RU2337508C1 - Method for water-based object protection from unauthorised penetration - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: invention concerns technical means of active non-lethal counteraction to penetration to guarded objects based in water basins. The method of water-based object protection involves effect of different electric potentials on a trespasser appearing between electric current lines of different density, created in a water space, resulting in electric flow through the body of trespasser, impeding further movement.

EFFECT: blocking of submarine trespasser in guarded water space.

2 dwg

Description

The invention relates to security systems of active influence on the intruder by electric current and is intended to protect objects located in local water volumes from the penetration of underwater intruders and saboteurs.

The impact on the intruder is carried out by electric current lines of various densities created on the water surface and inside a certain water volume. The invention can be used to equip long-term barriers and restricted areas near protected water-based facilities in order to block an underwater intruder and make it difficult to move.

Known means of blocking an intruder (enemy, attacker), the basis of which is to use the electro-hydraulic effect. Utility Model Patent No.33291. Priority June 26, 2003) [1]. The essence of this invention lies in the fact that in the water volume the intruder is subjected to hydroacoustic shocks created by high-voltage electric discharges. The disadvantages of the device are:

- the need to deliver the device in close proximity to the location of the intruder, which involves a complex set of technical means that exclude the direct contact of the device with the intruder;

- a relatively low efficiency conversion of electrical energy during high-voltage discharge in water into the mechanical energy of acoustic waves.

The technical solution used in the present invention consists in forming a zone of electric shock in a water volume.

The essence of the invention consists in a method of influencing an intruder, which consists in forming an electric shock zone acting on a detected underwater intruder in a water volume, which arises when positive and negative electrodes are located at certain distances from each other to which voltage is applied. The electrodes are connected by insulated conductors through a switching device with a voltage source. Conductor insulation reduces energy loss. Depending on the geometric dimensions of the tactical tasks to be solved, a different number of electrodes is installed in the water volume.

The invention allows to expand the arsenal of existing technical means of physical protection of objects located in water areas. The main focus of the tool is as follows:

1) the formation of relatively large insurmountable volumes for the intruder, the stopping effect in which the electric current performs;

2) repeated pain exposure within the zone, providing a high probability of damage to the intruder;

3) non-lethality of exposure, excluding the receipt of injuries and injuries;

4) defeat of both single targets and group;

5) the effect of surprise for an underwater intruder.

The implementation of the invention involves the presence of a complex of devices of figure 1. The essence of the technical approach is as follows: inside a certain water volume in front of the guarded object 1, electrodes 2 are installed at different depths, connected to insulated conductors 3, connected through a switching device 4 to a current source 5. Directly in front of the affected area are detection sensors 6 (they can work on various physical principles), reacting to the appearance of an intruder near the electrode installation sites. When a person enters the detection zone of any sensor 6, the latter, through its control device 7, transmits a command to the switching device 4, which closes the circuit by connecting the desired electrode (or group of electrodes) with an electric current source 5. After this, an area is formed between the electrodes 2 current flow. An electric charge flows through the body of the intruder, caught between the streamlines of different densities (Fig. 2), exerting pain and thereby making it difficult to move to the protected object.

The models and formulas from [2, 3, 4] that describe the flow of current from a point into a homogeneous medium with conductivity p were taken as the basis. The flow of current from the electrode into the water volume is accompanied by the appearance of potentials of a certain value at the end of the electrode in the water volume around the electrode. The field of electric current spreading in water from two opposite-pole electrodes is an ellipsoid, in which a small radius can be calculated.

, где I - сила стекающего тока, ρ - электрическая проводимость воды, U - напряжение между положительным и отрицательным электродом в каждой паре.Due to the fact that the optimal solution for blocking a certain water volume V is the option of installing N pairs of positive and negative electrodes at such a distance that the current spreading field from each pair of different-pole electrodes forms a sphere shape, the electrodes are spaced apart from each other

where I is the strength of the flowing current, ρ is the electrical conductivity of water, U is the voltage between the positive and negative electrode in each pair.

, что позволит создать в теле пловца электрический ток, вызывающий болевые ощущения.A sufficient voltage is applied to the electrodes in order to provide potentials at the current spreading field boundary

, which will create an electric current in the swimmer’s body that causes pain.

.Thus, using N pairs of electrodes, the volume can be blocked.

.

The analysis of the prior art by the applicant, including a search by patent and scientific and technical sources of information and identification of sources containing information about analogues of the claimed invention, allowed to establish that the applicant did not find a source characterized by features identical to all the essential features of the claimed invention.

To verify the compliance of the claimed invention with the condition "inventive step", the applicant conducted an additional search for known solutions to identify features that distinguish the claimed method. The search results showed that the claimed invention does not follow explicitly from the prior art for the specialist, since the influence of the transformations provided for by the essential features of the claimed invention is not revealed from the prior art determined by the applicant to achieve a technical result. In particular, the claimed invention does not provide for the following transformations:

- the addition of a known means by any known part, attached to it according to known rules, to achieve a technical result, in respect of which the effect of such an addition is established;

- replacement of any part of a known product with another known part to achieve a technical result, in respect of which the effect of such a replacement is established;

- an increase in the number of elements of the same type of action to enhance the technical result due to the presence in the tool of just such action elements;

- the implementation of a known tool or part of a known material to achieve a technical result due to the known properties of this material;

- the creation of a tool consisting of known parts, the choice of which and the relationship between them are based on known rules, recommendations, and the technical result achieved in this case is due only to the known properties of the parts of this tool and the relationships between them.

The described invention is not based on a change in a quantitative characteristic, the presentation of such signs in relationship, or a change in its appearance. Therefore, the claimed invention meets the condition of "inventive step".

Thus, the proposed method provides the ability to protect local water volumes from unauthorized penetration of an underwater intruder, which will ensure the proper level of protection of protected objects located in water volumes.

Information sources

1. Udintsev D.N. Maloguko L.A. Means of active protection of water areas using the electro-hydraulic effect. Utility Model Patent No.33291. Priority June 26, 2003

2. Manoilov V.E. The basics of electrical safety. - L .: Energoatomizdat, 1985, p. 189-229, 299-319.

3. Burgsdorf VV, Jacobs A.I. Grounding devices of electrical installations. - M .: Energoatomizdat, 1987, p. 32-35, 47-50, 62-66, 87-88.

4. Dolin P.A. Fundamentals of safety in electrical installations. - M .: Energoatomizdat, 1984, p. 75-83, 85-96.

Claims (1)

A method of protecting water-based objects from unauthorized penetration of an underwater intruder, which consists in exposing an underwater intruder to water in an intruder that is detected in an aqueous volume, characterized in that the electric current arises in the intruder’s body when it enters an aqueous volume in which N steam is installed positive and negative electrodes; electrodes are spaced apart

where I is the strength of the flowing current, ρ is the electrical conductivity of the water, U is the voltage between the positive and negative electrodes in each pair, a voltage sufficient to provide potentials φ = 0.133 · U≥10B at the boundary of the current spreading field, resulting in block volume

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