Collision alarm device and alarm system for height-limiting protective frame of railway crossing highway overpass and culvert

Abstract

The invention relates to the technical field of height limiting protection, and discloses an iron crossing highway overpass and culvert height limiting protection frame collision alarm device and system, the device comprises a side vertical rod, the bottom of the side vertical rod is fixedly connected with a base, the top of the side vertical rod is fixedly connected with a transverse top rod, and one side of the side vertical rod is fixedly connected with a side fixing frame; the motor drives the threaded rod to move, the position of the sliding sleeve on one side of the transverse ejector rod is rapidly and accurately adjusted, the position of the collision alarm module can be adjusted conveniently, an operator can debug different positions conveniently after installing the collision alarm module, the debugging efficiency is improved, the operator does not need to disassemble the collision alarm module repeatedly, and the labor intensity of the operator is reduced. The operation state of equipment is monitored in real time through an external network, the front collision alarm module, the video acquisition module and the superelevation early warning module can be remotely set so as to realize remote system maintenance, meanwhile, the system can perform regular self-inspection uploading and also can perform timely manual detection, and the portability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of height-limit protection, and in particular relates to a collision alarm device and an alarm system for a height-limit protection frame of a railway-span public overpass culvert. Background Art

[0002] At present, the phenomenon of over-height and over-limit vehicles is extremely common in my country's road transportation, and the direct economic losses caused by over-limit vehicles are very serious. The height limit protection frame of the railway overpass public interchange is an important safety facility erected on both sides of the railway bridge culvert. It is mainly used to prevent over-height vehicles from colliding with the bridge and ensure the safety of railway traffic. It is usually set on both sides of the railway bridge culvert to limit the height of the vehicle and prevent over-height vehicles from passing through. Once a collision accident occurs, the system will immediately activate the alarm mechanism and send an alarm to relevant personnel through sound, light, text messages, etc., so as to deal with it in time and prevent the accident from expanding.

[0003] In the prior art, the authorization publication number "CN115188170A" discloses "a height-limited protective frame collision alarm system"; it includes a camera, a solar panel, a lithium battery, a weak current box, a laser transmitter, a laser receiver, a new anti-interference tube, a signal transmission cable, a 4G SIM card, etc. The laser transmitter and the laser receiver are installed at both ends of the new anti-interference tube, and the length matches the length of the height-limited protective frame, covering the entire lane. The solar panel provides power for the camera, the laser transmitter and the laser receiver to ensure the power supply of the system. The 4G SIM card provides traffic and network support for the transmission of camera data. When an over-height vehicle collides with the height-limited protective frame, the transmission of the signal in the new anti-interference tube is blocked, so that the laser receiver cannot receive the transmitted signal, and the switch quantity is transmitted to the camera. The camera generates an alarm signal and sends it to the display end to achieve the purpose of accident alarm and image capture. The present invention has a novel structural design, accurate and rapid event capture, and is safe and reliable.

[0004] The above-mentioned "a height-limited protective frame collision alarm system" still has some shortcomings, for example: the alarm contains a variety of electronic components, such as sensors, circuit boards, etc. When the collision alarm device is used in a long-term outdoor high-temperature environment, the high temperature will cause these components to have unstable performance, increase the failure rate, and cause the sensor sensitivity to decrease and the circuit board to short-circuit. At the same time, after installing the collision alarm device, it is often necessary to repeatedly adjust the position for testing to ensure that it can work normally in subsequent use. At the same time, when maintenance is required, the position of the collision alarm device also needs to be adjusted, and the position of the collision device is difficult to adjust, and it needs to be manually disassembled, installed and adjusted. The adjustment process is relatively cumbersome, and the existing height-limited protective frame has a relatively single function, and it is difficult to remind the driver before a collision.

[0005] For this reason, a collision alarm device and an alarm system for a height-limited protective frame of a railway-span public interchange culvert are proposed to solve the above-mentioned problems. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a collision alarm device and an alarm system for a height limit protection frame of a railway-span public overpass culvert, which effectively solves the problem that high temperature will cause the performance of these components to be unstable and increase the failure rate, and at the same time the position of the collision equipment is difficult to adjust, requiring manual disassembly, installation and adjustment, and the adjustment process is relatively cumbersome.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a collision alarm device and an alarm system for a height-limited protective frame of a railway-span public overpass culvert, comprising a side upright pole, a base is fixedly connected to the bottom of the side upright pole, a cross-rod is fixedly connected to the top of the side upright pole, a No. 1 upright pole is arranged on the outer side of the side upright pole, a No. 2 upright pole is arranged on one side of the No. 1 upright pole, a side fixing frame is fixedly connected to one side of the No. 2 upright pole, a side fixing frame is fixedly connected to a side fixing plate on one side, a connecting spring is fixedly connected to the top of the side fixing plate, a supporting base is fixedly connected to the top of the supporting base, an ultra-high warning module is fixedly connected to the top of the ultra-high warning module, a spirit level is fixedly connected to the top of the No. 1 upright pole, and a video acquisition module is fixedly connected to one side of the No. 1 upright pole.

[0008] Preferably, an outer support plate is fixedly connected to one side of the first vertical pole, and an audible and visual alarm module is fixedly connected to the top of the outer support plate.

[0009] Preferably, the bottom of the side fixing plate is fixedly connected to a bottom sleeve square frame, the inner side of the bottom sleeve square frame is slidably connected to a sliding square frame, one side of the bottom sleeve square frame is provided with an external threaded hole, the inner side of the external threaded hole is threadedly connected to a side threaded rod.

[0010] Preferably, a sliding sleeve is movably sleeved on the surface of the transverse top rod, the top of the sliding sleeve is slidably connected to a top sliding seat, the top of the top sliding seat is fixedly connected to a collision alarm module, one side of the collision alarm module is fixedly connected to a switch button, the other side of the collision alarm module is fixedly connected to an antenna module, and the top of the collision alarm module is fixedly connected to a solar panel.

[0011] Preferably, one side of the side upright is fixedly connected to a top connecting frame, one side of the top connecting frame is fixedly connected to a motor body, the output shaft of the motor body is fixedly connected to a top threaded rod, one side of the sliding sleeve is fixedly connected to a side transmission block, and an internal threaded hole is provided on the surface of the side transmission block.

[0012] Preferably, one end of the top threaded rod is movably connected to a No. 1 bearing disk, one side of the No. 1 bearing disk is movably connected to a side limit plate, and one side of the side limit plate is fixedly connected to the top of the side upright rod.

[0013] Preferably, a side limit frame is fixedly connected to one side of the top sliding seat, a side threaded hole is opened on one side of the side limit frame, and an adjusting bolt is threadedly connected to the inner side of the side threaded hole.

[0014] Preferably, one side of the side transmission block is movably connected with a bearing ring, one side of the bearing ring is movably connected with a side transmission bevel gear plate, the inner side of the side transmission bevel gear plate is provided with an internal threaded surface, the top of the side transmission bevel gear plate is meshingly connected with a top bevel gear plate, the top of the top bevel gear plate is fixedly connected with a top transmission plate, the top of the top transmission plate is fixedly connected with a top transmission rod, the top of the top transmission rod is fixedly connected with a top oblique transmission plate, one side of the top oblique transmission plate is meshingly connected with the side oblique transmission plate, one side of the side oblique transmission plate is fixedly connected with a top movable rod, the surface of the top movable rod is movably sleeved with a side movable plate, one side of the top movable rod is fixedly connected with a side movable plate, one side of the side movable plate is fixedly connected with a cleaning brush, and one side of the top sliding seat is fixedly connected with a heat sink.

[0015] Preferably, the bottom of the top transmission plate is movably connected to a No. 2 bearing plate, and the bottom of the No. 2 bearing plate is movably connected to the top of the side transmission block.

[0016] A collision alarm system for a height-limited protective frame of a railway-spanning public interchange culvert comprises an overheight warning module, a video acquisition module, an acoustic and light alarm module and a collision alarm module, wherein the overheight warning module is used to detect the height of a passing vehicle, the overheight warning module comprises a laser overheight radar unit, an intelligent chip unit, a wireless transmission control information processing unit and a signal transmission unit, the laser overheight radar unit adopts a planar laser scanning radar for overheight detection, the intelligent chip unit is used to analyze data, the video acquisition module is used to capture and record a monitoring area, the collision alarm module and the overheight warning module both comprise a wireless transmission control information processing unit, the wireless transmission information control processing unit is used to receive and process wireless information, and send the information, the acoustic and light alarm module comprises a sound alarm unit and a light alarm unit, which are used to send acoustic and light alarm information, the collision alarm module comprises a wireless transmission control information processing unit, an automatic sleep control unit and a high-sensitivity vibration detection unit, the high-sensitivity vibration detection unit is used to detect whether a cross-rod has collided, and the automatic sleep control unit is used to keep the collision alarm module in a low power consumption state during daily use.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1) By driving the threaded rod to move through the motor, the position of the sliding sleeve on one side of the horizontal push rod can be quickly and accurately adjusted, and the position of the collision alarm module can be adjusted in a portable manner, which is convenient for operators to perform debugging work at different positions after installing the collision alarm module, thereby improving the efficiency of the debugging work and eliminating the need for operators to repeatedly disassemble the module;

[0019] 2) The collision alarm module will dissipate heat through the heat sink. At the same time, the rotating top movable rod will drive the cleaning brush on one side of the side movable plate to rotate synchronously. The rotating cleaning brush will clean the dust on the surface of the heat sink, which can improve the heat dissipation efficiency of the heat sink.

[0020] 3) The laser ultra-high radar unit in the ultra-high warning module adopts a planar laser scanning radar. It is a single-point scanning radar designed based on the TOF principle. It can output 14.4K~28.8K point cloud data per second, and can meet the on-site ranging requirements of more than 40 meters; at the same time, it adopts 905nm infrared laser, combined with self-developed signal processing algorithms, to meet the needs of various application scenarios. The ultra-high warning module detects when an ultra-high vehicle is detected on the road, and transmits the signal to the sound and light alarm module through the signal transmission unit. The sound and light alarm module includes a sound alarm unit and a light alarm unit. After the sound and light alarm module is started, the sound alarm unit will issue an alarm sound of "Your vehicle is overheight, please leave immediately", and the light alarm unit will continue to flash to remind the driver, which can give the driver an early warning and reduce the occurrence of height limit collision accidents;

[0021] 4) After the collision occurs, the highly sensitive vibration detection unit in the collision alarm module detects the vibration of the crossbar, sends out an alarm signal through the wireless transmission control information processing unit, and starts the video acquisition module to capture and record, capturing 5 alarm pictures and alarm videos 30 seconds before the collision and 1 minute after the collision, and uploads the alarm information to the railway bridge monitoring information management system. At the same time, the video acquisition module keeps recording the scene. When an accident occurs, the staff can retrieve the locally stored video information for playback and accountability, which improves the efficiency of accident handling;

[0022] 5) Fault self-checking units are provided in the solar panel, video acquisition module, collision alarm module and over-altitude warning module. The fault self-checking unit in the solar panel can monitor the power of the solar cell in real time, the fault self-checking unit in the video acquisition module can detect the communication fault of the snapshot camera, the fault self-checking unit in the collision alarm module can detect the fault of the collision alarm module, and the fault self-checking unit in the over-altitude warning module can detect the fault of the lidar detection unit, etc. The fault information is pushed to the platform, and the staff handles the fault point in time. When the 4G link fails, the wireless transmission control information processing unit can automatically store the alarm information, status self-checking information, alarm photos, and vehicle, license plate and other information for later tracing. At the same time, the operating status of the equipment is monitored in real time through the external network, and the front collision alarm module, video acquisition module and over-altitude warning module can be remotely set to realize remote system maintenance. At the same time, the system can perform regular self-check uploads and timely manual inspections, which improves portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the super-high warning module of the present invention;

[0026] Figure 3 It is a schematic diagram of the sliding square frame structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the top threaded rod structure of the present invention;

[0028] Figure 5 It is a schematic diagram of the sliding sleeve structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the top transmission rod structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the sliding sleeve structure of the present invention;

[0031] Figure 8 It is a schematic diagram of the topology of the collision warning system of the present invention;

[0032] Fig. 9 It is a schematic diagram of the topology of the super-high warning system of the present invention.

[0033] In the figure: 1, side upright; 2, base; 3, horizontal top rod; 401, side fixing frame; 402, side fixing plate; 403, bottom sleeve square frame; 404, external threaded hole; 405, side threaded rod; 406, sliding square frame; 407, support base; 408, connecting spring; 409, ultra-high warning module; 4010, level; 4011, video acquisition module; 4012, external support plate; 4013, sound and light alarm module; 4014, No. 1 upright; 4015, No. 2 upright; 501, top connecting frame; 502, motor body; 503, top threaded rod; 504, No. 1 bearing plate; 505, side limit plate; 506, sliding Casing; 507, side transmission block; 508, internal threaded hole; 601, top sliding seat; 602, collision alarm module; 603, solar panel; 604, antenna module; 605, switch button; 606, side limit frame; 607, side threaded hole; 608, adjusting bolt; 701, bearing ring; 702, side transmission bevel gear plate; 703, internal threaded surface; 704, top transmission plate; 705, top bevel gear plate; 706, No. 2 bearing plate; 707, top transmission rod; 708, top bevel transmission plate; 709, side bevel transmission plate; 7010, top movable rod; 7011, side movable plate; 7012, cleaning brush; 7013, heat sink. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] In this embodiment, Figure 1-Figure 9 Given, the present invention provides the following technical solutions:

[0037] A collision alarm device for a height-limited protective frame of a railway-span public overpass culvert comprises a side upright 1, the bottom of the side upright 1 is fixedly connected to a base 2, the top of the side upright 1 is fixedly connected to a cross top rod 3, a No. 1 upright 4014 is arranged on the outside of the side upright 1, a No. 2 upright 4015 is arranged on one side of the No. 1 upright 4014, a side fixing frame 401 is fixedly connected to one side of the No. 2 upright 4015, a side fixing frame 401 is fixedly connected to one side of the side fixing frame 401, a side fixing plate 402 is fixedly connected to the top of the side fixing plate 402, a connecting spring 408 is fixedly connected to the top of the connecting spring 408, a supporting base 407 is fixedly connected to the top of the supporting base 407, a level 4010 is fixedly connected to the top of the super-high warning module 409, and a video acquisition module 4011 is fixedly connected to one side of the No. 1 upright 4014.

[0038] It should be noted that the alarm signal is sent out through the wireless transmission control information processing unit, and the video acquisition module 4011 is started to capture and record, capturing 5 alarm pictures and alarm videos 30 seconds before the collision and 1 minute after the collision, and uploading the alarm information to the railway bridge monitoring information management system. At the same time, the video acquisition module 4011 keeps recording the scene, and when an accident occurs, the staff can retrieve the locally stored video information for playback and accountability.

[0039] In this embodiment, an outer support plate 4012 is fixedly connected to one side of the first vertical pole 4014 , and an audible and visual alarm module 4013 is fixedly connected to the top of the outer support plate 4012 .

[0040] It should be noted that, through the super-high warning module 409, when a super-high vehicle is detected on the road, the signal is transmitted to the sound and light alarm module 4013 through the signal transmission unit. The sound and light alarm module 4013 includes a sound alarm unit and a light alarm unit. After the sound and light alarm module 4013 is started, the sound alarm unit will issue an alarm sound of "Your vehicle is super-high, please leave immediately", and the light alarm unit will continue to flash to remind the driver. When the super-high warning module 409 detects an super-high vehicle, the sound and light alarm module 4013 is wirelessly transmitted to the information processing module via LORA, and the sound and light alarm unit is started to issue a sound and light alarm prompt. The voice information can be customized by the user.

[0041] In this embodiment, the bottom of the side fixing plate 402 is fixedly connected to a bottom sleeve square frame 403, the inner side of the bottom sleeve square frame 403 is slidably connected to a sliding square frame 406, one side of the bottom sleeve square frame 403 is provided with an external threaded hole 404, the inner side of the external threaded hole 404 is threadedly connected to a side threaded rod 405.

[0042] It should be noted that, by rotating the side threaded rod 405, the side threaded rod 405 is rotated along the inner thread of the external threaded hole 404 and taken out. After the side threaded rod 405 is taken out along the external threaded hole 404, by pushing the sliding square frame 406 to slide vertically along the inner side of the bottom sleeve square frame 403, the ultra-high warning module 409 on the top of the sliding square frame 406 can be driven to perform synchronous height adjustment.

[0043] In this embodiment, a sliding sleeve 506 is movably sleeved on the surface of the transverse top rod 3, the top of the sliding sleeve 506 is slidably connected to a top sliding seat 601, the top of the top sliding seat 601 is fixedly connected to a collision alarm module 602, one side of the collision alarm module 602 is fixedly connected to a switch button 605, the other side of the collision alarm module 602 is fixedly connected to an antenna module 604, and the top of the collision alarm module 602 is fixedly connected to a solar panel 603.

[0044] It should be noted that the collision alarm module 602 is continuously powered by the solar panel 603, which includes a monocrystalline solar panel, an intelligent charge and discharge controller and a colloidal battery pack. The monocrystalline solar panel converts solar energy into electrical energy, and the colloidal battery pack is charged by the intelligent charge and discharge controller. After the battery is fully charged, the intelligent charge and discharge controller enters the intelligent distribution mode, and supplies power to the collision alarm module 602 while avoiding overcharging of the colloidal battery pack, and at the same time ensures that the collision alarm module 602 can work normally under insufficient light. The power supply mode can adopt solar energy and 220V AC power supply, which can adapt to the power supply requirements of different scenarios; solar power supply can solve the problem of difficulty in obtaining power at the detection location, and the intelligent charge and discharge controller and the battery are built in the on-site control cabinet, which is very convenient to manage and maintain; different power solar panels 603 and different capacity batteries can be configured according to different power supply requirements.

[0045] In this embodiment, one side of the side upright 1 is fixedly connected to a top connecting frame 501, one side of the top connecting frame 501 is fixedly connected to a motor body 502, the output shaft of the motor body 502 is fixedly connected to a top threaded rod 503, one side of the sliding sleeve 506 is fixedly connected to a side transmission block 507, and an internal threaded hole 508 is provided on the surface of the side transmission block 507.

[0046] It should be noted that after starting the motor body 502, the top threaded rod 503 can be driven to rotate by the motor body 502. Through the meshing connection between the top threaded rod 503 and the internal threaded hole 508, the side transmission block 507 can be driven to move horizontally when the top threaded rod 503 rotates.

[0047] In this embodiment, one end of the top threaded rod 503 is movably connected to a bearing disk 504, one side of the bearing disk 504 is movably connected to a side limit plate 505, and one side of the side limit plate 505 is fixedly connected to the top of the side upright 1.

[0048] It should be noted that during the rotation of the top threaded rod 503, it will be movably connected and supported on one side of the side limit plate 505 through the No. 1 bearing disk 504. The side limit plate 505 can stably support the top threaded rod 503 on one side of the No. 1 bearing disk 504, thereby maintaining the stability of the rotation of the top threaded rod 503.

[0049] In this embodiment, a side limit frame 606 is fixedly connected to one side of the top sliding seat 601 , a side threaded hole 607 is opened on one side of the side limit frame 606 , and an adjusting bolt 608 is threadedly connected to the inner side of the side threaded hole 607 .

[0050] It should be noted that, by rotating the adjusting bolt 608 along the side threaded hole 607, and continuing to rotate until one end of the adjusting bolt 608 contacts the surface of the sliding sleeve 506, the side limit frame 606 and the top sliding seat 601 can be limited at this time, so that the angle of the collision alarm module 602 at the top of the sliding sleeve 506 can be adjusted.

[0051] In this embodiment, one side of the side transmission block 507 is movably connected to a bearing ring 701, one side of the bearing ring 701 is movably connected to a side transmission bevel gear plate 702, the inner side of the side transmission bevel gear plate 702 is provided with an internal thread surface 703, the top of the side transmission bevel gear plate 702 is meshedly connected to a top bevel gear plate 705, the top of the top bevel gear plate 705 is fixedly connected to a top transmission plate 704, the top of the top transmission plate 704 is fixedly connected to a top transmission rod 707, and the top of the top transmission rod 707 is fixedly connected to the top of the transmission plate 704. A top inclined transmission disk 708 is connected, one side of the top inclined transmission disk 708 is meshedly connected with a side inclined transmission disk 709, one side of the side inclined transmission disk 709 is fixedly connected with a top movable rod 7010, the surface of the top movable rod 7010 is movably sleeved with a side movable plate 7011, one side of the top movable rod 7010 is fixedly connected with the side movable plate 7011, one side of the side movable plate 7011 is fixedly connected with a cleaning brush 7012, and one side of the top sliding seat 601 is fixedly connected with a heat sink 7013.

[0052] It should be noted that the rotating side inclined transmission plate 709 will drive the top movable rod 7010 to rotate along the top of the side movable plate 7011, and the rotating top movable rod 7010 will be movably supported by the side movable plate 7011. The rotating top movable rod 7010 will drive the cleaning brush 7012 on one side of the side movable plate 7011 to rotate, and the rotating cleaning brush 7012 will clean the dust on the surface of the heat sink 7013, thereby improving the heat dissipation efficiency of the heat sink 7013.

[0053] In this embodiment, the bottom of the top transmission plate 704 is movably connected to the second bearing plate 706 , and the bottom of the second bearing plate 706 is movably connected to the top of the side transmission block 507 .

[0054] It should be noted that the rotating top transmission disk 704 will be movably supported on the top of the side transmission block 507 through the No. 2 bearing disk 706, and will synchronously drive the top transmission rod 707 to rotate, and the rotating top transmission rod 707 will drive the top inclined transmission disk 708 to rotate.

[0055] Specifically, a collision alarm system for a height-limited guard frame of a railway-span public interchange culvert includes an overheight warning module 409, a video acquisition module 4011, an audible and visual alarm module 4013, and a collision alarm module 602. The overheight warning module 409 is used to detect the height of a passing vehicle. The overheight warning module 409 includes a laser overheight radar unit, an intelligent chip unit, a wireless transmission control information processing unit, and a signal transmission unit. The laser overheight radar unit uses a planar laser scanning radar for overheight detection. The intelligent chip unit is used to analyze data. The video acquisition module 4011 is used to capture and record monitoring areas. The collision alarm module 602 02 and the ultra-high warning module 409 both include a wireless transmission control information processing unit, the wireless transmission information control processing unit is used to receive and process wireless information and send the information, the sound and light alarm module 4013 includes a sound alarm unit and a light alarm unit, which are used to send out sound and light alarm information, the collision alarm module 602 includes a wireless transmission control information processing unit, an automatic sleep control unit and a high-sensitivity vibration detection unit, the high-sensitivity vibration detection unit is used to detect whether the cross-rod 3 has a collision, and the automatic sleep control unit is used to keep the collision alarm module 602 in a low power consumption state during daily use.

[0056] It should be noted that the super-high warning module 409 adopts centimeter-level detection accuracy, with a measurement frequency of up to 2KHz, and can detect vehicles with a speed of 120KH, and can easily detect super-high vehicles passing through culverts; in addition, the laser radar detector is equipped with a red indicator laser, which can "shoot wherever it is pointed", making installation and debugging extremely convenient;

[0057] The collision alarm module 602 uses a high-sensitivity vibration detector to detect vehicle collisions with height-limited overhead cranes, with a wide range of detection accuracy;

[0058] The automatic sleep control unit can control the collision alarm module 602 to be in a low power consumption state when it is not vibrated. At this time, if the collision alarm module 602 is vibrated by a collision, it will start up quickly.

[0059] The system has fault self-checking functions: real-time monitoring of solar cell power, snap camera communication fault detection, collision alarm module 602 fault detection, laser radar detection unit fault detection, etc. The fault information is pushed to the platform, and the staff will handle the fault point in time.

[0060] When the 4G link fails, the information processing module can automatically store alarm information, status self-check information, alarm photos, and vehicle and license plate information for later tracing;

[0061] The operation status of the equipment can be monitored in real time through the network, and the front over-height warning module 409, the video acquisition module 4011, and the collision alarm module 602 can be remotely set to achieve remote system maintenance. At the same time, the system can perform scheduled self-test uploads and timely manual inspections;

[0062] The on-site ultra-high warning module 409, the collision alarm module 602, and the video acquisition module 4011 all support wireless communication and solar power supply, and are easy to install and deploy.

[0063] Specifically, the collision alarm system of the overpass mainly adopts a laser ultra-high radar to monitor the over-high vehicle and give an audible and visual alarm. After the collision, it is monitored by the collision alarm module 602 and transmitted to the on-site processing unit by wireless. After processing, the on-site photos, videos, vehicle license plates and other information are transmitted to the railway bridge monitoring information management system through the 4G network. The collision alarm system of the overpass culvert and the height-limited protective frame adopts a three-level network architecture, which is mainly composed of three parts: front-end monitoring equipment, transmission channel and monitoring center. The front-end equipment is mainly composed of a laser ultra-high radar, an audible and visual alarm unit, a collision alarm module 602, a video acquisition module 4011, an information processing module, a pole and a solar power supply system. The over-high warning module 409 has a built-in algorithm to detect the model of the over-high vehicle. When an over-high vehicle is detected, the audible and visual alarm unit can be linked to give an audible and visual alarm, prompting "Your vehicle is over-high, please leave immediately". When the driver of the over-high vehicle does not see the height limit prompt and fails to take correct disposal measures in time, the vehicle continues to move forward and collides with the height limit frame. At this time, the wireless transmission control information processing module sends out an alarm signal, and starts the video acquisition module 4011 to capture and record, capturing 5 alarm pictures and alarm videos 30 seconds before the collision and 1 minute after the collision, and uploading the alarm information to the railway bridge monitoring information management system. At the same time, the video acquisition module 4011 keeps recording the scene. When an accident occurs, the staff can retrieve the locally stored video information for playback and accountability.

[0064] When the driver of the over-height vehicle does not see the height limit prompt and fails to take correct measures in time, the vehicle continues to move forward and collides with the height limit frame. At this time, the collision alarm module 602 detects the vibration of the height limit frame, sends an alarm signal through the wireless transmission control information processing module, and starts the video acquisition module 4011 to capture and record, capture 5 alarm pictures and alarm videos 30 seconds before the collision and 1 minute after the collision, and upload the alarm information to the railway bridge monitoring information management system. At the same time, the video acquisition module 4011 keeps recording the scene. When an accident occurs, the staff can retrieve the locally stored video information for playback and accountability;

[0065] When there is an unlimited height limit on the overpass but there is a height limit reminder, if the driver of the over-height vehicle does not see the height limit reminder and fails to take correct measures in time, causing the vehicle to continue to move forward, then when the over-height warning module 409 detects the over-height vehicle, it sends an alarm signal through the wireless transmission control information processing module, and starts the video acquisition module 4011 to capture and record, capturing 5 alarm pictures and alarm videos 30 seconds before the collision and 1 minute after the collision, and uploads the alarm information to the railway bridge monitoring information management system. At the same time, the video acquisition module 4011 keeps recording the scene. When an accident occurs, the staff can retrieve the locally stored video information for playback and accountability

[0066] In the collision alarm module 602, after the over-height vehicle is warned, the driver fails to take correct measures in time, causing the vehicle to continue moving forward and collide with the height limit frame. At this time, the collision alarm module 602 detects the vibration of the height limit frame, immediately sends an alarm signal to the information processing module through LORA transmission, and starts the video acquisition module 4011 to capture and record;

[0067] The present invention adopts LORA wireless transmission, eliminating the trouble of wiring. The module integrates a high-precision vibration detection module, adopts a high-performance microprocessor and advanced dynamics solution and Kalman dynamic filtering algorithm, and can accurately output the current attitude of the module in a dynamic environment. The attitude measurement accuracy is static 0.2°, the stability is extremely high, and the performance is even better than some professional inclinometers. It adopts advanced digital filtering technology, which can effectively reduce measurement noise and improve measurement accuracy. The maximum data output rate is 200Hz. The output content can be selected arbitrarily, the output rate is 0.2~200Hz and can be adjusted. It has P67 protection, strong anti-external electromagnetic interference ability, stable performance, and can adapt to long-term work in harsh industrial environments. It comes with a lithium battery and can work continuously for more than 3 days even if the solar power supply system is damaged.

[0068] The ultra-high warning module 409 laser ultra-high radar detector adopts a planar laser scanning radar, a single-point scanning product designed based on the TOF principle, which can output 14.4K-28.8K point cloud data per second, and can meet customers' ranging needs greater than 40 meters; it uses 905nm infrared laser and cooperates with self-developed signal processing algorithms to meet the needs of various application scenarios; based on the pulse TOF ranging principle, and equipped with related optical, electronic, and algorithm designs, it realizes high-frequency and high-precision long-distance measurement. While measuring the distance, the mechanical structure rotates 360 degrees to continuously obtain angle position information, thereby realizing 360-degree scanning ranging and outputting point cloud data of the scanning environment.

[0069] By setting up an over-height warning area, over-height vehicles can be detected, and objects with a width of 0.1 at 25 meters can be accurately measured. When an over-height vehicle is measured, the sound and light alarm unit is activated to give a reminder. When the over-height vehicle is always in the defense zone, it can be detected and reminded.

[0070] Video acquisition module 4011: one set of video acquisition module 4011 is installed on each side of the culvert on site. When the front-end detects a collision with the height-limited protective frame, the module captures 5 alarm pictures and alarm videos of 30 seconds before and 1 minute after the collision and uploads them to the management platform via 4G. The video acquisition module 4011 has a built-in memory card to store the video of the scene for later tracing.

[0071] The video acquisition module 4011 adopts a 1 / 1.8-inch 4-megapixel CMOS smart high-definition camera with a resolution of up to 2688×1520 and a frame rate of up to 25 frames. It has a built-in warm light fill light and supports the output of H.265 or H.264 bitstreams. It has a high compression ratio and is very flexible in processing. The bitstream also supports MJPEG encoding. The captured images use JPEG encoding and SmartJPEG compression. The image quality can be set. It supports 3D digital noise reduction and motor vehicle capture. It has built-in license plate recognition, body color recognition, vehicle model recognition, and vehicle master and sub-brand recognition functions. It has dustproof, waterproof, and surge protection functions.

[0072] Example 2

[0073] This embodiment 2 provides a method for using a collision alarm device and an alarm system for a height-limited protective frame of a railway-span public interchange culvert, which is used to further illustrate the working process or principle of the collision alarm device and the alarm system for a height-limited protective frame of a railway-span public interchange culvert provided in the above embodiment 1, and specifically includes the following steps:

[0074] S1. First, the motor body 502 can be fixed to the top of the side upright pole 1 through the top connecting frame 501. At this time, after the motor body 502 is started, the top threaded rod 503 can be driven to rotate through the motor body 502. The top threaded rod 503 is engaged with the internal threaded hole 508, and the side transmission block 507 can be driven to move horizontally when the top threaded rod 503 rotates. During the rotation of the top threaded rod 503, it will be movably connected and supported on one side of the side limit plate 505 through the No. 1 bearing plate 504. The side limit plate 505 can be used to The top threaded rod 503 on one side of the No. 1 bearing plate 504 provides a stable support to maintain the rotation stability of the top threaded rod 503. By moving the horizontal position of the side transmission block 507 on one side of the horizontal top rod 3, the position of the sliding sleeve 506 can be adjusted in a portable manner. By adjusting the position of the sliding sleeve 506 on one side of the horizontal top rod 3, the position of the collision alarm module 602 can be adjusted in a portable manner, which is convenient for operators to perform debugging work at different positions after installing the collision alarm module 602, thereby improving the efficiency of the debugging work and eliminating the need for operators to repeatedly disassemble.

[0075] S2. When the collision alarm module 602 is in use, heat is dissipated through the heat sink 7013 on one side of the top sliding seat 601. The outer shells of the top sliding seat 601 and the collision alarm module 602 are both made of metal with good thermal conductivity. By using multiple heat sinks 7013 on one side of the top sliding seat 601, the heat dissipation area of ​​the top sliding seat 601 can be increased, and the heat dissipation effect of the top sliding seat 601 and the collision alarm module 602 can be improved. At the same time, one side of the top sliding seat 601 is movably connected to the surface of the sliding sleeve 506. At this time, by rotating the top sliding seat 601, the top sliding seat 601 can be slid along the surface of the sliding sleeve 506 and the position can be adjusted. After the position adjustment is completed, the adjusting bolt 608 can be rotated along the side threaded hole 607 and continuously rotated until one end of the adjusting bolt 608 contacts the surface of the sliding sleeve 506. At this time, the side can be adjusted. The limit frame 606 is limited with the top sliding seat 601, so that the angle adjustment of the collision alarm module 602 at the top of the sliding sleeve 506 can be completed. After completion, the collision alarm module 602 can be started by pressing the switch button 605, and the collision alarm module 602 is continuously powered by the solar panel 603. The solar panel 603 includes a single crystal solar panel, an intelligent charge and discharge controller and a colloidal battery pack. The solar energy is converted into electrical energy through the single crystal solar panel, and the colloidal battery pack is charged through the intelligent charge and discharge controller. After the battery is fully charged, the intelligent charge and discharge controller enters the intelligent distribution mode, and supplies power to the collision alarm module 602 while avoiding overcharging of the colloidal battery pack, and ensures that the collision alarm module 602 can work normally under insufficient light. At the same time, the antenna module 604 includes an antenna unit and a LORA transmission unit;

[0076] S3. At the same time, when the side transmission block 507 moves horizontally along the surface of the top threaded rod 503, the side transmission bevel gear plate 702 can be driven to move along the surface of the top threaded rod 503 through the active connection of the bearing ring 701. The threaded connection between the inner thread surface 703 of the side transmission bevel gear plate 702 and the top threaded rod 503 can synchronously drive the meshing connected top transmission plate 704 to rotate when the side transmission bevel gear plate 702 moves along the surface of the top threaded rod 503. One side of the side transmission bevel gear plate 702 is movably connected through the bearing ring 701, so that the side transmission bevel gear plate 702 can be kept rotating when it moves along the surface of the top threaded rod 503. The rotating top transmission plate 704 will be movably supported by the second bearing plate 706 The top of the side transmission block 507 is supported, and the top transmission rod 707 is synchronously driven to rotate. The rotating top transmission rod 707 drives the top oblique transmission disk 708 to rotate. The rotating top oblique transmission disk 708 synchronously drives the side oblique transmission disk 709 to engage and rotate. The rotating side oblique transmission disk 709 drives the top movable rod 7010 to rotate along the top of the side movable plate 7011. The rotating top movable rod 7010 is movably supported by the side movable plate 7011. The rotating top movable rod 7010 drives the cleaning brush 7012 on one side of the side movable plate 7011 to rotate. The rotating cleaning brush 7012 cleans the dust on the surface of the heat sink 7013, thereby improving the heat dissipation efficiency of the heat sink 7013.

[0077] S4. At the same time, the side fixing frame 401 can be used to fix and support the side fixing plate 402, and the support base 407 can be supported by multiple connecting springs 408 on the top of the side fixing plate 402. The support base 407 can be used to stably connect and support the ultra-high warning module 409. At the same time, if it is necessary to adjust the position of the ultra-high warning module 409, first, the side threaded rod 405 is rotated and the side threaded rod 405 is rotated along the inner thread of the external threaded hole 404 and taken out. After the side threaded rod 405 is taken out along the external threaded hole 404, the sliding square frame 406 is pushed to slide vertically along the inner side of the bottom sleeve square frame 403, so that the ultra-high warning module 409 can be brought The super-high warning module 409 on the top of the sliding square frame 406 is adjusted in height synchronously. By continuously pushing the sliding square frame 406 to move upward, the super-high warning module 409 can be lifted up, and the connecting spring 408 can be driven to produce tensile deformation. At this time, the side threaded rod 405 is rotated along the external threaded hole 404 to contact and limit the sliding square frame 406, so as to complete the adjustment of the height of the super-high warning module 409. At the same time, by observing the bubble on the surface of the level 4010, the bubble is adjusted to the center by adjusting the installation angle of the side fixing frame 401, and the horizontal state of the super-high warning module 409 is adjusted to keep the super-high warning module 409 horizontal.

[0078] S5. The super-high warning module 409 includes a laser super-high radar unit, an intelligent chip unit, a wireless transmission control information processing unit and a signal transmission unit. The super-high warning module 409 has a centimeter-level detection accuracy, a measurement frequency of up to 2KHz, and can detect vehicles with a speed of 120Km per hour. At the same time, the laser super-high radar unit provided in the super-high warning module 409 has a red indicator laser, which improves the portability during the debugging process. The intelligent chip unit has a built-in algorithm. The video acquisition module 4011 includes a video acquisition unit and a detection unit, which can be detected by the super-high warning module 409. When an over-high vehicle is detected on the road, the signal is transmitted to the sound and light alarm module 4013 through the signal transmission unit. The sound and light alarm module 4013 includes a sound alarm unit and a light alarm unit. After the sound and light alarm module 4013 is started, the sound alarm unit will issue an alarm sound of "your vehicle is over-high, please leave immediately", and the light alarm unit will continuously flash the light to remind the driver;

[0079] S6. The collision alarm module 602 includes a wireless transmission control information processing unit and a high-sensitivity vibration detection unit. When the driver of the super-high vehicle ignores the height limit prompt and fails to take correct disposal measures in time, the vehicle continues to move forward and collides with the crossbar 3. At this time, the high-sensitivity vibration detection unit in the collision alarm module 602 detects the vibration of the crossbar 3, sends an alarm signal through the wireless transmission control information processing unit, and starts the video acquisition module 4011 to capture and record, capture 5 alarm pictures and alarm videos 30 seconds before the collision and 1 minute after the collision, and upload the alarm information to the railway bridge monitoring information management system. At the same time, the video acquisition module 4011 keeps recording the scene. When an accident occurs, the staff can retrieve the locally stored video information for playback and accountability;

[0080] S7, the collision alarm module 602 and the super-altitude warning module 409 all include a wireless transmission control information processing unit. The front-end devices use LORA in the antenna module 604 for data transmission. The collision alarm module 602 and the super-altitude warning module 409 transmit the alarm information to the wireless transmission control information processing unit through LORA. The video acquisition module 4011 is connected to the wireless transmission control information processing unit through a bridge to achieve the transmission of pictures and videos. At the same time, the system uses the 4G network as the main communication link, and the operator can be freely selected. At the same time, the 4G router in the antenna module 604 also has the function of accessing the wired network, and the wired network can be directly used to access the router for communication;

[0081] S8. Fault self-checking units are provided in the solar panel 603, the video acquisition module 4011, the collision alarm module 602 and the super-altitude warning module 409. The fault self-checking unit in the solar panel 603 can monitor the power of the solar cell in real time, the fault self-checking unit in the video acquisition module 4011 can detect the communication fault of the snapshot camera, the fault self-checking unit in the collision alarm module 602 can detect the fault of the collision alarm module 602, and the fault self-checking unit in the super-altitude warning module 409 can detect the fault of the laser radar detection unit, etc. The fault information is pushed to the platform, and the staff handles the fault point in time. When the 4G link fails, the wireless transmission control information processing unit can automatically store the alarm information, the state self-checking information, the alarm photo and the vehicle, the license plate and other information so that it can be traced later. At the same time, the operating status of the equipment is monitored in real time through the external network. The front collision alarm module 602, the video acquisition module 4011 and the super-altitude warning module 409 can be remotely set to realize remote system maintenance. At the same time, the system can perform scheduled self-checking uploads, and can also perform manual inspections in a timely manner, thereby improving portability.

[0082] S9. The high-sensitivity vibration detection unit in the collision alarm module 602 adopts LORA wireless transmission, without complicated cables, and adopts a high-performance microprocessor and advanced dynamics solution and Kalman dynamic filtering algorithm. It can accurately output the current posture of the module in a dynamic environment. The static posture measurement accuracy is 0.2°, and the stability is high. At the same time, the high-sensitivity vibration detection unit adopts advanced digital filtering technology, which can effectively reduce measurement noise and improve measurement accuracy. The maximum data output rate is 200Hz, and the output content can be arbitrarily selected. The output rate is 0.2~200Hz and can be adjusted, which improves the accuracy of the output. At the same time, the high-sensitivity vibration detection unit has P67 level protection, strong anti-external electromagnetic interference ability, stable performance, and can adapt to long-term work in harsh industrial environments;

[0083] S10. The laser ultra-high radar unit in the ultra-high warning module 409 adopts a planar laser scanning radar, a single-point scanning radar designed based on the TOF principle, which can output 14.4K-28.8K point cloud data per second, and can meet the on-site ranging requirements of more than 40 meters; at the same time, it adopts 905nm infrared laser, combined with self-developed signal processing algorithms, to meet the needs of various application scenarios. At the same time, based on the pulse TOF ranging principle, and equipped with relevant optical, electronic, and algorithm designs, high-frequency and high-precision long-distance measurement is achieved, and by setting an ultra-high warning area, ultra-high vehicles can be detected, and objects with a width of 0.1 at 25 meters can be accurately measured. When an ultra-high vehicle is measured, the sound and light alarm module 4013 is started to remind. When the ultra-high vehicle has been in the defense zone, it can be continuously detected and reminded;

[0084] S11. The external management platform and the server management platform adopt B / S architecture and are accessed through the client. They are mainly responsible for collecting the alarm and operating status information of the on-site equipment under their jurisdiction, and storing this information in the database for query. Its main functions include collision alarm, over-height warning, accident evidence, equipment operation and maintenance, video inspection, user authority control, alarm management, status monitoring, etc.

[0085] The external management platform software can perform the following operations:

[0086] Police situation management:

[0087] The software supports displaying the collision alarm events of the height-limited highway in a list format according to the chronological order. The event list includes the license plate of the vehicle causing the accident, the alarm time, the alarm location, the license plate number and other information;

[0088] On the alarm details page, you can view the scene environment pictures, alarm video clips, and real-time video of the scene, which is convenient for users to intuitively judge the alarm situation;

[0089] The historical alarm event information can be queried through the alarm query page;

[0090] Alarm Management:

[0091] The software supports displaying the collision alarm events of the height-limited highway in a list format according to the chronological order. The event list includes the license plate of the vehicle causing the accident, the alarm time, the alarm location, the license plate number and other information;

[0092] On the alarm details page, you can view the scene environment pictures, alarm video clips, and real-time video of the scene, which is convenient for users to intuitively judge the alarm situation;

[0093] The historical alarm event information can be queried through the alarm query page;

[0094] Online inspection:

[0095] The system supports regular inspections of on-site equipment, abnormal solar power, on-site detectors, and camera offline alarms;

[0096] Remote Configuration:

[0097] For ordinary users, the system supports remote adjustment of the detector's alarm threshold and the camera's lens focal length;

[0098] Remote operation and maintenance:

[0099] For operation and maintenance personnel, the system supports configuration of image parameters of on-site equipment, and can remotely upgrade and restart on-site equipment.

[0100] It should be noted that the components not described in detail in the present invention are all prior art, and corresponding models can be selected according to actual needs. The internal structure and operating principle of the above parts are also common knowledge of those skilled in the art, and no further elaboration will be given on this.

[0101] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A collision alarm device for a height-limited protective frame of a railway-span public overpass culvert, comprising a side upright (1), characterized in that: The bottom of the side upright pole (1) is fixedly connected to a base (2), the top of the side upright pole (1) is fixedly connected to a horizontal top pole (3), a first upright pole (4014) is arranged on the outside of the side upright pole (1), a second upright pole (4015) is arranged on one side of the first upright pole (4014), a side fixing frame (401) is fixedly connected to one side of the second upright pole (4015), and a side fixing plate (401) is fixedly connected to one side of the side fixing frame (401). 02), the top of the side fixing plate (402) is fixedly connected with a connecting spring (408), the top of the connecting spring (408) is fixedly connected with a supporting base (407), the top of the supporting base (407) is fixedly connected with an ultra-high warning module (409), the top of the ultra-high warning module (409) is fixedly connected with a level (4010), and one side of the No. 1 vertical pole (4014) is fixedly connected with a video acquisition module (4011).

2. The collision alarm device for a height-limited protective frame of a railway-span public overpass culvert according to claim 1 is characterized in that: An outer support plate (4012) is fixedly connected to one side of the first vertical pole (4014), and an audible and visual alarm module (4013) is fixedly connected to the top of the outer support plate (4012).

3. The collision alarm device for a height-limited protective frame of a railway-span public overpass culvert according to claim 2 is characterized in that: The bottom of the side fixing plate (402) is fixedly connected to a bottom sleeve square frame (403), the inner side of the bottom sleeve square frame (403) is slidably connected to a sliding square frame (406), one side of the bottom sleeve square frame (403) is provided with an external threaded hole (404), the inner side of the external threaded hole (404) is threadedly connected to a side threaded rod (405).

4. The collision alarm device for a height-limited protective frame of a railway-span public overpass culvert according to claim 3 is characterized in that: A sliding sleeve (506) is movably sleeved on the surface of the transverse top rod (3); a top sliding seat (601) is slidably connected to the top of the sliding sleeve (506); a collision alarm module (602) is fixedly connected to the top of the top sliding seat (601); a switch button (605) is fixedly connected to one side of the collision alarm module (602); an antenna module (604) is fixedly connected to the other side of the collision alarm module (602); and a solar panel (603) is fixedly connected to the top of the collision alarm module (602).

5. The collision alarm device for a height-limited protective frame of a railway-span public overpass culvert according to claim 4 is characterized in that: One side of the side upright rod (1) is fixedly connected to a top connecting frame (501), one side of the top connecting frame (501) is fixedly connected to a motor body (502), an output shaft of the motor body (502) is fixedly connected to a top threaded rod (503), one side of the sliding sleeve (506) is fixedly connected to a side transmission block (507), and an internal threaded hole (508) is provided on the surface of the side transmission block (507).

6. The collision alarm device for a height-limited protective frame of a railway-span public overpass culvert according to claim 5 is characterized by: One end of the top threaded rod (503) is movably connected to a No. 1 bearing disc (504), one side of the No. 1 bearing disc (504) is movably connected to a side limit plate (505), and one side of the side limit plate (505) is fixedly connected to the top of the side upright rod (1).

7. The collision alarm device for a height-limited protective frame of a railway-span public overpass culvert according to claim 6 is characterized by: A side limit frame (606) is fixedly connected to one side of the top sliding seat (601), a side threaded hole (607) is opened on one side of the side limit frame (606), and an adjusting bolt (608) is threadedly connected to the inner side of the side threaded hole (607).

8. The collision alarm device for a height-limited protective frame of a railway-span public overpass culvert according to claim 7 is characterized in that: A bearing ring (701) is movably connected to one side of the side transmission block (507), a side transmission bevel gear plate (702) is movably connected to one side of the bearing ring (701), an inner thread surface (703) is provided on the inner side of the side transmission bevel gear plate (702), a top bevel gear plate (705) is meshedly connected to the top of the side transmission bevel gear plate (702), a top bevel gear plate (705) is fixedly connected to the top transmission plate (704), a top transmission rod (707) is fixedly connected to the top of the top transmission plate (704), and a top transmission rod (707) is fixedly connected to the top of the top transmission rod (707). A top inclined transmission disk (708) is provided, one side of the top inclined transmission disk (708) is meshingly connected with a side inclined transmission disk (709), one side of the side inclined transmission disk (709) is fixedly connected with a top movable rod (7010), a surface of the top movable rod (7010) is movably sleeved with a side movable plate (7011), one side of the top movable rod (7010) is fixedly connected with the side movable plate (7011), one side of the side movable plate (7011) is fixedly connected with a cleaning brush (7012), and one side of the top sliding seat (601) is fixedly connected with a heat sink (7013).

9. The collision alarm device for a height-limited protective frame of a railway-span public overpass culvert according to claim 8 is characterized in that: The bottom of the top transmission plate (704) is movably connected to a second bearing plate (706), and the bottom of the second bearing plate (706) is movably connected to the top of the side transmission block (507).

10. A collision alarm system for a height-limited protective frame of a railway-span public interchange culvert, applied to a collision alarm device for a height-limited protective frame of a railway-span public interchange culvert as claimed in claim 9, characterized in that: The invention comprises an ultra-high warning module (409), a video acquisition module (4011), an audible and visual alarm module (4013) and a collision alarm module (602), wherein the ultra-high warning module (409) is used to detect the height of a passing vehicle, and the ultra-high warning module (409) comprises a laser ultra-high radar unit, an intelligent chip unit, a wireless transmission control information processing unit and a signal transmission unit, wherein the laser ultra-high radar unit uses a planar laser scanning radar for ultra-high detection, the intelligent chip unit is used to analyze data, the video acquisition module (4011) is used to capture and record a monitoring area, and the collision alarm module (602) and the ultra-high warning module (409) are ... the laser ultra-high radar unit uses a planar laser scanning radar for ultra-high detection, the intelligent chip unit is used to analyze data, the video acquisition module (4011) is used to capture and record a monitoring area, and the collision alarm module (602) and the ultra-high warning module (409) are used to detect the height of a passing vehicle, and the ultra-high warning module (409) is used to detect the height of a passing vehicle, and the ultra-high warning module (409) is used to detect the height of a passing vehicle, and the ultra-high warning module (409) is used to detect the height of a passing vehicle, and the ultra The block (409) includes a wireless transmission control information processing unit, the wireless transmission information control processing unit is used to receive and process wireless information and send the information, the sound and light alarm module (4013) includes a sound alarm unit and a light alarm unit, which are used to send sound and light alarm information, the collision alarm module (602) includes a wireless transmission control information processing unit, an automatic sleep control unit and a high-sensitivity vibration detection unit, the high-sensitivity vibration detection unit is used to detect whether the cross rod (3) has a collision, and the automatic sleep control unit is used to keep the collision alarm module (602) in a low power consumption state during daily use.

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