diff --git a/Service/AlarmService.cs b/Service/AlarmService.cs
index 659376f..095c61c 100644
--- a/Service/AlarmService.cs
+++ b/Service/AlarmService.cs
@@ -85,15 +85,20 @@ namespace LY.App.Service
             {
                 var key = RedisKeyList.PositioinRegion(positionId);
                 var geodata = await _redisService.GetAsync<string>(key);
+                if (geodata == null)
+                {
+                    geodata = await _db.CopyNew().Queryable<PositionInfo>()
+                       .Where(s => s.Id == positionId)
+                       .Select(s => s.Region)
+                       .FirstAsync();
+                   await _redisService.SetAsync<string>(key, geodata);
+                }
                 WKTReader reader = new WKTReader();
                 Geometry point = reader.Read($"POINT ({lon} {lat})");
-                if (!string.IsNullOrEmpty(geodata))
+                Geometry multipolygon = reader.Read(geodata);
+                if (multipolygon.Contains(point))
                 {
-                    Geometry multipolygon = reader.Read(geodata);
-                    if (multipolygon.Contains(point))
-                    {
-                        return 1;
-                    }
+                    return 1;
                 }
             }
             return result;
diff --git a/Service/DeviceService.cs b/Service/DeviceService.cs
index 8cbae90..f0a1b8b 100644
--- a/Service/DeviceService.cs
+++ b/Service/DeviceService.cs
@@ -169,7 +169,7 @@ namespace LY.App.Service
             foreach (var item in position)
             {
                 var key = RedisKeyList.PositioinRegion(item.Id);
-                await _redisService.SetAsync(key, item.Region, TimeSpan.FromDays(100));
+                await _redisService.SetAsync(key, item.Region);
             }
         }
     }