diff --git a/scheduler/schedule.cpp b/scheduler/schedule.cpp
index 3199502..bbc99d0 100644
--- a/scheduler/schedule.cpp
+++ b/scheduler/schedule.cpp
@@ -909,7 +909,7 @@ int SensorScheduler::WriteScheduleCfg(long &ts, std::string &world_time) {
     return 0;
 }
 
-int SensorScheduler::Config(int eigen_value_send_interval, int wave_form_send_interval, int max_sensor_num, 
+int SensorScheduler::Config(int eigen_value_send_interval, int wave_form_send_interval, int &max_sensor_num, 
                             int wave_resend_num, std::string &error_msg) {
     int available_slice = 0;
     int free_slice = 0;
@@ -952,13 +952,13 @@ int SensorScheduler::Config(int eigen_value_send_interval, int wave_form_send_in
 // 特征值发送间隔300秒，波形发送间隔为7200秒
 // 一次特征值发送时长为2秒，波形发送时长为60秒，所有特征值在特征值发送间隔的第1分钟中的第3秒至第57秒全部完成
 int SensorScheduler::CalcAvailableSlice(int eigen_value_send_interval, int wave_form_send_interval,                                        
-                                        int max_sensor_num, int &available_slice, int &free_slice,
+                                        int &max_sensor_num, int &available_slice, int &free_slice,
                                         std::string &error_msg) {
-    if (max_sensor_num <= 0) {
-        error_msg = "max_sensor_num:" + std::to_string(max_sensor_num) + " must bigger than 0";
-        zlog_error(zbt, "%s", error_msg.c_str());
-        return 1;
-    }
+    // if (max_sensor_num <= 0) {
+    //     error_msg = "max_sensor_num:" + std::to_string(max_sensor_num) + " must bigger than 0";
+    //     zlog_error(zbt, "%s", error_msg.c_str());
+    //     return 1;
+    // }
 
     if (2 > eigen_value_send_interval) {
         error_msg = "invalid max_sensor_num:" + std::to_string(max_sensor_num) + 
@@ -967,12 +967,12 @@ int SensorScheduler::CalcAvailableSlice(int eigen_value_send_interval, int wave_
         return 2;
     }
 
-    if (max_sensor_num * 60 * 2 > wave_form_send_interval) { // xy, z分开发送
-        error_msg = "invalid wave_form_send_duration:" + std::to_string(60) + 
-                    "* 2 * max_sensor_num:" + std::to_string(max_sensor_num) + " > wave_form_send_interval:" + std::to_string(wave_form_send_interval);        
-        zlog_error(zbt, "%s", error_msg.c_str());
-        return 3;
-    }
+    // if (max_sensor_num * 60 * 2 > wave_form_send_interval) { // xy, z分开发送
+    //     error_msg = "invalid wave_form_send_duration:" + std::to_string(60) + 
+    //                 "* 2 * max_sensor_num:" + std::to_string(max_sensor_num) + " > wave_form_send_interval:" + std::to_string(wave_form_send_interval);        
+    //     zlog_error(zbt, "%s", error_msg.c_str());
+    //     return 3;
+    // }
 
     if (wave_form_send_interval % eigen_value_send_interval != 0) {
         error_msg = "wave_form_send_interval:" + std::to_string(wave_form_send_interval) + " %% eigen_value_send_interval:" + std::to_string(eigen_value_send_interval) +
@@ -985,9 +985,15 @@ int SensorScheduler::CalcAvailableSlice(int eigen_value_send_interval, int wave_
     int rest_duration = eigen_value_send_interval - total_eigen_value_send_duration;
     int slice_per_eigen_value_interval = rest_duration / 60;
     available_slice = wave_form_send_interval / eigen_value_send_interval * slice_per_eigen_value_interval;
-    free_slice = available_slice - max_sensor_num * 2;    
-    if (free_slice < 0) {
-        error_msg = "invalid config, available slice:" + std::to_string(available_slice) + ", required slice:" + std::to_string(max_sensor_num);
+    // free_slice = available_slice - max_sensor_num * 2; 
+    max_sensor_num =  available_slice / 2;
+    // if (free_slice < 0) {
+    //     error_msg = "invalid config, available slice:" + std::to_string(available_slice) + ", required slice:" + std::to_string(max_sensor_num*2);
+    //     zlog_error(zbt, "%s", error_msg.c_str());
+    //     return 5;
+    // }
+    if (available_slice <= 0) {
+        error_msg = "invalid config, available slice:" + std::to_string(available_slice) + ", required slice:" + std::to_string(max_sensor_num*2);
         zlog_error(zbt, "%s", error_msg.c_str());
         return 5;
     }
diff --git a/scheduler/schedule.hpp b/scheduler/schedule.hpp
index e38792b..f1280c2 100644
--- a/scheduler/schedule.hpp
+++ b/scheduler/schedule.hpp
@@ -76,10 +76,10 @@ public:
     int UpdateConfigResult(uint16_t short_addr, int result);
 
     int Config(int eigen_value_send_interval, int wave_form_send_interval,               
-               int max_sensor_num, int wave_resend_num, std::string &error_msg);
+               int &max_sensor_num, int wave_resend_num, std::string &error_msg);
 
     int CalcAvailableSlice(int eigen_value_send_interval, int wave_form_send_interval,                           
-                           int max_sensor_num, int &available_slice, int &free_slice,
+                           int &max_sensor_num, int &available_slice, int &free_slice,
                            std::string &error_msg);
     
     int GetScheduleConfig(int &eigen_value_send_interval, int &wave_form_send_interval, int &wave_resend_num,