Vehicle location system
Location-representative signals are communicated to vehicles (12, 14, 16) by modifying existing traffic detector stations of the type utilizing an inductive coil (20) embedded in the roadway (22). Circuitry (44-52) is provided for generating a carrier signal modulated in accordance with a modulating...
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| creator | FABRICIUS-HANSEN, ROLF KARLSTROM, KRISTER |
| description | Location-representative signals are communicated to vehicles (12, 14, 16) by modifying existing traffic detector stations of the type utilizing an inductive coil (20) embedded in the roadway (22). Circuitry (44-52) is provided for generating a carrier signal modulated in accordance with a modulating signal representative of the location of an associated traffic detector station. A transformer (56) couples the modulated carrier signal into the existing inductive coil such that the coil establishes a magnetic field above the roadway which is modulated by the location representative signals The vehicles have inductive coils (70) mounted thereon for sensing the modulated magnetic fields. and circuitry (72, 74, 76) for extracting the location-representative signals therefrom. The location-representative signals may then be, e.g.. automatically transmitted to a central dispatching station (18). |
| format | Patent |
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Circuitry (44-52) is provided for generating a carrier signal modulated in accordance with a modulating signal representative of the location of an associated traffic detector station. A transformer (56) couples the modulated carrier signal into the existing inductive coil such that the coil establishes a magnetic field above the roadway which is modulated by the location representative signals The vehicles have inductive coils (70) mounted thereon for sensing the modulated magnetic fields. and circuitry (72, 74, 76) for extracting the location-representative signals therefrom. The location-representative signals may then be, e.g.. automatically transmitted to a central dispatching station (18).</description><language>eng ; fre ; ger</language><subject>CHECKING-DEVICES ; FARE-REGISTERING APPARATUS ; FRANKING APPARATUS ; PHYSICS ; SIGNALLING ; TICKET-ISSUING APPARATUS ; TRAFFIC CONTROL SYSTEMS</subject><creationdate>1983</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=19831221&DB=EPODOC&CC=EP&NR=0096252A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19831221&DB=EPODOC&CC=EP&NR=0096252A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FABRICIUS-HANSEN, ROLF</creatorcontrib><creatorcontrib>KARLSTROM, KRISTER</creatorcontrib><title>Vehicle location system</title><description>Location-representative signals are communicated to vehicles (12, 14, 16) by modifying existing traffic detector stations of the type utilizing an inductive coil (20) embedded in the roadway (22). Circuitry (44-52) is provided for generating a carrier signal modulated in accordance with a modulating signal representative of the location of an associated traffic detector station. A transformer (56) couples the modulated carrier signal into the existing inductive coil such that the coil establishes a magnetic field above the roadway which is modulated by the location representative signals The vehicles have inductive coils (70) mounted thereon for sensing the modulated magnetic fields. and circuitry (72, 74, 76) for extracting the location-representative signals therefrom. The location-representative signals may then be, e.g.. automatically transmitted to a central dispatching station (18).</description><subject>CHECKING-DEVICES</subject><subject>FARE-REGISTERING APPARATUS</subject><subject>FRANKING APPARATUS</subject><subject>PHYSICS</subject><subject>SIGNALLING</subject><subject>TICKET-ISSUING APPARATUS</subject><subject>TRAFFIC CONTROL SYSTEMS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1983</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAPS83ITM5JVcjJT04syczPUyiuLC5JzeVhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGuAQYGlmZGpkaORsZEKAEAkjwhlg</recordid><startdate>19831221</startdate><enddate>19831221</enddate><creator>FABRICIUS-HANSEN, ROLF</creator><creator>KARLSTROM, KRISTER</creator><scope>EVB</scope></search><sort><creationdate>19831221</creationdate><title>Vehicle location system</title><author>FABRICIUS-HANSEN, ROLF ; KARLSTROM, KRISTER</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0096252A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1983</creationdate><topic>CHECKING-DEVICES</topic><topic>FARE-REGISTERING APPARATUS</topic><topic>FRANKING APPARATUS</topic><topic>PHYSICS</topic><topic>SIGNALLING</topic><topic>TICKET-ISSUING APPARATUS</topic><topic>TRAFFIC CONTROL SYSTEMS</topic><toplevel>online_resources</toplevel><creatorcontrib>FABRICIUS-HANSEN, ROLF</creatorcontrib><creatorcontrib>KARLSTROM, KRISTER</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FABRICIUS-HANSEN, ROLF</au><au>KARLSTROM, KRISTER</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Vehicle location system</title><date>1983-12-21</date><risdate>1983</risdate><abstract>Location-representative signals are communicated to vehicles (12, 14, 16) by modifying existing traffic detector stations of the type utilizing an inductive coil (20) embedded in the roadway (22). Circuitry (44-52) is provided for generating a carrier signal modulated in accordance with a modulating signal representative of the location of an associated traffic detector station. A transformer (56) couples the modulated carrier signal into the existing inductive coil such that the coil establishes a magnetic field above the roadway which is modulated by the location representative signals The vehicles have inductive coils (70) mounted thereon for sensing the modulated magnetic fields. and circuitry (72, 74, 76) for extracting the location-representative signals therefrom. The location-representative signals may then be, e.g.. automatically transmitted to a central dispatching station (18).</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
| recordid | cdi_epo_espacenet_EP0096252A2 |
| source | esp@cenet |
| subjects | CHECKING-DEVICES FARE-REGISTERING APPARATUS FRANKING APPARATUS PHYSICS SIGNALLING TICKET-ISSUING APPARATUS TRAFFIC CONTROL SYSTEMS |
| title | Vehicle location system |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-14T12%3A28%3A34IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=FABRICIUS-HANSEN,%20ROLF&rft.date=1983-12-21&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EEP0096252A2%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |