CN114909863A

CN114909863A - Refrigerator, positioning method and computer readable storage medium

Info

Publication number: CN114909863A
Application number: CN202110172882.XA
Authority: CN
Inventors: 曲磊; 谢飞学; 赵启东; 李正义; 高语函; 孙菁
Original assignee: Hisense Group Holding Co Ltd
Current assignee: Hisense Group Holding Co Ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2022-08-16

Abstract

The invention discloses a refrigerator, a positioning method and a computer readable storage medium, relates to the technical field of RFID and aims to solve the problem of positioning a target object. The refrigerator provided by the embodiment of the invention comprises a machine shell, wherein the machine shell is provided with an opening; the door body is used for opening and closing the opening, a plurality of RFID antennas and a plurality of non-shielding partition plates are arranged in a cavity formed by matching the machine shell and the door body, and the cavity is divided into a plurality of cabins by the partition plates; each cabin corresponds to a different RFID antenna set, which includes RFID antennas that emit electromagnetic wave signals that can cover the cabin. Because the RFID antenna assembly comprises the RFID antennas capable of covering the cabins, the cabin where the target object is located is accurately determined according to the corresponding relation between each cabin and the RFID antenna assembly and the RFID antenna corresponding to the electromagnetic wave signal received by the RFID label corresponding to the target object, and the flexibility of determining the position of the target object is improved.

Description

Refrigerator, positioning method and computer readable storage medium

Technical Field

The invention relates to the technical field of RFID (radio frequency identification devices), in particular to a refrigerator, a positioning method and a computer-readable storage medium.

Background

With the development of economy and the improvement of the living standard of people, the refrigerator becomes one of the essential household appliances in the life of people.

Currently, in order to keep food fresh for a long time and prevent the food from deteriorating, a user stores the food in a refrigerator. Refrigerators generally include a refrigerating compartment, a warming compartment, and a freezing compartment, however, as the number of stored foods increases, or as the storage time increases, a user may not be able to determine the corresponding locations of the foods stored in the refrigerator. At present, when a user needs to take out food from a refrigerator, the refrigerator is directly opened manually, and the food which the user needs to take out is found. Therefore, the way of determining the position of the target object is currently not flexible enough.

Disclosure of Invention

The invention provides a refrigerator, a positioning method and a computer-readable storage medium, which are used for realizing the positioning of a target object and improving the flexibility of determining the position of the target object.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a refrigerator, which comprises a machine shell, a door and a door, wherein the machine shell is provided with an opening; the door body is used for opening and closing the opening; the shell and the door body are matched to form a cavity;

a plurality of RFID antennas are arranged in the cavity; a plurality of non-shielding partition plates are arranged in the cavity, and divide the cavity into a plurality of cabins by the plurality of partition plates; each cabin corresponds to an RFID antenna set, the RFID antenna sets corresponding to the cabins comprise RFID antennas capable of covering the cabins by transmitted electromagnetic wave signals, and the RFID antenna sets corresponding to different cabins are different.

The cavity of the refrigerator is provided with a plurality of non-shielding partition plates, the cavity is divided into a plurality of cabins by the partition plates, each cabin is provided with at least one RFID antenna, and the RFID antennas can be used for transmitting electromagnetic wave signals to cover each cabin; meanwhile, the RFID antennas may be disposed at preset positions of each cabin, where the preset positions may be the top, the bottom, or the side of each cabin, so that each cabin corresponds to one RFID antenna set, and the RFID antenna set corresponding to each cabin is three different RFID antenna sets. After determining different RFID antenna sets corresponding to each cabin, because the RFID antenna sets include RFID antennas capable of covering the cabins, according to the corresponding relationship between each cabin and the corresponding RFID antenna set, and according to the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag corresponding to the target object, the cabin where the target object is located can be accurately determined, for example, a refrigerator according to the electromagnetic wave signal received by the RFID tag corresponding to the target object

The determined corresponding RFID antennas are the RFID antenna 1 and the RFID antenna 2, the RFID antenna 1 and the RFID antenna 2 correspond to the RFID antenna set A, according to the corresponding relation between each cabin and the RFID antenna set, the RFID antenna set A corresponding to the cabin A can be uniquely determined, and then the target object is determined to be located in the cabin A, so that the position of the target object is positioned, and the flexibility of determining the position of the target object is improved.

Optionally, the refrigerator further comprises an RFID read-write unit and a signal processing unit;

the RFID reading and writing unit is used for controlling each RFID antenna to emit electromagnetic wave signals outwards, receiving the activation signals returned by the objects in each cabin through the RFID tags through each RFID antenna, and sending the RFID antenna and the RFID tag corresponding to each activation signal to the signal processing unit;

the signal processing unit is used for determining the RFID antenna corresponding to each RFID label according to the RFID antenna and the RFID label corresponding to each activation signal; and determining the cabin where the object corresponding to each RFID tag is located according to the RFID antenna set corresponding to each cabin.

Optionally, the RFID antenna includes an electromagnetic wave emitting unit and an electromagnetic wave absorbing layer;

the electromagnetic wave absorption layer is arranged between the electromagnetic wave emission unit and the installation surface of the RFID antenna;

the electromagnetic wave transmitting unit is used for transmitting electromagnetic wave signals outwards under the control of the RFID read-write unit;

the electromagnetic wave absorption layer is used for absorbing electromagnetic wave signals emitted by the electromagnetic wave emission unit towards one side of the electromagnetic wave absorption layer.

Optionally, a first insulating layer is further included between the electromagnetic wave emitting unit and the electromagnetic wave absorbing unit.

Optionally, a second insulating layer is further included between the electromagnetic wave absorption layer and the mounting surface of the RFID antenna.

Optionally, the refrigerator further comprises a power supply unit and a detection unit; a first insulation detection layer is further arranged between the electromagnetic wave emission unit and the first insulation layer, and a second insulation detection layer is further arranged between the electromagnetic wave absorption layer and the second insulation layer;

the power supply unit is respectively connected with the first insulation detection layer and the second insulation detection layer and used for supplying power to the first insulation detection layer and the second insulation detection layer;

the detection unit is connected with the first insulation detection layer and the second insulation detection layer respectively, and is used for detecting the resistance or current of the first insulation detection layer and the second insulation detection layer and sending the detected resistance or current of the first insulation detection layer and the second insulation detection layer to the signal processing unit;

the signal processing unit is used for judging whether the first insulating layer is normal or not according to the resistance or the current of the first insulating detection layer; and judging whether the second insulating layer is normal or not according to the resistance or the current of the second insulating detection layer.

Optionally, the housing comprises an electromagnetic wave signal shielding layer.

Based on the same inventive concept, the invention also provides a positioning method, which is applied to a refrigerator with a plurality of RFID antennas and comprises the following steps:

responding to a command which is triggered by a user and used for determining the position of a target object in the refrigerator, and transmitting electromagnetic wave signals into the cavity of the refrigerator through each RFID antenna; wherein the refrigerator includes a cabinet having an opening; the door body is used for opening and closing the opening, and the shell and the door body are matched to form a cavity; a plurality of RFID antennas are arranged in the cavity; a plurality of non-shielding partition plates are arranged in the cavity, and the partition plates divide the cavity into a plurality of cabins; the plurality of RFID antennas are respectively arranged in each cabin; each cabin corresponds to one RFID antenna set, the RFID antenna sets corresponding to the cabins comprise RFID antennas capable of covering the cabins by transmitted electromagnetic wave signals, and the RFID antenna sets corresponding to different cabins are different;

detecting an activation signal returned by the RFID label of the target object, and determining an RFID antenna corresponding to an electromagnetic wave signal received by the RFID label according to the activation signal; wherein the activation signal is returned after the RFID tag of the target object receives the electromagnetic wave signal;

and determining the cabin where the target object is located according to the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag and the RFID antenna set corresponding to each cabin.

Optionally, the RFID antenna sets corresponding to the respective cabins are generated according to the following manner:

determining cabins which can be covered by electromagnetic wave signals sent by the RFID antennas according to the position information of the RFID antennas in the cabins;

and generating an RFID antenna set corresponding to each cabin according to the cabins which can be covered by the electromagnetic wave signals transmitted by the RFID antennas.

The present invention also provides a computer-readable storage medium having stored therein computer program instructions which, when run on a computer, cause the computer to perform a processing method as described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1A is a side view of a refrigerator according to an embodiment of the present invention;

fig. 1B is a side view of another refrigerator according to an embodiment of the present invention;

fig. 1C is a side view of another refrigerator according to an embodiment of the present invention;

fig. 1D is a side view of another refrigerator according to an embodiment of the present invention;

fig. 2A is a side view of another refrigerator according to an embodiment of the present invention;

fig. 2B is a side view of another refrigerator according to an embodiment of the present invention;

fig. 2C is a side view of another refrigerator according to an embodiment of the present invention;

fig. 3A is a front view of another refrigerator according to an embodiment of the present invention;

fig. 3B is a front view of another refrigerator according to an embodiment of the present invention;

fig. 3C is a front view of another refrigerator according to an embodiment of the present invention;

fig. 4A is a front view of another refrigerator according to an embodiment of the present invention;

fig. 4B is a front view of another refrigerator according to an embodiment of the present invention;

fig. 4C is a front view of another refrigerator according to an embodiment of the present invention;

fig. 5A is a front view of another refrigerator according to an embodiment of the present invention;

fig. 5B is a front view of another refrigerator according to an embodiment of the present invention;

fig. 5C is a front view of another refrigerator according to an embodiment of the present invention;

fig. 6A is a side view of another refrigerator according to an embodiment of the present invention;

fig. 6B is a side view of another refrigerator according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an RFID antenna according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram illustrating an electromagnetic wave absorption layer according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of another RFID antenna provided in the embodiments of the present invention;

FIG. 10 is a schematic structural diagram of another RFID antenna provided in the embodiments of the present invention;

fig. 11 is a schematic structural diagram of an apparatus for determining whether an insulating layer is normal according to an embodiment of the present invention;

fig. 12 is an optional application scenario provided in an embodiment of the present invention;

FIG. 13 is another alternative application scenario provided by embodiments of the present invention;

fig. 14 is a schematic flow chart of a positioning method according to an embodiment of the present invention;

fig. 15 is a schematic overall flowchart of a positioning method according to an embodiment of the present invention;

fig. 16 is a schematic overall flowchart of another positioning method according to an embodiment of the present invention.

Icon: 100-a refrigerator; 110-a housing; 120-a door body; 130-a cavity; 141-a separator; 142-a separator; 151-cabin; 152-a cabin; 153-cabin; 161-an RFID antenna; 162-an RFID antenna; 163-an RFID antenna; 170-RFID read-write unit; 180-a signal processing unit; 191-a power supply unit; 192-a detection unit; 200-a refrigerator; 210-a separator; 221-a cabin; 222-a cabin; 231-an RFID antenna; 232-an RFID antenna; 300-a refrigerator; 310-a separator; 321-a cabin; 322-a cabin; 331-an RFID antenna; 332-an RFID antenna; 400-a refrigerator; 410-a separator; 420-a separator; 421-cabin; 422-cabin; 423-a cabin; 431-an RFID antenna; 432-an RFID antenna; 433-an RFID antenna; 500-a refrigerator; 510-a separator; 520-a separator; 521-a cabin; 522-a cabin; 523-cabin; 531-an RFID antenna; 532-an RFID antenna; 533-an RFID antenna; 600-a refrigerator; 610-a separator; 620-spacer plate; 630-a separator; 640-a separator; 621-cabin; 622-cabin; 623-a cabin; 624-a cabin; 625-a cabin; 631-an RFID antenna; 632-an RFID antenna; 633-an RFID antenna; 634-an RFID antenna; 635-an RFID antenna; 710-an electromagnetic wave emitting unit; 720-electromagnetic wave absorption layer; 810-high dielectric materials; 820-high magnetic material; 830-a conductive material; 840-a resin; 930 — a first insulating layer; 940-a second insulating layer; 1050-a first insulation detection layer; 1060-a second insulation detection layer; 1200-a refrigerator; 1210-display screen; 1220-microphone; 1230-a loudspeaker.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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.

As shown in fig. 1A, an embodiment of the invention provides a side view of a refrigerator 100, the refrigerator 100 includes a cabinet 110, the cabinet 110 has an opening; the door body 120, the door body 120 is used for opening and closing the opening; the shell 110 and the door 120 are matched to form a cavity 130, and a plurality of RFID antennas are arranged in the cavity 130; a plurality of non-shielding partitions are disposed in the cavity 130, and the plurality of partitions divide the cavity 130 into a plurality of compartments.

In an alternative embodiment, as shown in fig. 1A, two

non-shielding partitions

141 and 142 are disposed in the cavity 130, and the

partitions

141 and 142 divide the cavity 130 into three compartments, namely a compartment 151, a compartment 152, and a compartment 153; wherein, an RFID antenna 161 is arranged in the cabin 151; an RFID antenna 162 is disposed in compartment 152; an RFID antenna 163 is disposed in the chamber 153;

the cabin 151, the cabin 152, and the cabin 153 correspond to one RFID antenna set respectively, where the RFID antenna sets are sets capable of detecting RFID tags, and the RFID antenna sets corresponding to different cabins are different, and each of the RFID antenna sets corresponding to a cabin includes an RFID antenna capable of covering the cabin by an emitted electromagnetic wave signal.

It should be noted that an RFID antenna is disposed in each compartment of the refrigerator 100, so that each compartment corresponds to a different RFID antenna set, and the RFID antenna set corresponding to each compartment includes at least one RFID antenna, and an electromagnetic wave signal emitted by the at least one RFID antenna can cover the corresponding compartment, but the specific position of the RFID antenna disposed in each compartment is not limited in the embodiment of the present invention.

The cavity of the refrigerator is provided with a plurality of non-shielding partition plates, the cavity is divided into a plurality of cabins by the partition plates, each cabin is provided with at least one RFID antenna, and the RFID antennas can be used for transmitting electromagnetic wave signals to cover the cabins; meanwhile, the RFID antennas may be disposed at preset positions of each cabin, where the preset positions may be the top, the bottom, or the side of each cabin, so that each cabin corresponds to one RFID antenna set, and the RFID antenna set corresponding to each cabin is a different RFID antenna set. After determining the different RFID antenna sets corresponding to each cabin, because the RFID antenna sets comprise RFID antennas capable of covering the cabins, the cabin where the target object is located can be accurately determined according to the corresponding relationship between each cabin and the corresponding RFID antenna set and according to the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag corresponding to the target object, for example, the corresponding RFID antennas determined by the refrigerator according to the electromagnetic wave signals received by the RFID tag corresponding to the target object are RFID antenna 1 and RFID antenna 2, and RFID antenna 1 and RFID antenna 2 correspond to RFID antenna set a, according to the corresponding relation between each cabin and the RFID antenna set, the RFID antenna set A corresponding to the cabin A can be uniquely determined, then the target object is determined to be positioned in the cabin A, therefore, the position of the target object is positioned, and the flexibility of determining the position of the target object is improved.

Optionally, the housing 110 includes an electromagnetic wave signal shielding layer.

Optionally, as shown in fig. 1A, the refrigerator 100 further includes an RFID read-write unit 170 and a signal processing unit 180;

the RFID reading and writing unit 170 is configured to control each RFID antenna to emit an electromagnetic wave signal to the outside, receive, through each RFID antenna, an activation signal returned by an object located in each cabin through an RFID tag, and send the RFID antenna and the RFID tag corresponding to each activation signal to the signal processing unit 180;

the signal processing unit 180 is configured to determine, according to the RFID antenna and the RFID tag corresponding to each activation signal, an RFID antenna corresponding to each RFID tag; and determining the cabin where the object corresponding to each RFID tag is located according to the RFID antenna set corresponding to each cabin.

It should be noted that the refrigerator 100 at least includes one RFID read/write unit 170, and the RFID read/write unit 170 may be disposed together with the signal processing unit 180; or at other locations in the refrigerator 100, for example, the RFID reader/writer unit 170 may be disposed on a PCB board in the refrigerator 100.

In a possible implementation manner, the embodiment of the present invention may generate the RFID antenna sets corresponding to the respective cabins according to the following manners:

determining cabins which can be covered by electromagnetic wave signals sent by the RFID antennas according to the position information of the RFID antennas in the cabins; and generating an RFID antenna set corresponding to each cabin according to the cabin which can be covered by the electromagnetic wave signal transmitted by each RFID antenna.

The following describes in detail the generation process of the RFID antenna sets corresponding to the respective compartments, with reference to various types of refrigerators.

As shown in fig. 1A, RFID antenna 161, RFID antenna 162, and RFID antenna 163 are respectively located on the bottom of chamber 151, chamber 152, and chamber 153, and it is determined that the chamber 151 can be covered with the electromagnetic wave signal transmitted from RFID antenna 161, the chamber 151 and the chamber 152 can be covered with the electromagnetic wave signal transmitted from RFID antenna 162, and the chamber 151, the chamber 152, and the chamber 153 can be covered with the electromagnetic wave signal transmitted from RFID antenna 163. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the RFID antenna set corresponding to the cabin 151 includes an RFID antenna 161, an RFID antenna 162, and an RFID antenna 163; the corresponding set of RFID antennas for compartment 152 includes RFID antenna 162 and RFID antenna 163; the corresponding set of RFID antennas for compartment 153 includes RFID antenna 163. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 1A is shown in table 1:

TABLE 1

As shown in fig. 1B, RFID antenna 161, RFID antenna 162, and RFID antenna 163 are respectively located on the top layer of cabin 151, cabin 152, and cabin 153, and it is determined that the electromagnetic wave signal transmitted by RFID antenna 161 can cover cabin 151, cabin 152, and cabin 153, the electromagnetic wave signal transmitted by RFID antenna 162 can cover cabin 152 and cabin 153, and the electromagnetic wave signal transmitted by RFID antenna 163 can cover cabin 153. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the set of RFID antennas corresponding to the cabin 151 includes RFID antennas 161; the corresponding set of RFID antennas for compartment 152 includes RFID antenna 161 and RFID antenna 162; the corresponding set of RFID antennas for compartment 153 includes RFID antenna 161, RFID antenna 162, and RFID antenna 163. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 1B is shown in table 2:

TABLE 2

As shown in fig. 1C, RFID antenna 161 is located at the bottom of compartment 151, RFID antenna 162 is located at the top of compartment 152, and RFID antenna 163 is located at the top of compartment 153, so that it is determined that the compartment 151 can be covered with the electromagnetic wave signal transmitted by RFID antenna 161, the compartment 152 and the compartment 153 can be covered with the electromagnetic wave signal transmitted by RFID antenna 162, and the compartment 153 can be covered with the electromagnetic wave signal transmitted by RFID antenna 163. Therefore, generating the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the set of RFID antennas corresponding to the cabin 151 includes an RFID antenna 161; the set of RFID antennas corresponding to compartment 152 includes RFID antenna 162; the corresponding set of RFID antennas for compartment 153 includes RFID antenna 162 and RFID antenna 163. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 1C is shown in table 3:

TABLE 3

As shown in fig. 1D, RFID antenna 161, RFID antenna 162, RFID antenna 163, and RFID antenna 164 are respectively located on the bottom layer of cabin 151, the top layer of cabin 152, the bottom layer of cabin 152, and the top layer of cabin 153, and it is determined that the cabin 151 can be covered with the electromagnetic wave signal transmitted by RFID antenna 161, the cabin 152 and the cabin 153 can be covered with the electromagnetic wave signal transmitted by RFID antenna 162, the cabin 151 and the cabin 152 can be covered with the electromagnetic wave signal transmitted by RFID antenna 163, and the cabin 153 can be covered with the electromagnetic wave signal transmitted by RFID antenna 164. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the set of RFID antennas corresponding to the cabin 151 includes an RFID antenna 161 and an RFID antenna 163; the corresponding set of RFID antennas for compartment 152 includes RFID antenna 162 and RFID antenna 163; the corresponding set of RFID antennas for compartment 153 includes RFID antenna 162 and RFID antenna 164. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 1D is shown in table 4:

TABLE 4

As shown in fig. 2A, an embodiment of the present invention provides a refrigerator 200, a non-shielding partition 210 is disposed in a cavity, the partition 210 divides the cavity into two compartments, namely a compartment 221 and a compartment 222; wherein, an RFID antenna 231 is arranged in the cabin 221, and an RFID antenna 232 is arranged in the cabin 222; the RFID antenna 231 and the RFID antenna 232 are respectively located at the bottom of the cabin 221 and the top of the cabin 222, and it is determined that the electromagnetic wave signal transmitted by the RFID antenna 231 can cover the cabin 221 and the electromagnetic wave signal transmitted by the RFID antenna 232 can cover the cabin 222. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the set of RFID antennas corresponding to the cabin 221 includes the RFID antenna 231; the corresponding set of RFID antennas for the compartment 222 includes RFID antenna 232. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 2A is shown in table 5:

cabin 221	RFID antenna 231
		The chamber 222	RFID antenna 232

TABLE 5

As shown in fig. 2B, the

RFID antennas

231 and 232 are respectively located at the top of the cabin 221 and the cabin 222, and it is determined that the electromagnetic wave signal transmitted by the RFID antenna 231 can cover the cabin 221 and the cabin 222, and the electromagnetic wave signal transmitted by the RFID antenna 232 can cover the cabin 222. Therefore, generating the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the set of RFID antennas corresponding to the cabin 221 includes the RFID antenna 231; the corresponding set of RFID antennas for compartment 222 includes RFID antenna 231 and RFID antenna 232. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 2B is shown in table 6:

TABLE 6

As shown in fig. 2C, the

RFID antennas

231 and 232 are respectively located at the bottom of the cabin 221 and the cabin 222, so that the electromagnetic wave signal transmitted by the RFID antenna 231 can cover the cabin 221 and the electromagnetic wave signal transmitted by the RFID antenna 232 can cover the cabin 221 and the cabin 222. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the corresponding set of RFID antennas for the cabin 221 includes RFID antenna 231 and RFID antenna 232; the corresponding set of RFID antennas for the compartment 222 includes RFID antenna 232. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 2C is shown in table 7:

TABLE 7

As shown in fig. 3A, the embodiment of the present invention provides a refrigerator 300, wherein a non-shielding partition 310 is disposed in a cavity, and the partition 310 divides the cavity into two compartments, namely a compartment 321 and a compartment 322; wherein, an RFID antenna 331 is arranged in the cabin 321, and an RFID antenna 332 is arranged in the cabin 322; the right side of the cabin 321 is provided with the RFID antenna 331 with the left emission direction, the left side of the cabin 322 is provided with the RFID antenna 332 with the right emission direction, the electromagnetic wave signal sent by the RFID antenna 331 can cover the cabin 321, and the electromagnetic wave signal sent by the RFID antenna 332 can cover the cabin 322. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the set of RFID antennas corresponding to compartment 321 includes RFID antenna 331; the corresponding set of RFID antennas for the cabin 322 includes the RFID antenna 332. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 3A is shown in table 8:

cabin 321	RFID antenna 331
		Cabin 322	RFID antenna 332

TABLE 8

As shown in fig. 3B, the RFID antenna 331 with the right transmission direction is installed on the left side of the cabin 321, the RFID antenna 332 with the right transmission direction is installed on the left side of the cabin 322, it is determined that the cabin 321 and the cabin 322 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 331, and the cabin 322 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 332. Therefore, generating the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the set of RFID antennas corresponding to compartment 321 includes RFID antenna 331; the corresponding set of RFID antennas for compartment 322 includes RFID antenna 331 and RFID antenna 332. For example, the RFID antennas corresponding to each compartment of the refrigerator shown in FIG. 3B are assembled as

Shown in Table 9:

TABLE 9

As shown in fig. 3C, the RFID antenna 331 with the transmission direction facing left is installed on the right side of the cabin 321, the RFID antenna 332 with the transmission direction facing left is installed on the right side of the cabin 322, it is determined that the cabin 321 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 331, and the cabin 321 and the cabin 322 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 332. Therefore, generating the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the corresponding set of RFID antennas for compartment 321 includes RFID antenna 331 and RFID antenna 332; the corresponding set of RFID antennas for the cabin 322 includes the RFID antenna 332. For example, the RFID antennas corresponding to each compartment of the refrigerator shown in FIG. 3C are assembled as

Table 10 shows:

watch 10

As shown in fig. 4A, the embodiment of the present invention provides a refrigerator 400, two

non-shielding partitions

410 and 420 are disposed in a cavity, and the

partitions

410 and 420 divide the cavity into three compartments, namely, a compartment 421, a compartment 422, and a compartment 423; wherein, an RFID antenna 431 is arranged in the cabin 421, an RFID antenna 432 is arranged in the cabin 422, and an RFID antenna 433 is arranged in the cabin 423;

the RFID antenna 431 is positioned at the bottom of the cabin 421, the RFID antenna 432 with the left emission direction is arranged at the right side of the cabin 422, the RFID antenna 433 with the right emission direction is arranged at the left side of the cabin 423, it is determined that the cabin 421 can be covered by the electromagnetic wave signals sent by the RFID antenna 431, the cabin 421 and the cabin 422 can be covered by the electromagnetic wave signals sent by the RFID antenna 432, and the cabin 421 and the cabin 423 can be covered by the electromagnetic wave signals sent by the RFID antenna 433. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the RFID antenna set corresponding to the cabin 421 includes an RFID antenna 431, an RFID antenna 432, and an RFID antenna 433; the set of RFID antennas corresponding to compartment 422 includes RFID antenna 432; the corresponding set of RFID antennas for the compartment 423 includes an RFID antenna 433. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 4A is shown in table 11:

TABLE 11

As shown in fig. 4B, the RFID antenna 431 is located at the bottom of the cabin 421, the RFID antenna 432 with the right emission direction is installed on the left side of the cabin 422, the RFID antenna 433 with the right emission direction is installed on the left side of the cabin 423, it is determined that the cabin 421 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 431, the

cabins

421 and 422 and the cabin 423 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 432, and the cabin 421 and the cabin 423 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 433. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the RFID antenna set corresponding to the cabin 421 includes an RFID antenna 431, an RFID antenna 432, and an RFID antenna 433; the set of RFID antennas corresponding to compartment 422 includes RFID antenna 432; the set of RFID antennas corresponding to the chamber 423 includes an RFID antenna 432 and an RFID antenna 433. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 4B is shown in table 12:

TABLE 12

As shown in fig. 4C, the RFID antenna 431 is located at the bottom of the cabin 421, the RFID antenna 432 with the left transmission direction is installed at the right side of the cabin 422, the RFID antenna 433 with the left transmission direction is installed at the right side of the cabin 423, it is determined that the cabin 421 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 431, the cabin 421 and the cabin 422 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 432, and the cabin 421, the cabin 422 and the cabin 423 can be covered by the electromagnetic wave signal transmitted by the RFID antenna 433. Therefore, generating the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the RFID antenna set corresponding to the cabin 421 includes an RFID antenna 431, an RFID antenna 432, and an RFID antenna 433; the set of RFID antennas corresponding to compartment 422 includes RFID antenna 432 and RFID antenna 433; the corresponding set of RFID antennas for the compartment 423 includes an RFID antenna 433. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 4C is shown in table 13:

watch 13

As shown in fig. 5A, the embodiment of the present invention provides a refrigerator 500, two

non-shielding partitions

510 and 520 are disposed in a cavity, and the partition 510 and the partition 520 divide the cavity into three compartments, namely a compartment 521, a compartment 522, and a compartment 523; an RFID antenna 531 is arranged in the cabin 521, an RFID antenna 532 is arranged in the cabin 522, and an RFID antenna 533 is arranged in the cabin 523; the left side of the cabin 521 is provided with the RFID antenna 531 with the transmission direction towards the right, the RFID antenna 532 is positioned at the bottom of the cabin 522, the RFID antenna 533 is positioned at the top of the cabin 523, it is determined that the cabin 521 can be covered by the electromagnetic wave signals transmitted by the RFID antenna 531, the cabin 521 and the cabin 522 can be covered by the electromagnetic wave signals transmitted by the RFID antenna 532, and the cabin 521 and the cabin 523 can be covered by the electromagnetic wave signals transmitted by the RFID antenna 533. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the RFID antenna set corresponding to the cabin 521 includes an RFID antenna 531, an RFID antenna 532, and an RFID antenna 533; the corresponding set of RFID antennas for compartment 522 includes RFID antenna 532; the corresponding set of RFID antennas for the compartment 523 includes RFID antennas 533. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 5A is shown in table 14:

TABLE 14

As shown in fig. 5B, an RFID antenna 531 is installed on the left side of the cabinet 521, the transmission direction of which is toward the right, an RFID antenna 532 is located on the top of the cabinet 522, an RFID antenna 533 is located on the top of the cabinet 523, it is determined that the cabinet 521 can be covered with the electromagnetic wave signal transmitted by the RFID antenna 531, the cabinet 521, the cabinet 522, and the cabinet 523 can be covered with the electromagnetic wave signal transmitted by the RFID antenna 532, and the cabinet 521 and the cabinet 523 can be covered with the electromagnetic wave signal transmitted by the RFID antenna 533. Therefore, generating the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the RFID antenna set corresponding to the cabin 521 includes an RFID antenna 531, an RFID antenna 532, and an RFID antenna 533; the corresponding set of RFID antennas for compartment 522 includes RFID antenna 532; the corresponding set of RFID antennas for compartment 523 includes RFID antenna 532 and RFID antenna 533. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 5B is shown in table 15:

watch 15

As shown in fig. 5C, an RFID antenna 531 is installed on the left side of the cabin 521, the transmission direction of which is toward the right, an RFID antenna 532 is located on the bottom of the cabin 522, an RFID antenna 533 is located on the bottom of the cabin 523, it is determined that the cabin 521 can be covered with the electromagnetic wave signal transmitted by the RFID antenna 531, the cabin 521 and the cabin 522 can be covered with the electromagnetic wave signal transmitted by the RFID antenna 532, and the cabin 521, the cabin 522 and the cabin 523 can be covered with the electromagnetic wave signal transmitted by the RFID antenna 533. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the RFID antenna set corresponding to the cabin 521 includes an RFID antenna 531, an RFID antenna 532, and an RFID antenna 533; the corresponding set of RFID antennas for the cabin 522 includes an RFID antenna 532 and an RFID antenna 533; the corresponding set of RFID antennas for the compartment 523 includes RFID antennas 533. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 5C is shown in table 16:

TABLE 16

As shown in fig. 6A, in the refrigerator 600 according to the embodiment of the present invention, four non-shielding partitions 610, 620, 630 and 640 are disposed in the cavity, and the partitions 610, 620, 630 and 640 divide the cavity into five compartments, namely, a compartment 621, a compartment 622, a compartment 623, a compartment 624 and a compartment 625; wherein, an RFID antenna 631 is disposed in the chamber 621, an RFID antenna 632 is disposed in the chamber 622, an RFID antenna 633 is disposed in the chamber 623, an RFID antenna 634 is disposed in the chamber 624, and an RFID antenna 635 is disposed in the chamber 625; RFID antenna 631 is located at the bottom of chamber 621, RFID antennas 632, 633, 634, 635 are located at the top of chamber 622, chamber 623, chamber 624, and chamber 625, respectively, it is determined that the chamber 621 can be covered by electromagnetic wave signals transmitted by RFID antenna 631, chamber 622, chamber 623, chamber 624, and chamber 625 can be covered by electromagnetic wave signals transmitted by RFID antenna 632, chamber 623, chamber 624, and chamber 625 can be covered by electromagnetic wave signals transmitted by RFID antenna 633, chamber 624, and chamber 625 can be covered by electromagnetic wave signals transmitted by RFID antenna 634, chamber 624, and chamber 625 can be covered by electromagnetic wave signals transmitted by RFID antenna 635. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the corresponding set of RFID antennas for the compartment 621 includes RFID antenna 631; the set of RFID antennas corresponding to compartment 622 includes RFID antenna 632; the set of RFID antennas corresponding to the cabin 623 includes RFID antenna 632 and RFID antenna 633; the RFID antenna set corresponding to the cabin 624 includes an RFID antenna 632, an RFID antenna 633 and an RFID antenna 634; the set of RFID antennas corresponding to chamber 625 includes RFID antenna 632, RFID antenna 633, RFID antenna 634, and RFID antenna 635. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 6A is shown in table 17:

TABLE 17

As shown in fig. 6B, RFID antenna 631, RFID antenna 632, RFID antenna 633, RFID antenna 634, and RFID antenna 635 are respectively located at the top of chamber 621, chamber 622, chamber 623, chamber 624, and chamber 625, and it is determined that the electromagnetic wave signal transmitted by RFID antenna 631 covers chamber 621, chamber 622, chamber 623, chamber 624, and chamber 625, the electromagnetic wave signal transmitted by RFID antenna 632 covers chamber 622, chamber 623, chamber 624, and chamber 625, the electromagnetic wave signal transmitted by RFID antenna 633 covers chamber 623, chamber 624, and chamber 625, the electromagnetic wave signal transmitted by RFID antenna 634 covers chamber 624 and chamber 625, and the electromagnetic wave signal transmitted by RFID antenna 635 covers chamber 625 and chamber 635. Therefore, the generation of the RFID antenna sets corresponding to the respective cabins based on the cabins that can be covered by the electromagnetic wave signals transmitted by the respective RFID antennas is: the corresponding set of RFID antennas for compartment 621 includes RFID antenna 631; the corresponding set of RFID antennas for compartment 622 includes RFID antenna 631 and RFID antenna 632; the set of RFID antennas corresponding to the cabin 623 includes RFID antenna 631, RFID antenna 632, and RFID antenna 633; the RFID antenna set corresponding to the cabin 624 includes an RFID antenna 631, an RFID antenna 632, an RFID antenna 633, and an RFID antenna 634; the set of RFID antennas for compartment 625 includes RFID antenna 631, RFID antenna 632, RFID antenna 633, RFID antenna 634, and RFID antenna 635. For example, the set of RFID antennas corresponding to each compartment of the refrigerator shown in fig. 6B is shown in table 18:

watch 18

It should be noted that, as shown in fig. 1A-6B, each cabin in the refrigerator corresponds to one RFID antenna set, the RFID antenna set corresponding to the cabin includes RFID antennas that can cover the cabin by the transmitted electromagnetic wave signals, and the RFID antenna sets corresponding to different cabins are different.

Optionally, as shown in fig. 7, an embodiment of the present invention provides a schematic structural diagram of an RFID antenna, where the RFID antenna includes an electromagnetic wave emitting unit 710 and an electromagnetic wave absorbing layer 720.

The electromagnetic wave absorption layer 720 is disposed between the electromagnetic wave emitting unit 710 and the mounting surface of the RFID antenna.

The electromagnetic wave transmitting unit 710 is used for transmitting an electromagnetic wave signal outwards under the control of the RFID reading and writing unit 170; the electromagnetic wave absorption layer 720 serves to absorb an electromagnetic wave signal emitted from the electromagnetic wave emission unit 710 toward a side of the electromagnetic wave absorption layer 720.

It should be noted that the electromagnetic wave signal emitted by the RFID antenna has no directivity, and the electromagnetic wave absorption layer 720 is disposed between the electromagnetic wave emission unit 710 and the mounting surface of the RFID antenna, and the electromagnetic wave absorption layer 720 can absorb the electromagnetic wave signal emitted by the electromagnetic wave emission unit 710 toward the electromagnetic wave absorption layer 720, so that the electromagnetic wave signal emitted by the electromagnetic wave emission unit 710 has directivity.

The electromagnetic wave absorbing layer 720 is specifically explained below:

as shown in fig. 8, an embodiment of the present invention provides a schematic structural diagram of a composition of an electromagnetic wave absorption layer, and the embodiment of the present invention mixes a high dielectric material 810, a high magnetic material 820, and a conductive material 830 in a resin 840 in a unit of particles to form the electromagnetic wave absorption layer 820;

barium titanate can be used as the high dielectric material, and ferrite can be used as the high magnetic material; the electromagnetic wave absorption layer 720 has a structure in which a highly dielectric material and a highly magnetic material are three-dimensionally continuous with each other in the composite; the structure in which the highly dielectric material and the highly magnetic material are three-dimensionally continuous means a structure in which the highly dielectric material and the highly magnetic material are in contact with each other in the cut surface even when the structure is cut at any angle at any position.

The electromagnetic wave absorption layer 720, which is manufactured by mixing the highly dielectric material 810, the highly magnetic material 820, and the conductive material 830 in the resin 840 in a particle unit, has a significantly lower relative dielectric constant and relative magnetic permeability than the highly magnetic material 820 and the conductive material 830 before mixing. For example, in the case of using barium titanate as a highly dielectric material and ferrite as a highly magnetic material, the relative dielectric constant ε of the electromagnetic wave absorption layer 720 _r Reduced to 1/100, relative magnetic permeability mu _r Also lowered to about 1/100, and therefore, the electromagnetic wave absorption layer 720 can absorb the electromagnetic wave signal emitted from the electromagnetic wave emission unit 710 toward the side of the electromagnetic wave absorption layer 720.

It should be noted that the above-mentioned composition structure of the electromagnetic wave absorption layer 720 is only an example of the embodiment of the present invention, and the composition structure of the electromagnetic wave absorption layer 720 to be protected by the embodiment of the present invention is not limited to the above-mentioned example.

Optionally, as shown in fig. 9, a first insulating layer 930 is further included between the electromagnetic wave emitting unit 710 and the electromagnetic wave absorbing layer 720.

It should be noted that, the electromagnetic wave absorbing layer 720 has high water content and high conductivity, and if the electromagnetic wave emitting unit 710 directly contacts the electromagnetic wave absorbing layer 720, the circuit board in the electromagnetic wave emitting unit 710 will contact water molecules contained in the electromagnetic wave absorbing layer 720, which will cause the conductivity of the circuit board to change, and the electromagnetic wave emitting unit 710 will be damaged. Therefore, an insulating layer is added between the electromagnetic wave emitting unit 710 and the electromagnetic wave absorbing layer 720 to isolate the electromagnetic wave emitting unit 710 from the electromagnetic wave absorbing layer 720, so as to ensure the normal operation of the electromagnetic wave emitting unit 710.

The insulating material used for the first insulating layer 930 may include, but is not limited to:

inorganic insulating materials, organic insulating materials, hybrid insulating materials.

Optionally, as shown in fig. 9, a second insulating layer 940 is further included between the electromagnetic wave absorption layer 720 and the mounting surface of the RFID antenna.

Note that the insulating materials used for the second insulating layer 940 and the first insulating layer 930 may be the same or different. In addition, if a circuit board is provided on the mounting surface of the RFID antenna, it is necessary to mount an insulating layer between the electromagnetic wave absorbing layer 720 and the mounting surface to isolate the electromagnetic wave absorbing layer 720 from the mounting surface in order to ensure normal operation of the circuit board.

Optionally, as shown in fig. 10, the electromagnetic wave emitting unit 710 and the first insulating layer 930 further include a first insulating detection layer 1050, and the electromagnetic wave absorption layer 720 and the second insulating layer 940 further include a second insulating detection layer 1060.

Note that the first insulating layer 930 isolates the electromagnetic wave emitting means 710 from the electromagnetic wave absorbing layer 720, and the second insulating layer 940 isolates the electromagnetic wave absorbing layer 720 from the mounting surface of the RFID antenna, but in order to detect whether the first insulating layer 930 and the second insulating layer 940 are well insulated, it is necessary to provide an insulation detection layer between the electromagnetic wave emitting means 710 and the first insulating layer 930, and between the electromagnetic wave absorbing layer 720 and the second insulating layer 940.

Optionally, as shown in fig. 1A-6B, the refrigerator 100 further includes a power supply unit 191 and a detection unit 192.

It should be noted that the power supply unit 191 and the detection unit 192 may be disposed on a PCB board in the refrigerator.

Optionally, as shown in fig. 11, in an embodiment of the present invention, a schematic structural diagram of a device for determining whether an insulating layer is normal is provided, where the power supply unit 191 is connected to the first insulating detection layer 1050 and the second insulating detection layer 1060, respectively, and is configured to supply power to the first insulating detection layer 1050 and the second insulating detection layer 1060;

the detection unit 192 is connected to the first insulation detection layer 1050 and the second insulation detection layer 1060, and is configured to detect the resistance or the current of the first insulation detection layer 1050 and the second insulation detection layer 1060, and send the detected resistance or the current of the first insulation detection layer 1050 and the second insulation detection layer 1060 to the signal processing unit 180;

the signal processing unit 180 is configured to determine whether the first insulating layer 930 is normal according to the resistance or the current of the first insulating detection layer 1050; and judging whether the second insulating layer 940 is normal or not according to the resistance or the current of the second insulating detection layer 1060.

It should be noted that, the power supply unit 191 provides a suitable working voltage for the first insulation detection layer 1050, and if the detection unit 192 detects that the resistance of the first insulation detection layer 1050 is too low or the current is too high under a certain working voltage, the signal processing unit 180 determines that the first insulation layer 930 is damaged; if the detection unit 192 detects that the resistance of the first insulating detection layer 1050 is too large or the current is too small under a certain operating voltage, the signal processing unit 180 determines that the first insulating layer 930 is normal.

Similarly, the power supply unit 191 provides a suitable working voltage for the second insulation detection layer 1060, and if the detection unit 192 detects that the resistance of the second insulation detection layer 1060 is too low or the current is too high under a certain working voltage, the signal processing unit 180 determines that the second insulation layer 940 is damaged; if the detection unit 192 detects that the resistance of the second insulation detection layer 1060 is too large or the current is too small under a certain working voltage, the signal processing unit 180 determines that the second insulation layer 940 is normal.

Wherein, the insulation detection layer can be a conductive material; for example, the insulating detection layer may be made of metal.

It should be noted that the above-mentioned manner for determining whether the first insulating layer 930 and the second insulating layer 940 are normal by the signal processing unit 180 is only an example of the embodiment of the present invention, and the manner for determining whether the first insulating layer 930 and the second insulating layer 940 are normal by the embodiment of the present invention is not limited to the above-mentioned example, and any manner capable of determining whether the first insulating layer 930 and the second insulating layer 940 are normal is applicable to the present invention.

Taking the refrigerator 100 shown in fig. 1A as an example, a process of locating a target object will be specifically described.

As shown in fig. 1A, the RFID read/write unit 170 responds to a command triggered by a user to determine the position of a target object in a refrigerator, where the command triggered by the user to determine the position of the target object in the refrigerator may be a command to take the target object out of the refrigerator or a command to store the target object in the refrigerator; transmitting an electromagnetic wave signal into the cavity of the refrigerator 100 through the RFID antenna 161, the RFID antenna 162, and the RFID antenna 163; when the electromagnetic wave signal emitted by the RFID antenna covers the RFID label of the target object, the RFID label of the target object is activated, and an activation signal is returned; the RFID read-write unit 170 detects an activation signal returned by the RFID tag of the target object, and sends the RFID antenna and the RFID tag corresponding to the activation signal to the signal processing unit 180;

if a target object a and a target object B are placed in the cavity of the refrigerator 100, the RFID tag corresponding to the target object a is an RFID tag, and the RFID tag corresponding to the target object B is an RFID tag B; if the signal processing unit 180 determines that the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag a includes the RFID antenna 161, the RFID antenna 162, and the RFID antenna 163 according to the RFID antenna and the RFID tag corresponding to the activation signal returned by the RFID tag a, it further determines that the RFID tag a is located in the cabin 151, that is, the target object a is located in the cabin 151, according to the RFID antenna set corresponding to the cabin 151 includes the RFID antenna 161, the RFID antenna 162, and the RFID antenna 163;

similarly, if the signal processing unit 180 determines that the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag B is the RFID antenna 163 based on the RFID antenna corresponding to the activation signal returned by the RFID tag B and the RFID tag, it further determines that the RFID tag B is located in the compartment 153, that is, the target object B is located in the compartment 153, based on the RFID antenna 163 included in the RFID antenna set corresponding to the compartment 153.

Alternatively, after determining that the target object a is located in the cabin 151 and the target object B is located in the cabin 153, the correspondence between the target object a and the cabin 151 and the correspondence between the target object B and the cabin 153 may be established and stored.

In implementation, the command triggered by the user to determine the position of the target object in the refrigerator in the embodiment of the present invention may be triggered when the user takes the target object out of the refrigerator, or when the user stores the target object in the refrigerator.

The refrigerator responds to a command which is triggered by a user and used for determining the position of a target object in the refrigerator, and positions the position of the target object in real time; or the refrigerator periodically positions the target object stored in the refrigerator, stores the corresponding relation between the target object and the cabin where the target object is located, and obtains the updated corresponding relation; and the refrigerator responds to a command for determining the position of the target object in the refrigerator triggered by the user, and positions the position of the target object according to the stored updated corresponding relation. For the above two embodiments, two optional application scenarios are described below.

As shown in fig. 12, an embodiment of the present invention provides an optional application scenario, which includes a user 1201, a refrigerator 1200, and a display screen 1210 disposed on the door 120, where the display screen 1210 is provided with a microphone 1220 and a speaker 1230.

The user 1201 starts a display screen 1210 in the refrigerator 1200, and the user 1201 triggers a command for determining a target object in the refrigerator 1200 through the display screen 1210; for example, the user 1201 inputs a corresponding voice message, and the microphone 1220 collects the voice message input by the user 1201 and triggers a command for determining that the target object is in the refrigerator 1200; the refrigerator 1200 responds to a command for determining the position of a target object in the refrigerator 1200 triggered by the user 1201, transmits an electromagnetic wave signal to the cavity of the refrigerator 1200 through each RFID antenna, detects an activation signal returned by the RFID tag of the target object, and determines the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag according to the activation signal; the refrigerator 1200 determines the cabin where the target object is located according to the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag and the RFID antenna sets corresponding to the cabins; the refrigerator 1200 plays a message prompting that the target object is in the cabin through the speaker 1230.

As shown in fig. 13, an alternative application scenario provided in the embodiment of the present invention includes a user 1301, a refrigerator 1200, and a display screen 1210 disposed on the door 120, wherein a microphone 1220 and a speaker 1230 are disposed in the display screen 1210.

The refrigerator 1200 transmits electromagnetic wave signals into the cavity of the refrigerator through each RFID antenna according to a preset period, detects an activation signal returned by the RFID tag of an object stored in the refrigerator 1200, and determines the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag according to the activation signal; the refrigerator 1200 determines the cabin where the object stored in the refrigerator 1200 is located according to the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag and the RFID antenna sets corresponding to the cabins, and stores the correspondence between the object and the cabin where the object is located, to obtain an updated correspondence; the user 1301 starts a display screen 1210 in the refrigerator 1200, and the user 1301 triggers a command for determining a target object in the refrigerator 1200 through the display screen 1210; for example, the user 1301 inputs a corresponding voice message, the microphone 1220 collects the voice message input by the user 1201, and a command for determining that the target object is in the refrigerator 1200 is triggered; the refrigerator 1200 responds to a command for determining the position of the target object in the refrigerator 1200 triggered by the user 1301, obtains the corresponding relationship between the updated object and the cabin where the object is located, and determines the cabin where the target object is located according to the updated corresponding relationship; the refrigerator 1200 plays a message prompting that the target object is in the cabin through the speaker 1230.

As shown in fig. 14, a schematic flow chart of a positioning method provided in an embodiment of the present invention is applied to a refrigerator having multiple RFID antennas, and includes the following steps:

step S1401, responding to a command which is triggered by a user and used for determining the position of a target object in the refrigerator, and transmitting electromagnetic wave signals into the cavity of the refrigerator through each RFID antenna; the refrigerator comprises a machine shell, a first door and a second door, wherein the machine shell is provided with an opening; the door body is used for opening and closing the opening, and the shell and the door body are matched to form a cavity; a plurality of RFID antennas are arranged in the cavity; a plurality of non-shielding partition plates are arranged in the cavity, and the cavity is divided into a plurality of cabins by the partition plates; a plurality of RFID antennas are respectively arranged in each cabin; each cabin corresponds to one RFID antenna set, the RFID antenna sets corresponding to the cabins comprise RFID antennas capable of covering the cabins by emitted electromagnetic wave signals, and the RFID antenna sets corresponding to different cabins are different;

step S1402, detecting an activation signal returned by the RFID label of the target object, and determining the RFID antenna corresponding to the electromagnetic wave signal received by the RFID label according to the activation signal; the activation signal is returned after the RFID label of the target object receives the electromagnetic wave signal;

step S1403, determining the cabin where the target object is located according to the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag and the RFID antenna set corresponding to each cabin.

As shown in fig. 15, an overall flowchart of a positioning method provided in an embodiment of the present invention includes the following steps:

step S1501, the refrigerator responds to a command for determining the position of a target object in the refrigerator triggered by a user, and electromagnetic wave signals are transmitted into a cavity of the refrigerator through each RFID antenna;

step S1502, the refrigerator receives activation signals returned by RFID tags of all objects in the refrigerator through all RFID antennas;

the activation signal comprises identification information of an RFID label returning to the activation signal and identification information of an RFID antenna corresponding to the electromagnetic wave signal received by the RFID label;

for example, the identification information of the RFID tag may be an Electronic Code (EPC) of the tag;

s1503, the refrigerator screens out an activation signal returned by the RFID label of the target object from the received activation signal through the RFID reading and writing unit;

step S1504, the refrigerator determines an RFID antenna set corresponding to the electromagnetic wave signal received by the RFID tag of the target object according to the activation signal returned by the RFID tag of the target object;

step S1505, the refrigerator determines the cabin where the target object is located according to the RFID antenna set corresponding to the electromagnetic wave signal received by the RFID tag of the target object and the RFID antenna set corresponding to each cabin.

As shown in fig. 16, an overall flowchart of another positioning method provided in the embodiment of the present invention includes the following steps:

step S1601, the refrigerator emits electromagnetic wave signals into a cavity of the refrigerator through each RFID antenna according to a preset period;

step S1602, the refrigerator detects an activation signal returned after the RFID tag of the object stored in the refrigerator receives the electromagnetic wave signal, and determines an RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag according to the activation signal;

step S1603, the refrigerator determines the cabin where the object stored in the refrigerator is located according to the RFID antenna corresponding to the electromagnetic wave signal received by the RFID tag and the RFID antenna set corresponding to each cabin;

step S1604, the refrigerator establishes a corresponding relation between the object and the cabin where the object is located according to the determined cabin where the object stored in the refrigerator is located, and obtains the updated corresponding relation between the object and the cabin where the object is located;

step S1605, the refrigerator responds to a command which is triggered by a user and used for determining the access position of the target object in the refrigerator, and the corresponding relation between the updated object and the cabin where the object is located is obtained;

step S1606, the refrigerator determines the cabin where the target object is located according to the updated correspondence between the object and the cabin where the object is located.

Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program is used to implement the steps of any one of the methods described above when executed by a processor.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of this invention, and these changes and modifications are within the scope of this invention.

Claims

1. A refrigerator is characterized in that a refrigerator body is provided with a refrigerator door,

the refrigerator includes a cabinet having an opening;

the door body is used for opening and closing the opening, and the shell and the door body are matched to form a cavity;

2. The refrigerator according to claim 1, wherein the refrigerator further comprises an RFID read-write unit and a signal processing unit;

3. The refrigerator of claim 2, wherein the RFID antenna comprises an electromagnetic wave emitting unit and an electromagnetic wave absorbing layer;

the electromagnetic wave transmitting unit is used for transmitting an electromagnetic wave signal outwards under the control of the RFID reading and writing unit;

4. The refrigerator according to claim 3, wherein a first insulating layer is further included between the electromagnetic wave emitting unit and the electromagnetic wave absorbing layer.

5. The refrigerator of claim 4, further comprising a second insulating layer between the electromagnetic wave absorption layer and the mounting surface of the RFID antenna.

6. The refrigerator of claim 5, further comprising a power supply unit and a detection unit; a first insulation detection layer is further arranged between the electromagnetic wave emission unit and the first insulation layer, and a second insulation detection layer is further arranged between the electromagnetic wave absorption layer and the second insulation layer;

the power supply unit is connected with the first insulation detection layer and the second insulation detection layer respectively and used for supplying power to the first insulation detection layer and the second insulation detection layer;

7. The refrigerator according to any one of claims 1 to 6, wherein the cabinet includes an electromagnetic wave signal shielding layer.

8. A positioning method is characterized by being applied to a refrigerator with a plurality of RFID antennas, and the method comprises the following steps:

detecting an activation signal returned by the RFID label of the target object, and determining an RFID antenna corresponding to an electromagnetic wave signal received by the RFID label according to the activation signal; wherein the activation signal is returned after the RFID label of the target object receives an electromagnetic wave signal;

9. The method of claim 8, wherein the set of RFID antennas corresponding to each of the compartments is generated according to:

10. A computer-readable storage medium, having stored therein computer program instructions, which when run on a computer, cause the computer to perform the method of claim 8 or 9.