Precision Intelligence for the Soil.
Qidian VP is a concept-stage architecture for combining multimodal data processing with real-world grounding to test whether farmers can receive useful, safer first-line crop guidance.
AI Architecture — Built on Google
Qidian VP is planned as a vertical AI application layered on top of Google's AI infrastructure. The MVP will test whether a focused Gemini workflow can support practical crop advisory use cases.
Gemini Vision — Crop Analysis
Gemini 2.0 Flash's native vision capability can process farm photos. Qidian VP plans to validate image-based crop issue detection across priority crops such as rice, maize, cassava, and sugarcane.
Voice — Cloud Speech-to-Text v2
The MVP will test farmer voice input, starting with Vietnamese farmer language. Broader regional dialect support is a roadmap item after initial validation.
Search Grounding — Reduced Hallucination Risk
The planned response flow will use Google Search Grounding to tie advice to selected agronomic references and reduce unsupported AI output.
Unified Gemini Response Engine
The intended MVP flow sends crop photo, symptom text or voice transcript, and selected context to Gemini. The target response is structured JSON with likely issue, confidence, suggested next step, estimated cost, and citations.
Grounded in Reality, Not Hallucinations.
Unlike a generic chatbot, Qidian VP is being designed to use Gemini's Search Grounding feature so responses can be traceable to selected agronomic references. This approach still needs to be tested with farmers and agronomists.
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checkFAO & IRRI Open-Access Database Integration Candidate references include the International Rice Research Institute's disease library and FAO crop protection resources.
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checkCommodity Price Feed Roadmap Regional commodity data sources will be evaluated after the diagnostic MVP is working.
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checkTraceable Source Citations The planned output format includes source links so agronomists can review answer quality.
Data Sovereignty & Google Cloud Security
Qidian VP is intended to run on Google Cloud infrastructure. The MVP will be designed with consent, regional deployment choices, access controls, and encryption in mind before any real farmer data is collected.
Target Benchmarks for MVP Validation
These are validation targets and cost assumptions, not measured production or pilot results.
<10s
Response-Time Target
To be measured during MVP testing using crop image + symptom text/voice transcript + grounded context.
TBD
Diagnostic Accuracy
To be validated with agronomist review and documented test cases before any production claim.
Est.
Cost per Diagnosis
A working cost model will be checked against actual Google Cloud usage during MVP testing.
monitoring Detailed Validation Metrics — Planned
| Metric | Value | Notes |
|---|---|---|
| Gemini API Uptime | To measure | Track during MVP usage in selected Google Cloud regions |
| Voice Recognition Accuracy | To measure | Start with Vietnamese farmer language and expand only after validation |
| Offline Model Accuracy | Future test | AI Edge is a later offline inference direction, not part of the first MVP claim |
| Image Processing | Low-latency | Image pre-processing + upload for 12MP smartphone photo (varies by network conditions) |
| Concurrent Users Tested | To test | Load testing after MVP endpoint implementation |
| Cold Start Time | To measure | Cold starts and latency to be measured from real Cloud Run deployment |
| Monthly GCP Cost | Estimate | To be forecast from measured MVP usage, not from completed pilot data |
Crop Disease Coverage Roadmap — 240+ Target Conditions
Qidian VP's target taxonomy covers major diseases, pests, and nutritional deficiencies affecting Southeast Asia's staple crops. Candidate references include public datasets and open agronomic resources; no proprietary pilot image dataset is claimed yet.
Rice
98 target conditions
- Rice Blast (Magnaporthe oryzae)
- Bacterial Leaf Blight
- Sheath Blight (Rhizoctonia)
- Brown Planthopper (BPH)
- Tungro Virus Complex
- Stem Borer
- Nitrogen/Phosphorus Deficiency
- + 91 more target conditions
Maize
62 target conditions
- Fall Armyworm (Spodoptera)
- Northern Leaf Blight
- Stalk Rot Complex
- Downy Mildew
- Maize Streak Virus
- Ear Rot (Fusarium)
- Zinc Deficiency
- + 55 more target conditions
Cassava
47 target conditions
- Cassava Mosaic Disease
- Bacterial Blight (Xanthomonas)
- Cassava Mealybug
- Brown Leaf Spot
- Anthracnose
- White Fly Infestation
- Root Rot
- + 40 more target conditions
Sugarcane
33 target conditions
- Red Rot (Colletotrichum)
- Smut Disease
- Top Borer
- Rust (Puccinia)
- Wilt Disease
- Leaf Scald
- Iron Chlorosis
- + 26 more target conditions
Expansion Roadmap:
Coffee, rubber, and tropical fruit crops are future roadmap candidates. University or research collaboration will be pursued only after the initial MVP scope is validated.
System Architecture
Planned end-to-end data flow from farmer's smartphone to AI-assisted draft guidance and back — all designed for Google Cloud.
Client Layer
Flutter Mobile App
PWA (Lite version)
Google AI Edge SDK
Firebase Auth
API Gateway
Cloud Run (Serverless)
Cloud Endpoints
Cloud Armor (DDoS)
Identity Platform
AI Engine
Gemini 2.0 Flash
Vertex AI Pipeline
Search Grounding API
Speech-to-Text v2
Data Storage
Firestore · Cloud Storage · BigQuery
External APIs
Google Maps · Weather API · Commodity Exchanges
Observability
Cloud Monitoring · Cloud Trace · Error Reporting
Limitations & Known Constraints
What Qidian VP cannot do yet — and what we're working to improve.
- warning Qidian VP does not replace professional agronomist consultation for complex multi-disease interactions.
- warning Accuracy has not yet been validated; crop-by-crop performance must be measured during pilot testing.
- warning Voice recognition must be tested in noisy field environments before support claims are made.
- warning Offline capture is planned; on-device diagnosis and full treatment workflows require further validation.
- warning Initial scope targets 4 crop categories; tropical fruits and tree crops remain future candidates.
Review the MVP Architecture
We are seeking technical feedback, cloud support, and early validation partners before building the first field-testable MVP.