阅读说明：本技术 一种基于电子光幕的桥涵防护系统 (Bridge and culvert protection system based on electronic light curtain ) 是由 王军锋 尧丰 于 2021-08-20 设计创作，主要内容包括：本发明公开了一种基于电子光幕的桥涵防护系统,包括：设置在桥涵入口处的车辆高度检测设备,用于检测将驶入桥涵的车辆是否超出预设高度并输出超高信号；与车辆高度检测设备连接的控制器,根据超高信号输出报警信号,且当超出预设高度的车辆驶入桥涵时输出图像采集指令；与控制器连接的电子光幕生成设备,设置在桥涵入口处,接收报警信号后,在超出预设高度的车辆前方生成电子光幕,当超出预设高度的车辆驶入桥涵时生成并发送车辆驶入信号；采集超出预设高度的车辆的车辆信息及桥涵图像的图像采集设备。本发明对将输入桥涵的超高车辆进行预警,当车辆驶入桥涵时,对违章驶入桥涵的超高车辆摄录抓拍取证,提高桥涵及其防护设施的安全管理水平。(The invention discloses a bridge and culvert protection system based on an electronic light curtain, which comprises: the vehicle height detection equipment is arranged at an entrance of the bridge and culvert and used for detecting whether a vehicle driving into the bridge and culvert exceeds a preset height or not and outputting an ultrahigh signal; the controller is connected with the vehicle height detection equipment and outputs an alarm signal according to the ultrahigh signal, and an image acquisition instruction is output when a vehicle exceeding a preset height enters a bridge; the electronic light curtain generating equipment is connected with the controller, is arranged at the entrance of the bridge and culvert, generates an electronic light curtain in front of the vehicle exceeding the preset height after receiving the alarm signal, and generates and sends a vehicle entering signal when the vehicle exceeding the preset height enters the bridge and culvert; and the image acquisition equipment is used for acquiring the vehicle information of the vehicle exceeding the preset height and the bridge image. The invention carries out early warning on the ultrahigh vehicles which are input into the bridge and culvert, shoots and captures the evidence of the ultrahigh vehicles which illegally drive into the bridge and culvert when the vehicles drive into the bridge and culvert, and improves the safety management level of the bridge and the culvert and the protective facilities.)

1. The utility model provides a bridge and culvert protection system based on electron light curtain which characterized in that includes:

the vehicle height detection device is arranged at an entrance of a bridge and culvert and used for detecting whether a vehicle driving into the bridge and culvert exceeds a preset height or not and outputting an ultrahigh signal;

the controller is connected with the vehicle height detection equipment, receives the ultrahigh signal from the vehicle height detection equipment, outputs an alarm signal and outputs an image acquisition instruction when a vehicle exceeding a preset height enters the bridge;

the electronic light curtain generating device is arranged at the entrance of the bridge and culvert, generates an electronic light curtain on a lane in front of a vehicle with a preset height after receiving an alarm signal from the controller, and generates and sends a vehicle driving-in signal when the vehicle with the preset height drives into the bridge and culvert;

the image acquisition equipment is connected with the controller and acquires the vehicle information and the bridge image of the vehicle exceeding the preset height according to the image acquisition instruction.

2. The electronic light curtain-based bridge and culvert protection system according to claim 1, wherein the electronic light curtain generation device comprises a first infrared transmitter and a first infrared receiver, the first infrared transmitter and the first infrared receiver are both connected with the controller, the first infrared transmitter is used for transmitting multiple paths of infrared light, and the first infrared receiver is used for receiving multiple paths of infrared light from the first infrared transmitter and generating the vehicle entrance signal.

3. The electronic light curtain-based bridge and culvert protection system as claimed in claim 2, wherein the controller sends the alarm signal to the first infrared transmitter, the first infrared transmitter transmits infrared light after receiving the alarm signal, the first infrared receiver receives the infrared light from the first infrared transmitter, when the first infrared receiver does not receive the infrared light, the controller generates the vehicle entrance signal and sends the vehicle entrance signal to the controller, and the controller determines that a vehicle exceeding a preset height enters the bridge and culvert according to the vehicle entrance signal.

4. The bridge and culvert protection system based on the electronic light curtain as claimed in claim 3, wherein the controller sends the image acquisition command to the image acquisition device after receiving the vehicle driving signal, the image acquisition device acquires the vehicle information and the bridge and culvert image of the vehicle exceeding the preset height after receiving the image acquisition command, stores the vehicle information and the bridge and culvert image, and sends the bridge and culvert image to the controller.

5. The electronic light curtain-based bridge and culvert protection system of claim 4, further comprising: and the management terminal is connected with the controller, the bridge and culvert images are sent to the management terminal by the controller, and the bridge and culvert images are displayed by the management terminal.

6. The electronic light curtain based bridge and culvert protection system of claim 2, wherein the vehicle height detection device comprises a second infrared transmitter and a second infrared receiver, the second infrared receiver is connected with the controller, the second infrared transmitter is used for transmitting infrared light, the second infrared receiver receives the infrared light from the second infrared transmitter, and when the second infrared receiver does not receive the infrared light, an ultrahigh signal is sent to the controller.

7. The bridge and culvert protection system based on the electronic light curtain as claimed in claim 6, wherein a first strut and a second strut are respectively arranged at two sides of the entrance of the bridge and culvert, and the distance between the first strut and the entrance of the bridge and culvert is smaller than that between the second strut and the entrance of the bridge and culvert.

8. The electronic light curtain-based bridge and culvert protection system of claim 7, wherein the first infrared emitter is fixedly installed on a first pillar on one side of the entrance of the bridge and the first infrared receiver is fixedly installed on a first pillar on the other side of the entrance of the bridge and culvert; the second infrared transmitter is fixedly installed on the second support column on one side of the bridge and culvert inlet, and the second infrared receiver is fixedly installed on the second support column on the other side of the bridge and culvert inlet.

9. The electronic light curtain-based bridge and culvert protection system according to claim 6, wherein the vehicle height detection device is arranged at a height ranging from 3.5 m to 4.5 m; the height range of the electronic light curtain generating equipment is 1.5-4 m.

10. The electronic light curtain-based bridge and culvert protection system of claim 1, further comprising: the light alarm device is connected with the controller, and executes light alarm after receiving the alarm signal from the controller;

and the sound alarm equipment is connected with the controller, and executes sound alarm after receiving the alarm signal from the controller.

Technical Field

The invention belongs to the technical field of bridge and culvert security alarm, and particularly relates to a bridge and culvert protection system based on an electronic light curtain.

Background

In recent years, with the continuous development of the railway industry in China, the construction of railway bridges is increased, and most of railways are provided with bridges and culverts connected with roads. Due to the rapid development of local economy, the rapid development of highway transportation causes the rapid increase of motor vehicles, the large-scale dump trucks, container automobiles and special-purpose vehicles are greatly increased, accidents that the motor vehicles collide with the railway bridges occur occasionally, and great loss is caused to the safety of the railway bridges and the lives and properties of people.

At present, most of the protection measures for iron-span public-standing bridge crossing adopt the traditional prevention and control mode, if a height limiting protection frame is additionally arranged, once a vehicle high-speed collision accident happens, the impact of a hit-and-accident vehicle on the iron-span public bridge and culvert cannot be effectively prevented, meanwhile, due to the lack of an effective iron-span public bridge and culvert early warning and monitoring facility, the hit-and-accident vehicle cannot be tracked, investigated and proved, and great potential safety hazards and heavy maintenance cost are brought to railway operation departments.

With the rise of the technologies of internet of things, mobile communication and video monitoring, the bridge and culvert protection and ultrahigh vehicle detection are realized by using informatization and intelligentized means, and the uncertainty of a manual inspection mode is replaced. At present, most of technical means mainly solve the aspect of ultrahigh vehicle early warning detection, and research on the aspects of bridge and culvert active collision prevention, monitoring and alarming after collision, accident evidence obtaining and the like is less. The existing impact alarm detection research mainly utilizes a detection device formed by precision sensors such as a displacement sensor, a level meter, an inclination sensor and the like, is still in the research and experimental verification stage, is limited by factors such as higher false alarm rate, higher power consumption, difficult installation and deployment, higher installation and maintenance cost and the like, and is not widely applied. The following lists several technical principles and applications of more mature ultra-high detection alarm systems:

(1) ultrahigh vehicle warning system based on laser detection technology

The principle is as follows: the ultrahigh vehicle warning system based on the laser detection technology is characterized in that a horizontal laser line is emitted by an emitting device through a laser correlation detection principle, signal feedback is generated when an infrared/laser light curtain is blocked by a target, namely when the vehicle height exceeds the preset height, a detection device immediately sends an instruction, a display screen is arranged in front of a protection frame, and a driver of an ultrahigh vehicle can view the ultrahigh warning information of the vehicle.

The application condition is as follows: due to the limiting factors of difficulty in taking a power grid and getting the power, high cost, high false alarm and the like, the system is not deployed in a large scale and is only in a test verification stage.

(2) Intelligent collision alarm system based on displacement sensor

The principle is as follows: the solar energy communication detection alarm mainly comprises a displacement detector, a solar energy communication detection alarm and monitoring equipment. When the overpass culvert is collided and vibrates and displaces, the displacement detector immediately transmits a detected alarm signal to the monitoring equipment, the monitoring equipment carries out on-site snapshot, then the shot information is transmitted to the solar communication detection alarm, the alarm immediately gives an alarm, and meanwhile, a short (colorful) information transmission mode is started to transmit the alarm information to a specified mobile phone number.

Advantages and disadvantages: the system can generate alarm information for the railway overpass collision event, form image-text alarm information by combining monitoring equipment, and reduce the technical threshold of system power supply by adopting the solar cell for power supply.

Other experts and scholars also carry out related research, and if the experts detect the target by using a video time-space domain statistical information background modeling method, the influence of complex background of a bridge area and sensor jitter can be effectively improved, but the video target detection environment adaptability is poor. In order to solve the problems of all-weather and all-weather, the Wengwei et al researches the bridge anti-collision far-infrared thermal imaging early warning technology and adopts a plurality of (double) far-infrared thermal imaging cameras to carry out cross imaging, thereby improving the target positioning precision, but the infrared detection anti-interference capability is not high, and the system is complex and the cost performance is not high.

In summary, the prior art means meets the height limit monitoring requirements of partial bridges and culverts and protective facilities thereof, but lacks the application and popularization capability. At present, means for acquiring collision accident information of bridges and culverts and protective facilities thereof are still traditional means such as report by the masses, notification by traffic control departments and the like, and workers often cannot find a hit-and-go vehicle after arriving at a site, so that effective means for accident tracing and damaged facility tracing are lacked. Meanwhile, the collision accident is usually strong in destructiveness, and numerous bridges and culverts are remote, so that the bridge and culvert collision alarm system and device need to break through practical application problems of active collision avoidance, low false alarm, zero missing alarm, strong durability, high deterrence and the like.

Therefore, a system for effectively alarming an ultrahigh vehicle and timely alarming a bridge and culvert collision is particularly needed.

Disclosure of Invention

The invention aims to provide an electronic light curtain-based bridge and culvert protection system for effectively alarming an ultrahigh vehicle and timely early warning bridge and culvert collision.

In order to achieve the above object, the present invention provides a bridge and culvert protection system based on an electronic light curtain, comprising: the vehicle height detection device is arranged at an entrance of a bridge and culvert and used for detecting whether a vehicle driving into the bridge and culvert exceeds a preset height or not and outputting an ultrahigh signal; the controller is connected with the vehicle height detection equipment, receives the ultrahigh signal from the vehicle height detection equipment, outputs an alarm signal and outputs an image acquisition instruction when a vehicle exceeding a preset height enters the bridge; the electronic light curtain generating device is arranged at the entrance of the bridge and culvert, generates an electronic light curtain on a lane in front of a vehicle with a preset height after receiving an alarm signal from the controller, and generates and sends a vehicle driving-in signal when the vehicle with the preset height drives into the bridge and culvert; the image acquisition equipment is connected with the controller and acquires the vehicle information and the bridge image of the vehicle exceeding the preset height according to the image acquisition instruction.

Optionally, the electronic light curtain generating device includes a first infrared emitter and a first infrared receiver, both of which are connected to the controller, the first infrared emitter is configured to emit multiple paths of infrared light, and the first infrared receiver is configured to receive the multiple paths of infrared light from the first infrared emitter and generate the vehicle entry signal.

Optionally, the controller sends the alarm signal to the first infrared transmitter, the first infrared transmitter transmits infrared light after receiving the alarm signal, the first infrared receiver receives the infrared light from the first infrared transmitter, when the first infrared receiver does not receive the infrared light, the controller generates a vehicle entrance signal and sends the vehicle entrance signal to the controller, and the controller determines that a vehicle exceeding a preset height enters the bridge according to the vehicle entrance signal.

Optionally, after receiving the vehicle entering signal, the controller sends the image acquisition instruction to the image acquisition device, and after receiving the image acquisition instruction, the image acquisition device acquires vehicle information and bridge images of the vehicle exceeding the preset height, stores the vehicle information and the bridge images, and sends the bridge images to the controller.

Optionally, the bridge and culvert protection system based on the electronic light curtain further comprises: and the management terminal is connected with the controller, the bridge and culvert images are sent to the management terminal by the controller, and the bridge and culvert images are displayed by the management terminal.

Optionally, the vehicle height detecting device includes a second infrared transmitter and a second infrared receiver, the second infrared receiver is connected to the controller, the second infrared transmitter is configured to transmit infrared light, the second infrared receiver receives the infrared light from the second infrared transmitter, and when the second infrared receiver does not receive the infrared light, the vehicle height detecting device sends an ultrahigh signal to the controller.

Optionally, both sides at the bridge and culvert entrance are equipped with first pillar and second pillar respectively, first pillar with the distance at the bridge and culvert entrance is less than the second pillar with the distance at the bridge and culvert entrance.

Optionally, the first infrared transmitter is fixedly installed on the first pillar on one side of the bridge and culvert entrance, and the first infrared receiver is fixedly installed on the first pillar on the other side of the bridge and culvert entrance; the second infrared transmitter is fixedly installed on the second support column on one side of the bridge and culvert inlet, and the second infrared receiver is fixedly installed on the second support column on the other side of the bridge and culvert inlet.

Optionally, the height range set by the vehicle height detection device is 3.5 meters to 4.5 meters; the height range of the electronic light curtain generating equipment is 1.5-4 m.

Optionally, the bridge and culvert protection system based on the electronic light curtain further includes: the light alarm device is connected with the controller, and executes light alarm after receiving the alarm signal from the controller; and the sound alarm equipment is connected with the controller, and executes sound alarm after receiving the alarm signal from the controller.

The invention has the beneficial effects that: when the vehicle height exceeds the limiting height of the bridge and the bridge protection facility, the system can accurately monitor and carry out early warning prompt through sound and light, and the driver with trouble is restrained from driving to continuously move forward through the form of the electronic light curtain, so that an active anti-collision mechanism is formed, the situation that the ultrahigh vehicle continuously moves forward to cause collision accidents is avoided, when the vehicle breaks through the early warning mechanism of the system and the collision accidents of the bridge and the bridge protection facility occur, the accident process is checked through the image stored by the image acquisition equipment, so that the collision accident handling supervision and accident responsibility tracking capabilities are improved, and the safety management level of the bridge and the bridge protection facility is improved.

The present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.

Fig. 1 shows a block diagram of a bridge and culvert protection system based on an electronic light curtain according to an embodiment of the invention.

Fig. 2 shows a schematic installation of an electronic light curtain based bridge and culvert protection system according to an embodiment of the invention.

Fig. 3 shows a schematic diagram of a bridge and culvert protection system based on an electronic light curtain according to an embodiment of the invention.

Description of reference numerals:

102. a vehicle height detection device; 104. a controller; 106. an electronic light curtain generating device; 108. an image acquisition device; 110. a light alarm device; 112. an audible alarm device.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

According to the invention, the bridge and culvert protection system based on the electronic light curtain comprises: the vehicle height detection device is arranged at an entrance of the bridge and culvert and is used for detecting whether a vehicle driving into the bridge and culvert exceeds a preset height or not and outputting an ultrahigh signal; the controller is connected with the vehicle height detection equipment, outputs an alarm signal after receiving the ultrahigh signal from the vehicle height detection equipment, and outputs an image acquisition instruction when a vehicle exceeding a preset height enters a bridge; the electronic light curtain generating device is arranged at the entrance of a bridge and culvert, generates an electronic light curtain on a lane in front of a vehicle exceeding a preset height after receiving an alarm signal from the controller, and generates and sends a vehicle driving-in signal when the vehicle exceeding the preset height drives into the bridge and culvert; the image acquisition equipment is connected with the controller and acquires vehicle information and bridge images of the vehicle exceeding the preset height according to the image acquisition instruction.

Specifically, vehicle height check out test set adopts infrared correlation detection mode to carry out accurate detection to super high vehicle, application light sound signal, carry out the early warning to super high vehicle, electron light curtain generating device utilizes light emission technique transmission infrared light, form a slice red apparent light curtain in super high vehicle the place ahead, virtually become "electron division wall", super high vehicle driver can obviously discern, when the vehicle drives into the bridge, electron light curtain generating device sends the vehicle and drives into signal to the controller, the controller sends image acquisition signal to image acquisition equipment, image acquisition equipment shoots the evidence of taking a candid photograph to the super high vehicle that drives into the bridge violating the regulations.

According to an exemplary embodiment, when the height of a vehicle exceeds the limit height of a bridge and a bridge protection facility, the electronic light curtain based bridge and culvert protection system can accurately monitor and give an early warning prompt through sound and light, and the driver with trouble is restrained from driving continuously and forwards in the form of the electronic light curtain, so that an active anti-collision mechanism is formed, the situation that an ultra-high vehicle continuously forwards to cause a collision accident is avoided, and when the vehicle breaks through the early warning mechanism of the system and the collision accident of the bridge and the bridge protection facility occurs, the accident process is checked through images stored by image acquisition equipment, so that the collision accident handling supervision and accident responsibility tracking capabilities are improved, and the safety management level of the bridge and the bridge protection facility is improved.

Alternatively, the electronic light curtain generating device comprises a first infrared transmitter and a first infrared receiver, the first infrared transmitter and the first infrared receiver are both connected with the controller, the first infrared transmitter is used for transmitting multiple paths of infrared light, and the first infrared receiver is used for receiving the multiple paths of infrared light from the first infrared transmitter and generating the vehicle entering signal.

Specifically, the first infrared receiver forms an infrared electronic light curtain from infrared light of the first infrared transmitter, so as to remind a driver that the vehicle is ultrahigh and does not need to drive in, and when the vehicle drives into the electronic light curtain, the first infrared receiver does not receive the infrared light from the first infrared transmitter, which indicates that the vehicle drives into the electronic light curtain and then enters into a bridge, and the first infrared receiver is blocked from receiving the infrared light.

As an alternative scheme, the controller sends an alarm signal to the first infrared transmitter, the first infrared transmitter transmits infrared light after receiving the alarm signal, the first infrared receiver receives the infrared light from the first infrared transmitter, when the first infrared receiver does not receive the infrared light, a vehicle entrance signal is generated and sent to the controller, and the controller determines that the vehicle exceeding the preset height enters the bridge according to the vehicle entrance signal.

Specifically, after the controller sends an alarm signal to the first infrared transmitter, the first infrared transmitter sends multiple paths of infrared light, the first infrared receiver receives the infrared light from the first infrared transmitter to form an infrared electronic light curtain to remind a driver that a vehicle is ultrahigh and does not need to drive in, and when the vehicle drives into the electronic light curtain, the first infrared receiver does not receive the infrared light from the first infrared transmitter, so that the vehicle enters a bridge after driving into the electronic light curtain, the first infrared receiver is blocked from receiving the infrared light, and the first infrared receiver sends a vehicle driving-in signal to the controller.

As an alternative scheme, after receiving a vehicle driving signal, the controller sends an image acquisition instruction to the image acquisition equipment, and after receiving the image acquisition instruction, the image acquisition equipment acquires vehicle information and bridge images of vehicles exceeding a preset height, stores the vehicle information and the bridge images, and sends the bridge images to the controller.

Specifically, the image acquisition device acquires vehicle information and bridge images of vehicles exceeding a preset height after receiving an image acquisition instruction from the controller.

As an alternative, the bridge and culvert protection system based on the electronic light curtain further comprises: and the management terminal is connected with the controller, the controller sends the bridge image to the management terminal, and the management terminal displays the bridge image.

Specifically, accident information of the ultrahigh vehicle impacting the bridge and the culvert and the protective facilities thereof can be effectively transmitted back to the management terminal in time, the management terminal takes emergency measures to process an accident site at the first time, and secondary accidents caused by the impacting accidents are avoided.

The information processing after the ultrahigh vehicle enters the overpass can also inform the relevant managers through mobile phone short messages.

Alternatively, the vehicle height detection device comprises a second infrared transmitter and a second infrared receiver, the second infrared receiver is connected with the controller, the second infrared transmitter is used for transmitting infrared light, the second infrared receiver receives the infrared light from the second infrared transmitter, and when the second infrared receiver does not receive the infrared light, the ultrahigh signal is sent to the controller.

Specifically, the second infrared receiver receives infrared light from the second infrared transmitter, and when the second infrared receiver does not receive infrared light, it indicates that the vehicle exceeds a preset height, and the second infrared receiver is blocked from receiving infrared light.

As an alternative scheme, a first supporting column and a second supporting column are respectively arranged on two sides of the entrance of the bridge and culvert, and the distance between the first supporting column and the entrance of the bridge and culvert is smaller than the distance between the second supporting column and the entrance of the bridge and culvert.

Specifically, first pillar and second pillar are used for installing electron light curtain generation equipment and vehicle height check out test set respectively, and first pillar setting is being close to the position of bridge entrance more, and the second pillar is more far away from the bridge entrance than first pillar.

As an alternative scheme, the first infrared transmitter is fixedly arranged on the first strut on one side of the bridge and culvert inlet, and the first infrared receiver is fixedly arranged on the first strut on the other side of the bridge and culvert inlet; the second infrared transmitter is fixedly arranged on the second support column on one side of the bridge and culvert inlet, and the second infrared receiver is fixedly arranged on the second support column on the other side of the bridge and culvert inlet.

Specifically, the second infrared transmitter is installed on the second pillar on one side of the bridge entrance, the second infrared receiver is installed on the second pillar on the other side of the bridge entrance, the second infrared receiver receives infrared light of the second infrared transmitter, when the second infrared receiver cannot receive the infrared light, the vehicle is shown to exceed the preset height, the second infrared receiver is prevented from receiving the infrared light, and the second infrared receiver sends an ultrahigh signal to the controller.

The first infrared transmitter is arranged on a first support column on one side of a bridge entrance, the first infrared receiver is arranged on a first support column on the other side of the bridge entrance, the controller sends an alarm signal to the first infrared transmitter, the first infrared transmitter sends multiple paths of infrared light, the first infrared receiver is used for infrared light from the first infrared transmitter, an infrared electronic light curtain is formed, a driver is reminded that a vehicle is ultrahigh and does not need to drive in, when the vehicle drives in the electronic light curtain, the first infrared receiver receives the infrared light which does not come from the first infrared transmitter, the vehicle is explained to drive in the electronic light curtain and then enters the bridge, the first infrared receiver is blocked to receive the infrared light, and the first infrared receiver sends a vehicle driving signal to the controller.

Alternatively, the vehicle height detection apparatus is set to a height in the range of 3.5 m to 4.5 m; the height range of the electronic light curtain generating equipment is 1.5 meters to 4 meters.

Specifically, the height of the vehicle height detection device is set according to the limit height of the bridge and culvert, and the height of the electronic light curtain generation device is set according to the height of the general truck vehicle.

As an alternative, the electronic light curtain-based bridge and culvert protection system further comprises: the light alarm device is connected with the controller, and executes light alarm after receiving the alarm signal from the controller; and the sound alarm device is connected with the controller, and executes sound alarm after receiving the alarm signal from the controller.

Specifically, the driver is reminded of not driving the ultrahigh vehicle into the bridge through the early warning prompt of sound and light.

Examples

Fig. 1 shows a block diagram of a bridge and culvert protection system based on an electronic light curtain according to an embodiment of the invention. Fig. 2 shows a schematic installation of an electronic light curtain based bridge and culvert protection system according to an embodiment of the invention. Fig. 3 shows a schematic diagram of a bridge and culvert protection system based on an electronic light curtain according to an embodiment of the invention.

Referring to fig. 1, fig. 2 and fig. 3, the bridge and culvert protection system based on the electronic light curtain includes: the vehicle height detection device 102 is arranged at an entrance of a bridge and culvert and is used for detecting whether a vehicle entering the bridge and culvert exceeds a preset height or not and outputting an ultrahigh signal; the controller 104 is connected with the vehicle height detection equipment 102, receives the ultrahigh signal from the vehicle height detection equipment 102, outputs an alarm signal, and outputs an image acquisition instruction when a vehicle exceeding a preset height enters a bridge; the electronic light curtain generating device 106 is connected with the controller 104, the electronic light curtain generating device 106 is arranged at the entrance of a bridge and culvert, generates an electronic light curtain on a lane in front of a vehicle exceeding a preset height after receiving an alarm signal from the controller 104, and generates and sends a vehicle entering signal when the vehicle exceeding the preset height enters the bridge and culvert; the image acquisition device 108 is connected with the controller 104, and the image acquisition device 108 acquires vehicle information and bridge images of the vehicle exceeding the preset height according to the image acquisition instruction.

The electronic light curtain generating device 106 includes a first infrared transmitter and a first infrared receiver, both of which are connected to the controller 104, the first infrared transmitter is configured to transmit multiple paths of infrared light, and the first infrared receiver is configured to receive multiple paths of infrared light from the first infrared transmitter and generate a vehicle entry signal.

The controller 104 sends the alarm signal to the first infrared transmitter, the first infrared transmitter transmits infrared light after receiving the alarm signal, the first infrared receiver receives the infrared light from the first infrared transmitter, when the first infrared receiver does not receive the infrared light, a vehicle entrance signal is generated and sent to the controller 104, and the controller 104 determines that the vehicle exceeding the preset height enters the bridge according to the vehicle entrance signal.

After receiving the vehicle entering signal, the controller 104 sends an image acquisition instruction to the image acquisition device 108, and after receiving the image acquisition instruction, the image acquisition device 108 acquires vehicle information and bridge images of the vehicle exceeding a preset height, stores the vehicle information and the bridge images, and sends the bridge images to the controller 104.

Wherein, still include based on electron light curtain bridge culvert protection system: and the management terminal is connected with the controller 104, the controller 104 sends the bridge image to the management terminal, and the management terminal displays the bridge image.

The vehicle height detection device 102 includes a second infrared transmitter and a second infrared receiver, the second infrared receiver is connected to the controller 104, the second infrared transmitter is configured to transmit infrared light, the second infrared receiver receives the infrared light from the second infrared transmitter, and when the second infrared receiver does not receive the infrared light, the second infrared receiver sends an ultrahigh signal to the controller 104.

Wherein, the both sides at the entrance of bridge and culvert are equipped with first pillar and second pillar respectively, and the distance of first pillar and bridge and culvert entry is less than the distance of second pillar and bridge and culvert entry.

The first infrared transmitter is fixedly arranged on a first strut on one side of the bridge and culvert inlet, and the first infrared receiver is fixedly arranged on a first strut on the other side of the bridge and culvert inlet; the second infrared transmitter is fixedly arranged on the second support column on one side of the bridge and culvert inlet, and the second infrared receiver is fixedly arranged on the second support column on the other side of the bridge and culvert inlet.

Wherein the vehicle height detection device setting 102 has a height range of 3.5 meters to 4.5 meters; the height of the electronic light curtain generating device arrangement 106 ranges from 1.5 meters to 4 meters.

Wherein, the bridge and culvert protection system based on electron light curtain still includes: the light alarm device 110, the light alarm device 110 is connected with the controller 104, and when the light alarm device 110 receives the alarm signal from the controller 104, the light alarm is executed; the sound alarm device 112, the sound alarm device 112 is connected with the controller 104, when the sound alarm device receives the alarm signal from the controller 104, the sound alarm is executed.

In fig. 3, the protection system provides an instant short message alarm function, and the controller is connected with the GSM communication module, so that related personnel can receive violation traffic information of the ultrahigh vehicle at the first time, and can conveniently master whether the bridge and the protection facilities thereof have ultrahigh traffic vehicles in real time, thereby providing basic guarantee for quickly and efficiently starting subsequent accident handling procedures.

The system also provides remote network monitoring, and can effectively improve the management efficiency and quality. When the ultrahigh vehicle enters the bridge and the protective facilities thereof, the system software can quickly search and retrieve from the video document, know the consequences caused by the violation of traffic passing through the bridge in time from the playback video, facilitate accident handling and quickly start the subsequent obstacle clearing program.

The system adopts high-definition equipment for evidence collection, and the appearance and the license plate number of the illegally passing ultrahigh vehicle can be clearly captured in daytime or at night, so that the requirements of evidence collection and accident handling after the accident are met.

The electronic light curtain technology adopted by the system can work all day long without being influenced by the intensity of sunlight, and the violation driver can visually observe the electronic isolation wall, so that the system has a strong deterrent effect on the violation driver.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.