ultra sonic motion detector
TRANSCRIPT
ES-15
Ultra Sonic Motion Detector (Crystal Locked)
Pengesan Gerakan Ultrasonik (Ver.2.0)
ESCOL ELECTRONIC HOBBY KITS www.escol.com.my
Power supply : DC 12V @ 200 mA
XTAL
TD1
TD2
IC1
IC2
7
8
14
9
10
11 12 13
12
5
34
6
2
2
1
1 E
E
B
B
C
C
+
-
+
- +
-
+
-
+-
NO
CO
MM
NC
+
-
+
-
+
-
+
-
VR
C10
Q2
A1A2
A3
A4
C9
R17
R18R16
R15
C7 R12
R14
D5
C8R13
C12
D3D4
C3
R20
R7R6
R9
C5
R8
C4
R19
C11 R10
C1
ZD
R1 D1
R5
R4
Q1
R3 R2
C2
D2
K1
LED
R11
C6
Vcc/2
pin 4of IC2
Vcc/2 Vcc/2
Vcc/2
DC 12V
+
-
9
10 11
8 13
12
14 3
21
7
6
5
IC1aIC1bIC1c
IC1d
IC1e
IC1f
TP1TP2
TP3
TP4
TP7
TP8
TP6TP5
1
PARTS LISTResistors : (all 1/4 watt)
Capacitors : (electrolytic) Capacitors : (mylar or ceramic, min:16V)
R1 ------------------------- 33 ÙR2, R3, R20 --------------------- 1MR4 ---------------------------------- 1KR5, R10 -------------------------- 6.8KR6, R8, R11, R18 ------------- 2.2MR7, R9. R13 -------------------- 470 KR12, R14, R16, R17, R19 -- 10KR15 ------------------------------- 100K
(orange-orange-black)
(brown-black-green)
(brown-black-red)
(blue-grey-red)
(red-red-green)
(yel-violet-yel)
(brown-black-orange)
(brown-black-yel)
[oren-oren-hit]
[cok-hit-hij]
[cok-hit-mer]
[biru-kelabu-mer]
[mer-mer-hij]
[kun-ungu-kun]
[cok-hit-oren]
[cok-hit-kun]
J ---------------------------------- jumper (bare wire)
C1 --- 330 µF (min 16V)
C3 --- 1 µF
C4 --- 4.7 µF
C11 -- 10 µF
(min 10V)
(min 16V)
(min 6.3V)
C2, C9, C10 -- 0.001 µF
C5 ------------- 0.01 µF
C6 ------------- 30 or 33 pF
C7, C8, C12 --- 0.1 µF
(#102 OR 1n)
(#103 OR 10n)
(#104 OR 100n)
Semiconductors, etc. . . .
IC1IC2
--- CMOS 4069
-- TL 084
( hex inverters)
(Quad operational amplifiers)
--- 2SA 1015
--- 2SC 1815 or 945
--- 1N 400x (x = 1,2, ... ,7)
--- 1N 4148
--- Zener diode, 400 mW 13V
-- Trimmer pot (preset) 10 K
--- Tuning fork crystal, 40 KHz
--- 40 KHz Ultrasonic transducer (transmitter)
--- 40 KHz Ultrasonic transducer (receiver)
( : Transmitter & receiver can be identified by its part number.
40T = transmiitter, 40R = receiver. If no part number found,
then the one with white paint mark is the transmitter TD1)
Q1Q2D1, D2D3, D4, D5ZDVR
K 1
LED
XTALTD1TD2NOTE
(or other general purpose PNP transistor)
(or other general purpose NPN transistor)
(rectifier diodes)
(or other general purpose switching diodes)
Ù
-- Miniature relay. Coil = DC 12V (or 9V)
-- Light emitting diode. 5 mm
EC
B
Q1, Q2
1 2
UltrasonicTransducers
Non-polarizedfor plastic case type
10 mm. dia.
white paint mark (if no
marking is found)
Crystal (XTAL)
40 KHz
IC1
Intergrated Circuit
7
14
1
LED
+ -
smalllarge
3mm or5 mm
anode cathode
Zener Diode ( 13V)ZD
A C
D3, D4
A C
D1, D2
A C
R1, ..., R20
R 7, R8
R
2
TD
1
R 1
R 2
D 4 D 3
D 1
ZD
D 2
R 4
R 6
R11
R12
R13
R15
R16
-+
-+
R14
XTAL
R10
R9 R
7
R8
R19
R17
R18
D5
C7
C8
C6
C5
C12
C9
C10
C1
C11
C4
C2
C3
LED
R20
R5
R 3
TD
2
VR
Q2
NC
NO
C-1
2V+ Q
1
K1
IC1
IC2
+-
+-
12
12
Transducer,
(receiver)
# 40R or without
white paint mark
TD2
Transducer,
(transmitter)
# 40T or with
white paint mark
TD1
+ DC 12V
adaptor-
screened cable
twin cable
J
PROSEDUR MENGUJI
PEMASANGAN
(1) Sambungkan bekalan kuasa DC 12V dari adaptor ke kit ES-15.(2) Laraskan pot penghalus (VR) hingga setengah pusingan daripada pusingan penuh.(3) Goyang-goyang tangan anda di hadapan transducer selaku objek yang bergerak. Litar ini sepatutnya
memberi sambutan segera dengan menggerak geganti dan LED menyala beberapa saat.
(1) Pengesan dicipta hanya untuk kegunaan dalaman sahaja.(2) Ia tidak bolih dipasang pada tempat-tempat yang terdapat banyak gangguan seperti angin yang kuat
atau kipas.(3) Pengesan hendaklah diletakan ditempat yang jelas dikawasan jagaannya (tidak bolih menghadang
didepan transducer)(4) Laraskan pot penghalus bagi mendapatkan paras kepekaan yang dikehendaki. Sekiranya terlaku
tinggi, penggera palsu akan terjadi.(VR)
TEST & ADJUSTMENT(1) Connect the detector to any DC adaptor (12V, @ 200mA min.).(2) Wave your hand in front of the transducers to simulate moving object. In response to this, the relay
should activate promptly (& the LED lights up) for a few seconds.The LED & relay will remain ON until the motion stops.
(3) Adjust VR to set appropriate level of sensitivity (depending on the environment where the detectoris installed). Setting it too high will induce false alarm!
APPLICATION :
HOW IT WORKS
INSTALLATION:
1) (to be used with door chime) To announce the arrival of guests or customers.2) as an add-on burglar/intruder detector to existing alarm system (see INSTALL-ATION for details)
The kit uses 40 KHz ultrasonic waves to detect moving objects. When a burglaror intruder enters the detection zone, the reflected waves changes its amplitude slightly. This change ofamplitude cause the circuit to actuate a miniature relay for a few seconds..
1) the detector at places where interference from electric fans, insects & householdpets are expected. It is not intended for outdoor use.
2) Do not place obstacles in front of the detector.
:
should not be used
3
0
0
0
0
0 0
0
0
0
0
No moving object present Moving object detected
constantamplitude
TP1
Crystal oscillator buffered output Transducer driving signal
TP2
envelope signal
40 KHz 40 KHz
TP3
TP4
TP5
TP6
TP7
40 KHz 40 KHz
V (volt)
V (volt)
V (volt)
V (volt) V (volt)
V (volt)
V (volt)
V (volt)
t (time)
t (time)
t (time)
t (time) t (time)
t (time)
t (time)
t (time)
Vcc/2
Vcc/2
Vcc
DC volatge
0V
0V
Reflected sound picked up by TD2 & amplified by Q2 & A1
Vcc/2
Vcc/2
Vcc/2
high threshold
low threshold
Original envelope signal as extracted by R14, D5, C8, R13
that the frequency of envelope signal is directly proportional to the speed
of the moving object
NOTE
Envelope signal after amplification by A2
could be either +Vcc orzero volt
Envelope signal is converterd to square wave by A3
Envelope signal is converted to DC voltage by C12, D3, D4, C3 & R20
The level of the DC voltage is directly proportional to the speed of the moving object
which means that the voltage is if the object is .zero not moving
moving faster
moving slower
4