基于單片機(jī)的汽車防盜報警系統(tǒng)設(shè)計中英文參考資料-文庫吧資料
2025-01-22 11:37本頁面
【正文】 tutes by the siliconcontrolled rectifier, the electric capacity and the resistance constitution negative booster concurrently filter, provides +3 +4V to IC the voltage, IC is traces Draws up sound reports to the police the integrated circuit, the alarm apparatus by the SCR control, robs the vehicle thief once after the wrong password, then the storage battery electric current enters the security system besides a group, another group is started in the engine, after leads the engine work, natural contact output voltage, after the differentiating circuit, siliconcontrolled rectifier SCR is triggered, also passes through the resistance to fall the pressure, the voltage adds in the IC power source input end, IC obtains the voltage output alarm, enlarges after the multipleunit tube, Destroys moves the speaker to send out resoundingly reports to the police the sound. when static state, entire electric circuit does not consume the electricity.2. Software designThe alarm apparatus software design mainly divides into: Master routine (alarm apparatus initialization, key modulation and decoding)。 (1) codes the channel code and the decoding channel code is same。 each set of systems use a fixed channel code. The code foreword number uses in to record the encoded order, its starting value is 0, the monolithic integrated circuit every time codes a time, the code foreword number upwardly counts time. The code channel code and the code foreword number deposits in monolithic integrated circuit EEPROM, guarantees them power cut the influence. The jump code is the systematic true password, it passes through the plex special algorithm by the code channel code and the code foreword number to extract, this special algorithm foreign security. The pressed key operation code by the pressed key which presses was decided, when the hypothesis the key is pressed down, its code decides as 0 1H。Based on monolithic integrated circuit automobile security alarm system designAbstract: Decodes the automobile security system using them on litchis integrated circuit interior resources realization jump code, it each time uses the remote control password all is changing, both enhanced the system security, and greatly reduced the cost.Keyword: Monolithic integrated circuit, Automobile security system , Code/decodeIntroductionIs unceasingly progressive along with the social economy and the high tech rapid development, in the routine work and the life, the automobile has bee the people ideal transportation vehicle. But the following motor vehicle the case which robbed gradually is also in creased has created the pilot economical property loss. In order tore duce the automobile to rob the event the formation rate, for has the automobile the user to provide the safety control, simply develops one kind to be reliable, the ease of operation, can send out in the discovery normal condition
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