diff --git a/bin/script/send_modbus_and_register.py b/bin/script/send_modbus_and_register.py
index 5cd70dea..7eea8590 100644
--- a/bin/script/send_modbus_and_register.py
+++ b/bin/script/send_modbus_and_register.py
@@ -6,15 +6,17 @@ from binascii import unhexlify
 TARGET_HOST = 'localhost'   # 请根据实际情况修改
 TARGET_PORT = 8888          # 请根据实际情况修改
 
-# 元数组 modbus 指令
+# 元数组 modbus 指令  DEF7B23FD985  D9C6983D30F8
 MODBUS_DATA_HEX = (
- "7e80DCDC9891706E7e",
- "0103204135317841ab8e39bf27bccd3f1fb19ac2b231bbc0b6f82040ae3207c3f9f80efa23",
-  "020320413b9fa441acd34dc0024a003fa2a59ac2af34a0c18e17ea413167dbc3f9c7fe6d40",
-  "0303204139565641ab21ddbff6af333fe26800c2aec626c18685244176ee82c3f9bd7568c8",
- "040320413a0d3e41a534d3bf461ccd403d7e00c2ade1e4c0d819c441ce9ca7c3f9a4d260bf"
+ "7e80DEF7B23FD9857e"
+  "04031c41aa0c7941d78000402000220000000042b121523fb1fb373eb5668c4CDA",
+  "05031c419b24c741e18000400bf3910000000042a83e6840824127c08779583613",
+  "06031c418eb64a41cb00003ff8d8130000000042aaaa05bf95093cc090a1de5801"
+
 )
 
+
+
 # 重要-四川远德MQTT推送 （倾角计）
 #  "7e803042593632517e",
 #  "01033041011b7b0000000041eaafb742d19bd74513d545450dd9a4450ec53d00000000420ccf64420c74a9420c74a9c2d200009d99"
@@ -28,6 +30,10 @@ MODBUS_DATA_HEX = (
 # "01031c41aa0c7941d78000402000220000000042b121523fb1fb373eb5668c9cd8",
 # "02031c419b24c741e18000400bf3910000000042a83e6840824127c0877958c7d0",
 # "03031c418eb64a41cb00003ff8d8130000000042aaaa05bf95093cc090a1de8803"
+# "04031c41aa0c7941d78000402000220000000042b121523fb1fb373eb5668c4CDA",
+# "05031c419b24c741e18000400bf3910000000042a83e6840824127c08779583613",
+# "06031c418eb64a41cb00003ff8d8130000000042aaaa05bf95093cc090a1de5801"
+
 # 01        03      1c      4268 442f 41d3 0000 418b 6685 0000 0000 4026 f4ca c00d 1fd3 c2ad 2a9d 6311
 # 从机地址   功能码   字节长度  2个字节                                                               CRC校验
 
diff --git a/fastbee-open-api/src/main/java/com/fastbee/controller/platform/PlatformDeviceMappingController.java b/fastbee-open-api/src/main/java/com/fastbee/controller/platform/PlatformDeviceMappingController.java
index 306bae39..23dd647f 100644
--- a/fastbee-open-api/src/main/java/com/fastbee/controller/platform/PlatformDeviceMappingController.java
+++ b/fastbee-open-api/src/main/java/com/fastbee/controller/platform/PlatformDeviceMappingController.java
@@ -73,6 +73,14 @@ public class PlatformDeviceMappingController extends BaseController {
         return success("入网成功");
     }
 
+    @PreAuthorize("@ss.hasAnyPermi('platform:deviceMapping:query,platform:deviceMapping:list')")
+    @GetMapping("/static-level/reference-points")
+    @ApiOperation("查询已配置的静力水准基准点（跨网关基准点下拉框数据源）")
+    public AjaxResult listStaticLevelReferencePoints(@RequestParam Long platformId,
+                                                     @RequestParam(required = false) Long excludeMappingId) {
+        return success(mappingService.listConfiguredReferencePoints(platformId, excludeMappingId));
+    }
+
     // ==================== 子映射管理 ====================
 
     @PreAuthorize("@ss.hasAnyPermi('platform:deviceMapping:query,platform:deviceMapping:list')")
diff --git a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/adapter/dcp/DcpPlatformAdapter.java b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/adapter/dcp/DcpPlatformAdapter.java
index 45c97e4f..696c0eb7 100644
--- a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/adapter/dcp/DcpPlatformAdapter.java
+++ b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/adapter/dcp/DcpPlatformAdapter.java
@@ -18,6 +18,7 @@ import com.fastbee.iot.platform.flow.FlowContext;
 import com.fastbee.iot.platform.model.json.*;
 import com.fastbee.iot.platform.flow.PlatformFlowExecutor;
 import com.fastbee.iot.platform.mapper.PlatformFlowMapper;
+import com.fastbee.iot.platform.mapper.PlatformDeviceMappingMapper;
 import com.fastbee.iot.platform.mapper.PlatformInterfaceMapper;
 import com.fastbee.iot.platform.mapper.PlatformUserAuthMapper;
 import com.fastbee.iot.platform.service.IPlatformDeviceSubMappingService;
@@ -35,6 +36,7 @@ import java.time.OffsetDateTime;
 import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
@@ -69,6 +71,8 @@ public class DcpPlatformAdapter {
     private PlatformInterfaceMapper interfaceMapper;
     @Autowired
     private PlatformUserAuthMapper platformUserAuthMapper;
+    @Autowired
+    private PlatformDeviceMappingMapper mappingMapper;
 
     @Autowired
     private IPlatformInstanceService instanceService;
@@ -198,7 +202,10 @@ public class DcpPlatformAdapter {
                 bufferService.saveReferenceData(platform.getId(), fieldName, reportSerialNumber, currentItem, reportIntervalSec);
                 int replayCount = replayPendingMonitorData(platform, userAuth, mapping, fieldName, currentItem,
                         reportIntervalSec, baseUrl, interfaceCode);
-                log.info("[DCP] 基准点 {} 已缓存，补推监测点 {} 条", reportSerialNumber, replayCount);
+                int crossCount = replaySiblingGatewayMonitors(platform, userAuth, mapping, fieldName, currentItem,
+                        reportIntervalSec, reportSerialNumber);
+                log.info("[DCP] 基准点 {} 已缓存，补推监测点 {} 条（其中跨网关 {} 条）",
+                        reportSerialNumber, replayCount + crossCount, crossCount);
                 return;
             }
 
@@ -294,8 +301,15 @@ public class DcpPlatformAdapter {
         throw new RuntimeException("不支持的数组组包模式 arrayMode=" + mode);
     }
 
-    /** 解析基准点序列号 */
+    /** 解析基准点序列号：跨网关配置 > 本网关基准点行 > onboard_config > 网关序列号 */
     private String resolveRefSerialNumber(PlatformDeviceSubMapping subMapping, PlatformDeviceMapping mapping) {
+        // 跨网关基准点：前端在下拉框中选择的、属于其他网关的基准点序列号
+        ExtraMappingConfig extra = mapping.getExtraMappingParsed();
+        if (extra != null && extra.getStaticLevel() != null
+                && StringUtils.hasText(extra.getStaticLevel().getReferenceSerialNumber())) {
+            return extra.getStaticLevel().getReferenceSerialNumber();
+        }
+
         try {
             PlatformDeviceSubMapping reference = subMappingService.findReference(mapping.getId());
             if (reference != null && StringUtils.hasText(reference.getSubSerialNumber())) {
@@ -315,17 +329,69 @@ public class DcpPlatformAdapter {
     }
 
     /**
-     * 基准点后到时，补推此前缓存的监测点数据。
+     * 基准点后到时，补推此前缓存的监测点数据（本网关 + 引用该基准点的其他网关）。
      */
     private int replayPendingMonitorData(PlatformInstance platform, PlatformUserAuth userAuth,PlatformDeviceMapping mapping,
                                          String fieldName, JSONObject referenceItem,
                                          int reportIntervalSec, String baseUrl, String interfaceCode) {
+        return replayMonitorsOfMapping(platform, userAuth, mapping, fieldName, referenceItem,
+                reportIntervalSec, baseUrl, interfaceCode);
+    }
+
+    /**
+     * 跨网关补推：基准点上报后，补推其他网关中引用该基准点、且已缓存等待的监测点。
+     *
+     * @param refSerialNumber 本次上报的基准点序列号
+     */
+    private int replaySiblingGatewayMonitors(PlatformInstance platform, PlatformUserAuth userAuth,
+                                             PlatformDeviceMapping refMapping, String fieldName,
+                                             JSONObject referenceItem, int reportIntervalSec,
+                                             String refSerialNumber) {
+        List<PlatformDeviceMapping> siblings = mappingMapper.selectList(Wrappers.<PlatformDeviceMapping>lambdaQuery()
+                .eq(PlatformDeviceMapping::getPlatformId, platform.getId())
+                .ne(PlatformDeviceMapping::getId, refMapping.getId())
+                .eq(PlatformDeviceMapping::getSensorType, "static_level")
+                .eq(PlatformDeviceMapping::getDeviceType, 1)
+                .eq(PlatformDeviceMapping::getNetStatus, 1));
+        if (siblings == null || siblings.isEmpty()) {
+            return 0;
+        }
+
+        int replayCount = 0;
+        for (PlatformDeviceMapping sibling : siblings) {
+            // 仅处理配置了跨网关基准点、且指向本次上报基准点的网关
+            ExtraMappingConfig extra = sibling.getExtraMappingParsed();
+            if (extra == null || extra.getStaticLevel() == null
+                    || !refSerialNumber.equals(extra.getStaticLevel().getReferenceSerialNumber())) {
+                continue;
+            }
+            PlatformInterface pushInterface = interfaceMapper.selectById(sibling.getPushInterfaceId());
+            if (pushInterface == null) {
+                log.warn("[DCP] 跨网关补推跳过：网关 {} 未配置推送接口", sibling.getSerialNumber());
+                continue;
+            }
+            String baseUrl = platform.getBaseUrl() + resolvePushPath(sibling, pushInterface);
+            String interfaceCode = resolveInterfaceCode(sibling.getSensorType(), pushInterface);
+            replayCount += replayMonitorsOfMapping(platform, userAuth, sibling, fieldName, referenceItem,
+                    reportIntervalSec, baseUrl, interfaceCode);
+        }
+        return replayCount;
+    }
+
+    /**
+     * 补推指定网关下所有已缓存的监测点：合并为一次 HTTP 请求推送，
+     * 全部成功才清空缓存，失败则整批保留缓存等待下次基准点上报。
+     */
+    private int replayMonitorsOfMapping(PlatformInstance platform, PlatformUserAuth userAuth, PlatformDeviceMapping mapping,
+                                        String fieldName, JSONObject referenceItem,
+                                        int reportIntervalSec, String baseUrl, String interfaceCode) {
         List<PlatformDeviceSubMapping> subMappings = subMappingService.selectByParentId(mapping.getId());
         if (subMappings == null || subMappings.isEmpty()) {
             return 0;
         }
 
-        int replayCount = 0;
+        JSONArray pushBodyArray = new JSONArray();
+        List<String> pushedSerials = new ArrayList<>();
         for (PlatformDeviceSubMapping monitor : subMappings) {
             if (monitor == null || !monitor.isMonitor() || !StringUtils.hasText(monitor.getSubSerialNumber())) {
                 continue;
@@ -353,23 +419,32 @@ public class DcpPlatformAdapter {
             JSONArray sensorData = new JSONArray();
             sensorData.add(referenceItem);
             sensorData.add(monitorItem);
-            JSONArray pushBody = buildArrayPushBody(mapping, bodyFields, fieldName,
+            JSONArray deviceBodyArr = buildArrayPushBody(mapping, bodyFields, fieldName,
                     sensorData, monitor.getPlatformDeviceId());
-
-            PlatformPushLog logEntry = createLogEntry(platform, mapping, interfaceCode, monitor.getSubSerialNumber());
-            doHttpPost(platform, userAuth, mapping, baseUrl, JSON.toJSONString(pushBody), logEntry);
-            pushLogService.asyncSave(logEntry);
-            if (logEntry.getStatus() != null && logEntry.getStatus() == 1) {
-                bufferService.removeMonitorData(platform.getId(), fieldName, monitor.getSubSerialNumber());
-                replayCount++;
-                log.info("[DCP] 基准点后到，已补推监测点 {} deviceId={}",
-                        monitor.getSubSerialNumber(), monitor.getPlatformDeviceId());
-            } else {
-                log.warn("[DCP] 基准点后到，补推监测点 {} 失败，保留缓存等待下次基准点上报",
-                        monitor.getSubSerialNumber());
+            if (!deviceBodyArr.isEmpty()) {
+                pushBodyArray.add(deviceBodyArr.get(0));
+                pushedSerials.add(monitor.getSubSerialNumber());
             }
         }
-        return replayCount;
+
+        if (pushBodyArray.isEmpty()) {
+            return 0;
+        }
+
+        PlatformPushLog logEntry = createLogEntry(platform, mapping, interfaceCode, mapping.getSerialNumber());
+        doHttpPost(platform, userAuth, mapping, baseUrl, JSON.toJSONString(pushBodyArray), logEntry);
+        pushLogService.asyncSave(logEntry);
+
+        if (logEntry.getStatus() != null && logEntry.getStatus() == 1) {
+            pushedSerials.forEach(serial -> bufferService.removeMonitorData(platform.getId(), fieldName, serial));
+            log.info("[DCP] 基准点后到，已合并补推监测点 {} 条 mappingId={} 序列号={}",
+                    pushedSerials.size(), mapping.getId(), String.join(",", pushedSerials));
+            return pushedSerials.size();
+        }
+
+        log.warn("[DCP] 基准点后到，合并补推 {} 条失败，整批保留缓存等待下次基准点上报 mappingId={}",
+                pushedSerials.size(), mapping.getId());
+        return 0;
     }
 
     // ==================== 普通推送 ====================
diff --git a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/job/PlatformPushScheduledJob.java b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/job/PlatformPushScheduledJob.java
index 14835bf0..4f45c1e5 100644
--- a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/job/PlatformPushScheduledJob.java
+++ b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/job/PlatformPushScheduledJob.java
@@ -223,7 +223,12 @@ public class PlatformPushScheduledJob {
         }
 
         for (PlatformDeviceSubMapping subMapping : subMappings) {
-            if (subMapping == null || subMapping.getPlatformDeviceId() == null) {
+            if (subMapping == null) {
+                continue;
+            }
+            // 基准点本身不单独推送（无平台设备ID），但仍需进入推送入口以刷新基准点缓冲，
+            // 否则跨网关/同网关的监测点配对时读不到新鲜基准点数据
+            if (subMapping.getPlatformDeviceId() == null && !subMapping.isReference()) {
                 continue;
             }
             try {
diff --git a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/service/IPlatformDeviceMappingService.java b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/service/IPlatformDeviceMappingService.java
index eac312ab..52671d99 100644
--- a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/service/IPlatformDeviceMappingService.java
+++ b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/service/IPlatformDeviceMappingService.java
@@ -5,6 +5,7 @@ import com.fastbee.iot.platform.domain.PlatformDeviceMapping;
 
 import java.util.Date;
 import java.util.List;
+import java.util.Map;
 
 public interface IPlatformDeviceMappingService extends IService<PlatformDeviceMapping> {
 
@@ -18,4 +19,11 @@ public interface IPlatformDeviceMappingService extends IService<PlatformDeviceMa
 
     /** 更新最近已推送数据时间 */
     void updateLastPushTime(Long id, Date lastPushTime);
+
+    /**
+     * 查询已配置的静力水准基准点列表（跨网关基准点下拉框数据源）。
+     * 范围：同平台下 sensorType=static_level 的网关绑定，排除 excludeMappingId 自身，
+     * 取其子映射中 deviceRole=reference 的行。
+     */
+    List<Map<String, String>> listConfiguredReferencePoints(Long platformId, Long excludeMappingId);
 }
diff --git a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/service/impl/PlatformDeviceMappingServiceImpl.java b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/service/impl/PlatformDeviceMappingServiceImpl.java
index 895a1e54..7272aa7f 100644
--- a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/service/impl/PlatformDeviceMappingServiceImpl.java
+++ b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/service/impl/PlatformDeviceMappingServiceImpl.java
@@ -12,6 +12,8 @@ import com.fastbee.iot.platform.mapper.PlatformDeviceMappingMapper;
 import com.fastbee.iot.platform.mapper.PlatformFlowMapper;
 import com.fastbee.iot.platform.mapper.PlatformInstanceMapper;
 import com.fastbee.iot.platform.mapper.PlatformUserAuthMapper;
+import com.fastbee.iot.platform.model.json.ExtraMappingConfig;
+import com.fastbee.iot.platform.model.json.OnboardConfig;
 import com.fastbee.iot.platform.service.IPlatformDeviceMappingService;
 import com.fastbee.iot.platform.service.IPlatformDeviceSubMappingService;
 import com.fastbee.iot.platform.service.IPlatformUserAuthService;
@@ -221,13 +223,30 @@ public class PlatformDeviceMappingServiceImpl extends ServiceImpl<PlatformDevice
         }
         if (references.isEmpty()) {
             if (staticLevel) {
-                throw new RuntimeException("静力水准网关入网需在子设备映射中指定一个基准点");
+                // 允许跨网关基准点：extra_mapping.staticLevel.referenceSerialNumber 指向其他网关的基准点
+                ExtraMappingConfig extra = mapping.getExtraMappingParsed();
+                if (extra != null && extra.getStaticLevel() != null
+                        && StringUtils.hasText(extra.getStaticLevel().getReferenceSerialNumber())) {
+                    log.info("网关 {} 使用跨网关基准点 {}", mapping.getSerialNumber(),
+                            extra.getStaticLevel().getReferenceSerialNumber());
+                    return null;
+                }
+                throw new RuntimeException("静力水准网关入网需在子设备映射中指定一个基准点，或在扩展配置中选择跨网关基准点");
             }
             return null;
         }
         return references.get(0);
     }
 
+    /** 子设备 sensorId：取 onboard_config.sensorId，缺失时回退序列号 */
+    private String resolveSubSensorId(PlatformDeviceSubMapping sub) {
+        OnboardConfig config = sub.getOnboardConfigParsed();
+        if (config != null && StringUtils.hasText(config.getSensorId())) {
+            return config.getSensorId();
+        }
+        return sub.getSubSerialNumber();
+    }
+
     @Override
     public void updateLastPushTime(Long id, Date lastPushTime) {
         PlatformDeviceMapping mapping = new PlatformDeviceMapping();
@@ -235,4 +254,35 @@ public class PlatformDeviceMappingServiceImpl extends ServiceImpl<PlatformDevice
         mapping.setLastPushTime(lastPushTime);
         this.updateById(mapping);
     }
+
+    @Override
+    public List<Map<String, String>> listConfiguredReferencePoints(Long platformId, Long excludeMappingId) {
+        List<PlatformDeviceMapping> gateways = this.list(Wrappers.<PlatformDeviceMapping>lambdaQuery()
+                .eq(platformId != null, PlatformDeviceMapping::getPlatformId, platformId)
+                .ne(excludeMappingId != null, PlatformDeviceMapping::getId, excludeMappingId)
+                .eq(PlatformDeviceMapping::getSensorType, "static_level")
+                .eq(PlatformDeviceMapping::getDeviceType, 1));
+        List<Map<String, String>> result = new ArrayList<>();
+        for (PlatformDeviceMapping gateway : gateways) {
+            List<PlatformDeviceSubMapping> subs = subMappingService.selectByParentId(gateway.getId());
+            if (subs == null) {
+                continue;
+            }
+            for (PlatformDeviceSubMapping sub : subs) {
+                if (sub == null || !sub.isReference() || !StringUtils.hasText(sub.getSubSerialNumber())) {
+                    continue;
+                }
+                Map<String, String> item = new java.util.LinkedHashMap<>();
+                item.put("referenceSerialNumber", sub.getSubSerialNumber());
+                item.put("referenceDeviceName", sub.getSubDeviceName());
+                // 供前端生成监测点入网参数 refSensorId，保持与历史数据一致
+                item.put("referenceSensorId", resolveSubSensorId(sub));
+                item.put("gatewaySerialNumber", gateway.getSerialNumber());
+                item.put("gatewayDeviceName", StringUtils.hasText(gateway.getDeviceName())
+                        ? gateway.getDeviceName() : gateway.getSerialNumber());
+                result.add(item);
+            }
+        }
+        return result;
+    }
 }
diff --git a/yack-web/src/api/platform/deviceMapping.js b/yack-web/src/api/platform/deviceMapping.js
index 920f19e4..064ec002 100644
--- a/yack-web/src/api/platform/deviceMapping.js
+++ b/yack-web/src/api/platform/deviceMapping.js
@@ -36,3 +36,8 @@ export function listSubMappingsBatch(parentIds) {
 export function syncSubMappings(parentId, data) {
   return request({ url: `/platform/device-mapping/${parentId}/sub-mappings`, method: 'post', data })
 }
+
+// 查询已配置的静力水准基准点（跨网关基准点下拉框数据源）
+export function listStaticLevelReferencePoints(params) {
+  return request({ url: '/platform/device-mapping/static-level/reference-points', method: 'get', params })
+}
diff --git a/yack-web/src/views/platform/device-mapping/index.vue b/yack-web/src/views/platform/device-mapping/index.vue
index 2a4aaa49..6f3814d6 100644
--- a/yack-web/src/views/platform/device-mapping/index.vue
+++ b/yack-web/src/views/platform/device-mapping/index.vue
@@ -284,6 +284,17 @@
           <el-form-item label="上报间隔" label-width="100px" style="margin-top:12px;margin-bottom:0">
             <el-input-number v-model="form.reportIntervalSec" :min="10" :max="3600" :step="10" style="width:160px" /> 秒
           </el-form-item>
+          <el-form-item v-if="form.sensorType === 'static_level'" label="跨网关基准点" label-width="100px" style="margin-top:12px;margin-bottom:0">
+            <el-select v-model="form.crossGatewayRefSerial" clearable filterable
+              placeholder="选择其他网关已配置的基准点" style="width:100%;max-width:420px" @change="onCrossGatewayRefChange">
+              <el-option v-for="refItem in referenceOptions" :key="refItem.referenceSerialNumber"
+                :label="`${refItem.referenceSerialNumber}（网关：${refItem.gatewayDeviceName}）`"
+                :value="refItem.referenceSerialNumber" />
+            </el-select>
+            <div style="font-size:12px;color:#909399;margin-top:4px">
+              本网关子设备全部为监测点时使用：选择其他网关已配置的基准点后，本网关子设备无需再指定基准点。
+            </div>
+          </el-form-item>
           <el-form-item v-if="itemFieldMappingRows.length > 0" label="数组项映射" label-width="100px" style="margin-top:12px;margin-bottom:0">
             <el-table :data="itemFieldMappingRows" size="mini" border style="width:100%">
               <el-table-column label="平台字段" width="140">
@@ -335,7 +346,7 @@
 </template>
 
 <script>
-import { listPlatformDeviceMapping, addPlatformDeviceMapping, updatePlatformDeviceMapping, delPlatformDeviceMapping, onboardDevice, listSubMappings, listSubMappingsBatch, syncSubMappings } from '@/api/platform/deviceMapping'
+import { listPlatformDeviceMapping, addPlatformDeviceMapping, updatePlatformDeviceMapping, delPlatformDeviceMapping, onboardDevice, listSubMappings, listSubMappingsBatch, syncSubMappings, listStaticLevelReferencePoints } from '@/api/platform/deviceMapping'
 import { listPlatformInstance } from '@/api/platform/instance'
 import { getInitializedUsers, getProjectsByUserAuthId } from '@/api/platform/userAuth'
 import { listPlatformInterface } from '@/api/platform/interface'
@@ -363,6 +374,8 @@ export default {
       subMappingRows: [],
       // 网关数据映射
       itemFieldMappingRows: [],
+      // 跨网关基准点下拉选项（static_level 专用）
+      referenceOptions: [],
       // 子表缓存 (列表展开行使用)
       subMappingCache: {},
       sensorTypeDictOptions: [],
@@ -467,11 +480,12 @@ export default {
       this.form = {
         enable: '1', deviceType: 0, pushInterfaceId: null, pushMode: 1, pushInterval: 5, reportIntervalSec: 300, deviceName: '',
         platformId: null, platformUserAuthId: null, platformProjectId: null, platformProjectName: '',
-        deviceId: null, serialNumber: '', sensorType: '', remark: ''
+        deviceId: null, serialNumber: '', sensorType: '', remark: '', crossGatewayRefSerial: null
       }
       this.fieldMappingRows = []
       this.subMappingRows = []
       this.itemFieldMappingRows = []
+      this.referenceOptions = []
       this.deviceOptions = []
       this.subDeviceOptions = []
       this.thingsModelOptions = []
@@ -481,22 +495,27 @@ export default {
       this.title = '新增设备绑定'; this.open = true
     },
     handleUpdate(row) {
-      this.form = { ...row, deviceName: row.deviceName || '', pushMode: row.pushMode || 1, pushInterval: row.pushInterval || 5, reportIntervalSec: 300 }
+      this.form = { ...row, deviceName: row.deviceName || '', pushMode: row.pushMode || 1, pushInterval: row.pushInterval || 5, reportIntervalSec: 300, crossGatewayRefSerial: null }
       this.fieldMappingRows = this.safeParseJson(row.fieldMapping, [])
       this.subMappingRows = []
       this.itemFieldMappingRows = []
+      this.referenceOptions = []
       // 解析 extra_mapping 中的数据映射配置
       if (row.extraMapping) {
         try {
           const extra = JSON.parse(row.extraMapping)
           this.form.reportIntervalSec = extra.reportIntervalSec || 300
           this.itemFieldMappingRows = extra.itemFieldMappings || []
+          if (extra.staticLevel && extra.staticLevel.referenceSerialNumber) {
+            this.form.crossGatewayRefSerial = extra.staticLevel.referenceSerialNumber
+          }
         } catch (e) { /* ignore */ }
       }
       // 加载该平台的接口列表和用户列表
       if (row.platformId) {
         this.loadInterfaces(row.platformId)
         this.loadInitializedUsers(row.platformId)
+        this.loadReferenceOptions(row.platformId, row.id)
       }
       // 加载用户的项目列表
       if (row.platformUserAuthId) {
@@ -541,9 +560,12 @@ export default {
       this.projectOptions = []
       this.form.platformProjectId = null
       this.form.platformProjectName = ''
+      this.referenceOptions = []
+      this.form.crossGatewayRefSerial = null
       if (platformId) {
         this.loadInterfaces(platformId)
         this.loadInitializedUsers(platformId)
+        this.loadReferenceOptions(platformId, this.form.id)
       }
     },
     loadInitializedUsers(platformId) {
@@ -552,6 +574,13 @@ export default {
         this.initializedUserList = res.data || []
       }).catch(() => { this.initializedUserList = [] })
     },
+    // 加载同平台其他静力水准网关已配置的基准点（跨网关基准点下拉框数据源）
+    loadReferenceOptions(platformId, excludeMappingId) {
+      if (!platformId) { this.referenceOptions = []; return }
+      listStaticLevelReferencePoints({ platformId, excludeMappingId: excludeMappingId || undefined }).then(res => {
+        this.referenceOptions = res.data || []
+      }).catch(() => { this.referenceOptions = [] })
+    },
     onUserAuthChange(userAuthId) {
       this.projectOptions = []
       this.form.platformProjectId = null
@@ -776,7 +805,17 @@ export default {
       if (this.form.sensorType === 'deep_inclino') this.refreshOnboardConfig()
     },
     findReferenceRow(rows = this.subMappingRows) {
-      return (rows || []).find(r => r.deviceRole === 'reference' && r.subSerialNumber)
+      return (rows || []).find(r => r.deviceRole === 'reference' && r.subSerialNumber) || this.crossGatewayRefRow()
+    },
+    // 跨网关基准点（由下拉框选择，不在子表中）构造为虚拟基准点行，用于生成监测点入网参数
+    crossGatewayRefRow() {
+      if (this.form.sensorType !== 'static_level' || !this.form.crossGatewayRefSerial) return null
+      const option = this.referenceOptions.find(o => o.referenceSerialNumber === this.form.crossGatewayRefSerial)
+      const sensorId = (option && option.referenceSensorId) || this.form.crossGatewayRefSerial
+      return { subSerialNumber: this.form.crossGatewayRefSerial, onboardConfig: JSON.stringify({ sensorId }) }
+    },
+    onCrossGatewayRefChange() {
+      this.refreshSubMappingOnboardConfigs()
     },
     buildOnboardConfig(row, refRow) {
       const config = this.safeParseJson(row.onboardConfig, {})
@@ -846,9 +885,16 @@ export default {
         this.$modal.msgError('只能指定一个基准点')
         return null
       }
-      if (this.form.sensorType === 'static_level' && (references.length !== 1 || monitors.length === 0)) {
-        this.$modal.msgError('静力水准需配置 1 个基准点和至少 1 个监测点')
-        return null
+      if (this.form.sensorType === 'static_level') {
+        const hasCrossRef = !!this.form.crossGatewayRefSerial
+        if (hasCrossRef && references.length === 1) {
+          this.$modal.msgError('已选择跨网关基准点，子设备中不能再指定基准点')
+          return null
+        }
+        if ((references.length !== 1 && !hasCrossRef) || monitors.length === 0) {
+          this.$modal.msgError('静力水准需配置 1 个基准点（或选择跨网关基准点）和至少 1 个监测点')
+          return null
+        }
       }
       if (this.form.sensorType === 'deep_inclino') {
         if (monitors.length === 0) {
@@ -861,7 +907,7 @@ export default {
           return null
         }
       }
-      const refRow = references[0] || null
+      const refRow = references[0] || this.crossGatewayRefRow()
       return rows.map(row => {
         const onboardConfig = this.safeParseJson(this.buildOnboardConfig(row, refRow), {})
         if (this.form.sensorType === 'deep_inclino' && row.deviceRole === 'monitor') {
@@ -904,7 +950,10 @@ export default {
         if (this.form.deviceType === 1) {
           this.form.extraMapping = JSON.stringify({
             reportIntervalSec: this.form.reportIntervalSec || 300,
-            itemFieldMappings: this.itemFieldMappingRows.filter(im => im.identifier)
+            itemFieldMappings: this.itemFieldMappingRows.filter(im => im.identifier),
+            staticLevel: this.form.crossGatewayRefSerial
+              ? { referenceSerialNumber: this.form.crossGatewayRefSerial }
+              : undefined
           })
         } else {
           this.form.extraMapping = null