CN209911779U - Redundant circuit for ZPW-2000A system transmitter - Google Patents
Redundant circuit for ZPW-2000A system transmitter Download PDFInfo
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- CN209911779U CN209911779U CN201920779028.8U CN201920779028U CN209911779U CN 209911779 U CN209911779 U CN 209911779U CN 201920779028 U CN201920779028 U CN 201920779028U CN 209911779 U CN209911779 U CN 209911779U
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Abstract
The utility model relates to a redundant circuit for ZPW-2000A system sender, include main switching relay and be equipped with switching relay, main switching relay includes 10 interfaces respectively with being equipped with switching relay, on the basis of rational utilization relay, logical operation can be accomplished to this circuit to control main, be equipped with the smooth switching of sending the ware, reach "1 + 1" redundancy that the system required. Compared with the prior art, the utility model discloses a send the ware and provide new redundant system, change original "N + 1" into "1 + 1" mode, in "N + 1" redundant mode, when having two and more than the sending ware trouble, only a sending ware is by redundant equipment, and other equipment will not have the switching of redundant equipment to the reliability is lower; when the 1+1 redundancy mode is adopted, one redundancy device can be replaced by each device, and therefore the reliability of the system is enhanced.
Description
Technical Field
The utility model belongs to the technical field of rail transit automated control and specifically relates to a redundant circuit that is used for ZPW-2000A system to send ware is related to.
Background
A column control coding transmitter, ZPW.F-K for short, is an important device in ZPW-2000A series track circuit system, and is mainly used for providing stable frequency shift signals for track circuits. In the column control coding ZPW-2000A system, the existing redundancy mode of the transmitter is usually the 'N + 1' mode in the relay coding ZPW-2000A.
The N +1 mode has the defects of more wiring, more complex wiring, lower system reliability and the like. The column control coding transmitter should adopt a more reliable 1+1 redundancy mode, in the 1+1 redundancy mode, the two machines are all in a hot standby state, only in a host failure mode, the standby machine needs to be switched to, when the host works normally, the standby machine is in a standby state, and when the host recovers from a failure, the system still switches back to the host to work, so as to provide a stable frequency shift signal for the system.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art by providing a redundant circuit for a ZPW-2000A system transmitter.
The purpose of the utility model can be realized through the following technical scheme:
a redundancy circuit for a ZPW-2000A system transmitter, comprising a main switching relay and a standby switching relay, wherein the main switching relay comprises 10 interfaces, respectively: the main transmission alarm relay comprises a main transmission alarm relay positive interface, a first circuit auxiliary node interface, a second circuit auxiliary node interface, a total frequency shift signal output S1 interface, a main transmitter frequency shift signal output ZS1 interface, a main transmission alarm relay negative interface, a third circuit auxiliary node interface, a fourth circuit auxiliary node interface, a total frequency shift signal output S2 interface and a main transmitter frequency shift signal output ZS2 interface; the standby switching relay comprises 10 interfaces which are respectively as follows: the system comprises a spare sending alarm relay positive interface, a fifth circuit auxiliary node interface, a sixth circuit auxiliary node interface, a spare sending device frequency shift signal output BS1 interface, a seventh circuit auxiliary node interface, a spare sending alarm relay negative interface, an eighth circuit auxiliary node interface, a ninth circuit auxiliary node interface, a spare sending device frequency shift signal output BS2 interface and a tenth circuit auxiliary node interface;
the positive interface of the main sending alarm relay and the negative interface of the main sending alarm relay are connected in the main switching relay through a first excitation coil, the positive interface of the standby sending alarm relay and the negative interface of the standby sending alarm relay are connected in the standby switching relay through a second excitation coil, the positive interface of the main sending alarm relay and the negative interface of the main sending alarm relay are respectively connected with a main transmitter, the positive interface of the standby sending alarm relay and the negative interface of the standby sending alarm relay are respectively connected with a standby transmitter, the first circuit auxiliary node interface is connected with a seventh circuit auxiliary node interface, the third circuit auxiliary node interface is connected with a tenth circuit auxiliary node interface, the second circuit auxiliary node interface is connected with a total frequency shift signal output S1 interface, and the fourth circuit auxiliary node interface is connected with a total frequency shift signal output S2 interface, the total frequency shift signal output S1 interface and the total frequency shift signal output S2 interface are respectively connected to a track circuit, the sixth circuit auxiliary node interface is connected with the spare transmitter frequency shift signal output BS1 interface, and the ninth circuit auxiliary node interface is connected with the spare transmitter frequency shift signal output BS2 interface.
Preferably, when the main transmitter normally operates, the contacts inside the main switching relay between the first circuit auxiliary node interface and the second circuit auxiliary node interface and between the third circuit auxiliary node interface and the fourth circuit auxiliary node interface are respectively opened, and the contacts inside the main switching relay between the total frequency shift signal output S1 interface and the main transmitter frequency shift signal output ZS1 interface and between the total frequency shift signal output S2 interface and the main transmitter frequency shift signal output ZS2 interface are respectively closed.
Preferably, when the main transmitter fails, contacts inside the main switching relay between the first circuit auxiliary node interface and the second circuit auxiliary node interface and between the third circuit auxiliary node interface and the fourth circuit auxiliary node interface are respectively closed, contacts inside the main switching relay between the total frequency shift signal output S1 interface and the main transmitter frequency shift signal output ZS1 interface and between the total frequency shift signal output S2 interface and the main transmitter frequency shift signal output ZS2 interface are respectively opened, and contacts inside the backup switching relay between the backup transmitter frequency shift signal output BS1 interface and the seventh circuit auxiliary node interface and between the backup transmitter frequency shift signal output BS2 interface and the tenth circuit auxiliary node interface are respectively closed.
Preferably, the positive interface and the negative interface of the main sending alarm relay are respectively connected with the sending alarm relay driving output end of the main sender.
Preferably, the positive interface of the standby sending alarm relay and the negative interface of the standby sending alarm relay are respectively connected with the sending alarm relay driving output end of the standby sender.
Preferably, the main switching relay and the standby switching relay are arranged in a longitudinal direction.
Preferably, the main switching relay and the standby switching relay are arranged in a protective shell.
Preferably, a transparent cover is arranged on the protective shell.
Compared with the prior art, the utility model has the advantages of it is following:
1. simplifying system wiring: in a ZWP-2000A system of relay coding, the redundancy mode of a transmitter adopts an 'N + 1' redundancy mode, various necessary conditions of the transmitter need to be introduced to a zero layer of a frequency shift cabinet, and switching needs to be realized by a relay, so that excessive wiring and relays appear in the system, and after the redundancy circuit is adopted, the wiring and a plurality of relays with the original necessary conditions are fundamentally deleted, and the wiring of the system is simplified.
2. The reliability of the system is increased: the redundancy circuit aims at providing a new redundancy system for the transmitters, changes the original 'N + 1' mode into a '1 + 1' mode, and in the 'N + 1' redundancy mode, when two or more transmitters have faults, only one transmitter is switched by redundancy equipment, and the rest equipment is switched without the redundancy equipment, so that the reliability is lower; when the 1+1 redundancy mode is adopted, one redundancy device can be replaced by each device, and therefore the reliability of the system is enhanced.
3. The switching is accurate: the redundancy circuit adopts an embedded correlation design for standby equipment, the failure of a host can only be switched to the standby machine, and in an 'N + 1' redundancy system, two devices fail at the same time, and the switched equipment to the standby machine cannot be determined.
4. The design principle of 'failure-safety' is satisfied: the design of railway signal must satisfy the fault direction security, and in this design, when two equipment all were in the fault condition, the relay did not all excite the field, and the contact falls under the effect of mechanical spring force, cuts off two equipment all frequency shift signal output, can not cause the trouble to upgrade.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The figure is marked with: 1. a main sending alarm relay positive interface, 2, a first circuit auxiliary node interface, 3, a second circuit auxiliary node interface, 4, a total frequency shift signal output S1 interface, 5, a main sender frequency shift signal output ZS1 interface, 6, a main sending alarm relay negative interface, 7, a third circuit auxiliary node interface, 8, a fourth circuit auxiliary node interface, 9, a total frequency shift signal output S2 interface, 10, a main sender frequency shift signal output ZS2 interface, 11, a standby sending alarm relay positive interface, 12, a fifth circuit auxiliary node interface, 13, a sixth circuit auxiliary node interface, 14, a standby sender frequency shift signal output BS1 interface, 15, a seventh circuit auxiliary node interface, 16, a standby sending alarm relay negative interface, 17, an eighth circuit auxiliary node interface, 18, a ninth circuit auxiliary node interface, 19, a standby sender frequency shift signal output BS2 interface, 20. a tenth circuit auxiliary node interface, 21, a main switching relay, 22, a first excitation coil, 23, a main transmitter, 24, a standby switching relay, 25, a second excitation coil, 26, a standby transmitter, 27, a track circuit.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
As shown in FIG. 1, the present application proposes a redundancy circuit for a ZPW-2000A system transmitter, which is designed for realizing a "1 + 1" redundancy mode of the transmitter in a column control coded ZPW-2000A system. The redundant circuit includes a main switching relay 21 and a backup switching relay 24. The main switching relay 21 includes 10 interfaces, which are respectively: the main transmitting alarm relay comprises a main transmitting alarm relay positive electrode interface 1, a first circuit auxiliary node interface 2, a second circuit auxiliary node interface 3, a total frequency shift signal output S1 interface 4, a main transmitter frequency shift signal output ZS1 interface 5, a main transmitting alarm relay negative electrode interface 6, a third circuit auxiliary node interface 7, a fourth circuit auxiliary node interface 8, a total frequency shift signal output S2 interface 9 and a main transmitter frequency shift signal output ZS2 interface 10. The standby switching relay 24 includes 10 interfaces, which are respectively: the system comprises a standby sending alarm relay positive electrode interface 11, a fifth circuit auxiliary node interface 12, a sixth circuit auxiliary node interface 13, a standby sending alarm frequency shift signal output BS1 interface 14, a seventh circuit auxiliary node interface 15, a standby sending alarm relay negative electrode interface 16, an eighth circuit auxiliary node interface 17, a ninth circuit auxiliary node interface 18, a standby sending alarm frequency shift signal output BS2 interface 19 and a tenth circuit auxiliary node interface 20.
The main sending alarm relay positive electrode interface 1 and the main sending alarm relay negative electrode interface 6 are connected inside the main switching relay 21 through a first excitation coil 22, and the standby sending alarm relay positive electrode interface 11 and the standby sending alarm relay negative electrode interface 16 are connected inside the standby switching relay 24 through a second excitation coil 25. The main sending alarm relay positive interface 1 and the main sending alarm relay negative interface 6 are respectively connected with a main sender 23, and the standby sending alarm relay positive interface 11 and the standby sending alarm relay negative interface 16 are respectively connected with a standby sender 26. The first circuit auxiliary node interface 2 is connected to the seventh circuit auxiliary node interface 15, and the third circuit auxiliary node interface 7 is connected to the tenth circuit auxiliary node interface 20. The second circuit auxiliary node interface 3 is connected to the total frequency shifted signal output S1 interface 4, and the fourth circuit auxiliary node interface 8 is connected to the total frequency shifted signal output S2 interface 9. The total frequency shift signal output S1 interface 4 and the total frequency shift signal output S2 interface 9 are connected to the track circuit 27, respectively. The sixth circuit auxiliary node interface 13 is connected to the spare transmitter frequency shifted signal output BS1 interface 14 and the ninth circuit auxiliary node interface 18 is connected to the spare transmitter frequency shifted signal output BS2 interface 19.
The positive electrode interface 1 of the main sending alarm relay and the negative electrode interface 6 of the main sending alarm relay are respectively connected with the sending alarm relay driving output end of the main sender 23. The positive interface 11 of the standby sending alarm relay and the negative interface 16 of the standby sending alarm relay are respectively connected with the driving output end of the sending alarm relay of the standby sender 26.
When the main transmitter 23 normally works, the transmission alarm relay driving output end of the main transmitter 23 provides 24V voltage, the excitation of the main switching relay 21 is attracted, the contacts inside the main switching relay 21 between the first circuit auxiliary node interface 2 and the second circuit auxiliary node interface 3 and between the third circuit auxiliary node interface 7 and the fourth circuit auxiliary node interface 8 are respectively opened, and the contacts inside the main switching relay 21 between the total frequency shift signal output S1 interface 4 and the main transmitter frequency shift signal output ZS1 interface 5 and between the total frequency shift signal output S2 interface 9 and the main transmitter frequency shift signal output ZS2 interface 10 are respectively closed. At this time, the frequency shift signal required by the track circuit 27 is output from the main transmitter 23 to the main transmitter frequency shift signal output ZS1 interface 5 and the main transmitter frequency shift signal output ZS2 interface 10 of the main switching relay 21, and then output from the total frequency shift signal output S1 interface 4 and the total frequency shift signal output S2 interface 9 terminals to the track circuit 27, respectively.
If the main transmitter 23 fails, the output end of the transmission alarm relay of the main transmitter 23 has no voltage output, the main switching relay 21 is excited to fall, contacts inside the main switching relay 21 between the first circuit auxiliary node interface 2 and the second circuit auxiliary node interface 3 and between the third circuit auxiliary node interface 7 and the fourth circuit auxiliary node interface 8 are respectively closed, and contacts inside the main switching relay 21 between the total frequency shift signal output S1 interface 4 and the main transmitter frequency shift signal output ZS1 interface 5 and between the total frequency shift signal output S2 interface 9 and the main transmitter frequency shift signal output ZS2 interface 10 are respectively opened. At this time, the backup switching relay 24 of the backup transmitter 26 is still excited, and the contacts inside the backup switching relay 24 between the backup transmitter frequency shift signal output BS1 interface 14 and the seventh circuit auxiliary node interface 15 and between the backup transmitter frequency shift signal output BS2 interface 19 and the tenth circuit auxiliary node interface 20 are closed, respectively. The frequency shift signal of the backup transmitter 26 is input through the backup transmitter frequency shift signal output BS1 interface 14 and the backup transmitter frequency shift signal output BS2 terminal, then respectively through the seventh circuit auxiliary node interface 15 and the tenth circuit auxiliary node interface 20 terminal, and then through a loop from the contacts of the first circuit auxiliary node interface 2 and the second circuit auxiliary node interface 3 of the main switching relay 21 to the total frequency shift signal output S1 interface 4, from the contacts of the third circuit auxiliary node interface 7 and the fourth circuit auxiliary node interface 8 to the total frequency shift signal output S2 interface 9, and finally output to the track circuit 27.
If the fault of the main transmitter 23 is recovered, the main switching relay 21 is excited, the contacts in the main switching relay 21 between the first circuit auxiliary node interface 2 and the second circuit auxiliary node interface 3 and between the third circuit auxiliary node interface 7 and the fourth circuit auxiliary node interface 8 are respectively disconnected, the frequency shift signal output of the standby switching relay 24 is cut off, and the main switching relay 21 is switched again to output the frequency shift signal.
In this embodiment, the main switching relay 21 and the backup switching relay 24 are arranged in a vertical direction. The main switching relay 21 and the standby switching relay 24 are provided in a protective case. Be equipped with the translucent cover on the protective housing, conveniently observe the state of circuit in the protective housing.
Claims (8)
1. A redundant circuit for a ZPW-2000A system transmitter is characterized by comprising a main switching relay and a standby switching relay, wherein the main switching relay comprises 10 interfaces which are respectively: the main transmission alarm relay comprises a main transmission alarm relay positive interface, a first circuit auxiliary node interface, a second circuit auxiliary node interface, a total frequency shift signal output S1 interface, a main transmitter frequency shift signal output ZS1 interface, a main transmission alarm relay negative interface, a third circuit auxiliary node interface, a fourth circuit auxiliary node interface, a total frequency shift signal output S2 interface and a main transmitter frequency shift signal output ZS2 interface; the standby switching relay comprises 10 interfaces which are respectively as follows: the system comprises a spare sending alarm relay positive interface, a fifth circuit auxiliary node interface, a sixth circuit auxiliary node interface, a spare sending device frequency shift signal output BS1 interface, a seventh circuit auxiliary node interface, a spare sending alarm relay negative interface, an eighth circuit auxiliary node interface, a ninth circuit auxiliary node interface, a spare sending device frequency shift signal output BS2 interface and a tenth circuit auxiliary node interface;
the positive interface of the main sending alarm relay and the negative interface of the main sending alarm relay are connected in the main switching relay through a first excitation coil, the positive interface of the standby sending alarm relay and the negative interface of the standby sending alarm relay are connected in the standby switching relay through a second excitation coil, the positive interface of the main sending alarm relay and the negative interface of the main sending alarm relay are respectively connected with a main transmitter, the positive interface of the standby sending alarm relay and the negative interface of the standby sending alarm relay are respectively connected with a standby transmitter, the first circuit auxiliary node interface is connected with a seventh circuit auxiliary node interface, the third circuit auxiliary node interface is connected with a tenth circuit auxiliary node interface, the second circuit auxiliary node interface is connected with a total frequency shift signal output S1 interface, and the fourth circuit auxiliary node interface is connected with a total frequency shift signal output S2 interface, the total frequency shift signal output S1 interface and the total frequency shift signal output S2 interface are respectively connected to a track circuit, the sixth circuit auxiliary node interface is connected with the spare transmitter frequency shift signal output BS1 interface, and the ninth circuit auxiliary node interface is connected with the spare transmitter frequency shift signal output BS2 interface.
2. The redundancy circuit for a ZPW-2000A system transmitter in accordance with claim 1, wherein during normal operation of the main transmitter, the contacts within the main switching relay between the first circuit auxiliary node interface and the second circuit auxiliary node interface and between the third circuit auxiliary node interface and the fourth circuit auxiliary node interface are open, respectively, and the contacts within the main switching relay between the total frequency shifted signal output S1 interface and the main transmitter frequency shifted signal output ZS1 interface and between the total frequency shifted signal output S2 interface and the main transmitter frequency shifted signal output ZS2 interface are closed, respectively.
3. A redundancy circuit for a ZPW-2000A system transmitter in accordance with claim 2, characterized in that, when the main transmitter fails, contacts inside the main switching relay between the first circuit auxiliary node interface and the second circuit auxiliary node interface and between the third circuit auxiliary node interface and the fourth circuit auxiliary node interface are respectively closed, and the contacts inside the main switching relay between the interface of the total frequency shift signal output S1 and the interface of the main transmitter frequency shift signal output ZS1 and between the interface of the total frequency shift signal output S2 and the interface of the main transmitter frequency shift signal output ZS2 are respectively opened, contacts inside the standby switching relay between the standby transmitter frequency shift signal output BS1 interface and the seventh circuit auxiliary node interface and between the standby transmitter frequency shift signal output BS2 interface and the tenth circuit auxiliary node interface are respectively closed.
4. A redundancy circuit for a ZPW-2000A system transmitter in accordance with claim 1, wherein the main transmission alarm relay positive interface and the main transmission alarm relay negative interface are connected to the transmission alarm relay drive output of the main transmitter, respectively.
5. A redundancy circuit for a ZPW-2000A system transmitter in accordance with claim 1, wherein the positive port of the standby transmission alarm relay and the negative port of the standby transmission alarm relay are connected to the transmission alarm relay drive output of the standby transmitter, respectively.
6. A redundancy circuit for a ZPW-2000A system transmitter in accordance with claim 1, wherein the main switching relay and the standby switching relay are arranged in a vertical row.
7. A redundancy circuit for a ZPW-2000A system transmitter in accordance with claim 1, wherein the main switching relay and the standby switching relay are provided in a protective case.
8. A redundancy circuit for a ZPW-2000A system transmitter in accordance with claim 7, wherein the protective casing is provided with a transparent cover.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920779028.8U CN209911779U (en) | 2019-05-27 | 2019-05-27 | Redundant circuit for ZPW-2000A system transmitter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920779028.8U CN209911779U (en) | 2019-05-27 | 2019-05-27 | Redundant circuit for ZPW-2000A system transmitter |
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| CN209911779U true CN209911779U (en) | 2020-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113256947A (en) * | 2021-06-22 | 2021-08-13 | 江西师范大学 | Alarm device for preventing articles from being lost |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113256947A (en) * | 2021-06-22 | 2021-08-13 | 江西师范大学 | Alarm device for preventing articles from being lost |
| CN113256947B (en) * | 2021-06-22 | 2023-11-10 | 江西师范大学 | Alarm device for preventing articles from losing |
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