diff --git a/BLE/DLD110S_Peripheral_28K/APP/peripheral_main.c b/BLE/DLD110S_Peripheral_28K/APP/peripheral_main.c
index 7b4f0e0..fcd2ae3 100644
--- a/BLE/DLD110S_Peripheral_28K/APP/peripheral_main.c
+++ b/BLE/DLD110S_Peripheral_28K/APP/peripheral_main.c
@@ -53,6 +53,7 @@ uint32_t g_sys_freq = 0;
 
 const uint8_t MAX_Store_Size = 80;
 uint8_t g_loop_power_up_state = 0;   // 开机启动时线圈是否连接
+uint8_t g_disconnect_active = 0;     // 当前线圈是否断开中 (1=断开)
 __IO uint32_t TimingDelayInc;
 
 /*===========================================================================
@@ -68,7 +69,7 @@ __IO uint32_t TimingDelayInc;
 #define   ENTRY_CONFIRM         3         // 进入确认: 连续 N 次低于阈值才判有车
 #define   FREEZE_TIMEOUT        1000      // 基线冻结超时: ~8.7s, 持续偏高且稳定后强制更新
 #define   FREEZE_STABILITY_RATE 2         // 冻结稳定性窗口: 参考值 +-2%
-#define   USE_FLATNESS_EXIT     1         // 1=平坦性三条件离开, 0=简单滞回防抖
+// #define   USE_FLATNESS_EXIT     1         // 1=平坦性三条件离开, 0=简单滞回防抖
 #define   WINDOW_ORIGIN         500       // 基线跟踪窗口 (500 窗 ~= 4.4s)
 #define   STABLE_SAMPLES        128       // 稳定期样本数 (~1.1s)
 #define   VARIATION_EVENT_TH    40        // BLE variation 事件阈值 (幅值基准 2^19, 对应旧代码的 5)
@@ -311,7 +312,7 @@ void para_store_init(void)
         poll_sens_key();
 
         g_loop_out_delay = g_loop_cng_unit.delay_time * 2;                  // 定时器以 50ms 为单位, 延时以100ms为单位
-        g_hold_time = g_loop_cng_unit.exist_mode * 30 * 20;  //50ms/per,  30s
+        g_hold_time = g_loop_cng_unit.exist_mode * 20 * 5;  //50ms/per,  period: 5s
         g_safe_max_cnt = g_loop_cng_unit.loopSafe_Timeout * 10 * (1000 / 50);
         g_freq_level = g_loop_cng_unit.loopFreq_Level - 1;
         g_function_mode = g_loop_cng_unit.direction_mode >> 4;
@@ -487,6 +488,7 @@ void INIT_VD(void)
     loop1_FLAG_PLUSE_IN = 0;
     loop1_FLAG_CUT = 0;
     loop1_FLAG_HOLD_TIMEOUT = 0;
+    g_disconnect_active = 0;
 
     loop1_VD_HOLD = 0;
     Hold_CNT = 0;
@@ -773,9 +775,16 @@ void cjq_srv(void){
             return;
         }
         if(loop1_FLAG_CUT){
-            /* 线圈断开后重连: 全复位, 重新自适应测量窗并重建基线 */
-            g_loop_cut_last = 0;
-            INIT_VD();
+            /* 线圈断开后重连: 不丢 VD_FLAG, CAPVD=0 直锁首个样本快速收敛 */
+            g_disconnect_active = 0;
+            loop1_FLAG_CUT = 0;
+            loop1_CAPVD = 0;       // 首个样本直锁, 跳过 IIR
+            loop1_ORG_CNT = 0;     // 丢弃断开期间过期数据
+            loop1_ORG_SUM = 0;
+            if(loop1_Origin == 0) {
+                /* Origin 意外丢失: 全复位 (不应发生, 做防御) */
+                INIT_VD();
+            }
             return;
         }
         if(!loop1_LOOP_OK0){
@@ -793,14 +802,15 @@ void cjq_srv(void){
     }// end if loop1_LOOP_OK
     else{
         loop1_FLAG_CUT = 1;
-        loop1_VD_FLAG = 0;
+        g_disconnect_active = 1;
+        // 不丢 VD_FLAG (保留有车状态, 重连后恢复)
         loop1_FLAG_IN = 0;
         loop1_FLAG_OUT = 0;
         loop1_FLAG_PLUSE = 0;
         loop1_FLAG_PLUSE_IN_F = 0;
         loop1_FLAG_PLUSE_IN = 0;
 
-        // 线圈断开: 继电器释放, 车辆状态清零
+        // 线圈断开: 继电器释放
         RLY1_OFF; RLY2_OFF;
         g_loop_acs_info.relay1_state = 0;
         g_loop_acs_info.relay2_state = 0;
@@ -810,8 +820,8 @@ void cjq_srv(void){
             g_loop_cut_last = loop1_FLAG_CUT;
             if(g_loop_power_up_state){
                 g_loop_cut_amount++;
-                if(g_loop_cut_amount >= 255){
-                    g_loop_cut_amount = 255;
+                if(g_loop_cut_amount > 3){
+                    g_loop_cut_amount = 3;
                 }
             }
         }
@@ -1021,23 +1031,22 @@ void TMR1_IRQHandler(void)
         TimingDelayInc++;
         u32CountWdt++;
 
-        /*--- LED: 稳定期 200ms 快闪; 线圈断开 150ms 快闪 ---*/
-        if(loop1_FLAG_CUT == 0)
+        /*--- LED: 断开中 200ms 快闪; 稳定期 200ms 慢闪 ---*/
+        if(g_disconnect_active || !g_loop_power_up_state)
         {
-            if(!g_loop_stable)
+            /* 线圈断开中 / 上电从未连接 → 200ms 快闪 (故障指示) */
+            _counter1_init++;
+            if(_counter1_init >= 40)  // 40: 200ms
             {
-                _counter1_init++;
-                if(_counter1_init >= 40)  // 40: 200ms
-                {
-                    _counter1_init = 0;
-                    LEDA_ON_OFF();
-                }
+                _counter1_init = 0;
+                LEDA_ON_OFF();
             }
         }
-        else
+        else if(!g_loop_stable)
         {
+            /* 稳定期 → 200ms 慢闪 (自检中) */
             _counter1_init++;
-            if(_counter1_init >= 30)  // 30: 150ms
+            if(_counter1_init >= 40)  // 40: 200ms
             {
                 _counter1_init = 0;
                 LEDA_ON_OFF();