Subway vehicle-mounted synchronous data acquisition device

Abstract

The utility model relates to the technical field of subway data acquisition devices, and particularly provides a subway vehicle-mounted synchronous data acquisition device which comprises a device box, and a microphone, a gyroscope, an accelerometer and a controller which are placed in the device box, the microphone is used for collecting sound information of the subway train; the gyroscope is used for collecting angular velocity information of the subway train; the accelerometer is used for collecting acceleration information of the subway train; the microphone, the gyroscope and the accelerometer are all connected with the controller; and the controller is provided with a built-in power supply and a built-in memory card. According to the subway vehicle-mounted synchronous data acquisition device, power can be supplied to the microphone, the gyroscope and the accelerometer through the built-in power supply of the controller, subway train information acquired in the microphone, the gyroscope and the accelerometer is gathered and stored through the built-in memory card, a satellite signal positioning system is not needed, monitoring errors can be reduced, and the accuracy of data acquisition is improved. Carrying is convenient and installation is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of subway data acquisition devices, in particular to a subway vehicle-mounted synchronous data acquisition device. BACKGROUND

[0002] With the rapid development of rail transit, some new problems have gradually emerged in the process of subway operation, such as repeated rail wear and tear, train shaking and swaying caused by unknown reasons, and increasingly serious environmental noise. In order to more effectively solve the above problems, it is necessary to automatically locate the disease information of rail transit, and the sensing monitoring device is an important support for rail transit state monitoring.

[0003] At present, the vehicle-mounted sensing monitoring device widely used is based on satellite signals to realize positioning function, which is applied to ground and bridge rail transit systems and can achieve efficient monitoring effect. However, since the subway is mostly an underground rail transit system, it often cannot receive satellite signals when running in the underground environment. If the vehicle-mounted intelligent monitoring equipment based on satellite signals to realize positioning function is used for monitoring, manual mileage calibration is required. On the one hand, the manual mileage calibration method is complex, and with the running of the train, error accumulation will be continuously generated, resulting in inaccurate positioning, which cannot quickly and accurately locate the damage position, affecting the overall maintenance efficiency of the train line. On the other hand, the vehicle-mounted sensing monitoring device usually adopts an invasive installation method, which will change or damage the existing subway infrastructure to a certain extent during the installation process, which is high in cost and will bring safety risks, interfere with normal rail transit operation, and increase the risk of accidents.

[0004] Therefore, the existing subway vehicle-mounted data acquisition device has the problems of using satellite signals to realize positioning function for monitoring, having monitoring errors, and the device being invasive and causing damage to the subway infrastructure. CONTENT OF THE INVENTION

[0005] In view of the above problems of the prior art, the purpose of the present application is to provide a subway vehicle-mounted synchronous data acquisition device, which aims to solve the problems of the existing subway vehicle-mounted data acquisition device, such as using satellite signals to realize positioning function for monitoring, having monitoring errors, and the device being invasive and causing damage to the subway infrastructure.

[0006] The technical scheme adopted by the application to solve the technical problem is as follows: a subway vehicle-mounted synchronous data acquisition device is provided, comprising: a device box, and a microphone, a gyroscope, an accelerometer and a controller which are all placed in the device box; the microphone is used to collect sound information of a subway train; the gyroscope is used to collect angular velocity information of the subway train; the accelerometer is used to collect acceleration information of the subway train; the microphone, the gyroscope and the accelerometer are all connected with the controller; the controller has a built-in power supply and a built-in memory card; the built-in power supply is used to supply power for the controller, the microphone, the gyroscope and the accelerometer, and the built-in memory card is used to store information of the microphone, the gyroscope and the accelerometer.

[0007] Optionally, a first fixing member is arranged in the device box, and the first fixing member is clamped and fixed with the controller.

[0008] Optionally, the first fixing member comprises a first fixing block and a second fixing block which are connected with each other, and an included angle formed between the first fixing block and the second fixing block corresponds to the controller.

[0009] Optionally, the subway vehicle-mounted synchronous data acquisition device further comprises a fixing screw, the controller is provided with a positioning block, and the positioning block is provided with a through hole corresponding to the fixing screw.

[0010] Optionally, the device box is provided with a fixing base, and the microphone is located on the fixing base.

[0011] Optionally, the device box is provided with a second fixing member, the second fixing member is clamped and connected with the fixing base; and the device box is provided with a fourth fixing member, and the fourth fixing member is clamped and connected with the gyroscope.

[0012] Optionally, the device box is provided with a fixing rod, and the accelerometer is provided with a through hole corresponding to the fixing rod.

[0013] Optionally, the subway vehicle-mounted synchronous data acquisition device further comprises a box cover, the box cover is connected with the device box to form a hollow sealed space, and the microphone, the gyroscope, the accelerometer and the controller are all located in the sealed space.

[0014] Optionally, the device box is provided with an embedded convex, and the box cover is provided with an embedded groove corresponding to the embedded convex.

[0015] Optionally, the device box is provided with an openable and closable connecting clamp, and the openable and closable connecting clamp is connected with the subway train.

[0016] Compared with the prior art, the subway vehicle-mounted synchronous data acquisition device provided in the application comprises a device box and a controller, a microphone, a gyroscope and an accelerometer placed on the device box, wherein the microphone, the gyroscope and the accelerometer are connected with the controller, the microphone, the gyroscope and the accelerometer can be powered by the built-in power supply of the controller, and the subway train information collected by the microphone, the gyroscope and the accelerometer can be summarized and stored through the built-in memory card; at the same time, the microphone, the gyroscope and the accelerometer are all portable monitoring instruments, and without the aid of a satellite signal positioning system, the corresponding sound, angular velocity and acceleration information can be collected, and the monitoring error can be reduced; in addition, the subway vehicle-mounted synchronous data acquisition device is convenient to carry and simple to install, and only needs to be placed in the subway train to work, so that the subway train can be synchronously monitored and data can be collected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 is a schematic diagram of a subway vehicle-mounted synchronous data acquisition device provided in the application;

[0018] Figure 2 Fig. 2 is a schematic diagram of another embodiment of a subway vehicle-mounted synchronous data acquisition device provided in the application.

[0019] REFERENCE SIGNS:

[0020] 1, device box; 11, first fixing member; 12, second fixing member; 13, third fixing member; 14, fourth fixing member; 15, openable and closable connecting clamp; 16, fixing rod; 17, embedded protrusion; 2, controller; 21, positioning block; 22, first power supply line; 23, second power supply line; 24, third power supply line; 3, microphone; 31, fixing base; 4, accelerometer; 5, gyroscope; 6, box cover; 61, embedded recess. DETAILED DESCRIPTION

[0021] The embodiments of the application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the application, and cannot be understood as a limitation on the application.

[0022] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the present application, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Combined with reference Figure 1 In the first embodiment of the present application, a subway vehicle synchronous data acquisition device is provided, comprising: a device box 1, and a microphone 3, a gyroscope 5, an accelerometer 4 and a controller 2 placed in the device box 1; the microphone 3 is used to collect the sound information of the subway train; the gyroscope 5 is used to collect the angular velocity information of the subway train; the accelerometer 4 is used to collect the acceleration information of the subway train; the microphone 3, the gyroscope 5 and the accelerometer 4 are connected with the controller 2; the controller 2 has a built-in power supply and a built-in storage card; the built-in power supply is used to supply power for the controller 2, the microphone 3, the gyroscope 5 and the accelerometer 4, and the built-in storage card is used to store the information of the microphone 3, the gyroscope 5 and the accelerometer 4.

[0025] The device box 1 can be used by placing it inside the subway train or hanging it on the surface of the subway train. The microphone 3 can be a high-sensitivity microphone 3 to monitor the noise level of the subway train in real time; specifically, the sampling frequency of the microphone 3 can reach 50kHz. Both the accelerometer 4 and the gyroscope 5 can be high-precision accelerometers 4 and gyroscopes 5, used for real-time monitoring of the train's vibration and speed levels; specifically, the accelerometer 4 has a sampling frequency of up to 10kHz and can measure the acceleration changes of the train in the x, y, and z directions, with a maximum range of 16g; the gyroscope 5 is responsible for measuring the angular velocity in the Rx, Ry, and Rz directions, with a maximum range of 2000dps.

[0026] Controller 2 features a built-in power supply and a built-in memory card. The built-in memory card is a high-capacity card, capable of collecting more data and reducing the frequency of memory card replacement. The memory card's capacity is preferably 1TB or higher. It is also small in size, plug-and-play, easy to maintain and replace, and facilitates data processing and backup. The built-in power supply can be selected according to actual needs, specifically a lithium battery, providing a stable power supply for the entire device. This ensures stable operation for extended periods even without an external power source, providing reliable power for data collection. Controller 2 also has an external power interface for operation via connection to an external power source; it further includes a wireless communication interface for wireless data transmission and exchange.

[0027] The controller 2, microphone 3, gyroscope 5, and accelerometer 4 are all housed inside the device box, making the connections between them more compact and efficient. Specifically, the controller 2 is connected to the microphone 3, gyroscope 5, and accelerometer 4 via power cables, ensuring a stable power supply and enabling rapid data transmission and storage via a built-in memory card. More specifically, the controller 2 is connected to the microphone 3 via a first power cable 22, to the accelerometer 4 via a second power cable 23, and to the gyroscope 5 via a third power cable 24. The device box can be magnetically or adhesively fixed inside the subway train.

[0028] This embodiment provides a subway vehicle-mounted synchronous data acquisition device, including a device box 1 and a controller 2, a microphone 3, a gyroscope 5, and an accelerometer 4 placed on the device box 1. The microphone 3, gyroscope 5, and accelerometer 4 are all connected to the controller 2, which can power the microphone 3, gyroscope 5, and accelerometer 4 through its built-in power supply. The controller 2 also aggregates and stores the subway train information collected by the microphone 3, gyroscope 5, and accelerometer 4 through a built-in memory card. Furthermore, the microphone 3, gyroscope 5, and accelerometer 4 are all portable monitoring instruments, capable of collecting corresponding sound, angular velocity, and acceleration information without the need for a satellite signal positioning system, thus reducing monitoring errors. In addition, the subway vehicle-mounted synchronous data acquisition device is easy to carry and install; simply placing the device box 1 and its contents inside the subway train is sufficient for operation, enabling synchronous monitoring and data collection of the subway train.

[0029] Furthermore, the device can be installed at different locations on the subway train to provide comprehensive monitoring of the entire train. Based on monitoring data obtained from microphones 3, gyroscopes 5, accelerometers 4, etc., and in conjunction with existing data processing algorithms, the device comprehensively processes the data to assess the overall condition of the subway train. This reduces errors caused by purely manual monitoring and calibration, and identifies abnormal data from the subway train, thereby locating the abnormal condition and accelerating repairs at the abnormal location. This improves repair efficiency, reduces maintenance costs, and enhances the economic benefits of the subway train. Moreover, the device does not cause physical interference or damage to the subway tracks and other infrastructure, protecting the integrity of the infrastructure and reducing interference with the normal operation of rail transit.

[0030] Reference Figure 2 In some embodiments, a first fixing member 11 is provided inside the device housing 1, and the first fixing member 11 is engaged and fixed to the controller 2. Further, the first fixing member 11 includes a first fixing block and a second fixing block connected to each other, and the included angle formed between the first fixing block and the second fixing block corresponds to the controller 2. That is, the controller 2 is fixed by engaging and fixing at the four corners of the controller 2 through the included angle formed between the first fixing block and the second fixing block. Specifically, there can be two first fixing members 11, corresponding to the upper left and lower right corners of the controller 2, or corresponding to the lower left and upper right corners of the controller 2; or there can be four first fixing members 11, corresponding to the upper left, lower left, upper right, and lower right corners of the controller 2.

[0031] Furthermore, the subway vehicle-mounted synchronous data acquisition device may also include fixing screws, and the controller 2 is provided with a positioning block 21, which is provided with a through hole corresponding to the fixing screw. The controller 2 is positioned and fixed by the connection of the fixing screw and the through hole, thereby improving the connection stability between the controller 2 and the device box 1.

[0032] In some embodiments, a fixing base 31 is provided on the device housing 1, and the microphone 3 is located on the fixing base 31, thereby fixing the position of the microphone 3. Further, a second fixing member 12 is provided on the device housing 1, which engages with the fixing base 31; a fourth fixing member 14 is provided on the device housing 1, which engages with the gyroscope 5. There can be multiple second fixing members 12 and fourth fixing members 14. The second fixing member 12 improves the connection stability between the microphone 3 and the device housing 1, and the fourth fixing member 14 improves the connection stability between the gyroscope 5 and the device housing 1.

[0033] In some embodiments, the device housing 1 is provided with a fixing rod 16, and the accelerometer 4 is provided with a through hole corresponding to the fixing rod 16. That is, the fixing rod 16 can directly pass through the through hole on the accelerometer 4, thereby fixing the accelerometer 4 to the device housing 1, thus improving the connection stability between the accelerometer 4 and the device housing 1. Furthermore, the device housing 1 is provided with a third fixing member 13, which fixes the position of the accelerometer 4. There can be several third fixing members 13, which cooperate with the fixing rod 16 to completely lock and fix the accelerometer 4.

[0034] Specifically, by using the aforementioned fixing components, including the first fixing member 11, the second fixing member 12, the third fixing member 13, the fourth fixing member 14, and the fixing rod 16, the microphone 3, the gyroscope 5, the accelerometer 4, and the controller 2 can be stably mounted on the device box 1, preventing monitoring errors caused by the shaking of the microphone 3, the gyroscope 5, the accelerometer 4, and the controller 2, thus improving the overall stability of the device. At the same time, the mechanical connection of the fixing components allows for easy installation and replacement of the microphone 3, the gyroscope 5, the accelerometer 4, and the controller 2, making the overall structure of the device simple, lightweight, and easy to carry.

[0035] In some embodiments, the subway vehicle-mounted synchronous data acquisition device further includes a cover 6, which is connected to the device box 1 to form a hollow, sealed space. The microphone 3, gyroscope 5, accelerometer 4, and controller 2 are all located in the sealed space, which can prevent external objects from contacting or colliding with the microphone 3, gyroscope 5, accelerometer 4, and controller 2, thereby preventing monitoring errors. It can also protect the microphone 3, gyroscope 5, accelerometer 4, and controller 2 from external damage.

[0036] Meanwhile, a partition can be provided between the microphone 3, gyroscope 5, accelerometer 4 and controller 2 to separate them. The partition is provided only with through holes corresponding to the first power line 22, the second power line 23 and the third power line 24. The partition can be combined with the fixing component to spatially isolate the microphone 3, gyroscope 5, accelerometer 4 and controller 2, preventing them from colliding with each other. At the same time, it prevents the magnetic fields of the microphone 3, gyroscope 5, accelerometer 4 and controller 2 from affecting each other during operation, thereby reducing the monitoring accuracy.

[0037] Furthermore, the device box 1 is provided with a fitting protrusion 17, and the box cover 6 is provided with a fitting groove 61 corresponding to the fitting protrusion 17. The fitting connection between the fitting protrusion 17 and the fitting groove 61 can improve the connection stability between the device box 1 and the box cover 6.

[0038] In some embodiments, the device box 1 is provided with an openable and closable connecting clip 15, which is connected to the subway train. That is, by adjusting the clamping angle of the openable and closable connecting clip 15, it can be connected to a fixed rod 16 or similar device inside the subway train car, thereby fixing the device box 1 inside the subway train car for convenient monitoring of the subway train.

[0039] In addition, the device box 1 or the box cover 6 is provided with a handle, which can be easily picked up and transferred by directly using the handle, thus improving the convenience of the device.

[0040] In summary, this application provides a subway vehicle-mounted synchronous data acquisition device, including a device box and a controller, microphone, gyroscope, and accelerometer placed on the device box. The microphone, gyroscope, and accelerometer are all connected to the controller, which can power the microphone, gyroscope, and accelerometer through its built-in power supply. The device also aggregates and stores subway train information collected by the microphone, gyroscope, and accelerometer via a built-in memory card. Furthermore, the microphone, gyroscope, and accelerometer are all portable monitoring instruments, capable of collecting corresponding sound, angular velocity, and acceleration information without the need for a satellite signal positioning system, thus reducing monitoring errors. In addition, the subway vehicle-mounted synchronous data acquisition device is easy to carry and install; simply placing the device box and its contents inside the subway train is sufficient for operation, enabling synchronous monitoring and data collection of the subway train.

[0041] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing examples, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions in the examples of this application.

Claims

1. A subway vehicle-mounted synchronous data acquisition device, characterized in that, include: The device housing, and the microphone, gyroscope, accelerometer and controller all housed within the device housing; The microphone is used to collect sound information from subway trains; The gyroscope is used to collect the angular velocity information of the subway train; The accelerometer is used to collect acceleration information of the subway train; the microphone, gyroscope and accelerometer are all connected to the controller; The controller has a built-in power supply and a built-in memory card; the built-in power supply is used to power the controller, microphone, gyroscope and accelerometer, and the built-in memory card is used to store information from the microphone, gyroscope and accelerometer.

2. The subway vehicle-mounted synchronous data acquisition device according to claim 1, characterized in that, The device box is equipped with a first fixing component, which engages and fixes with the controller.

3. The subway vehicle-mounted synchronous data acquisition device according to claim 2, characterized in that, The first fixing member includes a first fixing block and a second fixing block that are connected to each other, and the included angle formed between the first fixing block and the second fixing block corresponds to the controller.

4. The subway vehicle-mounted synchronous data acquisition device according to claim 1, characterized in that, The subway vehicle-mounted synchronous data acquisition device also includes a fixing screw, and the controller is provided with a positioning block, which has a through hole corresponding to the fixing screw.

5. The subway vehicle-mounted synchronous data acquisition device according to claim 1, characterized in that, The device box is provided with a fixed base, and the microphone is located on the fixed base.

6. The subway vehicle-mounted synchronous data acquisition device according to claim 5, characterized in that, The device box is provided with a second fixing member, which is engaged with the fixing base. The device box is provided with a fourth fixing component, which is engaged with the gyroscope.

7. The subway vehicle-mounted synchronous data acquisition device according to claim 1, characterized in that, The device box is provided with a fixing rod, and the accelerometer is provided with a through hole corresponding to the fixing rod.

8. The subway vehicle-mounted synchronous data acquisition device according to claim 1, characterized in that, The subway vehicle-mounted synchronous data acquisition device also includes a cover, which is connected to the device box to form a hollow, sealed space. The microphone, gyroscope, accelerometer and controller are all located in the sealed space.

9. The subway vehicle-mounted synchronous data acquisition device according to claim 8, characterized in that, The device box is provided with a fitting protrusion, and the box cover is provided with a fitting groove corresponding to the fitting protrusion.

10. The subway vehicle-mounted synchronous data acquisition device according to claim 1, characterized in that, The device box is equipped with an openable and closable connecting clip, which is connected to the subway train.

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