2results about How to "Reduce processing overhead" patented technology

This invention belongs to the field of communication network and data scheduling technology, and discloses a target-driven intelligent data scheduling method and system. The method includes: Step 1, when the front-end device detects a high-value target, it inserts a priority transmission marker into the data stream. After the data plane network node identifies the marker, it dynamically generates a high-priority forwarding rule locally and reports the information to the SDN controller in real time; Step 2, the SDN controller performs target matching and path management based on the reported information. When the same target moves or reappears, it performs priority retention or release operations on the old path. This invention realizes closed-loop scheduling with data plane autonomously triggering priority promotion and control plane intelligently managing priority callbacks. It eliminates the need for the SDN controller to pre-issue flow tables, reduces the control plane load, avoids bandwidth waste caused by fixed QoS policies, and ensures continuous priority transmission of video streams when targets move across devices. It is suitable for scenarios such as security monitoring.

This application provides a PLC instruction-level two-factor authentication system and method based on a hardware root of trust. It includes: a session authentication module for performing session-level two-factor authentication based on device authentication information corresponding to the user password factor and the client device's device identity key; a key derivation module for deriving a token key and an instruction key based on the session master key; an instruction encryption module for performing authentication encryption processing on control instructions using the instruction key, and generating instruction ciphertext and an authentication tag; and an instruction execution module for decrypting the token ciphertext using the token key and verifying the device identifier, validity period information, and instruction permission information of the decrypted security token. If the verification passes, the instruction ciphertext is decrypted to obtain the control instruction and executed. This application can improve the strength of instruction-level authentication and authorization verification, enhance cross-layer identity consistency assurance capabilities, and reduce the processing overhead of instruction security verification.