CN114013473A - Position indicating circuit, device and detection method for turnout control - Google Patents
Position indicating circuit, device and detection method for turnout control Download PDFInfo
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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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Abstract
The embodiment of the application discloses a circuit, a device and a detection method for indicating the position of turnout control, wherein the circuit comprises: a switch K3-1 connected to pin 3 representing the secondary side of the transformer; the auxiliary acquisition circuit is connected with one end of the switch K3-1 and the other end of the auxiliary acquisition circuit is connected with one end of the switch K2-1, and comprises two branches which are connected in parallel, wherein each branch is provided with a first acquisition unit and a first conduction unit, and the conduction directions of the first conduction units on the two branches are opposite; one end of the switch K3-2 is connected with the other end of the switch K2-1, and the other end is connected with the point switch; the main acquisition circuit comprises a second acquisition unit and a second conduction unit, wherein the conduction direction of the second conduction unit is determined according to a binding post of a point switch connected with the second acquisition unit; switch K2-2 has one end connected to pin 4, which represents the secondary side of the transformer, and the other end connected to the switch.
Description
Technical Field
The present disclosure relates to the field of information processing, and more particularly, to a circuit, an apparatus and a method for indicating a location of a switch control.
Background
A6502 electric centralized circuit is used for the switch control of the computer interlocking system, and the external equipment controls the outdoor equipment to act by controlling the coil of the gravity type safety relay to suck or fall, so that the real position state information of the switch machine equipment is obtained by the same representation of the contact state of the relay.
In the conventional computer interlocking system, whether the turnout operation is executed or the position state information of the switch machine is obtained, the corresponding gravity type relay is driven and collected. When the gravity relay is used as a medium for control, the gravity relay is difficult to maintain due to large volume, occupied area and workload of wiring.
Disclosure of Invention
In order to solve any one of the above technical problems, embodiments of the present application provide a position indicating circuit, a position indicating device, and a detecting method for turnout control.
To achieve the purpose of the embodiments of the present application, the embodiments of the present application provide a position indicating circuit for a switch control, including:
a switch K3-1 connected to pin 3 representing the secondary side of the transformer;
the auxiliary acquisition circuit is connected with one end of the switch K3-1 and the other end of the auxiliary acquisition circuit is connected with one end of the switch K2-1, and comprises two branches which are connected in parallel, wherein each branch is provided with a first acquisition unit and a first conduction unit, and the conduction directions of the first conduction units on the two branches are opposite;
one end of the switch K3-2 is connected with the other end of the switch K2-1, and the other end is connected with the point switch;
the main acquisition circuit is connected with one end of the auxiliary acquisition circuit, the other end of the auxiliary acquisition circuit is connected with the switch machine, and the main acquisition circuit comprises a second acquisition unit and a second conduction unit, wherein the conduction direction of the second conduction unit is determined according to a binding post of the switch machine;
one end of a switch K2-2 is connected with a 4 th base pin representing the secondary side of the transformer, and the other end is connected with a point switch;
the switches K2-1, K2-2, K3-1 and K3-2 are all provided with normally open contacts and normally closed contacts.
A switch-controlled position indicating device comprising:
represents a transformer;
the positions described above represent circuits C1, C2, in which:
the main acquisition circuit, the switch K3-2 and the switch K2-2 of the position indication circuit C1 are sequentially connected with binding posts X4, X2 and X1 of the switch; the conduction direction of the second conduction unit is from the wiring terminal X4 to the auxiliary acquisition circuit;
the main acquisition circuit, the switch K3-2 and the switch K2-2 of the position indication circuit C2 are sequentially connected with binding posts X5, X3 and X1 of the switch; the conduction direction of the second conduction unit is from the auxiliary acquisition circuit to the binding post X5.
A method of detection using the apparatus described above, comprising:
controlling the power-on states of the switches K2-1, K2-2, K3-1 and K3-2 to enable the switch machine to be in a positioning or reverse state;
acquiring acquisition results of a first acquisition unit and a second acquisition unit;
and determining the position representation state of the switch machine according to the acquisition result.
One of the above technical solutions has the following advantages or beneficial effects:
the switch machine is provided with two acquisition circuits, 3 signals are acquired respectively to be used for determining the position representing state, and the corresponding conduction unit is arranged to acquire the signals connected to the circuit of the binding post of the switch machine, so that the position representing state can be more accurately obtained.
Additional features and advantages of the embodiments of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the application. The objectives and other advantages of the embodiments of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and together with the examples of the embodiments of the present application do not constitute a limitation of the embodiments of the present application.
Fig. 1 is a schematic view of an ac switch machine driving system according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a position indicating circuit for a switch control provided by an embodiment of the present application;
fig. 3 is a flowchart of a method for detecting with the above apparatus according to an embodiment of the present application;
FIG. 4(a) is a schematic diagram of a positioning representation acquisition circuit provided in an embodiment of the present application;
FIG. 4(b) is a schematic diagram of the acquisition results of the circuit of FIG. 4 (a);
FIG. 5(a) is a schematic diagram of an inversion representation acquisition circuit provided in an embodiment of the present application;
fig. 5(b) is a schematic diagram of the acquisition result of the circuit shown in fig. 5 (a).
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the embodiments of the present application, features in the embodiments and the examples may be arbitrarily combined with each other without conflict.
Fig. 1 is a schematic view of an ac switch machine driving system according to an embodiment of the present application. As shown in fig. 1, the system is mainly composed of 3 switch units and sensors; wherein:
the first switch unit is used as a power switch to realize the connection and disconnection of an alternating current 380VAC power supply;
the second switch unit is used for realizing the logical control of the operation of the switch machine and is used for controlling and executing the representation function or the positioning function;
the third switch unit is used for determining the timing sequence of the AC power source accessed to the switch machine to determine whether the switch machine is in positioning operation or reverse operation;
the sensor is used for acquiring the three-phase current value of the switch machine.
In the embodiment of the present application, the second switch unit includes a switch K2-1 and a switch K2-2; the third switching unit includes a switch K3-1 and a switch K3-2.
Fig. 2 is a schematic diagram of a position indication circuit of the switch control provided by the embodiment of the application. As shown in fig. 2, includes:
a switch K3-1 connected to pin 3 representing the secondary side of the transformer;
the auxiliary acquisition circuit is connected with one end of the switch K3-1 and the other end of the auxiliary acquisition circuit is connected with one end of the switch K2-1, and comprises two branches which are connected in parallel, wherein each branch is provided with a first acquisition unit and a first conduction unit, and the conduction directions of the first conduction units on the two branches are opposite;
one end of the switch K3-2 is connected with the other end of the switch K2-1, and the other end is connected with the point switch;
the main acquisition circuit is connected with one end of the indicating diode, the other end of the indicating diode is connected with the point switch, and the main acquisition circuit comprises a second acquisition unit and a second conduction unit, wherein the conduction direction of the second conduction unit is determined according to a binding post of the point switch;
one end of a switch K2-2 is connected with a 4 th base pin representing the secondary side of the transformer, and the other end is connected with a point switch;
the switches K2-1, K2-2, K3-1 and K3-2 are all provided with normally open contacts and normally closed contacts.
The device that this application embodiment provided is provided with two acquisition circuit, realizes the collection to 3 signals to be used for confirming the position and shows the state, and through setting up the unit that switches on that corresponds, realize the signal acquisition of connection on the circuit of the terminal of goat, so that the more accurate position shows the state.
Optionally, the circuit further includes:
and one end of the resistor R1 is connected with the switch K3-1, and the other end of the resistor R1 is connected with the auxiliary acquisition circuit.
The resistor R1 is used for controlling the current of the main circuit in the circuit, so that the current in the circuit is ensured to be in a reasonable range, and circuit faults caused by overlarge current in the auxiliary acquisition circuit are avoided.
In one exemplary embodiment, the circuit further comprises:
and one end of the resistor R2 is connected with one end of the main acquisition circuit, and the other end of the resistor R2 is connected with the other end of the main acquisition circuit.
The resistor R2 is used for shunting the main circuit current, so that the current in the circuit is ensured to be in a reasonable range, the current flowing through the main acquisition circuit is reduced, and circuit faults caused by overlarge current in the main acquisition circuit are avoided.
In one exemplary embodiment, the circuit further comprises:
and one end of the third conduction unit is connected with the other end of the auxiliary acquisition circuit, the other end of the third conduction unit is connected with one end of the main acquisition circuit, and the conduction direction of the third conduction unit is the same as that of the second conduction unit.
The third conduction unit may be a rectifier diode.
After the resistor R2 is arranged, the third conducting unit is used for limiting the current direction, and circuit faults caused by direct conduction of current through the resistor R2 are avoided.
The position of switch control that this application embodiment provided shows device includes:
represents a transformer;
the positions described above represent circuits C1, C2, in which:
the main acquisition circuit, the switch K3-2 and the switch K2-2 of the position indication circuit C1 are sequentially connected with binding posts X4, X2 and X1 of the switch; the second conduction unit is guided from the wiring terminal X4 to the auxiliary acquisition circuit;
the main acquisition circuit, the switch K3-2 and the switch K2-2 of the position indication circuit C2 are sequentially connected with binding posts X5, X3 and X1 of the switch; the second pass unit is directed from the auxiliary acquisition circuit to terminal X5.
If the third conducting unit is a rectifier diode, the conducting direction of the rectifier diode is that the anode is connected with the second conducting unit in the position representation circuit C1, and the conducting direction of the rectifier diode is that the cathode is connected with the second conducting unit in the position representation circuit C2.
The position indicating circuit consists of a positioning indicating circuit and a reverse indicating circuit, wherein the positioning indicating circuit and the reverse indicating circuit have the same function and structure, and the external switch machine is responsible for different wiring positions.
The positioning and reverse indicating circuits form a loop through the secondary side of the indicating transformer, the binding post of the switch machine and the switch machine locker contact combination circuit.
The main acquisition circuit consists of a representation transformer, a current-limiting resistor, a threshold resistor, a rectifier diode, an acquisition circuit, a normally closed contact group of the first switch unit and a normally open and normally closed contact group of the second switch unit. For acquisition of primary and secondary reverse position representation states. Wherein the acquisition circuit is used for acquiring the photoelectric isolation switching value. But not limited to, the photoelectric isolation switch quantity can also be an analog acquisition quantity.
Auxiliary acquisition circuit: the device comprises a representation transformer, a current limiting circuit, a threshold circuit, a rectifier diode, an acquisition circuit, a normally closed contact group of a first switch unit, and normally open and normally closed contact groups of a second switch unit. For assisting in the acquisition of the state representative of the position. Wherein the acquisition circuit is used for acquiring the photoelectric isolation switching value. But not limited to, the photoelectric isolation switch quantity can also be an analog acquisition quantity.
Wherein, the switch point locking device node combined circuit of the peripheral load: the switch contact group of the locking device in the AC switch machine is mainly composed, and different locking device switch contacts are connected to the positioning indicating circuit and the reverse indicating circuit. As a peripheral circuit representing the circuit.
The current limiting circuit and the indicating diode are connected in series and are hung on a contact group of a switch machine locker, and the positioning indicating circuit and the reverse indicating circuit are connected with the current limiting resistor and the indicating diode through a locker node combination of the switch machine.
Fig. 3 is a flowchart of a method for detecting with the above apparatus according to an embodiment of the present application. As shown in fig. 3, the method includes:
and step 303, determining the position representation state of the switch machine according to the acquisition result.
In an exemplary embodiment, if the signals collected in the same period are all pulse signals, it is determined that the switch can correctly represent the position state.
The method provided by the embodiment of the application uses an electronic acquisition circuit and a principle of node states of a locking device in a point switch to construct a dynamic state representation acquisition loop. The acquisition loop is divided into a main representation loop and an auxiliary representation loop. The main representation parameters, the auxiliary representation parameters and the auxiliary reverse representation parameters of the parameter atmosphere are collected, and the position state of the turnout is effectively collected through two loops and three dynamic parameters.
The following explains the scheme provided in the embodiments of the present application:
fig. 4(a) is a schematic diagram of a positioning representation acquisition circuit provided in an embodiment of the present application. As shown in fig. 4(a), the positioning indication acquisition circuit will be explained:
the operating conditions for executing the positioning representation acquisition circuit are explained as follows:
the external switch machine needs to detect the real position state of the turnout as long as the external switch machine is in a non-operation state (the motor in the switch machine does not rotate). The first switching unit and the second switching unit are in a power-off state in fig. 1 at this time. The normally open contact is open and the normally closed contact is closed. The operating state of the third switching unit is controlled by the upper communication layer. When the third switching unit is in the power-off state, conditions are provided for performing the positioning operation and the positioning indication state of the switch.
If the positioning indicating circuit needs to acquire a correct indicating state, the second group of switch units are in a power-off state, and the normally closed contacts of the second group of switch units in the loop are all attracted; the third group of switch units are in a power-off state, and the normally closed contacts of the third switch units in the loop are all attracted;
the point switch is provided with 4 groups of locking devices, wherein the locking device 1 and the locking device 2 have mutual exclusion relationship, the locking device 3 and the locking device 4 have mutual exclusion relationship, and the locking device 1 and the locking device 3 are attracted by contacts, thereby providing peripheral conditions for acquiring the positioning and representing states of turnouts.
The working principle of the positioning representation acquisition circuit is explained as follows:
see the circuit loop marked by the dashed line in fig. 4 (a). The primary side of the transformer is 50Hz alternating current 220V, the secondary side of the transformer is alternating current 110VAC, and when the signal real-time value of the pin 3 is a positive value (alternating current positive half cycle), the auxiliary position indicates that the loop is conducted. The signal circuit is represented by a transformer secondary side 3 pin → a resistor R1 → a switch K3-1 normally closed contact → an auxiliary collecting unit → a switch K2-1 normally closed contact → a switch K3-2 normally closed contact → an X2 interface → a switch lock group 3(33/34 contact) → a switch lock group 1(15/16 contact) → a diode D0 and a resistor R0 → a switch lock group 3(35/36 contact) → an X1 interface → a switch 2-2 normally closed contact → a transformer secondary side 4 pin. In the loop, the auxiliary representation unit can upload the collected switching value signal or analog value signal to the CPU of the turnout control module for representing logic judgment.
See the circuit loop marked by the dotted line in fig. 4 (a). The primary side of the transformer is 50Hz alternating current 220V, the secondary side of the transformer is alternating current 110VAC, and when the signal real-time value of the pin 3 is a negative value (alternating current positive half cycle), the main fixed acquisition unit and the auxiliary reverse fixed acquisition unit are conducted. The signal circuit is expressed by a secondary side 4 pin of the transformer → a normally closed contact of a switch K2-2 → an X1 interface → a switch lock set 1(11/12 contact) → an X4 interface → main positioning acquisition → a current limiting resistor R2 → auxiliary reverse positioning acquisition → an auxiliary side 3 pin of the transformer. In the loop, the main positioning acquisition and the auxiliary reverse positioning indication acquisition can upload the acquired switching value signals or analog quantity signals to a CPU of a turnout control module for indication logic judgment.
Fig. 4(b) is a schematic diagram of the acquisition result of the circuit shown in fig. 4 (a). As shown in fig. 4(b), DB is the main position indication signal, AUX _ DB is the auxiliary position indication signal, and AUX _ F _ DB is the auxiliary reverse position indication signal. The three signals represent the switch position in positioning for the pulse signal in one period.
Fig. 5(a) is a schematic diagram of an inversion representation acquisition circuit provided in an embodiment of the present application. As shown in fig. 5(a), the flip-bit representation acquisition circuit is explained:
the working condition of the flip-bit representation acquisition circuit is explained:
the external switch machine needs to detect the real position state of the turnout as long as the external switch machine is in a non-operation state (the motor in the switch machine does not rotate). The first switching unit and the second switching unit are in the power-off state in fig. 1. The normally open contact is open and the normally closed contact is closed. The operating state of the third switching unit is controlled by the upper communication layer. When the switch 3 is in the power-on state, conditions are provided for the reverse operation and the reverse indication state of the turnout.
If the reverse indicating circuit needs to acquire a correct indicating state, the second switch unit is in a power-off state, and the normally closed contacts of the second switch unit in the loop are all attracted; the third switch unit is in an electrified state, and the normally open contacts of the third switch unit in the loop are all attracted;
the point switch is provided with 4 groups of locking devices, wherein the locking device 1 and the locking device 2 have a mutual exclusion relationship, the locking device 3 and the locking device 4 have a mutual exclusion relationship, and the locking device 2 and the locking device 4 are attracted by contacts, so that a peripheral condition is provided for acquiring the reverse representation state of the turnout.
The working principle of the flip-bit representation acquisition circuit is explained:
see the circuit loop marked by the dashed line in fig. 5 (a). The primary side of the transformer is 50Hz alternating current 220V, the secondary side of the transformer is alternating current 110VAC, and when the signal real-time value of the pin 3 is a positive value (alternating current positive half cycle), the main inversion bit indicates that the loop is conducted. The signal circuit is expressed by a secondary side pin 3 of the transformer → a normally open contact of the switch 3-1 → an auxiliary reverse reversal representation → a main reversal representation collection → a rectifier diode → an X5 interface → a switch lock group 4(41/42 contact) → X1 interface → a normally closed contact of the switch 2-2 → a secondary side pin 4 of the transformer. In the loop, the main reverse bit represents the collection and the auxiliary reverse bit represents the collection, and the collected switching value signal or analog signal can be uploaded to a CPU of a turnout control module for representing logic judgment.
See the circuit loop marked by the dotted line in fig. 5 (a). The primary side of the transformer is represented by 50Hz alternating current 220V, the secondary side of the transformer is represented by alternating current 110VAC, and when the signal real-time value of the pin 3 is a negative value (alternating current positive half cycle), the main positioning represents that the loop and the auxiliary reverse positioning represent that the loop is conducted. The signal circuit is represented by a transformer secondary side 4 pin → a switch K2-2 normally closed contact → an X1 interface → a switch latch group 2(25/26 contact) → representing a diode D0 and a resistor R0 → a switch latch group 4(45/46 contact) → a switch latch group 2(23/24 contact) → an X3 interface → a switch K3-2 normally open contact → a switch K2-1 normally closed contact → auxiliary reverse position representing acquisition → representing a transformer secondary side 3 pin. In the loop, the auxiliary inversion represents that the acquisition can upload the acquired switching value signal or analog value signal to a CPU of a turnout control module for representing logic judgment.
Fig. 5(b) is a schematic diagram of the acquisition result of the circuit shown in fig. 5 (a). As shown in fig. 5(b), FB in fig. 5 is the main positioning indicating signal, AUX _ FB is the auxiliary positioning indicating signal, and AUX _ F _ FB is the auxiliary reverse positioning indicating signal. The three signals are pulse signals in one period to represent that the turnout position is in the reverse position.
In the above scheme, the position acquisition may be state acquisition of switching value signals of photoelectric isolation, magnetoelectric isolation and capacitive coupling isolation, or may be signal acquisition of analog quantities such as a sampling resistor and a sensor.
Referring to table 1, true values representing states are provided:
TABLE 1
As can be seen from table 1, all 3 flag bits corresponding to the status bit are pulses, so that correct acquisition is ensured to effectively represent the status of the position.
Compared with the technical scheme of adopting the gravity relay to collect and represent the position state in the prior art, the scheme provided by the embodiment of the application has the following advantages that:
representing position acquisition electronization, integration and miniaturization. Compared with the traditional mode, the electronic display device has the advantages that the representation loop built by the electronic components is high in integration and small in size, redundant wiring is not needed, field wiring is reduced, the operation is simple, and the use is convenient.
The representing position is obtained by adopting a dynamic pulse acquisition mode, the mode can ensure that the representing position is acquired by mistake due to equipment failure, abnormality or other reasons, and the product quality is improved.
The expression acquisition state of the expression position acquisition is acquired through 6 different variables, comprehensive judgment is performed, acquisition accuracy is improved, and the protection effect is achieved on mixed lines and mixed connection of the external wiring lines. The quality and the efficiency of the product are improved.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (7)
1. A switch controlled position indicating circuit comprising:
a switch K3-1 connected to pin 3 representing the secondary side of the transformer;
the auxiliary acquisition circuit is connected with one end of the switch K3-1 and the other end of the auxiliary acquisition circuit is connected with one end of the switch K2-1, and comprises two branches which are connected in parallel, wherein each branch is provided with a first acquisition unit and a first conduction unit, and the conduction directions of the first conduction units on the two branches are opposite;
one end of the switch K3-2 is connected with the other end of the switch K2-1, and the other end is connected with the point switch;
the main acquisition circuit is connected with one end of the auxiliary acquisition circuit, the other end of the auxiliary acquisition circuit is connected with the switch machine, and the main acquisition circuit comprises a second acquisition unit and a second conduction unit, wherein the conduction direction of the second conduction unit is determined according to a binding post of the switch machine;
one end of a switch K2-2 is connected with a 4 th base pin representing the secondary side of the transformer, and the other end is connected with a point switch;
the switches K2-1, K2-2, K3-1 and K3-2 are all provided with normally open contacts and normally closed contacts.
2. The circuit of claim 1, comprising:
and one end of the resistor R1 is connected with the switch K3-1, and the other end of the resistor R1 is connected with the auxiliary acquisition circuit.
3. The circuit of claim 1, comprising:
and one end of the resistor R2 is connected with one end of the main acquisition circuit, and the other end of the resistor R2 is connected with the other end of the main acquisition circuit.
4. The circuit of claim 3, comprising:
and one end of the third conduction unit is connected with the other end of the auxiliary acquisition circuit, the other end of the third conduction unit is connected with one end of the main acquisition circuit, and the conduction direction of the third conduction unit is the same as that of the second conduction unit.
5. A switch-controlled position indicating device comprising:
represents a transformer;
the position indicating circuit of any of claims 1 to 4, C1, C2, wherein:
the main acquisition circuit, the switch K3-2 and the switch K2-2 of the position indication circuit C1 are sequentially connected with binding posts X4, X2 and X1 of the switch; the conduction direction of the second conduction unit is from the wiring terminal X4 to the auxiliary acquisition circuit;
the main acquisition circuit, the switch K3-2 and the switch K2-2 of the position indication circuit C2 are sequentially connected with binding posts X5, X3 and X1 of the switch; indicating that diode D1 conducts in the direction from the secondary pick-up circuit to terminal X5.
6. A method of detection using the apparatus of claim 5, comprising:
controlling the power-on states of the switches K2-1, K2-2, K3-1 and K3-2 to enable the switch machine to be in a positioning or reverse state;
acquiring acquisition results of a first acquisition unit and a second acquisition unit;
and determining the position representation state of the switch machine according to the acquisition result.
7. The method of claim 6, wherein said determining a position representative state of a switch machine based on said acquisition comprises:
and if the acquisition result shows that the signals in the same period are pulse signals, determining that the switch machine can correctly represent the position state.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115158397A (en) * | 2022-07-15 | 2022-10-11 | 中国铁道科学研究院集团有限公司 | Station ground control system and turnout indication controller control method |
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