diff --git a/src/main/java/com/ruoyi/device/service/impl/BufferDeviceImpl.java b/src/main/java/com/ruoyi/device/service/impl/BufferDeviceImpl.java
index b0c3138..e100582 100644
--- a/src/main/java/com/ruoyi/device/service/impl/BufferDeviceImpl.java
+++ b/src/main/java/com/ruoyi/device/service/impl/BufferDeviceImpl.java
@@ -406,6 +406,15 @@ public class BufferDeviceImpl implements IBufferDeviceService
         telemetryMap.get(DeviceTelemetry.Total_Flight_Sorties)
                 .ifPresent(telemetryValue -> dto.setMissionCount(telemetryValue.getValue()));
 
+        // RTK 信号 - 从 position_state.rtk_number 获取 RTK 搜星数量
+        telemetryMap.get(DeviceTelemetry.Position_State_Rtk_Number)
+                .ifPresent(telemetryValue -> {
+                    Integer rtkNumber = telemetryValue.getValue();
+                    if (rtkNumber != null) {
+                        dto.setRtkSignal(rtkNumber.doubleValue());
+                    }
+                });
+
         return dto;
     }