Transcript Slide 1

Real Time Data Acquisition System over
GPRS Link
Date: 6th August 2014
Background
• Manual monitoring of stack, AAQ and effluent is
time taking
• Monitoring at regular interval not feasible due to
shortage of manpower in most of the SPCBs
• Analytical calculations and preparation of analysis
reports is again time taking and not free from
human errors.
• Uploading of these manual monitoring data in the
web site of SPCBs/ CPCB takes further time and
therefore no real time data is available in the web.
Background
• No real time data was available to verify the
emission level in each hour as SPCB has been
depending on the paper based hard copy report
from plants by post.
• No facility to display the real time data to the public
to understand the prevailing situation of emission at
the factory site.
• However, paper based hard copy reports sometimes
creates doubts in the mind of public.
Background
• No automated reporting facility for the SPCB users
• No automated communication from SPCB with
plant authority to gather knowledge on the issues
related to high emission.
• No SMS facility on continuous high emission to
both plant and to SPCB.
• No automated system with SPCB to know about
the status of installation/ operation of online
monitoring systems in the industries.
Background
• Therefore it was necessary to introduce a
transparent system to record, interpret and
communicate the online monitoring data on real
time basis to avoid ambiguities.
• The GAP to link SPCB/CPCB with plant and
public is the main goal of RT-DAS (Real Time
Data Acquisition System)
RT-DAS Background
• CPCB advised all the SPCBs of the country during
2011 to install online stack / AAQ / Effluent
monitoring system and Real Time Data
Transmission to the server of SPCB and CPCB.
•
• In the first phase 25 large industries of Odisha were
instructed to install the online monitoring system to
measure the Stack emission, Ambient Air Quality
with provision of real time data transmission to
SPCB.
RT-DAS Background
• SPCB Odisha reviewed the technologies available
for Real Time Data Transmission inside country and
abroad then adopted the GPRS based RT-DAS
during 2012.
• So far 32 industries have been connected with the
RT-DAS server installed at SPCB, Odisha.
• AAQ – 44 Stations
• Stack – 74 Numbers
• Water – 2 Stations
• The detailed list of the units follows:
SL.NO
Plant Name
AAQ
Stack
Water
1
ACC Limited (Baragarh)
1
1
0
2
Bhusan Energy Limited (Dhenkanal)
1
1
0
3
Bhusan Power & Steel Limited (Rengali)
0
5
0
4
Bhusan Steel Limited (Meramundali)
1
1
0
5
Captive Power Plant, HINDALCO (Hirakud)
3
4
0
6
Captive Power Plant, NALCO (Angul)
0
1
0
7
FACOR Power Limited (Randia)
0
1
0
8
GMR Kamalanga Energy Ltd (Kamalanga)
4
2
0
9
Indian Farmers Fertilizer Coperative Ltd (Paradeep)
1
0
0
10
Indian Metal & Ferro Alloys Ltd ( 120 MW PP) (Choudwar)
0
2
0
11
Indian Metal & Ferro Alloys Ltd (Choudwar)
4
9
0
12
Jindal Stainless Ltd (Jajpur)
1
2
0
13
Jindal Steel & Power Limited (Anugul)
3
7
0
14
Jindal Steel & Power Limited (Plate Mill) (Anugul)
0
1
0
15
Jindal Steel and Power Ltd (Barbil)
1
0
0
16
JK Paper LTD (Jayakapur)
1
0
0
17
NALCO Damanjodi (Damanjodi)
2
3
0
18
Nava Bharat Ventures Ltd (Dhenkanal)
1
2
0
19
Neelachal Ispat Nigam Limited (Duburi)
1
0
0
20
NTPC Limited (TSTPS) (Deepshikha)
3
6
0
21
NTPC Limited (TTPS) (Talcher Thermal)
1
1
0
22
OCL India Ltd (Rajgangpur)
4
9
0
23
Odisha Power Generation Corporation LTD (Banaharpali)
2
1
0
24
Paradeep Phosphate LTD (Paradeep)
2
2
0
25
Rourkela Steel Plant (Rourkela)
1
0
0
26
Smelter Plant, HINDALCO (Hirakud)
1
5
2
27
Smelter Plant, NALCO (Angul)
1
3
0
28
Sterlite Energy Limited (Banjari)
0
1
0
29
Tata Sponge Iron Ltd (Joda)
3
3
0
30
Vedanta Aluminium Limited (Bhurkamunda)
0
1
0
31
Vedanta Aluminium Limited (Lanjigarh)
1
0
0
32
Visa Steel Limited (Jakhapura)
1
0
0
45
74
2
Concepts of RT-DAS
• RT-DAS (Real Time Data Acquisition System) is for
capturing remote data and transmit the data to the
destination server for displaying at users preferable
browser without any time lag.
• The data should not be captured from the local PC or
PLC to avoid any manipulation.
• The data should not be history data.
• The traffic delay should not be more than certain
seconds.
Concepts of RT-DAS
This is basically a M2M technology where the data
can be captured from the remote devices installed in
plants and transmit over a specific medium to the
destination server.
The GPRS has been chosen as the transmission
medium to transfer the remote data after considering
the following communication medium:
1.
2.
3.
4.
Public Switched Telephone Network (PSTN) i.e. land lines
UHF/VHF (Ultra High Frequency / Very High Frequency)
General Packet Radio System (GPRS)
Satellite
Transmission of data from Online analyzers to SPCB /
CPCB over internet
LOCAL PC
AAQ
Internet
SPCB /CPCB
SERVER
Data Transmission through Internet
• Sending data from plant Local PC or LAN system
might expose to manipulation.
• The program in local PC can be programmed to
reduce the value of each parameter to suit SPCB
norms.
• There might be a chance of controlling/ delaying the
transmission by switching off the Local PC showing it
as damaged or not working.
Data Transmission through Internet
• Data can be corrupted if the Local PC in industry has
virus
• Saving data in Local PC and transmitting to SPCB
does not exactly satisfy the term “REAL TIME”.
Why Y Cable?
• To avoid data manipulation and ensure real time data
transmission, Y Cable concept has been found to be
most suitable by SPCB, Odisha.
• Y Cable eliminates the chance of manipulation
completely as the data can be captured prior to local
PC.
• No chance of controlling the transmission by the
industry as the data can be captured directly from the
RS232 port / 4-20ma output of analyzer.
Why Y Cable?
• No threat of virus in case of Y cable
• As the output from analyzer can be transmitted
directly to SPCB without delay, the data can be
termed as “REAL TIME” data
• This is basically to capture the data that goes to the
local PC or PLC without disturbing the plant’s
existing system.
• Using Y Cable the analyzer’s data can be bifurcated
into two steams at the same time.
Why Y Cable?
• The first stream goes to the local PC or PLC of the
industry and the second stream goes to the DTU
(Data Terminal Unit which is the GPRS Device) for
transmission to SPCB Server over GPRS link.
• In case of analog signal from analyzer, the Dual
Channel Isolator acts as Y Cable allowing the
signal to flow to the PLC and to the DTU through a
converter circuit (Analog to Digital Converter).
Collecting data directly from AAQ using Y Cable
RS232
AAQ
Y CABLE
LOCAL PC
GPRS
Network
DTU 247 (GPRS DEVICE )
RT-DAS SERVER AT
SPCB
BHUBNESWAR
Dual Channel Isolator acts as a Y Cable in case of analog output
from Stack Analyzer
GPRS
Network
DTU 247
(GPRS DEVICE )
Y CABLE
4-20ma
CEMS
Dual
Channel
Isolator
Analog to
Digital
Converter
STACK ANALYZER
RT-DAS SERVER AT SPCB BHUBNESWAR
PLC
GSM
Global system for mobile communication
GPRS
General Packet Radio Service
BTS
Base Transceiver Station
BSC
Base Station Controller
MSC
Mobile Switching Centre
HLR
Home location register
VLR
Visitor location register
PSTN
Public Switched Telephone Network
SGSN
Serving GPRS Support Node
GGSN
Gateway GPRS Support Node
PCU
DTU &
CONVERTER
Packet Control Unit
CEMS
Real Time Data Transmission over GPRS Link
PSTN
BTS
BSC
MSC
PCU
HLR
GSM NETWORK
VLR
IP NETWORK
GPRS NETWORK
DUAL
CHANNEL
ISOLATOR
IP BASED GPRS
BACKBONE
GGSN
SGSN
PACKET DATA
NETWORK IP X2.5
PLC
SPCB
Users
RT-DAS
Server
ROUTER
ISP
Real Time Environmental Data Transmission System
LOCAL PC
GPRS
Network
BTS
Y-Cable
GPRS DEVICE
AAQ
GPRS DEVICE
PLC
STACK
Dual Channel Isolator
acts as Y-Cable in
Stack
RT-DAS SERVER AT SPCB BHUBANESWAR
Displaying AAQ and Stack data in LED Display Board at plants main Gate
4-20ma
CEMS
Dual
Channel
Isolator
ADAM
4017+
4-20ma
STACK
ANALYZER
GPRS
Network
4-20ma
RS485
DTU 247
(GPRS DEVICE )
ADAM
4520
PLC
RS232
Plants
Core
Switch
RS232 to
RJ45
Converter
RS232 to
RJ45
Converter
RS232
AAQ
Digital Display Board at
Factory Gate
PM – 75 mg/Nm3
PM10- 85ug/m3
SO2 – 25 UG/M3
RT-DAS SERVER
AT SPCB
BHUBNESWAR
Y Cable
AAQ
STATION
PC
DTU 247
(GPRS DEVICE )
Continuous High Emission Alert & SMS Communication for
transparency
Continuous High Emission triggers the SMS alert to
plant & SPCB
GPRS
DTU 247
(GPRS DEVICE )
Y CABLE
CEMS
Dual
Channel
Isolator
Network
Analog to
Digital
Converter
STACK ANALYZER
RT-DAS SERVER AT
SPCB BHUBNESWAR
PLC
SMS from the plant
arrived at SPCB Server
about the cause of high
emission and action
taken
Compatibility & Operation of RT-DAS, Odisha
• RT-DAS can be connected with online analyzers
of any make to capture the data and transmit to
the server over GPRS link – this took lot of time
to understand and fine tune the RT-DAS.
• In Odisha RT-DAS system has been connected
with various types of analyzers of different make
such as Teledyne, Thermofisher, Horiba, Sick,
Ecotech, Environment S.A, Forbes Marshall,
Emerson, Met One etc…
• The protocol of analyzer has to be matched with
the GPRS Device for communication.
Compatibility & Operation of RT-DAS, Odisha
• The measurement range of each analyzer is matched
with the front end software to display the exact value
that shows in analyzer.
• Therefore RT-DAS consisting of Pre-Processor and
an Application server is able to receive, store and
process the real time data received from various
online analyzers of different industries.
• This has reduced man power, space, infrastructure
requirement
• The operation maintenance of the RT-DAS can be
outsourced or can be run by own IT cell of SPCB /
CPCB.
Features of RT-DAS
The front end of RT-DAS is equipped with BI
(Business Intelligence) functionalities for a better
operation. The following features are available in RTDAS:
1. On-line Real-Time Trend
2. Dash Board
Publishing the report to all the authorized users of
SPCB automatically
1. 1 Hour Average Report Publishing
2. 24 Hour Average Report Publishing
Features of RT-DAS
AD-HOC Reports:
SPCB users can create the AD-HOC reports when they
need it. The reports can be saved in pdf and xls files
and mail to different user if required.
1.
2.
3.
4.
5.
1 Hour average report with Trend Chart
24 Hour average report with Trend Chart
8 Hour average report, Online Pagination View
Monthly average report, Online Pagination View
Annually average report, Online Pagination View
Features of RT-DAS
SMSC (Short Message Service Centre)
1.
2.
3.
4.
Alert SMS on high value emission
Alert SMS on error detection
On Demand/Instant SMS
Scheduled SMS
Data Backup in RT-DAS
RTU (Remote Terminal Unit) or Data Logger can be
connected just before GPRS device for saving the
analyzers data for 2 years.
Two types of data transfer can be supported by RTU
1. latest data (i.e. since last retrieval) from the
logger at a scheduled time.
2. “on-demand” data requested by the data server
(i.e. the user) for a specific date and time.
Online CSV backup (XLS format) and restore facility
has also been provided in the RT-DAS server.
Remote Observation
1. An automated trigger generates when no data
received, 4 ma-20ma settings changed, sudden
drop of output value of the analyzer reflected in
graph in front end.
2. Constant value over a period of time triggers the
event of non operation of analyzer or
manipulation.
RT-DAS for Flood forecasting in Odisha
over GPRS link
• Water Resource Department of Odisha has gone ahead
using GPRS based RT-DAS to measure Humidity, Wind
Direction, Wind Velocity, Solar exposure, Temperature,
Humidity, Rain Fall, Water Depth and Water Flow parameter
values from 107 stations and transmit all those remote data
to their RT-DAS server installed at Bhubaneswar for
simulating the Flood Forecasting model.
• The data was captured from 7 major rivers and 4 major
dams as well.
• RT-DAS is already implemented and data received by Water
Resource Department at Bhubaneswar.
Configuring the analyzer remotely – under development
Configuration
arrived in to
SPCB the
server
and data
SPCB
Serversettings
sends command
configuration
Data communication
is on HOLDget
in every
24 hours
communication
again
settings fromresumes
each analyzer
Analyzer 1
Analyzer 2
Analyzer 3
Analyzer 4
Analyzer 5
GPRS
Network
Suggestions
• Above all, Surveillance through a team of
experts through physical surprise verification
of the online analyzers and data transmission
systems of the industries should be devised.
• However, this will lead to voluntary
compliances over a period of time to achieve
the goal.
References
[1]. Siba. P. Panda, Jay Rath, A. K. Swar and Ranjita Panda,
Real time Ambient Air Quality and Stack Emission Data
Transmission through Y Cable Mode over GPRS link,
International Conference on Chemical, Bio-Chemical and
Environmental Science (ICBEE’2012) December 14-15,
2013 Singapore, pp 27-30
http://psrcentre.org/images/extraimages/1212561.pdf
[2]. Siba P. Panda, Jay Rath, A. K. Swar, Siddhanta Das, and
Ranjita Panda, "Five Y Cable and a Single GPRS Device
Transmitted the Real Time Environmental Data from
AAQMS," International Journal of Environmental Science
and Development vol. 5, no. 4, pp. 398-403, 2014.
http://www.ijesd.org/index.php?m=content&c=index&a=show
&catid=52&id=831
Live Data
The RT-DAS can be accessed by following URL:
http://117.239.117.27/ospcbrtdas
http://113.19.81.6/ospcbrtdas
References
References