Animal repellents from agricultural fields

Abstract

Crop damages inflicted by animals are one of the biggest challenges throughout the world. Animals such as pigs, monkeys, and many others may cause Spartan damage to crops. They can damage the plants by feeding on plant parts or only by organization more than the field and squashing in excess of the crops. Therefore, animals may easily cause significant yield losses and incite additional financial problems. In order to decrease the problems or damages caused by animals to the farmer which destroys the farm, there are many ways. The ways include haunting the animals, producing the sounds manually, and using chemical compounds for repelling birds and animals; some are regulated by state and federal laws while others are untested. So, the actuation of ultrasonic devices can repel hazardous animals by using the principles of bioacoustics. Humans have a hearing range of 20 Hz–20 kHz. Similarly, each and every animal as its individual hearing range like rats can hear from 200 Hz to 90 kHz; snakes can hear from 80 Hz to 1 kHz, now over the whole hearing range only in a certain range, known as a most sensitive hearing section which helps to repel animals. An up-gradation to the preexisting methods, utilizing ultrasonic frequencies has been processed to deter animals. Ultrasonic animal repelled produces different sound frequencies depending on the animal species to repel at a particular time. Hence, the high-frequency and high amount sound waves are used to drive away from the animals, which cause harm to farms. Those ultrasonic sounds can repel animals or rodents (including rats, pigs, and monkeys). For repelling different animals, separate electronic circuits will be designed to produce sound waves of different frequencies. These frequencies are time-multiplexed using Arduino UNO and radiate into the air to repel animals. These signals are to be amplified using an amplification circuit. These amplified signals are given to the speaker to produce different sounds at different time intervals. However, these frequencies do not disturb the hearing ability of persons.