5 results about "Time loss" patented technology

The invention discloses a double-end traveling wave distance measurement method and device for coping with time synchronization loss and a storage medium, and the method comprises the steps: calibrating and storing the inherent phase offset of power frequency voltages at two ends of a line in advance when time synchronization is normal; when a fault occurs after the time synchronization signal is lost, through identifying a power frequency voltage zero crossing point before the fault and combining with the phase offset, or carrying out cross-correlation calculation on a power frequency waveform before the fault at one end and a waveform at the other end, realizing accurate alignment of recording data at the two ends on a time axis, so as to establish a relative synchronization time reference; then, accurately identifying the arrival time of the wave heads of the initial traveling waves at the two ends by using a wavelet transform modulus maximum method; and finally, based on the aligned time reference, calculating the time difference of the traveling wave arriving at the two ends, thereby realizing accurate fault positioning independent of a satellite time synchronization signal. The device and the storage medium are used for implementing the method. According to the method, the robustness and the usability of the power distribution network traveling wave fault positioning system under the time synchronization abnormal working condition are effectively improved.

To simplify a device used for machining and to reduce the time loss of a process.SOLUTION: The present invention is a processing method for removing a chamfered portion of a wafer (side W2) in a bonded wafer (W) in which a base (side W13) and the wafer (side W1) having the chamfered portion (side wall) formed at an outer peripheral edge are bonded to each other. The processing method includes a holding step of holding the base of the bonded wafer by a chuck table (21), an edge trimming step of removing the chamfered portion by rotating the chuck table while causing a blade grindstone (54) to cut into the chamfered portion of the wafer of the bonded wafer held by the chuck table, and a grindstone tip correcting step of correcting a tip shape of the blade grindstone before or after the edge trimming step. In the grindstone tip correction step, the blade grindstone is made to cut into the W12 (upper side) of the wafer of the bonded wafer.SELECTED DRAWING: Figure 2

The invention provides a tire material supply system and a tire manufacturing method, which enable a tire forming device to be compact, further reduce time loss caused by supplement of tire materials, and efficiently supply a plurality of types of tire materials to one forming drum body. Supply units (5, 6) for storing different types of tire materials (M1, M2) are arranged side by side at adjacent storage positions (P1, P2), and the supply directions of the tire materials (M1, M2) discharged by the supply units (5, 6) intersect with each other in a plan view. Tire materials (M1, M2) discharged from the supply units (5, 6) and cut to length are transferred to a supply conveyor (6e) through sliding conveyors (5d, 6d) arranged at the storage positions (P1, P2) and a rotating conveyor (5e) located between the sliding conveyors (5d, 6d) and the supply conveyor (6e), and are sequentially supplied to a belt drum (3).

A system and method of training a deep neural network for object detection in an object detection system. The object detection system including a camera and a controller including the DNN. The method including capturing an image by the camera, receiving the image, predicting, using the DNN, a bounding box and corresponding class label, evaluating the prediction with a total loss function including an object detection loss function, a box regression loss function, and a calibration loss function that takes into account precision and confidence. The method outputs a calibrated image with the object bounding box, the corresponding label, and a respective confidence score, in which the confidence score is a probability associated with the predicted class label.

The invention discloses an intelligent testing method and device for UHPC workability time loss, and relates to the technical field of concrete detection. According to the method, by constructing a rheology-workability mapping model containing physical constraints, the yield stress and the plastic viscosity of UHPC are converted into a slump or expansion degree index universal for engineering, and rapid quantitative analysis of time loss is achieved; the matched testing device comprises an environment simulation bin and a double-section stirring blade, the environment simulation bin can simulate the temperature and humidity environment in the transportation process, the double-section stirring blade adopts the design that the lower portion is in a fishbone shape and the upper portion is in a flat plate shape, and the double technical problems of plastic recovery and rheological testing are solved at the same time on the basis of a single blade. According to the method, continuous and automatic monitoring of UHPC time loss in a closed simulation environment is realized, the problems that a traditional method depends on manpower, steps are tedious and a real transportation environment cannot be simulated are solved, and the detection efficiency and the engineering applicability of data are remarkably improved.