2results about How to "Reduce switching operations" patented technology

This invention provides a method and system for intelligent handover of 2M unframed dual-path protection based on redundancy check, relating to the field of communication technology. The method includes acquiring and aligning dual 2M unframed bitstreams, generating check results using cyclic redundancy check, statistically analyzing error feature vectors within a sliding time window, constructing a link quality trajectory, extracting quality degradation warning signals, constructing a phased handover strategy based on the warning signals, and determining the handover timing sequence and executing link handover using a neural network evaluator. This achieves adaptive optimization of the handover strategy, improving the intelligence and reliability of link handover.

The invention provides a switchable negative pressure leading-in sheath for a flexible endoscope operation, and relates to the technical field of medical instruments, and the switchable negative pressure leading-in sheath comprises a sheath body, a side arm negative pressure connector and a plugging cap assembly. A main channel through which the flexible lens passes and fluid is discharged is formed in the sheath body, and the sheath body comprises a straight sheath section and a head-end bendable section; the tail end side arm negative pressure interface is communicated with the main channel and is connected with a negative pressure source; the plugging cap assembly is arranged at the tail end straight arm, and a through hole communicated with the main channel is formed in the plugging cap assembly and used for adjusting the effective negative pressure of the main channel, so that the negative pressure adjusting position is transferred to the tail end straight arm from the tail end side arm. The through hole can be switched among a low-resistance passing state, a sealing pressurization state and a ventilation pressure relief state, wherein the low-resistance passing state is a main operation state. In addition, a side through pipe is arranged in the side wall of the straight sheath section and used for introducing an external medium into the main channel under the action of negative pressure, so that passive circulation backflow is formed, and the gravel chip discharging condition is improved.