diff --git a/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/controller/OilStatisticsController.java b/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/controller/OilStatisticsController.java
index a14868a..e3351a1 100644
--- a/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/controller/OilStatisticsController.java
+++ b/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/controller/OilStatisticsController.java
@@ -59,10 +59,21 @@ public class OilStatisticsController extends BaseController {
     }
 
     @GetMapping("/getAvgDsByDeptIdsAndDate")
-    public AjaxResult getAvgDsByDeptIdsAndDate(@RequestParam("ids") List<Long> ids, @RequestParam("startDate") String startDate, @RequestParam("endDate") String endDate) {
+    public AjaxResult getAvgDsByDeptIdsAndDate(
+            @RequestParam("ids") List<Long> ids,
+            @RequestParam("startDate") String startDate,
+            @RequestParam("endDate") String endDate,
+            @RequestParam("isDaily") boolean isDaily
+
+    ) {
         Map<Long, Object> resultMap = new HashMap<>();
         for (Long id : ids) {
-            List<Map<String, Object>> result = thDeviceReportMonthService.selectAvgDsByDeptIdAndDate(id, startDate, endDate);
+            List<Map<String, Object>> result;
+            if (isDaily) {
+                result = oilThDeviceReportService.selectAvgDsByDateRange(id, startDate, endDate);
+            } else {
+                result = thDeviceReportMonthService.selectAvgDsByDeptIdAndDate(id, startDate, endDate);
+            }
             resultMap.put(id, result);
         }
         return success(resultMap);
diff --git a/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/mapper/ThDeviceReportMapper.java b/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/mapper/ThDeviceReportMapper.java
index f2ddf4c..d8c48ff 100644
--- a/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/mapper/ThDeviceReportMapper.java
+++ b/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/mapper/ThDeviceReportMapper.java
@@ -83,4 +83,7 @@ public interface ThDeviceReportMapper {
 
     @MapKey("sn")
     List<Map<String, Object>> selectOverLimitCountByYearAndDeptId(@Param("deptId") Long deptId, @Param("year") String year);
+
+    @MapKey("day")
+    List<Map<String, Object>> selectAvgDsByDateRange(@Param("deptId") Long deptId, @Param("beginDate") String beginDate, @Param("endDate") String endDate);
 }
diff --git a/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/service/IOilThDeviceReportService.java b/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/service/IOilThDeviceReportService.java
index a9f36ef..14a45e2 100644
--- a/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/service/IOilThDeviceReportService.java
+++ b/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/service/IOilThDeviceReportService.java
@@ -17,4 +17,6 @@ public interface IOilThDeviceReportService {
     List<Map<String, Object>> selectAlarmCountByDeptIdAndDateRangeDesc(Long deptId, String beginDate, String endDate);
 
     List<Map<String, Object>> selectOverLimitCountByYearAndDeptId(Long deptId, String year);
+
+    List<Map<String, Object>> selectAvgDsByDateRange(Long deptId, String beginDate, String endDate);
 }
diff --git a/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/service/impl/OilThDeviceReportService.java b/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/service/impl/OilThDeviceReportService.java
index 30c6f29..528dcfe 100644
--- a/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/service/impl/OilThDeviceReportService.java
+++ b/RuoYi-Vue-Oracle/src/main/java/com/ruoyi/project/oil/service/impl/OilThDeviceReportService.java
@@ -51,4 +51,9 @@ public class OilThDeviceReportService  implements IOilThDeviceReportService {
         return camelCaseMapListKey(thDeviceReportMapper.selectOverLimitCountByYearAndDeptId(deptId, year));
     }
 
+    @Override
+    public List<Map<String, Object>> selectAvgDsByDateRange(Long deptId, String beginDate, String endDate) {
+        return camelCaseMapListKey(thDeviceReportMapper.selectAvgDsByDateRange(deptId, beginDate, endDate));
+    }
+
 }
diff --git a/RuoYi-Vue-Oracle/src/main/resources/mybatis/oil/ThDeviceReportMapper.xml b/RuoYi-Vue-Oracle/src/main/resources/mybatis/oil/ThDeviceReportMapper.xml
index 3121264..a987737 100644
--- a/RuoYi-Vue-Oracle/src/main/resources/mybatis/oil/ThDeviceReportMapper.xml
+++ b/RuoYi-Vue-Oracle/src/main/resources/mybatis/oil/ThDeviceReportMapper.xml
@@ -271,4 +271,20 @@
     GROUP BY d.sn, td.address, p.dept_name, pp.dept_name, ppp.dept_name
     ORDER BY p.dept_name, pp.dept_name, ppp.dept_name, d.sn
 </select>
+
+    <select id="selectAvgDsByDateRange" parameterType="map" resultType="map">
+        SELECT TO_CHAR(d.report_time, 'YYYY-MM-DD') AS day,
+               ROUND(AVG(TO_NUMBER(d.ds)), 8)       AS avg_value
+        FROM th_device_report d
+        WHERE d.sn IN (SELECT d.sn
+                       FROM th_device d
+                                LEFT JOIN sys_dept p ON d.dept_id = p.dept_id
+                       WHERE d.dept_id IN (SELECT dept_id
+                                           FROM sys_dept START WITH dept_id = #{deptId}
+                                               CONNECT BY PRIOR dept_id = parent_id))
+          AND TRUNC(d.REPORT_TIME) &gt;= TO_DATE(#{beginDate}, 'YYYY-MM-DD')
+          AND TRUNC(d.REPORT_TIME) &lt;= TO_DATE(#{endDate}, 'YYYY-MM-DD')
+        GROUP BY TO_CHAR(d.report_time, 'YYYY-MM-DD')
+        ORDER BY day
+    </select>
 </mapper>
diff --git a/ruoyi-ui/src/views/dataStatistics/comparison/index.vue b/ruoyi-ui/src/views/dataStatistics/comparison/index.vue
index ae7b684..69d155c 100644
--- a/ruoyi-ui/src/views/dataStatistics/comparison/index.vue
+++ b/ruoyi-ui/src/views/dataStatistics/comparison/index.vue
@@ -11,9 +11,9 @@
       <el-col :span="6">
         <el-date-picker
           v-model="dateTimeRange"
-          type="monthrange"
-          format="yyyy-MM"
-          value-format="yyyy-MM"
+          :type="isDaily ? 'daterange' : 'monthrange'"
+          :format="isDaily ? 'yyyy-MM-dd' : 'yyyy-MM'"
+          :value-format="isDaily ? 'yyyy-MM-dd' : 'yyyy-MM'"
           range-separator="至"
           start-placeholder="开始日期"
           end-placeholder="结束日期"
@@ -21,6 +21,9 @@
         >
         </el-date-picker>
       </el-col>
+      <div class="switch-wrapper">
+        <el-checkbox v-model="isDaily">日维度</el-checkbox>
+      </div>
     </el-row>
 
     <el-row :gutter="10" class="chart-wrapper">
@@ -49,12 +52,22 @@ export default {
         id: "comparisonChart",
         Xdata: [],
         Ydata: [],
-        option: {},
+        option: {
+          tooltip: {
+            trigger: "axis",
+            formatter: function (params) {
+              return `${params[0].name}<br />${params
+                .map((item) => `${item.marker} ${item.seriesName}: ${item.value} mg/m³`)
+                .join("<br />")}`;
+            },
+          },
+        },
         series: {
           data: [],
         },
       },
       queryDebounce: null,
+      isDaily: false,
     };
   },
   mounted() {
@@ -66,6 +79,22 @@ export default {
     ];
     this.queryDebounce = debounce(this.query, 100);
   },
+  watch: {
+    isDaily: function (value) {
+      if (value) {
+        this.dateTimeRange = [
+          moment().startOf("month").format("YYYY-MM-DD"),
+          moment().format("YYYY-MM-DD"),
+        ];
+      } else {
+        this.dateTimeRange = [
+          moment().startOf("month").format("YYYY-MM"),
+          moment().format("YYYY-MM"),
+        ];
+      }
+      this.queryDebounce();
+    },
+  },
   methods: {
     handleDateTimeChange() {
       this.queryDebounce();
@@ -89,6 +118,7 @@ export default {
           ids: this.deptIds.join(","),
           startDate: this.dateTimeRange[0],
           endDate: this.dateTimeRange[1],
+          isDaily: this.isDaily,
         })
       );
 
@@ -102,15 +132,19 @@ export default {
         return;
       }
       const { data } = res;
+      const that = this;
       // 按照 month 正确排序
-       function sortDataByMonth(data) {
+      function sortDataByMonth(data) {
         // 遍历对象的每个键
         for (const key in data) {
           if (data.hasOwnProperty(key)) {
             // 对每个键对应的数组进行排序
             data[key].sort((a, b) => {
               // 比较 month 属性
-              return new Date(a.month) - new Date(b.month);
+              // return new Date(a.month) - new Date(b.month);
+              return that.isDaily
+                ? new Date(a.day) - new Date(b.day)
+                : new Date(a.month) - new Date(b.month);
             });
           }
         }
@@ -120,12 +154,15 @@ export default {
 
       this.chartData.series.data = Object.keys(sortedData).map((key) => {
         return {
-          name: this.deptList.find((item) => item.deptId === parseInt(key))?.deptName,
+          name: this.deptList.find((item) => item.deptId === parseInt(key))
+            ?.deptName,
           type: "line",
           data: data[key].map((item) => item.avgValue.toFixed(2)),
         };
       });
-      this.chartData.Xdata = data[Object.keys(data)[0]].map((item) => item.month);
+      this.chartData.Xdata = data[Object.keys(data)[0]].map((item) =>
+        that.isDaily ? item.day : item.month
+      );
     },
   },
 };
@@ -139,4 +176,9 @@ export default {
     margin-top: 20px;
   }
 }
+.switch-wrapper {
+  height: 36px;
+  display: flex;
+  align-items: center;
+}
 </style>