CN103997445A - Method and system for controlling office internet of things based on RFID - Google Patents
Method and system for controlling office internet of things based on RFID Download PDFInfo
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- CN103997445A CN103997445A CN201410206344.8A CN201410206344A CN103997445A CN 103997445 A CN103997445 A CN 103997445A CN 201410206344 A CN201410206344 A CN 201410206344A CN 103997445 A CN103997445 A CN 103997445A
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Abstract
The invention relates to a method and system for the office internet of things, in particular to a method and system for controlling the office internet of things based on RFID, and belongs to the field of control over the internet of things. Through process planning of the internet of things, the processing process of mass data in the internet of things is effectively managed, and an internet of things system is made to efficiently run; meanwhile, an object inspection and equipment control method for the internet of things is simplified through a mapping table, the data processing amount is reduced, and through an improved hash algorithm, the phenomenon of conflict probably existing in the reading process of object RFID tags in the internet of things system is effectively avoided.
Description
Technical field
The present invention relates to a kind of office Internet of Things control method and system based on RFID, belong to Internet of Things control field, relate in particular to a kind of office Internet of Things method and system.
Background technology
In present stage, RFID technology and technology of Internet of things are merged, become a development trend, yet, if only join in Internet of Things and use RFID technology as simple parts, the effect of itself can not be reached, and conflict and the mistake of Internet of things system in control may be caused.
And in present stage, how by RFID technique to high-efficiency be applied in Internet of things system, and make its performance effect fully, become the important research direction of pendulum in face of technical staff.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, based on this, the present invention proposes a kind of office Internet of Things control method and system based on RFID, and realized the fusion of RFID technology and Internet of Things is used.
The following technical scheme of the concrete employing of the present invention:
Described system comprises: terminal, and for user, carry out authentication, and article in Internet of Things are realized inquiry and equipment in Internet of Things is carried out to Long-distance Control; Described terminal can be individual digital equipment, mobile phone, computer; Described terminal is set up and is connected with Internet of things system in wired or wireless mode.
Central controller module, with server in system, article, end message mapping table generation module, controllable device address generation module, the coupling of RFID flow chart of data processing control module, for carry out terminal authentication, processing control information, inquiry Item Information, be encrypted computing and send alarm signal;
Server, for realizing and the connecting of terminal, and stores the address information of internet of things equipment, in authentication, by rear, sets up connecting of terminal and internet of things equipment;
Article, end message mapping table generation module, this module is used for setting up article, end message mapping table, and wherein Item Information mapping table is < Item Title, item code, involved code, comprises code >, and stores incidence relation; End message mapping table is < terminal code, authority levels >, the identification code that wherein terminal code is each user terminal; Item Title in mapping table, item code, involved code, comprises code and with identical binary data figure place, represents respectively, terminal code, authority levels represents with identical binary data figure place respectively;
Controllable device address generation module, for mapping relations are set up in the controllable device identification code of the Administrative Area address corresponding with it: in the time of in equipment access office Internet of Things, central controller reads the entrained product identification code of this equipment self, 5 bit digital information after product identification code are stored as the address information of this equipment, and be sent to server backup;
RFID flow chart of data processing control module, for the flow chart of data processing of reasonable arrangement system, guarantees the efficiency of data processing, generates the flow chart of data processing of tree structure, wherein the actual process occurring in each leaf node representative data processing; The order of each leaf node data-driven being processed to real process sorts, determine in each leaf node data handling procedure the upper limit number of process that can parallel processing, wherein, each leaf node at least comprises a process, obtains the complete tree structure figure that comprises data process method order;
Constraints module, for according to the item code of article mapping table, involved code, comprise the authority levels in code and end message mapping table, determine the constraints of RFID flow chart of data processing;
Preferably, the password that described middle terminal code is arranged by user and the hardware identifier code of terminal handler, obtain by cryptographic algorithm.
Preferably, the constraints of described constraints module is: when article inclusion relation does not meet mapping table information, send warning; What user was undertaken by terminal controls while exceeding authority levels, sends warning.
In addition, the invention allows for a kind of office Internet of Things control method based on RFID, the concrete steps of its realization are as follows:
(1) set up article, end message mapping table, wherein Item Information mapping table is < Item Title, item code, involved code, comprise code >, and stores incidence relation, the item code that wherein involved coded representation comprises these article, comprise the code that coded representation is included in the article in these article, every article are by the information in RFID label record mapping table fixed thereon; End message mapping table is < terminal code, authority levels >, the identification code that wherein terminal code is each user terminal, between controller address in each identification code and Internet of things system, set up mapping relations, authority levels identifies the controlled scope of this terminal to Internet of things system;
Item Title in mapping table, item code, involved code, comprises code and with identical binary data figure place, represents respectively, terminal code, authority levels represents with identical binary data figure place respectively;
Mapping relations are set up in the controllable device identification code address corresponding with it in Administrative Area: in the time of in equipment access office Internet of Things, central controller reads the entrained product identification code of this equipment self, 5 bit digital information after product identification code are stored as the address information of this equipment, and be sent to server backup;
(2) the RFID flow chart of data processing of generation system, obtains the flow chart of data processing of tree structure, wherein each leaf node representative data actual process occurring in processing; The order of each leaf node data-driven being processed to real process sorts, determine in each leaf node data handling procedure the upper limit number of process that can parallel processing, can concurrent process number being set to upper limit number and subtracting 1 of leaf node, if leaf node process upper limit number is 1, be set to 1, obtain the complete tree structure figure that comprises data process method order;
(3) according to the item code in article mapping table, involved code, comprise the authority levels in code and end message mapping table, determine the constraints of RFID flow chart of data processing; This constraints is: when article inclusion relation does not meet mapping table information, send warning; What user was undertaken by terminal controls while exceeding authority levels, sends warning.The foundation of this constraints, for the flow process problem that illegal operation and the system self of system emerged in operation may occur has been carried out operative constraint, and sends different alarm signals, so that user is carried out to corresponding prompting.
(4) when user connects by terminal and the foundation of office Internet of things system, terminal sends to central controller by the hardware identifier code of terminal handler automatically, central controller obtains the terminal code of having stored by this identification code, whether the terminal code that authentication of users terminal generates after user inputs password is identical with the terminal code of having stored, and realizes terminal identity authentication; If authentication is passed through, central processing unit reads corresponding authority levels and receives the control command that user sends by terminal, otherwise sends warning message;
(5) receive user by the instruction of terminal input inquiry article, central controller reads the article RFID label information in Administrative Area by read write line, and by the item associations relation with storage, detect the comprising of RFID label information, involved relation mistake whether, whether confirmation article exist and are illegally moved, if exist, to terminal, send warning message; Receive the equipment control command that user inputs by terminal, central controller judges that by authority levels whether this instruction is legal, if legal, read the address information of corresponding device and send to terminal by server, terminal is set up and is connected with equipment by server, realizes the control of terminal to equipment;
Because the number of labels in system is numerous, an algorithm effectively avoiding conflict must be set, to tackle the label read-write error that may occur.For avoiding label read/write conflict, to reading of RFID label information, adopt hash function to carry out time slot allocation, the expression formula of wherein said hash function is: hash (k+1)=hash (k) <<3+hash (k)+P (k), (0≤k≤m), H=hash (m) %p; Wherein: the initial value of hash function is selected a prime number, P (k) represents the not coordination of RFID tag recognition code; M represents the figure place of No. ID, label, and p is for needing the label number of read-write in next time period, and H represents that hash value is divided by the remainder of p, with this, determines the time slot that label is launched.
Preferably, the password that in described step (1), terminal code is arranged by user and the hardware identifier code of terminal handler, obtain by cryptographic algorithm.
The invention has the advantages that:
By the flow layout of Internet of Things, effectively the handling process of the mass data in Internet of Things is managed, Internet of things system is efficiently moved, simultaneously, by the form of mapping table, simplified article inspection and apparatus control method in Internet of Things, reduced data processing amount, by improved hash algorithm, effectively avoided in Internet of things system the middle conflict phenomenon that may occur of reading of article RFID label simultaneously.
Accompanying drawing explanation
Fig. 1 is Internet of things system structure chart of the present invention;
Fig. 2 is flow chart of the present invention.
Embodiment
For technological means of the present invention and feature and beneficial effect are illustrated in further detail, existing in conjunction with concrete diagram, further set forth content of the present invention.
Internet of things system of the present invention is applicable to general district management, is particularly useful for the management of Administrative Area, and as shown in Figure 1, native system comprises as follows:
Terminal, carries out authentication for user, and article in Internet of Things are realized inquiry and equipment in Internet of Things is carried out to Long-distance Control; Described terminal can be individual digital equipment, mobile phone, computer; Described terminal is set up and is connected with Internet of things system in wired or wireless mode.
Central controller module, with server in system, article, end message mapping table generation module, controllable device address generation module, the coupling of RFID flow chart of data processing control module, for carry out terminal authentication, processing control information, inquiry Item Information, be encrypted computing and send alarm signal;
Server, for realizing and the connecting of terminal, and stores the address information of internet of things equipment, in authentication, by rear, sets up connecting of terminal and internet of things equipment;
Article, end message mapping table generation module, this module is used for setting up article, end message mapping table, and wherein Item Information mapping table is < Item Title, item code, involved code, comprises code >, and stores incidence relation; End message mapping table is < terminal code, authority levels >, the identification code that wherein terminal code is each user terminal; Item Title in mapping table, item code, involved code, comprises code and with identical binary data figure place, represents respectively, terminal code, authority levels represents with identical binary data figure place respectively;
Controllable device address generation module, for mapping relations are set up in the controllable device identification code of the Administrative Area address corresponding with it: in the time of in equipment access office Internet of Things, central controller reads the entrained product identification code of this equipment self, 5 bit digital information after product identification code are stored as the address information of this equipment, and be sent to server backup, for example product identification code is 123456, using 234.56 as address corresponding to this product, stores;
RFID flow chart of data processing control module, for the flow chart of data processing of reasonable arrangement system, guarantees the efficiency of data processing, generates the flow chart of data processing of tree structure, wherein the actual process occurring in each leaf node representative data processing; The order of each leaf node data-driven being processed to real process sorts, determine in each leaf node data handling procedure the upper limit number of process that can parallel processing, wherein, each leaf node at least comprises a process, obtains the complete tree structure figure that comprises data process method order;
Constraints module, for according to the item code of article mapping table, involved code, comprise the authority levels in code and end message mapping table, determine the constraints of RFID flow chart of data processing;
Preferably, the password that described middle terminal code is arranged by user and the hardware identifier code of terminal handler, obtain by cryptographic algorithm.
Preferably, the constraints of described constraints module is: when article inclusion relation does not meet mapping table information, send warning; What user was undertaken by terminal controls while exceeding authority levels, sends warning.
According to shown in Fig. 2, introduce control method of the present invention below, the concrete steps of its realization are as follows:
(1) set up article, end message mapping table, wherein Item Information mapping table is < Item Title, item code, involved code, comprise code >, and stores incidence relation, the item code that wherein involved coded representation comprises these article, comprise the code that coded representation is included in the article in these article, every article are by the information in RFID label record mapping table fixed thereon; End message mapping table is < terminal code, authority levels >, the identification code that wherein terminal code is each user terminal, between controller address in each identification code and Internet of things system, set up mapping relations, authority levels identifies the controlled scope of this terminal to Internet of things system;
Item Title in mapping table, item code, involved code, comprises code and with identical binary data figure place, represents respectively, terminal code, authority levels represents with identical binary data figure place respectively;
Mapping relations are set up in the controllable device identification code address corresponding with it in Administrative Area: in the time of in equipment access office Internet of Things, central controller reads the entrained product identification code of this equipment self, 5 bit digital information after product identification code are stored as the address information of this equipment, and be sent to server backup;
(2) the RFID flow chart of data processing of generation system, obtains the flow chart of data processing of tree structure, wherein each leaf node representative data actual process occurring in processing; The order of each leaf node data-driven being processed to real process sorts, determine in each leaf node data handling procedure the upper limit number of process that can parallel processing, can concurrent process number being set to upper limit number and subtracting 1 of leaf node, if leaf node process upper limit number is 1, be set to 1, obtain the complete tree structure figure that comprises data process method order;
(3) according to the item code in article mapping table, involved code, comprise the authority levels in code and end message mapping table, determine the constraints of RFID flow chart of data processing; This constraints is: when article inclusion relation does not meet mapping table information, send warning; What user was undertaken by terminal controls while exceeding authority levels, sends warning.The foundation of this constraints, for the flow process problem that illegal operation and the system self of system emerged in operation may occur has been carried out operative constraint, and sends different alarm signals, so that user is carried out to corresponding prompting.
(4) when user connects by terminal and the foundation of office Internet of things system, terminal sends to central controller by the hardware identifier code of terminal handler automatically, central controller obtains the terminal code of having stored by this identification code, whether the terminal code that authentication of users terminal generates after user inputs password is identical with the terminal code of having stored, and realizes terminal identity authentication; If authentication is passed through, central processing unit reads corresponding authority levels and receives the control command that user sends by terminal, otherwise sends warning message;
(5) receive user by the instruction of terminal input inquiry article, central controller reads the article RFID label information in Administrative Area by read write line, and by the item associations relation with storage, detect the comprising of RFID label information, involved relation mistake whether, whether confirmation article exist and are illegally moved, if exist, to terminal, send warning message; Receive the equipment control command that user inputs by terminal, central controller judges that by authority levels whether this instruction is legal, if legal, read the address information of corresponding device and send to terminal by server, terminal is set up and is connected with equipment by server, realizes the control of terminal to equipment;
Because the number of labels in system is numerous, an algorithm effectively avoiding conflict must be set, to tackle the label read-write error that may occur.For avoiding label read/write conflict, to reading of RFID label information, adopt hash function to carry out time slot allocation, the expression formula of wherein said hash function is: hash (k+1)=hash (k) <<3+hash (k)+P (k), (0≤k≤m), H=hash (m) %p; Wherein: the initial value of hash function is selected a prime number, P (k) represents the not coordination of RFID tag recognition code; M represents the figure place of No. ID, label, and p is for needing the label number of read-write in next time period, and H represents that hash value is divided by the remainder of p, with this, determines the time slot that label is launched.
Preferably, the password that in described step (1), terminal code is arranged by user and the hardware identifier code of terminal handler, obtain by cryptographic algorithm.
This method, to realizing efficient processing, simplification internet of things equipment control and the Item Management of Internet of Things data and improving the conflict that in Internet of things system, RFID label reads, has good result and significance.
Above execution mode is only for the present invention is described, but not limitation of the present invention.Those of ordinary skill in the art should be appreciated that technical scheme of the present invention is carried out to various combinations, revises or be equal to replacement, does not depart from the spirit and scope of technical solution of the present invention, and it all should be encompassed in the middle of claim scope of the present invention.
Claims (8)
1. the office Internet of Things control method based on RFID, is characterized in that, this control method comprises the following steps:
(1) set up article, end message mapping table: wherein: Item Information mapping table is < Item Title, item code, involved code, comprise code >, and stores incidence relation, the item code that wherein involved coded representation comprises these article, comprises the code that coded representation is included in the article in these article, and every article are by the information in RFID label record mapping table fixed thereon; End message mapping table is < terminal code, authority levels >, and the identification code that wherein terminal code is each user terminal, authority levels identifies the controlled scope of this terminal to Internet of things system;
Item Title in mapping table, item code, involved code, comprise code and with identical binary data figure place, represent respectively, terminal code, authority levels represent with identical binary data figure place respectively;
Mapping relations are set up in the controllable device identification code address corresponding with it in Administrative Area: in the time of in equipment access office Internet of Things, central controller reads the entrained product identification code of this equipment self, 5 bit digital information after product identification code are stored as the address information of this equipment, and be sent to server backup;
(2) the RFID flow chart of data processing of generation system, obtains the flow chart of data processing of tree structure, wherein each leaf node representative data actual process occurring in processing; The order of each leaf node data-driven being processed to real process sorts, determine in each leaf node data handling procedure the upper limit number of process that can parallel processing, can concurrent process number being set to upper limit number and subtracting 1 of leaf node, if leaf node process upper limit number is 1, be set to 1, obtain the complete tree structure figure that comprises data process method order;
(3) according to the item code in article mapping table, involved code, comprise the authority levels in code and end message mapping table, determine the constraints of RFID flow chart of data processing;
(4) when user connects by terminal and the foundation of office Internet of things system, terminal sends to central controller by the hardware identifier code of terminal handler automatically, central controller obtains the terminal code of having stored by this identification code, whether the terminal code that authentication of users terminal generates after user inputs password is identical with the terminal code of having stored, and realizes terminal identity authentication; If authentication is passed through, central processing unit reads corresponding authority levels and receives the control command that user sends by terminal, otherwise sends warning message;
(5) receive user by the instruction of terminal input inquiry article, central controller reads the article RFID label information in Administrative Area by read write line, and by the item associations relation with storage, detect the comprising of RFID label information, involved relation mistake whether, whether confirmation article exist and are illegally moved, if exist, to terminal, send warning message; Receive the equipment control command that user inputs by terminal, central controller judges that by authority levels whether this instruction is legal, if legal, read the address information of corresponding device and send to terminal by server, terminal is set up and is connected with equipment by server, realizes the control of terminal to equipment.
2. control method as claimed in claim 1, is characterized in that:
The password that in described step (1), terminal code is arranged by user and the hardware identifier code of terminal handler, obtain by cryptographic algorithm.
3. control method as claimed in claim 1, is characterized in that:
Constraints in described step (3) is: when article inclusion relation does not meet mapping table information, send warning; What user was undertaken by terminal controls while exceeding authority levels, sends warning.
4. control method as claimed in claim 1, is characterized in that:
In described step (5) for avoiding label read/write conflict, to reading of RFID label information, adopt hash function to carry out time slot allocation, the expression formula of wherein said hash function is: hash (k+1)=hash (k) <<3+hash (k)+P (k), (0≤k≤m), H=hash (m) %p;
Wherein: the initial value of hash function is selected a prime number, P (k) represents the not coordination of RFID tag recognition code; M represents the figure place of No. ID, label, and p is for needing the label number of read-write in next time period, and H represents that hash value is divided by the remainder of p, with this, determines the time slot that label is launched.
5. the office Internet of Things control system based on RFID, is characterized in that, this office Internet of Things control system comprises:
Terminal, carries out authentication for user, and article in Internet of Things are realized inquiry and equipment in Internet of Things is carried out to Long-distance Control;
Central controller module, with server module in system, article, end message mapping table generation module, controllable device address generation module, the coupling of RFID flow chart of data processing control module, for carry out terminal module authentication, processing control information, inquiry Item Information, be encrypted computing and send alarm signal;
Server, for realizing and the connecting of terminal, and stores the address information of internet of things equipment, in authentication, by rear, sets up connecting of terminal and internet of things equipment;
Article, end message mapping table generation module, this module is used for setting up article, end message mapping table, and wherein Item Information mapping table is < Item Title, item code, involved code, comprises code >, and stores incidence relation; End message mapping table is < terminal code, authority levels >, the identification code that wherein terminal code is each user terminal; Item Title in mapping table, item code, involved code, comprises code and with identical binary data figure place, represents respectively, terminal code, authority levels represents with identical binary data figure place respectively;
Controllable device address generation module, for mapping relations are set up in the controllable device identification code of the Administrative Area address corresponding with it: in the time of in equipment access office Internet of Things, central controller reads the entrained product identification code of this equipment self, 5 bit digital information after product identification code are stored as the address information of this equipment, and be sent to server backup;
RFID flow chart of data processing control module, for the flow chart of data processing of reasonable arrangement system, guarantees the efficiency of data processing, generates the flow chart of data processing of tree structure, wherein the actual process occurring in each leaf node representative data processing; The order of each leaf node data-driven being processed to real process sorts, determine in each leaf node data handling procedure the upper limit number of process that can parallel processing, wherein, each leaf node at least comprises a process, obtains the complete tree structure figure that comprises data process method order;
Constraints module, for according to the item code of article mapping table, involved code, comprise the authority levels in code and end message mapping table, determine the constraints of RFID flow chart of data processing.
6. system as claimed in claim 5, is characterized in that:
The password that described terminal code is arranged by user and the hardware identifier code of terminal handler, obtain by cryptographic algorithm.
7. system as claimed in claim 5, is characterized in that:
The constraints of described constraints module is: when article inclusion relation does not meet mapping table information, send warning; What user was undertaken by terminal controls while exceeding authority levels, sends warning.
8. system as claimed in claim 6, is characterized in that:
Described terminal can be individual digital equipment, mobile phone or computer, and described terminal is set up and connected with Internet of things system in wired or wireless mode.
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| CN201410206344.8A CN103997445A (en) | 2014-05-16 | 2014-05-16 | Method and system for controlling office internet of things based on RFID |
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| CN201410206344.8A CN103997445A (en) | 2014-05-16 | 2014-05-16 | Method and system for controlling office internet of things based on RFID |
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