On September 7, CCTV 13 news broadcasting studio reported that "the first pilot area of vehicle network in Wuxi, Jiangsu Province was unveiled". The scene of cooperation between vehicles and vehicles, vehicles and people, vehicles and roads, vehicles and service platforms has become a hot spot. Among them, the "active and intelligent" series of road scenarios jointly created by China Mobile, Ministry of Public Security Traffic Office, Wuxi Traffic Police, Huawei, Tian'an Zhilian, Saikang Jiaoan and other units of the strategic partners of the project team of the National Pilot Area of Vehicle Networking, are on the road of achievement promotion through demonstration application. The Wechat Public Number of China Road Traffic Safety Think Tank Committee has released scenarios and scenarios successively, and the Intelligent Network Linked Watershed Section Early Warning System.

1. Pain Points of Low-lying Bridge and Culvert Waterlogged Sections

In low-lying sections such as bridges and culverts, it is easy to accumulate water after heavy rain and snow, which brings great hidden dangers to traffic safety. Over the years, there have been many kinds of traffic accidents caused by road water in all parts of the country, so it is urgent to solve this problem.

2. Introduction of Intelligent Network Early Warning System for Linked Water Section

System components: Huawei C-V2X RSU (Road Side Unit) dual-mode roadside unit + water depth detection device + Saikang I2V active luminous sign + I2V warning facilities.

The working principle of the system:

(1) Water accumulation was detected by the system:

a. The system control chip sends instructions to the corresponding speed limit signs and warning signs, and sends the long-distance strong warning information to the vehicle driver through stroboscopic mode. The driver takes corresponding measures to give way in advance.

b. Event information such as water depth is sent to on-board OBU (On Board Unit) equipment through RSU to realize active notification and prompt the vehicle to decelerate automatically or the driver to give way actively until parking.

c. The digital way of speed limit sign is sent to on board OBU (On Board Unit) equipment by RSU.

(2) The whole event information transmission process is recorded in real time on the cloud platform, and the cloud platform can also know the working status of the entire system facilities in real time.

1. Functional Advantage of Intelligent Network Early Warning System for Linked Water Section

(1) The integration of networking, chip, sensor, data operation and all-weather visualization under the condition of the new generation of communication technology is stable and reliable.

(2) Automatically detect the status of water accumulation, actively send information on risk events, and take active measures by vehicles.

(3) Real-time data interaction among human, vehicle, road and environment forms a collaborative closed-loop.