diff --git a/apps/am/serializers.py b/apps/am/serializers.py
index 79c99640..7c6a28b5 100644
--- a/apps/am/serializers.py
+++ b/apps/am/serializers.py
@@ -55,18 +55,10 @@ class AccessCreateSerializer(CustomModelSerializer):
 
 
 class AccessSerializer(CustomModelSerializer):
-    obj_ = serializers.SerializerMethodField()
+    employee_name = serializers.CharField(source='employee.name', read_only=True)
+    post_name = serializers.CharField(source='post.name', read_only=True)
+    dept_name = serializers.CharField(source='dept.name', read_only=True)
 
     class Meta:
         model = Access
         fields = '__all__'
-
-    def get_obj_(self, obj):
-        if obj.obj_cate == 'employee':
-            ep = Employee.objects.filter(id=obj.obj).first()
-            if ep:
-                return {'id': ep.id, 'name': ep.name}
-        elif obj.obj_cate == 'post':
-            pt = Post.objects.filter(id=obj.obj).first()
-            if pt:
-                return {'id': pt.id, 'name': pt.name}
diff --git a/apps/am/views.py b/apps/am/views.py
index 82f75971..297542a9 100755
--- a/apps/am/views.py
+++ b/apps/am/views.py
@@ -48,4 +48,5 @@ class AccessViewSet(ListModelMixin, CreateModelMixin, DestroyModelMixin, CustomG
     queryset = Access.objects.all()
     create_serializer_class = AccessCreateSerializer
     serializer_class = AccessSerializer
-    filterset_fields = ['area', 'type', 'obj_cate', 'post', 'dept']
+    filterset_fields = ['area', 'type', 'obj_cate', 'post', 'dept', 'employee']
+    select_related_fields = ['area', 'post', 'dept', 'employee']
diff --git a/apps/ecm/service.py b/apps/ecm/service.py
index 93fb6cbb..61f89242 100644
--- a/apps/ecm/service.py
+++ b/apps/ecm/service.py
@@ -24,12 +24,14 @@ class EcmService:
     """事件处理服务
     """
 
-    ep_default_dict = {
-        'area_fix_id': None,  # 当前所在固定区域ID
-        'time0': None,  # 定位首次出现时间戳
-        "time1": None,  # 首次在该区域时间戳
-        "time2": int(time.time()),  # 当前时间戳
-    }
+    @classmethod
+    def get_ep_default(cls):
+        return {
+            'area_fix_id': None,  # 当前所在固定区域ID
+            'time0': None,  # 定位首次出现时间戳
+            "time1": None,  # 首次在该区域时间戳
+            "time2": int(time.time()),  # 当前时间戳
+        }
 
     def create_remind_and_speak(cls):
         """
@@ -91,9 +93,9 @@ class EcmService:
                 # 更新人员位置信息缓存
                 key_str = 'ep_{}'.format(blts.employee.id)
                 ep_loc_dict = cache.get_or_set(
-                    key_str, cls.ep_default_dict, timeout=None
+                    key_str, cls.get_ep_default(), timeout=None
                 )
-                if ep_loc_dict['area_fix_id'] != area.id: # 如果区域未变化则不动
+                if ep_loc_dict['area_fix_id'] != area.id:  # 如果区域未变化则不动
                     ep_loc_dict['time1'] = ep_loc_dict['time2']
                     ep_loc_dict['area_fix_id'] = area.id
                     cache.set(key_str, ep_loc_dict)
@@ -166,7 +168,7 @@ class EcmService:
             time2 = int(time.time())
             key_str = 'ep_{}'.format(blts.employee.id)
             ep_loc_dict = cache.get_or_set(
-                key_str, cls.ep_default_dict, timeout=None
+                key_str, cls.get_ep_default(), timeout=None
             )
             ep_loc_dict['time2'] = time2
             # 从缓存里获取固定区域列表信息