CN103220133B - There is the remote-control intelligent gas meter of information security management function - Google Patents
There is the remote-control intelligent gas meter of information security management function Download PDFInfo
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Abstract
The invention discloses a kind of remote-control intelligent gas meter with information security management function, belong to a kind of remote-control intelligent gas meter, described remote-control intelligent gas meter comprises remote-control intelligent gas meter terminal master controller and FLASH memory, and described remote-control intelligent gas meter terminal master controller is by external data interface access data transport module; Described external data interface communicates with the unique data between data transmission module for performing remote-control intelligent gas meter terminal master controller; By increasing the function of information security management in remote-control intelligent gas meter terminal master controller, authentication is carried out when making it carry out exchanges data by the gas management system of selling of data transmission module and gas company, ensure that the legitimacy of both communication, and can seamless access civil gas management system by external data interface, realize the dispersion manufacture of remote-control intelligent gas meter, unified management, and ensure that the independence of gas company on gas meter, flow meter controls, not by extraneous restriction.
Description
Technical field
The present invention relates to a kind of remote-control intelligent gas meter, in particular, the present invention relates generally to a kind of remote-control intelligent gas meter with information security management function.
Background technology
Remote-control intelligent gas meter needs and sells gas management system to carry out exchanges data, selling gas management system is mainly transferred in remote-control intelligent gas meter by wired or wireless transmission method by relevant control instruction, load value data etc., and the related feedback information simultaneously in remote-control intelligent gas meter is turned back to by same transmission means again sells gas management system.Wired or wireless transmission medium, in the use of reality, has the limitation of Technology application, can produce the unfavorable factor of many and diverse influences transfer of data, causes the unreliable, dangerous of exchanges data.
When adopting wire transmission mode as telecommunication, main employing Optical Fiber Transmission, the mode such as data line transfer and power line transmission, these transmission meanss all need the cable of complicated layout, in special geographical environment, these wirings can become quite difficulty, when cable goes wrong, may occur that the data transmitted make a mistake, if there is no effective data check technology, then may cause sell that data that gas management system sends and remote-control intelligent gas meter receive data inconsistent, after occurring that cable is by people's reconfiguration, if remote-control intelligent gas meter does not have information security management function, can realize departing from gas company technically to sell gas management system and steal related data, adopt relevant technology, breaking encryption algorithm and related protocol, replace selling gas management system and remote recharge is carried out to remote-control intelligent gas meter, Long-distance Control, thus usurp the combustion gas of natural gas company, gas company is caused to suffer economic loss.When adopting wireless transmission method as telecommunication, main employing RF module, Zigbee module, WiFi module and bluetooth module etc. transmit, these wireless devices may produce exchanges data mistake owing to being subject to the factor impacts such as geographical environment is severe, Changes in weather exception, transmission disturbance, when remote-control intelligent gas meter does not have information security management function, data are caused effectively to verify, receive misdata, cause the data in intelligent gas meter inconsistent with the data of selling gas management system; Simultaneously, when using the communication mode of these wireless transmission, data are propagated in free space, when there is artificial destruction, if remote-control intelligent gas meter does not have information security management function, data may be intercepted and captured, and be decrypted, can compile out the control program that to match with remote-control intelligent gas meter technically, control remote-control intelligent gas meter and illegally use gas, gas company will suffer economic loss.
On the other hand, the remote-control intelligent gas meter of different brands adopts different management systems, management password, mode of operation etc., if remote-control intelligent gas meter inside does not have information security management function, not unified interface and program of carrying out exchanges data with outside, unified management cannot be accomplished by gas company.Remote-control intelligent gas meter can depart from the management system of gas company, information is arbitrarily modified, using state is controlled, user need not pay just can use combustion gas, cause gas company to suffer economic loss, gas company also exists remote-control intelligent gas meter and sells gas management system risk simultaneously out of control.Therefore be necessary for the problems referred to above, further improvement done to existing remote-control intelligent gas meter, realizes information security management.
Summary of the invention
An object of the present invention is to solve above-mentioned deficiency, a kind of remote-control intelligent gas meter with information security management function is provided, to expect the problem that the information security management solving remote-control intelligent gas meter and management system thereof in prior art can not be guaranteed, eliminate the risk of information security management in gas company's operation.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of remote-control intelligent gas meter with information security management function provided by the present invention, described remote-control intelligent gas meter comprises remote-control intelligent gas meter terminal master controller and FLASH memory, and described remote-control intelligent gas meter terminal master controller is by external data interface access data transport module; Described external data interface communicates with the unique data between data transmission module for performing remote-control intelligent gas meter terminal master controller, transmits it to remote-control intelligent gas meter terminal master controller when receiving the external data coming from data transmission module; Described data transmission module directly receives and comes from long-range external data of selling gas management system; Described FLASH memory is for storing in remote-control intelligent gas meter the control and documentor that supply remote-control intelligent gas meter terminal master controller to call; Described remote-control intelligent gas meter terminal master controller is used for when receiving the external data coming from external data interface, authentication is carried out to the gas management system of selling sending external data, judge whether to obtain the encrypted packets in this external data, when judged result is legal, then perform the operation of corresponding table end according to the affairs comprised in packet.
As preferably, further technical scheme is: described remote-control intelligent gas meter terminal master controller is also for when sell the identity of gas management system when certification be legal, then decrypted data packet being verified by the integrality of data check module to data, on the contrary then to be resetted initial condition by reset circuit; After data integrity verifying passes through, verified by the validity of data check module to data, otherwise then to be resetted initial condition by reset circuit; After Validation of Data is passed through, preliminary treatment is carried out to the affairs comprised in data, and generate return information for pre-processed results, data transmission module is returned to by external data interface by after described return information encryption, when then pre-processed results being approved after the effective confirmation obtaining data transmission module and storing relevant operation information, and perform in pre-processed results and operate accordingly; 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 remote-control intelligent gas meter carries out exchanges data from different gas management systems of selling respectively, remote-control intelligent gas meter terminal master controller according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus the identity of gas management system is sold in certification, and after encrypted packets deciphering and completeness check are passed through, according to agreement restrictive condition, by data check module verification data in current validity of selling under gas management system identity, judge whether to carry out preliminary treatment to the affairs in data.
Further technical scheme is: also comprise eeprom memory in described remote-control intelligent gas meter, for storing the associative operation information of remote-control intelligent gas meter terminal master controller, and remote-control intelligent gas meter terminal master controller is to the pre-processed results of affairs in external data.
Described remote-control intelligent gas meter terminal master controller is also by external data interface access IC card information Switching Module, for transmitting it in remote-control intelligent gas meter terminal master controller when receiving the external data coming from IC card information Switching Module, remote-control intelligent gas meter performs the verification identical with when receiving the external data of data transmission module and operation to this external data.
Further technical scheme is: described remote-control intelligent gas meter terminal master controller is central processing unit or the single-chip microcomputer that can perform cryptographic algorithm; Described data transmission module is network communication module or bus communication module.
Further technical scheme is: described external data interface is at least RF module interface, Zigbee module interface, WiFi module interface, bluetooth module interface, infrared module interface, Optical Fiber Transmission interface, data line transfer interface and power line transmission interface, or USART serial line interface, SPI serial line interface and I2C serial line interface, or Mbus bus interface, RS485 bus interface, any one in the middle of CAN interface.
Further technical scheme is: also comprise encrypting module in described remote-control intelligent gas meter, for to remote-control intelligent gas meter terminal master controller with sell the multistage encryption and decryption that gas management system data exchanges, and the data encryption key that gas management system is sold in auxiliary remote-control intelligent gas meter terminal master controller acquisition carries out authentication.
Further technical scheme is: described encrypting module is by the Advanced Encryption Standard in AES(cryptography, the abbreviation of English Advanced Encryption Standard) or the triple DEA of 3DES(, English Triple Data Encryption Algorithm) mode carry out data encrypting and deciphering.
Further technical scheme is: also comprise mechanical metering device and signal pre-processing circuit in described remote-control intelligent gas meter, at least be provided with electromechanical valve and electromechanical signal conversion device in described mechanical metering device, described electromechanical signal conversion device is by signal pre-processing circuit access remote-control intelligent gas meter terminal master controller; Described electromechanical valve is by electromechanical valve control circuit access remote-control intelligent gas meter terminal master controller.
Further technical scheme is: also comprise display circuit, crystal oscillating circuit and download program mouth in described remote-control intelligent gas meter, described display circuit, crystal oscillating circuit and download program mouth all access remote-control intelligent gas meter terminal master controller, wherein: described remote-control intelligent gas meter terminal master controller accesses LCDs by display circuit, for the Various types of data information of remote-control intelligent gas meter is presented in LCDs; Described crystal oscillating circuit is used for providing clock signal to remote-control intelligent gas meter terminal main controller; Described download program mouth is used for relevant program to be downloaded in FLASH memory by remote-control intelligent gas meter terminal master controller, real-time upgrading cipher key procedures.
Compared with prior art, one of beneficial effect of the present invention is: by increasing the function of information security management in remote-control intelligent gas meter terminal master controller, authentication is carried out when making it carry out exchanges data by the gas management system of selling of data transmission module and gas company, ensure that the legitimacy of both communication, remote-control intelligent gas meter could must be communicated with outside by external data interface; Utilize different keys can realize the priority assignation of gas company's differentiated control, and adopt 3DES/AES multi-level encryption mode, make the fail safe of key higher, and by upgrade key during download program cause for gossip on remote-control intelligent gas meter, avoid the risk that key exposure brings; By built-in data verifying program module, ensure that the data of transmission are true, accurate and complete.Simultaneously a kind of remote-control intelligent gas meter structure with information security management function provided by the present invention is simple, can seamless access civil gas management system by external data interface, realize the dispersion manufacture of remote-control intelligent gas meter, unified management, range of application is wide, and ensure that the independence of gas company on gas meter, flow meter controls, not by extraneous restriction.
Accompanying drawing explanation
Fig. 1 is for illustration of the information security management structural schematic block diagram in one embodiment of the invention;
Fig. 2 is the structural schematic block diagram for illustration of another 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 remote-control intelligent gas meters with information security management function, need in this remote-control intelligent gas meter to be provided with remote-control intelligent gas meter terminal master controller and FLASH memory, and remote-control intelligent gas meter terminal master controller is by external data interface access data transport module;
Said external data-interface communicates with the unique data between data transmission module for performing remote-control intelligent gas meter terminal master controller, transmits it to remote-control intelligent gas meter terminal master controller when receiving the external data coming from data transmission module; Described data transmission module directly receives and comes from long-range external data of selling gas management system;
Above-mentioned FLASH memory is for storing in remote-control intelligent gas meter the control and documentor that supply remote-control intelligent gas meter terminal master controller to call;
Above-mentioned remote-control intelligent gas meter terminal master controller is used for when receiving the external data coming from external data interface, authentication is carried out to the gas management system of selling sending external data, judge whether to obtain the encrypted packets in this external data, when judged result is legal, then deciphers and operate according to the corresponding table end of the affairs execution comprised in packet.
According to above-mentioned technical scheme, the technical problem that the present embodiment solves be by above-mentioned functions remote-control intelligent gas meter terminal master controller, first that carries out exchanges data at itself and external data interface carries out authentication and data encrypting and deciphering in advance, thus coordinate the remote-control intelligent gas meter of gas company to terminal to manage, to eliminate the risk of information security management in gas company's operation.
Shown in figure 2, in another embodiment of the invention, in conjunction with the known technology about remote-control intelligent gas meter in this area, in above-mentioned remote-control intelligent gas meter, also mechanical metering device and signal pre-processing circuit should be set, and mechanical metering device is provided with combustion gas input port and combustion gas delivery outlet, and its inside is at least provided with electromechanical valve and electromechanical signal conversion device, wherein electromechanical signal conversion device is by signal pre-processing circuit access remote-control intelligent gas meter terminal master controller; Electromechanical valve is then by electromechanical valve control circuit access remote-control intelligent gas meter terminal master controller, remote-control intelligent gas meter terminal master controller controls the switch motion of electromechanical valve by electromechanical valve control circuit, is namely made up of the valve control module in remote-control intelligent gas meter electromechanical valve and electromechanical valve control circuit.
Shown in Fig. 1, further, in above-mentioned remote-control intelligent gas meter, display circuit, crystal oscillating circuit and download program mouth also can be set, described display circuit, crystal oscillating circuit and download program mouth all access above-mentioned remote-control intelligent gas meter terminal master controller, wherein: described remote-control intelligent gas meter terminal master controller accesses LCDs by display circuit, it act as and the Various types of data information of remote-control intelligent gas meter is presented in LCDs, and the information presented such as remains tolerance, switch valve state etc.; Described crystal oscillating circuit is used for providing clock signal to remote-control intelligent gas meter terminal main controller, and VCC and VSS two pins provides working power for remote-control intelligent gas meter; And relevant program is downloaded in FLASH memory by remote-control intelligent gas meter terminal master controller by acting as of download program mouth, real-time upgrading cipher key procedures, avoids the risk because key exposure brings.
Mention as above-described embodiment, the present invention is except information security management function, it is in fact a kind of remote-control intelligent gas meter with information security management function, it is based on IC-card intelligent gas meter, a kind of intelligent gas meter of facility information remote transmission and apparatus remote control is realized in conjunction with Long-distance Transmission Technologies, it take remote communication module as transmission medium, selling gas management system is platform, based on displacement machine measurement technology, pass through electronic-metering technology, data-collection technology, valve control techniques, data processing technique, telecommunication technique, the combination of combination technique realizes electronic measurement, remote valve control, Long-distance Control, the gas meter, flow meter of the functions such as remote recharge.
Shown in Fig. 1, in the embodiment that the present invention is more preferably for technical solution problem, there is provided a kind of above-mentioned remote-control intelligent gas meter terminal master controller to selling the concrete mode that gas management system carries out authentication, data check and affairs perform, namely when the identity that gas management system is sold in the certification of remote-control intelligent gas meter terminal master controller is legal, then decrypted data packet being verified by the integrality of data check module to data, on the contrary then to be resetted initial condition by reset circuit;
After data integrity verifying passes through, then verified by the validity of data check module to data, otherwise then to be resetted initial condition by reset circuit;
After Validation of Data is passed through, preliminary treatment is carried out to the affairs comprised in data, and generate return information for pre-processed results, data transmission module is returned to by external data interface by after described return information encryption, when then pre-processed results being approved after the effective confirmation obtaining data transmission module and storing relevant operation information, thus operate accordingly in execution pre-processed results; Otherwise then abandon pre-processed results or make caching process, be specially the confirmation result that remote-control intelligent gas meter terminal master controller does not receive data transmission module within the time preset, in three minutes, such as do not receive the confirmation of data transmission module, then reset initial condition; Aforesaid caching process refers to keeps in pre-processed results instruction, when remote-control intelligent gas meter terminal master controller is again waken up and receives the confirmation of data transmission module, then performs in pre-processed results in the same way and operates accordingly.
Contain the present embodiment peripheral data in above-mentioned technical scheme and authenticate to the whole flow process of affairs performed by remote-control intelligent gas meter terminal master controller external data from selling gas management system identity, by the programming of above-mentioned flow process, further enhance remote-control intelligent gas meter to the fail safe receiving information and executing.And the above-mentioned remote-control intelligent gas meter terminal master controller reset initial condition repeatedly mentioned, be reset remote-control intelligent gas meter terminal master controller and perform the state before any one operation above-mentioned, such as remote-control intelligent gas meter terminal master controller is resting state receiving the external data state of carrying out before authentication, be waken up by resting state when receiving external data, but when being judged as illegal to the authentication of selling gas management system, remote-control intelligent gas meter terminal master controller then recovers resting state by reset circuit, do not carry out any operation, in other step, the situation of processor reset also substantially as hereinbefore, and reset circuit also can be considered a chip virtual module in remote-control intelligent gas meter terminal master controller in the present invention, when failing the authentication, operation note can be stored by remote-control intelligent gas meter terminal master controller, checks so that follow-up.
As mentioned here above, by above-mentioned display circuit and LCDs, and the display driving software of remote-control intelligent gas meter terminal master controller inside forms the display module in remote-control intelligent gas meter jointly, display module is passive by remote-control intelligent gas meter terminal main controller controls, shows relevant table client information by LCDs.
In another embodiment of the invention, for realizing being managed by the remote-control intelligent gas meter of different rights to user terminal, need in above-mentioned FLASH memory preset agreement restrictive condition and multiple different cipher key procedures, and above-mentioned control and documentor can think the general name of agreement restrictive condition and multiple different cipher key procedures, it act as when remote-control intelligent gas meter carries out exchanges data from different gas management systems of selling respectively, remote-control intelligent gas meter terminal master controller according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus the identity of gas management system is sold in certification, and after encrypted packets deciphering and completeness check are passed through, according to agreement restrictive condition, by data check module verification data in current validity of selling under gas management system identity, judge whether to carry out preliminary treatment to the affairs in data.
According to another embodiment of the present invention, as mentioned here above, for ease of the buffer memory of remote-control intelligent gas meter terminal master controller pre-processed results, in remote-control intelligent gas meter, also relatively independent eeprom memory can be set, for storing the associative operation information of remote-control intelligent gas meter terminal master controller, and remote-control intelligent gas meter terminal master controller is to the pre-processed results of affairs in external data.And in FLASH memory, be also provided with other program that can be utilized by remote-control intelligent gas meter terminal master controller, such as make the associative operation information of remote-control intelligent gas meter terminal master controller once be stored to after in eeprom memory, can not be deleted with amendment, to make the running status of remote-control intelligent gas meter leave complete record.
On the other hand, the FLASH memory mentioned in the present embodiment and eeprom memory can independent of remote-control intelligent gas meter terminal master controllers, also directly can be integrated in remote-control intelligent gas meter terminal master controller, divide to arrange by concrete chip and play above-mentioned memory function.
Shown in figure 1, above-mentioned remote-control intelligent gas meter terminal master controller of having mentioned can carry out encryption and decryption to the data from data transmission module, in an alternative embodiment of the invention, also directly in remote-control intelligent gas meter, encrypting module can be set separately, this encrypting module can be independently, also can the form of software program be stored in FLASH memory, it act as and carries out multistage encryption and decryption to remote-control intelligent gas meter terminal master controller and the exchanges data of selling gas management system, and auxiliary remote-control intelligent gas meter terminal master controller obtains the data encryption key selling gas management system from external data carries out authentication.With reference to the cipher mode that fail safe in prior art is higher, Advanced Encryption Standard in preferred employing AES(cryptography, the abbreviation of English AdvancedEncryption Standard) or the triple DEA of 3DES(, English Triple DataEncryption Algorithm) carry out encryption and decryption to by the data of coming and going in external data interface.
According to the form that above-mentioned encrypting module exists in remote-control intelligent gas meter, the data check module in the above embodiment of the present invention is also identical situation, and namely it can be independently, also can the form of software program be stored in FLASH memory.
Shown in figure 1, make above-mentioned remote-control intelligent gas meter have the IC-card read functions of current main flow intelligent gas meter concurrently for meeting simultaneously, in another embodiment of the invention, also can set up IC card information Switching Module wherein, and by remote-control intelligent gas meter terminal master controller by external data interface access IC card information Switching Module, for transmitting it in remote-control intelligent gas meter terminal master controller when receiving the external data coming from IC card information Switching Module, remote-control intelligent gas meter performs the verification identical with when receiving the external data of data transmission module and operation to this external data, and IC card information Switching Module reads the external data of selling gas management system and writing by IC-card.
Further, in another embodiment of the invention, above-mentioned remote-control intelligent gas meter terminal master controller is the core of whole remote-control intelligent gas meter, the function such as control, execution, reset of being correlated with is realized with this, perform relevant program command, coordinate to work in order, efficiently between each functional module.For remote-control intelligent gas meter terminal master controller itself, directly can adopt in prior art and can perform cryptographic algorithm or with the single-chip microcomputer of ready-made cryptographic algorithm or central processing unit.
Simultaneously based on data communication mode required in above-described embodiment, inventor is with reference to the data transmittal and routing form of current remote-control intelligent gas meter main flow, think that above-mentioned data transmission module can adopt network communication module or bus communication module etc., adopt wired or wireless signal as data transmission media.And corresponding, in above-described embodiment the external data interface of remote-control intelligent gas meter terminal master controller preferably and conventional outside data transmission interface match, the serial line interfaces such as such as USART interface, SPI interface or I2C interface; The network communication interfaces such as RF module interface, Zigbee module interface, WiFi module interface, bluetooth module interface, infrared module interface, Optical Fiber Transmission interface, data line transfer interface and power line transmission interface; And the bus interface such as Mbus interface, RS485 interface, CAN interface, to increase the compatibility of remote-control intelligent gas meter terminal master controller and data transmission module.
Have in the remote-control intelligent gas meter practical application of information security management function in above-described embodiment, be as good as with existing remote-control intelligent gas meter.As Fig. 1, illustrated in fig. 2, remote-control intelligent gas meter terminal master controller, according to the operational order of external data, completes the information exchange with data transmission module.Remote-control intelligent gas meter terminal master controller realizes electromechanical valve switch motion by electromechanical valve control circuit, display circuit is by electromechanical valve state, supplement tolerance with money, residue tolerance etc. information presents in LCDs, mechanical count signal is converted to the signal of telecommunication by electromechanical signal conversion device, transfer in remote-control intelligent gas meter terminal master controller by signal pre-processing circuit, tolerance value in memory and the gas consumption value received by counting module are made mathematic interpolation by remote-control intelligent gas meter terminal master controller, and tolerance remaining sum is presented in LCDs, remote-control intelligent gas meter obtains corresponding external data by data transmission module is direct in a wireless or wired way from long-range gas management system of selling, thus perform relevant remote valve control, the operation such as to supplement with money, when the balance depletion of supplementing with money in subscriber's meter, remote-control intelligent gas meter terminal master controller controls the electromechanical valve in mechanical metering device by electromechanical valve control circuit, makes it turn off, and then stops air feed, reopens after user successfully supplements with money.
Shown in figure 3, there is use after the remote-control intelligent gas meter of information security management function, the outside all communication datas of remote-control intelligent gas meter are all undertaken by external data interface, by remote-control intelligent gas meter terminal master controller by the laggard row relax of encrypting module encryption and decryption, and the interface that remote-control intelligent gas meter terminal master controller carries out exchanges data with outside and internal processes are unique, therefore sell gas management system and remote-control intelligent gas meter terminal master controller can be considered as terminal, in order to manage remote-control intelligent gas meter, namely sell gas management system compatible various brand with one, the remote-control intelligent gas meter of type is managed concentratedly, effective reduction gas company is to different brands in region, the difficulty of type gas meter, flow meter integration management.Go out as shown in Figure 3, remote-control intelligent gas meter with the communication path selling gas management system is: show to hold directly or pass through upper strata multistage communication device, and as collector, repeater, concentrator etc., arrive and sell gas management system.By above-mentioned path, table end namely directly with sell gas management system and realize transfer of data.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and execution mode, these amendments and execution mode will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (9)
1. one kind has the remote-control intelligent gas meter of information security management function, it is characterized in that: described remote-control intelligent gas meter comprises remote-control intelligent gas meter terminal master controller and FLASH memory, described remote-control intelligent gas meter terminal master controller is by external data interface access data transport module;
Described external data interface communicates with the unique data between data transmission module for performing remote-control intelligent gas meter terminal master controller, transmits it to remote-control intelligent gas meter terminal master controller when receiving the external data coming from data transmission module; Described data transmission module receives and comes from long-range external data of selling gas management system from Internet of Things;
Described FLASH memory is for storing in remote-control intelligent gas meter the control and documentor that supply remote-control intelligent gas meter terminal master controller to call;
Described remote-control intelligent gas meter terminal master controller is used for when receiving the external data coming from external data interface, authentication is carried out to the gas management system of selling sending external data, judge whether to obtain the encrypted packets in this external data, when judged result is legal, then decrypted data packet being verified by the integrality of data check module to data, on the contrary then to be resetted initial condition by reset circuit;
After data integrity verifying passes through, verified by the validity of data check module to data, otherwise then to be resetted initial condition by reset circuit;
After Validation of Data is passed through, preliminary treatment is carried out to the affairs comprised in data, and generate return information for pre-processed results, data transmission module is returned to by external data interface by after described return information encryption, when then pre-processed results being approved after the effective confirmation obtaining data transmission module and storing relevant operation information, and perform in pre-processed results and operate accordingly; Otherwise then abandon pre-processed results or make caching process.
2. the remote-control intelligent gas meter with information security management function 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 remote-control intelligent gas meter carries out exchanges data from different gas management systems of selling respectively, remote-control intelligent gas meter terminal master controller according to the encryption key of external data compared with multiple cipher key procedures preset in FLASH memory, thus the identity of gas management system is sold in certification, and after encrypted packets deciphering and completeness check are passed through, according to agreement restrictive condition, by data check module verification data in current validity of selling under gas management system identity, judge whether to carry out preliminary treatment to the affairs in data.
3. the remote-control intelligent gas meter with information security management function according to claim 1, it is characterized in that: in described remote-control intelligent gas meter, also comprise eeprom memory, for storing the associative operation information of remote-control intelligent gas meter terminal master controller, and remote-control intelligent gas meter terminal master controller is to the pre-processed results of affairs in external data;
Described remote-control intelligent gas meter terminal master controller is also by external data interface access IC card information Switching Module, for transmitting it in remote-control intelligent gas meter terminal master controller when receiving the external data coming from IC card information Switching Module, remote-control intelligent gas meter performs the verification identical with when receiving the external data of data transmission module and operation to this external data.
4. the remote-control intelligent gas meter with information security management function according to claim 1, is characterized in that: described remote-control intelligent gas meter terminal master controller is central processing unit or the single-chip microcomputer that can perform cryptographic algorithm; Described data transmission module is network communication module or bus communication module.
5. the remote-control intelligent gas meter with information security management function according to claim 1, it is characterized in that: described external data interface is at least RF module interface, Zigbee module interface, WiFi module interface, bluetooth module interface, infrared module interface, Optical Fiber Transmission interface, data line transfer interface and power line transmission interface, or USART serial line interface, SPI serial line interface and I2C serial line interface, and any one in the middle of Mbus bus interface, RS485 bus interface and CAN interface.
6. the remote-control intelligent gas meter with information security management function according to claim 1, it is characterized in that: in described remote-control intelligent gas meter, also comprise encrypting module, for carrying out multistage encryption and decryption to remote-control intelligent gas meter terminal master controller and the exchanges data of selling gas management system, and auxiliary remote-control intelligent gas meter terminal master controller obtains the data encryption key selling gas management system from external data carries out authentication.
7. the remote-control intelligent gas meter with information security management function according to claim 6, is characterized in that: described encrypting module carries out data encrypting and deciphering by the mode of AES or 3DES.
8. the remote-control intelligent gas meter with information security management function according to claim 1, it is characterized in that: in described remote-control intelligent gas meter, also comprise mechanical metering device and signal pre-processing circuit, at least be provided with electromechanical valve and electromechanical signal conversion device in described mechanical metering device, described electromechanical signal conversion device is by signal pre-processing circuit access remote-control intelligent gas meter terminal master controller; Described electromechanical valve is by electromechanical valve control circuit access remote-control intelligent gas meter terminal master controller.
9. the remote-control intelligent gas meter with information security management function according to claim 1 or 8, it is characterized in that: in described remote-control intelligent gas meter, also comprise display circuit, crystal oscillating circuit and download program mouth, described display circuit, crystal oscillating circuit and download program mouth all access remote-control intelligent gas meter terminal master controller, wherein: described remote-control intelligent gas meter terminal master controller accesses LCDs by display circuit, for the Various types of data information of remote-control intelligent gas meter is presented in LCDs; Described crystal oscillating circuit is used for providing clock signal to remote-control intelligent gas meter terminal main controller; Described download program mouth is used for relevant program to be downloaded in FLASH memory by remote-control intelligent gas meter terminal master controller, real-time upgrading cipher key procedures.
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| CN103885400A (en) * | 2014-02-24 | 2014-06-25 | 安徽爱姆恩智能科技有限公司 | Gas valve controller based on Zigbee technology |
| CN112055346B (en) * | 2020-09-10 | 2023-03-10 | 欣格瑞电气（上海）有限公司 | Data transmission method and Bluetooth repeater |
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| CN101526815A (en) * | 2009-04-17 | 2009-09-09 | 成都秦川科技发展有限公司 | Method for remotely managing gas meter terminal and intelligent gas meter realizing same |
| CN102063764A (en) * | 2011-01-25 | 2011-05-18 | 邵泽华 | Intelligent gas meter of Internet of things and control system thereof |
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| KR20010109852A (en) * | 2000-06-02 | 2001-12-12 | 김태훈 | Gauge auto management system |
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| CN101526815A (en) * | 2009-04-17 | 2009-09-09 | 成都秦川科技发展有限公司 | Method for remotely managing gas meter terminal and intelligent gas meter realizing same |
| CN102063764A (en) * | 2011-01-25 | 2011-05-18 | 邵泽华 | Intelligent gas meter of Internet of things and control system thereof |
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