CN203151543U - IC card intelligent water meter embedded with information security management module - Google Patents
IC card intelligent water meter embedded with information security management module Download PDFInfo
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- CN203151543U CN203151543U CN 201320126245 CN201320126245U CN203151543U CN 203151543 U CN203151543 U CN 203151543U CN 201320126245 CN201320126245 CN 201320126245 CN 201320126245 U CN201320126245 U CN 201320126245U CN 203151543 U CN203151543 U CN 203151543U
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Abstract
The utility model discloses an IC card intelligent water meter embedded with an information security management module. The IC card intelligent water meter comprises the information security management module which comprises a processor, a first data interface, a second data interface and an FLASH memory. The processor is respectively connected with the first data interface, the second interface and the FLASH memory. The identity authentication is carried out when the information security management module carries out data exchange with a water sale management system through an IC card reading module, the legitimacy of communication between them is ensured, and an IC card intelligent water meter terminal main controller can carry out communication with the outside only through the information security management module. By using different keys, the permission setting of tap water company classification management can be realized, a 3DES/AES multilevel encryption mode is employed, the keys are updated in real time through a program download port on the information security management module, and the risk brought by the leakage of the keys is avoided. At the same time, the independence of a tap water company in terminal water meter control can be ensured, and the tap water company is not restricted by the outside.
Description
Technical field
The utility model relates to a kind of intellectual water meter, and in particular, the utility model relates generally to a kind of IC-card intellectual water meter that is embedded with the information security management module.
Background technology
In recent years, along with the continuous development of electronic technology, and obtained widely using at the IC-card intellectual water meter, occurred the IC-card intellectual water meter of multiple brand on the market.Running-water Company uses and management for convenience, begins to adopt the IC-card intellectual water meter, and makes up the management system of oneself on this basis.Because same Running-water Company may adopt the IC-card intellectual water meter of multiple brand, each manufacturer is grasping the management method of IC-card intellectual water meter separately, different brands IC-card intellectual water meter uses different management systems, operating equipment, transmission medium, the management password, mode of operation, cause each Running-water Company not have the control of IC-card intellectual water meter technically, the IC-card intellectual water meter can break away from the management system of Running-water Company, information is revised arbitrarily, the use state is controlled, specific certain user or a plurality of user need not be paid just can use running water, Running-water Company exists IC-card intellectual water meter risk out of control.
Each IC-card intellectual water meter manufacturer is in safe practice, level on the Data Interchange Technology is uneven, Kai Fa control and management technology and management system are also inequality separately, also can't meet the demands on the security guarantee, cause portioned product in the fail safe of information management, there is risk on the reliability of information exchange, encrypt, decryption technology is used unreasonable, cause the disabled user can be by corresponding technological means, the data of obtaining in the transmission medium are analyzed, decode cryptographic algorithm and data protocol, thereby write out the program that corresponding cooperation IC-card intellectual water meter uses, the management system that breaks away from Running-water Company is sold running water arbitrarily, and Running-water Company exists IC-card intellectual water meter and management system risk simultaneously out of control.Therefore be necessary at the problems referred to above, existing IC-card intellectual water meter is done further improvement, realize information security management.
The utility model content
One of the purpose of this utility model is at above-mentioned deficiency, a kind of IC-card intellectual water meter that is embedded with the information security management module is provided, the information security management that solves IC-card intellectual water meter of the prior art and management system thereof with expectation can not get problems such as assurance, eliminates the risk of information security management in Running-water Company's operation.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of IC-card intellectual water meter that is embedded with the information security management module provided by the utility model, comprise valve module, IC-card reading meter terminal master controller, measuring water flow device, memory, described measuring water flow device inserts water source entrance and the IC-card reading meter terminal master controller on the IC-card intellectual water meter respectively, be used for discharge is measured, and export variable to IC-card reading meter terminal master controller; The water source entrance and the water source that insert respectively on the IC-card intellectual water meter that described valve module is direct or indirect export, and by valve module control circuit access IC-card reading meter terminal master controller, be used for opening and turn-offing by IC-card reading meter terminal main controller controls valve module; Described memory also inserts IC-card reading meter terminal master controller, also comprise the information security management module in the described IC-card intellectual water meter, 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 inserts the IC-card information exchange module, is used for carrying out the IC-card intellectual water meter and communicates by letter with the unique data of IC-card information exchange module, and transmit it to processor when receiving the external data that comes from the IC-card information exchange module;
Described FLASH memory is used for control and the documentor of storage information security management module;
Described second data-interface inserts IC-card reading meter terminal master controller, be used for carrying out the data communication between processor and the IC-card reading meter terminal master controller, described IC-card reading 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 water management system of selling that writes 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 IC-card reading 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 water management system of selling that writes external data 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 IC-card reading meter terminal master controller, obtain corresponding return information by second data-interface, described return information is encrypted the back return to the IC-card information exchange 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 IC-card reading 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 for when the information security management module is carried out exchanges data with the subsystem of selling the different classifications of water management system respectively, 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 that water management system is sold in authentication, 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.
Further technical scheme is: also comprise eeprom memory in the described information security management module, described eeprom memory also inserts processor, be used for storage of processor to the associative operation information of IC-card reading meter terminal master controller, and processor is to the preliminary treatment result of affairs in the external data.
Further technical scheme is: described processor is for carrying out central processing unit or the single-chip microcomputer of cryptographic algorithm.
Further technical scheme is: described first data-interface is the IC-card interface.
Further technical scheme is: 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.
Further technical scheme is: described information security management module also comprises encrypting module, described encrypting module inserts processor, be used for information security management module and the multistage encryption and decryption of selling water management system, IC-card reading meter terminal master controller exchanges data, and auxiliary processor obtains the data encryption key of selling water management system and carries out authentication.
Further technical scheme is: described encrypting module is by the Advanced Encryption Standard in the AES(cryptography, the abbreviation of English Advanced Encryption Standard) or the triple DEAs of 3DES(, mode English Triple Data Encryption Algorithm) is carried out data encrypting and deciphering.
Further technical scheme is: described memory is used for the presell water yield data message that storage comes from the information security management module forwards, and described IC-card reading meter terminal master controller also is connected with LCDs by liquid crystal display circuit, be used for by IC-card reading meter terminal master controller the presell water yield data message of water ga(u)ge magnitude information and memory being handled, and present in LCDs by liquid crystal display circuit.
Compared with prior art, one of the beneficial effects of the utility model are: by embed the information security management module in the IC-card intellectual water meter, make it carry out authentication by the IC-card information exchange module when water management system carries out exchanges data with selling, guaranteed the legitimacy of both communication, IC-card reading 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 Running-water Company's 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 bringing; By built-in data verifying program, guarantee that the data of transmission are true, accurate, complete.Simultaneously a kind of IC-card intellectual water meter that is embedded with the information security management module provided by the utility model is simple in structure, information security management module by inside can seamless access water supply management system, realize the dispersion manufacturing of IC-card intellectual water meter, unified management, range of application is wide, and guaranteed the independence of Running-water Company in the control of terminal water meter, be not subjected to extraneous restriction.
Description of drawings
Fig. 1 is for being used for the IC-card intellectual water meter structured flowchart of an embodiment of explanation the utility model;
Fig. 2 is for being used for the information security management modular structure block diagram that embodiment of explanation the utility model embeds;
Fig. 3 is for being used for the management system block diagram of explanation the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
With reference to figure 1, shown in Figure 2, an embodiment of the present utility model is a kind of IC-card intellectual water meter that is embedded with the information security management module, comprise valve module, IC-card reading meter terminal master controller, measuring water flow device, memory, described measuring water flow device inserts water source entrance and the IC-card reading meter terminal master controller on the IC-card intellectual water meter respectively, be used for discharge is measured, and export variable to IC-card reading meter terminal master controller; The water source entrance and the water source that insert respectively on the IC-card intellectual water meter that described valve module is direct or indirect export, and by valve module control circuit access IC-card reading meter terminal master controller, be used for opening and turn-offing by IC-card reading meter terminal main controller controls valve module; Described memory also inserts IC-card reading meter terminal master controller; Unlike the prior art be, also comprise the information security management module in the described IC-card intellectual water meter, 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:
Above-mentioned first data-interface inserts the IC-card information exchange module, and its effect is to carry out the IC-card intellectual water meter to communicate by letter with the unique data of IC-card information exchange module, and transmits it to processor when receiving the external data that comes from the IC-card information exchange module;
The effect of above-mentioned FLASH memory is control and the documentor in the storage information security management module;
Above-mentioned second data-interface inserts IC-card reading meter terminal master controller, its effect is the data communication of carrying out between processor and the IC-card reading meter terminal master controller, and the effect of IC-card reading 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 water management system of selling that writes 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 IC-card reading 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 solves is the information security management module by above-mentioned composition structure, at IC-card reading meter terminal master controller and sell and carry out data between the water management system and transmit, and when transmitting, authenticated and encryption and decryption, thereby cooperate Running-water Company that the IC-card intellectual water meter of terminal is managed, to eliminate the risk of information security management in Running-water Company's operation.
And the information security management module of the Oscillator module shown in Fig. 1 and pin XIN, XOUT provides clock signal; 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 continued power and can not being provided by IC-card reading meter terminal master controller pin.And go out as shown in Figure 2, the memory of above-mentioned access IC-card reading meter terminal master controller preferably adopts eeprom memory in the present embodiment.
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, provide a kind of above-mentioned processor to selling the concrete mode that water management system authentication and affairs are carried out, namely when processor receives the external data that comes from first data-interface, carry out authentication according to external data to selling water management system, 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 IC-card reading meter terminal master controller, obtain corresponding return information by second data-interface, described return information is encrypted the back return to the IC-card information exchange 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 IC-card reading meter terminal master controller; Otherwise then abandon the preliminary treatment result or make caching process, namely do not receive the affirmation result of IC-card information exchange module in the predefined time, for example do not receive the affirmation information of IC-card information exchange module in three minutes, initial condition then resets; Aforesaid caching process refers to the preliminary treatment object command is kept in, and when processor is waken up and receives the affirmation information of IC-card information exchange module again, then instructs to the transmit operation of IC-card reading meter terminal master controller in the same way.
Comprised in the above-mentioned technical scheme external data in the present embodiment from sell the water management system authentication to wherein affairs 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 selling water management system 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 simultaneously above-mentioned water management system of mentioning of selling can be the terminal water meter management system that Running-water Company is set up in actual applications.
And it is same, in another embodiment of the present utility model, for realizing the information security management module in the terminal IC-card intellectual water meter being managed by different rights, need in above-mentioned FLASH memory, to preset protocols limit condition and a plurality of different cipher key procedures, its act as the information security management module respectively with sell water management system in the subsystem of different classifications when carrying 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 that water management system is sold in authentication, 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.
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 storage of processor to the associative operation information of IC-card reading 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 IC-card reading meter terminal master controller, with unsuppressible-suppression and modification, in order to make the running status of information security management module stay complete record.
In the IC-card intellectual water meter practical application that is embedded with the information security management module in above-described embodiment, be as good as with existing IC-card intellectual water meter, measure user's water consumption by flow measurement device, and water consumption is delivered to IC-card reading meter terminal master controller, the best access flow measurement mechanism of described valve module rear end, namely insert the running water input port indirectly, the output termination running water delivery outlet of valve module, IC-card reading meter terminal master controller carries out the switch valve operation by the valve module control circuit to valve module;
Above-mentioned memory is used for the presell water yield data message that storage comes from the information security management module forwards, IC-card reading meter terminal master controller is handled the presell water yield data message in water ga(u)ge magnitude information and the memory, and pass to display by display circuit, display shows relevant informations such as water consumption and surplus water, all swap datas of selling water management system and IC-card intellectual water meter all must arrive IC-card reading meter terminal master controller through the information security management module, IC-card reading meter terminal master controller is according to the instruction that receives, finish corresponding operation, for example when the remaining sum of supplementing with money in the subscriber's meter is used up, IC-card reading meter terminal master controller is finished the shutoff action of valve module by the valve module control circuit, and then stops to supply water.
The core of the information security management module that above-described embodiment is mentioned is processor, be used for carrying 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 or have ready-made cryptographic algorithm, for example EFM32 etc.
Based on data communication mode required in above-described embodiment, the inventor is with reference to prior art, and what be used in above-described embodiment carrying out that unique first data-interface of communicating by letter adopts with the IC-card information exchange module is the IC-card interface.
And it is corresponding, second data-interface that processor and IC-card reading meter terminal master controller communicate in above-described embodiment 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 the IC-card intellectual water meter on compatibility.
Again with reference to shown in Figure 1, fail safe for data encryption and solution in the information security management module in the further assurance intellectual water meter, be preferably in its inside independently encrypting module is set, and with this independently encrypting module insert processor, be used for to the information security management module with sell water management system, the multistage encryption and decryption of information security management module and IC-card reading meter terminal master controller exchanges data, and auxiliary processor obtains the data encryption key of selling water management system and 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 Encryption 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 IC-card intellectual water meter embeds above-mentioned information security management module, outside all communication datas of intellectual water 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 water management system can be considered as terminal with the information security management module, in order to manage the IC-card intellectual water meter, namely sell water management system compatible various brands with one, the IC-card intellectual water meter of type is managed concentratedly, effectively reduces Running-water Company to different brands in the zone, the difficulty of type water meter integration management.
Except above-mentioned, also need to prove " embodiment ", " another embodiment " that speak of in this manual, " embodiment " etc., refer to concrete feature, structure or the characteristics described in conjunction with this embodiment and be 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 be described with reference to the utility model of a plurality of explanatory embodiment of the present utility model 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 in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.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. IC-card intellectual water meter that is embedded with the information security management module, comprise valve module, IC-card reading meter terminal master controller, measuring water flow device, memory, described measuring water flow device inserts water source entrance and the IC-card reading meter terminal master controller on the IC-card intellectual water meter respectively, be used for discharge is measured, and export variable to IC-card reading meter terminal master controller; The water source entrance and the water source that insert respectively on the IC-card intellectual water meter that described valve module is direct or indirect export, and by valve module control circuit access IC-card reading meter terminal master controller, be used for opening and turn-offing by IC-card reading meter terminal main controller controls valve module; Described memory also inserts IC-card reading meter terminal master controller, it is characterized in that: also comprise the information security management module in the described IC-card intellectual water meter, 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 inserts the IC-card information exchange module, is used for carrying out the IC-card intellectual water meter and communicates by letter with the unique data of IC-card information exchange module, and transmit it to processor when receiving the external data that comes from the IC-card information exchange module;
Described FLASH memory is used for control and the documentor of storage information security management module;
Described second data-interface inserts IC-card reading meter terminal master controller, be used for carrying out the data communication between processor and the IC-card reading meter terminal master controller, described IC-card reading 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 water management system of selling that the subtend IC-card writes external data carries out authentication, judge whether to obtain the encrypted packets in this external data, and send corresponding operational order by second data-interface to IC-card reading meter terminal master controller according to the affairs that comprise in the data.
2. the IC-card intellectual water meter that is embedded with the 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, the water management system of selling that writes external data according to external data subtend IC-card carries 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 IC-card reading meter terminal master controller, obtain corresponding return information by second data-interface, described return information is encrypted the back return to the IC-card information exchange 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 IC-card reading meter terminal master controller; Otherwise then abandon the preliminary treatment result or make caching process.
3. the IC-card intellectual water meter that is embedded with the 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 for when the information security management module is carried out exchanges data with the subsystem of selling the different classifications of water management system respectively, 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 that water management system is sold in authentication, 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.
4. the IC-card intellectual water meter that is embedded with the 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 storage of processor to the associative operation information of IC-card reading meter terminal master controller, and processor is to the preliminary treatment result of affairs in the external data.
5. the IC-card intellectual water meter that is embedded with the information security management module according to claim 1 and 2 is characterized in that: described processor is for carrying out central processing unit or the single-chip microcomputer of cryptographic algorithm.
6. the IC-card intellectual water meter that is embedded with the information security management module according to claim 1 and 2, it is characterized in that: described first data-interface is the IC-card interface.
7. the IC-card intellectual water meter that is embedded with the 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.
8. the IC-card intellectual water meter that is embedded with the 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 information security management module and the multistage encryption and decryption of selling water management system, IC-card reading meter terminal master controller exchanges data, and auxiliary processor obtains the data encryption key of selling water management system and carries out authentication.
9. the IC-card intellectual water meter that is embedded with the information security management module according to claim 8, it 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 water meter that is embedded with the information security management module according to claim 1, it is characterized in that: described memory is used for the presell water yield data message that storage comes from the information security management module forwards, and described IC-card reading meter terminal master controller also is connected with LCDs by liquid crystal display circuit, be used for by IC-card reading meter terminal master controller the presell water yield data message of water ga(u)ge magnitude information and memory being handled, and present in LCDs by liquid crystal display circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126245 CN203151543U (en) | 2013-03-19 | 2013-03-19 | IC card intelligent water meter embedded with information security management module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126245 CN203151543U (en) | 2013-03-19 | 2013-03-19 | IC card intelligent water meter embedded with information security management module |
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| Publication Number | Publication Date |
|---|---|
| CN203151543U true CN203151543U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320126245 Withdrawn - After Issue CN203151543U (en) | 2013-03-19 | 2013-03-19 | IC card intelligent water meter embedded with information security management module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199993A (en) * | 2013-03-19 | 2013-07-10 | 成都秦川科技发展有限公司 | IC card intelligent water meter provided with information security management module in embedded mode |
| CN107301539A (en) * | 2017-07-26 | 2017-10-27 | 深圳市盛路物联通讯技术有限公司 | A kind of water resource management-control method and system |
| CN109615785A (en) * | 2018-12-17 | 2019-04-12 | 江苏华尔威科技集团有限公司 | A kind of multi-functional remote transmitting water meter system |
| CN113063470A (en) * | 2021-05-17 | 2021-07-02 | 深圳市前海海洋仪表科技有限公司 | Ultrasonic wave thing networking water gauge that two keys were encrypted |
-
2013
- 2013-03-19 CN CN 201320126245 patent/CN203151543U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199993A (en) * | 2013-03-19 | 2013-07-10 | 成都秦川科技发展有限公司 | IC card intelligent water meter provided with information security management module in embedded mode |
| CN103199993B (en) * | 2013-03-19 | 2015-12-30 | 成都秦川科技发展有限公司 | Be embedded with the IC-card intellectual water meter of information security management module |
| CN107301539A (en) * | 2017-07-26 | 2017-10-27 | 深圳市盛路物联通讯技术有限公司 | A kind of water resource management-control method and system |
| CN109615785A (en) * | 2018-12-17 | 2019-04-12 | 江苏华尔威科技集团有限公司 | A kind of multi-functional remote transmitting water meter system |
| CN113063470A (en) * | 2021-05-17 | 2021-07-02 | 深圳市前海海洋仪表科技有限公司 | Ultrasonic wave thing networking water gauge that two keys were encrypted |
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