Track circuit outdoor monitoring method and system

Abstract

The present application relates to the field of track circuit detection, in particular to a track circuit outdoor monitoring method and system, first environment data of an outdoor where the track is located is acquired, a section disturbance feature of the track is determined, and an electric signal collection mode for each section in the track is adjusted; according to the electric signal collection state of the section, an electric signal information package is formed, and a transmission node is determined; second environment data of the transmission node is acquired, a communication interference feature of the transmission node is determined, and the transmission node is adjusted to send the electric signal information package to the indoor; the received electric signal information package in the indoor is analyzed, an electric circuit abnormal event occurrence feature of each section is obtained, and thus the signal fault state of the track circuit is predicted and an alarm is notified. The present application can avoid the influence of external environment interference on data monitoring and transmission, and can adjust the data detection and transmission in real time based on the external environment during the track circuit outdoor monitoring, and can improve the stability of the track circuit outdoor monitoring and the fault judgment and identification accuracy.

Description

Technical Field

[0001] The present invention relates to the field of track circuit detection, and in particular to a track circuit outdoor monitoring method and system. Background Art

[0002] The rapid development of railway transportation has placed high demands on the safety, stability, and reliability of track circuits. Track circuit monitoring primarily involves indoor and outdoor circuit monitoring. For indoor circuit monitoring, mature and comprehensive technical solutions exist. By deploying IoT-connected sensors indoors, online indoor circuit parameter monitoring can be achieved. However, outdoor circuit monitoring scenarios are constrained by factors such as railway operations and outdoor weather, leading to issues such as insufficient real-time monitoring, incomplete monitoring, and low fault diagnosis accuracy.

[0003] In order to achieve real-time and accurate outdoor detection of track circuits, invention patent CN112783082A discloses an outdoor monitoring and diagnosis method and test platform for interval track circuits, which is mainly aimed at the ZPW-2000 interval track circuit scenario, using standard outdoor acquisition equipment for outdoor data acquisition, and using the interface protocol display platform to connect the vehicle passing signal relay control module for data display. However, the above-mentioned patent only performs outdoor monitoring on specific types of track intervals and cannot be effectively extended to all track circuit scenarios. At present, there is no effective monitoring and stabilization operation for interference such as lightning strikes that may exist in outdoor circuit scenarios, and it is impossible to reduce the probability of monitoring errors and fault judgment errors that may be caused by the outdoor environment. Therefore, how to stabilize data acquisition and transmission methods in response to the influence of outdoor environmental factors on track circuits is of great significance for improving the real-time monitoring and fault judgment and identification accuracy. Summary of the Invention

[0004] Considering that track circuit outdoor monitoring is exposed to the outdoor environment, in order to prevent data monitoring and transmission from being affected by external environmental interference, during the track circuit outdoor monitoring, data detection and transmission are adjusted in real time based on the external environment, thereby improving the stability of track circuit outdoor monitoring and the accuracy of fault diagnosis and identification. The present invention provides a track circuit outdoor monitoring method, which includes the following steps:

[0005] S100: Acquire first environmental data outdoors where a track is located, thereby determining a section disturbance characteristic of the track, and thereby adjusting an electrical signal acquisition mode for each section of the track;

[0006] S200: generating an electrical signal information packet based on the electrical signal collection status of each segment; and determining a transmission node based on information characteristics of the electrical signal information packets of all segments;

[0007] S300: Acquire second environment data corresponding to the transmission node to determine the communication interference characteristics of the transmission node, thereby adjusting the state of the transmission node sending electrical signal information packets to the room;

[0008] S400: Analyze the electrical signal information packets received indoors to obtain the circuit abnormality event characteristics of each section; predict the signal fault status of the track circuit based on the circuit abnormality event characteristics of all sections, and issue an alarm notification.

[0009] Preferably, in S100, first environmental data of an outdoor area where the track is located is obtained to determine the section disturbance characteristics of the track, thereby adjusting the electrical signal acquisition mode for each section of the track, specifically:

[0010] Determine the characteristic position of each section of the track based on the track's outdoor spatial distribution path, thereby obtaining the outdoor ambient temperature and humidity data at the characteristic position; extract temperature and humidity variation characteristics from the ambient temperature and humidity data, thereby determining the circuit disturbance noise variation characteristics of each section;

[0011] The noise intensity time variation characteristics of the circuit disturbance noise are analyzed to estimate the distribution of the signal flooding period of the circuit disturbance noise on the sensor devices arranged in the section; and the electrical signal acquisition frequency of each sensor device in the section is adjusted according to the signal flooding period distribution.

[0012] Preferably, in S200, an electrical signal information packet is formed according to the electrical signal collection status of each segment; and a transmission node is determined according to information characteristics of the electrical signal information packets of all segments, specifically:

[0013] Monitor the time domain distribution of the electrical signal acquisition data of all sensor devices in each section to determine whether all sensor devices generate valid electrical signal data sets that match in the time domain, and then integrate the valid electrical signal data sets into electrical signal information packets;

[0014] The amount of queue information formed by the respective electrical signal information packets of all segments is obtained, compared with the available communication capacity of the transmission node, and the transmission node suitable for transmitting the electrical signal information packet is determined.

[0015] Preferably, in S300, the second environment data corresponding to the transmission node is obtained to determine the communication interference characteristics of the transmission node, thereby adjusting the state of the transmission node sending the electrical signal information packet to the room, specifically:

[0016] Acquiring external electromagnetic effect data of the environment in which the transmission node is located; wherein the external electromagnetic effect data includes electromagnetic effect data from external electrical equipment and / or natural phenomena; extracting intensity and frequency data of external strong electric interference from the external electromagnetic effect data; and determining the intensity and duration of communication interference experienced by the transmission node based on the intensity and frequency data of the external strong electric interference;

[0017] According to the communication interference intensity and duration, the communication packet loss characteristics of the communication link corresponding to the transmission node are estimated, so as to adjust the sending flow and / or sending period of the electrical signal information packet of the transmission node to the room.

[0018] Preferably, in S400, the electrical signal information packets received indoors are analyzed to obtain the circuit abnormality event characteristics of each section; based on the circuit abnormality event characteristics of all sections, the signal fault state of the track circuit is predicted, and an alarm notification is performed, specifically:

[0019] Samples of electrical signal information packets received indoors are collected and preprocessed to obtain a track circuit operation dataset; the track circuit operation dataset is processed using a prediction model to obtain circuit abnormality event occurrence characteristics for each section; wherein the circuit abnormality event occurrence characteristics include the location and type of circuit abnormality;

[0020] According to the track circuit signal paths of all sections, the characteristics of all circuit abnormal events are integrated to determine the signal transmission interruption nodes of the track circuits of all sections, so as to predict the location and time of the signal failure of the track, and send an alarm notification message to the platform end.

[0021] In another aspect, the present invention provides an outdoor monitoring system for track circuits, the system comprising the following modules:

[0022] a section disturbance determination module, configured to obtain first environmental data outside the room where the track is located, and thereby determine section disturbance characteristics of the track;

[0023] A signal acquisition adjustment module, used for adjusting the electrical signal acquisition mode of each section under the track;

[0024] An information packet generation module, configured to generate an electrical signal information packet based on the electrical signal acquisition status of each section;

[0025] A transmission node determination module, configured to determine a transmission node based on information characteristics of the electrical signal information packets of all segments;

[0026] a communication interference determination module, configured to obtain second environment data corresponding to the transmission node, thereby determining a communication interference feature of the transmission node;

[0027] A signal packet sending module, used for adjusting the state of the transmission node sending the electrical signal information packet to the room;

[0028] The circuit anomaly determination module is used to analyze the electrical signal information packets received indoors to obtain the characteristics of circuit anomaly events in each section;

[0029] The fault prediction module is used to predict the signal fault status of the track circuit based on the characteristics of circuit abnormal events in all sections, so as to issue an alarm notification.

[0030] Preferably, the section disturbance determination module is used to obtain first environmental data outside the room where the track is located, thereby determining the section disturbance characteristics of the track, including:

[0031] Determine the characteristic position of each section of the track based on the track's outdoor spatial distribution path, thereby obtaining the outdoor ambient temperature and humidity data at the characteristic position; extract temperature and humidity variation characteristics from the ambient temperature and humidity data, thereby determining the circuit disturbance noise variation characteristics of each section;

[0032] The signal acquisition adjustment module is used to adjust the electrical signal acquisition mode of each section under the track, including:

[0033] The noise intensity time variation characteristics of the circuit disturbance noise are analyzed to estimate the distribution of the signal flooding period of the circuit disturbance noise on the sensor devices arranged in the section; and the electrical signal acquisition frequency of each sensor device in the section is adjusted according to the signal flooding period distribution.

[0034] Preferably, the information packet generation module is used to form an electrical signal information packet according to the electrical signal collection status of each section, including:

[0035] Monitor the time domain distribution of the electrical signal acquisition data of all sensor devices in each section to determine whether all sensor devices generate valid electrical signal data sets that match in the time domain, and then integrate the valid electrical signal data sets into electrical signal information packets;

[0036] The transmission node determination module is used to determine the transmission node according to the information characteristics of the electrical signal information packets of all sections, including:

[0037] The amount of queue information formed by the respective electrical signal information packets of all segments is obtained, compared with the available communication capacity of the transmission node, and the transmission node suitable for transmitting the electrical signal information packet is determined.

[0038] Preferably, the communication interference determination module is configured to obtain second environment data corresponding to the transmission node to determine the communication interference characteristics of the transmission node, including:

[0039] Acquiring external electromagnetic effect data of the environment in which the transmission node is located; wherein the external electromagnetic effect data includes electromagnetic effect data from external electrical equipment and / or natural phenomena; extracting intensity and frequency data of external strong electric interference from the external electromagnetic effect data; and determining the intensity and duration of communication interference experienced by the transmission node based on the intensity and frequency data of the external strong electric interference;

[0040] The signal packet sending module is used to adjust the state of the transmission node sending the electrical signal information packet to the room, including:

[0041] According to the communication interference intensity and duration, the communication packet loss characteristics of the communication link corresponding to the transmission node are estimated, so as to adjust the sending flow and / or sending period of the electrical signal information packet of the transmission node to the room.

[0042] Preferably, the circuit anomaly determination module is used to analyze the electrical signal information packets received indoors to obtain the characteristics of circuit anomaly events in each section, including:

[0043] Samples of electrical signal information packets received indoors are collected and preprocessed to obtain a track circuit operation dataset; the track circuit operation dataset is processed using a prediction model to obtain circuit abnormality event occurrence characteristics for each section; wherein the circuit abnormality event occurrence characteristics include the location and type of circuit abnormality;

[0044] The fault prediction module is used to predict the signal fault status of the track circuit based on the characteristics of circuit abnormal events in all sections, and to issue an alarm notification, including:

[0045] According to the track circuit signal paths of all sections, the characteristics of all circuit abnormal events are integrated to determine the signal transmission interruption nodes of the track circuits of all sections, so as to predict the location and time of the signal failure of the track, and send an alarm notification message to the platform end.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] The present invention provides an outdoor track circuit monitoring method and system that obtains first environmental data from the outdoor area where the track is located, determines the disturbance characteristics of the track sections, and adjusts the electrical signal acquisition mode for each section within the track. Based on the electrical signal acquisition status of the sections, an electrical signal information packet is formed and a transmission node is determined. Second environmental data from the transmission node is obtained to determine the communication interference characteristics of the transmission node, and the transmission status of the transmission node to the indoor area is adjusted accordingly. The electrical signal information packets received indoors are analyzed to obtain the circuit abnormality event characteristics for each section, thereby predicting the signal fault status of the track circuit and issuing an alarm. The present invention can prevent data monitoring and transmission from being affected by external environmental interference. During outdoor track circuit monitoring, data detection and transmission are adjusted in real time based on the external environment, thereby improving the stability of outdoor track circuit monitoring and the accuracy of fault diagnosis and identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. Among them:

[0049] Figure 1 The present invention provides a flow chart of the outdoor monitoring method for track circuits.

[0050] Figure 2 It is the outdoor monitoring layout of track circuit.

[0051] Figure 3 This is a diagram for obtaining the first environmental data.

[0052] Figure 4 It is a diagram of the analysis process of electrical signal information packets.

[0053] Figure 5 It is a structural diagram of the track circuit outdoor monitoring system provided by the present invention. DETAILED DESCRIPTION

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0055] The terms "comprise," "comprising," and "having," and any variations thereof, as used herein, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0056] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0057] See also Figure 1 As shown, the present invention provides a track circuit outdoor monitoring method, which includes the following steps:

[0058] S100: Acquire first environmental data outdoors where the track is located, thereby determining the disturbance characteristics of the track section, and thereby adjusting the electrical signal acquisition mode for each section of the track;

[0059] S200: generating an electrical signal information packet based on the electrical signal collection status of each segment; and determining a transmission node based on information characteristics of the electrical signal information packets of all segments;

[0060] S300: Acquire second environment data corresponding to the transmission node to determine the communication interference characteristics of the transmission node, thereby adjusting the state of the transmission node sending electrical signal information packets to the room;

[0061] S400: Analyze the electrical signal information packets received indoors to obtain the characteristics of circuit abnormality events in each section; predict the signal fault status of the track circuit based on the characteristics of circuit abnormality events in all sections, and issue an alarm notification.

[0062] Furthermore, in S100, first environmental data of the outdoor area where the track is located is obtained to determine the section disturbance characteristics of the track, thereby adjusting the electrical signal acquisition mode for each section under the track, specifically:

[0063] Based on the track's outdoor spatial distribution path, the characteristic location of each track section is determined, thereby obtaining the outdoor ambient temperature and humidity data at the characteristic location. The temperature and humidity variation characteristics are extracted from the ambient temperature and humidity data to determine the circuit disturbance noise variation characteristics of each section.

[0064] The noise intensity time variation characteristics of the circuit disturbance noise are analyzed to estimate the distribution of the signal flooding period of the circuit disturbance noise on the sensor devices arranged in the section; according to the signal flooding period distribution, the electrical signal acquisition frequency of each sensor device in the section is adjusted.

[0065] See also Figure 2 The layout of outdoor monitoring of track circuits mainly includes independently arranging a number of sensor devices for each section of the track, and all sensor devices under each section are connected to the transmission transfer station through lines. The sensor devices under each section may include but are not limited to current sensors, voltage sensors, temperature sensors, and humidity sensors; among them, the current sensors and voltage sensors respectively detect electrical signals such as the current signal and voltage signal of the track circuit, which are used to characterize the real-time operating status of the track circuit; the temperature sensors and humidity sensors are used to detect the temperature and humidity of the outdoor environment in each section. The track circuit is exposed to the outdoor environment and is easily affected by factors such as the outdoor environment temperature and humidity, which may cause the internal components of the track circuit to overheat or become damp and unable to work normally and stably, resulting in noise in the track circuit of the corresponding section and disturbances to the current and / or voltage signals during the operation of the track circuit. In severe cases, these disturbances may completely overwhelm the normal current and / or voltage signals of the track circuit. Considering that when a track circuit fails, the current and / or voltage signals during the operation of the track circuit will show abnormal fluctuations and noise interference. If the disturbance caused by overheating or moisture in the internal components of the track circuit covers the abnormal fluctuations and noise interference of the above-mentioned current and / or voltage signals, it will be impossible to accurately determine the operation failure of the track circuit based on the above-mentioned abnormal fluctuations and noise interference.

[0066] In order to reduce the superimposed disturbance caused by outdoor ambient temperature and humidity on the current and / or voltage monitoring of the track circuit, it is necessary to reduce the influence of the external ambient temperature and humidity during the current and / or voltage monitoring period to avoid the circuit disturbance caused by the outdoor ambient temperature and humidity on the track circuit being superimposed on the current and / or voltage signals. Figure 3Given the large spatial extent of the track, the temperature and humidity of the outdoor environments located in different track sections vary significantly. To accurately obtain temperature and humidity data for the outdoor environment within each track section, the characteristic locations of each track section are first determined based on the track's spatial distribution path outdoors (e.g., an extended track). These characteristic locations can be, but are not limited to, the locations of sleepers in a specific order within each section. Temperature and humidity sensors located at these characteristic locations are then used to continuously collect temperature and humidity data for the outdoor environment at these characteristic locations. Temporal variations in these temperature and humidity data are then identified to determine the temporal variations in the temperature and humidity of the outdoor environment at these characteristic locations. Based on the noise generation characteristics of components within the track circuit under temperature and humidity variations, the circuit disturbance noise variation characteristics for each section are determined. Generally speaking, the relationship between the noise generated by each type of component within the track circuit due to changes in ambient temperature and humidity is known. The greater the change in ambient temperature and / or humidity, the greater the noise generated by the component. The circuit disturbance noise variation characteristics for each section can be the summed sum of the disturbance noise generated by all components within the track circuit within that section. The circuit disturbance noise variation characteristics are then analyzed for temporal variations in noise intensity to estimate the distribution of signal flooding periods caused by the circuit disturbance noise for the sensing devices located within the segment. This signal flooding period distribution refers to the distribution of periods corresponding to when the circuit disturbance noise intensity is less than the noise intensity distinguishable by the current sensor and / or voltage sensor, or other sensing devices located within the segment. It is understood that during this signal flooding period distribution, the circuit disturbance noise is mixed with the detection signals generated by the current sensor and / or voltage sensor, or other sensing devices, and cannot be distinguished and eliminated by the sensing devices. Based on this signal flooding period distribution, the acquisition frequency of electrical signals, such as current and voltage, for each current sensor and each voltage sensor, or other sensing device within the segment, is adjusted to minimize overlap between the electrical signal acquisition period of each current sensor and each voltage sensor and the signal flooding period distribution. This reduces the overlap in the time domain between the electrical signal acquisition period and the signal flooding period distribution, preventing the sensing devices from superimposing the circuit disturbance noise during the electrical signal acquisition period, and thereby reducing the interference of the circuit disturbance noise at the source of the electrical signal acquisition.

[0067] Furthermore, in S200, an electrical signal information packet is formed according to the electrical signal collection status of each segment; and a transmission node is determined according to the information characteristics of the electrical signal information packets of all segments, specifically:

[0068] Monitor the time domain distribution of the electrical signal acquisition data of all sensor devices in each section to determine whether all sensor devices generate valid electrical signal data sets that match in the time domain, and then integrate the valid electrical signal data sets into electrical signal information packets;

[0069] The amount of queue information formed by the electrical signal information packets of all segments is obtained, compared with the available communication capacity of the transmission nodes, and the transmission node suitable for transmitting the electrical signal information packets is determined.

[0070] The above analysis shows that when a fault occurs in the track circuit corresponding to a section, the current and voltage signals detected in the track circuit in that section will experience abnormal fluctuations and noise interference. By analyzing these abnormal fluctuations and noise interference, the track circuit fault can be diagnosed and located. To diagnose and locate track circuit faults in real time, electrical signals such as current and voltage detected in the section's track circuit need to be collected, uploaded, and analyzed. In actual fault diagnosis and location, using only a single electrical signal, such as current or voltage, may not be able to fully and accurately diagnose track circuit faults. To this end, it is necessary to comprehensively and fully collect electrical signal data detected by different types of sensing equipment and ensure that the collected electrical signal data matches in the time domain (that is, all collected electrical signal data can complete the corresponding preset time interval, and there are no discontinuities or gaps in the electrical signal data in the time domain). Specifically, the time domain distribution state of the electrical signal acquisition data of all sensor devices in each section is monitored (i.e., the corresponding generation time distribution state of the electrical signal acquisition data of each sensor device), and the time domain distribution state of the electrical signal acquisition data of all sensor devices is compared. If the electrical signal data generated by all sensor devices can correspond to the same time interval, then it is determined that all sensor devices can generate a valid electrical signal data set that matches in the time domain; otherwise, it is determined that all sensor devices cannot generate a valid electrical signal data set that matches in the time domain, and the electrical signal data generated by all sensor devices in the same time interval is regarded as a valid electrical signal data set, and the valid electrical signal data set is packaged and integrated into an electrical signal information package to ensure that the valid electrical signal data set is fully uploaded to the indoor processing and analysis. In order to ensure that the electrical signal information package collected by outdoor monitoring is quickly and completely uploaded to the indoor processing and analysis, multiple wireless transmission nodes are set up indoors and outdoors, and each wireless transmission node can independently transmit the electrical signal information package from the outdoor to the indoor. The available communication capacity of each wireless transmission node is not the same. The queue information volume formed by the electrical signal information packets of all segments is obtained, and the available communication capacity of each transmission node is compared. One of the transmission nodes that is suitable for transmitting the electrical signal information packets is selected, wherein the available communication capacity of the above-selected transmission node is greater than the queue information volume formed by the electrical signal information packets, thereby ensuring that the electrical signal information packets are efficiently and safely transmitted from outdoor to indoor.

[0071] Furthermore, in S300, the second environment data corresponding to the transmission node is obtained to determine the communication interference characteristics of the transmission node, thereby adjusting the state of the transmission node sending the electrical signal information packet to the room, specifically:

[0072] Acquire external electromagnetic effect data of the environment in which the transmission node is located; wherein the external electromagnetic effect data includes electromagnetic effect data from external electrical equipment and / or natural phenomena; extract intensity and frequency data of external strong electric interference from the external electromagnetic effect data; and determine the intensity and duration of communication interference suffered by the transmission node based on the intensity and frequency data of the external strong electric interference;

[0073] According to the communication interference intensity and duration, the communication packet loss characteristics of the communication link corresponding to the transmission node are estimated, so as to adjust the transmission flow and / or transmission time period of the transmission node to the indoor electrical signal information packet.

[0074] Data is transmitted between indoors and outdoors through transmission nodes, and the transmission nodes are connected to cable lines. Cable lines are easily interfered with by external electromagnetic effects and cannot transmit data normally. The external electromagnetic interference to the transmission node mainly comes from electromagnetic effects generated by other strong electrical equipment on the track and / or natural phenomena such as thunderstorms. To this end, the electromagnetic effect data from external electrical equipment and / or natural phenomena in the environment where the transmission node is located is first obtained, and the above-mentioned external electromagnetic effect data is identified to extract the intensity and frequency data of the external strong electrical interference. Combined with the range of the interference area of ​​the cable line connected to the transmission node under external electromagnetic effects and the intensity and frequency data of the above-mentioned external strong electrical interference, the actual communication interference intensity and duration of the transmission node are determined; wherein, the above-mentioned communication interference intensity refers to the communication interference actually received by the transmission node being greater than the intensity of the interference it can withstand, and the above-mentioned duration refers to the duration of the communication interference with the above-mentioned intensity. According to the above-mentioned communication interference intensity and duration and combined with the current data transmission rate of the transmission node, the communication packet loss rate of the communication link corresponding to the transmission node is estimated; when the above-mentioned communication packet loss rate is greater than the preset packet loss rate threshold, the transmission node's sending flow and / or sending period of the electrical signal information packet to the indoor room is adjusted, such as reducing the unit time sending flow of the electrical signal information packet to the indoor room and / or shortening the electrical signal information packet sending period in the above-mentioned duration, so as to reduce the external electromagnetic interference and the reliability and efficiency of the transmission of the electrical signal information packet from the outdoor to the indoor room.

[0075] Furthermore, in S400, the electrical signal information packets received indoors are analyzed to obtain the circuit abnormality event characteristics of each section; based on the circuit abnormality event characteristics of all sections, the signal fault status of the track circuit is predicted, and an alarm notification is issued, specifically:

[0076] Samples of electrical signal packets received indoors are collected and preprocessed to obtain a track circuit operation dataset. This dataset is then processed using a prediction model to obtain circuit anomaly event characteristics for each section. These characteristics include the location and type of circuit anomaly.

[0077] Based on the track circuit signal paths of all sections, the characteristics of all circuit abnormal events are integrated to determine the signal transmission interruption nodes of the track circuits of all sections, thereby predicting the location and time of the signal failure of the track, and sending an alarm notification message to the platform.

[0078] After the indoor space receives the complete electric signal information packet transmitted from the outdoor space, it decompresses the electric signal information packet to obtain the electric signal data; then the above electric signal data is screened and collected and pre-processed by Kalman filter to obtain the track circuit operation data set. Figure 4 , construct as Figure 4 The prediction model is used to process the track circuit operation data set to obtain the circuit anomaly location and circuit anomaly type in each section. Figure 4 The prediction model's processing of the input track circuit operation dataset has been fully demonstrated, so it will not be reiterated here. Based on the track circuit signal transmission paths in all sections, the model determines the nodes where the track circuit signal transmission is interrupted in all sections during track operation. This allows the prediction of the location and time of the track signal failure. An alarm notification message containing the location and time of the signal failure is then sent to the platform (i.e., the service platform), improving the accuracy of fault identification.

[0079] See also Figure 5 As shown, the present invention provides an outdoor monitoring system for track circuits, which includes the following modules:

[0080] a section disturbance determination module, configured to obtain first environmental data outside the room where the track is located, and thereby determine section disturbance characteristics of the track;

[0081] Signal acquisition adjustment module, used to adjust the electrical signal acquisition mode for each section of the track;

[0082] An information packet generation module, configured to generate an electrical signal information packet based on the electrical signal acquisition status of each section;

[0083] A transmission node determination module, configured to determine a transmission node based on information characteristics of the electrical signal information packets of all segments;

[0084] a communication interference determination module, configured to obtain second environment data corresponding to the transmission node, thereby determining a communication interference characteristic of the transmission node;

[0085] The signal packet sending module is used to adjust the state of the transmission node sending the electrical signal information packet to the indoor room;

[0086] The circuit anomaly determination module is used to analyze the electrical signal information packets received indoors to obtain the characteristics of circuit anomaly events in each section;

[0087] A fault prediction module is configured to predict a signal fault state of the track circuit according to the circuit abnormal event occurrence characteristics of all the sections, and to give an alarm notification.

[0088] Further, a section disturbance determination module is configured to obtain first environmental data of an outdoor environment where the track is located, to determine section disturbance characteristics of the track, including:

[0089] According to the spatial distribution path of the track in the outdoor environment, the feature position of each section of the track is determined, and the environmental temperature and humidity data of the feature position in the outdoor environment are obtained; the temperature and humidity variation characteristics are extracted from the environmental temperature and humidity data, to determine the circuit disturbance noise variation characteristics of each section.

[0090] A signal collection adjustment module is configured to adjust the electric signal collection mode of each section of the track, including:

[0091] The circuit disturbance noise variation characteristics are analyzed for noise intensity time variation, to estimate the signal drowning time period distribution of the circuit disturbance noise to the layout sensing device in the section; according to the signal drowning time period distribution, the electric signal collection frequency of each sensing device in the section is adjusted.

[0092] Further, an information packet generation module is configured to form an electric signal information packet according to the electric signal collection state of each section, including:

[0093] The time domain distribution state of the electric signal collection data of all the sensing devices in each section is monitored, to determine whether all the sensing devices generate a matched effective electric signal data set in the time domain, so as to integrate the effective electric signal data set to form an electric signal information packet;

[0094] A transmission node determination module is configured to determine a transmission node according to the information characteristics of the electric signal information packet of each section, including:

[0095] The queue information amount formed by the electric signal information packet of each section is obtained, and compared with the available communication capacity of the transmission node, to determine a transmission node suitable for transmitting the electric signal information packet.

[0096] Further, a communication interference determination module is configured to obtain second environmental data corresponding to the transmission node, to determine the communication interference characteristics of the transmission node, including:

[0097] The external electromagnetic action data of the environment where the transmission node is located is obtained; wherein the external electromagnetic action data includes electromagnetic action data from external electrical equipment and / or natural phenomena; the intensity and frequency data of external strong electric interference are extracted from the external electromagnetic action data; according to the intensity and frequency data of the external strong electric interference, the communication interference intensity and duration of the transmission node are determined.

[0098] The signal packet sending module is used to adjust the state of the transmission node sending electrical signal information packets to the indoor area, including:

[0099] According to the communication interference intensity and duration, the communication packet loss characteristics of the communication link corresponding to the transmission node are estimated, so as to adjust the transmission flow and / or transmission time period of the transmission node to the indoor electrical signal information packet.

[0100] Furthermore, the circuit anomaly determination module is used to analyze the electrical signal information packets received indoors to obtain the characteristics of circuit anomaly events in each section, including:

[0101] Samples of electrical signal packets received indoors are collected and preprocessed to obtain a track circuit operation dataset. This dataset is then processed using a prediction model to obtain circuit anomaly event characteristics for each section. These characteristics include the location and type of circuit anomaly.

[0102] The fault prediction module is used to predict the signal fault status of the track circuit based on the characteristics of circuit abnormal events in all sections, and to issue alarm notifications, including:

[0103] Based on the track circuit signal paths of all sections, the characteristics of all circuit abnormal events are integrated to determine the signal transmission interruption nodes of the track circuits of all sections, thereby predicting the location and time of the signal failure of the track, and sending an alarm notification message to the platform.

[0104] The operation and effects of the track circuit outdoor monitoring system of the present invention correspond to and are consistent with those of the above-mentioned track circuit outdoor monitoring method, and the track circuit outdoor monitoring system will not be described again here.

[0105] Through the description of the above embodiments, those skilled in the art will clearly understand that each embodiment can be implemented using the necessary general-purpose hardware platform, or of course, can be implemented through a combination of hardware and software. Based on this understanding, the essence of the above technical solution, or the portion that contributes to the prior art, can be embodied in the form of a computer product. The present invention 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.) containing computer-usable program code.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it, and other embodiments may also be used. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for outdoor monitoring of track circuits, characterized in that: The method comprises the following steps: S100: Acquire first environmental data outdoors where the track is located, and use the data to determine the disturbance characteristics of the track section, thereby adjusting the electrical signal acquisition mode for each section of the track, specifically: Determine the characteristic position of each section of the track based on the track's outdoor spatial distribution path, thereby obtaining the outdoor ambient temperature and humidity data at the characteristic position; extract temperature and humidity variation characteristics from the ambient temperature and humidity data, thereby determining the circuit disturbance noise variation characteristics of each section; performing a noise intensity time variation analysis on the circuit disturbance noise variation characteristics to estimate the distribution of time periods during which the circuit disturbance noise floods the signals of the sensing devices arranged in the section; and adjusting the electrical signal acquisition frequency of each sensing device in the section based on the signal flooding time distribution; S200: generating an electrical signal information packet based on the electrical signal collection status of each segment; and determining a transmission node based on information characteristics of the electrical signal information packets of all segments; S300: Acquire second environment data corresponding to the transmission node to determine the communication interference characteristics of the transmission node, thereby adjusting the state of the transmission node sending electrical signal information packets to the room, specifically: Acquiring external electromagnetic effect data of the environment in which the transmission node is located; wherein the external electromagnetic effect data includes electromagnetic effect data from external electrical equipment and / or natural phenomena; extracting intensity and frequency data of external strong electric interference from the external electromagnetic effect data; and determining the intensity and duration of communication interference experienced by the transmission node based on the intensity and frequency data of the external strong electric interference; estimating the communication packet loss characteristics of the communication link corresponding to the transmission node according to the communication interference intensity and duration, thereby adjusting the transmission flow and / or transmission time period of the electrical signal information packets sent by the transmission node to the indoor space; S400: Analyze the electrical signal information packets received indoors to obtain the circuit abnormality event characteristics of each section; predict the signal fault status of the track circuit based on the circuit abnormality event characteristics of all sections, and issue an alarm notification.

2. The method according to claim 1, characterized in that In S200, an electrical signal information packet is formed based on the electrical signal collection status of each segment; and a transmission node is determined based on the information characteristics of the electrical signal information packets of all segments, specifically: Monitor the time domain distribution of the electrical signal acquisition data of all sensor devices in each section to determine whether all sensor devices generate valid electrical signal data sets that match in the time domain, and then integrate the valid electrical signal data sets into electrical signal information packets; The amount of queue information formed by the respective electrical signal information packets of all segments is obtained, compared with the available communication capacity of the transmission node, and the transmission node suitable for transmitting the electrical signal information packet is determined.

3. The method according to claim 1, characterized in that In S400, the electrical signal information packets received indoors are analyzed to obtain the circuit abnormality event characteristics of each section; based on the circuit abnormality event characteristics of all sections, the signal fault status of the track circuit is predicted, and an alarm notification is issued, specifically: Samples of electrical signal information packets received indoors are collected and preprocessed to obtain a track circuit operation dataset; the track circuit operation dataset is processed using a prediction model to obtain circuit abnormality event occurrence characteristics for each section; wherein the circuit abnormality event occurrence characteristics include the location and type of circuit abnormality; According to the track circuit signal paths of all sections, the characteristics of all circuit abnormal events are integrated to determine the signal transmission interruption nodes of the track circuits of all sections, so as to predict the location and time of the signal failure of the track, and send an alarm notification message to the platform end.

4. Track circuit outdoor monitoring system, characterized by: The system includes the following modules: A section disturbance determination module is configured to obtain first environmental data outdoors where the track is located, thereby determining the section disturbance characteristics of the track, including: determining a characteristic position of each section of the track based on the spatial distribution path of the track outdoors, thereby obtaining ambient temperature and humidity data outdoors where the characteristic position is located; and extracting temperature and humidity variation characteristics from the ambient temperature and humidity data, thereby determining the circuit disturbance noise variation characteristics of each section; a signal acquisition adjustment module, configured to adjust the electrical signal acquisition mode for each section of the track, including: performing a noise intensity time variation analysis on the circuit disturbance noise variation characteristics, estimating the distribution of periods of signal flooding caused by the circuit disturbance noise on the sensing devices arranged in the section; and adjusting the electrical signal acquisition frequency of each sensing device in the section based on the signal flooding period distribution; An information packet generation module, configured to generate an electrical signal information packet based on the electrical signal acquisition status of each section; A transmission node determination module, configured to determine a transmission node based on information characteristics of the electrical signal information packets of all segments; A communication interference determination module, the communication interference determination module is used to obtain second environmental data corresponding to the transmission node to determine the communication interference characteristics of the transmission node, including: obtaining external electromagnetic effect data of the environment in which the transmission node is located; wherein the external electromagnetic effect data includes electromagnetic effect data from external electrical equipment and / or natural phenomena; extracting intensity and frequency data of external strong electric interference from the external electromagnetic effect data; and determining the intensity and duration of the communication interference suffered by the transmission node based on the intensity and frequency data of the external strong electric interference; The signal packet sending module is used to adjust the state of the transmission node sending the electrical signal information packet to the indoor area, including: estimating the communication packet loss characteristics of the communication link corresponding to the transmission node according to the communication interference intensity and duration, thereby adjusting the transmission flow and / or transmission time period of the electrical signal information packets sent by the transmission node to the indoor space; The circuit anomaly determination module is used to analyze the electrical signal information packets received indoors to obtain the characteristics of circuit anomaly events in each section; The fault prediction module is used to predict the signal fault status of the track circuit based on the characteristics of circuit abnormal events in all sections, so as to issue an alarm notification.

5. The system according to claim 4, characterized in that The information packet generation module is used to form an electrical signal information packet according to the electrical signal collection status of each section, including: Monitor the time domain distribution of the electrical signal acquisition data of all sensor devices in each section to determine whether all sensor devices generate valid electrical signal data sets that match in the time domain, and then integrate the valid electrical signal data sets into electrical signal information packets; The transmission node determination module is used to determine the transmission node according to the information characteristics of the electrical signal information packets of all sections, including: The amount of queue information formed by the respective electrical signal information packets of all segments is obtained, compared with the available communication capacity of the transmission node, and the transmission node suitable for transmitting the electrical signal information packet is determined.

6. The system according to claim 4, characterized in that The circuit anomaly determination module is used to analyze the electrical signal information packets received indoors to obtain the characteristics of circuit anomaly events in each section, including: Samples of electrical signal information packets received indoors are collected and preprocessed to obtain a track circuit operation dataset; the track circuit operation dataset is processed using a prediction model to obtain circuit abnormality event occurrence characteristics for each section; wherein the circuit abnormality event occurrence characteristics include the location and type of circuit abnormality; The fault prediction module is used to predict the signal fault status of the track circuit based on the characteristics of circuit abnormal events in all sections, and to issue an alarm notification, including: According to the track circuit signal paths of all sections, the characteristics of all circuit abnormal events are integrated to determine the signal transmission interruption nodes of the track circuits of all sections, so as to predict the location and time of the signal failure of the track, and send an alarm notification message to the platform end.

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