CN110147860A - A kind of prefabricated components management system based on RFID and block chain - Google Patents
A kind of prefabricated components management system based on RFID and block chain Download PDFInfo
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- CN110147860A CN110147860A CN201910415933.XA CN201910415933A CN110147860A CN 110147860 A CN110147860 A CN 110147860A CN 201910415933 A CN201910415933 A CN 201910415933A CN 110147860 A CN110147860 A CN 110147860A
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- G—PHYSICS
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- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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Abstract
The prefabricated components management system based on RFID and block chain that the invention discloses a kind of.The system is made of front-end collection system, background management system, block chain background system, inquiry system this four systems of tracing to the source, and is related to each stages such as prefabricated components production, transport, inventory, construction, O&M, is the closed-loop system of an entirety.Each stage is uploaded to information in database and block chain by scanning RFID label tag.Once going wrong, project manager scans the two-dimensional code obtains complete believable key message from block chain, differentiates responsibility in time, improves construction efficiency.
Description
Technical field
The invention belongs to block chain technical field, internet of things field, building industrialization fields, data security arts.
Background technique
Current China carries out the process of urbanization, building trade with the speed of superelevation and plays in economic development
The role of pillar industry.Assembled architecture carries out assembling this side on-site by the component of prefabricated high quality in the factory
Formula improves rate of progress of the construction, is the industrialized development trend of future architecture.But prefabricated components kind involved in building course
Class is various, and for information dispersion in different participant hands, intermediate links are numerous, lacks effective regulatory measure, each component
Information is difficult to collect in time, achieves, should not search.Once going wrong, later period inquiry will be unfavorable for and called to account, construction is also led to
Efficiency reduces, and holds to entire engineering construction progress and management difficulty greatly increases.
Irregular about the management system of building trade at present, some records the process of circulation using bar code, but
It is one-dimension code there are transreplication and nonuniqueness, is easy to be copied, retrospect effect is caused to substantially reduce.Some relates only to it
One or two of link such as middle production or construction, does not form whole integrated system, can not form closed loop, causes not having really
Retrospect effect.Once going wrong, each side, which shifts responsibility onto others, disputes over trifles, it is difficult to effectively differentiation responsibility.Some traceability management systems will be prefabricated
Data during component production flow are only only stored in database by RFID reader.But database is not complete
It can be trusted, key message may be distorted by power user, and it is all true and reliable not can guarantee all information.
Summary of the invention
The prefabricated components management system based on RFID and block chain that the present invention provides a kind of, the present invention mainly utilize block
Chain technology solves the safety problem of data storage.Presently, there are the transreplication problem of the marks such as one-dimension code, nonuniqueness problem,
Whole system can not form the problem of closed loop, and prefabricated components, which not can guarantee, to be stored in during production flow in all of database
The problem of recording information truth reliably and not being tampered.
To solve the above-mentioned problems, this system uses following technical scheme:
The coding rule of prefabricated components in this management system meets GS1 international code specification, does not have the whole world uniquely and not
Revisable ID.RFID label tag is the physical support of this unique ID, and prefabricated components can be identified and read in the world
It writes, solves the problems, such as one-dimension code transreplication and nonuniqueness.This management system be related to production, transport, inventory, construction,
The circulation information of O&M etc., prefabricated components can be recorded by whole process, form whole integrated system, tracing information is in any section
Point is recordable inquiry, plays really management and retrospect effect, solves the problems, such as that closed loop can not be formed.Block chain skill
The characteristic for the distributed account book that can not be distorted He can not forge of art guaranteed in a manner of cryptography provides for this management system
Presently the most reliable safety and confidence level.Using block chain technology, during the production flow of each prefabricated component,
All background management system is written by RFID reader in data, and key message is stored in block chain, so that key message can not be usurped
Change, data are true and reliable, solve problem of data safety.
A kind of prefabricated components management system based on RFID and block chain, this management system include: front-end collection system, after
Platform management system, block chain background system and inquiry system of tracing to the source further include handheld terminal, and handheld terminal is for identifying prefabricated structure
The RFID label tag and two dimensional code of part, for identification handheld RFID of RFID label tag or fixed RFID reader.
This management system one is divided into three-tier architecture, respectively data collection layer, processing accumulation layer and traces to the source and inquires layer.Its
Data of prefabricated components durings production, transport, inventory, construction, O&M etc. are passed through scanning RFID by middle data collection system
Label acquisition, is the prefabricated components data acquisition front of entire management system.Handling accumulation layer includes background management system and area
Block chain background system.Background management system includes user management subsystem, production management subsystem, transportation management subsystem, library
Deposit management subsystem, construction management subsystem, operation management subsystem and personal management subsystem.Background management system is for connecing
The collected data of prefabricated components data acquisition front are received and handled, data are stored in database, and critical data is passed to
Block chain background system.Block chain background system can not distort characteristic using block chain, by background management system processing backstage
The data passed over are saved in block chain, for storing the key message of tracing to the source of prefabricated components.Tracing to the source and inquiring layer is person liable
Or project manager passes through the information of tracing to the source for scanning the two-dimensional code the whole circulation processes for checking prefabricated components.
The building and operation of the management system that the present invention realizes the following steps are included:
Step 1: designer is that each component designs the unique ID for meeting GS1 International Standard, and phase is made
The RFID label tag and two dimensional code answered, each responsible person in the stages such as production, transport, inventory, construction, O&M apply account for stepping on
Record front-end collection system and inquiry system of tracing to the source；
Step 2: each responsible person in the stages such as production, transport, inventory, construction, O&M is scanned using RFID reader
RFID label tag logs in front-end collection system, acquires the key message in each stage, main body unit, responsible person including the stage,
Time, photo, inspection result etc.；
Step 3: the collected data in the stages such as production, transport, inventory, construction, O&M, by mobile network,
WiFi etc. is passed to background management system, and data can be deposited into database using the subsystems of MVC framework mode, prevents
It distorts, the data such as supervision can synchronize and pass to block chain background system by force；
Step 4: block chain background system can receive background management system and synchronize anti-tamper, the letter supervised by force passed over
Breath, and " transaction " on a privately owned chain is initiated, with the digging mine of node, the data in " transaction " can be stored into block chain.It deposits
After storage, block chain can return to a unique block chain address and be stored in the database by background management system；
Step 5: production, transport, inventory, in construction each stage, the person liable or project manager of latter stage
It can be accessed by mobile scanning terminal two dimensional code and trace to the source and inquire layer, traced to the source and inquire layer and parse prefabricated components in two dimensional code
RFID value, background management system from taking-up data in database and pass through block chain background system from block chain by RFID value
Take out critical data.The critical data taken out, which uniformly returns to trace to the source, inquires layer, and as tracing to the source, information is referred to；
Step 6: the O&M stage inputs http request and encloses the access of RFID label tag occurrence and traces to the source in browser address bar
Inquiry system.All information of the last stage of the prefabricated components are equally inquired from inquiry system of tracing to the source.
The mobile terminal includes smart phone or pad.
Compared with prior art, the present invention provides a kind of prefabricated components management system based on RFID and block chain,
RFID label tag unique identification prefabricated components solve the transreplication and nonuniqueness of one-dimension code.This management system is related to pre-
Component production processed, transport, inventory, construction, O&M overall process, form the closed loop of prefabricated components O&M from produce to constructing,
Management system covers data collection layer, processing accumulation layer, inquires layer of tracing to the source, and forms whole integrated system framework.By prefabricated structure
Some strong supervision during part production flow, anti-tamper key message be stored in block chain, utilizes can not distorting for block chain
Characteristic, it is therefore prevented that information is tampered during production flow.Once going wrong, when needing inquiry to call to account, manager is logical
Overscanning two dimensional code can directly inquire the information of tracing to the source during prefabricated components circulation.Production flow process can be cleared in time
In which link there are the problem of, determine the main body responsibility of the link, and handle in time.
Detailed description of the invention
Fig. 1 is this management system composition block diagram figure.
Fig. 2 is the functional frame composition of this management system.
Fig. 3 is the logical architecture figure of this management system.
Fig. 4 is RFID and two dimensional code insertion figure.
Fig. 5 is MVC architecture diagram.
Fig. 6 is the system block diagram of this management system.
Specific embodiment
The management system that 1-5 realizes the present invention with reference to the accompanying drawing is described further:
Step 1: design ID is made corresponding RF ID and two dimensional code, applies for account；
Step 1.1: in the design phase, designer designs the BIM model of building, corresponding drawing at production.And it is
The global unique and not revisable ID of the design of each component required for the building, ID includes component number, designing unit, component
The information such as title, element type.The coding of ID uses international EAN/UCC-128 coding rule, and is to meet the world GS1
Standard criterion.Corresponding RFID label tag and two dimensional code are made after the completion of coding；
Step 1.2:RFID label is the physical quantity carrier of this ID, unique identification prefabricated components.And RFID label tag is
Active, label itself possesses power supply, can actively issue radio wave, waits reader response.Two dimensional code itself is one
Http request address contains FRID label information in address；
Step 1.3: the person liable in each stage needs to apply for account, project manager from personal management subsystem in advance
Choose whether the application by the account.After account application success, for logging in front-end collection system and inquiry system of tracing to the source.
There is no account that can not be operated；
Step 2: the responsible person in each stage acquires the key message in the stage；
Step 2.1: production phase, producers carry out the reserved pre- of water power and door and window according to the requirement of component design drawing
It buries, then pours mixed mud, RFID and two dimensional code are encapsulated into prefabricated components.Fig. 4 is the embedded mode of RFID and two dimensional code, will
The hard box of plastics is embedded in prefabricated components, keeps hard box outer surfac and prefabricated components surface well-balanced smooth, RFID label tag is put into box
In son, it is attached to surface after two dimensional code plastic packaging, and tightens the screw of box surrounding with screwdriver.Production person liable passes through hand-held
RFID reader scans RFID label tag, login account after scanning successfully, and acquires the information in production process, including connection side
Formula, strength grade of concrete, reinforcing bar grade, production unit, date of manufacture, size, production person liable, production process photo, life
The information such as production personnel photo, prefabricated components factory photo；
Step 2.2: in the haulage stage, obligation to carry people, which is scanned, acquires traffic unit, transport odd numbers, fortune after RFID label tag logs in
The data such as defeated person liable, transport license plate number, haulage vehicle photo, transport driver's photo, transport cargo photo.Wherein prefabricated components
The fixed reader of RFID at gate factory can acquire vehicle and sail out of the time of factory as transport initial time.And it can be with
In conjunction with the geographical location of GPS gathers haulage vehicle；
Step 2.3: inventory stage, when haulage vehicle passes through the gate of inventory's workshop, fixed reader will be read
RFID label tag, and current time is acquired as the transport end time.Inventory person liable tests prefabricated components, unqualified
Product return factory, examine qualified prefabricated components to unload and be placed on storehouse.And it is acquired after being logged in by hand-held RFID read-write device
The letters such as mode, inventory person liable, inventory goods yard, entry time, storage photo, storehouse number, are stacked at inspection result by stock keeping unit
Breath.When outbound, the fixation reader of workshop will collect the outbound time of prefabricated components；
Step 2.4: the construction stage lifts situation in conjunction with the site operation of prefabricated components, and construction person liable scans RFID mark
Label log in front-end collection system, when acquiring unit in charge of construction, form of construction work, installation position, construction personnel, construction person liable, construction
Between, work progress photo, construction complete photo, the information such as construction personnel's photo；
Step 2.5: O&M stage, at regular intervals, the operation maintenance personnel prefabricated components important to building interior are examined
It surveys, and front-end collection system, acquisition testing unit, detection time, detection position, O&M is logged in by hand-held RFID read-write device
The information such as person liable, detection photo, testing result；
Step 3: background management system by each phase acquisition to data be deposited into database, wherein key message transmit
Give block chain background system；
Step 3.1: background management system uses the Frame Design mode of MVC, and model layer (Model) is responsible for depositing for data
It takes, view layer (View) is responsible for the displaying of data, and control layer (Controller) is responsible for communication model layer and view layer, such as Fig. 5
It is shown.After background management system receives request, control layer requests communication model layer storing data, and model layer calls bottom side
Data are stored in database by method, and after model layer has been handled, control layer calls the view of the view layer return to go to show the return
Corresponding data；
Step 3.2: the data that each phase acquisition such as production, transport, inventory, construction, O&M arrives by mobile network or
WiFi is uploaded to after background management system, is handled respectively by corresponding sub- management system, using each of MVC framework mode
Collected data can be deposited into database by a subsystem, wherein the data such as anti-tamper, strong supervision can synchronize and pass to area
Block chain background system.These data include the person liable in each stage, the time, main body unit, photo server address path,
The key messages such as position, testing result, installation position.Each phase acquisition to photo can be uploaded to by background management system
Server, the server address path of photo, which will synchronize, passes to block chain background system；
Step 4: block chain background system is built using Web3.js and Node.js privately owned based on ether mill platform
Chain, has multiple persons liable to acquire the information in the stage in each stage, multiple persons liable in the stage are added with the identity of node
Into chain, the phase acquisition to data can be received and processed by background management system, the anti-tamper, information supervised by force therein
It can synchronize to be transmitted through and, node acquires " transaction " automatically initiated on a privately owned chain after data and " hands over the digging mine of node
Anti-tamper, strong supervision data in easily " can be stored in block, and data are just stored in block chain.After storage, block chain meeting
A unique block chain address is returned to, which can be returned to background management system by block chain background system.Back-stage management
The block chain address storage that system returns to block chain background system is in the database；
Step 5: each stage person liable accesses inquiry system of tracing to the source and obtains critical data, and as tracing to the source, information is joined
It examines；
Step 5.1: inquiry system of tracing to the source is the webpage of a web terminal, docks background management system and block chain backstage is
System, sends that http request is accessible to be arrived by mobile scanning terminal two dimensional code or browser.When scanning the two-dimensional code, traces to the source and look into
Inquiry system can parse the address path in two dimensional code, extract RFID label tag, and the label is returned to background management system.From the background
Management system takes out the corresponding information for being stored in database of the label, and inquires and obtain the block chain address of the label, backstage
Block chain address is sent block chain background system by management system, and block chain background system is inquired after taking block chain address
Background management system is returned to block, and by the key message taking-up in block.Background management system is by the information and data
Information comparison in library, if it is inconsistent, thinking that database is modified, it will return to web terminal warning message: " database
Modified ", and return to the key message stored in block chain.If consistent, then it is assumed that the key message in database is that do not have
It is modified, then will return to the prefabricated components includes all information such as photo；
Step 5.2: production, transport, inventory, in construction (not including O&M) each stage, the responsibility of latter stage
People or project manager can check the prefabricated components with the key message of last stage.By using handheld terminal (mobile phone or
Pad it) scans the two-dimensional code and carries out inquiry of tracing to the source, corresponding two dimensional code is a network address, jumps to the web terminal page, and inquiry needs every time
Want register.Once it was found that prefabricated components are there are problem, perhaps key message is not right or illogical, can be immediately
Toward inquiry of then tracing to the source on last stage, where finding problem until link, so that it is determined that the main body responsibility in which stage,
And it handles in time；
Step 5.3: when person liable, which trace to the source, to be inquired, if inquiry system of tracing to the source does not return to " database is modified "
When, it is believed that database is consistent with the key message that block chain stores, then the information of prefabricated components is credible, can be used as letter of tracing to the source
Breath is referred to.If inquiry system of tracing to the source returns to " database is modified ", database data is insincere, then only focusing on area
The key message that block chain background system returns, and only referred to this information as information of tracing to the source, the letter that database is tampered
Breath is also required to that timely coupled system administrator is further to be handled；
Step 6: during O&M, the two dimensional code of prefabricated components is buried by wall, can only be swept using RFID reader
RFID label tag is retouched, http request is inputted in browser address bar and incidentally RFID label tag occurrence accesses later.It logs in
Later, then same accessible to inquiry system of tracing to the source, inquire all information of the last stage of the prefabricated components.
Compared with prior art, the invention has the following advantages that
The present invention carrys out unique identification prefabricated components using RFID label tag, solves one-dimension code transreplication and nonuniqueness.
Wherein RFID label tag can work in inclement weather, without contacting the information that can be read automatically inside RFID label tag, have
Source RFID label tag is incited somebody to action so that the label service life greatly prolongs.The present invention relates to each stage of prefabricated components circulation, formation is closed
Ring.Each stage by scanning RFID label tag, the information of component is timely collected and is achieved, convenient for each side information sharing with
Exchange.Wherein strong supervision, anti-tamper key message are stored in block chain.Once doing over again during circulation, or it is related to
To building call to account problem, block chain will provide complete believable information of tracing to the source for project manager.To improve construction effect
Rate, differentiates building responsibility, and specification building trade provides theories integration and technical support.
Claims (8)
1. a kind of prefabricated components management system based on RFID and block chain, it is characterised in that: this management system includes that front end is adopted
Collecting system, background management system, block chain background system and inquiry system of tracing to the source, further include handheld terminal, and handheld terminal is used for
The RFID label tag and two dimensional code of prefabricated components are identified, for identification the handheld RFID of RFID label tag or fixed RFID read-write
Device；
This management system one is divided into three-tier architecture, respectively data collection layer, processing accumulation layer and traces to the source and inquires layer；Wherein count
Data of prefabricated components during production, transport, inventory, construction, O&M are adopted by scanning RFID label tag according to acquisition system
Collection, is the prefabricated components data acquisition front of entire management system；After processing accumulation layer includes background management system and block chain
Platform system；Background management system includes user management subsystem, production management subsystem, transportation management subsystem, stock control
Subsystem, construction management subsystem, operation management subsystem and personal management subsystem；Background management system is for receiving and locating
The collected data of prefabricated components data acquisition front are managed, data are stored in database, and critical data is passed to block chain
Background system；Block chain background system can not distort characteristic using block chain, and background management system processing backstage was transmitted
The data come are saved in block chain, for storing the key message of tracing to the source of prefabricated components；Tracing to the source and inquiring layer is person liable or engineering
Manager passes through the information of tracing to the source for scanning the two-dimensional code the whole circulation processes for checking prefabricated components.
2. a kind of prefabricated components management system based on RFID and block chain according to claim 1, it is characterised in that: pipe
The building and operation of reason system include the following steps,
Step 1: designer is that each component designs the unique ID for meeting GS1 International Standard, and is made corresponding
RFID label tag and two dimensional code, production, transport, inventory, construction, each responsible person in O&M stage apply account for logging in front end
Acquisition system and inquiry system of tracing to the source；
Step 2: production, transport, inventory, construction, each responsible person in O&M stage scan RFID label tag using RFID reader,
Front-end collection system is logged in, acquires the key message in each stage, the main body unit including the stage, responsible person, time, photograph
Piece, inspection result；
Step 3: incoming by mobile network, WiFi in production, transport, inventory, construction, collected data in the O&M stage
To background management system, data can be deposited into database using the subsystems of MVC framework mode, anti-tamper, strong prison
Pipe data, which can synchronize, passes to block chain background system；
Step 4: block chain background system can receive background management system and synchronize anti-tamper, the information supervised by force passed over,
And " transaction " on a privately owned chain is initiated, with the digging mine of node, the data in " transaction " can be stored into block chain；It has stored
Bi Hou, block chain can return to a unique block chain address and be stored in the database by background management system；
Step 5: production, transport, inventory, in construction each stage, the person liable or project manager of latter stage can be with
It traces to the source by the access of mobile scanning terminal two dimensional code and inquires layer, trace to the source and inquire layer and parse prefabricated components RFID in two dimensional code
Value, background management system take out from block chain by RFID value from taking-up data in database and by block chain background system
Critical data；The critical data taken out, which uniformly returns to trace to the source, inquires layer, and as tracing to the source, information is referred to；
Step 6: the O&M stage inputs http request and enclose RFID label tag occurrence in browser address bar accesses inquiry of tracing to the source
System；All information of the last stage of the prefabricated components are equally inquired from inquiry system of tracing to the source.
3. a kind of prefabricated components management system based on RFID and block chain according to claim 2, it is characterised in that: institute
Stating mobile terminal includes smart phone or pad.
4. a kind of prefabricated components management system based on RFID and block chain according to claim 2, it is characterised in that: step
Rapid 1.1: in the design phase, designer designs the BIM model of building, corresponding drawing at production；And for needed for the building
Want each component design whole world unique and not revisable ID, ID includes component number, designing unit, component name, component
Type information；The coding of ID uses international EAN/UCC-128 coding rule, and is to meet GS1 International Standard；It compiles
Corresponding RFID label tag and two dimensional code are made after the completion of code；
Step 1.2:RFID label is the physical quantity carrier of this ID, unique identification prefabricated components；And RFID label tag is active
, label itself possesses power supply, radio wave can be actively issued, to reader response；Two dimensional code itself is that a http is asked
Address is asked, contains FRID label information in address；
Step 1.3: the person liable in each stage needs to apply from personal management subsystem in advance account, project manager's selection
Whether the application of the account is passed through；After account application success, for logging in front-end collection system and inquiry system of tracing to the source；No
Account can not be operated.
5. a kind of prefabricated components management system based on RFID and block chain according to claim 2, it is characterised in that: step
Rapid 2: the responsible person in each stage acquires the key message in the stage；
Step 2.1: production phase, producers carry out the set aside pre-embedded of water power and door and window according to the requirement of component design drawing,
Then mixed mud is poured, RFID and two dimensional code are encapsulated into prefabricated components；Fig. 4 is the embedded mode of RFID and two dimensional code, will be moulded
Expect that hard box is embedded in prefabricated components, keeps hard box outer surfac and prefabricated components surface well-balanced smooth, RFID label tag is put into box
In, surface is attached to after two dimensional code plastic packaging, and the screw of box surrounding is tightened with screwdriver；Production person liable passes through handheld RFID
Reader scans RFID label tag, login account after scan successfully, and acquire the information in production process, including connection type, mixes
Solidifying soil intensity level, reinforcing bar grade, production unit, date of manufacture, size, production person liable, production process photo, producers are shone
Piece, prefabricated components factory photographic intelligence；
Step 2.2: in the haulage stage, obligation to carry people, which is scanned, acquires traffic unit, transport odd numbers, transport duty after RFID label tag logs in
It lets people, transport license plate number, haulage vehicle photo, transport driver's photo, transport cargo picture data；Wherein prefabricated components factory is big
The fixed reader of RFID at door can acquire vehicle and sail out of the time of factory as transport initial time；And it can be combined with
The geographical location of GPS gathers haulage vehicle；
Step 2.3: inventory stage, when haulage vehicle passes through the gate of inventory's workshop, fixed reader will read RFID mark
Label, and current time is acquired as the transport end time；Inventory person liable tests prefabricated components, underproof product
Factory is returned, examines qualified prefabricated components to unload and is placed on storehouse；And stores list is acquired after logging in by hand-held RFID read-write device
Mode, inventory person liable, inventory goods yard, entry time, storage photographic intelligence, storehouse number, are stacked at inspection result in position；Outbound
When, the fixation reader of workshop will collect the outbound time of prefabricated components；
Step 2.4: the construction stage lifts situation in conjunction with the site operation of prefabricated components, and construction person liable is scanned RFID label tag and stepped on
Front-end collection system is recorded, acquisition unit in charge of construction, installation position, construction personnel, construction person liable, the construction time, applies form of construction work
Photo, construction personnel's photographic intelligence are completed in work process photo, construction；
Step 2.5: O&M stage, at regular intervals, the operation maintenance personnel prefabricated components important to building interior are detected, and
Front-end collection system, acquisition testing unit, detection time, detection position, O&M responsibility are logged in by hand-held RFID read-write device
People, detection photo, testing result information.
6. a kind of prefabricated components management system based on RFID and block chain according to claim 2, it is characterised in that: step
Rapid 3: background management system by each phase acquisition to data be deposited into database, after wherein key message passes to block chain
Platform system；
Step 3.1: background management system uses the Frame Design mode of MVC, and model layer is responsible for the access of data, and view layer is responsible for
The displaying of data, control layer are responsible for communication model layer and view layer；After background management system receives request, control layer request
Communication model layer storing data, model layer calls underlay approach that data are stored in database, after model layer has been handled, control layer
The view of the view layer return is called to go to show the corresponding data of the return；
Step 3.2: production, transport, inventory, construction, each phase acquisition of O&M to data pass through on mobile network or WiFi
It passes to after background management system, is handled respectively by corresponding sub- management system, using each subsystem of MVC framework mode
Collected data can be deposited into database by system, wherein anti-tamper, strong supervision data, which can synchronize, passes to block chain backstage
System；These data include the person liable in each stage, time, main body unit, the server address path of photo, position, inspection
Survey result, installation position key message；Each phase acquisition to photo can be uploaded onto the server by background management system, shine
The server address path of piece, which will synchronize, passes to block chain background system.
7. a kind of prefabricated components management system based on RFID and block chain according to claim 2, it is characterised in that: step
Rapid 4: block chain background system is the privately owned chain built using Web3.js and Node.js based on ether mill platform, each stage
In there are multiple persons liable to acquire the stage information, multiple persons liable in the stage are added in chain with the identity of node, the rank
The collected data of section can be received and processed by background management system, and information that is anti-tamper, supervising by force therein, which can synchronize, to be transmitted through
Come, node acquires " transaction " automatically initiated after data on a privately owned chain, and with the digging mine of node, anti-in " transaction " is usurped
Change, by force supervision data can be stored in block, data are just stored in block chain；After storage, block chain can return to one only
The address can be returned to background management system by one block chain address, block chain background system；Background management system is by block
The block chain address storage that chain background system returns is in the database.
8. a kind of prefabricated components management system based on RFID and block chain according to claim 2, it is characterised in that: step
Rapid 5: each stage person liable accesses inquiry system of tracing to the source and obtains critical data, and as tracing to the source, information is referred to；
Step 5.1: inquiry system of tracing to the source is the webpage of a web terminal, docks background management system and block chain background system, is led to
It crosses mobile scanning terminal two dimensional code or browser and sends that http request is accessible to be arrived；When scanning the two-dimensional code, trace to the source inquiry system
System can parse the address path in two dimensional code, extract RFID label tag, and the label is returned to background management system；Back-stage management
System takes out the corresponding information for being stored in database of the label, and inquires and obtain the block chain address of the label, back-stage management
Block chain address is sent block chain background system by system, and inquiry obtains area after block chain background system takes block chain address
Block, and the key message taking-up in block is returned into background management system；Background management system will be in the information and database
Information comparison, if it is inconsistent, thinking that database is modified, it will return to web terminal warning message: " database is repaired
Change ", and return to the key message stored in block chain；If consistent, then it is assumed that the key message in database is not repaired
Change, then will return to the prefabricated components includes all information of photo；
Step 5.2: production, transport, inventory, in construction each stage, the person liable or project manager of latter stage can
To check the prefabricated components with the key message of last stage；It is scanned the two-dimensional code by using handheld terminal and carries out inquiry of tracing to the source, two
It is a network address that it is corresponding, which to tie up code, jumps to the web terminal page, and inquiry needs register every time；Once it was found that prefabricated components are deposited
In problem, perhaps key message is not right or illogical, can be immediately toward inquiry of then tracing to the source on last stage, Zhi Daocha
Until link where problem, so that it is determined that the main body responsibility in which stage, and handle in time；
Step 5.3: when person liable, which trace to the source, to be inquired, if inquiry system of tracing to the source does not return to " database is modified ",
Think that database is consistent with the key message that block chain stores, then the information of prefabricated components is credible, can be used as information of tracing to the source
It is referred to；If inquiry system of tracing to the source returns to " database is modified ", database data is insincere, then only focusing on block
The key message that chain background system returns, and only referred to this information as information of tracing to the source, the information that database is tampered
It is also required to that timely coupled system administrator is further to be handled.
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