diff --git a/src/main/java/com/sample/trend/config/CommonConstant.java b/src/main/java/com/sample/trend/config/CommonConstant.java
new file mode 100644
index 0000000..a54adfc
--- /dev/null
+++ b/src/main/java/com/sample/trend/config/CommonConstant.java
@@ -0,0 +1,24 @@
+package com.sample.trend.config;
+
+import vip.uuquant.exhangeapi.core.ExchangeFactory;
+import vip.uuquant.exhangeapi.core.HttpClient;
+import vip.uuquant.exhangeapi.core.WebSocketManager;
+
+/**
+ * 交易所客户端全局单例
+ */
+public class CommonConstant {
+
+    public static final HttpClient httpClient = HttpClient.builder().build();
+
+    public static final WebSocketManager webSocketManager = new WebSocketManager(httpClient);
+
+    public static final ExchangeFactory exchangeFactory = new ExchangeFactory();
+
+    static {
+        webSocketManager.setLogEnabled(false);
+    }
+
+    private CommonConstant() {
+    }
+}
diff --git a/src/main/java/com/sample/trend/strategy/AutoGridStrategy.java b/src/main/java/com/sample/trend/strategy/AutoGridStrategy.java
index c9ab60a..c7e7961 100644
--- a/src/main/java/com/sample/trend/strategy/AutoGridStrategy.java
+++ b/src/main/java/com/sample/trend/strategy/AutoGridStrategy.java
@@ -3,226 +3,275 @@ package com.sample.trend.strategy;
 import com.alibaba.fastjson2.JSONArray;
 import com.alibaba.fastjson2.JSONObject;
 import com.hengyi.xbaseweb.common.result.ApiResult;
+import com.sample.trend.config.CommonConstant;
+import com.sample.trend.strategy.util.AtrCalculator;
+import okhttp3.Response;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import vip.uuquant.exhangeapi.enums.*;
+import vip.uuquant.exhangeapi.core.WebSocketConnectionStatus;
+import vip.uuquant.exhangeapi.core.WebSocketMessageHandler;
+import vip.uuquant.exhangeapi.enums.ExchangeType;
+import vip.uuquant.exhangeapi.enums.MarginType;
+import vip.uuquant.exhangeapi.enums.OrderSide;
+import vip.uuquant.exhangeapi.enums.OrderStatus;
+import vip.uuquant.exhangeapi.enums.PositionSide;
+import vip.uuquant.exhangeapi.enums.PositionStatus;
+import vip.uuquant.exhangeapi.enums.QtyUnitType;
+import vip.uuquant.exhangeapi.impl.bitget.BitGetClient;
 import vip.uuquant.tradesystem.runner.enums.AlarmLevel;
-import vip.uuquant.tradesystem.runner.enums.MessagePushType;
 import vip.uuquant.tradesystem.runner.enums.RobotChartType;
 import vip.uuquant.tradesystem.runner.strategy.BaseStrategy;
-import vip.uuquant.tradesystem.runner.vo.*;
+import vip.uuquant.tradesystem.runner.vo.AccountVO;
+import vip.uuquant.tradesystem.runner.vo.RobotVO;
+import vip.uuquant.tradesystem.runner.vo.SymbolVO;
 
 import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
 
 /**
- * @author dongzp
- * @desc 策略示例，展示所有API调用方法
- **/
+ * 基于 ATR 的动态网格策略（只做多）。
+ * <p>
+ * 网格间距 = atr_multiplier × ATR，并限制在 [min_gap, max_gap] 区间。
+ * 采用限价挂单买入，市价止盈卖出。
+ * 网格间距变化时不撤销已有挂单，已成交仓位按最新间距计算止盈价。
+ */
 public class AutoGridStrategy extends BaseStrategy {
-    // 日志
+
+    private static final String MARGIN_MODE = "crossed";
+
     private final Logger logger = LoggerFactory.getLogger(AutoGridStrategy.class);
 
-    // 图表对象
-    private Integer textChart;
-    private Integer tableChart;
-    private Integer barChart;
+    // 运行参数
+    private BigDecimal baseQuantity;
+    private BigDecimal atrMultiplier;
+    private String klineInterval;
+    private int klinePeriod;
+    private int gridAdjustIntervalMinutes;
+    private BigDecimal minGap;
+    private BigDecimal maxGap;
+    private BigDecimal upperBound;
+    private BigDecimal lowerBound;
+    private boolean testMode;
+    private int leverage;
+    /** 最大待成交买单数量 */
+    private int gridCount;
 
-    // 定时任务ID
-    private String taskId;
+    // 精度
+    private int pricePrecision = 2;
+    private int quantityPrecision = 4;
+
+    // 交易所
+    private BitGetClient bitGetClient;
+
+    // 网格状态
+    private volatile BigDecimal currentPrice;
+    private volatile BigDecimal currentAtr;
+    private volatile BigDecimal currentGridGap;
+    private volatile long lastGridAdjustTime;
+    private volatile boolean upperBoundPaused;
+    private volatile boolean lowerBoundPaused;
+
+    /** 待成交买单：key = 网格价格字符串 */
+    private final Map<String, GridBuyOrder> pendingBuyOrders = new ConcurrentHashMap<>();
+    /** 已成交待止盈的多头仓位 */
+    private final List<GridPosition> openPositions = new CopyOnWriteArrayList<>();
+    /** 正在平仓中的仓位，防止重复触发 */
+    private final Map<String, Boolean> closingPositions = new ConcurrentHashMap<>();
+
+    private final Object tradeLock = new Object();
+
+    // 图表
+    private Integer statusChart;
+    private Integer gridTableChart;
+
+    private Long robotId;
+
+    // ======================== 内部模型 ========================
+
+    private static class GridBuyOrder {
+        private final String clientOrderId;
+        private volatile String exchangeOrderId;
+        private final BigDecimal buyPrice;
+
+        GridBuyOrder(String clientOrderId, BigDecimal buyPrice) {
+            this.clientOrderId = clientOrderId;
+            this.buyPrice = buyPrice;
+        }
+    }
+
+    private static class GridPosition {
+        private final String clientPositionId;
+        private final BigDecimal entryPrice;
+        private final BigDecimal quantity;
+
+        GridPosition(String clientPositionId, BigDecimal entryPrice, BigDecimal quantity) {
+            this.clientPositionId = clientPositionId;
+            this.entryPrice = entryPrice;
+            this.quantity = quantity;
+        }
+
+        BigDecimal takeProfitPrice(BigDecimal gridGap) {
+            return entryPrice.add(gridGap);
+        }
+    }
+
+    // ======================== WebSocket ========================
+
+    private final WebSocketMessageHandler webSocketMessageHandler = new WebSocketMessageHandler() {
+
+        @Override
+        public void onOpen(String connectionId, Response response) {
+            logger.info("WebSocket 连接成功：{}", connectionId);
+            if (connectionId.equals(bitGetClient.getPublicConnectionId())) {
+                bitGetClient.subscribeTicker(getSymbol());
+            } else {
+                bitGetClient.login();
+                bitGetClient.subscribeFill();
+                bitGetClient.subscribeOrders();
+            }
+        }
+
+        @Override
+        public void onMessage(String connectionId, String message) {
+            if ("pong".equals(message)) {
+                return;
+            }
+            try {
+                JSONObject json = JSONObject.parseObject(message);
+                if (!json.containsKey("action")) {
+                    return;
+                }
+                String action = json.getString("action");
+                JSONObject arg = json.getJSONObject("arg");
+                if (arg == null) {
+                    return;
+                }
+                String channel = arg.getString("channel");
+                JSONArray data = json.getJSONArray("data");
+                if (data == null || data.isEmpty()) {
+                    return;
+                }
+
+                if ("ticker".equals(channel)) {
+                    handleTicker(data.getJSONObject(0));
+                } else if ("fill".equals(channel)
+                        && ("snapshot".equals(action) || "update".equals(action))) {
+                    handleFill(data.getJSONObject(0));
+                } else if ("orders".equals(channel)
+                        && ("snapshot".equals(action) || "update".equals(action))) {
+                    handleOrderUpdate(data.getJSONObject(0));
+                }
+            } catch (Exception e) {
+                logger.error("WebSocket 消息处理异常", e);
+            }
+        }
+
+        @Override
+        public void onClosing(String connectionId, int code, String reason) {
+            logger.warn("WebSocket 关闭中：{} {} {}", connectionId, code, reason);
+        }
+
+        @Override
+        public void onClosed(String connectionId, int code, String reason) {
+            logger.warn("WebSocket 已关闭：{} {} {}", connectionId, code, reason);
+        }
+
+        @Override
+        public void onFailure(String connectionId, Throwable throwable, Response response) {
+            logger.error("WebSocket 异常：{}", connectionId, throwable);
+        }
+
+        @Override
+        public void onStatusChange(String connectionId, WebSocketConnectionStatus oldStatus,
+                                   WebSocketConnectionStatus newStatus) {
+            logger.info("WebSocket 状态变化：{} {} -> {}", connectionId, oldStatus, newStatus);
+        }
+    };
+
+    // ======================== 生命周期 ========================
 
     @Override
     public void init(JSONObject context) {
         super.init(context);
-        logger.info("策略初始化开始");
+        logger.info("ATR 动态网格策略初始化");
 
-        try {
-            // 1. 检查运行参数
-            boolean check = checkParams("a17640829211617765");
-            logger.info("参数检查结果：{}", check);
+        tryParams("base_quantity", "atr_multiplier", "kline_interval", "kline_period",
+                "grid_adjust_interval", "min_gap", "max_gap", "upper_bound", "lower_bound",
+                "grid_count", "testMode");
 
-            // 2. 检查运行参数，不存在则抛出异常
-            tryParams("a17640829211617765");
-
-            // 3. 获取运行参数
-            JSONObject runParams = getRunParams();
-            logger.info("运行参数：{}", runParams);
-
-            // 4. 获取交易对和币符号
-            String symbol = getSymbol();
-            String instrument = getInstrument();
-            logger.info("交易对：{}，币符号：{}", symbol, instrument);
-
-            // 5. 获取账户信息
-            AccountVO account = getAccount();
-            if (account != null) {
-                logger.info("账户信息：{}", account.getName());
-            }
-
-            // 6. 获取策略信息
-            StrategyVO strategy = getStrategy();
-            if (strategy != null) {
-                logger.info("策略信息获取成功");
-            }
-
-            // 7. 获取托管服务器信息
-            AgentVO agent = getAgent();
-            if (agent != null) {
-                logger.info("Agent信息获取成功");
-            }
-
-            SymbolVO symbolVO = getSymbolInfo();
-            if (symbolVO != null) {
-                logger.info("获取交易对信息成功");
-            }
-
-            // 8. 创建文字图表
-            textChart = createChart(RobotChartType.TEXT, "显示时间", 1, 1, 24);
-            logger.info("文字图表创建成功，dataId：{}", textChart);
-
-            // 9. 创建表格图表
-            tableChart = createChart(RobotChartType.TABLE, "数据表格", 2, 2, 12);
-            logger.info("表格图表创建成功，dataId：{}", tableChart);
-
-            // 10. 创建柱状图图表
-            barChart = createChart(RobotChartType.CHART, "统计图表", 3, 3, 12);
-            logger.info("柱状图图表创建成功，dataId：{}", barChart);
-
-            // 11. 保存共享数据
-            JSONObject sharedData = new JSONObject();
-            sharedData.put("key1", "value1");
-            sharedData.put("key2", 123);
-            AgentResult result = putSharedData("testKey", sharedData);
-            logger.info("保存共享数据结果：code={}, msg={}", result.getCode(), result.getMsg());
-
-            // 12. 创建定时任务（每600秒执行一次，延迟5秒开始）
-            taskId = createTask(this::syncAccount, 5, 600);
-            logger.info("定时任务创建成功，taskId：{}", taskId);
-
-            // 13. 提交告警信息
-            AgentResult alarmResult = submitAlarm("策略初始化", "策略初始化完成", AlarmLevel.INFO);
-            logger.info("提交告警结果：code={}, msg={}", alarmResult.getCode(), alarmResult.getMsg());
-
-            // 提交订单信息
-            submitOrderExample();
-
-            // 提交持仓信息
-            submitPositionExample();
-
-            logger.info("策略初始化完成");
-        } catch (Exception e) {
-            logger.error("策略初始化异常", e);
+        baseQuantity = getRunParams().getBigDecimal("base_quantity");
+        atrMultiplier = getRunParams().getBigDecimal("atr_multiplier");
+        klineInterval = getRunParams().getString("kline_interval");
+        klinePeriod = getRunParams().getInteger("kline_period");
+        gridAdjustIntervalMinutes = getRunParams().getInteger("grid_adjust_interval");
+        minGap = getRunParams().getBigDecimal("min_gap");
+        maxGap = getRunParams().getBigDecimal("max_gap");
+        upperBound = getRunParams().getBigDecimal("upper_bound");
+        lowerBound = getRunParams().getBigDecimal("lower_bound");
+        testMode = getRunParams().getBooleanValue("testMode");
+        leverage = getRunParams().getIntValue("leverage");
+        if (leverage <= 0) {
+            leverage = 10;
         }
+        gridCount = getRunParams().getInteger("grid_count");
+        if (gridCount <= 0) {
+            throw new IllegalArgumentException("grid_count 必须大于 0");
+        }
+
+        if (lowerBound.compareTo(upperBound) >= 0) {
+            throw new IllegalArgumentException("lower_bound 必须小于 upper_bound");
+        }
+
+        SymbolVO symbolInfo = getSymbolInfo();
+        if (symbolInfo != null) {
+            if (symbolInfo.getPricePrecision() != null) {
+                pricePrecision = symbolInfo.getPricePrecision();
+            }
+            if (symbolInfo.getQuantityPrecision() != null) {
+                quantityPrecision = symbolInfo.getQuantityPrecision();
+            }
+        }
+
+        RobotVO robotInfo = getRobotInfo();
+        if (robotInfo != null) {
+            robotId = robotInfo.getRobotId();
+        }
+
+        initBitGetClient();
+        initCharts();
+
+        refreshGridGap(true);
+        syncOpenOrdersFromExchange();
+        placeInitialBuyGrids();
+
+        createTask(this::syncAccount, 5, 600);
+        submitAlarm("策略初始化", String.format("ATR 动态网格策略启动，交易对：%s，初始网格间距：%s",
+                getSymbol(), formatPrice(currentGridGap)), AlarmLevel.INFO);
+        logger.info("策略初始化完成，网格间距：{}，ATR：{}", currentGridGap, currentAtr);
     }
 
     @Override
     public void run() {
+        if (currentPrice == null) {
+            fetchCurrentPriceFromRest();
+        }
+        if (currentPrice == null || currentGridGap == null) {
+            return;
+        }
+
         try {
-            logger.info("策略运行中，当前时间：{}", LocalDateTime.now());
-
-            // 1. 更新文字图表
-            JSONObject textStyle = new JSONObject();
-            textStyle.put("color", "red");
-            textStyle.put("fontSize", "16px");
-            textStyle.put("fontWeight", "bold");
-            String currentTime = LocalDateTime.now().toString();
-            ApiResult result = updateText(textChart, "当前时间：" + currentTime, textStyle);
-            logger.info("更新文字图表结果：code={}, msg={}", result.getCode(), result.getMsg());
-
-            // 2. 更新表格图表
-            JSONArray tableData = new JSONArray();
-            for (int i = 0; i < 3; i++) {
-                JSONObject row = new JSONObject();
-                row.put("name", "用户" + (i + 1));
-                row.put("sex", i % 2 == 0 ? "男" : "女");
-                row.put("datetime", LocalDateTime.now().toString());
-                row.put("address", "地址" + (i + 1));
-                tableData.add(row);
-            }
-
-            JSONObject tableOption = new JSONObject();
-            tableOption.put("height", 300);
-            JSONArray columns = new JSONArray();
-
-            JSONObject col1 = new JSONObject();
-            col1.put("label", "姓名");
-            col1.put("prop", "name");
-            col1.put("width", 200);
-            col1.put("fixed", true);
-            columns.add(col1);
-
-            JSONObject col2 = new JSONObject();
-            col2.put("label", "性别");
-            col2.put("prop", "sex");
-            col2.put("width", 300);
-            columns.add(col2);
-
-            JSONObject col3 = new JSONObject();
-            col3.put("label", "日期");
-            col3.put("prop", "datetime");
-            col3.put("width", 300);
-            columns.add(col3);
-
-            JSONObject col4 = new JSONObject();
-            col4.put("label", "地址");
-            col4.put("prop", "address");
-            col4.put("width", 300);
-            columns.add(col4);
-
-            tableOption.put("column", columns);
-            ApiResult apiResult = updateTable(tableChart, tableData, tableOption);
-            logger.info("更新表格图表结果：code={}, msg={}", apiResult.getCode(), apiResult.getMsg());
-
-            // 3. 更新柱状图图表
-            JSONObject chartOptions = new JSONObject();
-            JSONObject xAxis = new JSONObject();
-            xAxis.put("type", "category");
-            JSONArray xData = new JSONArray();
-            xData.add("Mon");
-            xData.add("Tue");
-            xData.add("Wed");
-            xData.add("Thu");
-            xData.add("Fri");
-            xData.add("Sat");
-            xData.add("Sun");
-            xAxis.put("data", xData);
-            chartOptions.put("xAxis", xAxis);
-
-            JSONObject yAxis = new JSONObject();
-            yAxis.put("type", "value");
-            chartOptions.put("yAxis", yAxis);
-
-            JSONArray series = new JSONArray();
-            JSONObject seriesItem = new JSONObject();
-            JSONArray seriesData = new JSONArray();
-            seriesData.add(120);
-            seriesData.add(200);
-            seriesData.add(150);
-            seriesData.add(80);
-            seriesData.add(70);
-            seriesData.add(110);
-            seriesData.add(130);
-            seriesItem.put("data", seriesData);
-            seriesItem.put("type", "bar");
-            series.add(seriesItem);
-            chartOptions.put("series", series);
-
-            ApiResult apiResult1 = updateEChart(barChart, chartOptions);
-            logger.info("更新柱状图图表结果：code={}, msg={}", apiResult1.getCode(), apiResult1.getMsg());
-
-            // 4. 更新账户余额（示例）
-            updateAccountBalance(new BigDecimal("10000.00"), new BigDecimal("8000.00"), new BigDecimal("2000.00"));
-
-            // 5. 发送通知到平台
-            // AgentResult notifyResult = sendNotify(200, "策略运行正常", "当前时间：" + LocalDateTime.now());
-            // logger.info("发送通知结果：code={}", notifyResult.getCode());
-
-            // 6. 获取共享数据
-            JSONObject sharedData = getSharedData("testKey");
-            if (sharedData != null) {
-                logger.info("获取共享数据：{}", sharedData);
-            }
-
+            checkPriceBounds();
+            refreshGridGap(false);
+            processTakeProfit();
+            replenishBuyGrids();
+            updateDashboard();
         } catch (Exception e) {
             logger.error("策略运行异常", e);
         }
@@ -230,142 +279,642 @@ public class AutoGridStrategy extends BaseStrategy {
 
     @Override
     public void notify(JSONObject data) {
-        logger.info("策略收到通知：{}", data);
-
-        try {
-            // 1. 提交告警信息
-            String title = "收到通知";
-            String content = "通知内容：" + data.toJSONString();
-            AgentResult alarmResult = submitAlarm(title, content, AlarmLevel.INFO);
-            logger.info("提交告警结果：code={}, msg={}", alarmResult.getCode(), alarmResult.getMsg());
-
-            // 2. 获取共享数据
-            JSONObject sharedData = getSharedData("testKey");
-            if (sharedData != null) {
-                logger.info("共享数据：{}", sharedData);
-            }
-
-            // 3. 发送通知到平台
-            AgentResult notifyResult = sendNotify(200, "已收到通知", data.toJSONString());
-            logger.info("发送通知结果：code={}", notifyResult.getCode());
-
-            // 发送一个异常告警
-            AgentResult alarmResult1 = submitAlarm("策略异常", "策略异常，请检查", AlarmLevel.ERROR);
-            logger.info("提交告警结果：code={}", alarmResult1.getCode());
-
-        } catch (Exception e) {
-            logger.error("处理通知异常", e);
-        }
+        logger.info("收到平台通知：{}", data);
     }
 
     @Override
     public void destroy() {
-        logger.info("策略销毁开始");
-
+        logger.info("策略销毁");
         try {
-            // 1. 删除所有图表
             removeChart(null);
-
-            // 2. 删除共享数据
-            AgentResult result = removeSharedData("testKey");
-            logger.info("删除共享数据结果：code={}", result.getCode());
-
-            // 3. 删除定时任务
-            if (taskId != null) {
-                removeTask(taskId);
-                logger.info("删除定时任务：{}", taskId);
-            }
-
-            // 4. 删除所有定时任务
-            // removeAllTask();
-
-            // 5. 提交告警信息
-            AgentResult alarmResult = submitAlarm("策略销毁", "策略正在销毁", AlarmLevel.WARNING);
-            logger.info("提交告警结果：code={}", alarmResult.getCode());
-
-            // 发送邮件
-            pushMessageExample();
-
-            logger.info("策略销毁完成");
+            removeAllTask();
+            CommonConstant.webSocketManager.closeAll();
+            submitAlarm("策略销毁", "ATR 动态网格策略已停止", AlarmLevel.WARNING);
         } catch (Exception e) {
             logger.error("策略销毁异常", e);
         }
     }
 
-    /**
-     * 同步账户信息（定时任务示例）
-     */
-    private void syncAccount() {
-        try {
-            logger.info("执行定时任务：同步账户信息");
-            AccountVO account = getAccount();
-            if (account != null) {
-                logger.info("账户名称：{}", account.getName());
-            }
+    // ======================== 初始化 ========================
 
-            // 更新账户余额示例
-            updateAccountBalance(new BigDecimal("10000.00"), new BigDecimal("8000.00"), new BigDecimal("2000.00"));
+    private void initBitGetClient() {
+        bitGetClient = CommonConstant.exchangeFactory.createExchange(ExchangeType.BITGET);
+        bitGetClient.changeTestMode(testMode);
+        AccountVO account = getAccount();
+        bitGetClient.init(account.getApiKey(), account.getSecretKey(), account.getPassphrase(),
+                null, CommonConstant.webSocketManager);
+        try {
+            bitGetClient.setLeverage(getSymbol(), leverage);
         } catch (Exception e) {
-            logger.error("同步账户信息异常", e);
+            logger.warn("设置杠杆失败：{}", e.getMessage());
+        }
+        try {
+            bitGetClient.createPublicWebsocket(webSocketMessageHandler);
+            bitGetClient.createPrivateWebsocket(webSocketMessageHandler);
+        } catch (Exception e) {
+            throw new RuntimeException("BitGet WebSocket 连接失败", e);
         }
     }
 
-    /**
-     * 提交订单信息示例（可根据实际情况调用）
-     */
-    private void submitOrderExample() {
-        JSONObject orderInfo = new JSONObject();
-        orderInfo.put("robotId", 1993936305684348930L);
-        orderInfo.put("clientOrderId", "CLIENT_ORDER_" + System.currentTimeMillis());
-        orderInfo.put("orderId", "EXCHANGE_ORDER_123");
-        orderInfo.put("avgPrice", new BigDecimal("2000.50"));
-        orderInfo.put("cumQty", new BigDecimal("1.0"));
-        orderInfo.put("origQty", new BigDecimal("1.0"));
-        orderInfo.put("price", new BigDecimal("2000.00"));
-        orderInfo.put("symbol", "BTCUSDT");
-        orderInfo.put("leverage", 10);
-        // 注意：以下字段需要根据实际的枚举类型设置
-        orderInfo.put("side", OrderSide.BUY);
-        orderInfo.put("positionSide", PositionSide.LONG);
-        orderInfo.put("orderStatus", OrderStatus.FILLED);
-
-        AgentResult result = submitOrder(orderInfo);
-        logger.info("提交订单结果：code={}, msg={}", result.getCode(), result.getMsg());
+    private void initCharts() {
+        statusChart = createChart(RobotChartType.TEXT, "网格状态", 1, 1, 24);
+        gridTableChart = createChart(RobotChartType.TABLE, "网格明细", 2, 2, 24);
     }
 
-    /**
-     * 提交仓位信息示例（可根据实际情况调用）
-     */
-    private void submitPositionExample() {
-        JSONObject positionInfo = new JSONObject();
-        positionInfo.put("robotId", 1993936305684348930L);
-        positionInfo.put("clientPositionId", "POSITION_" + System.currentTimeMillis());
-        positionInfo.put("profitValue", new BigDecimal("100.50"));
-        positionInfo.put("unrealizedProfitValue", new BigDecimal("50.25"));
-        positionInfo.put("symbol", "BTCUSDT");
-        positionInfo.put("leverage", 10);
-        positionInfo.put("openAvgPrice", new BigDecimal("2000.00"));
-        positionInfo.put("qty", new BigDecimal("1.0"));
-        // 注意：以下字段需要根据实际的枚举类型设置
-        positionInfo.put("positionSide", PositionSide.LONG);
-        positionInfo.put("marginType", MarginType.ISOLATED);
-        positionInfo.put("qtyUnit", QtyUnitType.COIN);
-        positionInfo.put("positionStatus", PositionStatus.POSITION);
+    // ======================== ATR 与网格间距 ========================
 
-        AgentResult result = submitPosition(positionInfo);
-        logger.info("提交仓位结果：code={}, msg={}", result.getCode(), result.getMsg());
+    private void refreshGridGap(boolean force) {
+        long now = System.currentTimeMillis();
+        long intervalMs = gridAdjustIntervalMinutes * 60_000L;
+        if (!force && lastGridAdjustTime > 0 && now - lastGridAdjustTime < intervalMs) {
+            return;
+        }
+
+        try {
+            BigDecimal atr = fetchAtr();
+            if (atr == null) {
+                logger.warn("ATR 计算失败，数据不足");
+                return;
+            }
+
+            BigDecimal rawGap = atr.multiply(atrMultiplier);
+            BigDecimal gap = rawGap.max(minGap).min(maxGap).setScale(pricePrecision, RoundingMode.HALF_UP);
+
+            BigDecimal oldGap = currentGridGap;
+            currentAtr = atr;
+            currentGridGap = gap;
+            lastGridAdjustTime = now;
+
+            if (oldGap != null && oldGap.compareTo(gap) != 0) {
+                logger.info("网格间距调整：{} -> {}（ATR={}）", oldGap, gap, atr);
+                submitAlarm("网格间距调整",
+                        String.format("间距 %s -> %s，ATR=%s，已有挂单保持不变，止盈按新间距计算",
+                                formatPrice(oldGap), formatPrice(gap), formatPrice(atr)),
+                        AlarmLevel.INFO);
+            }
+        } catch (Exception e) {
+            logger.error("刷新网格间距失败", e);
+        }
     }
 
-    /**
-     * 消息推送示例（可根据实际情况调用）
-     */
-    private void pushMessageExample() {
+    private BigDecimal fetchAtr() throws Exception {
         JSONObject params = new JSONObject();
-        params.put("email", "975303544@qq.com");
-        ApiResult result = pushMessage(MessagePushType.EMAIL, "欢迎使用UU量化",
-                "您的订单已成交，成交均价：2000.87，请注意！",
-                params
-        );
-        logger.info("消息推送结果：code={} msg={}", result.getCode(), result.getMsg());
+        params.put("symbol", getPlainSymbol());
+        params.put("granularity", normalizeKlineInterval(klineInterval));
+        params.put("limit", String.valueOf(klinePeriod + 2));
+
+        JSONArray klines = bitGetClient.getKLines(params);
+        if (klines == null || klines.isEmpty()) {
+            return null;
+        }
+        // BitGet 返回倒序，转为升序
+        JSONArray sorted = new JSONArray();
+        for (int i = klines.size() - 1; i >= 0; i--) {
+            sorted.add(klines.getJSONArray(i));
+        }
+        return AtrCalculator.calculate(sorted, klinePeriod);
+    }
+
+    private String normalizeKlineInterval(String interval) {
+        if (interval == null) {
+            return "5m";
+        }
+        String normalized = interval.trim();
+        if (normalized.endsWith("m") || normalized.endsWith("H") || normalized.endsWith("D")) {
+            return normalized;
+        }
+        return normalized + "m";
+    }
+
+    // ======================== 价格边界 ========================
+
+    private void checkPriceBounds() {
+        if (currentPrice == null) {
+            return;
+        }
+
+        if (!upperBoundPaused && currentPrice.compareTo(upperBound) > 0) {
+            upperBoundPaused = true;
+            submitAlarm("价格超上限",
+                    String.format("当前价 %s 突破上限 %s，暂停新建买单", formatPrice(currentPrice), formatPrice(upperBound)),
+                    AlarmLevel.WARNING);
+        } else if (upperBoundPaused && currentPrice.compareTo(upperBound) <= 0) {
+            upperBoundPaused = false;
+            submitAlarm("恢复交易", "价格回到上限以内，恢复新建买单", AlarmLevel.INFO);
+        }
+
+        if (!lowerBoundPaused && currentPrice.compareTo(lowerBound) < 0) {
+            lowerBoundPaused = true;
+            submitAlarm("价格破下限",
+                    String.format("当前价 %s 跌破下限 %s，暂停新建买单", formatPrice(currentPrice), formatPrice(lowerBound)),
+                    AlarmLevel.ERROR);
+        } else if (lowerBoundPaused && currentPrice.compareTo(lowerBound) >= 0) {
+            lowerBoundPaused = false;
+            submitAlarm("恢复交易", "价格回到下限以上，恢复新建买单", AlarmLevel.INFO);
+        }
+    }
+
+    private boolean canPlaceBuyOrders() {
+        return !upperBoundPaused && !lowerBoundPaused;
+    }
+
+    // ======================== 网格挂单 ========================
+
+    private void placeInitialBuyGrids() {
+        if (currentPrice == null || currentGridGap == null) {
+            fetchCurrentPriceFromRest();
+        }
+        if (currentPrice == null || currentGridGap == null) {
+            return;
+        }
+
+        synchronized (tradeLock) {
+            int remainingSlots = gridCount - pendingBuyOrders.size();
+            if (remainingSlots <= 0) {
+                return;
+            }
+            BigDecimal price = alignPriceDown(currentPrice, currentGridGap);
+            int placed = 0;
+            while (price.compareTo(lowerBound) >= 0 && placed < remainingSlots) {
+                if (!hasBuyOrderAt(price)) {
+                    placeLimitBuyOrder(price);
+                    placed++;
+                }
+                price = price.subtract(currentGridGap);
+            }
+        }
+    }
+
+    private void replenishBuyGrids() {
+        if (!canPlaceBuyOrders() || currentGridGap == null) {
+            return;
+        }
+
+        synchronized (tradeLock) {
+            if (pendingBuyOrders.size() >= gridCount) {
+                return;
+            }
+
+            BigDecimal lowestPending = findLowestPendingBuyPrice();
+            BigDecimal nextBuyPrice;
+
+            if (lowestPending != null) {
+                nextBuyPrice = lowestPending.subtract(currentGridGap);
+            } else if (currentPrice != null) {
+                nextBuyPrice = alignPriceDown(currentPrice, currentGridGap);
+            } else {
+                return;
+            }
+
+            if (nextBuyPrice.compareTo(lowerBound) >= 0 && !hasBuyOrderAt(nextBuyPrice)) {
+                placeLimitBuyOrder(nextBuyPrice);
+            }
+        }
+    }
+
+    private void placeLimitBuyOrder(BigDecimal price) {
+        if (pendingBuyOrders.size() >= gridCount) {
+            return;
+        }
+        BigDecimal normalizedPrice = normalizePrice(price);
+        if (normalizedPrice.compareTo(lowerBound) < 0 || normalizedPrice.compareTo(upperBound) > 0) {
+            return;
+        }
+        if (hasBuyOrderAt(normalizedPrice)) {
+            return;
+        }
+
+        String clientOrderId = buildClientOrderId("BUY", normalizedPrice);
+        try {
+            JSONObject orderInfo = buildOrderRequest("buy", "open", "limit", normalizedPrice, baseQuantity, false);
+            orderInfo.put("clientOid", clientOrderId);
+
+            JSONObject result = bitGetClient.placeOrder(orderInfo);
+            String exchangeOrderId = result.getString("orderId");
+
+            GridBuyOrder gridBuyOrder = new GridBuyOrder(clientOrderId, normalizedPrice);
+            gridBuyOrder.exchangeOrderId = exchangeOrderId;
+            pendingBuyOrders.put(priceKey(normalizedPrice), gridBuyOrder);
+
+            logger.info("挂买单成功：价格={}，订单号={}", normalizedPrice, exchangeOrderId);
+            submitOrderSync(exchangeOrderId, clientOrderId, normalizedPrice, baseQuantity,
+                    OrderSide.BUY, OrderStatus.NEW);
+        } catch (Exception e) {
+            logger.error("挂买单失败，价格={}", normalizedPrice, e);
+            submitAlarm("挂买单失败",
+                    String.format("价格 %s：%s", formatPrice(normalizedPrice), e.getMessage()),
+                    AlarmLevel.ERROR);
+        }
+    }
+
+    // ======================== 止盈（市价平仓） ========================
+
+    private void processTakeProfit() {
+        if (currentGridGap == null || currentPrice == null) {
+            return;
+        }
+
+        for (GridPosition position : openPositions) {
+            BigDecimal tpPrice = position.takeProfitPrice(currentGridGap);
+            if (currentPrice.compareTo(tpPrice) < 0) {
+                continue;
+            }
+            if (closingPositions.putIfAbsent(position.clientPositionId, Boolean.TRUE) != null) {
+                continue;
+            }
+            marketClosePosition(position, tpPrice);
+        }
+    }
+
+    private void marketClosePosition(GridPosition position, BigDecimal tpPrice) {
+        synchronized (tradeLock) {
+            try {
+                JSONObject orderInfo = buildOrderRequest("sell", "close", "market", null,
+                        position.quantity, true);
+                orderInfo.put("clientOid", buildClientOrderId("SELL", position.entryPrice));
+
+                JSONObject result = bitGetClient.placeOrder(orderInfo);
+                String exchangeOrderId = result.getString("orderId");
+
+                logger.info("市价止盈：入场={}，止盈价={}，当前价={}，订单号={}",
+                        position.entryPrice, tpPrice, currentPrice, exchangeOrderId);
+
+                submitAlarm("网格止盈",
+                        String.format("入场 %s，止盈目标 %s，当前价 %s，市价平仓已提交",
+                                formatPrice(position.entryPrice), formatPrice(tpPrice), formatPrice(currentPrice)),
+                        AlarmLevel.INFO);
+
+                submitOrderSync(exchangeOrderId, position.clientPositionId, currentPrice, position.quantity,
+                        OrderSide.SELL, OrderStatus.NEW);
+            } catch (Exception e) {
+                closingPositions.remove(position.clientPositionId);
+                logger.error("市价止盈失败，入场价={}", position.entryPrice, e);
+                submitAlarm("止盈失败",
+                        String.format("入场 %s：%s", formatPrice(position.entryPrice), e.getMessage()),
+                        AlarmLevel.ERROR);
+            }
+        }
+    }
+
+    // ======================== WebSocket 事件处理 ========================
+
+    private void handleTicker(JSONObject ticker) {
+        String symbol = ticker.getString("symbol");
+        if (!getPlainSymbol().equals(symbol)) {
+            return;
+        }
+        BigDecimal lastPrice = ticker.getBigDecimal("lastPr");
+        if (lastPrice == null) {
+            lastPrice = ticker.getBigDecimal("last");
+        }
+        if (lastPrice != null) {
+            currentPrice = lastPrice;
+        }
+    }
+
+    private void handleFill(JSONObject fill) {
+        String symbol = fill.getString("symbol");
+        if (!getPlainSymbol().equals(symbol)) {
+            return;
+        }
+
+        String side = fill.getString("side");
+        String tradeSide = fill.getString("tradeSide");
+        BigDecimal price = fill.getBigDecimal("price");
+        BigDecimal volume = fill.getBigDecimal("baseVolume");
+        String orderId = fill.getString("orderId");
+
+        if ("buy".equals(side) && "open".equals(tradeSide)) {
+            onBuyFilled(price, volume, orderId);
+        } else if ("sell".equals(side) && "close".equals(tradeSide)) {
+            onSellFilled(price, volume, orderId);
+        }
+    }
+
+    private void handleOrderUpdate(JSONObject order) {
+        String symbol = order.getString("symbol");
+        if (!getPlainSymbol().equals(symbol)) {
+            return;
+        }
+        String status = order.getString("status");
+        if (!"cancelled".equals(status) && !"canceled".equals(status)) {
+            return;
+        }
+
+        String side = order.getString("side");
+        if (!"buy".equals(side)) {
+            return;
+        }
+
+        BigDecimal price = order.getBigDecimal("price");
+        if (price != null) {
+            pendingBuyOrders.remove(priceKey(normalizePrice(price)));
+        }
+    }
+
+    private void onBuyFilled(BigDecimal price, BigDecimal volume, String orderId) {
+        BigDecimal normalizedPrice = normalizePrice(price);
+        pendingBuyOrders.remove(priceKey(normalizedPrice));
+
+        String clientPositionId = "POS_" + normalizedPrice.toPlainString();
+        GridPosition position = new GridPosition(clientPositionId, normalizedPrice, volume);
+        openPositions.add(position);
+
+        BigDecimal tpPrice = position.takeProfitPrice(currentGridGap);
+        logger.info("买单成交：价格={}，数量={}，止盈目标={}", normalizedPrice, volume, tpPrice);
+
+        submitAlarm("网格买入成交",
+                String.format("买入价 %s，数量 %s，止盈目标 %s（间距 %s）",
+                        formatPrice(normalizedPrice), volume.toPlainString(),
+                        formatPrice(tpPrice), formatPrice(currentGridGap)),
+                AlarmLevel.INFO);
+
+        submitOrderSync(orderId, clientPositionId, normalizedPrice, volume, OrderSide.BUY, OrderStatus.FILLED);
+        submitPositionSync(clientPositionId, normalizedPrice, volume, true);
+    }
+
+    private void onSellFilled(BigDecimal price, BigDecimal volume, String orderId) {
+        GridPosition matched = null;
+        for (String closingId : closingPositions.keySet()) {
+            for (GridPosition position : openPositions) {
+                if (position.clientPositionId.equals(closingId)) {
+                    matched = position;
+                    break;
+                }
+            }
+            if (matched != null) {
+                break;
+            }
+        }
+        if (matched == null) {
+            for (GridPosition position : openPositions) {
+                if (position.quantity.compareTo(volume) == 0) {
+                    matched = position;
+                    break;
+                }
+            }
+        }
+        if (matched == null && !openPositions.isEmpty()) {
+            matched = openPositions.get(0);
+        }
+
+        if (matched != null) {
+            openPositions.remove(matched);
+            closingPositions.remove(matched.clientPositionId);
+            submitPositionSync(matched.clientPositionId, price, matched.quantity, false);
+        }
+
+        logger.info("卖单成交（止盈）：价格={}，数量={}", price, volume);
+        submitAlarm("网格止盈成交",
+                String.format("卖出价 %s，数量 %s", formatPrice(price), volume.toPlainString()),
+                AlarmLevel.INFO);
+        submitOrderSync(orderId, matched != null ? matched.clientPositionId : "CLOSE", price, volume,
+                OrderSide.SELL, OrderStatus.FILLED);
+
+        // 成交后补充下一格买单
+        replenishBuyGrids();
+    }
+
+    // ======================== 交易所同步 ========================
+
+    private void syncOpenOrdersFromExchange() {
+        try {
+            JSONArray openOrders = bitGetClient.getOpenOrders(getSymbol());
+            if (openOrders == null) {
+                return;
+            }
+            for (int i = 0; i < openOrders.size(); i++) {
+                JSONObject order = openOrders.getJSONObject(i);
+                if (!"buy".equals(order.getString("side"))) {
+                    continue;
+                }
+                if (!"open".equals(order.getString("tradeSide"))) {
+                    continue;
+                }
+                BigDecimal price = normalizePrice(order.getBigDecimal("price"));
+                String clientOid = order.getString("clientOid");
+                if (clientOid == null) {
+                    clientOid = "SYNC_" + price.toPlainString();
+                }
+                GridBuyOrder gridBuyOrder = new GridBuyOrder(clientOid, price);
+                gridBuyOrder.exchangeOrderId = order.getString("orderId");
+                pendingBuyOrders.put(priceKey(price), gridBuyOrder);
+            }
+            logger.info("同步挂单 {} 笔", pendingBuyOrders.size());
+        } catch (Exception e) {
+            logger.warn("同步挂单失败：{}", e.getMessage());
+        }
+    }
+
+    private void fetchCurrentPriceFromRest() {
+        try {
+            JSONObject ticker = bitGetClient.getTicker(getSymbol());
+            if (ticker != null) {
+                BigDecimal last = ticker.getBigDecimal("lastPr");
+                if (last == null) {
+                    last = ticker.getBigDecimal("last");
+                }
+                currentPrice = last;
+            }
+        } catch (Exception e) {
+            logger.warn("获取 ticker 失败：{}", e.getMessage());
+        }
+    }
+
+    private void syncAccount() {
+        try {
+            JSONArray balance = bitGetClient.getBalance();
+            for (int i = 0; i < balance.size(); i++) {
+                JSONObject item = balance.getJSONObject(i);
+                if ("USDT".equals(item.getString("marginCoin"))) {
+                    updateAccountBalance(
+                            item.getBigDecimal("accountEquity"),
+                            item.getBigDecimal("available"),
+                            item.getBigDecimal("locked"));
+                }
+            }
+        } catch (Exception e) {
+            logger.error("同步账户失败", e);
+        }
+    }
+
+    // ======================== 平台数据同步 ========================
+
+    private void submitOrderSync(String orderId, String clientOrderId, BigDecimal price,
+                                 BigDecimal qty, OrderSide side, OrderStatus status) {
+        if (robotId == null) {
+            return;
+        }
+        JSONObject orderInfo = new JSONObject();
+        orderInfo.put("robotId", robotId);
+        orderInfo.put("clientOrderId", clientOrderId);
+        orderInfo.put("orderId", orderId);
+        orderInfo.put("price", price);
+        orderInfo.put("origQty", qty);
+        orderInfo.put("symbol", getSymbol());
+        orderInfo.put("leverage", leverage);
+        orderInfo.put("side", side);
+        orderInfo.put("positionSide", PositionSide.LONG);
+        orderInfo.put("orderStatus", status);
+        submitOrder(orderInfo);
+    }
+
+    private void submitPositionSync(String clientPositionId, BigDecimal price,
+                                    BigDecimal qty, boolean open) {
+        if (robotId == null) {
+            return;
+        }
+        JSONObject positionInfo = new JSONObject();
+        positionInfo.put("robotId", robotId);
+        positionInfo.put("clientPositionId", clientPositionId);
+        positionInfo.put("symbol", getSymbol());
+        positionInfo.put("leverage", leverage);
+        positionInfo.put("positionSide", PositionSide.LONG);
+        positionInfo.put("marginType", MarginType.CROSSED);
+        positionInfo.put("openAvgPrice", price);
+        positionInfo.put("qty", qty);
+        positionInfo.put("qtyUnit", QtyUnitType.COIN);
+        positionInfo.put("positionStatus", open ? PositionStatus.POSITION : PositionStatus.CLOSED);
+        submitPosition(positionInfo);
+    }
+
+    // ======================== 仪表盘 ========================
+
+    private void updateDashboard() {
+        if (statusChart == null) {
+            return;
+        }
+
+        StringBuilder sb = new StringBuilder();
+        sb.append("<div>时间：").append(LocalDateTime.now()).append("</div>");
+        sb.append("<div>当前价：").append(formatPrice(currentPrice)).append("</div>");
+        sb.append("<div>ATR：").append(formatPrice(currentAtr)).append("</div>");
+        sb.append("<div>网格间距：").append(formatPrice(currentGridGap)).append("</div>");
+        sb.append("<div>待成交买单：").append(pendingBuyOrders.size())
+                .append(" / ").append(gridCount).append(" 笔</div>");
+        sb.append("<div>持仓待止盈：").append(openPositions.size()).append(" 笔</div>");
+        sb.append("<div>上限暂停：").append(upperBoundPaused ? "是" : "否").append("</div>");
+        sb.append("<div>下限暂停：").append(lowerBoundPaused ? "是" : "否").append("</div>");
+
+        JSONObject style = new JSONObject();
+        style.put("fontSize", "14px");
+        updateText(statusChart, sb.toString(), style);
+
+        updateGridTable();
+    }
+
+    private void updateGridTable() {
+        if (gridTableChart == null || currentGridGap == null) {
+            return;
+        }
+
+        JSONArray rows = new JSONArray();
+
+        List<GridBuyOrder> pending = new ArrayList<>(pendingBuyOrders.values());
+        pending.sort(Comparator.comparing(o -> o.buyPrice, Comparator.reverseOrder()));
+        for (GridBuyOrder order : pending) {
+            JSONObject row = new JSONObject();
+            row.put("type", "待成交买单");
+            row.put("price", formatPrice(order.buyPrice));
+            row.put("quantity", baseQuantity.toPlainString());
+            row.put("takeProfit", "-");
+            rows.add(row);
+        }
+
+        List<GridPosition> positions = new ArrayList<>(openPositions);
+        positions.sort(Comparator.comparing(p -> p.entryPrice, Comparator.reverseOrder()));
+        for (GridPosition position : positions) {
+            JSONObject row = new JSONObject();
+            row.put("type", "持仓");
+            row.put("price", formatPrice(position.entryPrice));
+            row.put("quantity", position.quantity.toPlainString());
+            row.put("takeProfit", formatPrice(position.takeProfitPrice(currentGridGap)));
+            rows.add(row);
+        }
+
+        JSONObject option = new JSONObject();
+        option.put("height", 400);
+        JSONArray columns = new JSONArray();
+
+        columns.add(buildColumn("类型", "type", 120));
+        columns.add(buildColumn("价格", "price", 150));
+        columns.add(buildColumn("数量", "quantity", 150));
+        columns.add(buildColumn("止盈价", "takeProfit", 150));
+        option.put("column", columns);
+
+        ApiResult result = updateTable(gridTableChart, rows, option);
+        if (result.getCode() != 200) {
+            logger.debug("更新表格失败：{}", result.getMsg());
+        }
+    }
+
+    private JSONObject buildColumn(String label, String prop, int width) {
+        JSONObject col = new JSONObject();
+        col.put("label", label);
+        col.put("prop", prop);
+        col.put("width", width);
+        return col;
+    }
+
+    // ======================== 工具方法 ========================
+
+    private JSONObject buildOrderRequest(String side, String tradeSide, String orderType,
+                                           BigDecimal price, BigDecimal size, boolean reduceOnly) {
+        JSONObject orderInfo = new JSONObject();
+        orderInfo.put("symbol", getPlainSymbol());
+        orderInfo.put("marginMode", MARGIN_MODE);
+        orderInfo.put("size", normalizeQuantity(size).toPlainString());
+        orderInfo.put("side", side);
+        orderInfo.put("tradeSide", tradeSide);
+        orderInfo.put("orderType", orderType);
+        if (price != null) {
+            orderInfo.put("price", normalizePrice(price).toPlainString());
+        }
+        if (reduceOnly) {
+            orderInfo.put("reduceOnly", "YES");
+        }
+        return orderInfo;
+    }
+
+    private BigDecimal findLowestPendingBuyPrice() {
+        return pendingBuyOrders.values().stream()
+                .map(o -> o.buyPrice)
+                .min(BigDecimal::compareTo)
+                .orElse(null);
+    }
+
+    private boolean hasBuyOrderAt(BigDecimal price) {
+        return pendingBuyOrders.containsKey(priceKey(normalizePrice(price)));
+    }
+
+    private BigDecimal alignPriceDown(BigDecimal price, BigDecimal gap) {
+        if (gap == null || gap.compareTo(BigDecimal.ZERO) <= 0) {
+            return normalizePrice(price);
+        }
+        BigDecimal steps = price.divide(gap, 0, RoundingMode.DOWN);
+        return normalizePrice(steps.multiply(gap));
+    }
+
+    private BigDecimal normalizePrice(BigDecimal price) {
+        return price.setScale(pricePrecision, RoundingMode.HALF_UP);
+    }
+
+    private BigDecimal normalizeQuantity(BigDecimal qty) {
+        return qty.setScale(quantityPrecision, RoundingMode.DOWN);
+    }
+
+    private String priceKey(BigDecimal price) {
+        return normalizePrice(price).toPlainString();
+    }
+
+    private String formatPrice(BigDecimal price) {
+        if (price == null) {
+            return "-";
+        }
+        return normalizePrice(price).toPlainString();
+    }
+
+    private String buildClientOrderId(String prefix, BigDecimal price) {
+        return prefix + "_" + getPlainSymbol() + "_" + price.toPlainString() + "_" + System.currentTimeMillis();
     }
 }
diff --git a/src/main/java/com/sample/trend/strategy/util/AtrCalculator.java b/src/main/java/com/sample/trend/strategy/util/AtrCalculator.java
new file mode 100644
index 0000000..25447f0
--- /dev/null
+++ b/src/main/java/com/sample/trend/strategy/util/AtrCalculator.java
@@ -0,0 +1,59 @@
+package com.sample.trend.strategy.util;
+
+import com.alibaba.fastjson2.JSONArray;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * ATR（Average True Range）计算工具
+ */
+public final class AtrCalculator {
+
+    private AtrCalculator() {
+    }
+
+    /**
+     * 根据 K 线数据计算 ATR。
+     * K 线格式：[timestamp, open, high, low, close, ...]
+     *
+     * @param klines K 线数组，按时间升序
+     * @param period ATR 周期
+     * @return ATR 值，数据不足时返回 null
+     */
+    public static BigDecimal calculate(JSONArray klines, int period) {
+        if (klines == null || klines.size() < period + 1) {
+            return null;
+        }
+
+        List<BigDecimal> trueRanges = new ArrayList<>();
+        for (int i = 1; i < klines.size(); i++) {
+            JSONArray current = klines.getJSONArray(i);
+            JSONArray previous = klines.getJSONArray(i - 1);
+
+            BigDecimal high = current.getBigDecimal(2);
+            BigDecimal low = current.getBigDecimal(3);
+            BigDecimal prevClose = previous.getBigDecimal(4);
+
+            BigDecimal range1 = high.subtract(low);
+            BigDecimal range2 = high.subtract(prevClose).abs();
+            BigDecimal range3 = low.subtract(prevClose).abs();
+
+            BigDecimal tr = range1.max(range2).max(range3);
+            trueRanges.add(tr);
+        }
+
+        if (trueRanges.size() < period) {
+            return null;
+        }
+
+        BigDecimal sum = BigDecimal.ZERO;
+        int start = trueRanges.size() - period;
+        for (int i = start; i < trueRanges.size(); i++) {
+            sum = sum.add(trueRanges.get(i));
+        }
+        return sum.divide(BigDecimal.valueOf(period), 8, RoundingMode.HALF_UP);
+    }
+}