fix: 压力改为增量触发

main.py

@@ -287,7 +287,6 @@ def cmd_str():
         last_adc_val = hardware_manager.adc_obj.read()
     except Exception:
         last_adc_val = 0
-    peak_adc_val = 0  # 当前周期内的压力峰值
     # 气压采样：减少日志频率（每 N 个点输出一条），避免 logger.debug 拖慢采样
     PRESSURE_BATCH_SIZE = 100
 
@@ -377,22 +376,14 @@ def cmd_str():
                 pressure_max = adc_val
             if len(pressure_buf) >= PRESSURE_BATCH_SIZE:
                 _flush_pressure_buf("batch")
-            # 峰值检测：压力从峰值下降时触发，确保捕获到最大冲击时刻
-            if adc_val > peak_adc_val:
-                peak_adc_val = adc_val  # 更新峰值
-            if (peak_adc_val >= config.ADC_TRIGGER_THRESHOLD
-                    and adc_val < peak_adc_val
-                    and last_adc_val >= peak_adc_val):
-                # 封顶后下降沿触发：peak是最大值，当前值开始下降，且上次值还在peak位置
+            # 突变增量检测：压力增量大于300时触发
+            if (adc_val - last_adc_val) > 300:
                 hardware_manager.start_idle_timer()  # 重新计时
                 diff_ms = current_time - last_adc_trigger
                 if diff_ms < 3000:
-                    peak_adc_val = 0  # 去抖期间重置峰值
                     time.sleep_ms(5)
                     continue
                 last_adc_trigger = current_time
-                peak_adc_val = 0  # 触发后重置峰值
-                # 触发前先把缓存刷出来，避免波形被长耗时处理截断
                 _flush_pressure_buf("before_trigger")
 
                 try:
@@ -411,7 +402,7 @@ def cmd_str():
                         camera_manager.show(camera_manager.read_frame())
                     except Exception as e:
                         pass
-                time.sleep_ms(5)
+                time.sleep_ms(1)
             last_adc_val = adc_val
 
         except Exception as e: