diff --git a/bin/send_modbus_and_register.py b/bin/send_modbus_and_register.py
index a0bfe35f..3f9626c1 100644
--- a/bin/send_modbus_and_register.py
+++ b/bin/send_modbus_and_register.py
@@ -8,12 +8,14 @@ TARGET_PORT = 8888          # 请根据实际情况修改
 
 # 元数组 modbus 指令
 MODBUS_DATA_HEX = (
-"7e80D55746B29F687e",
-"010310c07ffffe45217c3d41dfe9964140686641f4"
+"7e80D21F6C448E8D7e",
+ "01031c41b6dcec418b0000402d2148000000004017e0b8400c19efc2ad8a8acb2b",
+ "02031c41babecc419d8000402be3560000000040137c30bfb2f4d0c2ae9bc1b582",
+ "03031c41bd1c1941810000402bb38600000000bf4501bdc027dfcac2ae8853eaef",
+ "04031c41babecc419d8000402be3560000000040137c30bfb2f4d0c2ae9bc1D581",
+ "05031c41bd1c1941810000402bb38600000000bf4501bdc027dfcac2ae88538AEC"
 )
-# "01031c4268442f41d30000418b6685000000004026f4cac00d1fd3c2ad2a9d6311",
-#  "02031c42488fd041c5800041865ab7000000003f364458c03f765ec2add9722da5",
-#  "03031c42ffdad541c78000421529b8000000003d5f38f94082080dc2abdf4f1f94"
+
 # 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
 
@@ -45,7 +47,7 @@ def main():
 
                 # 2. 等待0.5秒
                 print("等待 0.1 秒...")
-                time.sleep(0.5)
+                time.sleep(1)
 
             # （可选）接收最终响应
             try:
diff --git a/fastbee-common/src/main/java/com/fastbee/common/utils/gateway/CRC16Utils.java b/fastbee-common/src/main/java/com/fastbee/common/utils/gateway/CRC16Utils.java
index 51525bcc..f0fdc6ae 100644
--- a/fastbee-common/src/main/java/com/fastbee/common/utils/gateway/CRC16Utils.java
+++ b/fastbee-common/src/main/java/com/fastbee/common/utils/gateway/CRC16Utils.java
@@ -133,7 +133,7 @@ public class CRC16Utils {
 
 
     public static void main(String[] args) throws Exception {
-        String hex = "0103028000";
+        String hex = "006000000000";
         byte[] bytes = ByteUtils.hexToByte(hex);
         String crc = getCRC(bytes);
         System.out.println(crc);
diff --git a/fastbee-common/src/main/java/com/fastbee/common/utils/gateway/protocol/ByteUtils.java b/fastbee-common/src/main/java/com/fastbee/common/utils/gateway/protocol/ByteUtils.java
index c8e0a69a..c6ce73e0 100644
--- a/fastbee-common/src/main/java/com/fastbee/common/utils/gateway/protocol/ByteUtils.java
+++ b/fastbee-common/src/main/java/com/fastbee/common/utils/gateway/protocol/ByteUtils.java
@@ -303,9 +303,9 @@ public class ByteUtils {
         return data.getBytes(charset);
     }
 
-    /*
+    /**
      * 把16进制字符串转换成字节数组
-     * @param hex
+     * @param hexStr 16进制字符
      * @return
      */
     public static byte[] hexToByte(String hexStr) {
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 635167e4..1ad9b427 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
@@ -19,6 +19,7 @@ import com.fastbee.iot.platform.flow.FlowContext;
 import com.fastbee.iot.platform.flow.PlatformFlowExecutor;
 import com.fastbee.iot.platform.mapper.PlatformFlowMapper;
 import com.fastbee.iot.platform.mapper.PlatformInterfaceMapper;
+import com.fastbee.iot.platform.service.IPlatformDeviceSubMappingService;
 import com.fastbee.iot.platform.service.IPlatformInstanceService;
 import com.fastbee.iot.platform.service.IPlatformPushLogService;
 import lombok.extern.slf4j.Slf4j;
@@ -34,6 +35,7 @@ import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
 import java.util.Date;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
 /**
@@ -66,6 +68,8 @@ public class DcpPlatformAdapter {
     private StaticLevelBufferService bufferService;
     @Autowired
     private PlatformInterfaceMapper interfaceMapper;
+    @Autowired
+    private IPlatformDeviceSubMappingService subMappingService;
 
     /** 传感器类型 → 推送接口路径 */
     private static final Map<String, String> PUSH_PATH = new HashMap<>();
@@ -184,10 +188,12 @@ public class DcpPlatformAdapter {
             JSONObject currentBodyFields = buildObjectBySchema(platform, mapping, requestSchema, reportData, fieldMappings);
 
             if (subMapping.isReference()) {
-                // 基准点上报：仅缓存，不推送
+                // 基准点上报：缓存当前基准点，并补推此前已缓存的监测点
                 bufferService.saveReferenceData(
                         platform.getId(), fieldName, reportSerialNumber, currentItem, reportIntervalSec);
-                log.info("[DCP] 基准点 {} 已缓存，等待监测点上报", reportSerialNumber);
+                int replayCount = replayPendingMonitorData(platform, mapping, fieldName, currentItem,
+                        reportIntervalSec, baseUrl, interfaceCode);
+                log.info("[DCP] 基准点 {} 已缓存，补推监测点 {} 条", reportSerialNumber, replayCount);
                 return;
             }
 
@@ -198,7 +204,7 @@ public class DcpPlatformAdapter {
                 return;
             }
 
-            // 获取基准点序列号（从 onboard_config 中取 refSensorId 对应的原始序列号）
+            // 获取基准点序列号，优先使用子映射中当前标记的 reference 行
             String refSerialNumber = resolveRefSerialNumber(subMapping, mapping);
 
             JSONObject refData = bufferService.getReferenceDataIfFresh(
@@ -243,12 +249,18 @@ public class DcpPlatformAdapter {
         return false;
     }
 
-    /**
-     * 从子映射的 onboard_config 解析基准点序列号
-     */
+    /** 解析基准点序列号 */
     private String resolveRefSerialNumber(PlatformDeviceSubMapping subMapping, PlatformDeviceMapping mapping) {
-        // 从 onboard_config 取 refSensorId 对应的子设备序列号
-        // 通常基准点的 sensorId == 基准点的 serialNumber
+        try {
+            PlatformDeviceSubMapping reference = subMappingService.findReference(mapping.getId());
+            if (reference != null && StringUtils.hasText(reference.getSubSerialNumber())) {
+                return reference.getSubSerialNumber();
+            }
+        } catch (Exception e) {
+            log.warn("[DCP] 查询静力水准基准点失败 mappingId={}, error={}", mapping.getId(), e.getMessage());
+        }
+
+        // 兼容历史配置：从 onboard_config 取基准点原始序列号
         if (StringUtils.hasText(subMapping.getOnboardConfig())) {
             try {
                 JSONObject config = JSON.parseObject(subMapping.getOnboardConfig());
@@ -262,6 +274,67 @@ public class DcpPlatformAdapter {
         return mapping.getSerialNumber();
     }
 
+    /**
+     * 基准点后到时，补推此前缓存的监测点数据。
+     */
+    private int replayPendingMonitorData(PlatformInstance platform, 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;
+        for (PlatformDeviceSubMapping monitor : subMappings) {
+            if (monitor == null || !monitor.isMonitor()
+                    || !StringUtils.hasText(monitor.getSubSerialNumber())) {
+                continue;
+            }
+            JSONObject monitorData = bufferService.getMonitorDataIfFresh(
+                    platform.getId(), fieldName, monitor.getSubSerialNumber(), reportIntervalSec);
+            if (monitorData == null) {
+                continue;
+            }
+            if (!StringUtils.hasText(monitor.getPlatformDeviceId())) {
+                log.warn("[DCP] 监测点 {} 有缓存但未分配平台设备ID，暂不补推",
+                        monitor.getSubSerialNumber());
+                continue;
+            }
+
+            JSONObject monitorItem = monitorData.getJSONObject("itemData");
+            if (monitorItem == null || monitorItem.isEmpty()) {
+                bufferService.removeMonitorData(platform.getId(), fieldName, monitor.getSubSerialNumber());
+                continue;
+            }
+            JSONObject bodyFields = monitorData.getJSONObject("bodyFields");
+            if (bodyFields == null) {
+                bodyFields = new JSONObject();
+            }
+
+            JSONArray sensorData = new JSONArray();
+            sensorData.add(referenceItem);
+            sensorData.add(monitorItem);
+            JSONArray pushBody = buildArrayPushBody(mapping, bodyFields, fieldName,
+                    sensorData, monitor.getPlatformDeviceId());
+
+            PlatformPushLog logEntry = createLogEntry(platform, mapping, interfaceCode,
+                    monitor.getSubSerialNumber());
+            doHttpPost(platform, 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());
+            }
+        }
+        return replayCount;
+    }
+
     // ==================== 普通推送 ====================
 
     private void handleNormalPush(PlatformInstance platform, PlatformDeviceMapping mapping,
diff --git a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/flow/FlowContext.java b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/flow/FlowContext.java
index 9263bbe0..4dd879af 100644
--- a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/flow/FlowContext.java
+++ b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/flow/FlowContext.java
@@ -21,6 +21,10 @@ public class FlowContext {
     private String currentMonitorSerialNumber;
     /** 网关子设备入网时，当前子映射行的 onboard_config JSON（平台相关参数） */
     private String subMappingOnboardConfig;
+    /** 网关子设备入网时，当前基准点序列号 */
+    private String currentReferenceSerialNumber;
+    /** 网关子设备入网时，基准点子映射行的 onboard_config JSON */
+    private String referenceSubMappingOnboardConfig;
 
     public FlowContext(PlatformInstance platform, PlatformDeviceMapping deviceMapping, String payload) {
         this.platform = platform;
@@ -64,6 +68,22 @@ public class FlowContext {
         this.subMappingOnboardConfig = subMappingOnboardConfig;
     }
 
+    public String getCurrentReferenceSerialNumber() {
+        return currentReferenceSerialNumber;
+    }
+
+    public void setCurrentReferenceSerialNumber(String currentReferenceSerialNumber) {
+        this.currentReferenceSerialNumber = currentReferenceSerialNumber;
+    }
+
+    public String getReferenceSubMappingOnboardConfig() {
+        return referenceSubMappingOnboardConfig;
+    }
+
+    public void setReferenceSubMappingOnboardConfig(String referenceSubMappingOnboardConfig) {
+        this.referenceSubMappingOnboardConfig = referenceSubMappingOnboardConfig;
+    }
+
     @SuppressWarnings("unchecked")
     public Object getFromContext(String contextKey) {
         // contextKey 格式: "step1.access_token" 或 "step1"
diff --git a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/flow/PlatformFlowExecutor.java b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/flow/PlatformFlowExecutor.java
index f2e05633..546316d2 100644
--- a/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/flow/PlatformFlowExecutor.java
+++ b/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/platform/flow/PlatformFlowExecutor.java
@@ -429,6 +429,20 @@ public class PlatformFlowExecutor {
     }
 
     private List<String> collectSubDeviceSensorIds(FlowContext ctx) {
+        if (StringUtils.hasText(ctx.getCurrentMonitorSerialNumber())
+                && StringUtils.hasText(ctx.getCurrentReferenceSerialNumber())) {
+            String refSensorId = resolveOnboardSensorId(
+                    ctx.getReferenceSubMappingOnboardConfig(), ctx.getCurrentReferenceSerialNumber());
+            String monitorSensorId = resolveOnboardSensorId(
+                    ctx.getSubMappingOnboardConfig(), ctx.getCurrentMonitorSerialNumber());
+            List<String> ids = new ArrayList<>();
+            if (StringUtils.hasText(refSensorId)) ids.add(refSensorId);
+            if (StringUtils.hasText(monitorSensorId)) ids.add(monitorSensorId);
+            if (!ids.isEmpty()) {
+                return ids.stream().distinct().collect(Collectors.toList());
+            }
+        }
+
         // 网关入网时，从子表 onboard_config 获取 sensorId
         if (StringUtils.hasText(ctx.getSubMappingOnboardConfig())) {
             try {
@@ -450,10 +464,32 @@ public class PlatformFlowExecutor {
     }
 
     /**
-     * 网关入网时：从当前子映射的 onboard_config 取 [refSensorId, sensorId] 一对。
+     * 网关入网时：优先按子表中当前 reference 行取 [基准点sensorId, 监测点sensorId] 一对。
      * 直连设备/旧逻辑：从 extra_mapping 解析所有配对。
      */
     private List<List<String>> collectReferenceSubDeviceSensorIdPairs(FlowContext ctx) {
+        if (StringUtils.hasText(ctx.getCurrentMonitorSerialNumber())) {
+            String sensorId = resolveOnboardSensorId(
+                    ctx.getSubMappingOnboardConfig(), ctx.getCurrentMonitorSerialNumber());
+            String refSensorId = resolveOnboardSensorId(
+                    ctx.getReferenceSubMappingOnboardConfig(), ctx.getCurrentReferenceSerialNumber());
+            if (!StringUtils.hasText(refSensorId)) {
+                refSensorId = resolveOnboardConfigText(ctx.getSubMappingOnboardConfig(), "refSensorId");
+            }
+            if (StringUtils.hasText(sensorId) && StringUtils.hasText(refSensorId)) {
+                if (sameText(refSensorId, sensorId)) {
+                    throw new RuntimeException("静力水准 sensorIds 配置无效：基准点和监测点 sensorId 相同");
+                }
+                List<List<String>> pairs = new ArrayList<>();
+                pairs.add(Arrays.asList(refSensorId, sensorId));
+                return pairs;
+            }
+            if (isStaticLevel(ctx.getDeviceMapping())) {
+                throw new RuntimeException("静力水准监测点 " + ctx.getCurrentMonitorSerialNumber()
+                        + " 缺少基准点或监测点 sensorId，请检查子设备映射");
+            }
+        }
+
         // 网关入网：onboardConfig 已指定当前监测点
         if (StringUtils.hasText(ctx.getSubMappingOnboardConfig())) {
             try {
@@ -494,6 +530,27 @@ public class PlatformFlowExecutor {
         return pairs;
     }
 
+    private String resolveOnboardSensorId(String onboardConfig, String fallbackSerialNumber) {
+        String sensorId = resolveOnboardConfigText(onboardConfig, "sensorId");
+        return StringUtils.hasText(sensorId) ? sensorId : normalizeText(fallbackSerialNumber);
+    }
+
+    private String resolveOnboardConfigText(String onboardConfig, String field) {
+        if (!StringUtils.hasText(onboardConfig) || !StringUtils.hasText(field)) {
+            return null;
+        }
+        try {
+            JSONObject config = JSON.parseObject(onboardConfig);
+            return normalizeText(config.getString(field));
+        } catch (Exception ignored) {
+            return null;
+        }
+    }
+
+    private boolean isStaticLevel(PlatformDeviceMapping mapping) {
+        return mapping != null && Objects.equals("static_level", mapping.getSensorType());
+    }
+
     private List<SubDeviceSensorBinding> collectSubDeviceSensorBindings(PlatformDeviceMapping mapping) {
         if (mapping == null) {
             return Collections.emptyList();
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 9998485c..4cd95611 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
@@ -21,6 +21,7 @@ import org.springframework.util.StringUtils;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 import java.util.stream.Collectors;
 
 @Slf4j
@@ -105,6 +106,7 @@ public class PlatformDeviceMappingServiceImpl extends ServiceImpl<PlatformDevice
      */
     private void onboardGateway(PlatformDeviceMapping mapping, PlatformInstance platform, PlatformFlow onboardFlow) {
         List<PlatformDeviceSubMapping> subMappings = subMappingService.selectByParentId(mapping.getId());
+        PlatformDeviceSubMapping reference = resolveGatewayReference(mapping, subMappings);
         List<PlatformDeviceSubMapping> monitors = subMappings.stream()
                 .filter(s -> s.isMonitor() && (s.getNetStatus() == null || s.getNetStatus() == 0))
                 .collect(Collectors.toList());
@@ -120,6 +122,10 @@ public class PlatformDeviceMappingServiceImpl extends ServiceImpl<PlatformDevice
             FlowContext ctx = new FlowContext(platform, mapping, null);
             ctx.setCurrentMonitorSerialNumber(monitor.getSubSerialNumber());
             ctx.setSubMappingOnboardConfig(monitor.getOnboardConfig());
+            if (reference != null) {
+                ctx.setCurrentReferenceSerialNumber(reference.getSubSerialNumber());
+                ctx.setReferenceSubMappingOnboardConfig(reference.getOnboardConfig());
+            }
 
             try {
                 flowExecutor.execute(onboardFlow, ctx);
@@ -165,4 +171,22 @@ public class PlatformDeviceMappingServiceImpl extends ServiceImpl<PlatformDevice
                     + String.join("\n", failedMessages));
         }
     }
+
+    private PlatformDeviceSubMapping resolveGatewayReference(PlatformDeviceMapping mapping,
+                                                             List<PlatformDeviceSubMapping> subMappings) {
+        List<PlatformDeviceSubMapping> references = subMappings.stream()
+                .filter(PlatformDeviceSubMapping::isReference)
+                .collect(Collectors.toList());
+        boolean staticLevel = Objects.equals("static_level", mapping.getSensorType());
+        if (references.size() > 1) {
+            throw new RuntimeException("子表中只能指定一个基准点，请检查子设备映射");
+        }
+        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");
+            }
+            return null;
+        }
+        return references.get(0);
+    }
 }
diff --git a/fastbee-service/fastbee-iot-service/src/main/resources/mapper/iot/platform/PlatformDeviceSubMappingMapper.xml b/fastbee-service/fastbee-iot-service/src/main/resources/mapper/iot/platform/PlatformDeviceSubMappingMapper.xml
index 7f34adf9..783cc576 100644
--- a/fastbee-service/fastbee-iot-service/src/main/resources/mapper/iot/platform/PlatformDeviceSubMappingMapper.xml
+++ b/fastbee-service/fastbee-iot-service/src/main/resources/mapper/iot/platform/PlatformDeviceSubMappingMapper.xml
@@ -5,7 +5,7 @@
     <select id="selectByParentId" resultType="com.fastbee.iot.platform.domain.PlatformDeviceSubMapping">
         SELECT * FROM platform_device_sub_mapping
         WHERE parent_mapping_id = #{parentMappingId}
-        ORDER BY device_role DESC, id ASC
+        ORDER BY id ASC
     </select>
 
     <select id="selectByParentAndSerial" resultType="com.fastbee.iot.platform.domain.PlatformDeviceSubMapping">
diff --git a/yack-web/src/views/platform/device-mapping/index.vue b/yack-web/src/views/platform/device-mapping/index.vue
index 9b382073..627c7256 100644
--- a/yack-web/src/views/platform/device-mapping/index.vue
+++ b/yack-web/src/views/platform/device-mapping/index.vue
@@ -170,7 +170,7 @@
             </el-table-column>
             <el-table-column label="角色" width="120" align="center">
               <template slot-scope="scope">
-                <el-select v-model="scope.row.deviceRole" size="mini" style="width:100%">
+                <el-select v-model="scope.row.deviceRole" size="mini" style="width:100%" @change="onSubRoleChange(scope.row)">
                   <el-option label="基准点" value="reference" />
                   <el-option label="监测点" value="monitor" />
                 </el-select>
@@ -178,7 +178,7 @@
             </el-table-column>
             <el-table-column label="入网参数 (JSON)" min-width="220">
               <template slot-scope="scope">
-                <el-input v-model="scope.row.onboardConfig" size="mini" :placeholder="scope.row.deviceRole === 'reference' ? '{\"sensorId\":\"...\"}' : '{\"sensorId\":\"...\",\"refSensorId\":\"...\",\"refSerialNumber\":\"...\"}'" />
+                <el-input v-model="scope.row.onboardConfig" size="mini" :placeholder="getOnboardConfigPlaceholder(scope.row)" />
               </template>
             </el-table-column>
             <el-table-column label="平台设备ID" width="140" v-if="form.netStatus===1">
@@ -323,11 +323,14 @@ export default {
       listPlatformDeviceMapping(this.queryParams).then(res => {
         this.list = res.rows; this.total = res.total; this.loading = false
         // 加载设备名称映射
-        const ids = [...new Set(res.rows.map(r => r.deviceId))]
+        const ids = [...new Set(res.rows.map(r => r.deviceId).filter(Boolean))]
         if (ids.length) {
-          listDevice({ pageNum: 1, pageSize: 200 }).then(dr => {
+          Promise.all(ids.map(id => getDevice(id).catch(() => null))).then(results => {
             const map = {}
-            dr.rows.forEach(d => { map[d.deviceId] = d.deviceName })
+            results.forEach(res => {
+              const d = res && (res.data || res)
+              if (d && d.deviceId) map[d.deviceId] = d.deviceName
+            })
             this.deviceMap = map
           })
         }
@@ -349,6 +352,11 @@ export default {
     getSubDevicePairs(row) {
       return this.subMappingCache[row.id] || []
     },
+    getOnboardConfigPlaceholder(row) {
+      return row.deviceRole === 'reference'
+        ? '{"sensorId":"..."}'
+        : '{"sensorId":"...","refSensorId":"...","refSerialNumber":"..."}'
+    },
     handleQuery() { this.queryParams.pageNum = 1; this.getList() },
     resetQuery() { this.resetForm('queryForm'); this.handleQuery() },
     handleAdd() {
@@ -409,16 +417,11 @@ export default {
     onDeviceTypeChange(val) {
       if (val === 1 && this.subMappingRows.length === 0 && this.subDeviceOptions.length > 0) {
         // 切换为网关设备时，自动用已加载的子设备列表预填
-        const refSn = this.subDeviceOptions[0].serialNumber
-        this.subMappingRows = this.subDeviceOptions.map((device, idx) => {
-          const role = idx === 0 ? 'reference' : 'monitor'
-          const config = role === 'reference'
-            ? JSON.stringify({ sensorId: device.serialNumber })
-            : JSON.stringify({ sensorId: device.serialNumber, refSensorId: refSn, refSerialNumber: refSn })
+        this.subMappingRows = this.subDeviceOptions.map(device => {
           return {
             subSerialNumber: device.serialNumber,
-            deviceRole: role,
-            onboardConfig: config,
+            deviceRole: 'monitor',
+            onboardConfig: JSON.stringify({ sensorId: device.serialNumber }),
             platformDeviceId: '',
             platformPointId: ''
           }
@@ -475,12 +478,20 @@ export default {
       this.loadThingsModel(deviceId)
     },
     searchDevice(query) {
-      if (!query) return
+      const keyword = (query || '').trim()
+      if (!keyword) return
       this.deviceSearchLoading = true
-      listDevice({ pageNum: 1, pageSize: 50, deviceName: query }).then(res => {
+      listDevice({ pageNum: 1, pageSize: 50, ...this.buildDeviceSearchParams(keyword) }).then(res => {
         this.deviceOptions = res.rows; this.deviceSearchLoading = false
       })
     },
+    buildDeviceSearchParams(query) {
+      const keyword = (query || '').trim()
+      if (keyword.length === 12) {
+        return { serialNumber: keyword }
+      }
+      return { deviceName: keyword }
+    },
     loadDeviceContext(deviceId) {
       if (!deviceId) return
       getDevice(deviceId).then(res => {
@@ -524,18 +535,13 @@ export default {
         if (!this.form.id) {
           this.form.deviceType = this.subDeviceOptions.length > 0 ? 1 : 0
         }
-        // 网关设备且子映射为空时，自动预填所有子设备，第一个为基准点
+        // 网关设备且子映射为空时，自动预填所有子设备；基准点由用户明确指定
         if (this.form.deviceType === 1 && this.subMappingRows.length === 0 && this.subDeviceOptions.length > 0) {
-          this.subMappingRows = this.subDeviceOptions.map((device, idx) => {
-            const role = idx === 0 ? 'reference' : 'monitor'
-            const refSn = this.subDeviceOptions[0].serialNumber
-            const config = role === 'reference'
-              ? JSON.stringify({ sensorId: device.serialNumber })
-              : JSON.stringify({ sensorId: device.serialNumber, refSensorId: refSn, refSerialNumber: refSn })
+          this.subMappingRows = this.subDeviceOptions.map(device => {
             return {
               subSerialNumber: device.serialNumber,
-              deviceRole: role,
-              onboardConfig: config,
+              deviceRole: 'monitor',
+              onboardConfig: JSON.stringify({ sensorId: device.serialNumber }),
               platformDeviceId: '',
               platformPointId: ''
             }
@@ -553,18 +559,69 @@ export default {
     addSubMapping() {
       this.subMappingRows.push({ subSerialNumber: '', deviceRole: 'monitor', onboardConfig: '', platformDeviceId: '', platformPointId: '' })
     },
-    onSubSerialChange(row) {
-      // 自动填充 onboardConfig 中的 sensorId
-      if (!row.onboardConfig && row.subSerialNumber) {
-        const refRow = this.subMappingRows.find(r => r.deviceRole === 'reference')
-        if (row.deviceRole === 'reference') {
-          row.onboardConfig = JSON.stringify({ sensorId: row.subSerialNumber })
-        } else if (refRow) {
-          row.onboardConfig = JSON.stringify({ sensorId: row.subSerialNumber, refSensorId: refRow.subSerialNumber, refSerialNumber: refRow.subSerialNumber })
-        } else {
-          row.onboardConfig = JSON.stringify({ sensorId: row.subSerialNumber })
-        }
+    onSubRoleChange(row) {
+      if (row.deviceRole === 'reference') {
+        this.subMappingRows.forEach(item => {
+          if (item !== row && item.deviceRole === 'reference') {
+            item.deviceRole = 'monitor'
+          }
+        })
       }
+      this.refreshSubMappingOnboardConfigs()
+    },
+    onSubSerialChange(row) {
+      if (!row.subSerialNumber) return
+      row.onboardConfig = JSON.stringify({ sensorId: row.subSerialNumber })
+      this.refreshSubMappingOnboardConfigs()
+    },
+    findReferenceRow(rows = this.subMappingRows) {
+      return (rows || []).find(r => r.deviceRole === 'reference' && r.subSerialNumber)
+    },
+    buildOnboardConfig(row, refRow) {
+      const config = this.safeParseJson(row.onboardConfig, {})
+      const next = { ...config, sensorId: config.sensorId || row.subSerialNumber }
+      if (row.deviceRole === 'reference') {
+        delete next.refSensorId
+        delete next.refSerialNumber
+      } else if (refRow && refRow.subSerialNumber) {
+        const refConfig = this.safeParseJson(refRow.onboardConfig, {})
+        next.refSensorId = refConfig.sensorId || refRow.subSerialNumber
+        next.refSerialNumber = refRow.subSerialNumber
+      } else {
+        delete next.refSensorId
+        delete next.refSerialNumber
+      }
+      return JSON.stringify(next)
+    },
+    refreshSubMappingOnboardConfigs() {
+      const refRow = this.findReferenceRow()
+      if (refRow && refRow.subSerialNumber) {
+        refRow.onboardConfig = this.buildOnboardConfig(refRow, null)
+      }
+      this.subMappingRows.forEach(row => {
+        if (!row.subSerialNumber || row === refRow) return
+        row.onboardConfig = this.buildOnboardConfig(row, refRow)
+      })
+    },
+    normalizeSubMappingsForSubmit() {
+      const rows = (this.subMappingRows || [])
+        .filter(r => r.subSerialNumber)
+        .map(r => ({ ...r, deviceRole: r.deviceRole || 'monitor' }))
+      const references = rows.filter(r => r.deviceRole === 'reference')
+      const monitors = rows.filter(r => r.deviceRole === 'monitor')
+      if (references.length > 1) {
+        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
+      }
+      const refRow = references[0] || null
+      return rows.map(row => ({
+        ...row,
+        onboardConfig: this.buildOnboardConfig(row, refRow)
+      }))
     },
     safeParseJson(value, defaultValue) {
       if (!value) return defaultValue
@@ -576,6 +633,13 @@ export default {
         if (!valid) return
         this.form.fieldMapping = this.fieldMappingRows.length > 0
           ? JSON.stringify(this.fieldMappingRows) : null
+        const normalizedSubRows = this.form.deviceType === 1
+          ? this.normalizeSubMappingsForSubmit()
+          : []
+        if (this.form.deviceType === 1 && normalizedSubRows === null) return
+        if (this.form.deviceType === 1) {
+          this.subMappingRows = normalizedSubRows
+        }
         // 网关设备：extra_mapping 只存数据映射配置
         if (this.form.deviceType === 1) {
           this.form.extraMapping = JSON.stringify({
@@ -591,8 +655,7 @@ export default {
           const mappingId = this.form.id || (res.data && res.data.id) || res.data
           // 网关设备：保存后同步子映射
           if (this.form.deviceType === 1 && mappingId) {
-            const subData = this.subMappingRows
-              .filter(r => r.subSerialNumber)
+            const subData = normalizedSubRows
               .map(r => ({
                 subSerialNumber: r.subSerialNumber,
                 deviceRole: r.deviceRole || 'monitor',