CN113315638A - Block chain consensus system and method based on Internet of things - Google Patents
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Abstract
The invention discloses a block chain consensus system and a block chain consensus method based on the Internet of things, wherein the system comprises the following components: the system comprises a plurality of block chains and a plurality of gateway nodes for communication, wherein each block chain comprises a common node and a bookkeeping node which belong to a local area network or an ad hoc network, the bookkeeping node is dynamically determined in the system by a bookkeeping node selection mechanism, the common node is used for storing data information related to the node and initiating a consensus request, and the bookkeeping node is used for responding to the consensus request after receiving the consensus request and storing the data information sent by the common node and packaging the stored data information into the block chain; each blockchain comprises at least one gateway node, and the gateway nodes realize the resource interaction and sharing on two blockchains which are independent from each other through a cross-chain resource interaction mechanism. The gateway node is adopted to participate in the consensus process of the two block chains at the same time, and the accounting node can be dynamically selected, so that cross-chain resource interaction is realized, and the consensus efficiency is improved.
Description
Technical Field
The invention relates to the technical field of block chain consensus, in particular to a block chain consensus system and method based on the Internet of things.
Background
The block chain has the characteristics of decentralization, distributed storage, encryption and traceability, as distributed accounting and storage are used, no centralized hardware or management mechanism exists, the rights and obligations of any node are equal, and the data blocks in the system are commonly maintained by the nodes with maintenance function in the whole system. The consensus mechanism of the block chain can well solve the problems of trust, safety and the like of the distributed network of the Internet of things. In a block chain distributed system, it is most critical to establish a consensus mechanism to achieve consensus as soon as possible in the whole network, and in the prior art, a consensus mechanism such as a workload certificate (Pow), a rights and interests certificate (Pos), a stock authorization certificate (Dpos), or a byzantine fault-tolerant algorithm (PBFT) is usually adopted, but the consensus mechanism is limited by factors such as energy and computational power of nodes, and has a problem of low consensus efficiency. In addition, in many internet of things environments, the efficiency problem is more prominent due to the heterogeneity of the computational power and energy of the nodes, different network access systems, bandwidth, speed, reliability, node mobility and the like, and a method capable of improving the node consensus efficiency in the internet of things environment is urgently needed to improve the management efficiency of the block chain to the internet of things.
Disclosure of Invention
The invention aims to provide a block chain consensus system and method based on the Internet of things.
In order to achieve the purpose, the invention provides the following scheme:
a block chain common-identification system based on the Internet of things comprises a plurality of block chains and a plurality of gateway nodes for communication among the plurality of block chains, wherein each block chain comprises a common node and an accounting node which belong to a local area network or an ad hoc network, the accounting node is dynamically determined in the system by an accounting node selection mechanism, the common node is used for storing data information related to the node and initiating a common-identification request, and the accounting node is used for responding to the common node to confirm the common-identification request and packaging the stored data information into the block chain after receiving the common-identification request and storing the data information sent by the common node; each block chain comprises at least one gateway node, and the gateway nodes realize resource interaction and sharing on two independent block chains through a cross-chain resource interaction mechanism.
Furthermore, the common node is an internet of things node device which adopts a wireless communication technology to realize interconnection and intercommunication, and the internet of things node device comprises various electronic devices, intelligent household equipment, wearable equipment and a mobile terminal.
Further, the accounting node selection mechanism evaluates mathematical expressions formed based on linear or nonlinear combination of multiple factors, and takes the first N nodes after the values are arranged in sequence as accounting nodes.
Further, the plurality of factors include an energy index, a centrality index, a mobility index, and a contribution index.
The invention also provides a block chain consensus method based on the Internet of things, which is applied to the block chain consensus system based on the Internet of things and comprises the following steps:
resource interaction and sharing on two independent block chains are realized by adopting a cross-chain resource interaction mechanism through a gateway node, and all resources comprise block chain public information indexes issued by the gateway node and public information and resources issued by other nodes;
the block chain provides resource sharing for all nodes in the chain, and all resources comprise resources published in the block chain and public resources published on another block chain and transferred to the block chain by a gateway node;
adopting a billing node selection mechanism to judge whether the nodes in the block chain are used as billing nodes or not;
if not, the node is used as a common node, the newly generated transaction is sent to a billing node in the network, and a consensus request is initiated;
and if so, the node becomes an accounting node, receives the consensus request, stores the data information sent by the common node, responds to the common node to confirm the consensus request and packs the stored data information into a block chain.
Further, the responding a confirmation consensus request to the common node and packaging the stored data information into a block chain specifically includes:
after receiving the consensus request initiated by the common node, the accounting node generates a hash value for transmitting a response back to the common node by using a hash algorithm so as to respond to the consensus request sent by the confirmation common node;
and based on the hash value, after the common node verifies the signature and confirms, the accounting node broadcasts updated data information to other accounting nodes in the networking and packs the stored data information into a block chain.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the invention provides a block chain consensus system and a block chain consensus method based on the Internet of things.A node at the same level is organized together to form a block chain and is subjected to decentralized consensus, different block chains can determine different roles for the nodes on the chain according to a selected consensus method, an accounting node is a role which must exist in any consensus method and is responsible for recording all occurring transactions, and the accounting node is determined through an accounting node selection mechanism in the consensus algorithm selected by the chain where the accounting node is located; different block chains run independently and without mutual interference, cross-chain resource interaction and sharing between the two block chains are realized through a gateway node, and one block chain can issue an issued resource index to the other block chain through the gateway for being called by the other block chain; after receiving the consensus request sent by the common node and storing the related data information, the accounting node responds to the confirmation consensus request to the common node and packs the stored data into the block chain, so that the consensus efficiency is improved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic flow chart of the block chain consensus method based on the internet of things.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The invention aims to provide a block chain consensus system and method based on the Internet of things.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The block chain consensus system based on the Internet of things comprises a plurality of block chains and a plurality of gateway nodes for communication among the plurality of block chains, wherein each block chain comprises a common node and an accounting node which belong to a local area network or an ad hoc network, the accounting node is dynamically determined in the system by an accounting node selection mechanism, the common node is used for storing data information related to the node and initiating a consensus request, and the accounting node is used for responding to the common node to confirm the consensus request and packaging the stored data information into the block chain after receiving the consensus request and storing the data information sent by the common node; each block chain comprises at least one gateway node, and the gateway nodes realize resource interaction and sharing on two independent block chains through a cross-chain resource interaction mechanism.
The common node is an Internet of things node device which adopts a wireless communication technology to realize interconnection and intercommunication and comprises various electronic devices, intelligent household equipment, wearable equipment and a mobile terminal. The node equipment of the Internet of things can also be provided with a registration module used for collecting and registering identity identification information of the equipment of the Internet of things and a safety module used for carrying out identity authentication and identification on the equipment of the Internet of things and intercepting illegal equipment and virtual hypothesis backup access.
The accounting node selection mechanism is used for evaluating a mathematical expression formed on the basis of linear or nonlinear combination of multiple factors, and taking the first N nodes after the values are sequentially arranged as accounting nodes. The plurality of factors include an energy index, a centrality index, a mobility index, and a contribution index. The energy index refers to the power supply capacity of the node, the node with continuous power supply has high energy index, and the node with small capacity is low in energy index. The centrality index refers to the number of node connection devices, and if the number is large, the index is high. The mobility index is the activity of the node movement. The contribution index refers to the amount of digital currency received by a node from each node.
As shown in fig. 1, the invention further provides an internet of things-based block chain consensus method, which is applied to the internet of things-based block chain consensus system, and the method comprises the following steps:
resource interaction and sharing on two independent block chains are realized by adopting a cross-chain resource interaction mechanism through a gateway node, and all resources comprise block chain public information indexes issued by the gateway node and public information and resources issued by other nodes;
the block chain provides resource sharing for all nodes in the chain, and all resources comprise resources published in the block chain and public resources published on another block chain and transferred to the block chain by a gateway node;
adopting a billing node selection mechanism to judge whether the nodes in the block chain are used as billing nodes or not;
if not, the node is used as a common node, the newly generated transaction is sent to a billing node in the network, and a consensus request is initiated;
and if so, the node becomes an accounting node, receives the consensus request, stores the data information sent by the common node, responds to the common node to confirm the consensus request and packs the stored data information into a block chain.
Wherein the responding to the confirmation consensus request to the common node and packaging the stored data information into the blockchain specifically includes:
after receiving the consensus request initiated by the common node, the accounting node generates a hash value for transmitting a response back to the common node by using a hash algorithm so as to respond to the consensus request sent by the confirmation common node;
and based on the hash value, after the common node verifies the signature and confirms, the accounting node broadcasts updated data information to other accounting nodes in the networking and packs the stored data information into a block chain.
In addition, after receiving the consensus request initiated by the common node, the accounting node starts a timer to record an accounting period, reaches a set period, and returns a response hash value to the common node.
The invention provides a block chain consensus system and a block chain consensus method based on the Internet of things.A node at the same level is organized together to form a block chain and is subjected to decentralized consensus, different block chains can determine different roles for the nodes on the chain according to a selected consensus method, an accounting node is a role which must exist in any consensus method and is responsible for recording all occurring transactions, and the accounting node is determined through an accounting node selection mechanism in the consensus algorithm selected by the chain where the accounting node is located; different block chains run independently and non-mutually interfered, cross-chain resource interaction and sharing between the two block chains are realized through a gateway node, one block chain can issue an issued resource index to the other block chain through the gateway for another block chain to call, after receiving a consensus request sent by a common node and storing related data information, an accounting node responds to the common node to confirm the consensus request and packs the stored data into the block chain, and the consensus efficiency is improved.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. A block chain consensus system based on the Internet of things is characterized by comprising: the system comprises a plurality of block chains and a plurality of gateway nodes for communication among the block chains, wherein the block chains comprise common nodes and accounting nodes which belong to a local area network or an ad hoc network, the accounting nodes are dynamically determined in the system by an accounting node selection mechanism, the common nodes are used for storing data information related to the common nodes and initiating a consensus request, and the accounting nodes are used for responding to the consensus confirmation request to the common nodes and packaging the stored data information into the block chains after receiving the consensus request and storing the data information sent by the common nodes; each block chain comprises at least one gateway node, and the gateway nodes realize resource interaction and sharing on two independent block chains through a cross-chain resource interaction mechanism.
2. The block chain consensus system based on the Internet of things of claim 1, wherein the common node is an Internet of things node device which realizes interconnection and interworking by adopting a wireless communication technology, and comprises various electronic devices, smart home devices, wearable devices and mobile terminals.
3. The internet of things-based blockchain consensus system as claimed in claim 1, wherein the accounting node selection mechanism evaluates a mathematical expression formed based on a linear or non-linear combination of a plurality of factors, and takes the first N nodes after the value sequence as accounting nodes.
4. The internet of things-based blockchain consensus system of claim 3, wherein the plurality of factors comprises an energy index, a centrality index, a mobility index, and a contribution index.
5. An internet of things-based blockchain consensus method applied to the internet of things-based blockchain consensus system of any one of claims 1 to 4, the method comprising the steps of:
resource interaction and sharing on two independent block chains are realized by adopting a cross-chain resource interaction mechanism through a gateway node, and all resources comprise block chain public information indexes issued by the gateway node and public information and resources issued by other nodes;
the block chain provides resource sharing for all nodes in the chain, and all resources comprise resources published in the block chain and public resources published on another block chain and transferred to the block chain by a gateway node;
adopting a billing node selection mechanism to judge whether the nodes in the block chain are used as billing nodes or not;
if not, the node is used as a common node, newly generated transaction is sent to a billing node in the network, and a consensus request is initiated;
and if so, the node becomes an accounting node, receives the consensus request, stores the data information sent by the common node, responds to the common node to confirm the consensus request and packs the stored data information into a block chain.
6. The internet of things-based blockchain consensus method according to claim 5, wherein the responding to the common node to confirm the consensus request and packaging the stored data information into a blockchain specifically comprises:
after receiving the consensus request initiated by the common node, the accounting node generates a hash value for transmitting a response back to the common node by using a hash algorithm so as to respond to the consensus request sent by the confirmation common node;
and based on the hash value, after the common node verifies the signature and confirms, the accounting node broadcasts updated data information to other accounting nodes in the networking and packs the stored data information into a block chain.
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