30results about How to "Improve grading accuracy" patented technology

The invention discloses a method and a device for computer visual inspection classification of the quality of fresh corn ears, which aim to solve the problem that an artificial classification method makes the accuracy and the reproducibility of classification generated adverse effects. The method comprises the following steps of: 1, under a certain illumination condition, acquiring images of the fresh corn ears passing through a place right below a camera by an image acquisition device, and transmitting the images to a main control computer; 2, according to the acquired images of the fresh corn ears, performing image analysis by the main control computer through intelligent analysis software through the steps of: partitioning backgrounds of the images of the fresh corn ears by adopting an iteration-replacement method, and then extracting characteristics as quality indexes of the fresh corn ears on the basis of the images obtained after the background partitioning of the images of the fresh corn ears; and 3, on the basis of the quality indexes, which are acquired through the image analysis, of the fresh corn ears, and according to a grading standard that the fresh corn ears are classified into three grades, performing grade estimation on the fresh corn ears by using a fuzzy neural network. The invention also provides a detection device for implementing the method.

The invention relates to a multi-channel detection and sorting device of shriveled walnuts. The multi-channel detection and sorting device is composed of a feeding device, a conveying device, an online imaging detection device, an online weighing device, a speed reduction device, an airflow type grading device and a rack. Single-grain feeding is carried out simultaneously on a plurality of channels through the feeding device; the online imaging detection device is mounted above a feeding conveyor belt and walnut image information is acquired in real time; walnut quality information is acquiredin real time through the online weighing device; whether walnuts are the shriveled walnuts or not is judged through a method fusing the walnut image information and the walnut quality information; finally, the shriveled walnuts are removed by utilizing the airflow type grading device. Compared with the prior art, the multi-channel detection and sorting device can realize multi-channel online detection and sorting of the shriveled walnuts, and the commodity quality and market price of the walnuts can be improved, the labor intensity of manually sorting the shriveled walnuts is reduced and theeconomic benefits are improved.

The invention relates to a method for grading skinned pig half carcass, in particular to a method for grading skinned pig half carcass in three-way cross pigs. The method for grading pig carcass with good grading effect is not available at present. The method comprises the following procedures: selecting and preparing carcass, and the invention is characterized in that the method further comprises the following procedures: weighing carcass and fat, measuring flesh, measuring tail fat and grading carcass, wherein, in the procedure of selecting and preparing carcass, the weight grade index table is inquired by the weight value to acquire the weight grade, the back fat thickness grade index table is inquired by the back fat thickness value to acquire the back fat thickness grade, and the weight and fat thickness matrix table is inquired by the weight grade and the back fat thickness grade to acquire the weight-fat thickness value; in the procedure of measuring flesh, the flesh plumpness index table is inquired by the plumpness to acquire the flesh plumpness value; and in the procedure of measuring tail fat, the tail fat plumpness index table is inquired by the tail fat plumpness to acquire the tail fat plumpness value. The invention has the advantages of convenient gradation, simple procedures, low gradation cost, good effect, high accuracy and broad market outlook.

The invention discloses a dynamic alarm grading method and device, electronic equipment and a computer readable storage medium. The method comprises the following steps: training a sorting model by using historical data of alarms to obtain a training model; and sorting the online data of the alarms by using the training model to obtain alarm grades. According to the method, a dynamic alarm gradingproblem is modeled into a sorting problem based on machine learning for the first time, alarm severity grading is given in an online and self-adaptive mode based on a training model, grading accuracyis high, and therefore engineers can process serious alarms preferentially according to alarm grading, and fault solving efficiency is improved.

The invention discloses a surrounding rock distinguishing and grading method. The method comprises the following steps: S0, performing data conversion on Rc and Jv to obtain converted R'c and J'v; S1, by utilizing the converted R'c, J'v, S1, S2 and S3, carrying out factor analysis to obtain comprehensive factors F'1 and F'2, wherein the comprehensive factor F '1 is a surrounding rock integrity comprehensive factor and mainly reflects the influence of Jv and S1 factors, and the comprehensive factor F'2 is a surrounding rock strength comprehensive factor and mainly reflects the influence of Rc and S2 factors; S2, taking the comprehensive factors F'1 and F'2 as training samples to train a surrounding rock grading model to obtain a Fisher discrimination model; and S3, performing surrounding rock grade prediction on the test sample by using the Fisher discriminant model, thereby solving the problem of low accuracy when the Fisher discriminant model is verified by using a back substitution method due to the fact that influence factors are not preprocessed. The surrounding rock discriminant grading method is high in accuracy and wide in applicability.

The invention relates to graded screening equipment for stone used in highway construction, in particular to a single-grade stone fine screening mechanism. According to a technical proposal provided by the invention, the upper part of a machine frame is provided with an inclined upper screen grader, an inclined lower screen grader is arranged on the machine frame under the upper screen grader, and the discharging port of the upper screen grader is communicated with the feed port of the lower screen grader. The single-grade stone fine screening mechanism is characterized in that: both the inside of the upper screen grader and the inside of the lower screen grader comprise two layers of screen mesh; the position of the mesh upper outlet of each layer of the screen mesh is provided with a stone outlet; and the mesh lower outlets of the upper-layer screen meshes in the upper screen grader and the lower screen grader are the inlets of the lower-layer screen meshes. The graded screening equipment can finely grade the stone and improve the quality of constructed pavement.

The invention relates to a three-degree-of-freedom tractor for an agricultural laser grader. It consists of a front tractor and a rear tractor. The front-end tractor is connected with the rear-end tractor with a hinge pin and a spacer sleeve. The front tractor is composed of a traction plate, a traction longitudinal plate and a limiting plate. The front part of the traction plate of the front-end tractor is inserted into the tractor traction frame, and the pin shaft passes through the traction frame and the traction plate, so that the front-end tractor is connected with the tractor. The small shaft diameter section of the rear tractor is inserted into the front plate of the traction frame of the motor grader and fixed by welding. When the tractor pulls the grader to turn, the front traction plate rotates around the tractor pin shaft; when the tractor pitches longitudinally or the grader adjusts the blade height, under the action of the ground wheel control device of the grader, the rear tractor revolves around the front tractor The connected pin shaft rotates; when the tractor swings laterally or the grader adjusts the cutting edge parallel to the laser reference plane, under the action of the left and right ground wheel control devices of the grader, the grader rotates around the front and rear tractors through the traction screw .

The invention belongs to the technical field of asphalt pavement cold recycling, and particularly relates to a grading method of a cold recycled mixture. The production method comprises the followingspecific production steps: milling an asphalt concrete surface layer, crushing and screening through a crushing and screening device to obtain milled materials with the specifications of 0-10mm and 10-30mm, and mixing the milled materials according to a certain proportion; metering the milling material prepared in the previous step through a milling material metering and conveying device, and thenconveying the milling material to a mixing device; respectively metering the new aggregate, cement, mineral powder, emulsified asphalt and water through a metering and conveying device, and conveyingthe metered materials to a mixing device. The mixing device is used for stirring the mixture, then the finished mixture is discharged to the storage bin through the discharging port of the mixing device to be temporarily stored, anti-segregation measures of the mixture are taken in the storage period, evaporation of water is prevented, and the production efficiency of the cold recycled mixture can be effectively improved by adopting the method.