Parallel dual-master redundancy switching system and implementation method of track electronic actuators

Abstract

This invention relates to the field of traffic information engineering and control technology, and is a parallel dual-master redundancy switching system for track electronic actuators and its implementation method. The system includes a Series I track electronic actuator, a Series II track electronic actuator, and a wiring backplane. Both Series I and Series II track electronic actuators are plugged into the wiring backplane. By setting up a parallel dual-master redundancy switching system for Series I and Series II track electronic actuators, the track status information collected by both systems is the same when the two systems collect current, ensuring consistency. Moreover, the parallel dual-master redundancy switching system has the same matching impedance and consistent acquisition circuit parameters under different operating states such as dual-system and single-system (except when both systems are faulty), eliminating the problem of asynchronous states between the two systems after impedance matching, and reducing the influencing factors on the acquisition of track section status.

Description

Technical Field

[0001] This invention relates to the field of traffic information engineering and control technology, and in particular to a parallel dual-master redundancy switching system for track electronic actuators and its implementation method. Background Technology

[0002] In the current field of traffic information engineering and control, existing parallel dual-master redundant system track section status acquisition methods mainly consist of a microelectronic receiving transformer (HBJ) and two sets of track circuit electronic actuators in parallel redundancy. The microelectronic receiving transformer, through impedance matching characteristics, matches the track status information (DY+ and DY-) transmitted from outdoors into identical dual signals, which are then output to the two sets of track circuit electronic actuators. The two sets of track electronic actuators obtain the corresponding track section status through the received track status information and local voltage information, and control the electronic actuator communication channel to transmit the status information to the interlocking machine and maintenance machine, thereby realizing the acquisition, monitoring, and control of the parallel dual-master track status. Figure 9 The diagram illustrates the data acquisition and control principle.

[0003] Existing parallel dual-master schemes place high demands on the performance parameters of the microelectronic receiving transformer. Poor impedance matching can lead to asynchronous acquisition and signal parameter deviations between the two sets of dual-track electronic actuators, thus affecting the acquisition and output of track section status. Furthermore, when a faulty actuator needs to be removed, the impedance matching characteristics of the microelectronic receiving transformer are also affected, causing significant deviations in the input and output of the other normally operating dual-track electronic actuator. Moreover, the current parallel dual-master redundant equipment has a complex structure, and the single and dual-set (system) actuator models are not interchangeable due to different impedance matching requirements, resulting in numerous factors influencing track section status acquisition. The track section status information is easily affected by device performance. Summary of the Invention

[0004] This invention provides a parallel dual-master redundancy switching system and implementation method for track electronic actuators, which overcomes the shortcomings of the prior art. It can effectively solve the problems of complex structure and lack of universality of existing parallel dual-master redundancy systems, as well as the existence of many influencing factors on track section status acquisition.

[0005] To solve the above problems, one of the technical solutions of the present invention is achieved by means of the following: a parallel dual-master redundancy switching system for track electronic actuators, including an I-series track electronic actuator, a II-series track electronic actuator and a wiring backplane, wherein both the I-series track electronic actuator and the II-series track electronic actuator are plugged into the wiring backplane;

[0006] The I-series track electronic actuator includes I-series power supply one, I-series relays, I-series impedance one, I-series impedance two, I-series current acquisition and sensing circuit, I-series control module, I-series fault relay, and I-series main and backup status acquisition circuit; the I-series fault relay includes I-series fault relay coil and I-series fault relay contact; the I-series relay includes I-series relay coil, I-series relay second normally closed contact, I-series relay third normally open contact, and I-series relay fourth normally closed contact.

[0007] The second normally closed contact of the I-series relay is connected to I-series impedance one, I-series impedance one is connected to I-series impedance two, the two ends of the third normally open contact of the I-series relay are respectively connected between I-series impedance one and I-series impedance two and the second normally closed contact of the I-series relay, I-series impedance two is connected to the fourth normally closed contact of the I-series relay, an I-series current acquisition sensing circuit is connected between I-series impedance two and the fourth normally closed contact of the I-series relay, an I-series control module is connected to the I-series current acquisition sensing circuit, and the I-series control module is respectively connected to the I-series fault relay coil and the I-series main / standby status acquisition circuit;

[0008] The II-series track electronic actuator includes II-series power supply one, II-series relays, II-series impedance one, II-series impedance two, II-series current acquisition and sensing circuit, II-series control module, II-series fault relay, and II-series main and backup status acquisition circuit; the II-series fault relay includes II-series fault relay coil and II-series fault relay contact; the II-series relay includes II-series relay coil, II-series relay second normally closed contact, II-series relay third normally open contact, and II-series relay fourth normally closed contact;

[0009] The second normally closed contact of the II-series relay is connected to the second normally closed contact of the I-series relay and the II-series impedance one. The II-series impedance one is connected to the II-series impedance two. The two ends of the third normally open contact of the II-series relay are connected to the I-series current acquisition and sensing circuit between the II-series impedance one and the II-series impedance two. The II-series impedance two is connected to the fourth normally closed contact of the II-series relay. The II-series current acquisition and sensing circuit is connected between the II-series impedance two and the fourth normally closed contact of the II-series relay. The II-series current acquisition and sensing circuit is connected to the II-series control module and the fourth normally closed contact of the I-series relay. The II-series control module is connected to the II-series fault relay coil and the II-series main / standby status acquisition circuit.

[0010] The second normally closed contact of the II-series relay is connected to the positive terminal of the rail voltage, and the second normally closed contact of the I-series relay is connected to the negative terminal of the rail voltage. The I-series power supply, the I-series fault relay contact, the II-series relay coil, the I-series relay coil, the II-series fault relay contact, and the II-series power supply are connected together in sequence. The II-series relay coil and the I-series relay coil are connected to the common ground.

[0011] The aforementioned I-series current acquisition sensing circuit includes an I-series current sensor 1, an I-series current sensor 2, an I-series adjustment resistor 1, and an I-series adjustment resistor 2. The primary sides of the I-series current sensor 1 and the I-series current sensor 2 are connected in series and then connected between the I-series impedance 2 and the fourth normally closed contact of the I-series relay. The I-series adjustment resistor 1 is connected in parallel across the secondary side of the I-series current sensor 1 and is connected to the I-series control module. The I-series adjustment resistor 2 is connected in parallel across the secondary side of the I-series current sensor 2 and is connected to the I-series control module.

[0012] The aforementioned I-series main / standby status acquisition circuit includes an I-series power supply II, an I-series current-limiting resistor, and an I-series relay first normally open contact. The I-series power supply II, the I-series current-limiting resistor, and the I-series relay first normally open contact are connected in series. The I-series relay first normally open contact is grounded. The I-series control module is connected between the I-series current-limiting resistor and the I-series relay first normally open contact.

[0013] The aforementioned I-series control module includes an ICPU and an I-interlocking unit. The I-interlocking unit, the I-series current acquisition and sensing circuit, the I-series fault relay coil, and the I-series main and backup status acquisition circuit are all connected to the ICPU.

[0014] The aforementioned II-series current acquisition sensing circuit includes a II-series current sensor 1, a II-series current sensor 2, a II-series adjustment resistor 1, and a II-series adjustment resistor 2. The primary sides of the II-series current sensor 1 and the II-series current sensor 2 are connected in series and then connected between the II-series impedance 2 and the fourth normally closed contact of the II-series relay. The secondary side of the II-series current sensor 1 is connected in parallel with the II-series adjustment resistor 1, which is connected to the II-series control module. The secondary side of the II-series current sensor 2 is connected in parallel with the II-series adjustment resistor 2, which is connected to the II-series control module.

[0015] The aforementioned II-series main / standby status acquisition circuit includes a II-series power supply, a II-series current-limiting resistor, and a first normally open contact of a II-series relay. The II-series power supply, the II-series current-limiting resistor, and the first normally open contact of the II-series relay are connected in series. The first normally open contact of the II-series relay is grounded. The II-series control module is connected between the II-series current-limiting resistor and the first normally open contact of the II-series relay.

[0016] The aforementioned II-series control module includes the IICPU and the II interlocking unit. The II interlocking unit, the II-series current acquisition and sensing circuit, the II-series fault relay coil, and the II-series main and backup status acquisition circuit are all connected to the IICPU.

[0017] The second technical solution of this invention is achieved through the following method: a method for implementing parallel dual-master redundancy switching of track electronic actuators, using a parallel dual-master redundancy switching system for track electronic actuators, including,

[0018] (1) When both the I-series and II-series track electronic actuators are working normally, the dual-master redundancy switching method is as follows:

[0019] When the I-series track electronic actuator receives the normal operating conditions of the II-series track electronic actuator, the II-series fault relay connects to the II-series power supply, the I-series relay coil is energized and pulled up, the second normally closed contact and the fourth normally closed contact of the I-series relay open, and the third normally open contact of the I-series relay closes.

[0020] The II-series track electronic actuator receives the normal operating conditions of the I-series track electronic actuator. The I-series fault relay connects to the I-series power supply, the II-series relay coil is energized and pulled up, the second normally closed contact and the fourth normally closed contact of the II-series relay open, and the third normally open contact of the II-series relay closes.

[0021] (2) When the I-series track electronic actuator is working normally and the II-series track electronic actuator fails, the dual-master redundancy switching method is as follows:

[0022] When the I-series track electronic actuator receives the fault operating conditions of the II-series track electronic actuator, the II-series fault relay disconnects the II-series power supply, the I-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the I-series relay close, and the third normally open contact of the I-series relay opens.

[0023] The II-series track electronic actuator receives the normal operating conditions of the I-series track electronic actuator. The I-series fault relay connects to the I-series power supply, the II-series relay coil is energized and pulled up, the second normally closed contact and the fourth normally closed contact of the II-series relay open, and the third normally open contact of the II-series relay closes.

[0024] (3) When the I-series track electronic actuator is working normally and the II-series track electronic actuator is offline, the dual-master redundancy switching method is as follows:

[0025] When the I-series track electronic actuator receives the offline working conditions of the II-series track electronic actuator, the I-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the I-series relay close, and the third normally open contact of the I-series relay opens.

[0026] (4) When the I-series track electronic actuator fails and the II-series track electronic actuator is working normally, the dual-master redundancy switching method is as follows:

[0027] The II-series track electronic actuator receives the fault operating conditions of the I-series track electronic actuator. The I-series fault relay disconnects the I-series power supply, the II-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the II-series relay close, and the third normally open contact of the II-series relay opens.

[0028] When the I-series track electronic actuator receives the normal operating conditions of the II-series track electronic actuator, the II-series fault relay connects to the II-series power supply, the I-series relay coil is energized and pulled up, the second normally closed contact and the fourth normally closed contact of the I-series relay open, and the third normally open contact of the I-series relay closes.

[0029] (5) When the I-series track electronic actuator is offline and the II-series track electronic actuator is working normally, the dual-master redundancy switching method is as follows:

[0030] When the II-series track electronic actuator receives the offline working conditions of the I-series track electronic actuator, the II-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the II-series relay close, and the third normally open contact of the II-series relay opens.

[0031] (6) When both the I-series and II-series track electronic actuators fail, the dual-master redundancy switching method is as follows:

[0032] When the I-series track electronic actuator receives the fault operating conditions of the II-series track electronic actuator, the II-series fault relay disconnects the II-series power supply, the I-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the I-series relay close, and the third normally open contact of the I-series relay opens.

[0033] The II-series track electronic actuator receives the fault operating conditions of the I-series track electronic actuator. The I-series fault relay disconnects the I-series power supply, the II-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the II-series relay close, and the third normally open contact of the II-series relay opens.

[0034] (7) When the I-series track electronic actuator is working alone, the dual-master redundancy switching method is as follows:

[0035] The I-series track electronic actuator is working normally, but the I-series relay coil loses its magnetism and falls.

[0036] The above includes the current acquisition logic as follows:

[0037] (1) When both the I-series and II-series track electronic actuators are working normally, the current acquisition logic is as follows:

[0038] The track status information is transmitted to the negative track voltage via the positive terminal of the track voltage, the third normally open contact of the I-series relay, the second I-series impedance, the first I-series current sensor, the second I-series current sensor, the third normally open contact of the II-series relay, the second II-series impedance, the first II-series current sensor, and the second II-series current sensor.

[0039] (2) When the I-series track electronic actuator is working normally and the II-series track electronic actuator is malfunctioning, the current acquisition logic is as follows:

[0040] The track status information is transmitted to the negative track voltage via the positive terminal of the track voltage, the second normally closed contact of the I-series relay, the I-series impedance one, the I-series impedance two, the I-series current sensor one, the I-series current sensor two, and the fourth normally closed contact of the I-series relay.

[0041] (3) When the I-series track electronic actuator is working normally and the II-series track electronic actuator is offline, the current acquisition logic is as follows:

[0042] The track status information is transmitted to the negative track voltage via the positive terminal of the track voltage, the second normally closed contact of the I-series relay, the I-series impedance one, the I-series impedance two, the I-series current sensor one, the I-series current sensor two, and the fourth normally closed contact of the I-series relay.

[0043] (4) When the I-series track electronic actuator fails and the II-series track electronic actuator is working normally, the current acquisition logic is as follows:

[0044] The track status information is transmitted to the negative track voltage terminal via the positive terminal of the track voltage, the second normally closed contact of the II-series relay, the II-series impedance one, the II-series impedance two, the II-series current sensor one, and the II-series current sensor two.

[0045] (5) When the I-series track electronic actuator is offline and the II-series track electronic actuator is working normally, the current acquisition logic is as follows:

[0046] The track status information is transmitted to the negative track voltage terminal via the positive terminal of the track voltage, the second normally closed contact of the II-series relay, the II-series impedance one, the II-series impedance two, the II-series current sensor one, and the II-series current sensor two.

[0047] (6) When both the I-series and II-series track electronic actuators fail, the current acquisition logic is as follows:

[0048] The track status information is transmitted to the negative track voltage via the positive terminal of the track voltage, the second normally closed contact of the I-series relay, the I-series impedance one, the I-series impedance two, the I-series current sensor one, the I-series current sensor two, and the fourth normally closed contact of the I-series relay.

[0049] The track status information is transmitted to the negative track voltage terminal via the positive terminal of the track voltage, the second normally closed contact of the II-series relay, the II-series impedance one, the II-series impedance two, the II-series current sensor one, and the II-series current sensor two.

[0050] (7) When the I-series track electronic actuator is working alone, the current acquisition logic is as follows:

[0051] Track status information is transmitted to the negative terminal of the track voltage via the positive terminal of the track voltage, I-series impedance one, I-series impedance two, I-series current sensor one, and I-series current sensor two.

[0052] The current collected above is as follows:

[0053] (1) When both the I-series and II-series track electronic actuators are working normally, the currents collected by the two systems are: and ,

[0054] In the formula, Z12 is the impedance of system I; Z22 is the impedance of system II; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator; Track section current signals acquired by the II-series track electronic actuator;

[0055] (2) When the I-series track electronic actuator is working normally and the II-series track electronic actuator fails, the current collected by the I-series track electronic actuator is: ,

[0056] In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator;

[0057] (3) When the I-series track electronic actuator is working normally and the II-series track electronic actuator is offline, the current collected by the I-series track electronic actuator is: ,

[0058] In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator;

[0059] (4) When the I-series track electronic actuator malfunctions and the II-series track electronic actuator is working normally, the current collected by the II-series track electronic actuator is: ,

[0060] In the formula, Z21 is the first impedance of the II system; Z22 is the second impedance of the II system; This is the status voltage signal for the track section; Track section current signals acquired by the II-series track electronic actuator;

[0061] (5) When the I-series track electronic actuator is offline and the II-series track electronic actuator is working normally, the current collected by the II-series track electronic actuator is: ,

[0062] In the formula, Z21 is the first impedance of the II system; Z22 is the second impedance of the II system; This is the status voltage signal for the track section; Track section current signals acquired by the II-series track electronic actuator;

[0063] (6) When both the I-series and II-series track electronic actuators fail, the current collected by the I-series track electronic actuator is: ,

[0064] In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; The track section current signal was collected by the I-series track electronic actuator; due to a malfunction of the I-series track electronic actuator, the collected current data is unusable.

[0065] The current collected by the II-series orbital electronic actuator is: ,

[0066] In the formula, Z21 is the first impedance of the II system; Z22 is the second impedance of the II system; This is the status voltage signal for the track section; The track section current signal was collected by the II-series track electronic actuator; due to a malfunction of the II-series track electronic actuator, the collected current data is unusable.

[0067] (7) When the I-series track electronic actuator is working alone, the current collected by the I-series track electronic actuator is: ,

[0068] In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator;

[0069] In multiple redundancy switching modes, the track section state voltage signal remains unchanged during the switching process. At the same time, the impedances of Z11, Z12, Z21, and Z22 are all the same. Therefore, the track section current signal collected by the I-series track electronic actuator and the II-series track electronic actuator also remains unchanged.

[0070] Since the acquisition environment and conditions are identical, the track section current signals acquired by the I-series and II-series track electronic actuators are... and It is always the same.

[0071] Compared with the prior art, the present invention has the following advantages:

[0072] 1. This invention discloses a parallel dual-main redundancy switching system for track electronic actuators and its implementation method. By setting up a parallel dual-main redundancy switching system for I-series and II-series track electronic actuators, the track status information collected by the two systems is the same when the two systems collect current, ensuring consistency. Moreover, the parallel dual-main redundancy switching system has the same matching impedance and consistent acquisition circuit parameters under different working states such as dual-system and single-system (except when both systems are faulty), and there is no problem of asynchronous states between the two systems after impedance matching, reducing the influencing factors on the acquisition of track section status.

[0073] 2. In this invention, the track section status acquisition and redundancy switching are performed only between the two track electronic execution units, without the need for other redundant equipment, which simplifies the structure and principle of the entire system. Furthermore, in the parallel dual-master redundancy switching system, if one of the systems fails during dual-system operation, it automatically switches to the normal equipment of the other system to continue acquisition. At the same time, the faulty equipment supports hot-swappable replacement, and after the replacement is completed, it automatically switches back to dual-system acquisition.

[0074] 3. In this invention, by setting up a control module, the track electronic execution unit uploads the collected track section status information to the interlocking machine via a network, thereby realizing the monitoring of track section status information; and the entire system of this invention can be used in existing single-set (system) control systems and dual-set (system) redundant control systems without any additional modifications, reducing the types of models and versions, and lowering the operation and maintenance costs. Attached Figure Description

[0075] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0076] Figure 1 This is the overall circuit structure diagram of the system in Embodiment 1 of the present invention.

[0077] Figure 2This is the current acquisition logic diagram when both the I-series and II-series track electronic actuators are working normally in Embodiment 2 of the present invention.

[0078] Figure 3 The current acquisition logic diagram for the I-series track electronic actuator unit working normally and the II-series track electronic actuator unit malfunctioning in Embodiment 2 of the present invention.

[0079] Figure 4 The current acquisition logic diagram for the I-series track electronic actuator unit when it is working normally and the II-series track electronic actuator unit is offline in Embodiment 2 of the present invention.

[0080] Figure 5 This is a current acquisition logic diagram for the I-series track electronic actuator unit in Embodiment 2 of the present invention when it is malfunctioning and the II-series track electronic actuator unit is working normally.

[0081] Figure 6 This is the current acquisition logic diagram for the I-series track electronic actuator unit when it is offline and the II-series track electronic actuator unit is working normally in Embodiment 2 of the present invention.

[0082] Figure 7 This is the current acquisition logic diagram for both the I-series and II-series track electronic actuators in Embodiment 2 of the present invention when both fail.

[0083] Figure 8 This is the current acquisition logic diagram of the I-series track electronic actuator unit when it is working alone in Embodiment 2 of the present invention.

[0084] Figure 9 This is a schematic diagram of the acquisition and control principle of the prior art in the background of this invention.

[0085] In the diagram: DY+ is the positive terminal of the track voltage, DY- is the negative terminal of the track voltage, Z11 is the I-system impedance one, Z12 is the I-system impedance two, Z21 is the II-system impedance one, Z22 is the II-system impedance two, T11 is the I-system current sensor one, T12 is the I-system current sensor two, T21 is the II-system current sensor one, T22 is the II-system current sensor two, R11 is the I-system adjustment resistor one, R12 is the I-system adjustment resistor two, R21 is the II-system adjustment resistor one, R22 is the II-system adjustment resistor. Resistor 2, IGZJ is the coil of the I-series fault relay, IGZJ1 is the contact of the I-series fault relay, IIGZJ is the coil of the II-series fault relay, IIGZJ1 is the contact of the II-series fault relay, K10A is the coil of the I-series relay, K10B is the first normally open contact of the I-series relay, K10C is the second normally closed contact of the I-series relay, K10D is the third normally open contact of the I-series relay, K10E is the fourth normally closed contact of the I-series relay, K20A is the coil of the II-series relay, K20B... K20C is the first normally open contact of the II-series relay, K20D is the second normally closed contact of the II-series relay, K20E is the third normally open contact of the II-series relay, R13 is the I-series current-limiting resistor, R23 is the II-series current-limiting resistor, I_DY1 is the I-series power supply one, II_DY1 is the II-series power supply one, I_DY2 is the I-series power supply two, II_DY2 is the II-series power supply two, and DY1_GND is the common ground. Detailed Implementation

[0086] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0087] Example 1: As Figure 1 As shown, this embodiment of the invention discloses a parallel dual-master redundancy switching system for track electronic actuators, including an I-series track electronic actuator, a II-series track electronic actuator, and a wiring backplane. Both the I-series and II-series track electronic actuators are plugged into the wiring backplane.

[0088] The I-series track electronic actuator includes an I-series power supply I_DY1, an I-series relay, an I-series impedance Z11, an I-series impedance Z12, an I-series current acquisition sensing circuit, an I-series control module, an I-series fault relay, and an I-series main / standby status acquisition circuit; the I-series fault relay includes an I-series fault relay coil IGZJ and an I-series fault relay contact IGZJ1; the I-series relay includes an I-series relay coil K10A, an I-series relay second normally closed contact K10C, an I-series relay third normally open contact K10D, and an I-series relay fourth normally closed contact K10E;

[0089] The second normally closed contact K10C of the I-series relay is connected to the I-series impedance one Z11. The I-series impedance one Z11 is connected to the I-series impedance two Z12. The two ends of the third normally open contact K10D of the I-series relay are respectively connected between the I-series impedance one Z11 and the I-series impedance two Z12 and the second normally closed contact K10C of the I-series relay. The I-series impedance two Z12 is connected to the fourth normally closed contact K10E of the I-series relay. An I-series current acquisition sensing circuit is connected between the I-series impedance two Z12 and the fourth normally closed contact K10E of the I-series relay. An I-series control module is connected to the I-series current acquisition sensing circuit. The I-series control module is connected to the I-series fault relay coil IGZJ and the I-series main / standby status acquisition circuit.

[0090] The II-series track electronic actuator includes II-series power supply I_DY1, II-series relays, II-series impedance I Z21, II-series impedance II Z22, II-series current acquisition sensing circuit, II-series control module, II-series fault relays, and II-series main / standby status acquisition circuits; the II-series fault relays include II-series fault relay coil IIGZJ and II-series fault relay contact IIGZJ1; the II-series relays include II-series relay coil K20A, II-series relay second normally closed contact K20C, II-series relay third normally open contact K20D, and II-series relay fourth normally closed contact K20E;

[0091] The second normally closed contact K20C of the II-series relay is connected to the second normally closed contact K10C of the I-series relay and the II-series impedance Z21. The II-series impedance Z21 is connected to the II-series impedance Z22. The two ends of the third normally open contact K20D of the II-series relay are connected to the space between the II-series impedance Z21 and the II-series impedance Z22 and the I-series current acquisition sensing circuit. The II-series impedance Z22 is connected to the fourth normally closed contact K20E of the II-series relay. The II-series current acquisition sensing circuit is connected between the II-series impedance Z22 and the fourth normally closed contact K20E of the II-series relay. The II-series current acquisition sensing circuit is connected to the II-series control module and the fourth normally closed contact K10E of the I-series relay. The II-series control module is connected to the II-series fault relay coil IIGZJ and the II-series main / standby status acquisition circuit.

[0092] The second normally closed contact K20C of the II-series relay and the second normally closed contact K10C of the I-series relay are connected to the positive rail voltage terminal DY+. The current acquisition sensing circuit of the II-series relay and the fourth normally closed contact K10E of the I-series relay are connected to the negative rail voltage terminal DY-. The I-series power supply I_DY1, the I-series fault relay contact IGZJ1, the II-series relay coil K20A, the I-series coil K10A, the II-series fault relay contact IIGZJ1, and the II-series power supply II_DY1 are connected together in sequence. The II-series relay coil K20A and the I-series coil K10A are connected to the common ground DY1_GND.

[0093] The wiring backplane is used to connect the I-series and II-series track electronic actuators, providing power and wiring for the entire system.

[0094] Among them, the positive track voltage DY+ is input from the outdoor track circuit and is adjusted to obtain the track section status voltage signal. The I-series track electronic actuator and the II-series track electronic actuator are used for track section status acquisition.

[0095] Among them, I-series impedance Z11, I-series impedance Z12, II-series impedance Z21 and II-series impedance Z22 are all track circuit matching impedances, which can be specifically composed of impedance devices such as resistors, capacitors and inductors. The impedance values ​​of I-series impedance Z11, I-series impedance Z12, II-series impedance Z21 and II-series impedance Z22 are equal, and the impedance values ​​of I-series impedance Z11, I-series impedance Z12, II-series impedance Z21 and II-series impedance Z22 are half of the track circuit matching impedance.

[0096] Among them, the I-series relays and the II-series relays are both monitoring and switching relays, used for status monitoring and switching of adjacent modules when the I-series track electronic actuators and the II-series track electronic actuators are working redundantly.

[0097] Among them, the I-series fault relay and the II-series fault relay are both relays driven by the I-series control module and the II-series control module, respectively. They are activated when the I-series track electronic actuator and the II-series track electronic actuator are online and working normally. The I-series fault relay contact IGZJ1 and the II-series fault relay contact IIGZJ1 are connected to the I-series power supply I_DY1 and the II-series power supply II_DY1, respectively, to transmit the working status, offline status and disconnected status of the actuator in case of fault to the adjacent actuator.

[0098] Among them, the I-series power supply I_DY1 and the II-series power supply II_DY1 are both 24V DC power supplies.

[0099] The aforementioned I-series current acquisition sensing circuit includes an I-series current sensor T11, an I-series current sensor T12, an I-series adjustment resistor R11, and an I-series adjustment resistor R12. The primary windings of the I-series current sensor T11 and the I-series current sensor T12 are connected in series and then connected between the I-series impedance Z12 and the fourth normally closed contact K10E of the I-series relay. The I-series adjustment resistor R11 is connected in parallel across the secondary winding of the I-series current sensor T11 and is connected to the I-series control module. The I-series adjustment resistor R12 is connected in parallel across the secondary winding of the I-series current sensor T12 and is connected to the I-series control module.

[0100] Among them, I-series current sensor T11 and I-series current sensor T12 are both existing known current sensors used to isolate high voltage and provide the I-series control module with an interface for acquiring track section status signals.

[0101] Among them, I-series adjustment resistor 1 R11 and I-series adjustment resistor 2 R12 are both current sensor acquisition adjustment resistors used to adjust the track section state voltage signal so that the track section state voltage signal can meet the acquisition requirements of the I-series control module acquisition port.

[0102] The aforementioned I-series main / standby status acquisition circuit includes an I-series power supply I_DY2, an I-series current-limiting resistor R13, and an I-series relay first normally open contact K10B. The I-series power supply I_DY2, the I-series current-limiting resistor R13, and the I-series relay first normally open contact K10B are connected in series. The I-series relay first normally open contact K10B is grounded. The I-series control module is connected between the I-series current-limiting resistor R13 and the I-series relay first normally open contact K10B.

[0103] Specifically, the acquisition process of the I-series main / standby status acquisition circuit is as follows: When the I-series track electronic actuator is working normally, the first normally open contact K10B of the I-series relay is closed, and the I-series control module will acquire a low-level signal and set it to the main state; when the I-series track electronic actuator malfunctions or is not powered on, the first normally open contact K10B of the I-series relay is open, and the I-series control module will acquire a high-level signal and set it to the standby state.

[0104] Among them, the I-series power supply I_DY2 is a 5V DC power supply; the I-series current-limiting resistor R13 is used for sampling the working status of the I-series relay.

[0105] The aforementioned I-series control module includes an ICPU and an I-interlocking unit. The I-interlocking unit, the I-series current acquisition and sensing circuit, the I-series fault relay coil IGZJ, and the I-series main and backup status acquisition circuit are all connected to the ICPU.

[0106] Among them, the I-series control module is used to upload the track status information collected by the I-series track electronic actuator through the ICPU to the I-interlocking machine channel and the detection channel.

[0107] The aforementioned II-series current acquisition sensing circuit includes a II-series current sensor T21, a II-series current sensor T22, a II-series adjustment resistor R21, and a II-series adjustment resistor R22. The primary windings of the II-series current sensor T21 and the II-series current sensor T22 are connected in series and then connected between the II-series impedance Z22 and the fourth normally closed contact K20E of the II-series relay. The secondary winding of the II-series current sensor T21 is connected in parallel with the II-series adjustment resistor R21, which is connected to the II-series control module. The secondary winding of the II-series current sensor T22 is connected in parallel with the II-series adjustment resistor R22, which is connected to the II-series control module.

[0108] Among them, the II series current sensor T21 and the II series current sensor T22 are both existing known current sensors used to isolate high voltage and provide an interface for acquiring track section status signals.

[0109] Among them, the II series adjustment resistor 1 R21 and the II series adjustment resistor 2 R22 are both current sensor acquisition adjustment resistors used to adjust the track section state voltage signal so that the track section state voltage signal can meet the acquisition requirements of the IICPU acquisition port.

[0110] The aforementioned II-series main / standby status acquisition circuit includes II-series power supply II_DY2, II-series current-limiting resistor R23, and the first normally open contact K20B of the II-series relay. The II-series power supply II_DY2, II-series current-limiting resistor R23, and the first normally open contact K20B of the II-series relay are connected in series. The first normally open contact K20B of the II-series relay is grounded. The II-series control module is connected between the II-series current-limiting resistor R23 and the first normally open contact K20B of the II-series relay.

[0111] Specifically, the acquisition process of the II-series main / standby status acquisition circuit is as follows: When the II-series track electronic actuator is working normally, the first normally open contact K20B of the II-series relay is closed, and the II-series control module will acquire a low-level signal and set it to the main state; when the II-series track electronic actuator malfunctions or is not powered on, the first normally open contact K20B of the II-series relay is open, and the II-series control module will acquire a high-level signal and set it to the standby state.

[0112] Among them, the II-series power supply II_DY2 is a 5V DC power supply; the II-series current-limiting resistor R23 is used for the operation status feedback of the II-series relay.

[0113] The aforementioned II-series control module includes the IICPU and the II interlocking unit. The II interlocking unit, the II-series current acquisition and sensing circuit, the II-series fault relay coil IIGZJ, and the II-series main and backup status acquisition circuit are all connected to the IICPU.

[0114] The II-series control module is used to upload the track status information collected by the II-series track electronic actuators through the IICPU via the II interlocking machine channel and the detection channel, ensuring that the track status information collected by the two track electronic actuators is the same and that their consistency is guaranteed.

[0115] Example 2: This embodiment of the invention discloses a method for implementing parallel dual-master redundancy switching of track electronic actuators, using a parallel dual-master redundancy switching system for track electronic actuators, including;

[0116] (1) When both the I-series and II-series track electronic actuators are working normally, such as Figure 2 As shown, the dual-master redundancy switching implementation method is as follows:

[0117] When the I-series track electronic actuator receives the normal operating conditions of the II-series track electronic actuator, the II-series fault relay connects the II-series power supply II_DY1, the I-series relay coil K10A is energized and pulled up, the second normally closed contact K10C and the fourth normally closed contact K10E of the I-series relay open, and the third normally open contact K10D of the I-series relay closes.

[0118] The II-series track electronic actuator receives the normal operating conditions of the I-series track electronic actuator. The I-series fault relay connects the I-series power supply I_DY1, the II-series relay coil K20A is energized and pulled up, the second normally closed contact K20C and the fourth normally closed contact K20E of the II-series relay are opened, and the third normally open contact K20D of the II-series relay is closed.

[0119] The current acquisition logic is as follows: The track status information is transmitted to the track voltage negative terminal DY- after passing through the track voltage positive terminal DY+, the third normally open contact K10D of the I-series relay, the I-series impedance II Z12, the I-series current sensor I T11, the I-series current sensor II T12, the third normally open contact K20D of the II-series relay, the II-series impedance II Z22, the II-series current sensor I T21, and the II-series current sensor II T22.

[0120] Therefore, when both the I-series and II-series track electronic actuators are operating normally, the system is in a dual-main redundancy state. The I-series relays of the I-series track electronic actuators receive the normal operating conditions of the II-series track electronic actuators, and the II-series relays of the II-series track electronic actuators receive the normal operating conditions of the I-series track electronic actuators. Through the redundancy switching function, the I-series track electronic actuator circuit matching impedance I-series impedance two Z12, I-series current sensor one T11, and I-series current sensor two T12 are connected; the II-series track electronic actuator circuit matching impedance II-series impedance two Z22, and II-series current sensor one T21 and II-series current sensor two T22 are connected. In this state, the track circuit matching impedance is I-series impedance two Z12 plus II-series impedance two Z22, and the collected current is: and ,

[0121] In the formula, Z12 is the impedance of system I; Z22 is the impedance of system II; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator; Track section current signals acquired by the II-series track electronic actuator;

[0122] At this time, the I-system impedance Z11 is in an open circuit state because the I-system relay coil K10A is energized and the second normally closed contact K10C of the I-system relay is open. The II-system impedance Z21 is in an open circuit state because the II-system relay coil K20A is energized and the second normally closed contact K20C of the II-system relay is open.

[0123] (2) When the I-series track electronic actuator is working normally, and the II-series track electronic actuator malfunctions, such as Figure 3 As shown, the dual-master redundancy switching implementation method is as follows:

[0124] The I-series track electronic actuator receives the fault working conditions of the II-series track electronic actuator. The II-series fault relay disconnects the II-series power supply II_DY1. The I-series relay coil K10A loses its magnetism and falls. The I-series relay second normally closed contact K10C and the I-series relay fourth normally closed contact K10E close. The I-series relay third normally open contact K10D opens.

[0125] The II-series track electronic actuator receives the normal operating conditions of the I-series track electronic actuator. The I-series fault relay connects the I-series power supply I_DY1, the II-series relay coil K20A is energized and pulled up, the second normally closed contact K20C and the fourth normally closed contact K20E of the II-series relay are opened, and the third normally open contact K20D of the II-series relay is closed.

[0126] The current acquisition logic is as follows: The track status information is transmitted to the track voltage negative terminal DY- after passing through the track voltage positive terminal DY+, the second normally closed contact K10C of the I-series relay, the I-series impedance one Z11, the I-series impedance two Z12, the I-series current sensor one T11, the I-series current sensor two T12, and the fourth normally closed contact K10E of the I-series relay.

[0127] Therefore, when the I-series track electronic actuator is working normally and the II-series track electronic actuator fails, the system is in a dual-main redundancy working state. The I-series track electronic actuator receives the failure conditions of the II-series track electronic actuator, and the II-series track electronic actuator receives the normal working conditions of the I-series track electronic actuator. Through the redundancy switching function, it connects the second normally closed contact K10C of the I-series relay, I-series impedance one Z11, I-series impedance two Z12, I-series current sensor one T11, and I-series current sensor two T12, and disconnects the circuit matching impedance and current sensor of the II-series track electronic actuator. In this state, the track circuit matching impedance is I-series impedance one Z11 plus I-series impedance two Z12, and the collected current is: ,

[0128] In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator;

[0129] At this time, the II-series impedance Z21 of the II-series track electronic actuator is energized by the II-series relay coil K20A, causing the second normally closed contact K20C of the II-series relay to open and the third normally open contact K20D of the II-series relay to close, resulting in an open circuit. Meanwhile, the II-series impedance of the II-series track electronic actuator is de-energized by the I-series relay coil K10A, causing the fourth normally closed contact K10E of the I-series relay to close and the third normally open contact K20D of the II-series relay to close, resulting in a short circuit. The matching impedance of the II-series track electronic actuator is not connected to the track circuit, and the primary sides of the II-series current sensor T21 and the II-series current sensor T22 of the II-series track electronic actuator are short-circuited. Therefore, the current collected by the II-series track electronic actuator is 0.

[0130] (3) When the I-series track electronic actuator is working normally, and the II-series track electronic actuator is offline (module removed), such as Figure 4 As shown, the dual-master redundancy switching implementation method is as follows:

[0131] When the I-series track electronic actuator receives the offline working condition of the II-series track electronic actuator, the I-series relay coil K10A loses its magnetism and falls, the I-series relay second normally closed contact K10C and the I-series relay fourth normally closed contact K10E close, and the I-series relay third normally open contact K10D opens.

[0132] The current acquisition logic is as follows: The track status information is transmitted to the track voltage negative terminal DY- after passing through the track voltage positive terminal DY+, the second normally closed contact K10C of the I-series relay, the I-series impedance one Z11, the I-series impedance two Z12, the I-series current sensor one T11, the I-series current sensor two T12, and the fourth normally closed contact K10E of the I-series relay.

[0133] Therefore, when the I-series track electronic actuator is working normally and the II-series track electronic actuator is offline, the system is in a dual-main redundancy working state. The I-series relay of the I-series track electronic actuator receives the offline working condition of the II-series track electronic actuator. When the II-series track electronic actuator goes offline, through the redundancy switching function, the I-series impedance one Z11, I-series impedance two Z12, I-series current sensor one T11, and I-series current sensor two T12 of the I-series track electronic actuator are connected, and the circuit matching impedance and current sensor of the II-series track electronic actuator are deactivated. In this state, the track circuit matching impedance is I-series impedance one Z11 plus I-series impedance two Z12, and the collected current is: ,

[0134] In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator;

[0135] At this time, since the II-series track electronic actuator is offline, the current collected by the II-series track electronic actuator is empty.

[0136] (4) If the I-series track electronic actuator malfunctions, and the II-series track electronic actuator is working normally, such as Figure 5 As shown, the dual-master redundancy switching implementation method is as follows:

[0137] The II-series track electronic actuator receives the fault operating conditions of the I-series track electronic actuator. The I-series fault relay disconnects the I-series power supply I_DY1, the II-series relay coil K20A loses its magnetism and falls, the second normally closed contact K20C and the fourth normally closed contact K20E of the II-series relay close, and the third normally open contact K20D of the II-series relay opens.

[0138] When the I-series track electronic actuator receives the normal operating conditions of the II-series track electronic actuator, the II-series fault relay connects the II-series power supply II_DY1, the I-series relay coil K10A is energized and pulled up, the second normally closed contact K10C and the fourth normally closed contact K10E of the I-series relay open, and the third normally open contact K10D of the I-series relay closes.

[0139] The current acquisition logic is as follows: The track status information is transmitted to the track voltage negative terminal DY- after passing through the track voltage positive terminal DY+, the second normally closed contact K20C of the II-series relay, the II-series impedance one Z21, the II-series impedance two Z22, the II-series current sensor one T21, and the II-series current sensor two T22.

[0140] Therefore, when the I-series track electronic actuator fails while the II-series track electronic actuator operates normally, the system is in a dual-main redundancy state. The II-series relay of the II-series track electronic actuator receives the failure condition of the I-series track electronic actuator, and the I-series relay of the I-series track electronic actuator receives the normal operation condition of the II-series track electronic actuator. Through the redundancy switching function, the II-series impedance one Z21, II-series impedance two Z22, II-series current sensor one T21, and II-series current sensor two T22 of the II-series track electronic actuator are connected, and the circuit matching impedance and current sensor of the I-series track electronic actuator are disconnected. In this state, the track circuit matching impedance is II-series impedance one Z21 and II-series impedance two Z22, and the collected current is: ,

[0141] In the formula, Z21 is the first impedance of the II system; Z22 is the second impedance of the II system; This is the status voltage signal for the track section; Track section current signals acquired by the II-series track electronic actuator;

[0142] At this time, the I-series impedance Z11 of the I-series track electronic actuator is pulled up by the excitation of the I-series relay coil K10A, the second normally closed contact K10C of the I-series relay is open, and the third normally open contact K10D of the I-series relay is closed, thus being in an open circuit state. The I-series impedance Z12 of the I-series track electronic actuator is dropped by the demagnetization of the II-series relay coil K20A, and the third normally open contact K20D of the II-series relay is open, thus being in an open circuit state. The matching impedance of the I-series track electronic actuator is not connected to the track circuit, and the primary side of the current sensor of the I-series track electronic actuator is open. Therefore, the current collected by the I-series track electronic actuator is 0.

[0143] (5) When the I-series track electronic actuator is offline and the II-series track electronic actuator is working normally, such as Figure 6 As shown, the dual-master redundancy switching implementation method is as follows:

[0144] When the II-series track electronic actuator receives the offline working conditions of the I-series track electronic actuator, the II-series relay coil K20A loses its magnetism and falls, the second normally closed contact K20C and the fourth normally closed contact K20E of the II-series relay close, and the third normally open contact K20D of the II-series relay opens.

[0145] The current acquisition logic is as follows: The track status information is transmitted to the track voltage negative terminal DY- after passing through the track voltage positive terminal DY+, the second normally closed contact K20C of the II-series relay, the II-series impedance one Z21, the II-series impedance two Z22, the II-series current sensor one T21, and the II-series current sensor two T22.

[0146] Therefore, when the I-series track electronic actuator is offline (module removed) and the II-series track electronic actuator is working normally, the system is in a dual-main redundancy working state. The II-series relay coil K20A of the II-series track electronic actuator receives the offline working condition of the I-series track electronic actuator. When the I-series track electronic actuator goes offline, through the redundancy switching function, the II-series track electronic actuator circuit matching impedances I-Z21, II-series impedance II-Z22, II-series current sensor I-T21, and II-series current sensor II-T22 are connected, and the I-series track electronic actuator circuit matching impedances and current sensors are deactivated. In this state, the track current matching impedance is the sum of II-series impedance I-Z21 and II-series impedance II-Z22, and the collected current is: ,

[0147] In the formula, Z21 is the first impedance of the II system; Z22 is the second impedance of the II system; This is the status voltage signal for the track section; Track section current signals acquired by the II-series track electronic actuator;

[0148] At this time, the I-series track electronic actuator is offline, and the current acquisition of the I-series track electronic actuator is empty.

[0149] (6) When both the I-series and II-series track electronic actuators fail, such as Figure 7 As shown, the dual-master redundancy switching implementation method is as follows:

[0150] The I-series track electronic actuator receives the fault working conditions of the II-series track electronic actuator. The II-series fault relay disconnects the II-series power supply II_DY1. The I-series relay coil K10A loses its magnetism and falls. The I-series relay second normally closed contact K10C and the I-series relay fourth normally closed contact K10E close. The I-series relay third normally open contact K10D opens.

[0151] The II-series track electronic actuator receives the fault operating conditions of the I-series track electronic actuator. The I-series fault relay disconnects the I-series power supply I_DY1, the II-series relay coil K20A loses its magnetism and falls, the second normally closed contact K20C and the fourth normally closed contact K20E of the II-series relay close, and the third normally open contact K20D of the II-series relay opens.

[0152] The current acquisition logic is as follows: The track status information is transmitted to the track voltage negative terminal DY- after passing through the track voltage positive terminal DY+, the second normally closed contact K10C of the I-series relay, the I-series impedance one Z11, the I-series impedance two Z12, the I-series current sensor one T11, the I-series current sensor two T12, and the fourth normally closed contact K10E of the I-series relay.

[0153] The track status information is transmitted to the negative track voltage DY- via the positive track voltage terminal DY+, the second normally closed contact K20C of the II-series relay, the first II-series impedance Z21, the second II-series impedance Z22, the first II-series current sensor T21, and the second II-series current sensor T22.

[0154] Therefore, when both the I-series and II-series track electronic actuators fail, the system operates in a dual-main redundancy mode. The I-series relay coil K10A of the I-series track electronic actuator receives the failure conditions of the II-series track electronic actuator, and the II-series relay coil K20A of the II-series track electronic actuator receives the failure conditions of the I-series track electronic actuator. Through the redundancy switching function, the I-series impedances Z11, Z12, T11, and T12 of the I-series track electronic actuator are connected, while the II-series impedances Z21, Z22, T21, and T22 of the II-series track electronic actuator are connected. In this state, the track circuit matching impedance is the parallel impedance of I-series impedance Z11 plus I-series impedance Z12 and II-series impedance Z21 plus II-series impedance Z22. The current collected by the I-series track electronic actuator is: ,

[0155] In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; The track section current signal is collected by the I-series track electronic actuator; due to a fault in the I-series track electronic actuator, the system's matching impedance changes. The voltage has changed, so the current data collected under fault conditions is unusable;

[0156] The current collected by the II-series orbital electronic actuator is: ,

[0157] In the formula, Z21 is the first impedance of the II system; Z22 is the second impedance of the II system; This is the status voltage signal for the track section; The track section current signal is collected by the II-series track electronic actuator; due to a fault in the II-series track electronic actuator, the system's matching impedance changes. The voltage has changed, so the current data collected under fault conditions is unusable.

[0158] (7) When the I-series track electronic actuator is working alone, such as Figure 8 As shown, the dual-master redundancy switching implementation method is as follows:

[0159] The I-series track electronic actuator is working normally, and the I-series relay coil K10A loses its magnetism and falls.

[0160] The current acquisition logic is as follows: the track status information is transmitted to the track voltage negative terminal DY- after passing through the track voltage positive terminal DY+, I-system impedance one Z11, I-system impedance two Z12, I-system current sensor one T11, and I-system current sensor two T12.

[0161] Therefore, when the I-series track electronic actuator unit operates independently, the system is in stand-alone operation mode. The I-series relay coil K10A, normally in operation, loses its magnetism and falls. In this state, the track circuit matching impedance is the sum of I-series impedance one Z11 and I-series impedance two Z12. The collected current is: ,

[0162] In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator;

[0163] Among them, the II series track electronic actuator operates as a single unit, and the working process is the same as that of the I series track electronic actuator, which will not be described again here.

[0164] Under multiple redundancy switching modes, the track section status voltage signal during the switching process The impedances of Z11, Z12, Z21, and Z22 remain constant, and the impedances of Z11, Z12, Z21, and Z22 are all the same. Therefore, the track section current signals collected by the I-series track electronic actuators and the II-series track electronic actuators also remain constant.

[0165] Since the acquisition environment and conditions are identical, the track section current signals acquired by the I-series and II-series track electronic actuators are... and It is always the same.

[0166] In summary, this invention discloses a parallel dual-master redundancy switching system for track electronic actuators and its implementation method. By setting up a parallel dual-master redundancy switching system for I-series and II-series track electronic actuators, the track status information collected by the two systems during current acquisition is identical, ensuring consistency. Furthermore, the parallel dual-master redundancy switching system maintains the same matching impedance and consistent acquisition circuit parameters under different operating states (except when both systems are faulty), eliminating the problem of asynchronous states between the two systems after impedance matching and reducing the influencing factors on track section status acquisition.

[0167] Furthermore, in this invention, the acquisition and redundancy switching of track section status are performed only between the two track electronic execution units, without the need for other redundant equipment, which simplifies the structure and principle of the entire system. Moreover, in the parallel dual-master redundancy switching system, if one of the systems fails during dual-system operation, it automatically switches to the normal equipment of the other system to continue acquisition. At the same time, the faulty equipment supports hot-swappable replacement, and after the replacement is completed, it automatically switches back to dual-system acquisition.

[0168] Furthermore, by setting up a control module, the track electronic execution unit uploads the collected track section status information to the interlocking machine via a network, thereby realizing the monitoring of track section status information. Moreover, the entire system of this invention can be used in existing single-set (system) control systems and dual-set (system) redundant control systems without any additional modifications, reducing the types of models and versions, and lowering the operation and maintenance costs.

Claims

1. A parallel dual-master redundancy switching system for track electronic actuators, characterized in that, It includes the I-series track electronic actuator, the II-series track electronic actuator, and a wiring backplane. Both the I-series and II-series track electronic actuators are plugged into the wiring backplane. The I-series track electronic actuator includes I-series power supply I, I-series relay, I-series impedance I, I-series impedance II, I-series current acquisition and sensing circuit, I-series control module, I-series fault relay and I-series main and backup status acquisition circuit. The I-series fault relay includes an I-series fault relay coil and an I-series fault relay contact; the I-series relay includes an I-series relay coil, an I-series relay second normally closed contact, an I-series relay third normally open contact, and an I-series relay fourth normally closed contact. The second normally closed contact of the I-series relay is connected to I-series impedance one, I-series impedance one is connected to I-series impedance two, the two ends of the third normally open contact of the I-series relay are respectively connected between I-series impedance one and I-series impedance two and the second normally closed contact of the I-series relay, I-series impedance two is connected to the fourth normally closed contact of the I-series relay, an I-series current acquisition sensing circuit is connected between I-series impedance two and the fourth normally closed contact of the I-series relay, an I-series control module is connected to the I-series current acquisition sensing circuit, and the I-series control module is respectively connected to the I-series fault relay coil and the I-series main / standby status acquisition circuit; The II-series track electronic actuator includes II-series power supply one, II-series relays, II-series impedance one, II-series impedance two, II-series current acquisition and sensing circuit, II-series control module, II-series fault relay, and II-series main and backup status acquisition circuit; the II-series fault relay includes II-series fault relay coil and II-series fault relay contact; the II-series relay includes II-series relay coil, II-series relay second normally closed contact, II-series relay third normally open contact, and II-series relay fourth normally closed contact; The second normally closed contact of the II-series relay is connected to the second normally closed contact of the I-series relay and the II-series impedance one. The II-series impedance one is connected to the II-series impedance two. The two ends of the third normally open contact of the II-series relay are connected to the I-series current acquisition and sensing circuit between the II-series impedance one and the II-series impedance two. The II-series impedance two is connected to the fourth normally closed contact of the II-series relay. The II-series current acquisition and sensing circuit is connected between the II-series impedance two and the fourth normally closed contact of the II-series relay. The II-series current acquisition and sensing circuit is connected to the II-series control module and the fourth normally closed contact of the I-series relay. The II-series control module is connected to the II-series fault relay coil and the II-series main / standby status acquisition circuit. The second normally closed contact of the II-series relay is connected to the positive terminal of the rail voltage, and the second normally closed contact of the I-series relay is connected to the negative terminal of the rail voltage. The I-series power supply, the I-series fault relay contact, the II-series relay coil, the I-series coil, the II-series fault relay contact, and the II-series power supply are connected together in sequence. The II-series relay coil and the I-series coil are connected to the common ground. Among them, the impedance values ​​of I-system impedance one, I-system impedance two, II-system impedance one and II-system impedance two are equal.

2. The parallel dual-master redundancy switching system for track electronic actuators according to claim 1, characterized in that, The I-series current acquisition sensing circuit includes I-series current sensor 1, I-series current sensor 2, I-series adjustment resistor 1, and I-series adjustment resistor 2. The primary sides of I-series current sensor 1 and I-series current sensor 2 are connected in series and then connected between I-series impedance 2 and the fourth normally closed contact of the I-series relay. I-series adjustment resistor 1 is connected in parallel across the secondary side of I-series current sensor 1 and is connected to the I-series control module. I-series adjustment resistor 2 is connected in parallel across the secondary side of I-series current sensor 2 and is connected to the I-series control module.

3. The parallel dual-master redundancy switching system for track electronic actuators according to claim 1, characterized in that, The I-series main / standby status acquisition circuit includes an I-series power supply II, an I-series current-limiting resistor, and an I-series relay first normally open contact. The I-series power supply II, the I-series current-limiting resistor, and the I-series relay first normally open contact are connected in series. The I-series relay first normally open contact is grounded. The I-series control module is connected between the I-series current-limiting resistor and the I-series relay first normally open contact.

4. The parallel dual-master redundancy switching system for track electronic actuators according to claim 1, characterized in that, The I-series control module includes the ICPU and the I-interlocking unit. The I-interlocking unit, the I-series current acquisition and sensing circuit, the I-series fault relay coil, and the I-series main and backup status acquisition circuit are all connected to the ICPU.

5. The parallel dual-master redundancy switching system for track electronic actuators according to claim 1, characterized in that, The II-series current acquisition sensing circuit includes a II-series current sensor 1, a II-series current sensor 2, a II-series adjustment resistor 1, and a II-series adjustment resistor 2. The primary windings of the II-series current sensor 1 and the II-series current sensor 2 are connected in series and then connected between the II-series impedance 2 and the fourth normally closed contact of the II-series relay. The secondary winding of the II-series current sensor 1 is connected in parallel with the II-series adjustment resistor 1, which is connected to the II-series control module. The secondary winding of the II-series current sensor 2 is connected in parallel with the II-series adjustment resistor 2, which is connected to the II-series control module.

6. The parallel dual-master redundancy switching system for track electronic actuators according to claim 1, characterized in that, The II-series main / standby status acquisition circuit includes a II-series power supply, a II-series current-limiting resistor, and a II-series relay first normally open contact. The II-series power supply, the II-series current-limiting resistor, and the II-series relay first normally open contact are connected in series. The II-series relay first normally open contact is grounded. The II-series control module is connected between the II-series current-limiting resistor and the II-series relay first normally open contact.

7. The parallel dual-master redundancy switching system for track electronic actuators according to claim 1, characterized in that, The II series control module includes the II CPU and the II interlocking machine. The II interlocking machine, the II series current acquisition and sensing circuit, the II series fault relay coil, and the II series main and standby status acquisition circuit are all connected to the II CPU.

8. A method for implementing parallel dual-master redundancy switching of a track electronic actuator, characterized in that, The parallel dual-master redundancy switching system for track electronic actuators according to any one of claims 1-7 includes, (1) When both the I-series and II-series track electronic actuators are working normally, the dual-master redundancy switching method is as follows: When the I-series track electronic actuator receives the normal operating conditions of the II-series track electronic actuator, the II-series fault relay connects to the II-series power supply, the I-series relay coil is energized and pulled up, the second normally closed contact and the fourth normally closed contact of the I-series relay open, and the third normally open contact of the I-series relay closes. The II-series track electronic actuator receives the normal operating conditions of the I-series track electronic actuator. The I-series fault relay connects to the I-series power supply, the II-series relay coil is energized and pulled up, the second normally closed contact and the fourth normally closed contact of the II-series relay open, and the third normally open contact of the II-series relay closes. (2) When the I-series track electronic actuator is working normally and the II-series track electronic actuator fails, the dual-master redundancy switching method is as follows: When the I-series track electronic actuator receives the fault operating conditions of the II-series track electronic actuator, the II-series fault relay disconnects the II-series power supply, the I-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the I-series relay close, and the third normally open contact of the I-series relay opens. The II-series track electronic actuator receives the normal operating conditions of the I-series track electronic actuator. The I-series fault relay connects to the I-series power supply, the II-series relay coil is energized and pulled up, the second normally closed contact and the fourth normally closed contact of the II-series relay open, and the third normally open contact of the II-series relay closes. (3) When the I-series track electronic actuator is working normally and the II-series track electronic actuator is offline, the dual-master redundancy switching method is as follows: When the I-series track electronic actuator receives the offline working conditions of the II-series track electronic actuator, the I-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the I-series relay close, and the third normally open contact of the I-series relay opens. (4) When the I-series track electronic actuator fails and the II-series track electronic actuator is working normally, the dual-master redundancy switching method is as follows: The II-series track electronic actuator receives the fault operating conditions of the I-series track electronic actuator. The I-series fault relay disconnects the I-series power supply, the II-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the II-series relay close, and the third normally open contact of the II-series relay opens. When the I-series track electronic actuator receives the normal operating conditions of the II-series track electronic actuator, the II-series fault relay connects to the II-series power supply, the I-series relay coil is energized and pulled up, the second normally closed contact and the fourth normally closed contact of the I-series relay open, and the third normally open contact of the I-series relay closes. (5) When the I-series track electronic actuator is offline and the II-series track electronic actuator is working normally, the dual-master redundancy switching method is as follows: When the II-series track electronic actuator receives the offline working conditions of the I-series track electronic actuator, the II-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the II-series relay close, and the third normally open contact of the II-series relay opens. (6) When both the I-series and II-series track electronic actuators fail, the dual-master redundancy switching method is as follows: When the I-series track electronic actuator receives the fault operating conditions of the II-series track electronic actuator, the II-series fault relay disconnects the II-series power supply, the I-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the I-series relay close, and the third normally open contact of the I-series relay opens. The II-series track electronic actuator receives the fault operating conditions of the I-series track electronic actuator. The I-series fault relay disconnects the I-series power supply, the II-series relay coil loses its magnetism and falls, the second normally closed contact and the fourth normally closed contact of the II-series relay close, and the third normally open contact of the II-series relay opens. (7) When the I-series track electronic actuator is working alone, the dual-master redundancy switching method is as follows: The I-series track electronic actuator is working normally, but the I-series relay coil loses its magnetism and falls.

9. The method for parallel dual-master redundancy switching of the track electronic actuator according to claim 8, characterized in that, The current acquisition logic is as follows: (1) When both the I-series and II-series track electronic actuators are working normally, the current acquisition logic is as follows: The track status information is transmitted to the negative track voltage via the positive terminal of the track voltage, the third normally open contact of the I-series relay, the second I-series impedance, the first I-series current sensor, the second I-series current sensor, the third normally open contact of the II-series relay, the second II-series impedance, the first II-series current sensor, and the second II-series current sensor. (2) When the I-series track electronic actuator is working normally and the II-series track electronic actuator is malfunctioning, the current acquisition logic is as follows: The track status information is transmitted to the negative track voltage via the positive terminal of the track voltage, the second normally closed contact of the I-series relay, the I-series impedance one, the I-series impedance two, the I-series current sensor one, the I-series current sensor two, and the fourth normally closed contact of the I-series relay. (3) When the I-series track electronic actuator is working normally and the II-series track electronic actuator is offline, the current acquisition logic is as follows: The track status information is transmitted to the negative track voltage via the positive terminal of the track voltage, the second normally closed contact of the I-series relay, the I-series impedance one, the I-series impedance two, the I-series current sensor one, the I-series current sensor two, and the fourth normally closed contact of the I-series relay. (4) When the I-series track electronic actuator fails and the II-series track electronic actuator is working normally, the current acquisition logic is as follows: The track status information is transmitted to the negative track voltage terminal via the positive terminal of the track voltage, the second normally closed contact of the II-series relay, the II-series impedance one, the II-series impedance two, the II-series current sensor one, and the II-series current sensor two. (5) When the I-series track electronic actuator is offline and the II-series track electronic actuator is working normally, the current acquisition logic is as follows: The track status information is transmitted to the negative track voltage terminal via the positive terminal of the track voltage, the second normally closed contact of the II-series relay, the II-series impedance one, the II-series impedance two, the II-series current sensor one, and the II-series current sensor two. (6) When both the I-series and II-series track electronic actuators fail, the current acquisition logic is as follows: The track status information is transmitted to the negative track voltage via the positive terminal of the track voltage, the second normally closed contact of the I-series relay, the I-series impedance one, the I-series impedance two, the I-series current sensor one, the I-series current sensor two, and the fourth normally closed contact of the I-series relay. The track status information is transmitted to the negative track voltage terminal via the positive terminal of the track voltage, the second normally closed contact of the II-series relay, the II-series impedance one, the II-series impedance two, the II-series current sensor one, and the II-series current sensor two. (7) When the I-series track electronic actuator is working alone, the current acquisition logic is as follows: Track status information is transmitted to the negative terminal of the track voltage via the positive terminal of the track voltage, I-series impedance one, I-series impedance two, I-series current sensor one, and I-series current sensor two.

10. The method for parallel dual-master redundancy switching of the track electronic actuator according to claim 9, characterized in that, The collected current is as follows: (1) When both the I-series and II-series track electronic actuators are working normally, the currents collected by the two systems are: and , In the formula, Z12 is the impedance of system I; Z22 is the impedance of system II; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator; Track section current signals acquired by the II-series track electronic actuator; (2) When the I-series track electronic actuator is working normally and the II-series track electronic actuator fails, the current collected by the I-series track electronic actuator is: , In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator; (3) When the I-series track electronic actuator is working normally and the II-series track electronic actuator is offline, the current collected by the I-series track electronic actuator is: , In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator; (4) When the I-series track electronic actuator malfunctions and the II-series track electronic actuator is working normally, the current collected by the II-series track electronic actuator is: , In the formula, Z21 is the first impedance of the II system; Z22 is the second impedance of the II system; This is the status voltage signal for the track section; Track section current signals acquired by the II-series track electronic actuator; (5) When the I-series track electronic actuator is offline and the II-series track electronic actuator is working normally, the current collected by the II-series track electronic actuator is: , In the formula, Z21 is the first impedance of the II system; Z22 is the second impedance of the II system; This is the status voltage signal for the track section; Track section current signals acquired by the II-series track electronic actuator; (6) When both the I-series and II-series track electronic actuators fail, the current collected by the I-series track electronic actuator is: , In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; The track section current signal was collected by the I-series track electronic actuator; due to a malfunction of the I-series track electronic actuator, the collected current data is unusable. The current collected by the II-series orbital electronic actuator is: , In the formula, Z21 is the first impedance of the II system; Z22 is the second impedance of the II system; This is the status voltage signal for the track section; The track section current signal was collected by the II-series track electronic actuator; due to a malfunction of the II-series track electronic actuator, the collected current data is unusable. (7) When the I-series track electronic actuator is working alone, the current collected by the I-series track electronic actuator is: , In the formula, Z11 is the I-system impedance one; Z12 is the I-system impedance two; This is the status voltage signal for the track section; Track section current signals acquired by the I-series track electronic actuator; In multiple redundancy switching modes, the track section state voltage signal remains unchanged during the switching process. At the same time, the impedances of Z11, Z12, Z21, and Z22 are all the same. Therefore, the track section current signal collected by the I-series track electronic actuator and the II-series track electronic actuator also remains unchanged. Since the acquisition environment and conditions are identical, the track section current signals acquired by the I-series and II-series track electronic actuators are... and It is always the same.

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