Abstract: The invention discloses a copyright protection and royalty distribution method based on a NFT and its associated smart contracts. The smart contracts govern the initial minting, derivative minting, and trading of the NFT as well as the royalty distributions of every trades in the lifetime of the NFT, This method uses blockchain and NFT technology to manage and protect the copyright of digital music. The ownership and trade transaction records of the NFT are verified through blockchain technology and the distribution of digital music royalties are automated via smart contracts. According to the method of the present invention, the copyright of digital music can be made more transparent and secure, the distribution of royalties can be more just and efficient, and copyright infringement and improper resale can be avoided.

Abstract: An automatic cleaning control system of pet drinking device based on Internet-of-Things operates by providing the cleaning devices, the cleaning monitoring devices and the cleaning processing devices in the feeding dish of the pet drinking device, and collecting images of the surface of the feeding dish in real time with a cleaning monitoring terminal provided on the feeding dish of the pet drinking device, analyzing the cleaning index corresponding to the feeding dish based on collected images of the surface of the feeding dish, and conducting self-cleaning of the feeding dish, intelligent and automatic cleaning of the feeding dish in the pet drinking device is realized, compared with manual cleaning.

Abstract: A solar pet water dispenser, comprising a solar cell assembly, a water storage assembly, a water pumping assembly, a temperature control assembly, a living body sensor, a first control assembly and an induction switch, wherein the water storage assembly is provided with a water storage tank and a water holding lid which are hinged connected with the water storage tank; the water pumping assembly is provided with a first water inlet and a first water outlet, the first water inlet is connected with the water storage cavity, the first water outlet is connected with the water storage lid; the living body sensor is arranged on the water storage tank; at an input end of the first control assembly is connected the solar cell assembly, at an output end thereof is connected the water pumping assembly and the temperature control assembly, and at a control end thereof the living body sensor.

Abstract: A solar pet water dispenser, comprising a solar cell assembly, a water storage assembly, a water pumping assembly, a temperature control assembly, a living body sensor, a first control assembly and an induction switch, wherein the water storage assembly is provided with a water storage tank and a water holding lid which are hinged connected with the water storage tank; the water pumping assembly is provided with a first water inlet and a first water outlet, the first water inlet is connected with the water storage cavity, the first water outlet is connected with the water storage lid; the living body sensor is arranged on the water storage tank; at an input end of the first control assembly is connected the solar cell assembly, at an output end thereof is connected the water pumping assembly and the temperature control assembly, and at a control end thereof the living body sensor.