Method and System for Detecting and Recognizing Floating Garbage Moving Targets on Water Surface with Big Data Based on Blockchain Technology

Table 1

Comparison of the characteristics of the three forms of blockchain.

Comparison item	Public chain	Private chain	Alliance chain
Degree of centralization	Decentralized	Centralization	Polycentric
Participant	Everyone	Central controller designated member	Preset members with specified characteristics
Bookkeeper	All participants	Customize	Negotiated
Trust mechanism	Proof of work	Self-endorsement	Consensus mechanism
Advantage	Easy application deployment, any user can access, the application is easy to deploy	Low network energy consumption, the rules are easy to modify, the transaction volume and transaction speed are unlimited	Easy to set control authority, has a very high scalability
Insufficient	Most restricted transactions	Limited access node, can’t solve the trust problem	Does not fully solve the trust problem