Drive circuit for disaster monitoring system and remote drive emergency power supply device

Abstract

The utility model provides a drive circuit for a disaster monitoring system and a remote drive emergency power supply device, and the drive circuit comprises an uplink drive relay SXQDJ, a downlink drive relay XXQDJ, a stop drive relay TZJ, a diode D1, a diode D2, etc. The uplink driving relay SXQDJ and the downlink driving relay XXQDJ are connected between an existing disaster monitoring system and a train control power supply, and are used for driving an uplink foreign matter invasion relay SYWJ or a downlink foreign matter invasion relay XYWJ on an existing train control center side to act; and the uplink driving relay SXQDJ, the downlink driving relay XXQDJ and the stop driving relay TZJ are also connected between the control power supply and the driving acquisition module. The remote driving emergency power supply device can achieve remote control, temporary traffic operation under extreme conditions is achieved, temporary running of a train is rapidly achieved under the conditions, and losses are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency power supplies, and specifically, to a drive circuit for a disaster monitoring system and a remote drive emergency power supply device. Background Art

[0002] The high-speed railway natural disaster and foreign object intrusion monitoring system (hereinafter referred to as the disaster monitoring system) is an important part of the railway information system. Monitoring the wind, rain, snow and foreign object intrusion on the over-railway road bridges along the high-speed railway is one of the technical support means and important basic equipment to ensure the safe and efficient operation of high-speed railway trains. The existing disaster monitoring system usually controls the upstream foreign object intrusion relay SYWJ or the downstream foreign object intrusion relay XYWJ on the side of the train control center through the relay circuit (including relays SFYJ, LWJ1, LWJ2, etc.) inside the base station monitoring unit. When the double-grid sensor is disconnected due to foreign object intrusion, the disaster monitoring system drives SYWJ or XYWJ to act to make the trains entering the relevant block sections stop automatically, as shown in the circuit within the dotted line box in the appendix. Figure 1 At this time, the dispatcher checks the on-site situation through video monitoring. At the same time, the relevant maintenance unit personnel immediately rush to the scene with spare parts. When there are no factors affecting train operation seen through video monitoring and the maintenance unit personnel arrive at the scene and feedback that there are no factors affecting train operation, the dispatcher performs a temporary train operation through the disaster monitoring terminal. If the operation is successful, the train can resume temporary operation, and the equipment failure is checked during the maintenance window, and the equipment is restored to the normal monitoring state.

[0003] It should be noted that during the actual operation process, especially in areas with frequent lightning disasters, when interference is introduced through the power supply system or communication system during extreme weather disasters and power disasters, it may cause the disaster monitoring system to lose contact and at the same time cause the train to stop automatically due to a red light band in the block section. In this case, the dispatcher cannot perform a temporary train operation, and the equipment must be restored after personnel arrive at the scene. This process usually takes 1 to 3 hours, and such problems occurring during normal train operation periods will bring immeasurable losses to train operation.

[0004] It should also be noted that the existing disaster monitoring system usually uses a hardware logic circuit to directly control the train, and the software does not participate in the judgment. Although this can ensure the purpose of train control when the double-grid sensor is disconnected, it also brings certain difficulties to the rapid disposal in case of failures. Since the monitoring circuit and the control circuit are both hardware logic circuits, once the disaster monitoring system fails, it will cause the disaster monitoring system to be unable to perform a temporary train operation. At this time, even if there are no factors affecting train operation seen through video monitoring and on-site inspection, it is necessary to wait for relevant personnel to arrive at the scene to restore the circuit before the train can resume operation. This process is time-consuming and laborious, and greatly affects the train operation efficiency.

[0005] Therefore, it is highly necessary to design a drive circuit adapted to the existing disaster monitoring system to provide a hardware basis for remote driving of temporary traffic operation.

[0006] To solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0007] The purpose of the present utility model is to address the deficiencies of the prior art, and thus provide a drive circuit for a disaster monitoring system and a remote drive emergency power supply device.

[0008] To achieve the above purpose, in the first aspect of the present utility model, there is provided a drive circuit for a disaster monitoring system, which includes an up-drive relay SXQDJ, a down-drive relay XXQDJ, a stop drive relay TZJ, a diode D1, a diode D2, a fuse FU1, a fuse FU2, a fuse FU7, and a fuse FU8. Among them,

[0009] One end of the first set of nodes of the up-drive relay SXQDJ is connected to the positive pole of the diode D1, and the negative pole of the diode D1 and one end of the second set of nodes of the up-drive relay SXQDJ are respectively used to connect both ends of the drive coil of the existing up-line foreign object intrusion relay SYWJ; the other end of the first set of nodes of the up-drive relay SXQDJ is connected to one end of the fuse FU1, and the other end of the fuse FU1 and the other end of the second set of nodes of the up-drive relay SXQDJ are respectively used to connect the output terminals of the train control power supply;

[0010] One end of the first set of nodes of the down-drive relay XXQDJ is connected to the positive pole of the diode D2, and the negative pole of the diode D2 and one end of the second set of nodes of the down-drive relay XXQDJ are respectively used to connect both ends of the drive coil of the existing down-line foreign object intrusion relay XYWJ; the other end of the first set of nodes of the down-drive relay XXQDJ is connected to one end of the fuse FU2, and the other end of the fuse FU2 and the other end of the second set of nodes of the down-drive relay XXQDJ are respectively used to connect the output terminals of the train control power supply;

[0011] One end of the third group of nodes of the upward driving relay SXQDJ is connected to the third terminal of the driving coil in the upward driving relay SXQDJ. The fourth terminal of the driving coil in the upward driving relay SXQDJ is connected to one end of the fuse FU8. The other end of the third group of nodes of the upward driving relay SXQDJ is respectively connected to one end of the first group of nodes of the stop driving relay TZJ and one end of the third group of nodes of the downward driving relay XXQDJ. The other end of the third group of nodes of the downward driving relay XXQDJ is connected to the third terminal of the driving coil in the downward driving relay XXQDJ. The fourth terminal of the driving coil in the downward driving relay XXQDJ is connected to one end of the fuse FU7. The other end of the fuse FU7, the other end of the fuse FU8 and the other end of the first group of nodes of the stop driving relay TZJ are used to be respectively connected to the output end of the control power supply.

[0012] The first terminal of the driving coil in the upward driving relay SXQDJ, the first terminal of the driving coil in the downward driving relay XXQDJ and the first terminal of the driving coil in the stop driving relay TZJ are used to be respectively connected to the DO pins of the driving acquisition module. The second terminal of the driving coil in the upward driving relay SXQDJ, the second terminal of the driving coil in the downward driving relay XXQDJ and the fourth terminal of the driving coil in the stop driving relay TZJ are used to be respectively connected to the output end of the control power supply.

[0013] One end of the fifth group of nodes of the upward driving relay SXQDJ, one end of the fifth group of nodes of the downward driving relay XXQDJ and one end of the fifth group of nodes of the stop driving relay TZJ are used to be respectively connected to the output end of the control power supply. The other end of the fifth group of nodes of the upward driving relay SXQDJ, the other end of the fifth group of nodes of the downward driving relay XXQDJ and the other end of the fifth group of nodes of the stop driving relay TZJ are used to be respectively connected to the DI pins of the driving acquisition module.

[0014] To achieve the above object, the second aspect of the present utility model provides a remote driving emergency power supply device, which includes a remote control terminal, a field host, a control power supply, a train control power supply and the above-mentioned driving circuit for the disaster monitoring system. The driving circuit for the disaster monitoring system is respectively connected to the field host, the control power supply and the train control power supply, and the field host is communicatively interconnected with the remote control terminal.

[0015] The beneficial effects of the present utility model are:

[0016] 1) The utility model provides a driving circuit for a disaster monitoring system, which mainly includes three relays: an upstream driving relay SXQDJ, a downstream driving relay XXQDJ, and a stop driving relay TZJ. The upstream driving relay SXQDJ and the downstream driving relay XXQDJ are connected between the existing disaster monitoring system and the train control power supply, providing a circuit hardware basis for driving the relay SYWJ or the relay XYWJ in the existing disaster monitoring system.

[0017] 2) The utility model also provides a remote driving emergency power supply device. The on-site host is connected to the upstream driving relay SXQDJ, the downstream driving relay XXQDJ, and the stop driving relay TZJ in the driving circuit of the disaster monitoring system, and is used to collect the states of these three relays and drive these three relays to act. Brief Description of the Drawings

[0018] Figure 1 is a schematic circuit diagram of the driving circuit for the disaster monitoring system of the utility model;

[0019] Figure 2 is a schematic structural diagram of the remote driving emergency power supply device of the utility model. Detailed Embodiments

[0020] The technical solutions of the utility model will be further described in detail below through specific embodiments.

[0021] The terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects (contacts), and do not have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, which is only a way of distinguishing objects with the same attributes when describing the embodiments of this application.

[0022] Embodiment 1

[0023] This embodiment gives a specific implementation manner of a driving circuit for a disaster monitoring system, as shown in the attached Figure 1 figure;

[0024] The driving circuit for the disaster monitoring system includes an upstream driving relay SXQDJ, a downstream driving relay XXQDJ, a stop driving relay TZJ, a diode D1, a diode D2, a fuse FU1, a fuse FU2, a fuse FU7, and a fuse FU8. Among them,

[0025] One end of the first group of nodes of the uplink drive relay SXQDJ is connected to the positive electrode of the diode D1, and the negative electrode of the diode D1 and one end of the second group of nodes of the uplink drive relay SXQDJ are respectively used to connect both ends of the drive coil of the existing uplink foreign object intrusion relay SYWJ; the other end of the first group of nodes of the uplink drive relay SXQDJ is connected to one end of the fuse FU1, and the other end of the fuse FU1 and the other end of the second group of nodes of the uplink drive relay SXQDJ are respectively used to connect the output terminals of the train control power supply;

[0026] One end of the first group of nodes of the downlink drive relay XXQDJ is connected to the positive electrode of the diode D2, and the negative electrode of the diode D2 and one end of the second group of nodes of the downlink drive relay XXQDJ are respectively used to connect both ends of the drive coil of the existing downlink foreign object intrusion relay XYWJ; the other end of the first group of nodes of the downlink drive relay XXQDJ is connected to one end of the fuse FU2, and the other end of the fuse FU2 and the other end of the second group of nodes of the downlink drive relay XXQDJ are respectively used to connect the output terminals of the train control power supply;

[0027] One end of the third group of nodes of the uplink drive relay SXQDJ is connected to the third terminal of the drive coil of the uplink drive relay SXQDJ, the fourth terminal of the drive coil of the uplink drive relay SXQDJ is connected to one end of the fuse FU8, and the other end of the third group of nodes of the uplink drive relay SXQDJ is respectively connected to one end of the first group of nodes of the stop drive relay TZJ and one end of the third group of nodes of the downlink drive relay XXQDJ; the other end of the third group of nodes of the downlink drive relay XXQDJ is connected to the third terminal of the drive coil of the downlink drive relay XXQDJ, and the fourth terminal of the drive coil of the downlink drive relay XXQDJ is connected to one end of the fuse FU7; the other end of the fuse FU7, the other end of the fuse FU8 and the other end of the first group of nodes of the stop drive relay TZJ are respectively used to connect the output terminals of the control power supply;

[0028] The first terminal of the drive coil of the uplink drive relay SXQDJ, the first terminal of the drive coil of the downlink drive relay XXQDJ and the first terminal of the drive coil of the stop drive relay TZJ are respectively used to connect the DO pins of the drive acquisition module; the second terminal of the drive coil of the uplink drive relay SXQDJ, the second terminal of the drive coil of the downlink drive relay XXQDJ and the fourth terminal of the drive coil of the stop drive relay TZJ are respectively used to connect the output terminals of the control power supply;

[0029] One end of the fifth group of nodes of the upward driving relay SXQDJ, one end of the fifth group of nodes of the downward driving relay XXQDJ, and one end of the fifth group of nodes of the stop driving relay TZJ are used to be respectively connected to the output end of the control power supply; the other ends of the fifth group of nodes of the upward driving relay SXQDJ, the other ends of the fifth group of nodes of the downward driving relay XXQDJ, and the other ends of the fifth group of nodes of the stop driving relay TZJ are used to be respectively connected to the DI pins of the driving acquisition module.

[0030] It should be noted that the driving circuit for the disaster monitoring system mainly includes three relays, namely the upward driving relay SXQDJ, the downward driving relay XXQDJ, and the stop driving relay TZJ. The upward driving relay SXQDJ and the downward driving relay XXQDJ are connected between the existing disaster monitoring system and the train control power supply, providing a circuit hardware basis for driving the upward foreign object intrusion relay SYWJ or the downward foreign object intrusion relay XYWJ on the side wall of the existing train control center.

[0031] It should also be noted that the stop driving relay TZJ is connected between the control power supply and the driving coils of the upward driving relay SXQDJ and the downward driving relay XXQDJ, providing a circuit hardware basis for stopping the driving of the upward foreign object intrusion relay SYWJ or the downward foreign object intrusion relay XYWJ on the side wall of the existing train control center.

[0032] It should also be noted that the diodes D1 and D2 in the driving circuit for the disaster monitoring system are arranged at the forefront connected to the existing disaster monitoring system, forming an anti-reverse connection, anti-short circuit, and anti-voltage backflow circuit.

[0033] In some embodiments, the upward driving relay SXQDJ, the downward driving relay XXQDJ, and the stop driving relay TZJ are all safety-type relays, with high reliability.

[0034] Embodiment 2

[0035] Based on Embodiment 1, this embodiment gives a specific implementation manner of a remote driving emergency power supply device, as shown in the appendix Figure 2 as follows;

[0036] The remote driving emergency power supply device includes a remote control terminal, a field host, a control power supply, a train control power supply, and the driving circuit for the disaster monitoring system in Embodiment 1;

[0037] The driving circuit for the disaster monitoring system is respectively connected to the field host, the control power supply, and the train control power supply, and the field host is communicatively interconnected with the remote control terminal.

[0038] In some embodiments, the on-site host includes a main control module and a drive acquisition module connected to the main control module. The main control module includes a controller and a communication circuit connected to the controller. The drive acquisition module includes a relay status acquisition circuit and a relay drive circuit.

[0039] Among them, the specific circuit structures of the relay status acquisition circuit and the relay drive circuit are prior art and will not be elaborated here. The controller can use an STM32 series single-chip microcomputer or other control chips that can implement the above functions. The communication circuit is used for communication and interconnection with a remote control terminal, and an RS232 communication circuit or other communication modules that can implement the above functions can be adopted.

[0040] It should be noted that the control power supply provides working power for the drive coils of each relay in the drive circuit of the disaster monitoring system. The train control power supply is a power supply used to drive the action of the upstream foreign object intrusion relay SYWJ or the downstream foreign object intrusion relay XYWJ on the train control center side. The control power supply and the train control power supply are two independently set and independently operating power supplies with high safety and reliability, and the model can be ZG2-42 / 0.5.

[0041] It should also be noted that the remote control terminal (such as a desktop computer, a tablet computer, etc.) communicates with the on-site host through a transmission channel provided by a third party; therefore, the failure of the on-site host or the network interruption in the remote drive emergency power supply device will not cause the failure of the existing disaster monitoring system.

[0042] It should also be noted that when a device failure occurs inside the cabinet of the existing disaster monitoring system, resulting in a train control red band, the duty officer can confirm on the terminal software of the remote control terminal that the red band is caused by a device failure. At this time, with approval, the duty officer can immediately issue a control instruction to the on-site host on the remote control terminal (or called the emergency terminal) by quickly pressing an operation, so as to remotely drive the upstream drive relay SXQDJ or the downstream drive relay XXQDJ to act, and supply power to the drive coils of the upstream foreign object intrusion relay SYWJ or the downstream foreign object intrusion relay XYWJ on the train control center side, thereby eliminating the red band, saving the repair time, reducing the time of blocked trains, providing guarantee for train operation safety, and providing support for train operation efficiency.

[0043] It should also be noted that in the normal state, the first group of nodes and the second group of nodes of the upstream drive relay SXQDJ in the drive circuit of the disaster monitoring system are disconnected, and the first group of nodes and the second group of nodes of the downstream drive relay XXQDJ are disconnected. At this time, the drive circuit of the disaster monitoring system is completely disconnected from the existing disaster monitoring system, so the two do not affect each other, and any failure of the remote drive emergency power supply device will not affect the existing system.

[0044] It should also be noted that the drive circuit of the disaster monitoring system has a drive self-locking function and is in a non-operating state under normal conditions. When the main controller of the on-site host receives the drive instruction sent by the remote control terminal, it outputs a drive voltage to the coils of the upper and lower drive relays (1, 2) through the relay drive circuit in the drive acquisition module. At this time, the upper and lower drive relays are pulled up, and the front contact of the third set of nodes is conducted. The control power supply forms a loop with the coils of the upper and lower drive relays (3, 4) through the third set of nodes of the upper and lower drive relays. At this time, the on-site host can stop driving, and the continuous pulling up of the upper and lower drive relays is driven by the control power supply, completing the self-locking control and improving the reliability and stability of the device.

[0045] In a specific embodiment, the drive process is exemplified as follows:

[0046] When the command of "driving the upper foreign object intrusion relay SYWJ" is executed, the relay drive circuit in the on-site host drives the first set of coils of the upper drive relay SXQDJ for a certain period of time (3 s); the control power supply drives the second set of coils of SXQDJ through the lower node of the stop drive relay TZJ and the upper node of the upper drive relay SXQDJ, and the train control power supply drives the upper foreign object intrusion relay SYWJ on the train control center side through the upper node of the upper drive relay SXQDJ.

[0047] When the command of "stopping driving" is executed, the relay drive circuit in the on-site host drives the stop drive relay TZJ to be pulled up for a certain period of time (3 s); the circuit of the control power supply passing through the lower node of the stop drive relay TZJ and the upper nodes of the third sets of the upper and lower drive relays is disconnected, and the coils of the lower drive relay SXQDJ (3, 4) lose power, and the lower drive relay SXQDJ drops. In this way, the first and second sets of nodes of the lower drive relay SXQDJ will be disconnected. Due to the existence of the self-locking circuit of the upper and lower drive circuits, when the stop drive relay TZJ drops at this time, the circuit will not be conducted, and further the power supply to the upper and lower foreign object intrusion relays on the train control center side remains disconnected, achieving the purpose of stopping driving.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific embodiments of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered by the scope of the technical solutions claimed in the present invention.

Claims

1. A drive circuit for a disaster monitoring system, characterized in that: It includes an up - driving relay SXQDJ, a down - driving relay XXQDJ, a stop - driving relay TZJ, a diode D1, a diode D2, a fuse FU1, a fuse FU2, a fuse FU7, and a fuse FU8. Among them, One end of the first - group node of the up - driving relay SXQDJ is connected to the positive pole of the diode D1, and the negative pole of the diode D1 and one end of the second - group node of the up - driving relay SXQDJ are respectively used to connect both ends of the driving coil of the existing up - line foreign object intrusion relay SYWJ; the other end of the first - group node of the up - driving relay SXQDJ is connected to one end of the fuse FU1, and the other end of the fuse FU1 and the other end of the second - group node of the up - driving relay SXQDJ are respectively used to connect the output terminals of the train control power supply; One end of the first - group node of the down - driving relay XXQDJ is connected to the positive pole of the diode D2, and the negative pole of the diode D2 and one end of the second - group node of the down - driving relay XXQDJ are respectively used to connect both ends of the driving coil of the existing down - line foreign object intrusion relay XYWJ; the other end of the first - group node of the down - driving relay XXQDJ is connected to one end of the fuse FU2, and the other end of the fuse FU2 and the other end of the second - group node of the down - driving relay XXQDJ are respectively used to connect the output terminals of the train control power supply; One end of the third - group node of the up - driving relay SXQDJ is connected to the third terminal of the driving coil of the up - driving relay SXQDJ, the fourth terminal of the driving coil of the up - driving relay SXQDJ is connected to one end of the fuse FU8, and the other end of the third - group node of the up - driving relay SXQDJ is respectively connected to one end of the first - group node of the stop - driving relay TZJ and one end of the third - group node of the down - driving relay XXQDJ; the other end of the third - group node of the down - driving relay XXQDJ is connected to the third terminal of the driving coil of the down - driving relay XXQDJ, and the fourth terminal of the driving coil of the down - driving relay XXQDJ is connected to one end of the fuse FU7; the other end of the fuse FU7, the other end of the fuse FU8, and the other end of the first - group node of the stop - driving relay TZJ are respectively used to connect the output terminals of the control power supply; The first terminal of the driving coil of the up - driving relay SXQDJ, the first terminal of the driving coil of the down - driving relay XXQDJ, and the first terminal of the driving coil of the stop - driving relay TZJ are respectively used to connect the DO pins of the driving acquisition module; the second terminal of the driving coil of the up - driving relay SXQDJ, the second terminal of the driving coil of the down - driving relay XXQDJ, and the fourth terminal of the driving coil of the stop - driving relay TZJ are respectively used to connect the output terminals of the control power supply; One end of the fifth group of nodes of the upward driving relay SXQDJ, one end of the fifth group of nodes of the downward driving relay XXQDJ, and one end of the fifth group of nodes of the stop driving relay TZJ are used to connect to the output end of the control power supply respectively; the other ends of the fifth group of nodes of the upward driving relay SXQDJ, the other ends of the fifth group of nodes of the downward driving relay XXQDJ, and the other ends of the fifth group of nodes of the stop driving relay TZJ are used to connect to the DI pins of the driving acquisition module respectively.

2. The drive circuit for a disaster monitoring system according to claim 1, characterized in that: The upward driving relay SXQDJ, the downward driving relay XXQDJ, and the stop driving relay TZJ are all safety relays.

3. A remote drive emergency power supply device, characterized in that: It includes a remote control terminal, a field host, a control power supply, a train control power supply, and the driving circuit for the disaster monitoring system according to claim 1 or 2; The driving circuit for the disaster monitoring system is respectively connected to the field host, the control power supply, and the train control power supply, and the field host is communicatively interconnected with the remote control terminal.

4. The remote drive emergency power supply device according to claim 3, wherein: The field host includes a main control module and a driving acquisition module connected to the main control module. The main control module includes a controller and a communication circuit connected to the controller. The driving acquisition module includes a relay state acquisition circuit and a relay driving circuit.

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