FPGA Based Wireless Temperature Monitoring system using Spartan3an Starter Kit
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This project implements Temperature monitoring system for Agricultural field using Spartan3an FPGA Starter Kit. The most important factors for the quality and productivity of plant growth are temperature and humidity.
This project implements Temperature monitoring system for Agricultural field using Spartan3an FPGA Starter kit. The most important factors for the quality and productivity of plant growth are temperature and humidity. Continuous monitoring of these environmental variables gives information to the grower to better understand, how each factor affects growth and how to manage maximal crop productiveness .The optimal greenhouse climate adjustment can enable us to improve productivity and to achieve remarkable energy savings – especially during the winter in northern countries. The system itself was usually simple without opportunities to control locally heating, lights, ventilation or some other activity, which was affecting the greenhouse interior climate. For the implementation of agricultural technologies, low cost and real time remote monitoring are needed, in this sense, programmable Logic Devices (PLDs) present as a good option for the technology development and implementation.
- Xilinx ISE 10.1i or above
- Spartan3an Starter kit
- Zigbee Module
- JTAG Cable
Block Diagram for Wireless Temperature Monitoring system using Spartan3an Starter kit
The system comprises of
⇛Analog to Digital Converter
When any of the above mentioned climatic parameters cross a safety threshold which has to be maintained to protect the crops, the sensors sense the change and the fpga reads this from the data at its input ports after being converted to a digital form by the ADC. The fpga then performs the needed actions by employing relays until the strayed-out parameter has been brought back to its optimum level. Since a fpga is used as the heart of the system, it makes the set-up low-cost and effective nevertheless.
To implement a real time monitoring system for agricultural field low cost is a significant factor. In that sense programmable logic device(PLD) is a good option for the technology development and implementation, because PLD’s allow fast development of prototype and the design of complex hardware system using FPGA’S and commercial PLD’s.
Temperature for plant (flowers or vegetables) growth required is Day temperature around 26degreeC to 30degreeC Night temperature around 15 degree C to 18 degree C This temperature can be controlled using ventilation or fan pad cooling systems.
For floriculture 70% to 80% humidity should be maintained and for vegetables 60% to 70% humidity is required. Humidifiers or foggers are used to maintain this humidity range.
This project is divided into three phases:
- Identifying the appropriate sensor for measuring temperature and relative humidity. Temperature sensor to be used is RTD so that low cost aim can be successful with best stability.
- Design of controller using FPGA, sensor interface card, isolation circuit for input and output, output relay card.
- Development of a user interface software.
The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM35 thus has an advantage over linear temperature sensors calibrated in ° Kelvin, as the user is not required to subtract a large constant voltage from its output to obtain convenient Centigrade scaling.
Wireless Temperature Output Image
Digital Temperature controller which can make a Agricultural environment automated using Spartan3an Project Kit... People can control their electrical devices via Digital Temperature controller and set up the controlling actions in the computer. We think this product have high potential for marketing in the future.