608 lines
20 KiB
Markdown
608 lines
20 KiB
Markdown
# DronePlanning 处理 Pipeline 说明
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本文档说明当前后端从自然语言输入到计划 JSON 输出的完整处理流程,以及可自定义修改点。
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## 1. 总体流程
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入口为 `POST /generate_plan`,主链路由 `GenerationOrchestrator` 编排:
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```mermaid
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flowchart LR
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api[main.py /generate_plan] --> gen[py_tree_generator.generate]
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gen --> orch[GenerationOrchestrator]
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orch --> s1[Stage1 TaskUnderstanding]
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orch --> s2[Stage2 ContextBinding]
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orch --> s3[Stage3 MacroPlanning]
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s3 --> simple{simple?}
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simple -->|是| s6[Stage6 Validate]
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simple -->|否| s4[Stage4 Middleware]
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s4 --> s5[Stage5 MicroFilling]
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s5 --> s6
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s6 --> out[返回 py_tree JSON]
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```
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对应代码:
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- `backend_service/src/main.py`
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- `backend_service/src/py_tree_generator.py`
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- `backend_service/src/pipeline/orchestrator.py`
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- `backend_service/src/pipeline/stages.py`
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### 1.1 各 Stage 提示词模板一览
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| Stage | 是否调用 LLM | System 模板/片段(按组合顺序) | User 内容 |
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|-------|----------------|--------------------------------|------------|
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| Stage1 | 是 | `prompts/scene_classifier_prompt.txt` | 原始 `user_prompt` |
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| Stage2 | 否 | — | — |
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| Stage3 | 是 | **simple**:`simple_mode_prompt.txt`;**complex**:`macro_header.txt` → 裁剪的 `core_nodes.json` → `template_ground.txt` / `template_air.txt` → `common_rules.txt` → 可选 `system_extra_examples.txt` → 意图标签 | `user_prompt` + 参考知识(地点/模式/规则) |
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| Stage4 | 否 | — | — |
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| Stage5 | 是 | `micro_header.txt` → macro_tree JSON → resolved_data JSON → 裁剪的 `atomic/nodes_schema.json` | 固定句:「请直接输出完整的带有 params 参数的 JSON 树结构。」 |
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| Stage6 | 否 | — | — |
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各阶段模板的详细组合顺序与条件见对应小节(如 2.3、3.3、4.3、5.3、6.3、7.3)。
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### 1.2 提示词分配流程图
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下图按 Stage 标出各阶段使用的提示词模板及组合关系(仅含涉及 LLM 的 Stage):
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```mermaid
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flowchart TB
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subgraph S1["Stage1 任务理解"]
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direction TB
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P1_sys["system: scene_classifier_prompt.txt"]
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P1_usr["user: user_prompt"]
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end
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subgraph S2["Stage2 上下文绑定"]
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P2["无 LLM / 无提示词"]
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end
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subgraph S3["Stage3 宏观规划"]
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direction TB
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P3a["simple: system = simple_mode_prompt.txt"]
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P3b["complex: system = macro_header → core_nodes → template_ground/air → common_rules → 可选 system_extra_examples → 意图标签"]
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P3_usr["user: user_prompt + 参考知识"]
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end
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subgraph S4["Stage4 中间层解析"]
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P4["无 LLM / 无提示词"]
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end
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subgraph S5["Stage5 微观填参"]
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direction TB
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P5_sys["system: micro_header → macro_tree JSON → resolved_data JSON → atomic/nodes_schema 裁剪"]
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P5_usr["user: 固定句"]
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end
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subgraph S6["Stage6 校验与后处理"]
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P6["无 LLM / 无提示词"]
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end
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S1 --> S2 --> S3
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S3 --> S4 --> S5 --> S6
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```
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- **Stage1 / Stage3 / Stage5** 会调用 LLM,其 System/User 内容由上图对应框内模板或片段组合而成。
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- **Stage2 / Stage4 / Stage6** 不调用 LLM,无提示词分配。
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---
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## 2. Stage1:任务理解(TaskUnderstanding)
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功能:
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- 场景分类:`simple / scene1 / scene4`
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- 意图推断:`intent_type`
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- 风险标记:`risk_flags`(例如是否需要人工确认、是否涉及相对方位)
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核心代码:
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- `backend_service/src/llm/gateway.py::classify_scene()`
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- `backend_service/src/pipeline/stages.py::_infer_intent_type()`
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- `backend_service/src/pipeline/stages.py::_extract_risk_flags()`
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- 数据契约:`backend_service/src/pipeline/contracts.py::TaskUnderstanding`
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说明:
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- 分类模型可启用 thinking(由 `STAGE1_ENABLE_THINKING` 控制)。
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- 该阶段不依赖节点字典,避免循环依赖。
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### 2.1 输入格式
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`stage1_task_understanding(user_prompt: str)` 仅接受原始用户指令字符串。
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示例输入:
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```json
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{
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"user_prompt": "无人机当前在地面,到广场查找绿色公交车,找到后拍照。"
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}
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```
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### 2.2 输出格式(TaskUnderstanding)
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```json
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{
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"scene_mode": "scene4",
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"intent_type": "search_and_photo",
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"requires_relative_target": false,
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"entities": {
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"raw_prompt": "无人机当前在地面,到广场查找绿色公交车,找到后拍照。"
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},
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"risk_flags": [],
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"constraints": {}
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}
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```
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字段说明:
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- `scene_mode`: `simple | scene1 | scene4`
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- `intent_type`: 当前规则推导出的任务意图标签
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- `requires_relative_target`: 是否检测到相对方位需求
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- `entities`: 当前为轻量占位(最小包含 `raw_prompt`)
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- `risk_flags`: 风险标记列表(如 `needs_manual_confirmation`)
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- `constraints`: 约束占位(当前为空对象)
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### 2.3 本阶段组合的提示词模板
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| 角色 | 模板文件 | 路径 | 说明 |
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|--------|----------|------|------|
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| system | 场景分类 | `prompts/scene_classifier_prompt.txt` | 唯一 system 提示词,定义 simple/scene1/scene4 判定规则与示例 |
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| user | 用户原文 | 调用方传入的 `user_prompt` | 不做拼接,直接作为 user 消息 |
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组合方式:`messages = [ { "role": "system", "content": scene_classifier_prompt }, { "role": "user", "content": user_prompt } ]`。分类结果解析为 `scene_mode`,其余 `intent_type`、`risk_flags` 由本阶段规则函数从 `user_prompt` 推断,不读模板。
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## 3. Stage2:上下文绑定(ContextBinding)
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功能:
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- 按场景动态决定检索范围(location/pattern/rules)
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- 从多知识库并行检索并汇总
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- 相对目标提取(`relative_refs`)
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- 预计算航点(`precomputed_waypoints`,MVP)
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- 基于意图与风险推导 `required_actions`
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核心代码:
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- `backend_service/src/retrieval/retriever.py::UnifiedRetriever`
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- `backend_service/src/retrieval/adapters/chroma_adapter.py`
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- `backend_service/src/llm/tool_runtime.py`
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- `backend_service/src/pipeline/stages.py::stage2_context_binding()`
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- 数据契约:`backend_service/src/pipeline/contracts.py::ContextBinding`
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多知识库策略:
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- 主集合:`location_kb`、`pattern_kb`、`rules_kb`
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- 兼容集合:`drone_docs`
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- 若主集合无结果,会尝试从 `drone_docs` + `kb_type` 过滤回退查询
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### 3.1 输入格式
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该阶段接收:
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- `user_prompt: str`
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- Stage1 输出 `TaskUnderstanding`
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示例输入:
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```json
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{
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"user_prompt": "无人机当前在空中,去广场南边40米,持续监控5分钟,发现人就拍照。",
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"understanding": {
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"scene_mode": "scene4",
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"intent_type": "patrol_or_monitor",
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"requires_relative_target": false,
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"risk_flags": [],
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"entities": {"raw_prompt": "无人机当前在空中,去广场南边40米,持续监控5分钟,发现人就拍照。"},
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"constraints": {}
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}
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}
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```
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### 3.2 输出格式(ContextBinding)
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```json
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{
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"location_context": "地点:广场,坐标(x=120,y=30,z=0)...",
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"pattern_context": "示例:先到达命名地点,再监控,再条件触发拍照...",
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"rules_context": "",
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"citations": {
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"location": ["..."],
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"pattern": ["..."],
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"rules": []
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},
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"resolved_refs": {},
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"precomputed_waypoints": [
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{"x": 160.0, "y": 30.0, "z": 10.0}
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],
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"relative_refs": [],
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"required_actions": [
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"Sequence",
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"fly_to_waypoint",
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"loiter",
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"object_detect",
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"object_detected",
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"take_photos"
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]
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}
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```
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字段说明:
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- `*_context`: 分知识域拼接后的文本上下文
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- `citations`: 每个知识域的原始命中文档片段
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- `precomputed_waypoints`: Stage2 静态可解析时的预计算坐标
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- `relative_refs`: 相对目标结构化描述
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- `required_actions`: 后续用于节点裁剪注入的动作白名单
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### 3.3 本阶段组合的提示词模板
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本阶段**不调用 LLM**,无提示词模板。仅做检索(Location/Pattern/Rules)、规则推导(`required_actions`、`relative_refs`)、预计算航点。
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---
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## 4. Stage3:宏观规划(Macro Planning,Round 1)
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功能:
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- 组装 prompt(骨架 + 节点裁剪 + 模板 + 规则 + 检索结果)
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- 调用对应模型生成宏观树(及可选的 parameter_requests)
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- 解析模型响应(含 reasoning 提取)
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核心代码:
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- `backend_service/src/prompting/composer.py::PromptComposer.compose_macro()`
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- `backend_service/src/llm/gateway.py::generate_json()`
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- `backend_service/src/pipeline/stages.py::stage3_macro_planning()`
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- 数据契约:`backend_service/src/pipeline/contracts.py::BTDraft`
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关键行为:
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- simple 模式与复杂模式使用不同客户端/模型配置;Stage3 强制关闭 thinking,强制 `response_format=json_object`;节点定义采用裁剪注入(非全量注入)。
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### 4.1 输入格式(Stage3)
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该阶段接收:
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- `user_prompt: str`
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- `TaskUnderstanding`
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- `ContextBinding`
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核心输入(示例):
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```json
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{
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"scene_mode": "scene4",
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"intent_type": "search_and_photo",
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"required_actions": ["Sequence", "fly_to_waypoint", "rotate_search", "object_detected", "take_photos"],
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"risk_flags": [],
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"context_blocks": {
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"location": "地点:广场...",
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"pattern": "示例:先到达再搜索...",
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"rules": ""
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}
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}
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```
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### 4.2 输出格式(BTDraft)
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```json
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{
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"system_prompt": "...(裁剪后的系统提示词)...",
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"user_prompt": "原始指令 + 参考知识增强段",
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"allowed_nodes": {
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"actions": ["fly_to_waypoint", "rotate_search", "take_photos"],
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"conditions": ["object_detected"]
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},
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"llm_raw_json": {
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"root": {
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"type": "Sequence",
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"name": "Sequence",
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"children": [
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{"type": "action", "name": "fly_to_waypoint", "params": {"x": 120, "y": 30, "z": 10, "acceptance_radius": 2}},
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{"type": "action", "name": "rotate_search", "params": {"target_class": "bus"}},
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{"type": "condition", "name": "object_detected", "params": {"target_class": "bus"}},
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{"type": "action", "name": "take_photos", "params": {"target_class": "bus", "track_time": 8}}
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]
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}
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},
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"reasoning_text": null,
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"final_prompt": "=== System Prompt === ... === User Prompt === ..."
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}
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```
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字段说明:
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- `system_prompt/user_prompt`: 实际发给模型的提示词
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- `allowed_nodes`: 节点裁剪结果(用于调试与复盘)
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- `llm_raw_json`: 模型返回并解析后的原始计划 JSON
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- `reasoning_text`: 可选推理文本(若模型返回)
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- `final_prompt`: 完整组合记录(便于离线排查)
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### 4.3 本阶段组合的提示词模板
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**simple 模式**(单轮,直接出最终树):
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| 角色 | 模板/内容 | 路径 | 说明 |
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|--------|------------|------|------|
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| system | 简单模式全文 | `prompts/simple_mode_prompt.txt` | 直接作为 system,无拼接 |
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| user | 用户原文 + 参考知识 | 动态 | `user_prompt` + `_build_user_augmentation(context_blocks)` |
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**复杂模式**(scene1/scene4,宏观树 Round 1):
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System 按**顺序**拼接以下内容(来自 `prompting/composer.py::compose_macro()`):
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| 顺序 | 模板/内容 | 路径 | 说明 |
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|------|-----------|------|------|
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| 1 | 宏观任务头 | `prompts/partials/macro_header.txt` | 任务定义与输出要求 |
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| 2 | 节点定义(裁剪后) | `prompts/partials/core_nodes.json` | 按 `required_actions` + `risk_flags` 裁剪,最多 30 个 action/condition,格式化为「## 一、核心节点定义」+ JSON 代码块 |
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| 3 | 任务模板(二选一) | `prompts/partials/template_ground.txt` 或 `prompts/partials/template_air.txt` | 由 `drone_state`(on_ground / in_air)决定 |
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| 4 | 通用规则 | `prompts/partials/common_rules.txt` | 若文件存在则追加 |
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| 5 | 额外示例(可选) | `prompts/partials/system_extra_examples.txt` | 仅当 `intent_type == "generic_mission"` 时追加 |
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| 6 | 意图标签 | 代码生成 | 固定段落:`## 任务意图标签\n- intent_type: \`{intent_type}\`` |
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User 消息:
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- 内容 = `user_prompt` + 参考知识增强段。
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- 参考知识增强段由 `_build_user_augmentation(context_blocks)` 生成:若 `context_blocks` 中 `location` / `pattern` / `rules` 非空,则按顺序拼接为「【地点知识】…」「【任务模式】…」「【规则知识】…」,整体包在 `---\n参考知识:\n…\n---` 中。
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---
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## 5. Stage4:中间层解析(Middleware Resolution)
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功能:
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- 读取 Stage3 输出的 `parameter_requests`
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- 对含 `landmark` 等实体的请求做位置检索与航点预计算,写入 `resolved_data`
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- 其他实体透传为 `{node}_entities`,供 Stage5 使用
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核心代码:
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- `backend_service/src/pipeline/stages.py::stage4_middleware_resolution()`
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- 复用 `retriever.retrieve(scopes=["location"])` 与 `tool_runtime.build_precomputed_waypoint()`
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### 5.3 本阶段组合的提示词模板
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本阶段**不调用 LLM**,无提示词模板。仅做依赖解析与数据绑定。
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---
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## 6. Stage5:微观参数填空(Micro Parameter Filling,Round 2)
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功能:
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- 从 `prompts/atomic/nodes_schema.json` 按宏观树中用到的节点名裁剪出 `atomic_schema`
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- 调用 `PromptComposer.compose_micro()` 组装 Round 2 的 system 提示词
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- 再次调用模型,输出带完整 `params` 的 JSON 树
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核心代码:
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- `backend_service/src/prompting/composer.py::compose_micro()`
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- `backend_service/src/pipeline/stages.py::stage5_micro_filling()`
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### 6.3 本阶段组合的提示词模板
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| 角色 | 模板/内容 | 路径 | 说明 |
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|--------|------------|------|------|
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| system | 微观任务头 | `prompts/partials/micro_header.txt` | 第一段 |
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| system | 宏观骨架树 | 运行时 | `## 1. 原宏观骨架树 (macro_tree)` + `draft.macro_tree` 的 JSON |
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| system | 确切数据字典 | 运行时 | `## 2. 确切数据字典 (resolved_data)` + Stage4 输出的 `resolved_data` JSON |
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| system | 原子节点规范 | `prompts/atomic/nodes_schema.json`(按需裁剪) | `## 3. 原子节点规范 (atomic_schema)`;仅保留宏观树中出现的 action/condition 的 schema |
|
||
| user | 固定指令 | 代码写死 | `"请直接输出完整的带有 params 参数的 JSON 树结构。"` |
|
||
|
||
组合方式:system = 上述四段用 `\n\n` 拼接;user = 固定字符串。Round 2 不再注入 RAG 检索块。
|
||
|
||
---
|
||
|
||
## 7. Stage6:校验与后处理(ValidateAndPostprocess)
|
||
|
||
功能:
|
||
|
||
- JSON Schema 校验(simple / complex)
|
||
- 注入 `plan_id`、`visualization_url`、`final_prompt`
|
||
- 保存推理链与历史记录
|
||
- 在复杂场景下注入 `context.relative_refs`(及可选 `context.resolved_refs`)
|
||
|
||
核心代码:
|
||
|
||
- `backend_service/src/validation/validator.py`
|
||
- `backend_service/src/validation/schema_provider.py`
|
||
- `backend_service/src/pipeline/stages.py::stage6_validate_and_postprocess()`
|
||
- `backend_service/src/py_tree_generator.py::render_visualization()`
|
||
- `backend_service/src/py_tree_generator.py::_save_history()`
|
||
|
||
### 7.1 输入格式
|
||
|
||
该阶段接收:
|
||
|
||
- `user_prompt: str`
|
||
- `TaskUnderstanding`
|
||
- `ContextBinding`
|
||
- `BTDraft`
|
||
- 复杂模式下还有 Stage5 的 `final_tree`;simple 模式下为 `draft.llm_raw_json`
|
||
|
||
### 7.2 输出格式(最终 API 返回)
|
||
|
||
复杂模式示例:
|
||
|
||
```json
|
||
{
|
||
"root": {
|
||
"type": "Sequence",
|
||
"name": "Sequence",
|
||
"children": [
|
||
{"type": "action", "name": "fly_to_waypoint", "params": {"x": 120, "y": 30, "z": 10, "acceptance_radius": 2}},
|
||
{"type": "action", "name": "rotate_search", "params": {"target_class": "bus"}},
|
||
{"type": "condition", "name": "object_detected", "params": {"target_class": "bus"}},
|
||
{"type": "action", "name": "take_photos", "params": {"target_class": "bus", "track_time": 8}}
|
||
]
|
||
},
|
||
"context": {
|
||
"relative_refs": [
|
||
{"anchor": "front_building", "relation": "left", "distance_m": 20.0}
|
||
],
|
||
"resolved_refs": {
|
||
"strategy": "backend_static_resolution",
|
||
"waypoints": [{"x": 120.0, "y": 30.0, "z": 10.0}]
|
||
}
|
||
},
|
||
"plan_id": "6a924d0d-f1a7-4ef1-a9fa-31f73f3115ce",
|
||
"visualization_url": "/static/py_tree.png",
|
||
"final_prompt": "=== System Prompt === ... === User Prompt === ..."
|
||
}
|
||
```
|
||
|
||
simple 模式示例:
|
||
|
||
```json
|
||
{
|
||
"root": {
|
||
"type": "action",
|
||
"name": "move_direction",
|
||
"params": {"direction": "north", "distance": 50}
|
||
},
|
||
"plan_id": "0f0e5e5f-b9a2-4e6f-95f5-c95e9e6280a5",
|
||
"visualization_url": "/static/py_tree.png",
|
||
"final_prompt": "=== System Prompt === ... === User Prompt === ..."
|
||
}
|
||
```
|
||
|
||
字段说明:
|
||
|
||
- `root`: 通过 schema 校验后的行为树根节点
|
||
- `context`: 仅在复杂模式且命中相对目标时追加
|
||
- `plan_id`: 每次生成唯一 ID
|
||
- `visualization_url`: 最新可视化图访问路径
|
||
- `final_prompt`: 生成时使用的完整提示词记录
|
||
|
||
### 7.3 本阶段组合的提示词模板
|
||
|
||
本阶段**不调用 LLM**,无提示词模板。仅做校验、注入元数据与写盘。
|
||
|
||
---
|
||
|
||
## 8. 数据入库(RAG Ingestion)逻辑
|
||
|
||
入库脚本:
|
||
|
||
- `tools/rag/ingest.py`
|
||
|
||
行为:
|
||
|
||
- 扫描 `tools/rag/knowledge_base/`
|
||
- 根据子目录推断 `kb_type`(location/pattern/rules)
|
||
- 同时写入:
|
||
- `drone_docs`(兼容)
|
||
- `location_kb` / `pattern_kb` / `rules_kb`(新检索路径)
|
||
|
||
## 9. 可自定义修改点(推荐按优先级)
|
||
|
||
### 9.1 场景与意图逻辑
|
||
|
||
可改文件:
|
||
|
||
- `backend_service/src/pipeline/stages.py`
|
||
|
||
可改内容:
|
||
|
||
- `_infer_intent_type()`:扩展意图类别
|
||
- `_extract_risk_flags()`:新增风险规则
|
||
- `_derive_required_actions()`:调整规则推导的动作集合
|
||
|
||
### 9.2 Prompt 策略
|
||
|
||
可改文件:
|
||
|
||
- `backend_service/src/prompting/composer.py`
|
||
- `backend_service/src/prompts/prompt_manifest.yaml`
|
||
- `backend_service/src/prompts/partials/*`
|
||
|
||
可改内容:
|
||
|
||
- 骨架片段选择
|
||
- 节点裁剪规则(当前上限 30)
|
||
- 示例注入策略(何时注入 extra examples)
|
||
- 用户侧检索增强格式
|
||
|
||
### 9.3 模型路由与推理参数
|
||
|
||
可改文件:
|
||
|
||
- `backend_service/src/llm/gateway.py`
|
||
|
||
可改内容:
|
||
|
||
- 分类模型与生成模型分流策略
|
||
- `temperature`、`max_tokens`、重试次数
|
||
- thinking 开关策略(Stage1/Stage3)
|
||
|
||
### 9.4 检索策略
|
||
|
||
可改文件:
|
||
|
||
- `backend_service/src/retrieval/retriever.py`
|
||
- `backend_service/src/retrieval/adapters/chroma_adapter.py`
|
||
- `tools/rag/ingest.py`
|
||
|
||
可改内容:
|
||
|
||
- 检索并发策略与 `top_k`
|
||
- 回退策略(主集合与兼容集合)
|
||
- kb_type 划分方式
|
||
- 文档切分与 metadata 设计
|
||
|
||
### 9.5 相对目标解析
|
||
|
||
可改文件:
|
||
|
||
- `backend_service/src/pipeline/stages.py`
|
||
- `backend_service/src/llm/tool_runtime.py`
|
||
|
||
可改内容:
|
||
|
||
- `relative_refs` 抽取规则
|
||
- 静态解析能力(何时生成 `resolved_refs`)
|
||
- 与 UAV 端协议字段兼容策略
|
||
|
||
### 9.6 校验与输出协议
|
||
|
||
可改文件:
|
||
|
||
- `backend_service/src/validation/validator.py`
|
||
- `backend_service/src/validation/schema_provider.py`
|
||
- `backend_service/src/py_tree_generator.py`(schema 来源)
|
||
|
||
可改内容:
|
||
|
||
- simple/complex schema 约束强度
|
||
- 顶层 `context` 字段的可选校验
|
||
- 失败错误信息与恢复策略
|
||
|
||
## 10. 关键环境变量
|
||
|
||
- `ORIN_IP`
|
||
- `OPENAI_API_KEY`
|
||
- `CLASSIFIER_MODEL` / `SIMPLE_MODEL` / `COMPLEX_MODEL`
|
||
- `CLASSIFIER_BASE_URL` / `SIMPLE_BASE_URL` / `COMPLEX_BASE_URL`
|
||
- `STAGE1_ENABLE_THINKING`
|
||
- `ENABLE_REASONING_CAPTURE`
|
||
- `REASONING_PREVIEW_LINES`
|
||
|
||
## 11. 自定义改造建议(实践顺序)
|
||
|
||
1. 先改 Stage1 规则推导(低风险,收益快)
|
||
2. 再改 PromptComposer 的裁剪与注入(控制长度与稳定性)
|
||
3. 再改检索策略(top_k、回退、metadata)
|
||
4. 最后改 schema 与输出协议(需联动执行端)
|
||
|
||
## 12. 变更后最小回归清单
|
||
|
||
每次改造后至少验证:
|
||
|
||
1. simple 指令:返回 `root.action`,且无 children
|
||
2. scene4 指令:有复合树结构,JSON 可解析
|
||
3. relative 指令:复杂模式下出现 `context.relative_refs`
|
||
4. `/generate_plan` 不变更接口字段(兼容外部调用)
|
||
5. `python tools/rag/ingest.py` 可完成入库(或输出可定位错误)
|
||
|