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

The present invention is based on the use of a battery system (BS), especially the lithium ion battery system, which improves the safety device (SV).Among them, the safety device (BV) is applicable to the electrical crossing of at least one battery device (BV). Among them, the safety device (SV) has contact components (KE), and the contact element can occupy the first position (P1) and the second position (P2), where the contact element (KE) is located in the first position (P1), at least one battery device (BV) is connected in series, and when) When in the second position (P2), at least one battery device (BV) was called by electricity. Among them, the safety device (SV) had a callback device (RV) in orderThe status parameter of at least one battery device (BV) is moved from the second position (P2) to the first position (P1).

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.

The invention relates to a frequency converter drive protecting circuit which comprises a sampling unit, a comparing unit and a protection outputting unit, wherein the input end of the sampling unit is connected to a direct current bus of a frequency converter and is used for converting a current value of the direct current bus into a voltage value for outputting; the input end of the comparing unit is connected to the output end of the sampling unit and used for outputting a switching-on signal when the voltage value of the input end is more than a first threshold; and the protection outputting unit is used for outputting a protection signal according to the switching-on signal output by the comparing unit. The invention realizes the monitoring on the current of the direct current bus of the frequency converter by the sampling and the comparison and has lower cost. In addition, the circuit also has perfect protection function.

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 relates to a method for preparing broad spectrum antihumanglobulin cards. Six micro-column gel tubes are arranged on the cards, and the six micro-column gel tubes are gel tubes containing an antibody for resisting IgG+C3d. The method comprises the following processes of preparation of a gel suspension medium, preparation of a gel, selection of the antibody, and preparation and sub-package of the gel. The gel suspension medium comprises the reagents of (5.5-6.5)*10-4g / ml methyl- p-hydroxybenzoate, (1.0-1.5)*10-4g / ml propyl p-hydroxybenzoate, (1.6-1.9)*10-2g / ml glycine, (1.7-1.9)*10-3g / ml sodium chloride, (2.1-2.4)*10-4g / ml monopotassium phosphate, (4.6-4.8)*10-4g / ml disodium hydrogen phosphate and less than or equal to 2 percent of bovine serum albumin. The reagents are dissolved by using distilled water; and the pH value is adjusted into 6.6-6.8. The broad spectrum antihumanglobulin cards prepared by the method have the advantages of high sensitivity, favorable specificity and stable quality.

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.