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5383results about How to "Flexible configuration" patented technology

Cluster distributed type lock management method based on storage area network SAN

A distributed lock management method based on a storage area network SAN belongs to the network storage field. The distributed lock management method is characterized in that all node servers of a cluster form multiple master-slave mode sub-clusters, namely, Quorum; one node in the sub-clusters is used as the master server and the other nodes are slave servers; the multiple sub-clusters include one State Quorum and a plurality of Lock Quorums, which are respectively in charge of the management of the birth-death state of the system nodes and the management of a read-write visit lock in a name space; the State Quorum is formed by all the nodes and the Lock Quorum is formed by nodes of arbitrary number, the sizes and the structures of the State Quorum and the Lock Quorum can be flexibly configured by the client; both the State Quorum and the Lock Quorum follow the sub-cluster detection protocol, and all the nodes can select the only master server in the Quorum through the protocol to configure a normal Quorum; all the Lock Quorums respectively manages the different sections of the name space, are not overlapped and are respectively vested with different weights according to different service capacities; all the Lock Quorums independently count the load conditions, therefore when the lock management task charged by one Lock Quorum is too heavy, the load balancing process is triggered to distribute part task of the Lock Quorum to the other Lock Quorums. The invention is easy for flexible configuration and has good properties, high extensibility and high reliability.
Owner:TSINGHUA UNIV

Broadband wireless signal covering network based on passive optical network structure

The invention relates to a broadband wireless signal covering network based on a passive optical network structure. The network comprises a first fiber power divider / wave combiner, a plurality of user terminal units, an optical wavelength multiplexing / de-multiplexing device, a second fiber power divider / wave combiner and a broadband photoreceiver, wherein the first fiber power divider / wave combiner allocates light carrier signals of a light emitter to a plurality of fiber power dividers; a plurality of the user terminal units correspondingly receive the light carrier signals of the fiber power dividers, emit the light carrier signals to air and receive user uplink RF signals through antennas; the optical wavelength multiplexing / de-multiplexing device collects user uplink optical signals of a plurality of the user terminal units and transmits the signals to the uplink direction; the second fiber power divider / wave combiner collects the user uplink optical signals and transmits the signals to the uplink direction; and the broadband photoreceiver converts the received multi-wavelength user uplink optical signals into multi-bandwidth broadband RF signals and sends the signals to upper layer equipment. The broadband wireless signal covering network solves the problem of realizing broadband wireless communication for large-scale indoor multiuser, strengthens the adaptability to the horizontal dynamic change of uplink optical signal power and can adapt to the functional requirement of various wireless communication systems.
Owner:GUANGXUN SCI & TECH WUHAN

CAN bus based controller network monitoring system and monitoring method

The invention discloses a CAN bus based controller network monitoring system and a monitoring method. The monitoring system consists of monitoring software, a monitoring microcomputer, CAN bus communication interface equipment and a monitored controller network. The monitoring software is operated on the monitoring microcomputer, and the monitoring microcomputer is connected with the monitored controller network by the CAN bus communication interface equipment. The monitoring software is of modular component structure consisting of a communication component, an application component, an application layer protocol network configuration database and a management component thereof, a message analytic component and a message encapsulation component. The system is compatible with the CAN bus communication interface equipment of different manufacturers and can configure the application layer protocol flexibly, count bus communication characteristics and analyze messages in a real-time manner during a monitoring process, display monitoring information in a real-time manner by drawing a signal graph, tracking signal data and a CAN message and counting bus communication characteristic parameters, and reproduce the whole monitoring process afterwards, which has excellent versatility.
Owner:阴晓峰
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