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US3676669A - Apparatus for the centralized control of the operation of trains - Google Patents

Apparatus for the centralized control of the operation of trains Download PDF

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Publication number
US3676669A
US3676669A US37103A US3676669DA US3676669A US 3676669 A US3676669 A US 3676669A US 37103 A US37103 A US 37103A US 3676669D A US3676669D A US 3676669DA US 3676669 A US3676669 A US 3676669A
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US
United States
Prior art keywords
train
zone
central station
receiver
coded
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.)
Expired - Lifetime
Application number
US37103A
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English (en)
Inventor
Christian Jauquet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Umicore NV SA
Original Assignee
ACEC SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ACEC SA filed Critical ACEC SA
Application granted granted Critical
Publication of US3676669A publication Critical patent/US3676669A/en
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Classifications

    • 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
    • B61L25/06—Indicating or recording the setting of track apparatus, e.g. of points, of signals
    • 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
    • B61L25/04—Indicating or recording train identities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/16—Continuous control along the route
    • B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
    • B61L3/225—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation using separate conductors along the route
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
    • B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
    • B61L7/08—Circuitry

Definitions

  • Such data is stored in a memory portion of the cen- 06L. 5, 1966 Belgium ..34l79 Station and serves to Send the coded messages to the train based on that data, on the obstacles lying ahead of the train 52 US. Cl ..246/182 R, 246/63 c, 246/187 B and the distance "availed by the at the time 0f 51 Int.
  • This invention relates to an apparatus for the centralized control of the operation of trains.
  • the object of the present invention is to furnish, from a central station, operating instructions to trains travelling on a railway network.
  • the instructions worked out by the central station are functions of obstacles to be met along the railway network such as speed limits, signals, etc. and of data supplied by the train itself concerning its position, its speed, its own characteristics, etc.
  • the invention has numerous advantages as compared to known techniques.
  • Apparatus are known in which the railway network is divided into zones each dependent on a central station which establishes a bilateral communication with the trains circulating in the zone under concern through a cable defining a loop arranged between the rails and travelled by carrier currents.
  • Such a loop has marking points in the form of evenly spaced crossings dividing the zone into sections and permitting to a particular train to know in which section it is located.
  • the central station sends out messages called searching messages intended for trains located in predetermined sections and those effectively in such predetermined sections answer by a message called an occupation message containing data that is stored at the central station in a memory the content of which is analyzed and used to establish the operating instructions which are communicated to the trains during the next searching cycle.
  • One of the major disadvantages of the above system is that the operating instructions which are communicated to a train at a predetermined time only take into account prior data which no longer corresponds to the exact location of the train at that instant.
  • the central station sends out operating instructions not only to trains located in such or such section of the zone under concern, but to all trains located in the zone, each of the trains taking into consideration only the operating instructions that are accompanied by a coded reference given to it by the central station when'it enters the zone, these operating instructions being established by the central station while taking into account the exact location of the train when the operating instructions are given.
  • the progression of each train in a zone is followed step by step by the central station and the operating instructions are transmitted to it as a function of the conditions existing at the corresponding moment.
  • the apparatus according to the invention which permits a bilateral communication between the central station controlling a zone and the trains circulating in said zone, and wherein the central station cyclically sends out coded messages to each train, is mainly characterized in that each train entering the zone is given a coded name by the central station, which name is held, in principle, by the train during its full travel in the zone, and permits the train to receive and consider only the messages which are intended to it.
  • the train transmits to its central station data indicating its speed, its zone of origin, the distance travelled in the zone under concern and other characteristics.
  • Such data is stored in a memory portion of the central station which is allotted to the train under concern and the central station sends out operating instructions to the train based on such data, on obstacles located ahead of the train and on the true distance travelled by the train at the time of sending the operating instructions.
  • the central station calculates at all times such true distance by means of the distance stored in the memory portion, the speed of the train and the time interval elapsed between the storage of the distance in the above-mentioned memory portion and the transmission of the operating instructions.
  • the apparatus in accordance with the invention which is to be located in a train and in bilateral communication with a central station controlling a zone, comprises a receiver and a transmitter connected respectively to a decoder and to an encoder, and equipped with antennas coupled to a cable forming a loop which is located along the railway network and defines the zone.
  • the loop which is fed by the central station has marking points in the form of crossings and the counting of such crossings by the receiver gives a measure of the distance travelled by the train.
  • the apparatus in accordance with the invention is characterized in that it comprises a series of registers including one or plural bistable circuits for storing the informations received by the decoder, transfer circuits connected to such registers, memory circuits connected to such transfer circuits, logic circuits controlling the transfer circuits, comparator circuits for comparing the content of at least a part of the registers with the informations contained in corresponding memory circuits pertaining to the train, or with informations worked out in the train, the comparator circuits determining the state of the logic circuits and allowing or not the acceptation of the messages received and the sending of data to the central station, which data permit to such central station to work out the working instructions to be transmitted to the train.
  • FIG. 1 illustrates schematically a zone Z of a railway network controlled by a central station, such zone being adjacent to other zones Z Z and Z and
  • FIG. 2 illustrates schematically an apparatus installed in a train for controlling the train.
  • FIG. 1 illustrates schematically a zone Z of a railway network controlled by a central station (not shown), such zone Z being adjacent to other zones Z,, Z and Z from which trains may come to enter zone Z
  • the zones 2,, Z and Z may or may not be controlled by a central station similar to the one of zone Z If, for instance, a train comes from zone Z, to enter into zone Z such train is said to be placed in a state of availability caused, for example, by a silent gap, that is by a distance between two zones wherein no communication means exist, by a detecting device or by any other means.
  • the train in the state of availability knows the coded designation of the zone from which it comes either by means of messages received by the central station associated with such zone or by means of a detecting device located at the exit of the zone.
  • the central station associated with the zone Z is warned of the entry of a train therein coming from the zone 2,, for example, by a pedal or by an answer received from the train following a message hereinafter called a tentative" message which is periodically transmitted during each cycle of messages to all trains in the state of availability which are located in a predetermined section in the neighborhood of the entry of the zone, or else following a message received from the central station associated with zone Z from which the train originates.
  • FIG. 2 illustrates schematically an embodiment of an apparatus for providing operating instructions to a train, such apparatus being located aboard a train which is about to enter into zone Z
  • the apparatus comprises a receiver 1 connected to an antenna 2 coupled to a cable 3 which is fed by the signal emitted by a central station 4 controlling zone Z
  • the passage of the train in the above-mentioned silent gap preceding zone Z causes a level detector 5 connected to receiver 1 and consisting of a bistable circuit to be placed in a state 0.
  • Such causes a register 6 connected to level detector 5 to be also reset to 0.
  • register 6 The function of register 6 was to count the crossings of the cable so as to provide an indication of the distance travelled by the train in the preceding zone. The train is then said to be in the state of availability.
  • the output of receiver 1 is connected to a decoder 7 the function of which is to energize, in accordance with the content of the messages received, a number of registers comprising one or plural bistable circuits.
  • a bistable circuit 8 is set to 0 when the message received is a tentative message or a message hereinafter called naming message, that is a message containing a coded indication or a name given to the train by the central station.
  • the tentative message and the naming message are combined in a single message.
  • the bistable circuit 8 will, as it will be seen later on, take the state 1 when the message received is a hereinafter called instruction" message, that is a message containing operating instructions for the train.
  • the central station includes, apart from the coded name given to the train, an indication of the zone of origin of the train, an indication of the zone in which the train is now travelling and the distance travelled in the zone, such distance being of course null.
  • a bistable circuit 10 which is set to by the level detector 5 at the passage of the train in the silent gap as mentioned above.
  • the state 0 of both bistable circuits 8 and 10 is inversed by inverters l1 and 12 connected to the output of the bistable circuits 8 and 10.
  • the output of inverters 11 and 12 are connected to a logic circuit 13 of the AND type.
  • a comparator 15 When the indication of the zone stored in register 14 is identical to the one contained in the message received from the central station and stored in a register 44, a comparator 15 provides a digital output 1 which is also applied to logic circuit 13.
  • the indication of the zone now travelled by the train is stored in registor l6 and will be transferred, upon entering of the train in the zone following zone 2 into register 14 under control of transfer circuit 45 when the level detector 5 will be set to 0 as mentioned previously.
  • the distance travelled in zone Z is measured by a crossing detector 18 which operates register 6.
  • the indication of the distance contained in the message of the central station received by decoder 7 is introduced into a register 17.
  • the output of register 17 is compared with the output of register 6 in a comparator 19 the output of which takes the state 1 when the indication of registers 6 and 17 are identical, or nearly identical within a predetermined limit.
  • the output of comparator 19 is applied to logic circuit 13 whose inputs are now all in state 1. Consequently, the output of logic circuit 13 also takes state 1.
  • One output of logic circuit 13 is applied to the first input of bistable circuit 10 the second input of which is connected to level detector 5 which is now in state 1 due to the entering of the train in zone Z
  • the above sets the output of bistable circuit 10 in state 1 and the train is then put in a state hereinafter called reception state.
  • the coded name given to the train by the central station has been stored in a register 9 and the first output of logic circuit 13 energizes a transfer circuit 20 which causes the transfer of the coded name into a memory 21 in which such coded name will be stored during the full travel of the train in the zone Z.
  • the next message that the train will receive will be an instruction message which will put bistable circuit 8 in a state 1.
  • the train sends to the central station by means of the transmitter which will be disclosed later on, a message hereinafter called acknowledgement message pertaining to the difference between the true distance travelled by the train and the one registered in the central station as provided by comparator 19, to the speed of the train measured by a speed detector circuit 36, and to the type of train (from the point of view of braking capacity, etc.) stored in a register 34.
  • the above message is sent to the central station under the control of the second output of logic circuit 13 which is applied to logic circuit 43 as it will be explained later.
  • the above data will permit the central station to determine the operating instructions to be sent to the train relating to the maximum speed permitted, to the distance from the above-mentioned obstacles along the railway network, to the speed of the train upon encountering such obstacles, which are stored by decoder 7 into respective transient registers 23, 24 and 25.
  • Such data is intended to be introduced into memories 26, 27 and 28 respectively by transfer circuits 29, 30 and 31 when the input of such transfer circuits are placed in state 1 by a logic circuit 32 of the AND type the input of which are connected to the output of circuits 8, 10, 15, 22, 19 and 33.
  • the output of registor circuit 8 is in state 1 as mentioned previously.
  • the bistable circuit 10 is also in state 1 since the train is in the state of reception.
  • the comparator circuit 15 takes the state 1 if the indication of the preceding zone contained in the message decoded by decoder 7 coincides with the one stored in memory 14.
  • the comparator circuit 22 is in state 1 if the name contained in the message decoded by decoder 7 is identical to the one stored in memory circuit 21.
  • the comparator circuit 19 is in state 1 if the distance travelled by the train in zone Z coincides, within a predetermined value, with the one provided by the central station and stored in registor 17.
  • the comparator 33 is in state 1 if the indication of the type of train stored in register 34 is identical to the one stored in register 35 by decoder 7.
  • the logic circuit 32 takes the state 1 and the transfer circuits 29, 30 and 31 transfer the operating instructions received into an indicating circuit 39.
  • the speed of the train the measure of which is provided by circuit 36 is compared with the operating instruction relating to such speed and contained in memory 26 and, if such speed is exceeded, as detected by a comparator 37, an automatic braking device 38 will be operated.
  • the type of train, its speed and the correction to be made to the data stored in the central station concerning the distance from any obstacle on the railway network are introduced into a encoder 40 which modulates a transmitter 41 for transmitting the above information to the central station by means of an antenna 42 coupled with cable 3.
  • the encoder 40 is placed under control of a logic circuit 43 of the OR type whose inputs are connected to the outputs of logic circuits 13 and 32. This information is stored in the central station in a portion of the memory thereof associated with the train having such coded name.
  • the above information will permit the central station to determine, for a predetermined time of transmission I, following a time t, of transmission of an acknowledgement message, the maximum speed permitted for the train, which speed depends on its location, on its braking capacity (type of train) and on the obstacles located ahead of the train. If the distance travelled by the train at time 1, since its point of entry into zone 2 is called X and the speed of the train at that time V, the distance X travelled by the train at the instant t will be:
  • a central station will then be able to determine at any instant t,, of transmission of a message pertaining to operating instructions to the train (by means of any known apparatus) the maximum speed permitted to the train from the information received at instant t, of reception of the acknowledgement message and taking into consideration the obstacles located ahead of the train.
  • An apparatus further comprising a level detector connected to said receiver and responsive to a silent gap preceding said zone for resetting said counting means to zero before the entry of the train in said zone.
  • An apparatus as defined in claim 2 comprising a memory circuit for storing said coded name of the train during its full travel in said zone, and means for feeding said memory circuit during the first message received by the train and containing said coded name.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Mobile Radio Communication Systems (AREA)
US37103A 1966-10-05 1970-05-14 Apparatus for the centralized control of the operation of trains Expired - Lifetime US3676669A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
BE34174 1966-10-05
BE687823 1966-10-05
BE34179 1966-10-05
FR122934A FR1538273A (fr) 1966-10-05 1967-10-02 Procédé et dispositif de commande centralisée de la marche des trains
CA805238T 1969-01-28

Publications (1)

Publication Number Publication Date
US3676669A true US3676669A (en) 1972-07-11

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Application Number Title Priority Date Filing Date
US37103A Expired - Lifetime US3676669A (en) 1966-10-05 1970-05-14 Apparatus for the centralized control of the operation of trains

Country Status (13)

Country Link
US (1) US3676669A (fr)
JP (1) JPS5147929B1 (fr)
BE (1) BE687823A (fr)
CA (1) CA805238A (fr)
CH (1) CH481783A (fr)
DE (1) DE1605388B2 (fr)
ES (1) ES345186A1 (fr)
FR (1) FR1538273A (fr)
GB (1) GB1161940A (fr)
LU (1) LU54586A1 (fr)
NL (1) NL6713473A (fr)
SE (1) SE334912B (fr)
YU (1) YU31186B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731086A (en) * 1971-10-15 1973-05-01 Gen Signal Corp Railroad vehicle control system
US3895584A (en) * 1972-02-10 1975-07-22 Secr Defence Brit Transportation systems
FR2305333A1 (fr) * 1975-03-24 1976-10-22 Int Standard Electric Corp Procede pour faire passer un vehicule d'une zone de controle automatique dans une zone de commande individuelle
US4166599A (en) * 1977-06-21 1979-09-04 General Signal Corporation Wayside oriented moving block
NL8700674A (nl) * 1986-04-08 1987-11-02 Gen Signal Corp Op radio gebaseerd spoorwegsignalerings- en verkeersbesturingsstelsel.
US5072900A (en) * 1989-03-17 1991-12-17 Aigle Azur Concept System for the control of the progression of several railway trains in a network
US5074499A (en) * 1988-11-18 1991-12-24 Gec Alsthom Sa System for transmitting initialization information between fixed installations and trains
US6556898B2 (en) 2001-05-18 2003-04-29 Bombardier Transportation Gmbh Distributed track network control system
CN103129586A (zh) * 2013-03-19 2013-06-05 合肥工大高科信息科技股份有限公司 基于轨道电路的机车位置监测与安全控制装置及其控制方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337392A1 (de) * 1983-10-14 1985-04-25 Aachener Forschungsgesellschaft Regelungstechnik, 5100 Aachen Steuerungsverfahren fuer transportanlagen mit mehreren spurgebundenen transportfahrzeugen auf einer gemeinsamen fahrbahn
SE501095C2 (sv) * 1992-08-31 1994-11-14 Carrnovo Ab Förfarande och anordning för styrning av ett antal rullande enheter i en bananläggning

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250914A (en) * 1961-11-02 1966-05-10 Gen Signal Corp Zone control system
US3268727A (en) * 1964-03-25 1966-08-23 Gibbs & Hill Inc Computer control for transit system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250914A (en) * 1961-11-02 1966-05-10 Gen Signal Corp Zone control system
US3268727A (en) * 1964-03-25 1966-08-23 Gibbs & Hill Inc Computer control for transit system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731086A (en) * 1971-10-15 1973-05-01 Gen Signal Corp Railroad vehicle control system
US3895584A (en) * 1972-02-10 1975-07-22 Secr Defence Brit Transportation systems
FR2305333A1 (fr) * 1975-03-24 1976-10-22 Int Standard Electric Corp Procede pour faire passer un vehicule d'une zone de controle automatique dans une zone de commande individuelle
US4034942A (en) * 1975-03-24 1977-07-12 International Standard Electric Corporation Method of leading a rail vehicle by means of a control center from an automatically controlled area to an area of individual control
US4166599A (en) * 1977-06-21 1979-09-04 General Signal Corporation Wayside oriented moving block
NL8700674A (nl) * 1986-04-08 1987-11-02 Gen Signal Corp Op radio gebaseerd spoorwegsignalerings- en verkeersbesturingsstelsel.
US4711418A (en) * 1986-04-08 1987-12-08 General Signal Corporation Radio based railway signaling and traffic control system
US5074499A (en) * 1988-11-18 1991-12-24 Gec Alsthom Sa System for transmitting initialization information between fixed installations and trains
US5072900A (en) * 1989-03-17 1991-12-17 Aigle Azur Concept System for the control of the progression of several railway trains in a network
US6556898B2 (en) 2001-05-18 2003-04-29 Bombardier Transportation Gmbh Distributed track network control system
CN103129586A (zh) * 2013-03-19 2013-06-05 合肥工大高科信息科技股份有限公司 基于轨道电路的机车位置监测与安全控制装置及其控制方法

Also Published As

Publication number Publication date
FR1538273A (fr) 1968-08-30
JPS5147929B1 (en) 1976-12-17
LU54586A1 (fr) 1967-12-04
CH481783A (fr) 1969-11-30
DE1605388B2 (de) 1975-10-09
DE1605388A1 (de) 1971-04-15
YU31186B (en) 1973-02-28
SE334912B (sv) 1971-05-10
ES345186A1 (es) 1968-11-01
NL6713473A (nl) 1968-04-08
CA805238A (en) 1969-01-28
GB1161940A (en) 1969-08-20
BE687823A (fr) 1967-04-05

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