Abstract: The present disclosure provides a cryptocurrency securing system and a cryptocurrency securing method thereof. The system receives a cryptocurrency transaction information from a user device, and determines whether a policy data corresponding to the cryptocurrency transaction information is legal. When the policy data corresponding to the cryptocurrency transaction information is legal, the system derives a cryptocurrency private key information via a personal identification number of the user device. The system then encrypts the cryptocurrency transaction information via the cryptocurrency private key information for deriving an encrypted cryptocurrency transaction information, and broadcasts the encrypted cryptocurrency transaction information to a blockchain network.

Abstract: The present disclosure provides methods and apparatuses for determining a fatigue index. A method of determining a fatigue index may include receiving physiological signals, generating a plurality of parameters of heart rate variability based on the physiological signals, and determining the fatigue index based on the plurality of parameters of heart rate variability.

Abstract: A collaborative transmission method and a transmission device based on UDP (User Datagram Protocol) and TCP (Transmission Control Protocol) connections are provided. The collaborative transmission method comprises: calculating a first rate and obtaining a first parameter, wherein the first rate is a rate using TCP to transmit packets and the first parameter is associated with the variation degree of the first rate; after obtaining the first rate, calculating a number of packets to be sent according to a target bit rate, the first parameter, the first rate, and a packet size, wherein the number of packets to be sent is the number of packets expected to be transmitted via UDP; and determining to use either UDP or TCP to send the packet according to a transmission flag and updating the number of packets to be sent when the packet number is not zero.

Abstract: A collaborative transmission method and a transmission device based on UDP (User Datagram Protocol) and TCP (Transmission Control Protocol) connections are provided. The collaborative transmission method comprises: calculating a first rate and obtaining a first parameter, wherein the first rate is a rate using TCP to transmit packets and the first parameter is associated with the variation degree of the first rate; after obtaining the first rate, calculating a number of packets to be sent according to a target bit rate, the first parameter, the first rate, and a packet size, wherein the number of packets to be sent is the number of packets expected to be transmitted via UDP; and determining to use either UDP or TCP to send the packet according to a transmission flag and updating the number of packets to be sent when the packet number is not zero.