[0036]In this example, the present invention will be described in detail below with reference to the specific embodiments and the accompanying drawings.
[0037]Seefigure 1 ,figure 2 ,image 3 withFigure 4 A pedestrian safety laser holographic protection system 100 provided by the embodiment of the present invention is shown for protecting a pedestrian security crossing the road, including a pair of laser piles 10, and management for centralizing management and maintenance of the laser pile 10. The platform 20 and the remote control terminal are fixedly mounted on both ends of the traverse cross path, and the laser pile 10 is connected to the management platform 20 and the remote control terminal through a wireless communication network. The management platform 20 and the location The remote control terminal is configured to monitor the working state of the laser pile 10 and the opening and closing of the laser pile 10; the laser pile 10 includes a human body sensing device 11, a laser emitting device 12, and a light sensor, the light sensor for Monitor the external environmental light and allow the laser pile 10 to be opened when the ambient light is too dark, and the body sensing device 11 is used to monitor whether there is a pedestrians in the human crosswalk, the laser emission device 12 for transmitting a laser and irradiates the laser irradiation. To pedestrians, pay attention to avoid pedestrians.
[0038]Further, the human body sensing device 11 includes an infrared detecting device and a laser radar that detects the presence and movement of the human body through the thermoelectric element, which is used to detect whether there is a pedestrian in the crosswalk range, and pedestrians Track.
[0039]Specifically, the pedestrian safety laser holographic protective system 100 is used in the night, or when the foggy day, or when the rays caused by the bad weather such as heavy rain, avoiding the poor line of the vehicle driving, giving a pedestrian crossing the road on the crosswalk It is dangerous to bike.
[0040]Further, the laser radar uses a laser ranging sensor or a scanning laser radar. The laser ranging sensor is not changed, and the plurality of the laser ranging sensor simultaneously aims to monitor the crosswalk, the scanning laser. The scanning angle of the radar is 280 degrees, and the monitoring range of the laser ranging sensor and the scanning laser radar covers the entire man's crosswalk.
[0041]Specifically, the laser ranging sensor is used to detect the rapid moving object and the peripheral environment, a plurality of the laser ranging sensor aims and covers the monitoring area, each of which is different from the monitoring point of each of the laser ranging sensors. The monitoring point of the laser ranging sensor covers the crosswalk area that needs to be monitored.
[0042]Specifically, the scanning area of the scanning laser radar covers a crosswalk that needs to be monitored.
[0043]Further, the laser emitting device 12 includes a plurality of laser emitters, and the plurality of the laser emitter securely mounted in the laser pile 10, and a plurality of laser emitters emitted by a laser form a laser. The highlight of the laser projection optical path is 25 to 30 cm.
[0044]Specifically, a plurality of the laser emitter can be reduced, and the transmit power of each of the laser emitters can be reduced, and each of the laser emission directions of each of the laser emitters is different, and the laser light emitted by the plurality of the laser emitter. Net shape and finally form the laser projection light.
[0045]Specifically, the height of the laser projection optical path should not be too high, and the laser transmitter is avoided to damage the human eye.
[0046]Specifically, the laser projection optical path is projected to the leg of the pedestrian. When people walk, the legs have the highest amplitude, and the objects under the laser irradiation, which can easily attract the attention of people, which can be easier to be Past vehicle discovery.
[0047]Specifically, in order to avoid hazards in human health to avoid lasers, the laser radar uses a primary human eye safety laser, the laser emitter uses a three-level personal safety laser.
[0048]Specifically, the body induction device 11 and the laser emitting device 12 have a maximum width of 50 meters, and 16 lanes can be covered.
[0049]Further, the laser pile 10 employs an emission type laser pile 10 or a separate laser pile 10 facing both ends of the crosswalk, and when the human body sensing device 11 monitors the cross track When the pedestrians passed, the laser emitting device 12 of the laser shot 10 on both ends of the traverse laser pile 10 is simultaneously transmitted to the laser projection optical path to cover the entire man's crosswalk.
[0050]Further, the independent laser pile 10 is paired on the side of the crosswalk or alone on the side of the cross track, and when a pedestrians pass the crosswalk, the human body sensing device 11 monitors coverage of the body sensing device 11 of the independent laser pile 10. In the range, the body sensing device 11 monitors the passage of the laser emission device 12 of the independent laser pile 10 emits laser light when the pedestrians are passed, and the laser projection optical path covers a crosswalk within the surveillance range.
[0051]Specifically, the laser pile 10 can be paired, or can be installed independently. The laser pile 10 is installed on both sides of the wider road to ensure the full coverage of the human crosswalk. On a narrow road, when the laser pile 10 can realize the full coverage of the crosswalk, only one of the laser piles 10 can be installed to save equipment investment.
[0052]Specifically, when the laser pile 10 is mounted, the contained laser pile 10 or the independent laser pile 10 may be employed; when the laser pile 10 is installed independently, the independent laser pile 10 should be employed. .
[0053]Further, the laser pile 10 also includes a power supply device 13, the power supply device 13 employs a distal power supply or a proximal power supply mode, the remote power supply mode is connected to a remote power supply device, the proximal end Power supply is powered by solar cells or photovoltaic batteries.
[0054]Specifically, the laser pile 10 also includes a base 14 having a cable via, the power supply cable and a signal cable to the cable through hole.
[0055]Specifically, the laser pile 10 is fixedly mounted on both ends of the crosswalk, in the remote power supply mode, the roadside can be trough to lay the cable line. In the proximal power supply mode, a mounting column is disposed above the laser pile 10, the solar cell or the photovoltaic battery being mounted to the top end of the mounting column, the power supply cable being in the mounting column.
[0056]Specifically, in the distal power supply mode, it can be connected to the nearby street light power.
[0057]Further, the management platform 20 and the remote control terminal are used to acquire the device mounting position of the laser pile 10, the operating state of the monitoring device, the operation of the statistical device, and control the opening and closing method of the laser pile 10. The inspection of the device is concluded; the remote control terminal includes a mobile terminal APP, the mobile terminal APP is further configured to control the opening and closing of the laser pile 10.
[0058]Specifically, the mobile terminal App acts as a remote control terminal, remote monitoring, data statistics, and system maintenance of the laser pile 10 can be implemented, so that the management platform 20 does not need to be worthwhile.
[0059]And, please refer toFigure 5A pedestrian safety laser holographic protection method is shown, and the pedestrian safety laser holographic protection system 100 as described above includes the following steps:
[0060]Step 1, build a pedestrian safety laser holographic protection system platform, install laser pile 10;
[0061]Step Second, the light sensor monitors the brightness of the ambient light, when the ambient light is too dark, go to step three;
[0062]Step three, the human body induction device 11 monitors the transverse road of the person, whether there is an object to break into the crosswalk; there is, go to step four; no, go to step two;
[0063]Step 4, the human body sensing device 11 monitors the mobile route of the object, which is consistent with the road direction. It is judged that the entry into the object is a vehicle, and the mobile route is vertical in the direction of the road, and judges that the entry into the object is a pedestrian. Step five;
[0064]Step 5, turn on the laser emission device 12;
[0065]Step 6. Whether the conditions to close the laser emission device 12 are met, it is to step seven, no, go to step five;
[0066]Step 7. Turn off the laser emission device 12 to step I.
[0067]Further, the ambient light in step II is too dark to include nighttime and lateral lights over dark lines.
[0068]Further, the conditions of the shutting down the laser emitting device 12 in step six, including two judgments:
[0069]Judgment Method 1, the delay mode, starting from the start of the laser emission device 12, after opening the preset value, the laser emission device 12 is turned off, that is, the laser emission device 12 is turned off.
[0070]Judgment mode 2, monitoring method, the human body sensing device 11 monitors whether the pedestrian leaves the monitoring area, when there is a pedestrian in the monitoring area, the laser emission device 12 holds the opening state, when there is no pedestrian in the monitoring area, turn off the laser reflecting device.
[0071]Further, after the laser emitting device 12 in the step 5, the laser light transmitted by the laser emitting device 12 constitutes a mesh laser projection optical path, the mesh laser projection optical path covers a cross track in the monitoring range, when a pedestrian passes, irradiate Pedestrian legs to warn past vehicles.
[0072]Further, the human body sensing device 11 in step three monitors the transverse tract, including two monitoring methods:
[0073]Method 1. Monitoring of multiple laser ranging sensors, a target area of multiple laser ranging sensors covered by monitoring;
[0074]Method 2, using scanning laser radar monitoring, scanning range of scanning laser radar covers the crosswalk to monitor.
[0075]Further, the opening method of the laser emitting device 12 in step 5 includes three:
[0076]On the opening mode, the synchronous opening is turned on, and the pair of the laser emitting device 12 at both ends of the pedestrian crosswinter uses a synchronous mode of operation, that is, when the pedestrians are detected, the laser emission device 12 is simultaneously turned on, while closing;
[0077]On the opening mode, the asynchronous opening is turned on, and the laser emitting device 12 is set in the pair of crossways, that is, when the pedestrians are detected, the laser emission device 12 operates independently, and the pedestrian is monitored in its own monitoring. Upon not monitoring pedestrians;
[0078]On the opening mode, the timing is turned on. When the light sensor monitors the ambient light, turn on the laser emission device 12 until the light sensor monitors the brightness of the ambient light to reach the preset value, and the line of sight of the vehicle is good.
[0079]In the above-mentioned pedestrian safety laser holographic protection system 100 and method, the management platform 20 and the remote control terminal are centrally managed and monitoring the laser pile 10, when there is a poor environment, and the human body feels The device 11 monitors a pedestrian in the monitoring range to turn on the laser emitting device 12, the laser transmitting device 12 transmits the laser light to the pedestrian leg, and the traveler of the passenger will see the moving pedestrian leg contour to prompt the passive vehicle. Some pedestrians are crossing the road, and the passing vehicles need to slow down, pay attention to avoid. Thereby improving road traffic safety and reduces traffic accidents. The structure of the present invention is simple, easy to achieve, low cost, easy to promote.
[0080]It should be noted that only the preferred embodiments of the present invention are not intended to limit the invention, and those skilled in the art can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. according to the spirit and principles of the present invention should be included within the scope of the invention.
