Expressway guardrail monitoring and early warning system based on vibration perception

Abstract

An expressway guardrail monitoring and early warning system based on vibration sensing comprises a control center and a guardrail, the guardrail comprises a guardrail body, a guardrail base and a wave-shaped guardrail plate, the guardrail body is fixed to the guardrail base, the wave-shaped guardrail plate is arranged on the inner side of the guardrail body, and the wave-shaped guardrail plate is fixed to the guardrail base. The wave-shaped guardrail is characterized by further comprising a vibration optical fiber, an optical fiber host, an intelligent ball machine and an audible and visual alarm, the vibration optical fiber is fixed to a notch in the inner side of the wave-shaped guardrail plate, the optical fiber host and the intelligent ball machine are arranged on the road side, the audible and visual alarm is arranged above the guardrail body, the vibration optical fiber is communicated with the optical fiber host, and the optical fiber host is communicated with the audible and visual alarm. The vibration host is in wireless communication with the control center, and the control center is in wireless communication with the audible and visual alarm and is in bidirectional wireless communication with the intelligent ball machine. The system is based on an optical fiber vibration sensor, and is combined with an intelligent ball machine and an audible and visual alarm to realize early monitoring and early warning of highway accidents.

Description

TECHNICAL FIELD

[0001] The utility model belongs to intelligent traffic control system technical field, concretely relates to a highway guardrail monitoring and early warning system based on vibration perception. BACKGROUND

[0002] In recent years, the highway congestion intensifies, and the accidents often occur, and the occurrence of these accidents highlights the importance of strengthening the safety of highway bridges and other infrastructures. The highway guardrail is an important traffic safety facility, and is mainly used for preventing the out-of-control vehicle from colliding with other obstacles after the natural disasters and traffic accidents, and the guardrail will produce great vibration and deformation. Through the guardrail monitoring, the occurrence of the traffic accident can be effectively perceived, the rapid release of the dangerous state can be realized in combination with the early warning system, the secondary accidents can be effectively prevented, and the safety of people's life and property is ensured, therefore, it is necessary to develop a kind of highway guardrail monitoring and early warning system, and perfect the highway safety early warning facility. The existing highway monitoring and early warning system mainly has the following problems: (1) most of them need to be combined with video detectors, variable information bulletin boards and other facilities, and the cost is higher; (2) if the optical fiber sensor is used for monitoring, it is mainly used for being buried in the road, and is used for monitoring the deformation, settlement and crack of the highway, and the construction is relatively inconvenient.

[0003] In recent years, the development of the Internet of Things technology provides a new way for solving this problem. Through the combination of the Internet of Things technology and the traditional highway guardrail system, the early warning and rapid response to the natural disasters and traffic accidents can be realized, and the emergency disposal capacity can be improved. The optical fiber sensor has the advantages of good durability, high sensitivity and low cost, and is combined with the traditional guardrail system, vibration monitoring is realized, early warning information is released through the sound-light alarm, early monitoring and early warning of the highway accident are realized, and the emergency disposal capacity is improved. SUMMARY

[0004] The utility model aims at overcoming the insufficient in prior art, and provides a highway guardrail monitoring and early warning system based on vibration perception, which is based on the optical fiber vibration sensor, combined with the intelligent ball machine and the sound-light alarm, and realizes the early monitoring and early warning of the highway accident.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a highway guardrail monitoring and early warning system based on vibration sensing, control center and guardrail, the guardrail includes guardrail main body, guardrail base and wave guardrail board, the guardrail base is fixed with the guardrail main body, the wave guardrail board is arranged in the inside of guardrail main body, characterized by: still include vibration fiber, fiber host, intelligent ball machine and audible -visual alarm, the vibration fiber is fixed in the inside groove of wave guardrail board, the fiber host and intelligent ball machine are arranged in the road side, the audible -visual alarm is arranged above the guardrail main body, the vibration fiber is linked with fiber host, the vibration host is wirelessly communicated with the control center, the control center is wirelessly communicated with the audible -visual alarm, and is bidirectionally wirelessly communicated with the intelligent ball machine.

[0006] Preferably, the vibration fiber is provided with a clamp every two meters, and is fixed in the inside groove of the wave guardrail board by anchoring or welding.

[0007] Preferably, the vibration fiber is fixed in the inside groove of the wave guardrail board by bonding at the bonding point.

[0008] Preferably, the audible -visual alarm is composed of a horn and an alarm lamp, and a group of the audible -visual alarm is arranged on the guardrail main body every 200 meters.

[0009] Preferably, the fiber host is arranged on the road side at a distance of 50km-70km.

[0010] Preferably, the intelligent ball machine is arranged on the high point of the road side, and one intelligent ball machine is arranged every 300-500 meters along the line.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、The vibration fiber arranged in the utility model is compared with video and radar monitoring equipment, and the average cost of long-distance road section is lower, so that full road section monitoring coverage can be realized at lower construction cost.

[0013] 2、The vibration fiber is installed in the inside groove of the wave guardrail board in the utility model, and installation and maintenance means are more convenient.

[0014] 3、The utility model can accurately position the accident area through the vibration signal generated by the vibration fiber at the accident site.

[0015] 4、The utility model can realize real-time early warning to upstream vehicles through the audible -visual alarm, and reduce the further deterioration of the accident.

[0016] 5、The linkage intelligent ball machine can image snapshot the accident position, and can be used for reviewing and subsequent investigation of the accident. DRAWINGS

[0017] Figure 1 The system structural diagram of the utility model;

[0018] Figure 2 The vibration optical fiber installation schematic diagram of the utility model;

[0019] Figure 3 The sound-light alarm installation schematic diagram of the utility model.

[0020] In the drawing: 1-vibration optical fiber; 2-sound-light alarm; 3-optical fiber host computer; 4-intelligent ball machine; 5-control center; 6-loudspeaker; 7-alarm lamp; 8-waved guardrail plate; 9-guardrail main body; 10-guardrail base; 11-optical fiber bonding point; 12-fixing clamp. DETAILED DESCRIPTION

[0021] In order to make the technical means, purpose and effect of the utility model patent easy to understand, the following further describes how the utility model is implemented in combination with the drawings and specific embodiments.

[0022] As shown in Figure 1 , 2 The utility model provides a highway guardrail monitoring and early warning system based on vibration sensing, which comprises a control center 5, a guardrail, a vibration optical fiber 1, an optical fiber host computer 3, an intelligent ball machine 4 and a sound-light alarm 2, the guardrail is an existing highway waved guardrail, comprising a guardrail main body 9, a guardrail base 10 and a waved guardrail plate 9, the guardrail base is fixed with the guardrail main body, the waved guardrail plate is arranged on the inner side of the guardrail main body, the vibration optical fiber is fixed in the inner side groove of the waved guardrail plate, the optical fiber host computer and the intelligent ball machine are arranged on the roadside, and the sound-light alarm is arranged above the guardrail main body.

[0023] The vibration optical fiber can acutely detect the intensity position change information of weak reflected light, accurately position the disturbance occurrence position and identify specific events, and has the advantages of strong environmental adaptability, anti-electromagnetic interference, detection sensitivity, long monitoring distance, accurate positioning and corrosion resistance.

[0024] The sound-light alarm receives the instruction of the control center, publishes early warning information, comprises two parts of flashing light and loudspeaker, is arranged on the upper side of the guardrail, and is arranged every 200m along the line.

[0025] The optical fiber host computer is arranged on the roadside, is divided into two parts of a processor and a server, is arranged at a distance of 50km-70km, and is used for processing optical signals and electrical signals.

[0026] The intelligent ball machine is arranged at a high point of a roadside, and one is arranged every 300-500 meters along a line according to a monitoring range and precision of the intelligent ball machine, and the ball machine can be turned to a specific point after abnormal information of the optical fiber is sensed. The focal length can be changed according to a position of occurrence to view detailed information of an event, evidence of an accident is collected, and global monitoring coverage of a collision warning of a road section guardrail, accurate positioning of an accident and review and tracing are realized.

[0027] The utility model uses the full length 50km expressway as an example, one optical fiber host 3 is arranged in single direction, vibration optical fiber 1 is fixed at guardrail, the length is 50km, sound-light alarm 2 (including two parts of loudspeaker 6 and alarm lamp 7) is arranged above guardrail main part 9, a group is arranged every 200m, and 250 are arranged in total, and the installation mode is as shown in Figure 3 The opposite lane should also be arranged correspondingly, and the arrangement mode is the same.

[0028] Guardrail main part 9 is fixed on guardrail base 10, wave-shaped guardrail plate 8 is arranged on the inner side of guardrail main part 9, vibration optical fiber 1 is fixed in the inner groove of wave-shaped guardrail plate 8, and a clamp 12 is arranged every 2m behind the monitoring point, the optical fiber is fixed through anchoring or welding, the single optical cable is linearly arranged, power supply is not needed, the project is simple, and maintenance is convenient.

[0029] The working process of the utility model is that the optical fiber host 3 receives information and position information sent by vibration optical fiber 1, signal processing and analysis are carried out, whether the alarm threshold is reached is judged, if the alarm threshold is reached, the position information is transmitted to the control center 5 through wireless network, the control center controls the intelligent ball machine 4 closest to the abnormal position according to the position of occurrence, and the ball machine is used to view detailed information of an event, and evidence of an accident is collected. Meanwhile, early warning information is transmitted to the two sound-light alarm 2 in the range of 500m upstream of the abnormal position, sound-light information is issued, real-time response and early warning of an accident are realized, and the control center transmits information to the alarm to close the alarm when the danger is removed.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A highway guardrail monitoring and early warning system based on vibration sensing, comprising a control center and a guardrail, wherein the guardrail comprises a guardrail body, a guardrail base, and a corrugated guardrail plate. The guardrail body is fixed to the guardrail base, and the corrugated guardrail plate is disposed inside the guardrail body. The system is characterized by: It also includes a vibration optical fiber, a fiber optic host, an intelligent dome camera and an audible and visual alarm. The vibration optical fiber is fixed in the inner groove of the corrugated guardrail plate, the fiber optic host and the intelligent dome camera are arranged on the side of the road, the audible and visual alarm is arranged above the guardrail body, the vibration optical fiber is connected to the fiber optic host, the vibration host wirelessly communicates with the control center, the control center wirelessly communicates with the audible and visual alarm, and has two-way wireless communication with the intelligent dome camera.

2. The highway guardrail monitoring and early warning system based on vibration sensing according to claim 1 is characterized by: A clamp is provided every two meters of the vibrating optical fiber and is fixed to the inner groove of the corrugated guardrail plate by anchoring or welding.

3. The highway guardrail monitoring and early warning system based on vibration sensing according to claim 1 is characterized by: The vibrating optical fiber is fixed to the inner notch of the corrugated guardrail plate at the bonding point by bonding.

4. The highway guardrail monitoring and early warning system based on vibration sensing according to claim 1 is characterized by: The sound and light alarm consists of two parts: a horn and an alarm light, and a group of them are arranged on the guardrail body at intervals of 200 meters.

5. The highway guardrail monitoring and early warning system based on vibration sensing according to claim 1 is characterized by: The optical fiber hosts are arranged on the road side at intervals of 50km-70km.

6. The highway guardrail monitoring and early warning system based on vibration sensing according to claim 1 is characterized by: The smart ball cameras are set up at high points on the roadside, and one is deployed every 300-500 meters along the line.

Images