6results about How to "Fast self-healing" patented technology

This invention discloses a self-healing elastomer, belonging to the field of new materials technology. The invention utilizes a one-pot method to prepare the elastomer using hydroxyl-terminated prepolymers, isocyanates, chain extenders, metal ions, and crosslinking agents. The elastomer contains a rich multi-dynamic network of H bonds, metal coordination bonds, and disulfide bonds, resulting in a self-healing elastomer. This invention reduces the difficulty of preparation and improves the excellent properties of polyurethane elastomers, such as heat resistance and solvent resistance, through crosslinking. Simultaneously, it can achieve rapid self-healing at a low temperature of -10℃ and exhibits good mechanical properties.

The application relates to the technical field of cloud edge cooperation, in particular to a cloud edge cooperation management system for a control center. A preprocessing unit is used for generating a plurality of fault prototypes according to fault data of edge nodes and constructing a global fault library on a cloud node; a fault unit is used for setting an edge fault library and detecting fault prototypes; the fault unit comprises a node clustering module, which is used for dividing the edge nodes into a plurality of node clusters and deriving an edge fault library of each edge node from the global fault library; a preloading module is used for comparing running parameters of the fault prototypes with real-time running data, and a repair strategy is loaded when a similarity threshold is reached; an edge detection module is used for detecting the edge fault library after detecting a fault; a global detection module is used for bidirectional scanning detection of corresponding fault prototypes in the global fault library; and a repair unit is used for repairing. The problems of slow fault detection speed and high cloud resource occupation are solved.

This invention relates to the field of vehicle controller technology, specifically providing a heterogeneous multi-core vehicle controller and its core dumping method and electronic device. The method includes: in the event of a first fault in the real-time core of the heterogeneous multi-core system, directly writing critical fault data from the fault location into the reserved memory of Double Data Rate (DDR) memory, and marking it as valid data; the DDR memory remains powered on during the fault. After the fault data is written, a hot reset of the heterogeneous multi-core system is triggered; the DDR memory does not participate in the hot reset. After the hot reset, the application core of the heterogeneous multi-core system reads the critical fault data from the reserved memory of the DDR memory based on the valid data identifier, and persistently stores it in a non-volatile storage medium. This addresses the problem in related technologies where mass-produced vehicle controllers suffer from critical data loss during severe faults, leading to difficulties in reproduction and low efficiency in root cause analysis.

The application belongs to the field of organic materials, and particularly relates to a high-stretch, fast self-healing, high-thermal-conductivity and memoryable conductive polyurethane composite material as well as a preparation method and application thereof. The conductive polyurethane composite material is crosslinked by borate ester bonds, B-N coordination bonds and hydrogen bonds, and further introduces hydroxyl boron nitride, carbon nanotubes and graphene nanosheets to obtain the high-stretch, fast self-healing, high-thermal-conductivity and memoryable conductive polyurethane composite material. The raw materials are inexpensive and the operation is simple, and the obtained conductive polyurethane composite material has high-stretch, fast self-healing, high-thermal-conductivity and memoryability, and has potential application prospects in the fields of conductive films, sensors and wearable devices.

The invention belongs to the technical field of communication networks, and provides a communication loop fault detection method in a communication network, which comprises the following steps of: starting a link layer neighbor discovery protocol at each physical port of looped network node equipment, and acquiring an opposite-end neighbor equipment identifier and a port identifier which are actually connected with each port; progressive faults such as laser aging and emission light power degradation can be found in time by monitoring the sending light power value of the optical module and the bias current value of the laser in real time, the blind area that a traditional detection mechanism only depends on receiving light power monitoring is broken through, meanwhile, a secondary verification mechanism is arranged, and after degradation of the optical module is monitored, the detection accuracy is improved. According to the method, protection switching is not executed immediately, and whether the link has an actual bidirectional communication fault is further verified through the bidirectional connectivity detection protocol, so that misjudgment caused by short-time fluctuation of parameters of the optical module is effectively avoided, early warning of potential faults is realized, and the reliability of the optical module is improved. And the stability of the network when the optical module is degraded but the link can still perform normal communication is ensured.

The embodiment of the present application provides a time delay compensation method and a base station, comprising: an interface module sends a route refreshing message to a baseband unit device (BBU) in the case that the link establishment state of any radio remote unit (RRU) changes, wherein the route refreshing message carries an RRU identity; the BBU determines a target RRU based on the RRU identity; the BBU determines the reverse time delay of the target RRU based on a pre-stored time delay corresponding relationship and sends the reverse time delay to the target RRU; and the RRU performs time delay compensation based on the reverse time delay. The technical scheme of the present application determines the reverse time delay of the other direction through the pre-stored time delay corresponding relationship when a communication fault occurs in one direction, and performs reverse time delay compensation. The RRU link is re-established, the route is re-refreshed, the service parameters are re-allocated and re-sent, the time delay is re-measured and re-reported, and the like in the fault recovery process are avoided, the processing time consumed in the fault recovery is reduced, and the effect of fast self-healing is achieved.