On December 28, 2021, at the Venue of the Shenzhen International Convention and Exhibition Center of the 23rd High-tech Fair, driverless takeaway cars and trucks brought by enterprises. Nandu reporter Zhao Yanxiong photographed
Radar module for unmanned vehicles. Nandu reporter Zhao Yanxiong photographed
Nandu News Trainee reporter Yan Zhaoxin Since the beginning of this year, the scene of unmanned driving has been staged many times on the streets of Shenzhen, and while it has attracted much attention, its safety has always been the focus of people's attention. At this year's high-tech fair, driverless cars were all unveiled. How to ensure the travel safety of driverless vehicles? The on-site staff of the CHTF gave an answer.
Are driverless cars safe?
The operation area has covered nearly 100 stations in the main urban area of Shenzhen
In Hall 4 of the CHTF, the Yuanrong Qixing driverless car appeared in the exhibition hall of China Unicom, and its driverless vehicle network support was provided by China Unicom. China Unicom 5G innovation related staff introduced to nandu reporters that this driverless car can quickly make "judgments" like people in complex road conditions, not only can accurately identify traffic lights, various traffic participants, surrounding dynamic and static obstacles, but also complete continuous lane changes in busy traffic and avoid temporary roadblocks.
At present, the driverless car has been unveiled in Futian District, covering nearly 100 stations including the main urban area of Shenzhen, with a total operating section of more than 200 kilometers.
How to avoid cyber attacks?
Driverless vehicle driving data backhaul, take the encrypted private network to ensure security
At this year's National Two Sessions, Zhou Hongyi, member of the National Committee of the Chinese People's Political Consultative Conference, founder and chairman of the 360 Group, said in an interview with Nandu reporter that "software redefines the world" means that software will have loopholes and vulnerabilities will be attacked. "The biggest threat to urban security in the future is advanced cyberattacks. Such an attack can make a fully digitized city lose control in an instant, resulting in water and electricity and gas. "Therefore, driverless cybersecurity is crucial, and once it is attacked, it will bring fatal security issues."
How can I avoid cyber attacks? According to the staff aforementioned, the relevant data of the previous driverless vehicle driving will be transmitted back to the core network, and now after the network upgrade, the data will be transmitted back to the encrypted private network, and these data will be transmitted directly to the company's computer room for processing data, and the monitoring data has all been encrypted, "Do not take the core network, save the transmission path, and directly reduce the risk of data being attacked." ”
What should I do if the network lags and freezes?
The bandwidth is up to 60M, and there are priority guarantee network privileges
In addition to cyber attacks, network latency, caton, and other issues can also pose a security threat to the occupants of driverless cars. According to the above-mentioned staff, in terms of network latency, the previous delay was hundreds of milliseconds, and now it reaches 20 milliseconds after upgrading to a 5G network, and the bandwidth can reach 60M. Is there a possibility of disconnection during the unmanned driving on the road? How to avoid the occurrence of long network delays? The staff member said that it is generally unlikely to be broken, "We have increased the network privilege and will give priority to the network of driverless vehicles." Even if on the same base station, other people use the network to slow down, it will not slow down. ”
Even so, small-probability events, such as large-scale power outages, can still occur. What should I do when I encounter a low probability event? The above-mentioned staff said that the base station power has a backup power supply, generally there will be no power outage, even if there is a power outage, there are safety officers in the unmanned vehicle, they will take the vehicle back in time, or stop at the side of the road waiting for the staff to recover.