JP4724542B2 - Digital camera and digital camera charging device - Google Patents

Description

  The present invention relates to a digital camera and a digital camera charging apparatus.

  First, updating of firmware (firmware) of the digital camera will be described.

  A digital camera has a function to process, record, and reproduce a large amount of image data from a solid-state imaging device such as a CCD (Charge-Coupled Device), so that the data capacity of the firmware is enormous and the configuration is complicated. It has become. For this reason, users often find defects after purchasing a product, and the manufacturer often provides countermeasure firmware or upgrade firmware such as additional specifications. Always be aware of the information provided. When new firmware is provided, each user must download the latest firmware and update the downloaded firmware.

  When downloading firmware, the user first starts up a personal computer (hereinafter referred to as “PC”), accesses the manufacturer's firmware providing site via the Internet, searches for necessary firmware, and downloads it.

  Further, when updating the firmware of the digital camera with the downloaded firmware, the PC and the digital camera are connected using a predetermined communication cable or the like, and the firmware is updated according to an instruction displayed on the monitor of the personal computer.

  Next, charging of a power battery of a general digital camera will be described.

  Since the digital camera consumes a large amount of power, it is common to have a configuration in which a secondary battery is mounted as a power source and can be repeatedly charged and used. As for the chargers of these digital cameras, there are known ones in which the main body of the digital camera is set in a so-called cradle charging base and charging is performed by setting only the secondary battery in the charger.

On the other hand, as a charger for an information communication device such as a mobile phone, a charger capable of exchanging communication data using a commercial power source as a communication medium is known. In addition, there is known a charger in which a data communication function is provided in these chargers so that data communication can be easily performed during charging of the mobile phone (for example, see Patent Document 1). In addition, a battery charger for a mobile phone is provided with a function of downloading and storing data such as a phone book stored in a memory of a mobile phone from a mobile phone and uploading the stored data to the mobile phone. An example is known (for example, Patent Document 2).
JP 10-164250 A Japanese Patent Laid-Open No. 2002-237876

  However, in order to update the firmware of the digital camera to the latest version, the user accesses the manufacturer's service providing site by connecting to the Internet using a PC etc., and pay attention to whether there is always firmware update information. I have to keep it. In addition, when the latest firmware downloaded is uploaded to the digital camera and the existing firmware is updated, the PC and the digital camera must be connected. Thus, the use of a PC is indispensable for updating the firmware.

  On the other hand, in so-called ECHONET, which uses a commercial AC power supply as a communication medium to exchange communication data, communication data is superimposed on the AC power supply, so that the communication distance becomes longer. There are many cases in which the range of use is limited to households or specific areas because it is susceptible to noise. In addition, because it is susceptible to noise, it is not suitable for large-capacity data communication and high-speed communication, and the standard for communication speed is set slower than when using a telephone line or wireless line. It is. Therefore, it takes a long time to download a large amount of data such as firmware of a digital camera.

  An object of the present invention is to provide a digital camera and a digital camera charging apparatus that can easily replace firmware installed in the digital camera with the latest firmware.

In order to achieve the above object, a digital camera charging apparatus according to claim 1, wherein an AC power connection terminal connected to a commercial AC power source and a digital camera are mechanically and electrically connected to the digital camera. A charging device for a digital camera having a power supply function and a power communication terminal having a data communication function, using data communication using the commercial AC power as a communication medium, and charging the digital camera, Firmware update means for transmitting unique information of the digital camera to a predetermined service providing site, downloading firmware of the digital camera from the service providing site, and uploading the downloaded firmware to the digital camera; and the digital camera To calculate the required charging time from the remaining battery information A required time calculating means, a download required time calculating means for calculating a required download time from the data amount of the firmware to be downloaded, and a required time comparing means for comparing the required charge time with the required download time, The firmware update means executes the download when the required charging time is longer than the required download time, and when the charging completion time is shorter than the required download time after the completion of charging of the digital camera. Further, it is controlled to display a warning as to whether or not the download is to be continued .

To achieve the above object, the digital camera according to claim 6, wherein, in the digital camera is connected to the charging device of a digital camera according to any one of claims 1 to 6, the downloaded firmware It is characterized by comprising display means for displaying information about the version and selection means for selecting whether the downloaded firmware is to be automatically updated or manually updated.

According to the charging device of claim 1, since the communication can be performed through the commercial AC power supply while charging the digital camera only by connecting the charging device to the commercial AC power supply, it is connected to another telephone line or a wireless line. Therefore, it is possible to update the firmware of the digital camera without using another communication device such as a personal computer.
Furthermore, since it is possible to determine whether or not the firmware download is completed within the charging time, it is easy to determine whether to prioritize the charging time or download according to the convenience of the user. .

  According to the charging device of claim 2, since unnecessary data communication can be eliminated and only necessary information can be downloaded, time required for data communication can be shortened.

According to the charging device of claim 3 , even when the digital camera is removed from the charging device during charging due to the convenience of the user, the necessary firmware download is executed until completion, so the digital camera is reattached. In this case, normal firmware can be updated.

According to the charging device of claim 4 , since charging of the digital camera and information communication can be performed in parallel, communication with a low communication speed such as a so-called ECO-NET using a commercial power source as a communication medium. There is no need to be annoyed by means of means.

According to the digital camera of the sixth aspect , it is possible to confirm whether the firmware is necessary for the user before updating the firmware of the digital camera, and to make settings related to the operation and display of the charging device on the digital camera side. As a result, the cost of the charging device can be reduced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram schematically showing a configuration of a charging apparatus according to an embodiment of the present invention.

  In FIG. 1, a commercial AC power line 1 (AC 100 V) arranged in a building is connected to an outdoor commercial AC power source.

  The charging device 2 includes an AC power connection terminal 7 connected to the commercial AC power line 1, a power communication terminal 8 to which the digital camera 3 is mechanically and electrically connected, an AC connection terminal 7, and a power communication terminal 8. The signal superimposing means 6, the AC / DC converter 4, and the signal processing means are provided.

  The signal processing means 5 includes a noise removal circuit 9, a signal extraction circuit 10, a demodulation circuit 11, and a first memory 12. The signal superimposing means 6 includes a second memory.

  The digital camera 3 includes a battery 20, a display device 21, a calculation unit 22, and an input setting unit 23.

  The AC connection terminal 7 and the AC / DC converter 4 are connected via an AC power line 14, the AC power line 14 and the signal superimposing means 6 are connected via a superimposed signal line 19, and the AC power line 14 and the signal processing means 5 are connected. Are connected via a data line 16.

  The AC / DC converter 4 and the power communication terminal 8 are connected via a DC power line 15, the DC power line 15 and the signal superimposing means 6 are connected via a data line 18, and the DC power line 15 and the signal processing means are connected. 5 are connected via a data line 17.

  The AC / DC converter 4 has a function of stepping down the voltage at the same time as converting alternating current into direct current. The signal processing means 5 has a function of extracting a data component contained in the commercial AC power supply line 1 and converting it into a data signal that can be transmitted to the digital camera 3. The signal superimposing means 6 has a function of superimposing information acquired as a data signal from the digital camera 3 on an AC power source.

  The power communication terminal 8 has a function of supplying power to the digital camera 3 and a data communication function.

  The noise removal circuit 9 removes noise components contained in the AC power supply. The signal extraction circuit 10 extracts a data signal from the AC component. The demodulation circuit 11 demodulates the signal extracted by the signal extraction circuit 10 into a signal that can be transmitted to the digital camera 3. The first memory 12 stores the data demodulated by the demodulation circuit 11.

  The second memory 13 temporarily stores information acquired from the digital camera 3.

  The AC power line 14 is an AC power line that supplies AC power to the charging device 2 via the AC connection terminal 7. The DC power supply line 15 is a DC power supply line that is stepped down to a voltage suitable for the digital camera by the AC / DC converter 4 and supplies DC power to the digital camera 3.

  The data line 16 transmits a data signal from the commercial power line 1 to the signal processing unit 5 through the AC power line 14. The data line 17 superimposes data on the DC power supply line 15 and transmits a data signal to the digital camera 3 via the power supply communication terminal 8.

  The data line 18 transmits information of the digital camera 3 to the signal superimposing means 6 through the power communication terminal 8. The superimposed signal line 19 carries a data signal on the AC power line 14 and transmits the data signal to the commercial power line 1.

  The battery 20 is a secondary battery that is mounted on the digital camera 3 and can be repeatedly charged and discharged. The display device 21 reproduces a captured image and displays various information. The calculation means 22 performs control of the display device 21 and data communication control.

  The input setting unit 23 is a setting unit for setting various operations and controls of the digital camera. Firmware update conditions are set using the input setting means 23.

  In the present embodiment, firmware update conditions are set using the input setting means 23 on the digital camera side, but may be provided on the charging device side.

  FIG. 2 is a flowchart showing the procedure of the charging process executed by the charging device of FIG.

  In this process, it is assumed that the AC connection terminal 7 of the charging device 2 is connected to the commercial AC power line 1.

  In FIG. 2, first, the digital camera 3 is set in the charging device 2, and the charging device 2 and the digital camera 3 are electrically connected by the power communication terminal 8 (step S201). ID information of the digital camera 3 set in the charging device 2 is detected and stored in the second memory 13 (step S202). Further, the remaining battery level of the digital camera 3 is detected (step S203), and the required charging time is calculated based on the ID information of the digital camera 3 and the detected remaining battery level information (step S204) (required charging time calculating means). ).

  Next, the calculated required charging time is displayed using the display device 21 of the digital camera 3 (step S205), and then charging of the digital camera 3 is started (step S206). At this time, a firmware download process shown in FIG.

  Next, the battery voltage is repeatedly checked every time a predetermined time elapses. When the charging completion level is reached (YES in step S208), the charging is terminated (step S209), and the charging completion display is performed using the display device 21. (Step S210), the process is terminated.

  FIG. 3 is a flowchart showing a firmware download process executed by the charging apparatus of FIG.

  In FIG. 3, the version information of the firmware installed in the digital camera 3 connected to the charging device 2 is detected and stored in the second memory 13 (step S302). Next, connection is made to the service providing site via the commercial power line 1 (step S303), and the ID information of the digital camera 3 stored in the second memory 13 is transmitted (step S304).

  Next, the ID information transmitted at the service providing site is confirmed, the authentication acceptance is confirmed (step S305), the firmware version information uploaded to the service providing site and the data capacity information thereof are acquired (step S306), The version information acquired in step S306 and the firmware version information stored in the second memory 13 are collated (step S307) (collation means). Further, it is determined whether or not there is update information based on the collation result (step S308). If there is no update information (NO in step S308), the process is terminated.

  If there is update information as a result of determination in step S308, the download time is calculated from the data capacity of the firmware to be updated and the communication speed of the line (step S309) (download time calculation means), and the charge time and download By comparing the required time, it is determined whether or not the required charge time is longer than the required download time (step S310) (required time calculation means). If the required charge time is longer than the required download time, download is performed. This is executed (step S313), a firmware update process of FIG. 4 described later is executed, and this process ends.

  As a result of the determination in step S310, if the required charging time is not longer than the required download time, the download required time is displayed on the display device 21 of the digital camera 3 (step S311), and the download execution is continued even after the charging is completed. (Step S312), and if the setting on the digital camera side is set to “continue” in advance, download (step S313) and firmware update processing (step S314) are executed. On the other hand, if the setting is “do not continue”, this processing is immediately terminated.

Figure 4 is a flowchart illustrating a firmware update processing executed in step S314 of FIG. 3.

  In FIG. 4, first, it is determined whether or not automatic updating of firmware is set in advance in the digital camera 3 (step S402). If automatic updating is set, the firmware is updated (step S403). Further, the version information and contents of the updated firmware are displayed on the display device 21 of the digital camera 3 (step S406), and this process is terminated.

  If the result of determination in step S402 is that automatic update is not set, the version information and contents of the firmware to be updated are displayed on the display device 21 of the digital camera 3 (step S404) (display means), and update manual operation is performed. (Step S405) (selection means). When manual update operation is performed within a predetermined time, the firmware is updated (Step S403), and the version information and contents of the updated firmware are displayed. The image is displayed on the display device 21 of the digital camera 3 (step S406), and this process is terminated. If the result of determination in step S405 is that manual update operation has not been performed within a predetermined time, this processing is terminated.

  According to the present embodiment, the charging device 2 of the digital camera can update the firmware of the digital camera 3 by automatic updating of the firmware or by manual update operation in parallel with the start of charging of the digital camera 3. Can be updated.

It is a block diagram which shows roughly the structure of the charging device which concerns on embodiment of this invention. It is a flowchart which shows the procedure of the charging process performed by the charging device of FIG. 3 is a flowchart showing firmware download processing executed by the charging device of FIG. 1. It is a flowchart illustrating a firmware update processing executed in step S314 of FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Commercial power supply line 2 Charging apparatus 3 Digital camera 4 AC / DC converter 5 Signal processing means 6 Signal superimposing means 7 AC connection terminal 8 Power supply communication terminal 14 AC power supply line 15 DC power supply lines 16, 17, 18 Data line 19 Signal line 20 Battery 21 Display device 22 Calculation means

Claims (6)

A charging device for a digital camera, comprising: an AC power connection terminal connected to a commercial AC power supply; and a power supply communication terminal having a digital camera mechanically and electrically connected and having a power supply function and a data communication function to the digital camera. Because
Using data communication using the commercial AC power source as a communication medium, while charging the digital camera, the unique information of the digital camera is transmitted to a predetermined service providing site, and from the service providing site to the digital camera. Firmware update means for downloading firmware and uploading the downloaded firmware to the digital camera;
A required charging time calculating means for calculating a required charging time from the remaining battery information of the digital camera;
Download time calculation means for calculating the download time from the amount of firmware data to be downloaded;
A required time comparing means for comparing the charging required time and the download required time;
The firmware update means executes the download when the required charging time is longer than the required download time, and completes charging of the digital camera when the required charging time is shorter than the required download time. An apparatus for charging a digital camera, characterized in that control is performed so as to display a warning as to whether or not to continue the download .   Collating means for collating the version information of firmware installed in the digital camera with the firmware version information of the service providing site, and the firmware updating means, based on the collation result by the collating means, the service providing site 2. The charging device for a digital camera according to claim 1, wherein the download is executed when it is determined that there is update information of the firmware. 3. The charging of the digital camera according to claim 2 , wherein the firmware updating means continues the download until the digital camera is completed even when the digital camera is removed from the charging device during the download. apparatus. The charging device includes an AC / DC converter that converts alternating current from the AC power connection terminal into direct current, and signal processing means that extracts a data signal from the alternating current from the AC power connection terminal,
The power communication terminal includes a DC connection terminal that supplies the converted direct current to the digital camera, a data output terminal that outputs a data signal extracted from the signal processing means to the digital camera, and a A data input terminal for inputting data,
4. The charging device for a digital camera according to claim 3 , wherein the charging device includes a signal superimposing unit for placing a data signal input from the data input terminal on an alternating current. First storage means for storing a data signal extracted by said signal processing means, according to claim 4, characterized in that it comprises a second storage means for storing the inputted data signal from the data input terminal Digital camera charging device. In the digital camera connected to the digital camera charging device according to any one of claims 1 to 5 ,
A digital camera comprising: display means for displaying information relating to a version of the downloaded firmware; and selection means for selecting whether the downloaded firmware is to be automatically updated or manually updated.

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