Underwater Robots
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One-third part of our earth is already covered with water. If we need to analyze that water-covered part of earth then we need to dive into that or we have much water floating vehicle available. In this advanced era of science, our engineers have developed an underwater robot to provide a solution for underwater research or other stuff like people who are interested in aquatic animals’ lifestyles. An underwater robot has so many advantages that we can take while our research. In this article, we will see a detailed analysis of this.
What is Underwater Robots?
Underwater Robots are a mobile robot designed for aquatic work surroundings. The remote control is usually taken out through copper or fiber optic cables. A human operator who is available shore-based station, boat, or submarine bubble while observing a display that shows what the robot “sees.” The operator can also manage the robot. Sophisticated Underwater Robots include telepresence to give the operator a sense of being in the place of the machine. A simple Underwater Robots called the flying eyeball has been in military and scientific use for decades. The spherical vehicle lacks robot arms or end effector’s but is highly maneuverable. It is equipped with onboard cameras, lamps, and thrusters.
A launcher containing the robot and its communications cable is dropped from a boat. When the launcher gets to the desired depth, it releases the robot, which is connected to the launcher by a tether. The tether and the drop cable transmit commands to the robot and convey data back to the operator.
How Does It Work?
- An underwater robot is a waterproof robot that can move in the water on the basis of a user command. This robot has a transmitting part and a receiving part. In the transmitting part, the android phone is used instead of a joystick.
- We can also use other operating modules. The android phone is connected with a Bluetooth module BC-05. The Bluetooth module is connected with a microcontroller (Arduino) and Arduino holds an RF Transmitter (RF433Tx).
- In the receiving part, we used an RF receiver (RF433Rx). The receiver is connected with a microcontroller (Arduino mega). Arduino mega hold motor driver IC. When the user sends a command through an android phone, the transmitter transmits the command to the receiver by the preset program.
- The receiver receives the command and gives it to Arduino. Arduino process the command by the preset program. Then Arduino command to motor driver and the robot starts to move. To move forward, horizontally installed motor of both side have to rotate in a clockwise direction. To move backward these motors have to rotate in anti-clockwise.
- The vertically installed motors will remain stopped. To move left, one motor rotates in clockwise and another in anti-clockwise. To move right, one motor rotates in anti-clockwise and another in clockwise. The upper motors will remain stopped.
- To move upward, all upper motor has to rotate in anti-clockwise. To move downward, all upper motors have to rotate clockwise. Both side motors will remain stopped. In this, we can operate underwater robots.
What Are The Benefits Of Underwater Robots?
A New Mining Technique
The bottom of the ocean is the birthplace of naturally occurring metallic protuberances that can yield cobalt, manganese, nickel, and rare earth minerals. Due to an increase in demand for electric vehicles and wind turbines, the use of metals is high. We can use robots to target prime mining operations. If we research department has any clue that minerals are there then we can drop underwater bots equipped with coring devices into the ocean. The robots have a dual purpose. As they collect nodules, they also bring up sediment and mud from the seafloor. Researchers use this data to ensure their mining operations aren’t harming the habitat.
A Deep-Sea Dive
Underwater robots are there which can dive deep approx. 600 meters down the water. We have featured a transducer to detect marine life. We can find whale food sources. Because the mammals dive to such great depths more than half a mile. They are hard for humans to observe. Robots can withstand the environment at these depths. For the first time, scientists can discover what foods whales are eating when deep below the surface.
Using the transducer, the bot picks up unique frequencies from each organism. Researchers use these frequencies to recognize what’s near, whether it’s a dolphin, fish, or zooplankton. Underwater robotics is making exploration cheaper and more accessible. Scientists can reach spots of the ocean that were earlier untouchable. With their ability to withstand harsh environments, these bots can collect samples, observe marine life, and test water temperatures. There’s no doubt the future of ocean exploration starts with underwater robotics.
A New Way to Research
Underwater robots playing a vital role in research. They are the new and very much convenient way to deep dive into the sea or ocean and see the new creature and things in the deep down of the surface of the water. Previously, Diver uses to go there with the help of an oxygen cylinder and risking their life. Nowadays it’s very much easy with the help of underwater robots. There are many parts that are attached to it to perform a different kind of task. So many cameras are installed at different angles to provide a view of the bottom of the sea. We can observe remotely.
A Look at Marine Life
Many research university has dropped underwater robots into the ocean, hoping to collect microbial life. They can bring deep sediment and nutrients up to the surface. Some bots gather samples of this sediment. Others swim around testing water salinity and temperatures. The goal is to learn more about life within these vertical layers of water and how they impact the ocean. Microbes control elemental cycles and form the basis of the food chain. They can absorb carbon dioxide and draw it deep into the sea. They also produce other greenhouse gases.
Microbial life is challenging to study and, because of this, it’s not well understood. Underwater robots can make the process easier and more affordable. Experts say these bots have exciting potential because they can withstand harsh environments, including high pressure.
What Are The Pros And Cons Of Underwater Robots?
If you are eager to know more about the underwater world, you should consider the following advantages and disadvantages and decide for yourself whether the pros clearly outweigh the cons.
The Pros of Underwater Robots are:
- With the underwater Robots, you can dive into larger bottoms than would be possible with a regular dive. Here simple limits are often already at 18 meters and only with special courses and a lot of experience you can dive deeper.
- The 4K camera produces very nice images and because the Underwater Robots is very relaxed in the water you get more well-built and higher quality photographs than you could ever produce by hand.
- App control is very spontaneous and needs no expert knowledge. The operation with the smartphone also reduces the extra costs for an extra operating device.
The Cons of Underwater Robots are:
- Underwater Robots move very slowly. If you are used to flying robots in the air, you have to get used to a much slower speed. Only a very gentle ride will guarantee safety.
- Depending on the state of the water, visibility can only be a short distance. Particularly at greater depths, the visibility decreases more and more, so that you can hardly see anything of the surroundings and are dependent on the lights. So you have to consider it with limited visibility.
Buyers Guideline for Underwater Robots
Battery life
How long would you like to operate the Underwater Robots at a time? Is one hour enough to explore the underwater world or do you prefer longer dives? There are big differences here and you have to consider that with a battery life of one hour, you cannot use exactly this time underwater. After all, you should have a safety buffer and surface earlier.
Diving depth
Despite the type of activity that you expect to use the Underwater Robots for, the device that you get should be tailored to your requirements. An important metric that you should pay attention to is maximum diving depth. This means the device’s ability to handle pressure underwater. Drones with great diving depth are capable of facing a significant amount of pressure and can remain functional at amazing depths.
Speed
Do you value high speed or is it sufficient for you if the Underwater Robots move slowly and quietly? Modern fast drones can go up to 4 knots. This corresponds to 7.5 kilometers per hour or 4.6 miles per hour. With these Underwater Robots, however, you must have some experience, since these speeds in the water are to be evaluated differently than on land.
With cable connection or without
Most Underwater Robots need a permanent cable connection to transmit the signals. Here you have the disadvantage that these Underwater Robots could get stuck on barriers. They are therefore somewhat limited in their freedom of movement. On the other hand, there are Underwater Robots that establish a WLAN connection to a floating buoy and can be controlled via an app. However, here you may have the risk that the connection will be discontinued. The “Return to Base” function does not cause the Underwater Robots to be lost, but it cancels the current dive process.
Where to buy Underwater Robots?
Most of the Underwater Robots are still in the experimental phase and are under development. They are not available in regular shops, but you can buy Underwater Robots online from the manufacturer on their website. Sometimes you can also support the development via crowdfunding and secure the right to a finished product when it is ready for the market.
Conclusion
Underwater Robots are an important invention for mankind. This is useful in many ways. On one side, it can help you to find the location of minerals under the sea bed, and on another side, it can help you to observe aquatic life and their lifestyle. Many research organization nowadays using Underwater Robots in their research project. This product is eco-friendly and also use to reduce the cost of research. Underwater Robots is easy to operate as we can operate it with the help of android mobile also.
