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1、基于二总线的红外火灾探测设计,;,+-(中国科技大学,安徽合肥230026)Design of Infrared Detection System for FireBased on Two line busCAI Zhi gang,LIAOGuang xuan, SHEN Lian guan(University of Science and Technology of China,Hefei230026,China)K1:二总线是一种常用于数据采集a监控的通讯网络模式,基于二总线,设计了采用红外探测器的火灾探测监控系统,在抗干扰方面采用光学滤波的方法滤去干扰波长段,通过初步试验证明:系统对有
2、火焰的火灾识别可靠b1oM:=9L;dms|:TH74;TU89DSM:BcI|:1001 2257(2005)08 0076 02l:2005 04 21Abstract: Two line bus communication sys-temoftenbeusedfor datacollection and detection.Based on two linebus,afiredetection systemwasdesigned, using infrared sensor. The system wasproved efficiently for fire protection by
3、initial ex-periment.Keywords:two line bus; infrared detection;fire;detection system0 引言dThd*w,34pb.d.a,d971b7=9LEd,.,+oMY,Y,alO1bdVL|)E,i?2!b1 二总线制的系统结构=9LaSa52- 3bdQuickQA840159QA840119=9LI*,BVL1IY,V|CE3i1.,?61I.|q,S(KS2 000 m)bH.|q,V?9h(K64)bTB1hd,e89C51,P0gT=9LYg,YV8155HZ4o,1602CAAUg,2;,HDzg,m1Ub
4、m 12 红外探测器+c,BY?H4byH.ly,yN,y?3I?#HY,*YX5bV,(iB|,yN,|A|uY7,1|1m2Ubm2V4.3 4.5 Lmo.1,Bo1q(;#)#76#u0v2005(8)m 2q.,YV3gqaAK8Y,AiV4oW,YTzr;,N;r;?iV4.3 4.5 Lmo,loWS,m3Ubm 33 通讯编码的实现及数据的处理MCU?1Y#eQA840159, QA8401591?QA840119ST1pI,ilQA8401191QbITm4Ubm 4ITFD(frame delay),CODESP(syncpulse)F,IHWT, FD10T,CODE52
5、T+ 52T= 104T,SP36T ,9150TbFD:S,BZTI)HW,6BZT_d=9LHWbCODE:ISIN( initialcode)RP(repeated code)2sFb2sIM,13F,13-8I(addr) ,5eI(control)b(4 TF,s,sYVU /10(HIGH) / 00(LOW)CODE104 T ,?bSP:ICODE,121lF,ADSPQA8401191RQA840159,MCU|bYVMCU1QA840159|,QA840159QA840119Y1MCUbMCUQA840159YVBHsHQA84015947i,YVLC_#RbQA84015
6、9KV+128b|.|,89C51?,Kendell StE,.|x( n), nWHW,t:y(n)= EN- 1i= 0 EN- 1j = iu x (n - i) - x( n- j )T N43u( x)fu(x)= 1 x 00 x 0IHBTy(n) = y( n- 1) + EN- 1i= 1 u x (n) - x( n- i) -u x (n - i) - x( n- N ) Mt:S(n)= y(n)N (N+ 1)/ 2L!Mtb3Nd1,|+,#yY1p,d3bS=SISO7240 9?6Skk(YVU?MY),dMYTV1UbV 1S k!|7|A8!MYTY Y Y
7、 Y Y Y#77#u0v2005(8)4 结束语=9LSed,2,Yy,kV,d*SezrTbID:1 u,;,L./#h5J.,2001,17(2):29- 31.2 W0*,N:.,.=9LYSd!9J.1NV,2002,23(6):41- 42.3 1a,k,k.=9LESdJ.0/,1997,(12):32- 33.4 CS,.eM.g:SS/v,1999.5 ,./*J.h/,2003,(10):19- 22.Te: (1979- ),3,2Y,SS/vNV3,1VYd#e/b一种时序转换方法液晶显示系统的设计与实现xz,b,S(西北工业大学,陕西西安710072)Design a
8、nd Realization of LCD Display System Based on aNew Timing ConversionLIANGZhao kuan, DU Qing zhen,CHEN Guo ding(Northwestern Polytechnical University,Xi. an710072,China)K1:在基于32位微处理器MC68331的剑杆织机监控系统中,完成了控制板QPY ENH6255,液晶模块LM64P83L和微处理器MC68331之间的接口设计,介绍了控制板和微处理器接口间一种时序转换方法的软硬件实现b介绍了系统初始化程序的设计方法及汉字菜单显示程序的设计流程b1
