Train luggage rack monitoring device
By installing a monitoring device consisting of micro-motion monitoring sensors, cameras, and distance monitoring sensors on the train's luggage racks, combined with an extension mechanism and a processor for automatic judgment, the problem of no blind spots in the monitoring of train luggage racks has been solved, improving safety and reducing operation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING PASSENGER SECTION OF CHINA RAILWAY SHANGHAI BUREAU GRP CO LTD
- Filing Date
- 2025-09-19
- Publication Date
- 2026-07-14
AI Technical Summary
The lack of systematic monitoring methods for existing train luggage racks makes it impossible to identify potential safety risks in advance, increasing the probability of luggage falling and injuring passengers.
The monitoring device, composed of micro-motion monitoring sensors, cameras, and distance monitoring sensors, monitors the status of the train's luggage racks in real time. Combined with the telescopic mechanism, it achieves all-round monitoring without blind spots, and the processor automatically determines the safety status and triggers warning lights.
It enables comprehensive, all-around monitoring of train luggage racks, improving safety, reducing maintenance costs, and allowing for rapid response to potential safety hazards.
Smart Images

Figure CN224499691U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of train luggage rack monitoring technology, and in particular relates to a train luggage rack monitoring device. Background Technology
[0002] Currently, in the railway transportation sector, train luggage racks are the core area for passengers to store their luggage, and their safety is directly related to the safety of passengers' property and their travel experience. With the increase in train speed, passenger flow, and the diversification of the types and sizes of luggage carried by passengers, the safety management deficiencies of traditional train luggage racks have become increasingly prominent and can no longer meet the safety requirements of modern railway transportation.
[0003] Among them, the existing luggage racks on trains generally lack systematic monitoring methods, and most rely on manual inspections or passengers' own attention. They can only deal with obvious problems such as luggage falling or shifting after they have occurred, and cannot identify potential safety risks in advance, which increases the probability of luggage falling and injuring passengers.
[0004] To address this issue, we propose a train luggage rack monitoring device. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned technical problems by providing a train luggage rack monitoring device.
[0006] In view of this, the present invention provides a train luggage rack monitoring device, comprising: a monitoring compartment, wherein an installation assembly is provided on the inner wall of the monitoring compartment, the installation assembly being used to install a protective shell, a micro-motion monitoring sensor, a camera, and a distance monitoring sensor; a first bracket is detachably installed on the side wall of the protective shell, and a second bracket is installed on the first bracket via a telescopic mechanism, the second bracket being detachably installed with the micro-motion monitoring sensor, the camera, and the distance monitoring sensor, wherein the micro-motion monitoring sensor, the camera, and the distance monitoring sensor are all used to monitor the status of the train luggage rack.
[0007] Furthermore, the installation assembly includes a first installation groove on one side of the inner wall of the monitoring chamber, a second installation groove on the other side of the inner wall of the monitoring chamber, an installation cylinder on one side of the second installation groove and the installation cylinder penetrating through the monitoring chamber, and a third installation groove symmetrically provided on both sides of the axis of the installation cylinder on the side wall of the monitoring chamber.
[0008] Furthermore, both of the third mounting slots are provided with outer covers, which are fixed to the surface of the monitoring chamber. Both ends of the outer covers are provided with detection holes, which correspond to the monitoring ends of the distance monitoring sensors.
[0009] Furthermore, several warning lights are fixedly installed at the bottom of the monitoring chamber. The signal output terminals of the micro-motion monitoring sensor, camera, and distance monitoring sensor are connected to the signal input terminal of the processor. The signal output terminal of the processor is connected to the signal input terminal of the warning lights. The processor is installed inside the protective shell.
[0010] Furthermore, the telescopic mechanism includes piston cylinders welded to both sides of the first bracket, inner rods slidably installed inside the piston cylinders, and the other ends of the two inner rods are welded to the side wall of the second bracket. Positioning bolts are threaded onto the side wall of the piston cylinders, and the positioning bolts abut against the side wall of the inner rods.
[0011] Furthermore, the protective shell fits into the first mounting slot, the micro-motion monitoring sensor fits into the second mounting slot, the camera fits into the mounting cylinder, and the two distance monitoring sensors fit into the two third mounting slots respectively.
[0012] Furthermore, each of the four corners of the first mounting groove is provided with a first mounting hole, and each of the four corners of the protective shell is provided with a second mounting hole, with the first mounting hole and the second mounting hole corresponding to each other.
[0013] The beneficial effects of this utility model are:
[0014] By setting up three types of monitoring components—micro-motion monitoring sensors, cameras, and distance monitoring sensors—the status of the train's luggage rack can be monitored from different dimensions. The micro-motion monitoring sensors can detect whether there is abnormal vibration or displacement of the luggage rack, the cameras can directly capture real-time images of the luggage rack area, and the distance monitoring sensors can detect whether there are any safety hazards in the distance between the luggage and the edge of the luggage rack, or between the luggage. The three components achieve comprehensive and blind-spot-free monitoring of the luggage rack status, greatly improving the safety of the luggage rack during use. The protective shell sidewall connects the first bracket and the second bracket through a telescopic mechanism, and the micro-motion monitoring sensors, cameras, and distance monitoring sensors are all detachably installed on the second bracket. The telescopic mechanism can flexibly adjust the position and height of the monitoring components according to actual monitoring needs, ensuring that the monitoring components can be accurately aligned with the monitoring area. The detachable installation method facilitates the inspection, replacement, and maintenance of the monitoring components, reducing later operation and maintenance costs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a train luggage rack monitoring device proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of the installation components of a train luggage rack monitoring device proposed in this utility model;
[0017] Figure 3 This is a schematic diagram of the telescopic mechanism of a train luggage rack monitoring device proposed in this utility model;
[0018] Figure 4 This is a schematic diagram of the first and second supports of a train luggage rack monitoring device proposed in this utility model;
[0019] Figure 5 This is a schematic diagram of the warning light distribution of a train luggage rack monitoring device proposed in this utility model;
[0020] The markings in the diagram are as follows:
[0021] 1. Monitoring chamber; 11. First mounting slot; 12. Second mounting slot; 13. Mounting cylinder; 14. Third mounting slot; 15. Outer cover; 16. Detection hole; 17. Warning light; 2. First bracket; 21. Piston cylinder; 22. Inner rod; 23. Positioning bolt; 24. Second bracket; 3. Protective shell; 31. Micro-motion monitoring sensor; 32. Camera; 33. Distance monitoring sensor; 34. First mounting hole; 35. Second mounting hole. Detailed Implementation
[0022] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0023] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0024] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0025] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0026] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0027] Reference Figures 1 to 5 A train luggage rack monitoring device, comprising:
[0028] The monitoring compartment 1 has an installation assembly on its inner wall. The installation assembly is used to install the protective shell 3, the micro-motion monitoring sensor 31, the camera 32 and the distance monitoring sensor 33. The monitoring compartment 1 can be directly installed on the ceiling of the train room by means of adhesive or bolt installation.
[0029] The protective shell 3 has a first bracket 2 detachably mounted on its side wall. The protective shell 3 is detachably mounted on the first bracket 2. The first bracket 2 is mounted on the second bracket 24 via a telescopic mechanism. The micro-motion monitoring sensor 31, camera 32 and distance monitoring sensor 33 are detachably mounted on the second bracket 24 via bolts. The micro-motion monitoring sensor 31, camera 32 and distance monitoring sensor 33 are all used to monitor the status of the train's luggage rack.
[0030] In use, the micro-motion monitoring sensor 31 uses its internal sensing element to sense the vibration frequency and displacement changes of the train's luggage rack and luggage in real time. When the luggage rack experiences abnormal vibration or slight displacement due to unstable luggage placement or sudden braking of the train, the sensor converts the physical signal into an electrical signal. The camera 32 collects image information of the luggage rack area in real time through its lens and transmits the image signal to the subsequent processing unit (i.e., the train host). The distance monitoring sensor 33 uses infrared, laser, and other technologies (i.e., adopts an infrared ranging sensor or a laser ranging sensor) to emit detection signals to the edge of the luggage rack and the gap between the luggage. The signal is received after reflection, and the distance data is obtained by calculating the signal propagation time difference. The three types of monitoring components operate synchronously and obtain luggage rack status information from three dimensions: dynamic changes, visual images, and spatial distance. When it is necessary to adjust the position of the monitoring components to adapt to different monitoring scenarios, the locking component of the telescopic mechanism is first loosened to make the connection structure between the first bracket 2 and the second bracket 24 movable. Pushing or pulling the second bracket 24 moves the micro-motion monitoring sensor 31, camera 32, and distance monitoring sensor 33 connected to it along the telescopic direction until the monitoring components are aligned with the target monitoring area. After the position is adjusted, the telescopic mechanism is locked again to fix the position of the second bracket 24, ensuring that the monitoring components are stably in the set monitoring angle and range. If the monitoring components need to be repaired or replaced, the connection structure between the second bracket 24 and the components can be directly disassembled, the old components can be removed, and the new components can be installed. There is no need to modify the overall structure of the device, which enables quick maintenance and component replacement and adapts to the structural differences of luggage racks of different models. The mounting components on the inner wall of the monitoring compartment 1 are pre-set with mounting interfaces and fixing points that match the protective shell 3, various monitoring sensors, and camera 32. During installation, the protective shell 3, micro-motion monitoring sensor 31, camera 32, and distance monitoring sensor 33 are aligned with the corresponding mounting positions and fixedly connected by bolt mounting components, so that each component is stably connected to the monitoring compartment 1.
[0031] In the example of this application, the installation component includes a first installation groove 11 opened on one side of the inner wall of the monitoring chamber 1, a second installation groove 12 opened on the other side of the inner wall of the monitoring chamber 1, an installation cylinder 13 provided on one side of the second installation groove 12 and the installation cylinder 13 penetrating through the monitoring chamber 1, and a third installation groove 14 symmetrically opened on both sides of the axis of the installation cylinder 13 on the side wall of the monitoring chamber 1.
[0032] As a preferred example of this utility model, the installation assembly divides dedicated installation spaces for different components by opening a first installation groove 11, a second installation groove 12, an installation cylinder 13, and a third installation groove 14 of specific sizes and shapes on the inner wall of the monitoring chamber 1. The protective shell 3 is embedded into the first installation groove 11 according to its own contour, and its outer wall fits against the groove wall to achieve initial positioning. The micro-motion monitoring sensor 31 is installed into the second installation groove 12, and the groove structure forms a wrap-around limit for the sensor. The camera 32 is inserted into the installation cylinder 13, and the cylinder wall provides radial support for the camera 32 to ensure that the lens orientation is fixed. The distance monitoring sensor 33 is respectively inserted into the two third installation grooves 14, and the side walls of the groove restrict the lateral movement of the sensor. Each component is independently fixed in its dedicated installation area to avoid mutual contact or compression. At the same time, the internal space of the monitoring chamber 1 is reasonably allocated, making the overall layout of the device compact and reducing the space occupied by the components. When installing or maintaining, the staff can quickly identify the installation points of each component according to the position of the groove, without having to find the fixed position one by one, thus improving the operational efficiency.
[0033] In the example of this application, an outer cover 15 is provided on the outside of both third mounting slots 14, and the outer cover 15 is fixed to the surface of the monitoring chamber 1. Detection holes 16 are provided through both ends of the outer cover 15, and the detection holes 16 correspond to the monitoring end of the distance monitoring sensor 33.
[0034] As a preferred example of this utility model, the aperture and position of the detection hole 16 are precisely aligned with the signal propagation path of the sensor, ensuring that the detection signal emitted by the distance monitoring sensor 33 can smoothly pass through the detection hole 16 to reach the monitoring target, and the reflected signal can also be received by the sensor through the detection hole 16 without affecting the signal propagation efficiency and detection range.
[0035] In the example of this application, several warning lights 17 are fixedly installed at the bottom of the monitoring chamber 1. The signal output terminals of the micro-motion monitoring sensor 31, camera 32 and distance monitoring sensor 33 are connected to the signal input terminal of the processor. The signal output terminal of the processor is connected to the signal input terminal of the warning lights. The processor is installed inside the protective shell 3.
[0036] As a preferred example of this utility model, the processor pre-stores threshold values for determining the safety status of the luggage rack (such as normal vibration frequency range, safe distance threshold, and criteria for judging abnormal luggage shaking). The micro-motion monitoring sensor 31, camera 32, and distance monitoring sensor 33 transmit the collected vibration signals, image signals, and distance signals to the processor in real time. The processor performs spectral analysis on the vibration signals. If the vibration frequency exceeds the normal range or the displacement reaches the abnormal threshold, it is determined that the luggage rack is dynamically abnormal. The processor performs feature recognition on the image signals (such as the luggage tilt angle and visual features of the luggage falling trend). If abnormal luggage placement is detected, it is determined to be visually abnormal. The processor performs numerical comparison on the distance signals. If the distance between the luggage and the edge of the luggage rack is less than the safe threshold or the gap between the luggage is too large, causing the luggage to easily slip, it is determined to be a distance abnormality. When the processor detects any type of abnormal signal, it immediately generates a warning command, sends an electrical signal to the warning light 17, triggers the warning light 17 to light up, and conveys a safety hazard warning to staff or passengers. The entire process, from signal acquisition, analysis and judgment to warning triggering, is automatically completed by the system without manual intervention, achieving millisecond-level response.
[0037] In the example of this application, the telescopic mechanism includes piston cylinders 21 welded to both sides of the first bracket 2. Inner rods 22 are slidably installed inside the piston cylinders 21. The other ends of the two inner rods 22 are welded to the side wall of the second bracket 24. Positioning bolts 23 are threadedly installed on the side wall of the piston cylinders 21. A threaded hole is opened on the side wall of the piston cylinders 21, and the threaded hole is threadedly connected to the positioning bolts 23. The positioning bolts 23 abut against the side wall of the inner rods 22.
[0038] As a preferred example of this utility model, the telescopic mechanism consists of a piston cylinder 21, an inner rod 22, and a positioning bolt 23. The piston cylinder 21 is welded and fixed to the first bracket 2. One end of the inner rod 22 is inserted into the piston cylinder 21, and the other end is welded to the second bracket 24, forming a telescopic rod-cylinder structure. When it is necessary to install the monitoring component, the positioning bolt 23 is rotated counterclockwise to separate the bolt end from the side wall of the inner rod 22, thereby releasing the lock on the inner rod 22. At this time, the inner rod 22 can slide freely along the axial direction in the piston cylinder 21, pushing or pulling the second bracket 24, and causing the monitoring component to move with the inner rod 22 until the protective shell 3, the micro-motion monitoring sensor 31, the camera 32, and the distance monitoring sensor 33 are respectively embedded in the first mounting groove 11, the second mounting groove 12, the mounting cylinder 13, and the third mounting groove 14. After the position is determined, the positioning bolt 23 is rotated clockwise to press the bolt end tightly against the side wall of the inner rod 22. The position of the inner rod 22 is locked by the friction between the bolt and the inner rod 22, preventing the inner rod 22 from sliding in the piston cylinder 21.
[0039] In the example of this application, the protective shell 3 is fitted with the first mounting groove 11, the micro-motion monitoring sensor 31 is fitted with the second mounting groove 12, the camera 32 is fitted with the mounting cylinder 13, and the two distance monitoring sensors 33 are fitted with the two third mounting grooves 14 respectively.
[0040] As a preferred example of this utility model, the outer dimensions of the protective shell 3 perfectly match the cavity dimensions of the first mounting groove 11, and the outer wall contour of the protective shell 3 fits snugly against the groove wall, achieving precise positioning without additional adjustments during insertion. The cross-sectional shape of the micro-motion monitoring sensor 31 is consistent with the groove opening shape of the second mounting groove 12, allowing the sensor to be directly inserted into the groove, with the groove providing circumferential restraint for the sensor. The outer diameter of the camera 32 is the same as the inner diameter of the mounting cylinder 13, and after the camera 32 is inserted into the mounting cylinder 13, the cylinder wall is in close contact with the outer wall of the camera 32, restricting the radial movement of the camera 32. The thickness and width of the distance monitoring sensor 33 are adapted to the groove width and depth of the third mounting groove 14, ensuring no gap between the sensor and the groove after insertion. During installation, the operator only needs to push each component into the corresponding groove and the opening direction of the cylinder to complete the initial positioning, and then reinforce it with simple fixing connectors. There is no need to repeatedly adjust the position of the components or use measuring tools for calibration, significantly shortening the installation time, reducing manual operation errors during the installation process, and improving assembly efficiency.
[0041] In the example of this application, a first mounting hole 34 is provided through each of the four corners of the first mounting groove 11, and a second mounting hole 35 is provided through each of the four corners of the protective shell 3. The first mounting hole 34 and the second mounting hole 35 correspond to each other, and bolts are installed in the corresponding first mounting hole 34 and second mounting hole 35 with internal threads.
[0042] As a preferred example of this utility model, the first mounting holes 34 at the four corners of the first mounting groove 11 and the second mounting holes 35 at the four corners of the protective shell 3 are completely corresponding in position, diameter and number, and the hole distribution is symmetrical. When installing the protective shell 3, the protective shell 3 is first inserted into the first mounting groove 11 so that the first mounting holes 34 and the second mounting holes 35 are aligned. Then, the bolts are passed through the corresponding mounting holes and tightened with nuts. The stable installation of the protective shell 3 provides a stable working environment for the processor inside, avoiding problems such as poor wire contact and loose chip due to the shaking of the protective shell 3. This ensures that the processor can stably receive, analyze and monitor signals and execute control commands normally.
[0043] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A train luggage rack monitoring device, characterized in that... ,include: The monitoring chamber (1) has an installation assembly on its inner wall. The installation assembly is used to install a protective shell (3), a micro-motion monitoring sensor (31), a camera (32), and a distance monitoring sensor (33). The protective shell (3) has a first bracket (2) detachably mounted on its side wall. The first bracket (2) has a second bracket (24) mounted on it via a telescopic mechanism. The second bracket (24) is detachably mounted with a micro-motion monitoring sensor (31), a camera (32), and a distance monitoring sensor (33). The micro-motion monitoring sensor (31), the camera (32), and the distance monitoring sensor (33) are all used to monitor the status of the train's luggage rack.
2. The train luggage rack monitoring device according to claim 1, characterized in that, The installation assembly includes a first installation groove (11) opened on one side of the inner wall of the monitoring chamber (1), a second installation groove (12) opened on the other side of the inner wall of the monitoring chamber (1), an installation cylinder (13) provided on one side of the second installation groove (12), and the installation cylinder (13) passing through the monitoring chamber (1), and a third installation groove (14) symmetrically opened on both sides of the axis of the installation cylinder (13) on the side wall of the monitoring chamber (1).
3. The train luggage rack monitoring device according to claim 2, characterized in that, Both of the third mounting slots (14) are provided with outer covers (15), and the outer covers (15) are fixed on the surface of the monitoring chamber (1). Both ends of the outer covers (15) are provided with detection holes (16), and the detection holes (16) correspond to the monitoring end of the distance monitoring sensor (33).
4. The train luggage rack monitoring device according to claim 3, characterized in that, Several warning lights (17) are fixedly installed at the bottom of the monitoring chamber (1). The signal output terminals of the micro-motion monitoring sensor (31), camera (32) and distance monitoring sensor (33) are connected to the signal input terminal of the processor. The signal output terminal of the processor is connected to the signal input terminal of the warning light. The processor is installed inside the protective shell (3).
5. A train luggage rack monitoring device according to claim 4, characterized in that, The telescopic mechanism includes piston cylinders (21) welded on both sides of the first bracket (2). Inner rods (22) are slidably installed inside the piston cylinders (21). The other ends of the two inner rods (22) are welded to the side wall of the second bracket (24). Positioning bolts (23) are threadedly installed on the side wall of the piston cylinders (21). The positioning bolts (23) abut against the side wall of the inner rods (22).
6. A train luggage rack monitoring device according to claim 5, characterized in that, The protective shell (3) fits into the first mounting slot (11), the micro-motion monitoring sensor (31) fits into the second mounting slot (12), the camera (32) fits into the mounting cylinder (13), and the two distance monitoring sensors (33) fit into the two third mounting slots (14) respectively.
7. A train luggage rack monitoring device according to claim 6, characterized in that, The first mounting groove (11) has a first mounting hole (34) through each of its four corners, and the protective shell (3) has a second mounting hole (35) through each of its four corners. The first mounting hole (34) and the second mounting hole (35) correspond to each other.