CN110758462B - Five-way switch position indicating circuit - Google Patents
Five-way switch position indicating circuit Download PDFInfo
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- CN110758462B CN110758462B CN201810846055.2A CN201810846055A CN110758462B CN 110758462 B CN110758462 B CN 110758462B CN 201810846055 A CN201810846055 A CN 201810846055A CN 110758462 B CN110758462 B CN 110758462B
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- relay
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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
- B61L5/102—Controlling electrically
Abstract
The invention provides a five-way switch position indicating circuit, which comprises: and the interlocking module is connected in the current position representation circuit in series and is used for disconnecting the current position representation circuit when a position relay in any position representation circuit except the current position representation circuit acts. The five-opening turnout position indicating circuit can ensure that when any position relay works, other positions indicate that a loop is in a normally open state, and the situation that a plurality of position signals are simultaneously indicated is avoided.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a five-way turnout position indicating circuit.
Background
The switch control circuit is divided into a starting circuit and a display circuit. The starting circuit is a circuit for operating an electric switch machine, and the indicating circuit is a circuit for reflecting the position of a switch in a signal building.
In the related art, the indication circuit of the five-way turnout is that the turnout is in place and locked in place, and then the position relay acts to transmit a position signal. When any position relay works, other positions cannot be guaranteed to indicate that the circuit is in a normally open state, so that the situation that a plurality of position signals simultaneously indicate can occur.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the first purpose of the invention is to provide a five-way switch position indicating circuit, so as to ensure that when any position relay works, other positions indicate that a circuit is in a normally open state, and avoid the situation that a plurality of position signals are simultaneously indicated.
The second purpose of the invention is to provide a five-way turnout control system.
To achieve the above object, a first embodiment of the present invention provides a five-way switch position indicating circuit, including: and the interlocking module is connected in the current position representation circuit in series and is used for disconnecting the current position representation circuit when a position relay in any position representation circuit except the current position representation circuit acts.
According to the five-way fork position indicating circuit provided by the embodiment of the invention, when the position relay in any position indicating circuit except the current position indicating circuit operates, the interlocking module connected in series in the current position indicating circuit controls to disconnect the current position indicating circuit, so that when the five-way fork position indicating circuit can ensure that any position relay works, the other position indicating circuit is in a normally open state, and the situation that a plurality of position signals are simultaneously indicated is avoided.
According to one embodiment of the invention, the interlock module comprises: and normally closed points of the 4 position relays connected in series are in one-to-one correspondence with the position relays in the representation loop except for the current position.
According to one embodiment of the invention, the position representation loop comprises: the switch in-place detection module, the locking in-place detection module and the position relay are connected in series between the positive electrode and the negative electrode of the power supply; the switch in-place detection module is used for detecting whether the turnout is switched in place; the locking in-place detection module is used for detecting whether the turnout is locked in place or not; the switch in-place detection module and the locking in-place detection module are used for switching on the position indication loop after detecting that the switch of the turnout is in place and the turnout is locked in place; and the position relay is used for outputting a position indicating signal when the position indicating circuit is connected.
According to an embodiment of the present invention, the five-way switch position indicating circuit further includes: and the monitoring loop is used for monitoring whether the position relay has faults or not after the position indicating loop is switched on, and switching off the position indicating loop after the position relay has faults.
According to one embodiment of the invention, the monitoring circuit comprises: the normally closed point of the fault detection relay connected in series in the current position representation loop; a coil of a fault detection relay connected in series between the positive and negative poles of the power supply, and the current position represents a normally closed point of the position relay in the circuit.
According to an embodiment of the invention, the monitoring circuit further comprises: a coil of a power-on delay time relay connected in series between the positive electrode and the negative electrode of the power supply and connected with the switch-in-place detection module and the lock-in-place detection module; a normally closed point of the position relay in the fault detection relay and the current position representation loop is connected with a normally open point of an electrifying delay time relay between the anode and the cathode of the power supply in series; and the power-on time delay relay starts timing after the position shows that the loop is switched on, and triggers the normally open point of the power-on time delay relay to be closed when the timing time is equal to a preset time threshold value, wherein the time threshold value is larger than the action time of the position relay in the current position showing loop.
According to an embodiment of the present invention, a difference between the time threshold and the action time is smaller than a preset difference time threshold.
According to one embodiment of the invention, the switch-in-place detection module is a switch-in-place limit switch; and the switch in-place limit switch is closed after detecting that the switch of the turnout is in place.
According to one embodiment of the invention, the locking-in-place detection module is a locking-in-place limit switch; and the locking in-place limit switch is used for closing after the turnout is detected to be locked in place.
In order to achieve the above object, a fifth switch control system according to a second embodiment of the present invention includes a fifth switch position indicating circuit according to the first embodiment of the present invention.
Drawings
FIG. 1 is a schematic diagram of a five-way location indicating circuit according to one embodiment of the present invention;
fig. 2 is a circuit diagram of a five-way switch position indication circuit according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A five-switch position indicating circuit according to an embodiment of the present invention will be described with reference to the drawings.
Fig. 1 is a schematic structural diagram of a five-switch position indicating circuit according to an embodiment of the present invention, and as shown in fig. 1, the five-switch position indicating circuit according to the embodiment of the present invention includes: and the interlocking module 11 is connected in series in the current position representation circuit and is used for disconnecting the current position representation circuit when any position relay in the current position representation circuit except the current position representation circuit acts.
It should be noted that, as can be understood by those skilled in the art, only the position of 1 switch position (i.e., the R2 position) is shown in fig. 1 to indicate the structure of the circuit, and the positions of the other 4 switch positions (i.e., the L2 position, the L1 position, the N position, and the R1 position) indicate the structure of the circuit similarly, and are not described herein again.
In the working process of the five-way turnout position representation circuit, when any position relay in the position representation circuit except the current position representation circuit acts, the interlocking module connected in series in the current position representation circuit controls to disconnect the current position representation circuit, so that the current position signal is not represented any more, therefore, when the five-way turnout position representation circuit can ensure that any position relay works, the other positions represent that the circuit is in a normally open state, and the situation that a plurality of position signals are represented at the same time is avoided.
Fig. 2 is a circuit diagram of a five-way switch position indication circuit according to another embodiment of the present invention. As shown in fig. 2, on the basis of the embodiment shown in fig. 1, the interlock module 11 includes: normally closed points KA _ L2, KA _ L1 and KA _ N, KA _ R1 of the 4 position relays connected in series, and normally closed points KA _ L2, KA _ L1 and KA _ N, KA _ R1 of the 4 position relays correspond to the position relays in the indicating loop in a one-to-one mode except for the current position indicating loop.
Specifically, when any position relay in the position indicating circuit other than the current position indicating circuit is operated, the normally-closed point of the corresponding position relay in the interlock module 11 connected in series in the current position indicating circuit is turned off, so that the current position indicating circuit is turned off, and the current position signal is no longer indicated. For example, when the position of the L2 position indicates that the position relay KA _ L2 in the circuit is actuated, the position signal of the L2 position indicates that the normally closed point KA _ L2 of the position relay connected in series in the current position indicating circuit (i.e., the position of the R2 position indicates the circuit) is opened, thereby opening the current position indicating circuit (i.e., the position of the R2 position indicates the circuit) so that the current position signal (i.e., the R2 position signal) is no longer indicated.
The position representation loop of the embodiment of the invention comprises the following components: a switch-in-place detection module KA1, a locking-in-place detection module KA2 and a position relay KA _ R2 (located on the first row) which are connected in series between the positive electrode and the negative electrode of the power supply; the switch-in-place detection module KA1 is used for detecting whether the turnout is in place; the locking in-place detection module KA2 is used for detecting whether the turnout is locked in place or not; the switch-in-place detection module KA1 and the locking-in-place detection module KA2 are used for indicating a loop at a switch-on position after detecting that the switch of the turnout is in place and the turnout is locked in place; a position relay KA _ R2 (in the first row) outputs a position representative signal when the position is representative of circuit on.
Specifically, the switch-in-place detection module KA1 may be a normally open switch-in-place limit switch, and is closed after detecting that the switch is in place (i.e., switched to the R2 position). The locking in-place detection module KA2 can be a normally open locking in-place limit switch, and is closed after the switch is detected to be locked in place (namely locked to the R2 position). After the switch-in-place detection module KA1 and the lock-in-place detection module KA2 are both closed, the switch-on position represents a loop, the position relay KA _ R2 (located in the first row) is electrified, and a position representation signal is output.
The five-switch position indicating circuit of the embodiment of the invention further comprises: and a monitoring circuit 12, which is used for monitoring whether the position relay KA _ R2 (located in the first row) has a fault after the position indicating circuit is connected, and disconnecting the position indicating circuit after the position relay KA _ R2 (located in the first row) has a fault, so as to realize the monitoring whether the position relay KA _ R2 (located in the first row) has a fault, and disconnecting the position indicating circuit after the position relay KA _ R2 (located in the first row) has a fault, so as to ensure the accurate indication of the position signal.
The monitoring circuit 12 of the embodiment of the present invention includes: the series connection at the current position represents the normally closed point KA _ GZ of the fault detection relay in the circuit (located in the first row); a coil KA _ GZ of the fault detection relay (in the third row) connected in series between the positive and negative poles of the power supply, and a normally closed point KA _ R2 (in the third row) of the position relay whose current position represents the circuit.
The monitoring circuit 12 according to the embodiment of the present invention further includes: a coil KT1 (positioned in the second row) of an electrified delay time relay, which is connected in series with the switch in-place detection module KA1 and the lock in-place detection module KA2 between the positive electrode and the negative electrode of the power supply; a coil KA _ GZ (in the third row) associated with the fault detection relay and a normally closed point KA _ R2 (in the third row) of the position relay whose current position represents the circuit, a normally open point KT1 (in the third row) of the energization time delay relay connected in series between the positive and negative poles of the power supply; and after the position of the electrified time delay relay shows that the loop is switched on, timing is started, and when the timing time is equal to a preset time threshold value, a normally open point of an electrified time delay relay KT1 (located in the second row) is triggered to be closed, wherein the time threshold value is larger than the action time of a position relay KA _ R2 (located in the first row) in the loop.
Specifically, the time threshold value being greater than the current position indicates the action time of the position relay KA _ R2 (located in the first row) in the loop, so as to ensure that the position relay KA _ R2 (located in the first row) has enough time to complete the coil pull-in operation.
Further, the difference between the time threshold and the action time is smaller than a preset difference time threshold.
Specifically, the difference between the time threshold and the action time is smaller than a preset difference time threshold, that is, the time threshold is slightly larger than the action time, so as to ensure timely monitoring of whether the position relay KA _ R2 has a fault.
The five-switch position indicating circuit of the embodiment of fig. 2 operates as follows:
in the process of switching the turnout, when the turnout is transferred to the R2 position, the switch in-place detection module KA1 is closed, and when the turnout is locked in place, the locking in-place detection module KA2 is closed. When the switch-to-position detection module KA1 and the lock-to-position detection module KA2 are closed simultaneously, the position indicates that the circuit is on. The position relay KA _ R2 operates (in the first row), and outputs a position indicating signal. Normally closed points KA _ L2, KA _ L1 and KA _ N, KA _ R1 of 4 position relays connected in series in the interlock module 11 correspond to the position relays in the circuit except for the current position indicating circuit in a one-to-one manner, so when the KA _ R2 acts, the other positions indicate that the circuit is in a normally open state, and the situation that a plurality of position signals are simultaneously indicated can be avoided.
When the position indicates that the circuit is switched on, the coil KT1 (in the second row) of the electrified time delay relay starts to count, when the timing time reaches a preset time threshold, a normally open point KT1 (located in the third row) of the power-on time delay relay is triggered to close, and the coil of the position relay KA _ R2 (located in the first row) is attracted, the normally closed point KA _ R2 (located in the third row) of the position relay is in an off state at the moment, if the normally closed point KA _ R2 (located in the third row) of the position relay is in an on state, indicating that the position relay KA _ R2 (located in the first row) has a relay fault or other position relays act, at the moment, a coil KA _ GZ (located in the third row) of the fault detection relay is electrified, triggering the normally closed point KA _ GZ (located in the first row) of the fault detection relay to be switched off, and therefore the off position indicates a loop, and accurate representation of a position signal is guaranteed.
Based on the above working principle, in the working process of the five-way turnout position representation circuit, when any position relay in the position representation circuit except the current position representation circuit acts, the interlocking module 11 connected in series in the current position representation circuit controls to disconnect the current position representation circuit, so that the current position signal is not represented any more, therefore, when the five-way turnout position representation circuit can ensure that any position relay works, the other position representation circuit is in a normally open state, and the situation that a plurality of position signals are represented at the same time is avoided. And whether the position relay in the current position indicating loop is in fault or not is monitored by the monitoring loop, and the current position indicating loop is disconnected after the position relay is monitored to be in fault, so that accurate indication of a position signal is ensured.
The embodiment of the invention also provides a five-way switch control system which comprises the five-way switch position indicating circuit shown in the embodiment.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. A five-way switch position indicating circuit, comprising:
the interlocking module is connected in the current position representation circuit in series and used for disconnecting the current position representation circuit when any position relay in the position representation circuit except the current position representation circuit acts;
wherein the position representation circuit comprises: the switch in-place detection module, the locking in-place detection module and the position relay are connected in series between the positive electrode and the negative electrode of the power supply;
the switch in-place detection module is used for detecting whether the turnout is switched in place;
the locking in-place detection module is used for detecting whether the turnout is locked in place or not;
the switch in-place detection module and the locking in-place detection module are used for switching on the position indication loop after detecting that the switch of the turnout is in place and the turnout is locked in place;
the position relay is used for outputting a position indicating signal when the position indicating circuit is connected;
the switch-in-place detection module is a switch-in-place limit switch; and the switch in-place limit switch is closed after detecting that the switch of the turnout is in place.
2. The five-way switch position indicating circuit of claim 1, wherein the interlock module comprises: and normally closed points of the 4 position relays connected in series are in one-to-one correspondence with the position relays in the representation loop except for the current position.
3. The five-way switch position indication circuit according to claim 1, further comprising: and the monitoring loop is used for monitoring whether the position relay has faults or not after the position indicating loop is switched on, and switching off the position indicating loop after the position relay has faults.
4. The five-way switch position indicating circuit of claim 3, wherein the monitoring loop comprises:
the normally closed point of the fault detection relay connected in series in the current position representation loop;
a coil of a fault detection relay connected in series between the positive and negative poles of the power supply, and the current position represents a normally closed point of the position relay in the circuit.
5. The five-way switch position indicating circuit of claim 4, wherein the monitoring loop further comprises:
a coil of a power-on delay time relay connected in series between the positive electrode and the negative electrode of the power supply and connected with the switch-in-place detection module and the lock-in-place detection module;
a normally closed point of the position relay in the fault detection relay and the current position representation loop is connected with a normally open point of an electrifying delay time relay between the anode and the cathode of the power supply in series;
and the power-on time delay relay starts timing after the position shows that the loop is switched on, and triggers the normally open point of the power-on time delay relay to be closed when the timing time is equal to a preset time threshold value, wherein the time threshold value is larger than the action time of the position relay in the current position showing loop.
6. The five-way switch position indication circuit according to claim 5, wherein the difference between the time threshold and the action time is smaller than a preset difference time threshold.
7. The five-way switch position indicating circuit according to claim 1, wherein the locking-in-place detection module is a locking-in-place limit switch;
and the locking in-place limit switch is used for closing after the turnout is detected to be locked in place.
8. A five-way switch control system comprising a five-way switch position indicating circuit according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846055.2A CN110758462B (en) | 2018-07-27 | 2018-07-27 | Five-way switch position indicating circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846055.2A CN110758462B (en) | 2018-07-27 | 2018-07-27 | Five-way switch position indicating circuit |
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| CN110758462A CN110758462A (en) | 2020-02-07 |
| CN110758462B true CN110758462B (en) | 2021-04-20 |
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| CN201810846055.2A Active CN110758462B (en) | 2018-07-27 | 2018-07-27 | Five-way switch position indicating circuit |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204567688U (en) * | 2015-02-11 | 2015-08-19 | 中铁第四勘察设计院集团有限公司 | A kind of track switch management system of indoor and outdoor interlocking |
| FR3048669B1 (en) * | 2016-03-08 | 2018-04-13 | Alstom Transport Technologies | SIMPLIFIED INITIATION SYSTEM FOR A CUTTING SECTION |
| CN206589904U (en) * | 2016-12-30 | 2017-10-27 | 比亚迪股份有限公司 | The trouble position information detection systems that clear the way more |
| CN108263428A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | switch control system |
| CN107650946A (en) * | 2017-09-30 | 2018-02-02 | 中铁第四勘察设计院集团有限公司 | A kind of high-precision Riding-type Monorail Switch monitoring system |
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