diff --git a/apps/ecm/service.py b/apps/ecm/service.py
index 81cdce85..087c2b65 100644
--- a/apps/ecm/service.py
+++ b/apps/ecm/service.py
@@ -447,7 +447,7 @@ def rail_out(data):
 
 def loc_change(data):
     blts = TDevice.objects.filter(code=data['userId']).first()
-    if blts.employee:
+    if blts and blts.employee:
         # 从缓存查询人员位置信息
         key_str = 'ep_{}'.format(blts.employee.id)
         ep_loc_dict = cache.get_or_set(
@@ -485,7 +485,7 @@ def handle_xx_event(name: str, data: dict):
     # 有绑定对象再提示事件(包括一键报警事件/低电量)
     blts = TDevice.objects.filter(code=data['mac']).first()
     ep_loc_dict = {}
-    if blts.employee:
+    if blts and blts.employee:
         # 触发事件
         cate = EventCate.objects.filter(code=name).first()
         # 找到最近未处理同一人发生的事件
diff --git a/apps/third/models.py b/apps/third/models.py
index 8748e032..3a4c17ee 100755
--- a/apps/third/models.py
+++ b/apps/third/models.py
@@ -44,7 +44,7 @@ class TDevice(BaseModel):
                                     null=True, blank=True)
     is_clock = models.BooleanField('是否打卡设备', default=False)
     access_list = models.JSONField('自动下发人员类型', default=list,
-                                   null=False, blank=True, help_text='employee/remployee/visitor')
+                                   null=False, blank=True, help_text='employee/remployee/visitor/driver')
     third_info = models.JSONField('三方信息', default=dict,
                                   null=False, blank=True)