diff --git a/viewsh-module-iot/viewsh-module-iot-gateway/src/main/java/com/viewsh/module/iot/gateway/codec/camera3d11/IotCamera3D11Codec.java b/viewsh-module-iot/viewsh-module-iot-gateway/src/main/java/com/viewsh/module/iot/gateway/codec/camera3d11/IotCamera3D11Codec.java
index e4017bd..7c29854 100644
--- a/viewsh-module-iot/viewsh-module-iot-gateway/src/main/java/com/viewsh/module/iot/gateway/codec/camera3d11/IotCamera3D11Codec.java
+++ b/viewsh-module-iot/viewsh-module-iot-gateway/src/main/java/com/viewsh/module/iot/gateway/codec/camera3d11/IotCamera3D11Codec.java
@@ -10,6 +10,7 @@ import com.viewsh.module.iot.gateway.codec.camera3d11.dto.Camera3D11DataUploadRe
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
 
+import java.time.Duration;
 import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
@@ -48,11 +49,17 @@ public class IotCamera3D11Codec implements IotDeviceMessageCodec {
         params.put("stat_start_time", payload.getStartTime());
         params.put("stat_end_time", payload.getEndTime());
 
-        // 3. 使用 endTime 作为上报时间
+        // 3. 使用 time 作为上报时间，超过 24 小时的数据舍弃
         LocalDateTime reportTime = LocalDateTime.now();
-        if (payload.getEndTime() != null) {
+        if (payload.getTime() != null) {
             reportTime = LocalDateTime.ofInstant(
-                    Instant.ofEpochSecond(payload.getEndTime()), ZoneId.systemDefault());
+                    Instant.ofEpochSecond(payload.getTime()), ZoneId.systemDefault());
+            long hoursDiff = Math.abs(Duration.between(reportTime, LocalDateTime.now()).toHours());
+            if (hoursDiff > 24) {
+                log.warn("[decode][设备时间超过24小时，舍弃数据: time={}, 时间差: {}小时]",
+                        payload.getTime(), hoursDiff);
+                return null;
+            }
         }
 
         return IotDeviceMessage.requestOf(IotDeviceMessageMethodEnum.PROPERTY_POST.getMethod(), params)
diff --git a/viewsh-module-iot/viewsh-module-iot-gateway/src/main/java/com/viewsh/module/iot/gateway/protocol/http/router/IotCameraUpstreamHandler.java b/viewsh-module-iot/viewsh-module-iot-gateway/src/main/java/com/viewsh/module/iot/gateway/protocol/http/router/IotCameraUpstreamHandler.java
index 3214ee0..75d016d 100644
--- a/viewsh-module-iot/viewsh-module-iot-gateway/src/main/java/com/viewsh/module/iot/gateway/protocol/http/router/IotCameraUpstreamHandler.java
+++ b/viewsh-module-iot/viewsh-module-iot-gateway/src/main/java/com/viewsh/module/iot/gateway/protocol/http/router/IotCameraUpstreamHandler.java
@@ -130,13 +130,11 @@ public class IotCameraUpstreamHandler implements Handler<RoutingContext> {
             return;
         }
 
-        // 3. 解码并发送消息
+        // 3. 解码并发送消息（解码失败或数据过期时仍返回成功，避免设备重试）
         IotDeviceMessage message = deviceMessageService.decodeDeviceMessage(bytes, IotCamera3D11Codec.TYPE);
-        if (message == null) {
-            IotHttpAbstractHandler.writeResponse(context, Camera3D11Resp.error("消息解码失败"));
-            return;
+        if (message != null) {
+            deviceMessageService.sendDeviceMessage(message, productKey, req.getSn(), null);
         }
-        deviceMessageService.sendDeviceMessage(message, productKey, req.getSn(), null);
 
         // 4. 构建响应
         long currentTime = LocalDateTime.now().atZone(ZONE_SHANGHAI).toEpochSecond();