JPH10174798A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable more optimum operation control by providing an image pickup unit photographing even external washing information, etc., such as a vibration at the time of dehydrating and treatment figure display, etc., and fetching it as data and executing the judgement of a water amount, the detection of a water level and the detection of rincing based on the data. SOLUTION: Before washing, treatment figure display attached to clothes is directed towards an image sensor 20 in an image recognizing device 300, a figure display reading key is operated so as to photograph figure display, it is collated with stored figure display and the instruction of a washing program corresponding to it is executed. In this case, when a favorite course is selected in an input part 101, washing is executed by the washing program of the favorite course. Unless the favorite course is selected, washing is executed in accordance with the optimum washing program based on recognized figure display. Then, during washing, the image sensor 20 observes the movement of washings, the rotary number of a motor 5 is controlled and the water level is adjusted, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for photographing the operating state of a washing machine in each step of the washing machine and controlling the operation based on the image information.

[0002]

2. Description of the Related Art As a known washing machine of this type, there has been proposed a washing machine for controlling the operation of a washing machine by photographing the inside of a washing tub. For example, Japanese Unexamined Patent Publication No. 4-244193 discloses a method for determining the amount and quality of laundry and the degree of soiling and rinsing of the laundry, and in order to operate the washing machine with accurate contents. An image recognizing device which includes a photographing device (CCD camera) for photographing the inside of the tank, and performs data processing of images photographed by the photographing device, and a control for determining and executing operation contents based on an output from the image recognizing device. A washing machine provided with a control means for performing the above is disclosed.

[0003]

In the above-described conventional washing machine, the situation inside the washing tub is photographed, but the rest is not photographed. Is not reflected, and the detection of the cloth amount is disclosed, but the water level is merely indirectly detected by the water level sensor based on the data of the cloth amount as in the past. Although the rinsing completion detection is disclosed, since it is determined based on the water permeability, it may not be accurately determined depending on the amount of laundry or the difference in color.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The purpose of the present invention is to capture information such as vibrations during dehydration and external washing information such as pictograms for handling clothes and take in as data. It is an object of the present invention to provide a washing machine capable of more optimal operation by performing more appropriate determination of the water amount, direct detection of the water level, and more accurate rinsing detection.

[0005]

SUMMARY OF THE INVENTION The washing machine of the present invention has been made in order to achieve the above object, and the invention according to claim 1 is provided with a mark on the washing tub which can directly recognize the water level. A control means is provided for judging whether or not the water amount is appropriate and determining the water level based on the image processing result of the image processing device which processes the photographed image.

According to a second aspect of the present invention, in the first aspect of the invention, in the rinsing step, the state of foaming is photographed by an image pickup device, and the degree of foaming is determined based on the result. Then, a control means for terminating the rinsing step is provided.

According to the third aspect of the present invention, in order to perform finer control, in the determination of foaming, the conditions such as the user's sensation and whether or not the detergent is easy to foam are used.
The user is provided with a foam level selection key that allows the user to select a discrimination level. Needless to say, the selection of the foam level is not limited to the rinsing step, and the foam level during the washing can be selected separately in the washing step. It is provided with a level selection key.

According to a fourth aspect of the present invention, the movement of the laundry in the washing tub is photographed by an imaging device, and the state of the movement of the laundry (for example, speed, cloth entanglement, etc.) is determined based on the result. The control means is provided for changing the rotation speed of the motor driving the washing tub so as to make a judgment and obtain a predetermined movement.

Further, according to a fifth aspect of the present invention, the state of splashing of water in the washing tub is photographed by an image pickup device, and the state of splashing of water is determined based on the result, and the splashing of water is within a predetermined range. Thus, the control means for changing the rotation speed of the motor for driving the washing tub is provided.

Further, the invention according to claim 6 is based on an imaging device for photographing the inside of a washing machine, an image processing device for processing data of an image photographed by the imaging device, and an output from the image processing device. It is provided with control means for performing control for determining and executing the operation content, and a mark for detecting vibration.

Further, the invention according to claim 7 is provided with means for judging a vibration level based on whether or not a locus drawn by a mark provided for detecting vibration is within a frame on a preset image. It is. Claim 8
The described invention is provided with display means for photographing external information other than the operating state of the washing machine such as a picture display for handling clothes by an imaging device, processing the information based on the result, and displaying the processed information. It is.

[0012] Further, the invention according to claim 9 is to select whether to execute a washing program based on external information such as a pictorial display of clothes handling or to select a standard course (or a favorite course in some cases). The key input means is provided. Furthermore, the invention according to claim 10 is provided with an illuminating device for turning on or off the illumination for photographing in accordance with the drive timing of the imaging device.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a washing machine, in which an image pickup device captures an operation state of the washing machine in each step of the washing machine, and the image processing device performs data processing of the captured image.
The operation content is determined based on the output from the image processing device,
This is executed by control means.

Hereinafter, embodiments of a washing machine of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view showing a schematic structure of a washing machine according to the present invention. In FIG. 1, reference numeral 1 denotes a box-shaped outer tub of the washing machine, and a water tub 2 is suspended by a hanging rod 3 via a vibration absorbing spring 4. It is swingably suspended. A drive motor 5, a transmission gearbox 6, and the like are disposed below the water tank 2, and rotation of the drive motor 5 is transmitted to a rotation shaft 8 of the transmission gearbox 6 via a belt 7. The rotational speed of the drive motor 5 can be changed as appropriate by inverter control.

Reference numeral 9 denotes a pulsator for stirring the laundry,
Is a washing tub and dehydration tub. The dehydration tub 9 is provided with a predetermined number of dehydration holes 11 for shaking off water discharged from the laundry during dehydration. Numeral 12 denotes an outer lid which is opened and closed when taking in and out the laundry. Reference numeral 13 denotes a water supply valve for controlling water supply. A drain valve 14 controls drain water. Reference numeral 15 denotes an imaging device including a lens, an image sensor, and the like, and an illumination device (not shown, which corresponds to 107 in FIG. 6) is provided on the back side thereof.

Next, an electronic control circuit which is a control means of the embodiment of the washing machine of the present invention will be described. As shown in FIG. 6, reference numerals 200 to 206 indicate the configurations of the imaging device and the image processing device.

In FIG. 6, reference numeral 200 denotes an image pickup device.
Color CMOS (Complementary Me)
tal Oxide Semiconductor), an image sensor pre-processing unit 201 which double-samples and holds a raw signal from the image sensor 200 to reduce noise, perform automatic gain correction, and the like; and 202, an analog image sensor. An A / D converter 203 converts a major signal into a digital signal. Reference numeral 203 denotes an image sensor signal processing unit which converts a digital imager raw signal into a luminance signal and a color signal.

Reference numeral 205 denotes an image processing processor which executes a sensing processing (image processing) algorithm and outputs an image processing result. Reference numeral 206 denotes one imager (one frame) for the image processing processor 205 to perform image processing. ) Is a frame memory for storing data. A timing generator 204 drives the image sensor 200 at a predetermined timing.

A control device 100 includes a microcomputer and a memory for executing a washing program based on an input of an image processing result from the image processor 205 and an input from the key input unit 101 and the like.
Reference numeral 103 denotes a drive circuit for driving each unit according to the washing to spin-drying program.
A display unit (display / notification unit) that performs display, audio notification, and the like.

Reference numeral 104 denotes a motor corresponding to the driving motor 5 in FIG. 1, reference numeral 105 denotes a water supply valve corresponding to the water supply valve 13 in FIG. 1, and reference numeral 106 denotes a water supply valve corresponding to the drain valve 14 in FIG. Reference numeral 107 denotes an illumination device for photographing. Reference numeral 108 denotes various sensors such as a drainage sensor and a rotation sensor.

The key input unit 101 includes a washing course selection key, a start key, a picture display reading key, a foam level selection key for selecting a foam discrimination level for rinsing, and a foam bubble for washing for selecting a foam level in the washing process. It consists of a level selection key and the like.

In FIG. 1, 17a, 17b,
17c, 17d, 17e, 17f and 17g are marks indicating the water level provided on the inner wall of the washing / dewatering tub 10,
Here, the state at the time of water supply will be described with reference to FIG. 2. When the laundry 21 is put in and supplied with water, the laundry 21 appears to be raised as shown in FIG.

Then, when the pulsator 9 is rotated while supplying water, the laundry 21 is adapted to the water 22, and finally the laundry 21 is almost in a fluttered state as shown in FIG. 2 (b). At this time, the water supply valve 13 is closed to stop water supply. At this time, if the image is captured by the image sensor 200, the boundary between the water surface of the water 22, which appears slightly black (dark) and the inner wall of the washing / dewatering tub 10, can be clearly read as shown in FIG.

FIG. 3 (a) is a side view showing the state of the boundary between the water 22 and the inner wall at that time, and FIG. 3 (b) is also a front view, and according to FIG. Can be read, and the water level can be directly detected in a state close to visual observation. Therefore,
The amount of washing water can be properly managed according to the laundry, which is wasted. In FIG. 3B, the water level marks 17 are represented by linear projections arranged horizontally and the level numbers 18.
The color may be changed for each mark so that the level of the water level can be determined by looking at the color. The level of the water level can also be increased or decreased.

Next, the operation of the water level detection and the water amount detection will be described with reference to the flowchart of the washing program showing the water level detection and the water amount detection operation of FIG. First, the laundry 21
Into the washing / dewatering tub 10, and the water supply valve 13 is opened in step # 10. When the water surface in the washing / dewatering tub 10 can be observed by the image sensor 200 in step # 20, the washing / dewatering tub 10 is rotated forward / reverse in step # 30.

At step # 40, whether the laundry 21 is sufficiently immersed in the water is monitored by the image sensor 200 as described above, and if so, the water supply valve 13 is closed at step # 50. Then, in step # 60, the water level is read by the above method, and in step # 70, the detergent amount suitable for the water level is automatically supplied.

A detergent supply device capable of automatically supplying a detergent amount set in accordance with a difference in water supply amount and a difference in detergent type is disclosed in Japanese Patent Application Laid-Open No. 62-189094, and will not be described. Then, in step # 80, washing is performed according to a predetermined washing program. The detergent amount may be displayed regardless of the detergent supply device, and the user may put the detergent.

Next, referring to the flowchart of the washing program showing the operation of determining the suitability of the detergent in FIG.
The foaming in the washing process and the optimization of the detergent amount will be described. In the washing process, in step # 110, it is determined whether or not foaming is in a predetermined state by the following foam determination method.
If less than the predetermined state, a predetermined amount of detergent is automatically added in step # 120.

The details of the additional detergent supply apparatus are omitted since they are disclosed in Japanese Patent Application Laid-Open No. 2-92395. Then, if a predetermined time has elapsed from the point of time when the last detergent is supplied in step # 130, the washing process is terminated in step # 140. Note that the amount of the additional detergent may be displayed without depending on the detergent supply device, and the user may add the detergent.

In order to perform finer control,
The foam level selection at the time of washing in which the user can select the foam level in the washing process so that the user can select the discrimination level from the conditions such as the user's feeling and whether or not the detergent is easy to foam in the foam determination method in step # 110. A key may be provided.

Next, the optimization of the rinsing step will be described with reference to FIG. At first, a state in which the bubbles 31 float on the water 22 is observed as shown in FIG. 4, and as the rinsing progresses, the bubbles 31 become smaller and finally disappear.
This change in state can be captured to determine the end of rinsing. Since the bubbles 31 appear white regardless of the color of the water 22, the water 2
2 and the bubble 31 can be distinguished.

Next, the operation of judging whether the rinsing process is appropriate will be described with reference to the flowchart of the washing program for judging whether the rinsing process is appropriate in FIG. In FIG. 9, it is determined in step # 310 whether or not foaming has been eliminated by the above-described foam determination method. If foaming has been eliminated, the rinsing process ends in step # 320.

In order to perform finer control,
In the foam discriminating method of step # 310, a foam level selection key may be provided so that the user can select a discriminating level based on conditions such as the user's feeling and whether the detergent is easily foamed.

Next, the optimization of the vibration in the dehydration step will be described. In FIG. 1, a mark 16 is provided on a part of the water tank 2, and when the movement of the mark is photographed by the image sensor 200 in the dehydration step, a locus 41 in FIG. 5 is obtained.

This is because when the washing / dewatering tub 10 is rotated, the water tub 2 is not balanced due to the imbalance of the washing / dewatering tub 10.
Is a trajectory 41 drawn by the mark 16 by swinging. In FIG. 5, reference numeral 16 'denotes an image of the mark 16. 4
Reference numerals 2 and 43 denote swing limit circles (frames) indicating the limits of the swing range set in advance on the image. Reference numeral 42 denotes an allowable range for the start-up determination from low-speed to high-speed rotation.
Shows the limit of the swing over the entire number of rotations from low speed to high speed rotation.

Next, the operation of optimizing the vibration in the dehydrating step will be described with reference to the flowchart of the washing program showing the operation of optimizing the vibration in the dehydrating step in FIG. In the dehydration step, it is determined in step # 420 whether the vibration is equal to or less than a predetermined value by the above-described vibration determination method
If it exceeds the predetermined value, the rotation of the washing / dewatering tub 10 is stopped in step # 430. Returning to step # 400, the dewatering step is repeated. Then, step # 42
If the vibration does not exceed the predetermined value at 0, step # 410
Then, it is determined whether or not a predetermined dehydration time has elapsed. If the predetermined time has elapsed, the dehydration step ends in step # 440.

Next, a description will be given of the operation of displaying the picture of handling clothes. FIG. 13 to FIG. 19 are explanatory diagrams for explaining the handling pictorial display of clothing, and appropriate clothing is attached to each clothing. This pictorial display attached to the clothing is photographed by the image sensor 200 and is compared with the pictorial displays of FIGS. 13 to 19, and the corresponding FIG.
3 to 19 and the instructions of the washing program are executed.

Next, the operation of displaying the handling picture of clothing will be described with reference to the flowchart of FIG. 11 showing the operation of displaying the handling picture of clothing. The handling picture display attached to the laundry is directed toward the image sensor 200, and a picture display reading selection key is input. Step # 5
In step # 510, the data is read by the above method at 00.
In accordance with the pictorial display recognized in step (1), the meaning of the pictorial display is displayed on the display unit 103.

If the favorite course of the key input unit 101 is selected in step # 520, washing is performed in the washing program of the favorite course in step # 540. on the other hand,
If your favorite course is not selected in step # 520,
Based on the picture display recognized above in step # 530,
The most suitable washing program is selected and washing is performed.

It is to be noted that the picture display is not limited to the example described above, and various kinds of information can be read and displayed. For example, there is also an embodiment in which a handwritten washing program recognizes "10 minutes of washing" or "5 minutes of dehydration".

Next, the operation of optimizing the water flow will be described with reference to FIG.
A description will be given together with a flowchart of a washing program showing the operation of water flow optimization of No. 2. The flowchart of FIG. 12 shows that the movement of the laundry is
The control is performed by changing the rotation speed of the motor 5 for driving the pulsator 9 to rotate by observing at 0.

In the movement of the laundry, the shape of the laundry changes every moment due to the movement of the laundry itself, and a part of the shape at that time is captured, and the rotation angle of the portion per predetermined time (for example, one second) is obtained. It is like that. Thus, the movement of the laundry 21 is determined in step # 220,
If the speed is lower than the predetermined speed, the motor 5
Is controlled so that the rotation speed of the motor 5 is increased in a stepwise manner. Further, it is determined whether or not the rotation speed of the motor 5 should be reduced based on the splash of water observed by the image sensor 200 in step # 240. (At least when there is scattering outside the washing tub), control is performed in step # 250 so that the number of revolutions of the motor 5 is reduced stepwise.

In this way, it is possible to apply the maximum mechanical force to the laundry until the end of the washing time within a range where water does not scatter, so that the washing effect can be maximized. Then, it is determined in step # 210 whether or not the washing time has ended. If it is determined that the predetermined washing time has elapsed, the washing process is ended in step # 260.

Next, the control of the lighting device 107 will be described.
The lighting is turned on or off in accordance with the timing of the driving. The purpose of the illumination device 107 is to secure the brightness during shooting. Therefore, the driving circuit 102 controls the illumination to be turned on immediately before the image is captured by the image sensor 200 and to be turned off after the imaging is completed. As a result, it is effective to reduce unnecessary power consumption and extend the life of the lighting device.

In FIG. 6, 300 is 200 to 2
06 is an image recognition device showing an integrated configuration of an image sensor and an image processing device, each of which comprises a CMOS (CM)
OS: Complementary Metal Ox
An image recognition device in which an image sensor and an image processing device that can be manufactured in the same process as another image processing device and an image processing device are configured in a single chip like an image semiconductor (sensor) sensor. The use of a manufacturable CMOS sensor has made it possible to make it a single chip, which was difficult with a conventional CCD image sensor.

That is, the process period is shortened, and the production can be performed at low cost. By applying this to a white goods appliance such as a washing machine of the present invention, it is possible to provide a low cost, compact white goods appliance such as a washing machine having a high-performance image recognition function.

The present invention is not limited to the above-described embodiment, but can be implemented with appropriate modifications without departing from the scope of the invention. Further, the present invention can be appropriately applied to a drum type washing machine, a stirring type washing machine, and a washing / drying machine.

[0048]

Since the washing machine of the present invention is constructed as described above, the invention according to claim 1 determines the realistic appropriate amount of water directly from the state in which laundry is immersed in water in the washing tub. The water level at that time can be directly detected from the scale of the water level in the washing tub, so that appropriate and more detailed control is possible.

According to the second aspect of the present invention, in the rinsing step, since the bubbling state can be directly detected in a state close to visual observation, control close to the user's feeling can be performed, and unnecessary rinsing can be prevented. Insufficient rinsing is also eliminated. In the washing step and the rinsing step, the amount of detergent used during washing, the rinsing time,
Finer control of the amount of rinsing water is possible.

According to the fourth aspect of the present invention, since the movement of the laundry in the washing tub is directly observed, it can be determined whether or not the rotation of the motor actually works for washing. If not, feedback such as increasing the number of revolutions of the motor is applied, so that more appropriate washing can be performed.

Further, in the invention according to claim 5, since the state of splashing of water in the washing tub is directly observed, it is possible to control the splashing of water to a predetermined level or less. It is possible to control the number of rotations of the motor so that a limited torque can be output. As a result, the cleaning power can be improved or the cleaning time can be reduced.

Furthermore, in the invention according to claim 6, since vibration can be directly detected in a non-contact manner, the variation of the sensor is smaller than that of a vibration sensor such as an acceleration sensor, and the sensitivity in one direction is particularly good. Needless to say, vibrations in each direction can be detected uniformly without being caught by the directionality.

Further, according to the invention of claim 7, since the vibration level can be determined from vibrations in all directions that can be detected without being limited to one direction, the control can be performed with higher reliability. And the invention of claim 8 is:
In addition to the operating status of the washing machine, for example, from the pictorial display of clothing,
Various information can be conveyed to the user on the spot in an easy-to-understand manner, for example, by explaining the handling method on the display unit.

According to the ninth aspect of the present invention, a washing program based on external information such as a pictorial display of clothing handling is automatically and unilaterally determined and not executed. . Further, since the illumination for photographing is turned on or off in synchronization with the drive timing of the imaging device, the invention according to claim 10 contributes to a reduction in power consumption and a longer life of the illumination device.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a schematic structure of a washing machine according to an embodiment of the present invention.

FIG. 2 is a top view showing a state in which laundry is placed in a washing tub, showing the embodiment of the washing machine of the present invention.

FIG. 3 is a cross-sectional view illustrating a principle of detecting a water level according to the embodiment of the washing machine of the present invention.

FIG. 4 is a top view for explaining a state of detecting a foam, showing the embodiment of the washing machine of the present invention.

FIG. 5 is an image model diagram for explaining a detection state of a trajectory drawn by a mark showing the embodiment of the washing machine of the present invention.

FIG. 6 is a block diagram of an electronic control circuit of the washing machine showing the embodiment of the washing machine of the present invention.

FIG. 7 is a flowchart of a washing program showing operations of water level detection and water amount detection of the washing machine of the present invention.

FIG. 8 is a flowchart of a washing program showing an operation of determining whether or not detergent is appropriate in the washing machine of the present invention.

FIG. 9 is a flowchart of a washing program showing an operation of judging appropriateness of a rinsing step of the washing machine of the present invention.

FIG. 10 is a flowchart of a washing program showing an operation of optimizing vibration in a spin-drying step of the washing machine of the present invention.

FIG. 11 is a flowchart of a washing program showing a handling picture display operation of clothing of the washing machine of the present invention.

FIG. 12 is a flowchart of a washing program showing an operation of judging appropriateness of water flow in the washing machine of the present invention.

FIG. 13 is an explanatory diagram showing the relationship between the handling pictorial indications of clothes for washing and the meaning of each pictorial indication for explaining the embodiment of the washing machine of the present invention.

FIG. 14 is a diagram illustrating the relationship between the pictorial indications of the handling of clothing and the meaning of each pictorial indication of whether chlorine bleaching is possible or not, for describing an embodiment of the washing machine of the present invention.

FIG. 15 is an explanatory diagram showing the relation between the pictorial indications of the handling of clothing in the manner of ironing and the meaning of each pictorial representation for explaining the embodiment of the washing machine of the present invention.

FIG. 16 is a diagram for explaining the embodiment of the washing machine according to the present invention, showing the relationship between the handling pictorial indications of clothes and the meaning of each pictorial indication of whether or not dry cleaning is possible;

FIG. 17 is an explanatory diagram showing the relationship between the handling pictorial indications of clothing in the manner of squeezing and the meaning of each pictorial indication for explaining the embodiment of the washing machine of the present invention.

FIG. 18 is an explanatory diagram showing the relation between the pictorial indications of the clothes to be dried and the meaning of each pictorial representation for explaining the embodiment of the washing machine of the present invention.

FIG. 19 is an explanatory diagram showing the relationship between the handling picture display of clothing and the meaning of each picture display in the supplementary example for describing the embodiment of the washing machine of the present invention.

[Explanation of symbols]

 2 Water tank 5 Driving motor 10 Washing / dewatering tank 15 Imaging device 16 Mark 17 Mark 100 Control device 200 Image sensor 21 Laundry 22 Water 31 Bubbles 41 Trace

Claims (10)

[Claims] An imaging device for photographing the inside of a washing tub, an image processing device for performing data processing of an image photographed by the imaging device, and control for determining and executing operation contents based on an output from the image processing device. And a washing tub provided with a mark indicating a water level. 2. A control means for photographing the foaming state in the rinsing step by the image pickup device, judging the degree of foaming based on the photographed result, and terminating the rinsing step if the foaming is equal to or less than a predetermined foaming. The washing machine according to claim 1, wherein the washing machine comprises: 3. A foam level selection key for allowing the user to select a discrimination level based on conditions such as a user's feeling and whether or not the detergent is easy to foam in discriminating foaming in order to perform finer control by the control means. The washing machine according to claim 1, wherein the washing machine comprises: 4. The movement of the laundry in the washing tub is photographed by an imaging device, and the state of the movement of the laundry, such as speed, cloth entanglement, is determined based on the result, and a predetermined movement is obtained. The washing machine according to claim 1, further comprising control means for changing a rotation speed of a motor for driving the washing tub. 5. A state in which water spatters in the washing tub is photographed by an imaging device, and based on the result, the state of water spattering is determined, and the washing tub is driven so that the water spattering falls within a predetermined range. 2. The washing machine according to claim 1, further comprising control means for changing the number of rotations of the motor. 6. An imaging device for photographing the inside of a washing machine, an image processing device for performing data processing of an image photographed by the imaging device, and control for determining and executing operation contents based on an output from the image processing device. A washing machine comprising: a control unit for performing the operation; and a water tank provided with a mark for detecting vibration. 7. A means for determining a vibration level based on whether or not a locus drawn by a mark provided for detecting the vibration is within a frame on a preset image. The washing machine according to claim 6, wherein 8. A display means for photographing external information other than the operation state of the washing machine, such as a picture display for handling clothes, with an image pickup device, processing and displaying the information based on the result. A washing machine, characterized in that: 9. The apparatus according to claim 1, further comprising a selection key input means for executing the washing program based on the external information such as the picture display of the handling of the clothing, or selecting a standard course, a favorite course, or the like. The washing machine according to claim 8, wherein 10. A washing machine comprising an illuminating device for turning on or off an illumination for photographing in accordance with a drive timing of the imaging device.