A high-speed train BTM antenna height measuring device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]有鉴于此,本实用新型提出一种动车组BTM天线高度测量装置,可以解决现有技术所存在的不能确保垂直度和测量结果偏差较大的缺陷
Smart Images

Figure CN224624783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of BTM antenna height measurement technology for high-speed trains, and in particular to a device for measuring the height of BTM antennas for high-speed trains. Background Technology
[0002] The BTM antenna on a high-speed train is a critical piece of equipment for train operation. Installed under the train, its height perpendicular to the track plane needs to be measured during routine maintenance and major overhauls. If the height is outside the standard range, it must be adjusted promptly to the standard range; otherwise, it will affect the BTM antenna's performance in receiving transponder messages, leading to no reception or decreased and unstable reception performance, thus affecting the normal operation of the high-speed train. Therefore, accurately measuring the height of the BTM antenna perpendicular to the track plane during routine maintenance and major overhauls is crucial. Currently, the method for measuring the height of the BTM antenna is manual. Maintenance personnel stand in the pit inside the high-speed train maintenance depot using a ruler or tape measure, hold the ruler or tape measure against the BTM antenna, visually check if it is perpendicular to the track surface, and then read the height. This method has obvious drawbacks: firstly, the ruler or tape measure can only visually assess verticality and cannot guarantee the accuracy; secondly, different maintenance personnel may have different viewing angles when manually measuring and reading the height, resulting in significant deviations in the measurement results. Utility Model Content
[0003] In view of this, this utility model proposes a BTM antenna height measuring device for high-speed trains, which can solve the defects of existing technologies that cannot ensure verticality and have large deviations in measurement results.
[0004] The technical solution of this utility model is implemented as follows: A height measuring device for a train's BTM antenna, comprising: A housing for mounting device components, including a level, a power module, an ultrasonic module, a display screen, a power switch, and a start button; The level is used to determine whether the position where the BTM antenna height is measured is horizontal; The power module is used to provide operating power; The ultrasonic module is used to measure the height of the BTM antenna; The display screen is used to display the measured BTM antenna height value; The power switch is connected to the power module and is used to control the power on and off of the measuring device; The start button is connected to the ultrasonic module and is used to start the measurement process.
[0005] As a further optional solution for the BTM antenna height measuring device for the EMU, the device components also include a storage module, which is connected to the ultrasonic module and the power module respectively, for storing measurement data.
[0006] As a further optional solution for the BTM antenna height measuring device for the EMU, the device components also include a voice module, which is connected to the ultrasonic module and the power module respectively, and is used to issue voice prompts and alarm sounds.
[0007] As a further optional solution for the BTM antenna height measuring device for the EMU, the device components also include an external interface, which includes a charging interface and a USB interface. The charging interface is used to charge the power module, and the USB interface is used to export measurement data from the storage module.
[0008] As a further optional solution for the BTM antenna height measuring device of the EMU, the display screen, level, power module, ultrasonic module, storage module, voice module, power switch, start button and external interface are all integrated on the housing to form an integrated structure.
[0009] As a further optional solution for the BTM antenna height measuring device of the EMU, the measuring device also includes an auxiliary rod, which is connected to the housing through a threaded hole, so that the housing can be placed vertically on the rails of the EMU maintenance depot for measurement during the test.
[0010] The beneficial effects of this invention are as follows: By setting a level to determine whether the device is placed horizontally when measuring the height of the BTM antenna, maintenance personnel can adjust the position of the device until it is horizontal, thereby ensuring that the sound waves emitted by the ultrasonic module can be perpendicularly directed to the BTM antenna. This solves the problem caused by inaccurate visual estimation of verticality using a ruler or tape measure in the prior art. By setting an ultrasonic module, the ultrasonic module determines the distance by emitting sound waves and calculating the time it takes for the sound waves to reflect back. This method is not affected by human factors (such as non-parallel or non-perpendicular viewing angles), thus greatly improving the accuracy and reliability of the measurement. In addition, the ultrasonic module not only measures the height, but also automatically compares the measured height with the internally stored standard. If the height is not within the standard range, the device will display the corresponding value and color on the display screen (red indicates unqualified, green indicates qualified). This automated comparison and judgment mechanism further ensures the accuracy of the measurement results and reduces the possibility of human judgment errors. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the structure of a BTM antenna height measuring device for high-speed trains according to this utility model; Explanation of reference numerals in the attached drawings: 1. Housing; 2. Level; 3. Display screen; 4. Power switch; 5. Start button; 6. External interface; 7. Auxiliary rod. Detailed Implementation
[0013] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0014] refer to Figure 1 A height measuring device for a BTM antenna on a high-speed train, comprising: Housing 1, for mounting device components, including level 2, power module, ultrasonic module, display screen 3, power switch 4 and start button 5; The level 2 is used to determine whether the position where the BTM antenna height is measured is horizontal; The power module is used to provide operating power; The ultrasonic module is used to measure the height of the BTM antenna; The display screen 3 is used to display the measured BTM antenna height value; The power switch 4 is connected to the power module and is used to control the power on and off of the measuring device; The start button 5 is connected to the ultrasonic module and is used to start the measurement process.
[0015] In some embodiments, the device components further include a storage module connected to the ultrasonic module and the power module respectively, for storing measurement data.
[0016] Specifically, the storage module can automatically record the BTM antenna height data for each measurement without manual recording, reducing the possibility of human error and ensuring the integrity and accuracy of the data. By saving the measurement data, maintenance personnel can review historical measurement records at any time to track and analyze the status of the EMU BTM antenna over a long period of time, which helps to identify potential problems in a timely manner and take corresponding measures.
[0017] In some embodiments, the device components further include a voice module, which is connected to the ultrasonic module and the power module respectively, and is used to issue voice prompts and alarm sounds.
[0018] Specifically, once the ultrasonic module completes the measurement, the voice module can immediately issue a voice prompt to inform the maintenance personnel whether the measurement result is qualified. This instant feedback mechanism allows maintenance personnel to quickly understand the measurement situation without having to check the display screen, improving work efficiency. If the measurement result is unqualified, the voice module will also emit a buzzer alarm sound to attract the attention of the maintenance personnel and ensure that the problem is dealt with in a timely manner.
[0019] In some embodiments, the device components further include an external interface 6, which includes a charging interface and a USB interface. The charging interface is used to charge the power module, and the USB interface is used to export measurement data from the storage module.
[0020] Specifically, the charging interface design makes charging the power module convenient and quick. Maintenance personnel can charge the power module without disassembling the device, ensuring the continuous availability of the device and reducing measurement interruptions caused by insufficient power. The addition of the USB interface allows measurement data to be easily exported from the storage module to a computer or other storage devices. This is conducive to long-term data preservation, backup, and further analysis and processing. Maintenance personnel can use computer software to conduct more in-depth analysis of the measurement data, discover potential problems, and optimize maintenance plans.
[0021] In some embodiments, the display screen 3, level 2, power module, ultrasonic module, storage module, voice module, power switch 4, start button 5, and external interface 6 are all integrated on the housing 1 to form an integrated structure.
[0022] Specifically, by integrating all key components onto the housing 1, a compact and integrated structure is formed, making the entire measuring device more portable. Maintenance personnel can easily carry the device to different work locations without worrying about components being lost or damaged. The integrated structure reduces the number of connection points between components, thereby reducing the risk of failure due to loose connections or poor contact. This helps improve the stability and reliability of the system and ensures the accuracy of the measurement results.
[0023] In some embodiments, the measuring device further includes an auxiliary rod 7, which is connected to the housing 1 via a threaded hole, and is used to enable the housing 1 to be placed vertically on the rails of the EMU maintenance depot for measurement during the test.
[0024] Specifically, the design of the auxiliary rod 7 allows the device to be stably and vertically placed on the rail during measurement. Physical support ensures that the housing 1 and the internal ultrasonic module are perpendicular to the rail plane, thus overcoming the difficulty of ensuring perpendicularity during manual measurement and improving measurement accuracy. The auxiliary rod 7 increases the contact area between the device and the rail, providing additional support points and effectively reducing device swaying caused by external factors (such as wind or human contact) during measurement, ensuring the stability of measurement data. The threaded hole connection method makes the installation and disassembly of the auxiliary rod quick and easy. Maintenance personnel can quickly install the auxiliary rod onto the housing when needed, and easily disassemble it after the measurement is completed, making it convenient for carrying and storage.
[0025] The specific workflow is as follows: When it is necessary to measure the height of the transponder antenna of a high-speed train, maintenance personnel should carry this device to the high-speed train maintenance depot. For ease of carrying and movement, the two auxiliary rods 7 should not be connected to the device on the way to the depot. Upon arrival at the depot, connect the two auxiliary rods 7 to the device. First, confirm that the high-speed train has lowered its pantograph and is powered off. With the ATP (Automatic Train Protection) de-energized, place the device vertically on the rails in the depot's trench. Observe whether the level indicator is horizontal. If not, adjust the position until the level indicator 2 indicates horizontal. Then, turn on the power switch 4. The device will then power on and perform a self-test. After the self-test is complete, the display screen 3 will show a green "0000". Press the start button, and the various modules of the device will begin working. (Pressing the start button 5 once sets the default value; pressing it twice allows selection of the train model and BTM antenna manufacturer. The correct train model and manufacturer should be selected before starting to ensure the device correctly judges the height during measurement.) (If the measurement is successful), the ultrasonic ranging module begins measuring the height of the BTM antenna. At this point, the ultrasonic ranging module emits sound waves through the ranging hole to the surface of the BTM antenna (the period is set to once every 30 seconds), and calculates the distance from the BTM antenna. Simultaneously, it automatically compares the calculated height with the internally stored standard. If the height is outside the standard range, the voice module emits the voice message "Unqualified, adjustment required" and a buzzer alarm, and the result is displayed on the screen in red. If the height is within the standard range, the voice module emits the voice message "Qualified," and the result is displayed on the screen in green. Meanwhile, the ultrasonic ranging module sends the measured height value to the storage module, which automatically records and saves it. The storage module connects to external interface 6 via USB, allowing the saved data to be exported using a USB flash drive, eliminating the need for maintenance personnel to memorize the measured heights or fill out paper logs.
[0026] After the measurement is completed, first turn off the power switch, then loosen and remove the two auxiliary rods 7, and then put the device into the tool bag. This way, it can be easily carried and moved to different work locations.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A height measuring device for a BTM antenna on a high-speed train, characterized in that, include: A housing for mounting device components, including a level, a power module, an ultrasonic module, a display screen, a power switch, and a start button; The level is used to determine whether the position where the BTM antenna height is measured is horizontal; The power module is used to provide operating power; The ultrasonic module is used to measure the height of the BTM antenna; The display screen is used to display the measured BTM antenna height value; The power switch is connected to the power module and is used to control the power on and off of the measuring device; The start button is connected to the ultrasonic module and is used to start the measurement process.
2. The BTM antenna height measuring device for high-speed trains according to claim 1, characterized in that, The device also includes a storage module, which is connected to the ultrasonic module and the power module respectively, and is used to store measurement data.
3. The BTM antenna height measuring device for high-speed trains according to claim 2, characterized in that, The device also includes a voice module, which is connected to the ultrasonic module and the power module respectively, and is used to issue voice prompts and alarm sounds.
4. The BTM antenna height measuring device for high-speed trains according to claim 3, characterized in that, The device components also include external interfaces, including a charging interface and a USB interface. The charging interface is used to charge the power module, and the USB interface is used to export measurement data from the storage module.
5. The BTM antenna height measuring device for high-speed trains according to claim 4, characterized in that, The display screen, level, power module, ultrasonic module, storage module, voice module, power switch, start button, and external interface are all integrated on the housing, forming an integrated structure.
6. The BTM antenna height measuring device for high-speed trains according to claim 5, characterized in that, The measuring device also includes an auxiliary rod, which is connected to the housing through a threaded hole, so that the housing can be placed vertically on the rails in the maintenance depot of the EMU during the test.