CN112101842A - Asset intelligent checking method based on RFID microwave signal - Google Patents
Asset intelligent checking method based on RFID microwave signal Download PDFInfo
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- 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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Abstract
The invention relates to the technical field of data processing and intelligent inventory, in particular to an asset intelligent inventory method based on RFID microwave signals. The RFID tag is used as a carrier, an RFID reader-writer and a processor are used for receiving RFID signals, data are gathered, counted and analyzed, the checking result is displayed finally, the RFID electronic tag is adhered to each asset, tag information is unique, chip data of the tag can be read and written within the range of 0.05-20 meters without passing through a sight line or being in direct contact with the chip data; the technical problems that manual checking is inconvenient and mistakes are easy to make in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of data processing and intelligent inventory, in particular to an asset intelligent inventory method based on RFID microwave signals.
Background
Fixed assets of enterprises are more and more diversified, and in order to strengthen asset management, guarantee the safety, integrity and accuracy of the assets, truly reflect the balance and management states of the assets and enable inventory of the assets to be more standardized and institutionalized, systematic inventory management of the assets of the enterprises is required. However, at present, both the traditional manual checking and the handheld terminal for bar code label pasting scanning checking need time consumption cost and labor cost, and cannot meet the requirement of rapid checking and accounting assets of enterprises. The existing asset checking needs to rely on paper bar code labels, a handheld terminal needs to be held manually to the site to find the bar code labels for scanning, and the site luminosity brightness influences the scanning efficiency; the storage time of the paper bar code label is short, and some heat-sensitive label paper can be damaged when being heated.
In another checking mode, a checking list is printed, a checking person holds the checking list, finds out the corresponding assets at the corresponding positions, looks up the assets by naked eyes manually, and checks the quantity manually; some similar assets are easily identified as misleading, and manual points are more easily mistaken.
Therefore, there is a need for improvement of the prior art to solve the above technical problems.
Disclosure of Invention
In view of this, an object of the present invention is to provide an asset intelligent inventory method based on RFID microwave signals, which solves the technical problems of inconvenience and error liability of manual inventory in the prior art. The method is realized by the following technical scheme:
the first aspect of the embodiment of the invention relates to an asset intelligent inventory method based on RFID microwave signals, which comprises the following steps:
s1, writing asset information B of an asset a into an RFID electronic tag C, and connecting the RFID electronic tag C with the asset a, wherein the asset of the enterprise is generally equipment owned by the enterprise, the RFID electronic tag can be adhered or locked on the asset a through screws, the asset a belongs to an in-warehouse state in a system, the set formed by all assets is A, the set formed by all asset information is B, the set formed by all RFID electronic tags is C, and the set formed by all departments is D;
s2, distributing the assets a, namely placing the assets a in distributed departments D, namely placing specific equipment in the specific departments, wherein the set formed by all the departments is D;
s3, repeating the steps in the step A until all the assets are distributed to a specific department;
s4, setting an RFID reader-writer E in the department d, wherein the set formed by all the RFID reader-writers is E;
s5, repeating the steps in the step D until all departments are provided with RFID readers, and each department is provided with one RFID reader;
s6, starting all the RFID readers and writers in the E, sending query signals in a readable range, wherein the readable range covers the positions of all assets of the department where the RFID readers and writers are located, the signal range of the RFID readers and the signal range of the RFID electronic tag are wide, and the radius can reach several meters or even dozens of meters generally;
s7, the RFID electronic tag receiving the query signal sends asset information to the RFID reader-writer, the RFID reader-writer transmits the received asset information to a processor, and the processor can adopt a computer with a statistical calculation function;
and S8, the processor collects and analyzes the information.
Further, the asset information b in the step S1 includes an asset name, an asset type, an asset serial number, a usage department, an asset status, and a current date, the asset information of different assets is different, and each asset generates unique asset information.
Further, the step S6 further includes setting the authority of the RFID reader, where the authority of the RFID reader limits that the RFID reader of a specific department can only receive the asset information sent by the RFID electronic tag connected to the asset in the department, and each RFID reader only counts the asset information allocated to the department.
Further, the step S8 of analyzing and processing the summarized information specifically includes the steps of:
s81, determining asset information Ie received by a specific RFID reader-writer E, and repeating the steps in E until all the asset information IE received by the RFID reader-writer is determined;
s82, analyzing and processing the asset information;
the step S82 specifically includes:
I. generating an asset card;
II, managing equipment change;
III, asset inventory management;
IV, equipment archive management statistics;
v, asset maintenance management;
VI, asset statistical analysis;
the I specifically comprises the following steps:
the method comprises the steps of S1, determining a company hierarchical structure and positions of D departments in the company hierarchical structure, and repeating the steps in the step D until the positions of all the departments in the company hierarchical structure are determined, wherein the company hierarchical structure displays the relationship between the company and each department, such as company-factory-production department-workshop-digital display lathe, and displays each asset, namely the position of equipment in the company hierarchical structure;
s2, determining all assets in the department D, and repeating the steps in the step D until all the assets of all the departments in the company hierarchical structure are determined, and generating an asset card;
the II comprises the following steps:
after the time T, the sii1 repeats steps S1, S2, S3, S4, S5, S6, S7, and S81, generates asset information IE ' received by all RFID readers after the time T elapses, compares IE ' with IE ' to generate device change information, where the time T may be set to 0.5 day, the device change management record includes information of device internal dial, device deactivation, device seal, seal unseal, device idle, idle activation, deactivation activation, device scrapping, device change selling, and the like, and a company may establish different form styles according to needs.
The III specifically comprises the following steps:
SIII1, determining asset list information Id of the department D, and repeating the steps in the step D until the asset information IDs of all departments are determined;
SIII2, comparing IE with the ID, and generating difference information I difference which represents the difference between the information in SI2 and the assets in the asset list, wherein I difference = ID-IE, namely the difference between the statistical list and the actual assets is normal I difference =0, if I difference is not equal to 0, the reason for the difference needs to be investigated;
the IV specifically comprises the following steps:
SIV1, generating an asset detail account comprising the information of the step S81;
siv2. determining the age y and time x of start of use of the asset a, generating predicted expiration time information Z, Z = y-x, repeating the above steps in a until a set Z of predicted expiration time information for all assets is generated;
generating an asset forecast due ledger from information in the SIV 2;
the V specifically comprises the following steps:
SV1, determining the maintenance time, maintenance times and fault types of the assets a, generating the maintenance information of the assets a, and repeating the steps in A until the maintenance information of all the assets is generated;
SV2, generating asset maintenance detail account according to the information in SV 1;
the VI specifically comprises the following steps:
SVI1, determining information in IEs of different departments to generate department statistical information according to department classification, generating asset class statistical information according to asset class classification, and generating region statistical information according to geographic region position classification;
and SVI2. generating a statistical graph according to the information in the SVI1, wherein the statistical graph can be represented by a pie chart or a bar chart.
Further, the working frequency of the RFID tag is high frequency or ultra high frequency, typical working frequencies of the high frequency and ultra high frequency RFID include 56MHz, 915MHz, 2450MHz, 5800MHz, and the like, the system also has a plurality of international standards for supporting in these frequency bands, and the working frequency of the RFID tag may be one or more of the above frequencies.
Furthermore, the RFID reader-writer comprises a control module, a high-frequency communication module and a read-write antenna, and the RFID reader-writer realizes the read-write of the data transmitted by the RFID electronic tag.
Further, the RFID electronic tag comprises a tag antenna, a logic control unit, a modulator, a demodulator and a voltage regulator; the tag antenna is used for receiving and transmitting signals; the logic control unit is used for deciphering the signals transmitted by the RFID reader-writer and generating signals returned to the RFID reader-writer; the modulator is used for modulating the signal generated by the logic control unit; the demodulator is used for demodulating signals; the voltage adjusting unit is used for converting the received radio frequency signal into a direct current signal, and the storage unit is used for storing data generated when the RFID electronic tag operates.
Further, in the step S6, the query signal is sent in a manner that the RFID reader sends a microwave signal, and the RFID tag is activated by the microwave signal to send asset information.
The positive and beneficial technical effects of the invention comprise:
(1) the asset management system finishes the asset checking without manual checking, so that the checking accuracy is improved, and the labor, material and time costs are saved;
(2) the enterprise asset inventory is more standardized, and the management of the enterprise is perfected;
(4) the enterprise can clearly obtain the asset checking result, reduce the asset waste to the maximum extent, improve the asset use efficiency of the enterprise, perfect the management of the enterprise assets, maximize the resource utilization of the enterprise, and improve the enterprise image and the market competitiveness
(5) Personnel on different work posts can acquire the state of the enterprise assets, namely equipment, through the system, so that the operation and management of the equipment by the personnel are facilitated;
(6) the invention adopts RFID radio frequency technology, which is a non-contact automatic identification technology, and identifies a target object and obtains related data through radio frequency signals, the identification work does not need manual intervention, and the RFID electronic tag is used as a wireless version of a bar code, and has the characteristics of water resistance, magnetism prevention, high temperature resistance, long service life, large reading distance, capability of encrypting data on the tag, larger capacity of stored data and free change of stored information; RFID tags can identify a single, very specific object, rather than just one type of object as with bar codes; a plurality of objects can be identified and read at the same time, and the bar codes can be read only one by one; the amount of information stored is large; the RFID electronic tag and the RFID reader-writer adopt radio frequency technology, data can be read through external materials, and the bar code must read information on the surface of a material medium by laser or infrared;
other advantageous effects of the present invention will be further described with reference to the following specific examples.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a system diagram according to an embodiment of the present invention;
FIG. 2 is a flow chart of a system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a corporate hierarchy provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an RFID electronic tag provided in an embodiment of the present invention.
Detailed Description
Example 1: an asset intelligent inventory method based on RFID microwave signals, as shown in FIGS. 1-4, comprises the following steps:
s1, writing asset information B of an asset a into an RFID electronic tag C, and connecting the RFID electronic tag C with the asset a, wherein the asset of the enterprise is generally equipment owned by the enterprise, the RFID electronic tag can be adhered or locked on the asset a through screws, the asset a belongs to an in-warehouse state in a system, the set formed by all assets is A, the set formed by all asset information is B, the set formed by all RFID electronic tags is C, and the set formed by all departments is D;
s2, distributing the assets a, namely placing the assets a in distributed departments D, namely placing specific equipment in the specific departments, wherein the set formed by all the departments is D;
s3, repeating the steps in the step A until all the assets are distributed to a specific department, and after the assets are distributed to the specific department, monitoring the assets by corresponding management personnel, wherein the assets belong to an in-use state;
s4, setting an RFID reader-writer E in the department d, wherein the set formed by all the RFID reader-writers is E;
s5, repeating the steps in the step D until all departments are provided with RFID readers, each department is provided with one RFID reader, the assets of each department are pasted with RFID electronic tags, and each department is provided with the RFID reader, and the number of receiving antennas of the RFID readers is determined according to the use area of the department;
s6, starting all the RFID readers and writers in the E, sending query signals in a readable range, wherein the readable range covers the positions of all assets of the department where the RFID readers and writers are located, the signal range of the RFID readers and the signal range of the RFID electronic tag are wide, and the radius can reach several meters or even dozens of meters generally;
s7, the RFID electronic tag receiving the query signal sends asset information to the RFID reader-writer, the RFID reader-writer transmits the received asset information to a processor, and the processor can adopt a computer with a statistical calculation function;
s8, the processor collects and analyzes information, the whole system uses the RFID electronic tag as a carrier, the RFID reader-writer and the processor are used for collecting, counting and analyzing signal data transmitted and received by the RFID electronic tag and the RFID reader-writer, and finally, an inventory result is displayed.
The information summarizing and analyzing process in step S8 may further include a master DNS server, a plurality of cache DNS servers, a processor, and a plurality of RFID readers; the cache DNS server has the same domain name, and a unique identification domain name code is prestored in each of the plurality of RFID readers, and the specific method in step S1 includes:
the RFID reader-writer is connected with the master control DNS server; the RFID reader sends a first query request to the master control DNS server, wherein the first query request comprises a domain name of a cache DNS server, and the first query request is used for requesting an IP address of the cache DNS server; the caching DNS server is any one of the plurality of caching DNS servers; the RFID reader-writer is any one of the RFID electronic tags; the RFID reader-writer receives a first query response sent by the master control DNS server, wherein the first query response comprises the IP address of the cache DNS server; the RFID reader-writer establishes connection with the cache DNS server according to the IP address of the cache DNS server; the RFID reader sends a second query request to the cache DNS server, wherein the second query request comprises an identifier of the RFID reader, and the second query request is used for requesting an IP address and a port number of the processor; the RFID reader receives a second query response sent by the cache DNS server, wherein the second query response comprises the IP address and the port number of the processor; the second query request is also used for requesting an initial authentication key, an encryption algorithm and authentication levels, and the second query response also comprises the initial authentication key, the encryption algorithm and the authentication levels corresponding to the RFID reader-writer; and the RFID reader communicates with the processor according to the IP address and the port number of the processor, and sends the data obtained by the RFID reader to the processor.
The step S1 is to combine the master DNS server, the plurality of cache DNS servers, the processor, and the plurality of RFID readers to form an intelligent RFID information collection platform, and through the mutual cooperation of the master DNS server, the plurality of cache DNS servers, the processor, and the plurality of RFID readers, the unique collection of data can be accurately achieved, and the defect of data loss or unreliable data due to data transmission disorder is avoided.
In this embodiment, in step S1, the asset information b includes an asset name, an asset type, an asset serial number, a use department, an asset state, and a current date, the asset information of different assets is different, each asset generates unique asset information, the RFID electronic tags are numbered, a numbering rule is set by a system, each RFID electronic tag generates a unique number, at this time, the asset belongs to an in-store state in the system, and can be allocated to a specific department and a specific use location, an RFID electronic tag is issued every time an apparatus is newly added, that is, an asset is added, which is equivalent to an identification card of the apparatus, and the RFID electronic tags correspond to the apparatus one to one, and are written with information such as an asset number, an asset name, a use department, and an asset state.
In this embodiment, the step S6 further includes setting an authority of the RFID reader, where the authority of the RFID reader limits that the RFID reader of a specific department can only receive asset information sent by the RFID electronic tag connected to the asset in the department, and each RFID reader only counts asset information allocated to the asset in the department.
In this embodiment, the step S8 of analyzing and processing the summarized information specifically includes the steps of:
s81, determining asset information Ie received by a specific RFID reader-writer E, and repeating the steps in E until all the asset information IE received by the RFID reader-writer is determined;
s82, analyzing and processing the asset information;
the step S82 specifically includes:
I. generating an asset card;
II, managing equipment change;
III, asset inventory management;
IV, equipment archive management statistics;
v, asset maintenance management;
VI, asset statistical analysis;
the I specifically comprises the following steps:
SI1. determining the company hierarchy and the position of the D-departments in the company hierarchy, repeating the above steps in D until the position of all departments in the company hierarchy is determined, the company hierarchy showing the relationship of the company to the various departments, such as company-factory-Producer-shop-digital display lathe, showing the various assets, i.e. the position of the equipment in the company hierarchy, as shown in FIG. 3;
determining all assets in a department D, repeating the steps in the step D until all assets of all departments in a company hierarchical structure are determined, generating an asset card, periodically importing an asset information system into the system through a financial system, realizing integration with the financial system, forming asset card information to be managed by the system, recording design and manufacture, technical process, initial value, equipment primary and secondary, good state, management classification and important management data of single equipment by the asset card, and supporting bar code printing software to directly print and output one-dimensional bar codes and two-dimensional bar codes;
the II comprises the following steps:
after the time T, the sii1 repeats steps S1, S2, S3, S4, S5, S6, S7, and S81, generates asset information IE ' received by all RFID readers after the time T elapses, compares IE ' with IE ' to generate device change information, where the time T may be set to 0.5 day, the device change management record includes information of device internal dial, device deactivation, device seal, seal unseal, device idle, idle activation, deactivation activation, device scrapping, device change selling, and the like, and a company may establish different form styles as needed;
the III specifically comprises the following steps:
SIII1, determining asset list information Id of the department D, and repeating the steps in the step D until the asset information IDs of all departments are determined;
SIII2, comparing IE with the ID, and generating difference information I difference which represents the difference between the information in SI2 and the assets in the asset list, wherein I difference = ID-IE, namely the difference between the statistical list and the actual assets is normal I difference =0, if I difference is not equal to 0, the reason for the difference needs to be investigated; when an enterprise needs to perform inventory, according to department inventory, the system can inquire all assets under the name of the department according to department information, start an RFID reader-writer, acquire RFID electronic tag information in the range of the reader-writer in real time, summarize the acquired information (real inventory data), compare the summarized information with an asset list, and generate an inventory shortage and gain report if the acquired information is different from the asset list; the system can set the functions of basic information input and arrangement, asset label binding, asset checking management, asset change management, establishment of checking tasks, asset checking excess and deficiency records, asset statistics, authority management, system logs, organization architecture and the like, effectively integrates asset account checking and reconciliation, meets the daily management requirement of asset intensive enterprise asset management, and realizes the core function of asset checking;
the IV specifically comprises the following steps:
the siv1. generating an asset detail account including the information of step S81, the device archive management may generate a plurality of device accounts according to the conditions, and may also count the owned quantity and value information of the devices according to different dimensions, specifically including 1. generating a device account: by utilizing rich classification modes and states, the system automatically compiles various equipment accounts, and the data information of the equipment states in the equipment accounts are the current latest data information of the equipment; 2. generating an equipment change ledger: the system automatically counts the change conditions of all equipment, wherein the change comprises the conditions of transferring, sealing, unsealing, idling starting, stopping starting, leasing, scrapping, transferring, inventory shortage, evaluation and the like, and corresponding records are corresponding to the equipment subjected to the change conditions;
siv2. determining the age y and time x of start of use of the asset a, generating predicted expiration time information Z, Z = y-x, repeating the above steps in a until a set Z of predicted expiration time information for all assets is generated;
generating an asset forecast due ledger from information in the SIV 2;
the V specifically comprises the following steps:
SV1, determining the maintenance time, maintenance times and fault types of the assets a, generating the maintenance information of the assets a, and repeating the steps in A until the maintenance information of all the assets is generated;
SV2, according to the information in SV1, generating an asset maintenance detailed account, wherein the maintenance management of the equipment can record maintenance applications mainly comprising fault maintenance, periodic maintenance and state maintenance, uniformly organizing and configuring maintenance resources to comprehensively plan the maintenance, strengthening the opportunity maintenance in slack season, timely feeding back plan execution details, reflecting the resource conditions of maintenance work, working hours, spare parts and cost in real time, and the system constructs comprehensive maintenance management mainly comprising obtaining information of maintenance applications, maintenance plans, maintenance implementation records, statistical analysis, resource standards and the like, and also comprising outsourcing maintenance management, such as equipment annual maintenance, maintenance engineering, single maintenance, external verification and the like, establishing a service level and quality management system for service providers, managing services of outsourcing demand plans, outsourcing bidding contracts, acceptance checks and the like, and managing the use of the expenses of the whole outsourcing; the outsourcing maintenance can comprise functions of outsourcing registration, outsourcing acceptance, outsourcing maintenance inquiry and the like;
the VI specifically comprises the following steps:
SVI1, determining information in IEs of different departments to generate department statistical information according to department classification, generating asset class statistical information according to asset class classification, generating region statistical information according to geographic region position classification, and summarizing and counting equipment, wherein a statistical column can be set, and comprises the number, original value and net value of all equipment, the number, original value and net value of main equipment, and statistical data are all obtained from the latest state of the equipment;
SVI2, according to the information in SVI1, generate the statistical chart, the statistical chart can adopt the pie chart representation, can also adopt the column chart representation, the system supports to carry on statistics and analysis of the data from different angles through the combination condition, through the report design tool, unify the form of the icon, solve the asset analysis report in the prior art in two-dimentional report, nested report and complicated report the deficiency that exists in the aspect of, and increased the data visualization, can be through the report management tool that the land-oriented intelligence provided, process the complicated report on various asset management, can inquire the required data fast and reliably, and greatly improve the developability of the report, the concrete expression is: the system can flexibly set the query conditions and quickly search the records meeting the conditions; supporting fuzzy query, providing a correlation jump function, and supporting jumping to another list or a query result set from a data area of the list; the system can select the required conditions such as indexes, time periods, client types, projects and the like, display the required query data, and can perform operations such as sorting, grouping summation, totaling and the like on the query results; the query tool provides a method for listing query conditions, and a user selects the following conditions to query in combination:
1. direct query: customizing a display column and customizing query conditions (ordinary query condition customization and advanced query condition customization);
2. a correlation query;
3. supporting data multidimensional drilling, unfolding and the like;
4. supporting data filtering (dimension, granularity, index range) and sorting;
5. supporting same-ratio, ring-ratio and accumulative analysis;
6. exporting and printing the query data;
7. any SQL condition can be supported, including SQL sub-queries;
the system can also generate a system asset state statistical analysis function page;
the asset management of enterprises should compare with financial accounts from the perspective of real objects, and the accounts and objects are consistent in correspondence, so that the accounts and objects are consistent in the true sense; enterprises should establish a set of advanced, normative, and optimized management mechanisms; the enterprise assets should be comprehensively visible, automatic updating of information is guaranteed, the enterprise manages the assets more finely, the use and flow conditions of the assets can be monitored in real time, the utilization rate of resources is maximized, automatic updating of the information is guaranteed, the enterprise manages the assets more finely, the use and flow conditions of the assets can be monitored in real time, the utilization rate of the resources is maximized, rapid inventory of the assets is made possible, manpower and material resources for financial inventory at the end of the year are greatly reduced, the error rate of the inventory is also reduced, and the data acquisition way of the enterprise is increased; if the enterprise meets the requirements, the utilization rate of the equipment assets can be improved by 20% -30%, the application for the equipment warranty is increased by 45% -50%, the repeated purchasing cost is reduced by 15% -20%, the equipment loss is reduced by 40% -50%, the time for searching inventory goods is reduced by 50% -91%, and the asset management cost of the enterprise is greatly reduced.
In this embodiment, the operating frequency of the RFID tag is high frequency or ultra high frequency, the RFID tag can emit wireless signal waves, and is a non-contact automatic identification technology, and has the characteristics of high transmission rate, collision prevention, large-batch reading, moving process reading, and the like, the signal frequency band includes low frequency, high frequency, ultra high frequency, and microwave band, the data information stored in the high frequency and ultra high frequency RFID tag is large, the reading distance is long (up to several meters to ten meters), the high-speed moving performance of the adaptive object is good, the RFID tag is generally in a card shape, and the read-write antenna of the RFID reader and the tag antenna of the RFID tag have strong directivity; typical working frequencies of the high-frequency and ultrahigh-frequency RFID are 56MHz, 915MHz, 2450MHz, 5800MHz and the like, the system is supported by a plurality of international standards in the frequency bands, and the working frequency of the RFID electronic tag can be one or more of the frequencies.
In this embodiment, the RFID reader includes a control module, a high-frequency communication module, and a read-write antenna, and the RFID reader reads and writes data transmitted by the RFID electronic tag.
In this embodiment, the RFID tag includes a tag antenna, a logic control unit, a modulator, a demodulator, and a voltage regulator; the tag antenna is used for receiving and transmitting signals; the logic control unit is used for deciphering the signals transmitted by the RFID reader-writer and generating signals returned to the RFID reader-writer; the modulator is used for modulating the signal generated by the logic control unit; the demodulator is used for demodulating signals; the voltage adjusting unit is used for converting the received radio frequency signal into a direct current signal, and the storage unit is used for storing data generated when the RFID electronic tag operates; after the RFID electronic tag enters a radio frequency field emitted by an RFID reader-writer, induced current obtained by an antenna passes through a booster circuit and then serves as a power supply of a chip in the RFID electronic tag, meanwhile, the induced current with information is converted into a digital signal through a radio frequency front-end circuit and sent to a logic control circuit for processing, information needing to be replied is sent out from a memory of the RFID electronic tag, sent back to the radio frequency front-end circuit through the logic control circuit and finally sent back to the reader-writer through the antenna, and the power supply is shown in figure 4; finally, the asset system analyzes the information acquired by the reader-writer in the background into information which can be visually checked and is logical, and then the information is displayed on the main interface of the asset system.
In this embodiment, the query signal is sent in step S6 in such a manner that the RFID reader sends a microwave signal, the RFID electronic tag is activated by the microwave signal, asset information is sent, the RFID reader is connected to a computer, an inventory task list of each department is generated in the system, when inventory is performed, the RFID reader sends a microwave query signal to the RFID electronic tag through the read-write antenna, the RFID electronic tag is activated by microwave energy of the reader, responds to the microwave signal and sends an echo signal carrying stored information, the RFID reader analyzes the echo signal after receiving the echo signal, compares the actual inventory information with the inventory task to generate a corresponding inventory shortage record, and the employee analyzes the cause of profit and loss and makes a remark registration, and then stores an analysis result.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (8)
1. An asset intelligent inventory method based on RFID microwave signals is characterized by comprising an RFID label adhered to an asset, an RFID reader-writer matched with the RFID label and a processor electrically connected with the RFID reader-writer; the method comprises the following steps of,
s1, writing asset information B of an asset a into an RFID electronic tag C, connecting the RFID electronic tag C with the asset a, wherein a set formed by all assets is A, a set formed by all asset information is B, a set formed by all RFID electronic tags is C, and a set formed by all departments is D;
s2, distributing assets a, and arranging the assets a in distributed departments D, wherein a set formed by all the departments is D;
s3, repeating the steps in the step A until all the assets are distributed to a specific department;
s4, setting an RFID reader-writer E in the department d, wherein the set formed by all the RFID reader-writers is E;
s5, repeating the steps in the step D until all departments are provided with RFID readers;
s6, starting all the RFID readers in the step E, and sending query signals in a readable range, wherein the readable range covers the positions of all the assets of the department where the RFID readers are located;
s7, the RFID electronic tag receiving the query signal sends asset information to the RFID reader-writer, and the RFID reader-writer transmits the received asset information to the processor;
and S8, the processor collects and analyzes the information.
2. The intelligent asset inventory method based on RFID microwave signals as claimed in claim 1, wherein: the asset information b in the step S1 includes an asset name, an asset class, an asset serial number, a usage department, an asset status, and a current date, and the asset information of different assets is different.
3. The intelligent asset inventory method based on RFID microwave signals as claimed in claim 2, wherein: the step S6 further includes setting an authority limit of the RFID reader, where the RFID reader of a specific department is restricted by the authority limit of the RFID reader to only receive asset information sent by the RFID tag connected to the asset in the department.
4. The intelligent asset inventory method based on RFID microwave signals as claimed in claim 1, wherein the step S8 of analyzing and processing the collected information specifically includes the steps of:
s81, determining asset information Ie received by a specific RFID reader-writer E, and repeating the steps in E until all the asset information IE received by the RFID reader-writer is determined;
s82, analyzing and processing the asset information;
the step S82 specifically includes:
I. generating an asset card;
II, managing equipment change;
III, asset inventory management;
IV, equipment archive management statistics;
v, asset maintenance management;
VI, asset statistical analysis;
the I specifically comprises the following steps:
determining the position of the company hierarchical structure and the D departments in the company hierarchical structure, and repeating the steps in the step D until the positions of all the departments in the company hierarchical structure are determined;
s2, determining all assets in the department D, and repeating the steps in the step D until all the assets of all the departments in the company hierarchical structure are determined, and generating an asset card;
the II comprises the following steps:
after the time T, repeating steps S1, S2, S3, S4, S5, S6, S7 and S81 to generate asset information IE ' received by all RFID readers and writers after the time T elapses, and comparing IE with IE ' to generate device change information, wherein the change information = IE ' -IE;
the III specifically comprises the following steps:
SIII1, determining asset list information Id of the department D, and repeating the steps in the step D until the asset information IDs of all departments are determined;
siii2. compare IE with ID, generate difference information, iidiff, representing the information in SI2 and the asset difference in the asset manifest, iidiff = ID-IE;
the IV specifically comprises the following steps:
SIV1, generating an asset detail account comprising the information of the step S81;
siv2. determining the age y and time x of start of use of the asset a, generating predicted expiration time information Z, Z = y-x, repeating the above steps in a until a set Z of predicted expiration time information for all assets is generated;
generating an asset forecast due ledger from information in the SIV 2;
the V specifically comprises the following steps:
SV1, determining the maintenance time, maintenance times and fault types of the assets a, generating the maintenance information of the assets a, and repeating the steps in A until the maintenance information of all the assets is generated;
SV2, generating asset maintenance detail account according to the information in SV 1;
the VI specifically comprises the following steps:
SVI1, determining information in IEs of different departments to generate department statistical information according to department classification, generating asset class statistical information according to asset class classification, and generating region statistical information according to geographic region position classification;
and SVI2. generating a statistical map according to the information in the SVI1.
5. The intelligent asset inventory method based on RFID microwave signals as claimed in claim 4, wherein: the working frequency of the RFID electronic tag is high frequency or ultrahigh frequency.
6. The intelligent asset inventory method based on RFID microwave signals as claimed in claim 5, wherein: the RFID reader-writer comprises a control module, a high-frequency communication module and a read-write antenna.
7. The intelligent asset inventory method based on RFID microwave signals as claimed in claim 6, wherein: the RFID electronic tag comprises a tag antenna, a logic control unit, a modulator, a demodulator and a voltage regulator; the tag antenna is used for receiving and transmitting signals; the logic control unit is used for deciphering the signals transmitted by the RFID reader-writer and generating signals returned to the RFID reader-writer; the modulator is used for modulating the signal generated by the logic control unit; the demodulator is used for demodulating signals; the voltage adjusting unit is used for converting the received radio frequency signal into a direct current signal, and the storage unit is used for storing data generated when the RFID electronic tag operates.
8. The intelligent asset inventory method based on RFID microwave signals as claimed in claim 7, wherein: the query signal is sent in step S6 in such a way that the RFID reader sends a microwave signal.
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