feat: 压力传感触发判断

main.py

@@ -294,6 +294,10 @@ def cmd_str():
     pressure_max = 0
     pressure_t0_ms = None
 
+    # 压力突变检测（上升沿触发）
+    prev_adc_val = 0            # 上一次ADC值
+    ADC_JUMP_THRESHOLD = 250    # 突变阈值：相邻两次采样差值超过此值视为突变
+
     def _flush_pressure_buf(reason: str):
         nonlocal pressure_buf, pressure_sum, pressure_min, pressure_max, pressure_t0_ms, logger
         if not pressure_buf:
@@ -375,18 +379,27 @@ def cmd_str():
                 pressure_max = adc_val
             if len(pressure_buf) >= PRESSURE_BATCH_SIZE:
                 _flush_pressure_buf("batch")
-            # if adc_val >= 2000:
-            # print(f"adc :{adc_val}")
-            if adc_val >= config.ADC_TRIGGER_THRESHOLD:
+
+            # 压力突变检测：当前值与前一次值的差值超过阈值时触发
+            adc_diff = adc_val - prev_adc_val
+            if adc_diff >= ADC_JUMP_THRESHOLD and prev_adc_val > 0 :
                 hardware_manager.start_idle_timer()  # 重新计时
                 diff_ms = current_time - last_adc_trigger
                 if diff_ms < 3000:
                     logger.info(f"[MAIN] 扳机触发过于频繁, {diff_ms}ms")
+                    prev_adc_val = adc_val
                     continue
                 last_adc_trigger = current_time
-                # 触发前先把缓存刷出来，避免波形被长耗时处理截断
+                # 触发前先把缓存刷出来
                 _flush_pressure_buf("before_trigger")
 
+                if logger:
+                    logger.info(
+                        f"[TRIGGER] ▲ 压力突变触发! "
+                        f"adc={adc_val}, prev={prev_adc_val}, "
+                        f"diff=+{adc_diff}, t={current_time}ms"
+                    )
+
                 try:
                     process_shot(adc_val)
                 except Exception as e:
@@ -395,17 +408,19 @@ def cmd_str():
                         logger.error(f"[MAIN] 图像处理异常: {e}")
                         import traceback
                         logger.error(traceback.format_exc())
-                    time.sleep_ms(100)
-                    continue
-            else:
-                if config.SHOW_CAMERA_PHOTO_WHILE_SHOOTING:
-                    try:
-                        camera_manager.show(camera_manager.read_frame())
-                    except Exception as e:
-                        logger = logger_manager.logger
-                        if logger:
-                            logger.error(f"[MAIN] 显示异常: {e}")
-                time.sleep_ms(5)
+
+            prev_adc_val = adc_val
+
+            # 未触发时的显示逻辑
+            # 未触发时的显示逻辑
+            if config.SHOW_CAMERA_PHOTO_WHILE_SHOOTING:
+                try:
+                    camera_manager.show(camera_manager.read_frame())
+                except Exception as e:
+                    logger = logger_manager.logger
+                    if logger:
+                        logger.error(f"[MAIN] 显示异常: {e}")
+            time.sleep_ms(1)
 
         except Exception as e:
             # 主循环的顶层异常捕获，防止程序静默退出