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106 results about "Neglect" patented technology

Neglect is a form of abuse where the perpetrator, who is responsible for caring for someone who is unable to care for themselves, fails to do so. It can be a result of carelessness, indifference, or unwillingness.

Infrared face identification method based on local parallel nerve network

The invention discloses an infrared face identification method based on a local parallel nerve network. A network structure mainly comprises four portions and the method is characterized by 1, extracting a preliminary convolution characteristic: through one group of 2*2 convolution kernel, extracting a preliminary face characteristic and arranging an output characteristic signal; 2, generating a parallel multi-scale convolution characteristic: using a parallel multi-scale convolution network structure to extract face characteristics representing different scale information; 3, generating a classification characteristic vector: using a fully-connected layer to integrate the convolution characteristic so as to acquire a characteristic vector which is used to finally represent a face identity and is used for classification input, and carrying out modified linear activation and random neglect processing; and 4, training and testing a classifier: inputting a processed fully-connected characteristic vector into a Softmax classifier and calculating losses, and reversely spreading, training and adjusting a network parameter so as to realize infrared face identification. The method can be widely applied to infrared face identification and identity identification applications.
Owner:BEIHANG UNIV

TDOA positioning method for indoor positioning based on height assisted correction

The invention discloses a TDOA positioning method for indoor positioning based on height assisted correction, which includes the following steps: (1) setting M base stations including a master station in a three-dimensional indoor environment, and getting the time when a wireless signal of a target node arrives at each base station; (2) inputting the experience height of the target node or the measured height Z-(^) obtained by an auxiliary sensor, reading TOA original data of the base stations and the target node, calculating the difference between the arrival time of each slave base station and the arrival time of the master base station, and getting M-1 TDOA values through processing; and (3) calculating the position of the target node according to the position of a positioning base station and the arrival time difference of the target node. The method can reduce position deviation caused by the neglect of the height of the base stations in near-field indoor positioning, and is suitable for indoor positioning under circumferential distribution of base stations. Compared with the Chan positioning algorithm, the method is more suitable for near-field indoor positioning and indoor positioning under circumferential layout of base stations.
Owner:ZHENGZHOU LOCARIS ELECTRONICS TECH CO LTD

Vehicle intelligent method capable of automatically recognizing road speed-limit sign

The invention relates to a vehicle intelligent method for automatically identifying road speed limit signs in the technical field of vehicle intellectualization. The vehicle intelligent method comprises the following steps: (1) acquiring road speed limit sign images respectively; (2) establishing speed limit sign template databases; (3) acquiring speed limit sign images; (4) carrying out reinforcement processing on the images and removing noise; (5) determining a searching area of the speed limit signs of the images; (6) transferring a speed limit sign template of a database of a corresponding type so as to carry out matching and identifying calculations; (7) automatically accumulating the template matching rate; (8) judging whether the vehicle is overspeed or not; (9) under the action of a control instruction, automatically limiting the speed of the vehicle within the range of the limit speed, and warning drivers to know limit speed information; and (10) repeating the process from the step (3) to the step (9). The vehicle intelligent method can further improve the automatic and intelligent level in the aspect of guaranteeing the vehicle to run safely, and cannot cause the vehicle to overspeed because of the neglect of the drivers.
Owner:SHANGHAI JIAO TONG UNIV

Insulation online high-precision synchronization measurement and time marking method based on master station GPS

The invention relates to an insulation online high-precision synchronization measurement and time marking method based on master station GPS, for solving the problem of influences on subsequent synchronization work due to neglect of accumulated errors generated between local clocks of each substation by use of a conventional method of realizing site synchronization through wireless communication and the problems of too high cost, increased power consumption and complex structure caused by a conventional GPS synchronization method. The insulation online high-precision synchronization measurement and time marking method based on the master station GPS is realized through the following steps of: 1, formation of a wireless synchronous measurement system: the wireless synchronous measurement system employs a structure composed of one master station and n substations, and the master station and each substation form the wireless synchronous measurement system through wireless channels; 2, synchronous starting of sampling; 3, synchronization of sampling clocks; and 4, calibration and correction of the local clocks. The method provided by the invention is applied to the wireless synchronous measurement system.
Owner:DATONG POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER +1

Clutter inhibition method of airborne external radiation source radar

ActiveCN105445707ASuppress clutterSame degree of migrationWave based measurement systemsRadarAcoustics
The invention belongs to the technical field of communication, and discloses a clutter inhibition method of an airborne external radiation source radar. The method comprises the following steps: obtaining signals received by the airborne external radiation source radar, wherein the signals comprises reference signals, first echo signals and second echo signals; respectively segmenting the reference signals, the first echo signals and the second echo signals to obtain segmentation reference signals and two paths of segmentation echo signals; according to the segmentation reference signals, respectively performing range-direction compression on the two paths of segmentation echo signals to obtain range-direction compression signals of the two paths of segmentation echo signals; respectively performing phase compensation on the range-direction compression signals of the two paths of segmentation echo signals to obtain phase compensation signals of the two paths of the segmentation echo signals; and performing channel registering on the phase compensation signals of the two paths of the segmentation echo signals, and performing subtraction on the two paths of the segmentation echo signals after the registering so as to inhibit clusters and reserve object information. The method provided by the invention solves the problem of neglect of incomplete cancellation of the clusters during migration of the reference signals in the prior art.
Owner:XIDIAN UNIV

Overhaul and operation maintenance device and method for intelligent substation process layer

The invention relates to an overhaul and operation maintenance device and method for an intelligent substation process layer. By means of the overhaul and operation maintenance device and method for the intelligent substation process layer, operation maintenance personnel can be automatically reminded to adjust other affected and related intelligent devices after the operation maintenance personnel modify related input and / or data sets in capability description files of intelligent equipment. The device comprises a signal input end, a signal output end, a processor and a terminal display device, and an SCD program file for reminding the operation maintenance personnel to detect or adjust the operation parameters of the related other devices affected by the modification after configuration files of the equipment are modified due to overhaul and operation maintenance is established in the processor. By means of the device and the method, after the operation maintenance personnel modify the related input and / or data sets, the operation maintenance personnel can quickly and accurately detect and adjust the corresponding affected and related other intelligent devices, the working efficiency of the operation maintenance personnel can be greatly improved, the rate of the detection neglect and the measurement neglect can be lowered to the maximum, and the safety operation of the intelligent equipment in a substation is ensured.
Owner:STATE GRID CORP OF CHINA +2

Sampling frequency offset compensation method based on NG-DSL system

The present invention discloses a sampling frequency offset compensation method based on a NG-DSL system. The method comprises a first step of carrying out phase deviation compensation on a received demodulated signal according to a known estimation frequency offset value and then carrying out constellation judgment, thus to obtain a primarily-compensated receiving signal R2; a second step of calculating ICI Qk of subcarriers; a third step of calculating a corrected demodulated signal Rc=R2-Qk; a fourth step of carrying out phase compensation on Rc and then carrying out constellation judgment to obtain a corrected compensation signal R3; and a fifth step of using the result of R3 as a compensation result and putting the result of R3 into the second step for further calculation of ICI, and repeating the third and fourth steps to obtain more accurate results; performing loop iteration for five times, and using the last corrected compensation result as an ultimate demodulation output signal Rr. ICI of the demodulated signal is removed by a means of loop iteration in a demodulation compensation process, thus to overcome the defect of neglect of ICI influences in a conventional frequency domain compensation method. Through simulated analysis display, performance of the method is raised by 3 to 4 orders of magnitude than the conventional frequency domain compensation method under the condition of small sample value timing synchronism deviation.
Owner:SYSU CMU SHUNDE INT JOINT RES INST +1

Particle filter centralized tracking method for multi-base radar out-of-sequence measurement fusion

ActiveCN110146850ASolving Out-of-Sequence Measurement ProblemsImprove Fusion AccuracyRadio wave reradiation/reflectionRadar systemsTelecommunications link
The invention discloses a particle filter centralized tracking method for multi-base radar out-of-sequence measurement fusion, which belongs to the technical field of data fusion of multi-base radar systems. According to the invention, out-of-sequence measurement is sequentially used to update all states between the out-of-sequence measurement generation time and the latest sequential filter time,and particle filtering is used to achieve target tracking; the problem of deterioration of target fusion tracking performance, which is caused by radar measurement out-of-sequence caused by differentdata processing time of a radar station and communication link delay, is overcome; whether the current measurement is sequential measurement is judged; if the current measurement is sequential measurement, sequential measurement update is carried out, and otherwise out-of-sequence measurement fusion is carried out; the problem of out-of-sequence measurement of multiple arbitrary timing sequences,which is caused by different data preprocessing time of each radar station and communication link delay in a multi-base radar system is effectively solved; and a universal solution is proposed for the problem of out-of-sequence measurement of multiple arbitrary timing sequences, which has higher fusion precision than direct neglect of out-of-sequence measurement.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Voltage transformer economic capacity selection method based on comprehensive consideration for economic operation and investment recovery

The invention discloses a voltage transformer economic capacity selection method based on economic operation and investment recovery. The method mainly comprises the following steps: 1, in a step of economic capacity method-based selection, optimal load rates [beta]opt and economic capacity Se based on consideration for voltage transformer economic operation and investment recovery are calculated;2, in a step of voltage transformer economic operation interval testing, an economic operation interval of a voltage transformer is analyzed, and an economic operation interval test is conducted on the initially selected voltage transformer under an actual operating load; 3 in a step of voltage transformer economic evaluation, a TOC total owning cost method is adopted to obtain all total owning cost values, economic evaluation of the voltage transformer is performed, and whether an economic evaluation result is good is tested. Via the method disclosed in the invention, actual parameters of the voltage transformer are accurately used to ensure the true validity of subsequent calculation and determination; based on the economic evaluation of the TOC total owning cost during a whole life cycle of the voltage transformer, a problem that difference in conclusions is caused due to neglect of part of the cost or short periods in the economic evaluation can be prevented.
Owner:CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP

Noise zoning model based city floor area ratio optimization method

The invention relates to a noise zoning model based city floor area ratio optimization method. The method includes: recording city space shape data in a target zone; establishing a sound source instant acquisition database; connecting the sound source instant acquisition database and a geographic information module; partitioning a noise zone into four types of zones; establishing a city noise zoning model; establishing a floor area ratio optimization module; performing noise simulation on the target zone through the zoning model according to a floor area ratio index in the target zone; and comparing simulation noise and noise demands of relevant laws and regulations, and then performing optimization on the floor area ratio. Based on a geographic information system and a city coordinate system, the method combines sound environment data information and a computer database, establishes the city noise zoning model, provides a floor area ratio optimization measurement through noise prediction of the target zone, and optimizes a city sound environment by combining noise control and the space shape design. The method solves the problem of neglect of noise influence during determination of the floor area ratio in the prior art, and the formulation of the floor area ratio is scientific and reasonable; and a method for determining the floor area ratio of city communities based on noise optimization is provided.
Owner:SOUTHEAST UNIV

Automobile six-degrees-of-freedom wheel center force test and vibration noise contribution rate calculation method

The invention discloses an automobile six-degrees-of-freedom wheel center force test and vibration noise contribution rate calculation method. The method comprises the following steps: establishing a coordinate system; arranging measurement points and installing sensors; arranging excitation points and measuring the coordinates of the excitation points; measuring a frequency response function; solving a frequency response function matrix from the center of a wheel hub to a response point; solving a frequency response function vector from the center of the wheel hub to a target point; carrying out road test; solving an excitation power spectrum density matrix; verifying the identification effectiveness of the excitation power spectrum density matrix; and calculating the energy contribution rate of each degree of freedom to the response of the target point. Compared with the prior art, the method of the invention has the following advantages: (1) as the excitation force and excitation torque of the road to automobiles can be considered simultaneously, error caused due to neglect of excitation torque in the prior art is eliminated; and (2) as the energy contribution rate of the wheel center force at each of the six correlated degrees of freedom to the vibration noise of automobiles can be calculated, error caused by an ordinary coherence coefficient method or a multiple correlation coefficient method is avoided.
Owner:SOUTH CHINA UNIV OF TECH

Auto-disturbance-rejection control system and control method of three-phase unified power quality conditioner

The invention discloses an auto-disturbance-rejection control system and control method of a three-phase unified power quality conditioner. The process of PI control on a difference value between voltages of two ends of a DC-side capacitor and a voltage reference value is substituted by auto-disturbance-rejection control on the voltages of the two ends of the DC-side capacitor and the voltage reference value, and the auto-disturbance-rejection control is used for determining state quantity and disturbance quantity of a three-phase active power filter according to the voltages of the two ends of the DC-side capacitor and the DC-side voltage reference value and generating a control current for feedback according to the state quantity and the disturbance quantity. The auto-disturbance-rejection control adopted by the invention does not dependent on an accurate mathematical model of the system, a non-linear factor, an uncertain parameter, system external disturbance and the like which are neglected during modeling in the control process are observed by an expansion state observer and are eliminated by a feedback link, so that an error caused by the neglect of the non-linear factor can be prevented.
Owner:UNIV OF JINAN

Calculation method for penetration level of inverter-based DG (distributed generation)

InactiveCN104242348AAvoid the most conservative admission capacity problemSatisfy optionalSingle network parallel feeding arrangementsConstant powerEngineering
The invention relates to a calculation method for penetration level of an inverter-based DG (distributed generation). According to the method, three operation states are firstly defined; when drop degree of grid-connection-point voltage is different on the condition of breakdown, the IBDG (inverter-based distributed generation) with a low-voltage-ride-through capability has three operation states which are respectively defined as a constant power state, an intermediate state and a constant current state; the IBDG is equivalent to a voltage-controlled current source; when three-phase short-circuit faults are caused in the downstream area of the IBDG and at tail end of each circuit of adjacent feeders, an expression of the relationship between system potential and the grid-connection-point voltage is acquired according to an equivalent circuit diagram and a nodal method of analysis; an approximate calculation formula of a short-circuit current flowing through the circuits is acquired through neglect of a phase angle difference between the IBDG grid-connection-point voltage and the system potential; the penetration level of the IBDG is then calculated. By the calculation method, the accurate penetration level, capable of meeting requirements on selectively and sensitivity, of the IBDG can be acquired.
Owner:TIANJIN UNIV
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