it is known that the road, which connects the east outer ring and the Provincial Road 104, is 11 kilometers long. It is an accident prone section. "These junctions are very narrow, generally only seven or eight meters, do not have the conditions to install signal lights." Li Yungang said: "how to build an intelligent early warning system for pedestrian crossing and vehicle crossing is a difficult problem."
Zhao Yuxi, deputy director of the Intelligent Transportation Institute of the Shandong Provincial Institute of communications, this set of pedestrian crossing warning system is jointly developed by the Intelligent Transportation Research Institute and the Ji'nan Zhuo Lun Intelligent Transportation Technology Co., Ltd., which has fully adopted the artificial intelligence research algorithm and the Internet of things technology, simply said the detection trigger unit It consists of three parts: warning unit and warning unit. A pedestrian detection trigger unit is set at an intersection to detect whether someone is going to pass the road; a vehicle warning unit is set at the front of the intersection to warn pedestrians on an approaching vehicle; the street track warning unit is composed of several embedded lights and the ground lamp interval is fixed on both sides of the road zebra line to be used for the vehicle. The car warns.
when a vehicle is about 300 to 400 meters from the intersection, a pedestrian crossing will trigger a detection device when a pedestrian crossing, when the early warning display is shining, and the ground light that makes up the pedestrian crossing is also shining. If the vehicle radio is in the open state, the radio signal will automatically insert the prompts of "pedestrians at the front crossing, slow down by slowing down". At the same time, if the system is logically judged, the main road is on the possibility of driving a vehicle and bumping into a passer - by pedestrian, it will synchronize a reminder to pedestrians passing through the road, and the device set at the intersection will also make a sound, "left to the car, pay attention to avoidance", and set the same hint to the warning screen at the intersection. The text information of the content to remind pedestrians.
early warning system is suitable for most county and township roads
Jining high tech traffic police have installed 7 sets of pedestrian crossing warning system on this 11 km long road, 8 reminding car reminding system, a total of 80 yuan. Since the commissioning of the equipment in June 1st, the effect has been obvious. It has been in the past more than 20 days since its opening, and there has been no traffic accident on the road.
"if no pedestrians cross the street, all equipment will not trigger and will not cause any impact on vehicle traffic." Zhao Yuxi said. Similar to the principle of pedestrian crossing early warning system, they also have a set of intersection reminding system to be put into use together, a two-way reminding of vehicles at the three forked intersection of bad sight, which greatly reduces the probability of accident.
Zhao Yuxi, Zhao Yuxi introduced, pedestrians early warning and remittance warning system is for the provincial road, county and township roads and other roads, not suitable for the installation of signal light control of the intersection design and development, can be called the county road accident star, at most of the intersection can be used.
it is understood that the automatic warning system for pedestrians crossing the street without signal lights is the first case in the province. Jining high tech traffic police is further improving the system, and the next step is likely to be promoted to other regions.