Diagnostic device of control elements of rolling stock derailing control device (rsdcd)

FIELD: transport.

SUBSTANCE: diagnostic device of control elements of a rolling stock derailing control device (RSDCD) includes an electronic unit for the detection and research of defects based on a magnetic metal memory method (MMM) with a ferroprobe converter (FPC) and an electronic unit for the detection and research of defects by means of an eddy current method with an eddy current converter (ECC). The device also has an electronic recording and processing unit connected to the electronic unit for the detection and research of defects based on MMM method and the electronic unit for the detection and research of defects by means of the eddy current method.

EFFECT: increasing safety of railroad movement.

16 cl, 5 dwg

 

The invention relates to methods of nondestructive testing and can be used for diagnostics of the control elements of the control device of the derailment of rolling stock (OXPS).

The prior art of the claimed device is known from complex diagnostic magnetic control (DQMC) that are listed on the website http.//scbist.com/scb/uploaded/21_1333478377.rar. Cm SCBIT.

Known to complex diagnostic magnetic control (DQMC) consists of two electronic devices: the control unit eddy current CARD with 1M sensor eddy current control (DCC) and the control block according to the method of metal magnetic memory ICNM-FP with sensor magnetic memory-metal (MPM), power supplies, test flat specimen.

Known DCMC is designed to control flat control elements installed in the latest models of AXPS, and allows control of cylindrical control elements of UXES. The second drawback is the lack of sensitivity of the sensors. This is due to large losses "work signal" taken from the sensor, when it is transferred to the electronic control unit. Significant the time of diagnosis of one element.

The objective of the claimed technical solution is to increase the safety of rail traffic.

In the process of solving the task is achieved technical�ical result lowering the number of false positives UXES, in the extension of the scope of the device, consisting in the detection of the control elements of UXES having different geometric shape, improving accuracy, reducing noise and interference in the measurement due to the shielding and placement of the measuring circuit near the sensor element.

The technical result is achieved by a diagnostic device of the control elements of the control device of the derailment of rolling stock (OXPS), including electronic unit to detect and locate defects on the basis of the method of metal magnetic memory (MPM) with a flux-gate transducer (FTP), electronic control unit and the search and detection of defects using eddy current method with the eddy current transducer (ect), wherein the device further has an electronic unit for recording and processing, comprising a housing, a power source, keyboard, display, non-volatile flash memory, real time clock, microcontroller, communication interface with blocks detect and locate defects and transmit data to the PC and the tongs, made of a nonmagnetic material, and an electronic controller detect and locate defects MPM method posted in General metal shielding housing with PSP and fixed on one of the jaws of forceps, as the source of Pete�Oia uses the power source unit recording and processing, contains a generator of sinusoidal signals for the excitation coil PSP, a filter for selection of the second harmonic signal from the coil FSP, the unit of sampling and storage, the input of which is connected to the output of the filter, the pulse shaper, which synchronizes with the generator of sinusoidal signals, the unit of sampling and storage, the output of which is connected to the input of analog-to-digital Converter, microcontroller, the input of which is connected to the output of the analog-to-digital Converter and optocoupler the odometer, and to the exit - entrance communication interface for data transmission in the unit of recording and processing, and an electronic controller detect and locate defects using eddy current method posted in General metal shielding housing with the probe and is mounted on one of the jaws of forceps, as the power supply uses a power supply unit for recording and processing, contains a generator of sinusoidal signals, a signal which excites the secondary winding of the three-winding transformer VTP, which in turn excites the measuring and the reference winding of the transformer, the phase detector that determines the phase difference, the input of which is connected to the amplifiers of signals from the measuring and reference windings of the transformer, and the output - to the input of analog-to-digital Converter, microcontroller, to the entrance which �otklyuchen the output of the analog-to-digital Converter, and to the exit - entrance communication interface for data transmission in the unit of recording and processing. In addition, time of continuous work of the device without recharging the power supply unit is not less than 8 hours, the keyboard has at least keys of digits 0-9 and a decimal point, 4 arrow keys, enter, cancel, on/off, the display has a resolution of 64×32 pixels, and can display 4 lines, 10 characters and pictograms, non-volatile flash memory unit for recording and processing of at least 4 Mbytes data transfer between blocks detect and locate defects and unit registration and processing occurs via RS-485 with two independent channels, data transfer to PC by USB2.0, tongs provide a contact force on the control element of OXPS not less than 10 N, tongs allow you to move them on to the intended fracture zone, while maintaining constant contact between the blocks of the search and detection of defects and the control element of UXES, electronic control unit and the search and detection of defects by the method of MPM, in a single chassis with PSP, and the electronic unit of the search and detection of defects using eddy current method, in a single chassis with ECP mounted on the same sponge forceps, electronic control unit and the search and detection of defects by the method of MPM, in a single chassis with PSP, and e block discovery of poiska defects by eddy current method in a single chassis with VTP, attached to the forceps, the electronic control unit detect and locate defects MPM method, in a single chassis with PSP, and the electronic unit of the search and detection of defects using eddy current method, in a single chassis with ECP, have led indication of exceeding a threshold value, the microcontroller unit detect and locate defects MPM method stores the calibration data in the non-volatile memory, the microcontroller unit detect and locate defects using eddy current method stores the calibration data in the non-volatile memory, when the diagnosis control unit search and detection of defects by the method of MPM fixed magnetic field strength on elements of cylindrical shape at least (4*104-5*104)/M2and on the flat elements form at least (12*104-13*104)/M2when the diagnosis control unit detect and locate defects using eddy current method fix the cracks with opening not less than 0.05 mm.

In the operation of OXPS control elements are subjected to various forms of mechanical impact, vibration from passing trains, the punches of varying strength from hanging items outside the lower limit of the envelope, bending from the action of the air�wow thread created by a passing car, as well as the influence of the external environment, moisture, temperature, which are transmitted to every detail that is included in the design. The amount of transmitted energy determines the level and nature of changes of the control elements of UXES. The reaction control elements on mechanical effects are mechanical stress, deformation and destruction of elements.

The efforts leading to destruction of the control element, can be significantly smaller than those calculated on the reference element in the initial state, defined by the technical requirements. Destruction of a control element in less effort than those for which they are designed, lead to false triggering of the locking system, as a result, significant material losses as a result of downtime of moving trains. Conducted by the authors of the study destroyed the control probes allowed us to identify the main mechanism of destruction of sensors. The control elements are subject to constant exposure to several types of variables mechanical collapse due to fatigue of the material of the control element. Practice found in the area of the intended destruction of the control element, after some time, when exposed to variable forces and vibration on the surface of the control�about the sample in the area of the intended destruction of the cracks will appear. Upon further mechanical effect on UXES defects continue to grow (increase the width of the mouth of the microcracks and the depth of its penetration into the body of the element), causing the control element to destruction. But before you occur the phenomenon of nucleation of microcracks and output it to the surface, in the material undergoing structural changes, which lead to significant mechanical stresses in the local volume. These phenomena do not occur instantly, but spaced out in time, so the time control element of UXES before its destruction can be divided into several periods. In the first period is the accumulation of internal mechanical stresses in the material of the control element with the formation of local volumes with high mechanical stresses. In the second period, there are internal cracks and output them to the surface in a controlled area of a control sample. In the third period continues the emergence of new and previously appeared cracks to a critical size and destruction of the control element. Each stage is characterized by the appearance of defects of a certain type, which can be diagnosed using a variety of methods.

The change of internal stresses in the local volumes of the material was assessed by changes in the stress�t magnetic field, using the method of metal magnetic memory (MPM) (patent RU 2173838 from 26.07.2000 Author G. Dubov A. A.). This method consists in registration of the tension intrinsic magnetic stray fields (tmms) Npoccurring in the material in the local areas of stress concentration under the action of cyclic loads. Thus tmms in the testing object reflects the actual distribution of deformations and stresses. The relationship between the magnitude of the magnetic field Hpand the value of stress concentration in local areas have established empirically. It was established experimentally that in the control element there are no defects in the form of local areas of high stress concentration, if the intensity of the magnetic stray fields of the Npdoes not exceed the destructible elements of cylindrical shape values (4*104-5*104) A/m2and on the flat form elements values (12*104-13*104)/M2these values are proposed to use as a limit.

The output of microcracks on the surface, the speed of growth, the increase in the number of microcracks, perhaps, was estimated by the electromagnetic field induced eddy currents (non-Destructive testing and diagnostics:

Guide / V. Kluev and others - M.: Mashinostroenie, 1995 - 488 p., p. 269). Method of eddy current testing concludes�I in the analysis of changes of parameters of interaction of external electromagnetic field with the electromagnetic field of eddy currents, we direct the exciting coil in an electrically conductive test object in this field. As the source of the electromagnetic field is used inductive coil, which is integrated into the eddy current transducer. The current in the coil of the eddy probe creates an electromagnetic field that causes eddy currents studied in a controlled facility. In the presence of microcracks in the controlled element more than 0.05 mm, the electromagnetic field of the eddy currents varies and accordingly changes and the impact on the spool Converter and induced in it an electromotive force. The signal from the eddy current sensor (Converter) is analyzed and the data obtained the conclusion about the presence or absence of cracks in the test object. The relationship between the magnitude of electromagnetic field strength and size of defects (microcracks) was established empirically. Control control destructible element carried on the surface of specialized eddy current Converter that allows you to define a microcrack in the destructible element with the disclosure of more than 0.05 mm.

Reducing the number of false positives UXES is achieved by improving the reliability of determination of the residual at the time of diagnosis, the resource efficiency of the control item UXES. The remaining life was estimated by p�parameters, obtained from around the perimeter of the intended fracture zone of the control element. The fixing unit detect and locate defects on the basis of the MPM posted in General metal shielding housing with FTP, and block of the search and detection of defects using eddy current method posted in General metal shielding housing with ECP forceps, allows when navigating in the area of the intended destruction of the same contact force on all control elements, this helps to minimize the range of variation of the obtained values of the magnetic field. And as the sensor and the electronic unit are made on the same Board and are directly in the zone of contact with the control element, remove the "working" signal is not lost during transmission from PSP and ECP to the electronic unit. In addition, the use of analog-to-digital converters, microcontroller and digital communication interface for data transmission in the unit of recording and processing eliminates the influence of interference caused by the interference signals in the cable connections, electromagnetic interference, non-permanent by parasitic capacitance in the cable connections. The ability to diagnose entire area around the perimeter to identify all possible sources of stresses and evaluation of resource efficiency of spending on m�cemalim the voltage values of the magnetic field. Identified defects in the form of microcracks or the lack thereof, in combination with the obtained parameters of the magnetic field of the diagnosed area of the control element, and compare them with those of earlier surveys, which are stored in non-volatile flash memory unit for recording and processing according to the developed program allows to determine the residual capacity of UXES and, if necessary, replace defective control sample, excluding a false alarm.

The extension of the scope of the device for diagnosing a checklist of UXES is achieved by the use of forceps, which allow you to movably mount the sensor on the control element of virtually any shape and not just on the elements having cylindrical and rectangular geometric shape.

After a certain set of statistics of the results of the diagnostics checklist of UXES the proposed device allows to detect the presence of hidden defects in the initial state of the reference sensor when the formation of a defect occurs during the manufacturing process or the presence of a latent defect in the material used.

The invention is illustrated by drawings, where Fig. 1 shows the structural diagram of the electrical control devices for diagnostics of elements of UXES, Fig. 2 and 3 crest�of forceps to the housing of the search and detection of defects using eddy current method with ECP Fig. 4 and 5, the attachment of the forceps to the housing of the search and detection of defects on the basis of the method of metal magnetic memory with FSP.

The diagnostic device of the control elements of the control device of the derailment of rolling stock (OXPS) consists of an electronic unit for recording and processing 1 which is composed of non-volatile flash memory 1.1, real-time clock 1.2, display, 1.3, keyboard 1.4 and MCU 1.5, the communication interface 1.6 and 1.7, the unit is located in a rigid housing (not shown) from a battery (not shown). Electronic unit to detect and locate defects MPM method 2 posted in General metal shielding housing with PSP (not shown) and secured to one of the crimper jaws 4, as the power supply uses a power supply unit for recording and processing (not shown), contains a generator of sinusoidal signals 2.2 for the excitation coil FTP 2.1, filter 2.3 to highlight the second harmonic signal from the coil FTP 2.1, the unit of sampling and storage 2.4, the input of which is connected to the output of the filter 2.3, the pulse shaper 2.5, which synchronizes with the generator of sinusoidal signals, the unit of sampling and storage 2.4, the output of which is connected to the input of analog-to-digital Converter 2.6, microcontroller 2.7, the input of which is connected to the output of the analog-to-digital preobrazovatelya.6 and optocoupler the odometer 2.8, and to the exit - entrance communication interface 2.9 data in the unit of recording and processing 1. Electronic unit to detect and locate defects using eddy current method 3 are placed in a common metal shielding housing with ECP 3.1 and secured to one of the crimper jaws 4, as the power supply uses a power supply unit for recording and processing (not shown), contains a generator of sinusoidal signals 3.2, the signal which excites the secondary winding of the three-winding transformer VTP 3.1, which in turn excites the measuring and the reference winding of the transformer, the phase detector 3.3 determining the phase difference, the amplifier signals 3.4, coming from the measuring winding and the power amplifier signals 3.5 coming from the reference windings of the transformer analog-to-digital Converter 3.6, microcontroller 3.7, the communication interface 3.8 data in the unit of recording and processing. Chippers 4 made of a nonmagnetic material, allow to movably mount the sensors on the control elements of UXES and move the sensors along the intended fracture zone, while maintaining constant contact between the sensor and control element. Forceps 4 provide the contact force on the control element of OXPS not less than 10 N.

The device operates as follows.

Keyboard 1.4 the operator enters the value of br�forging characteristics (gradient magnetic field and a relative crack depth), and other necessary service information (current time and date, note), controlling their actions through display 1.3. Recorded information is stored in non-volatile flash memory 1.1.

Tongs 4 are placed at the proposed fracture zone of control elements of OXPS are moved around the axis of the control element 5 of UXES 360° while maintaining constant contact between the blocks of the search and detection of defects 2 and 3 and the control element 5 of UXES. The sinusoidal signal generator 3.2 excites the secondary winding of the three-winding transformer 3.1, which in turn excites the measuring and the reference winding of the transformer 3.1. Through the amplifier 3.4 measuring channel and the reference channel amplifier 3.5 signals from the respective windings arrive at the phase detector 3.3, the signal of which is fed to analog-to-digital Converter 3.6, and thence to the microcontroller 3.7, which records the phase difference between the signals from the measuring and reference windings of the transformer 3.1. The communication interface 3.8 data of the phase difference is converted according to the exchange Protocol unit recording and processing 1 and transferred to the interface unit 1.7 unit recording and processing 1, in which data conversion is performed according to the Protocol of exchange with the microcontroller 1.5. The microcontroller converts 1.5 data on the difference in f� in relative depth of the crack, compares these values with the accepted values stored in flash memory 1.1, and displays the results on display 1.3. In case of exceeding the threshold is triggered the led that indicates the presence in the test microcracks, the product is considered defective and further study is not exposed. The sinusoidal current generator 2.2 excites the coil FTP 2.1, second harmonic signal with a filter which produces 2.3 and enters the device sample-and-hold 2.4, which is synchronized with the sinusoidal current generator 2.2 by pulse shaper 2.5. The amount of the allocated second harmonic depends on the intensity of the external magnetic field, thus, knowing this value, you can determine the strength of the external magnetic field. With the device sample-and-hold 2.4 signal enters the analog-to-digital Converter 2.6, where the digital signal gets to the input of the microcontroller 2.7, which captures the magnitude of the second harmonic and transmits it to the communication interface 2.9. Simultaneously with optocoupler odometer 2.8 receives signals about moving PSP 2.1. The communication interface signals 2.9 about moving PSP 2.1 and the magnitude of the second harmonic is converted according to the exchange Protocol and transmitted to the communication interface 1.7 blocks of recording and processing 1, which is produced by the conversion�tion Protocol data communication with the microcontroller 1.5. The microcontroller converts 1.5 data on the value of the second harmonic in the strength of the external magnetic field and using the information about moving PSP, calculates the gradient magnitude of the magnetic field strength. After comparing the obtained values with the accepted values stored in flash memory 1.1, the data are displayed on the display, 1.3. In case of exceeding the threshold is triggered the led that indicates the presence in the test microcracks, the product is considered defective and further study is not exposed.

1. The diagnostic device of the control elements of the control device of the derailment of rolling stock (OXPS), including electronic unit to detect and locate defects on the basis of the method of metal magnetic memory (MPM) with a flux-gate transducer (FTP), electronic control unit and the search and detection of defects using eddy current method with the eddy current transducer (ect), characterized in that the device further has an electronic unit for recording and processing, comprising a housing, a power source, keyboard, display, non-volatile flash memory, real time clock, microcontroller, communication interface with blocks detect and locate defects and transmit data to the PC and the tongs, made of a nonmagnetic material, and �electronic unit detect and locate defects MPM method posted in General metal shielding housing with PSP and fixed on one of the jaws of forceps, the power supply uses a power supply unit for recording and processing, contains a generator of sinusoidal signals for the excitation coil PSP, a filter for selection of the second harmonic signal from the coil FSP, the unit of sampling and storage, the input of which is connected to the output of the filter, the pulse shaper, which synchronizes with the generator of sinusoidal signals, the output of sample and hold is connected to the input of analog-to-digital Converter, microcontroller, the input of which is connected to the output of the analog-to-digital Converter and optocoupler the odometer, and to the exit - entrance communication interface for data transmission in the unit of recording and processing, and an electronic controller detect and locate defects using eddy current method posted in General metal shielding housing with the probe and is mounted on one of the jaws of forceps, as the power supply uses a power supply unit for recording and processing, contains a generator of sinusoidal signals, a signal which excites the secondary winding of the three-winding transformer VTP, which in turn excites the measuring and the reference winding of the transformer, the phase detector determines the phase difference, the input of which is connected to the amplifiers of signals from the measuring and reference windings of the transformer, and the output - with WMOs�ohms analog-to-digital Converter, the microcontroller, the input of which is connected to the output of the analog-to-digital Converter and to the exit - entrance communication interface for data transmission in the unit of recording and processing.

2. The diagnostic device according to claim 1, characterized in that the continuous operation time of the device without recharging the power supply unit is not less than 8 hours.

3. The diagnostic device according to claim 1, characterized in that the keyboard has at least keys of digits 0-9 and a decimal point, 4 arrow keys, enter, cancel, on/off.

4. The diagnostic device according to claim 1, characterized in that the display has a resolution of 64×32 pixels and can display 4 lines, 10 characters and icons.

5. The diagnostic device according to claim 1, characterized in that the nonvolatile flash memory of the block of reception and processing of at least 4 MB.

6. The diagnostic device according to claim 1, characterized in that the data transmission between the units detect and locate defects and unit registration and processing occurs via RS-485 with two independent channels.

7. The diagnostic device according to claim 1, characterized in that the data transfer to the PC is done via the USB2 interface.0.

8. The diagnostic device according to claim 1, characterized in that the tongs provide a contact force on the control element of OXPS not less than 10 N.

9. The diagnostic device according to claim 1, characterized in that the forceps POS�Aleut to move them along the intended fracture zone, while maintaining constant contact between the blocks of the search and detection of defects and the control element of UXES.

10. The diagnostic device according to claim 1, characterized in that the electronic unit to detect and locate defects MPM method, in a single chassis with PSP, and the electronic unit of the search and detection of defects using eddy current method, in a single chassis with ECP mounted on the same sponge forceps.

11. The diagnostic device according to claim 1, characterized in that the electronic unit to detect and locate defects MPM method, in a single chassis with PSP, and the electronic unit of the search and detection of defects using eddy current method, in a single chassis with VTP, attached to the forceps.

12. The diagnostic device according to claim 1, characterized in that the electronic unit to detect and locate defects MPM method, in a single chassis with PSP, and the electronic unit of the search and detection of defects using eddy current method, in a single chassis with ECP, have led indication of exceeding the threshold.

13. The diagnostic device according to claim 1, characterized in that the microcontroller unit detect and locate defects MPM method stores the calibration data in the non-volatile memory.

14. The diagnostic device according to claim 1, characterized in that the microcontroller unit detection and �oisca defects by eddy current method stores the calibration data in the non-volatile memory.

15. The diagnostic device according to claim 1, characterized in that when the diagnosis control unit search and detection of defects by the method of MPM fixed magnetic field strength on elements of cylindrical shape at least (4*104-5*104)/M2and on the flat elements of the form - at least (12*104-13*104)/M2.

16. The diagnostic device according to claim 1, characterized in that when the diagnosis control unit detect and locate defects using eddy current method, fix the cracks with opening not less than 0.05 mm.



 

Same patents:

FIELD: transport.

SUBSTANCE: proposed system comprise stationary sets. Every of the latter consists of electrician automated workstation computer and assistant station-master automated workstation computer. Besides, it includes CAN-interface, control module, interface module, electric interlocking module, module for control over rain line and automatic locomotive signalling signals and interstation communication module. Complex locomotive safety device, transceiver and train brake system control module are installed at locomotive. Additionally, every stationary set incorporates extra module of radio interface and module of automatic crossing signalling. The latter are connected with assistant station-master automated workstation computer and control module via first CAN-interface. Locomotive incorporates extra module of radio signal logical processing module connected with indicator. Note here that radio signal logical processing module is connected via CAN-interface with transceiver output and that of complex locomotive safety device.

EFFECT: higher safety due to enhanced performances.

1 dwg

FIELD: transport.

SUBSTANCE: device comprises instrument with means for connection with rail circuit. Current collectors are arranged at free ends. Means for connection with rail circuit is composed of two lever spring-loaded mechanism. Every said mechanism is arranged at appropriate bogie axle box support. Current collector is composed of graphite shoe arranged at the end of resilient plate. The latter is provided with insulating element and secured at one of lever spring-loaded webs. Besides, it has roller arranged between the webs and lower horizontal axle. The latter is mounted at lower ends of said webs perpendicular to rail direction to allow the contact between one of rail sides and rail head side surface. Upper ends of webs are arranged at upper horizontal axle to turn in vertical lengthwise plane in metal angle piece webs. Said angle piece is rigidly secured at horizontal crosswise plane at extending part of axle box horizontal flange at outer part of said bogie. Spring expansion ends of said spring-loaded lever mechanism are secured at axle box horizontal flange and at spring-loaded lever mechanism web lower part.

EFFECT: higher control over rail circuit shunting in motion of railway vehicle.

4 dwg

FIELD: physics; control.

SUBSTANCE: invention relates to railway automation. The system enables to brake a train travelling along a railway track, when crossing a railway traffic light controlled from a control tower. The tower comprises a ground-based device which includes an encoder connected to the traffic light state control line, telegram generating means, at least one signalling beacon mounted on the track near the traffic light of interest. The beacon is connected to the encoder and has a means of transmitting a radio signal corresponding to the telegram generated by the encoder. An on-board device which satisfies ETCS standards comprises an antenna which receives a radio signal from the beacon, a computation and control unit connected to the antenna, processes the received signal and includes means of actuating the train braking system. The generating means of the encoder generate "passage prohibited" type telegrams which are compatible with ETCS standards and contain a "passage prohibited" parameter when the on-board device is in "ETCS Level 0" mode and the traffic light is in "passage prohibited" state. The computation and control unit of the on-board device is capable of interpreting the "passage prohibited" parameter as instructions to turn on train brakes, wherein the on-board device remains in "ETCS Level 0" mode. An emergency braking method used by the system when passing a traffic light comprises: when the traffic light is in "passage prohibited" state, the encoder generates a "passage prohibited" type telegram compatible with ETCS standards and containing a "passage prohibited" parameter. The signalling beacon transmits a radio signal corresponding to the "passage prohibited" telegram and, since the on-board device is in "ETCS Level 0" mode, the antenna of the on-board device receives the transmitted radio signal. Further, the received signal is processed to retrieve the "passage prohibited" parameter and the train braking system is actuated, wherein the on-board device remains in "ETCS Level 0" mode.

EFFECT: safer movement.

11 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: invention may be used for different direct- and alternating-current locomotives. In the method function of additional types of rolling stock adding and deletion is implemented in order to optimise diagnosing process. The approach based on safe operation depending on technical state is used as the method base concept; according to this approach technical state of an object is assessed against maintenance factors ensuring its reliable and safe operation in compliance with standard and regulatory and/or designer (project) documentation and remaining life is assessed against the essential maintenance factors. Factors which change (separately or in some aggregation) may lead to inoperative or faulty state are considered as essential maintenance factors. Depending on complexity degree assessment of technical state may be performed for an object against one or several test parameters. When values of test parameters cannot be measured directly, then they may be determined by processing of other parameters related to the unknown value by well-known functional relations.

EFFECT: increased efficiency of the method.

FIELD: transport.

SUBSTANCE: alert system comprises annunciator of approach to dangerous point connected via communication line with receiver arranged at locomotive, decoder, memory unit, gate multivibrator, three-input OR element, control circuit, reset pulse generator and people presence control pickups.

EFFECT: higher safety.

1 dwg, 1 tbl

FIELD: instrumentation.

SUBSTANCE: invention relates to railway automatics and telemechanics. The device for diagnostics of condition of electric resistance of rail lines in rail track circuits in sections of railways with AC electric traction comprises a recorder, a summator, a voltage divider, a threshold element and an alarm unit. The device is additionally equipped with the second recorder, the second summator, the second voltage divider, one logical NOT element, one switching element, one communication line, four rectification elements, four comparison elements, four alarm units, five threshold elements, five logical OR elements and four measurement transformers.

EFFECT: solution is aimed at provision of automatic diagnostics.

2 dwg

FIELD: physics.

SUBSTANCE: traffic light circuit further includes low potential drop diodes and backup LEDs. Each of N main LEDs of a LED array is further connected in parallel to a circuit which consists of series-connected low potential drop diode and backup LED. In case of breakdown of the junction of any of the main LEDs, current begins to flow through the backup LED and the low potential drop diode, thereby ensuring continuous flow of current through all LEDs of the LED array. Fully functional emission of the traffic light is therefore maintained in case of breakdown of one or more LEDs. The disclosed LED traffic light therefore improves reliability of the LED matrix and increases the distance from a control station to a controlled traffic light.

EFFECT: high reliability of the LED array and longer distance from a control station to a controlled traffic light.

1 dwg

FIELD: transport.

SUBSTANCE: transmitter contains diagnostic module, switching module and control unit. The transmitter has following devices included in it: electromagnetic relay, controlling and monitoring microcontrollers, optoelectronic transducer, pulse transformer and control unit for electromagnetic relay the winding of which is connected with switching module output and contact group of electromagnetic relay is connected with plug coupler. Herewith, the first inputs of controlling and monitoring microcontrollers are connected with control unit outputs, and the second input of controlling microcontroller is connected with diagnostic module connector. The first output of controlling microcontroller is connected with the first input of optoelectronic transducer, the second output of controlling microcontroller is connected with the second input of optoelectronic transducer via pulse transformer, the first output of monitoring microcontroller is connected with one indicator, and its second output is connected with other indicator. The third output of monitoring microcontroller is connected with the third input of optoelectronic transducer the first output of which is connected with contact group of electromagnetic relay.

EFFECT: longer operational life of transmitter due to backing-up signals and diagnosing transmitter state and design simplification.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to positioning of railway vehicles. Proposed system comprises satellite navigation system station connected to differential correction computer, data acquisition and processing unit including processor connected to data base and gateway, positioning unit including controller connected to memory unit of the station digital models and data base, computer-aided workstation and navigation communication hardware installed at moving objects. Every navigation device comprises navigation signal receiver, GSM/GPRS radio station with Wi-Fi adapter, slots for two sim-cards, inertial navigation system unit, controller two plug-in memory units and microprocessor. Besides, it includes onboard train motion controller and data transmission circuit. GSM/GPRS radio station is connected via GSM/GPRS circuit in TCP/IP protocol to data acquisition and processing unit.

EFFECT: higher accuracy and validity of location.

5 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway ACS, remote control and communication systems. Proposed method consists in moving the train at low speed over track section with faulty track devices. At normal movement the following trains are authorised to move at higher speed. Note here that coordinates of the trains are compared to span track circuit occupancy data. In case track sections with false hardware interlocking, interlocking is removed. Proposed device comprises automated workstations of assistant station-master and electrician, control transceiver and transceivers of radio channel, light and crossing signaling control signals, power interlocking signals, automatic track signaling and interoffice communication signals. Control transceiver additionally comprises the module for control over interaction between system components with modules for detection of the following faults: track circuit shut sensitivity, track circuit occupation accepted sequence, track circuit clearing accepted sequence, detection of logically false occupied track circuits, detection of logically false cleared track circuits and detection of trains approach to distance smaller than track circuit length.

EFFECT: accelerated recovery of span capacity after locking of track sections.

2 cl, 2 dwg

FIELD: measurement equipment.

SUBSTANCE: invention relates to non-destructive testing devices and is intended to determine coordinates of an inspection sensor when searching defects. A general-purpose coordinate device for a manual defect detector is arranged on a test object and includes at least one inspection sensor, and it is made in the form of a flat frame of an open type, the free ends of which are installed with a possibility of being turned on supporting fasteners fixed on the test object. With that, on the frame there are two encoders arranged, each of which is provided with a cable connected to a cassette holder located between the encoders, in which a cassette is installed and provided with at least one inspection sensor with a possibility of its movement along the test object surface.

EFFECT: improving object test reliability, as well as reducing labour input for use of a coordinate device.

5 dwg

FIELD: construction.

SUBSTANCE: linear guide with a sliding carriage is installed on a framework. Laser range profilometers with the possibility of moving them to change the position by the conveyor are mounted on the carriage. Laser scanners fixed on a bracket with one laser emitter and two receivers of the reflected signal, which are installed in the laser scanners, are used as the laser range profilometers. The receivers read the reflected signal simultaneously of the same cross-section of a reinforced concrete cross-tie. Minimum two laser scanners for simultaneous measurement of two or more reinforced concrete cross-ties are fixed on the carriage.

EFFECT: simplification of the system and measuring process and an improved performance and efficiency of the system operation due to the provision of a possibility to measure the parameters of two or more cross-ties at the same time.

2 dwg

FIELD: physics.

SUBSTANCE: method comprises inspecting a portion of a railway line using a magnetic flaw detector mounted on a flaw detector car; identifying defects and structural components (bolt and welded joints of rails, metal rail plates etc), signals from which and positions of which are stored in a test card; using data on the structural components of the railway line for navigation during ultrasonic flaw detection of the same portion of the railway line; detailed analysis of objects identified by the magnetic flaw detector using an ultrasonic flaw detector; correcting the test card based on the flaw detection results.

EFFECT: high accuracy, quality and rate of detecting defects on rails.

2 cl, 5 dwg

FIELD: measurement equipment.

SUBSTANCE: device is used to monitor the deviation from straightness at the surface of the side active face of a rail head in horizontal plane and at the rail head running surface in vertical plane by contactless method. The device for automatic monitoring of rails' welded joint straightness comprises a casing, a mechanical portion, end face panels, contactless location sensors, sensors for contactless measurement of distance to the rail surface and an electronic unit. The mechanical portion consists of locating prisms closed by the end face panels on the outer side, the panels are fitted by cutouts corresponding to the surfaces mating the surfaces to be monitored with built-in magnets being installed between them. Each prism is equipped by backing-up tips contacting with the monitored surfaces. The contactless location sensors interfaced with the electronic unit are set near the tips. In the central casing part between the auxiliary prisms there installed are the sensors for contactless measurement of distance to the rail surface which are interfaced with the electronic unit providing for the display of the nonstraightness at analogue indicators and at a graphic display unit and for the storage of nonstraightness results in a memory block. The invention is also related to the method of using the device.

EFFECT: possibility of getting visualised and reliable information, reduction of time required for monitoring of rails' welded joint straightness.

2 cl, 10 dwg

FIELD: transport.

SUBSTANCE: railway testing system contains track measuring truck and network centre and reference stations connected with the system. The truck contains control-computing complex to which track geometrical parameters measurement tools, navigational signals receiver, display unit, memory unit, transmit-receive unit, processor, communication interface unit, local alarm messaging unit and acoustical-electrical transducers are connected. Each reference station includes transceiver for navigational signals. Network centre consist of communication server, processing and control unit and data archiving unit. Also, external track gang notification system is included in the system.

EFFECT: improved safety of track gangs and mobile testing facilities.

2 cl, 1 dwg

FIELD: transport.

SUBSTANCE: diagnostics car incorporated with the train and equipped with strain-gage mounted axles, strain-gage auto couplings, meters, systems of satellite navigation and wireless communication are used to define the track geometry conditions. Cure radii, positions of rail threads in plan and profile, track gage and other parameters related to electronic GPS map to relate them to the data of last trips of track metering train. At a time, strain-gage mounted axles are used to define vertical and lateral forces, their relationship in interaction between track and rolling stock and between rail and wheel. Strain-gage auto couplings are used to define dynamic forces at rolling stock to estimate dangerous section of the track for empty cars to be related to track profile. Proceeding from track geometry parameter measurements and train speed, probability of train derailing is estimated caused by rolling of wheel flange on the rail. Track sections are defined which can have anti-derailing factors lower than standard ones to work out recommendations on current maintenance of said tracks.

EFFECT: higher validity and efficiency of estimation.

2 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to control over the state of track, particularly, to control over displacement of welded railway rail skeleton section displacement. Proposed method consists in defining the position of markers on rail skeleton relative to fixed objects (reference sleepers). Welded butts are used as said markers. Relative arrangement of selected welded butt with respect to selected reference sleeper is defined by the data of flaw detector car magnetic control channel so that signals from, say, bird pad and welded but can be unambiguously identified on defectogram. Besides their relative spatial position can be unambiguously identified by the data received from track transducer (coordinate meter) of flaw detector car. Magnitude of displacement is defined by comparing current data with that obtained before.

EFFECT: instrumental control over displacement.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to track safety control and serves for remote detection of changes in track conditions caused by rail structure faults and occurrence of dangerous objects in groundwork. Proposed method comprises recording of vibroacoustic pulses in rail resulted from interaction of wheel pairs with rail joints at equal opposite distances therefrom. Signals registered on train passing said rail joints are filtered out and accumulated. Note here that after passage of first train over known-good track said signals are converted to maximum affinity to conserve parameters of correcting circuit. In passage of the next train of track section - signal generator result of comparison is compared with preset threshold. In case it is exceeds decision is made about availability of affected track ahead of running train.

EFFECT: higher reliability of remote detection in real time conditions.

3 cl, 5 dwg

FIELD: transport.

SUBSTANCE: Invention relates to railway transport, particularly, to determination of track irregularities and other defects. Propose method consists in defining the level controlled track section of electromagnetic radiation by video control appliances in shifting electromagnetic radiation receiver along said section. Measured level of electromagnetic radiation is used to define track wear and defects. Track image is locked in visible spectrum of electromagnetic radiation in polarisation filter with rotary gating axis and processing of images by estimation of Stocks parameters.

EFFECT: determination of track whatever defects and irregularities by whatever processing means.

4 dwg

FIELD: transport.

SUBSTANCE: invention relates to flaw inspection and nondestructive checks. Invention consists in using pulses of surface electromagnetic waves radiated forward and/or backward relative to train direction, registering reflection of said pulses from irregularities of the track and defining type of track and/or rolling stock defects from character of said irregularities.

EFFECT: detection of dangerous macroscopic defects at distance exceed stopping distance and registration of derailment.

2 dwg

FIELD: railway transport; measuring facilities.

SUBSTANCE: invention relates to special purpose devices for measuring separate geometric parameters of reinforced concrete ties, i.e. propelling and canting of rail flats on reinforced concrete ties. Proposed device contains housing 1 with fitted-on transport handle 2, right-hand support 3 and left-hand support 4. First support screw 5 and second support screw 6 are installed on right-hand support 3, third support screw 7 and fourth support screw 8 are installed on left-hand support 4, right-hand catcher 9 and left-hand catcher 10 are installed on ends of housing 1, sensor 11 is secured on first support screw 5. Housing 1 carries also right-hand orientation handle 13 with pushbutton 15 and left-hand orientation handle 14. Base 16 is fastened in central part of housing 1, controller 17 and supply compartment 18 being secured on base 16. Device for measuring rail flat canting contains housing 1 with fitted-on transport handle 2, right-hand support 3 and left-hand support 4. First support screw 5 and second support screw 6 are installed on right-hand support 3. And third support screw 7 and fourth support screw 8 are installed on left0hand support 4. Right-hand catcher 9 and left-hand catcher 10 are installed on ends of housing 1, first sensor 11 is secured on first support screw 5, and second sensor 19 is installed on fourth support screw 8. Housing 1 carries right-hand orientation handle 13 with pushbutton 15, and left-hand orientation handle 14. Base 16 with fitted-on controller 17 and supply compartment 18 is secured in central part of housing 1. Moreover, support 21 is connected to housing 1 through vertical rods in central part.

EFFECT: improved efficiency of measurements, increased accuracy and provision of operative measurement of parameters under checking.

3 cl, 2 dwg

Up!