1100 results about "Computer control" patented technology

The invention discloses a device for measuring flowability of explosive modeling powder, which comprises a step-press-loading analogue unit, a timing and weighing unit and a computer control unit, wherein the step-press-loading analogue unit directly and indirectly drives a screw rod which extends into a blanking bin to rotate and perform reciprocating movements along an axial line and drives a pusher dog in the blanking bin to perform the reciprocating movements along an arc section through the combined action of a cylinder and a pneumatic reversal valve so as to ensure that the explosive modeling powder in the blanking bin falls into the timing and weighing unit, and the process more truly imitates an explosive conveying process of an explosive step-press process. The timing and weighing unit transmits a weighing value of the explosive modeling powder which falls in the timing and weighing unit to the computer control unit in real time, and the computer control unit calculates the instantaneous flow speed of the explosive modeling powder of a north side and generates a flow speed-time curve according to sampling data. The device can measure the flowability of the explosive modeling powder so as to provide an objective basis for choosing a proper explosive step-press process for the explosive modeling powder.

System for packing and sorting comprises: a server comprising a memory, a processor, and a sortation engine, an automated packaging device, and a packaging sorting system. The automated packaging device is configured to: receive one or more sorted articles through an opening of a repository of the automated packaging device, and seal the repository to form a package. The package sorting system configured to: direct a package computer controlled vehicle to move to a receiving position about the automated packaging device for receiving the package from the automated packaging device, and direct the package computer controlled vehicle to transport and deposit the received package into a package receptacle.

The invention belongs to the field of atmospheric environment particulate matter monitoring, and particularly relates to an atmospheric environment salt mist concentration real-time monitoring device and method. The monitoring device comprises a computer control module, a container and a buoy, a conductivity electrode, a temperature sensor, a displacement sensor, an air inlet pipe and an air outlet pipe are integrated on the top of the container, and the air outlet pipe is connected with a reciprocating cylinder with a piston and a limit switch. The monitoring method comprises the following steps: calibrating the initial volume V < initial > of liquid and the volume V < initial > of a reciprocating cylinder; circularly collecting the conductivity k0 and k1, the temperature T0 and T1 and the displacement D and Dtotal of the buoy before and after ventilation; correcting the salt mass increment delta M through the dynamic volume, and finally outputting the salt mist concentration C; according to the invention, the defects of inaccurate ventilation volume metering, solution density change and interference of moisture in high-humidity air on concentration monitoring in the prior art are overcome, full-automatic continuous monitoring of the salt mist concentration is realized, the measurement error is effectively reduced, the measurement precision and the monitoring capability are remarkably improved, and the method has relatively good environmental adaptability.

The invention relates to the technical field of textile detection, in particular to a computer-aided textile color fastness prediction method, which comprises the following steps: acquiring multi-source data before and after a textile color fastness test through computer control equipment, including digital images, reflection spectrum data, process parameters and dye characteristic component data, carrying out pretreatment; extracting color difference features and spectrum similarity features, and screening by adopting a dimension reduction algorithm to form a core feature vector; a machine learning algorithm is adopted to construct a color fastness prediction model, parameters are optimized in combination with cross validation and an early stop mechanism, model fine tuning is executed, and a final optimization model is obtained; and outputting a color fastness grade prediction result, and carrying out spectrum similarity secondary verification. According to the method, objective, efficient and high-precision prediction of the color fastness grade of the textile is realized, and the problems of high subjectivity and low efficiency of traditional manual evaluation are solved.

The invention relates to the technical field of hydraulic machine oil cylinder assembling, in particular to an automatic oil cylinder assembling control system and an assembling process. Comprising an assembling platform, a clamping mechanism, a mounting mechanism, a visual monitoring system and an upper computer, the upper computer controls the clamping mechanism, the mounting mechanism and the visual monitoring system, through cooperation of all the mechanisms and a monitoring module, an oil cylinder is moved from one end of the assembling platform to the other end of the assembling platform, all parts are assembled in the moving process, and the assembling process is completed. The purpose of automatically installing the oil cylinder is achieved, the whole installation process can be monitored, and the purposes of reducing the number of reworking times, improving efficiency and improving the quality of the oil cylinder are achieved.

The invention discloses a radiotherapy laser positioning system and method, the system comprises at least three laser lamp systems, corresponding optical cameras and a computer control system, the laser lamp systems form cross cursors through two linear emitters installed in a T shape, the cross cursors are respectively arranged on the left side, the right side and the upper side of a treatment device, and a three-dimensional space positioning coordinate system is constructed. The optical camera automatically collects images of the body surface mark points of the patient and the laser cursor, and the computer control system carries out image processing, feature extraction and three-dimensional deviation calculation and feeds back deviation information to the treatment bed or the laser lamp system; and the electric control system drives the fine adjustment mechanism to perform three-degree-of-freedom accurate adjustment of translation, rotation and inclination until the mark point coincides with the cursor. According to the invention, optical automatic identification is adopted to replace manual naked eye positioning, personal errors are eliminated, rapid and automatic correction is realized, and the accuracy and efficiency of radiotherapy positioning are significantly improved.

The invention relates to the technical field of photoelectric detection, and particularly discloses a three-dimensional defect detection method and system based on compound color stripe projection, and the method comprises an upper computer control and processing module which is used for generating a compound color stripe pattern coded with phase difference information, and coordinating and controlling the synchronous operation of the whole system; the structured light projection module is used for receiving the composite color stripe pattern and projecting the composite color stripe pattern to the surface of a measured object at one time; the imaging module is used for receiving the composite colored light reflected after being modulated by the surface of the measured object and separating the composite colored light into monochromatic light signals with different colors for synchronous acquisition; the imaging module further comprises an active highlight suppression unit which is used for dynamically adjusting the polarization direction according to an instruction of the upper computer control and processing module so as to suppress highlight caused by specular reflection. Multiple groups of sine fringes with fixed phase differences are projected to the surface of a measured object at one time. And a plurality of deformed fringe patterns with phase displacement can be synchronously acquired under single exposure.

The invention belongs to the technical field of bionic robots, and particularly relates to a multi-mode movement worm-imitating robot based on a paper folding structure. The worm-imitating robot adopts a modular design and comprises a functional module, eight wriggling modules and two rolling modules, main bodies of the functional module and the wriggling module are both of paper folding structures; each wriggling module has the bending deformation capacity in the axial direction and the eighth direction and can be anchored with the movement environment; a gripper of the functional module is used for gripping objects with different shapes and hardness, and is provided with a micro camera for environment detection; the rolling module has a rolling action capability; the robot is driven in a pneumatic mode and a shape memory alloy mode, and actuation is rapid and accurate; the upper computer controls all the function modules through wireless signals, and remote control over the robot can be achieved. According to the worm-imitating robot, machining simplification and overall light weight are achieved, and the deformability is greatly improved.

The invention provides a laser marking system and method for metal surface dazzling and coloring, and relates to the technical field of metal surface laser precision machining.The system integrates a femtosecond laser, a nanosecond laser, an optical bread board, a lifting platform, an electric rotating slide, a scanning galvanometer, a focusing lens, a computer control system and an adsorption platform; two laser marking processes of colorful marking and coloring marking are innovatively combined; the femtosecond laser device achieves a colorful effect on the metal surface through ultrashort pulses, and the nanosecond laser device generates a colorful effect of various colors through the heat effect. Automatic switching of the two lasers is controlled through the lifting platform, the computer automatically recognizes the drawing and document process type, and multi-color-zone pattern marking is efficiently completed. The system is simple in structure and convenient to operate, can meet the high-precision double-process marking requirement of the metal surface, and is widely applied to the fields of consumer electronics, anti-counterfeiting technologies and the like.

The invention provides an experimental device and method for simulating gas invasion well control of a complex karst cave type stratum. The device comprises a well drilling simulation system, a liquid-gas simulation system and a computer control system. The computer control system simulates an overflow and leakage coexistence scene by adjusting the well drilling simulation system and the liquid-gas simulation system, and in actual well drilling, if overflow and leakage occur, corresponding well drilling parameters can be collected according to overflow signals generated by actual well drilling; and corresponding control instructions and control parameters are output through the drilling parameters and the overflow and leakage control strategy, and the treatment effect and treatment efficiency of overflow and leakage coexistence are improved.

The invention relates to the technical field of audio equipment testing, and discloses a parallel burning and Bluetooth testing frequency calibration method of a special chip for audio equipment. The method comprises the following steps of: establishing an independent serial communication channel with a plurality of chip chips through a computer control unit, and synchronously transmitting a firmware data packet to each chip storage unit; the high-precision radio frequency detection device is started to scan Bluetooth signal frequency offset values of all chips, and detection data is fed back to the computer control unit in real time; screening unqualified chips according to a preset frequency offset threshold, starting a dynamic frequency calibration program for the unqualified chips, and modifying internal capacitance parameters of the chips through a serial communication channel; repeatedly executing the frequency offset detection and capacitance parameter adjustment step until the frequency offset values of all the chips reach a standard range; and after completing the frequency offset calibration, executing a multi-channel Bluetooth performance test and outputting a test result report. According to the method, the chip firmware burning and Bluetooth test frequency calibration efficiency can be improved, the chip performance is guaranteed, and the method is adaptive to the batch production requirement.

The invention discloses a method for rapidly detecting OverHang of a positive electrode and a negative electrode of a laminated battery, and relates to the technical field of laminated battery detection.The method comprises the steps that a micro-focus X-ray tube is properly modified, and an electron beam deflection system is installed; the electron beam deflection system realizes electron beam deflection scanning by controlling the current of a deflection magnetic field coil by a remote computer through a communication serial port; the laminated battery is positioned in a reference coordinate system of the detection platform through the clamping tool, it is ensured that the angular position of the battery and the relative position of the X-ray source are kept consistent during detection each time, the X-ray source and the detector are relatively fixed, and multi-angle projection is achieved through electron beam deflection. According to the method for rapidly detecting the OverHang of the positive electrode and the negative electrode of the laminated battery and the method for controlling the deflection of the electron beam to generate the multi-view projection X-ray by the change of the electromagnetic field, a multi-view two-dimensional picture of the laminated battery is obtained, the OverHang data of the laminated battery can be conveniently and rapidly obtained without a complex CT (Computed Tomography) method, and the method has high application value.

A water-guided laser assembly and a precision machining assembly are fixed to the same side of a sliding plate of a vertical five-axis machine tool, an ultrasonic vibration platform is installed on a C-axis workbench of the vertical five-axis machine tool, and the water-guided laser assembly, the ultrasonic vibration platform and the precision machining assembly are controlled by an industrial personal computer to cooperate with each other; a positioning measuring head is adopted to realize relative compensation of the water jet and the cutter; the water jet cooling effect is utilized in water-guided laser processing to reduce the heat affected area and improve the processing quality; ultrasonic vibration auxiliary machining effectively reduces cutting force, inhibits the surface water return phenomenon, improves machining efficiency and prolongs the service life of a cutter; and precise machining (milling, grinding and drilling) is carried out, so that the machining size precision is accurately corrected, and the residual laser-induced damage layer is removed. Through multi-energy-field in-situ combined machining, collaborative optimization of technological parameters and coordinate compensation, the problems of insufficient precision, low efficiency, thermal damage and the like during machining of complex geometrical shapes and difficult-to-machine materials in a single machining technology are solved.

An additive manufacturing system includes a gantry architecture with three orthogonally oriented beams along the X-, Y-, and Z-axes. The first beam (X-axis) and second beam (Z-axis) are configured to translate with respect to each other, while the second beam and third beam (Y-axis) are further configured to both translate and rotate relative to one another. A computer-controlled printing system is mounted to the first beam and includes at least one nozzle capable of depositing construction material suitable for building habitation structures. This configuration supports large-scale, spatially dynamic and artificially intelligent 3D printing.

The invention belongs to the technical field of computer control, and discloses a notebook computer intelligent heat dissipation control system based on a multi-modal sensor, which comprises the following steps: acquiring multi-modal heat sensing data of a notebook computer; identifying the type of the current operation scene based on the multi-modal thermal sensing data and obtaining the heat dissipation preference of a user; calculating a thermal trend index of each hardware component of the notebook computer according to the historical multi-mode thermal sensing data and the current operation scene type; based on the thermal trend index, the current operation scene type and the user heat dissipation preference, generating a heat dissipation regulation and control scheme with scene adaptability; according to the heat dissipation regulation and control scheme, intelligent heat dissipation control of the notebook computer is achieved in a progressive regulation mode; the performance stability of the notebook computer is greatly improved; and the service life of hardware is prolonged.

The invention discloses an intelligent detection system and method for the adhesive force of a galvanized wire strip steel zinc layer, and belongs to the field of material detection.The intelligent detection system comprises a stamping male die, a strip steel female die and a female die platform, the stamping male die is used for stamping strip steel, the strip steel female die is arranged below the stamping male die and placed on the female die platform, and the stamping male die is used for stamping the strip steel; and a movable guide rail is arranged below the female die platform. The die further comprises a high-definition camera system, a computer control system and a hydraulic system. The problem that an existing detection method is difficult to meet the rapid detection requirement of a continuous galvanizing production line is solved, the adhesive force of the zinc layer of the galvanized plate is detected through stamping deformation, the movable female die platform is adopted to adapt to galvanized plates of different thicknesses, the tedious process of female die replacement is avoided, the whole plate covering width of a stamping die is wide, multiple times of stamping are not needed, and the production efficiency is improved. The high-definition camera system collects images, the computer control system automatically recognizes dezincification and cracks, personal errors are avoided, the steel coil is automatically blocked and an operator is reminded when detection is unqualified, and the product quality is ensured.

The invention relates to a computer control behavior category identification method and a medium, and relates to the technical field of computer control. The method comprises the following steps: identifying a current computer control parameter, and comparing the computer control parameter with a corresponding reference threshold value, so as to identify whether the current computer control behavior type is a biological control behavior type or a program control behavior type, the computer control parameters comprise any one or more of a curvature fluctuation value, a speed fluctuation rate, a target offset rate and a random pause rate of a mouse moving track. Therefore, the biological control behavior and the program control behavior of the computer are identified, so that the program control can be stopped based on the judgment result under the condition that the control right needs to be given to people preferentially, and the influence on the operation behavior of the people is avoided.

The invention discloses a single-port detection resonator resonant frequency on-line real-time measurement system for an MEMS gyroscope, and the system comprises a closed-loop drive circuit which is used for driving a resonator to resonate and outputting a drive detection signal; the first C / V conversion circuit converts the current into a detection voltage signal, and the on-off of the first C / V conversion circuit and the negative resistance circuit is controlled by a voltage control switch; the negative resistance circuit enables the equivalent input resistance of the first C / V conversion circuit to be a negative value so as to generate positive damping feedback force on the detection resonator; the multiplier is used for carrying out multiplication demodulation on the detection voltage signal and the driving detection signal, and the angular velocity of the MEMS gyroscope is output after the signals are filtered by the low-pass filter; the upper computer controls the on-off of the voltage control switch, the frequency fd and the frequency fs are calculated through fast Fourier transform by driving the detection signal and the detection voltage signal respectively, the frequency difference is obtained by solving the difference, and the resonant frequency of the single-port detection resonator is measured on the premise that the work of the MEMS gyroscope is not affected.

The invention discloses a CARS-LA-ICP-MS combined multimode analysis system. The CARS-LA-ICP-MS combined multimode analysis system comprises a fusion light path module, a mass spectrometry gas path module, a three-dimensional mobile station, a CARS signal acquisition system and a computer control system, the fusion light path module comprises a laser source, an optical parameter amplifier, a light pulse time delay system, three dichroscopes, a light beam adjusting system, a galvanometer, a movable objective lens and a camera; the mass spectrometry gas circuit module comprises a carrier gas supply device, a multimode analysis sample cell and a mass spectrometry device; the multimode analysis sample cell comprises an upper cover, a lower cover and a side wall shell. On the other hand, the invention discloses an analysis method which comprises initialization setting, CARS analysis, mass spectrum analysis task parameter setting, laser ablation mass spectrum analysis and data synthesis. Through coaxial optical path design and an intelligent algorithm, deep fusion of chemical imaging and elemental analysis is realized, and a brand new research tool is provided for the fields of life science, material science and the like.

The invention provides a commercial vehicle AMT offline automatic running-in cleaning method, system and device and a storage medium. The method comprises the following steps that a network communication environment is built; the power source and the air source are provided for the AMT gearbox mounted on the rack, and an oil port for filling and discharging lubricating oil of the AMT gearbox is connected with the flushing equipment; establishing test conditions on the AMT gearbox based on the power supply and the air source; and when the test conditions are met, the upper computer controls the gearbox TCU to sequentially carry out running-in cleaning and lubricating oil cleanliness testing on the AMT gearbox by building a network communication environment, and whether the AMT gearbox is repaired or qualified is determined according to test result information. According to the method, residual impurities or existing tiny burrs on the parts in the AMT gearbox due to production are removed through running-in cleaning, the AMT gearbox is subjected to running-in, one-step detection is conducted on the AMT gearbox, the product quality is guaranteed from the source, unqualified products are prevented from flowing into subsequent links, and the repair cost and the quality risk are reduced.

The invention discloses a full-automatic verification system of a temperature sensor, and relates to the technical field of temperature sensor verification, in the system, a main control computer is used for reading a verification scheme, controlling a collaborative robot to install a detected temperature sensor to a tool, and controlling the collaborative robot to transfer the tool provided with the detected temperature sensor into a thermostatic bath; the thermostatic bath provides a thermostatic environment through bath liquid, and the temperature of the bath liquid is monitored in real time through a temperature standard device; the acquisition system is used for acquiring an output signal of the detected temperature sensor transferred into the thermostatic bath and converting the output signal into a temperature value under the control of the main control computer; the main control computer is further used for comparing the temperature value measured by the detected temperature sensor with the standard temperature value measured by the temperature standard device and determining whether the detected temperature sensor is qualified or not according to the comparison result. According to the invention, the verification efficiency can be effectively improved, and the high-efficiency verification requirement of a large batch of temperature sensors can be met.

The invention discloses an electric connector detection system and method based on vision, and belongs to the field of machine vision and industrial detection, and the system comprises a large constant water star series industrial camera, a multi-angle and high-uniformity adjustable light source system, a product feeding moving and packaging mechanism, a computer control system and UI software. Wherein the computer control system adopts multi-thread scheduling, a modular architecture and a sub-pixel-level algorithm, and supports high-throughput processing of 3-6 4024 * 3036 pixel industrial cameras, an image acquisition module of the computer control system can uniformly manage multiple models of cameras, and a UI (User Interface) is a drag-and-drop interface and integrates debugging tools such as OpenGL (Open Graphics Library) and parameter hot loading; the method comprises the steps of hardware configuration, trigger starting, image acquisition, positioning correction, ROI drawing, detection, reference line determination, size measurement and sorting control, ROI drawing can adapt to regular and irregularly arranged pins, the adaptability is high, the precision is high, operation is convenient and fast, full-process automatic detection can be achieved, and the requirement of a high-speed production line is met.

The invention discloses an X-ray diffraction pattern automatic analysis and stress calculation system and method based on deep learning, and relates to the technical field of advanced nondestructive testing and material performance analysis, and the system comprises an irradiation unit, a sample positioning unit, a signal acquisition unit, a calculation control unit and a safety protection unit. The X-ray is generated and projected to the tested sample through the irradiation unit, the X-ray diffraction pattern is captured by the signal acquisition unit, the irradiation unit, the sample positioning unit and the signal acquisition unit operate and are controlled by the industrial control computer, calibration and integration processing are performed on the captured X-ray diffraction pattern, standard diffraction data are obtained, and the X-ray diffraction pattern is detected through the standard diffraction data. And inputting the standard diffraction data into a neural network model, mapping a stress tensor from the standard diffraction data, and generating and displaying a stress distribution result of the tested sample. The system realizes full-process automation from data acquisition to stress calculation, greatly improves the detection efficiency and precision, and is suitable for nondestructive stress analysis of workpieces with complex curved surfaces.

The invention discloses a train wheel set rapid detection and maintenance positioning device and method for a train factory, and belongs to the technical field of train wheel set detection. A rotary jacking mechanism abuts against a wheel shaft of a wheel set to jack the wheel set up from a rail of a maintenance platform and drive the wheel set to rotate, and a rim detection assembly is arranged between the rail and the wheel; the wheel rim detection assembly can conduct continuous inspection and probing through a mechanical probe rod and an ultrasonic probe, the wheel side detection assembly is arranged on the rotary jacking mechanism and detects the side face of a wheel through a laser scanning detector, and the wheel rim detection assembly and the wheel side detection assembly transmit probing results to the upper computer. A mechanical model of wheels on the two sides is formed in the upper computer, a damage point is displayed, the upper computer controls a stepping motor of the rotary jacking mechanism to move, the damage point can be selected through a screen of the upper computer, the rotary jacking mechanism is controlled to rotate slowly, and finally the damage point stays at a probing point of an ultrasonic probe or a laser scanning detector. And maintenance personnel can identify suspicious damage points conveniently.

A method of operating a computer-controlled industrial robotic arm to sharpen a knife can include performing a profilometer scan of the knife and determining the scan is incomplete or missing data. Rather than re-scanning the knife, a template having a similar geometry to completed sections of the scan can be selected from a library of template knife profiles. The templates in the library can be generated from previously completed scans of other knives. A completed proxy knife geometry can be created by substituting the template geometry for missing scan regions or in place of the incomplete scan. The completed proxy knife geometry can then be used for controlling a robotic arm to perform a sharpening operation upon the knife.

The utility model discloses a brake steel back blank pressing device, and particularly relates to the technical field of steel back stamping, in an initial state, a telescopic cylinder is contracted, a push-pull plate is in close contact with an elliptical surface of a connecting seat, an elastic seat is limited to pop up, a torsional spring accumulates force, after a stamping process is completed, a computer controls the telescopic cylinder to extend, the push-pull plate is far away from the connecting seat, and limitation is relieved; the rotating roller rotates under the elastic force effect of the torsional spring to drive the connecting base and the elastic base to move upwards, the elastic base pops up from the stretching-out window and the steel backing is popped up to the bearing frame, the automatic control aspect and the action from the telescopic air cylinder to the ejection of the elastic base are all controlled by a computer, manual intervention is reduced, the production accuracy and efficiency are improved, and an operator only needs to set and debug in the early stage; the push-pull plate and the telescopic air cylinder are combined to guarantee that ejection of the elastic base is limited during stamping, the elastic base can be smoothly ejected after stamping, a plurality of steel backs are stamped at a time and collected in a centralized mode, the carrying and equipment starting and stopping frequency is reduced, the working intensity of operators is reduced, and the production benefit and quality are comprehensively improved.

Embodiments detect an inter-cloud service negotiation between a plurality of cloud environments, the inter-cloud service negotiation indicating an interaction between the plurality of cloud environments. Embodiments identify a plurality of local controllers of a plurality of cloud environments, a local controller of the plurality of local controllers being a computer control node configured to manage resources associated with a cloud environment of the plurality of cloud environments including a worker, and the worker is a computer execution node configured to execute the task using resources associated with the cloud environment. The embodiment selects a local controller from a plurality of local controllers based on a performance metric of the local controller. The embodiment designates the selected local controller as a hyper-controller, the hyper-controller configured to manage resources associated with a plurality of cloud environments including a plurality of local controllers.

The invention, which relates to the technical field of phased-array antenna testing, discloses an automatic phased-array testing system comprising a vector network analysis module, an antenna horn and servo control module, a phased-array antenna module, a testing tool module and an upper computer control module. The invention also discloses a phased array automatic test method. The method comprises the following steps: preparing before testing; configuring test parameters; executing an automatic test; processing and storing test data; and finishing the test and resetting the equipment. Full-process automatic testing is achieved through the upper computer automation unit, traditional testing time is shortened, large-scale phased array batch testing is adapted, personal errors are eliminated through the testing tool, the vector network module and the servo module, data credibility is improved, operation is simplified, data are automatically stored, a report is generated, modular design is adapted to multiple types of phased arrays, and testing efficiency is improved. And the cost is reduced, the application is wide, and better use prospects are brought.

The invention discloses a computer control system for industrial automatic production, which relates to the technical field of industrial automation and comprises a data acquisition module for acquiring production data on a production line in real time and transmitting the data to a production data analysis module; the production data analysis module is used for establishing a production plan analysis model according to the collected data; the production scheduling module predicts the production plan by using a time sequence analysis method based on the output of the production plan analysis model, adjusts and optimizes the production plan based on the prediction result of the production plan, and generates a control signal; and the equipment control module is used for adjusting the working state of each piece of production equipment according to the control signal generated by the production scheduling module. Through deep integration and optimization of the modules, the automation level of the production line is improved, the production process is more flexible and efficient, changes of production requirements can be responded in real time, and the production efficiency and the resource utilization rate of enterprises are improved.

Methods, systems, and apparatus, including medium-encoded computer program products, including: receiving, by a shape modeling computer program, a selection of first geometry defined in a data structure used by the computer program to represent a three-dimensional model of an object and an indication of an amount of complexity reduction, The computer program produces a second geometry defined in the data structure based on the indication of the amount of indicated complexity reduction and taking into account local shape curvature for the first geometry, where the second geometry replaces the first geometry in representing the three-dimensional model of the object. The computer program provides the three-dimensional model of the object, with the second geometry included in the three-dimensional model, for use in manufacturing a physical structure corresponding to the object using one or more computer-controlled manufacturing systems, or for use in displaying the object on a display screen.