Electronic tag response method, electronic tag marking method, electronic tag response device, electronic tag marking device and electronic equipment

Abstract

The invention provides an electronic tag response method and device, a marking method and device and electronic equipment, and relates to the technical field of the Internet of Things, and the electronic tag response method comprises the steps that an electronic tag receives a first instruction sent by a reader-writer; the electronic tag obtains mark state information based on the first instruction, the mark state information is used for controlling the power supply state of a second module in the electronic tag, and the second module is used for responding to an instruction sent by the reader-writer; and the electronic tag determines a response result to the first instruction according to the mark state information. According to the embodiment of the invention, the electronic tag controls the power state of the second module and the response to the reader-writer according to the tag state information, so that the electronic tag can selectively respond to the reader-writer, and the response reliability of the electronic tag can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of Internet of Things, and in particular to a response method, a marking method, a device and an electronic device of an electronic tag. Background Art

[0002] Radio Frequency Identification (RFID) technology is a contactless automatic recognition technology that can obtain relevant data by automatically identifying RFID electronic tags through radio frequency signals. It has been widely used in the field of warehouse management.

[0003] In actual applications, when there are multiple tags and it is necessary to filter tags that do not meet the current status, the reader can select one or more specific tags within the coverage range through the Select command. The Select command mainly performs tag filtering by specifying a mask, such as specifying one or several tags of the same type of mask to respond normally. However, since the Select command may be lost or the tag may not respond after it is sent, the probability of filtering failure is high.

[0004] It can be seen that the reliability of the tag response method selected in the above manner is poor. Summary of the invention

[0005] The embodiments of the present application provide an electronic tag response method, a marking method, a device and an electronic device to solve the problem of poor reliability of the selected tag response method.

[0006] To solve the above technical problems, this application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a response method of an electronic tag, the method comprising:

[0008] The electronic tag receives a first instruction sent by the reader;

[0009] The electronic tag acquires tag status information based on the first instruction, wherein the tag status information is used to control the power state of a second module in the electronic tag, and the second module is used to respond to the instruction sent by the reader;

[0010] The electronic tag determines a response result to the first instruction according to the tag status information.

[0011] Optionally, before the electronic tag receives the first instruction sent by the reader / writer, the method further includes:

[0012] The electronic tag receives a radio frequency signal sent by a reader;

[0013] The electronic tag charges the first module in the electronic tag based on the radio frequency signal;

[0014] The electronic tag acquires the marking state information based on the first instruction, including:

[0015] The first module of the electronic tag obtains tag status information based on the first instruction.

[0016] Optionally, after the electronic tag receives the first instruction sent by the reader, the method further includes:

[0017] The first module of the electronic tag receives a marking state change signal, and determines the marking state information according to the marking state change signal;

[0018] The first module of the electronic tag controls the second module to be in a power supply state based on the tag state information;

[0019] The determining a response result to the first instruction according to the marking state information includes:

[0020] When it is determined according to the tag state information that the tag state has changed, the second module of the electronic tag sends a response message of the first instruction to the reader / writer.

[0021] Optionally, the first module of the electronic tag receives a marking state change signal, including any one of the following:

[0022] The first module of the electronic tag receives a marking state change signal sent by a marking device through a target signal transmission method;

[0023] The first module of the electronic tag receives a tag state change signal input by a target object.

[0024] Optionally, before receiving the mark state change signal through the first module, the method further includes:

[0025] The first module of the electronic tag controls the power state of the second module to be a power-off state or a low-power state, and the low-power state is a state in which the operating power of the second module is less than a preset value.

[0026] Optionally, the first module includes a first submodule and a second submodule, and the first module of the electronic tag receives a marking state change signal, including:

[0027] The first submodule of the electronic tag receives a marking state change signal;

[0028] The second submodule of the electronic tag acquires the marking state change signal and converts the marking state change signal into the marking state information.

[0029] In a second aspect, an embodiment of the present application provides a response method of an electronic tag, the method comprising:

[0030] The reader sends a radio frequency signal to the electronic tag;

[0031] The reader / writer sends a first instruction to the electronic tag;

[0032] The reader / writer receives a response message of the first instruction sent by the electronic tag according to the tag status information.

[0033] Optionally, before the reader / writer sends the first instruction to the electronic tag, the method further includes:

[0034] The reader / writer sends a command notification to the marking device, where the command notification is used to instruct the marking device to send a marking state change signal to the electronic tag.

[0035] In a third aspect, an embodiment of the present application provides a method for marking an electronic tag, the method comprising:

[0036] The marking device receives the instruction notification sent by the reader;

[0037] The marking device sends a marking change signal to the electronic tag according to the instruction notification.

[0038] In a fourth aspect, an embodiment of the present application provides a response device for an electronic tag, the device comprising:

[0039] A first receiving module, used for receiving a first instruction sent by the reader;

[0040] an acquisition module, used for acquiring tag status information based on the first instruction, wherein the tag status information is used for controlling the power state of a second module in the electronic tag, and the second module is used for responding to the instruction sent by the reader;

[0041] A determination module is used to determine a response result to the first instruction according to the marking state information.

[0042] Optionally, the device further comprises:

[0043] A second receiving module is used to receive the radio frequency signal sent by the reader;

[0044] A charging module, used for charging the first module in the electronic tag based on the radio frequency signal;

[0045] The acquisition module is specifically used for:

[0046] The marking state information is acquired by the first module based on the first instruction.

[0047] Optionally, the device further comprises:

[0048] a third receiving module, configured to receive a mark state change signal through the first module, and determine the mark state information according to the mark state change signal;

[0049] A first control module, configured to control the second module to be in a power supply state based on the marking state information through the first module;

[0050] The determination module is specifically used for:

[0051] When it is determined according to the tag state information that the tag state has changed, the second module of the electronic tag sends a response message of the first instruction to the reader / writer.

[0052] Optionally, the third receiving module includes any one of the following:

[0053] A first receiving submodule, configured to receive, through the first module, a marking state change signal sent by the marking device in a target signal transmission manner;

[0054] The second receiving submodule is used to receive a mark state change signal input by the target object through the first module.

[0055] Optionally, the device further comprises:

[0056] The second control module is used to control the power state of the second module to be a power-off state or a low power consumption state through the first module, and the low power consumption state is a state in which the operating power of the second module is less than a preset value.

[0057] Optionally, the first module includes a first submodule and a second submodule, and the third receiving module includes:

[0058] a third receiving submodule, configured to receive a flag state change signal through the first submodule;

[0059] The fourth receiving submodule is configured to obtain the mark state change signal through the second submodule, and convert the mark state change signal into the mark state information.

[0060] In a fifth aspect, an embodiment of the present application provides a response device for an electronic tag, the device comprising:

[0061] A first sending module, used for sending a radio frequency signal to an electronic tag;

[0062] A second sending module, used for sending a first instruction to the electronic tag;

[0063] The receiving module is used to receive a response message of the first instruction sent by the electronic tag according to the marking state information.

[0064] Optionally, the device further comprises:

[0065] The third sending module is used to send an instruction notification to the marking device, where the instruction notification is used to instruct the marking device to send a marking state change signal to the electronic tag.

[0066] In a sixth aspect, an embodiment of the present application provides a marking device for an electronic tag, the device comprising:

[0067] A receiving module, used for receiving a command notification sent by a reader;

[0068] The sending module is used to send a mark change signal to the electronic tag according to the instruction notification.

[0069] In the seventh aspect, an embodiment of the present application provides an electronic device, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein when the program is executed by the processor, the steps of the electronic tag response method described in the first and second aspects are implemented, or the steps of the electronic tag marking method described in the third aspect are implemented.

[0070] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the electronic tag response method described in the first and second aspects are implemented, or the steps of the electronic tag marking method described in the third aspect are implemented.

[0071] In a ninth aspect, a computer program product is provided, comprising computer instructions, which, when executed by a processor, implement the steps of the electronic tag response method as described in the first and second aspects, or implement the steps of the electronic tag marking method as described in the third aspect.

[0072] In the embodiment of the present application, the electronic tag controls the power state of the second module and the response to the reader / writer according to the tag status information, can selectively respond to the reader / writer, and can improve the reliability of the electronic tag response. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0074] Figure 1 This is a schematic diagram of a handheld device reading tag information provided by an embodiment of the present application;

[0075] Figure 2 This is a schematic diagram of the interaction between a traditional reader and an electronic tag provided in an embodiment of the present application;

[0076] Figure 3 This is one of the flow charts of a tag response method provided in an embodiment of the present application;

[0077] Figure 4 It is a schematic diagram of the structure of an electronic tag provided in an embodiment of the present application;

[0078] Figure 5 This is the second flowchart of a tag response method provided in an embodiment of the present application;

[0079] Figure 6 It is a flow chart of a label marking method provided in an embodiment of the present application;

[0080] Figure 7 This is a workflow diagram of an electronic tag provided in an embodiment of the present application;

[0081] Figure 8 This is the third flowchart of a tag response method provided in an embodiment of the present application;

[0082] Fig. 9 This is one of the structural schematic diagrams of a label response device provided in an embodiment of the present application;

[0083] Fig.10 This is a second structural diagram of a tag response device provided in an embodiment of the present application;

[0084] Fig.11 It is a structural schematic diagram of a label marking device provided in an embodiment of the present application;

[0085] Fig.12 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0086] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0087] In the warehouse management process, when it is necessary to select some of the multiple tags to respond, there needs to be a method to filter the tags that do not meet the current status, so that the tags that do not meet the conditions do not respond and do not participate in the instruction operation. For example, there are multiple RFID tags in a pile of goods, and a handheld device is used to read the EPC information of a single tag among the multiple RFID tags. Figure 1 shown.

[0088] The interaction process between traditional readers and electronic tags can be found in Figure 2 As shown, the Select instruction can read, filter and compare the memory area at the specified address in the USER area, but this method can only be applied to active RFID tags based on sensors, because traditional sensors need to be powered by themselves, and the tags need to read sensor data and then write sensor values ​​into the memory to provide filtering data basis for the Select instruction. Therefore, the tag needs an independent power supply to work properly. In addition, since the Select instruction may be lost or unresponsive, it is impossible to confirm whether the Select is valid when executing the Query instruction, and filtering failure may occur without knowing it.

[0089] In order to solve the problem of filtering and selecting passive tags within the coverage range of the signal to be stimulated, the embodiments of the present application provide a response method, a marking method, a device and an electronic device for an electronic tag to solve the problem of poor reliability of the selected tag response method.

[0090] See also Figure 3 , Figure 3 is a flow chart of a response method of an electronic tag provided in an embodiment of the present application, such as Figure 3 As shown, the method comprises the following steps:

[0091] Step 301: The electronic tag receives a first instruction sent by a reader;

[0092] Step 302: The electronic tag acquires tag status information based on the first instruction, wherein the tag status information is used to control the power state of a second module in the electronic tag, and the second module is used to respond to the instruction sent by the reader;

[0093] Step 303: The electronic tag determines a response result to the first instruction according to the marking state information.

[0094] The tag status information is used to control the power status of the second module in the electronic tag to be a power-off status, a low power consumption status or a power-on status.

[0095] The second module may include any one or more of a digital baseband processor, a memory, and the like.

[0096] In an optional embodiment, when it is determined based on the tag status information that the tag status has changed, the power supply of the second module in the electronic tag is controlled to be in a power-on state; when the tag status has not changed, the power supply of the second module is controlled to be in a power-off state or a low-power consumption state.

[0097] In another optional embodiment, when it is determined according to the tag status information that the tag status is in a preset state, the power supply of the second module in the electronic tag is controlled to be in a power-on state; when the tag status is not in the above-mentioned preset state, the power supply of the second module is controlled to be in a power-off state or a low-power consumption state.

[0098] In another optional embodiment, when it is determined according to the tag status information that the tag state is in the first state, the power supply of the second module in the electronic tag is controlled to be in the power supply state; when the tag state is in the second state, the power supply of the second module in the electronic tag is controlled to be in the low power consumption state; when the tag state is in the third state, the power supply of the second module in the electronic tag is controlled to be in the power-off state.

[0099] Among them, the second module is used to respond to the instructions sent by the reader / writer. When the second module is in a power-on state, the electronic tag controls the second module to respond to the first instruction according to the tag status information. When the second module is in a power-off state or a low-power state, the electronic tag determines not to respond to the first instruction according to the tag status information.

[0100] In the embodiment of the present application, the second module of the electronic tag decides whether to participate in power supply according to the tag status information, which can save radio frequency power supply resources. And the second module of the electronic tag can selectively reply or differentially reply to the first instruction. When selecting a tag to reply, it can effectively avoid reply messages without relevant tags, and effectively avoid the reply collision problem of RFID tags, which can improve inventory efficiency.

[0101] Optionally, before the electronic tag receives the first instruction sent by the reader / writer, the method further includes:

[0102] The electronic tag receives a radio frequency signal sent by a reader;

[0103] The electronic tag charges the first module in the electronic tag based on the radio frequency signal;

[0104] The electronic tag acquires the marking state information based on the first instruction, including:

[0105] The first module of the electronic tag obtains tag status information based on the first instruction.

[0106] Among them, the electronic tag has an extended function. The electronic tag receives a continuous wave (CW) excitation signal (radio frequency signal) and instructions sent by a RFID reader and realizes the functions of a traditional RFID electronic tag.

[0107] The internal structure of the electronic tag is as follows: Figure 4 As shown, it includes an antenna, a radio frequency front-end circuit, a signal sensing module, a tag signal management and control module, a digital baseband processor and a memory.

[0108] The above-mentioned first module may include a signal sensing module and a marking signal management and control module, and the first module has the functions of receiving signals and converting signals; the second module includes a digital baseband processor and a memory for responding to the first instruction.

[0109] After receiving the radio frequency signal sent by the reader, the electronic tag charges the first module according to the radio frequency signal, and does not supply power to the second module. When the first module receives the first instruction, it obtains the tag status information according to the first instruction, and determines whether to supply power to the second module according to the tag status information, which can save radio frequency power supply resources.

[0110] Optionally, after the electronic tag receives the first instruction sent by the reader, the method further includes:

[0111] The first module of the electronic tag receives a marking state change signal, and determines the marking state information according to the marking state change signal;

[0112] The first module of the electronic tag controls the second module to be in a power supply state based on the tag state information;

[0113] The determining a response result to the first instruction according to the marking state information includes:

[0114] When it is determined according to the tag state information that the tag state has changed, the second module of the electronic tag sends a response message of the first instruction to the reader / writer.

[0115] Among them, after receiving the tag state change signal, the first module of the electronic tag converts the tag state change signal into tag state information, and controls the RF front-end circuit to power the second module according to the tag state information, so that the second module of the electronic tag sends a response message of the first instruction to the reader / writer.

[0116] In this way, the second module of the electronic tag decides whether to participate in power supply according to the tag status information, which can save radio frequency power supply resources.

[0117] Optionally, the first module of the electronic tag receives a marking state change signal, including any one of the following:

[0118] The first module of the electronic tag receives a marking state change signal sent by a marking device through a target signal transmission method;

[0119] The first module of the electronic tag receives a tag state change signal input by a target object.

[0120] The marking state change signal may be sent by a marking device, and the marking device may send the signal through a target signal transmission method (electromagnetic, inductive, photoelectric, etc.).

[0121] For example, a plurality of goods are placed on a conveyor belt, each of which is affixed with an electronic tag. During the operation of the conveyor belt, when the goods are conveyed to the end of the conveyor belt one by one, when the tag approaches the marking device, the marking device sends a marking state change signal through electromagnetic, and the tag receives the marking state change signal. In this way, the multiple tag responses on the conveyor belt are selected one by one.

[0122] For another example, in a scenario where multiple electronic tags exist, only some of the tags are controlled to be illuminated by light, thereby achieving selection of some of the electronic tags.

[0123] In addition, the tag state change signal can also be received through external force input, such as a contact switch, a pressure switch, etc. The target object can be a person or an object, for example, input through the collision of the object with the electronic tag, or input by a person pressing with his hand.

[0124] Optionally, before receiving the mark state change signal through the first module, the method further includes:

[0125] The first module of the electronic tag controls the power state of the second module to be a power-off state or a low-power state, and the low-power state is a state in which the operating power of the second module is less than a preset value.

[0126] After the RF front end receives the RF signal, the first module is powered on first, while the second module is in a power-off or low-power state, which can save RF power supply resources.

[0127] Wherein, in the low power consumption state, the operating power of the second module is lower than a preset power value.

[0128] Optionally, the first module includes a first submodule and a second submodule, and the first module of the electronic tag receives a marking state change signal, including:

[0129] The first submodule of the electronic tag receives a marking state change signal;

[0130] The second submodule of the electronic tag acquires the marking state change signal and converts the marking state change signal into the marking state information.

[0131] The first submodule may be a signal sensing module, and the second submodule may be a tag signal management control module. The first submodule receives a tag state change signal, and the second submodule converts the signal into tag state information, and decides whether to start power supply for the second module according to the tag state information.

[0132] In the electronic tag in the embodiment of the present application, the second module of the electronic tag is determined by the first module whether to participate in the power supply work, thereby saving radio frequency power supply resources, and the electronic tag can determine whether to send a response message to the first instruction based on the tag status information, thereby realizing selective response to the electronic tag.

[0133] See also Figure 5 , Figure 5 is a flow chart of a response method of an electronic tag provided in an embodiment of the present application, such as Figure 5 As shown, the method comprises the following steps:

[0134] Step 501: The reader sends a radio frequency signal to the electronic tag;

[0135] Step 502: the reader sends a first instruction to the electronic tag;

[0136] Step 503: The reader / writer receives a response message of the first instruction sent by the electronic tag according to the tag status information.

[0137] The relevant explanation of the radio frequency signal is referred to the description in the above embodiment, which will not be repeated here. After the reader sends the first instruction, after one or more of the electronic tags receive it, the electronic tags check the tag status information and selectively reply or differentially reply to the first instruction according to their respective tag status information, and the reader receives the response message sent by the electronic tag according to the tag status information.

[0138] The response message includes but is not limited to the tag's unique identification information (RN16), marking signal status, verification information, etc. The tag's unique identification information can be used for subsequent interactive identification features between the reader and the electronic tag.

[0139] Optionally, before the reader / writer sends the first instruction to the electronic tag, the method further includes:

[0140] The reader / writer sends a command notification to the marking device, where the command notification is used to instruct the marking device to send a marking state change signal to the electronic tag.

[0141] The reader / writer sends a command notification to the marking device, and the marking device sends a marking state change signal to the electronic tag according to the command notification, thereby controlling the tag to selectively respond.

[0142] In the electronic tag response method of this embodiment, the reader / writer can control the electronic tag to respond selectively and can improve the reliability of the electronic tag response.

[0143] See also Figure 6 , Figure 6 is a flow chart of a marking method for an electronic tag provided in an embodiment of the present application, such as Figure 6 As shown, the method comprises the following steps:

[0144] Step 601: The marking device receives a command notification sent by the reader / writer;

[0145] Step 602: The marking device sends a marking change signal to the electronic tag according to the instruction notification.

[0146] After receiving the instruction notification sent by the reader, the marking device sends a marking state change signal to the electronic tag through the target signal transmission method (electromagnetic, inductive, photoelectric, etc.). The specific sending process can be referred to the above description and will not be repeated here.

[0147] In the electronic tag marking method of this embodiment, the reader / writer can control the electronic tag to respond selectively based on the marking device, and can improve the reliability of the electronic tag response.

[0148] To facilitate understanding of this embodiment, the execution subject and the interaction process involved in this application are illustrated below in combination with specific implementation methods.

[0149] The execution entities involved in this application include:

[0150] 1. Electronic tag. The structure diagram of the RFID electronic tag with extended functions is as follows Figure 4 As shown, the electronic tag is responsible for receiving the CW excitation signal and instructions sent by the RFID reader and writer, and realizing the functions of a traditional RFID electronic tag. In addition, the internal structure of the RFID electronic tag also includes a signal sensing module and a tag signal management and control module.

[0151] Among them, the signal sensing module is an interface function that inputs signals through unrestricted methods such as pressure, electromagnetic, etc.

[0152] The marking signal management control module receives the signal from the signal sensing module and converts it into a marking state function, and determines whether to start power supply for modules such as the digital baseband processor and the EEPROM memory according to the marking state.

[0153] The tag signal management control module is powered only by the RF front-end excitation, and realizes the signal sensing capability of the signal sensing module, that is, it adopts a passive tag power supply method, and no independent battery power supply is required in the new RFID electronic tag.

[0154] Before obtaining the marking state change signal, the marking signal management and control module keeps the digital baseband, memory and other modules in a non-powered or low-power state.

[0155] As a switching device, the electronic tag controls the switching function of the digital baseband and storage power supply. The specific method is: after the RF front end is excited and powered, the digital baseband and related modules are not activated first. The tag status management module waits for the signal sensor module to trigger a response. After obtaining the tag status change signal, the RF front end is controlled to start powering other modules and activating the digital baseband processor. The above process can be seen in Figure 7 The data source for the electronic tag to check the tag status is the tag signal status, which is obtained by the digital baseband to the tag signal management control module.

[0156] The front-end radio frequency circuit can supply power to the tag signal control module and the signal sensing module simultaneously or in a sequence as required by the actual situation.

[0157] The change of the marking state value of the signal sensing module in the electronic tag does not necessarily depend on the marking device, but can also be input as a signal through the change of physical switches such as contact switches and pressure switches. The marking state control management module can set the marking state according to its physical change.

[0158] Among them, the marking device can send a marking state change signal to the electronic tag through an unrestricted signal transmission method such as electromagnetic, inductive, photoelectric, etc., which is explained below through a specific application scenario.

[0159] For example, if a Hall magnetic induction switch is used as a signal receiving trigger for signal sensing, its marking device can use a device composed of electromagnetic components. After receiving the instruction notification sent by the RFID reader, the marking device turns on the electromagnetic switch to generate a magnetic field within a specific range, acting on the Hall magnetic induction switch of the extended function tag in the nearby range. After the signal sensor module detects the trigger, it is marked as a trigger state and turns on the power supply function of the electronic tag, waiting for subsequent instructions from the RFID reader. When the device composed of electromagnetic components is deployed at the door or gate, it can realize the monitoring function of entering and leaving the door, effectively reducing the misjudgment of entering and leaving the door caused by the movement of other tags nearby.

[0160] 2. Marking device

[0161] A tag state change signal is sent to the electronic tag through an unrestricted signal transmission method such as electromagnetic, inductive, photoelectric, etc., to cooperate to complete the change of the tag state value of the electronic tag.

[0162] The marking device can also receive the instruction notification sent by the reader / writer, and send a marking state change signal to the electronic tag according to the instruction notification.

[0163] 3. Extended Function Reader / Writer

[0164] It has the functions of a traditional RFID reader / writer, and the extended function reader / writer can optionally send notification instructions to the marking device.

[0165] A first instruction is sent to the electronic tag, and a response message of the electronic tag to the first instruction is waited for. After receiving the first instruction, the electronic tag selectively responds to the first instruction or responds differently according to its respective tag status.

[0166] The first instruction response reply message can use collision detection and other methods to ensure the validity of the message, and the change of the sending timing of the first instruction and the relationship between other instruction sequences will not affect its function.

[0167] See also Figure 8 The process of the electronic tag response method of the present application includes:

[0168] 1. The RFID reader sends out a CW excitation signal. Multiple electronic tags within the range of the excitation signal are stimulated to start charging. After charging, the electronic tags supply power to the tag signal control module and the signal sensing module. At this time, the electronic tag does not supply power to other modules such as the digital baseband processor, but only waits for the signal sensing module to receive data changes. The signal sensing module can receive data changes through its own physical switch input or through the tag state change signal sent by the receiving tag device.

[0169] 2. The reader sends a command notification to the marking device, and the marking device sends a tag state change signal to the electronic tag according to the command notification, and the signal sensor module receives the signal. After receiving the tag state change signal sent by the marking device, the electronic tag waits to receive the first command message sent by the RFID reader.

[0170] 3. After the signal sensing module is triggered, the tag signal management and control module determines the tag state and updates the tag state information. When it is determined that the tag state changes, it controls the power supply of other modules such as the digital baseband processor.

[0171] 4. The RFID reader may send a first instruction message to the electronic tag once or multiple times at intervals, and wait for the marked electronic tag to respond to the first instruction.

[0172] 5. After receiving the first command message, the electronic tag checks its tag status. If the tag status changes, it replies to the first command response message, which should carry information such as the electronic tag identification; if the tag status detection does not change, it does not reply to the response message.

[0173] The signal sensing module and tag status management module in the electronic tag are implemented by the RF front-end analog circuit and powered by the RF front-end voltage regulator circuit. The tag status management module provides the digital baseband processor with a status data interface function for the tag status.

[0174] The above process is for the case of a marked electronic tag, which corresponds to Figure 8 The electronic tag located on the right side of the reader.

[0175] In addition, for unmarked electronic tags, you can Figure 8 The electronic tag located on the left side of the reader / writer, in this case, the electronic tag's response method may include the following process:

[0176] 1. The RFID reader sends out a CW excitation signal. Multiple electronic tags within the range of the excitation signal are stimulated to start charging. After charging, the electronic tags supply power to the tag signal control module and the signal sensing module. At this time, the electronic tags do not supply power to other modules such as the digital baseband processor, but only wait for the signal sensing module to receive data changes to trigger.

[0177] 2. The RFID reader / writer may send the first instruction message to the electronic tag once or multiple times at intervals.

[0178] 3. The electronic tag checks the tag status according to the first instruction message. If it is found that the tag status has not changed, it does not reply with a response message.

[0179] In the response method of the electronic tag in the embodiment of the present application, the digital baseband processor and memory and other modules of the electronic tag are controlled by the tag signal management module to decide whether to participate in the power supply work, thereby saving RF power supply resources, realizing the tag information detection of the signal sensing module, and the tag state is determined by the signal transmitted by the external tag device.

[0180] After the reader sends a command notification to the marking device, the marking device sends a tag change signal to the electronic tag to trigger the electronic tag to power on and respond to the first command. Since the electronic tag's first command response needs to be determined by the signal transmitted by the external marking device, the electronic tag generates a selective response. The reader can select one or several tags with specified characteristics from multiple tags covered by the excitation signal for reading and writing operations, which can improve the reliability of selective responses.

[0181] The response method of the electronic tag in the embodiment of the present application can be applied to the state filtering selection method of the passive tag, and can solve the problem that the label printer writes the wrong label due to power setting when writing EPC in the case of continuous or multiple labels. In the case of high-power antennas such as cellular antennas, the identification and positioning of a single or a whole pile of multiple items is more accurate.

[0182] The embodiment of the present application does not conflict with or affect RFID-related standards, and can effectively avoid response messages without relevant tags, thereby effectively avoiding the response collision problem of RFID tags and improving inventory efficiency.

[0183] The electronic tag response method provided in the embodiment of the present application can be executed by a response device of the electronic tag. The electronic tag response device is described below by taking the electronic tag response method executed by the response device of the electronic tag as an example.

[0184] See also Fig. 9 , Fig. 9 is a schematic diagram of the structure of a response device of an electronic tag provided in an embodiment of the present application, such as Fig. 9 As shown, the response device 900 of the electronic tag includes:

[0185] A first receiving module 901 is used to receive a first instruction sent by a reader;

[0186] An acquisition module 902, configured to acquire tag status information based on the first instruction, wherein the tag status information is used to control the power status of a second module in the electronic tag, and the second module is used to respond to the instruction sent by the reader;

[0187] The determination module 903 is used to determine a response result to the first instruction according to the marking state information.

[0188] Optionally, the device further comprises:

[0189] A second receiving module is used to receive the radio frequency signal sent by the reader;

[0190] A charging module, used for charging the first module in the electronic tag based on the radio frequency signal;

[0191] The acquisition module is specifically used for:

[0192] The marking state information is acquired by the first module based on the first instruction.

[0193] Optionally, the device further comprises:

[0194] a third receiving module, configured to receive a mark state change signal through the first module, and determine the mark state information according to the mark state change signal;

[0195] A first control module, configured to control the second module to be in a power supply state based on the marking state information through the first module;

[0196] The determination module is specifically used for:

[0197] When it is determined according to the tag state information that the tag state has changed, the second module of the electronic tag sends a response message of the first instruction to the reader / writer.

[0198] Optionally, the third receiving module includes any one of the following:

[0199] A first receiving submodule, configured to receive, through the first module, a marking state change signal sent by the marking device in a target signal transmission manner;

[0200] The second receiving submodule is used to receive a mark state change signal input by the target object through the first module.

[0201] Optionally, the device further comprises:

[0202] The second control module is used to control the power state of the second module to be a power-off state or a low power consumption state through the first module, and the low power consumption state is a state in which the operating power of the second module is less than a preset value.

[0203] Optionally, the first module includes a first submodule and a second submodule, and the third receiving module includes:

[0204] a third receiving submodule, configured to receive a flag state change signal through the first submodule;

[0205] The fourth receiving submodule is configured to obtain the mark state change signal through the second submodule, and convert the mark state change signal into the mark state information.

[0206] In the embodiment of the present application, the response device of the electronic tag may be an electronic device or a part of an electronic device, such as an electronic tag.

[0207] The response device of the electronic tag can achieve Figure 3 The various processes implemented in the method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described again here.

[0208] See also Fig.10 , Fig.10 is a schematic diagram of the structure of a response device of an electronic tag provided in an embodiment of the present application, such as Fig.10 As shown, the response device 1000 of the electronic tag includes:

[0209] The first sending module 1001 is used to send a radio frequency signal to an electronic tag;

[0210] A second sending module 1002, configured to send a first instruction to the electronic tag;

[0211] The receiving module 1003 is configured to receive a response message to the first instruction sent by the electronic tag according to the marking state information.

[0212] Optionally, the device further comprises:

[0213] The third sending module is used to send an instruction notification to the marking device, where the instruction notification is used to instruct the marking device to send a marking state change signal to the electronic tag.

[0214] In the embodiment of the present application, the response device of the electronic tag may be an electronic device, or a part of an electronic device, such as an integrated circuit or a chip, wherein the electronic device may be a reader / writer.

[0215] The response device of the electronic tag can achieve Figure 5 The various processes implemented in the method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described again here.

[0216] The electronic tag marking method provided in the embodiment of the present application can be executed by a marking device for the electronic tag. The electronic tag marking device is described below by taking the electronic tag marking method executed by the marking device for the electronic tag as an example.

[0217] See also Fig.11 , Fig.11 is a structural diagram of a marking device of an electronic tag provided in an embodiment of the present application, such as Fig.11 As shown, the marking device 1100 of the electronic tag includes:

[0218] The receiving module 1101 is used to receive the instruction notification sent by the reader;

[0219] The sending module 1102 is used to send a tag change signal to the electronic tag according to the instruction notification.

[0220] The marking device of the electronic tag can achieve Figure 6 The various processes implemented in the method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described again here.

[0221] In the embodiment of the present application, the marking device of the electronic tag may be the marking device described in the above method embodiment, or may be a component in the marking device.

[0222] like Fig.12 As shown, an embodiment of the present application further provides an electronic device 1200, comprising: a processor 1201, a memory 1202, and a program stored on the memory 1202 and executable on the processor 1201. When the program is executed by the processor 1201, each process of the above-mentioned electronic tag response method and electronic tag marking method embodiments is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0223] The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each process of the above-mentioned electronic tag response method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0224] The present application also provides a computer program product, including computer instructions, which, when executed by a processor, implement the above Figures 3 to 6 The various processes of the method embodiment shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0225] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0226] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0227] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A response method of an electronic tag, characterized in that: The method comprises: The electronic tag receives a first instruction sent by the reader; The electronic tag acquires tag status information based on the first instruction, wherein the tag status information is used to control the power state of a second module in the electronic tag, and the second module is used to respond to the instruction sent by the reader; The electronic tag determines a response result to the first instruction according to the tag status information.

2. The method according to claim 1, characterized in that Before the electronic tag receives the first instruction sent by the reader / writer, the method further includes: The electronic tag receives a radio frequency signal sent by a reader; The electronic tag charges the first module in the electronic tag based on the radio frequency signal; The electronic tag acquires the marking state information based on the first instruction, including: The first module of the electronic tag acquires tag status information based on the first instruction.

3. The method according to claim 2, characterized in that After the electronic tag receives the first instruction sent by the reader, the method further includes: The first module of the electronic tag receives a marking state change signal, and determines the marking state information according to the marking state change signal; The first module of the electronic tag controls the second module to be in a power supply state based on the tag state information; The determining a response result to the first instruction according to the marking state information includes: When it is determined according to the tag state information that the tag state has changed, the second module of the electronic tag sends a response message of the first instruction to the reader / writer.

4. The method according to claim 3, characterized in that The first module of the electronic tag receives a marking state change signal, including any of the following: The first module of the electronic tag receives a marking state change signal sent by a marking device through a target signal transmission method; The first module of the electronic tag receives a tag state change signal input by a target object.

5. The method according to any one of claims 2 to 4, characterized in that Before the first module of the electronic tag receives the marking state change signal, the method further includes: The first module of the electronic tag controls the power state of the second module to be a power-off state or a low-power state, and the low-power state is a state in which the operating power of the second module is less than a preset value.

6. The method according to claim 3 or 4, characterized in that: The first module includes a first submodule and a second submodule, and the first module of the electronic tag receives a marking state change signal, including: The first submodule of the electronic tag receives a marking state change signal; The second submodule of the electronic tag acquires the marking state change signal and converts the marking state change signal into the marking state information.

7. A response method of an electronic tag, characterized in that: The method comprises: The reader sends a radio frequency signal to the electronic tag; The reader / writer sends a first instruction to the electronic tag; The reader / writer receives a response message of the first instruction sent by the electronic tag according to the tag status information.

8. The method according to claim 7, characterized in that Before the reader / writer sends the first instruction to the electronic tag, the method further includes: The reader / writer sends a command notification to the marking device, where the command notification is used to instruct the marking device to send a marking state change signal to the electronic tag.

9. A method for marking an electronic tag, characterized in that: The method comprises: The marking device receives the instruction notification sent by the reader; The marking device sends a marking change signal to the electronic tag according to the instruction notification.

10. A response device for an electronic tag, characterized in that: The device comprises: A first receiving module, used for receiving a first instruction sent by the reader; an acquisition module, used for acquiring tag status information based on the first instruction, wherein the tag status information is used for controlling the power state of a second module in the electronic tag, and the second module is used for responding to the instruction sent by the reader; A determination module is used to determine a response result to the first instruction according to the marking state information.

11. A response device for an electronic tag, characterized in that: The device comprises: A first sending module, used for sending a radio frequency signal to an electronic tag; A second sending module, used for sending a first instruction to the electronic tag; The receiving module is used to receive a response message of the first instruction sent by the electronic tag according to the marking state information.

12. An electronic tag marking device, characterized in that: The device comprises: A receiving module, used for receiving a command notification sent by a reader; The sending module is used to send a mark change signal to the electronic tag according to the instruction notification.

13. An electronic device, characterized in that: include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein when the program is executed by the processor, the program implements the steps of the response method of the electronic tag as described in any one of claims 1 to 6, or implements the steps of the response method of the electronic tag as described in claim 7 or 8, or implements the steps of the marking method of the electronic tag as described in claim 9.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the response method of the electronic tag as described in any one of claims 1 to 6, or implements the steps of the response method of the electronic tag as described in claim 7 or 8, or implements the steps of the marking method of the electronic tag as described in claim 9.

15. A computer program product, characterized in that The method comprises computer instructions which, when executed by a processor, implement the steps of the electronic tag response method as described in any one of claims 1 to 6, or implement the steps of the electronic tag response method as described in claim 7 or 8, or implement the steps of the electronic tag marking method as described in claim 9.

Images