EP4180300A1 - Dispositif de détection et procédé de détection d'une variation de champ magnétique - Google Patents

Dispositif de détection et procédé de détection d'une variation de champ magnétique Download PDF

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Publication number
EP4180300A1
EP4180300A1 EP22203514.9A EP22203514A EP4180300A1 EP 4180300 A1 EP4180300 A1 EP 4180300A1 EP 22203514 A EP22203514 A EP 22203514A EP 4180300 A1 EP4180300 A1 EP 4180300A1
Authority
EP
European Patent Office
Prior art keywords
sensor device
operating mode
resonant circuit
time period
frequency
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.)
Pending
Application number
EP22203514.9A
Other languages
German (de)
English (en)
Inventor
Rainer Freise
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.)
Siemens Mobility GmbH
Original Assignee
Siemens Mobility GmbH
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 Siemens Mobility GmbH filed Critical Siemens Mobility GmbH
Publication of EP4180300A1 publication Critical patent/EP4180300A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/162—Devices for counting axles; Devices for counting vehicles characterised by the error correction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/02—Electric devices associated with track, e.g. rail contacts
    • B61L1/10—Electric devices associated with track, e.g. rail contacts actuated by electromagnetic radiation; actuated by particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/163—Detection devices
    • B61L1/165—Electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/167—Circuit details

Definitions

  • the level is adjusted in the subsequent amplifying device 17 in order to simplify further processing in the microprocessor 18 .
  • the synchronous rectifier 15 operates in the same way in the second period T2 as in the first period T1. Therefore, portions of the disturbance variable that were present in the measurement signal 13 during the first time period T1 are also considered in the second time period T2 Received signal U_e in the form of an analog signal to the microprocessor 18 out.
  • the second low-pass filter 20 is designed in such a way that it filters out the interference signal components in the received signal U_e, which have the effect of demodulating the interference variables and the frequency f2. Otherwise the compensated measured value is calculated in the same way as in the embodiment in FIGS Figures 1 and 2 formed by subtracting the second measured value during the second time period T2 from the first measured value during the first time period T1.
  • the phasing is readjusted to an optimum if this is necessary. This can possibly be advantageous depending on the switching behavior of the transmitting resonant circuit 4 between the frequencies F1 and F2. If, for example, switching only takes place between complete half-waves, the phase position on the synchronous rectifier 15.1 may have to be readjusted or tracked.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
EP22203514.9A 2021-11-15 2022-10-25 Dispositif de détection et procédé de détection d'une variation de champ magnétique Pending EP4180300A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021212809.2A DE102021212809A1 (de) 2021-11-15 2021-11-15 Sensoreinrichtung und Verfahren zum Erfassen einer Magnetfeldänderung

Publications (1)

Publication Number Publication Date
EP4180300A1 true EP4180300A1 (fr) 2023-05-17

Family

ID=83996296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22203514.9A Pending EP4180300A1 (fr) 2021-11-15 2022-10-25 Dispositif de détection et procédé de détection d'une variation de champ magnétique

Country Status (2)

Country Link
EP (1) EP4180300A1 (fr)
DE (1) DE102021212809A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915597A1 (de) 1998-04-08 1999-12-30 Josef Frauscher Radsensor
DE10137519A1 (de) 2001-07-30 2003-02-13 Siemens Ag Radsensor
JP2007022136A (ja) * 2005-07-12 2007-02-01 Nippon Signal Co Ltd:The 車軸検知装置
DE102007023475A1 (de) * 2007-05-15 2008-12-11 Siemens Ag Radsensor
DE102008056481A1 (de) 2008-11-05 2010-05-06 Siemens Aktiengesellschaft Radsensor
DE102014207409A1 (de) 2014-04-17 2015-10-22 Siemens Aktiengesellschaft Sensoreinrichtung zum Erfassen einer Magnetfeldänderung sowie Anlage des spurgebundenen Verkehrs mit zumindest einer solchen Sensoreinrichtung
DE102017220281A1 (de) 2017-11-14 2019-05-16 Siemens Aktiengesellschaft Sensoreinrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915597A1 (de) 1998-04-08 1999-12-30 Josef Frauscher Radsensor
DE10137519A1 (de) 2001-07-30 2003-02-13 Siemens Ag Radsensor
JP2007022136A (ja) * 2005-07-12 2007-02-01 Nippon Signal Co Ltd:The 車軸検知装置
DE102007023475A1 (de) * 2007-05-15 2008-12-11 Siemens Ag Radsensor
DE102008056481A1 (de) 2008-11-05 2010-05-06 Siemens Aktiengesellschaft Radsensor
DE102014207409A1 (de) 2014-04-17 2015-10-22 Siemens Aktiengesellschaft Sensoreinrichtung zum Erfassen einer Magnetfeldänderung sowie Anlage des spurgebundenen Verkehrs mit zumindest einer solchen Sensoreinrichtung
DE102017220281A1 (de) 2017-11-14 2019-05-16 Siemens Aktiengesellschaft Sensoreinrichtung

Also Published As

Publication number Publication date
DE102021212809A1 (de) 2023-05-17

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