37results about How to "Failure will not" patented technology

The invention discloses an Ethernet ring network link failure recovery method, an Ethernet ring network and node equipment, wherein the method comprises the steps: increasing a self-failure identification value by a determined step value when main node equipment receives a failure message of a link which is not directly connected to the equipment; reducing the self-failure identification value bythe step value when the main node equipment receives a failure recovery message of the link which is not directly connected to the equipment, and judging whether the failure identification value which is reduced by the step value is greater than a determined failure identification initial value or not; if so, doing not block a self slave port; and otherwise blocking the self slave port. The problem of communication interruption caused by overlong recovery and convergence time of the Ethernet ring network is solved.

An optical bus. Optical sub-assemblies are used to connect lengths of optical fiber to form a single optical fiber that is a bus. A master transceiver may be connected to one end of the fiber and nodes can be connected to the optical sub-assemblies. Each optical sub-assembly includes a center fiber with a mirror that enables each connector to reflect optical signals out of the fiber and that enables a node to launch optical signals on the optical bus. The optical bus can also be connected with a second transceiver that may be used to deliver optical power to the attached nodes. Some nodes include two optical subassemblies to enable bidirectional communication on the optical bus.

The invention discloses an annular pipe sealing ring used for ultralow-temperature dynamic sealing. The annular pipe sealing ring comprises a pipe and a group of air inlet holes, wherein the pipe is provided with a hollow cavity, and the air inlet holes are formed in the pipe. The pipe is annular, and the hollow cavity of the pipe is internally provided with a supporting piece. The sealing ring with the design can be made of a relatively flexible low-temperature-resistant material, and the sealing effect is ensured; meanwhile, the annular pipe sealing ring not only can be used for static sealing and sliding sealing under an ultralow-temperature working condition but also can be used for dynamic sealing under the ultralow-temperature working condition; when no fluid pressure exists in the inner cavity, the thin-wall pipe is supported through stable supporting force provided by the supporting piece inside the inner cavity, and crushing and failure of the pipe are prevented; when high-pressure fluid enters the inner cavity of the pipe and the pressure difference is produced, the thin-wall pipe has enough deformation capability, can be closely attached to the metal surface and is good in sealing effect; and in addition, when the two sealing end surfaces are relatively separated, the sealing ring has enough strength to bear the pressure difference alone, and breaking caused by pulling, bursting and failure are avoided.