、ＧＰＳモジュール５１により検出された電波に基づいて、デジタルカメラ１が位置する緯度と経度とを算出して、デジタルカメラ１が位置する緯度と経度に関する位置情報を、サーバ２へ送信する。サーバ２は、デジタルカメラ１の緯度および経度と、オフセットを調整するための調整値とを、予めデータベース化して記憶部６２に記憶しておき、デジタルカメラ１から受信した位置情報に基づいて、オフセットを調整するための調整値をそのデータベースから検索する。そして、サーバ２は、バリアングルモニタ１２の姿勢に関する情報に基づいて演算されたオフセットをその調整値を用いて調整して、調整後のオフセットに関する補正情報をデジタルカメラ１に送信する。また、鉄筋ビルや、鉄橋などの構造物も外乱要因になるため、サーバ２は、ＧＰＳモジュール５１が検出した位置情報に基づき、構造物の外乱を調整するための調整値を記憶部６２に記憶させておくようにしてもよい。 (Modification 2)
The server 2 may adjust the offset calculated by the offset calculation unit 611 based on the location where the digital camera 1 is located. For example, when the digital camera 1 is located in the vicinity of the high voltage electric wire, it is desirable to adjust the offset. In this case, the control unit 41 of the digital camera 1 calculates the latitude and longitude where the digital camera 1 is located based on the radio wave detected by the GPS module 51, and the position relating to the latitude and longitude where the digital camera 1 is located. Information is transmitted to the server 2. The server 2 stores the latitude and longitude of the digital camera 1 and the adjustment value for adjusting the offset in advance in a database and stores it in the storage unit 62. Based on the position information received from the digital camera 1, the server 2 Search the database for adjustment values to adjust Then, the server 2 adjusts the offset calculated based on the information regarding the attitude of the vari-angle monitor 12 using the adjustment value, and transmits correction information regarding the adjusted offset to the digital camera 1. In addition, since structures such as reinforcing steel bars and iron bridges also cause disturbances, the server 2 stores adjustment values for adjusting disturbances of the structures in the storage unit 62 based on the position information detected by the GPS module 51. You may make it leave.
（変形例３）
　上記の実施の形態では、サーバ２は、地磁気センサ１１のオフセットを演算するが、地磁気センサ１１の出力信号をそのオフセットを用いて補正することはしていない。しかし、サーバ２は、地磁気センサ１１の出力信号をそのオフセットを用いて補正することにしてもよい。この場合、デジタルカメラ１は、姿勢検出部４１２により検出されたバリアングルモニタ１２の姿勢に関する情報だけでなく、地磁気センサ１１の検出信号自体もサーバ２へ送信することが望ましい。 (Modification 3)
In the above embodiment, the server 2 calculates the offset of the geomagnetic sensor 11 but does not correct the output signal of the geomagnetic sensor 11 using the offset. However, the server 2 may correct the output signal of the geomagnetic sensor 11 using the offset. In this case, it is desirable that the digital camera 1 transmits not only the information regarding the posture of the vari-angle monitor 12 detected by the posture detection unit 412 but also the detection signal itself of the geomagnetic sensor 11 to the server 2.
（変形例４）
　本実施の形態においては、サーバ２によりバリアングルモニタ１２の移動に起因した地磁気センサ１１のオフセットを演算したが、レンズユニット１４からの外乱に起因するオフセット量を演算してもいい。レンズユニット１４からの外乱としては、フォーカスレンズや、ズームレンズや、防振レンズに起因するものがある。特に、レンズユニット１４が交換レンズの場合は、交換レンズ毎にそのオフセット量が異なり、より複雑な演算が要求されるため、サーバ２のオフセット演算部６１１を用いることにより、デジタルカメラ１の処理量を減らすことができる。レンズユニット１４に起因するオフセット量の演算に関しても図７のフローチャートで説明したようにレリーズスイッチ１５の操作時は避けて、撮像時のフォーカスレンズ、防振レンズ、ズームレンズの位置情報や、制御部４１から指令され駆動量を一時的に記憶するようにしてもよい。なお、レンズユニット１４に起因するオフセット量の演算は、バリアングルモニタ１２が収納部２１に収納されている場合でも行うようにしてよい。 (Modification 4)
In the present embodiment, the offset of the geomagnetic sensor 11 caused by the movement of the vari-angle monitor 12 is calculated by the server 2, but the offset amount caused by the disturbance from the lens unit 14 may be calculated. The disturbance from the lens unit 14 is caused by a focus lens, a zoom lens, or an anti-vibration lens. In particular, when the lens unit 14 is an interchangeable lens, the amount of offset differs for each interchangeable lens, and more complicated computation is required. Therefore, the processing amount of the digital camera 1 can be obtained by using the offset computation unit 611 of the server 2. Can be reduced. The calculation of the offset amount caused by the lens unit 14 is also avoided when the release switch 15 is operated as described in the flowchart of FIG. 7, and the position information of the focus lens, the vibration proof lens, the zoom lens at the time of imaging, and the control unit The drive amount may be temporarily stored in response to a command from 41. The calculation of the offset amount caused by the lens unit 14 may be performed even when the vari-angle monitor 12 is stored in the storage unit 21.
（変形例５）
　地磁気センサ１１は、デジタルカメラ１に内蔵されているものとしたが、デジタルカメラ１のホットシュー（不図示）などに装着されるものとしてもよい。また、本実施の形態は、地磁気センサ１１以外のセンサ、例えば、デジタルカメラ１やレンズユニット１４の手振れを検出するためのジャイロセンサなどにも適用することができる。ジャイロセンサのオフセット（基準信号）をサーバ２にて演算する場合は、例えばジャイロセンサの温度などを温度センサを用いて検出して、温度に関する情報をサーバ２に送信することにしてもよい。この場合に、デジタルカメラ１により動画撮影を行う場合は、不図示の撮像素子や、不図示の画像処理部が発熱してしまい地磁気センサ１１もその影響により検出誤差を生じる虞がある。このため、制御部４１は、地磁気センサ１１の温度を検出して、この検出した温度に関する情報を通信部１６によりサーバ２に送信するようにしてもよい。
　また、ＧＰＳモジュール５１は、ＧＰＳ衛星からの電波を受信するため、電離層の影響、水蒸気の影響、気圧の影響といった季節や場所による影響を受ける可能性がある。サーバ２は、ＧＰＳモジュール５１が検出した位置情報を調整するための調整値を記憶部６２に記憶させておくようにしてもよい。 (Modification 5)
Although the geomagnetic sensor 11 is built in the digital camera 1, the geomagnetic sensor 11 may be mounted on a hot shoe (not shown) of the digital camera 1. The present embodiment can also be applied to sensors other than the geomagnetic sensor 11, such as a gyro sensor for detecting camera shake of the digital camera 1 or the lens unit 14. When the server 2 calculates the offset (reference signal) of the gyro sensor, for example, the temperature of the gyro sensor may be detected using the temperature sensor, and information about the temperature may be transmitted to the server 2. In this case, when moving image shooting is performed with the digital camera 1, an imaging element (not shown) or an image processing unit (not shown) generates heat, and the geomagnetic sensor 11 may cause a detection error due to the influence. For this reason, the control unit 41 may detect the temperature of the geomagnetic sensor 11 and transmit information regarding the detected temperature to the server 2 through the communication unit 16.
Further, since the GPS module 51 receives radio waves from GPS satellites, there is a possibility that the GPS module 51 may be affected by the season and place such as the influence of the ionosphere, the influence of water vapor, and the influence of atmospheric pressure. The server 2 may store an adjustment value for adjusting the position information detected by the GPS module 51 in the storage unit 62.
（変形例６）
　本実施形態は、デジタルカメラ１だけでなく、他の電子機器にも適用することができる。例えば、折り畳み式の携帯電話やスマートフォンなどにも適用することができる。また、電子機器と通信を行う外部機器は、サーバ２だけに限定しない。例えば、デジタルカメラ１などの電子機器と近距離無線通信で通信可能な情報端末などであってもよい。 (Modification 6)
The present embodiment can be applied not only to the digital camera 1 but also to other electronic devices. For example, the present invention can be applied to a foldable mobile phone or a smartphone. The external device that communicates with the electronic device is not limited to the server 2 alone. For example, an information terminal that can communicate with an electronic device such as the digital camera 1 by near field communication may be used.
　以上で説明した実施の形態や変形例はあくまで例示に過ぎず、発明の特徴が損なわれない限り本発明はこれらの内容に限定されない。また、以上で説明した実施の形態や変形例は発明の特徴が損なわれない限り組み合わせて実行してもよい。 The embodiments and modifications described above are merely examples, and the present invention is not limited to these contents as long as the features of the invention are not impaired. Further, the embodiments and modifications described above may be combined and executed as long as the features of the invention are not impaired.
　次の優先権基礎出願の開示内容は引用文としてここに組み込まれる。
　日本国特許出願２０１２年第２７９１８８号（２０１２年１２月２１日出願） The disclosure of the following priority application is hereby incorporated by reference.
Japanese Patent Application No. 2012-279188 (filed on Dec. 21, 2012)
　　１　デジタルカメラ
　　２　サーバ
　１１　地磁気センサ
　１２　バリアングルモニタ
　１３　多軸ヒンジ部
　１６　通信部
　３１　第１磁石
　３２　第２磁石
　３３　ホール素子
　４０　メイン基板
　４１　制御部
　４２　メモリ
１００　補正システム
４１１　出力補正部
４１２　姿勢検出部
６１１　オフセット演算部 DESCRIPTION OF SYMBOLS 1 Digital camera 2 Server 11 Geomagnetic sensor 12 Vari-angle monitor 13 Multi-axis hinge part 16 Communication part 31 1st magnet 32 2nd magnet 33 Hall element 40 Main board 41 Control part 42 Memory 100 Correction system 411 Output correction part 412 Attitude detection part 611 Offset calculation unit

Claims (19)

  1. 　第１の装置の所定の物理量を検出する第１検出部と、
    　前記第１検出部による検出を行う際に、前記第１の装置に起因する前記第１検出部の検出誤差に関連する情報を検出する情報検出部と、
    　前記情報検出部が検出した情報を外部機器に送信し、前記外部機器より補正情報を受信する通信部と、
    　前記通信部が受信した前記補正情報に基づいて、前記第１検出部の検出結果を補正する補正部と、を備える電子機器。     A first detector for detecting a predetermined physical quantity of the first device;
    An information detection unit that detects information related to a detection error of the first detection unit caused by the first device when performing detection by the first detection unit;
    A communication unit that transmits information detected by the information detection unit to an external device and receives correction information from the external device;
    An electronic apparatus comprising: a correction unit that corrects a detection result of the first detection unit based on the correction information received by the communication unit.
  2. 　請求項１に記載の電子機器において、
    　前記情報検出部は、磁場の変化に関する情報を前記第１検出部の検出誤差に関連する情報として検出する電子機器。     The electronic device according to claim 1,
    The information detection unit is an electronic device that detects information related to a change in a magnetic field as information related to a detection error of the first detection unit.
  3. 　請求項１または２に記載の電子機器において、
    　前記第１の装置は、移動可能な移動ユニットであって、
    　前記情報検出部は、前記移動ユニットの位置および姿勢の少なくとも一方を検出する電子機器。     The electronic device according to claim 1 or 2,
    The first device is a movable mobile unit,
    The information detection unit is an electronic device that detects at least one of a position and a posture of the moving unit.
  4. 　請求項１から３のいずれか一項に記載の電子機器において、
    　前記情報検出部は、前記電子機器に着脱可能な第２の装置に起因した検出誤差に関連する情報を検出する電子機器。     The electronic device according to any one of claims 1 to 3,
    The information detection unit is an electronic device that detects information related to a detection error caused by a second device that is detachable from the electronic device.
  5. 　請求項１から４のいずれか一項に記載の電子機器において、
    　前記第１検出部は、前記第１の装置に着脱可能である電子機器。     The electronic device according to any one of claims 1 to 4,
    The first detection unit is an electronic device that can be attached to and detached from the first device.
  6. 　請求項１から５のいずれか一項に記載の電子機器において、
    　前記第１検出部は、地磁気センサを有する電子機器。     The electronic device according to any one of claims 1 to 5,
    The first detection unit is an electronic device having a geomagnetic sensor.
  7. 　請求項１から６のいずれか一項に記載の電子機器において、
    　前記電子機器の位置情報を検出する位置検出部を備え、
    　前記通信部は、前記外部機器に前記位置検出部が検出した前記位置情報を送信する電子機器。     In the electronic device as described in any one of Claim 1 to 6,
    A position detector for detecting position information of the electronic device;
    The communication unit is an electronic device that transmits the position information detected by the position detection unit to the external device.
  8. 　請求項７に記載の電子機器において、
    　前記通信部は、前記外部機器より前記位置情報に起因した補正情報を受信する電子機器。     The electronic device according to claim 7,
    The communication unit is an electronic device that receives correction information resulting from the position information from the external device.
  9. 　請求項１から８のいずれか一項に記載の電子機器において、
    　被写体を撮像する撮像部を備える電子機器。     The electronic device according to any one of claims 1 to 8,
    An electronic device including an imaging unit that images a subject.
  10. 　請求項９に記載の電子機器において、
    　前記撮像部による撮像中または撮影準備中は、前記通信部による前記検出誤差に関連する情報の送信を禁止するように制御する制御部を備える電子機器。     The electronic device according to claim 9,
    An electronic apparatus including a control unit that performs control so as to prohibit transmission of information related to the detection error by the communication unit during imaging by the imaging unit or during imaging preparation.
  11. 　請求項１０に記載の電子機器において
    　前記撮像部に撮像と撮影準備との少なくとも一方を指示する指示部を備え、
    　前記制御部は、前記指示部の指示に応じて、前記通信部による前記検出誤差に関連する情報の送信を禁止するように制御する電子機器。     The electronic device according to claim 10, further comprising an instruction unit that instructs the imaging unit to perform at least one of imaging and shooting preparation.
    The control unit is an electronic device that controls to prohibit transmission of information related to the detection error by the communication unit in accordance with an instruction from the instruction unit.
  12. 　請求項１０または１１に記載の電子機器において、
    　前記制御部は、前記電子機器が再生モードまたは編集モードの際に、前記通信部による前記検出誤差に関連する情報の送信を禁止するように制御する電子機器。     The electronic device according to claim 10 or 11,
    The control unit is an electronic device that controls to prohibit transmission of information related to the detection error by the communication unit when the electronic device is in a reproduction mode or an editing mode.
  13. 　請求項１から１２のいずれか一項に記載の電子機器において、
    　前記第１検出部の温度を検出する温度検出部を備える電子機器。     The electronic device according to any one of claims 1 to 12,
    An electronic apparatus comprising a temperature detection unit that detects a temperature of the first detection unit.
  14. 　所定の物理量を検出する第１検出部と、
    　前記第１検出部に対する外乱に関する情報を検出する外乱検出部と、
    　前記外乱検出部が検出した前記外乱に関する情報を外部機器に送信し、前記外部機器が当該外乱に関する情報に基づいて出力する補正情報を受信する通信部と、
    　前記通信部が受信した前記補正情報に基づいて、前記第１検出部の検出結果を補正する補正部と、
    　を備える電子機器。     A first detection unit for detecting a predetermined physical quantity;
    A disturbance detection unit for detecting information regarding disturbance to the first detection unit;
    A communication unit that transmits information about the disturbance detected by the disturbance detection unit to an external device, and receives correction information that the external device outputs based on the information about the disturbance; and
    A correction unit that corrects a detection result of the first detection unit based on the correction information received by the communication unit;
    Electronic equipment comprising.
  15. 　請求項１４に記載の電子機器において、
    　移動可能であり、磁場を発生させる磁場発生部を備え、
    　前記外乱検出部は、前記磁場発生部が発生させる磁場の変化に関する情報を検出する電子機器。     The electronic device according to claim 14,
    It is movable and has a magnetic field generator that generates a magnetic field.
    The disturbance detection unit is an electronic device that detects information related to a change in a magnetic field generated by the magnetic field generation unit.
  16. 　請求項１５に記載の電子機器において、
    　前記外乱検出部は、前記磁場発生部が発生させる磁場の変化に関する情報に基づいて、移動により変化した前記磁場発生部の姿勢を、前記外乱に関する情報として検出する電子機器。     The electronic device according to claim 15,
    The said disturbance detection part is an electronic device which detects the attitude | position of the said magnetic field generation part changed by the movement as information regarding the said disturbance based on the information regarding the change of the magnetic field which the said magnetic field generation part generates.
  17. 　請求項１４から１６のいずれか一項に記載の電子機器において、
    　前記第１検出部は、前記物理量として地磁気の強さを検出する地磁気センサであり、
    　前記補正情報は、前記地磁気センサのオフセットに関する情報であり、
    　前記補正部は、前記オフセットに基づいて、前記地磁気センサの検出結果を補正する電子機器。     The electronic device according to any one of claims 14 to 16,
    The first detection unit is a geomagnetic sensor that detects the strength of geomagnetism as the physical quantity,
    The correction information is information relating to the offset of the geomagnetic sensor,
    The correction unit is an electronic device that corrects a detection result of the geomagnetic sensor based on the offset.
  18. 　請求項１４から１７のいずれか一項に記載の電子機器において、
    　前記電子機器の位置に関する情報を検出する位置情報検出部を備え、
    　前記通信部は、前記位置情報検出部により検出された前記位置に関する情報を前記外部機器に送信して、前記外乱検出部が検出した前記外乱に関する情報と当該位置に関する情報とに基づいて前記外部機器が出力する前記補正情報を受信する電子機器。     The electronic device according to any one of claims 14 to 17,
    A position information detection unit for detecting information related to the position of the electronic device;
    The communication unit transmits information on the position detected by the position information detection unit to the external device, and the external device is based on the information on the disturbance detected by the disturbance detection unit and the information on the position. An electronic device that receives the correction information output by the device.
  19. 　請求項１４から１８のいずれか一項に記載の電子機器において、
    　被写体像を撮像する撮像部を備え、
    　前記通信部は、前記撮像部による撮像中または撮影準備中は、前記外乱検出部が検出した前記外乱に関する情報を前記外部機器に送信しない電子機器。     The electronic device according to any one of claims 14 to 18,
    An imaging unit for capturing a subject image;
    The communication unit is an electronic device that does not transmit information regarding the disturbance detected by the disturbance detection unit to the external device during imaging by the imaging unit or during imaging preparation.
PCT/JP2013/072719 2012-12-21 2013-08-26 Electronic apparatus WO2014097680A1 (en)

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JP2013142555A (en) * 2012-01-06 2013-07-22 Yamaha Corp Server apparatus and terminal device

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Publication number Priority date Publication date Assignee Title
JP2003156335A (en) * 2001-11-22 2003-05-30 Yamaha Corp Electronic equipment
JP2005291934A (en) * 2004-03-31 2005-10-20 Kyocera Corp Portable communication terminal and error correction method of terrestrial magnetism sensor thereof
JP2011135165A (en) * 2009-12-22 2011-07-07 Sony Corp Imaging device, method of processing orientation information, and program
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