8results about How to "Judge quality" patented technology

The present invention discloses a system and method for detecting the internal quality defects of prebaked anodes by a multi-point deformation method, including a frame, a conveying mechanism, a pressurizing mechanism, and a detection mechanism; the system also includes an industrial computer; the pressurizing mechanism and a laser displacement sensor are both connected to the industrial computer; the carbon block is deformed by the pressurizing mechanism, and the detection mechanism detects the deformation of the carbon block and transmits it to the industrial computer. The system of the present invention realizes pressurization of the carbon block to be detected by the joint action of the top pressurizing mechanism and the bottom pressurizing mechanism, and deforms the carbon block by controlling the pressurizing pressure. The laser displacement sensor detects the multi-point position of the carbon block, and the industrial computer calculates the crack situation inside the carbon block, so as to more accurately and quickly judge the quality of the carbon block. Compared with the manual knocking method, the accuracy and operation efficiency of the system are improved.

The present invention relates to the technical field of driver status monitoring, and in particular to a driver duty status monitoring and early warning system and method, comprising an early warning host installed above a cab instrument panel, a main camera for collecting a driver's face video, a panoramic camera for recording a panoramic view of the cab and the instrument panel, a road condition camera for collecting road conditions, a data acquisition unit for collecting data from the early warning host, a first analysis unit connected to the data acquisition unit, extracting the latest frame image in the face video, and judging whether an early warning is needed according to the face image confidence obtained by a target detection model, and a second analysis unit determining whether an early warning is issued according to the driver's eye closing time, eye aspect ratio and sight track evaluation value. The present invention overcomes the problem that the quality of the face video collected in the prior art is poor, and the accuracy of the analysis of the face data is low, which makes it impossible to accurately judge whether the driver is in a fatigue driving condition.

The invention discloses a method for losslessly identifying the internal quality of nuts based on voiceprint features, which specifically relates to the field of acoustic detection technology, and comprises the following steps: first, performing ensemble empirical mode decomposition on collected nut impact soundprint signals; second, using a mutual correlation coefficient method to screen intrinsic mode function components, and reconstructing a soundprint signal with noise and redundant information removed; third, extracting time domain, frequency domain, and time-frequency domain features of the reconstructed soundprint signal; fourth, using a recursive feature elimination method to screen features; fifth, constructing a support vector machine classifier, inputting the screened feature set, and classifying and identifying the internal quality of nuts; the invention utilizes voiceprint features for detection, does not need to destroy the nut shell or internal structure, ensures the integrity of the nuts, and reduces waste and loss. Compared with traditional physical or chemical detection methods, the voiceprint feature detection method has higher detection speed and efficiency, can quickly screen and classify a large number of nuts, and accurately judge the internal quality of the nuts.

The invention relates to the technical field of red date grading, and discloses a red date conveying roller belt which comprises a rack and a visual detection device installed on the rack, chain wheels are rotationally connected to the two ends of the rack, and a chain located below the visual detection device is connected between the chain wheels at the two ends in a sleeved mode. Conveying rollers are arranged on the chain in the conveying direction of the chain at equal intervals in a rotating mode, a jet head located above the conveying rollers is fixedly installed on the machine frame, and a blockage removing assembly and a cleaning assembly are sequentially arranged on the machine frame and located below the conveying rollers in the conveying direction of the chain. The unblocking assembly comprises a plurality of movable rods which are arranged between the adjacent conveying rollers and ascend and descend repeatedly, and the cleaning assembly comprises a plurality of cleaning brushes with the ends making contact with the conveying rollers. The device has the following advantages and effects that impurities on the surfaces of the red dates can be blown off, the placing positions of the red dates are adjusted, and then the recognition work efficiency is improved.

The present invention belongs to the technical field of steel structure detection, and specifically relates to an ultrasonic flaw detection device for the construction and installation of a factory steel structure and a method for using the same. The ultrasonic flaw detection device for the construction and installation of a factory steel structure includes a detection body, an adjustment limit body and a support base. The detection body is arranged on the adjustment limit body, and the support base is fixedly installed at the bottom end of the adjustment limit body. The adjustment limit body includes a sliding adjustment frame, a fixed limit frame plate, a fixed cross plate and a second electric push rod. The sliding adjustment frame is slidably clamped on the fixed limit frame plate, the fixed cross plate is fixedly connected to the fixed limit frame plate, and the second electric push rod is evenly fixedly installed at the bottom end of the fixed cross plate, and the driving end of the second electric push rod is fixedly connected to the bottom of the sliding adjustment frame. The present invention is convenient for loading steel structures, can realize fast and accurate detection, and saves time and effort.

The utility model relates to the technical field of automobile part detection, and particularly discloses a gear double-face meshing comprehensive measuring device with an outer circle run-out detection function, which comprises a standard gear arranged on a working table and two ejector pins arranged on the working table, the ejector pins are arranged at an interval, the tips of the ejector pins are oppositely arranged, and the standard gear and the ejector pins are arranged on the working table. The two ends of the rotating shaft abut against the end face of a to-be-measured gear so that the position of the to-be-measured gear can be restrained and the to-be-measured gear can rotate in the axis direction of the rotating shaft. The mounting seat has a basic height and is vertically arranged on the workbench; and the detection mechanism is arranged on the mounting seat so as to detect the excircle run-out information of the gear to be detected. Therefore, the technical problem that the existing measuring device is difficult to accurately detect the size parameter of the shaft gear is solved.

This utility model relates to the technical field of clinker R&D auxiliary equipment, and discloses a clinker auxiliary R&D device with identification function. It includes a storage rack, an external timer, and a sealed container extending outwards from the storage rack. An elastic sheet is located inside the storage rack, and a trigger-type locking block is connected to the other end of the elastic sheet to limit the position of the sealed container. A photoelectric switch, corresponding to the position of the trigger-type locking block and capable of sensing its current position, is located inside the storage rack. The photoelectric switch is linked with the timer. A sealing plate is hinged to the top of the sealed container. A locking element is located outside the sealed container, with its output end linked to the sealing plate for locking and its input end abutting against the storage rack. This clinker auxiliary R&D device with identification function has the advantages of convenient recording of storage and reaction times and good moisture-proof storage.

The invention discloses a special bolt hole processing tool for a spring clamp for a garage door, which is applied to the technical field of spring clamp bolt processing tooling, and comprises a base plate and a bolt hole processing tooling detection system, wherein two groups of processing components are arranged above the base plate, the processing components are respectively arranged on two sides of the base plate, a mounting component is arranged in the middle of the base plate, the spring clamp is clamped by the mounting component, and then the bolt hole is processed by the processing component, each group of the slide rails is slidably connected with a push plate, a sliding connection between the slide rails and the push plate is provided with a moving drive, a mounting frame is fixed on the push plate, a limiting plate is fixed on the end of the insertion rod, the limiting plate contacts the inner wall of the spring clamp, a pressure sensor is fixed on one side of the limiting plate, a connecting seat is fixed in the middle of the bearing plate, and cameras are fixed on both sides of the connecting seat. The invention has the characteristic of being able to automatically judge the strength of the processed spring clamp during processing.