Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

3results about How to "Improve calibration reliability" patented technology

Multi-source power grid data intelligent processing method and server

The invention relates to the technical field of data processing, and discloses an intelligent processing method for multi-source power grid data and a server, comprising: for an authorized power grid data reporting end, when receiving a power grid data reporting demand, the server reports the data to the data reporting hierarchy corresponding to the power grid data reporting end according to the data reporting hierarchy corresponding to the power grid data reporting end; extracting to-be-verified preset key power grid data from target power grid data uploaded by the power grid data reporting end and verifying the to-be-verified preset key power grid data; and when the verification is passed, the server determines the target power grid data as to-be-processed target power grid data, determines associated power grid data corresponding to the to-be-processed target power grid data based on multi-dimensional information corresponding to the to-be-processed target power grid data, and performs joint processing operation on the to-be-processed target power grid data and the associated power grid data corresponding to the to-be-processed target power grid data. And obtaining a power grid data joint processing result. Therefore, the accuracy of the power grid data reported by different power grid data reporting ends can be improved, and the processing accuracy of the multi-source power grid data can also be improved.
Owner:GUANGDONG POWER GRID CO LTD INFORMATION CENT

Method and device for on-line self-checking of gas-insulated switchgear ultrasonic sensor

PendingCN122194038AAchieve high-precision quantitative assessmentImprove calibration reliabilityElectrical measurements
The application relates to an online self-checking method and device for an ultrasonic sensor of a gas insulated switchgear, and belongs to the technical field of power equipment state monitoring. The method comprises the following steps: recording the arrival time of the same partial discharge pulse at a built-in ultrahigh frequency sensor and an external ultrasonic sensor, extracting the arrival time difference, obtaining the spatial propagation distance from the partial discharge point to the external ultrasonic sensor according to the arrival time difference; constructing a sound intensity transmission and interface reflection model to obtain a sound pressure transmission coefficient; based on the spatial propagation distance and the sound pressure transmission coefficient, a diffusion and absorption attenuation equation of spherical sound waves in viscous fluid is constructed to calculate a theoretical sound pressure; according to the actual output voltage peak value and the theoretical sound pressure, the sound-electricity conversion sensitivity of the external ultrasonic sensor is calculated to generate an online self-checking result. The method is beneficial to non-invasively evaluating the performance degradation of the ultrasonic sensor online, and significantly improves the precision and reliability of the field calibration.
Owner:CHINA UNIV OF MINING & TECH