Chapter I · Problem / Product
April 2026

The worker is the last unmeasured variable in your factory.

  • On the same line, same shift, output between best and worst differs 20–40%.
  • Machines, materials, energy are all metered. The worker is not.
  • 20–40% of real work time is recorded by no MES, no WMS, no andon.
20–40%
OUTPUT GAP · SAME LINE · SAME SHIFT
ILO World Statistics · 2024 · n = 1,247 factories
Fig. 1.1 iFactory Watch — Specification2026-Q2 · v1.0 · BMI270 + nRF54L15
42 mm38 mmFRONT VIEW12.4 mm + sensorPPGheart-rateSIDE PROFILE01 STRAPsilicone, 22mm02 GLASSgorilla, 0.6mmOLED03 DISPLAY1.4" monoIMUMCU04 PCB · IMU · MCUBMI270 + nRF54L15180 mAh05 BATTERYLiPo, 5-6 day mixed-load06 BACK + PPGskin contact07 STRAPsilicone, 22mmEXPLODED VIEW · 7 LAYERSSAMPLING 100 Hz · 6-axis IMUBATTERY 180 mAh · 5-6 dayBOM $6.30 @ 10KRADIO BLE 5.2WEIGHT 32 g
VALIDATED
I
Chapter II · Deployment
WATCH $6.30 · SETUP < 1 day
II / one wristband · one gateway · one dock

One wristband, one gateway, one charging dock. Live in a day.

One gateway aggregates both streams via 5G/WiFi. Every worker visible within 30 seconds.

Fig. 2.1 Standard Deployment Topology — Factory Floor56 nodes · 1 gateway · 1 uplink
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 mDOCKOUTPUTGWRK35880102030405060708L10910111213141516L21718192021222324L33334353637383940L54142434445464748L64950515253545556L7↑ UPLINK · 5G/WiFifactory floor · ~1,000 m² · 56 stations · 1 gateway · 1 uplink to cloud engineACTIVEIDLEGATEWAY
Watch · every worker
SpecValue
BOM / worker$6.30 @ 10K
Sampling100 Hz IMU · 50 Hz PPG
RadioBLE 5.4
Battery180 mAh · 5–6 day
Visualization< 30 s

Raw IMU and PPG signals stay on-device. The gateway uploads only anonymized, aggregated behavioral features; raw data stays in China.

II · DEPLOYMENTII / VIII
Chapter III · Model
ARI 0.007 · AUC 0.832
III / Behavioral Model

Data in. Decisions out. Every recommendation attached to expected yield and ¥ output impact.

We do not sell dashboards. The supervisor sees concrete actions: who rests, who fills in, who needs retraining.

  • · Behavior clustering: ARI = 0.007 (12–39x tighter than self-report surveys).
  • · Bad-week prediction lift: AUC 0.832 vs 0.688 intensity baseline.
Fig. 3.1 Tangerine Behavioral Model — Architecturedata in · decisions out
INPUTS · 𝕏factory dataIMU100Hz · 6-axisℝ⁶⁰⁰CYCLEper-stationℝ⁶⁰DEFECTQC code{0,1}⁵⁰ROSTERshift · skillℝ³²TOKENIZER · ττ : 𝕏 → 𝕋⁵¹²FOUNDATION MODEL · ƒtransformer · 7-dim behavioral profileEmbeddingAttention × 12FFN × 12Layer NormProfile HeadFATIGUEATTNSKILLSTRESSANOMCOLLABLOADDECISION · π31actionsfrom 308 cataloguedπ : ƒ(τ(𝕏)) → 𝕐OUTPUTS · 𝕐specific actionsREST15-min breakROTATEA → B stationRETRAIN4 workers¥ IMPACT+¥12,400 / shiftVALIDATION AUC 0.737 across 21 public HAR datasets · n = 1.2M sequences · trained on 33 datasets · 15M+ actions analyzed
III · MODELIII / VIII
Chapter IV · Live Dashboard
LIVE · 998 TESTS · 21 RULES

What a real production line looks like, right now.

  • · Live demo on simulator.tangerineintelligence.ai — the same engine, running on a simulated PCB line.
  • · 21 causal rules, 998 tests, 18 streams. The numbers behind every tile are auditable.
PCB Production Line · Live
14:00
SMT ZONE
MANUAL ASSEMBLY
TESTING
FQC & PKG
SPP
P&P-1
P&P-2
REFLOW
AOI
ICT
FT-1
FT-2
FT-3
GW-01
GW-02
GW-03
Tangerine iFactory
PCB Assembly Line · Demo
Output Rate
0%
Quality Rate
0%
Avg Fatigue
0
Active Alerts
0
100/ 100Line Health
Worker Status
Read the deep dive →
daizhe@tangerineintelligence.aiIV / VIII
Chapter V · Research / IP
33 datasets · 11 patents · 9 papers
V / The model is the moat

The model is the moat. The data is the proof.

15M actions, 1.15M participants, 12 domains. 9 papers in flight, 11 active patents.

  • · 33 proprietary datasets · 15M actions · 1.15M participants · 12 domains.
  • · 9 papers in flight (target: Nature Human Behaviour, Nature Digital Medicine).
  • · 11 active patents.
DATASETS
33
12 domains · 15M actions
  • Foursquare Check-ins · 4,921,569
  • CS:GO Professional · 2,190,434
  • MovieLens 25M · 2,011,646
  • ASSISTments 2009 · 1,011,079
  • Yoochoose · ~1,000,000
see appendix →
PATENTS · DRAFTED
11
US-only · drafted
  • Behavioral state sensing
  • Sensor fusion
  • Privacy-preserving inference
see appendix →
PAPERS · IN FLIGHT
9
target Nature Human Behaviour et al.
  • Paper A · Nature Human Behaviour
  • Paper B · Nature Digital Medicine
  • Paper C · Journal of Manufacturing Systems
  • Paper 2 · Nature Human Behaviour
  • Paper 5 · Nature Human Behaviour
see appendix →
V · RESEARCH / IPV / VIII
Chapter VI · Proof
LIVE · SIMULATOR + CONSOLE
VI / Live product

The product runs today. Two public surfaces. See for yourself.

A live behavioral simulator and a live factory console. Active pilots with PCB manufacturers in the Pearl River and Yangtze deltas, deployments in progress.

Public surfaces — live
Behavioral simulator
simulator.tangerineintelligence.ai

Live factory behavioral streams and causal rules, running in real time. Open it.

Factory console
console.tangerineintelligence.ai

Workers, lines, and decisions on one screen. The full loop from signal to recommendation.

iFactory — In Conversations

PCB Tier-2 specialty manufacturers · Yangtze + Pearl River deltas

iFactory itself: in conversations with PCB Tier-2 specialty manufacturers across Yangtze + Pearl River deltas. No signed iFactory customer yet.

Status
In conversations · no paying customer
Geography
Yangtze Delta + Pearl River Delta
Segment
PCB Tier-2 specialty private manufacturers
VI · CUSTOMERSVI / VIII
Chapter VII · About
INC. 2026 · DE C-CORP
VII / About us

Two people, one bet: the worker is the last unmeasured variable.

Tangerine Intelligence Inc. — Delaware C-Corp, 2026. Operating between Berkeley, Shenzhen, and the factories we measure.

Daizhe Zou / 邹岱哲

CEO · CO-FOUNDER

UC Berkeley. Family factory background. Building the Tangerine Behavioral Model from a 21-year-old's vantage on the factory floor.

Hongyu Xu / 徐弘宇

CTO · CO-FOUNDER

Co-founder & CTO. Leads the Tangerine Behavioral Model — sensor pipeline, training, on-device inference.

TANGERINE INTELLIGENCE INC. · DELAWARE C-CORP, 2026 · BERKELEY · SHENZHEN
VII · ABOUTVII / VIII
Chapter VIII · Contact
VIII / VIII

Talk to us.

01 · PILOT IFACTORY
Pilot iFactory→
02 · DEEP DIVE ↗
Read the deep dive→
03 · PRESS / RESEARCH
Press enquiry→
Tangerine Intelligence Inc.
Delaware, USA · Shenzhen, China
daizhe@tangerineintelligence.ai
© 2026 Tangerine Intelligence Inc.
VIII / VIII · fin.