How New App Locate People in without Phone Signal Areas?

Do you feel safe and secure in your life? or Do you think you are in the safest hand of Advanced Technology?

We are utilizing the advanced technology of Science which aids us to save our time and energy in our busy lifestyle. For instance recently the WhatsApp new features like “Delete for everyone and Share Live location”, solve those issues which happened due to our faults or unawareness.

However, post the invention of the new advanced technologies how much safe and secured you feel at the end of the day when the question arises about your life and death?


Can any of these highest inventions in our daily life makes us protect from Disaster? My questions may sound bit unusual but let me define you for your clarity that you are not at all in the safe hand of the Internet.

For instance if your life get stuck in any Disaster or Peril which is completely an uncertainty, and you are craving for rescue and your costly Smartphone is not at all helping you out from that worst situation because of the inconvenience of Internet (Data or Wifi) then exactly at that crucial phase how could you Save your precious life?

Because Smartphone without internet connection is of no use for running its vital Apps, so your Data or Wifi connection plays a vital key role in running your all Apps fastly.

The recent invention by Scientists

Researchers have recently originated a Smartphone app that can be used in the emergency situation arising due to any peril or disaster like during earthquakes, floods or forest fires, where mobile phone infrastructure is often performed useless.

This new technology has made it easy and possible to rescue those victims by locating them who have suffered an accident in remote locations without a phone signal and where a speedy rescue is essential to save lives.

How it will work without a signal?

The inventor of the technology and professor at UA, Jose Angel Berna, narrated that they have designed an application (app) that can be incorporated to any smartphone and that, without a signal, emits a Wifi signal which in turn acts as a distress beacon over a distance of several kilometers.

This signal contains the location (coordinates) of the person who has suffered the accident or disappeared and is using the smartphone emitter, along with a short message that can be altered depending on the situation, with examples such as “I am injured,” “I am disorientated”, “I need help”, “I’m dying” or “Save me”.

In order to detect the distress signal, the researchers have also created a light, portable receptor device that rescue teams or mountain shelters could use.
This device has a small antenna and connects to the smartphone of the search party.
When an accident occurs, the victim only has to activate the mobile phone app, which will, in turn, emit the distress signal periodically, for hours or even days, even if he or she is unconscious, indicating the coordinates of its location.

How does it confirm?

According to Berná, “there have already been tests done on the ground with this innovative system, an operative prototype was developed in early 2016, with the Special Mountain Intervention Rescue Groups (GREIM) of the Guardia Civil and then with the Maritime Service of the Armed Forces and Maritime Rescue, the results of which were interesting.”

 So, while the tests performed both on ground and sea it was confirmed finally that the device can pick up the distress signal of the emitting smartphone up to a distance of two or three kilometers, respectively, although it may be possible to increase its reach.

The present status of the World

At present, there is no system in the world that uses Wi-fi signals to geo-locate a smartphone. There are devices that allow you to detect mobile phone signals from a smartphone and pinpoint its location through triangulation, but it costs around €80,000 and requires the use of a helicopter,

However, the new system is more economical, ‘as its receptor has a cost that would allow its commercialization for approximately €600 if used by a large number of rescue teams’.


  • This new invention will definitely save the time of the rescue operation team for locating the injured person at the particular point of the accident or disaster happens and where the person will seeking for his rescue means it ‘optimise the search and decrease tracking time’

Studies found that in the case of many deceased people autopsies have revealed that the person didn’t die instantly, as they survived for several hours but it’s really unfortunate that it had been impossible to locate them on time.

  • It does not require visual contact with the victim because as soon as they can detect a single signal, it will tell them its exact location, even if it lies several kilometers away or it is trapped among the rubble of a collapsed building.


Berná explains, “We have sent information to the Ministry of Internal Affairs so they take this new feature that we have developed into account and they study its possible addition to AlertCops, the citizen safety warning service of the State Security Forces”.

According to the researcher, the rescue services believe that the features of this technology should already be integrated within an emergency system and should have institutional backing.

So we can now expect the best helping app, for our life safety very soon.







  1. kalaa shree says:

    very useful post

    1. Anindita Ghosh says:


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