bug修复

zd-modules/zd-netty/src/main/java/com/zd/netty/sdk/WuYuanRFIDService.java

@@ -115,6 +115,11 @@ public class WuYuanRFIDService implements IService {
         readerMap.remove(ipAddress);
     }
 
+    @Override
+    public void alarm(RemoteLabHardware hardware) {
+        // TODO document why this method is empty
+    }
+
     public Boolean deviceStatus(RemoteLabHardware hardware) {
         Reader reader = null;
         String ipAddress = hardware.getIpAddress();