A refrigerator and a bluetooth pairing method

Abstract

The application discloses a refrigerator and a Bluetooth pairing method. The refrigerator comprises a refrigerator control component and at least one Bluetooth function component. The interface between the refrigerator control component and the Bluetooth function component is only communicated through a power line. A power supply unit in the refrigerator control component, a switch circuit and a second Bluetooth unit in the Bluetooth function component form a power supply branch through the power line. A control unit and the second Bluetooth unit form a data communication branch through the power line. In response to a Bluetooth pairing instruction, the switch circuit is controlled to be disconnected to disconnect the power supply branch. A Bluetooth pairing request and device information of a first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch to enable the second Bluetooth unit to complete Bluetooth pairing operation with the first Bluetooth unit. The application can realize the interaction of pairing information between the refrigerator and the Bluetooth function component, and improves the Bluetooth pairing efficiency and accuracy without manual pairing and authentication.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator control, and in particular to a refrigerator and a Bluetooth pairing method. BACKGROUND

[0002] More and more intelligent refrigerators integrate intelligent components for specific functions, such as a weighing tray, a camera, a printing module, and an odor sensing device. The data collected by these devices is uploaded to the cloud through the WiFi module of the refrigerator. Therefore, these devices need to implement communication and data transmission with the WiFi module of the refrigerator.

[0003] For how to transmit the data of the intelligent components to the WiFi module of the refrigerator, the prior art generally uses Bluetooth communication technology. The WiFi module of the refrigerator is configured with a Bluetooth communication function, and the intelligent components are equipped with a Bluetooth module. The intelligent components are paired and connected with the WiFi module through Bluetooth to realize data transmission.

[0004] However, the inventors have found that the prior art has at least the following problems: Currently, pairing between Bluetooth devices is generally performed through a mobile phone and manual operation for pairing and authentication. This pairing method has the disadvantage that the information of the paired devices needs to be confirmed manually. For certain specific application scenarios, such as a Bluetooth device being a component fixed inside a refrigerator, the user cannot directly view the pairing device information, which brings difficulties to pairing the Bluetooth device. SUMMARY

[0005] The purpose of the embodiments of the present application is to provide a refrigerator and a Bluetooth pairing method, which can realize the interaction of pairing information between the refrigerator and a Bluetooth functional component, without the need for manual pairing and authentication, thereby improving the efficiency and accuracy of Bluetooth pairing.

[0006] To achieve the above purpose, the embodiments of the present application provide a refrigerator, comprising:

[0007] a refrigerator control component and at least one Bluetooth functional component, the refrigerator control component being provided with a first Bluetooth unit, a control unit, a switching circuit, and a power supply unit; and the Bluetooth functional component being provided with a second Bluetooth unit;

[0008] only a power line is connected between the interface of the refrigerator control component and the interface of the Bluetooth functional component, the power supply unit, the switching circuit, and the second Bluetooth unit form a power supply branch through the power line, and the control unit and the second Bluetooth unit form a data communication branch through the power line;

[0009] the control unit is configured to:

[0010] in response to a Bluetooth pairing instruction, control the switching circuit to be disconnected, so that the power supply branch is disconnected.

[0011] acquire device information of the first Bluetooth unit and generate a Bluetooth pairing request;

[0012] send the Bluetooth pairing request and the device information of the first Bluetooth unit to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit.

[0013] As an improvement of the above scheme, the input end of the switch circuit is connected with the power supply unit, the output end of the switch circuit is connected with the interface of the refrigerator control component, and the power supply end of the second Bluetooth unit is connected with the interface of the Bluetooth function component, so that the power supply unit, the switch circuit and the second Bluetooth unit form the power supply branch;

[0014] The control unit is connected with the output end of the switch circuit through the data communication line, and the data transceiver end of the second Bluetooth unit is connected with the interface of the Bluetooth function component through the data communication line, so that the control unit and the second Bluetooth unit form the data communication branch;

[0015] The control unit is also connected with the control end of the switch circuit and the first Bluetooth unit through the data communication line respectively.

[0016] As an improvement of the above scheme, the switch circuit includes a triode, a first resistor, a second resistor and a third resistor, the input end of the triode is connected with the power supply unit, the output end of the triode is connected with the interface of the refrigerator control component, the first end of the first resistor is connected with the output end of the triode, the second end of the first resistor is connected with the control unit, the first end of the second resistor is connected with the control end of the triode, the second end of the second resistor is connected with the control unit, the first end of the third resistor is connected with the input end of the triode, and the second end of the third resistor is connected with the control end of the triode.

[0017] As an improvement of the above scheme, the Bluetooth function component further includes a single-phase conduction circuit and a power storage unit; the power supply end of the second Bluetooth unit is connected with the interface of the Bluetooth function component through the power storage unit and the single-phase conduction circuit in sequence, and the power storage unit is used for supplying power to the Bluetooth function component when the power supply branch is disconnected.

[0018] As an improvement of the above scheme, the single-phase conduction circuit is a diode, the input end of the diode is connected with the interface of the Bluetooth function component, and the output end of the diode is connected with the power storage unit.

[0019] As an improvement of the above-mentioned solution, the switch circuit is controlled to be turned off in response to the Bluetooth pairing instruction, so as to disconnect the power supply branch, in particular:

[0020] In response to the Bluetooth pairing instruction, a turn-off control instruction is sent to the switch circuit through the control end of the switch circuit, so that the switch circuit is in an off state after receiving the turn-off control instruction, thereby disconnecting the power supply branch.

[0021] As an improvement of the above-mentioned solution, the Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit, in particular:

[0022] The control unit sends the Bluetooth pairing request and the device information of the first Bluetooth unit to each second Bluetooth unit through the data communication branch, so that each second Bluetooth unit waits for a preset delay time corresponding to itself after receiving the Bluetooth pairing request and the device information, and then sends its own device information to the control unit through the data communication branch; wherein the preset delay time corresponding to each second Bluetooth unit is different.

[0023] The control unit sends the device information of the second Bluetooth unit to the first Bluetooth unit to complete the Bluetooth pairing operation between the first Bluetooth unit and the second Bluetooth unit.

[0024] As an improvement of the above-mentioned solution, the Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit, in particular:

[0025] The control unit sends the Bluetooth pairing request, the device information of the first Bluetooth unit, and the device information of the second Bluetooth unit that has been paired with the first Bluetooth unit to each second Bluetooth unit through the data communication branch, so that each second Bluetooth unit determines whether it is an unpaired device after receiving the Bluetooth pairing request and the device information, and waits for a preset delay time corresponding to itself when it is determined to be an unpaired device, and then sends its own device information to the control unit through the data communication branch; wherein the preset delay time corresponding to each second Bluetooth unit is different.

[0026] The control unit sends the device information of the second Bluetooth unit to the first Bluetooth unit to complete the Bluetooth pairing operation between the first Bluetooth unit and the second Bluetooth unit.

[0027] As an improvement of the above scheme, each of the second Bluetooth units can record the device information of other second Bluetooth units in the Bluetooth pairing operation process, and complete the Bluetooth pairing operation with other second Bluetooth units.

[0028] The embodiment of the present application also provides a Bluetooth pairing method applied to a refrigerator, the refrigerator comprising: a refrigerator control component and at least one Bluetooth function component, the refrigerator control component being provided with a first Bluetooth unit, a control unit, a switch circuit and a power supply unit; the Bluetooth function component being provided with a second Bluetooth unit;

[0029] The interface between the refrigerator control component and the Bluetooth function component is only connected through a power line, the power supply unit, the switch circuit and the second Bluetooth unit form a power supply branch through the power line, and the control unit and the second Bluetooth unit form a data communication branch through the power line.

[0030] The method is executed by the control unit and comprises the following steps.

[0031] In response to a Bluetooth pairing instruction, the switch circuit is controlled to be disconnected, so that the power supply branch is disconnected.

[0032] Device information of the first Bluetooth unit is acquired, and a Bluetooth pairing request is generated.

[0033] The Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit.

[0034] Compared with the prior art, the refrigerator and the Bluetooth pairing method of the refrigerator disclosed by the present application, the refrigerator comprises a refrigerator control component and is provided with a plurality of Bluetooth function components, and the Bluetooth function component and the refrigerator are only connected through a power line, the refrigerator supplies power for the Bluetooth function component, solves the pollution problem and the short service life problem possibly caused by the battery power supply of the Bluetooth function component, and in particular solves the problem that the Bluetooth function component cannot be used in a frozen environment; when there is a data transceiving demand, the power line between the refrigerator control component and the Bluetooth function component is reused as a data communication line, so that the problem of multiple connection lines, complex lines, inconvenient installation and fixation and difficulty in passing through the door hinge hole is avoided, and the Bluetooth pairing mode of the embodiment of the present application solves the problem in the prior art that the Bluetooth pairing needs to be manually assisted by a mobile device such as a mobile phone, so that when the Bluetooth function component is embedded in the refrigerator, the user cannot accurately acquire the device information, pairing is difficult, the pairing information between the refrigerator and the Bluetooth function component can be interacted, manual pairing and authentication are not needed, and the Bluetooth pairing efficiency and accuracy are improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic diagram of a refrigerator provided by an embodiment of the present application;

[0036] Figure 2 is a structural schematic diagram of a refrigerator control component in an embodiment of the present application;

[0037] Figure 3 is a structural schematic diagram of a Bluetooth function component in an embodiment of the present application;

[0038] Figure 4 is a connection structural schematic diagram of a refrigerator control component and a Bluetooth function component in an embodiment of the present application;

[0039] Figure 5 is a flow schematic diagram of a Bluetooth pairing operation in a first implementation of an embodiment of the present application;

[0040] Figure 6 is a structural schematic diagram of a switching circuit in an embodiment of the present application;

[0041] Figure 7 is a preferred connection structural schematic diagram of a refrigerator control component and a Bluetooth function component in an embodiment of the present application;

[0042] Figure 8 is a structural schematic diagram of a single-phase conduction circuit in an embodiment of the present application;

[0043] Figure 9 is a flow schematic diagram of a Bluetooth pairing operation in a second implementation of an embodiment of the present application;

[0044] Figure 10 is a flow schematic diagram of a Bluetooth pairing operation in a third implementation of an embodiment of the present application. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0046] Referring to Figure 1 is a structural schematic diagram of a refrigerator provided by an embodiment of the present application. The present application provides a refrigerator 10, which includes at least one storage room, such as a refrigeration room and / or a freezing room, for storing items with preservation or freezing requirements. The refrigerator further includes a refrigeration system for performing refrigeration operation of the refrigerator.

[0047] It needs to be explained that the refrigerator carries out refrigeration operation through the refrigeration system, and provides cold energy transmission to the storage chamber, so that the storage chamber is maintained at a constant low temperature. Specifically, the refrigeration system of the refrigerator in the embodiment of the application is composed of a compressor, a condenser, a drying filter, a capillary tube and an evaporator, and the working composition of the refrigeration system includes compression process, condensation process, throttling process and evaporation process.

[0048] In the compression process, the refrigerator power cord is plugged in, and the compressor starts to work when the refrigerator has a refrigeration demand. The low-temperature and low-pressure refrigerant is sucked into the compressor cylinder, compressed into high-temperature and high-pressure superheated gas, and then discharged into the condenser. In the condensation process, the high-temperature and high-pressure refrigerant gas is cooled by the condenser, and the temperature continuously decreases, gradually cooled into saturated vapor at room temperature and high pressure, and further cooled into saturated liquid, and the temperature no longer decreases. At this time, the temperature is called the condensation temperature. The pressure of the refrigerant in the entire condensation process is almost unchanged. In the throttling process, the saturated liquid refrigerant after condensation flows into the capillary tube after filtering out water and impurities by the drying filter, and is throttled and decompressed by the capillary tube. The refrigerant becomes wet steam at room temperature and low pressure. In the evaporation process, heat is absorbed in the evaporator to vaporize, not only reducing the temperature of the evaporator and its surroundings, but also making the refrigerant into a low-temperature and low-pressure gas. The refrigerant coming out of the evaporator returns to the compressor again, and the above process is repeated to transfer the heat in the refrigerator to the air outside the box, achieving the purpose of refrigeration.

[0049] The refrigerator 10 further comprises a refrigerator control component 11 and at least one Bluetooth function component 12, as shown in Figure 2 and Figure 3 , Figure 2 is a structural schematic diagram of the refrigerator control component in the embodiment of the application, Figure 3 is a structural schematic diagram of the Bluetooth function component in the embodiment of the application, the refrigerator control component 11 is provided with a first Bluetooth unit 111, a control unit 112, a switching circuit 113 and a power supply unit 114; the Bluetooth function component 12 is provided with a second Bluetooth unit 121.

[0050] The first Bluetooth unit 111 and the second Bluetooth unit 121 can be connected through Bluetooth pairing with other Bluetooth devices to realize data interaction through Bluetooth communication mode; the control unit 112 is an MCU, which can realize data collection, calculation, generation of control instructions and other operations; the power supply unit 114 can provide power for each component in the refrigerator, usually using low-voltage direct current power supply (5V or 12V, etc.), and the switching circuit 113 is used to realize the on-off control of the power supply loop of the power supply unit 114.

[0051] Preferably, the refrigerator further comprises a WiFi unit for realizing data interaction with a cloud server through a WiFi communication mode, and the WiFi unit can be integrated with the first Bluetooth unit 111 to form a WiFi+Bluetooth communication unit.

[0052] It should be noted that the number of the Bluetooth function components 12 is at least one, that is, one, two or more, and each Bluetooth function component can be used to realize different functions and communicate with other components through the second Bluetooth unit 121. For example, the Bluetooth function component 12 is a weighing tray, a camera, a printing device or a smell sensing device.

[0053] Referring to Figure 4 is a connection structure diagram of the refrigerator control component and the Bluetooth function component in the embodiment of the application. In the embodiment of the application, only the power line (including the live wire and the ground wire) is connected between the interface K1 of the refrigerator control component 11 and the interface K2 of the Bluetooth function component 12, the power supply unit 114, the switching circuit 113 and the second Bluetooth unit 121 form a power supply branch through the power line, and the control unit 112 and the second Bluetooth unit 121 form a data communication branch through the power line.

[0054] Specifically, the input end S in of the switching circuit 113 is connected with the power supply unit 114, the output end S out of the switching circuit 113 is connected with the interface K1 of the refrigerator control component, the interface K1 of the refrigerator control component 11 and the interface K2 of the Bluetooth function component 12 are connected through the power line, the power supply end B V of the second Bluetooth unit 121 is connected with the interface K2 of the Bluetooth function component, so that the power supply unit 114, the switching circuit 113 and the second Bluetooth unit 121 form the power supply branch.

[0055] The control unit 112 is connected with the output end S out of the switching circuit 113 through the data communication line, the data transceiver end B RX of the second Bluetooth unit 121 is connected with the interface K2 of the Bluetooth function component through the data communication line, so that the control unit 112 and the second Bluetooth unit 121 form the data communication branch, and the control unit 112 is further connected with the control end S con of the switching circuit 113 and the data transceiver end of the first Bluetooth unit 111 through the data communication line respectively.

[0056] When the power supply branch is turned on, the power supply unit 114 supplies power to the Bluetooth function component 12 through the switch circuit 113, the power supply line between the interfaces K1 and K2 in sequence, that is, supplies power to the second Bluetooth unit 121, and supplies power to the Bluetooth function component through the refrigerator, thereby solving the pollution problem and the short service life problem possibly caused by the battery power supply of the Bluetooth function component, and especially solving the problem that the Bluetooth function component cannot be used in a frozen environment. For the data communication branch, when there is a data transceiving demand, the control unit 112 performs data interaction with the second Bluetooth unit through the power supply line between the interfaces K1 and K2, that is, multiplexes the power supply line between the refrigerator control component 11 and the Bluetooth function component 12 as a data communication line, thereby avoiding the extra line connection between the refrigerator and the Bluetooth function component, and solving the problems of multiple connection lines, complex line, inconvenient installation and fixation, and difficulty in passing through the door body hinge hole.

[0057] Referring to Figure 5 is a flowchart of the Bluetooth pairing operation in the first embodiment of the application, and the control unit 112 is configured to perform the following steps:

[0058] In response to the Bluetooth pairing instruction, the switch circuit is controlled to be turned off, so that the power supply branch is turned off.

[0059] The device information of the first Bluetooth unit is acquired, and a Bluetooth pairing request is generated.

[0060] The Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit.

[0061] The second Bluetooth unit 121 is configured to perform the following steps:

[0062] According to the Bluetooth pairing request and the device information of the first Bluetooth unit, the Bluetooth pairing operation between the second Bluetooth unit and the first Bluetooth unit is completed.

[0063] In the embodiment of the present application, by default, the switch circuit 113 is in an on state, that is, the power supply branch is on, and the power supply unit 114 supplies power to each of the Bluetooth functional components 12. When the control unit 112 of the refrigerator receives a Bluetooth pairing instruction, in response to the Bluetooth pairing instruction, the control unit 112 controls the switch circuit 113 to be off, so that the power supply branch is disconnected, and no voltage output is provided during the pairing process. The control unit generates a Bluetooth pairing request and obtains the device information of the first Bluetooth unit 111, such as the device MAC, the device serial number, or other information identifying the identity of the device, through the data communication line between the first Bluetooth unit 111. The power supply line between the interfaces K1 and K2 is multiplexed as part of the communication line in the data communication branch, and the control unit 112 sends the Bluetooth pairing request and the device information of the first Bluetooth unit 111 to the second Bluetooth unit 121 through the data communication branch. After the second Bluetooth unit 121 obtains the Bluetooth pairing request and the device information of the first Bluetooth unit 111, it performs a Bluetooth pairing operation. After the Bluetooth pairing operation between the first Bluetooth unit 111 and the second Bluetooth unit 121 is completed, the first Bluetooth unit 111 opens the Bluetooth communication permission, allowing the Bluetooth functional components 12 that have passed the Bluetooth pairing operation to perform data transmission with themselves.

[0064] It should be noted that the Bluetooth pairing instruction can be automatically initiated when the refrigerator is powered on for the first time, or it can be initiated by manual operation by the user, and the Bluetooth pairing instruction can be input through a pre-set human-computer interaction module. Corresponding to two application scenarios: the first is that when the refrigerator is powered on for the first time, the refrigerator performs a self-checking inventory of the Bluetooth functional components installed in the refrigerator; the second is to perform device pairing and addition when manually replacing or adding Bluetooth functional components.

[0065] As a preferred embodiment, the embodiment is implemented on the basis of the above-mentioned embodiment, and in response to the Bluetooth pairing instruction, the switch circuit is controlled to be off, so that the power supply branch is disconnected, specifically:

[0066] In response to the Bluetooth pairing instruction, a disconnection control instruction is sent to the switch circuit through the control end of the switch circuit, so that the switch circuit is in an off state after receiving the disconnection control instruction, so as to disconnect the power supply branch.

[0067] The refrigerator comprises a refrigerator control component, and is provided with a plurality of Bluetooth function components, and only a power line is connected between the Bluetooth function components and the refrigerator, the refrigerator supplies power to the Bluetooth function components, the pollution problem and the short service life problem caused by battery power supply of the Bluetooth function components are solved, and in particular, the problem that the Bluetooth function components cannot be used in a refrigeration environment is solved; when data transmission and reception is required, the power line between the refrigerator control component and the Bluetooth function component is reused as a data communication line, so that the problem of multiple connection lines, complex lines, inconvenient installation and fixation and difficulty in passing through the door hinge hole is avoided, and the Bluetooth pairing mode of the embodiment of the application is adopted, so that the problem that in the prior art, Bluetooth pairing needs to be manually assisted by a mobile device such as a mobile phone, so that when the Bluetooth function component is embedded in the refrigerator, it is difficult for a user to accurately obtain device information, and pairing is difficult, is solved, the pairing information between the refrigerator and the Bluetooth function component can be interacted, manual pairing and authentication are not required, and the Bluetooth pairing efficiency and accuracy are improved.

[0068] As a preferred embodiment, refer to Figure 6 , which is a structural schematic diagram of a switch circuit in the embodiment of the application, the switch circuit 113 comprises a triode Q, a first resistor R1, a second resistor R2 and a third resistor R3, an input end of the triode Q is connected with the power supply unit 114, an output end of the triode Q is connected with an interface K1 of the refrigerator control component, a first end of the first resistor R1 is connected with the output end of the triode Q, a second end of the first resistor R1 is connected with the control unit 112, a first end of the second resistor R2 is connected with a control end of the triode Q, a second end of the second resistor R2 is connected with the control unit 112, a first end of the third resistor R3 is connected with the input end of the triode Q, and a second end of the third resistor R3 is connected with the control end of the triode Q.

[0069] That is, the input end of the triode Q serves as an input end S in of the switch circuit 113, the output end of the triode Q serves as an output end S out1 of the switch circuit 113 connected with the interface K1 of the refrigerator control component, the second end of the second resistor R2 serves as an output end S out2 of the switch circuit 113 connected with the control unit 112, and the second end of the third resistor R3 serves as a control end S con .

[0070] As a preferred embodiment, refer to Figure 7, is the preferred connection structure schematic diagram of the refrigerator control component and the Bluetooth function component in the embodiment of the application, on the basis of the above implementation, the Bluetooth function component 12 further includes a single-phase conduction circuit 122 and a power storage unit 123; the power supply end B of the second Bluetooth unit 121 is connected with the interface K2 of the Bluetooth function component 12 through the power storage unit 123 and the single-phase conduction circuit 122, and the power storage unit is used for supplying power for the Bluetooth function component 12 when the power supply branch is disconnected. V The power supply unit 114 is connected with the interface K2 of the Bluetooth function component 12 through the single-phase conduction circuit 122 and the power storage unit 123, and the power supply unit is used for supplying power for the Bluetooth function component 12 when the power supply branch is disconnected.

[0071] In the embodiment of the application, when the power supply branch is turned on, the power supply unit 114 charges the power storage unit 123 through the single-phase conduction circuit 122 and supplies power for the second Bluetooth unit 121. In the Bluetooth pairing process, the power supply unit 114 no longer provides voltage output in the pairing process, and the Bluetooth function component works by using the power storage unit.

[0072] Preferably, referring to Figure 8 , is the structure schematic diagram of the single-phase conduction circuit in the embodiment of the application, the single-phase conduction circuit 122 is a diode D, the input end of the diode D is connected with the interface K2 of the Bluetooth function component, and the output end of the diode D is connected with the power storage unit 123.

[0073] That is, the input end V in as the input end of the single-phase conduction circuit 122, and the output end V out as the output end of the single-phase conduction circuit 122.

[0074] As a preferred implementation, referring to Figure 9 , is the flow schematic diagram of the Bluetooth pairing operation in the second embodiment, the embodiment of the application is further implemented on the basis of any of the above embodiments, the Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit, and specifically:

[0075] The control unit sends the Bluetooth pairing request and the device information of the first Bluetooth unit to each second Bluetooth unit through the data communication branch, so that each second Bluetooth unit waits for a preset delay time corresponding to itself when receiving the Bluetooth pairing request and the device information, and then sends the device information of itself to the control unit through the data communication branch; wherein the preset delay time corresponding to each second Bluetooth unit is different;

[0076] The control unit sends the device information of the second Bluetooth unit to the first Bluetooth unit to complete the Bluetooth pairing operation between the first Bluetooth unit and the second Bluetooth unit.

[0077] In the embodiment, the control unit 112 of the refrigerator initiates a Bluetooth pairing request and sends the device information of the first Bluetooth unit 111 to each Bluetooth function component 12 connected through the power line. After the Bluetooth pairing request is sent, the data transceiver of the first Bluetooth unit of the refrigerator enters a data receiving state. After receiving the Bluetooth pairing request, the second Bluetooth unit 121 starts processing the Bluetooth pairing request and sends a pairing response.

[0078] It should be noted that since all the Bluetooth function components 12 are connected in parallel to the power line, they will simultaneously receive the pairing request initiated by the refrigerator. If two or more function components respond simultaneously, data conflict will occur on the power line. To avoid this situation, all Bluetooth function components are required to have a certain time delay before responding. The delay time is determined by the Bluetooth function component itself, and different Bluetooth function components (i.e., second Bluetooth units) have different delay times, which cannot exceed a certain time length. This time length can be determined in advance in other protocols or provided by the refrigerator.

[0079] For example, for the second Bluetooth unit A, the corresponding delay time is 1s, and for the second Bluetooth unit B, the corresponding delay time is 3s. When the second Bluetooth unit A and the second Bluetooth unit B both receive the Bluetooth pairing request and the device information sent by the control unit, the second Bluetooth unit A waits for 1s before sending its own device information. At this time, only the device information of the second Bluetooth unit A is transmitted on the power line, and the Bluetooth pairing between the second Bluetooth unit A and the first Bluetooth unit is completed. The second Bluetooth unit B will wait for 3s before sending its own device information. At this time, only the device information of the second Bluetooth unit B is transmitted on the power line, and the Bluetooth pairing between the second Bluetooth unit B and the first Bluetooth unit is completed, thereby avoiding data conflict on the power line.

[0080] Furthermore, each second Bluetooth unit 121 waits for the corresponding delay time and then sends its own device information to the control unit 112 through the data communication branch, which is forwarded to the first Bluetooth unit 111 by the control unit 112, thereby completing the Bluetooth pairing operation between the second Bluetooth unit 121 and the first Bluetooth unit 111.

[0081] As a preferred embodiment, refer to Figure 10is a flowchart of the Bluetooth pairing operation in the third embodiment of the present application, and the embodiment of the present application is further implemented on the basis of any of the above embodiments, wherein the Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit, specifically as follows:

[0082] The control unit sends the Bluetooth pairing request, the device information of the first Bluetooth unit, and the device information of the second Bluetooth unit paired with the first Bluetooth unit to each second Bluetooth unit through the data communication branch, so that each second Bluetooth unit judges whether it is an unpaired device when receiving the Bluetooth pairing request and the device information, and waits for a preset delay time corresponding to itself when judging that it is an unpaired device, and then sends the device information of itself to the control unit through the data communication branch; wherein the preset delay time corresponding to each second Bluetooth unit is different.

[0083] The control unit sends the device information of the second Bluetooth unit to the first Bluetooth unit, so as to complete the Bluetooth pairing operation between the first Bluetooth unit and the second Bluetooth unit.

[0084] In the embodiment of the present application, the control unit 112 of the refrigerator initiates a Bluetooth pairing request and sends the device information of the first Bluetooth unit 111 to each Bluetooth functional component 12 connected through the power line. In order to shorten the overall Bluetooth pairing process and avoid repeated pairing, the control unit 112 can also obtain the device information of the second Bluetooth unit which has completed the configuration with the first Bluetooth unit 111 in advance, and send the device information of the second Bluetooth unit which has been paired.

[0085] Specifically, the basic data interaction process of the Bluetooth pairing process is as follows:

[0086] (1) The refrigerator data transceiver is in a sending state, initiates a Bluetooth pairing request, and sends the device information of the first Bluetooth unit in the refrigerator control component through the power line, and also sends the device information of the second Bluetooth unit which has been paired.

[0087] (2) After the Bluetooth pairing request is sent, the refrigerator data transceiver enters a data receiving state.

[0088] (3) After receiving the Bluetooth pairing request, the Bluetooth functional component starts processing the instruction request, and then performs the corresponding operation after a certain time delay.

[0089] (4) When a certain Bluetooth function component does not have its own device information in the pairing data sent by the refrigerator, after the delay time ends and there is no other device on the power line sending data, the data transceiver of the Bluetooth function component is changed from the receiving state to the sending state, and the device information of the Bluetooth function component is sent. In addition to the device information and the corresponding instructions of the Bluetooth function component, the refrigerator device information and the function component device information sent by the refrigerator can be continuously retained. After the Bluetooth function component completes the pairing instruction, the data transceiver of the Bluetooth function component enters the receiving state.

[0090] (5) If a certain Bluetooth function component finds its own device information in the pairing data sent by the refrigerator, it will no longer perform pairing and will continue to maintain the data receiving state.

[0091] (6) During the pairing process, the refrigerator control component continuously turns off the power output switch circuit, and the Bluetooth function component relies on the energy storage unit for power storage. When the pairing process exceeds a certain time, the control unit of the refrigerator restores the power output switch circuit to the on state.

[0092] (7) The refrigerator control module determines whether there are still Bluetooth devices that have not completed pairing operation according to the received data, and if it is estimated that there are still devices that have not completed pairing, the power output switch circuit is turned off again, and the pairing operation is re-initiated according to the above pairing process.

[0093] As a preferred embodiment, each second Bluetooth unit can record the device information of other second Bluetooth units during the Bluetooth pairing operation, and complete the Bluetooth pairing operation with other second Bluetooth units.

[0094] In the embodiment of the application, the Bluetooth function component can also record the Bluetooth device information of other Bluetooth function components received during the pairing process, so that the Bluetooth function components can directly transmit data through Bluetooth communication without the need for forwarding through the refrigerator control component. In some use cases, when a certain Bluetooth function component cannot communicate with the refrigerator control component through Bluetooth after successful pairing, data can also be forwarded to the refrigerator control module through other Bluetooth function components.

[0095] The Bluetooth pairing method of the embodiment of the application solves the problem in the prior art that Bluetooth pairing needs to be manually assisted by a mobile device such as a mobile phone, which makes it difficult for users to accurately obtain device information when the Bluetooth function component is embedded in the refrigerator, causing pairing difficulties. The Bluetooth pairing method of the embodiment of the application can realize the interaction of pairing information between the refrigerator and the Bluetooth function component, does not need manual pairing and authentication, and improves the Bluetooth pairing efficiency and accuracy.

[0096] The embodiment of the present application also provides a Bluetooth pairing method, which is applied to a refrigerator, and the refrigerator comprises a refrigerator control component and at least one Bluetooth function component, the refrigerator control component is provided with a first Bluetooth unit, a control unit, a switch circuit and a power supply unit, and the Bluetooth function component is provided with a second Bluetooth unit.

[0097] The interface between the refrigerator control component and the Bluetooth function component is only communicated through a power line, the power supply unit, the switch circuit and the second Bluetooth unit form a power supply branch through the power line, and the control unit and the second Bluetooth unit form a data communication branch through the power line.

[0098] The method is executed by the control unit and comprises the following steps.

[0099] In response to a Bluetooth pairing instruction, the switch circuit is controlled to be disconnected, so that the power supply branch is disconnected.

[0100] Device information of the first Bluetooth unit is acquired, and a Bluetooth pairing request is generated.

[0101] The Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes a Bluetooth pairing operation with the first Bluetooth unit.

[0102] As a preferred implementation, an input end of the switch circuit is connected with the power supply unit, an output end of the switch circuit is connected with the interface of the refrigerator control component, and a power supply end of the second Bluetooth unit is connected with the interface of the Bluetooth function component, so that the power supply unit, the switch circuit and the second Bluetooth unit form the power supply branch.

[0103] The control unit is connected with the output end of the switch circuit through a data communication line, and a data transceiving end of the second Bluetooth unit is connected with the interface of the Bluetooth function component through a data communication line, so that the control unit and the second Bluetooth unit form the data communication branch.

[0104] The control unit is also connected with the control end of the switch circuit and the first Bluetooth unit through data communication lines respectively.

[0105] As a preferred implementation, the switch circuit comprises a triode, a first resistor, a second resistor and a third resistor, an input end of the triode is connected with the power supply unit, an output end of the triode is connected with the interface of the refrigerator control component, a first end of the first resistor is connected with the output end of the triode, a second end of the first resistor is connected with the control unit, a first end of the second resistor is connected with a control end of the triode, a second end of the second resistor is connected with the control unit, a first end of the third resistor is connected with the input end of the triode, and a second end of the third resistor is connected with the control end of the triode.

[0106] As a preferred implementation, the Bluetooth function component further comprises a single-phase conduction circuit and a power storage unit; a power supply end of the second Bluetooth unit is connected with the interface of the Bluetooth function component through the power storage unit and the single-phase conduction circuit in sequence, and the power storage unit is configured to supply power to the Bluetooth function component when the power supply branch is disconnected.

[0107] As a preferred implementation, the single-phase conduction circuit is a diode, an input end of the diode is connected with the interface of the Bluetooth function component, and an output end of the diode is connected with the power storage unit.

[0108] As a preferred implementation, in response to a Bluetooth pairing instruction, the switch circuit is controlled to be disconnected, so that the power supply branch is disconnected, specifically:

[0109] In response to a Bluetooth pairing instruction, a disconnection control instruction is sent to the switch circuit through a control end of the switch circuit, so that the switch circuit is in a disconnected state after receiving the disconnection control instruction, and the power supply branch is disconnected.

[0110] As a preferred implementation, the Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit, specifically:

[0111] The control unit sends the Bluetooth pairing request and the device information of the first Bluetooth unit to each second Bluetooth unit through the data communication branch, so that each second Bluetooth unit waits for a preset delay time corresponding to itself after receiving the Bluetooth pairing request and the device information, and then sends the device information of itself to the control unit through the data communication branch; wherein the preset delay time corresponding to each second Bluetooth unit is different.

[0112] The control unit sends the device information of the second Bluetooth unit to the first Bluetooth unit, so as to complete the Bluetooth pairing operation between the first Bluetooth unit and the second Bluetooth unit.

[0113] As a preferred implementation, the Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit, specifically:

[0114] The control unit sends the Bluetooth pairing request, the device information of the first Bluetooth unit and the device information of the paired second Bluetooth unit of the first Bluetooth unit to each second Bluetooth unit through the data communication branch, so that each second Bluetooth unit determines whether it is an unpaired device when receiving the Bluetooth pairing request and the device information, and waits for a preset delay time corresponding to itself when determining that it is an unpaired device, and then sends the device information of itself to the control unit through the data communication branch; wherein the preset delay time corresponding to each second Bluetooth unit is different;

[0115] The control unit sends the device information of the second Bluetooth unit to the first Bluetooth unit to complete the Bluetooth pairing operation between the first Bluetooth unit and the second Bluetooth unit.

[0116] As a preferred implementation, each second Bluetooth unit can record the device information of other second Bluetooth units during the Bluetooth pairing operation and complete the Bluetooth pairing operation with other second Bluetooth units.

[0117] The technical means of the embodiment of the present application, the refrigerator comprises a refrigerator control component, and is provided with a plurality of Bluetooth function components, and only the power line is connected between the Bluetooth function component and the refrigerator, the refrigerator supplies power to the Bluetooth function component, solves the pollution problem and the short life problem that may be caused by the battery power supply of the Bluetooth function component, especially solves the problem that the Bluetooth function component cannot be used in a frozen environment; when there is a data transceiving demand, the power line between the refrigerator control component and the Bluetooth function component is reused as a data communication line, avoiding the use of an additional line connection between the refrigerator and the Bluetooth function component, which leads to the problems of multiple connection lines, complex lines, inconvenient installation and fixation, and difficulty in passing through the door hinge hole, and the Bluetooth pairing method of the embodiment of the present application can realize the interaction of pairing information between the refrigerator and the Bluetooth function component, without manual pairing and authentication, thereby improving the Bluetooth pairing efficiency and accuracy.

[0118] It should be noted that the Bluetooth pairing method provided by the embodiment of the present application is the same as all the flow steps performed by the control unit of the refrigerator of the above-mentioned embodiment, and the working principles and beneficial effects of the two are one-to-one correspondence, so they will not be repeated.

[0119] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing relevant hardware, and the program can be stored in a computer readable storage medium. When the program is executed, the program can include the processes of the above-mentioned embodiment methods. The storage medium can be a magnetic disc, an optical disc, a read-only memory (ROM), a random access memory (RAM), or the like.

[0120] The above is the preferred embodiment of the present application. It should be pointed out that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements are also considered to be within the scope of protection of the present application.

Claims

1. A refrigerator characterized by comprising: The application relates to a refrigerator control component and at least one Bluetooth function component, wherein the refrigerator control component is provided with a first Bluetooth unit, a control unit, a switching circuit and a power supply unit; the Bluetooth function component is provided with a second Bluetooth unit; only a power supply line is used to connect the interface of the refrigerator control component and the interface of the Bluetooth function component; the power supply unit, the switching circuit and the second Bluetooth unit form a power supply branch through the power supply line; the control unit and the second Bluetooth unit form a data communication branch through the power supply line; the control unit is used for: in response to a Bluetooth pairing instruction, controlling the switching circuit to be disconnected so as to disconnect the power supply branch; obtaining equipment information of the first Bluetooth unit and generating a Bluetooth pairing request; sending the Bluetooth pairing request and the equipment information of the first Bluetooth unit to the second Bluetooth unit through the data communication branch so that the second Bluetooth unit completes a Bluetooth pairing operation with the first Bluetooth unit; the input end of the switching circuit is connected with the power supply unit; the output end of the switching circuit is connected with the interface of the refrigerator control component; the power supply end of the second Bluetooth unit is connected with the interface of the Bluetooth function component, so that the power supply unit, the switching circuit and the second Bluetooth unit form the power supply branch; the control unit is connected with the output end of the switching circuit through a data communication line; the data transceiving end of the second Bluetooth unit is connected with the interface of the Bluetooth function component through a data communication line, so that the control unit and the second Bluetooth unit form the data communication branch; the control unit is also connected with the first Bluetooth unit and the control end of the switching circuit through data communication lines. The switching circuit comprises a triode, a first resistor, a second resistor and a third resistor; the input end of the triode is connected with the power supply unit; the output end of the triode is connected with the interface of the refrigerator control component; the first end of the first resistor is connected with the output end of the triode; the second end of the first resistor is connected with the control unit; the first end of the second resistor is connected with the control end of the triode; the second end of the second resistor is connected with the control unit; the first end of the third resistor is connected with the input end of the triode; the second end of the third resistor is connected with the control end of the triode. The Bluetooth function component further comprises a single-phase conduction circuit and a power storage unit; the power supply end of the second Bluetooth unit is connected with the interface of the Bluetooth function component through the power storage unit and the single-phase conduction circuit in sequence; the power storage unit is used for supplying power for the Bluetooth function component when the power supply branch is disconnected. The single-phase conduction circuit is a diode; the input end of the diode is connected with the interface of the Bluetooth function component; the output end of the diode is connected with the power storage unit. In response to the Bluetooth pairing instruction, the switching circuit is controlled to be disconnected so as to disconnect the power supply branch, specifically: ​ ​ ​ ​ ​ 2. The refrigerator according to claim 1, wherein, ​ 3. The refrigerator according to claim 1, wherein ​ 4. The refrigerator according to claim 3, wherein ​ 5. The refrigerator according to claim 1, wherein ​ In response to the Bluetooth pairing instruction, a disconnection control instruction is sent to the switch circuit through the control end of the switch circuit, so that the switch circuit is in a disconnected state after receiving the disconnection control instruction, thereby disconnecting the power supply branch.

6. The refrigerator according to claim 1, wherein The Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit, specifically: The control unit sends the Bluetooth pairing request and the device information of the first Bluetooth unit to each second Bluetooth unit through the data communication branch, so that each second Bluetooth unit waits for a preset delay time corresponding to itself after receiving the Bluetooth pairing request and the device information, and then sends the device information of itself to the control unit through the data communication branch; wherein the preset delay time corresponding to each second Bluetooth unit is different. The control unit sends the device information of the second Bluetooth unit to the first Bluetooth unit to complete the Bluetooth pairing operation between the first Bluetooth unit and the second Bluetooth unit.

7. The refrigerator according to claim 1, wherein The Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch, so that the second Bluetooth unit completes the Bluetooth pairing operation with the first Bluetooth unit, specifically: The control unit sends the Bluetooth pairing request, the device information of the first Bluetooth unit, and the device information of the second Bluetooth unit paired with the first Bluetooth unit to each second Bluetooth unit through the data communication branch, so that each second Bluetooth unit determines whether it is an unpaired device after receiving the Bluetooth pairing request and the device information, and waits for a preset delay time corresponding to itself when it is determined to be an unpaired device, and then sends the device information of itself to the control unit through the data communication branch; wherein the preset delay time corresponding to each second Bluetooth unit is different. The control unit sends the device information of the second Bluetooth unit to the first Bluetooth unit to complete the Bluetooth pairing operation between the first Bluetooth unit and the second Bluetooth unit.

8. The refrigerator according to claim 7, wherein Each second Bluetooth unit can record the device information of other second Bluetooth units during the Bluetooth pairing operation and complete the Bluetooth pairing operation with other second Bluetooth units.

9. A Bluetooth pairing method, characterized by, The refrigerator comprises a refrigerator control component and at least one Bluetooth function component, the refrigerator control component is provided with a first Bluetooth unit, a control unit, a switch circuit, and a power supply unit; the Bluetooth function component is provided with a second Bluetooth unit; Only the power supply line is connected between the interface of the refrigerator control component and the Bluetooth function component, the power supply unit, the switch circuit, and the second Bluetooth unit form a power supply branch through the power supply line, and the control unit and the second Bluetooth unit form a data communication branch through the power supply line; The method is executed by the control unit, comprising: In response to the Bluetooth pairing instruction, the switch circuit is controlled to be turned off to disconnect the power supply branch; Obtaining the device information of the first Bluetooth unit and generating a Bluetooth pairing request; The Bluetooth pairing request and the device information of the first Bluetooth unit are sent to the second Bluetooth unit through the data communication branch to enable the second Bluetooth unit to complete the Bluetooth pairing operation with the first Bluetooth unit; The input end of the switch circuit is connected with the power supply unit, the output end of the switch circuit is connected with the interface of the refrigerator control component, and the power supply end of the second Bluetooth unit is connected with the interface of the Bluetooth function component, so that the power supply unit, the switch circuit and the second Bluetooth unit form the power supply branch; The control unit is connected with the output end of the switch circuit through the data communication line, and the data transceiver end of the second Bluetooth unit is connected with the interface of the Bluetooth function component through the data communication line, so that the control unit and the second Bluetooth unit form the data communication branch; The control unit is also connected with the control end of the switch circuit and the first Bluetooth unit through the data communication line respectively.

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