Remember the scene in "Let the Bullets Fly" where Ma Bangde took the magistrate's wife and Tang Shiye on the train to eat hot pot and sing songs? If it was not for Zhang Mazi's appearance, they might have arrived in Cannes safely, became the county magistrate and his wife, and lived a happy life.
Pause, we are not discussing Ma Bangde and Zhang Mazi today. What we are discussing is "eating hot pot and singing." Although they are riding a train, a train powered by horsepower, they have almost realized the application scenarios that we have not yet realized, and the "unmanned driving" is officially on the road!
Borrowing their "train", let's first learn about "unmanned driving". They take a train, and the train has tracks, so they don't have to worry about traffic jams, traffic lights, traffic directions, and of course, there will be porcelain bumps. In addition, the power of this train is horses. The old saying goes that old horses know the way, and English says horse sense (common sense). After the horse has the general "experience" and "common sense" of the driver, does it still need people to drive the car?
In layman's terms, unmanned driving is a solution for realizing business negotiations and private gatherings in the car, realizing "eating hot pot and singing" to reach the destination, and realizing the solution of auto driving, safety and rationalization. Of course, true "unmanned driving" cannot rely on horses, it needs technology as a support. It needs to be completed with various sensors, global positioning technology, computers, and even AI technology. In addition, V2X is also one of its cores. The question is again, what is V2X?
Many people may be angry when they see "what 2 what". After all, P2P has harmed a lot of people some time ago (don't get excited, please keep the knife away). We only make sense and don't charge money, and only serve as disseminators of science and technology.
Closer to home, continue to popularize science. It is not difficult to understand this concept. We can refer to the B2B and B2C models. V is easy to understand, vehicle means transportation, car.
Is V2X Vehicle to X-Men? To make it clear, X does not mean X-Men! X here means Everything, which means everything.
First of all, V2X is the information exchange between the car and the outside world. The Internet of Vehicles has established a new direction for the development of automotive technology by integrating GPS navigation technology, vehicle-to-vehicle communication technology, wireless communication and remote sensing technology, and realizes the compatibility of manual driving and automatic driving.
It doesn't matter if you don't understand, let me explain. Comparing a car to a person, we can see and hear the surrounding environment, in which direction the car is coming, where there are pedestrians, whether there is a building in front, and whether there is a traffic sign on the left, we can easily detect it. Now, each of us has an online chat device that includes everyone, such as a smart phone. This way we can navigate where we want to go, or someone says to you, "I'm just on the left side of the next intersection. There are a lot of people here. Be careful when you walk or you can change your way." In this way, we can break through our own limitations and better obtain information about the surrounding environment beyond the scope of human abilities.
In addition, X is a variable, and it can be replaced with V, I, P, N, etc. (refer to the usage of X in the junior high school mathematical equation). After understanding X, let's talk about these V, I...
Learn about V2N, V, I, P in turn
V2N means that the vehicle is connected to the Internet (Vehicle to Network), which is the Internet of Vehicles. Like smart phones, the first task of smart driving is to connect to the Internet. The mobile phone network is to enrich the information, and the car network is the same. In addition to the various sensors and cameras used in intelligent driving, the Internet of Vehicles can also be regarded as an extension of sensing technology.
In addition, V2N can provide navigation, entertainment, anti-theft, etc. just like a mobile phone is connected to the Internet. A popular saying in the gaming industry, you never know what your teammate is fighting with, maybe he is using a car monitor?
V2V means Vehicle to Vehicle. V2V communication technology is a communication technology that is not limited to fixed base stations and provides direct end-to-end wireless communication for moving vehicles. That is, through V2V communication technology, vehicle terminals can directly exchange wireless information with each other without forwarding through the base station. It can be used to monitor the speed and location of other vehicles driving on the street, such as "hidden" data that cannot be opened to other drivers, and can automatically predict whether a possible collision will occur in front of the vehicle's road.
In layman's terms, it is contrary to the mobile phones we use, which rely on fixed base stations to provide signals to interact with other mobile phones. On the high-speed rail, we will frequently change the service area of ​​the base station and the signal will be good and bad. However, autonomous driving is very afraid of this. Imagine that the car cannot sense other vehicles in the corner when there is no base station to provide services. It will really become the scene of a car accident.
V2I refers to the connection between vehicles and infrastructure (VehicleToInfrastructure), where I includes traffic facilities and equipment such as traffic lights, bus stops, telephone poles, buildings, overpasses, tunnels, and roadblocks. The V2I communication function adopts the 760MHz frequency band of the vehicle-mounted intelligent transportation system, which can realize the mutual communication function between the infrastructure and the vehicle without affecting the vehicle-mounted sensor.
To explain briefly, it is like equipping the blind with a guide stick. When the guide stick touches the place, it can be regarded as the information interaction between the vehicle and the infrastructure. It can prevent the blind from touching the wall. The same reason is that the vehicle This can be used to collect information about the surrounding environment.
V2P means that the vehicle is connected to the pedestrian (Vehicle to Pedestrian), the car can realize automatic driving, but there will be pedestrians on the road! It is impossible for us to have teleportation skills like in games, or invent a conveyor belt for pedestrians, so that people can go where they want. This is related to personal safety, traffic order, and social stability, so V2P is one of the most important links in autonomous driving.
There are many ways to realize vehicles perceiving pedestrians. In addition to more intuitive cameras and various sensors, information interconnection is also the most effective way. For example, terminals used by pedestrians, such as mobile phones, tablets, wearable devices, etc., can realize the interconnection between people and vehicles. At that time, it will be even more difficult to want to touch the porcelain, and the car will go around the pedestrians unless they bring it up to "take the initiative to touch the porcelain."
To sum up, V2X is the perfection of on-board sensors, and it can even be said that on-board sensors are just an auxiliary means. It is like equiping people with smart phones. It can get information without blind spots and cross any obstacles. It can also be interconnected with other "mobile phones" and exchange information. At the same time, it can also perform intelligent operations through calculations, perfectly fulfilling the obligations of the "driver".
Compared with on-board sensors, it will not be affected by weather conditions. For example, in sandy weather, heavy rain or fog, the role of the on-board camera will be weakened, but the V2X can still work normally.
Of course, V2X is so good that there will be controversies. For example, it is currently facing a fork in "cars", there are two roads to communication technology, one is good for the young and the old!
This is like this group of "Autobots" can achieve V2X, but they have communication barriers, one speaks Chinese, the other speaks English. The two existing V2X communication standards are DSRC and LTE V2X. One is an old technology with a fairly good foundation, and the other is a new technology that comes from behind.
DSRC
In fact, everyone is no stranger to this technology, it is an indispensable dedicated short-range communication technology in modern life. Anyone who has ever been on a high-speed highway knows the ETC dedicated channel, which is the key to realizing vehicle identification, electronic fee deduction, no parking, no card withdrawal, and establishment of unmanned vehicle channels. In addition, the electronic barriers encountered in the parking lot of the residential area also have the same technical application.
It is characterized by the identification and connection of high-speed vehicles in short distances (distances of tens of meters). It can also be seen from the above applications that its technology is relatively mature and stable, and is currently widely recognized. .
LTE V2X
It is a V2X communication technology based on a mobile cellular network, just like a mobile phone connected to 3G/4G. LTE V2X defines two communication methods for vehicle applications: centralized (LTE-V-Cell) and distributed (LTE-V-Direct). The centralized type is also called the cellular type and requires the base station as the control center. Distributed is also called straight-through, and does not require base stations as support.
The arrival of 5G is not only a revolutionary storm for mobile phones, but also the most critical step for LTE V2X. In the 5G era, in addition to the fast download speed, there is the most important point, the short delay, and the powerful communication capabilities of 5G can make cars run more safely and efficiently.
Each has strengths and weaknesses, and each has its own merits. The two communication technologies have their own advantages. The former is based on more than ten years of research and finally forms a unified standard and reliable and stable technology; the latter is in terms of coverage, perception distance, number of acceptances, and shortcomings. Time delay technology to a higher level.
V2X, keep it simple
Regardless of the standard, they all ended up with the same goal by different routes. We only need to know that V2X is to realize that vehicles can make reasonable judgments on traffic information in automatic driving mode, so as to alleviate traffic pressure. At the same time, under non-human operation, the traffic accident rate is reduced to a minimum, and automatic driving is safer than human driving.
ZGAR Vape Device 5.0
ZGAR electronic cigarette uses high-tech R&D, food grade disposable pod device and high-quality raw material. All package designs are Original IP. Our designer team is from Hong Kong. We have very high requirements for product quality, flavors taste and packaging design. The E-liquid is imported, materials are food grade, and assembly plant is medical-grade dust-free workshops.
From production to packaging, the whole system of tracking, efficient and orderly process, achieving daily efficient output. We pay attention to the details of each process control. The first class dust-free production workshop has passed the GMP food and drug production standard certification, ensuring quality and safety. We choose the products with a traceability system, which can not only effectively track and trace all kinds of data, but also ensure good product quality.
We offer best price, high quality Vape Device, E-Cigarette Vape Pen, Disposable Device Vape,Vape Pen Atomizer, Electronic cigarette to all over the world.
Much Better Vaping Experience!
ZGAR 5.0 E-Cigarette Vape Pen,ZGAR 5.0 Device Vape,ZGAR Vape Device 5.0 Vape Pen Atomizer,ZGAR Vape Device 5.0 Disposable E-Cigarette OEM vape pen,ZGAR Device 5.0 electronic cigarette
ZGAR INTERNATIONAL(HK)CO., LIMITED , https://www.zgarecigarette.com