1、/*/File Name: CJ510F_4.c/Description: 雙通道-電條和線圈測速/Author: JunZhi, Du/Verson: 3.0/Date: 2005-5-24/Note: / /*/#include <AT89X52.H> #include "USER.H" #define MaxVehRate 160 #define OLEN 32 idata INT8U outbufOLEN; INT8U idata *outlast=outbuf; INT8U idata *putlast=outbuf; #define ILEN 12

2、idata INT8U inbufILEN; INT8U idata *inlast=inbuf; INT8U idata *getlast=inbuf; bit outbuflast; bit outbufsign; bit inbufsign; bit inbufful; float f_average_speed,f_wheelbase; INT16U PASS_time1=0; INT16U PASS_time2=0; INT16U idata T0_counter=0;INT16U idata T2_counter=0;INT16U idata int_start_time=0;st

3、atic INT8U M11,M12,M21,M22,MI,MF ;bool init_finished=0;bool impower=0;bool nopower30s=0;bool dectect_enable=0;bool dectect_started=0; bool calcul_enable_a=0; bool calcul_enable_b=0;bool passed=0;bool Loop_A_1=0; bool Loop_A_2=0; bool Loop_A_3=0; bool chanpe0=0; bool chanpe1=0; bool chanpe2=0; bool d

4、oor_sign=0;bool alarm_sign=0;bool car_in_area=0;bool led_1ab=0;INT8U channel=0;INT8U axle_sum3=0,0,0;INT8U aver_speed_Int3; INT8U aver_speed_Frc3; INT8U wheelbase_Int3; INT8U wheelbase_Frc3; INT8U ve_type3;INT8U axle_sum_a;INT8U axle_sum_b;/*typedef struct updata INT8U command; INT8U way_number; INT

5、8U average_speed_Int; INT8U average_speed_Frc; INT8U vehicle_type; INT8U check_sum; UPDATA; UPDATA up_data;/*void copy_updata(UPDATA * p_data ,INT8U channel,INT8U test_bit)INT8U i,chec_sum= 0;INT8U* j;p_data->command = 0x6f;if (!test_bit)p_data->way_number=channel+1 ;else p_data->way_number

6、=channel;p_data->average_speed_Int=aver_speed_Intchannel ;p_data->average_speed_Frc=aver_speed_Frcchannel ;p_data->vehicle_type=ve_typechannel ;j=(INT8U *)&up_data; for(i=0;i<5;i+) chec_sum += *(j+i) ;p_data->check_sum=chec_sum ;/*/定時器struct u_timer /INT16U enable_time; INT16U sta

7、rt_time; INT16U all_time; INT8U Time_out;struct u_timer ut7=0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1;void start_utimer(INT8U num ,INT16U time) utnum.start_time= T0_counter; utnum.all_time= time;utnum.Time_out=0;bool get_utimer(INT8U num)if(T0_counter- utnum.start_time)=utnum.all_time)&&(!ut

8、num.Time_out) /time oututnum.Time_out=1;return 1; else return 0; void close_all_utimer(void) /close all timerINT8U i;for(i=0;i<7;i+)uti.Time_out=1;void clear_sign(void) impower=0;close_all_utimer();start_utimer(1,u1time);/start_utimer(4,200);aver_speed_Intchannel=0x0; aver_speed_Frcchannel=0x0;wh

9、eelbase_Intchannel=0x0; wheelbase_Frcchannel=0x0;dectect_enable=1;channel=0; car_in_area=0; axle_sum_a=0;axle_sum_b=0; PASS_time1=0; PASS_time2=0;calcul_enable_a=0;calcul_enable_b=0; dectect_started=0; Loop_A_1=0; Loop_A_2=0;Loop_A_3=0; chanpe0=0; chanpe1=0; chanpe2=0; led_1ab=0; passed=0; void putb

10、yte(INT8U c) /INT8S i,j;ES=0; /if (outlast=putlast)while ( (outlast-putlast)=2) && (outlast > putlast ) | (outlast < putlast) && (OLEN-(putlast-outlast)=2) ES=1; c+;c-;ES=0;/i=(0-TH1);/doi-;j=39; do j-;while(j!=0); while(i!=0); /i=39clr_wdt; *putlast=c; putlast+; outbufsign=1;

11、if (putlast=outbuf+OLEN) putlast=outbuf; if (!outbuflast) outbuflast=1;TI=1; ES=1; clr_wdt; void putbytes(INT8U *outplace,INT8U j) INT8U i;for(i=0;i<j;i+)putbyte(*outplace); outplace+;INT8U getbyte (void) INT8U idata c ; while (!inbufsign) clr_wdt; ES=0; c= *getlast; getlast+; inbufful=0; if (get

12、last=inbuf+ILEN) getlast=inbuf; if (getlast=inlast) inbufsign=0; ES=1; return (c); void getbytes (INT8U idata *line, INT8U n) INT8U cnt = 0; INT8S c;do c = getbyte (); *line = c;/putbyte (*line = c); line+; cnt+; clr_wdt; while (cnt < n); /*line = 0; void serial_init (void) SCON = 0x50; / serail

13、mode 1, 8-bit UART, enable receiver(REN = 1;)*/TMOD |= 0x20; / timer 1 mode 2: 8-Bit reload */PCON |= 0x80; / double baud rate bit =1, the baud rate is doubledTH1 = 0xfa; / reload value, 9600 baud rate, fosc=11.0592MHzTR1 = 1; / timer 1 run */ES = 1; void timer_exint_init()/- timer0 initialization T

14、MOD |=0x01; /th0 1X16 TH0=0X01; / ee00H-5MS TL0=0X00; ET0=1; TR0=1; /- external interrupt 0 EX0=1;IT0=1; /- external interrupt 1 EX1=1;IT1=1;/- interrupt priority level/- enable for all interrupt/* EA = 1; P1=0x00; void shut(void)INT8U i,j,k;/- impower=0; nopower30s=0; start_utimer(1,u1time); /-shut

15、ter_on; for(k=4;k>0;k-)for(i=200;i>0;i-) for(j=248;j>0;j-)clr_wdt; shutter_off;void main(void)INT16U aa,bb,cc,dd,ee;INT8S ch; INT8U idata verify_sum;INT8U idata indata20;INT8U *p_d;serial_init(); timer_exint_init(); putbyte(0x2c);start_utimer(0,u0time);/3s 一發while(1)if(!init_finished)if(get

16、_utimer(0) putbyte(0x2c);start_utimer(0,u0time); if(inbufsign)switch(ch=getbyte () case 0xde: getbytes(indata,7); verify_sum =0xde +indata0+indata1+indata2+indata3+indata4+indata5; if (verify_sum=indata6) /M11=indata0; M12=indata1; /M21=indata2; M22=indata3; MI=indata4; MF=indata5; indata6 =0x06 +in

17、data0+indata1+indata2+indata3+indata4+indata5; putbyte(0x06); putbytes(indata,7); if(!init_finished)init_finished=1;impower=0; nopower30s=0; /clear impower start_utimer(1,u1time); dectect_enable=1; break; case 0xaa: if(init_finished) shut(); /void shut(void) aver_speed_Int0=0; aver_speed_Frc0=0; ve_

18、type0=0; copy_updata(&up_data ,0,1);p_d=(INT8U *)&up_data;putbytes(p_d,6);break; case 0x55: if(init_finished) impower=1; dectect_enable=1; nopower30s=0; close_all_utimer(); LED_sys_inline=0; break; case 0x77: impower=0; nopower30s=0; start_utimer(1,u1time); break; case 0xe2: LED_filetransfer

19、=1; break; case 0xe3: LED_filetransfer=0; break; case 0xe4: CDMApower_on; break; case 0xe5: CDMApower_off; /turn on the CDMA moden's power break; case 0x07: impower=0; nopower30s=0; camerapower_off; /cut off the camera's power for(cc=15;cc>0;cc-)for(dd=200;dd>0;dd-)for(ee=248;ee>0;e

20、e-)clr_wdt; /delay 7.35s camerapower_on; for(cc=15;cc>0;cc-)for(dd=200;dd>0;dd-)for(ee=248;ee>0;ee-)clr_wdt; /delay 7.35s putbyte(0x17); start_utimer(1,u1time); break; /= if(door_open_key&&!door_sign) /door open for(dd=20;dd>0;dd-) for(ee=248;ee>0;ee-)clr_wdt; /delay 10ms for

21、filtering if(door_open_key) / door open alarm putbyte(0xe6); door_sign=1; alarm_sign=0; LCDpower_on; else if(!door_open_key&&door_sign) putbyte(0xe9); door_sign=0; LCDpower_off; if(!no_alarm_key&&!alarm_sign) /press the no_alarm key for(dd=20;dd>0;dd-)for(ee=248;ee>0;ee-)clr_wd

22、t; if(!no_alarm_key) putbyte(0xe7); alarm_sign=1; if(!test_key&&init_finished) /press the test key for(dd=20;dd>0;dd-)for(ee=248;ee>0;ee-)clr_wdt; if(test_key)shut(); /void shut(void) aver_speed_Int0=0; aver_speed_Frc0=0; ve_type0=0; copy_updata(&up_data ,0,1);p_d=(INT8U *)&up_

23、data;putbytes(p_d,6); if(!impower&&init_finished) if(!nopower30s&&(get_utimer(1) nopower30s=1; LED_sys_inline=1; putbyte(0x66); /transmit the 0x66 start_utimer(1,u1time/10); else if(nopower30s&&(get_utimer(1) putbyte(0x66); /transmit the 0x66 per 3sstart_utimer(1,u1time/10);

24、/= if(car_in_area)if(get_utimer(2)|get_utimer(3) clear_sign(); if(Loop_A_1&&(!loop1A)&&(!loop1B) /the car pass the detect areaif(calcul_enable_a&&calcul_enable_b) /&&(axle_sum_b>=2)&&(axle_sum_b<=7) /it has a holdif(axle_sum_a<=6&&axle_sum_b=a

25、xle_sum_a)Loop_A_1=0;car_in_area=0;passed=1;close_all_utimer(); else if(ut3.Time_out)start_utimer(3,u3time); else if(Loop_A_2&&(!loop2A)&&(!loop2B) if(calcul_enable_a&&calcul_enable_b) if(axle_sum_a<=6&&axle_sum_b=axle_sum_a) Loop_A_2=0;car_in_area=0;passed=1;close

26、_all_utimer(); else if(ut3.Time_out)start_utimer(3,u3time); /= if (calcul_enable_a&&calcul_enable_b&&impower&&passed) aa=0;bb=0;do f_wheelbase=(float)PASS_time2*(float)0x3)/(float)PASS_time1); aa+;while(_chkfloat_(f_wheelbase)&&(aa<=2); do f_average_speed=(float)21

27、600)/(float)PASS_time1); bb+; while(_chkfloat_(f_average_speed)&&(bb<=2); if(aa<=2)&&(bb<=2)aver_speed_Intchannel=(INT8U)f_average_speed; aver_speed_Frcchannel=(INT8U)(f_average_speed-(float)aver_speed_Intchannel)*(float)100);wheelbase_Intchannel=(INT8U)f_wheelbase; wheelbas

28、e_Frcchannel=(INT8U)(f_wheelbase-(float)wheelbase_Intchannel)*(float)100); if(aver_speed_Intchannel<=MaxVehRate)if(wheelbase_Intchannel>MI) if(aver_speed_Intchannel>M22) shut();/void shut(void)ve_typechannel=0x02;copy_updata( &up_data ,channel,0);p_d=(INT8U *)&up_data;putbytes(p_d,6

29、);else if(aver_speed_Intchannel=M22)&&aver_speed_Frcchannel)shut();/void shut(void)ve_typechannel=0x02;copy_updata( &up_data ,channel,0);p_d=(INT8U *)&up_data;putbytes(p_d,6); else if(wheelbase_Intchannel=MI)&&(wheelbase_Frcchannel>=MF) /big vehicle if(aver_speed_Intchanne

30、l>M22) shut();/void shut(void)ve_typechannel=0x02;copy_updata( &up_data ,channel,0);p_d=(INT8U *)&up_data;putbytes(p_d,6);else if(aver_speed_Intchannel=M22)&&aver_speed_Frcchannel) /. shut();/void shut(void)ve_typechannel=0x02;copy_updata( &up_data ,channel,0);p_d=(INT8U *)&am

31、p;up_data;putbytes(p_d,6);else if(aver_speed_Intchannel>M12)shut();/void shut(void)ve_typechannel=0x01;copy_updata( &up_data ,channel,0);p_d=(INT8U *)&up_data;putbytes(p_d,6);else if(aver_speed_Intchannel=M12)&&aver_speed_Frcchannel)shut();/void shut(void)ve_typechannel=0x01;copy_

32、updata( &up_data ,channel,0);p_d=(INT8U *)&up_data;putbytes(p_d,6); clear_sign(); clr_wdt; void EXINT0_INT(void) interrupt 0if(impower&&car_in_area&&!passed)if(Loop_A_1) if(pe1A)axle_sum_a+=1;if(axle_sum_a=1)int_start_time= T0_counter;if(axle_sum_a=2)PASS_time2=(T0_counter- int_start_time); calcul_enable_a=1;if(pe1B) axle_sum_b+=1; if(axle_sum_b=1)PASS_time1=(T0_counter- int_start_time); /calcul_enable_b=1;if(axle_sum_b=