Railway external locking turnout locking amount detection method, system, equipment and medium

Abstract

The invention relates to a method, a system, equipment and a medium for detecting the locking quantity of an external locking turnout of a railway, and belongs to the technical field of track safety detection. The method for detecting the locking quantity of the external locking turnout of the railway comprises the following steps: detecting the locking quantity of the external locking turnout through a magnetic grid and a magnetic field inductive sensor; when relative movement occurs between the magnetic railing ruler and the magnetic field inductive sensor, the magnetic field inductive sensor can collect the number of passing magnetic railings, the collected number of the magnetic railings is analyzed and processed, then the movement direction and stroke are obtained in real time, and by monitoring the locking amount of the external locking turnout, the locking accuracy of the external locking turnout is improved. Therefore, real-time monitoring of the locking amount of the two sides of each traction point of the turnout switch rail is realized. And powerful data support is provided for field maintenance personnel. The method adapts to the outdoor turnout environment, the long-term stability is good, the reliability is high, and the measurement precision can reach + / -0.1 mm.

Description

Technical Field

[0001] The present invention belongs to the technical field of track safety detection, and in particular, relates to a method, system, equipment and medium for detecting the locking amount of a railway external locking turnout. Background Art

[0002] Turnouts are line equipment used when locomotives and vehicles transfer from one track to another. They are essential track equipment for trains to change tracks or cross-track operations. External locking devices are mechanical devices used for railway turnout conversion. They are also important equipment for ensuring high-speed and heavy-load safety. The external locking device directly locks the point rail and base rail, heart rail and wing rail of the turnout through the conversion of the switch machine, and completes the unlocking, conversion and locking of the turnout through the conversion of the switch machine. The installation of the turnout adopts a multi-machine multi-point traction method, and each traction point is equipped with a split external locking device.

[0003] The locking amount refers to the travel of the locking device from the beginning of locking to the end of locking, that is, the distance between the locking hook of the locking device in the close position and the boss of the locking rod. The locking amount requirements of the external locking device stipulate that the locking amount of the first traction point of the point rail and the heart rail should not be less than 25 mm, and the other traction points should not be less than 20 mm. The locking amount of the external locking turnout is an important parameter for the reliable locking of the turnout, such as Figure 3 shown.

[0004] The virtual opening of the turnout rail refers to the situation that when the turnout rail is in the repulsion position, due to various factors, the turnout opening at each traction point is greater than the standard opening. Specifically, it is manifested as: the gap between the repulsion rail lock hook groove and the locking rod boss action surface, such as Figure 2 As shown, the repulsion point rail is free and the turnout opening is not true. The false opening of the turnout point rail is very likely to cause turnout switching failure, which will affect the normal operation of the line in serious cases and needs to be effectively monitored and detected.

[0005] The prior art mostly uses detection devices and instruments to manually detect the locking amount of externally locked turnouts, and the prior art has not yet found an online detection method for simultaneously collecting the turnout locking amount and determining the turnout false opening fault and false opening value.

[0006] Therefore, it is necessary to provide a new method, system, equipment and medium for detecting the locking amount of railway external locking turnout to solve the above technical problems. Summary of the invention

[0007] The purpose of the present disclosure is to provide a method, system, device and medium for detecting the locking amount of a railway external locking turnout in order to solve the above-mentioned problem.

[0008] The present invention achieves the above-mentioned purpose through the following technical solutions: A method for detecting the locking amount of a railway external locking turnout comprises the following steps: A magnetic scale is arranged on the outer locking action rod and the locking boss, and a magnetic field sensing sensor is arranged on the outer locking hook boss, so that the magnetic field sensing sensor and the magnetic scale can effectively sense within the travel range of the outer locking action rod; During the switch switching process, relative movement occurs between the magnetic scale and the magnetic field induction sensor, and the magnetic field induction sensor collects the number of magnetic scales passing through and performs analysis and processing to obtain information on the direction and distance of movement; The movement direction and movement distance information are processed to obtain waveform curves of movement distance, movement direction and time, so as to realize real-time detection of the locking amount on both sides of each traction point of the turnout point rail.

[0009] As a further optimization solution of the present disclosure, a magnetic scale is arranged on the outer locking action rod and the locking boss, and a magnetic field induction sensor is arranged on the outer locking hook boss, including: Mounting grooves are provided on the outer locking action rod and the locking boss; According to the stroke of the external locking action rod, a magnetic scale of corresponding size is cut out, and the magnetic scale is installed in the installation groove; A groove is provided on the bottom side of the outer locking hook boss; The magnetic field induction sensor is installed in the groove so that the sensing surface of the magnetic field induction sensor is kept parallel to the surface of the magnetic scale, and the distance is controlled within a preset effective sensing range.

[0010] As a further optimization solution of the present disclosure, the preset effective sensing range is 0.5mm-1.5mm.

[0011] As a further optimization scheme of the present disclosure, the magnetic scale is fixed in the installation groove by double-sided tape, and then the magnetic scale is sealed in the installation groove by epoxy glue. After the epoxy glue is completely solidified, the surface of the epoxy glue is polished smooth so that the treated epoxy glue surface is flush with the surface of the external locking action rod.

[0012] As a further optimization solution of the present disclosure, the magnetic field sensing sensor is connected to an acquisition processing unit, and the acquisition processing unit is used to power the magnetic field sensing sensor and transmit the signal output by the magnetic field sensing sensor.

[0013] As a further optimization scheme of the present disclosure, the acquisition and processing unit is equipped with a built-in 5G wireless transmission module, which is used to transmit the movement direction and movement distance information output by the magnetic field sensing sensor to the server side, and the server side transmits the information to the computer for storage and processing, and forms a waveform curve of the movement distance, movement direction and time formed by the relative positions of the locking hook and the locking rod during the entire process of turnout conversion in the computer.

[0014] A method for detecting the locking amount of a railway external locking turnout, further comprising: The threshold is set according to the standard. When the action distance is greater than the threshold, the action direction is clarified and the alarm function is performed to indicate abnormal locking amount or false opening of the switch, prompting on-site personnel to maintain the switch in time.

[0015] A railway external locking turnout locking amount detection system, comprising: An installation module is used to set a magnetic scale on the outer locking action rod and the locking boss, and set a magnetic field sensing sensor on the outer locking hook boss, so that the magnetic field sensing sensor and the magnetic scale can effectively sense within the travel range of the outer locking action rod; A magnetic grid processing module is used to generate relative movement between the magnetic grid scale and the magnetic field sensing sensor during the turnout switching process, collect the number of magnetic grids passed by the magnetic field sensing sensor and perform analysis and processing to obtain movement direction and movement distance information; The locking amount real-time detection module is used to process the movement direction and movement distance information to obtain a waveform curve of the movement distance, movement direction and time, so as to realize the real-time detection of the locking amount on both sides of each traction point of the turnout point rail.

[0016] An electronic device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; Memory, for storing computer programs; The processor is used to execute the program stored in the memory to implement the locking amount detection method of the railway external locking turnout.

[0017] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements a method for detecting the locking amount of a railway external locking turnout.

[0018] The beneficial effects of the present disclosure are: The present invention detects the locking amount of the external locking turnout based on the magnetic grid and the magnetic field induction sensor; when relative movement occurs between the magnetic grid scale and the magnetic field induction sensor, the magnetic field induction sensor will collect the number of magnetic grids passing by, and analyze and process the collected number of magnetic grids to obtain the movement direction and stroke in real time. By monitoring the locking amount of the external locking turnout, it can realize the real-time monitoring of the locking amount on both sides of each traction point of the turnout point rail, providing strong data support for on-site maintenance personnel. The method disclosed in the present invention is suitable for outdoor turnout environments, has good long-term stability, high reliability, and high measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a method flow chart in an embodiment of the present disclosure; Figure 2 It is a schematic diagram of a false opening condition in the external locking device; Figure 3 is a schematic diagram of the locking amount of the external locking device; Figure 4 is a schematic diagram of the installation positions of the magnetic scale and the magnetic field sensing sensor in the embodiment of the present disclosure; Figure 5 is a schematic diagram of signal transmission of each unit in an embodiment of the present disclosure; Figure 6 is a system structure block diagram in an embodiment of the present disclosure; Figure 7 It is a block diagram of the device structure in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] like Figure 1 As shown, a method for detecting the locking amount of a railway external locking turnout comprises the following steps: A magnetic scale is arranged on the outer locking action rod and the locking boss, and a magnetic field sensing sensor is arranged on the outer locking hook boss, so that the magnetic field sensing sensor and the magnetic scale can effectively sense within the travel range of the outer locking action rod; During the switch switching process, the magnetic scale and the magnetic field induction sensor move relative to each other, and the magnetic field induction sensor collects the number of magnetic scales passing through and performs analysis and processing to obtain the movement direction and movement distance information; The movement direction and movement distance information are processed to obtain waveform curves of movement distance, movement direction and time, so as to realize real-time detection of the locking amount on both sides of each traction point of the turnout point rail.

[0022] In this embodiment, it specifically includes: A magnetic scale is arranged on the outer locking action rod and the locking boss, and a magnetic field induction sensor is arranged on the outer locking hook boss, including: A groove is made on the upper surface of the external locking action rod, and a magnetic scale of appropriate size is cut according to the stroke of the action rod. Then it is fixed on the action rod with double-sided tape, and then the magnetic scale is potted in the groove of the action rod with epoxy glue. After the epoxy glue is completely solidified, the potted epoxy glue surface is polished and smoothed with a grinder to ensure that the processed epoxy glue surface is flush and smooth with the action rod surface, and the mechanical strength meets the use requirements to ensure that it does not affect normal use; The outer locking hook boss is grooved and the magnetic field induction sensor is installed in the groove to ensure that it is installed squarely and securely. The sensing surface of the magnetic field induction sensor must be parallel to the surface of the magnetic scale, and the distance is controlled at 0.5-1.5mm. The installation position of the magnetic field induction sensor and the inlay range of the magnetic scale can ensure that the two can effectively sense each other within the travel range of the action rod.

[0023] like Figure 4 As shown, the magnetic scale is installed on the outer locking action rod and the locking boss for positioning the outer locking action rod. The magnetic field induction sensor is installed in the outer locking hook boss. The magnetic scale records the magnetic signal with equal pitch periodic changes on the magnetic scale as a reference scale. The length of every two complete magnetic grids on the magnetic scale is λ.

[0024] There are two magnetic pickup heads inside the magnetic field induction sensor for collecting magnetic field signals and converting magnetic signals into electrical signals. In this embodiment, the spacing between the two magnetic pickup heads is 1 / 4λ.

[0025] When monitoring the locking amount on the close-fitting side of the turnout, the displacement of the magnetic head relative to the magnetic scale can be detected by identifying the phase difference of the signals received by the two magnetic pickup heads. Because the two times differ in space by 1 / 4λ, the moving direction of the magnetic head relative to the magnetic scale can be obtained through the lead-lag relationship of the signals received by the two magnetic pickup heads. When locking on the close-fitting side, the overlapping distance between the lock hook and the locking rod boss is detected, that is, the locking amount of the turnout. The locking amount is the real-time monitoring displacement value. When monitoring the repulsive side of the turnout, the positional relationship between the lock hook and the locking rod plane is detected, that is, the virtual opening value, which is the monitoring difference.

[0026] The judgment standard of false opening value is: when the turnout switches normally and there is no false opening fault on the rejection side, that is, the displacement value of the detection hook and the locking rod plane is set as the reference value. If the monitored displacement value is significantly different from the reference value, it is judged as a false opening fault of the turnout, and the false opening value = detection value - reference value.

[0027] The signal output by the magnetic field induction sensor includes the movement distance information and the movement direction information of the action rod, and the signal output by the magnetic field induction sensor is an analog electrical signal.

[0028] like Figure 5As shown, the magnetic field induction sensor is connected to the acquisition processing unit, which is arranged on the top side of the outer locking hook. The outer locking hook is provided with a wire groove, which is connected to the groove, and a cable is arranged in the wire groove. The acquisition processing unit is connected to the magnetic field induction sensor through the cable, and is responsible for supplying power to the magnetic field induction sensor and transmitting the analog electrical signal of the magnetic field induction sensor to the server. The acquisition processing unit has a 5G wireless transmission function, which transmits the analog electrical signal of the magnetic field induction sensor to the server through 5G, and stores and processes the data again through the computer in the operation room. The computer forms a full-time monitoring of the relative position of the lock hook and the outer locking action rod during the whole process of the turnout conversion. After processing the collected signal, a waveform curve of the action distance, action direction and time can be formed, and a certain threshold can be set according to the standard. If the collected displacement is greater than the set threshold, an alarm function can be realized, that is, "abnormal locking amount" or "fake turnout opening" fault. Prompt on-site personnel to maintain the turnout in time.

[0029] The present invention uses magnetic grids and magnetic field induction sensors to detect the virtual opening of external locked turnouts, thereby determining whether the secondary turnout has a virtual opening fault and quantifying the virtual opening value. Based on real-time monitoring information, it can be determined whether the turnout has a "false opening of the turnout" or "abnormal locking amount" fault, and timely prompt maintenance personnel, and then determine whether the turnout needs maintenance, providing on-site operators with timely and effective operation basis.

[0030] The present invention can form a waveform curve of the action time and action distance of each traction point by effectively monitoring the travel of the externally locked turnout hook and the locking rod during the turnout switching process, so as to judge the action consistency of each traction point of the turnout (that is, whether the turnout is synchronized), and provide effective data support for turnout maintenance.

[0031] like Figure 6 As shown, an embodiment of the present disclosure provides a railway external locking turnout locking amount detection system, comprising: The mounting module 11 is used to set a magnetic scale on the outer locking action rod and the locking boss, and set a magnetic field sensing sensor on the outer locking hook boss, so that the magnetic field sensing sensor and the magnetic scale can effectively sense within the travel range of the outer locking action rod; The magnetic grid processing module 12 is used for collecting the number of magnetic grids passed by the magnetic field sensing sensor and analyzing and processing them to obtain the movement direction and movement distance information during the turnout switching process. The locking amount real-time detection module 13 is used to process the movement direction and movement distance information to obtain a waveform curve of the movement distance, movement direction and time, so as to realize the real-time detection of the locking amount on both sides of each traction point of the turnout point rail.

[0032] The implementation process of the functions and effects of each module in the above system is specifically described in the implementation process of the corresponding steps in the above method, which will not be repeated here.

[0033] For the system embodiment, since it basically corresponds to the method embodiment, the relevant parts can refer to the partial description of the method embodiment. The system embodiment described above is only schematic, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the disclosed solution. A person of ordinary skill in the art can understand and implement it without paying any creative work.

[0034] In the above embodiments, any number of all modules can be combined into one module for implementation, or any one of the modules can be split into multiple modules. Alternatively, at least part of the functions of one or more of these modules can be combined with at least part of the functions of other modules and implemented in one module. At least one of all modules can be at least partially implemented as a hardware circuit, such as a field programmable gate array (FPGA), a programmable logic array (PLA), a system on a chip, a system on a substrate, a system on a package, an application specific integrated circuit (ASIC), or can be implemented by hardware or firmware such as any other reasonable way of integrating or packaging the circuit, or implemented in any one of the three implementation methods of software, hardware and firmware or in a suitable combination of any of them. Alternatively, at least one of all modules can be at least partially implemented as a computer program module, and when the computer program module is run, the corresponding function can be executed.

[0035] See also Figure 7 , an electronic device provided by an embodiment of the present disclosure includes a processor 1110, a communication interface 1120, a memory 1130 and a communication bus 1140, wherein the processor 1110, the communication interface 1120, and the memory 1130 communicate with each other through the communication bus 1140; Memory 1130, for storing computer programs; The processor 1110 is used to implement the following method for detecting the locking amount of the externally locked railway turnout when executing the program stored in the memory 1130.

[0036] The communication bus 1140 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus 1140 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0037] The communication interface 1120 is used for communication between the above electronic device and other devices.

[0038] The memory 1130 may include a random access memory (RAM) or a non-volatile memory, such as at least one disk memory. Optionally, the memory 1130 may also be at least one storage device located away from the processor 1110.

[0039] The above-mentioned processor 1110 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0040] The embodiment of the present disclosure further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the locking amount detection method of the railway external locking turnout is implemented.

[0041] The computer-readable storage medium may be included in the device / apparatus described in the above embodiment; or it may exist independently without being assembled into the device / apparatus. The above computer-readable storage medium carries one or more programs. When the above one or more programs are executed, the method for detecting the locking amount of the railway external locking turnout according to the embodiment of the present disclosure is implemented.

[0042] According to an embodiment of the present disclosure, a computer-readable storage medium may be a non-volatile computer-readable storage medium, for example, may include but is not limited to: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, apparatus, or device.

[0043] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present disclosure. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure.

Claims

1. A method for detecting the locking amount of a railway external locking turnout, characterized in that: The following steps are involved: A magnetic scale is arranged on the outer locking action rod and the locking boss, and a magnetic field sensing sensor is arranged on the outer locking hook boss, so that the magnetic field sensing sensor and the magnetic scale can effectively sense within the travel range of the outer locking action rod; During the switch switching process, relative movement occurs between the magnetic scale and the magnetic field induction sensor, and the magnetic field induction sensor collects the number of magnetic scales passing through and performs analysis and processing to obtain information on the direction and distance of movement; The movement direction and movement distance information are processed to obtain waveform curves of movement distance, movement direction and time, so as to realize real-time detection of the locking amount on both sides of each traction point of the turnout point rail.

2. A method for detecting the locking amount of a railway external locking turnout according to claim 1, characterized in that: A magnetic scale is arranged on the outer locking action rod and the locking boss, and a magnetic field induction sensor is arranged on the outer locking hook boss, including: Mounting grooves are provided on the outer locking action rod and the locking boss; According to the stroke of the external locking action rod, a magnetic scale of corresponding size is cut out, and the magnetic scale is installed in the installation groove; A groove is provided on the bottom side of the outer locking hook boss; The magnetic field induction sensor is installed in the groove so that the sensing surface of the magnetic field induction sensor is kept parallel to the surface of the magnetic scale, and the distance is controlled within a preset effective sensing range.

3. A method for detecting the locking amount of a railway external locking turnout according to claim 2, characterized in that: The preset effective sensing range is 0.5mm-1.5mm.

4. A method for detecting the locking amount of a railway external locking turnout according to claim 2, characterized in that: The magnetic scale is fixed in the installation groove by double-sided tape, and then the magnetic scale is sealed in the installation groove by epoxy glue. After the epoxy glue is completely solidified, the surface of the epoxy glue is polished smooth so that the processed epoxy glue surface is flush with the surface of the external locking action rod.

5. A method for detecting the locking amount of a railway external locking turnout according to claim 2, characterized in that: The magnetic field induction sensor is connected to a collection and processing unit, and the collection and processing unit is used to supply power to the magnetic field induction sensor and transmit the signal output by the magnetic field induction sensor.

6. A method for detecting the locking amount of a railway external locking turnout according to claim 5, characterized in that: The acquisition and processing unit is equipped with a 5G wireless transmission module, which is used to transmit the movement direction and movement distance information output by the magnetic field sensing sensor to the server side. The server side transmits the information to the computer for storage and processing, and forms a waveform curve of the movement distance, movement direction and time formed by the relative position of the locking hook and the locking rod during the whole process of turnout conversion in the computer.

7. A method for detecting the locking amount of a railway external locking turnout according to claim 5, characterized in that: Also includes: The threshold is set according to the standard. When the action distance is greater than the threshold, the action direction is clarified and the alarm function is performed to indicate abnormal locking amount or false opening of the switch, prompting on-site personnel to maintain the switch in time.

8. A railway external locking turnout locking amount detection system, characterized in that: include: An installation module is used to set a magnetic scale on the outer locking action rod and the locking boss, and set a magnetic field sensing sensor on the outer locking hook boss, so that the magnetic field sensing sensor and the magnetic scale can effectively sense within the travel range of the outer locking action rod; A magnetic grid processing module is used to generate relative movement between the magnetic grid scale and the magnetic field sensing sensor during the turnout switching process, collect the number of magnetic grids passed by the magnetic field sensing sensor and perform analysis and processing to obtain movement direction and movement distance information; The locking amount real-time detection module is used to process the movement direction and movement distance information to obtain a waveform curve of the movement distance, movement direction and time, so as to realize the real-time detection of the locking amount on both sides of each traction point of the turnout point rail.

9. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; Memory, for storing computer programs; The processor is used to execute the program stored in the memory to implement the locking amount detection method of the railway external locking turnout according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for detecting the locking amount of a railway external locking turnout according to any one of claims 1 to 7 is implemented.

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