diff --git a/ruoyi-ems/src/main/resources/mapper/ems/record/RecordIotenvInstantMapper.xml b/ruoyi-ems/src/main/resources/mapper/ems/record/RecordIotenvInstantMapper.xml
index 0be44a4..3c01c11 100644
--- a/ruoyi-ems/src/main/resources/mapper/ems/record/RecordIotenvInstantMapper.xml
+++ b/ruoyi-ems/src/main/resources/mapper/ems/record/RecordIotenvInstantMapper.xml
@@ -31,7 +31,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                noise,
                concentration,
                vibration_speed,
-               vibration_displacement,
+               displacement as vibration_displacement,
                vibration_acceleration,
                vibration_temp,
                collectTime,
@@ -136,12 +136,12 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     <select id="selectRecordIotenvInstantListFromTables" resultMap="RecordIotenvInstantResult">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.objid, t.monitorId, t.temperature, t.humidity, t.illuminance, t.noise, t.concentration,
-            t.vibration_speed, t.vibration_displacement, t.vibration_acceleration, t.vibration_temp,
+            t.vibration_speed, t.displacement as vibration_displacement, t.vibration_acceleration, t.vibration_temp,
             t.collectTime, t.recodeTime,
-            COALESCE(ebmi.monitor_name, t.monitorId) AS monitor_name,
+            COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitor_name,
             t.monitorId AS monitor_code
             FROM ${tableName} t
-            LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId = ebmi.monitor_code
+            LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
             <where>
                 <if test="recordIotenvInstant.monitorId != null  and recordIotenvInstant.monitorId != ''"> and t.monitorId = #{recordIotenvInstant.monitorId}</if>
                 <if test="recordIotenvInstant.temperature != null "> and t.temperature = #{recordIotenvInstant.temperature}</if>
@@ -170,7 +170,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                 <!-- 过滤异常数据：温度、湿度、噪声范围 [0, 79] -->
                 <!-- 这里沿用范围过滤和空值判断，避免无意义的数据点拖慢历史查询。 -->
                 AND (t.temperature IS NULL OR t.temperature BETWEEN 0 AND 79)
-                AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 79)
+                AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 99)
                 AND (t.noise IS NULL OR t.noise BETWEEN 0 AND 79)
 
                 <!-- 根据设备类型过滤掉负责字段为0的数据 -->
@@ -182,8 +182,8 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     (ebmi.monitor_type = 6 AND (t.temperature > 0 OR t.humidity > 0)) OR
                     -- 噪声设备(type=7)：过滤噪声为0的数据
                     (ebmi.monitor_type = 7 AND t.noise > 0) OR
-                    -- 振动设备(type=10)：过滤振动相关字段都为0的数据
-                    (ebmi.monitor_type = 10 AND (t.vibration_speed > 0 OR t.vibration_displacement > 0 OR t.vibration_acceleration > 0 OR t.vibration_temp > 0)) OR
+                    -- 振动设备(type=10)：过滤振动相关字段都为0的数据，并排除位移异常标记值 9999999.0000
+                    (ebmi.monitor_type = 10 AND (t.vibration_speed > 0 OR (t.displacement > 0 AND t.displacement != 9999999.0000) OR t.vibration_acceleration > 0 OR t.vibration_temp > 0)) OR
                     -- 其他类型设备或无设备信息：保留所有有效数据
                     (ebmi.monitor_type NOT IN (5, 6, 7, 10) OR ebmi.monitor_type IS NULL)
                 )
@@ -202,12 +202,12 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         FROM (
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             (SELECT t.objid, t.monitorId, t.temperature, t.humidity, t.illuminance, t.noise, t.concentration,
-            t.vibration_speed, t.vibration_displacement, t.vibration_acceleration, t.vibration_temp,
+            t.vibration_speed, t.displacement as vibration_displacement, t.vibration_acceleration, t.vibration_temp,
             t.collectTime, t.recodeTime,
-            COALESCE(ebmi.monitor_name, t.monitorId) as monitor_name,
+            COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) as monitor_name,
             t.monitorId as monitor_code
             FROM ${tableName} t
-            left join  ems_base_monitor_info ebmi on t.monitorId = ebmi.monitor_code
+            left join  ems_base_monitor_info ebmi on t.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
             <where>
                 <if test="recordIotenvInstant.monitorId != null  and recordIotenvInstant.monitorId != ''"> and t.monitorId = #{recordIotenvInstant.monitorId}</if>
                 <if test="recordIotenvInstant.temperature != null "> and t.temperature = #{recordIotenvInstant.temperature}</if>
@@ -236,7 +236,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                 <!-- 过滤异常数据：温度、湿度、噪声范围 [0, 79] -->
                 <!-- 这里沿用范围过滤和空值判断，避免无意义的数据点拖慢历史查询。 -->
                 AND (t.temperature IS NULL OR t.temperature BETWEEN 0 AND 79)
-                AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 79)
+                AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 99)
                 AND (t.noise IS NULL OR t.noise BETWEEN 0 AND 79)
 
                 <!-- 根据设备类型过滤掉负责字段为0的数据 -->
@@ -255,7 +255,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                                 t.vibration_speed > 0 AND t.vibration_speed &lt; 80
                             </when>
                             <when test="recordIotenvInstant.vibrationParam == 'vibrationDisplacement'">
-                                t.vibration_displacement > 0 AND t.vibration_displacement &lt; 80
+                                t.displacement > 0 AND t.displacement != 9999999.0000
                             </when>
                             <when test="recordIotenvInstant.vibrationParam == 'vibrationAcceleration'">
                                 t.vibration_acceleration > 0 AND t.vibration_acceleration &lt; 80
@@ -264,7 +264,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                                 t.vibration_temp > 0 AND t.vibration_temp &lt; 80
                             </when>
                             <otherwise>
-                                t.vibration_speed > 0 OR t.vibration_displacement > 0 OR t.vibration_acceleration > 0 OR t.vibration_temp > 0
+                                t.vibration_speed > 0 OR (t.displacement > 0 AND t.displacement != 9999999.0000) OR t.vibration_acceleration > 0 OR t.vibration_temp > 0
                             </otherwise>
                         </choose>
                     )) OR
@@ -293,7 +293,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.objid
                 FROM ${tableName} t
-                LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId = ebmi.monitor_code
+                LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
                 <where>
                     <if test="recordIotenvInstant.monitorId != null  and recordIotenvInstant.monitorId != ''"> and t.monitorId = #{recordIotenvInstant.monitorId}</if>
                     <if test="recordIotenvInstant.temperature != null "> and t.temperature = #{recordIotenvInstant.temperature}</if>
@@ -322,7 +322,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     <!-- 过滤异常数据：温度、湿度、噪声范围 [1, 79] -->
                     <!-- 这里沿用范围过滤和空值判断，避免无意义的数据点拖慢历史查询。 -->
                     AND (t.temperature IS NULL OR t.temperature BETWEEN 0 AND 79)
-                    AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 79)
+                    AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 99)
                     AND (t.noise IS NULL OR t.noise BETWEEN 0 AND 79)
 
                     <!-- 过滤虚拟设备：忽略is_ammeter为0的虚拟设备 -->
@@ -390,10 +390,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         SELECT TOP (1) t.objid, t.monitorId, t.temperature, t.humidity, t.illuminance, t.noise, t.concentration,
                t.vibration_speed, t.vibration_displacement, t.vibration_acceleration, t.vibration_temp,
                t.collectTime, t.recodeTime,
-               COALESCE(ebmi.monitor_name, t.monitorId) AS monitor_name,
+               COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitor_name,
                t.monitorId AS monitor_code
         FROM ${tableName} t
-        LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId = ebmi.monitor_code
+        LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
         WHERE t.monitorId = #{monitorId}
         ORDER BY t.recodeTime DESC, t.objid DESC
     </select>
@@ -403,10 +403,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         SELECT t1.objid, t1.monitorId, t1.temperature, t1.humidity, t1.illuminance, t1.noise, t1.concentration,
                t1.vibration_speed, t1.vibration_displacement, t1.vibration_acceleration, t1.vibration_temp,
                t1.collectTime, t1.recodeTime,
-               COALESCE(ebmi.monitor_name, t1.monitorId) AS monitor_name,
+               COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t1.monitorId COLLATE DATABASE_DEFAULT) AS monitor_name,
                t1.monitorId AS monitor_code
         FROM ${tableName} t1
-        LEFT JOIN ems_base_monitor_info ebmi ON t1.monitorId = ebmi.monitor_code
+        LEFT JOIN ems_base_monitor_info ebmi ON t1.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
         INNER JOIN (
             SELECT monitorId, MAX(objid) as max_objid
             FROM ${tableName}
@@ -425,10 +425,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                 SELECT t.objid, t.monitorId, t.temperature, t.humidity, t.illuminance, t.noise, t.concentration,
                        t.vibration_speed, t.vibration_displacement, t.vibration_acceleration, t.vibration_temp,
                        t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitor_name,
-                       t.monitorId AS monitor_code
+                    COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitor_name,
+                    t.monitorId AS monitor_code
                 FROM ${tableName} t
-                LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId = ebmi.monitor_code
+                LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
                 <where>
                     <if test="monitorIds != null and monitorIds.size() > 0">
                         AND t.monitorId IN
@@ -459,10 +459,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                 t1.objid, t1.monitorId, t1.temperature, t1.humidity, t1.illuminance, t1.noise, t1.concentration,
                 t1.vibration_speed, t1.vibration_displacement, t1.vibration_acceleration, t1.vibration_temp,
                 t1.collectTime, t1.recodeTime,
-                COALESCE(ebmi.monitor_name, t1.monitorId) AS monitor_name,
+                COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t1.monitorId COLLATE DATABASE_DEFAULT) AS monitor_name,
                 t1.monitorId AS monitor_code
             FROM ${tableName} t1
-            LEFT JOIN ems_base_monitor_info ebmi ON t1.monitorId = ebmi.monitor_code
+            LEFT JOIN ems_base_monitor_info ebmi ON t1.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
             INNER JOIN (
                 <!-- 用子查询先计算 time_slot，避免 SELECT 和 GROUP BY 中各自生成不同的 ? 占位符导致 SQL Server 报错 -->
                 SELECT monitorId, time_slot, MAX(recodeTime) AS max_time FROM (
@@ -485,7 +485,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                         ) as time_slot,
                         t.recodeTime
                     FROM ${tableName} t
-                    LEFT JOIN ems_base_monitor_info ebmi2 ON t.monitorId = ebmi2.monitor_code
+                    LEFT JOIN ems_base_monitor_info ebmi2 ON t.monitorId COLLATE DATABASE_DEFAULT = ebmi2.monitor_code COLLATE DATABASE_DEFAULT
                     <where>
                         <if test="recordIotenvInstant.monitorId != null and recordIotenvInstant.monitorId != ''">
                             AND t.monitorId = #{recordIotenvInstant.monitorId}
@@ -501,7 +501,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                             </foreach>
                         </if>
                         AND (t.temperature IS NULL OR t.temperature BETWEEN 0 AND 79)
-                        AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 79)
+                        AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 99)
                         AND (t.noise IS NULL OR t.noise BETWEEN 0 AND 79)
 
                         <!-- 过滤虚拟设备：忽略is_ammeter为0的虚拟设备 -->
@@ -537,10 +537,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                 t.objid, t.monitorId, t.temperature, t.humidity, t.illuminance, t.noise, t.concentration,
                 t.vibration_speed, t.vibration_displacement, t.vibration_acceleration, t.vibration_temp,
                 t.collectTime, t.recodeTime,
-                COALESCE(ebmi.monitor_name, t.monitorId) as monitor_name,
+                COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) as monitor_name,
                 t.monitorId as monitor_code
             FROM ${tableName} t
-            LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId = ebmi.monitor_code
+            LEFT JOIN ems_base_monitor_info ebmi ON t.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
             <where>
                 <!-- 单个设备查询 -->
                 <if test="recordIotenvInstant.monitorId != null and recordIotenvInstant.monitorId != ''">
@@ -562,7 +562,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 
                 <!-- 过滤异常数据：温度、湿度、噪声范围 [0, 79] -->
                 AND (t.temperature IS NULL OR t.temperature BETWEEN 0 AND 79)
-                AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 79)
+                AND (t.humidity IS NULL OR t.humidity BETWEEN 0 AND 99)
                 AND (t.noise IS NULL OR t.noise BETWEEN 0 AND 79)
             </where>
         </foreach>
diff --git a/ruoyi-ems/src/main/resources/mapper/ems/report/DisplacementBoardMapper.xml b/ruoyi-ems/src/main/resources/mapper/ems/report/DisplacementBoardMapper.xml
index 2c0bdd8..25918a1 100644
--- a/ruoyi-ems/src/main/resources/mapper/ems/report/DisplacementBoardMapper.xml
+++ b/ruoyi-ems/src/main/resources/mapper/ems/report/DisplacementBoardMapper.xml
@@ -36,10 +36,29 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         t.displacement AS vibration_displacement,
         t.collectTime,
         t.recodeTime,
-        COALESCE(ebmi.monitor_name, t.monitorId) AS monitor_name,
+        <choose>
+            <when test="_databaseId == null or _databaseId == '' or _databaseId == 'sqlserver' or _databaseId == 'sql_server' or _databaseId == 'mssql' or _databaseId == 'SQL Server' or _databaseId == 'SQLSERVER' or _databaseId == 'SQL_SERVER' or _databaseId == 'SqlServer'">
+                COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitor_name,
+            </when>
+            <otherwise>
+                COALESCE(ebmi.monitor_name, t.monitorId) AS monitor_name,
+            </otherwise>
+        </choose>
         t.monitorId AS monitor_code
     </sql>
 
+    <!-- SQL Server databaseId 在不同配置下可能为空或命名不一致，JOIN 字符串字段时统一兜底排序规则。 -->
+    <sql id="monitorJoinCondition">
+        <choose>
+            <when test="_databaseId == null or _databaseId == '' or _databaseId == 'sqlserver' or _databaseId == 'sql_server' or _databaseId == 'mssql' or _databaseId == 'SQL Server' or _databaseId == 'SQLSERVER' or _databaseId == 'SQL_SERVER' or _databaseId == 'SqlServer'">
+                t.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
+            </when>
+            <otherwise>
+                t.monitorId = ebmi.monitor_code
+            </otherwise>
+        </choose>
+    </sql>
+
     <!--
         分析类 WHERE：
         1. 时间范围（参数化绑定 #{} 防注入）
@@ -63,11 +82,13 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         </choose>
         AND t.displacement IS NOT NULL
         AND t.displacement &gt; 0
+        AND t.displacement != 9999999.0000
     </sql>
 
     <!--
         质量页 WHERE：仅按时间/设备过滤，不做位移有效值过滤，
         避免质量页分母被提前缩小导致覆盖率虚高。
+        但仍需排除异常标记值 9999999.0000。
     -->
     <sql id="baseWhereQuality">
         t.recodeTime &gt;= #{query.beginRecordTime}
@@ -83,6 +104,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                 </foreach>
             </when>
         </choose>
+        AND t.displacement != 9999999.0000
     </sql>
 
     <!--
@@ -90,6 +112,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         INNER JOIN monitor_type = 10 确保只查振动类设备（现场物理意义：振动位移传感器挂在 type=10 下）。
         ${tableName} 虽然是拼接而非参数化，但 Service 已做白名单正则校验（TABLE_NAME_PATTERN），
         此处是唯一允许 ${} 的位置。
+        SQL Server 排序规则冲突规避：ON 条件中使用 COLLATE DATABASE_DEFAULT。
     -->
     <sql id="rawPageQuery">
         SELECT *
@@ -99,7 +122,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     <include refid="selectColumns"/>
                 FROM ${tableName} t
                 INNER JOIN ems_base_monitor_info ebmi
-                    ON t.monitorId = ebmi.monitor_code
+                    ON <include refid="monitorJoinCondition"/>
                     AND ebmi.monitor_type = 10
                 <where>
                     <include refid="baseWhere"/>
@@ -137,7 +160,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     ) AS rn
                 FROM ${tableName} t
                 INNER JOIN ems_base_monitor_info ebmi
-                    ON t.monitorId = ebmi.monitor_code
+                    ON <include refid="monitorJoinCondition"/>
                     AND ebmi.monitor_type = 10
                 <where>
                     <include refid="baseWhere"/>
@@ -153,14 +176,15 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             collectTime,
             recodeTime
         FROM sampled
-        <!-- rn = 1 为每个“设备+时间桶”内最新的一条，效果等价于“每 N 分钟取一个位移采样点” -->
+        <!-- rn = 1 为每个"设备+时间桶"内最新的一条，效果等价于"每 N 分钟取一个位移采样点" -->
         WHERE rn = 1
         ORDER BY monitorId ASC, recodeTime ASC, objid ASC
     </sql>
 
     <!--
         质量页原始查询：不按位移有效值过滤，
-        保证分母代表“本次查询实际采到的样本总数”。
+        保证分母代表"本次查询实际采到的样本总数"。
+        SQL Server 排序规则冲突规避：ON 条件中使用 COLLATE DATABASE_DEFAULT。
     -->
     <sql id="rawQualityQuery">
         SELECT *
@@ -170,7 +194,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     <include refid="selectColumns"/>
                 FROM ${tableName} t
                 INNER JOIN ems_base_monitor_info ebmi
-                    ON t.monitorId = ebmi.monitor_code
+                    ON <include refid="monitorJoinCondition"/>
                     AND ebmi.monitor_type = 10
                 <where>
                     <include refid="baseWhereQuality"/>
@@ -183,6 +207,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     <!--
         质量页抽样查询：仅做时间桶抽样，不做位移有效值过滤，
         避免质量统计在 SQL 层被“分析口径”提前污染。
+        SQL Server 排序规则冲突规避：ON 条件中使用 COLLATE DATABASE_DEFAULT。
     -->
     <sql id="samplingQualityQuery">
         WITH sampled AS (
@@ -206,7 +231,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     ) AS rn
                 FROM ${tableName} t
                 INNER JOIN ems_base_monitor_info ebmi
-                    ON t.monitorId = ebmi.monitor_code
+                    ON <include refid="monitorJoinCondition"/>
                     AND ebmi.monitor_type = 10
                 <where>
                     <include refid="baseWhereQuality"/>
diff --git a/ruoyi-ems/src/main/resources/mapper/ems/report/TempBoardMapper.xml b/ruoyi-ems/src/main/resources/mapper/ems/report/TempBoardMapper.xml
index 59be08e..b5c6eb6 100644
--- a/ruoyi-ems/src/main/resources/mapper/ems/report/TempBoardMapper.xml
+++ b/ruoyi-ems/src/main/resources/mapper/ems/report/TempBoardMapper.xml
@@ -13,19 +13,30 @@
         t.temperature,
         t.collectTime,
         t.recodeTime,
-        COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+        COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
     </sql>
 
-    <!-- 公共 JOIN：只保留温度相关测点，统一和振动看板保持相同的设备口径 -->
+    <!--
+        公共 JOIN：只保留温度相关测点，统一和振动看板保持相同的设备口径。
+        SQL Server 排序规则冲突规避：ON 条件中使用 COLLATE DATABASE_DEFAULT。
+    -->
     <sql id="baseJoin">
         INNER JOIN ems_base_monitor_info ebmi
-            ON t.monitorId = ebmi.monitor_code
+            ON
+            <choose>
+                <when test="_databaseId == null or _databaseId == '' or _databaseId == 'sqlserver' or _databaseId == 'sql_server' or _databaseId == 'mssql' or _databaseId == 'SQL Server' or _databaseId == 'SQLSERVER' or _databaseId == 'SQL_SERVER' or _databaseId == 'SqlServer'">
+                    t.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
+                </when>
+                <otherwise>
+                    t.monitorId = ebmi.monitor_code
+                </otherwise>
+            </choose>
             AND ebmi.monitor_type IN (5, 6)
     </sql>
 
-    <!-- 公共过滤：温度只要求有值，不再把 0℃ / 负温 / 高温场景误判成脏数据 -->
+    <!-- 公共过滤：屏蔽 0 以下和 80 以上的异常温度数据 -->
     <sql id="tempFilter">
-        AND t.temperature IS NOT NULL
+        AND t.temperature BETWEEN 0 AND 79
     </sql>
 
     <!-- 公共时间过滤 -->
@@ -57,7 +68,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -80,7 +91,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -122,7 +133,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -146,7 +157,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -170,7 +181,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -197,7 +208,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -223,7 +234,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -248,7 +259,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -273,7 +284,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -299,7 +310,7 @@
         WITH all_data AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime, t.recodeTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -327,7 +338,7 @@
             SELECT
                 FORMAT(t.collectTime, 'yyyy-MM-dd HH:mm:00') AS statTime,
                 t.monitorId,
-                COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                 ROUND(AVG(t.temperature), 2) AS avgTemp,
                 COUNT(*) AS sampleCount
             FROM ${tableName} t
@@ -338,7 +349,7 @@
                 <include refid="tempFilter"/>
             </where>
             GROUP BY FORMAT(t.collectTime, 'yyyy-MM-dd HH:mm:00'), t.monitorId,
-                     COALESCE(ebmi.monitor_name, t.monitorId)
+                     COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY statTime
     </select>
@@ -349,7 +360,7 @@
             SELECT
                 FORMAT(t.collectTime, 'yyyy-MM-dd HH:00:00') AS statTime,
                 t.monitorId,
-                COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                 ROUND(AVG(t.temperature), 2) AS avgTemp,
                 ROUND(MAX(t.temperature), 2) AS maxTemp,
                 ROUND(MIN(t.temperature), 2) AS minTemp,
@@ -362,7 +373,7 @@
                 <include refid="tempFilter"/>
             </where>
             GROUP BY FORMAT(t.collectTime, 'yyyy-MM-dd HH:00:00'), t.monitorId,
-                     COALESCE(ebmi.monitor_name, t.monitorId)
+                     COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY statTime
     </select>
@@ -394,7 +405,7 @@
                     </otherwise>
                 </choose> AS statTime,
                 t.monitorId,
-                COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                 ROUND(AVG(t.temperature), 2) AS avgTemp
             FROM ${tableName} t
             <include refid="baseJoin"/>
@@ -421,7 +432,7 @@
                     </otherwise>
                 </choose>,
                 t.monitorId,
-                COALESCE(ebmi.monitor_name, t.monitorId)
+                COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY statTime, monitorId
     </select>
@@ -499,7 +510,7 @@
         WITH base AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -606,7 +617,7 @@
     <select id="selectHighTempEvents" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardAnomalyVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    t.temperature,
                    t.collectTime,
                    'HIGH_TEMP' AS anomalyType
@@ -642,7 +653,7 @@
     <select id="selectLowTempEvents" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardAnomalyVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    t.temperature,
                    t.collectTime,
                    'LOW_TEMP' AS anomalyType
@@ -679,7 +690,7 @@
         WITH base AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -723,7 +734,7 @@
         WITH base AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.temperature, t.collectTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -783,7 +794,7 @@
     <select id="selectJitterAnomalies" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardAnomalyVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    FORMAT(t.collectTime, 'yyyy-MM-dd HH:00:00') AS statTime,
                    ROUND(AVG(t.temperature), 2) AS avgTemp,
                    ROUND(STDEVP(t.temperature), 4) AS tempStddev,
@@ -794,7 +805,7 @@
                 <include refid="timeFilter"/>
                 <include refid="tempFilter"/>
             </where>
-            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId),
+            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT),
                      FORMAT(t.collectTime, 'yyyy-MM-dd HH:00:00')
             HAVING STDEVP(t.temperature) >= #{stddevThreshold}
         </foreach>
@@ -807,7 +818,7 @@
     <select id="selectAvgTempRanking" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardComparisonVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    ROUND(AVG(t.temperature), 2) AS avgTemp
             FROM ${tableName} t
             <include refid="baseJoin"/>
@@ -815,7 +826,7 @@
                 <include refid="timeFilter"/>
                 <include refid="tempFilter"/>
             </where>
-            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY avgTemp DESC
     </select>
@@ -824,7 +835,7 @@
     <select id="selectStabilityRanking" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardComparisonVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    ROUND(STDEVP(t.temperature), 4) AS tempStddev
             FROM ${tableName} t
             <include refid="baseJoin"/>
@@ -832,7 +843,7 @@
                 <include refid="timeFilter"/>
                 <include refid="tempFilter"/>
             </where>
-            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY tempStddev ASC
     </select>
@@ -842,7 +853,7 @@
         WITH today_avg AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                        AVG(t.temperature) AS avgTemp
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
@@ -850,13 +861,13 @@
                     t.collectTime >= #{todayStartTime} AND t.collectTime &lt; #{todayEndTime}
                     <include refid="tempFilter"/>
                 </where>
-                GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+                GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
             </foreach>
         ),
         yesterday_avg AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                        AVG(t.temperature) AS avgTemp
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
@@ -864,7 +875,7 @@
                     t.collectTime >= #{yesterdayStartTime} AND t.collectTime &lt; #{yesterdayEndTime}
                     <include refid="tempFilter"/>
                 </where>
-                GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+                GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
             </foreach>
         )
         SELECT t.monitorId, t.monitorName,
@@ -895,7 +906,7 @@
         FROM (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                        MAX(t.temperature) AS maxTemp,
                        MIN(t.temperature) AS minTemp,
                        SUM(t.temperature) AS sumTemp,
@@ -906,7 +917,7 @@
                     <include refid="timeFilter"/>
                     <include refid="tempFilter"/>
                 </where>
-                GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+                GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
             </foreach>
         ) sub
         GROUP BY sub.monitorId, sub.monitorName
@@ -917,7 +928,7 @@
     <select id="selectFluctuationCompare" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardComparisonVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    MAX(t.temperature) - MIN(t.temperature) AS tempRange
             FROM ${tableName} t
             <include refid="baseJoin"/>
@@ -925,7 +936,7 @@
                 <include refid="timeFilter"/>
                 <include refid="tempFilter"/>
             </where>
-            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY tempRange DESC
     </select>
@@ -960,7 +971,7 @@
     <select id="selectTimeReversal" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardQualityVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    t.temperature,
                    t.collectTime,
                    t.recodeTime,
@@ -1003,7 +1014,7 @@
         WITH base AS (
             <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
                 SELECT t.monitorId, t.collectTime,
-                       COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName
+                       COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
                 <where>
@@ -1053,7 +1064,7 @@
     <select id="selectCompletenessRate" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardQualityVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    COUNT(*) AS actualCount,
                    #{expectedCount} AS expectedCount,
                    ROUND(CAST(COUNT(*) AS FLOAT) / #{expectedCount}, 4) AS completenessRate
@@ -1063,7 +1074,7 @@
                 <include refid="timeFilter"/>
                 <include refid="tempFilter"/>
             </where>
-            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY completenessRate ASC
     </select>
@@ -1072,7 +1083,7 @@
     <select id="selectMonitorActivity" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardQualityVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    COUNT(*) AS actualCount,
                    MIN(t.collectTime) AS firstTime,
                    MAX(t.collectTime) AS lastTime
@@ -1082,7 +1093,7 @@
                 <include refid="timeFilter"/>
                 <include refid="tempFilter"/>
             </where>
-            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY actualCount DESC
     </select>
@@ -1158,7 +1169,7 @@
                         </otherwise>
                     </choose> AS statBucket,
                     t.monitorId,
-                    COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                    COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                     ROUND(AVG(t.temperature), 2) AS avgTemp
                 FROM ${tableName} t
                 <include refid="baseJoin"/>
@@ -1178,7 +1189,7 @@
                             DATEADD(MINUTE, DATEDIFF(MINUTE, 0, t.collectTime), 0)
                         </otherwise>
                     </choose>,
-                    t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+                    t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
             </foreach>
         ) sub
         ORDER BY statTime, monitorId
@@ -1189,7 +1200,7 @@
     <select id="selectTreemapData" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardAdvancedVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    ROUND(AVG(t.temperature), 2) AS avgTemp,
                    COUNT(*) AS sampleCount
             FROM ${tableName} t
@@ -1198,7 +1209,7 @@
                 <include refid="timeFilter"/>
                 <include refid="tempFilter"/>
             </where>
-            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY avgTemp DESC
     </select>
@@ -1216,7 +1227,7 @@
                     ELSE '>=30'
                 END AS tempBucket,
                 t.monitorId,
-                COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                 COUNT(*) AS sampleCount
             FROM ${tableName} t
             <include refid="baseJoin"/>
@@ -1232,7 +1243,7 @@
                     WHEN t.temperature &lt; 30 THEN '25-30'
                     ELSE '>=30'
                 END,
-                t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+                t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY tempBucket, monitorId
     </select>
@@ -1242,7 +1253,7 @@
     <select id="selectParallelData" resultType="org.dromara.ems.report.domain.vo.tempboard.TempBoardAdvancedVo">
         <foreach collection="tableNames" item="tableName" separator=" UNION ALL ">
             SELECT t.monitorId,
-                   COALESCE(ebmi.monitor_name, t.monitorId) AS monitorName,
+                   COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitorName,
                    ROUND(AVG(t.temperature), 2) AS avgTemp,
                    ROUND(MAX(t.temperature), 2) AS maxTemp,
                    ROUND(MIN(t.temperature), 2) AS minTemp,
@@ -1254,7 +1265,7 @@
                 <include refid="timeFilter"/>
                 <include refid="tempFilter"/>
             </where>
-            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name, t.monitorId)
+            GROUP BY t.monitorId, COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT)
         </foreach>
         ORDER BY avgTemp DESC
     </select>
diff --git a/ruoyi-ems/src/main/resources/mapper/ems/report/VibrationBoardMapper.xml b/ruoyi-ems/src/main/resources/mapper/ems/report/VibrationBoardMapper.xml
index 354d68c..0486b4e 100644
--- a/ruoyi-ems/src/main/resources/mapper/ems/report/VibrationBoardMapper.xml
+++ b/ruoyi-ems/src/main/resources/mapper/ems/report/VibrationBoardMapper.xml
@@ -49,10 +49,29 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         t.vibration_temp,
         t.collectTime,
         t.recodeTime,
-        COALESCE(ebmi.monitor_name, t.monitorId) AS monitor_name,
+        <choose>
+            <when test="_databaseId == null or _databaseId == '' or _databaseId == 'sqlserver' or _databaseId == 'sql_server' or _databaseId == 'mssql' or _databaseId == 'SQL Server' or _databaseId == 'SQLSERVER' or _databaseId == 'SQL_SERVER' or _databaseId == 'SqlServer'">
+                COALESCE(ebmi.monitor_name COLLATE DATABASE_DEFAULT, t.monitorId COLLATE DATABASE_DEFAULT) AS monitor_name,
+            </when>
+            <otherwise>
+                COALESCE(ebmi.monitor_name, t.monitorId) AS monitor_name,
+            </otherwise>
+        </choose>
         t.monitorId AS monitor_code
     </sql>
 
+    <!-- SQL Server databaseId 在不同配置下可能为空或命名不一致，JOIN 字符串字段时统一兜底排序规则。 -->
+    <sql id="monitorJoinCondition">
+        <choose>
+            <when test="_databaseId == null or _databaseId == '' or _databaseId == 'sqlserver' or _databaseId == 'sql_server' or _databaseId == 'mssql' or _databaseId == 'SQL Server' or _databaseId == 'SQLSERVER' or _databaseId == 'SQL_SERVER' or _databaseId == 'SqlServer'">
+                t.monitorId COLLATE DATABASE_DEFAULT = ebmi.monitor_code COLLATE DATABASE_DEFAULT
+            </when>
+            <otherwise>
+                t.monitorId = ebmi.monitor_code
+            </otherwise>
+        </choose>
+    </sql>
+
     <!--
         公共 WHERE 条件：
         1. 时间范围——使用参数化绑定 #{} 防注入
@@ -129,6 +148,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         INNER JOIN monitor_type = 10 确保只查振动设备——这是「振动报表独立口径」的 SQL 层保障。
         ${tableName} 虽然使用拼接而非参数化，但 Java 层已有白名单正则校验（TABLE_NAME_PATTERN），
         此处是唯一允许 ${} 的位置。
+        SQL Server 排序规则冲突规避：ON 条件中使用 COLLATE DATABASE_DEFAULT。
     -->
     <sql id="rawPageQuery">
         SELECT *
@@ -138,7 +158,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     <include refid="selectColumns"/>
                 FROM ${tableName} t
                 INNER JOIN ems_base_monitor_info ebmi
-                    ON t.monitorId = ebmi.monitor_code
+                    ON <include refid="monitorJoinCondition"/>
                     AND ebmi.monitor_type = 10
                 <where>
                     <include refid="baseWhere"/>
@@ -178,7 +198,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     ) AS rn
                 FROM ${tableName} t
                 INNER JOIN ems_base_monitor_info ebmi
-                    ON t.monitorId = ebmi.monitor_code
+                    ON <include refid="monitorJoinCondition"/>
                     AND ebmi.monitor_type = 10
                 <where>
                     <include refid="baseWhere"/>
@@ -211,6 +231,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     <!--
         质量页原始查询：与分析类查询不同，这里不按位移有效值过滤，
         保证质量页分母代表“本次查询实际采到的样本数”。
+        SQL Server 排序规则冲突规避：ON 条件中使用 COLLATE DATABASE_DEFAULT。
     -->
     <sql id="rawQualityQuery">
         SELECT *
@@ -220,7 +241,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     <include refid="selectColumns"/>
                 FROM ${tableName} t
                 INNER JOIN ems_base_monitor_info ebmi
-                    ON t.monitorId = ebmi.monitor_code
+                    ON <include refid="monitorJoinCondition"/>
                     AND ebmi.monitor_type = 10
                 <where>
                     <include refid="baseWhereQuality"/>
@@ -233,6 +254,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     <!--
         质量页抽样查询：仅做时间桶抽样，不做位移有效值过滤，
         避免质量统计在 SQL 层被“分析口径”提前污染。
+        SQL Server 排序规则冲突规避：ON 条件中使用 COLLATE DATABASE_DEFAULT。
     -->
     <sql id="samplingQualityQuery">
         WITH sampled AS (
@@ -256,7 +278,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     ) AS rn
                 FROM ${tableName} t
                 INNER JOIN ems_base_monitor_info ebmi
-                    ON t.monitorId = ebmi.monitor_code
+                    ON <include refid="monitorJoinCondition"/>
                     AND ebmi.monitor_type = 10
                 <where>
                     <include refid="baseWhereQuality"/>