From e7af0cdd75430765fcb880fa32391847eb6e615d Mon Sep 17 00:00:00 2001
From: liusuyi <1951119284@qq.com>
Date: Mon, 29 Dec 2025 14:40:59 +0800
Subject: [PATCH] 优化

---
 ard-work/src/main/java/com/ard/work/service/impl/ArdFlightTaskPartServiceImpl.java |   56 ++++++++++++++++++++++++++++++++++++++++++--------------
 1 files changed, 42 insertions(+), 14 deletions(-)

diff --git a/ard-work/src/main/java/com/ard/work/service/impl/ArdFlightTaskPartServiceImpl.java b/ard-work/src/main/java/com/ard/work/service/impl/ArdFlightTaskPartServiceImpl.java
index 9985e7e..da66e03 100644
--- a/ard-work/src/main/java/com/ard/work/service/impl/ArdFlightTaskPartServiceImpl.java
+++ b/ard-work/src/main/java/com/ard/work/service/impl/ArdFlightTaskPartServiceImpl.java
@@ -1,6 +1,7 @@
 package com.ard.work.service.impl;
 
 import cn.hutool.core.util.SerializeUtil;
+import com.ard.common.utils.DateUtils;
 import com.ard.work.domain.cache.UavStateCache;
 import com.ard.work.domain.cache.UavTelemetryDataCache;
 import com.ard.work.domain.dto.UavFlightStateDTO;
@@ -14,10 +15,13 @@
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
+
 import java.util.ArrayList;
+import java.util.Comparator;
 import java.util.Date;
 import java.util.List;
 import java.util.concurrent.ConcurrentHashMap;
+
 /**
  * 轨迹分片处理业务
  */
@@ -27,7 +31,8 @@
 public class ArdFlightTaskPartServiceImpl implements IArdFlightTaskPartService {
 
     private final ArdFlightTaskPartMapper ardflightTaskPartMapper;
-
+    // 上一次飞行状态缓存
+    private final ConcurrentHashMap<String, Integer> lastFlightStatusMap = new ConcurrentHashMap<>();
     /**
      * 缓存:boxSn -> 当前分片数据
      */
@@ -40,24 +45,40 @@
 
     /**
      * 定时任务:每秒读取一次设备状态数据
-     * 注意:这里模拟读取状态,实际应该调用设备接口或缓存
      */
     @Scheduled(fixedRate = 1000)
     public void readTelemetryTask() {
+        long now = System.currentTimeMillis();
         UavTelemetryDataCache.forEach((boxSn, telemetryData) -> {
-
-            // 从状态缓存里取当前状态
+            // 1️⃣ 从状态缓存里取当前状态
             UavState uavState = UavStateCache.get(boxSn);
             if (uavState == null) {
+                log.warn("状态不存在,不记录");
                 return; // 状态不存在,不记录
             }
 
-            UavFlightStateDTO dto = new UavFlightStateDTO(
-                    uavState,
-                    telemetryData
-            );
+            // 2️⃣ 使用遥测自身时间戳判断是否还活着
+            long dataTs = telemetryData.getTimestamp(); // 设备时间 / 服务器接收时间
+            if (now - dataTs > 3000) {
+                log.warn("超过 3 秒没有新遥测 → 认为已离线或冻结,不记录:{}", new Date(dataTs));
+                return; // 超过 3 秒没有新遥测 → 认为已离线或冻结,不记录
+            }
 
-            addTelemetryData(dto);
+            int currentStatus = uavState.getFlightControllerState().getFlightStatus();
+            Integer lastStatus = lastFlightStatusMap.get(boxSn);
+
+            // 仅在“飞行中 → 非飞行中”状态变化时 flush
+            if (lastStatus != null && lastStatus == 2 && currentStatus != 2) {
+                flushRemaining(boxSn);
+            }
+            lastFlightStatusMap.put(boxSn, currentStatus);
+            log.debug("设备 {} 当前状态为:{}", boxSn, currentStatus);
+            // 只有飞行中才添加缓存
+            if (currentStatus == 2) {
+                log.warn("设备 {} 当前状态为飞行中,添加遥测数据到缓存", boxSn);
+                UavFlightStateDTO dto = new UavFlightStateDTO(uavState, telemetryData, dataTs);
+                addTelemetryData(dto);
+            }
         });
     }
 
@@ -88,11 +109,15 @@
 
         try {
             byte[] blobData = SerializeUtil.serialize(dataList);
-
+            // 取第一个和最后一个状态时间
+            long startTs = dataList.get(0).getTimestamp();
+            long endTs = dataList.get(dataList.size() - 1).getTimestamp();
             ArdFlightTaskPart part = ArdFlightTaskPart.builder()
                     .boxSn(boxSn)
                     .count(dataList.size())
                     .dataPart(blobData)
+                    .startTime(new Date(startTs))
+                    .endTime(new Date(endTs))
                     .build();
             part.setCreateTime(new Date());
             ardflightTaskPartMapper.insert(part);
@@ -123,18 +148,21 @@
      * 获取完整航线轨迹(合并所有分片)
      */
     @Override
-    public List<TelemetryData> getCompleteFlightData(ArdFlightTaskPart ardFlightTaskPart) {
-        List<TelemetryData> allData = new ArrayList<>();
+    public List<UavFlightStateDTO> getCompleteFlightData(ArdFlightTaskPart ardFlightTaskPart) {
+        List<UavFlightStateDTO> allData = new ArrayList<>();
         String boxSn = ardFlightTaskPart.getBoxSn();
-        List<ArdFlightTaskPart> parts = ardflightTaskPartMapper.selectByTaskStartTime(ardFlightTaskPart);
+        List<ArdFlightTaskPart> parts = ardflightTaskPartMapper.selectByTimeRange(ardFlightTaskPart);
         for (ArdFlightTaskPart part : parts) {
             try {
-                List<TelemetryData> partData = SerializeUtil.deserialize(part.getDataPart());
+                List<UavFlightStateDTO> partData = SerializeUtil.deserialize(part.getDataPart());
                 allData.addAll(partData);
             } catch (Exception e) {
                 log.error("反序列化 boxSn={} 分片数据失败", boxSn, e);
             }
         }
+        // 按 telemetryData.timestamp 升序排序
+        allData.sort(Comparator.comparingLong(dto -> dto.getTelemetryData().getTimestamp()));
+
         return allData;
     }
 }

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