CN221927296U - An accident warning device for highway tunnel - Google Patents

Abstract

The utility model relates to the technical field of accident early warning, and provides an accident early warning device for a highway tunnel, which comprises a lane indicator, a power supply, a relay, a PLC (programmable logic controller) control cabinet, an alternating current contactor and an early warning device which is connected with the PLC control cabinet through the alternating current contactor to realize linkage with the lane indicator; according to the utility model, the intelligent traffic control system is connected to the PLC control cabinet through the alternating current contactor to realize linkage with the lane indicator, when the lane indicator displays a red fork state, the alternating current contactor is controlled by the relay to realize the early warning device and the power supply passage, and the word of closing the lane is displayed through the warning display to inform a driver of an accident in front, so that the driver can more obviously remind the passing vehicle to pay attention to avoid, and the driver can know the lane closing information according to the word, so that the lane is accelerated in advance to avoid the lane change, the occurrence of secondary accidents is avoided, and the problem that the red fork and green arrow of the tunnel mouth is easy to ignore in the prior art to remind the lane change is solved.

Description

An accident warning device for highway tunnel

Technical Field

The utility model relates to the technical field of accident warning, and in particular to an accident warning device for a highway tunnel.

Background Art

Highway tunnels are passages for automobile transportation. With the development of social economy and production, a large number of highways have emerged, which put forward higher standards for road construction technology, requiring straight lines, gentle slopes, and wide roads. Therefore, when roads pass through mountainous areas, the previous winding mountain detours are mostly changed to tunnel plans. Since the visible light in the tunnel is weak, when an accident occurs in the tunnel, it is necessary to use early warning devices outside the tunnel entrance to warn in advance to reduce the occurrence of secondary accidents.

At present, the temporary closure of lanes in tunnels only relies on the red cross and green arrow reminders for lane change. When an accident occurs in the tunnel or an emergency event occupies the lane, some drivers and passengers are likely to ignore the red cross and green arrow reminders for lane change at the tunnel entrance while driving. After entering the tunnel, secondary accidents are very likely to occur due to the influence of vision and other factors.

Utility Model Content

The utility model provides an accident warning device for a highway tunnel, which solves the problem in the prior art that the red cross and green arrow at the tunnel entrance reminding lane change is easily ignored.

The technical scheme of the utility model is as follows: an accident warning device for a highway tunnel, comprising a lane indicator, a power supply, a relay, a PLC control cabinet, an AC contactor, and a warning device connected to the PLC control cabinet through the AC contactor to realize linkage with the lane indicator, the warning device comprising a warning display installed on the top of the highway tunnel entrance and a plurality of sound and light warning devices equidistantly distributed on the vault in the highway tunnel and arranged corresponding to the lanes, the sound and light warning device comprising a graphic projector capable of projecting a front accident warning graphic or text on the lane road surface according to the distance from the accident occurrence point in the tunnel, a light projector capable of projecting different light on the lane road line according to the accident distance, a flashing light capable of lighting and flashing according to the accident distance, and a voice alarm capable of giving a voice prompt according to the accident distance.

Preferably, when the lane indicator displays a red cross state, the AC contactor is controlled by a relay to realize the early warning device and the power supply path, and the words "lane closed" are displayed on the warning display.

Preferably, the sound and light warning device is divided into a yellow warning section, a red warning section, and a dark red warning section according to the distance from the accident occurrence point.

Preferably, the yellow warning section is more than 100m away from the accident site, the red warning section is 50-100m away from the accident site, and the dark red warning section is 0-50m away from the accident site.

Preferably, the working state of the graphic projector in the yellow warning section is to continuously project yellow forward accident warning graphics or text on the lane road surface, the working state of the graphic projector in the red warning section is to continuously project red forward accident warning graphics or text on the lane road surface, and the working state of the graphic projector in the dark red warning section is to intermittently project dark red forward accident warning graphics or text on the lane road surface.

Preferably, the working state of the light projector in the yellow warning section is to continuously project yellow light on the lane road line, the working state of the light projector in the red warning section is to continuously project red light on the lane road line, and the working state of the light projector in the dark red warning section is to intermittently project dark red light on the lane road line.

Preferably, the working state of the flashing light in the yellow warning section is to emit yellow light continuously above the lane, the working state of the flashing light in the red warning section is to emit red light continuously above the lane, and the working state of the flashing light in the dark red warning section is to emit dark red light intermittently above the lane.

Preferably, the voice alarm announces the distance to the accident occurrence point in sequence when passing through the yellow warning section, the red warning section, and the dark red warning section.

The beneficial effects of the utility model are:

1. In the utility model, the lane indicator is linked to the PLC control cabinet through an AC contactor. When the lane indicator shows a red cross state, the AC contactor is controlled by a relay to realize the early warning device and the power supply path, and the words "lane closed" are displayed on the warning display to inform the driver of the accident ahead, and to remind passing vehicles to avoid it more conspicuously. The driver can understand the lane closure information according to the words, so as to slow down and change lanes in advance to avoid secondary accidents, and solve the problem of the red cross and green arrow reminder of lane change at the tunnel entrance that is easy to ignore in the prior art;

2. The graphic projector, light projector, flashing light, and voice alarm in the utility model can work together according to the distance to the accident site, and remind the driver to slow down and brake slowly in advance in a "shallow to deep" segmented manner. Compared with the prior art, the utility model can guide the driver to brake the vehicle in an orderly manner while reminding the driver of the accident ahead, so as to ensure the stable parking of the vehicle and further reduce the occurrence of secondary accidents.

BRIEF DESCRIPTION OF THE DRAWINGS

The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

FIG1 is a circuit diagram of a linkage between an accident warning device and a lane indicator for a highway tunnel proposed by the utility model;

FIG2 is a schematic structural diagram of an accident warning device for a highway tunnel proposed by the present invention;

FIG3 is a schematic diagram of the working state of an accident warning device for a highway tunnel proposed by the present invention in different warning sections;

In the figure: 01, early warning device; 011, warning display; 012, sound and light warning device; 0121, graphic projector; 0122, light projector; 0123, flashing light; 0124, voice alarm.

DETAILED DESCRIPTION

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

Please refer to Figures 1 and 2. The utility model provides a technical solution: an accident warning device for a highway tunnel, including a lane indicator, a power supply, a relay, a PLC control cabinet, an AC contactor, and a warning device 01 connected to the PLC control cabinet through the AC contactor to achieve linkage with the lane indicator. The warning device 01 is connected to the PLC control cabinet through the AC contactor to achieve linkage with the lane indicator. When the lane indicator displays a red cross state, the AC contactor is controlled by the relay to realize the path between the warning device 01 and the power supply, and the words "lane closed" are displayed through the warning display 011 to inform the driver that an accident has occurred ahead.

Please refer to Figure 2. The technical point of the utility model is that the early warning device 01 includes a warning display 011 installed on the top of the highway tunnel entrance and a number of sound and light warning devices 012 that are equidistantly distributed on the arch in the highway tunnel and set corresponding to the lanes. The sound and light warning device 012 includes a graphic projector 0121 that can project a front accident warning graphic or text on the lane road surface according to the distance from the accident point in the tunnel, a light projector 0122 that can project different lights on the lane road line according to the accident distance, a flashing light 0123 that can light up and flash according to the accident distance, and a voice alarm 0124 that can give a voice prompt according to the accident distance.

Please refer to Figure 3, in which the sound and light alarm 012 is divided into a yellow warning section, a red warning section, and a dark red warning section according to the distance from the accident point. The yellow warning section is more than 100m away from the accident point, the red warning section is 50-100m away from the accident point, and the dark red warning section is 0-50m away from the accident point.

The working state of the graphic projector 0121 in the yellow warning section is to continuously project yellow forward accident warning graphics or text on the lane road surface; the working state of the graphic projector 0121 in the red warning section is to continuously project red forward accident warning graphics or text on the lane road surface; the working state of the graphic projector 0121 in the dark red warning section is to intermittently project dark red forward accident warning graphics or text on the lane road surface.

The working state of the light projector 0122 in the yellow warning section is to continuously project yellow light on the lane road line. The working state of the light projector 0122 in the red warning section is to continuously project red light on the lane road line. The working state of the light projector 0122 in the dark red warning section is to intermittently project dark red light on the lane road line.

The working state of the flashing light 0123 in the yellow warning section is to emit yellow light continuously above the lane. The working state of the flashing light 0123 in the red warning section is to emit red light continuously above the lane. The working state of the flashing light 0123 in the dark red warning section is to emit dark red light intermittently above the lane.

The voice alarm 0124 will voice-broadcast the distance to the accident occurrence point in sequence when passing through the yellow warning section, the red warning section, and the dark red warning section.

The working principle and use process of the utility model are as follows: the utility model is connected to the PLC control cabinet through an AC contactor to realize linkage with the lane indicator. When the lane indicator shows a red cross state, the AC contactor is controlled by a relay to realize the early warning device 01 and the power supply path, and the words "lane closed" are displayed through the warning display 011 to inform the driver of the accident ahead;

As shown in FIG3 , when a vehicle enters a tunnel and is on a yellow warning road section, a graphic projector 0121 continuously projects a yellow front accident warning graphic or text on the road section, a light projector 0122 continuously projects yellow light on both sides of the road section, and a flashing light 0123 continuously emits yellow light above the lane, and a voice alarm 0124 broadcasts a voice to remind the driver to slow down;

When a vehicle enters a tunnel and is on a red warning road section, the graphic projector 0121 continuously projects a red front accident warning graphic or text on the road section, the light projector 0122 continuously projects red light on both sides of the road section, and the flashing light 0123 continuously emits red light above the lane, and the voice alarm 0124 broadcasts a voice to further remind the driver to stop driving;

When the vehicle enters a tunnel and is on a dark red warning section, the graphic projector 0121 intermittently projects red forward accident warning graphics or text on the section of road, the light projector 0122 intermittently projects red light on both sides of the road, and the flashing light 0123 intermittently emits red light above the lane, and the voice alarm 0124 broadcasts a voice to remind the driver to brake immediately.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. An accident warning device for a highway tunnel, comprising a lane indicator, a power supply, a relay, a PLC control cabinet, an AC contactor, and a warning device (01) connected to the PLC control cabinet through the AC contactor to realize linkage with the lane indicator, characterized in that the warning device (01) comprises a warning display (011) installed on the top of the highway tunnel entrance and a plurality of sound and light warning devices (012) equidistantly distributed on the vault in the highway tunnel and arranged corresponding to the lanes, the sound and light warning device (012) comprising a graphic projector (0121) capable of projecting a front accident warning graphic or text on the road surface of the lane according to the distance from the accident point in the tunnel, a light projector (0122) capable of projecting different light on the road line of the lane according to the accident distance, a flashing light (0123) capable of lighting and flashing according to the accident distance, and a voice alarm (0124) capable of giving a voice prompt according to the accident distance. 2. An accident warning device for a highway tunnel according to claim 1, characterized in that when the lane indicator shows a red cross state, the AC contactor is controlled by a relay to realize the warning device (01) and the power supply path, and the words "lane closed" are displayed through the warning display (011). 3. An accident warning device for a highway tunnel according to claim 1, characterized in that the sound and light warning device (012) is divided into a yellow warning section, a red warning section, and a dark red warning section according to the distance from the accident occurrence point. 4. An accident warning device for a highway tunnel according to claim 3, characterized in that the yellow warning section is more than 100m away from the accident point, the red warning section is 50-100m away from the accident point, and the dark red warning section is 0-50m away from the accident point. 5. An accident warning device for a highway tunnel according to claim 3, characterized in that the working state of the graphic projector (0121) in a yellow warning section is to continuously project a yellow front accident warning graphic or text on the lane road surface, the working state of the graphic projector (0121) in a red warning section is to continuously project a red front accident warning graphic or text on the lane road surface, and the working state of the graphic projector (0121) in a dark red warning section is to intermittently project a dark red front accident warning graphic or text on the lane road surface. 6. An accident warning device for a highway tunnel according to claim 3, characterized in that the working state of the light projector (0122) in the yellow warning section is to continuously project yellow light on the lane road line, the working state of the light projector (0122) in the red warning section is to continuously project red light on the lane road line, and the working state of the light projector (0122) in the dark red warning section is to intermittently project dark red light on the lane road line. 7. An accident warning device for a highway tunnel according to claim 3, characterized in that the working state of the flashing light (0123) in the yellow warning section is to continuously emit yellow light above the lane, the working state of the flashing light (0123) in the red warning section is to continuously emit red light above the lane, and the working state of the flashing light (0123) in the dark red warning section is to intermittently emit dark red light above the lane. 8. An accident warning device for a highway tunnel according to claim 3, characterized in that the voice alarm (0124) voice-broadcasts the distance to the accident point in sequence when passing through a yellow warning section, a red warning section, and a dark red warning section.