JP2013258815A - Charging control device, system, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in which: an electronic apparatus may not be able to appropriately perform GPS positioning depending on charging to the electronic apparatus.SOLUTION: A charging control device controls charging to an electronic apparatus, and includes a charging control unit that reduces, when a GPS reception unit in the electronic apparatus receives GPS signals, charging power supplied to the electronic apparatus as compared with the case when the GPS reception unit does not receive the GPS signals. A program, when the GPS reception unit in the electronic apparatus receives the GPS signals, causes a computer to perform a charging control step of reducing the charging power supplied to the electronic apparatus as compared with the case when the GPS reception unit does not receive the GPS signals.

Description

  The present invention relates to a charge control device, a system, and a program.

A camera capable of recording information obtained by a GPS receiver together with a captured image on a recording medium is known (see, for example, Patent Document 1).
[Prior art documents]
[Patent Literature]
[Patent Document 1] JP-A-8-286257

  Due to noise generated by charging of the electronic device, the GPS receiver included in the electronic device may not be able to accurately receive the GPS signal. Thus, there existed a subject that appropriate positioning might be prevented by charge of an electronic device.

  In the first aspect of the present invention, a charging control device for controlling charging of an electronic device, wherein the GPS receiving unit receives the GPS signal when the GPS receiving unit of the electronic device receives the GPS signal. A charging control unit is provided that reduces the charging power supplied to the electronic device as compared with the case where the electronic device is not receiving.

  In the second aspect of the present invention, a wireless charger for wirelessly charging an electronic device, comprising a positioning control unit for controlling the frequency of positioning by receiving a GPS signal in a GPS receiving unit of the electronic device, The receiving unit performs positioning at a first frequency during a period not including the period during which the electronic device is charged, and the positioning control unit is configured to perform a positioning lower than the first frequency during a period not including the period during which the electronic device is charged. The GPS receiver is positioned twice.

  In the third aspect of the present invention, the program is supplied to the electronic device when the GPS receiving unit of the electronic device is receiving a GPS signal than when the GPS receiving unit is not receiving the GPS signal. And causing the computer to execute a charging control step for reducing the charging power.

  According to a fourth aspect of the present invention, there is provided a program for a wireless charger for wirelessly charging an electronic device, wherein a positioning control step for controlling a frequency of positioning by receiving a GPS signal in a GPS receiver included in the electronic device is performed by a computer The GPS receiver performs positioning at a first frequency during a period that does not include the period during which the electronic device is charged, and the positioning control step performs the first measurement during a period that does not include the period during which the electronic device is charged. The GPS receiver is positioned at a second frequency lower than one frequency.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

1 illustrates an example of a system 5 in one embodiment. An example of a block configuration of the camera 10 and the charger 20 is shown. An example of the time sequence of the GPS positioning operation of the camera 10 and the magnetic field output from the charger 20 is shown. A processing flow from the start to the end of the camera 10 is shown. An example of a flow when the camera 10 performs a communication operation is shown. An example of a flow when the camera 10 performs an imaging operation is shown. An example of the flow when a full charge event occurs is shown. The processing flow from starting to the end of the charger 20 is shown.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 illustrates an example of a system 5 in one embodiment. The system 5 includes a camera 10, a charger 20, and a mobile terminal 30. The system 5 can be applied to a system in a moving vehicle such as an automobile or a train as an example.

  The camera 10 has a lens unit 120 and a camera body 130. The camera 10 is an interchangeable lens camera as an example, and the lens unit 120 is detachably attached to the camera body 130. The camera 10 has a positioning function using GPS (Global Positioning System). That is, the camera 10 has a function of receiving GPS signals from a plurality of GPS satellites and positioning the camera 10. The camera 10 performs positioning at a predetermined time interval. For example, the camera 10 performs positioning at intervals of 5 seconds when not charging.

  The charger 20 supplies charging power to the camera 10. The camera 10 is placed on the charger 20 and charged. The charger 20 charges the camera 10 by transmitting charging power to the camera 10 in a wireless format. Specifically, the charger 20 transmits electric power to the camera 10 by an electromagnetic induction method. The charger 20 includes a power cable 23 connected to an AC power source, and a switch 21 that turns ON / OFF the power supply from the AC power source to the charger 20. The upper surface 29 of the charger 20 has a flat portion on which the camera 10 is placed. The charger 20 can wirelessly charge the camera 10 when the switch 21 of the charger 20 is ON and the camera 10 is placed on the upper surface 29.

  The charger 20 lengthens the time interval of positioning by the camera 10 when a magnetic field is mainly generated to charge the camera 10. For example, the charger 20 causes the camera 10 to perform positioning at 1 hour intervals. The charger 20 temporarily stops the charging of the camera 10 during a period in which the camera 10 performs positioning. Specifically, the charger 20 temporarily stops the generation of a magnetic field for charging the camera 10 when the camera 10 causes the positioning. For this reason, the camera 10 can receive a GPS signal without receiving noise due to a magnetic field or the like generated from the charger 20. Therefore, the camera 10 can perform the positioning properly even during the charging period. In addition, since the camera 10 is not easily affected by noise, the camera 10 can receive a GPS signal in a relatively short time. Moreover, since the time interval of the positioning operation in the camera 10 is lengthened, charging can be completed early.

  The camera 10, the charger 20, and the mobile terminal 30 each have a wireless communication function. The portable terminal 30 further has a positioning function. The portable terminal 30 may have a positioning function using GPS. The portable terminal 30 transmits position information indicating the position acquired by positioning to the charger 20 by wireless communication. The camera 10 attaches the latest position information already acquired by the GPS function to the image data generated by imaging during the charging period, and transmits the image data to the charger 20 by wireless communication. The charger 20 compares the position information attached to the image data acquired from the camera 10 with the position information received from the mobile terminal 30 and determines whether the position information attached to the image data indicates an appropriate position. Determine whether. When the charger 20 determines that the position information attached to the image data does not indicate an appropriate position, the charger 20 attaches the position information received from the portable terminal 30 to the image data and transmits the image data to the camera 10. When the charger 20 determines that the position information attached to the image data indicates an appropriate position, the charger 20 transmits the image data to the camera 10 by wireless communication without changing the position information attached to the image data. . The camera 10 receives image data attached with position information from the charger 20 and records it on a recording medium such as a memory card. For this reason, according to the system 5, it is possible to provide image data to which position information indicating an appropriate position is attached while positioning the camera 10 at a long time interval during the charging period.

  FIG. 2 shows an example of a block configuration of the camera 10 and the charger 20. This figure shows a block configuration of the camera 10 with the lens unit 120 mounted.

  The lens unit 120 includes a lens mount having a lens mount contact 121. The camera body 130 includes a camera mount having a camera mount contact 131. When the lens mount and the camera mount are engaged and the lens unit 120 and the camera body 130 are integrated, the lens mount contact 121 and the camera mount contact 131 are connected. The lens MPU 123 is connected to the camera MPU 140 via the lens mount contact 121 and the camera mount contact 131, and controls the lens unit 120 in cooperation with each other while communicating with each other.

  The lens unit 120 includes a lens group 122, a lens driving unit 124, and a lens MPU 123. The subject light passes through the lens group 122 as an optical system of the lens unit 120 along the optical axis and enters the camera body 130. The main mirror 145 can take an oblique state where the main mirror 145 is obliquely provided in the subject light flux centered on the optical axis of the lens group 122 and a retreat state where the main mirror 145 is retracted from the subject light flux.

  When the main mirror 145 is in an oblique state, the main mirror 145 reflects a part of the subject light flux that has passed through the lens group 122. Specifically, the region near the optical axis of the main mirror 145 in the oblique state is formed as a half mirror. Part of the subject luminous flux incident on the region near the optical axis is transmitted and the other part is reflected. The subject luminous flux reflected by the main mirror 145 is guided to the finder unit 147 and observed by the user. The user can check the composition and the like through the finder unit 147. The finder unit 147 may include a display device that presents various types of information including information indicating the setting state of the imaging operation to the user, along with the subject image based on the subject luminous flux.

  Part of the subject luminous flux that has passed through the region near the optical axis of the main mirror 145 is reflected by the sub mirror 146 and guided to the AF unit 142. The AF unit 142 includes a plurality of photoelectric conversion element arrays that receive a subject light beam. The photoelectric conversion element array outputs a signal with a phase match when in a focused state, and outputs a signal with a phase shift when in a front pin state or a rear pin state. The amount of phase shift corresponds to the amount of shift from the focus state. The AF unit 142 detects a phase difference by performing a correlation operation on the output of the photoelectric conversion element array, and outputs a phase difference signal indicating the phase difference to the camera MPU 140.

  The focus state of the lens group 122 is adjusted using the phase difference signal from the AF unit 142 under the control of the camera MPU 140 and the like. For example, the target position of the focus lens included in the lens group 122 is determined by the camera MPU 140 based on the focus state detected from the phase difference signal, and the position of the focus lens is controlled by the control of the lens MPU 123 toward the determined target position. Is done. Specifically, the lens MPU 123 controls the lens driving unit 124 including a focus lens motor as an example, and moves the focus lens constituting the lens group 122. As described above, when the main mirror 145 is down and in the inclined state, the focus state of the lens group 122 is detected by the phase difference detection method, and the focus adjustment is performed. The AF unit 142 is provided with photoelectric conversion element arrays at a plurality of positions respectively corresponding to the plurality of regions in order to adjust the focus state in each of the plurality of regions in the subject image.

  The photometric element 144 receives a part of the light beam guided to the optical viewfinder. The luminance information of the subject detected by the photoelectric conversion element included in the photometric element 144 is output to the camera MPU 140. The camera MPU 140 calculates an AE evaluation value based on the luminance information acquired from the photometric element 144 and uses it for exposure control.

  When the main mirror 145 retracts from the subject light beam, the sub mirror 146 retracts from the subject light beam in conjunction with the main mirror 145. A focal plane shutter 143 as an example of a mechanical shutter is provided on the lens group 122 side of the image sensor 132. When the main mirror 145 is in the retracted state and the focal plane shutter 143 is in the open state, the subject light flux that has passed through the lens group 122 is incident on the light receiving surface of the image sensor 132.

  The imaging element 132 functions as an imaging unit. The image sensor 132 captures an image of the subject using the subject light flux that has passed through the lens group 122. Examples of the image sensor 132 include a solid-state image sensor such as a CCD sensor or a CMOS sensor. The imaging element 132 has a plurality of photoelectric conversion elements that receive the subject light flux, and outputs an analog signal corresponding to the amount of accumulated charge generated by each of the plurality of photoelectric conversion elements to the analog processing unit 133. The analog processing unit 133 performs analog processing such as sensitivity correction processing and OB clamping processing on the analog signal output from the image sensor 132 and outputs the analog signal to the A / D converter 134. The A / D converter 134 converts the analog signal output from the analog processing unit 133 into a digital signal representing image data and outputs the digital signal. The image sensor 132, the analog processing unit 133, and the A / D converter 134 are driven by a driving unit 148 that receives an instruction from the camera MPU 140.

  Image data output as a digital signal from the A / D converter 134 is input to the ASIC 135. The ASIC 135 is an integrated circuit in which circuits related to the image processing function are integrated into one. The ASIC 135 uses at least a part of the memory area of the RAM 136 as an example of a volatile memory as a buffer area for temporarily storing image data, and performs various image processing on the image data stored in the RAM 136. Apply. Examples of the image processing by the ASIC 135 include defective pixel correction, white balance correction, color interpolation processing, color correction, gamma correction, contour enhancement processing, and image data compression processing. When the image sensor 132 continuously captures images, sequentially output image data is sequentially stored in the buffer area. A plurality of image data obtained by continuously capturing images by the image sensor 132 is sequentially stored in the buffer area as image data of continuous still images or image data of each image constituting the moving image. The RAM 136 also functions as a frame memory that temporarily stores frames when the ASIC 135 processes moving image data.

  Examples of image processing in the ASIC 135 include processing for generating image data for recording, processing for generating image data for display, and image data processing for automatic focus adjustment (AF). Further, the image processing in the ASIC 135 includes processing for detecting the contrast amount for AF processing and the like. Specifically, the ASIC 135 detects the contrast amount from the image data and supplies it to the camera MPU 140. For example, the ASIC 135 detects the contrast amount from each of a plurality of image data obtained by imaging with the focus lens positioned at different positions in the optical axis direction. The camera MPU 140 adjusts the focus state of the lens group 122 based on the detected contrast amount and the position of the focus lens. For example, the camera MPU 140 determines the target position of the focus lens so as to increase the amount of contrast, and causes the lens MPU 123 to control the position of the focus lens toward the determined target position. As described above, when the main mirror 145 is up and in the retracted state, the focus state of the lens group 122 is detected by the contrast detection method, and the focus adjustment is performed. As described above, the camera MPU 140 performs the focus adjustment of the lens group 122 in cooperation with the ASIC 135 and the lens MPU 123.

  When recording the image data output from the A / D converter 134, the ASIC 135 converts the image data into a standardized image format. For example, the ASIC 135 performs a compression process for generating still image data obtained by encoding still image data in an encoding format compliant with a standard such as JPEG. Further, the ASIC 135 converts a plurality of frames into QuickTime, H.264, and the like. H.264, MPEG2, Motion JPEG, etc. A compression process for generating moving image data encoded by an encoding method compliant with a standard such as JPEG is performed. The ASIC 135 generates, in the RAM 136, image data with position information acquired by the GPS unit 158 described later. For example, the ASIC 135 generates image data in Exif format.

  The ASIC 135 outputs and records the generated image data such as still image data and moving image data to an external memory 180 as an example of a nonvolatile recording medium. For example, the ASIC 135 records in the external memory 180 as a still image file and a moving image file. An example of the external memory 180 is a semiconductor memory such as a flash memory. Specifically, as the external memory 180, various memory cards such as an SD memory card, a CF storage card, and an XQD memory card can be exemplified. The image data stored in the RAM 136 is transferred to the external memory 180 through the recording medium IF 150. Further, the image data recorded in the external memory 180 is transferred to the RAM 136 through the recording medium IF 150 and used for processing such as display. Examples of the recording medium IF 150 include a card controller that controls access to the above-described memory card.

  The ASIC 135 generates display image data in parallel with the generation of recording image data. For example, the ASIC 135 generates display image data to be displayed on the display unit 138 during a so-called live view operation. Further, at the time of image reproduction, the ASIC 135 generates image data for display from the image data read from the external memory 180. The generated image data for display is converted into an analog signal under the control of the display control unit 137 and displayed on the display unit 138 such as a liquid crystal display. In addition to the image display based on the image data obtained by imaging, various menu items relating to various settings of the camera 10 are also displayed under the control of the ASIC 135 and the display control unit 137 without displaying the image based on the image data. 138.

  The GPS unit 158 as an example of the position detection device includes an antenna and a geodetic calculator. The GPS unit 158 receives GPS signals transmitted from a plurality of GPS satellites with an antenna, and performs a geodetic calculation by a geodetic calculator. The GPS unit 158 outputs position information acquired by geodetic calculation as data. Examples of position information include latitude, longitude, altitude information, and positioning time information. The position information output by the GPS unit 158 is recorded in the system memory 139. The position information stored in the system memory 139 is rewritten every time the GPS unit 158 acquires position information, and is updated as position information indicating the current location of the camera 10. The ASIC 135 records the position information recorded in the system memory 139 in the external memory 180 as an image file together with the image data.

  The camera 10 is controlled directly or indirectly by the camera MPU 140 and the ASIC 135 including the control described above. Constants, parameters such as variables, programs, and the like necessary for the operation of the camera 10 are stored in the system memory 139. The system memory 139 is an electrically erasable / storable nonvolatile memory, and is configured by, for example, a flash ROM, an EEPROM, or the like. The system memory 139 stores parameters, programs, and the like so that they are not lost even when the camera 10 is not operating. Parameters, programs, and the like stored in the system memory 139 are expanded in the RAM 136 and used for controlling the camera 10. The ASIC 135, the RAM 136, the system memory 139, the display control unit 137, the camera MPU 140, the GPS unit 158, and the short-range communication unit 170 in the camera body 130 are connected to each other via a connection interface 149 such as a bus and exchange various data. To do.

  The operation input unit 141 receives an operation from the user. The operation input unit 141 includes a release button. In addition, the operation input unit 141 includes various operation members such as a playback button, a live view switch, a moving image button, and a power switch. Further, the operation input unit 141 may include an input member that is integrated with the display unit 138 as a touch panel or the like. The camera MPU 140 detects that the operation input unit 141 has been operated, and executes an operation corresponding to the operation. For example, the camera MPU 140 controls each unit of the camera 10 so as to execute an imaging operation when a release button is pressed. In addition, the camera MPU 140 controls each unit of the camera 10 to perform an operation according to the menu item displayed on the display unit 138 and the operation content when an input member mounted as a touch panel is operated.

  Each part of the camera main body 130, each part of the lens unit 120, and the external memory 180 are supplied with power from the power supply 190 through the power supply circuit 192 under the control of the camera MPU 140. The power source 190 includes a secondary battery 196 such as a nickel metal hydride battery or a lithium ion battery, and a power receiving circuit 194. The power source 190 may be a battery pack in which elements including the secondary battery 196 and the power receiving circuit 194 are packaged. The power source 190 is detachably attached to the camera body 130.

  The power receiving circuit 194 converts the magnetic field energy generated by the charger 20 into power energy, and charges the secondary battery 196 using the generated power as charging power. For example, the power receiving circuit 194 includes a power receiving coil that converts magnetic field energy into electric power energy. The power receiving circuit 194 includes a circuit that detects the remaining capacity of the secondary battery 196. Information indicating the remaining capacity is output to the camera MPU 140 through the power supply circuit 192.

  The power generated in the power receiving circuit 194 may be supplied not only to the secondary battery 196 but also to the power supply circuit 192 and supplied to each part of the camera 10 via the power supply circuit 192. That is, the power receiving circuit 194 may charge the secondary battery 196 with the power received from the power feeding circuit 24 and supply power to each part of the camera 10.

  The short-range communication unit 170 has a wireless communication function with the charger 20. The short-range communication unit 170 transmits information of the camera 10, image data, and the like to the short-range communication unit 28 of the charger 20 described later by wireless communication. The information about the camera 10 includes information indicating whether or not it has a GPS function. Further, the short-range communication unit 170 receives information, image data, and the like of the charger 20 from the short-range communication unit 28 by wireless communication. For wireless communication between the short-range communication unit 170 and the short-range communication unit 28, a proximity wireless communication standard such as TransferJet, a short-range wireless communication standard such as Bluetooth (registered trademark), a wireless LAN standard such as IEEE 801.11. Wireless communication in accordance with various communication standards can be applied.

  The charger 20 includes a switch 21, a power feeding circuit 24, an MPU 22, a power supply circuit 26, a short-range communication unit 28, and a wireless communication unit 27. When the switch 21 is in the ON state, AC power is supplied to the power circuit 26 from the outside of the charger 20 through the power cable 23. The power supply circuit 26 supplies power to each part of the charger 20. The MPU 22 controls each part of the charger 20.

  The power feeding circuit 24 mainly generates a magnetic field using the power supplied from the power supply circuit 26. For example, the power supply circuit 24 includes a power supply coil that generates a magnetic field from the current supplied from the power supply circuit 26. The magnetic field energy generated in the power feeding circuit 24 is transmitted to the power receiving circuit 194 through the space, and is converted into electric power energy in the power receiving circuit 194.

  The short-range communication unit 28 is responsible for wireless communication with the camera 10. For example, the short-range communication unit 28 acquires information about the camera 10 from the short-range communication unit 170 and supplies the information to the MPU 22. In addition, image data is received from the short-range communication unit 170 and supplied to the MPU 22.

  When the charging power is supplied to the camera 10, the MPU 22 transmits an instruction to perform the positioning operation of the camera 10 via the short-range communication unit 28. The MPU 22 causes the camera 10 to perform positioning at a longer time interval than when the camera 10 is not charged. Further, the MPU 22 causes the power supply circuit 24 to temporarily stop the generation of the magnetic field, and then causes the camera 10 to perform positioning.

  The wireless communication unit 27 is responsible for wireless communication with the mobile terminal 30. The wireless communication unit 27 transmits a request for providing position information to the mobile terminal 30 by wireless communication, and receives the position information from the mobile terminal 30 by wireless communication. For wireless communication between the wireless communication unit 27 and the portable terminal 30, wireless communication in accordance with various communication standards such as a short-range wireless communication standard such as Bluetooth (registered trademark) or a wireless LAN of IEEE801.11 standard can be applied. Based on the position information acquired from the mobile terminal 30, the MPU 22 determines whether or not the position indicated by the position information attached to the image data acquired from the camera 10 is appropriate. When the position indicated by the position information attached to the image data is not appropriate, the MPU 22 attaches the position information acquired from the mobile terminal 30 to the image data and transmits it to the camera 10 via the wireless communication unit 27.

  FIG. 3 shows an example of the time sequence of the GPS positioning operation of the camera 10 and the magnetic field output from the charger 20. When the camera 10 is not mounted on the charger 20 or when the camera 10 is not mounted on the charger 20 in the power-on state, the camera MPU 140 performs positioning on the GPS unit 158 at a time interval of 5 seconds. Let it be done.

  Note that the charger 20 may detect whether the camera 10 is placed on the upper surface 29 by a load sensor, an optical sensor, an ultrasonic sensor, or the like when the power is on. When the signal indicating the detection result of the camera 10 is not supplied from the charger 20, the camera MPU 140 causes the GPS unit 158 to perform positioning at a time interval of 5 seconds.

  In this figure, the GPS unit 158 performs a positioning operation from each timing of time t1, time t2, time t3, and time t4. For example, the GPS unit 158 starts the first positioning operation in the drawing from time t1. For example, the GPS unit 158 starts receiving GPS signals from time t1. When the GPS unit 158 receives information required for geodetic calculation, the GPS unit 158 performs geodetic calculation and acquires position information of the GPS unit 158. Subsequently, the GPS unit 158 performs the second positioning operation from time t2 after 5 seconds from the end of the first positioning operation. Specifically, from time t2, a positioning operation similar to the first time is performed, and position information is acquired. The position information acquired in each positioning operation is recorded in the system memory 139. The position information is overwritten and recorded in the system memory 139 each time it is acquired. Note that the GPS unit 158 may perform the second positioning operation from the time 5 seconds after the time t1.

  In this figure, after the positioning operation from time t4, when the camera 10 is placed on the charger 20 in which the switch 21 is ON, charging from the charger 20 is started. Specifically, when the camera MPU 140 detects the charger 20 in which the switch 21 is ON, the camera MPU 140 transmits a power supply start request to the charger 20 via the short-range communication unit 170 and starts the supply of power from the charger 20. Request. When the MPU 22 receives the power supply start request, the MPU 22 transmits a positioning stop instruction to the camera 10 via the short-range communication unit 28, stops the GPS positioning by the GPS unit 158, and starts the charging magnetic field to the power supply circuit 24 from time t5. Start the occurrence of That is, charging of the camera 10 is started from time t5.

  The MPU 22 performs positioning control during charging at time t6 when one hour has elapsed from time t5. Specifically, the MPU 22 temporarily stops the generation of the charging magnetic field from the power supply circuit 24 and transmits a positioning instruction to the camera 10 via the short-range communication unit 28. When the short-range communication unit 170 receives a positioning instruction, the camera MPU 140 causes the GPS unit 158 to start a positioning operation. The position information acquired by this positioning operation is recorded in the system memory 139. When the positioning operation is completed, the camera MPU 140 transmits a positioning completion notification indicating that the positioning is completed to the charger 20 via the short-range communication unit 170. When the MPU 22 receives the positioning completion notification, the MPU 22 causes the power feeding circuit 24 to start generating the charging magnetic field from time t7. That is, charging is resumed from time t7. As described above, the generation of the charging magnetic field is temporarily stopped from time t6 to time t7, and the GPS unit 158 receives the GPS signal within the period in which the generation of the charging magnetic field is temporarily stopped. Positioning operation including at least.

  The MPU 22 performs positioning control similar to the positioning control described above from time t8 when one hour has elapsed from time t6. Thereby, the generation of the magnetic field for charging is temporarily stopped during the period from time t8 to time t9, and the GPS unit 158 performs a positioning operation including at least reception of the GPS signal within the period. In addition, the MPU 22 performs positioning control similar to the positioning control described above from time t10 when one hour has elapsed from time t8. At time t <b> 12, when the camera MPU 140 determines that the secondary battery 196 is fully charged by the power receiving circuit 194, the camera MPU 140 transmits a power supply end request to the camera 10 via the short-range communication unit 170. When the MPU 22 receives the charging stop instruction, the MPU 22 stops the operation of the power feeding circuit 24 and stops the generation of the charging magnetic field. In addition, the MPU 22 transmits a positioning restart instruction for starting positioning at the positioning interval (5 seconds) during non-charging via the short-range communication unit 28.

  When receiving the positioning restart instruction, the camera MPU 140 causes the GPS unit 158 to start a positioning operation at intervals of 5 seconds. In this figure, the periodic positioning operation at intervals of 5 seconds is resumed from time t13. In this figure, the period from time t5 to time t12 is the charging period of the camera 10. The charging period of the camera 10 includes a period in which the magnetic field generation from the power feeding circuit 24 is temporarily stopped in order to cause the camera 10 to perform positioning.

  Thus, in the camera 10 that is not being charged, the GPS unit 158 performs positioning at the first frequency during a period that does not include the period during which the camera 10 is charged. More specifically, the GPS unit 158 performs positioning at intervals of 5 seconds. On the other hand, while the camera 10 is being charged, the MPU 22 controls the frequency with which the GPS unit 158 receives a GPS signal and performs positioning. Specifically, the MPU 22 causes the GPS unit 158 to perform positioning at a second frequency lower than the first frequency in a period including a period in which the camera 10 is charged. More specifically, the MPU 22 causes the GPS unit 158 to perform positioning at one hour intervals. For this reason, it is possible to charge the camera 10 early while positioning the camera 10. The MPU 22 supplies charging power to the camera 10 when the GPS unit 158 does not receive a GPS signal, and supplies charging power to the camera 10 when the GPS unit 158 receives a GPS signal. Stop. For this reason, the GPS unit 158 can receive a GPS signal appropriately.

  In this figure, in order to easily explain the operation, the time sequence during the charging period and the time sequence during the non-charging period are shown on different time scales. In addition, the period required for the positioning operation is schematically shown for easy understanding. Particularly when GPS signal reception is stopped for a long period of time, such as during a non-charging period, it takes several tens of seconds in some cases to acquire and update ephemeris information and the like from the GPS receiver. Therefore, when positioning is stopped for a long period of time, it may take several tens of seconds or more before geodetic calculation can be performed.

  FIG. 4 shows a processing flow from activation to termination of the camera 10. This flow is started, for example, when a power switch as a part of the operation input unit 141 is switched to the ON position. This flow is executed by controlling each part of the camera 10 mainly by the camera MPU 140.

  In step S400, the camera MPU 140 starts up an operating system (OS). Specifically, parameters for controlling the camera 10, activation code, OS, and the like are expanded from the system memory 139 to the RAM 136, and the camera MPU 140 executes the activation code and shifts to control by the OS. In step S <b> 402, the camera MPU 140 performs initial setting of the camera 10. For example, the camera MPU 140 sets the operating condition of the camera 10 based on the state of an imaging mode dial or the like as a part of the operation input unit 141 according to the developed parameters, programs, and the like. Examples of the operating conditions include a shooting mode, an imaging condition, a recording condition, and the like. Examples of the shooting mode include a continuous shooting mode and a single shooting mode. Examples of imaging conditions include exposure time, aperture value, imaging sensitivity, and the like. Examples of the recording conditions include the number of recording pixels. Moreover, the positioning interval during a non-charging period can be illustrated as an operation condition. For example, as described above, a positioning interval of 5 seconds may be set as the operation condition.

  Subsequently, in step S404, the camera MPU 140 causes the display unit 138 to display the content set in the initial setting. For example, the camera MPU 140 causes the display unit 138 to display information such as an imaging mode, an imaging condition, and a recording condition in various formats such as icon display.

  Subsequently, in step S406, the camera MPU 140 determines the type of event that has occurred. Various events are generated by an operation event generated by an operation on the operation input unit 141, a communication event generated by communication with another device, a battery status event generated according to a remaining capacity state of the secondary battery 196, and the like. Here, a setting event that occurs in response to an instruction to perform a setting operation, a reproduction event that occurs in response to an instruction to perform a reproduction operation, an imaging event that occurs in response to an instruction to perform an imaging operation, and communication with the charger 20 A short-range communication event caused by the above and a full charge event that occurs when the secondary battery 196 becomes fully charged will be described.

  A setting event occurs when an operation of a setting button as a part of the operation input unit 141 is detected. When a setting event occurs, the camera MPU 140 performs the setting process in accordance with the instruction content (step S410). In this setting process, the operating conditions of the camera 10 are set according to the instruction content.

  A playback event occurs when an operation of a playback button as a part of the operation input unit 141 is detected. When a playback event occurs, the camera MPU 140 executes the instructed playback process based on a user operation on the operation input unit 141 (step S412). The reproduction processing includes processing for displaying a list of images based on image data such as still images and moving images recorded in the external memory 180, processing for accepting selection of image data, and display on the display unit 138 based on image data selected by the user. The process etc. which display an image can be illustrated.

  An imaging event occurs when an operation of a release button, a live view button, or a moving image recording button as a part of the operation input unit 141 is detected. When an imaging event occurs, the camera MPU 140 performs an imaging process according to an operation instruction (step S414).

  The near field communication event occurs when the near field communication unit 170 receives a signal from the charger 20. When a near field communication event occurs, the camera MPU 140 executes a process determined according to the communication content (step S416). The processing in this step will be described with reference to FIG.

  A full charge event occurs when a signal indicating full charge is output from the power receiving circuit 194. When the full charge event occurs, the camera MPU 140 executes a process for stopping the charging (step S418). The processing in this step will be described with reference to FIG.

  When the processes of step S410, step S412, step S414, step S416, and step S418 are completed, the process proceeds to step S422.

  In step S422, it is determined whether to turn off the power. For example, when the camera 10 is not being charged, there is no event to be processed, and no new event has occurred for a predetermined period after the camera 10 starts operating, it is determined that the power is turned off. It is also determined that the power is turned off when the power switch is set to the OFF position. If it is determined not to turn off the power, the process proceeds to step S406. If it is determined that the power is to be turned off, necessary processing is performed before the power is turned off (step S424). As this process, a process of storing information such as a changed parameter variable in the system memory 139 can be exemplified. When the process of step S424 is completed, this flow ends.

  FIG. 5 shows an example of a flow when the camera 10 performs a communication operation. This flow can be applied to a part of the processing in step S416. This flow is executed by controlling each part of the camera 10 mainly by the camera MPU 140.

  When this flow is started, the type of event is determined in step S502. Here, a connection event that occurs when the presence of the charger 20 is detected, a positioning stop event that occurs when the positioning stop instruction described above is received from the charger 20, and a positioning event that occurs when the positioning instruction described above is received from the charger 20 are generated. The positioning instruction event will be explained.

  When the connection event occurs, the camera MPU 140 determines whether or not the secondary battery 196 needs to be charged based on the remaining capacity of the secondary battery 196. For example, the camera MPU 140 determines that the secondary battery 196 needs to be charged when the remaining capacity of the secondary battery 196 is smaller than a predetermined value. When it is determined that the secondary battery 196 needs to be charged, a power supply start request is transmitted to the charger 20 (step S506), and this flow is ended. If it is determined that it is not necessary to charge the secondary battery 196, this flow ends without transmitting a power supply start request.

  If it is determined in step S502 that a positioning stop event has occurred, the camera MPU 140 stops positioning by the GPS unit 158 (step S510). Specifically, the camera MPU 140 stops the positioning operation by the GPS unit 158 at intervals of 5 seconds. When the process of step S510 is completed, this flow ends.

  If it is determined in step S502 that a positioning instruction event has occurred, the camera MPU 140 causes the GPS unit 158 to start positioning (step S520). Subsequently, it is determined whether or not the positioning operation by the GPS unit 158 has been completed, and the positioning operation by the GPS unit 158 is awaited (step S522). When the positioning operation is completed, the camera MPU 140 stores the position information acquired by the GPS unit 158 in the system memory 139 (step S524), and transmits the above positioning completion notification to the charger 20 (step S526). End the flow.

  FIG. 6 shows an example of a flow when the camera 10 performs an imaging operation. This flow can be applied to a part of the processing in step S414. This flow is executed by controlling each part of the camera 10 mainly by the camera MPU 140. This flow is started, for example, when an imaging event occurs according to a release instruction. Here, in particular, a case where an imaging operation is performed during a charging period will be described.

  When this flow is started, the camera MPU 140 causes the image sensor 132 to capture an image (step S602), and causes the ASIC 135 to perform image processing (step S604). In step S604, the ASIC 135 generates JPEG format image data and stores the image data in the RAM 136 as Exif format image data including position information. In this step, the image data may be stored in the RAM 136 and may not be recorded in the external memory 180.

  Subsequently, in step S606, the camera MPU 140 transmits image data to the charger 20 via the short-range communication unit 170. As described above, in the charger 20, the current position of the camera 10 is determined based on the position information included in the transmitted image data and the position information acquired from the mobile terminal 30, and the determined position information. Is sent from the charger 20. In step S <b> 608, the image data attached with the position information determined by the charger 20 is received from the charger 20. In step S610, the camera MPU 140 records the image data received in step S608 in the external memory 180 (step S610), and ends this flow.

  FIG. 7 shows an example of a flow when a full charge event occurs. This flow can be applied to a part of the processing in step S418. This flow is executed by controlling each part of the camera 10 mainly by the camera MPU 140.

  When this flow is started, the camera MPU 140 transmits a power supply end request to the charger 20 via the short-range communication unit 170 (step S702), and waits to receive a positioning restart instruction from the charger 20 ( Step S704). When the positioning restart instruction is received, the periodic positioning operation at intervals of 5 seconds at the time of non-charging is started (step S706). Thus, when the charging is completed, the camera 10 returns to the operation of repeatedly performing positioning at a shorter time interval than during the charging period.

  FIG. 8 shows a processing flow from the start to the end of the charger 20. This flow is started, for example, when the switch 21 is switched to the ON position. This flow is executed by controlling each part of the charger 20 mainly by the MPU 22.

  In step S802, the MPU 22 starts up a control program (OS). Specifically, parameters, control programs, and the like for controlling the charger 20 are expanded from the built-in ROM to the built-in RAM, and the charger 20 executes the control program and shifts to control by the control program. In step S802, it waits for reception of a power supply start request. For example, the MPU 22 waits until the camera 10 is placed on the upper surface 29 of the charger 20 and the power supply start request described in step S506 in FIG.

  When receiving the power supply start request, the MPU 22 starts power supply to the camera 10 (step S806). Specifically, the MPU 22 starts generating a magnetic field from the power feeding circuit 24. Subsequently, in step S808, the MPU 22 determines whether or not a power supply end request has been received. If the power supply termination request has not been received, the MPU 22 determines whether image data has been received from the camera 10 (step S810). If no image data has been received, the MPU 22 determines whether or not a predetermined time has elapsed since the start of power feeding or the last positioning of the camera 10 (step S812). For example, as described above, the MPU 22 determines whether one hour has elapsed. If it is determined that a predetermined time has not elapsed since the start of power supply, the process proceeds to step S808.

  If it is determined that a predetermined time has elapsed since the start of power supply, the MPU 22 temporarily stops power supply (step S814) and transmits a positioning instruction to the camera 10 (step S816). Then, the camera 10 waits for the positioning operation to be completed (step S818). Specifically, the MPU 22 waits for a positioning completion notification from the camera 10 to be received. If it is determined that the positioning operation in the camera 10 has been completed, the MPU 22 resumes power supply to the camera 10 (step S820), and the process proceeds to step S808. In step S820, the MPU 22 starts generating a magnetic field from the power feeding circuit 24.

  If it is determined in step S810 that image data has been received from the camera 10, position information is received from the portable terminal 30 (step S822). Specifically, the MPU 22 transmits a request for transmitting the position information acquired by the mobile terminal 30 to the mobile terminal 30 via the wireless communication unit 27, and receives the position information from the mobile terminal 30. In step S824, the MPU 22 specifies position information at the time of imaging.

  For example, the MPU 22 compares the position information attached to the image data received from the camera 10 with the position information acquired from the mobile terminal 30. When the MPU 22 determines that the position information attached to the image data is appropriate based on the comparison result, the MPU 22 regards the position indicated by the position information as the position at the time of imaging, and the position information attached to the image data is When it is determined that it is not appropriate, the position indicated by the position information acquired from the mobile terminal 30 is regarded as the position at the time of imaging. The MPU 22 uses the positional information attached to the image data when the time difference between the imaging time indicated by the imaging time information attached to the image data and the positioning time attached to the image data is smaller than a predetermined value. May be determined to be appropriate. In addition, when the distance between the position indicated by the position information attached to the image data and the position indicated by the position information acquired from the mobile terminal 30 is smaller than a predetermined value, the MPU 22 You may judge that the accompanying positional information is appropriate. Further, the charger 20 may acquire the positioning information from the camera 10 during the charging period of the camera 10 and may acquire the positioning information from the portable terminal 30 via the wireless communication unit 27. Then, based on the temporal history of the positional information acquired from the camera 10 and the temporal history of the positional information acquired from the mobile terminal 30, the MPU 22 determines whether the positional information attached to the image data is appropriate. May be judged.

  Subsequently, the MPU 22 sets position information indicating the position specified in step S824 as position information attached to the image data (step S826). Then, the MPU 22 transmits the image data in which the position information is set to the camera 10 (step S828), and the process proceeds to step S812.

  When the power supply end request is received in step S806, the MPU 22 ends the power supply from the power supply circuit 24 (step S830), and transmits the above positioning restart instruction to the camera 10 (step S832). Subsequently, the charger 20 determines whether or not to end the operation (step S834). For example, when the MPU 22 determines that the charged camera 10 has been placed on the upper surface 29 for a predetermined time, the MPU 22 determines to end the operation. If it is determined that the operation is to be ended, the present flow is ended. If it is determined that the operation is not to be ended, the process proceeds to step S804.

  As described in relation to this flow and the like, the MPU 22 acquires position information from the mobile terminal 30 as an example of a device other than the camera 10. Then, when the camera 10 is charged, the MPU 22 specifies the current position of the camera 10 based on at least one of the acquired position information and the positioning result by the GPS unit 158. Then, when the camera 10 is charged, information indicating the specified current position is recorded in association with image data obtained by the camera 10 capturing an image. Specifically, the MPU 22 obtains image data obtained by the camera 10 from the camera 10 through wireless communication. Then, the image data acquired from the camera 10 by wireless communication is appended with information indicating the specified current position, and the data is transmitted to the camera 10 by wireless communication, so that the external memory 180 or the like attached to the camera 10 is transmitted. Record image data.

  According to the system 5 described above, the position information can be reliably acquired even during the charging period. Therefore, even when movement occurs during charging, processing according to the position can be performed. For example, it is possible to recognize whether the position information attached to the image data is appropriate, and attach the position information acquired by the portable terminal 30 to the image data as necessary. For example, the position information acquired by the portable terminal 30 is preferentially set in the image data. For this reason, it is possible to acquire accurate position information at any time during photographing even during movement.

  In the above description, the power supply 190 has the power receiving circuit 194. That is, the secondary battery 196 is detachably attached to the camera body 130 together with the power receiving circuit 194. However, the power receiving circuit 194 may be incorporated in the camera body 130, and the secondary battery 196 may be detachably attached to the camera body 130. The power source 190 may be incorporated in the camera body 130.

  In the above description, the GPS unit 158 is incorporated in the camera body 130. However, the GPS unit 158 may be an external device that is detachably attached to the camera body 130.

  In the above description, the charger 20 determines whether or not the positional information attached to the image data is appropriate. However, when the image data is obtained, the camera 10 may determine whether or not the latest position information currently stored in the system memory 139 is appropriate. For example, the camera MPU 140 acquires position information from the mobile terminal 30 as with the charger 20, and based on the acquired position information, whether the position information already acquired by the GPS unit 158 is appropriate. You may judge.

  In the above description, the charger 20 acquires information on whether or not the camera 10 has a GPS function through communication with the camera 10. However, the charger 20 determines that the camera 10 has the GPS function when the position information is included in the Exif image data, and the camera 10 has the GPS function when the position information is not included in the Exif image data. You may decide not to.

  Further, in the above description, the charger 20 is mainly used to control the positioning timing by the camera 10 during the charging period and the timing for temporarily stopping the power transmission from the charger 20. However, these controls may be performed mainly by the camera 10. For example, when the camera MPU 140 transmits an instruction to temporarily stop power transmission to the charger 20 and power transmission from the charger 20 is stopped, the GPS unit 158 may start the positioning operation.

  In the above description, power transmission from the charger 20 is stopped when the GPS unit 158 receives a GPS signal. However, even when the GPS unit 158 receives a GPS signal, the power transmission from the charger 20 may not be completely stopped. For example, when the GPS unit 158 receives a GPS signal, the charging power to the camera 10 may be reduced. More specifically, when the GPS unit 158 receives a GPS signal, the strength of the magnetic field generated by the charger 20 may be reduced. For example, the strength of the magnetic field generated by the charger 20 may be reduced until the noise level generated by charging reaches a level at which the GPS unit 158 can receive GPS signals. The level for reducing the charging power may be transmitted from the camera 10 to the charger 20 by wireless communication or the like. Further, it is not necessary to stop the transmission of the charging power or reduce the charging power over the entire period in which the GPS unit 158 receives the GPS signal. For example, in a period during which the GPS unit 158 receives a GPS signal, charging power of a specified level is supplied, and in other periods, transmission of charging power is stopped or charging power lower than the specified level is supplied. You may do it. It goes without saying that it is not necessary to perform control for stopping transmission of charging power or reducing charging power every time the GPS unit 158 performs a positioning operation.

  In the above description, the charger 20 is operated by the power supplied from the AC power source and transmits the power to the camera 10. However, as the power source of the charger 20, a DC power source can be applied instead of the AC power source. Further, the charger 20 may have a battery such as a secondary battery therein, operate with power supplied from the battery, and transmit the power to the camera 10.

  In the above description, the operation of the system 5 has been described by taking an electromagnetic induction transmission system as an example of a wireless transmission system. However, as a charging power transmission method in a wireless format, in addition to the electromagnetic induction method, a transmission method using non-radiation field coupling such as a radio wave method, an electric field resonance method, and a magnetic field resonance method, and a radiation method such as microwave transmission and laser power transmission. Various power transmission methods such as a field power transmission method can be applied. In the system 5, by applying such non-contact power transmission, the charging power of the camera 10 can be supplied from the charger 20 without an electrical contact.

  The system 5 can be applied to a wired power transmission method instead of a wireless power transmission method. For example, even when a wired power transmission method is applied, noise generated in a charging circuit or the like that is driven when the secondary battery 196 is charged may affect the reception of the GPS signal of the GPS unit 158. Therefore, control similar to the control in the wireless power transmission method can be performed even when the wired power transmission method is applied. For example, when the GPS unit 158 receives a GPS signal, control such as reducing charging power supplied by a wired power transmission method may be performed. That is, the charging power supplied to the camera 10 is reduced when the GPS unit 158 receives a GPS signal, compared to when the GPS unit 158 does not receive a GPS signal, regardless of the charging power transmission method. It's okay.

  In the above description, the processing described as the operation of the camera MPU 140 is realized by the camera MPU 140 controlling each hardware of the camera 10 according to a program. In the above description, the processing realized by the ASIC 135 can be realized by a processor. For example, the processing described as the operation of the ASIC 135 is realized by the processor controlling each hardware included in the camera 10 according to the program. That is, the processing described in relation to the camera 10 of the present embodiment is performed by the processor operating in accordance with the program to control each hardware, so that each hardware including the processor, the memory, and the like cooperates with the program. It can be realized by operating. That is, the process can be realized by a so-called computer device. The computer device may load a program for controlling the execution of the above-described process, operate according to the read program, and execute the process. The computer device can load the program from a computer-readable recording medium storing the program. Similarly, in the processing described in relation to the charger 20 of the present embodiment, the processor operates in accordance with the program to control the hardware, whereby the hardware including the processor, the memory, and the like cooperate with the program. It can be realized by operating.

  In the present embodiment, the camera 10 with the lens unit 120 attached is taken as an example of an imaging apparatus. However, the imaging device is a concept including the camera body 130 to which the lens unit 120 is not attached. As an imaging device, in addition to a single-lens reflex camera that is an example of an interchangeable lens camera, a compact digital camera that is an example of a non-interchangeable camera, a mirrorless camera, a video camera, a mobile phone with an imaging function, imaging Various electronic devices having an imaging function, such as a portable information terminal with a function and an entertainment device such as a game machine with an imaging function, can be applied. An imaging device is an example of an electronic device to be charged. A mobile phone, a portable information terminal, a computer such as a so-called tablet or laptop computer, a recording device, a navigation device such as a portable car navigation system, etc. has a GPS reception function and transmits power from the outside. Various possible electronic devices can be applied. In addition, as an external device corresponding to the mobile terminal 30, various devices such as a mobile phone, a portable information terminal, and an entertainment device such as a game device can be applied.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

5 system, 10 camera, 20 charger, 21 switch, 22 MPU, 23 power cable, 24 power supply circuit, 26 power supply circuit, 27 wireless communication unit, 28 short-range communication unit, 29 top surface, 30 mobile terminal, 120 lens unit, 121 lens mount contact, 122 lens group, 123 lens MPU, 124 lens drive unit, 130 camera body, 131 camera mount contact, 132 image sensor, 133 analog processing unit, 134 A / D converter, 135 ASIC, 136 RAM, 137 Display control unit, 138 display unit, 139 system memory, 140 camera MPU, 141 operation input unit, 142 AF unit, 143 focal plane shutter, 144 photometric element, 145 main mirror, 146 sub mirror, 147 finder unit 148 drive unit, 149 connection interface, 150 recording medium IF, 158 GPS unit, 180 external memory, 190 power supply, 192 power supply circuit, 170 short-range communication unit, 194 power reception circuit, 196 secondary battery

Claims (11)

A charge control device for controlling charging to an electronic device,
A charging control unit for reducing charging power supplied to the electronic device when the GPS receiving unit of the electronic device is receiving a GPS signal, compared to a case where the GPS receiving unit is not receiving a GPS signal; A charge control device provided. The charging control unit causes charging power to be supplied to the electronic device when the GPS receiving unit is not receiving a GPS signal, and to the electronic device when the GPS receiving unit is receiving a GPS signal. The charging control device according to claim 1, wherein the supply of charging power is stopped. The electronic device is charged with charging power wirelessly transmitted from a wireless charging device,
The charging control unit is configured to wirelessly transmit charging power from the wireless charging device to the electronic device when the GPS receiving unit is not receiving a GPS signal, and the GPS receiving unit is receiving a GPS signal. The charging control device according to claim 2, wherein wireless power transmission from the wireless charging device to the electronic device is stopped. A positioning control unit for controlling the frequency of positioning by receiving a GPS signal in the GPS receiving unit;
The GPS receiver performs positioning at a first frequency in a period not including a period in which the electronic device is charged,
The positioning control unit according to any one of claims 1 to 3, wherein the GPS receiving unit performs positioning at a second frequency lower than the first frequency in a period including a period during which the electronic device is charged. Charge control device. A position information acquisition unit that acquires position information from other devices than the electronic device;
A position specifying unit for specifying a current position of the electronic device based on at least one of the position information acquired by the position information acquiring unit and a positioning result by the GPS receiving unit when the electronic device is charged; The charge control device according to claim 4, further comprising: The electronic device is an imaging device,
The electronic device is
A recording control unit that records information indicating a current position specified by the position specifying unit in association with image data obtained by the image pickup device picking up an image when the electronic device is charged. Item 6. The charge control device according to Item 5. The electronic device is an imaging device,
The charging control device is the wireless charging device,
The charge control device includes:
An image data acquisition unit that acquires image data obtained by imaging by the imaging device from the imaging device by wireless communication;
A position information acquisition unit that acquires position information from other devices than the electronic device;
A position that identifies the current position of the electronic device based on at least one of the position information acquired by the position information acquisition unit and the position information acquired by the GPS reception unit when the electronic device is charged A specific part,
The image processing apparatus further comprising: a transmission unit that transmits, to the image capturing apparatus, data obtained by attaching the information indicating the current position specified by the position specifying unit to the image data acquired by wireless communication from the image capturing apparatus. 3. The charge control device according to 3. The charge control device according to any one of claims 1 to 7,
A system comprising the electronic device. A wireless charger that wirelessly charges an electronic device,
A positioning control unit for controlling the frequency of positioning by receiving a GPS signal in the GPS receiving unit of the electronic device;
The GPS receiver performs positioning at a first frequency in a period not including a period in which the electronic device is charged,
The positioning control unit is a wireless charger that causes the GPS receiving unit to perform positioning at a second frequency lower than the first frequency in a period not including a period during which the electronic device is charged. When the GPS receiving unit of the electronic device receives a GPS signal, the computer performs a charge control step for reducing the charging power supplied to the electronic device, compared with the case where the GPS receiving unit does not receive the GPS signal. A program to make it run. A program for a wireless charger that wirelessly charges an electronic device,
Causing the computer to execute a positioning control step for controlling the frequency of positioning by receiving a GPS signal in the GPS receiver of the electronic device;
The GPS receiver performs positioning at a first frequency in a period not including a period in which the electronic device is charged,
The positioning control step is a program that causes the GPS receiving unit to perform positioning at a second frequency lower than the first frequency in a period not including a period during which the electronic device is charged.

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