Method of simulation of emergency response activities at automatics and telemechanics facilities
FIELD: physics, control.
SUBSTANCE: method of simulation of emergency response activities is intended for estimate of average time until recovery of operability of railway automatics and telemechanics facilities (RATMF). The method includes a procedure of determination of average time until RATMF recovery and the software complex. The constant values on the rail road section are entered, and also the climate features are represented as elementary data arrays, each of which corresponds to the section block. Also the general auxiliary data including the time of simulation are entered. After the data entry the simulation is started that consists in creation of elementary random events - time intervals falling to various operations in view of distribution laws and constant values of the data on the section, interrelation at implementation of the process of maintenance and repair of RATMF, and subsequent summation of elementary random events in view of probability of repeated occurrence with the purpose of obtaining of multiple time instances until recovery for each section block. As a result of obtaining of multiple time instances until recovery for each section block the arithmetic average of all time instances is calculated, and the mean time until recovery of RATMF is determined.
EFFECT: obtaining of the optimum value of average time until RATMF recovery.
The presented method simulation of emergency recovery works (ABP) in the sector of automation and remote control is designed to calculate the average time to restore operability of railway automatics and telemechanics, includes a method for determining the estimated values of mean time to repair of technical means (RATM) and functional software package, this model implements.
Known technical solution patent No. 2357215 "Method of repair and maintenance and used in the way of hardware-software complex for diagnostics and system for quality control of repairs and maintenance offers a purely deterministic (deterministic) simulation model on the basis of clearly defined structural diagram of a hardware-software complex system.
The advantage of this solution is the ability to electronically gather measurement data and its qualitative assessment, that allows to eliminate the "human factor" and to ensure the objectivity and reliability of the measurement data and inspection results.
The disadvantage of this method is the absence of stochastic (uncertain) component in the model system maintenance tools RATM and statistical is on account of random factors, that is not possible to adapt this model to develop a hardware-software complex.
The method of simulation ATS in the sector of automation and telemechanics of the method consists in the following.
The average time to recovery in General is defined as the sum of the average seek time of failure Tn, average time alerts about a new fault Ton, average time spent on passing to the failed device TCRand actually the average time Troubleshooting Tus.
Each of the components in the formula (1), in turn, can further be divided into components.
Analyzing the formula (1), we can conclude that the time to recovery directly and indirectly depends on many factors, such as: technical specifications used on site systems INTRODUCTION, technology maintenance and operation systems of railway automatics and TELEMECHANICS on the site, the equipment of the railway, its configuration, the number and qualifications of personnel, level and quantity of technical equipment for fault diagnosis and predating state systems INTRODUCTION, ways of entrance (approach) to the place of failure, weather and climatic characteristics of the region, to which m is the part of the railroad.
In this case, the analytical methods for many reasons, not applicable, so use the method of statistical simulation Monte Carlo method.
The method consists in the following. Using pseudo-random sensors using the statistics of failures "played" pseudo-random manner, time, place and cause of failure of technical facilities. Further, all deterministic events and processes ABP model describes the usual deterministic formulas and formalized procedures. In fact, the specific implementation (realization) of a random process ABP is each time different, so the result of statistical modeling ("draw") each time you receive a new, distinct from other implementation of the investigated random process ABP.
A single "run" built a simulation model allows one to obtain one "artificial" implementation of the investigated random process ABP and, accordingly, one value of Tinfrom a sample to estimate its mean. Many implementations, the resulting multiple "run" model, will be above the sample, with which the known methods of mathematical statistics can be obtained the average design average time to restore the Oia health T in.
Development of a simulation model can be divided into several stages:
1. Stage failure occurs". This operation initiates the whole cycle, because, to resolve the failure, he should be able to occur. Since failure of a technical object MUST be random in nature, it is necessary to "play"using the appropriate distribution.
2. The stage of "notification of failure". Notification of failure may be different depending on the presence or absence of means of control of the technical state of the system LIE on the plot.
3. Stage "a preliminary analysis of the problem" involves awareness of information, analysis on the basis of the obtained information, a preliminary determination of the nature of the failure and its location.
4. Stage preparation includes the preparation of spare parts, tools and the necessary kit to correct the failure.
5. Stage movement to the location of a fault". Time passage is substantially depends on the placement and location of failure, and the method of delivery personnel to the location of a fault (the latter depends, including equipment distance vehicles), entrance ways, method of maintenance, the physical condition of the work of the ICA, going to the elimination of failure, time of year, weather conditions and other
6. Stage "Troubleshooting". The search time of a fault depends significantly on the skills of personnel involved in the elimination of failure, the complexity of the failure, from the physical condition of the employee.
7. Stage "Troubleshooting". The duration of the operation in General is determined by the same factors that operation "Troubleshooting".
8. The stage of the "health check". If with some probability resolved the problem, which was not required to return to the operation "Troubleshooting".
9. The stage of "engagement" - the final operation. The operation randomly and largely depends on the physical condition of the employee and alerting capabilities on the inclusion of a technical object RATM.
Algorithmically basic sequence of steps is an algorithm with branching, as in operation "health check" feature branching, representing transitions on previously executed operations. Themselves branching represent the deterministic part of the model.
Thus, given the basic sequence of steps associated with the recovery for the same object RATM, allowing for multiple runs to get razlichayushchei process from the time of failure of object until recovery taking into account random factors.
Every single "run" of the model will simulate two events:
- refusal object RATM;
- the recovery of the object RATM.
Each of these events will be calculated by the model time of occurrence:
- the moment of occurrence of the failure object RATM tOTK iis the execution result of the operation failure occurs";
the moment of recovery of the object RATM tvos iis defined as the sum of the results of the entire primary sequence of operations starting from operation failure occurs and ending operations "including":
where j, s, w - counts the number of returns to operations "Troubleshooting," Troubleshooting", "preparation", respectively.
the time of return, enacted regardless of the time of passage to a place of denial by the same procedure;
l, q, c is the number of executions of the respective operations, taking into account the probability of their recurrence, it always exceeds the number of repeated operations on the unit. The number of repetitions of transactions is played by branching operations.
Therefore, the length of time to recovery of the i-th failure or, in other words, the long-term is th i-th unhealthy state of the object RATM is defined as the difference between:
The model allows to calculate various implementations only one failure and one recovery object RATM, starting from a zero time. Re-run the model always starts from zero time, i.e. from the beginning of the simulation.
Each individual event generated by the model, is a separate implementation of the repair process of RATM objects on the plot, and the entire set of events is a statistical aggregate.
The result of the operation of the developed model is a set of time values to restore a single object RATM. All simulation results time to recovery of interest LIE in the area of Railways should be summarized in a table.
|The results of the simulation time to recovery of interest LIE in the area of Railways|
|No. of object RATM||The number of refusals object RATM,||Time to restore each failure|
|1||TVoss 11||TVoss 21||TVoss 31||...|
|2||TVoss 12||TVoss 22||TVoss 32||...|
|m||TVoss 1m||TVoss 2m||TVoss 3m||...|
The treatment table is carried out by statistical methods. In this case the simulation results are considered as rap is esentative sample.
The average time to recovery on the part of the railway is the arithmetic mean of the times of recovery of RATM objects presented in the table.
Calculation formula for calculating the mean time to restore is:
The method of simulation of emergency recovery works in the sector of automation and telemechanics, wherein the permanent data about the area of Railways, including specifications used on site systems INTRODUCTION, technology maintenance and operation systems of railway automatics and TELEMECHANICS on the site, the equipment of the railroad, its configuration, the number and qualifications of personnel operating systems RATM on the site, the level and quantity of technical equipment for fault diagnosis and predating state systems INTRODUCTION, the presence of ways of the entrance (approach) to the place of failure, weather and climatic features of the region in which is located the site of the railway the roads are in the form of a set of elementary data arrays, each of which corresponds to the block of land on the segment or isolated area at the station, also administered General assistance data that includes the simulation time sufficient to obtain stable estimates with the front time to recovery technical means RATM at the site of Railways, after data entry start modeling, which consists in the formation of elementary random event - time intervals, coinciding with the different operations for each block on the stretch and isolated area on the station subject to the laws of distribution and persistent data about the area of Railways in the sequence of their occurrence with regard to the relationship in the implementation of maintenance and repair of hardware RATM on the site, including the failure occurs, a notification of a malfunction, a preliminary analysis of the problem, preparation, movement to and from fault, Troubleshooting, Troubleshooting, validation, efficiency, engagement, and subsequent the summation of elementary random events with a given probability of re-occurrence with the purpose of obtaining multiple implementations of time to recovery for each block on the stretch and isolated area at the station, of which by calculating the arithmetic mean of all realizations of time to restore all block sections and isolated parcels within the particular section of the Railways is determined by the average time to recovery technical means RATM on it.
FIELD: measurement equipment.
SUBSTANCE: system comprises an optical facility of information transmission regarding dynamics of surface state installed in front of the surface along direction of its motion and connected to a surface image recorder. The facility for transmission of information on dynamics of the surface state is a rigid technical endoscope equipped with the possibility to illuminate the recorded surface. Besides, the endoscope may be equipped with a channel of laser illumination, and the recorder may be a digital camera. Besides, the digital camera may be connected to a computing centre for processing of recording results.
EFFECT: increased resolving power of a system.
4 cl, 1 dwg
FIELD: measurement equipment.
SUBSTANCE: group of inventions refers to sensor (12) monitoring device of a transport vehicle, and mainly of an automobile on fuel elements, to the sensor of the transport vehicle with the monitoring device, as well as to monitoring method of sensor (12) connected to the first data processing unit (16). The proposed monitoring device of sensor (12) of a transport vehicle, and mainly an automobile on fuel elements, which includes the following: the first monitoring module (18) intended to monitor operation of sensor (12) for failures, the second monitoring module (20) that is also designed for monitoring of operation of sensor (12) for failures, the third monitoring module (30) designed for monitoring of operation of the second monitoring module (20) of the sensor, the first data processing unit (16) including the first module (18) of the sensor monitoring and connected to sensor (12), the second data processing unit (24) connected to the first data processing unit (36) and having the possibility of outputting signal (26) of response to a failure at detection of malfunction of sensor (12). (dwg.1) Subject of the invention is also represented with a monitoring method of the sensor connected to the first data processing unit, which involves the following operations: monitoring of the sensor operation for failures with the first data processing unit; reserve monitoring of the sensor operation for failures; monitoring of performance of reserve monitoring operation for failures and output of signal of response to failure with the second data processing unit at detection of the sensor malfunction. Advantage of the invention consists in the fact that monitoring modules, and mainly the second and the third monitoring modules of the sensor, can be arranged in each control device connected through a signal bus to controlled sensors. The other advantage of the invention consists in the fact that requests for responses to a failure can be transmitted faster via discrete lines. Such a solution creates big advantages, mainly in electromobiles where a very quick reaction of a driver is required.
EFFECT: providing improved, more efficient and at the same time quick possibility of reliable output of signal of response to a failure at detection of a sensor malfunction; performance of distributed monitoring of components and functions in systems with sensors combined in a network; possibility of transfer of requests for reaction to a failure to other control devices via a non-signal bus, but via discrete lines.
11 cl, 5 dwg
FIELD: instrument engineering.
SUBSTANCE: pressure distribution on the surface of the ballistic object of nominal shape in flight is preliminary determined; according to the obtained values the basing gasostatic support is created which provides a similar pressure distribution on the surface of the ballistic object. The ballistic object is placed in equipment for determination of the main central axis of inertia on the basing gasostatic support. According to the position of the ballistic object in the gasostatic support the direction of the air-path axis of the object is determined under the condition of zero lift force, minimisation of deviations of the main central axis of inertia from the air-path axis of the object is performed under the condition of zero lift force to the permissible values of deviations of the main central axis of inertia from the longitudinal axis of the design system of coordinates defined in the design system of coordinates.
EFFECT: reduction of the duration of the process of correction of the main central axis of inertia of a ballistic object.
FIELD: instrument making.
SUBSTANCE: method of diagnostics in process parameter transducer comprises the steps that follow. Process fluid parameter is measured to output control signal to two-wire process control circuit that depends upon measured process parameter. Process control two-wire circuit is connected with current measurement circuit. Note here that current measurement circuit is configured to measure current passing in process control two-wire circuit. Circuit of measuring voltage across terminals is connected to terminals of process parameter transducer. Circuit of measuring voltage across terminals is configured to measure voltage across terminals configured for connection with process control two-wire circuit. Diagnostics signal is received from said process control two-wire circuit to perform diagnostics thereof in response to said diagnostics signal. Note here that diagnostics is carried out using current measurement circuit and voltage measurement circuit. Besides, invention covers also the device for implementation of above described method.
EFFECT: lower probability of error transmission.
20 cl, 6 dwg
SUBSTANCE: rolling stock intended for maintenance and current repair is subjected to diagnostics by means of stationary bench diagnostics system at transient diagnostics test conditions. Derived diagnostic symptoms are analysed to identify one of three rolling stock states, i.e. sound, partial serviceability and pre-emergent state. Current maintenance and repair are carried out subject to one of said revealed states. Set of selected diagnostic symptoms is used to define forecast pre-emergent state. Said set of symptoms is loaded in stationary bench or onboard diagnostic system to define in standard operating conditions the rolling stock either partial serviceability for limited operation at light duty or pre-emergent state for withdrawal from operation in strictly specified time.
EFFECT: comprehensive and ordered organisation of current maintenance and repair.
FIELD: instrument making.
SUBSTANCE: wireless technological adapter of communication comprises a jacket, having multiple holes; a plug connected to the first hole of many holes; a connection of a field device arranged in the second one of many holes; besides the jacket, the plug and the connection of the field device define a chamber in it; at least one circuit board arranged in the chamber, besides, the circuit board comprises electronics, including a wireless communication circuit for provision of communication of the wireless technological adapter with one or several protocols of wireless communication, and is connectable to the field device via the field device connection; and besides substantially all remaining volume in the chamber is filled with a solid filling compound. The wireless communication adapter is configured so that protection against explosion is provided, and also preferably comprises internally safe electronics, and also the adapter comprises an explosion-resistant barrier in the point of connection to a wire device and includes electronics, which is fully sealed.
EFFECT: implementation of a wireless transmitter, which may be attached to a wire field device, which is either explosion-resistant or internally safe, without deterioration of approval rating of such field device.
13 cl, 3 dwg
SUBSTANCE: cable circuitry comprises a contactless interface to transmit signals between a cable circuitry and a sensor module, besides, the sensor module is galvanically separated from the cable circuitry, and transmission of signals between the cable circuitry and sensor module is carried out by an optical, inductive or capacitance method. Besides, the cable circuitry comprises a unit of signal processing and a cable interface for connection of a cable connecting the cable circuitry with a metering converter. The unit of signal processing is integrated into a signal track. The unit of signal processing takes signals via the cable interface from the metering converter, processes it and sends via the contactless interface to the sensor module, and also takes signals via the contactless interface from the sensor module, processes them and transmits via the cable interface to the metering converter.
EFFECT: expansion of functional capabilities.
31 cl, 6 dwg
SUBSTANCE: apparatus for measuring a variable quantity by converting the derivative of the quantity has a differentiating measuring transducer for said quantity, which is connected by its output to first and second input terminals of an active electric filter which is based on three-terminal device and an operational amplifier, capacitors of equal capacitance and resistors with equal resistance. Said apparatus also includes electronic switches with a control unit, a comparator, a time relay and a command device, as well as additional resistors. The method of measuring the variable quantity involves converting its derivative using a filter with a transfer function for which the numerator is of the first order and the denominator is of the second order. The output signal of that filter is measured, where all roots of the transfer function of such a filter are real and negative. Poles of said transfer function are multiples and the modulus of its zero is twice greater than the modulus of the poles. The variable quantity is measured with regular repetition of the beginning of the measurement process at zero initial values of the filter variables generated at the instant the output signal of the filter passes through the zero value. Each subsequent repetition of the beginning of the measurement process, except the first, is carried out at the moment when the number of passages of the output signal of the filter through the zero value, after the previous such passage, is equal to a given odd number.
EFFECT: low maximum error when measuring a variable quantity, shorter time for which the measurement error enters the acceptable interval after the beginning of the measurement process at a non-zero value of the measured quantity.
4 cl, 4 dwg
FIELD: oil and gas industry.
SUBSTANCE: device includes testing chamber, dust supply system, system for creation of the specified air humidity and temperature keeping, device for determining the degree of dust concentration, and measurement station. Measurement station includes in-series installed thermometre, flow metre, wind metre, and pressure metre. At that, device is equipped with gas inlet system, and testing chamber is of toroidal shape and represents tight closed air line having explosion proof design inside which there located are tested instruments and elements of systems of air-and-gas and dust control, and fan with controlled speed of air jet flow. At that, measurement station is also equipped with gas analyser, pitot tube, hygrometre and aspirator. At that, each of sensors of measurement station is installed inside testing chamber through the appropriate inlet devices having explosion-proof design.
EFFECT: full simulation of real operating conditions of instruments and elements of dust and gas compound systems of mine atmosphere.
SUBSTANCE: position of points on the surface of an object is determined and a computational model of the object is created from the obtained points. The direction of the velocity axis of the object is established provided that the lift force is equal to zero. Deviation of the principal axis of inertia at centre of gravity from the velocity axis of the object is then minimised, provided that lift force equals zero until attaining allowable values of deviation of the principal axis of inertia at centre of gravity from the longitudinal axis of the structural coordinate system given in the design documentation.
EFFECT: more efficient use of ballistic object.
FIELD: radio engineering, communication.
SUBSTANCE: group of inventions relates to transmission of messages between a train and a control centre. The method of transmitting alarm data between a first train involved in an accident and a control centre comprises steps of, if the working state of said train matches the accident, determining if the main radio link between the train and ground infrastructure with which a control centre is connected can be used. Otherwise an emergency radio link is established between the communication device of the first train and the communication device of a second train crossing the coverage area of said emergency communication means. After establishing a link between the trains, alarm data relating to the first train are transmitted and stored at the second train. Data relating to the first train are transmitted using a second link between the second train and the control centre. An on-board installed on the trains comprises a means of assessing the state of the train, a main communication means and a self-contained emergency communication device. The communication framework comprises said on-board systems, base stations and a control centre.
EFFECT: high reliability of data transmission.
14 cl, 3 dwg
SUBSTANCE: proposed system comprises shunting locomotive controller and locomotive control board, radio modem and relay unit connected thereto. Central control station is equipped with tower control device connected with info board, terminals of railway station power interlocking track relay repeaters and with info concentrator and radio modem. Track controller fitted at fixed buffers are connected to info concentrator while microwave radars. Every microwave radar is connected with appropriate track controller while shunting locomotive controller is connected with brake system pressure transducers and wheel turn angle transducers, relay unit extra output being connected with brake valve adapter. Central control station comprises control computer for control via radio modem over forced stoppage at hazard of collision with fixed buffer.
EFFECT: higher reliability, expanded operating performances.
2 cl, 2 dwg
FIELD: information technology.
SUBSTANCE: system for determining performance of two joined railway stations comprises a road server connected to processors of personal computers of automated workstations at each station and a simulation device. The system also includes a performance evaluation unit consisting of a performance comparison and evaluation module, a predicted performance computation module and a performance dynamics module. Each station is fitted with an additional automated workstation which consists of a personal computer, a computational unit, two data receiving units and a time recording unit. Each simulation device is connected to the computation unit which consists of a standard performance computation module.
EFFECT: designing a universal system for measuring and evaluating performance of stations.
FIELD: radio engineering, communication.
SUBSTANCE: automated train traffic control system comprises an automated workstation of a traffic controller of a control station, having a processor with display and input/output units, a fixed wireless modem and a communication server. Locomotives are fitted with an on-board wireless modem and a train control system. The automated workstation of the traffic controller includes a unit for simulating train operation and a database of train schedules. Each locomotive is fitted with a safety device, a radio channel gateway and a CAN-MVB gateway. The fixed and on-board wireless modems include transceivers and an automatic band switch. The communication server connected to the processor is connected to hardware/software of an automated system for inputting and analysing a traffic schedule, a system for creating schedules, a system for analysing, reporting and monitoring fault elimination, an electric centralised control system, a centralised traffic control system and a train traffic schedule database.
EFFECT: faster control.
2 cl, 1 dwg
SUBSTANCE: invention relates to railway dispatcher control. Proposed method comprises computation of distance to rolling stock end of ahead train by summation of increments of its coordinate and train speed by increment of traversed path coordinate. Received train motion data are selected in the order of decrease in precision for computation of yellow-to-green light changeover at second light signal in direction of train motion. Proposed system comprises automatic interlocking devices, station power interlocking devices and control centre. Control centre computer is connected with power interlocking devices and locomotive onboard control devices connected with satellite navigation receiver. Control centre automated workstation incorporates train interval and speed data computation and ranking module connected with PC processor of said workstation.
EFFECT: higher efficiency of automatic control over train.
2 cl, 1 dwg
FIELD: information technology.
SUBSTANCE: system for inspection and real-time control of locomotive stock includes interconnected dispatcher personal computer, server, memory unit, output form generating unit, signal processing and generating unit, monitor, information control and inputting unit, locomotive approach simulating unit and locomotive crew deployment simulating unit, unit for determining presence and state of locomotives, service speed control unit and train situation simulating unit. The system further includes a locomotive ranking unit, which is connected to the processor of the dispatcher computer. The server is connected to a railway transport safety subsystem of an automated train control subsystem, which is connected to a block of rolling stock diagnosis equipment. The automated locomotive enterprise control subsystem is connected to a block of onboard locomotive diagnosis equipment.
EFFECT: high efficiency of inspection and real-time control of locomotive stock.
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
SUBSTANCE: invention relates to railway transport and can be used for control over train service under conditions of repair. Proposed system comprises computer-aided workstations with their processors connected via communication server and data base transmission network to receive data of train schedule and daily plan of gaps, software-hardware of computer-aided control systems of switching and freight terminals, and unit of routing train service simulation. Simulation system comprises train schedule options generator, generator of loading options for railway stations, units of forecast of loading and departure, train service model, data base and traffic forecast unit.
EFFECT: higher capacity.
2 cl, 2 dwg
SUBSTANCE: invention relates to systems of operating control over trains at railway transport. Proposed system comprises processor with I/O unit and display, memory, first unit of analysis and correction and output forms generation unit. Additionally, this system incorporates units of analysis and correction, trains data base, data base on train flows variations in sections, operating assignment data base, data base on infrastructure maintenance schedules and unit of simulation of "in-window" operation. Besides, this system incorporates the data base on train traffic schedules, data base on train assignment/lay-off, control decision make unit, control-aided system of transportation operating control and computer-aided workstations.
EFFECT: higher efficiency of yards operation control.
2 cl, 1 dwg
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: public transport.
SUBSTANCE: proposed system contains two control circuits, namely automatic and manual ones. Automatic circuit includes two on-board controllers, first data display device, speed sensor, position sensors, series interfaces and motor controllers. Manual circuit includes control panel with control outputs, series interface and second data display device.
EFFECT: provision of centralized high-accuracy graph-and-internal traffic control of monorail trains, improved safety of passenger carriage.