Portable vehicle-mounted equipment vehicle bottom detection tool

Abstract

The utility model discloses a portable vehicle-mounted equipment underbody detection tool, which is used for solving the problem of lack of special detection tools for locomotive underbody equipment in the prior art. The tool comprises a man-machine interaction equipment unit and a detection equipment unit, and is characterized in that the detection equipment unit comprises a detection ruler, a radio frequency antenna, a signal detection module, an attitude measurement module, an image acquisition module, a power management module, a wireless communication module and a core processor; the three image acquisition modules are located at the two ends and the middle of the detection ruler respectively, and the six attitude measurement modules are arranged at the two ends and the middle of the detection ruler in pairs. The application of the portable vehicle bottom detection tool for the vehicle-mounted equipment can effectively improve the maintenance operation efficiency of the vehicle bottom equipment, and solves the problems that in the maintenance process of the vehicle-mounted vehicle bottom equipment of a current motor train unit, multiple persons are needed for cooperative operation, and no effective detection tool exists.

Description

Technical Field

[0001] The present technology relates to a detection device, and particularly to a detection state of train control vehicle bottom equipment, belonging to the technical field of track circuit detection. Background Art

[0002] The train control vehicle bottom equipment (hereinafter referred to as vehicle bottom equipment) mainly includes equipment modules such as BTM antennas, STM antennas, and radars installed on the bottom of the EMU, which are key components of the train control vehicle equipment and important train operation safety equipment. Regularly carrying out the detection work of the vehicle bottom equipment, the detection process usually requires one or two people to complete. The main inspection method is to visually observe whether there are damages or deformations on the appearance of the equipment through the naked eye, and measure the installation height with a ruler to judge whether there are inclinations or twists, and then record the observation and measurement results in a paper file and keep it on file. Generally speaking, at present, the detection of vehicle bottom equipment lacks convenient and practical detection tools, and there is also a lack of necessary informatization means to provide effective basis for the intelligent fault analysis work of the EMU.

[0003] With the rapid development of railway transportation and the continuous progress of train control technology, higher and higher requirements are put forward for the detection and maintenance of train bottom equipment. The traditional vehicle bottom detection methods often rely on manual visual inspection and simple measuring tools, which are not only inefficient, but also easily affected by human factors, resulting in problems such as low measurement accuracy and incomplete data recording. In addition, due to the variety and complexity of the train bottom equipment, it is very difficult for the traditional detection methods to comprehensively and accurately detect the state of the equipment. Summary of the Invention

[0004] In order to solve the deficiencies of the prior art, the utility model provides a portable vehicle bottom detection tooling for vehicle-mounted equipment, which is used to solve the problem of the lack of special inspection tools for locomotive vehicle bottom equipment in the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] Portable vehicle-mounted equipment underbody detection tooling, including a human-computer interaction equipment unit and a detection equipment unit, is characterized in that: the detection equipment unit includes a detection ruler and a radio frequency antenna, a signal detection module, an attitude measurement module, an image acquisition module, a power management module, and a wireless communication module encapsulated in the detection ruler. Among them, the radio frequency antenna, the signal detection module, the attitude measurement module, the image acquisition module, the power management module, and the wireless communication module are respectively electrically connected to the core processor; there are three groups of the image acquisition modules, which are respectively located at both ends and in the middle of the detection ruler. There are six groups of the attitude measurement modules, and they are arranged in pairs at both ends and in the middle of the detection ruler. Among them, the two groups of attitude measurement modules in the middle are used to detect the BTM antenna, and the two groups of attitude measurement modules on both sides are used to detect the STM antenna and the radar. In addition, limit card slots matching the rails are respectively arranged at both ends of the detection ruler;

[0007] The human-computer interaction equipment unit is a smart phone or a tablet, and is connected to the detection equipment unit by radio.

[0008] Further, the detection ruler is composed of three non-metallic composite pipes with equal lengths and is connected by hinge joints.

[0009] Further, the detection ruler is a carbon fiber folding pipe.

[0010] Further, a control panel is installed at the proximal end of the detection ruler.

[0011] Further, a portable handle is provided on the detection ruler.

[0012] Further, the distance between the two limit card slots is 1435mm.

[0013] Further, the attitude measurement module is a 2D line laser measurement sensor.

[0014] Further, the image acquisition module is a low-light camera configured with a large aperture lens and a large size target surface image sensor.

[0015] Further, the signal detection module is an inductance coil module.

[0016] The beneficial effects of the present utility model are:

[0017] The application of the portable vehicle-mounted equipment underbody detection tooling can effectively improve the efficiency of the underbody equipment maintenance operation, solve the problems of the need for multiple people to cooperate in the maintenance process of the current EMU vehicle-mounted underbody equipment and the lack of effective detection tools, and realize that one person can carry the detection tool to complete the detection of the installation parameters, electrical parameters, and appearance status of the underbody equipment.

[0018] The implementation of this technology, based on the existing maintenance operations of underbody equipment, forms a set of on-vehicle equipment underbody maintenance tooling suitable for the site, which is a special detection tool. The detection process more scientifically and objectively reflects the on-site operation results, providing technical support for refined maintenance management. In addition, this detection tooling realizes the replacement of human eye detection with intelligent machine detection, improving the intelligent level of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of this tooling.

[0020] Figure 2 It is a schematic diagram of the general working principle of this tooling.

[0021] Figure 3 It is a side view of the inspection ruler.

[0022] Figure 4 It is a top view of the inspection ruler.

[0023] Figure 5 is Figure 3 the left view of.

[0024] Figure 6 It is the folded state of the inspection ruler.

[0025] Figure 7 It is a connection diagram of the functional components encapsulated in the inspection ruler.

[0026] Figure 8 It is the working principle of the 2D line laser measurement sensor in the inspection ruler.

[0027] Figure 9 It is a calculation application scenario diagram of this tooling.

[0028] In the figure:

[0029] 10 Inspection ruler, 11 Proximal end, 12 Distal end, 13 Control panel, 14 Limit card slot, 15 Hinge, 16 Attitude measurement module, 17 Image acquisition module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to improve the efficiency and accuracy of underbody equipment detection, this embodiment discloses a portable on-vehicle equipment underbody detection tooling. This tooling can achieve high-precision measurement and abnormal recording of the height of the train control underbody equipment from the rail surface and the appearance of the equipment. Later, through trend analysis of the obtained data, it can provide strong data support for the maintenance and management of the train.

[0031] This portable vehicle-mounted equipment underbody detection tooling, in which, the human-computer interaction equipment unit and the detection equipment unit are key components. The human-computer interaction equipment unit can be a smart phone or a tablet, with an intuitive operation interface and the function of real-time displaying detection results, enabling operators to conveniently and quickly obtain detection data. The detection equipment unit adopts a detection ruler with a three-section folding structure, and a variety of functional components are encapsulated inside the detection ruler. The above-mentioned functional components include but are not limited to radio frequency antennas, signal detection modules, attitude measurement modules, image acquisition modules, power management modules, wireless communication modules, and a core processor, with comprehensive functions such as signal detection, attitude measurement, image acquisition, and wireless communication. In summary, the emergence of the portable vehicle-mounted equipment underbody detection tooling provides a new solution for the detection and maintenance of train control underbody equipment, with important practical significance and application value.

[0032] The detection ruler in this technology has a three-section folding structure, and the outer shell is made of non-metallic composite materials, such as a detection ruler shell made of carbon fiber. The unfolded state is the working state, and the folded state is the non-working state. In the non-operation state, the detection ruler can be folded for easy carrying and storage. The detection ruler 10 can be marked as the proximal end 11 and the distal end 12 according to the usage state. The proximal end refers to the end close to the person when held by one hand manually. A control panel 13 is installed at the proximal end of the detection ruler, a portable handle (not shown in the figure) is installed at the central part of the middle section, and limit card slots 14 are installed at both the proximal and distal ends, that is, there are limit card slots suitable for the 1435mm standard gauge at both ends. These limit card slots are used for clamping and matching with the rails, and the mating surface of the limit card slots is used as the horizontal plane reference of the rails.

[0033] During the operation process, it is necessary to unfold the detection ruler and horizontally place it between two rails, so that the limit card slots 14 at both ends of the detection ruler are embedded inside the two rails and the upper surface of the detection ruler is in a horizontal state.

[0034] The above-mentioned detection ruler 10 is both a structural support for quickly building a on-site measurement reference platform and perceives, collects, and transmits data such as the appearance shape and performance parameters of the underbody equipment.

[0035] The human-computer interaction equipment unit, also called the control terminal, is a terminal device for realizing human-computer interaction and perceiving information processing and storage. Data interaction between the two is carried out wirelessly.

[0036] The working principle of this embodiment is that when performing underbody equipment detection operations, the detection personnel need to unfold the detection ruler and horizontally place it between two rails, referring to Figure 1 and Figure 2, insert the clamping grooves at both ends of the inspection ruler into the inner sides of the two rails, and make the upper surface of the inspection ruler in a horizontal state, providing a measurement reference platform for each functional module inside the inspection ruler;

[0037] During the special inspection operation of the BTM antenna, the inspection ruler automatically collects signal characteristics such as the center frequency, frequency deviation, and reference amplitude of the BTM device (located under the vehicle), installation parameters such as the installation height and inclination, and appearance images, and transmits them to the control terminal through a wireless channel; during the special inspection operation of the STM antenna or radar, the inspection ruler automatically collects the installation height and appearance images of the device to be inspected, and transmits them to the control terminal through a wireless channel; the operator can also retrieve and select basic information such as the car number, car end, device type, model, serial number, etc. through the control terminal, and perform operations such as real-time observation and annotation on the signal curve, installation parameters, and appearance images, and finally select and input the inspection operation results and save them.

[0038] The inspection ruler, control terminal, etc. will be described in more detail below.

[0039] The inspection ruler 10 is composed of three sections of non-metallic composite pipes, refer to Figures 3 to 6 , the lengths of the three sections are equal, and they are hinged together by hinges 15 and can be unfolded or folded. The inspection ruler internally encapsulates functional components such as a radio frequency antenna, a signal detection module, an attitude measurement module 16, an image acquisition module 17, a power management module, a wireless communication module, and a core processor. Each of the above modules is electrically connected to the core processor and uses the core processor as the control center to collect and transmit data, refer to Figure 7 . Among them, there are three groups of image acquisition modules 17, which are located at both ends and in the middle of the inspection ruler respectively. There are six groups of attitude measurement modules 16. The two groups of attitude measurement modules in the middle are responsible for detecting the BTM antenna, and the two groups of attitude measurement modules on both sides are responsible for detecting the STM antenna and radar respectively. The positions of the above attitude measurement modules and image acquisition modules refer to Figure 4 .

[0040] Furthermore, the above attitude measurement module 16 uses a 2D line laser measurement sensor. The attitude measurement principle of this 2D line laser measurement sensor is as follows: After using a cylindrical objective lens to diffuse the laser into a line laser, it is projected onto the surface of the target object to form a diffuse reflection. After the reflected light is imaged on the CMOS, the displacement or shape is measured by detecting the changes in position and shape, and finally the laser point cloud data represented in the form of an [angle, distance] binary group is output. When processing the laser point cloud data returned by the 2D line laser measurement sensor, it is necessary to design and apply an interference removal algorithm to filter out invalid information such as dead angle interference and protrusion interference contained in the data.

[0041] Perform comprehensive calculations on the laser point cloud data after removing interference. When detecting STM antennas and radars, only perform a single scan on the central plane of the device and obtain the average height. When detecting BTM antennas, first convert the measurement results [angle, distance] of the left / right sensors into two-dimensional data on the left / right side of the device, and obtain the height H2 of each point on the line. Then calculate the height H3 of each point on the line from the rail surface according to the fixed parameter H1 of the measuring scale. The calculation application scenarios are as Figure 8 shown.

[0042] Based on the heights H3 of multiple points, the plane data of the BTM antenna can be calculated. Cross-compare and calculate this plane data with the rail reference plane data, and finally obtain the installation parameters of the BTM device on the X, Y, and Z axes in three-dimensional space. The calculation application scenarios are as Figure 9 shown.

[0043] The control terminal is obtained by secondary development based on an Android system tablet or an Android system mobile phone. Its main functions include basic functions such as detection data display, detection data storage, and detection data management.

[0044] Furthermore, the image acquisition module 17 uses a low-light image sensor and combines post-image processing to ensure that the appearance image of the under-vehicle device can be clearly acquired in a low-light environment.

[0045] In this detection tooling, a low-light camera with a large-aperture lens and a large-size target surface image sensor is integrated, effectively improving the light input, so as to obtain an ideal low-light effect.

[0046] Furthermore, the signal detection module uses an inductance coil module. Utilizing the effect that an alternating electromagnetic field passing through the coil can generate an induced current, a loop antenna is designed and implemented to collect the downlink signal of the BTM device. The principle is that the loop antenna is connected to processing modules such as an impedance matching circuit, a band-pass filtering circuit, and an operational amplifier circuit to filter and amplify the downlink signal. Through multiple tests and adjustments under laboratory conditions, the signal acquisition frequency range is stabilized within the range of 0 to 50 MHz, and the output power is -10 dBm, meeting the detection requirements for the quality of the downlink signal of the BTM device and the interference situation in the surrounding space.

[0047] Furthermore, the RF antenna and the wireless communication module are configured with existing conventional technology modules, and it is only required to be able to transmit data, without special requirements.

[0048] Furthermore, the power management module provides stable power for the above-mentioned multiple modules and is a rechargeable module.

[0049] The above-described embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those skilled in the relevant art to the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A portable vehicle-mounted device under-vehicle detection tool, including a human-machine interaction device unit and a detection device unit, characterized in that: The detection device unit includes a detection ruler and a radio frequency antenna, a signal detection module, a posture measurement module, an image acquisition module, a power management module, and a wireless communication module encapsulated in the detection ruler, wherein the radio frequency antenna, the signal detection module, the posture measurement module, the image acquisition module, the power management module, and the wireless communication module are electrically connected to the core processor respectively; there are three groups of image acquisition modules, which are respectively located at the two ends and the middle of the detection ruler, and there are six groups of posture measurement modules, which are arranged in groups of two at the two ends and the middle of the detection ruler, and both ends of the detection ruler are respectively provided with limit slots that cooperate with the rails; The human-machine interaction device unit is a smart phone or a tablet, and is connected to the detection device unit via radio.

2. The portable vehicle-mounted equipment underbody inspection tool according to claim 1, characterized in that: The detection ruler is composed of three sections of non-metallic composite pipes with equal lengths, which are hingedly connected by hinges.

3. The portable vehicle-mounted equipment underbody inspection tool according to claim 2, characterized in that: The detection ruler is a carbon fiber folded tube.

4. The portable vehicle-mounted equipment underbody inspection tool according to claim 3, characterized in that: A control panel is installed at the proximal end of the detection ruler.

5. The portable vehicle-mounted equipment underbody inspection tool according to claim 4, characterized in that: The detection ruler is provided with a portable handle.

6. The portable vehicle-mounted equipment underbody inspection tool according to claim 5, characterized in that: The distance between the two limit slots is 1435mm.

7. The portable vehicle-mounted equipment underbody inspection tool according to claim 1, characterized in that: The posture measurement module is a 2D line laser measurement sensor.

8. The portable vehicle-mounted equipment underbody inspection tool according to claim 1, characterized in that: The image acquisition module is a low-light camera equipped with a large aperture lens and a large-size target surface image sensor.

9. The portable vehicle-mounted equipment underbody inspection tool according to claim 1, characterized in that: The signal detection module is an inductor coil module.

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