diff --git a/src/views/asset-management/asset-information/components/BasicInfoCard.vue b/src/views/asset-management/asset-information/components/BasicInfoCard.vue
index 8ae17a7..f873b1f 100644
--- a/src/views/asset-management/asset-information/components/BasicInfoCard.vue
+++ b/src/views/asset-management/asset-information/components/BasicInfoCard.vue
@@ -267,16 +267,40 @@
 
           <!-- 信号信息 -->
           <ElDescriptionsItem label="信号强度(RSSI)">
-            {{ deviceRealtime.rssi || '-' }}
+            {{
+              deviceRealtime.rssi !== undefined &&
+              deviceRealtime.rssi !== null &&
+              deviceRealtime.rssi !== ''
+                ? deviceRealtime.rssi
+                : '-'
+            }}
           </ElDescriptionsItem>
           <ElDescriptionsItem label="接收功率(RSRP)">
-            {{ deviceRealtime.rsrp ? `${deviceRealtime.rsrp} dBm` : '-' }}
+            {{
+              deviceRealtime.rsrp !== undefined &&
+              deviceRealtime.rsrp !== null &&
+              deviceRealtime.rsrp !== ''
+                ? `${deviceRealtime.rsrp} dBm`
+                : '-'
+            }}
           </ElDescriptionsItem>
           <ElDescriptionsItem label="接收质量(RSRQ)">
-            {{ deviceRealtime.rsrq ? `${deviceRealtime.rsrq} dB` : '-' }}
+            {{
+              deviceRealtime.rsrq !== undefined &&
+              deviceRealtime.rsrq !== null &&
+              deviceRealtime.rsrq !== ''
+                ? `${deviceRealtime.rsrq} dB`
+                : '-'
+            }}
           </ElDescriptionsItem>
           <ElDescriptionsItem label="信噪比(SINR)">
-            {{ deviceRealtime.sinr ? `${deviceRealtime.sinr} dB` : '-' }}
+            {{
+              deviceRealtime.sinr !== undefined &&
+              deviceRealtime.sinr !== null &&
+              deviceRealtime.sinr !== ''
+                ? `${deviceRealtime.sinr} dB`
+                : '-'
+            }}
           </ElDescriptionsItem>
           <ElDescriptionsItem label="已连接设备数">
             {{ deviceRealtime.client_number }} / {{ deviceRealtime.max_clients }}
diff --git a/src/views/asset-management/asset-information/composables/useAssetFormatters.ts b/src/views/asset-management/asset-information/composables/useAssetFormatters.ts
index f3f94d9..9fbdfee 100644
--- a/src/views/asset-management/asset-information/composables/useAssetFormatters.ts
+++ b/src/views/asset-management/asset-information/composables/useAssetFormatters.ts
@@ -4,8 +4,10 @@
 
 import type { Ref } from 'vue'
 
+type TagType = 'primary' | 'success' | 'warning' | 'info' | 'danger'
+
 export function useAssetFormatters(deviceRealtime?: Ref<any>) {
-  // 格式化数据大小（MB转GB/MB）
+  // 格式化数据大小（MB 转 GB/MB）
   const formatDataSize = (mb: number) => {
     if (mb >= 1024) {
       return `${(mb / 1024).toFixed(2)}GB`
@@ -20,11 +22,11 @@ export function useAssetFormatters(deviceRealtime?: Ref<any>) {
     return `¥${yuan.toFixed(2)}`
   }
 
-  // 格式化时长（秒转为时分秒）
+  // 格式化时长（秒转时分秒）
   const formatDuration = (seconds?: string) => {
     if (!seconds) return '-'
     const sec = Number(seconds)
-    if (isNaN(sec)) return '-'
+    if (Number.isNaN(sec)) return '-'
 
     const hours = Math.floor(sec / 3600)
     const minutes = Math.floor((sec % 3600) / 60)
@@ -32,14 +34,14 @@ export function useAssetFormatters(deviceRealtime?: Ref<any>) {
 
     if (hours > 0) {
       return `${hours}小时${minutes}分${secs}秒`
-    } else if (minutes > 0) {
-      return `${minutes}分${secs}秒`
-    } else {
-      return `${secs}秒`
     }
+    if (minutes > 0) {
+      return `${minutes}分${secs}秒`
+    }
+    return `${secs}秒`
   }
 
-  // 格式化ICCID为4位一组，用横杠分隔
+  // 格式化 ICCID，每 4 位一组，用横杠分隔
   const formatIccidWithDashes = (iccid: string) => {
     if (!iccid) return ''
     return iccid.replace(/(\d{4})(?=\d)/g, '$1-')
@@ -89,15 +91,13 @@ export function useAssetFormatters(deviceRealtime?: Ref<any>) {
   }
 
   // 获取资产状态标签类型
-  const getAssetStatusType = (
-    status?: number
-  ): 'primary' | 'success' | 'warning' | 'info' | 'danger' => {
+  const getAssetStatusType = (status?: number): TagType => {
     if (status === undefined || status === null) return 'info'
-    const map: Record<number, 'primary' | 'success' | 'warning' | 'info' | 'danger'> = {
-      1: 'info', // 在库
-      2: 'success', // 已分销
-      3: 'success', // 已激活
-      4: 'danger' // 已停用
+    const map: Record<number, TagType> = {
+      1: 'info',
+      2: 'success',
+      3: 'success',
+      4: 'danger'
     }
     return map[status] || 'info'
   }
@@ -113,81 +113,87 @@ export function useAssetFormatters(deviceRealtime?: Ref<any>) {
   }
 
   // 获取在线状态标签类型
-  const getOnlineStatusType = (
-    status?: number
-  ): 'primary' | 'success' | 'warning' | 'info' | 'danger' => {
-    const map: Record<number, 'primary' | 'success' | 'warning' | 'info' | 'danger'> = {
-      0: 'info', // 未知
-      1: 'success', // 在线
-      2: 'danger' // 离线
+  const getOnlineStatusType = (status?: number): TagType => {
+    const map: Record<number, TagType> = {
+      0: 'info',
+      1: 'success',
+      2: 'danger'
     }
     return map[status ?? 0] || 'info'
   }
 
   // 获取钱包状态标签类型
   const getWalletStatusType = (status?: number) => {
-    const map: Record<number, any> = {
-      1: 'success', // 正常
-      2: 'warning', // 冻结
-      3: 'danger' // 关闭
+    const map: Record<number, string> = {
+      1: 'success',
+      2: 'warning',
+      3: 'danger'
     }
     return map[status || 1] || 'info'
   }
 
   // 获取套餐状态标签类型
-  const getPackageStatusTagType = (
-    status?: number
-  ): 'primary' | 'success' | 'warning' | 'info' | 'danger' => {
+  const getPackageStatusTagType = (status?: number): TagType => {
     if (status === undefined || status === null) return 'info'
-    const map: Record<number, 'primary' | 'success' | 'warning' | 'info' | 'danger'> = {
-      0: 'info', // 待生效
-      1: 'success', // 生效中
-      2: 'warning', // 已用完
-      3: 'danger', // 已过期
-      4: 'info' // 已失效
+    const map: Record<number, TagType> = {
+      0: 'info',
+      1: 'success',
+      2: 'warning',
+      3: 'danger',
+      4: 'info'
     }
     return map[status] || 'info'
   }
 
-  // 计算信号强度等级（基于RSSI、RSRP、RSRQ）
+  const parseSignalValue = (value: unknown) => {
+    if (value === null || value === undefined || value === '') return null
+    const parsed = Number(value)
+    return Number.isNaN(parsed) ? null : parsed
+  }
+
+  const clamp = (value: number, min: number, max: number) => {
+    return Math.min(Math.max(value, min), max)
+  }
+
+  const calculateSignalScore = () => {
+    if (!deviceRealtime?.value) return null
+
+    const rsrp = parseSignalValue(deviceRealtime.value.rsrp)
+    const rsrq = parseSignalValue(deviceRealtime.value.rsrq)
+    const sinr = parseSignalValue(deviceRealtime.value.sinr)
+
+    // RSRP、RSRQ 必须是负数；SINR 允许 0 或负值
+    if (rsrp === null || rsrq === null || sinr === null) return null
+    if (rsrp >= 0 || rsrq >= 0) return null
+
+    const rsrpScore = clamp((rsrp + 120) * 2, 0, 100)
+    const rsrqScore = clamp((rsrq + 20) * 5, 0, 100)
+    const sinrScore = clamp(sinr * 5, 0, 100)
+
+    return rsrpScore * 0.5 + sinrScore * 0.3 + rsrqScore * 0.2
+  }
+
+  // 计算信号强度等级：基于 RSRP、RSRQ、SINR 的综合评分，RSSI 不参与
   const calculateSignalStrength = () => {
-    if (!deviceRealtime?.value) return '-'
+    const score = calculateSignalScore()
+    if (score === null) return '-'
 
-    const rssi = deviceRealtime.value.rssi ? Number(deviceRealtime.value.rssi) : null
-    const rsrp = deviceRealtime.value.rsrp ? Number(deviceRealtime.value.rsrp) : null
-
-    // 优先使用RSRP判断（更准确）
-    // RSRP范围通常在-140到-44 dBm之间，0或正值表示无效数据
-    if (rsrp !== null && !isNaN(rsrp) && rsrp < 0) {
-      if (rsrp >= -80) return '优秀'
-      if (rsrp >= -90) return '良好'
-      if (rsrp >= -100) return '一般'
-      if (rsrp >= -110) return '较差'
-      return '极差'
-    }
-
-    // 其次使用RSSI
-    // RSSI范围通常在-113到-51 dBm之间，0或正值表示无效数据
-    if (rssi !== null && !isNaN(rssi) && rssi < 0) {
-      if (rssi >= -70) return '优秀'
-      if (rssi >= -85) return '良好'
-      if (rssi >= -100) return '一般'
-      if (rssi >= -110) return '较差'
-      return '极差'
-    }
-
-    return '-'
+    if (score >= 85) return '极好'
+    if (score >= 70) return '良好'
+    if (score >= 50) return '一般'
+    if (score >= 30) return '较差'
+    return '很差'
   }
 
   // 获取信号强度标签类型
-  const getSignalStrengthType = (): 'primary' | 'success' | 'warning' | 'info' | 'danger' => {
+  const getSignalStrengthType = (): TagType => {
     const strength = calculateSignalStrength()
-    const map: Record<string, 'primary' | 'success' | 'warning' | 'info' | 'danger'> = {
-      优秀: 'success',
+    const map: Record<string, TagType> = {
+      极好: 'success',
       良好: 'success',
       一般: 'warning',
       较差: 'danger',
-      极差: 'danger'
+      很差: 'danger'
     }
     return map[strength] || 'info'
   }
@@ -203,10 +209,10 @@ export function useAssetFormatters(deviceRealtime?: Ref<any>) {
 
   // 获取交易类型标签颜色
   const getTransactionTypeTag = (type: string | undefined) => {
-    const map: Record<string, any> = {
-      recharge: 'success', // 充值
-      deduct: 'danger', // 扣款
-      refund: 'warning' // 退款
+    const map: Record<string, string> = {
+      recharge: 'success',
+      deduct: 'danger',
+      refund: 'warning'
     }
     return map[type || ''] || 'info'
   }
@@ -214,10 +220,10 @@ export function useAssetFormatters(deviceRealtime?: Ref<any>) {
   // 获取支付状态标签类型
   const getPaymentStatusType = (status: number): 'success' | 'warning' | 'danger' | 'info' => {
     const statusMap: Record<number, 'success' | 'warning' | 'danger' | 'info'> = {
-      1: 'warning', // 待支付
-      2: 'success', // 已支付
-      3: 'danger', // 已取消
-      4: 'info' // 已关闭
+      1: 'warning',
+      2: 'success',
+      3: 'danger',
+      4: 'info'
     }
     return statusMap[status] || 'info'
   }