Railway overhead line system compensation device operation monitoring equipment

Abstract

The embodiment of the invention provides monitoring equipment for operation of a railway overhead line system compensation device, which is used for solving the problems that when the displacement of a balance weight is monitored in the related technology, the monitoring is inaccurate, the timeliness is relatively low, the balance weight cannot be reported in time when the displacement of the balance weight is abnormal, and the fault of an overhead line system cannot be found in time. The connecting platform of the monitoring equipment is mounted on the side wall of the balance weight guide rod, and the mounting plane of the connecting platform is parallel to the ground; the stay wire displacement sensor comprises a main body and a stay rope; the main body is arranged on the lower surface of the balance weight; one end of the pull rope is connected with the main body, the other end of the pull rope is fixed on the upper surface of the connecting platform, and the displacement of the balance weight can be changed when the balance weight moves, so that the pull rope displacement sensor can determine the displacement of the balance weight in time, the accuracy and timeliness of balance weight displacement monitoring are improved, and when the balance weight displacement is abnormal, reporting is carried out in time; and a contact network fault can be found in time.

Description

Technical Field

[0001] The present application relates to the field of train safety technology, and in particular to a monitoring device for the operation of a railway overhead line compensation device. Background Art

[0002] The operation of trains cannot be separated from the power supply of the contact network. The contact networks are neatly distributed above the trains. They must maintain a uniform height so that the train pantograph can stably obtain electricity from the contact network. In order to ensure that the contact network is fixed at a uniform height, a certain tension needs to be applied to both ends of the contact network, and the tension is provided by the weight, which is scientifically called the contact network counterweight weight. The weight of each weight is basically fixed. Railway contact network workers will calculate the required tension according to the distance between adjacent contact networks, and add or subtract the number of counterweight weights until the tension meets the standard. The weight is only a part of the compensation device of the contact network. The compensation device consists of a pulley, a compensation rope ring rod, a weight guide rod, a weight and a weight fixing ring. When the temperature changes, the contact network wire will expand and contract due to heat and cold, and will extend or shorten. The contact network compensation device installed at both ends of the contact network can automatically adjust the wire tension and keep the wire slack to meet the technical requirements under the gravity of the counterweight weight.

[0003] The three major faults of the overhead line: fallen poles, broken wires, and collapsed networks (multiple poles collapsed) are the most concerned by the power supply section, and they are also the means to be promptly informed through the falling weight. In the relevant technology, regular manual visual inspection is used to determine whether the distance moved by the falling weight is within the safe distance, and the conclusion of "train speed reduction" or "train stop" is made after judgment. The manual visual inspection method is inaccurate and has low timeliness, and it is impossible to report the abnormality of the overhead line falling weight in the first time. Summary of the invention

[0004] The embodiments of the present application provide monitoring equipment and a monitoring method for the operation of a railway contact network compensation device, which are used to solve the problem in the related technology that when monitoring the displacement of a weight, the monitoring is inaccurate and has low timeliness, and it is impossible to report in time when the displacement of the weight is abnormal, resulting in the inability to detect contact network faults in time.

[0005] The embodiment of the present application provides a monitoring device for the operation of a railway overhead line compensation device, the monitoring device comprising: a pull-wire displacement sensor, an overhead line compensation device, the overhead line compensation device comprising a weight guide rod and a weight;

[0006] The pull-wire displacement sensor includes a main body and a pull rope, wherein the main body is arranged on the lower surface of the weight; one end of the pull rope is connected to the main body, and the other end is fixed to the upper surface of the connecting platform.

[0007] In the embodiment of the present application, the connecting platform of the monitoring equipment is installed on the side wall of the guide rod of the weight, and the installation plane of the connecting platform is parallel to the ground; the pull-wire displacement sensor includes a main body and a pull rope, and the main body is arranged on the lower surface of the weight; one end of the pull rope is connected to the main body, and the other end is fixed to the upper surface of the connecting platform. Since the displacement of the weight changes when it moves, the pull-wire displacement sensor can determine the displacement of the weight in time, improve the accuracy and timeliness of the weight displacement monitoring, and report in time when the weight displacement is abnormal, so as to detect the contact network fault in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0009] Figure 1 A schematic diagram of the structure of a monitoring device for the operation of a railway overhead line compensation device provided in an embodiment of the present application;

[0010] Figure 2 A partial enlarged view of the connection between the weight and the shell of a monitoring device provided in an embodiment of the present application;

[0011] Figure 3 A partial enlarged view of the connection between the weight and the shell of another monitoring device provided in an embodiment of the present application;

[0012] Figure 4 A partial enlarged view of a connection platform of a monitoring device provided in an embodiment of the present application;

[0013] Figure 5 A cross-sectional view of a housing of a monitoring device provided in an embodiment of the present application;

[0014] Figure 6 A cross-sectional view of a housing of another monitoring device provided in an embodiment of the present application;

[0015] Figure 7 A three-dimensional schematic diagram of the appearance of a shell provided in an embodiment of the present application;

[0016] Figure 8 A front view of the appearance of a shell provided in an embodiment of the present application;

[0017] Fig. 9 A left side view of the appearance of a shell provided in an embodiment of the present application;

[0018] Fig.10 A top view of the appearance of a housing provided in an embodiment of the present application;

[0019] Fig.11 A three-dimensional diagram of a first connector provided in an embodiment of the present application;

[0020] Fig.12 A front view of a first connector provided in an embodiment of the present application;

[0021] Fig.13 A left side view of a first connector provided in an embodiment of the present application;

[0022] Fig.14 A top view of a first connector provided in an embodiment of the present application;

[0023] Fig.15 A schematic diagram of the structure of a mainboard provided in an embodiment of the present application;

[0024] Fig.16 A schematic diagram of an overall implementation of a monitoring device provided in an embodiment of the present application;

[0025] Fig.17 A process schematic diagram of a monitoring method provided in an embodiment of the present application;

[0026] Among them, 10-pull wire displacement sensor, 101-main body of the pull wire displacement sensor, 102-pull rope of the pull wire displacement sensor, 20-connecting platform, 301-weight guide rod, 302-weight, 303-pulley, 40-shell, 50-first connector, 501-U-shaped groove, 502-shell connecting piece, 5021-U-shaped groove connecting piece, 5022-bottom connecting piece, 60-weight bottom support, 70-magnet, 80-automatic telescopic wire take-up device, 801-telescopic component, 802-safety rope, 90-processor, 110-main board, 120-temperature sensor, 130-acceleration sensor, 140-Hall sensor, 150-power supply unit. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0028] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0029] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0030] The words "connected", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "plurality" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. The terms "first", "second", "third" and the like involved in this application are merely used to distinguish similar objects, and do not represent a specific ordering of objects.

[0031] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the embodiments of this application.

[0032] The embodiment of the present application proposes a monitoring device 100 for the operation of a railway overhead line compensation device. The monitoring device 100 for the operation of a railway overhead line compensation device is described below with reference to the accompanying drawings.

[0033] Figure 1 A schematic diagram of the structure of a monitoring device for the operation of a railway overhead line compensation device provided in an embodiment of the present application. In order to better demonstrate the monitoring device, Figure 2 and Figure 3A partial enlarged view of the connection between the weight and the shell of a monitoring device provided in an embodiment of the present application, Figure 4 This is a partial enlarged view of a connection platform of a monitoring device provided in an embodiment of the present application. Figure 5 and Figure 6 A cross-sectional view of a housing of a monitoring device provided in an embodiment of the present application.

[0034] refer to Figure 1-Figure 6 The monitoring device 100 for the operation of the railway overhead line compensation device may include a wire displacement sensor 10 and an overhead line compensation device, wherein the overhead line compensation device includes a weight guide rod 301, a weight 302 and a pulley 303;

[0035] The pull-wire displacement sensor 10 includes a main body 101 and a pull rope 102 . The main body 101 is disposed on the lower surface of the weight 302 . One end of the pull rope 102 is connected to the main body 101 , and the other end is fixed at a preset position.

[0036] In order to accurately monitor the displacement of the weight, in the embodiment of the present application, the displacement of the weight can be determined by a wire displacement sensor 10. It should be noted that the weight guide rod 301, the weight 302 and the pulley 303 constitute a contact network compensation device.

[0037] The pull-wire displacement sensor 10 includes a main body 101 and a pull rope 102. The main body 101 is disposed on the lower surface of the weight 302. One end of the pull rope 102 is connected to the main body 101, and the other end of the pull rope 102 is fixed at a preset position, for example, fixed on the ground.

[0038] In order to determine the displacement of the weight, the monitoring device further comprises: a connecting platform 20;

[0039] The connecting platform 20 is installed on the side wall of the weight guide rod 301, and the installation plane of the connecting platform 20 is parallel to the ground;

[0040] The other end of the pull rope 102 is fixed to the upper surface of the connecting platform 20 .

[0041] In order to determine the displacement of the weight 302, the monitoring device also includes a connecting platform 20, which is installed on the side wall of the weight guide rod 301, and the installation plane of the connecting platform 20 is parallel to the ground, and the other end of the pull rope 302 can be fixed on the connecting platform.

[0042] For example, it can be connected to the connection platform 20 by welding or the like, and the installed pull rope 102 corresponds to the position of the weight 302. It can be directly below the weight 302 (the up and down described here are the up and down in the actual scene).

[0043] In order to accurately monitor the displacement of the weight, the monitoring device further includes: a housing 40 and a first connector 50;

[0044] The main body 101 is fixed in the housing 40;

[0045] The bottom of the housing 40 has an opening, and one end of the pull rope 102 fixed to the connecting platform 20 is pulled out from the opening;

[0046] The first connector 50 fixes the housing 40 on the lower surface of the weight 302 .

[0047] In actual scenarios, the accuracy of the wire displacement sensor may be reduced due to weather. In the embodiment of the present application, in order to protect the wire displacement sensor, the monitoring device may further include a housing 40. In the embodiment of the present application, the structure of the housing is as shown in FIG. Figure 7-10 In order to determine the displacement, a hole is formed at the bottom of the housing 40, wherein the hole can also be referred to as a wire-drawing hole. One end of the wire-drawing displacement sensor 10 connected to the connecting platform 20 is pulled out from the hole, and the main body 101 of the wire-drawing displacement sensor 10 is fixed in the housing 40, and the first connector 50 fixes the housing to the lower surface of the weight 302.

[0048] In a possible implementation, the first connector 50 may be a magnet, through which the housing 40 is adsorbed onto the lower surface of the weight 302 .

[0049] In order to achieve the connection between the housing and the weight, the first connector 50 includes a U-shaped groove 501 and a housing connector 502; the U-shaped groove 501 and the housing connector 502 are connected;

[0050] The first connector 50 is connected to the weight 302 based on the U-shaped groove 501 , and is connected to the shell 40 based on the shell connector 502 .

[0051] The first connector 50 fixes the housing 40 to the lower surface of the weight 302 in the following manner: the U-shaped groove 501 of the first connector 50 is connected to the weight 302, specifically to the lower surface of the weight 302, and the housing connector 502 of the first connector 50 is connected to the housing 40. In a possible implementation, the housing connector 50 can be connected to the housing 40 by welding.

[0052] In order to achieve the connection between the shell and the weight, the monitoring device further includes: a weight base 60, wherein the weight 302 has a slit; and a plurality of screw holes are provided on the upper surface of the shell 40;

[0053] The housing connector 502 includes an integrated bottom connector 5022 and a U-shaped groove connector 5021 perpendicular to the bottom connector; the U-shaped groove 501 is connected to the U-shaped groove connector 5021;

[0054] The bottom connecting member 5022 is provided with a plurality of screw holes, which correspond to the plurality of screw holes on the upper surface of the housing 40; the depth of the U-shaped groove 302 is the height of the weight base 60, and the distance between the side walls of the U-shaped groove 302 is not greater than the minimum width of the slit 3021;

[0055] The U-shaped groove 302 is inserted into the weight base 60 through the slit 3021 of the weight 302 ; bolts are connected to the shell connector 502 and the upper surface of the shell 40 through multiple screw holes of the bottom connecting member 5022 .

[0056] In the embodiment of the present application, the structure of the first connector refers to Figure 11-Figure 14 .

[0057] In the embodiment of the present application, the connection relationship between the U-shaped groove 501 and the weight 302 is as follows: Figure 2 The monitoring device also includes a weight base 60, wherein the weight base 60 is usually made of a material that can bear weight, is corrosion-resistant, and has a certain wear resistance, for example, it can be a metal such as steel or aluminum alloy, and the weight base 60 can be fixed to the lower surface of the weight 302 by welding or the like. Figure 2 It can be seen that the weight 302 has a slit 3021, the depth of the U-shaped groove 501 is the height of the weight base 60, and the distance between the side walls of the U-shaped groove 302 is not greater than the minimum width of the slit 3021 of the weight 302; the U-shaped groove 302 is inserted into the weight base 60 through the slit 3021 of the weight 302.

[0058] In the embodiment of the present application, the connection relationship between the housing connector 502 and the housing 40 is as follows: Figure 3 .

[0059] The shell connection 502 includes an integrally arranged bottom connecting member 5022 and a U-shaped groove connecting member 5021 perpendicular to the bottom connecting member; the bottom connecting member 5022 is provided with a plurality of screw holes, and the plurality of screw holes correspond to the plurality of screw holes on the upper surface of the shell 40. In a possible embodiment, four screw holes may be evenly arranged on the bottom connecting member 5022; bolts connect the shell connector 502 and the upper surface of the shell 40 through the plurality of screw holes of the bottom connecting member 5022.

[0060] In order to monitor accurately and effectively, based on the above embodiments, in the embodiment of the present application, the monitoring device further includes: a magnet 70 and an automatic telescopic take-up device 80; the automatic telescopic take-up device 80 includes a telescopic component 801 and a safety rope 802;

[0061] The other end of the pull rope 102 is connected to the top of the magnet 70 and is fixed to the upper surface of the connecting platform 20 through the bottom of the magnet 70;

[0062] The telescopic component 801 is fixed to the upper surface of the connecting platform 20 , one end of the safety rope 802 is connected to the telescopic component 801 , and the other end is connected to the top or side of the magnet 70 .

[0063] In the embodiment of the present application, the connection relationship on the connection platform 20 refers to Figure 4 .

[0064] Since the main body 101 of the pull-wire displacement sensor 10 may be locked, at this time, if one end of the pull rope 102 is connected to the magnet 70, and the magnet 70 is connected to the connecting platform 20, the pull rope 102 cannot be retracted normally, then the sinker 302 may not be able to move normally, causing a safe displacement of the train operation. In order to improve the safety of the train operation, the monitoring device may also include an automatic retractable wire take-up device 80, which is fixed on the upper surface of the connecting platform 20. One end of the safety rope 802 of the automatic retractable wire take-up device 80 is connected to the automatic retractable wire take-up device 80, and the other end is connected to the side of the magnet 70. Therefore, when the pull rope 102 cannot be retracted normally, the suction force of the magnet 70 is less than the pulling force of the pull-wire displacement sensor, and the magnet 70 is disconnected from the connecting platform 20. At this time, the automatic retractable wire take-up device 80 is retracted through the safety rope 802, so that the sinker can move normally.

[0065] The automatic retractable wire take-up device 80 is equivalent to a protection mechanism against "wire intrusion", thereby improving the safety of train operation.

[0066] In order to accurately monitor the displacement of the weight, on the basis of the above embodiments, in the embodiment of the present application, the monitoring device also includes: a processor 90; the processor 90 is fixed in the shell 40 and connected to the pull-wire displacement sensor 10; wherein the pull-wire displacement sensor 101 sends the detected displacement of the weight 302 to the processor 90, and the processor 90 determines whether the displacement of the weight is abnormal based on whether the deviation between the displacement and the standard displacement is greater than a threshold value.

[0067] In order to monitor whether the displacement of the weight is abnormal, the monitoring device also includes a processor 90, which can be a microcontroller unit (MCU). The processor 90 is fixed in the housing 40. In a possible implementation, the processor 90 can be fixed on a mainboard 110, which is fixed in the housing 40, and the processor 90 is connected to the wire displacement sensor 10. It should be noted that the connection between the processor 90 and the wire displacement sensor 10 can be wireless communication.

[0068] In a possible implementation, the wire displacement sensor 10 may send information about the determined displacement to the processor 90 at a preset time interval.

[0069] In order to determine whether there is an abnormal situation at present, the processor 90 can obtain the displacement of the weight 302 after receiving the displacement information sent by the wire displacement sensor 10. In order to accurately monitor, the processor 90 locally stores a standard distance in advance, which is the distance the weight moves when no abnormality occurs. It should be noted that the standard distance can be the displacement of the weight 302 determined based on multiple wire displacement sensors 10 with the same setting position as the wire displacement sensor 10 when no abnormality occurs.

[0070] After determining the displacement of the weight 302, the deviation of the displacement from the standard distance can be determined, and whether the deviation is greater than a threshold value can be determined. If the deviation is not greater than the threshold value, it can be determined that no abnormality has occurred at present. If the deviation is greater than the threshold value, it can be determined that the movement of the weight 302 is abnormal. At this time, there may be faults such as contact network pole collapse, wire breakage, network collapse, or other abnormalities, and an alarm message can be sent. The staff can make judgments based on the alarm information and make a conclusion of "train speed reduction" or "train stop operation" after judgment.

[0071] In a possible implementation, the processor 90 may send an alarm message to a server, and in order to facilitate the staff to determine where the abnormality occurs as quickly as possible, the location information of the weight 302 may be carried in the alarm message and sent to the server. The server may also be referred to as a segment center. Specifically, when sending the alarm message, the processor 90 may transmit the alarm message to the segment center via a cellular-based narrowband Internet of Things (NB-IoT) module.

[0072] In order to accurately monitor the displacement of the weight 302, on the basis of the above embodiments, in the embodiment of the present application, the monitoring device also includes: a temperature sensor 120; the temperature sensor 120 is fixed in the shell 40 and connected to the processor 90; wherein the processor 90 determines the standard displacement based on the ambient temperature detected by the temperature sensor 120.

[0073] At different temperatures, due to thermal expansion and contraction of the contact network, the position of the weight 302 may be different. In order to improve the safety of train operation and conduct accurate monitoring, a standard distance can be saved for different ambient temperatures, that is, a reasonable displacement can be saved.

[0074] In order to detect the ambient temperature, the monitoring device also includes a temperature sensor 120, which is fixed in the shell 40. In a possible implementation, the temperature sensor 120 can be fixed on the mainboard 110, the mainboard 110 is fixed in the shell 40, and the processor 90 is connected to the temperature sensor 120. It should be noted that the connection between the processor 90 and the temperature sensor 120 can be a wireless communication connection.

[0075] The temperature sensor 120 is used to detect the ambient temperature. Specifically, how the temperature sensor 120 detects the ambient temperature is a prior art and will not be described in detail here. The temperature sensor 120 sends the detected ambient temperature to the processor 90, and the processor 90 determines the standard distance saved corresponding to the ambient temperature.

[0076] In order to determine the standard distance, the temperature sensor 120 collects the reasonable displacement Y caused by seasonal changes within a year. After multiple temperature sensors 129 collect data, the staff finds the corresponding relationship between temperature T and distance Y, for example, Y=aT+Y0, a is the proportional coefficient, Y0 is the basic value, and the subsequent processor 90 can determine the standard distance based on the corresponding relationship between temperature and distance.

[0077] In order to improve the safety of train operation, on the basis of the above embodiments, in the embodiment of the present application, the monitoring device also includes: an acceleration sensor 130; the acceleration sensor 130 is fixed in the shell 40 and connected to the processor 90; the acceleration sensor 130 sends the detected train acceleration to the processor 90, and the processor 90 determines whether the weight displacement is abnormal based on whether the difference between the train acceleration and the preset acceleration is greater than a threshold.

[0078] In an embodiment of the present application, the monitoring device also includes an accelerometer 130, and the acceleration sensor 130 is fixed in the shell 40. In a possible implementation, the acceleration sensor 130 can be fixed on the mainboard 110, and the mainboard 110 is fixed in the shell 40, and the processor 90 is connected to the acceleration sensor 130, and the processor 90 is connected to the acceleration sensor 130. It should be noted that the connection between the processor 90 and the acceleration sensor 130 can be a wireless communication connection.

[0079] Among them, when a train passes, the vibration signal of the train passing will cause the acceleration detected by the acceleration sensor 130 to change. The acceleration detected when the train does not pass is a preset acceleration value. Therefore, in an embodiment of the present application, the acceleration sensor 130 can send the detected train acceleration to the processor 90. After receiving the train acceleration, the processor 90 may be affected by the environment when the train does not pass, so that the detected acceleration is not the preset acceleration. Therefore, the processor 90 can locally save a threshold value, which is greater than the acceleration deviation of the acceleration sensor caused by the environment. The processor 90 can determine the difference between the train acceleration and the preset acceleration value, and determine whether the difference is greater than the threshold. If the difference is greater than the threshold, it can be determined that the train has passed, and a signal is sent to the wire displacement sensor 10. After receiving the signal sent by the processor 90, the wire displacement sensor 10 executes the subsequent steps of determining the displacement information of the weight.

[0080] That is to say, in the embodiment of the present application, when the passage of a train is detected, the wire displacement sensor 10 is controlled to detect the displacement of the weight 302 .

[0081] In order to improve the safety of train operation, on the basis of the above embodiments, in the embodiment of the present application, the monitoring device also includes: a Hall sensor 140; the Hall sensor 140 is fixed in the shell 40 and connected to the processor 90; when the distance between the Hall sensor 140 and the magnet 7070 fixed on the connecting platform 20 is lower than the preset distance, the Hall effect is generated with the magnetic field of the magnet 7070, and a signal is sent to the processor 90; the processor 90 sends an alarm signal.

[0082] In actual scenarios, situations such as the collapse of electric poles may occur suddenly. At this time, if the situation is not known in time, the operation safety of the train may be affected. Since the weight 302 usually drops when abnormal situations such as the collapse of electric poles occur, in order to accurately determine whether an abnormal situation occurs, it can be determined whether a sudden abnormal situation occurs by whether the weight 302 drops. In the embodiment of the present application, it can be determined whether the weight 302 drops by the Hall sensor 140 and the magnet 70 disposed at a position close to the weight 302 during its descent.

[0083] Specifically, in order to determine whether the weight 302 falls, the monitoring device also includes a Hall sensor 140. It should be noted that when the weight 302 falls, it will approach the connection platform, that is, it will approach the magnet 70 fixed on the upper surface of the connection platform. And the Hall sensor 140 is fixed in the shell. Since the shell is adsorbed on the lower surface of the weight 302, when the weight 302 falls, the Hall sensor 140 will approach the magnet 70. When the distance between the Hall sensor 140 and the magnet 70 is lower than the preset distance, the Hall sensor 140 will produce a Hall effect with the magnetic field of the magnet 70. At this time, the Hall sensor 140 can send a signal to the processor 90. After receiving the signal sent by the Hall sensor 140, the processor 90 can determine that the weight 302 falls suddenly, and can preliminarily determine that there may be a sudden abnormal situation at present, and send an alarm message. Among them, when the weight 302 moves down to a certain position, such as 30cm, the Hall sensor 140 is triggered by the magnet 70 and immediately reports the displacement abnormal information.

[0084] In the embodiment of the present application, the wire displacement sensor 10 is used to measure the displacement of the contact network weight 302, the temperature sensor is used to obtain the safe distance range caused by thermal expansion and contraction due to changes in ambient temperature, the acceleration sensor is used to determine whether a train is passing, and the data detection of the wire displacement sensor 10 is started when the train passes. The Hall sensor 140 is used to detect abnormal bottoming of the weight 302 when no detection is performed, and the NB-IoT module is used for data transmission. When the displacement exceeds the safe distance range corresponding to the current temperature, the data is reported to the section center, and the power supply end arranges maintenance personnel to check and repair.

[0085] Fig.15 A schematic diagram of a mainboard provided in an embodiment of the present application.

[0086] It should be noted that the temperature sensor 120, acceleration sensor 130, Hall sensor 140, etc. described in the embodiment of the present application can be freely set according to actual needs. In the actual scenario, there is no restriction on which sensor is included.

[0087] In order to carry out monitoring accurately and effectively, on the basis of the above-mentioned embodiments, in the embodiment of the present application, the monitoring device also includes: a power supply unit 150; the power supply unit 150 is fixed in the shell 40, and is connected to the main body 101 of the wire displacement sensor 10 fixed in the shell 40, the processor 90, the Hall sensor 140, the temperature sensor 120, and the acceleration sensor 130.

[0088] Since it is impossible to directly connect to the circuit in the railway, in an embodiment of the present application, the monitoring device may include a power supply unit 150, which may be a disposable battery. The power supply unit 150 is fixed in the shell 40 and is used to power components such as the processor 90, the wire displacement sensor 10, and the Hall sensor 140.

[0089] In a possible implementation, the monitoring device may further include an indicator light, and the processor 90 may control the indicator light to present a preset color when determining that an abnormality currently exists.

[0090] In an embodiment of the present application, the processor 90 can also send the power level of the power supply unit to the server, so that the staff can detect the power level of the power supply unit and replace the power supply unit when the power is insufficient.

[0091] In a possible implementation, the temperature sensor 120 , the acceleration sensor 130 , the Hall sensor 140 , the NB-IoT module of the processor 90 , an indicator light, etc. may be integrated on the mainboard 110 .

[0092] Fig.16 A schematic diagram of the overall implementation of a monitoring device provided in an embodiment of the present application.

[0093] Depend on Fig.16 It can be seen that the monitoring equipment includes a data acquisition unit, a data processing unit, an indication unit, a data transmission unit, and a power supply and power management unit. Among them, the wire displacement sensor in the data transmission unit measures the displacement data of the weight, the temperature sensor records the temperature change, and is convenient for determining the reasonable displacement of the cold-shrink weight, the acceleration sensor is used to determine whether the train has passed, the Hall sensor is used to monitor the bottom contact of the weight, and the automatic retractable wire take-up device is used to protect the wire displacement sensor from locking. The data processing unit can be an MCU, the power supply and power management unit is a disposable battery, and the disposable battery can be 38000mAh. The indicator light of the indication unit is used to display the status in abnormal situations, and the NB-IoT module of the data transmission unit is used to realize data transmission.

[0094] In the embodiment of the present application, the processor 90 can encrypt the displacement data and other data obtained by the monitoring device using AES encryption and transmit them. The NB gateway of the server transparently transmits the data, and the server decrypts the data and restores it to plain text to save the data. According to the software definition of the business system, the display of displacement, ambient temperature, remaining power, reporting time, and recording of abnormal alarm events are completed, and user data analysis, abnormal weight fall warning and other functions are provided based on the data combined with the algorithm model of the railway power supply profession.

[0095] Based on the above embodiments, Fig.17A schematic diagram of a monitoring method provided in an embodiment of the present application, the method comprising the following steps:

[0096] S1701: Receive the information on the displacement of the weight sent by the wire displacement sensor.

[0097] S1702: Obtain the displacement of the weight, determine the deviation of the displacement from the standard distance, and determine whether the displacement of the weight is abnormal based on whether the deviation is greater than a threshold.

[0098] In a possible implementation, determining the standard distance includes:

[0099] Receive the ambient temperature sent by the temperature sensor; and obtain the standard distance saved corresponding to the ambient temperature.

[0100] In a possible implementation manner, before obtaining the displacement of the weight, the method further includes:

[0101] Receive the train acceleration sent by the acceleration sensor; if the difference between the train acceleration and the preset acceleration value is greater than a threshold, send a signal to the wire displacement sensor; wherein the wire displacement sensor, after receiving the signal sent by the processor, executes a subsequent step to obtain the displacement of the weight.

[0102] In a possible implementation, the method further includes:

[0103] After receiving the signal sent by the Hall sensor, an alarm message is sent.

[0104] Among them, the execution process of the monitoring method is the same as the execution process of the processor of the above-mentioned monitoring device, and will not be repeated here.

[0105] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A monitoring device for the operation of a railway overhead line compensation device, characterized in that: The monitoring equipment includes: a wire displacement sensor and a contact network compensation device, wherein the contact network compensation device includes a weight guide rod, a weight, and a pulley; The pull-wire displacement sensor includes a main body and a pull rope, wherein the main body is arranged on the lower surface of the weight; one end of the pull rope is connected to the main body, and the other end is fixed at a preset position.

2. The monitoring device according to claim 1, characterized in that The monitoring device also includes: a connection platform; The connecting platform is installed on the side wall of the weight guide rod, and the installation plane of the connecting platform is parallel to the ground; The other end of the pull rope is fixed on the upper surface of the connecting platform.

3. The monitoring device according to claim 2, characterized in that: The monitoring device further comprises: a housing and a first connector; The main body is fixed in the shell; The bottom of the shell has an opening, and one end of the pull rope is fixed to the connecting platform and pulled out from the opening; The first connector fixes the housing to the lower surface of the weight.

4. The monitoring device according to claim 3, characterized in that The first connector includes a U-shaped groove and a housing connector; the U-shaped groove and the housing connector are connected; The first connector fixes the shell to the lower surface of the weight, wherein the first connecting member is connected to the weight based on the U-shaped groove and is connected to the shell based on the shell connector.

5. The monitoring device according to claim 4, characterized in that The monitoring device further comprises: a weight base, wherein the weight has a slit; and a plurality of screw holes are provided on the upper surface of the housing; The shell connecting piece includes an integrated bottom connecting piece and a U-shaped groove connecting piece perpendicular to the bottom connecting piece; the U-shaped groove is connected to the U-shaped groove connecting piece; The bottom connecting piece is provided with a plurality of screw holes, which correspond to the plurality of screw holes on the upper surface of the shell; the depth of the U-shaped groove is the height of the bottom bracket of the weight, and the distance between the side walls of the U-shaped groove is not greater than the minimum width of the slit; The U-shaped groove is inserted into the bottom support of the weight through the slit of the weight; bolts are connected to the shell connecting piece and the upper surface of the shell through multiple screw holes of the bottom connecting piece.

6. The monitoring device according to claim 3, characterized in that: The monitoring device further comprises: a magnet and an automatic telescopic wire take-up device; the automatic telescopic wire take-up device comprises a telescopic component and a safety rope; The other end of the pull rope is connected to the top of the magnet and is fixed to the upper surface of the connection platform through the bottom of the magnet; The telescopic component is fixed on the upper surface of the connecting platform, one end of the safety rope is connected to the telescopic component, and the other end is connected to the top or side of the magnet.

7. The monitoring device according to claim 3, characterized in that: The monitoring device also includes: a processor; the processor is fixed in the shell and connected to the pull-wire displacement sensor; wherein the pull-wire displacement sensor sends the detected displacement of the weight to the processor, and the processor determines whether the displacement of the weight is abnormal based on whether the deviation between the displacement and the standard displacement is greater than a threshold.

8. The monitoring device according to claim 7, characterized in that The monitoring device further includes: a temperature sensor; the temperature sensor is fixed in the housing and connected to the processor; wherein the processor determines the standard displacement based on the ambient temperature detected by the temperature sensor.

9. The monitoring device according to claim 7, characterized in that: The monitoring device also includes: an acceleration sensor; the acceleration sensor is fixed in the shell and connected to the processor; the acceleration sensor sends the detected train acceleration to the processor, and the processor determines whether the weight displacement is abnormal based on whether the difference between the train acceleration and the preset acceleration is greater than a threshold.

10. The monitoring device according to claim 7, characterized in that The monitoring device also includes: a Hall sensor; the Hall sensor is fixed in the shell and connected to the processor; when the distance between the Hall sensor and a magnet fixed on the connecting platform is lower than a preset distance, a Hall effect is generated with the magnetic field of the magnet and a signal is sent to the processor; the processor sends an alarm signal.

Images