Car Bluetooth Technology Application

Bluetooth (Bluetooth) technology is actually a short-range wireless communication technology. Originally created by telecommunications giant Ericsson as an alternative to RS232 data lines. The use of "Bluetooth" technology can effectively simplify the communication between mobile terminal devices such as handheld computers, notebook computers and mobile phones, and can also successfully simplify the communication between these devices and the Internet, making the data transmission between these modern communication devices and the Internet become faster and more efficient. With the continuous development of technology, the performance stability and security of Bluetooth have also been greatly improved, and users can have a better experience. As the car is an important means of transportation for people, combining Bluetooth technology with the car system will bring great convenience to car production and car service. At present, Bluetooth technology has been widely used in vehicle application systems and network control and other fields, and it will be more widely and deeply used in the automotive field in the future.

1. Application status of Bluetooth technology in automobiles

The wide application of Bluetooth technology in the field of automobiles stems from its own high-end technology, especially in the six fields of automobile hands-free communication, rearview mirror, Bluetooth entertainment system, Bluetooth self-diagnosis technology, Bluetooth anti-theft system and car steering wheel control system. aspect.

(1) Bluetooth hands-free communication: Nowadays, many cars are equipped with car phones, mainly using the wireless communication technology function of Bluetooth. The car phone can automatically identify the user's mobile phone card, and make a detailed classification of the specific information in it, such as the user's address book, the ownership of the phone, and the phone's own number, and can automatically connect to the car network. These functions can make the user's mobile phone and the car phone communicate with each other in a wireless communication mode. When the user needs to answer or make a call during driving, he can directly use the car phone to communicate, which is also of great significance to the safety of driving.

(2) Bluetooth rearview mirror: The Bluetooth rearview mirror of a car is similar to a new type of car phone display. It connects the rearview mirror of the car with the mobile phone through the wireless Bluetooth function, which makes it a cutting-edge vehicle communication device. At this time, the rearview mirror can display the incoming call number when answering the call, and automatically generate the hands-free function. The rearview mirror has a built-in battery that is powered by the car. This application increases the convenience of the user in the driving process, and the mobile phone number of the incoming call can be directly seen without using the mobile phone screen.

(3) Car Bluetooth entertainment system: Nowadays, people have higher and higher demands on car performance, and hope to have multiple experiences during driving. Drivers often feel bored during car driving, and the Bluetooth entertainment system can play and display audio, video, etc. in the car through a wireless Bluetooth connection with the user's mobile phone. The car Bluetooth entertainment system is the most widely used navigation all-in-one machine, which adds the Bluetooth car function to the car's navigation device, so that the device not only has communication functions, but also makes it a reality to connect with smart phones. Greatly increase the entertainment of the driving process.

(4) Vehicle-mounted Bluetooth self-diagnosis technology: Long-term driving will cause certain faults in the car, and some hidden faults cannot be discovered by the naked eye in time, which will bring great safety hazards to users. The Bluetooth self-diagnosis technology on the car can be sent to the user's mobile phone through wireless Bluetooth transmission, so that the driver can intuitively understand the performance of the car and the reasons for possible failures. Through a new type of data expression, a preliminary assessment is automatically made for the car to ensure the safety factor of driving. At the same time, the detection data of the Bluetooth self-diagnosis technology can also be sent to a professional car maintenance company through the user's mobile phone, and the professional maintenance technicians will conduct a comprehensive evaluation to eliminate possible safety hazards, so that some novice drivers can rest assured Travel by car.

(5) Car Bluetooth anti-theft system: How to effectively prevent theft while increasing the convenience of using the anti-theft system when parking has become the focus of the current automotive field. The Bluetooth anti-theft system used today is mainly to wirelessly connect the mobile phone to the Bluetooth of the car, and then use special software to lock and unlock the car door. The anti-theft of the engine is mainly realized by the on-off control of the engine starting circuit by the on-board Bluetooth. The engine can start normally only when the car Bluetooth can be connected to the previously matched mobile phone Bluetooth. Once the Bluetooth of the mobile phone exceeds the connection range of the Bluetooth of the car, the engine of the car will be in a state of being unable to start. For the anti-theft of the car door and engine, two Bluetooth anti-theft systems are used, and these two systems can use two different authentication passwords to increase the safety factor of use.

(6) Automobile steering wheel control system: With the continuous rapid development of science and technology, the automobile steering wheel is also developing in the direction of intelligence. More and more automobile steering wheels also realize the control of related operations of the automobile steering wheel panel through Bluetooth data transmission . The cost of this automobile steering wheel control system is relatively low, and at the same time, it has good stability and high safety factor.

2. The development trend of Bluetooth technology in automobiles

Today, Bluetooth technology has been widely used in people's lives, and its application in automobiles is a powerful proof. It makes car driving more and more convenient, intelligent and humanized, becoming an irresistible social trend in the future. At the same time, in the future development of the automotive industry, Bluetooth technology should give full play to its own special advantages to improve its application level and high-quality data transmission. Next, the wheel force transmission system and the vehicle operating condition recording system are mainly summarized.

(1) Wheel force transmission system: The wheel force transmission system requires high-precision standards, and Bluetooth wireless technology can improve the accuracy of data collected by the wheel force sensor during data transmission. The force of the car during driving is multi-directional and multi-dimensional. How to collect these forces well is of great significance to the performance evaluation of the vehicle. In this way, professional evaluation personnel can understand the performance coefficient of various aspects of the vehicle during dynamic driving.

(2) Vehicle operating condition recording system: The operating condition of the vehicle is a powerful data for the safety of the vehicle as a whole. Bluetooth technology can effectively obtain accurate data through the acquisition equipment in the car device. Among them, the data transceiver chip has many advantages such as easy installation and carrying, and high accuracy of data transmission at the same time. The data collected wirelessly by Bluetooth technology is more convenient for centralized processing and control.

3. Problems and Countermeasures of Bluetooth Technology

Although bluetooth technology can bring great convenience in the driving process, it also has many problems that people still need to solve. Bluetooth technology is everywhere in our life, but many people still have a little understanding of Bluetooth technology, lack of security knowledge related to Bluetooth technology, resulting in a series of problems. The two relatively serious problems of Bluetooth hijacking and Bluetooth eavesdropping are mainly described below.

Bluetooth hijacking means that users send business card information anonymously through Bluetooth-related technologies. This approach will not cause mobile phones and other devices to delete or directly change related information, but it may transmit some important private data through Bluetooth, or import some useless spam information from the outside world to mobile phones and other devices . Bluetooth eavesdropping refers to a method where the outside world directly accesses the mobile phone without reminding the device user, so that outsiders can directly obtain important private data through the mobile phone, and even modify relevant information through Bluetooth technology. The well-known Bluetooth eavesdropping technology is to monitor private calls, which will bring great security and privacy problems to users.

The main measures taken for these two problems: the manufacturers of related equipment should strengthen the safety factors in all aspects through hardware. At the same time, professional software companies also need to develop and upgrade specific security software to reduce this major hidden danger from a technical perspective. Users should also pay attention to safety issues during operation. For example, when not using Bluetooth technology in daily life, or in some unknown places that are not sure whether it is safe or not, you can set mobile phones and other devices to non-discoverable mode, or set them not to communicate with Bluetooth technology. Unknown device pairing mode.

epilogue

At present, Bluetooth technology is still in the development stage, and it also has many problems while bringing convenience to people's life. Widely used in automobiles, when Bluetooth technology brings convenient applications such as hands-free communication and Bluetooth rearview mirrors to users, it also brings certain privacy and security issues. Nowadays, the price of domestic Bluetooth chips is relatively high, and production is more difficult. But with the development of national high-tech, bluetooth technology will definitely bring new changes.

The above are the details of the application of Bluetooth technology in automobiles introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have Bluetooth product design and development needs, you can trust us. We have rich experience in custom development of smart electronic products. We can evaluate the development cycle and IC price as soon as possible, and can also calculate the PCBA quotation. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, BLE Bluetooth IC, dual-mode Bluetooth module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth development, wifi technology, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.