CN113915940A - Refrigerator and control method thereof - Google Patents

Refrigerator and control method thereof Download PDF

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Publication number
CN113915940A
CN113915940A CN202110402333.7A CN202110402333A CN113915940A CN 113915940 A CN113915940 A CN 113915940A CN 202110402333 A CN202110402333 A CN 202110402333A CN 113915940 A CN113915940 A CN 113915940A
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China
Prior art keywords
antenna
compartment
label
identification
target compartment
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CN202110402333.7A
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Chinese (zh)
Inventor
陈红欣
赵兴
鲍雨锋
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Hisense Shandong Refrigerator Co Ltd
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Hisense Shandong Refrigerator Co Ltd
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Application filed by Hisense Shandong Refrigerator Co Ltd filed Critical Hisense Shandong Refrigerator Co Ltd
Priority to CN202110402333.7A priority Critical patent/CN113915940A/en
Publication of CN113915940A publication Critical patent/CN113915940A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2500/00—Problems to be solved
    • F25D2500/06—Stock management
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention relates to a refrigerator and a control method thereof, wherein the refrigerator determines target compartments to be stocked when detecting that a label stock starting condition is met, and executes the following operations for each target compartment: if the target compartment is the compartment closest to the antenna, controlling the antenna to perform label identification at a first identification distance corresponding to a preset target compartment to obtain a label set in the target compartment; and if the target compartment is not the compartment closest to the antenna, controlling the antenna to perform label identification according to a first identification distance and a second identification distance corresponding to the preset target compartment to obtain a first label set and a second label set, and calculating a difference set between the first label set and the second label set to serve as the label set in the target compartment. The invention can simply and efficiently realize the label inventory in the room, and has simple structure and low realization cost.

Description

Refrigerator and control method thereof
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator and a control method thereof.
Background
With the development of economy and science and technology, the popularization rate of the refrigerator is high, but a user often forgets which compartment of the refrigerator the food is stored in when using the refrigerator, does not know what food is stored in a certain compartment of the refrigerator, and is time-consuming and labor-consuming when the refrigerator needs to be opened and turned one by one, and the power consumption is increased due to the fact that cold air of the refrigerator leaks. In order to solve the above problems of the refrigerator using process, at present, the RFID antennas are arranged in each compartment, so that the food materials stored in each compartment are automatically identified and managed through the RFID antennas, but as each antenna needs to be connected to a port of the controller through a radio frequency line, the more compartments in the refrigerator, the more the number of the antennas, the number of the radio frequency lines and the number of the reader-writer ports are increased, which not only increases the product cost, but also causes the wiring process of the refrigerator to be complicated.
Disclosure of Invention
The embodiment of the invention provides a refrigerator and a control method thereof, which can simply and efficiently realize label inventory in a compartment through a single antenna, and have the advantages of simple structure and low realization cost.
An embodiment of the present invention provides a refrigerator including:
a box body including a case composed of a plurality of box plates and at least two compartments provided inside the case;
the antenna is arranged on a box plate which is vertical to the arrangement direction of the chambers in the box body, and the radiation direction of the antenna faces the interior of the box body;
a controller configured to:
when detecting that the label inventory starting condition is met, determining a target compartment to be inventory;
for each of the target compartments, performing the following operations:
if the target compartment is the compartment closest to the antenna, controlling the antenna to perform label identification at a preset first identification distance corresponding to the target compartment to obtain a label set in the target compartment;
if the target compartment is not the compartment closest to the antenna, controlling the antenna to perform label identification respectively according to a first identification distance and a second identification distance corresponding to the preset target compartment to obtain a first label set and a second label set, and calculating a difference set between the first label set and the second label set to serve as the label set in the target compartment;
the first identification distance is larger than or equal to the distance between one surface, far away from the antenna, of the target compartment and the antenna, and the second identification distance is smaller than or equal to the distance between one surface, close to the antenna, of the target compartment and the antenna.
As an improvement of the scheme, each compartment is provided with a door body for opening and closing the compartment; the refrigerator also comprises a door opening and closing detection device for detecting the opening and closing conditions of the door body of each compartment;
the label inventory starting condition is specifically as follows:
the preset label inventory period is reached;
the controller is configured to determine a target compartment to inventory by specifically:
acquiring the opening and closing condition of the door body of each compartment;
and taking the compartment opened by the door body after the last label inventory period is finished and before the label inventory period begins as a target compartment.
As an improvement of the above, the first identification distance is smaller than a closest distance between a first adjacent compartment and the antenna, and the first adjacent compartment is a compartment adjacent to a side of the target compartment away from the antenna; the second identification distance is greater than or equal to a furthest distance between a second adjacent compartment and the antenna, the second adjacent compartment being a compartment adjacent to a face of the target compartment that is proximate to the antenna.
As an improvement of the above scheme, the controlling the antenna to perform tag identification at a preset first identification distance corresponding to the target compartment to obtain a tag set in the target compartment specifically includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a label set in the target compartment; wherein the first preset power is calculated according to the first identification distance.
As an improvement of the above scheme, the controlling the antenna to perform tag identification with a first identification distance and a second identification distance corresponding to the preset target compartment, respectively, so as to obtain a first tag set and a second tag set specifically includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a first label set; wherein the first preset power is calculated according to the first identification distance;
adjusting the transmitting power of the antenna to a preset second preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a second label set; wherein the second preset power is calculated according to the second identification distance.
Correspondingly, another embodiment of the invention provides a control method of a refrigerator, the refrigerator comprises a refrigerator body and an antenna, the refrigerator body comprises a shell consisting of a plurality of refrigerator boards and at least two compartments arranged on the inner side of the shell, the antenna is arranged on the refrigerator boards vertical to the arrangement direction of the compartments in the refrigerator body, and the radiation direction of the antenna faces to the inside of the refrigerator body; the method comprises the following steps:
when detecting that the label inventory starting condition is met, determining a target compartment to be inventory;
for each of the target compartments, performing the following operations:
if the target compartment is the compartment closest to the antenna, controlling the antenna to perform label identification at a preset first identification distance corresponding to the target compartment to obtain a label set in the target compartment;
if the target compartment is not the compartment closest to the antenna, controlling the antenna to perform label identification respectively according to a first identification distance and a second identification distance corresponding to the preset target compartment to obtain a first label set and a second label set, and calculating a difference set between the first label set and the second label set to serve as the label set in the target compartment;
the first identification distance is larger than or equal to the distance between one surface, far away from the antenna, of the target compartment and the antenna, and the second identification distance is smaller than or equal to the distance between one surface, close to the antenna, of the target compartment and the antenna.
As an improvement of the above scheme, the label inventory starting condition is specifically:
the preset label inventory period is reached;
the controller is configured to determine a target compartment to inventory by specifically:
acquiring the opening and closing condition of the door body of each compartment;
and taking the compartment opened by the door body after the last label inventory period is finished and before the label inventory period begins as a target compartment.
As an improvement of the above, the first identification distance is smaller than a closest distance between a first adjacent compartment and the antenna, and the first adjacent compartment is a compartment adjacent to a side of the target compartment away from the antenna; the second identification distance is greater than or equal to a furthest distance between a second adjacent compartment and the antenna, the second adjacent compartment being a compartment adjacent to a face of the target compartment that is proximate to the antenna.
As an improvement of the above scheme, the controlling the antenna to perform tag identification at a preset first identification distance corresponding to the target compartment to obtain a tag set in the target compartment specifically includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a label set in the target compartment; wherein the first preset power is calculated according to the first identification distance.
As an improvement of the above scheme, the controlling the antenna to perform tag identification with a first identification distance and a second identification distance corresponding to the preset target compartment, respectively, so as to obtain a first tag set and a second tag set specifically includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a first label set; wherein the first preset power is calculated according to the first identification distance;
adjusting the transmitting power of the antenna to a preset second preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a second label set; wherein the second preset power is calculated according to the second identification distance.
Compared with the prior art, the refrigerator and the control method thereof provided by the embodiment have the following beneficial effects:
when the fact that the starting condition of the label inventory is met is detected, the target compartments to be inventory are determined, and for each target compartment, the distance between the target compartment and the antenna on the box board which is arranged in the refrigerator body of the refrigerator and perpendicular to the arrangement direction of the compartments and the radiation direction of which faces the inside of the refrigerator body is correspondingly controlled to carry out label identification at the corresponding identification distance so as to obtain a label set in the target compartment.
Drawings
Fig. 1 is a flowchart illustrating an operation of a controller in a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a detailed operation flow of a controller in a refrigerator according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a refrigerator according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flowchart illustrating an operation of a controller in a refrigerator according to an embodiment of the present invention is shown, and referring to fig. 3 and 4, a schematic structural diagram illustrating a refrigerator according to an embodiment of the present invention is shown.
An embodiment of the present invention provides a refrigerator, including:
a box body including a case composed of a plurality of box plates and at least two compartments provided inside the case;
the antenna is arranged on a box plate which is vertical to the arrangement direction of the chambers in the box body, and the radiation direction of the antenna faces the interior of the box body;
a controller configured to:
s11, when detecting that the label inventory starting condition is satisfied, determining a target compartment to be inventory;
s12, for each of the target compartments, performing the following operations:
if the target compartment is the compartment closest to the antenna, controlling the antenna to perform label identification at a preset first identification distance corresponding to the target compartment to obtain a label set in the target compartment;
if the target compartment is not the compartment closest to the antenna, controlling the antenna to perform label identification respectively according to a first identification distance and a second identification distance corresponding to the preset target compartment to obtain a first label set and a second label set, and calculating a difference set between the first label set and the second label set to serve as the label set in the target compartment;
the first identification distance is larger than or equal to the distance between one surface, far away from the antenna, of the target compartment and the antenna, and the second identification distance is smaller than or equal to the distance between one surface, close to the antenna, of the target compartment and the antenna.
It should be understood that the tag in this embodiment refers to an RFID tag attached to food stored in the refrigerator compartment, such as an Ultra High Frequency (UHF) tag, an NFC tag, and the like.
For example, the tag inventory starting condition may be set according to an actual requirement, for example, set to receive an inventory instruction of a user for some compartments, or set to reach a preset time at the current time, and the like, which is not limited herein. It can be understood that, when the tag inventory starting condition is that an inventory instruction for some compartments is received by a user, the target compartment to be inventory is the compartment specified in the inventory instruction, and of course, the target compartment to be inventory may also be preset, so that when the tag inventory starting condition is satisfied, the tag inventory is automatically performed on the preset target compartment to be inventory.
In a specific embodiment, after the controller performs the above operation for each target compartment, the controller may further manage the food in the box based on the tag set in each target compartment, and a user attaches an RFID tag to the food in a process of using the refrigerator, that is, the food management function may be implemented by the refrigerator.
It should be noted that, the antenna in this embodiment is an antenna capable of transmitting Radio Frequency (RF) signals of various frequency bands, and the characteristic of the radiation signal is directional circular polarization, when the compartments inside the refrigerator are arranged in the vertical direction, the antenna is mounted on the bottom or top box board of the refrigerator, and the direction of the transmitted signal is toward the compartments inside the refrigerator, and when the compartments inside the refrigerator are arranged in the horizontal direction, the antenna is mounted on the right or left box board of the refrigerator, and the direction of the transmitted signal is toward the compartments inside the refrigerator. Wherein the maximum transmitting power of the antennaP, capable of ensuring that its signal covers the side of the compartment furthest from the antenna, away from said antenna, and the transmission power value P of the antennaiCan be dynamically adjusted, and Pi<Pi+1P is less than or equal to P, when the antenna is at the transmitting power PiWhen in operation, the signal of the wireless communication device can be ensured to cover the side of the compartment i away from the antenna, and the stored label set is stored as Ui。
It will be appreciated that, since the first identification distance is greater than or equal to the distance between the face of the target compartment remote from the antenna and the antenna, the first identification distance, and therefore, when the antenna carries out label identification at a first identification distance corresponding to the preset target compartment, the antenna can ensure that the signal of the antenna covers the surface of the target compartment far away from the antenna, since the second identification distance is smaller than or equal to the distance between the side of the target compartment close to the antenna and the antenna, the antenna is, therefore, when the antenna carries out label identification at a preset second identification distance corresponding to the target compartment, the antenna can ensure that the signal of the antenna does not cover the surface, close to the antenna, of the target compartment, therefore, by calculating a difference set between the first labelset and the second labelset, a labelset within the target compartment can be obtained.
According to the refrigerator provided by the embodiment, when the condition that the starting condition of the label inventory is met is detected, the target compartments to be inventory are determined, and for each target compartment, the antenna is correspondingly controlled to perform label identification at the corresponding identification distance according to the distance between the target compartment and the antenna which is arranged on the box board and is vertical to the arrangement direction of the compartments in the box body of the refrigerator, and the radiation direction of the antenna faces towards the inside of the box body, so that the label set in the target compartment is obtained, the label inventory in the compartments can be simply and efficiently realized through a single antenna, the number of the antennas and the radio frequency lines are few, the structure and the manufacturing process of the refrigerator are simple, and the realization cost is low.
As an optional embodiment, each compartment is provided with a door body for opening and closing the compartment; the refrigerator also comprises a door opening and closing detection device for detecting the opening and closing conditions of the door body of each compartment;
the label inventory starting condition is specifically as follows:
the preset label inventory period is reached;
the controller is configured to determine a target compartment to inventory by specifically:
acquiring the opening and closing condition of the door body of each compartment;
and taking the compartment opened by the door body after the last label inventory period is finished and before the label inventory period begins as a target compartment.
As shown in fig. 3 and 4, the door switch detection device includes door switches corresponding to the door bodies of each compartment one by one, and the door switches are used for detecting the opening and closing conditions of the door bodies.
It can be understood that the opening and closing conditions of the door body of each compartment at least include the number of times that the door body is opened and closed after the last label inventory cycle is finished and before the label inventory cycle is started.
It should be noted that, because the user does not store the food with the tag in all the compartments at every time when using the refrigerator, if the tag is stored in all the compartments at every time, the time consumption is long, which leads to the deterioration of the user experience, and the power consumption is increased.
As an optional embodiment, on the basis that the first identification distance is greater than or equal to the distance between the antenna and the side of the target compartment away from the antenna, the first identification distance is smaller than the closest distance between a first adjacent compartment and the antenna, and the first adjacent compartment is a compartment adjacent to the side of the target compartment away from the antenna, so that it can be effectively ensured that when the antenna performs tag identification at the first identification distance, a signal of the antenna only covers the side of the target compartment away from the antenna, and does not cover the first adjacent compartment, thereby ensuring that when the target compartment performs tag inventory, tags in other compartments do not cause influence, and improving the accuracy of tag inventory.
And on the basis that the second identification distance is smaller than or equal to the distance between the antenna and the surface of the target compartment close to the antenna, the second identification distance is larger than or equal to the farthest distance between a second adjacent compartment and the antenna, and the second adjacent compartment is the compartment adjacent to the surface of the target compartment close to the antenna, so that the second label set obtained can be effectively ensured to completely contain the labels in the second adjacent compartment, and therefore when the difference set between the first label set and the second label set is calculated, the labels in other compartments cannot be influenced when the labels are stored in the target compartment, and the accuracy of label storage is improved.
As one optional embodiment, the controlling the antenna to perform tag identification at a preset first identification distance corresponding to the target compartment to obtain a tag set in the target compartment specifically includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a label set in the target compartment; wherein the first preset power is calculated according to the first identification distance.
As one optional embodiment, the controlling the antenna to perform tag identification with a first identification distance and a second identification distance corresponding to the preset target compartment, respectively, so as to obtain a first tag set and a second tag set specifically includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a first label set; wherein the first preset power is calculated according to the first identification distance;
adjusting the transmitting power of the antenna to a preset second preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a second label set; wherein the second preset power is calculated according to the second identification distance.
It should be noted that, reference may be made to the prior art for calculating the transmission power of the antenna according to the identification distance, which is not described herein again.
With reference to fig. 2, 3 and 4, another embodiment of the present invention provides a specific work flow of the controller in the refrigerator provided by the above embodiment, which is as follows:
1) the refrigerator is initialized after being electrified for the first time: the number n of compartments is more than or equal to 2, j, k represents the serial number of the compartments, j, k belongs to [1, n ] and j is less than k; m represents the number of compartments in which the door is open and m is 0;
2) continuously monitoring the door switch S of each compartmentiWhen a door switch is on, i.e. Si＝1(i∈[1,n]) When the number of m is increased by 1 and the m is stored in a variable m, namely m is m +1, and if the door switch is repeatedly opened, the counting is not repeated;
3) when all the opened doors are closed, any one S is in the processi≠1(i∈[1,n]) Judging the magnitude of the m value;
4) when m is equal to 1, the switch is Sj，
If j is 1, the antenna is powered by PjTransmitting a signal to inventory tags, the set of tags stored in time chamber j being Uj，Then, making m equal to 0, and returning to the step 2;
if j is not equal to 1, the power P is applied to the antenna in sequencej-1、PjTransmitting a signal to inventory tags, the set of tags stored in time chamber j being Uj-Uj-1Then, making m equal to 0, and returning to the step 2;
5) when m is 2, the switch is SjAnd Sk，
If j is 1, the antenna is given power P successivelyj、Pk-1、PkTransmitting a signal to inventory tags, the set of tags stored in time chamber j being UjThe labels stored in the compartment k are integrated into Uk–Uk-1Then, when m is 0, the procedure is returned to2；
If j is not equal to 1, the power P is applied to the antenna in sequencej-1、Pj、Pk-1、PkTransmitting a signal to inventory tags, the set of tags stored in time chamber j being Uj-Uj-1The labels stored in the compartment k are integrated into Uk–Uk-1Then, making m equal to 0, and returning to the step 2;
6) when 2 is in<When m is less than or equal to n, the switch is S1、S2、…、SmThe antenna successively receives power P1、P2、…、Pm-1、PmTransmitting signals to inventory tags, and respectively recording the read tag sets as U1、U2、…、Um-1、UmThen, the label sets stored in the m compartments are respectively as follows: the compartment 1 is U1The compartment 2 is U2-U1… …, m being Um–Um-1。
Referring to fig. 5, fig. 5 is a schematic flowchart of a control method of a refrigerator according to an embodiment of the present invention.
The embodiment of the invention provides a control method of a refrigerator, the refrigerator applied by the control method comprises a refrigerator body and an antenna, wherein the refrigerator body comprises a shell consisting of a plurality of refrigerator boards and at least two compartments arranged on the inner side of the shell, the antenna is arranged on the refrigerator boards vertical to the arrangement direction of the compartments in the refrigerator body, and the radiation direction of the antenna faces to the inside of the refrigerator body; the method comprises the following steps:
s21, when detecting that the label inventory starting condition is satisfied, determining a target compartment to be inventory;
s22, for each of the target compartments, performing the following operations:
if the target compartment is the compartment closest to the antenna, controlling the antenna to perform label identification at a preset first identification distance corresponding to the target compartment to obtain a label set in the target compartment;
if the target compartment is not the compartment closest to the antenna, controlling the antenna to perform label identification respectively according to a first identification distance and a second identification distance corresponding to the preset target compartment to obtain a first label set and a second label set, and calculating a difference set between the first label set and the second label set to serve as the label set in the target compartment;
the first identification distance is larger than or equal to the distance between one surface, far away from the antenna, of the target compartment and the antenna, and the second identification distance is smaller than or equal to the distance between one surface, close to the antenna, of the target compartment and the antenna.
It should be understood that the tag in this embodiment refers to an RFID tag attached to food stored in the refrigerator compartment, such as an Ultra High Frequency (UHF) tag, an NFC tag, and the like.
For example, the tag inventory starting condition may be set according to an actual requirement, for example, set to receive an inventory instruction of a user for some compartments, or set to reach a preset time at the current time, and the like, which is not limited herein. It can be understood that, when the tag inventory starting condition is that an inventory instruction for some compartments is received by a user, the target compartment to be inventory is the compartment specified in the inventory instruction, and of course, the target compartment to be inventory may also be preset, so that when the tag inventory starting condition is satisfied, the tag inventory is automatically performed on the preset target compartment to be inventory.
In a specific embodiment, after the above operation is performed on each target compartment, the method may further manage the food in the box based on the tag set in each target compartment, and when a user uses the refrigerator, the user attaches the RFID tag to the food, that is, the food management function may be implemented by the refrigerator.
It should be noted that, the antenna in this embodiment is an antenna capable of transmitting Radio Frequency (RF) signals of various frequency bands, the characteristic of the radiation signal is directional circular polarization, when the compartments in the refrigerator are arranged in the vertical direction, the antenna is mounted on the bottom box board or the top box board of the refrigerator, the direction of the transmitted signal is toward the compartments in the refrigerator, and when the compartments in the refrigerator are arranged in the vertical direction, the antenna is mounted on the bottom box board or the top box board of the refrigerator, and when the signals are transmitted toward the compartments in the refrigeratorWhen the compartments are arranged in the horizontal direction, the antenna is mounted on the right side box board or the left side box board of the refrigerator, and the transmitted signal direction faces towards the inner compartment of the refrigerator. Wherein, the maximum transmitting power P of the antenna can ensure that the signal covers the side of the chamber which is farthest from the antenna and is far away from the antenna, and the transmitting power value P of the antennaiCan be dynamically adjusted, and Pi<Pi+1P is less than or equal to P, when the antenna is at the transmitting power PiWhen in operation, the signal of the wireless communication device can be ensured to cover the side of the compartment i away from the antenna, and the stored label set is stored as Ui。
It will be appreciated that, since the first identification distance is greater than or equal to the distance between the face of the target compartment remote from the antenna and the antenna, the first identification distance, and therefore, when the antenna carries out label identification at a first identification distance corresponding to the preset target compartment, the antenna can ensure that the signal of the antenna covers the surface of the target compartment far away from the antenna, since the second identification distance is smaller than or equal to the distance between the side of the target compartment close to the antenna and the antenna, the antenna is, therefore, when the antenna carries out label identification at a preset second identification distance corresponding to the target compartment, the antenna can ensure that the signal of the antenna does not cover the surface, close to the antenna, of the target compartment, therefore, by calculating a difference set between the first labelset and the second labelset, a labelset within the target compartment can be obtained.
According to the control method of the refrigerator provided by the embodiment, when the fact that the starting condition of the label inventory is met is detected, the target compartments to be inventory are determined, and for each target compartment, the antenna is correspondingly controlled to perform label identification at the corresponding identification distance according to the distance between the target compartment and the antenna which is arranged on the box board, perpendicular to the arrangement direction of the compartments in the box body of the refrigerator, and the radiation direction of the antenna faces towards the interior of the box body, so that the label set in the target compartment is obtained, therefore, the label inventory in the compartments can be simply and efficiently realized through a single antenna, the number of the antennas and the number of radio frequency lines are small, the structure and the manufacturing process of the refrigerator are simple, and the realization cost is low.
As an optional embodiment, each compartment is provided with a door body for opening and closing the compartment; the refrigerator also comprises a door opening and closing detection device for detecting the opening and closing conditions of the door body of each compartment;
the label inventory starting condition is specifically as follows:
the preset label inventory period is reached;
the controller is configured to determine a target compartment to inventory by specifically:
acquiring the opening and closing condition of the door body of each compartment;
and taking the compartment opened by the door body after the last label inventory period is finished and before the label inventory period begins as a target compartment.
It can be understood that the opening and closing conditions of the door body of each compartment at least include the number of times that the door body is opened and closed after the last label inventory cycle is finished and before the label inventory cycle is started.
It should be noted that, because the user does not store the food with the tag in all the compartments at every time when using the refrigerator, if the tag is stored in all the compartments at every time, the time consumption is long, which leads to the deterioration of the user experience, and the power consumption is increased.
As an optional embodiment, on the basis that the first identification distance is greater than or equal to the distance between the antenna and the side of the target compartment away from the antenna, the first identification distance is smaller than the closest distance between a first adjacent compartment and the antenna, and the first adjacent compartment is a compartment adjacent to the side of the target compartment away from the antenna, so that it can be effectively ensured that when the antenna performs tag identification at the first identification distance, a signal of the antenna only covers the side of the target compartment away from the antenna, and does not cover the first adjacent compartment, thereby ensuring that when the target compartment performs tag inventory, tags in other compartments do not cause influence, and improving the accuracy of tag inventory.
And on the basis that the second identification distance is smaller than or equal to the distance between the antenna and the surface of the target compartment close to the antenna, the second identification distance is larger than or equal to the farthest distance between a second adjacent compartment and the antenna, and the second adjacent compartment is the compartment adjacent to the surface of the target compartment close to the antenna, so that the second label set obtained can be effectively ensured to completely contain the labels in the second adjacent compartment, and therefore when the difference set between the first label set and the second label set is calculated, the labels in other compartments cannot be influenced when the labels are stored in the target compartment, and the accuracy of label storage is improved.
As one optional embodiment, the controlling the antenna to perform tag identification at a preset first identification distance corresponding to the target compartment to obtain a tag set in the target compartment specifically includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a label set in the target compartment; wherein the first preset power is calculated according to the first identification distance.
It should be noted that, reference may be made to the prior art for calculating the transmission power of the antenna according to the identification distance, which is not described herein again.
As one optional embodiment, the controlling the antenna to perform tag identification with a first identification distance and a second identification distance corresponding to the preset target compartment, respectively, so as to obtain a first tag set and a second tag set specifically includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a first label set; wherein the first preset power is calculated according to the first identification distance;
adjusting the transmitting power of the antenna to a preset second preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a second label set; wherein the second preset power is calculated according to the second identification distance.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (10)

1. A refrigerator, characterized by comprising:
a box body including a case composed of a plurality of box plates and at least two compartments provided inside the case;
the antenna is arranged on a box plate which is vertical to the arrangement direction of the chambers in the box body, and the radiation direction of the antenna faces the interior of the box body;
a controller configured to:
when detecting that the label inventory starting condition is met, determining a target compartment to be inventory;
for each of the target compartments, performing the following operations:
if the target compartment is the compartment closest to the antenna, controlling the antenna to perform label identification at a preset first identification distance corresponding to the target compartment to obtain a label set in the target compartment;
if the target compartment is not the compartment closest to the antenna, controlling the antenna to perform label identification respectively according to a first identification distance and a second identification distance corresponding to the preset target compartment to obtain a first label set and a second label set, and calculating a difference set between the first label set and the second label set to serve as the label set in the target compartment;
the first identification distance is larger than or equal to the distance between one surface, far away from the antenna, of the target compartment and the antenna, and the second identification distance is smaller than or equal to the distance between one surface, close to the antenna, of the target compartment and the antenna.
2. The refrigerator according to claim 1, wherein each of the compartments is provided with a door body for opening and closing the compartment; the refrigerator also comprises a door opening and closing detection device for detecting the opening and closing conditions of the door body of each compartment;
the label inventory starting condition is specifically as follows:
the preset label inventory period is reached;
the controller is configured to determine a target compartment to inventory by specifically:
acquiring the opening and closing condition of the door body of each compartment;
and taking the compartment opened by the door body after the last label inventory period is finished and before the label inventory period begins as a target compartment.
3. The refrigerator of claim 1, wherein the first identification distance is less than a closest distance between a first adjacent compartment and the antenna, the first adjacent compartment being a compartment adjacent to a side of the target compartment remote from the antenna; the second identification distance is greater than or equal to a furthest distance between a second adjacent compartment and the antenna, the second adjacent compartment being a compartment adjacent to a face of the target compartment that is proximate to the antenna.
4. The refrigerator according to claim 1, wherein the controlling the antenna performs tag identification at a preset first identification distance corresponding to the target compartment to obtain a tag set in the target compartment includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a label set in the target compartment; wherein the first preset power is calculated according to the first identification distance.
5. The refrigerator according to claim 1, wherein the controlling the antenna to perform tag identification at a first identification distance and a second identification distance corresponding to the preset target compartment, respectively, so as to obtain a first tag set and a second tag set, specifically comprises:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a first label set; wherein the first preset power is calculated according to the first identification distance;
adjusting the transmitting power of the antenna to a preset second preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a second label set; wherein the second preset power is calculated according to the second identification distance.
6. The control method of the refrigerator is characterized in that the refrigerator comprises a refrigerator body and an antenna, the refrigerator body comprises a shell consisting of a plurality of refrigerator boards and at least two compartments arranged on the inner side of the shell, the antenna is arranged on the refrigerator boards perpendicular to the arrangement direction of the compartments in the refrigerator body, and the radiation direction of the antenna faces the interior of the refrigerator body; the method comprises the following steps:
when detecting that the label inventory starting condition is met, determining a target compartment to be inventory;
for each of the target compartments, performing the following operations:
if the target compartment is the compartment closest to the antenna, controlling the antenna to perform label identification at a preset first identification distance corresponding to the target compartment to obtain a label set in the target compartment;
if the target compartment is not the compartment closest to the antenna, controlling the antenna to perform label identification respectively according to a first identification distance and a second identification distance corresponding to the preset target compartment to obtain a first label set and a second label set, and calculating a difference set between the first label set and the second label set to serve as the label set in the target compartment;
the first identification distance is larger than or equal to the distance between one surface, far away from the antenna, of the target compartment and the antenna, and the second identification distance is smaller than or equal to the distance between one surface, close to the antenna, of the target compartment and the antenna.
7. The method for controlling a refrigerator according to claim 6, wherein the tag inventory start condition is specifically:
the preset label inventory period is reached;
the controller is configured to determine a target compartment to inventory by specifically:
acquiring the opening and closing condition of the door body of each compartment;
and taking the compartment opened by the door body after the last label inventory period is finished and before the label inventory period begins as a target compartment.
8. The method of controlling a refrigerator according to claim 6, wherein the first identification distance is smaller than a closest distance between a first adjacent compartment and the antenna, the first adjacent compartment being a compartment adjacent to a side of the target compartment away from the antenna; the second identification distance is greater than or equal to a furthest distance between a second adjacent compartment and the antenna, the second adjacent compartment being a compartment adjacent to a face of the target compartment that is proximate to the antenna.
9. The method for controlling the refrigerator according to claim 6, wherein the controlling the antenna performs tag identification at a preset first identification distance corresponding to the target compartment to obtain a tag set in the target compartment includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a label set in the target compartment; wherein the first preset power is calculated according to the first identification distance.
10. The method for controlling a refrigerator according to claim 6, wherein the controlling the antenna performs tag identification at a first identification distance and a second identification distance corresponding to the preset target compartment to obtain a first tag set and a second tag set, specifically includes:
adjusting the transmitting power of the antenna to a preset first preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a first label set; wherein the first preset power is calculated according to the first identification distance;
adjusting the transmitting power of the antenna to a preset second preset power corresponding to the target compartment, and controlling the antenna to perform label identification to obtain a second label set; wherein the second preset power is calculated according to the second identification distance.
CN202110402333.7A 2021-04-14 2021-04-14 Refrigerator and control method thereof Pending CN113915940A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1801177A (en) * 2005-01-03 2006-07-12 三星电子株式会社 Refrigerator and method of controlling the same
CN102124288A (en) * 2008-08-20 2011-07-13 松下电器产业株式会社 Storage, storage system, method for controlling storage or storage system, and control program therefor
CN103116734A (en) * 2013-03-19 2013-05-22 天津工业大学 Anti-collision method of RFID (Radio Frequency Identification) system based on power control
CN104915618A (en) * 2015-07-03 2015-09-16 南京大学 Ultrahigh-frequency-RFID-technology-based book reservation method of library
CN111780478A (en) * 2020-07-01 2020-10-16 海信视像科技股份有限公司 Refrigerator and food material management method
CN112163437A (en) * 2020-09-11 2021-01-01 中国计量大学 Method for determining optimal starting sequence of multiple antennae of RFID

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1801177A (en) * 2005-01-03 2006-07-12 三星电子株式会社 Refrigerator and method of controlling the same
CN102124288A (en) * 2008-08-20 2011-07-13 松下电器产业株式会社 Storage, storage system, method for controlling storage or storage system, and control program therefor
CN103116734A (en) * 2013-03-19 2013-05-22 天津工业大学 Anti-collision method of RFID (Radio Frequency Identification) system based on power control
CN104915618A (en) * 2015-07-03 2015-09-16 南京大学 Ultrahigh-frequency-RFID-technology-based book reservation method of library
CN111780478A (en) * 2020-07-01 2020-10-16 海信视像科技股份有限公司 Refrigerator and food material management method
CN112163437A (en) * 2020-09-11 2021-01-01 中国计量大学 Method for determining optimal starting sequence of multiple antennae of RFID

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Application publication date: 20220111