Transcript op[i]mn - c2

Task 3.1
Physical Interoperability
Digital transmission via analog channel – principle of operation
Sensor
Watermeter/
Pulvimeter
CB/TETRA
HDW
converter
4-20 mA
Analog
/RS232
RS 232/
VOICE
HDW
converter
STW
converter
VOICE/RS 232
RS232/TCP/IP
RS 232/UDP
OUT
Issues related to the concept:
• CB channels used to telemetry and
telecommand
• Packet Radio (KISS, AX.25) protocols
legality in Regione Puglia
• Single node transmission range
PC (SERVER)
IN
CB/TETRA
Digital transmission via analog channel – realization concept
4-20 mA
Optional
ADC
Sensor 1
Sensor 2
Watermeter
Raspberry
PI
RS232/
I2C
Voice
TNC Pi
(HDW converter)
Radiostation
(CB/TETRA)
Input
Pulvimeter
Packet Radio
TNC-Pi
Radiostation
(CB/TETRA)
Output
Voice
TNC Pi
(HDW converter)
RS232/
I2C
Raspberry
PI
Estimated hardware cost:
200 EUR per node
Raspberry PI
TCP/IP
USB
RS232
Radio
Connection
PC / Other
Devices
Digital transmission via analog channel – realization concept
4-20 mA
Sensor 1
Sensor 2
Watermeter
Hardware
ADC / Digital
integrator
RS232
Voice
TNC - X
(HDW converter)
Radiostation
(CB/TETRA)
Input
Pulvimeter
Packet Radio
Radiostation
(CB/TETRA)
Output
Voice
TNC - X
(HDW converter)
RS232
PC
Estimated hardware cost:
250 EUR per node
Main advantages of the solutions:
• Price of implementation
• Simplicity of operation
• Lack of costs related to further use of the system
Main disadvantages of the solutions:
• Integration and synchronization of the system
• Lack of certainty of connection stability
Other
Devices
Digital transmission via analog channel – example of realization
on the basis of Polish ARPS network
Polish ARPS network which allows
wireless data exchange across the
country. Communication is based
on AX.25 protocol. Infrastructure
allows connection for every user
equipped with proper radio
communication instruments.
GPRS based multisensory data acquisition – principle of operation
Remote water meter reading
4-20 mA
Sensor
TELEMETRIC
MODULE
Watermeter
GSM/
GPRS
(AB MICRO)
Pulvimeter
Sensor 2
Issues related to the conceptions which are using GPRS:
• Costs of operation related to static SIM card IP address
• GPRS range map in Regione Puglia
GPRS based multisensory data acquisition – realization concept
Other devices
supporting GPRS
communication
(telephone,
tablet)
Digital
Sensor 1
Analog
Sensor 2
Watermeter
Telemetric
module
MobiCon Family
GPRS (2G/3G/LTE)
Pulvimeter
Estimated hardware cost: 130 – 450 EUR
per node plus 500 EUR router cost
Industrial router
TK700/TK800
family
TCP/IP
PC
GPRS based multisensory data acquisition – realization concept
RS232
Sensor 1
Sensor 2
Watermeter
Pulvimeter
Analog
ADC /
RS232
Synchronizationintegration layout
Input mobile
router
e.g. Conel
company
products
Estimated hardware cost: 500 - 1000 EUR
per node depends from router version
Main advantages of the GPRS based solutions:
• No transmission range limitations
• Stability of the connection
• Higher baudrate than in radio communication
Main disadvantages of the GPRS based solutions:
• Transmission dependent from mobile operator
• Higher price than CB/TETRA based solutions
• Additional costs related with constant SIM card
IP address
Other devices
supporting GPRS
communication
(telephone,
tablet)
GPRS (2G/3G/LTE)
Output mobile
router
e.g. Conel
company
products
TCP/IP
PC running VPN
portal e.g.
SmartCluster
Network based on licensed bands
(frequencies from 433 to 868 MHZ)
principle of operation
Analog
Sensor 1
Sensor 2
ADC /
Synchronizationintegration layout
Watermeter
Pulvimeter
RS232
Radiomodem
Node 1
Node
3
Node
2
Node
1
Direct radio packet
Analog
Routed radio packet
Sensor 1
Sensor 2
ADC /
Synchronizationintegration layout
Watermeter
RS232
Radiomodem
Node 2
Node
5
Pulvimeter
Issues related to the conception:
Costs related to licensed
band frequency lease
• Minimum single node range
Node
•
4
Node
6
Analog
Sensor 1
Final node
connected to
PC
Sensor 2
Watermeter
Pulvimeter
ADC /
Synchronizationintegration layout
RS232
Radiomodem
Node 3
PC / Other
interface device
Network based on licensed bands
(frequencies from 433 to 868 MHZ)
realization concept
Analog
Estimated hardware cost: 500 -1750 EUR
per node
Sensor 1
Sensor 2
ADC /
Synchronizationintegration layout
Watermeter
RS232
SATEL
radiomodem
e.g. SATELLINE
Pulvimeter
Direct radio packet
Analog
Routed radio packet
Sensor 1
Sensor 2
Watermeter
ADC /
Synchronizationintegration layout
RS232
SATEL
radiomodem
e.g. SATELLINE
ADC /
Synchronizationintegration layout
RS232
SATEL
radiomodem
e.g. SATELLINE
Pulvimeter
Sensor 1
Analog
Main advantages of the solution:
• The most stable communication link
from presented concepts
• Network dedicated for the particular
solution
• Costs related to network maintenance
lower than GPRS solutions
Main disadvantages of the solution:
• Node range highly dependent from
topography and obstacles situated on
radio signal way
• Hard and time consuming
implementation and testing process
• Low baudrate
Sensor 2
Watermeter
Pulvimeter
PC / Other
interface device
Network based on licensed bands
(frequencies from 433 to 868 MHZ)
example of usage on the basis of Polish SMOG system
SMOG is the forecasting of air pollution
propagation system. Structure of the
system is based on SATEL radiomodems
which allows communication in frequency
of 433 MHz licensed band. System is
running in Malopolska province.
More information and current
measurements values at:
http://www.smog.imgw.pl/home
Summary
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Presented solutions are based on SECRICOM project ideas
and conclusions
All conceptions requires own software development and
integration
Tests will be the most time-consuming part of task
realization
What do we have to know before implementation
start?
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Precise requirements concerned to physical layer of the
system (measured magnitudes, number of sensors, data
storage and visualization)
Which of presented solutions is the most suitable to
requirements
Requirements related to single point transmission range
Legality limitations related to wireless transmission
(licensed bands, CB radio/TETRA telemetry channels) in
Regione Puglia
Is in the Regione Pugalia wireless radio network working,
if it is, what requirements has to be met to connect to the
network (certification, legality)