Paper source: Enabling Localized Peer-to-Peer Electricity Trading Among Plug-in Hybrid Electric Vehicles Using Consortium Blockchains
I read the first paper. When I first came into contact with it, I only looked at the title. The topics of these papers feel that they need to involve many fields, require a lot of background knowledge, and feel that they are not reproducible, and some are difficult to start.
Later, I chatted with my brother and my friends, and I feel like taking your time, take a look first, and learn more about all aspects.
Today, after reading the summary and the first paragraph, I encountered some concepts that I didn’t understand and checked the information.
1. Consortium chain: The authority node is added on the basis of the block chain. The published block needs to be reviewed by the authority node before joining, or other nodes need to be reviewed. (Supplement: Blockchain where the consensus process is controlled by preselected nodes)
2. The characteristics of the alliance chain: ① Partial decentralization: The alliance chain is owned by the alliance, it is easy to reach a consensus, and there are not too many nodes. ②The privacy of data is better than that of the public chain: in principle, the blockchain should not have privacy at all, because its immutable property is built on the common maintenance of the same ledger by all nodes, which means that each node is You can know all the information of the entire blockchain. However, the information of the alliance chain is only disclosed to the inside of the alliance, and irrelevant nodes cannot be accepted if they are not approved. All guarantee a certain degree of privacy. Q: Is there any way to avoid selling the information of the alliance chain within the alliance? A: I think it shouldn’t be done to prevent internal personnel from leaking the secrets. After he has seen the information, he can leak it through physical methods, so this is not within the jurisdiction of the alliance chain. Q: So can the legal nodes inside the alliance chain copy the information and transfer it out? A: I think that since the information of the block is stored and maintained locally, the file can definitely be copied, but whether the copied information is encrypted or how to decrypt it, I didn’t think about it clearly, or in the blockchain design At the beginning, the designer designed a set of encryption and decryption rules not to be public, so that it should be possible to ensure that the encrypted data is copied out and cannot be used. But this will cause the following two questions. First: Will users trust the chain of this model. Second: Users can still leak information through physical methods, such as taking photos and videos of computer screens. It should be impossible for the information in our chain to be shown to users in cipher text.
③ Good controllability, which means that people cannot be tampered with and become weaker. Because there are a large number of nodes in the public chain, it is almost impossible to modify. However, the nodes in the alliance chain are limited, so as long as most of the nodes reach a consensus, then the data in the blockchain can be modified. ④ Fast transaction speed: The number of nodes is small, and it is easy to reach a consensus.
3. EV pure electric, HEV hybrid, PHEV plug-in hybrid (the battery is larger than HEV, and there is an additional set of power supply equipment that can convert fuel into electrical energy for power, and kinetic energy can be recovered)
Experience: I don’t think the value of a single blockchain is great, so now I know more about the combination of blockchain and other fields (including which industries (energy, automobile, medical) can be combined and how to combine), which will broaden our horizons in the future help. keep it up.