Food material information display label and food material information display method

Abstract

The embodiment of the application provides a kind of food material information display label and food material information display method, wherein food material information display label includes short-range wireless communication module, voltage stabilizing module, display module, charge-discharge module and control module, by setting short-range wireless communication module, in response to the first closing instruction sent by terminal, close charging port, the closing success state information generated is returned to terminal, receive and store the food material information sent by terminal, in response to the second on-off instruction sent by terminal, connect charging port, and charge charge-discharge module through charging port, if the voltage of charge-discharge module is greater than the threshold voltage of voltage stabilizing module, then voltage stabilizing module supplies power to control module and display module, so that control module obtains the food material information in short-range wireless communication module, food material information is sent to display module and is displayed, the display effect of food material information display label is optimized.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology. More specifically, it relates to a food information display label and a method for displaying food information. Background Technology

[0002] Refrigerators are a common household appliance in daily life. Users usually store various foods in the refrigerator or freezer compartments to extend the best-tasting period of the foods by lowering the storage temperature.

[0003] In the prior art, in order to avoid food spoilage due to prolonged storage, electronic tags with displays are used to show the storage information of the food during the storage process.

[0004] However, existing electronic tags are charged by power supply induction coils, which interferes with the data reading process of the electronic tags during the charging process, affecting the accuracy of the content displayed by the electronic tags. Summary of the Invention

[0005] This application provides an exemplary embodiment of a food information display label and a food information display method. By setting a near-field wireless communication module to receive food information sent by a terminal when charging is stopped, and charging the charging and discharging module according to the received radio frequency power, the display effect of the food information display label is optimized.

[0006] In a first aspect, embodiments of this application provide a food information display label, which includes a near-field wireless communication module, a voltage regulator module, a display module, a charging / discharging module, and a control module. The control module is connected to the display module, the charging / discharging module, and the near-field wireless communication module, respectively. The near-field wireless communication module is used to charge the charging / discharging module through a charging port, and the voltage regulator module is used to supply power to the control module and the display module according to the voltage of the charging / discharging module.

[0007] The short-range wireless communication module is configured as follows:

[0008] In response to the first shutdown command sent by the terminal, the charging port is closed, and the generated shutdown success status information is returned to the terminal;

[0009] Receive and store the food information sent by the terminal;

[0010] In response to the second connection command sent by the terminal, the charging port is connected, and the charging and discharging module is charged through the charging port. If the voltage of the charging and discharging module is greater than the threshold voltage of the voltage regulator module, the voltage regulator module supplies power to the control module and the display module.

[0011] The control module is configured as follows:

[0012] Obtain food information from the near-field wireless communication module;

[0013] The ingredient information is sent to the display module for display.

[0014] In one possible design, the control module is further configured to, after sending the ingredient information to the display module for display, also be used to:

[0015] The generated third shutdown command is sent to the near-field wireless communication module, causing the near-field wireless communication module to shut down the charging port;

[0016] A discharge command is generated, and the charging and discharging module is controlled to discharge according to the discharge command.

[0017] In one possible design, the charging / discharging module includes a capacitor and a resistor, and the control module is connected to the resistor of the charging / discharging module through a discharge port, which is grounded.

[0018] The control module is configured to, when executing the command to control the charging / discharging module to discharge according to the discharge instruction, specifically for:

[0019] The discharge port is connected according to the discharge command, so that the charging and discharging module discharges through the discharge port.

[0020] In one possible design, the short-range wireless communication module includes a communication control module and an antenna module;

[0021] The near-field wireless communication module is configured to, when performing the charging / discharging of the charging / discharging module through the charging port, specifically for:

[0022] The antenna module receives the wireless radio frequency power transmitted by the terminal and converts it into an induced voltage;

[0023] The capacitor is charged through the charging port according to the induced voltage.

[0024] In one possible design, the control module is configured to, when performing the acquisition of food information from the near-field wireless communication module, specifically for:

[0025] Acquire the data stored in the short-range wireless communication module;

[0026] The data is parsed according to preset data frame rules to obtain ingredient information.

[0027] In one possible design, the display module is an e-ink screen.

[0028] In one possible design, the ingredient information includes at least one of ingredient label, ingredient name, storage date, and expiration date.

[0029] Secondly, embodiments of this application provide a method for displaying food information, applied to a near-field wireless communication module of a food information display tag. The food information display tag includes a near-field wireless communication module, a voltage regulator module, a display module, a charging / discharging module, and a control module. The control module is connected to the display module, the charging / discharging module, and the near-field wireless communication module. The near-field wireless communication module is used to charge the charging / discharging module through a charging port, and the voltage regulator module is used to supply power to the control module and the display module according to the voltage of the charging / discharging module.

[0030] The method includes the following steps:

[0031] In response to the first shutdown command sent by the terminal, the charging port is closed, and the generated shutdown success status information is returned to the terminal;

[0032] Receive and store the food information sent by the terminal;

[0033] In response to the second connection command sent by the terminal, the charging port is connected, and the charging and discharging module is charged through the charging port. If the voltage of the charging and discharging module is greater than the threshold voltage of the voltage regulator module, the voltage regulator module supplies power to the control module and the display module, so that the control module obtains the food information in the near-field wireless communication module and sends the food information to the display module for display.

[0034] Thirdly, embodiments of this application provide a method for displaying food information, applied to a terminal, including:

[0035] In response to establishing a connection with the short-range wireless communication module, a first shutdown command is sent to the short-range wireless communication module.

[0036] Based on the returned successful shutdown status information, send the food information to the near-field wireless communication module;

[0037] The generated second connection command is sent to the near-field wireless communication module, causing the near-field wireless communication module to connect to the charging port and charge the charging and discharging module through the charging port. If the voltage of the charging and discharging module is greater than the threshold voltage of the voltage regulator module, the voltage regulator module supplies power to the control module and the display module, so that the control module of the food information display label can obtain the food information in the near-field wireless communication module and send the food information to the display module for display.

[0038] In one possible design, prior to sending the food information to the near-field wireless communication module, the following is also included:

[0039] Ingredient information is generated based on the ingredient management data obtained from the ingredient management software.

[0040] The food information display label and food information display method provided in this application embodiment receive food information sent by the terminal when the near-field wireless communication module is not charging, and charge the charging and discharging module according to the received radio frequency power, thereby avoiding interference with data transmission during the charging and discharging process and improving the display effect of the food information display label. Attached Figure Description

[0041] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0042] Figure 1 A schematic diagram of the structure of the food information display label provided in this embodiment of the invention. Figure 1 ;

[0043] Figure 2 A schematic diagram of the structure of the food information display label provided in this embodiment of the invention. Figure 2 ;

[0044] Figure 3 Flowchart of the food information display method provided in the embodiments of the present invention Figure 1 ;

[0045] Figure 4 Flowchart of the food information display method provided in the embodiments of the present invention Figure 2 ;

[0046] Figure 5 Flowchart of the food information display method provided in the embodiments of the present invention Figure 3 ;

[0047] Figure 6A schematic diagram of the structure of the food information display device provided in the embodiments of the present invention. Figure 1 ;

[0048] Figure 7 A schematic diagram of the structure of the food information display device provided in the embodiments of the present invention. Figure 2 ;

[0049] Figure 8 This is a schematic diagram of the controller structure provided in an embodiment of the present invention. Detailed Implementation

[0050] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0051] Based on the exemplary embodiments described in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the appended claims. Furthermore, although the disclosures in this application are presented by way of one or more exemplary examples, it should be understood that each aspect of these disclosures can also constitute a complete implementation on its own.

[0052] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0053] In this application, the terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings are used to distinguish similar or related objects or entities and do not necessarily imply a specific order or sequence, unless otherwise indicated. It should be understood that such terms can be used interchangeably where appropriate, for example, in situations where implementation is possible in a sequence other than those given in the embodiments illustrated or described in this application.

[0054] Furthermore, the terms “including” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0055] As used in this application, the term "module" refers to any known or subsequently developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and / or software code capable of performing the functions associated with that element.

[0056] Refrigerators are a common household appliance, and users typically store various foods in the refrigerator or freezer compartments to extend their shelf life by lowering the storage temperature. In existing technology, to prevent food spoilage due to prolonged storage, electronic tags with displays are used to show storage information during the food storage process. However, because these electronic tags are powered by built-in batteries, they suffer from limited standby time, high power consumption, and high operating costs.

[0057] To address the issues of limited standby time, high power consumption, and high operating costs associated with existing electronic tags, this application provides a food information display tag and a food information display method. The food information display tag includes a near-field communication module, a voltage regulator module, a display module, a charging / discharging module, and a control module. The near-field communication module receives food information sent by the terminal even when charging is stopped, and charges the charging / discharging module based on the received radio frequency power. This avoids interference with data transmission during the charging / discharging process and improves the display effect of the food information display tag.

[0058] The technical solutions of this application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0059] Figure 1 A schematic diagram of the structure of the food information display label provided in this embodiment of the invention. Figure 1 .like Figure 1 As shown, the food information display label includes a near-field wireless communication module 101, a voltage regulator module 102, a display module 103, a charging / discharging module 104, and a control module 105.

[0060] In this embodiment of the invention, the control module 105 is connected to the display module 103, the charging and discharging module 104, and the near-field wireless communication module 101, respectively. The near-field wireless communication module 101 is used to charge the charging and discharging module 104 through the charging port, and the voltage regulator module 102 is used to supply power to the control module 105 and the display module 103 according to the voltage of the charging and discharging module 104.

[0061] Figure 2 A schematic diagram of the structure of the food information display label provided in this embodiment of the invention. Figure 2 .like Figure 2As shown, the near-field wireless communication module 101 includes a communication control module 1011 and an antenna module 1012. The communication control module 1011 and the antenna module 1012 are connected via an antenna port. For example, the communication control module is a near-field communication (NFC) chip, and the antenna module is specifically an NFC antenna coil.

[0062] For example, such as Figure 2 As shown, the charge / discharge module 104 includes a capacitor 1041 and a resistor 1042. For example, the control module 105 is connected to the resistor 1042 of the charge / discharge module 104 via a discharge port, where the discharge port is grounded. It should be noted that the capacitor 1041 is used to charge according to the voltage output from the charging port, and the resistor 1042 is used to form an RC circuit with the capacitor 1041 for rapid discharge.

[0063] For example, the charging and discharging module 104 continuously charges the capacitor 1041. When the voltage of the capacitor 1041 connected to the voltage regulator module 102 is greater than or equal to the threshold voltage of the voltage regulator module 102, the voltage regulator module 102 outputs a high level to the display module and the control module, providing the operating voltage Vcc to the display module 103 and the control module 105, so that the display module 103 and the control module 105 are powered on and started.

[0064] Figure 3 Flowchart of the food information display method provided in the embodiments of the present invention Figure 1 ,like Figure 3 As shown, the method includes:

[0065] S301: The near-field wireless communication module responds to the first shutdown command sent by the terminal, shuts down the charging port, and returns the generated shutdown success status information to the terminal.

[0066] In this embodiment of the invention, the terminal includes a near-field wireless communication radio frequency communication module, which is used to send wireless communication radio frequency communication signals at a preset frequency, and to establish a near-field wireless communication connection after sensing the communication signal returned by the near-field wireless communication module.

[0067] In this embodiment of the invention, after the terminal establishes a connection with the near-field communication module, it generates a first shutdown command and sends it to the connected near-field communication module, causing the near-field communication module to shut down the charging port connected to the charging / discharging module. Specifically, after the near-field communication module shuts down the charging port, it generates a shutdown success status message and sends the shutdown success status message to the terminal, enabling the terminal to send data after shutting down the charging port, thus avoiding interference with data transmission caused by charging.

[0068] S302: The near-field wireless communication module receives and stores the food information sent by the terminal, responds to the second connection command sent by the terminal to connect the charging port, and charges the charging and discharging module through the charging port. If the voltage of the charging and discharging module is greater than the threshold voltage of the voltage regulator module, the voltage regulator module supplies power to the control module and the display module.

[0069] For example, the terminal is equipped with food management software. Users can input food management information into the food management software, and the terminal generates food information through the food management data obtained by the food management software.

[0070] For example, the food information includes at least one of the following: food label, food name, storage date, and expiration date.

[0071] In this embodiment of the invention, the terminal sends the obtained food information to the near-field wireless communication module, so that the near-field wireless communication module stores the food information that needs to be displayed.

[0072] In this embodiment of the invention, after the terminal completes the transmission of food information, a second connection command is generated to ensure power supply to the display module and the control module. This command causes the near-field wireless communication module to connect to the charging port, allowing it to charge the charging module through the charging port. Specifically, the wireless radio frequency power received by the antenna module of the near-field wireless communication module is converted into an induced voltage; the capacitor is then charged through the charging port based on the induced voltage.

[0073] It should be noted that, in order to ensure the stability of the power supply voltage, this invention incorporates a voltage regulator module. Specifically, during the capacitor charging process, when the capacitor voltage connected to the voltage regulator module is less than the threshold voltage of the voltage regulator module, the voltage regulator module does not output voltage. When the capacitor voltage connected to the voltage regulator module is greater than or equal to the threshold voltage of the voltage regulator module, the voltage regulator module outputs a high level to the display module and control module, supplying power to them and enabling them to start operating.

[0074] S303: The control module obtains the food information from the short-range wireless communication module and sends the food information to the display module for display.

[0075] In this embodiment of the invention, after the control module is powered on, it acquires the food information from the near-field wireless communication module and displays it on the display module. For example, the display module is an e-ink screen. Specifically, the e-ink screen displays content after being powered on and retains the displayed content after power is turned off.

[0076] Specifically, the control module has preset data frame rules corresponding to the ingredient information. For example, after acquiring data stored in the short-range wireless communication module, the control module parses the data according to the preset data frame rules to obtain the ingredient identifier, ingredient name, storage date, and expiration date contained in the ingredient information. For example, the control module and the short-range wireless communication module communicate via a serial peripheral interface or an I2C bus.

[0077] The food information display method provided in this embodiment receives food information sent by the terminal when the near-field wireless communication module is not charging, and charges the charging and discharging module according to the radio frequency power received by the near-field wireless communication module to supply power to the display module and the control module. This avoids interference with data transmission during the charging and discharging process and improves the display effect of the food information display label.

[0078] Figure 4 Flowchart of the food information display method provided in the embodiments of the present invention Figure 2 In this embodiment of the invention, in Figure 3 Based on the provided embodiments, the discharge process after sending the food information to the display module for display in S303 is described in detail. For example... Figure 4 As shown, the method includes:

[0079] S401: The control module sends the generated third shutdown command to the short-range wireless communication module, causing the short-range wireless communication module to shut down the charging port.

[0080] It should be noted that due to the display characteristics of e-ink screens, unstable power supply voltage can cause flickering or incomplete display when refreshing the content. Therefore, given that e-ink screens retain their display even after a power outage, timely power disconnection is necessary to ensure the optimal display quality of the food information.

[0081] In this embodiment of the invention, the control module sends the generated third shutdown command to the near-field wireless communication module, causing the near-field wireless communication module to shut down the charging port, that is, to stop the charging process of the charging and discharging module by the near-field wireless communication module.

[0082] S402: Generates a discharge command and controls the charging and discharging module to discharge according to the discharge command.

[0083] In this embodiment of the invention, by promptly consuming the charge in the capacitor and reducing its voltage, the voltage regulator module stops supplying power to the display module and the control module. Specifically, the control module connects the discharge port according to a discharge command, allowing the charging and discharging module to discharge through the discharge port. Once the discharge port is connected, because it is grounded, the resistor consumes the charge in the capacitor, reducing its voltage.

[0084] The food information display method provided in this embodiment, by timely stopping the power supply to the display module and the control module, ensures that the food information displayed on the e-ink screen remains even after power is cut off. This avoids the problem of flickering or incomplete display content on the e-ink screen when the power supply voltage is unstable, thus optimizing the display effect of the food information display label.

[0085] Figure 5 Flowchart of the food information display method provided in the embodiments of the present invention Figure 3 The executing entity in this embodiment can be a terminal equipped with a short-range wireless communication module. For example... Figure 5 As shown, the method includes:

[0086] S501: In response to establishing a connection with the short-range wireless communication module, a first shutdown command is generated and sent to the short-range wireless communication module.

[0087] S502: Based on the returned successful shutdown status information, send the food information to the short-range wireless communication module.

[0088] S503: The generated second connection command is sent to the near-field wireless communication module, so that the near-field wireless communication module connects to the charging port and charges the charging and discharging module through the charging port. If the voltage of the charging and discharging module is greater than the threshold voltage of the voltage regulator module, the voltage regulator module supplies power to the control module and the display module, so that the control module of the food information display label can obtain the food information in the near-field wireless communication module and send the food information to the display module for display.

[0089] It should be noted that the methods and effects implemented in S501 to S503 of this embodiment of the invention are similar to those in the present invention. Figure 3 The methods and effects implemented in S301 to S303 in the embodiments are the same, and will not be described again here.

[0090] The food information display method provided in this embodiment receives food information sent by the terminal when the near-field wireless communication module is not charging, and charges the charging and discharging module according to the radio frequency power received by the near-field wireless communication module to supply power to the display module and the control module. This avoids interference with data transmission during the charging and discharging process and improves the display effect of the food information display label.

[0091] Figure 6 A schematic diagram of the structure of the food information display device provided in the embodiments of the present invention. Figure 1 This food information display device is used in the control module of the food information display label, such as... Figure 6 As shown, the food information display device 60 includes an acquisition unit 601 and a display unit 602.

[0092] The acquisition unit 601 is used to acquire the food information in the near-field wireless communication module.

[0093] Display unit 602 is used to send the food information to the display module for display.

[0094] The apparatus provided in this embodiment can be used to perform the above-described... Figure 3 as well as Figure 4 The technical solutions described in this embodiment are similar in principle and in effect, and will not be repeated here.

[0095] In one possible design, the food information display device 60 further includes a discharge unit for sending a generated third shutdown command to the near-field wireless communication module, causing the near-field wireless communication module to shut down the charging port; generating a discharge command, and controlling the charging and discharging module to discharge according to the discharge command.

[0096] In one possible design, the discharge unit is specifically used to connect the discharge port according to the discharge command, so that the charge / discharge module discharges through the discharge port.

[0097] In one possible design, the acquisition unit 601 is specifically used to acquire the data stored in the near-field wireless communication module; and to parse the data according to a preset data frame rule to obtain the ingredient information.

[0098] Figure 7 A schematic diagram of the structure of the food information display device provided in the embodiments of the present invention. Figure 2 This food information display device is used in terminals, such as... Figure 7 As shown, the food information display device 70 includes: a connection establishment unit 701, a transmission unit 702, and a charging unit 703.

[0099] A connection establishment unit 701 is configured to send a generated first shutdown command to the short-range wireless communication module in response to establishing a connection with the short-range wireless communication module.

[0100] The sending unit 702 is used to send food information to the near-field wireless communication module based on the returned closed success status information.

[0101] The charging unit 703 is used to send the generated second connection command to the near-field wireless communication module, so that the near-field wireless communication module connects the charging port and charges the charging and discharging module through the charging port. If the voltage of the charging and discharging module is greater than the threshold voltage of the voltage regulator module, the voltage regulator module supplies power to the control module and the display module, so that the control module of the food information display label obtains the food information in the near-field wireless communication module and sends the food information to the display module for display.

[0102] The apparatus provided in this embodiment can be used to perform the above-described... Figure 5 The technical solutions described in this embodiment are similar in principle and in effect, and will not be repeated here.

[0103] In one possible design, the food information display device 70 also includes a generation unit for generating food information based on food management data obtained from the food management software.

[0104] Figure 8 This is a schematic diagram of the controller structure provided in an embodiment of the present invention. Figure 8 As shown, the controller in this embodiment includes: a processor 801 and a memory 802; wherein,

[0105] Memory 802 is used to store instructions executed by the computer;

[0106] The processor 801 is used to execute computer execution instructions stored in the memory to implement the various steps performed by the control module in the above embodiments. For details, please refer to the relevant descriptions in the foregoing method embodiments.

[0107] Alternatively, the memory 802 can be either standalone or integrated with the processor 801.

[0108] When the memory 802 is set up independently, the control module also includes a bus 803 for connecting the memory 802 and the processor 801.

[0109] This invention also provides a computer storage medium storing computer execution instructions. When a processor executes the computer execution instructions, the food information display method described above is implemented.

[0110] This invention also provides a computer program product, including a computer program, which, when executed by a processor, implements the food information display method described above.

[0111] In the several embodiments provided by this invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or modules, and may be electrical, mechanical, or other forms.

[0112] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to implement the solution of this embodiment according to actual needs.

[0113] Furthermore, the functional modules in the various embodiments of the present invention can be integrated into one processing unit, or each module can exist physically separately, or two or more modules can be integrated into one unit. The unit composed of the above modules can be implemented in hardware or in the form of hardware plus software functional units.

[0114] The integrated modules implemented as software functional modules described above can be stored in a computer-readable storage medium. These software functional modules, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods described in the various embodiments of this application.

[0115] It should be understood that the aforementioned processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. A general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules within the processor.

[0116] The memory may include high-speed random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device, and may also be a USB flash drive, external hard drive, read-only memory, disk or optical disc, etc.

[0117] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0118] The aforementioned storage media can be implemented from any type of volatile or non-volatile storage device or a combination thereof, such as Static Random-Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The storage media can be any available medium accessible to general-purpose or special-purpose computers.

[0119] An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Alternatively, the storage medium can be an integral part of the processor. Both the processor and the storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and storage medium can exist as discrete components in an electronic device or host device.

[0120] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A food information display label, characterized in that, The food information display label includes a near-field wireless communication module, a voltage regulator module, a display module, a charging / discharging module, and a control module. The control module is connected to the display module, the charging / discharging module, and the near-field wireless communication module. The near-field wireless communication module is used to charge the charging / discharging module through a charging port. The voltage regulator module is used to supply power to the control module and the display module according to the voltage of the charging / discharging module. The short-range wireless communication module is configured as follows: In response to a first shutdown command sent by the terminal, the charging port is shut down, a shutdown success status information is generated, and the shutdown success status information is sent to the terminal, so that the terminal sends the food information after shutting down the charging port; The system receives and stores the food information sent by the terminal, connects the charging port in response to the second connection command sent by the terminal, and charges the charging and discharging module through the charging port. If the voltage of the charging and discharging module is greater than the threshold voltage of the voltage regulator module, the voltage regulator module supplies power to the control module and the display module. The control module is configured as follows: Obtain food information from the near-field wireless communication module; The ingredient information is sent to the display module for display.

2. The food information display label according to claim 1, characterized in that, The control module is further configured to, after sending the ingredient information to the display module for display, also be used to: The generated third shutdown command is sent to the near-field wireless communication module, causing the near-field wireless communication module to shut down the charging port; A discharge command is generated, and the charging and discharging module is controlled to discharge according to the discharge command.

3. The food information display label according to claim 2, characterized in that, The charging and discharging module includes a capacitor and a resistor. The control module is connected to the resistor of the charging and discharging module through a discharge port, and the discharge port is grounded. The control module is configured to, when executing the command to control the charging / discharging module to discharge according to the discharge instruction, specifically for: The discharge port is connected according to the discharge command, so that the charging and discharging module discharges through the discharge port.

4. The food information display label according to claim 3, characterized in that, The short-range wireless communication module includes a communication control module and an antenna module; The near-field wireless communication module is configured to, when performing the charging / discharging of the charging / discharging module through the charging port, specifically for: The antenna module receives the wireless radio frequency power transmitted by the terminal and converts it into an induced voltage; The capacitor is charged through the charging port according to the induced voltage.

5. The food information display label according to claim 1, characterized in that, The control module is configured to, when performing the acquisition of food information from the near-field wireless communication module, specifically for: Acquire the data stored in the short-range wireless communication module; The data is parsed according to preset data frame rules to obtain ingredient information.

6. The food information display label according to claim 1, characterized in that, The display module is an e-ink screen.

7. The food information display label according to any one of claims 1 to 6, characterized in that, The food information includes at least one of the following: food label, food name, storage date, and expiration date.

8. A method for displaying food ingredient information, characterized in that, A near-field wireless communication module is used in a food information display label. The food information display label includes a near-field wireless communication module, a voltage regulator module, a display module, a charging / discharging module, and a control module. The control module is connected to the display module, the charging / discharging module, and the near-field wireless communication module. The near-field wireless communication module is used to charge the charging / discharging module through a charging port. The voltage regulator module is used to supply power to the control module and the display module according to the voltage of the charging / discharging module. The method includes the following steps: In response to a first shutdown command sent by the terminal, the charging port is shut down, a shutdown success status information is generated, and the shutdown success status information is sent to the terminal, so that the terminal sends the food information after shutting down the charging port; The system receives and stores the food information sent by the terminal, connects the charging port in response to the second connection command sent by the terminal, and charges the charging and discharging module through the charging port. If the voltage of the charging and discharging module is greater than the threshold voltage of the voltage regulator module, the voltage regulator module supplies power to the control module and the display module, so that the control module obtains the food information in the short-range wireless communication module and sends the food information to the display module for display.

9. A method for displaying food ingredient information, characterized in that, Applied to terminals, including: In response to establishing a connection with the short-range wireless communication module, a first shutdown command is sent to the short-range wireless communication module. Based on the returned successful shutdown status information, send the food information to the near-field wireless communication module; The generated second connection command is sent to the near-field wireless communication module, causing the near-field wireless communication module to connect to the charging port and charge the charging and discharging module through the charging port. If the voltage of the charging and discharging module is greater than the threshold voltage of the voltage regulator module, the voltage regulator module supplies power to the control module and the display module, so that the control module of the food information display label can obtain the food information in the near-field wireless communication module and send the food information to the display module for display.

10. The method according to claim 9, characterized in that, Before sending the food information to the near-field wireless communication module, the method further includes: Ingredient information is generated based on the ingredient management data obtained from the ingredient management software.

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