KUMA: maritime analytics device
Kernel Unified Maritime Analytics · ESP32 edge · dual 50/200 kHz sonar · GPS/AIS · 4G/LEO/LoRa/GEO
00:00:00 UTC
ONLINE
4G LTE
200 kHz
24.1V
Depth
45
metres
Echo time
—
ms round-trip
Frequency
200
kHz
Under-keel
—
m clearance
Sound speed
1500
m/s
Pulse rate
2.5
Hz
Depth (m) 45
Draft (m) 3.5
Salinity 35 PSU
Safety margin 1.5×
Mode:
Echo waterfall: time →
200 kHz · 200 m range
Plan-view rotating sweep, target returns200 kHz
Targets detected
5
Nearest return
—
m
Sweep rate
0.5
Hz
Beam width
7
degrees
Max range
200
m
Gain 60%
Vessel cross-section, KUMA fairing block + sonar pulseFairing block
Mount type
Fairing block
Hull material
FRP
Hull penetration
22 mm
cable gland only
Signal efficiency
95
%
Flood risk
Minimal
Session min
—
m
Session max
—
m
Average
—
m
Total pings
0
OK pings
0
Shallow alerts
0
Depth history + safety margin
Frequency auto-switch log (teal = 200 kHz, amber = 50 kHz)
Bus voltage
24.1
V DC
Active draw
11.4
W
Current draw
0.48
A
LiFePO4 cell
94
%
Sleep mode
OFF
<1 W idle
Hold time
3.2
hr at port
Voltage across four power stages
Bus voltage 24.0 V
Four protection stages
Stage 1: Protection
Fuse · reverse-polarity MOSFET · TVS clamp (diesel spike ≤60V)
Stage 2: Regulation
Wide-input DC-DC 9–36V → 5V/3.3V, handles any vessel bank
Stage 3: Backup
LiFePO4 cell · 2–4 hr hold · logs flush before shutdown
Stage 4: Sleep
Power mgmt IC · GPS 1-min, sonar off, radio listen mode
Active tier
4G LTE
Latency
38
ms
Queued offline
0
pings
Shore distance
12
km
Module tier
Module A
Distance from shore 12 km
Coverage available by shore distance
Each sonar ping tags GPS lat/lon + depth + draft. Confirmed safe coordinates build live route clearances (OK lines).
Total pings
0
Safe coords
0
Flagged coords
0
Safety margin
1.5
× draft
OK line build-out by corridor
Selat Lombok
0% certified
Selat Bali
0% certified
Selat Madura
0% certified