CN117533368A - Wheel sensor and falling detection device, method and system thereof - Google Patents
Wheel sensor and falling detection device, method and system thereof Download PDFInfo
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- CN117533368A CN117533368A CN202311774490.6A CN202311774490A CN117533368A CN 117533368 A CN117533368 A CN 117533368A CN 202311774490 A CN202311774490 A CN 202311774490A CN 117533368 A CN117533368 A CN 117533368A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/16—Devices for counting axles; Devices for counting vehicles
- B61L1/169—Diagnosis
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Abstract
The application discloses a wheel sensor and a falling detection device, method and system of the wheel sensor. The device comprises: the first side is provided with a plurality of eddy current displacement sensors, the second side is provided with a plurality of eddy current displacement sensors, the first side is an opposite surface of the rail web side of the steel rail, and the second side is an opposite surface of the upper surface of the rail bottom of the steel rail. The probe connecting lines of the plurality of eddy current displacement sensors of the first side face are parallel to the first side face, the center line of the first side face is provided with at least one eddy current displacement sensor, and at least one eddy current displacement sensor is arranged on at least one of the left side and the right side of the center line; the probe connecting lines of the plurality of eddy current displacement sensors on the second side face are parallel to the second side face, at least one eddy current displacement sensor is arranged on the central line of the second side face, at least one eddy current displacement sensor is arranged on at least one of the left side and the right side of the central line, and the central lines are perpendicular to the extending direction of the steel rail; the eddy current displacement sensor is connected with the controller. The application improves the timely detectability of the installation state of the wheel sensor.
Description
Technical Field
The present application relates to the field of railway operation and maintenance, and more particularly, to a wheel sensor and a drop detection device, method and system for the wheel sensor.
Background
The wheel sensor is an important component of the axle counting device and can be used for section occupation/idle inspection. The wheel sensor can be installed on the inner side of the steel rail through the custom-made support, and the wheel sensor has the risk of falling off, and the falling off of the wheel sensor can lead to the wrong axle counting of axle counting equipment, and the axle counting function can be lost when serious, so that the normal operation of a train is influenced, and therefore, the wheel sensor needs to be checked at regular time. The prior wheel sensor anti-falling measures are measures for fastening or optimizing the mounting bracket, checking operation and maintenance personnel regularly, and the like, but the measures have the defect of untimely maintenance. Therefore, how to timely detect the installation state of the wheel sensor is a technical problem to be solved.
Disclosure of Invention
In view of the above, the present application provides a wheel sensor and a drop detection device, method and system of the wheel sensor for solving the problem that it is difficult to detect the installation state of the wheel sensor in time.
In order to achieve the above object, the following solutions have been proposed:
A dropout detection means of a wheel sensor, the dropout detection means comprising a plurality of eddy current displacement sensors provided on a first side of the wheel sensor, the first side being a face of the wheel sensor opposite a web side of a rail, and a plurality of eddy current displacement sensors provided on a second side of the wheel sensor, the second side being a face of the wheel sensor opposite an upper surface of a rail bottom of the rail;
the probe connecting lines of the eddy current displacement sensors arranged on the first side face are parallel to the first side face, at least one eddy current displacement sensor is arranged on the central line of the first side face, at least one eddy current displacement sensor is arranged on at least one of the left side and the right side of the central line of the first side face, and the central line of the first side face is perpendicular to the extending direction of the steel rail;
the probe connecting lines of the eddy current displacement sensors arranged on the second side face are parallel to the second side face, at least one eddy current displacement sensor is arranged on the central line of the second side face, at least one eddy current displacement sensor is arranged on at least one of the left side and the right side of the central line of the second side face, and the central line of the second side face is perpendicular to the extending direction of the steel rail;
The falling detection device further comprises a controller, and the output end of each eddy current displacement sensor is in communication connection with the controller.
Alternatively to this, the method may comprise,
the power input end of each eddy current displacement sensor is electrically connected with the power supply circuit of the wheel sensor.
A drop-off detection method of a wheel sensor, the drop-off detection method of the wheel sensor comprising:
the controller acquires a plurality of distance data acquired by the eddy current displacement sensor in the falling detection device of the wheel sensor;
and the controller judges the falling-off condition of the wheel sensor according to the plurality of distance data.
Optionally, the determining, according to the plurality of distance data, the drop-off condition of the wheel sensor includes:
if the distance data of one eddy current displacement sensor is detected to be abnormal, judging whether first distance data of the eddy current displacement sensor arranged on the central line of the side face of the target is abnormal or not, wherein the side face of the target comprises at least one of the first side face and the second side face;
and determining the future falling type of the wheel sensor based on the judging result of whether the abnormality occurs and the distance data of other eddy current displacement sensors.
Optionally, if the target side includes the first side and the second side, the determining the future drop type of the wheel sensor based on the determination result of whether the abnormality occurs and distance data of other eddy current displacement sensors includes:
if the distance data of the eddy current displacement sensor on the center line of the second side surface is not abnormal, outputting manual investigation prompt information;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, the distance data of the eddy current displacement sensor on the center line of the first side surface is abnormal, and the distance data of at least one eddy current displacement sensor on the left side and the right side of the center line of the first side surface is abnormal, determining that the future falling type of the wheel sensor is an inward falling type or an outward falling type;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, the distance data of the eddy current displacement sensor on the center line of the first side surface is not abnormal, and the distance data of at least one eddy current displacement sensor on the left side and the right side of the center line of the second side surface is abnormal, determining that the future falling type of the wheel sensor is double-side falling or single-side falling;
And/or the number of the groups of groups,
outputting the manual investigation prompt information if the distance data of the eddy current displacement sensor on the central line of the second side surface is abnormal, the distance data of the eddy current displacement sensor on the central line of the first side surface is abnormal, and the distance data of a plurality of eddy current displacement sensors on the left side and the right side of the central line of the first side surface are not abnormal;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensors on the central line of the second side face are abnormal, the distance data of the eddy current displacement sensors on the central line of the first side face are not abnormal, and the distance data of the eddy current displacement sensors on the left side and the right side of the central line of the second side face are not abnormal, outputting the manual investigation prompt information.
Optionally, if the target side includes the first side, determining the future drop type of the wheel sensor based on the determination result of whether the abnormality occurs and distance data of other eddy current displacement sensors includes:
and if the distance data of at least one eddy current displacement sensor on the side of the target is abnormal, determining that the future falling type of the wheel sensor is an inward falling type or an outward falling type.
Optionally, if the target side includes the second side, the determining, based on the determination result of whether the abnormality occurs and distance data of other eddy current displacement sensors, a future drop type of the wheel sensor includes:
and if the distance data of at least one eddy current displacement sensor on the side of the target is abnormal, determining that the future falling type of the wheel sensor is double-side falling or single-side falling.
A dropout detection system of a wheel sensor, the dropout detection system of the wheel sensor comprising:
an acquisition unit for controlling a controller to acquire a plurality of distance data acquired by the eddy current displacement sensor in the falling detection device of the wheel sensor;
and the judging unit is used for controlling the controller to judge the falling-off condition of the wheel sensor according to the plurality of distance data.
A wheel sensor comprises the falling-off detection device of the wheel sensor.
A readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the fall-off detection method according to any of the preceding claims.
The application relates to a wheel sensor and a falling detection device, method and system of the wheel sensor. The drop detection device is provided with a plurality of eddy current displacement sensors on the first side surface and the second side surface of the wheel sensor, and is used for monitoring the distance between the first side surface of the wheel sensor and the rail web side surface of the steel rail and whether the distance between the wheel sensor and the upper surface of the rail bottom changes or not in real time. According to the method and the device, the distance state between the wheel sensor and the steel rail can be monitored in real time through the eddy current displacement sensor, whether the position of the wheel sensor is abnormal or not is judged in real time, and the timely detectability of the state of the wheel sensor can be effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of a drop-off detecting device of a wheel sensor according to an embodiment of the present disclosure;
FIG. 2 is a schematic illustration of a wheel sensor mounting provided in an embodiment of the present application;
fig. 3 is a schematic structural view of a fastening screw of a mounting bracket according to an embodiment of the present disclosure;
fig. 4 is a schematic structural view of a fastening screw of another mounting bracket according to an embodiment of the present disclosure;
fig. 5 is a schematic flow chart of a method for detecting a wheel sensor falling off according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a system for detecting a wheel sensor falling off according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the prior art, the wheel sensor anti-falling measures have the defects of being limited or optimizing the mounting bracket and the operation and maintenance personnel to check the two measures at regular intervals, but the two measures have the defects of untimely maintenance, incapacity, waste of manpower resources and material resources and the like.
As shown in fig. 1, the embodiment of the present application provides a drop detection device of a wheel sensor, which may include a plurality of eddy current displacement sensors (1, 2, and 3) disposed on a first side 001 of the wheel sensor, the first side 001 being a surface of the wheel sensor opposite to a web side of a rail, and a plurality of eddy current displacement sensors (4, 5, and 6) disposed on a second side 002 of the wheel sensor, the second side being a surface of the wheel sensor opposite to an upper surface of a rail bottom of the rail;
the probe connecting lines of the eddy current displacement sensors arranged on the first side face 001 are parallel to the first side face 001, at least one eddy current displacement sensor is arranged on the central line of the first side face 001, at least one eddy current displacement sensor is arranged on at least one of the left side and the right side of the central line of the first side face 001, and the central line of the first side face 001 is perpendicular to the extending direction of the steel rail;
the probe connecting lines of the plurality of eddy current displacement sensors arranged on the second side face 002 are parallel to the second side face 002, at least one eddy current displacement sensor is arranged on the central line of the second side face 002, at least one eddy current displacement sensor is arranged on at least one of the left side and the right side of the central line of the second side face 002, and the central line of the second side face 002 is perpendicular to the extending direction of the steel rail;
The falling detection device can also comprise a controller, and the output end of each eddy current displacement sensor can be in communication connection with the controller.
The eddy current displacement sensor can be a non-contact linear measuring tool, and basically based on the law of electromagnetic induction, the distance between the probe and the measured object can be measured statically and dynamically without contacting the measured object. The eddy current displacement sensor can comprise three parts, namely a probe, an extension cable and a signal conditioning module, wherein the probe can be arranged on the surface of an object, and the surface of the probe is parallel to the surface of the object; for detecting the distance between the object surface and other metal surfaces; the signal conditioning module can amplify, filter and digitize the signal detected by the detection coil in the probe so as to facilitate subsequent data analysis and processing. Specifically, weak electric signals detected by the detection coil are amplified to overcome loss and noise interference in the signal transmission process. Then, the signal is smoothed by a filter to remove noise and interference signals and improve the signal-to-noise ratio of the signal. Finally, the analog signal is converted into a digital signal through digital processing so as to be convenient for processing and analysis by a computer. An eddy current displacement sensor may be mounted on the wheel sensor to detect the distance between the wheel sensor and the rail. Alternatively, the eddy current displacement sensor may be potted inside the wheel sensor with its probe surface parallel to the surface of the wheel sensor.
The wheel sensor can be installed in the rail inboard through the installing support of customization, can judge wheel or have the induction plate of wheel characteristic accurately, and the prerequisite of accurate judgement is: the upper plane of the wheel sensor is parallel to the rail surface, and the two sides of the wheel sensor are perpendicular to the rail surface and keep a certain fixed distance from the rail. Specifically, the first side 001 of the wheel sensor may have a fixed distance from the web side of the rail; the second side 002 of the wheel sensor has a fixed distance from the upper surface of the rail bottom of the steel rail, wherein, as shown in fig. 2, the shadow part is a mounting bracket of the wheel sensor, the first side can be 001 as shown in fig. 2, and the rail web side of the steel rail can be 003 as shown in fig. 2; the second side may be 002 as shown in fig. 2 and the rail bottom upper surface of the rail may be 004 as shown in fig. 2.
If the wheel sensor has possibility of falling, the distance between the second side face 002 of the wheel sensor and the rail bottom upper surface of the steel rail will change, but when the possible falling type of the wheel sensor is a falling type of backward falling or inward falling, the change of the distance between the second side face 002 and the rail bottom upper surface of the steel rail is not obvious, and the falling type of backward falling or inward falling is difficult to be judged only according to the distance between the second side face 002 of the wheel sensor and the rail bottom upper surface of the steel rail. Therefore, in this embodiment, a plurality of eddy current displacement sensors may be disposed on the second side 002 of the wheel sensor, and a plurality of eddy current displacement sensors may be disposed on the first side 001 of the wheel sensor, so as to facilitate comprehensive detection of various falling types or combined falling types that may occur in the wheel sensor. When the eddy current displacement sensor is arranged, because the center line position on the surface of the wheel sensor is special (when the wheel sensor has the possibility of falling off from one side, falling off from two sides, falling off from backward or falling off from inward, the distance of the center line position can be changed), one eddy current displacement sensor can be arranged on the center line of the first side face 001 and the center line of the second side face 002 of the wheel sensor so as to monitor the wheel sensor. In order to determine the future falling type of the wheel sensor with high accuracy, a plurality of eddy current displacement sensors can be selectively arranged on the left side and the right side of the center line. In the embodiment, an eddy current displacement sensor is respectively arranged at the left side and the right side of the center line of the first side 001; an eddy current displacement sensor is arranged at the left side and the right side of the center line of the second side 002.
The signal detected by the eddy current displacement sensor probe can be amplified, filtered and digitized by the controller, so that subsequent data analysis and processing are facilitated. The embodiment can calibrate the installation position of the wheel sensor through the eddy current displacement sensor so as to ensure the accuracy and the reliability of the measurement result.
According to the falling detection device of the wheel sensor, the power input end of each eddy current displacement sensor is electrically connected with the power supply circuit of the wheel sensor.
The power input end of the eddy current displacement sensor can be connected with the power supply circuit of the wheel sensor, so that the eddy current displacement sensor can start to monitor the installation state or the installation position (distance) of the wheel sensor in real time after the wheel sensor is electrified.
According to the falling detection device of the wheel sensor, the plurality of eddy current displacement sensors are arranged on the first side 001 and the second side 002 of the wheel sensor, and are used for monitoring the distance between the first side 001 of the wheel sensor and the rail web side of the steel rail and whether the distance between the wheel sensor and the rail bottom upper surface changes or not in real time. The method and the device can monitor the distance state between the wheel sensor and the steel rail in real time through the eddy current displacement sensor, judge whether the position of the wheel sensor is abnormal in real time, and can effectively improve the timely detectability of the installation state of the wheel sensor.
Furthermore, in the embodiment, all possible falling-off conditions of the wheel sensor are detected, so that on one hand, the frequency bands of the eddy current displacement sensor and the wheel sensor are different, the eddy current displacement sensor and the wheel sensor are not mutually influenced and work independently; on the other hand, a plurality of eddy current displacement sensors are encapsulated in the nonmetal shell of the wheel sensor, no other metal influence exists, and the embodiment is provided with a plurality of eddy current displacement sensors, so that more complicated falling situations can be judged, the occurrence of falling misjudgment situations caused by displacement of train vibration can be effectively reduced, and the stability and the detection precision are increased. The probe of the eddy current sensor faces to the rail web and the rail bottom of the steel rail, and can not be influenced by wheels, sensing plates and suspended matters when passing through the train, so that the falling judgment of the wheel sensor is influenced.
The embodiment of the application also provides a method for detecting the falling off of the wheel sensor, which can comprise the following steps:
step one: the controller acquires a plurality of distance data acquired by the eddy current displacement sensor in the falling detection device of the wheel sensor in the above embodiment;
step two: the controller judges the falling-off condition of the wheel sensor according to the plurality of distance data.
As shown in fig. 3 and 4, the wheel sensor may be mounted on the inside of the rail by a mounting bracket. The mounting bracket may be provided with a plurality of fastening screws (1, 2, 3, 4, 5, 6 and 7 in fig. 3 and 4) for fixing, loosening of the fastening screws may result in a possible falling-off type of the wheel sensor, and further, loosening of the fastening screws at different positions may result in different possible falling-off types of the wheel sensor. The specific case can be shown in the falling-off type table of Table 1
Table 1 shedding type table
| Type of fall off | Loosening state of fastening screw |
| Single side drop off | 3 or 4 |
| Double-sided shedding | 3 and 4 |
| Internal/external tilt fall off | 1. 2, 5, 6, 7 and various combinations |
Because the fastening screw is loosened, the distance between the wheel sensor and the steel rail changes, and the falling-off condition of the wheel sensor can be judged according to the change of distance data acquired by the eddy current displacement sensors on the wheel sensor, wherein the falling-off condition can comprise the falling-off type of the wheel sensor possibly falling off.
The eddy current displacement sensor can be powered by a wheel sensor power supply circuit, and the main circuit acquires data returned by the eddy current displacement sensor probe in real time. When the eddy current displacement sensor probe can detect the installation first, the original distance between the wheel sensor and the side face of the rail web (in the laboratory environment, the original distance measurement value can be 3.1 cm) and the original distance between the wheel sensor and the upper surface of the rail bottom (in the laboratory environment, the original distance measurement value can be 5.7 cm). Under normal working conditions (the two types of distances float within the preset range of the original distance), a current calibration value can be output; when single-side falling, double-side falling, inward falling or outward falling can occur, at least one data of two types of distance data collected by the main circuit deviates (at least one data of the two types of distance exceeds the preset range of the original distance), and an abnormal value of the current is output. If the abnormal value of the current is output temporarily, the fastening screw of the mounting bracket is considered to be loosened, so that the possibility of falling off of the wheel sensor is considered to be caused; when the current abnormal value is continuously output for a long time, it can be considered that the wheel sensor has fallen off.
Furthermore, the multiple eddy current displacement sensors can be connected with the indoor axle counting monitoring system through cables, so that the distance information between the wheel sensors and the steel rail can be converted into electric signals, and then the electric signals are transmitted to a host in the indoor axle counting monitoring system for logic processing. The indoor axle counting monitoring system can process real-time data sent by the eddy current displacement sensor, and can judge whether the wheel sensor is in single-side falling, double-side falling, inward falling or outward falling or not or output manual investigation reminding information. Specifically, after the electric signal of the eddy current displacement sensor is transmitted indoors, the electrical signal can be evaluated and processed by the indoor axle counting monitoring equipment to be processed into a data packet. The system is communicated with the indoor axle counting monitoring system in an internal communication mode through a CAN bus mode, the indoor axle counting monitoring system acquires a data packet and then carries out logic operation on the data packet, and the falling-off condition of the wheel sensor is judged (the falling-off condition CAN comprise the future falling-off type and the falling-off type of the wheel sensor). The indoor axle counting monitoring system can provide rich human-computer interaction interfaces, and can realize the functions of displaying station field section state information, displaying real-time data, displaying real-time alarm, monitoring communication state, monitoring host state, playing back historical data, displaying historical alarm, drawing curves, intelligently diagnosing and the like.
The embodiment of the application provides a method for detecting the falling of the wheel sensor, which can judge the possible falling type of the wheel sensor in real time through the distance data acquired by the eddy current displacement sensor in real time, and can effectively improve the timely detection of the installation state of the wheel sensor.
Furthermore, the method introduces an eddy current displacement sensor to judge the possible single-side falling, double-side falling, inward-tilting falling, outward-tilting falling or the falling combination conditions, and transmits an abnormal signal to an indoor axle counting monitoring system when the wheel sensor does not completely fall or falls, and the indoor axle counting monitoring system sends out alarm information (which can comprise information such as the possible falling type of the wheel sensor, the position of the wheel sensor which falls, the falling type which falls and the like) so as to inform relevant operation and maintenance personnel of timely maintenance.
According to another method for detecting the falling off of the wheel sensor provided in the embodiment of the present application, the second step may include a third step and a fourth step:
if the distance data of one eddy current displacement sensor on the wheel sensor is detected to be abnormal, executing the third step and the fourth step;
Step three: judging whether first distance data of an eddy current displacement sensor arranged on a central line of a target side face is abnormal or not, wherein the target side face comprises at least one of a first side face and a second side face;
step four: and determining the future falling type of the wheel sensor based on the judging result of whether abnormality occurs or not and the distance data of other eddy current displacement sensors.
If the distance data of at least one eddy current displacement sensor on the wheel sensor is detected to be abnormal due to the specificity of the center line position, whether the distance data of the eddy current displacement sensor on the center line position is abnormal can be determined first. If the distance data of the eddy current displacement sensors on the center line position are determined to be abnormal, the eddy current displacement sensors on the left side and the right side of the center line can be synthesized to judge the future falling type of the wheel sensor.
If the distance data of the eddy current displacement sensor on the center line position is not abnormal, but the distance data of the eddy current displacement sensor is detected to be abnormal, the eddy current displacement sensor can be considered to be faulty or an internal distance data processing module of the wheel sensor is considered to be faulty, and then manual investigation reminding information is output to provide staff for manual investigation.
Further, when a plurality of eddy current displacement sensors are arranged on the first side face and a plurality of eddy current displacement sensors are arranged on the second side face, the embodiment can judge whether manual investigation reminding information needs to be output according to the distance condition of the eddy current displacement sensors on the central line of the second side face, and judge the future falling type of the wheel sensor according to the distance condition of the eddy current displacement sensors on the central line of the first side face and the distance data of the eddy current displacement sensors on two sides of the central line of the target side face.
In particular, as shown in fig. 5,
if the distance data of the eddy current displacement sensor on the center line of the second side surface is not abnormal, outputting manual investigation prompt information;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensor on the central line of the second side surface is abnormal, the distance data of the eddy current displacement sensor on the central line of the first side surface is abnormal, and the distance data of at least one eddy current displacement sensor on the left side and the right side of the central line of the first side surface is abnormal, determining that the future falling-off type of the wheel sensor is inward falling-off or outward falling-off;
And/or the number of the groups of groups,
if the distance data of the eddy current displacement sensor on the central line of the second side face is abnormal, the distance data of the eddy current displacement sensor on the central line of the first side face is not abnormal, and the distance data of at least one eddy current displacement sensor on the left side and the right side of the central line of the second side face is abnormal, determining that the future falling type of the wheel sensor is double-side falling or single-side falling;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensors on the central line of the second side face are abnormal, the distance data of the eddy current displacement sensors on the central line of the first side face are abnormal, and the distance data of the eddy current displacement sensors on the left side and the right side of the central line of the first side face are not abnormal, outputting manual investigation prompt information;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensors on the center line of the second side face are abnormal, the distance data of the eddy current displacement sensors on the center line of the first side face are not abnormal, and the distance data of the eddy current displacement sensors on the left side and the right side of the center line of the second side face are not abnormal, outputting manual investigation prompt information.
Wherein, because of the position specificity of the eddy current displacement sensor on the second side center line, the distance data of the eddy current displacement sensor on the second side center line can be changed for each falling type which can occur to the wheel sensor. When the distance data of at least one eddy current displacement sensor on the wheel sensor is detected to be abnormal, but the distance data of the eddy current displacement sensor on the central line of the second side surface is not abnormal, manual checking reminding information needs to be output, and whether the eddy current displacement sensor is out of order or the wheel sensor is indeed dropped is confirmed in a manual checking mode.
When the distance data of the eddy current displacement sensor on the center line of the second side is abnormal, and the possible falling type of the wheel sensor is difficult to confirm, the embodiment can judge whether the wheel sensor has the possibility of falling inwards or outwards according to the distance data of the eddy current displacement sensor on the center line of the first side. If the probability of the internal inclination falling off or the external inclination falling off exists, the distance data of the eddy current displacement sensors on the left side and the right side of the central line of the first side can be synthesized, and whether the wheel sensor has the probability of the internal inclination falling off or the external inclination falling off or not can be further determined; if the possibility of falling off from the inner side or falling off from the outer side is not provided, the distance data of the eddy current displacement sensors on the left side and the right side of the center line of the second side can be synthesized, and whether the wheel sensor has the possibility of falling off from both sides or falling off from one side can be further judged.
According to another method for detecting the falling off of the wheel sensor provided in the embodiment of the present application, if the target side may include the first side, the fourth step may include:
if the distance data of at least one eddy current displacement sensor on the side of the target is abnormal, determining that the future falling-off type of the wheel sensor is an inward falling-off or an outward falling-off.
The first side surface can be a surface of the wheel sensor opposite to the rail web side surface of the steel rail, so that when the abnormality of the distance data of one eddy current displacement sensor on the wheel sensor is detected and the abnormality of the distance data of at least one eddy current displacement sensor on the first side surface is detected, the future falling-off type of the wheel sensor can be determined to be falling-in falling-off or falling-out falling-off.
According to another method for detecting a wheel sensor falling off provided in an embodiment of the present application, if the target side surface may include the second side surface, the fourth step may include:
if the distance data of at least one eddy current displacement sensor on the side of the target is abnormal, determining that the future falling type of the wheel sensor is double-side falling or single-side falling.
The second side surface can be a surface of the wheel sensor opposite to the upper surface of the rail bottom of the steel rail, and when the abnormality of the distance data of one eddy current displacement sensor on the wheel sensor is detected and the abnormality of the distance data of at least one eddy current displacement sensor on the second side surface is detected, the future falling type of the wheel sensor can be determined to be double-side falling or single-side falling.
Corresponding to the method for detecting the falling off of the wheel sensor provided by the embodiment of the application, the embodiment of the application also provides a system for detecting the falling off of the wheel sensor.
As shown in fig. 6, the embodiment of the present application further provides a system for detecting a wheel sensor falling off, where the system for detecting a wheel sensor falling off may include:
an acquisition unit 100 for controlling the controller to acquire a plurality of distance data acquired by the eddy current displacement sensor in the dropout detection apparatus of the wheel sensor in the above-described embodiment;
and the judging unit 110 is used for controlling the controller to judge the falling-off condition of the wheel sensor according to the plurality of distance data.
In another system for detecting a wheel sensor falling off provided according to an embodiment of the present application, the determining unit 110 may include:
if the abnormality of the distance data of one eddy current displacement sensor on the wheel sensor is detected, triggering a first distance judging subunit and a falling type judging subunit,
a first distance judging subunit for judging whether the first distance data of the eddy current displacement sensor arranged on the center line of the target side surface is abnormal, wherein the target side surface comprises at least one of a first side surface and a second side surface;
And the falling type judging subunit is used for determining the future falling type of the wheel sensor based on the judging result of whether abnormality occurs or not and the distance data of other eddy current displacement sensors.
In another embodiment of the present application, if the target side includes a first side and a second side, the drop-off type determining subunit may be specifically configured to:
if the distance data of the eddy current displacement sensor on the center line of the second side surface is not abnormal, outputting manual investigation prompt information;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensor on the central line of the second side surface is abnormal, the distance data of the eddy current displacement sensor on the central line of the first side surface is abnormal, and the distance data of at least one eddy current displacement sensor on the left side and the right side of the central line of the first side surface is abnormal, determining that the future falling-off type of the wheel sensor is inward falling-off or outward falling-off;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensor on the central line of the second side face is abnormal, the distance data of the eddy current displacement sensor on the central line of the first side face is not abnormal, and the distance data of at least one eddy current displacement sensor on the left side and the right side of the central line of the second side face is abnormal, determining that the future falling type of the wheel sensor is double-side falling or single-side falling;
And/or the number of the groups of groups,
if the distance data of the eddy current displacement sensors on the central line of the second side face are abnormal, the distance data of the eddy current displacement sensors on the central line of the first side face are abnormal, and the distance data of the eddy current displacement sensors on the left side and the right side of the central line of the first side face are not abnormal, outputting manual investigation prompt information;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensors on the center line of the second side face are abnormal, the distance data of the eddy current displacement sensors on the center line of the first side face are not abnormal, and the distance data of the eddy current displacement sensors on the left side and the right side of the center line of the second side face are not abnormal, outputting manual investigation prompt information.
In another embodiment of the present application, if the target side includes the first side, the drop-off type determining subunit may be specifically configured to:
if the distance data of at least one eddy current displacement sensor on the side of the target is abnormal, determining that the future falling-off type of the wheel sensor is an inward falling-off or an outward falling-off.
In another embodiment of the present application, if the target side includes the second side, the drop-off type determining subunit may be specifically configured to:
If the distance data of at least one eddy current displacement sensor on the side of the target is abnormal, determining that the future falling type of the wheel sensor is double-side falling or single-side falling.
The embodiment of the application also provides a wheel sensor, which can comprise the falling-off detection device of the wheel sensor in the embodiment.
The embodiment of the application also provides a readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of any of the above-mentioned drop detection methods of the wheel sensor.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, the device includes one or more processors (CPUs), memory, and a bus. The device may also include input/output interfaces, network interfaces, and the like.
The memory may include volatile memory, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), in a computer readable storage medium, the memory including at least one memory chip. Memory is an example of a computer-readable medium.
Computer-readable storage media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments in part.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (10)
1. The falling-off detection device of the wheel sensor is characterized by comprising a plurality of eddy current displacement sensors arranged on a first side surface of the wheel sensor and a plurality of eddy current displacement sensors arranged on a second side surface of the wheel sensor, wherein the first side surface is a surface of the wheel sensor opposite to a rail web side surface of a steel rail, and the second side surface is a surface of the wheel sensor opposite to a rail bottom upper surface of the steel rail;
The probe connecting lines of the eddy current displacement sensors arranged on the first side face are parallel to the first side face, at least one eddy current displacement sensor is arranged on the central line of the first side face, at least one eddy current displacement sensor is arranged on at least one of the left side and the right side of the central line of the first side face, and the central line of the first side face is perpendicular to the extending direction of the steel rail;
the probe connecting lines of the eddy current displacement sensors arranged on the second side face are parallel to the second side face, at least one eddy current displacement sensor is arranged on the central line of the second side face, at least one eddy current displacement sensor is arranged on at least one of the left side and the right side of the central line of the second side face, and the central line of the second side face is perpendicular to the extending direction of the steel rail;
the falling detection device further comprises a controller, and the output end of each eddy current displacement sensor is in communication connection with the controller.
2. The drop detection device of a wheel sensor according to claim 1, wherein,
the power input end of each eddy current displacement sensor is electrically connected with the power supply circuit of the wheel sensor.
3. The method for detecting the falling off of the wheel sensor is characterized by comprising the following steps of:
a controller acquires a plurality of distance data acquired by the eddy current displacement sensor in the dropout detection means of a wheel sensor according to claim 1 or 2;
and the controller judges the falling-off condition of the wheel sensor according to the plurality of distance data.
4. The method for detecting the drop-out of the wheel sensor according to claim 3, wherein the determining the drop-out of the wheel sensor based on the plurality of distance data includes:
if the distance data of one eddy current displacement sensor is detected to be abnormal, judging whether first distance data of the eddy current displacement sensor arranged on the central line of the side face of the target is abnormal or not, wherein the side face of the target comprises at least one of the first side face and the second side face;
and determining the future falling type of the wheel sensor based on the judging result of whether the abnormality occurs and the distance data of other eddy current displacement sensors.
5. The method according to claim 4, wherein if the target side surface includes the first side surface and the second side surface, the determining the future drop-off type of the wheel sensor based on the determination result of whether the abnormality occurs and distance data of other eddy current displacement sensors includes:
If the distance data of the eddy current displacement sensor on the center line of the second side surface is not abnormal, outputting manual investigation prompt information;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, the distance data of the eddy current displacement sensor on the center line of the first side surface is abnormal, and the distance data of at least one eddy current displacement sensor on the left side and the right side of the center line of the first side surface is abnormal, determining that the future falling type of the wheel sensor is an inward falling type or an outward falling type;
and/or the number of the groups of groups,
if the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, the distance data of the eddy current displacement sensor on the center line of the first side surface is not abnormal, and the distance data of at least one eddy current displacement sensor on the left side and the right side of the center line of the second side surface is abnormal, determining that the future falling type of the wheel sensor is double-side falling or single-side falling;
and/or the number of the groups of groups,
outputting the manual investigation prompt information if the distance data of the eddy current displacement sensor on the central line of the second side surface is abnormal, the distance data of the eddy current displacement sensor on the central line of the first side surface is abnormal, and the distance data of a plurality of eddy current displacement sensors on the left side and the right side of the central line of the first side surface are not abnormal;
And/or the number of the groups of groups,
if the distance data of the eddy current displacement sensors on the central line of the second side face are abnormal, the distance data of the eddy current displacement sensors on the central line of the first side face are not abnormal, and the distance data of the eddy current displacement sensors on the left side and the right side of the central line of the second side face are not abnormal, outputting the manual investigation prompt information.
6. The method according to claim 4, wherein if the target side includes the first side, the determining the future drop-off type of the wheel sensor based on the determination result of whether the abnormality occurs and distance data of other eddy current displacement sensors includes:
and if the distance data of at least one eddy current displacement sensor on the side of the target is abnormal, determining that the future falling type of the wheel sensor is an inward falling type or an outward falling type.
7. The method according to claim 4, wherein if the target side includes the second side, the determining the future drop-off type of the wheel sensor based on the determination result of whether the abnormality occurs and distance data of other eddy current displacement sensors includes:
And if the distance data of at least one eddy current displacement sensor on the side of the target is abnormal, determining that the future falling type of the wheel sensor is double-side falling or single-side falling.
8. A dropout detection system of a wheel sensor, characterized in that the dropout detection system of a wheel sensor comprises:
an acquisition unit for controlling a controller to acquire a plurality of distance data acquired by the eddy current displacement sensor in the dropout detection apparatus of a wheel sensor according to claim 1 or 2;
and the judging unit is used for controlling the controller to judge the falling-off condition of the wheel sensor according to the plurality of distance data.
9. A wheel sensor comprising the drop detection device of the wheel sensor according to claim 1 or 2.
10. A readable storage medium having stored thereon a computer program, which, when executed by a processor, implements the steps of the drop-off detection method of a wheel sensor according to any one of claims 3-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311774490.6A CN117533368A (en) | 2023-12-21 | 2023-12-21 | Wheel sensor and falling detection device, method and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311774490.6A CN117533368A (en) | 2023-12-21 | 2023-12-21 | Wheel sensor and falling detection device, method and system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN117533368A true CN117533368A (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311774490.6A Pending CN117533368A (en) | 2023-12-21 | 2023-12-21 | Wheel sensor and falling detection device, method and system thereof |
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| Country | Link |
|---|---|
| CN (1) | CN117533368A (en) |
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2023
- 2023-12-21 CN CN202311774490.6A patent/CN117533368A/en active Pending
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