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228results about How to "Simplify operational complexity" patented technology

Polar code decoder and polar code decoding method based on probability calculation

The invention provides a polar code decoder and a polar code decoding method based on probability calculation. The polar code decoder comprises a probability sequence transformation module, a successive interference cancellation decoding module and a decision device, wherein the probability sequence transformation module is used for transforming received channel information into a first probability sequence; the successive interference cancellation decoding module is used for performing iteration processing on the first probability sequence based on a decision result of the decision device so as to obtain a second probability sequence and transforming the second probability sequence into a soft information value; and the decision device is used for performing hard decision on the soft information value and returning the decision result to the decoding module. According to the polar code decoder and the polar code decoding method based on probability calculation, the idea of the probability calculation is applied to the design of the polar code decoder, so that the processing delay of the polar code decoder can be reduced, and the total throughput of the polar code decoder can be increased greatly; and meanwhile, the polar code decoder and the polar code decoding method are simple in operation and good in universality and have better practical prospect.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Intra-frame prediction method

The invention relates to an intra-frame prediction method, which increase the intra-frame prediction compression efficiency and comprises the following steps: (1) a brightness intra-frame prediction processing unit and a chroma intra-frame prediction processing unit are selected according to the image coding (decoding) frame size; (2) the sizes and the prediction modes of a brightness intra-frame prediction subblock and a chroma intra-frame prediction subblock are selected respectively; (3) the intra-frame prediction is performed according the selected sizes and the prediction modes of the brightness intra-frame prediction subblock and the chroma intra-frame prediction subblock to obtain an intra-frame prediction sampling value and a residual error of the intra-frame prediction subblocks; and (4) the coding mode of the intra-frame prediction subblocks, the brightness intra-frame prediction mode as well as the chroma intra-frame prediction mode and the residual error are coded respectively and then are sent to a code stream. The classification of the intra-frame prediction method is mainly aimed at the circumstances that the sizes of the intra-frame prediction subblocks are 4*8, 8*4, 8*16 and 16*8, and five optional prediction modes are matched, so that 3 percent to 5 percent of code stream bandwidth is saved under the condition that the image quality is identical, and the image encoding compression efficiency is increased; and the effect of simplifying the computational complexity can be also achieved due to the selection of partial prediction modes.
Owner:CHENGDU JIUZHOU ELECTRONIC INFORMATION SYSTEM CO LTD

Fault on-line monitoring and real-time distance measurement method for armored power cable

The invention discloses a fault on-line monitoring and real-time distance measurement method for an armored power cable. Cable fault distance measurement is carried out through a return circuit formed by a cable armored layer and the ground. Due to the fact that no direct electric connection exits between a distance measurement system and a core wire of the high-voltage cable, safety and reliability are achieved, and the normal power transmission task of the cable is not affected in the working process. According to the fault on-line monitoring and real-time distance measurement method for the armored power cable, through the return circuit formed by the cable armored layer and the ground, distance measurement of a cable fault point is carried out through the wavelet analysis technology, two functions of on-line monitoring and real-time distance measurement of the cable fault are achieved, the complexity of equipment and the complexity of the operation are simplified, the fault detection efficiency and distance measurement efficiency are improved, the technical problem that the power cable fault is generally short of an effective on-line monitoring and real-time distance measurement method is resolved, the two functions of fault detection and fault distance measurement are combined, the complexity and cost of the equipment are lowered, the complexity of the operation is reduced, and the fault detection efficiency and distance measurement efficiency are improved.
Owner:PEKING UNIV

Method and system for carrying out interactive recreation by connecting IP network with television and computer

The invention relates to a system and a method which utilizes an IP network to connect a TV with a computer to carry out interactive entertainment, the system comprises the computer, a TV set, the IP network, particularly a computer PC box and a TV set TV box, wherein, the display output interface and the communication interface of the computer are connected to the computer PC box. The computer PC box is communicated with the TV set TV box by the IP network; the audio-video signals of the TV set TV box are output to the TV set, and other input and output equipment of the TV set side is accessed to the system by the corresponding interfaces of the TV set TV box. The adopted communication medium of the IP network comprises five-type wire, power wire, wireless or fiber. The system and the method can realize the two-way transmission of household audio-video signals and control signals between the computer and the TV set by utilizing the existing household local network or in-door power wire or wireless communication to construct the IP network, thus providing great convenience for the arrangement of a family online entertainment system which takes the computer as a core.
Owner:SHENGLE INFORMATION TECH SHANGHAI

IQ signal calibration compensation method

The invention discloses an IQ signal calibration compensation method. The method comprises the steps of inputting calibration testing signals into an IQ signal calibration predistortion module; outputting compensated testing signals through compensation computing; inputting the compensated testing signals into an IQ signal calibration parameter estimation module, computing residual volume estimation of imbalance parameters, and outputting the residual volume estimation to an IQ signal calibration parameter iteration module; computing estimated values of iterated imbalance parameters by the IQsignal calibration parameter iteration module; updating the iterated imbalance parameters for compensation, thereby finishing single-time closed loop calibration; and terminating iteration if iteration times reaches the maximum iteration times, thereby finishing compensation. According to the method, closed loop iteration is carried out, complex computing such as extraction of a root and solutionof an inverse trigonometric function is avoided through utilization of an iteration approximation method, computing complexity of blind calibration is simplified, logic complexity of a digital circuitis reduced, under the same circuit area, computing count of the testing signals can be increased, compensation precision is improved, and moreover, through utilization of a closed loop system, stability under an interference condition is improved.
Owner:杭州城芯科技有限公司

Vacuum lock system and substrate processing method

The invention discloses a vacuum lock system for transmitting substrates. The vacuum lock system comprises a cavity body, a substrate support assembly and an elevating mechanism; the cavity body comprises a first cavity and a second cavity, two openings which can be connected to the atmosphere environment or the vacuum processing environment are formed in the sidewall of the second cavity, and the first cavity carries out plasma processing on the substrate therein; the substrate support assembly is arranged in the cavity body in a liftable manner, and comprises a partition plate, a first support member and a second support member, the partition plate, the first support member and the second support member are stacked vertically, and the first and second support members bear the substrate; the elevating mechanism drives the substrate support assembly to move between a first position and a second position. In the first position, the partition plate seals up a bottom opening of the first cavity, the first support member is arranged in the first cavity, and the second support member corresponds to the two openings in the sidewall of the second cavity. In the second position, the first support member corresponds to the two openings. According to the invention, the substrate processing efficiency can be improved, and the movement load of a transmission robot is alleviated.
Owner:ADVANCED MICRO FAB EQUIP INC CHINA

Analysis task processing method and device based on Flink technology and storage medium

The embodiment of the invention discloses an analysis task processing method and device based on the Flink technology and a storage medium. According to the analysis task processing method based on the Flink technology, when an analysis task is executed; the method comprises the steps of obtaining a task logic data packet of a target analysis task; searching parameters and a command template configured for the target analysis task in advance; automatically splicing to obtain a complete shell command for executing a target analysis task; completing the execution of a target analysis task through a shell command. According to the embodiment of the invention, an analysis task request of an external big data platform cannot be automatically processed in the prior art; aiming at the condition that an analysis task request of an external big data platform can only be manually spliced with complex command parameters, the operation complexity in a big data analysis scene is simplified, the shell command of the analysis task is automatically spliced, the operation is simple and easy, the requirements on an analysis task operator are reduced, the operator does not need to carry out complex work, and errors occurring in the manual operation process are avoided.
Owner:WUHAN CITMS TECH CO LTD

Access control system for safety production in power plant

The invention provides an access control system for safety production in a power plant. The access control system comprises a plurality of access control units, a support system, a receiving module, alogical judgment module, a sending module and a mobile device terminal, wherein the support system is used for connecting the access control system with a business system of the power plant, and generating access authorization instructions or access authorization release instructions according to the task list of the business system of the power plant and operations at an operation site; the receiving module is used to receive access control authorization instructions or access control authorization release instructions; the logic judgment module is used for receiving the access authorizationinstructions or access authorization release instructions; the logical judgment module is used for carrying out logical analysis of permissions on the received access authorization instructions or access authorization release instructions; the sending module is configured to issue the access control authorization instructions or access control authorization release instructions to the access control units; and the mobile device terminal is used for interacting with the support system to feed back operations at the operation site and to receive data from the support system. The access controlsystem for safety production in the power plant can improve the operation and management efficiency of the power plant and effectively prevent the occurrence of safety accidents.
Owner:STATE POWER INVESTMENT CORP RES INST

Moxibustion robot control device, system and equipment and storage medium

The invention discloses a moxibustion robot control device, system and equipment and a storage medium, and the device comprises an image obtaining module which is used for obtaining a plane image and a depth image of a target human body; a calculation module which is used for obtaining plane position coordinates of each acupoint of the target human body according to the plane image, obtaining depth coordinates of each acupoint according to the depth image, and combining the plane position coordinates and the depth coordinates to generate space position coordinates of each acupoint; a determination module which is used for determining spatial position coordinates of each target moxibustion acupoint corresponding to the target moxibustion scheme according to the target moxibustion scheme and the spatial position coordinates of each acupoint; and an execution module which is used for controlling a mechanical arm device of the moxibustion robot to execute mechanical actions, so that the mechanical arm device drives the moxibustion device to move to each target moxibustion acupoint for moxibustion. According to the moxibustion robot control device, system and equipment and the storage medium, automatic positioning of needed moxibustion acupoint space positions can be achieved.
Owner:深圳市大富智慧健康科技有限公司

Method for realizing parallel Turbo code interweaver and used in LTE (Long Term Evolution)

InactiveCN102739358ASimple designSimplification of main recursive modulus operationError preventionCoding blockRound complexity
The invention provides a method for realizing a parallel Turbo code interweaver and used in LTE (Long Term Evolution). The method comprises the following steps: establishing a recursion relationship expression which is adaptive to FPGA (Field Programmable Gate Array) and is output by an interweaver; establishing an auxiliary recursion relationship expression; establishing an initial value recursion relationship expression and an auxiliary relationship expression thereof; establishing a data splitting and combination mode which is convenient to calculate a mold to a K value; establishing an interweaving constant table; establishing corresponding relationship of a code block length and an interweaving constant table address; and realizing the parallel LTETurbo code interweaver in the FPGA. The interweaver accomplishes the output of eight interweaving addresses within one clock period; the eight addresses respectively read eight RAM (Random-Access Memory) with same content; a main control module is adopted to process so as to obtain eight bit data outputs; the calculation complexity of an existing parallel interweaver is reduced; the efficiency is eight times higher than that of a traditional 10bit interweaver; and the method has an extremely high commercial value in an LTE communication system.
Owner:WUHAN POST & TELECOMM RES INST CO LTD

Integrated recognition method for sintering conditions of cement rotary kiln

The invention relates to a method for comprehensively identifying the burning working condition for a cement rotary kiln, which belongs to the technical field of cement production. The method comprises the following steps: directly measuring the main process parameters of a burning system of the rotary kiln through a sensor; performing soft measurement on a burning zone temperature which cannot be obtained directly; and classifying current values obtained from the two measurements through dividing the values according to sub links, determining the types of the variation tendency of the current values simultaneously, and classifying the current value of each link and performing comprehensive determination on the types of the variation tendency so as to obtain the specific working condition of the burning system of the rotary kiln. The method effectively solves the problem of automatic identification of the working condition of the rotary kiln resulted from multi-variable of the burning system, strong coupling, nonlinearity, and slow time-varying characteristic, effectively improves the automation level of the fire sighting of the cement clinker burning, integrates with a process optimized system, greatly reduces the cost for clinker burning, and improves the economic benefit for enterprises.
Owner:UNIV OF JINAN +1
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