提交一种稳定浓度标定方法，和报警恢复降低阈值措施

applications/main.c

@@ -2,8 +2,8 @@
  * @Author: mbw
  * @Date: 2024-10-23 17:14:16
  * @LastEditors: mbw && 1600520629@qq.com
- * @LastEditTime: 2025-06-01 08:35:48
+ * @LastEditTime: 2025-06-04 08:54:13
- * @FilePath: \1\ble_-tyq_-bjq_-ch32-v303\applications\main.c
+ * @FilePath: \ble_bjq_ch303rct6_ml307\applications\main.c
  * @Descrt_thread_
  *
  * Copyright (c) 2024 by ${git_name_email}, All Rights Reserved.
@@ -27,6 +27,8 @@
 #include "bsp_vin_detection.h"
 #include "user_sys.h"
 #include "bsp_bt.h"
+#include "math.h"
+
 
 #define LOG_TAG "main"
 #define LOG_LVL LOG_LVL_DBG
@@ -162,10 +164,40 @@ void Preheat_Timer_Callback (void *parameter)
     }
 }
 
+#define STABLE_THRESHOLD 0.01f // 1%波动视为稳定
+
+uint16_t Get_Stable_Reading(uint8_t cnt, uint32_t timeout_ms)
+{
+    uint32_t start = rt_tick_get();
+    uint16_t last  = Get_Gas_VoltageAdcInt1000x();
+    uint16_t current;
+    uint8_t stable_count = 0;
+
+    while ((rt_tick_get() - start) < timeout_ms)
+    {
+        current = Get_Gas_VoltageAdcInt1000x();
+
+        float diff = fabs((float)(current - last) / last);// 差值
+        if (diff < STABLE_THRESHOLD)
+        {
+            stable_count++;
+            if (stable_count >= cnt) return current; // 连续n次稳定
+        }
+        else
+        {
+            stable_count = 0;
+        }
+
+        last = current;
+        rt_thread_mdelay(200);
+    }
+
+    return 0; // 超时
+}
+
+/*标定函数*/
 int APP_Calibration_Handle(void)
 {
-    uint8_t i = 0;
-    uint16_t gas_buf[10] = {0};
     uint32_t gas_calibration_voltage = 0;
 
     // if (Get_Gas_VoltageAdcInt1000x() > 400 && Get_Gas_VoltageAdcInt1000x() < 900)
@@ -193,8 +225,11 @@ int APP_Calibration_Handle (void)
         return 0;
     }
     Calibration_flag = 1;
-    while (1)
+    uint8_t calibration_buf[2] = {0};
-    {
+/* 获取10个数据 */
+#if 0
+    uint8_t i                        = 0;
+    uint16_t gas_buf[10]             = {0};
     for (i = 0; i < 10; i++)
     {
         gas_buf[i] = Get_Gas_VoltageAdcInt1000x();
@@ -207,8 +242,8 @@ int APP_Calibration_Handle (void)
     }
          if (i == 10)
     {
-            gas_calibration_voltage = (uint16_t)gas_calibration_voltage / 10;
+        gas_calibration_voltage    = (uint16_t)(gas_calibration_voltage / 10);
-            uint8_t calibration_buf[2] = {0};
+       
         calibration_buf[0]         = gas_calibration_voltage & 0xFF;        // 低字节
         calibration_buf[1]         = (gas_calibration_voltage >> 8) & 0xFF; // 高字节
         LOG_D("calibration_buf[0] = %X calibration_buf[1] = %X", calibration_buf[0], calibration_buf[1]);
@@ -226,7 +261,31 @@ int APP_Calibration_Handle (void)
         LOG_E("标定错误");
         return -1;
     }
+#else
+    gas_calibration_voltage = Get_Stable_Reading(5, 10000);//10s内连续5次稳定，则认为其标定浓度稳定，进行标定
+    if(gas_calibration_voltage == 0)
+    {
+        LOG_D("标定超时，标定错误");
+        Send_Laser_Alarm_Event(kNotCalibratedEvent);
+        return  -1;
     }
+    else
+    {
+        calibration_buf[0]         = gas_calibration_voltage & 0xFF;        // 低字节
+        calibration_buf[1]         = (gas_calibration_voltage >> 8) & 0xFF; // 高字节
+        LOG_D("calibration_buf[0] = %X calibration_buf[1] = %X", calibration_buf[0], calibration_buf[1]);
+        Flash_Sys_Cfg(kAlarmLValueId, calibration_buf, 2);
+        LOG_D("标定完成");
+        Calibration_flag = 0;
+        Flash_Set_Calibration_State(kSysGasCalibStatus);
+        g_Calibration_status = kSysGasCalibStatus;
+        Send_Laser_Alarm_Event(kNormalDetectionEvents);
+        return 0;
+    }
+
+#endif
+
+   
 }
 
 int main(void)
@@ -253,7 +312,6 @@ int main (void)
     }
     BSP_VIN_Detection_Init();
 
-
     rt_err_t result = RT_EINVAL;
     rt_uint32_t received_event;
 

bsp/src/bsp_mq.c

@@ -2,7 +2,7 @@
  * @Author       : stark1898y 1658608470@qq.com
  * @Date         : 2024-06-18 15:48:01
  * @LastEditors: mbw && 1600520629@qq.com
- * @LastEditTime: 2025-02-21 11:27:34
+ * @LastEditTime: 2025-06-04 09:10:59
  * @FilePath: \ble_bjq_ch303rct6_ml307\bsp\src\bsp_mq.c
  * @Description  :
  *
@@ -118,7 +118,15 @@ static uint8_t Sensor_CheckData(void)
     static rt_uint8_t fault_buf[SENSOR_SAMPLING_TIMS]           = {0};
     rt_uint16_t voltage                                         = Get_Gas_VoltageAdcInt1000x();
 
+    if(alarm_flag)
+    {
+        alarm_status_buffer[index] = ((voltage > Sensor_device.alarm_value - 50) && (voltage < MQ_VOLTAGE_HIGH_LIMIT)) ? kSensorAlarm : kSensorNormal;
+    }
+    else
+    {
         alarm_status_buffer[index] = ((voltage > Sensor_device.alarm_value) && (voltage < MQ_VOLTAGE_HIGH_LIMIT)) ? kSensorAlarm : kSensorNormal;
+    }
+    
     fault_buf[index]           = ((voltage < MQ_VOLTAGE_LOW_LIMIT) || (voltage > MQ_VOLTAGE_HIGH_LIMIT)) ? kSensorFault : kSensorNormal;
     index++;
     if (index >= SENSOR_SAMPLING_TIMS)