CN113935507A - Foreign currency cash exchange reservation method and device based on block chain - Google Patents
Foreign currency cash exchange reservation method and device based on block chain Download PDFInfo
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Abstract
The invention discloses a foreign currency cash exchange reservation method and a device based on a block chain, relating to the technical field of the block chain, wherein the method comprises the following steps: receiving a foreign currency cash demand submitted by a user, wherein the foreign currency cash demand comprises an exchange amount and exchange preference; inquiring exchange information of each bank branch through a blockchain network, wherein the exchange information comprises a price, a branch address and a foreign currency reserve amount; screening alternative bank outlets meeting the requirement of foreign currency cash of a user according to exchange information of each bank outlet, and providing an alternative bank outlet list for the user; and receiving a target network point selected by a user from the alternative bank network point list, submitting foreign currency and cash exchange reservation information to the target network point, and recording the foreign currency and cash exchange reservation information into the block chain network. The invention can conveniently and quickly provide the user with the reserved network selection for the foreign currency cash exchange meeting the user requirements, avoid repeated operation and improve the customer experience.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a foreign currency cash exchange reservation method and device based on the block chains.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Foreign currency cash is a necessary article for export, and foreign currency is mainly exchanged through bank outlets at present. The foreign currency cash has the cost of storage, transportation and the like, so that the cash prepared by the network points is less, and the bank provides a foreign currency cash reservation function for avoiding the condition that the client cannot exchange the sufficient foreign currency cash after arriving at the network points. At present, if a customer wants to know the conditions of foreign currencies which can be reserved by a plurality of banks, the customer needs to visit the foreign currency cash exchange reservation function of different banks one by one to determine bank outlets which can exchange the foreign currencies, and the problems of poor customer experience, repeated operation and the like exist.
Disclosure of Invention
The embodiment of the invention provides a foreign currency cash exchange reservation method based on a block chain, which is used for conveniently and quickly providing a reservation network selection of foreign currency cash exchange meeting the requirements of a user for the user, avoiding repeated operation and improving the experience of the user, and comprises the following steps:
receiving a foreign currency cash demand submitted by a user, wherein the foreign currency cash demand comprises an exchange amount and exchange preference;
inquiring exchange information of each bank branch through a blockchain network, wherein the exchange information comprises a price, a branch address and a foreign currency reserve amount;
screening alternative bank outlets meeting the requirement of foreign currency cash of a user according to exchange information of each bank outlet, and providing an alternative bank outlet list for the user;
and receiving a target network point selected by a user from the alternative bank network point list, submitting foreign currency and cash exchange reservation information to the target network point, and recording the foreign currency and cash exchange reservation information into the block chain network.
The embodiment of the invention also provides a foreign currency cash exchange reservation device based on the block chain, which is used for conveniently and quickly providing the user with the selection of the reserved network points of foreign currency cash exchange meeting the user requirements, avoiding repeated operation and improving the customer experience, and the device comprises:
the communication module is used for receiving foreign currency cash requirements submitted by a user, and the foreign currency cash requirements comprise exchange limits and exchange preferences;
the system comprises a query module, a processing module and a processing module, wherein the query module is used for querying exchange information of each bank branch through a blockchain network, and the exchange information comprises a quotation price, a branch address and a foreign currency reserve amount;
the screening module is used for screening alternative bank outlets meeting the requirement of foreign currency cash of the user according to exchange information of each bank outlet, and the communication module provides an alternative bank outlet list for the user;
and the communication module is also used for receiving a target network point selected by the user from the alternative bank network point list, submitting the foreign currency cash exchange reservation information to the target network point and recording the foreign currency cash exchange reservation information into the block chain network.
The embodiment of the invention also provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the foreign currency exchange reservation method based on the block chain when executing the computer program.
The embodiment of the invention also provides a computer readable storage medium, which stores a computer program for executing the foreign currency cash exchange reservation method based on the blockchain.
In the embodiment of the invention, based on the characteristics of block chain decentralization, traceability and the like, exchange information such as the quotation prices, the network point addresses, the foreign currency reserve amounts and the like of different bank network points is stored on a block chain network, and after a user selects a target network point, the foreign currency cash exchange reservation information is stored on the block chain network, so that the data storage is concise and clear, and can be traced and cannot be tampered; after the foreign currency cash demand submitted by the user, screening alternative bank outlets meeting the user demand for the user according to exchange information of each bank outlet stored in the block chain network, wherein the user can select one bank outlet as a target outlet and submit foreign currency cash exchange reservation information to the target outlet, so that the cross-bank foreign currency cash exchange reservation service is provided for the user, the intelligent matching between the bank outlets and the user demand is realized, and the user operation is simplified; meanwhile, the foreign currency cash requirement comprises exchange preference of the user, so that the bank outlets obtained by matching can meet the requirement of the user for exchanging sufficient foreign currency cash, the personalized requirement of the user is better met, and the user experience is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:
fig. 1 is a flowchart of a method for reserving currency exchange of foreign currency based on a block chain according to an embodiment of the present invention;
fig. 2 is another flowchart of a method for reserving currency exchange of foreign currency based on a block chain according to an embodiment of the present invention;
fig. 3 is another flowchart of a method for reserving currency exchange of foreign currency based on a block chain according to an embodiment of the present invention;
fig. 4 is another flowchart of a method for reserving currency exchange based on a block chain according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a foreign currency cash exchange reservation apparatus based on a block chain in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
The embodiment of the invention provides a foreign currency cash exchange reservation method based on a block chain, which comprises the following steps of:
The exchange amount is the amount of foreign currency required to be exchanged by the user, for example, the user needs to exchange 1000 euros, or needs to exchange $ 5000, and the like.
Because different bank outlets are different in distance from the position where the user is located and the exchange prices of foreign currency are different, considering that the user generally tends to select a bank outlet which is closer in distance and consumes less domestic currency (namely has a lower price) for exchanging the same amount of foreign currency, in the embodiment of the invention, exchange preference options can be provided for the user, and the user selects or sets exchange preference according to the self requirement, so that better experience is obtained.
The exchange preference comprises a distance range and an exchange price range, for example, the distance range is set to be within 5 kilometers, and the exchange price range of Euro is 7-7.5.
Of course, the user may not set redemption preferences.
If the user does not set the exchange preference, the number of the screened alternative banking outlets is more than that of the alternative banking outlets which are screened according to the exchange preference, so that the screened alternative banking outlets can be sorted according to the sequence of the distance from near to far and the sequence of the exchange price from low to high in order to facilitate the selection of the user.
102, inquiring exchange information of each bank branch through a blockchain network, wherein the exchange information comprises a quotation price, a branch address and a foreign currency reserve amount.
In the embodiment of the invention, the plate price is used for indicating the plate-hanging exchange price of the foreign currency cash of each bank.
And 103, screening alternative bank outlets meeting the requirement of the foreign currency cash of the user according to the exchange information of each bank outlet, and providing an alternative bank outlet list for the user.
Specifically, as shown in fig. 2, step 103 may be implemented as the following steps 1031 to 1033, where the step selects, according to the exchange information of each banking node, an alternative banking node that meets the requirement of the user for the foreign currency cash:
and step 1033, screening alternative banking outlets which accord with the exchange preference of the user from the first banking outlet by using the intelligent contract.
Firstly, it is required to ensure that a user can exchange sufficient foreign currency cash in a bank branch, therefore, a first bank branch with the foreign currency reserve amount exceeding the exchange limit required by the user is screened from each bank branch, and then an alternative bank branch meeting the exchange preference of the user is screened from the first bank branch.
A Smart contract (Smart contract) is a computer protocol intended to propagate, verify or execute contracts in an informational manner. In embodiments of the invention, a corresponding intelligent contract is generated according to each redemption preference to conduct trusted, traceable, and irreversible transactions without a third party.
Before step 1033 is executed to screen alternative banking sites meeting the user's redemption preferences from the first banking site by using the smart contract, as shown in fig. 3, the following step 301 may also be executed:
and acquiring the address of the user.
After step 301 is executed, step 1033 utilizes the smart contract to screen the first banking site for alternative banking sites that meet the user's redemption preferences, which may be executed as steps 10331 and 10332 as follows:
The address of the user can be the actual address of the user or an address designated by the user, and if the address is the actual address, the actual address can be obtained through the positioning of the user terminal under the condition of obtaining the terminal positioning authority.
In another implementation, since some locations are convenient to transport and may have less arrival time than some locations that are closer but less convenient to transport while riding a vehicle, in an embodiment of the present invention, the distance may also be measured in terms of transport time, and the user may set a vehicle for travel in the exchange preference, set the arrival time, and screen alternative banking sites that can be visited within the set arrival time while riding a particular vehicle or walking.
For all the exchange preferences, the user does not set any exchange preference or sets the exchange preference of one or more items, and if the user does not set the exchange preference, the first banking site is used as an alternative banking site; if one or more exchange preferences are set by the user, the alternative banking sites are screened from the first banking site together according to the exchange preferences.
In addition to the redemption price range and distance range, the redemption preferences may include other content, such as service wait time, redemption bank or expected transaction time, etc. in embodiments of the present invention. The service waiting time can be estimated according to the current bank outlets which have a plurality of foreign currency cash exchange appointment information and the average exchange service handling time, and the shorter the service waiting time is, the faster the user can finish the foreign currency cash exchange, and the better the experience is; the exchange bank is a bank which a user desires to exchange foreign currency and cash, and for example, the exchange bank can be set as a Chinese bank or an industrial and commercial bank; the expected transaction time may be set to a range of times in the future, such as 8 am to 10 am on 25 th month, according to which some banking sites that are not open for the time may be screened out.
The exchange preference can be set manually, after the exchange preference is set, corresponding information of each bank outlet is collected and stored in the block chain network, for example, when the exchange preference sets expected handling time, the bank outlets can be informed to upload business hours.
In the embodiment of the present invention, as shown in fig. 4, step 103 provides a list of alternative banking outlets to a user, and may be executed as following step 401 and step 402:
In another implementation manner of the embodiment of the invention, if any alternative bank outlets are not screened, the result which is not screened can be fed back to the user, and meanwhile, the screening range is expanded, for example, if the foreign currency reserve amount of any bank outlet is less than the exchange limit required by the user, the bank outlets which are added by two foreign currency reserve amounts and exceed the exchange limit can be screened, and the bank outlets which are added by three foreign currency reserve amounts and exceed the exchange limit can not be screened; for another example, if the bank outlets with the actual distance within the distance range cannot be screened, the bank outlets can be sorted and recommended to the user according to the sequence from near to far of the actual distance; for another example, if the bank outlets with the actual exchange prices within the exchange price range cannot be screened, the bank outlets may be ranked in the order of the actual exchange prices from low to high and then recommended to the user.
Therefore, the user can acquire the bank outlets which can exchange the foreign currency with sufficient amount as far as possible without the need of screening by the user.
And step 104, receiving a target network point selected by a user from the alternative bank network point list, submitting foreign currency and cash exchange reservation information to the target network point, and recording the foreign currency and cash exchange reservation information into the block chain network.
If the number of the screened alternative bank outlets is multiple, the user selects a target outlet from the screened alternative bank outlets; if the number of the screened alternative bank outlets is one, the user selects whether to go to the bank outlet for exchange, if the user determines the selection, the bank outlet is determined as a target outlet, and if the user refuses, the user can be prompted to reset the foreign currency cash requirement and screen again.
In the embodiment of the invention, based on the characteristics of block chain decentralization, traceability and the like, exchange information such as the quotation prices, the network point addresses, the foreign currency reserve amounts and the like of different bank network points is stored on a block chain network, and after a user selects a target network point, the foreign currency cash exchange reservation information is stored on the block chain network, so that the data storage is concise and clear, and can be traced and cannot be tampered; after the foreign currency cash demand submitted by the user, screening alternative bank outlets meeting the user demand for the user according to exchange information of each bank outlet stored in the block chain network, wherein the user can select one bank outlet as a target outlet and submit foreign currency cash exchange reservation information to the target outlet, so that the cross-bank foreign currency cash exchange reservation service is provided for the user, the intelligent matching between the bank outlets and the user demand is realized, and the user operation is simplified; meanwhile, the foreign currency cash requirement comprises exchange preference of the user, so that the bank outlets obtained by matching can meet the requirement of the user for exchanging sufficient foreign currency cash, the personalized requirement of the user is better met, and the user experience is further improved.
The embodiment of the invention also provides a foreign currency cash exchange reservation device based on the block chain, which is described in the following embodiment. Because the principle of the device for solving the problems is similar to the block chain-based foreign currency cash exchange reservation method, the implementation of the device can refer to the implementation of the block chain-based foreign currency cash exchange reservation method, and repeated parts are not described again.
As shown in fig. 5, the apparatus 500 includes a communication module 501, a query module 502, and a filter module 503.
The communication module 501 is used for receiving foreign currency cash demands submitted by a user, wherein the foreign currency cash demands comprise exchange limits and exchange preferences;
the query module 502 is configured to query exchange information of each bank branch through a blockchain network, where the exchange information includes a bid price, a branch address, and a foreign currency reserve amount;
the screening module 503 is used for screening alternative bank outlets meeting the requirement of foreign currency cash of the user according to the exchange information of each bank outlet, and the communication module 501 provides an alternative bank outlet list for the user;
the communication module 501 is further configured to receive a target website selected by a user from the list of alternative banking websites, submit foreign currency and cash exchange reservation information to the target website, and record the foreign currency and cash exchange reservation information into the blockchain network.
In one implementation of the embodiments of the present invention, the redemption preferences include a range of distances and a range of redemption prices; a screening module to:
screening a first bank branch with the foreign currency reserve amount exceeding the exchange limit from each bank branch;
generating an intelligent contract corresponding to each exchange preference according to the exchange preferences;
and screening alternative banking outlets which accord with the exchange preference of the user from the first banking outlet by using the intelligent contract.
In an implementation manner of the embodiment of the present invention, the apparatus further includes:
the acquisition module is used for acquiring the address of the user;
a screening module to:
calculating the actual exchange price of each first bank website according to the quotation and the exchange amount; calculating the actual distance between each first bank branch and the address of the user according to the branch address;
and determining the first banking outlet with the actual exchange price within the exchange price range and the actual distance within the distance range as the alternative banking outlet.
In an implementation manner of the embodiment of the present invention, the communication module is configured to:
sorting the alternative bank outlets according to the sequence that the actual distance is from near to far and the actual exchange price is from low to high to obtain a distance sorting list and a price sorting list;
providing a distance sorting list, a price sorting list and a switching option for a user, wherein the switching option is used for realizing the switching of distance sorting and price sorting, and when the user views the distance sorting list, actual exchange prices are displayed in the distance sorting list corresponding to each alternative bank website; and when the user views the price sorting list, displaying the actual distance corresponding to each alternative bank outlet in the price sorting list.
In the embodiment of the invention, based on the characteristics of block chain decentralization, traceability and the like, exchange information such as the quotation prices, the network point addresses, the foreign currency reserve amounts and the like of different bank network points is stored on a block chain network, and after a user selects a target network point, the foreign currency cash exchange reservation information is stored on the block chain network, so that the data storage is concise and clear, and can be traced and cannot be tampered; after the foreign currency cash demand submitted by the user, screening alternative bank outlets meeting the user demand for the user according to exchange information of each bank outlet stored in the block chain network, wherein the user can select one bank outlet as a target outlet and submit foreign currency cash exchange reservation information to the target outlet, so that the cross-bank foreign currency cash exchange reservation service is provided for the user, the intelligent matching between the bank outlets and the user demand is realized, and the user operation is simplified; meanwhile, the foreign currency cash requirement comprises exchange preference of the user, so that the bank outlets obtained by matching can meet the requirement of the user for exchanging sufficient foreign currency cash, the personalized requirement of the user is better met, and the user experience is further improved.
An embodiment of the present invention further provides a computer device, and fig. 6 is a schematic diagram of the computer device in the embodiment of the present invention, where the computer device is capable of implementing all steps in the foreign currency cash exchange reservation method based on the block chain in the embodiment, and the computer device specifically includes the following contents:
a processor (processor)601, a memory (memory)602, a communication Interface (Communications Interface)603, and a communication bus 604;
the processor 601, the memory 602 and the communication interface 603 complete mutual communication through the communication bus 604; the communication interface 603 is used for implementing information transmission between related devices;
the processor 601 is configured to call a computer program in the memory 602, and when the processor executes the computer program, the processor implements the foreign currency cash exchange reservation method based on the blockchain in the above embodiment.
The embodiment of the invention also provides a computer readable storage medium, which stores a computer program for executing the foreign currency cash exchange reservation method based on the blockchain.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A foreign currency cash exchange reservation method based on a block chain is characterized by comprising the following steps:
receiving a foreign currency cash demand submitted by a user, wherein the foreign currency cash demand comprises an exchange amount and exchange preference;
inquiring exchange information of each bank branch through a blockchain network, wherein the exchange information comprises a price, a branch address and a foreign currency reserve amount;
screening alternative bank outlets meeting the requirement of foreign currency cash of a user according to exchange information of each bank outlet, and providing an alternative bank outlet list for the user;
and receiving a target network point selected by a user from the alternative bank network point list, submitting foreign currency and cash exchange reservation information to the target network point, and recording the foreign currency and cash exchange reservation information into the block chain network.
2. The method of claim 1, wherein the redemption preferences include a range of distances and a range of redemption prices; according to the exchange information screening of each bank outlet, the alternative bank outlet which meets the requirement of foreign currency cash of a user comprises the following steps:
screening the first bank outlets with foreign currency reserve amount exceeding the exchange limit from each bank outlet;
generating an intelligent contract corresponding to each exchange preference according to the exchange preferences;
and screening alternative banking outlets which accord with the exchange preference of the user from the first banking outlet by using the intelligent contract.
3. The method of claim 2, wherein prior to screening the first banking site for alternative banking sites that meet the user's redemption preferences using the smart contract, the method further comprises:
acquiring the address of a user;
the method for screening the alternative banking outlets which accord with the exchange preference of the user from the first banking outlet by using the intelligent contract comprises the following steps:
calculating the actual exchange price of each first bank website according to the quotation and the exchange amount; calculating the actual distance between each first bank branch and the address of the user according to the branch address;
and determining the first banking outlets with the actual exchange prices within the exchange price range and the actual distances within the distance range as alternative banking outlets.
4. A method according to claim 3, wherein providing the user with a list of alternative banking outlets comprises:
sorting the alternative bank outlets according to the sequence that the actual distance is from near to far and the actual exchange price is from low to high to obtain a distance sorting list and a price sorting list;
providing a distance sorting list, a price sorting list and a switching option for a user, wherein the switching option is used for realizing the switching of distance sorting and price sorting, and when the user views the distance sorting list, actual exchange prices are displayed in the distance sorting list corresponding to each alternative bank website; and when the user views the price sorting list, displaying the actual distance corresponding to each alternative bank outlet in the price sorting list.
5. A foreign currency cash exchange reservation device based on a block chain is characterized by comprising:
the communication module is used for receiving foreign currency cash requirements submitted by a user, and the foreign currency cash requirements comprise exchange limits and exchange preferences;
the system comprises a query module, a processing module and a processing module, wherein the query module is used for querying exchange information of each bank branch through a blockchain network, and the exchange information comprises a quotation price, a branch address and a foreign currency reserve amount;
the screening module is used for screening alternative bank outlets meeting the requirement of foreign currency cash of the user according to exchange information of each bank outlet, and the communication module provides an alternative bank outlet list for the user;
and the communication module is also used for receiving a target network point selected by the user from the alternative bank network point list, submitting the foreign currency cash exchange reservation information to the target network point and recording the foreign currency cash exchange reservation information into the block chain network.
6. The apparatus of claim 5, wherein the redemption preferences include a distance range and a redemption price range; a screening module to:
screening the first bank outlets with foreign currency reserve amount exceeding the exchange limit from each bank outlet;
generating an intelligent contract corresponding to each exchange preference according to the exchange preferences;
and screening alternative banking outlets which accord with the exchange preference of the user from the first banking outlet by using the intelligent contract.
7. The apparatus of claim 6, further comprising:
the acquisition module is used for acquiring the address of the user;
a screening module to:
calculating the actual exchange price of each first bank website according to the quotation and the exchange amount; calculating the actual distance between each first bank branch and the address of the user according to the branch address;
and determining the first banking outlets with the actual exchange prices within the exchange price range and the actual distances within the distance range as alternative banking outlets.
8. The apparatus of claim 7, wherein the communication module is configured to:
sorting the alternative bank outlets according to the sequence that the actual distance is from near to far and the actual exchange price is from low to high to obtain a distance sorting list and a price sorting list;
providing a distance sorting list, a price sorting list and a switching option for a user, wherein the switching option is used for realizing the switching of distance sorting and price sorting, and when the user views the distance sorting list, actual exchange prices are displayed in the distance sorting list corresponding to each alternative bank website; and when the user views the price sorting list, displaying the actual distance corresponding to each alternative bank outlet in the price sorting list.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 4 when executing the computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1 to 4.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114862235A (en) * | 2022-05-23 | 2022-08-05 | 中国银行股份有限公司 | Method and device for processing number of foreign currency service terminals |
| CN114881274A (en) * | 2022-05-19 | 2022-08-09 | 中国银行股份有限公司 | Resource reservation method, device and equipment based on block chain |
| CN115409617A (en) * | 2022-11-01 | 2022-11-29 | 北京联合货币兑换股份有限公司 | Foreign currency exchange method and system based on block chain |
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2021
- 2021-10-20 CN CN202111219584.8A patent/CN113935507A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114881274A (en) * | 2022-05-19 | 2022-08-09 | 中国银行股份有限公司 | Resource reservation method, device and equipment based on block chain |
| CN114862235A (en) * | 2022-05-23 | 2022-08-05 | 中国银行股份有限公司 | Method and device for processing number of foreign currency service terminals |
| CN115409617A (en) * | 2022-11-01 | 2022-11-29 | 北京联合货币兑换股份有限公司 | Foreign currency exchange method and system based on block chain |
| CN115409617B (en) * | 2022-11-01 | 2022-12-27 | 北京联合货币兑换股份有限公司 | Foreign currency exchange method and system based on block chain |
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