Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

222 results about "Evaluation period" patented technology

Evaluation Period. The purpose of the one year on-the-job performance evaluation period is to assess the knowledge, skills and abilities of individuals who have been selected for employment. Candidates must successfully demonstrate their ability to perform the essential functions of the job, with or without a reasonable accommodation,...

Battery cycle life prediction method

ActiveCN105068009ACycle Life PredictionRapid Evaluation ToolElectrical testingCapacity lossPower flow
The invention discloses a cycle system mode capable of achieving life prediction. The cycle system mode comprises the following steps: placing a to-be-evaluated battery in a cycling condition needing to be evaluated to perform a cycle test, recording an accumulated cycle frequency and the cycle capacity maintenance rate of the battery, performing small-current charging and discharging tests on the battery after each certain cycle frequency or capacity loss rate at the same time, recording voltage and capacity data of the battery in the charging and discharging process, and recording the corresponding cycle frequency and the corresponding capacity maintenance rate; and then performing data fitting and calculation according to the accumulated cycle frequency and the cycle capacity maintenance rate of the battery and differential data of the capacity on voltage, and performing prediction on the battery cycle life. Compared with a conventional cycle test, the cycle system mode greatly shortens the service life evaluation period and prevents energy consumption and resource waste which are generated by a long-term test; and, furthermore, because the data fitting is performed on the basis of short-term actually measured data, the cycle system mode has higher universality and high prediction accuracy compared with a pure theory calculation and experience model.
Owner:深圳一特科技有限公司

Shale gas reservoir stratum exploration method and device

The invention relates to the technical field of exploration, in particular to a shale gas reservoir stratum exploration method and device. The shale gas reservoir stratum exploration method comprises the steps of obtaining a core sample in a target exploration area, determining hydrodynamic force causes of a shale bed to which the core sample belongs according to the shale sedimentary structure of the core sample, calculating the total organic carbon value of the core sample after the hydrodynamic force causes of the core sample are determined, determining shale gas storage information of the shale bed to which the core sample belongs according to the hydrodynamic force causes and the total organic carbon value of the core sample, and conducting shale gas reservoir stratum positioning exploration on the target exploration area according to the determined shale gas storage information. According to the shale gas reservoir stratum exploration method and device, the number of referred parameters is small, data are easy to obtain, the cost for evaluation of favorable zones and the reservoir stratum in the earlier stage of exploration is reduced, the evaluation period is shortened, the reservoir stratum evaluation problem existing in the earlier stage of exploration can be better solved, and actual requirements for shale gas exploration development can be better met.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

Method for intelligently evaluating running state of hydroelectric generating set

ActiveCN103500425AAccurately grasp the running status areaReal-time grasp of operating status change informationData processing applicationsReal-time dataEngineering
The invention introduces a method for intelligently evaluating the running state of a hydroelectric generating set. The method comprises the following steps of: (1) acquiring state real-time data of the hydroelectric generating set; (2) setting intelligent evaluation bases and an evaluation period; (3) evaluating a running state region of the hydroelectric generating set; (4) establishing a running state region database of the hydroelectric generating set; (5) storing the running state region database of the hydroelectric generating set into a real-time running state region database of the hydroelectric generating set; (6) evaluating the running state of the hydroelectric generating set; and (7) releasing information. The method has the advantages that 1, the running state of the hydroelectric generating set can be mastered in real time so as to regulate the running mode and the overhaul plan; 2, the practicality is high and state evaluation can be implemented without additionally adding equipment and the running state region of the hydroelectric generating set is timely and accurately divided; 3, the method has the great guiding significance for ensuring safety operation of the hydroelectric generating set and avoiding an accident being expanded; and 4, the method also has the important significance for coordinated development of a source network.
Owner:STATE GRID HUNAN ELECTRIC POWER +2

Automatic database performance analysis and early warning system

The invention discloses an automatic database performance analysis and early warning system. The manual analysis evaluation cost for database performance is high, the manual analysis evaluation period is longer, and a service system is often influenced when a failure is found. According to the automatic database performance analysis and early warning system, database performance data are periodically acquired through a database performance data timed acquisition tool, the acquired performance data are automatically analyzed in real time through an automatic database performance analysis tool, an analysis result is compared with a database performance base line to timely find a hidden performance danger, and an alarm is automatically given through a configurable early warning mechanism, so that manual intervention is timely carried out, and operation of the service system is prevented from being influenced. A method for automatically analyzing the database performance data is divided into two stages, wherein in the first stage, single-time performance data are analyzed; in the second stage, continuous performance data are comprehensively and relationally analyzed, and future performance conditions are predicted. The early warning system can provide various methods for early warning through electronic mails, short message service, instant messages, logs, screen display, voices, indicator lamps and the like.
Owner:袁晓东
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products