36results about How to "Avoid Design Mistakes" patented technology

Scan chains to support debugging and manufacturing test modes for integrated circuit chips are made adaptable. Scan chains may be configured either in a multiple scan chain JTAG mode or in a multiple independent and parallel scan chain mode. The configuration transition between the scan modes is made by private instructions implemented in a JTAG controller, which supports the IEEE 1149.1 standard.

The invention provides a shipbuilding man-machine engineering simulation evaluation method and a system. The method comprises that S1. the product data, tool data, building resource data, virtual human data and technological requirements which the shipbuilding technology relates to are input, and a environment of shipbuilding man-machine engineering simulation evaluation is established; S2.according to the input technological requirements, the processes of shipbuilding technology is simulated and the critical technological processes of shipbuilding are screened out; S3.the critical technological processes of shipbuilding screened out is performed the virtual human operation simulation; S4.the virtual operation of the virtual human is performed a man-machine engineering evaluation and a result of man-machine engineering evaluation is acquired; and S5.judging if the result of man-machine engineering evaluation reaches the standard, if the result reaches the standard, the result of shipbuilding man-machine engineering simulation which the result of man-machine engineering evaluation that reaches the standard corresponds to are output, if the result does not reach the standard, go back to the step 2. The shipbuilding man-machine engineering simulation evaluation method has the advantages of achieving man-machine engineering simulation and analysis and evaluation for the shipbuilding technology at design stage and avoiding the design mistake.

The invention provides a circuit board schematic diagram design method and device, electronic equipment and a storage medium. The method comprises the steps of receiving input design scheme data; according to the component library, calling a schematic diagram design model to analyze the design scheme data, and outputting a circuit board schematic diagram corresponding to the design scheme data; wherein the schematic diagram design model is obtained by training through a deep learning algorithm; the method comprises the following steps: automatically analyzing received design scheme data by utilizing a schematic diagram design model obtained by training a deep learning algorithm, and automatically obtaining a circuit board schematic diagram corresponding to the design scheme data input by auser according to related component design data obtained from a component library; the automatic design of the schematic diagram of the circuit board is realized, the design efficiency of the schematic diagram of the circuit board is improved, and the whole design process does not need manual participation, so that design errors caused by human factors are avoided, and the design reliability of the schematic diagram of the circuit board is improved.

The invention belongs to the field of steel heat treatment, and more specifically relates to a tempering technology of G18CrMo2-6 steel. The tempering technology is capable of solving a problem that impact toughness of G18CrMo2-6 steel is poor, and changes under different tempering treatment conditions. The tempering technology comprises following specific steps: 1) the G18CrMo2-6 steel after normalizing heat treatment is heated to a temperature smaller than Ac1 at a certain heating speed, and is subjected to tempering treatment after different heat preservation periods; and then charpy V-notch impact test is performed so as to obtain test data; 2) the test data is input into a tempering parameter formula for calculation, and a tempering parameter-impact value corresponding curve is drawn; and 3) a reasonable heat treatment technology is determined based on the optimum value in the tempering parameter curve. According to the tempering technology, the heat treatment technology is determined based on the tempering parameter formula of G18CrMo2-6 steel, so that design errors are avoided, the design of the tempering technology is more reasonable, and designed results are scientific and standard.

The invention belongs to the technical field of buildings, and particularly relates to a modular building design method based on BIM technology, which comprises the following steps of S1, field investigation, S2, scheme preparation, S3, component splitting and deepening design, S4, collision inspection, S5, automatic quantity calculation, S6, component production and S7, field construction. According to the method, fine management of the whole life cycle of design, production and on-site construction of the modular building is achieved through the BIM technology, organic combination of the front-end design concept and rear-end production and construction factors is achieved, design errors caused by front-back disjunction are avoided, and design efficiency and design quality are greatly improved.

The invention relates to a simulation system for equipment design. The simulation system comprises hardware equipment and a software system, wherein the software system comprises a virtual reality editor and a VRP-IE (Virtual Reality Platform Internet Explorer) used for converting a three-dimensional file into a file capable of being browsed in an internet explorer; the hardware equipment comprises a processing system, a three-dimensional display system and an interactive device. The contributions of the simulation system for the equipment design provided by the invention lie in that the simulation system can help to realize the design and release of products and realize the evaluation and audit of design; help designers to modify design proposals timely and conveniently; save the research and development cost and accelerate the research and development speed; realize interaction between virtual scenes and users; go deep into the interiors of products to carefully observe the structures of the products and can realize the functions like virtual assemblies of products, internet release of products, etc. and reduce the wasting of resources and research and development cycle of enterprises in the process of equipment design to the maximum extent.

The invention discloses a numerically controlled bending automatic matching method and system. The method comprises the following stepsof S1, establishing a bending standard library; S2, drawing a part in a three-dimensional design platform, acquiring the bending characteristic parameters of the part, and examining whether machining is feasible or not according to whether the bending characteristic parameters of the part are matched with the bending standard library or not; and S3, issuing a part drawing feasible to machine, calling the bending standard library to match a tool automatically according to the bending characteristic parameters of the part to generate a bending CNC program and/or a bending guiding video. The method provided by the invention can achieve numerically controlled bending automatic matching mold programming and outputs the bending guiding video, so that the production efficiency is improved effectively.

The invention discloses a method for creating and retrieving knowledge points of circuit components based on character strings, which comprises the following steps: selecting image information of an object circuit diagram; binarizing the image;through transforming the image; extracting components and component pins from the image; the extracted components are subjected to standardized rotation treatment; carrying out graphic digitization on the components to obtain a unique string corresponding to the components; the unique character string and the corresponding text comment information of thecomponent are used as labels of the screenshot information of the component, and the labels are stored in the knowledge point database together with the screenshot information of the component. The knowledge point database is retrieved by using string as parameter, and the corresponding screenshot information and text comment information of the components and devices are obtained. The invention searches the design error point comment information and the connection error screenshot information of the components corresponding to the string in the knowledge point database in the form of string,and the retrieval result appears in real time, and the effect is very ideal.

The invention provides a ship structure review submission and withdrawal management system and method and a computer readable storage medium, and the system comprises a management end which is used for receiving a three-dimensional model of a ship structure sent by a design end, lightening the three-dimensional model of the ship structure and making the same into a review submission work package, and submitting the review submission work package to a review end for review in a system; the review end used for receiving the review submission, displaying the three-dimensional model of the ship structure in the review submission work package, feeding back a review withdrawal opinion of the designer to the three-dimensional model of the ship structure, and generating a review withdrawal work package. The design end is used for positioning a problem part of the associated three-dimensional model in the modification opinion of the review end to the three-dimensional model of the original review submission design, automatically generating a review withdrawal problem list, modifying the review withdrawal opinion to a three-dimensional review submission model of a new version, and regenerating a new review submission version after the internal approval process is completed. The method is used for solving the problems existing in the ship structure review submission and withdrawal process based on the three-dimensional model.

The invention relates to the technical field of Revit platform building design, in particular to a basement comprehensive pipe gallery route planning method and device based on a Revit platform. According to the technical scheme, the method is characterized in that a building model is read through a Revit platform; a pipe gallery module family is manufactured based on the building model, and features in the building model are recognized; the method also includes automatically arranging a pipe gallery route in the building model according to the module calling rule and the connection rule. According to the steps, a planning device is correspondingly provided and comprises a model reading module, a pipe gallery manufacturing module, a calling rule setting module, a pipe gallery arrangement module, a connection rule setting module, a pipe gallery recognition module, a route generation module and a pipe gallery editing module. The invention has the advantages of high applicability, high accuracy, high efficiency and high flexibility.

The invention relates to the technical field of rain sewage treatment, and discloses a sponge city rain sewage treatment construction and operation and maintenance method based on a BIM technology, and the method comprises the following steps: 1, determining the range and surrounding environment of a construction site of a sponge city needing to be constructed, and carrying out the modeling of the surrounding environment of the construction site; and 2, determining a sponge city construction drawing according to the construction site, and carrying out modeling according to the drawing. According to the sponge city rain and sewage treatment construction and operation and maintenance method based on the BIM technology, a sponge city model is established, a designed scheme can be simulated, design is deepened, a sponge city needing to be established is vividly displayed, a worker can modify the model of the sponge city only by modifying related parameters, the time for workers to draw pictures repeatedly is saved, design errors and construction rework can be effectively avoided, and the efficiency of sponge city construction is improved.

The invention discloses a method for verifying an engine model in an off-line way. The method comprises that: an execution timing sequence is defined for each control function module according to a practical control requirement of an engine; a metering trigger condition is arranged for the function module; and a control module execution sequence is controlled via arranging a task scheduling state machine, and the task scheduling state machine confirms verification execution sequences of the control modules of the engine according to the execution timing sequences of the control modules of the engine and input and output sequences between the control modules of the engine. The method for verifying the engine model in the off-line way conforms to practical execution codes of all the control modules of the engine so that the engine model can be accurately verified in the off-line way by the method, deviation in results caused by existing methods for verifying the engine model in the off-line way can be avoided, and subsequent design errors can be avoided.

A frictional transmission apparatus comprising a simple planetary roller mechanism and a brake mechanism, the simple planetary roller mechanism having friction rollers including a sun roller, a planetary roller, and a ring roller. Static friction torque Y obtainable from the brake mechanism is set to set to satisfy Y F16H 13/06 F16H 13/08 9 18 1 2000/12/4 1554877 2004/12/15 000000000 Sumitomo Heavy Industries Japan Tamenaga Jun Minegishi Kiyoji zeng xiangling 72001 The Company Ltd. of the Chinese Patent Agency (Hong Kong) Zi Building 22, Yingjun Centre, No.23, Gangwan Road, Hong Kong Wanzi Japan 1999/12/3 344887/99 Japan 1999/12/3 344888/99 Japan 1999/12/3 345243/99

The invention discloses a full-automatic slagging-off machine which comprises a rotary base, a support, a driving device, a telescopic arm, a slagging-off piece and a protection device, the protection device comprises a protection plate installed on the rotary base, the protection plate is located on the front side of the support, and a receding hole for the telescopic arm to pass through is formed in the protection plate. Through cooperation of the rotary base, the lifting telescopic rod, the swing telescopic rod, the chain wheel and the chain, the defect that the slagging-off head is difficult to work continuously due to design errors or deviation generated after movement can be avoided, full-automatic and multi-angle slagging-off work can be achieved, and the slagging-off head is very convenient to use; meanwhile, the distance sensors installed on the two sides of the protection plate are used for detecting the distance between the surrounding operators and the protection plate, the rotary base and the chain wheel winding drum are braked emergently, the operators are prevented from being hurt, and safety is improved.