EP3625519A1 - The monitoring of sensor data and odometry data for a rail vehicle on the basis of map data - Google Patents
The monitoring of sensor data and odometry data for a rail vehicle on the basis of map dataInfo
- Publication number
- EP3625519A1 EP3625519A1 EP18746591.9A EP18746591A EP3625519A1 EP 3625519 A1 EP3625519 A1 EP 3625519A1 EP 18746591 A EP18746591 A EP 18746591A EP 3625519 A1 EP3625519 A1 EP 3625519A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- data
- sensor data
- odometry
- map
- rail vehicle
- 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- Withdrawn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
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000012806 monitoring device Methods 0.000 claims abstract description 15
- 238000011156 evaluation Methods 0.000 claims abstract description 12
- 238000004590 computer program Methods 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 241000282941 Rangifer tarandus Species 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000528 statistical test Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/005—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 with correlation of navigation data from several sources, e.g. map or contour matching
-
- 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
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/026—Relative localisation, e.g. using odometer
Definitions
- the invention relates to a method for monitoring sensor data and / or odometry data of a rail vehicle. Moreover, the invention relates to a monitoring device. Furthermore, the invention relates to a rail vehicle.
- Rail vehicles rely on a variety of on-board sensors, such as encoders, dual radar, GPS and balise detectors, to determine their position and speed. Cameras, lidar and radar are used to detect signals, signs, barriers or walls ⁇ re relevant elements of the environment. However, these sensors can produce unreliable or anomalous information, and the common object detection methods can often produce false-positive messages.
- sensors such as encoders, dual radar, GPS and balise detectors
- Odometrie socksen are filter, play as examples Kalman filter, used to merge readings of less than ⁇ retired union sensors. To prevent abnormal sensor values, methods are used that perform statistical tests. However, not all the information about the environment and the system verwen- det, but only the determined position and speed values VELOCITY ⁇ .
- Example ⁇ as the color of a kind of billboard is known, so that different colored, but similar signs shaped ignore can be rationed. But she may experience errors even with Be Wegsichti ⁇ account the preliminary information anyway.
- DE 10 2006 007 788 A1 describes a method in which object recognition is performed by a track-bound vehicle.
- object recognition is performed by a track-bound vehicle.
- a sub ⁇ distinction is made between landmarks and obstacles.
- DE 10 2013 224 672 A1 describes a method for vehicle position detection.
- a track-side access point the position of which is known, sensed detected by means of a transmitting / receiving device.
- sensor data and / or odometry data are acquired.
- the sensor data may include, for example, image data acquired by optical sensors. They may also include sensor data collected by other types of electromagnetic waves.
- odometry data may include information about a distance traveled or a current speed or have an average speed.
- Wei ⁇ terhin map data are determined to a current route.
- the map data may be based on general geographic information about a rail line and its surroundings. The map data is used as a limiting secondary condition in the monitoring and / or evaluation of the sensor data and / or odometry data.
- a restrictive secondary condition is to be understood as an information which restricts the range of values of the sensor data and / or odometry data to a subarea of this value range.
- the combination of the map information with the sensor data or odometry data advantageously improves the accuracy of information determined on the basis of this data, such as position data, speed data or data about a traveled trajectory.
- the reliability and robustness of sensor systems and odometric systems can be improved with the method according to the invention, since extreme deviations from measured values to the correct values, which are also referred to as "outliers", can be determined and discarded.
- the monitoring device according to the invention for a rail vehicle comprises a data receiving unit for detecting sensor data and / or odometry data. Part of the monitoring device according to the invention is also a detection unit which is set up to determine map data to a ak ⁇ tual route.
- the monitoring device according to the invention also comprises an evaluation unit for using the map data as a restrictive secondary condition in the monitoring and / or evaluation of the sensor data and / or odometry data.
- the monitoring Device shares the advantages of the method according to the invention for monitoring sensor data and / or odometry data of a rail vehicle.
- the rail vehicle according to the invention has the erfindungsge ⁇ Permitted monitoring device.
- the time ⁇ estimating device shares the advantages of the monitoring device according to the invention.
- Some components of the monitoring device according to the invention can be designed predominantly in the form of software components. This applies in particular to parts of the determination unit and the evaluation unit. In principle, however, these components can also be partly realized, in particular in the case of particularly fast calculations, in the form of software-supported hardware, for example FPGAs or the like.
- the required interfaces for example, if it is only about a transfer of data from other software components, be designed as a software interface parts. However, they can also be configured as hardware-based interfaces, which are controlled by suitable software.
- a largely software-based implementation has the advantage that already existing in a rail vehicle computer systems can be retrofitted in a simple way by a software update to work on the inventive way.
- the object is also achieved by a corresponding computer program product with a computer program, which is directly in a storage device ei ⁇ nes such a computer system can be loaded, ⁇ lead with Programmabschnit ⁇ th order for For all steps of the inventive method when the computer program in the computer system is performed.
- Such a computer program product in addition to the computer ⁇ program optionally additional components, such as a documentation and / or additional components, also Hardware components, such as hardware keys (dongles, etc.) for using the software include.
- a computer-readable medium for example a memory stick, a hard disk or another portable or permanently installed data carrier can be used, on which the computer program readable and executable by a computer unit are stored.
- the computer unit may be for example a purpose or more cooperating micropro ⁇ processors or the like.
- Used odometry data For example, it is thus advantageously possible to determine a permitted value range for an orientation or direction of movement of the rail vehicle. If measured values are outside this range, they can be detected as faulty and discarded.
- a Kalman filter is used in the Processing of the sensor data and / or Odometrie schemes used so that the sensor data and / or Odometrie schemes meet the restrictive constraint. That is, the Kalman filter is set so that detected state data such as the direction of travel or a distance traveled does not violate the determined restrictions.
- a rail nenindis be based on the rail curve Sensorda ⁇ th and / or odometry, which indicate incorrect direction of travel discarded. That is, soft data, which relate to the direction of movement or a lateral acceleration, from a specified range of the rail track range, so these data are detected as defective and discarded.
- the sensor data for object recognition are evaluated and the detected objects are compared with the map data in such a way that objects drawn in the map at a current position or in a current location area recognized object to be compared.
- a position of a drawn object in the map data can be used to restrict an image area or scanning area to be selected for object detection to an area around the position of the marked object.
- the search time for an object to be detected can be reduced within the scope of object recognition.
- FIG. 1 shows a flowchart which illustrates a method for monitoring sensor data and / or odometry data of a rail vehicle according to an embodiment of the invention
- FIG 2 is a block diagram veran ⁇ illustrating a monitoring device according to an embodiment of the invention
- FIG. 3 shows a block diagram illustrating a rail vehicle with egg ⁇ ner monitoring device according to an embodiment of the invention.
- step 1.1 sensor data SD is first received by one or more sensor units.
- step l.II position data PD is additionally received via a receiving unit for receiving satellite navigation signals.
- the position data PD provide information about the current position or a current location area of the rail vehicle.
- step l.III based on the position data PD, map data KD is determined, which Information about the course of the rail as well as possibly existing objects ⁇ present in the area of the determined position data PD.
- step 1.IV the map data KD is then compared with the sensor data SD.
- the sensor data SD provides information about an orientation of the rail vehicle, then this can be compared with the direction of the rail guide in the map data KD.
- the process proceeds to step IV and the sensor data SD is released for further processing was determined in step 1.
- IV that the two data sets differ, which is marked in Figure 1 with "n”, it is moved to the step l.VI, in which a fault avoidance is issued and rejected the sensor data SD become .
- FIG 2 a block diagram is shown, which according to one embodiment of the ER- illustrates a surveil ⁇ monitoring device 20 invention.
- the monitoring device 20 includes fully, a sensor data receiving interface 21, with the Sen ⁇ sorrtz SD of one or more sensor units are received.
- the sensor data SD are transmitted to an evaluation unit 23.
- General map data AKD and Positionsinformatio ⁇ NEN PD be a second input interface 24 is received and niege to a determination unit 22 derives ⁇ which determines based on this data AKD, PD site-specific map data KD, so the map data associated with a current position.
- the map data KD are then also transmitted to the evaluation unit 23.
- the evaluation unit 23 subsequently performs an adjustment between the map data KD and the sensor data SD and outputs result data ED, which provide information about the quality of the sensor data SD.
- result data ED provide information about the quality of the sensor data SD.
- the sensor data SD is output via an output interface 25. If the sensor data SD is classified as faulty, an error message ED is issued. ben, which notifies that the tested sensor data SD are faulty.
- a rail vehicle 30 is schematically illustrated according to an embodiment of the invention.
- Rail vehicle 30 includes a sensor unit 31, for example ⁇ an encoder unit, with the basis of the rotational ⁇ frequency of the wheels of the rail vehicle 30 whose speed and the distance traveled is determined.
- the sensor data SD are transmitted to a monitoring unit 20.
- the monitoring unit 20 checks the sensor data SD to in connection with Figures 1 and 2 illustrate ⁇ light manner.
- the monitoring unit 20 also receives position data PD via an input interface 32.
- the sensor data SD and possibly also an error message ED are output to a central control device 33, to which, for example, display units for the operating personnel as well as automated control units, such as automated braking units connected are.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Navigation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017212937 | 2017-07-27 | ||
PCT/EP2018/068476 WO2019020349A1 (en) | 2017-07-27 | 2018-07-09 | The monitoring of sensor data and odometry data for a rail vehicle on the basis of map data |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3625519A1 true EP3625519A1 (en) | 2020-03-25 |
Family
ID=63041965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18746591.9A Withdrawn EP3625519A1 (en) | 2017-07-27 | 2018-07-09 | The monitoring of sensor data and odometry data for a rail vehicle on the basis of map data |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3625519A1 (en) |
WO (1) | WO2019020349A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111638486B (en) * | 2019-03-01 | 2024-08-13 | 阿里巴巴集团控股有限公司 | Positioning method, system and device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6826478B2 (en) * | 2002-04-12 | 2004-11-30 | Ensco, Inc. | Inertial navigation system for mobile objects with constraints |
DE102006007788A1 (en) | 2006-02-20 | 2007-08-30 | Siemens Ag | Computer-assisted driverless railway train monitoring system, to show its travel behavior, has train-mounted sensors and track position markers for position data to be compared with a stored model |
US8296065B2 (en) * | 2009-06-08 | 2012-10-23 | Ansaldo Sts Usa, Inc. | System and method for vitally determining position and position uncertainty of a railroad vehicle employing diverse sensors including a global positioning system sensor |
NO3012398T3 (en) | 2013-09-30 | 2018-04-28 | ||
DE102013224672A1 (en) | 2013-12-02 | 2015-06-03 | Siemens Aktiengesellschaft | Method and device for vehicle-side position data acquisition in a rail vehicle |
-
2018
- 2018-07-09 EP EP18746591.9A patent/EP3625519A1/en not_active Withdrawn
- 2018-07-09 WO PCT/EP2018/068476 patent/WO2019020349A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2019020349A1 (en) | 2019-01-31 |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PALMER, ANDREW Inventor name: KETABDAR, HAMED Inventor name: NOURANI-VATANI, NAVID Inventor name: CALDER, STEVEN ALEXANDER |
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DAV | Request for validation of the european patent (deleted) | ||
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18D | Application deemed to be withdrawn |
Effective date: 20200728 |