CN110288425B - Agricultural product production and marketing butt joint system - Google Patents
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Abstract
The invention relates to a production and marketing butt joint system for agricultural products, which comprises: a client and a server; the server side is used for providing the required data for the client side and receiving and storing the client side input data; the client comprises a producer information input module, a demand information input module and an administrator module; the server side comprises an order matching module and a database. The invention also provides a convex optimization algorithm based on the constraint condition, and a plurality of alternative schemes can be provided for a certain matching requirement according to factors such as planting time to market, production quantity, sales volume proportion and the like. The invention can provide a multi-path input path for a producer, and ensures the successful input of information; the system authority mechanism and the transparent matching method ensure that the butt joint information is equivalent and fair butt joint is realized; can provide help for the producers who have difficulty in selling and the risk of lost sales; corresponding matching schemes can be provided for different practical situations based on different rules.
Description
Technical Field
The invention relates to the field of commodity circulation information service, in particular to an agricultural product production and marketing butt joint system.
Background
At present, an effective message circulation management mechanism is lacked between production and marketing butt joints in China, and statistics on planting types, yield and planting and selling time of crops in villages and towns by marketing agencies is difficult, so that the situations of late information circulation of agricultural and livestock products, uncertain market price of agricultural products, unsmooth product circulation, poor marketing and the like are caused. In recent years, based on the high-speed development of the current modern information, electronic, network, intelligent control and other technologies, although a series of production and marketing butt-joint systems emerge, the data informatization degree in the agricultural product production and marketing process is improved to a certain extent. However, there are many problems with the system. The summary is as follows:
1) most of the systems are only a platform for collecting and presenting information of both butting parties and even only production information of a production party. Although the existing system can realize the matching of both the supply and the demand, the matching algorithm is too single, so that various conditions possibly occurring in practice cannot be intelligently dealt with, and meanwhile, the overall control on the connection is not facilitated; or the algorithm is too inefficient to support matching requests at higher frequencies.
2) The unequal disclosure degree of the producer information and the demand side order information easily makes one of the two supply and demand sides in the docking process at a disadvantage.
3) For a production party with the risk of selling products, effective measures are difficult to take for taking care and assisting.
4) The education level of the production party and the popularization level of intelligent equipment (such as a mobile phone and a computer) are not fully considered, and many production parties cannot input production information in time or even have no way at all.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a production and marketing butt joint system for agricultural products. The invention solves the problems that the information of the production party is inconvenient to input or can not be input, the butt joint process is not fair, and one party is in a disadvantage; the supply and demand relationship can not be established for supporting or providing matching for a production party with difficult sale and the risk of lost sales; or the technical problem that diversified matching schemes cannot be efficiently and intelligently provided for various possible scenes.
The invention aims to solve the problems and establish a complete butt joint system for supply and demand information input, intelligent matching, matching result display and confirmation, late sale early warning and statistical data display.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
an agricultural product production and marketing docking system comprising: a client and a server;
the server side is used for providing the required data for the client side and receiving and storing the data input by the client side;
the client comprises a producer information input module, a demand information input module and an administrator module;
the producer information input module: the system base module is used for inputting a production information order into the production direction database and providing data support;
the demander information input module is used for: the system base module is used for inputting a demand information order into a demand direction database and is provided with a demand direction authority;
the administrator module includes: the device comprises a matching result confirming module, a late selling early warning module and a statistical data display module;
the administrator module is used for managing the matching result confirmation module, the late selling early warning module and the statistical data display module by an administrator;
the matching result confirmation module: the matching scheme is used for presenting the matching scheme provided by the order matching module and providing the support of the confirmation or cancellation operation of the matching scheme; and after the matching scheme is confirmed, establishing an actual trading relation for the matching parties, updating database information, and finally presenting final docking information to the matching parties.
The lost-sales early warning module: the system is used for judging whether the producer has the risk of delay in sale or not according to the set marketing end time; and the producer with the risk of sale delay is warned to the administrator, and a proper solution is provided for the producer.
The statistical data display module: and the system is provided with a value improving module for data screening according to fields such as production areas, production types and the like, and the total production condition is counted and known. The server side comprises an order matching module and a database;
the order matching module: the system core module is used for efficiently and intelligently providing diversified matching schemes for a producer and a demander aiming at various scenes and based on different rules;
the database is used for storing information input by the information input module of the demand side and the information input module of the production side;
on the basis of the scheme, the client supports a multi-terminal entry mode, the terminal comprises a computer terminal and a PC terminal, and a producer who does not meet the self-entry condition completes entry at the PC terminal through the assistance of an administrator.
On the basis of the above scheme, the demander authority includes:
before order confirmation, a demand side can only check the product information of a production side, but cannot check the main body information and the guaranteed price in the registration of the production side; the main body information comprises a main body category, a main body contact person name and a main body contact person contact way; the subject categories comprise a large household, a cooperative society and an enterprise;
after the order is confirmed, the demand side can check the main body information and the guaranteed price of the corresponding production side.
On the basis of the above scheme, the various scenarios described by the order matching module include:
pairing: one producer order corresponds to one demander order;
combining orders: a producer order supplies a plurality of requirers orders;
combined supply: one demand order is provided by multiple producer orders together.
On the basis of the scheme, the administrator is divided into different levels and sets different authorities for the administrators of different levels;
the administrator is classified into: super manager, second manager, third manager, fourth manager;
the different permissions are: the super manager can add, delete, modify and check all data, the super manager can modify and delete the information after order confirmation, the second-level manager can add, modify and check the data of the towns and towns, the third-level manager can add, modify and check the data of the streets, and the fourth-level manager can add, modify and check the data added by the fourth-level manager;
aiming at the fact that diversified matching schemes are efficiently and intelligently provided for an order matching module based on different rules, the invention designs a convex optimization algorithm based on constraint conditions, and matching of different rules can be efficiently realized by modifying objective functions, including adding and deleting sub-functions, modifying sub-function forms and adjusting parameters;
the convex optimization algorithm based on the constraint condition is specifically realized as follows:
the objective function is:
wherein: m is the number of items of product information, N is the order number, Ot is the scheduled time of the order, Et is the product sale time, Op is the order price, Ep is the product low price, xijProviding a product quantity for a product i to an order j, wherein sigma is a parameter for controlling the sparsity of supply, i is the product, and j is the order;
t is a time difference function and has the basic form:
T(x，y)＝x-y+0.5，
p is a price difference function and has the basic form:
P(x，y)＝x-y+0.5
wherein, 0.5 plays a role in smoothing and ensuring correct operation when x and y are close or even the same.
When P is in the basic form, the objective function numerator can represent the opposite of the producer's profit, i.e.: during optimization, the minimum value of an objective function, denominator T (Ot) is obtainedj，Eti) Is the freshness of the product, i.e.: the later the sale time, the less profit.
On the basis of the scheme, when the product is required to be sold as soon as possible after the product is sold, the T (x, y) function is modified, and the sensitivity to the time difference is improved:
T(x，y)＝(x-y)2+0.5；
on the basis of the scheme, when the matching with less supply quantity is reduced, the matching result can be more sparse by increasing the sigma value;
on the basis of the scheme, when the product transportation distance between the producer and the demander is considered to be as close as possible, a transportation distance function L (Ol) is added into the objective functionj，Eli)；
The distance function L (Ol)j，Eli) For calculating the distance required to transport a product from a delivery address specified by a producer to a delivery address specified by a demander:
wherein Ol is a delivery address designated by a demand side, and El is a delivery address designated by a production side.
The invention has the beneficial effects that:
1) providing a multi-path input path for a producer, and ensuring the successful input of information;
2) the system authority mechanism and the transparent matching method ensure that the butt joint information is equivalent and fair butt joint is realized;
3) can provide help for the producers who have difficulty in selling and the risk of lost sales;
4) corresponding matching schemes can be provided for different practical situations based on different rules;
5) the data statistics are helpful for analysis and decision of local government and timely adjustment of local production policy.
Drawings
The invention has the following drawings:
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The present invention is described in further detail below with reference to fig. 1.
The invention provides a production and marketing butt joint system for agricultural products. The system is divided into three functions: the system comprises a registration function, an order matching function, a sale delay early warning function and a data statistics function of both the supply and demand parties. The system plate is divided into an administrator module, a production party information input module (mobile phone end), a demand party information input module (mobile phone end) and a server end (PC end).
Aiming at the defects of the traditional docking system, the system realizes the following improved specific implementation mode:
and (3) multi-way production side input: a producer who has the capability of automatically inputting production information can automatically register the production information by a producer registration system, and an administrator checks the accuracy and the normalization of the registered content; villagers without the ability to register themselves can complete the registration work at the mobile terminal or the PC terminal under the assistance of the administrator.
The authority mechanism is as follows: the system provides a multi-level management mechanism, and different levels of administrators correspond to different levels of permissions. In order to guarantee the benefits of both parties, the system limits the information acquisition permission of the producer and the demander. The demander system can only check the product information in the registration of the producer, but can not check the main information (main category: major, cooperative, enterprise; main contact name, main contact information) in the registration of the producer; in order to protect the benefit of the producer, the registered guaranteed sale price cannot be checked; after the order is confirmed, the demander can check the main body information of the corresponding provider. Meanwhile, in order to ensure effective completion of the transaction, after the order is confirmed, the information can be modified and deleted only by a super administrator.
The intelligent lost sales early warning function:
when the producer registers that the time to market begins but no order is made or registers that the time to market ends is until the product has not been sold in its entirety, the system alerts the administrator at the administrative interface. The administrator selects the appropriate sales plan for them in conjunction with the overall production situation (which may be derived by the statistics presentation module).
Intelligent order matching function:
the docking system operates around this order matching function. The following various order matching modes can be completed:
pairing: a producer register corresponding to a consumer register;
combining orders: a producer supplying a plurality of consumers;
combined supply: a demand order is provided by a plurality of producers in common.
A convex optimization algorithm based on constraint conditions can provide a plurality of alternatives for a matching demand according to planting time to market, production capacity, sales volume proportion and other factors, and the order information of a register and the order state of a demand side are updated after confirmation of the matching demand by an administrator.
A convex optimization algorithm based on constraint conditions is specifically realized as follows:
the objective function is:
wherein: m is the number of items of product information, N is the order number, Ot is the scheduled time of the order, Et is the product sale time, Op is the order price, Ep is the product low price, xijProviding a product quantity for a product i to an order j, wherein sigma is a parameter for controlling the sparsity of supply, i is the product, and j is the order;
t is a time difference function, x and y are time stamps of the T and the Y, and the basic form is as follows:
T(x，y)＝x-y+0.5，
p is a price difference function and has the basic form:
P(x，y)＝x-y+0.5
wherein, 0.5 plays a role in smoothing when x and y are close or even the same, and ensures the correct operation.
When P is in the basic form, the numerator of the objective function can represent the inverse of the profit of the producer (the minimum value of the objective function is obtained in the optimization), and the denominator T (Ot)j，Eti) To ensure the freshness of the product (the later the sale time, the less profit).
Then based on the above basic form of function, the corresponding modification can be made to implement different rules:
for example:
1) when product freshness is emphasized, i.e. it is desired that the product be sold as soon as possible after the product is sold, the T (x, y) function can be modified to increase its sensitivity to time differences, e.g. T (x, y) ═ x-y)2+0.5；
2) When the matching with less supply quantity is expected to be reduced, the matching result can be more sparse by increasing the sigma value;
3) in a more general expansion, a subfunction can be added or deleted, for example, when the product transportation distance between a producer and a demander is considered and the distance between the two matching parties is expected to be as close as possible, a distance function can be added to an objective function, for example:
and (3) transverse expansion: when the server side interacts with the client side, a Session (Session) is not used, because if the server side using the Session needs to record a Session Identifier (Session Identifier) in a memory for each client side, which is disadvantageous to multi-machine horizontal extension, because it is difficult to keep the Session identifiers of the same client side consistent across server machines. Therefore, in order to enable the server to simply expand the overall capacity of the system through horizontal expansion when the data size is increased, the system adopts a Token (Token) -based Stateless application program interface (Stateless API) Authentication policy (Authentication Strategy), the Authentication policy stores data (such as user id) of an insensitive session in a client through encoding, and adds a signature of the server on the front data at the back for Authentication and anti-counterfeiting, the server verifies whether the Token is issued by a trusted server after receiving a request of the front end every time, if the Token is trusted, the request is processed, otherwise, the request is discarded.
Designing a resource-based interface: in order to simplify the interaction complexity between a server side and a client side of a data collection platform, an application program interface for interaction between the server side and the client side adopts a Resource-based interface principle, provides interfaces for creating, acquiring, retrieving, updating, deleting and the like for each Resource existing in a software model, and then controls the visibility and the usable operation of a user on Resource sets or single Resource entity fields according to the user authority of requesting Resource operation.
Those not described in detail in this specification are within the skill of the art.
Claims (5)
1. An agricultural product production and marketing docking system, comprising: a client and a server;
the server side is used for providing the required data for the client side and receiving and storing the data input by the client side;
the client comprises a producer information input module, a demand information input module and an administrator module;
the producer information input module: the production direction database is used for inputting production information orders and providing data support;
the demander information input module is used for: the system is used for inputting a demand information order into a demand direction database and setting a demand direction authority;
the administrator module includes: the device comprises a matching result confirming module, a late selling early warning module and a statistical data display module;
the administrator module is used for managing the matching result confirmation module, the late selling early warning module and the statistical data display module by an administrator;
the matching result confirmation module: the matching scheme is used for presenting the matching scheme provided by the order matching module and providing the support of the confirmation or cancellation operation of the matching scheme; after the matching scheme is confirmed, establishing an actual trading relation for the matching parties, updating database information, and finally presenting final docking information to the matching parties;
the lost-sales early warning module: the system is used for judging the production party delay risk according to the set marketing end time; the method comprises the steps of warning a producer with a delay risk to an administrator, and providing a solution for the producer;
the statistical data display module: the data screening is carried out according to the production area and the production type field, and the production general condition is counted and known; the server side comprises an order matching module and a database;
the order matching module: the system is used for efficiently and intelligently providing diversified matching schemes for producers and demanders aiming at various scenes and based on different rules;
the database is used for storing information input by the information input module of the demand side and the information input module of the production side;
the client supports a multi-terminal input mode, the terminal comprises a PC (personal computer) terminal, and a producer who does not meet the self-input condition completes input on the PC terminal through the assistance of an administrator;
the demander authority includes:
before order confirmation, a demand side can only check the product information of a production side, but cannot check the main body information and the guaranteed price in the registration of the production side; the main body information comprises a main body category, a main body contact person name and a main body contact person contact way; the subject categories comprise a large household, a cooperative society and an enterprise;
after the order is confirmed, the demand side can check the main body information and the guaranteed price of the corresponding production side;
wherein the order matching module performs matching based on a convex optimization algorithm under constraint conditions,
the convex optimization algorithm efficiently realizes the matching of different rules by modifying a target function, including adding and deleting sub-functions, modifying the form of the sub-functions and adjusting parameters;
the convex optimization algorithm based on the constraint condition is specifically realized as follows:
the objective function is:
wherein: m is the number of items of product information, N is the order number, Ot is the scheduled time of the order, Et is the product sale time, Op is the order price, Ep is the product low price, xijProviding a product quantity for a product i to an order j, wherein sigma is a parameter for controlling the sparsity of supply, i is the product, and j is the order;
t is a time difference function and has the basic form:
T(x，y)＝x-y+0.5，
p is a price difference function and has the basic form:
P(x，y)＝x-y+0.5
wherein, 0.5 plays a role in smoothing and ensuring correct operation when x and y are close or even the same;
when P is in the basic form, the numerator of the objective function represents the inverse of the producer's profit, the denominator T (Ot)j，Eti) Indicating the freshness of the product;
when the product is sold after the beginning, the T (x, y) function is modified to improve the sensitivity to the time difference:
T(x，y)＝(x-y)2+0.5
when the matching with a small supply amount is reduced, the matching result is thinned by increasing the sigma value.
2. The agricultural product production and marketing docking system of claim 1, wherein the plurality of scenarios of the order matching module comprise:
pairing: one producer order corresponds to one demander order;
combining orders: a producer order supplies a plurality of requirers orders;
combined supply: one demand order is provided by multiple producer orders together.
3. The agricultural product production and marketing docking system of claim 1, wherein the administrator module the administrators are classified into different levels and different privileges are set for the administrators of different levels.
4. A produce-marketing docking system according to claim 3 wherein said administrator is rated as: super manager, second manager, third manager, fourth manager;
the different permissions are: the super manager has the authority to add, delete, modify and view all data, the super manager also has the authority to modify and delete the information after order confirmation, the second-level manager has the authority to add, modify and view the data of the towns and towns, the third-level manager has the authority to add, modify and view the street data, and the fourth-level manager has the authority to add, modify and view the data added by the manager.
5. The produce marketing docking system of claim 1, wherein a distance function L (ol) is added to the objective function based on a convex optimization algorithm under constraint conditions when considering the product shipping distance between the producer and the demanderj，Eli)；
The distance function L (Ol)j，Eli) For calculating the distance required to transport a product from a delivery address specified by a producer to a delivery address specified by a demander:
wherein Ol is a delivery address designated by a demand side, and El is a delivery address designated by a production side.
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