diff --git a/src/apis/domain/biz/index.ts b/src/apis/domain/biz/index.ts
index 7952147..35291e5 100644
--- a/src/apis/domain/biz/index.ts
+++ b/src/apis/domain/biz/index.ts
@@ -1,2 +1,3 @@
 export * from './diag';
+export * from './link-description';
 export * from './station';
diff --git a/src/apis/domain/biz/link-description/index.ts b/src/apis/domain/biz/link-description/index.ts
new file mode 100644
index 0000000..edbc03c
--- /dev/null
+++ b/src/apis/domain/biz/link-description/index.ts
@@ -0,0 +1,10 @@
+import type { NdmCameraLinkDescription } from './ndm-camera-link-description';
+import type { NdmSecurityBoxLinkDescription } from './ndm-security-box-link-description';
+import type { NdmSwitchLinkDescription } from './ndm-switch-link-description';
+
+export * from './link-description';
+export * from './ndm-camera-link-description';
+export * from './ndm-security-box-link-description';
+export * from './ndm-switch-link-description';
+
+export type NdmDeviceLinkDescription = NdmCameraLinkDescription | NdmSecurityBoxLinkDescription | NdmSwitchLinkDescription;
diff --git a/src/apis/domain/biz/link-description/link-description.ts b/src/apis/domain/biz/link-description/link-description.ts
new file mode 100644
index 0000000..2c398dc
--- /dev/null
+++ b/src/apis/domain/biz/link-description/link-description.ts
@@ -0,0 +1,5 @@
+import type { DeviceStoreIndex } from '@/apis';
+
+export interface LinkDescription {
+  upstream?: DeviceStoreIndex[];
+}
diff --git a/src/apis/domain/biz/link-description/ndm-camera-link-description.ts b/src/apis/domain/biz/link-description/ndm-camera-link-description.ts
new file mode 100644
index 0000000..06c10d2
--- /dev/null
+++ b/src/apis/domain/biz/link-description/ndm-camera-link-description.ts
@@ -0,0 +1,3 @@
+import type { LinkDescription } from './link-description';
+
+export interface NdmCameraLinkDescription extends LinkDescription {}
diff --git a/src/apis/domain/biz/link-description/ndm-security-box-link-description.ts b/src/apis/domain/biz/link-description/ndm-security-box-link-description.ts
new file mode 100644
index 0000000..b9584c9
--- /dev/null
+++ b/src/apis/domain/biz/link-description/ndm-security-box-link-description.ts
@@ -0,0 +1,8 @@
+import type { DeviceStoreIndex } from '@/apis';
+import type { LinkDescription } from './link-description';
+
+export interface NdmSecurityBoxLinkDescription extends LinkDescription {
+  downstream?: {
+    [circuitIndex: number]: DeviceStoreIndex;
+  };
+}
diff --git a/src/apis/domain/biz/link-description/ndm-switch-link-description.ts b/src/apis/domain/biz/link-description/ndm-switch-link-description.ts
new file mode 100644
index 0000000..dec8d38
--- /dev/null
+++ b/src/apis/domain/biz/link-description/ndm-switch-link-description.ts
@@ -0,0 +1,8 @@
+import type { DeviceStoreIndex } from '@/apis';
+import type { LinkDescription } from './link-description';
+
+export interface NdmSwitchLinkDescription extends LinkDescription {
+  downstream?: {
+    [portName: string]: DeviceStoreIndex;
+  };
+}
diff --git a/src/apis/domain/biz/station/device.ts b/src/apis/domain/biz/station/device.ts
index fe94cef..84d1c75 100644
--- a/src/apis/domain/biz/station/device.ts
+++ b/src/apis/domain/biz/station/device.ts
@@ -10,7 +10,13 @@ import type {
   NdmVideoServerResultVO,
   Station,
 } from '@/apis';
-import { DEVICE_TYPE_LITERALS } from '@/enums';
+import { DEVICE_TYPE_LITERALS, type DeviceType } from '@/enums';
+
+export interface DeviceStoreIndex {
+  stationCode: Station['code'];
+  deviceType: DeviceType;
+  deviceDbId: string;
+}
 
 export interface StationDevices {
   [DEVICE_TYPE_LITERALS.ndmAlarmHost]: NdmAlarmHostResultVO[];
diff --git a/src/components/device/device-card/components/current-diag/device-header-card.vue b/src/components/device/device-card/components/current-diag/device-header-card.vue
index 6827120..28b7522 100644
--- a/src/components/device/device-card/components/current-diag/device-header-card.vue
+++ b/src/components/device/device-card/components/current-diag/device-header-card.vue
@@ -1,13 +1,16 @@
 <script setup lang="ts">
-import { detailDeviceApi, probeDeviceApi, type NdmDeviceResultVO, type Station } from '@/apis';
-import { DEVICE_TYPE_NAMES, tryGetDeviceType } from '@/enums';
+import { detailDeviceApi, probeDeviceApi, type LinkDescription, type NdmDeviceResultVO, type Station } from '@/apis';
+import { SELECT_DEVICE_FN_INJECTION_KEY } from '@/constants';
+import { DEVICE_TYPE_LITERALS, DEVICE_TYPE_NAMES, tryGetDeviceType } from '@/enums';
 import { useDeviceStore } from '@/stores';
 import { parseErrorFeedback } from '@/utils';
 import { useMutation } from '@tanstack/vue-query';
 import { ApiOutlined, ReloadOutlined } from '@vicons/antd';
 import { isCancel } from 'axios';
+import destr from 'destr';
 import { NButton, NCard, NFlex, NIcon, NTag, NTooltip } from 'naive-ui';
-import { computed, onBeforeUnmount, ref, toRefs } from 'vue';
+import { storeToRefs } from 'pinia';
+import { computed, inject, onBeforeUnmount, ref, toRefs } from 'vue';
 
 const props = defineProps<{
   ndmDevice: NdmDeviceResultVO;
@@ -18,6 +21,9 @@ defineSlots<{
   'append-info': () => any;
 }>();
 
+const deviceStore = useDeviceStore();
+const { lineDevices } = storeToRefs(deviceStore);
+
 const { ndmDevice, station } = toRefs(props);
 
 const type = computed(() => {
@@ -30,6 +36,44 @@ const status = computed(() => ndmDevice.value.deviceStatus);
 const ipAddr = computed(() => ndmDevice.value.ipAddress ?? '-');
 const gbCode = computed(() => Reflect.get(ndmDevice.value, 'gbCode') as string | undefined);
 
+const linkDescription = computed(() => {
+  const result = destr<any>(ndmDevice.value.linkDescription);
+  if (!result) return null;
+  if (typeof result !== 'object') return null;
+  return result as LinkDescription;
+});
+
+const upperDevices = computed(() => {
+  const devices: NdmDeviceResultVO[] = [];
+  if (!linkDescription.value) return devices;
+  if (!linkDescription.value.upstream) return devices;
+  linkDescription.value.upstream.forEach((deviceStoreIndex) => {
+    const { stationCode, deviceType, deviceDbId } = deviceStoreIndex;
+    const stationDevices = lineDevices.value[stationCode];
+    if (!stationDevices) return;
+    const classified = stationDevices[deviceType];
+    const device = classified.find((device) => device.id === deviceDbId);
+    if (device) devices.push(device);
+  });
+  return devices.sort((aDevice, bDevice) => {
+    // 按在DEVICE_TYPE_LITERALS中的顺序排序
+    const aDeviceType = tryGetDeviceType(aDevice.deviceType);
+    const bDeviceType = tryGetDeviceType(bDevice.deviceType);
+    if (!aDeviceType || !bDeviceType) return 0;
+    const deviceTypes = Object.values(DEVICE_TYPE_LITERALS);
+    return deviceTypes.indexOf(aDeviceType) - deviceTypes.indexOf(bDeviceType);
+  });
+});
+
+// 获取从父组件注入的 `selectDevice` 函数
+const selectDeviceFn = inject(SELECT_DEVICE_FN_INJECTION_KEY);
+// 跳转到上游设备
+const navigateToUpperDevice = (upperDevice: NdmDeviceResultVO) => {
+  if (!!selectDeviceFn && !!selectDeviceFn.value) {
+    selectDeviceFn.value(upperDevice, station.value.code);
+  }
+};
+
 const canOpenMgmtPage = computed(() => {
   return Object.keys(ndmDevice.value).includes('manageUrl');
 });
@@ -96,40 +140,49 @@ onBeforeUnmount(() => {
 <template>
   <NCard hoverable size="small">
     <template #header>
-      <NFlex align="center">
-        <NTag v-if="status === '10'" size="small" type="success">在线</NTag>
-        <NTag v-else-if="status === '20'" size="small" type="error">离线</NTag>
-        <NTag v-else size="small" type="warning">-</NTag>
-        <div>{{ name }}</div>
-        <NButton v-if="canOpenMgmtPage" ghost size="tiny" type="default" :focusable="false" @click="onClickOpenMgmtPage">管理</NButton>
+      <NFlex vertical>
+        <NFlex align="center">
+          <NTag v-if="status === '10'" size="small" type="success">在线</NTag>
+          <NTag v-else-if="status === '20'" size="small" type="error">离线</NTag>
+          <NTag v-else size="small" type="warning">-</NTag>
+          <div>{{ name }}</div>
+          <NButton v-if="canOpenMgmtPage" ghost size="tiny" type="default" :focusable="false" @click="onClickOpenMgmtPage">管理</NButton>
+          <div style="margin-left: auto">
+            <NTooltip v-if="canProbe" trigger="hover">
+              <template #trigger>
+                <NButton size="small" quaternary circle :loading="probing" @click="() => probeDevice()">
+                  <template #icon>
+                    <NIcon :component="ApiOutlined" />
+                  </template>
+                </NButton>
+              </template>
+              <template #default>
+                <span>请求最新诊断</span>
+              </template>
+            </NTooltip>
+            <NTooltip trigger="hover">
+              <template #trigger>
+                <NButton size="small" quaternary circle :loading="loading" @click="() => detailDevice()">
+                  <template #icon>
+                    <NIcon :component="ReloadOutlined" />
+                  </template>
+                </NButton>
+              </template>
+              <template #default>
+                <span>刷新设备</span>
+              </template>
+            </NTooltip>
+          </div>
+        </NFlex>
+        <div v-if="upperDevices.length > 0" style="font-size: 0.85rem">
+          <span>上游设备：</span>
+          <template v-for="(device, index) in upperDevices" :key="index">
+            <span style="text-decoration: underline; cursor: pointer" @click="() => navigateToUpperDevice(device)">{{ device.name }}</span>
+            <span v-if="index < upperDevices.length - 1">、</span>
+          </template>
+        </div>
       </NFlex>
     </template>
-    <template #header-extra>
-      <NTooltip v-if="canProbe" trigger="hover">
-        <template #trigger>
-          <NButton size="small" quaternary circle :loading="probing" @click="() => probeDevice()">
-            <template #icon>
-              <NIcon :component="ApiOutlined" />
-            </template>
-          </NButton>
-        </template>
-        <template #default>
-          <span>请求最新诊断</span>
-        </template>
-      </NTooltip>
-      <NTooltip trigger="hover">
-        <template #trigger>
-          <NButton size="small" quaternary circle :loading="loading" @click="() => detailDevice()">
-            <template #icon>
-              <NIcon :component="ReloadOutlined" />
-            </template>
-          </NButton>
-        </template>
-        <template #default>
-          <span>刷新设备</span>
-        </template>
-      </NTooltip>
-    </template>
     <template #default>
       <div style="font-size: small; color: #666">
         <div>
diff --git a/src/components/device/device-card/components/current-diag/index.ts b/src/components/device/device-card/components/current-diag/index.ts
index ad5707e..21146fa 100644
--- a/src/components/device/device-card/components/current-diag/index.ts
+++ b/src/components/device/device-card/components/current-diag/index.ts
@@ -4,7 +4,20 @@ import DeviceHeaderCard from './device-header-card.vue';
 import NvrDiskCard from './nvr-disk-card.vue';
 import NvrRecordCard from './nvr-record-card.vue';
 import SecurityBoxCircuitCard from './security-box-circuit-card.vue';
+import SecurityBoxCircuitLinkModal from './security-box-circuit-link-modal.vue';
 import SecurityBoxEnvCard from './security-box-env-card.vue';
 import SwitchPortCard from './switch-port-card.vue';
+import SwitchPortLinkModal from './switch-port-link-modal.vue';
 
-export { DeviceCommonCard, DeviceHardwareCard, DeviceHeaderCard, NvrDiskCard, NvrRecordCard, SecurityBoxCircuitCard, SecurityBoxEnvCard, SwitchPortCard };
+export {
+  DeviceCommonCard,
+  DeviceHardwareCard,
+  DeviceHeaderCard,
+  NvrDiskCard,
+  NvrRecordCard,
+  SecurityBoxCircuitCard,
+  SecurityBoxCircuitLinkModal,
+  SecurityBoxEnvCard,
+  SwitchPortCard,
+  SwitchPortLinkModal,
+};
diff --git a/src/components/device/device-card/components/current-diag/security-box-circuit-card.vue b/src/components/device/device-card/components/current-diag/security-box-circuit-card.vue
index 36b2087..480b396 100644
--- a/src/components/device/device-card/components/current-diag/security-box-circuit-card.vue
+++ b/src/components/device/device-card/components/current-diag/security-box-circuit-card.vue
@@ -1,28 +1,53 @@
 <script setup lang="ts">
-import { probeDeviceApi, rebootSecurityBoxApi, turnCitcuitStatusApi, type NdmSecurityBoxCircuit, type NdmSecurityBoxResultVO, type Station } from '@/apis';
+import {
+  detailDeviceApi,
+  probeDeviceApi,
+  rebootSecurityBoxApi,
+  turnCitcuitStatusApi,
+  updateDeviceApi,
+  type LinkDescription,
+  type NdmDeviceResultVO,
+  type NdmSecurityBoxCircuit,
+  type NdmSecurityBoxLinkDescription,
+  type NdmSecurityBoxResultVO,
+  type Station,
+} from '@/apis';
+import { SecurityBoxCircuitLinkModal } from '@/components';
+import { SELECT_DEVICE_FN_INJECTION_KEY } from '@/constants';
+import { useDeviceStore, useSettingStore } from '@/stores';
 import { parseErrorFeedback } from '@/utils';
 import { useMutation } from '@tanstack/vue-query';
 import { PoweroffOutlined } from '@vicons/antd';
 import { watchImmediate } from '@vueuse/core';
-import { NButton, NCard, NDescriptions, NDescriptionsItem, NFlex, NIcon, NPopconfirm, NPopover, NSwitch, NTag, useThemeVars, type TagProps } from 'naive-ui';
-import { computed, ref, toRefs } from 'vue';
+import { isCancel } from 'axios';
+import destr from 'destr';
+import { cloneDeep, isFunction } from 'es-toolkit';
+import { NButton, NCard, NDescriptions, NDescriptionsItem, NDropdown, NFlex, NIcon, NPopconfirm, NPopover, NSwitch, NTag, useThemeVars, type DropdownOption, type TagProps } from 'naive-ui';
+import { storeToRefs } from 'pinia';
+import { computed, inject, ref, toRefs } from 'vue';
 
 const props = defineProps<{
-  circuits?: NdmSecurityBoxCircuit[];
   ndmDevice: NdmSecurityBoxResultVO;
   station: Station;
+  circuits?: NdmSecurityBoxCircuit[];
 }>();
 
 const themeVars = useThemeVars();
 
-const { circuits, ndmDevice, station } = toRefs(props);
+const deviceStore = useDeviceStore();
+const { lineDevices } = storeToRefs(deviceStore);
+
+const settingStore = useSettingStore();
+const { offlineDev } = storeToRefs(settingStore);
+
+const { ndmDevice, station, circuits } = toRefs(props);
 
 const showCard = computed(() => !!circuits.value && circuits.value.length > 0);
 
-const boxCircuits = ref<NdmSecurityBoxCircuit[]>([]);
+const localCircuits = ref<NdmSecurityBoxCircuit[]>([]);
 
 watchImmediate(circuits, (newCircuits) => {
-  boxCircuits.value = newCircuits?.map((circuit) => ({ ...circuit })) ?? [];
+  localCircuits.value = newCircuits?.map((circuit) => ({ ...circuit })) ?? [];
 });
 
 const getCircuitStatusTagType = (circuit: NdmSecurityBoxCircuit): TagProps['type'] => {
@@ -40,22 +65,34 @@ const getCircuitStatusClassName = (circuit: NdmSecurityBoxCircuit) => {
   return status === 0 ? 'circuit-off' : status === 1 ? 'circuit-on' : 'circuit-unknown';
 };
 
+const abortController = ref<AbortController>(new AbortController());
+
 const { mutate: turnStatus, isPending: turning } = useMutation({
   mutationFn: async (params: { circuitIndex: number; newStatus: boolean }) => {
+    abortController.value.abort();
+    abortController.value = new AbortController();
+
+    window.$loadingBar.start();
+
     const { circuitIndex, newStatus } = params;
     if (!ndmDevice.value.ipAddress) {
       throw new Error('设备IP地址不存在');
     }
     const status = newStatus ? 1 : 0;
-    await turnCitcuitStatusApi(ndmDevice.value.ipAddress, circuitIndex, status, { stationCode: station.value.code });
-    await probeDeviceApi(ndmDevice.value, { stationCode: station.value.code });
+    const stationCode = station.value.code;
+    const signal = abortController.value.signal;
+    await turnCitcuitStatusApi(ndmDevice.value.ipAddress, circuitIndex, status, { stationCode, signal });
+    await probeDeviceApi(ndmDevice.value, { stationCode, signal });
     return status;
   },
   onSuccess: (status, { circuitIndex }) => {
-    const circuit = boxCircuits.value.at(circuitIndex);
+    window.$loadingBar.finish();
+    const circuit = localCircuits.value.at(circuitIndex);
     if (circuit) circuit.status = status;
   },
   onError: (error) => {
+    window.$loadingBar.error();
+    if (isCancel(error)) return;
     console.error(error);
     const errorFeedback = parseErrorFeedback(error);
     window.$message.error(errorFeedback);
@@ -64,15 +101,173 @@ const { mutate: turnStatus, isPending: turning } = useMutation({
 
 const { mutate: reboot, isPending: rebooting } = useMutation({
   mutationFn: async () => {
+    abortController.value.abort();
+    abortController.value = new AbortController();
+
+    window.$loadingBar.start();
+
     if (!ndmDevice.value.ipAddress) {
       throw new Error('设备IP地址不存在');
     }
-    await rebootSecurityBoxApi(ndmDevice.value.ipAddress, { stationCode: station.value.code });
+
+    const stationCode = station.value.code;
+    const signal = abortController.value.signal;
+    await rebootSecurityBoxApi(ndmDevice.value.ipAddress, { stationCode, signal });
   },
   onSuccess: () => {
+    window.$loadingBar.finish();
     window.$message.success('设备重启成功');
   },
   onError: (error) => {
+    window.$loadingBar.error();
+    if (isCancel(error)) return;
+    console.error(error);
+    const errorFeedback = parseErrorFeedback(error);
+    window.$message.error(errorFeedback);
+  },
+});
+
+const upperDeviceLinkDescription = computed(() => {
+  const result = destr<any>(ndmDevice.value.linkDescription);
+  if (!result) return null;
+  if (typeof result !== 'object') return null;
+  return result as NdmSecurityBoxLinkDescription;
+});
+
+const getLowerDeviceByCircuitIndex = (circuitIndex: number) => {
+  if (!upperDeviceLinkDescription.value) return null;
+  const downstream = upperDeviceLinkDescription.value.downstream;
+  if (!downstream) return null;
+  const deviceStoreIndex = downstream[circuitIndex];
+  if (!deviceStoreIndex) return null;
+  const { stationCode, deviceType, deviceDbId } = deviceStoreIndex;
+  const stationDevices = lineDevices.value[stationCode];
+  if (!stationDevices) return null;
+  const devices = stationDevices[deviceType];
+  const device = devices.find((device) => device.id === deviceDbId);
+  if (!device) return null;
+  return device;
+};
+
+// 获取从父组件注入的selectDevice函数
+const selectDeviceFn = inject(SELECT_DEVICE_FN_INJECTION_KEY);
+// 跳转到下游设备
+const navigateToLowerDevice = (circuitIndex: number) => {
+  const lowerDevice = getLowerDeviceByCircuitIndex(circuitIndex);
+  if (!lowerDevice) return;
+  if (!!selectDeviceFn && !!selectDeviceFn.value) {
+    selectDeviceFn.value(lowerDevice, station.value.code);
+  }
+};
+
+const showModal = ref(false);
+const contextmenu = ref<{ x: number; y: number; circuitIndex?: number }>({ x: 0, y: 0 });
+const showContextmenu = ref(false);
+const contextmenuOptions = computed<DropdownOption[]>(() => [
+  {
+    label: '关联设备',
+    key: 'link-device',
+    onSelect: () => {
+      showContextmenu.value = false;
+      showModal.value = true;
+    },
+  },
+  {
+    label: '解除关联',
+    key: 'unlink-device',
+    onSelect: () => {
+      showContextmenu.value = false;
+      const circuitIndex = contextmenu.value.circuitIndex;
+      if (circuitIndex === undefined) return;
+      const lowerDevice = getLowerDeviceByCircuitIndex(circuitIndex);
+      if (!lowerDevice) return;
+      window.$dialog.warning({
+        title: '确认解除关联吗？',
+        content: `将解除【电路${circuitIndex + 1}】与【${lowerDevice.name}】的关联关系。`,
+        style: { width: '600px' },
+        contentStyle: { height: '60px' },
+        negativeText: '取消',
+        positiveText: '确认',
+        onNegativeClick: () => {
+          window.$dialog.destroyAll();
+        },
+        onPositiveClick: () => {
+          window.$dialog.destroyAll();
+          unlinkDevice({ circuitIndex, lowerDevice });
+        },
+      });
+    },
+  },
+]);
+const onSelectDropdownOption = (key: string, option: DropdownOption) => {
+  const onSelect = option['onSelect'];
+  if (isFunction(onSelect)) {
+    onSelect();
+  }
+};
+const onContextmenu = (payload: PointerEvent, circuitIndex: number) => {
+  payload.stopPropagation();
+  payload.preventDefault();
+  const { clientX, clientY } = payload;
+  contextmenu.value = { x: clientX, y: clientY, circuitIndex };
+  showContextmenu.value = true;
+};
+
+const { mutate: unlinkDevice } = useMutation({
+  mutationFn: async (params: { circuitIndex: number; lowerDevice: NdmDeviceResultVO }) => {
+    abortController.value.abort();
+    abortController.value = new AbortController();
+
+    window.$loadingBar.start();
+
+    const { circuitIndex, lowerDevice } = params;
+
+    if (!upperDeviceLinkDescription.value) return;
+
+    // 1.从下游设备的linkDescription的upstream字段中删除当前上游设备
+    const modifiedLowerDevice = cloneDeep(lowerDevice);
+    // 解除关联时下游设备的linkDescription一定存在
+    const modifiedLowerDeviceLinkDescription = destr<LinkDescription>(modifiedLowerDevice.linkDescription);
+    // upstream字段存在时才进行删除操作
+    if (modifiedLowerDeviceLinkDescription.upstream) {
+      const index = modifiedLowerDeviceLinkDescription.upstream.findIndex((deviceStoreIndex) => deviceStoreIndex.deviceDbId === ndmDevice.value.id);
+      if (index !== -1) {
+        modifiedLowerDeviceLinkDescription.upstream.splice(index, 1);
+      }
+    }
+    modifiedLowerDevice.linkDescription = JSON.stringify(modifiedLowerDeviceLinkDescription);
+
+    // 2. 修改上游设备的linkDescription的downstream字段
+    const modifiedUpperDevice = cloneDeep(ndmDevice.value);
+    const modifiedUpperLinkDescription = cloneDeep(upperDeviceLinkDescription.value);
+    delete modifiedUpperLinkDescription.downstream?.[circuitIndex];
+    modifiedUpperDevice.linkDescription = JSON.stringify(modifiedUpperLinkDescription);
+
+    // 3. 发起update请求并获取最新的设备详情（离线模式下直接修改本地数据）
+    if (offlineDev.value) {
+      return { upperDevice: modifiedUpperDevice, lowerDevice: modifiedLowerDevice };
+    }
+    const stationCode = station.value.code;
+    const signal = abortController.value.signal;
+    await updateDeviceApi(modifiedUpperDevice, { stationCode, signal });
+    await updateDeviceApi(modifiedLowerDevice, { stationCode, signal });
+    const latestUpperDevice = await detailDeviceApi(modifiedUpperDevice, { stationCode, signal });
+    const latestLowerDevice = await detailDeviceApi(modifiedLowerDevice, { stationCode, signal });
+    return { upperDevice: latestUpperDevice, lowerDevice: latestLowerDevice };
+  },
+  onSuccess: (data) => {
+    window.$loadingBar.finish();
+    window.$message.success('解除成功');
+    if (!data) return;
+    const { upperDevice, lowerDevice } = data;
+    if (!!upperDevice && !!lowerDevice) {
+      deviceStore.patchDevice(station.value.code, { ...upperDevice });
+      deviceStore.patchDevice(station.value.code, { ...lowerDevice });
+    }
+  },
+  onError: (error) => {
+    window.$loadingBar.error();
+    if (isCancel(error)) return;
     console.error(error);
     const errorFeedback = parseErrorFeedback(error);
     window.$message.error(errorFeedback);
@@ -94,11 +289,11 @@ const { mutate: reboot, isPending: rebooting } = useMutation({
       </NFlex>
     </template>
     <template #default>
-      <div style="display: grid" :style="{ 'grid-template-columns': `repeat(${Math.min(boxCircuits.length, 4)}, 1fr)` }">
-        <template v-for="(circuit, index) in boxCircuits" :key="index">
+      <div style="display: grid" :style="{ 'grid-template-columns': `repeat(${Math.min(localCircuits.length, 4)}, 1fr)` }">
+        <template v-for="(circuit, circuitIndex) in localCircuits" :key="circuitIndex">
           <NPopover :delay="300">
             <template #trigger>
-              <NFlex justify="center" align="center" :size="0">
+              <div style="display: flex; justify-content: center; align-items: center" @contextmenu="(payload) => onContextmenu(payload, circuitIndex)">
                 <NFlex vertical class="pointer-cursor circuit" style="padding: 12px" :class="getCircuitStatusClassName(circuit)">
                   <NFlex align="center">
                     <NTag class="pointer-cursor" size="small" :type="getCircuitStatusTagType(circuit)">
@@ -109,25 +304,31 @@ const { mutate: reboot, isPending: rebooting } = useMutation({
                         <span>{{ getCircuitStatusText(circuit) }}</span>
                       </template>
                     </NTag>
-                    <span>电路{{ index + 1 }}</span>
+                    <span>电路{{ circuitIndex + 1 }}</span>
                   </NFlex>
                   <NFlex justify="end" align="center">
-                    <NPopconfirm :positive-text="'确认'" :negative-text="'取消'" @positive-click="() => turnStatus({ circuitIndex: index, newStatus: circuit.status !== 1 })">
+                    <NPopconfirm :positive-text="'确认'" :negative-text="'取消'" @positive-click="() => turnStatus({ circuitIndex: circuitIndex, newStatus: circuit.status !== 1 })">
                       <template #trigger>
                         <NSwitch size="small" :value="circuit.status === 1" :loading="turning" />
                       </template>
                       <template #default>
-                        <span>确定要{{ circuit.status === 1 ? '关闭' : '开启' }}电路{{ index + 1 }}吗？</span>
+                        <span>确定要{{ circuit.status === 1 ? '关闭' : '开启' }}电路{{ circuitIndex + 1 }}吗？</span>
                       </template>
                     </NPopconfirm>
                   </NFlex>
                 </NFlex>
-              </NFlex>
+              </div>
             </template>
             <template #default>
               <NDescriptions bordered size="small" label-placement="left" :column="1">
                 <NDescriptionsItem label="电压">{{ circuit.voltage }}V</NDescriptionsItem>
                 <NDescriptionsItem label="电流">{{ circuit.current }}A</NDescriptionsItem>
+                <NDescriptionsItem label="关联设备">
+                  <span v-if="getLowerDeviceByCircuitIndex(circuitIndex)" style="text-decoration: underline; cursor: pointer" @click="() => navigateToLowerDevice(circuitIndex)">
+                    {{ getLowerDeviceByCircuitIndex(circuitIndex)?.name || '-' }}
+                  </span>
+                  <span v-else>-</span>
+                </NDescriptionsItem>
               </NDescriptions>
             </template>
           </NPopover>
@@ -135,6 +336,19 @@ const { mutate: reboot, isPending: rebooting } = useMutation({
       </div>
     </template>
   </NCard>
+
+  <SecurityBoxCircuitLinkModal v-model:show="showModal" :ndm-device="ndmDevice" :station="station" :circuit-index="contextmenu.circuitIndex" />
+
+  <NDropdown
+    placement="bottom-start"
+    trigger="manual"
+    :show="showContextmenu"
+    :x="contextmenu.x"
+    :y="contextmenu.y"
+    :options="contextmenuOptions"
+    @select="onSelectDropdownOption"
+    @clickoutside="() => (showContextmenu = false)"
+  />
 </template>
 
 <style scoped lang="scss">
diff --git a/src/components/device/device-card/components/current-diag/security-box-circuit-link-modal.vue b/src/components/device/device-card/components/current-diag/security-box-circuit-link-modal.vue
new file mode 100644
index 0000000..ac99f62
--- /dev/null
+++ b/src/components/device/device-card/components/current-diag/security-box-circuit-link-modal.vue
@@ -0,0 +1,212 @@
+<script setup lang="ts">
+import { detailDeviceApi, updateDeviceApi, type NdmCameraLinkDescription, type NdmDeviceResultVO, type NdmSecurityBoxLinkDescription, type NdmSecurityBoxResultVO, type Station } from '@/apis';
+import { DeviceTree } from '@/components';
+import { tryGetDeviceType } from '@/enums';
+import { useDeviceStore, useSettingStore } from '@/stores';
+import { parseErrorFeedback } from '@/utils';
+import { useMutation } from '@tanstack/vue-query';
+import { isCancel } from 'axios';
+import destr from 'destr';
+import { cloneDeep } from 'es-toolkit';
+import { NButton, NFlex, NModal } from 'naive-ui';
+import { storeToRefs } from 'pinia';
+import { computed, ref, toRefs } from 'vue';
+
+const props = defineProps<{
+  ndmDevice: NdmSecurityBoxResultVO;
+  station: Station;
+  circuitIndex?: number;
+}>();
+
+const show = defineModel<boolean>('show', { default: false });
+
+const deviceStore = useDeviceStore();
+
+const settingStore = useSettingStore();
+const { offlineDev } = storeToRefs(settingStore);
+
+const { ndmDevice, station, circuitIndex } = toRefs(props);
+
+const upperDeviceLinkDescription = computed(() => {
+  const result = destr<any>(ndmDevice.value.linkDescription);
+  if (!result) return null;
+  if (typeof result !== 'object') return null;
+  return result as NdmSecurityBoxLinkDescription;
+});
+
+const lowerDevice = ref<NdmDeviceResultVO>();
+const lowerDeviceLinkDescription = computed<NdmCameraLinkDescription | null>(() => {
+  if (!lowerDevice.value) return null;
+  const result = destr<any>(lowerDevice.value.linkDescription);
+  if (!result) return null;
+  if (typeof result !== 'object') return null;
+  return result;
+});
+const onAfterSelectDevice = (device: NdmDeviceResultVO) => {
+  lowerDevice.value = device;
+};
+
+const abortController = ref<AbortController>(new AbortController());
+
+const { mutate: linkPortToDevice, isPending: linking } = useMutation({
+  mutationFn: async () => {
+    abortController.value.abort();
+    abortController.value = new AbortController();
+
+    window.$loadingBar.start();
+
+    const upperDeviceType = tryGetDeviceType(ndmDevice.value.deviceType);
+    if (!upperDeviceType) throw new Error('本设备类型未知');
+    const upperDeviceDbId = ndmDevice.value.id;
+    if (!upperDeviceDbId) throw new Error('本设备没有ID');
+
+    if (circuitIndex.value === undefined) throw new Error('该电路不存在');
+
+    if (!lowerDevice.value) throw new Error('请选择要关联的设备');
+    const lowerDeviceType = tryGetDeviceType(lowerDevice.value?.deviceType);
+    if (!lowerDeviceType) throw new Error('该设备类型未知');
+    const lowerDeviceDbId = lowerDevice.value?.id;
+    if (!lowerDeviceDbId) throw new Error('该设备没有ID');
+
+    // 0. 检查上游设备的linkDescription的downstream字段是否存在某个端口已经关联下游设备
+    const duplicated = Object.entries(upperDeviceLinkDescription.value?.downstream ?? {}).find(([, deviceStoreIndex]) => {
+      return deviceStoreIndex.deviceDbId === lowerDeviceDbId;
+    });
+    if (duplicated) {
+      const [portName] = duplicated;
+      throw new Error(`该设备已关联到端口${portName}`);
+    }
+
+    // 1. 修改上游设备的linkDescription的downstream字段
+    const modifiedUpperDevice = cloneDeep(ndmDevice.value);
+    let modifiedUpperDeviceLinkDescription: NdmSecurityBoxLinkDescription;
+    if (!upperDeviceLinkDescription.value) {
+      modifiedUpperDeviceLinkDescription = {
+        downstream: {
+          [circuitIndex.value]: {
+            stationCode: station.value.code,
+            deviceType: lowerDeviceType,
+            deviceDbId: lowerDeviceDbId,
+          },
+        },
+      };
+    } else {
+      modifiedUpperDeviceLinkDescription = {
+        ...upperDeviceLinkDescription.value,
+        downstream: {
+          ...upperDeviceLinkDescription.value.downstream,
+          [circuitIndex.value]: {
+            stationCode: station.value.code,
+            deviceType: lowerDeviceType,
+            deviceDbId: lowerDeviceDbId,
+          },
+        },
+      };
+    }
+    modifiedUpperDevice.linkDescription = JSON.stringify(modifiedUpperDeviceLinkDescription);
+
+    // 2. 修改下游设备的linkDescription的upstream字段
+    const modifiedLowerDevice = cloneDeep(lowerDevice.value);
+    let modifiedLowerDeviceLinkDescription: NdmCameraLinkDescription;
+    if (!lowerDeviceLinkDescription.value) {
+      modifiedLowerDeviceLinkDescription = {
+        upstream: [
+          {
+            stationCode: station.value.code,
+            deviceType: upperDeviceType,
+            deviceDbId: upperDeviceDbId,
+          },
+        ],
+      };
+    } else {
+      const upstream = cloneDeep(lowerDeviceLinkDescription.value.upstream);
+      if (!upstream) {
+        modifiedLowerDeviceLinkDescription = {
+          ...lowerDeviceLinkDescription.value,
+          upstream: [
+            {
+              stationCode: station.value.code,
+              deviceType: upperDeviceType,
+              deviceDbId: upperDeviceDbId,
+            },
+          ],
+        };
+      } else {
+        const deviceStoreIndex = upstream.find((deviceStoreIndex) => deviceStoreIndex.deviceDbId === upperDeviceDbId);
+        if (!deviceStoreIndex) {
+          upstream.push({
+            stationCode: station.value.code,
+            deviceType: upperDeviceType,
+            deviceDbId: upperDeviceDbId,
+          });
+        }
+        modifiedLowerDeviceLinkDescription = {
+          ...lowerDeviceLinkDescription.value,
+          upstream,
+        };
+      }
+    }
+    modifiedLowerDevice.linkDescription = JSON.stringify(modifiedLowerDeviceLinkDescription);
+
+    // 3. 发起update请求并获取最新的设备详情（离线模式下直接修改本地数据）
+    if (offlineDev.value) {
+      return { upperDevice: modifiedUpperDevice, lowerDevice: modifiedLowerDevice };
+    }
+    const stationCode = station.value.code;
+    const signal = abortController.value.signal;
+    await updateDeviceApi(modifiedUpperDevice, { stationCode, signal });
+    await updateDeviceApi(modifiedLowerDevice, { stationCode, signal });
+    const latestUpperDevice = await detailDeviceApi(modifiedUpperDevice, { stationCode, signal });
+    const latestLowerDevice = await detailDeviceApi(modifiedLowerDevice, { stationCode, signal });
+    return { upperDevice: latestUpperDevice, lowerDevice: latestLowerDevice };
+  },
+  onSuccess: ({ upperDevice, lowerDevice }) => {
+    show.value = false;
+    window.$loadingBar.finish();
+    window.$message.success('关联成功');
+    if (!!upperDevice && !!lowerDevice) {
+      deviceStore.patchDevice(station.value.code, { ...upperDevice });
+      deviceStore.patchDevice(station.value.code, { ...lowerDevice });
+    }
+  },
+  onError: (error) => {
+    window.$loadingBar.error();
+    if (isCancel(error)) return;
+    console.error(error);
+    const errorFeedback = parseErrorFeedback(error);
+    window.$message.error(errorFeedback);
+  },
+});
+
+const onLink = () => {
+  linkPortToDevice();
+};
+
+const onCancel = () => {
+  abortController.value.abort();
+  show.value = false;
+};
+</script>
+
+<template>
+  <NModal v-model:show="show" preset="card" style="width: 600px; height: 600px" :content-style="{ height: '100%', overflow: 'hidden' }" @close="onCancel" @esc="onCancel">
+    <template #header>
+      <span>{{ ndmDevice.name }}</span>
+      <span> - </span>
+      <span>电路{{ circuitIndex ? circuitIndex + 1 : '-' }}</span>
+      <span> - </span>
+      <span>关联设备</span>
+    </template>
+    <template #default>
+      <DeviceTree :station="station" :events="['select']" :device-prefix-label="'选择'" @after-select-device="onAfterSelectDevice" />
+    </template>
+    <template #action>
+      <NFlex justify="end">
+        <NButton size="small" quaternary @click="onCancel">取消</NButton>
+        <NButton size="small" type="primary" :disabled="!lowerDevice" :loading="linking" @click="onLink">关联</NButton>
+      </NFlex>
+    </template>
+  </NModal>
+</template>
+
+<style scoped lang="scss"></style>
diff --git a/src/components/device/device-card/components/current-diag/switch-port-card.vue b/src/components/device/device-card/components/current-diag/switch-port-card.vue
index 48476f3..7b8c0d2 100644
--- a/src/components/device/device-card/components/current-diag/switch-port-card.vue
+++ b/src/components/device/device-card/components/current-diag/switch-port-card.vue
@@ -1,16 +1,33 @@
 <script setup lang="ts">
-import type { NdmSwitchPortInfo } from '@/apis';
+import { detailDeviceApi, updateDeviceApi, type LinkDescription, type NdmDeviceResultVO, type NdmSwitchLinkDescription, type NdmSwitchPortInfo, type NdmSwitchResultVO, type Station } from '@/apis';
+import { SwitchPortLinkModal } from '@/components';
+import { SELECT_DEVICE_FN_INJECTION_KEY } from '@/constants';
 import { getPortStatusValue, transformPortSpeed } from '@/helpers';
-import { NCard, NDescriptions, NDescriptionsItem, NPopover, useThemeVars } from 'naive-ui';
-import { computed, toRefs } from 'vue';
+import { useDeviceStore, useSettingStore } from '@/stores';
+import { parseErrorFeedback } from '@/utils';
+import { useMutation } from '@tanstack/vue-query';
+import { isCancel } from 'axios';
+import destr from 'destr';
+import { cloneDeep, isFunction } from 'es-toolkit';
+import { NCard, NDescriptions, NDescriptionsItem, NDropdown, NPopover, useThemeVars, type DropdownOption } from 'naive-ui';
+import { storeToRefs } from 'pinia';
+import { computed, inject, onBeforeUnmount, ref, toRefs } from 'vue';
 
 const props = defineProps<{
+  ndmDevice: NdmSwitchResultVO;
+  station: Station;
   ports?: NdmSwitchPortInfo[];
 }>();
 
 const themeVars = useThemeVars();
 
-const { ports } = toRefs(props);
+const deviceStore = useDeviceStore();
+const { lineDevices } = storeToRefs(deviceStore);
+
+const settingStore = useSettingStore();
+const { offlineDev } = storeToRefs(settingStore);
+
+const { ndmDevice, station, ports } = toRefs(props);
 
 const showCard = computed(() => !!ports.value);
 
@@ -58,6 +75,158 @@ const getPortClassName = (port: NdmSwitchPortInfo) => {
   }
   return 'port-unknown';
 };
+
+const upperDeviceLinkDescription = computed(() => {
+  const result = destr<any>(ndmDevice.value.linkDescription);
+  if (!result) return null;
+  if (typeof result !== 'object') return null;
+  return result as NdmSwitchLinkDescription;
+});
+
+const getLowerDeviceByPort = (port: NdmSwitchPortInfo) => {
+  const portName = port.portName;
+  if (!upperDeviceLinkDescription.value) return null;
+  const downstream = upperDeviceLinkDescription.value.downstream;
+  if (!downstream) return null;
+  const deviceStoreIndex = downstream[portName];
+  if (!deviceStoreIndex) return null;
+  const { stationCode, deviceType, deviceDbId } = deviceStoreIndex;
+  const stationDevices = lineDevices.value[stationCode];
+  if (!stationDevices) return null;
+  const devices = stationDevices[deviceType];
+  const device = devices.find((device) => device.id === deviceDbId);
+  if (!device) return null;
+  return device;
+};
+
+// 获取从父组件注入的selectDevice函数
+const selectDeviceFn = inject(SELECT_DEVICE_FN_INJECTION_KEY);
+// 跳转到下游设备
+const navigateToLowerDevice = (port: NdmSwitchPortInfo) => {
+  const lowerDevice = getLowerDeviceByPort(port);
+  if (!lowerDevice) return;
+  if (!!selectDeviceFn && !!selectDeviceFn.value) {
+    selectDeviceFn.value(lowerDevice, station.value.code);
+  }
+};
+
+const showModal = ref(false);
+const contextmenu = ref<{ x: number; y: number; port?: NdmSwitchPortInfo }>({ x: 0, y: 0 });
+const showContextmenu = ref(false);
+const contextmenuOptions = computed<DropdownOption[]>(() => [
+  {
+    label: '关联设备',
+    key: 'link-device',
+    onSelect: () => {
+      showContextmenu.value = false;
+      showModal.value = true;
+    },
+  },
+  {
+    label: '解除关联',
+    key: 'unlink-device',
+    onSelect: () => {
+      showContextmenu.value = false;
+      const port = contextmenu.value.port;
+      if (!port) return;
+      const lowerDevice = getLowerDeviceByPort(port);
+      if (!lowerDevice) return;
+      window.$dialog.warning({
+        title: '确认解除关联吗？',
+        content: `将解除【${port.portName}】与【${lowerDevice.name}】的关联关系。`,
+        style: { width: '600px' },
+        contentStyle: { height: '60px' },
+        negativeText: '取消',
+        positiveText: '确认',
+        onNegativeClick: () => {
+          window.$dialog.destroyAll();
+        },
+        onPositiveClick: () => {
+          window.$dialog.destroyAll();
+          unlinkDevice({ port, lowerDevice });
+        },
+      });
+    },
+  },
+]);
+const onSelectDropdownOption = (key: string, option: DropdownOption) => {
+  const onSelect = option['onSelect'];
+  if (isFunction(onSelect)) {
+    onSelect();
+  }
+};
+const onContextmenu = (payload: PointerEvent, port: NdmSwitchPortInfo) => {
+  payload.stopPropagation();
+  payload.preventDefault();
+  const { clientX, clientY } = payload;
+  contextmenu.value = { x: clientX, y: clientY, port };
+  showContextmenu.value = true;
+};
+
+const abortController = ref<AbortController>(new AbortController());
+const { mutate: unlinkDevice } = useMutation({
+  mutationFn: async (params: { port: NdmSwitchPortInfo; lowerDevice: NdmDeviceResultVO }) => {
+    abortController.value.abort();
+    abortController.value = new AbortController();
+
+    window.$loadingBar.start();
+
+    const { port, lowerDevice } = params;
+
+    if (!upperDeviceLinkDescription.value) return;
+
+    // 1. 从下游设备的linkDescription的upstream字段中删除当前上游设备
+    const modifiedLowerDevice = cloneDeep(lowerDevice);
+    // 解除关联时下游设备的linkDescription一定存在
+    const modifiedLowerDeviceLinkDescription = destr<LinkDescription>(modifiedLowerDevice.linkDescription);
+    // upstream字段存在时才进行删除操作
+    if (modifiedLowerDeviceLinkDescription.upstream) {
+      const index = modifiedLowerDeviceLinkDescription.upstream.findIndex((deviceStoreIndex) => deviceStoreIndex.deviceDbId === ndmDevice.value.id);
+      if (index !== -1) {
+        modifiedLowerDeviceLinkDescription.upstream.splice(index, 1);
+      }
+    }
+    modifiedLowerDevice.linkDescription = JSON.stringify(modifiedLowerDeviceLinkDescription);
+
+    // 2. 修改上游设备的linkDescription的downstream字段
+    const modifiedUpperDevice = cloneDeep(ndmDevice.value);
+    const modifiedUpperLinkDescription = cloneDeep(upperDeviceLinkDescription.value);
+    delete modifiedUpperLinkDescription.downstream?.[port.portName];
+    modifiedUpperDevice.linkDescription = JSON.stringify(modifiedUpperLinkDescription);
+
+    // 3. 发起update请求并获取最新的设备详情（离线模式下直接修改本地数据）
+    if (offlineDev.value) {
+      return { upperDevice: modifiedUpperDevice, lowerDevice: modifiedLowerDevice };
+    }
+    const stationCode = station.value.code;
+    const signal = abortController.value.signal;
+    await updateDeviceApi(modifiedUpperDevice, { stationCode, signal });
+    await updateDeviceApi(modifiedLowerDevice, { stationCode, signal });
+    const latestUpperDevice = await detailDeviceApi(modifiedUpperDevice, { stationCode, signal });
+    const latestLowerDevice = await detailDeviceApi(modifiedLowerDevice, { stationCode, signal });
+    return { upperDevice: latestUpperDevice, lowerDevice: latestLowerDevice };
+  },
+  onSuccess: (data) => {
+    window.$loadingBar.finish();
+    window.$message.success('解除成功');
+    if (!data) return;
+    const { upperDevice, lowerDevice } = data;
+    if (!!upperDevice && !!lowerDevice) {
+      deviceStore.patchDevice(station.value.code, { ...upperDevice });
+      deviceStore.patchDevice(station.value.code, { ...lowerDevice });
+    }
+  },
+  onError: (error) => {
+    window.$loadingBar.error();
+    if (isCancel(error)) return;
+    console.error(error);
+    const errorFeedback = parseErrorFeedback(error);
+    window.$message.error(errorFeedback);
+  },
+});
+onBeforeUnmount(() => {
+  abortController.value.abort();
+});
 </script>
 
 <template>
@@ -77,7 +246,12 @@ const getPortClassName = (port: NdmSwitchPortInfo) => {
               <NPopover :delay="300">
                 <template #trigger>
                   <!-- 最外层div宽度100% -->
-                  <div class="port" style="height: 40px; box-sizing: border-box; display: flex; cursor: pointer" :class="getPortClassName(port)">
+                  <div
+                    class="port"
+                    style="height: 40px; box-sizing: border-box; display: flex; cursor: pointer"
+                    :class="getPortClassName(port)"
+                    @contextmenu="(payload) => onContextmenu(payload, port)"
+                  >
                     <!-- 将端口号和状态指示器包裹起来 用于居中布局 -->
                     <div style="margin: auto; display: flex; flex-direction: column; align-items: center">
                       <div style="font-size: xx-small">{{ index }}</div>
@@ -92,6 +266,12 @@ const getPortClassName = (port: NdmSwitchPortInfo) => {
                     <NDescriptionsItem label="上行速率">{{ transformPortSpeed(port, 'in') }}</NDescriptionsItem>
                     <NDescriptionsItem label="下行速率">{{ transformPortSpeed(port, 'out') }}</NDescriptionsItem>
                     <NDescriptionsItem label="总速率">{{ transformPortSpeed(port, 'total') }}</NDescriptionsItem>
+                    <NDescriptionsItem label="关联设备">
+                      <span v-if="getLowerDeviceByPort(port)" style="text-decoration: underline; cursor: pointer" @click="() => navigateToLowerDevice(port)">
+                        {{ getLowerDeviceByPort(port)?.name || '-' }}
+                      </span>
+                      <span v-else>-</span>
+                    </NDescriptionsItem>
                   </NDescriptions>
                 </template>
               </NPopover>
@@ -101,6 +281,19 @@ const getPortClassName = (port: NdmSwitchPortInfo) => {
       </template>
     </template>
   </NCard>
+
+  <SwitchPortLinkModal v-model:show="showModal" :ndm-device="ndmDevice" :station="station" :port="contextmenu.port" />
+
+  <NDropdown
+    placement="bottom-start"
+    trigger="manual"
+    :show="showContextmenu"
+    :x="contextmenu.x"
+    :y="contextmenu.y"
+    :options="contextmenuOptions"
+    @select="onSelectDropdownOption"
+    @clickoutside="() => (showContextmenu = false)"
+  />
 </template>
 
 <style scoped lang="scss">
diff --git a/src/components/device/device-card/components/current-diag/switch-port-link-modal.vue b/src/components/device/device-card/components/current-diag/switch-port-link-modal.vue
new file mode 100644
index 0000000..70b4682
--- /dev/null
+++ b/src/components/device/device-card/components/current-diag/switch-port-link-modal.vue
@@ -0,0 +1,222 @@
+<script setup lang="ts">
+import {
+  detailDeviceApi,
+  updateDeviceApi,
+  type NdmCameraLinkDescription,
+  type NdmDeviceResultVO,
+  type NdmSwitchLinkDescription,
+  type NdmSwitchPortInfo,
+  type NdmSwitchResultVO,
+  type Station,
+} from '@/apis';
+import { DeviceTree } from '@/components';
+import { tryGetDeviceType } from '@/enums';
+import { useDeviceStore, useSettingStore } from '@/stores';
+import { parseErrorFeedback } from '@/utils';
+import { useMutation } from '@tanstack/vue-query';
+import { isCancel } from 'axios';
+import destr from 'destr';
+import { cloneDeep } from 'es-toolkit';
+import { NButton, NFlex, NModal } from 'naive-ui';
+import { storeToRefs } from 'pinia';
+import { computed, ref, toRefs } from 'vue';
+
+const props = defineProps<{
+  ndmDevice: NdmSwitchResultVO;
+  station: Station;
+  port?: NdmSwitchPortInfo;
+}>();
+
+const show = defineModel<boolean>('show', { default: false });
+
+const deviceStore = useDeviceStore();
+
+const settingStore = useSettingStore();
+const { offlineDev } = storeToRefs(settingStore);
+
+const { ndmDevice, station, port } = toRefs(props);
+
+const upperDeviceLinkDescription = computed(() => {
+  const result = destr<any>(ndmDevice.value.linkDescription);
+  if (!result) return null;
+  if (typeof result !== 'object') return null;
+  return result as NdmSwitchLinkDescription;
+});
+
+const lowerDevice = ref<NdmDeviceResultVO>();
+const lowerDeviceLinkDescription = computed<NdmCameraLinkDescription | NdmSwitchLinkDescription | null>(() => {
+  if (!lowerDevice.value) return null;
+  const result = destr<any>(lowerDevice.value.linkDescription);
+  if (!result) return null;
+  if (typeof result !== 'object') return null;
+  return result;
+});
+const onAfterSelectDevice = (device: NdmDeviceResultVO) => {
+  lowerDevice.value = device;
+};
+
+const abortController = ref<AbortController>(new AbortController());
+
+const { mutate: linkPortToDevice, isPending: linking } = useMutation({
+  mutationFn: async () => {
+    abortController.value.abort();
+    abortController.value = new AbortController();
+
+    window.$loadingBar.start();
+
+    const upperDeviceType = tryGetDeviceType(ndmDevice.value.deviceType);
+    if (!upperDeviceType) throw new Error('本设备类型未知');
+    const upperDeviceDbId = ndmDevice.value.id;
+    if (!upperDeviceDbId) throw new Error('本设备没有ID');
+
+    const { portName } = port.value ?? {};
+    if (!portName) throw new Error('该端口没有名称');
+
+    if (!lowerDevice.value) throw new Error('请选择要关联的设备');
+    const lowerDeviceType = tryGetDeviceType(lowerDevice.value?.deviceType);
+    if (!lowerDeviceType) throw new Error('该设备类型未知');
+    const lowerDeviceDbId = lowerDevice.value?.id;
+    if (!lowerDeviceDbId) throw new Error('该设备没有ID');
+
+    // 0. 检查上游设备的linkDescription的downstream字段是否存在某个端口已经关联下游设备
+    const duplicated = Object.entries(upperDeviceLinkDescription.value?.downstream ?? {}).find(([, deviceStoreIndex]) => {
+      return deviceStoreIndex.deviceDbId === lowerDeviceDbId;
+    });
+    if (duplicated) {
+      const [portName] = duplicated;
+      throw new Error(`该设备已关联到端口${portName}`);
+    }
+
+    // 1. 修改上游设备的linkDescription的downstream字段
+    const modifiedUpperDevice = cloneDeep(ndmDevice.value);
+    let modifiedUpperDeviceLinkDescription: NdmSwitchLinkDescription;
+    if (!upperDeviceLinkDescription.value) {
+      modifiedUpperDeviceLinkDescription = {
+        downstream: {
+          [portName]: {
+            stationCode: station.value.code,
+            deviceType: lowerDeviceType,
+            deviceDbId: lowerDeviceDbId,
+          },
+        },
+      };
+    } else {
+      modifiedUpperDeviceLinkDescription = {
+        ...upperDeviceLinkDescription.value,
+        downstream: {
+          ...upperDeviceLinkDescription.value.downstream,
+          [portName]: {
+            stationCode: station.value.code,
+            deviceType: lowerDeviceType,
+            deviceDbId: lowerDeviceDbId,
+          },
+        },
+      };
+    }
+    modifiedUpperDevice.linkDescription = JSON.stringify(modifiedUpperDeviceLinkDescription);
+
+    // 2. 修改下游设备的linkDescription的upstream字段
+    const modifiedLowerDevice = cloneDeep(lowerDevice.value);
+    let modifiedLowerDeviceLinkDescription: NdmSwitchLinkDescription | NdmCameraLinkDescription;
+    if (!lowerDeviceLinkDescription.value) {
+      modifiedLowerDeviceLinkDescription = {
+        upstream: [
+          {
+            stationCode: station.value.code,
+            deviceType: upperDeviceType,
+            deviceDbId: upperDeviceDbId,
+          },
+        ],
+      };
+    } else {
+      const upstream = cloneDeep(lowerDeviceLinkDescription.value.upstream);
+      if (!upstream) {
+        modifiedLowerDeviceLinkDescription = {
+          ...lowerDeviceLinkDescription.value,
+          upstream: [
+            {
+              stationCode: station.value.code,
+              deviceType: upperDeviceType,
+              deviceDbId: upperDeviceDbId,
+            },
+          ],
+        };
+      } else {
+        const deviceStoreIndex = upstream.find((deviceStoreIndex) => deviceStoreIndex.deviceDbId === upperDeviceDbId);
+        if (!deviceStoreIndex) {
+          upstream.push({
+            stationCode: station.value.code,
+            deviceType: upperDeviceType,
+            deviceDbId: upperDeviceDbId,
+          });
+        }
+        modifiedLowerDeviceLinkDescription = {
+          ...lowerDeviceLinkDescription.value,
+          upstream,
+        };
+      }
+    }
+    modifiedLowerDevice.linkDescription = JSON.stringify(modifiedLowerDeviceLinkDescription);
+
+    // 3. 发起update请求并获取最新的设备详情（离线模式下直接修改本地数据）
+    if (offlineDev.value) {
+      return { upperDevice: modifiedUpperDevice, lowerDevice: modifiedLowerDevice };
+    }
+    const stationCode = station.value.code;
+    const signal = abortController.value.signal;
+    await updateDeviceApi(modifiedUpperDevice, { stationCode, signal });
+    await updateDeviceApi(modifiedLowerDevice, { stationCode, signal });
+    const latestUpperDevice = await detailDeviceApi(modifiedUpperDevice, { stationCode, signal });
+    const latestLowerDevice = await detailDeviceApi(modifiedLowerDevice, { stationCode, signal });
+    return { upperDevice: latestUpperDevice, lowerDevice: latestLowerDevice };
+  },
+  onSuccess: ({ upperDevice, lowerDevice }) => {
+    show.value = false;
+    window.$loadingBar.finish();
+    window.$message.success('关联成功');
+    if (!!upperDevice && !!lowerDevice) {
+      deviceStore.patchDevice(station.value.code, { ...upperDevice });
+      deviceStore.patchDevice(station.value.code, { ...lowerDevice });
+    }
+  },
+  onError: (error) => {
+    window.$loadingBar.error();
+    if (isCancel(error)) return;
+    console.error(error);
+    const errorFeedback = parseErrorFeedback(error);
+    window.$message.error(errorFeedback);
+  },
+});
+
+const onLink = () => {
+  linkPortToDevice();
+};
+
+const onCancel = () => {
+  abortController.value.abort();
+  show.value = false;
+};
+</script>
+
+<template>
+  <NModal v-model:show="show" preset="card" style="width: 600px; height: 600px" :content-style="{ height: '100%', overflow: 'hidden' }" @close="onCancel" @esc="onCancel">
+    <template #header>
+      <span>{{ ndmDevice.name }}</span>
+      <span> - </span>
+      <span>{{ port?.portName }}</span>
+      <span> - </span>
+      <span>关联设备</span>
+    </template>
+    <template #default>
+      <DeviceTree :station="station" :events="['select']" :device-prefix-label="'选择'" @after-select-device="onAfterSelectDevice" />
+    </template>
+    <template #action>
+      <NFlex justify="end">
+        <NButton size="small" quaternary @click="onCancel">取消</NButton>
+        <NButton size="small" type="primary" :disabled="!lowerDevice" :loading="linking" @click="onLink">关联</NButton>
+      </NFlex>
+    </template>
+  </NModal>
+</template>
+
+<style scoped lang="ts"></style>
diff --git a/src/components/device/device-card/ndm-security-box/security-box-current-diag.vue b/src/components/device/device-card/ndm-security-box/security-box-current-diag.vue
index a41d948..3766754 100644
--- a/src/components/device/device-card/ndm-security-box/security-box-current-diag.vue
+++ b/src/components/device/device-card/ndm-security-box/security-box-current-diag.vue
@@ -49,7 +49,7 @@ const circuits = computed(() => lastDiagInfo.value?.info?.at(0)?.circuits);
     <DeviceCommonCard :common-info="commonInfo" />
     <DeviceHardwareCard :cpu-usage="cpuUsage" :mem-usage="memUsage" />
     <SecurityBoxEnvCard :fan-speeds="fanSpeeds" :temperature="temperature" :humidity="humidity" :switches="switches" />
-    <SecurityBoxCircuitCard :circuits="circuits" :ndm-device="ndmDevice" :station="station" />
+    <SecurityBoxCircuitCard :ndm-device="ndmDevice" :station="station" :circuits="circuits" />
   </NFlex>
 </template>
 
diff --git a/src/components/device/device-card/ndm-switch/switch-current-diag.vue b/src/components/device/device-card/ndm-switch/switch-current-diag.vue
index 868518f..33df00d 100644
--- a/src/components/device/device-card/ndm-switch/switch-current-diag.vue
+++ b/src/components/device/device-card/ndm-switch/switch-current-diag.vue
@@ -29,7 +29,7 @@ const ports = computed(() => lastDiagInfo.value?.info?.portInfoList);
   <NFlex vertical>
     <DeviceHeaderCard :ndm-device="ndmDevice" :station="station" />
     <DeviceHardwareCard :cpu-usage="cpuUsage" :mem-usage="memUsage" />
-    <SwitchPortCard :ports="ports" />
+    <SwitchPortCard :ndm-device="ndmDevice" :station="station" :ports="ports" />
   </NFlex>
 </template>
 
diff --git a/src/composables/device/use-device-management.ts b/src/composables/device/use-device-management.ts
index 5969b7b..50b51b9 100644
--- a/src/composables/device/use-device-management.ts
+++ b/src/composables/device/use-device-management.ts
@@ -1,4 +1,4 @@
-import { deleteDeviceApi, exportDeviceApi, importDeviceApi, type ImportMsg, type NdmDevicePageQuery, type PageParams, type Station } from '@/apis';
+import { deleteDeviceApi, exportDeviceApi, importDeviceApi, type ImportMsg, type NdmDeviceLinkDescription, type NdmDevicePageQuery, type PageParams, type Station } from '@/apis';
 import { useStationDevicesMutation } from '@/composables';
 import { DEVICE_TYPE_NAMES, type DeviceType } from '@/enums';
 import { useDeviceStore, useStationStore } from '@/stores';
@@ -6,6 +6,7 @@ import { downloadByData, parseErrorFeedback } from '@/utils';
 import { useMutation } from '@tanstack/vue-query';
 import { isCancel } from 'axios';
 import dayjs from 'dayjs';
+import destr from 'destr';
 import { storeToRefs } from 'pinia';
 import { h, onBeforeUnmount } from 'vue';
 
@@ -152,6 +153,32 @@ export const useDeviceManagement = () => {
 
       window.$loadingBar.start();
 
+      // 检查要删除的设备是否存在关联设备
+      const stationDevices = lineDevices.value[stationCode];
+      if (!!stationDevices) {
+        const classified = stationDevices[deviceType];
+        if (!!classified) {
+          const device = classified.find((device) => device.id === id);
+          if (!!device) {
+            const maybeLinkDescription = destr<any>(device.linkDescription);
+            if (!!maybeLinkDescription && typeof maybeLinkDescription === 'object') {
+              const linkDescription = maybeLinkDescription as NdmDeviceLinkDescription;
+              // 只要有上游或下游设备，就不能删除
+              const { upstream } = linkDescription;
+              if (!!upstream && upstream.length > 0) {
+                throw new Error('该设备存在关联的上游设备，无法删除');
+              }
+              if ('downstream' in linkDescription) {
+                const { downstream } = linkDescription;
+                if (!!downstream && Object.keys(downstream).length > 0) {
+                  throw new Error('该设备存在关联的下游设备，无法删除');
+                }
+              }
+            }
+          }
+        }
+      }
+
       return await deleteDeviceApi(deviceType, id, { stationCode, signal });
     },
     onSuccess: (_, { stationCode, signal }) => {
diff --git a/src/constants/index.ts b/src/constants/index.ts
index f2a2009..e8a8a73 100644
--- a/src/constants/index.ts
+++ b/src/constants/index.ts
@@ -1,3 +1,4 @@
+export * from './injection';
 export * from './java';
 export * from './mutation';
 export * from './query';
diff --git a/src/constants/injection.ts b/src/constants/injection.ts
new file mode 100644
index 0000000..4c639bf
--- /dev/null
+++ b/src/constants/injection.ts
@@ -0,0 +1,5 @@
+import type { UseDeviceTreeReturn } from '@/composables';
+import { createInjectionKey } from '@/utils';
+import { type Ref } from 'vue';
+
+export const SELECT_DEVICE_FN_INJECTION_KEY = createInjectionKey<Ref<UseDeviceTreeReturn['selectDevice'] | undefined>>('select-device-fn');
diff --git a/src/pages/device-page.vue b/src/pages/device-page.vue
index d4051e0..0e54557 100644
--- a/src/pages/device-page.vue
+++ b/src/pages/device-page.vue
@@ -1,10 +1,12 @@
 <script setup lang="ts">
 import type { NdmDeviceResultVO, Station } from '@/apis';
 import { DeviceRenderer, DeviceTree, type DeviceTreeProps } from '@/components';
+import type { UseDeviceSelectionReturn } from '@/composables';
+import { SELECT_DEVICE_FN_INJECTION_KEY } from '@/constants';
 import { useStationStore } from '@/stores';
 import { NLayout, NLayoutContent, NLayoutSider } from 'naive-ui';
 import { storeToRefs } from 'pinia';
-import { ref } from 'vue';
+import { provide, ref } from 'vue';
 
 const stationStore = useStationStore();
 const { stations } = storeToRefs(stationStore);
@@ -12,6 +14,13 @@ const { stations } = storeToRefs(stationStore);
 const selectedStation = ref<Station>();
 const selectedDevice = ref<NdmDeviceResultVO>();
 
+// 获取设备树暴露出来的 `selectDevice` 函数，并将其提供给子组件
+const selectDeviceFn = ref<UseDeviceSelectionReturn['selectDevice']>();
+const onExposeSelectDeviceFn: DeviceTreeProps['onExposeSelectDeviceFn'] = (fn) => {
+  selectDeviceFn.value = fn;
+};
+provide(SELECT_DEVICE_FN_INJECTION_KEY, selectDeviceFn);
+
 const onAfterSelectDevice: DeviceTreeProps['onAfterSelectDevice'] = (device, stationCode) => {
   selectedDevice.value = device;
   selectedStation.value = stations.value.find((station) => station.code === stationCode);
@@ -21,7 +30,7 @@ const onAfterSelectDevice: DeviceTreeProps['onAfterSelectDevice'] = (device, sta
 <template>
   <NLayout has-sider style="height: 100%">
     <NLayoutSider bordered :width="600" :collapsed-width="0" show-trigger="bar">
-      <DeviceTree :events="['select', 'manage']" :sync-route="true" :device-prefix-label="'查看'" @after-select-device="onAfterSelectDevice" />
+      <DeviceTree :events="['select', 'manage']" :sync-route="true" :device-prefix-label="'查看'" @expose-select-device-fn="onExposeSelectDeviceFn" @after-select-device="onAfterSelectDevice" />
     </NLayoutSider>
     <NLayoutContent :content-style="{ padding: '8px 8px 8px 24px' }">
       <template v-if="selectedStation && selectedDevice">