Optical fiber mutual transmission measurement and control device and rail transit cross-station locking system

Abstract

The utility model relates to the technical field of optical fiber sensing, and discloses an optical fiber mutual transmission measurement and control device and a rail transit cross-station locking system, which are used for improving the efficiency of network communication in rail transit cross-station locking. The optical fiber mutual transmission measurement and control device comprises a switching value input module, an optical fiber mutual transmission module, a control module and a switching value output module. The switching value input module is connected with an isolation grounding device of the station and is used for acquiring the state of a disconnecting link of the isolation grounding device; the optical fiber mutual transmission module is in communication connection with an optical fiber mutual transmission measurement and control device of an adjacent station and is used for receiving a disconnecting link state of an isolation grounding device of the adjacent station; and the control module is respectively connected with the switching value input module, the switching value output module and the optical fiber mutual transmission module.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber sensing, in particular to an optical fiber mutual transmission measurement and control device and a rail transit cross-station locking system. Background Art

[0002] Currently, there are two traditional cross-station interlocking methods: one is hard-wired interlocking, and the other is communication machine mutual signal interlocking. Among them, hard-wired interlocking requires a large number of control cables for long-distance connection. Not only is the engineering workload large and it is easily affected by environmental factors, resulting in reduced signal reliability, but the wiring is also complex and difficult to maintain, and a large number of cable changes are required during system upgrades. Communication machine mutual signal interlocking is highly dependent on the stability and reliability of network communication equipment. Once the network or communication machine fails, it will directly affect the functional realization of the cross-station interlocking. At the same time, the large number of device connections increases the complexity of the system and potential failure points, thereby greatly increasing the possibility of delay or interruption of network communication, which in turn leads to low network communication efficiency. Utility Model Content

[0003] The main purpose of the utility model is to solve the technical problem of low network communication efficiency in rail transit cross-station locking.

[0004] The first aspect of the present invention provides an optical fiber mutual transmission measurement and control device, comprising: a switch input module, an optical fiber mutual transmission module, a control module and a switch output module; the switch input module is connected to the isolation grounding device of the current site, and is used to collect the switch status of the isolation grounding device; the optical fiber mutual transmission module is communicatively connected to the optical fiber mutual transmission measurement and control device of the adjacent site, and is used to receive the switch status of the isolation grounding device of the adjacent site; the control module is respectively connected to the switch input module, the switch output module and the optical fiber mutual transmission module, and the control module can transmit control information to the isolation grounding device of the current site through the switch output module.

[0005] In a feasible implementation manner, the optical fiber mutual transmission measurement and control device further includes: a remote signal transmission module for communicating with the optoelectronic switch network in the isolation grounding device through a network communication interface to upload control information to the system background.

[0006] In a feasible implementation manner, the optical fiber mutual transmission measurement and control device further includes: a fault diagnosis module, which is communicatively connected to the optical fiber mutual transmission measurement and control device of an adjacent site and is used to monitor the communication status of the optical fiber mutual transmission measurement and control device of the adjacent site.

[0007] In a feasible embodiment, the optical fiber mutual transmission module includes a first optical port and a second optical port, the first optical port is connected to the optical fiber mutual transmission measurement and control device of the left adjacent site, and the second optical port is connected to the optical fiber mutual transmission measurement and control device of the right adjacent site.

[0008] In a feasible embodiment, the switch input module and the switch output module respectively include multiple control channels, the switch input module receives the corresponding knife switch status through the corresponding control channel, and the switch output module outputs the corresponding control instruction through the corresponding control channel to realize different operations on the knife switch.

[0009] The second aspect of the present invention provides a rail transit cross-station locking system, including at least two traction stations, each traction station including at least one set of optical fiber mutual transmission measurement and control device and isolation grounding device, the traction stations are communicatively connected, and the optical fiber mutual transmission measurement and control device and the isolation grounding device are communicatively connected.

[0010] In a feasible implementation manner, the optical fiber mutual transmission measurement and control devices corresponding to the traction sites are connected via optical fibers, and the optical fiber mutual transmission measurement and control devices and the isolation grounding device are connected via hard wiring.

[0011] In a feasible implementation manner, the isolation grounding device includes a grounding switch and an isolation switch, and the grounding switch and the isolation switch are respectively communicatively connected to the optical fiber mutual transmission measurement and control device.

[0012] In a feasible implementation manner, the grounding switch and the isolating switch are both provided with switching output contacts, and the switching output contacts are designed to be connected in series to the control circuit of the corresponding switch motor.

[0013] In a feasible implementation manner, the optical fiber mutual transmission measurement and control device is connected to the switch output contact through the hard wiring.

[0014] In the technical solution provided by the present invention, the switch input module is connected to the isolation grounding device of the site and is used to collect the status of the knife switch of the isolation grounding device; the optical fiber mutual transmission module is communicatively connected to the optical fiber mutual transmission measurement and control device of the adjacent site and receives the status of the knife switch of the isolation grounding device of the adjacent site; the control module is respectively connected to the switch input module, the switch output module and the optical fiber mutual transmission module. In the embodiment of the present invention, the optical fiber mutual transmission measurement and control device realizes the real-time collection of the status of the knife switch of the site isolation grounding device and the direct mutual transmission of information of the adjacent site by integrating the switch input, optical fiber mutual transmission, control and switch output modules, and controls the opening of the corresponding contacts when specific opening conditions are met, thereby realizing precise locking control and effectively improving the efficiency and reliability of network communication in the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of an embodiment of an optical fiber mutual transmission measurement and control device in an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of another embodiment of an optical fiber mutual transmission measurement and control device in an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of an embodiment of a rail transit cross-station locking system in an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of another embodiment of a rail transit cross-station locking system in an embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of an embodiment of an isolation grounding device in an embodiment of the present utility model. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0021] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0023] This utility model proposes a fiber optic mutual transmission measurement and control device, please refer to Figure 1In the first embodiment of the present utility model, the optical fiber mutual transmission measurement and control device 10 includes a switch input module 101, an optical fiber mutual transmission module 102, a control module 103 and a switch output module 104.

[0024] The switch input module 101 is connected to the isolation grounding device of this site and is used to collect the switch status of the isolation grounding device; the optical fiber mutual transmission module 102 is communicatively connected to the optical fiber mutual transmission measurement and control device of the adjacent site and receives the switch status of the isolation grounding device of the adjacent site; the control module 103 is respectively connected to the switch input module 101, the optical fiber mutual transmission module 102 and the switch output module 104, and the control module 103 can transmit the control information to the isolation grounding device of this site through the switch output module 104; when the switch status of this site and the switch status of the adjacent site meet the opening conditions, the corresponding contacts are opened by controlling the switch output module to realize locking control.

[0025] After collecting the status of the knife switches at this site and the adjacent sites, the optical fiber mutual transmission measurement and control device 10 will perform comprehensive analysis and processing according to the preset logic judgment program. When the logic judgment program determines that the target knife switch needs to be locked, the control module 103 controls the opening of the corresponding contacts of the switch output module 104. These contacts are connected in series to the motor circuit of the knife switch in the isolation grounding device, thereby realizing the locking control of the knife switch.

[0026] The optical fiber mutual transmission measurement and control device of the utility model realizes the real-time collection of the status of the site isolation grounding device knife switch and the direct mutual transmission of adjacent site information by integrating switch input, optical fiber mutual transmission, control and switch output modules. It can control the opening of the corresponding contacts when specific opening conditions are met, realize precise locking control, and effectively improve the efficiency and reliability of network communication.

[0027] This utility model also proposes another optical fiber mutual transmission measurement and control device, please refer to Figure 2 In the second embodiment of the present utility model, the optical fiber mutual transmission measurement and control device 20 includes a switch input module 201, an optical fiber mutual transmission module 202, a control module 203, a switch output module 204, a remote signal transmission module 205 and a fault diagnosis module 206.

[0028] Please refer to Figure 3 The switch input module 201 includes multiple control channels. The switch input module is connected to the isolation grounding device of this site through the multiple control channels to obtain different status information of the knife switch in the isolation grounding device, thereby obtaining the corresponding knife switch status.

[0029] The optical fiber mutual transmission module 202 is communicatively connected to the optical fiber measurement and control device of the adjacent site through optical fiber. The optical fiber mutual transmission module includes a first optical port and a second optical port. The first optical port is connected to the optical fiber mutual transmission measurement and control device of the left adjacent site, and the second optical port is connected to the optical fiber mutual transmission measurement and control device of the right adjacent site. The knife switch status of the isolation grounding device of the left adjacent site is received through the first optical port, and the knife switch status of the isolation connection device of the right adjacent site is received through the second optical port.

[0030] The control module 203 is connected to the switch input module 201, the optical fiber mutual transmission module 202 and the switch output module 204 respectively, and is used to receive the switch status of the local site and the switch status of the adjacent site, and judge whether the switch status of the local site and the switch status of the adjacent site meet the opening conditions. If it is determined that the switch status of the local site and the switch status of the adjacent site meet the opening conditions, the corresponding contacts are opened by controlling the switch output module to transmit the control information to the isolation grounding device of the local site, thereby realizing locking control.

[0031] The switch output module 204 includes a plurality of control channels, which are connected to the isolation grounding device of this site through the plurality of control channels. Each control channel is equipped with a corresponding contact. These contacts serve as the output end of the control signal and can accurately execute various operation instructions for the knife switch. Specifically, when the optical fiber mutual transmission measurement and control device 20 receives an instruction from the internal logic judgment program and needs to perform a specific operation on the target knife switch, it will activate the corresponding contact through the corresponding control channel. This contact will then be connected in series to the motor circuit of the knife switch to realize the opening, closing or maintaining the current state of the knife switch. Since each control channel is designed independently and each channel corresponds to a contact, the switch output module can process the operation requests of multiple knife switches at the same time without interfering with each other. This design not only improves the flexibility of operation, but also ensures the accuracy and reliability of each operation instruction.

[0032] The remote signal sending module 205 communicates with the optoelectronic switch and the control module 203 in the isolation grounding device through the network communication interface, organizes the received switch status signal and the executed opening operation information into a format suitable for network transmission, and sends it to the system background through the network communication interface.

[0033] The fault diagnosis module 206 is respectively connected to the control module 203 and the optical fiber mutual transmission measurement and control device of the adjacent site, and is used to monitor the communication status of the optical fiber mutual transmission measurement and control device of the adjacent site. When a communication interruption is detected, a monitoring result is generated and sent to the control module 203. The control module 203 receives the monitoring result and controls the isolation grounding device to be locked through the switch output module 204.

[0034] The optical fiber mutual transmission measurement and control device of the embodiment of the utility model obtains the status of the knife switch of the local site through the switch input module, communicates with the optical fiber measurement and control device of the adjacent site through the optical fiber mutual transmission module, and realizes the mutual transmission of the knife switch status. The control module determines whether the opening conditions are met according to the knife switch status of the local site and the adjacent site, and realizes locking control through the switch output module, thereby improving the efficiency and reliability of network communication. The remote signal transmission module can upload the control information to the system background for easy monitoring and management. The fault diagnosis module can monitor the communication status of the switch output module, discover communication faults in time and take corresponding locking measures, thereby improving the efficiency and reliability of network communication.

[0035] The utility model also proposes a rail transit cross-station locking system, such as Figure 3 As shown, in the third embodiment of the present invention, the rail transit cross-station locking system 30 includes at least two upper traction stations 301, each traction station includes at least one set of optical fiber mutual transmission measurement and control devices 3011 and isolation grounding devices 3012, the traction stations 301 are connected by optical fibers, and the optical fiber mutual transmission measurement and control devices 3011 and the isolation grounding devices 3012 are communicatively connected, wherein the optical fiber mutual transmission measurement and control device 3011 is the optical fiber mutual transmission measurement and control device in the first embodiment or the second embodiment.

[0036] Further, such as Figure 4 As shown, each traction station 301 can be provided with two sets of optical fiber mutual transmission measurement and control devices 3011 and isolation grounding devices 3012 for up and down lines. The rail transit system is usually designed for bidirectional operation. The up line and the down line respectively carry trains traveling in different directions. The configuration of the up and down sets of devices enables the system to handle the operation requirements of up and down trains at the same time, thereby improving transportation efficiency. The up line and the down line are usually physically separated, or distinguished by different tracks. This design ensures that the up and down trains do not interfere with each other during operation, thereby improving the safety and stability of the system.

[0037] Furthermore, the optical fiber mutual transmission measurement and control devices 3011 corresponding to the traction site 301 are connected through optical fibers, and the optical fiber mutual transmission measurement and control devices 3011 and the isolation grounding device 3012 are connected through hard wiring, wherein the optical fiber includes a first optical fiber and a second optical fiber, and the optical fiber mutual transmission measurement and control device includes a first optical port and a second optical port, and the first optical port and the second optical port respectively include two interfaces, and are correspondingly connected to the first optical fiber and the second optical fiber, wherein the two interfaces of the first optical port are respectively connected to the optical fiber mutual transmission measurement and control device of the left adjacent site through the first optical fiber and the second optical fiber, and the two interfaces of the second optical port are respectively connected to the optical fiber mutual transmission measurement and control device of the right adjacent site through the first optical fiber and the second optical fiber, wherein the knife switch status of the isolation grounding device of the adjacent site is received through the first optical fiber, and the knife switch status of the isolation grounding device of this site is transmitted to the adjacent site through the second optical fiber.

[0038] Further, such as Figure 5 As shown, the isolation grounding device 3012 includes a grounding switch 30121 and an isolation switch 30122, and the grounding switch 30121 and the isolation switch 30122 are respectively communicated with the optical fiber mutual transmission measurement and control device 3011, and the grounding switch 30121 and the isolation switch 30122 are both provided with switch output contacts, and the switch output contacts are designed to be able to be connected in series to the control circuit of the corresponding switch motor, and the optical fiber mutual transmission measurement and control device is connected to the switch output contacts through hard wiring.

[0039] The grounding switch 30121 and the isolation switch 30122 in the isolation grounding device 3012 are both equipped with switch output contacts, which can communicate with the optical fiber mutual transmission measurement and control device 3011. These switch output contacts are connected in series to the control circuit of their respective switch motors. When the optical fiber mutual transmission measurement and control device 3011 issues a control instruction based on the collected switch status information and the preset logical judgment result, the instruction is directly transmitted to the corresponding switch output contact through hard wiring, thereby accurately controlling the start or stop of the switch motor, and realizing remote, accurate and safe control of the status of the grounding switch and the isolation switch.

[0040] In the embodiment of the present utility model, data is directly transmitted between the traction stations of the rail transit cross-station locking system through optical fiber, and hard wiring is used for data transmission between the optical fiber mutual transmission measurement and control device and the isolation grounding device. In addition, long-distance data transmission can be achieved through optical fiber, which improves the reliability of the system. By simplifying the lines and reducing the equipment, when the locking logic needs to be changed, it is only necessary to modify the device logic configuration, which effectively reduces the changes in hard wiring, thereby improving the safety and operation efficiency of the system.

[0041] The above are merely optional embodiments of the present application and do not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An optical fiber mutual transmission measurement and control device, characterized in that: The optical fiber mutual transmission measurement and control device includes: a switch value input module, an optical fiber mutual transmission module, a control module and a switch value output module; The switch input module is connected to the isolation grounding device of the site and is used to collect the switch status of the isolation grounding device; The optical fiber mutual transmission module is communicatively connected to the optical fiber mutual transmission measurement and control device of the adjacent site, and is used to receive the switch status of the isolation grounding device of the adjacent site; The control module is connected to the switch input module, the optical fiber mutual transmission module and the switch output module respectively, and the control module can transmit control information to the isolation grounding device of the site through the switch output module.

2. The optical fiber mutual transmission measurement and control device according to claim 1, characterized in that: The optical fiber mutual transmission measurement and control device also includes: The remote signal transmission module is used to communicate with the optoelectronic switch network in the isolation grounding device through the network communication interface and upload the control information to the system background.

3. The optical fiber mutual transmission measurement and control device according to claim 1, characterized in that: The optical fiber mutual transmission measurement and control device also includes: The fault diagnosis module is communicatively connected to the optical fiber mutual transmission measurement and control device of the adjacent site and is used to monitor the communication status of the optical fiber mutual transmission measurement and control device of the adjacent site.

4. The optical fiber mutual transmission measurement and control device according to claim 1, characterized in that: The optical fiber mutual transmission module includes a first optical port and a second optical port. The first optical port is connected to the optical fiber mutual transmission measurement and control device of the left adjacent site, and the second optical port is connected to the optical fiber mutual transmission measurement and control device of the right adjacent site.

5. The optical fiber mutual transmission measurement and control device according to claim 1, characterized in that: The switch value input module and the switch value output module respectively include a plurality of control channels.

6. A rail transit cross-station locking system, characterized in that: The system includes at least two traction sites, each traction site includes at least one set of optical fiber mutual transmission measurement and control device and isolation grounding device, the traction sites are communicatively connected, the optical fiber mutual transmission measurement and control device and the isolation grounding device are communicatively connected, and the optical fiber mutual transmission measurement and control device is the optical fiber mutual transmission measurement and control device described in any one of claims 1-5.

7. The rail transit cross-station locking system according to claim 6, characterized in that: The optical fiber mutual transmission measurement and control devices corresponding to the traction sites are connected via optical fibers, and the optical fiber mutual transmission measurement and control devices and the isolation grounding device are connected via hard wiring.

8. The rail transit cross-station locking system according to claim 7, characterized in that: The isolation grounding device includes a grounding switch and an isolation switch, and the grounding switch and the isolation switch are respectively communicatively connected to the optical fiber mutual transmission measurement and control device.

9. The rail transit cross-station locking system according to claim 8, characterized in that: The grounding knife switch and the isolating knife switch are both provided with a switching output contact, and the switching output contact is designed to be connected in series to the control circuit of the corresponding knife switch motor.

10. The rail transit cross-station locking system according to claim 9, characterized in that: The optical fiber mutual transmission measurement and control device is connected to the switch output contact through the hard wiring.

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