CN206741717U - Pedestrian's street crossing automatic early-warning system - Google Patents

Abstract

The utility model provides an automatic early warning system for pedestrians crossing the street, which includes a pedestrian judging system, a weather and black and white night detection station, two wireless transceivers, a reminder device and a power supply unit; the pedestrian judging system includes a human body pyroelectric sensor and a pedestrian judging chip, The output end of the human body pyroelectric sensor is connected with the pedestrian determination chip, and the output end of the pedestrian determination chip is connected with the reminder device through the first wireless transceiver; the weather and black and white night monitoring station includes the weather and black and white night monitoring station main control chip, level Convert chips and various sensors. The utility model can effectively solve the problem of mountainous roads, interactive overpass ramp exits, suburban school intersections, tunnel exits, continuous downhill and sharp turning roads in cities in my country with many smog, rain and snow, many sand and dust, and insufficient road lighting at night. Collision accidents between motor vehicles and pedestrians at intersections on dangerous roads.

Description

Pedestrian crossing automatic warning system

technical field

The utility model belongs to the field of early warning for pedestrians crossing the street, in particular to a human body signal for crossing the road which is sent to a remote driver through wireless communication to remind the driver to pay attention to the pedestrians crossing the intersection, and can automatically warn pedestrians and traffic in bad weather A pedestrian crossing automatic warning system.

Background technique

With the increase in the number of motor vehicles and the population, mountainous roads, interactive overpass ramp exits, suburban school intersections, tunnel exits, continuous downhill roads in cities with smog, snow, rain, sand and dust, and insufficient road lighting at night Collision accidents between motor vehicles and pedestrians at crossings often occur on slopes and sharp turning roads. The frequent occurrence of accidents has brought irreparable pain to the injured and their families. However, it is currently used to remind drivers worldwide. Pay attention to pedestrian warning signs and red and blue high-light warning lights, which are relatively basic devices that do not have the ability to adapt to changes in road terrain and weather lighting environments. If the overall transformation of traffic road lines is expensive, the time period will be long and it will consume energy. A large number of human and material resources; Therefore, it is necessary to invent an automatic warning system for pedestrian crossings with road terrain and weather adaptability, low cost, and simple erection.

Utility model content

In order to solve the problems of the background technology, the utility model provides an automatic warning system for pedestrians crossing the street, which sends the human body signal of crossing the road to the driver in the distance through wireless communication to remind the driver to pay attention to the pedestrians who are crossing the intersection, and can Automatic warning of pedestrians and traffic in weather conditions.

The technical solution of the utility model is:

The pedestrian crossing automatic warning system is special in that it includes a pedestrian determination system, a weather and black and white night detection station 2, a first wireless transceiver 1, a second wireless transceiver 3, a reminder device and a power supply unit;

The pedestrian judging system includes scanning the ground to sense the human body pyroelectric sensor (13) and the pedestrian judging chip of the human body signal on the non-motor vehicle lane, the output end of the human body pyroelectric sensor (13) is connected with the pedestrian judging chip, The output end of the pedestrian judgment chip is connected with the reminder device through the first wireless transceiver 1;

Described weather and black-and-white night monitoring station 2 comprise weather and black-and-white night monitoring station main control chip, level conversion chip and following at least one sensor: rain sensor, humidity sensor, photosensitive sensor, particulate matter sensor; Output terminals of various sensors Connect with weather and black-and-white night monitoring station main control chip through level conversion chip; The output end of described weather and black-and-white night monitoring station main control chip is connected with pedestrian judgment chip by second wireless transceiver 3;

The reminder device includes a zebra crossing contour light 10 and/or a laser projector 14 for projecting a zebra crossing, and the pedestrian determination chip sends a signal to the zebra crossing contour light 10 or the laser projector 14 through the first wireless transceiver 1;

The power supply unit supplies power to the pedestrian judging system, the weather and black and white night detection station, the reminder device, the first wireless transceiver 1 and the second wireless transceiver 3 respectively.

Preferably, the reminding device also includes a driving warning post arranged at least 5 meters away from the intersection and on the right side of the road for warning vehicles; the driving warning post is provided with a third wireless transceiver 4 and a driving prompt screen 5. The third wireless transceiver receives the signal from the pedestrian determination chip and sends it to the driving prompt screen 5 .

Preferably, the reminding device also includes a pedestrian reminder column arranged at both ends of the zebra crossing, the pedestrian reminder column is provided with a red and yellow two-color high-gloss LED reminder light 8, and the pedestrian determination chip sends a signal to the pedestrian through the first wireless transceiver 1. Red and yellow two-color high-gloss LED indicator light 8.

Preferably, the first wireless transceiver 1, the pedestrian determination chip, the human body pyroelectric sensor 13, and the laser projector 14 can be fixed on the pedestrian warning pole.

Preferably, the zebra crossing outline light 10 is a blue flexible light-emitting LED.

The utility model has the advantages of:

1] The weather and black and white night monitoring station can detect bad weather such as rain, snow, fog, haze, hail, sand and dust through rain sensors, humidity sensors, and particle detection sensors, and black and white nights can be detected through light sensors. In bad weather such as rain, snow, fog, haze, hail, sand and dust, when pedestrians are detected at the intersection, the zebra crossing outline lights and laser projectors work to prevent pedestrians from passing through the intersection in bad weather on special road sections. Pedestrians cannot be found within a short distance while driving, and zebra crossing outline lights and laser projectors are used as deceleration area signs in bad weather to ensure the safety of pedestrians and drivers; it can effectively solve the problems of smog, rain, snow, and dust in our country Collision accidents between motor vehicles and pedestrians at crossings on dangerous roads such as mountainous roads in cities with insufficient road lighting at night, interactive overpass ramp exits, suburban school intersections, tunnel exits, continuous downhill and sharp turning roads.

2] The driving reminder column of this system can also notify the driving in the distance in time, and pay attention to the pedestrians in front.

3] The pedestrian reminder column of this system can also provide daily reminders to pedestrians.

4] The system can be erected quickly, does not require line modification, is convenient for maintenance and management, and has the ability to adapt to the environment and self-regulate.

Description of drawings

Figure 1: The overall structure of the pedestrian crossing automatic warning system;

Figure 2: Schematic diagram of the structure of the pedestrian reminder column;

Figure 3: Schematic diagram of the structural composition of the driving prompt column;

Figure 4: Control schematic diagram of the circuit part of the weather and black and white night detection station;

Figure 5: Control schematic diagram of the circuit part of the pedestrian determination system;

Chip circuit control schematic

Reference signs are: 1. the first wireless transceiver; 2. weather and black and white night detection station; 3. the second wireless transceiver; 4. the third wireless transceiver; 5. driving prompt screen; 8. red and yellow two-color highlights LED prompt light; 9. Solar panel; 10. Zebra crossing outline light; 11. Pedestrian prompt screen; 13. Human body pyroelectric sensor; 14. Laser projector.

detailed description

The utility model is further illustrated by the following examples, and the utility model is not limited in any way. Under the premise of not departing from the technical solution of the utility model, any changes that are easily realized by those of ordinary skill in the art made by the utility model Or changes will fall within the scope of the claims of the present utility model.

As shown in Figure 1, the pedestrian crossing automatic warning system includes a pedestrian determination system, a weather and black and white night detection station 2, a first wireless transceiver 1, a second wireless transceiver 3, a reminder device and a power supply unit, and the power supply unit uses a solar battery The board supplies power to the pedestrian judging system, the weather and black and white night detection station, the reminder device, the first wireless transceiver 1 and the second wireless transceiver 3 respectively.

As Fig. 5, described pedestrian judging system comprises scanning ground to sense human body pyroelectric sensor (13) and pedestrian judging chip of human body signal on bicycle lane, the output end of described human body pyroelectric sensor (13) and pedestrian The determination chip is connected, and the output terminal of the pedestrian determination chip is connected with the reminder device through the first wireless transceiver 1; the pedestrian determination chip adopts the MK60N512VLL100 chip.

As Fig. 4, described weather and black-and-white night monitoring station 2 comprise weather and black-and-white night monitoring station main control chip, level conversion chip and following at least one sensor: rain sensor, humidity sensor, photosensitive sensor, particle sensor; Rain sensor , humidity sensor, particle detection sensor, etc. can detect rain, snow, fog, haze, hail, sand and other severe weather, and detect black and white night through light sensor. The output end of the sensor is connected to the main control chip of the weather and black and white night monitoring station through a level conversion chip; the output end of the main control chip of the weather and black and white night monitoring station is connected to the pedestrian determination chip through the second wireless transceiver 3 .

The reminder device includes a zebra crossing contour light 10 and/or a laser projector 14 for projecting a zebra crossing. The contour light and the laser projection device can be used simultaneously or alternatively according to the road topography. The pedestrian judgment chip sends a signal to the zebra crossing contour light 10 or the laser projector 14 through the first wireless transceiver 1; the zebra crossing contour light is a blue flexible light-emitting LED inlaid on the road surface, and its luminous color is selected blue to avoid Conflict with traffic lights, and will not cause visual stimulation to the driver, and will not affect the driver's normal judgment of traffic lights. The mosaic method can learn from the mosaic method of fountain lights. The light path projected by the laser can cover the entire zebra crossing.

Preferably, the reminding device also includes a driving reminder column set at least 50 meters away from the intersection (the distance can be set according to the actual situation) and on the right side of the road for warning vehicles; as shown in Figure 3, the driving reminder A third wireless transceiver 4 and a driving prompt screen 5 are arranged on the column, and the third wireless transceiver receives the signal from the pedestrian determination chip and sends it to the driving prompt screen 5 . In order to facilitate power supply, a solar panel 9 is also arranged on the driving prompt column as its power supply unit.

Described reminding device also comprises the pedestrian prompting post that is arranged on zebra crossing two ends, as Fig. 2, described pedestrian prompting post is provided with red and yellow two-color highlight LED prompt lamp 8, and described pedestrian judges chip to send signal by first wireless transceiver 1 Give the red and yellow two-color high-gloss LED prompt light 8, the red-yellow two-color high-gloss LED prompt light is yellow flickering during normal weather or daytime, and is red flickering during bad weather or night. In addition, the first wireless transceiver 1, the pedestrian determination chip, the human body pyroelectric sensor 13, and the laser projector 14 can be fixed on the pedestrian prompting column, or can be fixed on other roadside traffic facilities. Pedestrian reminder screen 11 can be set. In order to facilitate power supply, a solar panel 9 is also arranged on the pedestrian prompting post as its power supply unit.

The light information received by the solar panel is processed by the power processing circuit to charge the battery, and the battery is used as the power supply for the system at night or in bad weather. The solar panels are installed on the pedestrian warning pole and the driving warning pole, and the battery is installed in the pole through waterproof treatment. Select the appropriate type of solar panel, battery capacity and waterproof level according to the average daily light receiving time and precipitation in different cities, so I won’t go into details here.

The utility model adopts the wireless transceiver for communication, does not need to carry out line modification, and is not affected by the terrain, and saves a lot of cost compared with the wired communication mode.

The working process of the present utility model is as follows, when the main control chip of the weather and black and white night monitoring station receives the night trigger signal, the main control chip of the weather and black and white night monitoring station communicates with the pedestrian determination chip through the second wireless transceiver 3, and the pedestrian determination chip Control the pyroelectric sensor 13 of the human body to start work. When a pedestrian walks on the zebra crossing that does not contain a non-motor vehicle lane, the pyroelectric sensor 13 of the human body receives a signal, and the laser projector 13 or the zebra crossing contour light 10 is controlled by the pedestrian determination chip. Brighten the ground to remind the driver; meanwhile, the pedestrian judging chip can send a dangerous signal to the driving prompt screen 5 on the driving reminder post through the first wireless transceiver 1 and the third wireless transceiver 4, and the driving prompt screen 5 displays warning information: There are pedestrians passing ahead, please pay attention to words such as avoidance to remind the driver. At this time, if the driver is driving far away from pedestrians, he can see the reminder information on the driving prompt screen 5, and if he is driving nearer, he can clearly see the lit zebra crossing outline lights or the ground imaging of laser projection. , in order to achieve effective reminders in long and short distances, multi-terrain, and dark night environments. If the pedestrian passes through the intersection safely, the human body pyroelectric sensor 13 will no longer receive the human body signal, the ground imaging of the zebra crossing contour light or laser projection will go out, and the driving prompt screen 5 will resume displaying normal prompting words. The driving prompt screen 5 of driving prompt column only can display warning information when pedestrians pass through, if there is no alarm, it can be used as traffic daily notice screen, saving energy consumption.

When the main control chip of the weather and black and white night monitoring station receives the trigger signal of severe weather (rain, snow, haze, sand and dust sensors), it can adopt the method of setting continuous warning to ensure the safety of pedestrians. In severe weather such as snow, fog, haze, hail, sand and dust, regardless of whether there are pedestrians passing through the intersection, the zebra crossing outline lights and laser projectors will always work and will no longer be controlled by the human body pyroelectric sensor 13. When pedestrians pass through an intersection in bad weather, the driver cannot guarantee a reliable and rapid stop after finding pedestrians within a short distance. Zebra crossing outline lights and laser projectors are used as deceleration area signs in bad weather to ensure the safety of pedestrians and drivers; In addition, the pedestrian prompt screen and the driving prompt screen can also continuously display warning information such as walking or driving carefully in bad weather. Only when the third wireless transceiver receives a command to stop the continuous warning, the zebra crossing contour light or the ground imaging of the laser projection will be extinguished, and the pedestrian prompt screen and the driving prompt screen will display normal prompt words. The command for continuous warning is generated during severe weather.

In this way, the driver can accurately and intuitively predict the existence of pedestrians in advance no matter what terrain, weather conditions and lighting environment they are in, so as to ensure the safe driving of the driver and the safe passage of pedestrians to the greatest extent.

Claims (5)

1. Pedestrian crossing automatic warning system, characterized in that: comprises pedestrian determination system, weather and black and white night detection station (2), first wireless transceiver (1), second wireless transceiver (3), reminder device and power supply unit ; The pedestrian judging system includes scanning the ground to perceive the human body pyroelectric sensor (13) and the pedestrian judging chip of the human body signal on the non-motor vehicle lane, the output end of the human body pyroelectric sensor (13) is connected with the pedestrian judging chip, The output end of the pedestrian determination chip is connected to the reminder device through the first wireless transceiver (1); The weather and black and white night monitoring station (2) includes a main control chip of the weather and black and white night monitoring station, a level conversion chip and at least one of the following sensors: rain sensor, humidity sensor, light sensor, particle sensor; The output end is connected to the main control chip of the weather and black and white night monitoring station through a level conversion chip; the output end of the main control chip of the weather and black and white night monitoring station is connected to the pedestrian determination chip through a second wireless transceiver (3); The reminder device includes a zebra crossing contour light (10) and/or a laser projector (14) for projecting a zebra crossing, and the pedestrian judging chip sends a signal to the zebra crossing contour light (10) or laser projector (14); The power supply unit respectively supplies power to the pedestrian judging system, the weather and black and white night detection station, the first wireless transceiver (1), the second wireless transceiver (3), and the reminder device. 2. The pedestrian crossing automatic early warning system according to claim 1, is characterized in that: described reminding device also comprises being arranged on at least 5 meters away from crossing and is positioned at the driving prompt post for warning vehicle on the right side of road; A third wireless transceiver (4) and a driving prompt screen (5) are arranged on the driving reminder column, and the third wireless transceiver receives a signal from the pedestrian determination chip and sends it to the driving prompt screen (5). 3. the pedestrian crossing automatic warning system according to claim 2, is characterized in that: described reminding device also comprises the pedestrian prompting post that is arranged on zebra crossing two ends, and described pedestrian prompting post is provided with red and yellow two-color high-gloss LED reminder lamp ( 8), the pedestrian judging chip sends a signal to the red and yellow two-color highlight LED indicator light (8) through the first wireless transceiver (1). 4. The pedestrian crossing automatic warning system according to claim 3, characterized in that: the first wireless transceiver (1), the pedestrian judgment chip, the human body pyroelectric sensor (13), and the laser projector (14) are fixed On the pedestrian warning pole. 5. The pedestrian crossing automatic warning system according to claim 4, characterized in that: the zebra crossing outline light (10) is a blue flexible light-emitting LED.