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Step-by-step production process.
primary testing
add GPS antenna
GPS antenna tuning (1590 MHz in air)
add EMI shield (temporarily attached in one corner)
battery 6-pack/board assembly (6x Saft-17500)
add connectors (both boards; NOTE: the connectors should be soldered onto the board before the batteries)
remove all components from the top part of the board including antenova
add zero-ohm resistor next to antenova
add connector (RF coaxial 50 ohm / U.FL; position: con2)
LoRa antenna tuning
break off the charger
assembly
provisioning
plastic enclosure production
washing of the enclosure
aluminium lid production
anodisation of the lid
indentation of the screw holes on the attachment plates
polishing the attachment plates
assembly of the hardware - enclosure + lid (screws: 8x M4x12 + 8x M4x16 rust-free /tracker)
engraving of serial numbers (laser parameters: power 30%, speed 250 mm/s)
TPU leather flat belt production (BioThane Granite 280 TPU Coated Webbing, colour BL281)
width: 101 mm
length: 4.0 m
logo engraving (cutting: power 100%, speed 10 mm/s, scanning: power 40%, speed 250 mm/s)
Step-by-step production process.
GPS antenna tuning (1590 MHz in air for resin encapsulation)
add PCB spacers
add tag extension 26,6 mm + tag (don't connect "batt" pins)
add tape underneath the tag to protect holes for programming from the resin
add EMI shield (temporarily attached in one corner)
puncturing of batteries
add battery
charging testing
final GPS testing
put the tracker in deep sleep
seal the EMI shield all around with hot glue (the battery should be attached before the glue and the foam protection afterwards)
tape foam protection on the antenova (12x12x17mm)
resin casting in the mould (Electrolube PU resin UR5528, cca. 60g/piece)
engraving of serial numbers (laser parameters: power 30%, speed 150 mm/s)
prepare screws (2x DIN7985 M3x4 rust-free /tracker)
provisioning + send correct settings
final test
charge to 4.0V
packaging
final check on TTN
shipping
Number
Antenna frequency [MHz]
IRNAS frequency [MHz]
1
1580
1582
2
1582
1585
3
1584
1587
4
1586
1588
5
1588
1586
6
1590
1593
7
1592
1594
8
1594
1591
9
1596
1597
10
1598
1600
11
/
1602
12
/
1604
13
/
1606
14
/
1608
15
/
1610
Step-by-step production process.
primary testing
add GPS antenna (1592 MHz in air)
add tag extension 25,4 mm + tag (don't connect "BAT" pins)
tape underneath the tag to protect holes for programming from the resin
add PCB spacers
add EMI shield (temporarily attached in one corner)
puncturing of batteries
add battery
add foam protection - antenova (12x12x17mm) (note: should be added at the very end)
plastic enclosure production
washing of the enclosure
screw holes indentation on attachment plates
polishing the attachment plates
engraving of serial numbers (laser parameters: power 30%, speed 250 mm/s)
Electrolube PU resin UR5528
cca. 55g/piece
TPU leather flat belt production (BioThane Granite 230 TPU Coated Webbing, colour TN232)
width: 38 mm
length: 1.0 m
logo engraving (cutting: power 100%, speed 10 mm/s, scanning: power 40%, speed 250 mm/s)
Test
Results
Number of satellites (On fix)
Max SNR
Time to fix cold
Test
Results
Number of satellites (On fix)
5
Max SNR
G10 (41dB)
Time to fix cold
50s
Test
Results
Number of satellites (On fix)
5
Max SNR
G10 (37dB)
Time to fix cold
65s
Test
Results
Number of satellites (On fix)
5
Max SNR
G10 (36dB)
Time to fix cold
2min 30s
Test
Results
Number of satellites (On fix)
Max SNR
Time to fix cold
Test
Results
Number of satellites (On fix)
Max SNR
Time to fix cold
Test
Results
Number of satellites (On fix)
10
Max SNR
47
Time to fix cold
33s
Factory Test setup & values
receive / assemble electronics
visual inspection
add GPS antenna
Deep sleep
Value
Min
Max
Comment
alt
200
300
epe
0
50
hdop
DEFINE
lat
46.5535
46.5558
100m R
lon
15.6347
15.6369
100m R
lux
0
0
motion
satellites
3
12
snr
40
50
time_to_fix
5
15
Value
Min
Max
Comment
accelx
-100
100
accely
-100
100
accelz
-1100
-900
battery
3900
4200
battery_low
10
charging voltage
gps_on_time_total
0
1000
Max - end time
gps_resend
pulse_counter
0
pulse_energy
0
pulse_voltage
0
resetCause
external
watchdog-error
system_functions_errors
accelerometer_error
0
charging_status
1
gps_fix_error
0
gps_periodic_error
0
gps_triggered_error
0
light_error
0
system_state_timeout
0
temperature
voltage_fence_v
Value
Min
Max
Comment
gtw_id
eui-fcc23dfffe0a7553
rssi
-110
Step-by-step production process.
Irnas Lacuna space modem v0.2
add GPS antenna (1590MHz/1594MHz ??)
other side: RF connector (=elephant)
remove all components from the top - keep antenova
add 0-ohm resistor
add picoblade connector (see images 2-5)
battery 5-pack assembly
add wires to the battery pack
plastic enclosure production
washing of the enclosure
aluminium lid production
anodisation of the aluminium lid
screw holes indentation on attachment plates
polishing of the attachment plates
assembly of electronics inside the hardware
assembly of the hardware - enclosure + lid (screws: 14x DIN7985 M4x12 rust-free /tracker)
engraving of serial numbers (laser parameters: power 30%, speed 250 mm/s)
TPU leather flat belt production (BioThane Granite 230 TPU Coated Webbing, colour TN232)
width: 50 mm
length: 1.2 m
logo engraving (cutting: power 100%, speed 10 mm/s, scanning: power 40%, speed 250 mm/s)
TPU leather flat belt production (BioThane Granite 230 TPU Coated Webbing, colour TN232)
width: 50 mm
length: 1.2 m
logo engraving (cutting: power 100%, speed 10 mm/s, scanning: power 40%, speed 250 mm/s)
Step-by-step production process.
primary testing
add GPS antenna
GPS antenna tuning (1592 MHz in air)
add tag extension 21,4 mm + tag (don't connect ¨batt¨ pins)
tape underneath the tag to protect holes for programming from the resin
add EMI shield (temporarily attached in one corner)
battery 3-pack assembly (3x Saft-14250, 3mm x 0.1mm welding strap)
remove all components from the top part of the board (above the EMI shield/next to antenova)
add zero-ohm resistor (next to antenova)
add foam protection - antenova (12x12x17mm) (note: should be added at the very end)
break off the charger
plastic enclosure production
washing of the enclosure
screw holes indentation on attachment plates
polishing the attachment plates
engraving of serial numbers (laser parameters: power 30%, speed 250 mm/s)
Electrolube PU resin UR5528
cca. 31g/piece
TPU leather flat belt production (BioThane Granite 230 TPU Coated Webbing, colour TN232)
width: 38 mm
length: 0.6 m
logo engraving (cutting: power 100%, speed 10 mm/s, scanning: power 40%, speed 250 mm/s)
Step-by-step production process.
primary testing
add GPS antenna
GPS antenna testing
GPS antenna tuning (1592 MHz in air)
remove 2 components from the charger (positions D3 + U13)
remove all components from the top part of the board (above the EMI shield)
add zero-ohm resistor
add EMI shield (temporarily attached in one corner)
add tag extension 21,4 mm + tag (do not solder right-side battery/2,5V pins on the tag extensions)
tape underneath the tag to protect holes for programming from the resin
enlarge holes on the charger (2 mm drill)
battery 5-pack assembly (5x Saft-14250; 3mm x 0.1mm welding strap)
apply hot glue all around the EMI shield (to prevent the resin flowing underneath it)
add foam protection - antenova (12x12x17mm) (note: should be added at the very end, after the application of hot glue)
plastic enclosure production
washing of the enclosure
screw holes indentation on attachment plates
polishing the attachment plates
engraving of serial numbers (laser parameters: power 30%, speed 250 mm/s)
Electrolube PU resin UR5528
cca. 38g/piece
TPU leather flat belt production (BioThane Granite 230 TPU Coated Webbing, colour TN232)
width: 38 mm
length: 1.0 m
logo engraving (cutting: power 100%, speed 10 mm/s, scanning: power 40%, speed 250 mm/s)