CN118333069A - Equipment checking method, device, communication equipment and readable storage medium - Google Patents

Equipment checking method, device, communication equipment and readable storage medium Download PDF

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Publication number
CN118333069A
CN118333069A CN202310033213.3A CN202310033213A CN118333069A CN 118333069 A CN118333069 A CN 118333069A CN 202310033213 A CN202310033213 A CN 202310033213A CN 118333069 A CN118333069 A CN 118333069A
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China
Prior art keywords
communication device
command
inventory
indication information
communication
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CN202310033213.3A
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Inventor
应祚龙
李东儒
吴凯
简荣灵
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN202310033213.3A priority Critical patent/CN118333069A/en
Priority to PCT/CN2024/071029 priority patent/WO2024149181A1/en
Publication of CN118333069A publication Critical patent/CN118333069A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation

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  • Engineering & Computer Science (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a device checking method, a device, communication equipment and a readable storage medium, belonging to the technical field of wireless communication, wherein the device checking method comprises the following steps: the method comprises the steps that a first communication device receives a first command, wherein the first command is used for indicating to count the first communication device, the first command comprises count indication information, and the count indication information is used for indicating relevant information used when the first communication device is counted; the first communication device determines whether to respond to the first command according to the inventory indication information.

Description

Equipment checking method, device, communication equipment and readable storage medium
Technical Field
The application belongs to the technical field of wireless communication, and particularly relates to a device checking method, a device, communication equipment and a readable storage medium.
Background
In the process of checking back-scatter communication devices such as tags, there are cases where the same back-scatter communication device is checked multiple times by the same reader (which may also be referred to as reader). In addition, when coverage of a plurality of readers is overlapped, there are cases where the same backscatter communication device is checked by a different reader a plurality of times. In both cases, repeated inventorying of the backscatter communication devices is prone to waste of resources.
Disclosure of Invention
The embodiment of the application provides a device checking method, a device, a communication device and a readable storage medium, which can solve the problem of resource waste caused by the fact that the same back reflection communication device is checked by the same reader or different readers for a plurality of times in the prior art.
In a first aspect, a device inventory method is provided, including:
The method comprises the steps that a first communication device receives a first command, wherein the first command is used for indicating to count the first communication device, the first command comprises count indication information, and the count indication information is used for indicating relevant information used when the first communication device is counted;
the first communication device determines whether to respond to the first command according to the inventory indication information.
In a second aspect, there is provided an apparatus checking method, including:
The second communication device sends a first command, wherein the first command is used for indicating to count the first communication device, the first command comprises counting indication information, and the counting indication information is used for indicating relevant information used when the first communication device is counted.
In a third aspect, there is provided an apparatus checking device, including:
The first receiving module is used for receiving a first command, wherein the first command is used for indicating to count the first communication equipment, the first command comprises counting indication information, and the counting indication information is used for indicating relevant information used when the first communication equipment is counted;
and the determining module is used for determining whether to respond to the first command according to the inventory indication information.
In a fourth aspect, there is provided an apparatus checking device, including:
The first sending module is used for sending a first command, wherein the first command is used for indicating to count the first communication equipment, the first command comprises counting indication information, and the counting indication information is used for indicating relevant information used when the first communication equipment is counted.
In a fifth aspect, there is provided a communication device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the first or second aspect.
In a sixth aspect, a communication device is provided, including a processor and a communication interface, where the communication interface is configured to receive a first command, where the first command is configured to instruct to inventory a first communication device, and the first command includes inventory indication information, where the inventory indication information is configured to indicate relevant information used when inventory is performed on the first communication device; the processor is used for determining whether to respond to the first command according to the inventory indication information.
In a seventh aspect, a communication device is provided, including a processor and a communication interface, where the communication interface is configured to send a first command, where the first command is configured to instruct to inventory a first communication device, and the first command includes inventory indication information, where the inventory indication information is configured to indicate relevant information used when inventory is performed on the first communication device.
In an eighth aspect, there is provided a communication system comprising: a first communication device operable to perform the steps of the method as described in the first aspect, and a second communication device operable to perform the steps of the method as described in the second aspect.
In a ninth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.
In a tenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.
In an eleventh aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to implement the steps of the method according to the first or second aspect.
In the embodiment of the application, the first communication device can determine whether to respond to the first command according to the received counting indication information in the first command for equipment counting, but not respond to the first command under any condition, so that the first communication device is prevented from being counted for a plurality of times, and the counting efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a communication method of a reader and a tag;
FIG. 2 is a schematic diagram of the internal structure of a reader and tag;
FIG. 3 is a schematic diagram of information transfer between a reader and a tag;
FIG. 4 is a flow chart of a tag receiving and transmitting data;
FIG. 5 is a schematic flow chart of querying and accessing a single tag;
fig. 6 is a flowchart of a device inventory method performed by a first communication device according to an embodiment of the present application;
Fig. 7 is a flowchart of a device inventory method performed by a second communication device according to an embodiment of the present application;
fig. 8 is a schematic diagram of an application scenario of an apparatus checking method according to an embodiment of the present application;
FIG. 9 is a schematic diagram of an apparatus for checking a device according to an embodiment of the present application;
FIG. 10 is a second schematic diagram of an apparatus for checking a device according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 12 is a schematic hardware structure of a terminal according to an embodiment of the present application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.
It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6 th Generation (6G) communication systems.
The technical content to which the present application relates is first briefly described below.
1. Backscatter communications (Backscatter Communication, BSC)
Backscatter communication refers to the transmission of its own information by signal modulation of radio frequency signals in other devices or environments by a backscatter communication device.
Referring to fig. 1, fig. 1 is a schematic diagram of a communication method between a reader and a tag, wherein the reader and the tag have two links (links) before, one is a reader-to-tag link, and one is a tag-to-reader link (backscatter link), and the reader sends a command (command) or an energy carrier signal (wave) to the tag through the reader-to-tag link, and in the present scheme, the reader continuously sends the energy carrier signal to the tag. The tag transmits a backscatter signal over the tag-to-reader link.
A simple implementation of the tag transmitting the backscatter signal is that the tag reflects the incoming carrier signal when a '1' transmission is required and does not reflect when a '0' transmission is required.
Referring to fig. 2, fig. 2 is a schematic diagram of the internal structure of the reader and the tag.
The backscatter communication device controls the reflection coefficient Γ of the circuit by adjusting its internal impedance, thereby changing the amplitude, frequency, and/or phase, etc. of the incident signal, effecting modulation of the signal. Wherein the reflection coefficient Γ of the signal may be characterized as:
Where Z 0 is the antenna characteristic impedance, Z 1 is the load impedance, θ T is the phase, and j represents the imaginary number. Assuming that the incident signal is S in (t), the output signal is Thus, by reasonably controlling the reflection coefficient Γ, a corresponding amplitude modulation, frequency modulation and/or phase modulation may be achieved.
2. Information transfer between reader and tag in RFID
Please refer to fig. 3, wherein the following operations are included for the reader side:
a. Selecting: and the challenger selects a label group for subsequent inventory or performs encryption inquiry on the label group for subsequent authentication. The selection includes selection and challenge commands.
B. Checking: the process by which the interrogator identifies the tag. The interrogator starts a round of inventory by sending a query command in one of four sessions. One or more tags may reply. The interrogator detects a single tag reply and requests a Protocol Control (PC), an optional extended protocol control (XPC) word, an Electronic Product Code (EPC), and CRC-16 from the tag. A roulette point can only be performed in one session at a time. The inventory includes a plurality of commands.
C. And (3) accessing: the process by which an interrogator transacts (reads, writes, verifies or otherwise participates in) with a single tag. Prior to access, the interrogator identifies and uniquely identifies the tag. The access includes a plurality of commands.
The instructions for reader operation can be seen in tables 1 and 2:
TABLE 1
TABLE 2
The state of the tag is shown in table 3:
TABLE 3 Table 3
The current protocol design of ultra high frequency (Ultra High Frequency, UHF) RFID requires the reader to send a Query command (Query) followed by a tag response (Reply) in the inventory mode, i.e., to generate a 16-bit random number to the reader. The reader then sends the sequence to the tag via an ACK instruction, and the tag sends the relevant data to the reader.
Referring to fig. 4, fig. 4 is a schematic flow chart of receiving and transmitting data by a tag.
Referring to fig. 5, fig. 5 is a schematic flow chart of querying and accessing a single tag.
The device checking method, device, communication device and readable storage medium provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 6, an embodiment of the present application further provides an apparatus checking method, including:
Step 61: the method comprises the steps that a first communication device receives a first command, wherein the first command is used for indicating to count the first communication device, the first command comprises count indication information, and the count indication information is used for indicating relevant information used when the first communication device is counted;
In this embodiment of the present application, optionally, the first communication device receives a first command sent by the second communication device.
In the embodiment of the present application, optionally, the second communication device may be a reader (reader) or a terminal (UE), a base station device, a relay device, or the like. The terminal may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side device called a notebook, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (ultra-Mobile Personal Computer, UMPC), a Mobile internet appliance (Mobile INTERNET DEVICE, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home device having a wireless communication function such as a refrigerator, a television, a washing machine, furniture, etc.), a game machine, a Personal Computer (Personal Computer, a PC), a teller machine, or a self-service machine, etc., the wearable device including: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that, the embodiment of the present application is not limited to a specific type of terminal.
Step 62: the first communication device determines whether to respond to the first command according to the inventory indication information.
In an embodiment of the present application, optionally, the first communication device may be a backscatter communication device, where the backscatter communication device may include:
1) A backscatter communication device in conventional radio frequency identification (Radio Frequency Identification, RFID), typically a Tag, belonging to a Passive internet of things (Internet of Things, ioT) device (Passive-IoT);
2) Semi-passive tags, the downstream reception or upstream reflection of which has a certain amplifying capability;
3) Active transmission capability tags (ACTIVE TAG) that can transmit information to a reader independent of reflection of an incoming signal.
In the embodiment of the application, the first communication device can determine whether to respond to the first command according to the received counting indication information in the first command for equipment counting, but not respond to the first command under any condition, so that the first communication device is prevented from being counted for a plurality of times, and the counting efficiency is improved.
In an embodiment of the present application, optionally, the inventory indication information includes at least one of the following:
counting the purpose;
Counting times;
Counting time.
Wherein the purpose of the inventory refers to the purpose of the inventory device. The inventory purpose may include at least one of the following in the information: inventory quantity, protocol Control (PC), extended Protocol Control (Extended Protocol Control, XPC), and inventory electronics code (Electronic Product Code, EPC). The inventory number, i.e. inventory purpose, is for counting the number of devices. Protocol control and extended protocol control refer to an inventory purpose for inventorying a device supporting protocol control or extended protocol control. The electronic product code is used for checking the electronic product code of the first communication device.
The count number refers to the number of times the first communication device can be counted. The number of counts may be a maximum number of counts. The first communication device may decrease the number of counting by one each time the first command is responded, and when the number of counting is 0, the first communication device may refuse to respond to the first command or feedback not to respond to the current counting, for example, feedback NACK (non-acknowledgement).
The time of counting may refer to the longest time of counting, for example, the longest time of counting is 5s, and the first communication device is not allowed to be counted (the explanation is already counted by other devices at this time) within the longest time of counting (for example, 5s from receiving the time of counting) from receiving the time of counting, and is allowed to be counted beyond the longest time of counting from receiving the time of counting.
In an embodiment of the present application, optionally, the method further includes: the first communication device stores inventory indication information, wherein the inventory indication information is inventory indication information sent through the first command or inventory indication information agreed by a protocol.
In an embodiment of the present application, optionally, after the first communication device receives the first command, the method may further include:
if the first communication equipment does not store the checking indication information, the checking indication information in the first command is stored;
and if the first communication equipment stores the checking indication information, judging whether to update the stored checking indication information.
One embodiment is: the first communication device may directly store the inventory indication information after receiving the first command for the first time, for example, directly store the inventory purpose in the inventory indication information.
One embodiment is: after the first communication device receives the first command for the first time, the first communication device stores the inventory indication information in the first command, for example, stores inventory purposes in the inventory indication information, and starts a timer (timer) after the first communication device stores the inventory indication information, if the first communication device receives the first command again, the first communication device judges whether the timer is overtime, and if the timer is overtime, the inventory indication information stored in the history is updated by adopting the inventory indication information in the newly received first command. If the timer is not overtime, the historically stored inventory indication information does not need to be updated.
One embodiment is: the first communication device stores the inventory indication information agreed by the protocol, for example, stores the inventory purpose agreed by the protocol, and starts a timer (timer) after the first communication device stores the inventory indication information, if the first communication device receives the first command, the first communication device judges whether the timer is overtime, and if the timer is overtime, the inventory indication information stored in the history is updated by adopting the inventory indication information in the received first command. If the timer is not overtime, the historically stored inventory indication information does not need to be updated.
In this embodiment of the present application, optionally, the determining, by the first communication device according to the inventory indication information, whether to respond to the first command includes:
The first communication equipment compares the inventory indication information with the historically stored inventory indication information to obtain a comparison result;
And the first communication equipment determines whether to respond to the first command according to the comparison result.
In the embodiment of the present application, optionally, the inventory indication information includes an inventory purpose; the first communication device determining whether to respond to the first command according to the comparison result comprises:
if the comparison result indicates that the checking purpose is the same as the stored checking purpose, determining that the first command is not fed back or the current checking is not responded by the feedback;
And/or the number of the groups of groups,
And if the comparison result indicates that the inventory purpose is different from the stored inventory purpose, determining to respond to the first command.
For example, different readers (readers) may have the same purpose, for example, when two readers (reader 1 and reader 2) are used to count the number of tags (tags) in the warehouse, if a certain tag first receives a first command sent by the reader1, the first command includes count indication information, the count indication information indicates that the purpose is the number of counts, the tag stores the purpose, if the tag receives the first command sent by the reader2 again, the tag compares the purpose in the first command sent by the reader2 with the stored purpose, if the purpose is the same, it indicates that the tag has been counted, and therefore the tag may not respond to the counting of the reader 2.
In another embodiment, different readers (readers) may have different inventory purposes, for example, inventory purpose of reader1 is to inventory the number of tags (tags) in the warehouse, inventory purpose of reader2 is to inventory EPC of some sort in the warehouse. Assuming that a certain tag first receives a first command sent by a reader1, the first command includes an inventory indication information, the inventory indication information indicates that the inventory purpose is inventory number, the tag stores the inventory purpose, if the tag receives the first command sent by the reader2 again, the tag compares whether the inventory purpose in the first command sent by the reader2 is the same as the stored inventory purpose, at this time, since the inventory purpose in the first command sent by the reader2 is different from the stored inventory purpose, the tag can respond to the inventory of the reader2, and the tag also stores the inventory purpose in the first command sent by the reader2, i.e. can store a plurality of inventory purposes simultaneously.
In this embodiment of the present application, optionally, the determining, by the first communication device according to the inventory indication information, whether to respond to the first command includes:
And under the condition that the stored counting times are 0, the first communication equipment determines that the first command is not fed back or the first command is not fed back to respond to the counting.
In this embodiment of the present application, optionally, the determining, by the first communication device according to the inventory indication information, whether to respond to the first command further includes:
and if the first communication equipment determines to respond to the first command, subtracting one from the stored checking number.
In the embodiment of the application, the number of times of counting can be set as the following two cases:
The first case is: the number of checking is initially set to 1, and after receiving the first command sent by the second communication device, the first communication device subtracts one stored number of checking, that is, becomes 0, and the first communication device does not respond to the first commands of the other devices.
The second case is: the number of counts may be set to any integer greater than or equal to 0, for example 3, which indicates that the first communication device may receive three counts, and after each count, the number of counts is reduced by one, and after 0, the response to the first command is stopped.
In this embodiment of the present application, optionally, the determining, by the first communication device according to the inventory indication information, whether to respond to the first command includes:
And under the condition that the current moment is within the stored checking time, the first communication equipment determines that the first command is not fed back or the feedback does not respond to the current checking.
In an embodiment of the present application, optionally, the device checking method further includes:
The first communication equipment receives a second command, wherein the second command is used for indicating to reset the historically stored inventory indication information;
and the first communication equipment resets the historically stored inventory indication information according to the second command.
Or after the first communication device receives the preset time after receiving the first command, resetting the historically stored inventory indication information according to a predefined value.
Or if the first communication device does not receive the second command or fails to decode the second command within the first time window, the first communication device resets the historically stored inventory indication information according to a predefined value, and the second command is used for indicating to reset the historically stored inventory indication information.
The predefined value may be, for example, a value when the first communication device is not checked.
In an embodiment of the present application, optionally, the device checking method further includes: and if the first communication device receives a third command after sending a first response for responding to the first command and before receiving Acknowledgement (ACK) for the first response, the first communication device enters a checking silence state, and in the checking silence state, the first communication device does not respond to the newly received first command, and the third command is used for indicating the first communication device to enter the checking silence state.
In an embodiment of the present application, optionally, the first response of the first command may include information of the first communication device.
In the embodiment of the present application, the third command may instruct the time Slot (Slot) of the first communication device to be set to a special value, for example, a maximum value of 0xFFFF, so as to instruct the first communication device to enter the silent state. In the embodiment of the application, in the process of checking, each first communication device has a slot value, and only when the slot is a certain special value (for example, slot=0), the first communication device can respond to the checking, so that the slot is set to be a special value which is not slot=0, and the first communication device is prevented from entering the checking flow in the mode.
In an embodiment of the present application, optionally, the device checking method further includes: the first communication device exits the inventory silence state after receiving the acknowledgement ACK.
Referring to fig. 7, an embodiment of the present application further provides an apparatus checking method, including:
Step 71: the second communication device sends a first command, wherein the first command is used for indicating to count the first communication device, the first command comprises counting indication information, and the counting indication information is used for indicating relevant information used when the first communication device is counted.
In this embodiment of the present application, optionally, the second communication device may be a reader or a terminal (UE), a base station device, or a relay device. The terminal may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side device called a notebook, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (ultra-Mobile Personal Computer, UMPC), a Mobile internet appliance (Mobile INTERNET DEVICE, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home device having a wireless communication function such as a refrigerator, a television, a washing machine, furniture, etc.), a game machine, a Personal Computer (Personal Computer, a PC), a teller machine, or a self-service machine, etc., the wearable device including: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that, the embodiment of the present application is not limited to a specific type of terminal.
In the embodiment of the application, the second communication equipment sends the first command for equipment counting, the first command comprises the counting indication information, and the first communication equipment can determine whether to respond to the first command according to the counting indication information instead of responding to the first command under any condition, so that the first communication equipment is prevented from being counted for multiple times, and the counting efficiency is improved.
In an embodiment of the present application, optionally, the inventory indication information includes at least one of the following:
counting the purpose;
Counting times;
Counting time.
In an embodiment of the present application, optionally, the device checking method further includes:
the second communication device receives a first response from the first communication device to the first command.
In this embodiment of the present application, optionally, after the second communication device receives the first response of the first communication device to the first command, the method further includes:
The second communication device sends first interaction information to the third communication device, wherein the first interaction information comprises information of the first communication device checked by the second communication device, and the third communication device is used for checking.
In an embodiment of the present application, optionally, the device checking method further includes:
The second communication equipment receives second interaction information sent by third communication equipment, wherein the second interaction information comprises information of the first communication equipment checked by the third communication equipment; the information of the first communication device includes, for example, an ID, EPC, and the like of the first communication device, and the third communication device is a device for performing inventory.
The second communication device compares the information of the first communication device checked by the second communication device with the information of the first communication device checked by the third communication device;
If repeated first communication equipment exists in the first communication equipment checked by the second communication equipment and the first communication equipment checked by the third communication equipment, deleting the information of the repeated first communication equipment by the second communication equipment; and/or supplementing the information of the different first communication device in the first communication device checked by the third communication device and the first communication device checked by the second communication device into the information of the first communication device checked by the second communication device.
In the embodiment of the application, the number of the third communication devices may be one or more, that is, the second communication device may interact with the checked information of the first communication device of the at least one third communication device.
In an embodiment of the present application, optionally, the device checking method further includes: the second communication device sends a second command, wherein the second command is used for indicating the first communication device to reset the historically stored inventory indication information.
In an embodiment of the present application, optionally, the device checking method further includes: the second communication device sends a third command, the third command being used to instruct the first communication device to enter a silent inventory state.
Optionally, the time slot of the third command indicating the first communication device is set to a special value, so as to indicate the first communication device to enter the silent state.
In an embodiment of the present application, optionally, after the second communication device sends the third command, the method further includes:
The second communication device, after receiving a first response to the first command, sends a first acknowledgement, ACK, to instruct the first communication device to exit the inventory silence state.
The device checking method in the embodiment of the application is described below with reference to a specific application scenario.
Inventive example 1:
In the embodiment of the application, the second communication device sends the first command to the first communication device, and the first command is used for checking the first communication device, wherein the first command comprises the checking indication information, and the first communication device side judges whether to respond according to the checking indication information so as to avoid repeated checking.
The first communication equipment side avoids repeated checking: the first communication equipment side judges whether to respond according to the inventory indication information.
In one embodiment, referring to fig. 8, reader1 and reader2 need to count the number of tags in the warehouse, the count area of the reader1 is the count area a, the count area of the reader2 is the count area B, the count area a and the count area B are overlapped, and the tag 2 is located in the overlapped area. After the tag receives the first command sent by the reader, firstly comparing whether the inventory indication information in the first command received currently and the inventory indication information stored in history are consistent (if the inventory purposes are consistent, whether the inventory purposes are all the inventory numbers) or not, if so, rejecting to respond to the present inventory, and if not, responding to the present inventory. For example, the tag 2 first receives the first command of the reader1, the tag 2 compares whether the inventory purpose in the first command received currently and the stored inventory purpose (the inventory purpose is not checked, for example, is 0) are consistent, if not, the inventory is responded, and the tag 2 stores the inventory purpose in the first command currently (for example, the inventory purpose is 1,1 indicates the inventory number). When the tag 2 receives the first command sent by the reader2, the tag 2 compares whether the counting purpose (counting purpose is 1) and the stored counting purpose (counting purpose is 1) in the first command received currently are consistent, and if so, the tag 2 refuses to respond to the counting.
In one embodiment, the counting indication information received by the tag 2 includes the counting number (for example, the counting number is 1), the tag 2 stores the counting number, the tag 2 firstly receives the first command of the reader1 and responds to the counting of the reader1, and then the counting number is reduced by one (the counting number becomes 0), if the tag 2 receives the first command of the reader2, the counting number is firstly checked, and if the counting number is 0, the counting is refused.
In one embodiment, the counting indication information received by the tag 2 includes a counting time (for example, the counting time is 1 s), the tag 2 stores the counting time, the tag 2 first receives the first command of the reader1 and starts to decrease after responding to the counting of the reader1, if the tag 2 receives the first command of the reader2, the counting time is checked first, and if the counting time is still within the counting time corresponding to the reader1, the response to the current counting is refused.
In one embodiment, the second communication device may send the second command to the first communication device or reset the inventory indication information after a preset time after receiving the first command.
The second communication equipment side avoids repeated checking: the second communication device inventorys the first communication device and interacts with the third communication device with the inventoryed first communication device.
In one embodiment, please refer to fig. 8, reader1 counts tag 1, reader2 counts tag 3, and reader1 and reader2 store tag 3 information through information interaction, and reader1 stores tag 3 information.
When the Reader1 starts counting, the tag 1 and the tag 2 participate in the counting flow at the same time, a first command is received, the tag 1 and the tag 2 send a first response aiming at the first command, the first response comprises an RN16, the Reader1 sends a third command to the tag 1 and the tag 2 to enable the third command to be in a silent state, and information of the tag 1 and the tag 2 is fed back to the Reader2 (the information is not fed back, and the information can also be fed back); when reader2 needs to count, since tag 2 is already in a silent state, only the first response of tag 3 is received, and the first response includes RN16. And finally, the reader1 and the reader2 send ACK to all the silent tags to finish the round of counting.
According to the equipment checking method provided by the embodiment of the application, the execution main body can be an equipment checking device. In the embodiment of the application, an equipment checking method executed by an equipment checking device is taken as an example, and the equipment checking device provided by the embodiment of the application is described.
Referring to fig. 9, fig. 9 further provides an apparatus checking device 90 according to an embodiment of the present application, including:
A first receiving module 91, configured to receive a first command, where the first command is used to instruct to inventory a first communication device, and the first command includes inventory indication information, where the inventory indication information is used to indicate relevant information used when inventory is performed on the first communication device;
A determining module 92, configured to determine whether to respond to the first command according to the inventory indication information.
In the embodiment of the application, whether to respond to the first command can be determined according to the received counting indication information in the first command for equipment counting, but not in any case, the first command is responded, so that the first communication equipment is prevented from being counted for multiple times, and the counting efficiency is improved.
Optionally, the inventory indication information includes at least one of:
counting the purpose;
Counting times;
Counting time.
Optionally, the device inventory apparatus 90 further includes:
And the storage module is used for storing the inventory indication information or updating the inventory indication information stored in the history according to the inventory indication information.
Optionally, the determining module 92 is configured to compare the inventory indication information with historically stored inventory indication information to obtain a comparison result; and determining whether to respond to the first command according to the comparison result.
Optionally, the inventory indication information includes an inventory purpose; the determining module 92 is configured to determine that feedback or feedback non-acknowledgement NACK is not performed on the first command if the comparison result indicates that the inventory purpose is the same as the stored inventory purpose;
And/or the number of the groups of groups,
The determining module 92 is configured to determine to respond to the first command if the comparison result indicates that the objective of inventory is different from the stored objective of inventory.
Optionally, the inventory purpose includes at least one of: the inventory number, the protocol control PC, the extended protocol control XPC and the inventory electronic product code EPC.
Optionally, the determining module 92 is configured to determine that the first command is not fed back or that the feedback does not respond to the current counting when the stored counting number is 0.
Optionally, the device inventory apparatus 90 further includes:
And the first updating module is used for subtracting one stored count number if the first communication equipment determines to respond to the first command.
Optionally, the number of times of inventory is agreed upon by a protocol or indicated by the second communication device.
Optionally, the determining module 92 is configured to determine that the first command is not fed back or that the feedback does not respond to the current inventory if the current time is within the stored inventory time.
Optionally, the checking time is agreed by a protocol or indicated by the second communication device.
Optionally, the device inventory apparatus 90 further includes:
the second receiving module is used for receiving a second command, and the second command is used for indicating to reset the historically stored inventory indication information;
The first resetting module is used for resetting the historically stored inventory indication information according to the second command;
Or alternatively
And the second resetting module is used for resetting the historically stored inventory indication information according to a predefined value after the preset time after the first command is received.
Optionally, the device inventory apparatus 90 further includes:
And the third resetting module is used for resetting the inventory indication information stored in the history according to a predefined value if the first communication equipment does not receive the second command in the first time window or fails to decode the second command, and the second command is used for indicating to reset the inventory indication information stored in the history.
Optionally, the device inventory apparatus 90 further includes:
And the state switching module is used for receiving a third command after the first communication device sends the first response for responding to the first command and before receiving the acknowledgement ACK for the first response, entering a checking silence state, and in the checking silence state, the first communication device does not respond to the newly received first command, wherein the third command is used for indicating the first communication device to enter the checking silence state.
Optionally, the time slot of the third command indicating the first communication device is set to a special value, so as to indicate the first communication device to enter the silent state.
Optionally, the state switching module is further configured to exit the silent state after receiving the acknowledgement ACK.
The device checking device provided by the embodiment of the application can realize each process realized by the method embodiment of fig. 6 and achieve the same technical effects, and in order to avoid repetition, the description is omitted here.
Referring to fig. 10, an embodiment of the present application further provides an apparatus checking device 100, including:
the first sending module 101 is configured to send a first command, where the first command is used to instruct to inventory a first communication device, and the first command includes inventory indication information, where the inventory indication information is used to indicate relevant information used when inventory is performed on the first communication device.
In the embodiment of the application, the first command for checking the equipment is sent, the first command comprises the checking indication information, and the first communication equipment can determine whether to respond to the first command according to the checking indication information, but not respond to the first command under any condition, so that the first communication equipment is prevented from being checked for multiple times, and the checking efficiency is improved.
Optionally, the inventory indication information includes at least one of:
counting the purpose;
Counting times;
Counting time.
Optionally, the device inventory apparatus 100 further includes:
and the first receiving module is used for receiving a first response of the first communication equipment to the first command.
Optionally, the device inventory apparatus 100 further includes:
The second sending module is used for sending first interaction information to the third communication equipment, wherein the first interaction information comprises information of the first communication equipment checked by the second communication equipment, and the third communication equipment is equipment used for checking.
Optionally, the device inventory apparatus 100 further includes:
The second receiving module is used for receiving second interaction information sent by third communication equipment, wherein the second interaction information comprises information of the checked first communication equipment of the third communication equipment, and the third communication equipment is equipment for checking;
The comparison module is used for comparing the information of the first communication equipment checked by the second communication equipment with the information of the first communication equipment checked by the third communication equipment;
The processing module is used for deleting the information of the repeated first communication equipment if the repeated first communication equipment exists in the first communication equipment checked by the second communication equipment and the first communication equipment checked by the third communication equipment; and/or supplementing the information of the different first communication device in the first communication device checked by the third communication device and the first communication device checked by the second communication device into the information of the first communication device checked by the second communication device.
Optionally, the device inventory apparatus 100 further includes:
And the third sending module is used for sending a second command, and the second command is used for indicating the first communication equipment to reset the historically stored inventory indication information.
Optionally, the device inventory apparatus 100 further includes:
and the fourth sending module is used for sending a third command, and the third command is used for indicating the first communication equipment to enter a checking silence state.
Optionally, the time slot of the third command indicating the first communication device is set to a special value, so as to indicate the first communication device to enter the silent state.
The device checking apparatus provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 7, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.
As shown in fig. 11, the embodiment of the present application further provides a communication device 110, including a processor 111 and a memory 112, where the memory 112 stores a program or an instruction that can be executed on the processor 111, for example, when the communication device 110 is a first communication device, the program or the instruction is executed by the processor 111 to implement the steps of the device checking method embodiment executed on the first communication device side, and the same technical effects can be achieved. When the communication device 110 is a second communication device, the program or the instruction, when executed by the processor 111, implements the steps of the device checking method embodiment executed by the second communication device side, and the same technical effects can be achieved, so that repetition is avoided, and no further description is provided herein.
The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for sending a first command, the first command is used for indicating to count a first communication device, the first command comprises count indication information, and the count indication information is used for indicating relevant information used when the first communication device is counted. The terminal embodiment corresponds to the second communication device side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 12 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.
The terminal 120 includes, but is not limited to: at least some of the components of the radio frequency unit 121, the network module 122, the audio output unit 123, the input unit 124, the sensor 125, the display unit 126, the user input unit 127, the interface unit 128, the memory 129, and the processor 1210.
Those skilled in the art will appreciate that the terminal 120 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 1210 by a power management system for performing functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 12 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.
It should be appreciated that in embodiments of the present application, the input unit 124 may include a graphics processing unit (Graphics Processing Unit, GPU) 1241 and a microphone 1242, with the graphics processor 1241 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 126 may include a display panel 1261, and the display panel 1261 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 127 includes at least one of a touch panel 1271 and other input devices 1272. Touch panel 1271 is also referred to as a touch screen. Touch panel 1271 may include two parts, a touch detection device and a touch controller. Other input devices 1272 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
In the embodiment of the present application, after receiving the downlink data from the network side device, the rf unit 121 may transmit the downlink data to the processor 1210 for processing; in addition, the radio frequency unit 121 may send uplink data to the network side device. Typically, the radio frequency unit 121 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
Memory 129 may be used to store software programs or instructions and various data. The memory 129 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 129 may include volatile memory or nonvolatile memory, or the memory 129 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDRSDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct random access memory (DRRAM). Memory 129 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
Processor 1210 may include one or more processing units; optionally, processor 1210 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 1210.
The radio frequency unit 121 is configured to send a first command, where the first command is used to instruct to inventory a first communication device, and the first command includes inventory indication information, where the inventory indication information is used to indicate relevant information used when inventory is performed on the first communication device.
In the embodiment of the application, the first command for checking the equipment is sent, the first command comprises the checking indication information, and the first communication equipment can determine whether to respond to the first command according to the checking indication information, but not respond to the first command under any condition, so that the first communication equipment is prevented from being checked for multiple times, and the checking efficiency is improved.
Optionally, the inventory indication information includes at least one of:
counting the purpose;
Counting times;
Counting time.
Optionally, the radio frequency unit 121 is further configured to receive a first response of the first communication device to the first command.
Optionally, the radio frequency unit 121 is further configured to send first interaction information to a third communication device, where the first interaction information includes information of the first communication device checked by the second communication device, and the third communication device is a device for performing checking.
Optionally, the radio frequency unit 121 is further configured to receive second interaction information sent by a third communication device, where the second interaction information includes information of a first communication device checked by the third communication device, and the third communication device is a device for performing checking;
The processor 1210 is configured to compare information of the first communication device checked by the second communication device with information of the first communication device checked by the third communication device;
The processor 1210 is further configured to delete information of a repeated first communication device if the repeated first communication device exists in the first communication device checked by the second communication device and the first communication device checked by the third communication device; and/or supplementing the information of the different first communication device in the first communication device checked by the third communication device and the first communication device checked by the second communication device into the information of the first communication device checked by the second communication device.
Optionally, the radio frequency unit 121 is further configured to send a second command, where the second command is used to instruct the first communication device to reset the historically stored inventory indication information.
Optionally, the radio frequency unit 121 is further configured to send a third command, where the third command is used to instruct the first communication device to enter the silent state.
Optionally, the time slot of the third command indicating the first communication device is set to a special value, so as to indicate the first communication device to enter the silent state.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above embodiment of the device checking method, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.
The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the device checking method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
The embodiment of the present application further provides a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above embodiment of the device inventory method, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated herein.
The embodiment of the application also provides a communication system, which comprises: a first communication device operable to perform the steps of the device inventory method performed by the first communication device side as described above, and a second communication device operable to perform the steps of the device inventory method performed by the second communication device side as described above.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims (25)

1. A method of device inventory comprising:
The method comprises the steps that a first communication device receives a first command, wherein the first command is used for indicating to count the first communication device, the first command comprises count indication information, and the count indication information is used for indicating relevant information used when the first communication device is counted;
the first communication device determines whether to respond to the first command according to the inventory indication information.
2. The method of claim 1, wherein the inventory indication information comprises at least one of:
counting the purpose;
Counting times;
Counting time.
3. The method according to claim 1 or 2, further comprising:
The first communication device stores inventory indication information;
the inventory indication information stored by the first communication device is the inventory indication information sent by the first command or inventory indication information agreed by a protocol.
4. The method of claim 3, wherein the first communication device determining whether to respond to the first command based on the inventory indication information comprises:
The first communication equipment compares the inventory indication information with the historically stored inventory indication information to obtain a comparison result;
And the first communication equipment determines whether to respond to the first command according to the comparison result.
5. The method of claim 4, wherein the inventory indication information includes an inventory purpose; the first communication device determining whether to respond to the first command according to the comparison result comprises:
if the comparison result indicates that the checking purpose is the same as the stored checking purpose, determining that the first command is not fed back or the current checking is not responded by the feedback;
And/or the number of the groups of groups,
And if the comparison result indicates that the inventory purpose is different from the stored inventory purpose, determining to respond to the first command.
6. The method of claim 2, wherein the inventory purpose comprises at least one of: the inventory number, the protocol control PC, the extended protocol control XPC and the inventory electronic product code EPC.
7. The method of claim 3, wherein the first communication device determining whether to respond to the first command based on the inventory indication information comprises:
And under the condition that the stored counting times are 0, the first communication equipment determines that the first command is not fed back or the first command is not fed back to respond to the counting.
8. The method of claim 3, wherein the first communication device determining whether to respond to the first command based on the inventory indication information further comprises:
and if the first communication equipment determines to respond to the first command, subtracting one from the stored checking number.
9. The method of claim 3, wherein the first communication device determining whether to respond to the first command based on the inventory indication information comprises:
And under the condition that the current moment is within the stored checking time, the first communication equipment determines that the first command is not fed back or the feedback does not respond to the current checking.
10. A method according to claim 3, further comprising:
The first communication equipment receives a second command, wherein the second command is used for indicating to reset the historically stored inventory indication information;
The first communication device resets the historically stored inventory indication information according to the second command;
Or alternatively
After the first communication device receives the first command for a preset time, the first communication device resets the historically stored inventory indication information according to a predefined value:
Or alternatively
And if the first communication device does not receive the second command or fails to decode the second command within a first time window, the first communication device resets the inventory indication information stored in the history according to a predefined value.
11. The method as recited in claim 1, further comprising:
And if the first communication device receives a third command after sending a first response for responding to the first command and before receiving Acknowledgement (ACK) for the first response, the first communication device enters a checking silence state, and in the checking silence state, the first communication device does not respond to the newly received first command, and the third command is used for indicating the first communication device to enter the checking silence state.
12. The method of claim 11, wherein the third command indicates that the time slot of the first communication device is set to a special value to indicate that the first communication device enters a silent inventory state.
13. The method according to claim 11 or 12, further comprising:
the first communication device exits the inventory silence state after receiving the acknowledgement ACK.
14. A method of device inventory comprising:
The second communication device sends a first command, wherein the first command is used for indicating to count the first communication device, the first command comprises counting indication information, and the counting indication information is used for indicating relevant information used when the first communication device is counted.
15. The method of claim 14, wherein the inventory indication information includes at least one of:
counting the purpose;
Counting times;
Counting time.
16. The method as recited in claim 14, further comprising:
the second communication device receives a first response from the first communication device to the first command.
17. The method of claim 16, wherein the second communication device receiving the first response from the first communication device to the first command further comprises:
The second communication device sends first interaction information to the third communication device, wherein the first interaction information comprises information of the first communication device checked by the second communication device, and the third communication device is used for checking.
18. The method as recited in claim 14, further comprising:
The second communication device receives second interaction information sent by third communication device, wherein the second interaction information comprises information of the checked first communication device of the third communication device, and the third communication device is used for checking;
the second communication device compares the information of the first communication device checked by the second communication device with the information of the first communication device checked by the third communication device;
If repeated first communication equipment exists in the first communication equipment checked by the second communication equipment and the first communication equipment checked by the third communication equipment, deleting the information of the repeated first communication equipment by the second communication equipment; and/or supplementing the information of the different first communication device in the first communication device checked by the third communication device and the first communication device checked by the second communication device into the information of the first communication device checked by the second communication device.
19. The method as recited in claim 14, further comprising:
The second communication device sends a second command, wherein the second command is used for indicating the first communication device to reset the historically stored inventory indication information.
20. The method as recited in claim 14, further comprising:
the second communication device sends a third command, the third command being used to instruct the first communication device to enter a silent inventory state.
21. The method of claim 20, wherein the third command indicates that the time slot of the first communication device is set to a special value to indicate that the first communication device enters a silent state.
22. An apparatus for checking a device, comprising:
The first receiving module is used for receiving a first command, wherein the first command is used for indicating to count the first communication equipment, the first command comprises counting indication information, and the counting indication information is used for indicating relevant information used when the first communication equipment is counted;
and the determining module is used for determining whether to respond to the first command according to the inventory indication information.
23. An apparatus for checking a device, comprising:
The first sending module is used for sending a first command, wherein the first command is used for indicating to count the first communication equipment, the first command comprises counting indication information, and the counting indication information is used for indicating relevant information used when the first communication equipment is counted.
24. A communication device comprising a processor and a memory storing a program or instructions executable on the processor, the program or instructions implementing the steps of the device inventory method of any one of claims 1 to 13 when executed by the processor, or the steps of the device inventory method of any one of claims 14 to 21 when executed by the processor.
25. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions, which when executed by a processor, implement the device inventory method of any one of claims 1 to 13, or implement the steps of the device inventory method of any one of claims 14 to 21.
CN202310033213.3A 2023-01-10 2023-01-10 Equipment checking method, device, communication equipment and readable storage medium Pending CN118333069A (en)

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KR101776706B1 (en) * 2012-11-30 2017-09-08 한화테크윈 주식회사 Method and Apparatus for counting the number of person using a plurality of cameras
WO2017132946A1 (en) * 2016-02-04 2017-08-10 华为技术有限公司 Data transmission method and apparatus
CN109145668A (en) * 2018-09-10 2019-01-04 虫极科技（北京）有限公司 Intelligent cargo cabinet, RFID tag and its checking method
JP2021117825A (en) * 2020-01-28 2021-08-10 東芝テック株式会社 Information processor, system, and program
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CN116830112A (en) * 2021-01-29 2023-09-29 华为技术有限公司 Method and device for reading data
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