Track state detection method, device and equipment and storage medium

Abstract

The invention relates to the technical field of track detection, in particular to a track state detection method, device and equipment and a storage medium. The method comprises the steps that track conduction sound waves collected by a sending node and a receiving node corresponding to the sending node do not contain vehicle passing noise; based on the sound wave amplitude of the track conduction sound wave collected by the sending node and a preset fault threshold value, whether the sending node normally sends an excitation sound wave or not is judged; if yes, the signal sending power of a sending node is adjusted based on the sound wave amplitude, the fault threshold value and a preset working amplitude; judging whether the sound wave amplitude value is greater than a preset fracture threshold value or not; if yes, it is judged that a track section between the sending node and the corresponding receiving node is broken; and otherwise, judging that the track section between the sending node and the corresponding receiving node is not broken. According to the invention, the false alarm phenomenon of rail breakage is reduced.

Description

Technical Field

[0001] The present application relates to the field of track detection technology, and in particular to a track state detection method, device, equipment and storage medium. Background Art

[0002] Tracks are an important basic carrier of rail transit, and their health directly affects railway transportation and the safety of people’s lives and property. If the rails are broken, it will seriously affect the safety of train operation. Therefore, it is necessary to detect whether the tracks are broken.

[0003] At present, the method for detecting the fracture state of the track is: installing a piezoelectric transducer on the track, the piezoelectric transducer is used to generate an excitation sound wave on the track, collect the excitation sound wave on the track, and perform characteristic analysis on the excitation sound wave to determine whether the track is broken.

[0004] However, the excitation performance of the piezoelectric transducer in generating excitation sound waves is affected by the ambient temperature, and the amplitude of the excitation sound waves decreases as the temperature decreases. Therefore, when the temperature is low, the characteristic analysis of the excitation sound waves may easily lead to false alarms of track fractures. In addition, the piezoelectric transducer is driven by high-voltage alternating current, and continuous high-power operation at high temperature will cause heat generation, which may easily cause device aging or even damage, leading to false alarms of track fractures. Summary of the invention

[0005] In order to reduce the false alarm phenomenon of track fracture, the present application provides a track status detection method, device, equipment and storage medium.

[0006] In a first aspect, the present application provides a track state detection method, comprising:

[0007] In response to the fact that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and a preset fault threshold, it is determined whether the sending node normally sends the excitation sound waves;

[0008] If so, adjusting the signal transmission power of the transmitting node based on the acoustic wave amplitude, the fault threshold and the preset working amplitude;

[0009] Determining whether the amplitude of the sound wave is greater than a preset fracture threshold;

[0010] If so, it is determined that the track segment between the sending node and the corresponding receiving node is broken; otherwise, it is determined that the track segment between the sending node and the corresponding receiving node is not broken.

[0011] In a second aspect, the present application provides a track state detection device, comprising:

[0012] A sending judgment module, configured to judge whether the sending node sends the excitation sound wave normally based on the sound wave amplitude of the track-conducted sound wave collected by the sending node and a preset fault threshold value in response to the fact that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise;

[0013] A power adjustment module, configured to adjust the signal transmission power of the transmitting node based on the acoustic wave amplitude, the fault threshold and a preset working amplitude;

[0014] An amplitude judgment module, used to judge whether the amplitude of the sound wave is greater than a preset fracture threshold;

[0015] The fracture identification module is used to determine that if yes, the track segment between the sending node and the corresponding receiving node is fractured; otherwise, determine that the track segment between the sending node and the corresponding receiving node is not fractured.

[0016] In a third aspect, the present application provides a computer device, the computer device comprising a memory and a processor, the memory storing a computer program, and the processor implementing the steps in the above method when executing the computer program.

[0017] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which implements the steps in the above method when executed by a processor.

[0018] In a fifth aspect, the present application further provides a computer program product, wherein the computer program product comprises a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0019] The above-mentioned track state detection method, device, equipment and storage medium, in response to the fact that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain the passing vehicle noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and the preset fault threshold, judge whether the sending node normally sends the excitation sound wave; if so, adjust the signal sending power of the sending node based on the sound wave amplitude, the fault threshold and the preset working amplitude; judge whether the sound wave amplitude is greater than the preset fracture threshold; if so, judge that the track section between the sending node and the corresponding receiving node is fractured; otherwise, judge that the track section between the sending node and the corresponding receiving node is not fractured. Through the above implementation, when the sending node can normally send the excitation sound wave, the sending power of the sending node can be adjusted according to the relationship between the sound wave amplitude, the fault threshold and the preset working amplitude, so as to avoid the false alarm of track fracture caused by the decrease of the excitation sound wave amplitude when the temperature is low, and the false alarm of track fracture caused by the heating phenomenon caused by the sending node continuing to work at high power under high temperature.

[0020] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A flow chart of a track state detection method provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of a track state detection structure provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the structure of a trackside processing unit provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the structure of a track state detection device provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the structure of a computer device provided in an embodiment of the present application;

[0027] Figure 6 This is a diagram of the internal structure of a computer-readable storage medium provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present disclosure more clear, the present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of this article and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of this article described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0030] In this article, the term "and / or" is only a description of the association relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the related objects before and after are in an "or" relationship.

[0031] Embodiment 1

[0032] Figure 1 A flow chart of a track state detection method provided in Example 1 of the present application, refer to Figure 1 The method may be performed by a device for performing the method, and the device may be implemented by software and / or hardware. The method includes:

[0033] S110. In response to the fact that the track-conducted sound waves respectively collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and a preset fault threshold, determine whether the sending node sends the excitation sound waves normally.

[0034] In order to detect the track state, this embodiment is provided with a track state detection system, for example, referring to Figure 2 The track is pre-divided into multiple sections, which are respectively recorded as Section 1, Section 2...Section 2n. The length of the section is generally set to 3Km-4Km.

[0035] The track state detection system includes track-mounted equipment installed on the track, trackside equipment communicating with the track, and indoor equipment communicating with the trackside.

[0036] Among them, the on-track equipment includes sending nodes and receiving nodes, which are alternately arranged, and an adjacent group of sending nodes and receiving nodes are respectively arranged at the two ends of the corresponding section. For example, the left end of section 1 is provided with sending node 1, and the right end is provided with receiving node 1; the left end of section 2 is receiving node 1, and the right end is provided with sending node 2; wherein, the sending node is used to send excitation sound waves to adjacent receiving nodes, so that the subsequent track status detection system can judge whether the corresponding track section is broken according to the excitation sound waves.

[0037] The trackside equipment includes a trackside processing unit that is connected to each sending node and each receiving node in a one-to-one communication manner. Figure 3 The structure within the dotted box, the trackside processing unit includes a 4G communication module, the 4G communication module is communicatively connected to the controller, the controller is communicatively connected to the transducer driver module, ADC (Analog-to-Digital Converter), environmental temperature and humidity sensors and rail temperature acquisition module, and the ADC is communicatively connected to the sensor driver module; wherein, the 4G communication module is used for wireless communication connection with indoor equipment, and the rail temperature acquisition module, the sensor driver module and the transducer driver module are used for communication connection with the corresponding sending node.

[0038] It should be noted that the 4G communication module has an automatic time calibration function to ensure time synchronization between nodes.

[0039] Among them, the indoor equipment includes a cloud server that is communicatively connected to the 4G communication modules corresponding to each node, the cloud server is communicatively connected to the indoor monitoring host, and the indoor monitoring host is communicatively connected to the sound and light alarm equipment.

[0040] Among them, we still take the sending node as an example and continue to refer to Figure 3, the sending node includes a rail temperature sensor connected to the rail temperature acquisition module, an acoustic wave sensor connected to the sensor driving module, and a transducer connected to the transducer; wherein the transducer is used to generate an excitation sound wave on the track, and the acoustic wave sensor can detect the track-conducted sound wave containing the excitation sound wave; it should be noted that the receiving node is also provided with an acoustic wave sensor for detecting the track-conducted sound wave. It should be noted that the temperature and humidity data collected by the ambient temperature and humidity sensor and the rail temperature data collected by the rail temperature sensor will be displayed on the indoor monitoring host; subsequently, if it is determined that the track corresponding to a certain section is broken, the section will also be highlighted on the indoor monitoring host, and if it is detected that the track corresponding to a certain section is broken, the sound and light alarm device will also issue an alarm message.

[0041] It should be noted that the adjacent receiving nodes on the left and / or right side of each sending node are the receiving nodes corresponding to the sending node; illustratively, taking sending node 1 as an example, there is an adjacent receiving node 1 on its right side, then the receiving node corresponding to sending node 1 is receiving node 1; taking sending node 2 as an example, there is an adjacent receiving node 1 on its left side and an adjacent receiving node 2 on its right side, then the receiving nodes corresponding to sending node 2 are receiving node 1 and receiving node 2; the number of receiving nodes corresponding to a sending node may be 1 or 2.

[0042] It should be noted that in order to prevent the excitation sound waves sent by different sending nodes from generating crosstalk in the track, the cloud server controls different sending nodes to generate excitation sound waves in sequence. Taking one of the sending nodes as an example, after the sending node generates the excitation sound wave, its internal sound wave sensor and the sound wave sensor in the corresponding receiving node can both receive the track-conducted sound wave containing the excitation sound wave.

[0043] The sending node and its corresponding receiving node collect the corresponding track-conducted sound waves, and then determine through the controller in the node whether the track-conducted sound waves contain the passing noise generated by the train. If any one of the sending node and the corresponding receiving node determines that the track-conducted sound waves contain the passing noise generated by the train, it means that the train is passing through the section between the sending node and the corresponding receiving node; otherwise, it means that the train is not passing through the section between the sending node and the corresponding receiving node.

[0044] It should be noted that if it is determined that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise, then the track-conducted sound waves can be understood as excitation sound waves; after the sound wave sensor in the sending node receives the excitation sound wave, it sends the excitation sound wave to the controller; the excitation sound wave is generated by the transducer in the sending node, and the performance of the transducer is affected by temperature. When the temperature is low, the amplitude of the excitation sound wave is also low; if the amplitude of the excitation sound wave is low, that is, the transducer fails to emit the excitation sound wave normally, then the controller may mistakenly judge that the track in the corresponding section is broken at this time; for this reason, it is necessary to determine whether the sending node emits the excitation sound wave normally. In order to facilitate the determination of whether the sending node emits the excitation sound wave normally, the present embodiment presets a fault threshold, which is used to compare with the sound wave amplitude of the excitation sound wave, so as to determine whether the sending node emits the excitation sound wave normally.

[0045] S120: If yes, adjust the signal transmission power of the sending node based on the sound wave amplitude, the fault threshold and the preset working amplitude.

[0046] Among them, by comparing the sound wave amplitude of the excitation sound wave with the preset fault threshold, it can be determined whether the sending node normally sends out the excitation sound wave; if so, it means that the performance of the transducer of the sending node is in a normal state at this time.

[0047] It should be noted that when the performance of the transducer is in a normal state, since the performance of the transducer is limited by the influence of temperature, the sound wave amplitude of the excitation sound wave it sends may still be too large or too small. If the sound wave amplitude is too small, the controller may still misjudge the fracture. If the sound wave is too large, it means that the ring energy is under high temperature and high power, which may easily cause damage to the transducer. For this reason, after judging that the sending node normally sends the excitation sound wave, it is necessary to further judge that the sound wave amplitude of the excitation sound wave may still be too large or too small. In order to facilitate the judgment that the sound wave amplitude of the excitation sound wave is too large or too small, this embodiment not only presets a fault threshold but also presets a working amplitude. By comparing the sound wave amplitude, the fault threshold and the working amplitude, it can be determined whether the sound wave amplitude is too large or too small. When it is determined that the sound wave amplitude is too large, the controller can reduce the signal sending power of the transducer, and when it is determined that the sound wave amplitude is too small, increase the signal sending power of the transducer, thereby realizing the adjustment of the signal sending power of the sending node.

[0048] It should be noted that by adjusting the signal transmission power of the transmitting node, the transducer can be ensured to work continuously and stably, thereby ensuring that the transducer can continue to emit excitation sound waves normally, which makes it easier to reduce false alarms of track fractures.

[0049] S130: Determine whether the sound wave amplitude is greater than a preset fracture threshold.

[0050] Among them, when it is judged that the sending node normally emits the excitation sound wave, it means that the excitation sound wave at this time has the value of judging whether the track of the corresponding section is broken, that is, the excitation sound wave at this time can be used to judge whether the track of the corresponding section is broken; in order to facilitate the judgment of whether the track of the corresponding section is broken according to the excitation sound wave, the present embodiment also presets a fracture threshold, which is used to compare with the sound wave amplitude of the excitation sound wave, so as to judge whether the track of the corresponding section is broken.

[0051] S140. If so, determine that the track segment between the sending node and the corresponding receiving node is broken; otherwise, determine that the track segment between the sending node and the corresponding receiving node is not broken.

[0052] Among them, if it is determined whether the sound wave amplitude is greater than the preset fracture threshold, it means that the track of the corresponding section is fractured; otherwise, it means that the track of the corresponding section is not fractured.

[0053] It should be noted that, in this embodiment, in response to the fact that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain the passing vehicle noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and the preset fault threshold, it is judged whether the sending node normally sends the excitation sound wave; if so, the signal sending power of the sending node is adjusted based on the sound wave amplitude, the fault threshold and the preset working amplitude; it is judged whether the sound wave amplitude is greater than the preset fracture threshold; if so, it is judged that the track section between the sending node and the corresponding receiving node is fractured; otherwise, it is judged that the track section between the sending node and the corresponding receiving node is not fractured. Through the above implementation, when the sending node can normally send the excitation sound wave, the sending power of the sending node can be adjusted according to the relationship between the sound wave amplitude, the fault threshold and the preset working amplitude, so as to avoid the false alarm of track fracture caused by the decrease of the excitation sound wave amplitude when the temperature is low, and the false alarm of track fracture caused by the heating phenomenon caused by the continuous high-power operation of the sending node under high temperature.

[0054] Embodiment 2

[0055] A track state detection method provided in the second embodiment of the present application is a supplement to the method shown in the first embodiment; it should be noted that for the parts not described in detail in this embodiment, reference can be made to the descriptions of other embodiments, and the method includes:

[0056] S210, in response to receiving a signal sending instruction issued by the cloud server, sending an excitation sound wave to the corresponding receiving node, and sending a signal sending message to the cloud server, so that the cloud server determines that the track segment communication between the sending node and the receiving node is normal after receiving the signal sending message and the signal receiving message sent by the receiving node after receiving the excitation sound wave.

[0057] Among them, in order to ensure the operational stability of the track state detection system, before collecting the track-conducted sound waves of the sending node and the corresponding receiving node, it is necessary to first determine whether the sending node and the corresponding receiving node are in a normal working state; for this reason, when performing fracture detection on a certain section of the track, the cloud server first sends a signal sending instruction to the sending node corresponding to the section through the trackside processing unit. The signal sending instruction includes a signal sending time. After receiving the signal sending instruction, the sending node will send the corresponding excitation sound wave to the corresponding receiving node through the track when the signal sending time arrives, and at the same time send a signal sending message to the cloud server. The signal sending message is used to indicate to the cloud server that the sending node has sent the excitation sound wave. , to indicate that the sending node is currently in normal working condition; after the acoustic wave sensor in the receiving node receives the excitation acoustic wave, it feeds back to the corresponding controller. After receiving the feedback, the controller sends a signal reception message to the cloud server. The signal reception message is used to indicate to the cloud server that the receiving node has received the excitation acoustic wave emitted by the corresponding sending node, to indicate that the receiving node is currently processing in normal working condition; if the cloud server receives both the signal sending message emitted by the sending node and the signal receiving message emitted by the receiving node after sending a signal sending instruction to the sending node, it can be determined that the sending node and the receiving node are in normal working condition, that is, it indicates that the track section communication between the sending node and the receiving node is normal.

[0058] S220. In response to the fact that the track-conducted sound waves respectively collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and a preset fault threshold, determine whether the sending node sends the excitation sound waves normally.

[0059] S230: If yes, adjust the signal transmission power of the sending node based on the sound wave amplitude, the fault threshold and the preset working amplitude.

[0060] S240: Determine whether the sound wave amplitude is greater than a preset fracture threshold.

[0061] S250. If so, determine that the track segment between the sending node and the corresponding receiving node is broken; otherwise, determine that the track segment between the sending node and the corresponding receiving node is not broken.

[0062] Embodiment 3

[0063] A track state detection method provided in Embodiment 3 of the present application refines the step of determining whether the track-conducted sound wave collected by the sending node contains vehicle noise in Embodiment 1; it should be noted that for the parts not described in detail in this embodiment, reference may be made to the descriptions of other embodiments, and the method includes:

[0064] S310. In response to the fact that the track-conducted sound waves respectively collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and a preset fault threshold, determine whether the sending node sends the excitation sound waves normally.

[0065] The step of determining whether the track-conducted sound waves collected by the sending node contain vehicle noise comprises:

[0066] A310. Generate a sound wave spectrum corresponding to the track-conducted sound wave.

[0067] Among them, when the sending node sends an excitation sound wave to the receiving node through the track, if the train passes near the sending node, the movement of the train will cause the track to vibrate, thereby generating passing noise on the track. At this time, the track-conducted sound wave contains not only the excitation sound wave but also the passing noise; if the train does not pass near the sending node, the track-conducted sound wave will not contain the passing noise, and at this time the track-conducted sound wave can basically be regarded as the excitation sound wave.

[0068] It should be noted that if the track-conducted sound waves contain vehicle noise, it means that the corresponding section is affected by the passage of the train and it is not suitable to detect track fractures at present. In order to determine whether a certain section is currently suitable for track fracture detection, it is necessary to first determine whether the track-conducted sound waves collected by the sound wave sensor in the sending node contain the vehicle noise.

[0069] In order to facilitate the determination of whether the track-conducted sound waves contain vehicle passing noise, the track-conducted sound waves may be processed to generate a sound wave spectrum of the track-conducted sound waves.

[0070] A320. Calculate the total frequency band energy of a preset frequency band in the sound wave spectrum.

[0071] The preset frequency band in this embodiment is 0-6KHz, and the total frequency band energy is the total energy in the sound wave spectrum in the preset frequency band.

[0072] A330. Determine whether the total energy of the frequency band is greater than a preset energy threshold, thereby determining whether the track-conducted sound waves collected by the sending node contain vehicle noise.

[0073] Among them, if the track-conducted sound waves contain vehicle noise, the total frequency band energy corresponding to the preset frequency band will be significantly increased compared to the absence of vehicle noise. Therefore, this embodiment presets an energy threshold, which is used to compare with the total frequency band energy. If the total frequency band energy is greater than the preset energy threshold, it means that the track-conducted sound waves contain vehicle noise.

[0074] It should be noted that steps A310-A330 are used to determine whether the track-conducted sound waves collected by the sending node contain vehicle noise. Similarly, the receiving node can also use this method to determine whether the track-conducted sound waves it collects contain vehicle noise, which will not be repeated here. For a certain section, the section has its corresponding sending node and receiving node, and its corresponding sending node and receiving node both determine whether the track-conducted sound waves they collect contain vehicle noise. If at least one of the nodes (the sending node or the receiving node) determines that the track-conducted sound waves contain vehicle noise, it means that the train is currently passing through the section. At this time, it is not appropriate to perform track fracture detection corresponding to the section. The cloud server controls the next sending node to execute the track status detection method shown in this embodiment; and so on.

[0075] S320: If yes, adjust the signal transmission power of the sending node based on the sound wave amplitude, the fault threshold and the preset working amplitude.

[0076] S330: Determine whether the sound wave amplitude is greater than a preset fracture threshold.

[0077] S340: If so, determine that the track segment between the sending node and the corresponding receiving node is broken; otherwise, determine that the track segment between the sending node and the corresponding receiving node is not broken.

[0078] Embodiment 4

[0079] A track state detection method provided in a fourth embodiment of the present application refines the method of "determining whether the sending node sends the excitation sound wave normally based on the sound wave amplitude of the track-conducted sound wave collected by the sending node and a preset fault threshold" in the first embodiment; it should be noted that for the parts not described in detail in this embodiment, reference may be made to the descriptions of other embodiments, and the method includes:

[0080] S411. In response to the fact that the track-conducted sound waves respectively collected by a sending node and a receiving node corresponding to the sending node do not contain vehicle passing noise, determine the sound wave amplitude of the track-conducted sound waves collected by the sending node.

[0081] Among them, if the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain the noise of passing vehicles, it means that the track-conducted sound waves collected by the sending node at this time can be used to detect whether there is a break in the track of the corresponding section; and, at this time, the track-conducted sound waves collected by the sending node can be basically regarded as the excitation sound waves emitted by it; the amplitude of the track-conducted sound waves is the average of the amplitudes of each peak in the track-conducted sound waves.

[0082] S412: Determine whether the acoustic wave amplitude is greater than a preset fault threshold, thereby determining whether the sending node sends the excitation acoustic wave normally.

[0083] Among them, if the sound wave amplitude is greater than the fault threshold, it means that the amplitude of the excitation sound wave emitted by the transducer is not too small and is in a normal state. At this time, it can be determined that the sending node sends the excitation sound wave normally; otherwise, it can be determined that the sending node does not send the excitation sound wave normally.

[0084] S420: If yes, adjust the signal transmission power of the sending node based on the sound wave amplitude, the fault threshold and the preset working amplitude.

[0085] S430: Determine whether the sound wave amplitude is greater than a preset fracture threshold.

[0086] S440: If so, determine that the track segment between the sending node and the corresponding receiving node is broken; otherwise, determine that the track segment between the sending node and the corresponding receiving node is not broken.

[0087] Embodiment 5

[0088] A track state detection method provided in Embodiment 5 of the present application refines the “adjusting the signal transmission power of the transmitting node based on the acoustic wave amplitude, the fault threshold and the preset working amplitude” in Embodiment 1; it should be noted that for the parts not described in detail in this embodiment, reference may be made to the descriptions of other embodiments, and the method includes:

[0089] S510. In response to the fact that the track-conducted sound waves respectively collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and a preset fault threshold, determine whether the sending node sends the excitation sound waves normally.

[0090] S521. If the acoustic wave amplitude is greater than the fault threshold but less than a preset working amplitude, increase the signal transmission power of the sending node.

[0091] Among them, the fault threshold and the working amplitude are both used to compare with the sound wave amplitude at the same time. If the sound wave amplitude is greater than the fault threshold but less than the preset working amplitude, it means that although the sending node sends the excitation sound wave normally, the amplitude of the excitation sound wave is low. In order to facilitate the misjudgment of track fracture detection in the corresponding section due to the low amplitude, it is necessary to increase the signal sending power of the sending node.

[0092] S522: If the acoustic wave amplitude is not less than the working amplitude, reduce the signal transmission power of the sending node.

[0093] Among them, if the sound wave amplitude is not less than the working amplitude, it means that although the sending node sends the excitation sound wave normally, the amplitude of the excitation sound wave is too high. It also means that the sending node continues to work at high power under high temperature. In order to prevent the sending node from being damaged, it is necessary to reduce the signal sending power of the sending node.

[0094] S530: Determine whether the acoustic wave amplitude is greater than a preset fracture threshold.

[0095] S540: If so, determine that the track segment between the sending node and the corresponding receiving node is broken; otherwise, determine that the track segment between the sending node and the corresponding receiving node is not broken.

[0096] Embodiment 6

[0097] A track state detection method provided in Embodiment 6 of the present application supplements the steps after step S110 of Embodiment 1. It should be noted that for the parts not described in detail in this embodiment, reference may be made to the descriptions of other embodiments. The method includes:

[0098] S610. In response to the fact that the track-conducted sound waves respectively collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and a preset fault threshold, determine whether the sending node sends the excitation sound waves normally.

[0099] S620: If yes, adjust the signal transmission power of the sending node based on the sound wave amplitude, the fault threshold and the preset working amplitude.

[0100] S630: If it is determined that the sending node does not send the excitation sound wave normally, then the segment status between the sending node and the corresponding receiving node is determined to be abnormal sending.

[0101] Among them, if the controller of the sending node determines that the sound wave amplitude of the track-conducted sound wave collected by the sound wave sensor is less than or equal to the preset fault threshold, it means that the amplitude of the excitation sound wave emitted by the transducer is too low, resulting in the excitation sound wave being unusable for track fracture detection. In this case, it is considered that the sending node does not send the excitation sound wave normally. At this time, the controller determines that the section status between its sending node and the corresponding receiving node is abnormal sending.

[0102] S640: Determine whether the sound wave amplitude is greater than a preset fracture threshold.

[0103] S650: If so, determine that the track segment between the sending node and the corresponding receiving node is broken; otherwise, determine that the track segment between the sending node and the corresponding receiving node is not broken.

[0104] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0105] Embodiment 7

[0106] Based on the same inventive concept, this embodiment also provides a track state detection device for implementing the track state detection method involved above. The implementation solution provided by the device to solve the problem is similar to the implementation solution recorded in the above method, so the specific limitations in one or more track state detection device embodiments provided below can refer to the limitations of the track state detection method above, and will not be repeated here.

[0107] In this embodiment, Figure 4 As shown, a track state detection device is provided, comprising:

[0108] A sending judgment module, configured to judge whether the sending node sends the excitation sound wave normally based on the sound wave amplitude of the track-conducted sound wave collected by the sending node and a preset fault threshold value in response to the fact that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise;

[0109] A power adjustment module, configured to adjust the signal transmission power of the transmitting node based on the acoustic wave amplitude, the fault threshold and a preset working amplitude;

[0110] An amplitude judgment module, used to judge whether the amplitude of the sound wave is greater than a preset fracture threshold;

[0111] The fracture identification module is used to determine that if yes, the track segment between the sending node and the corresponding receiving node is fractured; otherwise, determine that the track segment between the sending node and the corresponding receiving node is not fractured.

[0112] Each module in the above-mentioned track state detection device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0113] It should be noted that, in this embodiment, in response to the fact that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain the passing vehicle noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and the preset fault threshold, it is judged whether the sending node normally sends the excitation sound wave; if so, the signal sending power of the sending node is adjusted based on the sound wave amplitude, the fault threshold and the preset working amplitude; it is judged whether the sound wave amplitude is greater than the preset fracture threshold; if so, it is judged that the track section between the sending node and the corresponding receiving node is fractured; otherwise, it is judged that the track section between the sending node and the corresponding receiving node is not fractured. Through the above implementation, when the sending node can normally send the excitation sound wave, the sending power of the sending node can be adjusted according to the relationship between the sound wave amplitude, the fault threshold and the preset working amplitude, so as to avoid the false alarm of track fracture caused by the decrease of the excitation sound wave amplitude when the temperature is low, and the false alarm of track fracture caused by the heating phenomenon caused by the continuous high-power operation of the sending node under high temperature.

[0114] Embodiment 8

[0115] In this embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 5As shown. The computer device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a track state detection method is implemented.

[0116] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the scheme of the present disclosure, and does not constitute a limitation on the computer device to which the scheme of the present disclosure is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0117] Embodiment 9

[0118] In this embodiment, a computer readable storage medium is provided. Figure 6 As shown, a computer program is stored thereon, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0119] Embodiment 10

[0120] In this embodiment, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0121] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this disclosure are all information and data authorized by the user or fully authorized by all parties.

[0122] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided by the present disclosure can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided by the present disclosure may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited thereto. The processor involved in each embodiment provided by the present disclosure may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited thereto.

[0123] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0124] The above-described embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the attached claims.

Claims

1. A track state detection method, characterized in that: include: In response to the fact that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise, based on the sound wave amplitude of the track-conducted sound waves collected by the sending node and a preset fault threshold, it is determined whether the sending node normally sends the excitation sound waves; If so, adjusting the signal transmission power of the transmitting node based on the acoustic wave amplitude, the fault threshold and the preset working amplitude; Determining whether the amplitude of the sound wave is greater than a preset fracture threshold; If so, it is determined that the track segment between the sending node and the corresponding receiving node is broken; otherwise, it is determined that the track segment between the sending node and the corresponding receiving node is not broken.

2. The method according to claim 1, characterized in that Before the response that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain the vehicle passing noise, the method further includes: In response to receiving a signal sending instruction issued by the cloud server, an excitation sound wave is sent to the corresponding receiving node, and a signal sending message is sent to the cloud server, so that the cloud server determines that the track segment communication between the sending node and the receiving node is normal after receiving the signal sending message and the signal receiving message sent by the receiving node after receiving the excitation sound wave.

3. The method according to claim 1, characterized in that The step of determining whether the track-conducted sound waves collected by the sending node contain vehicle noise comprises: generating a sound wave spectrum corresponding to the track-conducted sound wave; Calculating the sum of frequency band energies of a preset frequency band in the sound wave spectrum; It is determined whether the total energy of the frequency band is greater than a preset energy threshold, thereby determining whether the track-conducted sound waves collected by the sending node contain vehicle passing noise.

4. The method according to claim 1, characterized in that: The determining whether the sending node sends the excitation sound wave normally based on the sound wave amplitude of the track-conducted sound wave collected by the sending node and a preset fault threshold comprises: Determining the sound wave amplitude of the track-conducted sound wave collected by the sending node; It is determined whether the acoustic wave amplitude is greater than a preset fault threshold, thereby determining whether the sending node sends the excitation acoustic wave normally.

5. The method according to claim 1, characterized in that The adjusting the signal transmission power of the transmitting node based on the acoustic wave amplitude, the fault threshold and the preset working amplitude includes: If the acoustic wave amplitude is greater than the fault threshold but less than a preset working amplitude, increasing the signal transmission power of the transmitting node; If the acoustic wave amplitude is not less than the working amplitude, the signal transmission power of the transmitting node is reduced.

6. The method according to claim 1, characterized in that If it is determined that the sending node does not send the excitation sound wave normally, then the segment status between the sending node and the corresponding receiving node is determined to be abnormal transmission.

7. A track state detection device, characterized in that: The device comprises: A sending judgment module, configured to judge whether the sending node sends the excitation sound wave normally based on the sound wave amplitude of the track-conducted sound wave collected by the sending node and a preset fault threshold value in response to the fact that the track-conducted sound waves collected by the sending node and the receiving node corresponding to the sending node do not contain vehicle passing noise; A power adjustment module, configured to adjust the signal transmission power of the transmitting node based on the acoustic wave amplitude, the fault threshold and a preset working amplitude; An amplitude judgment module, used to judge whether the amplitude of the sound wave is greater than a preset fracture threshold; The fracture identification module is used to determine that if yes, the track segment between the sending node and the corresponding receiving node is fractured; otherwise, determine that the track segment between the sending node and the corresponding receiving node is not fractured.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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