CN112622981A - Medium-low speed magnetic levitation turnout position indicating circuit - Google Patents
Medium-low speed magnetic levitation turnout position indicating circuit Download PDFInfo
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- CN112622981A CN112622981A CN202011527134.0A CN202011527134A CN112622981A CN 112622981 A CN112622981 A CN 112622981A CN 202011527134 A CN202011527134 A CN 202011527134A CN 112622981 A CN112622981 A CN 112622981A
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- 238000005339 levitation Methods 0.000 title claims description 7
- 238000001514 detection method Methods 0.000 claims abstract description 74
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 11
- 239000000725 suspension Substances 0.000 abstract description 11
- 230000008054 signal transmission Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
- B61L5/107—Locking mechanisms for points; Means for indicating the setting of points electrical control of points position
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to a middle-low speed magnetic suspension turnout position indicating circuit, which comprises: the device comprises a position detection module and a locking in-place detection module; the position detection module is connected with the locking in-place detection module in series and is electrically connected with a signal interface for sending a position representation signal to the operation control center; the position detection module is formed by connecting a plurality of position detection units in series; the in-place locking detection module is formed by connecting a plurality of in-place locking detection units in series, and any one in-place locking detection unit is formed by connecting a plurality of in-place locking small units in series; any one position detection unit and the locking in-place detection small unit at least comprise two groups of normally open contacts, and at least one group of normally open contacts are respectively connected in series with the anode and the cathode of the position indication circuit; and the position detection module and the locking in-place detection module generate position indicating signals and send the position indicating signals to the operation and control center after detecting that the switch of the turnout beam is in place and the locking device is locked in place. The circuit has clear logic and simple loop, is beneficial to reducing the representation faults and improving the reliability of the whole circuit.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to a middle-low speed magnetic suspension turnout position indicating circuit.
Background
In the medium-low speed magnetic suspension turnout control system, the position indicating circuit is a circuit for generating a turnout position signal; the switch position indicating signal is important for the operation and control center to clearly identify the switch position. If the circuit is in fault or the transmission path is in error, the detection of the operation and control center on the current turnout position is influenced, and the adverse effect on the safe operation of the medium-speed and low-speed magnetic suspension system is caused.
In the prior art, a position indicating circuit of a medium-low speed magnetic suspension turnout is formed by driving a plurality of relays through limit switches and then generating the position indicating circuit by using contact combinations of the relays, but the circuit is complex and has a plurality of devices, so that the probability of output faults is high.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a circuit for indicating the position of a medium-low speed magnetic suspension turnout.
The technical problem to be solved by the invention is realized by the following technical scheme:
the invention provides a circuit for indicating the position of a medium-low speed magnetic suspension turnout, which comprises: the device comprises a position detection module and a locking in-place detection module; wherein the content of the first and second substances,
the position detection module is connected with the in-place locking detection module in series and is electrically connected with a signal interface for sending a position representation signal to an operation control center;
the position detection module is formed by connecting a plurality of position detection units in series and is used for detecting whether the turnout beam is switched to a turnout position and outputting a current turnout beam in-place signal after the turnout beam is switched in place;
the locking in-place detection module is formed by connecting a plurality of locking in-place detection units in series, and any one locking in-place detection unit is formed by connecting a plurality of locking in-place small units in series and is used for detecting whether the locking device is locked in place or not and outputting a locking in-place signal after the locking in place;
any one of the position detection unit and the locking-in-place detection small unit at least comprises two groups of normally open contacts, at least one group of normally open contacts is connected in series with the positive electrode of the interface power supply, and at least one group of normally open contacts is connected in series with the negative electrode of the interface power supply;
after the position detection module and the in-position locking detection module detect that the turnout beam is in place and the locking device is locked in place, the position detection module and the in-position locking detection module are switched on to generate a position representing signal, the position representing signal is sent to a signal interface, and the position representing signal is sent to the operation and control center through the signal interface.
The input end of the first checking module is connected to the signal output end of a loop formed by connecting the position detection module and the in-place locking detection module in series, the output end of the first checking module is connected to the signal interface, and the first checking unit is used for acquiring the position representation signal, processing the position representation signal and obtaining a first checking signal;
the operation control center also comprises a second checking module and a comparison module, and the first checking module sends the first checking signal to the comparison module through a signal interface; the operation control center sends the received position representation signal to a second check module, the second check module processes the position representation signal to obtain a second check signal and sends the second check signal to a comparison module, the comparison module compares the first check signal with the second check signal, and if the comparison result meets a preset rule, the operation control center sends the received signal to be correct; if the comparison result does not accord with the preset rule, the signal received by the operation control center is incorrect; the preset rule is a preset logic relationship which represents that the first check signal and the second check signal are still correct after the position representation signal passes through the transmission path.
Compared with the prior art, the invention has the beneficial effects that:
the invention can achieve the following beneficial effects through the position indicating circuit:
1. the turnout position signal indicating circuit has clear logic and simple loop, is beneficial to reducing position indicating signal faults, improves the safety, has few related devices, and improves the reliability of the whole circuit;
2. the turnout position signal indicating circuit is convenient to overhaul, is beneficial to improving the maintenance efficiency, and is beneficial to reducing the cost of the medium-low speed magnetic suspension turnout due to the fact that the number of circuit devices is small and the economical efficiency is good;
3. the turnout position signal indicating circuit can provide a position signal checking function, reduce the probability of acquiring wrong position signals by an operation control center and improve the safety.
Drawings
FIG. 1 is a logic diagram of a position indicating circuit according to an embodiment of the present invention;
fig. 2 is a specific circuit for indicating the positions of medium-low speed magnetic levitation three-throw turnouts.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1, an embodiment of the present invention provides a circuit for indicating a position of a medium-low speed magnetic levitation turnout, including: the device comprises a position detection module and a locking in-place detection module; wherein the content of the first and second substances,
the position detection module and the locking in-place detection module are connected in series in the position representation circuit and are electrically connected with a signal interface for sending position representation signals to the operation control center; the signal interface is a signal interface for connecting the turnout control system with the operation control center system.
The position detection module is formed by connecting a plurality of position limit switches in series and is used for detecting whether the turnout beam is switched to a turnout position and outputting a current turnout beam in-place signal after the turnout beam is switched in place; the position limit switch can be any one of a mechanical limit switch, a photoelectric limit switch, a Hall proximity sensor and the like which meet the requirements.
The locking in-place detection module is formed by connecting a plurality of locking in-place detection units in series, the number of the locking in-place detection units is related to the number of locking devices on the turnout control system, one locking device is at least provided with one locking in-place detection unit, and any one locking in-place detection unit is formed by connecting a plurality of locking in-place limit switches in series and is used for detecting whether the locking device is locked in place or not and outputting a locking in-place signal after the locking in place; the in-place locking limit switch can be any one of a mechanical limit switch, a photoelectric limit switch, a Hall proximity sensor and the like which meets the requirements; the locking device is self-contained in the switch control system and is well known to those skilled in the art.
The arrangement of the position limit switches and the locking position limit switches aims to improve the safety of the turnout position indicating circuit, so that the phenomenon that the whole position indicating circuit fails due to the failure of a single limit switch and unsafe accidents are caused is avoided.
Any position limit switch and the locking-in-place limit switch at least comprise two groups of normally open contacts, at least one group of normally open contacts is connected in series with the anode of the position indication interface power supply, and at least one group of normally open contacts is connected in series with the cathode of the position indication interface power supply; when the turnout beam is switched in place and the locking device is locked in place, the position limit switch and the locking in-place limit switch are closed, and the normally open contact of the position limit switch and the locking in-place limit switch is switched on; when the switch of the turnout beam leaves and the locking device leaves the locking position, the position limit switch and the locking position limit switch are disconnected, and the normally open contact of the position limit switch and the locking position limit switch is disconnected.
After the position detection module and the locking in-place detection module detect that the turnout beam is in place and the locking device is locked in place, the position detection module and the locking in-place detection module are connected, namely a position indicating circuit is connected to generate a position indicating signal, the position indicating signal is sent to a signal interface, and the signal interface sends the position indicating signal to an operation control center.
Furthermore, the position indicating loop further comprises a first checking module, the input end of the first checking module is connected to the signal output end of the loop formed by the position detecting module and the locking in-place detecting module which are connected in series, the output end of the first checking module is connected to the signal interface, and the first checking unit is used for acquiring the position indicating signal of the turnout side, processing and obtaining a first checking signal.
Correspondingly, the operation control center also comprises a second checking module and a comparison module, wherein the first checking module sends the first checking signal to the comparison module through a signal interface; the operation control center sends the received position representation signal to a second check module, the second check module processes the received position representation signal to obtain a second check signal and sends the second check signal to a comparison module, the comparison module compares the first check signal with the second check signal, and if the comparison result meets a preset rule, the operation control center indicates that no error occurs in a signal transmission path, namely the signal received by the operation control center is correct; if the comparison result does not accord with the preset rule, the position indicates that the signal transmission path has errors, namely the signal received by the operation control center has errors; the preset rule is that the preset logic relationship between the first check signal and the second check signal is represented when the position representation signal is still correct after passing through the transmission path.
Further, the first check module and the second check module may be any one of an odd check device, an even check device and an exclusive or check device; the comparison module can be any one of an exclusive-or gate integrated circuit, an and gate integrated circuit, an or gate integrated circuit and the like which meet the requirements.
Specifically, the description is given by taking a three-way switch as an example, where the first check module and the second check module are respectively a first odd checker and a second odd checker:
referring to fig. 2, the position detection module of the medium-low speed magnetic levitation three-throw turnout position indication circuit respectively comprises an L-bit detection module, an N-bit detection module and an R-bit detection module to detect and obtain position signals of the turnout beam switching to different turnouts; the L-bit detection module, the N-bit detection module and the R-bit detection module are all composed of WLQ1 and WLQ2 position limit switches; both the WLQ1 position limit switch and the WLQ2 position limit switch are provided with two groups of normally open contacts 3-4 and 7-8 which act simultaneously; the locking in-place detection module of the position representation circuit comprises a first locking in-place detection unit and a second locking in-place detection unit respectively, wherein the first locking in-place detection unit consists of SJ1Q1 and SJ1Q2 locking in-place limit switches; the second in-place locking detection unit consists of SJ2Q1 and SJ2Q2 two in-place locking limit switches, and each of SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2 is provided with two pairs of normally open contacts 3-4 and 7-8 which act simultaneously; when the turnout beam is switched to the L position, the 3-4 contacts of WLQ1 and WLQ2 and the 3-4 contacts of SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2 are connected in series with the positive pole of the interface power supply, namely the positive pole of the circuit; 7-8 contacts of WLQ1 and WLQ2 and 7-8 contacts of SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2 are connected in series with the negative pole of the interface power supply, namely the negative pole of the circuit; when the turnout beam is switched to the N position, 3-4 contacts of WNQ1 and WNQ2 and 3-4 contacts of SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2 are connected in series with the positive pole of the interface power supply, namely the positive pole of the circuit; the 7-8 contacts of WNQ1 and WNQ2 and the 7-8 contacts of SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2 are connected in series with the negative pole of the interface power supply, namely the negative pole of the circuit; when the turnout beam is switched to the R position, the 3-4 contacts of WRQ1 and WRQ2 and the 3-4 contacts of SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2 are connected in series with the positive pole of the interface power supply, namely the positive pole of the circuit; the 7-8 contacts of WRQ1 and WRQ2 and the 7-8 contacts of SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2 are connected in series with the negative pole of the interface power supply, namely the negative pole of the circuit.
When the turnout beam does not act, the current initial turnout position is assumed to represent that the signal is L position, namely the current turnout beam is at L position and the locking device is locked in position, namely two pairs of normally open contacts 3-4 and 7-8 of the L position limit switches WLQ1 and WLQ2 are switched on; meanwhile, two pairs of normally open contacts 3-4 and 7-8 of limit switches SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2 which are locked in place are switched on; in addition, the position limit switches of the N position and the R position are not touched, so that the two pairs of normally open contacts are not switched on, the L position indicates that the anode and the cathode of the circuit are switched on, and a unique path for indicating that the turnout is currently at the N position is formed.
When the turnout beam is switched to the target turnout position N, namely the turnout beam is at the N position and the locking device is locked in place; specifically, when the turnout beam leaves the L position of the initial turnout position, unlocking enables the locked-in-position limit switches SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2 to cut off the locked-in-position signal, the position limit switches WLQ1 and WLQ2 to cut off the position signal, and meanwhile, the position representation signal of the L position is cut off; after the turnout beam is switched to the N position, triggering N position limit switches WNQ1 and WNQ2, connecting two pairs of normally open contacts 3-4 and 7-8 of WNQ1 and WNQ2, outputting N position signals, locking the locking device in place, triggering and locking the in-place limit switches SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2, connecting two pairs of normally open contacts 3-4 and 7-8 of locking the in-place limit switches SJ1Q1, SJ1Q2, SJ2Q1 and SJ2Q2, and outputting locking in-place signals; the N-bit position limit switch is connected with the locking-in-place limit switch in series to form an N-bit position representation signal, and the N-bit position representation signal is sent to the operation control center.
Meanwhile, after the N bits generate the position indicating signal, the first odd checker collects the position indicating signal, the position indicating signal is processed by a digital logic device in the first odd checker, a first check signal is output, the operation and control center adopts a second odd checker which is the same as the turnout junction side to check after receiving the position indicating signal, a second check signal is generated, then the comparison module compares the first check signal with the second check signal, and if the first check signal and the second check signal are the same, the transmission path of the position indicating signal is free from errors; if the position is different, the position indicates that the signal transmission path is wrong.
If no error occurs in the transmission path, the position of the medium-low speed magnetic suspension turnout indicates that the complete operation of the circuit without fault is completed, and the process shows that the position indicating circuit is combined with the operation and control center, so that the actual position of the current turnout can be monitored and output in real time, and the error in the transmission path is detected; as can be seen from fig. 2, if one set of contacts in any limit switch fails and cannot be disconnected, the other set of normal contacts in the limit switch can disconnect the circuit; if any limit switch fails to break off the two groups of contacts, the other normal limit switch with the same function can break off the circuit, and the structure can ensure that the position indicating circuit of the invention can not output wrong position signals, which is beneficial to improving the safety of the middle and low speed magnetic suspension turnout position indicating circuit.
Similarly, the process of switching to the R position by the turnout beam is the same as the process of switching to the N position, and the embodiment of the invention is not described herein again.
Furthermore, in the figure, Vcc and GND are respectively the positive electrode and the negative electrode of the power supply of the first odd checker, and are connected to the positive electrode and the negative electrode of the interface power supply; interface A, B, C represents signal input ports for the positions of R bit, N bit, and L bit, respectively; the interface OD is a first check signal output port and is used as a signal for comparing with the operation control center; the port EV outputs a check signal of the first check signal.
Similarly, the second odd checker included in the operation control center has the same principle as the first odd checker.
When no position signal exists, the L bit, the N bit and the R bit output low levels, and the first check signal output port OD outputs the low levels and sends the low levels to the signal interface; when an N-bit position indicating signal is generated, the N-bit position signal outputs a high level, L-bit and R-bit signals input a low level, a first check signal output port OD outputs a high level and sends the high level to a signal interface, and a port EV outputs a low level and sends the low level to the signal interface; and the operation control center processes the received position indicating signal through a second odd checker to obtain a second check signal, then the comparison module is used for checking the second check signal, if the output of the output port OD of the second check signal is high level and the output of the EV port is low level, the check is passed, and the fact that the transmission path has no fault with broken line or mixed line property is shown.
Because the output signals of the port OD and the port EV are opposite in logic, one of the second odd check signal OD and the port EV which are sent to the operation control center is always high, namely the logical combination of the OD and the EV signals can only be 10 or 01, which can indicate that the first odd checker has no fault and the signal transmission path has no fault of a broken line or mixed line nature. Where "1" indicates a high level and "0" indicates a low level.
Similarly, the signal combination generated by the OD port and the EV port of the present invention can only appear "10" or "01", and should not appear "00" or "11".
When the signal combination is "00" or "11", an error or a fault is judged according to the signal combination. "00" indicates a failure of the second odd parity checker or a failure of the transmission path in the broken line nature, and "11" indicates a failure of the second odd parity checker or a failure of the transmission path in the mixed line nature.
The power supply of the position indicating circuit is not provided by the turnout control system, but the operation control center for acquiring the position indicating signal provides an uninterrupted power supply through a signal interface, and after the turnout control system has faults such as power failure, the operation control center is not influenced to acquire the turnout position indicating signal, and meanwhile, the power coupling between the turnout control system and the operation control center system is avoided; and the position indicating signal and the first check signal generated after the position indicating circuit is processed are sent to the operation control center through the signal interface.
The invention can achieve the following beneficial effects through the position indicating circuit:
1. the turnout position signal indicating circuit has clear logic and simple loop, is beneficial to reducing indicating faults and improving the safety, and has few related devices, thereby improving the reliability of the whole circuit;
2. the turnout position signal indicating circuit is convenient to overhaul, is beneficial to improving the maintenance efficiency, and is beneficial to reducing the cost of the medium-low speed magnetic suspension turnout due to the fact that the number of circuit devices is small and the economical efficiency is good;
3. the turnout position signal indicating circuit can provide a position signal checking function, reduce the probability of acquiring wrong position signals by an operation control center and improve the safety.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (2)
1. A medium-low speed magnetic levitation turnout position indicating circuit is characterized by comprising: the device comprises a position detection module and a locking in-place detection module; wherein the content of the first and second substances,
the position detection module is connected with the in-place locking detection module in series and is electrically connected with a signal interface for sending a position representation signal to an operation control center;
the position detection module is formed by connecting a plurality of position detection units in series and is used for detecting whether the turnout beam is switched to a turnout position and outputting a current turnout beam in-place signal after the turnout beam is switched in place;
the locking in-place detection module is formed by connecting a plurality of locking in-place detection units in series, and any one locking in-place detection unit is formed by connecting a plurality of locking in-place small units in series and is used for detecting whether the locking device is locked in place or not and outputting a locking in-place signal after the locking in place;
any one of the position detection unit and the locking-in-place detection small unit at least comprises two groups of normally open contacts, at least one group of normally open contacts is connected in series with the positive electrode of the interface power supply, and at least one group of normally open contacts is connected in series with the negative electrode of the interface power supply;
after the position detection module and the in-position locking detection module detect that the turnout beam is in place and the locking device is locked in place, the position detection module and the in-position locking detection module are switched on to generate a position representing signal, the position representing signal is sent to a signal interface, and the position representing signal is sent to the operation and control center through the signal interface.
2. The circuit for indicating the position of the medium-low speed magnetic levitation turnout according to claim 1, further comprising a first checking module, an input end of which is connected to a signal output end of a loop formed by connecting the position detection module and the locked-in-place detection module in series, an output end of the first checking module is connected to the signal interface, and the first checking unit is configured to obtain the position indicating signal, process the position indicating signal, and obtain a first checking signal;
the operation control center also comprises a second checking module and a comparison module, and the first checking module sends the first checking signal to the comparison module through a signal interface; the operation control center sends the received position representation signal to a second check module, the second check module processes the position representation signal to obtain a second check signal and sends the second check signal to a comparison module, the comparison module compares the first check signal with the second check signal, and if the comparison result meets a preset rule, the operation control center sends the received signal to be correct; if the comparison result does not accord with the preset rule, the signal received by the operation control center is incorrect; the preset rule is a preset logic relationship which represents that the first check signal and the second check signal are still correct after the position representation signal passes through the transmission path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527134.0A CN112622981A (en) | 2020-12-22 | 2020-12-22 | Medium-low speed magnetic levitation turnout position indicating circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527134.0A CN112622981A (en) | 2020-12-22 | 2020-12-22 | Medium-low speed magnetic levitation turnout position indicating circuit |
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| CN112622981A true CN112622981A (en) | 2021-04-09 |
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| CN202011527134.0A Pending CN112622981A (en) | 2020-12-22 | 2020-12-22 | Medium-low speed magnetic levitation turnout position indicating circuit |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2112305A1 (en) * | 1992-12-29 | 1994-06-30 | Reinhart Rudershausen | Safety device for a railroad switch |
| CN108032872A (en) * | 2017-12-21 | 2018-05-15 | 重庆华渝重工机电有限公司 | The locking device of cross-saddle single-track traffic entirety turn-out track formula track switch |
| CN208110364U (en) * | 2018-05-15 | 2018-11-16 | 中国铁建重工集团有限公司 | The travel switch combined loop and condition monitoring system of track switch are floated for magnetic |
| CN110406562A (en) * | 2018-04-28 | 2019-11-05 | 比亚迪股份有限公司 | Detect the device and method and switch control system of switch location signal |
| CN110406561A (en) * | 2018-04-28 | 2019-11-05 | 比亚迪股份有限公司 | Switch control system and rail system |
| CN110758461A (en) * | 2018-07-26 | 2020-02-07 | 比亚迪股份有限公司 | Control device for turnout locking mechanism and control system for turnout switch driving mechanism |
| CN112339794A (en) * | 2020-11-30 | 2021-02-09 | 中铁宝桥集团有限公司 | Medium-low speed magnetic levitation turnout position indicating circuit and real-time monitoring method |
| CN214565371U (en) * | 2020-12-22 | 2021-11-02 | 中铁宝桥集团有限公司 | Medium-low speed magnetic levitation turnout position indicating circuit |
-
2020
- 2020-12-22 CN CN202011527134.0A patent/CN112622981A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2112305A1 (en) * | 1992-12-29 | 1994-06-30 | Reinhart Rudershausen | Safety device for a railroad switch |
| CN108032872A (en) * | 2017-12-21 | 2018-05-15 | 重庆华渝重工机电有限公司 | The locking device of cross-saddle single-track traffic entirety turn-out track formula track switch |
| CN110406562A (en) * | 2018-04-28 | 2019-11-05 | 比亚迪股份有限公司 | Detect the device and method and switch control system of switch location signal |
| CN110406561A (en) * | 2018-04-28 | 2019-11-05 | 比亚迪股份有限公司 | Switch control system and rail system |
| CN208110364U (en) * | 2018-05-15 | 2018-11-16 | 中国铁建重工集团有限公司 | The travel switch combined loop and condition monitoring system of track switch are floated for magnetic |
| CN110758461A (en) * | 2018-07-26 | 2020-02-07 | 比亚迪股份有限公司 | Control device for turnout locking mechanism and control system for turnout switch driving mechanism |
| CN112339794A (en) * | 2020-11-30 | 2021-02-09 | 中铁宝桥集团有限公司 | Medium-low speed magnetic levitation turnout position indicating circuit and real-time monitoring method |
| CN214565371U (en) * | 2020-12-22 | 2021-11-02 | 中铁宝桥集团有限公司 | Medium-low speed magnetic levitation turnout position indicating circuit |
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