by sticking an RFID tag on the
edge of a door frame) or triage
of victims within the target
building (by placing RFID tags
on victims to classify them as
minor injury, serious injury, or
mortally wounded).
RFID is a mature
technology robust enough to be
used in the most offensive
environments, including high-temperature, smoke-filled
rooms. The system works via
inductive or capacitive coupling
and is impervious to room size,
fire, smoke, or other objects
that could affect other
communication systems such as
RF/wireless or optical. If the
RFID tags embedded into the
firefighter’s clothing get worn
out, burned, or damaged in any
other way, they can simply be
replaced and the Firefighter
Identification System look-up
tables updated to reflect the
change in unique identifier of
that particular firefighter.
Solving a Real
Need
This build was particularly
enjoyable because we designed
something that could actually
help people and potentially
save lives. In the finale of the
episode, we gave firefighters
from Modesto, CA a
demonstration of the
technology and let them wear
the unit during training
scenarios. They were impressed
with the functionality and
agreed that there is a need for
features of our system to be
included in real-world firefighter
equipment. Hopefully, one day
we’ll see that happen! NV
PJ-202A
J4
Input (18VDC)
2
P2
HEADER2-HV
1
PYROPACK SCHEMATIC
1
3
2
VIN
0.33uF
C7
0.33uF
C3
D3 Blue LED
EL1
5
1
3
GND
IN
2
OUT
2
IN 1 OUT 3
GND
U4 LM7812
2.2k R7
TECHLITE
T1
1
VCC
GND
EN
3
2
Resc-Hue Mayday Alarm
VIN
43
VIN
65
10uF
C8
5V
10uF
C4
12V
Q1
IRF510
G6C-2117P-US
8 1+
VIN
K1
P1
RFID Reader
(Parallax #28140)
5V
Firefighter ID System
1
2
3
4
2MJ-0104A120
Thermal-Eye 3600AS OEM
Thermal Imaging Camera
Composite Video Input
J3
P4 RCJ-041
1
2
3
4
5
6
10k
R5
220 R4
1N4007
D2
/RFID_En
RFID_SOUT
12V
470
R1
Bob_SOUT
/TIC_Enable
RescHueEnable
SysReady
D1
Green LED
System Ready
VIDEO_IN
10k R11
3.3V
3.3V
10k R9
SIN 2
ATN 3
VSS 4
P0 5
P1
6
7
P2
8
P3
9
P4
10
P5
11
P6
12
P7
U2
BS2sx
SOUT 1
3.3V
C2
0.1uF
0.1uF
C1
TXD
RXD
BOB-4-H Video On-Screen Display(9600bps, 8N1)
RTS
DTR
DSR
VIN 24
2x20 Male Header
3.3V
5V
12
34
56
78
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
P3
10
J1
6
9
11
2
7
3
8
4
5
D Connector 9F
1
VIDEO_OUT
10k R10
3.3V
Bob_SIN
Keller_RT
Memsic_Xin
Memsic_Yin
Keller_TX
Keller_RX
5V
220 R3
220 R2
P5 RCJ-041
Composite Video Output
MEMSIC2125EB
Accelerometer (Parallax #28017)
GND
Y_OUT
2
12V
R12
1k
D4
Blue LED
Power Indicators
5V
GND
5V
5
X_OUT
4
GND
VCC 6
R13
3.3k
5V
D5
Blue LED
0.1uF
C5
5V
Joe Grand is an electrical engineer,
hardware hacker, and president of
Grand Idea Studio, Inc.
( www.grandideastudio.com), where
he specializes in the invention,
design, and licensing of consumer
products and modules for electronics
hobbyists. He can be reached at
joe@grandideastudio.com.
680
1
2
3
4
5
6
J2
Comment
VIN
Keller Preciseline 0328.14903.050500
Digital Pressure Transmitter
R8
680
R6
5V
0.1uF
C6
NOTE: Resistors are in
ohms +/- 5% and capacitors
are in microfarads unless
otherwise noted.
5V
eMagin Microdisplay
Power Connection
1
P6
2
HEADER2-HV
June 2010 43