Control system and turnout

Abstract

The utility model relates to a control system and a turnout, and relates to the technical field of industrial control, the control system comprises a core controller and target controllers, the target controllers comprise a first target controller and a second target controller, and the first target controller and the second target controller are respectively suitable for being connected with a control mechanism. The core controller is connected with the first target controller and the second target controller. And the core controller is used for controlling the first target controller to control the target component to execute the target operation through the control mechanism, or controlling the second target controller to control the target component to execute the target operation through the control mechanism. According to the invention, by adding a set of redundant target controllers, under the condition that the first target controller breaks down, the target part can be controlled to execute the target operation through the second target controller, so that the safety and reliability of the control system for controlling the target part are improved, the stability of the control system is improved, and the cost is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of industrial control technology, and more particularly, to a control system and a turnout. Background Art

[0002] The safety and reliability of a control system are crucial for the normal operation of a control mechanism. Usually, a 2-out-of-2 architecture is adopted in the control system, which means that two identical core controllers control the same target controller. The two identical core controllers perform operations simultaneously, compare the operation results, and only determine the result to be valid after the results are consistent, so as to instruct the target controller to control the control mechanism to execute a control action. However, as long as a certain component fails and affects the normal operation of the core controller, the entire control system will stop the control action. For example, in rail transit, a turnout translates a movable beam to a specified position through a driving device, and the control mechanism locks it to restrict the movement of the movable beam, thereby realizing the docking and line change of the turnout beam and the adjacent track beam to meet the line change requirements of trains between different lines. When a train passes through the turnout movable beam, stable driving conditions are required, and the control mechanism is an important device to ensure the stability of the turnout movable beam. Whether the control mechanism can work normally directly affects the stability of the turnout. If the control action stops, it will lead to delays or even suspension of the train operation plan on the line.

[0003] To further improve the safety and reliability of the control system, related technologies adopt a 2-by-2-out-of-2 architecture or a 3-out-of-2 architecture. Although the failure probability of the control system is reduced, the cost increases exponentially. Summary of the Utility Model

[0004] The purpose of the present disclosure is to provide a control system and a turnout for improving the safety and stability of the control system at a lower cost.

[0005] According to the first aspect of the embodiments of the present disclosure, a control system is provided. The control system includes a core controller and a target controller. The target controller includes a first target controller and a second target controller. The first target controller and the second target controller are respectively adapted to be connected to a control mechanism.

[0006] The core controller is respectively connected to the first target controller and the second target controller. The core controller is configured to control the first target controller to control a target component to perform a target operation through the control mechanism, or to control the second target controller to control the target component to perform the target operation through the control mechanism.

[0007] Optionally, the target component is a turnout, and the target operation is unlocking or locking. The core controller is configured to control the first target controller to unlock or lock the turnout through the control mechanism, or to control the second target controller to unlock or lock the turnout through the control mechanism.

[0008] Optionally, the core controller includes a first core controller and a second core controller;

[0009] The first core controller and the second core controller are respectively connected to the first target controller, and the first core controller and the second core controller are respectively connected to the second target controller;

[0010] The first core controller and the second core controller are jointly configured to control the first target controller to unlock or lock the turnout through the control mechanism; or, jointly configured to control the second target controller to unlock or lock the turnout through the control mechanism.

[0011] Optionally, the first target controller includes a first main switch device, a first unlocking switch device, and a first locking switch device, and the second target controller includes a second main switch device, a second unlocking switch device, and a second locking switch device;

[0012] The first core controller is connected to the first main switch device, and the second core controller is connected to the second main switch device;

[0013] The first core controller and the second core controller are respectively connected to the first unlocking switch device, the first core controller and the second core controller are respectively connected to the first locking switch device, the first core controller and the second core controller are respectively connected to the second unlocking switch device, and the first core controller and the second core controller are respectively connected to the second locking switch device;

[0014] The first core controller and the second core controller are jointly configured to control the first unlocking switch device to unlock the turnout through the control mechanism; or, jointly configured to control the first locking switch device to lock the turnout through the control mechanism; or, jointly configured to control the second unlocking switch device to unlock the turnout through the control mechanism; or, jointly configured to control the second locking switch device to lock the turnout through the control mechanism.

[0015] Optionally, the first target controller includes a first main switch device, a first unlocking switch device, and a first locking switch device, and the second target controller includes a second main switch device, a second unlocking switch device, and a second locking switch device;

[0016] The core controller is respectively connected to the first unlocking switch device, the first locking switch device, the second unlocking switch device and the second locking switch device; the first unlocking switch device, the first locking switch device, the second unlocking switch device and the second locking switch device are respectively adapted to be connected to the control mechanism.

[0017] Optionally, the first unlocking switch device includes a first unlocking relay and a first unlocking contactor connected to each other, the first locking switch device includes a first locking relay and a first locking contactor connected to each other, the second unlocking switch device includes a second unlocking relay and a second unlocking contactor connected to each other, and the second locking switch device includes a second locking relay and a second locking contactor connected to each other;

[0018] The first unlocking relay is used to control the closing or opening of the first unlocking contactor, and the first locking relay is used to control the closing or opening of the first locking contactor;

[0019] The second unlocking relay is used to control the closing or opening of the second unlocking contactor, and the second locking relay is used to control the closing or opening of the second locking contactor.

[0020] Optionally, the first target controller further includes a first thermal protection relay, and the second target controller further includes a second thermal protection relay; the first thermal protection relay and the second thermal protection relay automatically open when the current in the line where they are located is greater than a preset current threshold;

[0021] The first thermal protection relay is connected between the first main switch device and the first unlocking switch device, and the first thermal protection relay is also connected between the first main switch device and the first locking switch device;

[0022] The second thermal protection relay is connected between the second main switch device and the second unlocking switch device, and the second thermal protection relay is also connected between the second main switch device and the second locking switch device.

[0023] Optionally, in the case of a failure of the first target controller, the first main switch device, the first unlocking switch device and the first locking switch device open, the second main switch device closes, the second unlocking switch device or the second locking switch device closes, and the second target controller unlocks or locks the turnout through the control mechanism.

[0024] Optionally, when the first thermal protection relay is disconnected, the first main switch device, the first unlocking switch device, and the first locking switch device are disconnected, the second main switch device is closed, the second unlocking switch device or the second locking switch device is closed, and the second target controller unlocks or locks the turnout through the control mechanism.

[0025] Optionally, when a fault occurs in the line between the first target controller and the control mechanism, the first main switch device, the first unlocking switch device, and the first locking switch device are disconnected, the second main switch device is closed, the second unlocking switch device or the second locking switch device is closed, and the second target controller unlocks or locks the turnout through the control mechanism.

[0026] Optionally, the power supply is respectively connected to the first unlocking switch device and the first locking switch device through the first main switch device, and the power supply is respectively connected to the second unlocking switch device and the second locking switch device through the second main switch device.

[0027] Optionally, the first main switch device includes a first main relay and a first main contactor, and the second main switch device includes a second main relay and a second main contactor;

[0028] When the first main relay is closed, the first main contactor is closed, and the power supply supplies power to the first target controller and the control mechanism; when the first main relay is disconnected, the first main contactor is disconnected, and the power supply stops supplying power to the first target controller and the control mechanism;

[0029] When the second main relay is closed, the second main contactor is closed, and the power supply supplies power to the second target controller and the control mechanism; when the second main relay is disconnected, the second main contactor is disconnected, and the power supply stops supplying power to the second target controller and the control mechanism.

[0030] Through the above technical solution, the control system in the present disclosure includes a core controller, a target controller, and a control mechanism. The target controller includes a first target controller and a second target controller. The first target controller and the second target controller are respectively connected to the control mechanism, and the core controller is respectively connected to the first target controller and the second target controller. The core controller is configured to control the first target controller to control a target component to perform a target operation through the control mechanism, or to control the second target controller to control the target component to perform the target operation through the control mechanism. By adding a set of redundant target controllers, in the case where the first target controller fails, the second target controller can be controlled to control the target component to perform the target operation through the control mechanism, improving the safety and reliability of the control system for controlling the target component, and further improving the stability of the control system. Moreover, compared with the 2-out-of-2 redundancy system, the present disclosure does not require adding a complete set of redundant control systems, and compared with the 2-out-of-3 architecture, it does not require adding a set of redundant core controllers, reducing the cost while ensuring the stability of the control system.

[0031] Other features and advantages of the present disclosure will be described in detail in the following specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0033] Figure 1 is a schematic diagram of a control system shown according to an embodiment of the present disclosure.

[0034] Figure 2 is a circuit diagram of a control system shown according to an embodiment of the present disclosure.

[0035] Figure 3 is a block diagram of a control system shown according to an exemplary embodiment.

[0036] Figure 4 is a block diagram of another control system shown according to an exemplary embodiment.

[0037] Figure 5 is a block diagram of another control system shown according to an exemplary embodiment.

[0038] Figure 6 is a block diagram of another control system shown according to an exemplary embodiment.

[0039] Figure 7 is a block diagram of another control system shown according to an exemplary embodiment.

[0040] Figure 8It is a block diagram of another control system shown according to an exemplary embodiment.

[0041] Figure 9 It is a flowchart of redundant switching of a control system shown according to an exemplary embodiment.

[0042] Figure 10 It is a block diagram of a turnout shown according to an exemplary embodiment.

[0043] Description of Reference Numerals

[0044] Control system 100; Core controller 101; Target controller 102; Control mechanism 200; First target controller 1021; Second target controller 1022; First core controller 1011; Second core controller 1012; First main switch device 1021a; First unlocking switch device 1021b; First locking switch device 1021c; Second main switch device 1022a; Second unlocking switch device 1022b; Second locking switch device 1022c; First main relay KA6.1; First main contactor KM6.1; Second main relay KA6.4; Second main contactor KM6.4; First unlocking relay KA6.2; First unlocking contactor KM6.2; First locking relay KA6.3; First locking contactor KM6.3; Second unlocking relay KA6.5; Second unlocking contactor KM6.5; Second locking relay KA6.6; Second locking contactor KM6.6; First thermal protection relay FR6; Second thermal protection relay FR7; Power supply 300; Turnout 400. Detailed Description of the Invention

[0045] The following describes in detail the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present disclosure, and are not used to limit the present disclosure.

[0046] Before introducing a control system and a turnout shown in the embodiments of the present disclosure, the application scenarios of the embodiments of the present disclosure will be introduced first.

[0047] The control mechanism mainly consists of a locking groove, a locking pin and a three-phase asynchronous motor, and the motor is controlled by the control system to realize the locking and unlocking actions. Currently, the control system generally adopts a 2-out-of-2 architecture, that is, two identical core controllers are used to control the same target controller. When both of the two identical core controllers require locking or unlocking actions, the target controller will control the control mechanism to perform the locking or unlocking actions, so as to meet the safety level requirements of turnout SIL (Safety Integrity Level) 4.

[0048] The working process of the control mechanism is as follows: After the control system receives the "switch turnout" instruction from the interlocking system of the control center, the main contactor that powers the control mechanism closes. The two core controllers send out an "unlock" instruction, driving the unlock contactor in the target controller to close. The three-phase asynchronous motor drives the locking pin out of the locking groove. After the movable beam moves from the current position to the predetermined position, the two core controllers send out a "lock" instruction, driving the lock contactor in the target controller to close. The locking pin inserts into the locking groove, and a position indication signal is sent to the interlocking system, indicating that the turnout has been successfully switched.

[0049] If a 2oo2 controller is adopted, during the operation of the control mechanism, when there is a circuit overload or a fault in the relay or contactor in the target controller, the working process of the control mechanism will time out, resulting in the failure of the turnout switch and causing an accident in the line operation.

[0050] To solve the system stability problem, a 2oo2-by-2 architecture has emerged, which consists of two redundant 2oo2 control systems. When one of the 2oo2 systems fails, it automatically switches to the other system for operation, achieving continuous operation during a fault. The 2oo2-by-2 architecture combines safety and availability, but the cost is relatively high. Especially for some electrical components with stable quality and low failure probability, configuring two systems is undoubtedly a waste.

[0051] By statistically analyzing the fault data of the turnouts on the existing lines, it is found that the failure rate of the target controller is significantly higher than that of other electrical components. The main reasons are as follows: First, the target controller, especially the contactor contacts, are prone to degradation and failure during operation. The contact failure is mainly caused by arcing erosion. When operating under a certain load condition, the arcing erosion generated will cause degradation of the contact gap and contact pressure, and the performance parameters will change accordingly. Therefore, as the working time increases, the probability of contact failure will also increase. Second, the target controller has a high action frequency. Each time the turnout responds to a control instruction, each target controller will act twice - once for unlocking and locking at the original position, and once for unlocking and locking at the target position. Third, the large number of contacts increases the probability of failure. Each contactor has three pairs of contacts, corresponding to the three-phase electricity of U, V, and W respectively. If any one phase loses power, the locking motor cannot work properly.

[0052] The electrical life of contactors ranges from several hundred thousand times to over a million times. Currently, there is no effective means to monitor their performance, which causes great difficulties in maintenance work. To ensure the economy of the switch control mechanism on the basis of availability and stability, the embodiments of the present disclosure provide a control system that adopts a local redundancy scheme: on the basis of a 2-out-of-2 architecture, only one set is configured for components that are not prone to failure, such as circuit breakers, switching power supplies, programmable logic controllers, etc.; for key components that are prone to failure, such as relays, contactors, and thermal protection relays in the target controller corresponding to the control mechanism, two sets are configured to be redundant with each other, which can not only ensure the stable operation of the product but also save costs.

[0053] As Figure 1 and Figure 2 shown, on the basis of the original 2-out-of-2 control system, the control system in the embodiments of the present disclosure adds a set of redundant control mechanism control devices, that is, the second target controller 1022 mentioned below: including the second main contactor KM6.4 controlled by the second core controller 1012 and the supporting second main relay KA6.4 and thermal relay FR7, the second unlocking contactor KM6.5 and the supporting second unlocking relay KA6.5 jointly controlled by the first core controller 1011 and the second core controller 1012, and the redundant second locking contactor KM6.6 and the supporting second locking relay KA6.6. At the same time, the contact signals of all contactors and their supporting relays in the control system can be used as feedback signals and connected to the PLC input end for fault diagnosis.

[0054] By adding a set of redundant target controllers, the embodiments of the present disclosure can control the second target controller to unlock or lock the switch through the control mechanism in the event of a failure of the first target controller, improving the safety and reliability of the control system for unlocking or locking the switch, and further improving the stability of the switch. And compared with 2-out-of-2, the embodiments of the present disclosure do not need to add a complete set of redundant control systems, and compared with a 3-out-of-2 architecture, do not need to add a set of redundant core controllers, reducing costs while ensuring the stability of the control system.

[0055] Figure 3 is a block diagram of a control system shown according to an exemplary embodiment. As Figure 3 shown, the control system 100 includes a core controller 101 and a target controller 102. The target controller 102 includes a first target controller 1021 and a second target controller 1022. The first target controller 1021 and the second target controller 1022 are respectively adapted to be connected to the control mechanism 200.

[0056] The core controller 101 is respectively connected to the first target controller 1021 and the second target controller 1022. The core controller 101 is configured to control the first target controller 1021 to control the target component to perform a target operation through the control mechanism 200. Alternatively, it is configured to control the second target controller 1022 to control the target component to perform a target operation through the control mechanism 200.

[0057] Exemplarily, the core controller 101 in the embodiments of the present disclosure may be a PLC (Programmable Logic Controller). The first target controller 1021 and the second target controller 1022 may respectively include a plurality of relays and a plurality of contactors. By controlling a specified relay among the plurality of relays, the closing and opening of a specified contactor among the plurality of contactors are controlled to perform a target operation on the control target component. When the first target controller 1021 does not fail, the core controller 101 may control the first target controller 1021 to control the target component to perform a target operation through the control mechanism 200. When the first target controller 1022 fails, the core controller 101 may control the second target controller 1022 to control the target component to perform a target operation through the control mechanism 200. By adding a set of redundant target controllers, the safety and reliability of the control system for controlling the target component to perform a target operation are improved, and thus the stability of the control system is improved. Moreover, compared with the 2-out-of-2 structure, there is no need to add a complete set of redundant control systems, and compared with the 2-out-of-3 structure, there is no need to add a set of redundant core controllers, which reduces the cost while ensuring the stability of the control system.

[0058] The control system in the embodiments of the present disclosure may be a control system of any device in the rail transit field, for example, it may include but is not limited to: the control system of a turnout, the control system of a car washer, the control system of a bogie, and the control system of a disassembly and assembly table.

[0059] Taking the control system 100 as the control system of a turnout as an example, the target component may be a turnout, and the target operation may be an unlocking or locking operation. When the first target controller 1021 does not fail, the core controller 101 may control the first target controller 1021 to unlock or lock the turnout through the control mechanism 200. When the first target controller 1022 fails, the core controller 101 may control the second target controller 1022 to unlock or lock the turnout through the control mechanism 200. By adding a set of redundant target controllers, the safety and reliability of the control system for unlocking or locking the turnout are improved, and thus the stability of the turnout is improved.

[0060] Taking the control system 100 of a car wash machine as an example, the target component can be the brush of the car wash machine, and the target operation can be a moving or rotating operation. When the first target controller 1021 does not malfunction, the core controller 101 can control the first target controller 1021 to move or rotate the brush through the control mechanism 200. When the first target controller 1022 malfunctions, the core controller 101 can control the second target controller 1022 to move or rotate the brush through the control mechanism 200. By adding a set of redundant target controllers, the safety and reliability of the control system for moving or rotating the brush are improved, and thus the stability of the car wash machine is enhanced.

[0061] In summary, the control system in the present disclosure includes a core controller, target controllers, and a control mechanism. The target controllers include a first target controller and a second target controller. The first target controller and the second target controller are respectively connected to the control mechanism, and the core controller is respectively connected to the first target controller and the second target controller. The core controller is configured to control the first target controller to control the target component to perform the target operation through the control mechanism, or to control the second target controller to control the target component to perform the target operation through the control mechanism. In the present disclosure, by adding a set of redundant target controllers, when the first target controller malfunctions, the second target controller can be controlled to control the target component to perform the target operation through the control mechanism, improving the safety and reliability of the control system for controlling the target component, and thus enhancing the stability of the control system. Moreover, compared with the 2-out-of-2 structure, the present disclosure does not require adding a complete set of redundant control systems, and compared with the 3-out-of-2 architecture, it does not require adding a set of redundant core controllers, reducing the cost while ensuring the stability of the control system.

[0062] Figure 4 is a block diagram of another control system shown according to an exemplary embodiment, as Figure 4 shown, the core controller 101 includes a first core controller 1011 and a second core controller 1012.

[0063] The first core controller 1011 and the second core controller 1012 are respectively connected to the first target controller 1021, and the first core controller 1011 and the second core controller 1012 are respectively connected to the second target controller 1022.

[0064] The first core controller 1011 and the second core controller 1012 are jointly configured to control the first target controller 1021, and the first core controller 1011 and the second core controller 1012 are jointly configured to control the second target controller 1022.

[0065] Exemplarily, when the control system 100 receives a turnout signal, due to the SIL4 safety level requirement, the first core controller 1011 and the second core controller 1012 will output control signals simultaneously. These two control signals will be output to the first target controller 1021 or the second target controller 1022 in the form of a logical AND. That is, only when the first core controller 1011 and the second core controller 1012 output control signals simultaneously, will the first target controller 1021 or the second target controller 1022 receive the control signal, thereby meeting the SIL4 safety level requirement of the turnout.

[0066] Figure 5 is a block diagram of another control system shown according to an exemplary embodiment, as Figure 5 shown, the first target controller 1021 includes a first main switch device 1021a, a first unlocking switch device 1021b, and a first locking switch device 1021c, and the second target controller 1022 includes a second main switch device 1022a, a second unlocking switch device 1022b, and a second locking switch device 1022c.

[0067] The first core controller 1011 is connected to the first main switch device 1021a, and the second core controller 1012 is connected to the second main switch device 1022a.

[0068] The first core controller 1011 and the second core controller 1012 are respectively connected to the first unlocking switch device 1021b, the first core controller 1011 and the second core controller 1012 are respectively connected to the first locking switch device 1021c, the first core controller 1011 and the second core controller 1012 are respectively connected to the second unlocking switch device 1022b, and the first core controller 1011 and the second core controller 1012 are respectively connected to the second locking switch device 1022c.

[0069] The first core controller 1011 and the second core controller 1012 are jointly used to control the first unlocking switch device 1021b, the first locking switch device 1021c, the second unlocking switch device 1022b, and the second locking switch device 1022c.

[0070] Exemplarily, the first main switch device 1021a is a control device for supplying power or cutting off power to the target controller 102 and the control mechanism 200. The first core controller 1011 is used to control the closing or opening of the first main switch device 1021a. When the first main switch device 1021a is closed, the circuit of the first target controller 1021 and the control mechanism 200 are powered on. When the first main switch device 1021a is opened, the circuit of the first target controller 1021 and the control mechanism 200 are powered off.

[0071] The first core controller 1011 and the second core controller 1012 will output control signals simultaneously, and these two control signals will be output to the first unlocking switch device 1021b, the first locking switch device 1021c, the second unlocking switch device 1022b or the second locking switch device 1022c in the form of a logical AND to control the closing or opening of the first unlocking switch device 1021b, the first locking switch device 1021c, the second unlocking switch device 1022b or the second locking switch device 1022c.

[0072] Figure 6 is a block diagram of another control system shown according to an exemplary embodiment, as Figure 6 shown, the power supply 300 is respectively connected to the first unlocking switch device 1021b and the first locking switch device 1021c through the first main switch device 1021a, and the first unlocking switch device 1021b and the first locking switch device 1021c are respectively connected to the control mechanism 200.

[0073] The power supply 300 is respectively connected to the second unlocking switch device 1022b and the second locking switch device 1022c through the second main switch device 1022a, and the second unlocking switch device 1022b and the second locking switch device 1022c are respectively connected to the control mechanism 200.

[0074] The first main switch device 1021a includes a connected first main relay KA6.1 and a first main contactor KM6.1, and the second main switch device 1022a includes a connected second main relay KA6.4 and a second main contactor KM6.4.

[0075] Exemplarily, the first core controller 1011 can control the closing or opening of the first main relay KA6.1, and the second core controller 1012 can control the closing or opening of the second main relay KA6.4.

[0076] When the first main relay KA6.1 is closed, the coil of the first main contactor KM6.1 is attracted, and the power supply 300 supplies power to the first target controller 1021 and the control mechanism 200. When the first main relay KA6.1 is opened, the first main contactor KM6.1 is opened, and the power supply 300 stops supplying power to the first target controller 1021 and the control mechanism 200.

[0077] When the second main relay KA6.4 is closed, the coil of the second main contactor KM6.4 is attracted, and the power supply 300 supplies power to the second target controller 1022 and the control mechanism 200. When the second main relay KA6.4 is opened, the second main contactor KM6.4 is opened, and the power supply 300 stops supplying power to the second target controller 1022 and the control mechanism 200.

[0078] Figure 7 is a block diagram of another control system shown according to an exemplary embodiment, as Figure 7 shown, the first unlocking switch device 1021b includes a connected first unlocking relay KA6.2 and a first unlocking contactor KM6.2, the first locking switch device 1021c includes a connected first locking relay KA6.3 and a first locking contactor KM6.3, the second unlocking switch device 1022b includes a connected second unlocking relay KA6.5 and a second unlocking contactor KM6.5, and the second locking switch device 1022c includes a connected second locking relay KA6.6 and a second locking contactor KM6.6.

[0079] The first unlocking relay KA6.2 is used to control the first unlocking contactor KM6.2 to close or open, and the first locking relay KM6.3 is used to control the first locking contactor KM6.3KM6.3 to close or open.

[0080] The second unlocking relay KA6.5 is used to control the second unlocking contactor to close or open, and the second locking relay KA6.6 is used to control the second locking contactor KM6.6 to close or open.

[0081] Exemplarily, the first core controller 1011 and the second core controller 1012 can be jointly used to control the first unlocking relay KA6.2 to close or open, can also be jointly used to control the second locking relay KA6.6 to close or open, can also be jointly used to control the second unlocking relay KA6.5 to close or open, and can also be jointly used to control the second locking relay KA6.6 to close or open.

[0082] When the first unlocking relay KA6.2 is closed, the coil of the first unlocking contactor KM6.2 is attracted. When the first unlocking relay KA6.2 is open, the coil of the first unlocking contactor KM6.2 is open. When the first locking relay KM6.3 is closed, the coil of the first locking contactor KM6.3 is attracted. When the first locking relay KM6.3 is open, the coil of the first locking contactor KM6.3 is open. The control principles of the second unlocking relay KA6.5 and the second locking relay KA6.6 are similar and will not be elaborated here.

[0083] Figure 8 is a block diagram of another control system shown according to an exemplary embodiment, as Figure 8 shown, the first target controller 1021 further includes a first thermal protection relay FR6, and the second target controller 1022 further includes a second thermal protection relay FR7. The first thermal protection relay FR6 and the second thermal protection relay FR7 automatically open when the current in the line where they are located is greater than a preset current threshold.

[0084] The first thermal protection relay FR6 is connected between the first main switch device 1021a and the first unlocking switch device 1021b, and the first thermal protection relay FR6 is also connected between the first main switch device 1021a and the first locking switch device 1021c.

[0085] The second thermal protection relay FR7 is connected between the second main switch device 1022a and the second unlocking switch device 1022b, and the second thermal protection relay FR7 is also connected between the second main switch device 1022a and the second locking switch device 1022c.

[0086] Exemplarily, when the current in the circuit where the first thermal protection relay FR6 is located is greater than the preset current threshold, it automatically disconnects to protect the circuit where the first thermal protection relay FR6 is located from being overloaded. When the current in the circuit where the second thermal protection relay FR7 is located is greater than the preset current threshold, it automatically disconnects to protect the circuit where the second thermal protection relay FR7 is located from being overloaded.

[0087] In some embodiments, in the case of a failure of the first target controller 1021, the first main switch device 1021a, the first unlocking switch device 1021b, and the first locking switch device 1021c are disconnected, the second main switch device 1022a, the second unlocking switch device 1022b, and the second locking switch device 1022c are closed, and the second target controller 1022 unlocks or locks the turnout through the control mechanism 200.

[0088] Exemplarily, the situation of a failure of the first target controller 1021 may include failures of contactors and relays, which mainly include two major problems: non-engagement and non-separation of contactors / relays. Non-engagement includes too low coil voltage, too large contact resistance, open circuit of contacts, etc., and non-separation includes contact welding, phase-to-phase short circuit, etc. The situations of failures of contactors and relays can be divided into the following types:

[0089] 1) Fault diagnosis of the first main relay KA6.1

[0090] Under normal circumstances, after the control system switches to the on-site control mode or receives the turnout actuation command issued by the interlocking system, the first core controller 1011 outputs a control signal, and the first main relay KA6.1 is energized to supply power to the coil of the first main contactor KM6.1.

[0091] Under abnormal circumstances, when the first core controller 1011 outputs a control signal, the first main relay KA6.1 does not operate, or when the control signal output by the first core controller 1011 is not received and the feedback signal of the first main relay KA6.1 is detected. After the above two phenomena last for a time exceeding the fault tolerance time, it can be determined that the first main relay KA6.1 has failed.

[0092] 2) The first main contactor KM6.1 has a fault

[0093] Under normal circumstances, after the contacts of the first main relay KA6.1 are closed, the coil of the first main contactor KM6.1 is energized to supply power to the locking control circuit.

[0094] Under abnormal circumstances, when the contacts of the first main relay KA6.1 are not closed, the first main contactor KM6.1 is energized; or when the contacts of the first main relay KA6.1 are closed, the first main contactor KM6.1 is not energized. After the above two phenomena last for a time exceeding the fault tolerance time, it can be determined that the first main contactor KM6.1 has a fault.

[0095] 3) The first locking relay KM6.3 or the first unlocking relay KA6.2 has a fault

[0096] Under normal circumstances, when the control system receives the switch lever signal, due to the SIL4 safety level requirement, the first core controller 1011 and the second core controller 1012 will output control signals at the same time. These two control signals will be output to the first locking relay KM6.3 or the first unlocking relay KA6.2 in the form of logical AND, so that the coil of the first locking relay KM6.3 or the first unlocking relay KA6.2 is energized and attracted.

[0097] Under abnormal circumstances, after the control signals of the first core controller 1011 and the second core controller 1012 are output, the first locking relay KM6.3 or the first unlocking relay KA6.2 is not attracted; or when the first core controller 1011 and the second core controller 1012 do not output control signals, the first locking relay KM6.3 or the first unlocking relay KA6.2 is in the attracted state. After the above two phenomena last for a time exceeding the fault tolerance time, it is determined that the first locking relay KM6.3 or the first unlocking relay KA6.2 has a fault.

[0098] 4) The first locking contactor KM6.3KM6.3 or the first unlocking contactor KM6.2 has a fault

[0099] Under normal circumstances, taking the first locking contactor KM6.3KM6.3 as an example, the first core controller 1011 and the second core controller 1012 output control signals to control the first locking relay KM6.3 to act. The contacts of the first locking relay KM6.3 are closed, so that the coil of the first locking contactor KM6.3KM6.3 is energized and the contacts are closed, driving the locking motor lock pin to move forward into the lock groove. The working principle of the unlocking contactor is similar and will not be elaborated here.

[0100] In case of an anomaly, taking the first locking contactor KM6.3 as an example, the first core controller 1011 and the second core controller 1012 output control signals to control the first locking relay KM6.3 to operate. The contacts of the first locking relay KM6.3 close, but the contacts of the first locking contactor KM6.3 do not close, or the contacts of the first locking relay KM6.3 do not close, but the contacts of the first locking contactor KM6.3 close. After the duration of the above two phenomena exceeds the fault tolerance time, it can be determined that the first locking contactor KM6.3 or the first unlocking contactor KM6.2 has a fault.

[0101] Referring to Figure 9 , when the above four abnormal situations occur, the first core controller 1011 can control the first main relay KA6.1 to disconnect, so that the first main contactor KM6.1 disconnects. The first core controller 1011 and the second core controller 1012 can jointly control the first unlocking relay KA6.2 and the first locking relay KM6.3 to disconnect, so that the first unlocking contactor KM6.2 or the first locking contactor KM6.3 disconnects. The second core controller 1012 can control the second main relay KA6.4 to close, so that the second main contactor KM6.4 closes. The first core controller 1011 and the second core controller 1012 can jointly control the second unlocking relay KA6.5 or the second locking relay KA6.6 to close, so that the second unlocking contactor or the second locking contactor KM6.6 closes, thereby controlling the redundant second target controller 1022 to unlock or lock the switch through the control mechanism 200. By way of example, when the second unlocking contactor closes, the control mechanism 200 unlocks the switch; when the second locking contactor KM6.6 closes, the control mechanism 200 locks the switch.

[0102] In some other embodiments, when the first thermal protection relay FR6 disconnects, the first main switch device 1021a, the first unlocking switch device 1021b and the first locking switch device 1021c disconnect, and the second main switch device 1022a, the second unlocking switch device 1022b and the second locking switch device 1022c close. The second target controller 1022 unlocks or locks the switch through the control mechanism 200.

[0103] By way of example, when the current in the loop where the first target controller 1021 is located is too large and exceeds the preset current threshold, the first thermal protection relay FR6, as a circuit protection device, will disconnect the normally closed contact and cut off the power supply 300, thereby powering off the loop. When the core controller receives the feedback signal sent by the first thermal protection relay FR6, it can determine that the loop where the first target controller 1021 is located is overloaded and disconnected.

[0104] Referring to Figure 9, when the circuit where the first target controller 1021 is located is overloaded and disconnected, the first core controller 1011 can control the first main relay KA6.1 to disconnect, so that the first main contactor KM6.1 disconnects. The first core controller 1011 and the second core controller 1012 can jointly control the first unlocking relay KA6.2 and the first locking relay KM6.3 to disconnect, so that the first unlocking contactor KM6.2 or the first locking contactor KM6.3 disconnects. The second core controller 1012 can control the second main relay KA6.4 to close, so that the second main contactor KM6.4 closes. The first core controller 1011 and the second core controller 1012 can jointly control the second unlocking relay KA6.5 or the second locking relay KA6.6 to close, so that the second unlocking contactor or the second locking contactor KM6.6 closes, thereby controlling the redundant second target controller 1022 to unlock or lock the switch through the control mechanism 200.

[0105] In some other embodiments, when a fault occurs in the line between the first target controller 1021 and the control mechanism 200, the first main switch device 1021a, the first unlocking switch device 1021b, and the first locking switch device 1021c disconnect, and the second main switch device 1022a, the second unlocking switch device 1022b, and the second locking switch device 1022c close. The second target controller 1022 unlocks or locks the switch through the control mechanism 200.

[0106] For example, when problems such as cable breakage or loose wiring terminals occur between the first unlocking contactor KM6.2 or the first locking contactor KM6.3KM6.3 and the locking motor in the control mechanism 200, it will cause the action process of the locking motor to time out. At this time, it can be determined that a fault has occurred in the line where the first target controller 1021 is located.

[0107] Refer to Figure 9 , when a fault occurs in the line where the first target controller 1021 is located, the first core controller 1011 can control the first main relay KA6.1 to disconnect, so that the first main contactor KM6.1 disconnects. The first core controller 1011 and the second core controller 1012 can jointly control the first unlocking relay KA6.2 and the first locking relay KM6.3 to disconnect, so that the first unlocking contactor KM6.2 or the first locking contactor KM6.3KM6.3 disconnects. The second core controller 1012 can control the second relay KA6.4 to close, so that the second main contactor KM6.4 closes. The first core controller 1011 and the second core controller 1012 can jointly control the second unlocking relay KA6.5 or the second locking relay KA6.6 to close, so that the second unlocking contactor or the second locking contactor KM6.6 closes, thereby controlling the redundant second target controller 1022 to unlock or lock the switch through the control mechanism 200.

[0108] In summary, the control system in the present disclosure includes a core controller, a target controller, and a control mechanism. The target controller includes a first target controller and a second target controller. The first target controller and the second target controller are respectively connected to the control mechanism, and the core controller is respectively connected to the first target controller and the second target controller. The core controller is configured to control the first target controller to control a target component to perform a target operation through the control mechanism, or to control the second target controller to control the target component to perform the target operation through the control mechanism. By adding a set of redundant target controllers, in the case where the first target controller fails, the second target controller can be controlled to control the target component to perform the target operation through the control mechanism, improving the safety and reliability of the control system for controlling the target component, and further improving the stability of the control system. Moreover, compared with the 2-out-of-2 redundancy, the present disclosure does not need to add a complete set of redundant control systems, and compared with the 3-out-of-2 architecture, it does not need to add a set of redundant core controllers, reducing the cost while ensuring the stability of the control system.

[0109] Referring to Figure 10 , the embodiment of the present disclosure also provides a turnout 400, and the turnout 400 includes the control system 100 shown in the embodiment of the present disclosure.

[0110] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0111] In addition, it should be noted that, in the case of no contradiction, the various specific technical features described in the above specific embodiments can be combined in any appropriate manner. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0112] In addition, any combination can be made between different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A control system, characterized in that: The control system (100) comprises a core controller (101) and a target controller (102); the target controller (102) comprises a first target controller (1021) and a second target controller (1022); the first target controller (1021) and the second target controller (1022) are respectively suitable for connecting to a control mechanism (200); The core controller (101) is connected to the first target controller (1021) and the second target controller (1022) respectively. The core controller (101) is used to control the first target controller (1021) to control the target component to perform a target operation through the control mechanism (200); or, is used to control the second target controller (1022) to control the target component to perform a target operation through the control mechanism (200).

2. The system according to claim 1, characterized in that The target component is a turnout, and the target operation is unlocking or locking; the core controller (101) is used to control the first target controller (1021) to unlock or lock the turnout through the control mechanism (200); or, is used to control the second target controller (1022) to unlock or lock the turnout through the control mechanism (200).

3. The system according to claim 2, characterized in that The core controller (101) comprises a first core controller (1011) and a second core controller (1012); The first core controller (1011) and the second core controller (1012) are respectively connected to the first target controller (1021), and the first core controller (1011) and the second core controller (1012) are respectively connected to the second target controller (1022); The first core controller (1011) and the second core controller (1012) are used together to control the first target controller (1021) to unlock or lock the turnout through the control mechanism (200); or, are used together to control the second target controller (1022) to unlock or lock the turnout through the control mechanism (200).

4. The system according to claim 3, characterized in that The first target controller (1021) comprises a first main switch device (1021a), a first unlocking switch device (1021b) and a first locking switch device (1021c); the second target controller (1022) comprises a second main switch device (1022a), a second unlocking switch device (1022b) and a second locking switch device (1022c); The first core controller (1011) is connected to the first main switch device (1021a), and the second core controller (1012) is connected to the second main switch device (1022a); The first core controller (1011) and the second core controller (1012) are respectively connected to the first unlocking switch device (1021b), the first core controller (1011) and the second core controller (1012) are respectively connected to the first locking switch device (1021c), the first core controller (1011) and the second core controller (1012) are respectively connected to the second unlocking switch device (1022b), and the first core controller (1011) and the second core controller (1012) are respectively connected to the second locking switch device (1022c); The first core controller (1011) and the second core controller (1012) are used together to control the first unlocking switch device (1021b) to unlock the turnout through the control mechanism (200); or, are used together to control the first locking switch device (1021c) to lock the turnout through the control mechanism (200); or, are used together to control the second unlocking switch device (1022b) to unlock the turnout through the control mechanism (200); or, are used together to control the second locking switch device (1022c) to lock the turnout through the control mechanism (200).

5. The system according to claim 2, characterized in that The first target controller (1021) comprises a first main switch device (1021a), a first unlocking switch device (1021b) and a first locking switch device (1021c); the second target controller (1022) comprises a second main switch device (1022a), a second unlocking switch device (1022b) and a second locking switch device (1022c); The core controller (101) is respectively connected to the first unlocking switch device (1021b), the first locking switch device (1021c), the second unlocking switch device (1022b) and the second locking switch device (1022c); the first unlocking switch device (1021b), the first locking switch device (1021c), the second unlocking switch device (1022b) and the second locking switch device (1022c) are respectively suitable for being connected to the control mechanism (200).

6. The system according to claim 4 or 5, characterized in that: The first unlocking switch device (1021b) comprises a first unlocking relay (KA6.2) and a first unlocking contactor (KM6.2) connected to each other, the first locking switch device (1021c) comprises a first locking relay (KA6.3) and a first locking contactor (KM6.3) connected to each other, the second unlocking switch device (1022b) comprises a second unlocking relay (KA6.5) and a second unlocking contactor (KM6.5) connected to each other, and the second locking switch device (1022c) comprises a second locking relay (KA6.6) and a second locking contactor (KM6.6) connected to each other; The first unlocking relay (KA6.2) is used to control the first unlocking contactor (KM6.2) to be closed or opened, and the first locking relay (KA6.3) is used to control the first locking contactor (KM6.3) to be closed or opened; The second unlocking relay (KA6.5) is used to control the second unlocking contactor (KM6.5) to close or open, and the second locking relay (KA6.6) is used to control the second locking contactor (KM6.6) to close or open.

7. The system according to claim 6, characterized in that The first target controller (1021) further includes a first thermal protection relay (FR6), and the second target controller (1022) further includes a second thermal protection relay (FR7); the first thermal protection relay (FR6) and the second thermal protection relay (FR7) are automatically disconnected when the current of the circuit in which they are located is greater than a preset current threshold; The first thermal protection relay (FR6) is connected between the first main switch device (1021a) and the first unlocking switch device (1021b), and the first thermal protection relay (FR6) is also connected between the first main switch device (1021a) and the first locking switch device (1021c); The second thermal protection relay (FR7) is connected between the second main switch device (1022a) and the second unlocking switch device (1022b), and the second thermal protection relay (FR7) is also connected between the second main switch device (1022a) and the second locking switch device (1022c).

8. The system according to claim 7, characterized in that In the event of a failure of the first target controller (1021), the first main switch device (1021a), the first unlocking switch device (1021b) and the first locking switch device (1021c) are disconnected, the second main switch device (1022a) is closed, the second unlocking switch device (1022b) or the second locking switch device (1022c) is closed, and the second target controller (1022) unlocks or locks the turnout through the control mechanism (200).

9. The system according to claim 7, characterized in that When the first thermal protection relay (FR6) is disconnected, the first main switch device (1021a), the first unlocking switch device (1021b) and the first locking switch device (1021c) are disconnected, the second main switch device (1022a) is closed, the second unlocking switch device (1022b) or the second locking switch device (1022c) is closed, and the second target controller (1022) unlocks or locks the turnout through the control mechanism (200).

10. The system according to claim 7, characterized in that In the event of a line failure between the first target controller (1021) and the control mechanism (200), the first main switch device (1021a), the first unlocking switch device (1021b) and the first locking switch device (1021c) are disconnected, the second main switch device (1022a) is closed, the second unlocking switch device (1022b) or the second locking switch device (1022c) is closed, and the second target controller (1022) unlocks or locks the turnout through the control mechanism (200).

11. The system according to any one of claims 7 to 10, characterized in that: The first unlocking switch device (1021b) and the first locking switch device (1021c) are respectively connected to the power supply (300) via the first main switch device (1021a); ​​the second unlocking switch device (1022b) and the second locking switch device (1022c) are respectively connected to the power supply (300) via the second main switch device (1022a).

12. The system according to claim 11, characterized in that The first main switch device (1021a) comprises a first main relay (KA6.1) and a first main contactor (KM6.1) connected to each other, and the second main switch device (1022a) comprises a second main relay (KA6.4) and a second main contactor (KM6.4) connected to each other; When the first main relay (KA6.1) is closed, the first main contactor (KM6.1) is closed, and the power supply (300) supplies power to the first target controller (1021) and the control mechanism (200); when the first main relay (KA6.1) is disconnected, the first main contactor (KM6.1) is disconnected, and the power supply stops supplying power to the first target controller (1021) and the control mechanism (200); When the second main relay (KA6.4) is closed, the second main contactor (KM6.4) is closed, and the power supply (300) supplies power to the second target controller (1022) and the control mechanism (200); When the second main relay (KA6.4) is disconnected, the second main contactor (KM6.4) is disconnected, and the power supply (300) stops supplying power to the second target controller (1022) and the control mechanism (200).

13. A turnout, characterized in that: The turnout comprises the control system according to any one of claims 1-12.

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