Description

Field of the invention

The technical field of this invention regarding security systems of marine vessels is aided by chemistry and computer science.

Technical problem

One of the main challenges of small submarines and the boats which change into submarines is to avoid the marine vessels from sinking in special conditions. In some cases that the submarine has few crews and it faces critical situations, protecting their life is more difficult. If the submarine gets damaged as a result of hitting a hard object and its crews are not completely conscious, the possibility of their rescue is very low. Moreover, if the submarine gets extremely damaged, then it will be impossible to survive.

Background of the invention

The available systems considering maintaining the safety of boat and submarine crews has been limited to announcing danger and the like. The main focus of these systems is on studying the body safety of the submarine. Getting use of multi-layered bodies and track and radar system is considered to be the other breakthrough in this field.

Brief description of figure: figl : a picture of submarine when the padding is in an inactive state

fig2: a picture of submarine when the padding is active

fig3: a picture of installing vibrating sensors on the submarine Detailed description of the invention:

In order to increase the security coefficient of submarine crew while facing urgent situation, two separated security systems have been utilized.

Airbag system:

Four airbags 1 are installed in four corner of submarine to avoid the vessel from sinking in urgent situations. The number and size of airbags could vary for different vessels. The airbags are connected to an intelligent activation system of which the conditions of issuing activation command will be reviewed later. First, we will consider airbag performance. This airbag is made of plastic insulation polymer because the created actions and reactions inside the container increase the temperature up to 100 degrees centigrade. Since the water around its environment is cold, in order not to affect the container, insulator is used to minimize heat transfer. Inside the airbag sodium azide or potassium nitrate together with inflator system is used which produces nitrogen gas. This system inflames the solid propellant or solid fuel and burns quickly in order to create a big volume of gas for inflating airbag. Therefore, this system produces gas in 322 kilometer per hour in an enclosed container. This process occurs only in a twenty- five second. Generally, it can be stated that azide sodium NAN3 reacts with nitrate potassium KN03 and produces nitrogen. Moreover, solid fuel system available in it also intensifies the reaction and produces greater volume of gas in time unit that in the case of issuing activation order, the gas is created inside the airbag 2.

How to activate the airbag

1. In small submarines, the health of crew is examined by measuring systems of vital symptoms and if these signs change into warning states, the system automatically activates the airbags after making three beeps, which causes the submarine come up quickly. On the condition that the crew realizes that it is not necessary for the airbag to be activated, he can stop the procedure before the third beep makes sound. If the vital signs of the crew is still on warning state, the procedure is repeated.

2. In small submarines, when the pressure and oxygen inside the cabin decreases or the water penetrates into the submarine, the system automatically activates the airbags after three beeps which causes the submarine to come up quickly. On the condition that the crew realizes that it is not necessary for the airbag to be activated, he can stop the procedure before the third beep makes sound. If the mentioned problems are not removed after some minutes, the procedure is repeated again.

3. In small submarines, when the submarine hits an obstacle and there is no possibility for it to be guided by the crew, then the procedure is repeated again.

4. In the boats, if the submarine goes extremely down the water, the airbag is activated and is stopped from being sunk completely.

It must be mentioned that if the airbags are used in bigger boats or submarines, its size and number will be different according to the submarine.

Impact sensors

The other method presented for avoiding submarine from sinking and reacting punctually by the applicant in this invention is getting use of impact sensors around the submarines. The existence of these sensors 3 make it possible for the applicant to identify the exact place of the strike while hitting a hard object. This matter makes it possible to examine and remove the problem immediately if the submarine is damaged. Even if the problem could not be solved, the applicant can save the submarine from sinking by activating the airbag system.

The explanation of implementation method of the invention

In order to apply this invention, we can connect it to the submarines in the production stage or add it to an existing submarine.