| CPC G06Q 10/30 (2013.01) [G06Q 50/40 (2024.01)] | 8 Claims |
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1. An electronic consignment note management system for marine plastic debris based on blockchain technology, comprising:
a cloud management platform deployed on a central node of a blockchain and
service sites deployed on other nodes of the blockchain comprising a marine debris collection terminal, a marine debris transfer terminal, a marine debris storage terminal, a marine debris transportation terminal and a marine debris disposal terminal, wherein the marine debris collection terminal, the marine debris transfer terminal and the marine debris storage terminal issue marine debris transshipment order requests to a cloud management platform through a pre-compiled smart contract;
the cloud management platform deployed on a central node of a blockchain and configured to supervise a marine debris handover process between the service sites, and verify an electronic identity of a service site that issues a marine debris transshipment order request by using a blacklist and whitelist mechanism, wherein the blacklist and whitelist mechanism comprises:
when the electronic identity exceeds a validity period, retrieving, by the cloud management platform, corresponding service site data, verifying the service site by using a credit evaluation model, and updating an electronic identity status and the validity period according to a verification result;
when the electronic identity is on a blacklist, rejecting, by the cloud management platform, the marine debris transshipment order request of the service site;
when the electronic identity is on a whitelist, broadcasting, by the cloud management platform, the marine debris transshipment order request of the service site to the marine debris transportation terminal; receiving, by the marine debris transportation terminal, a control instruction from the cloud management platform, obtaining, by the cloud management platform, a matching transshipment vehicle according to a transshipment vehicle matching algorithm, and transporting, by the transshipment vehicle, marine debris from the marine debris collection terminal to the marine debris transfer terminal or the marine debris storage terminal, from the marine debris transfer terminal to the marine debris storage terminal or the marine debris disposal terminal, or from the marine debris storage terminal to the marine debris disposal terminal; and after the transshipment vehicle arrives at the marine debris disposal terminal, verifying, by the marine debris disposal terminal, an electronic consignment note and vehicle information of the marine debris storage terminal, and receiving the marine debris after the verification succeeds; generating, by the cloud management platform, an electronic consignment note, and filing a completion progress of all transshipment orders corresponding to the marine debris to the marine debris collection terminal, thereby ensuring a complete evidence chain throughout an debris collection terminal, thereby ensuring a complete evidence chain throughout an entire process of collecting, transporting and disposing of the marine debris, making the data traceable, and facilitating comprehensive supervision of the marine debris;
wherein the credit evaluation model is expressed as I=[C,G,Z,H], where C represents a number of illegal operations by an operator, G represents an abnormal value of a collection amount of the marine plastic debris, Z represents a number of the marine debris transshipment order requests, and H represents a transshipment amount; when any output result of the credit evaluation model is abnormal, the cloud management platform blacklists the electronic identity of the service site that issues the marine debris transshipment order request; when all output results of the credit evaluation model are normal, the cloud management platform whitelists the electronic identity of the service site that issues the marine debris transshipment order request; and electronic identity information has a validity period, and the electronic identity information exceeding the validity period is removed from the blacklist and the whitelist;
wherein determining, by the cloud management platform, the abnormal value of the collection amount of the marine plastic debris comprises:
acquiring historical sample data of the service sites in three sections of off season, normal season and peak season, and calculating predicted weight values of the historical sample data in different sections;
calculating a correction factor according to the predicted weight values of the historical sample data and actual reported values of the service site;
calculating a weight comparison value srei of each historical sample data according to the correction factor:
 where δi represents a correction factor of an ith historical sample data, t represents a design matrix comprising the historical sample data, and x2 represents a mean square error of the historical sample data; and t′ represents a transport of t; and
when calculating the weight comparison value, calculating weight comparison values w={srei1, srei2, srei3} in different sections by using the historical sample data of the off season, the normal season and the peak season, respectively, where srei1 represents a peak season weight comparison value, srei2 represents a normal season weight comparison value and srei3 represents an off season weight comparison value; and
determining whether an absolute value of the weight comparison value in an actual section is greater than a threshold, wherein when the absolute value of the weight comparison value in the actual section is greater than the threshold, weight data of the marine debris in the service site is abnormal; and otherwise, the weight data of the marine debris in the service site is normal.
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