MAVIR – MAHALIA

Network Information System of the Transmission and Telecom Network
The aim of system MAHALIA is to engage as a complex registration system of the National Electric Energy System’s transmission and telecommunication network with those business processes of MVM, which need accurate and up-to-date network information. MAHALIA provides business processes with network information beside information on the spatial location of the transmission and telecommunication network, added by map view.

The present state of system Mahalia is the result of many years work of planning, system development and data conversion, of which main milestones are the followings:

  • Geometria won the tender invitation in 1996
  • By the end of 1997, the system plan and the pilot application of Mahalia has been completed. Concurrently, the technology instructions of data process have been worked out, which proves the data processing of Mahalia pilot database.

In 1998 the first complete version of application Mahalia has been finished based on the experiences of Mahalia pilot system. Meanwhile database processing of Mahalia went on in accordance with the evaluation experience of the pilot database. Before digital database procession the whole network documentation system has been supervised and if it was needed, new, up-dated documentation has been made by measuring, on photogrammetric way or by mobile GIS technology.

By the end of 2001, transmission and tele-communication network data process has been completed (it covers only on the grid network data process of 3,500 km cable, 24 substations, almost 10,000 appliances, more than 100,000 equipments).

Concurrently many new versions of Mahalia application have been developed, which fulfilled demands and changes, coming up during the use of the former versions. Changes are basically for the more efficient application and to simplify the database maintenance.

The transmission and telecommunication network of the complex network database, handled by Mahalia, serves as basis of the support for network, business and other complex processes.

Mahalia structures the transmission and telecommunication network’s database according to categories, which befits the work phases of the traditional network registrations. This process aims, that the user of system Mahalia can apply well-known definitions, names, activities in the daily work and can concentrate on the professional work instead of the IT actions.

The system shows the networks on maps of different scales, sections and schemes handling in a single structure together with the attributes data of the network elements. Zooming in, cutting and data content of the maps can be ruled optional from the national overview map to the drawings of the telecommunication places or frames. In case of the views, using EOV co-ordinates (all maps are of that kind), some views form a logically complete, continuous map. A synchronised transition provides the connection among the certain views. If we select a network object in any windows, which appears “simplified” (e.g. symbol, underline, outline, etc.) in a view ordered to a graphical window, it can be shown in another window and in different view. This transit exists of course conversely too, it can be applied between map and schematic, schematic and schematic views.

Mahalia is split into two areas: grid network and telecommunication registration. These two, visibly independent areas connect on several points, therefore system Mahalia handles these areas integrated, but makes it possible that users can deal also individually with the network section, relevant to their area.

Mahalia is split into two areas: grid network and telecommunication registration. These two, visibly independent areas connect on several points, therefore system Mahalia handles these areas integrated, but makes it possible that users can deal also individually with the network section, relevant to their area.

The system shows the networks on maps of different scales, sections and schemes handling in a single structure together with the attributes data of the network elements. Zooming in, cutting and data content of the maps can be ruled optional from the national overview map to the drawings of the telecommunication places or frames. In case of the views, using EOV co-ordinates (all maps are of that kind), some views form a logically complete, continuous map. A synchronised transition provides the connection among the certain views. If we select a network object in any windows, which appears “simplified” (e.g. symbol, underline, outline, etc.) in a view ordered to a graphical window, it can be shown in another window and in different view. This transit exists of course conversely too, it can be applied between map and schematic, schematic and schematic views.

Non-structured (digital documents) data can be connected to some objects as well, which can be digital photos, video and aerial photos or other documents, e.g. registrations of right of way.

To the support of the operational activity, the handling of maintenance events, the change of transmission towers, tower-appliances, ground wires, etc. are provided as well as the management of high value substation devices (e.g. transformers, breakers, disjunctors, etc.), different diagnostic and other measuring results.

Network information, stored in the system, is available in the form of pre-defined summaries, reports, statements and lists. These can be completed by printing the relevant map sections. These data are acceptable both as planning basic data and in point of view of status and environment survey.

The system is based on Oracle and FRAMME solutions. The wide-ranging availability of data is provided in a web-based environment.