4.1 KiB
| tags | project | author | date | status | ||||
|---|---|---|---|---|---|---|---|---|
|
Project Drogheda | Helgen CTO | 2026-06-20 | Draft |
HBOX — Product Specification (Series 1 → Series 2)
The HBOX as a product: what it is, its variants, interfaces, and target specs. Requirements live in 01-Requirements/SRS; parts in 03-Architecture-Hardware/BOM-master. Series 1 = current module-based build (ASA case + Dupont wiring). Series 2 = the production PCB target.
1. Overview
HBOX is a ruggedized, cabinet-housed RTK GPS telemetry unit for heavy port equipment. It delivers centimetre-class position over 4G to the Helgen backend, with an onboard watchdog that keeps the correction link alive unattended. Sold as a gabinete (cabinet) assembly: an industrial IP67 cabinet (power, protection, ignition isolation) + the internal HBOX (RTK + 4G + watchdog).
2. Variants
| Variant | Machine power | Cabinet supply → | Notes |
|---|---|---|---|
| 12 V | 12 Vdc | Mean Well DDR-60G-24 → 24 V | Tractoplana, Montacargas |
| 24 V | 24 Vdc | DDR-60G-24 → 24 V | dominant: RTG, Reach Stacker, Empty Handler |
| 48 V | 48 Vdc | DDR-60L-24 → 24 V | — |
| 110 V | 110 Vac/dc | HDR-60-24 / Siemens → 24 V | + AC SPD + termomagnético |
| 230 V | 220 Vac | HDR-60-24 → 24 V | + Bussman fusing |
| Base Station | 110 Vac | — | Ardusimple AS-PRO-CORS (RTK source/NTRIP caster) |
Internal HBOX electronics are identical across variants; only the cabinet power/protection stage changes with machine voltage.
3. Key specifications (targets)
| Parameter | Spec |
|---|---|
| GNSS | u-blox ZED-F9P, multi-band L1/L2, multi-constellation |
| Position accuracy | RTK fixed: ~1–2 cm + 1 ppm CEP (open sky, valid corrections) |
| Update rate | 1 Hz (active) / 30 s (idle/battery) |
| Corrections | NTRIP/RTCM3 over 4G LTE (ArduSimple 4G NTRIP Master) |
| Telemetry out | NMEA over UDP → retranslator → Wialon/Traccar → VERONICA |
| HBOX input | 24 Vdc (from cabinet) + isolated ignition |
| Internal 5 V | Mean Well SD-15B-05 (18–36 V→5 V, 3 A) |
| Backup power | PowerBoost 1000C + 18650 Li-ion 1S4P (under review — see SRS FR-7) |
| MCU / watchdog | STM32F411 Blackpill, firmware blackpillrtkcode_v2 |
| HBOX↔cabinet | GX16-5 locking circular connector |
| Antennas | 1× multiband GNSS (SMA) + 2× LTE (AR1582) |
| Status | external LED (multi-pattern) + onboard LED + debug UART dashboard |
| Cabinet | Yetlebox P3901, ABS, IP67, 39×29×16 cm, DIN rail |
| Environmental (target) | −10…+75 °C internal; ≥2 G vibration (to validate); coastal humidity |
| Enclosure (HBOX) | Series 1: ASA (adequate) → Series 2: ASA or metal / plate-mount |
4. Interfaces
- GX16-5 (HBOX↔cabinet): 24 V, GND, ignition, (spare ×2) — finalize pinout on the schematic before PCB.
- Antennas: bulkhead SMA (GNSS) + 2× LTE via glands; torque + thread-lock.
- SIM: Telcel micro (Series 1, internal) → front-panel or MFF2 eSIM (Series 2).
- Debug: USB/UART ANSI dashboard (battery, fix, packets, temp, state).
5. Status indication (LED)
Boot (fast blink) · Running+RTK (solid) · Battery mode (heartbeat) · Searching/ degraded (slow blink) · LIMP/no-4G (SOS-ish double) · Power-cycling (strobe) · Sleep/critical (off). See firmware v2.
6. Model / SKU
H-BOX Series1 (current) → H-BOX Series2 (PCB). Each unit carries a Helgen
data label (modelo, serie, datos técnicos) + warning + input-voltage label.
7. Series 2 (production) deltas
ASA case retained (optional metal) · Dupont/hand-wire → PCB + locking connectors · discrete watchdog → integrated load switch · battery decision · front-panel SIM · conduction cooling · documented assembly. See 03-Architecture-Hardware/hardware-respec-and-pcb-brief.
Open Questions
- Finalize GX16-5 pinout · battery strategy · enclosure material.
- Validate the 2 G vibration and IP67-after-mods claims for the datasheet.