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1070results about How to "Reduce processing complexity" patented technology

Automatic sorting system for household refuse

Disclosed is an automatic sorting system for household refuse. The system comprises a refuse target identification unit, a refuse sorting control unit, a mechanical arm and a sampling camera which is mounted at the fixed position of a conveying belt for conveying household refuse; the sampling camera shoots the household refuse on the conveying belt in real time and transmits obtained optical images to the refuse target identification unit; the refuse target identification unit receives the optical images in real time and displays the images, according to the characteristics of presorted target refuse, the optical images are treated, targets in the images are identified, and target posture information frames are obtained, and are input into the refuse sorting control unit; and the refuse sorting control unit judges whether a target enters the working section of the leisure mechanical arm or not according to the input target posture information frames and the opposite position of the mechanical arm and the conveying belt, the posture information of the target entering the working section of the mechanical arm is converted into a mechanical arm coordinate system and sent to the corresponding mechanical arm, and the corresponding mechanical arm is controlled to grab the corresponding target.
Owner:BEIJING XINCHANGZHENG TIANGAO INTELLIGENT MACHINE TECH CO LTD

Uplink synchronous control method and device

The invention discloses an uplink synchronous control method. A network side and user equipment (UE) maintain a time aligning timer aiming at UE maintenance, and maintain uplink transmission time adjusted quantity aiming at uplink member carrier waves. The method comprises the following steps: the network side measures aiming at the uplink member carrier waves of the UE to obtain the uplink transmission time adjusted quantity of the uplink member carrier waves; and before the time aligning timer is timeout, the network side sends an adjusting instruction to the UE, wherein, the adjusting instruction comprises the uplink transmission time adjusted quantity information of at least one uplink member carrier wave of the UE. The embodiment of the invention also discloses an uplink synchronous control method at the UE side, and a base station and the UE for realizing the method. The scheme of the invention can realize accurate uplink synchronous adjustment on each member carrier wave under a carrier aggregation mechanism.
Owner:CHINA ACAD OF TELECOMM TECH

Data transmission method and equipment

The invention discloses a data transmission method and equipment. The method comprises: a piece of network access equipment confirms a terminal type according to information of the terminal, confirms a data transmission mode corresponding to the terminal according to the terminal type and conducts data transmission with the terminal according to the data transmission mode. In the embodiment of the invention, the network access equipment can support low cost and low processing complex degree M2M terminal with lower performance than the present UE by confirming the terminal types with different processing performances and conducting data transmission terminals with different processing performances with by different data transmission modes to promote the wide application of M2M service.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Character extracting method in digital video based on character segmentation and color cluster

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.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Radio communication timing synchronization method, cell searching method and system

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.
Owner:RDA CHONGQING MICROELECTRONICS TECH CO LTD

Aluminum-carbon sliding tile and method of producing the same

The invention provides an aluminum-carbon sliding brick, which comprises the following compositions: 60 to 75 percent of aggregate, 15 to 30 percent of powder, 1 to 6 percent of carbon element materials, 2 to 7 percent of antioxidant and 3 to 20 percent of additive. The production method for the aluminum-carbon sliding brick comprises the following steps: firstly, the powder in the raw materials is premixed and prepared into mixed powder for standby; secondly, mixing is performed according to the feeding order of granular materials, a binder and the mixed powder; thirdly, the mixture is discharged and subjected to mechanical pressing; and fourthly, a green brick is dried and prepared into the aluminum-carbon sliding plate brick by an unfired technology or a light burning technology. The method adds nitride and spinel materials in the sliding brick to substantially improve the thermal shock stability of the sliding brick, so as to achieve the level of the aluminum-zirconium-carbon sliding brick; and because the addition of Al metals is adequately increased, air holes can be filled, and the method reduces the brittleness of materials, is favorable for green brick formation, and improves the volume density, the normal temperature strength and the high temperature strength, so as to improve the oxidation resistance of the sliding brick. The aluminum-carbon sliding brick produced by the method not only has good product quality and high strength but also has simple procedure and saves the sintering cost.
Owner:鞍山钢铁集团耐火材料有限公司

Method for clustering districts, communication network and resource scheduling system

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.
Owner:ALCATEL LUCENT SHANGHAI BELL CO LTD

Signal connector

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.
Owner:HUAWEI TECH CO LTD

Deep learning-based TFDS non-fault image detection method

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.
Owner:BEIHANG UNIV

ASIP (application-specific instruction-set processor) based on extensible processor architecture and realizing method thereof

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.
Owner:XIDIAN UNIV

Photoacoustic and fluorescence dual-mode integrated tomography imaging system and imaging method

The invention discloses a photoacoustic and fluorescence dual-mode integrated tomography imaging system and a photoacoustic and fluorescence dual-mode integrated tomography imaging method. The system comprises a modulation laser light source (1), a vibrating mirror (2), a sample rotary table (3), a filtering wheel (4), a gating intensified charge-coupled device (ICCD) camera (5), a photoacoustic detection acquisition module (6), a system control module (7), a computer (8), a data bus (9) and a control bus (10), wherein the vibrating mirror, the sample rotary table, the filtering wheel and the gating ICCD camera are positioned on the same straight line with the direction of lasers; the ultrasound transduction array normal direction of the photoacoustic detection acquisition module is perpendicular to the straight line to form a crossed vertical detection mode. According to the imaging method, light absorption distribution formed by photoacoustic tomography imaging is used as prior information for the reestablishment of fluorescence tomography imaging, and the positions of fluorophores, fluorescent yield and fluorescence lifetime parameters are reestablished by an iterative method. By the photoacoustic and fluorescence dual-mode integrated tomography imaging system and the photoacoustic and fluorescence dual-mode integrated tomography imaging method, the imaging complexity can be reduced, the cost of hardware can be saved, and the flexibility of the system and the reestablishing accuracy of the fluorescence tomography imaging can be improved.
Owner:XIDIAN UNIV

Signal transmission method, device and system

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.
Owner:ZTE CORP

Soft measurement method for biochemical oxygen demand BOD in process of sewage disposal

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.
Owner:BEIJING UNIV OF TECH

Low-cost back-contact cell production method suitable for mass production

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.
Owner:JIANGSU SUNPORT POWER CORP LTD

Method, device and system for cascading and disassembling processing of data blocks

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.
Owner:DATANG MOBILE COMM EQUIP CO LTD

A method for measuring a 2D angle of arrival (AOA) of coherently distributed signals

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.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Method, device and system for sharing matched pair information between equipments

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.
Owner:HUAWEI TECH CO LTD

Method, device and system for information transmission and subscriber equipment

An embodiment of the invention discloses a method, a device and a system for information transmission and subscriber equipment. The method for information transmission includes that flexible subframe attribute information is determined by a base station, and the determined flexible subframe attribute is transmitted to the subscriber equipment via a PMCH (physical multicast channel) by the base station. As the changed flexible subframe attribute information is transmitted to the subscriber equipment via the PMCH by the base station, the data transmission between the subscriber equipment and the base station can be achieved according to the flexible subframe attribute, and the resource consumption and the complexity of the information transmission can be reduced. The method, the device, the system for information transmission and the subscriber equipment are applicable to the communication system field.
Owner:HUAWEI TECH CO LTD

Message processing method and device

The embodiment of the invention discloses a message processing method and device, relates to the field of information technology and can reduce the complexity of message processing. The method comprises displaying a message on a screen-locked interface, then obtaining the operation track corresponding to the message, lastly, judging whether the operation track is identical to a preset operation track, and if so, processing the message. The message processing method and device is applicable to message processing of a terminal device in a screen-locked state.
Owner:HUAWEI DEVICE CO LTD

Information processing method of low-density check codes

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.
Owner:SHANGHAI JIAO TONG UNIV

Method for hybrid transmission of variable-length data packet and fixed length cell, and adaptation device

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.
Owner:XIDIAN UNIV +1

Data processing method, communication equipment and communication system

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.
Owner:HUAWEI TECH CO LTD

Biochemical oxygen demand BOD soft measurement method based on elastic radical basis function neural network

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.
Owner:BEIJING UNIV OF TECH

Data synchronization method, system and device

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.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Laser radar system, laser radar point cloud data processing method and readable medium

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.
Owner:HESAI TECH CO LTD

Frequency diversity array synthetic aperture radar high resolution and wide swath imaging method

ActiveCN105785327AImplementing distance deblurringImprove spectrum structureRadio wave reradiation/reflectionHigh resolution imagingFrequency ambiguity resolution
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.
Owner:XIDIAN UNIV

Constant envelop multiplexing method, generating device and receiving method for navigation signal

ActiveCN102694569ABasic Ranging PerformanceRanging Performance ImprovementsBaseband system detailsSatellite radio beaconingDigital signal processingCarrier signal
The invention relates to a constant envelop multiplexing method, generating device and receiving method for a navigation signal. A base-band spread spectrum signal generator is used for generating a base-band spread spectrum signal of each signal component, each base-band spread spectrum signal is subjected to multichannel wave form multiplexing at a multichannel multiplexing waveform generator to generate a multichannel multiplexed in-phase base-band waveform and a multichannel multiplexed orthogonal base-band waveform, then a carrier generator is used for generating two carriers phases of which are orthogonal to each other, the two carriers are respectively multiplied by and added to the multichannel multiplexed in-phase base-band waveform and the multichannel multiplexed orthogonal base-band waveform, thus obtaining a radio frequency signal which meets constant envelop conditions; in a receiving process, filtering, amplification, frequency conversion and digital-to-analog conversion is carried out on the radio frequency signal of the signal component, and finally corresponding digital signal processing is carried out on a digital intermediate frequency signal to realize demodulation. According to the invention, multiple signal components at two frequency points are combined into one constant envelope signal, more signal power can be distributed to a pilot channel signal component, and ranging performance is greatly improved.
Owner:TSINGHUA UNIV

Signalling sending method and device

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.
Owner:DATANG MOBILE COMM EQUIP CO LTD
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