Block chain technology-based second-hand car transaction method, device and system

Abstract

Embodiments of the invention disclose a block chain technology-based second-hand car transaction method, device and system. The method comprises the following steps of: broadcasting vehicle information to the whole network by a main node, wherein the vehicle information carries unique identification codes of corresponding vehicles; and receiving information, in the network, fed back by the main node, if the sum of TRUE information in all the fed back information achieves a preset value, putting timestamps on the vehicle information, packaging the vehicle information as new information blocks, sending the new information blocks to a slave node in the network, and writing the new information block into a local database. By implementing the method, device and system disclosed by the invention, second-hand card transaction models are built into decentralized products through utilizing a block chain technology, so that the barrier that the information of the contracting parties in asymmetrical is broken, the trust problem in traditional models is thoroughly changed, and healthy transaction is formed.

Description

technical field [0001] The present invention relates to the technical field of smart devices, in particular to a method, device and system for trading second-hand cars based on block chain technology. Background technique [0002] Along with the development of the online trading automobile industry, with the maturity of the automobile industry and the development of the "Internet +" model, more and more stock second-hand car owners choose to let buyers know the vehicles that need to be resold through the Internet model, and then What has come is that the transaction mode of existing used car transactions has changed from the initial face-to-face transaction between buyers and sellers to online transactions through the Internet, and more transaction methods for purchasing used cars in different places have emerged. These changes in transaction and consumption patterns have resulted in many second-hand car market transaction software, such as Renrenche and Guazi second-hand ca...

AI Technical Summary

Problems solved by technology

[0005] The problem existing in the existing second-hand car transaction process is that there are a large number of buyers who cannot fully grasp the vehicle condition through the test drive and test drive for the judgment of the existing condition of the vehicle. Changes, total mileage and other information are used as support to carry out a comprehensive purchase evaluation of the vehicle

In addition, the seller has provided false and deceptive proof methods to prove the above-mentioned existing vehicles, and there are also sellers who cannot prove the above-mentioned conditions of the vehicle due to the lack of original information such as the lack of car purchase invoices and the lack of replacement of maintenance information records.

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