Highway traffic guarantee system for improving commuting efficiency

Abstract

The invention relates to the technical field of expressway facilities, in particular to an expressway traffic guarantee system capable of improving commuting efficiency. According to the highway traffic guarantee system, the shear fork type movable guardrails are used for connecting the isolation piles, on one hand, the isolation function of a foundation is achieved, on the other hand, the constraint of left-right movement of the isolation piles is reduced, and therefore after the isolation piles deviate, the isolation piles can be located according to the relative position changes of the isolation piles and tracking lines; deviation correction of the lane changing mechanism is realized in a manner of enlarging a same-direction lane or a reverse-direction lane; meanwhile, by means of the mode that the same-direction lane is enlarged when the tracking line deviates forwards and the reverse lane is enlarged when the tracking line deviates backwards, automatic capacity expansion is carried out, and therefore the situation that the isolation pile is installed in a deviated mode next time is avoided while automatic deviation rectification is carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of highway facilities, and in particular to a highway traffic guarantee system for improving commuting efficiency. Background Art

[0002] In some existing highway traffic guarantee systems, in order to solve the traffic jam problem caused by vehicles queuing on the down ramp during rush hour, a lane changing mechanism is set on the main road corresponding to the down ramp to prompt one or more lanes in the opposite lane of the main road to be temporarily changed to the same direction lane, thereby increasing the number of lanes in the same direction as the down ramp and alleviating traffic jams.

[0003] However, under the influence of unexpected factors such as vehicle collision, wind, and human factors, the lane change mechanism is prone to deviation, making it impossible to achieve the expected division of the same-direction lane and the opposite-direction lane on the main road. Either the opposite-direction lane is occupied too much, causing unnecessary congestion in the opposite-direction lane; or the same-direction lane is not expanded enough, failing to achieve the expected effect of alleviating traffic congestion.

[0004] Therefore, the prior art urgently needs a highway traffic assurance system that can correct the deviation when the lane change mechanism is unexpectedly deformed. Summary of the invention

[0005] In view of the above problems, the present invention is proposed to provide a highway traffic guarantee system for improving commuting efficiency that overcomes the above problems or at least partially solves the above problems, and can solve the problem that the existing lane change mechanism cannot be corrected after deviation.

[0006] Specifically, the present invention provides a highway traffic guarantee system for improving commuting efficiency, comprising: A guide structure, comprising a tracking line extending left and right and laid on the road surface of the expressway, wherein the tracking lines are multiple and spaced apart in the length direction of the expressway; A lane changing mechanism, comprising a plurality of isolation piles arranged one by one on the plurality of tracking lines, a scissor-type movable guardrail connected between two connected isolation piles; the plurality of isolation piles each comprises a pile body, a walking mechanism for walking left and right is arranged at the bottom of the pile body, a camera for acquiring image information on the road surface is arranged on the left and / or right side of the pile body, a sensing device for identifying the tracking line, and a sub-control module for controlling the start and stop of the walking mechanism are also arranged on the pile body; A master control device, comprising a master control module that is communicatively connected to the sensing device, the camera, and the sub-control module of each isolation pile, and the master control module is configured as follows: In response to the road condition information on one side of the lane change mechanism in the left-right direction reaching a preset condition, controlling the walking mechanism to walk from an initial position to a preset position on the other side; After the walking mechanism reaches the preset position, in response to the deviation of the tracking line from the preset position in the screen information, when the tracking line in the screen information is on the front side of the preset posture in the same direction of the oncoming vehicle, the walking mechanism of the isolation pile and the walking mechanisms of the isolation piles adjacent to it before and after are controlled to move toward their respective corresponding preset positions until the isolation pile and the isolation piles adjacent to it before and after reach their respective corresponding preset positions; or, when the tracking line in the screen information is on the rear side of the preset posture in the same direction of the oncoming vehicle, the walking mechanism of the isolation pile is controlled to move toward the initial setting position until the isolation pile moves to the preset position.

[0007] Preferably, a first cavity, a second cavity, a third cavity and a fourth cavity are formed in the pile body and are spaced apart from each other from top to bottom, wherein: A hinge mechanism connected to the movable guardrail is arranged in the first cavity; A reduction motor is arranged in the second cavity; A driving pulley connected to the output shaft of the reduction motor is arranged in the third cavity, and the driving pulley is connected to two driven pulleys distributed in a herringbone shape through a transmission belt; Two driving bevel gears coaxially connected to the two driven pulleys are arranged in the fourth cavity, the two driving bevel gears are respectively meshed with the driven bevel gears, the driven bevel gears are coaxially fixed to the wheel axle, both ends of the wheel axle extend from the front and rear sides of the fourth cavity, and the extended parts are connected to the wheels via bearings; and, The reduction motor, the driving pulley, the transmission belt, the driven pulley, the driving bevel gear, the driven bevel gear, the axle, and the wheel constitute the wheeled walking mechanism.

[0008] Preferably, the hinge mechanism comprises: A fixed rotating shaft, whose axis coincides with the central axis of the pile body and is cylindrical; A connecting frame, comprising a rotating portion rotatably sleeved on the fixed rotating shaft, and a connecting portion penetrating from an opening formed on the cavity wall of the first cavity, wherein the rotating portion is formed with concave portions and convex portions alternately distributed in the axial direction of the fixed rotating shaft, and the groove bottom of the concave portion and the tooth top of the convex portion form a matching arc surface located on the same side; and, There are two connecting frames, the rotating parts of the two connecting frames are matched with complementary concave and convex fittings, and the matching arc surfaces of the two rotating frames are located on the same side.

[0009] Preferably, the connecting portion comprises: Two connecting rods are provided and are respectively located at the upper and lower ends of the rotating part, the two connecting rods are perpendicular to the fixed rotating shaft; and one end of the connecting rods is fixed to the rotating part, and the other end extends out from the opening of the first cavity; The back of the connecting plate is hinged to the protruding end of the connecting rod, and two groups of cantilever rods spaced apart from each other are symmetrically formed on both sides. The middle part of the cantilever rod is thinner than the two ends, and a sliding sleeve is slidably sleeved in the middle part of the cantilever rod, and the sliding sleeve is connected to the movable guardrail.

[0010] Preferably, the master control device is further configured to: Before controlling the walking mechanism to walk from the initial position to the preset position on the other side, based on a preset number, the lane change mechanism is controlled to move in a manner such that the number of the isolation piles in front of the down-ramp and the number of the isolation piles behind the down-ramp are in a preset ratio; wherein the number of the isolation piles in front of the down-ramp is greater than the number of the isolation piles behind the down-ramp; After the isolation pile and the isolation piles adjacent to it before and after it reach their respective corresponding preset positions, 6 are added to the preset number, and the added value is used as the preset number for controlling the lane change mechanism next time; or, after the isolation pile moves to the preset position, 2 are subtracted from the preset number, and the subtracted value is used as the preset number for controlling the lane change mechanism next time.

[0011] Preferably, the preset ratio is 2:8 or 3:7.

[0012] Preferably, the pile body has a skirt portion and a columnar portion above it, the skirt portion is exposed from the periphery of the columnar portion; and the camera is located in the middle of the columnar portion, so that the image information can reflect the relative position of a section of the tracking line and the edge of the skirt portion. The beneficial effects of the present invention are: The highway traffic guarantee system of the present invention uses a scissor-type movable guardrail to connect between isolation piles, which realizes the basic isolation function on the one hand and reduces the constraint of the isolation piles on the left and right movement on the other hand. Therefore, after the isolation piles deviate, the lane change mechanism can be corrected by increasing the same-direction lane or the opposite lane according to the relative position change of the isolation piles and the tracking line; at the same time, automatic expansion is performed by increasing the same-direction lane when the tracking line deviates forward and increasing the opposite lane when the tracking line deviates backward, thereby preventing the isolation piles from being installed offset again next time while automatically correcting the deviation. Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings: Figure 1 is a schematic structural diagram of a highway traffic guarantee system according to an embodiment of the present invention; Figure 2 yes Figure 1 Schematic structural diagram of the isolation pile from an axonometric perspective; Figure 3 yes Figure 1 Top view of the middle isolation pile; Figure 4 yes Figure 3 AA section view of the middle isolation pile; Figure 5 yes Figure 3 BB section view of the center isolation pile in axonometric perspective; Figure 6 yes Figure 1 Main view of the middle isolation pile; Figure 7 yes Figure 6 CC section view of the center isolation pile; Figure 8 is a schematic structural diagram of a hinge mechanism in an isolation pile according to an embodiment of the present invention; Fig. 9 yes Figure 8 A schematic structural diagram of a connecting frame of a central articulated mechanism; Fig.10 is a schematic structural diagram of a walking mechanism according to an embodiment of the present invention; Fig.11 It is a schematic structural diagram of the relative position transformation of the isolation pile and the tracking line according to an embodiment of the present invention.

[0014] in: Guidance structure-100, tracking line-110; Lane changing mechanism 200, isolation pile 210, pile body 211, walking mechanism 212, camera 213, articulated mechanism 214, reduction motor 215, driving pulley 216, driven pulley 217, driving bevel gear 218, driven bevel gear 219, axle 231, wheel 232, fixed rotating shaft 241, connecting frame 242, rotating part 251, connecting part 252, matching arc surface 253, connecting rod 261, connecting plate 262, cantilever rod 263, skirt part 271, columnar part 272, first cavity 201, second cavity 202, third cavity 203, fourth cavity 204, movable guardrail 220. DETAILED DESCRIPTION

[0015] In the description of the embodiments of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0016] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0017] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0018] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0019] Based on the highway traffic guarantee system proposed in the prior application, that is, it includes: The congestion detection system is used to detect the congestion situation of the left and right lanes of the two-way expressway in real time, including an image capture module for capturing images of each lane and a pre-buried induction coil area arranged on each main lane. The image capture module and the pre-buried induction coil area on each side are arranged in an upstream area at a certain distance from the exit ramp. A plurality of ground pressure induction coils are pre-buried in each pre-buried induction coil area. The ground pressure induction coils and the image capture module on each side are connected to a congestion detection controller through wires. The congestion detection controller includes a congestion detection wireless transceiver module. The change warning system is used to warn drivers in the left lane to avoid before and after the lane change, and includes a pre-buried ground warning light area and an electronic sign on the roadside, which are arranged at a certain distance from the exit ramp on the right side and upstream of the left lane. A plurality of indicator lights are arranged in the pre-buried ground warning light area, and each indicator light and the electronic sign are connected to a change warning controller through wires. The change warning controller includes a change warning wireless transceiver module; The lane change system is used to change the left lane to the right lane to relieve congestion when congestion conditions are met. It includes a plurality of movable guardrails set between the left and right lanes for isolation, and tracking lines and positioning radio frequency chips set on the ground to guide the moving tracks of each movable guardrail. The setting length of the movable guardrail covers a certain distance upstream and downstream of the right exit ramp; The master control device is connected to the wireless transceiver modules of the other modules through the wireless transceiver module, and controls the lane change warning system to display lane change warning information and controls the lane change system to change lanes to relieve the traffic pressure on the right lane according to the congestion situation detected by the congestion detection system.

[0020] From the above, we can see that the existing highway traffic guarantee system is specifically designed to solve the problem that the upstream main lane at the exit ramp of the highway is easily congested due to the congestion of the exit ramp, avoid the vicious cycle of congestion, and promptly relieve the congestion in the early stage of congestion, so as to prevent the secondary deterioration of congestion on the exit ramp. It provides an unmanned automatic congestion relief solution, which can automatically monitor and automatically clear the congestion problem of the main lane. It is especially aimed at the scenario where the exit ramps on both sides of the two-way highway are a distance apart. It may not be applicable to the situation where the exit ramps on both sides of the two-way lanes are symmetrically set or relatively close to the road surface.

[0021] like Figure 1 The embodiment of the present invention shown in the figure provides a highway traffic guarantee system, and combines Figure 2-10 As shown, the highway traffic guarantee system of the present invention is mainly composed of a guiding structure 100, a lane changing mechanism 200 and a master control device.

[0022] The guide structure 100 includes a tracking line 110 extending left and right and laid on the road surface of the highway. There are a plurality of tracking lines 110 , which are spaced apart in the longitudinal direction of the highway.

[0023] The lane changing mechanism 200 includes a plurality of isolation piles 210 arranged one by one on the plurality of tracking lines 110, and a scissor-type movable guardrail 220 is connected between two connected isolation piles 210; the plurality of isolation piles 210 each include a pile body 211, a walking mechanism 212 for left and right walking is arranged at the bottom of the pile body 211, a camera 213 for obtaining image information on the road surface is arranged on the left and / or right side of the pile body 211, and a sensing device for identifying the tracking line 110 and a sub-control module for controlling the start and stop of the walking mechanism 212 are also arranged on the pile body 211.

[0024] The master control device includes a master control module that is communicatively connected to the sensing devices of each isolation pile 210, the camera 213 and the sub-control module. The master control module is configured as follows: In response to the road condition information on one side of the lane change mechanism 200 in the left-right direction reaching a preset condition, the walking mechanism 212 is controlled to walk from an initial position to a preset position on the other side; After the walking mechanism 212 reaches the preset position, in response to the tracking line 110 deviating from the preset position in the screen information, when the tracking line 110 is at the front side of the preset posture in the same direction of the oncoming vehicle in the screen information, the walking mechanism 212 of the isolation pile 210 and the walking mechanisms 212 of the isolation pile 210 adjacent to it are controlled to move toward their respective corresponding preset positions until the isolation pile 210 and the isolation piles 210 adjacent to it in front and behind them all reach their respective corresponding preset positions; or, when the tracking line 110 is at the rear side of the preset posture in the same direction of the oncoming vehicle in the screen information, the walking mechanism 212 of the isolation pile 210 is controlled to move toward the initial setting position until the isolation pile 210 moves to the preset position.

[0025] In the process of using the above-mentioned highway traffic guarantee system, the lane change mechanism 200 is initially laid on the same-direction lane of the two-way lane ( Figure 1 center right lane) and the oncoming lane ( Figure 1 The lane change mechanism 200 overlaps the dividing line between the same-direction lane and the opposite lane; when it is detected that the same-direction lane is crowded in the down ramp, the lane change mechanism 200 is controlled to change lanes according to the preset program to expand the same-direction lane; after that, when it is detected that the traffic flow in the down ramp has returned to normal, the lane change mechanism 200 is controlled to return to the initial position. Among them, the vehicle congestion situation can be predicted by the induction coil pre-buried on the road surface, or it can be obtained by calculation. The congestion situation of the road can be accurately obtained by calculating the number of passing vehicles and the speed. In other embodiments, the congestion situation can also be fed back through the data of Amap and Baidu Maps, and the user positioning navigation data. As a user of the map, they are actually contributors to the map data. In the process of planning navigation, the vehicle can calculate the current road congestion status by observing the location and moving speed of the vehicle. Or use the big data of communication base stations. On the highway, there is a mobile operator base station about 2 kilometers away. When a mobile phone user passes by the base station, the signaling data formed can more accurately reflect the real-time road conditions of the section within a unit time. By combining historical highway data, real-time data and road network conditions, road conditions within the next hour can be predicted with an accuracy rate of over 91%.

[0026] As some preferred embodiments of the highway traffic guarantee system in the embodiments of the present invention, the master control device may also be configured as follows: Before controlling the walking mechanism 212 to move from the initial position to the preset position on the other side, based on the preset number, the lane change mechanism 200 is controlled to move in a manner that the number of the isolation piles 210 in front of the down-ramp and the number of the isolation piles 210 behind the down-ramp are in a preset ratio; wherein the number of the isolation piles 210 in front of the down-ramp is greater than the number of the isolation piles 210 behind the down-ramp; After the isolation pile 210 and its front and rear adjacent isolation piles 210 have reached their respective corresponding preset positions, 6 are added to the preset number, and the added value is used as the preset number for controlling the lane change mechanism 200 next time; or, after the isolation pile 210 moves to the preset position, 2 are subtracted from the preset number, and the subtracted value is used as the preset number for controlling the lane change mechanism 200 next time.

[0027] In this way, after each lane change, the rationality can be determined according to the collision situation of the lane change mechanism 200, so as to adjust the preset amount of capacity expansion of the next lane change mechanism 200, that is, the next time the lane change mechanism 200 is controlled to change lanes, the corresponding number of isolation piles 210 are directly controlled according to the increased or subtracted value. This further makes the lane expansion more reasonable and more effectively shortens the adjustment time of the lane change mechanism 200.

[0028] As some further preferred embodiments of the highway traffic guarantee system in the embodiment of the present invention, the preset ratio is 2:8 or 3:7. In this way, more expansion sections can be placed before the down-ramp, which can more effectively alleviate vehicle congestion.

[0029] In some preferred embodiments of the highway traffic guarantee system in the embodiments of the present invention, a first cavity 201, a second cavity 202, a third cavity 203 and a fourth cavity 204 are formed in the pile body 211, which are spaced from top to bottom in sequence. A hinge mechanism 214 connected to the movable guardrail 220 is arranged in the first cavity 201; a reduction motor 215 is arranged in the second cavity 202; a driving pulley 216 connected to the output shaft of the reduction motor 215 is arranged in the third cavity 203, and the driving pulley 216 is connected to two driven pulleys 21 distributed in a herringbone shape through a transmission belt. 7; Two driving bevel gears 218 coaxially connected to the two driven pulleys 217 are arranged in the fourth cavity 204, the two driving bevel gears 218 are respectively meshed with the driven bevel gear 219, the driven bevel gear 219 is coaxially fixed to the wheel shaft 231, both ends of the wheel shaft 231 extend from the front and rear sides of the fourth cavity 204, and the extended part is connected to the wheel 232 through the bearing; and the reduction motor 215 and the driving pulley 216, the transmission belt, the driven pulley 217, the driving bevel gear 218, the driven bevel gear 219, the wheel shaft 231, and the wheel 232 constitute the wheeled walking mechanism 212. The power part of the walking mechanism 212 is placed in the closed second cavity 202 and the third cavity 203, and the open first cavity 201 is used to connect the movable guardrail 220, so as to avoid the erosion of the walking power part by bad weather, which helps to extend the service life of the isolation pile 210; at the same time, the use of the herringbone belt drive structure can increase the walking stability at the bottom of the pile body 211, so that when the two are combined, the lane change mechanism 200 can move between the initial position and the preset position more stably and accurately, further ensuring the reliability of lane changing.

[0030] In some further preferred embodiments of the highway traffic guarantee system in the embodiments of the present invention, the articulated mechanism 214 is mainly composed of a fixed rotating shaft 241 and a connecting frame 242. The axis of the fixed rotating shaft 241 coincides with the central axis of the pile body 211, and it is cylindrical; the connecting frame 242 has a rotating portion 251 that is rotatably sleeved on the fixed rotating shaft 241, and a connecting portion 252 that passes through an opening formed on the wall of the first cavity 201, and the rotating portion 251 is formed with concave and convex portions that are alternately distributed in the axial direction of the fixed rotating shaft 241, and the groove bottom of the concave portion and the tooth top of the convex portion form a matching arc surface 253 located on the same side. There are two connecting frames 242, and the rotating portions 251 of the two connecting frames 242 are matched with complementary concave and convex fittings, and the matching arc surfaces 253 of the two rotating frames are located on the same side. By utilizing the relative rotational cooperation of the concave and convex surfaces of the two connecting frames 242 with a straight surface on one side and a curved transition surface on the other side, when the lane change mechanism 200 moves to the initial position, the hinge mechanism 214 in each isolation pile 210 is locked at the dead point, avoiding possible encroachment on the same-direction lane.

[0031] In some further preferred embodiments of the highway traffic guarantee system in the embodiments of the present invention, the connecting part 252 is mainly composed of a connecting rod 261 and a connecting plate 262. There are two connecting rods 261, which are respectively located at the upper and lower ends of the rotating part 251. The two connecting rods 261 are perpendicular to the fixed rotating shaft 241; and one end of each connecting rod 261 is fixed on the rotating part 251, and the other end extends out from the opening of the first cavity 201. The back of the connecting plate 262 is hinged to the extended end of the connecting rod 261, and two groups of cantilever rods 263 spaced up and down are symmetrically formed on both sides of the connecting plate 262. The middle part of the cantilever rod 263 is thinner than the two ends, and a sliding sleeve (not shown in the figure) is slidably sleeved in the middle part of the cantilever rod 263, and the sliding sleeve is connected to the movable guardrail 220. The hinge between the connecting rod 261 and the connecting plate 262 can provide a high degree of automation for the connection between the movable guardrail 220 and the isolation pile 210, and the limited length sliding connection between the sliding sleeve and the cantilever rod 263 can add a low degree of automation for the connection between the movable guardrail 220 and the isolation pile 210. In addition, the high degree of freedom of rotation between the connecting frame 242 and the rotating shaft further increases the relative posture between the movable guardrail 220 and the isolation pile 210, thereby ensuring that when the isolation pile 210 moves to any position on the left or right, the interference of the movable guardrail 220 on its left or right movement is minimized, thereby further improving the reliability and accuracy of lane changing using the lane changing mechanism 200.

[0032] In some further preferred embodiments of the highway traffic guarantee system in the embodiments of the present invention, the pile body 211 has a skirt portion 271 and a columnar portion 272 above it, and the skirt portion 271 is exposed from the periphery of the columnar portion 272; and the camera 213 is located in the middle of the columnar portion 272, so that the image information can reflect the relative position of a section of the tracking line 110 and the edge of the skirt portion 271. The camera 213 fixed relative to the pile body 211 is used to measure whether the tracking line 110 is in the preset position with the edge of its skirt portion 271 as a reference. Fig.11 As shown, when the camera 213 is exactly located at the midline position of the pile body 211, the preset position in the image information should also be the midline position of the image. In this way, the relative position of the tracking line 110 can be obtained more conveniently for comparison.

[0033] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A highway traffic guarantee system for improving commuting efficiency, characterized in that: include: A guide structure, comprising a tracking line extending left and right and laid on the road surface of the expressway, wherein the tracking lines are multiple and spaced apart in the length direction of the expressway; A lane changing mechanism, comprising a plurality of isolation piles arranged one by one on the plurality of tracking lines, a scissor-type movable guardrail connected between two connected isolation piles; the plurality of isolation piles each comprises a pile body, a walking mechanism for walking left and right is arranged at the bottom of the pile body, a camera for acquiring image information on the road surface is arranged on the left and / or right side of the pile body, a sensing device for identifying the tracking line, and a sub-control module for controlling the start and stop of the walking mechanism are also arranged on the pile body; A master control device, comprising a master control module that is communicatively connected to the sensing device, the camera, and the sub-control module of each isolation pile, and the master control module is configured as follows: In response to the road condition information on one side of the lane change mechanism in the left-right direction reaching a preset condition, controlling the walking mechanism to walk from an initial position to a preset position on the other side; After the walking mechanism reaches the preset position, in response to the deviation of the tracking line from the preset position in the screen information, when the tracking line in the screen information is on the front side of the preset posture in the same direction of the oncoming vehicle, the walking mechanism of the isolation pile and the walking mechanisms of the isolation piles adjacent to it before and after are controlled to move toward their respective corresponding preset positions until the isolation pile and the isolation piles adjacent to it before and after reach their respective corresponding preset positions; or, when the tracking line in the screen information is on the rear side of the preset posture in the same direction of the oncoming vehicle, the walking mechanism of the isolation pile is controlled to move toward the initial setting position until the isolation pile moves to the preset position.

2. The highway traffic guarantee system according to claim 1, characterized in that: A first cavity, a second cavity, a third cavity and a fourth cavity are formed in the pile body and are spaced apart from each other from top to bottom. A hinge mechanism connected to the movable guardrail is arranged in the first cavity; A reduction motor is arranged in the second cavity; A driving pulley connected to the output shaft of the reduction motor is arranged in the third cavity, and the driving pulley is connected to two driven pulleys distributed in a herringbone shape through a transmission belt; Two driving bevel gears coaxially connected to the two driven pulleys are arranged in the fourth cavity, the two driving bevel gears are respectively meshed with the driven bevel gears, the driven bevel gears are coaxially fixed to the wheel axle, both ends of the wheel axle extend from the front and rear sides of the fourth cavity, and the extended parts are connected to the wheels via bearings; and, The reduction motor, the driving pulley, the transmission belt, the driven pulley, the driving bevel gear, the driven bevel gear, the axle, and the wheel constitute the wheeled walking mechanism.

3. The highway traffic guarantee system according to claim 2, characterized in that: The hinge mechanism comprises: A fixed rotating shaft, whose axis coincides with the central axis of the pile body and is cylindrical; A connecting frame, comprising a rotating portion rotatably sleeved on the fixed rotating shaft, and a connecting portion penetrating from an opening formed on the cavity wall of the first cavity, wherein the rotating portion is formed with concave portions and convex portions alternately distributed in the axial direction of the fixed rotating shaft, and the groove bottom of the concave portion and the tooth top of the convex portion form a matching arc surface located on the same side; and, There are two connecting frames, the rotating parts of the two connecting frames are matched with complementary concave and convex fittings, and the matching arc surfaces of the two rotating frames are located on the same side.

4. The highway traffic guarantee system according to claim 3, characterized in that: The connecting portion comprises: Two connecting rods are provided and are respectively located at the upper and lower ends of the rotating part, the two connecting rods are perpendicular to the fixed rotating shaft; and one end of the connecting rods is fixed to the rotating part, and the other end extends out from the opening of the first cavity; The back of the connecting plate is hinged to the protruding end of the connecting rod, and two groups of cantilever rods spaced apart from each other are symmetrically formed on both sides. The middle part of the cantilever rod is thinner than the two ends, and a sliding sleeve is slidably sleeved in the middle part of the cantilever rod, and the sliding sleeve is connected to the movable guardrail.

5. The highway traffic guarantee system according to claim 1, characterized in that: The master control device is also configured to: Before controlling the walking mechanism to walk from the initial position to the preset position on the other side, based on a preset number, the lane change mechanism is controlled to move in a manner such that the number of the isolation piles in front of the down-ramp and the number of the isolation piles behind the down-ramp are in a preset ratio; wherein the number of the isolation piles in front of the down-ramp is greater than the number of the isolation piles behind the down-ramp; After the isolation pile and the isolation piles adjacent to it before and after it reach their respective corresponding preset positions, 6 are added to the preset number, and the added value is used as the preset number for controlling the lane change mechanism next time; or, after the isolation pile moves to the preset position, 2 are subtracted from the preset number, and the subtracted value is used as the preset number for controlling the lane change mechanism next time.

6. The highway traffic guarantee system according to claim 5, characterized in that: The preset ratio is 2:8 or 3:

7.

7. The highway traffic guarantee system according to claim 1, characterized in that: The pile body has a skirt portion and a columnar portion above it, wherein the skirt portion is exposed from the periphery of the columnar portion; and the camera is located in the middle of the columnar portion so that the image information can reflect the relative position of a section of the tracking line and the edge of the skirt portion.

Images