CN113938865A - Terminal management system and method for refrigerator - Google Patents

Terminal management system and method for refrigerator Download PDF

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Publication number
CN113938865A
CN113938865A CN202110261301.XA CN202110261301A CN113938865A CN 113938865 A CN113938865 A CN 113938865A CN 202110261301 A CN202110261301 A CN 202110261301A CN 113938865 A CN113938865 A CN 113938865A
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CN
China
Prior art keywords
access terminal
refrigerator
terminal
electronic tag
antenna
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Pending
Application number
CN202110261301.XA
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Chinese (zh)
Inventor
彭红亮
刘兆祥
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Hisense Shandong Refrigerator Co Ltd
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Hisense Shandong Refrigerator Co Ltd
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Publication date
Application filed by Hisense Shandong Refrigerator Co Ltd filed Critical Hisense Shandong Refrigerator Co Ltd
Priority to CN202110261301.XA priority Critical patent/CN113938865A/en
Publication of CN113938865A publication Critical patent/CN113938865A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
    • G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/25—Maintenance of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The application discloses a terminal management system and a terminal management method for a refrigerator. The terminal management system comprises a main control device arranged on the refrigerator, a networking device arranged on the refrigerator and an access terminal arranged inside or outside the refrigerator. The networking equipment is used for automatically establishing a wireless network between the networking equipment and the access terminal. Wherein: the networking device is configured to: the method comprises the steps that a terminal searching request of a main control device for an access terminal can be responded, and a control instruction is sent to the access terminal through a wireless network; the access terminal is configured to: in response to the control instructions, corresponding actions are performed to prompt the location of the access terminal. According to the terminal management system and the method, the networking equipment is arranged to automatically establish the wireless network between the networking equipment and the access terminal, and the access terminal can respond to the control instruction sent by the networking equipment and execute corresponding action to prompt the position of the access terminal, so that management of articles inside and outside the refrigerator can be efficiently realized.

Description

Terminal management system and method for refrigerator
Technical Field
The application relates to the technical field of refrigerators, in particular to a terminal management system and method of a refrigerator.
Background
At present, the popular refrigerators in the market do not have the function of managing related articles of the refrigerators, food materials are managed in a manual recording and memorizing mode, the operation is complex, and time and labor are consumed. Nowadays, intelligent refrigerators develop rapidly, intelligent household concepts are also in depth, people seek higher and higher quality of food materials, but for management of refrigerator-related articles, an efficient solution is not provided in the industry to date.
Disclosure of Invention
The application aims to provide a terminal management system and a terminal management method for a refrigerator, which aim to solve the technical problems in the prior art that: how to realize efficient management to the articles inside and outside the refrigerator.
In order to solve the technical problem, the following technical scheme is adopted in the application:
the embodiment of the application provides a terminal management system of a refrigerator. The terminal management system comprises a main control device arranged on the refrigerator, a networking device arranged on the refrigerator and an access terminal arranged inside or outside the refrigerator. The networking equipment is used for automatically establishing a wireless network between the networking equipment and the access terminal. Wherein: the networking device is configured to: when the access terminal is in the router mode, the access terminal can respond to a terminal searching request of the main control equipment for the access terminal and send a control instruction to the access terminal through the wireless network; the access terminal is configured to: in response to the control instructions, corresponding actions are performed to prompt the location of the access terminal.
In some embodiments, the networking device is a bluetooth device configured to: when in coordinator mode, a wireless network between the Bluetooth device and the access terminal can be automatically established.
In some embodiments, after the networking device successfully establishes the wireless network with the access terminal, the access terminal jumps to the low power consumption mode and maintains heartbeat connection with the networking device.
In some embodiments, the access terminal is bound with a corresponding item and manages attribute information of the item, and the networking device is further configured to: responding to a query request for querying attribute information of the item, and sending a query instruction to the access terminal through the wireless network; the access terminal is further configured to: and responding to the query instruction, and sending the attribute information of the article to the networking equipment through the wireless network.
In some embodiments, the item is a food material, the attribute information of the food material includes a freshness date, and the main control device is further configured to: and carrying out expiration early warning reminding on the food materials at a preset time before the expiration of the freshness date of the food materials.
In some embodiments, the terminal management system further includes a reader disposed on the refrigerator, an electronic tag disposed inside the refrigerator, and antennas disposed on the refrigerator, respectively, where the electronic tag is bound with a corresponding article; the electronic tag is configured to: storing attribute information of the article; the antenna is configured to: and reading the label information under the control of the reader-writer.
In some embodiments, the number of the antennas is at least three, the antennas are respectively disposed at least three positions inside the refrigerator, and the reader/writer is further configured to: respectively sending position query signals to the electronic tag through the three antennas to obtain the distance between each antenna and the electronic tag; the main control device is further configured to obtain the specific position of the electronic tag according to the distance between each antenna and the electronic tag.
In some embodiments, the antenna is further configured to: sending a position query signal to the electronic tag under the control of the reader-writer, generating a first timestamp at the same time, and generating a second timestamp when the antenna receives a response signal returned by the electronic tag; the reader is configured to: and aiming at each antenna, acquiring a time difference through a first time stamp and a second time stamp read by the antenna, and acquiring the distance between each antenna and the electronic tag according to the time difference.
In some embodiments, the system further comprises a display device: the display device is connected with the main control device and is used for displaying a search result of the main control device aiming at the terminal search request of the access terminal.
The embodiment of the application also provides a terminal management method of the refrigerator, and the method is suitable for the terminal management system of any one of the embodiments. The method comprises the following steps: when the access terminal is in the router mode, the networking equipment responds to a terminal searching request of the main control equipment for the access terminal and sends a control instruction to the access terminal through the wireless network; in response to the control instructions, the access terminal performs corresponding actions to prompt the location of the access terminal.
According to the technical scheme, the method has at least the following advantages and positive effects:
according to the refrigerator terminal management system and method, the networking equipment is arranged to automatically establish the wireless network between the networking equipment and the access terminal, and the access terminal can respond to the control instruction sent by the networking equipment and execute corresponding action to prompt the position of the access terminal, so that management of articles inside and outside the refrigerator can be efficiently achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are 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 creative efforts.
Fig. 1 is a schematic structural view of a terminal management system of a refrigerator according to some embodiments of the present disclosure;
fig. 2 is a schematic structural view of a terminal management system of a refrigerator according to another embodiment of the present application;
fig. 3 is a schematic view of an internal structure of a refrigerator of a terminal management system including an antenna and an electronic tag according to some embodiments of the present disclosure;
fig. 4 is a flowchart illustrating a terminal management method of a refrigerator according to some embodiments of the present disclosure;
fig. 5 is a flowchart illustrating a terminal management method of a refrigerator according to another embodiment of the present application;
fig. 6 is a flowchart illustrating a specific usage scenario of a terminal management method for a refrigerator according to some embodiments of the present application.
The reference numerals are explained below:
1000. a refrigerator;
100. a terminal management system;
10. a master control device;
20. a networking device;
30. accessing a terminal;
40. a reader/writer;
50. an antenna;
51. a first antenna;
52. a second antenna;
53. a third antenna;
60. an electronic tag;
61. a first label;
62. a second label;
70. a display device;
80. a voice recognition module;
91. a mobile phone;
92. a router;
93. and a cloud server.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "communicate", "mount", "connect", and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, a terminal management system 100 of a refrigerator according to an embodiment of the present disclosure is provided. The terminal management system 100 includes a main control device 10 provided on the refrigerator 1000, a networking device 20 provided on the refrigerator 1000, and an access terminal 30 provided inside or outside the refrigerator. Networking device 20 is used to automatically establish a wireless network between networking device 20 and access terminal 30. Wherein: the networking device 20 is configured to: when in the router 92 mode, the control device can send a control instruction to the access terminal 30 through the wireless network in response to a terminal search request of the main control device 10 for the access terminal 30; the access terminal 30 is configured to: in response to the control instructions, corresponding actions are performed to prompt the location of the access terminal 30.
The terminal management system 100 of the refrigerator according to the embodiment of the present application sets the networking device 20 to automatically establish a wireless network between the networking device 20 and the access terminal 30, and the access terminal 30 can respond to a control instruction sent by the networking device 20 and perform a corresponding action to prompt the position of the access terminal 30, so that management of articles inside and outside the refrigerator can be efficiently achieved.
The following is a further description with reference to specific embodiments.
Referring to fig. 1, a terminal management system 100 is installed on a refrigerator. The terminal management system includes a main control device 10, a networking device 20, and an access terminal 30.
The main control device 10 is provided on the refrigerator, and particularly, the main control device 10 may be provided inside the refrigerator. The master device 10 may be a controller, processor, or the like.
The networking device 20 is provided on the refrigerator, and specifically, the networking device 20 may be provided inside the refrigerator. The networking device 20 may include a bluetooth module, a ZigBee (ZigBee) module, or a 433 communication module, etc. Wherein, the 433 communication module adopts 433MHz wireless communication technology to realize communication, and when the networking device 20 includes the 433 communication module, the 433 communication module can adopt 433MHz wireless communication technology to perform wireless communication with the access terminal 30. Networking device 20 is used to automatically establish a wireless network between networking device 20 and access terminal 30.
When the networking device 20 is in the router 92 mode, the networking device 20 can send a control instruction to the access terminal 30 through the wireless network in response to a terminal search request of the main control device 10 for the access terminal 30. Therefore, the main control equipment can initiate a terminal search request to the access terminal through the networking equipment and the wireless equipment so as to search the access terminal.
In some embodiments, the networking device 20 is a Bluetooth device that includes a Bluetooth module. When the bluetooth device is in the coordinator mode, the bluetooth device is able to automatically establish a wireless network between the bluetooth device and the access terminal 30.
The access terminal 30 may be located inside the refrigerator or outside the refrigerator. Preferably, the access terminal 30 may be disposed outside the refrigerator. The access terminal 30 may be a wireless terminal, and the access terminal 30 is communicatively connected to the networking device 20 by wireless communication. Access terminal 30 can perform corresponding actions to prompt the location of access terminal 30 in response to the control instructions.
In a specific embodiment, the access terminal 30 includes a wireless radio frequency communication module, and the wireless radio frequency communication module of the access terminal 30 can implement communication connection with the networking device 20. When the networking device 20 is a bluetooth device, the wireless radio frequency communication module of the access terminal 30 may be a bluetooth module, and at this time, the communicable distance between the access terminal 30 and the networking device 20 can reach 15-20 meters, and the communication read-write distance is far. In a communicable range, the access terminal 30 can respond to the control instruction, execute actions such as sound generation, vibration or light emission to prompt the position of the access terminal 30, for example, the access terminal 30 starts a sound generation device to generate sound, so that a user can conveniently find the access terminal 30 through the actions such as sound generation, vibration or light emission of the access terminal 30, and further find an article or food material bound to the access terminal 30, thereby realizing efficient finding of the article and the food material.
The access terminal 30 may further include a positioning module, the access terminal 30 may respond to the control instruction, the positioning module executes to acquire a positioning position and transmit the positioning position to the networking device 20 and to the main control device 10, and the main control device 10 transmits the positioning position of the access terminal 30 to the display device 70 of the refrigerator or the mobile phone client, so as to display the position of the access terminal 30, so that a user may conveniently find the access terminal through the position of the access terminal displayed on the display device of the refrigerator or the mobile phone client, thereby implementing efficient search of the access terminal and an article or food material bound by the access terminal.
The access terminal 30 may have a battery module built in. After networking device 20 successfully establishes a wireless network with access terminal 30, access terminal 30 may jump to a low power mode and maintain a heartbeat connection with networking device 20. Thus, power consumption of the access terminal 30 can be saved, and endurance of the access terminal 30 can be improved.
For example, after the bluetooth device 20 successfully establishes a wireless network with the access terminal 30, the networking device sends an identifier of the completion of networking to the access terminal 30, and after the access terminal 30 receives the identifier of the success of networking, the access terminal 30 adjusts its own system to a low power consumption mode, that is, the connection is maintained through a heartbeat mode agreed with the bluetooth device 20 at the refrigerator end.
The access terminal 30 binds with a corresponding article and manages attribute information of the article. Specifically, the access terminal 30 is bound with a corresponding item and stores attribute information of the item. The attribute information may include the item type, purchase date, quantity, freshness date, etc. of the item.
A query request may be initiated on the master device 10 to query attribute information of the item. The networking device 20 may send a query instruction to the access terminal 30 through the wireless network in response to a query request for querying attribute information of an item. The access terminal 30 may send attribute information of the item to the networking device 20 over the wireless network in response to the query instruction. Therefore, the attribute information of the articles or food materials bound by the access terminal can be efficiently inquired, so that the articles or food materials can be conveniently managed by a user according to the inquired information, for example, food materials with a relatively close freshness date can be searched for to be eaten as soon as possible.
In a preferred embodiment, the item may be a food material, and the attribute information of the food material may include a freshness date. The main control device 10 may perform expiration early warning reminding on the food material at a preset time before the expiration of the food material freshness date. Therefore, the user can be reminded before the expiration of the preservation period, so that the food materials can be prevented from being overdue before the expiration of the preservation period because the user does not find the food materials, the waste phenomenon of the food materials can be reduced, and the food materials can be effectively managed.
In some embodiments, it is preferable that the terminal management system 100 further includes a display device 70. The display device 70 may be provided on a refrigerator. Specifically, the display device 70 may be a display screen provided on a door of the refrigerator.
The display device 70 is connected to the main control device 10, and is configured to display a search result of the terminal search request of the access terminal 30 by the main control device 10. Therefore, the user can intuitively know the search result aiming at the access terminal through the display device on the refrigerator.
Further, the display screen may be a touch screen, include touch buttons on the display screen, or include physical buttons around the display screen. The terminal management system 100 of some embodiments of the present application may issue an instruction through the touch button, so that the main control device 10 initiates a terminal search request for the access terminal 30 or initiates a query request for querying attribute information of an item.
In some embodiments, the search result includes two response states, i.e., "terminal response successful" and "terminal response failed". After the main control device 10 initiates a terminal search request to the access terminal 30 through the networking device 20 and the wireless device, the access terminal 30 responds to the control instruction to perform actions such as sound generation, vibration or light emission, and the access terminal 30 sends a response success signal to the networking device 20, and after receiving the response success signal, the networking device 20 sends a control instruction to the display device 70, so that the display device 70 displays a relevant word and animation of "terminal response success" to prompt that the access terminal 30 has successfully responded.
In some embodiments, the terminal management system 100 may include a voice broadcasting module, after the main control device 10 initiates a terminal search request to the access terminal 30 through the networking device 20 and the wireless device, the access terminal 30 performs actions such as sound generation, vibration or light emission in response to a control instruction, and the access terminal 30 sends a response success signal to the networking device 20, and after receiving the response success signal, the networking device 20 may send a control instruction to the voice broadcasting module, so that the voice broadcasting module broadcasts a related voice of "terminal response success" to prompt that the access terminal 30 has successfully responded.
In some embodiments, the search results include a location of the access terminal 30 on a map. In response to the control instruction, the access terminal 30 acquires a positioning location through the positioning module, sends the positioning location to the networking device 20 and transmits the positioning location to the main control device 10, and the main control device 10 sends the positioning location of the access terminal 30 to the display device 70 of the refrigerator to display the location of the access terminal 30.
In some embodiments, the terminal management system 100 may further include a voice recognition module 80. The voice recognition module 80 may be provided on the refrigerator. Specifically, the voice recognition module 80 may be provided on a door of the refrigerator. The voice recognition module 80 is connected to the main control device 10, and is configured to receive a voice signal sent by a user, recognize and convert a specific voice signal into a corresponding terminal search request, and send the terminal search request to the main control device 10. Therefore, a user can generate a corresponding terminal searching request through voice control, so that the terminal can be searched, the user can conveniently search the terminal by using the terminal management system, and further voice interaction can be carried, so that the human-computer interaction experience is better.
In a further embodiment, referring to fig. 2, the terminal management system 100 may further include a router 92, a mobile terminal device 91, and a cloud server 93.
The terminal management system 100 may configure a local area network by using the router 92, the main control device 10 of the refrigerator, the networking device 20, the access terminal 30, and the mobile terminal device 91 such as a smartphone, and connect to the cloud server 93. The mobile terminal device 91 may be an intelligent electronic device such as a mobile phone, a tablet, a smart watch, and the like. The cloud server 93 may store real-time status of each device in the local area network and attribute information of an item bound by the access terminal 30. For example, the access terminal 30 may send its MAC address, defined frame header information, and data check information to the bluetooth device 20 at the refrigerator end through an encryption algorithm, and the bluetooth device 20 may detect a data packet of the access terminal 30 according to a defined communication protocol, and establish a device information table of the access terminal 30 according to the obtained data packet, where information such as a state attribute and a device attribute of each access terminal 30 is recorded in the device information table. The device state attributes comprise a network connection state, a network disconnection state, a low power consumption state, a data communication state, a device sounding alarm state, a device fault state and the like. The device information table can be stored in the cloud server to be updated in real time so as to be obtained by a display device of the refrigerator or a client in a mobile phone of a user in real time. Therefore, the attribute information of the articles bound by the access terminal can be displayed through the display equipment on the refrigerator, food searching and quality guarantee period management can be carried out, meanwhile, the attribute information can also be displayed through the cloud and the local area network at mobile terminals such as mobile phones of users, and management of the articles and food materials is facilitated more conveniently.
In a further embodiment, referring to fig. 3, the terminal management system 100 may further include a reader/writer 40 disposed on the refrigerator, an electronic tag 60 disposed inside the refrigerator, and a plurality of antennas 50 disposed on the refrigerator respectively. The electronic tag 60 may be one or more, and in the embodiment shown in fig. 3, the electronic tag 60 includes a first tag 61 and a second tag 62. Wherein the first tag 61 binds the food material placed in the refrigerating compartment inside the refrigerator and the second tag 62 binds the food material placed in the freezing compartment inside the refrigerator.
The reader/writer 40 may be provided on the refrigerator, and in particular, may be provided inside the refrigerator. In some embodiments, the reader/writer 40 may be integrated in the master device 10. The number of the reader/writer 40 may be one, and the reader/writer 40 may be configured to send a location query signal to the electronic tag 60 through the plurality of antennas 50, respectively, to obtain a distance between each antenna and the electronic tag.
The antenna 50 may be plural, and the antenna 50 may be disposed on the refrigerator, and particularly, may be disposed inside the refrigerator. The antenna 50 is used to read tag information under the control of the reader/writer 40. As shown in fig. 3, 3 antennas, a first antenna 51, a second antenna 52 and a third antenna 53 are provided at different positions inside the refrigerator, and it is understood that the position of each antenna in the refrigerator is known, so that the position coordinates of the electronic tag can be calculated based on the distance of each antenna from the electronic tag 60 and the initial position coordinates of each antenna.
Preferably, the antenna 50 may be disposed at a surface of the inside of the refrigerator, which is advantageous for the antenna 50 to transmit a location query signal to the electronic tag 60 inside the refrigerator and read the tag information under the control of the reader/writer 40, so that the measurement of the distance between each antenna 50 and the electronic tag 60 can be more accurate.
The electronic tag 60 is disposed inside the refrigerator. The electronic tag 60 is bound with a corresponding article. The electronic tag 60 may be used to store attribute information of the item. The main control device 10 may be connected to the reader/writer 40, receive the distance between each antenna 50 and the electronic tag 60, and obtain the specific position of the electronic tag 60 according to the distance between each antenna 50 and the electronic tag 60. Specifically, the number of antennas 50 is three or the number of antennas 50 is greater than three.
Specifically, the number of the antennas 50 is at least three, and the antennas 50 are respectively disposed at least three positions inside the refrigerator. The reader/writer 40 is configured to send a position query signal to the electronic tag 60 through the three antennas 50, respectively, and obtain a distance between each antenna 50 and the electronic tag 60. The master device 10 can obtain the specific position of the electronic tag 60 according to the distance between each antenna 50 of the three antennas 50 and the electronic tag 60.
In some embodiments, the antenna 50 may transmit a location query signal to the electronic tag 60 under the control of the reader/writer 40, and generate a first timestamp, and generate a second timestamp when the antenna 50 receives a response signal returned by the electronic tag 60. The reader/writer 40 may acquire the time difference for each antenna 50 by the first time stamp and the second time stamp read by the antenna 50. The reader/writer 40 then obtains the distance between each antenna 50 and the electronic tag 60 according to the time difference. In other embodiments, after obtaining the time difference between the first time stamp and the second time stamp read by the reader/writer 40 through the antenna 50, the time difference may be sent to the main control device 10, and then the main control device 10 obtains the distance between each antenna 50 and the electronic tag 60 according to the time difference. Therefore, the distance between each antenna and the electronic tag can be obtained through simple and less-complex calculation, and the specific position of the electronic tag can be obtained efficiently.
In still other embodiments, the distance between each antenna 50 and the electronic tag 60 may be obtained through an RSSI (Received Signal Strength Indicator) ranging technique, that is, the distance between the Signal point where the electronic tag 60 is located and the receiving point where the antenna 50 is located is measured according to the Strength of the Signal Received by the antenna 50 to the electronic tag 60.
In still other embodiments, while obtaining distance d1 between antenna 50 and electronic tag 60 according to the time difference, RSSI ranging technique may be used to measure distance d2 between antenna 50 and electronic tag 60, and the values of d1 and d2 are combined to obtain detected distance d3 between antenna 50 and electronic tag 60. When the difference between d1 and d2 is greater than the first threshold, it may be determined that both d1 and d2 are invalid, and obtain the distance d1 between the antenna 50 and the electronic tag 60 again according to the time difference, measure the distance d2 between the antenna 50 and the electronic tag 60 again using the RSSI ranging technique, and then determine whether the distance d is less than the first threshold. Only when the difference between d1 and d2 is smaller than the first threshold, d1 and d2 are judged to be valid, and the detection distance d3 between the antenna 50 and the electronic tag 60 is obtained after weighted averaging is carried out on d1 and d2, as follows:
d3＝k1·d1+k2*d2
wherein, k1 and k2 are weighting coefficients, and the values of k1 and k2 can be adjusted according to specific application scenarios. Therefore, the RSSI ranging technology is used for obtaining the distance d1 between the certain antenna 50 and the electronic tag 60 according to the time difference, the distance d2 between the antenna 50 and the electronic tag 60 is measured, d1 and d2 are integrated, the detection distance d3 between the antenna and the electronic tag is more accurate, the terminal management system is favorable for more accurately positioning the electronic tag, and the electronic tag can be accurately positioned in a certain drawer or a certain shelf of a refrigerator room where the electronic tag is located.
The reader-writer 40 can be connected and communicated with the main control device 10 of the refrigerator in a wired UART mode, the communication mode is more stable and convenient, the cost is far lower than the communication cost for communicating through the double Bluetooth modules, the problem that the Bluetooth devices need to be found before the reader-writer 40 communicates with the main control device 10 is solved, the Bluetooth devices are paired, a series of problems such as wireless interference are avoided, efficient communication between the reader-writer 40 and the main control device 10 can be achieved, the terminal management system of the embodiment can be beneficial to enabling the main control device 10 to efficiently and quickly obtain the distance between each antenna 50 of the three antennas 50 and the electronic tag 60, and therefore the position coordinate of the electronic tag 60 can be calculated quickly.
In a specific embodiment, the electronic tag 60 may be an RFID (Radio Frequency Identification) tag, and the reader/writer 40 may be an RFID reader/writer. Alternatively, the electronic tag 60 may be an NFC (Near Field Communication) tag, and the reader/writer 40 may be an NFC reader/writer.
Referring to fig. 4, an embodiment of the present application further provides a terminal management method for a refrigerator. The method comprises the following steps S401 to S402:
s401, when the access terminal is in the router 92 mode, the networking device 20 responds to a terminal search request of the main control device 10 for the access terminal 30, and sends a control instruction to the access terminal 30 through a wireless network;
s402. in response to the control instruction, the access terminal 30 performs a corresponding action to prompt the location of the access terminal 30.
According to the refrigerator terminal management method, the networking device 20 is arranged to automatically establish a wireless network between the networking device 20 and the access terminal 30, and the access terminal 30 can respond to a control instruction sent by the networking device 20 and execute a corresponding action to prompt the position of the access terminal 30, so that management of articles inside and outside the refrigerator can be efficiently achieved.
Referring to fig. 5, in some embodiments, after a user initiates a search for food materials through voice, a terminal management method of a refrigerator includes the following steps S501 to S504:
s501, receiving an external voice signal and identifying and converting a specific voice signal into a corresponding terminal searching request;
s502, the main control device 10 receives the terminal searching request and sends the terminal searching request to the networking device 20;
s503, the networking device 20 sends a control instruction to the access terminal 30 through a wireless network;
s504, the access terminal 30 performs sounding, vibrating or lighting actions to prompt the user about the location of the access terminal 30 and the food material bound by the access terminal 30.
The external voice signal may be a voice signal sent by a user. The specific speech signal may be a speech signal containing a specific phrase, where the specific phrase includes a certain food material name or terms such as "query", "search", and the like.
Referring to fig. 6, in some embodiments, the steps of a specific usage scenario of the terminal management method for a refrigerator are shown in S601 to S613. As shown in steps S601 to S603, after the refrigerator is powered on, the networking device 20 automatically constructs a wireless network between the networking device 20 and the access terminal 30, and then the user may initiate a search for food materials through the voice recognition module 80 or the display screen button. Then, as shown in step S604, it is determined whether the food material searched by the user is bound to the access terminal 30. When the terminal management system 100 does not include the information of the food material, that is, the food material searched by the user is not bound to the access terminal 30, as shown in step S605, the voice broadcasting module broadcasts the "the management system does not find the food material" in a voice mode, the food management interface of the display screen displays that no food material exists outside the refrigerator, and the search is finished. When the food material searched by the user is bound to the access terminal 30, as shown in step S606, the main control device 10 initiates a corresponding terminal search request to the access terminal 30 bound to the food material. Then, as shown in step S607, it is determined whether the access terminal 30 successfully responds. When the access terminal 30 successfully responds, as shown in steps S608 to S611, the main control device 10 sends a terminal search request to the networking device 20, the networking device 20 searches for the access terminal 30 in the wireless network and sends a control instruction to the access terminal 30, the access terminal 30 responds to the control instruction, starts its own sounding device to perform a sounding action, and the voice broadcast module broadcasts "terminal response is successful" or the display device 70 displays "terminal response is successful", and the search is finished. When the access terminal 30 does not respond successfully, as shown in steps S612 and S613, the voice broadcasting module of the terminal management system 100 plays "terminal response failed" in voice, and the display screen displays "terminal response failed".
The specific details of the terminal management method for the refrigerator provided in each embodiment of the present application have been described in detail in the corresponding system embodiment, and are not described herein again.
In summary, in the terminal management system and method for a refrigerator according to the embodiments of the present application, the networking device 20 is arranged to automatically establish a wireless network between the networking device 20 and the access terminal 30, and the access terminal 30 can respond to a control instruction sent by the networking device 20 and execute a corresponding action to prompt the location of the access terminal 30, so that management of articles inside and outside the refrigerator can be efficiently achieved, and article search in a scene such as a home or an office of a user can be achieved.
In the description of embodiments of the present application, any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
The access terminal 30 of this application embodiment can set up in the refrigerator outside, combine the network deployment equipment of refrigerator, access terminal 30 can respond to the control command that network deployment equipment 20 sent, carry out corresponding action in order to indicate access terminal 30's position to can effectively solve the refrigerator outside and eat the material more and dredge the management and cause this difficult problem of the waste of eating the material, the cooperation is through position detection and the attribute information management of eating the material in the electronic tags to the user refrigerator, the edible material management in the inside and outside edible material family space of user's refrigerator has been realized.
By adopting the terminal management system and method comprising the electronic tag, the antenna and the card reader, not only can the food materials in the refrigerating chamber, the temperature-changing chamber and the freezing chamber of the refrigerator be positioned, but also the drawer or shelf of the compartment where the food materials are positioned can be accurately positioned.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection having one or more wires (control method), a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the embodiments of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a terminal management system of refrigerator, its characterized in that, terminal management system is including locating the master control equipment on the refrigerator, locating the network deployment equipment on the refrigerator and locating the inside or the outside access terminal of refrigerator, network deployment equipment is used for automatic the network deployment equipment with wireless network between the access terminal, wherein:
the networking device is configured to: when the access terminal is in the router mode, the access terminal can respond to a terminal searching request of the main control equipment for the access terminal and send a control instruction to the access terminal through the wireless network;
the access terminal is configured to: in response to the control instructions, corresponding actions are performed to prompt the location of the access terminal.
2. The system of claim 1, wherein the networking device is a bluetooth device configured to: when in coordinator mode, a wireless network between the Bluetooth device and the access terminal can be automatically established.
3. The system of claim 1, wherein after the networking device successfully establishes the wireless network with the access terminal, the access terminal transitions to a low power mode and maintains a heartbeat connection with the networking device.
4. The system of claim 1, wherein the access terminal is bound with a corresponding item and manages attribute information of the item, and wherein the networking device is further configured to: responding to a query request for querying attribute information of the item, and sending a query instruction to the access terminal through the wireless network;
the access terminal is further configured to: and responding to the query instruction, and sending the attribute information of the article to the networking equipment through the wireless network.
5. The system of claim 4, wherein the item is a food material, the attribute information of the food material comprises a freshness date, and the master device is further configured to: and carrying out expiration early warning reminding on the food materials at a preset time before the expiration of the freshness date of the food materials.
6. The system of claim 1, wherein the terminal management system further comprises a reader-writer disposed on the refrigerator, an electronic tag disposed inside the refrigerator, and antennas disposed on the refrigerator, respectively, the electronic tag being bound with a corresponding article;
the electronic tag is configured to: storing attribute information of the article;
the antenna is configured to: and reading the label information under the control of the reader-writer.
7. The system of claim 6, wherein the number of said antennas is at least three, said antennas being respectively disposed at least three locations inside the refrigerator,
the reader is further configured to: respectively sending position query signals to the electronic tag through the three antennas to obtain the distance between each antenna and the electronic tag;
the main control device is further configured to obtain the specific position of the electronic tag according to the distance between each antenna and the electronic tag.
8. The system of claim 7, wherein:
the antenna is further configured to: sending a position query signal to the electronic tag under the control of the reader-writer, generating a first timestamp at the same time, and generating a second timestamp when the antenna receives a response signal returned by the electronic tag;
the reader is configured to: and aiming at each antenna, acquiring a time difference through a first time stamp and a second time stamp read by the antenna, and acquiring the distance between each antenna and the electronic tag according to the time difference.
9. The system of any one of claims 1-8, further comprising a display device:
the display device is connected with the main control device and is used for displaying a search result of the main control device aiming at the terminal search request of the access terminal.
10. A terminal management method of a refrigerator, the method being applied to the terminal management system of any one of claims 1 to 9, the method comprising:
when the access terminal is in the router mode, the networking equipment responds to a terminal searching request of the main control equipment for the access terminal and sends a control instruction to the access terminal through the wireless network;
in response to the control instructions, the access terminal performs corresponding actions to prompt the location of the access terminal.
CN202110261301.XA 2021-03-10 2021-03-10 Terminal management system and method for refrigerator Pending CN113938865A (en)

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