Bidding and tendering system based on block chain

Abstract

The invention provides a bidding and tendering system based on a block chain, and the system comprises a block chain network which comprises a main chain network and at least one alliance chain connected to the main chain network; a bidding and tendering service platform which runs in each alliance chain and is used for a bidding party to publish a bidding file and generate a corresponding hash value to be stored in the block chain network; each supplier generates a bidding material after obtaining bidding qualification and stores the bidding material to the block chain network; the expert gives a subjective score according to the bidding material and stores the subjective score to the block chain network, and obtains a comprehensive score of the supplier according to the bidding material and a scoring rule pre-configured in the block chain network in combination with subjective score processing and stores the comprehensive score to the block chain network; and the supplier with the highest comprehensive score is taken as a bid-winning party to generate a corresponding bid-winning notice, the bid-winning party and the bidding party are enabled to sign a purchase contract online, and the bid-winning notice and the purchase contract are stored to a block chain network. The beneficial effects are that online automatic bidding and tendering are realized, and benefits of bidders are effectively guaranteed.

Description

technical field [0001] The present invention relates to the technical field of block chain applications, in particular to a block chain-based bidding system. Background technique [0002] Tendering and bidding is a form of comprehensive economic responsibility system that promotes competition in the field of capital construction. With the rapid development of the Internet, bidding activities are gradually electronicized. Electronic bidding makes the communication process more convenient, and the entire bidding work is on the premise of reducing costs. The efficiency has also been significantly improved. The bidding process of the existing electronic bidding platform mainly includes: the tenderer needs to register and log in to the electronic bidding platform to enter basic information for review. After obtaining the bidding qualification, the tenderer registers the bidding project, and can start to prepare the bidding documents. After the preparation is completed, the biddi...

AI Technical Summary

Problems solved by technology

[0003] Although the existing electronic bidding platform can realize electronic bidding, there are the following problems: First, the supplier management workload is heavy and the efficiency is low: since the existing supplier qualification information is directly provided by the supplier, there are The possibility of falsified supplier information may lead to unscrupulous suppliers winning bids and entering the network

During the bid evaluation process, evaluation experts need to verify a series of paper supporting materials provided by suppliers one by one, and each batch of projects needs to be verified. It is difficult to share cross-batch information, and the verification workload is heavy. Data between different network provinces It cannot be shared, and it is difficult to manually identify false bidding information

Second, the bidding process is complicated, time-consuming and labor-intensive: For each bidding project, suppliers need to go through a series of processes such as purchasing bidding documents, making bidding documents, signing and stamping, on-site bidding, and waiting for the opening of bids, which requires a lot of manpower, Material resources, and it is difficult to guarantee the quality of bidding documents

In the production of bidding documents, the basic information of suppliers for different projects needs to be filled repeatedly, which wastes the time of suppliers and increases the workload of experts; and each project needs to make a CD / U disk of bidding documents

In the delivery process of bidding documents, suppliers need to go to the bidding hall in a concentrated manner before the opening of bids, which can easily lead to confusion at the bidding site, requiring a large number of staff to maintain order on the site; staff are faced with a lot of manual work such as classifying, handling, and dismantling bid documents quantity

If remote bid evaluation is required, it also involves remote handling of the bidding document CD / U disk, which not only consumes manpower, but may also cause damage to the bidding documents

Third, bid evaluation is highly subjective and has different evaluation standards: the existing bid evaluation process mostly relies on the experience, knowledge structure, and technical level of evaluation experts, which is prone to problems of large individual differences and strong subjectivity

Moreover, the current bid evaluation results are mainly based on experts’ on-site evaluation scores, ignoring the evaluation of suppliers’ daily performance, such as the supplier’s past service quality, which is not conducive to the formation of a virtuous circle of supplier management that promotes quality through inspection

Fourth, there is a certain lag in the management of the material supply chain: after the bidding is completed, the bidder and the tenderee are required to sign a contract. There is a certain time difference between the issuance of the book and the signing of the contract, and there is a certain lag in the management of the material supply chain

Fifth, in the bidding review process, there is a lack of risk warning for suppliers: the supplier's past performance behavior is only considered as one of the scoring items in the business scoring process

, lack of evaluation of information such as contract performance capabilities, product quality performance, and after-sales service performance, and the neglect of these information has led to the inability to form a closed-loop management of procurement, increasing the risk of successful bidders

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