Upload
kiley
View
61
Download
2
Embed Size (px)
DESCRIPTION
Real Time Data Acquisition System over GPRS Link. Presented by: Dr. Akhila Kumar Swar Senior Environmental Engineer SPCB, Odisha. Date: 6 th August 2014. Background. Manual monitoring of stack, AAQ and effluent is time taking - PowerPoint PPT Presentation
Citation preview
Real Time Data Acquisition System over GPRS Link
Date: 6th August 2014
Presented by: Dr. Akhila Kumar Swar
Senior Environmental EngineerSPCB, Odisha
• 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
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
• 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
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. Public Switched Telephone Network (PSTN) i.e. land lines 2. UHF/VHF (Ultra High Frequency / Very High Frequency)3. General Packet Radio System (GPRS) 4. Satellite
AAQ LOCAL PC
Transmission of data from Online analyzers to SPCB / CPCB over internet
SPCB /CPCB SERVER
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”.
Data Transmission through Internet
• 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?
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).
Y CABLE AAQ LOCAL PC
DTU 247 (GPRS DEVICE )
Collecting data directly from AAQ using Y Cable
GPRS Network
RT-DAS SERVER AT SPCB
BHUBNESWAR
RS232
Y CABLE
STACK ANALYZER
PLC
DTU 247 (GPRS DEVICE )
Dual Channel Isolator acts as a Y Cable in case of analog output from Stack Analyzer
Analog to Digital
Converter
RT-DAS SERVER AT SPCB BHUBNESWAR
Dual Channel Isolator
GPRS Network
CEMS
4-20ma
GGSNSGSN
VLR
PSTN
GSM NETWORK
GPRS NETWORK
Real Time Data Transmission over GPRS LinkGSM 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 Packet Control Unit
DTU & CONVERTER
PLC
DUAL CHANNEL ISOLATOR
CEMS
BTS BSC
HLR
MSC
IP NETWORK
PCU
IP BASED GPRS BACKBONE
PACKET DATA NETWORK IP X2.5
SPCB Users
RT-DAS Server
ROUTER ISP
PLC
STACK
B T S
RT-DAS SERVER AT SPCB BHUBANESWAR
GPRS DEVICE
Dual Channel Isolator acts as Y-Cable in
Stack
Real Time Environmental Data Transmission System
AAQ
Y-Cable
LOCAL PC
GPRS DEVICE
GPRS Network
STACK ANALYZER
DTU 247 (GPRS DEVICE )
Displaying AAQ and Stack data in LED Display Board at plants main Gate
RT-DAS SERVER AT SPCB
BHUBNESWAR
AAQ STATION
DTU 247 (GPRS DEVICE )
PC
ADAM 4017+
PLC
Dual Channel Isolator
CEMS
Y Cable
ADAM 4520
AAQ
RS232
Plants Core Switch
RS232 to RJ45 Converter
RS232 to RJ45 Converter
Digital Display Board at Factory GatePM – 75 mg/Nm3PM10- 85ug/m3SO2 – 25 UG/M3
GPRS Network
4-20ma 4-20ma
4-20ma RS485
RS232
Y CABLE
STACK ANALYZER
PLC
DTU 247 (GPRS DEVICE )
Continuous High Emission Alert & SMS Communication for transparency
Analog to Digital
Converter
RT-DAS SERVER AT SPCB BHUBNESWAR
Dual Channel Isolator
CEMS
Continuous High Emission triggers the SMS alert to plant & SPCB
GPRS Network
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 RT-DAS:
1. On-line Real-Time Trend2. Dash Board
Publishing the report to all the authorized users of SPCB automatically
3. 1 Hour Average Report Publishing4. 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. 1 Hour average report with Trend Chart2. 24 Hour average report with Trend Chart3. 8 Hour average report, Online Pagination View4. Monthly average report, Online Pagination View5. Annually average report, Online Pagination View
Features of RT-DAS
SMSC (Short Message Service Centre)
1. Alert SMS on high value emission2. Alert SMS on error detection3. On Demand/Instant SMS4. 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 RTU1. 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
Data communication is on HOLD in every 24 hours SPCB Server sends command to get the configuration settings from each analyzer
Analyzer 5
Analyzer 4
Analyzer 3
Analyzer 2
Analyzer 1
Configuration settings arrived in SPCB server and data communication resumes again
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.
[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 27-30http://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
References
Live Data
The RT-DAS can be accessed by following URL:
http://117.239.117.27/ospcbrtdas
http://113.19.81.6/ospcbrtdas
References
THIS IS NOT THE END BUT THE BEGINNING OF A NEW
ERA IN RT-DAS WORLD.
References
Thank you for your time…….