CN217034929U - Adjustable curve driving safety guidance system - Google Patents

Abstract

The utility model relates to an adjustable curve driving safety guidance system which comprises at least one slide rail and at least one slide block, wherein the slide rail is parallel to the line shape of a road and is arranged on the outer side of the road, the slide block is arranged on the slide rail, can move along the slide rail and can be positioned on the slide rail, a follow-up part is arranged on the slide block, and the follow-up part can move along with the slide block. The adjustable curve driving safety guidance system enables the position of the speed limit sign, the displayed speed limit value, the position, the turning angle and the visibility of the driving guidance sign, the position of the road condition detection device and the like to be adjusted according to the requirements, thereby meeting the requirement of managing and controlling passing vehicles under different road surface wet and slippery degrees and visibility conditions, providing convenient conditions for implementing various curve driving guidance control strategies and providing a hardware basis for intelligent traffic management and control of a road curve area.

Description

Adjustable curve driving safety guidance system

Technical Field

The utility model relates to the field of traffic safety, in particular to an adjustable driving safety guidance system suitable for a road curve.

Background

The road curve belongs to a traffic accident frequently-occurring area. Due to the road alignment change, the driver of the vehicle is required to appropriately adjust the traveling direction and speed of the vehicle. Under bad weather such as fog, haze, rain, snow, dust and the like, a driver cannot clearly recognize the curve due to low visibility, the road profile cannot be quickly and accurately recognized, and the accident of guardrail collision is more easily caused; meanwhile, in bad weather, the road surface is wet and slippery, and if a driver cannot timely control the deceleration of the vehicle at a curve, the vehicle is extremely easy to sideslip and even rollover accidents. Therefore, in bad weather, road surface wet and low visibility may adversely affect the safety of driving on curves.

At present, a speed limit sign is generally arranged in front of a curve on a road, and a linear induction sign is arranged at the curve, so as to remind a driver of decelerating, pay attention to linear change of a road in front, and guide driving direction, thereby improving driving safety. However, in bad weather, the visibility of the sign, the frictional performance of the road surface, the braking performance of the vehicle, and the like vary depending on the visibility and the wet skid of the road surface. However, the existing speed limit signs and linear induction signs are both fixedly installed at both sides of a curve, so that the speed limit value of the curve, the setting position of the speed limit sign and the setting position of the linear induction sign cannot be correspondingly adjusted according to the change of visibility and road surface wet-skid, and the visibility of various signs cannot be correspondingly adjusted; and may even create a safety hazard by failing to provide proper warnings and alerts to the driver. Therefore, the conventional curve driving guidance facility cannot adapt to the wet and slippery state of the road surface and the change of visibility, and cannot meet the requirement of traffic control under bad weather conditions.

In summary, it is necessary to design an adjustable curve driving safety guidance system to meet the requirements of traffic control under different road wet-skid and visibility conditions, solve the problem of safety guarantee of curve driving under adverse weather conditions, and meet the requirements of traffic control on efficiency and intellectualization.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the defect that safety facilities of the road curve in the prior art cannot be adjusted correspondingly according to the change of the road wet smoothness and the visibility condition is overcome, and the requirement of safety guarantee of the curve running under the bad weather condition is met.

In order to solve the technical problem, the utility model provides an adjustable curve driving safety guidance system which comprises at least one slide rail and at least one slide block, wherein the slide rail is parallel to the line shape of a road and is arranged on the outer side of the road, the slide block is arranged on the slide rail, can move along the slide rail and can be positioned on the slide rail, and a follow-up part is arranged on the slide block and can move along with the slide block.

Preferably, the sliding block further comprises a driving device and a positioning sensing device, the driving device is used for driving the sliding block to move relative to the sliding rail, and the positioning sensing device is used for determining the position of the sliding block relative to the sliding rail.

Preferably, the slide rail comprises a first slide rail and a second slide rail, the first slide rail is parallel to the second slide rail and is arranged above the second slide rail, the slide block comprises a first slide block arranged on the first slide rail and a second slide block arranged on the second slide rail, and the follower component is connected with the first slide block and the second slide block at the same time.

Preferably, the follow-up member is a variable speed limit sign, and the variable speed limit sign can display a speed limit value.

Preferably, the follow-up component is a traffic guidance sign, and the traffic guidance sign comprises a sign board and a lamp bead array overlapped with the indication area on the sign board.

Preferably, each lamp bead in the lamp bead array is an LED lamp bead capable of emitting light in three colors, i.e., white, yellow, and red.

Preferably, the driving guidance sign is mounted on the slider through a rotary upright, the rotary upright comprises an upper column and a lower column, the lower column is connected with the slider, the upper column is connected with the driving guidance sign, and the upper column can freely rotate around a common axis relative to the lower column.

Preferably, the follow-up member is a road surface condition detection device capable of determining a wet skid of a road surface.

Preferably, the adjustable curve driving safety guidance system further comprises a visibility detection device, and the visibility detection device can detect the visibility of the area where the system is located.

Preferably, the adjustable curve driving safety guidance system further comprises a vehicle inspection device, and the vehicle inspection device can detect information of vehicles passing on the road.

The adjustable curve driving safety guidance system enables the position of the speed limit sign, the displayed speed limit value, the position, the turning angle and the visibility of the driving guidance sign, the position of the road condition detection device and the like to be adjusted according to the requirements, thereby meeting the requirement of managing and controlling passing vehicles under different road surface wet and slippery degrees and visibility conditions, providing convenient conditions for implementing various curve driving guidance control strategies and providing a hardware basis for intelligent traffic management and control of a road curve area.

Drawings

FIG. 1 is a schematic diagram illustrating the overall structure of an adjustable curve driving safety guidance system according to a preferred embodiment of the utility model;

FIG. 2 is a schematic configuration diagram of a slide rail and a slide block of the adjustable curve driving safety guidance system according to the preferred embodiment of the utility model;

3A-3D show schematic views of a three-color LED linear induction sign board of an adjustable curve driving safety induction system according to a preferred embodiment of the utility model;

FIG. 4 is a schematic diagram illustrating the connection relationship of the components of the adjustable curve driving safety guidance system according to the preferred embodiment of the utility model;

fig. 5 shows a schematic structural view of a rotary pillar of an adjustable curve driving safety inducing system according to a preferred embodiment of the present invention.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by persons skilled in the art that the present invention is not limited to the particular embodiments described herein, but that modifications and variations are possible in light of the above teachings.

Fig. 1 shows a schematic overall structure of an adjustable curve driving safety guidance system 10 according to a preferred embodiment of the utility model. As shown in fig. 1, the adjustable curve driving safety guidance system 10 includes: the device comprises a slide rail 11, a slide block 12, a variable speed limit sign 13, a road surface condition detection device 14, a visibility detection device 15, a driving guidance sign 16, a vehicle detector 17 and a controller 18.

The slide rail 11 is arranged outside the road along a curve, substantially parallel to the line shape of the road, the starting point may be arranged in the range of 50 to 300 meters before the starting point of the curve and the end point may be arranged in the range of 50 to 100 meters after the end point of the curve. The slide rail 11 may be constructed by attaching to a road side guardrail on the outer side of the road, and fixedly disposed on the outer side of the guardrail, or may be supported by other supporting devices specially used or shared with other devices.

The slider 12 is disposed on the slide rail 11 and can move along the slide rail 11 at least within a certain range. The adjustable curve driving safety guidance system 10 may include a plurality of sliding blocks 12, and the sliding blocks 12 are respectively provided with a variable speed limit sign 13, a road condition detection device 14 and a driving guidance sign 16, so as to drive these devices to move along the slide rail 11.

Fig. 2 shows a schematic structural diagram of the sliding rail 11 and the sliding block 12 in the adjustable curve driving safety guiding system 10 according to the preferred embodiment of the utility model. As shown in fig. 2, the adjustable curve driving safety guiding system 10 includes two slide rails 11 arranged in parallel one above the other, which are respectively attached to a roadside guardrail 22 by respective brackets 21. A slider 12 matched with each slide rail 11 is respectively arranged on each slide rail 11, and the slider 12 can slide in the extending direction of the slide rail 11 and can be positioned at a designated position according to requirements. In this embodiment, the slide rail 11 is a steel member having a cross-section similar to an "H" shaped structure, and the slider 12 has a structure similar to a laterally placed "concave" shape and is fitted on one side of the "H" shaped structure by its own structure. Brackets 23 are respectively arranged on the two sliders 12 corresponding to each other up and down, the two brackets 23 are connected with a vertical column 24, and the upper part of the vertical column 24 is used for mounting the variable speed-limiting sign 13. The double-sliding-rail structure disperses the weight of the parts carried by the double-sliding-rail structure to the joint of the two sliding rails and the sliding block, and is more favorable for ensuring the stability of the whole structure. Similarly, a bracket or rotating post 50 (see FIG. 5) may also be mounted to the bracket 23 of the slide 12 for mounting the pavement condition detection device 14 or the traffic-inducing indicia 16, respectively. It will be appreciated by those skilled in the art that the structure and cooperation of the slide rail 11 and the slider 12 are not limited to the specific embodiments described above.

The slide 12 further comprises driving means, positioning sensing means, communication means and control means. Driving means for driving the slider 12 to move relative to the sliding rail 11, position sensing means for determining the position of the slider 12 relative to the sliding rail 11 and generating slider position information accordingly, and communication means for enabling communication between the slider 12 and the controller 18 in a wireless and/or wired manner. The control device is in communication connection with the driving device, the positioning sensing device and the communication device, and is used for controlling the movement of the slide 12 based on the slide position information and the control instruction obtained through the communication device, so that the slide 12 can be moved to a specified position.

It will be understood by those skilled in the art that the position sensing device can determine the position and relative change of the slide 12 relative to the slide rail 11 by means of the cooperation between the mechanical parts, and can detect the position and relative change of the slide 12 on the slide rail 11 by using a common position/displacement sensor.

In a preferred embodiment of the present invention, the slide 12 further comprises a step motor, and the rotation of the step motor is converted into a linear motion via a transmission manner such as a gear, a rack, or a chain to drive the slide 12 to move along the slide rail 11, and the rotation angle of the step motor can also be used as a parameter indicating the position of the slide 12 relative to the slide rail 11.

As shown in fig. 2, a protective cover 25 may be further disposed above the sliding rail 11 to protect the sliding rail 11 and the sliding block 12 from adverse weather, and to prevent wind, rain, snow, sand and dust from contacting the sliding rail 11 and the sliding block 12 in a large area, so as to ensure normal operation of the system in adverse weather.

The overall structure of protection casing 25 is similar to the rectangle, sets up along slide rail 11, and the upper end can be established to domatic, does benefit to the drainage. Support posts may be provided at regular intervals at the lower end of the shield 25 to support the shield 25. The outer end of the protective cover 25 can be provided with an inspection door at intervals, so that technicians can maintain and inspect the sliding rail and the sliding block conveniently. At the same time, the protection cover 25 may provide a passage for the connection means to move in order not to interfere with the movement of the parts carried on the slider 11.

In the preferred embodiment of the present invention, the variable speed limit sign 13 is an LED variable speed limit sign board which is mounted on the slider 12 through a pillar 24 toward the upstream direction of the road to display the speed limit value of the road section ahead to the driver of the passing vehicle. Under the drive of the sliding block 12, the position of the variable speed limit sign 13 can be adjusted within the range of 50-300 meters before the starting point of the curve according to the requirement, so that the position requirement of the variable speed limit sign 13 under the conditions of different speed limit requirements and/or different visibility and wet skid is met.

The variable speed limit sign 13 further includes a communication device and a control device. The communication means is used to realize communication between the variable speed limit sign 13 and the controller 18 by wireless and/or wired means. The control device is in communication connection with the communication device and used for adjusting the speed limit value displayed on the LED variable speed limit sign board based on the control instruction obtained through the communication device.

In the preferred embodiment of the present invention, the road surface condition detecting device 14 is mounted on the slider 12 through a bracket, and can move in the range of 0 to 50 meters before the start point of the curve under the driving of the slider 12. Road surface condition detection device 14 includes a road surface condition detector that determines the degree of wet skid of the road surface in real time by detecting road surface conditions, such as dryness, wetness, water accumulation, frost, icing, snow, ice-water mixture, and information on water accumulation thickness, ice coating thickness, snow thickness, and the like.

Since the road surface state before the curve is under the same external environment as the curve, the road surface state before the curve can be regarded as the same, and the road surface state before the curve can represent the road surface state of the curve. The road surface condition monitoring device 14 is disposed before the start of a curve, and can avoid interference with the driving guidance sign 17 moving within the range of the curve.

Since the road surface condition detecting device 14 is movable with the slider 12, it is possible to detect the road surface condition at different positions, for example, to measure the wet skid of the road surface every certain distance, thereby avoiding the problem of inaccurate detection of a single fixed position.

The road surface condition detecting device 14 further includes a communication device for communicating with the controller 18 in a wireless and/or wired manner, thereby transmitting the detection result of the road surface wet-skid to the controller 18 and receiving instructions and data from the controller 18.

The visibility detection device 15 is used to detect the visibility of an area, and is usually installed on the road side, for example, on the inner side of a road guardrail, and may be a transmission visibility meter or a scattering visibility meter, and the visibility detection device 15 further includes a communication device for transmitting the visibility detection result to the controller 18 and receiving instructions and data from the controller 18 in a wireless and/or limited manner. Under the control of the controller 18, the visibility detecting device 15 can detect the visibility in the curve area at predetermined time intervals.

The adjustable curve driving safety guidance system 10 includes a plurality of driving guidance marks 16, and each driving guidance mark 16 is mounted on the sliding block 12 through a rotary column 50 (see fig. 5). Under the driving of the slider 12, the driving guidance mark 16 can move within the range from the curve starting point to the slide rail 11 ending point, and thus can be set at a proper position as required.

In a preferred embodiment of the present invention, the driving guide sign 16 may be a three-color LED linear guide sign board (see fig. 3A-3D), which includes an LED lamp bead array overlapped on the white arrow area of the sign board, as shown in fig. 3A-3D, in addition to having a layout conforming to the current national relevant specification standard. The sign board has a retroreflection function, and can reflect light irradiated on the sign board so as to remind a driver of a passing vehicle of paying attention to the change of the road line shape. Under the bad weather condition of low visibility, can light LED lamp pearl and improve the visuality of sign board. Each of the beads in the bead array is capable of emitting light in three colors, white, yellow, and red, so that different light emitting modes, for example, a dynamic effect of blinking with full white (fig. 3A), full yellow (fig. 3B), full red, three colors (fig. 3C), or two colors (fig. 3D) and/or at different frequencies and different duty ratios, can be realized under the control of the controller 18. Therefore, various functions of curve profile showing at night, line shape induction, bad weather warning, vehicle distance warning, tracking and the like can be supported through the lamp bead array.

The traffic-inducing indicator 16 further comprises communication means for communicating between the traffic-inducing indicator 16 and the controller 18 in a wireless and/or wired manner, and control means. The control device is in communication connection with the communication device and is used for controlling the opening and closing of the LED lamp beads, displaying colors, light emitting brightness, flashing frequency, duty ratio and the like based on a control instruction of the controller 18 received by the communication device so as to achieve corresponding light emitting modes and effects and further embody different control modes according to different weather conditions.

The vehicle detector 17 is used for detecting information of vehicles passing on the road, when the vehicles on the road pass through the section of the vehicle detector, the vehicle detector 17 detects information of vehicle types, running speeds, lanes and the like and sends detection results to the controller 18, and the information can be used as a basis for making various control strategies.

In a preferred embodiment of the present invention, the vehicle inspection device 17 may be disposed in one-to-one correspondence with the driving induction marks 16, for example, mounted on the upper column 51 of the rotary column 50 of each driving induction mark 16 (as shown in fig. 5). It will be understood by those skilled in the art that the vehicle detector 17 may be installed in other locations suitable for detecting passing vehicles, and need not be arranged in a one-to-one correspondence with the traffic inducing indicator 16.

The vehicle inspection device 17 further comprises a communication device and a control device, wherein the communication device is used for realizing communication between the vehicle inspection device 17 and the controller 18 in a wireless and/or wired mode so as to transmit detection information and control instructions. The control device is in communication connection with the communication device to control the operation of the vehicle inspection device 17 based on a control instruction of the controller 18 received via the communication device. For example, when a certain inspector 17 is not required for inspection, it may be turned off.

The car detector 17 may be an infrared car detector, a microwave car detector, or other type of vehicle detection device.

Fig. 5 shows a schematic structural diagram of the rotary pillar 50 of the adjustable curve driving safety inducing system 10 according to the preferred embodiment of the present invention. As shown in fig. 5, the rotary post 50 includes an upper post 51 and a lower post 52. The lower column 52 is fixedly connected with the sliding block 12 through the bracket 23, the upper column 51 is fixedly connected with the driving guidance sign 16, and the upper column 51 can freely rotate around the common axis of the lower column 52 and the driving guidance sign 16 and the vehicle detector 17 relative to the sliding block 12 within 360 degrees. The rotation of the upper column 51 relative to the lower column 52 can be achieved by a rotary drive 53. The rotation driving means 53 may be integrated with the lower column 52 or may be provided as a separate member between the upper column 51 and the lower column 52.

The rotary drive device 53 further includes a drive motor and a communication device that communicates with the controller 18 by wireless and/or wired means to transmit status information of the drive motor to the controller 18 and to receive commands and data from the controller 18. In a preferred embodiment of the present invention, the driving motor is a stepping motor which rotates by a corresponding number of steps and stops at a specific position according to the instruction of the controller 18, thereby rotating and stopping the upper column 51 at a specific angle with respect to the lower column 52.

Based on the sliding of the sliding block 12 and the rotation of the rotary column 50, the plurality of driving guide marks 16 can be positioned at suitable positions on the side of the curved road as required and directly face the driving direction of the vehicle, so that the driving guide marks 16 can be arranged at the most suitable positions and angles under different wet and slippery conditions of the road and different visibility conditions.

The number of driving inducing markings 16 required for a portion of a road curve may also vary in the management strategy for different wet road smoothness and visibility conditions. When a certain driving guidance sign or some driving guidance signs 16 are not needed, the driving guidance function can be released (as shown by the grey driving guidance signs in fig. 1) by moving the corresponding slide block 12 to the end of the curve and driving the upper column 51 to rotate by the rotation driving device 53 to enable the driving guidance signs 16 to face away from the driving direction and to be powered off.

The controller 18 may be mounted anywhere on the system 10 as desired. Fig. 4 is a schematic connection diagram of the components of the adjustable curve driving safety guiding system 10 according to the preferred embodiment of the present invention. As shown in fig. 4, the sliding block 12, the variable speed limit sign 13, the driving guidance sign 16, the rotary pillar 50, the road surface condition detection device 14, the visibility detection device 15, and the vehicle inspection device 17 are all in communication connection with the controller 18, so as to transmit detection data/results to the controller 18 and receive control commands and data from the controller 18. Those skilled in the art will appreciate that the present invention is not concerned with the improvement in the construction of the controller itself, the particular manner in which it effects control, or the control strategy it implements; the controller 18 may be implemented based on an existing general-purpose processor and/or a special-purpose processor, such as a Central Processing Unit (CPU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), a programmable logic circuit (PLD), a special-purpose instruction processor (ASIP), a Graphic Processor (GPU), a Physical Processor (PPU), and the like.

Each part of the adjustable curve driving safety guidance system 10 may be powered by a mains power line, or may be powered by other forms of power sources such as a storage battery, a solar panel, etc.

Through the foregoing description of the preferred embodiments of the present invention, those skilled in the art can understand that, in the adjustable curve driving safety guidance system of the present invention, the positions of the speed limit sign, the driving guidance sign, the road surface condition detection device, and the rotation angle of the driving guidance sign can be adjusted as needed, the speed limit value displayed by the speed limit sign, the opening and closing of the lamp bead on the driving guidance sign, the lighting color, the lighting brightness, the flashing frequency, the duty ratio, and the like can be changed as needed, and the visibility detection device, the road surface condition detection device, and the vehicle inspection device can acquire real-time visibility data, road surface wet-skid data, and vehicle operation data. Therefore, the adjustable curve driving safety guidance system provides convenient conditions for implementing various curve driving guidance control strategies under different road surface wet-skid and visibility conditions, and provides a hardware basis for intelligent traffic control in a road curve area.

It will be appreciated by persons skilled in the art that the embodiments described herein are not intended to be illustrative and not restrictive, and that the utility model is not limited to the specific embodiments described above.

Claims (10)

1. An adjustable curve driving safety guidance system is characterized in that the adjustable curve driving safety guidance system comprises at least one slide rail and at least one slide block,

the slide rail is parallel to the line shape of the road and is arranged at the outer side of the road,

the sliding block is arranged on the sliding rail, can move along the sliding rail and can be positioned on the sliding rail,

the slider is provided with a follow-up component which can move along with the slider.

2. The adjustable curve driving safety system according to claim 1, wherein the slider further comprises a driving device for driving the slider to move relative to the sliding rail and a positioning sensing device for determining the position of the slider relative to the sliding rail.

3. The adjustable curve driving safety system according to claim 1 or 2, wherein the at least one rail comprises a first rail and a second rail, the first rail being parallel to and disposed above the second rail, the slide comprises a first slide disposed on the first rail and a second slide disposed on the second rail, and the follower member is connected to both the first slide and the second slide.

4. The adjustable curve driving safety guidance system according to claim 1 or 2, wherein the follow-up component is a variable speed limit sign, and the variable speed limit sign can display a speed limit value.

5. The adjustable driving safety system for a curve according to claim 1 or 2, wherein the follow-up component is a driving guide sign, and the driving guide sign comprises a sign board and a lamp bead array overlapped with the indication area on the sign board.

6. The adjustable curve driving safety inducing system as claimed in claim 5, wherein each of the beads in the bead array is an LED bead capable of emitting light in three colors of white, yellow and red.

7. An adjustable curve driving safety system according to claim 5, wherein the driving guidance sign is mounted on the slide by a rotary post, the rotary post comprising an upper post and a lower post, the lower post being connected to the slide, the upper post being connected to the driving guidance sign, the upper post being free to rotate relative to the lower post about an axis common to both.

8. The adjustable curve driving safety system according to claim 1 or 2, wherein the follow-up member is a road condition detection device capable of determining a wet skid of a road.

9. The adjustable curve driving safety guidance system according to claim 1 or 2, further comprising a visibility detection device capable of detecting visibility of an area where the system is located.

10. The adjustable curve driving safety system according to claim 1 or 2, further comprising a vehicle detector capable of detecting information of vehicles passing on the road.

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