CN106570741A - Application of automatic matching method in network spot transaction platform - Google Patents
Application of automatic matching method in network spot transaction platform Download PDFInfo
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- CN106570741A CN106570741A CN201610926882.3A CN201610926882A CN106570741A CN 106570741 A CN106570741 A CN 106570741A CN 201610926882 A CN201610926882 A CN 201610926882A CN 106570741 A CN106570741 A CN 106570741A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
- G06Q30/0605—Supply or demand aggregation
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Abstract
The invention relates to application of an automatic matching method in a network spot transaction platform. A generalized computer system (including but not limited to a fixed or mobile intelligent computing multifunctional equipment terminal) and a network system thereof are taken as a substance carrier, present computer and network technologies are used, the automatic matching method is used, and core functions are realized. The invention aims at solving the technical problem that in a preset technical method, spot transaction realized by information display, manual query and browsing and mutual negotiation is low in efficiency and even includes cheating and lagged information. According to application in the invention, information display, query and browsing and mutual negotiation are not needed, the system makes automatic matching and notifies the two party, secretes, strategies and privacies of the two transaction parties are protected, the cost is reduced, and the efficiency and timeliness are improved.
Description
Technical field：
The research and development of products team of company, with existing computer technology and network technology means, with reference to specialty
The contract agreement integrated condition key elements such as transaction important document, standard, logistic storage, finance, are brought together the technical method of matching automatically,
Network spot exchange platform product has been invented in autonomous research.(www.bocc.cc)
Background technology：
The core business logic module of the innovative product, using internal memory matching is brought together automatically, is handed in dynamic spot transaction
During easily, the relevant data being related in plateform system and condition element, by well-designed program, whole storage organizations exist
In the internal memory of server, bring matching process together automatically and do not come into contacts with disk database, do not visit again data base, bring result together with
Asynchronous system write into Databasce, while internal storage data keeps updating in real time with the data in data base, it is ensured that both is consistent
Property.
Internal memory brings the core of matching algorithm together, is the data for brining matching queue or data pool together automatically of submission in internal memory
Organizational form, insertion that can be more efficient is submitted to, is searched and is deleted.Platform adopts memory caching technology, reduces magnetic disc i/o operation
With reference to the utilization of multi -CPU and multithreading, to improve the performance for brining matching together automatically.
The process of brining together pertains only to the read-write of internal storage data and the sequential update of journal file.
Whole system platform can be designed to two queues or two data pools, buy queue and sell queue or buy data
Pond and sell data pool.Multiple queues or multiple data pools can also be designed to.Can be with individually designed according to each product
Dequeue or data pool.They all scoop up automatically according to the basic principle of " price quantity is preferential, time priority under equal conditions "
Matching is closed, the extensibility of the matching frame and service logic is brought together automatically, different strategy is brought together in order to what is can increased later
Extensibility is provided with condition of brining together.
The content of the invention：
In network spot exchange field, with generalized computing machine system (also including but not limited to fixed or mobile intelligence
Calculate multifunctional equipment terminal) and its network system as material carrier, by the transaction important document of specialty, standard, logistic storage, gold
The integrated condition key element of contract agreement such as melt, with existing computer technology and network technology, according to the logic being pre-designed,
The high efficiency that spot exchange is completed using matching technique method is brought together automatically is realized.Technical method technology to be solved
Problem is：Currently available technology method, is often shown using information, artificial to participate in consulting the tradition for browsing and connecting each other negotiation
Technical method come realize poor efficiency spot exchange.And the utilization of the innovative technology method, can show without information, manually look into
Read and browse and connect each other negotiation, and the high efficiency for being automatically performed spot exchange is realized.Solve the technology that its technical problem is adopted
Scheme refer to " specific implementation method ", and the beneficial effect of the method is：In the case of not exhibition information, plateform system is automatic
Bring matching together, automatically generate contract and notify both parties, protect the secret of both parties, strategy and privacy, improve running
Efficiency, reduces cost.
With above-mentioned technical method, research and develop network spot exchange platform product to complete the height of spot exchange
Efficiency is realized.The network spot exchange platform product, can service the whole nation even with standardized designs, include global international existing
Barter deal.
It is many with the essence of every other product platform in the market difference because being innovation, enumerate it is several with
In the market every other product platform essential distinction, contrasts for reference：
Description of the drawings：
Fig. 1 is spot exchange platform process figure.
Fig. 2 is spot exchange platform Role Classification sketch.
Fig. 3 is spot exchange platform feature module sketch.
Fig. 4 is spot exchange platform overall technology simplified schematic diagram.
Fig. 5 is spot exchange platform database structure diagram.
Fig. 6 is spot exchange platform data storage displaying figure.
Fig. 7 is spot exchange platform member's centre point sketch.
Fig. 8 is spot exchange platform client service center functional design sketch.
Fig. 9 is spot exchange backstage management of platform sketch.
Figure 10 is spot exchange platform match system function sketch.
Figure 11 is spot exchange platform homepage ingredient figure.
Figure 12 is spot exchange platform log-in interface figure.
Figure 13 is spot exchange platform register interface figure.
Figure 14 is spot exchange platform transaction energy kind sketch.(range of goods of transaction include but not limited to and is opened up
The kind shown)
Figure 15 is spot exchange platform transaction chemical industry kind sketch.(range of goods of transaction include but not limited to and is opened up
The kind shown)
Figure 16 is spot exchange platform transaction non-ferrous metal kind sketch.(range of goods of transaction include but not limited to
The kind for being shown)
Figure 17 is spot exchange platform transaction ferrous metal kind sketch.(range of goods of transaction include but not limited to
The kind for being shown)
Figure 18 is spot exchange platform transaction platinum group metal kind sketch.(range of goods of transaction include but not limited to
The kind for being shown)
Figure 19 is spot exchange platform transaction noble metal kind sketch.(range of goods of transaction include but not limited to institute
The kind of displaying)
Figure 20 is spot exchange platform transaction agricultural product kind sketch.(range of goods of transaction include but not limited to institute
The kind of displaying)
Figure 21 is spot exchange platform transaction mineral products alloy kind sketch.(range of goods of transaction include but not limited to
The kind for being shown)
Figure 22 is spot exchange platform transaction rare metal kind sketch.(range of goods of transaction include but not limited to
The kind for being shown)
Figure 23 is that spot exchange platform submits methanol buy order displaying figure to.
Figure 24 is spot exchange platform buy order Third-party payment displaying figure.
Figure 25 is spot exchange platform buy order stateful transaction displaying figure.
Figure 26 is spot exchange platform member's message center displaying figure.
Figure 27 is that spot exchange platform submits methanol selling displaying figure to.
Figure 28 is spot exchange platform selling Third-party payment displaying figure.
Figure 29 is spot exchange platform selling stateful transaction displaying figure.
Figure 30 is spot exchange platform member's message center displaying figure.
Figure 31 is spot exchange platform order matching mail notification displaying figure.
Figure 32 is spot exchange backstage management of platform function displaying figure.
Figure 33 is spot exchange platform backstage spot exchange state displaying figure.
Figure 34 is spot exchange platform backstage spot exchange record display figure.
Figure 35 is spot exchange platform backstage fund record display figure.
Figure 36 is spot exchange platform backstage Lu gold coin record display figure.
Figure 37 is that cash audit displaying figure is extracted on spot exchange platform backstage.
Figure 38 is spot exchange platform backstage company certification examination ＆ verification displaying figure.
Figure 39 is spot exchange platform Backend parameter configuration displaying figure.
Figure 40 is spot exchange platform backstage exchange quotation data statisticss displaying figure.
Figure 41 is spot exchange platform background management displaying figure.
Specific implementation method：
The spot exchange platform B/S system implementations
1 system survey
1.1 the contents of a project
This project be it is a set of bring matching system together automatically, intelligence is carried out to the terms of trade of both parties by software system
Automatically bring matching together, electronic contract is automatically generated after the match is successful, and notify that both parties are complete by way of note and mail
Into off-line transaction.It is related to third party's short message interface, mailbox interface, payment interface etc..Function point is listed as follows：(including but not
It is only limitted to following functions point)
1.2 user sides/web front-end：
1st, User logs in and information management；
2nd, customer transaction merchandise control operation and status display；
3rd, placing an order online, it is easy to remove single cross；
4th, commodity transaction statistics
Backstage OA systems：
1st, foreground webpage function treatment
2nd, user management
3rd, system-based data are arranged and managed：Service charge ratio, integration ratio effect duration etc..
4th, analysis, transaction modules (core) are brought together
Four contents are interacted with data base.
1.3 development technique
Developed using .NET development environments, front end instruction is realized using HTML+CSS+JQUERY, backstage OA systems
System is developed using FineUI.
1.4 data base
Developed using SqlServer database, or using MySql can also, the later stage is big if there is concurrency
Situation, we using Redis major keys data base and ElasticSearch search engine databases carry out data storage and
The fast search of data.
1.5 developing instrument
UI designer will be designed G- Design using PS instruments, and UE designer will carry out prototype figure using Axure instruments
Exploitation, front end engineer will be developed using WebStorm, and rear end engineer will carry out data base's mould using PowerDesign
Type is designed, and using Visual Studio2013 the exploitation of system is carried out.
1.6 general technical explanations
(1) sqlserver is adopted using .NET platform architecture data bases, it is necessary to assure system has opening system and connects
Mouthful, it is ensured that system possesses stronger from maintainability, and can follow the technical specification of correlation.
(2) using B/S structures, client is browser form, the serial browsers of all page compatibility IE and Firefox systems
The current major browsers such as row browser-safe, interface possesses first-class aesthetic quality, meets W3C standards.Only allow using certainly
Dynamic download installs client component.
(3) adopt Object-Oriented Exploring Technology, foreground to adopt without refresh technique, developed using MVC pattern.
(4) to improve system maintainable and upgrade requirement in the future, the related all codes of system must increase income and system is closed
The component and operation layer of key needs to provide perfect secondary development explanation document.
(5) website visiting efficiency is improved using technologies such as dynamic page static and speed bufferings, it is desirable to doc can be realized
Or the mutual conversion between pdf files and html files.
(6) system design security requirement
1) consolidation process that ip tracking and the authority of conducting interviews to data base is limited；
2) attack patterns such as all kinds of JS embedded, SQL leaks, HTTP leaks can be taken precautions against；
(7) performance indications are required
3) system run all right reliability, concurrent access ability is not less than 1000 person-times；
4) while online user number is supported to be more than 5000 people；
5) system response time homepage is less than 3 seconds, and other pages are less than 5 seconds；
6) retrieval time be less than 3 seconds/ten thousand, complex operations response time be less than 30 seconds；
7) system false alarm rate ＜ 1%；
8) provide and the supporting rational hardware configuration scheme of software.
1.7 exploitation overall architectures
Developed using MVC, using ORM data base's support is carried out.
Understand：(referring to Fig. 6)
01 UI：Put all of project that user is exposed to regard to Web, WebApp, interface etc..
02 UI Common：Put the project that all methods general to UI layers are packaged storage
03 Business Logic：Business Logic, including BLL and Model, system default can pass through T4 template generations
Model database models and it is general call BLL methods, if necessary to automatically, need newly-built in XXXX (project) _ BLL
Class, name and NameSpace are needed as automatically generated
04 Core：Some configuration items for changing project and the method for enumerating class etc. and some unusual cores are put, can be become
The class libraries of FrameWork frameworks.
05 Reference：Put third party's class libraries.
06 Tests：Storage test class.
1.8 system architecture
Refer to Fig. 4.
1.9 database schema
Refer to Fig. 5.
2.0 users classify：
Refer to Fig. 2.
2.1 member centers：
Refer to Fig. 7.
● registration is logged in：User's registration and login, user carries out submission relevant information on foreground, and backstage can also be recorded
Enter, and give password for change.● authentification of message：
● mailbox certification：System to user sends a certification mail, is the link for including certification in mail, and user clicks on
It is effective in 24 hours by the certification of mailbox after the authentication url.
● cell-phone number certification：System to the phone number of user sends the note comprising identifying code, and user is input into after receiving
The identifying code can be by the certification of cell-phone number.
● company's qualification certification：
On condition that only can just carry out the qualification certification of company after mailbox certification and mobile phone certification.
The corporate user of certification is transferred accounts by Bank Account Number to the Third-party payment account that system is specified, then system
Manager will be examined the fund for receiving, and then complete the certification of user identity.
Authenticating user identification reminds user by way of rear system is by by mail and note.
● personal information management：
Check personal information
Modify password
● integration managing：
Register daily, integration inquiry；1 integrates=1 yuan (system arranges dead)；Integration effectiveness is set as 2
Individual month, remove automatically after 2 months (integration that June obtains, effect duration is to by the end of July).
Every month, accumulative turnover reached more than 1,000,000, and reward points are given according to a certain percentage, and (backstage arranges and gives
Ratio).
● account management：
Turn over guarantee fund, account charging and withdraw deposit, account fund inquiry.
● issue Transaction Information：
User can be according to the data of system background typing, including the type of product and the title of product are selected, choosing
Select purchase product or sell product, fill in the fields such as phase dutiable value and area.
User carries out needing to judge whether the guarantee fund's amount of money in user account reaches system when issue Transaction Information
The certain proportion of total Value of Contract set in advance, if being not reaching to need first to supplement with money and pay commissions, soft dollars into
Just can be issued after work(.
● transaction payment：
Transaction payment is completed by calling Third-party payment interface.
● Transaction Information is managed：
After transaction success, buyer deducts a commission, and both parties receive contract.Increase total mark of consumption (has in integration module
Illustrate).If Fail Transaction, service charge is returned by both parties.
And in process of exchange, Transaction Information is that, with effect duration, effect duration is 1 day (date is that system is fixed),
Transaction Information is revoked after over-time.User can also manually be cancelled on backstage to transaction message.
● message center
It is mainly used in the inside story of reception system.
2.2 client service center：
Refer to Fig. 8
● member management：
Management to foreground member, checks membership information etc., can arrange each user's guarantee fund's expense.
● integration inquiry
The integration of inquiry unique user.
● examination ＆ verification certification
Company's qualification is authenticated.
● Transaction Inquiries
Transaction List Table is shown, order is brought in the transaction for inquiring about the same day together.
2.3 back-stage management：
Refer to Fig. 9.
● rights management
System has permission distribution
● customer service is managed
Customer service user is managed collectively according to different roles.
● bulletin management
Issuing web site notice information, is managed to notice information, and website front end shows.
● notify management
System manager can send inside story to all members or single member.
● category management
Commodity to brining together carry out Classification Management.
● merchandise control
Commodity to brining together are managed, including arrange the commission of each commodity.
● electronic contract Template Manager
Background system will be imported by a contract template using word.
● statistical management
It is main that transaction statistics and statistics of getting a profit are managed collectively
2.4 match system：
Refer to Figure 10.
● multithreading match orders
Match system will be designed using B/S structures, and all of order is matched using multithreading, the reading of data
Taking and write all will be using Redis data base.
When order is newly-increased, system can be inquired about all of order according to condition is brought together, most suitable to match
Order is used to generate electronic contract.
The condition of system matches be trade name, complete a business transaction other conditions such as univalent (setting least units) it is identical or
Person is brought together matching automatically in the case of overlapping.
● generate electronic contract
Background system will be imported by a contract template using word.After system matches one single dealing of success,
System can be automatically according to the electronic contract of electronic contract template generation PDF.
● the distribution of electronic contract
Download in the order of the conclusion of the business hurdle that the electronic contract of generation can be after Email attachment and login system, backstage system
System also has the list of electronic contract
The implementation method of the spot exchange platform product is described below：
A kind of product, methanol is selected to illustrate the process concluded the business：
Submit methanol buy order to, select various commercial terms and submit to.Refer to Figure 23
Click on and submit firm offer to, into the payment page：Refer to Figure 24
After completing to pay, the situation and details of the firm offer of submission can be checked in my stateful transaction：Please join
See Figure 25
Member understands very first time acquisition SMS notification, and in the message the heart views the notice for submitting firm offer to, simultaneity factor
Very first time mail notification manager.Refer to Figure 26.
More than, it is the process for submitting buy order to as a member.The quantity for submitting various tradable commodity buy order members to is huge
Big.
Then the overall process that another member submits selling to is demonstrated, the match is successful in order to be able to bring together automatically, and we are intentional
As condition is chosen to the condition of buy order above, to facilitate conclusion of the business.
Submit methanol selling to, select various commercial terms and submit to.Refer to Figure 27
Click on and submit firm offer to, into the payment page：Refer to Figure 28
After completing to pay, the situation and details of the firm offer of submission can be checked in my stateful transaction：Please join
See Figure 29
Member understands very first time acquisition SMS notification, and in the message the heart views the notice for submitting firm offer to, simultaneity factor
Very first time mail notification manager.Refer to Figure 30
More than, it is the process for submitting selling to as another member.Submit the quantity of various tradable commodity selling members to
It is huge.
Dealing member submits respectively respective buy order and selling to, if the commercial terms of both sides for this product of methanol
Identical or interval overlap covers (price range, quantity is interval, multinomial selection), then, system can automatically bring that the match is successful together,
And electronic contract is automatically generated, in the form of adnexa, it is sent automatically to the mailbox of both parties member.Simultaneity factor automatic short message
Both parties member is notified, in my message of both parties member, the notice for congratulating to strike a bargain also is had.At the same time, system
Automatically mail notification manager is sent out.The mailbox contents displaying of manager and dealing member is sent automatically to, Figure 31 is refer to.
The quantity of the product on platform can constantly increase, and the commercial terms of transaction also can constantly increase and improve, than
As price is designed to interval, quantity is designed to interval for buy order, can increase and bring successful probability together, and commercial specification can also
Multinomial selection etc. is provided.For each product, when the quantity of the dealing firm offer that both parties submit to is larger, will
Conditional to coincide, interval overlap, meet service logic brings matching together for conclusion of contract automatically, and the speed for striking a bargain
It is exceedingly fast.Originally the signing of a contract was completed, the time in several days even several weeks was needed, on this platform, after submitting firm offer to,
As long as there is the trading object for meeting condition, the conclusion of the business of contract will complete even faster, to greatly improve spot exchange in millisecond
Efficiency and social economy's operation efficiency, the significant increase of efficiency imply that the very big creation of social value！
So far, both parties have submitted respectively respective dealing firm offer to background server end, from technical standpoint, server
Memory modules can form two and line up, buy and line up and sell to line up, can ceaselessly carry out computer and bring matching, Zhi Daocheng together automatically
Till friendship.If any the firm offer not struck a bargain, can manually cancel or timing is cancelled automatically.Bring the key word business of matching together
Condition etc., will also adjust according to the continuation improvement and optimization that needs of business development and turn of the market later.The business for brining matching together is patrolled
It also can be optimization to collect, so that performance is persistently lifted.
Claims (2)
1. in network spot exchange field, by generalized computing machine system (in terms of also including but not limited to fixed or mobile intelligence
Calculate multifunctional equipment terminal) and its network system as material carrier, by the transaction important document of specialty, standard, logistic storage, finance
Deng the integrated condition key element of contract agreement, with existing computer technology and network technology, according to the logic being pre-designed, make
The high efficiency that spot exchange is completed with matching technique method is brought together automatically is realized.
2. in network spot exchange field, by generalized computing machine system (in terms of also including but not limited to fixed or mobile intelligence
Calculate multifunctional equipment terminal) and its network system as material carrier, by the transaction important document of specialty, standard, logistic storage, finance
Deng the integrated condition key element of contract agreement, with existing computer technology and network technology, according to the logic being pre-designed, make
With matching technique method is brought together automatically, the network spot exchange platform product researched and developed is completing the efficient of spot exchange
Rate is realized.
The technical characteristic of the technical method and the spot exchange platform product produced with the method is：By condition element,
Brought together matching automatically with existing computer technology and network technology, it is efficient to realize spot exchange；Require to protect
Protecting scope is：In network field+spot exchange territory, do not allow with it is existing or innovation computer technology and
Network technology is brought together the comprehensive bar of the contract agreements such as the professional transaction important document of matching, standard, logistic storage, finance automatically
The method of part key element and the product platform developed based on the method.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016105497927 | 2016-07-08 | ||
| CN201610549792 | 2016-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106570741A true CN106570741A (en) | 2017-04-19 |
Family
ID=58534240
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610926882.3A Pending CN106570741A (en) | 2016-07-08 | 2016-10-21 | Application of automatic matching method in network spot transaction platform |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107274265A (en) * | 2017-06-09 | 2017-10-20 | 吴涵 | A kind of internet ticket selling system |
| CN107330788A (en) * | 2017-06-15 | 2017-11-07 | 雷盈科技（上海）有限公司 | A kind of block chain digital asset transaction match method, system, device and medium |
| CN107944053A (en) * | 2017-12-22 | 2018-04-20 | 江苏满运软件科技有限公司 | The search method of lorry and the source of goods in a kind of arterial highway logistics |
| CN108053320A (en) * | 2017-11-07 | 2018-05-18 | 深圳市崇广科技有限公司 | Financing trade matching method of the same trade or business, equipment and computer readable storage medium |
| CN109388424A (en) * | 2017-08-02 | 2019-02-26 | 阿里巴巴集团控股有限公司 | A kind of method and system interacting demand |
| CN109409990A (en) * | 2018-10-10 | 2019-03-01 | 北京知道创宇信息技术有限公司 | Match method of trading and device |
| CN109727095A (en) * | 2018-12-29 | 2019-05-07 | 物融通科技有限责任公司 | Capital construction electric business system suitable for supply chain |
| CN110264092A (en) * | 2019-06-24 | 2019-09-20 | 北京向上一心科技有限公司 | Simulate stock trading method, system, equipment and medium |
| CN110310133A (en) * | 2019-07-01 | 2019-10-08 | 西南财经大学 | A kind of transaction of rare metal and service system |
| CN111598694A (en) * | 2020-05-12 | 2020-08-28 | 广东电力交易中心有限责任公司 | Electric power transaction method and device, computer equipment and storage medium |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107274265A (en) * | 2017-06-09 | 2017-10-20 | 吴涵 | A kind of internet ticket selling system |
| CN107330788A (en) * | 2017-06-15 | 2017-11-07 | 雷盈科技（上海）有限公司 | A kind of block chain digital asset transaction match method, system, device and medium |
| CN107330788B (en) * | 2017-06-15 | 2021-01-26 | 沈陶磊 | Block chain digital asset transaction matching method, system, device and medium |
| CN109388424A (en) * | 2017-08-02 | 2019-02-26 | 阿里巴巴集团控股有限公司 | A kind of method and system interacting demand |
| CN109388424B (en) * | 2017-08-02 | 2022-03-25 | 阿里巴巴集团控股有限公司 | Method and system for carrying out interaction requirement |
| CN108053320A (en) * | 2017-11-07 | 2018-05-18 | 深圳市崇广科技有限公司 | Financing trade matching method of the same trade or business, equipment and computer readable storage medium |
| CN107944053A (en) * | 2017-12-22 | 2018-04-20 | 江苏满运软件科技有限公司 | The search method of lorry and the source of goods in a kind of arterial highway logistics |
| CN109409990B (en) * | 2018-10-10 | 2020-09-08 | 北京知道创宇信息技术股份有限公司 | Transaction matching method and device |
| CN109409990A (en) * | 2018-10-10 | 2019-03-01 | 北京知道创宇信息技术有限公司 | Match method of trading and device |
| CN109727095A (en) * | 2018-12-29 | 2019-05-07 | 物融通科技有限责任公司 | Capital construction electric business system suitable for supply chain |
| CN110264092A (en) * | 2019-06-24 | 2019-09-20 | 北京向上一心科技有限公司 | Simulate stock trading method, system, equipment and medium |
| CN110310133A (en) * | 2019-07-01 | 2019-10-08 | 西南财经大学 | A kind of transaction of rare metal and service system |
| CN111598694A (en) * | 2020-05-12 | 2020-08-28 | 广东电力交易中心有限责任公司 | Electric power transaction method and device, computer equipment and storage medium |
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