CN104468609A - Data collection gateway of internet of things and data encryption method - Google Patents
Data collection gateway of internet of things and data encryption method Download PDFInfo
- Publication number
- CN104468609A CN104468609A CN201410816850.9A CN201410816850A CN104468609A CN 104468609 A CN104468609 A CN 104468609A CN 201410816850 A CN201410816850 A CN 201410816850A CN 104468609 A CN104468609 A CN 104468609A
- Authority
- CN
- China
- Prior art keywords
- protocol
- layer
- module
- internet
- communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Computer Security & Cryptography (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention provides a data collection gateway of an internet of things and a data encryption method and belongs to the field of the internet of things. The data collection gateway of the internet of things sequentially comprises a communication hardware abstraction layer, an application layer communication protocol layer, a protocol adaptation layer, a protocol conversion control layer and a human-machine interface from bottom to top. The communication hardware abstraction layer abstracts various communication modes into a communication module. The application layer communication protocol layer packages data of the communication hardware abstraction layer according to application layer communication protocols corresponding to the data, and the packaged data packets are submitted by the application layer communication protocol layer to the protocol adaptation layer to be analyzed. The protocol adaptation layer recognizes and analyzes the data packets provided by the application layer communication protocol layer and submits the data packets to a protocol conversion module of the protocol conversion control layer. The protocol conversion control layer controls the protocol adaptation layer and the application layer communication protocol layer and provides a calling service for a human-machine interface layer.
Description
Technical field
The invention belongs to Internet of Things field, be specifically related to a kind of internet of things data acquisition gateway and data ciphering method.
Background technology
Data are carriers of information, are the valuable sources in information world; The concern of data acquisition extremely people always.Data acquisition gateway completes collection, the storage forwarding of data, communication Protocol Conversion, the functions such as the management of software and hardware resources, is the key equipment in industrial or agricultural automation, informationization, intelligent field.Control to be energy-conservation important leverage to the management of building energy consumption data monitoring.
Data acquisition originates in the 1950's, and first the U.S. in 1956 have studied and be used in military data acquisition test system.At present, the country of advanced technology is widely used in military affairs, agricultural, health care, avionic device and the field such as aerospace flight technology, industry data acquisition technology in the world.Phase late 1990s, along with sensor technology, the communication technology, develop and reach its maturity to embedding assembly rapid technological improvement, worldwide start the microsensor occurring having perception, computing capability and communication capacity, therefore people also start to pay close attention to the sensor network be made up of these microsensor device.Sensor network is by the various wired or wireless data waiting the perception of short-haul connections mode to gather adverse circumstances, industry spot, and it can run under independently environment, but this is not easy to real-time analysis process to data and decision-making; Also can be connected to the Internet by gateway, user can at any time easily remote access management and control, this is the basic network model framework of Internet of Things, as shown in Figure 1.Obviously, one of important sources of Internet of Things magnanimity information is sensor network, the role of bridge between gateway performer sensor network and the Internet.
2005, International Telecommunication Union (ITU) issued " ITU the Internet report 2005: Internet of Things ", formally gives the intension of Internet of Things.Since then, technology of Internet of things is all extremely valued by national governments, the numerous and confused development plan formulating Internet of Things; Research and development correlative networked product is set about by each commercial undertaking; Each academic research organization actively formulates Internet of Things relevant criterion and captures a correlation technique difficult problem for Internet of Things.Technology of Internet of things is still not mature enough, but there is Internet of Things application case in intelligent transportation, Intelligent logistics, intelligent medical, Smart Home field and individual and social field, and Energy Consumption of Public Buildings data monitoring management control is one of popular research of Internet of Things application.
Data gateway is the visual plant in building energy consumption monitoring platform, and the existing manufacturer specializing in the exploitation of embedded communications protocol gateway product and sell on market, as Woodhead, prolinx, Schneider etc.; The WNC201 controlled in the NDAM data acquisition module of the communication gate pFieldComm of three-dimensional force control, extremely electronics far away, the multi-protocol data acquisition gateway GXcomm of high letter software and Zhejiang.This series products is absorbed in the conversion of communications protocol, and the production development of opening for building energy consumption data collecting field is specially also immature, the demand such as many communication interfaces, intelligent supervision under saying nothing of Internet of Things applied environment.Southern Yangtze University have developed the first generation intelligent data gateway that can gather and meet DL/T645 multifunction electric meter communication protocol, CJ/T188 user's measuring instrument transmission conditions; The colleges and universities such as HeFei University of Technology, Shandong University Building, University Of Chongqing are all at active development development intelligent data acquisition gateway.But they are mainly placed on energy in hardware designs, and after not considering more upgrade application in Internet of Things field.Embedded technology is one of most important technology in data gateway development, and embedded software is the soul of embedded system, and Software for Design is the key problem of data gateway.For this problem, the software framework structure of data acquisition gateway under existing Internet of Things applied environment, mainly from software model, not in conjunction with concrete practical application.For Internet of Things security threat problem, prior art is summarized Internet of Things potential safety hazard and measure, but the demand for security of different application, safe class are different, specifically take which kind of measure also to formulate according to demand.Current building energy consumption data acquisition is all based on enterprises and institutions' in-house network, and the attack therefore from external network can't form security threat.In the near future, the extensive use of Internet of Things, also certainly will must access building energy consumption data by external network, this must consider safety factor.For building energy consumption problem of data safety, also do not cause the attention generating data acquisition gateway manufacturer both at home and abroad at present.
Existing things-internet gateway framework is substantially all the structure of Fig. 2, and the further layering of the carrying out that core processing layer has, what have is directly used as one deck, be just divided into more module.There are following 3 irrational places in such design:
Distinguishing hierarchy aspect: obviously, such design is the impact by Internet of Things network topology structure, and it is two independently levels that short-haul connections and telecommunication be look at, and core layer is the module such as protocol analysis, management control.Such framework thinking, not from the angle of application, when causing application extension, is difficult to carry out the amendment of middle layer module.When Software Architecture Design, the consideration to network topology should be abandoned, be absorbed in the classifying rationally of software level.
Intermodule call aspect: as can be seen from Figure 2, core processing layer both have invoked the service that sensing layer provides, and have invoked again the service of wide area Access Layer.According to software hierarchy design philosophy: the module of last layer can only call the module of its service descending one deck to provide and same layer.According to this thought, from software respective, perception Access Layer and wide area Access Layer belong to same layer.In addition, when core processing layer does not carry out further layering, because module is more, the call relation of this layer will be too complicated.
Module thickness granularity aspect: for each communication mode, is divided into a module more reasonable.But for core processing layer, such as management control module, application service module, such granularity of division is excessive.Perhaps be because the application of Internet of Things is too extensive, when studying software architecture, poorly these module refinements.But when concrete a certain Internet of Things application, this generic module must refinement further.
In a word, current things-internet gateway Problems existing is that expansivity is poor, and distinguishing hierarchy is chaotic, is not easily beneficial to the realization of software code.
In addition, the Internet designer does not consider network security problem at first, causes the Internet that thousands of security incidents occur; Internet of Things expands extend and come on the basis of the Internet, and security threat is more intricate than the Internet.Although technology of Internet of things is still immature, the strick precaution of security threat must further investigated research.
According to Internet of Things level framework, the security threat of Internet of Things can be decomposed into sensing layer threat, transport layer threatens, application layer threatens.Both having there is identical security threat in each layer, also has places different separately.The networking mode of sensing layer is diversified, different networking modes has various different potential safety hazard, as rfid system has following three class potential safety hazards: 1) for can repeatedly write or reprogrammable RDID electronic tag (as supported the RFID of iso standard), any can contact RFID reader user or the self-built reader of illegal molecule can communicate with RFID, read, distort the content of even deleting electronic tag and be very easy to; For the electronic tag only allowing write-once, do not exist to distort and delete the content of electronic tag, but still can the content of reading electronic labels.2) for the rfid system lacking authentication, illegal person can forge electronic tag and communicate with reader, and then communicates with background service system, causes many unsafe factors.3) because the reader of reading electronic labels does not make any prompting to label owner, for mobile RFID electronic tag, the owner of label be easy to the whereabouts that stick one's chin out and oneself not known to.Multiple heterogeneous network is there is in Internet of Things, this just requires that transmission can efficiently by the network interconnection of different framework, this will cause transport layer to face across a network authentication question, may be subject to denial of service (DoS) attack, man-in-the-middle attack, asynchronous attacks, conspiracy attack etc.; Say in a sense, as long as any one illegal person can access the network that any one is connected into Internet of Things, all may cause deterrence to whole Internet of Things
[15].Application layer has the data of magnanimity from great amount of terminals, and the hidden danger that first may exist is the service of going whistle, and from the spurious requests of various heterogeneous network, data falsification, application layer process ability is declined and even paralyses
[12]; Secondly, in application layer, the composition of manpower intervention is more than sensing layer, transport layer, may exist and deliberately destroy the bad behaviors such as data, more likely because of the data message loss etc. that misoperation causes; Can say so, steal, destroy application layer data than much easier in transport layer, network layer, one is not that very professional computer personnel just can accomplish.
Summary of the invention
The object of the invention is to solve the difficult problem existed in above-mentioned prior art, provide a kind of internet of things data acquisition gateway and data ciphering method, expansivity is good, distinguishing hierarchy is known and be beneficial to the realization of software code, and realizes efficient cryptographic.
The present invention is achieved by the following technical solutions:
A kind of internet of things data acquisition gateway, comprises communication hardware level of abstraction, application layer communication protocol layer, protocol adaptation layers, protocol conversion key-course and man-machine interface from bottom to up successively;
Described communication hardware level of abstraction: by abstract for various communication mode be communication module;
Described application layer communication protocol layer: the data of communication hardware level of abstraction are encapsulated according to the application layer communication protocol of its correspondence, packaged packet is submitted to protocol adaptation layers and resolves;
Described protocol adaptation layers: the packet that application layer communication protocol layer is provided, after carrying out identification parsing, then submits to the protocol conversion module of protocol conversion key-course according to protocol tree;
Described protocol conversion key-course: protocol adaptation layers, application layer communication protocol layer are controlled, and provides to man-machine interface layer the service of calling;
Man-machine interface: the service directly using protocol conversion key-course to provide, carries out visual management to internet of things data acquisition gateway.
Described communication hardware level of abstraction comprises short-range communications module and remote communication module;
Short-range communications module comprises the abstract of various short-haul connections mode;
Described remote communication module comprises the abstract of various telecommunication mode.
Described application layer communication protocol layer comprises DLT645, CJT188, Modbus, FTP and HTTP.
Described protocol adaptation layers comprises protocol conversion module and protocol resolution module;
Described protocol conversion module is submitted to protocol resolution module after changing various application protocol data bag;
Described protocol resolution module is resolved packet.
Described protocol conversion key-course comprises remote supervision module, control module, memory module and security module; According to demand, can increase, removing module.
Described remote supervision module receives the order of the management node that man-machine interface is sent;
Described control module directly manages described communication hardware level of abstraction, application layer communication protocol layer, protocol adaptation layers;
Valid data after unpacking packet are carried out this locality and store by described memory module;
Described security module is carried out encryption and decryption process the packet after protocol conversion, is set up secure communication connection and consult password.
Described remote supervision module and control module run with server mode.
Database in described memory module adopts lightweight embedded database sqlite3.
The data ciphering method that described security module adopts is that the shifting function in KLEIN algorithm is designed to movable random position r, 16≤r≤63.
In described encryption method, first encryption and decryption random number produces at key agreement phase, and the random number of later encryption and decryption is the number that the 8th byte of the ciphertext that last time, encryption produced is mapped as between 16 to 63.
Compared with prior art, the invention has the beneficial effects as follows: internet of things data acquisition gateway expansivity of the present invention is good, distinguishing hierarchy is known and is beneficial to the realization of software code, can the change of adaption demand preferably, data ciphering method ensure that Internet of Things relates to and avoids being subject to security threat, achieves the high efficiency of encryption simultaneously.
Accompanying drawing explanation
The schematic diagram of Fig. 1 gateway in Internet of Things
The Organization Chart of the existing things-internet gateway of Fig. 2
The Organization Chart of Fig. 3 data acquisition gateway of the present invention
The lower three layers of module call graph of Fig. 4 gateway of the present invention
Four layers of module call graph on Fig. 5 grid of the present invention
Fig. 6-1 is the wheel improved encryption schematic diagram in cryptographic algorithm of the present invention
Fig. 6-2 is that the round key expansion in cryptographic algorithm of the present invention improves schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Data gateway take energy consumption data acquisition as case, according to State Council " Civil Building Energy Conservation regulations ", firmly build associated documents such as portion's " civil buildings energy consumption and energy-saving information system of statistical report " " implementation guideline about strengthening government offices' office building and large public building administration of energy conservation work " " government offices' office building and large public building energy efficiency supervision construct and implement scheme " " government offices' office building and large public building subitem energy consumption data acquisition fire protection technology " " government offices' office building and large public building Constructing data center and maintenance technology directive/guide " " government offices' office building and large public building itemize energy consumption data transmission technology directive/guide " " government offices' office building and large public building energy-consumption monitoring system software development teachings book " " regenerative resource Application in Building demonstrative project data monitoring system fire protection technology " (trying) " institution of higher education's the construction of economical college management and technology directive/guide " (trying) " institution of higher education's Campus buildings energy efficiency supervision system Construction fire protection technology " " institution of higher education's Campus buildings energy efficiency supervision system cloud gray model administrative skill directive/guide " " institution of higher education's Campus buildings energy consumption statistic audit publicity way " " institution of higher education's campus facility energy-saving run management method " " institution of higher education's economical campus index system and evaluation ways ", following basic demand must be met:
(1) intelligent data gateway can gather the data of dissimilar measuring instrument, comprises kilowatt-hour meter (as single-phase watt-hour meter, three phase watt-hour meter and multi-function watt-hour meter), water meter, gas meter, flow meter and heat energy meter etc.This is also the performance that things-internet gateway gathers multiple types of data.
(2) communication protocol between measuring instrument and intelligent data gateway should meet regulation and the industry standard of national departments concerned.For kilowatt-hour meter, preferably design communication mode with reference to GB DL/T 645-1997 " multifunction electric meter communication protocol "; For water meter, gas meter, flow meter and heat energy meter, preferably carry out the design of communication according to GB CJ/T 188-2004 " user's measuring instrument data transmission technology condition ".Be conducive to the intelligent metering instrument using different vendor to provide like this.
(3) data gateway can gather energy consumption table data as much as possible, at least can gather the data of 32 measuring instruments.
(4) data of data center's reception gateway collection should have real-time query and timing to push two kinds of patterns, and timing cycle can carry out flexible configuration.
(5) for preventing the loss of data of data center or being destroyed, intelligent data gateway can carry out this locality and store to the data gathered, at least should be able to preserve the data of 2 weeks.In addition, for the data of the loss occurred because of gateway and data center network fault, local data of preserving must be retransmitted to data center after network disaster recovery.
(6) ensure that the mode of data center and intelligent gateway communication confidentiality requires to carry out point-to-point encryption by symmetric encipherment algorithm, key management is undertaken unifying distribution management and recycling by data center.
(7) intelligent data gateway can to multiple data centers propelling data, and multiple management platform also can inquire about the real time data that gateway gathers simultaneously.
(8) for ease of the work of in-site installation and attendant, intelligent data gateway should possess the function of local configuration and management, and meanwhile, data management platform also can carry out Remote configuration and management in administrative center.Data gateway can diagnostic sensor node network failure and report to data center, simultaneously to the fault message with gateway self, also require that net reports to control data corporation.This embodies the feature of Internet of Things intelligent data gateway manageability.
Things-internet gateway can not only gather building energy consumption data, when increasing hardware module and corresponding software module, can also gather the data of other applications of Internet of Things.Internet of Things is divided into the three-decker of sensing layer, transport layer, application layer, gateway, as the bridge connecting sensing layer and transport layer, plays important role.Although things-internet gateway has different demands because of the difference of application, should by following 3 common traits:
(1) multiple communication interface: intelligent sensing equipment is connected to gateway by different communication technology (Zigbee, Bluetooth, RS485, CAN-Bus, WiFi), and gateway also has multiple connected mode (PSTN, 2G/3G, LTE, LAN, DSL etc.) to the Internet.Gateway has those communication interfaces and depends on the factors such as application demand, operation strategy and implementation.
(2) protocol conversion: the communication protocol of sensing layer network is often different from application layer communication protocol, this just needs gateway that sensing layer procotol and application layer protocol are changed mutually, and this is the most basic functional requirement of gateway.
(3) manageability: gateway needs by background service teaching display stand management (certification, state, movement etc.) on the one hand; Gateway needs the management (certification, control, diagnosis, maintenance etc.) realizing intelligent sensing equipment on the one hand.
Gateway in Internet of Things framework, play a part data upload and order is assigned.The data that sensor network gathers converge to data gateway by short-haul connections mode (as Zigbee, Z-wave, RFID, Blue-tooth, RS485), after gateway parsing, packed data, upload to data center by telecommunication mode (as CDMA2000, WIFI, ADSL, Ethernet).Internet of Things application platform is issued to data gateway by telecommunication mode order, data gateway resolve command, by short-haul connections mode, is forwarded to Sensor Network.
The framework of data acquisition gateway of the present invention as shown in Figure 3, comprising:
Communication hardware level of abstraction: no matter be short-haul connections or telecommunication, have communication; The communication protocol of different communication modes is different, corresponding to an abstract communication module.
Application layer communication protocol layer: the same with internet, applications, the communication protocol of different application application layers is generally different; Internet of Things application is more more extensive than the Internet, and application protocol is more many, and gateway gathers the data of an application, must realize the application communication agreement in this field.This layer mainly carries out package to the data of hardware abstraction layer according to a certain application layer communication protocol, packaged packet is submitted to protocol adaptation layers and resolves.In like manner, protocol conversion key-course also will manage this layer.
Protocol adaptation layers: short-haul connections application layer data bag is general less, and data gateway generally will resolve to short range communication protocols the application layer protocol of telecommunication.This layer only has this functional module of protocol analysis, the packet that it provides application layer communication protocol, after carrying out identification parsing, submits to the protocol conversion module of protocol conversion key-course according to protocol tree.
Protocol conversion key-course: this layer is equivalent to the core processing layer in existing document, comprises multiple module.According to demand, deletion corresponding module can be increased.As distance sensor node need be managed, remote management and control module must be increased; As needed local storage data, obtain increase memory module; As need safety factor be considered; Security module must be increased.The degree of perfection of modules, depends on application requirement.Wherein protocol conversion module, can be described as the most basic function of gateway.During concrete use, remote control module accepts the order (dormancy, wake up, restart, password amendment) of the management node that man-machine interface is sent, and by protocol conversion module, then passes to protocol resolution module.Control module can direct 3 levels of control and management under it.Protocol conversion module is submitted to protocol resolution module after will carrying out suitable conversion to various application protocol data bag.Valid data after memory module unpacks packet carry out this locality and store.Security module is responsible for the packet after protocol conversion and is carried out encryption and decryption process, secure communication establishment of connection, the work such as password negotiation.Remote supervision module in gateway protocol conversion and control layer, control module are run with server mode.
Man-machine interface: for the ease of the management of gateway, provides a simple man-machine interface attractive in appearance to be necessary, and best mode is managed by web mode.This layer of various service directly using protocol conversion key-course to provide, carry out visual management to gateway.
According to this gateway of viewpoint software architecture of three-tier architecture, man-machine interface layer can be regarded as presentation layer (UIL), protocol conversion key-course is regarded as Business Logic (BLL), data access layer (DAL) is regarded as nethermost 3 layers, just it is data from communication equipment, but not database.
In fact communication hardware level of abstraction is exactly the driving file of each hardware device.In (SuSE) Linux OS, I/O equipment is also used as file mode and is conducted interviews, and application layer communication protocol, to the access of I/O equipment, is just equivalent to the access to ordinary file.Generally, different application layer communication protocols, can read different I/O equipment, as DLT645, CJT188 agreement corresponds to short range communication devices, FTP, http protocol correspond to telecommunication equipment, and Modbus agreement can adopt telecommunication mode, also can adopt short-haul connections mode.Secondly, the control module of protocol conversion key-course also needs to manage equipment, as added operations such as deleting testing equipment.The relation of its intermodule as shown in Figure 4, Figure 5.
Gateway in Internet of Things framework, play a part data upload and order is assigned.The data that sensor network gathers converge to data gateway by short-haul connections mode (as Zigbee, Z-wave, RFID, Blue-tooth, RS485), after gateway parsing, packed data, upload to data center by telecommunication mode (as CDMA2000, WIFI, ADSL, Ethernet).Internet of Things application platform is issued to data gateway by telecommunication mode order, data gateway resolve command, by short-haul connections mode, is forwarded to Sensor Network.
During concrete enforcement, the present invention for hardware platform, becomes RS485 interface to realize the collection of more multipotency consumption table device data 5 road RS232 interface conversion on plate with SBC6020 subcompact board computer; Mini pci interface increases the data that corresponding module can realize wireless mode pick-up transducers net.This locality utilizing CF card slot on plate to realize data stores.The remote transmission of data can pass through Ethernet interface, also can increase corresponding wireless communication module by Mini pci interface and realize.
Specifically, what gateway of the present invention adopted is based on the embedded board computer SBC6020:CPU kernel loving special Mel (Atmel) company AT91SAM9G20 technical grade processor is ARM 926EJ-S, and operating frequency is about 400MHz; Have 7 road serial ports, wherein 6 tunnels are RS232, and 1 tunnel is RS485, have 1 road fieldindustrybus interface CAN-Bus2.0; Possess 2 Ethernet interfaces, one of them network interface card is on AT91SAM9G20 chip, and another is on single board computer; There are 3 tunnel USB interface, wherein 1 tunnel be USB from equipment interface, 2 tunnels are USB main equipment interfaces; AT91SAM9G20 chip there are 4 tunnel analog/digital conversion controllers; It also has 1 road CF card slot.SBC6020 single board computer have employed the most reliable healthy and strong industrial physical structure, multiple industrial bus control interface, can under-10 DEG C ~ 70 DEG C temperature environments steady operation, the commercial Application environment of various condition harshness can be met, meet commercial Application requirement completely, its hardware configuration is as shown in table 1:
Table 1
RS-485 stablizes with its transfer of data, and the advantages such as reliability is high, transmitting range is far away, speed is fast, antijamming capability is strong, with low cost, flexible and convenient to use, Electro Magnetic Compatibility is good are used widely in many industrial circles such as intelligent management, On-line Control, geological prospecting.This problem gateway, to gather energy consumption data for case, adopts RS485 networking mode between energy consumption table and gateway, in order to gather more energy consumption table data, add the peripheral circuit as (2-2)
[23], the RS232 signal of COM0, COM2, COM3, COM4, COM5 is converted to RS485 signal, can carry 32 RS485 sensor devices under each serial ports, 6 serial ports can be total to carry 192.
Except with except RS485 bus mode pick-up transducers data, the standard modules such as Z-Wave, Zigbee, Blue-tooth can also be increased on MiniPCI interface, by wireless networking mode image data.
In order to data breakpoint after realizing fault recovery resumes, the data of gateway collection not only will push to data center, and should carry out this locality to the data in certain hour section and preserve.The design in gateway data storehouse of the present invention is based on relevant database, and relevant database is based upon the database on relational model basis, carrys out the data in process database by means of the mathematical concepts such as algebra of sets and method.
Lightweight embedded database sqlite3 has been used in the storage of local data, and its source code is C, and increases income completely.Sqlite3 has following characteristics: (1) supports ACID things, ACID refers to the abbreviation of four fundamentals that database things correctly performs, and comprises atomicity (Atomicity), consistency (Consistency), isolation (Isolation), persistence (Durability); (2) zero configuration, configures without the need to setup and manage; (3) database that in single disk file one is complete is stored in; (4) database file freely can be shared at the machinery compartment of different byte order; (5) supporting database size is to 2TB; (6) enough little, whole source code roughly 3 ten thousand row; (7) operation of most of databases to data than popular is at present fast; (8) independent, do not have volume to be dependence; (9) sql like language achieves ASNI SQL92 standard to a great extent.
During resource-constrained in for Internet of Things sensor selection problem cryptographic algorithm, not only will consider safety factor, the computational efficiency of algorithm becomes one of important considerations.
The present invention takes full advantage of the serial port resource on SBC6020 single board computer, can gather the reading of more multipotency consumption table.Mini pci interface inserts different communication module hardware, this data gateway can the data of other applications of wireless collection, utilize the thought of hierarchical design, have devised the conventional data gateway under an Internet of Things applied environment, can the change of adaption demand preferably, simultaneously for the real time data acquisition impact that cryptographic algorithm is brought, based on lightweight encryption algorithm KLEIN, propose improvement project.
The structure of KLEIN algorithm typically substitutes permutation network, block length is 64, supports 64/80/90 3 kinds of key length, corresponding 12/16/20 takes turns encryption respectively, often take turns and obscured order formed by InvAddRoundKey, Nibble replacement, Nibble displacement, Nibble, end wheel carries out whitening operation.Be 64 with block length, iteration wheel number be 12 KLEIN-64 be example, KLEIN round function design details is described:
(1) InvAddRoundKey (AddRoundKey): 64 input states are carried out XOR by turn with expanded keys;
(2) Nibble replacement (SubNibbles): AK is exported the S box operation that 4*4 is searched in execution for 16 times, S box has reciprocal characteristics;
(3) Nibble displacement (RotateNibbles): move to left 64 of SN outputs 2 bytes;
(4) Nibble obscures (MixNibbles): by the 4*2 Matrix Multiplication of 8 byte input compositions with the row confusion matrix M [45] of AES, obtain 64 outputs.Different with AES, last of KLEIN is taken turns does not have delete columns to obscure operation.
KLEIN cipher key spreading by being shifted, XOR, search S box parts and form.64 initial keys are divided into 32 bit two parts by left and right, perform 1 byte manipulation that moves to left respectively; Shift left operation right half part exports the 3rd byte XOR cipher key spreading wheel constant, obtains round key and exports left 32; The result the 2nd of shift left operation left and right two parts output phase XOR, 3 bytes search the S box of 4 4*4, obtain round key and export right 32.
In the wheel encryption and cipher key spreading of KLEIN algorithm, all relate to shifting function, wherein wheel encryption cycle moves to left 2 bytes, and round key Extended Cyclic moves to left 1 byte, is a kind of shifting function of character-oriented nodal pattern.Such shifting function, software simulating is very efficient.For existing algebraically bypass attack and selection expressly differential attack, the present invention proposes a kind of safeguard measure to KLEIN algorithm, is called R-KLEIN algorithm, strengthens the fail safe of KLEIN algorithm, as shown in Fig. 6-1 and Fig. 6-2.
To the shifting function in original KLEIN algorithm, be no longer 2 fixing bytes, but movable random position r (16≤r≤63).But the problem that such operation brings a communicating pair random number synchronous, there are following 3 kinds of solutions: (a) side that communicates produces random number sequence in advance, communication the opposing party is sent to by safe lane, every encryption and decryption once just leaves out a random number, but this scheme is real not in actual applications; B () first encryption and decryption random number produces at key agreement phase, in fact each encryption and decryption only has 7 bytes to be valid data, 8th byte is the random number that the encryption side inserted generates in advance, for encryption and decryption next time, but effective speed is caused to only have 87.5% like this; C () first encryption and decryption random number produces at key agreement phase, the random number of later encryption and decryption is exactly that the 8th byte of encrypting the ciphertext produced last time is mapped as one 16---and the number of 63, its mapping method can be defined by user oneself.
In such scheme, the 3rd scheme is best, and shifting function is in place, remains replacement operator; But with regard to byte, when shifting function is integer byte, be the equal of replacement operator; When shifting function is not integer byte, be equivalent to replacement operation.In this operating process, both likely there is replacement operator, and also likely there is replacement operation, is a kind of uncertain state.In like manner, in cipher key spreading operation, key shifting function is not a byte but the half of encryption shifting function figure place r, i.e. r/2.
Shifting function software simulating is more consuming time.Original KLEIN algorithm, shifting function is the reason of integer byte, exactly in order to ensure the efficiency of running software.At present for the attack of KLEIN-64 algorithm, occur at most taking turns encryption effectively to 8, therefore, lower in security requirement, the occasion that requirement of real-time is higher, can reduce encryption iteration number of times to reach the requirement of real-time.
To the analysis of block cipher, mainly analyze the conversion of nonlinear operation S box, what require linear operation part is clearly concrete, to the improvement of KLEIN algorithm, in the shifting function of linear operation, employ the method for random number, make to lose effect to the method that block cipher is analyzed at present.The method still can not use KLEIN algorithm, effective equally for general block cipher.
Technique scheme is one embodiment of the present invention, for those skilled in the art, on the basis that the invention discloses application process and principle, be easy to make various types of improvement or distortion, and the method be not limited only to described by the above-mentioned embodiment of the present invention, therefore previously described mode is just preferred, and does not have restrictive meaning.
Claims (9)
1. an internet of things data acquisition gateway, is characterized in that: described internet of things data acquisition gateway comprises communication hardware level of abstraction, application layer communication protocol layer, protocol adaptation layers, protocol conversion key-course and man-machine interface from bottom to up successively;
Described communication hardware level of abstraction: by abstract for various communication mode be communication module;
Described application layer communication protocol layer: the data of communication hardware level of abstraction are encapsulated according to the application layer communication protocol of its correspondence, packaged packet is submitted to protocol adaptation layers and resolves;
Described protocol adaptation layers: the packet that application layer communication protocol layer is provided, after carrying out identification parsing, then submits to the protocol conversion module of protocol conversion key-course according to protocol tree;
Described protocol conversion key-course: protocol adaptation layers, application layer communication protocol layer are controlled, and provides to man-machine interface layer the service of calling;
Man-machine interface: the service directly using protocol conversion key-course to provide, carries out visual management to internet of things data acquisition gateway.
2. internet of things data acquisition gateway according to claim 1, is characterized in that: described communication hardware level of abstraction comprises short-range communications module and remote communication module;
Short-range communications module comprises the abstract of various short-haul connections mode;
Described remote communication module comprises the abstract of various telecommunication mode.
3. internet of things data acquisition gateway according to claim 2, is characterized in that: described application layer communication protocol layer comprises DLT645, CJT188, Modbus, FTP and HTTP.
4. internet of things data acquisition gateway according to claim 3, is characterized in that: described protocol adaptation layers comprises protocol conversion module and protocol resolution module;
Described protocol conversion module is submitted to protocol resolution module after changing various application protocol data bag;
Described protocol resolution module is resolved packet.
5. internet of things data acquisition gateway according to claim 4, is characterized in that: described protocol conversion key-course comprises remote supervision module, control module, memory module and security module; According to demand, can increase, removing module;
Described remote supervision module receives the order of the management node that man-machine interface is sent;
Described control module directly manages described communication hardware level of abstraction, application layer communication protocol layer, protocol adaptation layers;
Valid data after unpacking packet are carried out this locality and store by described memory module;
Described security module is carried out encryption and decryption process the packet after protocol conversion, is set up secure communication connection and consult password.
6. internet of things data acquisition gateway according to claim 5, is characterized in that: described remote supervision module and control module run with server mode.
7. internet of things data acquisition gateway according to claim 6, is characterized in that: the database in described memory module adopts lightweight embedded database sqlite3.
8. the encryption method of the arbitrary described internet of things data acquisition gateway employing of claim 1 to 7, is characterized in that: described method is that the shifting function in KLEIN algorithm is designed to movable random position r, 16≤r≤63.
9. encryption method according to claim 8, it is characterized in that: in described encryption method, first encryption and decryption random number produces at key agreement phase, and the random number of later encryption and decryption is the number that the 8th byte of the ciphertext that last time, encryption produced is mapped as between 16 to 63.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816850.9A CN104468609A (en) | 2014-12-23 | 2014-12-23 | Data collection gateway of internet of things and data encryption method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816850.9A CN104468609A (en) | 2014-12-23 | 2014-12-23 | Data collection gateway of internet of things and data encryption method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104468609A true CN104468609A (en) | 2015-03-25 |
Family
ID=52913981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410816850.9A Pending CN104468609A (en) | 2014-12-23 | 2014-12-23 | Data collection gateway of internet of things and data encryption method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104468609A (en) |
Cited By (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105183452A (en) * | 2015-08-06 | 2015-12-23 | 福州闽嘉电力科技有限公司 | Spring AOP based remote protocol service middleware for monitoring power distribution device |
| CN105610706A (en) * | 2016-03-09 | 2016-05-25 | 北京科技大学 | Internet-of-things control system oriented intelligent gateway platform |
| CN105933992A (en) * | 2016-06-28 | 2016-09-07 | 合肥润东通信科技股份有限公司 | Sensor wireless data gateway application system |
| CN106205105A (en) * | 2016-08-05 | 2016-12-07 | 武汉丰天鼎业信息网络有限公司 | The data concentrator of multiple data form |
| CN106656779A (en) * | 2017-02-16 | 2017-05-10 | 青岛高校信息产业股份有限公司 | Convergence gateway and access method thereof |
| CN106657275A (en) * | 2016-11-23 | 2017-05-10 | 成都秦川科技发展有限公司 | Internet of Things sensing module with information processing based on narrow-band communication |
| CN106685815A (en) * | 2017-01-04 | 2017-05-17 | 上海建坤信息技术有限责任公司 | Multi - protocol hardware acquisition gateway system |
| CN106790372A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | Internet of Things sensing module based on broadband connections |
| CN106790605A (en) * | 2016-12-29 | 2017-05-31 | 深圳新基点智能股份有限公司 | A kind of things-internet gateway system and its implementation |
| CN106790370A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | The Internet of Things sensing module of the information treatment based on broadband connections |
| CN106790373A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | Using the calorimeter of Internet of Things propagated sensation module |
| CN106790371A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | The Internet of Things sensing module of information treatment |
| CN106790375A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | Internet of Things propagated sensation module based on narrow band communication |
| CN106803788A (en) * | 2015-11-26 | 2017-06-06 | 财团法人资讯工业策进会 | network packet management server and network packet management method thereof |
| CN106997179A (en) * | 2016-01-26 | 2017-08-01 | 深圳市领耀东方科技股份有限公司 | The method and intelligence control system of intelligent control platform management equipment |
| CN107707465A (en) * | 2017-09-22 | 2018-02-16 | 广东工业大学 | A kind of multifunctional industrial things-internet gateway device |
| CN107888488A (en) * | 2016-09-30 | 2018-04-06 | 西门子（中国）有限公司 | Intelligent gateway and its method |
| CN108023952A (en) * | 2017-12-04 | 2018-05-11 | 西安电子科技大学 | A kind of modularization Internet of Things application rapid build platform combined based on cloud and mist |
| CN108055350A (en) * | 2017-12-29 | 2018-05-18 | 江苏徐工信息技术股份有限公司 | A kind of Internet of Things data intelligent acquisition analysis method |
| CN108173751A (en) * | 2017-12-12 | 2018-06-15 | 开放物联（北京）科技发展有限公司 | A kind of intelligent networking gateway based on national standard |
| CN108183855A (en) * | 2017-12-12 | 2018-06-19 | 开放物联（北京）科技发展有限公司 | The design method of smart home home gateway software architecture based on Internet of Things |
| CN108293017A (en) * | 2015-12-08 | 2018-07-17 | 霍尼韦尔国际公司 | Device and method for using Internet of Things gras generally recognized as safe gateway |
| CN108769066A (en) * | 2018-06-27 | 2018-11-06 | 安徽国讯芯微科技有限公司 | A kind of full stack micro-system of edge calculations |
| CN109218173A (en) * | 2018-08-16 | 2019-01-15 | 共享智能铸造产业创新中心有限公司 | The data interception and resolver and its working method of 645 communication protocol ammeter of DL/T |
| CN109803026A (en) * | 2019-03-15 | 2019-05-24 | 山东普奥智能软件科技有限公司 | Internet of Things network communication system |
| CN110138655A (en) * | 2019-07-02 | 2019-08-16 | 佳源科技有限公司 | A kind of comprehensive energy gateway based on Internet of Things |
| CN111010338A (en) * | 2019-12-23 | 2020-04-14 | 深圳物控智联科技有限公司 | Internet of things gateway |
| CN111163181A (en) * | 2020-04-01 | 2020-05-15 | 金陵科技学院 | Lightweight intelligent agricultural heterogeneous Internet of things management system |
| CN111176184A (en) * | 2020-01-07 | 2020-05-19 | 孙江宁 | Energy consumption monitoring and management system and method for energy-just room and computer equipment |
| CN111385332A (en) * | 2018-12-29 | 2020-07-07 | 顺丰科技有限公司 | Internet of things equipment, Internet of things platform access method and equipment |
| CN111866165A (en) * | 2017-12-06 | 2020-10-30 | 上海麦腾物联网技术有限公司 | Communication system of cross-platform Internet of things embedded equipment |
| CN112073463A (en) * | 2020-08-06 | 2020-12-11 | 珠海格力电器股份有限公司 | Rental equipment control method, system, device, equipment and storage medium |
| WO2020248265A1 (en) * | 2019-06-14 | 2020-12-17 | 胡永生 | Smart internet-of-things data encoding system |
| CN113452775A (en) * | 2021-06-25 | 2021-09-28 | 福建网能科技开发有限责任公司 | System and method for acquiring data by external-hanging type Internet of things gateway auxiliary energy controller |
| CN113950089A (en) * | 2021-09-27 | 2022-01-18 | 中电科思仪科技(安徽)有限公司 | Building mobile cellular network quality real-time monitoring cloud platform |
| CN117938553A (en) * | 2024-03-25 | 2024-04-26 | 四川开物信息技术有限公司 | Communication conversion system |
-
2014
- 2014-12-23 CN CN201410816850.9A patent/CN104468609A/en active Pending
Cited By (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105183452B (en) * | 2015-08-06 | 2020-09-25 | 福州闽嘉电力科技有限公司 | Spring AOP-based remote protocol service system for monitoring power distribution equipment |
| CN105183452A (en) * | 2015-08-06 | 2015-12-23 | 福州闽嘉电力科技有限公司 | Spring AOP based remote protocol service middleware for monitoring power distribution device |
| CN106803788A (en) * | 2015-11-26 | 2017-06-06 | 财团法人资讯工业策进会 | network packet management server and network packet management method thereof |
| CN108293017B (en) * | 2015-12-08 | 2022-03-15 | 霍尼韦尔国际公司 | Apparatus and method for using an internet of things edge security gateway |
| CN108293017A (en) * | 2015-12-08 | 2018-07-17 | 霍尼韦尔国际公司 | Device and method for using Internet of Things gras generally recognized as safe gateway |
| CN106997179A (en) * | 2016-01-26 | 2017-08-01 | 深圳市领耀东方科技股份有限公司 | The method and intelligence control system of intelligent control platform management equipment |
| CN105610706B (en) * | 2016-03-09 | 2018-08-17 | 北京科技大学 | A kind of intelligent gateway platform of internet of things oriented control system |
| CN105610706A (en) * | 2016-03-09 | 2016-05-25 | 北京科技大学 | Internet-of-things control system oriented intelligent gateway platform |
| CN105933992A (en) * | 2016-06-28 | 2016-09-07 | 合肥润东通信科技股份有限公司 | Sensor wireless data gateway application system |
| CN106205105A (en) * | 2016-08-05 | 2016-12-07 | 武汉丰天鼎业信息网络有限公司 | The data concentrator of multiple data form |
| CN107888488A (en) * | 2016-09-30 | 2018-04-06 | 西门子（中国）有限公司 | Intelligent gateway and its method |
| CN106790370A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | The Internet of Things sensing module of the information treatment based on broadband connections |
| CN106790373A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | Using the calorimeter of Internet of Things propagated sensation module |
| CN106790371A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | The Internet of Things sensing module of information treatment |
| CN106790375A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | Internet of Things propagated sensation module based on narrow band communication |
| CN106657275A (en) * | 2016-11-23 | 2017-05-10 | 成都秦川科技发展有限公司 | Internet of Things sensing module with information processing based on narrow-band communication |
| CN106790372A (en) * | 2016-11-23 | 2017-05-31 | 成都秦川科技发展有限公司 | Internet of Things sensing module based on broadband connections |
| CN106790605B (en) * | 2016-12-29 | 2021-03-02 | 深圳新基点智能股份有限公司 | Internet of things gateway system and implementation method thereof |
| CN106790605A (en) * | 2016-12-29 | 2017-05-31 | 深圳新基点智能股份有限公司 | A kind of things-internet gateway system and its implementation |
| CN106685815A (en) * | 2017-01-04 | 2017-05-17 | 上海建坤信息技术有限责任公司 | Multi - protocol hardware acquisition gateway system |
| CN106656779A (en) * | 2017-02-16 | 2017-05-10 | 青岛高校信息产业股份有限公司 | Convergence gateway and access method thereof |
| CN107707465A (en) * | 2017-09-22 | 2018-02-16 | 广东工业大学 | A kind of multifunctional industrial things-internet gateway device |
| CN108023952A (en) * | 2017-12-04 | 2018-05-11 | 西安电子科技大学 | A kind of modularization Internet of Things application rapid build platform combined based on cloud and mist |
| CN108023952B (en) * | 2017-12-04 | 2020-08-18 | 西安电子科技大学 | Cloud and mist combination-based modularized Internet of things application rapid construction platform |
| CN111866165A (en) * | 2017-12-06 | 2020-10-30 | 上海麦腾物联网技术有限公司 | Communication system of cross-platform Internet of things embedded equipment |
| CN108183855A (en) * | 2017-12-12 | 2018-06-19 | 开放物联（北京）科技发展有限公司 | The design method of smart home home gateway software architecture based on Internet of Things |
| CN108173751A (en) * | 2017-12-12 | 2018-06-15 | 开放物联（北京）科技发展有限公司 | A kind of intelligent networking gateway based on national standard |
| CN108055350A (en) * | 2017-12-29 | 2018-05-18 | 江苏徐工信息技术股份有限公司 | A kind of Internet of Things data intelligent acquisition analysis method |
| CN108769066A (en) * | 2018-06-27 | 2018-11-06 | 安徽国讯芯微科技有限公司 | A kind of full stack micro-system of edge calculations |
| CN109218173A (en) * | 2018-08-16 | 2019-01-15 | 共享智能铸造产业创新中心有限公司 | The data interception and resolver and its working method of 645 communication protocol ammeter of DL/T |
| CN111385332A (en) * | 2018-12-29 | 2020-07-07 | 顺丰科技有限公司 | Internet of things equipment, Internet of things platform access method and equipment |
| CN109803026A (en) * | 2019-03-15 | 2019-05-24 | 山东普奥智能软件科技有限公司 | Internet of Things network communication system |
| WO2020248265A1 (en) * | 2019-06-14 | 2020-12-17 | 胡永生 | Smart internet-of-things data encoding system |
| CN110138655A (en) * | 2019-07-02 | 2019-08-16 | 佳源科技有限公司 | A kind of comprehensive energy gateway based on Internet of Things |
| CN110138655B (en) * | 2019-07-02 | 2020-05-05 | 佳源科技有限公司 | Comprehensive energy service gateway based on Internet of things |
| CN111010338A (en) * | 2019-12-23 | 2020-04-14 | 深圳物控智联科技有限公司 | Internet of things gateway |
| CN111176184A (en) * | 2020-01-07 | 2020-05-19 | 孙江宁 | Energy consumption monitoring and management system and method for energy-just room and computer equipment |
| CN111163181A (en) * | 2020-04-01 | 2020-05-15 | 金陵科技学院 | Lightweight intelligent agricultural heterogeneous Internet of things management system |
| CN111163181B (en) * | 2020-04-01 | 2022-10-04 | 金陵科技学院 | Lightweight intelligent agricultural heterogeneous Internet of things management system |
| CN112073463A (en) * | 2020-08-06 | 2020-12-11 | 珠海格力电器股份有限公司 | Rental equipment control method, system, device, equipment and storage medium |
| CN112073463B (en) * | 2020-08-06 | 2021-10-26 | 珠海格力电器股份有限公司 | Rental equipment control method, system, device, equipment and storage medium |
| CN113452775A (en) * | 2021-06-25 | 2021-09-28 | 福建网能科技开发有限责任公司 | System and method for acquiring data by external-hanging type Internet of things gateway auxiliary energy controller |
| CN113950089A (en) * | 2021-09-27 | 2022-01-18 | 中电科思仪科技(安徽)有限公司 | Building mobile cellular network quality real-time monitoring cloud platform |
| CN117938553A (en) * | 2024-03-25 | 2024-04-26 | 四川开物信息技术有限公司 | Communication conversion system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104468609A (en) | Data collection gateway of internet of things and data encryption method | |
| Zeng et al. | Blockchain technology for information security of the energy internet: Fundamentals, features, strategy and application | |
| Qarabsh et al. | Smart grid in the context of industry 4.0: an overview of communications technologies and challenges | |
| CN109302491A (en) | A kind of industry internet framework and its operation method based on block chain | |
| CN106790605A (en) | A kind of things-internet gateway system and its implementation | |
| CN107295092A (en) | A kind of people's livelihood service mobile solution platform system based on cloud computing | |
| CN103413094B (en) | A kind of remote measurement encryption system being applicable to spacecraft CTU | |
| CN109815051A (en) | The data processing method and system of block chain | |
| CN105553934B (en) | Based on SAAS layers of omnipotent decoding methods of EAB of cloud platform | |
| CN102999850A (en) | Intelligent service shop application method | |
| CN109194491A (en) | A kind of password evaluation and test pilot system and password evaluate and test test method | |
| CN105305615A (en) | Wireless test and data transmission system monitoring method | |
| CN105072636A (en) | Wireless testing and data transmission system | |
| CN106205090A (en) | A kind of electric power network real-time monitoring system and control method thereof | |
| Dong et al. | Research on abnormal detection of ModbusTCP/IP protocol based on one-class SVM | |
| CN113205345A (en) | Agricultural product certificate tracing system based on Ether house block chain technology and tracing method thereof | |
| Zhao et al. | Performance analysis of quantum key distribution technology for power business | |
| CN117955096A (en) | Automatic power grid dispatching method based on data security technology | |
| CN206097448U (en) | A hand -held type data acquisition device for transformer substation | |
| CN101593113B (en) | Interface application system and method for realizing data interface by WEB SERVICE | |
| CN104301319A (en) | Intelligent ammeter encryption management device and data encryption protection method | |
| CN117971963A (en) | Private domain distributed data collaborative equipment | |
| Chen et al. | Cyber security for multi-station integrated smart energy stations: Architecture and solutions | |
| CN107948144B (en) | Threat processing system based on intelligent power grid information security detection | |
| Ooi et al. | A flexible and reliable internet-of-things solution for real-time production tracking with high performance and secure communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |