CN114827150A - Internet of things terminal data uplink adaptation method, system and storage medium - Google Patents

Abstract

A method, a system and a storage medium for chaining adaption of terminal data of the Internet of things belong to the technical field of the Internet of things and a block chain of a power grid system, and solve the problems of high difficulty and high hardware cost in transformation adaption of a block chain for uploading terminal data of the Internet of things; an identity authorization module is adopted to cooperate with authorization module authentication information stored in a block chain to authorize the access of an Internet of things terminal to the block chain network and upload data, the authorized Internet of things terminal uploads the data to the block chain, re-authorization is needed after disconnection, the fact that the Internet of things terminal accessing the block chain is authorized by the identity authorization module is ensured, the uploaded data is approved by the block chain, and the fact that the data uploaded by the Internet of things terminal is authentic and credible is ensured; the identity authorization module can authorize a plurality of Internet of things terminals without binding the Internet of things terminals, and the identity authorization module is removed after successful login, so that the workload of butt joint and transformation of the existing Internet of things terminals is reduced, and the hardware cost of block chain transformation and adaptation of data uploading of the Internet of things terminals is reduced.

Description

A method, system and storage medium for data uplink adaptation of an Internet of Things terminal

technical field

The invention belongs to the technical field of the Internet of Things and the block chain of the power grid system, and relates to a method, a system and a storage medium for an Internet of Things terminal data uplink adaptation method.

Background technique

The Chinese invention patent application with the application publication number CN112487011A, "Blockchain-based IoT terminal data uploading method and system" discloses the acquisition of IoT raw data and processing, and the processed data is transmitted to the cloud platform for storage; Perform hash calculation on the resulting data, obtain a hash value, and encapsulate the hash value into a transaction package; use the private key to sign the transaction package in a trusted execution environment, and the private key is stored in the trusted execution environment in an unreadable way. In the execution environment; the signed transaction package is combined with the public key and sent to the blockchain cluster. In this invention, the transaction package signature is separated from the encapsulation and transmission of the transaction package, and the private key is stored in the trusted execution environment in an unreadable manner, thereby avoiding the possibility of the private key being read and leaked. The invention patent application mainly solves the defect in the prior art that there is a risk of private key leakage in the Internet of Things terminal data uploading on the chain. In the prior art IoT terminal data uploading system, the public and private keys are directly stored in the IoT terminal, and the data collected by the sensor is signed by the private key in the terminal device and then directly uploaded to the chain. There is a drawback that once the terminal device is compromised, the private key is immediately leaked. Therefore, this invention patent designs a technical solution in which the private key is used to sign the transaction package in the trusted execution environment, and the private key is stored in the trusted execution environment in an unreadable manner. It mainly focuses on the management of keys and reduces the risk of private key leakage, and does not pay attention to the transformation and adaptation of IoT devices to the blockchain, as well as the networking method between blockchain and IoT terminals.

The Chinese invention patent application with the application publication number CN109391661A "Blockchain Networking Method and System for Internet of Things Terminals" discloses that the terminal sends a registration request to the Internet of Things cloud platform server; the block chain module preset in the terminal The registration request is intercepted, and at the same time, a blockchain gateway is selected from the preset seed gateway list, and the blockchain gateway is used to access the blockchain network; the blockchain module intercepts all output messages of the terminal , according to the content of the output message, perform corresponding output filtering on the output message, and use the blockchain network to perform corresponding transmission for messages that need to be transmitted to other nodes; All input messages of the blockchain network are intercepted, and the input messages are converted into a communication protocol supported by the terminal, and then transparently transmitted to the terminal. The technical solution of the invention patent application introduces the blockchain network as an information connection intermediary, and the data uploaded by the terminal will still be sent to the centralized IoT cloud platform server by the blockchain for storage, so it is difficult to exert the decentralized trust mechanism of the blockchain. Features.

The blockchain itself has the ability of data traceability, trustworthiness, and sharing, but the blockchain itself does not verify the data source, and it is difficult to ensure the authenticity of the data source. Therefore, the blockchain acts as the trust base of the participants on the chain. The value will be greatly reduced. Extending the blockchain trust value chain, from the data collection source to the final data on-chain supervision and coverage is the fundamental solution. Therefore, in the face of IoT data collection scenarios, the IoT terminal is directly connected to the blockchain node, and the IoT terminal data is directly uploaded to the chain, instead of being transferred to the chain through a centralized database, which can greatly improve the availability of data. reliability. However, in the face of a large number of existing IoT terminals and the demand for a large number of IoT terminals to access the blockchain, a large number of existing IoT terminals are updated and transformed to achieve successful connection with the blockchain and data can be uploaded to the chain. The difficulty is relatively high, and transformation and pilot projects can only be carried out in a small area.

SUMMARY OF THE INVENTION

The purpose of the present invention is to design a method, system and storage medium for the data uploading of the Internet of Things terminal, so as to solve the problems of difficulty in the transformation and adaptation of the Internet of Things terminal data uploading blockchain and high hardware cost in the prior art.

The present invention solves the above-mentioned technical problems through the following technical solutions:

An Internet of Things terminal data uploading adaptation method, comprising the following steps:

S1. The IoT terminal connects to the blockchain interface server through Ethernet, and the IoT terminal registers and logs in in the blockchain network. If there is registration information, log in directly;

S2. Insert the identity authorization module into the IoT terminal, and the identity authorization module communicates through the Ethernet connection between the IoT terminal and the blockchain interface server;

S3. The blockchain consensus node authorizes the identity of the IoT terminal through the identity authorization module;

S4. Remove the identity authorization module, and the IoT terminal uploads the terminal collection data to the blockchain;

S5. After the IoT terminal is disconnected from the blockchain network and then reconnected, when the data upload authorization is invalid, the identity authorization module is reinserted for authorization.

The technical scheme of the present invention uses the identity authorization module to cooperate with the authentication information of the authorization module stored in the blockchain to authorize the IoT terminal to access the blockchain network and upload data, and only the authorized IoT terminal can upload data to the blockchain. , once the network connection between the IoT terminal and the blockchain is disconnected, the authorization will be invalid immediately, and the identity authorization module needs to be reused for authorization to ensure that each IoT terminal connected to the blockchain is authorized by the identity authorization module, and its The uploaded data is approved by the blockchain, which ensures that the data uploaded by the IoT terminal is authentic and credible; an identity authorization module can authorize multiple IoT terminals to perform blockchain authentication and login without binding. The IoT terminal can be removed after the authentication and login is successful, and there is no need to maintain the connection with the IoT terminal during the data transmission process, which reduces the hardware cost of the IoT terminal data uploading blockchain transformation and adaptation; using the blockchain interface The server receives the IoT terminal data, standardizes the received data, and then transmits the data to the blockchain consensus node for data uploading; ensuring that the existing IoT terminal does not need to be modified, or only needs minimal modification, and can be integrated with the blockchain. The chain network completes data docking, minimizing the workload of docking and transformation of existing IoT terminals.

Further, the method for registering and logging in the IoT terminal in the blockchain network described in step S1 is as follows: after the blockchain network operates normally, the IoT terminal is connected to the blockchain interface server through Ethernet; then The IoT terminal sends the device type, device model, device S/N code, and Ethernet MAC address to the blockchain interface server. The blockchain interface server standardizes and modifies the data and transmits it to the blockchain consensus node for device registration; After the registration of the IoT terminal is completed, the blockchain node sends the one-time login credential to the IoT terminal through the blockchain interface server, and the IoT terminal logs in with the one-time login credential.

Further, the identity authorization module described in step S2 is connected to the Internet of Things terminal through a USB port.

Further, the method for the blockchain consensus node to perform identity authorization on the IoT terminal through the identity authorization module described in step S3 is as follows:

The identity authorization module packages the authorization module model, authorization module identification ID, authorization module private key, IoT terminal one-time login credentials, IoT terminal device S/N code, Ethernet MAC address, and timestamp into blockchain transaction information msg _{Authentication} , after signing the transaction information, submit the transaction information to the blockchain consensus node through the blockchain interface server for IoT terminal identity authorization;

The consensus node verifies whether the msg _{Authentication} signature, the authorization module identification ID, and the authorization module public key are from the same identity authorization module, and whether the one-time login certificate of the IoT terminal, the device S/N code, and the Ethernet MAC address correspond to the same object Internet terminal;

If both verifications pass, it is determined that the IoT terminal access to the blockchain network is safe and credible, and the IoT terminal is authorized to upload the terminal collection data to the blockchain;

Then, the blockchain consensus node sends an "authorized pass" message to the IoT terminal and the identity authorization module;

If any verification fails, it is determined that the access of the IoT terminal to the blockchain network may be unsafe, and the request of the IoT terminal to upload the terminal to collect data to the blockchain is rejected.

Further, in step S4, the identity authorization module is removed, and the IoT terminal uploads the terminal collection data to the blockchain, specifically: the IoT terminal and the identity authorization module receive the "authorization passed" message, and the identity authorization module uses the light The flashing prompt can remove the identity authorization module, and the IoT terminal starts to upload the terminal collection data to the blockchain from this moment.

Further, after the IoT terminal described in step S5 is disconnected from the blockchain network and then reconnected, when the current data upload authorization is invalid, the identity authorization module is reinserted for authorization, specifically: when the network link fluctuates, the The shutdown of the blockchain node or the shutdown of the IoT terminal causes the IoT terminal to be disconnected from the blockchain network. After the connection between the two is successfully reconnected, the last time the IoT terminal was authorized to upload the terminal to the blockchain to collect data is invalid. The IoT terminal identity authorization operation, and then the IoT terminal can continue to upload the terminal collection data to the blockchain.

An on-chain adaptation system using the above-mentioned method for adapting data on an Internet of Things terminal, comprising: an identity authorization module, an Internet of Things terminal, a blockchain interface server, and a blockchain consensus node; the identity authorization module Connect with the IoT terminal that needs to be authorized and authenticated through the USB interface, and communicate through the Ethernet between the IoT terminal and the blockchain network. The Ethernet interface of the IoT terminal communicates with the blockchain interface server. The blockchain interface server is used to receive the data transmitted by the IoT terminal, standardize the received data, and transmit it to the blockchain consensus node for data uploading.

Further, the IoT terminal is an embedded IoT terminal.

Further, the blockchain consensus node adopts a high-performance server host.

A computer-readable storage medium stores a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, implements the steps of the method for adapting data on an Internet of Things terminal.

The advantages of the present invention are:

(1) Use the identity authorization module to cooperate with the authorization module authentication information stored in the blockchain to authorize IoT terminals to access the blockchain network and upload data. Only authorized IoT terminals can upload data to the blockchain. Once If the network connection between the IoT terminal and the blockchain is disconnected, the authorization will be invalid immediately, and the identity authorization module needs to be reused for authorization to ensure that each IoT terminal connected to the blockchain is authorized by the identity authorization module, and the uploaded The data is approved by the blockchain, which ensures that the data uploaded by the IoT terminal is authentic and credible; an identity authorization module can authorize multiple IoT terminals to perform blockchain authentication and login without binding the IoT The terminal can be removed after the authentication and login is successful, and there is no need to maintain the connection with the IoT terminal during the data transmission process, which reduces the hardware cost of the IoT terminal data uploading blockchain transformation and adaptation.

(2) Use the blockchain interface server to receive IoT terminal data, standardize the received data, and then transmit it to the blockchain consensus node for data uploading. It is guaranteed that the existing IoT terminals can be connected with the blockchain network without modification, or only a minimum modification is required, and the workload of docking and transformation of existing IoT terminals can be minimized.

Description of drawings

1 is a structural diagram of an Internet of Things terminal data uplink adaptation system according to Embodiment 1 of the present invention;

FIG. 2 is a flowchart of a method for adapting data uplink of an IoT terminal according to Embodiment 1 of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention. examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The technical solutions of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments:

Example 1

As shown in FIG. 1, an on-chain adaptation system using the described IoT terminal data on-chain adaptation method includes: an identity authorization module, an IoT terminal, a blockchain interface server, and a blockchain consensus node; The identity authorization module is connected with the IoT terminal that needs to be authorized and authenticated through the USB interface, and communicates with the Ethernet between the IoT terminal and the blockchain network, and the Ethernet interface of the IoT terminal is connected with the blockchain interface. The server communicates with the blockchain interface server, and the blockchain interface server is used to receive the data transmitted by the IoT terminal, standardize the received data, and transmit it to the blockchain consensus node for data uploading on the chain.

The identity authorization module is a small portable module terminal, which is connected to the IoT terminal that requires authorization and authentication through the USB interface, and communicates with the blockchain network through the Ethernet connection between the IoT terminal and the blockchain network. Each identity authorization module needs to be filed on the blockchain in advance, and the model, identification ID, module public key and other information of each identity authorization module are stored on the chain, which is used for information verification and verification during identity authorization to ensure that Security for identity authorization operations.

The IoT terminal can be an embedded IoT terminal, which needs to be composed of microcontroller MCU, memory, memory, internal bus and other devices, and at least one USB and one Ethernet interface are required for external communication. It can be a new type of IoT terminal that can be redesigned and manufactured to interface with the blockchain, or an existing IoT terminal.

The blockchain interface server is used to receive the data transmitted by the IoT terminal, standardize the received data, and transmit it to the blockchain consensus node for data uploading. Since the data fields and data formats returned by different types of IoT terminals are different, the blockchain consensus node may not be able to identify the data directly returned by the IoT terminal. Therefore, the blockchain interface server is used to standardize the returned data and convert it into For the data that can be identified by the blockchain consensus node, the data is uploaded to the chain.

The blockchain consensus node requires powerful computing performance, and is generally served by a high-performance server host, responsible for consensus on the data on the chain.

As shown in Figure 2, an IoT terminal data uploading adaptation method includes the following steps:

Step 1: The IoT terminal connects to the blockchain interface server through Ethernet, and the IoT terminal registers and logs in in the blockchain network. If there is registration information, log in directly.

After the blockchain network is running normally, connect the IoT terminal to the blockchain interface server through Ethernet. Then the IoT terminal sends the device type, device model, device S/N code, and Ethernet MAC address to the blockchain interface server. The blockchain interface server standardizes and modifies the data and transmits it to the blockchain consensus node for device registration. . After the registration of the IoT terminal is completed, the blockchain node sends the one-time login credential to the IoT terminal through the blockchain interface server, and the IoT terminal logs in with the one-time login credential.

If the blockchain node retrieves the registration information of the existing device, it directly sends the one-time login credential to the IoT terminal through the blockchain interface server, and the IoT terminal logs in with the one-time login credential.

Step 2: Insert the identity authorization module into the IoT terminal.

Each identity authorization module needs to be filed on the blockchain in advance, and the model, identification ID, module public key and other information of each identity authorization module are stored on the chain, which is used for information verification and verification during identity authorization to ensure identity. Security for authorized operations.

The identity authorization module is connected to the IoT terminal through the USB port, and the identity authorization module communicates through the Ethernet connection between the IoT terminal and the blockchain interface server.

Step 3: The blockchain consensus node authorizes the identity of the IoT terminal through the identity authorization module.

The identity authorization module packages the authorization module model, authorization module identification ID, authorization module private key, IoT terminal one-time login credentials, IoT terminal device S/N code, Ethernet MAC address, and timestamp into blockchain transaction information msg _{Authentication} , after signing the transaction information, submit the transaction information to the blockchain consensus node through the blockchain interface server for IoT terminal identity authorization.

The consensus node verifies whether the msg _{Authentication} signature, the authorization module identification ID, and the authorization module public key are from the same identity authorization module, and whether the one-time login certificate of the IoT terminal, the device S/N code, and the Ethernet MAC address correspond to the same object Internet terminal. If both verifications are passed, it is determined that the IoT terminal accessing the blockchain network is safe and credible, and the IoT terminal is authorized to upload the terminal collection data to the blockchain. Subsequently, the blockchain consensus node sends an "authorized pass" message to the IoT terminal and the identity authorization module.

If any verification fails, it is determined that the access of the IoT terminal to the blockchain network may be unsafe, and the request of the IoT terminal to upload the terminal to collect data to the blockchain is rejected.

Step 4: Remove the identity authorization module, and the IoT terminal can upload the terminal collection data to the blockchain normally.

The IoT terminal and the identity authorization module receive the "authorization passed" message, and the identity authorization module uses a flashing light to prompt that the identity authorization module can be removed, and the IoT terminal can upload the terminal collection data to the blockchain normally from this moment.

Step 5: After the IoT terminal is disconnected from the blockchain network and then reconnected, when the data upload authorization is invalid, it is necessary to re-insert the identity authorization module and re-authorize.

The connection between the IoT terminal and the blockchain network is disconnected due to any reason (including network link fluctuation, blockchain node shutdown, and IoT terminal shutdown). If the authorization to collect data from the blockchain upload terminal is invalid, you need to perform steps 1 to 4 again to perform the IoT terminal identity authorization operation, and then the IoT terminal can continue to collect data from the blockchain upload terminal.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A method for adapting uplink of Internet of things terminal data is characterized by comprising the following steps:

s1, the terminal of the Internet of things is connected with the server through the Ethernet access block, the terminal of the Internet of things registers and logs in the block link network, and if the registration information exists, the terminal of the Internet of things directly logs in;

s2, inserting an identity authorization module into the Internet of things terminal, wherein the identity authorization module communicates with the block link server through the Ethernet connection between the Internet of things terminal and the block link server;

s3, the block chain common identification node performs identity authorization on the Internet of things terminal through an identity authorization module;

s4, removing the identity authorization module, and uploading the data acquired by the terminal to the block chain by the Internet of things terminal;

and S5, after the internet of things terminal is disconnected with the block chain network and reconnected, when the secondary data uploading authorization fails, the identity authorization module is inserted again for authorization.

2. The method for adapting uplink on data of an internet of things terminal according to claim 1, wherein the method for registering and logging in the block chain network by the internet of things terminal in step S1 is specifically as follows: after the block chain network normally operates, the terminal of the Internet of things is accessed into a block chain oral server through Ethernet; then the terminal of the Internet of things sends the equipment type, the equipment model, the equipment S/N code and the Ethernet MAC address to a block link oral server, and the block link oral server performs standardized modification on data and then transmits the data to a block link consensus node for equipment registration; after the internet of things terminal is registered, the block link points send one-time login credentials to the internet of things terminal through the block link oral server, and the internet of things terminal logs in through the one-time login credentials.

3. The method for adapting uplink on data of a terminal in the internet of things according to claim 2, wherein the identity authorization module in step S2 accesses the terminal in the internet of things through a USB port.

4. The method for adapting uplink on data of an internet of things terminal according to claim 3, wherein the method for the blockchain consensus node to perform identity authorization on the internet of things terminal through the identity authorization module in step S3 is as follows:

the identity authorization module packages an authorization module model, an authorization module identity identification ID, an authorization module private key, an Internet of things terminal one-time login certificate, an Internet of things terminal device S/N code, an Ethernet MAC address and a timestamp into block chain transaction information msg _{Authentication} After signing the transaction information, submitting the transaction information to a block chain consensus node through a block chain oral server for identity authorization of the Internet of things terminal;

consensus node check msg _{Authentication} Whether the signature, the identity identification ID of the authorization module and the public key of the authorization module come from the same identity authorization module or not is checked, and whether the one-time login certificate of the Internet of things terminal, the S/N code of the equipment and the MAC address of the Ethernet correspond to the same Internet of things terminal or not is checked;

if the two checks pass, the thing networking terminal is judged to be safe and credible when being accessed into the block chain network, and the authorized thing networking terminal can upload terminal acquisition data to the block chain;

then, the block chain consensus node sends an authorization passing message to the Internet of things terminal and the identity authorization module;

if the random check fails, the fact that the terminal of the Internet of things is accessed to the block chain network is determined to be unsafe, and the request that the terminal of the Internet of things uploads the data collected by the terminal to the block chain is rejected.

5. The internet-of-things terminal data uplink adaptation method according to claim 4, wherein the identity removal authorization module in step S4 is configured to enable the internet-of-things terminal to acquire data from the blockchain upload terminal, and specifically includes: the internet of things terminal and the identity authorization module receive the authorization passing message, the identity authorization module can remove the identity authorization module by using light flicker prompting, and the internet of things terminal uploads terminal acquisition data to the block chain from the moment.

6. The internet of things terminal data uplink adaptation method of claim 5, wherein, after the internet of things terminal is disconnected from the blockchain network and reconnected in step S5, when the secondary data upload authorization fails, the identity authorization module is reinserted for authorization, specifically: when the network connection between the Internet of things terminal and the block chain is disconnected due to network link fluctuation, block chain link point shutdown or Internet of things terminal shutdown, and the Internet of things terminal and the block chain are connected and reconnected successfully, the authorization that the Internet of things terminal uploads terminal acquired data to the block chain is invalid for the last time, the identity authorization operation of the Internet of things terminal is carried out again, and then the Internet of things terminal side can continue to upload terminal acquired data to the block chain.

7. A uplink adaptation system adopting the method for uplink adaptation of the Internet of things terminal data according to any one of claims 1 to 6, comprising: the system comprises an identity authorization module, an Internet of things terminal, a block chain oral server and a block chain consensus node; the identity authorization module is connected with the Internet of things terminal needing to be authorized and authenticated through the USB interface and communicates with an Ethernet between a block chain network through the Internet of things terminal, the Ethernet interface of the Internet of things terminal communicates with the block link oral server, the block link oral server is used for receiving data transmitted by the Internet of things terminal and standardizing the received data and transmitting the data to the block chain common identification node for data uplink.

8. The uplink adaptation system of claim 7, wherein the internet of things terminal is an embedded internet of things terminal.

9. The system of claim 7 wherein the blockchain consensus node employs a high performance server host.

10. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements the steps of the method for adapting uplink on data of a terminal of internet of things according to any one of claims 1 to 6.

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