CN103236113B - IC-card intelligent electric energy meter information security management module - Google Patents
IC-card intelligent electric energy meter information security management module Download PDFInfo
- Publication number
- CN103236113B CN103236113B CN201310125423.1A CN201310125423A CN103236113B CN 103236113 B CN103236113 B CN 103236113B CN 201310125423 A CN201310125423 A CN 201310125423A CN 103236113 B CN103236113 B CN 103236113B
- Authority
- CN
- China
- Prior art keywords
- data
- electric energy
- energy meter
- intelligent electric
- information security
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Storage Device Security (AREA)
- Credit Cards Or The Like (AREA)
Abstract
The invention discloses a kind of IC-card intelligent electric energy meter information security management module, belong to a kind of IC-card intelligent electric energy meter management aid, information security management module comprises processor, the first data-interface, the second data-interface and FLASH memory, processor accesses the first data-interface, the second data-interface and FLASH memory respectively, carry out authentication when information security management module carries out exchanges data by IC card information Switching Module and management system for selling power, ensure that the legitimacy of both communication; And utilize different keys can realize the differentiated control of Utilities Electric Co., 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; The modular structure of simultaneously inventing is simple, can ensure the independence of energy company on electric energy meter controls, and not by extraneous restriction.
Description
Technical field
The present invention relates to a kind of IC-card intelligent electric energy meter management aid, in particular, the present invention relates generally to a kind of IC-card intelligent electric energy meter information security management module.
Background technology
In recent years, along with the development of science and technology, each producer have developed the IC-card intelligent electric energy meter of various brand and puts into production in enormous quantities.Utilities Electric Co. has adopted IC intelligent electric energy meter as terminal meter equipment in a large number, and builds the management system of oneself on this basis.Because same Utilities Electric Co. may adopt the IC-card intelligent electric energy meter of multiple brand, each manufacturer knows separately the management method of IC-card intelligent electric energy meter, different brands IC-card intelligent electric energy meter uses different management systems, operating equipment, transmission medium, management password, mode of operation etc., each Utilities Electric Co. is caused not have the control of IC-card intelligent electric energy meter technically, IC-card intelligent electric energy meter can depart from the management system of Utilities Electric Co., information is arbitrarily modified, using state is controlled, certain user specific or multiple user need not be paid just can electricity consumption, Utilities Electric Co. also exists IC-card intelligent electric energy meter risk out of control.
IC-card intelligent electric energy meter producer designed, designed and the respective control and management technology of exploitation are with administrating system, each manufacturer is in safety technique, level in Data Interchange Technology is also uneven, cause portioned product in the security of information management, there is risk in the reliability of message exchange, encryption, decryption technology application is unreasonable, causing 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 intelligent electric energy meter use, the management system departing from Utilities Electric Co. goes out electricity sales amount arbitrarily, Utilities Electric Co. also exists IC-card intelligent electric energy meter and management system risk simultaneously out of control.Therefore be necessary for the problems referred to above, in IC-card intelligent electric energy meter, install a kind of management aid of information security management additional, realize information security management.
Summary of the invention
An object of the present invention is for above-mentioned deficiency, a kind of IC-card intelligent electric energy meter information security management module is provided, with problems such as the information security management of expecting to solve various IC-card intelligent electric energy meter of the prior art and management system thereof can not be guaranteed, eliminate the risk of information security management in Utilities Electric Co.'s operation.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
A kind of IC-card intelligent electric energy meter information security management module provided by the present invention, 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 communicates with the unique data of IC card information Switching Module for performing IC-card intelligent electric energy 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 is for performing the data communication between processor and IC-card intelligent electric energy meter terminal master controller, and described IC-card intelligent electric 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 management system for selling power of subtend IC-card write external data 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 intelligent electric 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, management system for selling power 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 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 intelligent electric 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 intelligent electric 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 the subsystem of information security management module classification different from management system for selling power respectively carries out exchanges data, processor according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus the identity of certification management system for selling power, 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 intelligent electric 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 the multistage encryption and decryption to information security management module and management system for selling power, IC-card intelligent electric energy meter terminal master controller exchanges data, and the data encryption key that auxiliary processor obtains management system for selling power 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 data encryption algorithm of 3DES(, English TripleDataEncryptionAlgorithm) mode carry out data encrypting and deciphering.
Compared with prior art, one of beneficial effect of the present invention is: carry out authentication when information security management module carries out exchanges data by IC card information Switching Module and management system for selling power, ensure that the legitimacy of both communication, IC-card intelligent electric 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 Utilities Electric Co.'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.A kind of IC-card intelligent electric energy meter information security management modular structure provided by the present invention is simple simultaneously, the compatible IC-card intelligent electric energy meter terminal master controller with bus interface can be embedded in the IC-card intelligent electric energy meter of any type, and seamless access power supply management system, realize the dispersion manufacture of IC-card intelligent electric energy meter, unified management, range of application is wide, and ensure that the independence of Utilities Electric Co. on electric energy meter controls, not by extraneous restriction.
Accompanying drawing explanation
Fig. 1 is for illustration of the information security management modular structure block diagram in the embodiment of the present invention;
Fig. 2 is for illustration of the information security management module application block diagram in the embodiment of the present 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, one embodiment of the present of invention are a kind of IC-card intelligent electric energy meter information security management modules, 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:
The effect of above-mentioned first data-interface performs IC-card intelligent electric energy 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;
Shown in figure 2, the effect of above-mentioned second data-interface performs the data communication between processor and IC-card intelligent electric energy meter terminal master controller, and the effect of IC-card intelligent electric 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, the management system for selling power of subtend IC-card write external data 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 intelligent electric 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, data retransmission is carried out between IC-card intelligent electric energy meter terminal master controller and management system for selling power, and give certification and encryption and decryption when forwarding, thus coordinate the IC-card intelligent electric energy meter of Utilities Electric Co. to terminal to manage, to eliminate the risk of information security management in Utilities Electric Co.'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 the pin of IC-card intelligent electric energy meter terminal master controller.
Shown in Fig. 1, in the embodiment that the present invention is more preferably for technical solution problem, the concrete mode that a kind of above-mentioned processor performs management system for selling power authentication and affairs is provided, namely when processor receives the external data coming from the first data-interface, according to external data, authentication is carried out to management system for selling power, 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 intelligent electric 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 intelligent electric 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 intelligent electric energy meter terminal master controller transmit operation instruction.
The whole flow process of the present embodiment peripheral data from management system for selling power authentication to affairs wherein performed by processor is further comprises in above-mentioned technical scheme, 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 of management system for selling power, 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 management system for selling power can be the terminal electric energy meter comprehensive management system that Utilities Electric Co. is set up in actual applications simultaneously.
And it is same, in another embodiment of the invention, for realizing being managed information security management module by different rights, need in above-mentioned FLASH memory preset agreement restrictive condition and multiple different cipher key procedures, it act as when the subsystem of information security management module classification different from management system for selling power respectively carries out exchanges data, processor according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus the identity of certification management system for selling power, 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 intelligent electric 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 intelligent electric 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. 2, in the practical application of the IC-card intelligent electric energy meter information security management module in above-described embodiment, between access IC-card intelligent electric energy meter terminal master controller and various IC card information Switching Module.IC-card intelligent electric energy meter itself is containing several functions module, as pulse counter module, memory module, display module, relay control module, surplus reminding module etc., these modules are by being connected with IC-card intelligent electric energy meter terminal master controller, complete the correlation function of IC-card intelligent electric energy meter, measure as completed power consumption by pulse counter module, display module shows power consumption and dump energy, relay control module is as power on/off switch, surplus reminding module is before institute's purchase of electricity is about to be finished, power purchase operation etc. should be carried out as early as possible by hummer prompting user.
All exchanges data of IC-card intelligent electric energy meter and outside management system for selling power all have to pass through information security management module and could realize, and ensure that IC-card intelligent electric energy meter is in controlled circumstances all the time with this, ensure the security of data transmission.
The processor that above-described embodiment is mentioned is the core of information security management module, for performing corresponding program and data encryption, in another embodiment of the present invention, above-mentioned processor is directly adopt the central processing unit or single-chip microcomputer that can perform cryptographic algorithm in prior art, such as 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 intelligent electric 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 on information security management module integration and IC-card intelligent electric energy meter.
Shown in Fig. 1, for the security of data encryption and deciphering in the administration module that ensures information security further, preferably independently encrypting module is set therein, and by this independently encrypting module access processor, for to information security management module and management system for selling power, the multistage encryption and decryption of information security management module and IC-card intelligent electric energy meter terminal master controller exchanges data, and the data encryption key that auxiliary processor obtains management system for selling power carries out authentication, and the cipher mode that in reference prior art, security is higher, Advanced Encryption Standard in preferred employing AES(cryptography, the abbreviation of English AdvancedEncryptionStandard) or the triple data encryption algorithm 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 the integrated above-mentioned information security management module of IC-card intelligent electric energy meter that multiple different vendor produces, the outside all communication datas of intelligent electric energy 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 information security management module can be considered as terminal by management system for selling power, in order to manage IC-card intelligent electric energy meter, namely with the compatible various brand of a management system for selling power, the IC-card intelligent electric energy meter of type is managed concentratedly, effective reduction Utilities Electric Co. is to different brands in region, the difficulty of type electric 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 (8)
1. an IC-card intelligent electric energy meter information security management module, it is characterized in that: 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 communicates with the unique data of IC card information Switching Module for performing IC-card intelligent electric energy 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 is for performing the data communication between processor and IC-card intelligent electric energy meter terminal master controller, and described IC-card intelligent electric 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 for selling power 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 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 intelligent electric 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 intelligent electric energy meter terminal master controller transmit operation instruction; Otherwise then abandon pre-processed results or make caching process.
2. IC-card intelligent electric energy meter 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 the subsystem of information security management module classification different from management system for selling power respectively carries out exchanges data, processor according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus the identity of certification management system for selling power, 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.
3. IC-card intelligent electric energy meter 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 intelligent electric energy meter terminal master controller, and processor is to the pre-processed results of affairs in external data.
4. IC-card intelligent electric energy meter 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. IC-card intelligent electric energy meter information security management module according to claim 1, is characterized in that: the first described data-interface is IC-card interface.
6. IC-card intelligent electric energy meter 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. IC-card intelligent electric energy meter 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 the multistage encryption and decryption to information security management module and management system for selling power, IC-card intelligent electric energy meter terminal master controller exchanges data, and the data encryption key that auxiliary processor obtains management system for selling power carries out authentication.
8. IC-card intelligent electric energy meter 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125423.1A CN103236113B (en) | 2013-04-11 | 2013-04-11 | IC-card intelligent electric energy meter information security management module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125423.1A CN103236113B (en) | 2013-04-11 | 2013-04-11 | IC-card intelligent electric energy meter information security management module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103236113A CN103236113A (en) | 2013-08-07 |
| CN103236113B true CN103236113B (en) | 2016-01-20 |
Family
ID=48884151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310125423.1A Active CN103236113B (en) | 2013-04-11 | 2013-04-11 | IC-card intelligent electric energy meter information security management module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103236113B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455358A (en) * | 2013-09-18 | 2013-12-18 | 杭州海兴电力科技股份有限公司 | Upgrading method of electric energy meter program |
| CN110850790A (en) * | 2019-12-09 | 2020-02-28 | 重庆电子工程职业学院 | Intelligent electric energy meter management auxiliary device of thing networking |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063764A (en) * | 2011-01-25 | 2011-05-18 | 邵泽华 | Intelligent gas meter of Internet of things and control system thereof |
| CN102436697A (en) * | 2011-11-08 | 2012-05-02 | 中国电力科学研究院 | Electromobile charging pile control device with safety protection function |
| CN102496209A (en) * | 2011-11-16 | 2012-06-13 | 成都秦川科技发展有限公司 | Intelligent object network heat meter and management system thereof |
| CN102496258A (en) * | 2011-11-16 | 2012-06-13 | 成都秦川科技发展有限公司 | Internet of things based intelligent electric energy meter and management system thereof |
| CN202331761U (en) * | 2011-11-16 | 2012-07-11 | 成都秦川科技发展有限公司 | Intelligent electric energy meter based on Internet of Things |
| CN102592364A (en) * | 2011-12-29 | 2012-07-18 | 中国电力科学研究院 | Encryption and decryption functions based field service terminal and application method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197006B (en) * | 2007-12-19 | 2010-05-19 | 东信和平智能卡股份有限公司 | Smart card and data write-in method |
-
2013
- 2013-04-11 CN CN201310125423.1A patent/CN103236113B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063764A (en) * | 2011-01-25 | 2011-05-18 | 邵泽华 | Intelligent gas meter of Internet of things and control system thereof |
| CN102436697A (en) * | 2011-11-08 | 2012-05-02 | 中国电力科学研究院 | Electromobile charging pile control device with safety protection function |
| CN102496209A (en) * | 2011-11-16 | 2012-06-13 | 成都秦川科技发展有限公司 | Intelligent object network heat meter and management system thereof |
| CN102496258A (en) * | 2011-11-16 | 2012-06-13 | 成都秦川科技发展有限公司 | Internet of things based intelligent electric energy meter and management system thereof |
| CN202331761U (en) * | 2011-11-16 | 2012-07-11 | 成都秦川科技发展有限公司 | Intelligent electric energy meter based on Internet of Things |
| CN102592364A (en) * | 2011-12-29 | 2012-07-18 | 中国电力科学研究院 | Encryption and decryption functions based field service terminal and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103236113A (en) | 2013-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103106744B (en) | Internet of things intelligent gas meter embedded with information security management module | |
| CN103093139B (en) | Integrated circuit (IC) card intelligent gas meter information safety management module | |
| CN103236921B (en) | Intelligent electric energy meter based on Internet of Things information security management module | |
| CN103217952A (en) | Internet of things intelligent water meter provided with information safety management module in embedded mode | |
| CN103220131B (en) | Intelligent gas meter information security management module | |
| CN103220136B (en) | Be embedded with the Intelligent electric energy meter based on Internet of Things of information security management module | |
| CN103218876B (en) | Information security management module of remote control intelligent electric energy meter | |
| CN103152166B (en) | Remote-control intelligent water meter information security management module | |
| CN103198574B (en) | Be embedded with the remote-control intelligent water meter of information security management module | |
| CN203151543U (en) | IC card intelligent water meter embedded with information security management module | |
| CN103198573B (en) | Information safety management module for intelligent IC card water meter | |
| CN103236113B (en) | IC-card intelligent electric energy meter information security management module | |
| CN103200570B (en) | Intelligent water meter of Internet of things information security management module | |
| CN104537768A (en) | Information security management module of IC (integrated circuit) card intelligent heat energy meter | |
| CN203219496U (en) | Internet of Things intelligent ammeter embedded with information security management module | |
| CN203219310U (en) | Information security management module for intelligent ammeter of Internet of Things | |
| CN103152175B (en) | Remote-control intelligent gas meter information security management module | |
| CN203104485U (en) | Internet of things intelligent gas meter information security management module | |
| CN103218875B (en) | Integrated circuit (IC) card intelligent electric energy meter embedded with information safety management module | |
| CN103199993B (en) | Be embedded with the IC-card intellectual water meter of information security management module | |
| CN103106745B (en) | Integrated circuit (IC) card intelligent gas meter embedded with information security management module | |
| CN104581717A (en) | Information security management module of Internet-of-things intelligent heat meter | |
| CN103152176B (en) | Intelligent gas meter information security management module of internet of things | |
| CN103325183A (en) | IC card intelligent heat meter information security management module | |
| CN103220132B (en) | There is the intelligent gas meter of information security management function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 IOT TECHNOLOGY Co.,Ltd. Address before: 610000 Longquanyi, Sichuan Province Industrial Park licensing Patentee before: CHENGDU QINCHUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220928 Address after: South District, Ganmei Industrial Park, Dongpo District, Meishan City, Sichuan Province, 610000 Patentee after: Meishan Qinchuan Intelligent Sensor Co.,Ltd. Address before: 610000, Longquanyi District, Sichuan province Chengdu boundary brand industrial park Patentee before: CHENGDU QINCHUAN IOT TECHNOLOGY Co.,Ltd. |