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Robot-learning data · 2026

Moving an egocentric data company from phone rigs to an owned stereo capture device

Client: Egocentric data-collection company (US / India)

A data company collecting workplace egocentric video on head-mounted smartphones needed a purpose-built, owned device. We ran a factory-side discovery, wrote the vendor specification with firmware-ownership clauses, and supported a low-cost stereo global-shutter recorder build.

Stereo global shutter + 500 Hz IMU
Capture
Compute-module, custom carrier PCB
Controller
Full firmware source at delivery
Contract stance
Factory discovery and visitVendor specificationFirmware and data ownership clausesStereo module selectionPrototype oversight
Stereo global-shutter USB 3 module, hardware sync
Fig. 01 — Stereo global-shutter USB 3 module, hardware sync
Stereo global-shutter module with hardware sync
Fig. 02 — Stereo global-shutter module with hardware sync

The problem

The client was collecting workplace video — warehouse picking, kitchen preparation, light assembly — using smartphones on head mounts. That works at scale but leaves no hardware synchronisation, rolling-shutter artefacts and a processing pipeline controlled by phone vendors. Their buyers increasingly asked for stereo, IMU and synchronised data.

What we did

  • Discovery in Shenzhen and Dongguan: mapped stereo module makers and wearable ODMs, then ran a structured factory visit with Mandarin-led technical conversations and a written recommendation.
  • Vendor specification with non-negotiable clauses: complete firmware source at delivery (drivers, build scripts, toolchain), documented data formats, synchronisation method and file conventions.
  • Device architecture: a synchronised dual global-shutter stereo module with hardware-timestamped 6-axis IMU (up to 500 Hz) and per-unit factory calibration, controlled by a compute module on a custom carrier board, button-triggered recording to local storage, and an RTC for wall-clock alignment.
  • Prototype oversight and a path to small-batch production with per-unit pricing.

Outcome

A device the client owns end to end — hardware design, firmware and data — at a unit cost compatible with field fleets, and a specification reusable with any qualified factory.

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