After my Btech. degree I did Specialization in automation technology and joined in automation company, from there I got exposure in certain process control projects like water treatment plant automation, crusher automation medium level substation automation, machine automation which were all for to reduce the Human efforts in the manufacturing process and improves the quality of the product. Those were all really excited project, and I had got a opportunity to involve in the gyro sensor manufacturing machine automation for t one of the ISRO lab...
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Which has enterally different from systems that I had worked before. instead of
controlling the machines here only accumulating the data's and give instructions
to maintenance teams. I got surprised, even with a minimum number of technicians, they are effectively maintaining the system
uptime as high (for communication network output is rated on terms of up
times i.e. for tower needs to be functioned 24hrs).
Before
talking about that system, I would like to brief about the mobile
communication system, simply in mobile communication system consists of mobile
towers and Fiber networks. For tower-to-tower communication the fiber network
and microwave bands are using, nowadays towers are mostly connected with fiber
network. Other connectivity is from tower to mobile phones, for
that radio bands are using. For this, system have different
equipment's like RF antenna microwave antenna, EnodeB which is the heart of
mobile communication system, routers, and utility system like gen-set,
rectifiers and batteries. in order maintain the system at 100% uptime each
Equipment having one dedicated engineer for the maintenance coordination
Utility engineer for the power,Enodeb engineer for the Enodeb, Backhaul and IP
engineer for the routers for one engineer for fiber maintenance. With these 5
engineers and 20 technicians along with the automated maintenance system they are controls operation of 900 mobile towers in the 2
districts.
From my point of view that automated system is the vein of of the operation
team which were connects the field level technicians' engineers and higher-level managers.
The
scope of the automated system is,
•Fault monitoring
•Alarm generation
•Information about the fault module passes to corresponding
technician and engineer
•Help to find the Root cause of fault
•Spare Material movement Tracking
•Spare management
•Effective tracking of fault rectification.
In detail, once any of the equipment got faulty in the system then automated system will generate a trouble ticket (TT) and give an automated call and message to corresponding technician and engineer. That TT has to
clear within four hours. After getting the message Technician needs to go
to the tower location, which is also tracked using the software. after reaching
the site technician check the fault and he has to inform the engineer whether
any spare required for the fault rectification and engineer will book the material against that trouble ticket and mobilize the material from the
local warehouse to fault occurred location. This has to complete within the
time of four hour span otherwise first level escalation will go to the
managerial level and if there is reason manager will extend the time to 8
hours.
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