CN110677174A - Shelf checking method based on wireless radio frequency identification and related device - Google Patents

Shelf checking method based on wireless radio frequency identification and related device Download PDF

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CN110677174A
CN110677174A CN201910720794.1A CN201910720794A CN110677174A CN 110677174 A CN110677174 A CN 110677174A CN 201910720794 A CN201910720794 A CN 201910720794A CN 110677174 A CN110677174 A CN 110677174A
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inventory
shelf
scanning
electronic tag
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CN110677174B (en
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李占川
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Ping An Technology Shenzhen Co Ltd
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Ping An Technology Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
    • 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
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    • G06Q10/087—Inventory or stock management, e.g. order filling, procurement or balancing against orders
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
    • H04L9/3228—One-time or temporary data, i.e. information which is sent for every authentication or authorization, e.g. one-time-password, one-time-token or one-time-key
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
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    • H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

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Abstract

The invention discloses a shelf checking method and device based on radio frequency identification, computer equipment and a storage medium, belonging to the technical field of radio frequency identification, wherein the shelf checking method based on radio frequency identification comprises the following steps: generating an inventory task list according to a self-defined inventory requirement, wherein the inventory task list comprises a target shelf which is appointed to be inventoried; sending an inventory instruction to the target shelf, so that the target shelf acquires target electronic tag information on all target electronic tags in a scanning range of scanning equipment through the scanning equipment; and comparing and analyzing all target electronic tag information and the goods information corresponding to all target goods shelves in the preset database to generate an inventory report. Thus, complex manual operation is reduced, and the intelligent degree and the inventory efficiency of the warehouse shelf inventory are improved.

Description

Shelf checking method based on wireless radio frequency identification and related device
Technical Field
The invention relates to the technical field of radio frequency identification, in particular to a shelf inventory method and device based on radio frequency identification, computer equipment and a storage medium.
Background
With the rapid development of national economy, the continuous production and capacity expansion of enterprises, and the standardization and high efficiency of storehouses of the enterprises are naturally promoted. In order to ensure the accuracy of inventory material inventory of enterprises, effective management of warehouse materials and company properties is achieved, and reasonable and efficient management and inventory storehouse shelf inventory are extremely critical links.
The existing warehouse shelf is mainly checked in a manual checking mode, and articles for stock and sale need to be checked manually during checking, so that checking work is complicated and low in efficiency.
Disclosure of Invention
Based on the above, in order to solve the technical problem of low efficiency of manually checking goods in the related art, the invention provides a shelf checking method and device based on radio frequency identification, computer equipment and a storage medium.
In a first aspect, a shelf inventory method based on radio frequency identification is provided, which includes:
generating an inventory task list according to a self-defined inventory requirement, wherein the inventory task list comprises a target shelf which is appointed to be inventoried;
sending an inventory instruction to the target shelf, so that the target shelf acquires target electronic tag information on all target electronic tags in a scanning range of the scanning equipment through corresponding scanning equipment, wherein each target shelf is provided with corresponding scanning equipment, and the target electronic tag information is information of electronic tags arranged on goods;
and comparing and analyzing all target electronic tag information and the goods information corresponding to all target goods shelves in the preset database to generate an inventory report.
In one embodiment, the method is applied to a zigbee network, the zigbee network is formed by a coordination node and a plurality of terminal nodes in a self-organizing manner, the terminal node corresponds to any target scanning device of a target shelf, the zigbee network further includes a sink node, the sink node is connected to the plurality of coordination nodes, and the step of sending an inventory instruction to the target shelf so that the target shelf acquires target electronic tag information on all target electronic tags within a scanning range of the scanning device through the corresponding scanning device includes:
sending an inventory instruction to a coordination node corresponding to the target shelf through a sink node, so that the coordination node forwards the inventory instruction to all terminal nodes connected with the coordination node;
and receiving, by the sink node, the target electronic tag information forwarded to the coordinating node, and acquiring, by the terminal node, the target electronic tag information on all the target electronic tags within the scanning range of the target scanning device through respective target scanning devices.
In one embodiment, the specific step of sending an inventory instruction to the target scanning device bound to the target shelf, so that the target scanning device obtains target electronic tag information on all target electronic tags in a scanning range of the target scanning device in response to the inventory instruction, includes:
sending an inventory instruction to target scanning equipment bound to the target shelf, so that the target scanning equipment responds to the inventory instruction and performs identity verification on all target electronic tags in the scanning range of the target scanning equipment;
and according to the identity verification result, acquiring target electronic tag information of all the target electronic tags passing the identity verification in the scanning range of the target scanning equipment by the target scanning equipment.
In one embodiment, each shelf is pre-assigned with a unique shelf number and a shelf label, the inventory task list includes shelf labels that are specified to be inventoried, and after the inventory task list is generated according to a customized inventory requirement, the method further includes:
analyzing shelf labels contained in the checking task list according to the checking task list;
and acquiring a target shelf specified by the checking task list according to the shelf label contained in the checking task list.
In one embodiment, the inventory task list further includes an inventory task type, the inventory task type includes at least one of data inventory and quantity inventory, and the step of performing comparative analysis on all target electronic tag information and item information corresponding to all target shelves in a preset database to generate an inventory report includes:
determining the type of the checking task according to the checking task list;
if the type of the checking task is quantity checking, analyzing the quantity of target electronic tags obtained by scanning different target shelves, and judging whether the quantity of the target electronic tags is equal to the quantity of goods corresponding to the target shelves in a preset database;
if the quantity of the target electronic tags is not equal to the quantity of the goods corresponding to the target shelf in a preset database, finding out the missing goods from all the goods corresponding to the target shelf in the preset database according to the target electronic tag information of all the target electronic tags;
and generating an inventory report according to the list of the missing goods.
In one embodiment, after finding the missing items from all the items corresponding to the target shelf in the preset database, the method further comprises:
acquiring any three scanning devices for detecting a target electronic tag every preset time, wherein the target electronic tag is an electronic tag corresponding to a missed goods;
positioning the missing goods through any three scanning devices to obtain real-time position information of the missing goods;
and updating the moving track of the omitted goods according to the historical position information and the real-time position information of the omitted goods.
In one embodiment, after the sending of the inventory instruction to the target shelf causes the target shelf to obtain, by the corresponding scanning device, target electronic tag information on all target electronic tags within a scanning range of the scanning device, the method further includes:
obtaining an authorized user corresponding to the target electronic tag according to the electronic tag information on the target electronic tag;
acquiring a portrait of a user, and identifying a target person according to the acquired portrait;
and if the target person is identified not to be matched with the authorized user corresponding to the target electronic tag, executing an alarm program.
In a second aspect, a shelf inventory device based on radio frequency identification is provided, which includes:
the task generation unit is used for generating an inventory task list according to a self-defined inventory requirement, and the inventory task list comprises a target shelf which is appointed to be inventory;
an object acquisition unit for
The instruction sending unit is used for sending an inventory instruction to the target shelf so that the target shelf can obtain target electronic tag information on all target electronic tags in the scanning range of the scanning equipment through the scanning equipment;
and the report generating unit is used for comparing and analyzing all the target electronic tag information and the goods information corresponding to all the target shelves in the preset database to generate an inventory report.
In a third aspect, a computer device is provided, comprising a memory and a processor, wherein the memory stores computer readable instructions, and the computer readable instructions, when executed by the processor, cause the processor to perform the steps of the rfid-based shelf inventory method described above.
In a fourth aspect, a storage medium is provided that stores computer readable instructions, which when executed by one or more processors, cause the one or more processors to perform the steps of the rfid-based shelf inventory method described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the shelf inventory method, the shelf inventory device, the computer equipment and the storage medium based on the radio frequency identification, an inventory task list is generated according to a self-defined inventory requirement, and the inventory task list comprises a target shelf which is specified to be inventory; and then determining all target shelves specified by the checking task list according to the checking task list, and then sending a checking instruction to the target shelves so that the target shelves obtain target electronic tag information on all target electronic tags in the scanning range of the scanning equipment through the scanning equipment. After the target electronic tag information is obtained, all the target electronic tag information and the goods information corresponding to all the target goods shelves in the preset database are compared and analyzed, and finally an inventory report is generated. Like this, can be according to self-defined inventory demand, through using the goods shelves as the unit, combine the electronic tags who binds with goods on the scanning device remote scanning goods shelves, realize inventorying and the automatic generation report of inventorying the storehouse goods shelves, reduced numerous and diverse manual operation, promote the intelligent degree and the efficiency of inventorying that storehouse goods shelves were inventoryed.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
Fig. 1 is an environment diagram for implementing the rfid-based shelf inventory method according to an embodiment.
Fig. 2 is a flow diagram illustrating a method for shelf inventory based on rfid, according to an example embodiment.
Fig. 3 is a flow chart illustrating another rfid-based shelf inventory method according to the corresponding embodiment of fig. 2.
Fig. 4 is a flowchart illustrating a specific implementation of step S130 in the rfid-based shelf inventory method according to the corresponding embodiment of fig. 2.
Fig. 5 is a flowchart illustrating a specific implementation of step S130 in the rfid-based shelf inventory method according to the corresponding embodiment of fig. 2.
Fig. 6 is a flow chart illustrating another rfid-based shelf inventory method according to the corresponding embodiment of fig. 2.
Fig. 7 is a flowchart illustrating a specific implementation of step S140 in the rfid-based shelf inventory method according to the corresponding embodiment of fig. 2.
Fig. 8 is a flow chart illustrating another rfid-based shelf inventory method according to the corresponding embodiment of fig. 7.
Fig. 9 is a block diagram illustrating a rfid-based shelf inventory apparatus according to an exemplary embodiment.
Fig. 10 schematically illustrates an example block diagram of an electronic device for implementing the rfid-based shelf inventory method described above.
Fig. 11 schematically illustrates a computer-readable storage medium for implementing the rfid-based shelf inventory method described above.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a diagram of an implementation environment of the rfid-based shelf inventory method provided in an embodiment, as shown in fig. 1, in which a computer device 100 and a plurality of shelves 200 connected to the computer device 100 are included.
The computer device 100 is a shelf inventory system device, for example, a computer device such as a computer or a server used by a shelf inventory person. Shelf 200 has mounted thereon a plurality of rfid tags for tag scanning. After the shelf inventory personnel customize the inventory requirement, the computer device 100 generates an inventory task list, wherein the inventory task list comprises the specified target shelf to be inventory, then determines all the target shelves specified by the inventory task list according to the inventory task list, and sends an inventory instruction to the shelf 200. The shelf 200 acquires, by the scanning device, target electronic tag information on all target electronic tags within a scanning range of the scanning device, and then returns the acquired electronic tag information to the computer device 100. The computer device 100 compares and analyzes all the target electronic tag information and the goods information corresponding to all the target shelves in the preset database, and finally generates an inventory report.
It should be noted that the computer device 100 may be, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, and the like. The computer device 100 and the shelf 200 may be connected by bluetooth, USB (Universal serial bus), or other communication connection methods, which is not limited herein.
As shown in fig. 2, in an embodiment, a shelf inventory method based on radio frequency identification is provided, and the shelf inventory method based on radio frequency identification may be applied to the computer device 100, and specifically may include the following steps:
step S110, generating an inventory task list according to a self-defined inventory requirement, wherein the inventory task list comprises a target shelf which is appointed to be inventory;
step S130, sending an inventory instruction to the target shelves, so that the target shelves obtain target electronic tag information on all target electronic tags in the scanning range of the scanning device through corresponding scanning devices, wherein each target shelf is provided with a corresponding scanning device, and the target electronic tag information is information of electronic tags arranged on goods;
and step S140, comparing and analyzing all target electronic label information and the goods information corresponding to all target shelves in the preset database to generate an inventory report.
The invention provides a shelf checking method based on wireless radio frequency identification, which can improve the intelligent degree of warehouse shelf checking. The radio frequency identification technology is a rapid, long-distance and non-contact automatic identification technology based on microwave radio frequency signals, and the working principle is as follows: after the tag enters a magnetic field, a radio frequency signal sent by scanning equipment is received, product information (a passive tag or a passive tag) stored in a chip is sent out by means of energy obtained by induced current, or a signal with a certain frequency (an active tag or an active tag) is actively sent out by the tag, and the scanning equipment reads and decodes the information and sends the information to a central information system for related data processing. In the invention, a plurality of scanning devices are distributed for each shelf in advance (the specific quantity and distribution can be determined according to the size of the shelf and the coverage range of a signal emitted by the scanning devices), and a unique electronic tag is attached to each goods on the shelf, and each scanning device can identify the specified quantity of electronic tags in the scanning range. The electronic tag can be an active electronic tag and is used for actively detecting whether a calling signal emitted by scanning equipment exists in the periphery and transmitting the electronic tag information stored in the electronic tag information to the scanning equipment, wherein the electronic tag information mainly comprises the basic attributes of assets such as the ID number, name and category of goods and the attributes of security and confidentiality management, authorized users, goods storage areas and the like. Just so can be according to self-defined inventory demand, through using the goods shelves as the unit, combine the electronic tags who binds with goods on the scanning equipment remote scanning goods shelves, realize inventorying and the automatic generation report of inventorying the storehouse goods shelves, reduced numerous and diverse manual operation, promote the intelligent degree and the efficiency of inventorying that storehouse goods shelves were inventoryed.
Optionally, a timed inventory task may be set, and a periodic inventory report is generated to follow up and manage the goods state of the warehouse shelf in real time.
Fig. 3 shows that, in an embodiment, after step S130 in the corresponding embodiment of fig. 2, the rfid-based shelf inventory method may further include the following steps.
Step S150, obtaining an authorized user corresponding to the target electronic tag according to the electronic tag information on the target electronic tag;
step S160, acquiring a portrait of a user, and identifying a target person according to the acquired portrait;
and step S170, if the target person is identified not to be matched with the authorized user corresponding to the target electronic tag, executing an alarm program.
In the present embodiment, it is recognized whether the target person is an authorized user by automatically capturing live images, and an alarm is automatically triggered when the target person is not an authorized user. Therefore, the safety of the goods shelf can be enhanced, and non-working personnel can be prevented from stealing goods and information on the goods shelf.
Optionally, in another embodiment, the scanning device is disposed at a monitoring doorway, and if the scanning device detects the target electronic tag and identifies that the target person is an illegal person, the scanning device triggers an entrance guard alarm. Therefore, the target assets and related personnel can be managed by combining the access control system, and an alarm sound effect can be given out to remind surrounding personnel that the target assets are being taken out illegally.
Optionally, fig. 4 is a detailed description of step S130 in the shelf inventory method based on radio frequency identification according to the corresponding embodiment of fig. 2, where the shelf inventory method based on radio frequency identification is applied to a zigbee network, the zigbee network is formed by a coordination node and a plurality of terminal nodes in a self-organizing manner, the terminal nodes correspond to any target scanning device of a target shelf, and the zigbee network further includes a sink node, in the method, step S130 may include the following steps:
step S131, sending an inventory instruction to a coordination node corresponding to the target shelf through a sink node, so that the coordination node forwards the inventory instruction to all terminal nodes connected with the coordination node;
step S132, the sink node receives the target electronic tag information forwarded to the coordination node, and the terminal node acquires the target electronic tag information on all the target electronic tags in the scanning range of the target scanning device through respective target scanning devices.
According to the scheme, the Zigbee technology is utilized to carry out networking on the plurality of shelves and the plurality of scanning devices included by one shelf, corresponding nodes (scanning devices) can be accessed to the network according to actual conditions, data is transmitted among the plurality of nodes forming the networking in a relay mode, and flexibility and high efficiency of data acquisition and transmission are improved.
Optionally, fig. 5 is a detailed description of step S130 in the shelf inventory method based on rfid according to the corresponding embodiment of fig. 2, where in the shelf inventory method based on rfid, step S130 may include the following steps:
step S136, sending an inventory instruction to the target scanning equipment bound to the target shelf, so that the target scanning equipment responds to the inventory instruction and performs identity verification on all target electronic tags in the scanning range of the target scanning equipment;
and step S137, according to the identity verification result, acquiring target electronic tag information of all the target electronic tags passing the identity verification in the scanning range of the target scanning equipment through the target scanning equipment.
Because the scanning device that every goods shelves were bound is only responsible for the electronic tags information of scanning current goods shelves material, in order to guarantee that scanning device and electronic tags belong to same goods shelves and legal, this embodiment carries out authentication before the inventory goods.
In one embodiment of the present invention, the method for authenticating identity includes reading, by a target scanning device, a User Identification (UID) of any electronic tag within a scanning range of the target scanning device, and dispersing a root key using the UID to obtain a dispersed key consistent with a personalized key stored in the electronic tag. And then, sending an identification instruction to the electronic tag through the target scanning equipment to obtain a first tag random number which is generated and returned after the electronic tag receives the identification instruction. And then generating a first random number of the scanning equipment by the target scanning equipment, encrypting the first random number of the label and the first random number of the scanning equipment by using the dispersed key to obtain an identity token, and sending the identity token to the electronic label so that the electronic label decrypts the identity token by using the personalized key to obtain a second random number of the label and a random number of the second scanning equipment. And finally, receiving a second scanning equipment random number sent by the electronic tag when the second label random number is judged to be consistent with the first label random number through the target scanning equipment, judging whether the first scanning equipment random number is consistent with the second scanning equipment random number or not, and if so, taking the electronic tag as the target electronic tag.
For the scanning equipment and the electronic tag on the same shelf, a corresponding root key and an individualized key are pre-distributed; the generation principle of the first label random number/the first scanning equipment random number is mainly based on a linear congruence algorithm, different random numbers are generated in a recursion mode, and the formula for generating the random numbers is
Ni+1＝(A×Ni+B)(modM)，i＝0，1，…，M-1
Wherein A, B and M are constants respectively set by the electronic tag and the scanning device, NiThe random number generated last time by the electronic device and the scanning device.
Optionally, in another embodiment of the present invention, a manner of obtaining a distributed key consistent with the personalized key stored in the electronic tag by using the UID to distribute the root key is specifically: if the root key length is N bytes, taking the rightmost N bytes of the UID as first input data; performing a 3DES operation on the first input data using the root key to obtain a left half of the distributed key; obtaining second input data after negating the rightmost N bytes of the UID; performing a 3DES operation on the second input data using the root key to obtain a right half of the distributed key; and combining the left half part and the right half part of the scattered key to obtain the complete scattered key. Therefore, the checking operation among different goods shelves can be guaranteed not to be influenced mutually, and meanwhile, the communication safety between the scanning equipment and the electronic tag is guaranteed.
Optionally, in an embodiment shown in fig. 6, each shelf is pre-assigned with a unique shelf number and a shelf tag, the inventory task sheet includes a shelf tag that is specified to be inventoried, and after step S130 in the embodiment corresponding to fig. 2, the method for inventory of shelves based on radio frequency identification may further include the following steps:
step S121, analyzing shelf labels contained in the checking task list according to the checking task list;
and S122, acquiring a target shelf specified by the checking task list according to the shelf label contained in the checking task list.
The shelf label is used for indicating classification information of shelf materials, including departments, categories, suppliers and the like.
The target shelf to be checked is determined through the shelf label, multiple shelf combinations can be combined according to requirements, and the flexibility and efficiency of shelf checking are improved.
Optionally, fig. 7 is a detailed description of step S140 in the shelf inventory method based on radio frequency identification according to the corresponding embodiment of fig. 2, in the shelf inventory method based on radio frequency identification, the inventory task list further includes an inventory task type, the inventory task type includes at least one of data inventory and quantity inventory, and step S140 may further include the following steps:
step S141, determining the type of the checking task according to the checking task list;
step S142, if the type of the checking task is quantity checking, analyzing the quantity of target electronic tags obtained by scanning different target shelves, and judging whether the quantity of the target electronic tags is equal to the quantity of goods corresponding to the target shelves in a preset database;
step S143, if the number of the target electronic tags is not equal to the number of the goods corresponding to the target shelf in the preset database, finding out the missing goods from all the goods corresponding to the target shelf in the preset database according to the target electronic tag information of all the target electronic tags;
and step S144, generating an inventory report according to the list of the missing goods.
In one embodiment of the present invention, an inventory configuration map may be visually and graphically established for each shelf, and the item numbers and storage locations of all the items on the shelf are displayed on the inventory configuration map. Therefore, after the missing goods are found out from all the goods corresponding to the target shelf in the preset database, the preset position information corresponding to the missing goods in the checking configuration diagram of the target shelf can be lost and labeled according to the preset position information of the missing goods, and loss alarm information is prompted. Therefore, the lost state of goods is updated on the shelf inventory configuration diagram in time, and the visual degree of shelf inventory management can be improved.
In another embodiment of the present invention, the electronic tag information further includes different fields corresponding to different types of goods information, for example, a goods number, a type, a name, state information (shelf life, etc.), usage information (warehousing time and history), location information, etc. in the inventory process, if the inventory task is data inventory, field matching is performed on all target electronic tag information obtained by scanning different target shelves and all goods information corresponding to the target shelf in a preset database, and the target electronic tag information having unmatched fields and specific error information thereof are analyzed to generate an inventory report.
Optionally, after step S143 of another rfid-based shelf inventory method shown in fig. 8 according to the corresponding embodiment of fig. 7, the rfid-based shelf inventory method may further include the following steps:
step S145, acquiring any three scanning devices which detect target electronic tags at preset time intervals, wherein the target electronic tags are electronic tags corresponding to the omitted goods;
step S146, positioning the missing goods through any three scanning devices to obtain real-time position information of the missing goods;
and step S147, updating the moving track of the missing goods according to the historical position information and the real-time position information of the missing goods.
Therefore, the plurality of scanning devices are networked for monitoring, the limitation of the monitoring range of a single scanning device can be made up, the monitoring range of goods is enlarged, and the moving track of the goods can be flexibly tracked.
In one embodiment, the method for obtaining the real-time position information of the missed goods by positioning the missed goods through any three scanning devices specifically includes respectively transmitting a first positioning signal, a second positioning signal and a third positioning signal to the target electronic tag through a first scanning device, a second scanning device and a third scanning device. And then, according to a first propagation time from the emission of the first signal by the first scanning device to the reception of a first response signal returned by the target electronic tag for the first signal, calculating to obtain a first distance between the first scanning device and the target electronic tag, and correspondingly, obtaining a second distance between the second scanning device and the target electronic tag and a third distance between the third scanning device and the target electronic tag. And finally, based on a triangulation method, obtaining first position information of the target asset corresponding to the target electronic tag according to the first distance value, the second distance value, the third distance value and the positioning information of the three scanning devices.
The formula of the triangulation method is specifically as follows:
Figure BDA0002157121110000111
the positioning coordinates of the target electronic tag are set to be (x, y, z), and the positioning coordinates of the first scanning device, the second scanning device and the third scanning device are respectively: (x1, y1, z1), (x2, y2, z2), and (x3, y3, z3), and the values of distances between the first scanning apparatus, the second scanning apparatus, and the third scanning apparatus and the target electronic tag are R1, R2, and R3, respectively.
As shown in fig. 9, in an embodiment, there is provided a rfid-based shelf inventory device, which may be integrated in the computer device 100, and specifically may include: a task generating unit 110, an instruction transmitting unit 130, and a report generating unit 140.
The task generating unit 110 is configured to generate an inventory task sheet according to a user-defined inventory requirement, where the inventory task sheet includes a target shelf specified to be inventoried;
the instruction sending unit 130 is configured to send an inventory instruction to the target shelf, so that the target shelf obtains, through the scanning device, target electronic tag information on all target electronic tags within a scanning range of the scanning device;
and the report generating unit 140 is configured to compare and analyze all the target electronic tag information and the item information corresponding to all the target shelves in the preset database, and generate an inventory report.
The implementation processes of the functions and actions of the modules in the device are specifically described in the implementation processes of the corresponding steps in the shelf inventory method based on radio frequency identification, and are not described herein again.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Moreover, although the steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.
In an exemplary embodiment of the present disclosure, an electronic device capable of implementing the above method is also provided.
As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or program product. Thus, various aspects of the invention may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.
An electronic device 500 according to this embodiment of the invention is described below with reference to fig. 10. The electronic device 500 shown in fig. 10 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 10, the electronic device 500 is embodied in the form of a general purpose computing device. The components of the electronic device 500 may include, but are not limited to: the at least one processing unit 510, the at least one memory unit 520, and a bus 530 that couples various system components including the memory unit 520 and the processing unit 510.
Wherein the storage unit stores program code that is executable by the processing unit 510 to cause the processing unit 510 to perform steps according to various exemplary embodiments of the present invention as described in the above section "exemplary methods" of the present specification. For example, the processing unit 510 may execute step S110 shown in fig. 2, and generate an inventory task sheet according to a customized inventory requirement, where the inventory task sheet includes a target shelf specified to be inventory; step S130, sending an inventory instruction to the target shelf, so that the target shelf acquires target electronic tag information on all target electronic tags in a scanning range of the scanning device through the scanning device; and step S140, comparing and analyzing all target electronic label information and the goods information corresponding to all target shelves in the preset database to generate an inventory report.
The memory unit 520 may include a readable medium in the form of a volatile memory unit, such as a random access memory unit (RAM)5201 and/or a cache memory unit 5202, and may further include a read only memory unit (ROM) 5203.
Storage unit 520 may also include a program/utility 5204 having a set (at least one) of program modules 5205, such program modules 5205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
Bus 530 may be one or more of any of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.
The electronic device 500 may also communicate with one or more external devices 700 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 500, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 500 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 550. Also, the electronic device 500 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 560. As shown, the network adapter 560 communicates with the other modules of the electronic device 500 over the bus 530. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 500, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.
In an exemplary embodiment of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, aspects of the invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the invention described in the above section "exemplary methods" of the present description, when said program product is run on the terminal device.
Referring to fig. 11, a program product 600 for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations for aspects of the present invention may be written 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 and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).
Furthermore, the above-described figures are merely schematic illustrations of processes involved in methods according to exemplary embodiments of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. A shelf inventory method based on radio frequency identification is characterized by comprising the following steps:
generating an inventory task list according to a self-defined inventory requirement, wherein the inventory task list comprises a target shelf which is appointed to be inventoried;
sending an inventory instruction to the target shelf, so that the target shelf acquires target electronic tag information on all target electronic tags in a scanning range of the scanning equipment through corresponding scanning equipment, wherein each target shelf is provided with corresponding scanning equipment, and the target electronic tag information is information of electronic tags arranged on goods;
and comparing and analyzing all target electronic tag information and the goods information corresponding to all target goods shelves in the preset database to generate an inventory report.
2. The method according to claim 1, wherein the method is applied to a zigbee network, the zigbee network is formed by a coordination node and a plurality of terminal nodes in a self-organizing manner, the terminal nodes correspond to any target scanning device of a target shelf, the zigbee network further includes a sink node, the sink node is connected to the plurality of coordination nodes, and the step of sending an inventory instruction to the target shelf so that the target shelf acquires target electronic tag information on all target electronic tags within a scanning range of the scanning device through the corresponding scanning device includes:
sending an inventory instruction to a coordination node corresponding to the target shelf through a sink node, so that the coordination node forwards the inventory instruction to all terminal nodes connected with the coordination node;
and receiving, by the sink node, the target electronic tag information forwarded to the coordinating node, and acquiring, by the terminal node, the target electronic tag information on all the target electronic tags within the scanning range of the target scanning device through respective target scanning devices.
3. The method as claimed in claim 1, wherein the step of sending an inventory command to the target scanning device bound to the target shelf, so that the target scanning device obtains the target electronic tag information on all target electronic tags in the scanning range of the target scanning device in response to the inventory command, comprises:
sending an inventory instruction to target scanning equipment bound to the target shelf, so that the target scanning equipment responds to the inventory instruction and performs identity verification on all target electronic tags in the scanning range of the target scanning equipment;
and according to the identity verification result, acquiring target electronic tag information of all the target electronic tags passing the identity verification in the scanning range of the target scanning equipment by the target scanning equipment.
4. The method of claim 1, wherein each shelf is pre-assigned with a unique shelf number and a shelf label, the inventory task order includes a shelf label designated to be inventoried, and after the inventory task order is generated according to the customized inventory requirement, the method further includes:
analyzing shelf labels contained in the checking task list according to the checking task list;
and acquiring a target shelf specified by the checking task list according to the shelf label contained in the checking task list.
5. The method of claim 1, wherein the inventory task list further includes an inventory task type, the inventory task type includes at least one of data inventory and quantity inventory, the comparing and analyzing all target electronic tag information and the item information corresponding to all target shelves in the preset database, and the generating the inventory report includes:
determining the type of the checking task according to the checking task list;
if the type of the checking task is quantity checking, analyzing the quantity of target electronic tags obtained by scanning different target shelves, and judging whether the quantity of the target electronic tags is equal to the quantity of goods corresponding to the target shelves in a preset database;
if the quantity of the target electronic tags is not equal to the quantity of the goods corresponding to the target shelf in a preset database, finding out the missing goods from all the goods corresponding to the target shelf in the preset database according to the target electronic tag information of all the target electronic tags;
and generating an inventory report according to the list of the missing goods.
6. The method of claim 5, wherein after finding the missing item from all items in the predetermined database corresponding to the target shelf, the method further comprises:
acquiring any three scanning devices for detecting a target electronic tag every preset time, wherein the target electronic tag is an electronic tag corresponding to a missed goods;
positioning the missing goods through any three scanning devices to obtain real-time position information of the missing goods;
and updating the moving track of the omitted goods according to the historical position information and the real-time position information of the omitted goods.
7. The method of claim 1 or 2, wherein after sending the inventory command to the target shelf to enable the target shelf to obtain target electronic tag information on all target electronic tags within a scanning range of the scanning device through the corresponding scanning device, the method further comprises:
obtaining an authorized user corresponding to the target electronic tag according to the electronic tag information on the target electronic tag;
acquiring a portrait of a user, and identifying a target person according to the acquired portrait;
and if the target person is identified not to be matched with the authorized user corresponding to the target electronic tag, executing an alarm program.
8. A shelf inventory device based on rfid, the device comprising:
the task generation unit is used for generating an inventory task list according to a self-defined inventory requirement, and the inventory task list comprises a target shelf which is appointed to be inventory;
the instruction sending unit is used for sending an inventory instruction to the target shelf so that the target shelf can acquire target electronic tag information on all target electronic tags in a scanning range of the scanning equipment through corresponding scanning equipment, wherein each target shelf is provided with corresponding scanning equipment, and the target electronic tag information is information of the electronic tags arranged on goods;
and the report generating unit is used for comparing and analyzing all the target electronic tag information and the goods information corresponding to all the target shelves in the preset database to generate an inventory report.
9. A computer device comprising a memory and a processor, the memory having stored therein computer-readable instructions that, when executed by the processor, cause the processor to perform the method of any of claims 1 to 7.
10. A storage medium storing computer-readable instructions that, when executed by one or more processors, cause the one or more processors to perform the method of any one of claims 1-7.
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