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56
services/compliance-backend/app/core/llm.py
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56
services/compliance-backend/app/core/llm.py
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from langchain_openai import ChatOpenAI
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from tenacity import retry, stop_after_attempt, wait_exponential
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from .config import settings
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def get_llm(temperature: float = 0.1) -> ChatOpenAI:
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"""获取 LLM 客户端(DeepSeek 或 Qwen,均兼容 OpenAI API)"""
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if settings.llm_provider == "deepseek":
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return ChatOpenAI(
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model=settings.deepseek_model,
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api_key=settings.deepseek_api_key,
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base_url="https://api.deepseek.com/v1",
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temperature=temperature,
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max_retries=3,
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timeout=120,
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)
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elif settings.llm_provider == "qwen":
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return ChatOpenAI(
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model=settings.qwen_model,
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api_key=settings.dashscope_api_key,
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base_url="https://dashscope.aliyuncs.com/compatible-mode/v1",
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temperature=temperature,
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max_retries=3,
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timeout=120,
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)
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raise ValueError(f"不支持的 LLM 提供商:{settings.llm_provider}")
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RAG_SYSTEM_PROMPT = """你是一位专业的汽车行业合规专家,具备深厚的法规知识(GB标准、UN-ECE、ISO 45001、IATF 16949等)。
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回答规则:
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1. 仅基于提供的参考文献回答,不添加不在文献中的信息
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2. 每个关键陈述必须标注来源(格式:[来源:文件名,第X页])
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3. 如果参考文献不足以回答问题,明确说明
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4. 使用专业但清晰的语言,适合工程师和法务人员阅读
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5. 对于数值要求(如绝缘电阻值、时间限制等),精确引用原文"""
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COMPLIANCE_CHECK_PROMPT = """你是一位专业的汽车合规审查专家。
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请对以下内容进行合规性评估:
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【待审查内容】
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{content}
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【相关法规要求】
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{regulations}
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请按以下格式输出:
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1. 整体风险等级:[low/medium/high/critical]
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2. 风险分数:[0-100]
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3. 发现的合规问题(逐条列出):
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- 问题描述
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- 违反的具体法规条款
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- 严重程度
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4. 整改建议(具体可操作)"""
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