Abstract: Embodiments of the present specification provide a data transmission method and apparatus, where the data processing method includes: sending a first preset number of sub data packets to a receiving end; setting data information of a first sub data packet in initial sending status information to obtain first sending status information, and constructing an association relationship between the first sending status information and a corresponding field in a sending information maintenance table; in a case that confirmation information returned by the receiving end is received, determining a second sub data packet corresponding to the confirmation information, and determining second sending status information corresponding to the second sub data packet, and removing an association relationship between the second sending status information and a corresponding field in the sending information maintenance table. In this way a reliability of data transmission may be improved.

Abstract: Embodiments of the present specification provide a data transmission method and apparatus, where the data processing method includes: sending a first preset number of sub data packets to a receiving end; setting data information of a first sub data packet in initial sending status information to obtain first sending status information, and constructing an association relationship between the first sending status information and a corresponding field in a sending information maintenance table; in a case that confirmation information returned by the receiving end is received, determining a second sub data packet corresponding to the confirmation information, and determining second sending status information corresponding to the second sub data packet, and removing an association relationship between the second sending status information and a corresponding field in the sending information maintenance table. In this way a reliability of data transmission may be improved.

Abstract: Embodiments of the present specification provide a data transmission method and apparatus, where the data processing method includes: sending a first preset number of sub data packets to a receiving end; setting data information of a first sub data packet in initial sending status information to obtain first sending status information, and constructing an association relationship between the first sending status information and a corresponding field in a sending information maintenance table; in a case that confirmation information returned by the receiving end is received, determining a second sub data packet corresponding to the confirmation information, and determining second sending status information corresponding to the second sub data packet, and removing an association relationship between the second sending status information and a corresponding field in the sending information maintenance table. In this way a reliability of data transmission may be improved.

Abstract: An improved hoist ring for lifting of equipment or heavy loads adapted for engagement thereto. The device features an attachment end which allows for serpentine three point engagement of the hoist ring to a tether such as a looped lift cable or rope. The engagement eliminates the need to thread the tether through an eye or disconnect the two downward leads of the tether from each other or the lift. Shoulders formed from the lower surface of a “T” shaped engagement member also prevent the lifting cable from sliding off the ends.