53 results about "Equipment observation" patented technology

The invention provides a position synchronizing method of defect detection and observation devices, relating to the technical field of semiconductor detection. The method comprises the steps that a reference wafer with a defect is provided; the defect detection device detects the reference wafer, and the defect observation device observes the defect, and corrects a defect observation program according to a first deviation value; after a set time interval, the defect detection and observation devices respectively detects and observes the defect of the reference wafer again to obtain a second deviation value of the central positions of the defect detection and observation devices; and the first deviation value is corrected and updated according to the second deviation value. According to technical scheme of the invention, the central positions of the defect detection and observation devices are kept consistent, thereby avoiding failure of automatic observation due to great difference between the defect detection and observation devices.

The disclosure relates to a method for setting and visualizing parameters of an objective lens of a camera, in particular for focusing on a moving object, and to a system for per-forming the method. The camera is, for example, embodied as a film camera, in particular as a film camera used in cinematography. The method includes the following steps: calcu-lating a relative position and an alignment of a depth of field of the objective lens in the 3D space, observing the 3D space and / or the object with an AR display and observation de-vice, displaying the relative position and the alignment of the depth of field of the objective lens as an image in the AR display and observation device and / or displaying a focal plane as an image in the AR display and observation device, and setting the objective lens to ob-tain a desired depth of field of the objective lens.

The present application relates to a satellite positioning method, device, computer equipment and storage medium for high-altitude equipment. The method includes: acquiring the equipment observation data of the high-altitude equipment to be positioned; determining the approximate position of the high-altitude equipment according to the equipment observation data; Corresponding base station observation data; according to the equipment observation data and base station observation data, determine the common-view satellites corresponding to the high-altitude equipment and each target base station; the common-view satellite is the satellite observed by the high-altitude equipment and the target base station; the observation from the equipment The common-view satellite observation data corresponding to each common-view satellite is determined from the data and the base station observation data, and the satellite positioning data of the high-altitude equipment is obtained according to the common-view satellite observation data. By adopting the method, the satellite positioning accuracy of high-altitude equipment can be improved.

The invention discloses a method for quickly examining an electrocardiogram. The method includes the steps of 1, starting electrocardiograph equipment, and well preparing for examination; 2, connecting a lead wire to a to-be-examined object, and starting input of electrocardio signals to the electrocardiograph equipment; 3, observing an electrocardiograph display screen, and starting printing of oscillograms when waveforms of the electrocardio signals of the to-be-examined object are stable; 4, increasing the speed of printing demanded thermo-sensitive paper, and increasing the heating frequency of a printing head in the electrocardiograph equipment, wherein the waveforms of the electrocardio signals are printed and displayed on the thermo-sensitive paper, the electrocardiograph equipmentcontinues collecting the waveforms demanded later at the same time, and printing is conducted during collection of the waveforms till printing of the waveforms is completed. After the method for quickly examining the electrocardiogram is adopted, by increasing the chart speed of the thermal-sensitive paper, increasing the heating frequency and previously collecting and caching half length of the waveforms before the electrocardiograph equipment carries out printing, the overall printing process of the oscillograms of the electrocardio signals can be shortened by half, the efficiency of examining the electrocardiogram of a patient is improved, and more precious time can be obtained for rescuing more life.

A data transmission apparatus for data transmission having a plurality of master devices, at least one slave device, a transmission channel monitoring circuit, and a master device observer circuit is provided. A first master device of the master devices performs a first data transmission, and a second master device requests for a second data transmission to the slave device before completing the first data transmission. By detecting an idle-busy status of a channel of the slave device with the transmission channel monitoring circuit, the master device observer circuit switches the second master device to a waiting mode or a transmission mode according to the idle-busy status of the channel of the slave device. In addition, the waiting mode suspends the second data transmission and to wait for completion of the first data transmission, and the transmission mode performs the second data transmission. A data transmission method is also provided.

An adaptive nonlinear degradation remaining life prediction method, including: establishing a nonlinear degradation state space equation, and performing forward prediction based on equipment health indicators; obtaining the posteriori of the hidden variables in the nonlinear degradation state space equation according to the forward prediction results After estimation, an expectation-maximization algorithm is used to update the initial parameters and noise matrix in the nonlinear state space equation, and the updated parameters and a posteriori estimation results are substituted into the equation to obtain the overrun time. The difference between the overrun time and the current time The value is used as the predicted value of the remaining life; each time the newly collected equipment observation data is obtained, the above process is repeated, and the initial parameters and noise matrix in the equation are updated each time the new observation data is obtained, and the remaining life at the current moment is obtained Predictive value. The invention fully considers the individual difference, degradation randomness and measurement error in the non-linear degradation process of the equipment, and ensures a relatively high prediction accuracy of the remaining life.

The invention discloses a method for monitoring the compactness of concrete pouring of rigid beam-column joints based on an endoscope, comprising: supporting a template; opening holes; installing a transparent acrylic tube; connecting the endoscope and monitoring and display equipment through a hard cable ; Push the endoscope to the first observation point; start pouring the beam and column concrete, and monitor the concrete pouring density of each observation point from bottom to top: observe whether the concrete poured at each observation point is transparent acrylic through the monitoring display device. The tube is wrapped; when the transparent acrylic tubes are all wrapped, remove the endoscope and the transparent acrylic tube; complete the density monitoring; repeat the relevant steps until the density monitoring is completed for all observation parts; continue to pour the beam and column concrete until the completion Construction of stiff beam-column joints. The invention realizes the whole process monitoring of the hidden danger position, has high construction efficiency and low construction cost, can ensure the pouring and compacting effect of beam-column concrete, and improves the construction quality.