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30results about How to "Resolving time delays" patented technology

Time delay compensation method in inertia gravity matching combined navigation system

The invention discloses a time delay compensation method in an inertia gravity matching combined navigation system. The method comprises the following steps: acquiring latitude and longitude lambda (img file='DDA 0000458357530000011.TIF' wi='71' he='48'), course psi and velocity V output by an inertial navigation system and a gravity signal acquired by a gravity meter; 2, calculating an Eotvos correction value of the gravity signal, and performing filtering processing on the Eotvos correction value; 3, determining the delay time of the gravity signal; 4, acquiring a carrier position at the corresponding moment of the gravity signal by utilizing a matching algorithm based on a gravity contour; 5, establishing a Kalman filter model; 6, taking the latitude and longitude at the carrier position as the observed quantity, estimating the error of the inertial navigation system at a corresponding time point of the gravity signal by utilizing Kalman filtering, and correcting the inertial navigation system; and 7, performing Kalman filtering, predicting a state vector at a current moment in multiple steps, and finishing time delay compensation. The method has the advantages of gravity signal time delay compensation and high navigation precision.
Owner:HARBIN ENG UNIV

Transformer area phase identification method based on synchronous sampling of concentrator and electricity meter

The invention relates to a transformer area phase identification method based on synchronous sampling of a concentrator and an electricity meter. The concentrator is synchronized with a collector, theconcentrator and the collector do not include time delay almost, and thus, after that the concentrator issues an ordered sampling instruction to the collector, the concentrator and the collector start data collection in the same ordered sampling time point, and the accuracy of the transformer area phase identification is improved; three-phase voltage data, collected by the concentrator, of a master meter of a transformer area and voltage data, obtained by the concentrator from the collector, of the single-phase electricity meter are processed to obtain standard deviations of the voltage of the single-phase electricity meter relative to phases of voltages of the master meter of the transformer area, and the phase connected to the single-phase electricity meter is determined according to whether voltage fluctuation curves between the single-phase electricity meter and the three phases of the master meter of the transformer area are similar on the basis of the three standard deviations.The phase identification rate of the single-phase electricity meter in the transformer area can be improved.
Owner:NINGBO SANXING MEDICAL & ELECTRIC CO LTD

Intelligent interaction method based on holographic technique

The invention discloses an intelligent interaction method based on holographic technique. The intelligent interaction method is based on a holographic projection system, and the holographic projection system comprises holographic projection equipment, a voice information collecting subsystem and a body sensing information collecting subsystem. The intelligent interaction method specifically comprises the following steps of converting a video source and a 3D (three-dimensional) model into a multi-thread interactive holographic image source; enabling a system to bind a command; holographic projecting; capturing the voice and body sensing command of the user; analyzing and processing the data; realizing the intelligent interacting function, and the like. The intelligent interaction method has the advantages that the problems of interaction of the holographic projection source and the time delay of traditional video conversion are solved, the identifying rate of voice identification and body sensing interaction is improved, the use memory of the system is reduced, and the running speed is improved.
Owner:周俊达

Optimal attitude matching-based moving base transfer alignment time delay compensation method

InactiveCN104748761AImprove Transfer Alignment AccuracySolve the time delay problemNavigation by speed/acceleration measurementsTime delaysEnvironmental geology
The invention discloses an optimal attitude matching-based moving base transfer alignment time delay compensation method. The method comprises carrying out coarse alignment on an inertial navigation subsystem by navigation information of an inertial navigation main system, respectively carrying out navigation calculation by the inertial navigation main system and the inertial navigation subsystem, transmitting rate and attitude information to the inertial navigation subsystem by the inertial navigation main system, respectively acquiring strapdown matrixes of the inertial navigation main system and the inertial navigation subsystem according to the inertial navigation calculation result, simultaneously, constructing an installation angle recourse matrix of the inertial navigation subsystem, constructing observed quantity in the inertial navigation subsystem to obtain speed difference and measurement misalignment angle of the inertial navigation main system and the inertial navigation subsystem, building a strapdown inertial navigation system state equation, a system observation equation and system observed quantity, carrying out Kalman filtering iterative computation to obtain transfer alignment time delay estimated values of the inertial navigation main system and the inertial navigation subsystem, and carrying out compensation to obtain an inertial navigation subsystem attitude misalignment angle after time delay compensation. The method realizes accurate time delay estimation and compensation and has a wide use range.
Owner:NANJING UNIV OF SCI & TECH

Memory device and data access method for memory unit

The invention relates to a data access method for a memory unit, comprising the following steps of: (1) storing a plurality of commands received from a host computer into a command queue; (2) calculating the ranges of logical addresses accessed by the commands; (3) selecting a plurality of write commands from the commands, wherein the ranges of logical addresses accessed by the write commands areoverlapped; (4) merging a plurality of of write data corresponding to the write commands into a merged write datum according to the ranges of the logical addresses accessed by the write commands if aread command or a plurality of read commands are not inserted among the write commands; and (5) sending a merged write command and the merged write datum to the memory unit so as to drive the memory unit to execute the write command. The invention also relates to a memory device. The system performance is improved by the merging application of the plurality of write commands in which the ranges of the logical addresses accessed by the write commands are overlapped and the merging application of a plurality of write commands in which the ranges of logical addresses accessed by the write commands are positioned on the same page of the memory unit.
Owner:SILICON MOTION TECH CORP

Zoom optical system for collecting weak optical signals

The invention discloses a zoom optical system for collecting weak optical signals. The system consists of thirteen lenses with focal lengths being positive, negative, positive, positive, negative, positive, negative, negative, positive, positive, negative, positive and positive in sequence from an object plane. The system is mainly used for effectively coupling a weak optical signal into an optical fiber, thereby facilitating data acquisition of a rear-end CCD. For an actual application scene, the system is designed as a zoom system, and the object distance ranges from 50 mm to 200 mm. In order to improve the optical fiber coupling efficiency, parameters of image points on the axis of the optical system are accurately designed, the root-mean-square diameter of the image points ranges from100 micrometers to 150 micrometers, and the divergence angle 2alpha of the image points on the axis is 30.6 degrees. Not only can optical fibers be effectively coupled, but also single-optical-fiber coupling or multi-optical-fiber-bundle coupling can be satisfied for different application scenes. The working waveband of the system covers visible light and part of near-infrared light wavebands, andvarious aberrations are well corrected.
Owner:WANXIN OPTICAL GRP +1

Interconnection method, system and device

The embodiment of the invention provides an interconnection method, system and device. The method is applied to a first main device, the first main device is a device with the highest priority in a first local region network of the interconnection system, the first local region network further comprises a plurality of sub-devices. The method comprises the following steps: obtaining a report event sent by the first sub-device, wherein the first sub-device is one of a plurality of sub-devices under the first local region network; determining a response behavior corresponding to the reported event and a second sub-device executing the response behavior according to a preset rule; and sending an execution instruction to the second sub-device, wherein the execution instruction is used for indicating the second sub-device to execute the response behavior. According to the scheme provided by the embodiment of the invention, the reported event can be quickly responded, and the problem of time delay of an interconnection system based on a wide region network is solved without reporting and responding level by level through a unified server and by means of the wide region network.
Owner:HANGZHOU EZVIZ SOFTWARE CO LTD

Circuit and method for shortening switching dead time of network card power supply

The invention provides a circuit and a method for shortening the switching dead time of network card power supply. According to the invention, a main power supply in-place state detection unit is removed, a switching control line is added, and a control source is replaced, so that time delay in a signal transmission process can be solved, and the voltage change is rapidly detected. The switching dead time is shortened and the production cost is reduced by controlling the switching-on speed of the NMOS and the PMOS during switching. In addition, the situation in which a network card leaks electricity in an S5 state when an NCSI cable is not connected is avoided by using the P3V3_ DUAL as a pull-up source of a network card chip.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD

Energy detection apparatus and method thereof

An energy detection apparatus and method for detecting energy is disclosed. The energy detection apparatus and method in the present invention obtains a new energy detection value by subtracting a previously sample-averaged value from a current output energy detection value and then adding an absolute sampled value. Thus, the apparatus and method of energy detection in the present invention is capable not only of saving cost due to no demand for memories but also of providing real-time detection with no time delay.
Owner:SUNPLUS TECH CO LTD

Real-time man-machine interaction system in virtual scene

The invention discloses a real-time man-machine interaction system in a virtual scene. The system comprises a visual attention area prediction module used for mutation detection and a behavior prediction module based on visual attention area characteristics. Wherein the visual attention area prediction module receives an input video frame sequence, carries out target information detection, smoothmotion detection and mutation information detection in sequence to obtain a visual saliency map, and carries out visual attention area extraction on the visual saliency map to obtain an attention areamap; and the behavior prediction module is used for predicting user behaviors by utilizing the characteristics after carrying out characteristics on the user visual area and the video content. According to the invention, the feedback behavior of the user after observing the video is predicted by inputting the video content observed by the user, so that the method can better operate and can cope with a smoothly changing scene in the presence of sudden changes in the scene.
Owner:SHANGHAI JIAO TONG UNIV

VoIP (voice over internet protocol) communication method, VoIP communication method, terminal and server based on channel

An embodiment of the invention provides a VoIP (voice over internet protocol) communication method, a VoIP communication method, a terminal and a server based on a channel. The VoIP communication method based on the channel comprises the following steps of ringing by a receiver after the receiver receives a calling request forwarded by a voice exchanging server; establishing connection on the channel established on the voice exchanging server; and joining the receiver in the channel so that the receiver can be communicated with a caller after the receiver receives an answering command inputted by a user. By the VoIP communication method, the channel is established for the caller by the voice exchanging server in advance; the receiver is connected with the channel during ringing; after receiving a command, the receiver transmits channel joining confirming information to the voice server; after the channel joining confirming information is confirmed, the receiver joins in the channel which is established by the voice exchanging server in advance, and the receiver and the caller are in communicated connection to each other and are communicated with each other; and the caller does not need to wait. The problem of time delay of the existing VoIP communication method is solved, and the communication experience of the user is improved.
Owner:BEIJING QIHOO TECH CO LTD

Sleep belt and membrane switch

The application relates to the field of sleep belt technology, and particularly relates to a sleep belt and a membrane switch. The sleep belt comprises the following components: a main controller anda sensing circuit connected thereto; a membrane switch, which comprises a first contact circuit, a second contact circuit and a middle spacer layer, and the middle spacer layer is disposed between thefirst contact circuit and the second contact circuit, the first contact circuit and the second contact circuit are connected to the sensing circuit, the middle spacer layer is provided with a throughhole and is made of an elastic material; when the sleep belt is pressed, the middle spacer layer is compressed in order to ensure contact of the first contact circuit and the second contact circuit through the through hole, and a contact signal is generated in the sensing circuit and the contact signal is transmitted to the main controller. When the user lies on the sleep belt, the main controller can quickly know that the user is lying on the sleep belt through the membrane switch; so that the sleep belt is more sensitive when sensing whether the user is on the sleep belt, the induction delay is reduced, and further the sleep band and the external device can respond in time in order to enhance the user experience.
Owner:SHENZHEN H&T DATA RESOURCES & CLOUD TECH LTD

Portable slope runoff water and sand collecting tank

The invention relates to a portable slope runoff water and sand collecting tank. The portable slope runoff water and sand collecting tank comprises a rain shielding plate, a beam flow plate, an anti-splash plate, a low roughness plate, a backwashing sealing plate, a lower baffle plate and a water outlet pipe. The rain shielding plate, the beam flow plate, the low roughness plate and the lower baffle plate form a closed triangular water and sand collecting tank, runoff of a runoff plot is quickly collected to the water outlet pipe, and the runoff volume and the sediment concentration are collected in real time by a sensor installed at the lower end of the water outlet pipe; and the portable slope runoff water and sand collecting tank is built at the downstream of the runoff plot, the anti-splash plate is flush with the lower edge of the runoff plot in spatial arrangement, the low roughness plate is in smooth transition with the ground of the runoff plot, and the gradient of the low roughness plate is slightly larger than that of the runoff plot. The portable slope runoff water and sand collecting tank is suitable for newly building and rebuilding a water and sand collecting device of a fixed runoff plot, and is also suitable for collecting runoff sediment in a field temporary runoff test, the accuracy of measured data of the slope runoff sediment can be improved, and the what you see is what you measure the runoff sediment in the slope runoff is achieved.
Owner:安徽省(水利部淮河水利委员会)水利科学研究院(安徽省水利工程质量检测中心站)

AC motor driver DC bus ripple voltage prediction and compensation method and device

The present invention provides a method and device for predicting and compensating DC bus ripple voltage of an AC motor driver, using the predicted value of DC bus voltage, performing voltage compensation calculation through a ripple voltage compensation algorithm, and obtaining Ualpha* and Ualpha* required by the SVPWM space vector modulation algorithm Ubeta*, then execute the SVPWM space vector modulation algorithm, set the PWM buffer register, update the flag, and the CPU will automatically load the new value and output the PWM waveform in the next reload cycle. The present invention solves the problem of time delay in the implementation of the DC bus voltage sampling and compensation method in the prior art, performs precise compensation control on the DC bus ripple voltage, and avoids the distortion of the pulse width modulation output of the driver as much as possible, and the distortion of the output voltage and current waveform , reduce the output harmonic content and improve the driving performance of the driver.
Owner:天索(苏州)控制技术有限公司

Equipment touch delay solving method and device, computer equipment and storage medium

The invention discloses an equipment touch delay solving method and device, computer equipment and a storage medium. The invention belongs to the technical field of mobile terminal operation experience optimization. The method comprises the following steps of: modifying a link touch response program in the webpage processing program kernel; wherein the link response program comprises a first timerwhich starts to time after receiving a first touch on a link before modification; entering a first branch sub-program of the link when a second touch on the link is not received after the first timerreaches a preset time threshold value, and executing a first processing when the second touch on the link is received before the first timer reaches the preset time threshold value, after modification, deleting the first timer and the second branch subprogram, changing the condition of the first branch subprogram from a second touch which is not connected to the butt link after the first timer reaches a preset time threshold value to a first touch which is used for receiving the butt link. The problem of time delay in the prior art is solved.
Owner:PINGAN PUHUI ENTERPRISE MANAGEMENT CO LTD

Time delay compensation method for moving base transfer alignment based on optimal attitude matching

The invention discloses an optimal attitude matching-based moving base transfer alignment time delay compensation method. The method comprises carrying out coarse alignment on an inertial navigation subsystem by navigation information of an inertial navigation main system, respectively carrying out navigation calculation by the inertial navigation main system and the inertial navigation subsystem, transmitting rate and attitude information to the inertial navigation subsystem by the inertial navigation main system, respectively acquiring strapdown matrixes of the inertial navigation main system and the inertial navigation subsystem according to the inertial navigation calculation result, simultaneously, constructing an installation angle recourse matrix of the inertial navigation subsystem, constructing observed quantity in the inertial navigation subsystem to obtain speed difference and measurement misalignment angle of the inertial navigation main system and the inertial navigation subsystem, building a strapdown inertial navigation system state equation, a system observation equation and system observed quantity, carrying out Kalman filtering iterative computation to obtain transfer alignment time delay estimated values of the inertial navigation main system and the inertial navigation subsystem, and carrying out compensation to obtain an inertial navigation subsystem attitude misalignment angle after time delay compensation. The method realizes accurate time delay estimation and compensation and has a wide use range.
Owner:NANJING UNIV OF SCI & TECH

An array substrate row driving circuit

The invention provides an array substrate row driving circuit, which comprises a plurality of cascaded array substrate row driving units. The nth array substrate row driving unit comprises a pull-up circuit, a pull-down circuit, a pull-down holding circuit, a capacitive circuit and an output circuit, wherein the capacitive circuit is respectively connected with a grid signal point and a pull-down holding circuit of the (n-1)th array substrate row driving unit and used for controlling the potential o the grid signal point according to potential variations of the pull-down holding circuit of the (n-1)th array substrate row driving unit. The array substrate row driving circuit provided by the invention can reduce the time delay of horizontal scanning line signals under the premise of not increasing the number of devices and not changing the potential waveform of the grid signal point, and greatly improves the display quality of a liquid crystal display.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Channel-based voip communication method, system, terminal and server

An embodiment of the invention provides a VoIP (voice over internet protocol) communication method, a VoIP communication method, a terminal and a server based on a channel. The VoIP communication method based on the channel comprises the following steps of ringing by a receiver after the receiver receives a calling request forwarded by a voice exchanging server; establishing connection on the channel established on the voice exchanging server; and joining the receiver in the channel so that the receiver can be communicated with a caller after the receiver receives an answering command inputted by a user. By the VoIP communication method, the channel is established for the caller by the voice exchanging server in advance; the receiver is connected with the channel during ringing; after receiving a command, the receiver transmits channel joining confirming information to the voice server; after the channel joining confirming information is confirmed, the receiver joins in the channel which is established by the voice exchanging server in advance, and the receiver and the caller are in communicated connection to each other and are communicated with each other; and the caller does not need to wait. The problem of time delay of the existing VoIP communication method is solved, and the communication experience of the user is improved.
Owner:BEIJING QIHOO TECH CO LTD

MES (Manufacturing Execution System) client data caching method and system under unstable network environment

The invention provides an MES (Manufacturing Execution System) client data caching method and system under an unstable network environment. An access request of an MES client for server non-tracking information data is processed by a client data caching module; a memory data access unit of the client data caching module receives the request, and transmits the request to a memory data caching management unit for processing; the memory data caching management unit processes the request, inquires a memory data cache, returns the requested data if the memory data cache has the requested data, and transmits the request to a memory data increment query unit if the memory data cache does not have the requested data; the memory data increment query unit accesses a server and returns the received request result to the memory data caching management unit, and the memory data caching management unit adds a data increment to the memory data cache. By adopting the method and the system, the time of access of the MES client to the server non-tracking information data can be greatly reduced; and meanwhile, the method and the system can be applied to the access requirements of each level of the system client.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Static Correction Method and Device Based on Common Attitude Gather

The invention provides a static correction method and a static correction device on the basis of common-attitude trace gathers. The static correction method includes acquiring seismic data acquired by various detectors; linearly dynamically correcting first arrival time of the various trace seismic data according to preset seismic wave velocities on corresponding receiving windows; extracting the common-attitude trace gathers, respectively computing linear dynamic correction processing results of various trace seismic data in the common-attitude trace gathers and linear dynamic correction processing results of various trace seismic data in common-shot-point trace gathers to obtain static correction values of various shot points in the corresponding common-attitude trace gathers and static correction values of each detector in the common-attitude trace gathers, and carrying out static correction according to the static correction values of the shot points corresponding to the seismic data and the static correction values of the detectors in the common-attitude trace gathers. The static correction method and the static correction device have the advantages that problems in the aspect of attitudes of the detectors in plugging and unplugging procedures are considered, the seismic data are statically corrected according to the static correction values of the detectors plugged and unplugged at different time courses, and accordingly the precision and the accuracy of seismic data processing results can be improved.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Memory device and data access method for memory unit

The invention relates to a data access method for a memory unit, comprising the following steps of: (1) storing a plurality of commands received from a host computer into a command queue; (2) calculating the ranges of logical addresses accessed by the commands; (3) selecting a plurality of write commands from the commands, wherein the ranges of logical addresses accessed by the write commands areoverlapped; (4) merging a plurality of of write data corresponding to the write commands into a merged write datum according to the ranges of the logical addresses accessed by the write commands if aread command or a plurality of read commands are not inserted among the write commands; and (5) sending a merged write command and the merged write datum to the memory unit so as to drive the memory unit to execute the write command. The invention also relates to a memory device. The system performance is improved by the merging application of the plurality of write commands in which the ranges of the logical addresses accessed by the write commands are overlapped and the merging application of a plurality of write commands in which the ranges of logical addresses accessed by the write commands are positioned on the same page of the memory unit.
Owner:SILICON MOTION INC (CN)

A light splitting coupling device and method

The invention relates to the technical field of optical coupling, and particularly relates to a spectroscopic coupling device and method. The spectroscopic coupling device comprises a first lens group, a splitting pyramid, at least two filters and an image intensifier. The splitting pyramid comprises at least two reflecting surfaces. Each reflecting surface is provided with a reflecting film. The first lens group is used for collecting and collimating target light. Light outputted by the first lens group is divided into at least two beans of light by at least two reflecting surfaces of the splitting pyramid. Each beam of light in at least two beans of light is totally reflected to at least one filter in at least two filters. Light output by at least two filters is coupled to the image intensifier. According to the spectroscopic coupling device and method, the splitting pyramid can divide a spectral signal emitted by a target into at least two beams of light; at least two beams of light can reach a detector at the same time through the filters; the accuracy of signal measurement is greatly improved; and the size of the device is small.
Owner:INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS

Signal processing device, delay estimation method and echo cancellation method

The invention relates to a signal processing device comprising an echo estimation device, a capture signal temporary storage device and a delay estimation device. The echo estimation device generates an echo estimation signal according to a reference signal and a set of reflection path simulation coefficients, and compensates the echo estimation signal according to a first delay to generate a compensated echo estimation signal. The capture signal temporary storage device is used for temporarily storing the capture signal captured by the microphone device and outputting the capture signal according to the second delay so as to generate a compensated capture signal. The delay estimation device is coupled with the echo estimation device and the capture signal temporary storage device, and is used for estimating a delay adjustment amount according to the compensated echo estimation signal and the compensated capture signal, and updating the first delay or the second delay according to the delay adjustment amount. The difference between the upper limit and the lower limit of the first delay is less than or equal to 1.
Owner:REALTEK SEMICON CORP

Power supply circuit with emitter current negative feedback

The invention designs a power supply circuit with emitter current negative feedback, which is used for solving the problem that the reaction speed of an existing voltage-stabilized power supply following a subordinate load is slow, and the technical scheme for solving the problem is that the voltage of a differential connection large loop in an original power supply circuit is subjected to negative feedback; the large loop current negative feedback formed by common-base connection of the Q5, the Q6, the R5 and the R6 is changed, so that the speed and the frequency of the large loop current negative feedback from the R7 loop connected with the Vo end to the base end of the Q7 are greatly improved, and the problems that time delay is generated in the large loop negative feedback process, the power supply tracking speed is low, and the output frequency is low are solved. And the voltage stabilizing circuit can be integrated in a three-terminal voltage stabilizing block to reduce the volume. The high-speed power supply is mainly used in the field of high-speed power supplies.
Owner:王仲季

An intelligent interaction method based on holographic technology

The invention discloses an intelligent interaction method based on holographic technique. The intelligent interaction method is based on a holographic projection system, and the holographic projection system comprises holographic projection equipment, a voice information collecting subsystem and a body sensing information collecting subsystem. The intelligent interaction method specifically comprises the following steps of converting a video source and a 3D (three-dimensional) model into a multi-thread interactive holographic image source; enabling a system to bind a command; holographic projecting; capturing the voice and body sensing command of the user; analyzing and processing the data; realizing the intelligent interacting function, and the like. The intelligent interaction method has the advantages that the problems of interaction of the holographic projection source and the time delay of traditional video conversion are solved, the identifying rate of voice identification and body sensing interaction is improved, the use memory of the system is reduced, and the running speed is improved.
Owner:周俊达

Temperature prediction system and method for PCIe chip of server

The invention provides a temperature prediction method for a PCIe chip of a server, and the method comprises the steps: defining a temperature prediction model for the PCIe chip through employing a gating circulation unit of a recurrent neural network, and enabling the temperature prediction model to comprise an input end and an output end, training data of the temperature prediction model are collected according to response changes among a plurality of control variables, and the temperature prediction model is trained by using the training data at the input end, so that a training result close to the measured temperature of the PCIe chip is obtained from the output end; evaluating the training result to obtain a plurality of features which can best reflect the temperature change of the PCIe chip, performing error analysis on the training result to obtain a group of key features from the plurality of features, and forming a temperature predictor according to the key features and the temperature prediction model, and generating, by the temperature predictor, a predicted temperature of the PCIe chip. The temperature prediction method can solve the problem that the chip on the PCIe card cannot return the temperature value.
Owner:INVENTEC PUDONG TECH CORPOARTION +1

Phase identification method of station area based on synchronous sampling of concentrator and meter

The invention relates to a phase identification method of a station area based on synchronous sampling of a concentrator and an electric meter. After the time synchronization operation of the concentrator and the collector is performed, there is almost no time delay between the two, which will enable the concentrator to collect After the controller issues the scheduled sampling command, ensure that the concentrator and the collector start the data collection operation at the same scheduled sampling time point to further improve the recognition accuracy for the phase identification of the station area; The phase voltage data and the voltage data of the single-phase ammeter obtained by the concentrator at the collector are processed to obtain the standard deviation of the voltage of the single-phase ammeter to the voltage of each phase of the general meter in the station area, and judge according to the three standard deviations obtained Whether the voltage fluctuation curves between the three phases of the single-phase ammeter and the general meter of the station area are similar to determine the phase connected to the single-phase ammeter, which improves the recognition rate of the phase of the single-phase ammeter in the station area.
Owner:NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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