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Gokila, R.
- Automated Irrigation System with Pesticide Control Using a Wireless Sensor Network and GSM Module
Authors
1 Karpagam University, IN
Source
Automation and Autonomous Systems, Vol 7, No 2 (2015), Pagination: 57-60Abstract
An automated irrigation system is used to optimize water use for agricultural crops. The system has a distributed wireless network of soil-moisture and temperature sensors placed in the ischolar_main zone of the plants. In addition, a gateway unit handles sensor information, triggers actuators, and transmits data to mobile phone through GSM. The pesticide monitor unit uses a load cell sensor to measure quantity of the pesticide for the crop. An algorithm was developed with threshold values of temperature, soil moisture and load cell values which is programmed into a microcontroller-based gateway to control water quantity and pesticide. Analysis has been done to understand the crop production on a particular land and the requirement of water and pesticide for a particular crop is studied and the values are programmed into a microcontroller. Because of its energy autonomy and low cost, the system has the potential to be useful in water limited geographically isolated areas.Keywords
Automation, Pesticide, GSM, Irrigation, Measurement, Water Resources, Wireless Sensor Networks (WSNs).
- Monitoring and Traditional Analysis of Equipments Used in Indian Coal Based Thermal Power Station
Authors
Source
Automation and Autonomous Systems, Vol 8, No 5 (2016), Pagination: 135-138Abstract
In the recent trends and emerging developments in energy production, it is very essential to monitor all the equipment frequently in a thermal power plant and comparative analysis is to be done to ensure safety and proper functioning of the entire system. Coal based thermal power stations are the leaders in electricity generation in India. As resources are not abundantly available, there is a need to optimize the wastage of energy. An attempt is taken to monitor various equipments such as boiler, Turbine, Coal and Ash Handling systems, boiler feed pump etc., and their performance is analyzed through SCADA. Equipments are monitored regularly for proper functioning and analyzed for improving parameters like performance, efficiency, etc., A special concentration is given to Condition Monitoring and Vibration Analysis of Boiler Feed Pump. Through this the security of equipments are ensured and wastage of energy is reduced.
Keywords
Thermal Power Plant, Performance Evaluation and Analysis, Condition Monitoring, Vibration Analysis.- Smart Transducer Aided Protection of Motor or Generator
Authors
1 Department of ICE, Tamilnadu College of Engineering, IN
Source
Automation and Autonomous Systems, Vol 9, No 6 (2017), Pagination: 117-120Abstract
The programmable transducers can be used in the field of motor or generator protection. To overcome the error of existing system like overvoltage, under voltage and under frequency self aided programmable transducers are used. C based program is to be developed to interface the transducers and generator tripping device to the computer. The output devices are interfaced with the computer through specially designed drive circuits to energize the trip circuit of motor in case protection acts. The drive circuits consists of opto-coupler (for isolation purpose), switching transistors and PCB mounted small relays. The input circuit comprises of Transducers & A/D converter, the output circuit comprises of driving circuits for feeders. Audible alarms also can be generated through computer with the aid of buzzer circuits. The input and the output circuits are connected to the PC through an Interfacing card through pc printer port. All the transducers are connected to the PC through an A/D converter.
Keywords
Overvoltage, Under Voltage, Frequency, A/D Converter.References
- Manish Paul ,Assistant Professor, Barnali Talukdar B.Tech student ,Banani Baishya B.Tech student,” Simulation of Overvoltage and Undervoltage Protection in PSIM” International Journal of Engineering Research & Technology Girijananda Chowdhury Institute of Management and Technology ( 2014).
- G. Yaleinkaya, M. H. J. Bollen and P.A. Crossley (1999), “Characterization of voltage sags in industrial distribution systems”, IEEE transactions on industry applications, vol.34, no. 4, pp. 682-688, July/August.
- “IEEE Recommended Practice for Monitoring Electric Power Quality,” IEEE Std. 1159-1995, June 1995.
- G.A. Taylor, A.B. Burden (1997), “Wide Area Power Quality – Decision Processes and Options for Sensitive Users”, Proceedings of the 14th International Conference and Exhibition on Electricity Distribution (CIRED’97), pp. 2.30.1-2.30.5, Birmingham, UK, June.
- Performance Analysis of Various Regions of Interacting Two Tank Hybrid System using Three Mode Controller
Authors
Source
Automation and Autonomous Systems, Vol 10, No 7 (2018), Pagination: 142-146Abstract
Control of liquid level in Interacting Two Tank Hybrid System (ITTHS) is highly challenging due to variation in the area of cross section. The modelling of such hybrid systems is different from the convention modelling techniques. Modelling and designing controllers for hybrid systems is an upcoming research area. This paper describes the modelling and control of such a highly non-linear system and also implementation of PID controller. The modelling of such hybrid systems is different from the convention modelling techniques. PID controller has been designed for this process application. Piecewise linearization technique was applied for linearizing non-linear system output. For all the five regions, separate PID controller has been designed and simulated using MATLAB. The performance measures of the system are tabulated.