Application of Network Technology in Automobile

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Application of Network Technology in Automobile [Copy link]

Abstract : As society has entered the information network era, people are no longer satisfied with cars as a means of transportation, but rather hope that cars are an extension of their lives and work. With the rapid development of computer technology, communication technology, and integrated circuit technology, field instruments and equipment represented by digital fieldbus are widely used, and cumbersome field wiring is replaced by a single and simple fieldbus network, and cars are also beginning to enter the network era.
Now, as society has entered the information network era, people are no longer satisfied with cars as a means of transportation, but rather hope that cars are an extension of their lives and work, and that they work and live in cars just like they do in their offices and homes. At the same time, automotive electronics is also developing rapidly, and is considered a revolution in the development of automotive technology. The degree of automotive electronics is regarded as an important indicator of the level of modern automobiles. With the rapid development of computer technology, communication technology, and integrated circuit technology, field instruments and equipment represented by digital fieldbus are widely used, which has brought about tremendous changes in traditional field control technology and field control equipment. Cumbersome field wiring is replaced by a single and simple fieldbus network, and the signal transmission quality is greatly improved, and cars are also beginning to enter the network era.
According to the impact on the driving performance of the car, automotive electronic products can be divided into two categories: one is automotive electronic control devices, including engine, chassis, and body electronic control. The other is on-board automotive electronic devices, including automotive information systems, navigation systems, car audio and TV entertainment systems, on-board communication systems, Internet access devices, etc.
Application of automotive electronic control devices As
cars become increasingly electronic, related electronic equipment begins to be used in large quantities, which will inevitably lead to longer and more complex automotive wiring, reduced operational reliability, and increased difficulty in fault repair. In particular, the introduction of a large number of electronic control units requires that a large amount of data information be shared among different electronic units in order to improve the utilization rate of signals. A large number of control signals in the integrated control system of the car also need to be exchanged in real time. Traditional lines are far from meeting this demand. In the automotive electronic network, digital serial communication is used between electronic devices, and there are multiple devices on a pair of buses. This networked design simplifies wiring, reduces the number of electrical nodes and the amount of wires used, simplifies assembly work, and increases the reliability of information transmission, enabling information and resource sharing of electronic equipment in the vehicle in distributed applications. Through the data bus, any electronic control device can be accessed, and fault codes can be read to diagnose faults, making vehicle maintenance easier. At

present, the development direction of electronic technology is towards centralized integrated control: integrating the engine management system and the automatic transmission control system into the integrated control (PCM) of the powertrain system; integrating the anti-lock braking control system (ABS), traction control system (TCS) and anti-skid control system (ASR) for braking control; and connecting the control systems such as braking, suspension, steering, and powertrain through the bus through the central chassis controller. The controller coordinates each subsystem through complex control operations to control the vehicle's driving performance to the optimal level, forming an integrated chassis control system (UCC). Now cars are equipped with hundreds of sensors and dozens of microprocessors. The number of CPUs used in a single car on some high-end cars has reached dozens or even hundreds. On the basis of making cars more comfortable, how to make cars more automated, intelligent and safe, so that the position of the network in the automotive electronic system is more prominent. The communication line connects various automotive electronic devices into a network, and sends and receives information through the data bus. In addition to independently completing their own control functions, electronic devices can also provide data services for other control devices. After adopting network technology, not only all sensors can be shared, but also other equipment can be shared. For example, if a ring network control is carried out, dozens of microcomputers, even if there are individual problems, the whole vehicle can still operate normally. Therefore, the network not only adds many functions in automotive applications, but also greatly increases reliability. In order to meet the needs of automotive network control, better information exchange, coordinated control, resource sharing, standardization and generalization can be completed between various control systems.
In terms of on-board automotive electronic devices
, the introduction of automotive information systems, navigation systems, car audio and TV entertainment systems, on-board communication systems, and Internet access equipment has enabled cars to have the functions of mobile office, learning and training, safe driving, and leisure and entertainment, so that people can be more comfortable and safe when driving cars. The use of on-board electronic systems has functions such as information processing, communication, navigation, language recognition, image display and entertainment. The top artificial intelligence technology and network technology enable people to experience in the car what makes our driving life fun. Now the industry companies are making unremitting efforts, such as Auto PC, which is installed on the dashboard of a super luxury concept car, and belongs to the open structure car microcomputer platform. It integrates car audio function, computer function, road navigation function, voice recognition wireless communication system function, and takes car technology as the core, providing information and entertainment facilities for cars, enabling drivers to freely receive emails, make phone calls, check special destinations, receive traffic and climate information, and change music records during safe driving. In addition, the car PC platform technology developed by other companies uses the universal serial bus (ISB), which makes the platform compatible with all its USB products, providing endless development opportunities for its hardware and software vendors. General Motors announced that it will conduct research and development of a new "network" car with an Internet interface and voice recognition function. Ford cooperated with Microsoft and Intel to develop the "ICES" car PC multimedia system, which has information processing, communication, entertainment, safety, anti-theft and other functions. Providing international Internet access and adding emergency services, the system can "understand" and complete the driver's instructions to add new routes to the existing electronic map to maintain the practicality of the map. In addition, the system uses voice recognition technology and remote emergency satellite communication technology, making car operation easier and more interesting.
Networking makes the inevitable trend of the development of automotive electronic technology
. Due to the increasing power of automotive electronic technology and the increasing complexity of the system, an important trend in the development of automotive electronic equipment is the large-scale use of microprocessors to improve the performance of the car. With the increasing application of electronic control devices in automobiles, data communication between on-board electronic equipment has become increasingly important. In order to further improve the economy and safety of driving, information such as temperature and vehicle speed must be exchanged between different control units. The rapid exchange of large amounts of data, high reliability and practicality are requirements for automotive electronic network systems.
Today, "car audio", "navigation system" and "electronic information" are relatively independent systems, but tomorrow, these fields are inseparable. Tomorrow's on-board electronic entertainment system will be re-evaluated through navigation and electronic information functions, and ordinary components of the car will be closely integrated with various audio and video equipment, telephones, satellites, global positioning systems and other devices through car computers. In the near future, the combination of car navigation, network functions and audio will become the basic equipment of every car. As part of the integrated components, car navigation and electronic information will be the basis for free flow.

aiqinghai

Cars are getting more and more awesome.

ltpgteew

very nice

hantown

Great article!!

sundaodao

The development of automobiles is exciting

qwqwqw2088

Does it mean that it is very convenient to do anything online while the car is running? Yes, it is good.

szkng

Suzhou Coniger Technology Co., Ltd. can provide services ranging from product operation evaluation, sample proofing and testing, mass production plan formulation and process parameter determination.

besk

Originally posted by szkng on 2013-12-16 16:42 Suzhou Coniger Technology Co., Ltd. can provide product operation evaluation, sample proofing test, mass production plan formulation and process parameter determination.

Automotive communication network? Or something else?

庄严

Hello, I am here to learn. After reading your post, I feel I have learned a lot. Thank you. . .