Foreign currency change reservation exchange method, device and system based on block chain

Abstract

The invention discloses a foreign currency change reservation exchange method, device and system based on a block chain, and relates to the field of block chains, and the method comprises the steps: receiving a foreign currency change reservation exchange request submitted by a user; according to the foreign currency change reservation exchange request, generating a foreign currency change reservation exchange scheme based on information in a block of a block chain; and pushing the foreign currency change reservation exchange scheme to the user, so that the user performs foreign currency change reservation exchange based on the foreign currency change reservation exchange scheme, wherein foreign currency change information and geographical location information of one bank are stored in each block of the block chain. According to the invention, barriers among banking outlets can be broken, an exchange scheme is provided for the user according to the exchange appeal specifically reserved by the user, the user can use less useless ways, and the requirement of the user for exchange face value is met, so that the user is helped to efficiently and conveniently obtain foreign currency change with required currency and face value, and the user experience is improved.

Description

technical field [0001] The present invention relates to the technical field of block chains, in particular to a method, device and system for pre-ordering and exchanging foreign currency zero banknotes based on block chains. Background technique [0002] This section is intended to provide a background or context to embodiments of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] Outbound users have the actual need to use foreign currency bills in scenarios such as paying tips abroad, taking cars, and purchasing small items; and carrying large foreign currency bills out of the country is not safe and will cause exchange losses. Therefore, users need to exchange the required foreign currency change notes in advance before leaving the country. [0004] Due to the insufficient reserves of foreign currency zero banknotes in many grass-roots branches of banks, the coordination and deploy...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a block chain-based foreign currency zero banknote reservation exchange method to solve the technical problems of the bank's foreign currency zero banknote reservation exchange process that is time-consuming and laborious, and the user experience is extremely poor. The method includes:

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