diff --git a/ruoyi-ems/src/main/java/org/dromara/ems/report/service/impl/TempBoardServiceImpl.java b/ruoyi-ems/src/main/java/org/dromara/ems/report/service/impl/TempBoardServiceImpl.java
index 153ec02..52b5bb7 100644
--- a/ruoyi-ems/src/main/java/org/dromara/ems/report/service/impl/TempBoardServiceImpl.java
+++ b/ruoyi-ems/src/main/java/org/dromara/ems/report/service/impl/TempBoardServiceImpl.java
@@ -15,6 +15,7 @@ import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.util.Calendar;
+import java.util.Collections;
 import java.util.Date;
 import java.util.List;
 
@@ -33,6 +34,7 @@ import java.util.List;
 public class TempBoardServiceImpl implements ITempBoardService {
 
     private final TempBoardMapper tempBoardMapper;
+    //RecordIotenvPartitionService 按时间范围解析分表
     private final RecordIotenvPartitionService partitionService;
 
     private static final String DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
@@ -47,7 +49,7 @@ public class TempBoardServiceImpl implements ITempBoardService {
 
     /**
      * 解析查询时间范围并获取分表列表
-     * 包含时间范围硬限制校验
+     * 包含时间范围硬限制校验；无数据表时返回空集合（不抛异常，避免并发请求重复弹错）
      */
     private List<String> resolveTables(TempBoardQueryBo query) {
         if (query.getStartTime() == null || query.getEndTime() == null) {
@@ -59,11 +61,7 @@ public class TempBoardServiceImpl implements ITempBoardService {
         if (diffDays > MAX_QUERY_DAYS) {
             throw new ServiceException("查询跨度不能超过" + MAX_QUERY_DAYS + "天，请缩小范围");
         }
-        List<String> tables = partitionService.resolveTables(query.getStartTime(), query.getEndTime());
-        if (tables.isEmpty()) {
-            throw new ServiceException("所选时间范围内无数据表");
-        }
-        return tables;
+        return partitionService.resolveTables(query.getStartTime(), query.getEndTime());
     }
 
     /** Date → 格式化字符串（兼容旧接口） */
@@ -91,9 +89,13 @@ public class TempBoardServiceImpl implements ITempBoardService {
 
     // ==================== A. 温度总览 ====================
 
+    /** 温度总览（测点数 + 平均温度 + 最高/最低 + TopN + 新鲜度） */
     @Override
     public TempBoardOverviewVo getOverview(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return new TempBoardOverviewVo();
+        }
         String startTime = fmt(query.getStartTime());
         String endTime = fmt(query.getEndTime());
 
@@ -137,164 +139,257 @@ public class TempBoardServiceImpl implements ITempBoardService {
 
     // ==================== B. 实时监控 ====================
 
+    /** 实时温度明细 */
     @Override
     public List<TempBoardRealtimeVo> getRealtimeDetail(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectRealtimeDetail(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 高温测点 */
     @Override
     public List<TempBoardRealtimeVo> getHighTempMonitors(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         double threshold = query.getHighTempThreshold() != null ? query.getHighTempThreshold() : 35.0;
         return tempBoardMapper.selectHighTempMonitors(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), threshold);
     }
 
+    /** 低温测点 */
     @Override
     public List<TempBoardRealtimeVo> getLowTempMonitors(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         double threshold = query.getLowTempThreshold() != null ? query.getLowTempThreshold() : 10.0;
         return tempBoardMapper.selectLowTempMonitors(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), threshold);
     }
 
+    /** 长时间未更新测点 */
     @Override
     public List<TempBoardRealtimeVo> getStaleMonitors(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         int threshold = query.getStaleThresholdSeconds() != null ? query.getStaleThresholdSeconds() : 600;
         return tempBoardMapper.selectStaleMonitors(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), threshold);
     }
 
+    /** 入库延迟排行 */
     @Override
     public List<TempBoardRealtimeVo> getDelayRanking(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectDelayRanking(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
     // ==================== C. 趋势分析 ====================
 
+    /** 单测点分钟趋势 */
     @Override
     public List<TempBoardTrendVo> getMinuteTrend(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectMinuteTrend(tables, query.getMonitorId(),
             fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 单测点小时趋势 */
     @Override
     public List<TempBoardTrendVo> getHourlyTrend(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectHourlyTrend(tables, query.getMonitorId(),
             fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 多测点对比趋势 */
     @Override
     public List<TempBoardTrendVo> getMultiCompareTrend(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectMultiCompareTrend(tables, query.getMonitorIds(),
             fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 日均温趋势 */
     @Override
     public List<TempBoardTrendVo> getDailyTrend(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectDailyTrend(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 温度变化率趋势 */
     @Override
     public List<TempBoardTrendVo> getChangeRateTrend(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectChangeRateTrend(tables, query.getMonitorId(),
             fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 峰谷时刻表 */
     @Override
     public List<TempBoardTrendVo> getPeakValley(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectPeakValley(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
     // ==================== D. 分布分析 ====================
 
+    /** 温度区间分布 */
     @Override
     public List<TempBoardDistributionVo> getIntervalDistribution(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectIntervalDistribution(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 温度直方图 */
     @Override
     public List<TempBoardDistributionVo> getHistogram(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectHistogram(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 温度箱线图原始数据 */
     @Override
     public List<TempBoardDistributionVo> getBoxplotData(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectBoxplotData(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 日历热力图 */
     @Override
     public List<TempBoardDistributionVo> getCalendarHeatmap(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectCalendarHeatmap(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 小时热力图 */
     @Override
     public List<TempBoardDistributionVo> getHourlyHeatmap(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectHourlyHeatmap(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
     // ==================== E. 异常预警 ====================
 
+    /** 高温事件 */
     @Override
     public List<TempBoardAnomalyVo> getHighTempEvents(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         double threshold = query.getHighTempThreshold() != null ? query.getHighTempThreshold() : 35.0;
         return tempBoardMapper.selectHighTempEvents(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), threshold);
     }
 
+    /** 低温事件 */
     @Override
     public List<TempBoardAnomalyVo> getLowTempEvents(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         double threshold = query.getLowTempThreshold() != null ? query.getLowTempThreshold() : 10.0;
         return tempBoardMapper.selectLowTempEvents(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), threshold);
     }
 
+    /** 连续高温时段 */
     @Override
     public List<TempBoardAnomalyVo> getContinuousHighTemp(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         double threshold = query.getHighTempThreshold() != null ? query.getHighTempThreshold() : 35.0;
         return tempBoardMapper.selectContinuousHighTemp(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), threshold);
     }
 
+    /** 温升过快事件 */
     @Override
     public List<TempBoardAnomalyVo> getRapidRiseEvents(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         double threshold = query.getRapidRiseThreshold() != null ? query.getRapidRiseThreshold() : 1.0;
         return tempBoardMapper.selectRapidRiseEvents(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), threshold);
     }
 
+    /** 温度抖动异常 */
     @Override
     public List<TempBoardAnomalyVo> getJitterAnomalies(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         double threshold = query.getStddevThreshold() != null ? query.getStddevThreshold() : 2.0;
         return tempBoardMapper.selectJitterAnomalies(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), threshold);
     }
 
     // ==================== F. 对比分析 ====================
 
+    /** 测点平均温度排行 */
     @Override
     public List<TempBoardComparisonVo> getAvgTempRanking(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectAvgTempRanking(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 测点稳定性排行 */
     @Override
     public List<TempBoardComparisonVo> getStabilityRanking(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectStabilityRanking(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 今日vs昨日对比 */
     @Override
     public List<TempBoardComparisonVo> getDailyDiff(TempBoardQueryBo query) {
         // 今日和昨日的时间范围由 endTime 推算
@@ -326,91 +421,139 @@ public class TempBoardServiceImpl implements ITempBoardService {
         // 合并两天的分表
         List<String> tables = partitionService.resolveTables(yesterdayStart, todayEnd);
         if (tables.isEmpty()) {
-            throw new ServiceException("所选时间范围内无数据表");
+            return Collections.emptyList();
         }
 
         return tempBoardMapper.selectDailyDiff(tables,
             fmt(todayStart), fmt(todayEnd), fmt(yesterdayStart), fmt(yesterdayEnd));
     }
 
+    /** 峰值对比 */
     @Override
     public List<TempBoardComparisonVo> getPeakCompare(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectPeakCompare(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 波动幅度对比 */
     @Override
     public List<TempBoardComparisonVo> getFluctuationCompare(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectFluctuationCompare(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
     // ==================== G. 数据质量 ====================
 
+    /** 入库延迟分布 */
     @Override
     public List<TempBoardQualityVo> getDelayDistribution(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectDelayDistribution(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 时间逆序可疑数据 */
     @Override
     public List<TempBoardQualityVo> getTimeReversal(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectTimeReversal(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 采样间隔异常 */
     @Override
     public List<TempBoardQualityVo> getSamplingGapAnomalies(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         int threshold = query.getGapThresholdSeconds() != null ? query.getGapThresholdSeconds() : 300;
         return tempBoardMapper.selectSamplingGapAnomalies(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), threshold);
     }
 
+    /** 数据完整率 */
     @Override
     public List<TempBoardQualityVo> getCompletenessRate(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         int expectedCount = query.getExpectedSampleCount() != null ? query.getExpectedSampleCount() : 1440;
         return tempBoardMapper.selectCompletenessRate(tables, fmt(query.getStartTime()), fmt(query.getEndTime()), expectedCount);
     }
 
+    /** 测点活跃度 */
     @Override
     public List<TempBoardQualityVo> getMonitorActivity(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectMonitorActivity(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
-    // ==================== H. 高级分析（已优化） ====================
+    // ==================== H. 高级分析 ====================
 
+    /** 桑基图数据 */
     @Override
     public List<TempBoardAdvancedVo> getSankeyData(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectSankeyData(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 主题河流图数据 */
     @Override
     public List<TempBoardAdvancedVo> getThemeRiverData(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         // 根据时间跨度自动选择聚合粒度
         String granularity = resolveGranularity(query);
         return tempBoardMapper.selectThemeRiverData(
             tables, fmt(query.getStartTime()), fmt(query.getEndTime()), granularity);
     }
 
+    /** 矩形树图数据 */
     @Override
     public List<TempBoardAdvancedVo> getTreemapData(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectTreemapData(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 旭日图数据 */
     @Override
     public List<TempBoardAdvancedVo> getSunburstData(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectSunburstData(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 
+    /** 平行坐标图数据 */
     @Override
     public List<TempBoardAdvancedVo> getParallelData(TempBoardQueryBo query) {
         List<String> tables = resolveTables(query);
+        if (tables.isEmpty()) {
+            return Collections.emptyList();
+        }
         return tempBoardMapper.selectParallelData(tables, fmt(query.getStartTime()), fmt(query.getEndTime()));
     }
 }