CN113859301B - Position state acquisition circuit of five-wire alternating current switch machine - Google Patents
Position state acquisition circuit of five-wire alternating current switch machine Download PDFInfo
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- CN113859301B CN113859301B CN202111190730.9A CN202111190730A CN113859301B CN 113859301 B CN113859301 B CN 113859301B CN 202111190730 A CN202111190730 A CN 202111190730A CN 113859301 B CN113859301 B CN 113859301B
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- acquisition circuit
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- safety relay
- alternating current
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- 230000005484 gravity Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
- B61L5/062—Wiring diagrams
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Keying Circuit Devices (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a position state acquisition circuit of a five-wire alternating current switch machine, which is connected with an interface of the five-wire alternating current switch machine and comprises the following components: a representation transformer for providing an ac signal source; the first acquisition circuit and the second acquisition circuit are connected with the representation transformer and are used for acquiring position state signals of the switch machine; a first safety relay connected to the first acquisition circuit; a second safety relay connecting the second acquisition circuit and an interface of the five-wire ac switch machine; the interface is connected with the first safety relay and the five-wire alternating current switch machine, and is used for a first rectifying diode and a second rectifying diode for half-wave rectification of an alternating current signal source; and the central processing unit is connected with the first acquisition circuit and the second acquisition circuit and is used for processing the position state signals of the switch machine. The invention reduces faults and improves the reliability of position acquisition.
Description
Technical Field
The invention relates to a position state acquisition circuit of a five-wire alternating current switch machine.
Background
The five-wire alternating current switch machine is an important device in an interlocking system in the field of rail transit, and needs to be driven safely and reliably and the position state is acquired. The current China is 6502 electric centralized relay interlocking mode, the main circuit components are gravity relays, the wiring is complex, and the occupied area is large. When a fault occurs, fault localization is difficult. 6502 electric centralized relay interlocking mode, wherein the switch position state acquisition is divided into positioning acquisition and inversion acquisition.
Fig. 2 is a circuit diagram of a switch machine positioning and collecting:
1) Current flow direction of a positive half cycle circuit of a power supply in a point switch positioning and collecting circuit:
Representing the transformer BD1-10 terminal 3- & gtresistor R1- & gtgravity relay 1DQJ 22-21- & gtgravity relay 2DQJ 131-132- & gtgravity relay 1DQJF 13-11- & gtgravity relay 2DQJ 111-112- & gtswitch contact 31-32- & gtswitch contact 15-16- & gtrectifier diode Z- & gtpower resistor R- & gtswitch contact 33-34- & gtmotor coil U1-U2- & gtmotor coil W1-W2- & gtgravity relay 1DQJ 11-13- & gtrepresenting the transformer BD1-10 terminal 4.
2) Current flow direction of a power supply negative half cycle circuit in a point switch positioning and collecting circuit:
The terminal 3 of the transformer BD1-10 is represented by the following formula, the resistor R1, the gravity relay 1DQJ 22-21, the gravity relay 2DQJ 131-132, the gravity relay DBJ 4-1, the point switch contact 11-12, the motor coil V1-V2, the motor coil W1-W2, the gravity relay 1DQJ 11-13 and the terminal 4 of the transformer BD1-10 are represented by the following formula.
Fig. 3 is a circuit diagram of the switch machine inversion acquisition:
1) The current flow direction of the power supply negative half cycle circuit in the switch machine inversion acquisition circuit is as follows:
The transformer BD1-10 terminal 3, the resistor R1, the gravity relay 1DQJ 22-21, the gravity relay 2DQJ 131-133, the gravity relay 1DQJF 23-21, the gravity relay 2DQJ 121-123, the switch contact 21-22, the switch contact 45-46, the power resistor R, the rectifier diode Z, the switch contact 23-24, the motor coil U1-U2, the motor coil W1-W2, the gravity relay 1DQJ 11-13 and the transformer BD1-10 terminal 4.
2) The current flow direction of the positive half cycle circuit of the power supply in the switch machine flip-bit acquisition circuit is as follows:
The terminal 3 of the transformer BD1-10 is represented by the following formula, the resistor R1, the gravity relay 1DQJ 22-21, the gravity relay 2DQJ 131-133, the gravity relay FBJ 1-4, the switch contact 41-42, the motor coil V1-V2, the motor coil W1-W2, the gravity relay 1DQJ 11-13 and the terminal 4 of the transformer BD1-10 are represented by the following formula.
The current switch machine position acquisition circuit can acquire the position state of the switch machine, but due to a large number of relay equipment and wiring, faults are easy to occur, and the running safety and the transportation efficiency of rail transit are affected.
Disclosure of Invention
The invention aims to provide a position state acquisition circuit of a five-wire alternating current switch machine, which reduces faults and improves the reliability of position acquisition.
The technical scheme for achieving the purpose is as follows:
A five-wire ac switch machine position status acquisition circuit, an interface for connecting a five-wire ac switch machine, comprising:
A representation transformer for providing an ac signal source;
The first acquisition circuit and the second acquisition circuit are connected with the representation transformer and are used for acquiring position state signals of the switch machine;
a first safety relay connected to the first acquisition circuit;
A second safety relay connecting the second acquisition circuit and an interface of the five-wire ac switch machine;
The interface is connected with the first safety relay and the five-wire alternating current switch machine, and is used for a first rectifying diode and a second rectifying diode for half-wave rectification of an alternating current signal source;
And the central processing unit is connected with the first acquisition circuit and the second acquisition circuit and is used for processing the position state signals of the switch machine.
Preferably, the interface of the five-wire ac switch machine includes first to fifth interfaces.
Preferably, the primary two ends of the representation transformer are connected with an alternating current signal source;
the secondary first end of the representation transformer is connected with the first acquisition circuit, and the secondary second end of the representation transformer is connected with the first interface.
Preferably, a first node of the first safety relay is connected with the first acquisition circuit, a second node of the first safety relay is connected with an anode of the first rectifying diode, and a third node of the first safety relay is connected with a cathode of the second rectifying diode;
the cathode of the first rectifying diode is connected with a fifth interface;
the anode of the second rectifying diode is connected with a fourth interface;
And a first node of the second safety relay is connected with the second acquisition circuit, a second node of the second safety relay is connected with a third interface, and the third node of the second safety relay is connected with the second interface.
The beneficial effects of the invention are as follows: the invention adopts an effective design, improves the reliability of position acquisition on the basis of being compatible with the original design structure, reduces faults and ensures the driving safety of the railway vehicle. The invention adopts the full electronic integrated circuit board, has small whole volume, convenient and reliable installation, low price and higher economic value. Is compatible with the existing five-wire alternating current switch machine interface, and is convenient to upgrade. The acquired signals are processed by digital signals, so that the method is quick and stable and has higher reliability.
Drawings
FIG. 1 is a circuit diagram of a position state acquisition circuit for a five-wire AC switch machine of the present invention;
FIG. 2 is a circuit diagram of a prior art switch machine positioning acquisition circuit;
Fig. 3 is a circuit diagram of a prior art switch machine inversion acquisition circuit.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the position status acquisition circuit of the five-wire ac switch machine of the present invention, which is connected to an interface of the five-wire ac switch machine, comprises: the transformer T1, the first acquisition circuit AC1, the second acquisition circuit AC2, the first safety relay SR1, the second safety relay SR2, the first rectifier diode Z1, the second rectifier diode Z2, and a Central Processing Unit (CPU) are shown.
Transformer T1 is shown for providing an ac signal source. The first acquisition circuit AC1 and the second acquisition circuit AC2 are connected with the representation transformer T1 and are used for acquiring position and state signals of the switch machine.
The first safety relay SR1 is connected to the first acquisition circuit. The second safety relay SR2 connects the second acquisition circuit AC2 with the interface of the five-wire AC switch. The first safety relay SR1 and the second safety relay SR2 are used for switching the acquisition loop.
The first rectifying diode Z1 and the second rectifying diode Z2 are connected with the first safety relay SR1 and an interface of the five-wire alternating current switch machine and are used for half-wave rectification of an alternating current signal source.
The central processing unit is connected with the first acquisition circuit AC1 and the second acquisition circuit AC2 and is used for processing the switch machine position state signals.
The interface of the five-wire ac switch machine includes first to fifth interfaces X1 to X5.
The primary ends (1, 2 ends) of transformer T1 are shown connected to AC signal sources AC220V L and AC220V N. The secondary first end (3 end) of the transformer T1 is connected to the first acquisition circuit AC1, and the secondary second end (4 end) is connected to the first interface X1.
The first node of the first safety relay SR1 is connected with the first acquisition circuit AC1, the second node is connected with the anode of the first rectifying diode Z1, and the third node is connected with the cathode of the second rectifying diode Z2. The cathode of the first rectifying diode Z1 is connected to the fifth interface X5. The anode of the second rectifying diode Z2 is connected to the fourth interface X4. The first node of the second safety relay SR2 is connected with the second acquisition circuit AC2, the second node is connected with the third interface X3, and the third node is connected with the second interface X2.
And (3) a point machine positioning and collecting loop:
1) Current flow direction of a positive half cycle circuit of a power supply in a point switch positioning and collecting circuit:
Representing the secondary first end (3 ends) of the transformer T1, the second acquisition circuit AC2, the first to third nodes (1-3) of the second safety relay SR2, the second interface X2, the switch contacts 31-32, the switch contacts 15-16, the rectifier diode Z3, the power resistor R, the switch contacts 33-34, the motor coil U1-U2, the motor coil W1-W2, the first interface X1, representing the secondary second end (4 ends) of the transformer T1.
2) Current flow direction of a power supply negative half cycle circuit in a point switch positioning and collecting circuit:
representing the secondary first end (3 ends) of the transformer T1, the first acquisition circuit AC1, the nodes from the first node to the third node (1-3) of the first safety relay SR1, the second rectifier diode Z2, the fourth interface X4, the point switch contact 11-12, the motor coil V1-V2, the motor coil W1-W2, the interface X1 and the second end (4 ends) of the transformer T1.
3) The second acquisition circuit AC2 acquires positive half-cycle signals and sends the positive half-cycle signals to the CPU, and the first acquisition circuit AC1 acquires negative half-cycle signals and sends the negative half-cycle signals to the CPU. And after receiving the two correct signals, the CPU judges that the switch machine is positioned.
And a switch machine inversion acquisition loop:
1) The current flow direction of the power supply negative half cycle circuit in the switch machine inversion acquisition circuit is as follows:
Representing the transformer T1 secondary first end (3 ends), the second acquisition circuit AC2, the first to second nodes (1-2) of the second safety relay SR2, the third interface X3, the switch contacts 21-22, the switch contacts 45-46, the power resistor R, the rectifier diode Z3, the switch contacts 23-24, the motor coil U1-U2, the motor coil W1-W2, the interface X1, representing the transformer T1 secondary second end (4 ends).
2) The current flow direction of the positive half cycle circuit of the power supply in the switch machine flip-bit acquisition circuit is as follows:
Representing the secondary first end (3 ends) of the transformer T1, the first acquisition circuit AC1, the first node to second node (1-2) of the first safety relay SR1, the first rectifier diode z1, the fifth interface x5, the switch contact 41-42, the motor coil V1-V2, the motor coil W1-W2, the interface x1, representing the secondary second end (4 ends) of the transformer T1.
3) The second acquisition circuit AC2 acquires a negative half-cycle signal and sends the negative half-cycle signal to the CPU, and the first acquisition circuit AC1 acquires a positive half-cycle signal and sends the positive half-cycle signal to the CPU. And after receiving the two correct signals, the CPU judges that the switch machine is positioned.
The above embodiments are provided for illustrating the present invention and not for limiting the present invention, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the present invention, and thus all equivalent technical solutions should be defined by the claims.
Claims (1)
1. A five-wire ac switch machine position state acquisition circuit connected to an interface of a five-wire ac switch machine, comprising:
A representation transformer for providing an ac signal source;
The first acquisition circuit and the second acquisition circuit are connected with the representation transformer and are used for acquiring position state signals of the switch machine;
a first safety relay connected to the first acquisition circuit;
A second safety relay connecting the second acquisition circuit and an interface of the five-wire ac switch machine;
The interface is connected with the first safety relay and the five-wire alternating current switch machine, and is used for a first rectifying diode and a second rectifying diode for half-wave rectification of an alternating current signal source;
The central processing unit is connected with the first acquisition circuit and the second acquisition circuit and is used for processing the position state signals of the switch machine;
Wherein the interfaces of the five-wire alternating current switch machine comprise first to fifth interfaces;
the primary two ends of the representation transformer are connected with an alternating current signal source;
The secondary first end of the representation transformer is connected with the first acquisition circuit, and the secondary second end of the representation transformer is connected with the first interface;
A first node of the first safety relay is connected with the first acquisition circuit, a second node of the first safety relay is connected with the anode of the first rectifying diode, and a third node of the first safety relay is connected with the cathode of the second rectifying diode;
the cathode of the first rectifying diode is connected with a fifth interface;
the anode of the second rectifying diode is connected with a fourth interface;
And a first node of the second safety relay is connected with the second acquisition circuit, a second node of the second safety relay is connected with a third interface, and the third node of the second safety relay is connected with the second interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111190730.9A CN113859301B (en) | 2021-10-13 | 2021-10-13 | Position state acquisition circuit of five-wire alternating current switch machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111190730.9A CN113859301B (en) | 2021-10-13 | 2021-10-13 | Position state acquisition circuit of five-wire alternating current switch machine |
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| CN113859301A CN113859301A (en) | 2021-12-31 |
| CN113859301B true CN113859301B (en) | 2024-04-19 |
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| CN111409668A (en) * | 2020-04-10 | 2020-07-14 | 武汉特里技术开发有限公司 | Switch control system |
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2021
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