BG2105U1 - SYSTEM FOR AUTOMATIC LOCALIZATION OF FIREWORKS - Google Patents

Abstract

The automatic firearms localization system includes sound sensors connected to a control center that is connected to a computer system via communication electronics and the Internet. It includes at least three control units (2) installed in a controlled area (1) connected bi-directionally via GSM cell (3) and internet (4) to a control center (5) with GSM modem (9). The control center (5) is connected one-way with at least one GSM receiver (7), the control units (2) being stationary and / or portable devices, two-way digital connection via a standard GSM mobile communication network in GPRS mode, a geodetic gauge electronics unit and precise time from the Atomic GPS standard, a weather station and a power supply unit. The Control Center (5) is a specialized geographic information system GIS, including a personal computer - a server. 2 claims, 3 figures

Description

Field of technology

The utility model refers to a system for automatic localization of shots with firearms on the territory of forest and mountain areas and will find application in environmental protection.

BACKGROUND OF THE INVENTION

The problem of locating firearms has arisen with the creation of the weapons themselves and has evolved technologically with the weapon systems themselves.

According to the physics of the process of reproducing a shot, several methods are used for localization:

- Monitoring the light flash from the barrel when shooting (muzzle flash);

- Monitoring the sound from the sound wave of ammunition (bullet shockwave);

- Monitoring the muzzle blast emitted from the barrel of the weapon.

No less important is the problem with the classification of firearms - type, caliber, brand.

According to the application, several types of systems are known:

- Personal - as personal equipment of soldiers;

- Mobile - for armored personnel carriers, etc. vehicles;

- Stationary - for the needs of artillery systems, as well as for use in populated and uninhabited areas.

Recently, systems for locating and detecting gunshots within populated areas to combat civilian gun crimes have become widespread.

In the United States, a large number of similar systems have been installed in major cities to help law enforcement. Due to the free acquisition regime, much of the US population owns firearms and such systems are well received by city administrations.

In Europe, such systems are mainly used in areas where firearms are more likely to be used - the outskirts of settlements and large parks - to combat poachers.

In the early 19th century, such systems were 5 reinforced horn-shaped tubes connected to the two ears of an operator. With the help of calculating mechanisms, the operator was able to determine approximately the direction and distance to the sound source. This principle of stereo 10 (volume) sound reception was used in weapon systems until the mid-20th century.

With the development of electronics, computer technology and communications, as well as the theory of signal analysis, modern systems use all the achievements of the analysis of sound waves, as well as the organization of notification of the interested countermeasures services.

We will look at the most common civilian systems at the moment.

A system is known that has stationary sensors mounted on the roofs of buildings. From the sound of the shot, processed digitally and after FFT-conversion, the so-called sound imprint is extracted. With the use of neural 2 5 recognition methods, even the type of weapon used is identified with great accuracy. The collected information: direction of the shot, playback time, caliber and type of weapon, is sent via the city Internet network to the control point. At the control room, the computer system calculates the point from which the shot was fired using trianthupation methods. All parameters of the event are stored by the system and at the same time sent to the authorities 35 of the response line. The system is widespread in many American cities.

There is a system that offers a service for automatic detection of shots fired in the park. The system consists of acoustic sensors, 40 interconnected in a WiFi computer network. The network transmits information from the sensors while synchronizing their operation. The sound of the shot reaches the acoustic sensors at different times. This system provides 45 sufficient localization accuracy with good coverage and cost.

The systems described above have two characteristics that create inconvenience when covering large areas:

0 - The need for a power supply network

2105 UI conductors;

- The need for a network to transmit information and synchronize the operation of sensors.

Technical essence of the utility model

The task of the utility model is to create a system for automatic localization of firearms, which is independent of the power supply and information network applicable] θ in remote forest and mountain areas.

The problem is solved by a system for automatic localization of shots with firearms, object of the present utility model, which j 5 includes at least three control units installed in a controlled area, which control units are connected in both directions via GSM cells and Internet to control center. The control center is connected in one direction to at least one GSM receiver, 20 positioned in a security guard. According to the utility model, kzngrolnigebiokzve represent stationary and / or portable equipment, with built-in, interconnected sound sensor, selecting electronic node, communication electronic node for 25 two-way digital connection via standard communication network for GSM mobile applications in GPRS mode, electronic measurement of geographical coordinates and exact time by atomic standard GPS, weather station and power supply, βθ According to the same decision, the control center is a specialized geographic information system, including a personal computer - server.

According to a variant of the proposed useful 35 model, the sound sensor is a windproof microphone.

The advantages of the proposed system are its compactness, mobility and independence from local power and information networks. Since the main processing 4θ for the recognition of the acoustic signal is performed on site - in the control units, the information traffic and the requirements for the communication channel are significantly reduced. This is a major advantage for building such systems outside settlements, 45 suitable for remote mountainous and forested areas.

Explanation of the attached figures

The proposed utility model is illustrated by the attached figures, where _{:, n} figure 1 represents a schematic diagram of the system;

figure 2 - control unit of the system; Figure 3 - control center of the system.

Examples of implementation of the utility model

According to the utility model, the proposed system is built of modern electronic and communication facilities that detect and localize noise from poaching in the mountainous and mountainous areas. The system is based on the principle of amplitude-frequency analysis of the sounds and their delay in their propagation, which accompany each shot. According to the attached fig. 1, installed in the controlled section 1, the control units 2 receive, select and analyze the ambient sounds. In the presence of sound from a shot, the control units 2 transmit the information via GSM cell 3 and internet 4 to control center 5, where the data are analyzed, compared with data from other control points, the coordinates of the poacher 6 are calculated and information is sent via SMS. via GSM 7 to the persons 8 guarding the controlled area.

Each control unit 2 (Fig. 2) is a stationary and / or portable device, with built-in, interconnected sound sensor, selecting electronic node, communication electronic node, making a two-way digital connection using a standard communication network for mobile applications GSM, working in GPRS mode, an electronic unit for measuring geographical coordinates and maintaining accurate time from the atomic GPS standard, a meteorological station for reading the parameters wind direction and speed, temperature, humidity and air pressure, and a power supply.

According to a solution of the proposed utility model, the sound sensor is a windproof microphone.

Depending on the conditions and requirements for localization accuracy, one to three control blocks per sq. Km can be used. The selection of sounds is performed by digital analytics electronics: primary analysis - amplitude time; secondary analysis - spectral (Fourier analysis).

The control center 5 (Fig. 3) is a specialized geographic information system GIS, including a personal computer - a server for

A

2105 Input data processing UI calculating the coordinates of the shooter and generating an alarm message connected to the Internet 4 and GSM modem 9 to a GSM network, under the control of specialized software.

According to the presented system, the following has been implemented:

- two-way connection between the control center 5 and the control units 2: computer-server internet - GSM cell in GPRS mode 3 - GPS transceiver located in the control unit, and vice versa;

- one-way connection from the control center 5 to the control units 2: computer-server - GSM modem in SMS mode 9 - GSM transceiver set up to receive SMS messages located in the control unit;

and

- one-way connection from the control center 5 to GSM transceivers 7: computer server GSM modem in SMS mode 9 - GSM transceiver.

The system has the ability to work with movable control units, as well as to miniaturize the control units.

The main functions of the system are:

- Collection of data for events registered by the control blocks and their visualization on a map or photo of the area;

- Processing of the collected data and calculation of the location of reproduction of the shot;

- Calculation of the coordinates of the shot using the principle of multiple hyperbolic estimation, the delay of the signal to the various control points;

- Taking into account in the calculations of the parameters: wind direction and speed, temperature, humidity and air pressure, supplied by a meteorological station established in at least one of the control points;

- Elaboration of a message for a shot from the received information, as a result of comparison with pre-set criteria;

- Sending a message about a shot fired as an SMS to a pre-entered list of security officers. The message contains the time of the shot, the coordinates of the shooter, and the probability of the assessment is from 60% to 100%;

- Recording of all events and official messages in a database for control and analysis of events;

- Remote submission of all modes, parameters and software to the control points, without having to walk on the spot;

- In order to save energy, the control units can be set working hours, for example, switching off during the dark part of the day, switching off during a storm, etc .;

- Broadcasting an alarm message in case of hacking attempt;

- Ensuring continuous operation by powering the control units from solar panels or for more than 3 months when powered by high-capacity LiFePo batteries;

- Possibility to be reprogrammed for activation by other similar sounds, e.g. sound of a petrol cutter or an ax cut.

Operating principle

A network of control units is located in the controlled area 1. When reproducing a shot, the control units 2 detect it and send to the control center 5 information about the time in which the sound wave from the shot has reached each of them.

A server located in a control center collects and processes the received data. Using a specialized mathematical apparatus on the principle of hyperbolic multilateral evaluation, the coordinates of the point from which the shot is reproduced are calculated according to the different delay of the sound waves to the different control points.

After detecting a shot, the server sends to the guards guarding the coordinates of the location of the shooter. The information is also stored in a database.

Claims (2)

Claims A system for automatically locating firearms, comprising sound sensors connected to a control center which is connected via communication electronics and the Internet to a computer system, characterized in that it further comprises at least three control units (2), installed in the controlled area (1), connected bidirectionally via GSM cell (3) and Internet space (4) to the control center (5) with a GSM modem (9), which control center (5) is connected unidirectionally with at least 2105 UI a GSM receiver (7), wherein the control units (2) are stationary and / or portable devices, with built-in, interconnected sound sensor, selecting electronic node, communication electronic node for 5 two-way digital connection via standard communication network for GSM mobile applications in GPRS mode, electronic node for measuring geographical coordinates and exact time from atomic standard GPS, weather station and power supply unit, and the control center (5) is a specialized geographic information system (GIS), including personal computer - server. System according to claim 1, characterized in that the sound sensor is a windproof microphone.