6results about How to "Data error is small" patented technology

This invention discloses a fatigue testing method for circular air vents based on data analysis, belonging to the field of automotive component testing technology. The invention includes determining the fatigue testing process of the air vent workpiece using a fatigue testing device, thereby defining the range of key fatigue testing data, obtaining test results below the design fluctuation standard range during the fatigue testing process, and constructing a set of unqualified test results. This invention ensures that the test results accurately reflect the true fatigue state of the workpiece through multi-dimensional data analysis and correlation with actual scenarios, providing reliable support for product quality control. Furthermore, it improves testing efficiency, reduces labor costs, and continuously optimizes the testing system through automated processes and closed-loop improvement mechanisms. Ultimately, it provides a standardized fatigue testing solution for the automotive component testing field that balances accuracy and efficiency, which is of great significance for ensuring the durability of circular air vent workpieces, reducing after-sales maintenance costs, and improving user experience.

This invention discloses a concrete strength testing device and its usage method, comprising: a rebound hammer body and a rebound hammer rod; the rebound hammer rod is disposed on the rebound hammer body; further comprising: a rebound hammer replacement component disposed on the rebound hammer rod, a movable component disposed on the rebound hammer rod, a reset component disposed on the movable component, a support component disposed on the movable component, a fixing component disposed on the support component, an installation component disposed on the rebound hammer body, and an ultrasonic transducer component disposed on the installation component. This invention relates to the field of concrete strength testing, ensuring that the measuring point positions and contact coupling conditions of rebound and ultrasonic testing are highly consistent, minimizing data errors caused by measuring point position deviations and surface condition differences. The structure is relatively simple and easy to use.

This invention discloses a method for locating natural gas leak sources in salt cavern gas storage well sites, comprising the following steps: 1) Deployment of point-type laser methane detectors within key monitoring areas. 2) Monitoring of unknown areas outside the key monitoring areas. 3) Leak source inversion and location: When the concentration value of leaked natural gas in a salt cavern gas storage well site, as monitored by the point-type laser methane detector, reaches a predetermined threshold, the leak source needs to be located promptly. The specific process is as follows: Step 1) Establishing a leak diffusion model; Step 2) Establishing an objective function F; Step 3) Locating the leak point. The leak source location method of this invention has high accuracy and cost-effectiveness, can efficiently obtain concentration interpolation with smaller errors, and solves the problem of insufficient full-coverage monitoring of salt cavern gas storage well sites.

The application relates to an electronic component testing device and a testing method, and belongs to the technical field of electronic component testing. The device comprises a workbench, a testing device installed on the surface of the workbench, a clamping conveying assembly, a PLC controller, a material box, a solder flux pool, an electronic component fixing piece, a pin electronic component, a swing frame, a tin pool assembly, a cleaning assembly, a detection assembly and a transmission assembly. The application has novel design and reasonable structure. Compared with traditional manual testing operation, the application can effectively ensure that the tin part on the pin and the immersion area data are consistent, is convenient for batch detection, reduces data error, and facilitates detection of the tin part on the pin through cooperation of a CCD camera and a PLC controller, improves data accuracy, effectively replaces manual detection using a magnifying glass, effectively replaces manual detection, improves work efficiency, testing precision and testing quality, has high orderliness and good use effect.

The invention discloses a data supervision system based on a block chain, and the operation method of the system comprises the following steps: 1, a supervision terminal carries out the division of information data supervision dimensions according to the responsibility content and authority size of a project, and records the data in each supervision dimension process, a data supervision log of each link of the whole project is tried; 2, building a block chain data block of supervision content, and carrying out block chain uploading on the data information of each project supervision stage; 3, the supervision terminal carries out real-time progress target control and risk quality supervision on project supervision information data and files in each stage; by establishing a block chain data block based on project supervision content, data information of a current project preparation implementation stage is subjected to first-stage project data information uplink, and the method has the characteristics that information data cannot be privately changed and multi-stage data quality is controlled.

The invention provides a method for determining the critical overtopping flood scale of a reservoir dam, and belongs to the technical field of water conservancy project evaluation, and the method comprises the steps: S1, obtaining key basic data of a reservoir; s2, fitting the flood peak flow data and the flood process detailed data of the flood in different recurrence periods to obtain a corresponding flood flow hydrograph Q in (t); s3, a certain flood flow hydrograph Q < in > (t) is combined with the water level-reservoir capacity-floodway discharge capacity curve to obtain a corresponding flood regulation discharge flow hydrograph Q < out > (t); s4, judging whether the flood process is critical overtopping flood or not by utilizing the flood flow hydrograph Q in (t) and the flood regulation discharge flow hydrograph Qout (t); and S5, outputting the flood parameters of the critical overtopping flood. According to the method, the reservoir inventory and the critical overtopping flood scale are combined, and the flood parameters can be accurately determined.