Method and system for a radio block center to calculate train reverse information

Abstract

The present invention relates to a method and system for calculating train reverse information by a radio block center, belonging to the technical field of train reverse. The method includes: determining the stage where the train is located; calculating the reverse information of the train according to the stage. The system includes: a determination module for determining the stage where the train is located; a reverse information calculation module for calculating the reverse information of the train according to the stage. The present invention can avoid the situation that the train erroneously judges that it has the reverse condition and enters the reverse mode, hitting an obstacle or the following train, thus ensuring the safety of train travel. It can also improve the accuracy of inspection and ensure accurate information is sent to the train.

Description

Technical Field

[0001] The present invention belongs to the technical field of train reverse running, and particularly relates to a method and a system for a radio block center to calculate train reverse running information. Background Art

[0002] With the development of high-speed railways, the mileage of passenger high-speed railways equipped with radio block center devices in China alone has exceeded 10,000 kilometers. During the process of controlling train operation, it is inevitable to encounter the scenario of train reverse running. If the radio block center device cannot ensure the safety of train reverse running within its jurisdiction, it may lead to accidents such as a train hitting an obstacle or colliding with other trains during the reverse running process, causing harm.

[0003] The radio block center device is the core device of the train control system. The radio block center device sends a movement authority command to the on-board device through wireless transmission, authorizes and monitors the distance and speed of the train running, and ensures the safe operation of the train. The radio block center has the function of controlling train reverse running. First, a train can only reverse after receiving reverse running information and meeting the reverse running conditions. If the reverse running information calculated by the radio block center is incorrect, it may cause the train to misjudge that it has met the reverse running conditions and enter the reverse running mode. Second, once the train enters the reverse running mode, it means that the running direction has changed, and the existing movement authority of the train cannot be used as the basis for the reverse running distance and reverse running speed. At this time, if the radio block center cannot correctly calculate and update the train reverse running information, it may cause the train to hit an obstacle or the following train during the reverse running process, resulting in an accident.

[0004] To solve the above problems, it is necessary to design a method and a system for a radio block center to calculate train reverse running information. Summary of the Invention

[0005] In view of the above problems, the present invention provides a method for a radio block center to calculate train reverse running information, and the method includes:

[0006] Determine the stage where the train is located;

[0007] Calculate the train reverse running information according to the stage.

[0008] Preferably, the stage includes the stage where the authorized train has not entered the reverse running mode and the stage where the train has entered the reverse running mode.

[0009] Preferably, the reverse running information includes reverse running area information and reverse running supervision information.

[0010] Preferably, the reverse running area information includes the distance between the train and the reverse running area and the length of the reverse running area;

[0011] The reverse running supervision information includes the maximum reverse running distance and the reverse running mode limited speed.

[0012] Preferably, the distance of the train from the reverse area is the distance from the train reference position transponder to the starting point of the reverse area;

[0013] The maximum allowable reverse distance is the maximum distance that the train can reverse after entering the reverse mode, and the maximum allowable reverse distance includes the reverse area and the user-configured distance;

[0014] The reverse mode restricted speed is the maximum allowable driving speed of the train in the reverse mode.

[0015] Preferably, if the train is in the stage of not entering the reverse mode, the following steps are executed:

[0016] Obtain the mobile authorization line description and 1 to n routes included in the authorization;

[0017] Traverse and query whether all the above routes are configured with a reverse area;

[0018] After it is queried that there is a reverse area on the route, update the reverse information and save the reverse area line description;

[0019] If there is a reverse area within the authorization range, write the presumed area information into the reverse area information and the reverse supervision information, and send it to the on-vehicle equipment of the train;

[0020] If there is no reverse area within the authorization range, only send the mobile authorization to the on-vehicle equipment of the train.

[0021] Preferably, if the train is in the stage of having entered the reverse mode, the following steps are executed:

[0022] Calculate and update the train position;

[0023] Judge whether the conditions for the train to update the reverse information are met, where the conditions include whether the train is in the reverse mode, whether the current train position is updated successfully, and whether the train is in the reverse area;

[0024] If any of the above conditions is not met, clear all the reverse information and send a signal not allowing reverse to the train;

[0025] If all the above conditions are met, update the reverse information;

[0026] After the reverse information is updated successfully, write the information of the reverse area into the reverse area information and the reverse supervision information, and send it to the on-vehicle equipment of the train;

[0027] When the update of the reverse information fails, clear all the reverse information and immediately send a signal not allowing reverse to the train.

[0028] Preferably, clearing all the reverse information includes:

[0029] Set the maximum retractable distance to 0, write the information of the retraction area into the retraction area information and retraction supervision information, and send it to the on-vehicle equipment of the train.

[0030] Preferably, the updating of the retraction information includes the following steps:

[0031] Obtain the latest line description and retraction information of the retraction area;

[0032] Obtain n routes in the line description of the retraction area, and query whether the routes in all routes meet the retraction conditions;

[0033] Judge whether the train can enter the route;

[0034] Calculate the retraction information;

[0035] Save the line description and retraction information of the retraction area, and the line description of the retraction area is used as the line description of the retraction area for the next inspection and update of the retraction information.

[0036] Preferably, the judging whether the train can enter the route includes the following steps:

[0037] Check whether a disaster has been activated in the area where the route is located. If a disaster has been activated, stop the inspection. The train cannot retract to the route, and at the same time calculate the retraction information;

[0038] Check whether there are other trains on the route except the retracting train. If there are other trains, stop the inspection. The train cannot retract to the route, and at the same time calculate the retraction information;

[0039] Check whether the route changes from locked and idle to occupied. If the route changes from locked and idle to occupied, judge whether the 13s delay inspection logic is satisfied. If it is not satisfied, stop the inspection. The train cannot retract to the route, and at the same time calculate the retraction information;

[0040] Check whether there are downgrades and other reactions on the route. If there are downgrades and other reactions, the train cannot retract to the route, and at the same time calculate the retraction information.

[0041] Preferably, the 13s delay inspection logic includes starting a 13s countdown. If the retracting train does not enter the route when the 13s timing ends, it means that the occupancy of the route is not caused by the retracting train, then stop the inspection. The train cannot retract to the route, and at the same time calculate the retraction information; if the train retracts into the route within 13s, it means that the occupancy of the route is caused by the retracting train.

[0042] Preferably, the other reactions include the shortened movement authorization reaction caused by the approach of the train and the unconditional emergency stop reaction caused by the occupation of the train.

[0043] Preferably, the calculation of the reverse information includes the following steps:

[0044] Set the distance of the train from the reverse area to 0;

[0045] Obtain the reverse mode restricted speed and configured distance through the reverse area index;

[0046] Calculate the length of the reverse area;

[0047] Calculate the maximum available reverse distance according to the length of the reverse area.

[0048] Preferably, the calculation of the length of the reverse area includes the following cases:

[0049] If the train can reverse into the route, the length of the reverse area is the length from the start point of the reverse area to the start point of the route;

[0050] If the train cannot reverse into the route, calculate the length of the reverse area according to the end point of the reverse area.

[0051] Preferably, the calculation of the length of the reverse area according to the end point of the reverse area includes the following cases:

[0052] When the end point of the reverse area is within the route, the length of the reverse area is the length from the start point of the reverse area to the end point of the reverse area;

[0053] When the end point of the reverse area crosses the route, the length of the reverse area is the length from the start point of the reverse area to the end point of the route.

[0054] Preferably, the calculation of the maximum available reverse distance according to the length of the reverse area includes adding the length of the reverse area and the configured distance as the maximum available reverse distance.

[0055] The present invention also provides a system for a radio block center to calculate train reverse information, and the system includes:

[0056] A judgment module for judging the stage where the train is located;

[0057] A reverse information calculation module for calculating the reverse information of the train according to the stage.

[0058] Preferably, the judgment module judges the stage where the train is located, and judges whether the train is in the stage of not entering the reverse mode or the train has entered the reverse mode stage.

[0059] Preferably, the reverse information includes reverse area information and reverse supervision information;

[0060] Among them, the reverse area information includes the distance of the train from the reverse area and the length of the reverse area;

[0061] The reverse supervision information includes the maximum reverse distance and the reverse mode limited speed.

[0062] The present invention has the following beneficial effects:

[0063] (1) In the present invention, during the running of the train, first judge the stage where the train is located, and then change the reverse information of the train according to the different stages, which can avoid the situation that the train misjudges that it has the reverse condition and enters the reverse mode and hits an obstacle or the following train due to incorrect reverse information, ensuring the safety of the train's progress;

[0064] (2) In the present invention, when judging whether the train can enter the reverse route, by checking conditions such as whether the route is activated for disasters, whether there are other trains except the reverse train, whether it changes from locked and idle to occupied, whether there are downgrades and other reactions, etc., the accuracy of the inspection can be improved, ensuring that accurate information is sent to the train.

[0065] Other features and advantages of the present invention will be described in the following specification, and, in part, will become apparent from the specification or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures pointed out in the specification, claims, and drawings. Description of the Drawings

[0066] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0067] Figure 1 Schematic diagram showing a method for a radio block center to calculate train reverse information in an embodiment of the present invention;

[0068] Figure 2 Schematic diagram showing the reverse area and reverse information in an embodiment of the present invention;

[0069] Figure 3 Flowchart showing the radio block center calculating and updating reverse information for an authorized train in an embodiment of the present invention;

[0070] Figure 4 Flowchart showing the radio block center calculating and updating reverse information for a train in the reverse mode in an embodiment of the present invention;

[0071] Figure 5The flowchart showing the specific method for a radio block center to calculate and update the reverse area information for a train in reverse mode in an embodiment of the present invention;

[0072] Figure 6 The schematic diagram showing a system for a radio block center to calculate the reverse information of a train in an embodiment of the present invention. Detailed implementation manners

[0073] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0074] As shown in the Figure 1 accompanying drawings, a method for a radio block center to calculate the reverse information of a train includes:

[0075] Determine the stage in which the train is located. The stages include the stage where an authorized train has not entered the reverse mode and the stage where the train has entered the reverse mode;

[0076] As shown in the Figure 2 accompanying drawings, change the reverse information of the train according to the stage. The reverse information includes the reverse area information P138 and the reverse supervision information P139. The reverse area information includes the distance D_STARTREVERSE of the train from the reverse area and the length L_REVERSEAREA of the reverse area. The distance of the train from the reverse area is the distance from the train reference position transponder B to the starting point S of the reverse area. The reverse supervision information includes the maximum reverseable distance D_REVERSE and the reverse mode restricted speed V_REVERSE. The maximum reverseable distance is the maximum distance that the train can reverse after entering the reverse mode. The maximum reverseable distance D_REVERSE includes the reverse area L_REVERSE and the configured distance Dist. The reverse area is the area between the end point E of the reverse area and the maximum reverseable end point M. The reverse mode restricted speed V_REVERSE is the maximum speed that the train can travel in the reverse mode. In this embodiment, outside the reverse area and in the opposite direction of the reverse area, the user can configure the maximum reverseable distance Dist of the train, and this value can be flexibly designed according to the line conditions.

[0077] As shown in the Figure 3 accompanying drawings, if the train is in the stage of not entering the reverse mode, then perform the following steps:

[0078] Obtain the mobile authorization route description and the 1 to n routes included in the authorization. Starting from the route where the train reference position transponder is located, traverse and search whether there is a reverse area on route r among the 1 to n routes. If no reverse area is found on route r, the radio block center sends a mobile authorization without a reverse information packet to the train;

[0079] If a reverse area is found on route r, calculate and update the reverse information, save and update the route description of the end point of the first reverse area within the mobile authorization range. After finding a reverse area on the route, update the reverse information, and save the reverse area route description ReverseLine and the reverse information. The radio block center sends a mobile authorization with reverse information including reverse area information P138 and reverse supervision information P139 to the train.

[0080] As attached Figure 4 As shown, if the train is in the stage of having entered the reverse mode, the following steps are executed:

[0081] Calculate and update the train position, specifically that the radio block center receives the train position report and updates the train position;

[0082] Judge whether the conditions for the train to update the reverse information are met, where the conditions include whether the train is in the reverse mode, whether the current train position is updated successfully, and whether the train is in the reverse area;

[0083] If any condition is not met, clear all reverse information, set the radio block center's allow reverse information to 0, save it to the reverse supervision information P139, and the radio block center sends a non-allowance reverse signal;

[0084] If all conditions are met, calculate and update the reverse information;

[0085] After the reverse information is updated successfully, write the information of the reverse area into the reverse area information P138 and the reverse supervision information P139, and send it to the on-board equipment of the train;

[0086] When the reverse information update fails, clear all reverse information and immediately send a non-allowance reverse signal to the train;

[0087] Clearing all reverse information includes: setting the maximum allowable reverse distance D_REVERSE to 0, writing the reverse area information into the reverse area information P138 and the reverse supervision information P139, and sending it to the on-board equipment of the train.

[0088] As attached Figure 5 As shown, updating the reverse information includes the following steps:

[0089] Obtain the latest reverse area route description ReverseLine and the reverse information;

[0090] Obtain n routes in the reverse area line description ReverseLine, and query whether route r among the 1st to nth routes meets the reverse conditions;

[0091] Determine whether the train can enter route r. Determining whether the train can enter route r includes the following steps: Check whether a disaster has been activated in the area where route r is located. If a disaster has been activated, stop the check. The train cannot reverse to route r. Then calculate and update the reverse information, save and update the line description NewReverseLine from the starting point to the ending point of the new reverse area and the reverse information, and save the calculation result. If a disaster has not been activated, check whether there are other trains on route r other than the reversing train. If there are other trains, stop the check. The train cannot reverse to route r, and at the same time calculate the reverse information. If there are no other trains, check whether route r has changed from locked and idle to occupied. If route r has not changed from locked and idle to occupied, check whether there is a downgrade or other reaction on route r. If route r has changed from locked and idle to occupied, when route r changes from idle to occupied, start a 13s delay logic check to determine whether the occupation of route r is caused by the reversing train. If the occupation of route r is not caused by the reversing train, then the train cannot reverse to route r. Then calculate and update the reverse information, save and update the line description NewReverseLine from the starting point to the ending point of the new reverse area and the reverse information, and save the calculation result. If the occupation of route r is caused by the reversing train, check whether there is a downgrade or other reaction on route r. Among them, other reactions include the Shortened Movement Authority (SMA) reaction caused by the approach of a train and the Unconditional Emergency Stop (UEM) reaction caused by a train occupying. If the check fails, then the train cannot reverse to route r. If the check passes, then the train can reverse to route r. Then calculate and update the reverse information, save and update the line description NewReverseLine from the starting point to the ending point of the new reverse area and the reverse information, and save the calculation result.

[0092] Calculate the reverse information. Calculating the reverse information includes the following steps: Set the distance D_STARTREVERSE of the train from the reverse area to 0;

[0093] Obtain the reverse mode restricted speed V_REVERSE and the configured distance Dist through the reverse area index;

[0094] Calculate the length L_REVERSEAREA of the reverse area. Calculating the length L_REVERSEAREA of the reverse area includes the following cases: If the train can reverse into the route r, the length of the reverse area is the length from the starting point of the reverse area to the starting point of the route r; If the train cannot reverse into the route r, calculate the length L_REVERSEAREA of the reverse area according to the end point of the reverse area. Calculating the length L_REVERSEAREA of the reverse area according to the end point of the reverse area includes the following cases: When the end point of the reverse area is within the route r, the length of the reverse area is the length from the starting point of the reverse area to the end point of the reverse area; When the end point of the reverse area crosses the route r, the length L_REVERSEAREA of the reverse area is the length from the starting point of the reverse area to the end point of the route r; Calculate the maximum reverse distance D_REVERSE according to the length L_REVERSEAREA of the reverse area. Calculating the maximum reverse distance D_REVERSE according to the length L_REVERSEAREA of the reverse area includes adding the configuration distance Dist to the length L_REVERSEAREA of the reverse area as the maximum reverse distance D_REVERSE;

[0095] Save the reverse area line description ReverseLine and the reverse information. The reverse area line description is used for the next check and update of the reverse information.

[0096] As Figure 6 shown, the present invention also proposes a system for a radio block center to calculate train reverse information. The system includes:

[0097] A judgment module, used to judge the stage where the train is located;

[0098] A reverse information calculation module, used to calculate the reverse information of the train according to the stage.

[0099] The judgment module judges the stage where the train is located, and judges whether the train is in the stage of not entering the reverse mode or the train has entered the reverse mode; The reverse information includes reverse area information and reverse supervision information; Among them, the reverse area information includes the distance of the train from the reverse area and the length of the reverse area; The reverse supervision information includes the maximum reverse distance and the reverse mode limit speed.

[0100] Those of ordinary skill in the art should understand that: Although the present invention has been described in detail with reference to the foregoing embodiments, it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for calculating train regression information in a radio block center, characterized in that: The method comprises: Determine the stage the train is in; the stage includes a stage where the authorized train has not entered the degenerate mode and a stage where the train has entered the degenerate mode; If the train has entered the regression mode, the following steps are performed: Calculate and update train positions; Determine whether the conditions for updating the train's retrogression information are met, wherein the conditions include whether the train is in retrogression mode, whether the current train position is updated successfully, and whether the train is in a retrogression area; If any of the above conditions is not met, all retreat information is cleared and a no retreat signal is sent to the train; If all the conditions are met, the regression information is updated; After the degenerate information is successfully updated, the information of the degenerate area is written into the degenerate area information and the degenerate supervision information, and sent to the on-board equipment of the train; When the reversal information update fails, all reversal information is cleared and a no-reversal signal is immediately sent to the train; Wherein, updating the regression information comprises the following steps: Get the latest route descriptions and regression information for regression areas; Get n routes in the route description of the regression area, and query whether the routes in all routes meet the regression conditions; Determine whether the train can enter the route; Calculate regression information; The degenerate area line description and degenerate information are saved, and the degenerate area line description is used as the degenerate area line description for checking and updating the degenerate information next time; The step of judging whether the train can enter the route comprises the following steps: Check whether the area where the route is located has been activated. If the disaster is activated, stop the check and the train cannot retreat to the route. At the same time, calculate the retreat information; Check whether there are other trains besides the retreating train on the approach route. If there are other trains, stop checking and the train cannot retreat to the approach route. Meanwhile, calculate the retreat information. Check whether the route changes from locked and idle to occupied. If the route changes from locked and idle to occupied, determine whether the 13s delay check logic is met. If not, stop checking and the train cannot retreat to the route. Meanwhile, calculate retreat information. Check whether there is degradation and other reactions on the route. If there is degradation and other reactions, the train cannot retreat to the route and calculate the retreat information; The train regression information is calculated according to the stages.

2. The method for calculating train regression information by a radio block center according to claim 1, characterized in that: The regression information includes regression area information and regression supervision information.

3. The method for calculating train regression information by a radio block center according to claim 2, characterized in that: The degenerate area information includes the distance between the train and the degenerate area and the length of the degenerate area; The reversal supervision information includes a maximum reversible distance and a reversal mode speed limit.

4. The method for calculating train regression information by a radio block center according to claim 3, characterized in that: The distance between the train and the retrograde area is the distance between the train reference position transponder and the starting point of the retrograde area; The maximum reversible distance is the maximum distance that the train can reversibly travel after entering the reversing mode, and the maximum reversible distance includes the reversing area and the user-configured distance; The reverse mode speed limit is the maximum drivable speed of the train in the reverse mode.

5. The method for calculating train regression information by a radio block center according to claim 4, characterized in that: If the train is not in the regressive mode, perform the following steps: Get the mobile authorization line description and the 1 to n routes included in the authorization; Traversing and querying whether all the routes are configured with a fallback area; After finding out that there is a regression area on the approach route, update the regression information and save the line description of the regression area; If there is a degenerate area within the authorized range, the estimated area information is written into the degenerate area information and degenerate supervision information, and sent to the on-board equipment of the train; If there is no regression area within the authorization range, the movement authorization is only sent to the on-board equipment of the train.

6. The method for calculating train regression information by a radio block center according to claim 1, characterized in that: The clearing of all regression information includes: The maximum reversible distance is set to 0, and the information of the reversal area is written into the reversal area information and the reversal supervision information, and sent to the on-board equipment of the train.

7. The method for calculating train regression information by a radio block center according to claim 1, characterized in that: The 13s delay check logic includes starting a 13s countdown. If the retreating train does not enter the approach after the 13s countdown, it means that the occupation of the approach is not caused by the retreating train, then the check is stopped, the train cannot retreat to the approach, and the retreat information is calculated at the same time; If the train reverses and enters the approach within 13 seconds, it means that the occupation of the approach is caused by the reversing train.

8. The method for calculating train regression information by a radio block center according to claim 1, characterized in that: The other reactions include a shortened movement authorization reaction caused by an approaching train and an unconditional emergency stop reaction caused by an occupied train.

9. The method for calculating train regression information by a radio block center according to claim 1, characterized in that: The calculation of the regression information comprises the following steps: Set the distance of the train from the retreat area to 0; Obtain the limit speed and configuration distance of the regression mode through the regression area index; Calculate the length of the regression zone; The maximum possible retreat distance is calculated based on the length of the retreat area.

10. The method for calculating train regression information by a radio block center according to claim 9, characterized in that: The calculation of the length of the degenerate region includes the following cases: If the train can retreat into the approach route, the length of the retreat area is the length from the start of the retreat area to the start of the approach route; If the train cannot reverse into the approach route, the length of the reverse area is calculated based on the end point of the reverse area.

11. The method for calculating train regression information by a radio block center according to claim 10, characterized in that: The calculation of the length of the degenerate region according to the end point of the degenerate region includes the following cases: When the end point of the regression area is within the approach, the length of the regression area is the length from the start point of the regression area to the end point of the regression area; When the end point of the regression area crosses the approach route, the length of the regression area is the length from the start point of the regression area to the end point of the approach route.

12. The method for calculating train regression information by a radio block center according to claim 9, characterized in that: Calculating the maximum retractable distance according to the length of the retractable area includes adding the length of the retractable area to the configuration distance as the maximum retractable distance.

13. A system for calculating train regression information in a radio block center, characterized in that: The system comprises: A judgment module is used to judge the stage of the train; the judgment module judges the stage of the train, and judges whether the train is in a stage of not entering the degenerative mode or the train has entered the degenerative mode; If the train has entered the regression mode, the following steps are performed: Calculate and update train positions; Determine whether the conditions for updating the train's retrogression information are met, wherein the conditions include whether the train is in retrogression mode, whether the current train position is updated successfully, and whether the train is in a retrogression area; If any of the above conditions is not met, all retreat information is cleared and a no retreat signal is sent to the train; If all the conditions are met, the regression information is updated; After the degenerate information is successfully updated, the information of the degenerate area is written into the degenerate area information and the degenerate supervision information, and sent to the on-board equipment of the train; When the reversal information update fails, all reversal information is cleared and a no-reversal signal is immediately sent to the train; Wherein, updating the regression information comprises the following steps: Get the latest route descriptions and regression information for regression areas; Get n routes in the route description of the regression area, and query whether the routes in all routes meet the regression conditions; Determine whether the train can enter the route; Calculate regression information; The degenerate area line description and degenerate information are saved, and the degenerate area line description is used as the degenerate area line description for checking and updating the degenerate information next time; The step of judging whether the train can enter the route comprises the following steps: Check whether the area where the route is located has been activated. If the disaster is activated, stop the check and the train cannot retreat to the route. At the same time, calculate the retreat information; Check whether there are other trains besides the retreating train on the approach route. If there are other trains, stop checking and the train cannot retreat to the approach route. Meanwhile, calculate the retreat information. Check whether the route changes from locked and idle to occupied. If the route changes from locked and idle to occupied, determine whether the 13s delay check logic is met. If not, stop checking and the train cannot retreat to the route. Meanwhile, calculate retreat information. Check whether there is degradation and other reactions on the route. If there is degradation and other reactions, the train cannot retreat to the route and calculate the retreat information; The regression information calculation module is used to calculate the regression information of the train according to the stage.

14. A system for calculating train regression information in a radio block center according to claim 13, characterized in that: The regression information includes regression area information and regression supervision information; Wherein, the degenerate area information includes the distance between the train and the degenerate area and the length of the degenerate area; The reversal supervision information includes a maximum reversible distance and a reversal mode speed limit.

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