Turnout position redundancy acquisition device and application method

Abstract

The invention relates to a turnout position redundancy acquisition device and an application method, the turnout position redundancy acquisition device 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 connected with a vehicle-mounted device, a trackside resource manager, a trackside electronic unit and an existing turnout acquisition device. 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 method has the advantages that the influence of state acquisition faults of the switch machine is reduced, and the operation efficiency and safety of the whole rail transit network are improved.

Description

Technical Field

[0001] The present invention relates to the technology for collecting the position of turnouts, and in particular to a redundant turnout position collection device and an application method thereof. Background Art

[0002] With the rapid development of the global rail transit industry, the rail transit signal system has also developed rapidly, and the redundancy of each system is getting higher and higher. However, the redundancy of the key signal infrastructure equipment, the turnout machine, has not increased accordingly. Therefore, there are the following potential faults:

[0003] 1. The influence of turnout machine failure is significant: As the core equipment for controlling rail transit turnouts, the failure of the turnout machine will directly cause the train to be unable to pass through the turnout section in the ATP protection mode, resulting in the train being downgraded and manually ensuring safety. The average operation time affected is more than 20 minutes. Among them, the hardware failure of the turnout machine only accounts for a small part of the failures. Most of the failures are on the path from the trackside signal system equipment to the state of the automatic switch node of the turnout machine. The failure types include interlocking acquisition board card failure, relay failure, indoor and outdoor cable connection failure, automatic switch node failure, etc.

[0004] 2. The redundancy of turnout machine state acquisition is low: In the current technical solutions, the paths for collecting the state of the automatic switch node of the turnout machine from the trackside signal equipment are all single paths. Any failure on the path may cause the signal system to lose the collection of the turnout position, resulting in system degradation and the train being unable to pass through the turnout section normally. If the failure occurs in the reversing area, only the turnout position can be manually confirmed, which poses a safety risk.

[0005] 3. The number of automatic switch nodes of the turnout machine is insufficient and cannot meet the technical solution of redundant acquisition. The signal system interlocking equipment interfaces with the 5-wire turnout machine and accesses the turnout machine through the trackside HZ-24 box. The first group and the fourth group of contacts of the internal switch of the turnout machine have all been used, so it is impossible to form an indication loop with the second group and the third group of contacts.

[0006] Due to the above reasons, the current signal system is weak in the toughness of the turnout machine state acquisition part. Once a failure occurs, the recovery time is long, which not only affects the normal operation of the train, but may also have a greater impact on the operation efficiency of the entire rail transit network.

[0007] After retrieval, Chinese Patent Publication No. CN210155269U discloses a relay timing fault detection device for turnout equipment, which specifically discloses including an MSS station machine, an MSS cabinet, a turnout action collector, and a relay node information collector. The MSS station machine is respectively connected to the turnout action collector and the relay node information collector through the MSS cabinet. However, this existing patent still cannot solve the above problems.

[0008] Therefore, how to strengthen the redundant acquisition of the switch position of trackside signal equipment, so as to reduce the risk of train degradation caused by single equipment failure, becomes a technical problem to be solved. Summary of the Invention

[0009] The purpose of the present invention is to provide a switch position redundant acquisition device and application method to overcome the defects of the above-mentioned existing technologies.

[0010] The purpose of the present invention can be achieved by the following technical solutions:

[0011] According to one aspect of the present invention, a switch position redundant acquisition device is provided, which includes a power supply unit PSU, a point machine automatic switch, and a communication unit CU. The power supply unit PSU is connected to the point machine automatic switch, and the communication unit CU is respectively connected to on-vehicle equipment, a trackside resource manager, a trackside electronic unit, and existing switch acquisition equipment. The redundant acquisition device further includes a trackside intelligent target controller TIOC connected to the communication unit CU. The point machine automatic switch includes four groups of nodes, where three groups of nodes are connected to the existing switch acquisition equipment, and the remaining group of nodes is connected to the trackside intelligent target controller TIOC, so as to realize the redundant acquisition of the switch position of trackside signal equipment.

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

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

[0014] As a preferred technical solution, the trackside intelligent target controller TIOC newly adds six groups of terminals for redundant acquisition of the switch position.

[0015] As a preferred technical solution, the six groups of terminals include positive and negative terminals for DC power supply, positive and negative terminals for the switch positioning indication state, and positive and negative terminals for the switch reverse indication state.

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

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

[0018] As a preferred technical solution, the communication unit CU is connected to the vehicle-mounted device by wireless communication, and the communication unit CU is respectively connected to the trackside resource manager and the trackside electronic unit by wired communication.

[0019] According to another aspect of the present invention, an application method using the turnout position redundant acquisition device is provided, including the application method of the CBTC system, the application method of the TACS system, and the application method of the SATC system.

[0020] As a preferred technical solution, the application method of the CBTC system is specifically as follows:

[0021] When any point on the turnout position path is faulty as detected by the interlocking system, the redundant acquisition device sends the redundantly acquired turnout position information to the interlocking system. After the interlocking device obtains the turnout position, it ensures that the CBTC train can pass through the turnout section without degradation of operation.

[0022] As a preferred technical solution, the application method of the TACS system is specifically as follows:

[0023] When any point on the turnout position path is faulty as detected by the target controller, the redundant acquisition device sends the redundantly acquired turnout position information to the trackside resource manager. After the trackside resource manager obtains the turnout position, it ensures that the TACS train can pass through the turnout section without degradation of operation.

[0024] As a preferred technical solution, the application method of the SATC system is specifically as follows:

[0025] Use the redundant acquisition device to collect the turnout position, which is independent of the existing signal system, and send the turnout position to the vehicle-mounted device or the trackside electronic unit to ensure that the SATC train can pass through the turnout section without degradation of operation.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1) The present invention provides redundant node acquisition of the switch machine opener, realizing that a single-path device failure does not affect the system operation, that is, "no degradation in case of failure";

[0028] 2) The present invention realizes a solution where the power supply - acquisition - communication path is independent of the existing signal system, and can communicate with the devices of the existing signal system, improving the redundancy and availability of the existing signal system;

[0029] 3) The present invention realizes communication interfaces with devices of different signal systems, meets the requirements of different signal systems for obtaining turnout positions, and has the potential for popularization;

[0030] 4) The present invention reduces the impact of switch machine status acquisition failures and improves the operation efficiency and safety of the entire rail transit network. Brief Description of the Drawings

[0031] Figure 1 This is a schematic structural diagram of the turnout position redundant acquisition device of the present invention;

[0032] Fig. 2(a) is a schematic diagram of the nodes of the original switch machine automatic switch;

[0033] Fig. 2(b) is a schematic diagram of the nodes of the switch machine automatic switch of the present invention;

[0034] Figure 3 This is a schematic diagram of the trackside intelligent target controller TIOC of the present invention;

[0035] Figure 4 This is a specific connection schematic diagram of the trackside intelligent target controller TIOC and the switch machine automatic switch of the present invention;

[0036] Figure 5 This is a schematic diagram of the present invention for the CBTC system;

[0037] Figure 6 This is a schematic diagram of the present invention for the TACS system;

[0038] Figure 7 This is a schematic diagram of the present invention for the SATC system;

[0039] Figure 8 This is the working principle diagram of the present invention. Detailed Description of the Preferred Embodiments

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] As Figure 1 shown, a turnout position redundant acquisition device of the present invention includes a power supply unit PSU, a switch machine automatic switch, and a communication unit CU. The power supply unit PSU is connected to the switch machine automatic switch. The communication unit CU is respectively connected to on-vehicle equipment, a trackside resource manager, a trackside electronic unit, and an existing turnout acquisition device. The redundant acquisition device further includes a trackside intelligent target controller TIOC connected to the communication unit CU. The switch machine automatic switch includes four groups of nodes, three of which are connected to the existing turnout acquisition device, and the remaining one group of nodes is connected to the trackside intelligent target controller TIOC, so as to realize the redundant acquisition of the turnout position of trackside signal equipment.

[0042] Among them, the power supply unit PSU provides 24VDC power supply for the collection circuit of the switch machine's automatic switch;

[0043] As shown in Figure 2, the new type of automatic switch of the switch machine is changed from the three sets of contacts of the existing automatic switch to an automatic switch with four sets of newly designed contacts. Among them, three sets of nodes are connected to the existing turnout collection equipment, and the remaining set of nodes is connected to the trackside intelligent target controller (TIOC), so as to realize redundant collection of the turnout position of the trackside signal equipment. The remaining set of nodes of the switch machine's automatic switch includes nodes 17-18 and 37-38 for collecting the turnout's normal position, and nodes 27-28 and 47-48 for collecting the turnout's reverse position. Through hardware design, the internal installation space of the existing switch machine can be satisfied.

[0044] As Figure 3 shown, the trackside intelligent target controller TIOC is a new type of turnout position collection target controller, which can collect 2 turnout normal position indication lines and 2 turnout reverse position indication lines to realize turnout position collection.

[0045] As Figure 4 shown, the new type of automatic switch with 4 sets of contacts has one more set of contacts than the existing automatic switch. At the same time, 6 new sets of terminal blocks are added to the existing 14 sets of terminal blocks for the design of the turnout collection circuit;

[0046] The existing signal equipment control and collection of the switch machine circuit still uses the existing five-wire switch machine circuit, and the existing 14 sets of terminal blocks are used for internal and external wiring, and the existing signal equipment controls the switch machine;

[0047] The trackside intelligent target controller TIOC performs redundant collection of the turnout position through the newly added 6 sets of terminal blocks. Among them, terminals 19 / 20 are used as the positive and negative terminals for 24CV power supply, terminals 15 / 16 are used as the positive and negative terminals for the normal position indication state, and the normal position indication loop is connected through nodes 17-18 / 37-38. The TIOC connector terminals c26 / e26 collect the normal position indication state; 17 / 18 are used as the positive and negative terminals for the reverse position indication state, and the reverse position indication loop is connected through nodes 27-28 / 47-48. The TIOC connector terminals c30 / e30 collect the reverse position indication state, realizing the TIOC redundant collection of the turnout position state.

[0048] The existing signal system's turnout collection equipment still uses the following automatic switch nodes according to the original design scheme:

[0049] 11-12, 13-14, 15-16;

[0050] 23-24, 25-26;

[0051] 33-34, 35-36;

[0052] 41 - 42, 43 - 44, 45 - 46.

[0053] The trackside intelligent target controller TIOC is connected to the new type of automatic switch of the switch machine, powered by 24VDC. The 17 - 18 and 37 - 38 nodes of the automatic switch are used to collect the turnout positioning position, and the 27 - 28 and 47 - 48 nodes are used to collect the turnout reverse position, realizing redundant collection of the turnout position.

[0054] The communication unit CU is responsible for the information communication between the trackside intelligent target controller TIOC and other devices, including wired communication, wireless communication and other communication methods, and sends the redundantly collected turnout position to the signal system interlocking device, trackside resource manager, signal system on - vehicle device, trackside electronic unit device, etc.

[0055] The present invention can be used in signal systems and operation modes of different systems. After the interlocking collects the turnout fault, this device will send the turnout position to different signal devices to ensure the operation of signal systems of different systems.

[0056] The following takes the basic configurations of the CBTC system, TACS system, and SATC system as examples for illustration, and the relevant principles and logics are also applicable to systems with other configurations.

[0057] As Figure 5 shown, in the CBTC system, when any point on the turnout position path collected by the interlocking system fails and the interlocking cannot obtain the turnout position status, the ZC will not be able to send a movement authorization to the train, and the train cannot pass through the turnout section; this device will send the redundantly collected turnout position information to the interlocking device through network communication. After the interlocking device obtains the turnout position, it can ensure that the operation of CBTC trains does not degrade and the trains can pass through the turnout section.

[0058] As Figure 6 shown, in the TACS system, when any point on the turnout position path collected by the target controller fails and the trackside resource manager cannot obtain the turnout position status, it will not be able to allocate the turnout position and turnout resources to the train, and the train cannot pass through the turnout section; this device will send the redundantly collected turnout position information to the trackside resource manager through network communication. After the trackside resource manager obtains the turnout position, it can ensure that the operation of TACS trains does not degrade and the trains can pass through the turnout section.

[0059] As Figure 7 shown, in the SATC system, when using this device to collect the turnout position, it can be independent of the existing signal system and send the turnout position to the on - vehicle system or trackside electronic unit to ensure that the operation of SATC trains does not degrade and pass through the turnout section.

[0060] As Figure 8 shown, the working principle of the present invention includes the following steps:

[0061] 1) The new type of automatic switch machine provides redundant acquisition nodes for the signal system interlocking equipment and the trackside intelligent object controller TIOC at the same time;

[0062] 2) The power supply unit PSU supplies power to the nodes of the new type of automatic switch machine. The trackside intelligent object controller TIOC realizes the function of collecting the turnout position by using nodes 17-18, 37-38, 27-28, and 47-48 through the acquisition circuit;

[0063] 3) The communication unit CU sends the collected turnout position to the signal system interlocking equipment, the trackside resource manager, the signal system on-vehicle equipment, the trackside electronic unit equipment, etc.

[0064] As mentioned above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art in the technical field disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A turnout position redundant acquisition device, comprising a power supply unit (PSU), a point machine automatic switch, and a communication unit (CU), wherein the power supply unit (PSU) is connected to the point machine automatic switch, and the communication unit (CU) is respectively connected to on-vehicle equipment, a trackside resource manager, a trackside electronic unit, and an existing turnout acquisition device, characterized in that The redundant acquisition device further includes a trackside intelligent object controller (TIOC) connected to the communication unit (CU). The switch machine automatic switch includes four groups of nodes, three of which are connected to the existing turnout acquisition equipment, and the remaining one group of nodes is connected to the trackside intelligent object controller (TIOC), so as to realize redundant acquisition of the turnout position of trackside signal equipment.

2. The redundant acquisition device for switch position according to claim 1, wherein The power supply unit (PSU) is connected to the switch machine automatic switch through a 24VDC power supply interface.

3. The redundant acquisition device for turnout position according to claim 1, wherein The remaining one group of nodes of the switch machine automatic switch includes nodes 17-18 and 37-38 for turnout normal position acquisition, and nodes 27-28 and 47-48 for turnout reverse position acquisition.

4. The redundant acquisition device for turnout position according to claim 3, wherein The trackside intelligent object controller (TIOC) newly adds six groups of terminals for redundant acquisition of turnout positions.

5. The redundant acquisition device for turnout position according to claim 4, characterized in that The six groups of terminals include positive and negative terminals for DC power supply, positive and negative terminals for turnout normal position indication status, and positive and negative terminals for turnout reverse position indication status.

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

7. The redundant acquisition device for turnout position according to claim 5, wherein, The positive and negative terminals of the turnout reverse position indication status are respectively connected to nodes 27-28 and 47-48.

8. The redundant acquisition device for turnout position according to claim 1, wherein The communication unit (CU) is connected to on-vehicle equipment through wireless communication, and the communication unit (CU) is respectively connected to the trackside resource manager and the trackside electronic unit through wired communication.

9. An application method of the turnout position redundancy acquisition device described in claim 1, characterized in that, It includes the application method of the CBTC system, the application method of the TACS system, and the application method of the SATC system.

10. The application method according to claim 9, characterized in that, The application method of the CBTC system is specifically as follows: When any point on the turnout position path collected by the interlocking system fails, the redundant acquisition device sends the redundantly acquired turnout position information to the interlocking system. After the interlocking device obtains the turnout position, it ensures that the CBTC train can run through the turnout section without degradation.

11. The application method according to claim 9, wherein The application method of the TACS system is specifically as follows: When any point on the turnout position path collected by the object controller fails, the redundant acquisition device sends the redundantly acquired turnout position information to the trackside resource manager. After the trackside resource manager obtains the turnout position, it ensures that the TACS train can run through the turnout section without degradation.

12. The application method according to claim 9, wherein, The application method of the SATC system is specifically as follows: Use the redundant acquisition device to collect the turnout position, which is independent of the existing signal system, and send the turnout position to the on-vehicle equipment or the trackside electronic unit, ensuring that the SATC train can run through the turnout section without degradation.

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