RU110519U1 - RAILWAY SECURITY SYSTEM - Google Patents

Abstract

 1. Railway safety system, including a computer to which video cameras are connected, characterized in that thermal imagers located along the railway line are additionally connected to the computer, and backlight lasers are attached to the cameras. ! 2. The safety system for railway transport according to claim 1, characterized in that the thermal imagers and video cameras are installed in two rows on both sides of the railway track with an equal interval and with a shift of half the interval in the rows. ! 3. The railway safety system according to claim 1 or 2, characterized in that the cameras and thermal imagers located along the railway are installed alternately. ! 4. The railway safety system according to claim 1 or 2, characterized in that it comprises a loud-speaking notification subsystem. ! 5. The railway safety system according to claim 1 or 2, characterized in that it contains an emergency communication subsystem. ! 6. The railway safety system according to claim 1 or 2, characterized in that it comprises a perimeter alarm subsystem.

Description

The utility model relates to the field of railway transport and can be used to ensure safety on the railway.

A known method of controlling a transport system by the criterion of minimum delays in the delivery of passengers and goods to the system for its use (see US 7219067 A1, 05/15/2007). The known method; It includes collecting the real parameters of the functioning of many railway systems responsible for the delivery of passengers and goods, comparing the real parameters of the systems with acceptable boundaries and issuing recommendations to systems for carrying out work aimed at optimizing the transportation process in a complex railway system. The transport system control system used by the known method includes many railway transport systems responsible for delivering passengers and goods, each of which includes means for collecting real functioning parameters, means for setting standard functioning parameters, a unit for comparing real and standard system parameters, and means for forming an order of actions aimed at optimizing the process of transporting passengers and goods using the means available to the system. However, the known invention does not solve the problem of optimizing the management of railway safety.

The invention is known for a method of optimizing the operation of railway transport and a multi-level system for its implementation (see RU 2006125429 A, January 27, 2008, prototype). This method consists in the fact that during the operation of the system they collect the real parameters of the functioning of the systems and subsystems responsible for managing the infrastructure of the railways, compare the real parameters of the systems and subsystems with acceptable boundaries, and when the real parameters of the system and / or its subsystems exit allowable boundaries produce almost real-time restoration of the system and / or its subsystems determined by simulation, the operations are carried out in response to each case of a change in state the appearance of the system and / or its subsystems and in each assigned current time interval of their operation.

A system using this method contains systems and subsystems responsible for managing the railway infrastructure, each of which includes means for collecting and real functioning parameters, means for setting standard functioning parameters and a unit for comparing real and standard system parameters, means for restoring the system, wherein each of the blocks and means of each system and / or subsystem are interconnected by a software and hardware module configured to set and control rights operation of the corresponding system and / or subsystem.

The known method and device provide optimization of the transportation process in a complex hierarchical railway system, but do not sufficiently detail the principles of managing the security system, which limits its scope. /

The objective of the invention, which coincides with the technical result achieved when using the invention: providing effective video surveillance in the dark, in bad weather, with minimal energy costs and ensuring the detection of optical devices directed towards the guarded object (railway track).

The solution of these problems has been achieved in a railway safety system including a computer to which video cameras are connected, because according to the invention, thermal imagers located along the railway track are additionally connected to the computer, and backlight lasers are attached to the video cameras. Thermal imagers and video cameras are installed in two rows on both sides of the railway track with an equal interval and with an offset of half the interval in the rows. Video cameras and thermal imagers located along the railway track and installed alternately. The system may comprise a speaker subsystem. The system may include an emergency communications subsystem. The system may include a perimeter alarm subsystem.

A thermal imager is a device for observing the distribution of the temperature of the surface under investigation. The temperature distribution is displayed on the computer screen (or recorded in its memory on the hard disk) as a color field, where a certain color corresponds to a certain temperature. As a rule, the display shows the temperature range of the surface visible in the lens. Typical resolution of modern thermal imagers is 0.1 ° С. In the most budget models of thermal imagers, information is recorded in the device’s memory and can be read through the computer connection interface. Such thermal imagers are usually used in conjunction with a PC personal computer and with software that allows you to receive data from the thermal imager in real time.

Distinguish between observing and measuring thermal imagers. The former simply make the infrared image visible in a particular color scale; they are used in security systems. Measuring thermal imagers, in addition, assign the corresponding temperature to the value of the digital signal of each pixel, resulting in a picture of the temperature distribution. Thermal imagers are used in various fields of technology, but their use is limited by a relatively high cost. Until recently, thermal imagers could not compete with video cameras because of the high cost. But given that the cameras provided video surveillance at night only with the use of infrared illumination, which consume a lot of energy, it became possible to replace the cameras with thermal imagers.

The essence of the utility model is illustrated by drawings and photos (figure 1 ... 6), where:

figure 1 presents a diagram of a security system, figure 2 presents a diagram of thermal imaging surveillance of the railway track in a vertical plane,

figure 3 presents a diagram of the coverage of thermal imaging video surveillance of the railway track in the horizontal plane,

figure 4 shows a diagram of the implementation of the safety system of the railway track.

figure 5 shows the rationale for the installation interval of thermal imagers, figure 6 shows the appearance of the camera, interlocked with a laser backlight.

The security system for implementing the proposed method (Figs. 1 ... 6) is designed to control the railway track 1. On both sides of the railway track, posts 2 and 3 are installed, which in a particular case are used to install safety equipment, primarily cameras and thermal imagers . The system contains an information processing subsystem 4, which, in turn, contains a computer (system unit) 5, a monitor 6, a keyboard 7, a mouse type 8 connected to it, 8. Video capture cards and a multiplexer are not shown in the diagram (Fig. 1), it is assumed that they are part of the computer. 5. Software for the operation of the system is developed and submitted for registration with FIPS.

All components of the information collection and processing subsystem 4 are connected by electrical connections 9. The railway safety system also includes a video surveillance subsystem 10, which includes video cameras 11 and backlight lasers 12 connected to them, which are connected by wired communication channels 9 to computer 5. In addition, , the system contains a subsystem of thermal imaging 13, which includes thermal imagers 14, connected by electrical connections 9 to a computer 5. Another system contains a subsystem loudly th alert 15, which, in turn, contains microphones 16 and loudspeakers 17. The system includes an emergency communication subsystem 18, which contains, in turn, microphones 16, Secluded by electrical connections 7 with speakers 17. The system includes a perimeter alarm system 18, which includes a controller 19, to which electrical sensors 7 are connected safety sensors 20 .;

The main feature of the system is the use in it of video cameras 11 with backlight lasers 12 in the infrared range and thermal imagers 14 (Fig. 1). Video cameras 11 and thermal imagers 14 have certain coverage areas 24 in the vertical and horizontal planes and are rotatable in the horizontal and vertical planes. In addition, the maximum distance at which an object can be detected is limited by Amax .. To ensure complete coverage of the protected area (railway 1) it is preferable to install thermal imagers 11 on both sides of the railway 1 (Fig. 5) with an interval between thermal imagers 11 in the rows L = 300 ... 400 m. At a shorter distance, the cost of the system is significantly it will increase significantly, and with a larger one, the object (the offender) cannot be recognized.

The railway safety system works as follows.

They turn on computer 3 and supply power to all subsystems, including subsystems 8, 10, 12 15 and 18. All information from subsystems 8, 10, 12, 15 and 18 is transmitted to computer 3. Visual information from video cameras 9 and thermal imagers 11 is displayed on the monitor 4. Information from thermal imagers 11 is taken not only during the day, but also at night without backlighting.

The cost of the system design (two options) is given in Tables 1 and 2.

Table 1 Calculation of the cost of 1 km of the system for AXIS Q1910-2 thermal imagers Npp System name The cost of equipment, materials, rubles. VAT included Cost of work, rub. VAT included Total RUB with VAT Design work Construction, installation and commissioning one Linear part 4289218 60049 2144609 6493876

2 Precinct cabinet 914637 12805 457319 1384760 3 Strong point 1729395 24212 864697 2618303 four Dispatch center 259014 3626 12950 392147 Total: 7192264 100692 3596132 10889087 Without VAT 6095139 85332 3047569 9228040 Table 2 Calculation of the cost of 1 km of the system for thermal imagers IS Q 1921-E Npp System name The cost of equipment, materials, rubles. VAT included The cost of a slave from, rubles. VAT included Total RUB with VAT Design work Construction, installation and commissioning one Linear part 3309509 46333 1654755 5010597 2 Precinct cabinet 909487 12733 454744 1376963 3 Strong point 740480 10367 370240 1121087 four Dispatch center 258911 3625 129456 391992 Total: 5218388 73057 26091942 7900639 Without VAT 4422362 61913 211181 6695457

The most appropriate use of the most modern video cameras with laser illumination of the type VIS-3001P2 (Fig.6) is a 2 'megapixel IP camera on a high-speed rotary platform combined with a backlight system based on a solid-state laser, the laser illumination range is 350 meters. The spectral range of the laser is in the near infrared region. Thanks to the spectral range in the infrared region, the camera allows you to stably detect security threats in light fog, light snow, and rain. The camera has a fast lens with a variable focal length (optical zoom) from 3.4 to 122.4 mm, as well as a digital zoom of 12 times. Total zoom over 43 2x.

Illumination of the camera’s field of view by laser radiation also makes it possible to detect optical devices, sights directed towards the guarded object. Low power consumption of less than 10 watts in lighting mode is ideal for working on long objects. Turning speed more than 100 degrees per second, lowering / raising more than 60 degrees per second. 360-degree rotation, raising / lowering + 90 / -90 degrees, 128 preset points and 6 driving directions in auto-monitoring mode. The camera has settings for automatic contrast, sharpness. Laser illumination can reduce the energy costs of lighting by an order of magnitude and ensure the detection of optical devices of intruders.

The system works as follows (figure 1 ... 6)

Before starting work, I turn on computer 4 and apply voltage to all subsystems: 10, 13, 15, 18 and 21. Control programs developed by the author allow periodic rotation of video cameras 11 and thermal imagers 14 for continuous monitoring of railway track 1. Information from video cameras 11 and thermal imagers 14 is transmitted wirelessly communication channels 9 to the computer 5 and then to the monitor 6. If necessary, the speakerphone subsystem 15, the emergency communications subsystem 18 and the perimeter alarm subsystem 21 can be involved.

Application of the system allowed:

1. Ensure absolute safety in railway transport at any time of the day.

2. To reduce by an order of magnitude the cost of maintaining the system by eliminating infrared (non-laser) illumination at night.

3. To provide detection of optical devices of intruders.

Claims (6)

1. Railway safety system, including a computer to which video cameras are connected, characterized in that thermal imagers located along the railway line are additionally connected to the computer, and backlight lasers are attached to the cameras. 2. The safety system for railway transport according to claim 1, characterized in that the thermal imagers and video cameras are installed in two rows on both sides of the railway track with an equal interval and with a shift of half the interval in the rows. 3. The railway safety system according to claim 1 or 2, characterized in that the cameras and thermal imagers located along the railway are installed alternately. 4. The railway safety system according to claim 1 or 2, characterized in that it comprises a loud-speaking notification subsystem. 5. The railway safety system according to claim 1 or 2, characterized in that it contains an emergency communication subsystem. 6. The railway safety system according to claim 1 or 2, characterized in that it comprises a perimeter alarm subsystem.