We react on changes of corporate tariffs of KievStar

About the problem

Unfortunately, recently a lot of enterprise customers of mobile operator KievStar have faced with the increase of value of the GSM traffic for poll of objects. It is connected with increase of tariffs for data transmission (CSD) of mobile operator KievStar in some tariff plans in five-six times.

Because of requests of our clients it was accepted the decision to develop a technique of transparent transition of use of  GPRS and, accordingly, decrease of expenses to former levels.

Details for specialists of operation

19/09/2010 were approached works on connection of the program of forming of reports VM Report to database PostgreSQL/PostGIS.The program allows to build reports of movement of objects, fuel and other parametres. In the new version users have an opportunity to build reports both by data software VM Server, and also from a database of the SQL-server (PostgreSQL/PostGIS).Earlier we developed a program component of the server of acceptance of the data from the equipment the Drozd in base PostgreSQL/PostGIS (Technical project IS25-01.115RU). Thus, program VM Server can be replaced by two other program components that will allow to refuse from the mode of data transmission CSD and to pass to the mode GPRS.

For the use of GPRS is needed:

• to buy or rent a computer-server that has constant connection to Internet network, having constant IP-address;
• to install on the computer-server software  IS25-01;
• to install on the computer-server software databases PostgreSQL/PostGIS;
• to provide access to the server through the Internet or in a local network for the personnel working with software VM Report;
• to activate mode GPRS on corporate packets of Drozd objects;
• to fulfil adjustment of modules Drozd (update of adjustments is carried out automatically for all modules through VM Server).

Calculation of costs on an example of one of clients

The system used one channel of poll in mode CSD on 150 mobile objects.

The monthly fee for mobile communication constituted 25 grn + 7 % for each object. Costs for poll of one object in mode CSD constituted nearby 6,7 grn in a month at reception of a database four times a day. The information on moving of all objects was transferred directly to the computer of the dispatcher in a online mode  (UDP by markers through GPRS).

Structure of expenses before increase of tariffs:

• license fee 150 * 26,75 = 4012,5 grn
• poll of one objects CSD 150 * 6,7 = 1005 grn

Total: 5017,5 grn

Expectational costs after increase of tariffs:

• license fee 150 * 26,75 = 4012,5 grn
• poll of one objects CSD 150 * 40,2 = 6030 grn

Total: 10042,5 grn

At transition to mode GPRS the traffic will be paid at the expense of already established license fee. To this sum it is necessary to add value of rent of the server or purchasing ON IS25-01, and also access cost to a network the Internet from work places of dispatchers.

Expectational costs if to use of GPRS:

• license fee (includes 20 Mb of traffic GPRS that it is enough for online supervision) 150 * 26,75 = 4012,5 grn
• rent of the virtual server, including the Internet traffic (the prices www.lucky.net) ~520 grn
• access to the Internet network for work of dispatchers (the price of Utel) ~250 grn

Total: 4782,5 grn

The definitive sum of costs of the given client can be a little above former, however is considerable below expectational 10 thousand grivnas.