Data processing method for alternating current sampling of digital transformer station measurement and control device

The invention discloses a dynamic data window Fourier algorithm for alternating current sampling of a digital transformer station measurement and control device, and provides a new alternating currentsampling processing method aiming at the digital transformer station measurement and control device, wherein the method does not need to carry out interpolation on sampling values, and directly usesexisting adopted values to carry out computation treatment, thereby meeting measurement and control accuracy requirements and reducing realization complexity. Signal frequency is computed on the basisof fixed data window Fourier algorithm by the sampling value input by fixed sampling frequency, and then actual sampling points of each cyclic wave are calculated according to signal frequency, fixedsampling frequency and the sampling points corresponding to the fixed sampling frequency, the data window of Fourier algorithm is regulated according to the actual sampling points of each cyclic wavewhen ...

Self-adaptive leading time realizing method for synchronization function of measure and control device

The invention discloses a self-adaptive leading time realizing method for synchronization function of measure and control device. The method is characterized in that the leading time is actually measured in the operating process and automatically applied to the synchronous process and the change of the leading time in the operating process of control mechanism is dynamically tracked so that the self-adaptive leading time is realized. The method specifically comprises the following steps: (1) launching synchronously; (2) judging synchronously; (3) executing synchronous judging result; (4) detecting and measuring the leading time; and (5) processing the self-adaptive leading time. The method can efficiently reduce the working amount of periodical repair, avoid the asynchronous closing valve matter caused by inaccurate leading time, and improve the quality of electricity supplied by the system.

Full-station anti-mistaking closedown design method based on IEC61850 standard

The invention relates to an all-station system anti-misoperation lockout design method based on IEC61850 standard which processes uniform collocation management to all-station anti-misoperation lockout logic rule by method of combining with integrated anti-misoperation lockout in station control layer and dispersed anti-misoperation lockout in distance layer. A remote control interlocking is usedbetween a background monitor system in station control layer and a remote communication server, IEC61850 standard is used for communication between the station control layer and distance layer to realize data interlocking; GOOSE serve provided by IEC61850 standard among anti-misoperation lockout devices in distance layer to realize data sharing among distances and complete anti-misoperation function in distances. The method makes up for a lack of traditional anti-misoperation, provides an uniform anti-misoperation logic collocation management, ensures consistency of the anti-misoperation logic rule ...

Method, device and system for positioning terminal

The invention discloses a method, a device and a system for positioning a terminal, belonging to the communication field. The method for positioning the terminal comprises the following steps of: acquiring pre-positioning information provided by a terminal to be positioned; acquiring a girdle band region where the terminal to be positioned is located according to the pre-positioning information; acquiring the distance from the terminal to be positioned to an anchoring point according to the pre-positioning information and the information of the girdle band region; and positioning the terminalto be positioned according to the distance. The device for positioning the terminal comprises a first acquiring module, a second acquiring module, a third acquiring module and a positioning module. The terminal comprises a sending module, a receiving module and an updating module. The system for positioning the terminal comprises a positioning device and the terminal. The invention can more correctly ...

Self-adaptive leading time realizing method for synchronization function of measure and control device

The invention discloses a self-adaptive leading time realizing method for synchronization function of measure and control device. The method is characterized in that the leading time is actually measured in the operating process and automatically applied to the synchronous process and the change of the leading time in the operating process of control mechanism is dynamically tracked so that the self-adaptive leading time is realized. The method specifically comprises the following steps: (1) launching synchronously; (2) judging synchronously; (3) executing synchronous judging result; (4) detecting and measuring the leading time; and (5) processing the self-adaptive leading time. The method can efficiently reduce the working amount of periodical repair, avoid the asynchronous closing valvematter caused by inaccurate leading time, and improve the quality of electricity supplied by the system.

Error lock-proof function design scheme for intelligent measuring and control device

This invention relates a kind of preventing false deadlock function design method of the intellect detect and control device. It is characterized in that it can realizes the fully-automatic sweep, semi-automatic sweep, remote and trigger multiple flexible configurations mode of operation by programming the preventing false deadlock logic; the intellect detect and control device can realize the data sharing by the network and every device offers six hard deadlock junction outputs and realize the software preventing false add hardware preventing false truly; the design method concludes eleven sub function blocks: semi-automatic scan mode of operation module, hard deadlock junction control module, remote control trigger mode of operation module, logic calculation service interface module, full-automatic scan mode of operation module, this device real time data base module, logic calculation real time data base module, GOOSE communication service module, signal acquisition unit module, UDP ...

Misoperation-preventive locking realizing system and method in transformation process of substation

The invention discloses and provides a misoperation-preventive locking realizing system and method in the transformation process of a substation. A data interface conversion device is arranged between an original system and a novel system of the substation, so that the original system and the novel system are interacted; in the transformation process of the substation, the data interface conversion device can acquire data information of untransformed equipment for realizing the misoperation-preventive locking function of the novel system from the original system, so that the information for realizing the misoperation-preventive locking function in the novel system is complete, the normal running of the misoperation-preventive locking function of the equipment of the novel system is ensured, and further the safe and reliable running of the novel system of the substation is ensured.

Error lock-proof function design scheme for intelligent measuring and control device

A sampling monitoring arrangement for electromagnetic compatibility is experimental

The utility model discloses a sampling monitoring arrangement for electromagnetic compatibility is experimental, sampling select switch select the sample data type, and bandwidth -limited circuit carries out filtered output fundamental wave wave form to the sampling wave form of sampling select switch output, and subtraction circuit will sample wave form and fundamental wave wave form and do the subtraction wave form that must deviate, peak detection circuit detects the peak value of fundamental wave wave form, and adjustable ratio circuit differentiates coefficient calculation according to the fundamental wave wave form peak value of bandwidth -limited circuit output and the wave distortion that differentiates the output of coefficient regulating circuit and reachs wave distortion and differentiate the threshold, and comparison circuit relatively deviation wave form and wave distortion differentiates the threshold, and when the deviation wave form was greater than wave distortion anddifferentiates ...

Mobile node positioning method and device

The embodiment of the invention provides a mobile node positioning method and a mobile node positioning device. The mobile node positioning method comprises the following steps of: determining azimuth and radial distance of a mobile node relative to an anchor point; and determining the position of the mobile node according to the azimuth and radial distance of the mobile node relative to the anchor point, the intelligent antenna reference direction of the anchor point and the position information of the anchor point. By using the technical scheme provided by the embodiment of the invention, antenna cost and complexity can be reduced.

Multi-mode regulation and control and trajectory optimization method and system for intelligent reflecting surface carried by unmanned aerial vehicle

The invention provides a multi-mode regulation and control and trajectory optimization method and system for an intelligent reflecting surface carried by an unmanned aerial vehicle. The method comprises the following steps: constructing a multi-mode unmanned aerial vehicle communication system model; the multi-mode unmanned aerial vehicle communication system model comprises two multi-mode unmanned aerial vehicles and a plurality of ground users; the multi-mode unmanned aerial vehicle is an unmanned aerial vehicle integrating multiple antennas and an intelligent reflecting surface at the same time; according to the multimode unmanned aerial vehicle communication system model, establishing a multivariable joint optimization model by taking maximization of the minimum ground user average throughput as a target; decoupling and converting the multivariate joint optimization model into a plurality of sub-problem models by using a block coordinate descent method; and according to a convex optimization ...

Unmanned aerial vehicle network distributed trajectory planning method, system, device and medium

The invention provides an unmanned aerial vehicle network distributed trajectory planning method, system and device and a medium, and the method comprises the steps: building a system model of a multi-unmanned aerial vehicle system with the maximum data transmission capability of the multi-unmanned aerial vehicle system as an optimization target; obtaining observation information and action information, and creating a reward model according to the observation information and the action information; according to the historical data of the multi-unmanned aerial vehicle system, predicting the next time slot track points of all the unmanned aerial vehicles, and inputting the next time slot track points of all the unmanned aerial vehicles into a Bayesian prediction model to obtain reward information; and acquiring a part of observation values of each unmanned aerial vehicle in the system model, and predicting an optimal action from action prediction information according to the part of observation ...

Substation secondary equipment constant value data processing system and method

The invention discloses a constant value data processing system and method for secondary equipment of a transformer substation, the secondary equipment of the transformer substation uses a FLASH chip to store a constant value file, and the constant value file is frequently modified and is very critical. Two independent constant value memory areas are opened up in an RAM (random access memory) of equipment, the equipment is powered on to analyze constant value files in FLASH and store the constant value files in a first constant value memory area according to a specific array structure, meanwhile, a constant value array in a ferroelectric chip is read and stored in a second constant value memory area, the two memory areas are compared, and if the two memory areas are consistent, the constant value array in the first area is used. And if the comparison is inconsistent or the fixed value file is failed to read, using a second-area fixed value array, copying the second-area fixed value array ...

Full-station anti-mistaking closedown design method based on IEC61850 standard

The invention relates to an all-station system anti-misoperation lockout design method based on IEC61850 standard which processes uniform collocation management to all-station anti-misoperation lockout logic rule by method of combining with integrated anti-misoperation lockout in station control layer and dispersed anti-misoperation lockout in distance layer. A remote control interlocking is used between a background monitor system in station control layer and a remote communication server, IEC61850 standard is used for communication between the station control layer and distance layer to realize data interlocking; GOOSE serve provided by IEC61850 standard among anti-misoperation lockout devices in distance layer to realize data sharing among distances and complete anti-misoperation function in distances. The method makes up for a lack of traditional anti-misoperation, provides an uniform anti-misoperation logic collocation management, ensures consistency of the anti-misoperation logic ...

Node locating method and communication device

The embodiment of the invention discloses a node locating method and a communication device, belonging to the network communication field. The method comprises the following steps: presetting at least one transmitting power level, using each power level in the transmitting power level as the current transmitting power level; adopting the current transmitting power level to transmit a locate request; receiving a returned locate reply, wherein the locate reply contains the position sending the locate reply node and the corresponding trust level; selecting the preset number of nodes in the nodes returning locate reply as reference modes according to the received position of the locate reply and the corresponding trust level, calculating the position of the node to be located according to the reference modes; and after calculating the position under in at least one power level, using the calculated positions to calculate the center of mass, and obtaining the final position of the node to be ...

Constant value display method of multi-functional measuring and control device

The invention discloses a constant value display method of a multi-functional measuring and control device. Without changing an original constant value acquired by an original measuring and control device, the constant value display method constructs a configuration file according to a display demand to realize to convert between the original constant value and a constant display value needed for a client. According to the constant value display method of the multi-functional measuring and control device, the configuration file is configured according to the user demand, the constant display value is displayed according to the demand, and the problems that an existing display method includes constant value items for which the user does not care, and the constant value items are easy to produce ambiguity and very inconvenient for the user in the use process are solved.

Data processing method for alternating current sampling of digital transformer station measurement and control device

The invention discloses a dynamic data window Fourier algorithm for alternating current sampling of a digital transformer station measurement and control device, and provides a new alternating current sampling processing method aiming at the digital transformer station measurement and control device, wherein the method does not need to carry out interpolation on sampling values, and directly usesexisting adopted values to carry out computation treatment, thereby meeting measurement and control accuracy requirements and reducing realization complexity. Signal frequency is computed on the basis of fixed data window Fourier algorithm by the sampling value input by fixed sampling frequency, and then actual sampling points of each cyclic wave are calculated according to signal frequency, fixed sampling frequency and the sampling points corresponding to the fixed sampling frequency, the data window of Fourier algorithm is regulated according to the actual sampling points of each cyclic wave when ...