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568results about How to "Reduce R&D costs" patented technology

Meeting management method, device and system

The invention discloses a meeting management method. The method is characterized in that a meeting server is in API connection with a WeChat public service platform; the meeting server receives meeting room application information sent by a first WeChat client side and sends information for succeeding in apply for a meeting room to the first WeChat client side; the meeting server sends meeting invitation information to second WeChat client sides, receives feedback information from the second WeChat client sides, the feedback information comprises meeting invitation acceptation information and meeting invitation rejection information, the meeting server sends the feedback information to the first WeChat client side, and the meeting server receives meeting confirmation information sent by the first WeChat client side. According to the meeting management method, the meeting server is in API connection with the WeChat public service platform, so that the meeting room application and meeting participant invitation are conducted through WeChat, the meeting room application efficiency is raised, participant invitation is conducted conveniently and rapidly, the communication is facilitated, interaction is conducted by means of the WeChat platform which is already available, and the research and development cost is reduced.
Owner:HITACHI BUILDING TECH GUANGZHOU CO LTD

Method for designing automobile body structure layout

The invention relates to a method for designing automobile body structure layout. The method comprises the following steps of: 1) initially setting the parameters of a new type automobile, 2) choosing the white automobile body finite element models having similar structures and sizes, or directly building a white automobile body finite element model, 3) generating a grid enveloped model according to the white automobile body finite element model, 4) generating a body grid model according to the grid enveloped model, 5) topologically optimizing and analyzing according to a target parameter based on the body grid model, 6) according to an analyzed result and drawing an automobile body material layout diagram, 7) designing conception according to the layout diagram, and 8) designing the layout structure in detail according to the data of the conception design, performing simulating analysis of strength, NVH and impact performance CAE and formability process analysis according to the data of the detailed design of the layout structure, and modifying so as to acquire a three-dimensional digitized product model fit for volume production. The automobile body structure layout has the advantages of shortened developing period and lowered researching and developing cost.
Owner:CHERY AUTOMOBILE CO LTD

Load analysis method for four-wheel six-component road spectrum of finished automobile

The invention relates to a load analysis method for a four-wheel six-component road spectrum of a finished automobile. The method comprises the following steps: 1 testing a four-wheel six-component road spectrum of a finished automobile; 2 collecting the design data of the finished automobile; 3 building and adjusting a dynamic model of the finished automobile; 4 carrying out virtual iteration; 5 obtaining Z-direction displacement of a wheel center; 6 decomposing the load of the finished automobile; 7 processing the load result. The six components of four wheel centers of the finished automobile are directly measured as external road excitation input; the actual stress condition of each wheel center under the typical characteristic road excitation of test site reliability is reflected; the technical effect of obtaining the load of the finished automobile system and spare parts is realized by a virtual iteration technique and a dynamics simulation technique; the anti-fatigue performance of the finished automobile structure can be accurately predicted and optimized at the earlier stage; problem rectification of the sample automobile stage is reduced; the research and development cycle is shortened; the research and development cost is also reduced.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Distributed self-adaptive optical system based on optical fibers

The invention provides a distributed self-adaptive optical system based on optical fibers. The distributed self-adaptive optical system based on the optical fibers comprises an emitting laser, an optical fiber beam splitter, an optical fiber phase modulator, an optical fiber laser amplifier, a photoelectric detector, a three-port optical fiber circulator, a self-adaptive optical fiber collimator and coupler array, an integrated device, a multi-channel high-voltage amplifier, a wavefront controller as well as a beacon light source, a spectroscope and a far field target. The distributed self-adaptive optical system is based on the fiber laser technology in combination with a plurality of optical fiber devices, and is characterized in that a beacon light beam is divided by use of the self-adaptive optical fiber collimator and coupler array, the wavefront error of beacon light is measured in real time and the error is decomposed to each light sub-beam in a laser array, a piston for emitting the light sub-beams and a tilting phase are controlled independently and in parallel according to the principle of phase conjugation, and the influence of atmospheric turbulence effect on the quality of the light beam at the far field target is relieved. The distributed self-adaptive optical system based on the optical fibers has important application prospects in the fields such as laser atmospheric transmission, free space laser communication and laser radar.
Owner:北京鸿羚科技有限公司

CT image reconstruction back projection acceleration method based on OpenCL-To-FPGA

The invention discloses a CT image reconstruction back projection acceleration method based on OpenCL-To-FPGA. Acceleration of the CT image reconstruction back projection step is achieved through an FPGA. The method comprises the specific steps that a CPU-FPGA heterogeneous computing mode with a CPU and the FPGA cooperating with each other is constructed in an OpenCL programming model, the CPU and the FPGA are in communication through a PCI-E bus, the CPU serves as a host and is in charge of serial tasks in an algorithm and the tasks of configuration and control on the FPGA, and the FPGA serves as a coprocessor and achieves parallel pipeline acceleration of back projection computing by loading an OpenCL kernel program. In the programming mode, executive programs of the FPGA are all developed through an OpenCL language similar to C/C++ in style, development is easy and convenient to perform, modification is flexible, the development cycle can be greatly shortened, and the development cost for product maintenance and upgrading is reduced; moreover, the new method is based on an OpenCL frame, codes can be fast transplanted between platforms, and the method is suitable for being extended and applied to cooperative acceleration of a multi-processor heterogeneous platform.
Owner:THE PLA INFORMATION ENG UNIV

Simulation test stand and simulation method for driving working condition of electric automobile

The invention discloses a simulation test stand and a simulation method for a driving working condition of an electric automobile. According to the test stand, a test driving motor is utilized to simulate a motor running state of the electric automobile under a simple working condition and a circulating working condition; a dynamometer which is coaxially connected with the test driving motor is adopted to output a load torque which matches with a resistance experienced by the electric automobile when driving under a simulated working condition; a rotating speed closed-loop control based on a single chip microcomputer is utilized to solve the problem for accurate controlling the rotating speed of the test driving motor under the circulating working condition; and the calibration and closed-loop control for the loading amount of the dynamometer is utilized to improve the matching precision between the load torque output by the dynamometer and the driving resistance under the actual working condition, so that the test driving motor can operate according to the simulated driving condition of the electric automobile. The scale of the test stand is reduced, the research and analysis requirements for power driving systems of different electric vehicles are met, the simulation for different driving working conditions is met, and the application range is wide.
Owner:CHANGAN UNIV

Reliability design optimization method for avionic device

The invention provides a reliability design optimization method for an avionic device. By means of the reliability design optimization method for the avionic device, the reliability index of the device can be practically and effectively promoted in the design stage. According to the technical scheme, the method comprises the following steps that three-dimensional digital prototype modeling is conducted according to an avionic device design scheme; on the basis of a three-dimensional digital prototype, environmental stress digital prototype modeling is conducted according to a device working load, an environmental load and design information relevant to device characteristics, and a model is corrected and verified; thermal environment stress, mechanical environment stress and the like of the avionic device are analyzed by referring to environmental conditions, environmental stress weak links of the device are searched, and corresponding avionic device design optimization is conducted; a fault physical digital prototype model is built, environmental stress analysis results are introduced to conduct device fault risk prediction, avionic device design optimization is conducted aiming at the reliability weak links occurring in the analysis process, and the reliability level of the avionic device is evaluated according to the optimized fault risk distribution situation.
Owner:10TH RES INST OF CETC

Optimization design method and system for improving noise transfer function

The invention provides an optimization design method and system for improving a noise transfer function. The optimization design method comprises: establishing a finite element model of a whole vehicle body and a passenger compartment sound cavity of a vehicle to be optimized; performing noise transfer function analysis on the finite element model to obtain a sound pressure level curve of a noisetransfer function; panel division is carried out on sheet metal parts, coupled with the passenger compartment sound cavities, in the finite element model to obtain a plurality of panels; analyzing a panel contribution amount and a modal contribution amount based on the peak value in the sound pressure level curve, and determining a target panel and a target mode causing a transfer function peak value; and optimizing the vehicle body structure based on the target mode and the target panel to obtain an optimized target structure, and modifying the vehicle body finite element model based on the optimized target structure. By using analysis software, the vehicle body structure influencing the noise transfer function of the whole vehicle body can be optimized on the finite element model at theinitial development stage of the whole vehicle, the vehicle body performance is improved, the research and development cost is saved, and the research and development period is shortened.
Owner:北京长城华冠汽车技术开发有限公司

Method and device for measuring human body pulse

The invention is applicable to the technical field of computers and provides a method and a device for measuring the human body pulse. The method comprises the following steps that: multiple frames of light transmission finger bitmaps are continuously collected according to the preset time intervals; the red value saturation of the pixel points in the pulse measurement region in each frame of finger bitmap is obtained; a red value saturation rectangular coordinate system adopting the horizontal axis for representing pixel point sequence numbers and adopting the vertical axis for representing pixel points is respectively built for each finger bitmap, in addition, dotting is carried out in the rectangular coordinate system according to the red value saturation in the finger bitmaps, and thedotted points are connected for forming a red value saturation curve; the area of shapes circulated by the horizontal axis and the vertical axis in each coordinate and the red value saturation curve is respectively calculated; a plurality of shape area peak values are obtained, and in addition, the human body pulse frequency is calculated according to the time difference of the shape area peak values. The human body pulse frequency can be calculated only through electronic equipment, such as computers with cameras, mobile phones and the like, users can conveniently measure the pulse, and the development cost of special pulse test devices is reduced.
Owner:TCL CORPORATION

Electric power steering controller hardware function test board

The present invention discloses an electric power steering controller hardware function test board. The electric power steering controller hardware function test board comprises an upper computer and a simulation signal generation module. A controller to be tested is configured to burn in base hardware function test software; the upper computer is provided with upper computer measurement and control software; the upper computer is configured to send test instructions and simulation parameters to the controller to be tested and receive the test results fed back by the controller to be tested; the upper computer is configured to send the simulation parameters to the simulation signal generation module; the simulation signal generation module is configured to generate simulation signals according to the simulation parameters and instructions sent by the upper computer and output the simulation signals to the controller to be tested; the base hardware function test software of the controller to be tested is configured to control the operation of the controller to be tested according to the test instructions and the simulation parameters, collect the electrical function data of each hardware of the controller to be tested and feed back to the upper computer. The electric power steering controller hardware function test board is able to perform individual test of electrical parameters of the hardware module circuit of the electric power steering controller.
Owner:LIANCHUANG AUTOMOBILE ELECTRONICS

Device and method for testing wireless baseband chips in base station side

ActiveCN101557598AMake up for the defect that the bit-level calibration function at a specified time point cannot be completedAlleviate needsTransmitters monitoringReceivers monitoringData streamTest fixture
The invention relates to a device for testing wireless baseband chips in a base station side, which comprises mutually connected chips to be tested and a controller unit, wherein the chips to be tested are used as uplink and downlink tested objects, and the controller unit controls the generation of the data stream of an uplink antenna of the chips to be tested or collects the data stream of a downlink antenna of the chips to be tested at a right time point. The method comprises the steps: inquiring the state of the chips to be tested, reading uplink processing results output by the chips to be tested, comparing the uplink processing results with uplink parameter results, or comparing collected downlink antenna data streams with downlink parameter results, and inquiring the downlink operating state of the chips to be tested so as to respectively judge the correctness of the uplink processing results and the downlink processing results of the chips to be tested. The invention can make up the defect that a special wireless testing instrument can not achieve the function of bit-order calibration at a specified time point, alleviates the requirements of a plurality of sets of testing environments to a plurality of testing instruments and saves the costs of research and development.
Owner:SANECHIPS TECH CO LTD

Pre-combustion generator

The invention discloses a pre-combustion generator. The pre-combustion generator is mounted in an oil spraying device mounting hole on an engine cylinder cover, and comprises a pre-combustion generator body, wherein the pre-combustion generator body is provided with a pre-combustion chamber; the pre-combustion generator body is provided with a spraying hole for communicating the pre-combustion chamber with a combustion chamber; the pre-combustion generator body is further provided with a gas supplying device for supplying gas to the pre-combustion chamber; the pre-combustion chamber is provided with a sparking plug mounting hole; the sparking plug mounting hole is internally provided with a sparking plug; the pre-combustion generator body is further provided with a cooling device. The pre-combustion generator is provided with an independent cooling system, a gas feeding system and a control system so that one independent product is formed and the product can be conveniently applied to a diesel engine to be refitted into a gas engine; the tendency of detonation in a main combustion chamber can be reduced and the compression ratio of the existing gas engine can be increased; a piston and the cylinder cover do not need to be redesigned to change the compression ratio; the heat efficiency of the gas engine can be effectively improved and energy sources are saved.
Owner:WEICHAI XIGANG NEW ENERGY POWER

Engineering multiphysics coupling analysis method

The invention discloses an engineering multiphysics coupling analysis method, which comprises the following steps: (1) acquiring data information related to load transfer in different physical field numerical models; (2) setting load transfer relations of different physical field numerical models, setting the solving sequence of physical field numerical models of different computer aided engineering (CAE) analysis systems, and setting load transfer, convergence and control laws; (3) performing load data conversion and transfer for different physical field numerical models in real time on the basis of load transfer relations in an iterative loop mode according to the set solving sequence; and (4) displaying calculation results in different physical models. According to the method, functions of the existing CAE software are used to the maximum extent, the existing CAE software is not required to be modified, research and development costs and software usage costs are saved, simultaneously the usability of coupling field analysis software is improved, so that the method has a positive effect on application and popularization of the engineering multiphysics analysis in industrial design and is beneficial to performance analysis and innovative design of complex industrial issues.
Owner:INTESIM DALIAN
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