diff --git a/applications/user_sys.c b/applications/user_sys.c
index 7deb5db..97dbd2a 100644
--- a/applications/user_sys.c
+++ b/applications/user_sys.c
@@ -240,9 +240,9 @@ rt_uint32_t IMEI_Delay(void)
     char randon_char[6] = {0}; // 调整数组大小为6
     rt_uint32_t random_number = 0;
 
-    Get_IotImei(imei_str, FLASH_NB_IMEI_LEN);
+    Get_IotImei(imei_str, FLASH_IOT_IMEI_LEN);
     // 提取 IMEI 的最后 5 位作为种子
-    rt_strncpy(randon_char, &imei_str[FLASH_NB_IMEI_LEN - 5], 5);
+    rt_strncpy(randon_char, &imei_str[FLASH_IOT_IMEI_LEN - 5], 5);
     random_number = atoi(randon_char);
     // 生成随机数
     rt_uint32_t  imei_delay = (random_number  + Get_RandomNumber()) % K;
diff --git a/bsp/inc/bsp_flash.h b/bsp/inc/bsp_flash.h
index 4281866..34963f3 100644
--- a/bsp/inc/bsp_flash.h
+++ b/bsp/inc/bsp_flash.h
@@ -86,16 +86,16 @@
 #define FLASH_TEMP_ALARM_THRESHOLD_LEN  (1)
 
 // 上传周期
-#define FLASH_NB_UPLOAD_CYCLE_ADDR (FLASH_TEMP_ALARM_THRESHOLD_ADDR + FLASH_TEMP_ALARM_THRESHOLD_LEN)
-#define FLASH_NB_UPLOAD_CYCLE_LEN  (2)
+#define FLASH_IOT_UPLOAD_CYCLE_ADDR (FLASH_TEMP_ALARM_THRESHOLD_ADDR + FLASH_TEMP_ALARM_THRESHOLD_LEN)
+#define FLASH_IOT_UPLOAD_CYCLE_LEN  (2)
 
 // 重试次数
-#define FLASH_NB_RETRY_ADDR (FLASH_NB_UPLOAD_CYCLE_ADDR + FLASH_NB_UPLOAD_CYCLE_LEN)
-#define FLASH_NB_RETRY_LEN  (1)
+#define FLASH_IOT_RETRY_ADDR (FLASH_IOT_UPLOAD_CYCLE_ADDR + FLASH_IOT_UPLOAD_CYCLE_LEN)
+#define FLASH_IOT_RETRY_LEN  (1)
 
 
 /*电磁阀功能开启*/
-#define FLASH_EMAGNETIC_SWITCH_ADDR (FLASH_NB_RETRY_ADDR + FLASH_NB_RETRY_LEN)
+#define FLASH_EMAGNETIC_SWITCH_ADDR (FLASH_IOT_RETRY_ADDR + FLASH_IOT_RETRY_LEN)
 #define FLASH_EMAGNETIC_SWITCH_LEN  (1)
 
 /*继电器功能开启*/
@@ -103,19 +103,19 @@
 #define FLASH_RELAY_SWITCH_LEN          (1)
 
 //imei
-#define FLASH_NB_IMEI_ADDR (FLASH_RELAY_SWITCH_ADDR + FLASH_RELAY_SWITCH_LEN)
-#define FLASH_NB_IMEI_LEN  (15)
+#define FLASH_IOT_IMEI_ADDR (FLASH_RELAY_SWITCH_ADDR + FLASH_RELAY_SWITCH_LEN)
+#define FLASH_IOT_IMEI_LEN  (15)
 
 // imsi
-#define FLASH_NB_IMSI_ADDR (FLASH_NB_IMEI_ADDR + FLASH_NB_IMEI_LEN)
-#define FLASH_NB_IMSI_LEN  (15)
+#define FLASH_IOT_IMSI_ADDR (FLASH_IOT_IMEI_ADDR + FLASH_IOT_IMEI_LEN)
+#define FLASH_IOT_IMSI_LEN  (15)
 
 // iccid
-#define FLASH_NB_ICCID_ADDR (FLASH_NB_IMSI_ADDR + FLASH_NB_IMSI_LEN)
-#define FLASH_NB_ICCID_LEN  (20)
+#define FLASH_IOT_ICCID_ADDR (FLASH_IOT_IMSI_ADDR + FLASH_IOT_IMSI_LEN)
+#define FLASH_IOT_ICCID_LEN  (20)
 
 /*工作时长记录*/
-#define FLASH_WORK_TIME_ADDR (FLASH_NB_ICCID_ADDR + FLASH_NB_ICCID_LEN)
+#define FLASH_WORK_TIME_ADDR (FLASH_IOT_ICCID_ADDR + FLASH_IOT_ICCID_LEN)
 #define FLASH_WORK_TIME_LEN  (2)//单位：天
 
 /*正式平台服务器地址*/
@@ -239,7 +239,7 @@ typedef struct __attribute__((packed))
     rt_uint8_t alarm_l_value;    // 报警低阈值
     rt_uint8_t alarm_h_value;    // 报警高阈值
     rt_uint8_t temp_alarm_threshold;//温度报警阈值
-    rt_uint16_t iot_upload_cycle; // NB上传周期
+    rt_uint16_t iot_upload_cycle; //IOT上传周期
     rt_uint8_t iot_retry;         // 重试次数
     rt_uint8_t emagnetic_switch;
     rt_uint8_t relay_switch;
diff --git a/bsp/src/at_device_nt26k.c b/bsp/src/at_device_nt26k.c
index 4853c2e..de1e058 100644
--- a/bsp/src/at_device_nt26k.c
+++ b/bsp/src/at_device_nt26k.c
@@ -864,7 +864,7 @@ static void nt26k_init_thread_entry (void *parameter)
         }
 
         /* set network interface device hardware address(IMEI) */
-        if ((*(rt_uint16_t *)FLASH_NB_IMEI_ADDR == 0xE339) || (*(rt_uint16_t *)FLASH_NB_IMEI_ADDR == 0x39E3))  // 未写入
+        if ((*(rt_uint16_t *)FLASH_IOT_IMEI_ADDR == 0xE339) || (*(rt_uint16_t *)FLASH_IOT_IMEI_ADDR == 0x39E3))  // 未写入
         {
 #define NT26K_NETDEV_HWADDR_LEN 8
 #define NT26K_IMEI_LEN 15
@@ -890,7 +890,7 @@ static void nt26k_init_thread_entry (void *parameter)
         }
         rt_thread_mdelay (1);
         /* set network interface device hardware iccid  */
-        if ((*(rt_uint16_t *)FLASH_NB_ICCID_ADDR == 0xE339) || (*(rt_uint16_t *)FLASH_NB_ICCID_ADDR == 0x39E3))  // 未写入
+        if ((*(rt_uint16_t *)FLASH_IOT_ICCID_ADDR == 0xE339) || (*(rt_uint16_t *)FLASH_IOT_ICCID_ADDR == 0x39E3))  // 未写入
         {
 
 #define NT26K_ICCID_LEN 20
@@ -917,7 +917,7 @@ static void nt26k_init_thread_entry (void *parameter)
         }
         rt_thread_mdelay (1);
         /* set network interface device hardware imsi  */
-        if ((*(rt_uint16_t *)FLASH_NB_IMSI_ADDR == 0xE339) || (*(rt_uint16_t *)FLASH_NB_IMSI_ADDR == 0x39E3))  // 未写入
+        if ((*(rt_uint16_t *)FLASH_IOT_IMSI_ADDR == 0xE339) || (*(rt_uint16_t *)FLASH_IOT_IMSI_ADDR == 0x39E3))  // 未写入
         {
 
 #define NT26K_IMSI_LEN 15
diff --git a/bsp/src/bsp_flash.c b/bsp/src/bsp_flash.c
index ce2e9b8..1585545 100644
--- a/bsp/src/bsp_flash.c
+++ b/bsp/src/bsp_flash.c
@@ -52,14 +52,14 @@ const rt_uint32_t hr_sys_cfg_info_addr[kCnt] = {
     FLASH_SW_VER_ADDR,
     FLASH_ALARM_L_VALUE_ADDR,
     FLASH_ALARM_H_VALUE_ADDR,
-    FLASH_NB_UPLOAD_CYCLE_ADDR,
-    FLASH_NB_RETRY_ADDR,
+    FLASH_IOT_UPLOAD_CYCLE_ADDR,
+    FLASH_IOT_RETRY_ADDR,
     FLASH_TEMP_ALARM_THRESHOLD_ADDR,
     FLASH_EMAGNETIC_SWITCH_ADDR,
     FLASH_RELAY_SWITCH_ADDR,
-    FLASH_NB_IMEI_ADDR,
-    FLASH_NB_IMSI_ADDR,
-    FLASH_NB_ICCID_ADDR,
+    FLASH_IOT_IMEI_ADDR,
+    FLASH_IOT_IMSI_ADDR,
+    FLASH_IOT_ICCID_ADDR,
 };
 
 const rt_uint32_t hr_sys_cfg_info_len[kCnt] = {
@@ -67,14 +67,14 @@ const rt_uint32_t hr_sys_cfg_info_len[kCnt] = {
     FLASH_SW_VER_LEN,
     FLASH_ALARM_L_VALUE_LEN,
     FLASH_ALARM_H_VALUE_LEN,
-    FLASH_NB_UPLOAD_CYCLE_LEN,
-    FLASH_NB_RETRY_LEN,
+    FLASH_IOT_UPLOAD_CYCLE_LEN,
+    FLASH_IOT_RETRY_LEN,
     FLASH_TEMP_ALARM_THRESHOLD_LEN,
     FLASH_EMAGNETIC_SWITCH_LEN,
     FLASH_RELAY_SWITCH_LEN,
-    FLASH_NB_IMEI_LEN,
-    FLASH_NB_IMSI_LEN,
-    FLASH_NB_ICCID_LEN,
+    FLASH_IOT_IMEI_LEN,
+    FLASH_IOT_IMSI_LEN,
+    FLASH_IOT_ICCID_LEN,
 };
 
 static rt_base_t interrupt_value;
@@ -140,11 +140,11 @@ static rt_size_t Flash_Read (rt_uint32_t addr, rt_uint8_t *buf, rt_size_t len)
 
 int Get_IotImei (char *buf, rt_size_t len)
 {
-    if ((*(rt_uint8_t *)FLASH_NB_IMEI_ADDR != 0xE3) && (*(rt_uint8_t *)FLASH_NB_IMEI_ADDR != 0x39))
+    if ((*(rt_uint8_t *)FLASH_IOT_IMEI_ADDR != 0xE3) && (*(rt_uint8_t *)FLASH_IOT_IMEI_ADDR != 0x39))
     {
-        rt_memcpy (buf, (char *)FLASH_NB_IMEI_ADDR, len);
+        rt_memcpy (buf, (char *)FLASH_IOT_IMEI_ADDR, len);
 
-        LOG_D ("NB IMEI: %s", buf);
+        LOG_D ("IOT IMEI: %s", buf);
         return 0;
     }
     else
@@ -154,18 +154,18 @@ int Get_IotImei (char *buf, rt_size_t len)
         {
             buf[i] = '0';
         }
-        LOG_D ("NB IMSI: %s", buf);
+        LOG_D ("IOT IMSI: %s", buf);
         return -1;
     }
 }
 
 int Get_IotImsi (char *buf, rt_size_t len)
 {
-    if ((*(rt_uint8_t *)FLASH_NB_IMSI_ADDR != 0xE3) && (*(rt_uint8_t *)FLASH_NB_IMSI_ADDR != 0x39))
+    if ((*(rt_uint8_t *)FLASH_IOT_IMSI_ADDR != 0xE3) && (*(rt_uint8_t *)FLASH_IOT_IMSI_ADDR != 0x39))
     {
-        rt_memcpy (buf, (char *)FLASH_NB_IMSI_ADDR, len);
+        rt_memcpy (buf, (char *)FLASH_IOT_IMSI_ADDR, len);
 
-        LOG_D ("NB IMSI: %s", buf);
+        LOG_D ("IOT IMSI: %s", buf);
         return 0;
     }
     else
@@ -175,18 +175,18 @@ int Get_IotImsi (char *buf, rt_size_t len)
         {
             buf[i] = '0';
         }
-        LOG_D ("NB IMSI: %s", buf);
+        LOG_D ("IOT IMSI: %s", buf);
         return -1;
     }
 }
 
 int Get_IotIccid (char *buf, rt_size_t len)
 {
-    if ((*(rt_uint8_t *)FLASH_NB_ICCID_ADDR != 0xE3) && (*(rt_uint8_t *)FLASH_NB_ICCID_ADDR != 0x39))
+    if ((*(rt_uint8_t *)FLASH_IOT_ICCID_ADDR != 0xE3) && (*(rt_uint8_t *)FLASH_IOT_ICCID_ADDR != 0x39))
     {
-        rt_memcpy (buf, (char *)FLASH_NB_ICCID_ADDR, len);
+        rt_memcpy (buf, (char *)FLASH_IOT_ICCID_ADDR, len);
 
-        LOG_D ("NB ICCID: %s", buf);
+        LOG_D ("IOT ICCID: %s", buf);
         return 0;
     }
     else
@@ -196,7 +196,7 @@ int Get_IotIccid (char *buf, rt_size_t len)
         {
             buf[i] = '0';
         }
-        LOG_D ("NB ICCID: %s", buf);
+        LOG_D ("IOT ICCID: %s", buf);
         return -1;
     }
 }
diff --git a/bsp/src/bsp_hr.c b/bsp/src/bsp_hr.c
index 742b2d1..c8f14e7 100644
--- a/bsp/src/bsp_hr.c
+++ b/bsp/src/bsp_hr.c
@@ -449,9 +449,9 @@ int Process_Factor_Cmd(rt_uint8_t cmd)
             }
             rt_uint32_t cnt = (rt_uint32_t)((time_buf[2] << 16) | (time_buf[1] << 8) | time_buf[0]);
 
-            Get_IotImei(imei, FLASH_NB_IMEI_LEN);
-            Get_IotImsi(imsi, FLASH_NB_IMSI_LEN);
-            Get_IotIccid(iccid, FLASH_NB_ICCID_LEN);
+            Get_IotImei(imei, FLASH_IOT_IMEI_LEN);
+            Get_IotImsi(imsi, FLASH_IOT_IMSI_LEN);
+            Get_IotIccid(iccid, FLASH_IOT_ICCID_LEN);
             rt_sprintf(buf,
                        "\r\n[ID   :YD4N02/%02d%02d%02d%04d]\r\n"
                        "[IMEI:%s]\r\n"
diff --git a/bsp/src/bsp_nt26k.c b/bsp/src/bsp_nt26k.c
index cf2129c..7824413 100644
--- a/bsp/src/bsp_nt26k.c
+++ b/bsp/src/bsp_nt26k.c
@@ -877,7 +877,7 @@ void Handle_Self_Check (struct Nt26k_Ops *ops)
 {
     LOG_D ("服务器下发自检指令\n");
     char imei[16] = {0};
-    Get_IotImei (imei, FLASH_NB_IMEI_LEN);
+    Get_IotImei (imei, FLASH_IOT_IMEI_LEN);
     LOG_D ("imei:%s\n", imei);
 
     char temp[32] = "0";
@@ -893,7 +893,7 @@ void Handle_Mute (struct Nt26k_Ops *ops)
     LOG_D ("服务器下发消音指令\n");
 
     char imei[16] = {0};
-    Get_IotImei (imei, FLASH_NB_IMEI_LEN);
+    Get_IotImei (imei, FLASH_IOT_IMEI_LEN);
     char temp[32] = "0";
     String2Hex (temp, imei);  // 将字符串转为十六进制字符串
 
@@ -907,7 +907,7 @@ void Handle_Close_Valve (struct Nt26k_Ops *ops)
     LOG_D ("服务器下发关闭阀门指令\n");
 
     char imei[16] = {0};
-    Get_IotImei (imei, FLASH_NB_IMEI_LEN);
+    Get_IotImei (imei, FLASH_IOT_IMEI_LEN);
     char temp[32] = "0";
     String2Hex (temp, imei);  // 将字符串转为十六进制字符串
     EMV_CLOSE_VALVE;
@@ -919,7 +919,7 @@ void Handle_Open_Valve (struct Nt26k_Ops *ops)
     LOG_D ("服务器下发打开阀门指令\n");
 
     // char imei[16] = {0};
-    // Get_IotImei(imei, FLASH_NB_IMEI_LEN);
+    // Get_IotImei(imei, FLASH_IOT_IMEI_LEN);
     // char temp[32] = "0";
     // String2Hex(temp, imei); // 将字符串转为十六进制字符串
 
@@ -936,7 +936,7 @@ void Handle_Open_Relay (struct Nt26k_Ops *ops)
     LOG_D ("服务器下发打开继电器指令\n");
 
     char imei[16] = {0};
-    Get_IotImei (imei, FLASH_NB_IMEI_LEN);
+    Get_IotImei (imei, FLASH_IOT_IMEI_LEN);
     char temp[32] = "0";
     String2Hex (temp, imei);  // 将字符串转为十六进制字符串
     relay_state_flag = 1;
@@ -952,7 +952,7 @@ void Handle_Close_Relay (struct Nt26k_Ops *ops)
     char imei[16] = {0};
     char temp[32] = "0";
 
-    Get_IotImei (imei, FLASH_NB_IMEI_LEN);
+    Get_IotImei (imei, FLASH_IOT_IMEI_LEN);
     String2Hex (temp, imei);  // 将字符串转为十六进制字符串
 
     relay_state_flag = 0;
@@ -986,7 +986,7 @@ int Handle_Config_Params (struct Nt26k_Ops *ops)
 
     LOG_D ("服务器下发配置参数\n");
 
-    Get_IotImei (imei, FLASH_NB_IMEI_LEN);
+    Get_IotImei (imei, FLASH_IOT_IMEI_LEN);
     String2Hex (temp, imei);  // 将字符串转为十六进制字符串
 
     rt_memset (data_buf, '0', 32);
@@ -1061,7 +1061,7 @@ void Handle_Time_Calibration_Data (struct Nt26k_Ops *ops)
 
     LOG_D ("时间校准数据\n");
 
-    Get_IotImei (imei, FLASH_NB_IMEI_LEN);
+    Get_IotImei (imei, FLASH_IOT_IMEI_LEN);
     String2Hex (temp, imei);  // 将字符串转为十六进制字符串
 
     rt_memcpy (data, ops->recv->recv_data.res_data, sizeof (data));
@@ -1084,7 +1084,7 @@ void Handle_Sever_Addr_Set (struct Nt26k_Ops *ops)
     char imei[16] = {0};
     char temp[32] = "0";
 
-    Get_IotImei (imei, FLASH_NB_IMEI_LEN);
+    Get_IotImei (imei, FLASH_IOT_IMEI_LEN);
     String2Hex (temp, imei);  // 将字符串转为十六进制字符串
     rt_memcpy (data, (ops->recv->recv_data.res_data + 9), FLASH_SERVER_LEN);
     LOG_D ("data[%d] = %x data[%d] = %x data[%d] = %x data[%d] = %x data[%d] = %x data[%d] = %x", 0, data[0], 1, data[1], 2, data[2], 3, data[3], 4, data[4], 5, data[5]);
@@ -1107,7 +1107,7 @@ void Handle_Error (struct Nt26k_Ops *ops, rt_err_t ret)
     char imei[16] = {0};
     char temp[32] = "0";
 
-    Get_IotImei (imei, FLASH_NB_IMEI_LEN);
+    Get_IotImei (imei, FLASH_IOT_IMEI_LEN);
     String2Hex (temp, imei);  // 将字符串转为十六进制字符串
     ops->Resp (ops, DATA_SERIAL_NUM, CMD_TYPE_INSTRUCTION_REPLY, DEVICE_TYPE_NT26K, ops->recv->cmd, temp, RESPONSE_CODE_PARSE_FAIL);
 }
diff --git a/doc/README.md b/doc/README.md
index 59a2c7b..47bc427 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -5,7 +5,7 @@
 
 # 引脚占用
 
-## NB通讯
+## IOT通讯
 
 | 引脚  | 占用        | 占用方式            |
 | ----- | ----------- | ------------------- |
diff --git a/rt-thread/rtconfig.h b/rt-thread/rtconfig.h
index 5ac1c4f..0146df1 100644
--- a/rt-thread/rtconfig.h
+++ b/rt-thread/rtconfig.h
@@ -19,7 +19,7 @@
 #define ENABLE_LOG_ALL
 #define TEST_ENABLE  //打开所有的终端测试程序
 #define ULOG_OUTPUT_LVL 7  // 生产时将其设为0
- #define IOT_MODULE_SWITCH  1 //开启NB物联网功能
+ #define IOT_MODULE_SWITCH  1 //开启物联网功能
 
  /* RT-Thread Kernel */