diff --git a/src/i2c_communication.cpp b/src/i2c_communication.cpp
index 31dbb3a..88ea845 100644
--- a/src/i2c_communication.cpp
+++ b/src/i2c_communication.cpp
@@ -59,11 +59,12 @@ void onReceiveEvent(int bytes) {
 }
 
 // 更新传感器状态和数据
+unsigned long last_gps_data_time = 0;
 static uint8_t last_receive_cnt = 0;
 void update_sensor_data() {
     //gps
     //if (millis() > 5000 && gps.charsProcessed() < 10 && digitalRead(GPS_POWER_PIN) == HIGH) 
-    if (millis() > 5000 && gps.charsProcessed() < 10) {
+    if (gps.charsProcessed() < 10) {
         sensor_data.gps_sta = 0x00; // 无设备
         sensor_data.gps_lat = 0.0f;
         sensor_data.gps_lon = 0.0f;