2993results about How to "Reduce maintenance workload" patented technology

An evaluation and support system of electric power device state comprises system management module for managing test process, authority, organization and personnel; data management module for classifying and managing device data such as device type, device parts, device parameter, weight ant test parameter; state evaluation management module for obtaining healthy state result of electric power device by calculating and analyzing means.

The invention discloses a method for realizing information sharing between data collection and monitoring system and geographic information system. The method includes the following steps: taking one of the data collection and monitoring system and the geographic information system as a model export party, converting an electric system model inside thereof into an electric system model document meeting public information model regulations; transmitting the converted electric system model system into another system from the data collection and monitoring system and the geographic information system as the model export party; the model export party resolves the electric system model document according to the public information model regulations and converts the data obtained through resolving into an electric system model inside the model export party. The invention can meet the regulation of physical isolation required in General Framework for Secondary System Safety Protection of National Electric Systems, and can realize excellent interface generality simultaneously.

The invention discloses a method of serial communication, wherein, master equipment is connected with at least one slave equipment; the master equipment provides a communication clock signal (CLK) to the slave equipment by a clock signal wire, notifies the slave equipment to start reading / writing operation by a synchronous signal (SYN), and transmits a slave equipment address or a register address to the slave equipment by a downstream data signal (CMD); and the master equipment transmits downstream data to the slave equipment by the downstream data signal (CMD), or the slave equipmen transmits upstream data to the master equipment by an upstream data signal (DAT). The method of serial communication comprises a serial communication method of the master equipment, a serial communication method of the slave equipment and a serial communication method for interaction of the master equipment and the slave equipment. The invention also discloses the master equipment and the slave equipment. The proposal of the invention has the advantages of easy realization, pin resource conservation and cost reduction.

The present invention discloses a pressure filter, which comprises multiple groups of filter plates, wherein the adjacent filter plates are arranged in a contact manner, and each filter plate is provided with a material channel and a pressure filtration space with a variable volume and for accommodating a material. One end of the material channel is communicated with the pressure filtration space, and the other end is communicated with the pressure filtration space of the adjacent filter plate. Each filter plate is further provided with an air channel for communicating the filter plate pressure filtration space and a liquid channel for communicating the pressure filtration space of the adjacent filter plate. Filter screens are arranged on both sides of the filter plates and are positioned inside the adjacent pressure filtration space, wherein a filter cloth is covered outside the filter screen. The pressure filter of the present invention has characteristics of fewer components, simple and reliable structure, and low equipment maintenance workload. The present invention provides a pressure filtration method. According to the pressure filtration method of the present invention, two-stage pressure filtration and one-stage drying are adopted, wherein the first stage is that a driving pump is adopted to feed the material to carry out pressure filtration, the second stage is that high pressure air pressurizes the filter cloth to carry out pressure pressing, and the third stage is that the material is dried with high temperature air, such that pressure filtration efficiency is improved, and effects of automatic material unloading and filter cloth cleaning are achieved through the high pressure air.

The invention provides an interoperation picture file checking method based on a CIM / G standard, which comprises the following steps: step 1, checking the correctness of the format of a picture file through the XML format examination, step 2, carrying out the standard conformity checking on the picture file through establishing an XML Schema file based on the CIM / G standard, and step 3, acquiring the device information of the pels in the picture file through loading corresponding database or device model information of the picture file, and carrying out the power system rule checking on the connection relation and the electrical properties of the pels in the picture file according to a power system rule after carrying out the picture-model consistency checking on the device information of the pels in the picture file. The interoperation picture file checking method, provided by the invention, can judge whether the interoperation picture file has a problem from the multiple aspects or not, and reduces the problem that information cannot be analyzed, which is caused by that data interaction correctness is influenced or the operation standard is not met, which are resulted from file format mistake.

The invention relates to a mutual access authentication method, which comprises the following steps: 1) a first entity sends an access authentication request group to a second entity, the second entity verifies whether the sign of the first entity is correct, if it is, calculates the shared primary key of the second entity; 2) the second entity generates an access response group and sends to the first entity, the first entity verifies whether the sign of the access response group is correct, if it is, calculates the shared primary key of the first entity; 3) the first entity sends an access authentication acknowledgement group to the second entity, the second entity verifies the integrity of the access authentication acknowledgement; if the verification succeeds, the shared primary keys of the first and second entities are consistent, completing the access authentication. The access authentication method of mutual authentication, provided in this invention, is based on the identity mechanism and can be used for the verification of identity validity with simple operation and wide application range.

The invention discloses a Beidou / GPS combination based safe train locating method and system. A Beidou satellite navigation system is combined with a GPS satellite navigation system, a ground differential station system, a train-mounted speedometer and a ground responder system are combined in use, and safe location of a train is realized. The system of the invention can coexist and be compatiblewith existing train locating systems, and satellite navigation is safer in the aspect of train locatin.

The invention discloses a black-start ADM (aid in decision making) supporting / training system and a method thereof. The black-start ADM supporting / training system and the method thereof solve the problems of deficiency of effective ADM tools under the condition of blackout of the prior power system, formulation of a system recovery proposal only by experience and incapability of being suitable for the current electric network requirements, and have the advantages of simple structure, convenient use, high automation degree, capability of effectively aiding in decision making for dispatchers and so on. The invention is characterized in that: the black-start ADM supporting / training system adopts a C / S architecture and consists of a black-start console module and a black-start computing server, wherein, a black-start console is a functional module which is extended on the basis of a DTS function, provides a user interface of the black-start decision supporting system, and utilizes the DTS function to exhibit and simulate a black-start proposal for achieving the aim of training the dispatchers; the black-start computing server comprises a proposal generation module, a proposal checkout module and so on and can generate a black-start operation sequence proposal by utilization of an intelligent search algorithm according to power failure areas and quickly verify the proposal.

The invention discloses a directional rock blasting crack propagation method and a directional rock blasting crack propagation device. The directional rock blasting crack propagation device consists of kerf pipes and explosive, wherein each kerf pipe is symmetrically provided with double kerfs along the longitudinal wall. During directional blasting of peripheral blast holes of a roadway or presplit blasting of an open pit slope, the kerf pipes and the explosive are filled in the blast holes to finish directional crack blasting, wherein an included angle of the kerf direction and the presplit blasting outline direction is less than 150 degrees. The energy of the explosive is preferably released along the kerf direction in a centralized way, so that a blasting fracture surface is accurately controlled, the number of blasting cracks in other directions such as a surrounding rock, a slope and the like is greatly reduced, the length for the blasting crack propagation in the direction to be protected is limited, the production efficiency is high, and the construction cost is low; the device has a simple overall structure and is convenient to use, and is particularly suitable for directional controlled blasting of a rock gangway, a tunnel and the slope.

A method for executing batch processing job includes fetching data information being used to finalize specific batch processing job, converting data information to be on-line affairs job according to preset on-line affairs conversion rule, sending said on-line affairs job to on-line affairs job processing environment for carrying out process there, receiving and storing processed result feedback from said processing environment, fetching next data information and repeating above said process till all data information is processed.

The invention relates to a general template for an automated relay protection tester and an instantiation method of the general template. The general template comprises basic template information, an IEC 61850 parameter and a protection test project. The basic template information comprises a template name, a protection network segment, a protection name, device description, a protection model, an access node and an IP address. The IEC 61850 parameter comprises a fixed protection value, a control word, a soft pressing plate and data model information of a protection event. The protection test project comprises setting value calculation and setting under the protection test project. The general template for the automated relay protection tester and the instantiation method of the general template have the advantages that the adaptation of the automated relay protection tester is improved, compared with the method that different templates are set according to protection devices of different manufacturers, by means of the general template and the instantiation method of the general template, the maintenance difficulty and the maintenance workload of the template are remarkably lowered, the operation complexity of the automated relay protection tester is lowered, and a user can conduct instantiation the template of the protection device of a specific model quickly.

The invention relates to a direct-drive combined motor which comprises a self-control permanent-magnet motor and a concentric magnetic gear. The permanent-magnet motor and the magnetic gear are integrated by adopting the sleeve-type structure or the axial series connection structure. The combined permanent-magnet motor can automatically realize the high-speed low-torque power transfer and the low-speed high-torque power transfer therein without a mechanical gear case. The motor can serve as an electric motor and a power generator.

The invention discloses an image detection-based on-line detection and correction method of a reflection angle of a heliostat. Firstly, the heliostat to be corrected and a solar facula image in the heliostat are shot through a camera, the obtained image is processed, whether the solar facula image is positioned in the central position of the heliostat or not is judged, and if the solar facula image is positioned in the central position of the heliostat, the camera is aligned with the heliostat to be corrected; otherwise, the reflection angle deviation Theta of the heliostat is calculated according to the offset of the solar facula image from the central position of the heliostat, and a normal direction of the heliostat is controlled to rotate towards a direction in which the deviation is eliminated at an angle of half the Theta; and secondly, a declination angle Theta' between an angle for the camera to be aligned with the heliostat and an angle for the heliostat to be aligned with a heat collector is calculated, and the heliostat already aligned with the camera is rotated towards the heat collector for half the Theta'. By adopting the method, the heliostat can be accurately aligned with the heat collector when a static field is mounted, and errors caused by mechanical deformation and foundation settlement during long-term running of the static field can be corrected.