34results about How to "Improve quality management level" patented technology

The invention relates to a device and a method for acquiring product coded identifier information. The device comprises a data acquisition unit, a data identification unit and a control unit, wherein the data acquisition unit is positioned above a convey belt and comprises an image device, a lighting device and a position photoelectric switch; the image device is used for photographing product coded identifier to obtain image data; the lighting device is used for irradiating the product coded identifier; the position photoelectric switch is used for sensing the position of the product on the convey belt; the data identification unit is used for identifying and processing the image data acquired by the data acquisition unit to obtain the product coded identifier information and storing the information and is also connected with the image device and the control unit respectively through a data line; and the control unit is used for controlling the data acquisition unit, and connected with the data identification unit, the image device, the lighting device and the position photoelectric switch respectively through data lines. The invention also provides the method for acquiring the product coded identifier information.

The invention discloses a method for computing harmonic impedance of a system based on maximum likelihood estimation theory. The method is characterized by comprising the following steps: collecting bus voltage instantaneous value of common coupling point and current instantaneous value of user access system, and establishing a relation between harmonic voltage phasor and harmonic current phasor; on the basis of defining a complex covariance, deriving to obtain a probability density function of unary complex normal distribution so as to obtain a maximum likelihood estimation function; establishing the maximum likelihood estimation theory of complex field estimated by the harmonic impedance of system; utilizing an extreme value theory to solve the maximum likelihood estimation function so as to obtain the estimated value of harmonic impedance of the system finally. The method has the beneficial effects that the method for computing harmonic impedance of the system based on maximum likelihood estimation theory is capable of relatively accurately computing equivalent harmonic impedance of the system and has important meanings for further solving the problem of harmonic pollution and improving the management level of electric energy quality.

The invention relates to a collection method of bar code information data of a product. The method comprises the following steps of: irradiating a bar code of the product by a light source; reading and collecting the bar code by utilizing a bar code reader to obtain and store the bar code information data, wherein a light filter is arranged in front of a scanner window of the bar code reader; and the bar code is a one-dimensional bar code and/or a two-dimensional bar code which are/is obtained by fluorescent ink in a spray printing way. With the adoption of the method provided by the invention, the rapid and accurate reading and collection of the bar code which is printed on the product by the fluorescent ink can be realized; the reading and collection rate is high and the reading effect is good, thereby realizing the reading and the collection of post-relevant type product information and solving the problems including misreading, incorrect reading and the like which are caused by an insufficient color contrast ratio between the bar code and a substrate; therefore, the quality management level of enterprises can be greatly improved, complicated artificial recording work in the quality management is greatly alleviated, the management flow of the enterprises is optimized and the informatization level of the enterprises is promoted.

The invention relates to the technical field of quality control learning systems, and discloses a cigarette product quality defect prevention and control learning system and method based on big data, and the system comprises a data collection unit, a data processing unit, a data storage unit, and a learning unit. The data acquisition unit comprises a camera; the data processing unit comprises a first processor, the first processor is provided with an analysis system, and the analysis system comprises an image processing unit and a data analysis unit; the learning unit comprises a second processor, the second processor is electrically connected with a first display, a voice playing module and a first control module, and the second processor is provided with a multimedia interface. According to the method, the problems of cigarette physical quality, appearance defects and the like on the cigarette production line can be automatically collected, reasons and solutions are analyzed, a cigarette product quality defect prevention and control learning database is formed for workers to learn, and the service capacity of the workers is improved.

The invention relates to a concrete quality tracking method and system. The system comprises a first electronic tag, a second electronic tag, a third electronic tag, an electronic tag reader, a positioning device and a server, The server comprises an information management module and a path calculation module; The path calculation module is used for determining a concrete pouring area in the concrete transport vehicle; And the information management module associates the concrete pouring area information with the test block information, and associates the concrete test block detection report information with the concrete test block information. The invention provides a concrete quality tracking method and system. According to the invention, information association of concrete information,vehicle transportation information, concrete test block information, concrete test block detection report information, concrete pump truck information and concrete pouring area information can be realized through an informatization means, and whole-process tracking of concrete quality is realized, so that the quality of an engineering construction project is guaranteed.

The invention discloses a large-scale public building operation quality management system and method based on PDCA and a target decomposition method. The system comprises a target plan making module (10) running on a server, and a plan implementation module (20), an operation management quality effect inspection module (30) and a problem processing and improving module (40) running on a client. The plan implementation module (20), the operation management quality effect inspection module (30) and the problem processing and improving module (40) communicate with the server. The management method comprises the steps of data and information collection, data analysis, cause analysis, quality improvement plan and measure making, plan and measure implementation, implementation result inspection,inspection result summary and processing improvement. Compared with the methods in the prior art, the beneficial effects are that the quality management workflow is smoothened by standardizing the large-scale public building operation management system and method, and the building operation quality management level is improved.

The invention provides a semiconductor process method, which comprises the following steps of 1) providing a background plate, and forming a rectangle on the background plate by using a positioning mark point, 2) placing the wafer in the rectangle of the positioning mark point with the back face upward, and photographing to obtain an ellipse-like wafer picture and the positioning mark point, 3) editing the picture, and marking the positions corresponding to the edge gaps and the defects of the wafer, 4) finding out wafer edges, defects, edge gaps and positioning mark points on the picture, (5) transforming the positioning mark points into rectangles with the same size as the rectangles in the step 1), 6) transforming the defect and the edge gap back to the position of the back of the original wafer, and reconstructing the depth distortion of the picture, 7) performing mirror surface overturning on the wafer, and 8) superposing the front defect position and the back defect position of the wafer to identify the chip with at least one of the front defect and the back defect. The defect of the back surface of the wafer can be accurately reflected to the front surface of the wafer, so that all defective chips can be accurately detected.

The invention relates to an electrical product appearance defect detection method based on network collaboration. In electrical product appearance detection, a man-machine cooperation technology is utilized to collect detection samples, a deep learning mechanism is superposed to dynamically optimize an electrical appliance appearance detection model, and finally an electrical appliance appearance detection model expert database is formed. At present, a traditional appearance detection system in the electric appliance industry is high in requirement and can be operated by professionally trained personnel, and the system adopts detection data automatic learning, realizes an intelligent quality management analysis system, realizes detection standardization, reduces the influence of human factors on a detection result, improves the quality management level, reduces personnel deployment, and saves the production cost.

The invention relates to box-shaped object unpacking equipment and an unpacking method thereof. The box-shaped object unpacking equipment comprises a working table, a mold box, a cover turning device, an aluminum paper pulling piece dismantling device, an aluminum paper stretching device and an extruding device, and the mold box is arranged on the working table; and the cover turning device, the aluminum paper pulling piece dismantling device, the aluminum paper stretching device and the extruding device are sequentially arranged in the moving direction of the workbench and correspond to the mold box. The box-shaped object unpacking equipment has the beneficial effects that the equipment can detect the appearance quality in a box while disassembling the box, is simple in structure, can detect the quality of contents in a box-shaped object while automatically disassembling a cigarette packet, achieves multiple purposes, and fills the technical blank of related equipment.

The invention discloses a part tracing system for a communication product assembly line, and the invention comprises a part tracing system which comprises a product information unit, an information recording unit, a development platform, a product information storage unit, a product coding unit, a product label unit, a label printing unit, a label scanning unit, and a data management unit. The output end of the product information unit is connected with the input end of the information recording unit. The invention relates to the technical field of communication product. According to the parttracing system of the communication product assembly line, recording is conducted according to material batch information in the product production process, a product code is given; when a product isoffline, a finished product label is given, and the material batch information used in the production process can be traced by scanning the finished product label; by using the whole process quality tracing system, the invention can achieve the quick and accurate tracing of the quality of the remanufactured product, improves the accuracy and efficiency of the quality tracing of the manufactured product, and improves the quality management level of the manufactured product of an enterprise.

The invention relates to a quality detection and supervision method and system. The method comprises the steps of classifying the common materials used for power network construction and operation according to the importance degree; establishing a variety of different forms of material quality supervision, and different levels of material quality supervision methods and sequences, wherein the material quality supervision forms include supplier inspection, sample testing, arrival inspection, periodic sampling, special sampling. The invention is conducive to comprehensive and high-efficient supervision and management, and ensures the intrinsic safety of power grid materials and the stable operation of the power grid.

The invention discloses a garment manufacturing method based on the industrial two-dimensional code technology, and mainly relates to the field of garment processing. The method comprises the steps ofcollecting a fabric two-dimensional code with fabric information and defect information, fixing the fabric two-dimensional code on a fabric, comparing the fabric two-dimensional code with a cutting system in a cutting stage to realize automatic positioning of defective cutting parts, summarizing the information of the fabric two-dimensional code into ready-made clothes two-dimensional code information, and printing and fixing the fabric two-dimensional code information on the inner side of ready-made clothes. The method has the beneficial effects that management and recording are carried outbased on a two-dimensional code technology in the whole process from incoming materials to ready-made clothes, so that the two-dimensional code on the ready-made clothes can realize whole process andraw material tracing, and the quality control level is improved.

The invention discloses a traceable QFN bracket structure and a design method and relates to the technical field of QFN package to solve the problem that a conventional QFN bracket has no marks and the position of a single bracket on the entire bracket cannot be determined so as to cause a difficulty in tracing defective products and determining the causes of the defects. The traceable QFN bracketstructure include a bracket bar, which includes a plurality of brackets, wherein each bracket is provided with an etched mark, and the brackets on the bracket bar have different etched marks. The traceable QFN bracket structure can distinguish and display the position of a single bracket on the entire bracket bar, so as to trace the defective products and research the causes of the defects, thereby improving the quality management level.

The invention discloses a software defect detection rule grading and combining strategy method for a large complex information system. The method comprises the following steps: (1) mapping, screeningand customizing detection rules, promoting software code compliance, and screening code defect detection Klockwork tool built-in rules to form a mapping corresponding relationship between programmingspecifications and the Klockwork tool built-in rules; (2) grading and classifying detection rules; implementing resilient management, wherein a special code defect detection rule set for large complexinformation system software is divided into security vulnerabilities and programming styles, on the basis, rule grading and rule combination strategies are determined in combination with developmentcharacteristics of executed projects, and management of detection rules in the research and development process of the large complex information system is standardized according to rule selection requirements in the project life cycle. (1) the code quality management level is improved, and the code defect density in the enterprise research and development process is effectively controlled; takinga certain project as an example, the code defect density is quickly reduced to 1.5 from 7 per thousand rows in the early stage and is reduced to 1.0 in the later stage, so that the code quality is remarkably improved.

The invention relates to finished cigarette comprehensive quality detection equipment which comprises a mounting table, and one or more of a cigarette length detection device, a cigarette circumference detection device, a cigarette suction resistance detection device, a cigarette weight detection device and a cigarette ventilation rate detection device are arranged on the mounting table. And the mounting table is connected with a cigarette packet disassembling device and/or connected with a cigarette inlet for directly placing cigarettes. The detection equipment has the beneficial effects that the comprehensive quality detection result of the finished cigarette is quantified, the data is comprehensive, the detection data is automatically stored, the computer can analyze the comprehensive quality of the cigarette, the problem of the quality defect of the cigarette is quickly found, and the quality management level is improved. By using the equipment, the stability of the cigarette quality can be ensured; the labor cost of an enterprise can be effectively reduced; the management difficulty is reduced, standardized operation is achieved, and intelligent manufacturing of the tobacco industry is achieved.

The invention relates to a welding production quality control system, in particular to a central control system for hardfacing production. The system comprises a headquarters monitoring center and a base website, wherein the headquarters monitoring center is provided with a headquarters computer, a display, a printer and an alarm device, wherein the display, the printer and the alarm device are connected to the headquarters computer, the base website comprises a plurality of station data acquisition devices, a wireless base station, a router, a base computer, a display, a printer and an alarm device, wherein the plurality of station data acquisition devices are connected to the wireless base station through WiFi, the wireless base station is connected to the base computer through the router, and the base computer is connected to the headquarter computer through the Internet. Surfacing parameters of surfacing production stations can be automatically collected and analyzed in real time, remote monitoring is achieved, and the quality management level of enterprises and the quality of surfacing products are greatly improved.