V2X communication technology has become the focus of competition.

In the field of unmanned vehicle, an open form resultant force has gradually become the industry consensus. The resultant force is not only in the field of research, but also applications.

Intelligent made cars in China (unmanned vehicles) is sped up.

Recently, the Guangzhou municipal committee formally promulgated the Guangzhou about the intelligent snatched the vehicle road test the guidance of the work (draft) "(hereinafter referred to as" draft ").After Beijing, Shanghai, Chongqing, Shenzhen and other cities have been issued relevant detailed rules for the road test. Made cars and what this means is that intelligence has laid to a growing number of cities, the future will formally on the road in the city.

Mention intelligent made car, always involves two parts. Car terminal intelligent evolution is on the one hand, on the other hand is change in the form of transportation. "Based on a new generation of artificial intelligence, big data, cloud computing technology, the future can realize the real intelligent traffic, it is a big ecosystem." Topics intelligent made car, department of automotive engineering, Tsinghua university professor li pointed out.

Intelligent transportation formation and maturity of the ecosystem, means that the relevant technical system, the industrial ecological system and so on a series of breakthrough after to industry breakthrough, "including high precision map based data platform, cloud control foundation platform, intelligent vehicle terminal computing platform, etc., need to establish ecological related to form a breakthrough."Mr. Li said.

Network communication

According to the China mail tunnels courtyard "2017 car networking white paper points out that the key technology of network distribution in" side - tube - cloud "three levels.

Among them, the "end" level including intelligent vehicle and roadside facilities, snatched process is accelerated, the key technology including automotive electronics, vehicle operating system, etc.;"Tube" level key technologies including 4 g / 5 g on-board cellular technology, LTE V2X and 802.11 p direct connect wireless communication technology, direct V2X wireless communication technology is currently the focus of competition. The core of the "cloud" includes connection management, data management, ability and opening business support car networking platform technology.

") on the (car terminal sensor is equivalent to the eyes. In addition to the eyes, ears and mouth that we often also will need to perception." Datang telecom technology industry group car networking product line director Ren Shiyan explains, "so communication actually brings a new perception channels, through radio, sending and receiving information, can cover over the horizon, through such cover makes sense become more secure and reliable vehicle."

In fact, for a single vehicle plus "ears" and "mouth", thus forming the ecological system intelligent transportation, car is connected to the Internet "advanced" state. In this state, based on wireless communication, sensing detection technology to car road information acquisition, by car and car, car and road between the interaction and sharing of information, can realize intelligent coordination and cooperation between vehicle and infrastructure, so as to optimize the use of system resources, improving road traffic safety, ease traffic congestion.

In the "tube" technology, direct model V2X wireless communication technology has entered the competition stage.It is reported that direct mode V2X wireless communication is a new kind of communication for cars and road network technology, the existing technical route.

One is the DSRC (Dedicated Short Range Communications dedicated short-range communication technology), which is based on IEEE802.11 p the underlying communication protocol and IEEE1609 series standards of technology;2 it is to our country enterprise leading to promote LTE - V2X technology, based on the 4 g technology to realize the car communication, based on LTE cellular network for V2X car networking proprietary protocol, in March 2017 the technology in the international standards organization 3 GPP standardization work.

Zhiqin Wang, vice President of the China academy of information and communication has said that LTE - V2X related standard in China was basically completed at the end of 2017, including LTE - V2X architecture, frequency spectrum, the air interface, network layer and application layer, security, etc. Specific applications, in May this year, in Wuxi city to start the car networking (LTE - V2X) city level demonstration application of major projects, planning the open road test research, city size demonstration application, makes the car networking industry base made three stages of intelligence automobile scale application, implement the time from 2017 to the end of 2020.

Question unanswered

V2X communication technology has become the focus of competition, but there is still a significant problem for solution.

With Intel related research for automatic driving cars, li said, the team will choose V2X intelligent made car innovative applications as a research field, which has three directions: based on information V2X build smart made the unification of the automobile driving risk evaluation mechanism;V2X based intelligent snatched the car under the complex traffic environment organization and coordination; Under the non-ideal V2X communications, intelligent snatched the car key application about information quality have what demand.

According to li, intelligent made cars for safety judgment is extremely difficult, and complicated traffic situations in China, the difficulty to further improve. "We want to see can borrow V2X advantage, borrow V2X communications technology, establish real smart snatched the car under the complex condition of safety evaluation, establish a unified mechanism." which involves regional theory and its application research on the traffic safety, applicability improved, including practical calibration method and safety assessment application.

Follow by the complex traffic environment, organization and coordination of intelligent made cars. In fact, based on V2X technology can realize multiple bus connection, the organization mode of the construction of vehicle queue, connection mode and synergy also become an important proposition, which involves complex system modeling, control, selection basis.

"We chose the fork in the road without traffic signal lamp intelligent automobile traffic scene. The simplest method is to use the dotted line for multimodal organization, using the communication topology, do intersection conflict model build, avoid conflict of geometry configuration and how this case distribution of controller design, etc."Mr. Li said.

In addition, because the current road vehicle is given priority to with traditional vehicle, so the communication to the car and car, car and road intelligent transportation ecosystem "advanced" state transition in the process, not be able to avoid a car smart car with the traditional mixed traffic way. Traditional car sometimes may not completely obey the traffic rules, this how to balance the traffic system in place to ensure safety?

Intel unmanned solution senior chief engineer, chief system architect JackWeast said, Intel introduced liability sensitive security model (RSS), put human in the complex road conditions judgment standard in the machine system, told the machine in which dangerous environment should be how to respond, to ensure that the smart cars on the road to ensure safety.

"In the simulation test of RSS, fully automated driving data formula is set according to the human driving way and habits.", "said JackWeast simulation test show as a result, the automatic vehicle driving response based on RSS is the personification of the operation, and human drivers is basically the same."

Ecological fusion

However, JackWeast also stressed that the current RSS is still only at the early stage.

According to JackWeast, traditional intelligent driving three levels including perception, decision-making, planning and action means in the planning and operation of the application of RSS model adds a layer between layers." We want to ensure that artificial intelligence based planning ability, and make sure that it is able to in the actual environment is not a problem, that for any enterprise is a huge technical challenge, only by one company alone is not enough, we need the whole industry to participate together."

In fact, the industry research institutions, academic institutions, combining enterprise algorithm and technology, to further ensure the safety of the smart car model, so as to improve the accuracy of the models and the safety of the vehicle. Under the cooperative effect of driving, Intel has established intelligent made car university cooperative research center, with Tsinghua university, institute of automation, Chinese academy of sciences, China signed a cooperation agreement, jointly promote the self-driving cars related research.

"Smart made cars in the true sense of industrialization need a series of work, including the technical innovation system, the ecological system of auto industry, network facilities system, regulations, standards, products regulatory system, information security system and a series of technical breakthrough."Mr Li said.

In particular, after the cooperate with Intel, li to V2X related research team can combine Intel based on 5 g, cloud, and the FPGA technology module on the basis of the accumulation, conducting joint research, thus more conducive to achieve results.

And through an open form resultant force has gradually become the industry consensus the resultant force is not only in the field of research, and applications. In April 2017, Baidu launched the Apollo open software platform, enables OEMs in combination with vehicle and hardware system to quickly build a belongs to own a complete automated driving system. Apollo platform now, Baidu has more than 100 partners "alliance", including the vehicle and parts manufacturers, Daimler, ford, Beijing auto, faw, chery, vehicle manufacturers such as sensors and chip maker Velodyne, Intel and nvidia; Cloud service providers to Microsoft and transport service provider ShouQi about car, etc.

Director of Intel's global vice President and general manager of China Yang xu, Intel is exploring with saic group, Changan auto, faw Hongqi, four dimensional figure, ali cloud, neusoft, new industry cooperation. On intelligent made cars to achieve "the whole industry to upgrade, to promote is extremely important."

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