Central Monitoring System for Nagpur Water Treatment Distribution Management System (WDMS)
Water distribution monitoring is possible using the subsystem referred
as water distribution management system WDMS has been implemented for the
Nagpur Municipal Corporation by providing a central monitoring station
located at NMC administrative head office at civil lines, Nagpur
& local monitoring at each WTP and pumping location of entire
water distribution & supply components.The intention was to measure,
record and monitor the parameters like flow, level, pressure, residual
chlorine of, pH, turbidity, kWh consumption, voltage, current, power
factor etc. of existing and proposed
WTPs and Pumping stations of
Nagpur Water Supply for which necessary PLC,
input & output signals, sensors and transmitters shall be provided
along with suitable Telemetry / monitoring system based on radio frequency
Thus the initiative taken by NMC to set up central monitoring system for
water supply system of
which shall be open to public via centralized system and through web
enabled facility to all. The work was implemented through financial
contribution by private operator
i.e. on PPP mode. The work was awarded to M/s
Mechatronics System Pvt. Ltd. ,
prior to initiatives
Lack of monitoring system for system Input output
No accountability for water losses
No measuring system for water
Lack of water quality monitoring system
No ESR level monitoring
Lack of monitoring system for pump efficiency
Lack of data recording & monitoring
No energy monitoring
No full proof
system to handle water supply problems
Objectives & Aims
To install a real time data Monitoring & recording
water supply & distribution system
To set up communication center between end user &
To set up a e-governance, public disclosure &
transparency of water supply
To monitor Water flow / discharge from each
MBR to various elevated service reservoirs
To create mathematical model for each ESR & use
the same along with past data to
derive demand curve for each ESR.
To ensure the balance between incoming & outgoing
flow at each ESR location.
To provide levels data each reservoirs continuously 24
Residual chlorine content in water in each ESRs / GSRs
Daily flow for all ESRs / GSRs with flow meter
location by graphics display.
Graphical trending diagrams of water balance (Pie
Chart) of all ESRs / GSRs.
Water Audit charts
LPCD for each zone- Bar chart
Monitoring and control of pump parameters of pump
parameters of flow, pressure, sump level, RPM measurement and energy parameters
like kWh consumption, voltage, current, power factor etc. at each pump
Monitoring of WTP parameters of flow, pressure, level,
water pH, water turbidity, residual chlorine etc. at each WTP location.
To create & display mathematical model for on line
flow and efficiency computation for individual pump at each pumping station
along with kWh/ ML Benchmark of pumping station.
To generate & store valuable data regarding water
distribution network in, easy to analyze, digital form which can be used
for distribution chain optimization.
To provide alerts, in case of emergency, to the
appropriate authorities to quickly initiate actions for disaster management.
Sending alarm SMS messages in case emergency to NMC
engineers to connect them with the system on 24x7 basis.
To generate, store and print valuable data regarding
water distribution network in, easy to analyze, digital form which can be used
for distribution chain optimization.
Generation of bulk water audit report (hourly / daily
To make the server data available on WEB for citizens
Large Video screen shall be installed in Centarlised
Monitoring Room which shall be open to monitor
Various ESR/GSR & WTP of NMC water supply system
adopted & Implementation process
NMC has approved the project from JNNURM grant
Total project cost is Rs. 5.5 crores with PPP
contribution of 30% of project cost.
Strategy & implementation process for ESR/GSR
system shall be implemented using three levels of information system at ESRs,
GSRs & MBRs level & one level of monitoring system at
level consist of primary
sensors such as pressure, level, flow, residual chlorine sensors etc.
These field instruments which are located at various local
stations will acquire each ESRs,
GSRs, MBRs information and will communicate the information to the next
level of information processing system using standard 4-20 mA current
level shall consist of Analog/Discrete Input Module which will
communicate with the central monitoring system with Telemetry system. The
communication media shall be based on radio telemetry system.
level shall consist of Telemetry / monitoring software running on PC
located at NMC head office. The system will communicate with all the
existing and proposed ESRs, GSRs & MBRs on intermittent basis. During
each communication Telemetry system will get status of different
parameters from the above Input modules. The telemetry system
will transfer information with main server located at NMC head office.
Whenever required it should be possible to start communication with
specific above Input modules.The whole system can be monitored
and the operator can give the instructions to the local site through voice
or SMS for taking corrective action from other end. This system consists
of Remote Terminal Units at
local stations where the various parameters are connected through the
wire.These RTU’s are polled sequentially and periodically by the
central telemetry system and as per requirement it is stored / displayed,
etc. In addition to that any alarming condition at local station is
generated, is also informed immediately without waiting for sequential
polling to the central telemetry system. This system is similar to SCADA
except it does not control the equipment at remote site through RTU.
level shall consist of WDM software
system which will run in typical client-server mode.Data acquired directly
from plant using level one hardware as well as data acquired by operator
data entry shall be used as centralized plant information data. MS SQL
database shall be used for information storage. WDM software, which will
consist of different modules
offering desired functionalities as described in Section-4, will use
this database for its functioning. For implementing this level of
software Ethernet based LAN system shall be used. It will
consist of one server PC & one client PC, which includes PC used by
telemetry. Contractor shall provide required furniture for the PCs &
server. It is
under the scope of this contract to
provide all required latest software, all other peripherals and licenses
& the same shall be registered
in the name of Nagpur Municipal Corporation.
after Implementation of initiative
Centralised Monitoring System for
water supply & Distribution system.
More Accountability & responsibility on NMC
Citizens can be able to know all the components of
water supply system
Improved management information system
Since data is available on internet, online monitoring
can be possible
Zonal offices becomes more informative &
responsible to the public
Helps to water related conflicts or misunderstanding
among citizens specially during peak demand season summer
Alarm facility can lead to rapid attention to the
Deviation from the standard parameters can be
monitored & rectified.