CN203104485U - Internet of things intelligent gas meter information security management module - Google Patents
Internet of things intelligent gas meter information security management module Download PDFInfo
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- CN203104485U CN203104485U CN 201320056458 CN201320056458U CN203104485U CN 203104485 U CN203104485 U CN 203104485U CN 201320056458 CN201320056458 CN 201320056458 CN 201320056458 U CN201320056458 U CN 201320056458U CN 203104485 U CN203104485 U CN 203104485U
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Abstract
The utility model discloses an internet of things intelligent gas meter information security management module, belonging to an internet of things intelligent gas meter management auxiliary device. The information security management module comprises a processor, a first data interface, a second data interface and a FLASH memory. The processor is respectively connected to the first data interface, the second data interface and the FLASH memory. The information security management module carries out identity authentication when an internet of things remote control terminal carries out data exchange, the legitimacy of communication between them is ensured, and an internet of things intelligent gas meter terminal main controller can carry out communication with the outside only through the information security management module. At the same time, the module has a simple structure and can be embedded into various types of internet of things intelligent gas meters, the module is compatible with the internet of things intelligent gas meter terminal main controller through a variety of communication transmission technology and bus interfaces and is accessed to a gas management system in a seamless way, the distributed manufacturing of internet of things intelligent gas meters is realized, the unified management is achieved, and the scope of application of the module is wide.
Description
Technical field
The utility model relates to a kind of Internet of Things intelligent gas meter management aid, and in particular, the utility model relates generally to a kind of Internet of Things intelligent gas meter information security management module.
Background technology
The Internet of Things intelligent gas meter need use telecommunication technique and technology of Internet of things, makes gas meter, flow meter become a terminal equipment, gas meter, flow meter real-time online and the internet exchange message of the Internet.The communication path of Internet of Things intelligent gas meter and its total management system is: data by the Internet network, arrive Internet of Things intelligent gas meter total management system by the upper strata multistage communication device.Because all there are the safety of data transmission problem in telecommunication technique and technology of Internet of things, so there is great risk in the information security management of Internet of Things intelligent gas meter.Use telecommunication equipment, data may make a mistake, and also may suffer artificial modification, cause the Internet of Things intelligent gas meter out of control, and the gas management system that sells that causes the user can break away from natural gas companies arbitrarily uses gas.Use the Internet network, Internet Server is under attack easily, and under the unwitting situation of Internet of Things intelligent gas meter user, information is read and distorts; The disabled user forges duplicate networking intelligent gas meter equipment identities, assumes another's name to be input to and sells in the gas management system, can revise data, steals tolerance, makes gas company suffer economic loss.
The Internet of Things intelligent gas meter is sold in the gas management system, there is number of ways can realize Internet of Things intelligent gas meter and the exchanges data of selling the gas system, the grid complexity, all there are uncertain risk factors in each link, if any there not being active data effect means, the fail safe of exchanges data will can not get guaranteeing that the user can steal tolerance by multiple means, makes gas company suffer economic loss.
As can be seen from the above, there are too many risk factors in the Internet of Things intelligent gas meter in safety management, these risk factors cause the economic loss of gas company, therefore need a kind of safety management servicing unit, realize the information security management of Internet of Things intelligent gas meter total management system.
The utility model content
One of the purpose of this utility model is at above-mentioned deficiency, a kind of Internet of Things intelligent gas meter information security management module is provided, information security management with various types of Internet of Things intelligent gas meters and management system thereof in the expectation solution prior art can not get problems such as assurance, thereby eliminates the risk of information security management in the gas company operation.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of Internet of Things intelligent gas meter information security management module provided by the utility model, described information security management module comprises processor, first data-interface, second data-interface and FLASH memory, described processor inserts first data-interface, second data-interface and FLASH memory respectively, wherein:
Described first data-interface is used to carry out the Internet of Things intelligent gas meter communicates by letter with the unique data of data transmission module, and transmits it to processor when coming from the external data that data transmission module receives from Internet of Things receiving;
Described FLASH memory is used for the control and the documentor of stored information safety management module;
Described second data-interface is used to carry out the data communication between processor and the Internet of Things intelligent gas meter terminal master controller, and described Internet of Things intelligent gas meter terminal master controller is used for carrying out the operation of corresponding table end according to the instruction of processor;
Described processor is used for when receiving the external data that comes from first data-interface, the Internet of Things remote control terminal that sends external data is carried out authentication, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by second data-interface to Internet of Things intelligent gas meter terminal master controller according to the affairs that comprise in the data.
As preferably, further technical scheme is: described processor is used for when receiving the external data that comes from first data-interface, according to external data the Internet of Things remote control terminal is carried out authentication, when authentication result is judged as when 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, the affairs that comprise in the data are carried out preliminary treatment, and from Internet of Things intelligent gas meter terminal master controller, obtain corresponding return information by second data-interface, described return information is encrypted the back return to data transmission module by first data-interface, after effectively being confirmed, then the preliminary treatment result is approved and stored relevant operation information, and instructed to the transmit operation of Internet of Things intelligent gas meter terminal master controller; Otherwise then abandon the preliminary treatment result or make caching process.
Further technical scheme is: preset protocols limit condition and a plurality of different cipher key procedures in the described FLASH memory, be used in the information security management module respectively when different Internet of Things remote control terminal carries out exchanges data, processor is compared according to a plurality of cipher key procedures that preset in the encryption key of external data and the FLASH memory, thereby the identity of authentication Internet of Things remote control terminal, and after encrypted packets deciphering and completeness check pass through, according to the validity of protocols limit condition verification msg under current identity, judge whether the affairs in the data are carried out preliminary treatment;
Described first data-interface also inserts the IC-card information exchange module, be used for transmitting it to when receiving the external data that comes from the IC-card information exchange module processor, processor is carried out the verification identical with the external data that comes from data transmission module to described external data.
Further technical scheme is: also comprise eeprom memory in the described information security management module, described eeprom memory also inserts processor, be used for the associative operation information of storage of processor, and processor is to the preliminary treatment result of affairs in the external data to Internet of Things intelligent gas meter terminal master controller.
Further technical scheme is: described processor is for carrying out the central processing unit or the single-chip microcomputer of cryptographic algorithm; Described data transmission module is network communication module or bus communication module.
Further technical scheme is: described first data-interface is network communication interface or bus interface.
Further technical scheme is: described network communication interface is at least any one in the middle of RF module interface, Z i gbee module interface, WiFi module interface, bluetooth module interface or Optical Fiber Transmission interface, data wire coffret, the power line transmission interface; Described bus interface is at least any one in the middle of the Mbus bus interface, RS485 bus interface, CAN bus interface.
Further technical scheme is: described second data-interface is at least any one in the middle of USART serial line interface, SP I serial line interface or the I2C serial line interface.
Further technical scheme is: described information security management module also comprises encrypting module, described encrypting module inserts processor, be used for multistage encryption and decryption, and the data encryption key that auxiliary processor obtains the Internet of Things remote control terminal carries out authentication to information security management module and Internet of Things remote control terminal, Internet of Things intelligent gas meter terminal master controller exchanges data.
Further technical scheme is: described encrypting module carries out data encrypting and deciphering by the mode of AES or 3DES.
Compared with prior art, one of the beneficial effects of the utility model are: the information security management module is carried out authentication when carrying out exchanges data by data transmission module and Internet of Things remote control terminal, guaranteed the legitimacy of both communication, Internet of Things intelligent gas meter terminal master controller must could communicate with the outside by the information security management module; Utilize different keys can realize the authority setting of gas company differentiated control, and adopt 3DES/AES multi-level encryption mode, make that the fail safe of key is higher, and upgrading key can download cause for gossip by the program on the information security management module time, avoid key to leak the risk of being brought; By built-in data verifying program, guarantee that the data of transmission are true, accurate, complete.A kind of Internet of Things intelligent gas meter information security management modular structure provided by the utility model is simple simultaneously, can embed in various types of Internet of Things intelligent gas meters, by multiple communication transmission technology and the compatible Internet of Things intelligent gas of bus interface meter terminal master controller, there is no and sew up into the civil gas management system, realize that the Internet of Things intelligent gas meter disperses to make, unified management, range of application is wide, and guarantee the independence of gas company in gas meter, flow meter control, and be not subjected to extraneous restriction.
Description of drawings
Fig. 1 is the information security management modular structure block diagram that is used for illustrating the utility model embodiment;
Fig. 2 is the information security management module application block diagram that is used for illustrating the utility model embodiment;
Fig. 3 is the management system block diagram that is used for illustrating the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
With reference to shown in Figure 1, an embodiment of the present utility model is a kind of Internet of Things intelligent gas meter information security management module, described information security management module comprises processor, first data-interface, second data-interface and FLASH memory, described processor inserts first data-interface, second data-interface and FLASH memory respectively, wherein:
The effect of above-mentioned first data-interface is to carry out the Internet of Things intelligent gas meter to communicate by letter with the unique data of data transmission module, and transmits it to processor when coming from the external data that data transmission module receives from Internet of Things receiving;
The effect of above-mentioned FLASH memory is control and the documentor in the stored information safety management module;
With reference to shown in Figure 2, the effect of above-mentioned second data-interface is the data communication of carrying out between processor and the Internet of Things intelligent gas meter terminal master controller, and the effect of Internet of Things intelligent gas meter terminal master controller is to carry out the operation of respective table end according to the instruction of processor;
The effect of above-mentioned processor is when receiving the external data that comes from first data-interface, the Internet of Things remote control terminal that sends external data is carried out authentication, judge whether to obtain encrypted packets in this external data, and send corresponding operational order by second data-interface to Internet of Things intelligent gas meter terminal master controller according to the affairs that comprise in the data.
According to above-mentioned technical scheme as can be known, the technical problem that present embodiment solved is the information security management module by above-mentioned composition structure, carry out data forwarding between multistage transmission equipment in Internet of Things intelligent gas meter terminal master controller and Internet of Things, the Internet of Things remote control terminal, and when transmitting, authenticated and encryption and decryption, thereby cooperate gas company that the intelligent gas meter of terminal is managed, to eliminate the risk of information security management in the gas company operation.
And the Oscillator module shown in Fig. 1 and pin XIN, XOUT provide clock signal to the information security management module; The RAM memory is used for the operating ephemeral data of memory module; VCC and VSS two pins provide working power for the information security management module, and this power supply should be a continued power and can not being provided by Internet of Things intelligent gas meter terminal master controller pin.
Again with reference to shown in Figure 1, be used for the embodiment that the technical solution problem is more preferably at the utility model, the concrete mode of a kind of above-mentioned processor to authentication of Internet of Things remote control terminal and affairs execution is provided, promptly when processor receives the external data that comes from first data-interface, according to external data the Internet of Things remote control terminal is carried out authentication, when authentication result is judged as when 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, the affairs that comprise in the data are carried out preliminary treatment, and from Internet of Things intelligent gas meter terminal master controller, obtain corresponding return information by second data-interface, described return information is encrypted the back return to data transmission module by first data-interface, after effectively being confirmed, then the preliminary treatment result is approved and stored relevant operation information, and instructed to the transmit operation of Internet of Things intelligent gas meter terminal master controller; Otherwise then abandon the preliminary treatment result or make caching process, promptly do not receive the affirmation result of data transmission module in the predefined time, for example do not receive the affirmation information of data transmission module in three minutes, initial condition then resets; Aforesaid caching process is meant keeps in the preliminary treatment object command, when processor is waken up and receives the affirmation information of data transmission module once more, then instructs to the transmit operation of Internet of Things intelligent gas meter terminal master controller in the same way.
The affairs from the authentication of Internet of Things remote control terminal to external data of external data in the present embodiment have also been comprised in the above-mentioned technical scheme by the performed whole flow process of processor, by the program setting of above-mentioned flow process, further strengthened in the information security management module receiving the fail safe of information and executing.And the above-mentioned processor reset initial condition of repeatedly mentioning, be the state of resetting processor before carrying out above-mentioned any one operation, for example to carry out the state of authentication before receiving external data be resting state to processor, when receiving that external data is waken up by resting state, but the authentication of Internet of Things remote control terminal is judged as when illegal, processor then recovers resting state, do not carry out any operation, the situation of processor reset also substantially as hereinbefore in other step, when authentication failed, processor can be stored operation note.The above-mentioned Internet of Things remote control terminal of mentioning is various communication object in the Internet of Things simultaneously, and different communication objects finally is connected to the gas management system that sells.
And it is same, in another embodiment of the present utility model, for realizing the information security management module being managed by different rights, need in above-mentioned FLASH memory, to preset protocols limit condition and a plurality of different cipher key procedures, it act as in the information security management module respectively when different Internet of Things remote control terminal carries out exchanges data, processor is compared according to a plurality of cipher key procedures that preset in the encryption key of external data and the FLASH memory, thereby the identity of authentication Internet of Things remote control terminal, and after encrypted packets deciphering and completeness check pass through, according to the validity of protocols limit condition verification msg under current identity, judge whether the affairs in the data are carried out preliminary treatment;
With reference to shown in Figure 2, for satisfying at present the inner structure of Internet of Things gas meter, flow meter mostly, above-mentioned first data-interface also inserts the IC-card information exchange module, be used for transmitting it to when receiving the external data that comes from the IC-card information exchange module processor, processor is carried out the verification identical with the external data that comes from data transmission module to described external data.
According to another embodiment of the present utility model, mention as above-mentioned, buffer memory for ease of processor preliminary treatment result, in the information security management module, also relatively independent eeprom memory can be set, and eeprom memory also inserted processor, be used for the associative operation information of storage of processor to Internet of Things intelligent gas meter terminal master controller, processor is to the preliminary treatment result of affairs in the external data, and the failure record of processor checking, and in the FLASH memory, also be provided with other program that to be utilized by processor, after in a single day be processor be stored in the eeprom memory to the associative operation information of Internet of Things intelligent gas meter terminal master controller, with unsuppressible-suppression and modification, so that make the running status of information security management module stay complete record.
With reference to shown in Figure 2, Internet of Things intelligent gas meter information security management module in the foregoing description in actual applications, insert between Internet of Things intelligent gas meter terminal master controller and the data transmission module, and the internal structure of gas meter, flow meter and existing Internet of Things intelligent gas meter are as good as, its master controller is cut-in valve control module respectively, display module and counting module, master controller is according to the operational order control valve control module of information security management module, and will measure numerical value accordingly and in display module, show, and according to aforesaid principle, this Internet of Things intelligent gas meter information security management module can directly integratedly be applied in the conventional Internet of Things intelligent gas meter, pass through data acquisition unit, upper strata multistage communication device and the networkings of Internet of Things remote control terminal constituent such as data concentrator, multistage dividing data zone, and then, guarantee the stability of signal transmission in the Internet of Things by carrying out the signal distribution and integrate in the Internet; And in addition, the improvement of going back adaptability is applied to other carries out telemanagement by electronic information metering device.
The processor that the foregoing description is mentioned is the core of information security management module, be used to carry out corresponding program and data encryption, in another embodiment of the present utility model, above-mentioned processor is for directly adopting central processing unit or the single-chip microcomputer that can carry out cryptographic algorithm in the prior art, for example EFM32 etc.
Based on data communication mode required in the foregoing description, the inventor is with reference to prior art, selected for use the transmission technology of part in the prior art to realize communicating by letter between processor and the interface, wherein data transmission module can adopt network communication module or bus communication module, and corresponding with aforesaid data transmission module, be used for carrying out unique first data-interface of communicating by letter in the foregoing description and can adopt network communication interface or bus interface with data transmission module.
Further, above-mentioned network communication interface can adopt wireless or wired form, radio network interface can adopt one or more in the middle of RF module interface, Zigbee module interface, WiFi module interface and the bluetooth module interface, and wired network interface can adopt one or more in the middle of Optical Fiber Transmission interface, data wire coffret and the power line transmission interface; In the middle of the above-mentioned bus interface Mbus bus interface, RS485 bus interface, CAN bus interface one or more.
And it is corresponding, second data-interface that processor and Internet of Things intelligent gas meter terminal master controller communicate in the foregoing description preferably is complementary with conventional master controller, serial line interfaces such as USART interface, SPI interface or I2C interface for example, with increase the information security management module integrated with intelligent gas meter on compatibility.
Again with reference to shown in Figure 1, fail safe for data encryption and solution in the administration module that further ensures information security, be preferably in its inside independently encrypting module is set, and with this independently encrypting module insert processor, be used for information security management module and Internet of Things remote control terminal, the multistage encryption and decryption of Internet of Things intelligent gas meter terminal master controller exchanges data, and the data encryption key that auxiliary processor obtains the Internet of Things remote control terminal carries out authentication, and with reference to the higher cipher mode of fail safe in the prior art, the preferred Advanced Encryption Standard that adopts in the AES(cryptography, the abbreviation of English Advanced Encrypt ion Standard) or the triple DEAs of 3DES(, English Triple Data Encryption Algorithm) data of coming and going in the information security management module are carried out encryption and decryption.
Again with reference to shown in Figure 3, after the integrated above-mentioned information security management module of Internet of Things intelligent gas meter that a plurality of different vendors produce, outside all communication datas of gas meter, flow meter are all by transmitting after the information security management module encryption and decryption, and the internal processes of information security management module is unique, therefore selling the gas management system can be considered as terminal with the information security management module, by Internet of Things management intelligent gas meter, promptly sell the gas management system compatible various brands with one, the intelligent gas meter of type is managed concentratedly, effectively reduces gas company to different brands in the zone, the difficulty of the intelligent gas meter integration management of type.As shown in Figure 3, the Internet of Things intelligent gas meter with the exchanges data path of selling the gas management system is: data by Internet network (the Internet), arrive the gas management system that sells by the upper strata multistage communication device.And table end equipment user is by Internet access to netwoks intelligent gas meter total management system.
Except that above-mentioned, " embodiment ", " another embodiment " that also need to prove in this manual to be spoken of, " embodiment " etc. refer to concrete feature, structure or the characteristics described in conjunction with this embodiment and are included among at least one embodiment that the application's generality describes.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in specification.Furthermore, when describing a concrete feature, structure or characteristics in conjunction with arbitrary embodiment, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also drop in the scope of the present utility model.
Although with reference to a plurality of explanatory embodiment of the present utility model the utility model is described here, but, should be appreciated that, those skilled in the art can design a lot of other modification and execution modes, and these are revised and execution mode will drop within the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open and claim, can carry out multiple modification and improvement to the building block and/or the layout of subject combination layout in the application.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes also will be tangible.
Claims (10)
1. Internet of Things intelligent gas meter information security management module, it is characterized in that: described information security management module comprises processor, first data-interface, second data-interface and FLASH memory, described processor inserts first data-interface, second data-interface and FLASH memory respectively, wherein:
Described first data-interface is used to carry out the Internet of Things intelligent gas meter communicates by letter with the unique data of data transmission module, and transmits it to processor when coming from the external data that data transmission module receives from Internet of Things receiving;
Described FLASH memory is used for the control and the documentor of stored information safety management module;
Described second data-interface is used to carry out the data communication between processor and the Internet of Things intelligent gas meter terminal master controller, and described Internet of Things intelligent gas meter terminal master controller is used for carrying out the operation of corresponding table end according to the instruction of processor;
Described processor is used for when receiving the external data that comes from first data-interface, the Internet of Things remote control terminal that sends external data is carried out authentication, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by second data-interface to Internet of Things intelligent gas meter terminal master controller according to the affairs that comprise in the data.
2. Internet of Things intelligent gas meter information security management module according to claim 1, it is characterized in that: described processor is used for when receiving the external data that comes from first data-interface, according to external data the Internet of Things remote control terminal is carried out authentication, when authentication result is judged as when 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, the affairs that comprise in the data are carried out preliminary treatment, and from Internet of Things intelligent gas meter terminal master controller, obtain corresponding return information by second data-interface, described return information is encrypted the back return to data transmission module by first data-interface, after effectively being confirmed, then the preliminary treatment result is approved and stored relevant operation information, and instructed to the transmit operation of Internet of Things intelligent gas meter terminal master controller; Otherwise then abandon the preliminary treatment result or make caching process.
3. Internet of Things intelligent gas meter information security management module according to claim 1 and 2, it is characterized in that: preset protocols limit condition and a plurality of different cipher key procedures in the described FLASH memory, be used in the information security management module respectively when different Internet of Things remote control terminal carries out exchanges data, processor is compared according to a plurality of cipher key procedures that preset in the encryption key of external data and the FLASH memory, thereby the identity of authentication Internet of Things remote control terminal, and after encrypted packets deciphering and completeness check pass through, according to the validity of protocols limit condition verification msg under current identity, judge whether the affairs in the data are carried out preliminary treatment;
Described first data-interface also inserts the IC-card information exchange module, be used for transmitting it to when receiving the external data that comes from the IC-card information exchange module processor, processor is carried out the verification identical with the external data that comes from data transmission module to described external data.
4. Internet of Things intelligent gas meter information security management module according to claim 1 and 2, it is characterized in that: also comprise eeprom memory in the described information security management module, described eeprom memory also inserts processor, be used for the associative operation information of storage of processor, and processor is to the preliminary treatment result of affairs in the external data to Internet of Things intelligent gas meter terminal master controller.
5. Internet of Things intelligent gas meter information security management module according to claim 1 and 2 is characterized in that: described processor is for carrying out the central processing unit or the single-chip microcomputer of cryptographic algorithm; Described data transmission module is network communication module or bus communication module.
6. Internet of Things intelligent gas meter information security management module according to claim 1 and 2, it is characterized in that: described first data-interface is network communication interface or bus interface.
7. Internet of Things intelligent gas meter information security management module according to claim 6 is characterized in that: described network communication interface is at least any one in the middle of RF module interface, Zigbee module interface, WiFi module interface, bluetooth module interface or Optical Fiber Transmission interface, data wire coffret, the power line transmission interface; Described bus interface is at least any one in the middle of the Mbus bus interface, RS485 bus interface, CAN bus interface.
8. Internet of Things intelligent gas meter information security management module according to claim 1 and 2 is characterized in that: described second data-interface is at least any one in the middle of USART serial line interface, SPI serial line interface or the I2C serial line interface.
9. Internet of Things intelligent gas meter 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 inserts processor, be used for multistage encryption and decryption, and the data encryption key that auxiliary processor obtains the Internet of Things remote control terminal carries out authentication to information security management module and Internet of Things remote control terminal, Internet of Things intelligent gas meter terminal master controller exchanges data.
10. Internet of Things intelligent gas meter information security management module according to claim 9, it is characterized in that: described encrypting module carries out data encrypting and deciphering by the mode of AES or 3DES.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320056458 CN203104485U (en) | 2013-01-31 | 2013-01-31 | Internet of things intelligent gas meter information security management module |
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| CN 201320056458 CN203104485U (en) | 2013-01-31 | 2013-01-31 | Internet of things intelligent gas meter information security management module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152176A (en) * | 2013-01-31 | 2013-06-12 | 成都秦川科技发展有限公司 | Intelligent gas meter information security management module of internet of things |
| CN108831034A (en) * | 2018-05-29 | 2018-11-16 | 昆明金质先锋智能仪表有限公司 | A kind of Intelligent gas meter based on internet of things and its management system |
-
2013
- 2013-01-31 CN CN 201320056458 patent/CN203104485U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152176A (en) * | 2013-01-31 | 2013-06-12 | 成都秦川科技发展有限公司 | Intelligent gas meter information security management module of internet of things |
| CN103152176B (en) * | 2013-01-31 | 2015-06-24 | 成都秦川科技发展有限公司 | Intelligent gas meter information security management module of internet of things |
| CN108831034A (en) * | 2018-05-29 | 2018-11-16 | 昆明金质先锋智能仪表有限公司 | A kind of Intelligent gas meter based on internet of things and its management system |
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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. |
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Granted publication date: 20130731 |