Turnout position redundancy acquisition device

Abstract

The utility model relates to a turnout position redundancy acquisition device, which comprises a power supply unit (PSU), a point switch automatic shutter and a communication unit (CU), the power supply unit (PSU) is connected with the point switch automatic shutter, and the communication unit (CU) is respectively connected with vehicle-mounted equipment, a trackside resource manager, a trackside electronic unit and existing turnout acquisition equipment. The redundancy collection device further comprises a trackside intelligent target controller (TIOC) connected with the communication unit (CU), the switch machine automatic opening and closing device comprises four groups of nodes, three groups of nodes are connected with existing turnout collection equipment, the rest group of nodes are connected with the trackside intelligent target controller (TIOC), and therefore redundancy collection of the turnout position of the trackside signal equipment is achieved. Compared with the prior art, the system has the advantages that the influence of state acquisition faults of the switch machine is reduced, the operation efficiency and safety of the whole rail transit network are improved, and the like.

Description

Technical Field

[0001] This utility model relates to a turnout position acquisition device, and more particularly to a turnout position redundant acquisition device. Background Technology

[0002] With the rapid development of the global rail transit industry, rail transit signaling systems have also developed rapidly, and the redundancy of various systems is increasing. However, the redundancy of turnout switching machines, a critical signaling infrastructure, has not increased accordingly, thus posing the following potential faults:

[0003] 1. Significant impact of switch machine failures: As the core equipment for turnout control in rail transit, switch machine failures will directly prevent trains from passing through turnout sections in ATP protection mode, resulting in degraded train operation and manual safety assurance. The average duration of operational disruption is more than 20 minutes. Hardware failures of the switch machine account for only a small portion of the failures. The vast majority of failures are faults on the path from the trackside signaling system equipment to the automatic switch machine gate node status. Fault types include interlocking acquisition board failures, relay failures, indoor and outdoor cable connection failures, and automatic switch node failures.

[0004] 2. Low redundancy in switch machine status acquisition: In the current technical solution, the path for acquiring the status of the automatic switch machine node from the trackside signaling equipment is a single path. A fault at any point on the path may cause the signaling system to lose the acquisition of the switch position, thereby causing system degradation and preventing trains from passing through the switch section normally. If the fault occurs in the turnaround area, the switch position can only be confirmed manually, which poses a safety risk.

[0005] 3. The automatic switch machine has insufficient nodes, which cannot meet the technical solution of redundant data acquisition. The signal system interlocking equipment and the 5-wire switch machine interface are connected to the switch machine through the trackside HZ-24 box. The first and fourth sets of contacts of the switch machine's internal switch are all used, so they cannot form an indication loop with the second and third sets of contacts.

[0006] For the reasons mentioned above, the current signaling system is relatively weak in terms of the status acquisition of switch machines. Once a fault occurs, the recovery time is long, which not only affects the normal operation of trains, but may also have a significant impact on the operational efficiency of the entire rail transit network.

[0007] A search revealed that Chinese patent publication CN210155269U discloses a relay timing fault detection device for switch machine equipment, specifically including an MSS station machine, an MSS cabinet, a turnout action collector, and a relay node information collector. The MSS station machine is connected to the turnout action collector and the relay node information collector respectively through the MSS cabinet. However, this existing patent still cannot solve the above-mentioned problem.

[0008] Therefore, how to enhance the redundant acquisition of turnout positions by trackside signaling equipment, thereby reducing the risk of train degradation due to a single equipment failure, has become a technical problem that needs to be solved. Utility Model Content

[0009] The purpose of this invention is to overcome the defects of the existing technology and provide a turnout position redundancy acquisition device.

[0010] The objective of this utility model can be achieved through the following technical solutions:

[0011] According to one aspect of the present invention, a redundant turnout position acquisition device is provided, comprising a power supply unit (PSU), an automatic switch machine opener / closer, and a communication unit (CU). The power supply unit (PSU) is connected to the automatic switch machine opener / closer, and the communication unit (CU) is connected to on-board equipment, a trackside resource manager, a trackside electronic unit, and existing turnout acquisition equipment. The redundant acquisition device further includes a trackside intelligent target controller (TIOC) connected to the communication unit (CU). The automatic switch machine opener / closer includes four sets of nodes, three of which are connected to the existing turnout acquisition equipment, and the remaining set of nodes is connected to the trackside intelligent target controller (TIOC), thereby realizing redundant acquisition of turnout positions of trackside signal equipment.

[0012] As a preferred technical solution, the power supply unit (PSU) is connected to the automatic switch machine switch via a 24VDC power supply interface.

[0013] As a preferred technical solution, the remaining set of nodes of the automatic switch machine includes nodes 17-18 and 37-38 for acquiring the turnout positioning position, and nodes 27-28 and 47-48 for acquiring the turnout reverse position.

[0014] As a preferred technical solution, the trackside intelligent target controller TIOC adds six sets of terminals for redundant acquisition of turnout positions.

[0015] As a preferred technical solution, the six sets of terminals include positive and negative terminals for DC power supply, positive and negative terminals for indicating the turnout's positioning status, and positive and negative terminals for indicating the turnout's reverse position.

[0016] As a preferred technical solution, the positive and negative terminals of the turnout positioning indication state are connected to nodes 17-18 and 37-38, respectively.

[0017] As a preferred technical solution, the positive and negative terminals of the turnout's reverse position indication state are connected to nodes 27-28 and 47-48, respectively.

[0018] As a preferred technical solution, the communication unit CU is connected to the vehicle-mounted equipment via wireless communication.

[0019] As a preferred technical solution, the communication unit CU is connected to the trackside resource manager via wired communication.

[0020] As a preferred technical solution, the communication unit CU is connected to the trackside electronic unit via wired communication.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1) This utility model provides redundant node acquisition for switch machine openers and closers, realizing that a single-path equipment failure does not affect system operation, i.e., "fault does not degrade";

[0023] 2) This utility model achieves a solution where the power supply, data acquisition, and communication paths are all independent of the existing signal system, and it can communicate with the existing signal system equipment, thereby improving the redundancy and availability of the existing signal system;

[0024] 3) This utility model realizes communication interfaces with different signal system equipment, meets the needs of different signal systems to obtain turnout positions, and has the potential for widespread application;

[0025] 4) This utility model reduces the impact of switch machine status acquisition failures and improves the operational efficiency and safety of the entire rail transit network. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the redundancy acquisition device for turnout position of this utility model;

[0027] Figure 2(a) is a schematic diagram of the nodes of the original automatic switch machine opening and closing device;

[0028] Figure 2(b) is a schematic diagram of the nodes of the automatic switch machine opening and closing device of this utility model;

[0029] Figure 3 This is a schematic diagram of the TIOC trackside intelligent target controller of this utility model;

[0030] Figure 4 This is a schematic diagram showing the specific connection between the trackside intelligent target controller TIOC and the automatic switch machine opening and closing device of this utility model;

[0031] Figure 5 This is a schematic diagram of the present invention used in a CBTC system;

[0032] Figure 6 This is a schematic diagram of the present invention used in the TACS system;

[0033] Figure 7 This is a schematic diagram of the present invention used in the SATC system;

[0034] Figure 8 This is a schematic diagram illustrating the working principle of this utility model. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0036] like Figure 1 As shown, this utility model discloses a redundant turnout position acquisition device, including a power supply unit (PSU), an automatic switch machine opener / closer, and a communication unit (CU). The power supply unit (PSU) is connected to the automatic switch machine opener / closer. The communication unit (CU) is connected to the on-board equipment, the trackside resource manager, the trackside electronic unit, and the existing turnout acquisition equipment. The redundant acquisition device also includes a trackside intelligent target controller (TIOC) connected to the communication unit (CU). The automatic switch machine opener / closer includes four sets of nodes, three of which are connected to the existing turnout acquisition equipment, and the remaining set of nodes is connected to the trackside intelligent target controller (TIOC), thereby realizing redundant acquisition of the turnout position of the trackside signal equipment.

[0037] The power supply unit (PSU) provides 24VDC power to the automatic switchgear acquisition circuit of the switch machine.

[0038] As shown in Figure 2, the new automatic switch machine opening and closing device has been modified from the existing three-set contact device to a newly designed four-set contact device. Three sets of nodes are connected to the existing turnout acquisition equipment, and the remaining set of nodes is connected to the Trackside Intelligent Target Controller (TIOC), thus achieving redundant acquisition of turnout positions from the trackside signaling equipment. The remaining set of nodes in the automatic switch machine opening and closing device includes nodes 17-18 and 37-38 for turnout positioning acquisition, and nodes 27-28 and 47-48 for turnout reversal position acquisition. The hardware design can accommodate the existing internal installation space of the switch machine.

[0039] like Figure 3 As shown, the Trackside Intelligent Target Controller (TIOC) is a new type of turnout position acquisition target controller. It can acquire two turnout positioning indicator lines and two turnout reverse position indicator lines to realize turnout position acquisition.

[0040] like Figure 4 As shown, the new automatic switch with 4 sets of contacts adds one more set of contacts than the existing automatic switch, and adds 6 new sets of terminal blocks to the existing 14 sets of terminal blocks for turnout acquisition circuit design.

[0041] The existing signal equipment control and acquisition switch machine circuit still uses the existing five-wire switch machine circuit, and uses the existing 14 sets of terminal blocks for internal and external wiring. The existing signal equipment controls the switch machine.

[0042] The Trackside Intelligent Target Controller (TIOC) uses six newly added terminal blocks for redundant acquisition of turnout position data. Terminals 19 / 20 serve as the positive and negative terminals for 24CV power supply, and terminals 15 / 16 serve as the positive and negative terminals for indicating the position status. The position indication circuit is connected through nodes 17-18 / 37-38, and the TIOC connector terminals c26 / e26 acquire the position indication status. Terminals 17 / 18 serve as the positive and negative terminals for indicating the reverse position status, and the reverse position indication circuit is connected through nodes 27-28 / 47-48. The TIOC connector terminals c30 / e30 acquire the reverse position indication status, thus achieving redundant acquisition of turnout position status by TIOC.

[0043] The existing signal system turnout acquisition equipment will still use the following automatic switch nodes according to the original design:

[0044] 11-12, 13-14, 15-16;

[0045] 23-24, 25-26;

[0046] 33-34, 35-36;

[0047] 41-42, 43-44, 45-46.

[0048] The trackside intelligent target controller TIOC is connected to the new automatic switch machine and powered by 24VDC. It uses nodes 17-18 and 37-38 of the automatic switch machine to collect the turnout positioning position, and nodes 27-28 and 47-48 to collect the turnout reversal position, thus achieving redundant collection of turnout position.

[0049] The communication unit (CU) is responsible for information communication between the trackside intelligent target controller (TIOC) and other devices, including wired and wireless communication. It sends the redundantly collected turnout positions to the signal system interlocking equipment, trackside resource manager, signal system on-board equipment, and trackside electronic unit equipment.

[0050] This invention can be used in different signaling systems and operating modes. After a turnout fault is detected by interlocking, this device will send the turnout position to different signaling devices to ensure the operation of different signaling systems.

[0051] The following examples use the basic configurations of CBTC, TACS, and SATC systems. The same principles and logic apply to other system configurations.

[0052] like Figure 5As shown, under the CBTC system, if the interlocking system collects the turnout position information at any point on the track, the interlocking system cannot obtain the turnout position status, the ZC will not be able to send movement authorization to the train, and the train will not be able to pass through the turnout section. This device sends the redundantly collected turnout position information to the interlocking equipment through network communication. After the interlocking equipment obtains the turnout position, it can ensure that the CBTC train operation is not degraded and can pass through the turnout section.

[0053] like Figure 6 As shown, in the TACS system, if the target controller collects fault information at any point on the turnout location path, the trackside resource manager cannot obtain the turnout location status and will be unable to allocate the turnout location and turnout resources to the train, preventing the train from passing through the turnout section. This device sends the redundantly collected turnout location information to the trackside resource manager via network communication. After the trackside resource manager obtains the turnout location, it can ensure that the TACS train operation is not degraded and can pass through the turnout section.

[0054] like Figure 7 As shown, under the SATC system, using this device to collect turnout positions can independently of the existing signaling system, sending the turnout positions to the onboard system or trackside electronic unit, ensuring that SATC trains do not degrade their operation when passing through turnout sections.

[0055] like Figure 8 As shown, the working principle of this utility model includes the following steps:

[0056] 1) The new automatic switch machine provides redundant acquisition nodes for both the signal system interlocking equipment and the trackside intelligent target controller TIOC.

[0057] 2) The power supply unit (PSU) provides power to the new automatic switch nodes. The trackside intelligent target controller (TIOC) realizes the function of collecting turnout positions using nodes 17-18, 37-38, 27-28, and 47-48 through the acquisition circuit.

[0058] 3) The communication unit (CU) sends the collected turnout positions to the signal system interlocking equipment, trackside resource manager, signal system on-board equipment, trackside electronic unit equipment, etc.

[0059] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A turnout position redundancy acquisition device, comprising a power supply unit (PSU), an automatic switch machine opener / closer, and a communication unit (CU), wherein the power supply unit (PSU) is connected to the automatic switch machine opener / closer, and the communication unit (CU) is connected to on-board equipment, a trackside resource manager, a trackside electronic unit, and existing turnout acquisition equipment, characterized in that, The redundant acquisition device also includes a trackside intelligent target controller (TIOC) connected to the communication unit (CU). The automatic switch machine opener includes four sets of nodes, three of which are connected to the existing turnout acquisition equipment, and the remaining set of nodes are connected to the trackside intelligent target controller (TIOC), thereby realizing redundant acquisition of the turnout position of the trackside signal equipment.

2. The turnout position redundancy acquisition device according to claim 1, characterized in that, The power supply unit (PSU) is connected to the automatic switch machine switch via a 24VDC power supply interface.

3. The turnout position redundancy acquisition device according to claim 1, characterized in that, The remaining set of nodes of the automatic switch machine includes nodes 17-18 and 37-38 for acquiring the turnout positioning position, and nodes 27-28 and 47-48 for acquiring the turnout reverse position.

4. The turnout position redundancy acquisition device according to claim 3, characterized in that, The newly added Trackside Intelligent Target Controller (TIOC) includes six sets of terminals for redundant acquisition of turnout positions.

5. The turnout position redundancy acquisition device according to claim 4, characterized in that, The six sets of terminals include positive and negative terminals for DC power supply, positive and negative terminals for indicating the turnout's positioning status, and positive and negative terminals for indicating the turnout's reverse position.

6. The turnout position redundancy acquisition device according to claim 5, characterized in that, The positive and negative terminals of the turnout positioning status are connected to nodes 17-18 and 37-38, respectively.

7. The turnout position redundancy acquisition device according to claim 5, characterized in that, The positive and negative terminals of the turnout's reverse position are connected to nodes 27-28 and 47-48, respectively.

8. The turnout position redundancy acquisition device according to claim 1, characterized in that, The communication unit (CU) is connected to the vehicle-mounted equipment via wireless communication.

9. The turnout position redundancy acquisition device according to claim 1, characterized in that, The communication unit (CU) is connected to the trackside resource manager via wired communication.

10. The turnout position redundancy acquisition device according to claim 1, characterized in that, The communication unit (CU) is connected to the trackside electronic unit via wired communication.

Images