• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for confirming the integrity of a hitch of a railway train comprising at least a first car and a second car, the device comprising a communication medium extending between the first car and the second car, a first beacon embedded in one of the cars and connected to the communication medium, a second beacon embedded in the other car and connected to the communication medium, the device being characterized in that the communication medium is adapted to convey a signal modulated by predetermined coding data from the second beacon to the first beacon, and to break in case of rupture of a hitch between the two cars, and in that the device is able to confirm the integrity of a hitch between the cars of the railroad train if the signal received by the first beacon are identical to the predetermined coding data.
    公开号:FR3025479A1
    申请号:FR1458474
    申请日:2014-09-10
    公开日:2016-03-11
    发明作者:Frederic Henry；Brice Andre
    申请人:Alstom Transport Technologies SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a device for confirming the integrity of a hitch of a railway train comprising at least a first car and a second car. , the device comprising a communication medium extending between the first car and the second car, a first beacon embedded in one of the cars and connected to the communication medium, a second beacon embedded on board the other car. cars and connected to the communication medium. The invention applies to the field of railway safety, in particular to the confirmation of integrity of a railway train. For the purposes of this application, the term "confirmation of integrity" means the detection of the non-rupture of a coupling of the railway train, that is to say the non-breaking of the mechanical connection between two wagons or two cars of a railway train, whether it is "screw", automatic or any other type of coupling.
    [0002] It is known to use a transmitter to generate a signal at a first car of a train convoy, located at the tail of the convoy, and to apply this signal, successively over time and in the form of a signal. acoustic wave, to a pressure line of the railway convoy. A receiver, placed on board a second car of the train convoy, located at the head of the convoy, is adapted to receive the acoustic wave generated by the transmitter and propagating in the pressure line. In the event of a coupling failure, the acoustic wave can not propagate between the transmitter and the receiver along the pressure line. The receiver, no longer receiving the acoustic wave generated by the transmitter, then detects a coupling failure within the railway train. Nevertheless, such a device does not give complete satisfaction. Indeed, the acoustic wave emitted by the transmitter attenuates during its propagation along the pressure line. Because of the length of railway convoys, the power of the acoustic wave reaching the receiver is likely to be at a level similar to that of the random noise present in the pressure line and which is also detected by the detector. It is then not possible to state with a sufficient level of reliability that the signal detected by the detector is the acoustic wave that has been emitted by the onboard transmitter aboard the first car. This means that it is not possible to say, with a sufficient level of reliability, that the railway convoy is always intact.
    [0003] An object of the invention is therefore to propose a device that makes it possible to confirm the integrity of a railway train with better reliability. For this purpose, the subject of the invention is a device of the aforementioned type, in which: the second beacon is capable of generating a signal modulated by predetermined coding data and of applying the modulated signal to the communication medium; - The communication medium is adapted to convey said signal to the first beacon, the communication medium being further able to break in case of rupture of a coupling between the two cars thus preventing the propagation of the signal to the first. beacon; The first beacon is adapted to receive a signal conveyed by the communication medium and to extract coding data extracted from the received signal; the device being able to confirm the integrity of a coupling between the cars of the railroad train if the coding data extracted by the first beacon are identical to the predetermined coding data.
    [0004] Indeed, it is possible to choose a code of sufficient size to allow the device to detect the code with sufficient reliability, that is to say, to discriminate the code received from a code generated randomly by the noise, with an error rate below a desired threshold. According to other advantageous aspects of the invention, the detection device 20 comprises one or more of the following characteristics, taken in isolation or in any technically possible combination: the second beacon is capable of calculating the image of a predetermined code by a first predetermined function to form a calculated key, the calculated key forming the coding data, the second beacon being further adapted to modulate said signal generated by the second beacon by the predetermined code, the first beacon is suitable for extracting an extracted code and a key extracted from the received signal via the communication medium and applying the first predetermined function to the extracted code to form a calculated key, and the device is able to confirm the integrity of a link between the cars of the 30 train convoy if the key extracted by the first beacon is identical to the key calculated by the first beacon ; the first beacon is adapted to apply a second predetermined function to the extracted coding data to form image data, to generate a response signal modulated by the image data and to transmit the response signal to the second beacon The second beacon is adapted to apply the second predetermined function to the coding data to form reference image data, to receive the response signal, to extract extracted image data from the received response signal and to compare the image data extracted from the reference image data, and the device is able to confirm the integrity of a coupling between the cars of the railway train if the extracted image data are identical to the reference image data; the first beacon comprises an emitter of electromagnetic waves, the second beacon comprises an electromagnetic wave receiver, the first beacon being capable of transmitting the response signal by air via the emitter of electromagnetic waves, the second beacon being adapted to receive the response signal by air via the electromagnetic wave receiver; the communication medium is a pressure line of the railway train, and in that the second beacon is capable of applying an acoustic signal to the communication medium; - The communication medium is an electric cable of the railway train, and in that the second beacon is adapted to apply an electrical signal to the communication medium; - The device is able to further transmit in the signal generated from a first tag to a second tag via the communication medium additional information, not related to the confirmation of integrity of the railway train. In addition, the subject of the invention is a railway train comprising a device for confirming the integrity of a hitch as defined above, to confirm the integrity of a hitch of said railway train.
    [0005] The invention will be better understood with the aid of the description which follows, given solely by way of nonlimiting example and with reference to the appended drawings in which: FIG. 1 is a diagrammatic representation of a convoy railway comprising a detection device according to the invention; Figure 2 is a schematic representation of a first beacon of the device of Figure 1; FIG. 3 is a schematic representation of a second beacon of the device of FIG. 1; FIG. 4 is a schematic representation of a first beacon of a second embodiment of a detection device according to the invention; FIG. 5 is a schematic representation of a second beacon of the second embodiment of the detection device according to the invention; FIG. 6 is a schematic representation of a railway train comprising a third embodiment of a detection device according to the invention; FIG. 7 is a schematic representation of a first beacon of the device of FIG. 6; FIG. 8 is a schematic representation of a second beacon of the device of FIG. 6; FIG. 9 is a flow diagram of the operation of the detection device implementing the beacons of FIGS. 7 and 8; FIG. 10 is a schematic representation of a railway train comprising a fourth embodiment of a detection device according to the invention; FIG. 11 is a schematic representation of a first beacon of the device of FIG. 10; FIG. 12 is a schematic representation of a second beacon of the device of FIG. 10; and FIG. 13 is a flowchart of the operation of the detection device 20 implementing the beacons of FIGS. 11 and 12. A railway train 2 comprising a device 4 for confirming integrity according to the invention is represented in FIG. The railway train 2 comprises a plurality of cars 6, including a head car 6A and a car 6B tail.
    [0006] The cars 6 are connected two by two together by a hitch (not shown). The detection device 4 comprises a communication support 8, a control beacon 10 and a transmitting beacon 12. The communication support 8 extends along the railway train 2.
    [0007] In particular, the communication support 8 extends between the head car 6A and the tail car 6B. The control beacon 10 is aboard the leading car 6A, and the transmitting beacon 12 is on board the car 6B tail. Each of the control and transmitting beacons 12 is connected to the communication medium 8.
    [0008] The communication support 8 is able to break in the event of a breakage of the coupling between the cars 6A, 6B. The communication support 8 is for example a general pressure line of the railway train 2, intended to pneumatically control a braking system of the railway train 2. In a variant, the communication support 8 is an electric cable of the railway train 2. As illustrated in FIG. 2, the control beacon 10 comprises an information processing unit 14, connected to a receiver 16. The processing unit 14 comprises a memory 18 and a processor 20. The memory 18 stores a receiving software 22 and a comparison software 24. The memory 18 further comprises a first storage area 28 of a predetermined code, for example a 256-bit code.
    [0009] The processor 20 is able to execute the software 22, 24 stored in the memory 18. The receiver 16 is able to pick up signals propagating along the communication medium 8. In the case of a pressure line forming the support communication 8, the receiver 16 is adapted to receive acoustic waves. In the case of an electrical cable forming the communication medium 8, the receiver 16 is able to receive electrical signals. The receiving software 22 is able to process the signals picked up by the receiver 16 to extract a code. The comparison software 24 is able to compare each code extracted by the receiving software 22 with the predetermined code.
    [0010] As illustrated in FIG. 3, the transmitting beacon 12 comprises an information processing unit 32, connected to a transmitter 34. The processing unit 32 comprises a memory 36 and a processor 38. The memory 36 stores software The memory 36 further comprises a second storage area 42 of the predetermined code.
    [0011] The transmitter 34 is adapted to apply signals to the communication medium 8. In the case of a pressure line forming the communication medium 8, the transmitter 34 is suitable for applying acoustic waves. In the case of an electrical cable forming the communication medium 8, the transmitter 34 is able to apply electrical signals.
    [0012] The transmission software 40 is able to generate a signal modulated by the predetermined code. The transmission software 40 is furthermore able to transmit the signal generated to the transmitter 34. In operation, the transmission software 40 of the transmitting beacon 12 generates a signal modulated by the predetermined code stored in the second zone The predetermined code then forms encoding data. Then the transmitter 34 of the transmitting beacon 12 applies the signal to the communication medium 8.
    [0013] Advantageously, the transmitting beacon 12 transmits the signal successively over time at a repetition rate greater than 0.1 Hz, preferably greater than 1 Hz, for example greater than 5 Hz. If the receiver 16 of the beacon beacon control 10 receives a signal conveyed by the communication medium 8, then the reception software 22 of the control beacon 10 processes said signal to extract a code. Then the comparison software 24 compares the received code with the predetermined code which is stored in the first storage area 28. If the code received is identical to the predetermined code, then the railway train 2 is considered to be intact and the control beacon 10 transmits a confirmation signal 10 integrity of the railway train, for example to an operator or a monitoring system of the rail network. If, the received code is different from the predetermined code, or if, after a predetermined waiting period, the control beacon 10 does not receive a signal comprising a code identical to the predetermined code, then the control beacon 10 does not issue a confirmation signal integrity of the railway vehicle. According to a second embodiment of the detection device 4 according to the invention, the control beacon 10 and the transmitting beacon 12 are further adapted to implement at least one transmission error detection algorithm. For example, the control and transmitter beacons 12 are adapted to implement a conventionally known CRC (conventionally known as "redundancy check") transmission error detection algorithm. In the case of a CRC encoding, the algorithm implements a predetermined generator polynomial. Advantageously, the predetermined generator polynomial is adapted to enable detection, with a reliability greater than a predetermined reliability threshold, of possible transmission errors between the control beacon 10 and the transmitting beacon 12. As illustrated in FIG. the memory 18 of the processing unit 14 of the control beacon 10 also stores a calculation software 44. The memory 18 further comprises a third storage area 46 of the generator polynomial. Unlike the control beacon 10 illustrated in FIG. 2, the control beacon 10 illustrated in FIG. 4 does not have a first storage area of the predetermined code. As illustrated by FIG. 5, the memory 36 of the processing unit 32 of the transmitting beacon 12 also stores a calculation software 48. The memory 36 furthermore comprises a fourth storage area 50 of the generator polynomial.
    [0014] The calculation software 44, respectively 48, is adapted to apply the detection algorithm implementing the generator polynomial stored in the third storage area 46, respectively the fourth storage area 50, to a code. In particular, the calculation software 48 of the transmitting beacon 12 is suitable for applying the detection algorithm to the predetermined code stored in the second storage area 42. In addition, the calculation software 44 of the control beacon 10 is clean. to apply the detection algorithm to a code provided by the receiving software 22. In operation, the calculation software 48 of the transmitting beacon 12 calculates a control key relating to the predetermined code. Then the transmission software 40 of the transmitting beacon 12 transmits to the transmitter 34 a signal modulated by the predetermined code and the corresponding control key. The control key then forms the encoding data.
    [0015] The transmitter 34 applies said signal to the communication medium 8. If the receiver 16 of the control beacon 10 receives a signal conveyed by the communication medium 8, then the reception software 22 of the control beacon 10 processes said signal to extract a code and a corresponding key. Then the calculation software 44 calculates a control key relating to the code extracted by the reception software 22, by means of the generator polynomial stored in the third storage area 46. The comparison software 24 then compares the key extracted by the software. 22 and the key calculated by the calculation software 44. If the calculated key is identical to the extracted key, then the railway train 2 is considered to be intact and the control beacon 10 transmits a confirmation signal integrity of the convoy for example to an operator or a railway monitoring system. If, the calculated key is different from the key extracted, or if, after a predetermined waiting period, the control beacon 10 does not receive a signal comprising a code identical to the predetermined code, then the beacon of control 10 does not emit a signal confirming the integrity of the railway vehicle.
    [0016] According to a third embodiment of the detection device 4, illustrated by FIGS. 6 to 9, the control beacon 10 is on board the car 6B, and the transmitting beacon 12 is on board the car of head 6A. The control beacon 10 illustrated in FIG. 7 differs from the control beacon illustrated in FIG. 4 in that it comprises an electromagnetic wave emitter 52, also called a "transmitting antenna". In addition, the memory 18 of the control beacon 10 stores transmission software 56, similar to the transmission software 40 described above. The memory 18 of the control beacon 10 does not store comparison software. The transmitting beacon 12 illustrated in FIG. 8 differs from the emitter beacon illustrated in FIG. 5 in that it comprises an electromagnetic wave receiver 58, also called a "receiving antenna", as illustrated in FIG. furthermore, the memory 36 of the transmitting beacon 12 stores comparison software 60, similar to the comparison software 24 described above. The memory 36 also stores a reception software 62, similar to the reception software 22 described above. The transmitting antenna 52 is capable of emitting an electromagnetic signal into the air. Preferably, the transmitting antenna 52 of the control beacon 10 is able to emit an electromagnetic signal either directly towards the receiving antenna 58 of the transmitting beacon 12 or through a communication network. of type GSM-R for example. The receiving antenna 58 is adapted to receive an electromagnetic signal propagating in the air. Preferably, the receiving antenna 58 of the transmitting beacon 12 is adapted to receive an electromagnetic signal either directly from the transmitting antenna of the control beacon 10, or through a communication network, from type GSM-R for example. The transmission software 40 of the processing unit 32 of the transmitting beacon 12 is capable of generating a signal modulated by a code, also called a "modulation code", for example the predetermined code or a random code. The third storage area 46 of the control beacon 10 and the fourth storage area 50 of the transmitting beacon 12 store a predetermined function. Such a function is suitable for associating an image code with a code provided to the function.
    [0017] The calculation software 44 of the control beacon 10 and the calculation software 48 of the transmitting beacon are each adapted to apply the predetermined function stored in the third storage area 46, respectively the fourth storage area 50, to a code . The operation of the detection device 4 will be described with reference to FIG. 9. In operation, the transmission software 40 of the transmitting beacon 12 generates a signal modulated by the modulation code. The modulation code then forms the coding data. Then the transmitter 34 of the transmitting beacon 12 applies the generated signal to the communication medium 8. In addition, the calculation software 48 of the transmitting beacon 12 applies the predetermined function which is stored in the fourth storage area 50 to the code modulation scheme to obtain a reference image code. If the receiver 16 of the control beacon 10 receives a signal conveyed by the communication medium 8, then the receiving software 22 of the control beacon 10 processes said signal to extract a code. Then the calculation software 44 calculates the image code, by the predetermined function which is stored in the third storage area 46, of the extracted code. The transmission software 56 of the control beacon 10 then generates a response signal comprising the extracted code code. Then the transmitting antenna 52 of the control beacon 10 emits the response signal in the air in the form of an electromagnetic wave. If the receiving antenna 58 of the transmitting beacon 12 receives a signal emitted by the transmitting antenna 52 of the control beacon 10, then the transmitting beacon receiving software 62 processes the signal to extract a code therefrom. -picture. Then the comparison software 60 compares the extracted image code and the reference image code. If the extracted image code is identical to the reference image code, then the railway train 2 is considered to be intact and the control beacon 10 transmits a confirmation signal 10 of integrity of the railway train, for example to a destination. operator or a railway monitoring system. If, at the end of a second predetermined waiting period following the transmission of the transmitted signal, the receiving antenna 58 of the transmitting beacon 12 does not receive a signal from the transmitting antenna 52 of the control beacon 10, then the control beacon 10 does not emit a signal confirming the integrity of the railway vehicle. In addition, if the extracted image code is different from the reference image code, and after a third predetermined waiting period, the receiving antenna 58 of the transmitting beacon 12 does not pick up a signal. new signal for which the extracted image code is identical to the reference image code, then the control beacon 10 does not emit a rail vehicle integrity confirmation signal. According to a fourth embodiment of the detection device 4, illustrated by FIGS. 10 to 12, the control beacon 10 is on board the car 6B, and the transmitting beacon 12 is on board the leading car. 6A.
    [0018] The control beacon 10 illustrated in FIG. 11 differs from the control beacon illustrated in FIG. 7 in that it does not include an emitter of electromagnetic waves. This is replaced by a transmitter 64, similar to the transmitter 34 of acoustic or electrical signals illustrated in FIG. 8, connected to the communication medium 8.
    [0019] The transmitting beacon 12 illustrated in FIG. 12 differs from the transmitting beacon illustrated in FIG. 8 in that it does not include an electromagnetic wave receiver. This is replaced by a receiver 66, similar to the acoustic or electrical signal receiver 16 illustrated in FIG. 7, connected to the communication medium 8.
    [0020] In this embodiment, the communication medium 8 is used bi-directionally as shown in FIG. 13, that is, for emitting beacon signaling 12 to the control beacon 10. , and from the control beacon 10 to the transmitting beacon 12. The operation of the device 4 shown in FIGS. 10 to 12 is similar to the operation of the device 4 illustrated in FIGS. 6 to 8. According to a fifth embodiment, the device 4 is able to further transmit in the generated signal of a first beacon 10, 12 to a second beacon 12, 10 via the communication medium 8 additional information, not related to the confirmation of integrity of the convoy, this information being in addition to the coding performed on the generated signal, to confirm the integrity of the train. In this embodiment, the communication medium 8 is used bidirectionally or not, thus allowing a communication, not necessarily related to the confirmation of integrity, between the first beacon 10, 12 and the second beacon 12, 10.
    权利要求:
    Claims (8)
    [0001]
    1. A device (4) for confirming the integrity of a coupling of a railway train (2) comprising at least a first car (6A; 6B) and a second car (6B; 6A), the device (4) comprising a communication medium (8) extending between the first car (6A; 6B) and the second car (6B; 6A), a first beacon (10) on board one of the cars (6A; 6B) and connected to the communication medium (8), a second beacon (12) on board the other of the cars (6B; 6A) and connected to the communication medium (8), the device (4) being characterized in that the second beacon (12) is able to generate a signal modulated by predetermined coding data and to apply the modulated signal to the communication medium (8); - The communication medium (8) is adapted to convey said signal to the first beacon (10), the communication medium (8) being furthermore able to break in case of rupture of a coupling between the two cars (6A , 6B) then preventing the propagation of the signal to the first beacon (10); the first beacon (10) is adapted to receive a signal conveyed by the communication medium (8) and to extract coding data extracted from the received signal; and in that the device (4) is capable of confirming the integrity of a coupling between the cars (6A, 6B) of the railway train (2) if the coding data extracted by the first beacon (10) are identical to the predetermined coding data.
    [0002]
    2.- Device (4) according to any one of the preceding claims, characterized in that the second beacon (12) is adapted to calculate the image of a predetermined code by a first predetermined function to form a calculated key, the calculated key forming the coding data, the second beacon (12) being further adapted to modulate said signal generated by the second beacon (12) by the predetermined code, in that the first beacon (10) is adapted to extract a code extract and a key extracted from the signal received via the communication medium (8) and to apply the first predetermined function to the extracted code to form a calculated key, 3025479 12 and in that the device (4) is able to confirm the integrity a coupling between the cars (6A, 6B) of the railway train (2) if the key extracted by the first beacon (10) is identical to the key calculated by the first beacon (10). 5
    [0003]
    3.- Device (4) according to any one of the preceding claims, characterized in that the first beacon (10) is adapted to apply a second predetermined function to the extracted coding data to form image data, to generate a signal the second signal (12) is adapted to apply the second predetermined function to the encoding data to form reference image data, receiving the response signal, extracting extracted image data from the received response signal and comparing the extracted image data with the reference image data, and that the device (4) is able to confirm the integrity of a coupling between the cars (6A, 6B) of the railway train (2) if the extracted image data are identical to the reference image data.
    [0004]
    4.- Device (4) according to claim 3, characterized in that the first beacon (10) comprises an emitter of electromagnetic waves (52), the second beacon (12) comprises an electromagnetic wave receiver (58) , the first beacon (10) being adapted to transmit the response signal by air via the electromagnetic wave transmitter (52), the second beacon (12) being adapted to receive the response signal by air via the receiver electromagnetic waves (58). 25
    [0005]
    5.- Device (4) according to any one of the preceding claims, characterized in that the communication medium (8) is a pressure line of the railway train (2), and in that the second beacon (12) is adapted to apply an acoustic signal to the communication medium (8). 30
    [0006]
    6.- Device (4) according to any one of the preceding claims, characterized in that the communication medium (8) is an electric cable of the railway train (2), and in that the second beacon (12) is clean applying an electrical signal to the communication medium (8). 3025479 13
    [0007]
    7.- Device (4) according to any one of the preceding claims, characterized in that it is adapted to further transmit in the generated signal from a first beacon (10; 12) to a second beacon (12; ) via the communication medium (8) additional information, not related to the confirmation of integrity 5 of the railway train (2).
    [0008]
    8. A railway train (2) characterized in that it comprises a device (4) according to any one of the preceding claims for confirming the integrity of a coupling of said railway train (2).
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    同族专利:
    公开号 | 公开日
    ES2744650T3|2020-02-25|
    EP2995529B1|2019-06-12|
    CL2015002549A1|2016-05-13|
    FR3025479B1|2017-10-06|
    BR102015022101A2|2016-03-15|
    SA115360748B1|2019-08-15|
    AU2015224435A1|2016-03-24|
    RU2697162C1|2019-08-12|
    AU2015224435B2|2019-01-31|
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    引用文献:
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    法律状态:
    2015-09-22| PLFP| Fee payment|Year of fee payment: 2 |
    2016-03-11| PLSC| Publication of the preliminary search report|Effective date: 20160311 |
    2016-09-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-09-28| PLFP| Fee payment|Year of fee payment: 4 |
    2018-02-02| CA| Change of address|Effective date: 20180103 |
    2018-09-24| PLFP| Fee payment|Year of fee payment: 5 |
    2019-09-25| PLFP| Fee payment|Year of fee payment: 6 |
    2021-06-11| ST| Notification of lapse|Effective date: 20210506 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1458474A|FR3025479B1|2014-09-10|2014-09-10|CONFIGURATION DEVICE FOR INTEGRITY OF A HITCHING OF A RAILWAY CONVEY AND ASSOCIATED RAILWAY CONVEYOR|FR1458474A| FR3025479B1|2014-09-10|2014-09-10|CONFIGURATION DEVICE FOR INTEGRITY OF A HITCHING OF A RAILWAY CONVEY AND ASSOCIATED RAILWAY CONVEYOR|
    ES15183690T| ES2744650T3|2014-09-10|2015-09-03|Device for confirming the integrity of a coupling of a railway convoy and associated railway convoy|
    EP15183690.5A| EP2995529B1|2014-09-10|2015-09-03|Device for confirming the integrity of a coupling of a rail vehicle and associated rail vehicle|
    SA115360748A| SA115360748B1|2014-09-10|2015-09-08|Device for confirming the integrity of a coupling of a rail vehicle and associated rail vehicle|
    RU2015138461A| RU2697162C1|2014-09-10|2015-09-09|Device for confirming integrity of rail vehicle coupling and corresponding rail vehicle|
    BR102015022101A| BR102015022101A2|2014-09-10|2015-09-09|device for confirming the integrity of a coupling of a rail vehicle and associated rail vehicle|
    AU2015224435A| AU2015224435B2|2014-09-10|2015-09-09|Device for confirming the integrity of a coupling of a rail vehicle and associated rail vehicle|
    CL2015002549A| CL2015002549A1|2014-09-10|2015-09-09|Device for confirming the integrity of a coupling of a railway vehicle and an associated railway vehicle.|
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