diff --git a/uart/uart_feature_parse.cpp b/uart/uart_feature_parse.cpp
index 316c3b4..9061577 100644
--- a/uart/uart_feature_parse.cpp
+++ b/uart/uart_feature_parse.cpp
@@ -30,7 +30,7 @@ unsigned char data[96000] = {0x00};
 unsigned char outdata[96000] = {0x00};
 unsigned char dealdata[96000] = {0x00};
 char  mqttData[1024000] = {0};
-char  mqttData_vel[10240] = {0};
+char  mqttData_vel[102400] = {0};
 
 void Uart::RecordBattery(std::string &strLongAddr, DataRecvStatic &dataStatic, std::string &nowTimetamp) {
     char insertSql[1024] = {0};