38results about How to "Address missing data" patented technology

The invention provides a vehicle mileage data statistical method, which comprises the steps of: receiving and analyzing vehicle data information uploaded by a vehicle-mounted terminal; acquiring a mileage record cumulative value, and replacing an original mileage record cumulative value in a first database with a vehicle mileage value when the original mileage record cumulative value is less thanthe vehicle mileage value; acquiring a mileage record cumulative value in the first database at a preset daily recording time point, and associating the mileage record cumulative values, mileage record dates and vehicle identification information; and regarding a difference value between a vehicle next-day mileage record cumulative value and a vehicle previous-day mileage record cumulative value as a mileage value run by a vehicle the day before based on daily cumulative mileage record data in a second database, and forming a piece of vehicle daily mileage statistical data. The invention further provides a vehicle mileage data statistical device. The vehicle mileage data statistical method and the vehicle mileage data statistical device can process the vehicle mileage data, and precisely count the vehicle daily mileage and monthly mileage data.

The invention discloses an intelligent detection management system applied to the electric power field and an intelligent detection method thereof. The method comprises the steps: scanning a first identification code through an electric power detection auxiliary terminal to obtain the instrument identification information of a test instrument, and transmitting the instrument identification information to an intelligent operation and maintenance management platform to obtain a target detection item list of the instrument; determining a target detection item of this time, obtaining device identification information of the device to be detected by scanning the second identification code, sending the device identification information to the intelligent operation and maintenance management platform to obtain target detection point information of the device for the target detection item, and prompting a tester, thereby reducing the requirements for the tester and improving the test efficiency. using the test instrument for detecting a target detection item of the equipment to be detected, sending a detection value corresponding to each detection point to the electric power detection auxiliary terminal, wherein the electric power detection auxiliary terminal associates the detection value with the corresponding detection point, associates the detection value with identity informationof a tester this time and then uploads the detection value to the intelligent operation and maintenance management platform. The accuracy in the detection data collection process is improved.

The invention discloses a dynamic time delay adjusting device and method for unginned cotton foreign fiber sorting system. The device comprises a first linear array CCD camera, a second linear array CCD camera, a cotton falling cavity, a gas spray valve, a spray valve driver and an embedded type FPGA image processor; the first linear array CCD camera and the second linear array CCD camera are positioned at two sides of the cotton falling cavity with vertical height difference h existing between the two cameras, images of unginned cotton lumps falling in the cotton falling cavity are collected, the first linear array CCD camera and the second linear array CCD camera are connected with the embedded type FPGA image processor via CameraLink wire cables, the spray valve driver is connected with the embedded type FPGA image processor via a difference signal wire cable, and the gas spray valve is connected with the spray valve driver. According to the dynamic adjusting device and method, the embedded type FPGA image processor is used for image processing operation and feature matching operation, unginned cotton flow falling speed can be accurately measured and calculated, foreign fiber striking time delay of the unginned cotton foreign fiber sorting system can be dynamically adjusted, and accuracy of the unginned cotton foreign fiber sorting system can be improved.

The embodiment of the invention discloses a geofence data extraction method, a device and equipment. The method comprises the steps of acquiring a target geofence image, wherein the target geofence image comprises reference points with known geographic coordinates; preprocessing the target geo-fence image to obtain a binarized image with a closed contour; converting the binarized image into an ordered point sequence set; and determining the geographic coordinates of each pixel point of the point sequence set according to the geographic coordinates of the reference points.

The embodiment of the invention provides a flow data processing method and device based on RPA and AI, equipment and a medium. The method comprises the following steps: S1, reading a data table corresponding to a current process in a server; and S2, according to a preset data writing rule, the operation data in the current process execution process is written into the data table, and the preset data writing rule corresponds to the data structure of the data table. By adopting the technical scheme, the problem of data missing in the execution process of the RPA robot is solved, and a basis is provided for review of subsequent operation records.

The invention discloses a ship track monitoring system based on a block chain. The ship track monitoring system comprises a main communication node A0 and n replica communication nodes, the main communication node A0 and the n replica communication nodes form a block chain; the block chain stores AIS information; the replica communication node obtains AIS information from the block chain, and track backtracking query is completed; the invention relates to a ship trajectory monitoring system based on a block chain technology, which mainly solves the problem of accurate backtracking of a channel supervision mechanism on the whole process of a ship moving trajectory, and effectively prevents data missing caused by ship trajectory data tampering and node abnormity. The strong-collisiveness cryptographic algorithm used in the invention ensures the security and confidentiality of the data, the load of all nodes is reduced by using a node marginalization calculation summarization mode, the resource waste is reduced, and hacker attacks can be prevented.

The invention discloses a data-driven power system attacked measurement data two-layer restoration method, and relates to the field of power system operation safety maintenance, and the method comprises the steps: building a measurement regression model under each topological structure according to the network parameter information of a regional power grid, and simulating an attacked measurement vector under an FDIA working condition; separating attacked data on the upper layer by using a multi-dimensional scaling method for dimension reduction in combination with a federal forest algorithm; inputting the separated normal data into a generator G of the improved CBEGAN at the lower layer to generate data G (z); the G (z) and a historical measurement regression model are injected into a discriminator D, and authenticity is distinguished by calculating a Hellinger distance between reconstruction error distributions of a real sample and a generated sample; convergence is judged through the target M, and finally data restoration is achieved. According to the method, the measurement data can be effectively restored on the basis of the residual normal data, the self-healing capability of the power grid after being attacked is realized, and the method has relatively good measurement convergence, control distribution diversity and practicability.

The invention discloses a robot life cycle management method, a device and a storage medium. The method comprises the steps: enabling robot equipment to be in butt joint with an enterprise managementsystem, and distributing a corresponding robot equipment certificate to the robot equipment; performing data interaction with a cloud server based on the distributed robot equipment certificate, monitoring the operation state of the robot corresponding to the robot equipment certificate in real time, obtaining all operation data corresponding to the operation state, and uploading all the obtainedoperation data to the cloud server; based on the robot equipment certificate, performing multi-dimensional data analysis and calculation on all data associated with the robot equipment certificate, and managing the life cycle of the robot corresponding to the robot equipment certificate; the problems of insufficient informatization level and data loss of the existing robot in each life cycle linkare solved, a set of management mode for the full life cycle of the robot is formed, the scheduling of the robot is optimized, and the life cycle of the robot is favorably prolonged.

The invention discloses a quantum chemistry method capable of calculating gas-phase hydroxyl radical reaction rate constants of various perfluoroalkyl/polyfluoroalkyl compounds. The gas phase kOH value of the PFASs can be directly obtained by utilizing the most stable configuration of the known PFASs and applying the constructed quantum chemical calculation method. The construction process of the quantum chemistry method comprises the following steps: collecting 15 PFASs stable configurations of known kOH, searching a reaction path of PFASs and. OH by using a density functional theory, carrying out subsequent structure optimization, calculating single-point energy by using different DFT methods, and calculating thermodynamic parameters and kOH. And performing linear fitting on results of different calculation methods and experimental values, and screening an optimal method. The quantum chemical calculation method developed by the invention can accurately and efficiently calculate the kOH of the unknown PFASs, provides a necessary tool for evaluating the atmospheric durability of the PFASs, and has very important significance.

The invention provides a total radiation data correction method based on photovoltaic power generation historical information. The method comprises the following steps: dividing photovoltaic power station historical data into to-be-corrected data and non-missing historical data; substituting power data in the to-be-corrected data into a pre-trained optimization model to obtain total radiation data corresponding to the to-be-corrected power data; fitting the total radiation data in the non-missing historical data and the total radiation data corresponding to the to-be-corrected power data to obtain total radiation data; wherein the historical data of the photovoltaic power station comprises power data and total radiation data, and the optimization model is obtained by training a sample constructed by non-missing historical data. Complete total radiation sequence data is provided for a photovoltaic power station, and the problem of data missing in total radiation monitoring is solved.