1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
P10
1
P11
2
P12
3
P13
4
P14
5
P15
6
P16
7
P17
8
REST
9
P30
10
P31
11
P32
12
P33
13
P34
14
P35
15
P36
16
P37
17
XTAL2
18
XTAL1
19
GND
20
P20
21
P21
22
P22
23
P23
24
P24
25
P25
26
P26
27
P27
28
PSEN
29
ALE/PROG
30
EA/VPP
31
P07
32
P06
33
P05
34
P04
35
P03
36
P02
37
P01
38
P00
39
VCC
40
U1
AT89S52
VCC
VCC
GND
e
1
d
2
dp
3
c
4
g
5
c4
6
b
7
c3
8
c2
9
f
10
a
11
c1
12
SM1
L1
L2
VCC
P10
K1
K2
A
1
B
2
LS1
Q3
8550
GND
VCC
R9 1K
K4
R10
10K
C2
10uF
VCC
RST
复位电路
1 2
Y1
12M
C1 30p
C3 30p
X1
X2
时钟电路
P35
声光报警电路
P14
按键电路
K3
P36
P37
设置
增大
减小
P11
R6
1K
P10
P11
RST
X1
X2
P14
P35
P36
P37
Q1
8550
P20
R2
1K
Q2
8550
P21
R3
1K
Q4
8550
P22
R4
1K
Q5
8550
P23
R5
1K
VCC
P20
P21
P22
P23
GND
1
DQ
2
VCC
3
DS18B20
U2
DS18B20
R1
4K7
GND
VCC
P34
单片机
数码管显示
位选驱动
温度传感器DS18B20
1
2
3
J1
电源接口
GND
VCC
5V电源
测试功能:
1:上电数码管显示当前温度:。
2:按下设置按键,数码管显示L 20 ,之后按下增大减小按键在20的基础上会增大或减小,
3:再次按下设置按键,数码管显示H 30,之后再按下增大减小按键在30的基础上会增大或减小。
4:第三次按下设置按键退出设置界面。
5:如果当前温度不在设置的上下限温度范围内,进行声光报警。对应的发光二极管会闪烁,蜂鸣器响。
上下限温度报警系统
P34
PIC101
PIC102
COC1
PIC201
PIC202
COC2
PIC301
PIC302
COC3
PIJ101
PIJ102
PIJ103
COJ1
PIK101 PIK102
COK1
PIK201 PIK202
COK2
PIK301 PIK302
COK3
PIK401
PIK402
COK4
PIL101 PIL102
COL1
PIL201 PIL202
COL2
PILS101
PILS102
COLS1
PIQ101
PIQ102
PIQ103
COQ1
PIQ201
PIQ202
PIQ203
COQ2
PIQ301
PIQ302
PIQ303
COQ3
PIQ401
PIQ402
PIQ403
COQ4
PIQ501
PIQ502
PIQ503
COQ5
PIR101
PIR102
COR1
PIR201
PIR202
COR2
PIR301
PIR302
COR3
PIR401
PIR402
COR4
PIR501
PIR502
COR5
PIR601 PIR602
COR6
PIR901 PIR902
COR9
PIR1001
PIR1002
COR10
PISM101PISM102 PISM103PISM104 PISM105
PISM106
PISM107
PISM108PISM109
PISM1010PISM1011
PISM1012
COSM1
PIU101
PIU102
PIU103
PIU104
PIU105
PIU106
PIU107
PIU108
PIU109
PIU1010
PIU1011
PIU1012
PIU1013
PIU1014
PIU1015
PIU1016
PIU1017
PIU1018
PIU1019
PIU1020 PIU1021
PIU1022
PIU1023
PIU1024
PIU1025
PIU1026
PIU1027
PIU1028
PIU1029
PIU1030
PIU1031
PIU1032
PIU1033
PIU1034
PIU1035
PIU1036
PIU1037
PIU1038
PIU1039
PIU1040
COU1
PIU201
PIU202
PIU203
COU2
PIY101
PIY102
COY1
PIC101
PIC301
PIJ102
PIK101
PIK201
PIK301
PIQ303
PIR1002
PIU1020
PIU201
PIU1030
PIU1029
PIU1028
PIU1027
PIU1026
PIU1025
PIU1013
PIU1012
PIU1011
PIU1010
PIU108
PIU107
PIU106
PIU104
PIU103
PISM1011
PIU1039
PISM1010
PIU1034
PISM107
PIU1038
PISM105
PIU1033
PISM104
PIU1037
PISM103
PIU1032
PISM102
PIU1036
PISM101
PIU1035
PIQ503
PISM106
PIQ502
PIR502
PIQ403
PISM108
PIQ402
PIR402
PIQ302
PIR902
PIQ203
PISM109
PIQ202
PIR302
PIQ103
PISM1012
PIQ102
PIR202
PILS102
PIQ301
PIL101
PIL201
PIR602
PIJ103
PIL102
PIU101
NLP10
PIL202
PIU102
NLP11
PIR901
PIU105
NLP14
PIR201
PIU1021
NLP20
PIR301
PIU1022
NLP21
PIR401
PIU1023
NLP22
PIR501
PIU1024
NLP23
PIR102
PIU1014
PIU202
NLP34
PIK102
PIU1015
NLP35
PIK202
PIU1016
NLP36
PIK302
PIU1017
NLP37
PIC202
PIK401
PIR1001
PIU109
NLRST
PIC201
PIJ101
PIK402
PILS101
PIQ101 PIQ201 PIQ401 PIQ501
PIR101
PIR601
PIU1031
PIU1040
PIU203
PIC102
PIU1019
PIY102
NLX1
PIC302
PIU1018
PIY101
NLX2