EP1799524A1 - Method and device for error-tolerant direction-oriented axle counting of the wheels of rail vehicles - Google Patents
Method and device for error-tolerant direction-oriented axle counting of the wheels of rail vehiclesInfo
- Publication number
- EP1799524A1 EP1799524A1 EP05797434A EP05797434A EP1799524A1 EP 1799524 A1 EP1799524 A1 EP 1799524A1 EP 05797434 A EP05797434 A EP 05797434A EP 05797434 A EP05797434 A EP 05797434A EP 1799524 A1 EP1799524 A1 EP 1799524A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- counting
- wheel
- tolerant
- track section
- axle counting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
- B61L1/16—Devices for counting axles; Devices for counting vehicles
- B61L1/162—Devices for counting axles; Devices for counting vehicles characterised by the error correction
Definitions
- the invention relates to a method and a device for fault-tolerant directionally oriented axle counting of rail vehicles according to the preamble of claims 1 and 7.
- Axle counting systems are used for free and busy reporting of track sections in the railway network.
- Inlets to a track section are monitored with doubled wheel sensors (so-called double sensors).
- double sensors As soon as at least one of the two wheel sensors of a dual sensor is influenced by a railroad wheel at an inlet to the free track section, the evaluation unit reports an occupancy for safety reasons and remains in this state.
- This classification is sufficient for occupying the axle counting system (or the track section) influencing a wheel sensor by cutting (dampening only one wheel sensor with direction change of the wheel) or starting (damping both wheel sensors with change of direction of the wheel) or even by something else, for the subsequent safe clearance message da ⁇ against a highly reliable count of the railway wheels both the inlet and the expiration of the axes necessary.
- EP 1 086 873 A1 recommends the group-wise evaluation of the axes taking into account the tensile speed. In this evaluation, wheel sensor pulses are discarded which do not have the same pattern (direction of travel and speed) as those of the other wheels on the same double sensor within one observation period.
- Spurious impulses for example cuts and pendulums
- counting errors on slowly moving axles and malfunctions of a wheel sensor are not controlled by this method.
- the object of the present invention is therefore to provide a method and a device for fault-tolerant axle counting of rail vehicles, with which a reliable control of false pulses (including cuts and pendulum free sections), counting errors, caused by Ver ⁇ count of double sensors during the entry and exit of a train, as well as malfunction of a wheel sensor (mechanical or electrical failure) is possible.
- a short-term influence such as the cutting or the oscillation of the wheel sensor of a double sensor of a counting point no longer has to be a permanent erhaften occupancy of the formerly free track section lead, since sufficient redundancy exists and in the case of a railway wheel by the other wheel sensors secure detection is guaranteed.
- the double counting of each axis at a counting point in track sections equipped in this way can result in exactly the same number of axle counts (logical monitoring circuits) that result from combinations of the double sensors.
- these are the sums AC, AD, BC, BD (corresponds to four monitoring circuits).
- extended rules now apply which can correct any enumeration in individual monitoring circuits.
- the defect of a double sensor leads to the permanent occupancy of the affected monitoring circuits (for example, in the case of a defective double sensor A, the monitoring circuits AC and AD).
- the other monitoring circuits here BC and BD
- the other monitoring circuits remain functional, so that the operation does not have to be interrupted. Only another error leads to malfunction.
- Another possibility of interference suppression during the train passage is the temporary suppression of the analog signal evaluation.
- a maximum possible signal suppression time is also determined based on the influence length of a Radsensorsystems by the wheel, while due to the geometric conditions of the wheel assembly can not be expected with another wheel and must. Analog signal changes during this period are therefore not further processed, so that special Anbau ⁇ th on trains (for example, rail brakes) not recorded or counted were ⁇ and thus cause no interference.
- the redundant double sensors are arranged opposite one another on both rails.
- the redundant double sensors offset by at least one threshold compartment on opposite or on the same rail.
- the doubling of the double sensors is not necessary for each counting point of a track section and can be limited to particularly fault-prone counting points.
- 1 shows the schematic representation of a wheel in the region of a Dop ⁇ pelsensors.
- FIG. 6 shows a flow chart for the sub-method of the dynamic Störunterdrü ⁇ ckung during train crossing.
- the axle counting takes place when a wheel 5 on a rail 4, a double sensor 3, consisting of the wheel sensors 1, 2, crosses.
- the generated signal currents (see FIG. 2) of the individual Radsen ⁇ sensors 1, 2 allow the direction detection of the wheel 5 and thus give a directional count pulse .
- the double sensors 3 are at a track section (Achsoutheastern) respectively at the inlet and at the outlet redundant (double ) either on the tracks 4 opposite (Fig. 3) or offset zu ⁇ arranged one another. Both double sensors together form a counting point at which the trains are counted in or out depending on the direction of travel.
- Both Zähl ⁇ points (depending on the track section, but it may also be only one for a stump track or more than two for turnouts or switch sections) are the Evaluation unit connected, which performs the further evaluation of the signals für ⁇ .
- FIG. 4 a firstly describes the method with which the loading / clearing of the internal monitoring circuits is determined. For this purpose, it is checked in step S100 whether faulty wheel sensor signals (signals outside the permissible limits) are present. If this is the case, then the affected monitoring circuit goes to fault S103. In S105, a home position request is made. If this is fulfilled, the program jumps to S100, otherwise the basic setting request remains (S 105).
- the program checks in S101 whether a wheel sensor system of the monitoring circuit is busy. If yes, the affected circle is reported as busy, if not, the circle releases and the monitoring of Radsensor ⁇ signals is continued in S100. After S102, it is determined in S104 whether at least one wheel sensor system of the supervisory circuit is still busy. Only when this is denied, does the program continue with the check in S106 as to whether an axis could be counted properly. Once this has been done, it is checked in S109 whether the sum of the counted and counted axes is 0. If this condition is met, the program returns to step S100, otherwise a home position is requested in S112.
- the program returns to S109, when the home position is executed, the program jumps to S100. If the axis was not properly counted in program step S106, then it is checked in S107 whether there was an oscillation of the double sensor without temporal signal overlap. If not, then in S110 the monitoring circuit is freely reported and the program jumps to S100. If oscillation without overlap is detected in S107, it is determined in S108 whether the last busy message was also caused by oscillation without overlap but caused by the other wheel sensor system. In the negative case, the internal monitoring circuit releases and the program returns to S100. Otherwise, the internal monitoring circuit is signaled busy in S111 due to the pendulum error and remains in this state as long as no axis could be properly counted (S113). If an axis could be counted in S113, the program jumps to S109, from where processing is performed as described above.
- S206 If S206 has been answered in the negative, it is checked in S207 whether at least two monitoring circuits have counted back to zero. If no, there is the possibility of a basic position in S209. If this is not the case, the program returns to S204, otherwise the track section is cleared in S210 and the evaluation starts again at S200. If, however, at least two internal monitoring circuits were counted down to 0 in S207, then all other internal monitoring circuits are reset in S208 and thus also the track section in S210 is freely reported.
- S201 was also answered in the negative, it is checked in S202 whether all internal monitoring circuits have been commutated in at least two different ways. If no, the program proceeds with S210, if yes, the section is reported in S203 disturbed. Subsequently, in S205, a basic position request is made, which in the case of positive answering leads to clearing of the track section (S210), in the negative case the fault is received.
- Figure 5 shows the method dynamic extension of the pulses.
- the sensor system 1 a wheel sensor of the double sensor
- system assignment 1 forwarding to the evaluation unit
- S302 a time measuring Bedämpfungsdauer Debt ⁇ MPFT which continues as long starts 1 U
- a variable occupancy extension time TDYN I is now formed based on TBED A MPFT. If it has now been determined in S305 that the system 1 has been re-attenuated, the program returns to S302, if not, it is checked in S306 whether the second wheel sensor system (system 2 of the double sensor) has been attenuated. If the result of this check is positive, the program jumps to S308 and the system occupancy 12 is reset. If the result from S306 is negative, the system occupancy is not reset in S308 as long as neither system 1 nor system 2 has been damped (S305 and S306) and the occupancy extension time TDYNI has not started (S308). If TDYNI has expired, the system allocation is reset in S308 and the program returns to S300.
- FIG. 6 shows the method of dynamic interference suppression. For this, it is determined in step S400 whether a wheel sensor system is damped. If this is the case, the system allocation is set in step S401 (that is, forwarded to the evaluation unit) and then a time measurement for determining the damping period TBED ⁇ MPFT is started in step S402, otherwise the monitoring of the damping of the sensor system in S400 is continued. If the end of the sensor damping is determined in S403, then the system occupancy is reset in S404 and an interference suppression time T S T ⁇ RU is calculated on the basis of the determined system damping period in S405, otherwise the measurement of the system damping duration is continued in S402.
- step S406 a new damping of the sensor system is checked. If this has occurred, it is waited in S408 until the system damping is ended. Then the program returns to step S400 again and evaluates new dampings. If no sensor damping has been detected in step S406, the program returns from step S407 to step S406, as the noise suppression time has not started and no sensor system has been attenuated. In the case of the elapse of the disturbance suppression time, the program finally returns to step S400 and evaluates new sensor attenuations.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004049555 | 2004-10-12 | ||
PCT/EP2005/010958 WO2006040137A1 (en) | 2004-10-12 | 2005-10-12 | Method and device for error-tolerant direction-oriented axle counting of the wheels of rail vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1799524A1 true EP1799524A1 (en) | 2007-06-27 |
Family
ID=35478592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05797434A Withdrawn EP1799524A1 (en) | 2004-10-12 | 2005-10-12 | Method and device for error-tolerant direction-oriented axle counting of the wheels of rail vehicles |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1799524A1 (en) |
CN (1) | CN101039834A (en) |
WO (1) | WO2006040137A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101386306B (en) * | 2007-09-11 | 2011-08-10 | 上海宝信软件股份有限公司 | Axle counting sensing device |
CN101337552B (en) * | 2008-08-21 | 2011-11-23 | 北京佳讯飞鸿电气股份有限公司 | Counting axle system using double 2-vote-2 system |
CN101712329B (en) * | 2009-03-17 | 2012-05-23 | 南宁铁路局 | Gravity inductive type axis-counting device and method for detecting state of tract district using same |
CN102285362A (en) * | 2011-06-16 | 2011-12-21 | 王国润 | Wheel detecting device with two axle counters and axle count calculating method thereof |
CN102514597B (en) * | 2011-12-12 | 2014-05-21 | 北京交控科技有限公司 | Method for monitoring track state based on zone control system in CBTC (communication based train control) system |
CN103010259B (en) * | 2012-11-26 | 2016-07-27 | 河南重工起重机集团有限公司 | The logic error correction method that the wrong report of modified model sky rail traffic track region is accused |
PL2899093T3 (en) * | 2014-01-27 | 2018-11-30 | Thales Management & Services Deutschland Gmbh | Redundancy Switching of Detection Points |
DE102014216726A1 (en) * | 2014-08-22 | 2016-02-25 | Siemens Aktiengesellschaft | Method for increasing the availability of a wheel recognition device and wheel recognition device |
CN105438220B (en) * | 2015-12-24 | 2017-04-12 | 北京安润通电子技术开发有限公司 | Redundant fault-tolerant axle counting processing device and processing method thereof |
CN107472299B (en) * | 2017-07-26 | 2019-11-12 | 黑龙江瑞兴科技股份有限公司 | A kind of rail transportation axle-counting system based on FPGA phase-detection |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3431171C2 (en) * | 1984-08-24 | 1986-11-27 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Track vacancy detection device with axle counting |
DE4233546A1 (en) * | 1992-10-01 | 1994-04-07 | Siemens Ag | Method for correcting axle counting errors in railway installations and device for carrying out the method |
DE19515345A1 (en) * | 1995-04-26 | 1996-10-31 | Sel Alcatel Ag | Method for increasing the availability of multi-section axle counting devices |
DE19515694A1 (en) * | 1995-04-28 | 1996-10-31 | Sel Alcatel Ag | Procedure for the automatic correction of counting errors in multi-section axle counting systems |
DE10029124C2 (en) * | 2000-06-14 | 2002-05-02 | Siemens Ag | Procedure for track-free and busy notification |
-
2005
- 2005-10-12 CN CNA2005800349238A patent/CN101039834A/en active Pending
- 2005-10-12 WO PCT/EP2005/010958 patent/WO2006040137A1/en active Application Filing
- 2005-10-12 EP EP05797434A patent/EP1799524A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
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See references of WO2006040137A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101039834A (en) | 2007-09-19 |
WO2006040137A1 (en) | 2006-04-20 |
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