METHOD AND APPARATUS FOR DETERMINING THAT A TRAIN HAS CHANGED PATHS
A path determination device is configured to receive measured heading and distance information; determine heading corrections, distance corrections, and residuals utilizing a Kalman filter assuming a selected, known path was taken; and to determine a probability that the selected, known path actuall...
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| creator | ZAHM, CHARLES, L MATHESON, WILLIAM, L |
| description | A path determination device is configured to receive measured heading and distance information; determine heading corrections, distance corrections, and residuals utilizing a Kalman filter assuming a selected, known path was taken; and to determine a probability that the selected, known path actually was taken utilizing the determined residuals. The additional information utilized by the Kalman filters provides a more robust measurement indication of whether a particular path is taken than mere measurements and correlations of path curvature.
L'invention concerne un dispositif pour déterminer un itinéraire. Le dispositif est configuré pour recevoir des informations de cap et de distance mesurées; pour déterminer des corrections de cap, des corrections de distance, et des résidus au moyen d'un filtre de Kalman, étant supposé qu'un itinéraire choisi et connu a été suivi; et pour utiliser des résidus déterminés pour établir une probabilité selon laquelle l'itinéraire choisi et connu a été effectivement suivi. Les informations complémentaires utilisées par les filtres de Kalman fournissent une indication de mesure plus robuste, concernant la question de savoir si un itinéraire particulier a été suivi, que ne le feraient de simples mesures et corrélations d'une courbe de parcours. |
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L'invention concerne un dispositif pour déterminer un itinéraire. Le dispositif est configuré pour recevoir des informations de cap et de distance mesurées; pour déterminer des corrections de cap, des corrections de distance, et des résidus au moyen d'un filtre de Kalman, étant supposé qu'un itinéraire choisi et connu a été suivi; et pour utiliser des résidus déterminés pour établir une probabilité selon laquelle l'itinéraire choisi et connu a été effectivement suivi. Les informations complémentaires utilisées par les filtres de Kalman fournissent une indication de mesure plus robuste, concernant la question de savoir si un itinéraire particulier a été suivi, que ne le feraient de simples mesures et corrélations d'une courbe de parcours.</description><edition>7</edition><language>eng ; fre</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; ENSURING THE SAFETY OF RAILWAY TRAFFIC ; GUIDING RAILWAY TRAFFIC ; GYROSCOPIC INSTRUMENTS ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; MEASURING DISTANCES, LEVELS OR BEARINGS ; NAVIGATION ; PERFORMING OPERATIONS ; PHOTOGRAMMETRY OR VIDEOGRAMMETRY ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; RAILWAYS ; SURVEYING ; TESTING ; TRANSPORTING</subject><creationdate>2001</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20010315&DB=EPODOC&CC=WO&NR=0118489A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20010315&DB=EPODOC&CC=WO&NR=0118489A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZAHM, CHARLES, L</creatorcontrib><creatorcontrib>MATHESON, WILLIAM, L</creatorcontrib><title>METHOD AND APPARATUS FOR DETERMINING THAT A TRAIN HAS CHANGED PATHS</title><description>A path determination device is configured to receive measured heading and distance information; determine heading corrections, distance corrections, and residuals utilizing a Kalman filter assuming a selected, known path was taken; and to determine a probability that the selected, known path actually was taken utilizing the determined residuals. The additional information utilized by the Kalman filters provides a more robust measurement indication of whether a particular path is taken than mere measurements and correlations of path curvature.
L'invention concerne un dispositif pour déterminer un itinéraire. Le dispositif est configuré pour recevoir des informations de cap et de distance mesurées; pour déterminer des corrections de cap, des corrections de distance, et des résidus au moyen d'un filtre de Kalman, étant supposé qu'un itinéraire choisi et connu a été suivi; et pour utiliser des résidus déterminés pour établir une probabilité selon laquelle l'itinéraire choisi et connu a été effectivement suivi. Les informations complémentaires utilisées par les filtres de Kalman fournissent une indication de mesure plus robuste, concernant la question de savoir si un itinéraire particulier a été suivi, que ne le feraient de simples mesures et corrélations d'une courbe de parcours.</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>ENSURING THE SAFETY OF RAILWAY TRAFFIC</subject><subject>GUIDING RAILWAY TRAFFIC</subject><subject>GYROSCOPIC INSTRUMENTS</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>MEASURING DISTANCES, LEVELS OR BEARINGS</subject><subject>NAVIGATION</subject><subject>PERFORMING OPERATIONS</subject><subject>PHOTOGRAMMETRY OR VIDEOGRAMMETRY</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>RAILWAYS</subject><subject>SURVEYING</subject><subject>TESTING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2001</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHD2dQ3x8HdRcPQD4oAAxyDHkNBgBTf_IAUX1xDXIF9PP08_d4UQD8cQBUeFkCBHTz8FD8dgBWcPRz93VxeFAMcQj2AeBta0xJziVF4ozc2g4OYa4uyhm1qQH59aXJCYnJqXWhIf7m9gaGhhYmHpaGhMhBIAqcgqyg</recordid><startdate>20010315</startdate><enddate>20010315</enddate><creator>ZAHM, CHARLES, L</creator><creator>MATHESON, WILLIAM, L</creator><scope>EVB</scope></search><sort><creationdate>20010315</creationdate><title>METHOD AND APPARATUS FOR DETERMINING THAT A TRAIN HAS CHANGED PATHS</title><author>ZAHM, CHARLES, L ; MATHESON, WILLIAM, L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO0118489A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2001</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>ENSURING THE SAFETY OF RAILWAY TRAFFIC</topic><topic>GUIDING RAILWAY TRAFFIC</topic><topic>GYROSCOPIC INSTRUMENTS</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>MEASURING DISTANCES, LEVELS OR BEARINGS</topic><topic>NAVIGATION</topic><topic>PERFORMING OPERATIONS</topic><topic>PHOTOGRAMMETRY OR VIDEOGRAMMETRY</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>RAILWAYS</topic><topic>SURVEYING</topic><topic>TESTING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>ZAHM, CHARLES, L</creatorcontrib><creatorcontrib>MATHESON, WILLIAM, L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ZAHM, CHARLES, L</au><au>MATHESON, WILLIAM, L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD AND APPARATUS FOR DETERMINING THAT A TRAIN HAS CHANGED PATHS</title><date>2001-03-15</date><risdate>2001</risdate><abstract>A path determination device is configured to receive measured heading and distance information; determine heading corrections, distance corrections, and residuals utilizing a Kalman filter assuming a selected, known path was taken; and to determine a probability that the selected, known path actually was taken utilizing the determined residuals. The additional information utilized by the Kalman filters provides a more robust measurement indication of whether a particular path is taken than mere measurements and correlations of path curvature.
L'invention concerne un dispositif pour déterminer un itinéraire. Le dispositif est configuré pour recevoir des informations de cap et de distance mesurées; pour déterminer des corrections de cap, des corrections de distance, et des résidus au moyen d'un filtre de Kalman, étant supposé qu'un itinéraire choisi et connu a été suivi; et pour utiliser des résidus déterminés pour établir une probabilité selon laquelle l'itinéraire choisi et connu a été effectivement suivi. Les informations complémentaires utilisées par les filtres de Kalman fournissent une indication de mesure plus robuste, concernant la question de savoir si un itinéraire particulier a été suivi, que ne le feraient de simples mesures et corrélations d'une courbe de parcours.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ENSURING THE SAFETY OF RAILWAY TRAFFIC GUIDING RAILWAY TRAFFIC GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PERFORMING OPERATIONS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION RAILWAYS SURVEYING TESTING TRANSPORTING |
| title | METHOD AND APPARATUS FOR DETERMINING THAT A TRAIN HAS CHANGED PATHS |
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