diff --git a/src/main/java/com/xydl/cac/controller/NSensorController.java b/src/main/java/com/xydl/cac/controller/NSensorController.java
index c230132..65e76ac 100644
--- a/src/main/java/com/xydl/cac/controller/NSensorController.java
+++ b/src/main/java/com/xydl/cac/controller/NSensorController.java
@@ -27,6 +27,7 @@ import javax.servlet.http.HttpServletResponse;
 import javax.validation.constraints.NotNull;
 import java.net.URLEncoder;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -191,15 +192,23 @@ public class NSensorController extends BasicController {
         response.setCharacterEncoding("utf-8");
         List<NSensor> result = service.listAll(zsbid);
 
-        String excelName = "";
-        if (null != result && result.size() > 0) {
-            NSensor nSensor = result.get(0);
-            excelName = nSensor.getZsbName() + "的最新数据";
+        Map<Integer, List<NSensor>> map = new HashMap<>();
+        for (NSensor nSensor : result) {
+            if (map.containsKey(nSensor.getTypeId())) {
+                map.get(nSensor.getTypeId()).add(nSensor);
+            } else {
+                List<NSensor> list = new ArrayList<>();
+                list.add(nSensor);
+                map.put(nSensor.getTypeId(), list);
+            }
         }
+
+        String excelName = "传感器的最新数据";
+
         response.setHeader("Content-Disposition", "attachment; filename="
                 + URLEncoder.encode(excelName + ".xlsx", "UTF-8"));
 
-        reportService.exportLatest(result, response.getOutputStream());
+        reportService.exportLatest(map, response.getOutputStream());
 
     }
 
diff --git a/src/main/java/com/xydl/cac/service/ReportService.java b/src/main/java/com/xydl/cac/service/ReportService.java
index 53453fd..bf84f78 100644
--- a/src/main/java/com/xydl/cac/service/ReportService.java
+++ b/src/main/java/com/xydl/cac/service/ReportService.java
@@ -16,5 +16,5 @@ public interface ReportService {
 
     void importCac(InputStream input) throws Exception;
 
-    void exportLatest(List<NSensor> result, OutputStream output) throws Exception;
+    void exportLatest(Map<Integer, List<NSensor>> map, OutputStream output) throws Exception;
 }
diff --git a/src/main/java/com/xydl/cac/service/impl/ReportServiceImpl.java b/src/main/java/com/xydl/cac/service/impl/ReportServiceImpl.java
index fee7012..7eef80f 100644
--- a/src/main/java/com/xydl/cac/service/impl/ReportServiceImpl.java
+++ b/src/main/java/com/xydl/cac/service/impl/ReportServiceImpl.java
@@ -108,66 +108,61 @@ public class ReportServiceImpl implements ReportService {
     }
 
     @Override
-    public void exportLatest(List<NSensor> result, OutputStream output) throws Exception {
+    public void exportLatest(Map<Integer, List<NSensor>> map, OutputStream output) throws Exception {
 
         // 导出Excel
         ExcelWriter excelWriter = EasyExcel.write(output).inMemory(true)
                 .registerWriteHandler(new LongestMatchColumnWidthStyleStrategy()).build();
 
-        Map<Integer, List<NSensor>> map = new HashMap<>();
-        for (NSensor nSensor : result) {
-            if (map.containsKey(nSensor.getTypeId())) {
-                map.get(nSensor.getTypeId()).add(nSensor);
-            } else {
-                List<NSensor> list = new ArrayList<>();
-                list.add(nSensor);
-                map.put(nSensor.getTypeId(), list);
-            }
-        }
 
-        int i = 0;
+        int idx = 0;
         for (Integer key : map.keySet()) {
             List<NSensor> nSensors = map.get(key);
 
-            // 表头
-            List<List<String>> heads = new ArrayList<>();
-            List<String> head = new ArrayList<>();
-            head.add("主设备名称");
-            heads.add(head);
+            this.writerSheetLatest(excelWriter, idx, nSensors);
+
+            idx++;
+        }
+
+        excelWriter.finish();
+    }
+
+    public void writerSheetLatest(ExcelWriter excelWriter, int idx, List<NSensor> nSensors) {
+        // 表头
+        List<List<String>> heads = new ArrayList<>();
+        List<String> head = new ArrayList<>();
+        head.add("主设备名称");
+        heads.add(head);
+        head = new ArrayList<>();
+        head.add("时间");
+        heads.add(head);
+        for (ModevTypePoint point : nSensors.get(0).getTypePoints()) {
             head = new ArrayList<>();
-            head.add("时间");
+            head.add(point.getFieldDesc() + "(" + point.getUnit() + ")");
             heads.add(head);
-            for (ModevTypePoint point : nSensors.get(0).getTypePoints()) {
-                head = new ArrayList<>();
-                head.add(point.getFieldDesc() + "(" + point.getUnit() + ")");
-                heads.add(head);
-            }
+        }
 
-            // 内容
-            List<List<String>> list = new ArrayList<>();
-            for (NSensor nSensor : nSensors) {
-                List<String> line = new ArrayList<>();
-                line.add(nSensor.getZsbName());
-                HashMap<String, String> lastData = nSensor.getLastData();
-                if (null != lastData) {
-                    String acquisitionTime = nSensor.getLastData().get("acquisitionTime");
-                    line.add(acquisitionTime);
-                    for (ModevTypePoint typePoint : nSensor.getTypePoints()) {
-                        line.add(lastData.get(typePoint.getField()));
-                    }
+        // 内容
+        List<List<String>> list = new ArrayList<>();
+        for (NSensor nSensor : nSensors) {
+            List<String> line = new ArrayList<>();
+            line.add(nSensor.getZsbName());
+            HashMap<String, String> lastData = nSensor.getLastData();
+            if (null != lastData) {
+                String acquisitionTime = nSensor.getLastData().get("acquisitionTime");
+                line.add(acquisitionTime);
+                for (ModevTypePoint typePoint : nSensor.getTypePoints()) {
+                    line.add(lastData.get(typePoint.getField()));
                 }
-                list.add(line);
             }
-
-            WriteSheet writeSheet = EasyExcel.writerSheet(i, key + "")
-                    .head(heads)
-                    .build();
-
-            excelWriter.write(list, writeSheet);
-            i++;
+            list.add(line);
         }
 
-        excelWriter.finish();
+        WriteSheet writeSheet = EasyExcel.writerSheet(idx, nSensors.get(0).getTypeName())
+                .head(heads)
+                .build();
+
+        excelWriter.write(list, writeSheet);
     }
 
 }