A power failure recovery circuit and its recovery method

Abstract

The application provides a power failure recovery circuit and a recovery method thereof, which comprises a power supply, a node one and a node two, the node one is connected with a positive pole of the power supply, the node two is connected with a negative pole of the power supply, a line one is arranged between the node one and the node two, a coil of a power failure supervision repeating relay with a time delay is arranged on the line one, the line one is connected with a line two in parallel, the line two is connected with a line three in parallel, the line three is connected with a line four in parallel, the line four is connected with a line five, and the line five is also connected with the line three. The application does not need to replace interlocking software, does not need to increase new cables and equipment outdoors during the reconstruction, does not need to perform on-line debugging of the motor car after the reconstruction, has a small influence range during the construction and reconstruction in use, is easy to manage, has low safety risk, and the double-end code sending circuit relates to track code sending safety. In addition, compared with large-scale replacement of control equipment software and increase of outdoor cables and equipment, the application has low investment.

Description

Technical Field

[0001] This invention belongs to the field of track circuit technology, and specifically relates to a fault power outage recovery circuit and its recovery method. Background Technology

[0002] High-speed railway station tracks generally use the ZPW-2000 integrated track circuit, and some tracks are constructed using a single section of track circuit. The ZPW-2000 track circuit transmitter can send codes to one end of the track, and the receiver receives the information from the rail at the other end of the track circuit, such as... Figure 1 As shown, the track circuit will simultaneously issue a code ahead of the train operation based on the conditions for interlocking route processing, and the direction of the code issuance will continue until the next route processing for this track is completed.

[0003] like Figure 2 As shown, train A, located on track 5, has its front end near signal S5 and can receive the HU code sent by the transmitter on this track; its rear end is near signal X5 and cannot receive the HU code sent by the transmitter on this track.

[0004] When the driver of train A changes the train's approach direction, placing the head end near signal X5 and the tail end near signal S5, the ground interlocking has not yet established a route for track 5. The track circuit for track 5 still sends information from the S5 signal side, and the head end of train A, located near signal X5, cannot receive the information from the track circuit of track 5. For example... Figure 3 As shown, at this time, the three track circuits of the adjacent tracks send UUS codes at the X3 signal side. In this case, the A train head end in 5G, which is close to the X5 side, may incorrectly receive the UUS codes sent by the three adjacent track circuits, causing related safety issues.

[0005] Based on existing technical solutions, this problem can be solved by using relay circuits to achieve the goal of tail-end code supplementation control for track trains, such as... Figure 4 As shown, the anti-interference relay FGRJ is controlled by the relay circuit logic. Normally, FGRJ is energized and pulled up, connecting the receiver for this section to the control circuit to perform track occupancy checks. When a train occupies the track and requires tail-end coding, FGRJ de-energizes and falls, connecting the transmitter used to send codes to the tail of the train to the circuit, while simultaneously disconnecting the receiver for this section from the circuit. The track relay GJ for this section remains in the fallen state.

[0006] Safety protection is required when the dual-end coding circuit of the track is powered off or when the equipment is powered on. To solve the problem of automatic safety protection at this time, it is necessary to provide a short recovery condition power supply after a certain delay each time the power is restored, so that after the FGRJ is energized, the receiver is connected to the track circuit to realize the track occupancy condition check.

[0007] Existing technical solutions exist for solving this problem by using computer interlocking equipment logic operations. After the computer interlocking system collects power outage and subsequent power restoration information, it provides short-term recovery conditions after a delay. However, existing technologies have the following drawbacks: (1) Modifying the computer interlocking method requires modifying the computer interlocking software and adding new logic operations; (2) Replacing the computer interlocking software results in a large workload for on-site train commissioning; (3) Replacing the safety equipment software carries significant construction risks; and (4) Replacing the control software incurs high investment costs. Summary of the Invention

[0008] To address the above problems, this invention proposes a fault power outage recovery circuit and its recovery method.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A fault power outage recovery circuit includes a power supply, a node one, and a node two. Node one is connected to the positive terminal of the power supply, and node two is connected to the negative terminal of the power supply. A line one is provided between node one and node two, and a coil of a time-delayed power outage monitoring and resetting relay is provided on line one.

[0011] Line 1 is connected in parallel with Line 2, and Line 2 is equipped with the coil of a reset relay;

[0012] Line 2 is connected in parallel with Line 3, and Line 3 is equipped with a capacitor C and a resistor R;

[0013] Line 3 is connected in parallel with Line 4, and Line 4 is equipped with the coil of a slow-release recovery repeater relay;

[0014] Line 4 is connected to Line 5, and Line 5 is equipped with the coil of the main recovery relay;

[0015] Line 5 is also connected to Line 3.

[0016] Preferably, the first line is further provided with contacts of a power outage monitoring relay, and the contacts of the power outage monitoring relay are connected in series with the power outage monitoring repeater relay.

[0017] Preferably, the second line is further provided with a power outage monitoring and resetting relay contact, wherein the power outage monitoring and resetting relay contact condition and the coil of the reset relay are connected in series.

[0018] Preferably, the third line is further provided with a power outage monitoring relay contact, a main recovery relay contact, a capacitor C, and a resistor R, wherein the power outage monitoring relay contact, the main recovery relay contact, the capacitor C, and the resistor R are connected in series.

[0019] Preferably, the fourth line is further provided with a recovery relay contact, and the recovery relay contact and the coil of the recovery repeater relay are connected in series.

[0020] Preferably, the fifth line is further provided with a recovery repeater relay contact, the recovery repeater relay contact and the coil of the main recovery relay are connected in series, and the coil of the main recovery relay is connected to node two.

[0021] Preferably, the recovery relay contact of line four is connected to the recovery repeater contact of line five, the recovery repeater contact of line five is connected to the contact of the main recovery relay of line three, and is connected to the coil of the main recovery relay of line five.

[0022] Preferably, it also includes a sixth line, one end of which is connected to the positive terminal of the power supply, and the other end is connected to the conditional power supply ZHFJ-Q, with a contact of the main recovery relay in the middle.

[0023] Preferably, it also includes lines seven, eight, nine and ten;

[0024] The seventh line is equipped with the coil of an anti-interference relay, one end of which is connected to the conditional power supply ZHFJ-Q, and the other end is connected to the negative terminal of the power supply.

[0025] The circuit eight includes a pre-start anti-interference relay contact and an anti-interference relay coil connected in series, with one end connected to the positive terminal of the power supply and the other end connected to the negative terminal of the power supply.

[0026] The line nine includes a track relay contact, an anti-interference relay contact, and a main recovery relay contact connected in series. The positive terminal of the line nine is connected to the positive terminal of the line eight, and the negative terminal is connected to the anti-interference relay contact of the line eight that is ready to start.

[0027] The circuit 10 includes a series of track relay contacts and a coil for activating an anti-interference relay, with one end connected to the positive terminal of the power supply and the other end connected to the negative terminal.

[0028] A method for restoring a power outage recovery circuit includes the following steps:

[0029] When power is restored after a power outage, the power supply energizes line one, and the coil of the power outage monitoring relay of line one is energized and energized after a delay.

[0030] When Line 2, which is connected in parallel with Line 1, is turned on, the coil of the recovery relay of Line 2 is energized and pulled up;

[0031] Line 4, which is connected in parallel with Line 2, is conducting, while Line 5, which is connected to Line 4, is disconnected. The coil of the main reset relay of Line 5 is not energized and remains in the down position.

[0032] Line 3, which is connected in parallel with line 2, is turned on, charging capacitor C on line 3;

[0033] The relay for monitoring and resetting power outages on line 1 will be energized and then energized after a delay.

[0034] When Line 2, which is connected in parallel with Line 1, is disconnected, the coil of the reset relay in Line 2 is de-energized and drops.

[0035] When line four, which is connected in parallel with line two, is disconnected, the coil of the reset relay of line four slowly drops, and line five, which is connected to line four, becomes conductive, and the coil of the main reset relay of line five is energized and pulled up.

[0036] Line 3, which is connected in parallel with line 2, is disconnected;

[0037] When the coil of the reset relay in line four is fully depressed, line five is disconnected, capacitor C on line three discharges, and the coil of the total reset relay depresses after a delay due to capacitor discharge.

[0038] Preferably, the method further includes steps six, seven, eight, nine, and ten:

[0039] When capacitor C in line 3 discharges, the conditional power supply ZHFJ-Q in line 6 is energized.

[0040] Conditional power supply ZHFJ supplies power to line seven, line seven is turned on, the coil of the anti-interference relay on line seven is energized, and a receiver is connected to the track to detect the track occupancy status.

[0041] If no vehicle occupies the track, line 10 is connected, then line 8 is connected, and a single-end code is sent for the track.

[0042] If a vehicle occupies the track, line nine will be connected, keeping the receiver connected to the track and monitoring the track status at any time.

[0043] The beneficial effects of this invention are:

[0044] 1. No need to replace the interlocking software;

[0045] 2. No new cables or equipment need to be added outdoors during the renovation;

[0046] 3. No train commissioning is required after the modification;

[0047] 4. The impact of construction and modification during use is small, easy to manage, and has low safety risks;

[0048] 5. The dual-ended coding circuit is related to track coding safety. This invention ensures the checking of initial conditions and the restoration of the initial state when power is restored after a power outage during dual-ended coding.

[0049] 6. Compared to large-scale replacement of control equipment software and the addition of outdoor cables and equipment, this solution requires a lower investment.

[0050] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 A schematic diagram of the existing integrated track circuit channel is shown;

[0053] Figure 2 A schematic diagram of the track circuit code transmission is shown;

[0054] Figure 3 A schematic diagram of adjacent track circuit interference within the station is shown;

[0055] Figure 4 A schematic diagram of the train tail section reinforcement code is shown on the station track.

[0056] Figure 5 The power outage restoration circuit diagrams for lines one through five are shown.

[0057] Figure 6 The circuit diagram for power restoration from line six to line nine is shown.

[0058] Figure 7 The circuit diagram for power outage restoration of line 10 is shown;

[0059] Figure 8 An example diagram of the station area is shown. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] A fault power outage recovery circuit, such as Figure 5As shown, it includes a power supply, node one and node two. Node one is connected to the positive terminal of the power supply, node two is connected to the negative terminal of the power supply, and line one is set between node one and node two. The coil of a delayed power outage monitoring and repeating relay is set on line one.

[0062] Line 1 is connected in parallel with Line 2, and Line 2 is equipped with the coil of a reset relay;

[0063] Line 2 is connected in parallel with Line 3, and Line 3 is equipped with a capacitor C and a resistor R;

[0064] Line 3 is connected in parallel with Line 4, and Line 4 is equipped with the coil of a slow-release recovery relay.

[0065] Line 4 is connected to Line 5, and Line 5 is equipped with the coil of the main recovery relay;

[0066] Line 5 is also connected to Line 3.

[0067] It should be noted that the voltage applied to both ends of line one is generally 24V.

[0068] It should be noted that, Figure 5 The value 024 indicates that this is the negative terminal of the power supply with a potential of 0, while +24 indicates that this is the positive terminal of the power supply with a potential of 24V.

[0069] Furthermore, line 1 is also equipped with contacts of a power outage monitoring relay, and the contacts of the power outage monitoring relay are connected in series with the coil of the power outage monitoring repeater relay.

[0070] It should be noted that the front contact of the power outage monitoring relay is connected to the coil of the GTFJ, and the middle contact is connected to node one.

[0071] It should be noted that the power outage monitoring relay of line 1 is a time relay. When the power outage monitoring relay (GTJ) of line 1 is energized, the power outage monitoring repeater relay (GTJF) of line 1 will be energized and then re-energized after a certain period of time, for example, the delay time is set to 7 seconds.

[0072] It should be noted that in circuit one, GTJ is the relay contact, GTJF is the relay coil, and the coil is represented by an empty circle. This indicates that the relay is an instant-on-off relay, meaning that the relay will immediately pick up after charging and immediately drop down after power is cut off.

[0073] It should be noted that when the coil is magnetized and rises, the corresponding contact will also rise, indicated by the up arrow next to the contact. When the coil is demagnetized and falls, the corresponding contact will also fall, indicated by the down arrow next to the contact. The arrow next to each relay contact indicates whether the initial state (also known as normal state) of the relay coil is magnetized and rises or demagnetized and falls.

[0074] It should be noted that, Figure 5 The 1 and 4 on both sides of each relay indicate different interfaces.

[0075] It needs to be further explained that, such as Figure 5 As shown in circuit one, if the GTJ coil is energized, the GTJ contact state is ↑, and circuit one is connected. If the GTJ coil is de-energized, the GTJ contact state is ↓, and circuit one is disconnected.

[0076] Furthermore, Line 2 is also equipped with a power outage monitoring and reset relay contact, and the coils of the power outage monitoring and reset relay are connected in series.

[0077] It should be noted that the power outage monitoring repeater relay (GTFJ) has multiple sets of contacts. Line 1 and Line 2 are connected to different contacts of the same GTJF. In Line 2, the GTJF is presented in the form of a contact, while the reset relay (HFJ) is presented in the form of a magnetizing coil that can be pulled in and out immediately.

[0078] It should be noted that the rear contact of GTFJ is connected to the coil of HFJ, and the middle contact is connected to node one.

[0079] It should be further explained that if GTFJ of line 2 increases, line 2 is disconnected, and vice versa.

[0080] Furthermore, Line 3 is also equipped with a power outage monitoring relay contact, a main recovery relay contact, a capacitor C, and a resistor R, which are connected in series.

[0081] It should be noted that the power outage monitoring relay (GTJ) has multiple sets of contacts, and Line 3 and Line 1 are connected to different contacts of the same GTJ. When ZHFJ of Line 3 is ↑, Line 3 is open; conversely, when it is ↓, Line 3 is closed.

[0082] It should be noted that the middle terminal of GTJ in line 3 is connected to the rear terminal of ZHFJ, the front terminal of GTJ is connected to node 1, and the middle terminal of ZHFJ is connected to capacitor C.

[0083] Furthermore, line four is also equipped with a reset relay contact, and the coils of the reset relay contact and the reset repeater relay are connected in series.

[0084] It should be noted that the reset relay (HFJ) has multiple sets of contacts. Line 4 and Line 2 are connected to different contacts of the same HFJ. In addition, the reset relay (HFJF) in Line 4 is presented as a semi-hollow circular coil, indicating that this relay is a slow-release relay, that is, the relay immediately picks up after charging and drops after a period of time after power is cut off.

[0085] It should be noted that in circuit four, the front contact of HFJ is connected to the coil of HFJF, and the middle contact is connected to node one.

[0086] Furthermore, line five is also equipped with a recovery repeater relay contact, the recovery repeater relay contact and the coil of the main recovery relay are connected in series, and the coil of the main recovery relay is connected to node two.

[0087] It should be noted that the reset relay HFJF has multiple sets of contacts. Line 5 and Line 4 are both connected to different contacts of the same HFJF. In addition, the main reset relay (ZHFJ) of Line 5 is a relay that is activated and deactivated simultaneously.

[0088] It should be noted that in circuit five, the front contact of HFJF is connected to the rear contact of HFJ in circuit four, and the middle contact of HFJF is connected to the coil of ZHFJ.

[0089] Furthermore, the recovery relay contact of line four is connected to the recovery repeater contact of line five, the recovery repeater contact of line five is connected to the contact of the main recovery relay of line three, and is connected to the coil of the main recovery relay of line five.

[0090] It should be noted that the front contact of ZHFJ in line three is connected to the middle contact of HFJF in line five.

[0091] Furthermore, such as Figure 6 As shown, it also includes line six, one end of which is connected to the positive terminal of the power supply, and the other end is connected to the conditional power supply ZHFJ-Q, with a main recovery relay contact in the middle.

[0092] It should be noted that in line six, the middle contact of the main restoring relay ZHFJ is connected to the power supply, and the front contact is connected to ZHFJ-Q.

[0093] It should be noted that line six is ​​for controlling the working state of the conditional power supply. If it is on, the conditional power supply can supply power to line seven. Moreover, the voltage at one end of the ZHFJ terminal of line six connected to the main recovery relay is consistent with the power supply voltage, which is generally 24V.

[0094] It should be noted that the main reset relay (ZHFJ) has multiple sets of contacts, and lines six, five, and three are all connected to different contacts of the same ZHFJ.

[0095] Furthermore, it also includes lines seven, eight, nine, and ten;

[0096] Line 7 is equipped with an anti-interference relay coil, one end of which is connected to the conditional power supply ZHFJ-Q, and the other end is connected to the negative terminal of the power supply.

[0097] Circuit 8 includes a series connection of the anti-interference relay contacts and the coil of the anti-interference relay, with one end connected to the positive terminal of the power supply and the other end connected to the negative terminal of the power supply.

[0098] Line 9 includes a series of track relay contacts, anti-interference relay contacts, and a main reset relay contact. The positive terminal of Line 9 is connected to the positive terminal of Line 8, and the negative terminal is connected to the anti-interference relay contact of Line 8 that is ready to start.

[0099] like Figure 7 As shown, circuit 10 includes a series-connected track relay contact and a coil for activating an anti-interference relay, with one end connected to the positive terminal of the power supply and the other end connected to the negative terminal.

[0100] It should be noted that, Figure 7 The numbers 1, 2, 3, and 4 marked next to the FGRJ coil indicate different coil contacts.

[0101] It should be noted that the anti-interference relay (FGRJ) uses separate coils and is an instant-on / instant-off relay. When coils 3 and 4 are energized, or coils 1 and 2 are energized, the coils are magnetized, and the FGRJ contacts snap up. The anti-interference relay (FGRJ) has multiple sets of contacts. In circuit nine, the FGRJ is a relay contact; when coils 3 and 4 or coils 1 and 2 are energized, the FGRJ relay contact in circuit nine snaps up. The anti-interference relay (ZQFJ) for activation has multiple sets of contacts. Circuits eight and nine use the same set of contacts (front and back), meaning that when ZQFJ snaps up, it connects to circuit eight; when ZQFJ snaps down, it connects to circuit nine. Circuit ten connects to different sets of contacts on the same ZQFJ. The ZHFJ in circuit nine and the ZHFJ in circuit six are the same, the difference being that they use different sets of contacts.

[0102] It should be noted that in circuit eight, the front contact of ZQFJ is connected to the power supply, the rear contact is connected to circuit nine, and the middle contact is connected to the coil of FGRJ. In circuit nine, the middle contact of 3GJ is connected to the power supply, the rear contact is connected to the middle contact of FGRJ, the front contact of FGRJ is connected to the middle contact of ZHFJ, and the rear contact of ZHFJ is connected to the rear contact of ZQFJ.

[0103] A method for restoring a power outage recovery circuit includes the following steps:

[0104] When power is restored after a power outage, the power supply energizes line one, and the coil of the power outage monitoring relay of line one is energized and energized after a delay.

[0105] When Line 2, which is connected in parallel with Line 1, is turned on, the coil of the recovery relay of Line 2 is energized and pulled up;

[0106] Line 4, which is connected in parallel with Line 2, is conducting, while Line 5, which is connected to Line 4, is disconnected. The coil of the main reset relay of Line 5 is not energized and remains in the down position.

[0107] Line 3, which is connected in parallel with line 2, is turned on, charging capacitor C on line 3;

[0108] The relay for monitoring and resetting power outages on line 1 will be energized and then energized after a delay.

[0109] When Line 2, which is connected in parallel with Line 1, is disconnected, the coil of the reset relay in Line 2 is de-energized and drops.

[0110] When line four, which is connected in parallel with line two, is disconnected, the coil of the reset relay of line four slowly drops, and line five, which is connected to line four, becomes conductive, and the coil of the main reset relay of line five is energized and pulled up.

[0111] Line 3, which is connected in parallel with line 2, is disconnected;

[0112] When the coil of the reset relay in line four is fully depressed, line five is disconnected, capacitor C on line three discharges, and the coil of the total reset relay depresses after a delay due to capacitor discharge.

[0113] Furthermore, it also includes steps for routes six, seven, eight, nine, and ten:

[0114] When capacitor C in line 3 discharges, the conditional power supply ZHFJ-Q in line 6 is energized.

[0115] Conditional power supply ZHFJ supplies power to line seven, line seven is turned on, the coil of the anti-interference relay on line seven is energized, and a receiver is connected to the track to detect the track occupancy status.

[0116] If no vehicle occupies the track, line 10 is connected, then line 8 is connected, and a single-end code is sent for the track.

[0117] If a vehicle occupies the track, line nine will be connected, keeping the receiver connected to the track and monitoring the track status at any time.

[0118] It should be noted that the operating principle of the fault power outage circuit is as follows:

[0119] During a power outage, all relays are in a demagnetized and fallen state. When power is restored, the GTJ relay of line one is energized and its coil is energized after collecting power supply information from the power supply panel. Since GTJF uses a time relay, it is not energized temporarily (the duration is 7 seconds). At this time, the coil of GTJF of line two remains in a fallen state, making line two connected. The coil of HFJ of line two is energized, so the HFJ contact of line four is also energized, causing line four to conduct. The coil of HFJF of line four is energized. Since the HFJ contact of line four is energized, line five remains disconnected. The coil of ZHFJ of line five remains fallen, so the ZHFJ contact of line three remains fallen. Then the GTJ contact of line three is energized, so line three is conducting at this time. The capacitor C on line three is in a charging state at this time.

[0120] After 7 seconds, the coil of GTJF in line 1 is energized and pulled up. At this time, the GTJF contact of line 2 remains pulled up. Line 2 is disconnected, and the coil of HFJ in line 2 is de-energized and falls down.

[0121] At this time, the HFJ contact of line four remains closed, line four is open, and the coil of HFJF of line four will slowly fall because it is a slow-release relay;

[0122] At this time, the HFJF contact of line five slowly drops, line five remains in a conducting state for a period of time, and the ZHFJ coil of line five is energized and attracted.

[0123] At this time, the ZHFJ contact of line three remains engaged, and line three is in an open state;

[0124] After the HFJF contact of line five is fully closed, capacitor C continues to supply power to the coil of ZHFJ in line five, keeping it in the energized state (for 5 seconds).

[0125] At this time, the contact of ZHFJ in line six remains energized, the condition power supply ZHFJ is energized, then line seven is connected, the coil of FGRJ in line seven is energized and energized, and the 3G receiver is connected to the track circuit to check the track occupancy condition.

[0126] If there is no train occupying the 3G track at this time, line 10 is connected and ZQFJ is activated; after ZQFJ is activated, line 8 is connected, FGRJ remains activated, and the track sends codes at one end.

[0127] If a vehicle occupies the 3G track at this time, 3GJ will drop, FGRJ will remain lifted within 5 seconds, line nine will be connected, and the receiver will remain connected to the track circuit to monitor the track status at any time.

[0128] After capacitor C in line five discharges, the coil of ZHFJ drops, line nine remains connected, and the receiver is connected to the track circuit to monitor the track status at any time.

[0129] It should be noted that the GTJF relay is delayed in energizing for 7 seconds to allow the control track dual-end coding circuit to resume operation after other relays and equipment have been powered on.

[0130] It should be noted that the RC discharge 5s power-on condition is to connect the track receiver to the track circuit to detect the current track status.

[0131] It should be noted that relays use the principle of electromagnets to connect and disconnect circuits. Their characteristics mean that a single relay cannot perform state memory or logical judgment. Therefore, multiple relays are needed to form a relay circuit to achieve the goal of initializing the dual-end code-generating circuit of the track.

[0132] It should be noted that this invention provides protection for the track double-end code transmission circuit during power outage and power-on initialization by utilizing a small additional relay circuit; this invention enables the receiver to be safely connected to the track circuit during power-on initialization after a station power outage, and provides conditions for subsequent track double-end code transmission protection; this invention requires no software modifications for outdoor use and is applicable to track double-end code transmission protection circuits.

[0133] It should be noted that, as Figure 8 As shown, 3G and IG represent tracks, 1DG and 2DG represent turnout sections; when a vehicle enters a track from the right, 2DG represents the turnout section of the receiving route, 1DG represents the turnout section of the departure route, X3 represents the exit signal of track 3, and X and SN represent the entry signal.

[0134] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fault power outage recovery circuit, characterized in that, It includes a power supply, node one, and node two. Node one is connected to the positive terminal of the power supply, and node two is connected to the negative terminal of the power supply. A line one is provided between node one and node two. A power outage monitoring relay contact and a delayed power outage monitoring repeater coil are connected in series on the line one. Line 1 is connected in parallel with Line 2, and Line 2 is equipped with a power outage monitoring and reset relay contact and a reset relay coil connected in series. Line 2 is connected in parallel with Line 3. Line 3 is equipped with a power outage monitoring relay contact, a main recovery relay contact, a capacitor C, and a resistor R. The power outage monitoring relay contact, the main recovery relay contact, the capacitor C, and the resistor R are connected in series. Line 3 is connected in parallel with Line 4, and Line 4 is provided with a reset relay contact and a slow-release reset relay coil connected in series. Line 4 is connected to Line 5, and Line 5 is provided with a series of interconnected reset relay contacts and a main reset relay coil; the coil of the main reset relay is connected to node 2. Line 5 is also connected to Line 3.

2. The fault power outage recovery circuit according to claim 1, characterized in that, The recovery relay contact of line four is connected to the recovery repeater contact of line five, the recovery repeater contact of line five is connected to the contact of the main recovery relay of line three, and is connected to the coil of the main recovery relay of line five.

3. A fault power outage recovery circuit according to claim 1 or 2, characterized in that, It also includes line six, one end of which is connected to the positive terminal of the power supply, and the other end is connected to the conditional power supply ZHFJ-Q, with a contact of the main recovery relay in the middle.

4. A fault power outage recovery circuit according to claim 3, characterized in that, It also includes Line 7, Line 8, Line 9 and Line 10; The seventh line is equipped with the coil of an anti-interference relay, one end of which is connected to the conditional power supply ZHFJ-Q, and the other end is connected to the negative terminal of the power supply. The circuit eight includes a pre-start anti-interference relay contact and an anti-interference relay coil connected in series, with one end connected to the positive terminal of the power supply and the other end connected to the negative terminal of the power supply. The line nine includes a track relay contact, an anti-interference relay contact, and a main recovery relay contact connected in series. The positive terminal of the line nine is connected to the positive terminal of the line eight, and the negative terminal is connected to the anti-interference relay contact of the line eight that is ready to start. The circuit 10 includes a series of track relay contacts and a coil for activating an anti-interference relay, with one end connected to the positive terminal of the power supply and the other end connected to the negative terminal.

5. A method for restoring a fault power outage recovery circuit, executed by a fault power outage recovery circuit according to any one of claims 1-4, characterized in that, Includes the following steps: When power is restored after a power outage, the power supply energizes line one, and the coil of the power outage monitoring relay of line one is energized and energized after a delay. When Line 2, which is connected in parallel with Line 1, is turned on, the coil of the recovery relay of Line 2 is energized and pulled up; Line 4, which is connected in parallel with Line 2, is conducting, while Line 5, which is connected to Line 4, is disconnected. The coil of the main reset relay of Line 5 is not energized and remains in the down position. Line 3, which is connected in parallel with line 2, is turned on, charging capacitor C on line 3; The relay for monitoring and resetting power outages on line 1 will be energized and then energized after a delay. When Line 2, which is connected in parallel with Line 1, is disconnected, the coil of the reset relay in Line 2 is de-energized and drops. When line four, which is connected in parallel with line two, is disconnected, the coil of the reset relay of line four slowly drops, and line five, which is connected to line four, becomes conductive, and the coil of the main reset relay of line five is energized and pulled up. Line 3, which is connected in parallel with line 2, is disconnected; When the coil of the reset relay in line four is fully depressed, line five is disconnected, capacitor C on line three discharges, and the coil of the total reset relay depresses after a delay due to capacitor discharge.

6. The method for restoring a fault power outage recovery circuit according to claim 5, characterized in that, It also includes steps for lines six, seven, eight, nine, and ten: When capacitor C in line 3 discharges, the conditional power supply ZHFJ-Q set on line 6 is energized. Conditional power supply ZHFJ supplies power to line seven, line seven is turned on, the coil of the anti-interference relay on line seven is energized, and a receiver is connected to the track to detect the track occupancy status. If no vehicle occupies the track, line 10 is connected, then line 8 is connected, and a single-end code is sent for the track. If a vehicle occupies the track, line nine will be connected, keeping the receiver connected to the track and monitoring the track status at any time.

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