CN219975927U - On-site monitoring equipment for expressway accident-prone road section - Google Patents

Abstract

The utility model discloses on-site monitoring equipment for a road section with frequent accidents on an expressway, which comprises a mounting frame and an inclination angle adjusting unit; and (3) mounting frame: the socket that its lower surface middle part set up is interior movable to be pegged graft has the installation shell, the intrados lower extreme of installation shell is connected with through bearing rotation and rotates the shell, rotate and be connected with the camera through bearing rotation between the left and right sides wall of shell, the lower extreme cavity roof of installation shell is equipped with the conducting ring, the upper surface of rotation shell is equipped with the brush of symmetric distribution, the brush all with conducting ring sliding connection, this highway accident multiple road section on-site monitoring equipment, split type design is convenient for the staff quick to carry out the dismouting to highway accident multiple road section on-site monitoring equipment, can make the judgement such as vehicle collision, the emergence of turning on one's side to highway accident multiple road section on-site, the monitoring range of highway accident multiple road section on-site monitoring equipment has been improved greatly.

Description

On-site monitoring equipment for expressway accident-prone road section

Technical Field

The utility model relates to the technical field of on-site monitoring of road sections with frequent expressway accidents, in particular to on-site monitoring equipment for road sections with frequent expressway accidents.

Background

On highways, life and property of people are extremely threatened by accident frequency, and in order to reduce the occurrence rate of traffic accidents, the installation and use of monitoring equipment have become more and more popular, wherein the on-site monitoring equipment is a very important one;

the existing monitoring equipment generally adopts a high-definition camera, utilizes methods such as a computer vision technology, a deep learning algorithm and the like to perform image monitoring, real-time identification and data analysis, and some advanced equipment can also perform operations such as automatic early warning, tracking and positioning and the like, so that powerful support is provided for preventing and treating traffic accidents;

the on-site monitoring equipment for the road sections with the frequent expressway accidents is widely applied to the expressway, but a plurality of problems still exist in the actual use process, most of the existing on-site monitoring equipment for the road sections with the frequent expressway accidents are directly fixed by using mounting holes on the on-site monitoring equipment for the road sections with the frequent expressway accidents due to cost consideration, and the mode is inconvenient to maintain in the later period, and consumes time and labor when being disassembled.

Disclosure of Invention

The utility model aims to overcome the existing defects, provide the on-site monitoring equipment for the expressway accident multiple road sections, and the split design is convenient for workers to rapidly disassemble and assemble the on-site monitoring equipment for the expressway accident multiple road sections, so that the horizontal angle and the inclination angle can be simultaneously adjusted, the monitoring range of the on-site monitoring equipment for the expressway accident multiple road sections is greatly improved, and the problems in the background art can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the on-site monitoring equipment for the expressway accident multiple road sections comprises a mounting rack and an inclination angle adjusting unit;

and (3) mounting frame: the socket arranged in the middle of the lower surface is movably inserted with a mounting shell, the lower end of the intrados of the mounting shell is rotationally connected with a rotating shell through a bearing, a camera is rotationally connected between the left wall surface and the right wall surface of the rotating shell through a bearing II, the top wall surface of the cavity of the lower end of the mounting shell is provided with a conducting ring, the upper surface of the rotating shell is provided with symmetrically distributed electric brushes, the electric brushes are all in sliding connection with the conducting ring, a singlechip is arranged in the cavity of the upper end of the mounting shell, the middle of the bottom wall surface of the cavity of the upper end of the mounting shell is provided with a motor I, and an output shaft of the motor I penetrates through an opening arranged in the middle of the top wall surface of the cavity of the lower end of the mounting shell and is fixedly connected with the upper end surface of the rotating shell;

inclination angle adjusting unit: the tilt angle adjusting unit is arranged in the left end of the rotating shell and fixedly connected with the outer cambered surface of the left extending end of the camera;

wherein: the input end of the singlechip is electrically connected with an external power supply, the conducting ring is electrically connected with the singlechip in a bidirectional manner through a wire, the camera is electrically connected with the electric brush in a bidirectional manner through a wire, the input end of the motor I is electrically connected with the output end of the electric brush through a wire, the split type design is convenient for a worker to rapidly disassemble and assemble the on-site monitoring equipment of the expressway accident multiple road sections, the on-site monitoring equipment of the expressway accident multiple road sections can be judged such as vehicle collision and rollover, the on-site of the expressway accident multiple road sections can be monitored accurately and effectively, the horizontal angle and the inclination angle can be adjusted simultaneously, the monitoring range of the on-site monitoring equipment of the expressway accident multiple road sections is greatly improved, the on-site monitoring equipment of the expressway accident multiple road sections can be monitored more comprehensively, invalid man hours are reduced, the working efficiency is greatly improved, and the on-site monitoring equipment of the expressway accident multiple road sections can be maintained in later stages.

Further, the inclination angle adjusting unit comprises an assembling cavity, a second motor, a worm and a worm wheel, the assembling cavity is arranged inside the left end of the rotating shell, the second motor is arranged at the upper end of the assembling cavity, the worm is arranged at the lower end of an output shaft of the second motor, the worm wheel is arranged on the outer cambered surface of the left extending end of the camera, the worm wheel is meshed with the worm, the input end of the second motor is electrically connected with the output end of the electric brush through a wire, and the inclination angle adjusting requirement of the on-site monitoring equipment for multiple highway accident sections is met.

Further, the wall lower extreme all is equipped with the rectangle spout about in the socket that mounting bracket lower surface middle part set up, and the inside of rectangle spout is equal sliding connection has the limiting plate, and the surface all is equipped with the spacing groove with limiting plate one-to-one about the installation shell, split type design be convenient for the staff quick to carry out the dismouting to the multiple highway accident highway section on-site monitoring equipment.

Furthermore, springs are arranged between the outer side face of the limiting plate and the inner wall face of the rectangular chute where the limiting plate is located, so that the effect of elastic support is achieved.

Further, the extrados of mounting bracket is equipped with the fixed spout of horizontal symmetric distribution, and the inside of fixed spout is equal sliding connection has the button, and fixed spout is linked together with the rectangle spout that vertically corresponds respectively, and the inner chamber of button and limiting plate's inner chamber all are equipped with the cylinder, and fixed spout's inner chamber lower extreme all rotates through the pivot and is connected with the plectrum, and the fluting that the upper and lower end set up of plectrum is respectively with the cylinder sliding connection that the homonymy corresponds, and the later stage of being convenient for is safeguarded and overhauld highway accident multiple road section on-site monitoring equipment.

Further, the outer cambered surface of the installation shell is fixedly provided with a shielding cover through screws, so that the camera is safely protected.

Furthermore, the inner side ends of the limiting plates are arranged in an inclined mode from top to bottom outwards, and smooth operation among all mechanisms is facilitated.

Compared with the prior art, the utility model has the beneficial effects that: the on-site monitoring equipment for the expressway accident multiple road sections has the following advantages:

1. firstly, staff fixedly installs the mounting bracket in the installation place in the scene of the accident multiple road section of the highway through the mode of bolt fixation, then pegging graft the staff with the installation shell and the activity of mounting bracket, in this process, the edges and corners of installation shell upper end can be with the inclined plane contact of limiting plate, along with the continuous upward movement of installation shell, the limiting plate atress overcomes the elasticity of spring and withdraws into the rectangle spout, wait that the installation shell is in full fit with the mounting bracket, top moves the limiting plate under the effect of spring resilience force and stretches out the rectangle spout, reinsert to the corresponding spacing groove that sets up of the surface about the installation shell, with this spacing fixed to installation shell and its affiliated, split type design is convenient for the staff quick dismouting to the scene monitoring equipment of the accident multiple road section of the highway.

2. The camera monitors the monitored area in real time, the monitored information data is synchronized to the singlechip, the singlechip performs data analysis and processing, judges the occurrence of vehicle collision, rollover and the like on the scene of the expressway accident multiple road sections, more accurately and effectively monitors the scene of the expressway accident multiple road sections, when judging that the scene of the expressway accident multiple road sections has accidents, the singlechip locks the scene of the expressway accident multiple road sections through the camera, when the scene monitoring equipment of the expressway accident multiple road sections needs horizontal angle adjustment, the singlechip regulates and controls the operation of a motor, an output shaft of the motor rotates to drive a rotating shell, the camera and an accessory mechanism thereof to synchronously rotate, therefore, the horizontal adjustment of the on-site monitoring equipment for the expressway accident multiple road sections is realized, when the on-site monitoring equipment for the expressway accident multiple road sections needs to be subjected to inclination adjustment, the singlechip regulates and controls the operation of the motor II, the rotation of the output shaft of the motor II drives the worm to synchronously rotate, and the worm rotates to drive the camera to carry out inclination angle adjustment through the worm wheel meshed with the worm to meet the requirement of the on-site monitoring equipment for the expressway accident multiple road sections on inclination angle adjustment, the horizontal and inclination angles can be adjusted simultaneously, the monitoring range of the on-site monitoring equipment for the expressway accident multiple road sections is greatly improved, and the on-site monitoring equipment for the expressway accident multiple road sections can monitor the scene of the expressway accident multiple road sections more comprehensively.

3. When the on-site monitoring equipment of the road accident multiple road sections needs to be taken down in the later stage, a worker presses a button simultaneously, the button moves inwards and pushes the corresponding shifting plate upper end to plant heads inwards through the cylinder of the upper end synchronously, meanwhile, the lower end of the shifting plate is synchronously lifted outwards, the limiting plate is pulled by the cylinder of the lower end to overcome the elasticity of the spring and retract into the rectangular sliding groove, so that the limiting plate is separated from the limiting groove correspondingly arranged on the left surface and the right surface of the mounting shell, the on-site monitoring equipment of the road accident multiple road sections is taken down, the button is released finally, the limiting plate and the accessory mechanism thereof are pushed to reset under the action of the spring resilience force, invalid working hours are reduced, the working efficiency is greatly improved, and the on-site monitoring equipment of the road accident multiple road sections is convenient to maintain and overhaul in the later stage.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view showing the structure of the tilt angle adjusting unit of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of the present utility model at A;

fig. 4 is an enlarged schematic view of the structure of the present utility model at B.

In the figure: 1 mounting frame, 2 mounting shell, 3 rotation shell, 4 cameras, 5 conducting ring, 6 electric brush, 7 shielding cover, 8 motor one, 9 inclination angle adjusting unit, 91 assembly cavity, 92 motor two, 93 worm, 94 worm wheel, 10 rectangular chute, 11 limiting plate, 12 spring, 13 fixed chute, 14 button, 15 cylinder, 16 shifting plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present embodiment provides a technical solution: the on-site monitoring equipment for the accident-prone highway section of the expressway comprises a mounting frame 1 and an inclination angle adjusting unit 9;

mounting bracket 1: the installation frame 1 provides an installation supporting place for an accessory mechanism unit, an installation shell 2 is movably inserted in a socket arranged in the middle of the lower surface of the installation frame, the lower end of an intrados of the installation shell 2 is rotatably connected with a rotation shell 3 through a bearing I, a camera 4 is rotatably connected between the left wall surface and the right wall surface of the rotation shell 3 through a bearing II, the top wall surface of a cavity at the lower end of the installation shell 2 is provided with a conducting ring 5, the upper surface of the rotation shell 3 is provided with symmetrically distributed electric brushes 6, the electric brushes 6 are all in sliding connection with the conducting ring 5, a singlechip is arranged in the cavity at the upper end of the installation shell 2, the middle of the bottom wall surface of the cavity at the upper end of the installation shell 2 is provided with a motor I8, an output shaft of the motor I8 penetrates through an opening arranged in the middle of the top wall surface of the cavity at the lower end of the installation shell 2 and is fixedly connected with the upper end surface of the rotation shell 3, firstly, a worker fixedly installs the installation frame 1 in the installation place in the site of multiple accident road sections of a highway in a mode through bolt fixing, then the staff actively inserts the installation shell 2 and the installation frame 1, the camera 4 monitors the monitored area in real time, the monitored information data is synchronized to the singlechip, the singlechip performs data analysis and processing, and judges the accident multiple road sections of the expressway such as vehicle collision, rollover and the like, so that the accident multiple road sections of the expressway are monitored more accurately and effectively, when the accident of the accident multiple road sections of the expressway is judged, the singlechip locks the accident multiple road sections of the expressway through the camera 4, when the scene monitoring equipment of the accident multiple road sections of the expressway needs horizontal angle adjustment, the singlechip regulates the operation of the motor I8, the output shaft of the motor I8 rotates to drive the rotating shell 3, the camera 4 and auxiliary mechanisms thereof to synchronously rotate, therefore, the horizontal adjustment of the on-site monitoring equipment of the road sections with frequent expressway accidents is realized;

inclination angle adjusting unit 9: the intelligent monitoring system is arranged in the left end of the rotating shell 3, the inclination adjusting unit 9 is fixedly connected with the outer cambered surface of the left extending end of the camera 4, the inclination adjusting unit 9 comprises an assembling cavity 91, a motor II 92, a worm 93 and a worm gear 94, the assembling cavity 91 is arranged in the left end of the rotating shell 3, the motor II 92 is arranged at the upper end of the assembling cavity 91, the worm 93 is arranged at the lower end of the output shaft of the motor II 92, the worm gear 94 is meshed with the worm 93, the input end of the motor II 92 is electrically connected with the output end of the electric brush 6 through a wire, when the on-site monitoring equipment for the accident multiple road sections of the expressway needs to perform inclination adjustment, the singlechip regulates the operation of the motor II 92, the worm 93 is driven to synchronously rotate by the rotation of the output shaft of the motor II 92, the worm 94 is driven by the worm 94 meshed with the worm 4 to perform inclination angle adjustment, so that the requirement of the on-site monitoring equipment for the accident multiple road sections of the expressway is met, the level and the inclination angle can be simultaneously adjusted, the monitoring range of the on-site monitoring equipment for the accident multiple road sections of the expressway can be more comprehensively monitored;

wherein: the input of singlechip is connected outside power, and conducting ring 5 is connected with singlechip two-way electricity through the wire, and camera 4 is connected with brush 6 two-way electricity through the wire, and the input of motor one 8 is connected with brush 6's output electricity through the wire, regulates and control each electrical apparatus operation.

Wherein: the wall lower extreme all is equipped with rectangle spout 10 about in the socket that mounting bracket 1 lower surface middle part set up, the inside of rectangle spout 10 all sliding connection has limiting plate 11, the surface all is equipped with the spacing groove that corresponds with limiting plate 11 one by one about the installation shell 2, with the activity grafting of installation shell 2 and mounting bracket 1, in this process, installation shell 2 upper end edges and corners can with limiting plate 11's inclined plane contact, along with the continuous upward movement of installation shell 2, limiting plate 11 atress overcomes spring 12's elasticity and withdraws in the rectangle spout 10, wait that installation shell 2 and mounting bracket 1 agree with completely the back, top moves limiting plate 11 and stretches out rectangle spout 10 under spring 12 resilience effect, reinsert the spacing groove that installation shell 2 left and right surfaces corresponds the setting, with this carries out spacing fixedly to installation shell 2 and its affiliated, split design is convenient for the quick dismouting to highway accident multiple road section on-site monitoring equipment of staff.

Wherein: springs 12 are arranged between the outer side surface of the limiting plate 11 and the inner wall surface of the rectangular chute 10 where the limiting plate 11 is located, and the springs 12 play a role in elastic support.

Wherein: the outer cambered surface of the mounting frame 1 is provided with transversely symmetrically distributed fixed sliding grooves 13, buttons 14 are slidably connected in the fixed sliding grooves 13, the fixed sliding grooves 13 are respectively communicated with vertically corresponding rectangular sliding grooves 10, the inner cavities of the buttons 14 and the inner cavities of the limiting plates 11 are respectively provided with cylinders 15, the lower ends of the inner cavities of the fixed sliding grooves 13 are respectively connected with a shifting plate 16 through rotation of a rotating shaft, grooves formed in the upper and lower ends of the shifting plates 16 are respectively slidably connected with the cylinders 15 corresponding to the same side, when the on-site monitoring equipment of the highway accident multiple road sections needs to be taken down in the later period, workers simultaneously press the buttons 14, the buttons 14 move inwards and synchronously push the upper ends of the corresponding shifting plates 16 to the inner side through the cylinders 15 at the upper ends to plant heads, and meanwhile, the lower ends of the shifting plates 16 synchronously tilt outwards and move the limiting plates 11 through the cylinders 15 at the lower ends to overcome the elasticity of the springs 12 and retract into the rectangular sliding grooves 10, so that the limiting plates 11 are separated from the limiting grooves correspondingly arranged on the left surface and the right surface of the mounting shell 2, at the moment, the buttons 14 are loosened, and finally, the buttons 14 are conveniently used for the on-site monitoring equipment of the highway accident multiple road sections needs to be taken down, and the on-site monitoring equipment is greatly reduced under the effect of the spring 12 and the reset mechanism, and the effect of the on-site monitoring equipment is greatly reduced, and the on the condition of the accident multiple-site monitoring equipment is convenient.

Wherein: the outer cambered surface of the installation shell 2 is fixedly provided with a shielding cover 7 through screws, so that the camera 4 is safely protected.

Wherein: the inner side ends of the limiting plates 11 are arranged in an inclined mode from top to bottom outwards, and smooth operation among all mechanisms is facilitated.

The working principle of the on-site monitoring equipment for the expressway accident multiple road sections provided by the utility model is as follows: firstly, staff fixedly installs a mounting frame 1 in a mounting place in the scene of an expressway accident multiple road section in a bolt fixing mode, then the staff movably inserts a mounting shell 2 with the mounting frame 1, in the process, the edge angle at the upper end of the mounting shell 2 can be contacted with the inclined surface of a limiting plate 11, the limiting plate 11 is stressed to overcome the elastic force of a spring 12 and retract into a rectangular sliding groove 10 along with the continuous upward movement of the mounting shell 2, after the mounting shell 2 is completely matched with the mounting frame 1, the top movable limiting plate 11 stretches out of the rectangular sliding groove 10 under the action of the rebound force of the spring 12 and reinserts into a limiting groove correspondingly arranged on the left surface and the right surface of the mounting shell 2, so that the mounting shell 2 and an accessory thereof are limited and fixed, the split type design is convenient for the staff to rapidly disassemble and assemble the expressway accident multiple road section scene monitoring equipment, the camera 4 monitors the monitored area in real time, and synchronously sends monitored information data to a singlechip, the singlechip carries out data analysis treatment on the scene of the expressway accident multiple road accidents such as vehicle collisions, rollover and the like, so that the singlechip accurately and effectively monitors the expressway accident scene, and effectively rotates the singlechip at the moment when the accident scene monitoring equipment is required to rotate, and the output shaft 8 is adjusted and the expressway accident scene 8 is required to rotate, and the accident scene monitoring equipment is adjusted when the expressway scene 8 is required to rotate at the level, the level of the highway scene is adjusted and the accident scene is adjusted and the highway scene 8, the highway scene is required to rotate and the camera monitoring equipment is adjusted and the road section 8. The rotation of the output shaft of the motor II 92 drives the worm 93 to synchronously rotate, the worm 93 rotates to drive the camera 4 to adjust the inclination angle through the worm gear 94 which is meshed with the worm 93, so that the requirement of the inclination angle adjustment of the on-site monitoring equipment for the highway accident multiple road sections is met, the horizontal and inclination angles can be simultaneously adjusted, the monitoring range of the on-site monitoring equipment for the highway accident multiple road sections is greatly improved, the on-site monitoring equipment for the highway accident multiple road sections can be more comprehensively monitored, when the on-site monitoring equipment for the highway accident multiple road sections needs to be taken down in the later period, a worker simultaneously presses down the button 14, the button 14 moves inwards and synchronously pushes the corresponding pulling plate 16 to the inner side through the cylinder 15 at the upper end, and at the same time, the lower end of the pulling plate 16 synchronously starts outwards and moves the limiting plate 11 through the cylinder 15 at the lower end to overcome the elasticity of the spring 12 and retract into the rectangular sliding groove 10, at the moment, the limiting plate 11 is separated from the limit groove correspondingly arranged on the left surface and the right surface of the mounting shell 2, finally, the button 14 is taken down, the on-site monitoring equipment for the highway accident multiple road sections needs to be conveniently removed, the on-site monitoring equipment is greatly invalid, and the on-site accident multiple road accident monitoring equipment is greatly reduced after the spring is reset, and the on-site monitoring equipment is greatly required to be maintained, and the on the high-site is more invalid, and the on the high-site is conveniently and the high-speed on the side is required to be recovered.

It should be noted that the core chip of the single chip microcomputer disclosed in the above embodiment is a PLC single chip microcomputer, the specific model is S7-200, the camera 4, the motor one 8 and the motor two 92 can be freely configured according to the practical application scenario, the camera 4 can be an IMX323 type camera, the motor one 8 and the motor two 92 can be 28BYJ-48 type motors, and the single chip microcomputer controls the camera 4, the motor one 8 and the motor two 92 to work by a method commonly used in the prior art.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (7)

1. Highway accident multiple road section on-site monitoring equipment, its characterized in that: comprises a mounting frame (1) and an inclination angle adjusting unit (9);

mounting bracket (1): the socket arranged in the middle of the lower surface of the installation shell is movably inserted with the installation shell (2), the lower end of the intrados of the installation shell (2) is rotationally connected with the rotation shell (3) through a bearing, a camera (4) is rotationally connected between the left wall surface and the right wall surface of the rotation shell (3) through a bearing II, a conductive ring (5) is arranged on the top wall surface of a cavity at the lower end of the installation shell (2), symmetrically distributed brushes (6) are arranged on the upper surface of the rotation shell (3), the brushes (6) are all in sliding connection with the conductive ring (5), a motor I (8) is arranged in the middle of the bottom wall surface of the cavity at the upper end of the installation shell (2), and an output shaft of the motor I (8) penetrates through an opening arranged in the middle of the top wall surface of the cavity at the lower end of the installation shell (2) and is fixedly connected with the upper end surface of the rotation shell (3);

inclination angle adjusting unit (9): the tilt angle adjusting unit (9) is fixedly connected with the outer cambered surface of the left extending end of the camera (4) in the left end of the rotating shell (3).

2. The highway accident-prone road segment field monitoring device of claim 1, wherein: the inclination adjusting unit (9) comprises an assembling cavity (91), a motor II (92), a worm (93) and a worm wheel (94), wherein the assembling cavity (91) is arranged inside the left end of the rotating shell (3), the motor II (92) is arranged at the upper end of the assembling cavity (91), the worm (93) is arranged at the lower end of an output shaft of the motor II (92), the worm wheel (94) is arranged on the outer cambered surface of the left extending end of the camera (4), and the worm wheel (94) is meshed with the worm (93).

3. The highway accident-prone road segment field monitoring device of claim 1, wherein: the wall lower extreme all is equipped with rectangle spout (10) about in the socket that mounting bracket (1) lower surface middle part set up, and the inside of rectangle spout (10) all sliding connection has limiting plate (11), and the surface all is equipped with the spacing groove with limiting plate (11) one-to-one about installing shell (2).

4. The highway accident-prone road segment field monitoring device of claim 3, wherein: springs (12) are arranged between the outer side surface of the limiting plate (11) and the inner wall surface of the rectangular chute (10) where the limiting plate (11) is located.

5. The highway accident-prone road segment field monitoring device of claim 3, wherein: the utility model discloses a fixing device for the automobile, including mounting bracket (1), fixed spout (13) that outer cambered surface of mounting bracket (1) was equipped with transverse symmetry and distributes, the inside of fixed spout (13) is equal sliding connection has button (14), fixed spout (13) are linked together with rectangle spout (10) that vertically corresponds respectively, the inner chamber of button (14) and the inner chamber of limiting plate (11) all are equipped with cylinder (15), the inner chamber lower extreme of fixed spout (13) all rotates through the pivot and is connected with and dials board (16), the fluting that dials board (16) upper and lower end set up respectively with cylinder (15) sliding connection that homonymy corresponds.

6. The highway accident-prone road segment field monitoring device of claim 1, wherein: the outer cambered surface of the installation shell (2) is fixedly provided with a shielding cover (7) through screws.

7. The highway accident-prone road segment field monitoring device of claim 3, wherein: the inner side ends of the limiting plates (11) are all arranged in an inclined mode from top to bottom outwards.