Electric power material special ticket checking-free billing system and method based on block chain

Abstract

The invention provides an electric power material special ticket checking-free invoicing system and method based on a block chain, and the system comprises a settlement block chain which is configuredto receive and store a purchasing order and receiving full-amount information of electric power materials, and transmits and shares the information needed for issuing a special ticket to a special ticket cloud platform according to the admission authority of an invoicing requester; a special ticket cloud platform configured to automatically call special ticket issuing required information and embed the special ticket issuing required information into the supplier special ticket issuing interface when the purchase order number is received so as to complete generation and issuing of the electronic special ticket; and a tax block chain configured to receive the electronic special ticket of the special ticket cloud platform and store the electronic special ticket to a tax system electronic bottom account database; according to the invention, a third-party authentication and transmission channel with reliable mutual trust and tamper resistance of the special ticket information is established between the special ticket service and the external network through the settlement block chain, and the problems of authenticity, reliability, legality and effectiveness of special ticket information transmission are solved.

Description

technical field [0001] The present disclosure relates to the technical field of electric power material management and control, and in particular to a blockchain-based system and method for checking and issuing special invoices for electric power materials. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] The supplier service hall of the power company is mainly responsible for the contract signing, settlement and related consulting services for centralized procurement of materials. When handling the settlement of the payment for goods, it is necessary to provide the arrival acceptance form and the full value-added tax invoice as the payment basis, mainly including settlement advance payment, In the four stages of settlement of payment for goods, settlement of delivery payment and settlement of quality assurance payment, it is necessary to...

AI Technical Summary

Problems solved by technology

[0006] (1) The existing special ticket intelligent settlement platform can only realize the upload of the paper special ticket image, that is, the supplier needs to log in to the supplier's online service hall and manually check the stored national tax system special ticket number, then enter the purchase order number, Upload the image of the special ticket, and then the platform can establish the association between the image of the special ticket, the information of the special ticket in the electronic account database of the national tax system, and the purchase order of the ERP system, and store the electronic image of the special ticket under the corresponding order in the ERP system

[0007] (2) The existing special ticket images can only be used for special ticket inspection and image storage, and suppliers still need to submit paper special tickets as the basis for financial voucher production, financial payment, archiving, and auditing

[0008] (3) Due to the disconnection between the ERP system of the power company (purchase order, receipt and storage information) and the external supplier's billing system, accurate transmission and information sharing of purchase orders and receipt and storage information cannot be realized. Therefore, the supplier Unable to automatically and accurately issue special tickets

[0009] (4) Suppliers can query and download the contract and receipt information through ECP2.0 (the new generation e-commerce platform of power grid companies), and suppliers can issue special invoices based on the contract and receipt information; or through the supplier's online service hall, etc. The system manually checks the ERP purchase order and receipt information, and issues the corresponding special ticket. However, due to the subjective factors of the supplier, the content of the invoice cannot be guaranteed to be 100% correct. Even if the content of the special ticket is 100% correct, the information on the special ticket cannot be guaranteed. There are factors such as human tampering, that is, it is not credible. Therefore, it is still necessary to check the material name, specification model, quantity of goods, unit, seller and buyer tax number, and the remarks column (order number or supply list) of the special ticket. No.) and other invoicing information will be pre-checked by human eyes. If the supplier’s invoicing information is wrong or the invoicing is not standardized, the face of the ticket is not clean, the printing is not standardized, there are manual alterations, defacements or wrong lines, etc., you need to notify Suppliers re-standardize and issue special tickets

[0010] (5) The existing special ticket inspection method is to compare the special ticket information with the purchase order corresponding to the contract, the receipt and warehousing information, and check whether the information is consistent; Yes, it seems incompatible with the digital society. Even if the system automatically compares and reviews the system in the future, the comparison of the list of contract goods line items will only remain an inaccurate comparison; for example, when there are too many specifications and models in a certain line item in the contract Suppliers generally only intercept a continuous section of the specification model and issue it in the special ticket; (if the specification model in the contract is "AC500KV, general purpose, angle steel, Q420, conventional tower", only need to fill in "AC500KV" or "angle steel, Q420" Just do not fill in "AC500KV, Q420" or "General, Conventional Tower"); there are many line items, and the service personnel in the lobby need to spend a lot of time to compare the details of the special ticket line by line, and it is easy to read the wrong line or review error occurred

Images