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Wireless Charging technology for Drones and the flight duration


UAV is abbreviated as Unmanned Aerial Vehicle, a flying machine with no pilot on load up. The UAV showcase will probably create incredible financial and innovative significance in the future due to the wide assortment of utilization and the additional esteem identified with these unmanned vehicles. This article discusses the wireless charging for Drones. For the last ten years, the creators of unmanned aerial vehicles have decided to think apart from the military industry and have exhibited compelling interest in powerful unmanned aerial vehicles in the common and business market. The military was the first sector to use unmanned aerial vehicles and exhibit UAV’s efficiency and productivity, motivating other businesses or common sectors to use UAV systems.

The latest technologies belong to aeronautics and other fields, which will significantly advocate UAV enhancements. This research is about the flight duration of the UAVs. The flight duration of UAVs (used for civil applications) is just 25 to 30 minutes. The flight duration is very low to carry out operations successfully. The flight duration capabilities of UAVs are linked to drone propulsion systems. The drone performance is based on the weight of the power plant and the amount of fuel the UAV consumes, as these have a very prominent effect on the flight duration and range of the Unnamed aerial vehicle.

The following research has been conducted with the goal of investigating the techniques and technologies adopted to overcome the battery charging issues in drone technology. The battery-operated drones have very low flight duration to carry out operations effectively. During UAV’s flight, batteries need to be replaced or charged. These are the obstacles in their smooth and elongated flight. The investigated technologies vary according to the different propulsion systems. This paper will also overview such propulsion systems and their impact on the UAV’s flight’s duration and effectiveness. Much of this paper consists of the wireless charging of UAV batteries to enable their smooth flight without interruption.

The research will be based on four main chapters. The first chapter demonstrates the project proposal for the wireless charging of drones, and the research questions and the study’s objectives are presented in detail. In Chapter 2, there will be an exploration study in which the drone technology and alternate solutions for battery replacement of UAVs are analyzed along with the overview of propulsion systems that play an important role in the drone flight duration and efficiency. The third chapter focuses on wireless technologies that charge drones during their flight. Future work conclusions are summarized in the fourth chapter.

Project Rationale:

UAVs speak to a quickly developing action in business flying that will have an exceptionally significant financial effect sooner rather than later. The utilization of a few UAVs in performing common and business activities, such as photography, natural life research and overview, agriculture looking over and mapping, and others, has animated the interest for UAVs in the business segment. The solid development of this market will join the expansion in functionalities, for example, higher continuance, bringing down commotion and outflows, and expanded mission extension, among others.

The automaton framework comprises a three-hub gyro sensor, a three-hub increasing speed sensor, a GPS beneficiary, and an atmospheric weight sensor that measures the condition of the automatons, keeping in mind the end goal to steadily control the automatons, and the flight controller hereinafter alluded to as “FC” the control flag is transmitted to the electronic speed controller, which is an engine transmission, by mirroring the control calculation to the got working sign. The Electronic Speed Controller (ESC) drives the engine to control the automaton’s development because of an administrator’s order. Batteries provide all power sources and the little unmanned airborne vehicles, for example, batteries mostly fuel rambles, so flight times don’t surpass 60 minutes.

In this way, after flying for a specific timeframe and coming back to the starting point of the flight, when flying after the charge, the drone comes back to the inception of the flight, the battery is devoured in time, and the battery is expended again while moving again in the wake of charging.

Because of this issue, the battery is expended amid the flight from the take-off point to the objective point as opposed to the time utilized for the drone to play out the mission. In this way, improving the charging framework to repay this is an important report for using the drone. There are numerous sorts of batteries, for example, Ni-Cd (Nickel-Cadmium), Ni-MH (Nickel-Metal Hydride), Li-Fe (Lithium-Iron) and Li-polymer. Yet, the most appropriate battery for a Drone or Multi Copter is lithium polymer (LiPo). The polymer battery is marked 1 Cell or 2S, has a 3.7V voltage for each cell, and can work in parallel, yet not in the arrangement.

The unit of the release rate of the battery is indicated by C, 1C implies that it can yield one time of attractive limit. If the battery is 15C of 3S 2200mHA, it can yield 15 times and be released up to 2200 * 15 = 33A. The charging framework is outlined as follows: though the voltage drops, the control circuit must be worked on to ensure the battery. While releasing, warmth will be produced. If released more than the execution, the battery will warm up considerably and be harmed.

Research questions, Aims, and objectives:

This project aims to investigate the wireless technologies developed for the drone to carry out extensive operations. The alternate solutions for manual battery replacement will also be investigated. The propulsion system types also determine the flight duration, operational range, and endurance. We will also study some propulsion systems affecting drone flight duration, speed, and operational range. The questions to be answered in this research paper are stated as follows:

“What apparatus autonomously can address UAV’s manual charging requirements?”

“What strategic placement of the charging apparatus can increase UAV’s productivity and operation time?”(Drone Charging Stations)

To answer the above questions, numerous other questions are answered and further investigated:

  • What is a drone?
  • Classification of different types of drones.
  • What are the issues regarding drone charging?
  • What methods are adopted for battery replacements to elongate the flight duration?
  • Which propulsion systems are used by existing drones?
  • What are the pros and cons of propulsion systems affecting the flight duration, speed, and operational range?
  • What is wireless charging methodology?
  • How can wireless charging technology be implemented for drones?
  • What kind of wireless technology will be developed and what is its ongoing work?

By answering the above questions, we determined what the drone technology is. The existing drone types and classifications will be analyzed. Through the above questions, we have determined the issues regarding the drones’ batteries. We have identified the battery types and the maximum time the drone takes to fly. We will investigate different manufacturers’ alternate methods to replace the batteries during the mission. This will further encourage investigation for more effective solutions to battery charging or replacements. The propulsion systems of UAVs also affect the flight duration, speed, and operational range. An overview of such systems will be added in this research paper. And eventually, by answering questions, we will investigate the most effective charging technology for the drone, i.e., wireless charging technology. The future and ongoing technology developments regarding wireless charging will also be discussed.


Chang-Woo Park, H. T. (2016, November). A Study on Drone Charging System Using Wireless Power Transmission. Retrieved from International Journal of Trend in Research and Development, Volume 3(6), ISSN 2394-9333:

Drone Charging Stations: What’s the Best Way to Charge Your Drone? (n.d.). Retrieved February 9, 2017, from



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