Talk about the car networking in my eyes

September 16, 2020

The car network, also known as the connected car, is a hot term in the automotive industry. But what surprised me a lot was that a few days ago, at the Apple Developer Conference, I was of course very interested in the rumored Carplay system, but when I talked to a few friends, no one heard. I have understood and understood the concept of the Internet of Vehicles, but they have shown great interest. So there is such a relatively straightforward science article.

It can be said that the Internet of Vehicles is still a very conceptual thing. There may be a hundred different views in the eyes of one hundred people. Different angles, different ideas, and certainly different things to see, I dare not say that I can glimpse the whole picture, just publish a statement here, welcome everyone to participate in discussion and exchange, and learn together.

Section 1: Concept - What is the Internet of Vehicles?

The Internet of Vehicles, the full name is called "mobile mobile Internet of Things technology", of course, I personally prefer to call it connected car. As you can imagine, in the era when the Internet has become widespread, when you turn on your computer and connect to the Internet, turn on the power of your smartphone, or turn on the smart TV and start searching for programs, you and the device terminal you are using will become Part of the internet. The car network is to turn the car into a terminal of the Internet, and turn the car into a part of the Internet. Through the three steps of vehicle data collection - car network interconnection - cloud center control and dispatching, the customer and the automobile factory can be realized. The interests of the parties, third-party companies, and transportation departments are mutually beneficial, making our car travel safer, more efficient and smarter. (described later in the third section)

Section 2: Technology - Introduction to Software and Hardware Technology for Realizing Vehicle Networking

The technology required for the Internet of Vehicles is now fully achievable, and only a brief introduction is given here. It mainly includes four major items.

1 GPS Global Positioning System: No need to explain too much, now car and mobile navigation are based on this technology. In the Internet of Vehicles, it is still responsible for providing accurate positioning of the car.

2 WCDMA/LTE mobile communication technology: Secure and high-speed mobile communication technologies such as 3G/4G provide the possibility for the fast-moving vehicle to access the Internet, and at the same time, it can bring huge benefits to mobile operators. As early as the GPRS era, General Motors had tried to build a car network, but the low network speed at that time led to a decline in service quality.

3 Intelligent vehicle system: Intelligent vehicle system is mainly responsible for human-computer interaction and information processing in the vehicle network. At present, the in-vehicle systems of major automakers are mainly based on the QNX platform of BlackBerry, and cannot realize the functions and user experience of smartphones. Of course, the three IT giants, including Apple, Google, and Microsoft, are eyeing the auto console. However, the individual thinks that the most important thing about the in-vehicle system is stability and security, not intelligence. Maybe it only needs to be able to connect with the smart phone through the data cable, Bluetooth or NFC. The smart phone can complete all the tasks that the intelligent in-vehicle system needs to accomplish. There are already many car manufacturers that have begun to do this, such as Honda's Display Audio smart screen interconnection system (which allows the central control screen to implement some mobile APP functions, such as navigation) and Mirrorlink technology (operating the mobile phone through the car center console).

4 ECU electronic control unit (ie driving computer) and OBD vehicle automatic diagnostic system: These two systems are still responsible for their own work in the Internet of Vehicles, that is, monitoring and diagnosing the running state of the vehicle. Incomplete control of the vehicle can be achieved with the intelligent on-board system, such as intelligent parking (automatic identification of the parking space in or out), adaptive cruising (automatically maintaining a relatively fixed distance from the preceding vehicle during driving), active collision prevention system (Automatic application of braking force when an impending collision is detected). Now most of the third-party car networking companies are doing OBD business. The more famous ones in China are Tencent Lubao and Anjixing Onstar, but at present they can only implement detection instead of control. The following chapters will introduce them.

Section 3: Benefits - What can the Internet of Vehicles do?

I have done so much in front of it. In fact, this chapter began to really penetrate the core of this article. So what benefits can the Internet of Vehicles bring to us? I think it can be summarized in three aspects:

1 More secure - real-time monitoring

Real-time monitoring is actually well understood, which is to monitor the vehicle's position and status in real time through GPS and OBD systems. As long as the customer purchases a car that joins the Internet of Vehicles, the car factory, after-sales service center, insurance company, traffic management department, etc. can know the position and condition of the vehicle in real time through the car network. Let's use a scenario to illustrate, assuming all the cars in the story have joined the car network.

Mr. A went out to travel and rented a small car in the local city. When he was driving on the city road, the steering system of the vehicle suddenly became out of control and lost control. He ran into the guardrail on the side of the road - after Mr. A’s car The onboard system of several cars learned the situation for the first time, and automatically applied full-force braking in an instant, avoiding the occurrence of secondary accidents without any danger;

The traffic control department immediately informed the information and immediately issued a notice. The car navigation of the nearby vehicles automatically changed the route bypass and prompted the owner to have an accident. When the traffic control department rushed to the scene, the insurance company that had taken the first step had already completed the early forensics. At the same time, the ambulance also learned that the news arrived at the first time through the Internet of Vehicles. Fortunately, Mr. A’s family did not have any serious problems. At this time, the people of the rental car company and the staff of the after-sales service center arrived together. They said that they were monitored by Mr. A. The fault occurred during normal use. The after-sales service center will be responsible for repairing the vehicle. The rental car company will replace the new car for Mr. A and the accident compensation for the accident. Finally, Mr. A puts in a new car and gets paid, and continues his own. The journey, and the road is restored to the fastest speed. The factory also obtained valuable data from this accident for technical research and development to avoid failures.

As in the little story I wrote, no matter whether your vehicle is malfunctioning, accident, or stolen, the Internet of Things can let the corresponding department know the news for the first time and ultimately help you solve the problem. One of the most important functions of the current car network is the security solution. I think this seems to be a dream. In fact, someone has already done it. Like IBM.

China’s Ministry of Communications, the Ministry of Public Security, the State Administration of Work Safety and the Ministry of Industry and Information Technology issued the “Notice on Strengthening the Dynamic Supervision of Road Transport Vehicles” in 2011, which clearly stipulates that all tourist chartered vehicles, class three passenger cars and transportation Road vehicles for dangerous chemicals, fireworks, and civilian explosives (ie, two passengers and one danger) need to install a satellite navigation and positioning system in accordance with JT/T794-2011 and a driving recorder to detect the operation of the vehicle, although only It is a relatively early stage, but it is also a good application of China's real-time monitoring of the Internet of Vehicles.

2 more efficient - resource allocation

The resource allocation mentioned here mainly refers to the rational distribution of transportation resources. That is, the vehicle is positioned by GPS, and the vehicle position information is fed back to the cloud control center by the mobile network (generally the traffic department is responsible for managing the dispatch), and then the system automatically calculates or manually distributes the grooming, and the vehicle intelligent system receives the traffic dispatch information and then feeds back to the vehicle. GPS navigation automatically corrects driving directions for customers.

Still give an easy to understand example. Everyone must know the taxi software that was hot in the past? In fact, personally feel that this is the prototype of a car network. When the customer sends a request through the APP, the server pushes the demand to the driver of the taxi, and then the taxi driver completes the service to the customer. However, there are two big problems in this process: First, there are often many taxi drivers nearby who receive a push at the same time, resulting in customer resource competition, resulting in waste of traffic resources. Second, drivers need to use frequently. Mobile phones seriously affect the safety of driving (this is also the main reason for being stopped).

If you analyze from the perspective of the Internet of Vehicles, you need to cooperate with the taxi company and taxi company to build a cloud service platform. When the customer sends out the demand through the APP, the customer does not directly connect with the driver, but is uniformly collected by the cloud platform, and automatically specifies a taxi nearest to the customer to provide services to the customer, thereby achieving reasonable resources. distribution. At the same time, the feedback scheduling software can be integrated into the vehicle system, and the driver can be prompted by voice or GPS navigation, thereby avoiding the safety hazard caused by the frequent use of the mobile phone by the driver during the driving.

At present, the most realistic one should be the reasonable regulation and resource allocation of the “two passengers and one danger” mentioned in the above article and various logistics express vehicles, because many vehicles already have GPS and vehicle access to the Internet of Vehicles. System, but this requires the transportation department to coordinate with various companies and build a reasonable cloud platform.

The key to resource allocation in the Internet of Vehicles is “linking”. If a reasonable cloud scheduling platform can be built in advance, the more vehicles there are in the “link”, the more efficient the system will be, and even the pedestrians pick up the mobile phone. It is also possible to know the operation of the vehicle. Further, perhaps it is unmanned. Of course, those are too conceptual, and they are not displayed.

3 smarter - information interaction

Smartphones are not unfamiliar to everyone. It can be said that the emergence of iPhones and Android smartphones has dramatically changed our lives. Switching to the smart car field, if you simply copy the function of the mobile phone, then obviously there is no point. The most important thing in the intelligence of the car network is "information interaction". Then, let me give a simple example.

I am used to going to work at 7:30 every morning. When I was about to go out this morning, I found that my car had already learned my trip today through my mobile phone schedule, and I left the garage and stopped in front of me. At the same time, it learned from the weather forecast that the weather was hot today. I had already opened the cold air conditioner for me in advance. It also learned that I went to the customer company on the first stop today, set up the navigation route for me in advance, and got into the car. I remembered that I hadn’t had breakfast yet. After pressing the button, I automatically connected to a fast food restaurant on the way. When I passed by, the store had already prepared a fast food for me. At the same time, I automatically paid the payment through ETC without stopping the payment, without delay for one minute. Itinerary.

During the course of the day, it found that the maintenance cycle was approaching. After checking the mobile phone schedule, I suggested that I should take care of this weekend. After I confirm, I will complete the appointment and notify the service center to prepare the accessories in advance. After I got off work, it found that the files I stored on my company's computer were not uploaded to the cloud and were automatically saved to my phone. On the way home, it reminded my friend that the car was not far from me. I switched on the voice communication with my friends and made an appointment to go out to dinner together tonight. I would happily enjoy the ordinary day in the life of the Internet. ended.

Well, this is the information interaction of smart cars in the Internet of Vehicles. It can interact with people, equipment (mobile phones and PCs), car manufacturers and service centers, third-party organizations (shopping centers, restaurants, etc.) and other vehicles. To provide various conveniences for the owner's life and travel.

At present, many organizations in China are doing this kind of information interaction services, such as the interactive intelligent navigation of the famous Anjixing and Lubao boxes, but they are still in the relatively early stage (that is, the information exchange between the car and the Internet of Vehicles company), obviously It won't be as magical as described in my story. I personally know more about the Audi connect system, which can provide interactive navigation, weather, news, events (games or discounts, concerts, etc.) and other information, as well as road rescue, etc., but unfortunately, domestic Features such as Google Maps, traffic information, internet radio, etc. are not available.

In addition, the function of automatic driving and safety monitoring can be said to constitute the ideal state of the Internet of Vehicles application. So as the video says, we have technology, we have vision and concepts, but why haven't there been a successful business case? Please see the next section.

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