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  • Category: Technology

    What is a UAV (Unmanned Aerial Vehicle) and how does it work?

    Interested to know about UAV and how it works? Go though this ISC page to learn from our experts.

    I was reading about UAV (Unmanned Aerial Vehicle) developed by Indian Institute of Science, Bangalore.

    It has recently been used as a trial run for dispersing seeds in barren hilly area at Kalinayakanahalli forest in Gauribidanur taluk in Karnataka.

    I want to know how this UAV works and controlled from the base? How much load of seeds it can take with it for dispersing?
  • Answers

    6 Answers found.
  • UAV is almost like a small aeroplane which can be remotely guided to fly over the difficult terrains and do miscellaneous jobs like dispersal of seeds in difficult accessibility areas.

    Recently IIS, Bangalore has taken up a pilot project for dispersing seeds by using UAV in some barren hilly area in Karnataka.

    Generally, these are short range planes which fly very near to ground level that is about a height of 100 - 150 m only.

    These planes are remotely controlled and are maneuvered back after completion of the job.

    The load capacity of these planes is about 150 kg. Once the experimental run of this UAV is over then it can be given for commercialization to the interested parties.

    Thoughts exchanged is knowledge gained.

  • An unmanned aerial vehicle (UAV) is a type of aircraft that operates without a human pilot onboard. Recently various technologies used and developed many different unmanned aerial vehicles used for various purposes. An unmanned aerial vehicle is also known as a drone.
    With the help of GPS coordinates, it goes to the spots. It can go up to 100-150 metre high. Only 10 kg of seeds can be stored, so the aircraft had to come back to collect the seeds and fly again. This is a unique invention and it is working well. Every three months, seeds will be monitored. The UAV can also capture videos. It took eight months to develop the aircraft. As it is a development programme it has taken more time. But if this is made in factories, it can easily be made very fast The cost of each aircraft is between Rs 3-4 lakh.

    always confident

  • UAV (Unnamed Aerial Vehicle) is an aircraft without a human pilot onboard. UAV is used for special operation application and military, but also used in small but growing number of civil application such as firefighting and policing. Its flight is guarded either individually by onboard computer and remote control. UAV's are frequently choosen for mission that are too dangerous for manned aircraft.

  • UAV is like a Drone and is controlled from the ground, there is no human pilot inside the UAV. It is used for different purposes and is classified accordingly.

    It may be used for 1) Recreation, 2) Business or 3) Public entities.

    1) When the UAV is used for fun, i.e; flying in an open space as a pastime it is for recreational use.

    2) When it is used for business purpose like photography, survey, inspection or for agricultural purpose, it is for business use.

    3) When it is used for any government agencies or law enforcing agencies it is used as public entities.

    It can carry upto 150 Kg of load and the flying height is restricted according to the area of operation. Generally for flying it upto 200 feet there is no special permission required, but if someone needs to fly it above 200 feet then necessary permission from local authorities and ATC is required.

    Two things are required for the operation of UAV. One is Unique Identification Number (UIN) and the other is Unmanned Aircraft Operator Permit (UAOP). Both these are obtained from DGCA after submitting necessary documents.


    "Life is easier when you enjoy what you do"

  • A UAV is like the drones which children and teenagers fly using a remote control box.
    The Unmanned Aerial vehicle in the simplest form is the drones which children and teenagers fly using a remote control box; the complex end being the Predator MQ drones used by the US military forces for aerial reconissance missions. There are many types of this depending on the sector of use, range and budget.

    How this UAV works and controlled from the base?

    The UAV is shaped like a mini aeroplane,helicopter or a rectangular platform with area for payload(carrying objects- seeds in this case),
    2.power source (lithium-polymer batteries, and video link
    4.components for reception of radio-transmitted signals
    5.Sensors- these are basically position and movement sensors
    6.Hardware and software - the UAV has a microcontroller, system on a chip or a single board computer and then. auto-pilot software.

    For seed dispersal drones or UAVs, a pre-programmed flight path or fly on the wire like program signals are sent by a radio transmitter or by a radio telemetry device. These signals are then received by the receiver(built into the UAV). These signals coupled with inputs from the GPS are then transformed by the onboard flight controller board that actually decides how far up, forward, backward or sideward the UAV flies by driving the motors. At determined places, the seed release unit is activated, on which the seeds can be released to fall by gravity or with a propelled force that it can actually go a few centimeters below the soil.

    Further details on seed drones used for Forestation programs can be found in this in-depth article (

    How much load of seeds can it take with it for dispersing?
    This depends on the vehicle design and capabilities for the actual payload. There are commercial drones that can plant 36,000 to 1,00,000 seeds a day. The average agriculture drones carry around 20 Kg payload.

    Last year, an IISc team of experts, used drones that carried 5Kg seed balls in each unit and used on the Pinakini riverbank on the World Environment Day. Based on the quality of the seed and the seed survival pods, the success rates are variable, it was around 25% (IISC).

    The most attractive part of this UAV seed dispersal or planting is that it costs just 15% of the human traditional method and is at least 10 times faster.

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