CN112785853A - Independent laser device and method for pedestrian safety protection - Google Patents
Independent laser device and method for pedestrian safety protection Download PDFInfo
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- CN112785853A CN112785853A CN202110037310.0A CN202110037310A CN112785853A CN 112785853 A CN112785853 A CN 112785853A CN 202110037310 A CN202110037310 A CN 202110037310A CN 112785853 A CN112785853 A CN 112785853A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/005—Traffic control systems for road vehicles including pedestrian guidance indicator
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Abstract
The invention discloses an independent laser device and a method for pedestrian safety protection, and the device comprises a plurality of linear lasers and laser transceiving sensors, wherein the linear lasers emit linear lasers to irradiate the pedestrians to form a plurality of laser warning lines, the laser transceiving sensors emit laser light curtains to cover the pedestrians and simultaneously sense whether pedestrians or vehicles pass through a path, when the laser transceiving sensors scan through the laser light curtains and detect that the pedestrians pass through, the linear lasers emit the linear lasers, and when the laser transceiving sensors scan through the laser light curtains and detect that the pedestrians disappear from the path, the laser transceiving sensors send closing signals to the linear lasers. Whether a pedestrian or a vehicle exists on a sensing path (such as a zebra crossing) through the laser transceiving sensor, when the pedestrian passes through, the linear laser emits linear laser, and the linear laser is closed until the pedestrian passes through completely, so that the pedestrian is protected to pass safely in the whole intelligent way, the energy consumption is reduced, the damage of the laser line to the pedestrian is reduced, and the laser transceiving sensor is safer and more reliable.
Description
Technical Field
The invention relates to the technical field of road safety traffic facilities, in particular to an independent laser device and method for pedestrian safety protection.
Background
In road traffic, pedestrian crossing lines are usually arranged at intersections or road sections with concentrated pedestrians, so that pedestrians or bicycles can conveniently pass through the road. At present, the number of motor vehicles is increasing day by day, pedestrians are weak groups in traffic, once a traffic accident occurs, the damage to the pedestrians is difficult to estimate, especially, in many countries in vast rural areas, the lane limit is high, the closed management cannot be performed, the number of pedestrian passageway zebra crossings is large, the traffic accident is easy to occur due to the fact that people lack of vehicles and the sight is poor at night, and the function of a pedestrian safety device is highlighted.
Especially, at night, in thunderstorm days or in foggy days, the sight of drivers is poor due to too dark light, if pedestrians and bicycles passing through the road cannot be found in time, great danger is caused to the pedestrians and the bicycles, and great potential safety hazards exist in road traffic.
Disclosure of Invention
In view of this, it is necessary to provide an independent laser device and method for pedestrian safety protection, which independently perform full-range safety protection, have a compact structure, and save energy and reduce emission.
The utility model provides an independent type laser device of pedestrian safety protection, it includes a plurality of linear laser instruments and laser transceiver sensor, and is a plurality of linear laser instrument launches line type laser respectively in order to shine on one's body the pedestrian to form many laser warning lines on the person of going, laser transceiver sensor launches the laser light curtain, the laser light curtain covers on the whole route that the pedestrian passed through, laser transceiver sensor is used for the sensing whether there is pedestrian or vehicle on the route, works as laser transceiver sensor detects through the scanning of laser light curtain that there is the pedestrian to pass through, sends and opens the signal and makes linear laser instrument transmission line type laser for linear laser instrument, works as laser transceiver sensor passes through the scanning of laser light curtain and detects the pedestrian and is in after the route disappears, sends and closes the signal and gives linear laser instrument.
Further, the plurality of line lasers are divided into at least two columns, and each column includes a plurality of line lasers arranged at regular intervals in the vertical direction. Further, the plurality of line lasers are each a tertiary laser.
The device further comprises a controller, wherein the plurality of linear lasers and the laser transceiving sensors are respectively electrically connected with the controller, the laser transceiving sensors send signals to the controller, and the controller controls the plurality of linear lasers to be switched on and off according to the signals.
Further, the installation height of the plurality of line lasers is 20-30 cm to irradiate the feet of the pedestrian, the plurality of line lasers are arranged in the vertical direction to form a laser warning line with a certain height range, and the height range of the plurality of laser warning lines is 10-30 cm.
Furthermore, the laser transceiver sensor is installed above or at the side of the plurality of linear lasers, the laser transceiver sensor is a rotary scanning laser, the rotary scanning coverage angle is 120 degrees and 280 degrees, and the scanning radius coverage area is in the range of 0.05-40 meters.
Further, the plurality of linear lasers are installed in a bottom pile of a lamp post, the bottom pile is provided with a plurality of side plates which enclose an inner space, one side plate basically faces to a path and adopts a light-transmitting plate, an installation plate is arranged in the bottom pile to install the plurality of linear lasers, and the laser transceiving sensor is installed at the top end of the installation plate.
Further, the controller is arranged in a control box or in the bottom pile, the control box is arranged on a lamp post, the lamp post is further provided with a lighting device and a solar charging panel to supply power to the controller, the linear lasers and the laser transceiving sensors, and the controller is further internally provided with a wireless communication device to perform data transmission and remote control with an external server or a remote terminal.
Further, the device also comprises a timer and/or an optical sensor, wherein the timer is used for sending switch signals to the plurality of line lasers and the laser transceiving sensors at regular time, the timer is set at night working time, and the optical sensor sends signals to the plurality of line lasers and the laser transceiving sensors when sensing that the ambient light is weaker than a preset brightness value.
And, a pedestrian safety protection method realized by the above-mentioned pedestrian safety protection independent type laser device, characterized by comprising the steps of:
starting a laser transceiving sensor;
the laser transceiving sensor senses whether a pedestrian or a vehicle exists on a path;
when the laser transceiving sensor detects that a pedestrian passes through a path through laser light curtain scanning, a starting signal is sent to the linear laser; the linear laser emits linear laser;
and when the laser transceiving sensor detects that the pedestrian disappears in the path through laser light curtain scanning, a closing signal is sent to the linear laser.
Further, the laser transceiver sensor detects a moving object on the path, generates a scanning image of the moving object, determines whether the moving object is a pedestrian or a vehicle by analyzing and calculating the scanning image, and activates the linear laser when the moving object is determined to be a pedestrian.
In the independent laser device and the independent laser method for pedestrian safety protection, whether pedestrians or vehicles pass through a path (such as a zebra crossing) is sensed through the laser transceiving sensor, when the laser transceiving sensor detects that pedestrians pass through the laser light curtain, a starting signal is sent to the linear laser to enable the linear laser to emit linear laser, and when the laser transceiving sensor detects that the pedestrians disappear from the path through the laser light curtain, a closing signal is sent to the linear laser. Like this, on the one hand through the whole route of laser transceiver sensor sensing pedestrian, accomplish whole safe guard, it is more intelligent and security higher, on the other hand energy saving, energy saving and emission reduction also avoids the too much laser line of linear laser emission and causes laser pollution, reduces the damage of laser line to the people simultaneously, safe and reliable more. The laser transceiving sensor is closely matched with the linear laser, the structure is compact, the additional space is not occupied, the realization is easy, the cost is low, and the popularization is convenient.
Drawings
Fig. 1 is a schematic structural diagram of a pedestrian safety protection independent laser device provided in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a laser-related part in a pedestrian-safety-protection independent laser device provided by an embodiment of the invention.
Fig. 3 is a schematic structural diagram of an application of the pedestrian safety protection independent laser device according to the embodiment of the invention.
Detailed Description
The present embodiment takes a pedestrian safety protection independent laser device as an example, and the present invention will be described in detail with reference to the specific embodiments and the accompanying drawings.
Referring to fig. 1, 2 and 3, an independent laser device 100 for pedestrian safety protection and its internal structure are shown, the device 100 includes a plurality of line lasers 10 and a laser transceiver sensor 20, the line lasers 10 respectively emit line-shaped laser light to irradiate a pedestrian 60 (i.e. a pedestrian 60) and form a plurality of laser warning lines 61 on the pedestrian 60, the laser transceiver sensor 20 emits a laser light curtain 28, the laser light curtain 28 covers the pedestrian 60 passing through the whole path, the laser transceiver sensor 20 is used for sensing whether there is a pedestrian or a vehicle on the path, when the laser transceiver sensor 20 detects that there is a pedestrian 60 passing through the laser light curtain 28, an activation signal is sent to the line laser 10 to make the line laser 10 emit line-shaped laser light, when the laser transceiver sensor 20 detects that the pedestrian 60 disappears through the laser light curtain 28, a shut down signal is sent to the line laser 10.
Specifically, the plurality of line lasers 10 are divided into at least two columns, each column including a plurality of line lasers 10 arranged at regular intervals in the vertical direction. Further, the plurality of line lasers 10 are each a three-stage laser.
Further, the apparatus 100 further includes a controller 30, the plurality of line lasers 10 and the laser transceiver sensor 20 are electrically connected to the controller 30, respectively, the laser transceiver sensor 20 sends a signal to the controller 30, and the controller 30 controls the plurality of line lasers 10 to be turned on and off according to the signal.
Further, the plurality of line lasers 10 are installed at a height of 20 to 30 cm to irradiate the feet of the pedestrian 60, the plurality of line lasers 10 are arranged in a vertical direction to form a laser warning line 61 having a certain height range, and the height range of the plurality of laser warning lines 61 is 10 to 30 cm.
As shown in fig. 2, the laser transceiver sensor 20 is further installed above or beside the plurality of line lasers 10, the laser transceiver sensor 20 is a rotary scanning laser, the rotary scanning coverage angle is 120-280 degrees, and the scanning radius coverage area is in the range of 0.05-40 meters. The specific product can adopt a F20 model laser radar of Shenzhen market weight laser radar Limited. The rotary scanning laser can refer to a plurality of patent applications applied successively in 2018, including but not limited to a rotary laser scanning sensor with publication number CN205785062U published in 2016, 12, month, 07; the public announcement number of the year 2017, 03, month 22 and the like is CN 206038022U; a multi-combination laser radar device with the publication number of CN106443699A published in 2017, 02, month and 22 and a scanning method thereof; a rotary laser scanning device published in 2018, 06, 29 and with the publication number of CN 108227183A; a laser radar device published in 2018, 08 and 03, and having a publication number of CN 108363071A; a laser radar device published in 2018, 08 and 14 months and with the publication number of CN 108398696A.
Further, the plurality of linear lasers 10 are installed in a bottom pile 50 of a lamp post 101, the bottom pile 50 has a plurality of side panels enclosing an inner space, basically one side panel is a front panel facing a path and adopts a light-transmitting plate, the bottom pile 50 has a mounting plate 51 therein for installing the plurality of linear lasers 10, and the laser transceiver sensor 20 is installed at the top end of the mounting plate. The plurality of line lasers 10 may be mounted on the mounting board 51 in one or more than two rows, each row including a plurality of lasers 11. When more than two rows of lasers 11 are adopted, the lasers 11 in adjacent rows are staggered, so that the irradiated laser is more densely projected on the body of the pedestrian 60, and the warning effect is more obvious.
As shown in fig. 2, the inner space of the bottom pile 50 is divided into an upper space and a lower space, the laser transceiver sensor 20 is installed in the upper space, and the plurality of line lasers 10 are installed in the lower space. Both in the same and longitudinal direction and oriented in the same direction, which allows accurate sensing of pedestrians, both laser installations can be facing the same scene in synchronization, however, the laser transceiver sensor 20 has a wider viewing angle relative to the line laser 10.
Further, the controller 30 is installed in a control box or in the bottom pile 50, in the figure, the controller 30 is shown as a box, the control box is installed on a lamp post 101, a lighting device and a solar charging panel 55 are further arranged on the lamp post 101 to supply power to the controller 30, the plurality of linear lasers 10 and the laser transceiver sensor 20, and a wireless communication device is further arranged in the controller 30 to perform data transmission and remote control with an external server or a remote terminal.
Further, the apparatus 100 further includes a timer and/or a light sensor, the timer is used for sending a switch signal to the plurality of line lasers 10 and the laser transceiver sensor 20 at regular time, the timer is set at night working time, and the light sensor sends a switch on to the plurality of line lasers 10 and the laser transceiver sensor 20 when sensing that the ambient light is weaker than a predetermined brightness value.
The embodiment of the present invention further provides a pedestrian safety protection method, which is implemented by the above-mentioned pedestrian safety protection independent laser device 100, and includes the following steps:
step S10, turning on the laser transceiver sensor 20;
step S20, the laser transceiver sensor 20 senses whether there is a pedestrian or a vehicle on the path;
step S30, when the laser transceiver sensor 20 detects that the pedestrian 60 passes through the path by scanning the laser light curtain 28, it sends a start signal to the linear laser 10; the line laser 10 emits line laser light;
in step S40, when the laser transceiver sensor 20 scans and detects the pedestrian 60 through the laser light curtain 28 and disappears in the path, it sends a closing signal to the linear laser 10.
In step S01, the respective devices are first secured in the energized state, the linear laser 10 and the laser transmission/reception sensor 20 are mounted and adjusted, and then the laser transmission/reception sensor 20 is turned on. In practical applications, the laser transceiver sensor 20 may be turned on at a timing, for example, according to the morning and evening definition according to different regions and seasons. More precisely, the light intensity is sensed by a light sensor, and the laser transceiver 20 is turned on when the solar light is weaker than a predetermined light intensity value. Of course, it may be turned on by the controller 30, or by remote control, to handle special or emergency situations.
After the laser transceiver sensor 20 is turned on, the laser transceiver sensor 20 scans in real time, that is, a laser radar sensing mode is adopted to sense whether a pedestrian or a vehicle passes through a path in real time.
As shown in fig. 3, taking the pedestrian 60 crossing the zebra crossing as an example, when the pedestrian 60 steps into the zebra crossing, the illustration is from the opposite end of the facility, although it will be understood that the pedestrian 60 will function similarly when entering the zebra crossing from the side of the device 100. The laser transceiver sensor 20 scans in real time, and immediately sends a start signal to the controller 30 when scanning that the pedestrian 60 enters the zebra crossing, and certainly, the start signal can be directly sent to the linear laser 10 when the controller is not used, or sent to a remote server to remotely control the linear laser 10. The linear laser 10 emits linear laser to irradiate the foot position of the pedestrian 60, the warning line 61 always irradiates the foot of the human body 60 along with the advancing of the pedestrian 60, when a vehicle comes, a driver can see that a flowing warning line 61 passes through the zebra crossing at a long distance, and therefore the warning that the pedestrian passes through the zebra crossing can be obtained, and therefore the safety of the pedestrian can be provided.
The laser transceiver sensor 20 always senses whether a pedestrian or a vehicle is on the path in the passing process of the pedestrian 60, and as long as the pedestrian 60 is still on the zebra crossing, the linear laser 10 continuously emits linear laser, so that the function of the pedestrian 60 passing the zebra crossing is maintained in the whole process until the pedestrian 60 completely passes, that is, when the laser transceiver sensor 20 scans and detects the pedestrian 60 through the laser light curtain 28 and disappears on the path, a closing signal is sent to the linear laser 10.
In a specific application, it is preferable that the laser transceiver sensor 20 detects a moving object on a path, generates a scan image of the moving object, determines whether the moving object is a pedestrian 60 or a vehicle by analyzing and calculating the scan image, and activates the linear laser to repeat the above cycle when the moving object is determined as the pedestrian 60.
In the above-mentioned pedestrian safety protection independent laser device 100 and method, whether there is a pedestrian or a vehicle on a path (such as a zebra crossing) is sensed by the laser transceiver sensor 20, when the laser transceiver sensor 20 detects that there is a pedestrian 60 passing through the laser light curtain 28, it sends a turn-on signal to the linear laser 10 to make the linear laser 10 emit linear laser, and when the laser transceiver sensor 20 detects that the pedestrian 60 disappears on the path through the laser light curtain 28, it sends a turn-off signal to the linear laser 10. Like this, on the one hand through the whole route of laser transceiver transducer 20 sensing pedestrian 60, accomplish whole safe guard, it is more intelligent and security is higher, on the other hand, can control according to whether light and pedestrian exist intelligently, energy saving and emission reduction, also avoid linear laser 10 to launch too much laser line and cause laser pollution moreover, reduce the damage of laser line to the people simultaneously, safe and reliable more. In addition, the laser transceiver sensor 20 has a long sensing distance and a wide range, and when multiple rows are adopted, the linear laser warning lines are more concentrated, so that the warning effect is better, and therefore, a single independent laser device 100 for pedestrian safety protection can be adopted to cover the whole sidewalk, so that the facility cost can be reduced, and certainly, two laser devices can be used in cooperation with one another on sidewalks of eight lanes or even wider roads. The laser transceiver sensor 20 and the linear laser 10 are closely matched, so that the structure is compact, the additional space is not occupied, the implementation is easy, the cost is low, and the popularization is convenient.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and those skilled in the art can make various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an independent type laser device of pedestrian safety protection, its characterized in that includes a plurality of linear laser and laser transceiver sensor, and is a plurality of linear laser launches line type laser respectively in order to shine on one's body the pedestrian to form many laser warning lines on the person of going, laser transceiver sensor launches the laser light curtain, the laser light curtain covers on the whole route that the pedestrian passed through, laser transceiver sensor is used for the sensing whether have pedestrian or vehicle on the route, works as laser transceiver sensor detects through laser light curtain scanning and has had pedestrian's process, sends and opens the signal and make linear laser emission line type laser for linear laser, works as laser transceiver sensor passes through laser light curtain scanning detection pedestrian and is in after the route disappears, sends and closes the signal and gives linear laser.
2. The pedestrian safety protection standalone laser apparatus of claim 1, wherein the plurality of line lasers are divided into at least two columns, each column including a plurality of line lasers spaced evenly vertically, each of the plurality of line lasers being a three stage laser.
3. The pedestrian safety protection independent laser apparatus of claim 2, further comprising a controller, wherein the plurality of line lasers and the laser transceiver sensor are electrically connected to the controller, respectively, wherein the laser transceiver sensor sends a signal to the controller, and the controller controls the plurality of line lasers to be switched on and off according to the signal.
4. The pedestrian safety protection standalone laser device as claimed in claim 2, wherein the plurality of line lasers are installed at a height of 20-30 cm to irradiate a foot of a pedestrian, and are arranged in a vertical direction to form a laser warning line having a height range of 10-30 cm.
5. The pedestrian safety protection independent laser device as claimed in claim 2, wherein the laser transceiver sensor is installed above or beside the plurality of line lasers, the laser transceiver sensor is a rotary scanning laser, the rotary scanning coverage angle is 120 degrees and 280 degrees, and the scanning radius coverage area is in a range of 0.05-40 meters.
6. The pedestrian safety protection standalone laser apparatus of claim 3, wherein the plurality of line lasers are mounted in a footer of a pole, the footer having a plurality of side panels enclosing an interior space, substantially one side panel facing the pathway and employing a light transmissive panel, the footer having a mounting plate therein for mounting the plurality of line lasers, the laser transceiver sensor being mounted at a top end of the mounting plate.
7. The pedestrian safety protection independent laser device as claimed in claim 6, wherein the controller is installed in a control box or in the bottom pile, the control box is installed on a lamp post, a lighting device and a solar charging panel are further arranged on the lamp post, the solar charging panel is connected with the controller, the plurality of linear lasers and the laser transceiving sensor to supply power, and a wireless communication device is further arranged in the controller to perform data transmission and remote control with an external server or a remote terminal.
8. The pedestrian safety protection standalone laser device of claim 1, further comprising a timer and/or a light sensor, wherein the timer is configured to send a switch signal to the plurality of line lasers and the laser transceiver sensor at a timed rate, wherein the timer is set for nighttime operation, and wherein the light sensor sends a switch on to the plurality of line lasers and the laser transceiver sensor when sensing that ambient light is less than a predetermined brightness value.
9. A pedestrian safety protection method implemented by the pedestrian safety protection independent laser device according to any one of claims 1 to 8, comprising the steps of:
starting a laser transceiving sensor;
the laser transceiving sensor senses whether a pedestrian or a vehicle exists on a path;
when the laser transceiving sensor detects that a pedestrian passes through a path through laser light curtain scanning, a starting signal is sent to the linear laser; the linear laser emits linear laser;
and when the laser transceiving sensor detects that the pedestrian disappears in the path through laser light curtain scanning, a closing signal is sent to the linear laser.
10. The pedestrian safety protection method according to claim 9, wherein the laser transceiver sensor determines whether the pedestrian or the vehicle is present by detecting the moving object on the path and generating a scanned image of the moving object, and the line laser is activated when the pedestrian is determined.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110037310.0A CN112785853A (en) | 2021-01-12 | 2021-01-12 | Independent laser device and method for pedestrian safety protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110037310.0A CN112785853A (en) | 2021-01-12 | 2021-01-12 | Independent laser device and method for pedestrian safety protection |
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| CN215006939U (en) * | 2021-01-12 | 2021-12-03 | 深圳市砝石激光雷达有限公司 | Independent laser device for pedestrian safety protection |
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2021
- 2021-01-12 CN CN202110037310.0A patent/CN112785853A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050073437A1 (en) * | 2003-09-17 | 2005-04-07 | Michael Perri | Pedestrian presence indicator |
| CN101763723A (en) * | 2010-01-12 | 2010-06-30 | 杭州电子科技大学 | Zebra crossing pedestrian monitoring and warning device based on laser inspection |
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