Railway yard track circuit large-area abnormity remote alarm system

Abstract

The utility model provides a railway yard track circuit large area abnormity remote alarm system, comprising a plurality of groups of group control computer I / O templates, a PLC controller, an industrial control computer, a display and an alarm device, a plurality of track section branches are connected with the PLC controller through a group of group control computer I / O templates, and the PLC controller is connected with the display through the industrial control computer; each track section branch is provided with a power supply air switch, and the output position of the power supply air switch is provided with a power transmission power supply control relay; and each track section shunt power supply is connected to alarm equipment through a power transmission power supply control relay contact. The system can quickly determine the accurate position of the fault of the large-area railway yard track circuit, can directly reach the site when the fault is found, and greatly improves the fault processing efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway circuit alarms, relates to railway track circuit fault alarms, and is specifically a large-area abnormal remote alarm system for railway station track circuits. Background Art

[0002] Railway transportation at industrial and mining enterprises primarily relies on shunting operations. The density of on-site switches, signals, and track section equipment used for line switching is high, and the cables controlling these signaling devices are complex and intertwined, with cable diverter boxes densely distributed throughout the facility. The track section power supply circuit is supplied by a single main cable, which branches off on-site to supply power to individual sections. Because the cables are buried directly underground, they are prone to damage during maintenance and construction. A short circuit in one of these branches can cause a "red light band" failure across a large area of ​​the railway station's track sections, terminating switching equipment and signal display devices. Troubleshooting requires manual on-site testing and tracing between each cable diverter box using tools such as multimeters, which is extremely time-consuming and severely impacts production organization.

[0003] Currently, many track circuit current monitoring systems exist. They can predict potential track circuit hazards, such as impending short circuits, by analyzing current changes, allowing for proactive intervention and resolution. However, when "red light band" faults occur simultaneously across multiple sections, there are few solutions for quickly locating and resolving the faults, as well as providing clear on-site notification of the fault's location. Utility Model Content

[0004] The purpose of the utility model is to provide a large-area abnormal remote alarm system for the track circuit of a railway station, which can narrow and quickly grasp the scope of the fault, realize the rapid processing of large-area red light band faults in the railway track section, and improve production efficiency.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is:

[0006] A remote alarm system for large-scale abnormalities in track circuits in railway stations includes multiple groups of remote control machine I / O templates, PLC controllers, industrial computers, displays, and alarm equipment. Multiple track section branches are connected to the PLC controller through a group of remote control machine I / O templates, and the PLC controller is connected to the display through the industrial computer. Each track section branch is installed with a power circuit breaker, and a power supply control relay is installed at the output of the power circuit breaker. The power supply of each track section branch is connected to the alarm equipment through the power supply control relay contacts.

[0007] The PLC adopts Siemens S7-400 standard controller.

[0008] The alarm device includes a buzzer and an alarm light.

[0009] The beneficial effects of the present invention are as follows: the system can collect cable power status information by rearranging the power supply of the on-site track section, quickly determine the precise location of the on-site fault, determine the adapter box that controls the faulty cable, and achieve direct access to the site when the fault is discovered, greatly improving the efficiency of fault handling and reducing the impact on production. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the system structure of the utility model;

[0011] In the figure, 1. I / O template of sub-control machine; 2. PLC controller; 3. Industrial computer; 4. Display; 5. Alarm device; 6. Power circuit breaker; 7. Power supply control relay; 8. Power supply. DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to the accompanying drawings:

[0013] A remote alarm system for large-scale abnormalities in track circuits in railway stations, such as Figure 1 As shown, it includes multiple groups of control machine I / O templates 1, PLC controllers 2, industrial computers 3, displays 4 and alarm devices 5. Multiple track section branches are connected to the PLC controller through a group of control machine I / O templates 1. The PLC controller adopts the Siemens S7-400 standard controller. The PLC controller 2 is connected to the display 4 through the industrial computer 3; each track section branch is installed with a power circuit breaker 6, and a power supply control relay 7 is installed at the output of the power circuit breaker 6; each track section branch power 8 is connected to the alarm device 5 through the power supply control relay 7 contacts. The alarm device 5 includes a buzzer and an alarm light.

[0014] If a short circuit occurs in the power supply of a certain track section, the track section power supply circuit breaker 6 will trip and disconnect the power supply, the power supply relay 7 will lose magnetism and fall, and the 24V DC power supply of the sub-control machine will be at a low potential of "0". The sub-control machine will feed back the short circuit signal to the industrial computer through the PLC, and the industrial computer will display the information of this power supply failure on the display. At the same time, the power supply of each track section will be connected to the alarm device 5 through the power supply control relay 7 contacts through the sub-control machine I / O template 1. If the power supply of a certain track section fails, the power supply control relay 7 contacts will fall, and the joint alarm device will give an alarm prompt.

[0015] In addition, the power supply voltage information for all track sections can be transmitted from the track to the slave controller I / O template via data lines. The collected track input information is filtered by software and stored in a specified track display area. This information is then fed back to the PLC controller. If a section is normal, the slave controller will display a white light band. If a section is faulty, the slave controller will display a red light band. If a power supply failure occurs on each power supply line, only a small number of sections are faulty, and these small sections are displayed on the slave controller, the fault can be corrected in a very short time, greatly reducing troubleshooting time.

Claims

1. A remote alarm system for large-area abnormalities in track circuits in railway stations, characterized by: It includes multiple groups of control machine I / O templates, PLC controllers, industrial computers, displays and alarm equipment. Multiple track section branches are connected to the PLC controller through a group of control machine I / O templates, and the PLC controller is connected to the display through the industrial computer; each track section branch is installed with a power circuit breaker, and a power supply control relay is installed at the output of the power circuit breaker; each track section branch power is connected to the alarm equipment through the power supply control relay contacts.

2. The railway station track circuit large-area abnormality remote alarm system according to claim 1 is characterized by: The PLC adopts Siemens S7-400 standard controller.

3. The railway station track circuit large-area abnormality remote alarm system according to claim 1 is characterized by: The alarm device includes a buzzer and an alarm light.

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