Flow Measurement and Telemetry System

Telemetry is the system of measuring the flow parameters of the canal water. The instrument measures the velocity, depth and discharge in canal flow and this is also possible to be transmitted to the concerned authorities through a SIM card-enabled mechanism. Rightly positioned and used telemetry can help to know how much water each WUCS is using from the released volume of water. This in turn can help WUCS to address the “equity” issue among the farmers with varying land holding and harvesting different crops.

The system also has provision of “complete weather stations” that can help in monitoring various weather parameters such as rainfall, temperature, humidity, wind speed and direction on real-time basis. These parameters help in optimizing the irrigation water usage if an application can be devised to help the farmers in taking informed-decisions.

The two-year contract for telemetry system was awarded to M/s HydroVision GmbH in JV with Canarys Automation Pvt. Ltd on 23 November 2015. The contract includes supply and installation of the telemetry system, one-year warranty and 5-years of operation and maintenance.


Equipment details for the telemetry system in Tungabhadra Sub-basin

Component Required quantity Remarks
Transit Time flow meters–full system 24 Travel time flow meters
Rader Flow meters–full system 76 Surface velocity flow meters
Hand Held ADCPs 3 For velocity profile and distribution in the cross-section
Boat Mounted ADCPs 1 For velocity profile and distribution in the cross section
Hand Held Military grade tablet PCs 4 Field configurations
Automatic weathers stations – rain, temp, humidity, solar radiations, atmos pressure, wind direction and speed 6 Weather parameters in command area
Solar panel 100 watts, charge controller, batteries 65 Ah – 100 Ah 100 Powering the instruments
Sheds with steel doors and mounting cantilever 100 Protection and storage of instruments
GSM/GPRS Telemetry data transmission modems/ SIM cards to be purchased in the name of KNNL 100 Data transmissions

Physical & Financial Progress

All 100 locations for telemetry installation in the Tungabhadra basin have been identified including 20 locations in Gondi system. A KNNL Quality Inspection Team visited Germany for learning and quality inspection.


Telemetry Systems-Progress

S.No Projects Quantity Installed Instrument Type Security shed Installation Solar power Calibration
1 Bhadra 9 10 Transit Time Completed Completed Completed Completed
2 Bhadra 24 39 Radar Flow Completed Completed Completed Completed
3 Gondi 20 - Radar Flow In Progress In Progress In Progress In Progress
4 Upper Tunga Project 6 6 Transit Time Flow meters Completed Completed Completed By Jan 2018
5 Upper Tunga Project 5 5 Radar Flow meters Completed Completed Completed Completed
6 Singataluru LIS 3 3 Transit Time Flow meters Completed Completed Completed By Jan 2018
7 Singataluru LIS 10 10 Radar Flow meters Completed Completed Completed Completed
8 Tungabhadra 6 5 Transit Time Flow meters Completed Completed Completed Completed
9 Tungabhadra 1 - Radar Flow meters Completed Completed Completed Completed
10 Vijayanagara Canals 16 - Radar Flow meters Awaiting Modernization
Total 100 78

(as of 30 September 2017)

Out of the contract value of INR16.535 crores, payment of INR16.266 crores is made.