359results about How to "Strong data processing ability" patented technology

The invention provides a flow-based abnormal communication behavior detection method and system, and belongs to the field of passive discovery of network security abnormal events. The detection systemcomprises: a configuration management module used for configuring a white list IP, a key target IP and a general target IP, a data acquisition module and a storage module used for acquiring and storing network flow data information, a key target abnormity detection module and a general target abnormity detection module used for detecting key targets and general targets respectively, and an abnormity evaluation module. According to the detection method provided by the invention, different methods are adopted to construct flow models for important network nodes and common network nodes, networkanomaly detection is carried out respectively, network events of important targets and common targets are associated, and network intrusion behaviors and abnormal communication behaviors with certainhazards are mined. The method has good discovery capability for various types of traffic abnormal behaviors, and is low in computation complexity for flow data, and is high in abnormity discovery real-time performance.

The invention relates to a face recognize system, comprising a network interface module, a dual-core chip SOC module connected with the network interface module, a CPLD address code, a DDR2 high-speed operation memory, and an external program memory, or even with a hard disk with an IDE. The dual-core chip module is connected with the high-speed operation memory via a data bus. The CPLD address code via an EMIF bus is connected with the external program memory NAND Flash or connected with the IDE hard disc too. And the whole system is powered by a power module. The recognize method comprises video code compression, pretreatment, motion check, face positioning, organ positioning, normalizing, character extraction, face comparison, and data communication. The invention has the advantages in high recognize rate and high recognize speed, strong data processing ability, better compatibility with prior detect network, stable operation, easy upgrade and maintenance, with low cost.

The invention discloses a sewage treatment engineering monitoring system based on a wireless sensor network. The sewage treatment engineering monitoring system comprises a plurality of wireless monitoring substations, a wireless transmission system and a wireless monitoring master station, wherein the wireless monitoring substations are used for collecting relative information of field apparatuses of the sewage treatment engineering; the data and commands required to be transferred by the monitoring system are communicated through the wireless transmission system; the wireless monitoring master station comprises a monitoring software, a server, a client and an Ethernet switch; and the client and the server exchange data through the Ethernet switch, and the server is mainly used for storing and managing the data of the whole sewage disposal plant. Compared with a traditional PLC (Programmable Logic Controller) control system, the system has stronger data processing capacity and larger system storage volume; and each data collecting module has an independent controller, so that the system has a strong reliability. Compared with the traditional wired transmission systems, the wireless transmission system is utilized, so that the system has the advantages of low cost and convenience for mounting and debugging, etc.

The invention relates to a rolling bearing error auto diagnose system. It takes testing analysis and kurtosis analysis to the bearing vibration, and calculates the kurtosis by virtual device and DSP, analyzes and compares the spectral configuration to accurately measure the acceleration and speed of bearing vibration, and achieve accurate analysis to automatically judge the place of the error.

The invention discloses a real-time infrared image processing system suitable for a high frame rate and large array infrared detector, which is characterized in that a signal conditioning module is used for providing bias voltage drive to the infrared detector and conditioning the analog video image signal output by the infrared detector and outputting the conditioned analog video image signal to an analog-to-digital converting module; the analog-to-digital converting module is used for converting the conditioned analog video image signal to the digital video image signal and outputting the digital video image signal to a video image processing and system control module; the video image processing and system control module is used for controlling the infrared detector and carrying out image processing on the digital video image signal and outputting the digital video image signal after image processing; and a video output module is used for converting the processed data to the analog video signal and the digital video signal and outputting the signals. In the system, all the image processing algorithms are implemented by the hardware pipeline and the system has strong processing capacity, high speed, strong expansibility, small whole volume and low energy consumption and is suitable for real-time high frame rate and large array infrared detection occasions.

The invention discloses a split mobile communication device, which comprises a communication host machine and a communication sub-machine in detachable split use with the communication host machine. A sub-machine wireless communication module of the communication sub-machine and a host machine wireless communication module of the communication host machine establish wireless connection so that the communication sub-machine is connected with the communication host machine through a short-distance wireless communication mode and then connected with a mobile communication network through the communication host machine so as to operate the communication sub-machine to realize the function of mobile communication. The communication host machine transceives the mobile communication and processes signals, and the communication sub-machine only processes the input/output signals and displays and outputs the signals, so elements can be reduced, the volume is minimized, and the split mobile communication device is further convenient for a user to use the communication sub-machine with small volume to carry out the function of the mobile communication.

The invention discloses an automobile fatigue-driving real-time alert system which comprises a driver physiological reflection characteristic detection unit, a driver operation behavior detection unit, a processor module, a data memory module and a power module. The data storage module and the power module are connected with the processor module. The driver physiological reflection characteristic detection unit comprises a brainwave detector, an infrared camera, a pupil gauge and a position sensor. The driver operation behavior detection unit comprises an angle sensor and a travel sensor. The input end of the processor module is connected with a clock module, a video signal data acquisition circuit module and a signal conditioning circuit module, and the output end of the processor module is connected with an LCD (liquid crystal display) module, a voice prompt module and an alert light. The automobile fatigue-driving real-time alert system is simple in structure, reasonable in design, rapid and convenient to use and operate, high in working reliability, good in stability, complete in function, capable of alerting a driver and other automobiles running on road, highly practical, good in use effect and convenient to promote and use.

Provided is a vegetation maintenance machine. The maintenance machine comprises a base and a supporting piece fixed with the base. The supporting piece is of a hollow structure, and a water storage device, a liquid storage device, an atomizer and a top cover are arranged in the supporting piece, water is reserved in the water storage device and used for watering vegetation, and nutrient solution for supplying nutrient to the vegetation is reserved in the liquid storage device. The atomizer provides an atomization function for the vegetation. The top cover is arranged at the top of the supporting piece, and a plant growth lamp is arranged on the top cover and illuminates the vegetation. A controller is arranged on the base or the supporting piece and connected with an image collector and the like through a wire. The vegetation maintenance machine can achieve remote nursing of the vegetation and improves survival rate of the vegetation.

The invention relates to a method and system to protect data safety of RF identification (RFID) tags and acquisition devices, so as to fulfill bidirectional authority verification between a network server and RFID tags and acquisition devices; therefore, the invention can effectively prevent illegal access on RFID tags and acquisition devices that have not passed safety certification. When effectively using a matured and simple arithmetic structure, the RFID system has no higher requirement for system hardware, so as to effectively lower composition cost between the RFID system and prior telecom network.

The invention discloses a gateway device base on multi-antenna data information fusion. According to the device, a wireless signal gathering module is in charge of collecting information of a wireless sensor terminal, and fusing collected signals through a data conversion module; and wired Ethernet, CAN bus, or RS485 and other various communication modes are chosen to use according to the actual network deployment at a scene to send the collected data to a remote control terminal, wherein when data transmission is conducted between the wireless signal gathering module and a wireless sensor network node, a multipoint-multipoint communication is realized by selecting the multi-antenna technology and the frequency division multiplexing technology, so as to not only improve the scene information multiplexing efficiency, but also can allow the channel capacity to dynamically exchange channels according to working requirements of each module; the collected data are subjected to conversion and packaging of a data protocol by the data conversion module according to network transmission requirements, and packaged signals are transferred to a remote control terminal by the data conversion module, so as to improve the versatility of the gateway device in an industrial scene.

The invention particularly relates to a PCI (programmable communications interface) aviation serial bus board and a dynamic data loading processing method and aims to solve the problems of complicated hardware design, poor data processing capability, low speed, poor instantaneity and flexibility of conventional PCI communication boards. The PCI aviation serial bus board is used for processing MIL-STD-1553B and ARINC429 bus data in the virtual test system and can dynamically adjust data processing algorithms in virtual test. Processing efficiency of the MIL-STD-1553B and ARINC429 bus data in the virtual test can be effectively improved, and instantaneity of the virtual test system is improved. By the dynamic data loading processing method, programs can be loaded dynamically, so that flexibility and using value of the board are high. The PCI aviation bus board and the dynamic data loading processing method are applicable to virtual test.

The invention relates to a VPX bus-based workpiece bench synchronous motion control system and method and belongs to the semiconductor precision mechanical equipment motion control system technical field. The motion control system includes a VPX bus chassis, a CPU main control unit, a motion control unit, an optical fiber interface unit, a power amplifier unit, a motor driving unit, a measuring unit and a man-machine interaction unit. The VPX bus-based workpiece bench synchronous motion control system of the invention can be suitable for different platforms with a large number of motor shafts, a large quantity of information, complicated control algorithms and the like. According to the control system, high-speed interconnection of a plurality of processors of the system can be realized through a RapidIO bus architecture; feedback data calculation can be completed in real time and fast through the multi-core DSP motion control unit; and communication of various paths of data can be realized through the optical fiber interface unit. Compared with the prior art, the control system not only can load complex control algorithms, but also has a flexible network topological structure, high real-time performance, high-speed data transmission ability and powerful data processing ability.

The invention provides a method for measuring the thickness of a linear laser narrowband filter PSD heat radiation plate. The measurement method comprises the following steps: a linear laser emits a laser to irradiate the surface of a sampling; the light diffused from the surface of the sampling irradiates onto a PSD photosensitive surface through a narrowband filter plate and a lens; the signals of two paths of currents are output from the two sides of PSD under the action of the light; and the current signals output by PSD are processed to acquire the measured thickness. The measurement system adopts the double optical path structure optical differential measurement method which plays a certain compensation role in the angle error caused by angle inclination in the measurement system. Therefore, the method is relatively suitable for real-time non-contact measurement in a rugged industrial production environment.

The invention discloses a multi-integrated navigation processing device under a launch inertial system and a navigation method of the multi-integrated navigation processing device and belongs to the technical field of integrated navigation of aircraft. The device comprises a sensor module, a navigation processing device and a display module. The navigation method comprises steps of firstly, directly establishing an integrated navigation system state model and measuring model of a guided missile under the launch inertial system, developing an SINS/GPS/CNS (Strapdown Inertial Navigation System/Global Position System Central Nervous System) integrated navigation method under the launch inertial system, carrying out multi-information optimal fusion processing by adopting federal filtering, and finally directly outputting attitude, position and speed parameters of the guided missile under the launch inertial system. According to the device and the method, the SINS/GPS/CNS multi-information fusion processing can be effectively realized under the launch inertial system, a high-precision navigation result is obtained, meanwhile, an efficient support is provided for the engineering implement and application of an SINS/GPS/CNS integrated navigation system.

A method of camouflaging defective print elements in a printer having a printhead with print elements, and each pixel of the image is assigned to a print element, and image information of a pixel that is assigned to a defective print element shifts to a nearby pixel position capable of printing with a non-defective print element. Shifting the image information includes the steps of a) encoding the image information to be printed as a multi-level pixel matrix in which one of a predetermined set of pixel values (“0”, “1”, “2”) is assigned to each pixel and at least one of the pixel values is a conditional pixel value (“1”) encoding a print instruction that depends upon whether or not a neighbouring pixel corresponds to a defective print element, b) determining defective print elements of the printer, and c) executing the print instruction.

The invention discloses an indoor positioning method and an indoor positioning device. The method comprises steps: multiple beacon nodes with known coordinates are arranged; based on an indoor RSSI ranging experiment, a transformation relation between the RSSI value and a distance is built; coordinate data of one or more beacon nodes are sent to an unknown node; and according to the RSSI value of each beacon node detected by the unknown node, the received coordinate data and the transformation relation, coordinates of the unknown node are determined. The problem that the indoor positioning method in related technology is low in accuracy is solved, specific coordinates can be positioned, the corresponding relation between the RSSI and the distance in positioning ranging is obtained through experimental data field acquisition in an indoor scene in need of positioning, the relation is more in line with the actual condition of the indoor scene, and more accuracy is achieved than using a wireless signal propagation theoretical model.

The invention provides an ultrasonic phased array detection imaging system, comprising a phased array ultrasonic probe, a transceiver circuit, a signal processing module, a main control module and a human-computer interaction module. The phased array ultrasonic probe is connected to the signal processing module through the transceiver circuit, the signal processing module is connected to the maincontrol module, and the main control module is connected to the human-computer interaction module. The signal processing module converts detection control information of the main control module into an electric pulse control signal, controls a transmitting circuit of the transceiver circuit, and then controls the ultrasonic array probe to excite a corresponding sound beam to an object to be inspected. The ultrasonic beam is reflected by the internal defect of the object, after a detection echo signal is detected by a receiving circuit, the collected detection echo signal is processed to obtaindetection echo data, and the detection echo data is transmitted back to the main control module. The system can flexibly adjust the scanning coverage by detecting the configuration of detection parameters, the defect parts are detected, and the detection speed and accuracy are ensured.

The invention relates to a service recommendation method based on trust extension and listwise rank learning, which comprises the steps of firstly representing each user to be the probability distribution of invoked service set arrangement by utilizing service ranking position information and referring to a Plackett-Luce model, and calculating the probabilistic user similarity based on the KL distance; taking a direct trust relationship and an indirect trust relationship between the users into consideration at the same time, calculating the direct trust degree by using a Beta trust model, calculating the indirect trust degree by using transfer characteristics of the trust relationships, obtaining the comprehensive trust degree, and constructing a trusted neighbor set of target users; integrating the trusted neighbor set into a matrix decomposition model, taking a cross entropy between a predicted ranking list and a correct ranking list as a loss function, designing a listwise rank learning algorithm to obtain an optimal ranking model, and outputting a recommendation list which best conform to user interests. The service recommendation method has high recommendation accuracy, and can satisfy potential functional requirements of the users to be greatest extent while ensuring the service recommendation quality.

The invention discloses a high speed JPEG image processing system based on an FPGA and a processing method thereof. The high speed JPEG image processing system based on the FPGA comprises an image input device, a coding module, a central processing unit, a code stream storage device, and a code stream output device, which are connected by a system bus; the image input device obtains an original image sequence and transmits the original image sequence to the coding module; the coding module implements compression coding on the inputted image sequence and outputs a compression code stream to the code stream storage device; the central processing unit is provided with register information to control the working states of each device and each module, and simultaneously responds to a coding completion interruption signal outputted by the coding module and transfers the compression code stream in the code stream storage device into the code stream output device through DMA (direct memory access) mode. The invention can realize parallel processing on the inputted image sequence, adopts a basic system in the JPEG standard, has simple structure and is easy to realize.