Wifi underwater. Using an underwater wi-fi video camera Does Wi-Fi work underwater?

An underwater wi-fi camera is a symbiosis of regular IP photography and mobile applications. They have become widespread due to their ease of use and convenience, as they allow you to quickly find out what is happening under water or in a separate area of land with a humid climate by directing the lens.

The innovation is especially convenient because it allows you to shoot even in places where ordinary wireless devices cannot help: under water, in hard-to-reach places and screens. Since the broadband signal is reflected, underwater cameras are most used due to their simple installation.

The underwater camera includes:

wireless transmitter allows you to use 802.11 technology;
USB input for connecting external digital media;
on/off button;
video indicator of charge presence;
connector for connecting a power supply;
network connection indicator light;
lens.

The recording device is equipped with a special cable to improve the signal with coils of 10-40 meters, the length of which is enough for installation even in the most difficult places.

WiFi waterproof camera equipped with a special coating and inner film that prevents moisture from damaging the microcircuits. With this advantage, the device can be installed outdoors or in open spaces.

Important parameters of an underwater camera are:

dimensions and weight that will help hide the device from prying eyes and carry it with you when fishing or swimming;
an extension showing how high quality the image will be;
the length of the wire allows you to install the camera even at great depths;
shooting angle, indicating the latitude of the lens;
battery. How large the volume of this part is, the gadget will be able to remain in working condition for a long time without recharging;
protection class. This parameter is defined by the abbreviation IP** and indicates what pressure the device can withstand and what harmful environments it is protected from;
illumination. Thanks to this characteristic, the lens receives a signal and transmits a high-quality image even in dark conditions, which is very important when fishing;
zoom This setting determines how much the image can be enlarged;

Focus is the distance at which the device captures the image as clearly as possible. This parameter must be considered from both boundaries, since there are different situations when the object will be close to the lens.

Compact camera from Chinese manufacturer ION

Popular Chinese camera model with remote control

Connection method

To configure the device, you don’t need to be a programming genius; just turn it on and pick up the phone. On the latter you will need to download a special mobile application from the manufacturer, which detects the camera when connected to wireless network. In a matter of seconds, the device is synchronized and the application transfers the data to the cell phone.

After this, the camera dives under water and takes pictures, which are simultaneously transmitted via the Internet to the widget. The owner of the gadget can receive an image at any convenient time and, if necessary, save it to a memory card or external digital media.

As a rule, a waterproof wi-fi camera is immersed in depth when fully charged. The device uses a signal to connect to the router, then to a laptop or router. From there, the information is sent to the mobile phone through a special widget.

Application

An underwater wi-fi camera for fishing will help lovers of such recreation to see what is happening at depth. Thanks to this, you can find the most suitable place for biting and redirect your location in the right direction.

Thanks to the use of the device, you can significantly increase your catch and reduce the time it takes to catch each individual fish.

Often, a Wi-Fi waterproof camera is used on vacation by the sea, when there is an opportunity to show a child the deep beauty. In this case, cameras with a high degree of protection and a long cable are best suited to dive as deep as possible and explore all the mysteries of nature.

PENTAX waterproof camera

This also includes hand-held shooting, when the user can tie the lace up to the elbow and the device will not fall off at the right moment. Likewise, it is tied to a tree, branch or any other object.

The Wi-Fi underwater video camera is a new solution for non-standard problems, such as fishing, outdoor video surveillance and underwater filming. Despite the wired connection method in extreme conditions, it provides a constant signal and is able to quickly transmit data to the network. At making the right choice priorities and characteristics, the consumer will receive a suitable device that will perform all the tasks assigned to it.

New development of scientists from the University at Buffalo in the field of wireless network technologies in the future, it can significantly simplify the study of the ocean depths and the observation of the processes occurring in them. Researchers have proposed a new type of transmitter that can communicate from underwater with routers located on land, ships or floating platforms. The received sound waves are converted into a Wi-Fi signal.

According to Tommaso Melodia, the professor heading the project, its main goal is not to expand the coverage area social networks. First of all, the technology is being developed to modernize the system for monitoring water bodies and their inhabitants and warning about impending disasters (in particular, tsunamis). It can also be used to track the movements of submarines used by drug traffickers or smugglers to transport goods, search for polluted areas of the oceans, underwater mineral deposits, etc.

Regular Wi-Fi is a radio signal that is not suitable for transmission underwater. Because of this, the developers had to use a combined network. As mentioned above, the signal goes to the router in the form of sound waves (similar to a sonar), and it already transmits it to satellite or cellular networks, through which data is received by computers, laptops, mobile devices etc.

According to Melodia, such availability of information in real time will allow people, in particular, to respond in a timely manner to an approaching disaster, which will reduce the number of deaths.

It should be noted that sensors placed underwater to transmit information have existed for quite a long time (in particular, sonars). However, the network structure developed at the University of Buffalo makes it possible to increase the efficiency of their use. By combining existing and new devices in the proposed manner, scientists will be able to observe in real time the processes occurring under water and respond to them in a timely manner. The same applies to ordinary users.

Over time, if the proposed project is put into operation, for each type of information can be developed individual applications(both intersecting and isolated), covering a certain part of the audience. Depending on this, their closeness may change. Thus, an ordinary person living on the ocean shore needs to receive up-to-date information about disturbances and the occurrence of a tsunami. At the same time, he has absolutely no need for data on the migration routes of fish or the routes of smugglers. And if the first data can be made available for wide use, then the latter must be well protected. The same applies to the possible location of fossil fuel deposits or other objects of commercial interest - untimely disclosure of data in this case can lead to brutal proceedings for property rights.

In the section on the question Will wi-fi work under water? given by the author Entry the best answer is If the router is waterproof)
Leonid Berdnikov
(552)
then of course it will be! if the phone can function normally in water

Reply from HOT PEPPER[guru]
Depends on distance, depth, bottom topography, transmitter power.

Reply from Rational gaze[guru]
No

Reply from Vladimir Kolpakov[guru]
The Japanese company Toshiba has already demonstrated the ability of its tablet to work without interruption in water. The tablet was specially immersed in a filled aquarium. After this incident, scientists became seriously concerned about the possibility Wi-Fi work at depth.
As part of the study, many experiments were carried out. One of the studies was an immersion experiment mobile phone with a Wi-Fi receiver specifically to a depth of up to 2 meters in fresh water. As a result, the dive angle was not low enough. However, the connection disappeared at a depth of more than 30 centimeters. Water is one of the most powerful conductors electric current, which leads to attenuation of radio waves. The fading effect is noticeable during rain, as well as near waterfalls. Thus, in water and at depth you cannot count on fast Wi-Fi. The signal strength depends on the transmitter

Reply from Dmitry[guru]
No. Radio signals (except for ultra-low frequencies) are very attenuated in water. Look, even submarines are forced to surface under the periscope and raise the antenna above the water in order to communicate, but they have more important tasks than Wi-Fi.
So make an antenna for your bathyscaphe that rises above the water :)

Have you ever dreamed that you could use an action camera to monitor the life of fish underwater in real time? If you simply lower the action camera under water, the Wi-Fi signal will disappear, since it will simply be absorbed by the water and will not spread further than 10-20 centimeters. We decided to invite you to use a simple and effective method. You don't have to change anything in the aquabox of your action camera or in the receiving device (smartphone or tablet).

The idea of our proposed method is Wi-Fi transmission signal using coaxial cable, for example RG-174 (or similar). This cable is perfect for turning our idea into reality, because it is cheap, flexible and thin. To get a stable signal, we recommend taking a cable no more than 14 meters in length.

Each end of the cable should be stripped from the shielded part to the central core, which you need to leave in a plastic braid (an example is shown in view C), and the bare ends should be waterproofed (for example, with hot glue) to prevent corrosion. From both ends of the cable it is necessary to remove the shielded part up to the central core. Remember that the length of the stripped end plays a role important role! For Wi-Fi signal 2.4 GHz, which has a wavelength of 12.5 centimeters, should be removed from both ends of the braid of 6.25 centimeters (half the wavelength). Of course, you can remove the entire 12.5 centimeters at each end, but 6.25 centimeters is the most ideal length for a stable signal and for easy installation.

Secure the first end of the cable to the waterbox of your camera using glue, tape or other materials. The second end of the cable should be secured to the body of the receiving device (tablet). We recommend using a waterproof case that can protect your smartphone from damage (wetness, etc.). IN in this case You can secure the other end of the cable to the outside of the case.

That's all that needed to be done! Once you do this, you will be able to monitor the life of the inhabitants of the water in real time! It is better to immerse the action camera under water on a separate cable, attaching a small weight to it, or you can attach the camera to a telescopic tube, from which it will be even easier to select the desired angle.