Portable railway brake detection equipment

Abstract

The utility model belongs to the field of railway locomotive application and maintenance, and provides a portable railway brake detection device, which comprises a main body frame used for holding to detect a railway brake air pipeline; the operating mechanism is fixedly arranged on the main body frame and is used for detecting the operation of the railway brake air pipeline; the main body mechanism is fixedly arranged on the main body frame and is used for processing railway brake air pipeline detection data; the detection mechanism is arranged on the main body frame and is used for contact detection of the railway brake air pipeline; the device can process key features in sound signals, effectively recognize and classify complex sound modes, more accurately recognize specific ultrasonic signals generated by brake pipe leakage and improve the detection accuracy, the signal acquisition silicon microphone can quickly and accurately position leakage points of the brake pipe, and the detection accuracy is improved. Potential safety hazards are found in time, train safety accidents caused by brake pipe leakage are avoided, and the safety of railway transportation is improved.

Description

Technical Field

[0001] This utility model belongs to the field of railway locomotive operation and maintenance, specifically a portable railway brake testing device. Background Technology

[0002] Railway brake air ducts, often simply referred to as brake pipes, are air ducts that run through the entire train. Their main function is to control the brakes of each vehicle by transmitting changes in the pressure of compressed air, thereby producing corresponding braking or releasing effects. In short, brake pipes are an important medium for transmitting braking signals and power in the railway vehicle braking system.

[0003] When inspecting railway brake air pipelines, acoustic leak detectors are typically used. However, existing acoustic leak detectors have relatively poor sensitivity and weak anti-interference capabilities, making them susceptible to ambient noise and resulting in inaccurate test results. Furthermore, railway brake air pipelines are usually complex in structure, with numerous bends and branches, and may contain various accessories and valves. These complex structures can interfere with the propagation of sound waves, making it difficult for acoustic leak detectors to accurately detect the leak location. In addition, different types of leaks (such as micro-leaks and intermittent leaks) may produce similar acoustic signal characteristics, making it difficult to accurately distinguish the specific type of leak during detection.

[0004] To address the problems raised in the background art, those skilled in the art have proposed a portable railway braking detection device. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a portable railway brake testing device to solve the problem of inaccurate testing of railway brake air lines in the prior art.

[0006] A portable railway brake testing device includes: a main frame for holding and testing railway brake air pipes; an operating mechanism fixedly mounted on the main frame for operating and testing the railway brake air pipes; a main body mechanism fixedly mounted on the main frame for processing railway brake air pipe testing data; and a testing mechanism mounted on the main frame for contact testing of the railway brake air pipes.

[0007] Preferably, the operating mechanism includes a display screen fixedly mounted on the main frame, and function buttons are fixedly mounted on the main frame at the side of the display screen.

[0008] Preferably, the main body structure includes a connecting frame fixedly mounted on the top of the main frame, and the connecting frame is located on the back of the display screen; a speaker is fixedly mounted on the connecting frame.

[0009] Preferably, the detection mechanism comprises a connecting line fixedly arranged on the connecting frame, and the connecting frame is fixedly provided with a signal collection silicon microphone through the connecting line.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1、The utility model discloses a sound signal processing module is arranged in the connecting frame, and the core microcontroller is arranged in the main part frame, so that the connecting frame and the main part frame can apply the deep learning sound source identification algorithm to automatically extract the key feature in the sound signal after pre -processing, realize the effective identification and classification of complex sound mode, can more accurately identify the specific ultrasonic signal generated by the brake pipe leakage, improve the accuracy of detection, and the signal collection silicon microphone can quickly and accurately locate the leakage point of the brake pipe, timely find potential safety hazards, avoid the train safety accident caused by the brake pipe leakage, improve the safety of railway transportation.

[0012] 2、The utility model discloses a main part frame and connecting frame have the characteristics of small and convenient, and the staff can be hand -held operation, can carry out the detection of brake pipe at any time and anywhere in the railway field, and can switch different functions through the function button, and the bottom hole access earphone can connect the staff, and timely report any abnormal situation to the user, and the staff can switch mode and check carefully to abnormal situation, provide good man -machine interaction experience, and can carry out the voice broadcast processing in time through the loudspeaker, and the staff is facilitated to remind abnormal attention, and second, the display screen can directly show the detection result, and the staff is convenient to check. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structural drawing of the railway brake detection equipment of the utility model;

[0014] Figure 2 It is the detection equipment structure display drawing of the utility model;

[0015] Figure 3 It is the detection equipment signal processing flow chart of the utility model.

[0016] In the drawing:

[0017] 1, display screen;2, function button;3, main part frame;4, signal collection silicon microphone;5, connecting line;6, connecting frame;7, loudspeaker. DETAILED DESCRIPTION

[0018] The embodiment of the utility model is further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0019] Example one:

[0020] As shown in the accompanying Figure 1 to the accompanying Figure 3 :

[0021] The utility model provides a portable railway brake detection equipment, include: main frame 3 for holding to railway brake air pipeline detection, operating mechanism, fixedly set up on main frame 3, is used for railway brake air pipeline operation detection, main mechanism, fixedly set up on main frame 3, is used for railway brake air pipeline detection data processing, detection mechanism, set up on main frame 3, is used for railway brake air pipeline contact detection.

[0022] Reference Figure 1 and Figure 3 , operating mechanism includes main frame 3, display screen 1 and function button 2;

[0023] Through being provided with main frame 3, and being provided with core microcontroller in main frame 3, { core microcontroller includes but is not limited to STM32F407 as microcontroller etc.}, the core microcontroller in main frame 3 uses the deep learning sound source recognition algorithm, carries out feature extraction to the signal after processing, utilizes principal component analysis PCA to the original characteristic parameter and carries out standardization processing, calculates covariance matrix and correlation coefficient, obtains the interrelation between characteristic parameters, through these relations, calculate new characteristic parameters, and determine and synthesize principal component, further explore the influence of characteristic parameters and overall distribution difference through single factor variance analysis and H inspection method, utilize deep convolution algorithm in the data enhancement of pre-processing stage, improve the generalization ability and robustness of model, after feature extraction, fusion multiple characteristic parameters, capture the characteristic information of audio signal comprehensively, to this end reach the purpose of signal collection analysis processing;

[0024] Meanwhile, display screen 1 is fixedly connected on main frame 3, and function button 2 is fixedly connected on the side of display screen 1, so that the core microcontroller in main frame 3 handles the result and directly shows the staff through display screen 1, the state of brake pipe, whether there is leakage, the position of leakage and other information will be displayed on display screen 1, and the staff can directly operate and select through function button 2, directly check the detection result through display screen 1 to avoid misjudgment, and the staff can select different detection modes through function button 2.

[0025] Embodiment two:

[0026] Reference Figure 2 and Figure 3 , main mechanism connecting frame 6 and loudspeaker 7;

[0027] The signal processing module in the connecting frame 6 can filter, amplify, and analog-digital convert the collected signals, improve the quality and analyzability of the signals, effectively filter out interference signals through the improved amplitude limiting filtering method, ensure that only useful signal components are retained, then amplify the signals again to ensure that the amplitude of the signals is within the range of subsequent processing, and convert the analog signals into digital signals through analog-digital conversion, and finally normalize the collected sound data so that the sound amplitudes collected under different conditions are within the same range, facilitating subsequent sound feature extraction and recognition.

[0028] Meanwhile, the loudspeaker 7 is fixedly connected to the connecting frame 6, so that when the display screen 1 displays the railway brake air pipe detection information, the connecting frame 6 can voice broadcast the detection structure to the staff. If a leak is detected, the device will emit an alarm sound or voice prompt to remind the staff to pay attention. In addition, the staff can also timely inform the user of any abnormal situation by wearing a headset or the like.

[0029] Referring to Figure 1 , Figure 2 and Figure 3 , the detection mechanism includes a signal collection microphone 4 and a connecting line 5.

[0030] The signal collection microphone 4 is connected to the connecting frame 6 through the connecting line 5, and a sound signal collection device is arranged in the signal collection microphone 4. During use of the connecting frame 6 and the main body frame 3, the top of the signal collection microphone 4 needs to be aligned with the detection part of the brake pipe first. When the brake pipe leaks, ultrasonic information will be generated at the leakage site. The signal collection microphone 4 will receive these signals and convert them into electrical signals. The collected signals will be transmitted in real time to the connecting frame 6 and the main body frame 3 through the connecting line 5 for processing.

[0031] Meanwhile, a storage part is arranged in the main body frame 3. The storage part can store a large amount of detection data, providing rich data resources for subsequent data analysis and research, and can analyze the detection data in cooperation with the core microcontroller in the main body frame 3 to find the failure rules and trends of the brake pipe, perform failure prediction and prevention, and improve the reliability and safety of railway transportation.

[0032] Working principle: when the railway brake air pipe detection equipment is used, first open the power supply of the equipment, the main body frame 3 and the connecting frame 6 will be self-checked to ensure that all functions are normal, the self-checking content includes hardware module microcontroller, sensor, display screen 1 and software module operating system, detection algorithm, etc., after the self-checking is completed, the equipment enters standby state, prepares to detect, and the equipment will initialize each module during self-checking to ensure that the equipment is in good working condition, then the worker holds the main body frame 3 and the connecting frame 6, and the top of the signal collection silicon microphone 4 is aligned with the detection part of the brake pipe, when the brake pipe leaks, the leakage will generate ultrasonic signals, the signal collection silicon microphone 4 will receive these signals and convert them into electrical signals, and the collected signals will be transmitted to the connecting frame 6 and the main body frame 3 for processing in real time, and the processing result is directly displayed to the worker through the display screen 1, the display screen 1 will display the state of the brake pipe, whether there is leakage, the position of the leakage and other information, and the detection result will also be announced to the worker through the loudspeaker 7.

[0033] The embodiments of the utility model are given for example and description, although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled person in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

[0034] Finally, the following points should be noted: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0035] Secondly: the utility model discloses the embodiment of the drawings, only relates to the structure involved in the embodiment of the utility model, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0036] Finally: the above-mentioned is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model;

[0037] The above are the preferred embodiments of the present application, and are not used to limit the protection scope of the present application, therefore: any equivalent change made according to the structure, shape, principle of the present application should be included in the protection scope of the present application.

Claims

1. A portable railway brake detection apparatus characterized by comprising: The utility model relates to a kind of railway brake air pipe detection device, including: Main frame (3) is used to hold to railway brake air pipe detection; Operating mechanism is fixedly arranged on main frame (3), for railway brake air pipe operating detection; Main mechanism is fixedly arranged on main frame (3), for railway brake air pipe detection data processing; Detection mechanism is arranged on main frame (3), for railway brake air pipe contact detection.

2. The portable railway brake testing apparatus of claim 1, wherein: The operating mechanism includes a display screen (1) fixedly arranged on the main frame (3), and a function button (2) is fixedly arranged on the main frame (3) at the side of the display screen (1).

3. The portable railway brake testing apparatus of claim 2, wherein: The main mechanism includes a connecting frame (6) fixedly arranged on the top of the main frame (3), and the connecting frame (6) is located at the back of the display screen (1). The connecting frame (6) is fixedly provided with a loudspeaker (7).

4. The portable railroad brake testing apparatus of claim 1, wherein: The detection mechanism includes a connecting line (5) fixedly arranged on the connecting frame (6), and the connecting frame (6) is fixedly provided with a signal acquisition silicon microphone (4) through the connecting line (5).

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