2087results about How to "Reduce R&D costs" patented technology

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.

The present invention relates to the automatic test method and the system of mobile phone software. The method mainly includes five steps; firstly, the keystroke operation of a mobile phone is simulated by a program-controlled switching switch; secondly, communication between a base station and the mobile phone is simulated by a comprehensive mobile phone tester; thirdly, the images of the display screen of the mobile phone are real-timely collected by a camera; fourthly, according to a test task, an industrial control computer controls the unified operation of the program-controlled switching switch and the comprehensive mobile phone tester, collects information coming from the serial port of the mobile phone and the camera-collected real-time images of the display screen of the mobile phone and compares the collected real-time images with corresponding preset template images; fifthly, according to the information coming from the serial port of the mobile phone and the comparison result of the images, the industrial control computer judges the operation state of the mobile phone software. The present invention can accurately simulate the process in which a person operates a mobile phone, so the test result is more accurate. Moreover, the present invention can increase the test efficiency and ensure the comprehensive traversal of test cases.

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.

This invention discloses an automatic test method for CDMA cell phone software and a device, among which, the method includes the following steps: simulating CDMA cell phone keys by computer and generating related test scripts in the computer to be analyzed and translated to control orders for CDMA cell phones, transferring said orders to the CDMA cell phone via the computer serial interface, said cell phone responds to related key actions and feeds back the related response information to the computer to judge if a fault happens based on the response information, which can replace large quantities of artificial operations and effectively relicates events of small probabilities in the test to cell phone software so as to position the fault point of the software.

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.

The invention discloses a method for data distribution in a LTE-A system, which comprises that: an RLC layers of network nodes receive a plurality of RLC SDUs transmitted by PDCP layers, wherein the RLC SDUs comprise communication data of at least one communication opposite terminal; and the RLC layers distribute the plurality of received RLC SDUs to carriers according to preset scheduling policies and transmit plurality of distributed RLC SDUs to the communication opposite terminals through protocol layers below the layer. Thus, compared with the LTE system, the LTE-A system has the advantages of avoiding the change of the protocol design and equipment of the protocol layers below the RLC layers of the network nodes and consequently saving research and development cost to a great extent. In addition, the invention also discloses a communication device and the LTE-A system.

The invention relates to a method for fixing a focus and measuring a curvature radius by confocal interference, and belongs to the technical field of optical precision measurement. The method comprises the following steps of: introducing interfering reference light based on a confocal light path; precisely positioning an apex of the surface of a tested spherical element and a location of the centre of a sphere by using the maximum value of a confocal interference response curve to obtain the curvature radius of the surface of the tested spherical element; and maximumly sharpening a main lobe of the confocal response curve. By the invention, the traditional confocal interference microscopy imaging technique is first applied to improvement on the fixed-focus precision of an optical measuring system, so that the optical measuring system has a higher axial resolution and a simple structure, and the research and development costs of the system device are reduced.

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.

The invention provides an automobile suspension key structure element optimization design method, which comprises the following steps of: building a suspension system kinetic model according to a pre-determined suspension system development scheme, and obtaining an equivalent load of a suspension structure element connecting point under a typical work condition; building a suspension system mechanism kinetic model, and determining an initial design domain of a development structure element; building a limited element analysis model of the initial design domain of the development structure element; obtaining the material distribution of the development structure element and determining a basic topological configuration of the development structure element; obtaining a conceptual design model of the development structure element; and obtaining each parameter optimum scheme of the conceptual design model of the development structure element and an optimization design model. When the embodiment of the invention is implemented, the development period of the suspension key structure element can be effectively shortened; and the reference can be provided for the optimization design of other system parts of an automobile.

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.

The invention provides an optical communication transmission method and system. The optical communication transmission method includes encoding to-be-sent transmission data by bit to obtain an electric signal formed by combination of a high level and a low level; controlling a designated area of a screen to send out an optical signal of flash time corresponding to the high and low levels of the electric signal; receiving the optical signal, and converting the optical signal into the electric signal composed of the high and low levels; recording duration for converting the optical signal into the electric signal composed of the high and low levels, and decoding the electrical signal to obtain the transmission data. The screen of terminal equipment is utilized for performing optical communication, an optical communication module occupies a small internal space of the terminal equipment, complicated communication protocol stack support is not required during optical communication, and external communication equipment can receive information sent from the terminal equipment only by being provided with an optical receiver, so that the optical signal only needs to be encoded and decoded simply, the structure of the whole system becomes simple, and research and development costs are saved.

According to the invention, the general function of an Ethernet switch chip is used; and based on the general hardware architecture of an Ethernet switch, an Ethernet traffic generation and analysis method is provided, so as to realize two functions of traffic generation and traffic analysis. The method specifically comprises the steps of traffic transmission message content construction, transmission message quantity control, traffic transmission rate control, flow transmission and receiving counting, traffic receiving capturing, forwarding delay measurement and protocol message interaction.

The invention provides a method for sending testing data frame in port line-speed by using the Ethernet switch, which comprises the steps that: establishing a virtual local area network (LAN) which contains one first class port and a plurality of second class ports, wherein, the virtual local area network tag of the virtual local area network is corresponding to the mark of the first class port in the virtual local area network; sending test data frame with the virtual local area network tag of the virtual local area network to one of second class ports; broadcasting and testing data frame by the second class ports which has received the test data frame in virtual local area network which is corresponding to the virtual local area network tag to form broadcast storm among a plurality of the second ports; retransmitting the received test data frame brought by broadcast storm to the equipment to be tested by the first class port. By adopting the technical proposal, the invention can send test data frame in the equipment port line-speed without network processor and FPGA, thereby, reducing the cost of research, development and production.

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.

The invention relates to a semi-physical simulation testing table of a network control system of a high-speed motor train unit train. The semi-physical simulation testing table comprises a model management unit, a real device and a model unit, wherein the real device and the model unit communicate with the model management unit. The semi-physical simulation testing table has the following obvious advantages in train control algorithm and control logic verification and optimization: lowering the research and development cost: by the establishment of the semi-physical simulation testing table of a high-speed trainset control and management system (TCMS), the research and development period is shortened, the research and development cost is lowered; shortening the development and manufacturing period: the establishment of the semi-physical simulation testing table of the high-speed TCMS contributes to the shortening of the debugging time on the train.

The invention relates to a bus card swiping system, in particular to a bus card swiping system by applying cell phone two-dimensional code technology. The bus card swiping system successfully achieves the technical purpose that a cell phone can be used as a bus card under the condition that any change is not carried out on the cell phone. The system requires that a user registers a bus account first, logs in the bus account before taking on a bus, calls out a cell phone two-dimensional code page which contains account information of the user, and places the two-dimensional code page and swipes the two-dimensional code page on a two-dimensional code reading device (arranged in the front of the bus). The two-dimensional code reading device sends card swiping information to a bus company server through wireless networks. Through the server, a bus company can classify and summarize user swiping information sent to the server from each bus line and know operating conditions of each line; and the bus company can deduct bus-taking fees from a passenger account, change two-dimensional code information in the passenger account by utilizing certain algorithm and guarantee that the two-dimensional code can reflect balance information of the user account in real time.

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.