Control circuit and method for transformation of six-wire system alternating current switch machine

Abstract

The invention provides a control circuit and method for transformation of a six-wire system alternating-current switch machine, and belongs to the technical field of rail transit control, and the control circuit comprises a dual-mode conversion module which is used for converting a switch signal into a switch signal through a default connection mode of an internal circuit of the dual-mode conversion module within a preset first time period; the control on the six-wire system alternating current switch machine based on the five-wire system alternating current switch machine circuit is realized; and the dual-mode conversion module is also used for realizing the transformation test of the six-wire system alternating current switch machine based on the five-wire system alternating current switch machine circuit by changing the connection mode of the internal circuit of the dual-mode conversion module within a preset second time period. According to the invention, the circuit of the five-wire system alternating current switch machine is flexibly switched in different time periods through the dual-mode conversion module to control and reform the six-wire system alternating current switch machine, so that the normal operation of the six-wire system alternating current switch machine is not influenced; compatible control and transformation test of a five-wire system alternating current switch machine circuit and a six-wire system alternating current switch machine are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit control, and in particular to a control circuit and method for modifying a six-wire AC switch machine. Background Art

[0002] In the turnout control system of urban rail transit, the switch machine is an important device to ensure the correct train travel path. At present, the five-wire AC switch machine circuit widely used in China can effectively meet the needs of most application scenarios. However, in some subway lines, six-wire AC switch machines are used, which brings compatibility problems during the turnout transformation process.

[0003] In the existing technical solutions, the six-wire switch needs to maintain high reliability in actual operation, especially in normal operation during the day, to ensure the safe operation of the train. However, due to the different connection ports and control logic of the six-wire and five-wire systems, simple line reconnection often cannot meet the stability requirements of the system. Therefore, the transformation process in the existing technology takes up a lot of time and resources, which usually affects the normal operation during the day and makes it difficult to achieve a balance between transformation and operation.

[0004] Therefore, how to achieve the compatible control and transformation test of the five-wire AC switch circuit and the six-wire AC switch circuit without affecting the normal operation of the six-wire AC switch has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present invention provides a control circuit and method for modifying a six-wire AC switch, which are used to solve the defects in the prior art, thereby realizing the compatibility control and modification test of a five-wire AC switch circuit and a six-wire AC switch without affecting the normal operation of the six-wire AC switch.

[0006] The present invention provides a control circuit for the transformation of a six-wire AC switch machine, comprising: a six-wire AC switch machine, a five-wire AC switch machine circuit and a dual-mode conversion module; The five-wire AC switch machine circuit is connected to the first to fifth contacts of the six-wire AC switch machine through the first to fifth contacts of the six-wire AC switch machine; The first to fourth ends of the dual-mode conversion module are respectively connected to the sixth to ninth contacts of the six-wire AC switch machine, and the fifth end of the dual-mode conversion module is connected to the seventh contact of the six-wire AC switch machine through the sixth connection terminal of the six-wire AC switch machine; The dual-mode conversion module is used to control the six-wire AC switch machine based on the five-wire AC switch machine circuit through the default connection mode of the internal circuit of the dual-mode conversion module within a preset first time period; The dual-mode conversion module is also used to implement a modification test of the six-wire AC switch machine based on the five-wire AC switch machine circuit by changing the connection mode of the internal circuit of the dual-mode conversion module within a preset second time period.

[0007] According to a control circuit for the transformation of a six-wire AC switch provided by the present invention, the dual-mode conversion module includes a control unit and a switching unit; The first end to the fourth end of the switching unit are respectively connected to the sixth contact to the ninth contact of the six-wire AC switch machine, and the fifth end of the switching unit is connected to the seventh contact of the six-wire AC switch machine through the sixth connection terminal of the six-wire AC switch machine; The control unit is used to control the switching unit to switch to the first state within a preset first time period, and to control the switching unit to switch to the second state within a preset second time period; The switching unit is used to combine with the five-wire AC switch circuit to realize the original six-wire control of the six-wire AC switch in the first state; The switching unit is further used to implement, in the second state, a modification test of a six-wire AC switch machine based on the five-wire AC switch machine circuit.

[0008] According to a control circuit for the transformation of a six-wire AC switch machine provided by the present invention, the switching unit comprises: a rectifier unit and a relay switching unit; The rectifier unit is connected to the relay switching unit; The first to fourth ends of the relay switching subunit are respectively connected to the sixth to ninth contacts of the six-wire AC switch machine, and the fifth end of the relay switching subunit is connected to the seventh contact of the six-wire AC switch machine through the sixth connection terminal of the six-wire AC switch machine.

[0009] According to a control circuit for the modification of a six-wire AC switch provided by the present invention, the relay switching subunit comprises a first relay, a second relay, a third relay and a fourth relay; The first end of the first relay is connected to the sixth contact of the six-wire AC switch machine; The first end of the second relay is connected to the seventh contact of the six-wire AC switch machine; The first end of the third relay is connected to the eighth contact of the six-wire AC switch machine; The first end of the fourth relay is connected to the ninth contact of the six-wire AC switch machine; The second end of the first relay and the second end of the fourth relay are both connected to one end of the rectifier unit; The second end of the second relay and the second end of the third relay are both connected to the other end of the rectifier unit; The third end of the first relay and the third end of the second relay are both connected to the seventh contact of the six-wire AC point switch through the sixth connection terminal of the six-wire AC point switch.

[0010] According to a control circuit for modifying a six-wire AC switch provided by the present invention, the rectifier unit includes a diode and a resistor, and the cathode of the diode is connected to one end of the resistor.

[0011] According to a control circuit for the transformation of a six-wire AC switch machine provided by the present invention, the control unit includes a power supply, a double button and a multi-way control relay; The first end of the double button is connected to the positive pole of the power supply, the second end of the double button is connected to one end of the multi-way control relay, the third end of the double button is connected to the other end of the multi-way control relay, and the fourth end of the double button is connected to the negative pole of the power supply.

[0012] The multi-way control relay is used to simultaneously control the switch states of the first relay, the second relay, the third relay and the fourth relay to achieve synchronous control of multiple relays.

[0013] According to a control circuit for modifying a six-wire AC switch provided by the present invention, when the multi-channel control relay simultaneously controls the first relay, the second relay, the third relay and the fourth relay to be in an off state, the switching unit is in the first state; When the multi-way control relay simultaneously controls the first relay, the second relay, the third relay, and the fourth relay to be in a closed state, the switching unit is in the second state.

[0014] According to a control circuit for the modification of a six-wire AC switch machine provided by the present invention, the dual-mode conversion module further includes an indicator light unit; The indicator light unit is used to display a preset first light when the switching unit is in the first state; The indicator light unit is further used to display a preset second light when the switching unit is in the second state.

[0015] The present invention also provides a control method for the transformation of a six-wire AC switch, comprising the following steps: controlling the six-wire AC switch based on the five-wire AC switch circuit by a dual-mode conversion module in a preset first time period through a default connection mode of an internal circuit of the dual-mode conversion module; Through the dual-mode conversion module, within a preset second time period, by changing the connection mode of the internal circuit of the dual-mode conversion module, the modification test of the six-wire AC switch machine based on the five-wire AC switch machine circuit is realized.

[0016] According to a control method for the transformation of a six-wire AC switch provided by the present invention, the dual-mode conversion module includes a control unit and a switching unit, and the method specifically includes: By means of the control unit, the switching unit is controlled to switch to a first state within a preset first time period, and the switching unit is controlled to switch to a second state within a preset second time period; Through the switching unit, in the first state, it is combined with the five-wire AC switch circuit to realize the original six-wire control of the six-wire AC switch; and in the second state, the modification test of the six-wire AC switch based on the five-wire AC switch circuit is realized.

[0017] In summary, one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: By connecting the five-wire AC switch circuit to the first to fifth terminals of the six-wire AC switch, the basic control of the five-wire system over the six-wire system is achieved. In order to further achieve the smooth switching of the dual modes, this solution designs a dual-mode conversion module, which can flexibly switch the connection mode in different time periods to meet different operation requirements. In the operation of the dual-mode conversion module, the control of the six-wire AC switch based on the five-wire AC switch circuit is achieved through the default connection mode in the preset first time period, so that the system can maintain the normal operation of the original six-wire system during daytime operation, thereby ensuring that the daily line operation is not affected. At night or in the designated non-operating time period, the dual-mode conversion module switches to the second mode. By changing the connection mode of the internal circuit, the five-wire AC switch circuit can directly act on the six-wire switch at night, realizing the transformation test of the five-wire system. In this state, the five-wire system can simulate and verify its compatibility and control effect in actual applications, ensuring the safety and effectiveness of subsequent large-scale switching. Therefore, through the dual-mode design of time-sharing switching, it is possible to carry out gradual transformation while maintaining the stable operation of the existing system, thereby achieving compatible control and transformation testing of the five-wire AC switch circuit and the six-wire AC switch without affecting the normal operation of the six-wire AC switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The present invention provides a schematic diagram of the structure of a control circuit for the modification of a six-wire AC switch machine.

[0020] Figure 2 The present invention is a schematic diagram of the structure of a six-wire AC switch machine control circuit.

[0021] Figure 3 It is a circuit equivalent circuit diagram of a five-wire AC switch machine in a second state provided by the present invention.

[0022] Figure 4 The present invention is a flowchart of a control method for modifying a six-wire AC switch machine. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that, in the description of the present invention, the terms "first" and "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0025] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "electrical connection", "electrical connection" or "communication electrical connection" should be understood in a broad sense. For example, "electrical connection", "electrical connection" or "communication electrical connection" can refer to not only physical electrical connection, but also electrical connection or signal electrical connection. For example, it can be a direct electrical connection, that is, a physical electrical connection, or an indirect electrical connection through at least one intermediate element, as long as the circuit is connected, or it can be the internal connection of two elements; signal electrical connection can refer to signal electrical connection through a media medium, such as radio waves, in addition to signal electrical connection through a circuit. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0026] Combine the following Figure 1-Figure 4 The invention describes a modification method, system, electronic device and storage medium for a six-wire AC switch machine.

[0027] Figure 1 Schematic diagram of the control circuit for the six-wire AC switch machine modification provided by the present invention. Figure 1 As shown, it includes: a six-wire AC switch machine, a five-wire AC switch machine circuit and a dual-mode conversion module; The five-wire AC switch machine circuit is connected to the first contact point to the fifth contact point of the six-wire AC switch machine through the first connection terminal to the fifth connection terminal of the six-wire AC switch machine; The first to fourth ends of the dual-mode conversion module are respectively connected to the sixth to ninth contacts of the six-wire AC switch machine, and the fifth end of the dual-mode conversion module is connected to the seventh contact of the six-wire AC switch machine through the sixth connection terminal of the six-wire AC switch machine; The dual-mode conversion module is used to control the six-wire AC switch machine based on the five-wire AC switch machine circuit through the default connection mode of the internal circuit of the dual-mode conversion module within a preset first time period; The dual-mode conversion module is also used to realize the modification test of the six-wire AC switch machine based on the five-wire AC switch machine circuit by changing the connection mode of the internal circuit of the dual-mode conversion module within a preset second time period.

[0028] Specifically, in the operation and renovation of urban rail transit, the traditional six-wire AC switch control circuit is widely used on many existing lines. The six-wire AC switch control circuit can be referred to Figure 2 , Figure 2The figure is a schematic diagram of the structure of the six-wire AC switch control circuit provided by the present invention. However, with the advancement of technology, the five-wire AC switch system has gradually become the mainstream. This change brings a key challenge, that is, to achieve the compatible access and control of the five-wire system to the six-wire switch without affecting the normal operation of the six-wire AC switch. To this end, a control circuit for the transformation of the six-wire AC switch is proposed to meet the transformation needs of the existing lines.

[0029] In this embodiment, the control circuit includes a six-wire AC switch machine, a five-wire AC switch machine circuit, and a dual-mode conversion module for realizing dual-mode switching. It should be noted that before converting the six-wire AC switch machine circuit into a five-wire AC switch machine circuit, it is first necessary to disconnect the Figure 2 and disconnecting the connection between the sixth connection point and the seventh connection point.

[0030] The five-wire AC switch circuit is connected to the first to fifth contacts of the six-wire AC switch through the first to fifth terminals of the six-wire AC switch, so that the five-wire AC switch circuit can be connected to the six-wire switch in a basic manner. This connection method not only ensures the compatibility of the five-wire AC switch circuit when it is initially connected to the six-wire switch, but also lays the foundation for subsequent control and switching.

[0031] In order to maintain the stable control of the six-wire switch in normal operation and perform compatibility testing of the five-wire system in a specific time period, this solution specially designs a dual-mode conversion module. The first to fourth ends of the dual-mode conversion module are respectively connected to the sixth to ninth contacts of the six-wire AC switch, and the fifth end is connected to the seventh contact through the sixth terminal of the six-wire AC switch. This connection method enables the dual-mode conversion module to intervene in the control without changing the original structure of the six-wire switch, realizing flexible switching of the dual modes.

[0032] In actual application, the dual-mode conversion module maintains the control of the five-wire AC switch circuit over the six-wire AC switch through the default internal circuit connection mode during the preset first time period. This default connection mode ensures that during normal daytime operation, the six-wire AC switch can still be controlled according to the established logic without being interfered by the five-wire access.

[0033] During the preset second time period, such as non-operating hours at night, the dual-mode conversion module changes the connection method of the internal circuit to realize the modification test of the six-wire switch based on the five-wire AC switch circuit. Specifically, the dual-mode conversion module switches the internal circuit during this period so that the control signal of the five-wire AC switch circuit can directly act on the six-wire switch, thereby simulating the actual control effect of the five-wire system. In this way, the compatibility of the five-wire system can be tested and verified without affecting daytime operations, to ensure that the five-wire system can smoothly take over the control of the six-wire switch. This modification test not only provides an effective testing method for subsequent system switching, but also improves the modification efficiency.

[0034] Through the design of this solution, the five-wire AC switch circuit can seamlessly access and control the six-wire AC switch while ensuring the normal operation of the six-wire switch, thereby achieving the technical effect of taking into account both daytime stability and nighttime transformation testing.

[0035] In a possible implementation, the dual-mode conversion module includes a control unit and a switching unit; The first end to the fourth end of the switching unit are respectively connected to the sixth contact point to the ninth contact point of the six-wire AC switch machine, and the fifth end of the switching unit is connected to the seventh contact point of the six-wire AC switch machine through the sixth connection terminal of the six-wire AC switch machine; A control unit, used to control the switching unit to switch to a first state within a preset first time period, and to control the switching unit to switch to a second state within a preset second time period; The switching unit is used to realize the original six-wire control of the six-wire AC switch machine in combination with the five-wire AC switch machine circuit in the first state; The switching unit is also used to implement a modification test of a six-wire AC switch machine based on a five-wire AC switch machine circuit in the second state.

[0036] Specifically, the switching unit in the dual-mode conversion module has multiple connection terminals, the first to fourth terminals are respectively connected to the sixth to ninth contacts of the six-wire AC switch, and the fifth terminal is connected to the seventh contact through the sixth connection terminal of the six-wire AC switch.

[0037] The control unit is responsible for managing the state switching of the switching unit within the preset time period. During the first time period of daytime operation, the control unit keeps the switching unit in the first state. At this time, the switching unit is combined with the five-wire AC switch circuit through the default connection method to realize the original six-wire control of the six-wire AC switch. In this mode, the control method of the six-wire AC switch is not affected by the connection of the five-wire AC switch circuit, ensuring the normal operation of the switch.

[0038] During the second time period of the nighttime transformation test, the control unit controls the switching unit to switch to the second state. At this time, the switching unit changes its internal connection so that the control signal of the five-wire AC switch circuit can directly act on the six-wire AC switch, thereby performing a transformation test on the six-wire AC switch.

[0039] In a possible implementation, the switching unit includes: a rectifier unit and a relay switching unit; The rectifier unit is connected to the relay switching unit; The first to fourth ends of the relay switching subunit are respectively connected to the sixth to ninth contacts of the six-wire AC switch machine, and the fifth end of the relay switching subunit is connected to the seventh contact of the six-wire AC switch machine through the sixth connection terminal of the six-wire AC switch machine.

[0040] Specifically, the function of the rectifier unit is to rectify the alternating current so that the current can meet the control requirements of the relay switching subunit.

[0041] The relay switching subunit is responsible for switching the contacts under the preset control logic. Its first to fourth ends are respectively connected to the sixth to ninth contacts of the six-wire AC switch, and the fifth end is connected to the seventh contact through the sixth terminal of the six-wire AC switch. This connection method enables the relay switching subunit to effectively intervene in the control channel of the six-wire AC switch. By switching the open and closed states of the relay, dual-mode conversion can be achieved: in the first mode, the relay switching subunit maintains the circuit connection of the original six-wire control system to ensure that the six-wire switch maintains stable control during normal operation; in the second mode, by controlling the pull-in state of the relay and switching the current path, the control signal of the five-wire AC switch circuit can directly act on the six-wire AC switch, and then the transformation test can be carried out.

[0042] In a possible implementation, the relay switching subunit includes a first relay, a second relay, a third relay, and a fourth relay; The first end of the first relay is connected to the sixth contact of the six-wire AC switch machine; The first end of the second relay is connected to the seventh contact of the six-wire AC switch machine; A first end of the third relay is connected to the eighth contact of the six-wire AC switch machine; The first end of the fourth relay is connected to the ninth contact of the six-wire AC switch machine; The second end of the first relay and the second end of the fourth relay are both connected to one end of the rectifier unit; The second end of the second relay and the second end of the third relay are both connected to the other end of the rectifier unit; The third end of the first relay and the third end of the second relay are both connected to the seventh contact of the six-wire AC point switch through the sixth connection terminal of the six-wire AC point switch.

[0043] Specifically, in the modification scheme of the six-wire AC switch, in order to realize the flexible control of the five-wire AC switch circuit over the six-wire switch, this scheme adopts a relay switching subunit with a multi-relay structure to realize the dual-mode switching operation. In this embodiment, the relay switching subunit includes a first relay, a second relay, a third relay and a fourth relay, and through precise relay connection and switching control, it is ensured that the system is seamlessly compatible and modified without interfering with the existing six-wire control.

[0044] Specifically, the first relay, the second relay, the third relay and the fourth relay are respectively connected to the sixth to ninth contacts of the six-wire AC switch to form independent pathways, wherein the first end of the first relay is connected to the sixth contact of the six-wire AC switch, the first end of the second relay is connected to the seventh contact, the first end of the third relay is connected to the eighth contact, and the first end of the fourth relay is connected to the ninth contact.

[0045] In order to achieve stable current control and path switching, the second end of the first relay and the second end of the fourth relay are connected to one end of the rectifier unit, while the second ends of the second relay and the third relay are connected to the other end of the rectifier unit. The rectifier unit in this structure mainly undertakes the current regulation and rectification functions, ensuring that the relay obtains stable current support under different switching states to avoid the influence of current fluctuations on control accuracy. This rectifier connection design enables the relay switching subunit to switch to different modes according to demand, effectively adapt to the current requirements of the dual mode, and improve the switching stability of the system.

[0046] In addition, in order to ensure smooth switching and effective control of the relay switching subunit, the third end of the first relay and the third end of the second relay are connected to the seventh contact through the sixth terminal of the six-wire AC switch. This connection structure further strengthens the synchronization between relays, making it easier for all relays to switch synchronously when switching to the second state for five-wire transformation testing, ensuring the overall stability and reliability of the system.

[0047] In a possible implementation manner, the rectifier unit includes a diode and a resistor, and a cathode of the diode is connected to one end of the resistor.

[0048] Specifically, in the rectifier unit, the cathode of the diode is connected to one end of the resistor. This connection method is mainly to achieve the rectification of the input current and the resistance adjustment function. The diode is used to rectify the AC input signal into a DC signal with a unidirectional conduction characteristic. This rectification method can effectively avoid the adverse effects of the AC signal on the operation of the relay and ensure the consistency of the current direction. In addition, the unidirectionality of the diode enables it to avoid the generation of reverse current when switching between different states, thereby protecting the stable operation of the downstream circuit.

[0049] The role of the resistor is to adjust the magnitude of the rectified current to prevent the working stability of the relay switching subunit from being affected by excessive current. By adding a resistor to the rectifier circuit, the current amplitude can be effectively limited to avoid the impact caused by sudden current changes during the relay switching process. This design is particularly suitable for occasions with frequent switching. In the process of remodeling the six-wire AC switch machine, the current limiting effect of the resistor is particularly important, so that the system can maintain a stable current supply during dual-mode conversion and prevent current fluctuations from causing relay malfunctions.

[0050] In a possible implementation, the control unit includes a power supply, a double button, and a multi-way control relay; The first end of the double button is connected to the positive pole of the power supply, the second end of the double button is connected to one end of the multi-way control relay, the third end of the double button is connected to the other end of the multi-way control relay, and the fourth end of the double button is connected to the negative pole of the power supply.

[0051] The multi-channel control relay is used to simultaneously control the switch states of the first relay, the second relay, the third relay and the fourth relay to achieve synchronous control of the multiple relays.

[0052] Specifically, the double button in the control unit has four connection terminals: the first terminal is connected to the positive pole of the power supply, and the fourth terminal is connected to the negative pole of the power supply, forming a complete circuit connection path. The second and third terminals of the double button are respectively connected to the two ends of the multi-way control relay. Through this circuit design, when the double button is pressed, the current flows from the positive pole of the power supply through the double button, reaches the multi-way control relay, and finally returns to the negative pole of the power supply, forming a closed circuit, thereby activating the multi-way control relay.

[0053] The multi-way control relay plays a key role in the control unit, and its design purpose is to achieve synchronous control of multiple relays. Specifically, the control unit can simultaneously control the switch states of the first relay, the second relay, the third relay, and the fourth relay through the working state of the multi-way control relay. This multi-way control design ensures that when the mode needs to be switched, multiple relays can complete the state switching at the same time, so that the system can respond quickly and will not cause control deviation due to delays.

[0054] In a possible implementation manner, when the multi-way control relay simultaneously controls the first relay, the second relay, the third relay, and the fourth relay to be in an off state, the switching unit is in a first state; When the multi-way control relay simultaneously controls the first relay, the second relay, the third relay and the fourth relay to be in a closed state, the switching unit is in the second state.

[0055] Specifically, when the multi-channel control relay controls all relays (i.e., the first relay, the second relay, the third relay, and the fourth relay) to be in the disconnected state, the switching unit is in the first state. At this time, the connection path of the switching unit defaults to the original configuration of the six-wire system, so that the six-wire AC switch can work stably during the normal operation period during the daytime based on the existing control logic. This design ensures the stability and reliability of the system, so that the transformation operation will not interfere with the safe operation of the existing line.

[0056] On the other hand, when entering the preset transformation test period, the control unit switches the first to fourth relays to the closed state at the same time through the centralized control of the multi-way control relays, and the switching unit enters the second state. In this state, the internal connections of the switching unit are reconfigured so that the control signal of the five-wire AC switch circuit can directly act on the six-wire switch. Through the synchronous closing operation of the multi-way control relays, the five-wire transformation test mode is entered. When the switching unit is in the second state, the equivalent circuit diagram of using the five-wire AC switch circuit to test the six-wire AC switch can be referred to. Figure 3 , Figure 3 It is a circuit equivalent circuit diagram of a five-wire AC switch machine in a second state provided by the present invention.

[0057] In a possible implementation, the dual-mode conversion module further includes an indicator light unit; An indicator light unit, used to display a preset first light when the switching unit is in a first state; The indicator light unit is also used to display a preset second light when the switching unit is in the second state.

[0058] In the modified control circuit of the six-wire AC switch machine, in order to clearly indicate the current working status of the system and assist the operator in mode monitoring, this solution designs an indicator light unit in the dual-mode conversion module. When the system is in different states, the indicator light unit intuitively displays the current mode through different color light indications, which helps to ensure the accuracy and safety of operation.

[0059] Specifically, the indicator light unit includes two preset lights: when the switching unit is in the first state, the indicator light unit displays the preset first light, usually green, to indicate that the system is currently in normal operation. When the switching unit enters the second state, that is, the system switches to the transformation test mode, the indicator light unit displays the preset second light, usually red, to prompt the operator that the current system has switched to the five-wire transformation test state.

[0060] like Figure 1 As shown, the indicator light unit specifically includes a power supply, a fifth relay, a first LED light (indicated by the symbol L in the figure) and a second LED light (indicated by the symbol H in the figure). The multi-way control relay is also used to control the switch state of the fifth relay, and the switch state of the fifth relay is consistent with the switch states of the first relay, the second relay, the third relay and the fourth relay. That is, when in the first state, the fifth relay is in an open state, at which time the first LED light is connected and the green light is on, indicating that it is in the first state at this time. When in the second state, the fifth relay is in a closed state, at which time the second LED light is connected and the red light is on, indicating that it is in the second state at this time.

[0061] Finally, combined with the content in the aforementioned embodiments, it should be noted that in the actual application of rail transit lines, there may be six-wire AC switch machines that need to be modified at multiple nodes, but the control circuit for the modification of the six-wire AC switch machine provided in this application is mainly used for implementation at a single node. During the track modification process, since the switch machines at multiple nodes need to be debugged and tested one by one, before all nodes are debugged or before the third-party safety certification value is obtained, the normal operation during the day still needs to use the six-wire switch machine circuit to control the six-wire switch machine to ensure the safety and stability of the existing system.

[0062] In this solution, the preset second time period, i.e., the non-operating time period at night, is usually used for the five-wire transformation test of a single node. However, due to the limited time at night, it is impossible to complete the transformation of all nodes in a single night time period. Therefore, the transformation verification can only be performed on a few nodes during the daily night test, and in the preset first time period of the next day, i.e., the operating time period during the day, the nodes that have completed the transformation test must switch back to the six-wire control mode in order to maintain the normal operation of the system together with other nodes that have not completed the transformation.

[0063] Specifically, after completing the five-wire transformation test of a node every night, during the daytime operation of the next day, the control unit will switch to the first state by controlling the switching unit, so that the five-wire AC switch circuit that has completed the test is combined with the switching unit in the first state, which is equivalent to a six-wire switch circuit and works in coordination with other nodes that have not been transformed. In this way, the transformed test node can participate in normal daytime operations in the six-wire mode, thereby ensuring the overall stability and safety of the track line.

[0064] After the six-wire switch circuits on all nodes have completed the transformation test, debugging, and obtained the necessary third-party safety certification values, the dual-mode conversion module on each node can be removed, so that the five-wire AC switch circuit can directly control the six-wire switch, and finally realize the five-wire system The system fully controls the entire line. This method of gradual transformation and segmented testing not only ensures normal daytime operation needs, but also effectively reduces the risk of multi-node transformation, allowing the entire transformation process to proceed smoothly and reliably, and ultimately achieving a comprehensive upgrade of the rail system.

[0065] The present application also provides a control method for the transformation of a six-wire AC switch, which is applied to the circuit of any of the above embodiments, referring to Figure 4 , Figure 4 The figure is a flow chart of a control method for modifying a six-wire AC switch provided by the present invention, and the method comprises steps 1-2: Step 1: Through the dual-mode conversion module, within a preset first time period, the default connection method of the internal circuit of the dual-mode conversion module is used to control the six-wire AC switch machine based on the five-wire AC switch machine circuit.

[0066] Step 2: Through the dual-mode conversion module, within a preset second time period, by changing the connection mode of the internal circuit of the dual-mode conversion module, the modification test of the six-wire AC switch machine based on the five-wire AC switch machine circuit is realized.

[0067] In a possible implementation, the method specifically includes the following steps: By means of the control unit, the switching unit is controlled to switch to the first state within a preset first time period, and the switching unit is controlled to switch to the second state within a preset second time period; Through the switching unit, in the first state, it is combined with the five-wire AC switch circuit to realize the original six-wire control of the six-wire AC switch; and in the second state, the transformation test of the six-wire AC switch based on the five-wire AC switch circuit is realized.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control circuit for the transformation of a six-wire AC switch machine, characterized in that: include: Six-wire AC switch machine, five-wire AC switch machine circuit and dual-mode conversion module; The five-wire AC switch machine circuit is connected to the first to fifth contacts of the six-wire AC switch machine through the first to fifth contacts of the six-wire AC switch machine; The first to fourth ends of the dual-mode conversion module are respectively connected to the sixth to ninth contacts of the six-wire AC switch machine, and the fifth end of the dual-mode conversion module is connected to the seventh contact of the six-wire AC switch machine through the sixth connection terminal of the six-wire AC switch machine; The dual-mode conversion module is used to control the six-wire AC switch machine based on the five-wire AC switch machine circuit through the default connection mode of the internal circuit of the dual-mode conversion module within a preset first time period; The dual-mode conversion module is also used to implement a modification test of the six-wire AC switch machine based on the five-wire AC switch machine circuit by changing the connection mode of the internal circuit of the dual-mode conversion module within a preset second time period.

2. The control circuit for the six-wire AC switch machine modification according to claim 1 is characterized in that: The dual-mode conversion module includes a control unit and a switching unit; The first end to the fourth end of the switching unit are respectively connected to the sixth contact to the ninth contact of the six-wire AC switch machine, and the fifth end of the switching unit is connected to the seventh contact of the six-wire AC switch machine through the sixth connection terminal of the six-wire AC switch machine; The control unit is used to control the switching unit to switch to the first state within a preset first time period, and to control the switching unit to switch to the second state within a preset second time period; The switching unit is used to combine with the five-wire AC switch circuit to realize the original six-wire control of the six-wire AC switch in the first state; The switching unit is further used to implement, in the second state, a modification test of a six-wire AC switch machine based on the five-wire AC switch machine circuit.

3. The control circuit for the six-wire AC switch machine modification according to claim 2 is characterized in that: The switching unit comprises: a rectifier unit and a relay switching unit; The rectifier unit is connected to the relay switching unit; The first to fourth ends of the relay switching subunit are respectively connected to the sixth to ninth contacts of the six-wire AC switch machine, and the fifth end of the relay switching subunit is connected to the seventh contact of the six-wire AC switch machine through the sixth connection terminal of the six-wire AC switch machine.

4. The control circuit for the modification of the six-wire AC switch machine according to claim 3 is characterized in that: The relay switching subunit includes a first relay, a second relay, a third relay and a fourth relay; The first end of the first relay is connected to the sixth contact of the six-wire AC switch machine; The first end of the second relay is connected to the seventh contact of the six-wire AC switch machine; The first end of the third relay is connected to the eighth contact of the six-wire AC switch machine; The first end of the fourth relay is connected to the ninth contact of the six-wire AC switch machine; The second end of the first relay and the second end of the fourth relay are both connected to one end of the rectifier unit; The second end of the second relay and the second end of the third relay are both connected to the other end of the rectifier unit; The third end of the first relay and the third end of the second relay are both connected to the seventh contact of the six-wire AC point switch through the sixth connection terminal of the six-wire AC point switch.

5. The control circuit for the modification of the six-wire AC switch machine according to claim 3 is characterized in that: The rectifier unit includes a diode and a resistor, and the cathode of the diode is connected to one end of the resistor.

6. The control circuit for the six-wire AC switch machine modification according to claim 4 is characterized in that: The control unit includes a power supply, a double button and a multi-way control relay; The first end of the double button is connected to the positive pole of the power supply, the second end of the double button is connected to one end of the multi-way control relay, the third end of the double button is connected to the other end of the multi-way control relay, and the fourth end of the double button is connected to the negative pole of the power supply. The multi-way control relay is used to simultaneously control the switch states of the first relay, the second relay, the third relay and the fourth relay to achieve synchronous control of multiple relays.

7. The control circuit for the modification of the six-wire AC switch machine according to claim 6 is characterized in that: When the multi-way control relay simultaneously controls the first relay, the second relay, the third relay and the fourth relay to be in an off state, the switching unit is in the first state; When the multi-way control relay simultaneously controls the first relay, the second relay, the third relay, and the fourth relay to be in a closed state, the switching unit is in the second state.

8. The control circuit for the modification of the six-wire AC switch machine according to claim 2 is characterized in that: The dual-mode conversion module also includes an indicator light unit; The indicator light unit is used to display a preset first light when the switching unit is in the first state; The indicator light unit is further used to display a preset second light when the switching unit is in the second state.

9. A control method for the transformation of a six-wire AC switch machine, characterized in that: A control circuit for modifying a six-wire AC switch machine as claimed in any one of claims 1 to 8, comprising: Through the dual-mode conversion module, within a preset first time period, through the default connection mode of the internal circuit of the dual-mode conversion module, the control of the six-wire AC switch machine based on the five-wire AC switch machine circuit is realized; Through the dual-mode conversion module, within a preset second time period, by changing the connection mode of the internal circuit of the dual-mode conversion module, the modification test of the six-wire AC switch machine based on the five-wire AC switch machine circuit is realized.

10. The control method for the transformation of a six-wire AC switch machine according to claim 9, characterized in that: The dual-mode conversion module includes a control unit and a switching unit, and the method specifically includes: By means of the control unit, the switching unit is controlled to switch to a first state within a preset first time period, and the switching unit is controlled to switch to a second state within a preset second time period; Through the switching unit, in the first state, it is combined with the five-wire AC switch circuit to realize the original six-wire control of the six-wire AC switch; and in the second state, the modification test of the six-wire AC switch based on the five-wire AC switch circuit is realized.

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