4 results about "Permissible Value" patented technology

The invention relates to the technical field of water conservancy and hydropower engineering safety monitoring, and discloses a safety monitoring data abnormal value identification method based on a sliding window and morphological logic, and the method comprises the steps: processing an original data sequence through a window sliding at a fixed odd length, calculating a median and a median absolute deviation, and estimating a standard deviation; generating a dynamic upper and lower threshold sequence; comparing with a dead zone tolerance threshold value, converting into a logic vector, identifying a connected region with continuous truth values, and secondarily marking all data points in the region with the length exceeding the maximum allowable value as abnormal to obtain an abnormal value logic sequence; and performing linear interpolation processing on the data points marked as abnormal values in the abnormal value logic sequence to obtain a cleaned data sequence without abnormal values. According to the method, more than 95% of invalid data can be efficiently eliminated while the integrity of real signals is reserved, a high-reliability data basis is provided for data analysis and structural safety evaluation, and the method has important engineering application value.

The embodiments concern a method comprising determining at least one parameter value, wherein the at least one parameter value comprises one or more of following: a unit type, a scalability layer identifier, and a temporal sublayer identifier; deriving a one-byte header for a unit comprised in a bitstream, wherein the at least one parameter value is represented by at least one syntax element and pre-defined information; if the one-byte header has an allowed value among one or more allowed values, the method comprises determining a header for the unit to be the one-byte header, wherein the header comprises a first byte, and to include the header in the bitstream The embodiments also concern technical equipment for implementing the method.

The invention relates to the technical field of thread gauge traceability management and control, in particular to a thread gauge code traceability management and control method and system, and the method comprises the steps: designing and printing a unique code for each thread gauge; using data are recorded through the codes, frequency, load and environment conversion coefficients are calculated, and the abrasion loss is calculated according to accumulation. By comparing the abrasion loss with the maximum allowable value, the relative abrasion degree and the number of remaining use times can be obtained, and therefore the thread gauge needing to be inspected is determined. Meanwhile, the system monitors the reject ratio, the abrupt change degree and the number of times of continuous disqualification, carries out early warning and determines an inspection object. And after inspection, the basic wear rate constant is corrected according to the difference between the verification result and the predicted value, and the next calibration period is dynamically adjusted. The corrected constant and the new period are fed back to the rule base, prediction and decision of the next period are continuously optimized, and closed-loop dynamic optimization is formed. According to the invention, the accuracy of thread gauge code traceability control is improved.