3results about How to "Achieve rapidity" patented technology

The application discloses a navigation positioning method based on an interactive multi-model rapid smooth switching framework. The application firstly initializes an inertial navigation system, three sub-filter models and benchmark parameters of the interactive multi-model; then, based on innovation squared sum (ISR) and chi-square test, the original likelihood value is robustly modified to inhibit the interference of abnormal values on the likelihood value; then, based on sliding window trend analysis, two-stage determination is realized, the first stage strengthens the continuous optimal model, the second stage switches the failure model and selects a trend-qualified alternative model; then, according to the determination result, a transition probability correction coefficient is calculated to dynamically adjust a transition probability matrix (TPM) of the interactive multi-model; finally, the navigation result is output through multi-model weighted fusion, and combined navigation real-time iteration is realized, so as to solve the problems of traditional interactive multi-model, such as complex noise, model mismatch scene, likelihood value distortion, model switching lag and poor adaptability of the transition probability matrix.

The invention discloses a low-voltage distribution network intelligent fault positioning and recovery system based on village and town resource adaptation, and relates to the technical field of alternating-current distribution networks. The at least one boundary layer control master station is deployed in a power distribution area of a village and town and is in communication connection with the cloud layer master station; the plurality of end-layer intelligent terminals are deployed at distribution line nodes and distributed resource sides and are in communication connection with the belonging side-layer control master stations; wherein the boundary layer control master station at least comprises a resource portrait modeling module, a local plan library management module, a communication state monitoring module and a fault intelligent positioning and autonomous recovery decision engine. According to the system, through a cloud-side-end off-line autonomous architecture, the problem that a centralized system breaks down due to communication interruption of villages and towns is solved. When the communication is interrupted, the local side layer master station can complete fault processing and power supply recovery according to a pre-stored plan and real-time data, the communication vulnerability is converted into a tolerable working condition from a fatal weak point, and automatic rapid power recovery under the condition of unreliable communication is realized.