The Design And Implementation Of Multifunction Automobile Protection Device

With the development of economy of our country and the constant improvement of thepeople's living standard, the output of the car is increasing and the competition is becomingfurious. So the security, easiness, operational facility, and functional maturity of the car havebecome the focal points when users want to buy a car. Automobile protection products ofdomestic and overseas has a single function relative, or complicated to operate, useinconvenience. This article is based on the existing mature embedded technology, research anddevelop a set of strong multi-purpose utility vehicle protection devices.The design and implementation of multifunction automobile protection device, integrateduse of computer software and hardware technology, electronic technology, sensor technology,testing technology, data processing theory, plug-in systems theory, interdisciplinary knowledge.Its use microcontroller and can bus structure and sensor data collection and testing theories, theachievement of vehicle anti-theft and anti-touch and routine maintenance. For ultrasonic distancemeasurement study which is the focus of this research. To enhance system stability and reliability,and facilitate the expansion and maintenance functions, the system design of the anti-interferenceis difficult.At First, the papers introduce the background and significance of the selection of subjects,and then made the overall system design concepts, and the choice of software and hardware forthis system can be achieved.Proceeded to the hardware circuit design a detailed briefing. Noted that the system includesfour functional modules : ultrasound ranging, temperature testing, indoor driving alcohol testingand password protection.At the same time, we used PROTEL software to design the hardwarecircuit figure.Using C51 advanced computer language to design the software of the micro controller, andusing WAVE6000 Simulation device software as compiler which was developed by WEI FUcompany. The compiler can overcome much previous disadvantages such as low efficiency, longcode, low execution speed. It also overcome much disadvantage of using crabbed assemblelanguage, and increase work efficiency in a large extent.At last, the issue gives the conclusion of experimentation. Indicating by the experimentation,the system has the stable capability, measurement precision which have reached the anticipaterequirement, and has a good practical future.