1060results about How to "Reduce processing complexity" patented technology

The invention relates to a character extracting method in a digital video based on character segmentation and color cluster, which comprises the following steps: (1) character segmentation: utilizing the characteristic differences of a character area and a character interval area to carry out vertical projection to segment images in the character area, namely, segmenting each row of area image containing a plurality of characters into a plurality of subarea images only containing a single character so as to reduce the post operating and treating difficulties and improve the identifying accuracy rate of OCR; and (2) character extraction: firstly, using the character color characteristic in the image to cluster colors, finding out an image layer containing maximum character information as a target image layer, and deleting the background area; and then, using the communicating characteristics of the characters to analyze a communicating area of the target image layer, and removing non-character areas to obtain such three results as single character images, an integral image of the character area and an integral image spliced by the single character images respectively, wherein all the three results are input to an OCR system to be identified, and the latter two results use the semantic processing function of the OCR and can accurately determine the characters with similar forms according to the context to improve the identifying effect.

The invention discloses a method for timing and synchronizing wireless communication, a method for searching districts and a system thereof. The method fully utilizes the time domain repetitiveness of a main synchronizing signal in a 5ms period and comprises: firstly, adopting predetermined step length sliding time domain cross-correlation to realize blind timing coarse synchronization with low complexity and without local synchronizing signal reconstruction, simultaneously, using normalized correlation processing to resist strong interference, finally, realizing timing fine synchronization with high precision, and correcting receiver integer multiple residual frequency deviation simultaneously. The method can realize timing and synchronization rapidly and accurately in particular in environment with low signal to interference and noise ratio, thereby realizing district searching in a long term evolution wireless communication system. The method can realize downlink timing and synchronization when the signal quality is in the sensitivity position of a terminal receiver and in the environment with strong interference.

The invention provides a method for clustering districts which comprises the following steps of: dividing each district into a district marginal area and an inner area according to a wireless position of the district and organizing a plurality of adjacent district marginal areas into a virtual district. The invention also provides a wireless resource scheduling method based on the method for clustering districts, a movement management method, a district pilot frequency design method, a communication network and a resource scheduling system.

The invention provides a signal connector and relates to the field of data transmission. The signal connector includes a backplane connection portion and a daughter card connection unit. The backplaneconnection portion is provided with a first signal terminal pair and a first shielding sheet, and the daughter card connection unit is provided with a second signal terminal pair and a second shielding sheet. When the backplane connecting portion and the daughter card connecting unit cooperate with each other, the first signal terminal pair and the second signal terminal pair are joined one by one, and the first shielding sheet and the second shielding sheet can form a shielding cavity which coats the first signal terminal pair and the second signal terminal. Through the signal connector provided by the invention, the better shielding structure can be formed between transmission signals, the signal crosstalk can be reduced, and the signal integrity can be improved.

The embodiment of the invention provides a method and a device for two-dimensional code application. The method essentially comprises the following procedures: a terminal acquires two-dimensional code data and conducts resolution of the two-dimensional data to obtain the sign operation flow in the two-dimensional data; the terminal uses a utility model program to execute the sign operation flow in the two-dimensional code data. The device essentially comprises a two-dimensional data acquisition module, a two-dimensional code data resolution module and an operation flow execution module. With the embodiment of the invention, the terminal executes vicinal utility according to execution sequence regulated in the two-dimensional code so as to provide the user with friendly business operation guidance, normalizing feedback information of the client side and reducing the processing difficulty and the complexity of the business platform.

The invention discloses a deep learning-based TFDS non-fault image detection method. The method comprises the steps of building a network model capable of synchronously detecting multiple regions and multiple types in combination with deep learning image classification and target detection technologies based on a deep learning theory; performing locating detection on regions of non-fault key parts in railway TFDS images by the model; judging the images, in which the regions of the non-fault key parts are not detected, as suspected fault images; and observing and detecting a small amount of the suspected fault images by human eyes of indoor train inspection personnel. According to the TFDS non-fault image detection method provided by the invention, a large amount of the non-fault images are filtered out and only a small amount of the suspected fault images are observed and judged by the human eyes by virtue of the deep learning technology; and the method can greatly reduce the workload and working intensity of the indoor train inspection personnel.

The invention discloses an ASIP based on an extensible processor architecture and a realizing method thereof, which mainly solve the problem of high circuit complexity and large resource consumption in the prior art. Aiming at the extensible processor architecture after optimization, the invention adopts a five-level-pipeline realizing method, and adopts a data orientation technology and a branch non-execution strategy to solve data hazards and control hazards in pipeline treatment respectively. The ASIP comprises an instruction fetch unit, a decoding unit, an execution unit, a memory access unit, a write-back unit, a pipeline control unit, a timer and an interrupt controller. According to the ASIP and the method, the characteristics of a pipeline processor and an FPGA (field-programmable gate array) are considered sufficiently, the pipeline structure is partitioned reasonably, and the hardware resources of the FPGA are utilized to the utmost extent; and the ASIP and the method have the advantages of simple circuit design, low resource consumption, high processor performance and low power consumption, and are highly suitable for large-scale parallel processing.

The invention discloses a signal transmission method, device and system. The signal transmission method comprises the step that a base station transmits a synchronization signal block according to a predetermined synchronization signal block configuration mode, wherein the synchronization signal block contains a synchronization signal, or the synchronization signal block contains a synchronizationsignal and a message signal, there is a pre-defined corresponding relation between the synchronization signal and the synchronization signal block configuration mode, and the message signal comprisesat least one of a physical broadcast channel, a paging downlink control message, a paging message, a control channel and a data channel.

The invention relates to a soft measurement method for the biochemical oxygen demand in sewage treatment, belonging to the sewage treatment technical field, while the sewage treatment has serious production conditions, serious random interference, strong nonlinearity, large time varying and serious delay, thus is hard to establish an accurate mathematic model via mechanism analysis, and the nerve network has advantages for controlling the system of high linearity and serious uncertainty. At the point of online detection of the key water quality parameter as the BOD (Biochemical Oxygen Demand) in the sewage treatment, the invention adopts a sewage water quality soft measurement modeling method based on neurocomputing and utilizes a delete-type nerve network to realize the biochemical oxygen demand BOD online soft measurement in sewage treatment, to obtain good effect, improve the quality and efficiency of sewage treatment, reduce sewage treatment cost, save investment and operation cost, and on-time detect water quality and parameters, to improve the efficiency and stability of sewage treatment plants.

The invention discloses a low-cost back-contact cell production method suitable for mass production, which is used for producing solar cells. The low-cost back-contact cell production method suitable for mass production has the advantages that since a laser process (laser boring) is adopted, conventional unilateral diffusion is adopted, special leakage protection measures are taken around holes and other processes are consistent with the processes for producing conventional cells, the process is simple, the cost of added equipment is low and the product performance and the finished product rate are superior to the existing scheme.

The invention discloses a data block concatenation and splitting processing method, a data block concatenation and splitting processing device and a data block concatenation and splitting processing system. The method comprises that: after receiving data blocks, a packet data convergence protocol (PDCP) layer performs pre-concatenation processing on the data blocks, and transmits the pre-concatenated data blocks to a radio link control (RLC) layer, wherein the pre-concatenation processing specifically comprises concatenation over N data blocks, and N is an integer more than 1; and the RLC layer performs concatenation processing based on the data blocks. The PDCP layer performs the pre-concatenation processing on the data blocks, thereby effectively reducing the processing capacity of the RLC layer when a relatively greater volume of data is required to be transmitted by the system, and further reducing the processing complexity of the RLC layer.

The invention provides a method for measuring a 2D angle of arrival (AOA) of coherently distributed signals. The method belongs to the technical field of wireless mobile communication technology. The method includes the steps of setting a stereoscopic antenna array composed of three parallel uniform linear arrays; establishing a data vector matrix and a propagator matrix of all the coherently distributed signals; eliminating aperture loss; establishing rotation matrixes and making pairing and combination of characteristic values of the rotation matrixes; and determining a central azimuth angle and a central pitch angle of the distributed signals. In the invention, the propagator is determined with received data firstly, then the three rotation matrixes are determined with the propagator, and finally the central azimuth angle and the central pitch angle of the distributed signals are comprehensively determined through automatically pairing the characteristic values of the three rotation matrixes by using the method in the invention, thereby improving the measuring precision to about 10 times higher than the precision of the prior art. Therefore, the method in the invention has characteristics of simplicity, high reliability, high performance in lowering the calculation processing capacity and complexity degree substantially, high measuring efficiency, high measuring precision degree and so on.

The invention discloses a method for sharing paired information between two devices. The method comprises that a first device sends out a request message for obtaining the pairing information to a second device, and the pairing information is used for secure communication between the first device and the second device; the second device returns the pairing information to the first device when determining that the pairing information exists on the device according to the request message. The invention also discloses a communication device and a communication system. By adopting the invention, the identical pairing information can be utilized between the two devices to carry out the secure communication, thereby the processing flow is simplified, and device resources are saved.

The invention relates to an information processing method of low-density check codes, which belongs to the field of communication technology. The method comprises the steps of: carrying out swivel adjustment on a check matrix H1 of the low-density check codes by a sending terminal to obtain a processed matrix H2; sending an initial data vector V by using a low-density check code encoder accordingto the matrix H2 to obtain a codeword vector X and sending the codeword vector X through channel; receiving a codeword vector Y by a receiving terminal and storing the codeword vector Y in a decoder buffer directly according to the order of reception; and receiving and processing the codeword vector Y by the receiving terminal by using the present layered low-density check code decoder to obtain a codeword vector Z, and then outputting the codeword vector Z directly according to the order of reception. The invention omits the input and output cyclic shift network for the low-density check code decoder, reduces the area and power consumption of the decoder, does not increase the processing complexity of the sending terminal and does not decrease the error correction of the codeword.

This invention discloses a method and an adaptive device for hybrid- transferring variable-length data packets and fixed size cells. The method and the device finish the images between the packet and the UFPDU, the fixed size cell and the rectified asynchronous transition mode (ATM) cell. The UFPDU and rectified ATM cell are transferred on a same VC/VT or a bare fiber/cable of SDH/SONET after processed by mix or separation, rate adaptation, penetrability conversion, scrambling or de-scrambling, image or fetch. The mark of UFPDU is compatible with that of the ATM, connection or connectionless ways are applied for the variable length data packet transfer.

Embodiments of the invention provide a data processing method, communication equipment and a communication system. In the packet service transmitting process, a code block flow of a packet service is firstly born, then the obtained code block flow is subjected to rate adaption, and finally, the code block flow after rate adaption is mapped into an optical channel payload unit (OPU) signal. Compared with a traditional GFP mapping mode, the data processing method, the communication equipment and the communication system provided by the embodiments of the invention are low in complexity and/or high in bandwidth utilization rate.

The invention relates to a video flow filter method and relative filter node, wherein said method only needs to decode part data of video flow, to recognize based on view divide recognize technique. The invention is based on present harmful content automatic recognize technique, to automatically recognize and filter, matched with man-operated recognize mechanism. And it also uses filter technique based on URL. And the filter node comprises video flow delay module, switch module, I frame checking/decoding module, content recognize module and judging module based on mark classify standard. The invention reduces decoded data amount and reduce complexity.

The invention discloses a biochemical oxygen demand BOD soft measurement method based on elastic radical basis function neural network, belonging to the technical field of detection. The sewage processing process has severe production condition and serious random disturbance, has the characteristics of strong nonlinearity, large time varying and serious lag and is hard to build a precise mathematical model by mechanism analysis. The invention utilizes the liveness function of an RBF neuron to judge the activeness of the neuron, and divides the neuron with strong activeness; then, joint strength between the hidden layer neuron and the output layer neuron of an RBF neuron network is analyzed by calculating a mutual information dependency function so as to revise the neural network structureaccording to the mutual information intensity; and finally, the parameter of the neural network is adjusted until the network structure satisfies the requirement on processing information. The invention improves the quality and the efficiency of sewage processing, lowers sewage processing cost and provides in-time water quality and relevant parameter monitoring for realizing closed loop control for the sewage processing process so as to accelerate sewage treatment plants to efficiently and stably operate.

The invention discloses a data synchronization method, a system and a device, relating to a communication technology. RRUs (Radio Remote Units) are grouped, and data can be stored in each RRU only within the time when the sum of the remote time delay of the RRU and the buffering time reaches the set time delay of the corresponding group. The quantity of data to be buffered by the RRU is reduced greatly, and difficulties in realization of the RRU are reduced. Meanwhile, the BBU (Base Band Unit) only needs to respectively process each group, data reception and processing based on the remote time delay of each RRU are not needed, and difficulties in BBU processing are also reduced.

The invention relates to a laser radar system, a laser radar point cloud data processing method and a readable medium. The laser radar system comprises a scanning module and a plurality of laser transmitting and receiving modules; the scanning module is suitable for reflecting laser pulse signals into a space, and receiving laser pulse echo signals reflected by a space obstacle; each laser transmitting and receiving module emits laser to the scanning module with a preset angle corresponding to the laser transmitting and receiving module; and fields of view corresponding to at least two laser transmitting and receiving modules have an overlapping region. With the above laser radar system adopted, the angular resolution of a laser radar can be improved at a lower cost and with lower system processing complexity.

The invention discloses a frequency diversity array synthetic aperture radar high resolution and wide swath imaging method. The purpose of the invention aims at overcoming the problem in the prior art of limited wide swath under high resolution imaging method mode. The method comprises the following steps: 1. designing a frequency increment of a frequency diversity array; 2. the frequency diversity array, in accordance with the frequency increment, determining and transmitting a signal set; 3. the frequency diversity array receiving an echo signal, and successively conducting vector quantization output and receiving a wave beam formation, and obtaining a snapshot vector of the echo signal; 4. conducting range ambiguity resolution on the snapshot vector of the echo signal, and obtaining an echo signal without range ambiguity; and 5. imaging the echo signal without no range ambiguity, and obtaining a high resolution and wide width imaging result of the entire scene. According to the invention, the method can effectively resolve echo signals with range ambiguity in spatial frequency domain, and obtains synthetic aperture radar images with high resolution and wide swath through imaging the echo signals that have range ambiguity resolved. The method is applicable to marine observation and global survey.

The embodiment of the invention discloses a signalling sending method and device, relating to the technical field of wireless communications and being used for reducing the processing complexity of a network edge device. In the invention, the network edge device receives a control signalling (for an MTC terminal) sent by an MTC (machine type communication) server; an external identification (ID) of the MTC terminal is carried in the control signalling; the network edge device determines a GUTI (globally unique temporary ID) corresponding to the external identification carried by the control signalling in accordance with a mapping relationship between a maintained external ID and the GUTI, and determines a service MME (mobility management entity) of the MTC terminal in accordance with the GUTI as well as sends the control signalling to the service MME. The method and device provided by the invention can be used to reduce the processing complexity of the network edge device.