EP1563314A1 - System for locaton and operation management of mobile vehicle using phase difference of arrival - Google Patents
System for locaton and operation management of mobile vehicle using phase difference of arrivalInfo
- Publication number
- EP1563314A1 EP1563314A1 EP02793564A EP02793564A EP1563314A1 EP 1563314 A1 EP1563314 A1 EP 1563314A1 EP 02793564 A EP02793564 A EP 02793564A EP 02793564 A EP02793564 A EP 02793564A EP 1563314 A1 EP1563314 A1 EP 1563314A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- moving vehicle
- radio
- signal
- vehicle
- wayside
- 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- Withdrawn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
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- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 23
- 230000014509 gene expression Effects 0.000 description 14
- 101100098479 Caenorhabditis elegans glp-4 gene Proteins 0.000 description 13
- 201000003412 Wolcott-Rallison syndrome Diseases 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 101100205318 Homo sapiens NARS1 gene Proteins 0.000 description 3
- 101100205323 Schizosaccharomyces pombe (strain 972 / ATCC 24843) nrs1 gene Proteins 0.000 description 2
- 101100205313 Caenorhabditis elegans nars-1 gene Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- VJYFKVYYMZPMAB-UHFFFAOYSA-N ethoprophos Chemical compound CCCSP(=O)(OCC)SCCC VJYFKVYYMZPMAB-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/50—Determining position whereby the position solution is constrained to lie upon a particular curve or surface, e.g. for locomotives on railway tracks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0007—Measures or means for preventing or attenuating collisions
- B60L3/0015—Prevention of collisions
-
- 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
- B61L15/0018—Communication with or on the vehicle or train
- B61L15/0027—Radio-based, e.g. using GSM-R
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/30—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/70—Interactions with external data bases, e.g. traffic centres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Definitions
- the present invention relates to a system for tracking a near position of a moving vehicle.
- the invention relates to a system for location and operation management of a moving vehicle using phase difference of arrival, which includes wayside radio sets (RSs) installed on the ground in such a manner as to be spaced apart from each other at certain intervals, a vehicle radio set (VRS) installed in a moving vehicle and a station radio set (SRS) installed at a control station so as to locate the moving vehicle using a phase difference between a signal transmitted from the moving vehicle and a reference signal of the wayside radio sets, thereby .tracking the position of a train more accurately when applied to railroad vehicles.
- RSs wayside radio sets
- VRS vehicle radio set
- SRS station radio set
- GSP Global Positioning System
- TOA Time of Arrival
- TDOA Time Difference of Arrival
- AOA Angle of Arrival
- the GPS is applicable to a system having a wider movement range because it can track the position of a wireless caller with a reception-dedicated terminal anywhere there is no obstacle.
- a GPS can hardly be applied to a system like lightweight electric railway that runs downtown or underground.
- TOA and TDOA are currently used. Even in case of TOA and TDOA, however, it is difficult to synchronize time of each fixed station, resulting in generation of error.
- an object of the present invention is to provide a system for location and operation management of a moving vehicle using phase difference of arrival, which tracks the position of a moving vehicle that has transmitted a position signal based on a previously constructed route database using phase differences between radio stations installed along the route and the moving vehicle running along the route and performs operation management of the moving vehicle accordingly.
- a system for location of a moving vehicle running along a specific route using phase difference of arrival comprising: a vehicle radio set mounted on the moving vehicle and adapted to send out a specific radio signal of the moving vehicle; a plurality of wayside radio sets installed at certain intervals along the route and adapted to receive the radio signal from the vehicle radio set; a station radio set adapted to receive the radio signal of the moving vehicle and identification information of two corresponding ones of the plurality of wayside radio sets from the two corresponding wayside radio sets located at both sides in such a manner as to be opposite to each other with respect to a running spot which the moving vehicle is passing; and a position tracking section adapted to receive the radio signal of the moving vehicle and the identification information ' of the two corresponding wayside radio sets from the station radio set through a wired or radio communication network, and search a route database having data previously stored therein to calculate produce position information of the moving vehicle from the radio signal of the moving vehicle and the identification information of the two corresponding wayside radio sets
- a system for tracking the position of a moving vehicle running along a specific route and managing the operation of the moving vehicle using phase difference of arrival comprising: a vehicle radio set mounted on the moving vehicle and adapted to send out a specific radio signal of the moving vehicle; a plurality of wayside radio sets installed at certain intervals along the route and adapted to receive the radio signal from the vehicle radio set; a station radio set adapted to receive the radio signal of the moving vehicle and identification information of two corresponding ones of the plurality of wayside radio sets from the two corresponding wayside radio sets located at both sides in such a manner as to be opposite to each other with respect to a running spot which the moving vehicle is passing; a position tracking section adapted to receive the radio signal of the moving vehicle and the identification information of the two corresponding wayside radio sets from the station radio set through a wired or radio communication network, and search a route database having data previously stored therein to calculate produce position information of the moving vehicle from the radio signal of the moving vehicle and the identification information of
- FIG. 1 is a schematic diagram showing the entire configuration of a moving vehicle location system using phase difference of arrival according to the present invention
- FIG. 2 is a flow chart showing the operation process of the moving vehicle location system according to the present invention.
- FIG. 3 is a block diagram showing the inner configuration of the position tracking unit shown in FIG. 1 ;
- FIG. 4 is a conceptual diagram for explaining a method of estimating the position of an actual moving vehicle using a lineal distance obtained by using phase difference of arrival and a route database;
- FIG. 5 is a diagrammatic view for explaining a method of determining the position of a train in a straight section adjacent to RS 4;
- FIG. 6 is a diagram for explaining a method of estimating an actual distance when the train is located in a curved section
- FIG. 7 is a flow chart showing a procedure of estimating the actual distance in FIG. 6.
- FIG. 8 is a conceptual diagram showing phase difference of arrival between WRS 4 and NRSs 2 and 3 shown in FIG. 1.
- FIG. 1 is a schematic diagram showing the entire configuration of a moving vehicle location system using phase difference of arrival according to the present invention.
- the moving vehicle location system using phase difference of arrival of the invention includes vehicle radio sets VRS1 3 and NRS 2 2 that are mounted on a moving vehicle and functions to send out a specific radio signal of the moving vehicle; wayside radio sets (WRS) 1, 4 and 5 that are installed at certain intervals along a route and serve to receive the radio signal from the NRS1 3 and NRS2 2 or to transmit a control command signal to the moving vehicle; a station radio set (SRS) 6 that acts to receive the radio signal of the moving vehicle and identification information of two corresponding ones of the wayside radio sets from the two corresponding wayside radio sets located at both sides in such a manner as to be opposite to each other with respect to a running spot the moving vehicle is passing; and a position tracking unit 8 that functions to receive the radio signal of the moving vehicle and the identification information of the two corresponding wayside radio sets from the station radio sets (SRS) 6 through a radio communication network 7 and to search a route database 9 having data previously stored therein to calculate position information of the moving vehicle from the radio
- a system for location and operation management of the moving vehicle using phase difference of arrival of the invention includes vehicle radio sets VRS1 3 and NRS 2 2 that are mounted on a moving vehicle and functions to send out a specific radio signal of the moving vehicle; wayside radio sets (WRS) 1, 4 and 5 that are installed at certain intervals along a route and serve to receive the radio signal from the NRS 1 3 and NRS2 2 or to transmit a control command signal to the moving vehicle; a station radio set (SRS) 6 that acts to receive the radio signal of the moving vehicle and identification information of two corresponding ones of the wayside radio sets from the two corresponding wayside radio sets located at both sides in such a manner as to be opposite to each other with respect to a running spot the moving vehicle is passing; a position tracking unit 8 that functions to receive the radio signal of the moving vehicle and the identification information of the two corresponding wayside radio sets from the station radio sets (SRS) 6 through a radio communication network 7 and to search a route database 9 having data previously stored therein to calculate position information of the moving vehicle from
- the communication network may include TDMA, CDMA, FDMA networks and the like.
- the communication network is not limited to radio mobile communication networks, but may be applied to wired communication networks and Internet network.
- the vehicle radio sets are respectively disposed set at the front and rear of the moving vehicle.
- FIG. 2 is a flow chart showing the operation process of the moving vehicle location system according to the present invention.
- step S2 When the NRS1 3 or VRS2 2 attached to the moving vehicle sends out a radio wave signal (SI), it is determined whether or not WRS 1 or 4 is placed adjacent to the SRS 6 (S2). If it is determined at step S2 that the WRS 1 or 4 is not placed adjacent to the SRS 6, the program proceeds to step S3 at which the VRSl 3 or VRS2 2 transmits the radio signal to the SRS 6 through the WRS adjacent to the VRSl 3 or VRS2 2 and the step S2 is performed repeatedly. That is, the WRS 1 or 4 located on the ground (at a side of a railroad track) receive the radio signal from the VRSl 3 or VRS2 2.
- step S2 If, on the other hand, it is determined at step S2 that the WRS 1 or 4 is placed adjacent to the SRS 6, the program proceeds to step S4 where the WRS 1 or 4 transmits the received radio signal to the SRS 6. Subsequently, at step S5, the lineal distance between the WRS and VRS is measured using phase difference of arrival with respect to the radio signal received by the SRS 6, and then the program proceeds to step S6 where the accurate position of the VRS is determined from the measured value using the route database. Then, at step S7, a control command signal is sent to the moving vehicle (that is, a train) using the positions of other trains and information of the operation database.
- the moving vehicle that is, a train
- FIG. 3 is a block diagram showing the inner configuration of the position tracking unit shown in FIG. 1.
- the position tracking unit 8 includes a low-noise amplifier 102 for amplifying a signal received through an antenna 101 from the SRS 6, the first filter 103, a frequency down converter 104, the second filter 105, a phase controller 106, a reference signal generator 107, a phase comparator 108, a phase angle calculator 109, a lineal distance calculator 110, a route database inquiry unit 111 and an actual position calculator 112.
- the radio signal received through the antenna 101 is supplied to the low- noise amplifier 102 which amplifies the received radio signal to an appropriate level, and then supplies the amplified radio signal to the first filter 103 which filters the amplified signal to select a signal of desired waveform. Then, the filtered signal is supplied to the frequency down converter 104 which converts a signal having an input frequency of hundreds MHz or GHz into a signal of about 1.5MHz through several processing steps.
- the aim of converting the frequency of an input signal into 1.5MHz or so is to make the propagation distance per cycle of the signal be similar to the distance (200m) between the two WRSs 1 and 4 located at both sides of the moving vehicle.
- the propagation distance per cycle is much shorter than the distance between the two WRSs 1 and 4, even when a phase is measured, the location of the moving vehicle cannot be carried out because many phases exists within a section.
- the propagation distance per cycle is longer than the distance between the two WRSs 1 and 4
- phase variation per unit distance becomes small, resulting in an increase in error. Accordingly, it is preferable that the propagation distance per cycle is identical to the distance between the two WRSs 1 and 4.
- frequency is preferably adjusted such that the propagation distance per cycle is slightly longer than the distance between the two WRSs 1 and 4.
- the down-converted signal of a low frequency is supplied to the second filter 105 which filters it for application to the phase comparator 108 which, in turn, compares a phase of the filtered signal with that of a reference signal having the same frequency, that is generated by the reference signal generator 107 and phase-controlled by the phase controller 106. Then, the phase angle calculator 109 calculates a phase of the input signal according to the compared result.
- the lineal distance calculator 110 calculates the lineal distances between the WRSs 1 and 4 and a point at which the moving vehicle is currently located using the phase difference between the input signal and the reference signal. Then, the route database inquiry unit 111 inquires the radius of curvature of the route and gradient information stored in the route database 9 and the lineal distances. The actual position calculator 112 obtains the actual position of the moving vehicle using the inquired information. According to the aforementioned method, the positions of all moving vehicles on the route are grasped and the next operation instruction is transferred to each of the moving vehicles using operation information stored in the moving vehicle operation database.
- a railroad track is constructed to have both straight and curved courses, the estimation of the actual distance by which the moving vehicle travels from the reference point requires approximation.
- control of trains especially, control of the interval between trains is based on difference positions according to the railroad track. Accordingly, the position of the moving vehicle is obtained by calculating the lineal and curved distances between the moving vehicle and the reference point. The linear distance between the WRSl 4 and VRSl 3 is measured using the phase difference of arrival.
- a method for converting the lineal distance into the actual driving distance is classified into a method that constructs a database for a phase difference previously obtained using the lineal distance measured by using a phase difference and the route database, and the distance according to the phase difference and then performs conversion of data stored in the constructed database, and a method that divides the route into sections according to the characteristics of the route in advance, determines a section corresponding to the measured lineal distance and obtains the driving distance using a relation expression based on the determined section.
- the former method has a problem in that since if requires a massive database, its processing speed also is relatively slow. Accordingly, the present invention employs the latter method that previously divides the route into sections according to the characteristics of the route to locate a train based on the divided sections.
- FIG. 4 is a conceptual diagram for explaining a method of estimating the position of an actual moving vehicle using a lineal distance obtained by using phase difference of arrival and a route database.
- the route is appropriately divided into straight and curved sections. If the route is divided into too many sections, the quantity of database becomes massive. Thus, the division interval of the route should be set within a range satisfying a desired error. In the case where a curved section has different radiuses of curvature, the route is divided into appropriate sections according to the radiuses of curvature.
- FIG. 5 is a diagrammatic view for explaining a method of determining the position of a train in a straight section adjacent to WRS 4.
- the method of locating a train in a straight section adjacent to the WRS 4 obtains the actual driving distance of the train through the
- FIG. 7 is a flow chart showing a procedure of estimating the actual distance in FIG. 6.
- the lineal distance B between WRSl 4 and VRS2 2 is measured using phase difference of arrival (Sl l), and the section where the VRS2 2 is located is found using the measured lineal distance B (S12). Then, the actual driving distance is estimated using the relationship between the phase difference and driving distance in that section.
- the angle ⁇ l of the triangle composed of the distance A between the WRS 4 and the start point of the section S6, the distance C between the WRS 4 and the center of the radius of curvature and the radius of curvature R, is obtained using the following expression 2 (SI 3).
- a 2 C 2 + R 2 - 2CRCOS ⁇ I
- the angle ⁇ 2 of the triangle composed of the distance B between the WRSl 4 and VRS2 2, the distance C between the WRSl 4 and the center of the radius of curvature and the radius of curvature R, is obtained through the following expression 3 (SI 4).
- the angle ⁇ between the start point of the section S6 and the VRS2 2 can be obtained when the distance A between the WRSl 4 and the start point of the section S6, the distance B between the WRSl 4 and the VRS2 2, the distance C between the WRSl 4 and the center of the radius of curvature and the radius of curvature R are known.
- A, C and R are values determined from the route database and B is a value measured using phase difference of arrival.
- the curved distance d that the moving vehicle has actually moved can be obtained by substituting the angle ⁇ into the following expression 6 (SI 6).
- FIG. 8 is a conceptual diagram showing phase difference of arrival between WRS 4 and VRSs 2 and 3 shown in FIG. 1.
- the VRSl 3 and VRS2 2 show phase differences of about 90° and 180°, respectively. These phase differences vary with the position of the train. For example, when the distance between the WRSs and the train is 200m and intermediate frequency is 1.5MHz, phase difference of approximately 1.8° per unit distance is generated.
- the present invention can grasp the current position of a moving vehicle running on a specific route using phase differences of arrival between WRSs installed around the route and VRSs attached to the moving vehicle without using the conventional GPS.
- the SRS of the present invention can calculate position coordinates of the moving vehicle that has transmitted a position signal from a route database having data previously stored therein using signals of the vehicle received from the multiple WRSs through a radio communication network and the phase differences between the vehicle and the WRSs adjacent to the vehicle.
- a vehicle running route is constructed of a combination of both a straight section and curved sections having various radiuses of curvature.
- the distances between the VRS and neighboring two WRSs is divided into multiple sections based on the straight and curved sections, the section in which the vehicle is located is found using the lineal distance obtained from the phase differences between the WRSs and VRS, and the accurate position of the vehicle is calculated using the relationship between the phase differences and the distance in that section.
- the measurement of accurate position of the moving vehicle according to the present invention is a key technique required for constructing an unmanned railroad operation system. With this technique, intervals between trains running on the same track can be optimally controlled. Accordingly, railway transport efficiency can be increased and operation interval can be more safely maintained, thereby improving reliability in railroad service.
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR2002066335 | 2002-10-30 | ||
KR10-2002-0066335A KR100483801B1 (en) | 2002-10-30 | 2002-10-30 | System for mobile vehicle position tracking and moving management using phase of arrival |
PCT/KR2002/002487 WO2004040327A1 (en) | 2002-10-30 | 2002-12-30 | System for locaton and operation management of mobile vehicle using phase difference of arrival |
Publications (2)
Publication Number | Publication Date |
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EP1563314A1 true EP1563314A1 (en) | 2005-08-17 |
EP1563314A4 EP1563314A4 (en) | 2010-06-16 |
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Application Number | Title | Priority Date | Filing Date |
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EP02793564A Withdrawn EP1563314A4 (en) | 2002-10-30 | 2002-12-30 | System for locaton and operation management of mobile vehicle using phase difference of arrival |
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EP (1) | EP1563314A4 (en) |
KR (1) | KR100483801B1 (en) |
WO (1) | WO2004040327A1 (en) |
Families Citing this family (12)
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CN1968873A (en) | 2004-06-25 | 2007-05-23 | 日本电气株式会社 | Article position management system, article position management method, terminal device, server, and article position management program |
KR100610656B1 (en) * | 2004-07-09 | 2006-08-10 | 한국철도기술연구원 | Position location system of the train on the railway by using the phase difference relation |
KR100694512B1 (en) * | 2004-12-24 | 2007-03-13 | 한국철도기술연구원 | Method for correcting train positioning error in wayside radio station |
KR100773073B1 (en) * | 2006-08-02 | 2007-11-02 | 삼성전자주식회사 | Method and system for tile binning using half-plane edge function |
EP2294439B1 (en) | 2008-05-26 | 2019-02-27 | Commonwealth Scientific and Industrial Research Organisation | Measurement of time of arrival |
EP2307902B1 (en) | 2008-07-04 | 2013-09-25 | Commonwealth Scientific and Industrial Research Organisation | Wireless localisation system |
AU2009251097B2 (en) * | 2008-12-22 | 2014-11-27 | Technological Resources Pty. Limited | Distributed Power System |
KR101419846B1 (en) * | 2009-08-12 | 2014-07-17 | 이흥수 | Location system and method using phase-difference detection |
JP5940789B2 (en) | 2011-09-30 | 2016-06-29 | 日本信号株式会社 | Train control system |
KR101355672B1 (en) * | 2011-12-30 | 2014-01-28 | 주식회사 포스코아이씨티 | Apparatus for Controlling Train and Meathod for the same |
SE542199C2 (en) * | 2018-05-24 | 2020-03-10 | Icomera Ab | System and apparatus for determining the position of rail-bound vehicles on a railway system |
DE102020201915A1 (en) | 2020-02-17 | 2021-08-19 | Siemens Mobility GmbH | Rail vehicle and arrangement with rail vehicle |
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JPS6466581A (en) * | 1987-09-08 | 1989-03-13 | Susumu Sakuma | Guarding method performed through transmission and reception of emergency signal |
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2002
- 2002-10-30 KR KR10-2002-0066335A patent/KR100483801B1/en not_active IP Right Cessation
- 2002-12-30 WO PCT/KR2002/002487 patent/WO2004040327A1/en not_active Application Discontinuation
- 2002-12-30 EP EP02793564A patent/EP1563314A4/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
WO2004040327A1 (en) | 2004-05-13 |
KR20040037730A (en) | 2004-05-07 |
KR100483801B1 (en) | 2005-04-20 |
EP1563314A4 (en) | 2010-06-16 |
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