A method and system for monitoring track circuits based on redundant data

Abstract

The present invention discloses a method and system for monitoring track circuits based on redundant data. The method is applied to on-site current monitoring on the track side designed with four-way redundant wiring, and includes: obtaining in real time four-way current data on the track side designed with four-way redundant wiring; based on the redundant wiring design on the track side and current characteristics, combining the four-way current data to determine whether the current on the track side is normal or abnormal; when at least one-way current data is normal, the current compensation method is used to compensate other-way current data with the normal-way current data, repair other-way current data into normal current data, and no alarm is made; when all four-way current data are abnormal, the current on the track side is abnormal, the true value is reported, and an alarm is made; when all four-way current data are normal, the current on the track side is normal, and no alarm is made. The present invention accurately judges the monitoring of track circuits and reduces the number of false alarms generated by the station machine software due to abnormal detection of monitoring equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of real-time monitoring of track circuits by outdoor monitoring devices, and particularly relates to a method and system for monitoring track circuits based on redundant data. Background Art

[0002] Outdoor monitoring devices mainly realize the real-time monitoring of ballast current in track circuits, provide a reference basis for on-site maintenance, can give alarms for faults such as abnormal small track signal current and deteriorated ballast resistance, and achieve rapid positioning of fault points. With the wide application of outdoor monitoring technology, the performance requirements for outdoor monitoring devices are getting higher and higher, and high safety and high reliability have become essential indicators for outdoor monitoring devices.

[0003] On-site, the current of the track circuit is normal, but due to interference and other reasons, the current signal detection of the outdoor monitoring device is abnormal. The microcomputer monitoring software determines that the current of the on-site track circuit is abnormal based on the data uploaded by the outdoor monitoring device, thus prompting an alarm. This alarm is a false alarm caused by a fault in the on-site acquisition device, which affects the normal judgment of the track circuit. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing track circuit monitoring method has problems such as false alarms caused by abnormal current signal detection of outdoor monitoring devices due to interference and other reasons, resulting in inaccurate monitoring judgments and affecting the normal judgment of track circuits. The purpose of the present invention is to provide a method and system for monitoring track circuits based on redundant data. In view of the situation of false alarms in on-site track circuits, the redundant data processing technology of outdoor monitoring devices can shield false alarms caused by abnormal acquisition of acquisition devices, so as to reflect the real situation of on-site track circuits. The present invention accurately monitors and judges track circuits, and prevents the normal passage of on-site trains from being affected due to abnormal acquisition of acquisition devices affecting the judgment of the microcomputer monitoring on the on-site situation.

[0005] The present invention is achieved through the following technical solutions:

[0006] In a first aspect, the present invention provides a method for monitoring a track circuit based on redundant data, which is applied to on-site current monitoring on the track side designed with four-way redundant wiring; the method includes:

[0007] Real-time obtain four-way current data on the track side designed with four-way redundant wiring;

[0008] Based on the redundant wiring design and current characteristics on the track side, combine the four-way current data to judge whether the current on the track side is normal or abnormal;

[0009] When at least one path of current data is normal, the current compensation method is adopted to compensate other paths of current data with the normal path current data, repair other paths of current data into normal current data, shield the current anomalies caused by interference factors, and no alarm is made;

[0010] When all four paths of current data are abnormal, the current on the track side is abnormal, the true value is reported, and an alarm is made;

[0011] When all four paths of current data are normal, the current on the track side is normal and no alarm is made.

[0012] The present invention combines the track side to perform wiring installation and current characteristics based on a four-way redundant wiring design. For all four track currents being normal, no alarm is made; for all four track currents being abnormal, an alarm is made; and for at least one path of current data being normal, which is an occasional current jump caused by on-site interference and other reasons, current compensation is performed and no alarm is made, reducing the number of false alarms generated by the station computer software due to abnormal detection of monitoring equipment.

[0013] Further, the four-way redundant wiring design on the track side is as follows:

[0014] A first short internal connection line and a first short external connection line are provided between the sending end and the first side of the track, and a first long internal connection line and a first long external connection line are provided between the sending end and the second side of the track; wherein, the first short external connection line is a redundant design of the first short internal connection line, and the first long external connection line is a redundant design of the first long internal connection line;

[0015] A second short internal connection line and a second short external connection line are provided between the receiving end and the first side of the track, and a second long internal connection line and a second long external connection line are provided between the receiving end and the second side of the track; wherein, the second short external connection line is a redundant design of the second short internal connection line, and the second long external connection line is a redundant design of the second long internal connection line.

[0016] Further, four paths of current data are obtained through the four-way redundant wiring design on the track side.

[0017] Further, before judging whether the current on the track side is normal or abnormal by combining the four paths of current data, the following steps are also included:

[0018] S1: At the sending end or the receiving end, continuously obtain multiple current data on the track side, and calculate the track current reference value according to the multiple current data;

[0019] S2: Based on the stability discrimination method, discriminate whether the multiple current data in S1 are stable. If they are not stable, judge whether the compensation requirements are met; if they are stable, execute S3;

[0020] S3: Determine whether there is zero-drop data. If there is, do not judge whether the compensation requirement is met, which indicates that the acquisition device is damaged at this time; if not, execute S4;

[0021] S4: Continue to judge whether multiple current data meet the current balance principle. If not, judge whether the compensation requirement is met; if so, execute S5;

[0022] S5: Update the rail current reference value.

[0023] Further, the stability discrimination method in step S2 includes:

[0024] Judge according to the ratio of the difference between the current data in step S1 and the rail current reference value to the rail current reference value: when all ratios are less than 10%, it is considered that the group of data composed of multiple current data is stable; when there is at least one ratio greater than or equal to 10%, it is considered that the group of data composed of multiple current data is unstable.

[0025] Further, the current compensation method includes non-train-passing compensation for the rail and train-passing compensation for the rail, specifically:

[0026] Calculate the jump ratio of each path of current data, compare the four-way jump ratio with the preset jump ratio, and perform non-train-passing compensation for the rail or train-passing compensation for the rail;

[0027] Among them, the jump ratio is the jump ratio of the real-time value of each path of current to the historical value of the current, and the jump ratio = (real-time value of current - historical value of current) / historical value of current.

[0028] Further, the comparison of the four-way jump ratio with the preset jump ratio and the performance of non-train-passing compensation for the rail or train-passing compensation for the rail include:

[0029] Judge the jump ratio of each path of current data; when the jump ratio of one path is less than the first preset value, perform reference selection, and select the path with the smallest jump ratio as the reference;

[0030] Use the proportional relationship of the historical values of each path of current and the current of the selected reference path to compensate the current of the jumping path, and report the compensated current value;

[0031] When the four-way jump ratio is greater than the first preset value, perform train-passing compensation, including:

[0032] Judge whether the difference in jump ratio meets the condition that any one path is less than the second preset value compared with the other three paths. When only one path has a difference in jump ratio greater than the second preset value compared with the other three paths, perform train-passing and commutation reference selection; otherwise, report the real current value;

[0033] The reference selection for train passing and commutation is to select one of the two paths with the smallest jump ratio as the reference, compensate for the current that jumps during train passing and commutation, and report the compensated current value.

[0034] In a second aspect, the present invention further provides a track circuit monitoring system based on redundant data, which is used to implement the above-mentioned track circuit monitoring method based on redundant data; the system includes:

[0035] A redundant wiring module for performing a four-way redundant wiring design on the track side;

[0036] An acquisition module for real-time acquisition of four-way current data on the track side based on the four-way redundant wiring design;

[0037] A judgment module for judging whether the current on the track side is normal or abnormal based on the redundant wiring design and current characteristics on the track side, in combination with the four-way current data;

[0038] The judgment module includes a compensation unit and a non-compensation unit;

[0039] The compensation unit is used to, when at least one path of current data is normal, adopt the current compensation method to compensate other paths of current data through the normal path current data, repair other paths of current data to normal current data, shield the current abnormality caused by interference factors, and not give an alarm;

[0040] The non-compensation unit is used to, when all four paths of current data are abnormal, the current on the track side is abnormal, report the true value, and give an alarm; and when all four paths of current data are normal, the current on the track side is normal and no alarm is given.

[0041] Further, the redundant wiring module includes:

[0042] A first short internal connection line and a first short external connection line are provided on the first side of the track at the sending end, and a first long internal connection line and a first long external connection line are provided on the second side of the track at the sending end; among them, the first short external connection line is a redundant design of the first short internal connection line, and the first long external connection line is a redundant design of the first long internal connection line;

[0043] A second short internal connection line and a second short external connection line are provided on the first side of the track at the receiving end, and a second long internal connection line and a second long external connection line are provided on the second side of the track at the receiving end; among them, the second short external connection line is a redundant design of the second short internal connection line, and the second long external connection line is a redundant design of the second long internal connection line.

[0044] Further, the current data is collected by the outdoor monitoring device at the sending end or the receiving end.

[0045] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0046] The present invention relates to a method and system for monitoring track circuits based on redundant data. The present invention combines the track side to perform wiring installation and current characteristics based on a four-way redundant wiring design. If all four track currents are normal, no alarm is given. If all four track currents are abnormal, an alarm is given. For occasional current jumps caused by on-site interference and other reasons where at least one current data is normal, current compensation is performed and no alarm is given, reducing the number of false alarms generated by the station computer software due to abnormal detection of monitoring equipment. The present invention accurately judges the monitoring of track circuits, preventing the abnormal collection of acquisition equipment from affecting the judgment of the microcomputer monitoring on the on-site situation and resulting in the abnormal passage of on-site trains. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of this application, and do not limit the embodiments of the present invention. In the drawings:

[0048] Figure 1 is a flowchart of a method for monitoring track circuits based on redundant data according to the present invention;

[0049] Figure 2 is a wiring diagram of on-site work according to the present invention;

[0050] Figure 3 is a detailed flowchart of Embodiment 1 of the present invention;

[0051] Figure 4 is a block diagram of a system for monitoring track circuits based on redundant data according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the embodiments and the drawings. The illustrative embodiments of the present invention and their descriptions are only used to explain the present invention and do not limit the present invention.

[0053] Based on the fact that the track circuit current is normal on-site, and the outdoor monitoring equipment detects abnormal current signals due to interference and other reasons. The microcomputer monitoring software determines that the on-site track circuit current is abnormal and gives an alarm based on the data uploaded by the outdoor monitoring equipment. This alarm is a false alarm caused by a fault in the on-site acquisition equipment, affecting the normal judgment of the track circuit. In short, the existing method for monitoring track circuits has problems such as false alarms caused by abnormal detection of current signals due to interference and other reasons in outdoor monitoring equipment, inaccurate monitoring judgment, and affecting the normal judgment of track circuits.

[0054] The present invention designs a method and system for monitoring track circuits based on redundant data, which is applied to the on-site current monitoring of the track side based on a four-way redundant wiring design. The specific on-site work wiring diagram is as Figure 2As shown in the figure. Among them, short internal connection 1 is the first short internal connection line, short external connection 1 is the first short external connection line, long internal connection 1 is the first long internal connection line, and long external connection 1 is the first long external connection line; short internal connection 2 is the second short internal connection line, short external connection 2 is the second short external connection line, long internal connection 2 is the second long internal connection line, and long external connection 2 is the second long external connection line;

[0055] According to the on-site installation principle, the four-way current has the following rules:

[0056] I 长内 +I 长外 =I 短内 +I 短外

[0057] Through the analysis of on-site data, the on-site current data satisfies the above rules. When the current of the main equipment is stable, for the current anomalies detected by the acquisition equipment caused by interference and other problems, the current anomalies can be deduced and compensated through other stable current data.

[0058] Therefore, based on the above principle, the present invention combines the on-site wiring installation and current characteristics on the track side. For the four-way track current that is normal, no alarm is given; for the four-way track current that is abnormal, an alarm is given. For the occasional current jump caused by on-site interference and other reasons where at least one-way current data is normal, the current of other paths can be compensated through the normal path, the current anomalies caused by interference and other reasons can be repaired, and no alarm is given, reducing the number of false alarms generated by the station computer software due to the detection anomalies of the monitoring equipment. The present invention achieves shielding the false alarms caused by the abnormal acquisition of the acquisition equipment and realizes the real-time monitoring of the on-site situation.

[0059] Embodiment 1

[0060] As Figure 1 shown, a method for monitoring track circuits based on redundant data according to the present invention is applied to the on-site current monitoring on the track side based on a four-way redundant wiring design; the method includes:

[0061] Obtain the four-way current data on the track side based on a four-way redundant wiring design in real time;

[0062] Based on the redundant wiring design and current characteristics on the track side, combine the four-way current data to judge whether the track side current is normal or abnormal;

[0063] When at least one-way current data is normal, the current compensation method is adopted to compensate the current data of other paths through the current data of the normal path, repair the current data of other paths to normal current data, shield the current anomalies caused by interference factors, and no alarm is given; allow the train to pass.

[0064] When the four-way current data is all abnormal, the track side current is abnormal, report the true value, and give an alarm; do not allow the train to pass.

[0065] When all four-way current data are normal, the track-side current is normal and no alarm is made; the train is allowed to pass.

[0066] The present invention combines the track side to perform wiring installation and current characteristics based on a four-way redundant wiring design. For all four-way track currents being normal, no alarm is made; for all four-way track currents being abnormal, an alarm is made. For occasional current jumps caused by on-site interference and other reasons where at least one-way current data is normal, current compensation is performed and no alarm is made, reducing the number of false alarms generated by the station machine software due to abnormal detection of monitoring equipment.

[0067] In this embodiment, the four-way redundant wiring design on the track side is as follows:

[0068] A first short internal connection line and a first short external connection line are provided between the sending end and the first side of the track, and a first long internal connection line and a first long external connection line are provided between the sending end and the second side of the track; wherein, the first short external connection line is a redundant design of the first short internal connection line, and the first long external connection line is a redundant design of the first long internal connection line;

[0069] A second short internal connection line and a second short external connection line are provided between the receiving end and the first side of the track, and a second long internal connection line and a second long external connection line are provided between the receiving end and the second side of the track; wherein, the second short external connection line is a redundant design of the second short internal connection line, and the second long external connection line is a redundant design of the second long internal connection line.

[0070] Through the above four-way redundant wiring design on the track side, four-way current data A, B, C, and D are obtained, as Figure 2 shown.

[0071] In this embodiment, before the method combines the four-way current data to judge whether the track-side current is normal or abnormal, it further includes:

[0072] S1: At the sending end or the receiving end, continuously obtain multiple current data on the track side, and calculate the track current reference value according to the multiple current data;

[0073] S2: Based on the stability discrimination method, discriminate whether the multiple current data in S1 are stable. If not stable, judge whether the compensation requirement is met; if stable, execute S3;

[0074] S3: Judge whether there is zero-drop data. If there is, do not judge whether the compensation requirement is met. At this time, it means that the acquisition device is damaged; if not, execute S4;

[0075] S4: Continue to judge whether the multiple current data meet the current balance principle. If not, judge whether the compensation requirement is met; if met, execute S5;

[0076] S5: Update the reference value of the track current.

[0077] In this embodiment, the stability discrimination method in step S2 includes:

[0078] Judge according to the ratio of the difference between the current data in step S1 and the reference value of the track current to the reference value of the track current: when all ratios are less than 10%, it is considered that the group of data composed of multiple current data is stable; when there is at least one ratio greater than or equal to 10%, it is considered that the group of data composed of multiple current data is unstable.

[0079] In this embodiment, the current compensation method includes no-train-on-track compensation and train-on-track compensation, specifically:

[0080] Calculate the jump ratio of each path of current data, compare the four-way jump ratio with the preset jump ratio, and perform no-train-on-track compensation or train-on-track compensation;

[0081] Among them, the jump ratio is the jump ratio of the real-time value of each path of current to the historical value of the current, and the jump ratio = (real-time value of current - historical value of current) / historical value of current.

[0082] In this embodiment, the comparison of the four-way jump ratio with the preset jump ratio to perform no-train-on-track compensation or train-on-track compensation includes:

[0083] Judge the jump ratio of each path of current data; when the jump ratio of one path is less than 10%, perform reference selection, and select the path with the smallest jump ratio as the reference;

[0084] Use the proportional relationship of the historical values of each path of current and the current of the selected reference path to compensate the current of the jumping path, and report the compensated current value;

[0085] When the four-way jump ratios are all greater than 10%, perform train-on-track compensation, including:

[0086] Judge the relationship between the difference of the jump ratios of each path and the second preset value. When only one path has a difference in jump ratio from the other three paths that is greater than the second preset value, perform train-on-track and commutation reference selection; otherwise, report the real current value;

[0087] The train-on-track and commutation reference selection is to select one of the two paths with the smallest jump ratios as the reference, compensate the current that jumps during the train-on-track and commutation process, and report the compensated current value.

[0088] As Figure 3 shown, the specific implementation is as follows:

[0089] Step 1: Collect the current data reported by the acquisition extension (such as the acquisition extension at the sending end). After the number of current data reaches or exceeds 100, proceed to Step 2 to calculate the average value of the most recent 100 current data. If the amount of current data does not meet 100, proceed to Step 7 and output the true value.

[0090] Step 2: Calculate the average value of the most recent 100 current data points and store the average value in a global variable as the current reference value.

[0091] Step 3: If, among the current data reported by the acquisition extension received currently, there is one or more paths where the current code value is less than 10 (current is less than 30 mA), then proceed to Step 7 to directly output the true value without compensating for the zero-crossing data because the zero-crossing may indicate that the device is damaged. When the code values are all greater than or equal to 10, proceed to Step 4 for other condition judgments.

[0092] Step 4: Determine whether the most recent 100 current data points are stable. The judgment basis is the ratio of the difference between each current data and the average value to the average value. If the ratios of all 100 values are less than 10%, the data set is considered stable, and proceed to Step 5 for other condition judgments. If there is one or more values whose ratios are greater than or equal to 10%, the data set is considered unstable, and proceed to Step 8 to determine whether the compensation requirements are met.

[0093] Step 5: Judge the balance of the data. The judgment basis is the current balance principle mentioned above. When the ratio of the data balance difference is less than 15%, the data is considered normal, and proceed to Step 6 for other condition judgments. When the ratio is greater than or equal to 15%, proceed to Step 8 to determine whether the compensation requirements are met.

[0094] Step 6: Update the historical current reference value. If both Step 4 and Step 5 are satisfied, the data is considered normal, and then store the current average value in the current reference value, proceed to Step 7, and report the current real-time value.

[0095] Step 7: Report the current real-time value. At this time, it may or may not be necessary to alarm.

[0096] Step 8: Determine whether the recorded current reference value is valid. If the four-way current historical values are not all zero, the current historical values are considered valid, and proceed to Step 9; if the four-way current historical values are all zero, the current historical values are considered invalid, and proceed to Step 7 to report the current real-time value.

[0097] Step 9: Determine the compensation times of this module. If the compensation times exceed 1 hour (which can be set as needed), no further compensation will be performed, and proceed to Step 7; if the compensation times do not exceed 1 hour, proceed to Step 10 for other condition judgments.

[0098] Step 10: Calculate the jump ratio, which is calculated as the ratio of the difference between the current current value and the historical current value to the historical value. After the calculation is completed, proceed to Step 11.

[0099] Step 11: Judge the jump ratio calculated in Step 10. If one of the channels is less than 10%, then proceed to Step 12 for reference selection; if the jump ratios of all four channels exceed 10%, then proceed to Step 15 for train passing compensation.

[0100] Step 12: Reference selection, select the channel with the smallest jump ratio as the reference.

[0101] Step 13: Use the proportional relationship of the historical current values of each channel and the current of the reference channel selected in Step 12 to compensate the current of the jumping channel, and report the compensated value.

[0102] Step 14: Report the compensated current value.

[0103] Step 15: Judge the jump ratio calculated in Step 10. If the jump ratios of all four channels exceed 10%, then proceed to Step 16 for jump ratio difference calculation; otherwise, proceed to Step 7 to report the true current value.

[0104] Step 16: Judge whether the difference in jump ratios satisfies that the difference between any one channel and the other three channels is less than 5%. When only one channel has a difference in jump ratio with the other three channels greater than 5%, then proceed to Step 17 for train passing and commutation reference selection; otherwise, proceed to Step 7 to report the true current value. For example, when a train passes, the current of each channel will change. The jump ratios of channels A, B, and C may all be 200%, while the jump ratio of channel D is 150%. So the differences in jump ratios between channel A and the other three channels are 0, 0, 50%, the differences in jump ratios between channel B and the other three channels are 0, 0, 50%, the differences in jump ratios between channel C and the other three channels are 0, 0, 50%, then the differences in jump ratios between channel D and the other three channels are 50%, 50%, 50%. In this case, there is a problem with channel D.

[0105] Step 17: Select one of the two channels with the smallest jump ratio as the reference, compensate the current that jumps during the train passing and commutation processes, and report the compensated value.

[0106] In view of the situation of false alarms in the on-site track circuit, the redundant data processing technology of outdoor monitoring equipment can shield the false alarms caused by abnormal acquisition of the acquisition equipment, so as to reflect the true situation of the on-site track circuit. The present invention accurately monitors and judges the track circuit, preventing the abnormal acquisition of the acquisition equipment from affecting the judgment of the microcomputer monitoring on the on-site situation and causing the on-site train to be unable to pass normally.

[0107] Embodiment 2

[0108] Such as Figure 4As shown in the figure, the difference between this embodiment and Embodiment 1 is that this embodiment provides a track circuit monitoring system based on redundant data, which is used to implement a track circuit monitoring method based on redundant data in Embodiment 1; the system includes:

[0109] A redundant wiring module for performing a four-way redundant wiring design on the track side;

[0110] An acquisition module for real-time acquisition of four-way current data on the track side based on the four-way redundant wiring design;

[0111] A judgment module for judging whether the current on the track side is normal or abnormal based on the redundant wiring design and current characteristics on the track side and combining the four-way current data;

[0112] The judgment module includes a compensation unit and a non-compensation unit;

[0113] The compensation unit is used to, when at least one-way current data is normal, adopt the current compensation method to compensate other-way current data with the normal-way current data, repair other-way current data into normal current data, shield the current abnormality caused by interference factors, and not give an alarm;

[0114] The non-compensation unit is used to, when all four-way current data are abnormal, the current on the track side is abnormal, report the true value, and give an alarm; and when all four-way current data are normal, the current on the track side is normal and no alarm is given.

[0115] As a further implementation, the redundant wiring module includes:

[0116] A first short internal connection line and a first short external connection line are arranged on the first side of the track at the sending end, and a first long internal connection line and a first long external connection line are arranged on the second side of the track at the sending end; wherein, the first short external connection line is a redundant design of the first short internal connection line, and the first long external connection line is a redundant design of the first long internal connection line;

[0117] A second short internal connection line and a second short external connection line are arranged on the first side of the track at the receiving end, and a second long internal connection line and a second long external connection line are arranged on the second side of the track at the receiving end; wherein, the second short external connection line is a redundant design of the second short internal connection line, and the second long external connection line is a redundant design of the second long internal connection line.

[0118] As a further implementation, the sending end or the receiving end collects current data through outdoor monitoring equipment.

[0119] Among them, the execution process of each module can be carried out according to the process steps of a track circuit monitoring method based on redundant data described in Embodiment 1, and will not be elaborated one by one in this embodiment.

[0120] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0121] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0122] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0123] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are performed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0124] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only for the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A track circuit monitoring method based on redundant data, characterized in that This method is applied to on-site current monitoring on the track side based on a four-way redundant wiring design; This method includes: Obtaining four-way current data on the track side based on a four-way redundant wiring design in real time; Based on the redundant wiring design and current characteristics on the track side, combining the four-way current data to judge whether the current on the track side is normal or abnormal; When at least one-way current data is normal, the current compensation method is used to compensate other-way current data with the normal-way current data, repair other-way current data to normal current data, shield current anomalies caused by interference factors, and no alarm is given; When all four-way current data are abnormal, the current on the track side is abnormal, the true value is reported, and an alarm is given; When all four-way current data are normal, the current on the track side is normal and no alarm is given; The current compensation method includes non-train-passing compensation and train-passing compensation on the track, specifically: Calculate the jump ratio of each-way current data, compare the four-way jump ratios with a preset jump ratio, and perform non-train-passing compensation or train-passing compensation on the track; Among them, the jump ratio is the jump proportion of the real-time value of each-way current to the historical value of the current, and the jump ratio = (real-time value of current - historical value of current) / historical value of current.

2. The method for monitoring a track circuit based on redundant data according to claim 1, wherein Before this method combines the four-way current data to judge whether the current on the track side is normal or abnormal, it also includes: S1: At the sending end or the receiving end, continuously obtain multiple current data on the track side, and calculate the track current reference value according to the multiple current data; S2: Based on the stable discrimination method, judge whether the multiple current data in S1 are stable. If not, judge whether the compensation requirements are met; if stable, execute S3; S3: Judge whether there is zero-drop data. If so, do not judge whether the compensation requirements are met. This indicates that the acquisition device is damaged; if not, execute S4; S4: Continue to judge whether the multiple current data meet the current balance principle. If not, judge whether the compensation requirements are met; if met, execute S5; S5: Update the track current reference value.

3. The method for monitoring a track circuit based on redundant data according to claim 2, characterized in that, The stable discrimination method in step S2 includes: Judge according to the proportion of the difference between the current data in step S1 and the track current reference value to the track current reference value: when all proportions are less than 10%, it is considered that the group of data composed of multiple current data is stable; when at least one proportion is greater than or equal to 10%, it is considered that the group of data composed of multiple current data is unstable.

4. A method for monitoring track circuits based on redundant data according to claim 1, wherein, The comparison of the four-way jump ratios with the preset jump ratio to perform non-train-passing compensation or train-passing compensation on the track includes: Judge the jump ratio of each-way current data; when the jump ratio of one-way is less than the first preset value, perform reference selection and select the one with the smallest jump ratio as the reference; Use the proportional relationship of the historical values of each-way current and the current of the selected reference path to compensate the current of the jump path, and report the compensated current value; When all four-way jump ratios are greater than the first preset value, perform train-passing compensation, including: Judge whether the difference in jump ratios satisfies that the jump ratio difference between any one path and the other three paths is less than the second preset value. When the jump ratio difference between only one path and the other three paths is greater than the second preset value, perform vehicle passing and commutation reference selection; otherwise, report the true current value. The vehicle passing and commutation reference selection is to select one of the two paths with the smallest jump ratio as the reference, compensate the current that jumps during vehicle passing and commutation, and report the compensated current value.

5. A method for monitoring track circuits based on redundant data according to claim 1, characterized in that, The four-way redundant wiring design on the track side is as follows: A first short internal connection line and a first short external connection line are provided between the sending end and the first side of the track, and a first long internal connection line and a first long external connection line are provided between the sending end and the second side of the track; among them, the first short external connection line is the redundant design of the first short internal connection line, and the first long external connection line is the redundant design of the first long internal connection line. A second short internal connection line and a second short external connection line are provided between the receiving end and the first side of the track, and a second long internal connection line and a second long external connection line are provided between the receiving end and the second side of the track; among them, the second short external connection line is the redundant design of the second short internal connection line, and the second long external connection line is the redundant design of the second long internal connection line.

6. The method for monitoring track circuits based on redundant data according to claim 5, wherein Through the four-way redundant wiring design on the track side, four-way current data is obtained.

7. An track circuit monitoring system based on redundant data, characterized in that This system is used to implement a track circuit monitoring method based on redundant data as described in any one of claims 1 to 6; this system includes: A redundant wiring module for performing a four-way redundant wiring design on the track side; An acquisition module for real-time obtaining of the four-way current data on the track side based on the four-way redundant wiring design; A judgment module for judging whether the current on the track side is normal or abnormal by combining the four-way current data based on the redundant wiring design on the track side and current characteristics; The judgment module includes a compensation unit and a non-compensation unit; The compensation unit is used to, when at least one path of current data is normal, adopt the current compensation method to compensate the current data of other paths through the normal path current data, repair the current data of other paths to normal current data, shield the current abnormality caused by interference factors, and not give an alarm; The non-compensation unit is used to, when all four paths of current data are abnormal, the current on the track side is abnormal, report the true value, and give an alarm; and when all four paths of current data are normal, the current on the track side is normal and no alarm is given.

8. The track circuit monitoring system based on redundant data according to claim 7, characterized in that The redundant wiring module includes: A first short internal connection line and a first short external connection line are provided between the sending end and the first side of the track, and a first long internal connection line and a first long external connection line are provided between the sending end and the second side of the track; among them, the first short external connection line is the redundant design of the first short internal connection line, and the first long external connection line is the redundant design of the first long internal connection line. A second short internal connection line and a second short external connection line are provided between the receiving end and the first side of the track, and a second long internal connection line and a second long external connection line are provided between the receiving end and the second side of the track; among them, the second short external connection line is the redundant design of the second short internal connection line, and the second long external connection line is the redundant design of the second long internal connection line.

9. The track circuit monitoring system based on redundant data according to claim 8, characterized in that, The sending end or the receiving end collects current data through outdoor monitoring equipment.

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