EP4405229A1 - Verfahren zum erkennen einer beschädigung an einem transportsystem und steuereinrichtung dafür - Google Patents
Verfahren zum erkennen einer beschädigung an einem transportsystem und steuereinrichtung dafürInfo
- Publication number
- EP4405229A1 EP4405229A1 EP22790286.3A EP22790286A EP4405229A1 EP 4405229 A1 EP4405229 A1 EP 4405229A1 EP 22790286 A EP22790286 A EP 22790286A EP 4405229 A1 EP4405229 A1 EP 4405229A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- measurement data
- rail
- sensors
- damage
- measurement
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0081—On-board diagnosis or maintenance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
- B61L23/042—Track changes detection
- B61L23/045—Rail wear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
- B61L23/042—Track changes detection
- B61L23/048—Road bed changes, e.g. road bed erosion
Definitions
- the present invention relates to a method for detecting damage to a transport system that has a rail-bound vehicle and an infrastructure element that can be passed by the rail-bound vehicle.
- the invention also relates to a control device for carrying out the method.
- An abnormality detection device is known from document US Pat. No. 10,953,900 B2, in which a large number of vehicles moving on a rail are each equipped with an acceleration sensor.
- each of the vehicles is equipped with an acceleration sensor, and the acceleration data from all the sensors are evaluated in order to determine an abnormality in the vehicle or in the rails.
- the invention relates to a method for detecting damage to a transport system that has a rail-bound vehicle and an infrastructure element that can be passed by the rail-bound vehicle.
- the rail-bound vehicle can be a train, for example a train for passenger transport or a train for goods transport.
- the infrastructure element that can be passed by the rail-bound vehicle can be a track body.
- the track body can comprise a track bed, a rail, a railway sleeper and corresponding fastening elements for this purpose.
- the transport system can be a cable car.
- the rail-bound vehicle can be the gondola of a cable car and the infrastructure element can be a cable car cable or a guide rail of the cable car.
- the rail-bound vehicle can be a tram and the infrastructure element can be a rail of the tram. Damage to the transport system can be damage to the rail-bound vehicle or damage to the infrastructure element that can be passed by the rail-bound vehicle.
- the method is carried out using a plurality of sensors arranged on the rail-bound vehicle.
- the plurality of sensors are operable in a first measurement state and a second measurement state.
- the sensors can be operated independently of one another. Accordingly, each sensor can collect individual measurement data and forward this to a higher-level evaluation unit. Alternatively, the sensors can also be operable in a calibrated manner with respect to one another. Here, the sensors collect measurement data depending on the measurement data collected by the other sensors. This measurement data can then be aggregated and then forwarded to the higher-level evaluation unit. Depending on the measurement status, the sensors can record different types of measurement data.
- the individual measurement parameters of the first and the second measurement state can be different.
- the method comprises a first measurement data acquisition step for acquiring first measurement data by at least one sensor operated in the first measurement state and a second measurement data acquisition step for acquiring second measurement data from the sensors operated in the second measurement state.
- the first measurement data can already be acquired sufficiently by a sensor operated in the first measurement state.
- the second measurement data can be recorded by all sensors operated in the second measurement state.
- the first or second measurement data can be determined depending on the type of sensors.
- the sensors can be acceleration sensors.
- the first and second measurement data can then be acceleration data.
- the sensors can be force sensors for detecting a force acting on the sensors.
- the first and second measurement data can be detected forces.
- Other types of sensors such as tilt sensors or optical sensors can also be used according to the first aspect of the invention.
- the first and second measurement state of the sensors can be adapted to the respective parameter to be measured.
- the first and second measurement state of the sensors can be adapted to the respective parameter to be measured.
- two different frequency ranges of the electromagnetic spectrum can be recorded in the first or second measurement state.
- the sensors are inclination sensors, the inclination can be detected in the first and second measurement states in relation to different coordinate systems.
- the parameter to be measured can be recorded with a different degree of accuracy in the first or second measurement state of the sensors.
- the first and second measurement data can either be recorded directly and further processed according to the method.
- the first and second measurement data can first be recorded and then pre-processed in a subsequent step. In other words, a directly measured parameter can be converted into a parameter to be evaluated.
- the pre-processing can be, for example, a fast Fourier analysis, a wavelet analysis, an order analysis or a principal component analysis.
- the method further comprises a first matching step for determining a first matching of the first measurement data with a first stored comparison data set and a second matching step for determining a second matching of the second measured data with a second stored comparison data set.
- a rail-bound vehicle that is already damaged can be measured with the at least one sensor that is operated in the first measurement state.
- the data collected here can then form the first comparison data set.
- the first comparison data set can be created as part of a prepared measurement.
- a rail-bound vehicle can have been prepared in accordance with damage that can be detected by means of the method.
- the data collected during the measurement of the prepared rail-bound vehicle using a sensor operated in the first measurement state can then form the first comparison data set.
- the second comparison data set can have been created, for example, as part of a prepared comparison trip.
- an infrastructure element of a transport system have been prepared in accordance with a damage that can be detected by means of the method.
- the measurement data collected by the sensors operated in the second measurement state while passing the prepared infrastructure element can form the second measurement data set.
- an infrastructure element that has already been damaged earlier can be measured by means of the sensors in the second measurement state.
- the measurement data collected during the measurement of the previously damaged infrastructure element can form the second comparison data set. Partial agreement of the first measurement data with the first comparison data record or partial agreement of the second measurement data with the second comparison data record can be sufficient for determining the first agreement or the second agreement. In other words, it is not necessary for the measurement data to match the respective comparison data set completely in order to determine a match.
- the method further includes a first damage detection step for detecting damage to the rail-bound vehicle, depending on the first match, and a second damage detection step for detecting damage to the infrastructure element passable by the rail-bound vehicle, depending on the second match.
- Damage to the rail-bound vehicle can, for example, be damage in a wheel area of the rail-bound vehicle. In particular, it may be damage to a wheel bearing or a wheel of the rail vehicle. However, damage to other areas of the rail-bound vehicle can also be detected. If the rail-bound vehicle is a train with several connected wagons, damage to a connecting element of the individual wagons can also be detected. Alternatively or additionally, damage to a frame element or a housing of the rail-bound vehicle can also be detected.
- Damage to the infrastructure element that can be passed by the rail-bound vehicle can, for example, be damage to a rail or a wheel-mounting element for accommodating a wheel of the rail-bound vehicle in the transport system.
- the rail-bound vehicle is a cable car, for example, a Damage to the ropeway of the cable car can be detected.
- the rail-bound vehicle is a train, damage to a track bed and/or a belt rail can also be detected. Further damage to the rail-bound vehicle or to an infrastructure element of the transport system that can be passed by it can also be detected by the method according to the first aspect.
- partial agreement of the first or second measurement data with the first or second comparison data set can be sufficient to detect damage.
- the proposed method for detecting damage to the transport system thus makes it possible, on the one hand, to detect damage to an infrastructure element of the transport system using fewer sensors.
- not all vehicles moving in the transport system have to be equipped with sensors.
- not all sensors have to be queried in order to obtain the second measurement data. After all, not all measurement data received have to be above a specified limit value. Partial agreement of the second measurement data with the stored comparison data record is already sufficient to detect damage to an infrastructure element.
- the proposed method thus enables damage to a transport system to be detected more quickly and at the same time more easily.
- the sensors arranged on the rail-bound vehicle can be set up to acoustically detect an acceleration of the rail-bound vehicle relative to the infrastructure element that can be passed by the rail-bound vehicle with predeterminable detection frequencies.
- the detection frequencies can be specified externally, for example by a higher-level control device, which can specify a detection frequency for the sensors by means of control signals.
- the sensors can also specify a specific detection frequency independently of one another or independently of a higher-level control device. For example, if a certain condition is present, a sensor can change from a first detection frequency to a second detection frequency.
- the sensors can therefore be adapted to different operating conditions within the transport system.
- the detection and evaluation of acoustic signals represents a particularly simple method for determining an acceleration. Acoustic acceleration sensors are also generally readily available, so that the method can be carried out using simple and inexpensive means.
- a first subset of the sensors can be arranged on a front end section in the direction of travel of the rail-bound vehicle and a second subset of the sensors can be arranged on a rear end section in the direction of travel of the rail-bound vehicle.
- the first and the second subset can each comprise at least two sensors.
- the front end portion may be arranged on a towing vehicle, such as a locomotive, of the rail vehicle.
- the front end section can delimit the rail-bound vehicle in the direction of travel of the same to the front. If the rail-bound vehicle is the gondola of a cable car, the front end section can be arranged at a front end of the gondola in the direction of travel of the gondola.
- the rear end section can be the rear end, in the direction of travel of a train, of the wagon arranged last in the direction of travel of the train. If the rail-bound vehicle is the gondola of a cable car, the rear end section can be arranged on a rear front of the gondola in the direction of travel of the same.
- the at least two sensors can be arranged symmetrically on the front or rear end section of the rail-bound vehicle.
- one of the sensors can be arranged on an outer section of the front or rear end section that is on the left in the direction of travel of the rail-bound vehicle.
- a second of the sensors can then be arranged on an outer section of the front or rear end section on the right in the direction of travel of the rail-bound vehicle.
- at least one sensor can be arranged on an outer section of the front or rear end section of the rail-bound vehicle, which is upper in the direction of travel of the rail-bound vehicle.
- Another of the sensors can be arranged in a lower outer section, in the direction of travel of the rail-bound vehicle, of the front or rear end section of the rail-bound vehicle.
- the arrangement of sensors on a front and a rear end section of the rail-bound vehicle has the advantage that acceleration data can be recorded without interference from other components of the rail-bound vehicle, which are arranged between the front and the rear end section of the rail-bound vehicle.
- the use of at least two sensors on the front and rear end sections enables redundant acquisition of acceleration data on the respective end sections.
- the method can include a first measurement step for operating the first subset of sensors in the first measurement state and a second measurement step for operating the second subset of sensors in the second measurement state.
- the first measurement step and the second measurement step can be carried out at the same time.
- the sensors arranged at the front end portion of the rail vehicle can be operated in the first measurement state, while at the same time the sensors arranged at the rear end section of the rail vehicle can be operated in the second measurement state.
- the first and the second measurement status can be set here by specifying different detection frequencies at the respective sensors. Carrying out the first and the second measuring step at the same time enables the first and second measured values to be recorded at the same time. As a result, the duration of the implementation of the method can be shortened.
- the method can include a first changing step for changing the measurement state of the first subset of the sensors from the first to the second measurement state when a predetermined condition is present. Furthermore, the method can include a second changing step for changing the measurement state of the second subset of the sensors from the second to the first measurement state when the predetermined condition is present.
- the predetermined condition can be the reaching of a predetermined measurement duration of the sensors in the first or second measurement state.
- the predetermined condition may be the detection of a standstill of the rail-bound vehicle, for example by detecting a negative acceleration followed by a long-lasting zero acceleration.
- the predetermined condition can also be the detection of a maximum acceleration, above which it is no longer possible for the sensors to detect a further acceleration in the selected measurement state.
- the measurement method can be adapted to different operating situations of the transport system. As a result, the acquisition of measurement data, which is acquired in an incorrect operating state of the transport system, can be avoided and/or corrected by changing the measurement state.
- the first measurement data acquisition step can include specifying a first acquisition frequency of the sensors and acquiring the first measurement data with the predetermined first acquisition frequency and a predetermined first acquisition time.
- the first acquisition frequency and the first acquisition time can be adapted to the acceleration data acquired in the first measurement state.
- the first detection frequency can have a value greater than 1500 Hz, in particular 1660 Hz.
- This high-frequency sampling rate is particularly suitable for detecting damage to the rail-bound vehicle.
- the first detection time can be more than 10 seconds, in particular 12 seconds per sensor. Due to the high sampling rate, this acquisition time is sufficient to acquire the first acceleration data.
- the higher power consumption associated with the high sampling rate of the sensors operated in the first measurement state is reduced by selecting a correspondingly shorter acquisition time.
- the second measurement data acquisition step can include specifying a second acquisition frequency of the sensors and acquiring the second measurement data with the predetermined second acquisition frequency and a predetermined second acquisition time.
- the first detection frequency and the second detection frequency can differ here.
- the first detection time and the second detection time also differ here.
- the second Detection frequency less than 100 Hz, in particular less than 50 Hz.
- This low-frequency sampling rate is particularly suitable for detecting damage to an infrastructure element that can be passed by the rail-bound vehicle.
- the second detection time can be less than 6 hours, in particular 4 hours. Due to the lower power consumption of the sensors operated in the second measurement state associated with the low-frequency sampling rate, the second acquisition time can be significantly increased in order to be able to acquire the second measurement data sufficiently.
- the sensors operated in the first or second measurement state can accordingly be adapted to the type of the first or second measurement data.
- the energy consumption of the sensors required to collect the measurement data can be regulated.
- the method can include a first class classification step for classifying the first measurement data into at least two classes depending on the first match. Furthermore, the method can include a second class classification step for classifying the second measurement data into at least two classes depending on the second correspondence.
- the two classes can be identical for the first and second measurement data. Alternatively, the first and second measurement data can each be classified into two different classes.
- the two classes can describe different types of damage, damage to the rail-bound vehicle or damage to an infrastructure element that can be passed by the rail-bound vehicle.
- the first or second measurement data can be classified into a “defective” class and a “okay” class. In this case, for example, only those measurement data are classified in the “okay” class for which the detection of damage is sufficiently excluded.
- the at least two classes can be differentiated using a graded damage category.
- the graded damage category allows the severity of the damage to be classified more precisely. For example, classification into the classes “okay”, “slight damage”, “severe damage” and “very bad damage” can take place.
- a person responsible for the transport system for example an operator of a railway line, can decide whether a section of the transport system in question needs to be repaired immediately or whether routine maintenance needs to be carried out at a later date. Accordingly, the needs of a user can be taken into account when carrying out the method. This can increase user-friendliness.
- the first classification step can include comparing the first measurement data with a subset of the first comparison data set.
- the second classification step can include a comparison of the second measurement data with a subset of the second comparison data set.
- the subset of the first or second comparison data set can be selected using a distance measure.
- the first measurement data and the first comparative data set can be graphically represented as a two-dimensional or three-dimensional set of points. A geometric distance can then be determined between the individual data points of the graphic representation of the first measurement data and the individual data points of the graphic representation of the first comparison data set. The subset can then be selected on the basis of this distance.
- the entirety of the first measurement data can also be classified in one of the at least two classes.
- the method described in connection with the first measurement data for classifying the first measurement data into at least two classes can also be used analogously for classifying the second measurement data into the two classes based on a comparison of the second measurement data with a subset of the second measurement data set.
- the classification of the first or second measurement data in the at least two classes by means of a comparison with a subset of the first or second comparison data set offers the advantage that only a subset of the comparison data set is considered. Fewer comparison steps are necessary for this than with a comparison with the complete comparison data set. The computing effort and the number of computing operations required to carry out the comparison can thus be minimized.
- the subset of the first or second comparison data set can comprise a plurality of data points and the comparison can be made with the plurality of data points.
- the respective data points can be selected using a distance measure, for example.
- a subset suitable with regard to specific criteria can be selected for carrying out the comparison.
- the proposed method for detecting damage can thus be adapted to different operating states of the transport system. Furthermore, the proposed method for detecting damage can be adapted to various user specifications.
- the first measurement data acquisition step, the first agreement determination step and the first class classification step can be repeated several times within a predetermined period of time.
- the first damage detection step can include detecting damage to the rail-bound vehicle if a plurality of the first measurement data recorded within the predetermined period of time has been classified into a class that corresponds to damage to the rail-bound vehicle based on the graded damage category.
- the first measurement data acquisition step, the first agreement determination step and the first class classification step can, for example, be repeated regularly, in particular five times a day. This allows the status of the transport system to be recorded at different times within a day. The concrete loads on the transport system during the day can thus be simulated more precisely.
- damage to the rail-bound vehicle is only detected if, in five repetitions of the first measurement data acquisition step, the first step of determining agreement and the first class classification step, three of the five recorded first measurement data were classified in the class that corresponds to damage to the rail-bound vehicle.
- randomly occurring measurement errors can be compensated for and the accuracy of the damage detection can be improved.
- the second measurement data acquisition step, the second agreement determination step and the second class classification step can be repeated several times within a predetermined period of time.
- the second measurement data can include a plurality of data points and the second damage detection step can include detecting damage to an infrastructure element that can be passed by the rail-bound vehicle if a predetermined proportion of the data points of the second measurement data recorded within the specified period of time has been classified in a class that based on the graded damage category corresponds to damage to an infrastructure element that can be passed by the rail-bound vehicle.
- damage to the infrastructure element can only be detected when two out of three data points of the second measurement data have been classified in the class that corresponds to damage to the infrastructure element.
- randomly occurring measurement errors can be compensated for and the accuracy of the damage detection can be improved.
- the predetermined number of data points of the second measurement data recorded within the specified time period can be greater than 50%, in particular greater than 90% of the total data points of the second measurement data recorded within the specified period.
- the predetermined number can be less than 100% of the total data points of the second measurement data recorded within the predetermined time period. Accordingly, in order to detect damage to an infrastructure element, the second measurement data does not have to match the second comparison data set completely. During the acoustic acquisition of acceleration data, it can happen that, for example Acceleration data, which may indicate damage, are not recorded due to loud noises or an inept choice of sampling times.
- the invention relates to a control device which comprises a communication interface for receiving measurement data as described above.
- the control device is set up to carry out the method according to one of the first aspects.
- FIG. 1 schematically shows a transport system with sensors operated in different measuring states according to an embodiment of the invention.
- FIG. 2 schematically shows the transport system of FIG. 1 according to a further embodiment of the invention.
- FIG. 3 shows a flow chart with steps of a method for detecting damage to a transport system according to an embodiment of the invention.
- FIG. 4 shows a flowchart with steps applicable to the method shown in FIG.
- Figure 1 shows schematically a transport system 100 with a rail-bound vehicle 10 and an infrastructure element 20 that can be passed by the rail-bound vehicle 10.
- the transport system 100 is shown in Figure 1 in the form of a railway line on which a train 10 moves along a railway track 20.
- the train 10 includes several wagons 10a, 10b, 10c.
- the railway rail 20 comprises a plurality of railway sleepers 22, two rail tracks 24 and a track bed 26.
- a plurality of sensors 12, 14, 16, 18 are arranged on the train 10, which are set up to acoustically detect an acceleration of the train 10 relative to the railway rail with definable detection frequencies 20 to capture.
- a first subset 12 , 14 of the sensors is arranged at a front end portion 11 of the train 10 .
- a second subset 16 , 18 of the sensors is located at a rear end portion 13 of the train 10 .
- the first subset 12, 14 of the sensors is operated in a first measurement state.
- the second subset 16, 18 of the sensors is operated in a second measurement state.
- the sensors 12, 14 detect acceleration values of the train 10 relative to the rail 20 with a first acquisition frequency of 1660 Hz.
- the sensors 12, 14 are in a high-frequency measurement state, shown with HF in FIG .
- the acceleration values detected by the sensors 12, 14 are processed, for example by means of electronic signal processing, to form first acceleration data which are representative of an acceleration of the train 10 relative to the railway rail 20.
- the second subset 16, 18 of the sensors also detects acceleration values of the train 10 relative to the rail 20 with a second detection frequency of less than 50 Hz.
- the low-frequency second measurement state of the sensors 16, 18 is shown in FIG.
- the acceleration values detected by the sensors 16, 18 are processed, for example by means of electronic signal processing, to form second acceleration data which are used for an acceleration of the train 10 relative to the Rail track 20 are representative.
- Damage 50 to the rail-bound vehicle 10 can be detected by means of the sensors 12, 14 operated in the high-frequency first measurement state HF.
- the damage 50 is shown in the form of a vibration of the wagon 10a relative to the railway rail 20, which is indicated by two double-headed arrows.
- the vibration 50 can be caused, for example, by damage to a wheel and/or a wheel bearing of the wagon 10a. Furthermore, with the sensors 16, 18 operated in the low-frequency measuring state NF, damage 60 to the infrastructure element 20 can be detected. The damage 60 to the infrastructure element 20 is shown in FIG.
- the acceleration data recorded by the sensors 12, 14, 16, 18 are transmitted to a communication interface 72 of a control device 70.
- the acceleration data generated by the sensors 12 , 14 operated in the first measurement state HF are recorded by the control device 70 as first measurement data 30 .
- the acceleration data generated by the sensors 16 , 18 operated in the second measurement state NF are recorded by the control device 70 as second measurement data 40 .
- the control device 70 compares the first measurement data 30 with a first comparison data set 32 to determine a first match according to the procedure described above. Such a comparison of the first measurement data 30 with the first comparison data record 32 is described below.
- the first measurement data 30 and the first comparison data set 32 are graphically represented as a two- or three-dimensional set of points.
- the first measurement data 30 and the first comparison data set 42 can be represented as a set of points in the form of a two-dimensional graph.
- the first measurement data 30 and the first comparison data set 32 can be represented as a set of points in the form of a three-dimensional grid.
- a distance measure such as the Euclidean distance, can then be applied between the graphical representation of the first measurement data 30 and the graphical representation of the first comparison data set 32 .
- the Euclidean distance denotes the length of the shortest connecting path between two objects arranged in space or on a plane Points. This distance is invariant under movements.
- This distance measure is then applied between all points of the set of points of the graphical representation of the comparison data set 32 and each individual point of the set of points of the graphical representation of the first measurement data 30 .
- the k data points of the comparison data set 32 which have the smallest distance to the respective point of the first measurement data 30 are now selected for each point of the point set of the graphical representation of the first measurement data 30 .
- a check is then carried out into which classes the k data points of the subset have been assigned.
- the respective point of the set of points of the graphic representation of the first measurement data 30 can also be classified in this class. If, for example, a majority of the points in the subset of the comparison data set 32 were classified in the “okay” damage class, the point in question from the set of points of the first measurement data 30 can also be classified in the “okay” damage class. On the other hand, if a majority of the points in the subset of the comparison data set 32 were classified in the “defective” damage class, then the point in question from the set of points in the first measurement data 30 can also be classified in the “defective” damage class. This procedure can be repeated for all points of the point set of the graphical representation of the first measurement data 30 .
- the control device 70 also compares the second measurement data 40 with a second comparison data set 42 to determine a second match according to the procedure described above.
- FIG. 2 schematically shows the transport system 100 according to FIG. 1 at a point in time at which a first changing step or a second changing step for changing the respective measurement states of the sensors 12, 14, 16, 18 was carried out.
- the other components of the transport system 100 in FIG. 2 are equivalent to those in FIG.
- the first subset of the sensors 12, 14 is in the second low-frequency measurement state NF, in which acceleration values of the train 10 are recorded with a recording frequency of less than 50 Hz and first acceleration data are generated.
- Damage 60' to the rail 20 can be detected by means of the acceleration data generated by the sensors 12, 14 in the second low-frequency measurement state NF.
- the damage 60' is again shown in FIG.
- the second subset of the sensors 16, 18 is in the first high-frequency measurement state HF, in which acceleration values of the train 10 are recorded with a recording frequency of 1660 Hz and converted into second acceleration data.
- Damage 50' to the rail-bound vehicle 10 can be detected by means of the sensors 16, 18 operated in the high-frequency measuring state HF.
- the damage 50' is shown in the form of a vibration of the wagon 10c relative to the railway rail 20, which is indicated by two double-headed arrows.
- the vibration 50' can be caused, for example, by damage to a wheel and/or a wheel bearing of the wagon 10c.
- the acceleration data recorded by sensors 12, 14, 16, 18 are transmitted to communication interface 72 of control device 70.
- the acceleration data generated by the sensors 12, 14 operated in the second measurement state are recorded by the control device 70 as second measurement data 40'.
- the acceleration data generated by the sensors 16, 18 operated in the first measurement state are recorded by the control device 70 as first measurement data 30'.
- the control device 70 compares the first measurement data 30' with the first comparison data set 32 to determine the first match according to the procedure described above.
- the controller 70 compares the second measurement data 40 with the second comparison data set 42 for determining the second match according to the procedure described above.
- the control device 70 recognizes the damage 50' to the rail-bound vehicle 10 according to the procedure described above.
- the control device 70 recognizes the damage 60' to the infrastructure element 20 according to the procedure described above.
- FIG. 3 shows steps for carrying out the method for detecting damage 50, 50'; 60, 60' on the transport system 100 of FIGS. 1 and 2 in a chronological sequence.
- the method begins with a step SO.
- the procedure is divided into two variants. However, as explained above, these can be carried out in parallel.
- first measurement data 30, 30' are acquired by at least one sensor 12, 14, 16, 18 operated in a first measurement state LF, HF.
- a first agreement determination step Sb1 a first agreement of the first measurement data 30, 30' with a first stored comparison data set 32 is determined.
- damage 50, 50' to the rail-bound vehicle 10 is detected in a first damage detection step Sc1.
- second measurement data 40, 40' are acquired by sensors 12, 14, 16, 18 operated in a second measurement state HF, LF.
- a second agreement determination step Sb2 a second agreement of the second measurement data 40, 40' with the second stored comparison data set 42 is determined.
- damage 60, 60' to the infrastructure element 20 through which the rail-bound vehicle 10 can pass is detected in a second damage detection step Sc2.
- FIG. 4 shows further steps applicable to the method shown in FIG. These are in turn divided into two variants, depending on the type of to detecting damage to the transport system 100. Steps Sa1, Sb1 and Sc1, and steps Sa2, Sb2 and Sc2 are equivalent to the steps shown in FIG. These steps are not discussed again in the explanation of FIG.
- a first subset of the sensors 12, 14 is operated in a first measurement state HF, NF. Furthermore, if a predetermined condition is present, the measurement state of the first subset of the sensors 12, 14 is changed from the first measurement state HF, NF to a second measurement state NF, HF in a first changeover step Sa111. Furthermore, in a first class classification step Sb11 following the first correspondence determination step Sb1, the first measurement data 30, 30' are classified into at least two classes depending on the first correspondence. Finally, the first measurement data acquisition step Sa1, the first agreement determination step Sb1 and the first class classification step Sb11 are repeated several times within a predetermined period of time.
- steps Sa1, Sb1 and Sb11 The repetition of steps Sa1, Sb1 and Sb11 is indicated by an arrow WH1.
- damage 50, 50' to the rail-bound vehicle 10 is detected in the first damage detection step Sc1 if a majority of the first measurement data 30, 30' recorded within the specified period of time has been classified into a class based on the graded damage category of a damage 50, 50' on the rail-bound vehicle 10 corresponds.
- a second subset of the sensors 16, 18 is operated in a second measurement state NF, HF. Furthermore, if a predetermined condition is present, the measurement state of the second subset of the sensors 16, 18 is changed from the second measurement state NF, HF to a first measurement state HF, NF in a second changeover step Sa211. Furthermore, in a second class classification step Sb21 optionally following the second correspondence determination step Sb2, the second measurement data 40, 40′ are classified into at least two classes depending on the second correspondence.
- the second measurement data acquisition step Sa2, the second matching determination step Sb2 and second class classification step Sb21 are repeated a number of times within a predetermined period of time.
- the repetition of steps Sa2, Sb2 and Sb21 is indicated by an arrow WH2.
- damage 60, 60' to an infrastructure element 20 that can be passed by the rail-bound vehicle 10 is detected if a majority of the second measurement data 40, 40' recorded within the predetermined period of time has been classified into a class that is based on corresponds to the graded damage category of damage 60, 60' to the rail-bound vehicle 10.
- the proposed method was explained using FIGS. 1 to 4 using the example of a train as a rail-bound vehicle and using the example of a rail as an infrastructure element. However, this is by no means to be understood as limiting.
- the method can also be applied to the transport system of a cable car, which has a gondola as a rail-bound vehicle and a cable or a guide rail of the cable as an infrastructure element.
- the method can be applied to the transport system of a tram, which has the tram as a rail-bound vehicle and the tracks of the tram as an infrastructure element.
- Further embodiments of a transport system with a rail-bound vehicle and an infrastructure element that can be passed by the rail-bound vehicle are also included in the proposed method.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021210423.1A DE102021210423B3 (de) | 2021-09-20 | 2021-09-20 | Verfahren zum Erkennen einer Beschädigung an einem Transportsystem und Steuereinrichtung dafür |
| PCT/EP2022/075916 WO2023041766A1 (de) | 2021-09-20 | 2022-09-19 | Verfahren zum erkennen einer beschädigung an einem transportsystem und steuereinrichtung dafür |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4405229A1 true EP4405229A1 (de) | 2024-07-31 |
| EP4405229B1 EP4405229B1 (de) | 2025-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22790286.3A Active EP4405229B1 (de) | 2021-09-20 | 2022-09-19 | Verfahren zum erkennen einer beschädigung an einem transportsystem und steuereinrichtung dafür |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4405229B1 (de) |
| CN (1) | CN117957158A (de) |
| DE (1) | DE102021210423B3 (de) |
| WO (1) | WO2023041766A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023200561A1 (de) * | 2023-01-25 | 2024-07-25 | Zf Friedrichshafen Ag | Verfahren zur Überwachung des Zustands einer Fahrleitung und Steuereinrichtung dafür |
| GB202404529D0 (en) * | 2024-03-28 | 2024-05-15 | Hitachi Rail Ltd | Detecting defects in railway system |
| CN119598271B (zh) * | 2025-02-10 | 2025-05-13 | 广东荣骏建设工程检测股份有限公司 | 一种建筑物损伤智能检测方法及系统 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19837476A1 (de) | 1998-08-11 | 2000-02-17 | Siemens Ag | Verfahren zum vorbeugenden Überwachen des Fahrverhaltens von Schienenfahrzeugen |
| DE19926164A1 (de) | 1999-06-09 | 2001-01-11 | Siemens Ag | Verfahren und Vorrichtung zum Überwachen eines Fahrzeugs und/oder zum Überwachen eines Fahrwegs während des betriebsmäßigen Fahrens des Fahrzeugs |
| WO2006021050A1 (en) | 2004-08-26 | 2006-03-02 | Queensland Rail | Analysis of wheel-rail noise |
| DE102008049224A1 (de) | 2008-09-27 | 2010-06-02 | Thales Defence Deutschland Gmbh | Verfahren und Vorrichtung zum Überprüfen mindestens eines Laufwerks eines auf einem Gleis fahrbaren Schienenfahrzeugs auf einen Defekt |
| DE102009020428A1 (de) * | 2008-11-19 | 2010-05-20 | Eureka Navigation Solutions Ag | Vorrichtung und Verfahren für ein Schienenfahrzeug |
| JP5525404B2 (ja) * | 2010-10-01 | 2014-06-18 | 株式会社日立製作所 | 鉄道車両の状態監視装置及び状態監視方法、並びに鉄道車両 |
| JP6657162B2 (ja) | 2017-10-31 | 2020-03-04 | 三菱重工業株式会社 | 異常検出装置、異常検出方法、プログラム |
| EP3894298A4 (de) * | 2018-12-13 | 2023-01-25 | Asiatic Innovations Pty Ltd | Transport- und schieneninfrastrukturüberwachungssystem |
-
2021
- 2021-09-20 DE DE102021210423.1A patent/DE102021210423B3/de active Active
-
2022
- 2022-09-19 WO PCT/EP2022/075916 patent/WO2023041766A1/de not_active Ceased
- 2022-09-19 CN CN202280063273.3A patent/CN117957158A/zh active Pending
- 2022-09-19 EP EP22790286.3A patent/EP4405229B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021210423B3 (de) | 2022-12-22 |
| WO2023041766A1 (de) | 2023-03-23 |
| CN117957158A (zh) | 2024-04-30 |
| EP4405229B1 (de) | 2025-08-13 |
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