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1、毕业设计 课程设计 毕业论文 详细资料联系QQ号；1620812008毕 业 设 计（论 文）外 文 参 考 资 料 及 译 文译文题目： Application of Burglar Alarm System in Uptown Based on AT89C2051学生姓名： 学 号： 专 业： 电子信息工程 所在学院： 信息技术学院 指导教师： 职 称： 2010年12月25日Application of Burglar Alarm System in Uptown Based on AT89C2051Abstract : AT89C2051 is powerful programmed
2、microship,the hardware principle and software realization of gyard against theft and alarm system based on AT89C2051 are introduce.Key words : Microchip Guard against theft and alarm syetem AT89C2051IPREFACEMany person have a habit that when going to study, working for a long time They will be home
3、anti-theft lock insurance, prevent thieves entanglements room,but even the ordinary anti-theft entanglements will be sure for skiing, the theft have rich experience of habitual is also very easy to come in, they take a little time to burst in. So somebody puts forward on the door with a concealed lo
4、ck control switch,it can work after the owner leave out . If the master will closed concealed system in three minutes, then system should stop work. But when there are thieves breaking to steal, and couldnt find this secluded alarm system to close it,the system will automatically alarm in three minu
5、tes.IIThe way to realizated system2.1 design priniplesSuch as figure 1 showes, using a microcontroller AT89C2051 as a CPU, it will realize intelligent alarm.The system is established by an defend switch k1, the door switch k2(often shut), microcontroller AT89C2051, an 5 v Super-mini relays (SSR), 78
6、05 voltage regulations, an alarm.In addition can report to alarm, it will enter semaphore to keep long range to link, and carry out long range supervision.2.2Guard against theft the hardware of systemThe AT89C2051 is a programmable EPROM Microchip of high performance by 53 bytes knot, Compatible wit
7、h industry standards MCS51 instruction group and pins, the Atmel company produces of the AT89C2051 is a kind of microcontroller with strong function, it provided a vivid altitude useful solution to a lot of embedded control applications.It has the following racteristics:the 2 K bytes EPROM, 128 byte
8、s knot RAM and 15 I/0 wire, two 16-bit timing/counters, five interruption structure with second class vector and a whole pair to of string line orifice, an accurate emulation compare machine, Piece inside oscillator and clock circuit.AT89C2051 designses include Confidential bits and Confidential bit
9、s 1 drives after weaving a distance, Program memory can not be programming againunless do once erased, after Confidential bits 5 being programmed, Program cannot be read. This is an important guarantee for the safety of Program and carried out procedure encryption.7805 Integrated manostat provide a
10、stable 5 v working voltage, and have a small volume,the higher accuracy , use convenience, multi-function protection, Output current extensible and other characteristics.there are overcurrent, overheating and regulator tube safety in the inside work zone protection, in order to prevent overburden bu
11、t damage.Solid - state relay, It uses solid-state device assembly and become a novel non-contact switch device, have Reliable work, fast switching speed, high working frequency, life long, low noise and other characteristics.The alarm adopted a language chip SR8803A the highest voltage of 5V, So mak
12、ing voltage appropriately reduced to string into D1, D2.The K2 directly connects in the door, Door is open state, So K2 is open position. Otherwiseis it is the opposite. In addition added an indicator as a reminder, If the door is closed, as the K2 connects, then lamp anti bright, otherwise the lamp
13、 indication becomes bright.The meaning the door still has not closed completely.2.3Guard against theft the software of systemThe system adopts KeiuVersion 2 Programming language.The KEILC51 scompiler provides C language environment for the software development of 8051 microcontrollers, at the same t
14、ime reserved to Assembly code efficiency,fast and others characteristics.The C51 is completely hasing already been integrated into uVision2 integration development environments, this integrated development environment contains compiler, s The assembler, real-time operating system, the project manage
15、r, debugger.And also is an application development the software under WINDOWS, the interface amity, it is suitable to the developers use. The Color syntax imaging and Documents achiered function are optimized C source code . It can be editor in debugging, and can provide a kind of natural environment of adjusting to try and make you work more quickly and modify procedure.Any control I/0 is the all the most basic, and most of applied procedures also need I/0, the 89C2051 only have two I/0 port ,are respective is P1 port and P3 port, they all can use as Single input or output port, When it used
