CN104573432A - IC card intelligent heat energy meter embedded with information safety management module - Google Patents
IC card intelligent heat energy meter embedded with information safety management module Download PDFInfo
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Abstract
The invention discloses an IC card intelligent heat energy meter embedded with an information safety management module. The IC card intelligent heat energy meter embedded with the information safety management module comprises the information safety management module which comprises a processor, a first data interface, a second data interface and a FLASH storage, wherein the processor is respectively connected into the first data interface, the second data interface and the FLASH storage. The information safety management module conducts identity authentication when an IC card reading module and a heat energy sales management system exchange data so that the legality of the communication between the IC card reading module and the heat energy sales management system can be ensured. A terminal master controller of the IC card intelligent heat energy meter must be communicated with outside through the information safety management module. The permission setting of hierarchical management of a thermal energy company can be realized through the utilization of different secret keys. The secret keys can be updated in real time through the adoption of multi-level encryption ways of 3DES/AES and the program load port of the information safety management module so that risks caused by the secret key exposure can be avoided. Meanwhile, the IC card intelligent heat energy meter embedded with the information safety management module can ensure the independence of the terminal heat energy meter control of an energy company and is not limited by the outside world.
Description
The present invention is the divisional application that applicant proposes according to another part patent of invention of its earlier application, the application number of this application for a patent for invention is: 201310088829.7, the applying date is: on March 19th, 2013, denomination of invention is: the IC-card intellectual water meter being embedded with information security management module.
Technical field
The present invention relates to a kind of intellectual heat meter, in particular, the present invention relates generally to a kind of IC-card intellectual heat 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 heat meter and use widely, market has occurred the IC-card intellectual heat meter of many different brands.Thermoenergy Corp. conveniently uses and manages, and starts to adopt IC-card intellectual heat meter, and builds the management system of oneself on this basis.Because same Thermoenergy Corp. may adopt the IC-card intellectual heat meter of multiple brand, each manufacturer knows separately the management method of IC-card intellectual heat meter, different brands IC-card intellectual heat meter uses different management systems, operating equipment, transmission medium, management password, mode of operation, each Thermoenergy Corp. is caused not have the control of IC-card intellectual heat meter technically, IC-card intellectual heat meter can depart from the management system of Thermoenergy Corp., information is arbitrarily modified, using state is controlled, certain user specific or multiple user need not be paid and just can use heat energy, Thermoenergy Corp. also exists IC-card intellectual heat meter risk out of control.
Each IC-card intellectual heat meter manufacturer is in safety technique, 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 security of information management, there is risk in the reliability of message exchange, encryption, decryption technology application is unreasonable, cause certain customers 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 heat meter use, the management system departing from Thermoenergy Corp. sells heat energy arbitrarily, Thermoenergy Corp. also exists IC-card intellectual heat meter and management system risk simultaneously out of control.Therefore be necessary for the problems referred to above, further improvement is done to existing IC-card intellectual heat meter, namely invent a kind of IC-card intellectual heat meter being embedded with information security management module, realize information security management.
Summary of the invention
An object of the present invention is for above-mentioned deficiency, a kind of IC-card intellectual heat meter being embedded with information security management module is provided, with technical matterss such as the information security management of expecting to solve IC-card intellectual heat meter of the prior art and management system thereof can not be guaranteed, eliminate the risk of information security management in Thermoenergy Corp.'s operation.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
A kind of IC-card intellectual heat meter being embedded with information security management module provided by the present invention, comprises flow valve control device, flow measurement device, medium temperature pick-up unit, IC-card smart heat-energy meter terminal master controller and storer; Described flow measurement device access medium input port, for measuring rate-of flow, and transfers to IC-card smart heat-energy meter terminal master controller by variable; Described flow valve is placed in rate-of flow transmission channel and accesses IC-card smart heat-energy meter terminal master controller, for controlling opening and closedown of heat energy supply by IC-card smart heat-energy meter terminal master controller by flow valve, described medium temperature pick-up unit is by A/D converter access IC-card smart heat-energy meter terminal master controller, for detecting the temperature data of input media and output medium, and transferring to IC-card smart heat-energy meter terminal master controller, described storer also accesses IC-card smart heat-energy meter terminal master controller; Information security management module is also comprised in described IC-card intellectual heat 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 heat 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 smart heat-energy meter terminal master controller, for performing the data communication between processor and IC-card smart heat-energy meter terminal master controller, described IC-card smart heat-energy 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, management system is sold to the heat energy of write external data and carries out authentication, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by the second data-interface to IC-card smart heat-energy 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, sell management system according to the heat energy of external data to write external data and carry out authentication, when authentication result is judged as legal, then encrypted packets is decrypted and completeness check, on the contrary the original state that then resets;
After data integrity verifying passes through, the validity of data is verified, on the contrary the original state that then resets;
After Validation of Data is passed through, pre-service is carried out to the affairs comprised in data, and from IC-card smart heat-energy meter terminal master controller, obtain corresponding return message by the second data-interface, IC card information Switching Module is returned to by the first data-interface by after described return message encryption, then pre-processed results approved after effectively being confirmed and stored relevant operation information, and to IC-card smart heat-energy 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 sells different classification in management system respectively subsystem from heat energy carries out exchanges data, processor according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus certification heat energy sells the identity of management system, 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 pre-service 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 smart heat-energy 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 selling the multistage encryption and decryption of management system, IC-card smart heat-energy meter terminal master controller exchanges data to information security management module and heat energy, and the data encryption key that auxiliary processor acquisition heat energy sells management system carries out authentication.
Further technical scheme is: described encrypting module is by the AES (Advanced Encryption Standard in cryptography, the abbreviation of English Advanced Encryption Standard) or the mode of 3DES (triple data encryption algorithm, English Triple Data Encryption Algorithm) carry out data encrypting and deciphering.
Further technical scheme is: described storer is for storing the data message of the presell thermal energy coming from information security management module forwards; Described IC-card smart heat-energy meter terminal master controller is also connected with liquid crystal display by liquid crystal display circuit, for being deducted the data message initial value of the presell thermal energy in storer according to the variable in flow measurement device by IC-card smart heat-energy meter terminal master controller, and presented on a liquid crystal display by liquid crystal display circuit; Also comprise hummer in described intellectual heat meter, described IC-card smart heat-energy meter terminal master controller is by surplus judging circuit access hummer; Described medium temperature pick-up unit comprises supplying media temperature-detecting device and reflux medium temperature-detecting device, and described supplying media temperature-detecting device and reflux medium temperature-detecting device access IC-card smart heat-energy meter terminal master controller respectively by respective A/D converter.
Compared with prior art, one of beneficial effect of the present invention is: by embedding information security management module in IC-card intellectual heat meter, make it be sold when management system carries out exchanges data by IC card information Switching Module and heat energy and carry out authentication, ensure that the legitimacy of both communication, IC-card smart heat-energy meter terminal master controller could must be communicated with outside by information security management module; Utilize different keys can realize the priority assignation of Thermoenergy Corp.'s differentiated control, and adopt 3DES/AES multi-level encryption mode, make the security 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 smart heat-energy list structure being embedded with information security management module provided by the present invention is simple, can seamless access heat supplying managing system by the information security management module of inside, realize the dispersion manufacture of IC-card intellectual heat meter, unified management, range of application is wide, and ensure that the independence of Thermoenergy Corp. on terminal heat energy meter controls, not by extraneous restriction.
Accompanying drawing explanation
Fig. 1 is for illustration of the IC-card intellectual heat meter structured flowchart in one embodiment of the invention;
Fig. 2 is for for illustration of the information security management modular structure block diagram in one embodiment of the invention embedded by IC-card intellectual heat meter;
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 heat meters being embedded with information security management module, comprise flow valve control device, flow measurement device, medium temperature pick-up unit, IC-card smart heat-energy meter terminal master controller and storer; Described flow measurement device access medium input port, for measuring rate-of flow, and transfers to IC-card smart heat-energy meter terminal master controller by variable; Described flow valve is placed in rate-of flow transmission channel and accesses IC-card smart heat-energy meter terminal master controller, for controlling opening and closedown of heat energy supply by IC-card smart heat-energy meter terminal master controller by flow valve, described medium temperature pick-up unit is by A/D converter access IC-card smart heat-energy meter terminal master controller, for detecting the temperature data of input media and output medium, and transferring to IC-card smart heat-energy meter terminal master controller, described storer also accesses IC-card smart heat-energy meter terminal master controller; Unlike the prior art, information security management module is also comprised in described IC-card intellectual heat 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 heat 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 smart heat-energy meter terminal master controller, its effect performs the data communication between processor and IC-card smart heat-energy meter terminal master controller, and the effect of IC-card smart heat-energy 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, management system is sold to the heat energy of write external data and carries out authentication, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by the second data-interface to IC-card smart heat-energy meter terminal master controller according to the affairs comprised in data.
According to above-mentioned technical scheme, the technical matters that the present embodiment solves is the information security management module by above-mentioned composition structure, sell between management system at IC-card smart heat-energy meter terminal master controller and heat energy and carry out data retransmission, and give certification and encryption and decryption when forwarding, thus coordinate the IC-card intellectual heat meter of Thermoenergy Corp. to terminal to manage, to eliminate the risk of information security management in Thermoenergy Corp.'s operation.
And the Oscillator module shown in Fig. 1 and pin XIN, XOUT provide clock signal to information security management module; RAM storer 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 smart heat-energy meter terminal master controller pin.And go out as shown in Figure 1, in the present embodiment, the storer of above-mentioned access IC-card smart heat-energy 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, a kind of above-mentioned processor is provided to sell the concrete mode of management system authentication and affairs execution to heat energy, namely when processor receives the external data coming from the first data-interface, according to external data, management system is sold to heat energy and carry out authentication, when authentication result is judged as legal, then encrypted packets is decrypted and completeness check, on the contrary the original state that then resets;
After data integrity verifying passes through, the validity of data is verified, on the contrary the original state that then resets;
After Validation of Data is passed through, pre-service is carried out to the affairs comprised in data, and from IC-card smart heat-energy meter terminal master controller, obtain corresponding return message by the second data-interface, IC card information Switching Module is returned to by the first data-interface by after described return message encryption, then pre-processed results approved after effectively being confirmed and stored relevant operation information, and to IC-card smart heat-energy 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 original state; 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 smart heat-energy meter terminal master controller transmit operation instruction.
Contain the present embodiment peripheral data in above-mentioned technical scheme and sell management system authentication to the whole flow process of affairs wherein performed by processor from heat energy, by the programming of above-mentioned flow process, further enhance in information security management module the security receiving information and executing.And the above-mentioned processor reset original state repeatedly mentioned, be resetting processor and perform the state before any one operation above-mentioned, it is dormant state that such as processor carried out the state of authentication before receiving external data, be waken up by dormant state when receiving external data, but when being judged as illegal to the authentication that heat energy sells management system, processor then recovers dormant 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.Above-mentioned mentioned heat energy sells the terminal heat energy meter management system that management system can be Thermoenergy Corp.'s establishment in actual applications simultaneously.
And it is same, in another embodiment of the invention, for realizing being managed the information security management module in terminal IC-card intellectual heat 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 sells different classification in management system respectively subsystem from heat energy carries out exchanges data, processor according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus certification heat energy sells the identity of management system, 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 pre-service 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 smart heat-energy 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 smart heat-energy 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.
Shown in Fig. 1, be embedded with in the IC-card intellectual heat meter practical application of information security management module in above-described embodiment, be as good as with existing IC-card intellectual heat meter, IC-card intellectual heat meter master controller obtains data message from flow measurement device, the data come from the data of flow measurement device and storer are carried out difference operation, IC-card intellectual heat meter master controller connects hummer by surplus judging circuit, when heat energy value is about to use up, send alarm sound prompting user to need to supplement with money, IC-card intellectual heat meter master controller is also by controlling the open and close of flow valve, play the effect of the break-make of control medium traffic transport passage, when rate-of flow transmission channel disconnects, namely heat supply is stopped.
As mentioned here above, storer is for storing the data message of the presell thermal energy coming from information security management module forwards, described IC-card smart heat-energy meter terminal master controller is also connected with liquid crystal display by liquid crystal display circuit, for being deducted the data message initial value of the presell thermal energy in storer according to the variable in flow measurement device by IC-card smart heat-energy meter terminal master controller, and presented on a liquid crystal display by liquid crystal display circuit; All exchange data that heat energy sells management system and IC-card intellectual heat meter all have to pass through information security management module and arrive IC-card smart heat-energy meter terminal master controller, IC-card smart heat-energy 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 smart heat-energy meter terminal master controller completes the closing motion of rate-of flow transmission channel by flow valve, namely the medium cut off with heat enters thermoconverter, stops heat supply.
In addition, inventor is also with reference to the structure of intellectual heat meter in prior art, make above-mentioned medium temperature pick-up unit should comprise supplying media temperature-detecting device and reflux medium temperature-detecting device, described supplying media temperature-detecting device and reflux medium temperature-detecting device access IC-card smart heat-energy meter terminal master controller respectively by respective A/D converter, for detecting the different temperatures value of input media and output medium respectively, and IC-card smart heat-energy meter terminal master controller should be provided with the threshold range of the difference of supplying media temperature and reflux medium temperature, when both differences are outside threshold range, then illustrate that thermoconverter is abnormal, controllable flow rate valve cuts out, stop heat supply.
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 smart heat-energy 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 of information security management module integration on IC-card intellectual heat meter.
Shown in Fig. 1, for ensureing the security of data encryption and deciphering in the information security management module in intellectual heat meter further, preferably independently encrypting module is set therein, and by this independently encrypting module access processor, for selling management system to information security management module and heat energy, the multistage encryption and decryption of information security management module and IC-card smart heat-energy meter terminal master controller exchanges data, and the data encryption key that auxiliary processor acquisition heat energy sells management system carries out authentication, and the cipher mode that in reference prior art, security is higher, the preferred employing AES (Advanced Encryption Standard in cryptography, the abbreviation of English AdvancedEncryption Standard) or 3DES (triple data encryption algorithm, English Triple DataEncryption Algorithm) 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 heat meter embeds above-mentioned information security management module, the outside all communication datas of intellectual heat 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 heat energy is sold management system and information security management module can be considered as terminal, in order to manage IC-card intellectual heat meter, namely the compatible various brand of management system is sold with a heat energy, the IC-card intellectual heat meter of type is managed concentratedly, effective reduction Thermoenergy Corp. is to different brands in region, the difficulty of type heat energy 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 embodiment, these amendments and embodiment 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 (10)
1. be embedded with an IC-card intellectual heat meter for information security management module, comprise flow valve control device, flow measurement device, medium temperature pick-up unit, IC-card smart heat-energy meter terminal master controller and storer; Described flow measurement device access medium input port, for measuring rate-of flow, and transfers to IC-card smart heat-energy meter terminal master controller by variable; Described flow valve is placed in rate-of flow transmission channel and accesses IC-card smart heat-energy meter terminal master controller, for controlling opening and closedown of heat energy supply by IC-card smart heat-energy meter terminal master controller by flow valve, described medium temperature pick-up unit is by A/D converter access IC-card smart heat-energy meter terminal master controller, for detecting the temperature data of input media and output medium, and transferring to IC-card smart heat-energy meter terminal master controller, described storer also accesses IC-card smart heat-energy meter terminal master controller; It is characterized in that: in described IC-card intellectual heat 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 heat 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 smart heat-energy meter terminal master controller, for performing the data communication between processor and IC-card smart heat-energy meter terminal master controller, described IC-card smart heat-energy 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, the heat energy of subtend IC-card write external data is sold management system and is carried out authentication, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by the second data-interface to IC-card smart heat-energy meter terminal master controller according to the affairs comprised in data.
2. the IC-card intellectual heat meter being embedded with information security management module according to claim 1, it is characterized in that: described processor is used for when receiving the external data coming from the first data-interface, sell management system according to the heat energy of external data subtend IC-card write external data and carry out authentication, when authentication result is judged as legal, then encrypted packets is decrypted and completeness check, on the contrary the original state that then resets;
After data integrity verifying passes through, the validity of data is verified, on the contrary the original state that then resets;
After Validation of Data is passed through, pre-service is carried out to the affairs comprised in data, and from IC-card smart heat-energy meter terminal master controller, obtain corresponding return message by the second data-interface, IC card information Switching Module is returned to by the first data-interface by after described return message encryption, then pre-processed results approved after effectively being confirmed and stored relevant operation information, and to IC-card smart heat-energy meter terminal master controller transmit operation instruction; Otherwise then abandon pre-processed results or make caching process.
3. the IC-card intellectual heat meter being embedded with information security management module according to claim 1 and 2, 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 sells different classification in management system respectively subsystem from heat energy carries out exchanges data, processor according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus certification heat energy sells the identity of management system, 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 pre-service to the affairs in data.
4. the IC-card intellectual heat meter being embedded with information security management module according to claim 1 and 2, 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 smart heat-energy meter terminal master controller, and processor is to the pre-processed results of affairs in external data.
5. the IC-card intellectual heat meter being embedded with information security management module according to claim 1 and 2, is characterized in that: described processor is central processing unit or the single-chip microcomputer that can perform cryptographic algorithm.
6. the IC-card intellectual heat meter being embedded with information security management module according to claim 1 and 2, is characterized in that: the first described data-interface is IC-card interface.
7. the IC-card intellectual heat meter being embedded with information security management module according to claim 1 and 2, 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.
8. the IC-card intellectual heat meter being embedded with information security management module according to claim 1 and 2, it is characterized in that: described information security management module also comprises encrypting module, described encrypting module access processor, for selling the multistage encryption and decryption of management system, IC-card smart heat-energy meter terminal master controller exchanges data to information security management module and heat energy, and the data encryption key that auxiliary processor acquisition heat energy sells management system carries out authentication.
9. the IC-card intellectual heat meter being embedded with information security management module according to claim 8, is characterized in that: described encrypting module carries out data encrypting and deciphering by the mode of AES or 3DES.
10. the IC-card intellectual heat meter being embedded with information security management module according to claim 8, is characterized in that: described storer is for storing the data message of the presell thermal energy coming from information security management module forwards; Described IC-card smart heat-energy meter terminal master controller is also connected with liquid crystal display by liquid crystal display circuit, for being deducted the data message initial value of the presell thermal energy in storer according to the variable in flow measurement device by IC-card smart heat-energy meter terminal master controller, and presented on a liquid crystal display by liquid crystal display circuit; Also comprise hummer in described intellectual heat meter, described IC-card smart heat-energy meter terminal master controller is by surplus judging circuit access hummer; Described medium temperature pick-up unit comprises supplying media temperature-detecting device and reflux medium temperature-detecting device, and described supplying media temperature-detecting device and reflux medium temperature-detecting device access IC-card smart heat-energy meter terminal master controller respectively by respective A/D converter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510033032.6A CN104573432A (en) | 2013-03-19 | 2013-03-19 | IC card intelligent heat energy meter embedded with information safety management module |
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| CN201510033032.6A CN104573432A (en) | 2013-03-19 | 2013-03-19 | IC card intelligent heat energy meter embedded with information safety management module |
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| CN201310088829.7A Division CN103199993B (en) | 2013-03-19 | 2013-03-19 | Be embedded with the IC-card intellectual water meter of information security management module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123199A (en) * | 2017-04-12 | 2017-09-01 | 常州大学 | Card-scanning type heat energy meter with room temperature self-modulation regulating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123199A (en) * | 2017-04-12 | 2017-09-01 | 常州大学 | Card-scanning type heat energy meter with room temperature self-modulation regulating device |
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