At present, there is a lack of comprehensive and flexible penetration mode between existing systems and equipment in the power grid. In the existing operation and maintenance, effective integration means are needed from management to first line and from background to front. The existing power system software is usually independent of each other for different jobs, and there are still some shortcomings in the interconnection and interoperability. The mainstream software used in current power systems can be mainly divided into two categories, namely distributed software and office application software. Distributed software is currently more focused on collecting, organizing, and analyzing electronic data acquired by smart devices in power systems, and some devices require programmable functions, so that real-time technical support can be provided for operation and maintenance and regulation personnel. Office software is software required for the operation of power companies. It usually includes customer information systems, accounting affairs systems, operational analysis systems, enterprise resource management systems, interactive information response systems, weather weather systems, and geolocation information systems. system. At present, the development of the power system inspection and control system is mainly focused on the transmission line specialty, lacking a unified and coordinated development model, and lack of attention to the job site working mode and the realization of two-way penetration.
Facing the new requirements of power production, comprehensive professional management methods and the concept of “Internet +†and big data, relying on the national network intelligent inspection and control system to establish a intelligent control system for transportation inspection, while deep integration of existing software development ideas will be carried out in multiple systems. Integration, abstracting and refining the power maintenance work, displaying the system on a virtual platform, and combining the traditional grid operation mode with the software architecture and project process ideas. The main network transportation inspection intelligent control system is the background of the intelligent management and control system, which is used to master the operating status of the equipment and the working status of the personnel, so that the command center and the management personnel at all levels can take the overall situation and penetrate in real time, providing support for the technical platform. service. The platform is mainly divided into four main menus and several sub-menus. The mobile terminal is the front end of the intelligent management system. It will carry out the production operations and duties, processes, systems, standards, assessments and other elements of the professional teams such as transmission, substation, cable and electrification. Closely integrated, the "Internet +" thinking research and development of the team's mobile operating terminal system (referred to as "handle overhaul") with functions such as "operation management, team management, expert system", monitoring, directing and managing the main operations and personnel of the team. Actively promote the transformation of the team, promote the transformation of grassroots resource allocation mode and business organization mode, realize the operation and process of the maintenance team's work in the work, operation execution and duties, operation execution and system, standards, job execution and performance appraisal, homework Consistency in five aspects, such as execution and risk control, to achieve standardization, intensification, and leanness of team management.
This paper will discuss the design goals and layered structure of the main network transport intelligent control system for "Internet +", and combine the system to analyze the application examples of the main network transport intelligent control system.
1. Design of intelligent control system for main network transportation inspection
1.1 system architecture
The system is deployed in the IV area of ​​the internal network and consists of modules such as data access, database, GIS services, application services, and front-end display (browser part). The data access module is responsible for processing the data of the relevant system and storing it in the database of the main network inspection and control system. For the data provided by the data center such as PMS2.0, OMS, and unified GIS platform, the data center directly accesses the relevant data table of the data center. For the data such as the substation intelligent operation system that has not yet provided external services, the data access module uses the business system to provide data access SDK and database direct connection. For the mobile work platform, due to the real-time interaction, the plug-in is packaged, and the mobile work platform is directly interacted with in the browser, but the related static data is stored in the main network control database through the data access module. The database consists of two parts, relational data and spatial data, to maintain the best data service by selecting a dual database.
The GIS service is responsible for spatial logic computing and providing spatial data related services, and providing page services through application services. Web services are responsible for business operations and providing business access services. The front-end display uses the Google browser recommended by PM S2.0. The browsing of the system includes dynamic loading of data, cached parts required for performance optimization, and plug-ins that need to interact with related business systems in real time for quick browsing. The overall architecture of the system is shown in Figure 1.
1.2 Functional Architecture
According to the business needs of “2+2+2†(ie two penetration, two transparent, two control) of Beijing Electric Power Company, fully integrate production management characteristics and on-site operation process matching, functional modules of main network inspection and control system As shown in Figure 2, it includes 7 main modules and several sub-modules. The functional requirements are designed according to the field application. At the same time, based on the existing system development, it can interact with the existing system and can access other functional system modules by clicking.
The mobile application APP accesses the intranet secure access platform and the mobile application intranet server through the power wireless virtual private network for communication and data interaction. The intranet PC client directly connects to the intranet system server to implement system background management. The mobile application intranet server exchanges data with the data center to realize the support functions of the mobile APP and PC background management client services. The system refines the personnel behavior, transforms it into a computerized process demonstration, condenses the key steps of the field operation, and automatically matches the information and trajectory of the field operation, and provides the work task to the management and control platform for system display. The abstraction of the maintenance work, guiding the front-end work from the background, and matching the on-site maintenance process with the software process.
The system uses the data center as the intermediate buffer area, and does not need to pay attention to the specific service functions in the data interaction process. The system has a high degree of modularity, so that the internal network and the information private network can be reliably isolated to ensure the information security of the system.
2, software design architecture
The main network inspection and control system adopts B/S architecture, based on SG-UAP platform development, relational database adopts Oracle, spatial database uses PostgreSQL, software system hierarchical structure is shown in Figure 3, divided into data resource layer, exchange layer, The logical layer, the service layer, and the presentation layer. The data resource layer includes the service data of the system, the data center, the data storage of the company main network overhauling other business systems, the exchange layer provides the data interaction service between the system and the database, the logic layer is used for the task scheduling and logic calculation of the system, and the service layer provides Data access and exchange services, the display layer is responsible for displaying relevant data.
3, system application examples
In the design process, different levels of management needs were fully considered, and the system was matched with permissions and functions.
Through the overview interface (see Figure 4), you can understand the work situation of the maintenance company on the same day, and intuitively grasp the important information such as the work capacity, workstation line, risk site and job site of the overall maintenance on the day, so that you can understand the maintenance work of the day. It includes common system operation conditions, defect conditions, job site conditions, load curve conditions, personnel carrying capacity, and main tasks of power supply.
The main interface of information monitoring is shown in Figure 5. Through the information monitoring interface, you can grasp the working conditions of transmission, power transformation, cable, live working, and the main data backhaul of the site. Each interface design is displayed in a nine-square grid manner, selecting typical work scenarios and work content, and highlighting information such as on-site overdue and online monitoring of alarms. At the same time, it combines the mainstream empirical and procedural criteria to provide a reference for field operations. The information monitoring interface also integrates the power outage and non-blackout operation sites, combines the operation and maintenance work and maintenance work, and realizes the concept of full-plan and full-site work on the same day.
In the system design, it is mainly based on application orientation. The time node focused on the site returns the site status in real time through the VPN network, focusing on the implementation and quality of key tasks. The process interface is shown in Figure 6.
The GIS map can display the transmission line segments involved in the current patrol task, and access the task execution status through the monitoring process, such as time (click on the departure on the APP, you can see that the departure time has been displayed in this place), and the patrol personnel arrives and clicks to arrive. The arrival status can be displayed synchronously, including the progress of the tour, etc., and the progress of the entire job can be displayed.
Through the control system and the mobile terminal, you can directly grasp the work status of the inspection site, check the patrol trajectory, and check whether the patrol work is carried out according to the standard operation process. The trajectory monitoring function can compare the current and historical patrol trajectory of each transmission line, set a threshold and automatically alert the prompt, or send information to the on-site mobile terminal through the background to interact with the field personnel.
The production command interface (see Figure 7) is designed for managers. It is divided into five modules: on-site management, defect management, emergency management, plan management, and political power supply. It covers the main work contents of safety supervision and inspection. The related functions are traditional. The transportation inspection function provides support, which can realize the integration of multi-system and traditional working methods, intuitively display the information such as the inspection site and work progress, and realize the dynamic linking and quasi-real-time reading with the PMS system.
4, the conclusion
The main network operation inspection intelligent management system integrates the development concept of mobile internet, applies existing mainstream software development technology, integrates production experience and new types of fault diagnosis, big data analysis and image acquisition and recognition technologies in the development process to realize production. The coordination of the site and management decisions has achieved a two-way integration between the job site and technical management, which can provide support for modern power grid operation and maintenance management and implementation.
Thin film filters are usually used as infrared filters because of their long transmission wavelength. The latter is a low-level, multistage series solid Fabry Perot interferometer by alternately forming metal dielectric metal films or all dielectric films with a certain thickness with high refractive index or low refractive index on a certain substrate by vacuum coating method. The choice of film material, thickness and series mode depends on the required central wavelength and transmission bandwidth λ determine.
Optical Filters,Shot Band Filters,Bandpass Optical Filter,Longpass Optical Filter
Hanzhong Hengpu Photoelectric Technology Co.,Ltd , https://www.hplenses.com