6results about How to "Wide detection coverage" patented technology

The invention discloses a terminal floating window detection method, system and device and a medium, and relates to the technical field of floating window detection.The method comprises the steps that when a user of a to-be-detected terminal generates a touch behavior, a touch event is obtained; determining a floating window characteristic value of the to-be-detected terminal according to the touch event, and determining a floating window type of the to-be-detected terminal according to the floating window characteristic value; and obtaining identification information of the to-be-detected terminal, and determining a floating window detection result of the to-be-detected terminal according to the identification information and the floating window type. According to the invention, the problem of resource consumption caused by random use of the floating window can be avoided, various different types of floating windows can be detected, and the detection coverage range is wide.

The present application relates to the technical field of module testing, and specifically relates to an IGBT testing circuit, method and device, which comprises a power supply unit, a testing control unit, a state indication unit and a testing docking unit; the power supply unit is provided with an AC input end and a DC output end, and is used for outputting a constant DC voltage; the testing docking unit is provided with a plurality of testing ports, each testing port is electrically connected with a collector, an emitter and a gate of an IGBT to be tested; the testing control unit is electrically connected with the power supply unit and the testing docking unit; the state indication unit is connected in series in a testing control loop and an IGBT main current loop to be tested, and is used for directly displaying the on-off state of the loop. The present application sets four groups of testing ports and arranges them in groups, and is specially used for corresponding to three types of electrodes of IGBT, i.e. gate, collector and emitter, and does not need to repeatedly switch detection probes, the wiring mode is fixed and the operation is simple, the requirement for professional ability of operators is reduced, the wiring efficiency is effectively improved, and the present application is suitable for a fast detection scene.

The invention discloses a vehicle detection method based on a bionic compound eye array camera, and belongs to the technical field of automatic driving. Comprising the steps of obtaining multi-view single-camera images, performing feature extraction on the multiple single-camera images, and generating corresponding camera features and semantic segmentation prediction results; processing camera features and semantic segmentation prediction results through an attention mechanism based on semantic information, and mapping the camera features and the semantic segmentation prediction results to a three-dimensional grid map to obtain voxel features; the voxel features are processed through an attention mechanism based on depth information, and final feature representation is generated; and fusing the multi-view final feature representation by combining 3D convolution and deformable convolution, generating an occupation condition of a three-dimensional grid, and judging whether a vehicle exists in the three-dimensional grid. The multi-view information of the camera overlapping area can be fused, and the problem that the detection accuracy of vehicle perception and detection under the large view field angle needs to be improved is solved.

A kind of optical cable surface detection device, including pedestal and being provided with primary detection mechanism and secondary detection mechanism in top, primary detection mechanism includes primary detection base and primary detection mould, mould placing groove is recessed on primary detection base, and first optical cable transmission through-hole is opened in the center of groove bottom, primary detection mould is placed in mould placing groove and is provided with optical cable detection through-hole in the center, secondary detection mechanism includes secondary detection base and multiple detection components, secondary detection base is provided with second optical cable transmission through-hole, multiple detection components are evenly distributed and are arranged on secondary detection base, one end is fixedly connected with secondary detection base, the other end is inserted into secondary detection base and is connected with detection abutting piece by elastic expansion component.The primary detection mechanism in the application carries out rough detection to optical cable surface, is used to filter the larger bulge on optical cable surface, multiple dynamic detection wheels in secondary detection mechanism are arranged in phase and are closely combined with optical cable surface to carry out fine detection, and detection coverage is wide.

The utility model discloses optical detection equipment which comprises a conveying device used for conveying a to-be-detected piece; the detection device comprises a first detection device arranged above the conveying device and a second detection device arranged below the conveying device, and the second detection device comprises a lens, a camera arranged at one end of the lens and a projection assembly arranged on the side of the other end of the lens; the second detection device is used for acquiring height data of the lower surface of the to-be-detected piece and a second image of the lower surface of the to-be-detected piece, and the first detection device is used for acquiring a first image of the upper surface of the to-be-detected piece; and the controller is used for performing defect detection on the to-be-detected piece according to the height data, the first image and the second image. The detection devices are arranged above and below the conveying device, so that the upper and lower surfaces of the to-be-detected piece can be detected at the same time, and for the to-be-detected piece of which the front and back sides need to be detected, the detection time can be shortened and the efficiency can be improved by detecting the front and back sides at the same time.

This invention belongs to the field of environmental analytical chemistry, specifically a wastewater analysis method for the simultaneous detection of multiple synthetic cannabinoids and their metabolites. This invention employs a micro-volume direct injection method combined with ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS / MS) for qualitative and quantitative analysis of 72 synthetic cannabinoids and their metabolites in wastewater samples. This invention eliminates the need for complex pretreatment processes such as solid-phase extraction, is simple to operate, has a short analysis time, high sensitivity, and wide coverage, making it suitable for high-throughput monitoring of synthetic cannabinoids in wastewater.