diff --git a/app/lib/a_process/ca_mqtt.c b/app/lib/a_process/ca_mqtt.c
index 3ac12c3..ac1bb8a 100755
--- a/app/lib/a_process/ca_mqtt.c
+++ b/app/lib/a_process/ca_mqtt.c
@@ -41,7 +41,9 @@
 /* Private variables ---------------------------------------------------------*/
 //mqtt_ctrl_t mqtt_ctrl;
 int mqtt_reconn_times = 0;
-
+int mqtt_login = 0;
+extern int network_4g_link_ok;
+extern int cau_collect_flag;
 /* Private function prototypes -----------------------------------------------*/
 
 /* Interface functions -------------------------------------------------------*/
@@ -98,6 +100,7 @@ void _mqtt_iota_connect_success(void* context, int messageId, int code, char* me
     LOG("messageId:%d", messageId);
     LOG("code:%d", code);
     LOG("message:%s", message);
+    mqtt_login = 1;
 }
 
 void _mqtt_iota_connect_failure(void* context, int messageId, int code, char* message)
@@ -106,6 +109,7 @@ void _mqtt_iota_connect_failure(void* context, int messageId, int code, char* me
     LOG("messageId:%d", messageId);
     LOG("code:%d", code);
     LOG("message:%s", message);
+    mqtt_login = 0;
 }
 
 void _mqtt_iota_connection_lost(void* context, int messageId, int code, char* message)
@@ -114,6 +118,7 @@ void _mqtt_iota_connection_lost(void* context, int messageId, int code, char* me
     LOG("messageId:%d", messageId);
     LOG("code:%d", code);
     LOG("message:%s", message);
+    mqtt_login = 0;
 }
 
 void _mqtt_iota_disconnect_success(void* context, int messageId, int code, char* message)
@@ -366,7 +371,7 @@ void _mqtt_heartbeat_upload(void)
     LOG("messageId=%d", messageId);
     free(out);
     cJSON_Delete(pJsRoot);
-    printh("上传心跳\r\n");
+    //printh("上传心跳\r\n");
 }
 
 void _mqtt_current_data_upload(void)
@@ -396,34 +401,60 @@ void _mqtt_current_data_report(void)
     char nowtime[255] = {0};
     int messageId;
     F32 cauValues[11] = {0};
-    cJSON *pJsRoot = cJSON_CreateObject();
+    //cJSON *pJsRoot = cJSON_CreateObject();
     cJSON *pJson = cJSON_CreateObject();
     mqtt_param_t *param = &pparam_config->mqttCfg;
     _dbg_get_current_cau_values(cauValues);
+    for (int i = 0; i < 11; i++)
+    {
+        LOG("cauValues[%d] = %f", i, cauValues[i]);
+    }
     
     struct tm *tm_now;
     time_t now = time(NULL);
     tm_now = localtime(&now);
     sprintf(nowtime,"%d-%02d-%02d %02d:%02d:%02d",tm_now->tm_year+1900,
     tm_now->tm_mon+1, tm_now->tm_mday,tm_now->tm_hour,tm_now->tm_min,tm_now->tm_sec);
-    LOG("数据填充时间:%s\r\n",nowtime);
+    //LOG("数据填充时间:%s\r\n",nowtime);
     cJSON_AddStringToObject(pJson,"date",nowtime);
-    cJSON_AddNumberToObject(pJson,"rmsCh",cauValues[3]);
-    cJSON_AddNumberToObject(pJson,"rmsIb",cauValues[1]);
-    cJSON_AddNumberToObject(pJson,"runIc",cauValues[7]);
     cJSON_AddNumberToObject(pJson,"rmsIa",cauValues[0]);
-    cJSON_AddNumberToObject(pJson,"runIb",cauValues[6]);
+    cJSON_AddNumberToObject(pJson,"rmsIb",cauValues[1]);
     cJSON_AddNumberToObject(pJson,"rmsIc",cauValues[2]);
+    cJSON_AddNumberToObject(pJson,"rmsCh",cauValues[4]);
     cJSON_AddNumberToObject(pJson,"runIa",cauValues[5]);
-    cJSON_AddItemToObject(pJsRoot,"",pJson);
+    cJSON_AddNumberToObject(pJson,"runIb",cauValues[6]);
+    cJSON_AddNumberToObject(pJson,"runIc",cauValues[7]);
+    //cJSON_AddItemToObject(pJsRoot,"data",pJson);
     char *out = cJSON_PrintUnformatted(pJson);
-    messageId = IOTA_ServiceDataReport((char *)param->device_id,CSG_SERVICE_ID_DEFAULT,out);
-    LOG("messageId = %d pub string: %s\r\n",messageId, out);
+    messageId = IOTA_ServiceDataReport((char *)param->client_id,CSG_SERVICE_ID_DEFAULT,out);
+    //LOG("XXXmessageId = %d pub string: %s\r\n",messageId, out);
+    DBG(DBG_M_CA_MQTT, "messageId = %d pub string: %s\r\n",messageId, out);
     //messageId = IOTA_ServiceDataReport(strDeviceId, "currentData", "{\"date\":\"2022-07-29 13:45:57\",\"rmsCh\":0.02,\"rmsIb\":0.01,\"runIc\":0.02,\"rmsIa\":0.01,\"runIb\":0.02,\"rmsIc\":0.02,\"runIa\":0.02}");
     free(out);
-    cJSON_Delete(pJsRoot);
+    //cJSON_Delete(pJsRoot);
+    cJSON_Delete(pJson);
 }
 
+int _mqtt_connect()
+{
+    int ret;
+    IOTA_SetPrintLogCallback(_mqtt_iota_log_print);
+
+    ret = IOTA_Init(".", ".");
+    if (ret > 0)
+    {
+        LOG("IOTA_Init failed,retval=%d", ret);
+        return NULL;
+    }
+
+    _mqtt_iota_confing_set();
+    
+    _mqtt_iota_callback_set();
+
+    ret = IOTA_Login();
+    LOG("IOTA_Login, retval=%d", ret);
+    return 0;
+}
 
 /* description: mqtt管理线程.
    param:
@@ -434,6 +465,15 @@ void *_mqtt_manage_thread(void *args)
     int ret;
     time_t cur_time, report_time, heartbeat_time;
     int diff_time;
+
+#if 0
+    while (!network_4g_link_ok)
+    {
+        LOG("sleep here...\n");
+        sleep(1);
+    }
+    LOG("4G link ok\n");
+#endif
     
     IOTA_SetPrintLogCallback(_mqtt_iota_log_print);
 
@@ -450,6 +490,7 @@ void *_mqtt_manage_thread(void *args)
 
     ret = IOTA_Login();
     LOG("IOTA_Login, retval=%d", ret);
+    sleep(1);
 
     time(&cur_time);
     report_time = cur_time;
@@ -462,20 +503,45 @@ void *_mqtt_manage_thread(void *args)
             DBG(DBG_M_CA_MQTT_ERR, "CommunicationMode %d", pparam_config->gateway.CommunicationMode);
             continue;
         }
+
+        if (mqtt_login == 0)
+        {
+            if (network_4g_link_ok)
+            {
+                int ret = IOTA_Login();
+                if (ret != 0) 
+                {
+                    LOG("error, login again failed, result %d\n", ret);
+                }
+                mqtt_reconn_times++;
+                LOG("IOTA_Login ret=%d mqtt_reconn_times=%d", ret, mqtt_reconn_times);
+            }
+            sleep(1);
+            continue;
+        }
+        mqtt_reconn_times = 0;
+        
         time(&cur_time);
         diff_time = CPUMS_DIFF(report_time, cur_time);
-        if (diff_time >= 60)
+        //if (diff_time >= 60)
+        if (cau_collect_flag)
         {
-            report_time = cur_time;
-            _mqtt_current_data_upload();
+            cau_collect_flag = 0;
+            //report_time = cur_time;
+            //_mqtt_current_data_upload();
+            _mqtt_current_data_report();
         }
-        diff_time = CPUMS_DIFF(report_time, heartbeat_time);
-        if (diff_time >= 60)
+
+#if 0
+        diff_time = CPUMS_DIFF(heartbeat_time, cur_time);
+        //LOG("keep_live_time=%d diff_time=%d\n", pparam_config->mqttCfg.keep_live_time, diff_time);
+        if (diff_time >= pparam_config->mqttCfg.keep_live_time)
         {
             heartbeat_time = cur_time;
             _mqtt_heartbeat_upload();
         }
-        sleep(1);
+#endif
+        usleep(100*1000);
     }
 }
 
diff --git a/app/lib/a_process/ca_network.c b/app/lib/a_process/ca_network.c
index 2b9ca6a..29b1e88 100755
--- a/app/lib/a_process/ca_network.c
+++ b/app/lib/a_process/ca_network.c
@@ -28,6 +28,7 @@
 #include "common.h"
 extern int csg_reconn_times;
 extern int mqtt_reconn_times;
+int network_4g_link_ok = 0;
 
 /* Private define ------------------------------------------------------------*/
 int _network_chat(int fd, const char *at, const char *expect, int timeout, char **response, bool IsPrintf)
@@ -436,6 +437,7 @@ void *_network_manage_thread(void *args)
             reset_cnt = 0;
             if (_network_ppp_check_test() == 0)
             {
+                network_4g_link_ok = 0;
                 // not found ppp0
                 if (++ppp_not_found_cnt >= 6)
                 {
@@ -451,6 +453,7 @@ void *_network_manage_thread(void *args)
             }
             else
             {
+                network_4g_link_ok = 1;
                 // found ppp0
                 ppp_not_found_cnt = 0;
                 // The connection still fails in the presence of ppp0 and needs to be restarted
@@ -472,6 +475,7 @@ void *_network_manage_thread(void *args)
         }
         else
         {
+            network_4g_link_ok = 0;
             ppp_not_found_cnt = 0;
             LOG("%s is not exist!!!! reset_cnt = %d\n", DEV_NAME_4G_QUECTEL, reset_cnt);
             if (++reset_cnt >= 6)
diff --git a/app/lib/a_process/ca_param.c b/app/lib/a_process/ca_param.c
index cefc982..26c58a9 100755
--- a/app/lib/a_process/ca_param.c
+++ b/app/lib/a_process/ca_param.c
@@ -229,6 +229,11 @@ int _param_load_cau_cfg(cJSON *pCfgJsRoot)
         //printf("\n");
 #endif
     }
+
+    for (int a = 0; a < 8; a++)
+    {
+        LOG("[ch%d]chSwitch=%d", a, pparam_config->cauParam[a].chSwitch);
+    }
     return 0;
 }
 
diff --git a/build/Makefile b/build/Makefile
index e0a9f64..0d7e3a2 100755
--- a/build/Makefile
+++ b/build/Makefile
@@ -31,7 +31,7 @@ VERSION_FILE := $(SOURCE_DIR)/include/version.h
 MQTTLIB_DIR := $(SOURCE_DIR)/lib/l_library
 VERSION_LIB := version.a
 DATE_STRING := `date "+%Y.%m.%d %k:%M:%S"`
-VERSION_STRING := "6.2.1.14"
+VERSION_STRING := "6.2.1.15"
 
 MV := mv -f
 RM := rm -rf