Wheel sensor and wheel sensor dropout detection device, method and system

Abstract

The present application discloses a wheel sensor and a wheel sensor detachment detection device, method and system. The device includes: a first side with multiple eddy current displacement sensors, a second side with multiple eddy current displacement sensors, the first side being the opposite side of the rail waist side, and the second side being the opposite side of the rail bottom upper surface. The connection line of the multiple eddy current displacement sensor probes on the first side is parallel to the first side, the center line of the first side has at least one eddy current displacement sensor, and at least one eddy current displacement sensor is located on at least one of the left and right sides of the center line; the connection line of the multiple eddy current displacement sensor probes on the second side is parallel to the second side, the center line of the second side has at least one eddy current displacement sensor, and at least one eddy current displacement sensor is located on at least one of the left and right sides of the center line, and the center lines are all perpendicular to the extension direction of the rail; the eddy current displacement sensors are connected to the controller. The present application improves the timely detection of the installation status of the wheel sensor.

Description

Technical Field

[0001] The present application relates to the field of railway operation and maintenance, and more specifically, to a wheel sensor and a wheel sensor detachment detection device, method and system. Background Art

[0002] Wheel sensors are a crucial component of axle counting equipment and can be used to check for occupied / unoccupied sections. Wheel sensors can be installed on the inside of rails using custom brackets. However, regular inspections of wheel sensors are necessary due to the risk of them falling off. This can cause the axle counting equipment to miscount axles, and in severe cases, even lose its function, impacting normal train operation. Current measures to prevent wheel sensors from falling off include tightening or optimizing mounting brackets and regular inspections by maintenance personnel. However, these measures all suffer from the drawback of untimely maintenance. Therefore, timely detection of wheel sensor installation status is a pressing technical issue. Summary of the Invention

[0003] In view of this, the present application provides a wheel sensor and a wheel sensor detachment detection device, method and system for solving the problem of difficulty in timely detecting the installation status of the wheel sensor.

[0004] In order to achieve the above objectives, the following solutions are proposed:

[0005] A wheel sensor dropout detection device, comprising a plurality of eddy current displacement sensors disposed on a first side surface of the wheel sensor and a plurality of eddy current displacement sensors disposed on a second side surface of the wheel sensor, wherein the first side surface is a surface of the wheel sensor that faces a side surface of a rail web, and the second side surface is a surface of the wheel sensor that faces an upper surface of a rail base.

[0006] A connection line of the plurality of eddy current displacement sensors disposed on the first side surface is parallel to the first side surface, at least one eddy current displacement sensor is disposed on a center line of the first side surface, at least one eddy current displacement sensor is disposed on at least one of the left and right sides of the center line of the first side surface, and the center line of the first side surface is perpendicular to an extension direction of the rail;

[0007] A connection line of the plurality of eddy current displacement sensors disposed on the second side surface is parallel to the second side surface, at least one eddy current displacement sensor is disposed on a centerline of the second side surface, at least one eddy current displacement sensor is disposed on at least one of the left and right sides of the centerline of the second side surface, and the centerline of the second side surface is perpendicular to an extension direction of the rail;

[0008] The fall-off detection device further includes a controller, and the output end of each of the eddy current displacement sensors is communicatively connected to the controller.

[0009] Optional,

[0010] The power input end of each of the eddy current displacement sensors is electrically connected to the power supply circuit of the wheel sensor.

[0011] A method for detecting the loss of a wheel sensor, comprising:

[0012] The controller obtains a plurality of distance data collected by the eddy current displacement sensor in the wheel sensor fall-off detection device;

[0013] The controller determines the detachment status of the wheel sensor according to the multiple distance data.

[0014] Optionally, determining the detachment status of the wheel sensor according to the plurality of distance data includes:

[0015] If an abnormality is detected in the distance data of one eddy current displacement sensor, determining whether an abnormality occurs in the first distance data of the eddy current displacement sensor disposed on the center line of the target side surface, the target side surface including at least one of the first side surface and the second side surface;

[0016] The future detachment type of the wheel sensor is determined based on the determination result of whether the abnormality occurs and the distance data of other eddy current displacement sensors.

[0017] Optionally, if the target side includes the first side and the second side, determining the future detachment type of the wheel sensor based on the result of the determination of whether the abnormality occurs and the distance data of other eddy current displacement sensors includes:

[0018] If the distance data of the eddy current displacement sensor on the center line of the second side surface is normal, output a manual troubleshooting prompt message;

[0019] and / or,

[0020] 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 and right sides of the center line of the first side surface is abnormal, it is determined that the future loss type of the wheel sensor is inboard loss or camber loss;

[0021] and / or,

[0022] 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 normal, and the distance data of at least one eddy current displacement sensor on the left and right sides of the center line of the second side surface is abnormal, then it is determined that the future shedding type of the wheel sensor is bilateral shedding or unilateral shedding;

[0023] and / or,

[0024] If the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, and 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 the multiple eddy current displacement sensors on the left and right sides of the center line of the first side surface are normal, then the manual troubleshooting prompt information is output;

[0025] and / or,

[0026] 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 the multiple eddy current displacement sensors on the left and right sides of the center line of the second side surface are not abnormal, the manual troubleshooting prompt information is output.

[0027] Optionally, if the target side includes the first side, determining the future detachment type of the wheel sensor based on the result of the determination of whether the abnormality occurs and the distance data of other eddy current displacement sensors includes:

[0028] If the distance data of at least one eddy current displacement sensor on the target side is abnormal, it is determined that the future shedding type of the wheel sensor is inboard shedding or camber shedding.

[0029] Optionally, if the target side includes the second side, determining the future detachment type of the wheel sensor based on the result of the determination of whether the abnormality occurs and the distance data of other eddy current displacement sensors includes:

[0030] If the distance data of at least one eddy current displacement sensor on the target side is abnormal, it is determined that the future shedding type of the wheel sensor is bilateral shedding or unilateral shedding.

[0031] A wheel sensor dropout detection system, comprising:

[0032] an acquiring unit, configured to control a controller to acquire a plurality of distance data collected by the eddy current displacement sensor in the aforementioned wheel sensor fall-off detection device;

[0033] A judgment unit is used to control the controller to judge the detachment status of the wheel sensor according to the multiple distance data.

[0034] A wheel sensor comprises the above-mentioned wheel sensor dropout detection device.

[0035] A readable storage medium stores a computer program thereon, wherein when the computer program is executed by a processor, each step of the shedding detection method as described in any one of the above items is implemented.

[0036] The present application provides a wheel sensor and a wheel sensor detachment detection device, method, and system. The detachment detection device includes multiple eddy current displacement sensors on both the first and second side surfaces of the wheel sensor, which are used to monitor in real time whether the distance between the first side surface of the wheel sensor and the side surface of the rail waist, and the distance between the wheel sensor and the upper surface of the rail bottom, has changed. The present application can monitor the distance between the wheel sensor and the rail in real time using eddy current displacement sensors, and determine in real time whether the position of the wheel sensor is abnormal, thereby effectively improving the timely detection of the wheel sensor status. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0038] Figure 1 A schematic structural diagram of a wheel sensor dropout detection device provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of a wheel sensor installation provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of the structure of a fastening screw of a mounting bracket provided in an embodiment of the present application;

[0041] Figure 4 A schematic structural diagram of a fastening screw for another mounting bracket provided in an embodiment of the present application;

[0042] Figure 5 A schematic flow chart of a method for detecting wheel sensor detachment provided in an embodiment of the present application;

[0043] Figure 6 A schematic structural diagram of a wheel sensor detachment detection system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0045] In the existing technology, there are two measures to prevent wheel sensors from falling off: locking or optimizing the mounting bracket and regular inspection by operation and maintenance personnel. However, both measures have disadvantages such as untimely maintenance, lack of intelligence, and waste of human and material resources.

[0046] like Figure 1 As shown, an embodiment of the present application provides a wheel sensor dropout detection device, which may include multiple eddy current displacement sensors (1, 2, and 3) arranged on a first side surface 001 of the wheel sensor, and multiple eddy current displacement sensors (4, 5, and 6) arranged on a second side surface 002 of the wheel sensor, wherein the first side surface 001 is a surface of the wheel sensor opposite to the side surface of the rail waist, and the second side surface is a surface of the wheel sensor opposite to the upper surface of the rail bottom;

[0047] The probe connection lines of the multiple eddy current displacement sensors provided on the first side surface 001 are parallel to the first side surface 001. At least one eddy current displacement sensor is provided on the center line of the first side surface 001. At least one eddy current displacement sensor is provided on at least one of the left and right sides of the center line of the first side surface 001. The center line of the first side surface 001 is perpendicular to the extension direction of the rail.

[0048] The connection line of the multiple eddy current displacement sensors provided on the second side surface 002 is parallel to the second side surface 002. At least one eddy current displacement sensor is provided on the center line of the second side surface 002. At least one eddy current displacement sensor is provided on at least one of the left and right sides of the center line of the second side surface 002. The center line of the second side surface 002 is perpendicular to the extension direction of the rail.

[0049] The fall-off detection device may further include a controller, and the output end of each eddy current displacement sensor may be communicatively connected to the controller.

[0050] Eddy current displacement sensors are non-contact linear metrology tools based on the law of electromagnetic induction. They can measure the distance between a probe and an object, both statically and dynamically, without contacting the object. Eddy current displacement sensors can consist of three components: a probe, an extension cable, and a signal conditioning module. The probe can be mounted on the surface of an object, parallel to the surface, to detect the distance between the object and other metal surfaces. The signal conditioning module amplifies, filters, and digitizes the signal detected by the detection coil in the probe to facilitate subsequent data analysis and processing. Specifically, the weak electrical signal detected by the detection coil is amplified to overcome losses and noise interference during signal transmission. The signal is then smoothed using a filter to remove noise and interference, improving the signal-to-noise ratio. Finally, digitization converts the analog signal into a digital signal for computer processing and analysis. Eddy current displacement sensors can be mounted on wheel sensors to detect the distance between the wheel sensor and the rail. Alternatively, the eddy current displacement sensor can be potted within the wheel sensor, with the probe surface parallel to the wheel sensor surface.

[0051] The wheel sensor can be installed on the inside of the rail using a custom mounting bracket. It can accurately identify the wheel or a sensor plate with wheel characteristics. The premise for accurate identification is that the upper surface of the wheel sensor is parallel to the rail surface, the two sides are perpendicular to the rail surface, and it maintains a fixed distance from the rail. Specifically, the first side surface 001 of the wheel sensor can be at a fixed distance from the side surface of the rail waist; the second side surface 002 of the wheel sensor can be at a fixed distance from the upper surface of the rail bottom, where, for example, Figure 2 As shown, the shaded portion is the mounting bracket of the wheel sensor, and the first side can be as shown in FIG. Figure 2 As shown in 001, the side of the rail waist can be as follows Figure 2 003 shown; the second side can be as Figure 2 As shown in 002, the upper surface of the rail bottom can be as follows Figure 2 004 shown.

[0052] If the wheel sensor has the potential to fall off, the distance between the second side surface 002 of the wheel sensor and the upper surface of the rail base will change. However, if the wheel sensor's potential fall-off type is tilting or inward, the change in the distance between the second side surface 002 and the upper surface of the rail base is not significant. Therefore, it is difficult to determine whether the fall-off type is tilting or inward based solely on the distance between the second side surface 002 of the wheel sensor and the upper surface of the rail base. Therefore, in this embodiment, multiple eddy current displacement sensors can be installed on the second side surface 002 of the wheel sensor, and multiple eddy current displacement sensors can also be installed on the first side surface 001 of the wheel sensor to facilitate comprehensive detection of various possible wheel sensor fall-off types or combinations of fall-off types. Among them, when setting the eddy current displacement sensor, due to the special position of the center line on the surface of the wheel sensor (when the wheel sensor has the possibility of unilateral detachment, bilateral detachment, backward detachment or inward detachment, the distance of the center line position will change), an eddy current displacement sensor can be set on the center line of the first side 001 and the center line of the second side 002 of the wheel sensor to monitor the wheel sensor. In order to determine the future detachment type of the wheel sensor with high accuracy, multiple eddy current displacement sensors can be optionally set on the left and right sides of the center line. In this embodiment, an eddy current displacement sensor is set on each side of the left and right sides of the center line of the first side 001; and an eddy current displacement sensor is set on each side of the left and right sides of the center line of the second side 002.

[0053] This embodiment can use the controller to amplify, filter, and digitize the signals detected by the eddy current displacement sensor probe to facilitate subsequent data analysis and processing. This embodiment can also use the eddy current displacement sensor to calibrate the wheel sensor installation position to ensure the accuracy and reliability of the measurement results.

[0054] In another wheel sensor dropout detection device provided according to an embodiment of the present application, the power input end of each eddy current displacement sensor is electrically connected to the power supply circuit of the wheel sensor.

[0055] Among them, this embodiment can connect the power input end of the eddy current displacement sensor to the power supply circuit of the wheel sensor, so that after the wheel sensor is powered on, the eddy current displacement sensor can also start to monitor the installation status or installation position (distance) of the wheel sensor in real time.

[0056] The present embodiment provides a wheel sensor detachment detection device, wherein a plurality of eddy current displacement sensors are installed on both the first side surface 001 and the second side surface 002 of the wheel sensor. The device is used to monitor in real time whether the distance between the first side surface 001 of the wheel sensor and the side surface of the rail waist, and whether the distance between the wheel sensor and the upper surface of the rail bottom has changed. The present invention can monitor the distance between the wheel sensor and the rail in real time using the eddy current displacement sensors, and determine in real time whether the position of the wheel sensor is abnormal, thereby effectively improving the timely detection of the wheel sensor installation status.

[0057] Furthermore, this embodiment uses a sensor to detect all possible wheel sensor detachment situations. On the one hand, the eddy current displacement sensor and the wheel sensor are in different frequency bands, do not affect each other, and work independently. On the other hand, multiple eddy current displacement sensors are encapsulated inside the non-metallic shell of the wheel sensor, without being affected by other metals. In addition, this embodiment is equipped with multiple eddy current displacement sensors, which can determine more complex detachment situations, effectively reducing the occurrence of detachment misjudgments caused by displacement due to train vibration, and increasing stability and detection accuracy. The eddy current sensor probe faces the waist and bottom of the rail, and is not affected by the wheels, sensor plates, and hanging objects when passing through the train, which can affect the detachment judgment of the wheel sensor.

[0058] The present application also provides a method for detecting a wheel sensor falling off. The method may include steps 1 and 2:

[0059] Step 1: The controller obtains a plurality of distance data collected by the eddy current displacement sensor in the wheel sensor shedding detection device in the above embodiment;

[0060] Step 2: The controller determines the shedding condition of the wheel sensor based on multiple distance data.

[0061] Among them, Figure 3 and Figure 4 As shown, the wheel sensor can be mounted on the inner side of the rail through a mounting bracket. The mounting bracket can have multiple fastening screws ( Figure 3 and Figure 4 1, 2, 3, 4, 5, 6 and 7) in the figure are fixed. The loosening of the fastening screws may lead to the possible falling type of the wheel sensor. Furthermore, the loosening of the fastening screws at different positions may lead to different possible falling types of the wheel sensor. The specific situation can be shown in the falling type table in Table 1.

[0062] Table 1 Shedding Type Table

[0063] Shedding type Loose fastening screws Unilateral shedding 3 or 4 Bilateral shedding 3 and 4 Inward shedding / outward shedding 1, 2, 5, 6, 7 and various combinations

[0064] Since the fastening screws are loose, the distance between the wheel sensor and the rail changes. In this embodiment, the wheel sensor detachment condition can be determined based on the change in distance data collected by multiple eddy current displacement sensors on the wheel sensor. The detachment condition can include the detachment type of the wheel sensor that may detach.

[0065] The eddy current displacement sensor can be powered by the wheel sensor power supply circuit, and the main circuit collects data returned by the eddy current displacement sensor probe in real time. The eddy current displacement sensor probe can first detect the original distance between the wheel sensor and the side of the rail waist when installation is complete (in a 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 a laboratory environment, the original distance measurement value can be 5.7 cm). Under normal operating conditions (the two types of distances float within the preset range of the original distances), the current calibration value can be output; when there is a possibility of unilateral shedding, bilateral shedding, inward shedding, or outward shedding, at least one of the two types of distance data collected by the main circuit deviates (at least one of the two types of distance data exceeds the preset range of the original distance), and an abnormal current value is output. If the abnormal current value is output briefly, it can be considered that the fastening screws of the mounting bracket have loosened, causing the wheel sensor to have the possibility of falling off; if the abnormal current value is output continuously for a long time, it can be considered that the wheel sensor has fallen off.

[0066] Furthermore, in this embodiment, a plurality of eddy current displacement sensors can be connected to an indoor axle counter monitoring system via a cable, so that the distance information between the wheel sensor and the rail can be converted into an electrical signal and then transmitted to the host in the indoor axle counter monitoring system for logical processing. The indoor axle counter monitoring system can process the real-time data sent by the eddy current displacement sensor and make a judgment on whether the wheel sensor has unilateral detachment, bilateral detachment, inward detachment or outward detachment, or output a manual inspection reminder message. Specifically, after the electrical signal of the eddy current displacement sensor is transmitted indoors, it can be evaluated and processed by the indoor axle counter monitoring equipment, and the electrical signal can be processed into a data packet. Internal communication is carried out with the indoor axle counter monitoring system via the CAN bus. After the indoor axle counter monitoring system obtains the data packet, it performs logical operations on it to determine the detachment situation of the wheel sensor (the detachment situation can include the future detachment type of the wheel sensor and the detachment type that has already occurred). Among them, the indoor axle counting monitoring system can provide a rich human-computer interaction interface, which can realize the display of station section status information, real-time data display, real-time alarm display, communication status monitoring, host status monitoring, historical data playback, historical alarm display, curve drawing and intelligent diagnosis and other functions.

[0067] The present embodiment provides a method for detecting the detachment of a wheel sensor, which can determine the possible detachment type of the wheel sensor in real time through the distance data collected in real time by the eddy current displacement sensor, and can effectively improve the timely detection of the installation status of the wheel sensor.

[0068] Furthermore, the method introduces an eddy current displacement sensor to judge possible unilateral shedding, bilateral shedding, inward shedding, outward shedding or a combination of the above shedding situations, and transmits an abnormal signal to an indoor axle counting monitoring system when the wheel sensor has not completely detached or has completely detached. The indoor axle counting monitoring system issues an alarm message (which may include the possible shedding type of the wheel sensor, the position of the wheel sensor that has detached and the shedding type that has detached), and then notifies relevant operation and maintenance personnel to perform timely maintenance.

[0069] According to another wheel sensor detachment detection method provided in an embodiment of the present application, the above-mentioned step 2 may include steps 3 and 4:

[0070] If the distance data of an eddy current displacement sensor on the wheel sensor is detected to be abnormal, then execute steps 3 and 4;

[0071] Step 3: Determine whether the first distance data of the eddy current displacement sensor disposed on the center line of the target side surface is abnormal, where the target side surface includes at least one of the first side surface and the second side surface;

[0072] Step 4: Determine the future fall-off type of the wheel sensor based on the result of the determination of whether an abnormality has occurred and the distance data of other eddy current displacement sensors.

[0073] Due to the unique nature of the centerline, if an abnormality is detected in the distance data from at least one eddy current displacement sensor on a wheel sensor, it is first determined whether the abnormality is occurring in the distance data from the eddy current displacement sensor located at the centerline. If the abnormality is determined to be occurring in the distance data from the eddy current displacement sensor located at the centerline, the type of wheel sensor loss can be determined by combining the data from multiple eddy current displacement sensors on both sides of the centerline.

[0074] If the distance data of the eddy current displacement sensor at the centerline position is not abnormal but an abnormality is detected in the distance data of the eddy current displacement sensor, it can be considered that the eddy current displacement sensor itself is faulty or the internal distance data processing module of the wheel sensor is faulty, and a manual troubleshooting reminder message is output to provide manual troubleshooting for staff.

[0075] Furthermore, when multiple eddy current displacement sensors are provided on the first side surface and multiple eddy current displacement sensors are provided on the second side surface, this embodiment can first determine whether it is necessary to output manual troubleshooting reminder information based on the distance situation of the eddy current displacement sensors on the center line of the second side surface, and then determine the future type of wheel sensor detachment based on the distance situation of the eddy current displacement sensors on the center line of the first side surface and further based on the distance data of the eddy current displacement sensors on both sides of the center line of the target side surface.

[0076] Specifically, such as Figure 5 As shown,

[0077] If the distance data of the eddy current displacement sensor on the center line of the second side surface is normal, a manual troubleshooting prompt message is output;

[0078] and / or,

[0079] 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 and right sides of the center line of the first side surface is abnormal, it is determined that the future loss type of the wheel sensor is inboard loss or camber loss;

[0080] and / or,

[0081] 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 normal, and the distance data of at least one eddy current displacement sensor on the left and right sides of the center line of the second side surface is abnormal, then the future shedding type of the wheel sensor is determined to be bilateral shedding or unilateral shedding;

[0082] and / or,

[0083] If the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, and 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 multiple eddy current displacement sensors on the left and right sides of the center line of the first side surface are normal, a manual troubleshooting prompt message is output;

[0084] and / or,

[0085] If the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, and 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 multiple eddy current displacement sensors on the left and right sides of the center line of the second side surface are not abnormal, a manual troubleshooting prompt message is output.

[0086] Due to the specific location of the eddy-current displacement sensor on the centerline of the second side surface, each type of wheel sensor detachment may cause changes in the distance data of the eddy-current displacement sensor on the centerline of the second side surface. Therefore, if an abnormality is detected in the distance data of at least one eddy-current displacement sensor on the wheel sensor, but the distance data of the eddy-current displacement sensor on the centerline of the second side surface is not abnormal, a manual troubleshooting reminder message is output to confirm whether an eddy-current displacement sensor failure has occurred or whether the wheel sensor has indeed detached.

[0087] When the distance data from the eddy current displacement sensor on the centerline of the second side surface is abnormal, making it difficult to determine the type of wheel sensor disengagement that may have occurred, this embodiment can determine whether the wheel sensor has the possibility of inward or outward disengagement based on the distance data from the eddy current displacement sensor on the centerline of the first side surface. If the possibility of inward or outward disengagement is present, the distance data from the eddy current displacement sensors on the left and right sides of the centerline of the first side surface can be combined to further determine whether the wheel sensor has the possibility of inward or outward disengagement. If the possibility of inward or outward disengagement is not present, the distance data from the eddy current displacement sensors on the left and right sides of the centerline of the second side surface can be combined to further determine whether the wheel sensor has the possibility of bilateral or unilateral disengagement.

[0088] According to another wheel sensor detachment detection method provided by an embodiment of the present application, if the target side surface may include the first side surface, the above step 4 may include:

[0089] If the distance data of at least one eddy current displacement sensor on the target side is abnormal, it is determined that the future shedding type of the wheel sensor is inboard shedding or camber shedding.

[0090] Among them, since the first side surface can be the surface opposite to the wheel sensor and the side surface of the rail waist, when it is detected that the distance data of an eddy current displacement sensor on the wheel sensor is abnormal and the distance data of at least one eddy current displacement sensor on the first side surface is abnormal, it can be determined that the future detachment type of the wheel sensor is inward detachment or outward detachment.

[0091] According to another wheel sensor detachment detection method provided by an embodiment of the present application, if the target side surface may include the second side surface, the above step 4 may include:

[0092] If the distance data of at least one eddy current displacement sensor on the target side is abnormal, it is determined that the future shedding type of the wheel sensor is bilateral shedding or unilateral shedding.

[0093] Among them, since the second side surface can be the surface opposite to the wheel sensor and the upper surface of the rail bottom, when it is detected that the distance data of an eddy current displacement sensor on the wheel sensor is abnormal and the distance data of at least one eddy current displacement sensor on the second side surface is abnormal, it can be determined that the future detachment type of the wheel sensor is bilateral detachment or unilateral detachment.

[0094] Corresponding to the method for detecting the detachment of a wheel sensor provided in the embodiment of the present application, the embodiment of the present application also provides a system for detecting the detachment of a wheel sensor.

[0095] like Figure 6 As shown, the embodiment of the present application further provides a wheel sensor loss detection system, which may include:

[0096] An acquisition unit 100 is configured to control a controller to acquire a plurality of distance data collected by an eddy current displacement sensor in the wheel sensor fall-off detection device in the above embodiment;

[0097] The judgment unit 110 is used to control the controller to judge the detachment status of the wheel sensor according to the multiple distance data.

[0098] In another wheel sensor dropout detection system provided by an embodiment of the present application, the judgment unit 110 may include:

[0099] If the distance data of an eddy current displacement sensor on the wheel sensor is detected to be abnormal, the first distance judgment subunit and the shedding type judgment subunit are triggered.

[0100] a first distance judgment subunit, configured to judge whether a first distance data of an eddy current displacement sensor disposed on a center line of a target side surface is abnormal, wherein the target side surface includes at least one of the first side surface and the second side surface;

[0101] The shedding type judgment subunit is used to determine the future shedding type of the wheel sensor based on the judgment result of whether an abnormality occurs and the distance data of other eddy current displacement sensors.

[0102] According to another wheel sensor fall-off detection system provided by an embodiment of the present application, if the target side includes a first side and a second side, the fall-off type determination subunit may be specifically configured as follows:

[0103] If the distance data of the eddy current displacement sensor on the center line of the second side surface is normal, a manual troubleshooting prompt message is output;

[0104] and / or,

[0105] 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 and right sides of the center line of the first side surface is abnormal, it is determined that the future loss type of the wheel sensor is inboard loss or camber loss;

[0106] and / or,

[0107] 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 normal, and the distance data of at least one eddy current displacement sensor on the left and right sides of the center line of the second side surface is abnormal, then the future shedding type of the wheel sensor is determined to be bilateral shedding or unilateral shedding;

[0108] and / or,

[0109] If the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, and 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 multiple eddy current displacement sensors on the left and right sides of the center line of the first side surface are normal, a manual troubleshooting prompt message is output;

[0110] and / or,

[0111] If the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, and 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 multiple eddy current displacement sensors on the left and right sides of the center line of the second side surface are not abnormal, a manual troubleshooting prompt message is output.

[0112] According to another wheel sensor fall-off detection system provided by an embodiment of the present application, if the target side includes the first side, the fall-off type determination subunit may be specifically configured as follows:

[0113] If the distance data of at least one eddy current displacement sensor on the target side is abnormal, it is determined that the future shedding type of the wheel sensor is inboard shedding or camber shedding.

[0114] According to another wheel sensor fall-off detection system provided by an embodiment of the present application, if the target side surface includes the second side surface, the fall-off type determination subunit may be specifically configured as follows:

[0115] If the distance data of at least one eddy current displacement sensor on the target side is abnormal, it is determined that the future shedding type of the wheel sensor is bilateral shedding or unilateral shedding.

[0116] An embodiment of the present application further provides a wheel sensor, which may include the wheel sensor fall-off detection device in the above embodiment.

[0117] An embodiment of the present application further provides a readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, each step of any of the above-mentioned wheel sensor detachment detection methods is implemented.

[0118] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0119] In a 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.

[0120] Memory may include non-permanent memory in a computer-readable storage medium, random access memory (RAM), and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory includes at least one memory chip. Memory is an example of a computer-readable medium.

[0121] Computer-readable storage media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media 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 disc (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0122] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0123] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. It should also be noted that the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, commodity, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, commodity, or device comprising the element.

[0124] Each embodiment in this specification is described in a related manner. Similar portions between the embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from other embodiments. In particular, the device embodiments are generally similar to the method embodiments, so their description is relatively simple. For related portions, refer to the description of the method embodiments.

[0125] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A wheel sensor dropout detection device, characterized in that: The detachment detection device includes 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 the side surface of the rail waist, and the second side surface is a surface of the wheel sensor opposite to the upper surface of the rail base of the rail; A connection line of the plurality of eddy current displacement sensors disposed on the first side surface is parallel to the first side surface, at least one eddy current displacement sensor is disposed on a center line of the first side surface, at least one eddy current displacement sensor is disposed on at least one of the left and right sides of the center line of the first side surface, and the center line of the first side surface is perpendicular to an extension direction of the rail; A connection line of the plurality of eddy current displacement sensors disposed on the second side surface is parallel to the second side surface, at least one eddy current displacement sensor is disposed on a centerline of the second side surface, at least one eddy current displacement sensor is disposed on at least one of the left and right sides of the centerline of the second side surface, and the centerline of the second side surface is perpendicular to an extension direction of the rail; The fall-off detection device further includes a controller, and the output end of each of the eddy current displacement sensors is communicatively connected to the controller.

2. The wheel sensor dropout detection device according to claim 1, characterized in that: The power input end of each of the eddy current displacement sensors is electrically connected to the power supply circuit of the wheel sensor.

3. A method for detecting the loss of a wheel sensor, characterized in that: The wheel sensor dropout detection method includes: The controller obtains a plurality of distance data collected by the eddy current displacement sensor in the wheel sensor fall-off detection device according to claim 1 or 2; The controller determines the detachment status of the wheel sensor according to the multiple distance data.

4. The wheel sensor dropout detection method according to claim 3, characterized in that: The determining, based on the plurality of distance data, whether the wheel sensor is detached includes: If an abnormality is detected in the distance data of one eddy current displacement sensor, determining whether an abnormality occurs in the first distance data of the eddy current displacement sensor disposed on the center line of the target side surface, the target side surface including at least one of the first side surface and the second side surface; The future detachment type of the wheel sensor is determined based on the determination result of whether the abnormality occurs and the distance data of other eddy current displacement sensors.

5. The wheel sensor dropout detection method according to claim 4, characterized in that: If the target side includes the first side and the second side, determining the future detachment type of the wheel sensor based on the determination result of whether the abnormality occurs and the 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 normal, output a manual troubleshooting prompt message; and / or, 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 and right sides of the center line of the first side surface is abnormal, it is determined that the future loss type of the wheel sensor is inboard loss or camber loss; and / or, 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 normal, and the distance data of at least one eddy current displacement sensor on the left and right sides of the center line of the second side surface is abnormal, then it is determined that the future shedding type of the wheel sensor is bilateral shedding or unilateral shedding; and / or, If the distance data of the eddy current displacement sensor on the center line of the second side surface is abnormal, and 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 the multiple eddy current displacement sensors on the left and right sides of the center line of the first side surface are normal, then the manual troubleshooting prompt information is output; and / or, 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 the multiple eddy current displacement sensors on the left and right sides of the center line of the second side surface are not abnormal, the manual troubleshooting prompt information is output.

6. The wheel sensor dropout detection method according to claim 4, characterized in that: If the target side surface includes the first side surface, determining the future detachment type of the wheel sensor based on the determination result of whether the abnormality occurs and the distance data of other eddy current displacement sensors includes: If the distance data of at least one eddy current displacement sensor on the target side is abnormal, it is determined that the future shedding type of the wheel sensor is inboard shedding or camber shedding.

7. The method for detecting wheel sensor detachment according to claim 4, wherein: If the target side surface includes the second side surface, determining the future detachment type of the wheel sensor based on the determination result of whether the abnormality occurs and the distance data of other eddy current displacement sensors includes: If the distance data of at least one eddy current displacement sensor on the target side is abnormal, it is determined that the future shedding type of the wheel sensor is bilateral shedding or unilateral shedding.

8. A wheel sensor fall-off detection system, characterized in that: The wheel sensor fall-off detection system includes: an acquisition unit, configured to control a controller to acquire a plurality of distance data collected by the eddy current displacement sensor in the wheel sensor fall-off detection device according to claim 1 or 2; A judgment unit is used to control the controller to judge the detachment status of the wheel sensor according to the multiple distance data.

9. A wheel sensor, characterized in that: A wheel sensor dropout detection device comprising the wheel sensor according to claim 1 or 2.

10. A readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, each step of the method for detecting the fall-off of a wheel sensor as claimed in any one of claims 3 to 7 is implemented.

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