diff --git a/src/components/equipments/SevenSegmentDisplay.vue b/src/components/equipments/SevenSegmentDisplay.vue
index 4e80e3b..4e90edf 100644
--- a/src/components/equipments/SevenSegmentDisplay.vue
+++ b/src/components/equipments/SevenSegmentDisplay.vue
@@ -78,7 +78,8 @@ const pinRefs = ref<Record<string, any>>({});
 interface SevenSegmentDisplayProps {
   size?: number;
   color?: string;
-  AFTERGLOW_DURATION?: number; // 余晖持续时间，单位毫秒
+  AFTERGLOW_BUFFER_SIZE?: number; // 余晖存储槽大小
+  AFTERGLOW_UPDATE_INTERVAL?: number; // 余晖更新间隔，单位毫秒
   pins?: {
     pinId: string;
     constraint: string;
@@ -91,6 +92,8 @@ interface SevenSegmentDisplayProps {
 const props = withDefaults(defineProps<SevenSegmentDisplayProps>(), {
   size: 1,
   color: "red",
+  AFTERGLOW_BUFFER_SIZE: 1, // 默认存储槽大小为100
+  AFTERGLOW_UPDATE_INTERVAL: 1, // 默认更新间隔为2毫秒
   cathodeType: "common", // 默认为共阴极
   pins: () => [
     { pinId: "a", constraint: "", x: 10, y: 170 }, // a段
@@ -122,7 +125,7 @@ watch(
   { deep: true },
 );
 
-// 段引脚状态
+// 段引脚的当前状态
 const segmentStates = ref({
   a: false,
   b: false,
@@ -134,26 +137,26 @@ const segmentStates = ref({
   dp: false,
 });
 
-// 余晖状态
-const afterglowStates = ref({
-  a: false,
-  b: false,
-  c: false,
-  d: false,
-  e: false,
-  f: false,
-  g: false,
-  dp: false,
+// 余晖存储槽 - 每个段有一个存储槽数组，存储历史状态
+const afterglowBuffers = ref<Record<string, boolean[]>>({
+  a: [],
+  b: [],
+  c: [],
+  d: [],
+  e: [],
+  f: [],
+  g: [],
+  dp: [],
 });
 
-// 余晖定时器
-const afterglowTimers = ref<Record<string, number>>({});
+// 更新间隔计时器
+let updateIntervalTimer: number | null = null;
 
-// 判断段是否激活
+// 判断段是否激活 - 如果当前状态或任一历史状态为true，则视为激活
 function isSegmentActive(
   segment: "a" | "b" | "c" | "d" | "e" | "f" | "g" | "dp",
 ): boolean {
-  return segmentStates.value[segment] || afterglowStates.value[segment];
+  return segmentStates.value[segment] || afterglowBuffers.value[segment].some(state => state);
 }
 
 // 更新引脚状态的函数
@@ -170,17 +173,16 @@ function updateSegmentStates() {
     // 可扩展其他模式
   }
 
+  // 如果COM口激活，更新所有段的状态到存储槽
+  if (comActive) {
+    updateAfterglowBuffers();
+  }
+
   for (const pin of props.pins) {
     if (["a", "b", "c", "d", "e", "f", "g", "dp"].includes(pin.pinId)) {
-      // 如果COM未激活，段直接进入熄灭（带余晖效果）
-      if (!comActive) {
-        handleSegmentStateChange(pin.pinId, false);
-        continue;
-      }
-
       // 如果constraint为空，则默认为未激活状态
       if (!pin.constraint) {
-        handleSegmentStateChange(pin.pinId, false);
+        segmentStates.value[pin.pinId as keyof typeof segmentStates.value] = false;
         continue;
       }
 
@@ -193,63 +195,69 @@ function updateSegmentStates() {
         // 共阳极: 低电平激活段
         newState = pinState === "low";
       }
-      handleSegmentStateChange(pin.pinId, newState);
+      
+      // 更新当前状态
+      segmentStates.value[pin.pinId as keyof typeof segmentStates.value] = newState && comActive;
     }
   }
 }
 
-// 处理段状态变化
-function handleSegmentStateChange(segmentId: string, newState: boolean) {
-  const typedSegmentId = segmentId as keyof typeof segmentStates.value;
-  const currentState = segmentStates.value[typedSegmentId];
-  
-  // 更新实际状态
-  segmentStates.value[typedSegmentId] = newState;
-  
-  // 处理余晖效果
-  if (currentState && !newState) {
-    // 从激活变为非激活，启动余晖
-    if (afterglowTimers.value[segmentId]) {
-      window.clearTimeout(afterglowTimers.value[segmentId]);
+// 更新余晖存储槽 - 将当前段状态添加到存储槽中
+function updateAfterglowBuffers() {
+  for (const segmentId of ["a", "b", "c", "d", "e", "f", "g", "dp"]) {
+    const typedSegmentId = segmentId as keyof typeof segmentStates.value;
+    const currentState = segmentStates.value[typedSegmentId];
+    
+    // 将当前状态添加到存储槽的开头
+    afterglowBuffers.value[segmentId].unshift(currentState);
+    
+    // 如果存储槽超过了最大容量，移除最旧的状态
+    if (afterglowBuffers.value[segmentId].length > props.AFTERGLOW_BUFFER_SIZE) {
+      afterglowBuffers.value[segmentId].pop();
     }
-    afterglowStates.value[typedSegmentId] = true;
-    afterglowTimers.value[segmentId] = window.setTimeout(() => {
-      afterglowStates.value[typedSegmentId] = false;
-      delete afterglowTimers.value[segmentId];
-    }, props.AFTERGLOW_DURATION ?? 700);
-  } else if (newState) {
-    // 重新激活，清除余晖
-    if (afterglowTimers.value[segmentId]) {
-      window.clearTimeout(afterglowTimers.value[segmentId]);
-      delete afterglowTimers.value[segmentId];
-    }
-    afterglowStates.value[typedSegmentId] = false;
+  }
+}
+
+// 开始余晖更新间隔
+function startAfterglowUpdates() {
+  if (updateIntervalTimer) return;
+  
+  updateIntervalTimer = window.setInterval(() => {
+    updateSegmentStates();
+  }, props.AFTERGLOW_UPDATE_INTERVAL);
+}
+
+// 停止余晖更新间隔
+function stopAfterglowUpdates() {
+  if (updateIntervalTimer) {
+    window.clearInterval(updateIntervalTimer);
+    updateIntervalTimer = null;
   }
 }
 
 // 监听约束状态变化
 function onConstraintChange(constraint: string, level: string) {
   const affectedPin = props.pins.find((pin) => pin.constraint === constraint);
-  if (
-    affectedPin &&
-    ["a", "b", "c", "d", "e", "f", "g", "dp"].includes(affectedPin.pinId)
-  ) {
+  if (affectedPin) {
     updateSegmentStates();
   }
 }
 
 // 生命周期钩子
 onMounted(() => {
+  // 初始化余晖存储槽
+  for (const segmentId of ["a", "b", "c", "d", "e", "f", "g", "dp"]) {
+    afterglowBuffers.value[segmentId] = Array(props.AFTERGLOW_BUFFER_SIZE).fill(false);
+  }
+  
   updateSegmentStates();
   onConstraintStateChange(onConstraintChange);
+  startAfterglowUpdates();
 });
 
 onUnmounted(() => {
   // 清理约束状态监听
-  // 清理所有余晖定时器
-  Object.values(afterglowTimers.value).forEach(timerId => {
-    if (timerId) window.clearTimeout(timerId);
-  });
+  stopAfterglowUpdates();
 });
 
 // 暴露属性和方法