36results about How to "Solve the complex calculation process" patented technology

The invention relates to a multi-dimension statistical method of testing objects in a communication performance network management system, in particular to the multi-dimension statistics on the testing objects in a mobile communication network management system. When carrying the statistics on the testing objects, the invention aims at the testing objects and establishes a performance index set corresponding to the testing objects for solving the problem of disunity of computing formulas of the same performance index caused by equipment of multiple manufacturers. A statistical module of the testing objects on the statistical object dimension and the time dimension is determined according to the performance index set. When the statistical object dimension and the time dimension of the testing objects are changed, the statistical process on the testing objects does not need manual participation, the automatic statistics on the statistical object dimension and the time dimension on the changed testing objects can be realized, and the flexibility and the efficiency of the system are improved.

The embodiment of the invention provides an airborne distributed type POS (Position and Orientation System) real-time transfer alignment method and device. The method comprises the following steps: establishing a transfer alignment mathematical model and an error model of a large misalignment angle condition; carrying out time updating and measurement updating of a linear state variable and a non-linear state variable by utilizing KF (Kalman Filter) and UKF (Unscented Kalman Filter) respectively; then revising a speed, a position and a gesture of a subsystem by utilizing a linear state variable estimated value and a non-linear state variable estimated value. A position error and the linear state variable estimated value in a non-linear filtering process are used as parameters and the non-linear state variable estimated value in a linear filtering process is used as an error of the parameters, and compensation is carried out when a non-linear state variable one-step predicated covariance matrix and a linear state variable one-step predicated covariance matrix are calculated respectively, so that the transfer alignment precision is improved.

The invention relates to a superhard material grinding wheel micro wear quantity on-line detection method and system. According to the superhard material grinding wheel micro wear quantity on-line detection method and system, when a grinding wheel performs idling on a machine tool, light beams emitted by a laser displacement sensor are made to be irradiated in the direction perpendicular to the grinding surface of the grinding wheel, the laser displacement sensor is made to perform constant-speed moving in the direction parallel to the grinding surface of the grinding wheel, and in the movingprocess, preliminary sampling data are obtained; envelope curve extracting is performed after pretreatment is performed on the preliminary sampling data, and first and second envelope curve data are formed; two-time jumping change points are seeked from the difference between the first and second envelope curve data, and the first envelope curve data between the two points are taken as the data ofan area wherein the grinding surface of the grinding wheel is in; a reference surface average value is obtained according to the data after the pretreatment; the height data of grinding surface of the grinding wheel are obtained according to the data of the area wherein the grinding surface of the grinding wheel is in and the reference surface average value; and the height data of the grinding surface of the grinding wheel before grinding and the height data of the grinding surface of the grinding wheel after the grinding are obtained, so that the grinding wheel wear quantity is obtained. Bymeans of the superhard material grinding wheel micro wear quantity on-line detection method, the detection precision of the grinding wheel wear quantity is improved.