CN103117006A - Warning system for preventing secondary traffic accident on highways - Google Patents

Abstract

The invention discloses a warning system for preventing secondary traffic accidents on expressways, which includes a plurality of warning units arranged on the expressway to be warned from front to back along the driving direction and located behind the current accident location when a traffic accident occurs. The host computer that activates all the warning units of the alarm unit, and the multiple warning units are controlled by the host computer arranged in the remote monitoring center; the warning unit includes an alarm device, a trigger device that controls the activation of the alarm device, and a combination of the alarm device and the trigger device. The power supply equipment for power supply; the triggering and starting device includes a monitoring device for real-time monitoring of whether traffic accidents occur in the monitored road section to be warned, and a controller for analyzing the monitoring results of the monitoring device and controlling the alarm device according to the analysis results. Connect with the host computer. The invention has the advantages of reasonable design, convenient installation and arrangement, simple and convenient operation and good use effect, and can effectively reduce the occurrence rate of secondary traffic accidents on expressways.

Description

Warning System for Preventing Secondary Traffic Accidents on Expressway

technical field

The invention relates to a warning system, in particular to a warning system for preventing secondary traffic accidents on expressways.

Background technique

Secondary traffic accidents refer to re-accidents caused by failure to warn in time, improper warning measures, and unsatisfactory warning effects due to the negligence of the parties or rescuers on the basis of the original traffic accident.

Secondary traffic accidents are a common phenomenon of highway traffic accidents in my country at present, and they are also typical forms of serious traffic accidents such as mass death and mass injury and vehicle damage. Compared with the first accident, the second traffic accident often causes more damage and causes more serious personal and property losses, which will greatly increase the difficulty of further rescue work, so the second traffic accident is an accident that needs to be prevented as much as possible. Therefore, the prevention of secondary traffic accidents is of great practical significance to improve the traffic safety level of expressways in our country, meet the growing traffic and transportation requirements, and ensure the safety of people's lives and property.

Due to the high speed of vehicles on the expressway, in the section of the expressway where secondary accidents occur frequently, if the vehicle in front has a traffic accident, if the following vehicle is not warned in time, the subsequent vehicle will continue to drive at high speed without knowing the situation ahead. Therefore, because there is not enough reaction time, it is often too late to take emergency measures such as braking or avoiding when the vehicle is close to the accident scene. , causing huge personal injury and property damage. This phenomenon is more obvious especially in low-visibility conditions such as smog and slippery road conditions.

At present, when there is a traffic accident on the expressway, the following three warning measures are usually taken: one is that the driver and passengers actively call the police or the monitoring center finds the accident through the monitoring system, and the rescue management center responds according to the information provided by the alarming personnel or the monitoring system. It is released through the variable information board (VMS) set up on the expressway; the second is that the drivers and passengers turn on the double flashing warning lights, and place the vehicle-mounted folding warning signs behind the accident scene; the third is that after the patrol car discovers the accident, Take on-site emergency rescue and containment measures. In actual use, the above three accident warning measures all have certain defects, which are embodied in the following aspects: after the accident, the drivers and passengers were either killed or injured, panicked, and could not report to the police in time and accurately; the monitoring system has a certain degree of monitoring Angle and monitoring range, there are monitoring blind spots; the layout position of the variable information board is relatively fixed, and because of the high cost, the interval is often long, so the continuity is poor; the warning distance of the double flashing warning light and the vehicle-mounted folding warning sign is limited, and the vehicle-mounted folding The area of the type warning sign is small, the placement distance is relatively close, the height is low, and there is no continuity, and the warning effect is very poor; when the accident occurs, the probability that the patrol car happens to be at the scene of the accident is small and cannot warn in time. It can be seen that the above-mentioned existing accident warning measures all have defects such as untimely warning and poor warning effect.

To sum up, in view of the fact that when an accidental failure or traffic accident occurs to the vehicle ahead on the expressway, the drivers and passengers are generally in a state of panic, and often forget to send warning information to the following vehicles, fail to warn in time, have improper warning measures, and have poor warning effects, etc. This phenomenon leads to secondary traffic accidents caused by subsequent vehicles failing to take appropriate measures in time, especially in low visibility conditions such as smog, secondary traffic accidents on expressways are more frequent. Therefore, it is extremely important to take appropriate measures in time to give effective warnings to subsequent vehicles when unexpected breakdowns or traffic accidents occur in vehicles ahead on the expressway.

Contents of the invention

The technical problem to be solved by the present invention is to provide a warning system for preventing secondary traffic accidents on highways, which is reasonable in design, convenient in installation and layout, easy to use and operate, good in use effect, and can effectively reduce Incidence rate of secondary traffic accidents on expressways.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a warning system for preventing secondary traffic accidents on expressways, characterized in that: it includes a plurality of warnings arranged on the expressway to be warned from front to back along the driving direction. unit and when a traffic accident occurs, the host computer that starts all the warning units behind the current accident location, and a plurality of the warning units are controlled by the host computer arranged in the remote monitoring center, and a plurality of the warning units The expressway to be warned is divided into a plurality of road sections to be warned from front to back along the driving direction; Power supply equipment; the triggering and starting device includes a monitoring device for real-time monitoring of whether a traffic accident occurs in the monitored road section to be warned, and a controller for analyzing the monitoring results of the monitoring device and controlling the warning device according to the analysis results. Both the warning device and the monitoring device are connected with the controller, and the controller is connected with the upper computer, and the warning device and the controller are connected with the power supply equipment; the monitoring devices of a plurality of the warning units form a pair of the It is a monitoring system that needs to warn whether traffic accidents occur at various positions on the expressway.

The above-mentioned warning system for preventing secondary traffic accidents on expressways is characterized in that: the warning device includes a left warning device and/or a right warning device, and the left warning device is arranged on the left side of the road section to be warned, The right warning device is arranged on the right side of the section requiring warning, and both the left warning device and the right warning device are controlled by a controller.

The above-mentioned warning system for preventing secondary traffic accidents on expressways is characterized in that: the triggering and starting device also includes a plurality of manual start buttons one and/or a plurality of manual start buttons two, and the plurality of manual start buttons one is along the driving direction. Arranged from front to back on the anti-collision guardrail set on the left side of the road section to be warned, and a plurality of the manual start buttons 2 are arranged on the anti-collision barrier set on the right side of the road section to be warned from front to back along the driving direction. On the guardrail, a plurality of said manual start buttons one and a plurality of said manual start buttons two are connected with the controller.

The above-mentioned warning system for preventing secondary traffic accidents on expressways is characterized in that: the warning unit also includes a plurality of manual closing buttons one and/or a plurality of manual closing buttons two, and a plurality of manual closing buttons one are arranged along the driving direction by Arranged from front to back on the anti-collision guardrail set on the left side of the road section to be warned, and a plurality of manual closing buttons 2 are arranged on the anti-collision guardrail set on the right side of the road section to be warned from front to back along the driving direction Above, the plurality of manual closing buttons 1 and the plurality of manual closing buttons 2 are connected to the controller.

The above-mentioned warning system for preventing secondary traffic accidents on expressways is characterized in that: the left side warning device and the right side warning device both include alarm equipment, an automatic telescopic rod capable of stretching up and down and driving the automatic telescopic rod to stretch up and down The telescopic rod driving mechanism, the automatic telescopic rod and the telescopic rod driving mechanism are connected through the transmission mechanism; the telescopic rod driving mechanism and the alarm device are controlled by the controller and both are connected to the controller connected, the alarm device is installed on the top of the automatic telescopic rod; the alarm device and the telescopic rod drive mechanism are both connected to the power supply device.

The above-mentioned warning system for preventing secondary traffic accidents on expressways is characterized in that: the automatic telescopic rod is an inclined rod that gradually inclines to the inner side of the road section to be warned from bottom to top, and the distance between the inclined rod and the vertical direction is The included angle is 15°-30°, and the maximum length of the automatic telescopic rod is 2m-2.5m.

The above-mentioned warning system for preventing secondary traffic accidents on expressways is characterized in that: the monitoring device includes a plurality of left sound detection units arranged on the left side of the road section to be warned from front to back along the driving direction and a plurality of left sound detection units along the driving direction. A plurality of right sound detection units are arranged front to back on the right side of the section requiring warning, and the plurality of left sound detection units and the plurality of right sound detection units are all connected to the controller.

The above-mentioned warning system for preventing secondary traffic accidents on expressways is characterized in that: the left side warning device and the left side sound detection unit are arranged on the outside of the anti-collision guardrail set on the left side of the road section to be warned, and the right side warning Both the device and the sound detection unit on the right are arranged outside the anti-collision guardrail on the right side of the road section requiring warning.

The above-mentioned warning system for preventing secondary traffic accidents on expressways is characterized in that: the distance between the two adjacent sound detection units on the left side and the two sound detection units on the right side adjacent to each other is 20m ±5m, the distance between the two adjacent left alarm devices and the two adjacent right alarm devices is 50m±5m.

The above-mentioned warning system for preventing secondary traffic accidents on expressways is characterized in that: the sound detection unit on the left side and the sound detection unit on the right side both include a sound sensor, a signal conditioning circuit for processing the sound wave signal detected by the sound sensor, and An A/D converter connected to the signal conditioning circuit, the A/D converter connected to the controller.

Compared with the prior art, the present invention has the following advantages:

1. Simple structure, reasonable circuit design, convenient installation and layout, and low input cost.

2. The layout method is flexible, and it is mainly set up on the section of the expressway where secondary traffic accidents frequently occur.

3. The use effect is good. The sound generated when the front vehicle collides with the accident triggers the invention to automatically start and enter the working state, and sends out an audible and visual warning signal in an obvious way to warn the subsequent vehicles of the situation ahead, and sends an accident to the upper computer. Information, so that subsequent vehicle drivers drive carefully and take appropriate measures in time, so as to effectively prevent the occurrence of secondary traffic accidents.

4. It is mainly used to prevent secondary traffic accidents, and has the advantages of strong pertinence, high degree of automation, and good warning effect.

5. The starting method is flexible, mainly triggered by voice control, with a high degree of automation; at the same time, it can also be triggered manually. In actual use, through manual triggering on the spot, the warning is timely, which can effectively prevent the occurrence of serial rear-end collision accidents.

6. The warning unit has a high density, which can be coordinated and linked to control, and the warning continuity is strong. In actual use, once a traffic accident occurs, all warning units behind the accident point will automatically start synchronously to give sound and light alarm prompts.

7. Sound and light warnings are applied at the same time, and the warning effect is good.

8. When the alarm is not enabled, the alarm device is hidden behind the anti-collision barrier, which does not affect normal driving and road landscape.

9. It has high practical value and good warning effect. It is mainly used to reduce secondary traffic accidents on expressways in my country, especially rear-end collisions on expressways under low visibility conditions such as smog, and can effectively improve the level of expressway traffic safety.

To sum up, the present invention is reasonable in design, convenient in installation and layout, easy to use and operate, good in use effect, and can effectively reduce the occurrence rate of secondary traffic accidents on expressways.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the block diagram of circuit principle of the present invention.

Fig. 2 is a block diagram of the working principle of the sound and light alarm unit of the present invention.

Fig. 3 is a schematic block diagram of the circuits of the left sound detection unit and the right sound detection unit of the present invention.

Explanation of reference signs:

1—host computer; 2—alarm unit; 2-1—alarm device;

2-11—Left warning device; 2-12—Right warning device; 2-2—Trigger start device;

2-21—monitoring device; 2-211—left sound detection unit;

2-212—right sound detection unit; 2-22—controller;

2-23—Manual start button one;

2-24—Manual start button 2; 2-3—Power supply equipment;

2-31—distribution box; 2-32—voltage regulator;

2-4—Manual closing button 1; 2-5—Manual closing button 2; 3—Automatic telescopic rod;

4—Telescopic rod drive mechanism; 5—Speaker; 6—Warning lights;

7—sound sensor; 8—filter; 9—signal amplifier;

10—A/D converter.

Detailed ways

As shown in Fig. 1 and Fig. 2, the present invention includes a plurality of warning units 2 arranged on the expressway to be warned from front to back along the driving direction and all warning units 2 located behind the current accident location when a traffic accident occurs The upper computer 1 that starts, a plurality of said warning units 2 are all controlled by the upper computer 1 arranged in the remote monitoring center, and a plurality of said warning units 2 will be from front to back along the driving direction to warn the expressway Divided into several road sections requiring warning. The warning unit 2 includes a warning device 2-1, a triggering starting device 2-2 for starting and controlling the warning device 2-1, and a power supply device 2-3 for supplying power to the warning device 2-1 and the triggering starting device 2-2 . The triggering and starting device 2-2 includes a monitoring device 2-21 for real-time monitoring of whether a traffic accident occurs in the monitored road section to be warned, and analyzes the monitoring results of the monitoring device 2-21, and according to the analysis results, the alarm device 2-21 1 a controller 2-22 for controlling, the alarm device 2-1 and the monitoring device 2-21 are connected to the controller 2-22, and the controller 2-22 is connected to the upper computer 1, the Both the alarm device 2-1 and the controller 2-22 are connected to the power supply equipment 2-3. A plurality of monitoring devices 2-21 of the warning unit 2 form a monitoring system for monitoring whether traffic accidents occur at various positions on the expressway to be warned.

In this embodiment, the triggering device 2-2 also includes a plurality of manual start buttons 2-23 and/or a plurality of manual start buttons 2-24, a plurality of manual start buttons 2-23 along the The direction is arranged from front to back on the anti-collision guardrail set on the left side of the road section to be warned, and a plurality of manual start buttons 2-24 are arranged on the right side of the road section to be warned from front to back along the driving direction On the set anti-collision guardrail, a plurality of the first manual start buttons 2-23 and a plurality of second manual start buttons 2-24 are connected to the controller 2-22.

During actual layout and installation, the plurality of manual activation buttons 1 2-23 are evenly arranged, and the plurality of manual activation buttons 2 2-24 are evenly arranged. The distance between the two adjacent manual start buttons 2-23 and the two adjacent manual start buttons 2-24 is 20m±5m.

In this embodiment, a plurality of manual start buttons 2-23 are arranged on the anti-collision guardrail set on the left side of the road section to be warned from front to back along the driving direction, and two manual start buttons are adjacent to each other. The distance between the buttons one 2-23 is 20m; meanwhile, a plurality of the manual start buttons two 2-24 are arranged on the anti-collision guardrail set on the right side of the road section to be warned from front to back along the driving direction, And the distance between two adjacent manual start buttons 2-24 is 20m.

During actual use, it is also possible to arrange a manual start button-2-23 only on the anti-collision guardrail set on the left side of the road section to be warned, or to deploy a manual start button only on the anti-collision guardrail set on the right side of the road section to be warned. Start button two 2-24. In addition, according to specific needs, the distance between the two adjacent manual start buttons 2-23 and the two adjacent manual start buttons 2-24 can be adjusted accordingly.

At the same time, the warning unit 2 also includes a plurality of manual closing buttons 2-4 and/or a plurality of manual closing buttons 2-5, and a plurality of manual closing buttons 2-4 are arranged from front to back along the driving direction On the anti-collision guardrail set on the left side of the road section to be warned, a plurality of manual closing buttons 2-5 are arranged on the anti-collision guardrail set on the right side of the road section to be warned from front to back along the driving direction A plurality of the first manual closing buttons 2-4 and a plurality of the second manual closing buttons 2-5 are all connected to the controller 2-22.

When actually laying and installing, a plurality of said manual closing buttons 2-4 are evenly arranged, and a plurality of said manual closing buttons 2-5 are evenly arranged, and two said manual closing buttons 2-4 are adjacent to each other. The distance between the two manual closing buttons 2-5 adjacent to each other and between them is 20m±5m.

In this embodiment, a plurality of manual closing buttons 2-4 are arranged on the anti-collision guardrail set on the left side of the road section to be warned from front to back along the driving direction, and two manual closing buttons are adjacent to each other. The distance between the buttons one 2-4 is 20m; meanwhile, a plurality of the manual closing buttons two 2-5 are arranged on the anti-collision guardrail set on the right side of the section to be warned along the driving direction from front to back, And the distance between two adjacent manual closing buttons 2-5 is 20m.

During actual use, it is also possible to only arrange a manual closing button 2-4 on the anti-collision guardrail set on the left side of the road section to be warned, or to arrange a manual closing button on the anti-collision guardrail set on the right side of the road section to be warned. Close button two 2-5. In addition, according to specific needs, the distance between the two adjacent manual closing buttons 2-4 and the two adjacent manual closing buttons 2-5 can be adjusted accordingly.

In this embodiment, the power supply equipment 2-3 includes a power distribution box 2-31 and a voltage stabilizer 2-32 connected to the power distribution box 2-31, and the voltage stabilizer 2-32 is connected to the controller 2-31 22 is connected with warning device 2-1.

During actual installation, the warning device 2-1 includes a left warning device 2-11 and/or a right warning device 2-12, and the left warning device 2-11 is arranged on the left side of the section to be warned, The right warning device 2-12 is arranged on the right side of the section to be warned, and the left warning device 2-11 and the right warning device 2-12 are both controlled by a controller 2-22.

In this embodiment, the warning device 2-1 includes a left warning device 2-11 and a right warning device 2-12. In actual use, only the warning device 2-11 on the left side may be installed, or only the warning device 2-12 on the right side may be installed.

The left side warning device 2-11 and the right side warning device 2-12 both include an alarm device, an automatic telescopic rod 3 capable of stretching up and down, and a telescopic rod driving mechanism 4 that drives the automatic telescopic rod 3 to stretch up and down. The transmission connection between the automatic telescopic rod 3 and the telescopic rod driving mechanism 4 is carried out through a transmission mechanism. Both the telescopic rod driving mechanism 4 and the alarm device are controlled by the controller 2-22 and both are connected to the controller 2-22, and the alarm device is installed on the top of the automatic telescopic rod 3 . Both the alarm device and the telescopic rod driving mechanism 4 are connected to the power supply device 2-3.

In this embodiment, the alarm device is an audible and visual alarm unit, and the audible and visual alarm unit includes a loudspeaker 5 and a warning light 6, both of which are controlled by a controller 2-22 and both All are connected with the controller 2-22.

In actual use, the alarm device can also only use the speaker 5, or only use the warning light 6.

In this embodiment, the automatic telescopic rod 3 is an inclined rod that gradually inclines toward the inner side of the warning road section from bottom to top, and the angle between the inclined rod and the vertical direction is 15° to 30°, so The maximum length of the automatic telescopic rod 3 is 2m to 2.5m. The maximum length of the automatic telescopic rod 3 is the length when the automatic telescopic rod is stretched to the longest state.

During actual installation, the bottom of the automatic telescopic rod 3 is installed on the anti-collision guardrail provided on the left or right side of the section to be warned, and the automatic telescopic rod 3 is inclined from outside to inside.

The monitoring device 2-21 includes a plurality of left sound detection units 2-211 arranged on the left side of the warning road section from front to back along the driving direction and arranged on the warning road section from front to back along the driving direction. The plurality of right sound detection units 2-212 on the right side, the plurality of left sound detection units 2-211 and the plurality of right sound detection units 2-212 are all connected to the controller 2-22.

In this embodiment, the plurality of left sound detection units 2-211 are evenly arranged, and the plurality of right sound detection units 2-212 are evenly arranged.

During actual deployment and installation, the left side warning device 2-11 and the left side sound detection unit 2-211 are all arranged on the outside of the anti-collision guardrail set on the left side of the road section to be warned, and the right side warning device 2-12 and the The sound detection units 2-212 on the right are arranged outside the anti-collision guardrail on the right side of the road section requiring warning.

In this embodiment, the left alarm device 2-11 and the left sound detection unit 2-211 are installed on the anti-collision guardrail on the left side of the road section to be warned, and the right alarm device 2-12 and the right The side sound detection units 2-212 are all installed on the anti-collision guardrail set on the right side of the section requiring warning.

During actual installation, the distance between the two adjacent left sound detection units 2-211 and the two adjacent right sound detection units 2-212 is 20m±5m.

In this embodiment, the distance between the two adjacent left sound detection units 2-211 and the two adjacent right sound detection units 2-212 is 20m. In actual use, the distance between the two adjacent left sound detection units 2-211 and the two adjacent right sound detection units 2-212 can be adjusted accordingly according to specific needs. .

The controller 2-22 analyzes the frequencies of the sound wave signals detected by the plurality of left sound detection units 2-211 and the plurality of right sound detection units 2-212, and judges the sound wave signals according to the analysis results. The control chip that monitors whether a traffic accident occurs in the road section that needs to be warned. In this embodiment, the controller 2-22 is a single chip microcomputer. In actual use, the controller 2-22 may also use other types of control chips.

In this embodiment, when the frequency of the sound wave signal detected by the left sound detection unit 2-211 or the right sound detection unit 2-212 is within the range of 11kHz to 44kHz, it indicates that in the current state the monitored road section needs to be warned. A traffic accident has occurred; otherwise, it means that no traffic accident occurred in the monitored road section to be warned.

In this embodiment, the left sound detection unit 2-211 and the right sound detection unit 2-212 both include a sound sensor 7, a signal conditioning circuit for processing the sound wave signal detected by the sound sensor 7, and the The signal conditioning circuit is connected to the A/D converter 10, and the A/D converter 10 is connected to the controller 2-22.

The signal conditioning circuit includes a filter 8 and a signal amplifier 9 connected to the filter 8 , the sound sensor 7 is connected to the filter 8 , and the signal amplifier 9 is connected to an A/D converter 10 .

During actual layout and installation, multiple warning units 2 are evenly arranged, and the distance between two adjacent warning units 2 is 50m±5m. Correspondingly, the distance between two adjacent left warning devices 2-11 and between two adjacent right warning devices 2-12 is 50m±5m.

In this embodiment, the distance between the two adjacent warning units 2 is 50m; The distance between the side warning devices 2-12 is 50m. During specific installation, the spacing between the front and rear adjacent two warning units 2, the spacing between the front and rear adjacent two left warning devices 2-11, and the front and rear adjacent two warning units can also be adjusted according to actual needs. The spacing between the warning devices 2-12 on the right side is adjusted accordingly.

In this embodiment, all the left alarm devices 2-11 arranged on the left side of the expressway to be warned are arranged evenly, and all the sound detection units 2-211 on the left side arranged on the left side of the expressway to be warned are arranged evenly. Correspondingly, all the right-side warning devices 2-12 arranged on the right side of the expressway to be warned are evenly arranged, and all the right sound detection units 2-212 arranged on the right side of the expressway to be alerted are arranged evenly.

In summary, the present invention includes a plurality of warning units 2, and each warning unit 2 includes a warning device 2-1, a triggering device 2-2, and a power supply device 2-3. Connect to form coordinated linkage control.

During actual use, the present invention is usually arranged on highways where secondary traffic accidents are prone to occur, and two driving directions of expressways are all provided with a set of the present invention. During actual layout and installation, for any driving direction, a left side warning device 2-11 is arranged every 50m behind the anti-collision guardrail on the left side of the expressway to be warned, and the anti-collision guardrail on the right side of the expressway to be warned A right side warning device 2-12 is arranged every 50m behind the guardrail; the left side sound detection unit 2-211 and the right side sound detection unit 2-212 are encrypted, and the collision prevention on the left side of the expressway needs to be warned. A left side sound detection unit 2-211 is arranged for every 20m on the guardrail, and a right side sound detection unit 2-212 is arranged for every 20m on the anti-collision guardrail on the right side of the expressway to be warned; meanwhile, the manual start Button one 2-23 and manual start button two 2-24 are also densely laid out, wherein each 20m on the anti-collision guardrail on the left side of the expressway that needs to be warned is equipped with a manual start button one 2-23, and the need to warn the high-speed On the anti-collision guardrail on the right side of the highway, a manual start button 2-24 is arranged every 20m; Each 20m of the anti-collision barrier on the left side of the road is equipped with a manual closing button one 2-4, and each 20m of the anti-collision barrier on the right side of the expressway that needs to be warned is equipped with a manual closing button two 2-5.

During actual layout and installation, the monitoring devices of a plurality of warning units 2 form a monitoring system that monitors whether traffic accidents occur at each position on the expressway to be warned, that is to say, a plurality of warning units 2 The effective monitoring range of all monitoring devices in the system shall cover all lanes and parking belt areas of expressways that need to be warned, and monitor the sound of traffic accidents and quasi-traffic accident sounds in all lanes and parking belt areas of expressways that need to be warned. The adopted controller 2-22 is embedded with a vehicle collision sound detection device based on DSP (it is an existing vehicle collision sound detection device), which can judge and identify traffic accidents such as vehicle collisions and sudden braking, and quasi-traffic accidents. sound.

In this embodiment, the warning light 6 used is yellow single color, red single color, red and blue combined color or red and yellow combined color, and has multiple flashing frequencies, which can be adjusted during use.

The maximum length of the automatic telescopic rod 3 is set according to the width of the expressway median. During actual use, when a traffic accident is detected, the automatic telescopic rod 3 is automatically raised to a designated position, and considering the visibility of the warning light 6 and driving safety, the distance between the automatic telescopic rod 3 and the vertical direction The included angle is 15°～30°, which is set according to the greening condition of the expressway median and the traffic composition.

The working principle of the present invention is: when a traffic accident occurs on a road section that needs to be warned, the left sound detection unit 2-211 and/or the right sound detection unit 2-212 arranged on the road section that needs to be warned receive a traffic accident. The sound wave signal (mainly including the sound of vehicle collision or sudden braking, etc.) And be sent to the controller 2-22 that this section that needs warning is provided with, after described controller 2-22 is identified and judged to the sound wave signal that is transmitted, the telescoping rod driving mechanism 4 that this section that needs warning is provided with acousto-optic The alarm unit controls; at the same time, the controller 2-22 transmits a corresponding signal to the upper computer 1, and the upper computer 1 then synchronously controls all the warning units 2 behind the warning section where the traffic accident occurs to start an audible and visual alarm.

During actual use, the controller 2-22 removes vehicle engine noise, exhaust pipe noise, Background noise such as tire friction noise and other sound waves generated by non-traffic accidents such as whistle and advertising sound, etc., extract traffic accident and quasi-traffic accident sounds, and issue instructions to start all warning units 2 after the accident point, each warning unit 2 The automatic telescopic rod 3 all slowly rises to the set position, and simultaneously the loudspeaker 5 sends out voice information such as "accident ahead, slow down", and the warning light 6 flickers frequently. After the accident rescue managers have handled the accident, close the manual closing button one 2-4 or manual closing button two 2-5 that need to be warned on the road section where the traffic accident occurs. At the same time, the upper computer 1 controls all the warning units 2 at the rear of the road section where traffic accidents need to be warned to be closed synchronously, enters the next standby state, and the traffic operation returns to normal.

In addition, the present invention can also be used in a degraded manner. When the traffic accident is relatively minor, the sound is small, and the monitoring device 2-21 does not monitor the signal of the accident, the driver and rescue personnel can pass through the road section where the traffic accident occurred. The manual start button one 2-23 and/or the manual start button two 2-24 manually start the warning unit 2 arranged on the road section to be warned; afterward, control all warning units 2 behind the road section to be warned by the host computer 1 Both start audible and visual alarm. At the same time, the present invention can also be networked with the monitoring center, and the monitoring personnel can remotely start the warning unit 2 set on the road section requiring warning through the upper computer 1; at the same time, control all warnings behind the road section requiring warning through the upper computer 1 Unit 2 is activated for sound and light alarm. In addition, the present invention can also be used as a non-traffic accident warning, such as a traffic safety guarantee measure during daily maintenance such as road maintenance construction, greening and cleaning.

During actual use, the speaker 5 built-in voice adopted in the warning unit 2 includes various forms, which are selected according to specific conditions during use, mainly including "accident ahead, slow down", "maintenance ahead, slow down", Content such as "cleaning ahead, slow down" or various sound effects such as ambulance sounds and police sirens.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any way. All simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still belong to the technical aspects of the present invention. within the scope of protection of the scheme.

Claims (10)

1. prevention highway secondary traffic hazard caution system, it is characterized in that: comprise a plurality ofly following that the car direction is laid in the caution unit (2) that needs on the caution highway from front to back and when accident, all that are positioned at current accident occurrence positions rear being warned the host computer (1) that unit (2) start, a plurality of described cautions unit (2) are controlled by the host computer that is laid in remote monitoring center (1), and a plurality of described cautions unit (2) follow the car direction and from front to back the described caution highway that needs are divided into a plurality of highway sections that need to warn, described caution unit (2) comprises alarm device (2-1), alarm device (2-1) is started the triggering starter gear (2-2) of control and the power-supply unit (2-3) that alarm device (2-1) and triggering starter gear (2-2) are powered, described triggering starter gear (2-2) comprise to monitor and need in the caution highway section accident whether to carry out the monitoring device (2-21) of Real-Time Monitoring and the controller (2-22) that the monitoring result of monitoring device (2-21) is analyzed and alarm device (2-1) controlled according to analysis result, described alarm device (2-1) and monitoring device (2-21) all join with controller (2-22), and described controller (2-22) joins with host computer (1), and described alarm device (2-1) and controller (2-22) all join with power-supply unit (2-3), the monitoring device (2-21) of a plurality of described cautions unit (2) forms need warn the position monitoring system whether accident is monitored on highway to described.

2. according to prevention highway secondary traffic hazard caution system claimed in claim 1, it is characterized in that: described alarm device (2-1) comprises left side alarm device (2-11) and/or right side alarm device (2-12), described left side alarm device (2-11) is laid in the described left side that needs the caution highway section, described right side alarm device (2-12) is laid in the described right side that needs the caution highway section, and described left side alarm device (2-11) and right side alarm device (2-12) are controlled by controller (2-22).

3. according to the described prevention highway of claim 1 or 2 secondary traffic hazard caution system, it is characterized in that: described triggering starter gear (2-2) also comprises a plurality of manual actuation of button one (2-23) and/or a plurality of manual actuation of button two (2-24), a plurality of described manual actuation of button one (2-23) follow the car direction and are laid in from front to back described the need on the set anticollision barrier in left side, caution highway section, and a plurality of described manual actuation of button two (2-24) follow the car direction and are laid in from front to back described need the caution on the set anticollision barrier in right side, highway section, a plurality of described manual actuation of button one (2-23) and a plurality of described manual actuation of button two (2-24) are all joined with controller (2-22).

4. according to the described prevention highway of claim 1 or 2 secondary traffic hazard caution system, it is characterized in that: described caution unit (2) also comprises a plurality of manual-lock buttons one (2-4) and/or a plurality of manual-lock button two (2-5), a plurality of described manual-lock buttons one (2-4) follow the car direction and are laid in from front to back described the need on the set anticollision barrier in left side, caution highway section, a plurality of described manual-lock buttons two (2-5) follow the car direction and are laid in from front to back described need the caution on the set anticollision barrier in right side, highway section, a plurality of described manual-lock buttons one (2-4) and a plurality of described manual-lock buttons two (2-5) all join with controller (2-22).

5. according to prevention highway secondary traffic hazard caution system claimed in claim 2, it is characterized in that: the automatic telescopic link (3) that described left side alarm device (2-11) and right side alarm device (2-12) include panalarm, can stretch up and down and drive the expansion link driving mechanism (4) that described automatic telescopic link (3) is stretched up and down is in transmission connection by gear train between described automatic telescopic link (3) and expansion link driving mechanism (4); Described expansion link driving mechanism (4) and described panalarm are controlled by controller (2-22) and are both all joined with controller (2-22), and described panalarm is arranged on automatic telescopic link (3) top; Described panalarm and expansion link driving mechanism (4) all join with power-supply unit (2-3).

6. according to prevention highway secondary traffic hazard caution system claimed in claim 5, it is characterized in that: described automatic telescopic link (3) is for warning to described the tilting bar that the inboard, highway section tilts gradually from the bottom to top, and the angle between described tilting bar and vertical direction is 15 °～30 °, and the maximum length of described automatic telescopic link (3) is 2m～2.5m.

7. according to prevention highway secondary traffic hazard caution system claimed in claim 2, it is characterized in that: described monitoring device (2-21) comprises that following the car direction is laid in from front to back and describedly needs the sound detection unit, a plurality of left side (2-211) in left side, caution highway section and follow the car direction to be laid in from front to back the described sound detection unit, a plurality of right side (2-212) that needs warn the right side, highway section, and a plurality of sound detection unit, described left side (2-211) and a plurality of sound detection unit, described right side (2-212) all join with controller (2-22).

8. according to prevention highway secondary traffic hazard caution system claimed in claim 7, it is characterized in that: described left side alarm device (2-11) and sound detection unit, left side (2-211) all are laid in the described outside that needs the set anticollision barrier in left side, caution highway section, and right side alarm device (2-12) and sound detection unit, right side (2-212) all are laid in the described outside that needs warn the set anticollision barrier in right side, highway section.

9. according to prevention highway secondary traffic hazard caution system claimed in claim 7, it is characterized in that: between adjacent two sound detection unit, described left side, front and back (2-211) and the spacing between adjacent two sound detection unit, described right side, front and back (2-212) be 20m ± 5m, between adjacent two the described left side alarm devices in front and back (2-11) and the spacing between adjacent two the described right side alarm devices in front and back (2-12) be 50m ± 5m.

10. according to prevention highway secondary traffic hazard caution system claimed in claim 7, it is characterized in that: sound detection unit, described left side (2-211) and sound detection unit, right side (2-212) include sound transducer (7), the signal conditioning circuit that described sound transducer (7) acoustic signals that detects is processed and the A/D converter (10) that joins with described signal conditioning circuit, and described A/D converter (10) joins with controller (2-22).

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