CN113630775A - Intelligent networking automobile safety communication system and method - Google Patents
Intelligent networking automobile safety communication system and method Download PDFInfo
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- CN113630775A CN113630775A CN202110842628.6A CN202110842628A CN113630775A CN 113630775 A CN113630775 A CN 113630775A CN 202110842628 A CN202110842628 A CN 202110842628A CN 113630775 A CN113630775 A CN 113630775A
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- 238000004891 communication Methods 0.000 title claims abstract description 42
- 230000006855 networking Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 35
- 238000012795 verification Methods 0.000 claims description 16
- 238000012790 confirmation Methods 0.000 claims description 4
- 238000013479 data entry Methods 0.000 claims description 4
- 238000013523 data management Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3297—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving time stamps, e.g. generation of time stamps
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/80—Wireless
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/84—Vehicles
Abstract
The invention discloses an intelligent networking automobile safety communication system and method, belonging to the technical field of automobile networking and comprising the following steps: the vehicle is respectively and electrically connected with the local server and the drive test unit, the base station is in network connection with the drive test unit, the drive test unit is electrically connected with the block chain, and the block chain and the local server are respectively in network connection with the cloud server. The invention provides an intelligent networking automobile safety communication system and method, which reduce the resource shortage situation of a server, improve the resource utilization rate, obviously reduce the storage and maintenance difficulty of a traditional vehicle networking communication model, solve the safety privacy problem, the efficiency problem and the data management problem under the existing communication model, roughly divide data into two types, improve the node utilization rate, have the characteristics of high efficiency, light storage, quick consensus, safety privacy and the like, and are suitable for the existing and future vehicle networking communication environments.
Description
Technical Field
The invention discloses an intelligent networking automobile safety communication system and method, and belongs to the technical field of Internet of vehicles.
Background
In recent years, intelligent networked automobiles are continuously updated and gradually become a trend. The basis of intelligent networking of automobiles is networking, and if the networking of automobiles and a reliable communication mechanism behind the networking of automobiles are not available, other functions of the automobiles completely lose significance. In recent years, the demand of various vehicle functions on networking is rapidly developed, various requirements on vehicle network communication are obviously improved, and after the intellectualization is improved, the vehicle network safety becomes very important. Based on the above, the invention provides a novel intelligent networking automobile safety communication model, aiming at increasing the safety and improving the communication efficiency.
The internet of vehicles is a core technology of intelligent networking of automobiles, and a basic architecture of the internet of vehicles is that vehicles are used as central nodes to broadcast information to surrounding nodes. A disadvantage of centralized nodes is that if a central node is hacked, all network nodes can be placed in insecure situations. At present, with the development of intelligent networking automobiles, the requirements on safety and stability are increasingly increased.
Disclosure of Invention
The invention aims to solve the problem of high risk of intermediate nodes in a traditional communication model, and provides an intelligent networking automobile safety communication system and method.
The invention aims to solve the problems and is realized by the following technical scheme:
an intelligent networked automobile safety communication system comprises: the vehicle is respectively and electrically connected with the local server and the drive test unit, the base station is in network connection with the drive test unit, the drive test unit is electrically connected with the block chain, and the block chain and the local server are respectively in network connection with the cloud server.
Preferably, the block chain includes a block header for storing a timestamp, a valid time, a Hash value of a current block, a root of the merkel tree and its stored information, and an index value of a previous block, and a block body for storing a plurality of data blocks.
Preferably, the data block includes: 1 data header and a plurality of data entries, the data header comprising: and checking the timestamp and the check Hash value of the data block.
An intelligent networking automobile safety communication method comprises the following steps:
when receiving the communication request data, acquiring vehicle node identity authentication data;
determining to generate a data block through the vehicle node identity authentication data;
determining a consensus mechanism in the starting area by generating a data block;
obtaining generation block command data by starting an in-region consensus mechanism;
and obtaining an updated data block through the generating block command data.
Preferably, the determining of the vehicle node identity authentication data to generate the data block includes:
determining whether the vehicle node identity authentication data passes verification:
if yes, determining to generate a data block, and executing the next step;
and if not, the vehicle node identity authentication data is acquired again.
Preferably, the determining the start region consensus mechanism by generating the data block includes:
judging whether the required data block is high-priority data:
if yes, the edge node is verified, and the starting area consensus mechanism is determined to be a starting multi-area consensus mechanism;
and if not, receiving verification for surrounding vehicles, and determining that the starting area consensus mechanism is a starting area consensus mechanism.
Preferably, the accepting verification of the edge node includes:
and (3) whether the verification is successful is accepted for the edge node:
if yes, starting a multi-region consensus mechanism;
and if not, discarding the data and reporting the suspicious node to the cloud server.
Preferably, the receiving the verification for the surrounding vehicle includes:
receiving verification of surrounding vehicles is successful:
if yes, starting a consensus mechanism in the region;
and if not, discarding the data and reporting the suspicious node to the cloud server.
Preferably, the start-up region consensus mechanism includes:
when receiving application information sent by a main node group, a representative node receives the information;
the representative node judges whether the information votes through the received information:
if yes, feeding back the confirmation of submission of the main node, and executing the next step;
otherwise, the communication request is denied, and the information receiving is finished.
The invention has the beneficial effects that:
the invention provides an intelligent networking automobile safety communication system and method, which reduce the resource shortage situation of a server, improve the resource utilization rate, obviously reduce the storage and maintenance difficulty of a traditional vehicle networking communication model, solve the safety privacy problem, the efficiency problem and the data management problem under the existing communication model, roughly divide data into two types, improve the node utilization rate, have the characteristics of high efficiency, light storage, quick consensus, safety privacy and the like, and are suitable for the existing and future vehicle networking communication environments.
Drawings
Fig. 1 is a structural diagram of an intelligent networked automobile safety communication system according to the present invention.
Fig. 2 is a block diagram of a block chain of an intelligent networked automobile safety communication system according to the invention.
Fig. 3 is a structural diagram of a data block of an intelligent networked automobile safety communication system according to the present invention.
Fig. 4 is a flowchart of an intelligent networking automobile safety communication method of the invention.
Fig. 5 is a flowchart of a consensus mechanism in the intelligent networked automobile safety communication method of the present invention.
Detailed Description
The invention is further illustrated below with reference to the accompanying figures 1-5:
the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a first embodiment of the present patent provides an intelligent networked automobile safety communication system based on the prior art, which includes: the vehicle is respectively and electrically connected with the local server and the drive test unit, the base station is in network connection with the drive test unit, the drive test unit is electrically connected with the block chain, and the block chain and the local server are respectively in network connection with the cloud server.
As shown in fig. 2-3, the block chain includes a block header for storing a timestamp, a valid time, a current block Hash value, a merkel root and its stored information, and an index value of a previous block, and a block body for storing a number of data blocks. Each data block has stored therein vehicle data (i.e., leaf nodes of the merkel tree). In the block structure mode, each block is related to the previous block, the information of the previous block is stored in the block, and meanwhile, the block is directly related to the next node, so that the node of a single block cannot be tampered, the tampered data cannot be matched with the information of the previous block and the next block, and authentication cannot be performed, and therefore the structure can guarantee the safety and the integrity of the data.
The data block contains 1 data header and a plurality of data entries. Wherein the data header contains a timestamp and a Hash value of the data block. The time stamp is the same as that in the block header, and the purpose of repeated storage is to search block header information without jumping out of a data block additionally when data bits are checked, so that the data checking efficiency is improved, data can be checked quickly when the data are spread in a block chain, and distribution and interaction of the data are facilitated. Each data entry contains a timestamp, a public key, metadata, and a data Hash value. The metadata includes low priority data and high priority data. The Hash value is a random value obtained by Hash hashing the timestamp, the public key and the metadata type, and generally, the value has uniqueness and can represent node data. And other nodes can directly adopt Hash check during check, so that the check speed is improved.
The block node only stores the data in the current block chain network, and immediately deletes the original data and stores the current data when the vehicle moves from the region to the next region. In addition, when the block is still in the valid time interval but the memory is full, only the data is deleted, and the Hash of the original block is reserved. When the vehicle moves in different areas, the road side unit forwarding server and the vehicle pseudonym information perform bidirectional authentication and then perform communication, and the authentication mode adopts an intra-industry main stream authentication mode, so that related professional practitioners can understand the method. The invention adopts the identity authentication mode of bidirectional authentication of the block chain distributed node and the server, reduces the dependence of the traditional authentication mode on the certificate, and effectively protects the node identity and the privacy.
Having described an intelligent networked automobile safety communication system, a method based on the system is described below, as shown in fig. 4, the method includes:
step S1, when the communication request data is received, the vehicle node identity authentication data is obtained;
step S2, determining and generating a data block through the vehicle node identity authentication data, wherein the specific content comprises:
determining whether the vehicle node identity authentication data passes verification:
if yes, determining to generate a data block, and executing the next step;
and if not, the vehicle node identity authentication data is acquired again.
Step S3, determining a consensus mechanism in the start region by generating a data block, where the specific content includes:
judging whether the required data block is high-priority data:
if yes, the edge node is verified, and the starting area consensus mechanism is determined to be a starting multi-area consensus mechanism;
and (3) whether the verification is successful is accepted for the edge node:
if yes, starting a multi-region consensus mechanism;
and if not, discarding the data and reporting the suspicious node to the cloud server.
If not, receiving verification for surrounding vehicles, and determining that the starting area consensus mechanism is a starting area consensus mechanism:
receiving verification of surrounding vehicles is successful:
if yes, starting a consensus mechanism in the region;
and if not, discarding the data and reporting the suspicious node to the cloud server.
As shown in fig. 5, the specific content of the region consensus mechanism is as follows:
when receiving application information sent by a main node group, a representative node receives the information;
the representative node judges whether the information votes through the received information:
if yes, feeding back the confirmation of submission of the main node, and executing the next step;
otherwise, the communication request is denied, and the information receiving is finished.
The consensus mechanism is a method for allowing vehicle nodes in a network to agree on each other, and is to ensure that each node can confirm communication and agree on the existence of each node and the communication sequence. The consensus mechanism needs to meet the requirement of data interaction in efficiency, simultaneously solves the problem of historical message storage of each vehicle node, and can perform fault-tolerant recovery when being invaded by a malicious node. The invention provides a dynamic consensus method formed by a consensus mechanism of multiple adjacent areas in an area, which is characterized by being in the Internet of vehicles.
The invention adopts a common Practical Byzantine Fault Tolerance (PBFT) algorithm in the industry on a regional consensus mechanism, and the consistency protocol, the view switching protocol and the check point protocol can realize data updating and error recovery. The master node group is composed of master nodes of each adjacent multiple areas and is responsible for sending application messages to surrounding area representative nodes, the surrounding area representative nodes send feedback confirmation back to the master node group after receiving the application messages, at the moment, the master node group receives votes of each representative node, when the votes of each representative node exceed a specified value (the votes can be set in a program according to actual conditions, generally 33.3% of votes of the nodes are approved, and the votes are suggested that the approval rate is 80% in consideration of the safety of the vehicle networking), the votes are regarded as being agreed, specified information is written into a public link, and the data information formally enters the network for circulation.
In step S4, the in-region consensus mechanism is activated to obtain the tile command data.
In step S5, an updated data block is obtained by generating the tile command data.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides an intelligence networking car safety communication system which characterized in that includes: the vehicle is respectively and electrically connected with the local server and the drive test unit, the base station is in network connection with the drive test unit, the drive test unit is electrically connected with the block chain, and the block chain and the local server are respectively in network connection with the cloud server.
2. The system of claim 1, wherein the block chain comprises a block header and a block body, the block header is used for storing a timestamp, an effective time, a Hash value of a current block, a root of the merkel tree and its stored information, and an index value of a previous block, and the block body is used for storing a plurality of data blocks.
3. The intelligent networked automobile safety communication system according to claim 2, wherein the data block comprises: 1 data header and a plurality of data entries, the data header comprising: and checking the timestamp and the check Hash value of the data block.
4. An intelligent networking automobile safety communication method is characterized by comprising the following steps:
when receiving the communication request data, acquiring vehicle node identity authentication data;
determining to generate a data block through the vehicle node identity authentication data;
determining a consensus mechanism in the starting area by generating a data block;
obtaining generation block command data by starting an in-region consensus mechanism;
and obtaining an updated data block through the generating block command data.
5. The intelligent networked automobile safety communication method as claimed in claim 4, wherein the step of determining and generating the data block through the vehicle node identity authentication data comprises the following steps:
determining whether the vehicle node identity authentication data passes verification:
if yes, determining to generate a data block, and executing the next step;
and if not, the vehicle node identity authentication data is acquired again.
6. The method as claimed in claim 4, wherein the determining of the start area consensus mechanism by generating the data block comprises:
judging whether the required data block is high-priority data:
if yes, the edge node is verified, and the starting area consensus mechanism is determined to be a starting multi-area consensus mechanism;
and if not, receiving verification for surrounding vehicles, and determining that the starting area consensus mechanism is a starting area consensus mechanism.
7. The intelligent networked automobile safety communication method as claimed in claim 6, wherein the accepting verification on the edge node comprises:
and (3) whether the verification is successful is accepted for the edge node:
if yes, starting a multi-region consensus mechanism;
and if not, discarding the data and reporting the suspicious node to the cloud server.
8. The method according to claim 6, wherein the receiving the verification for the surrounding vehicles comprises:
receiving verification of surrounding vehicles is successful:
if yes, starting a consensus mechanism in the region;
and if not, discarding the data and reporting the suspicious node to the cloud server.
9. The intelligent networked automobile safety communication method as claimed in claim 6, wherein the starting of the region consensus mechanism comprises:
when receiving application information sent by a main node group, a representative node receives the information;
the representative node judges whether the information votes through the received information:
if yes, feeding back the confirmation of submission of the main node, and executing the next step;
otherwise, the communication request is denied, and the information receiving is finished.
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| US20210160314A1 (en) * | 2019-11-21 | 2021-05-27 | Verizon Patent And Licensing Inc. | Edge computing for internet of things security with blockchain authentication |
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- 2021-07-26 CN CN202110842628.6A patent/CN113630775A/en active Pending
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| US20190043024A1 (en) * | 2017-08-05 | 2019-02-07 | Proclus Technologies Limited | Method and System for Securing a Blockchain with Proof-of-Transactions |
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