JP6582882B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator.

  Patent Document 1 describes a refrigerator. The refrigerator described in Patent Document 1 includes a camera and a light. In the refrigerator described in Patent Document 1, the light is turned on when the interior is imaged by the camera.

International Publication No. 2014/142119

  In recent years, refrigerators have been proposed that delay the deterioration of vegetables by exposing the vegetables to light. For example, there is a refrigerator that activates chlorophyll and promotes the production of vitamin C by illuminating green leafy vegetables. A light source used in such a refrigerator irradiates light having a specific wavelength according to the application. For this reason, when the light source for irradiating light to vegetables is used as a light source for photography, a clean image of the vegetable room could not be obtained.

  The present invention has been made to solve the above-described problems. The objective of this invention is providing the refrigerator which can acquire the beautiful image of a vegetable room using LED for irradiating light to the vegetable put in the vegetable room.

The refrigerator which concerns on this invention is 1st LED which irradiates the vegetable room with the light of the 1st wavelength band, 2nd LED which irradiates the vegetable room with the light of the 2nd wavelength band different from the 1st wavelength band, and the image of the vegetable room And a control device for controlling the first LED and the second LED in accordance with the circadian rhythm of vegetables. When acquiring an image with an image acquisition apparatus, a control apparatus controls 1st LED and 2nd LED so that white light is irradiated to a vegetable room. The first LED emits blue light. When acquiring an image by the image acquisition device when the blue light is emitted from the first LED, the control device strengthens the blue light emitted from the first LED before acquiring the image.
The refrigerator according to the present invention includes a first LED that irradiates a vegetable room with light in the first wavelength band, a second LED that irradiates the vegetable room with light in a second wavelength band different from the first wavelength band, and the first wavelength band. And a third LED that irradiates the vegetable room with light of a third wavelength band different from the second wavelength band, an image acquisition device that acquires an image of the vegetable room, a first LED, a second LED, and a third LED. And a control device that controls the rhythm. When acquiring an image with an image acquisition apparatus, a control apparatus controls 1st LED, 2nd LED, and 3rd LED so that white light is irradiated to a vegetable room. The first LED emits blue light. The second LED emits green light. The third LED emits red light. When acquiring an image by the image acquisition device when light is emitted from all of the first LED, the second LED, and the third LED, the control device strongly strengthens the blue light emitted from the first LED before acquiring the image. Then, the green light emitted from the second LED is weakened, and the red light emitted from the third LED is weakened.

Refrigerator, a first 2LED for irradiating light in the first wavelength band and the 1LED irradiating the vegetable compartment, light of different second wavelength band from the first wavelength band vegetables chamber, vegetables chamber according to the invention comprising an image acquisition device for acquiring an image of a correction means for correcting the image acquired by the images acquisition device, and a control means for the first 1LED and second 2LED controlled in accordance with the circadian rhythm of vegetables, the. When the first LED and the second LED are controlled by the control unit so that white light is irradiated to the vegetable room when the image acquisition device acquires an image, the correction unit displays the image acquired by the image acquisition device. Do not correct.

If it is the refrigerator which concerns on this invention, the beautiful image of a vegetable room can be acquired using LED for irradiating light to the vegetable put into the vegetable room.

It is a figure which shows the cross section of the refrigerator in Embodiment 1 of this invention. It is a figure which shows the electrical connection of the apparatus with which the refrigerator was equipped. It is a flowchart which shows the operation | movement of the refrigerator in Embodiment 1 of this invention. It is a figure which shows the timing chart when a refrigerator performs the operation | movement shown in FIG.

  The present invention will be described with reference to the accompanying drawings. The overlapping description will be simplified or omitted as appropriate. In each figure, the same reference numerals indicate the same or corresponding parts.

Embodiment 1 FIG.
1 is a diagram showing a cross section of a refrigerator 1 according to Embodiment 1 of the present invention. FIG. 2 is a diagram illustrating electrical connections of devices provided in the refrigerator 1. First, the whole structure of the refrigerator 1 is demonstrated with reference to FIG.1 and FIG.2. The refrigerator 1 includes, for example, a main body 2, doors 8 to 11, an operation panel 12, a control device 15, an opening / closing sensor 16, a compressor 17, a cooler 18, a blower 19, a light emitting device 20, and a camera 24.

  A plurality of rooms are formed in the main body 2 for containing ingredients and the like. For example, the main body 2 is formed with a refrigerating room 3, a switching room 4, an ice making room (not shown), a freezing room 5, and a vegetable room 6. Each room formed in the main body 2 is partitioned by a heat insulating material such as urethane foam. The number, type, and arrangement of the rooms formed in the main body 2 are not limited to the example shown in FIG.

  The refrigerator compartment 3 is a room with the largest capacity, for example. A chilled chamber 7 may be provided in the refrigerator compartment 3. The chilled room 7 is a room for putting meat and fish. The refrigerator compartment 3 is opened and closed by a door 8.

  The operation panel 12 is provided on the front surface of the door 8, for example. The operation panel 12 may be provided on another door or the main body 2. The operation panel 12 includes an input unit 13 and a notification unit 14, for example. The user operates the input unit 13 to input information. For example, the user operates the input unit 13 to set the temperature of each room. The notification unit 14 notifies the user. For example, the operation panel 12 includes a display and a speaker as the notification unit 14. The operation panel 12 is electrically connected to the control device 15.

  The switching chamber 4 is a room in which the temperature can be switched. For example, a plurality of temperatures are registered in advance in the control device 15 as the set temperatures of the switching chamber 4. For example, the user operates the input unit 13 of the operation panel 12 to select the set temperature of the switching chamber 4. The switching chamber 4 is opened and closed by a door 9. The ice making room is a room for making and storing ice. The ice making room is arranged next to the switching room 4.

  The freezer room 5 is a room for freezing foods and the like. The temperature of the freezer compartment 5 is maintained, for example, below freezing point. The freezer compartment 5 is opened and closed by a door 10.

  The vegetable room 6 is a room for containing vegetables and the like. A large beverage container may be placed in the vegetable compartment 6. For example, a 2 L plastic bottle may be put in the vegetable compartment 6. The vegetable compartment 6 is opened and closed by a door 11.

  An open / close sensor is provided for each of the doors 8 to 11. For example, the open / close sensor 16 is provided on the door 11 of the vegetable compartment 6. The open / close sensor 16 detects that the door 11 is open or closed. The result detected by the open / close sensor 16 is input to the control device 15. The control device 15 counts the time during which the door 11 is open based on the result detected by the open / close sensor 16. The control device 15 may count the time during which the door 11 is closed. The control device 15 uses the counted time as a control parameter for various controls. For example, when the control device 15 determines that the door 11 is opened for the first reference time or longer, the control device 15 notifies the notification from the notification unit 14 of the operation panel 12. For example, the control device 15 sounds a buzzer or chime provided as the notification unit 14. This alerts the user.

  The compressor 17 and the cooler 18 constitute a part of the refrigeration cycle provided in the refrigerator 1. The compressor 17, the cooler 18, and the blower 19 are electrically connected to the control device 15. When the blower 19 operates, an air flow is generated inside the refrigerator 1. Thereby, the air cooled by the cooler 18 passes through the air duct and is sent to each room. In each room, an air outlet for taking in cold air is formed. Ingredients stored in the room are cooled by the cold air taken into the room from the outlet. The air warmed by cooling the food in each room returns from the suction port and enters the duct. The air that has passed through the return duct reaches the cooler 18 and is cooled again by passing through the cooler 18.

  Each operation of the compressor 17, the cooler 18, and the blower 19 is controlled by the control device 15. For example, a temperature sensor (not shown) is provided in each room formed in the main body 2. The temperature sensor is composed of, for example, a thermistor for temperature detection. Information on the temperature detected by the temperature sensor is input to the control device 15. The control device 15 controls each operation of the compressor 17, the cooler 18, and the blower 19 based on, for example, information input from the temperature sensor and information input from the operation panel 12. The control device 15 controls the operation of a damper (not shown) that opens and closes the air passage.

  The control device 15 may transmit / receive information to / from an external device. For example, the control device 15 receives a signal for changing the set temperature from an external device. The control apparatus 15 may receive the signal for confirming the condition in a store | warehouse | chamber from an external apparatus. The external device includes, for example, a smartphone.

  The light emitting device 20 irradiates the vegetable compartment 6 with light. The light emitting device 20 is provided in the vegetable compartment 6, for example. The light emitting device 20 is provided on the back wall surface among the wall surfaces forming the vegetable compartment 6. The light emitting device 20 is electrically connected to the control device 15. The light emitting device 20 is controlled by the control device 15. The light emitting device 20 includes, for example, an LED 21, an LED 22, and an LED 23. LED is an abbreviation for Light Emitting Diode.

  The LED 21 emits blue light. Hereinafter, the blue light is also referred to as “B light”. For example, the wavelength of B light emitted from the LED 21 is 430 to 500 nm. B light from the LED 21 is irradiated to the vegetable compartment 6.

  The LED 22 emits green light. Hereinafter, the green light is also referred to as “G light”. For example, the wavelength of G light emitted from the LED 22 is 500 to 550 nm. G light from the LED 22 is applied to the vegetable compartment 6.

  The LED 23 emits red light. Hereinafter, the red light is also referred to as “R light”. For example, the wavelength of the R light emitted from the LED 23 is 600 to 780 nm. The R light from the LED 23 is applied to the vegetable compartment 6.

  The LED 21, LED 22, and LED 23 can be individually controlled by the control device 15. When all of the LED 21, LED 22, and LED 23 are lit at the same time and rated, white light is emitted from the light emitting device 20. In the light emitting device 20, the LED 21, LED 22, and LED 23 may be configured as one package. For example, a three-color LED may be adopted as the light emitting device 20. Moreover, you may comprise each of LED21, LED22, and LED23 as one package.

  The camera 24 photographs the vegetable compartment 6. The camera 24 is an example of an image acquisition device that acquires an image of the vegetable compartment 6. The image acquisition device is not limited to the camera 24. The camera 24 is provided in the vegetable compartment 6, for example. The camera 24 is provided on the back wall surface among the wall surfaces forming the vegetable compartment 6. The camera 24 is electrically connected to the control device 15. The camera 24 is controlled by the control device 15. Information on the image of the vegetable compartment 6 taken by the camera 24 is input to the control device 15.

Next, the relationship between vegetables and light will be described.
Living things have a circadian rhythm. In other words, many living creatures live in a normal state that there is day and night. Plants are no exception. Since vegetables are alive after harvesting, it is reasonable to provide an environment with day and night even for vegetables stored in the refrigerator 1. In other words, as before harvesting, it is preferable that the time zone in which light is irradiated and the time zone in which light is not irradiated alternate.

  For this reason, in the refrigerator 1, the light emitting device 20 is repeatedly turned on and off at a constant rhythm. It is preferable that the time during which the light emitting device 20 is turned on and the time during which the light emitting device 20 is turned off are the same. Moreover, it is preferable that the time when the light-emitting device 20 is turned on and the time when the light-emitting device 20 is turned off are each 5 hours or longer. For example, 5 to 15 hours are suitable as the time during which the light emitting device 20 is lit. The time when the light emitting device 20 is turned off is preferably 5 to 15 hours. This is because if lighting and extinguishing are repeated in a short cycle, it becomes dark before the biosynthesis function of vegetables is activated. If the cycle of turning on and off is short, the result is the same as not irradiating light.

  The light of the wavelength which becomes a cue that light has begun to hit for plants is B light. When B light hits a plant, the plant opens pores and takes in carbon dioxide necessary for biosynthesis from the air. Therefore, when irradiating light to vegetables, it is important that B light is included at the start of irradiation. G light and R light promote activation of chlorophyll and synthesis of sugar, vitamin C and the like by biosynthetic functions. For this reason, when irradiating vegetables with B light, it is good to irradiate vegetables also with G light and R light.

  The amount of B light is more effective than the amount of G light and the amount of R light. For example, the amount of B light may be ¼ or less of the amount of G light and the amount of R light. Desirably, the amount of B light is 1/5 to 1/10 of the amount of G light and the amount of R light. If the plant recognizes that light has begun to strike, the plant may not be irradiated with B light. If a sufficient amount of light can be secured as a whole, the amount of B light may be reduced. In this case, the light emitted from the light emitting device 20 does not turn white. The light emitted from the light emitting device 20 becomes sepia or orange.

  A control example when considering only the circadian rhythm of the vegetables stored in the vegetable room 6 is as follows. For example, when the light emitting device 20 is turned on, the control device 15 counts an elapsed time from when the lighting is started. The control device 15 turns off the light emitting device 20 when a certain time has elapsed since the start of lighting. When the light emitting device 20 is turned off, the control device 15 counts an elapsed time since the light emitting device 20 is turned off. The control device 15 turns on the light emitting device 20 again when the turn-off time of the light emitting device 20 is the same as the time when the light emitting device 20 was turned on. The control device 15 repeats the above control.

  When photographing the vegetable compartment 6 with the camera 24, the control device 15 adjusts the light emitted from the light emitting device 20 for photographing. Hereinafter, with reference to FIGS. 3 and 4 as well, a control example in the case where photographing by the camera 24 is also considered will be described in detail. FIG. 3 is a flowchart showing the operation of the refrigerator 1 according to Embodiment 1 of the present invention. FIG. 4 is a diagram showing a timing chart when the refrigerator 1 performs the operation shown in FIG.

  When the power of the refrigerator 1 is turned on (S1), the control device 15 starts an operation for cooling each room. Next, the control device 15 determines whether a start condition is satisfied (S2). The start condition is a condition for starting control in accordance with the circadian rhythm of vegetables. For example, when the user performs a specific operation on the input unit 13 of the operation panel 12, the start condition is satisfied. Other conditions may be adopted as the start condition. When the start condition is established, the control device 15 starts control in accordance with the circadian rhythm of the vegetables.

In the control device 15, for example, a control that alternately repeats a day mode and a night mode is registered in advance as control in accordance with the circadian rhythm of vegetables. In the daytime mode, the value of the current flowing through the LED ₂₂ is controlled to be A22. Thus, between the time _{t 0} to time _{t 4,} G light emitted from the LED 22. Time t ₀ is the time at which the daytime mode is initiated. Time t ₄ is the time at which the day mode to the end. Note that times t ₃ , t _4, and t ₇ shown in FIG. 4 are times determined by determining the time t ₀ . Further, in the daytime mode, the value of the current flowing through the LED23 is controlled to be _{A 32.} Thus, between the time _{t 0} to time _{t 4,} R light emitted from the LED 23.

For LED 21, until the time _{t 3} from the start of the day mode, the current value is controlled so that the _{A 11.} Thus, between the time _{t 0} to time _{t 3,} B light emitted from the LED 21. Time t ₃ is earlier than time t ₄ . Time t ₃ is set, for example, on the basis of the time until the open pores of the vegetables. Time _{t 3} is set to the time after 10 minutes for example, time _{t 0.} For LED 21, from time t ₃ to mode noon completed, it is controlled so that the current value becomes zero. Thus, between the time _{t 3} to time _{t 4,} LED 21 is turned off. In daytime mode, between the time _{t 0} to time _{t 3,} the light from each LED of the light emitting device 20 is irradiated.

  On the other hand, in the night mode, the value of the current flowing through the LED 21, LED 22, and LED 23 is controlled to be zero. That is, in the night mode, all of the LED 21, LED 22, and LED 23 are turned off.

  When the start condition is satisfied in S2, the control device 15 controls each LED of the light emitting device 20 in accordance with the circadian rhythm of vegetables. Specifically, the control device 15 starts LED lighting control in the daytime mode (S3). When the control in the daytime mode is started, the B light is irradiated together with the G light and the R light on the vegetables stored in the vegetable room. Thereby, the pores of the vegetable are opened, and carbon dioxide necessary for biosynthesis is taken into the vegetable.

When starting the lighting control in the daytime mode, the control device 15 counts the elapsed time from the start of the daytime mode control (S4). For example, the control device 15 calculates an elapsed time from the start of the control in the daytime mode based on the following equation.
time_A = time_A + dt (1)
here,
time_A: Integrated lighting time of the light emitting device 20 [sec]
dt: Time width [sec]
It is. The time_A calculated by Equation 1 corresponds to the elapsed time since the start of the daytime mode control.

Moreover, if the lighting control by daytime mode is started, the control apparatus 15 will determine whether there exists a request | requirement which acquires the image of the vegetable compartment 6 (S5). For example, the control device 15 determines that there is the above request when the vegetable room 6 is closed after the door 11 is opened. The control device 15 may determine that there is the request when a signal for confirming the state in the warehouse is received from an external device. The condition for the control device 15 to determine that there is the request is not limited to the above example. In this embodiment, an example in which the door 11 is closed at time t ₁ after the door 11 is opened. Controller 15 determines that there is a request to obtain an image of the vegetable compartment 6 at time t _1.

  If it determines with the control apparatus 15 having the request | requirement which acquires the image of the vegetable compartment 6 by S5, the control according to the circadian rhythm of vegetables will be once interrupted, and the control by imaging | photography mode will be started (S6). The lighting state of the light emitting device 20 when the control in the daytime mode is being performed cannot be said to be a state suitable for photographing the vegetable compartment 6 with the camera 24. If it determines with the control apparatus 15 having the request | requirement which acquires the image of the vegetable compartment 6 in S5, it will control so that the lighting state of the light-emitting device 20 will be in the state suitable for imaging | photography with the camera 24. FIG.

In shooting mode, the value of the current flowing through the LED22 is controlled to be _{A 21.} Current _{A 21} is a current _{A 22} smaller value. When shifting from the daytime mode to the shooting mode, the value of the current flowing through the LED 22 becomes smaller. That is, the G light emitted from the LED 22 is weakened. Similarly, in the photographing mode, the value of the current flowing through the LED23 is controlled to be _{A 31.} The current value A ₃₁ is smaller than the current value A ₃₂ . When shifting from the daytime mode to the shooting mode, the value of the current flowing through the LED 23 becomes smaller. That is, the R light emitted from the LED 23 becomes weak.

In shooting mode, the value of the current flowing through the LED21 is controlled to be _{A 12.} Figure 4 shows an example of photographing by the camera 24 is performed during the period from the time t ₀ to time t _3. Between the time _{t 0} to time _{t 1,} the value of the current flowing through the LED21 is _{A 11.} Current _{A 12} is a current _{A 11} greater than. Therefore, when the transition from daytime mode to the photographing mode between the time t ₀ to time t _3, the value of the current flowing through the LED21 increases. That is, the B light emitted from the LED 21 becomes strong. When photographing the vegetable compartment 6 with the camera 24, the control device 15 controls each LED of the light emitting device 20 so that white light is irradiated onto the vegetable compartment 6.

In the control in the daytime mode, it is preferable that the G light and R light irradiated on the vegetable compartment 6 are stronger. For this reason, in the example shown in the present embodiment, the current value is adjusted so that the G light and the R light are weakened when shooting by the camera 24 is performed. As described above, the amount of B light is preferably 1/5 to 1/10 of the amount of G light and the amount of R light. For this reason, in the example shown in the present embodiment, when shooting is performed with the camera 24 while the B light is irradiated, the current value is adjusted so that the B light becomes stronger. In the daytime mode, between the time _{t 3} to time _{t 4,} B light from LED21 is not illuminated. When performing photographing by the camera 24 at this time, the value of the current flowing through the LED21 is raised from 0 to _{A 12.}

  The control device 15 adjusts the current value flowing through each LED of the light emitting device 20 to a value for photographing, and then photographs the vegetable compartment 6 with the camera 24. Information on the image of the vegetable compartment 6 taken by the camera 24 is input to the control device 15. The control device 15 may display an image of the vegetable room 6 taken by the camera 24 on a display provided as the notification unit 14. The control device 15 may transfer information on the image of the vegetable room 6 taken by the camera 24 to an external device. The control device 15 may store information on the image of the vegetable room 6 taken by the camera 24 so that the user can check the image later. When the photographing by the camera 24 is finished, the control device 15 finishes the control in the photographing mode and resumes the control in accordance with the circadian rhythm of the vegetables.

Further, when the lighting control in the daytime mode is started, the control device 15 determines whether or not an elapsed time after the start of the daytime mode control has exceeded a preset second reference time (S7). For example, the control device 15 performs the determination in S7 based on whether or not the following expression is satisfied.
time_A> time_A_Max (2)
here,
time_A_Max: lighting upper limit time [sec] of the light emitting device 20
It is. time_A_Max corresponds to the second reference time.

  The control device 15 performs a series of processes from S3 to S6 until it is determined that the elapsed time from the start of the control in the daytime mode has exceeded the second reference time. When determining that the elapsed time from the start of the daytime mode control exceeds the second reference time, the control device 15 ends the daytime mode control and starts the night mode control (S8).

In the night mode, all of the LEDs 21, 22 and 23 are turned off. That is, the control device 15 keeps the value of the current flowing through the LED 21 at 0 when shifting from the day mode to the night mode. Similarly, the control device 15 changes the value of the current flowing through the LED ₂₂ from A ₂₂ to 0. The control device 15 changes the value of the current flowing through the LED ₂₃ from 0 to ₃₂ .

When the control in the night mode is started, the control device 15 counts the elapsed time since the start in the night mode (S9). For example, the control device 15 calculates an elapsed time after the control in the night mode is started based on the following equation.
time_B = time_B + dt (3)
here,
time_B: accumulated turn-off time of the light emitting device 20 [sec]
dt: Time width [sec]
It is. The time_B calculated by Expression 3 corresponds to the elapsed time since the start of the night mode control.

  Moreover, if the control apparatus 15 starts control by night mode, it will determine whether there exists a request | requirement which acquires the image of the vegetable compartment 6 (S10). If it determines with the control apparatus 15 having the request | requirement which acquires the image of the vegetable compartment 6 by S10, the control according to the circadian rhythm of vegetables will be once interrupted, and the control by imaging | photography mode will be started (S11).

In the night mode, all of the LEDs 21, 22 and 23 are turned off. If it determines with the control apparatus 15 having the request | requirement which acquires the image of the vegetable compartment 6 by S10, it will adjust the electric current value of each LED of the light-emitting device 20 to the value for imaging | photography. That is, the control unit 15, the value of the current flowing through the LED21 is controlled so as to be _{A 12.} Controller 15, the value of the current flowing through the LED22 is controlled to be _{A 21.} Controller 15, the value of the current flowing through the LED23 is controlled to be _{A 31.} Thereby, white light is irradiated from the light-emitting device 20 to the vegetable compartment 6.

  The control device 15 adjusts the current value flowing through each LED of the light emitting device 20 to a value for photographing, and then photographs the vegetable compartment 6 with the camera 24. When the photographing by the camera 24 is finished, the control device 15 finishes the control in the photographing mode and resumes the control in accordance with the circadian rhythm of the vegetables.

  In addition, when control by imaging | photography mode is started, B light will be irradiated to the vegetable of the vegetable compartment 6. FIG. As described above, the B light is a light that gives a signal to the plant that the light has begun to strike. When B light is irradiated to the vegetables in the vegetable room 6 for a long time, the circadian rhythm of the vegetables may be mad. For this reason, when the night mode is temporarily interrupted and photographing by the camera 24 is performed, the time during which the vegetables are irradiated with the B light is set to be equal to or shorter than the third reference time. The third reference time is set, for example, based on the time until the vegetable pores are opened. The third reference time is set to 10 minutes, for example.

Further, when the control in the night mode is started, the control device 15 determines whether or not the elapsed time since the start of the control in the night mode has exceeded a preset fourth reference time (S12). For example, the control device 15 performs the determination in S12 based on whether or not the following equation is satisfied.
time_B> time_B_Max (4)
here,
time_B_Max: upper limit time for turning off the light emitting device 20 [sec]
It is. time_B_Max corresponds to the fourth reference time.

  The control device 15 performs a series of processes from S8 to S11 until it is determined that the elapsed time from the start of the control in the night mode exceeds the fourth reference time. When determining that the elapsed time from the start of the control in the night mode exceeds the fourth reference time, the control device 15 ends the control in the night mode and restarts the control in the day mode.

  If it is the refrigerator 1 which has the said structure, the beautiful image of the vegetable compartment 6 can be acquired using LED for irradiating light to the vegetable put in the vegetable compartment 6. FIG. That is, the control device 15 controls each LED of the light emitting device 20 in accordance with the circadian rhythm of vegetables. For this reason, deterioration of vegetables can be delayed. Moreover, the control apparatus 15 controls each LED of the light-emitting device 20 so that white light is irradiated to the vegetable compartment 6 when imaging | photography with the camera 24 is performed. For this reason, a beautiful image of the vegetable room 6 can be acquired.

  The control content disclosed in the present embodiment is an example. The control content of the daytime mode may be changed according to the type of vegetables stored in the vegetable room 6. For example, vegetables such as fruit vegetables, root vegetables and purple cabbage have no pores or few pores. When only such vegetables are put in the vegetable compartment 6, it is not necessary to irradiate the vegetable compartment 6 with the B light except when shooting with the camera 24. When only thin leafy vegetables such as spinach and komatsuna are put in the vegetable room 6, the amount of R light having a high absorption rate on the leaf surface may be increased. In the case where only vegetables with heads such as cabbage and Chinese cabbage are put in the vegetable room 6, the amount of G light may be increased. Thereby, light can reach the inside of vegetables. By changing the control content of the daytime mode according to the vegetables put in the vegetable room 6, it is possible to further suppress the deterioration of the vegetables. In addition, power consumption can be suppressed unless unnecessary LEDs are turned on.

  In the present embodiment, the example in which the LED 21, LED 22, and LED 23 irradiate light of different wavelength bands (monochromatic light) has been described. The example of the light which LED21, LED22, and LED23 irradiate is not limited to the said example. In addition, when LED21 irradiates the light of the 1st wavelength band and LED22 irradiates the light of the 2nd wavelength band, even if a part of 1st wavelength band and a part of 2nd wavelength band are the same, 1st wavelength band If all of the second wavelength band and the second wavelength band are not the same, the first wavelength band and the second wavelength band are different wavelength bands.

  As described above, G light and R light promote activation of chlorophyll and synthesis of sugar, vitamin C, and the like by a biosynthetic function. B light also has the effect of increasing the amount of anthocyanin nutrients. Ultraviolet rays have the effect of increasing the amount of polyphenol. You may select LED to add according to the objective.

  Moreover, you may use LED provided with the blue LED chip and yellow fluorescent substance as LED21. In such a case, white light is emitted from the LED 21. When such LED21 is employ | adopted, when image | photographing the vegetable compartment 6 with the camera 24, the control apparatus 15 turns on only LED21 and makes other LED light-extinguish. Since only the LED 21 is lit when shooting with the camera 24, power consumption can be suppressed. Moreover, there is no shortage of B light applied to the vegetables.

  The control device 15 may have a function of correcting the image of the vegetable room 6 taken by the camera 24. For example, in the night mode, all the LEDs of the light emitting device 20 are turned off. For this reason, when shifting from the night mode to the shooting mode, shooting by the camera 24 is performed with the same contents as disclosed in the present embodiment. That is, white light is emitted from the light emitting device 20 and photographing by the camera 24 is performed.

  On the other hand, the light emitting device 20 is lit in the daytime mode. However, the light emitted from the light emitting device 20 is not white light. In such a case, the control device 15 performs photographing with the camera 24 without changing the lighting state of the light emitting device 20. The control device 15 corrects the color of the image of the vegetable compartment 6 photographed by the camera 24 using the correction function. That is, the control device 15 does not perform color correction by the correction function if each LED is controlled so that white light is irradiated onto the vegetable compartment 6 during photographing by the camera 24. When photographing by the camera 24 is performed in a state where the white light is not irradiated on the vegetable compartment 6, the control device 15 performs color correction by the correction function.

  When the control device 15 having a correction function is applied to the specific example shown in the present embodiment, color correction is not performed if the night mode is shifted to the shooting mode. Color correction is performed when the mode changes from the daytime mode to the shooting mode. With such a configuration, it is possible to prevent the G light and the R light from becoming weak at the time of shooting. Moreover, blue light with a short wavelength contributes to deterioration of the resin used for LED. By using the correction function, the current flowing through the LED 21 during shooting can be kept low. Thereby, the lifetime of LED21 can be extended.

  In the present embodiment, the example in which the light emitting device 20 includes three LEDs has been described. This is an example. The number of LEDs provided in the light emitting device 20 may be two. The light emitting device 20 may include four or more LEDs.

  The control device 15 includes a processing circuit including, for example, an input / output interface 25, a processor 26, and a memory 27 as hardware resources. The control device 15 implements each function described above by executing the program stored in the memory 27 by the processor 26. Some or all of the functions of the control device 15 may be realized by hardware.

  DESCRIPTION OF SYMBOLS 1 Refrigerator, 2 Main body, 3 Refrigeration room, 4 Switching room, 5 Freezing room, 6 Vegetable room, 7 Chilled room, 8-11 Door, 12 Operation panel, 13 Input part, 14 Notification part, 15 Control apparatus, 16 Opening / closing sensor , 17 compressor, 18 cooler, 19 blower, 20 light emitting device, 21-23 LED, 24 camera, 25 input / output interface, 26 processor, 27 memory

Claims (5)

A first LED that irradiates the vegetable compartment with light in the first wavelength band;
A second LED that irradiates the vegetable compartment with light of a second wavelength band different from the first wavelength band;
An image acquisition device for acquiring an image of the vegetable room;
A control device for controlling the first LED and the second LED in accordance with the circadian rhythm of vegetables;
With
When the control device acquires an image by the image acquisition device, the control device controls the first LED and the second LED so that the vegetable room is irradiated with white light ,
The first LED emits blue light,
In the case where the control device acquires an image by the image acquisition device when blue light is emitted from the first LED, the control device strengthens the blue light emitted from the first LED before acquiring the image . A third LED for irradiating the vegetable compartment with light of a third wavelength band different from the first wavelength band and the second wavelength band;
The controller is
Controlling the first LED, the second LED, and the third LED in accordance with the circadian rhythm of vegetables,
2. The refrigerator according to claim 1, wherein when the image is acquired by the image acquisition device, the first LED, the second LED, and the third LED are controlled such that white light is irradiated on the vegetable compartment.   The refrigerator according to claim 2, wherein each of the first LED, the second LED, and the third LED emits monochromatic light of a different color. A first LED that irradiates the vegetable compartment with light in the first wavelength band;
A second LED that irradiates the vegetable compartment with light of a second wavelength band different from the first wavelength band;
A third LED that irradiates the vegetable compartment with light of a third wavelength band different from the first wavelength band and the second wavelength band;
An image acquisition device for acquiring an image of the vegetable room;
A control device for controlling said first 1LED and the second 2LED and the second 3LED to suit the circadian rhythm of vegetables,
With
Wherein the control device, when acquiring an image by the image acquisition apparatus, white light is controlled with the first 3LED and the second 1LED and the second 2LED to be irradiated to the vegetable compartment,
The first LED emits blue light,
The second LED emits green light,
The third LED emits red light,
When acquiring an image by the image acquisition device when light is irradiated from all of the first LED, the second LED, and the third LED, the control device is irradiated from the first LED before acquiring the image. A refrigerator that strengthens blue light, weakens green light emitted from the second LED, and weakens red light emitted from the third LED . A first LED that irradiates the vegetable compartment with light in the first wavelength band;
A second LED that irradiates the vegetable compartment with light of a second wavelength band different from the first wavelength band;
An image acquisition device for acquiring an image of the vegetable room;
Correction means for correcting the image acquired by the image acquisition device;
Control means for controlling the first LED and the second LED in accordance with the circadian rhythm of vegetables;
Equipped with a,
When the first LED and the second LED are controlled by the control unit so that the vegetable room is irradiated with white light when an image is acquired by the image acquisition device, the correction unit acquires the image. A refrigerator that does not correct images acquired by the device .

Images