417results about How to "Flexible modification" patented technology

The invention is a light flight simulator, belonging to a simulator to simulate air flight, comprising 6-freedom moving platform, movement controller, pattern processing computer, helmet, master control force feedback unit, sound synthesis and reproducing device, computer for processing models and kernel calculation, driving handle, pedals, switches and handgrips, where the 6-freedom moving platform comprises main beam, truss structure, driving handle, pedal, screw, motor, and chassis, as well as switches, handgrips and other parts equipped on cabin. And the invention implements 6-freedom full dynamic simulation, effectively reduces structural height, and has features of small volume, lightweight, simulation reality and low price.

The invention discloses a method for preventing interruption, comprising the following steps of: receiving a coming message when a function program is operated; searching a functional priority list, and then carrying out operation to the function program and the coming message according to the search result, wherein, when the search result is that the priority of the coming message is lower than the priority of the function program, operation to the function program and the coming message is carried out according to the search result, including that the function program is continued to be operated, and the prompt of the coming message is shielded simultaneously. The invention also discloses a terminal used for preventing interruption. The method and the terminal for preventing interruption have the advantages that the order of priority of the function program of the communication terminal can be set and modified flexibly according to requirements, thus satisfying the use requirements and having the advantage of convenient operation.

The invention provides a frequency sweep and mobile phone measurement report-based method for automatic frequency optimization. The method specifically and efficiently grasps the improvement of wireless coverage quality on user groups from user group hierarchy, associative network quality and user awareness through the association and integration of frequency sweep data and mobile phone measurement report data so as to achieve a better balance among the user awareness, the network quality and various performance assessment indexes, reduce blindness and avoid fluctuations in network quality.

The invention belongs to the technical field of intelligent construction site management, and discloses a video image based intelligent construction site regional management and intrusion detection method and system. The method includes: automatically recognizing an area divided by placement markers in a monitoring area based on a video monitoring image, adopting a mixed Gaussian model to model avideo image background, and extracting a foreground image containing a moving object; performing median filtering and morphological preprocessing on the foreground image, extracting connected domain features and LBP texture features of the moving object, and adopting the two-level tracking strategy; performing intrusion detection on each extracted moving object and the region detected in the image; sending a sound and light alarm signal according to a regional management specification for a detected illegal intrusion event. The tracking of the moving target adopts the two-level tracking strategy of the connected domain block features and the LBP features, thus ensuring the real-time property and the accuracy of the target tracking.

The invention discloses a multi-channel data acquisition device for a submarine pipeline magnetic flux leakage internal detector. The multi-channel data acquisition device comprises a hall sensor, a multi-path switch, an instrument amplifier, an analog-to-digital (AD) conversion module, a field programmable gate array (FPGA), a digital signal processor (DSP) and a secure digital memory (SD) card, wherein the multi-path switch has a two-stage series structure; the multi-channel data acquisition device is provided with heat insulation cotton so as to adapt to a specific high-temperature and high-corrosion environment of a submarine pipeline; the hall sensor converts the magnetic induction density into voltage; the voltage is switched by the multi-path switch, so that a signal is transmitted to the instrument amplifier; the instrument amplifier amplifies a weak signal; the AD conversion module sets sampling for eight times through software, performs analog-to-digital conversion, and transmits a digital value to the FPGA after the conversion; and the DSP receives FPGA cached data, digitally filters and compresses the cached data, and finally stores the data into the SD card. Due to a dual central processing unit (CPU) structure consisting of the FPGA and the DSP, a large amount of data can be stored and processed; the device has the characteristics of high speed, multiple channels, high resolution and the like; furthermore, pipeline transportation safety is guaranteed; and early maintenance is facilitated.

The invention discloses a device utilizing an RMAP protocol to realize the plug-and-play function of CAN bus equipment. The device comprises an RMAP object node controller, a CAN bus controller, a SpaceWire data interface module and an asynchronous data transceiving dual-port RAM, wherein external CAN bus interface sensing equipment is connected with the CAN bus controller, the asynchronous data transceiving dual-port RAM, the RMAP object node controller and the SpaceWire data interface module, the RMAP object node controller comprises an object command packet decoding module, a verification control module and an object node controller module, a DMA module, an object response packet coding module and a CRC data verification module, and the SpaceWire data interface module is connected with a satellite-borne computer and the RMAP object node controller. The device is advantaged in that, the RMAP object node controller is realized through an IP soft core, data conversion efficiency and data transmission timeliness are improved, and design complexity is effectively reduced.

The present invention discloses a neural network chip realization method used for real-time image identification, and belongs to the image identification chip technology field. The method comprises the steps of selecting and configuring a neural network model conveniently and rapidly according to the actual demands; realizing a universal neural network chip based on an FPGA, and finishing the neural network generation in the chip according to the FPGA reconstruction data provided by a compiling platform at the later period, so that a hardware platform can realize various neural networks conveniently and rapidly. The method enables the development efficiency of the neural network chip used for the real-time image identification to be improved substantially, the chip development difficulty to be reduced greatly and the project promotion speed to be improved, and enables the chip to have the characteristics of being good in expansibility, being flexible to modify, etc.

The invention discloses a speech signal processor for a cochlear implant based on a dual core processor, belonging to the technical field of cochlear implantation, which is characterized by comprising a core processor unit, an audio unit, a radio transmission unit, a storage unit and a power management unit, wherein the core processor unit comprises DSP+ARM low power consumption dual core processor OMAP-L137 and a protective circuit; the audio unit consists of an audio coder decoder, a front-end voice acquisition interface connected with a microphone and a rear-end headset output interface; the radio transmission unit consists of a baseband signal generation circuit, an amplification and a filter circuit, a modulation circuit and a power amplification circuit; the storage unit is composed of an NAND Flash circuit, an SDRAM circuit and a Micro SD card circuit; and the power management unit is composed of double throw switch, a diode, a fuse, an external power input interface of +5V, an external lithium battery input interface of +4.2V, a main power management circuit, a first voltage conversion circuit and a second voltage conversion circuit so as to satisfy requirements of all parts of a system.

The invention provides a spatial light reception demodulation device comprising a four-quadrant photodetector, pre-transimpedance amplifier, a low pass filter, a low noise amplifier circuit, a sampling clock PLL circuit, a high-speed analog-to-digital conversion circuit, an FPGA processing circuit, an output interface circuit, and a photoelectric detector power supply and temperature compensation circuit. The spatial light reception demodulation device provided by the invention adopts the integrated design of precise tracking signals of spatial light positions and light communication signals, integrates spatial light position error tracking calculation with light reception demodulation, thereby simplifying an optical front end of spatial light communication; by means of the amplification of a low noise amplifier and FPGA amplitude detection and control, high sensitivity, wide dynamic range reception and amplification, and precise tracking position error information extraction of spatial light are realized; and meanwhile, by means of the software radio idea, high speed A / D collection and FPGA full digital processing are adopted to realize reception and collection, demodulation and recovery and position error control of the spatial light, and the temperature compensation of the detector.

The invention relates to a force control loading and layout variable vertical vibration experimental device which comprises an n-type steel frame, a vertical vibration plate, a loading spring, an acceleration sensor, a displacement sensor and an adjustable damper. The n-type steel frame comprises two supporting stand columns, a top transverse beam, a bottom transverse beam and a bearing platform, and the bearing platform is used for fixing a vibration absorber and located between the top transverse beam and the bottom transverse beam. The vertical vibration plate can be elastically and vertically arranged between the top transverse beam and the bottom transverse beam in an up-and-down vibration mode. One end of the loading spring is connected with the vertical vibration plate, the other end of the loading spring is connected with an electric vibration loading table, and the loading spring is used for exerting the predetermined external force on the vertical vibration plate. The acceleration sensor is arranged on the vertical vibration plate and used for measuring the accelerated speed of the vertical vibration plate in the vibration stress loading process. The displacement sensor is arranged between the vertical vibration plate and the top transverse beam and used for measuring the displacement value of the vertical vibration plate in the vibration stress loading process. The adjustable damper is arranged between the vertical vibration plate and the top transverse beam and used for adjusting and controlling the damping of the vertical vibration plate in the loading vibration stress loading process.