CN107948145A - A kind of wireless internet of things data safety Intelligent Transportation Systems - Google Patents

A kind of wireless internet of things data safety Intelligent Transportation Systems Download PDF

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Publication number
CN107948145A
CN107948145A CN201711148189.9A CN201711148189A CN107948145A CN 107948145 A CN107948145 A CN 107948145A CN 201711148189 A CN201711148189 A CN 201711148189A CN 107948145 A CN107948145 A CN 107948145A
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China
Prior art keywords
modules
terminal
microcontroller
intelligent transportation
transportation systems
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Pending
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CN201711148189.9A
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Chinese (zh)
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不公告发明人
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Chengdu Zhengguangheng Electronic Technology Co Ltd
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Chengdu Zhengguangheng Electronic Technology Co Ltd
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Priority to CN201711148189.9A priority Critical patent/CN107948145A/en
Publication of CN107948145A publication Critical patent/CN107948145A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network 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
    • H04L63/0435Network 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 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/30Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3066Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention relates to technology of Internet of things, specially a kind of wireless internet of things data safety Intelligent Transportation Systems, a kind of wireless internet of things data safety Intelligent Transportation Systems, including collection terminal, convergence terminal, wireless routing and terminal computer, wherein described collection terminal includes sensing equipment, microcontroller and 433 sending modules, sensing equipment couples with the input terminal of microcontroller, and the output terminal of microcontroller couples with 433 sending modules;The convergence terminal includes 433 receiving modules, ucos system modules and network interface, and 433 receiving modules couple with the input terminal of ucos system modules, the output terminal connection network interface of ucos system modules.The present invention realizes the Quick Acquisition and real-time Transmission of sensing data, and elliptic curve cryptography technology is combined to the data transmission mechanism of structure safety with symetric key cryptography, realizes in safety of secret data transmission of the field transmission range more than 1200 meters.

Description

A kind of wireless internet of things data safety Intelligent Transportation Systems
Technical field
The present invention relates to technology of Internet of things, is specially a kind of wireless internet of things data safety Intelligent Transportation Systems.
Background technology
Internet of Things can adapt to the dynamic change of environment, provide a user the service of ubiquitous " people-oriented ", have sense Know, transmit and using etc. function.It is except having the characteristics that some (for example, with applying closely related, rule of wireless sensor network Mould is huge etc.) outside, also with some unique distinctions of itself, it may be summarized to be three aspects:First, the isomery of network and node Property it is all very strong, cover various types of networks, both comprising the very strong equipment of the computing capabilitys such as computer, also comprising sensor, The very weak facility of the computing capabilitys such as electronic tag;Second, the safety and reliability of requirement height, because " computing power " is embedding Daily life is entered, most applications in Internet of Things can be related to individual privacy or in-house secret, have Even influence whether the safety of life and property of user;Third, " people-oriented ", requires intelligence degree very high, it is necessary to scene Perceive the support of the technology such as (context) (context-awareness), artificial intelligence.
The content of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of wireless internet of things data safety Intelligent Transportation Systems, Realize the Quick Acquisition and real-time Transmission of sensing data, and elliptic curve cryptography technology has been combined with symetric key cryptography To build safe data transmission mechanism, realize in safety of secret data transmission of the field transmission range more than 1200 meters.
To realize above-mentioned technical purpose, scheme provided by the invention is:A kind of wireless internet of things data safety intelligent transportation System, including collection terminal, convergence terminal, wireless routing and terminal computer, wherein the collection terminal includes sensing equipment, monolithic Machine and 433 sending modules, sensing equipment couple with the input terminal of microcontroller, and the output terminal of microcontroller couples with 433 sending modules; The convergence terminal includes 433 receiving modules, ucos system modules and network interface, and 433 receiving modules are defeated with ucos system modules Enter end connection, the output terminal connection network interface of ucos system modules.
Moreover, the microcontroller is the microcontroller of STC12LE5A60S2 models.
Moreover, 433 sending module and 433 receiving modules use the wireless data communication of 433MHz frequency ranges
Moreover, the network interface is Internet, GSM, CDMA, GPRS or 3G network mouth.
The present invention also provides a kind of encryption method based on above-mentioned wireless internet of things data safety Intelligent Transportation Systems, including Following steps.
Step 1, an elliptic curve is built by user, and a point P is randomly selected on the elliptic curve, and secret is protected Deposit, then user randomly selects entropy random number a one high, and calculates the random number and the value of the dot product aP of elliptic curve point P, connects Get off, the value of aP and P are written in microcontroller by user in confidence.
Step 2, microcontroller randomly selects entropy random number b one high, and the value for calculating abP is close as symmetric cryptography, calculates The key material bP of shared key is generated, then using shared session key abP and EDS symmetric encipherment algorithm to the number that collects According to being encrypted.
Step 3, encryption data and key material bP are written in data field and are transmitted.
Step 4, microcontroller periodically choose high entropy random number b ' again, calculate new shared session key ab ' P and new Key material b ' P, gathered data is then encrypted using new session key ab ' P, then by encryption information and new key material B ' P, which are written in data field, to be transmitted.
Moreover, the data field front portion in step 3 meets lead code, synchronous code, length field and address field, institute State data field afterbody and connect the heavy remaining check code of 16 circulations.
Advantage of the invention is that:1st, it is 1200 meters remote to realize transmission range on field by using 433 frequency ranges Distance Transmission, much larger than at present in Internet of Things secure communication, is typically smaller than 200 meters of gathered data in the case of unobstructed Farthest transmission range.2nd, the power consumption of system is effectively reduced using saving operation mode, extends the service life of battery.3rd, will Public key cryptography encryption technology is combined with symetric key cryptography, realizes the safe transmission of confidential data;Session key Regularly update, effectively reduce the probability that node is attacked.
Brief description of the drawings
Fig. 1 is the system architecture diagram of the present invention.
Fig. 2 is the working mode figure of the present invention.
Fig. 3 is data security transmission and the drawing of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and embodiments.
The present embodiment provides a kind of wireless internet of things data safety Intelligent Transportation Systems, as shown in Figure 1, including collection terminal, Convergence terminal, wireless routing and terminal computer, wherein the collection terminal includes sensing equipment, microcontroller (can use The microcontroller of STC12LE5A60S2 models) and 433 sending modules, sensing equipment couple with the input terminal of microcontroller, microcontroller Output terminal couples with 433 sending modules;The convergence terminal includes 433 receiving modules, ucos system modules and network interface, and 433 connect Receive module with the input terminal of ucos system modules to couple, the output terminal connection network interface of ucos system modules.
Further, above-mentioned 433 sending module and 433 receiving modules use the wireless data communication of 433MHz frequency ranges.
Further, above-mentioned network interface is Internet, GSM, CDMA, GPRS or 3G network mouth.
The data transfer idiographic flow of the present invention is as follows:The data sending that will be collected in collection terminal, sensing equipment first Onto microcontroller, the shared session key of microcontroller generation, and the data collected are encrypted using the key, then it will add The key material of ciphertext data and the shared session key of generation is transferred to 433 sending modules.The letter that 433 sending modules will receive Breath is then forwarded to 433 receiving modules of convergence terminal.Convergence terminal uses Internet, GSM, CDMA, GPRS, 3G network etc. to pass Encryption data and key material are sent on terminal computer by defeated mode.Terminal calculates shared key and uses the secret key decryption Encryption data, so as to obtain gathered data.
The present invention realizes the communication of wireless temperature-measuring terminal gathered data in 433MHz frequency ranges (exempting to apply), and will adopt The scene temperature data collected are sent to wireless convergence terminal in real time.Peak power output can reach 30dBm, field transmission distance From up to 1200 meters.Current existing similar system, in the case of unobstructed, farthest transmission range is 200 meters.On in addition, State in secure transmission system framework, all kinds of front end signals can accomplish real-time Transmission, real time on-line monitoring, and can be by setting time Pass data.
The operating mode high efficiency smart of the present invention.The pattern can effectively reduce the consumption of battery, it mainly includes four kinds of moulds Formula:Sleep mode, idle pulley, emission mode and reception pattern, as shown in Figure 2.Can be into addition to sleep mode, between each pattern Row intelligence switching.In addition, whether the operating mode can enter sleep mode with intelligent decision, it is preferably minimized power consumption.Dormancy mould It is least in power-consuming under formula, can intelligence judge whether enter resting state, effectively to reduce power consumption.In addition, other Three models, Intelligent conversion can be carried out between idle pulley, emission mode and reception pattern, without manually participating in, to reach effectively energy saving Purpose.The operating mode has the highly sensitive feature of low-power, and can effectively extend battery life.
The present invention provides a kind of encryption method based on above-mentioned wireless internet of things data safety Intelligent Transportation Systems, including such as Lower step.
Step 1, by user build an elliptic curve (arbitrary elliptic curve), and on the elliptic curve with Machine chooses a point P, and secret preserves, and then user randomly selects entropy random number a one high, and it is bent with ellipse to calculate the random number The value of the dot product aP of line point P, next, user (is manually write, other do not know the interior of write-in per capita by the user in confidence Hold) value of aP and P are written in microcontroller.
Step 2, microcontroller randomly selects entropy random number b one high, and the value for calculating abP is close as symmetric cryptography, calculates The key material bP of shared key is generated, then using shared session key abP and EDS symmetric encipherment algorithm to the number that collects According to being encrypted.
Step 3, encryption data and key material bP are written in data field and are transmitted.
Step 4, microcontroller periodically choose high entropy random number b ' again, calculate new shared session key ab ' P and new Key material b ' P, gathered data is then encrypted using new session key ab ' P, then by encryption information and new key material B ' P, which are written in data field, to be transmitted.
Further, the data field front portion in step 3 connects lead code, synchronous code, length field and address word Section, the data field afterbody connect the heavy remaining check code of 16 circulations, as shown in Figure 3.
The data security transmission mechanism of the present invention, is that public key cryptography technology is combined with symetric key cryptography.It is first It will be first stored in for the key material for generating session key in microcontroller, and it is close using D-H based on elliptic curve cryptosystem Key negotiation mechanism generates session key.Then using the session key and EDS symmetric encipherment algorithms of generation to the data that collect It is encrypted.Encrypted data and session key raw material are finally sent to recipient.Legitimate receipt side receives above-mentioned After information, session key can be calculated according to the key material received and the secret information of preservation, so as to use the key Encryption information is decrypted, the data collected are obtained, to achieve the purpose that sensing data safe transmission.In addition, microcontroller can also be right Session key is regularly updated, so as to effectively reduce the probability attacked.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the principle of the present invention, some improvement or deformation can also be made, these are improved or deformation also should It is considered as protection scope of the present invention.

Claims (4)

1. a kind of wireless internet of things data safety Intelligent Transportation Systems, including collection terminal, convergence terminal, wireless routing and terminal Computer, it is characterised in that:The collection terminal includes sensing equipment, microcontroller and 433 sending modules, sensing equipment and microcontroller Input terminal couples, and the output terminal of microcontroller couples with 433 sending modules;The convergence terminal includes 433 receiving modules, ucos systems System module and network interface, 433 receiving modules couple with the input terminal of ucos system modules, the output terminal connection net of ucos system modules Mouthful.
A kind of 2. wireless internet of things data safety Intelligent Transportation Systems according to claim 1, it is characterised in that:The list Piece machine is the microcontroller of STC12LE5A60S2 models.
A kind of 3. wireless internet of things data safety Intelligent Transportation Systems according to claim 1, it is characterised in that:It is described 433 sending modules and 433 receiving modules use the wireless data communication of 433MHz frequency ranges.
A kind of 4. wireless internet of things data safety Intelligent Transportation Systems according to claim 1, it is characterised in that:The net Mouth is Internet, GSM, CDMA, GPRS or 3G network mouth.
CN201711148189.9A 2017-11-17 2017-11-17 A kind of wireless internet of things data safety Intelligent Transportation Systems Pending CN107948145A (en)

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CN201711148189.9A CN107948145A (en) 2017-11-17 2017-11-17 A kind of wireless internet of things data safety Intelligent Transportation Systems

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115379444A (en) * 2022-07-12 2022-11-22 广东技术师范大学 Wireless Internet of things data secure intelligent transmission system and encryption method
CN117201199A (en) * 2023-11-07 2023-12-08 中国人民解放军61660部队 Route safety protection method and system based on link aggregation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203352621U (en) * 2013-06-19 2013-12-18 中国地质大学(武汉) Wireless Internet of Things data safety intelligent transmission system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203352621U (en) * 2013-06-19 2013-12-18 中国地质大学(武汉) Wireless Internet of Things data safety intelligent transmission system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115379444A (en) * 2022-07-12 2022-11-22 广东技术师范大学 Wireless Internet of things data secure intelligent transmission system and encryption method
CN117201199A (en) * 2023-11-07 2023-12-08 中国人民解放军61660部队 Route safety protection method and system based on link aggregation
CN117201199B (en) * 2023-11-07 2024-02-20 中国人民解放军61660部队 Route safety protection method and system based on link aggregation

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Application publication date: 20180420