A subway vehicle-to-ground wireless field strength testing device based on the 2.4GSM band

Abstract

This utility model relates to the field of urban rail technology and proposes a subway vehicle-to-ground wireless field strength testing device based on the 2.4GHz GSM band. It includes a base plate, a support plate rotatably connected to the center of the top of the base plate, a support frame fixedly connected to one side of the top of the support plate, a fixed plate slidably connected to one side of the support frame, a hydraulic rod fixedly connected to one side of the fixed plate, a movable frame fixedly connected to one end of the hydraulic rod, a connecting rod rotatably connected inside the movable frame, a stepper motor fixedly connected to one side of the movable frame, and a field strength tester fixedly connected to the bottom end of the connecting rod. In this utility model, the field strength tester can be moved up and down by controlling the lifting component to test the intensity of the field strength. Furthermore, the field strength tester can be rotated by the driving component, facilitating multi-directional position adjustment and enabling precise position adjustment.

Description

Technical Field

[0001] This utility model relates to the field of urban rail technology, specifically to a subway vehicle-to-ground wireless field strength testing device based on the 2.4GSM frequency band. Background Technology

[0002] 2.4G is a wireless technology, often shortened to 2.4G because its frequency band is between 2.400GHz and 2.4835GHz. It is one of the three major wireless technologies on the market (including Bluetooth, 27M, and 2.4G). Wireless technology uses electromagnetic waves emitted outwards from the transmitting point, creating varying field strengths depending on the distance from the transmitting point. By receiving these electromagnetic waves, the strength of the field at different locations can be tested.

[0003] Existing testing devices for wireless field strength between subway trains and the ground are not convenient to adjust their position according to requirements, making it inconvenient to make precise position adjustments near the subway tracks. Furthermore, the movement of the testing device can cause shaking, affecting the test data. Utility Model Content

[0004] This invention proposes a subway vehicle-to-ground wireless field strength testing device based on the 2.4GSM frequency band, which solves the problems of inconvenience in accurately adjusting the position of the test point and shaking during movement.

[0005] The technical solution of this utility model is as follows: A subway vehicle-to-ground wireless field strength testing device based on the 2.4GSM band includes a base plate, a support plate rotatably connected to the middle of the top of the base plate, a support frame fixedly connected to one side of the top of the support plate, a fixed plate slidably connected to one side of the support frame, a hydraulic rod fixedly connected to one side of the fixed plate, a movable frame fixedly connected to one end of the hydraulic rod, a connecting rod rotatably connected inside the movable frame, a stepper motor fixedly connected to one side of the movable frame, a field strength tester fixedly connected to the bottom end of the connecting rod, a driving component capable of driving the support plate to rotate provided in the middle of the top of the base plate, a lifting component capable of adjusting the field strength tester up and down provided inside the support frame, and support components capable of maintaining stability during rotation provided on both sides of the bottom of the support plate. A control panel is fixedly connected to the middle of one side of the top of the base plate. The field strength tester is electrically connected to the control panel. A push-pull handrail is fixedly connected to one side of the top of the base plate.

[0006] Preferably, the drive assembly includes a drive frame, which is fixedly connected to the middle of the top of the base plate. A worm gear is rotatably connected to the inner bottom wall of the drive frame, and a drive rod is fixedly connected to the top of the worm gear.

[0007] Preferably, a first motor is fixedly connected to one side of the drive frame, and one end of the output shaft of the first motor passes through the drive frame and is fixedly connected to a worm gear, the middle part of which is meshed with a worm wheel.

[0008] Preferably, the support assembly includes a stabilizing frame, which is fixedly connected to both sides of the bottom end of the support plate. A support spring is fixedly connected to the inner top wall of the stabilizing frame. A movable block is fixedly connected to the bottom end of the support spring. A ball groove is provided at the bottom end of the movable block, and a support ball is rotatably connected inside the ball groove.

[0009] Preferably, an annular frame is fixedly connected to the middle of the top of the base plate, and an annular groove is opened at the top of the annular frame, with the bottom of the supporting ball being rotatably connected inside the annular groove.

[0010] Preferably, the lifting assembly includes a threaded rod, which is rotatably connected inside the support frame. A second motor is fixedly connected to the top of the support frame. The bottom end of the output shaft of the second motor passes through the support frame and is fixedly connected to the threaded rod. A threaded sleeve is threadedly connected to the top of the threaded rod. A connecting block is fixedly connected to one side of the threaded sleeve. A sliding hole is provided on one side of the support frame. One end of the connecting block passes through the sliding hole and is fixedly connected to the fixing plate.

[0011] Preferably, each of the four corners of the bottom of the base plate is fixedly connected to a connecting plate, and each connecting plate is rotatably connected to a guide wheel.

[0012] The beneficial effects of this utility model are as follows: In this invention, the guide wheel allows the device to travel on the subway track, and the field strength tester can detect the wireless field strength between the subway car and the ground. The lifting component can move the field strength tester up and down to test the strength of the field strength, and the drive component can rotate the field strength tester to facilitate multi-directional position adjustment and precise position adjustment. In this invention, a stepper motor can drive the field strength tester to rotate up and down, making it convenient to test the field strength at different locations. Furthermore, through the function of the support component, the rotation stability can be maintained during the control of the rotation of the support plate, preventing the field strength tester from shaking and avoiding any impact on the test results. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the structure proposed in this utility model; Figure 2This is a schematic diagram of the drive component structure proposed in this utility model; Figure 3 This is a schematic diagram of the support component structure proposed in this utility model; Figure 4 This is a schematic diagram of the lifting component structure proposed in this utility model; In the diagram: 1. Base plate; 2. Push-pull handrail; 3. Support plate; 4. Control panel; 5. Annular groove; 6. Annular frame; 7. Drive assembly; 71. Drive frame; 72. Worm gear; 73. Drive rod; 74. First motor; 75. Worm; 8. Support assembly; 81. Stabilizer; 82. Support spring; 83. Movable block; 84. Ball groove; 85. Support ball; 9. Lifting assembly; 91. Threaded rod; 92. Second motor; 93. Threaded sleeve; 94. Sliding hole; 95. Connecting block; 10. Support frame; 11. Fixed plate; 12. Hydraulic rod; 13. Movable frame; 14. Stepper motor; 15. Connecting rod; 16. Field strength tester; 17. Connecting plate; 18. Guide wheel. Detailed Implementation

[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0016] Please see Figure 1 This utility model provides a technical solution for a subway vehicle-to-ground wireless field strength testing device based on the 2.4GHz GSM band: The device includes a base plate 1, a support plate 3 rotatably connected to the top of the base plate 1, a support frame 10 fixedly connected to one side of the top of the support plate 3, a fixed plate 11 slidably connected to one side of the support frame 10, and a hydraulic rod 12 fixedly connected to one side of the fixed plate 11. The extension and retraction of the hydraulic rod 12 can move the field strength tester 16, facilitating testing at distant locations. One end of the hydraulic rod 12 is fixedly connected to… A movable frame 13 is connected, and a connecting rod 15 is rotatably connected inside the movable frame 13. A stepper motor 14 is fixedly connected to one side of the movable frame 13. The stepper motor 14 can drive the field strength tester 16 to rotate, which facilitates the adjustment of the test orientation of the field strength tester 16. The field strength tester 16 is fixedly connected to the bottom end of the connecting rod 15. A drive component 7 that can drive the support plate 3 to rotate is set in the middle of the top of the base plate 1. A lifting component 9 that can adjust the field strength tester 16 up and down is set inside the support frame 10. Support components 8 that can maintain stability during rotation are set on both sides of the bottom end of the support plate 3. A control panel 4 is fixedly connected to the middle of one side of the top of the base plate 1. The field strength tester 16 is electrically connected to the control panel 4. A push-pull handrail 2 is fixedly connected to one side of the top of the base plate 1. A connecting plate 17 is fixedly connected to each of the four corners of the bottom of the base plate 1. A guide wheel 18 is rotatably connected to the bottom of each connecting plate 17.

[0017] Please see Figure 2 The drive assembly 7 includes a drive frame 71, which is fixedly connected to the middle of the top of the base plate 1. A worm gear 72 is rotatably connected to the inner bottom wall of the drive frame 71. A drive rod 73 is fixedly connected to the top of the worm gear 72. A first motor 74 is fixedly connected to one side of the drive frame 71. One end of the output shaft of the first motor 74 passes through the drive frame 71 and is fixedly connected to a worm 75. The middle of the worm 75 is meshed with the worm gear 72. By controlling the first motor 74 to drive the worm 75 to mesh with the worm gear 72, the drive rod 73 can drive the support plate 3 to rotate, which facilitates the adjustment of the position of the field strength tester 16.

[0018] Please see Figure 3 The support assembly 8 includes a stabilizing frame 81, which is fixedly connected to both sides of the bottom end of the support plate 3. A support spring 82 is fixedly connected to the inner top wall of the stabilizing frame 81. A movable block 83 is fixedly connected to the bottom end of the support spring 82. A ball groove 84 is opened at the bottom end of the movable block 83. A support ball 85 is rotatably connected inside the ball groove 84. An annular frame 6 is fixedly connected to the middle of the top end of the base plate 1. An annular groove 5 is opened at the top end of the annular frame 6. The bottom of the support ball 85 is rotatably connected inside the annular groove 5. By pushing the movable block 83 with the support spring 82, the support ball 85 can roll inside the annular groove 5, so that the support plate 3 remains stable during rotation and avoids shaking of the field strength tester 16.

[0019] Please see Figure 4 The lifting assembly 9 includes a threaded rod 91, which is rotatably connected inside the support frame 10. A second motor 92 is fixedly connected to the top of the support frame 10. The bottom end of the output shaft of the second motor 92 passes through the support frame 10 and is fixedly connected to the threaded rod 91. A threaded sleeve 93 is threadedly connected to the top of the threaded rod 91. A connecting block 95 is fixedly connected to one side of the threaded sleeve 93. A sliding hole 94 is opened on one side of the support frame 10. One end of the connecting block 95 passes through the sliding hole 94 and is fixedly connected to the fixing plate 11. The threaded rod 91 and the threaded sleeve 93 are driven by the second motor 92 to perform threaded transmission, which can easily drive the field strength tester 16 to move up and down, and facilitate precise adjustment of the position of the field strength tester 16.

[0020] The working principle and usage process of this utility model are as follows: The entire device is placed on the subway track, with the guide wheels 18 respectively locked onto the rails. The entire device is moved by pushing and pulling the handrail 2. The second motor 92 is controlled to rotate in the reverse direction, causing threaded transmission between the threaded rod 91 and the threaded sleeve 93, which in turn causes the fixing plate 11 to slide downwards, moving the field strength tester 16 towards the ground. The extension and retraction of the hydraulic rod 12 is controlled, moving the field strength tester 16 to the designated position for testing. When the position of the field strength tester 16 needs adjustment, the first motor 74 is controlled to drive the worm gear 75 to rotate. The worm gear 75 meshes with the worm wheel 72, driving the support plate 3 to rotate via the drive rod 73. This moves the field strength tester 16 to the designated position. During the rotation of the support plate 3, the support spring 82 pushes the movable block 83 downward, causing the support ball 85 to roll inside the annular groove 5. This provides stable support for the support plate 3 and prevents it from shaking during rotation. Simultaneously, the field strength tester 16 transmits the field strength information from various locations to the control panel 4, allowing users to easily observe the information.

[0021] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A subway vehicle-to-ground wireless field strength testing device based on the 2.4GHz GSM band, comprising a base plate (1), characterized in that, A support plate (3) is rotatably connected to the middle of the top of the base plate (1). A support frame (10) is fixedly connected to one side of the top of the support plate (3). A fixed plate (11) is slidably connected to one side of the support frame (10). A hydraulic rod (12) is fixedly connected to one side of the fixed plate (11). A movable frame (13) is fixedly connected to one end of the hydraulic rod (12). A connecting rod (15) is rotatably connected inside the movable frame (13). A stepper motor (14) is fixedly connected to one side of the movable frame (13). A field strength tester (16) is fixedly connected to the bottom end of the connecting rod (15). A drive assembly (7) capable of driving the support plate (3) to rotate is provided in the middle of the top of the base plate (1). A lifting assembly (9) capable of adjusting the field strength tester (16) up and down is provided inside the support frame (10). Support assemblies (8) capable of maintaining stability during rotation are provided on both sides of the bottom end of the support plate (3). A control panel (4) is fixedly connected to the middle of one side of the top of the base plate (1). The field strength tester (16) is electrically connected to the control panel (4). A push-pull handrail (2) is fixedly connected to one side of the top of the base plate (1).

2. The subway vehicle-to-ground wireless field strength testing device based on the 2.4GHz GSM band according to claim 1, characterized in that, The drive assembly (7) includes a drive frame (71), which is fixedly connected to the middle of the top of the base plate (1). A worm gear (72) is rotatably connected to the inner bottom wall of the drive frame (71), and a drive rod (73) is fixedly connected to the top of the worm gear (72).

3. The subway vehicle-to-ground wireless field strength testing device based on the 2.4GHz GSM band according to claim 2, characterized in that, A first motor (74) is fixedly connected to one side of the drive frame (71). One end of the output shaft of the first motor (74) passes through the drive frame (71) and is fixedly connected to a worm (75). The middle part of the worm (75) is meshed with a worm wheel (72).

4. The subway vehicle-to-ground wireless field strength testing device based on the 2.4GHz GSM band according to claim 1, characterized in that, The support assembly (8) includes a stabilizer (81), which is fixedly connected to both sides of the bottom end of the support plate (3). A support spring (82) is fixedly connected to the inner top wall of the stabilizer (81), and a movable block (83) is fixedly connected to the bottom end of the support spring (82). A ball groove (84) is provided at the bottom end of the movable block (83), and a support ball (85) is rotatably connected inside the ball groove (84).

5. A subway vehicle-to-ground wireless field strength testing device based on the 2.4GSM frequency band according to claim 4, characterized in that, A ring frame (6) is fixedly connected to the middle of the top of the base plate (1). A ring groove (5) is opened at the top of the ring frame (6). The bottom of the supporting ball (85) is rolled inside the ring groove (5).

6. The subway vehicle-to-ground wireless field strength testing device based on the 2.4GHz GSM band according to claim 1, characterized in that, The lifting assembly (9) includes a threaded rod (91), which is rotatably connected inside the support frame (10). A second motor (92) is fixedly connected to the top of the support frame (10). The bottom end of the output shaft of the second motor (92) passes through the support frame (10) and is fixedly connected to the threaded rod (91). A threaded sleeve (93) is threadedly connected to the top of the threaded rod (91). A connecting block (95) is fixedly connected to one side of the threaded sleeve (93). A sliding hole (94) is opened on one side of the support frame (10). One end of the connecting block (95) passes through the sliding hole (94) and is fixedly connected to the fixing plate (11).

7. A subway vehicle-to-ground wireless field strength testing device based on the 2.4GHz GSM band according to claim 1, characterized in that, The bottom of the base plate (1) is fixedly connected to the four corners of the bottom, and the bottom of the connecting plate (17) is rotatably connected to the guide wheel (18).

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