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77results about How to "Design specification" patented technology

Design-specific on chip variation de-rating factors for static timing analysis of integrated circuits

In one embodiment of the invention, a method of analysis of a circuit design with respect to within-die process variation is disclosed to generate a design-specific on chip variation (DS-OCV) de-rating factor. The method includes executing a static timing analysis (STA) in an on-chip variation mode using a process corner library. Collecting timing information of the top N critical timing paths. Executing a statistical static timing analysis (SSTA) on the N critical timing paths using timing models characterized for SSTA with sensitivities of delays to process variables. Compare the two timing results and deriving DS-OCV de-rating factors for the clock / data paths to be used in a STA OCV timing analysis to correctly account for the effects of process variations. A user may select to specify DS-OCV de-rating factors for paths or groups of paths and achieve an accurate timing analysis report in a reduced amount of run-time.
Owner:CADENCE DESIGN SYST INC

TICC-paradigm to build formally verified parallel software for multi-core chips

This invention teaches a way of implementing formally verified massively parallel programs, which run efficiently in distributed and shared-memory multi-core chips. It allows programs to be developed from an initial abstract statement of interactions among parallel software components, called cells, and progressively refine them to their final implementation. At each stage of refinement a formal description of patterns of events in computations is derived automatically from implementations. This formal description is used for two purposes: One is to prove correctness, timings, progress, mutual exclusion, and freedom from deadlocks / livelocks, etc. The second is to automatically incorporate into each application a Self-Monitoring System (SMS) that constantly monitors the application in parallel, with no interference with its timings, to identify and report errors in performance, pending errors, and patterns of critical behavior. This invention also teaches a way of organizing shared-memory for multi-processors that minimizes memory interference, protects data and increases execution efficiency.
Owner:EDSS INC

Sea ice parameter extraction method on basis of satellite image

The invention relates to implementation of a sea ice parameter extraction method on the basis of a satellite image and a system and belongs to the technical field of computer application. The sea ice parameter extraction method on the basis of the satellite image is characterized in that an algorithm of eliminating warp and weft noise by the satellite image is implemented; image element types are accurately identified and classified; and a land and sea ice boundary and a sea ice and seawater boundary are extracted by a boundary tracing algorithm. On the basis, three parameters, i.e. the sea ice intensity, the sea ice thickness and the sea ice size, in the satellite image are calculated; and a user opens the image at a computer terminal and carries out the operations of preprocessing the image, identifying key elements (sea ice, land, seawater), describing the boundaries, extracting the sea ice parameters and storing a data result. The extraction method is reasonable, efficient and accurate and strong in scientificity; and the system is regular in design, high in reliability and user-friendly.
Owner:DALIAN UNIV OF TECH

Three-dimensional process planning method and platform for typical automobile machined parts based on MBD

The invention belongs to the technical field of computer-aided process planning, the invention discloses a three-dimensional process planning method and a platform for typical automobile machined parts based on MBD, based on 3D CAD software, with the MBD design model as the sole data input, the process MBD model is used as the data output, and the design process includes the establishment of MBD related standards, the creation of MBD design model, feature classification and feature database, feature recognition and information extraction, the generation of machining elements, the generation ofmachining elements clustering process, process sequencing, manufacturing features, the creation of process model and so on. The final application example of the present invention is in the case whereNX is used as a carrier, C + + and NXopen language, the invention can quickly generate a process MBD model which integrates a process model and a manufacturing feature body, can realize the visualization of the process design flow, improve the process design efficiency, and lays a foundation for the integration of CAD / CAPP / CAM. The invention can be used in the three-dimensional CAPP system developed by C + + and NXopen language.
Owner:WUHAN UNIV OF TECH

Method for recycling kitchen waste

The invention belongs to the technical field of waste treatment, and in particular to a method for recycling kitchen waste. The method for recycling kitchen waste provided by the invention comprises the following steps: kitchen waste pretreatment, crushing, solid-liquid separation, oil-water separation, biogas preparation and biogas residue separation. The method provided by the invention is reasonably and regularly designed, and not only can conduct effective and environment-friendly treatment on kitchen waste, but also can produce methane, recover oil and obtain by-products, such as organic fertilizer and feed in the treatment process; besides, the method realizes resource utilization of kitchen waste, and has significant economic benefits.
Owner:ZHENGZHOU JINTUDI ENERGY TECH

Page layout method and apparatus

The invention discloses a page layout method and a device, the page layout method comprises steps of setting a grid page composed of grid elements, carrying out grid regional division for the grid page according to webpage contents, and performing page layout by using the divided grid region. By using the invention, the webpage design with the grid elements is more reasonable, layout is more standard, and the whole website appears more uniform, thereby reducing workload for a designer.
Owner:ALIBABA GRP HLDG LTD

Vehicle semi-active suspension hybrid control method based on damping multi-mode switching vibration damper

The invention proposes a vehicle semi-active suspension hybrid control method based on a damping multi-mode switching vibration damper, and the method comprises the steps: (1), building a damping nonlinear characteristic mathematical model of a vibration damper according to the structural principle of the damping multi-mode switching vibration damper; (2), carrying out the simulation analysis of the damping nonlinear characteristic mathematical model of the vibration damper, obtaining the speed characteristic curve of the vibration damper, and determining the restoration damping coefficient and compression damping coefficient of the vibration damper in each damping working mode; (3), building a vehicle semi-active suspension hybrid dynamic model comprising the damping multi-mode switching vibration damper based on a hybrid logic dynamic modeling method; (4), combing with the requirements of suspension system control, and completing the design of a vehicle semi-active suspension hybrid model prediction controller. Compared with the prior art, the method can achieve the effective control of a vehicle semi-active suspension comprising the damping multi-mode switching vibration damper, improves the actual control performance of a vehicle semi-active suspension system, is lower in implementation cost of a control strategy, is strong in actual application capability, and is remarkable in advantages.
Owner:采埃孚汽车零部件系统(上海)有限公司

Test kit for detecting periodontal disease

A test kit is disclosed for diagnosing periodontal disease in a patient by analysing a sample from the oral cavity of the patient. The test kit includes at least a first detection assay for detection of a first substance originating from bacteria and at least a second detection assay for detection of a second substance originating from the immune or inflammatory system of the patient.
Owner:TENDERA

Method for setting design margin for LSI

After predicting a relationship between a design margin set against a fabrication variation in design of an LSI and a yield, a specific design margin for attaining a given yield is calculated based on the predicated relationship. The yield is a delay yield obtained by cumulating a signal propagation delay time thereby achieving a probability that a signal propagated through a logic circuit of the LSI is delayed by a given amount of time, and the design margin is a derating factor indicating a ratio between the signal propagation delay time and a standard value of the signal propagation delay time.
Owner:PANNOVA SEMIC

Sea ice-sea structure interaction discrete element high-performance simulation system

The invention belongs to the technical field of computer application, and discloses a sea ice-sea structure interaction discrete element high-performance simulation system. By the adoption of three steps, the sea ice-sea structure interaction discrete element high-performance simulation system simulates sea ice and sea platform structure action, and the simulation includes the steps of model establishment, numerical value computation and result display. A user can directly set sea ice and sea structure parameters at a computer terminal in an interaction mode, and ice loads, vibration response and other mechanical properties of the structure and a visual three-dimensional result animation of the structure are accurately and efficiently obtained. In this way, based on a GPU discrete element numerical value, the sea ice-sea structure interaction discrete element high-performance simulation system has actual guidance meaning for structural design and fatigue analysis of an ice zone sea platform. The system is suitable for multiple research fields, involving sea ice and sea structure interaction, of environment, weather, hydrology, industry and scientific research, an interface is user-friendly, the design is standard, and good user experience is achieved.
Owner:DALIAN UNIV OF TECH

Application frame for intelligent power information interaction of large users

An application frame for intelligent power information interaction of large users comprises a communication management server, a security management server, an application server and a terminal application frame, wherein the terminal application frame is a Client, and the communication management server is a Server, a C / S structure is formed between the Client and the Server. The communication management server is in response to the request of the terminal application frame. The security management server is positioned between the communication management server and the application server, and realizes an application access security control. All access requests from the terminal application frame which are forwarded from the communication management server to the application server are authenticated by the security management server. An application function component is deployed in the application server and is called by the terminal application frame. The invention provides an application frame for power enterprises so that large users access an information network at the power enterprise side through the network and an application software function realizes the interaction of data and instruction in C / S or B / S manner.
Owner:JIANGSU ELECTRIC POWER CO +2

Method for designing color non-motor vehicle waiting area based on slow-running priority

The invention provides a method for designing a color non-motor vehicle waiting area based on slow-moving priority, which comprises the following steps of: firstly, acquiring traffic data of a designed intersection, and then performing feasibility analysis of non-motor vehicle waiting area setting on the designed intersection according to the acquired traffic data; determining the length of the non-motor vehicle waiting area in the entrance direction through a formula; according to the length of the non-motor vehicle waiting area, adding a non-motor vehicle driving-in signal phase to intersection signal lamp phase information; meanwhile, dividing the non-motor vehicle waiting area into a non-motor vehicle waiting danger area and a non-motor vehicle waiting safety area; and finally, carrying out corresponding warning color marking on the danger area and the safety area of the non-motor vehicle waiting area to finish the design of the colored non-motor vehicle waiting area based on slow-running priority. According to the method, the length of the non-motor vehicle waiting area and the time for allowing the non-motor vehicle to drive into the non-motor vehicle waiting area are obtained through a calculation formula, and the method is also suitable for the situation that a right-turn motor vehicle or a non-motor vehicle is high in traffic flow.
Owner:CHANGAN UNIV

A design method of submarine cable conductor with circular monofilament compact structure

The invention discloses a design method of a submarine cable conductor adopting a circular monofilament circular tight pressing structure, which comprises the following steps: 1) determining a resistance; 2) calculating that outer diameter DA of the conductor and the diameter d of the monofilament; 3) calculating that strand outer diameter Dm of each lay of conductor; 4) calculating that compaction amount. DELTA.Dm of each layer; 5) comparing that tightening amount. DELTA.Dm of each lay; 6) calculating that number of single filament of each layer of conductors; 7) determining that number of monofilament of each conductor layer. In the above manner, the design method of the submarine cable conductor adopt the circular monofilament circular tight pressing structure of the invention can be applied to the conductor design of different cross sections, so that the conductor design of different cross sections is more standardized, and the defect that there is no universal conductor design method is remedied.
Owner:HENGTONG SUBMARINE POWER CABLE CO LTD +1

PCB design method and system automatically leading in design rule

The invention discloses a PCB design method and a system automatically leading in a design rule. The method comprises the following steps: S1. determining a design rule needed by PCB design and storing; S2. leading the stored design rule into a PCB design tool; S3. using the PCB design tool and the led-in design rule to perform necessary PCB design. The invention causes the design rule in the PCBdesign process to be conveniently led in and ensures the accuracy of the led-in design rule, so that PCB design is more standard, and the PCB design performance is ensured. Meanwhile, the invention also reduces the workload of CAD engineers, QA engineers and production technologists and is convenient to upgrade and maintain each PCB design rule.
Owner:SHANGHAI WINGTECH ELECTRONICS TECH

Static timing analysis with design-specific on chip variation de-rating factors

In one embodiment of the invention, a method of analysis of a circuit design with respect to within-die process variation is disclosed to generate a design-specific on chip variation (DS-OCV) de-rating factor. The method includes executing a static timing analysis (STA) in an on-chip variation mode using a process corner library. Collecting timing information of the top N critical timing paths. Executing a statistical static timing analysis (SSTA) on the N critical timing paths using timing models characterized for SSTA with sensitivities of delays to process variables. Compare the two timing results and deriving DS-OCV de-rating factors for the clock / data paths to be used in a STA OCV timing analysis to correctly account for the effects of process variations. A user may select to specify DS-OCV de-rating factors for paths or groups of paths and achieve an accurate timing analysis report in a reduced amount of run-time.
Owner:CADENCE DESIGN SYST INC

Sampling platform for RTDS (Real Time Digital Simulator) test based on stability control system

The invention discloses a sampling platform for a RTDS (Real Time Digital Simulator) test based on a stability control system. In a RTDS simulation test of a SCS-500 type stability control device, theproblem of long time, high wiring workload, and low efficiency in the test preparation phase is solved. The sampling platform integrates the data output part of the RTDS simulation system with the IOsampling unit of the SCS-500 type stability control device in a cabinet, and fixedly connects the temporary wiring in the test to form a standardized IO sampling unit with independent functions. Thesampling platform not only reduces the wiring work in the test preparation stage, but also regulates the design of the electric quantity output part in a model. Moreover, the sampling platform modifies an analog acquisition component in the IO sampling unit of the SCS-500 type stability control device to adapt to the signal output of the GTAO board in the data output part of the RTDS simulation system (-10V to +10V), thereby reducing the dependence on a power amplifier in the test.
Owner:NANJING NARI GROUP CORP +3

Power maintenance platform system with emergency power supply

ActiveCN104779554AConvenient to surroundConvenient maintenance locationApparatus for overhead lines/cablesEmergency SupplyElectric power
The invention discloses a power maintenance platform system with an emergency power supply. The power maintenance platform system comprises a base, a hydraulic hoisting arm arranged on the base, a supporting column arranged on a lifting device, an emergency power supply lamp arranged at the top end of the supporting column, and a maintenance support arranged on the supporting column, wherein a plurality of universal wheels are arranged below the base; the maintenance support comprises the supporting column connected with the lifting device, a first fixing component, a second fixing component and a maintenance platform, and the first fixing component and the second fixing component which are separately arranged on the supporting column in an up-and-down manner; the first end of the maintenance platform is arranged on the first fixing component; a working opening for enwrapping an article to be maintained is formed in the bottom of the maintenance platform; openable movable plates are arranged at the end part of the lifting platform; the movable plates are adjacent to the working opening; after the movable plates are opened, a maintenance opening communicated with the working opening is formed.
Owner:STATE GRID CORP OF CHINA +1

Airplane fatigue load designing method

The invention belongs to the field of airplane load designing and relates to an airplane fatigue load designing method. The airplane fatigue load designing method is characterized by including the following steps: firstly, determining a flight mission, namely dividing the flight mission into training flight and an airline flight, and decomposing in a detailed manner to acquire flight mission section; secondly, determining a load-bearing form, namely dividing the load-bearing form into maneuvering condition and gust condition; thirdly, determining a load calculation state, namely determining the load calculation state according to the flight mission section and the load-bearing form within a flight envelope range; fourthly, performing fatigue load calculation, namely building an aerodynamic force calculation model and an aerodynamic / structural coupling model, and using a structural finite element model for fatigue load calculation to acquire fatigue load. The airplane fatigue load designing method has the advantages that a designing process is created, so that standardized designing of the fatigue load is realized.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA

Foam glass heat-insulation layer construction method

A foam glass heat-insulation layer construction method is characterized by including the steps of a, preparing, transporting and storing foam glass plates; b, laying foam glass heat-insulation layers on a roof; c, laying foam glass heat-insulation layers on a base layer of a wall; d, laying foam glass heat-insulation layers on other detailed structures. The foam glass heat-insulation layer construction method has the advantages of reasonable and standardized construction step design, high operability, safety and reliability in foam glass heat-insulation layer quality, convenience in construction, high construction speed, capability of shortening construction period to a certain degree, cost saving and remarkable economic benefit.
Owner:MCC5 GROUP CORP SHANGHAI

A new type of battery energy storage system and its functional integration design method

The invention provides a novel battery energy-storage system and a function integration designing method thereof. The system comprises an energy storage unit and an EMS (energy storage monitoring system); the energy storage unit comprises an EB (energy storage battery unit), an BMS (battery management system) and a PCS (power storage current transformer); the EB is connected with the BMS, the BMS is respectively connected with the EB and the PCS, the input end of the EMS is connected with the output end of the BMS, and the PCS and the EMS are communicated with each other. The method comprises an energy storage battery monitoring and analyzing method achieved through the BMS and the PCS and an energy-storage system monitoring and analyzing method achieved through the PCS and the EMS. In the battery energy-storage system function integration design provided by the invention, all large application occasions of electric power systems are covered, the objective is clear, and various requirements and applications are met.
Owner:STATE GRID CORP OF CHINA +2

Design method of IMU digital filter for inertial navigation system

The invention relates to a design method of an IMU (inertial measurement unit) digital filter for an inertial navigation system. The adopted the scheme is that the design method comprises the following steps: through overall planning, dividing an IMU special filter for the inertial navigation system into various filter assemblies by class, extracting parameters of each assembly, designing and establishing various filter assembly models to form an IMU special digital filter assembly model library, reestablishing a combination and reconfiguring parameters according to different IMU needs by selecting the assemblies from the IMU special digital filter assembly model library to form a filter model meeting IMU special data processing needs of different inertial navigation systems, determining the filter model through data simulation verification of the models, and automatically converting the model into an embedded system code. By the design method, quick and efficient design of the IMU special filter of the inertial navigation system is achieved; the IMU special filter has good certainty, simulation, testability and extensibility; the consistency of design, simulation and achievement is effectively ensured.
Owner:FLIGHT AUTOMATIC CONTROL RES INST

Pre-treatment system for acid water of oil refinery

The invention discloses a pre-treatment system for acid water of an oil refinery, which is mainly composed of three acid water storage tanks connected in sequence, two water seal tanks, two sets of impurity and oil removing devices and one set of acid water gas ejecting, degassing and deodorization device 6. The three acid water storage tanks comprise an impurity and oil removing tank 1, a stabilizing tank 2 and a stripping tower feeding tank 3. The two water seal tanks comprise a positive pressure water seal tank 4 and a safe water seal tank 5. The two sets of impurity and oil removing devices comprise a tank-in-tank oil and impurity removing device 7 and a rotational flow oil removing device 8. The three-tank two-water-seal oil removing deodorization combination technology flow is one set of complete, refining and advanced acid water pre-treatment technology. The pre-treatment system can enable raw material water pre-treating processes and results to meet technology production requirements and safety and environment-friendly requirements. Therefore, safety and environment-friendly problems bothering people for many years in the aspects of pretreatment for the acid water of the oil refinery are solved thoroughly, and a gap in the aspect of acid water pretreatment technology standardization in our country is filled.
Owner:PETROCHINA CO LTD

Casting cup assembly for forming an ophthalmic device

Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.
Owner:JOHNSON & JOHNSON VISION CARE INC

Integration device and method of manufacturing a shell for a cradle

The invention relates to an integration device for integrating a cellular telephone in a vehicle, whereby the integration device comprises a receiving compartment, a coupler antenna for the cellular telephone network attached to the receiving compartment and electronics which can be connected to an external antenna. Here, the integration device comprises multiple coupler antennae connected to the electronics, whereby a communications connection is made via the cellular telephone network such that the electronics of the integration device for the active cellular telephone inserted in the receiving compartment, regardless of the type of the cellular telephone inserted and regardless of the position of the cellular telephone inserted in the receiving compartment, selects and uses for the communication that coupler antenna with the highest reception quality in the communication with the cellular telephone located in the receiving compartment.
Owner:PEIKER ACUSTIC GMBH & CO KG

Walnut shell-separated glasses acupuncture drug steaming therapy device

The invention provides a walnut shell-separated glasses acupuncture drug steaming therapy device. The walnut shell-separated glasses acupuncture drug steaming therapy device comprises a glasses frame and an elastic cord; both ends of the glasses frame are connected with both ends of the elastic cord in a fastened mode; the glasses frame comprises an upper housing, a lower housing and a support, wherein the upper housing is connected with the lower housing through the support, the lower housing is slidingly connected with the glasses frame, the inside of the upper housing is provided with a separating plate and moxa fixing needles connected to the separating plate, and the lower housing is arranged symmetric to the moxa fixing needles and connected through a sponge layer; one end of the lower housing is provided with a drug injection port. The walnut shell-separated glass acupuncture drug steaming therapy device is standard in design and convenient to use; damaged parts can be replaced timely and soaking waiting time can be saved. Meanwhile, the walnut shell-separated glass acupuncture drug steaming therapy device is easy to popularize, high in drug absorption and good in therapeutic effects.
Owner:GUIYANG COLLEGE OF TRADITIONAL CHINESE MEDICINE

Movable oxygen bar house

The invention relates to a movable oxygen bar house. The movable oxygen bar house comprises an oxygen generation system, an embedded cloth oxygen analyzer exhaust outlet, an embedded cloth oxygen analyzer air supply inlet, a wall control box, an inner circulating fan, a distributor, an oxygen inhalation terminal, and the like. An outdoor oxygen generation unit comprises two dependent draught fans and an oxygenerator. Oxygen generated by the oxygenerator is sent to the embedded cloth oxygen analyzer air supply inlet through a sealed oxygen pipeline and then is continuously sent into the movable oxygen bar house through the embedded cloth oxygen analyzer air supply inlet. The movable oxygen bar house is standard in design, simple in operation, environment-friendly, long in service life, capable of eliminating fear for high altitude anoxia of a user and enabling people to enjoy leisure and entertainment in an environment full of the oxygen and negative oxygen ions, convenient to use, attractive in appearance and practical. According to the movable oxygen bar house, an intelligent control system can be used for adjusting and setting oxygen concentration, negative ion content, and air purification degree in the movable oxygen bar house and a safe early-warning system can be used for adjusting and setting a safe early-warning value through the functions of temperature early warning and smoke early warning.
Owner:QINGDAO DAOYIKONGYOU TECH

Control system of converter valve hall inner wall cleaning robot

The invention discloses a control system of a converter valve hall inner wall cleaning robot. The control system comprises at least one driving module, at least one controlled object stepping motor, an electric push rod, a cleaning module, a guiding module, an obstacle avoidance module, a computer PC terminal, a single chip microcomputer chip and a CAN bus. The computer PC terminal receives all bus information from the CAN bus so as to monitor initialization and the working states of the driving module, the cleaning module, the guiding module and the obstacle avoidance module. The driving module obtains navigation information from the CAN bus and achieves positive rotation, negative rotation and stop of the stepping motor when the robot climbs, advances and goes back the same way through a stepping motor driver. The cleaning module obtains cleaning starting information from the CAN bus, and then ascending and descending of a cleaning brush are achieved by controlling the electric push rod to stretch out and retreat. The descending distance of the cleaning brush is determined by the stroke of the electric push rod. The guiding module controls two distance measurement sensors.
Owner:ZHEJIANG UNIV OF TECH
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