diff --git a/ruoyi-service/src/main/java/com/ruoyi/bst/device/utils/DeviceUtil.java b/ruoyi-service/src/main/java/com/ruoyi/bst/device/utils/DeviceUtil.java
index 4147ce4..61beda9 100644
--- a/ruoyi-service/src/main/java/com/ruoyi/bst/device/utils/DeviceUtil.java
+++ b/ruoyi-service/src/main/java/com/ruoyi/bst/device/utils/DeviceUtil.java
@@ -87,7 +87,7 @@ public class DeviceUtil {
         if (device == null || info == null) {
             return;
         }
-        
+
         // 设置设备信息
         if (info.containsKey(DeviceCacheKey.VOLTAGE)) {
             device.setVoltage(JsonUtils.getBigDecimal(info.get(DeviceCacheKey.VOLTAGE)));
@@ -186,11 +186,13 @@ public class DeviceUtil {
 
     /**
      * 卫星信号弱
+     * 仅卫星信号不为空才判断，若为空，则不判断是否弱信号
+     * 因为老模块没有卫星信号
      * @param s
      * @return
      */
     public static boolean isLowSatelliteSignal(Integer s) {
-        return s == null || s <= 5;
+        return s != null && s <= 5;
     }
 
     /**
@@ -212,7 +214,7 @@ public class DeviceUtil {
      * @return
      */
     public static boolean validMobileLocation(BigDecimal lon, BigDecimal lat) {
-        return lon != null && lat != null 
+        return lon != null && lat != null
             && !MathUtils.equals(lon, BigDecimal.ZERO) && !MathUtils.equals(lat, BigDecimal.ZERO)
             && lon.scale() >= 6 && lat.scale() >= 6;
     }