JP4192028B2 - Camera and camera operation control method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a camera and a camera operation control method, and more particularly to a camera configured by incorporating a plurality of units each having a predetermined function and a camera operation control method.
[0002]
[Prior art]
In recent years, with the increase in the resolution of imaging devices such as CCD (Charge Coupled Device) and CMOS (Complementary Metal Oxide Semiconductor) image sensors, digital still cameras and digital video cameras have been developed. Demand is increasing rapidly.
[0003]
On the other hand, demands for convenience and expandability of cameras such as this type of digital camera and silver halide photography type camera have been increasing year by year, and there have been the following two technologies to meet this demand.
[0004]
First, the first technology expands camera applications, reduces power consumption, and improves portability. A camera / EVF (electric / electronic camera) in which an imaging unit and a viewfinder unit are integrated. (View finder) unit, and a recorder unit in which a video signal and audio signal processing circuit and a recording medium driving device are integrated, and the camera / EVF unit and the recorder unit can be attached and detached by one-touch operation. (For example, refer to Patent Document 1).
[0005]
The second technology is a centralized control system that controls the camera for the purpose of obtaining the desired camera configuration by replacing only the related unit when there is a version upgrade or a change to a camera of a different model. At least one main electric board having a control device and at least one connection part electrically connected to another electric board; a plurality of unit boards having different specifications connectable to the at least one connection part; The camera is configured by selecting any one of the plurality of unit substrates and connecting the selected unit substrate to the at least one main electric substrate (see, for example, Patent Document 2).
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-2000593
[Patent Document 2]
JP 2000-151151 A
[0007]
[Problems to be solved by the invention]
However, these technologies improve the convenience and expandability of the camera, but it is necessary to set the operating frequency of the entire device to be high assuming that all the units that can be installed are installed. There is a problem that the power consumption is large.
[0008]
This problem is a particularly important problem for the camera because it leads to a reduction in the number of continuous shots, which is an important specification for the performance of the camera.
[0009]
The present invention has been made to solve the above-described problems, and an object thereof is to provide a unit built-in type camera capable of reducing power consumption and a method for controlling the operation of the camera.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the camera according to claim 1 is a camera configured by incorporating a plurality of units each having a predetermined function, and detecting means for detecting the plurality of incorporated units. And acquisition means for acquiring condition information relating to operating conditions of the plurality of units detected by the detection means, and the operating frequency of the entire apparatus based on the condition information of the plurality of units acquired by the acquisition means. Determining means for determining.
[0011]
According to the camera of the first aspect, the plurality of incorporated units are detected by the detection unit, and the condition information regarding the operating conditions of the detected plurality of units is acquired by the acquisition unit. In addition, the acquisition of the condition information at this time is provided by storing a memory in which each of the plurality of units stores its own condition information, and reading by reading from the memory, or the individual of each of the plurality of units. A memory for storing identification information such as an ID (Identification) number for identification is prepared, and a memory for storing the identification information and condition information of all the units that can be incorporated is prepared in advance. An example is acquisition by reading the identification information of the unit from the memory provided in the incorporated unit, and reading the condition information associated with the identification information from the memory prepared in advance. The condition information of the present invention can include a data transfer rate, an operating frequency, and power consumption.
[0012]
Here, in the present invention, the operating frequency of the entire apparatus is determined by the determining unit based on the condition information of the plurality of units acquired by the acquiring unit. The operating frequency at this time is determined in addition to determining the minimum required operating frequency at which the operation under the operating conditions indicated by the respective condition information can be realized in all of the incorporated units. For example, the value obtained by multiplying the value by a predetermined coefficient or the value obtained by adding a predetermined frequency may be determined as the operating frequency.
[0013]
That is, in the present invention, the operating frequency of the entire apparatus is determined based on the operating conditions of a plurality of incorporated units, and the operating frequency is assumed assuming that all units that can be incorporated are incorporated. The operating frequency can be lowered as compared with the case where the value is set higher, and as a result, the power consumption can be reduced.
[0014]
As described above, according to the camera of the first aspect, a plurality of incorporated units are detected, condition information regarding the operating conditions of the detected plurality of units is acquired, and based on the acquired condition information of the plurality of units. Since the operating frequency of the entire device is determined, the operating frequency can be lowered compared to the case where the operating frequency is set higher assuming that all the units that can be incorporated are incorporated, Power consumption can be reduced.
[0015]
According to a second aspect of the present invention, the camera according to the first aspect further comprises a battery that generates power to be supplied to the plurality of units, and a remaining capacity detecting unit that detects a remaining capacity of the battery. The determining means lowers the determined operating frequency by a predetermined frequency when the remaining capacity detected by the remaining capacity detecting means is less than a predetermined amount.
[0016]
According to the camera of the second aspect, the power to be supplied to the plurality of incorporated units is generated by the battery. In addition, the secondary battery which can be charged can be included in the said battery other than the primary battery which cannot be charged.
[0017]
Here, in the present invention, when the remaining capacity of the battery is detected by the remaining capacity detecting means and the remaining capacity detected by the remaining capacity detecting means is less than a predetermined amount by the determining means, the determined operating frequency is the predetermined frequency. Only lowered.
[0018]
Thus, according to the camera of the second aspect, the same effect as that of the first aspect of the invention can be achieved, and the determined operating frequency is set to a predetermined value when the remaining battery capacity is less than a predetermined amount. Since only the frequency is lowered, the power consumption of the entire apparatus can be reduced by that amount, and the occurrence of problems due to insufficient remaining battery capacity can be prevented.
[0019]
According to a third aspect of the present invention, there is provided the camera according to the first or second aspect, wherein the power consumption acquisition unit acquires power consumption values of the plurality of units and the consumption acquired by the power consumption acquisition unit. And a prohibiting means for prohibiting the operation when the total value of the power values is equal to or greater than a predetermined value.
[0020]
According to the camera of the third aspect, the power consumption values of the plurality of units are acquired by the power consumption acquisition unit. In addition, the acquisition of the power consumption value at this time is provided by storing a memory in which each of the plurality of units stores its own power consumption value and reading it from the memory, A memory storing identification information such as an ID number for individually identifying each unit is prepared, and a memory storing the identification information and power consumption values of all the units that can be incorporated in advance is prepared in advance. An example is acquisition by reading the identification information of the unit from the memory provided in the incorporated unit and reading the power consumption value associated with the identification information from the memory prepared in advance.
[0021]
Here, in the present invention, the prohibition unit prohibits the operation when the total value of the power consumption values acquired by the power consumption acquisition unit is a predetermined value or more.
[0022]
  As described above, according to the camera of the third aspect, the same effect as that of the first or second aspect of the invention can be obtained, and power consumption values of a plurality of incorporated units are acquired, Since the operation is prohibited when the total value of the power consumption values is equal to or greater than the predetermined value, the occurrence of an operational failure due to an unexpected increase in the power consumption of the entire device due to the incorporation of a plurality of units will occur. Can be prevented.
According to a fourth aspect of the present invention, there is provided the camera according to the third aspect of the present invention, wherein informing means for notifying occurrence of an abnormality when the total value of the power consumption values acquired by the power consumption acquiring means is equal to or greater than a predetermined value. Is further provided.
A camera according to a fifth aspect is the camera according to any one of the first to fourth aspects, wherein each of the plurality of units includes a storage unit that stores the corresponding condition information. is there.
According to a sixth aspect of the present invention, in the camera according to any one of the first to fourth aspects, the acquisition unit includes a storage unit that stores the condition information.
The camera according to claim 7 is the camera according to any one of claims 1 to 6, wherein the acquisition unit acquires bus rates of the plurality of units detected by the detection unit. The determining means determines the operating frequency of the entire apparatus based on the total value of the bus rates of the plurality of units acquired by the acquiring means.
[0023]
  Meanwhile, in order to achieve the above object,8The camera operation control method described is a camera operation control method configured by incorporating a plurality of units each having a predetermined function, and detects the plurality of incorporated units and detects the plurality of detected units. The condition information regarding the operating conditions of the units is acquired, and the operating frequency of the entire apparatus is determined based on the acquired condition information of the plurality of units.
[0024]
  Therefore, the claims8According to the invention described in item (1), since it operates in the same manner as the invention described in item (1), it is possible to reduce power consumption as in the invention described in item (1).
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Here, the case where the present invention is applied to a unit built-in type digital camera will be described.
[0026]
[First Embodiment]
First, the configuration of the digital camera 10 according to the present embodiment will be described with reference to FIG. FIG. 1 shows a state when all the units that can be incorporated in the digital camera 10 are incorporated.
[0027]
As shown in the figure, the digital camera 10 according to the present embodiment includes a central processing unit 12, a lens unit 14, an AE / AF unit 16, and a liquid crystal display (hereinafter referred to as “LCD”) unit 18. And a card interface unit (hereinafter referred to as “card I / F unit”) 20, an audio recording unit 22, an audio reproducing unit 24, and a power supply unit 26.
[0028]
The central processing unit 12 controls the entire operation of the digital camera 10, and includes a CPU (Central Processing Unit) 12A and a crystal oscillator for generating a clock signal that serves as the operating frequency of the entire device. It includes a clock generator (hereinafter referred to as “CG”) 12B and a ROM (Read Only Memory) 12C in which various information is stored in advance.
[0029]
The lens unit 14 includes a lens for forming a subject image at the time of imaging, a mechanism for driving the lens (hereinafter referred to as “lens driving mechanism”), and a ROM 14A in which various pieces of information are stored in advance. , Including. The AE / AF unit 16 is for realizing an AE (Automatic Exposure) function and an AF (Auto Focus) function at the time of imaging by the lens unit 14, and for the AE function. A photometric sensor for measuring the brightness of the subject, a distance measuring sensor for measuring the distance to the subject for the AF function, and a ROM 16A in which various types of information are stored in advance are included. The LCD unit 18 controls the display of a subject image or the like on the LCD, and includes an LCD, an LCD driver for driving the LCD, and a ROM 18A in which various information is stored in advance.
[0030]
The card I / F unit 20 is for attaching a portable memory card (not shown) to the digital camera 10 so as to be accessible. The card I / F unit 20 is mounted with a mechanism for mounting the memory card. It includes a memory interface that controls access to the memory card and a ROM 20A in which various information is stored in advance. The voice recording unit 22 is for recording voice at the time of shooting, and includes a microphone for collecting voice information and a ROM 22A in which various types of information are stored in advance. The audio reproduction unit 24 is for reproducing the voice recorded by the audio recording unit 22, a message by a predetermined voice, and the like, and a speaker for reproducing the voice and various information are stored in advance. ROM 24A. Furthermore, the power supply unit 26 is for supplying power for operation to each of the incorporated units. The replaceable battery 26A, and the power level generated by the battery 26A are required for each unit. And a DC / DC converter for converting into
[0031]
In the digital camera 10 according to the present embodiment, of the above units, two units of the central processing unit 12 and the power supply unit 26 are indispensable, and these units are installed in advance. Has been. Further, units other than these two units can be arbitrarily incorporated by the user according to the application.
[0032]
As shown in FIG. 1, the central processing unit 12, the AE / AF unit 16, the card I / F unit 20, the audio recording unit 22, and the audio reproduction unit 24 are incorporated in the digital camera 10 and the system. They are connected to each other via a bus BUS. Therefore, the operations of the AE / AF unit 16, the card I / F unit 20, the audio recording unit 22, and the audio reproduction unit 24 are controlled by the central processing unit 12 via the system bus BUS.
[0033]
As shown in the figure, the lens unit 14 and the LCD unit 18 are connected to the AE / AF unit 16 and the central processing unit 12 in a state of being incorporated in the digital camera 10. Accordingly, the operation of the lens unit 14 is controlled by the central processing unit 12 via the AE / AF unit 16, and the operation of the LCD unit 18 is directly controlled by the central processing unit 12.
[0034]
Further, the AE / AF unit 16, the lens unit 14, the LCD unit 18, the card I / F unit 20, the audio recording unit 22, and the audio reproduction unit 24 are incorporated in the digital camera 10 and are connected to the central processing unit 12. These are connected to each other via a transmission path 30 serving as a transmission path for unit information to be described later. Therefore, the CPU 12 </ b> A of the central processing unit 12 can obtain unit information in each unit via the transmission path 30.
[0035]
The AE / AF unit 16, the lens unit 14, the LCD unit 18, the card I / F unit 20, the audio recording unit 22, the audio reproducing unit 24, and the power supply unit 26 are incorporated into the digital camera 10 in these units. This is performed by connecting a connector (not shown) provided and a connector (not shown) for each unit provided in the central processing unit 12.
[0036]
Next, as an example of the unit information, unit information stored in advance in a ROM 24A provided in the audio reproduction unit 24 will be described with reference to FIG.
[0037]
As shown in the figure, the unit information of the audio reproduction unit 24 includes an ID number for enabling the audio reproduction unit 24 to be identified, a necessary bus rate required for the audio reproduction unit 24 ("condition information of the present invention" ”) And the information on the required operating frequency required for the audio reproduction unit 24 and the power consumption of the audio reproduction unit 24.
[0038]
Note that the AE / AF unit 16, the lens unit 14, the LCD unit 18, the card I / F unit 20, and the audio recording unit 22 also have their own ID numbers, required bus rates, and required operations, similar to the audio reproduction unit 24. Unit information composed of frequency and power consumption information is stored in advance in ROMs provided in each unit.
[0039]
By the way, the central processing unit 12 according to the present embodiment sets the frequency of the clock signal generated by the CG 12B, that is, the operation frequency of the entire apparatus (in this embodiment, 12.5 MHz, 25.0 MHz, 4 stages (50.0 MHz and 75.0 MHz). In the ROM 12C of the central processing unit 12, as shown in FIG. 3, these operating frequencies and the maximum bus rate during operation at the operating frequency are stored in association with each other.
[0040]
Next, as an operation of the digital camera 10 according to the present embodiment, an operation frequency setting process executed in the central processing unit 12 when setting the operation frequency of the entire apparatus will be described with reference to FIG. FIG. 4 is a flowchart showing the flow of processing of the operating frequency setting processing program executed by the CPU 12A of the central processing unit 12 at this time, and the program is stored in advance in a predetermined area of the ROM 12C.
[0041]
In step 100 of the figure, units other than the central processing unit 12 and the power supply unit 26 incorporated in the digital camera 10 (hereinafter referred to as “processing target unit”) are detected, and in the next step 102, the detected processing is detected. Unit information is acquired from any one of the target units via the transmission path 30.
[0042]
In the next step 104, it is determined whether or not the acquisition of the unit information of all the processing target units detected in the above step 100 is completed. If the determination is negative, the process returns to the above step 102 to make an affirmative determination. When this happens, the routine proceeds to step 106. When the processing of step 102 and step 104 is repeatedly executed, in step 102, unit information is acquired from a processing target unit for which unit information has not been acquired so far.
[0043]
Through the above processing, the CPU 12A can acquire unit information of all the processing target units.
[0044]
In step 106, the power consumption W for the entire apparatus is calculated by summing the power consumption values included in the unit information of all acquired processing target units and the power consumption values of the central processing unit 12, and In step 108, it is determined whether or not the system is established by determining whether or not the power consumption W is a value allowed in the power supply unit 26. If the determination is negative, the process proceeds to step 110. The operation frequency setting processing program is terminated after notifying the occurrence of an abnormality by making a transition and ringing a buzzer (not shown) provided in the central processing unit 12.
[0045]
On the other hand, if the determination in step 108 is affirmative, the process proceeds to step 112 where the necessary bus rate value included in the acquired unit information of all the processing target units and the required bus rate value of the central processing unit 12 are obtained. To calculate the total bus rate R for the entire apparatus.
[0046]
In the next step 114, it is determined whether or not the total bus rate R is 250 (Mbps) or less. If the determination is affirmative, the process proceeds to step 116 and the ROM 12C has a maximum bus rate of 250 (Mbps). The frequency of the clock signal generated by the CG 12B is set so as to be the associated and stored operating frequency (25.0 (MHz) in this embodiment), and then this operating frequency setting processing program is terminated. To do.
[0047]
On the other hand, if the determination in step 114 is negative, the process proceeds to step 118 to determine whether or not the total bus rate R is 500 (Mbps) or less. If the determination is affirmative, the process proceeds to step 120. The clock signal generated by the CG 12B so that the operating frequency stored in the ROM 12C in association with the maximum bus rate of 500 (Mbps) (50.0 (MHz) in this embodiment) is stored. After setting the frequency, the operation frequency setting processing program is terminated.
[0048]
On the other hand, if the determination in step 118 is negative, the process proceeds to step 122 to detect the remaining capacity Z of the battery 26A provided in the power supply unit 26, and then the process proceeds to step 124 and in step 106 described above. A threshold T is derived based on the calculated power consumption W.
[0049]
In the next step 126, it is determined whether or not the remaining capacity Z is greater than or equal to the threshold value T. If a negative determination is made, the process proceeds to step 120. If a positive determination is made, the process proceeds to step 128.
[0050]
In step 128, the clock generated by the CG 12B so as to be the operating frequency (in this embodiment, 75.0 (MHz)) stored in the ROM 12C in association with the maximum bus rate of 750 (Mbps). The signal frequency is set, and then the operation frequency setting processing program is terminated.
[0051]
Note that the threshold value T derived in step 124 is that the digital camera 10 whose power consumption is the power consumption W operates stably for a predetermined time (for example, 1 hour) when the remaining capacity Z is equal to or greater than the value. As values that can be used, values obtained in advance by experiments using an actual device of the digital camera 10 or computer simulation based on design specifications of the digital camera 10 can be applied.
[0052]
The processing of step 100 of the operating frequency setting processing program is the detection means of the present invention, the processing of steps 102 and 104 is the acquisition means and power consumption acquisition means of the present invention, and the processing of step 108 is the prohibition means of the present invention. , Step 122 corresponds to the remaining capacity detecting means of the present invention, and steps 112 to 128 correspond to the determining means of the present invention.
[0053]
As described above in detail, in the digital camera 10 according to the present embodiment, a plurality of incorporated units are detected, a necessary bus rate of the detected plurality of units is obtained, and a necessary bus of the obtained plurality of units is obtained. Since the operating frequency of the entire device is determined based on the rate, the operating frequency should be lower than when the operating frequency is set higher, assuming that all the units that can be installed are installed. Power consumption can be reduced.
[0054]
Further, in the digital camera 10 according to the present embodiment, when the remaining capacity Z of the battery 26A is less than a predetermined amount, the determined operating frequency is lowered by a predetermined frequency, so that the power consumption of the entire apparatus is correspondingly reduced. Can be reduced, and the occurrence of defects due to the shortage of the remaining capacity of the battery 26A can be prevented in advance.
[0055]
Further, in the digital camera 10 according to the present embodiment, the power consumption values of a plurality of incorporated units are acquired, and the operation is prohibited when the total value of the power consumption values is a predetermined value or more. It is possible to prevent occurrence of operational troubles due to an unexpected increase in power consumption of the entire apparatus by incorporating a plurality of units.
[0056]
Furthermore, in the digital camera 10 according to the present embodiment, unit information is stored in advance in each processing target unit, and these unit information is acquired and used by the central processing unit 12, so the version of each unit The degree of freedom of design change etc. of each unit can be improved.
[0057]
In the present embodiment, a case has been described in which communication for acquiring unit information between each unit and the central processing unit 12 is performed on a one-to-one basis, but the present invention is not limited to this. For example, after unit information is arranged between units in the same system, communication may be performed between any one of the units in the same system and the central processing unit 12. Also in this case, the same effects as in the present embodiment can be obtained.
[0058]
[Second Embodiment]
In the first embodiment, the unit information is stored in advance in each of the processing target units, and the mode in which the central processing unit 12 acquires and uses the unit information has been described. However, in the second embodiment, the unit information is used. In addition, the ID number assigned to each unit is stored in each processing target unit, and the unit information of all the units that can be installed is stored in the central processing unit 12, and the unit (processing target) A description will be given of a case where the ID number of each unit is acquired from the unit and unit information including the ID number is used.
[0059]
The configuration of the digital camera according to the second embodiment is the same as that of the digital camera 10 according to the first embodiment, and a description thereof will be omitted here.
[0060]
First, unit information stored in the ROM 12C of the central processing unit 12 according to the present embodiment will be described with reference to FIG.
[0061]
As shown in the figure, the ROM 12C of the central processing unit 12 according to the present embodiment has ID numbers, required bus rates, required operating frequencies, and power consumptions for all units that can be incorporated in the digital camera 10. Unit information constituted by each information is stored in advance for each unit.
[0062]
Next, as an operation of the digital camera 10 according to the second embodiment, an operation frequency setting process executed in the central processing unit 12 according to the second embodiment will be described with reference to FIG. Steps for performing the same processing as in FIG. 4 in FIG. 6 are assigned the same step numbers as in FIG.
[0063]
In step 102A, an ID number is acquired from any one of the processing target units detected in step 100 via the transmission path 30. Thereby, CPU12A can acquire the ID number of all the process target units.
[0064]
Therefore, in step 106A, the power consumption W as the entire apparatus is obtained by summing the power consumption values included in all unit information including the acquired ID numbers and the power consumption values of the central processing unit 12. In step 112A, the required bus rate value included in all the unit information including the acquired ID number and the required bus rate value of the central processing unit 12 are summed up to obtain a total for the entire apparatus. The bus rate R is calculated. Thereby, the same processing as the operating frequency setting processing program according to the first embodiment can be realized.
[0065]
As described above in detail, in the digital camera 10 according to the present embodiment, a plurality of incorporated units are detected, a necessary bus rate of the detected plurality of units is obtained, and a necessary bus of the obtained plurality of units is obtained. Since the operating frequency of the entire device is determined based on the rate, the operating frequency should be lower than when the operating frequency is set higher, assuming that all the units that can be installed are installed. Power consumption can be reduced.
[0066]
Further, in the digital camera 10 according to the present embodiment, when the remaining capacity Z of the battery 26A is less than a predetermined amount, the determined operating frequency is lowered by a predetermined frequency, so that the power consumption of the entire apparatus is correspondingly reduced. Can be reduced, and the occurrence of defects due to the shortage of the remaining capacity of the battery 26A can be prevented in advance.
[0067]
Further, in the digital camera 10 according to the present embodiment, the power consumption values of a plurality of incorporated units are acquired, and the operation is prohibited when the total value of the power consumption values is a predetermined value or more. It is possible to prevent occurrence of operational troubles due to an unexpected increase in power consumption of the entire apparatus by incorporating a plurality of units.
[0068]
Furthermore, in the digital camera 10 according to the present embodiment, the unit information of all the units that can be incorporated is stored and used in the central processing unit 12, so that the unit information is stored individually in each unit. Compared to the above, communication between the central processing unit 12 and each unit can be simplified.
[0069]
In each of the above embodiments, the case has been described in which each information of ID number, required bus rate, required operating frequency, and power consumption is stored as unit information. However, the present invention is not limited to this. The ID number and at least one piece of information other than the ID number may be stored.
[0070]
In this case, in all of the plurality of incorporated units, the minimum frequency capable of realizing the operation under the operation condition indicated by the stored information is set as the operation frequency of the entire apparatus. Also in this case, the same effects as those of the above embodiments can be obtained.
[0071]
In each of the above embodiments, the case where communication between each unit is performed by wire via a connector has been described. However, the present invention is not limited to this, and the communication is performed wirelessly. You can also. Also in this case, the same effects as those of the above embodiments can be obtained.
[0072]
The configuration of the digital camera 10 (see FIG. 1) described in the above embodiments is merely an example, and it goes without saying that the configuration can be appropriately changed without departing from the gist of the present invention.
[0073]
In addition, the processing flow of the operating frequency setting processing program (see FIGS. 4 and 6) described in each of the above embodiments is also an example, and it goes without saying that it can be changed as appropriate without departing from the gist of the present invention. Yes.
[0074]
Furthermore, the present invention is not limited to the digital camera, and can be applied to various cameras.
[0075]
【The invention's effect】
As described above in detail, according to the camera and the camera operation control method of the present invention, a plurality of incorporated units are detected, condition information regarding the operating conditions of the detected plurality of units is acquired, and the acquired plurality of units are acquired. Since the operating frequency of the entire device is determined based on the condition information of the unit, the operating frequency is set higher than when the operating frequency is set higher assuming that all the units that can be installed are installed. Can be reduced, and the power consumption can be reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a digital camera 10 according to an embodiment.
FIG. 2 is a schematic diagram showing unit information stored in advance in a ROM of each unit according to the embodiment.
FIG. 3 is a schematic diagram showing information stored in advance in a ROM of the central processing unit 12 according to the first embodiment.
FIG. 4 is a flowchart showing a processing flow of an operating frequency setting processing program according to the first embodiment.
FIG. 5 is a schematic diagram showing unit information stored in advance in a ROM of the central processing unit 12 according to the second embodiment.
FIG. 6 is a flowchart showing a process flow of an operating frequency setting process program according to the second embodiment.
[Explanation of symbols]
10 Digital camera
12 Central processing unit
12A CPU
14 Lens unit
16 AE / AF unit
18 LCD unit
20 card I / F unit
22 Voice recording unit
24 Audio playback unit
26 Power supply unit

Claims (8)

A camera configured by incorporating a plurality of units each having a predetermined function,
Detection means for detecting a plurality of incorporated units;
Obtaining means for obtaining condition information relating to operating conditions of the plurality of units detected by the detecting means;
Determining means for determining the operating frequency of the entire apparatus based on the condition information of the plurality of units acquired by the acquiring means;
With a camera. A battery for generating electric power to be supplied to the plurality of units;
A remaining capacity detecting means for detecting the remaining capacity of the battery;
Further comprising
The camera according to claim 1, wherein the determining unit lowers the determined operating frequency by a predetermined frequency when the remaining capacity detected by the remaining capacity detecting unit is smaller than a predetermined amount. Power consumption acquisition means for acquiring power consumption values of the plurality of units;
Prohibiting means for prohibiting operation when a total value of the power consumption values acquired by the power consumption acquisition means is a predetermined value or more;
The camera according to claim 1 or 2, further comprising:   The camera according to claim 3, further comprising notification means for notifying occurrence of an abnormality when a total value of the power consumption values acquired by the power consumption acquisition means is a predetermined value or more.   The camera according to any one of claims 1 to 4, wherein each of the plurality of units includes a storage unit that stores the corresponding condition information.   The camera according to claim 1, wherein the acquisition unit includes a storage unit that stores the condition information. The acquisition means acquires bus rates of the plurality of units detected by the detection means,
The camera according to claim 1, wherein the determining unit determines an operating frequency of the entire apparatus based on a total value of bus rates of the plurality of units acquired by the acquiring unit. . An operation control method for a camera configured by incorporating a plurality of units each having a predetermined function,
Detects multiple units installed,
Obtaining condition information on the detected operating conditions of the plurality of units;
An operation control method for a camera, which determines an operation frequency of the entire apparatus based on the acquired condition information of the plurality of units.

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