fix: 设备型号名称改为从 db tb_vechicle_base_test 动态查询，修复新增型号显示 Unknown 的问题

- handlers.py: B2 数据硬编码 dev_model_map {1:PD132,2:DLD110} → await get_dev_type_name()
- models.py: B4 波动数据硬编码 map → 同上
- models.py: 新增 get_dev_type_name() 带内存缓存，首次加载后缓存 type_num→dev_name
- models.py: 新增 refresh_dev_type_names() 供工装配置页新增型号后刷新缓存

src/handlers.py

@@ -33,6 +33,7 @@ from src.models import (
     insert_device_log,
     update_device_status,
     get_all_device_serials,
+    get_dev_type_name,
 )
 from src.dg430 import (
     parse_b2_status,
@@ -293,8 +294,7 @@ async def parse_loop():
                                 fault_info = decode_fault_info(status.fault)
                                 relay_info = decode_relay_info(status.relay_out)
 
-                                dev_model_map = {1: "PD132", 2: "DLD110"}
-                                str_type = dev_model_map.get(status.dev_model, f"Unknown({status.dev_model})")
+                                str_type = await get_dev_type_name(status.dev_model)
 
                                 await insert_test_result(
                                     dnt_id=dnt_id,

src/models.py

@@ -498,6 +498,42 @@ async def get_fixture_dev_type(dnt_id: int) -> int:
             return row[0] if row else 0
 
 
+# ─── 设备型号名称缓存 ──────────────────────────────────────────────────
+
+_dev_type_name_cache: dict[int, str] = {}
+_cache_loaded = False
+
+
+async def _load_dev_type_names():
+    """从 tb_vechicle_base_test 加载 type_num → dev_name 映射"""
+    global _dev_type_name_cache, _cache_loaded
+    pool = await get_pool()
+    async with pool.acquire() as conn:
+        async with conn.cursor() as cur:
+            await cur.execute(
+                "SELECT type_num, dev_name FROM tb_vechicle_base_test"
+            )
+            rows = await cur.fetchall()
+            _dev_type_name_cache = {row[0]: row[1] for row in rows if row[1]}
+            _cache_loaded = True
+            logger.debug(f"设备型号名称缓存已加载: {_dev_type_name_cache}")
+
+
+async def get_dev_type_name(dev_type: int) -> str:
+    """根据设备型号编码获取名称（从 tb_vechicle_base_test 查询，带内存缓存）"""
+    global _cache_loaded
+    if not _cache_loaded:
+        await _load_dev_type_names()
+    return _dev_type_name_cache.get(dev_type, f"Unknown({dev_type})")
+
+
+async def refresh_dev_type_names():
+    """刷新型号名称缓存（工装配置页新增型号后调用）"""
+    global _cache_loaded
+    _cache_loaded = False
+    await _load_dev_type_names()
+
+
 async def insert_test_result(dnt_id: int, dpg430_addr: int, pcnum: str,
                              serialnum: int, sub_type: int, str_type: str,
                              iffinish: str, fault_info: str, relay_out: str,
@@ -536,8 +572,7 @@ async def insert_wave_data(dnt_id: int, dpg430_addr: int,
     """插入 0xB4 波动测试上报数据到 tb_state_tst"""
     coil_id, simulate_car_id = await get_fixture_coil_car_ids(dnt_id)
     dev_type = await get_fixture_dev_type(dnt_id)
-    dev_model_map = {1: "PD132", 2: "DLD110"}
-    str_type = dev_model_map.get(dev_type, f"Unknown({dev_type})") if dev_type else ""
+    str_type = await get_dev_type_name(dev_type) if dev_type else ""
     pool = await get_pool()
     async with pool.acquire() as conn:
         async with conn.cursor() as cur: