Intelligent troubleshooting training platform for five-line system turnout switching equipment

Abstract

The application provides a five-system turnout switching device intelligent troubleshooting training platform, belongs to the technical field of turnout switching device troubleshooting, and comprises a three-phase motor power supply circuit, a switching machine control circuit, a switching machine simulation device, a voltage acquisition device and a current acquisition device.The three-phase motor power supply circuit is connected with the motor through the switching machine simulation device, the switching machine control circuit is connected with the switching machine simulation device, and the voltage acquisition device is installed on the three-phase motor power supply circuit.The application is cheap and small in size, can realize the function of fault positioning through the current acquisition module through an acquisition loop, and can help users to check whether the fault range predicted and judged according to the phenomenon is correct, improve the troubleshooting efficiency, is more convenient and fast compared with the expensive MSS system currently used by enterprises, is simple to assemble, can control the equipment through a mobile phone, and is easy for primary operators to learn.

Description

Technical Field

[0001] This invention relates to the field of fault diagnosis technology for turnout switching equipment, and in particular to an intelligent fault diagnosis training platform for five-wire turnout switching equipment. Background Technology

[0002] The rail transit signaling system is the central core ensuring the safe operation of trains. Signaling systems involve numerous and expensive components. The three main trackside components—signals, track circuits, and switches—are fundamental equipment for ensuring normal train operation and are a key focus of rail transit education. Switches, in particular, are a vulnerable link in the train track; switch malfunctions directly affect the safe and orderly operation of trains. Therefore, training students to quickly and accurately troubleshoot switch malfunctions is a key aspect of rail transit education. Switch machines are signaling devices that ensure the correct operation of switches. Controlled by relay circuits, switch machines allow indoor control of outdoor switch operation, ensuring proper train route alignment.

[0003] Currently, the system used is the ATS system to operate the turnouts, and the MSS system is used to monitor the turnouts with a microcomputer. The power curve analysis helps signalmen troubleshoot the faults. However, the power curve analysis also requires the signalmen to have many years of experience. At the same time, the MSS system requires the acquisition module to be installed on the interlocking equipment, which is expensive. While using the MSS, the signalmen still need to manually check and repair fault points with tools, which is slow and inefficient. The training equipment is all actual equipment, which is expensive. The training space is limited, making it difficult to allow multiple people to practice and train at the same time.

[0004] Currently, the commonly used switch machines on rail transit lines mainly include the ZYJ7, ZDJ9, and S700K series, which employ a five-wire turnout control circuit. However, due to the bulky and heavy size of these switch machines, using the original equipment for training presents the following problems:

[0005] First, there is the issue of funding. Five-wire switch machines are expensive, and training programs can only equip one or two switch machines. Achieving simultaneous use of multiple machines would be costly.

[0006] Secondly, there is the issue of demonstration. Five-line switch machines are generally large and heavy, making them difficult to move around for demonstration. However, if they are demonstrated in groups, it will take up a lot of training time. At the same time, there is a situation where some students are observing and learning while others have nothing to do.

[0007] Third, troubleshoot inefficiencies and malfunctions. Summary of the Invention

[0008] The purpose of this invention is to provide an intelligent troubleshooting training platform for five-wire turnout switching equipment, which solves the technical problems of existing turnout switching equipment training platforms being expensive, difficult to demonstrate in training and teaching, and inefficient in troubleshooting.

[0009] This training platform only requires the corresponding railway-specific relays, ordinary electrical relays, and a three-phase motor to realize the function of a switch machine, significantly reducing costs and allowing trainees to learn in groups simultaneously. The platform is installed on a teaching assembly rack for easy viewing and installation, effectively improving the training environment and increasing learning efficiency. Through the access acquisition module, the system helps signal workers quickly locate the specific level of the hierarchical control circuit where a fault has occurred. Furthermore, the system allows direct control of the switch machine's positioning / reversal via a mobile phone. When a fault occurs, prompts will pop up on the fault analysis interface of the app, enabling trainees to quickly and accurately check the accuracy of their troubleshooting results, greatly improving work efficiency.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0011] The intelligent troubleshooting training platform for five-wire turnout switching equipment includes a three-phase motor power supply circuit and a turnout control circuit, as well as a turnout simulation device, a voltage acquisition device, and a current acquisition device. The three-phase motor power supply circuit is connected to the motor via the turnout simulation device, and the turnout control circuit is connected to the turnout simulation device. The voltage acquisition device is installed on the three-phase motor power supply circuit and connected to the turnout simulation device, while the current acquisition device is installed on the turnout control circuit and connected to the turnout simulation device.

[0012] Furthermore, the switch machine simulation device includes a PLC controller and a relay device, with the PLC controller and the relay device being connected for control.

[0013] Furthermore, the relay device includes four relays: KA1, KA2, KA3, and KA4. The PLC controller is connected to each of the KA1, KA2, KA3, and KA4 relays.

[0014] Furthermore, the KA1 relay is used to replace the first row of contacts 11-12, 13-14, and 15-16 of the automatic switch of the switch machine; the KA2 relay is used to replace the second row of contacts 21-22, 23-24, and 25-26 of the automatic switch of the switch machine; the KA3 relay is used to replace the third row of contacts 31-32, 33-34, and 35-36 of the automatic switch of the switch machine; and the KA4 relay is used to replace the fourth row of contacts 41-42, 43-44, and 45-46 of the automatic switch of the switch machine. Then, the PLC controller controls the KA1, KA2, KA3, and KA4 relays to simulate the closing and opening of the automatic switch of the switch machine.

[0015] Furthermore, the switch machine control circuit includes a first excitation circuit, a second excitation circuit, a pole-switching circuit, and a self-closing circuit. The current acquisition device includes several current sensors. Current sensors are respectively installed on the first excitation circuit, the second excitation circuit, the pole-switching circuit, and the self-closing circuit. The current sensors sense the magnitude of the current in the circuit to determine whether a fault has occurred in the circuit.

[0016] Furthermore, the voltage acquisition device includes three voltage sensors, which are respectively installed on the three power lines of the three-phase motor power supply circuit. The circuit is judged to have faults by detecting the voltage of the three-phase power lines.

[0017] Furthermore, both the voltage and current sensors are connected to the analog input terminals of the PLC controller, and the fault location is then displayed on a screen.

[0018] Furthermore, when setting fault points, the PLC controller controls the KA1, KA2, KA3, and KA4 relays to set the corresponding fault points. Then, students troubleshoot the faults, and finally, the system automatically displays whether the fault points match the students' troubleshooting results, thus completing the automatic troubleshooting training.

[0019] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0020] This invention uses a low-cost, small-sized acquisition module to locate faults by collecting circuit current. Users can check fault alerts via a mobile app, which helps to verify the accuracy of the fault range predicted by the user based on the phenomenon, thus improving troubleshooting efficiency. Compared with the expensive MSS system currently used by enterprises, it is more convenient and faster, and the assembly is simple. The equipment can be controlled via mobile phone, and novice operators can learn and get started quickly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the electric switch machine simulation device of the present invention;

[0022] Figure 2This invention relates to the switch machine control motor circuit;

[0023] Figure 3 This invention relates to a conventional switch machine control circuit;

[0024] Figure 4 This is a schematic diagram of the switch machine circuit control principle of the present invention;

[0025] Figure 5 This is a schematic diagram of the DC and AC circuits of the switch machine control motor circuit of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of the present invention, and these aspects of the invention can be implemented even without these specific details.

[0027] like Figure 1-3 As shown, the intelligent troubleshooting training platform for five-wire turnout switching equipment includes a three-phase motor power supply circuit and a turnout control circuit. Its features include a turnout simulation device, a voltage acquisition device, and a current acquisition device. The three-phase motor power supply circuit is connected to the motor via the turnout simulation device. The turnout control circuit is connected to the turnout simulation device. The voltage acquisition device is installed on the three-phase motor power supply circuit and connected to the turnout simulation device. The current acquisition device is installed on the turnout control circuit and connected to the turnout simulation device.

[0028] A PLC is used to detect circuit current status using a current acquisition module to diagnose faults in the control circuit of a rail transit switch machine. A voltage acquisition module is used to determine if a phase is missing in the three-phase voltage. A mobile APP can also be used to provide fault alerts. In other words, the mobile phone communicates with the PLC. When a fault occurs, the acquisition module will not be able to collect the corresponding current and voltage status, so the mobile phone will not receive the information, thus popping up a fault alarm. Users can click on the fault alert module in the APP to view the fault circuit prompts, thereby improving the purpose of fault diagnosis and inspection.

[0029] In embodiments of the present invention, such as Figure 1 As shown, the switch machine simulation device includes a PLC controller and a relay unit. The PLC controller is connected to the relay unit for control. The relay unit includes four relays: KA1, KA2, KA3, and KA4. The PLC controller is connected to each of these relays for control.

[0030] like Figure 1 and Figure 2As shown, relay KA1 is used to replace the first row of contacts 11-12, 13-14, and 15-16 of the automatic switch mechanism; relay KA2 is used to replace the second row of contacts 21-22, 23-24, and 25-26 of the automatic switch mechanism; relay KA3 is used to replace the third row of contacts 31-32, 33-34, and 35-36 of the automatic switch mechanism; and relay KA4 is used to replace the fourth row of contacts 41-42, 43-44, and 45-46 of the automatic switch mechanism. Then, the PLC controller controls relays KA1, KA2, KA3, and KA4 to simulate the closing and opening of the automatic switch mechanism.

[0031] In this embodiment of the invention, the switch machine control circuit includes a first excitation circuit, a second excitation circuit, a pole-switching circuit, and a self-closing circuit. The current acquisition device includes several current sensors. Current sensors are respectively installed on the first excitation circuit, the second excitation circuit, the pole-switching circuit, and the self-closing circuit. The current sensors detect the magnitude of the current in the circuit to determine whether a circuit fault has occurred. Figure 4 and Figure 5 As shown, the circuit includes the excitation circuit of 1DQJ (full name: first turnout starting relay); the polarity switching circuit of 2DQJ (full name: second turnout starting relay); the excitation circuit of 1DQJF (full name: first turnout starting repeater relay); and the self-closing circuit of 1DQJ. This circuit is used to monitor whether the circuit is conducting and to realize the energizing of the 1DQJ relay, that is, the front contact is closed. When the three phases of the voltage in the circuit are normal, that is, the three phase voltage is not missing a phase, the BHJ of the 12-contact connected to DBQ will be energized to ensure the connection of the KZ-1DQJ-KF circuit. The remaining circuit is the turnout reverse position indication circuit, which includes AC circuit and DC circuit. The DC circuit is generated by the induced voltage generated by the energizing of the U and V phases of the three-phase motor.

[0032] In this embodiment of the invention, the voltage acquisition device includes three voltage sensors, which are respectively installed on the three power lines of the three-phase motor power supply circuit. The circuit is judged to have a fault by detecting the voltage of the three-phase power lines.

[0033] In this embodiment of the invention, both the voltage sensor and the current sensor are connected to the analog input terminal of the PLC controller, and then the fault point is displayed on the screen.

[0034] In this embodiment of the invention, when setting fault points, the PLC controller controls the KA1, KA2, KA3 and KA4 relays to set the corresponding fault points, then students troubleshoot, and finally the automatic display shows whether the fault points match the students' troubleshooting results, thus completing the automatic troubleshooting training.

[0035] Five-wire switch machines are expensive, but their mechanical components can be modified based on their working principle. The automatic opening and closing device of a five-wire switch machine controls the machine by mechanically changing the position of the contacts. This training platform simulates the function of the automatic opening and closing device using a PLC and intermediate relays.

[0036] The specific design process is as follows: Figure 1 The automatic switch in the circuit has multiple sets of contacts, which connect and disconnect the circuit according to the control requirements of the switch machine. Through design modifications, the contacts of the automatic switch are mapped one-to-one with the contacts of the intermediate relays according to their contact groups. For example, contacts 11-12, 13-14, and 15-16 of the automatic switch group correspond to... Figure 2 The wiring diagram for the PLC and intermediate relays is used to connect the contacts of relay KA1, and so on, to complete the connection of four sets of contacts. Based on the control requirements of the switch machine, a PLC control program is designed. For example, the output of Q0.2 is used to control the on / off state of relay KA3, thereby controlling the connection and disconnection of relays 31-32, 33-34, and 35-36. Through this modification, the functions of the automatic switch can be fully realized, with reliable performance.

[0037] After modification, the switch machine function can be realized by equipping it with the corresponding railway-specific relays, ordinary electrical relays and three-phase motors. The performance is reliable and the cost is greatly reduced.

[0038] Matters not covered in this invention are common knowledge.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A smart troubleshooting training platform for five-wire turnout switching equipment, comprising a three-phase motor power supply circuit and a turnout machine control circuit, characterized in that: It also includes a switch machine simulation device, a voltage acquisition device, and a current acquisition device. The three-phase motor power supply circuit is connected to the motor via the switch machine simulation device, the switch machine control circuit is connected to the switch machine simulation device, the voltage acquisition device is installed on the three-phase motor power supply circuit and connected to the switch machine simulation device, and the current acquisition device is installed on the switch machine control circuit and connected to the switch machine simulation device.

2. The intelligent troubleshooting training platform for five-wire turnout switching equipment according to claim 1, characterized in that: The switch machine simulation device includes a PLC controller and a relay device, with the PLC controller and the relay device being connected for control.

3. The intelligent troubleshooting training platform for five-wire turnout switching equipment according to claim 2, characterized in that: The relay device includes four relays: KA1, KA2, KA3, and KA4. The PLC controller is connected to each of the KA1, KA2, KA3, and KA4 relays.

4. The intelligent troubleshooting training platform for five-wire turnout switching equipment according to claim 3, characterized in that: The KA1 relay is used to replace the first row of contacts 11-12, 13-14, and 15-16 of the automatic switch mechanism; the KA2 relay is used to replace the second row of contacts 21-22, 23-24, and 25-26 of the automatic switch mechanism; the KA3 relay is used to replace the third row of contacts 31-32, 33-34, and 35-36 of the automatic switch mechanism; and the KA4 relay is used to replace the fourth row of contacts 41-42, 43-44, and 45-46 of the automatic switch mechanism. Then, the PLC controller controls the KA1, KA2, KA3, and KA4 relays to simulate the closing and opening of the automatic switch mechanism.

5. The intelligent troubleshooting training platform for five-wire turnout switching equipment according to claim 1, characterized in that: The switch machine control circuit includes a first excitation circuit, a second excitation circuit, a pole-switching circuit, and a self-closing circuit. The current acquisition device includes several current sensors. Current sensors are respectively installed on the first excitation circuit, the second excitation circuit, the pole-switching circuit, and the self-closing circuit. The current sensors sense the magnitude of the current in the circuit to determine whether a fault has occurred in the circuit.

6. The intelligent troubleshooting training platform for five-wire turnout switching equipment according to claim 5, characterized in that: The voltage acquisition device includes three voltage sensors, which are respectively installed on the three power lines of the three-phase motor power supply circuit. The circuit is judged to have faults by detecting the voltage of the three-phase power lines.

7. The intelligent troubleshooting training platform for five-wire turnout switching equipment according to claim 5, characterized in that: Both the voltage and current sensors are connected to the analog input terminals of the PLC controller, and the fault location is then displayed on the screen.

8. The intelligent troubleshooting training platform for five-wire turnout switching equipment according to claim 6, characterized in that: When setting fault points, the PLC controller controls the KA1, KA2, KA3 and KA4 relays to set the corresponding fault points, then students troubleshoot the faults, and finally the automatic display shows whether the fault points match the students' troubleshooting results, thus completing the automatic troubleshooting training.

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