diff --git a/src/main/java/com/isu/gaswellwatch/service/impl/DeviceServiceImpl.java b/src/main/java/com/isu/gaswellwatch/service/impl/DeviceServiceImpl.java
index 2e0fea1..c53b6cd 100644
--- a/src/main/java/com/isu/gaswellwatch/service/impl/DeviceServiceImpl.java
+++ b/src/main/java/com/isu/gaswellwatch/service/impl/DeviceServiceImpl.java
@@ -19,6 +19,7 @@ import com.isu.gaswellwatch.exception.BusinessException;
 import com.isu.gaswellwatch.modbus.data.CacheService;
 import com.isu.gaswellwatch.modbus.data.PersistenceHandler;
 import com.isu.gaswellwatch.modbus.data.Redis2DBPersistenceService;
+import com.isu.gaswellwatch.modbus.data.decode.impl.LocalDateTimeDecodeHandler;
 import com.isu.gaswellwatch.service.*;
 import com.isu.gaswellwatch.utils.ConverterUtil;
 import com.isu.gaswellwatch.vo.*;
@@ -36,6 +37,7 @@ import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
+import java.time.LocalDateTime;
 import java.util.*;
 
 
@@ -98,6 +100,7 @@ public class DeviceServiceImpl extends ServiceImpl<DeviceDao, Device> implements
             Map<String, Dictionary> miWepsPlugStatus = this.dictionaryService.getValueMapByType("miWepsPlugStatus");
 
             try {
+                LocalDateTime now = LocalDateTime.now(), earliestTime = now.minusMinutes(5);
                 for (DeviceVO deviceVO : deviceVOList) {
                     String deviceKey = PersistenceHandler.DEVICE_DATA_CACHE + deviceVO.getId();
                     Object online = this.redisTemplate.opsForHash().get(deviceKey, "online");
@@ -107,6 +110,15 @@ public class DeviceServiceImpl extends ServiceImpl<DeviceDao, Device> implements
                         continue;
                     }
 
+                    Object collectionTime = this.redisTemplate.opsForHash().get(deviceKey, "collectionTime");
+                    if (Objects.nonNull(collectionTime)) {
+                        LocalDateTime collectionLocalDateTime = LocalDateTime.parse(String.valueOf(collectionTime),
+                                LocalDateTimeDecodeHandler.OUT_FORMATTER);
+                        if (earliestTime.isBefore(collectionLocalDateTime)) {
+                            continue;
+                        }
+                    }
+
                     Object casPressure = this.redisTemplate.opsForHash().get(deviceKey, "casPressure");
                     deviceVO.setCasPressure(casPressure == null ? "" : casPressure.toString());
 
diff --git a/src/main/resources/mapper/DeviceDao.xml b/src/main/resources/mapper/DeviceDao.xml
index 720d15c..8e2e6a4 100644
--- a/src/main/resources/mapper/DeviceDao.xml
+++ b/src/main/resources/mapper/DeviceDao.xml
@@ -48,7 +48,6 @@
             </if>
         </where>
         order by u.id desc
-        limit 10
     </select>
 
     <select id="page" resultMap="DeviceVOMap">