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51results about How to "Realize check" patented technology

Remote verification system and method for telecontrol forwarding data of transformer substation

ActiveCN107612998ARealize data verificationRealize checkTransmissionChannel dataService protocol
The invention discloses a remote verification system and method for telecontrol forwarding data of a transformer substation. The system comprises a transformer substation, a dispatching master stationand an operation and maintenance center master station, wherein the dispatching master station is connected and communicated with the operation and maintenance center master station through a servicebus, and the dispatching master station and the operation and maintenance center master station are separately connected and communicated with the transformer substation through a high-performance general service protocol (GSP). According to the remote verification system and method disclosed by the invention, the following three modes of verification functions can be achieved: 1, the consistencyverification of master sub-station forwarding table data is directly implemented at the dispatching master station; 2, the operation and maintenance center master station separately performs interaction with the dispatching master station and sub-station at an operation and maintenance center at the master station side, and the consistency verification of the forwarding table data between the dispatching master station and the transformer substation is implemented; and 3, at the operation and maintenance center at the master station side, the consistency verification of all channel data and forwarding table data of different telecontrol equipment in areas I and II is implemented. According to the remote verification system and method, safe and stable operations of power grids can be reliably guaranteed through multiple remote verification.
Owner:NARI TECH CO LTD +4

Method and system for checking regulation and control information

The invention discloses a method and a system for checking regulation and control information. The method comprises the following steps that an SCD (Substation Configuration Description) file of a substation is imported into a simulation program; the simulation program sends all action messages in the substation to a telemechanical apparatus and a monitoring background at a scheduled time interval in sequence according to a content of the SCD file; the monitoring background records all received action messages; an analog master station records all received action messages forwarded by the telemechanical apparatus; and all action messages recorded by the monitoring background and all action messages recorded by the analog master station are compared by utilizing a scheduling information table of the substation. The method does not need to complete construction of a communication channel between the substation and the master station and interactively carry out work with the master station and only needs to construct a simulation environment in the substation; the regulation and control information is checked by utilizing an automated tool and means, so that the working efficiency for checking the regulation and control information is improved.
Owner:ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +2

Calculating method for fatigue strength checking of L-type flange connecting bolt and device

The invention relates to a calculating method for fatigue strength checking of an L-type flange connecting bolt and a device and belongs to the technical field of wind power generation. The method comprises following steps: first, calculating the three-section line relationship between external applied load and a screw bolt; second, obtaining equivalent fatigue load of the screw bolt according to the three-section line relationship in combination with time sequence load; then obtaining equivalent fatigue stress of the screw bolt according to the stress area of the screw bolt; then calculating allowable fatigue stress of the screw bolt according to the cycle number corresponding to the equivalent fatigue load of the screw bolt and the S / N curve of the screw bolt, and comparing the equivalent fatigue stress of the screw bolt with the allowable fatigue stress to check of the fatigue strength of the bolt. According to the method of the invention, the equivalent fatigue load is obtained according to the three-section line relation in combination with time sequence load; the process is simple and is easy to realize so as to increase the efficiency; the method can be applied in checking the fatigue strength of L-type flange screw bolts of blower fan towers; the method and device have wide application.
Owner:XUJI GRP +2

Method and system for measuring simulation friction coefficient of belt conveyor

The invention discloses a method and system for measuring a simulation friction coefficient of a belt conveyor. The method comprises the steps of online measuring the running electric power, a running belt speed and a flow distribution situation of the belt conveyor in real time, acquiring a sampled height difference spreadsheet offline through an automatic programming extraction way, and calculating the simulation friction coefficient value of the belt conveyor according to the height difference value acquired through the terrain distribution situation of the belt conveyor, the design parameters and flow distribution data array of other belt conveyors and the flow distribution data array in an area corresponding to a tilting roller. The real-time running data is utilized to precisely calculate the simulation friction coefficient under different running environments (such as the temperature, humidity and the like), so that the actual maximal conveying capacity of the belt conveyor can be efficiently controlled, the equipment can be reasonably utilized, and the service life of the equipment can be improved. A great amount of data statistics shows that the cost can be saved by 10 percent only by utilizing the method and the system to optimize the capacity of the belt conveyor with experimental evidence.
Owner:HUADIAN HEAVY IND CO LTD

E-commerce logistics management system

PendingCN109615296AAchieve acquisitionTransportation process monitoringLogisticsLogistics managementInformation mining
The invention discloses an e-commerce logistics management system comprising an order information mining module used for mining buyer address information and transaction commodity information in orderinformation; the express waybill generation module is used for generating express waybill information according to the buyer address information and the transaction commodity information, and completing express waybill basic information and an express waybill identity two-dimensional code; the package management module is used for finishing generation of a commodity transaction list, package of transaction commodities and pasting of an express waybill; and the logistics tracking module is loaded in the logistics vehicle and is used for receiving signals of the Beidou positioning system and realizing self positioning, so that real-time positioning of the logistics vehicle is realized, and the logistics tracking module communicates with the server through the Beidou module so as to upload position information and interactive information input by a driver to the server. According to the invention, real-time positioning data of cargos are acquired, so that a client can monitor the whole transportation process of the cargos, and meanwhile, the situations of wrong sending and missing sending can be avoided.
Owner:HENAN UNIV OF ANIMAL HUSBANDRY & ECONOMY

Self-service settlement checking method and system

The invention discloses a self-service settlement checking method and system. According to the method, a mobile self-service settlement device is used for carrying out settlement on purchased commodities, commodity information in the self-service settlement device is collected in real time through a checking area, and the self-service settlement device wirelessly outputs the settled commodity information; the two kinds of information are compared and checked, and whether the two kinds of information are consistent or not is judged. The system comprises the mobile self-service settlement device, a settlement data sending module, a settlement data receiving module, a data acquisition module and a comprehensive data processing module. False settlement and missed settlement in self-service settlement are prompted, an alarm is given about the unsettled commodities, the problems of omission or errors and the like during pure self-service settlement are solved, the commodity safety problem during unattended sales is solved, the self-service shopping process is improved, and the self-service settlement checking system can be used for self-service selling or unattended sales of places suchas stores, supermarkets and shopping malls and has the advantages of being low in cost, convenient to deploy and capable of being conveniently integrated into an existing commercial environment.
Owner:胡雷刚

Constant value sensitivity check method applicable to single-return-wire tandem-connection double-return transmission line distance protection

The invention discloses a constant value sensitivity check method applicable to single-return-wire tandem-connection double-return transmission line distance protection. According to the working mode, for a single-return-wire interval, a measured impedance calculation expression in fault of the single-return-wire interval is formed on the basis of the characteristic that measured impedance in fault and fault distance are in direct proportion according to a full-line circuit and system impedance parameters; for a double-return-wire interval, according to a grid structure, a circuit and system impedance parameters of a transmission line, circuits and system impedance outside a double return wire are merged to form a typical system layout of power sources at the two ends of the double return wire, then, the calculation mode with which measured impedance changes according to positions of fault points is formed according to the impedance parameters, and different calculation expressions are adopted for one-phase grounding and phase-to-phase faults; all the results are combined, the calculation expression of full-line measured impedance in one-phase grounding and phase-to-phase faults according to the positions of the fault positions is formed, the maximum value of the measured impedance in full-line fault is acquired, and the maximum value is compared with a distance protection element constant value so that the sensitivity of the distance protection element constant value can be checked.
Owner:STATE GRID CORP OF CHINA +2

Method for checking differential protection secondary circuit of transformer

InactiveCN107300684ARealize checkSolve the problem that the load test cannot be carried outElectrical measurementsEngineeringThree-phase
The invention discloses a method for checking a differential protection secondary circuit of a transformer, and belongs to the field of differential protection of an electric power system. Through a mode of arranging a three-phase large current generator on the low voltage side of the transformer, the checking method solves the problem that an on-load test of secondary connection of a differential protection current transformer of the transformer cannot be carried out because the load current of the conventional to-be-protected transformer is too low. The checking method judges whether the parameter setting of a differential protection device is correct by means of comparing the induced current, acquired by the differential protection device, of a secondary winding of the current transformer with the theoretical value. The checking method judges whether the connection of a differential protection secondary circuit is right according to the condition that whether the differential current is 0. The checking method judges whether the polarity of the current transformer of the differential protection secondary circuit is correct according to the condition that whether the induced current of the secondary winding of the same-side three-phase current transformer is in a positive phase sequence. The method is suitable for checking the differential protection secondary circuit of the transformer.
Owner:STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO +1

Adjustable six-component balance calibration device for engine ground test

The invention provides an adjustable six-component balance calibration device for an engine ground test, and solves the problems that an existing thrust calibration system only performs force calibration on a balance fixing point and cannot guarantee the loading accuracy and synchronism of multiple forces. The device comprises a base, a balance upper end electric cylinder force bearing seat, a first balance side edge electric cylinder force bearing seat, a second balance side edge electric cylinder force bearing seat, a force loading execution mechanism and a control system. The first balanceside edge electric cylinder force bearing seat is arranged on the base, and a first linear slide rail is arranged on the first balance side edge electric cylinder force bearing seat; the second balance side edge electric cylinder force bearing seat is arranged on the base; a third linear slide rail and a fourth linear slide rail are arranged on the balance upper end electric cylinder bearing seat;the force loading executing mechanism comprises a first electric cylinder arranged on the first linear sliding rail, and a second electric cylinder and a third electric cylinder which are arranged onthe second balance side edge electric cylinder force bearing seat, and comprises a fourth electric cylinder and a fifth electric cylinder which are arranged on the third linear sliding rail, and a sixth electric cylinder arranged on the fourth linear sliding rail; the control system controls the six electric cylinders to act.
Owner:XIAN AEROSPACE PROPULSION TESTING TECHN INST

A power dispatching system line state accurate analysis method

The invention provides a power dispatching system line state accurate analysis method. The line state accurate analysis method comprises the following steps of extracting the number of each line; obtaining power grid current-day event statistical information, and obtaining accident abnormal information and operation change information from the current-day event statistical information; obtaining accident abnormal information containing a line number and operation change information as an event analysis object; retrieving keywords in the event analysis objects, judging whether the line events corresponding to the event analysis objects are power failure or power transmission according to the keywords, and marking the power failure or power transmission; and for an event analysis object marked as power failure and power transmission, substituting the current, active power and reactive power at the head end and the tail end of the current line respectively into the power failure proofreading model and the power transmission proofreading model for proofreading. According to the method, checking of the line events in the power grid current day event statistical information is achieved,line state analysis is conducted based on the screened line events, the accuracy of power grid line state analysis is improved, and the analysis efficiency is improved.
Owner:STATE GRID ANHUI ELECTRIC POWER +2

Qualification examination method based on image recognition, server and storage medium

The invention provides a qualification examination method based on image recognition, a server and a storage medium, and the method comprises the steps: receiving a chronic disease qualification examination request sent by a qualification examination terminal, the chronic disease qualification examination request comprising a chronic disease qualification application file of a to-be-examined userand an identity identifier of the to-be-examined user; searching a chronic disease qualification file of the to-be-examined user in the chronic disease qualification material system according to the identity identifier of the to-be-examined user; if the chronic disease qualification file of the to-be-examined user is found, performing image recognition on the chronic disease qualification application file and the chronic disease qualification file to obtain contents of the chronic disease qualification application file and the chronic disease qualification file; and if the content of the chronic disease qualification application file is completely the same as that of the chronic disease qualification file, sending a first instruction to a qualification examination terminal, the first instruction being used for indicating that the to-be-examined user has the chronic disease qualification. According to the scheme, the chronic disease qualification auditing efficiency can be improved.
Owner:PING AN MEDICAL & HEALTHCARE MANAGEMENT CO LTD

Stone material management method and system thereof

The invention discloses a stone material management method. A stone material label is set on a stone material, and the stone material label stores stone material data; the stone material data is sent to a server in a data transmission manner; and the server sends stone material management data generated according to the stone material data to a client according to a request from the client. The stone material data comprises identity information, state information and environmental information of the stone material. The stone material management data comprises: a flow direction of the stone material specified by the client, and inventory data and / or out-storage data of various stone materials. The invention further discloses a system for implementing the above method. According to the invention, a new generation asset management system based on the Internet of things is provided, and integrates application identification, perception, short-range communication, geographic Information, etc. Fixed asset refined management including functions of Fixed asset refined management of medium and long distance identity identification, noumenon multi-information perception, spontaneous information uploading, real-time alarm locating, cloud platform high speed data processing and coverage of various application demands etc. are achieved. The management method provided by the invention has advantages of being intelligent, effective, accurate, timely and perfect in function, so that the stone material management method has a significant practical value and broad market space.
Owner:福建省智慧物联网研究院有限责任公司

Steady-state load analysis method for large aircraft tests under multiple environmental factors

The invention provides a large-scale aircraft test steady-state load analysis method under the condition of multiple environmental factors, belonging to the technical field of aircraft testing, comprising the following steps: S1, setting parameters; S2, calculating the area of ​​the insulation board of the aircraft climate laboratory; S3, calculating the aircraft climate experiment indoor lighting load; S4, calculate and compensate the fresh air heat load; S5, calculate the heat load of the fan; S6, calculate the heat load of the insulation board; S7, calculate the heat load of the solar radiation array; S8, calculate the heat load of freezing rain / snowfall conditions; 1. Calculating the heat load of the floor; S10. Calculating the heat load of the test piece object; S11. Calculating the heat load required by the refrigeration system. The invention solves the problem that the calculation of the steady-state load of the large-scale aircraft test is not perfect under the condition of multiple environmental factors at present, and the problem that the design basis cannot be provided for the type selection and configuration of the refrigeration system has the advantages of comprehensive consideration of interference factors and accurate calculation.
Owner:CHINA AIRPLANT STRENGTH RES INST

Parameter checking method, device and system based on model reference

The invention discloses a parameter checking method, device and system based on model reference, wherein the method comprises the steps: obtaining a simulation output excitation voltage basic value and an actual output excitation voltage basic value, wherein the simulation output excitation voltage base value and the actual output excitation voltage base value are obtained by simultaneously sending input unit data to the excitation simulation model and the actual excitation system, and the simulation output excitation voltage base value and the actual output excitation voltage base value are sent to an error comparator, and an error signal is obtained; sending the error signal to a least square method evaluator for evaluation, continuously modifying the model parameters of the excitation simulation model based on the evaluation result, iterating until the evaluation requirement is met, and outputting the model parameters; reading actual system parameters in the actual excitation system, comparing the output model parameters, and checking the system parameters of the actual excitation system. Herein, the parameters of an actual excitation system are verified based on the excitation simulation model, whether the performance of the actual system is weakened or not is found in time, and therefore predictive optimization maintenance is achieved.
Owner:NARI TECH CO LTD

A Checking Method for Secondary Circuit of Transformer Differential Protection

InactiveCN107300684BSolve the problem that the load test cannot be carried outAccurate settingElectrical measurementsLow voltageElectric power system
The invention discloses a method for checking a differential protection secondary circuit of a transformer, and belongs to the field of differential protection of an electric power system. Through a mode of arranging a three-phase large current generator on the low voltage side of the transformer, the checking method solves the problem that an on-load test of secondary connection of a differential protection current transformer of the transformer cannot be carried out because the load current of the conventional to-be-protected transformer is too low. The checking method judges whether the parameter setting of a differential protection device is correct by means of comparing the induced current, acquired by the differential protection device, of a secondary winding of the current transformer with the theoretical value. The checking method judges whether the connection of a differential protection secondary circuit is right according to the condition that whether the differential current is 0. The checking method judges whether the polarity of the current transformer of the differential protection secondary circuit is correct according to the condition that whether the induced current of the secondary winding of the same-side three-phase current transformer is in a positive phase sequence. The method is suitable for checking the differential protection secondary circuit of the transformer.
Owner:STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO +1

Customs port mobile charging checking device based on image processing

The invention provides a customs port mobile charging checking device based on image processing. The device comprises a machine body and a handheld rod for fixing the machine body. A camera for scanning is arranged on one side of the machine body, a display screen for feeding back a scanning effect and a checking result of the camera is arranged on the other side of the machine body, a control panel for controlling the camera and the display screen and a main power supply for supplying power are arranged in the machine body, and an auxiliary power supply for charging the main power supply is arranged on one side of the machine body. The handheld rod is detachably connected with the side wall of the machine body. The camera is used for shooting and scanning the payment bill, then payment information on the payment bill is collected and transmitted to the control panel, the control panel judges whether payment is carried out or not after entering and exiting processing, a judgment resultis fed back to the display screen, and therefore checking is conveniently achieved. The main power supply is used for supplying power to the display screen and the camera, the auxiliary power supplycan supply power to the main power supply, and the service life of the whole customs port mobile charging checking device is greatly prolonged.
Owner:ZHUHAI DAHENGQIN TECH DEV CO LTD

A method for checking the sensitivity of the distance protection setting value suitable for single-circuit series connection double-circuit transmission lines

The invention discloses a constant value sensitivity check method applicable to single-return-wire tandem-connection double-return transmission line distance protection. According to the working mode, for a single-return-wire interval, a measured impedance calculation expression in fault of the single-return-wire interval is formed on the basis of the characteristic that measured impedance in fault and fault distance are in direct proportion according to a full-line circuit and system impedance parameters; for a double-return-wire interval, according to a grid structure, a circuit and system impedance parameters of a transmission line, circuits and system impedance outside a double return wire are merged to form a typical system layout of power sources at the two ends of the double return wire, then, the calculation mode with which measured impedance changes according to positions of fault points is formed according to the impedance parameters, and different calculation expressions are adopted for one-phase grounding and phase-to-phase faults; all the results are combined, the calculation expression of full-line measured impedance in one-phase grounding and phase-to-phase faults according to the positions of the fault positions is formed, the maximum value of the measured impedance in full-line fault is acquired, and the maximum value is compared with a distance protection element constant value so that the sensitivity of the distance protection element constant value can be checked.
Owner:STATE GRID CORP OF CHINA +2

A remote verification system and method for substation remote forwarding data

ActiveCN107612998BRealize data verificationRealize checkTransmissionChannel dataService protocol
The invention discloses a remote verification system and method for telecontrol forwarding data of a transformer substation. The system comprises a transformer substation, a dispatching master stationand an operation and maintenance center master station, wherein the dispatching master station is connected and communicated with the operation and maintenance center master station through a servicebus, and the dispatching master station and the operation and maintenance center master station are separately connected and communicated with the transformer substation through a high-performance general service protocol (GSP). According to the remote verification system and method disclosed by the invention, the following three modes of verification functions can be achieved: 1, the consistencyverification of master sub-station forwarding table data is directly implemented at the dispatching master station; 2, the operation and maintenance center master station separately performs interaction with the dispatching master station and sub-station at an operation and maintenance center at the master station side, and the consistency verification of the forwarding table data between the dispatching master station and the transformer substation is implemented; and 3, at the operation and maintenance center at the master station side, the consistency verification of all channel data and forwarding table data of different telecontrol equipment in areas I and II is implemented. According to the remote verification system and method, safe and stable operations of power grids can be reliably guaranteed through multiple remote verification.
Owner:NARI TECH CO LTD +4
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