CN103199993B - Be embedded with the IC-card intellectual water meter of information security management module - Google Patents
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- CN103199993B CN103199993B CN201310088829.7A CN201310088829A CN103199993B CN 103199993 B CN103199993 B CN 103199993B CN 201310088829 A CN201310088829 A CN 201310088829A CN 103199993 B CN103199993 B CN 103199993B
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Abstract
The invention discloses a kind of IC-card intellectual water meter being embedded with information security management module, it comprises information security management module, described information security management module comprises processor, first data-interface, second data-interface and FLASH memory, processor accesses the first data-interface respectively, second data-interface and FLASH memory, described information security management module carries out authentication by IC-card read module with selling when water management system carries out exchanges data, ensure that the legitimacy of both communication, IC-card reading meter terminal master controller could must be communicated with outside by information security management module, utilize different keys can realize the priority assignation of Running-water Company's differentiated control, and adopt 3DES/AES multi-level encryption mode, and by upgrade key during download program cause for gossip in information security management module, avoid the risk that key exposure brings, invention simultaneously can ensure the independence of Running-water Company on terminal water meter controls, and not by extraneous restriction.
Description
Technical field
The present invention relates to a kind of intellectual water meter, in particular, the present invention relates generally to a kind of IC-card intellectual water meter being embedded with information security management module.
Background technology
In recent years, along with the development of electronic technology, and obtain on IC-card intellectual water meter and use widely, market has occurred the IC-card intellectual water meter of multiple brand.Running-water Company conveniently uses and manages, and starts to adopt IC-card intellectual water meter, and builds the management system of oneself on this basis.Because same Running-water Company may adopt the IC-card intellectual water meter of multiple brand, each manufacturer knows separately the management method of IC-card intellectual water meter, different brands IC-card intellectual water meter uses different management systems, operating equipment, transmission medium, management password, mode of operation, each Running-water Company is caused not have the control of IC-card intellectual water meter technically, IC-card intellectual water meter can depart from the management system of Running-water Company, information is arbitrarily modified, using state is controlled, certain user specific or multiple user need not be paid and just can use running water, Running-water Company also exists IC-card intellectual water meter risk out of control.
Each IC-card intellectual water meter manufacturer is in safe practice, level in Data Interchange Technology is uneven, the control and management technology of respective exploitation is not identical with administrating system yet, security guarantee also cannot meet the demands, cause portioned product in the fail safe of information management, there is risk in the reliability of information exchange, encryption, decryption technology application is unreasonable, cause disabled user can by corresponding technological means, obtain the data analysis in transmission medium, breaking encryption algorithm and data protocol, thus write out the program of corresponding cooperation IC-card intellectual water meter use, the management system departing from Running-water Company sells running water arbitrarily, Running-water Company also exists IC-card intellectual water meter and management system risk simultaneously out of control.Therefore be necessary for the problems referred to above, further improvement done to existing IC-card intellectual water meter, realizes information security management.
Summary of the invention
An object of the present invention is for above-mentioned deficiency, a kind of IC-card intellectual water meter being embedded with information security management module is provided, with problems such as the information security management of expecting to solve IC-card intellectual water meter of the prior art and management system thereof can not be guaranteed, eliminate the risk of information security management in Running-water Company's operation.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of IC-card intellectual water meter being embedded with information security management module provided by the present invention, comprise valve module, IC-card reading meter terminal master controller, water flow measuring device, memory, described water flow measuring device accesses water source entrance on IC-card intellectual water meter and IC-card reading meter terminal master controller respectively, for measuring discharge, and variable is exported to IC-card reading meter terminal master controller; Water source entrance on the IC-card of the access respectively intellectual water meter that described valve module is direct or indirect and water source export, and by valve module control circuit access IC-card reading meter terminal master controller, for opening and shutoff by IC-card reading meter terminal main controller controls valve module; Described memory also accesses IC-card reading meter terminal master controller, information security management module is also comprised in described IC-card intellectual water meter, described information security management module comprises processor, the first data-interface, the second data-interface and FLASH memory, described processor accesses the first data-interface, the second data-interface and FLASH memory respectively, wherein:
Described first data-interface access IC card information Switching Module, communicates with the unique data of IC card information Switching Module for performing IC-card intellectual water meter, and transmits it to processor when receiving the external data coming from IC card information Switching Module;
Described FLASH memory is for storing control in information security management module and documentor;
Described second data-interface access IC-card reading meter terminal master controller, for performing the data communication between processor and IC-card reading meter terminal master controller, described IC-card reading meter terminal master controller is used for performing the operation of corresponding table end according to the instruction of processor;
Described processor is used for when receiving the external data coming from the first data-interface, authentication is carried out to the water management system of selling of write external data, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by the second data-interface to IC-card reading meter terminal master controller according to the affairs comprised in data.
As preferably, further technical scheme is: described processor is used for when receiving the external data coming from the first data-interface, authentication is carried out according to the water management system of selling of external data to write external data, when authentication result is judged as legal, then encrypted packets is decrypted and completeness check, on the contrary the initial condition that then resets;
After data integrity verifying passes through, the validity of data is verified, on the contrary the initial condition that then resets;
After Validation of Data is passed through, preliminary treatment is carried out to the affairs comprised in data, and from IC-card reading meter terminal master controller, obtain corresponding return information by the second data-interface, IC card information Switching Module is returned to by the first data-interface by after described return information encryption, then pre-processed results approved after effectively being confirmed and stored relevant operation information, and to IC-card reading meter terminal master controller transmit operation instruction; Otherwise then abandon pre-processed results or make caching process.
Further technical scheme is: preset agreement restrictive condition and multiple different cipher key procedures in described FLASH memory, for when information security management module carries out exchanges data from the subsystem selling different classification in water management system respectively, processor according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus the identity of water management system is sold in certification, and after encrypted packets deciphering and completeness check are passed through, according to the validity of agreement restrictive condition verification msg under current identity, judge whether to carry out preliminary treatment to the affairs in data.
Further technical scheme is: also comprise eeprom memory in described information security management module, described eeprom memory also accesses processor, for the associative operation information of storage of processor to IC-card reading meter terminal master controller, and processor is to the pre-processed results of affairs in external data.
Further technical scheme is: described processor is central processing unit or the single-chip microcomputer that can perform cryptographic algorithm.
Further technical scheme is: the first described data-interface is IC-card interface.
Further technical scheme is: the second described data-interface be at least in the middle of USART serial line interface, SPI serial line interface or I2C serial line interface any one.
Further technical scheme is: described information security management module also comprises encrypting module, described encrypting module access processor, for to information security management module and the multistage encryption and decryption of selling water management system, IC-card reading meter terminal master controller exchanges data, and auxiliary processor obtains the data encryption key selling water management system carries out authentication.
Further technical scheme is: described encrypting module is by the Advanced Encryption Standard in AES(cryptography, the abbreviation of English AdvancedEncryptionStandard) or the triple DEA of 3DES(, English TripleDataEncryptionAlgorithm) mode carry out data encrypting and deciphering.
Further technical scheme is: described memory is for storing the presell water yield data message coming from information security management module forwards, and described IC-card reading meter terminal master controller is also connected with LCDs by liquid crystal display circuit, for the presell water yield data message in water ga(u)ge magnitude information and memory being processed by IC-card reading meter terminal master controller, and presented in LCDs by liquid crystal display circuit.
Compared with prior art, one of beneficial effect of the present invention is: by embedding information security management module in IC-card intellectual water meter, it is made to carry out authentication by IC card information Switching Module with selling when water management system carries out exchanges data, ensure that the legitimacy of both communication, IC-card reading meter terminal master controller could must be communicated with outside by information security management module; Utilize different keys can realize the priority assignation of Running-water Company's differentiated control, and adopt 3DES/AES multi-level encryption mode, make the fail safe of key higher, and by upgrade key during download program cause for gossip in information security management module, avoid the risk that key exposure brings; By built-in data verifying program, ensure that the data of transmission are true, accurate, complete.Simultaneously a kind of IC-card intellectual water meter structure being embedded with information security management module provided by the present invention is simple, can seamless access water supply management system by the information security management module of inside, realize the dispersion manufacture of IC-card intellectual water meter, unified management, range of application is wide, and ensure that the independence of Running-water Company on terminal water meter controls, not by extraneous restriction.
Accompanying drawing explanation
Fig. 1 is for illustration of the IC-card intellectual water meter structured flowchart in one embodiment of the invention;
Fig. 2 is the information security management modular structure block diagram for illustration of embedding in one embodiment of the invention;
Fig. 3 is for illustration of the management system block diagram in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
Shown in figure 1, Fig. 2, one embodiment of the present of invention are a kind of IC-card intellectual water meters being embedded with information security management module, comprise valve module, IC-card reading meter terminal master controller, water flow measuring device, memory, described water flow measuring device accesses water source entrance on IC-card intellectual water meter and IC-card reading meter terminal master controller respectively, for measuring discharge, and variable is exported to IC-card reading meter terminal master controller; Water source entrance on the IC-card of the access respectively intellectual water meter that described valve module is direct or indirect and water source export, and by valve module control circuit access IC-card reading meter terminal master controller, for opening and shutoff by IC-card reading meter terminal main controller controls valve module; Described memory also accesses IC-card reading meter terminal master controller; Unlike the prior art, information security management module is also comprised in described IC-card intellectual water meter, described information security management module comprises processor, the first data-interface, the second data-interface and FLASH memory, described processor accesses the first data-interface, the second data-interface and FLASH memory respectively, wherein:
Above-mentioned first data-interface access IC card information Switching Module, its effect performs IC-card intellectual water meter to communicate with the unique data of IC card information Switching Module, and transmit it to processor when receiving the external data coming from IC card information Switching Module;
The effect of above-mentioned FLASH memory stores control in information security management module and documentor;
Above-mentioned second data-interface access IC-card reading meter terminal master controller, its effect performs the data communication between processor and IC-card reading meter terminal master controller, and the effect of IC-card reading meter terminal master controller performs the operation of respective table end according to the instruction of processor;
The effect of above-mentioned processor is when receiving the external data coming from the first data-interface, authentication is carried out to the water management system of selling of write external data, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by the second data-interface to IC-card reading meter terminal master controller according to the affairs comprised in data.
According to above-mentioned technical scheme, the technical problem that the present embodiment solves is the information security management module by above-mentioned composition structure, at IC-card reading meter terminal master controller and sell between water management system and carry out data retransmission, and give certification and encryption and decryption when forwarding, thus coordinate the IC-card intellectual water meter of Running-water Company to terminal to manage, to eliminate the risk of information security management in Running-water Company's operation.
And the Oscillator module shown in Fig. 1 and pin XIN, XOUT provide clock signal to information security management module; RAM memory is used for the operating ephemeral data of memory module; VCC and VSS two pins provides working power for information security management module, and this power supply should be continued power and can not be provided by IC-card reading meter terminal master controller pin.And go out as shown in Figure 2, in the present embodiment, the memory of above-mentioned access IC-card reading meter terminal master controller preferably adopts eeprom memory.
Shown in Fig. 1, in the embodiment that the present invention is more preferably for technical solution problem, the concrete mode of a kind of above-mentioned processor to selling water management system authentication and affairs execution is provided, namely when processor receives the external data coming from the first data-interface, authentication is carried out to selling water management system according to external data, when authentication result is judged as legal, then encrypted packets is decrypted and completeness check, on the contrary the initial condition that then resets;
After data integrity verifying passes through, the validity of data is verified, on the contrary the initial condition that then resets;
After Validation of Data is passed through, preliminary treatment is carried out to the affairs comprised in data, and from IC-card reading meter terminal master controller, obtain corresponding return information by the second data-interface, IC card information Switching Module is returned to by the first data-interface by after described return information encryption, then pre-processed results approved after effectively being confirmed and stored relevant operation information, and to IC-card reading meter terminal master controller transmit operation instruction; Such as, otherwise then abandon pre-processed results or make caching process, namely do not receive the confirmation result of IC card information Switching Module within the time preset, do not receive the confirmation of IC card information Switching Module in three minutes, then reset initial condition; Aforesaid caching process refers to keeps in pre-processed results instruction, when processor is again waken up and receives the confirmation of IC card information Switching Module, then in the same way to IC-card reading meter terminal master controller transmit operation instruction.
The present embodiment peripheral data are contained from selling water management system authentication to the whole flow process of affairs wherein performed by processor in above-mentioned technical scheme, by the programming of above-mentioned flow process, further enhance in information security management module the fail safe receiving information and executing.And the above-mentioned processor reset initial condition repeatedly mentioned, be resetting processor and perform the state before any one operation above-mentioned, it is resting state that such as processor carried out the state of authentication before receiving external data, be waken up by resting state when receiving external data, but when being judged as illegal to the authentication of selling water management system, processor then recovers resting state, do not carry out any operation, in other step, the situation of processor reset also substantially as hereinbefore, when failing the authentication, operation note can be stored by processor.Simultaneously above-mentioned mentioned water management system of selling can be the terminal water meter management system that Running-water Company sets up in actual applications.
And it is same, in another embodiment of the invention, for realizing being managed the information security management module in terminal IC-card intellectual water meter by different rights, need in above-mentioned FLASH memory preset agreement restrictive condition and multiple different cipher key procedures, it act as when information security management module carries out exchanges data from the subsystem selling different classification in water management system respectively, processor according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus the identity of water management system is sold in certification, and after encrypted packets deciphering and completeness check are passed through, according to the validity of agreement restrictive condition verification msg under current identity, judge whether to carry out preliminary treatment to the affairs in data.
According to another embodiment of the present invention, as mentioned here above, for ease of the buffer memory of processor pre-processed results, in information security management module, also relatively independent eeprom memory can be set, and eeprom memory is also accessed processor, for the associative operation information of storage of processor to IC-card reading meter terminal master controller, processor is to the pre-processed results of affairs in external data, and the failure record of processor checking, and in FLASH memory, be also provided with other program that can be utilized by processor, namely processor to the associative operation information of IC-card reading meter terminal master controller once be stored to after in eeprom memory, by unsuppressible-suppression and amendment, to make the running status of information security management module leave complete record.
Be embedded with in the IC-card intellectual water meter practical application of information security management module in above-described embodiment, be as good as with existing IC-card intellectual water meter, user's water consumption is measured by flow measurement device, and water consumption is delivered to IC-card reading meter terminal master controller, described valve module best access flow measurement mechanism rear end, namely indirectly running water input port is accessed, the output termination running water delivery outlet of valve module, IC-card reading meter terminal master controller carries out switch valve operation by valve module control circuit to valve module;
Above-mentioned memory is for storing the presell water yield data message coming from information security management module forwards, presell water yield data message in water ga(u)ge magnitude information and memory processes by IC-card reading meter terminal master controller, and pass to display by display circuit, relevant information such as display display water consumption and surplus water etc., the all swap datas selling water management system and IC-card intellectual water meter all have to pass through information security management module and arrive IC-card reading meter terminal master controller, IC-card reading meter terminal master controller is according to the instruction received, complete corresponding operation, such as when the balance depletion of supplementing with money in subscriber's meter, IC-card reading meter terminal master controller completes the shutoff action of valve module by valve module control circuit, and then stop supplying water.
The core of the information security management module that above-described embodiment is mentioned is processor, for performing corresponding program and data encryption, in another embodiment of the present invention, above-mentioned processor is directly adopt in prior art can perform cryptographic algorithm or such as, with the central processing unit of ready-made cryptographic algorithm or single-chip microcomputer, EFM32 etc.
Based on data communication mode required in above-described embodiment, inventor, with reference to prior art, is IC-card interface for what carry out that the first data-interface of unique communication adopts with IC card information Switching Module in above-described embodiment.
And it is corresponding, the second data-interface that in above-described embodiment, processor and IC-card reading meter terminal master controller carry out communicating preferably matches with conventional master controller, the serial line interfaces such as such as USART interface, SPI interface or I2C interface, to increase the compatibility on information security management module integration and IC-card intellectual water meter.
Shown in Fig. 1, for ensureing the fail safe of data encryption and solution in the information security management module in intellectual water meter further, preferably independently encrypting module is set therein, and by this independently encrypting module access processor, for to information security management module with sell water management system, the multistage encryption and decryption of information security management module and IC-card reading meter terminal master controller exchanges data, and the data encryption key that water management system is sold in auxiliary processor acquisition carries out authentication, and the cipher mode that in reference prior art, fail safe is higher, Advanced Encryption Standard in preferred employing AES(cryptography, the abbreviation of English AdvancedEncryptionStandard) or the triple DEA of 3DES(, English TripleDataEncryptionAlgorithm) encryption and decryption is carried out to the data of coming and going in information security management module.
Shown in Fig. 3, after IC-card intellectual water meter embeds above-mentioned information security management module, the outside all communication datas of intellectual water meter are all by forwarding after information security management module encryption and decryption, and the internal processes of information security management module is unique, therefore sell water management system and information security management module can be considered as terminal, in order to manage IC-card intellectual water meter, namely sell water management system compatible various brand with one, the IC-card intellectual water meter of type is managed concentratedly, effective reduction Running-water Company is to different brands in region, the difficulty of type water meter integration management.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and execution mode, these amendments and execution mode will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (9)
1. one kind is embedded with the IC-card intellectual water meter of information security management module, comprise valve module, IC-card reading meter terminal master controller, water flow measuring device, memory, described water flow measuring device accesses water source entrance on IC-card intellectual water meter and IC-card reading meter terminal master controller respectively, for measuring discharge, and variable is exported to IC-card reading meter terminal master controller; Water source entrance on the IC-card of the access respectively intellectual water meter that described valve module is direct or indirect and water source export, and by valve module control circuit access IC-card reading meter terminal master controller, for opening and shutoff by IC-card reading meter terminal main controller controls valve module; Described memory also accesses IC-card reading meter terminal master controller, it is characterized in that: in described IC-card intellectual water meter, also comprise information security management module, described information security management module comprises processor, the first data-interface, the second data-interface and FLASH memory, described processor accesses the first data-interface, the second data-interface and FLASH memory respectively, wherein:
Described first data-interface access IC card information Switching Module, communicates with the unique data of IC card information Switching Module for performing IC-card intellectual water meter, and transmits it to processor when receiving the external data coming from IC card information Switching Module;
Described FLASH memory is for storing control in information security management module and documentor;
Described second data-interface access IC-card reading meter terminal master controller, for performing the data communication between processor and IC-card reading meter terminal master controller, described IC-card reading meter terminal master controller is used for performing the operation of corresponding table end according to the instruction of processor;
Described processor is used for when receiving the external data coming from the first data-interface, water management system of selling according to external data subtend IC-card write external data carries out authentication, when authentication result is judged as legal, then encrypted packets is decrypted and completeness check, on the contrary the initial condition that then resets;
After data integrity verifying passes through, the validity of data is verified, on the contrary the initial condition that then resets;
After Validation of Data is passed through, preliminary treatment is carried out to the affairs comprised in data, and from IC-card reading meter terminal master controller, obtain corresponding return information by the second data-interface, IC card information Switching Module is returned to by the first data-interface by after described return information encryption, then pre-processed results approved after effectively being confirmed and stored relevant operation information, and to IC-card reading meter terminal master controller transmit operation instruction; Otherwise then abandon pre-processed results or make caching process.
2. the IC-card intellectual water meter being embedded with information security management module according to claim 1, it is characterized in that: in described FLASH memory, preset agreement restrictive condition and multiple different cipher key procedures, for when information security management module carries out exchanges data from the subsystem selling different classification in water management system respectively, processor according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus the identity of water management system is sold in certification, and after encrypted packets deciphering and completeness check are passed through, according to the validity of agreement restrictive condition verification msg under current identity, judge whether to carry out preliminary treatment to the affairs in data.
3. the IC-card intellectual water meter being embedded with information security management module according to claim 1, it is characterized in that: in described information security management module, also comprise eeprom memory, described eeprom memory also accesses processor, for the associative operation information of storage of processor to IC-card reading meter terminal master controller, and processor is to the pre-processed results of affairs in external data.
4. the IC-card intellectual water meter being embedded with information security management module according to claim 1, is characterized in that: described processor is central processing unit or the single-chip microcomputer that can perform cryptographic algorithm.
5. the IC-card intellectual water meter being embedded with information security management module according to claim 1, is characterized in that: the first described data-interface is IC-card interface.
6. the IC-card intellectual water meter being embedded with information security management module according to claim 1, is characterized in that: the second described data-interface be at least in the middle of USART serial line interface, SPI serial line interface or I2C serial line interface any one.
7. the IC-card intellectual water meter being embedded with information security management module according to claim 1, it is characterized in that: described information security management module also comprises encrypting module, described encrypting module access processor, for to information security management module and the multistage encryption and decryption of selling water management system, IC-card reading meter terminal master controller exchanges data, and auxiliary processor obtains the data encryption key selling water management system carries out authentication.
8. the IC-card intellectual water meter being embedded with information security management module according to claim 7, is characterized in that: described encrypting module carries out data encrypting and deciphering by the mode of AES or 3DES.
9. the IC-card intellectual water meter being embedded with information security management module according to claim 1, it is characterized in that: described memory is for storing the presell water yield data message coming from information security management module forwards, and described IC-card reading meter terminal master controller is also connected with LCDs by liquid crystal display circuit, for the presell water yield data message in water ga(u)ge magnitude information and memory being processed by IC-card reading meter terminal master controller, and presented in LCDs by liquid crystal display circuit.
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610000 Longquanyi, Sichuan Province Industrial Park licensing Patentee after: Chengdu Qinchuan networking Polytron Technologies Inc Address before: 610000 Longquanyi, Sichuan Province Industrial Park licensing Patentee before: Chengdu Taichuan Technology Development Co., Ltd. |