June 12, 2017

A “solar hooter” protects southern Indian farms from animal raids

A low-cost “solar hooter” may keep animal intruders at bay on southern Indian farms. The device flashes a light and emits loud sounds periodically to scare off nighttime invaders.

Monkeys, rats, herons and other animals raid farmers’ fields to eat their crops. Electric fencing keeps them out, but it is prohibitively expensive for many farmers, and live wires have been known to injure people and animals. Without an assist from technology, farmers must patrol their fields at night to protect them.

Student engineers at the Indur Institute of Engineering and Technology in Siddepet in the state of Telangana have developed the hooter as a cost-effective solution.

solar hooter india crop antelope

Vipin Kumar, a farmer in Southern India, points at a herd of Nilgai antelope that raid crops. The new “solar hooter” could scare them from the fields. Photo by Anuradha Dhar/CIMMYT/Flickr

The device is composed of a controlling circuit, timer, brushless DC motor, LEDs, hooters, a battery and other components inside a plastic housing, all powered with a solar panel. The raw materials total 3000 (about US $50), but the device is not available for retail sale, yet.

“It is a pollution-free device that doesn’t require any power supply from another source. No need for daily inspection. It automatically turns on and turns off. It is economical to farmers and not harmful to any creature,” says Donthuraboina Purnachander, one of the student engineers working on the project.

The hooter has been tested with success in a field of maize, says K. Laxmi Narsimha Rao, assistant professor of electrical and electronics engineering at the institute.

The next step may be to arrange for manufacture, the students say.

Comments from the Community


  1. veereshsy05 says:

    Nice to know about this device. I am interested to build for my own use in farm. Please can I get more about technical details.

  2. albanesmolina says:

    If possible I would also like to get the design to make them myself?

  3. reddymani777 says:

    Yaa.I like this idea where it is very helpful for the farmers.20% of the crops are destroyed by the animals ,this device ll be the sollution for this.

  4. gobiga says:

    i would like to implement it around my village …could you please send the technical details

  5. Kwabi abel oppong says:

    This will be a very good solution to such a problem. But how do the various components work together to make it a success

  6. vijay says:

    It is a nice device,can i get the address of the institue or of the students those who have developed it and it should be low cost.Thanks !

  7. Rajashekar says:

    We are making solar hooters
    The first photo of hooter which you placed in this website is ours
    This was installed by zero fuel energy systems

    Contact no 7661883103

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