SCIENCE — The long-tailed monkey pest attack experienced by residents of Gunung Kidul Regency inspired UNY students to create a tool in the form of a monkey trap and solar-powered electric fence.
This innovation is considered very helpful for farmers to save their crops that have been disturbed by long-tailed monkey pests
Adriyan Ramdhany said that the long-tailed monkey pest repellent system that was created has double prevention consisting of traps and smart electric fences based on the Internet of Things (IoT) which are effective by utilizing solar panels as chargers.
The design of the smart trap subsystem has dimensions of 85 cm in length, 55 cm in width, and 55 cm in height. The total weight of the smart trap tool along with the electronic circuit is no more than 15 kg so it is very portable.
“The operational power of this tool is also considered small, around 5 watts with a voltage of 5-12 Volt DC,” he explained. Meanwhile, the dimensions of the solar panel pole are 1.5 m high and 1 m wide with a wire span of 1 m in height with a diameter of 4 cm. This smart fence is integrated with IoT so that farmers can monitor the voltage, current, and safety of the equipment.
How the smart trap and electric fence system works was explained by Maulana Idris Kamal, the smart trap is baited and installed at several points that are prone to monkey attacks. When the monkey is successfully caught, the PIR sensor will detect it and give a signal to activate the servo motor.
“The servo motor will pull the lever so that the spray paint will spray the dye onto the monkey’s body,” explained Maulana.
After that, the siren will sound signaling the farmer to release the monkey that has been given the dye. The monkey will return to its colony, but the monkey colony will be afraid and scatter because they think a predator is coming.
Meanwhile, the smart electric fence is powered by solar panels that produce renewable electrical energy with storage media using batteries.
This smart electric fence is configured using Direct Current voltage that is distributed on the wire stretch around the farmer’s field.
The choice of Direct Current voltage is because it is relatively safe and the monkey does not die, but is shocked enough so that the monkey stays away from the field or can be said to have a deterrent effect.
Smart electric fences are also equipped with a security system in the form of a sensor and its output is a high decible siren sound as a warning of theft. (*)
