6results about How to "Overcome error" patented technology

This specification provides an integrated circuit power supply analytical redundancy self-healing control method and apparatus. The integrated circuit power supply analytical redundancy self-healing control method includes: acquiring the current operating data and historical operating data at multiple historical moments collected by various sensors in an aging bench monitoring system; extracting fusion features from the historical operating data and the current operating data; processing the highly discrete data in the operating data and the prediction results of the operating data from the previous moment to obtain the prediction results of the operating data at the current moment; performing multi-task state evaluation based on the operating data, fusion features, and the prediction results of the operating data at the current moment to generate evaluation results of the output voltage, ripple voltage, and health status of the secondary power supply; updating the parameters of the PID controller based on the evaluation results; calculating and outputting control signals through the updated PID controller to perform self-healing control of the output power of the secondary power supply.

This invention provides a multi-contact force sensing device and method for a continuum robot based on fiber optic gratings (FBGs). The device includes multiple sequentially connected unit bodies, each comprising a rigid segment and a flexible segment. A positioning block is mounted on the rigid segment of each unit body. A central cavity is formed in the center of the positioning block, and driving cavities are formed around the periphery of the positioning block. Multiple driving cavities are spaced apart circumferentially along the positioning block. A multi-core optical fiber with multiple FBG sensors is disposed within the central cavity, and a single-core optical fiber etched with multiple FBG sensors is disposed within each driving cavity. By reconstructing the tension along the entire driving filament using FBG sensors, explicit modeling of the friction between the driving filament and the driving channel is eliminated, overcoming the errors and excessive computational resource consumption caused by modeling. This method can simultaneously estimate the magnitude of multiple contact points and contact forces on the continuum robot body, providing significant assurance for the safe intervention of surgical robots.

A kind of optical fiber gyro inertial platform gyro installation error angle test and compensation method, for testing optical fiber gyro platform optical fiber gyro is installed in platform body after the installation error angle relative to hexahedral coordinate system, using based on instrument installation and instrument error model, error coefficient calibration when gyro installation error is coupled with ground speed in gyroscope output, so as to influence the true value of the calibration result of instrument error coefficient, calibration is carried out in different azimuth, and the ground speed coupled with gyro installation error is different, so the calibration results of four orthogonal azimuths are combined, to realize the gyro installation error angle solution in analytical way.The gyro installation error angle obtained is compensated to error model, to solve the test problem of high-precision optical fiber gyro platform gyro precision.

This invention relates to the field of environmental monitoring and early warning technology, specifically disclosing an environmental risk early warning service system based on multi-source data fusion. The system simultaneously collects real-time environmental monitoring data sequences and dynamic trajectory simulation data sets of pollutant release in the target area; after anomaly identification and correction of the monitoring data, it extracts diffusion characteristics representing the intensity and direction of pollutant migration; based on the simulation data and real-time meteorological parameters, it performs inverse probability inference to generate diffusion path characteristics representing the spatial probability of potential pollution sources; after normalizing and aligning the two types of features, it performs multi-level confidence calibration and nonlinear fusion to generate a quantitative assessment value of the regional risk situation; based on the interval of the assessment value, it initiates an early warning level and automatically generates structured early warning instructions. This invention solves the technical problem of abnormal observation error propagation in multi-source heterogeneous data fusion through dynamic adaptive error processing and robust fusion mechanisms, improving the accuracy, reliability, and timeliness of early warning.

This invention provides a plug-type temperature sensor, including a plug body with an internal assembly cavity; a metal part assembled within the assembly cavity, comprising an abutment ring and a threaded sleeve, used for abutting and fixing the cable joint, respectively; a metal cover and the metal part forming a capacitor to power the sensor; a circuit board positioned between the metal cover and the metal part; a first temperature sensor electrically connected to the circuit board, with its first temperature measuring head abutting the abutment ring; and a second temperature sensor electrically connected to the circuit board, with its second temperature measuring head abutting the threaded sleeve. This invention, by setting two temperature sensors at different locations on the metal part, can detect the temperature at different positions of the cable joint. The detection data are cross-referenced and verified, effectively improving detection accuracy and overcoming the problem of single-point detection error. It can more accurately reflect the actual temperature at the electrical connection point of the T-type cable joint, providing reliable temperature monitoring data for the safe operation of the power grid. Furthermore, the optimized structure achieves multiple functions within a limited space.

This invention relates to the field of metal environment imaging, and more particularly to an environmental imaging method and apparatus based on millimeter-wave radar. The method includes the following steps: transmitting multi-frequency signals to the metal environment to be detected using a millimeter-wave radar array, and extracting multipath signal sequences; performing interferometric phase analysis based on the multipath signal sequences to obtain the three-dimensional coordinates of the metal and the actual target reflection point; performing iterative forward calculation based on the three-dimensional coordinates of the metal and the actual target reflection point to obtain a first metal environment image; and performing iterative residual convergence on the first metal environment image to output a second metal environment image. This invention achieves high-precision and reliable three-dimensional imaging of complex metal environments.