CN116362266A - Inventory checking method and device based on radio frequency power - Google Patents

Inventory checking method and device based on radio frequency power Download PDF

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CN116362266A
CN116362266A CN202211585738.XA CN202211585738A CN116362266A CN 116362266 A CN116362266 A CN 116362266A CN 202211585738 A CN202211585738 A CN 202211585738A CN 116362266 A CN116362266 A CN 116362266A
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goods
determining
identification information
tag
label
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于海波
刘婧
乔文俞
谭煌
李媛
陈天阳
刁新平
李亚杰
谷凯
田成明
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China Electric Power Research Institute Co Ltd CEPRI
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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
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
    • G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/08—Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
    • G06Q10/087—Inventory or stock management, e.g. order filling, procurement or balancing against orders

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Abstract

The invention discloses an inventory checking method and device based on radio frequency power. The method comprises the following steps: establishing a binding relation between goods and the tag, and determining goods tag data; identifying the target goods on the stereoscopic goods shelf and the labels on the turnover boxes through a label reader-writer on the gantry crane, and determining identification information, wherein the identification information comprises identification labels and position information; and calibrating the in-store state of the target goods according to the identification information and the goods label data, and determining the in-store state of the target goods.

Description

Inventory checking method and device based on radio frequency power
Technical Field
The invention relates to the technical field of inventory checking, in particular to an inventory checking method and device based on radio frequency power.
Background
For a warehouse-storing and checking device, the existing RFID checking device for intelligent ammeter warehouse comprises an upper cover, a lower plate and a vertical plate, and is provided with RFID read-write elements; the RFID signal shielding and reflection are carried out by enclosing a shielding box body; the device is arranged on a fork or a manipulator, enters a goods space of a goods shelf, and performs inventory. Most of the RFID checking modes in the market at present adopt similar devices, and the devices need to be pre-installed on a fork or a manipulator and then are used for checking, so that certain limitations exist and the omnibearing checking cannot be realized. The method has the defects of small recognition range (lower shelf), low efficiency, complex operation and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an inventory checking method and device based on radio frequency power.
According to one aspect of the present invention, there is provided an inventory checking method based on radio frequency power, including:
establishing a binding relation between goods and the tag, and determining goods tag data;
identifying the target goods on the stereoscopic goods shelf and the labels on the turnover boxes through a label reader-writer on the gantry crane, and determining identification information, wherein the identification information comprises identification labels and position information;
and calibrating the in-store state of the target goods according to the identification information and the goods label data, and determining the in-store state of the target goods.
Optionally, the method further includes, after the operation of identifying the target goods on the three-dimensional shelf and the label on the turnover box by the gantry crane and determining the identification information:
taking unidentified goods out of the three-dimensional goods shelf through the gantry crane and putting the unidentified goods into a preset goods storage device;
carrying out tag identification on unidentified goods through a preset reader-writer and a special antenna, and determining tag identification information of the unidentified goods;
and calibrating the in-store state of the unidentified goods according to the label identification information and the goods label data, and determining the in-store state of the unidentified goods.
Optionally, after the operation of identifying the tag identification information of the unidentified goods by identifying the unidentified goods through a preset reader-writer and a special antenna, the method further includes:
when the missing goods labels are not read, placing the missing goods at the entrance of the radio frequency channel, and identifying the missing goods through the radio frequency channel to determine missing goods label information;
and calibrating the in-store state of the missing goods according to the missing goods label information and the goods label data, and determining the in-store state of the missing goods.
Optionally, the tag reader-writer is an ultrahigh frequency RFID electronic tag reader-writer and is arranged on the left, right and upper three sides of the gantry crane.
Optionally, the method further comprises:
the identification success rate of target acquisition is improved by adjusting the transmitting power of the tag reader-writer and correcting the center frequency point; or alternatively
By moving the distance between the gantry crane and the target goods, the recognition success rate of target acquisition is improved, wherein the recognition success rate is calculated as follows:
γ＝ψλ(P 0 +△P)/L×100％
wherein gamma is the reading success rate, psi is the environmental quality coefficient, lambda is the frequency offset coefficient, L is the reading distance, P 0 Represents the initial transmission power of the radio frequency, and deltap represents the increment of the transmission power of the radio frequency.
According to another aspect of the present invention, there is provided an inventory checking device based on radio frequency power, comprising:
the first determining module is used for establishing a binding relation between the goods and the tag and determining goods tag data;
the second determining module is used for identifying the target goods on the stereoscopic goods shelf and the labels on the turnover boxes through the label reader-writer on the gantry crane and determining identification information, wherein the identification information comprises identification labels and position information;
and the third determining module is used for calibrating the in-store state of the target goods according to the identification information and the goods label data and determining the in-store state of the target goods.
According to a further aspect of the present invention there is provided a computer readable storage medium storing a computer program for performing the method according to any one of the above aspects of the present invention.
According to still another aspect of the present invention, there is provided an electronic device including: a processor; a memory for storing the processor-executable instructions; the processor is configured to read the executable instructions from the memory and execute the instructions to implement the method according to any of the above aspects of the present invention.
Therefore, the tag reader-writer is arranged on the gantry lifter, and the tag reader-writer has a large reading range (can meet the requirement of three-dimensional warehouse checking), high efficiency, simple operation and the like.
Drawings
Exemplary embodiments of the present invention may be more completely understood in consideration of the following drawings:
FIG. 1 is a flow chart of an inventory method based on RF power according to an exemplary embodiment of the invention;
fig. 2 is a schematic structural diagram of an inventory checking device based on radio frequency power according to an exemplary embodiment of the present invention;
fig. 3 is a structure of an electronic device provided in an exemplary embodiment of the present invention.
Detailed Description
Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some embodiments of the present invention and not all embodiments of the present invention, and it should be understood that the present invention is not limited by the example embodiments described herein.
It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
It will be appreciated by those of skill in the art that the terms "first," "second," etc. in embodiments of the present invention are used merely to distinguish between different steps, devices or modules, etc., and do not represent any particular technical meaning nor necessarily logical order between them.
It should also be understood that in embodiments of the present invention, "plurality" may refer to two or more, and "at least one" may refer to one, two or more.
It should also be appreciated that any component, data, or structure referred to in an embodiment of the invention may be generally understood as one or more without explicit limitation or the contrary in the context.
In addition, the term "and/or" in the present invention is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present invention, the character "/" generally indicates that the front and rear related objects are an or relationship.
It should also be understood that the description of the embodiments of the present invention emphasizes the differences between the embodiments, and that the same or similar features may be referred to each other, and for brevity, will not be described in detail.
Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Embodiments of the invention are operational with numerous other general purpose or special purpose computing system environments or configurations with electronic devices, such as terminal devices, computer systems, servers, etc. Examples of well known terminal devices, computing systems, environments, and/or configurations that may be suitable for use with the terminal device, computer system, server, or other electronic device include, but are not limited to: personal computer systems, server computer systems, thin clients, thick clients, hand-held or laptop devices, microprocessor-based systems, set-top boxes, programmable consumer electronics, network personal computers, small computer systems, mainframe computer systems, and distributed cloud computing technology environments that include any of the foregoing, and the like.
Electronic devices such as terminal devices, computer systems, servers, etc. may be described in the general context of computer system-executable instructions, such as program modules, being executed by a computer system. Generally, program modules may include routines, programs, objects, components, logic, data structures, etc., that perform particular tasks or implement particular abstract data types. The computer system/server may be implemented in a distributed cloud computing environment in which tasks are performed by remote processing devices that are linked through a communications network. In a distributed cloud computing environment, program modules may be located in both local and remote computing system storage media including memory storage devices.
Exemplary method
Fig. 1 is a flowchart of an inventory checking method based on radio frequency power according to an exemplary embodiment of the present invention. The present embodiment may be applied to an electronic device, as shown in fig. 1, an inventory checking method 100 based on radio frequency power includes the following steps:
step 101, establishing a binding relation between goods and labels, and determining goods label data;
102, identifying the target goods on the stereoscopic goods shelf and the labels on the turnover boxes through a label reader-writer on the gantry crane, and determining identification information, wherein the identification information comprises identification labels and position information;
and 103, calibrating the in-store state of the target goods according to the identification information and the goods label data, and determining the in-store state of the target goods.
Optionally, the method further includes, after the operation of identifying the target goods on the three-dimensional shelf and the label on the turnover box by the gantry crane and determining the identification information:
taking unidentified goods out of the three-dimensional goods shelf through the gantry crane and putting the unidentified goods into a preset goods storage device;
carrying out tag identification on unidentified goods through a preset reader-writer and a special antenna, and determining tag identification information of the unidentified goods;
and calibrating the in-store state of the unidentified goods according to the label identification information and the goods label data, and determining the in-store state of the unidentified goods.
Optionally, after the operation of identifying the tag identification information of the unidentified goods by identifying the unidentified goods through a preset reader-writer and a special antenna, the method further includes:
when the missing goods labels are not read, placing the missing goods at the entrance of the radio frequency channel, and identifying the missing goods through the radio frequency channel to determine missing goods label information;
and calibrating the in-store state of the missing goods according to the missing goods label information and the goods label data, and determining the in-store state of the missing goods.
Optionally, the tag reader-writer is an ultrahigh frequency RFID electronic tag reader-writer and is arranged on the left, right and upper three sides of the gantry crane.
Optionally, the method further comprises:
the identification success rate of target acquisition is improved by adjusting the transmitting power of the tag reader-writer and correcting the center frequency point; or alternatively
By moving the distance between the gantry crane and the target goods, the recognition success rate of target acquisition is improved, wherein the recognition success rate is calculated as follows:
γ＝ψλ(P 0 +△P)/L×100％
wherein gamma is the reading success rate, psi is the environmental quality coefficient, lambda is the frequency offset coefficient, L is the reading distance, P 0 Represents the initial transmission power of the radio frequency, and deltap represents the increment of the transmission power of the radio frequency.
Specifically, the technical principle of the application is as follows:
the goods and the label information establish a binding relation, and the label information is read to check the goods;
when the goods are put in storage, the goods are stored according to the label information of the goods corresponding to the goods shelf position;
and when checking, judging the state of the goods in the warehouse by reading the label information.
The realization process mainly adopts a three-step method to carry out checking operation.
The first step: and (5) performing preliminary checking. The gantry crane device can read the target goods on the stereoscopic goods shelves and the labels on the turnover boxes by moving forwards and backwards, up and down and left and right, and the condition of missing reading possibly exists, so that the individual unidentified labels can be read in the next step;
and a second step of: and (5) special inventory. For goods which cannot be identified in the previous step of inventory operation, the goods can be taken out from the three-dimensional goods shelves and put into three goods shelves through the gantry lifter, and the goods and the label information on the turnover box are identified through the reader-writer and the special antenna arranged on the periphery of the goods shelves, so that the identification of all the labels can be generally completed, and if the label information which cannot be identified still exists, the next step of supplement reading can be performed;
and a third step of: and (5) positioning and checking. If the condition that the information of the goods labels is omitted, the goods in the goods basket of the gantry crane can be conveyed to the radio frequency access door, all the label information can be identified through the access door in a non-missing way (of course, if the condition that the information is omitted due to damage and the like, the position is convenient for manual checking).
Technical measures
The ultrahigh frequency RFID electronic tag reader-writer adopts three-dimensional dynamic reading and transmitting power self-adaptive technology to realize efficient, accurate and full-coverage reading of the electronic tag.
The radio frequency power self-adaptive adjustment, the center frequency deviation adjustment, the three-dimensional mobile positioning and other technologies are adopted. The requirements of the reading success rate are met through adjustment of the radio frequency power P, the center frequency point f and the reading distance L.
High-gain radio frequency antennas are arranged on two sides of the gantry crane close to the surface of the three-dimensional shelf, so that signal transmission is ensured, and tag information is rapidly identified by controlling the time sequence and the transmitting power of the antennas while moving the gantry crane through front-back, up-down and left-right movement;
high-gain radio frequency antennas are arranged at the left, right and top surfaces of the gantry crane bearing platform, and when necessary, the physical distance between the gantry crane bearing platform and goods can be changed by moving the three radio frequency antennas, so that the signal transmission penetrating effect is ensured, and the reading success rate (gamma) is improved.
Before inventory, inventory information is extracted from a warehouse management system, label information of goods placed on each goods shelf can be known, when inventory is started, an antenna adopts medium transmitting power P0 (usually P0=20 dBm) to read the label information, the label information is read and compared with the inventory information, if the label which cannot read the information exists, the transmitting power increment delta P (delta P=1 dBm step, the maximum value Pmax=33 dBm of radio frequency power) of the antenna is improved through changing parameters, the frequency point of correction center (caused by label frequency offset, 1MHz step and adjustment in the range of 928-940 MHz) is achieved, meanwhile, a gantry lifter can be moved to adjust the antenna reading distance (L) to achieve the optimal reading and writing distance and angle for reading the labels of the goods shelf, and the reading success rate (gamma) is improved.
The recognition success rate algorithm is as follows:
γ＝ψλ(P 0 +△P)/L×100％
wherein gamma is the reading success rate, psi is the environmental quality coefficient, lambda is the frequency offset coefficient, L is the reading distance, P 0 Represents the initial transmission power of the radio frequency, and deltap represents the increment of the transmission power of the radio frequency.
The technical improvement points are shown in table 1:
TABLE 1
Figure BDA0003990784950000071
Figure BDA0003990784950000081
Therefore, the tag reader-writer is arranged on the gantry lifter, and the tag reader-writer has a large reading range (can meet the requirement of three-dimensional warehouse checking), high efficiency, simple operation and the like.
Exemplary apparatus
Fig. 2 is a schematic structural diagram of an inventory checking device based on radio frequency power according to an exemplary embodiment of the present invention. As shown in fig. 2, the apparatus 200 includes:
a first determining module 210, configured to establish a binding relationship between the goods and the tag, and determine the goods tag data;
the second determining module 220 is configured to identify, by using a tag reader/writer on the gantry crane, a target cargo on a stereoscopic shelf and a tag on a turnover box, and determine identification information, where the identification information includes an identification tag and location information;
and the third determining module 230 is configured to calibrate the in-store state of the target cargo according to the identification information and the cargo tag data, and determine the in-store state of the target cargo.
Optionally, after the operation of identifying the target goods on the three-dimensional shelf and the labels on the turnover box by the gantry crane and determining the identification information, the apparatus 200 further includes:
the loading module is used for taking unidentified goods out of the three-dimensional goods shelf through the gantry crane and loading the unidentified goods into a preset goods storage device;
a fourth determining module, configured to perform tag identification on the unidentified goods through a preset reader-writer and a dedicated antenna, and determine tag identification information of the unidentified goods;
and the fifth determining module is used for calibrating the in-store state of the unidentified goods according to the label identification information and the goods label data and determining the in-store state of the unidentified goods.
Optionally, after the operation of identifying the tag identification information of the unidentified goods by performing tag identification on the unidentified goods through the preset reader-writer and the special antenna, the apparatus 200 further includes:
the sixth determining module is used for placing the missing goods at the entrance of the radio frequency channel when the missing goods labels are not read, and identifying the missing goods through the radio frequency channel to determine missing goods label information;
and the seventh determining module is used for calibrating the in-store state of the missing goods according to the missing goods label information and the goods label data, and determining the in-store state of the missing goods.
Optionally, the tag reader-writer is an ultrahigh frequency RFID electronic tag reader-writer and is arranged on the left, right and upper three sides of the gantry crane.
Optionally, the apparatus 200 further comprises:
the first improving module is used for improving the recognition success rate of target acquisition by adjusting the transmitting power of the tag reader-writer and correcting the center frequency point; or alternatively
The second improving module is used for improving the recognition success rate of target acquisition by moving the distance between the gantry crane and the target goods, wherein the algorithm of the recognition success rate is as follows:
γ＝ψλ(P 0 +△P)/L×100％
wherein gamma is the reading success rate, and ψ isEnvironmental quality coefficient, lambda is frequency offset coefficient, L is reading distance, P 0 Represents the initial transmission power of the radio frequency, and deltap represents the increment of the transmission power of the radio frequency.
Exemplary electronic device
Fig. 3 is a structure of an electronic device provided in an exemplary embodiment of the present invention. As shown in fig. 3, the electronic device 30 includes one or more processors 31 and memory 32.
The processor 31 may be a Central Processing Unit (CPU) or other form of processing unit having data processing and/or instruction execution capabilities, and may control other components in the electronic device to perform desired functions.
Memory 32 may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random Access Memory (RAM) and/or cache memory (cache), and the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, and the like. One or more computer program instructions may be stored on the computer readable storage medium that can be executed by the processor 31 to implement the methods of the software programs of the various embodiments of the present invention described above and/or other desired functions. In one example, the electronic device may further include: an input device 33 and an output device 34, which are interconnected by a bus system and/or other forms of connection mechanisms (not shown).
In addition, the input device 33 may also include, for example, a keyboard, a mouse, and the like.
The output device 34 can output various information to the outside. The output device 34 may include, for example, a display, speakers, a printer, and a communication network and remote output devices connected thereto, etc.
Of course, only some of the components of the electronic device that are relevant to the present invention are shown in fig. 3 for simplicity, components such as buses, input/output interfaces, etc. being omitted. In addition, the electronic device may include any other suitable components depending on the particular application.
Exemplary computer program product and computer readable storage Medium
In addition to the methods and apparatus described above, embodiments of the invention may also be a computer program product comprising computer program instructions which, when executed by a processor, cause the processor to perform steps in a method according to various embodiments of the invention described in the "exemplary methods" section of this specification.
The computer program product may write program code for performing operations of embodiments of the present invention in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server.
Furthermore, embodiments of the present invention may also be a computer-readable storage medium, having stored thereon computer program instructions which, when executed by a processor, cause the processor to perform the steps in a method of mining history change records according to various embodiments of the present invention described in the "exemplary methods" section above in this specification.
The computer readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The basic principles of the present invention have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present invention are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be considered as essential to the various embodiments of the present invention. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the invention is not necessarily limited to practice with the above described specific details.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, so that the same or similar parts between the embodiments are mutually referred to. For system embodiments, the description is relatively simple as it essentially corresponds to method embodiments, and reference should be made to the description of method embodiments for relevant points.
The block diagrams of the devices, systems, apparatuses, systems according to the present invention are merely illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, systems, apparatuses, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
The method and system of the present invention may be implemented in a number of ways. For example, the methods and systems of the present invention may be implemented by software, hardware, firmware, or any combination of software, hardware, firmware. The above-described sequence of steps for the method is for illustration only, and the steps of the method of the present invention are not limited to the sequence specifically described above unless specifically stated otherwise. Furthermore, in some embodiments, the present invention may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present invention. Thus, the present invention also covers a recording medium storing a program for executing the method according to the present invention.
It is also noted that in the systems, devices and methods of the present invention, components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention. The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the invention to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.

Claims (8)

1. An inventory checking method based on radio frequency power, comprising:
establishing a binding relation between goods and the tag, and determining goods tag data;
identifying the target goods on the stereoscopic goods shelf and the labels on the turnover boxes through a label reader-writer on the gantry crane, and determining identification information, wherein the identification information comprises identification labels and position information;
and calibrating the in-store state of the target goods according to the identification information and the goods label data, and determining the in-store state of the target goods.
2. The method of claim 1, wherein the step of identifying the target cargo on the three-dimensional shelf and the label on the transfer case by the gantry crane, and after determining the identification information, further comprises:
taking unidentified goods out of the three-dimensional goods shelf through the gantry crane and putting the unidentified goods into a preset goods storage device;
carrying out tag identification on the unidentified goods through a preset reader-writer and a special antenna, and determining tag identification information of the unidentified goods;
and calibrating the in-store state of the unidentified goods according to the label identification information and the goods label data, and determining the in-store state of the unidentified goods.
3. The method of claim 1, wherein after the operation of determining the tag identification information of the unidentified cargo by performing tag identification on the unidentified cargo by a reader/writer and a dedicated antenna, further comprising:
when the missing goods label is not read, placing the missing goods at a radio frequency channel entrance, and identifying the missing goods through a radio frequency channel to determine missing goods label information;
and calibrating the in-store state of the missing goods according to the missing goods label information and the goods label data, and determining the in-store state of the missing goods.
4. The method of claim 3, wherein the tag reader is an ultra-high frequency RFID electronic tag reader mounted on the left, right, and upper sides of the gantry crane.
5. The method as recited in claim 1, further comprising:
the identification success rate of the target acquisition is improved by adjusting the transmitting power of the tag reader-writer and correcting the center frequency point; or alternatively
And improving the recognition success rate of the target acquisition by moving the distance between the gantry crane and the target cargo, wherein the recognition success rate has the following algorithm:
γ＝ψλ(P 0 +△P)/L×100％
wherein gamma is the reading success rate, psi is the environmental quality coefficient, lambda is the frequency offset coefficient, L is the reading distance, P 0 Represents the initial transmission power of the radio frequency, and deltap represents the increment of the transmission power of the radio frequency.
6. An inventory checking device based on radio frequency power, comprising:
the first determining module is used for establishing a binding relation between the goods and the tag and determining goods tag data;
the second determining module is used for identifying the target goods on the stereoscopic goods shelf and the labels on the turnover boxes through the label reader-writer on the gantry crane and determining identification information, wherein the identification information comprises identification labels and position information;
and the third determining module is used for calibrating the in-store state of the target goods according to the identification information and the goods label data and determining the in-store state of the target goods.
7. A computer readable storage medium, characterized in that the storage medium stores a computer program for executing the method of any of the preceding claims 1-5.
8. An electronic device, the electronic device comprising:
a processor;
a memory for storing the processor-executable instructions;
the processor is configured to read the executable instructions from the memory and execute the instructions to implement the method of any of the preceding claims 1-5.
CN202211585738.XA 2022-12-09 2022-12-09 Inventory checking method and device based on radio frequency power Pending CN116362266A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116749658A (en) * 2023-08-21 2023-09-15 武汉精臣智慧标识科技有限公司 RFID label printer and read-write method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116749658A (en) * 2023-08-21 2023-09-15 武汉精臣智慧标识科技有限公司 RFID label printer and read-write method thereof
CN116749658B (en) * 2023-08-21 2023-11-14 武汉精臣智慧标识科技有限公司 RFID label printer and read-write method thereof

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