With the development of the economy and the progress of the times, cars have become an indispensable means of transportation for people to travel. However, while people enjoy the convenience and speed brought by vehicle travel, they are also concerned about the safety and anti-theft issues of vehicles. In order to ensure the safety of vehicles and prevent theft, various car safety anti-theft devices have emerged. The safety protection technology of vehicles is also receiving increasing attention from people.
Especially in recent years, people's living standards have been getting higher and higher, and the requirements for car safety alarm systems have also been increasing. This article studies an intelligent perception system for automobiles based on vibration analysis. The hardware composition of the system, the analysis and processing algorithms of related signals, and the final program implementation method are studied in detail. The main content of the paper is as follows:
(1) The hardware components mainly studied the composition and functional implementation of the main control chip MC9S12DG128, vibration acceleration sensor, GSM module, GPS module, and other circuits.
(2) Analyzing and processing algorithms, focusing on the derivation process of signal processing algorithms and the algorithm composition for intelligent signal analysis.
(3) The implementation of the program flow studied the program flow of various functional module sub functions and main functions.
(4) Functional testing of the system, including module functional testing and main functional testing of the system. Through testing, the functionality and stability of this system have been verified. The system functions have achieved the initial design goals.
Based on the above research and inheriting the advantages of traditional alarm equipment, an intelligent perception system for automobiles has been completed. This system is based on analyzing the vibration signals of the vehicle body, using data processing algorithms as a means to estimate the possible safety conditions of the vehicle body, and can complete the final alarm and information exchange functions for users through the use of GPS and GSM platforms. The characteristic of this system is that it can intelligently estimate possible dangerous situations through signal detection, can be remotely controlled, does not require professional installation, and has high cost-effectiveness.
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