Factory construction method for railway signal machine room

Abstract

The invention provides a railway signal machine room factory-like construction method, and relates to the technical field of machine room construction, and the method comprises the steps: firstly, based on a modularized signal plane layout diagram, a modularized interlocking table, a modularized circuit diagram and an inter-cabinet wiring diagram which take a machine cabinet of a signal machine room as a basic unit, constructing a modularized signal plane layout diagram; the method comprises the following steps: pre-assembling cabinets in a signal machine room in a factory, and testing a pre-assembled signal system; afterwards, marking and disassembling the signal system after the test is completed, transporting the disassembled cabinet into a machine room, and performing plug-in assembly according to the mark to complete the construction of the signal machine room; wherein the test on the signal system comprises a conduction test, a relay circuit test and a simulation test. The factory construction method for the railway signal machine room is used for improving the construction efficiency of the signal machine room and shortening the site construction time.

Description

Technical Field

[0001] The present application relates to the technical field of machine room construction, and in particular to a factory-based construction method for a railway signal machine room. Background Art

[0002] Railway signal rooms house a large number of devices, each of which has high asset value and a significant impact on train operation control and traffic management. Railway signal room construction sites are relatively rare, primarily located at stations, relay stations, line stations, base stations, and station booths, accounting for approximately 18% of the overall weak current engineering construction workload.

[0003] Under traditional construction methods, once the signal room is ready for installation, it typically takes 45 to 60 days to install cabinets, distribute wiring, connect connections, install equipment, debug individual units, and conduct indoor simulation tests. This is primarily due to the extensive cabling and wire bonding involved in signal room construction.

[0004] Based on this, there is an urgent need for a construction method for a signal room to improve the construction efficiency of the signal room and shorten the on-site construction time. Summary of the Invention

[0005] The purpose of this application is to provide a factory-based construction method for a railway signal room, which is used to improve the construction efficiency of the signal room and shorten the on-site construction time.

[0006] This application provides a factory-based construction method for a railway signal room, comprising: Based on the modular signal plan layout, modular interlocking table, modular circuit diagram and inter-cabinet wiring diagram with the cabinets in the signal room as the basic unit, the cabinets in the signal room are pre-assembled in the factory, and the signal system obtained after the pre-assembly is tested; after the test is completed, the signal system is marked and disassembled, and the disassembled cabinets are transported to the room for plug-in assembly according to the markings to complete the construction of the signal room; wherein, the test of the signal system includes: conduction test, relay circuit test and simulation test.

[0007] Optionally, the modular signal plan layout diagram, modular interlocking table and modular circuit diagram are obtained based on the following steps: obtaining the original signal plan layout diagram, the original interlocking table and the original circuit diagram, and obtaining the modular signal plan layout diagram, the modular interlocking table and the modular circuit diagram with the combination cabinet as the basic unit by adjusting the combination arrangement table; wherein the combination arrangement table is used to describe the connection relationship between each basic unit in the combination cabinet.

[0008] Optionally, after obtaining the modular signal plan layout diagram, the modular interlocking table, and the modular circuit diagram with the combination cabinet as the basic unit by adjusting the combination arrangement table, the method further includes: generating the inter-cabinet wiring diagram between each cabinet based on the modular circuit diagram.

[0009] Optionally, the testing of the signal system obtained after pre-assembly includes: using a multi-core cable continuity tester matched with the bundled cables and connectors to perform a continuity test on the open circuit and short circuit of the wiring cables between the cabinets.

[0010] Optionally, the test of the signal system obtained after pre-assembly includes: simulating the drive and acquisition status of the computer interlocking and train control center through a drive and acquisition simulation test box, performing a drive and acquisition alignment test of the relay circuit, and completing the relay circuit test.

[0011] Optionally, the testing of the signal system obtained after pre-assembly includes: using signal machines, switches and track simulators to carry out indoor simulation tests of signal interlocking to complete the simulation test; wherein, the simulation test includes at least one of the following: simulating the lighting status of outdoor signal machines, simulating the switch indication status, simulating the occupancy of outdoor track circuits, simulating the clearing status, simulating the test track circuit carrier frequency, and simulating the track circuit code sequence.

[0012] Optionally, the disassembled cabinets are transported to the machine room and assembled in a plug-in manner according to the markings to complete the construction of the signal machine room, including: completing the cable connections between the cabinets based on the inter-cabinet wiring diagram and the markings of the cabinets.

[0013] Optionally, the cabinets are connected by cables through plug-in wiring.

[0014] Optionally, the disassembled cabinets are transported to the machine room and assembled in a plug-in manner according to the markings to complete the construction of the signal room, including: after completing the cable connection between the cabinets, conducting indoor simulation tests, hanging tests, and interlocking tests, and completing the construction of the signal room after the tests are passed.

[0015] The factory-based construction method for a railway signal room provided by the present application is as follows: first, based on a modular signal plan layout diagram, a modular interlocking table, a modular circuit diagram, and an inter-cabinet wiring diagram that takes the cabinets of the signal room as the basic unit, the cabinets in the signal room are pre-assembled in the factory, and the signal system obtained after the pre-assembly is tested; then, after the test is completed, the signal system is marked and disassembled, and the disassembled cabinets are transported to the room for plug-in assembly according to the markings to complete the construction of the signal room; wherein, the test of the signal system includes: a conduction test, a relay circuit test, and a simulation test. In this way, by pre-assembling and testing the cabinets in the factory and then transporting them to the room for assembly, the construction efficiency of the signal room is greatly improved and the on-site construction time is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present application 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is one of the flow charts of the factory construction method of the railway signal room provided by this application; Figure 2 This is the second flow chart of the factory construction method of the railway signal room provided by this application. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0019] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0020] The following is a detailed description of the professional terms involved in the embodiments of this application: Signal interlocking refers to the technical interlocking relationships established between signals, switches, and approaches to ensure the safety of train operations and shunting at railway stations. Signal rooms contain various cabinets, such as modular cabinets. These cabinets primarily house relays, power supplies, and other electrical components. They connect indoor and outdoor signaling equipment with cables, reflecting the status of track circuits, switches, and signals, and controlling them through related operations, thereby controlling train and shunting operations. These modular cabinets contain the most equipment, require the most wiring, and are the most complex to construct, resulting in the heaviest engineering effort.

[0021] Signal cabinet signal plans: These are technical drawings typically drawn from a scaled station plan, illustrating the layout of signal equipment. These drawings include the location and designation of approach signals, exit signals, and shunting signals. Specifically: Arrival signals: These signals protect the station, indicating whether trains can enter the station from a certain section and interlocking with opposing approaches. Once activated, these signals ensure safe and reliable approaches. Exit signals: These signals protect the section and serve as proof of train occupation. They indicate whether trains can depart from the station for another section and indicate where to stop within the station to prevent crossing warning signs. Shunting signals: Shunting signals are used to signal shunting locomotives. They are typically installed on lines with heavy shunting activity, such as arrival and departure lines, at bottleneck switch areas, and at the entrances from non-interlocking areas to interlocking areas. On arrival and departure lines, exit signals can also be equipped with a moon-white light to allow shunting, creating combined exit and shunting signals.

[0022] Railway signal rooms house a large number of equipment, possess high asset value, and significantly impact train operation control and traffic management. Railway signal room construction sites are relatively limited, primarily located at stations, relay stations, line stations, base stations, and signal booths, accounting for approximately 18% of the overall weak current engineering construction workload. Under traditional construction methods, once the signal room is ready for installation, cabinet installation, wiring, connection, equipment installation, single-unit commissioning, and indoor simulation testing typically take 45 to 60 days. This is primarily due to the extensive cable routing and wire bonding involved in signal room construction, which places high demands on overall project quality control, is labor-intensive, requires a large on-site workforce, creates a dense construction environment, presents significant safety risks, and presents significant technical challenges. This is particularly true in existing line reconstruction projects, overseas projects, and projects in harsh environments, where tight deadlines, labor shortages, material shortages, and poor construction environments present significant challenges.

[0023] Signal room construction includes cabinet assembly, cable tray installation, cable routing, and cabinet wiring. After completion, continuity testing and interlocking tests are performed. During construction, the following issues often arise:

[0024] 1. On-site wiring and distribution is a heavy workload. On-site wiring and distribution in the signal room requires a lot of technical labor, especially the wiring of the modular cabinet uses the wire welding process, which is technically difficult, labor-intensive, and has a long construction period.

[0025] 2. Construction schedules are easily constrained by equipment room conditions. New railways face the risk of delayed delivery, while renovations of existing lines are subject to time constraints. External factors can severely impact construction schedules.

[0026] 3. Construction quality is highly dependent on the site environment and skill level. The skill threshold for welding wires in modular cabinets is high. Although efforts can be made to cultivate highly skilled personnel, the poor conditions on construction sites make it difficult to guarantee the quality of manual welding, which may pose certain quality risks.

[0027] 4. Construction safety risks exist. Indoor construction in new equipment rooms requires temporary power or generator connections for wire welding, posing a fire hazard. Workers using soldering irons face the risk of burns.

[0028] 5. Equipment commissioning and interlocking testing are subject to constraints. Equipment commissioning and interlocking testing require a large workload and require lengthy verification. Equipment power-on commissioning requires the use of a standard power supply, which can be affected by the timing of power transmission to newly constructed railways, potentially impacting the normal progress of equipment commissioning and interlocking testing.

[0029] In response to the above technical problem of long construction period of signal room in related technologies, the embodiment of the present application provides a factory construction method for railway signal room, which mainly improves the engineering design link compared with the traditional construction process, and newly adds three links: factory pre-installation and pre-configuration, factory testing, and on-site assembly construction. Figure 1 As shown, this method primarily includes factory-based engineering design, factory-based pre-installation and pre-assembly, factory-based testing, and on-site prefabricated construction. This factory-based construction process for railway signal rooms eliminates, optimizes, or pre-positions most labor-intensive and risky operations (such as wire welding, cable routing, and termination) in traditional on-site construction, reduces installation and testing time, typically 45-60 days, to just 7-10 days. This significantly reduces on-site construction time and improves construction efficiency, significantly mitigating quality and safety risks in current signal room construction, stabilizing the construction process, and ensuring project safety and quality.

[0030] The factory-based construction method for a railway signal room provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0031] like Figure 2 As shown, an embodiment of the present application provides a factory-based construction method for a railway signal room, which may include the following steps 201 and 202: Step 201: Based on the modular signal plan layout diagram, modular interlocking table, modular circuit diagram, and inter-cabinet wiring diagram using the cabinets in the signal room as the basic unit, the cabinets in the signal room are pre-assembled in the factory, and the signal system obtained after the pre-assembly is tested.

[0032] For example, in the traditional model, all processes are completed on-site. After wiring is complete, conduction, equipment installation, indoor interlocking simulation tests, coupling tests, and interlocking tests are carried out in sequence. In contrast, the factory-based construction process for railway signal rooms incorporates factory pre-installation and pre-configuration. Pre-configuration construction is carried out according to drawings derived from factory-based engineering designs. Each indoor signal system is organized into cabinets, and indoor equipment installation and wiring are completed centrally in the pre-configuration factory. After factory testing, the equipment is disassembled, labeled, and transported.

[0033] Step 202: After the test is completed, the signal system is marked and disassembled, and the disassembled cabinet is transported to the machine room for plug-in assembly according to the markings to complete the construction of the signal room.

[0034] The test of the signal system includes: conduction test, relay circuit test and simulation test.

[0035] For example, in an embodiment of the present application, before step 201, the modular signal floor plan, modular interlocking table, and modular circuit diagram are obtained based on the following step 203: Step 203: Obtain the original signal plan layout diagram, the original interlocking table, and the original circuit diagram, and obtain the modular signal plan layout diagram, the modular interlocking table, and the modular circuit diagram based on the combination cabinet as the basic unit by adjusting the combination arrangement table.

[0036] The combination arrangement table is used to describe the connection relationship between the basic units in the combination cabinet.

[0037] For example, the signal plan layout diagram, interlocking table and circuit diagram can be designed first by traditional design methods. Then, while keeping the signal plan layout diagram, interlocking table and circuit diagram unchanged, the combination arrangement table is adjusted to form a "modular" plan layout, interlocking table and circuit diagram based on the combination cabinet.

[0038] Illustratively, after the above step 203, the factory-based construction method for a railway signal room provided in the embodiment of the present application may further include the following step 204: Step 204: Generate the inter-cabinet wiring diagram between the cabinets based on the modular circuit diagram.

[0039] For example, in embodiments of the present application, a wiring diagram can be generated using auxiliary software. The wiring diagram generated by the auxiliary software only includes the wiring diagram between cabinets, simplifying the wiring nodes. Pre-installation and pre-configuration construction is guided by a floor plan, interlocking table, circuit diagram, and wiring diagram.

[0040] Specifically, the above step 201, which is a step of conducting the test, may further include the following step 201a: Step 201a: A multi-core cable continuity tester that is compatible with bundled cables and connectors is used to perform a continuity test on the open and short circuits of the wiring cables between cabinets.

[0041] Specifically, the above step 201, which is a step for the relay circuit test, may further include the following step 201b: Step 201b: Use a drive-collection simulation test box to simulate the drive-collection status of the computer interlocking and the train control center, perform a drive-collection alignment test of the relay circuit, and complete the relay circuit test.

[0042] Specifically, the above step 201, which is a step of the simulation test, may further include the following step 201c: Step 201c: Conduct indoor simulation test of signal interlocking using signal machines, switches and track simulators to complete the simulation test.

[0043] The simulation test includes at least one of the following: simulating the lighting status of outdoor signal lights, simulating the switch indication status, simulating the occupancy of outdoor track circuits, simulating the clearing status, simulating the test track circuit carrier frequency, and simulating the track circuit code sequence.

[0044] For example, the factory-based construction process for railway signal rooms moves testing to pre-construction, conducting continuity tests, relay circuit tests, and simulation tests in the pre-configuration factory. The continuity test utilizes a multi-core cable continuity tester, compatible with bundled cables and connectors, to detect open and short circuits in inter-cabinet wiring cables. Relay circuit tests utilize a drive and acquisition simulation test chamber to simulate the drive and acquisition states of the computer interlocking and train control center, allowing for relay circuit alignment tests. Indoor signal interlocking simulation tests are conducted using signal machines, turnouts, and track simulators. These simulate outdoor signal lighting states, turnout indication states, and outdoor track circuit occupancy and clearance states, testing track circuit carrier frequency, track circuit code sequence, and other functions. After completing the factory-based testing, the pre-configured equipment is disassembled, labeled, and transported for prefabricated construction at the construction site.

[0045] Specifically, the above step 202 may further include the following step 202a: Step 202a: Based on the inter-cabinet wiring diagram and the markings of each cabinet, complete the cable connection between the cabinets.

[0046] In a possible implementation, the cabinets are connected to each other by cables through plug-in wiring.

[0047] It can be understood that since the modular design is carried out with the cabinet as the basic unit in the embodiment of the present application, the circuits and devices inside the cabinet can be assembled in the factory. After the test is completed without any problems, the cabinet can be transported to the computer room for assembly. Therefore, the wiring between the cabinets can be completed by plug-in wiring, and the construction of the signal room can be completed.

[0048] Specifically, after step 202a, step 202 may further include the following step 202b: Step 202b: After completing the cable connection between the cabinets, conduct indoor simulation test, hanging test, and interlocking test. After the test passes, the construction of the signal room is completed.

[0049] For example, after the signal machinery room is ready for equipment installation, the factory-made equipment transported from the pre-assembled base will be assembled and restored at the construction site. There is no need for a large number of wiring and welding processes like in the traditional mode. The on-site assembly construction can be completed by simply reconnecting the lines between the cabinets according to the markings. Then, only indoor simulation tests, coupling tests, and interlocking tests are required to complete the entire factory-made construction process of the railway signal room.

[0050] The factory-based construction method for a railway signal room provided in an embodiment of the present application is as follows: first, based on a modular signal plan layout diagram, a modular interlocking table, a modular circuit diagram, and an inter-cabinet wiring diagram with the cabinets of the signal room as the basic unit, the cabinets in the signal room are pre-assembled in the factory, and the signal system obtained after the pre-assembly is tested; then, after the test is completed, the signal system is marked and disassembled, and the disassembled cabinets are transported to the machine room for plug-in assembly according to the markings to complete the construction of the signal room; wherein, the test of the signal system includes: a conduction test, a relay circuit test, and a simulation test. In this way, by pre-assembling and testing the cabinets in the factory and then transporting them to the machine room for assembly, the construction efficiency of the signal room is greatly improved and the on-site construction time is shortened.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application 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 application.

Claims

1. A factory construction method for a railway signal room, characterized in that: include: Based on the modular signal plan layout diagram, modular interlocking table, modular circuit diagram and inter-cabinet wiring diagram with the cabinet of the signal room as the basic unit, the cabinet in the signal room is pre-assembled in the factory, and the signal system obtained after pre-assembly is tested; After the test is completed, the signal system is marked and disassembled, and the disassembled cabinet is transported to the machine room for plug-in assembly according to the markings to complete the construction of the signal room; The test on the signal system includes: conduction test, relay circuit test and simulation test.

2. The method according to claim 1, characterized in that: The modular signal plan layout diagram, modular interlocking table and modular circuit diagram are obtained based on the following steps: Obtaining an original signal plan layout diagram, an original interlocking table, and an original circuit diagram, and obtaining the modular signal plan layout diagram, the modular interlocking table, and the modular circuit diagram with the combination cabinet as a basic unit by adjusting the combination arrangement table; The combination arrangement table is used to describe the connection relationship between the basic units in the combination cabinet.

3. The method according to claim 2, characterized in that After the modular signal plan layout diagram, the modular interlocking table, and the modular circuit diagram are obtained by adjusting the combination arrangement table, taking the combination cabinet as the basic unit, the method further includes: The inter-cabinet wiring diagram of each cabinet is generated based on the modular circuit diagram.

4. The method according to claim 1, characterized in that: The testing of the signal system obtained after the pre-assembly includes: By using a multi-core cable continuity tester that is compatible with bundled cables and connectors, the open and short circuit continuity test of the wiring cables between cabinets can be achieved.

5. The method according to claim 1, characterized in that The testing of the signal system obtained after the pre-assembly includes: The drive and acquisition simulation test box is used to simulate the drive and acquisition status of the computer interlocking and the train control center, and the drive and acquisition alignment test of the relay circuit is carried out to complete the relay circuit test.

6. The method according to claim 1, characterized in that The testing of the signal system obtained after the pre-assembly includes: Conduct indoor simulation tests of signal interlocking using signal machines, turnouts and track simulators to complete the simulation tests; The simulation test includes at least one of the following: simulating the lighting status of outdoor signal lights, simulating the switch indication status, simulating the outdoor track circuit occupancy, simulating the clearing status, simulating the test track circuit carrier frequency, and simulating the track circuit code sequence.

7. The method according to claim 1, characterized in that The disassembled cabinet is transported to the equipment room and assembled according to the markings to complete the construction of the signal room, including: Based on the inter-cabinet wiring diagram and the markings of each cabinet, complete the cable connection between the cabinets.

8. The method according to claim 1, characterized in that Each cabinet is connected by cables through plug-in wiring.

9. The method according to claim 7 or 8, characterized in that: The disassembled cabinet is transported to the equipment room and assembled according to the markings to complete the construction of the signal room, including: After completing the cable connection between the cabinets, indoor simulation test, hanging test and interlocking test are carried out, and after the test is passed, the construction of the signal room is completed.

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